JP7409243B2 - connector - Google Patents

Description

TECHNICAL FIELD This disclosure relates to connectors.

Patent Document 1 describes a conventional connector. This connector is attached to the motor case. This connector includes a conductive member connected to an inverter-side conductive member and a motor-side conductive member, respectively. The conductive member of this connector electrically connects the conductive member on the inverter side and the conductive member on the motor side.

Japanese Patent Application Publication No. 2013-110817

Due to manufacturing tolerances in the inverter, connector, and motor, and shrinkage and deformation of resin parts after manufacturing, there is a risk that relative positional deviation may occur between the conductive members on the connector side and the conductive members on the inverter side that are connected to each other. there were. If a positional shift occurs between the conductive member on the connector side and the conductive member on the inverter side, the ease of assembling the inverter and the connector will deteriorate.

Therefore, it is an object of the present invention to provide a connector that can suppress deterioration in assemblability.

A connector of the present disclosure is a connector that is attached to a motor case to which an inverter is attached, and is electrically connected to an inverter-side conductive member of the inverter, and includes a first conductive member that is conductive, and a first conductive member that is conductive. and a housing made of resin surrounding the first conductive member, the first conductive member having a first connection portion exposed from the housing, and the second conductive member having a , a synthetic resin member that partially covers the surface of the second conductive member is not provided, and the second conductive member is connected to a second connecting portion disposed at one end of the second conductive member. , a third connecting portion disposed at the other end of the second conductive member, the third connecting portion is connectable to the inverter side conductive member, and the second connecting portion is , connected to the first connection section.

Further, the connector of the present disclosure is a connector that is attached to a motor case to which an inverter is attached and is electrically connected to an inverter-side conductive member of the inverter, the connector including a first conductive member that is conductive, and a conductive member that is electrically conductive. a synthetic resin housing that surrounds the first conductive member; and a synthetic resin covering member that surrounds the second conductive member, and the first conductive member the second electrically conductive member has a first connection portion exposed from the second electrically conductive member; a third connecting part disposed on the inverter side, the second connecting part and the third connecting part are exposed from the covering member, and the covering member is a fixed part fixed to the inverter side. The third connection portion is connectable to the inverter-side conductive member, and the second connection portion is connected to the first connection portion.

According to the present disclosure, it is possible to provide a connector that can suppress deterioration in assemblability.

FIG. 1 is a perspective view of a connector according to an embodiment. FIG. 2 is a front view of the same type of connector. FIG. 3 is a bottom view of the same type of connector. FIG. 4 is a top view of a connector of the same type. FIG. 5 is a sectional view taken along line 5-5 in FIG. FIG. 6 is an enlarged cross-sectional view showing a connecting portion between the first conductive member and the second conductive member. FIG. 7 is a partial cross-sectional view showing the state in which the same type of connector is used. FIG. 8 is a front view of a modified example connector. FIG. 9 is a diagram for explaining a modified example of the connector, and is a partial cross-sectional view showing how the connector is used. FIG. 10 is a front view of a modified example connector.

[Description of embodiments of the present disclosure]
First, embodiments of the present disclosure will be listed and described.
The connector of the present disclosure includes:
[1] A connector attached to a motor case to which an inverter is attached and electrically connected to an inverter-side conductive member of the inverter, the connector comprising a first conductive member having conductivity and a second conductive member having conductivity. a conductive member; and a housing made of resin that surrounds the first conductive member, the first conductive member having a first connection portion exposed from the housing, and the second conductive member having a resin housing surrounding the first conductive member. A synthetic resin member that partially covers the surface of the second conductive member is not provided, and the second conductive member has a second connecting portion disposed at one end of the second conductive member and a second connecting portion disposed at one end of the second conductive member. and a third connection portion disposed at the other end of the second conductive member, the third connection portion being connectable to the inverter side conductive member, and the second connection portion being connected to the second conductive member. 1 connection.

According to this configuration, in the connector, the second conductive member that is separate from the first conductive member is connected to the inverter-side conductive member. That is, the second conductive member that relays between the first conductive member and the inverter-side conductive member can absorb the positional shift between the first conductive member and the inverter-side conductive member. As a result, it becomes possible to suppress deterioration in the ease of assembling the connector.

The connector of the present disclosure includes:
[2] A connector attached to a motor case to which an inverter is attached and electrically connected to an inverter-side conductive member of the inverter, the connector comprising a first conductive member having conductivity and a second conductive member having conductivity. A conductive member, a housing made of synthetic resin that surrounds the first conductive member, and a covering member made of synthetic resin that surrounds the second conductive member, and the first conductive member includes a first conductive member exposed from the housing. The second conductive member has a second connection portion disposed at one end of the second conductive member, and a second conductive member disposed at the other end of the second conductive member. 3 connection parts, the second connection part and the third connection part are exposed from the covering member, and the covering member has a fixing part fixed to the inverter side. First, the third connection part can be connected to the inverter-side conductive member, and the second connection part is connected to the first connection part.

