JP7062338B2 - Bus bar - Google Patents

Description

The present invention relates to a bus bar.

Conventionally, there is a bus bar composed of a plurality of conductive members. Patent Document 1 discloses a technique of a vertical bus bar provided with a vertical bus bar main body and a separate spacer tab material, and the vertical bus bar main body is sandwiched between a long piece portion and a short piece portion of the spacer tab material. ing.

Japanese Unexamined Patent Publication No. 2004-343829

Here, if a liquid such as water stays between different conductive members, the electrical performance of the bus bar may be deteriorated or the bus bar may be deteriorated.

An object of the present invention is to provide a bus bar capable of suppressing liquid from staying between conductive members.

The bus bar of the present invention has a plate-shaped first conductive member having a plate-shaped first connecting portion, a main body having a terminal portion, and a plate-shaped body extending from the main body and in surface contact with the first connecting portion. A second conductive member having a second connecting portion, a leaf spring portion extending from the main body and sandwiching the first connecting portion in cooperation with the second connecting portion, and the first one. In the connection portion, the first surface, which is a surface facing the second connection portion, has a groove extending along the extending direction of the second connection portion, and the groove is the said on the first surface. It is characterized in that it extends from the inside of the region in surface contact with the second connection portion to the outside of the region.

The bus bar according to the present invention has a plate-shaped first conductive member having a plate-shaped first connecting portion, a main body having a terminal portion, and a plate-shaped first body extending from the main body and in surface contact with the first connecting portion. (Ii) A second conductive member having a connection portion, a leaf spring portion extending from the main body and sandwiching the first connection portion in cooperation with the second connection portion, is provided.

In the first connection portion, the first surface, which is a surface facing the second connection portion, has a groove extending along the extending direction of the second connection portion. The groove extends from the inside of the region in surface contact with the second connection portion on the first surface to the outside of the region. The bus bar according to the present invention has an effect that the liquid such as water can be suppressed from staying in the gap between the first connection portion and the second connection portion by having the groove for discharging the liquid.

FIG. 1 is a perspective view of a bus bar according to the first embodiment. FIG. 2 is a side view of the bus bar according to the first embodiment. FIG. 3 is an exploded perspective view of the bus bar according to the first embodiment. FIG. 4 is a front view of the first conductive member according to the first embodiment. FIG. 5 is a bottom view of the bus bar according to the first embodiment. FIG. 6 is a front view showing another example of the first conductive member. FIG. 7 is a perspective view of the bus bar according to the second embodiment. FIG. 8 is a front view of the first conductive member according to the second embodiment. FIG. 9 is a bottom view of the bus bar according to the second embodiment. FIG. 10 is a rear view of the second conductive member according to the third embodiment. FIG. 11 is a bottom view of the bus bar according to the third embodiment.

Hereinafter, the bus bar according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. In addition, the components in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

[First Embodiment]
The first embodiment will be described with reference to FIGS. 1 to 6. The present embodiment relates to a bus bar. 1 is a perspective view of the bus bar according to the first embodiment, FIG. 2 is a side view of the bus bar according to the first embodiment, FIG. 3 is an exploded perspective view of the bus bar according to the first embodiment, and FIG. A front view of the first conductive member according to the first embodiment, FIG. 5 is a bottom view of the bus bar according to the first embodiment, and FIG. 6 is a front view showing another example of the first conductive member.

The bus bar 1 of the present embodiment electrically connects a power source, an electronic component, an electric load, and the like to each other. As shown in FIGS. 1 to 3, the bus bar 1 according to the first embodiment has a first conductive member 2 and a second conductive member 3. Both the first conductive member 2 and the second conductive member 3 are formed of a conductive metal material such as copper or a copper alloy. The first conductive member 2 and the second conductive member 3 are formed by press working on a metal plate or the like. The first conductive member 2 is made of, for example, a material having a relatively lower cost than the second conductive member 3. The second conductive member 3 is formed of, for example, a material having a relatively larger elastic limit than the first conductive member 2. In the present embodiment, the first conductive member 2 is formed of copper as a raw material, and the second conductive member 3 is formed of a copper alloy as a raw material.

The bus bar 1 is housed in an electric connection box or the like mounted on a vehicle. In the bus bar 1 of the present embodiment, the first conductive member 2 is held by the holding member. The holding member that holds the first conductive member 2 is, for example, a housing of an electric connection box, a block housed inside the electric connection box, or the like. The first conductive member 2 has an engaging portion (not shown) and engages with the holding member by the engaging portion. The second conductive member 3 may be held by the holding member in place of the first conductive member 2 or in addition to the first conductive member 2.

