CN215070111U

CN215070111U - Battery pack and electrical apparatus

Info

Publication number: CN215070111U
Application number: CN202120972515.3U
Authority: CN
Inventors: 王良均
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-12-07
Anticipated expiration: 2031-05-08

Abstract

The utility model relates to a battery package and electrical equipment adopts two at least split type circuit boards, replaces a traditional monoblock circuit board, at the overall arrangement in-process, and the whole part of breaking up is into parts for the circuit board distributes more easily in the clearance between battery main part and shell, and the space in the make full use of shell need not additionally to increase battery package overall dimension, thereby makes the structural distribution in the battery package compacter. Simultaneously, this battery package is located at least one circuit board between battery main part and the side surface for the space between battery main part and the side surface obtains make full use of, avoids all circuit boards all to set up in other positions in the shell and leads to the grow of battery package overall dimension.

Description

Battery pack and electrical apparatus

Technical Field

The utility model relates to a battery technology field especially relates to battery package and electrical equipment.

Background

With the rapid development of power supply technology, a large number of mobile charging devices with different models appear on the market. The charging device can supply power to the tool through the electric tool interface, and can also supply power to 3C electronic products (such as mobile phones, notebook computers and the like) through typeC or USB interfaces.

However, the conventional charging device generally has the problem of unreasonable design/layout of the PCB board, which results in a larger overall size of the charging device, thereby causing inconvenience in carrying and seriously affecting the use performance of the charging device.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a battery pack and an electrical device that are compact and portable.

A battery pack mateable with an electrical device along a mating direction, the battery pack comprising: a housing, a surface of the housing that is mated with the electrical device being a main surface, a surface of the housing that is disposed perpendicular to the main surface being a side surface; the battery body is arranged in the shell and comprises a plurality of battery cores which are electrically connected with each other; the plug part comprises a first plug part for plugging the electrical equipment and a second plug part for plugging the 3C electronic product; and at least one circuit board is positioned between the battery main body and the side surface and is electrically connected with the first insertion part and the second insertion part.

Foretell battery package adopts two at least split type circuit boards, replaces a traditional monoblock circuit board, at the overall arrangement in-process, and the whole is broken into parts for the circuit board distributes more easily in the clearance between main battery body and shell, and the space in the make full use of shell need not additionally to increase battery package overall dimension, thereby makes the structural distribution in the battery package compacter. Simultaneously, this battery package is located at least one circuit board between battery main part and the side surface for the space between battery main part and the side surface obtains make full use of, avoids all circuit boards all to set up other position in the shell and lead to the grow of battery package overall dimension. So, through to plug-in connection portion and circuit board rational arrangement, be favorable to realizing that the battery package is small and exquisite, compactification, the user of being convenient for easily carries to promote the performance of product.

In one embodiment, all of the circuit boards are located between the battery body and the side surfaces.

In one embodiment, at least a part of the circuit board extends along the side surface, and another part of the circuit board extends along the main surface or along a surface of the housing facing away from the main surface.

In one embodiment, at least two of the circuit boards are divided into a first circuit board and a second circuit board, the first circuit board is located between the battery main body and the side surface, the second circuit board is located between the battery main body and the main surface and extends along the main surface, and the first insertion part and the second insertion part are both arranged on a side surface of the first circuit board, which faces away from the battery main body.

In one embodiment, the number of the first circuit boards is two or more, and at least two first circuit boards are stacked at intervals between the battery main body and the side surface.

In one embodiment, the first circuit board and the second circuit board are arranged perpendicular to each other.

In one embodiment, the circuit board comprises at least one of a rigid circuit board, a flexible circuit board, or a flex-rigid circuit board.

In one embodiment, the second mating portion is provided with a first socket, which is arranged towards the side surface.

In one embodiment, the first socket part includes a pole piece electrically connected to the circuit board, the pole piece extending in a direction toward the side surface.

In one embodiment, the number of the first insertion parts is two or more, the two or more first insertion parts are arranged at intervals on the circuit board, and the second insertion part is located between two adjacent first insertion parts.

An electrical apparatus includes an apparatus main body and the battery pack described above, the apparatus main body being electrically connected to the first insertion part.