According to this configuration, in the connector, the second conductive member that is separate from the first conductive member is connected to the inverter-side conductive member. That is, the second conductive member that relays between the first conductive member and the inverter-side conductive member can absorb the positional shift between the first conductive member and the inverter-side conductive member. As a result, it becomes possible to suppress deterioration in the ease of assembling the connector.

[3] A plurality of the first conductive members are provided, a plurality of the second conductive members are provided corresponding to each of the plurality of first conductive members, and the covering member connects the plurality of second conductive members to each other. The plurality of second conductive members are surrounded in a connected manner.

According to this configuration, it is possible to configure the plurality of second conductive members as one component using the covering member. Therefore, even though the configuration uses a plurality of second conductive members, it is possible to suppress complication of parts management and deterioration of assembly workability.

[4] A connecting member that connects the first connecting portion of the first conductive member and the second connecting portion of the second conductive member, the first connecting portion having a first connecting portion passing through the first connecting portion. 1 through hole, the second connecting part has a second through hole penetrating the second connecting part, and the connecting member has a bolt passing through the first through hole and the second through hole. , and a nut connected to the bolt, and the first connecting portion and the second connecting portion are fixed to each other by tightening the bolt and the nut.

According to this configuration, the second conductive member is aligned with respect to the inverter side conductive member while the bolts and nuts that fix the first conductive member and the second conductive member are loosened, and after the positioning, , it becomes possible to fix the first conductive member and the second conductive member by tightening the bolt and nut.

[5] The bolt has a shaft portion passing through the first through hole and the second through hole, and the outer diameter dimension of the shaft portion is equal to the inner diameter dimension of the first through hole and the second through hole. The inner diameter of the second through hole is larger than the inner diameter of the first through hole.

According to this configuration, a gap is created between the second through hole of the second conductive member and the shaft portion of the bolt. As a result, the position of the second conductive member can be adjusted in the direction perpendicular to the shaft portion while the shaft portion of the bolt passes through the first through hole of the first connection portion and the second through hole of the second connection portion. It becomes possible.

[6] The second conductive member has a bent portion between the second connection portion and the third connection portion.
According to this configuration, by using the second conductive member having a bent portion, it becomes possible to correspond to specifications of various inverters and connectors. As a result, it is possible to improve the degree of freedom in designing the path from the first conductive member to the inverter-side conductive member.

[7] There are a plurality of first conductive members, there are a plurality of second conductive members corresponding to each of the plurality of first conductive members, and at least one of the plurality of second conductive members is , the shape is different from the other second conductive members.

According to this configuration, by using at least one second conductive member having a shape different from the others, it becomes possible to correspond to the specifications of various inverters and connectors. As a result, it is possible to improve the degree of freedom in designing the path from the first conductive member to the inverter-side conductive member.

[8] There is a plurality of the first conductive members, there is a plurality of the second conductive members corresponding to each of the plurality of first conductive members, and each of the plurality of second conductive members has the same shape as each other. is doing. According to this configuration, each of the plurality of second conductive members becomes a common component. Therefore, even though the configuration uses a plurality of second conductive members, it is possible to suppress complication of parts management and deterioration of assembly workability.

[Details of embodiments of the present disclosure]
Specific examples of the connector of the present disclosure will be described below with reference to the drawings. In each drawing, a part of the configuration may be exaggerated or simplified for convenience of explanation. In this specification, "parallel" and "orthogonal" include not only strictly parallel and orthogonal cases, but also approximately parallel and orthogonal cases within the range where the functions and effects of this embodiment can be achieved. In addition, "flat plate shape" and "cylindrical shape" in this specification include shapes with chamfered corners and ridges, shapes with rounded corners and ridges, and parts or all of the surfaces constituting the shape. This also includes shapes in which unevenness is formed on the surface.

The X axis of the mutually orthogonal XYZ axes in the drawing represents the width direction X of the connector 10, the Y axis represents the depth direction Y of the connector 10, and the Z axis represents the height direction Z of the connector 10. In the following explanation, for convenience, one side of the connector 10 in the height direction Z may be expressed as the "upper" side and the opposite side as the "lower" side, but the upper side in the height direction Z is the top direction. This does not mean that the connector 10 is mounted on the vehicle in an orientation facing toward the vehicle, and the expressions "upper" and "lower" do not limit the mounting orientation of the connector 10 on the vehicle.

As shown in FIGS. 1 to 7, the connector 10 of this embodiment includes a plate 20, a terminal unit 31 including a first conductive member 30, and second conductive members 40a and 40b connected to the first conductive member 30. , 40c, and a connecting member 50 that connects the first conductive member 30 and the second conductive members 40a, 40b, 40c.

