JP2018116898A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector capable of securing reliability of connection with an opposite-side electrically conductive member.SOLUTION: An equipment connector 1 comprises a connector housing 20 fitted to an opposite connector comprising an opposite bus bar 50, and a bus bar 10 retained by the connector housing 20 and having electric conductivity. The bus bar 10 comprises a base part 11 retained by the connector housing 20, and a plate-like first connection part 12 extending from the base part 11. The first connection part 12 comprises a fastening part 16 fixed to the opposite bus bar 50, and a deformation part 17 arranged between the fastening part 16 and base part 11 and having deformation grooves 18A, 18B to be allowed to bend to change its shape.SELECTED DRAWING: Figure 5

Description

  The technology disclosed by this specification is related with a connector.

  Conventionally, a connector of a type in which a terminal fitting is overlapped with a mating terminal and connected by bolting is known. This type of connector includes a plurality of bus bar-shaped terminal fittings that have bolt insertion holes at their ends, and a housing that holds the terminal fittings. The terminal fitting is electrically connected to the mating terminal by overlapping the bus bar-like mating terminal having the bolt insertion hole and screwing the bolt passed through the bolt insertion hole to the nut (see Patent Document 1). .

JP 2011-222398 A

  In the connector as described above, there is a concern that sufficient conduction between the terminals cannot be obtained when the position of the terminal fitting and the counterpart terminal is shifted due to an error in dimensional accuracy or the like. In addition, when used in places where vibrations frequently occur, such as in the engine room of an automobile, the terminals may rub against each other and wear, resulting in increased resistance and poor connection. .

  The connector disclosed by this specification is provided with the connector housing fitted by the other party connector provided with the other party conductive member, and the conductive member which is held by the connector housing, and has conductivity, and the conductive member is the above-mentioned A base portion held by the connector housing; and a plate-like connection portion extending from the base portion, wherein the connection portion is fixed to the counterpart conductive member, and between the fixing portion and the base portion. A bendable portion that is disposed and is allowed to bend and deform.

  According to the above configuration, a certain amount of bending deformation of the connecting portion is allowed due to the presence of the bending allowable portion, and therefore the position of the fixed portion and the counterpart conductive member is shifted due to an error in dimensional accuracy or the like. The bendable portion is bent and deformed so that the position of the fixing portion and the counterpart conductive member is matched, and the fixing portion is securely fixed to the counterpart conductive member, thereby ensuring connection reliability. . Even when the vibration of the vehicle is transmitted to the connection portion, the bending allowable portion has a certain degree of flexibility, so that the vibration is absorbed by the bending allowable portion, and the contact portion between the fixed portion and the counterpart conductive member It is possible to avoid the occurrence of problems in

  Said structure WHEREIN: The bending part which has a bending groove extended in the extension direction of the said connection part and a crossing direction may be sufficient as the said bending | flexion permission part. In such a configuration, the bending groove includes a first bending groove disposed on one plate surface of the connection portion and a second bending groove disposed on the other plate surface of the connection portion. preferable. Furthermore, it is preferable that the plurality of first bending grooves and the plurality of second bending grooves are alternately arranged. Accordingly, it is possible to sufficiently secure the degree of freedom of deformation in the bending portion, which is necessary for absorbing position tolerance and vibration.

  In the above configuration, the bending allowable portion may be a bent portion including a leaf spring portion bent in a mountain shape. In such a configuration, it is preferable that the leaf spring portion includes a first leaf spring portion and a second leaf spring portion that are bent so as to be convex in opposite directions. Thereby, excessive deformation | transformation can be prevented, ensuring the freedom degree of a deformation | transformation of a bending part required in order to absorb a position tolerance and a vibration.

  According to the connector disclosed by this specification, connection reliability with the other party electrically-conductive member is securable.

The perspective view of the apparatus connector of Embodiment 1 The top view of the apparatus connector of Embodiment 1 The side view of the apparatus connector of Embodiment 1 AA line sectional view of FIG. Partial enlarged view of circle R in FIG. The partial expanded side view which shows a mode that the bus bar of Embodiment 1 was connected with the other party bus bar. The partial expansion perspective view of the apparatus connector of Embodiment 2 The partial enlarged plan view of the apparatus connector of Embodiment 2 The partial expanded side view of the apparatus connector of Embodiment 2 The partial expanded side view which shows a mode that the bus bar of Embodiment 2 was connected with the other party bus bar.

