JP2013020841A - Battery holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery holder capable of configuring a battery pack that can have various voltage outputs, capacities, forms, etc.SOLUTION: The battery holder comprises: an insulation holder body 10 for housing a prescribed number of unit cells; first pole terminals 20 and second pole terminals 30 which are insulated from each other and arranged on the outer surface of the holder body 10; and first and second connection members which electrically connect between first poles of unit cells and the first pole terminals 20, between second poles of the unit cells and the second pole terminals 30 respectively, the first and the second connection members are incorporated in the holder body 10. As for the first pole terminals 20 and the second pole terminals 30, between a plural number of holder bodies 10, at least one or more contacts are possible with the first pole terminals 20 and the second pole terminals 30, or with the first pole terminals together, or the second pole terminals together. Also, the first pole terminals 20 and the second pole terminals 30 are arranged at two or more positions in a peripheral direction in relation to the center line passing the holder body 10 so that a serial connection and a connection combining a serial connection and a parallel connection are both possible, making it possible to configure a battery pack in which a plurality of holder bodies 10 housing unit cells are combined by electrical connection.

Description

  The present invention relates to a battery holder that can store one or more single cells to form a battery unit and that can combine a plurality of battery units to form a battery pack.

The following prior arts 1 and 2 have been proposed as prior arts capable of configuring a battery pack by combining a plurality of unit cells.
Prior Art 1 discloses a battery main body (battery case), a positive or negative first terminal having a concave female screw portion in the battery main body, and a convex male screw that can be screwed into the concave female screw portion of the first terminal. This is a single battery provided with one negative electrode having a threaded portion or one second terminal for a positive electrode (for example, see Patent Document 1). In this case, an assembled battery in which a plurality of unit cells are combined is configured by screwing the second terminal of another unit cell into the first terminal of one unit cell and electrically connecting them in series.

  The prior art 2 is an assembled battery including a unit cell, a connector member, first and second conductive members, and a container that stores the unit cell (see, for example, Patent Document 2). The assembled battery is formed by electrically connecting a plurality of lithium batteries in series. The connector member is formed by forming one positive snap terminal and one negative snap terminal on the main surface of the plate-shaped main body. The positive and negative electrodes of the battery assembly are electrically connected to the positive and negative snap terminals by the first and second conductive members. In this case, an assembled battery in which a plurality of assembled batteries are combined is configured by fitting a positive electrode snap terminal of another assembled battery into a negative electrode snap terminal of one assembled battery and electrically connecting them in series.

JP 2010-80411 A JP 2009-252607 A

In recent years, electric vehicles such as electric vehicles and hybrid vehicles having a small environmental load have been put into practical use, and assembled batteries are used as power sources for the electric vehicles. Since an electric vehicle is required to be lightweight in order to increase energy efficiency, it is difficult to secure a wide installation space for the assembled battery, and it is also necessary to reduce the weight of the assembled battery itself. In addition, the assembled battery is required not only to have a performance that can handle a long mileage and acceleration at full charge, but also to have characteristics corresponding to the vehicle type.
Therefore, in particular, each battery unit (each cell or each assembled battery) constituting the assembled battery as a power source for an electric vehicle can have various connection forms so that various voltage outputs, capacities, shapes, and the like can be obtained. It is desirable to have a connection structure.

However, in the case of the prior art 1, since the number of the first terminal and the second terminal is one each, the connection form combining a plurality of single cells without using the lead wire is only one-way series connection, An assembled battery with various capacities and shapes cannot be constructed.
Also, in the case of the prior art 2, since only one positive snap terminal and one negative snap terminal are provided on the same surface, the connection form in which a plurality of assembled batteries are combined without using lead wires is staggered. In other words, it is not possible to construct an assembled battery in which various capacities and shapes are obtained.
Therefore, when an assembled battery using the single battery of the prior art 1 or the assembled battery using the assembled battery of the prior art 2 is designed to have various voltage outputs, capacities, shapes, etc., a plurality of different battery units or sets The batteries are electrically connected with lead wires. Therefore, the assembly efficiency of the assembled battery is lowered, and separate parts such as a holding member that integrally holds the lead wire and each assembled battery are required, resulting in an increase in manufacturing cost. Furthermore, these conventional battery units are not suitable for effective installation in a narrow and complicated space because the connection form is limited to serial connection as a single unit.

  This invention is made | formed in view of such a subject, and it aims at providing the battery holder which can produce easily the assembled battery from which various voltage outputs, a capacity | capacitance, a shape, etc. are obtained. .

  According to the present invention, an insulative holder main body that stores a predetermined number of unit cells, first and second electrode terminals provided on the outer surface of the holder main body so as to be insulated from each other, and a first of the unit cells. A first connection member that electrically connects one pole and a first electrode terminal; and a second connection member that electrically connects a second electrode and a second electrode terminal of the unit cell; And the second connecting member is contained in the holder body, and the first pole terminal and the second pole terminal are in contact with the first pole terminal and the second pole terminal between the plurality of holder bodies. The holder body so that one or more contacts among the contacts between the children and the contacts between the second electrode terminals are possible, and both the series connection and the combination of series and parallel are possible. Is placed at two or more locations in the circumferential direction with respect to the center line passing through The plurality of the holder body which is combined by an electrical connection, the battery holder can be the assembled battery is provided.

  According to the present invention, the plurality of holder bodies can be connected in series and in both series and parallel combination, or in series connection, parallel connection, and combination of series and parallel. Since the assembled battery can be configured by combining two or more electrical connections, it is possible to easily produce an assembled battery with various voltage outputs, capacities, shapes, and the like.

1A to 1D are a plan view, a left side view, a front view, and a right side view showing Embodiment 1-1A of the battery holder of the present invention. 2A to 2C are a cross-sectional view taken along line AA in FIG. 1C, a cross-sectional view taken along line BB in FIG. 1D, and a cross-sectional view taken along line CC in FIG. . FIG. 3 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series with the battery holder according to Embodiment 1-1A. FIG. 4 is a conceptual diagram showing a circuit of the assembled battery of FIG. FIG. 5 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series and in parallel with the battery holder of Embodiment 1-1A. FIG. 6 is a conceptual diagram showing a circuit of the assembled battery of FIG. 7A to 7D are a plan sectional view, a left side view, a front view, and a right side view showing a modification of Embodiment 1-1A of the battery holder of the present invention. 8A to 8D are a plan view, a left side view, a front view, and a right side view showing Embodiment 1-1B of the battery holder of the present invention. FIG. 9 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series with the battery holder according to Embodiment 1-1B. FIG. 10 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series and in parallel with the battery holder according to Embodiment 1-1B. 11A to 11D are a plan view, a left side view, a front view, and a right side view showing Embodiment 1-2A of the battery holder of the present invention. 12A to 12C are a cross-sectional view taken along line AA in FIG. 11C, a cross-sectional view taken along line BB in FIG. 11D, and a cross-sectional view taken along line CC in FIG. . FIG. 13: is a top view which shows the assembled battery which combined the battery pack provided with the single battery in the battery holder of Embodiment 1-2A in parallel. FIG. 14 is a conceptual diagram showing a circuit of the assembled battery of FIG. FIG. 15 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series with the battery holder according to Embodiment 1-2A. FIG. 16 is a conceptual diagram showing a circuit of the assembled battery of FIG. 17A to 17D are a plan sectional view, a left side view, a front view, and a right side view showing a modified example of the embodiment 1-2A of the battery holder of the present invention. 18A to 18D are a plan view, a left side view, a front view, and a right side view showing Embodiment 1-2B of the battery holder of the present invention. FIG. 19 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in parallel with the battery holder according to Embodiment 1-2B. FIG. 20 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series with the battery holder of Embodiment 1-2B. FIGS. 21A to 21D are a plan view, a left side view, a front view, and a right side view showing Embodiment 2-1A of the battery holder of the present invention. 22A to 22C are a cross-sectional view taken along line AA in FIG. 21A, a cross-sectional view taken along line BB in FIG. 21B, and a cross-sectional view taken along line CC in FIG. . FIG. 23 (A) is a front view showing a battery pack in which a plurality of battery packs each having a single battery are combined in series with the battery holder of Embodiment 2-1A, and FIG. 23 (B) is a left side view. FIG. 24 is a conceptual diagram showing a circuit of the assembled battery of FIG. FIG. 25 is a perspective view showing an assembled battery in which a plurality of battery packs each including a single battery are mounted on the battery holder of Embodiment 2-1A in series and in parallel and not only in the planar direction but also in the height direction. FIG. 26 is a conceptual diagram showing a circuit of the assembled battery in FIG. 27A to 27D are a plan sectional view, a left side view, a front sectional view, and a right side view showing a modification of the embodiment 2-1A of the battery holder of the present invention. 28A to 28D are a plan view, a left side view, a front view, and a right side view showing Embodiment 2-1B of the battery holder of the present invention. FIG. 29A is a front view showing a battery pack in which a plurality of battery packs each having a single battery are combined in series with the battery holder of Embodiment 2-1B, and FIG. 29B is a left side view. FIG. 30 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery in the battery holder of Embodiment 2-1B are combined in series and in parallel, not only in the planar direction but also in the height direction. FIGS. 31A to 31D are a plan view, a left side view, a front view, and a right side view showing the embodiment 2-2A of the battery holder of the present invention. 32A to 32C are a cross-sectional view taken along line AA in FIG. 31A, a cross-sectional view taken along line BB in FIG. 31A, and a cross-sectional view taken along line CC in FIG. . FIG. 33 (A) is a front view showing a battery assembly in which a plurality of battery packs each having a single battery are combined in parallel with the battery holder of Embodiment 2-2A, and FIG. 33 (B) is a left side view. FIG. 34 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and not only in the front-rear direction but also in the height direction in the battery holder of Embodiment 2-2A. FIG. 35 is a conceptual diagram showing a circuit of the assembled battery of FIG. 36A to 36D are a plan sectional view, a left side view, a front sectional view, and a right side view showing a modification of the embodiment 2-2A of the battery holder of the present invention. FIGS. 37A to 37D are a plan view, a left side view, a front view, and a right side view showing the embodiment 2-2B of the battery holder of the present invention. FIG. 38 (A) is a front view showing a battery pack in which a plurality of battery packs each having a single battery are combined in parallel with the battery holder of Embodiment 2-2B, and FIG. 38 (B) is a left side view. FIG. 39 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and not only in the front-rear direction but also in the height direction in the battery holder of Embodiment 2-2B. 40A to 40D are a plan view, a left side view, a front view, and a right side view showing Embodiment 3-1A of the battery holder of the present invention. 41A and 41B are a cross-sectional view taken along line AA in FIG. 40B and a cross-sectional view taken along line BB in FIG. FIG. 42 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series with the battery holder of Embodiment 3-1A not only in the left-right direction but also in the height direction. FIG. 43 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and in parallel in the battery holder of Embodiment 3-1A not only in the front-rear direction but also in the height direction. 44A to 44D are a plan view, a left side view, a front view, and a right side view showing the embodiment 3-1B of the battery holder of the present invention. FIG. 45 is a perspective view showing an assembled battery in which a plurality of battery packs each including a single battery are combined in series with the battery holder according to Embodiment 3-1B and not only in the left-right direction but also in the height direction. FIG. 46 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and in parallel in the battery holder of Embodiment 3-1B not only in the front-rear direction but also in the height direction. 47 (A) to 47 (D) are a plan view, a left side view, a front view, and a right side view showing Embodiment 3-2A of the battery holder of the present invention. 48A and 48B are a cross-sectional view taken along line AA in FIG. 47B and a cross-sectional view taken along line BB in FIG. 47A. FIG. 49 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in parallel in the battery holder of Embodiment 3-2A and not only in the left-right direction but also in the height direction. FIG. 50 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and not only in the front-rear direction but also in the height direction in the battery holder of Embodiment 3-2A. 51A to 51D are a plan view, a left side view, a front view, and a right side view showing Embodiment 3-2B of the battery holder of the present invention. FIG. 52 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in parallel in the battery holder of Embodiment 3-2B and not only in the left-right direction but also in the height direction. FIG. 53 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and not only in the front-rear direction but also in the height direction in the battery holder of Embodiment 3-2B. 54A to 54D are a plan view, a left side view, a front view, and a right side view showing the battery holder according to Embodiment 1-2AI. FIG. 55A is a plan view showing a state in which the front-facing battery pack (left figure) and the back-facing battery pack (right figure) of Embodiment 1-2AI are arranged in parallel, and FIG. It is a top view which shows the state which arranged the battery pack (left figure) of the surface 1-2 of the form 1-2A, and the battery pack (right figure) facing back in parallel. FIG. 56 is a plan view, a left side view, a front view, and a right side view showing the battery holder according to Embodiment 1-2AII. FIG. 57 is a partially omitted cross-sectional view showing an enlarged part of the battery holder according to Embodiment 1-2AII. FIG. 58 is a diagram for explaining an example of a battery pack assembled battery using the battery holder of Embodiment 1-2AII, and FIGS. 58 (A) to 58 (C) show the assembly order.

The battery holder of the present invention includes the holder body, the first and second electrode terminals provided on the outer surface of the holder body, the first connection member and the first electrode provided in the holder body. 2 connection members.
In the present invention, the arrangement of the first electrode terminal and the second electrode terminal is such that the plurality of holder bodies are in contact with each other, the contact between the first electrode terminal and the second electrode terminal, the contact between the first electrode terminals, and the second electrode. One or more of the contacts between the pole terminals, and all of the series connection and the combination of series and parallel, or the series connection, the parallel connection, and the combination of series and parallel It is configured to allow electrical connection. As a result, it is possible to construct an assembled battery from which various voltage outputs, capacities, shapes, and the like can be obtained.

In order to be able to configure various assembled batteries in this way, a plurality of first electrode terminals and a plurality of second electrode terminals are arranged at two or more locations in the circumferential direction with respect to the center line passing through the holder body. It is preferable.
Here, the “center line passing through the holder main body” means that, for example, if the holder main body is cylindrical, its axis is the center line. If the holder body is a rectangular parallelepiped, one of the three straight lines passing through the centers of the two opposing surfaces is the center line.
Specifically, the battery holder can be configured as in the following embodiments 1-1 series, 1-2 series, 2-1 series, 2-2 series, 3-1 series, and 3-2 series. .
Hereinafter, various embodiments of the battery holder of the present invention will be described in detail with reference to the drawings. In addition, the following embodiment is only an illustration and this invention is not limited to these.

<< Embodiment 1-1 series >>
In the battery holder of Embodiment 1-1 series, the first electrode terminal is disposed on one surface parallel to the center line, and the second electrode terminal is disposed on the other surface parallel to the one surface.
In this case, it is preferable that the first pole terminal and the second pole terminal are arranged at a relative position with a center angle of 180 ° with respect to the center line.
Specifically, a battery holder like Embodiment 1-1A or 1-1B mentioned later can be comprised.

(Embodiment 1-1A)
1A to 1D are a plan view, a left side view, a front view, and a right side view showing Embodiment 1-1A of the battery holder of the present invention. 2 (A) to 2 (C) are cross-sectional views taken along the line AA in FIG. 1 (C), the cross-sectional view taken along the line BB in FIG. 1 (D), and the cross-sectional view taken along the line CC in FIG. It is.
For convenience, the plane (upper surface), left side, front (front), and right side of the battery holder are defined as shown in FIGS. 1A to 1D, but the battery holder is used regardless of orientation. The same applies to other embodiments.
In the battery holder of the present invention, the first pole terminal is composed of a first pole convex terminal, the second pole terminal is composed of a second pole concave terminal, and the convex shape of the first pole terminal and the concave shape of the second pole terminal are: The distance between each two terminals provided on the same surface in the shape that can be fitted to each other and arranged in the center line direction is ½ or more of the length in the center line direction of the holder body. It is also possible (this embodiment 1-1A and later-described embodiments 2-1A and 3-1A).

The battery holder H11 of the embodiment 1-1A includes an insulating holder main body 10 that houses four unit cells E, a first electrode terminal 20 and a second electrode provided on the outer surface of the holder main body 10 so as to be insulated from each other. The electrode terminal 30, the first connection member 40 that electrically connects the first electrode e1 and the first electrode terminal 20 of the cell E, and the second electrode e2 and the second electrode terminal 30 of the cell E are electrically connected. And a second connection member 50 to be connected.
In the case of this embodiment, the battery holder H11 that can accommodate four commercially available single-type batteries (primary batteries or secondary batteries) in which the first electrode e1 is a positive electrode and the second electrode e2 is a negative electrode. However, the type, number, etc., including the shape of the cell E to be accommodated can be changed.
Hereinafter, a battery holder in which a predetermined number (four in this embodiment) of single cells is accommodated is referred to as a “battery pack”. In the following embodiments, the first electrode terminal of the battery holder is described as a positive electrode and the second electrode terminal is used as a negative electrode, but the polarity may be reversed.

  The holder body 10 includes a rectangular parallelepiped container body 10a having an opening opening upward, and a rectangular plate lid 10b that closes the opening of the container body 10a so as to be openable and closable. It is made of a resin material. Here, the holder main body 10 has a rectangular parallelepiped shape that is long in the direction of the center line L11. As shown in FIG. 1, the center line L11 is a line passing through the centers of the two surfaces of the holder body H11 where the first and second electrode terminals 20 and 30 are not disposed. In this case, both ends of the holder body 10 in the longitudinal direction A line that passes through the center of the surface.

