JP3494986B2 - Wiring structure of automotive control unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin wiring board in which wiring conductors are integrated by insert molding, for example.
The present invention relates to a wiring structure of an automobile control device having the resin wiring board and a connection side connector having a relative displacement.

[0002]

2. Description of the Related Art As a conventional wiring structure for electrically connecting a control device and an electronic component or an electric device to be controlled by a wiring board composed of a resin-molded insulating member and a wiring conductor, The one shown in 8 is well known.

A wiring board 5 composed of a resin-molded insulating member 1 and a wiring conductor 2 and a mating connector 6 connected to the wiring board are individually formed.
A lower electrode (not shown) in which the wiring conductor 2 of the wiring board 5 and the connector terminal 3 are placed in the terminal welding hole 41 provided in the connector housing 4 and inserted from the lower side of the terminal welding hole.
And an upper electrode (not shown) arranged on the upper surface of the wiring conductor 2, and resistance welding is used for connection.

Further, in the case where the wiring conductor 2 and the connector terminal 3 are relatively displaced from each other, when the connector terminal 3 of the mating connector 6 and the wiring conductor 2 of the wiring board 5 are electrically connected, wiring is performed. The conductor 2 has a bent portion 2 for absorbing stress.
It has a structure provided with 1.

[0005]

In the conventional wiring board structure described above, the resin-molded wiring board 5 and the mating connector 6 connected thereto are formed separately.
The connection portion between the connector housing portion 4 and the wiring conductor 2 becomes a dead space for wiring, which impedes downsizing of the wiring structure.

Further, since the wiring conductor 2 of the wiring board 5 and the connector terminal 3 of the mating connector 6 are connected by welding or the like, in particular, when a large number of connectors are used, the number of connecting points increases. This has been a factor of cost increase such as a decrease in connection reliability, an increase in the number of parts, an increase in welding work, and a positioning jig for that purpose.

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a wiring structure for a control device for an automobile, in which the number of connection points is reduced, the reliability of the terminal connection portion is improved, and the connection work is facilitated.

[0008]

Means for Solving the Problems The gist of the present invention to achieve the above object is to provide a wiring structure of a control device for electrically connecting a device with a wiring board provided with a wiring conductor. The connector housing provided on the connection connector side is integrated by the thin portion of the resin insulating member, and the wiring conductor of the wiring board and the wiring conductor of the connection connector are integrally formed, and the resin insulating member is formed. The wiring of the control device for an automobile, characterized in that the thin wall portion and the wiring conductor are provided with a curved portion capable of absorbing the positional deviation between the control device and the device when the control device is connected to the device and making the connection possible. In structure.

That is, the wiring board is integrally formed with the wiring conductor, and the connector and the wiring board are integrated. As a result, by integrally molding the connector housing and the terminal of the separately provided connecting parts, it is possible to reduce the number of parts and improve the reliability of wiring.

Further, since welding work for connecting terminals is not required, a welding jig is not required, and the workability of assembly can be improved, and the reliability of the connection portion can be improved by reducing the number of connection points.

Furthermore, when electrically connecting terminals of a device (electronic component or electric device) having a positional deviation and a wiring conductor of a wiring board, a bent portion provided on the wiring conductor of the wiring board and an insulating member are used. The thin portion provided can be deformed to absorb the positional deviation.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Embodiment 1] FIG. 1 is a perspective view showing a wiring board structure of this embodiment, and FIG. 2 is a side sectional view thereof. The structure of the wiring board 5 of this embodiment is the same as that of the insulating member 1.
And the wiring conductor 2, and the wiring conductor 2 is insert-molded in the insulating member 1.

The insulating member 1 is formed by integrally molding a connector housing portion 12 of a component to be connected and forming a thin portion 11 which absorbs a stress at the time of deformation associated with the connection into a corrugated shape. In this embodiment, the thin portion 11 is formed in a direction substantially perpendicular to the insertion direction (arrow) of the connector 6.

In addition, the wiring conductor 2 is formed integrally with the terminal portion 22 of the connector, and the bent portion 21 for absorbing stress is formed in a Z shape.

As a result, the insulating member 1 and the wiring conductor 2 are
It becomes possible to deform the stress absorbing parts (11, 21) provided in each (within the allowable stress of each material), and even if there is a positional deviation between the terminal (not shown) of the connection component and the connector terminal part 22. Can be absorbed and the connection can be made easily.

[Embodiment 2] FIG. 3 is a perspective view showing a wiring board structure of the present embodiment, and FIG. 4 is a side sectional view thereof. The wiring board structure of the present embodiment is composed of the insulating member 1 and the wiring conductor 2 as in the first embodiment, and the insulating member 1 and the wiring conductor 2 are provided.
Is insert molded.

The insulating member 1 integrally molds the connector housing portion 12 of the component to be connected, and absorbs the stress even if there is a positional deviation between the terminal (not shown) of the connecting component and the connector terminal portion 22. Therefore, the thin portion 11 is formed in a semi-circular shape (or S-shape).

The wiring conductor 2 is the connector terminal portion 2 described above.
2 was integrally molded, and a bent portion 21 for partially absorbing stress was formed in a Z shape and a semicircular arc shape.

As a result, the insulating member 1 and the wiring conductor 2 are
By deforming the stress absorbing portions (11, 21) provided in each, even if there is a positional deviation between the terminal (not shown) of the connection component and the connector terminal portion 22, it can be absorbed, and connection can be performed easily. be able to.

[Embodiment 3] FIG. 5 is a perspective view showing a wiring board structure of the present embodiment, and FIG.
7 is a side sectional view of FIG.

