JP2015090831A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector that is able to prevent a mating terminal fitting from being rotated as a bolt is fastened.SOLUTION: A connector C comprises: a conductive member 20 in which a part 22 connected with a mating terminal fitting 10 has a plate form; and a housing 30 holding the conductive member 20. In the mating terminal fitting 10, a part 12 connected with the conductive member 20 is placed on one face side of the connected part 22 of the conductive member 20. A bolt is inserted into through-holes H formed in the connected parts 22, 12 of the conductive member 20 and mating terminal fitting 10 respectively, and is fastened into a screw hole formed on the other face side of the connected part 22 of the conductive member 20. Thus, in the connector C, the conductive member 20 and the mating terminal fitting 10 are electrically connected. The housing 30 is provided with a rotation stop wall 41 extending upward along a side edge of the connected part 12 of the mating terminal fitting 10.

Description

  The present invention relates to a connector.

2. Description of the Related Art Conventionally, a connector having a conductive member that is connected to a mating terminal fitting by bolting is known. In this type of connector, an insertion hole through which a bolt can be inserted is formed at a connection portion between the conductive member and the mating terminal fitting. Then, the mating terminal metal fitting is placed on one surface side of the conductive member, the bolt is inserted into the insertion hole, and tightened to the screw hole provided on the other surface side of the conductive member. Is connected.
For example, in the connector described in Patent Document 1 below, the mating terminal fitting is a bus bar, and an insertion hole is formed in the connection portion. Then, the conductive member and the bus bar are electrically connected by tightening the bolt inserted into the insertion hole of the bus bar and the insertion hole of the conductive member to the nut.

JP 2012-195069 A

  By the way, in the connector described above, since the mating terminal metal fitting is a bus bar that maintains a certain position and state, the mating terminal metal fitting is inadvertently rotated during the bolting operation. There was no risk of it occurring. However, when the mating terminal fitting is, for example, a terminal fitting connected to the terminal portion of the electric wire, the position and state of the terminal fitting are not maintained because the electric wire is not fixed, and during the bolt tightening operation There is a risk of accompanying. When the mating terminal fitting is rotated, there is a possibility that contact failure may occur due to insufficient tightening or the like.

  This invention is completed based on the above situations, Comprising: It aims at providing the connector which can prevent that the other party terminal metal fitting is accompanied with bolting.

The connector of the present invention includes a conductive member having a plate-like connection portion with a mating terminal fitting, and a housing that holds the conductive member, and a connection portion that connects to the conductive member of the mating terminal fitting is provided. The other side of the connecting portion of the conductive member is placed on one side of the connecting portion of the conductive member, and a bolt is inserted into an insertion hole formed in the connecting portion of the conductive member and the mating terminal fitting. The conductive member and the mating terminal fitting are electrically connected to each other by tightening in a screw hole provided in the housing, and the housing is provided along a side edge of the connecting portion of the mating terminal fitting. A detent wall that stands up is provided.
According to such a configuration, when the mating terminal fitting rotates, the mating terminal fitting comes into contact with the non-rotating wall, and therefore it is possible to prevent the mating terminal fitting from rotating along with the bolt tightening.

  Moreover, the said rotation prevention wall is good also as what is provided with a pair on both sides of the said other party terminal metal fitting. According to such a configuration, when the mating terminal metal fitting is rotated, it comes into contact with the detent wall provided on both sides. The received force is dispersed, so that the detent wall can be prevented from being deformed.

  Further, the detent wall may be provided with a reinforcing wall that stands substantially perpendicular to the wall surface. According to such a structure, it can prevent more reliably that a rotation stop wall deform | transforms by the force received from the other party terminal metal fitting.

The housing may be provided with a detent wall that stands along an edge of the connection portion of the mating terminal fitting.
According to such a configuration, when the mating terminal fitting tries to rotate, the side edge and the end edge abut against the rotation prevention wall, so that the housing and the mating terminal are compared with the case where only the side edge abuts. The contact area with the metal fitting is increased, and the force received from the mating terminal metal fitting is more widely dispersed, so that the contact portion of the housing with the mating terminal metal fitting can be more reliably prevented from being deformed.

  ADVANTAGE OF THE INVENTION According to this invention, the connector which can prevent that the other party terminal metal fitting rotates with bolt fastening can be provided.