A pair of vertical walls 10a ₁ are formed on the inner bottom surface of the container body 10a to hold the two unit cells E in the upper and lower two stages in series in the longitudinal direction of the container body 10a. A pair of protrusions 10a ₂ are formed on the upper inner surfaces of the left and right side walls of the main body 10a. Further, the right side wall of the container body 10a is formed with two holes 10a ₃ for inserting two first pole convex terminals 21 of the first pole terminal 20 described later, and the left side wall of the container body 10a. Are formed with two holes 10a ₄ through which two second electrode concave terminals 31 of the second electrode terminal 30 described later are inserted.
The lid body 10b has a pair of engaging projections 10b ₁ that engage with the pair of protrusions 10a ₂ of the container body 10a on the inner surfaces near the pair of long sides.

The first electrode terminal 20 and the second electrode terminal 30 are arranged at two or more locations in the circumferential direction with respect to the center line L11 passing through the holder body 10. In the case of this embodiment, the 1st pole terminal 20 is arrange | positioned on the right side parallel to the centerline L11, and the 2nd pole terminal 30 is arrange | positioned on the left side parallel to the right side. Further, in the present embodiment, the first pole terminal 20 and the second pole terminal 30 are arranged at a relative position where the center angle θ1 is 180 ° with respect to the center line L11. The relative position with respect to the two-pole terminal 30 may be slightly shifted up and down.
Further, two first pole terminals 20 are symmetrically arranged on the right side surface of the holder body 10 with an orthogonal plane P11 orthogonal to the center line L11 interposed therebetween, and 2 on the left side surface with the orthogonal plane P11 interposed therebetween. The two second pole terminals 30 are arranged symmetrically, the two first pole terminals 20 are connected to each other, and the two second pole terminals 30 are connected to each other. The two second electrode terminals 30 may be symmetrically arranged on the left side surface with an arbitrary orthogonal plane different from the orthogonal plane P11 interposed therebetween.

More specifically, the first pole terminal 20 is composed of the first pole convex terminal 21, the second pole terminal 30 is composed of the second pole concave terminal 31, and the convex shape of the first pole terminal 20 and the second pole terminal 30. These concave shapes are shapes that can be fitted to each other.
By press-molding one conductive plate (for example, a copper plate), a pair of first polar convex terminals 21 that are electrically connected to each other can be formed. Similarly, a pair of second pole-concave terminals 31 that are electrically connected to each other can be formed. In this case, each second pole-concave terminal 31 has a shape, size, and Formed at intervals.
Hereinafter, the pair of first pole terminals 20 or the first pole convex terminals 21 that are electrically connected to each other are referred to as “first pole terminal members 20U”, and the pair of second pole terminals 30 or the second pole concave terminals 31 that are electrically connected to each other. May be referred to as “second pole terminal member 30U”.

In the first pole terminal member 20U, the interval S11 between the two first pole convex terminals 21 arranged adjacent to each other in the direction of the center line L11 is ½ or more of the length M11 of the holder body 10 in the direction of the center line L11. . Similarly, in the second pole terminal member 30U, the distance S11 between the two second pole concave terminals 31 arranged adjacent to each other in the direction of the center line L11 is also 1 of the length M11 of the holder body 10 in the direction of the center line L11. / 2 or more. Here, the interval between the two first pole-convex terminals 21 and the interval between the two second pole-concave terminals 31 are equal as described in the previous section, and the same applies to each embodiment described later. In the present embodiment, the case where the interval S11 is ½ of the length M11 is illustrated.
The first terminal member 20U having the above structure, so as to protrude to the outside is inserted from inside the pair of first Gokutotsu terminal 21 to a pair of holes 10a ₃ of the container body 10a, a right side wall inner surface of the container body 10a For example, it is fixed by adhesion.
On the other hand, the second pole terminal member 30U having the above-described configuration is configured such that the convex portions on the back surface side of the pair of second pole concave terminals 31 are inserted from the outside into the pair of hole portions 10a ₄ of the container body 10a and protrude to the inside. The outer surface of the left side wall of the container body 10a is fixed by, for example, adhesion.
In addition, in this embodiment, although the case where the convex shape of the 1st pole terminal 20 and the concave shape of the 2nd pole terminal 30 are a cube shape is illustrated, it is a shape which can fit a convex shape and a concave shape mutually. For example, a cylindrical shape or other shapes may be used. As described above, the shape and arrangement of the convex terminals and the concave terminals are not limited to those shown in FIG. This is the same in each embodiment described later.

The first connection member 40 is a conductive plate formed by bending a conductive plate (for example, a copper plate), and includes a first contact portion 41 that is in contact with the first electrode terminal member 20U, and the upper and lower unit cells E. There are two second contact portions 42 that come into contact with the one pole e1, and are fixed to the inner surface of the container body 10a by, for example, adhesion.
The second connection member 50 is in contact with the conductive plate 51 formed by bending a conductive plate (for example, a copper plate) so as to be in contact with the second electrode terminal member 30U, and the second electrode e2 of the upper and lower unit cells E. It consists of two metal springs 52. The conductive plate 51 is fixed to the inner surface of the container body 10a by, for example, adhesion. Each metal spring 52 is fixed to a flat portion of the conductive plate 51 by, for example, soldering.

In the battery holder H11 thus configured, between the pair of vertical walls 10a ₁ in the container body 10a, a first pole e1 is a two unit cells E as directed towards the first connecting member 40 The upper and lower stages are set in series, and the lid 10b is attached to the opening of the container body 10a.
Thereby, the four unit cells E in the battery holder H11 are moved in the vertical and horizontal directions by the bottom wall of the container body 10a, the pair of vertical walls 10a ₁ and the lid body 10b, and the first and second connecting members 40, Since the movement in the front-rear direction is regulated by 50, it is possible to prevent rattling in the battery holder H11 and jumping out from the battery holder H11.
In the battery pack Q11, the pair of first polar convex terminals 21 is a positive electrode, the pair of second polar concave terminals 31 is a negative electrode, and the voltage output is 2 between the first connecting member 40 and the second connecting member 50. A total of four unit cells E in which two unit cells E in series are electrically connected in parallel (hereinafter sometimes referred to as “two units × two units of cells” or “two units × two units of cells”). Obtained from.

FIG. 3 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined with the battery holder of Embodiment 1-1A, and FIG. 4 is a conceptual diagram showing a circuit of the assembled battery in FIG. is there. Although FIG. 3 illustrates the case of an assembled battery in which three battery packs Q11 are combined in series, the number of battery packs Q11 may be two or four or more.
In this case, by fitting the pair of first polar convex terminals 21 of one battery pack Q11 into the pair of second polar concave terminals 31 of another adjacent battery pack Q11, two series / two parallel cells are obtained. An assembled battery G11 is formed by combining three battery packs Q11 in series. The battery packs Q11 adjacent to each other in the X direction (connection direction) are not only electrically connected but physically connected by fitting the first polar convex terminal 21 and the second polar concave terminal 31 together. Has been.

The voltage of one battery pack Q11 is equal to twice the voltage of one cell E. Therefore, the voltage of the assembled battery G11 formed by connecting the three battery packs Q11 in series is equal to six times the voltage of the single cell E.
In the present embodiment, in the case of a connection configuration in which a plurality of battery packs Q11 are electrically connected in series, the assembled battery G11 having a voltage value obtained by multiplying the voltage of one battery pack Q11 by the number of battery packs Q11. Can be obtained. The internal structure of the battery holder H11 can be changed in design according to the change in the type and number of unit cells E accommodated in the battery holder H11, and the voltage and capacity of the battery pack Q11 can be changed. This is the same in each embodiment described later.

  When taking out electric power from this assembled battery G11, at least one of the two first polar convex terminals 21 (positive electrode) located at one end in the X direction and two second polar concaves located at the other end in the X direction. At least one of the terminals 31 (negative electrode) is electrically connected to an external circuit. For example, a concave conductive member and a convex conductive member are electrically connected to the tips of a positive lead wire and a negative lead wire for introducing power into an external circuit, and the concave conductive member is connected to the first polar convex terminal 21. The convex conductive member is fitted into the second polar concave terminal 31. In addition, when taking out electric power from one of the two first polar convex terminals 21 and one of the two second polar concave terminals 31, the remaining first polar convex terminal 21 and the second polar concave terminal 31. As a fixing terminal for fitting another concave and convex insulating member for fixing the assembled battery G11 itself, the concave insulating member and the convex insulating member may be fitted to the outer cover so as not to be exposed to the outside. May be used. This is the same in each embodiment described later.

FIG. 5 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series and in parallel with the battery holder of Embodiment 1-1A, and FIG. 6 is a concept showing a circuit of the assembled battery in FIG. FIG. In addition, in FIG. 5, although the case of the assembled battery which combined four battery packs Q11 in series and in parallel is illustrated, the number of battery packs Q11 may be other than four.
In this case, two battery packs Q11a and Q11b having the same polarity in the same direction are arranged in the longitudinal direction, and the third battery pack Q11c of the third battery pack Q11c is placed on the two first polar convex terminals 21 adjacent to the battery packs Q11a and Q11b. The pair of second electrode concave terminals 31 is fitted, and the remaining first polar convex terminal 21 of one of the two battery packs Q11a and Q11b (here, battery pack Q11b) is connected to the fourth battery pack Q11d. By fitting one second pole-concave terminal 31, an assembled battery G12 having a connection configuration in which the four battery packs Q11a to Q11d are two-series × two-parallel and planarly combined in the front-rear and left-right directions is configured.
When a plurality of battery packs Q11 are combined as described above, the two first polar convex terminals 21 and the two second polar concave terminals 31 are arranged adjacent to each other in the direction of the center line L11 of each battery pack Q11. Since the interval S11 is ½ or more of the length M11 of the holder body 10, there is a problem that the third battery pack Q11c cannot be combined with the two battery packs Q11a and Q11b, or the third battery. There is no problem that the pack Q11c interferes with the fourth battery pack Q11d and the fourth battery pack Q11d cannot be combined.

When taking out the electric power from this assembled battery G12, at least one first polar terminal 21 from the battery pack Q11c and battery pack Q11d located at one end in the X direction and the battery pack located at the other end in the X direction At least one second electrode concave terminal 31 from Q11a and battery pack Q11b is electrically connected to an external circuit. For example, a concave conductive member is electrically connected to each tip of the positive lead wire that introduces electric power to the external circuit, and a convex conductor is connected to each tip branched to the two negative lead wires. The members are electrically connected, the two concave conductive members are fitted into the two first polar convex terminals 21, and the two convex conductive members are fitted into the two second polar concave terminals 31. The remaining first polar convex terminal 21 and second polar concave terminal 31 of the assembled battery G12 that was not used for power extraction may be covered with a concave insulating member and a convex insulating member, or the assembled battery G12. It may be used as a fixing terminal into which another concave and convex insulating member for fixing itself is fitted.
Since this assembled battery G12 is a combination of four battery packs Q11 in 2 series × 2 parallel, the voltage is equal to four times the voltage of the cell E.

The battery pack Q11 of the present embodiment can be used in a configuration other than the connection configuration shown in FIGS.
For example, although not shown in the drawing, one second polar concave terminal of the second battery pack is fitted into one first polar convex terminal of the first battery pack. At this time, the second battery pack is combined with the first battery pack in an L shape. If this combination is repeated, a plurality of battery packs can be spirally connected in series. In this case, since there is only one connection point between adjacent battery packs, for example, a core material is arranged at the center of the spiral, and the battery pack at a predetermined position is tied to the core material with a string or a belt and fixed. Thus, electrical and physical connections between adjacent battery packs may be reinforced. For example, when this assembled battery is used as a power source for an electric vehicle, it is advantageous if the structural material of the electric vehicle can be used as a core material.
Although not shown, one of the second and third battery packs has a pair of first pole-convex terminals of the first battery pack and is L-shaped on the same side with respect to the center line L11. The second polar concave terminal is fitted, and the pair of first polar convex terminals of the fourth battery pack are fitted into the other two second polar concave terminals of the second and third battery packs. If these assembled batteries are stacked alternately, two parallel battery packs can be connected in series in a tower shape.
Such a connection form increases the degree of freedom in the connection direction and enables a more complicated connection form in which series and parallel are combined, but the battery pack Q11 has a shape and terminal arrangement that can be combined in an L shape. Limited to.

7A to 7D are a plan sectional view, a left side view, a front view, and a right side view showing a modification of Embodiment 1-1A of the battery holder of the present invention. In FIG. 7, the same elements as those in FIG. 2 are denoted by the same reference numerals.
In the battery holder H12, the first electrode terminal member 20U and the second electrode terminal member 30U are the same. The size and internal structure of the holder body 110 are different from the battery holder H11 of FIG.
Hereinafter, the battery holder H12 will be described mainly with respect to differences from the battery holder H11 of FIG.

The holder main body 110 has a rectangular parallelepiped shape that can accommodate eight unit cells E in 2 series × 4 parallel. A center line L12 of the holder body 110 is a line passing through the centers of both end faces in the short direction. In addition, this holder main body 110 is also comprised from the container main body and cover body which were formed with the insulating resin material.
The first electrode terminal member 20U and the second electrode terminal member 30U are arranged at the center positions of the longitudinal end surfaces of the holder body 110. In FIG. 7, reference numeral P12 represents an orthogonal plane with respect to the center line L12. Also in this case, in the first and second pole terminal members 20U and 30U, the distance S12 between the two first pole convex terminals 21 arranged adjacent to each other in the direction of the center line L12 and the distance between the two second pole concave terminals 31. S12 is ½ or more of the length M12 of the holder body 10 in the direction of the center line L12. Specifically, the case where the interval S12 is ½ of the length M12 is illustrated.

The first connection member 140 is made of a square conductive plate, and is provided in the holder body 110 in contact with the first electrode terminal member 20U.
The 2nd connection member 150 consists of a square electroconductive plate which has a convex part in four places of one surface, and is provided in the holder main body 110 in contact with the 2nd pole terminal member 30U.
In the two series × 4 parallel cells E, the four first poles (positive electrode) e1 are in contact with the first connection member 140, and the four second poles (negative electrode) e2 are the four protrusions of the second connection member 150. So as to come into contact with the battery holder H12. In addition, a rib 110 a (not shown) that supports the second connection member 150 is formed on the inner surface of the holder body 110 so that the second connection member 150 is not bent by the weight of the unit cell E.

In the battery holder H12, the first and second electrode terminal members 20U and 30U are arranged in the series connection direction of the single cells E. Can be held. Therefore, the internal structure of the holder body 110 can be simplified, and the first and second connection members 140 and 150 can be simplified.
The battery pack Q12 in which the eight unit cells E are accommodated in the holder body 110 can obtain the same voltage although the number of the unit cells E is different from the battery pack Q11 shown in FIG. Then, similarly to the battery pack Q11, a plurality of battery packs Q12 can be connected in series (see FIG. 3) or connected in series and in parallel (see FIG. 5).

  In Embodiment 1-1A and its modifications (FIGS. 1 to 7), the conductive connection portion that connects the pair of second pole concave terminals in the second pole terminal member 30U is exposed to the outside of the holder body. In order to suppress the possibility of an external short circuit, the entire second pole terminal member 30U is accommodated in the holder body, and only the second pole concave terminal is exposed to the outside. It is preferable to coat the conductive connecting portion exposed to the outside with an insulating member such as an insulating tape. In addition, the type, number, arrangement, and shape of the connecting member for electrically connecting terminals of the same polarity, including the shape of the battery stored in the holder body, are not limited to those illustrated in FIGS. It is preferable to change the design to a simple structure with as few parts as possible. About these points, each below-mentioned embodiment is also the same.

(Embodiment 1-1B)
8A to 8D are a plan view, a left side view, a front view, and a right side view showing Embodiment 1-1B of the battery holder of the present invention.
In the battery holder of the present invention, the first electrode terminal may be a first electrode surface terminal, and the second electrode terminal may be a second electrode surface terminal. In addition, in the case of these battery holders having planar terminals, there is a connecting portion for connecting one holder main body and another holder main body when the assembled battery is produced by combining the holder main bodies. (Embodiment 1-1B, and Embodiments 1-2B, 2-1B, 2-2B, 3-1B, 3-2B described later).
The battery of the embodiment 1-1A (FIG. 2) is that the battery holder H13 of the embodiment 1-1B is mainly provided with a shape of the first electrode terminal and the second electrode terminal and a connecting member on the holder body. It is different from the holder H11.
Hereinafter, with respect to the battery holder H13, differences from the battery holder H11 of Embodiment 1-1A will be mainly described.

The holder body 10B of the battery holder H13 includes a container body and a lid that are substantially the same as the battery holder H11 of Embodiment 1-1A. A first polar surface terminal 120 as a polar terminal and a second polar surface terminal 130 as a second polar terminal are provided.
The first polar surface terminal 120 is composed of one conductive plate having bent portions 120a on four sides of a rectangle. The first polar surface terminal 120 is attached to the holder main body 10B by inserting and bending the respective bent portions 120a from the outside into slits formed in the wall portion of the holder main body 10B. The second polar surface terminal 130 is made of the same member as the first polar surface terminal 120 and is attached to the holder body 10 </ b> B in the same manner as the first polar surface terminal 120.
In the holder main body 10B, each bent portion 120a of the first polar surface terminal 120 is electrically connected to a first connection member (not shown), and each bent portion 130a of the second polar surface terminal 130 is connected. Is electrically connected to a second connecting member (not shown).

