JP3101509B2 - Wiring structure of shift lever device for automatic transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever device for an automatic transmission of an automobile, and more particularly to a wiring structure for connecting a wire harness extending from the shift lever side to an electronic control unit.

[0002]

2. Description of the Related Art Some shift lever devices for automatic transmissions are provided with an overdrive switch (OD switch) for increasing a gear ratio in a drive range. O
The D switch is provided near the top of the shift lever, and by turning on and off the OD switch during traveling, a gear ratio suitable for traveling conditions can be selected.

FIGS. 9 to 12 show a conventional shift lever device for an automatic transmission. 9 and 10, the shift lever 2 is swingably supported by a base plate 4 fixed to the vehicle body. An OD switch (not shown) is provided near the top of the shift lever 2. Wire harness (coated wire) 6 for OD switch
Is connected. The other of the wire harness 6 extends downward through the hollow portion of the shift lever 2 and extends away from the shift lever 2 near the fulcrum shaft 5 of the shift lever 2. The wire harness 6 further extends outside the base plate 4 via a notch 8 formed in the base plate 4 and is connected to a connector 9.

On the outer surface of the base plate 4, an ECU is provided.
(Electronic control device) 10 is attached. Connector 9
Is, as shown in FIG.
It can be plugged in. Connector 9 is ECU 10
When it is inserted into the terminal, the terminal (not shown) on the wire harness 6 side and the terminal 11a of the ECU 10 are electrically connected. The connector 9 is provided with an engagement claw 9a for preventing the connector 9 from coming out of the insertion port 11 of the ECU 10. The wire harness 6 is formed by covering a copper wire 6a with a covering material such as a synthetic resin as shown in FIG. 12, but in order to surely prevent damage to the wire harness 6 extending outside the base plate 4, Is covered by a protector tube 12 made of vinyl chloride or the like.

[0005]

However, the wiring structure shown in FIGS. 9 to 12 has the following problems. Since the wire harness 6 is exposed to the outside of the base plate 4, a protector tube 12 for protecting the wire harness 6 is required, and the protector tube 12
The operation of inserting the wire harness 6 into the wire becomes necessary, and the cost increases. The connector 9 is a connector for electrically connecting circuits or devices to each other. The connector 9 has a structure that can be detached and attached with a single touch and has a locking function for preventing the detachment, so that the structure is relatively complicated. And the cost increases.

SUMMARY OF THE INVENTION It is an object of the present invention to protect a wire harness without using a protector tube, and to electrically connect the wire harness and an electronic control unit with a simple structure. An object of the present invention is to provide a wiring structure of a shift lever device capable of reliably preventing the electronic device from coming off.

[0007]

A wiring structure of a shift lever device for an automatic transmission for achieving this object is as follows. A board of the electronic control device on which the electronic component is mounted, a holding case for holding the board, a first terminal provided on the board, made of a tab terminal and made of a conductive material,
A second terminal made of a conductive material insertable into the first terminal and extending into the holding case from a lower end side of a shift lever provided near the holding case and electrically connected to the second terminal; A wiring harness, which is attached to the holding case and covers the substrate and the wire harness arranged in the holding case and is close to the second terminal;
The inner surface when a second terminal inserted into the first terminal moves in a direction to come out of the first terminal.
And a cover for preventing the second terminal from falling out of the first terminal during the operation of the shift lever device for an automatic transmission.

[0008]

In the shift lever device for an automatic transmission according to the present invention, a first terminal is provided on a substrate of the electronic control unit. The wire harness extends from the lower end of the shift lever into the holding case, and a second terminal is connected to the wire harness. Since the second terminal can be inserted into the first terminal, by inserting the second terminal into the first terminal, the wire harness is easily electrically connected to the board of the electronic control unit. . Therefore, a connector having a complicated structure is not required. Further, by attaching the cover to the holding case, the substrate and the wire harness are covered by the cover, so that it is not necessary to cover the wire harness with the protector tube, and the protector tube becomes unnecessary. When the second terminal inserted into the first terminal moves in a direction to escape from the first terminal, the second terminal
Are in contact with the cover attached to the holding case, so that the second terminal is reliably prevented from coming off from the first terminal.

[0009]

1 to 4 show a wiring structure of a shift lever device for an automatic transmission according to an embodiment of the present invention. In FIG. 1, reference numeral 20 denotes a shift lever.
The shift lever 20 is swingably supported by a base plate 24 via a shaft 22. Shift lever 2
A push button 25 for a shift operation is mounted on the top of 0. The detent rod 26 arranged in the shift lever 20 is interlocked with the movement of the push button 25. The detent rod 26 is provided with detent pins (not shown) for positioning the shift lever 20 in each range.

Immediately below the push button 25 of the shift lever 20,
An OD switch (overdrive switch) 30 for increasing the gear ratio in the drive range is provided. By turning on and off the OD switch 30 during traveling of the vehicle, a gear ratio suitable for traveling conditions can be selected. The shaft 22 is engaged with the shift lever 20 made of a synthetic resin in the swing direction, and the swing power of the shift lever 20 is transmitted to the arm lever 32 attached to the shaft 22. The arm lever 32 is connected to an automatic transmission (not shown) via a rod 34 shown in FIG.