(Connector configuration)
Connector 10 is fixed to motor case 11 shown in FIG. 7 by plate 20. The motor case 11 is, for example, a case of a three-phase motor mounted on a vehicle. An inverter 12 is assembled in the motor case 11 to supply three-phase AC power to the three-phase motor. The connector 10 electrically connects the three-phase motor and the inverter 12, and the three-phase AC power is supplied from the inverter 12 to the three-phase motor via the connector 10. The second conductive members 40a, 40b, and 40c of the connector 10 are connected to the inverter-side conductive member 13 of the inverter 12. The inverter-side conductive member 13 is provided inside the inverter 12, for example.

(Plate composition)
As shown in FIG. 1, the plate 20 of the connector 10 has a flat plate shape. The plate 20 is, for example, a flat plate made of metal. As shown in FIGS. 2 and 5, the plate 20 has a first main surface 21 and a second main surface 22 facing oppositely to each other. The plate 20 has, for example, one opening 23 and two fixing holes 24. The opening 23 penetrates the plate 20 in the thickness direction from the first main surface 21 to the second main surface 22 of the plate 20. Each fixing hole 24 penetrates the plate 20 in the thickness direction from the first main surface 21 to the second main surface 22 of the plate 20.

As shown in FIG. 7, the plate 20 is fixed to the motor case 11 so that the second main surface 22 side faces the motor case 11 side. Further, in a state where the plate 20 is fixed to the motor case 11, the first main surface 21 of the plate 20 faces the inverter 12 side.

The plate 20 is formed, for example, by punching a metal plate into a predetermined shape by press working. The opening 23 and each fixing hole 24 are formed at the same time when the plate 20 is formed. Note that the plate 20 may have a shape having a convex portion or a concave portion on at least one of the first main surface 21 and the second main surface 22, depending on the shape of the motor case 11, for example.

(Configuration of terminal unit)
The terminal unit 31 is fixed to the opening 23 of the plate 20. The terminal unit 31 includes a housing 32 fixed to the opening 23 of the plate 20 and a first conductive member 30 held by the housing 32.

(Configuration of first conductive member)
The first conductive member 30 has conductivity. The first conductive member 30 is made of, for example, a copper-based or aluminum-based metal material. The first conductive member 30 has, for example, a flat plate shape. The first conductive member 30 is formed, for example, by punching a metal plate into a predetermined shape by press working. The first conductive member 30 has an extending band shape. The first conductive member 30 of this embodiment extends, for example, along the height direction Z.

As shown in FIG. 5, the first conductive member 30 has a first surface 30a and a second surface 30b facing oppositely to each other. The first surface 30a and the second surface 30b are main surfaces of the first conductive member 30 having a flat plate shape, and are parallel to each other. The first conductive member 30 is arranged such that the first surface 30a and the second surface 30b are perpendicular to the depth direction Y, for example.

The first conductive member 30 has a first connecting portion 33 disposed at one end of the first conductive member 30 in the length direction. The first connecting portion 33 is a portion connected to the second conductive members 40a, 40b, and 40c. The first connecting portion 33 has a first through hole 33a that penetrates the first connecting portion 33 in the thickness direction from the first surface 30a to the second surface 30b. The first through hole 33a is, for example, a circular hole.

The first electrically conductive member 30 has a motor-side connecting portion 34 disposed at an end portion of the first electrically conductive member 30 opposite to the first connecting portion 33 . The motor-side connecting portion 34 has a through hole 34a that penetrates the motor-side connecting portion 34 in the thickness direction from the first surface 30a to the second surface 30b. The through hole 34a is, for example, a circular hole.

The first conductive member 30 is held by the housing 32 while passing through the opening 23 of the plate 20 . The first connecting portion 33 of the first conductive member 30 is arranged on the first main surface 21 side of the plate 20 . On the other hand, the motor side connecting portion 34 is arranged on the second main surface 22 side of the plate 20. That is, the first connection part 33 is arranged outside the motor case 11 shown in FIG. 7, and the motor side connection part 34 is arranged inside the motor case 11. The motor-side connecting portion 34 is connected to a motor-side conductive member (not shown) provided inside the motor case 11.

The connector 10 of this embodiment includes a plurality of the first conductive members 30 described above. For example, three first conductive members 30 are provided corresponding to each phase of the three-phase AC power. The plurality of first conductive members 30 are arranged, for example, along the width direction X of the connector 10.

As shown in FIGS. 2 and 5, the first conductive member 30 has a buried portion 35 buried in the housing 32 between the first connecting portion 33 and the motor side connecting portion 34. As shown in FIGS. The buried portion 35 is bent, for example, in a crank shape inside the housing 32. The buried portion 35 bent in this manner prevents the first conductive member 30 from coming off above and below the housing 32.

The housing 32 of the terminal unit 31 is fixed to the opening 23 of the plate 20 so as to pass through the opening 23 . The housing 32 is made of, for example, a synthetic resin material. The housing 32 is integrally formed with the first conductive member 30 and the plate 20 by insert molding, for example.