In the following description, the longitudinal direction of the first conductive member 2 and the second conductive member 3 is referred to as the first direction L. In the bus bar 1 of the present embodiment, the two conductive members 2 and 3 are combined so that the longitudinal direction of the first conductive member 2 and the longitudinal direction of the second conductive member 3 coincide with each other. In the bus bar 1, the width direction of the first conductive member 2 and the second conductive member 3 is referred to as a second direction W. The second direction W is orthogonal to the first direction L. Further, the plate thickness direction of the first conductive member 2 and the second conductive member 3 is referred to as a third direction T. The third direction T is orthogonal to each of the first direction L and the second direction W.

The first conductive member 2 has a plate-shaped first connection portion 21. The first connecting portion 21 extends along the first direction L. The first connecting portion 21 is a portion of the first conductive member 2 that is physically and electrically connected to the second conductive member 3. The first connection portion 21 of the present embodiment is a flat plate-shaped portion having a constant width. The first conductive member 2 may have a connection portion different from that of the first connection portion 21. For example, the first conductive member 2 may have a power supply connection portion connected to a power source such as a battery. The power connection unit is connected to the power supply via, for example, an electric wire.

The second conductive member 3 has a main body 31, a second connection portion 32, and a leaf spring portion 33. The main body 31, the second connecting portion 32, and the leaf spring portion 33 are integrally formed. The second conductive member 3 is physically and electrically connected to the first conductive member 2 by sandwiching the first connecting portion 21 between the second connecting portion 32 and the leaf spring portion 33. That is, the second connection portion 32 and the leaf spring portion 33 form a holding means for holding the first connection portion 21.

As shown in FIGS. 1 and 3, the main body 31 is a flat plate-shaped component. The main body 31 has a flat plate-shaped base portion 34 and a terminal portion 35. The planar shape of the base 34 of the present embodiment is rectangular. The base 34 has a first side 34a and a second side 34b. The first side 34a and the second side 34b are sides along the longitudinal direction of the base 34. The second conductive member 3 is assembled to the first conductive member 2 so that the first side 34a and the second side 34b extend along the first direction L. In the second conductive member 3 of the present embodiment, the first side 34a and the second side 34b are parallel to each other.

The terminal portion 35 extends from the second side 34b toward the second direction W. The second conductive member 3 of the present embodiment has two terminal portions 35. The two terminal portions 35 are arranged at intervals along the first direction L. In this embodiment, a flat plate-shaped terminal is exemplified as the terminal portion 35. The terminal portion 35 may be a so-called tuning fork terminal or the like. The terminal portion 35 is connected to, for example, an electronic component, an electric load, or the like. The terminal portion 35 may be connected to another conductive member.

The second connecting portion 32 and the leaf spring portion 33 extend from the first side 34a toward the second direction W. The second connecting portion 32 is a flat plate-shaped constituent portion. The planar shape of the second connecting portion 32 is, for example, a rectangle. The second connecting portion 32 extends from the base portion 34 so that both sides of the second connecting portion 32 and both sides of the base portion 34 are located on the same surface. That is, as shown in FIG. 2, the second conductive member 3 is configured such that the base portion 34 and the second connecting portion 32 are continuous flat plates when viewed along the first direction L.

The second conductive member 3 of the present embodiment has two second connecting portions 32A and 32B. The two second connecting portions 32A and 32B are arranged with a gap along the first direction L. One second connection portion 32A is arranged at one end of the first side 34a. The other second connection portion 32B is arranged at the other end of the first side 34a. The leaf spring portion 33 extends from between the two second connecting portions 32A and 32B. A slit is formed between the leaf spring portion 33 and the two second connecting portions 32A and 32B, respectively. The slit extends along the second direction W.

The leaf spring portion 33 cooperates with the second connecting portions 32A and 32B to sandwich the first connecting portion 21. The leaf spring portion 33 has a base end portion 33a, a first bending portion 33b, an intermediate portion 33c, a second bending portion 33d, and a contact portion 33e. The base end portion 33a is a portion of the leaf spring portion 33 located on the most base end side. The base end portion 33a is formed in a flat plate shape and is connected to the base portion 34. The base end portion 33a and the base portion 34 form a continuous flat plate. That is, both sides of the base end portion 33a are located on the same surface as both sides of the base portion 34.