The wiring board structure of the present embodiment is characterized in that it is composed of an insulating member 1 and a wiring conductor 2 as in the first and second embodiments, but the wiring conductor 2 is fitted into the insulating member 1. In point.

In the insulating member 1, the connector housing portion 12 of the connector is integrally formed, and a thin portion 11 is provided between the insulating member 1 and the connector housing portion 12 for absorbing stress. The thin portion 11 was formed into a corrugated shape.

Furthermore, the wiring conductor 2 has the conductor fitting groove 14 formed in accordance with the route thereof, and the connector terminal portion 2
2 is formed with a terminal lock hole 13 for preventing the wiring conductor 2 from coming off.

In the wiring conductor 2, the connector terminal portion 22 is integrally formed, and the bent portion 21 for partially absorbing stress is formed in a Z shape and a semicircular arc shape.

Further, a terminal lock claw 23 for preventing the slip-out is formed in the terminal lock hole 13 to connect the wiring conductor 2 to the insulating member 1.
It is fitted into the conductor fitting groove 14 of the
And the connector terminal portion 22 is fixed.

Even when the wiring conductor 2 is not insert-molded with the insulating member 1, the insulating member 1 and the wiring conductor 2 are connected to the terminal (not shown) of the connecting component and the connector terminal portion 22 by the stress absorbing portions provided respectively. Even if there is a displacement in position, both can be easily connected.

[Embodiment 4] Next, a vehicle control device will be described. A vehicle control device is, for example, a wiring board for electrically connecting an electronic device to an electronic device such as a sensor or a switch for controlling a hydraulic pressure of a hydraulic control circuit section of an electronically controlled automatic transmission. Use a wiring structure.

As a result, since the connector of the electronic device can be integrated with the wiring board, the connector for the electronic device, which is required in the conventional structure, becomes unnecessary, and the number of parts and the wiring space can be reduced.

Since the number of electrical connection points can be reduced, the strength of the wiring portion can be improved, and the reliability and vibration resistance of the connection portion can be improved. This makes it possible to provide a modularized small electronic control device.

As an insulating member for a wiring board for automobiles, a polyamide resin is preferable from the viewpoint of mechanical strength, heat resistance and corrosion resistance, and particularly when high heat resistance is required, a polyamide resin containing glass fiber is preferable. Resin is preferred.

[0031]

According to the present invention, the thin portion 11 provided between the connector housing portion 12 of the connector and the insulating member 1 is provided.
By integrally molding, the connection parts conventionally provided separately (separately) are not required, so that the number of parts can be reduced and the wiring space can be improved.

Further, the welding work for connecting the terminals and the welding jig therefor are unnecessary, the workability of the assembling can be improved, the number of connection points can be reduced, and the reliability of the terminal connecting portions can be improved. it can.

Further, since the bent portion 21 provided on the wiring conductor 2 and the thin portion 11 provided on the insulating member 1 are deformed and the positional deviation in the connection with the electronic device can be absorbed, the connecting work becomes easy. Since the thin portion 11 can be used as a runner during resin molding, it is effective in terms of integral molding.

[Brief description of drawings]

FIG. 1 is a perspective view showing a wiring board structure according to a first embodiment.

FIG. 2 is a side sectional view of FIG.

FIG. 3 is a perspective view showing a wiring board structure according to a second embodiment.

FIG. 4 is a side sectional view of FIG.

5 is a perspective view showing a wiring board structure of Example 3. FIG.

FIG. 6 is a configuration diagram showing a component configuration of FIG.

FIG. 7 is a side sectional view of FIG.

FIG. 8 is a side sectional view showing a conventional wiring board and connector connection structure.

[Explanation of symbols]

1 ... Insulating member, 2 ... Wiring conductor, 3 ... Connector terminal, 4 ...
Connector housing, 5 ... Wiring board, 6 ... Mating connector, 11 ... Thin portion, 12 ... Connector housing portion, 13
... Terminal lock hole, 14 ... Conductor fitting groove, 21 ... Bent part, 2
2 ... Connector terminal portion, 23 ... Terminal locking claw, 41 ... Hole for terminal welding.

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Claims (4)

(57) [Claims] 1. A control device comprising a wiring board provided with a wiring conductor.
Integrated in the wiring structure of a control device for electrically connecting the device having a positional deviation which is a location the controlled object, and the wiring board, and a connector housing of the connector to the equipment by the thin portion of the resin insulating member It is formed on a terminal of the connection connector to the wiring conductor and the device of the circuit board
Is formed integrally with a Z-shaped , Z-shaped and semicircular arc-shaped, or S-shaped bent portion, and the thin-walled portion of the resin insulating member and the wiring conductor are formed. Is equipped with a curved portion that absorbs the positional deviation between the control device and the device that occurs when the control device is connected, and enables connection.
A wiring structure for an automobile control device, characterized in that the connectors are connected by an integrated wiring board . 2. The bent portion formed in the thin portion of the resin insulating member absorbs a positional deviation between the control device and a device when the control device is connected to the device, and enables the connection between the both.
The wiring structure for a control device for an automobile according to claim 1, wherein the wiring structure is formed in a shape capable of absorbing a stress due to a deformation associated with a position shift. 3. The wiring structure for a vehicle control device according to claim 1, wherein the wiring board is formed of a resin insulating member integrated by insert-molding a wiring conductor. 4. The wiring structure for a vehicle control device according to claim 1, wherein the wiring conductor is integrated by being fitted into a conductor fitting groove formed in a resin insulating member.