<Embodiment 1>
The first embodiment will be described with reference to FIGS. The device connector 1 according to Embodiment 1 is a connector that is mounted on a vehicle such as an electric vehicle or a hybrid vehicle, and is attached to a device case (not shown) that houses a device such as a motor. As shown in FIG. Three bus bars 10 (corresponding to conductive members) and a connector housing 20 that holds these bus bars 10 are provided.

  Each of the three bus bars 10 is formed by bending a member obtained by punching out a metal plate material at approximately two positions at a right angle, and as shown in FIG. 4, a long plate held by the connector housing 20 Base 11, an elongated plate-like first connecting part 12 (corresponding to a connecting part) extending from one end of the base 11 on the same plane as the base 11, and a rectangular plate-like connecting part 13 extending vertically from the other end of the base 11 And a rectangular plate-like second connection portion 14 extending perpendicularly from the extending end of the connecting portion 13 to the opposite side of the base portion 11.

  As shown in FIG. 1 and FIG. 5, the first connection portion 12 is a fastening portion 16 (corresponding to a fixing portion) having a bolt insertion hole 15 at a part on the distal end side. The remaining portion close to is a bending portion 17 (corresponding to a bending allowable portion) including a plurality of bending grooves 18A, 18B. As shown in FIG. 1, the bolt insertion hole 15 is a through hole into which a bolt B for connecting the first connection portion 12 to a mating bus bar (not shown) can be inserted.

  As shown in FIG. 5, a part of the plurality of bending grooves 18 </ b> A and 18 </ b> B is a first bending groove 18 </ b> A that is recessed with reference to one plate surface (the upper surface in FIG. 5) of the bus bar 10, and the rest is the bus bar 10. It is the 2nd bending groove 18B dented on the other board surface (lower surface of FIG. 5) of this. As shown in FIG. 1, each of the flexure grooves 18 </ b> A and 18 </ b> B is disposed over the entire width perpendicular to the extending direction of the bus bar 10. As shown in FIG. 5, the first bending grooves 18 </ b> A and the second bending grooves 18 </ b> B are arranged alternately. Due to the presence of these bending grooves 18A and 18B, a certain degree of bending deformation of the bending portion 17 is allowed.

  The connector housing 20 is made of a synthetic resin and is formed integrally with the bus bar 10 by insert molding. As shown in FIG. 2, the connector housing 20 includes a housing body 21, a first fitting portion 31 that continues from one end of the housing body 21, and a second fitting portion 41 that continues from the other end of the housing body 21. ing.

  The housing main body 21 has a long thick plate shape, and as shown in FIG. 4, the base portions 11 of the three bus bars 10 are embedded side by side.

  The first fitting portion 31 is a portion that fits with the mating connector, and is disposed at one end of the housing body 21 perpendicular to the length direction of the housing body 21 as shown in FIGS. 2 and 4. And an oblong plate-shaped retaining wall portion 32 and a flat elliptical columnar seal holding portion 33 extending from the retaining wall portion 32 in the direction opposite to the housing main body 21. The seal holding portion 33 has a seal holding groove 34 that is recessed with respect to the outer peripheral surface, and a seal ring 35 is attached to the seal holding groove 34. The first connection portion 12 of each bus bar 10 protrudes from the end surface of the seal holding portion 33 (a surface parallel to the stop wall portion 32). The first connection portions 12 of the three bus bars 10 are arranged on the same plane.

  The second fitting portion 41 is a portion attached to the device case, and as shown in FIG. 4, an elliptical plate disposed at the other end of the housing body 21 in parallel with the length direction of the housing body 21. And a cylindrical peripheral wall 43 extending vertically from the periphery of the rear wall 42. Inside the second fitting portion 41, a part of the connecting portion 13 protruding from the housing main body 21 and the second connecting portion 14 are arranged.

