JP6622005B2 - connector - Google Patents

Description

  The technology disclosed in this specification relates to a connector.

  Conventionally, as a shield connector attached to a device case that houses a device such as a motor mounted on an electric vehicle or a hybrid vehicle, an opening is provided, and a metal fixing plate that is fixed to the device case, There is a connector having a connector housing made of synthetic resin (see Patent Document 1). In the connector having such a configuration, the connector housing is formed integrally with the plate by insert molding.

JP 2009-32500 A

  In the connector having the above-described configuration, the linear expansion coefficient differs greatly between the metal fixing plate and the synthetic resin connector housing. Therefore, the plate is warped in the cooling process after the molding of the connector housing due to thermal contraction. There is concern.

The connector disclosed in the present specification includes a plate including a main plate having an opening, a plate holding part that is disposed inside the opening and holds the plate, and a terminal that is connected to the plate holding part and holds a terminal. A connector housing including a holding portion, wherein the opening is a through-hole penetrating the main plate, and a peripheral portion of the through-hole is embedded in the plate holding portion in the main plate. The embedded portion includes a recessed portion that is recessed with reference to a hole edge of the through hole , and the plurality of recessed portions are arranged along the hole edge of the through hole.

  According to said structure, when a part of connector housing enters into a recessed part and is caught, the thermal contraction of a connector housing is forcedly suppressed. Thereby, the curvature of a plate is reduced.

  The connector disclosed in this specification may have the following configuration.

The plate may include a first reinforcing wall extending from the outer peripheral edge of the main plate at an angle with the main plate.
The plate may include a second reinforcing wall extending from the hole edge of the opening at an angle with the main plate.
According to said structure, the curvature of a plate can further be reduced according to the reinforcement effect of a 1st reinforcement wall or a 2nd reinforcement wall.

  According to the technology disclosed in the present specification, it is possible to provide a connector that can suppress warping of a plate due to thermal contraction.

Plan view of shield connector of embodiment Front view of shield connector of embodiment AA line sectional view of FIG. Plan view of the fixed plate of the embodiment Cross-sectional view of a modified shield connector

<Embodiment 1>
An embodiment will be described with reference to FIGS. The connector of the present embodiment is a shielded connector 1 that is mounted on a vehicle such as an electric vehicle or a hybrid vehicle and is attached to a device case that houses devices such as a motor and an inverter.

  As shown in FIG. 1, the shield connector 1 includes a metal plate 10, a synthetic resin connector housing (hereinafter abbreviated as “housing 20”), and terminals 30 held by the connector housing 20. ing. The housing 20 is integrated with the plate 10 and the terminals 30 by insert molding.

  The plate 10 is made of metal and includes a main plate 11 and two first reinforcing walls 12 as shown in FIG. As a metal which comprises the plate 10, it can select suitably from arbitrary metals as needed, such as aluminum, aluminum alloy, copper, copper alloy, iron, stainless steel.

  As shown in FIG. 4, the main plate 11 is a rectangular plate that is long in one direction as a whole, and has a pair of first long sides 11L and a pair of first short sides 11S. As shown in FIG. 3, the two first reinforcing walls 12 are walls that rise perpendicularly to the main plate 11 from the two first long sides 11 </ b> L of the main plate 11. Each first reinforcing wall 12 is disposed over the entire length of each first long side 11L.

  The main plate 11 has an opening 13 as shown in FIG. As shown in FIG. 3, the opening 13 is a through-hole penetrating from one plate surface of the main plate 11 to the other plate surface. As shown in FIG. 4, the hole edge of the opening 13 has a rectangular shape that is long in one direction and rounded at the corners, and has a pair of second long sides 13 </ b> L and a pair of second short sides 13 </ b> S. And have. The longitudinal direction of the opening 13 coincides with the longitudinal direction of the main plate 11.

  As shown in FIG. 3, the peripheral portion of the opening 13 in the main plate 11 is an embedded portion 14 embedded in the housing 20, and the main peripheral edge of the plate 10 excluding the embedded portion 14 is the housing 20. It is being fixed to the housing 20 in the state protruded outward from the outer peripheral surface.

