JP2009146742A - Connector device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector device for securing a wide space in the engine room of an automobile. <P>SOLUTION: The connector device includes an ECU substrate 12 having a plurality of male terminals 20 electrically connected to a circuit incorporated in a substrate body 18 and protruded outward, a non-waterproof connector 16 housing a plurality of female terminals in contact and electrically connected with the male terminals 20, and a second substrate having bus bars electrically connected to the female terminals of the connector 16. The ECU substrate 12 is mounted on the connector 16 so as the male terminals 20 and the female terminals to contact with each other, and at the same time, the second connector is firmly fixed to the connector 16 so as the bus bars and the female terminals to be electrically connected with each other. The connector 16 includes a short-circuit preventing structure 38 at a mounting part of the ECU substrate 12 and the second substrate 14. The connector device is arranged in a way immersed in oil in an automatic transmission of a vehicle. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a connector device used for connection of an electronic control unit (ECU) of a vehicle such as an automobile.

  FIG. 11 is a cross-sectional view of a conventional connector used for connecting an ECU. This connector 100 is provided outside an automatic transmission 103 of an automobile, and an ECU-side connector 101 can be fitted to a tower-side connector 102, and both the connectors 101, 102 are fitted to a predetermined depth. After centering, the bolts 110 are tightened to achieve a completely fitted state. At a predetermined depth, the detection arm 104 provided on the ECU-side connector 101 is elastically locked to the receiving portion 105 provided on the tower-side connector 102, and the opposing surface can be hit by the detection arm 104. It has become. Therefore, after the fitting of both the connectors 101 and 102 reaches a predetermined depth, the bolt tightening is started, so that the tip of the tower side terminal 106 is bent or the both connectors 101 and 102 are damaged. Can be avoided.

JP 2006-351212 A

  However, since the conventional connector 100 is attached to the outside of the automatic transmission 103, the inside of the engine room in which the automatic transmission 103 is disposed becomes narrow, and maintenance work and the like are performed in the engine room. There is a problem that it is difficult.

  An object of the present invention is to solve the above-described problem, and to provide a connector device that can secure a wide space in an engine room of an automobile.

The object of the present invention is achieved by the following configurations.
(1) An ECU board having a plurality of male terminals that are electrically connected to a circuit board body and a circuit built in the circuit board body and project outward, and a plurality of terminals that are electrically connected in contact with the male terminals A non-waterproof connector in which the ECU board is removable, and a second board having a bus bar electrically connected to the female terminal of the connector, the male terminal and the The ECU board is mounted on the connector so that the female terminal comes into contact, and the second board is fixed to the connector so that the bus bar and the female terminal are electrically connected. The connector is provided with a short-circuit prevention structure in the mounting portion of the ECU board and the second board, and is arranged in a state of being immersed in oil in an automatic transmission of a vehicle. Place.

  (2) The connector has a housing body and a cover attached to the housing body, and the female terminal is integrally formed with a connection piece electrically connected to the bus bar, and the free end of the connection piece Is disposed through the side wall of the housing body so as to be exposed to the outside, and the side wall of the housing body has a portion located between the plurality of connection pieces further extending from the end of the side wall in the extending direction of the side wall. The partition has an extending partition, the cover has a recess facing the partition through a gap, and the partition and the recess constitute the short-circuit prevention structure. 1) The connector apparatus as described.

  (3) The connector device according to (1) or (2), wherein the second board is formed by integrally molding the bus bar by insert molding.

  According to the configuration of (1), since the connector device that has been conventionally arranged outside the automatic transmission is arranged in the automatic transmission, a large space can be secured in the engine room of the vehicle. Work such as maintenance becomes easy. In addition, since the board mounting portion of the connector device is provided with a short-circuit prevention structure, even if conductive metal particles generated due to wear of the transmission device are mixed in the oil in the automatic transmission, the connector device will be short-circuited. It is possible to execute reliable control without causing it.

  According to the configuration of (2), the partition extending from the housing body of the connector is located between the terminal pieces in the board mounting portion, and the recess is formed in the cover so as to face the partition. In addition, a long creepage distance can be secured, and a short circuit between the terminal pieces can be surely prevented.