Further, in the holder main body 10B, a connecting portion is provided on the surface on which the first polar surface terminal 120 is disposed and on the surface on which the second polar surface terminal 130 is disposed.
Specifically, four convex portions 10Ba ₁ as connecting portions are provided on the surface of the holder body 10B on which the first polar surface terminal 120 is disposed, and are connected to the surface on which the second polar surface terminal 130 is disposed. Four concave portions 10Ba ₂ are provided as portions, and the convex portions 10Ba ₁ and the concave portions 10Ba ₂ are formed in sizes and shapes that can be fitted.
As shown in FIG. 8 (B), two convex portions 10Ba ₁ are arranged in the vicinity of the two long sides on the surface, and as shown in FIG. 8 (D), the concave portion 10Ba _{2 is} arranged in the vicinity of the two long sides on the surface. Are arranged two by two. In the case of the present embodiment, as shown in FIG. 8A, in plan view, the convex portion 10Ba ₁ and the concave portion 10Ba ₂ are symmetrical with respect to an orthogonal plane P13 that bisects the length M11 of the holder body 10B. Are arranged. Further, the two pairs of protrusions 10Ba ₁ together spacing S13 in adjacent to the center line L13 direction of the holder main body 10B (longitudinal direction), two pairs of recesses 10Ba ₂ interval S13 in between is the same and the holder body length It is 1/2 or more of the length M11. Further, the convex portion 10Ba ₁ distance between J13 2 pairs of adjacent height direction of the holder main body 10B, 2 sets of recesses 10Ba ₂ distance between J13 are identical.

The length F13 in the longitudinal direction of the first and second polar surface terminals 120, 130 is not less than the interval S13 and not more than the length M11 of the holder body. In the case of this embodiment, the first and second polar surface terminals. The centers of 120 and 130 in the length direction are located on the orthogonal plane P13. In addition, the width | variety of the _1st and _2nd polar surface terminal 120,130 is a dimension which does not contact each convex part 10Ba1 and each recessed part 10Ba2.
In the battery holder H13 configured as described above, it is difficult to visually distinguish the first and second polar surface terminals 120 and 130, but the first polar surface terminal is more disposed when the convex portion 10Ba ₁ is disposed. (Positive electrode) 120, and the direction where the recess 10Ba ₂ is arranged can be identified by being the _second polar surface terminal (negative electrode) 130. The internal structure of the battery holder H13 can be freely designed according to the type and number of cells accommodated in the battery holder H13, and the shape, size, arrangement, etc. of the connecting member and the planar terminal are also the same. Not limited to the embodiment, it can be changed as appropriate. This is the same for each embodiment including a planar terminal described later.

FIG. 9 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series with the battery holder according to Embodiment 1-1B.
As shown in FIG. 9, the battery pack Q13 in which 2 series × 2 parallel cells are accommodated in the battery holder H13 has four protrusions 10Ba _{1 of} one battery pack Q13 and four of the other adjacent battery packs Q13. By fitting into the _two recesses 10Ba ₂ , the first polar surface terminal 120 of one battery pack Q13 and the second polar surface terminal 130 of another battery pack Q13 adjacent to each other are in full contact and electrically. Connected. At the same time, the battery packs Q13 are physically connected to each other by connecting the protrusions 10Ba ₁ and the recesses 10Ba ₂ .
The circuit of the assembled battery G13 obtained by combining the three battery packs Q13 in this manner is substantially the same as the circuit of the assembled battery G11 of Embodiment 1-1A shown in FIG.

FIG. 10 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series and in parallel with the battery holder according to Embodiment 1-1B.
In this case, two battery packs Q13a having uniform polarity in the same direction, arranged Q13b longitudinally, the battery pack Q13a, Q13b of the adjacent four of the protrusions 10Ba ₁ to 4 of the 3 th battery pack Q13c fitting recesses 10Ba _2, 2 pieces side by side battery pack Q13a, one of Q13b (here, the battery pack Q13b) fitted to the rest of the protrusion 10Ba ₁ to 4 th two recesses 10Ba ₂ of the battery pack Q13d of Include. As a result, the second polar surface terminals 130 of the third battery pack Q13c come into contact with the first polar surface terminals 120 of the two battery packs Q13a and Q13b, and the fourth battery pack Q13d The second polar surface terminal 130 is in contact with the first polar surface terminal 120 of the battery pack Q13b, and the four battery packs Q13a to Q13d are connected in a series of 2 series × 2 parallel in the front / rear / right / left direction. The assembled battery G14 of the form is configured.
The circuit of the assembled battery G14 in which the four battery packs Q13 are combined in this manner is substantially the same as the circuit of the assembled battery G12 of Embodiment 1-1A shown in FIG.

<< Embodiment 1-2 series >>
In the battery holder of Embodiment 1-2 series, one first electrode terminal and one second electrode terminal are disposed on one surface parallel to the center line, and the first electrode terminal is disposed on the other surface parallel to the one surface. One second pole terminal is arranged one by one, the first pole terminal and the second pole terminal on the same plane are symmetrical with respect to any orthogonal plane perpendicular to the center line, and the first pole terminals and the first pole terminals The two pole terminals are arranged on the same side in the center line direction, the two first pole terminals are connected to each other, and the two second pole terminals are connected to each other. Here, in the present invention (all holder forms), “arbitrary orthogonal planes” are the same as in the case of the embodiment 1-1 series, even if the orthogonal plane with respect to one surface is the same as the orthogonal plane with respect to the other surface. It means that either can be different.
In this case, the first polar convex terminal and the first polar concave terminal, the second polar convex terminal and the second polar concave terminal, and the first polar convex terminal and the second polar concave terminal have a central angle of 180 with respect to the center line. It is preferable that the convex shape of the first pole and the second pole convex terminal and the concave shape of the first pole and the second pole concave terminal are such that any convex terminal and concave terminal are mutually A shape that can be fitted is preferable.
Specifically, a battery holder like Embodiment 1-2A or 1-2B mentioned later can be comprised.

(Embodiment 1-2A)
11A to 11D are a plan view, a left side view, a front view, and a right side view showing Embodiment 1-2A of the battery holder of the present invention. 12A to 12C are cross-sectional views taken along the line AA in FIG. 11C, the cross-sectional view taken along the line BB in FIG. 11D, and the cross-sectional view taken along the line CC in FIG. It is. 11 and 12, the same reference numerals are given to the same elements as those in FIGS. 1 and 2.
In the battery holder of the present invention, the first electrode terminal and the second electrode terminal are composed of a convex terminal and a concave terminal, and the convex shape and the concave shape are shapes that can be fitted to each other, and are aligned in the center line direction. The distance between each two terminals provided on the surface may be ½ or more of the length of the holder body in the center line direction (this embodiment 1-2A and each embodiment 2 described later). -2A, 3-2A).
Although the external appearance of the battery holder H21 of the embodiment 1-2A and the battery holder H11 of the embodiment 1-1A is substantially the same, their internal structures are completely different. Hereinafter, the points of the embodiment 1-2A different from the embodiment 1-1A will be mainly described.

  In the battery holder H21 of Embodiment 1-2A, one first pole terminal 220 and one second pole terminal 230 are arranged on the right side parallel to the center line L21, and the first on the left side parallel to the right side. One pole terminal 220 and one second pole terminal 230 are arranged. Further, the first pole terminal 220 and the second pole terminal 230 are symmetrical with respect to the orthogonal plane P21 orthogonal to the center line L21, and the first pole terminals and the second pole terminals are on the same side in the center line direction. It is arrange | positioned so that it may exist in (position which opposes). The two first electrode terminals 220 are electrically connected to each other, and the two second electrode terminals 230 are electrically connected to each other.

  In this case, the first pole terminal 220 on the right side surface is composed of the first pole convex terminal 221, the first pole terminal 220 on the left side surface is composed of the first pole concave terminal 222, and the second pole terminal 230 on the right side surface. Comprises a second polar terminal 231 and the second polar terminal 230 on the left side comprises a second polar terminal 232. Further, the convex shape of the first polar convex terminal 221 and the second polar convex terminal 231 and the concave shape of the first polar concave terminal 222 and the second polar convex terminal 232 can be fitted to each other in any combination. It is. Further, the relative position between the first polar convex terminal 221 and the first polar concave terminal 222, the relative position between the second polar convex terminal 231 and the second polar concave terminal 232, and the first polar convex terminal 231 and the second polar concave. The relative position with respect to the terminal 232 is arranged at a relative position where the center angle θ is 180 ° with respect to the center line L21. In addition, the distance S21 between the first polar convex terminal 221 and the second polar convex terminal 231 and the spacing S21 between the first polar concave terminal 222 and the second polar concave terminal 232 arranged adjacent to each other in the direction of the center line L21 It is 1/2 or more of the length M21 in the direction of the center line L21 (1/2 in the embodiment 1-2A).

More specifically, the holder main body 10 of the battery holder H21 includes a rectangular parallelepiped container main body 210a having an opening that opens upward, and a rectangular plate lid 210b that closes the opening of the container main body 210a in an openable and closable manner. These are formed of an insulating resin material.
A vertical wall 210a ₁ is formed on the inner bottom surface of the container main body 210a to hold the four unit cells E in a row in the longitudinal direction of the container main body 210a, and the container main body 210a. A pair of protrusions (not shown) (see FIG. 2B) are formed on the upper inner surfaces of the left and right side walls. The right and left side walls of the container body 210a are formed with four holes through which the first polar convex terminal 221, the second polar convex terminal 231, the first polar concave terminal 222, and the second polar concave terminal 232 are inserted. Has been.
The lid 210b has a pair of engaging projections (not shown) (see FIG. 2B) that engage with the pair of protrusions of the container body 210a on the inner surfaces near the pair of long sides.

The first polar convex terminal 221 and the second polar convex terminal 231 have a shape in which the pair of first polar convex terminals 21 of the first polar terminal member 20U (see FIG. 2A) of Embodiment 1-1A is separated. It is. On the other hand, the 1st polar-concave terminal 222 and the 2nd polar-concave terminal 232 are the thing of the shape which isolate | separated the pair of 2nd polar-concave terminal 31 of the 2nd polar terminal member 30U of Embodiment 1-1A.
The first polar convex terminal 221 and the first polar concave terminal 222 are electrically connected by the first connecting member 240, and the second polar convex terminal 231 and the second polar concave terminal 232 are electrically connected by the second connecting member 250. It is connected to the.

The first connection member 240 is fixed to the inner surface of the container body 210a, contacts the first polar convex terminal 221 and the first polar concave terminal 222, and electrically connects the first member 240a and the lid 210b. The second member 240b is fixed to the inner surface and is in contact with and electrically connected to the first electrode concave terminal 222 and the first electrode e1 of the four unit cells E, and these are formed by a conductive plate. ing.
The second connecting member 250 is a conductive plate fixed to the inner side surface of the container body 210a, and is connected to the second pole convex terminal 231 and the second pole e2 and the second pole concave terminal 232 of the four cells E. It is formed in a shape that contacts and electrically connects them.

In this case, the second member 240b of the first connecting member 240 becomes the first member 240a and the first pole of each unit cell E by removing the lid 210b in order to put the four unit cells E into the container body 210a. Although it does not come into contact with e1, it comes into contact again when the lid 210b is attached to the container main body 210a again.
Further, each cell E in the battery holder H21 has wall and the vertical wall 210a ₁ by front, rear, left and right movement of the container body 10a, to be restricted to vertical movement by the first and second connecting members 240 and 250 It is possible to prevent rattling in the battery holder H21 and jumping out of the battery holder H21.

In this battery pack Q21, the first polar convex terminal 221 and the first polar concave terminal 222 are positive electrodes, the second polar convex terminal 231 and the second polar concave terminal 232 are negative electrodes, and the voltage output is electrically connected in parallel. Obtained from the four unit cells E (hereinafter sometimes referred to as “four parallel cells”).
In the battery holder H21 configured as described above, the adjacent first polar convex terminal (positive electrode) 221 and second polar convex terminal (negative electrode) 231 and adjacent first polar convex terminal (positive electrode) 222 and second polar concave. The terminal (negative electrode) 232 is difficult to identify in appearance. Therefore, in this case, for example, it is preferable to attach a mark (polarity, mark, color, etc.) for identifying them in the vicinity of each terminal on the outer surface of the holder body 210.

13 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in parallel with the battery holder of Embodiment 1-2A, and FIG. 14 is a conceptual diagram showing a circuit of the assembled battery in FIG. is there. Although FIG. 13 illustrates the case of an assembled battery in which three battery packs Q21 are combined in parallel, the number of battery packs Q21 may be two or four or more.
In this case, by fitting the first polar convex terminal 221 and the second polar convex terminal 231 of one battery pack Q21 into the first polar concave terminal 222 and the second polar concave terminal 232 of another adjacent battery pack Q21. An assembled battery G21 is configured by combining three battery packs Q21 each having four parallel cells. Then, the battery packs Q21 adjacent to each other in the X direction are fitted to each other by fitting the first polar convex terminal 221 and the first polar concave terminal 222 and fitting the second polar convex terminal 231 and the second polar concave terminal 232. Not only are they electrically connected, they are physically linked.
The voltage of one battery pack Q21 is equal to the voltage of one single cell E. Therefore, the voltage of the assembled battery G21 formed by connecting the three battery packs Q21 in parallel is equal to the voltage of the single cell E. The internal structure of the battery holder H21 can be changed in design according to the change in the type and number of unit cells E accommodated in the battery holder H21, and the voltage and capacity of the battery pack Q21 can be changed.

  When taking out electric power from this assembled battery G21, at least one of the first polar convex terminal 221 and the first polar concave terminal 222 as positive electrodes located at both ends in the X direction and the negative electrodes located at both ends in the X direction At least one of the second polar convex terminal 231 and the second polar concave terminal 232 is electrically connected to an external circuit. For example, a concave conductive member is electrically connected to each end of a positive lead wire and a negative lead wire for introducing electric power to an external circuit, and each concave conductive member is connected to the first polar convex terminal 221 and the second polar convex. Fit into the terminal 231. In this case, the first electrode concave terminal 222 and the second electrode concave terminal 232 may be covered with a convex insulating member so as not to be exposed to the outside, or another convex shape for fixing the assembled battery G21 itself. It may be used as a fixing terminal into which the insulating member is fitted.

Here, when the first polar convex terminal 221 and the second polar convex terminal 231 of one battery pack Q21 are fitted into the second polar concave terminal 232 and the first polar concave terminal 222 of another adjacent battery pack Q21, When a plurality of battery packs Q21 are combined in parallel, a closed circuit (type 1) is formed between the battery packs, and there is a possibility that each accommodated single battery generates heat and may burst and ignite. Attention is necessary (see FIG. 55B).
Therefore, it is preferable that a warning mark for calling attention not to combine the battery pack Q21 in the direction in which such a closed circuit (type 1) is formed is formed on the outer surface of the holder body H21. For example, as shown in FIG. 55 (B), a color line CL as a warning mark is attached to a position near the first pole convex terminal 221 and a position near the second pole concave terminal 232 on the outer surface of the holder body H21. When two battery packs Q21 are combined so as to form a closed circuit (type 1), the color line CL of one battery pack Q21 and the color line CL of the other battery pack Q21 are aligned in a horizontal line. . By arranging the two color lines CL in a horizontal line, the user can recognize that the assembled battery forms a closed circuit (type 1). Note that the alert mark may be a figure, a symbol or the like in addition to the color line.
Such a warning mark can be applied not only to the embodiment 1-2A but also to the embodiments 2-2A and 3-2A described later, and further, the embodiment 1- 1 described later in which the terminal shape is planar. 2B, Embodiments 2-2B and 3-2B are also applicable.

15 is a plan view showing a battery pack in which a plurality of battery packs each having a single battery are combined in series with the battery holder of Embodiment 1-2A, and FIG. 16 is a conceptual diagram showing a circuit of the battery pack of FIG. is there. FIG. 15 illustrates an example of an assembled battery in which four battery packs Q21 are combined in series, but the number of battery packs Q21 may be any number other than four.
In this case, two battery packs Q21a and Q21b are arranged in the longitudinal direction so that the terminal shapes (concave and convex shapes) are aligned in the same direction and the polarities are alternated, and the adjacent second polar projections of the battery packs Q21a and Q21b are arranged. The first polar concave terminal 222 and the second polar concave terminal 232 of the third battery pack Q21c are fitted into the terminal 231 and the first polar convex terminal 221, and here, one of the two battery packs Q21a and Q21b arranged side by side. By fitting the first polar concave terminal 222 of the fourth battery pack Q21d into the remaining second polar convex terminal 231 of the battery pack Q21b, four battery packs Q21a to Q21d are arranged in series in the front-rear and left-right directions. The assembled battery G22 having a connection form combined in a plane is configured.

When the electric power is taken out from the assembled battery G22, at least one of the unconnected second polar convex terminal 231 and the second polar concave terminal 232 in the battery pack Q21d located at one end in the direction perpendicular to the X direction , Electrically connect at least one of the unconnected first polar convex terminal 221 and the first polar concave terminal 222 in the battery pack Q21a located at the other end in the direction perpendicular to the X direction to an external circuit. . For example, a concave conductive member is electrically connected to the tip of a negative electrode lead wire for introducing power into an external circuit, and a convex conductive member is electrically connected to the tip of a positive electrode lead wire. Is fitted into the second polar convex terminal 231, and the convex conductive member is fitted into the first polar concave terminal 222. The remaining terminals of the assembled battery G22 that are not used for power extraction may be covered with a concave insulating member and a convex insulating member, or another concave and convex shape for fixing the assembled battery G22 itself. It may be used as a fixing terminal into which the insulating member is fitted.
Since this assembled battery G22 is a combination of four battery packs Q11 in series, the voltage is equal to four times the voltage of the cell E.