The perspective view which looked at the connector in this embodiment from the front side Perspective view of the connector as seen from the back Front view showing the device side terminal fittings connected to the connector Rear view of connector Top view of connector Bottom view of connector Sectional drawing which shows the state by which the apparatus side terminal metal fitting was connected to the connector, Comprising: Sectional drawing corresponded in the cross section in the AA position of FIG. Sectional drawing which shows the state by which the apparatus side terminal metal fitting was connected to the connector, Comprising: Sectional drawing corresponded in the cross section in the BB position of FIG.

<Embodiment>
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment embodying the present invention will be described in detail with reference to FIGS.
The connector C in the present embodiment is attached to a metal case that houses a device such as a motor (not shown) and is electrically connected to a device-side terminal fitting (mating-side terminal fitting) 10 provided in the device. It is a connector for equipment.

  As shown in FIG. 7, the device-side terminal fitting 10 is fixed to a terminal portion of an electric wire 11 provided on the device side. The device-side terminal fitting 10 includes a connector connecting portion 12 connected to the connector C and a wire fixing portion 13 fixed to the terminal portion of the electric wire 11. The device-side terminal fitting 10 is bent in an L shape so that the connector connecting portion 12 and the wire fixing portion 13 are perpendicular to each other. The connector connecting portion 12 is formed with an insertion hole H through which a bolt can be inserted so as to be connected to a conductive plate (conductive member) 20 provided in the connector C by bolting.

The connector C can be connected to a power supply side connector (not shown) connected to the power supply side. The power supply side connector is provided in the terminal part of the electric wire arrange | positioned toward the case from the power supply device which supplies electric power, such as an inverter.
Hereinafter, in each component, the upper side (side to which the power supply side connector is connected) in FIG. 1 is the upper side, the lower side (side to which the device side terminal fitting 10 is connected) is the lower side, and the right front side in FIG. The front and left back side will be described as the rear.

The connector C includes a metal plate 50 that is attached and fixed to the case.
The metal plate 50 as a whole has a substantially rectangular flat plate shape extending along the outer surface of the case, and mounting holes 51 are provided at the four corners thereof. The connector C is fixedly attached to the case by inserting a fixing bolt (not shown) into the mounting hole 51 and tightening it to the case.

  At the approximate center of the metal plate 50, an opening 53 is provided through the housing 30 in the plate thickness direction (see FIG. 7). The opening 53 has a substantially rectangular shape that is long in the left-right direction. A bent portion 52 that is bent downward is formed on the outer peripheral edge of the metal plate 50.

The connector C includes a housing 30 that holds the conductive plate 20.
The housing 30 is formed integrally with the metal plate 50.
The housing 30 includes a flange portion 37 disposed along the lower surface of the metal plate 50 (see FIG. 7). The flange portion 37 has a plate shape slightly smaller than the metal plate 50 and is disposed so as to cover the peripheral edge portion of the opening 53.

  As shown in FIG. 6, an annular packing 38 is attached to the peripheral portion of the flange portion 37, and the case and the flange portion 37 are connected via the packing 38 by bolting the metal plate 50 to the case. It becomes a sealed state.

The housing 30 includes a power supply side housing 30D to which a power supply side connector is connected, and a device side housing 30K to which the device side terminal fitting 10 is connected.
As shown in FIG. 1, the power supply side housing 30 </ b> D has a box shape that is long in the left-right direction as a whole, and protrudes upward from the opening 53 of the metal plate 50. On the upper surface of the power supply side housing 30D, a connector fitting port 31 into which a power supply side connector can be fitted is opened from above.

  Inside the power supply side housing 30D, there is provided a power supply side nut housing portion 32 for housing a nut (not shown) (see FIG. 5). The three power supply side nut accommodating parts 32 are provided along with the left-right direction. A nut is press-fitted into each power supply side nut housing portion 32 in such a direction that the axis is in the front-rear direction. On the rear surface of each power supply side nut housing portion 32, a power supply side connection portion 21 of the conductive plate 20 described later is disposed.

  On the rear surface of the power supply side housing 30D, a work port 33 into which a tool or the like is inserted for performing a bolt fastening work between the conductive plate 20 and the power supply side terminal fitting is formed (see FIG. 2). The working port 33 is sized so that the power supply side connection portion 21 of the conductive plate 20 is exposed to the front. The work port 33 is closed by a cover (not shown) that is attached after the bolt is fastened.