  The mating connector fitted to the first fitting portion 31 includes three mating bus bars 50 (see FIG. 6) having bolt insertion holes 51 and mating housings (not shown) that hold these mating bus bars 50. I have. When the device connector 1 is mated with the mating connector, the mating housing and the first mating portion 31 are mated, and the three mating bus bars 50 are respectively connected to the first connecting portions 12 of the three bus bars 10. Connected. More specifically, as shown in FIG. 6, the fastening portions 16 are overlapped with the mating bus bars 50 so that the bolt insertion holes 15 and 51 are aligned. Then, the bolt B is inserted into the bolt insertion holes 15 and 51 and screwed to a nut (not shown) to connect them.

  At this time, the positions of the fastening portion 16 and the counterpart bus bar 50 may be displaced due to an error in dimensional accuracy or the like. Even in such a case, as shown in FIG. 6, the position of the fastening portion 16 can be adjusted to match the counterpart bus bar 50 by flexing and deforming the flexure portion 17. It can be securely fixed to the bus bar 50 to ensure connection reliability.

  Even when the vibration of the vehicle is transmitted to the first connecting portion 12, the bending portion 17 has a certain degree of flexibility, so that the vibration is absorbed by the bending portion 17, and the fastening portion 16 and the mating bus bar 50 It is possible to avoid the occurrence of problems at the contact portions.

  As described above, according to the present embodiment, the device connector 1 includes the connector housing 20 fitted to the mating connector including the mating bus bar 50 and the bus bar 10 held by the connector housing 20 and having conductivity. The bus bar 10 includes a base portion 11 held by the connector housing 20 and a plate-like first connection portion 12 extending from the base portion 11. The first connecting portion 12 is fixed to the mating bus bar 50 and the bending portion 17 is disposed between the fastening portion 16 and the base portion 11 and has bending grooves 18A and 18B to allow bending deformation. With.

  According to the above configuration, since the first connecting portion 12 is allowed to be deformed to some extent due to the presence of the bending portion 17, the position of the fastening portion 16 and the mating bus bar 50 due to an error in dimensional accuracy or the like. Bend and deform the bending portion 17 so that the positions of the fastening portion 16 and the mating bus bar 50 are aligned, and the fastening portion 16 is securely fixed to the mating bus bar 50 to ensure connection reliability. Can do. Even when the vibration of the vehicle is transmitted to the first connecting portion 12, the bending portion 17 has a certain degree of flexibility, so that the vibration is absorbed by the bending portion 17, and the fastening portion 16 and the mating bus bar 50 It is possible to avoid the occurrence of problems at the contact portions.

  In addition, the flexure grooves 18 </ b> A and 18 </ b> B have a plurality of first flexure grooves 18 arranged on one plate surface of the first connection portion 12 and a plurality of second flexures arranged on the other plate surface of the first connection portion 12. The plurality of first bending grooves 18 and the plurality of second bending grooves 18 are alternately arranged. Thereby, it is possible to sufficiently secure the degree of freedom of bending at the bending portion, which is necessary for absorbing position tolerance and vibration.

<Embodiment 2>
Next, Embodiment 2 will be described with reference to FIGS. The device connector 60 (corresponding to a connector) of the present embodiment is different from that of the first embodiment in that a bent portion 63 (corresponding to a bending allowable portion) is arranged instead of the bent portion 17.

  As in the first embodiment, the bus bar 61 includes an elongated plate-like first connection portion 62 that extends from one end of the base portion 11. As shown in FIG. 7, the first connecting portion 62 has a part on the distal end side that is the fastening part 16 as in the first embodiment, and the remaining part closer to the base 11 than the fastening part 16 is bent. Part 63 is formed.

  As shown in FIG. 8, the bent portion 63 extends along the extending direction of the first connection portion 62 and passes through from one plate surface of the first connection portion 62 to the other plate surface, and the slit 64. And two leaf spring portions 65A and 65B arranged side by side. As shown in FIGS. 7 and 9, the two leaf spring portions 65A and 65B are bent so as to protrude in opposite directions. That is, one of the two leaf spring portions 65A and 65B is a first leaf spring portion 65A that protrudes from one plate surface of the first connection portion 62 (bends upward in FIG. 9) and is bent in a mountain shape. The other is a second leaf spring portion 65B that protrudes from the other plate surface of the first connection portion 62 and is bent in a mountain shape (projecting downward in FIG. 9).