In addition, even when one of these four battery packs Q21 configures an assembled battery by reversing the positions of the first and second polar convex terminals 221 and 231 (with the polarities reversed), In the connection method, power cannot be sufficiently extracted from the assembled battery, so care must be taken when combining a plurality of battery packs Q21 in series.
In addition, in the shape and terminal arrangement that can be combined in an L shape, the second polar concave terminal of the second battery pack is connected to the first polar convex terminal of the first battery pack only for the battery pack Q21. The second pole convex terminal of the third battery pack is fitted into the first pole concave terminal of the second battery pack so that the three battery packs are U-shaped, respectively. When the 1 pole and 2 pole concave terminals are respectively fitted into the second pole convex terminal of the first battery pack and the first pole convex terminal of the third battery pack, an annular assembled battery is formed, and the battery pack Care must be taken because a closed circuit is formed between them, which can rupture and ignite. Note that the closed circuit in this case is a closed circuit (type 2) different from the closed circuit (type 1) formed by the battery packs Q21 shown in FIG.

17A to 17D are a plan sectional view, a left side view, a front view, and a right side view showing a modified example of the embodiment 1-2A of the battery holder of the present invention.
In this battery holder H22, the first polar convex terminal 221, the first polar concave terminal 222, the second polar convex terminal 231 and the second polar concave terminal 232 are the same, but eight unit cells E (in this case, a single unit) 1 type) is accommodated in 2 series × 4 parallel, the size and internal structure of the holder main body 310 are different from the battery holder H21 of FIG.
Hereinafter, the battery holder H22 will be described mainly with respect to differences from the battery holder H21 of FIG.

The holder main body 310 is a rectangular parallelepiped having a size capable of accommodating eight unit cells E having the first pole (positive electrode) e1 and the second pole (negative electrode) e2 in the direction of the center line L22 in two series × 4 parallel. is there.
The first connecting member 340 is made of a conductive plate fixed to the inner wall of the rear wall of the container body 310, and both ends of the first connecting member 340 are bent along the right and left side walls, and the first polar convex terminal 221 and the first polar concave terminal 222 They are in contact and electrically connected.
The first connecting member 340 is made of a conductive plate fixed to the inner wall of the rear wall of the container body 310, and both ends of the first connecting member 340 are bent along the right and left side walls, and the first polar convex terminal 221 and the first polar concave terminal 222 They are in contact and electrically connected.
The second connection member 350 is formed of a conductive plate having four convex portions fixed to the inner surface of the front wall of the container body 310, and both ends thereof are bent along the right and left side walls to be connected to the second polar convex terminal 231 and the second polar convex terminal 231. They are in contact with and electrically connected to the two-pole concave terminal 232.

The two series × 4 parallel cells E have four first poles e1 in contact with the first connection member 340, and four second poles e2 in contact with the four convex portions of the second connection member 350. Housed in battery holder H22. Each unit cell E is held on the inner bottom surface of the holder body 310, and the first and second connection members 340 and 350 do not come into contact with terminals of the unit cell E other than both ends in the direction of the center line L22. A vertical wall is formed to separate the first and second connection members 340 and 350 according to the battery holder H22.
The battery pack Q22 in which the eight unit cells E are accommodated in the holder main body 310 has twice the number and voltage of the unit cells E compared to the battery pack Q21 shown in FIG. Similarly to the battery pack Q21, a plurality of battery packs Q22 can be connected in parallel (see FIG. 13) or in series (see FIG. 15).

  Although not shown, as another modification of the battery pack Q21 of Embodiment 1-2A, a battery pack having a positional relationship in which the unit cell E in FIG. be able to. In this case, the merit which can further simplify the shape of the 1st and 2nd connection members 340 and 350 is acquired.

(Embodiment 1-2B)
18A to 18D are a plan view, a left side view, a front view, and a right side view showing Embodiment 1-2B of the battery holder of the present invention. In FIG. 18, the same elements as those in FIG. 11 are denoted by the same reference numerals.
In the battery holder of the present invention, when the first electrode terminal is composed of the first electrode surface terminal and the second electrode terminal is composed of the second electrode surface terminal, and the holder bodies are combined, A reminder is made not to contact the terminal and the second polar surface terminal of the other holder body, and the second polar surface terminal of the one holder body and the first polar surface terminal of the other holder body at the same time. Therefore, a warning mark may be formed on the outer surface of the holder body (this embodiment 1-2B, and each of the embodiments 2-2B and 3-2B described later).
The battery holder H23 of the present embodiment 1-2B includes a first pole convex terminal 221, a first pole concave terminal 222, a second pole convex terminal 231 and a second pole in the battery holder H21 of the embodiment 1-2A (see FIG. 12). Embodiment 1 in which instead of the polar concave terminal 232, the first polar surface terminals 321 and 322 and the second polar surface terminals 331 and 332 are used, and the holder body 410 is provided with a connecting member. Different from the 2A battery holder H21.
Hereinafter, the difference between the battery holder H23 and the battery holder H21 of Embodiment 1-2A will be mainly described.

The holder main body 210B of the battery holder H23 includes a container main body and a lid that are substantially the same as the battery holder H21 of Embodiment 1-2A. The first main body 210B is parallel to the center line L23 on the two opposing surfaces of the container main body. First polar surface terminals 421 and 422 as pole terminals and second polar surface terminals 431 and 432 as second pole terminals are provided one by one.
The first polar surface terminals 421 and 422 and the second polar surface terminals 431 and 432 are made of individual rectangular conductive plates having bent portions (not shown) on the four sides, and are the first and second embodiments 1-1B shown in FIG. It is attached to the holder body 210B in the same manner as the first and second polar surface terminals 120 and 130.
In the holder body 210B, the bent portions of the first polar surface terminals 421 and 422 are electrically connected to the first connecting member (not shown), and the second polar surface terminals 431 and 432 are folded. The bent portion is electrically connected to a second connecting member (not shown).

Further, similarly to the embodiment 1-1B shown in FIG. 8, in the holder main body 210B, four convex portions 210Ba ₁ as the connecting portions are provided on the surface where the first and second polar surface terminals 421 and 431 are arranged. In addition, four concave portions 210Ba ₂ as connecting portions are provided on the surface on which the first and second polar surface terminals 422 and 432 are disposed.
Also in the present embodiment, as shown in FIG. 18A, in plan view, the convex portion 210Ba ₁ and the concave portion 210Ba ₂ are symmetrical with respect to the orthogonal plane P23 that bisects the length M21 of the holder main body 210B. Are arranged. Further, the center line L23 direction (longitudinal direction) adjacent to the two pairs of protrusions 210Ba ₁ between distance S23 in the holder body 210B, two pairs of recesses 210Ba ₂ interval S23 in between is the same and the holder body length It is 1/2 or more of the thickness M21 (specifically 1/2). Further, the convex portion 210Ba ₁ distance between J23 2 pairs of adjacent height direction of the holder main body 210B, 2 sets of recesses 210Ba ₂ distance between J23 are identical.
In the battery holder H23 thus configured, the adjacent first polar surface terminal (positive electrode) 421 and second polar surface terminal (negative electrode) 431, and the adjacent first polar surface terminal (positive electrode) 422 and the first The two-pole planar terminal (negative electrode) 432 is difficult to identify in appearance. Therefore, also in this case, for example, it is preferable to attach a mark for identifying them in the vicinity of each terminal on the outer surface of the holder main body 210B.

FIG. 19 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in parallel with the battery holder according to Embodiment 1-2B.
As shown in FIG. 19, the battery pack Q23 in which four parallel cells are accommodated in the battery holder H23 has four convex portions 210Ba1 of _one battery pack Q23 and four concave portions 210Ba of other adjacent battery packs Q23. ₂ , the first polar surface terminal 421 of one battery pack Q23 and the first polar surface terminal 422 of another battery pack Q23 adjacent to each other are in full contact and electrically connected. The second polar surface terminal 431 of the battery pack Q23 and the second polar surface terminal 432 of another adjacent battery pack Q23 are in full contact with each other and are electrically connected. At the same time, by the respective protrusions 210Ba ₁ and each recess 210Ba ₂ is connected, the battery pack Q23 each other are physically linked.
The circuit of the assembled battery G23 in which the three battery packs Q23 are combined in this manner is substantially the same as the circuit of the assembled battery G21 of Embodiment 1-2A shown in FIG.

FIG. 20 is a plan view showing an assembled battery in which a plurality of battery packs each having a single battery are combined in series with the battery holder of Embodiment 1-2B.
In this case, the protrusions 210Ba ₁ in the same direction, and arranged polarities are alternately as two battery packs Q23A, a Q23b in the longitudinal direction, and the second pole face shaped terminals 431 to which the battery pack Q23A, adjacent Q23b And the first polar surface terminal 421 are brought into contact with the first polar surface terminal 422 and the second polar surface terminal 432 of the third battery pack Q23c, and here, two of the battery packs Q23a and Q23b arranged side by side. By contacting the first polar surface terminal 422 of the fourth battery pack Q21d with the remaining second polar surface terminal 431 of one battery pack Q23b, the four battery packs Q23a to Q23d are connected in four series, The assembled battery G24 having a connection configuration that is planarly combined in the front-rear and left-right directions is configured.
The circuit of the assembled battery G24 in which the four battery packs Q23 are combined in this manner is substantially the same as the circuit of the assembled battery G22 of Embodiment 1-2A shown in FIG.
In addition, when assembling the assembled battery G23 or the assembled battery G24 using the battery pack Q23, it is necessary to be careful so that the cell can be prevented from bursting and firing and the power can be fully utilized, as in the case of the embodiment 1-2A. There is.

<< Embodiment 2-1 series >>
In the battery holder of Embodiment 2-1 series, the first electrode terminal is disposed on one surface parallel to the center line, and the second electrode terminal is disposed on the other surface orthogonal to the one surface.
In this case, it is preferable that the first pole terminal and the second pole terminal are arranged at a relative position with a center angle of 90 ° with respect to the center line.
Specifically, a battery holder like Embodiment 2-1A or 2-1B described later can be configured.

(Embodiment 2-1A)
FIGS. 21A to 21D are a plan view, a left side view, a front view, and a right side view showing Embodiment 2-1A of the battery holder of the present invention. FIGS. 22A to 22C are cross-sectional views taken along the line AA in FIG. 21A, the cross-sectional view taken along the line BB in FIG. 21B, and the cross-sectional view taken along the line CC in FIG. It is.
The battery holder H31 of Embodiment 2-1A has a first extreme configuration similar to the first electrode terminal member 20U and the second electrode terminal member 30U of the battery holder H11 of Embodiment 1-1A (see FIGS. 1 and 2). Although the child member 420U and the second electrode terminal member 430U are provided, their relative positions are different from those of the battery holder H11.
That is, in the holder main body 410 of the battery holder H31, the first electrode terminal member 420U is disposed on the upper surface parallel to the center line L31, and the second electrode terminal member 430U is disposed on the left surface perpendicular to the upper surface. . Specifically, the first pole terminal member 420U and the second pole terminal member 430U are disposed at a relative position where the center angle θ is 90 ° with respect to the center line L31.
Similar to the embodiment 1-1A, the two first polar convex terminals 421 are symmetrically arranged on the upper surface across the orthogonal plane P31 orthogonal to the center line L31, and the left side surface across the orthogonal plane P31. Two second polar concave terminals 431 are symmetrically arranged on the top, and the distance S31 between the pair of first polar convex terminals 421 and the distance S31 between the pair of second polar concave terminals 431 are equal to the length M31 of the holder body 410. 1/2 or more.

The holder main body 410 has a rectangular parallelepiped shape that can accommodate four unit cells E in an upright state, and the center line L31 of the holder main body 410 is a line that passes through the centers of both longitudinal end faces. . The holder body 410 is also composed of a container body 410a and a lid body 410b made of an insulating resin material.
The first connection member 440 is made of a flat conductive plate, and is disposed in and in contact with the holder body 410 along the first electrode terminal member 420U.
The second connection member 450 is formed of a conductive plate having convex portions that are in contact with the four unit cells E at four locations on one surface, and is disposed along and in contact with the second electrode terminal member 430U in the holder body 410. Has been.

In the four unit cells E, four first poles (positive electrodes) e1 are in contact with the first connection member 440, and four second poles (negative electrode) e2 are in contact with the four convex portions of the second connection member 450. Thus, it is accommodated in the battery holder H410. In addition, the container body 410a is formed in a length that allows the four unit cells E to be closely fitted in parallel so that each unit cell E is held and not wobbled, and in the vicinity of the second electrode terminal member 450 of the container body 410a. A vertical wall 410a ₁ is provided, and a protruding piece 410b ₁ is provided on the lid 410b. The vertical wall 410a ₁ also has a function of electrically separating the second connection member 450 so as not to contact the first electrode e1 of each unit cell E.

FIG. 23 (A) is a front view showing a battery pack in which a plurality of battery packs each having a single battery are combined in series with the battery holder of Embodiment 2-1A, and FIG. 23 (B) is a left side view. FIG. 24 is a conceptual diagram showing a circuit of the assembled battery in FIG. FIG. 23 illustrates the case of an assembled battery in which three battery packs Q31 are combined in series, but the number of battery packs Q31 may be two or four or more.
In this case, the battery pack having four parallel cells by fitting the pair of first polar convex terminals 421 of one battery pack Q31 into the pair of second polar concave terminals 431 of another adjacent battery pack Q31. An assembled battery G31 having a connection configuration in which three Q31s are combined in series and vertically and horizontally is configured.
In FIGS. 23A and 23B, the first polar terminal 421 is oriented in the order of top, right, top from the first battery pack Q31 located below to the third battery pack Q31. The case is illustrated and this can be repeated. Although not shown in the drawings, the direction of the first polar terminal 421 can be repeated in the order of up, right, down, and right from the first battery pack Q31 to the fourth battery pack Q31.
Although not shown, in the case of the embodiment 2-1A illustrated here, the first polar terminal 421 is oriented upward, left, down, from the first battery pack Q31 to the fourth battery pack Q31. When the first polar convex terminal 421 of the fourth battery pack Q31 is fitted into the second polar concave terminal 431 of the first battery pack Q31 in the right order, a closed circuit (type 3) is formed between the battery packs. Formed, with the potential to burst and ignite. Therefore, care must be taken when combining the battery pack Q31 having a shape and terminal arrangement capable of such connection, including the exemplified form.

The voltage of one battery pack Q31 is equal to the voltage of one single cell E. Therefore, the voltage of the assembled battery G31 formed by connecting the three battery packs Q31 in series is equal to three times the voltage of the single cell E. Similarly to Embodiment 1-1A, this embodiment can also obtain an assembled battery G31 having a voltage value obtained by multiplying the voltage of one battery pack Q31 by the number of battery packs Q31.
When taking out the electric power from the assembled battery G31, at least one of the two first polar convex terminals 421 (positive electrode) exposed to the outside and the two second polar concave terminals 431 (negative electrode) exposed to the outside Are electrically connected to an external circuit.

FIG. 25 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery in the battery holder of Embodiment 2-1A are combined in series and in parallel, not only in the planar direction but also in the height direction. 26 is a conceptual diagram showing a circuit of the assembled battery of FIG.
In this case, two battery packs Q31a, Q31b having the same polarity in the same direction are arranged in the longitudinal direction, and the third battery pack Q31c of the third battery pack Q31c is placed on the two first polar convex terminals 421 adjacent to the battery packs Q31a, Q31b. A pair of second polar concave terminals 431 are fitted, and the remaining first polar convex terminal 421 of one of the two battery packs Q31a and Q31b (here, battery pack Q31b) is connected to the fourth battery pack Q31d. One second pole-concave terminal 431 is fitted, and a pair of second pole-concaves of the fifth battery pack Q31e are inserted into two first pole-convex terminals 421 adjacent to the third and fourth battery packs Q31c and Q31d. The terminal 431 is fitted, and the sixth battery pack is inserted into the remaining first polar terminal 421 of one of the third and fourth battery packs Q31c and Q31d (here, the battery pack Q31c). By fitting the one of the second pole 凹端Ko 431 Q31f, assembled battery G32 is composed of a combination of six battery packs Q31a~Q31f in 2 parallel × 3 series. That is, the assembled battery G32 having a connection form in which a plurality of battery packs Q31 are combined in the front-rear, up-down, left-right directions is assembled.
Moreover, the voltage of this assembled battery G32 is equal to 3 times the voltage of the cell E.

When the plurality of battery packs Q31 are combined as described above, the two first polar convex terminals 421 and the two second polar concave terminals 431 are arranged adjacent to each other in the direction of the center line L31 of each battery pack Q31. Since the interval S31 is ½ or more of the length M31 of the holder main body 410, the third battery pack Q31c cannot be combined with the two battery packs Q31a and Q31b arranged side by side. There is no problem that the pack Q31c interferes with the fourth battery pack Q31d and the fourth battery pack Q31d cannot be combined.
When the electric power is taken out from the assembled battery G32, at least one first polar terminal 421 of the fifth battery pack Q31e and at least one first polar terminal 421 of the sixth battery pack Q31f are connected to the external circuit. The lead wire for positive electrode is electrically connected in parallel, and at least one second polar concave terminal 431 of the first battery pack Q31a and at least one second polar concave terminal 431 of the second battery pack Q31b are externally connected. Electrically connected in parallel to the negative lead wire of the circuit.