  The device-side housing 30K is provided so as to protrude downward from the opening 53 of the metal plate 50, and is accommodated inside the case when the connector C is fixed to the case. The device-side housing 30K is provided with three device-side nut housing portions 34 for housing nuts (not shown) side by side in the left-right direction (see FIG. 6). A nut is press-fitted into each device-side nut housing portion 34 with the axis line in the front-rear direction. On the front surface of each device-side nut housing portion 34, a device-side connection portion 22 of the conductive plate 20 described later is disposed.

  The device-side housing 30K includes an insulating wall 35 that insulates an electrical connection portion on the adjacent device side. The insulating wall 35 is provided between the adjacent device side nut accommodating portions 34. The insulating wall 35 is substantially perpendicular to the plate surface of the device-side connecting portion 22 of the adjacent conductive plate 20. As shown in FIG. 7, the insulating wall 35 is sized to cover the entire device-side terminal fitting 10. The insulating wall 35 has a substantially square shape as a whole, and both front and rear corners at the lower end thereof are inclined edge portions 36 that are inclined obliquely. The insulating wall 35 protrudes rearward from the device-side nut housing portion 34.

  The device-side housing 30 </ b> K includes a first detent wall 41 and a second detent wall 42 that prevent the device-side terminal fitting 10 connected to the conductive plate 20 from being rotated. The first detent wall 41 and the second detent wall 42 will be described in detail later.

  The conductive plate 20 is formed by pressing a metal plate having good conductivity and punching it into a predetermined shape, followed by a predetermined bending process. As shown in FIG. 4, the conductive plate 20 has a shape that is long in the vertical direction as a whole. It is set as the apparatus side connection part 22 to which the terminal metal fitting 10 is connected. Further, a portion of the conductive plate 20 between the power supply side connection portion 21 and the device side connection portion 22 is an embedded portion 23 embedded in the housing 30.

The power supply side connection portion 21 and the device side connection portion 22 are respectively formed with insertion holes H through which bolts can be inserted so as to be connected to the power supply side terminal fitting and the device side terminal fitting 10 by bolting.
The embedded portion 23 is bent in a crank shape in the left-right direction, and is bent in the front-rear direction (plate thickness direction) so that the device-side connection portion 22 is located slightly in front of the power-source-side connection portion 21. (See FIG. 7).

  In the housing 30, three conductive plates 20 are held in a state of being arranged in the left-right direction. The three conductive plates 20 have the same shape. The power supply side connection portion 21 of each conductive plate 20 is disposed on the rear surface of the power supply side nut housing portion 32, and the device side connection portion 22 is disposed on the front surface of the device side nut housing portion 34. The three conductive plates 20 are arranged in a state where the positions of the power supply side connection portion 21 and the device side connection portion 22 are aligned in the front-rear direction and the vertical direction, respectively.

The device-side housing 30 </ b> K includes a first detent wall 41 and a second detent wall 42 that prevent the device-side terminal fitting 10 from being rotated.
The first detent wall 41 is a wall that stands along the side edge of the connector connecting portion 12 of the device-side terminal fitting 10. As shown in FIG. 3, three pairs of first detent walls 41 are provided so as to stand on both sides of each device-side terminal fitting 10. The pair of first detent walls 41 are provided on both sides of the device-side nut accommodating portion 34, respectively. The side wall 34 </ b> S of the device-side nut housing portion 34 is formed integrally with the inner wall surface of each first detent wall 41. An insulating wall 35 is formed integrally between the adjacent first detent walls 41.

  The first detent wall 41 protrudes to the front side of the device-side connecting portion 22 of the conductive plate 20, and this protruding portion serves as a contact portion 43 that can contact the side edge of the device-side terminal fitting 10. Yes. The dimension of the contact portion 43 in the front-rear direction is equivalent to the thickness of the connector connecting portion 12 of the device-side terminal fitting 10. The contact portion 43 is disposed along substantially the entire side edge of the connector connecting portion 12 of the device-side terminal fitting 10. A slight gap S1 is formed between the contact portion 43 and the device-side terminal fitting 10 (see FIG. 3).