  For example, the bent portion 63 is formed by punching the bus bar 61 to form a slit 64, and then pressing the portion disposed with the slit 64 interposed therebetween to form the leaf spring portions 65A and 65B. Alternatively, the leaf spring portions 65A and 65B may be formed while shearing the portion that becomes the slit 64 by pressing.

  Since other configurations are the same as those of the first embodiment, the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  Also in the present embodiment, the first connecting portion 62 is allowed to be deformed to some extent by the presence of the bent portion 63 having the leaf spring portions 65A and 65B. Accordingly, when the positions of the bus bar 61 and the mating bus bar 50 are shifted due to an error in dimensional accuracy, etc., as shown in FIG. 10, the fastening portion 16 and the mating bus bar 50 are bent so that the positions match each other. By bending and deforming the portion 63, the fastening portion 16 can be securely fixed to the mating bus bar 50, and connection reliability can be ensured.

  Even when the vibration of the vehicle is transmitted to the first connection portion 62, the bending portion 63 has a certain degree of flexibility, so that the vibration is absorbed by the bending portion 63, and the fastening portion 16 and the mating bus bar 50 It is possible to avoid the occurrence of problems at the contact portions.

  Further, the first leaf spring portion 65A and the second leaf spring portion 65B are bent so as to protrude in opposite directions. Thereby, excessive deformation | transformation can be prevented, ensuring the freedom degree of a deformation | transformation of the bending part 63 required in order to absorb a position tolerance and a vibration.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various aspects.
(1) In the first embodiment, the bending grooves 18 </ b> A and 18 </ b> B are formed on the plurality of first bending grooves 18 disposed on one plate surface of the first connection portion 12 and the other plate surface of the first connection portion 12. The plurality of second bending grooves 18 are arranged, and the plurality of first bending grooves 18 and the plurality of second bending grooves 18 are alternately arranged. Not limited, it can be set freely within a range that can absorb position tolerance and vibration.

(2) In the second embodiment, the leaf spring portions 65A and 65B are bent so that the leaf spring portions 65A and 65B protrude from one plate surface of the first connection portion 62, and the other plate of the first connection portion 62. The second leaf spring portions 65B that are bent so as to protrude from the surface are included one by one, but the number and arrangement of the leaf spring portions are not limited to those in the above embodiment, and can be freely within a range in which position tolerance and vibration can be absorbed. Can be set to

1, 60 ... Device connector (connector)
10, 61 ... Bus bar (conductive member)
11 ... Base 12 ... 1st connection part (connection part)
16 ... Fastening part (fixing part)
17 ... Bending part (bending allowable part)
18A ... 1st bending groove (flexing groove)
18B ... Second flexure groove (flexure groove)
20 ... Connector housing 63 ... Bending part (bending allowance part)
65A ... 1st leaf spring part (leaf spring part)
65B ... 2nd leaf spring part (leaf spring part)

Claims (6)

A connector housing fitted to a mating connector provided with a mating conductive member;
A conductive member held by the connector housing and having conductivity,
The conductive member includes a base portion held by the connector housing, and a plate-like connection portion extending from the base portion,
A connector comprising: a fixing portion that is fixed to the mating conductive member; and a bending allowance portion that is disposed between the fixing portion and the base portion and is allowed to undergo bending deformation.   The connector according to claim 1, wherein the bending allowance portion is a bending portion having a bending groove extending in a direction intersecting with an extending direction of the connection portion.   The connector according to claim 2, wherein the bending groove includes a first bending groove disposed on one plate surface of the connection portion and a second bending groove disposed on the other plate surface of the connection portion. .   The connector according to claim 3, wherein the plurality of first bending grooves and the plurality of second bending grooves are alternately arranged.   The connector according to claim 1, wherein the bending allowable portion is a bent portion including a leaf spring portion bent in a mountain shape.   The connector according to claim 5, wherein the leaf spring portion includes a first leaf spring portion and a second leaf spring portion that are bent so as to be convex in opposite directions.

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