  The main plate 11 has a plurality of recessed portions 15. Each recess 15 is a small recess disposed in the embedded portion 14 and recessed outward (toward the outer peripheral edge of the main plate 11) with reference to the hole edge of the opening 13 as shown in FIG. The plurality of recesses 15 are arranged at an equal pitch along each of the two second long sides 13 </ b> L of the opening 13.

  As shown in FIG. 3, the housing 20 includes a partition wall 21 (corresponding to a plate holding portion), a plurality of first terminal holding portions 23 (corresponding to terminal holding portions) that extend from the partition wall 21 and hold a plurality of terminals 30. A plurality of second terminal holding portions 25 (corresponding to terminal holding portions) and a hood portion 27 extending from the partition wall 21 and fitted to the mating connector are provided.

  As shown in FIG. 1, the partition wall 21 is a generally rectangular plate that is long in one direction and rounded at its corners as a whole. It is getting bigger. The partition wall 21 has a buried groove 22. As shown in FIG. 3, the embedded groove 22 is a groove that is recessed inward with respect to the outer peripheral surface of the partition wall 21, and is disposed over the entire periphery of the partition wall 21. As shown in FIG. 3, the partition wall 21 is disposed inside the opening 13 of the plate 10, and the embedded portion 14 is embedded in the embedded groove 22. The partition wall 21 has a plate surface in a direction parallel to the plate surface of the main plate 11, and the longitudinal direction coincides with the longitudinal direction of the main plate 11 as shown in FIG. 1.

  As shown in FIG. 1, the hood portion 27 is a substantially elliptical cylinder, and extends perpendicularly to the partition wall 21 from one of the front and back surfaces of the partition wall 21 as shown in FIG. 3.

As shown in FIG. 3, the first terminal holding portion 23 is a block-like portion that extends perpendicularly to the partition wall 21 from one of the front and back surfaces of the partition wall 21. As shown in FIG. 1, the plurality of first terminal holding portions 23 are arranged inside the hood portion 27 and are arranged in a line along the major axis direction of the ellipse in the hood portion 27 (the left-right direction in FIG. 1). Yes. The first terminal holding portion 23 has a first nut holding portion 24 which opens into a plane parallel to the partition wall 21 (the upper surface in FIG. 3), wherein the first nut N ₁ is held.

As shown in FIG. 3, the second terminal holding portion 25 is a block-like portion that extends from the other side of the front and back surfaces of the partition wall 21 in a direction perpendicular to the partition wall 21 and in the direction opposite to the first terminal holding portion 23. It is. The same number of second terminal holding portions 25 as the first terminal holding portions 23 are arranged in a line in the same direction as the first terminal holding portions 23. One first terminal holding part 23 and one second terminal holding part 25 are paired to hold one terminal 30. As shown in FIG. 3, the second terminal holding portion 25 has a second nut holding portion 26 that opens to a surface perpendicular to the partition wall 21 (the left surface in FIG. 3). nut N ₂ is held.

  As shown in FIG. 3, the hood part 27 and the first terminal holding part 23 are disposed on the opposite side of the first reinforcing wall 12 with respect to the partition wall 21 and the main plate 11, and the second terminal holding part 25 is 1 It is arranged on the same side as the reinforcing wall 12.

The terminal 30 is made of metal and has an L-shaped plate shape as a whole, and one end portion of the both ends is an electric wire connection portion 31 and the other end portion is a device connection portion 33. As shown in FIG. 3, the wire connection portion 31 has a first insertion hole 32 for inserting a shaft portion of a fastening bolt (not shown) fastened to the first nut N ₁ , and the device connection portion 33. has a second insertion hole 34 for inserting the shank of the fastening bolt (not shown) which is fastened to the second nut N _2. Each terminal 30 includes a first terminal holding portion 23 are disposed through the second terminal holding portion 25, the wire connecting portion 31 is arranged to overlap the first nut N _1, device connection unit 33, It is arranged overlapping the second nut N _2.

  The housing 20 is formed integrally with the plate 10 by placing the plate 10 inside the mold and performing insert molding. Here, since the linear expansion coefficient differs greatly between the metal plate 10 and the synthetic resin housing 20, the housing 20 contracts more than the plate 10 in the cooling step after molding. Accordingly, there is a concern that the plate 10 is warped. Therefore, in this embodiment, the recess 15 is provided in the opening 13 of the plate 10. According to such a configuration, a part of the housing 20 enters the recessed portion 15 and is caught, so that the thermal contraction of the housing 20 is forcibly suppressed. Thereby, the curvature of the plate 10 is reduced.