  A holding projection 44 that holds the conductive plate 20 is provided between the pair of first detent walls 41. The conductive plate 20 penetrates the inside of the holding projection 44 in the vertical direction (see FIG. 7). Hereinafter, the portion of the holding projection 44 that is disposed on the front side (the side on which the device-side terminal fitting 10 is placed) 20M of the conductive plate 20 is referred to as a front holding portion 44M, and the rear side of the conductive plate 20 The portion arranged on the opposite side 20U is referred to as a rear holding portion 44U.

  The front holding portion 44M is provided so as to connect the front end edges of the pair of first detent walls 41. The front holding portion 44M extends over the conductive plate 20 more widely than the rear holding portion 44U, and the lower end of the front holding portion 44M is positioned below the lower end of the rear holding portion 44U.

  The lower end of the front holding portion 44 </ b> M constitutes a second detent wall 42 that stands along the upper end edge of the device-side terminal fitting 10. A slight gap S2 is formed between the second detent wall 42 and the device-side terminal fitting 10 (see FIG. 7). The dimension in the front-rear direction of the second detent wall 42 is the same as the plate thickness dimension of the connector connecting portion 12 of the device-side terminal fitting 10, similar to the contact portion 43 of the first detent wall 41. The second detent wall 42 and the first detent wall 41 are substantially perpendicular.

  The first detent wall 41 is provided with a reinforcing wall 45 that is substantially perpendicular to the wall surface. The reinforcing wall 45 is provided to extend in the vertical direction along the rear end edge of the first detent wall 41. The reinforcing wall 45 constitutes the rear wall of the device-side nut housing portion 34.

  As shown in FIG. 4, the lower portion 45 </ b> S of the reinforcing wall 45 is divided into left and right portions by a notch portion 46 formed upward from the lower end. The notch 46 extends from the lower end of the reinforcing wall 45 to the position of the insertion hole H of the conductive plate 20, and the upper end thereof has a semicircular shape coaxial with the insertion hole H.

  The upper portion 45U of the reinforcing wall 45 connects between the pair of first detent walls 41, and the reinforcing wall 45, the pair of first detent walls 41, and the front holding portion 44M have a closed box shape. There is no.

Next, an example of the operation | work which connects the apparatus side terminal metal fitting 10 to the above connectors C is demonstrated.
First, the connector connection portion 12 of the device-side terminal fitting 10 is placed on the front surface of the device-side connection portion 22 of the conductive plate 20. When the connector connecting portion 12 of the device-side terminal fitting 10 is disposed so as to be fitted into a recess surrounded by the pair of first detent walls 41 and second detent walls 42, the insertion hole H of the conductive plate 20 and The insertion hole H of the device-side terminal fitting 10 is coaxially connected.

  Next, the conductive plate 20 and the device-side terminal fitting 10 are connected by bolting. A bolt is inserted into the conductive plate 20 and the insertion hole H of the device-side terminal fitting 10 that are arranged in communication with each other, and the bolt is screwed into the nut accommodated in the device-side nut accommodating portion 34. At this time, when the bolt is strongly tightened with a tool, the device-side terminal fitting 10 tries to rotate by receiving a force in a strong rotational direction from the bolt. Then, the both side edges and the upper edge of the connector connecting portion 12 abut against the abutting portion 43 and the second detent wall 42 of the first detent wall 41, respectively, and the rotation of the device side terminal fitting 10 is stopped. When the bolts are sufficiently tightened, the device side connection portion 22 of the conductive plate 20 and the connector connection portion 12 of the device side terminal fitting 10 are firmly adhered. Thus, the connection work of the device side terminal fitting 10 is completed.

According to the present embodiment configured as described above, the following effects can be obtained.
The connector C of this embodiment includes a conductive plate 20 and a housing 30 that holds the conductive plate 20, and the connector connection portion 12 that connects to the conductive plate 20 of the device-side terminal fitting 10 is a device of the conductive plate 20. A bolt is placed on one side of the device-side connecting portion 22 that is connected to the side terminal fitting 10, and the insertion hole H is formed in the device-side connecting portion 22 of the conductive plate 20 and the connector connecting portion 12 of the device-side terminal fitting 10. A connector that is electrically connected to the conductive plate 20 and the device-side terminal fitting 10 by being inserted and tightened into a screw hole of a nut provided on the other surface side of the device-side connecting portion 22 of the conductive plate 20. The housing 30 is provided with a first detent wall 41 standing along the side edge of the connector connecting portion 12 of the device-side terminal fitting 10. Thereby, when the apparatus side terminal metal fitting 10 tries to rotate, since it contacts the first detent wall 41, it is possible to prevent the apparatus side terminal metal fitting 10 from being rotated with bolt tightening.