The first bent portion 33b is a portion connecting the base end portion 33a and the intermediate portion 33c. The first bent portion 33b is bent toward the third direction T. The intermediate portion 33c is formed in a flat plate shape and extends along the third direction T. The second bent portion 33d is a portion connecting the intermediate portion 33c and the contact portion 33e. The second bent portion 33d is bent toward the second direction W. More specifically, the second bent portion 33d is bent toward the side opposite to the base 34 side.

The contact portion 33e is a portion that comes into contact with the first connection portion 21. The contact portion 33e is formed in a flat plate shape as a whole. The leaf spring portion 33 is configured such that the contact portion 33e presses the first connecting portion 21 toward the second connecting portion 32 side. More specifically, in the leaf spring portion 33, the contact portion 33e is separated from the second connection portion 32 by inserting the first connection portion 21 between the second connection portion 32 and the contact portion 33e. Elastically deforms to. The leaf spring portion 33 sandwiches the first connecting portion 21 with the second connecting portion 32 by the elastic restoring force, and holds the first connecting portion 21 in cooperation with the second connecting portion 32. The tip portion 33f of the contact portion 33e is bent in a direction away from the second connecting portion 32.

As shown at least in FIGS. 3 and 4, the first connection 21 has a groove 22. The groove 22 is formed on the first surface 21a of both surfaces of the first connecting portion 21. The first surface 21a is a surface facing the second connection portion 32. The second surface 21b is a surface facing the contact portion 33e of the leaf spring portion 33. The groove 22 is formed at a position facing the second connecting portion 32. That is, the second conductive member 3 is assembled to the first connecting portion 21 so that the second connecting portion 32 faces the groove 22.

The first connection portion 21 of the present embodiment has a first groove 22A facing one second connection portion 32A and a second groove 22B facing the other second connection portion 32B. In the present specification, when the first groove 22A and the second groove 22B are not distinguished, the two grooves 22A and 22B are collectively referred to as "groove 22". The groove 22 extends along the second direction W. In other words, the groove 22 extends along the extending direction of the second connecting portion 32. The groove 22 of the present embodiment extends linearly.

The groove 22 is formed in at least a portion 23 facing the second connecting portion 32. The portion 23 facing the second connecting portion 32 includes the first region 23A and the second region 23B. The first region 23A is a portion of the first connection portion 21 facing the second connection portion 32A. In other words, the first region 23A is a region that comes into surface contact with one of the second connecting portions 32A. The second region 23B is a portion of the first connection portion 21 facing the other second connection portion 32B. In other words, the second region 23B is a region that comes into surface contact with the other second connection portion 32B.

The first groove 22A extends to the first region 23A. That is, the first groove 22A is a groove 22 facing one of the second connecting portions 32A. The first groove 22A extends from the inside of the first region 23A to the outside of the first region 23A along the second direction W. The second groove 22B extends to the second region 23B. That is, the second groove 22B is a groove 22 facing the other second connection portion 32B. The second groove 22B extends from the inside of the second region 23B to the outside of the second region 23B along the second direction W.

The first groove 22A and the second groove 22B of the present embodiment extend from one end to the other end of the first connection portion 21 along the second direction W. The first groove 22A and the second groove 22B are open at one end surface 21c of the first connection portion 21. Further, the first groove 22A and the second groove 22B are open at the other end surface 21d of the first connection portion 21. The bus bar 1 of the present embodiment is arranged so that the groove 22 extends along the vertical direction. More specifically, the bus bar 1 is arranged so that the end surface 21c of the first connecting portion 21 faces upward. Therefore, the end face 21c becomes the upper end face of the first connection portion 21, and the end face 21d becomes the lower end face of the first connection portion 21.

The upper end portion 24 of the first groove 22A and the second groove 22B is open upward in the upper end surface 21c. Further, the shape of the upper end portion 24 is a tapered shape in which the groove width L1 expands toward the upper side. The groove width L1 of the first groove 22A and the second groove 22B is narrower than the width L2 of the second connecting portion 32. The first groove 22A is arranged in the center of the first region 23A in the first direction L. Similarly, the second groove 22B is located in the center of the second region 23B in the first direction L. In the first groove 22A and the second groove 22B, the groove width is constant except for the upper end portion 24.