As shown in FIG. 7, an annular sealing material 36 is arranged on the outer peripheral surface of the housing 32 on the second main surface 22 side of the plate 20. The sealing material 36 seals between the assembly hole 11a of the motor case 11 into which the housing 32 is inserted and the outer peripheral surface of the housing 32.

As shown in FIG. 1, the housing 32 has a first nut holding portion 37 on the first main surface 21 side of the plate 20. As shown in FIG. Furthermore, the housing 32 has a second nut holding portion 38 on the second main surface 22 side of the plate 20 .

As shown in FIG. 3, a plurality of second nut holding parts 38 are provided corresponding to the plurality of first conductive members 30, respectively. Each second nut holding section 38 holds a nut 38a. The nut 38a is connected to a bolt (not shown) that passes through the through hole 34a of the motor side connecting portion 34. Then, by tightening the bolt and nut 38a, the motor-side connecting portion 34 and the motor-side conductive member are fixed to each other. In a state where the plate 20 is fixed to the motor case 11 shown in FIG. 7, the second nut holding part 38 is located inside the motor case 11.

As shown in FIG. 4, a plurality of first nut holding parts 37 are provided corresponding to the plurality of first conductive members 30, respectively. Each first nut holding section 37 holds a nut 51. The nut 51 is connected to a bolt 52 for fixing the first conductive member 30 and the second conductive members 40a, 40b, and 40c to each other. In a state where the plate 20 is fixed to the motor case 11 shown in FIG. 7, the first nut holding part 37 is located inside the inverter 12.

(Configuration of second conductive member)
As shown in FIGS. 1, 2, and 5, the connector 10 includes, for example, three second conductive members 40a, 40b, and 40c. The three second conductive members 40a, 40b, and 40c correspond to the plurality of first conductive members 30, respectively.

Each second conductive member 40a, 40b, 40c has conductivity. Each of the second conductive members 40a, 40b, and 40c is made of, for example, a copper-based or aluminum-based metal material. Each of the second conductive members 40a, 40b, and 40c has, for example, a flat plate shape. Each of the second conductive members 40a, 40b, and 40c is formed, for example, by punching a metal plate into a predetermined shape by press working. Each of the second conductive members 40a, 40b, and 40c has an extending band shape.

As shown in FIG. 5, each second conductive member 40a, 40b, 40c has a first surface 41 and a second surface 42 facing oppositely to each other. The first surface 41 and the second surface 42 are the main surfaces of the flat second conductive members 40a, 40b, and 40c, and are parallel to each other. Each of the second conductive members 40a, 40b, and 40c is arranged such that the first surface 41 and the second surface 42 are perpendicular to the depth direction Y, for example.

As shown in FIGS. 2 and 5, each second conductive member 40a, 40b, 40c has a second connection portion 43 connected to the first connection portion 33 of the first conductive member 30, and a second connection portion 43 connected to the inverter side conductive member 13. It has a connectable third connecting part 44. In each of the second conductive members 40a, 40b, and 40c, the second connecting portion 43 is arranged at the lower end in the height direction Z, and the third connecting portion 44 is arranged at the upper end in the height direction Z.

The second connecting portion 43 has a second through hole 43a that penetrates the second connecting portion 43 in the thickness direction from the first surface 41 to the second surface 42. The second through hole 43a is, for example, a circular hole.
(Configuration of connection member)
As shown in FIG. 5, the connection member 50 fixes the first connection part 33 and the second connection part 43 to each other. The connection member 50 includes a nut 51 and a bolt 52. The bolt 52 has a shaft portion 53 onto which the nut 51 can be screwed. That is, the shaft portion 53 has a cylindrical shape with a thread formed on its outer peripheral surface. The shaft portion 53 passes through the first through hole 33 a of the first connecting portion 33 and the second through hole 43 a of the second connecting portion 43 . The first connecting portion 33 and the second connecting portion 43 are fixed to each other by tightening the bolt 52 and nut 51.

As shown in FIG. 6, the outer diameter dimension D3 of the shaft portion 53 of the bolt 52 is smaller than the inner diameter dimension D1 of the first through hole 33a and the inner diameter dimension D2 of the second through hole 43a. Moreover, the inner diameter dimension D2 of the second through hole 43a is larger than the inner diameter dimension D1 of the first through hole 33a. As a result, a gap sufficient to move the second conductive members 40a, 40b, and 40c in the direction orthogonal to the axis of the shaft portion 53 is formed between the second through hole 43a and the shaft portion 53.

As shown in FIG. 2, the second conductive members 40a, 40b, and 40c of this embodiment have mutually different shapes. Note that the second conductive members 40a, 40b, and 40c are arranged in the width direction X of the connector 10 in the order of the second conductive member 40a, the second conductive member 40b, and the second conductive member 40c.