Foretell electrical equipment adopts above battery package, adopts two at least split type circuit boards, replaces a traditional monoblock circuit board, at the overall arrangement in-process, and the whole is broken into parts for the circuit board distributes more easily in the clearance between main battery body and shell, and the space in the make full use of shell need not additionally to increase battery package overall dimension, thereby makes the structural distribution in the battery package compacter. Meanwhile, at least one circuit board is arranged between the battery main body and the side surface of the battery pack, so that the space between the battery main body and the side surface is fully utilized, and the phenomenon that the whole size of the battery pack is increased due to the fact that all the circuit boards are arranged below the side surface is avoided. So, through to plug-in connection portion and circuit board rational arrangement, be favorable to realizing that the battery package is small and exquisite, compactification, the user of being convenient for easily carries to promote the performance of product.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a battery pack configuration according to one embodiment;

FIG. 2 is an exploded view of a battery pack configuration according to one embodiment;

FIG. 3 is a schematic diagram of a cell body structure according to an embodiment;

FIG. 4 is a cross-sectional view of a battery pack configuration according to an embodiment;

FIG. 5 is a cross-sectional view of a battery pack configuration according to an embodiment;

FIG. 6 is a cross-sectional view of a battery pack configuration with two rigid circuit boards according to one embodiment;

FIG. 7 is a cross-sectional view of a battery pack configuration with three rigid circuit boards according to one embodiment;

FIG. 8 is a cross-sectional view of a battery pack configuration having three rigid circuit boards, according to an embodiment;

fig. 9 is a cross-sectional view of a battery pack structure having a flexible circuit board according to an embodiment;

fig. 10 is a cross-sectional view of a battery pack structure having flexible and rigid circuit boards according to one embodiment.

100. A battery pack; 110. a housing; 111. an opening; 112. a major surface; 113. a side surface; 114. a matching groove; 120. a battery main body; 121. a battery cell; 130. a plug-in part; 131. a socket; 1311. a second socket; 132. pole pieces; 133. a first insertion part; 134. a second insertion part; 1341. a first socket; 140. a circuit board; 141. a first circuit board; 142. a second circuit board.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, referring to fig. 1, fig. 2 and fig. 3, a battery pack 100 capable of being coupled to an electrical device along a coupling direction includes: a housing 110, a battery body 120, a plug part 130 and a circuit board 140. One surface of the housing 110 that mates with the electrical device is a major surface 112. The surface of the case 110 disposed perpendicular to the major surface 112 is a side surface 113, and the battery body 120 is mounted in the case 110, and the battery body 120 includes a plurality of battery cells 121 electrically connected to each other. The insertion part 130 includes a first insertion part 133 for inserting the electrical device and a second insertion part 134 for inserting the 3C electronic product. The number of the circuit boards 140 is two or more, and at least one circuit board 140 is located between the battery body 120 and the side surface 113 and electrically connects the first inserting part 133 and the second inserting part 134.

The battery pack 100 adopts at least two split circuit boards 140 instead of a whole traditional circuit board 140, and in the layout process, the whole circuit board 140 is broken into parts, so that the circuit board 140 is more easily distributed in the gap between the battery main body 120 and the shell 110, the space in the shell 110 is fully utilized, the overall size of the battery pack 100 does not need to be additionally increased, and the structural distribution in the battery pack 100 is more compact. Meanwhile, in the battery pack 100, at least one circuit board 140 is located between the battery main body 120 and the side surface 113, so that the space between the battery main body 120 and the side surface 113 is fully utilized, and the problem that the overall size of the battery pack 100 is increased due to the fact that all the circuit boards 140 are arranged below the main surface 112 is avoided. Thus, the plug-in part 130 and the circuit board 140 are reasonably arranged, so that the battery pack 100 is small and compact, and is convenient for a user to carry easily, and the use performance of the product is improved.

It should be noted that the first plug-in part 133 is plugged into an electrical device (e.g., a tool such as a lawn mower, a hair dryer, a hand-held electric saw, etc.), and the interface type thereof may be designed as a socket 131 with a built-in reed, etc. Meanwhile, when the second connector 134 is used with a 3C electronic product, the second connector 134 may be designed as a socket 131, for example: type-C interface, USB interface, DC interface, etc.; and may also be designed as a plug.