  The first detent wall 41 is provided with a pair on both sides of the device-side terminal fitting 10. As a result, when the device-side terminal fitting 10 tries to rotate, the device-side terminal fitting 10 comes into contact with the first detents 41 provided on both sides, so that the force received from the device-side terminal fitting 10 is higher than when the device-side terminal fitting 10 contacts only one side. Thus, the first detent wall 41 can be prevented from being deformed.

  The first detent wall 41 is provided with a reinforcing wall 45 that stands substantially perpendicular to the wall surface. Thereby, it is possible to more reliably prevent the first detent wall 41 from being deformed by the force received from the device-side terminal fitting 10.

  Further, the housing 30 is provided with a second detent wall 42 that stands along the upper end edge of the connector connecting portion 12 of the device-side terminal fitting 10. As a result, the contact area between the housing 30 and the device-side terminal fitting 10 is increased, so that the force received from the device-side terminal fitting 10 is more widely dispersed, so that the contact portion of the housing 30 with the device-side terminal fitting 10 is reduced. It is possible to reliably prevent deformation and the like.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above-described embodiment, the present invention has been shown for the case where the conductive member held by the housing 30 is applied to the connector C which is the conductive plate 20 having a plate shape as a whole. The present invention can also be applied to a connector in which the conductive member held in the housing 30 is plate-shaped as a whole although the connection portion with the mating terminal fitting is plate-shaped.
(2) In the above embodiment, the first detent wall 41 is provided with a pair on both sides of the device-side terminal fitting 10, but the first detent wall is not limited to this, and the first detent wall is provided on one side of the device-side terminal fitting. It may be provided only for.
(3) In the above embodiment, the first detent wall 41 is provided with the reinforcing wall 45. However, the present invention is not limited to this. For example, instead of providing the first detent wall with the reinforcing wall, the first detent wall is provided. The wall thickness may be increased.
(4) In the above embodiment, the reinforcing wall 45 provided on the first detent wall 41 is provided extending in the vertical direction. However, the present invention is not limited thereto, and for example, the reinforcing wall extends in the front-rear direction. It may be provided.
(5) In the above embodiment, the second anti-rotation wall 42 standing along the upper edge of the device-side terminal fitting 10 is provided, but the second anti-rotation wall is not necessarily provided.

C ... Connector H ... Insertion hole 10 ... Equipment side terminal fitting (mating side terminal fitting)
12 ... Connector connection part (connection part connected to the conductive member of the mating terminal fitting)
20 ... conductive plate (conductive member)
22 ... Equipment side connection part (connection part with the other party terminal metal fitting among conductive members)
30 ... Housing 41 ... First detent wall (a detent wall standing along the side edge of the connecting portion of the mating terminal fitting)
42 ... Second detent wall (detent wall standing along the edge of the connecting portion of the mating terminal fitting)
45 ... Reinforcement wall

Claims (4)

A conductive member having a plate-like connection portion with a mating terminal fitting, and a housing for holding the conductive member;
A connecting portion connected to the conductive member of the counterpart terminal fitting is placed on one surface side of the connecting portion of the conductive member, and an insertion hole formed in the connecting portion of the conductive member and the counterpart terminal fixture. By inserting a bolt and tightening to a screw hole provided on the other surface side of the connecting portion of the conductive member, the conductive member and the mating terminal metal fitting are electrically connected,
The said housing is equipped with the detent | locking wall which stands along the side edge of the connection part of the said other party terminal metal fitting.   The connector according to claim 1, wherein the detent wall is provided with a pair on both sides of the mating terminal fitting.   The connector according to claim 1, wherein the detent wall is provided with a reinforcing wall that stands substantially perpendicular to the wall surface.   The connector according to any one of claims 1 to 3, wherein the housing includes a detent wall that stands along an edge of a connection portion of the mating terminal fitting.

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