WO2018123702A1

WO2018123702A1 - Connector

Info

Publication number: WO2018123702A1
Application number: PCT/JP2017/045423
Authority: WO
Inventors: 耕至篠田
Original assignee: 住友電装株式会社
Priority date: 2016-12-27
Filing date: 2017-12-19
Publication date: 2018-07-05
Also published as: JP2018107017A

Abstract

A housing 31 for a connector 22 has an affixation section 41 which is fitted into a mounting hole 11X in a device case 11, and a rectangular cylindrical hood section 42 which protrudes from the inner end surface 41b of the affixation section 41. A mounting groove 41a in which a seal ring 35 is mounted is formed in the outer circumferential surface of the affixation section 41 so as to extend along the entire circumference of the affixation section 41. A containing recess 43 is formed in the affixation section 41. The connector 22 has a plurality of terminals 32 affixed to the housing 31 so as to protrude from the bottom surface 43b of the containing recess 43. The containing recess 43 and an inner portion of the hood section 42 form a connector joint chamber 51 into which a device case 11-side connector is inserted. When viewed in the direction perpendicular to the direction in which the plurality of terminals 32 extend, the mounting groove 41a is provided so as to overlap the portions of the plurality of terminals 32, which protrude from the bottom surface 43b of the containing recess 43.

Description

connector

The present invention relates to a connector.

Conventionally, as a connector for a vehicle, for example, it is attached to a device case that contains oil such as a transmission case, and connects an electrical device arranged inside the device case to a control circuit or the like outside the device case. A relay connector is known (see, for example, Patent Document 1).

JP 2013-157256 A

By the way, downsizing and space saving of devices to which the above-described relay connector is attached have been promoted, and accordingly, the length of the relay connector is required to be shortened.
The present invention has been made to solve the above problems, and an object thereof is to shorten the length of the connector.

A connector that solves the above problems is fitted into a mounting hole of an object, and a mounting groove for mounting a seal ring that seals between the mounting hole is formed over the entire circumference of the outer peripheral surface. A fixing portion in which an accommodation recess is formed, a cylindrical hood portion protruding from an inner end surface of the fixing portion, and a plurality of terminals fixed so as to protrude from the bottom surface of the accommodation recess, A connector coupling chamber into which the connector of the object is inserted is formed by the housing recess and the hood portion, and the mounting groove is formed in the plurality of terminals as viewed from a direction orthogonal to the extending direction of the plurality of terminals. It is provided so as to overlap with a portion protruding from the bottom surface of the housing recess.

According to this configuration, the mounting groove is provided so as to overlap with a portion protruding from the bottom surface of the housing recess in the plurality of terminals as viewed from a direction orthogonal to the extending direction of the plurality of terminals. Accordingly, since the connector of the object is connected to the terminal portion that overlaps the mounting groove when viewed from the direction orthogonal to the extending direction of the plurality of terminals, the tip of the connector of the object is fitted into the mounting hole. Paste to the fixed part. For this reason, the length of the connector can be shortened.

In the above connector, it is preferable that the housing recess is formed so that a bottom surface of the housing recess is located on the opposite side of the hood portion with respect to the mounting groove.

According to the connector of the present invention, the length can be shortened.

Schematic of the device case and control unit which show the example of application of a connector. The schematic plan view of the control unit which shows the example of application of a connector. The apparatus case and the partial cross section figure of a control unit which show the example of application of a connector. The schematic perspective view of the control unit which shows the application example of a connector.

Hereinafter, each embodiment will be described.
In the accompanying drawings, components may be shown in an enlarged manner for easy understanding. The dimensional ratios of the components may be different from the actual ones or in other drawings.

As shown in FIG. 1, a control unit 12 is fixed to the upper part of a device case 11 as an object by, for example, a screw or the like. The device case 11 is, for example, a transmission case, in which electric parts such as a motor and a sensor are disposed. The control unit 12 has a connector 22, and the connector 22 is inserted into the mounting hole of the device case 11. The control unit 12 accommodates a control circuit and the like that are connected to electrical parts disposed in the device case 11. The control circuit and the like are connected to electrical components in the device case 11 via terminals disposed on the connector 22.