  According to the connector device of the present invention, a large space can be secured in the engine room of a vehicle such as an automobile, and operations such as maintenance are facilitated. In addition, even if conductive metal particles generated due to the wear of the transmission are mixed in the oil in the automatic transmission, the connector device will not cause a short circuit, and a non-waterproof connector is used for connection to the ECU board. However, reliable control can be executed.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a connector device according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a connector device according to the present invention, FIG. 2 is a perspective view of a connector mounted on an ECU board, FIG. 3 is an exploded perspective view of a connector showing an enlarged female terminal, and FIG. FIG. 5 is a perspective view of the ECU board, FIG. 6 is a perspective view of the back side of the ECU board, FIG. 7 is a perspective view of the bus bar, FIG. 8 is a perspective view of the second board, and FIG. FIG. 10 is an enlarged view of part A of FIG. 9.

  The connector device 10 includes an ECU board 12 incorporating an electric circuit, a second board 14 (see FIG. 8) electrically connected to an electronic device used for hydraulic control of an automatic transmission for an automobile, and an ECU board. 12 and a connector 16 to which the second board is mounted. The connector device 10 is disposed in the oil in the automatic transmission for an automobile although it has a non-waterproof structure without a seal member, and is used for hydraulic control in the automatic transmission.

  The ECU board 12 is provided with a large number of male terminals 20 connected to an electric circuit built in the board body 18, and these male terminals 20 are provided so as to protrude from the lower surface of the ECU board 12. The connector 16 accommodates the female terminal 24 shown in FIG. 3 in the housing body 22, and the lower opening of the housing body 22 is closed by a cover 26. The female terminal 24 includes a rectangular tube-shaped box portion 28 into which the male terminal 20 of the ECU board 12 is press-fitted and engaged, and a connection piece 30 formed integrally with the lower portion of the box portion 28. The female terminal 24 is accommodated in the housing body 22 with a box portion 28 fitted into a hole 26 opened in the upper portion of the housing body 18. Further, the connection piece 30 projects outward from a notch 33 formed at the edge of the side wall 32 of the housing body 22 to the outside.

  The ECU board 12 is mounted on the connector 16 so that the male terminal 20 of the ECU board 12 engages (that is, contacts) the box portion 28 of the female terminal 24 in the connector 16. Electrically connected. The ECU board 12 is configured to be detachable from the connector 16. Here, the ECU board 12 and the connector 16 are in close contact, there is no gap between the ECU board 12 and the connector 16, and conductive iron particles in oil enter between the ECU board 12 and the connector 16. I can't do it. With such a close structure, a short-circuit prevention structure between the ECU board 12 and the connector 16 is configured.

  Further, at the edge of the side plate 32 of the housing main body 22, a portion located between the connection pieces 30 protruding from the inside of the housing main body 22 further extends from the side plate edge to form a partition wall 34 (see FIG. 10). Yes. The partition wall 34 becomes a part of a short prevention structure 38 between the second substrate 14 and the connector 16.

  A concave groove 36 (see FIG. 10) that forms a short-circuit prevention structure 38 between the second substrate 14 and the connector 16 is formed outward in the peripheral edge of the cover 26. The concave groove 36 has a shape facing the partition wall 34 of the housing body 22 with a gap, and the partition wall 34 and the concave groove 36 constitute a short prevention structure 38. The cover 26 shown in FIG. 3 has a pedestal 40 protruding into the housing main body 22, and the volume of the housing main body 22 is reduced by the pedestal 40, but this pedestal 40 is omitted. Also good.

  The number of bus bars 42 provided on the second substrate 14 is the same as the number of connection pieces 30 protruding from the connector 16, and is insert-molded so as to surround a space corresponding to the planar shape of the housing body 22 as shown in FIG. 7. . As a result, as shown in FIG. 8, the inner end of the bus bar 42 is positioned in the recess 44 of the second substrate 14 corresponding to the connection piece. The bus bar 42 is electrically connected to an electric circuit 46 built in the second substrate 14.