The second conductive member 40a extends straight along the height direction Z, for example. That is, the second conductive member 40a is not bent in the width direction X and the depth direction Y.
Each of the second conductive member 40b and the second conductive member 40c has a bent portion 45 between the second connection portion 43 and the third connection portion 44. For example, the bent portion 45 of the second conductive member 40b and the bent portion 45 of the second conductive member 40c are bent in the same direction. Each bent portion 45 is bent in a crank shape in the width direction X of the connector 10, for example. Note that the amount of bending at the bent portion 45 of the second conductive member 40b at the center is smaller than the amount of bending at the bent portion 45 of the second conductive member 40c.

The third connecting portion 44 has a through hole 44a that penetrates the third connecting portion 44 in the thickness direction from the first surface 41 to the second surface 42. The through hole 44a is, for example, a circular hole. As shown in FIG. 7, the third connecting portion 44 is fixed to the inverter-side conductive member 13 by tightening a bolt 46 and a nut (not shown).

Next, the manner of assembling the connector 10 will be explained together with the operation of this embodiment.
First, the connector 10 is assembled to the motor case 11. Here, in the connector 10, the bolts 52 connecting the first connecting portion 33 of each first conductive member 30 and the second connecting portion 43 of each second conductive member 40a, 40b, 40c are connected to the first connecting portion 33. It is screwed onto the nut 51 without tightening the second connecting portion 43. As a result, each of the second conductive members 40a, 40b, 40c is prevented from falling off by the shaft portion 53 of the bolt 52, but in the direction orthogonal to the shaft portion 53, that is, in the width direction X and height direction of the connector 10. Position adjustment is possible in Z.

Next, the inverter 12 is assembled to the motor case 11 to which the connector 10 has been assembled. At this time, a positional shift in the width direction X or height direction Z may occur between the first conductive member 30 of the connector 10 and the inverter side conductive member 13. The positional deviation between the first conductive member 30 and the inverter-side conductive member 13 is caused by contraction and deformation of the housing 32 that holds the first conductive member 30, manufacturing tolerances of the motor case 11, the connector 10, and the inverter 12, etc. This is something that occurs when At this time, by adjusting the position of each of the second conductive members 40a, 40b, 40c in the orthogonal direction of the shaft portion 53, the third connection portion 44 of each of the second conductive members 40a, 40b, 40c with respect to the inverter side conductive member 13 is adjusted. can be aligned. Thereafter, the bolt 52 and nut 51 are tightened to fix the first connection part 33 and the second connection part 43, and on the other side, the third connection part 44 and the inverter-side conductive member 13 are fixed with the bolt 46.

The effects of this embodiment will be explained.
(1) Each first conductive member 30 is connected to the inverter side conductive member 13 via each second conductive member 40a, 40b, 40c which is separate from each first conductive member 30. As a result, the positional deviation between the first conductive member 30 and the inverter-side conductive member 13 is absorbed by the second conductive members 40a, 40b, and 40c that relay between the first conductive member 30 and the inverter-side conductive member 13. It becomes possible to do so. As a result, it becomes possible to suppress deterioration in the ease of assembling the connector 10.

Note that the second conductive members 40a, 40b, 40c are not provided with a synthetic resin member that partially covers the surfaces of the second conductive members 40a, 40b, 40c. Therefore, the configuration of the connector 10 is simplified.

(2) The connector 10 includes a connecting member 50 that connects the first connecting portion 33 of the first conductive member 30 and the second connecting portion 43 of the second conductive members 40a, 40b, and 40c. The first connecting portion 33 has a first through hole 33a that penetrates the first connecting portion 33. The second connecting portion 43 has a second through hole 43a that passes through the second connecting portion 43. The connecting member 50 includes a bolt 52 passing through the first through hole 33a and the second through hole 43a, and a nut 51 connected to the bolt 52. The first connecting portion 33 and the second connecting portion 43 are fixed to each other by tightening the bolt 52 and nut 51.

According to this configuration, it is possible to align the second conductive members 40a, 40b, and 40c with respect to the inverter-side conductive member 13 while loosening the bolts 52 and nuts 51. After the alignment, it is possible to tighten the bolts 52 and nuts 51 to fix the first conductive member 30 and the second conductive members 40a, 40b, 40c.

(3) The bolt 52 has a shaft portion 53 that passes through the first through hole 33a and the second through hole 43a. The outer diameter dimension D3 of the shaft portion 53 is smaller than the inner diameter dimension D1 of the first through hole 33a and the inner diameter dimension D2 of the second through hole 43a. The inner diameter dimension D2 of the second through hole 43a is larger than the inner diameter dimension D1 of the first through hole 33a.

According to this configuration, a gap is created between the second through hole 43a and the shaft portion 53 of the bolt 52. As a result, the positions of the second conductive members 40a, 40b, 40c are adjusted such that the shaft portion 53 of the bolt 52 passes through the first through hole 33a of the first connecting portion 33 and the second through hole 43a of the second connecting portion 43. can be adjusted in the direction orthogonal to the shaft portion 53.