FIG. 2 shows the control unit 12 as viewed from the device case 11 (see FIG. 1).
FIG. 3 shows a partial cross section of the housing 21 of the control unit 12, a connector 22 formed integrally with the housing 21, and the device case 11. The housing 21 shown in FIG. 2 is a part of a housing that is formed, for example, in a box shape and accommodates a control circuit and the like, and is a part in which a connector 22 is integrally formed.

In FIG. 3, the connector 22 is inserted into the mounting hole 11 </ b> X of the device case 11 from the outside of the device case 11 (upper side in FIG. 3).
The connector 22 includes a housing 31, a plurality of terminals 32, and a seal portion 33.

As shown in FIGS. 3 and 4, the housing 31 has a fixing portion 41 disposed in the mounting hole 11X. As shown in FIG. 4, the fixing | fixed part 41 is formed in the substantially disc shape. A mounting groove 41 a is formed on the outer peripheral surface of the fixed portion 41 over the entire periphery. A seal ring 35 is disposed in the mounting groove 41a. As shown in FIG. 3, the housing 31 (fixed portion 41) is liquid-tightly fitted into the mounting hole 11 </ b> X by the seal ring 35.

As shown in FIG. 3, the connector 22 is fixed to the device case 11 so that the inner end surface 41 b of the fixing portion 41 and the inner surface 11 a of the device case 11 are substantially flush with each other.
The connector 22 has a hood portion 42 that protrudes from an inner end surface 41b of the fixing portion 41 (a surface facing the inside of the device case 11 as an object). The hood part 42 is formed in a substantially rectangular tube shape.

As shown in FIG. 3, the hood portion 42 is inserted into the device case 11. Therefore, the attachment hole 11X of the device case 11 is formed in a size that allows the hood portion 42 to be loosely inserted. And the fixing | fixed part 41 arrange | positioned by the attachment hole 11X of the apparatus case 11 is formed so that it may be liquid-tight by the seal ring 35 between attachment holes 11X. As shown in FIG. 2, the size (diameter) of the fixed portion 41 is set to the diameter of a circle that encloses the rectangular tube-shaped hood portion 42.

An accommodation recess 43 is formed in the fixing portion 41. The housing recess 43 is formed in a rectangular shape from the inner end surface 41b toward the outside (outside of the device case 11). That is, the inner side surface 43a of the housing recess 43 is formed so as to form a rectangular space in plan view. The inner side surface 43a of the housing recess 43 is formed continuously with the inner side surface 42a of the hood portion 42, that is, the inner side surface 43a of the housing recess 43 and the inner side surface 42a of the hood portion 42 are flush with each other. Yes. A space portion inside the housing recess 43 and the hood portion 42 forms a connector coupling chamber 51.

A plurality of terminals 32 are fixed to the housing 31. The terminal 32 is held in the housing 31 by insert molding. The first end portion 32 a of the terminal 32 protrudes from the bottom surface 43 b of the housing recess 43. The second end 32b of the terminal 32 is above the housing 31 and protrudes into the housing of the control unit 12 in this embodiment. The first end portion 32a of the terminal 32 protruding into the housing recess 43 is connected to a terminal (female terminal) provided in the device-side connector inserted into the connector coupling chamber 51 (housing recess 43). .

As shown in FIG. 3, the receiving recess 43 formed in the fixed portion 41 has a bottom surface 43 b set above the position where the seal ring 35 is disposed (outside as viewed from the device case 11). The placement position of the seal ring 35 and the housing recess 43 are formed so that the housing recess 43 and the seal ring 35 overlap on a plane in which the insertion direction of the device-side connector (vertical direction in FIG. 3) is orthogonal. The insertion direction of the device-side connector is opposite to and parallel to the direction in which the terminal 32 of the connector 22 protrudes.

The plurality of terminals 32 are fixed to the housing 31 so as to protrude from the bottom surface 43 b of the housing recess 43 toward the inside of the device case 11. That is, when viewed from a direction orthogonal to the extending direction of the plurality of terminals 32, the portion of the terminal 32 protruding from the bottom surface 43 b of the housing recess 43 and the mounting groove 41 a in which the seal ring 35 is mounted overlap. In other words, the mounting groove 41 a is provided so as to overlap with the portion of the terminal 32 protruding from the bottom surface 43 b of the housing recess 43 as viewed from the direction orthogonal to the extending direction of the plurality of terminals 32.