It should be noted that the mating direction is understood to be a plugging direction formed by plugging the battery pack 100 to the electrical device so that the pole piece 132 of the plugging portion 130 is electrically connected to the corresponding element of the electrical device. To facilitate understanding of the mating direction of the present embodiment, taking fig. 3 as an example, the mating direction is S in fig. 3₁The direction indicated. Meanwhile, the housing 110 coupled with the electrical device should be understood as: when the battery pack 100 is plugged onto an electrical device in a mating direction, a surface (i.e., the main surface 112) of the housing 110 and the electrical device have a mating structure therebetween, so that the two are mated. For example: referring to fig. 1 and 2, a surface (i.e., the main surface 112) of the housing 110 is provided with a mating groove 114, and the electrical device is provided with a mating protrusion that is matched with the mating groove 114. At this time, the mating direction is parallel to the main surface 112.

In addition, the flat shape of the housing 110 has various designs, such as: the housing 110 may be, but is not limited to, a flat rectangular parallelepiped, a pentagonal prism, a hexagonal prism, or the like.

Specifically, in the present embodiment, the side surface 113 is provided with an opening 111, and the opening 111 is disposed opposite to the first insertion part 133 and the second insertion part 134. In addition, the relative position relationship between the first insertion part 133 and the second insertion part 134 and the opening 111 may be: the first and

second mating parts

133 and 134 are both located within the housing 110, but do not extend into the opening 111; alternatively, the first mating part 133 and the second mating part 134 both extend into the opening 111, but do not extend out of the housing 110 from the opening 111; alternatively, the first mating member 133 and the second mating member 134 may extend from the opening 111 to the housing 110. In addition, the number of the openings 111 may be one or more. When the number of the openings 111 is one, the first and

second insertion parts

133 and 134 share the same opening 111.

Further, referring to fig. 6, 7 and 9, all the circuit boards 140 are located between the battery main body 120 and the side surface 113. Therefore, the circuit board 140 of the present embodiment is disposed on the lateral side of the battery main body 120.

In another embodiment, referring to fig. 4, at least a portion of the circuit board 140 extends along the side surface 113. Another portion of circuit board 140 extends along major surface 112 or along a surface of housing 110 opposite major surface 112. It can be seen that a portion of the circuit board 140 of the present embodiment is located between the battery main body 120 and the side surface 113, and another portion is located between the battery main body 120 and the main surface 112 or a side surface of the casing 110 opposite to the main surface 112.

It should be noted that the circuit boards 140 between the battery main body 120 and the side surfaces 113 may be disposed together in the same lateral direction of the battery main body 120, or may be disposed in different lateral directions of the battery main body 120. In addition, when the circuit board 140 is laterally disposed, the circuit board 140 can be prevented from approaching the positive and negative ends of the battery main body 120 as much as possible. Of course, in other embodiments, the laterally disposed circuit board 140 does not necessarily need to be disposed to avoid the positive and negative ends of the battery main body 120.

Further, referring to fig. 4, the at least two circuit boards 140 are divided into a first circuit board 141 and a second circuit board 142. The first circuit board 141 is located between the battery main body 120 and the side surface 113, and the second circuit board 142 is located between the battery main body 120 and the main surface 112 and is disposed to extend along the main surface 112. That is to say that: the first circuit board 141 extends along the side surface 113. The second circuit board 142 is disposed extending along the main surface 112. The first mating portion 133 and the second mating portion 134 are disposed on a side of the first circuit board 141 facing away from the battery main body 120. In this way, the circuit board 140 is disposed in different positions in the housing 110, so that the effective space in the housing 110 is fully utilized on the premise of satisfying reasonable circuit supply, and the overall structure of the battery pack 100 is more compact.