(4) Each of the second conductive member 40b and the second conductive member 40c has a bent portion 45 between the second connection portion 43 and the third connection portion 44, respectively. According to this configuration, by using the second conductive members 40b and 40c having the bent portions 45, it becomes possible to correspond to the specifications of various inverters 12 and connectors. As a result, the degree of freedom in designing the path from the first conductive member 30 to the inverter-side conductive member 13 can be improved.

(5) Each of the plurality of second conductive members 40a, 40b, and 40c has a different shape. According to this configuration, by making the shapes of the second conductive members 40a, 40b, and 40c different from each other, it is possible to correspond to specifications of various inverters 12 and connectors. As a result, the degree of freedom in designing the path from the first conductive member 30 to the inverter-side conductive member 13 can be improved.

This embodiment can be modified and implemented as follows. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- In the above embodiment, the inner diameter dimension D1 of the first through hole 33a may be the same as the inner diameter dimension D2 of the second through hole 43a. Further, the size relationship between the first through hole 33a and the second through hole 43a may be reversed from that in the above embodiment. That is, the inner diameter dimension D1 of the first through hole 33a may be larger than the inner diameter dimension D2 of the second through hole 43a. Even with this configuration, it is possible to align the second conductive members 40a, 40b, and 40c with respect to the inverter-side conductive member 13 while loosening the bolts 52 and nuts 51.

- In each of the second conductive members 40a, 40b, and 40c, the shape of the second through hole 43a is not limited to a circle, but may be, for example, an oval shape extending in the height direction Z of the connector 10. Further, the shape of the second through hole 43a may be an oval shape extending in the width direction X of the connector 10. Note that the elliptical shape is, for example, a rounded rectangle having two parallel lines of equal length and two semicircles connecting both ends of the parallel lines. When the second through hole 43a has an oval shape, at least the major axis of the inner diameter of the second through hole 43a is set to be larger than the inner diameter D1 of the first through hole 33a.

- The shape of the first conductive member 30 is not limited to a flat plate shape, and may be, for example, a plate shape that is curved or bent in the thickness direction. Further, for example, the first conductive member 30 may have a columnar shape with a circular or polygonal cross section.

- The shape of the second conductive members 40a, 40b, and 40c is not limited to a flat plate shape, and may be, for example, a plate shape that is curved or bent in the thickness direction. Further, for example, the second conductive members 40a, 40b, and 40c may have a columnar shape with a circular or polygonal cross section.

- The arrangement position of the first conductive member 30 is not limited to the above embodiment, and can be changed as appropriate depending on the configuration of the motor and the inverter 12.
- The number of the first conductive member 30 and the second conductive members 40a, 40b, 40c is not limited to the above embodiment, and may be one, two, or four or more, respectively.

- In the above embodiment, the first connection part 33 of the first conductive member 30 and the second connection part 43 of the second conductive members 40a, 40b, 40c are connected by, for example, ultrasonic bonding other than bolt fastening. You can also use it as

- In the above embodiment, the inverter-side conductive member 13 is provided inside the inverter 12; however, for example, the inverter-side conductive member 13 may be exposed to the outside from the casing of the inverter 12. .

- In the above embodiment, at least one of the plurality of second conductive members may have a different shape from the others, and all the other second conductive members may have the same shape.
- Although the shapes of the second conductive members 40a, 40b, and 40c in the above embodiment are different from each other, the present invention is not limited to this, and each of the plurality of second conductive members may have the same shape. FIG. 8 shows, as an example of a configuration in which each of the plurality of second conductive members has the same shape, a configuration in which all of the plurality of second conductive members are changed to the second conductive member 40a of the above embodiment. . According to this configuration, each second conductive member 40a becomes a common component. Therefore, even though a plurality of second conductive members 40a are used, complication of parts management and deterioration of assembly workability can be suppressed. Note that each second conductive member may be changed to a second conductive member 40b having a bent portion 45 or a second conductive member 40c.

- For example, as shown in FIG. 9, in the second conductive members 40a, 40b, 40c, a covering member 60 made of synthetic resin may be provided to cover a part of the surface of the second conductive members 40a, 40b, 40c. Note that in the configuration shown in FIG. 9, a configuration in which each of the plurality of second conductive members 40a has the same shape is shown as an example, but the present invention is not limited to this, and each of the plurality of second conductive members may have a different shape from each other. It may be.

As shown in FIG. 9, the covering member 60 is formed by insert molding using a plurality of second conductive members 40a as insert products. The covering member 60 covers the longitudinal center portion of each second conductive member 40a, that is, the portion between the second connecting portion 43 and the third connecting portion 44. That is, in each second conductive member 40a, the second connecting portion 43 and the third connecting portion 44 are exposed from the covering member 60.