Since the bus bar 1 of the present embodiment has the groove 22, liquid such as water is unlikely to remain between the first connecting portion 21 and the second connecting portion 32. For example, dew condensation may occur and droplets may adhere to the upper end face 21c. It is conceivable that the droplets enter between the first connecting portion 21 and the second connecting portion 32. Since the first connection portion 21 and the second connection portion 32 are in surface contact with each other, it is difficult for the liquid that has entered between the first connection portion 21 and the second connection portion 32 to be discharged.

On the other hand, the bus bar 1 of the present embodiment has a groove 22. Even if a liquid enters between the first connection portion 21 and the second connection portion 32, the liquid is discharged through the groove 22. For example, the liquid is discharged through the groove 22 toward the lower end face 21d. Therefore, the bus bar 1 of the present embodiment can prevent liquid such as water from staying between the first connection portion 21 and the second connection portion 32. By making it difficult for liquids such as water to stay between the first connection portion 21 and the second connection portion 32, it is possible to improve the electrical performance of the bus bar 1 and suppress deterioration of the bus bar 1.

Further, the groove 22 can attract the droplets adhering to the upper end surface 21c. As described above, the shape of the upper end portion 24 of the groove 22 is a tapered shape in which the groove width L1 expands toward the upper side. Therefore, the droplets adhering to the upper end surface 21c are easily attracted to the groove 22. Therefore, the groove 22 of the present embodiment can prevent the liquid from entering the gap between the first connection portion 21 and the second connection portion 32. In other words, the groove 22 prevents liquid from entering the gap between the first connection portion 21 and the second connection portion 32, or the amount of liquid that enters the gap between the first connection portion 21 and the second connection portion 32. Can be reduced.

The groove 22 of the present embodiment is open to the lower end surface 21d. Therefore, the liquid inside the groove 22 is easily discharged to the space below. As a result, the groove 22 of the present embodiment can efficiently discharge the liquid that has entered the first connection portion 21 and the second connection portion 32 and the liquid that has adhered to the upper end surface 21c to the lower space.

The position and shape of the groove 22 is not limited to the illustrated position and shape. For example, the shape of the upper end portion 24 of the groove 22 does not have to be a tapered shape. As an example, as shown in FIG. 6, the groove width L3 of the upper end portion 24 may be constant. The upper end portion 24 is a widening portion. The groove width L3 of the upper end portion 24 is wider than the groove width L4 of other portions in the groove 22. The groove 22 does not have to extend to the lower end of the first connecting portion 21. If the groove 22 extends to the outside of the first region 23A and the second region 23B, the liquid that has entered between the first connection portion 21 and the second connection portion 32 is likely to be discharged through the groove 22. ..

The first connecting portion 21 may have a plurality of grooves 22 with respect to one second connecting portion 32. For example, the first connecting portion 21 may have a plurality of grooves 22 facing one of the second connecting portions 32A. The first connecting portion 21 may have a plurality of grooves 22 facing the other second connecting portion 32B.

As described above, the bus bar 1 according to the present embodiment has a first conductive member 2 and a second conductive member 3. The first conductive member 2 has a plate-shaped first connection portion 21. The second conductive member 3 has a main body 31, a second connection portion 32, and a leaf spring portion 33. The main body 31 has a terminal portion 35. The second connection portion 32 is a plate-shaped component that extends from the main body 31 and makes surface contact with the first connection portion 21. The leaf spring portion 33 extends from the main body 31 and cooperates with the second connecting portion 32 to sandwich the first connecting portion 21.

The first surface 21a of the first connecting portion 21 has a groove 22 extending along the extending direction of the second connecting portion 32. The first surface 21a is a surface of the first connection portion 21 facing the second connection portion 32. The groove 22 extends from the inside of the region (first region 23A, second region 23B) in surface contact with the second connecting portion 32 on the first surface 21a to the outside of this region. The groove 22 of the present embodiment can discharge a liquid such as water that has entered between the first connection portion 21 and the second connection portion 32, for example. Therefore, the groove 22 of the present embodiment can suppress the deterioration of the electrical performance of the bus bar 1.

Further, the groove 22 of the present embodiment extends from one end to the other end of the first connecting portion 21 along the extending direction of the second connecting portion 32. Therefore, the liquid adhering to the end surface of the first connecting portion 21 or the like is likely to be attracted to the groove 22. As a result, the groove 22 can prevent the liquid adhering to the end surface or the like of the first connecting portion 21 from entering between the first connecting portion 21 and the second connecting portion 32. Further, the groove 22 can guide the liquid to the end of the first connecting portion 21 and discharge the liquid.