As shown in FIG. 4, in the present embodiment, two

partition walls

44 a and 44 b are formed inside the hood portion 42. As shown in FIG. 3, these

partition walls

44 a and 44 b extend toward the housing recess 43 and are connected to the bottom surface 43 b of the housing recess 43. That is, as shown in FIGS. 2 and 4, in this embodiment, the connector coupling chamber 51 is divided into three

connector insertion portions

51a, 51b, 51c by two

partition walls

44a, 44b.

As shown in FIG. 3, the housing 31 has an accommodation recess 31 b for accommodating the seal portion 33. The seal portion 33 is made of a potting material such as an epoxy resin, and is in close contact with the root portion of the terminal 32 protruding upward from the housing 31 to seal between the housing 31 and the terminal 32 in a liquid-tight manner.

(Function)
Next, the operation of the connector 22 will be described.
The housing 31 of the connector 22 includes a fixed portion 41 disposed in the mounting hole 11X of the device case 11 and a hood portion 42 that protrudes from the inner end surface 41b of the fixed portion 41 into the device case 11. The fixing portion 41 is formed with an accommodation recess 43 from the inner end surface 41b that is the inner side of the device case 11 as an object toward the outside.

And the connector coupling chamber 51 is formed by the space surrounded by the housing recess 43 and the hood portion 42. In the connector coupling chamber 51, the plurality of terminals 32 are fixed to the housing 31 so as to protrude from the bottom surface 43 b of the housing recess 43 toward the inside of the device case 11. The mounting groove 41 a is provided so as to overlap with the portion of the terminal 32 protruding from the bottom surface 43 b of the housing recess 43 as viewed from the direction orthogonal to the extending direction of the plurality of terminals 32. The device-side connector is inserted into the connector coupling chamber 51 so as to be connected to the portion of the terminal 32 protruding from the bottom surface 43 b of the housing recess 43. That is, the distal end portion of the device-side connector is disposed in the mounting recess 11 </ b> X of the device case 11 from the housing recess 43 of the fixing portion 41, that is, from the inside of the device case 11. For this reason, in the device case 11, the device-side connector is inserted and connected to the connector 22 having a short portion (the hood portion 42 in the present embodiment) protruding inward. Such a connector 22 has a short length (total length of the connector) in the inner and outer directions of the device case 11. That is, the length of the connector 22 is shortened compared to the conventional connector shown in Patent Document 1, for example.

As described above, according to the present embodiment, the following effects can be obtained.
(1) The housing 31 of the connector 22 has a fixing portion 41 that is fitted into the mounting hole 11X of the device case 11 as an object, and a rectangular tube-shaped hood portion 42 that protrudes from the inner end surface 41b of the fixing portion 41. is doing. A mounting groove 41a is formed on the outer peripheral surface of the fixed portion 41 over the entire circumference. The seal ring 35 mounted in the mounting groove 41a is liquid-tight between the mounting hole 11X and the fixed portion 41.

An accommodation recess 43 is formed in the fixing part 41. The housing recess 43 and the inner portion of the hood portion 42 form a connector coupling chamber 51 into which the connector on the device case 11 side is inserted. The plurality of terminals 32 are fixed to the housing 31 so as to protrude from the bottom surface 43 b of the housing recess 43 toward the inside of the device case 11. The mounting groove 41 a is provided so as to overlap with the portion of the terminal 32 protruding from the bottom surface 43 b of the housing recess 43 as viewed from the direction orthogonal to the extending direction of the plurality of terminals 32.

The device-side connector is inserted into the connector coupling chamber 51 so as to be connected to the portion of the terminal 32 protruding from the bottom surface 43 b of the housing recess 43. Accordingly, since the connector on the device case 11 side is inserted into the housing recess 43 of the fixing portion 41 fitted in the mounting hole 11X, the hood portion 42 may be short. Thereby, the length of the connector 22 can be shortened.

In addition, you may implement each said embodiment in the following aspects.
In the above embodiment, the connector 22 integrated with the housing 21 of the control unit 12 is shown. On the other hand, the connector 22 may be formed as a single unit. Further, the connector 22 may be formed integrally with the housing of another unit.

· The shape of the housing 31 and the terminal 32 may be appropriately changed with respect to the above embodiment. For example, the length of the

partition walls

44a and 44b shown in FIG. 2 may be shortened, or the

partition walls

44a and 44b may be divided and formed. Further, the

partition walls

44a and 44b may be omitted.