  Further, the connection form of the battery pack Q31 of the present embodiment is not limited to the connection forms shown in FIGS. For example, although not shown in the drawing, one second polar concave terminal of the second battery pack is fitted into one first polar convex terminal of the first battery pack. At this time, the second battery pack is combined with the first battery pack in an L shape. Then, in addition to combining two adjacent battery packs in an L shape, the first electrode terminal member and the second electrode terminal member of each battery pack are positioned at a relative central angle of 90 °. As a result, the degree of freedom in the connection direction can be increased, and a more complicated connection form combining series and parallel can be obtained. Note that such a connection form is limited to the battery pack Q31 having a shape and terminal arrangement that can be combined in an L shape.

27A to 27D are a plan sectional view, a left side view, a front sectional view, and a right side view showing a modification of the embodiment 2-1A of the battery holder of the present invention. In FIG. 27, elements similar to those in FIG. 22 are denoted by the same reference numerals.
In this battery holder H32, the first electrode terminal member 520U and the second electrode terminal member 530U have the same configuration, but accommodate eight unit cells E (in this case, single type 1) in 2 series × 4 parallel. Therefore, the size and internal structure of the holder body 510 are different from the battery holder H31 of FIG.
Hereinafter, the battery holder H32 will be described mainly with respect to differences from the battery holder H31 of FIG.

The holder main body 510 has a rectangular parallelepiped size that can accommodate eight unit cells E in 2 series × 4 parallel. The center line L32 of the holder main body 510 is a line that passes through the centers of both end faces in the short direction. In addition, this holder main body 510 is also comprised from the container main body and lid body which were formed with the insulating resin material.
The first electrode terminal member 520U is disposed at the center position in the longitudinal direction of the upper surface of the holder body 510. The second pole terminal member 530U is disposed on the left end surface of the holder body 510 in the longitudinal direction. In FIG. 27, symbol P32 represents an orthogonal plane with respect to the center line L32. Also in this case, in the first and second pole terminal members 520U and 530U, the interval S32 between the two first pole convex terminals 521 arranged adjacent to each other in the direction of the center line L32 and the interval between the two second pole concave terminals 531. S32 is ½ or more of the length M32 of the holder main body 510 in the direction of the center line L32. Specifically, the case where the interval S32 is 1/2 of the length M32 is illustrated.

The first connection member 540 is formed of a conductive plate that is bent at a right angle from the right inner surface to the upper inner surface in the longitudinal direction inside the holder main body 510, and is provided in contact with the first electrode terminal member 520U. ing.
The second connection member 550 is formed of a square conductive plate having convex portions at four locations on one surface, and is provided in the holder body 510 in contact with the second electrode terminal member 530U.
In the two series × 4 parallel cells E, the four first poles (positive electrode) e1 are in contact with the first connection member 540, and the four second poles (negative electrode) e2 are the four convex portions of the second connection member 550. So as to come into contact with the battery holder H32. In addition, on the inner surface of the holder main body 510, the second connection member 550 is supported so as not to be bent by the weight of the unit cell E, and the first connection member 540 and each unit cell E in the longitudinal direction of the holder body 510 are supported. A partition wall 510a that prevents contact with terminals other than the right end face and prevents the eight unit cells E from wobbling is formed.
A voltage twice as high as the voltage of the battery pack Q31 shown in FIG. 22 can be obtained from the battery pack Q32 in which the eight unit cells E are accommodated in the holder main body 510. Then, similarly to the battery pack Q31, a plurality of battery packs Q32 can be connected in series (see FIG. 23) or connected in series and in parallel (see FIG. 25).

  Although not shown in the drawings, as another modification of the battery holder embodiment 2-1A, a battery in a positional relationship in which the unit cell E in FIG. 22A is rotated 90 ° right or left in a plane. A pack can be mentioned.

(Embodiment 2-1B)
28A to 28D are a plan view, a left side view, a front view, and a right side view showing Embodiment 2-1B of the battery holder of the present invention.
This battery holder H33 is different from the battery holder H31 of Embodiment 2-1A (FIG. 21) mainly in that the shape of the first electrode terminal and the second electrode terminal and that the holder body is provided with a connecting member. .
Hereinafter, the difference between the battery holder H33 and the battery holder H31 of Embodiment 2-1A will be mainly described.

The holder main body 410B of the battery holder H33 includes a container main body and a lid that are substantially the same as the battery holder H31 of Embodiment 2-1A. A first polar surface terminal 620 as a polar terminal and a second polar surface terminal 630 as a second polar terminal are provided. Attachment of the first and second polar surface terminals 620 and 630 to the holder body 410B is the same as the holder body 10B (see FIG. 8) of Embodiment 1-1B.
The internal structure of the holder main body 410B is the same as that of the holder main body 410 (see FIG. 22) of Embodiment 2-1A. One electrode (positive electrode) is electrically connected, and the second electrode surface terminal 630 and each second electrode (negative electrode) of the four unit cells E are electrically connected by the second connecting member. .

In the holder main body 410B, the upper surface is provided with four convex portions 410Ba ₁ as connecting portions, and the left side surface is provided with four concave portions 410Ba ₂ as connecting portions. The shapes of the convex portions 410Ba ₁ and the concave portions 410Ba ₂ and the relative formation positions with respect to the respective surfaces are the same as those in the embodiment 1-1B, are symmetrical with respect to the orthogonal plane P33, and are in the direction of the center line L33 (longitudinal The distance S33 between the two sets of convex portions 410Ba ₁ adjacent to each other in the direction) is the same as the distance S33 between the two sets of concave portions 410Ba ₂ and is ½ or more of the length M31 of the holder body 410B (specifically, Is 1/2). Further, the interval K33 between the two sets of convex portions 410Ba ₁ adjacent to each other in the left-right direction of the holder main body 410B and the interval J33 between the two sets of the concave portions 410Ba ₂ adjacent to each other in the height direction are the same.
In the battery holder H33 configured as described above, it is difficult to visually distinguish the first and second polar surface terminals 620 and 630, but the first polar surface terminal is more disposed when the convex portion 410Ba ₁ is disposed. (Positive electrode) 620, and the direction where the concave portion 410Ba ₂ is disposed is the second polar surface terminal (negative electrode) 630.

FIG. 29A is a front view showing a battery pack in which a plurality of battery packs each having a single battery are combined in series with the battery holder of Embodiment 2-1B, and FIG. 29B is a left side view.
As shown in FIGS. 29 (A) and 29 (B), the battery pack Q33 in which four parallel cells are accommodated in the battery holder H33 has four protrusions 410Ba _{1 of} one battery pack Q33 and other adjacent batteries. By fitting into the four recesses 410Ba ₂ of the pack Q33, the first polar surface terminal 620 of one battery pack Q33 and the second polar surface terminal 630 of another battery pack Q33 adjacent to each other are in full contact. Are electrically connected. At the same time, by the respective protrusions 410Ba ₁ and each recess 410Ba ₂ is connected, the battery pack Q33 each other are physically linked.
The circuit of the assembled battery G33 in which the three battery packs Q33 are combined in this manner is substantially the same as the circuit of the assembled battery G31 of Embodiment 2-1A shown in FIG.
In FIGS. 29A and 29B, the orientation of the first polar surface terminal 620 from the first battery pack Q33 located below to the third battery pack Q33 is in the order of top, right, top. This case is illustrated and can be repeated. Although not shown in the drawings, the orientation of the first polar terminal 620 can be repeated in the order of up, right, down, and right from the first battery pack Q33 to the fourth battery pack Q33. .
In addition, as in the case of Embodiment 2-1A, depending on the shape of the battery holder and the terminal arrangement, it should be noted that there is a combination that forms a closed circuit (type 3) between the battery packs.

FIG. 30 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery in the battery holder of Embodiment 2-1B are combined in series and in parallel, not only in the planar direction but also in the height direction.
The combination of the six battery packs Q33 (Q33a to Q33f) in this case can be performed according to the assembled battery G32 (see FIGS. 25 and 26) of Embodiment 2-1A. An assembled battery G34 that is combined in 2 parallel × 3 series is configured. The circuit of this assembled battery G34 is substantially the same as the circuit of the assembled battery G32 of Embodiment 2-1A shown in FIG.

<< Embodiment 2-2 series >>
In the battery holder of Embodiment 2-2 series, one first electrode terminal and one second electrode terminal are arranged on one surface parallel to the center line, and the first electrode terminal is disposed on the other surface orthogonal to the one surface. One second pole terminal is arranged one by one, the first pole terminal and the second pole terminal on the same plane are symmetrical with respect to any orthogonal plane perpendicular to the center line, and the first pole terminals and the first pole terminals The two pole terminals are arranged on the same side in the center line direction, the two first pole terminals are connected to each other, and the two second pole terminals are connected to each other.
In this case, the first polar convex terminal and the first polar concave terminal, the second polar convex terminal and the second polar concave terminal, and the first polar convex terminal and the second polar concave terminal have a central angle of 90 with respect to the center line. It is preferable that the convex shape of the first pole and the second pole convex terminal and the concave shape of the first pole and the second pole concave terminal are such that any convex terminal and concave terminal are mutually A shape that can be fitted is preferable.
Specifically, a battery holder like Embodiment 2-2A or 2-2B mentioned later can be comprised.

(Embodiment 2-2A)
FIGS. 31A to 31D are a plan view, a left side view, a front view, and a right side view showing the embodiment 2-2A of the battery holder of the present invention. 32A to 32C are cross-sectional views taken along the line AA in FIG. 31A, the cross-sectional view taken along the line BB in FIG. 31A, and the cross-sectional view taken along the line CC in FIG. It is.
Although the external appearance of the battery holder H41 of Embodiment 2-2A and the battery holder H31 of Embodiment 2-1A (see FIG. 21) is substantially the same, their internal structures are completely different. Hereinafter, the points of the embodiment 2-2A different from the embodiment 2-1A will be mainly described.

  In the battery holder H41 of Embodiment 2-2A, one first pole convex terminal 721 and one second pole convex terminal 731 are arranged on the upper surface parallel to the center line L41, and on the left side parallel to the center line L41. One first polar concave terminal 722 and one second polar concave terminal 732 are arranged. Further, the first polar convex terminal 721 and the second polar convex terminal 731, and the first polar concave terminal 722 and the second polar concave terminal 732 are arranged symmetrically across the orthogonal plane P41 orthogonal to the center line L41, The first polar convex terminal 721 and the first polar concave terminal 722 are electrically connected to each other, and the second polar convex terminal 731 and the second polar concave terminal 732 are electrically connected to each other.

  Further, the convex shape of the first polar convex terminal 721 and the second polar convex terminal 731 and the concave shape of the first polar concave terminal 722 and the second polar convex terminal 732 can be fitted to each other in any combination. It is. Further, the relative position between the first polar convex terminal 721 and the first polar concave terminal 722, the relative position between the second polar convex terminal 731 and the second polar concave terminal 732, and the first polar convex terminal 721 and the second polar concave. The relative position with respect to the terminal 732 is arranged at a relative position where the center angle θ is 90 ° with respect to the center line L41. Further, the distance S41 between the first polar convex terminal 721 and the second polar convex terminal 731 and the distance S41 between the first polar concave terminal 722 and the second polar concave terminal 732 arranged adjacent to each other in the direction of the center line L41 are as follows. It is 1/2 or more (specifically 1/2) of the length M41 in the direction of the center line L41.

More specifically, the holder main body 710 of the battery holder H41 includes a rectangular parallelepiped container main body 710a having an opening opening on the right side, and a rectangular plate lid 710b that covers the opening of the container main body 710a so as to be opened and closed. These are made of an insulating resin material.
A vertical wall 710a ₁ is formed in the vicinity of the left side wall of the inner bottom surface of the container main body 710a, and two parallel horizontal walls 710a ₂ and 710a ₃ are formed from the vertical wall 710a ₁ toward the lid body 710b. Yes. That is, the container body 710a is not rattled in a state where four unit cells E are laid in the space surrounded by the front and rear walls, the vertical wall 710a ₁ and the upper and lower horizontal walls 710a ₂ and 710a _3. It is configured so that it can be held.
In addition, four holes through which the first pole convex terminal 721, the second pole convex terminal 731, the first pole concave terminal 722, and the second pole concave terminal 732 are inserted are formed in the upper wall and the left side wall of the container body 710a. Is formed.
Note that the container body 710a and the lid body 710b are formed with a pair of protrusions and a pair of engagement projections (see FIG. 2B) (not shown).

The first polar convex terminal 721, the second polar convex terminal 731, the first polar concave terminal 722, and the second polar concave terminal 732 are the same as those in the embodiment 1-2A. The polar concave terminal 722 is electrically connected by the first connecting member 740, and the second polar convex terminal 731 and the second polar concave terminal 732 are electrically connected by the second connecting member 750.
The first connection member 740 is fixed to the inner surface of the container body 710a, contacts the first polar convex terminal 721 and the first polar concave terminal 722, and electrically connects the first member 740a, and the lid 710b. The second member 740b is fixed to the inner surface and is in contact with and electrically connected to the first member 740a and the first electrode e1 of the four unit cells E, and these are formed of a conductive plate. .
The second connection member 750 is a conductive plate fixed to the vertical wall 710a ₁ and is in contact with the second pole convex terminal 731 and the second pole e2 and the second pole concave terminal 732 of the four unit cells E. Thus, they are formed in a shape for electrically connecting them. Note that a hole is formed in the vicinity of the second polar concave terminal 732 of the vertical wall 710a ₁ , and a part of the second connecting member 750 passing through the hole is in contact with the second polar concave terminal 732. .

In this case, the second member 740b of the first connection member 740 is removed from the first member 740a and the first pole of each unit cell E by removing the lid 710b to put the four unit cells E into the container body 710a. Although it does not come into contact with e1, it comes into contact again if the lid 710b is attached to the container body 710a again.
In the battery holder H41 thus configured, the adjacent first polar convex terminal (positive electrode) 721 and second polar convex terminal (negative electrode) 731 and the adjacent first polar convex terminal (positive electrode) 722 and second polar concave The terminal (negative electrode) 732 is difficult to identify in appearance. Therefore, in this case, for example, it is preferable to attach a mark (polarity, mark, color, etc.) for identifying them in the vicinity of each terminal on the outer surface of the holder body 710.

FIG. 33 (A) is a front view showing a battery assembly in which a plurality of battery packs each having a single battery are combined in parallel with the battery holder of Embodiment 2-2A, and FIG. 33 (B) is a left side view.
In this case, by fitting the first polar convex terminal 721 and the second polar convex terminal 731 of one battery pack Q41 into the first polar concave terminal 722 and the second polar concave terminal 732 of another adjacent battery pack Q41. An assembled battery G41 is configured by combining two battery packs Q41 each having four parallel cells E (see FIG. 14).
The voltage of one battery pack Q41 is equal to the voltage of one single cell E. Therefore, the voltage of the assembled battery G41 formed by connecting two battery packs Q41 in parallel is equal to the voltage of one single battery E.
In addition, the first polar convex terminal 721 and the second polar convex terminal 731 of one battery pack Q41 are fitted into the second polar concave terminal 732 and the first polar concave terminal 722 of another adjacent battery pack Q41, that is, When the upper battery pack Q41 shown in FIG. 33 is combined with the lower battery pack Q41 in the opposite direction by 180 ° in the plane, a closed circuit (type 1) is formed.

FIG. 34 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series with the battery holder of Embodiment 2-2A and not only in the front-rear direction but also in the height direction. It is a conceptual diagram which shows the circuit of the assembled battery of FIG.
In this case, the two battery packs Q41a and Q41b are arranged in the longitudinal direction so that the terminal shapes (uneven shapes) are aligned in the same direction and the polarities are alternated, and the adjacent second polar projections of the battery packs Q41a and Q41b are arranged. The first polar concave terminal 722 and the second polar concave terminal 732 of the third battery pack Q41c are fitted into the terminal 731 and the first polar convex terminal 721, and here, one of the two battery packs Q41a and Q41b arranged side by side. By fitting the first polar concave terminal 722 of the fourth battery pack Q41d into the remaining second polar convex terminal 731 of the battery pack Q41b, four battery packs Q41a to Q41d are arranged in series in the front-rear and vertical directions. The assembled battery G42 in the combined connection form is configured.

In the case of this assembled battery G42, at least one of the first pole convex terminal 721 and the first pole concave terminal 722 of the first battery pack Q41a arranged at one end in the series connection direction and the other in the series connection direction. At least one of the second polar convex terminal 731 and the second polar concave terminal 732 of the fourth battery pack Q41d disposed at the end serves as a power extraction terminal.
Since this assembled battery G42 is a combination of four battery packs Q41 in series, the voltage is equal to four times the voltage of the unit cell E.
As in the case of Embodiment 1-2A, when an assembled battery is configured by reversing the polarity of one of the four battery packs Q41, the power of the assembled battery is supplied from the connection terminal. Care must be taken when combining a plurality of battery packs Q41 in series because they cannot be taken out sufficiently.
In addition, as long as the battery pack Q41 has a shape and terminal arrangement that can be combined in an L shape, and the battery pack Q21 in Embodiment 1-2A is a ring battery assembly, the battery packs are closed circuits. Care must be taken because (type 2) is formed.

36A to 36D are a plan sectional view, a left side view, a front sectional view, and a right side view showing a modification of the embodiment 2-2A of the battery holder of the present invention. In FIG. 36, the same elements as those in FIG. 32 are denoted by the same reference numerals.
Since this battery holder H42 accommodates eight unit cells E in 2 series × 4 parallel, the shape and internal structure of the holder body 810 are mainly different from the battery holder H41 of FIG.
Hereinafter, the difference between the battery holder H42 and the battery holder H41 of FIG. 32 will be mainly described.