The first conductive member 2 of the present embodiment is arranged so that the groove 22 extends along the vertical direction. The upper end portion 24 of the groove 22 is open upward at the upper end surface 21c of the first connecting portion 21. The shape of the upper end portion 24 is a tapered shape in which the groove width L1 expands toward the upper side. Since the upper end portion 24 of the groove 22 has a tapered shape, the liquid adhering to the upper end surface 21c is easily attracted to the groove 22. Therefore, the bus bar 1 of the present embodiment can suitably suppress the entry of liquid between the first connection portion 21 and the second connection portion 32.

[Second Embodiment]
A second embodiment will be described with reference to FIGS. 7 to 9. Regarding the second embodiment, the same reference numerals are given to the components having the same functions as those described in the first embodiment, and duplicate description will be omitted. 7 is a perspective view of the bus bar according to the second embodiment, FIG. 8 is a front view of the first conductive member according to the second embodiment, and FIG. 9 is a bottom view of the bus bar according to the second embodiment. FIG. 7 shows a perspective view of the bus bar as seen from the rear side.

As shown in FIG. 7 and the like, the first conductive member 2 according to the second embodiment has a bent portion 25 protruding toward the second surface 21b side. The bent portion 25 extends linearly along the second direction W. The bent portion 25 is formed from one end to the other end of the first connecting portion 21 along the second direction W. The cross-sectional shape of the bent portion 25 is substantially V-shaped. One bent portion 25 is formed for each of the second connecting portions 32A and 32B. The bent portion 25 is formed by bending or the like with respect to the metal plate that is the base material of the first conductive member 2.

As shown in FIGS. 8 and 9, the first surface 21a has a groove 26. The groove 26 is a groove created by processing to form the bent portion 25. In other words, the groove 26 is a recess of the bent portion 25. As shown in FIG. 8, the groove 26 extends from one end to the other end of the first connection portion 21 along the second direction W. That is, the groove 26 is open toward the second direction W in both the upper end surface 21c and the lower end surface 21d. The groove 26 is open upward in the upper end surface 21c. Further, the groove 26 is opened downward at the lower end surface 21d. The groove 26 of the present embodiment has a constant groove width L5 from the upper end to the lower end.

The groove 26 has a first groove 26A facing one second connecting portion 32A and a second groove 26B facing the other second connecting portion 32B. The first groove 26A extends from the inside to the outside of the first region 23A. The second groove 26B extends from the inside to the outside of the second region 23B. When the first groove 26A and the second groove 26B are not distinguished, the two grooves 26A and 26B are collectively referred to as "groove 26".

As shown in FIG. 9, the cross-sectional shape of the groove 26 is substantially V-shaped. The groove width of the groove 26 becomes narrower from the first surface 21a side to the second surface 21b side along the third direction T.

Similar to the groove 22 of the first embodiment, the groove 26 suppresses liquid from entering between the first connection portion 21 and the second connection portion 32, and the groove 26 suppresses the entry of liquid between the first connection portion 21 and the second connection portion 32. It is possible to prevent the liquid from staying between the 32 and the 32.

The arrangement and shape of the groove portion 26 are not limited to the above-exemplified arrangement and shape. For example, the cross-sectional shape of the groove portion 26 is not limited to the V-shape.

[Third Embodiment]
A third embodiment will be described with reference to FIGS. 10 and 11. Regarding the third embodiment, the components having the same functions as those described in the first embodiment and the second embodiment are designated by the same reference numerals, and duplicate description will be omitted. 10 is a rear view of the second conductive member according to the third embodiment, and FIG. 11 is a bottom view of the bus bar according to the third embodiment.

As shown in FIGS. 10 and 11, in the bus bar 1 according to the third embodiment, a groove 37 is formed in the second conductive member 3. The second connecting portions 32A and 32B of the second conductive member 3 each have a groove 37. The groove 37 is formed on the facing surface 36 of the second connecting portions 32A and 32B. The facing surface 36 is a surface facing the first surface 21a of the first connecting portion 21 in the second connecting portions 32A and 32B. The groove 37 extends along the extending direction of the second connecting portions 32A and 32B.