  In particular, since the plurality of recesses 15 are arranged in each of the two second long sides 13L of the opening 13, the direction in which the difference between the contraction amount of the plate 10 and the contraction amount of the housing 20 tends to increase, that is, The contraction of the housing 20 can be suppressed in the longitudinal direction of the main plate 11 and the partition wall 21 (the left-right direction in FIG. 1), and the warpage of the plate 10 can be effectively suppressed.

  Further, since the main plate 11 has the first reinforcing wall 12, the warping of the plate 10 can be further suppressed by the reinforcing effect of the first reinforcing wall 12. In particular, since each of the two first reinforcing walls 12 is disposed on each of the two first long sides 11L, the region where the curvature of the plate 10 is likely to be large, that is, between the two first short sides 11S. Deformation can be effectively suppressed at the center position.

<Modification>
A modification will be described with reference to FIG. The shield connector 40 according to the modified example is different from the above embodiment in that the plate 41 has the second reinforcing wall 42. Since other configurations are the same as those in the above embodiment, the same reference numerals are given and description thereof is omitted.

The second reinforcing wall 42 is a wall that rises perpendicularly to the main plate 11 from the hole edge of the opening 13. The second reinforcing wall 42 extends on the same side as the first reinforcing wall 12 with respect to the main plate 11.
According to the above configuration, the warping of the plate 41 can be further suppressed by the reinforcing effect of the second reinforcing wall 42.

<Other embodiments>
The technology disclosed in this specification is not limited to the embodiments described with reference to the above description and drawings, and for example, the following embodiments are also included in the technical scope.
(1) In the above embodiment, the plurality of recesses 15 are arranged in each of the two second long sides 13L of the opening 13, but the arrangement of the recesses is not limited to the above embodiment. May be arranged over the entire circumference of the hole edge of the part, may be arranged on one of the two second long sides, or may be arranged on both or one of the two second short sides I do not care.

(2) In the above embodiment, the first reinforcing wall 12 is disposed over the entire length of the two first long sides 11L of the main plate 11. However, the arrangement of the first reinforcing wall is not limited to the above embodiment. It may be disposed only on one first long side, may be disposed on both or one of the first short sides, or may be disposed on a part of the first long side.

(3) From the viewpoint of effectively reinforcing the peripheral region of the opening 13 and suppressing the warp of the plate 41, the second reinforcing wall 42 is disposed over the entire circumference of the hole edge of the opening 13. However, the present invention is not limited to this. For example, it may be arranged on both or one of the second long sides of the opening, or may be arranged on both or one of the second short sides.

(4) The first reinforcing wall and the second reinforcing wall may not be perpendicular to the main plate, and may be disposed at a certain angle.

1, 40 ... Shield connector (connector)
DESCRIPTION OF SYMBOLS 10, 41 ... Plate 11 ... Main plate 12 ... 1st reinforcement wall 13 ... Opening part 14 ... Embedded part 15 ... Depression part 20 ... Connector housing 21 ... Partition (plate holding part)
23 ... 1st terminal holding part (terminal holding part)
24 ... 2nd terminal holding part (terminal holding part)
30 ... Terminal 42 ... Second reinforcing wall

Claims (1)

A plate comprising a main plate having an opening;
A plate holding portion that is disposed inside the opening and holds the plate; and a terminal holding portion that is connected to the plate holding portion and holds a terminal , and a connector housing having a larger thermal contraction rate than the plate. A connector,
The opening is a through-hole penetrating the main plate;
In the main plate, a peripheral portion of the through hole is an embedded portion embedded in the plate holding portion,
The embedded portion includes a recessed portion that is recessed with reference to a hole edge of the through hole;
A plurality of the recessed portions are arranged along a hole edge of the through hole ;
A connector , wherein the plate includes a first reinforcing wall extending from the outer peripheral edge of the main plate at an angle with the main plate, and a second reinforcing wall extending from the hole edge of the opening at an angle with the main plate .

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