This holder main body H810 is comprised from the container main body 810a and the cover body 810b, and the two unit cells E arranged in series in the longitudinal direction in the inside are accommodated in 2 lower rows and 2 upper rows. In the holder main body 810, a vertical wall 810a ₁ that separates the unit cell E and the first and second connection members 840 and 850 is provided.
The first connection member 840 is made of a conductive plate, is fixed to the inner surface of the rear wall of the container body 810a, and is electrically connected to the first electrode (positive electrode) e1 of the upper and lower four unit cells E; A second portion 840b bent from the first portion 840a toward the upper wall and electrically connected to the first polar convex terminal 721; a first polar concave terminal 722 bent from the first portion 840a toward the left side wall; The third portion 840c is electrically connected.

The second connection member 850 is made of a conductive plate, is fixed to the inner surface of the front wall of the container body 810a, and is electrically connected to the second electrodes (negative electrodes) e2 of the upper and lower four unit cells E; A second portion 850b bent from the first portion 850a toward the upper wall and electrically connected to the second polar convex terminal 731; and a second polar concave terminal 732 bent from the first portion 850a toward the left side wall. The third portion 850c is electrically connected.
The vertical wall 810a ₁ is formed with slits through which the third portions 840c and 850c of the first and second connecting members 840 and 850 are passed.
A voltage twice as high as the voltage of the battery pack Q41 shown in FIG. 32 can be obtained from the battery pack Q42 in which the eight unit cells E are accommodated in the holder main body 810. Then, similarly to the battery pack Q41, a plurality of battery packs Q42 can be connected in parallel (see FIG. 33) or in series (see FIG. 34).

(Embodiment 2-2B)
FIGS. 37A to 37D are a plan view, a left side view, a front view, and a right side view showing the embodiment 2-2B of the battery holder of the present invention.
This battery holder H43 mainly includes the shapes of the first electrode terminal and the second electrode terminal, and the holder main body provided with convex portions 710Ba ₁ and concave portions 710Ba ₂ as connecting members, as shown in Embodiment 2-2A (FIG. 31) different from the battery holder H41.
Hereinafter, the difference between the battery holder H43 and the battery holder H41 of the embodiment 2-2A will be mainly described.

The holder body 710B of the battery holder H43 includes a container body and a lid that are substantially the same as the battery holder H41 of Embodiment 2-2A. 921 and a second polar surface terminal 931 are provided, and a first polar surface terminal 922 and a second polar surface terminal 932 are provided on the left side of the container body parallel to the center line L43. Attachment of the first and second polar surface terminals 921, 922, 931, and 932 to the holder body 710B is the same as that of the holder body 10B (see FIG. 8) of Embodiment 1-1B.
The internal structure of the holder main body 710B is the same as that of the holder main body 710 (see FIG. 31) of the embodiment 2-2A, and the first polar surface terminals 921 and 922 and the four unit cells E Each first electrode (positive electrode) is electrically connected, and the second electrode surface terminals 931 and 932 and each second electrode (negative electrode) of the four unit cells E are electrically connected by the second connecting member. It is connected.

Also in this embodiment, as shown in FIG. 37 (B), the convex portion 710Ba ₁ and the concave portion 710Ba ₂ are arranged symmetrically with respect to the orthogonal plane P43 that bisects the length M41 of the holder body 710B. . Further, the two pairs of protrusions 710Ba ₁ together spacing S43 in adjacent to the center line L43 direction of the holder main body 710B (longitudinal direction), two pairs of recesses 710Ba ₂ interval S43 in between is the same and the holder body length It is 1/2 or more (specifically 1/2) of the length M41. Further, the holder body lateral direction spacing of the two sets of protrusions 710Ba ₁ adjacent to each other of 710B K43, two pairs of recesses 710Ba ₂ interval between J43 adjacent in the height direction is the same.
In the battery holder H43 configured as described above, the adjacent first polar surface terminal (positive electrode) 921 and second polar surface terminal (negative electrode) 931, and the adjacent first polar surface terminal (positive electrode) 922 and the first The dipole surface terminal (negative electrode) 932 is difficult to identify in appearance. Therefore, also in this case, for example, it is preferable to attach a mark for identifying them in the vicinity of each terminal on the outer surface of the holder body 710B.

FIG. 38 (A) is a front view showing a battery pack in which a plurality of battery packs each having a single battery are combined in parallel with the battery holder of Embodiment 2-2B, and FIG. 38 (B) is a left side view.
As shown in FIGS. 38A and 38B, the battery pack Q43 in which four parallel cells are accommodated in the battery holder H43 has four protrusions 710Ba ₁ of _one battery pack Q43 and other battery packs Q43. The four recesses 710Ba ₂ are assembled and assembled. At this time, the first polar surface terminal 922 and the second polar surface terminal 932 of another battery pack Q43 are electrically connected to the first polar surface terminal 921 and the second polar surface terminal 931 of one battery pack Q43. Connect to.
The circuit of the assembled battery G43 obtained by combining the two battery packs Q43 in this manner is substantially the same as the circuit of the assembled battery G41 of Embodiment 2-2A shown in FIG.

FIG. 39 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and not only in the front-rear direction but also in the height direction in the battery holder of Embodiment 2-2B.
In this case, the protrusions 710Ba ₁ in the same direction, and arranged polarities are alternately as two battery packs Q43a and Q43b in the longitudinal direction, the second pole face shaped terminals 931 to which the battery pack Q43a, adjacent Q43b And the first polar surface terminal 921 are brought into contact with the first polar surface terminal 922 and the second polar surface terminal 932 of the third battery pack Q43c, and here two of the battery packs Q43a and Q43b arranged side by side. By contacting the first polar surface terminals 922 of the fourth battery pack Q41d with the remaining second polar surface terminals 931 of one battery pack Q43b, four battery packs Q43a to Q43d are connected in four series, The assembled battery G44 is configured to be connected in the front / rear / up / down direction.
The circuit of the assembled battery G44 in which the four battery packs Q43 are combined in this manner is substantially the same as the circuit of the assembled battery G42 of Embodiment 2-2A shown in FIG.
In addition, when assembling the assembled battery G43 or the assembled battery G44 using the battery pack Q43, it is necessary to be careful so that the cell can be prevented from rupturing and firing and the power can be fully utilized, as in the case of the embodiment 2-2A. There is.

<< Embodiment 3-1 series >>
In the battery holder of the embodiment 3-1 series, the first electrode terminal is disposed on the first surface parallel to the center line and the second surface orthogonal to the first surface, and the third is orthogonal to the second surface. The second electrode terminals are arranged on the surface and on the fourth surface orthogonal to the third surface, the first electrode terminals on the first surface and the second surface are electrically connected, and on the third surface and the fourth surface. The second electrode terminals are electrically connected.
In this case, two first pole terminals on the first surface, two first pole terminals on the second surface, and a third surface across any orthogonal plane perpendicular to the center line. It is preferable that two second electrode terminals and two second electrode terminals are symmetrically arranged on the fourth surface.
Furthermore, the first electrode terminal on the first surface and the first electrode terminal on the second surface, the first electrode terminal on the second surface and the second electrode terminal on the third surface, the second electrode terminal on the third surface and the fourth surface. The second electrode terminal, the second electrode terminal on the fourth surface, and the first electrode terminal on the first surface are preferably arranged at a relative position with a center angle of 90 ° with respect to the center line.
Specifically, a battery holder like Embodiment 3-1A or 3-1B described later can be configured.

(Embodiment 3-1A)
40A to 40D are a plan view, a left side view, a front view, and a right side view showing Embodiment 3-1A of the battery holder of the present invention. 41A and 41B are a cross-sectional view taken along line AA in FIG. 40B and a cross-sectional view taken along line BB in FIG.
Since the embodiment 3-1A is related to the embodiments 1-1A and 2-1A, differences from these will be mainly described.

The holder main body 1010 has a rectangular parallelepiped shape that can accommodate a total of eight unit cells E in which two series of unit cells E are arranged in two rows vertically. A center line L51 of the holder body 1010 is a line passing through the centers of both end faces in the longitudinal direction. In addition, this holder main body 1010 is also comprised from the container main body and cover body which were formed with the insulating resin material.
In the battery holder H51 of Embodiment 3-1A, the first polar terminals 1021, 1022 are arranged on the first surface 1010a parallel to the center line L51 and the second surface 1010b orthogonal to the first surface 1010a, respectively. Second polar concave terminals 1031 and 1032 are arranged on a third surface 1010c orthogonal to the second surface 1010b and a fourth surface 1010d orthogonal to the third surface 1010c, respectively.
The first polar convex terminals 1021 and 1022 on the first surface 1010a and the second surface 1010b are electrically connected to each other by the first connecting member 1040, and the second polar concave terminals 1031 and 1032 on the third surface 1010c and the fourth surface 1010d. The two are electrically connected by a second connecting member 1050.

In addition, across the orthogonal plane P51 orthogonal to the center line L51, two first pole terminals 1021 on the first face 1010a, two first pole terminals 1022 on the second face 1010b, and on the third face 1010c In addition, two second pole terminals 1031 and two second pole terminals 1032 are symmetrically arranged on the fourth surface 1010d. The two first polar convex terminals 1021 are integrated by a first polar terminal member 1021U formed of a single conductive plate, and the two first polar convex terminals 1022 are first pole terminal members. The two second pole concave terminals 1031 are integrated by the second pole terminal member 1031U, and the two second pole concave terminals 1032 are integrated by the second pole terminal member 1032U. ing.
Also, the first electrode terminal 1021 on the first surface 1010a and the first electrode terminal 1022 on the second surface 1010b, the first electrode terminal 1022 on the second surface 1010b, the second electrode terminal 1031 on the third surface 1010c, and the third surface 1010c. The second pole terminal 1031 and the second pole terminal 1032 on the fourth face 1010d, and the second pole terminal 1032 on the fourth face 1010d and the first pole terminal 1021 on the first face 1010a are centered with respect to the center line L51. The angle θ is disposed at a relative position of 90 °.
Also in this case, an interval S51 between the pair of first polar convex terminals 1021 on the first surface 1010a and an interval S51 between the pair of first polar convex terminals 1022 on the second surface 1010b, which are arranged adjacent to each other in the direction of the center line L51. The distance S51 between the pair of second polar concave terminals 1031 on the third surface 1010c and the distance S51 between the pair of second polar concave terminals 1032 on the fourth surface 1010d are the same, and the direction of the center line L51 of the holder body 1010 Is ½ or more of the length M51 (specifically, ½).

Inside the holder main body 1010, the first connection member 1040 includes a first surface 1010a, a second surface 1010b, and a conductive plate provided along an end surface 1010e orthogonal to these, and includes first pole terminal members 1021U and 1022U. While being in electrical contact, it is in electrical contact with the four first poles e1 of the cells E arranged vertically.
Further, in the holder main body 1010, the second connection member 1050 is composed of a third surface 1010c, a fourth surface 1010d, and a conductive plate provided along an end surface 1010f orthogonal thereto, and the second electrode terminal member 1031U, While being in electrical contact with 1032U, it is in electrical contact with the four second electrodes e2 of the unit cells E arranged one above the other.

FIG. 42 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series with the battery holder of Embodiment 3-1A not only in the left-right direction but also in the height direction.
Referring to FIGS. 40 and 42, in this case, the pair of first polar convex terminals 1021 on the first surface 1010a of the lower left battery pack Q51 is connected to the third surface 1010c of the adjacent lower right battery pack Q51. The pair of second polar concave terminals 1031 is fitted, and the pair of first polar convex terminals 1022 on the second surface 1010b of the lower right battery pack Q51 is connected to the pair of second electrodes 104d of the adjacent upper right battery pack Q51. It is fitted in the polar concave terminal 1032. Thereby, the assembled battery G51 of the connection form which combined three battery packs Q51 which have a single battery of 2 series x 4 parallel is comprised.
Although not shown, in the case of the embodiment 3-1A exemplified here, there is a connection method in which a closed circuit (type 3) is formed between the battery packs as in the battery pack Q31 in the embodiment 2-1A. Care should be taken when combining the battery pack Q51 having such a shape and terminal arrangement that can be connected, including the exemplified embodiments.

The voltage of one battery pack Q51 is equal to twice the voltage of one cell E. Therefore, the voltage of the assembled battery G51 formed by connecting the three battery packs Q51 in series is equal to six times the voltage of the single cell E. In the present embodiment, similarly to Embodiment 1-1A, an assembled battery G51 having a voltage value obtained by multiplying the voltage of one battery pack Q51 by the number of battery packs Q51 can be obtained.
When taking out the power from the assembled battery G51, at least one of the four first pole protruding terminals 1021, 1022 (positive electrode) exposed outside the upper right battery pack Q51 and the outside of the lower left battery pack Q51 are exposed. At least one of the four second electrode concave terminals 1031 and 1032 (negative electrode) is electrically connected to an external circuit.

FIG. 43 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and in parallel in the battery holder of Embodiment 3-1A not only in the front-rear direction but also in the height direction.
Referring to FIGS. 40 and 43, in this case, two battery packs Q51 having the same polarity in the same direction are arranged in the longitudinal direction, and the two battery packs Q51 are adjacent to each other on the second surface 1010b. The two first polar convex terminals 1022 are fitted into the pair of second polar concave terminals 1032 on the fourth surface 1010d of the third battery pack Q51, and the remaining first one of the two battery packs Q51 arranged side by side. By fitting one second polar-concave terminal 1032 of the fourth battery pack Q51 into the polar-convex terminal 1022, four battery packs Q51 having 2 series × 4 parallel cells are arranged in 2 parallel × 2 series. Thus, the assembled battery G52 combined in the front-rear and up-down directions is configured. The voltage of the assembled battery G52 is equal to four times the voltage of the cell E.
In addition, an assembled battery can also be comprised using both the connection forms shown in FIG. 42 and FIG.

When the plurality of battery packs Q51 are combined as described above, the distance between two sets of first polar convex terminals and two sets of second polar concave terminals arranged adjacent to each other in the direction of the center line L51 of each battery pack Q51. Since S51 is ½ or more of the length M51 of the holder body 1010, there is a problem that the third battery pack Q51 cannot be combined with the two battery packs Q51 arranged side by side. There is no problem that the fourth battery pack Q51 interferes with the fourth battery pack Q51 and cannot be combined.
When taking out the electric power from the assembled battery G52, at least one first pole convex terminal of the third battery pack Q51 and at least one first pole convex terminal of the fourth battery pack Q51 are connected to the positive electrode of the external circuit. And at least one second electrode concave terminal of the first battery pack Q51 and at least one second electrode concave terminal of the second battery pack Q51 of the external circuit. Electrically connected in parallel to the negative lead wire.

  In addition, also in this embodiment, if the battery pack Q51 has a shape and terminal arrangement that can be combined in an L shape, a more complicated connection form can be obtained.

  Although not shown, as a modification of the battery pack Q51 of Embodiment 3-1A, there is a battery pack having a positional relationship in which the unit cell E in FIG. it can. In this case, the merit which can simplify the shape of the 1st and 2nd connection members 1040 and 1050 is acquired.

(Embodiment 3-1B)
44A to 44D are a plan view, a left side view, a front view, and a right side view showing the embodiment 3-1B of the battery holder of the present invention.
Embodiment 3-1B is related to embodiments 1-1B, 2-1B, and 3-1A.
Specifically, the battery holder H52 of Embodiment 3-1B replaces the first electrode terminal members 1021U and 1022U in Embodiment 3-1A with the first electrode surface terminals 1121 and 1122, and the second electrode terminal member 1031U, 1032U is replaced with the second polar surface terminals 1131 and 1132. Further, a convex portion 1110Ba ₁ is provided on the first surface and the second surface 1110a, 1110b of the holder main body 1110, and a concave portion 1110Ba ₂ is provided on the third surface and the fourth surface 1110c, 1110d.
In the embodiment 3-1B, the internal structure of the holder main body is substantially the same as that of the embodiment 3-1A, and the shapes, formation positions, etc. of the surface terminals and the connecting members are the same as those of the embodiments 1-1B and 2-1B. .

FIG. 45 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series with the battery holder of Embodiment 3-1B and not only in the left-right direction but also in the height direction. It is a perspective view which shows the assembled battery which combined the battery pack provided with the single battery in the battery holder of Embodiment 3-1B in series and parallel and not only in the front-back direction but also in the height direction.
The assembled battery G53 shown in FIG. 45 is formed by combining the battery pack Q52 in the same manner as the assembled battery G51 shown in FIG. The assembled battery G54 shown in FIG. 46 is formed by combining the battery pack Q52 in the same manner as the assembled battery G52 shown in FIG. Also in the case of Embodiment 3-1B, the assembled battery can be configured by using both of the connection modes shown in FIGS. 45 and 46.