In the above embodiment, the terminal 32 may be referred to as a conductive terminal pin or a straight pin. The housing 21 of the control unit 12 may be referred to as a base portion of the connector 22. An assembly including the device case 11 and the control unit 12 may be referred to as a vehicle transmission case assembly.

The present disclosure encompasses the following implementation examples. The reference numerals of the constituent elements of the embodiment are given for the purpose of understanding but not limitation.
[Supplementary Note 1] In some implementation examples, a control unit (12) including a device case (11) having a circular bore (11X) extending from an outer opening edge to an inner opening edge and a flat base portion (21). ), The control unit (12) comprising:
A cylindrical fixing part (41) protruding from the base part (21), tightly fitting to the circular bore (11X) from the outside of the device case (11) via a liquid-tight seal ring (35) The cylindrical fixing part (41) configured as follows:
A cylindrical hood portion (42) protruding from the tip of the cylindrical fixing portion (41);
A potting material accommodating recess (31b) at a position close to the base part (21) inside the cylindrical fixing part (41) and a position close to the hood part (42) inside the cylindrical fixing part (41) A partition configured to divide the connector coupling chamber (51),
A plurality of terminals (32) penetrating through the partition wall and the potting material (33) in the potting material accommodating recess (31b);
Each of the plurality of terminals (32) includes a first end (32a) projecting from the bottom surface (43b) of the partition wall to the connector coupling chamber (51) and a second end projecting from the potting material (33). End (32b) of
The liquid-tight seal ring (35) includes the bottom surface (43b) of the partition and the first end (32a) of the plurality of terminals (32) in a side view of the assembly (11, 12). Are arranged at predetermined positions.

[Supplementary Note 2] In some implementation examples, the cylindrical fixing portion (41) includes the bottom surface (43b) of the partition wall and the plurality of terminals (32) in a side view of the assembly (11, 12). An annular groove (41a) for attaching the liquid-tight seal ring (35) is provided at the predetermined position between the first end (32a).

[Supplementary Note 3] In some implementation examples, in the side view of the assembly (11, 12), the tips (tips) of all the first ends (32a) of the plurality of terminals (32) are: It arrange | positions between the said liquid-tight seal ring (35) and the opening end of the said food | hood part (42).

[Supplementary Note 4] In some implementation examples, in the side view of the assembly (11, 12), the tips (tips) of all the first ends (32a) of the plurality of terminals (32) are: The device case (11) is disposed between the outer opening edge and the inner opening edge of the circular bore (11X).

[Supplementary Note 5] In some implementation examples, in the side view of the assembly (11, 12), the tips (tips) of all the first ends (32a) of the plurality of terminals (32) are: It does not protrude from the inner surface (11a) of the device case (11).

[Appendix 6] In some implementation examples, the base portion (21), the cylindrical fixing portion (41), and the hood portion (42) of the control unit (12) are one-piece products of synthetic resin.

[Supplementary Note 7] In some implementation examples, the device case (11) is a vehicle transmission case.
It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the technical spirit thereof. For example, some of the parts described in the embodiment (or one or more aspects thereof) may be omitted, or some parts may be combined. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

22 ... Connector, 31 ... Housing, 32 ... Terminal, 43 ... Housing recess, 43a ... Inner side surface, 41 ... Fixed portion, 41a ... Mounting groove, 41b ... Inner end surface, 42 ... Hood portion, 42a ... Inner side surface.

Claims

A fixing portion that is fitted in a mounting hole of an object and that has a mounting groove for mounting a seal ring that seals between the mounting hole is formed over the entire outer peripheral surface, and an accommodation recess is formed from the inner end surface When,
A cylindrical hood portion protruding from the inner end surface of the fixed portion;
A plurality of terminals fixed so as to protrude from the bottom surface of the housing recess;
Have
A connector coupling chamber into which the connector of the object is inserted is formed by the housing recess and the hood portion,
The mounting groove is provided so as to overlap a portion protruding from the bottom surface of the housing recess in the plurality of terminals, as viewed from a direction orthogonal to the extending direction of the plurality of terminals.
Features a connector.
2. The connector according to claim 1, wherein the housing recess is formed such that a bottom surface of the housing recess is positioned on a side opposite to the hood portion with respect to the mounting groove.