The covering member 60 is not divided for each second conductive member 40a. That is, the covering member 60 surrounds the plurality of second conductive members 40a in a manner that connects the plurality of second conductive members 40a to each other. Thereby, the covering member 60 and the plurality of second conductive members 40a connected to each other by the covering member 60 are configured as an integral component 61. The covering member 60 does not have a fixing part that is fixed to, for example, the housing of the inverter 12 or the motor case 11. That is, the covering member 60 is not directly connected to the inverter 12 side and the motor case 11 side. Thereby, the integral component 61 is connected to the inverter 12 side only at the third connecting portion 44 of each second conductive member 40a. Further, the integral component 61 is connected to the motor case 11 side only at the second connecting portion 43 of each second conductive member 40a.

According to the configuration shown in FIG. 9, the same effects as in the above embodiment can be achieved. That is, the second conductive member 40a that relays between the first conductive member 30 and the inverter-side conductive member 13 can absorb the positional deviation between the first conductive member 30 and the inverter-side conductive member 13. Become. As a result, it becomes possible to suppress deterioration in the ease of assembling the connector.

Further, the covering member 60 surrounds the plurality of second conductive members 40a in a manner that connects the plurality of second conductive members 40a to each other. Thereby, it becomes possible to configure the plurality of second conductive members 40a as one component using the covering member 60. Therefore, even though a plurality of second conductive members 40a are used, complication of parts management and deterioration of assembly workability can be suppressed.

- In the above embodiment, the connection structure between the first conductive member 30 and each second conductive member 40a, 40b, 40c is such that the position of the second conductive member 40a, 40b, 40c itself can be adjusted. , the position of the third connecting portion 44 is adjustable. However, the present invention is not particularly limited to this, and, for example, the configuration shown in FIG. 10 may be used.

A connector 70 configured as shown in FIG. 10 includes a plurality of second conductive members 71 connected to a plurality of first conductive members 30, respectively. Each second conductive member 71 includes, for example, a terminal fitting 72 and a flexible conductor 73 having higher flexibility than the terminal fitting 72. An insulating coating 74 made of, for example, synthetic resin is provided around the outer periphery of the flexible conductor 73.

The flexible conductor 73 is made up of, for example, a plurality of wires made of a conductor, and has flexibility. As the flexible conductor 73, for example, a stranded wire in which the plurality of wires are twisted together, a braided wire in which the plurality of wires are woven together, etc. can be used. Further, as a material for forming the plurality of wires constituting the flexible conductor 73, for example, a metal material such as copper-based or aluminum-based can be used.

The flexible conductor 73 has a second connection portion 75 connected to the first connection portion 33 of the first conductive member 30 . The second connecting portion 75 is arranged at one end of the second conductive member 71 . The second connecting portion 75 is provided at one end of the flexible conductor 73 exposed from the insulating coating 74 . The second connecting portion 75 is fixed to the first connecting portion 33 of the first conductive member 30 . The second connecting portion 75 is fixed to the first connecting portion 33 by, for example, ultrasonic bonding or welding.

The flexible conductor 73 has a metal fitting side connecting portion 76 that is connected to the terminal metal fitting 72 . The metal fitting side connection portion 76 is provided at one end portion of the flexible conductor 73 exposed from the insulation coating 74. The metal fitting side connecting portion 76 is arranged at the end of the flexible conductor 73 on the opposite side from the second connecting portion 75 . The metal fitting side connection portion 76 is fixed to the terminal metal fitting 72 by, for example, ultrasonic bonding or welding. The flexible conductor 73 can be bent in a direction perpendicular to the length direction of the flexible conductor 73, as shown by the two-dot chain line in FIG. be.

The terminal fitting 72 has electrical conductivity. The terminal fitting 72 is made of, for example, a copper-based or aluminum-based metal material. The terminal fitting 72 has, for example, a flat plate shape. The terminal fitting 72 is formed, for example, by punching a metal plate into a predetermined shape by press working.

The terminal fitting 72 has a third connecting portion 77 that can be connected to the inverter-side conductive member 13. The third connecting portion 77 is arranged at the end of the second conductive member 71 opposite to the second connecting portion 75 . The third connecting portion 77 has a through hole 77a that penetrates the third connecting portion 77, for example, in the thickness direction. The third connecting portion 77 and the inverter-side conductive member 13 are fixed to each other by tightening with a bolt (not shown) passing through the through hole 77a.

According to the configuration shown in FIG. 10, the flexible conductor 73 of the second conductive member 71 can be freely deformed in a direction perpendicular to the length direction of the flexible conductor 73. Therefore, the position of the third connecting portion 44 of the terminal fitting 72 provided at the end of the flexible conductor 73 can be adjusted according to the position of the inverter-side conductive member 13. Therefore, the second conductive member 71 having the flexible conductor 73 can absorb the positional deviation between the first conductive member 30 and the inverter-side conductive member 13. As a result, it becomes possible to suppress deterioration in the ease of assembling the connector 10.