<< Embodiment 3-2 series >>
The battery holder of Embodiment 3-2 series includes a first surface parallel to the center line, a second surface orthogonal to the first surface, a third surface orthogonal to the second surface, and orthogonal to the third surface. One first pole terminal and one second pole terminal are arranged on the fourth surface, and the first pole terminal and the second pole terminal on the same plane across each orthogonal plane orthogonal to the center line. Are symmetrical, and the first electrode terminals and the second electrode terminals are arranged on the same side in the center line direction, and the four first electrode terminals are electrically connected to each other, and the four second electrode terminals are connected to each other. Are connected to each other.
In this case, the first pole terminals on the first surface and the second surface are first polar convex terminals, the second pole terminals on the first surface and the second surface are second polar convex terminals, and the third surface And the first pole terminal on the fourth surface comprises a first pole concave terminal, the second pole terminal on the third and fourth surfaces comprises a second pole concave terminal, and the first pole and the second pole convex terminal. It is preferable that the convex shape and the concave shape of the first pole and the second pole concave terminal are shapes in which any convex terminal and concave terminal can be fitted to each other.
Furthermore, the first polar convex terminals, the first polar convex terminal on the second surface and the first polar concave terminal on the third surface, the first polar concave terminals, the first polar concave terminal on the fourth surface and the first First polar convex terminals on one surface, second polar convex terminals, second polar convex terminals on second surface and second polar concave terminals on third surface, second polar concave terminals, on fourth surface The second polar concave terminal and the second polar convex terminal on the first surface, and the first polar convex terminal on the second surface and the second polar concave terminal on the third surface have a central angle of 90 with respect to the center line. It is preferable that they are arranged at a relative position of °.
Specifically, a battery holder like Embodiment 3-2A or 3-2B described later can be configured.

(Embodiment 3-2A)
47A to 47D are a plan view, a left side view, a front view, and a right side view showing Embodiment 3-2A of the battery holder of the present invention. FIGS. 48A and 48B are a cross-sectional view taken along the line AA in FIG. 47B and a cross-sectional view taken along the line BB in FIG. 47A.
Since Embodiment 3-2A is related to Embodiments 1-2A and 2-2A, differences from these will be mainly described.

The holder main body 1210 has a rectangular parallelepiped shape that can accommodate a total of eight unit cells E in which two series of unit cells E are arranged in two rows vertically. The center line L61 of the holder main body 1210 is a line passing through the centers of both end faces in the longitudinal direction. The holder main body 1210 is also composed of a container main body and a lid formed of an insulating resin material.
In the battery holder H61 of Embodiment 3-2A, on the first surface 1210a parallel to the center line L61, on the second surface 1210b orthogonal to the first surface 1210a, on the third surface 1210c orthogonal to the second surface 1210b, and One first pole terminal and one second pole terminal are arranged on a fourth face 1210d orthogonal to the third face 1210c.

In this case, the first polar convex terminal 1221 and the second polar convex terminal 1231 on the first surface 1210a, the first polar convex terminal 1222 and the second polar convex terminal 1232 on the second surface 1210b, and the third polar surface on the third surface 1210c. The 1st polar-concave terminal 1223 and the 2nd polar-concave terminal 1233, and the 1st polar-concave terminal 1224 and the 2nd polar-concave terminal 1234 are arrange | positioned on the 4th surface 1210d. The convex shape of the first polar convex terminals 1221 and 1222 and the second polar convex terminals 1231 and 1232 and the concave shape of the first polar concave terminals 1223 and 1224 and the second polar concave terminals 1233 and 1234 are arbitrary convex terminals. The concave terminals have a shape that can be fitted to each other.
Hereinafter, in Embodiment 3-2A, the first polar convex terminals 1221 and 1222 and the first polar concave terminals 1223 and 1224 may be collectively referred to as “first polar terminals”, and the second polar convex terminals 1231 and 1232 and The second pole concave terminals 1233 and 1234 may be integrated to be referred to as a “second pole terminal”.

Further, in the battery holder H61, the first electrode terminal and the second electrode terminal on the same surface are symmetrical with respect to the orthogonal plane P61 orthogonal to the center line L61, and the first electrode terminals and the second electrode terminals are Arranged on the same side in the direction of the center line L61.
The four first electrode terminals are electrically connected to each other by the first connecting member 1240, and the four second electrode terminals are electrically connected to each other by the second connecting member 1250.
Also, the first polar convex terminals 1221, 1222, the first polar convex terminals 1222 on the second surface 1210b, the first polar concave terminals 1223 on the third surface 1210c, the first polar concave terminals 1223, 1224, the fourth The first polar concave terminal 1224 on the surface 1210d, the first polar convex terminal 1221 on the first surface 1210a, the second polar convex terminals 1231 and 1232, the second polar convex terminal 1232 on the second surface 1210b, and the third surface. 2nd polar concave terminal 1233 on 1210c, 2nd polar concave terminal 1233, 1234, 2nd polar concave terminal 1234 on 4th surface 1210d, 2nd polar convex terminal 1232 on 1st surface 1210a, and 2nd surface The first polar convex terminal 1222 on 1210b and the second polar concave terminal 1233 on the third surface 1210c are disposed at a relative position with a center angle of 90 ° with respect to the center line L61.
Also in this case, the distance S61 between the first pole terminal and the second pole terminal arranged adjacent to each other in the direction of the center line L61 is the same, and is 1/2 of the length M61 of the holder body 1210 in the direction of the center line L61. This is the above (specifically 1/2).

In the holder main body 1210, the first connecting member 1240 is composed of a first plate to a fourth surface 1210a to 1210d and a conductive plate provided along an end surface 1210e orthogonal to the first to fourth surfaces 1210a to 1210d. In addition, it is in electrical contact with the first pole concave terminals 1223 and 1224 and in electrical contact with the four first poles e1 of the cells E arranged vertically.
Further, in the holder main body 1210, the second connection member 1250 is composed of a conductive plate provided along the first surface to the fourth surface 1210a to 1210d and the end surface 1210f orthogonal to these, and the second polar convex terminal 1231. , 1232 and the second electrode concave terminals 1233, 1234, and are in electrical contact with the four second electrodes e2 of the cells E arranged vertically.

FIG. 49 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in parallel in the battery holder of Embodiment 3-2A and not only in the left-right direction but also in the height direction.
Referring to FIGS. 49 and 47, in this case, the first polar convex terminal 1221 and the second polar convex terminal 1231 on the first surface 1210a of the lower left battery pack Q61 are connected to the adjacent lower right battery pack Q61. The first polar concave terminal 1223 and the second polar concave terminal 1233 of the lower right battery pack Q61 are fitted into the first polar concave terminal 1223 and the second polar concave terminal 1233 of the third surface 1210c, and the first polar convex terminal 1222 and the second polar convex terminal 1232 are adjacent to each other. The upper right battery pack Q61 is fitted into the first polar concave terminal 1224 and the second polar concave terminal 1234 of the fourth surface 1210d. Thereby, the assembled battery G61 of the connection form which combined three battery packs Q61 which have a cell in 2 series x 4 parallel is comprised.
Although not shown, in the case of the embodiment 3-2A exemplified here, as in the case of the embodiment 1-2A and 2-2A, the first polar terminal and the second on the same surface of the one battery pack Q61. If the pole-convex terminal is fitted into the second pole-concave terminal and the first pole-concave terminal on the same surface of another adjacent battery pack Q61, a closed circuit (type 1) is formed, so care must be taken. .

The voltage of one battery pack Q61 is equal to twice the voltage of one single cell E. Therefore, the voltage of the assembled battery G61 formed by connecting the three battery packs Q61 in parallel is equal to twice the voltage of the single battery E.
When taking out the electric power from the assembled battery G61, at least one of the eight first electrode terminals (positive electrodes) exposed to the outside of the battery pack Q61 and the eight second extremes exposed to the outside of the battery pack Q61. At least one of the children (negative electrode) is electrically connected to an external circuit.

FIG. 50 is a perspective view showing an assembled battery in which a plurality of battery packs each provided with a single battery are combined in series and not only in the front-rear direction but also in the height direction in the battery holder of Embodiment 3-2A.
Referring to FIGS. 50 and 47, in this case, two battery packs Q61 having the same polarity in the same direction are arranged in the longitudinal direction, and the two battery packs Q61 are adjacent to each other on the second surface 1210b. Second polar convex terminal 1232 and first polar convex terminal 1222 are fitted into first polar concave terminal 1224 and second polar concave terminal 1234 on fourth surface 1210d of upper battery pack Q61. As a result, a battery pack G62 in which the battery packs Q61 having 2 series × 4 parallel cells are combined in 3 series in the front-rear and up-down directions is configured. The voltage of the assembled battery G62 is equal to 6 times the voltage of the cell E.
In addition, an assembled battery can also be comprised using both the connection forms shown in FIG. 49 and FIG.

When the plurality of battery packs Q61 are combined as described above, the interval S61 between the first electrode terminal and the second electrode terminal on the same surface adjacent to each other in the direction of the center line L61 of each battery pack Q61 Since it is 1/2 or more of the length M61, there is no problem that the upper battery pack Q61 cannot be combined with the two battery packs Q61 arranged. Further, when the fourth battery pack Q61 is arranged in the longitudinal direction with respect to the third (upper) battery pack Q61 and the assembled battery G62 is arranged in four series, the third (upper) battery pack Q61 is also arranged. Does not interfere with the fourth battery pack Q61 and the fourth battery pack Q61 cannot be combined.
When the electric power is taken out from the three series assembled battery G62, at least one first electrode terminal of the first (bottom rear) battery pack Q61 is electrically connected to the positive electrode lead wire of the external circuit, and 2 At least one second electrode terminal of the battery pack Q61 of the first (bottom front) is electrically connected to the negative electrode lead wire of the external circuit.

As in the case of Embodiments 1-2A and 2-2A, when any one of these three battery packs Q61 has a reversed polarity and an assembled battery is configured, in the connection method described above, this assembled battery Therefore, care must be taken when combining a plurality of battery packs Q61 in series.
Also, in the present embodiment, a more complicated connection form can be obtained if the battery pack Q61 has a shape and terminal arrangement that can be combined into an L shape, but in the case of Embodiments 1-2A and 2-2A If a battery pack is formed in the same procedure as in Fig. 1, a closed circuit (type 2) is formed between the battery packs, so care must be taken.

  Although not shown, as a modification of the battery pack Q61 of Embodiment 3-2A, a battery pack having a positional relationship in which the unit cell E in FIG. 48A is rotated 90 ° right or left in a plane. Can be mentioned.

(Embodiment 3-2B)
51A to 51D are a plan view, a left side view, a front view, and a right side view showing Embodiment 3-2B of the battery holder of the present invention.
Embodiment 3-2B is related to embodiments 1-2B, 2-2B, and 3-2A. Specifically, the battery holder H62 of the embodiment 3-2B includes the first polar convex terminals 1221 and 1222 and the first polar concave terminals 1223 and 1224 in the embodiment 3-2A as the first polar surface terminals 1321 to 1324. Instead, the second polar convex terminals 1231 and 1232 and the second polar concave terminals 1233 and 1234 are replaced with the second polar surface terminals 1331 to 1334. Further, a convex portion 1310Ba ₁ is provided on the first surface and the second surfaces 1310a, 1310b of the holder body 1310, and a concave portion 1310Ba ₂ is provided on the third surface and the fourth surfaces 1310c, 1310d.
In the embodiment 3-2B, the internal structure of the holder main body is substantially the same as that of the embodiment 3-2A, and the shapes, formation positions, etc. of the surface terminals and the connecting members are the same as those of the embodiments 1-2B and 2-2B. .

FIG. 52 is a perspective view showing an assembled battery in which a plurality of battery packs each including a single cell are mounted on the battery holder of Embodiment 3-2B in parallel and not only in the horizontal direction but also in the height direction. It is a perspective view which shows the assembled battery which combined the battery pack provided with the single battery in the battery holder of Embodiment 3-2B in series and not only in the front-back direction but also in the height direction.
The assembled battery G63 shown in FIG. 52 is formed by combining the battery pack Q62 in the same manner as the assembled battery G61 shown in FIG. The assembled battery G64 shown in FIG. 53 is formed by combining the battery pack Q62 in the same manner as the assembled battery G62 shown in FIG. Also in the case of Embodiment 3-2B, the assembled battery can be configured by using both of the connection modes shown in FIGS. 52 and 53.

<< Embodiment 1-2AI >>
In the battery packs of the embodiments 1-2, 2-2, and 3-2 series, a warning mark may be provided on the outer surface of the holder body so as not to form an assembled battery having a closed circuit (type 1). As described above, the battery holder of the present invention can prevent the formation of a closed circuit (type 1) and a closed circuit (type 2) as follows.
In particular, in Embodiments 1-2A, 2-2A, and 3-2A that employ the first and second electrode terminals having an uneven shape, the uneven shape of the first and second electrode terminals is combined with two battery packs. Sometimes the closed circuit (type 1) cannot be formed.
That is, when combining the holder bodies having the same polarity in the same direction, with a combination other than parallel movement or rotational movement around the center line, the convex terminal of one holder body and the concave terminal of another holder body are A shape that cannot be fitted to each other, or a shape that the first pole convex terminal of one holder body and the second pole concave terminal of another holder body cannot be fitted to each other, or a second pole convex terminal of one holder body The convex shape of the first and second polar convex terminals and the concave shape of the first and second polar concave terminals are formed in a shape in which the first polar concave terminals of other holder bodies cannot be fitted to each other (this embodiment). 1-2AI). Then, since the holder bodies cannot be combined in an L shape, not only the closed circuit (type 1) but also the closed circuit (type 2) can be prevented.
Furthermore, in this case, the first polar convex terminal, the second polar convex terminal, or the first polar convex terminal and the second polar convex terminal are set to 0 °, 90 °, 180 ° or 270 around the axis in the protruding direction. You may have a rotation fixing mechanism part rotated and positioned, and a pushing mechanism part which can be pushed in in a holder main body in the said position (after-mentioned Embodiment 1-2 AII).
Hereinafter, the embodiment 1-2AI as a modification of the embodiment 1-2A will be described as a representative, but the modifications of the embodiments 2-2A and 3-2A are also the same.
Further, prevention of closed circuit formation will be described by taking a closed circuit (type 1) as an example.

54A to 54D are a plan view, a left side view, a front view, and a right side view showing the battery holder according to Embodiment 1-2AI. In FIG. 54, elements similar to those in FIG. 11 are denoted by the same reference numerals.
In the battery holder H21m of Embodiment 1-2AI, the first pole-convex terminal 221m has a triangular prism shape in a plan view triangle (right side view quadrangle) in which an acute apex is disposed on the front side. The second pole-convex terminal 231m is also a triangular prism having a triangular shape in a plan view (rectangle in a right side view) in which an acute apex is disposed on the front side. The first and second pole convex terminals 221m and 231m are not limited to this shape, and are not point-symmetrical around the axis of the convex terminal (the convex terminal does not coincide with the initial state when rotated 180 °). Any shape can be used.
The first polar concave terminal 222m is formed in the same triangular concave shape as the first polar convex terminal 221m when viewed in plan, and the second polar concave terminal 232m is the same triangular shape as the second polar convex terminal 231m when viewed in plan. Since it is formed in a concave shape, the battery holders H21m arranged in the front or back direction (polarity) aligned can be assembled as shown in FIG. 13 or FIG.
Other configurations of the battery holder H21m are the same as those in Embodiment 1-2A.

FIG. 55A is a plan view showing a state in which the front-facing battery pack (left figure) and the back-facing battery pack (right figure) of Embodiment 1-2AI are arranged in parallel, and FIG. It is a top view which shows the state which arranged the battery pack (left figure) of the surface 1-2 of the form 1-2A, and the battery pack (right figure) facing back in parallel. In FIGS. 55A and 55B, the first pole is a positive electrode (+) and the second pole is a negative electrode (−).
As shown in FIG. 55 (B), the battery pack Q21 of Embodiment 1-2A has the first and second polar convex terminals 221 as viewed in a plan view, both face up (left figure) and face down (right figure). 231 has the same shape, and the first and second polar concave terminals 222 and 232 have the same shape.
Therefore, the first polar convex terminal 221 and the second polar convex terminal 231 of the battery pack Q21 facing forward can be simultaneously fitted into the second polar concave terminal 232 and the first polar concave terminal 222 of the battery pack Q21 facing backward. As a result, an assembled battery having a closed circuit (type 1) is formed.

On the other hand, in the battery pack Q21m of Embodiment 1-2AI, as shown in FIG. 55 (A), when viewed from the front (left) and back (right), the first and second The shapes of the polar convex terminals 221m and 231m are different, and the shapes of the first and second polar concave terminals 222m and 232m are also different. Specifically, the shape of the triangle seen in a plan view is reversed 180 ° between the front side and the back side.
Therefore, the first polar convex terminal 221m and the second polar convex terminal 231m of the battery pack Q21m facing forward cannot be fitted into the second polar concave terminal 232m and the first polar concave terminal 222m of the reverse facing battery pack Q21m. As a result, an assembled battery having a closed circuit (type 1) is not formed.
Thus, in the battery holder H21m of Embodiment 1-2AI, the uneven shape of the first and second electrode terminals is such that a closed circuit (type 1) cannot be formed when two battery packs are combined.
If all the battery packs Q21m to be combined are face up, the assembled battery described in FIG. 13 or FIG. 15 can be configured.

<< Embodiment 1-2AII >>
56 is a plan view, a left side view, a front view, and a right side view showing the battery holder of Embodiment 1-2AII, and FIG. 57 is a partially omitted sectional view in which a part of the battery holder of Embodiment 1-2AII is enlarged. It is.
The battery holder H21n of the embodiment 1-2AII is substantially the same in appearance as the battery holder H21m of the embodiment 1-2AI, but is different in shape from the first polar convex terminal 221m and the second polar convex terminal 231m. The difference is that the first pole convex terminal 221n and the second pole convex terminal 231n are attached to the holder body 210n so as to be movable.
Specifically, the first polar convex terminal 221n and the second polar convex terminal 231n are attached to the holder body 210n so as to be rotatable and switchable between a pushed state and a protruding state.
Other configurations of the battery holder H21n are the same as those of Embodiment 1-2AI.