The groove 37 is formed at least in the contact region 36a. The contact region 36a is a part of the facing surface 36, and is a region in which surface contact is made with the first surface 21a. The groove 37 of the present embodiment extends from the contact region 36a to the terminal portion 35 side. That is, the groove 37 extends from the inside of the contact region 36a to the outside of the contact region 36a. Further, the groove 37 extends to the tips of the second connecting portions 32A and 32B. Therefore, as shown in FIG. 11, the groove 37 opens downward on the tip surface 38 of the second connecting portions 32A and 32B.

Similar to the groove 22 of the first embodiment and the groove 26 of the second embodiment, the groove 37 suppresses liquid from entering between the first connection portion 21 and the second connection portion 32, and the groove 37 has a second. It is possible to prevent the liquid from staying between the one connection portion 21 and the second connection portion 32.

The second conductive member 3 of the third embodiment may be combined with the first conductive member 2 of the first embodiment or the second embodiment. For example, when the first conductive member 2 of the first embodiment is combined with the second conductive member 3 of the present embodiment, the grooves 22 and 37 are provided in both the first conductive member 2 and the second conductive member 3. The grooves 22 and 37 may be arranged so as to face each other in the third direction T, or may be arranged so as to be displaced from each other in the first direction L. When the grooves 22 and 37 are arranged so as to face each other, the electrical contact area between the first conductive member 2 and the second conductive member 3 can be made as large as possible.

[Varied examples of each embodiment]
Modifications of the first to third embodiments will be described. The shapes and the like of the first conductive member 2 and the second conductive member 3 are not limited to the exemplified shapes and the like. For example, the shape of the first connection portion 21 is not limited to the exemplified shape. The shape, arrangement, and number of the second connecting portions 32 are not limited to the illustrated shapes, arrangements, and numbers. The shape, arrangement, and number of leaf spring portions 33 are not limited to the illustrated shape, arrangement, and number.

The contents disclosed in each of the above embodiments and modifications can be combined and executed as appropriate.

1 Bus bar 2 1st conductive member 3 2nd conductive member 21 1st connection part 21a: 1st surface, 21b: 2nd surface, 21c: upper end surface, 21d: lower end surface 22 groove 22A: 1st groove, 22B: Second groove 23 Part facing the second connection part 23A: First area, 23B: Second area 24 Upper end 25 Bending part 26 Groove 26A: First groove, 26B: Second groove 31 Main body 32 , 32A, 32B Second connection part 33 Leaf spring part 33a: Base end part, 33b: First bending part, 33c: Intermediate part, 33d: Second bending part, 33e: Contact part, 33f: Tip part 34 Base part 35 Terminal 36 Facing surface 36a Contact area 37 Groove L First direction W Second direction T Third direction L1, L3, L4, L5 Groove width L2 Second connection width

Claims (5)

A first conductive member having a plate-shaped first connection part,
A main body having a terminal portion, a plate-shaped second connection portion extending from the main body and in surface contact with the first connection portion, and a plate-shaped second connection portion extending from the main body and cooperating with the second connection portion. A second conductive member having a leaf spring portion that works to sandwich the first connection portion,
Equipped with
In the first connection portion, the first surface, which is a surface facing the second connection portion, has a groove extending along the extending direction of the second connection portion.
The bus bar is characterized in that the groove extends from the inside of the region in surface contact with the second connection portion on the first surface to the outside of the region. The bus bar according to claim 1, wherein the groove extends from one end to the other end of the first connection portion along the extending direction of the second connection portion. The first conductive member is arranged so that the groove extends in the vertical direction.
The upper end portion of the groove is open upward at the upper end surface of the first connection portion, and the shape of the upper end portion is a tapered shape in which the groove width increases toward the upper side. The bus bar described in 2. The second conductive member has two said second connecting portions arranged with a gap along the first side of the main body.
The bus bar according to any one of claims 1 to 3, wherein the leaf spring portion extends from between the two second connecting portions on the first side. A first conductive member having a plate-shaped first connection part,
A main body having a terminal portion, a plate-shaped second connection portion extending from the main body and in surface contact with the first connection portion, and a plate-shaped second connection portion extending from the main body and cooperating with the second connection portion. A second conductive member having a leaf spring portion that works to sandwich the first connection portion,
Equipped with
A bus bar having a surface of the second connecting portion facing the first connecting portion having a groove extending along the extending direction of the second connecting portion.

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