  Further, in a state where the connector 16 is placed on the second substrate 14, the connection piece 30 protruding from the connector 16 is soldered to the bus bar 42 and electrically connected. And the 2nd board | substrate 14 is electrically connected with the apparatus outside the automatic transmission via the electrical circuit 46 and the connection terminal which is not shown in figure. In FIG. 1, the second substrate body 48 is not shown, and only the bus bar 42 is shown.

  As shown in FIG. 10, a short prevention structure 38 is configured by the partition wall 34 extending from the side wall 32 of the housing body 22 and the concave groove 36 formed in the cover 26. The partition wall 34 extends between the connection pieces 30 protruding from the connector 16, and the corresponding concave groove 36 faces the partition wall 34, so that a long creepage distance is secured between the adjacent connection pieces 30. Therefore, even if conductive metal particles adhere to the connection piece 30 in the oil in the automatic transmission, the conductive metal particles do not straddle the adjacent connection piece 30, and a short circuit between the connection pieces 30 is ensured. Can be prevented.

  In addition, as shown in FIG. 8, the second substrate 14 prevents the partition 50 from extending from the substrate body 48 between the adjacent bus bars 42 and shorting between the adjacent bus bars 42. The partition wall 42 may be omitted.

  According to the above-described embodiment, since the ECU board 12 is detachable from the connector 16, it is easy to replace the ECU board 12 in accordance with a change in control content or the like. Since the connector 16 equipped with the ECU board 12 is disposed in the oil in the automatic transmission, it is not necessary to dispose these outside the automatic transmission, and a large space in the engine room can be secured. Thereby, work such as maintenance is facilitated.

  Further, since the connector 16 is provided with the short prevention structure 38 at the mounting portion between the ECU board 12 and the second board 14, there is a problem of short circuit even if the non-waterproof connector 16 that is not waterproofed is used. Control is executed without. Further, by using the non-waterproof connector 16, the seal member is unnecessary, so the connector 16 is small, and the space occupied by the connector device 10 in the automatic transmission can be reduced. High degree.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the object of the present invention can be achieved.

1 is a perspective view of a connector device according to the present invention. It is a perspective view of the ECU board mounting side of the connector. It is a disassembled perspective view of a connector. It is a perspective view of the 2nd board | substrate mounting side of a connector. It is a perspective view of an ECU board. It is a perspective view of the lower side of an ECU board. It is a perspective view of a bus bar. It is a perspective view of a 2nd board | substrate. It is a perspective view of an ECU board and a connector. It is the A section enlarged view of FIG. It is an attachment state figure of the conventional ECU connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Connector apparatus 12 ECU board | substrate 14 2nd board | substrate 16 Connector 18 Board | substrate main body 20 Male terminal 22 Housing main body 24 Female terminal 26 Hole 28 Box part 30 Connection piece 32 Side wall 34 Partition 36 Concave groove 38 Short prevention structure 40 Base part 42 Bus bar 44 Recess 46 Electric circuit 48 Substrate body 50 Bulkhead

Claims (2)

  An ECU board having a plurality of male terminals electrically connected to a circuit board and a circuit built in the circuit board body and projecting outward, and a plurality of female terminals electrically connected in contact with the male terminals A non-waterproof connector on which the ECU board can be attached and detached, and a second board having a bus bar electrically connected to the female terminal of the connector, the male terminal and the female terminal, The ECU board is mounted on the connector so that the connector contacts the connector, and the second board is fixed to the connector so that the bus bar and the female terminal are electrically connected to each other. The connector device is characterized in that a short-circuit preventing structure is provided on the mounting portion of the ECU board and the second board, and the ECU board is immersed in oil in the automatic transmission of the vehicle.   The connector has a housing main body and a cover attached to the housing main body, the female terminal is integrally formed with a connection piece electrically connected to the bus bar, and the free end of the connection piece is the housing The side wall of the housing main body is formed such that a portion located between the plurality of connection pieces further extends in an extending direction of the side wall from the end portion of the side wall. 2. The short-circuit preventing structure according to claim 1, wherein the cover has a recess facing the partition through a gap, and the partition and the recess constitute the short-circuit preventing structure. Connector device.

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