A pair of holes through which the first and second polar convex terminals 221n and 231n are inserted are formed on the right side surface of the holder body 210n. In the holder main body 210n, a convex terminal mounting portion F that holds the first and second polar convex terminals 221n and 231n is provided in the vicinity of the pair of holes on the inner surface of the right side wall so that the above-described movement is possible. It has been.
FIG. 57 shows the internal structure of the convex terminal mounting portion F on the first polar convex terminal 221n side. Hereinafter, although the 1st polar convex terminal 221n and its convex terminal attaching part F are demonstrated, the 2nd polar convex terminal 231n and its convex terminal attaching part F are also the same.
First, the first polar terminal 221n has an external shape in which the upper part of the cylinder is cut obliquely, and this point is also different from the embodiment 1-2AI. The first polar terminal 221n has an outer flange 221n ₁ at the base end.

The convex terminal mounting portion F includes a stopper mechanism Fs and a knock mechanism Fk.
The stopper mechanism Fs includes a notch s1 in which the outer periphery of each hole on the right side wall of the holder body 210n is cut out at a central angle of 90 °, and an operation piece s3 provided in a slit s2 formed in the first pole terminal 221n. And a leaf spring s4 fixed in the first polar terminal 221n and connected to the operation piece s3.
Since the operation piece s3 is always elastically pressed outward by the leaf spring s4, it fits into the notch s1. As a result, the first polar terminal 221n is positioned without being able to rotate with respect to the holder body 210n.
Further, when the user pushes the operation piece s3 with the finger into the first polar convex terminal 221n so as to be detached from the notch s1, the first polar convex terminal 221n can be rotated with respect to the holder body 210n. Thereby, the operation piece s3 can be positioned by rotating to the position of the predetermined notch s1.
In this embodiment (see FIG. 56D), the notch s1 of the stopper mechanism portion Fs is parallel to and perpendicular to the center line passing through the holder body with respect to the first pole convex terminal 221n at every center angle of 90 °. Although the case where it formed was illustrated, if it is every 90 degrees of center angles, it will not be restricted to the said direction. (The four notches s1 may be rotated at an arbitrary angle around the first pole-convex terminal 221n while maintaining a central angle of 90 °.) However, when the central notches are formed at intervals of 90 ° in the directions other than the above, The first pole-concave terminal 222n needs to be formed accordingly.

The knock mechanism Fk applies a knock mechanism of a knock ballpoint pen.
The knock mechanism Fk includes a cylindrical case k1 fixed to the inner surface of the right side wall of the holder main body 210n, a first cylindrical member k2 provided in the case k1 and holding the first polar convex terminal 221n in a rotatable state. The second cylindrical member k3 provided in the case k1 and a coil spring k5 that elastically presses the second cylindrical member k3 toward the first cylindrical member k2 via the disk k4.
In the case k1, four guide grooves k11 extending in the axial direction (of the convex terminal) are formed on the inner peripheral surface at intervals of a central angle of 90 ° in the circumferential direction, and between the adjacent guide grooves k11. Is a sawtooth step k12 having a sawtooth shape having two apexes.
The guide groove k11 may have a configuration in which three guide grooves k11 are formed at intervals of a central angle of 120 ° in the circumferential direction.

The first cylindrical member k2 is fitted with a double inner collar k21, k22 provided at an end portion on the right side wall side of the holder main body 210n, and an inner collar k21 slidably fitted to each guide groove k11 in the axial direction. And a triangular wave portion k24 provided at the end on the second cylindrical member k3 side. Further, the number of teeth of the triangular wave portion k24 is equal to twice the number of the guide grooves k11, and the peak portions are arranged in the middle in the width direction of the guide grooves k11 and in the middle between the adjacent guide grooves k11. Are provided at equal intervals in the circumferential direction. It should be noted that the outer flange 221n ₁ of the first pole convex terminal 221n is fitted between the inner flanges k21 and k22 so as to be rotatable around the axis.
The second cylindrical member k3 has a slide part k31 that is slidably fitted to each guide groove k11 in the axial direction, and the end of the slide part k31 on the first cylindrical member k2 side is one of the saw stepped part k12. There is a slope of one tooth and one of the slopes of the teeth of the triangular wave portion k24, and a triangular protrusion k31a having a parallel slope, and this protrusion k31a is in contact with the triangular wave portion k24. The slope of the protrusion k31a may be steeper than the slope of one tooth of the saw step k12 and one of the teeth of the triangular wave part k24.

In the knock mechanism Fk configured as described above, the double inner collars k21 and k22 and the triangular wave portion k24 are arranged inside the guide groove k11 and the saw stepped portion k12, and the second cylindrical member k3 is slid. The part k31 is configured to have a thickness that fits in each guide groove k11 and contacts the triangular wave part k24.
The distance in the axial direction between the valley of the saw step k12 (the recess on the right side wall side of the holder body 210n) and the peak of the protrusion k31a is the outside of the holder body 210n of the first pole convex terminal 221n. Since it is longer than the projecting dimension, the first polar terminal 221n can be completely accommodated in the holder body 210n.
In addition, if the component of knock mechanism Fk is formed of a conductive material, and the first connection member that is in electrical contact with the first pole e1 of the cell E that is not shown in the figure is brought into electrical contact with the case k1, The first pole e1 and the first pole convex terminal 221n of the unit cell E are electrically connected.

FIG. 57 shows the protruding state of the first polar convex terminal 221n by the knock mechanism Fk, and the operation of the knock mechanism Fk when it is pushed from this state is as follows.
When the user presses the first Gokutotsu terminal 221n with a finger, the inner flange k22 of the first cylindrical member k2 is pushed by the outer flange 221n ₁ of the first Gokutotsu terminal 221n. Then, the projection k31a of the second cylindrical member k3 is pushed along the guide groove k11 by the triangular wave portion k24 of the first cylindrical member k2. When the first pole protruding terminal 221n is completely pushed into the holder body 210n and further pushed, the slopes of the triangular wave portion k24 and the saw stepped portion k12 coincide. Then, the protrusion k31a changes while sliding from the triangular wave part k24 to the saw step k12, and stops at the position of the valley of the saw step k12. In this way, the first pole convex terminal 221n is switched to the pushed-in state by the knock mechanism Fk.
When the user further pushes in the first polar terminal 221n with this finger from this pushed-in state, the protrusion k31a pushed in by the triangular wave portion k24 passes over the saw step k12 while sliding, and the triangular wave portion k24 pushed in. Stop at the valley. When the pressing of the first pole convex terminal 221n is stopped, the second cylindrical member k3, the first cylindrical member k2 and the first pole convex terminal 221n are pushed by the pressing of the coil spring k5, and the protrusion k31a is a saw step. By sliding k12 into the guide groove k11, the projection state shown in FIG. 57 is switched.

FIG. 58 is a diagram for explaining an example of a battery pack assembled battery using the battery holder of Embodiment 1-2AII, and FIGS. 58 (A) to 58 (C) show the assembly order.
More specifically, FIG. 58 (A) shows a state in which the front-facing battery pack Q21n (left figure) of Embodiment 1-2AII and the back-facing battery pack Q21n (right figure) of Embodiment 1-2AII are arranged in parallel. Show. In this case, the first electrode is a positive electrode (+), and the second electrode is a negative electrode (−).
The first and second polar convex terminals 221n and 231n of one battery holder Q21n arranged in this state cannot be fitted into the second and first polar concave terminals 232n and 222n of the other battery holder Q21n. At this stage, it can be said that Embodiment 1-2AII has the same function as Embodiment 1-2AI.

FIG. 58 (B) shows a state in which the first and second polar convex terminals 221n and 231n of the front-facing battery pack Q21n of Embodiment 1-2AII are rotated by 180 °.
The first and second polar convex terminals 221n and 231n of the front-facing battery holder Q21n arranged in this state can be fitted into the second and first polar concave terminals 232n and 222n of the reverse-facing battery holder Q21n. A closed circuit (type 1) is formed.
Therefore, the second polar convex terminal 231n of the battery holder Q21n facing up is completely pushed into the inside. Thereby, as shown in FIG. 58 (C), the first pole convex terminal 221n of the battery holder Q21n facing up is fitted into the second pole concave terminal 232n of the battery holder Q21n facing down. The second pole convex terminal 231n is not fitted into the first pole concave terminal 222n of the battery holder Q21n facing backward. Since the tip of the operation piece s3 is rounded and chamfered (see FIG. 57), when the chamfered portion of the operation piece s3 of the battery holder Q21n facing up hits the left side surface of the battery holder Q21n facing down, the operation piece s3 is automatically Thus, it is pushed into the first polar convex terminal 221n. In addition, the first pole convex terminal 221n of the front battery holder Q21n is not pushed in by friction with the second pole concave terminal 232n of the back battery holder Q21n when fitted, so that the protruding state is maintained. It is configured.
As a result, it is possible to form an assembled battery in which the battery holders Q21n are straightly combined and connected in series without shifting as shown in FIG. In addition, if the first and second polar convex terminals 221n and 231n of the battery pack Q21n of Embodiment 1-2AII are rotated by 90 °, the assembled battery in which the battery holders Q21n are combined in an L shape and connected in series. Can be formed.

<< Other embodiments >>
1. The battery holder of the present invention is not only an assembled battery but also the battery pack itself so that a desired voltage, capacity, shape, size, etc. can be obtained, such as the internal structure of the holder body, the first and second connection members, etc. By changing the design and the like of the configuration and the like, it is possible to freely set the number and type of unit cells accommodated in the battery holder, the electrical connection form between the unit cells, and the like. Further, the unit cell used in the battery pack may be other than the cylindrical unit type 1 to unit type battery having the first pole and the second pole in the axial direction. What is necessary is just to design the structure of a holder main body, the structure of a 1st, 2nd connection member, etc. according to the cell to be used so that a battery pack of shape, size, etc. can be obtained.

2. In the various embodiments described above, the case where the shape of the holder main body is a rectangular parallelepiped has been exemplified, but the shape of the holder main body is not particularly limited. In the case of a battery holder having concave and convex first and second electrode terminals, the shape of the holder main body may be, for example, a cubic shape, a shape in which corners of a rectangular parallelepiped are chamfered flat or arcuate, or a cylindrical shape. Also in the case of a battery holder having planar first and second electrode terminals, the shape of the holder main body may be, for example, a cubic shape, a shape in which corners of a rectangular parallelepiped are flattened or arcuate, a cylindrical shape, or the like. In the case of a cylindrical shape, it is preferable that the portions where the planar first and second electrode terminals and the concavo-convex connecting portion are disposed are flat surfaces.

  The battery holder of the present invention can also be used as a battery holder constituting an assembled battery for power supply of electric vehicles such as electric vehicles and hybrid vehicles.

DESCRIPTION OF SYMBOLS 10 Holder main body 20 1st pole terminal 21 1st pole convex terminal 30 2nd pole terminal 31 2nd pole concave terminal 40 1st connection member 50 2nd connection member 120 1st pole surface-shaped terminal 130 2nd pole surface-shaped terminal E Single cell e1 1st pole e2 2nd pole

Claims (19)

Insulating holder main body for storing a predetermined number of unit cells, first and second electrode terminals provided on the outer surface of the holder main body so as to be insulated from each other, and the first and first extremes of the unit cell A first connection member that electrically connects the child; and a second connection member that electrically connects the second electrode and the second electrode terminal of the unit cell, wherein the first and second connection members are Contained in the holder body,
The first electrode terminal and the second electrode terminal are a plurality of holder bodies, a contact between the first electrode terminal and the second electrode terminal, a contact between the first electrode terminals, and a contact between the second electrode terminals. Two or more in the circumferential direction with respect to the centerline passing through the holder body so that one or more of the contacts can be made and both a series connection and a combination of series and parallel are possible A battery holder characterized in that a plurality of the holder main bodies, each of which is disposed at the location, and which accommodates the unit cells can be combined by electrical connection to form an assembled battery.   The battery holder according to claim 1, wherein a first electrode terminal is disposed on one surface parallel to the center line, and a second electrode terminal is disposed on another surface parallel to the one surface.   The battery holder according to claim 2, wherein the first electrode terminal and the second electrode terminal are arranged at a relative position with a center angle of 180 ° with respect to the center line.   The battery holder according to claim 1, wherein a first electrode terminal is disposed on one surface parallel to the center line, and a second electrode terminal is disposed on another surface orthogonal to the one surface.   The battery holder according to claim 4, wherein the first electrode terminal and the second electrode terminal are arranged at a relative position with a center angle of 90 ° with respect to the center line.   Two first pole terminals are symmetrically arranged on the one surface across an orthogonal plane orthogonal to the center line, and the other one is sandwiched between the orthogonal plane or another orthogonal plane parallel to the orthogonal plane. Two second pole terminals arranged symmetrically on the surface, and the distance between the two first pole terminals provided on the one surface and the two second pole terminals provided on the other surface The battery holder according to claim 2, wherein the two first electrode terminals are electrically connected to each other, and the two second electrode terminals are electrically connected to each other.   First electrode terminals are respectively disposed on a first surface parallel to the center line and a second surface orthogonal to the first surface, and a fourth surface orthogonal to the third surface and the third surface orthogonal to the second surface. A second electrode terminal is disposed on each of the surfaces, the first electrode terminals on the first surface and the second surface are electrically connected, and the second electrode terminals on the third surface and the fourth surface are electrically connected. Item 6. The battery holder according to Item 1.   The first electrode terminal on the first surface and the first electrode terminal on the second surface, the first electrode terminal on the second surface and the second electrode terminal on the third surface, the second electrode terminal on the third surface and the fourth electrode on the fourth surface. The battery according to claim 7, wherein the two-pole terminal, the second-pole terminal on the fourth surface, and the first-pole terminal on the first surface are arranged at a relative position with a center angle of 90 ° with respect to the center line. holder.   Two arbitrary first electrode terminals on the first surface, two first electrode terminals on the second surface, and two on the third surface across any orthogonal plane orthogonal to the center line. The second electrode terminals and the two second electrode terminals are arranged symmetrically on the fourth surface so that the intervals between the two terminals are equal to each other. The battery holder as described.   The first pole terminal is a first pole convex terminal, the second pole terminal is a second pole concave terminal, and the convex shape of the first pole terminal and the concave shape of the second pole terminal are shapes that can be fitted to each other. The battery holder according to any one of claims 1 to 9.   One first pole terminal and one second pole terminal are arranged on one surface parallel to the center line, and one first pole terminal and one second pole terminal are arranged on the other surface parallel to the one surface, The first electrode terminal and the second electrode terminal on the same plane are arranged symmetrically with respect to any orthogonal plane orthogonal to the center line, and the two terminals are equally spaced from each other. The first pole terminals and the second pole terminals are arranged on the same side in the center line direction, the two first pole terminals are connected to each other, and the two second pole terminals are connected to each other. The battery holder according to claim 1.   The first pole terminals, the second pole terminals, and the first pole terminal and the second pole terminal on different surfaces are arranged at a relative position with a center angle of 180 ° with respect to the center line. The battery holder as described.   One first pole terminal and one second pole terminal are arranged on one surface parallel to the center line, and one first pole terminal and one second pole terminal are arranged on the other surface orthogonal to the one surface, The first electrode terminal and the second electrode terminal on the same plane are arranged symmetrically with respect to any orthogonal plane orthogonal to the center line, and the two terminals are equally spaced from each other. The first pole terminals and the second pole terminals are arranged on the same side in the center line direction, the two first pole terminals are connected to each other, and the two second pole terminals are connected to each other. The battery holder according to claim 1.   The first pole terminals, the second pole terminals, and the first pole terminal and the second pole terminal on different surfaces are arranged at a relative position with a center angle of 90 ° with respect to the center line. The battery holder as described.   The first pole terminal on the one surface is composed of a first polar convex terminal, the first pole terminal on the other surface is composed of a first polar concave terminal, and the second pole terminal on the one surface is composed of a second polar convex terminal. The second pole terminal on the other surface is a second pole concave terminal, and the convex shape of the first pole and the second pole convex terminal and the concave shape of the first pole and the second pole concave terminal are arbitrary convex. The battery holder according to any one of claims 11 to 14, wherein the terminal and the concave terminal have a shape that can be fitted to each other.   First pole terminals on the first surface parallel to the center line, on the second surface orthogonal to the first surface, on the third surface orthogonal to the second surface, and on the fourth surface orthogonal to the third surface, respectively. And the second pole terminal are arranged one by one, and the first pole terminal and the second pole terminal on the same plane are symmetrically sandwiched between any orthogonal planes orthogonal to the center line, and each two The first electrode terminals and the second electrode terminals are arranged on the same side in the center line direction, and the four first electrode terminals are electrically connected to each other. The battery holder according to claim 1, wherein the second electrode terminals are electrically connected to each other.   The first electrode terminals on two orthogonal surfaces, the second electrode terminals on two orthogonal surfaces, and the first and second electrode terminals on two different orthogonal surfaces are connected to the center line. The battery holder according to claim 16, wherein the battery holder is disposed at a relative position with a central angle of 90 °.   The first pole terminals on the first surface and the second surface are first polar convex terminals, the second pole terminals on the first surface and the second surface are second polar convex terminals, and the third surface And the first pole terminal on the fourth surface comprises a first pole concave terminal, the second pole terminal on the third surface and the fourth face comprises a second pole concave terminal, and the first pole and the second pole convex The battery holder according to claim 16 or 17, wherein the convex shape of the terminal and the concave shape of the first and second polar concave terminals are shapes in which any convex terminal and concave terminal can be fitted to each other.   The distance between each two terminals provided on the same plane arranged in the center line direction is ½ or more of the length of the holder main body in the center line direction. The battery holder according to any one of the above.

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