- The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above-mentioned meaning, and is intended to include meanings equivalent to the claims and all changes within the scope.

10 connector 11 motor case 11a assembly hole 12 inverter 13 inverter side conductive member 20 plate 21 first main surface 22 second main surface 23 opening 24 fixing hole 30 first conductive member 30a first surface 30b second surface 31 terminal unit 32 Housing 33 First connection part 33a First through hole 34 Motor side connection part 34a Through hole 35 Buried part 36 Seal material 37 First nut holding part 38 Second nut holding part 38a Nut 40a Second conductive member 40b Second conductive member 40c Second conductive member 41 First surface 42 Second surface 43 Second connection portion 43a Second through hole 44 Third connection portion 44a Through hole 45 Bent portion 46 Bolt 50 Connection member 51 Nut 52 Bolt 53 Shaft portion 60 Covering member 61 Integral part 70 Connector 71 Second conductive member 72 Terminal fitting 73 Flexible conductor 74 Insulation coating 75 Second connection part 76 Metal fitting side connection part 77 Third connection part 77a Through hole D1 Inner diameter dimension of the first through hole D2 Inner diameter dimension of the second through hole Inner diameter dimension D3 Outer diameter dimension of the bolt shaft X Width direction of the connector Y Depth direction of the connector Z Height direction of the connector

Claims (8)

A connector attached to a motor case to which an inverter is attached and electrically connected to an inverter-side conductive member of the inverter,
a first conductive member having conductivity;
a second conductive member having conductivity;
a synthetic resin housing surrounding the first conductive member;
a flat plate that fixes the housing to the motor case;
Equipped with
the first conductive member has a first connection portion exposed from the housing;
the second conductive member is located on the inverter side of the plate;
The second electrically conductive member includes a second connecting portion disposed at one end of the second electrically conductive member, and a third connecting portion disposed at the other end of the second electrically conductive member. have,
The third connection portion is connectable to the inverter-side conductive member,
The second connection part is connected to the first connection part,
The second connecting portion has a second through hole penetrating the second connecting portion,
The third connecting portion has a third through hole penetrating the third connecting portion,
The second conductive member is a connector whose position can be adjusted in a direction perpendicular to the penetration direction of the second through hole and the third through hole . A connector attached to a motor case to which an inverter is attached and electrically connected to an inverter-side conductive member of the inverter,
a first conductive member having conductivity;
a second conductive member having conductivity;
a synthetic resin housing surrounding the first conductive member;
a synthetic resin covering member surrounding the second conductive member;
a flat plate that fixes the housing to the motor case;
Equipped with
the first conductive member has a first connection portion exposed from the housing;
the second conductive member is located on the inverter side of the plate;
The second electrically conductive member includes a second connecting portion disposed at one end of the second electrically conductive member, and a third connecting portion disposed at the other end of the second electrically conductive member. have,
The second connection portion and the third connection portion are exposed from the covering member,
The covering member does not have a fixing part fixed to the inverter side,
The third connection portion is connectable to the inverter-side conductive member,
The second connection part is connected to the first connection part,
The second conductive member has a flexible conductor, and
The flexible conductor is deformable in a direction perpendicular to the length direction of the flexible conductor . comprising a synthetic resin covering member surrounding the second conductive member,
The second connection portion and the third connection portion are exposed from the covering member,
The covering member does not have a fixing part fixed to the inverter side,
There is a plurality of the first conductive members,
There are a plurality of the second conductive members corresponding to each of the plurality of first conductive members,
The connector according to claim 1 , wherein the covering member surrounds the plurality of second conductive members in a manner that connects the plurality of second conductive members to each other. comprising a connection member that connects the first connection part of the first conductive member and the second connection part of the second conductive member,
The first connecting portion has a first through hole penetrating the first connecting portion ,
The connection member includes a bolt passing through the first through hole and the second through hole, and a nut connected to the bolt,
The connector according to claim 1 or 3 , wherein the first connecting portion and the second connecting portion are fixed to each other by tightening the bolt and the nut. The bolt has a shaft portion passing through the first through hole and the second through hole,
The outer diameter dimension of the shaft portion is smaller than the inner diameter dimension of the first through hole and the inner diameter dimension of the second through hole,
The connector according to claim 4, wherein an inner diameter of the second through hole is larger than an inner diameter of the first through hole. The connector according to any one of claims 1 and 3 to 5, wherein the second conductive member has a bent part between the second connection part and the third connection part. . There is a plurality of the first conductive members,
There are a plurality of the second conductive members corresponding to each of the plurality of first conductive members,
The connector according to any one of claims 1 to 6, wherein at least one of the plurality of second conductive members has a different shape from other second conductive members. There is a plurality of the first conductive members,
There are a plurality of the second conductive members corresponding to each of the plurality of first conductive members,
The connector according to any one of claims 1 to 6, wherein each of the plurality of second conductive members has the same shape.