It should be noted that the number of the first circuit boards 141 may be one, two, three or more. When the number of the first circuit boards 141 is two or more, the two or more first circuit boards 141 are disposed between the battery main body 120 and the side surface 113 in a dispersed manner, or may be stacked. Likewise, the number of the second circuit boards 142 may be one, two, three, or more. When there are two or more second circuit boards 142, the two or more second circuit boards 142 may be arranged between the battery main body 120 and the main surface 112 in a scattered and tiled manner, or may be stacked.

In one embodiment, referring to fig. 6 and 7, the number of the first circuit boards 141 is two or more. At least two first circuit boards 141 are stacked at intervals between the battery body 120 and the side surface 113. Therefore, the first circuit boards 141 can be separated by the interval stacking arrangement, short circuit caused by respective contact is avoided, and stable circuit operation is ensured; the space occupied by the two or more first circuit boards 141 in the housing 110 can be effectively reduced, and the compactness of the battery pack 100 can be further improved.

In one embodiment, referring to fig. 4, the first circuit board 141 and the second circuit board 142 are disposed perpendicular to each other, so that the first circuit board 141 and the second circuit board 142 are more reasonably and regularly arranged in the housing 110.

In one embodiment, referring to fig. 8 to 9, the circuit board 140 includes at least one of a rigid circuit board 140, a flexible circuit board 140, or a flex-rigid circuit board 140; that is, the first circuit board 141 and the second circuit board 142 may be at least one of a rigid circuit board 140, a flexible circuit board 140, or a flex-rigid circuit board 140. For example: referring to fig. 6 to 8, when the first circuit board 141 is the rigid circuit board 140, the number of the first circuit boards 141 is two or three, and the two or three first circuit boards 141 may be located on the same side of the battery main body 120 side by side; alternatively, one first circuit board 141 is located at one side of the battery main body 120, and the other or the other two are located at the other side of the battery main body 120. Referring to fig. 9 and 10, when the first circuit board 141 is a flexible or flex-rigid circuit board 140, the first circuit board 141 can be folded into multiple sections and co-located on the same side of the battery main body 120, so as to reduce the space occupied by the first circuit board 141. When the first circuit board 141 is a rigid circuit board 140 and a flexible or rigid-flex circuit board 140, the rigid circuit board 140 may be disposed on one side of the battery main body 120, and the flexible or rigid-flex circuit board 140 may be disposed on the other side of the battery main body 120.

It should be noted that the rigid circuit board 140 is made of a phenolic paper laminated board, an epoxy paper laminated board, a polyester glass mat laminated board, an epoxy glass cloth laminated board, and the like through lamination. The flexible printed circuit board 140 is a printed circuit board 140 made of polyimide or polyester film as a base material and having high reliability and high flexibility. While flex-rigid circuit board 140 is formed by bonding a portion of rigid circuit board 140 and a portion of flexible circuit board 140 by a press-fit technique.

In one embodiment, referring to fig. 3, the second inserting portion 134 is provided with a first inserting hole 1341. The first receptacle 1341 is disposed toward the side surface 113. When the 3C electronic product needs to be connected, the corresponding pole piece 132 of the 3C electronic product can be inserted into the first socket 1341 through the opening 111, so that the 3C electronic product and the battery pack 100 are electrically connected. The first inserting hole 1341 may have a circular shape, a square shape, an oval shape, or the like.

In one embodiment, referring to fig. 3 and 5, the number of the first plugging portions 133 is two or more. The two or more first connectors 133 are spaced apart from each other on the circuit board 140. The second mating portion 134 is located between two adjacent first mating portions 133.

Of course, in other embodiments, the positional relationship between the first insertion part 133 and the second insertion part 134 may also be distributed in other manners, such as: the first plug-in part 133 and the second plug-in part 134 are arranged separately, that is, the first plug-in part 133 is arranged in one row or one side, and the second plug-in part 134 is arranged in one row or one side; alternatively, the first insertion parts 133 and the second insertion parts 134 are alternately arranged in sequence at intervals, and the like.

In one embodiment, referring to fig. 3 and fig. 4, the first inserting portion 133 includes a pole piece 132 electrically connected to the circuit board 140, and the pole piece 132 extends along the direction toward the side surface 113, so that the power supply connection of the electrical device can be completed by inserting the corresponding pole piece 132 of the electrical device onto the pole piece 132.

Further, referring to fig. 4, the plug part 130 further includes a socket 131. The socket 131 is provided with a second jack 1311. The opening direction of the second insertion hole 1311 is perpendicular to the side surface 113, and the pole piece 132 is fitted into the second insertion hole 1311. Therefore, the socket 131 of the present embodiment is disposed horizontally with respect to the housing 110, which is convenient for a user to plug the electric device on the pole piece 132 in a horizontal plug manner.

Alternatively, the receptacle 131 may be mounted in the housing 110 by bolting, snapping, riveting, pinning, welding, bonding, or other means of attachment.

In one embodiment, please refer to fig. 1, an electrical apparatus includes an apparatus body and the battery pack 100 in any of the above embodiments. The apparatus main body is electrically connected to the first socket 133.

The electrical equipment adopts the battery pack 100, adopts the at least two split type circuit boards 140 to replace the traditional whole circuit board 140, and in the layout process, the whole circuit board 140 is broken into parts, so that the circuit board 140 is more easily distributed in the gap between the battery main body 120 and the shell 110, the space in the shell 110 is fully utilized, the overall size of the battery pack 100 does not need to be additionally increased, and the structural distribution in the battery pack 100 is more compact. Meanwhile, in the battery pack 100, at least one circuit board 140 is located between the battery main body 120 and the side surface 113, so that the space between the battery main body 120 and the side surface 113 is fully utilized, and the problem that the overall size of the battery pack 100 is increased due to the fact that all the circuit boards 140 are arranged in other positions in the housing 110 is avoided. Thus, the plug-in part 130 and the circuit board 140 are reasonably arranged, so that the battery pack 100 is small and compact, and is convenient for a user to carry easily, and the use performance of the product is improved.

Alternatively, the device body may be a mower, a blower, a hand-held power saw, or the like; but also household appliances such as vacuum cleaners.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A battery pack capable of being mated with an electrical device along a mating direction, the battery pack comprising:

a housing, one surface of the housing, which is mated with the electrical equipment, being a main surface, and a surface of the housing, which is arranged perpendicular to the main surface, being a side surface;

the battery body is arranged in the shell and comprises a plurality of battery cores which are electrically connected with each other;

the plug part comprises a first plug part for plugging the electrical equipment and a second plug part for plugging the 3C electronic product;

and at least one circuit board is positioned between the battery main body and the side surface and is electrically connected with the first insertion part and the second insertion part.

2. The battery pack of claim 1, wherein all of the circuit boards are located between the battery body and the side surfaces.

3. The battery pack of claim 1, wherein at least a portion of the circuit board extends along the side surface and another portion of the circuit board extends along the major surface or along a surface of the housing opposite the major surface.

4. The battery pack according to claim 3, wherein at least two of the circuit boards are a first circuit board and a second circuit board, the first circuit board is located between the battery main body and the side surface, the second circuit board is located between the battery main body and the main surface and extends along the main surface, and the first insertion part and the second insertion part are both disposed on a side surface of the first circuit board facing away from the battery main body.

5. The battery pack according to claim 4, wherein the number of the first circuit boards is two or more, and at least two of the first circuit boards are stacked at intervals between the battery main body and the side surface; and/or the presence of a gas in the gas,

the first circuit board and the second circuit board are vertically arranged.

6. The battery pack of any of claims 1-5, wherein the circuit board comprises at least one of a rigid circuit board, a flexible circuit board, or a flex-rigid circuit board.

7. The battery pack of claim 1, wherein the second mating portion has a first receptacle disposed thereon, the first receptacle being disposed toward the side surface.

8. The battery pack according to claim 1, wherein the first insertion part includes a pole piece electrically connected to the circuit board, the pole piece extending in a direction toward the side surface.

9. The battery pack according to claim 1, wherein the number of the first insertion parts is two or more, the two or more first insertion parts are spaced apart from each other on the circuit board, and the second insertion part is located between two adjacent first insertion parts.

10. An electrical apparatus comprising an apparatus body and the battery pack according to any one of claims 1 to 9, wherein the apparatus body is electrically connected to the first connector.