The OD switch 30 is connected to two wire harnesses (covered electric wires) 40. The wire harness 40 extends downward through the hollow portion 21 of the shift lever 20 and protrudes from the lower end of the shift lever 20.
The hollow portion 21 is a portion defined by a partition wall (not shown), and the detail rod 26 is not disposed in the hollow portion 21. An ECU retainer 42 as a holding case is provided adjacent to the shift lever 20 in the lateral direction. The ECU retainer 42 is made of a synthetic resin. The ECU retainer 42 has a board (printed wiring board) 4 of an electronic control unit (ECU) on which electronic components are mounted.
4 are held.

The substrate 44 is provided with two first terminals (tab terminals) 46 made of a conductor having a small electric resistance. One of the first terminals 46 is fixed to the substrate 44, and the other extends horizontally in a direction away from the shift lever 20. The wire harness 40 protruding from the lower end of the shift lever 20 extends in the horizontal direction along the shaft 22 and extends upward immediately below the substrate 44. The wire harness 40 extending upward is further equipped with an ECU.
It extends into the retainer 42. Each wire harness 40
Is electrically connected to a second terminal 48 made of a conductor having a small electric resistance. In this embodiment, each wire harness 40 and the second terminal 48 are connected by soldering.

The second terminal 48 can be inserted into the first terminal 46. The first terminal 4 is connected to the second terminal 48.
6, the first terminal 46 and the second terminal 48 are electrically connected, and as a result, the OD switch 3
0 is electrically connected to the substrate 44 via the wire harness 40. In this embodiment, the first terminal 46 is formed in a flat plate shape, and the second terminal 48 is formed in a box shape that can be inserted into the first terminal 46. A notch 43 through which the wire harness 40 is inserted is formed in a lower wall 42 a of the ECU retainer 42.

A cover 50 is attached to the ECU retainer 42 to cover the board 44 and the wire harness 40 extending into the ECU retainer 42. The cover 50 has E
An engaging portion (not shown) that can be engaged with an engaging portion (not shown) formed on the CU retainer 42 is formed.
Is pressed against the ECU retainer 42, the cover 5
0 can be attached to the ECU retainer 42. When the cover 50 is attached to the ECU retainer 42, FIG.
As shown in the figure, the inner surface 50a of the cover 50 is
8 and the first terminal of the second terminal 48.
Is prevented from moving out of the terminal 46.

Next, the operation of the shift lever device in the wiring structure will be described. The wire harness 40 connected to the OD switch 30 is inserted into the hollow portion 21 through an OD switch mounting work hole (not shown) of the shift lever 20. Since the hollow portion 21 is partitioned by a partition wall (not shown), interference between the wire harness 40 and the detail rod 26 is eliminated. Shift lever 2
The wire harness 40 protruding from the lower end of the “0” is housed in the ECU retainer 42 holding the substrate 44 via the notch 43 of the ECU retainer 42. Since the second terminal 48 is connected to the end of each wire harness 40, the second terminal 48 is inserted into the first terminal 46 of the board 44 so that the second terminal 48 is connected to the first terminal 48. It is electrically connected to the terminal 46. Therefore, the wire harness 40 connected to the OD switch 30 can be easily connected to the board 44 of the electronic control unit without using a connector, and the cost can be reduced by eliminating the need for the connector.

When the connection between the first terminal 46 and the second terminal 48 is completed, the cover 50 is attached to the ECU retainer 42. Thus, the board 44 and the wire harness 40 located in the ECU retainer 42 are covered by the cover 50. Since the end of the cover 50 and the end of the second terminal 48 are close to each other, when the second terminal 48 inserted into the first terminal 46 moves in a direction to come out of the first terminal 46, the second Terminal 48 abuts on the inner surface 50 a of the cover 50, and the second terminal 48 is prevented from falling out of the first terminal 46.

Further, since the wire harness 40 located in the ECU retainer 42 is covered by the cover 50 and is not exposed outside the base plate 24, no interference occurs between the wire harness 40 and other devices and the like, and the wire harness 4
Zero damage is reliably avoided. Therefore, it is not necessary to cover the wire harness 40 with a protector tube as in the related art, and the protector tube becomes unnecessary. Further, the first terminal 46 and the second terminal 4 are
8 is covered, foreign matter such as dust does not enter the connection portion between the first terminal 46 and the second terminal 48, and the reliability of the device is improved.

In the above embodiment, the first terminal 46 in the form of a flat plate is used.
Although the box-shaped second terminal 48 is configured to be inserted into the
As shown in the figure, the first terminal 60 is cylindrical and the second terminal 6
A similar effect can be obtained even if 2 is a rod shape that can be inserted into the first terminal 60. In the above embodiment, the wire harness 40 is electrically connected to the second terminal 48 by soldering. However, as shown in FIGS. 6 to 8, the ends of the second terminals 71, 81, 91 are connected. The part is wire harness 40
May be bent in the direction of the arrow so as to clamp the wire harness 40 and the wire harness 40 may be connected by crimping the bent portion.

[0019]

According to the wiring structure of the shift lever device for an automatic transmission according to the present invention, the following effects can be obtained. A first terminal made of a conductive material is provided on a substrate of the electronic control device, and a second terminal made of a conductive material insertable into the first terminal is inserted into a wire harness extending from a lower end of the shift lever into a holding case holding the substrate. And a second terminal inserted into the first terminal and covering the substrate and the wire harness arranged in the holding case is connected to the first terminal.
A cover that prevents the terminal from falling out is attached, so that the wire harness can be protected without using a protector tube, and the wire harness and the electronic control unit can be electrically connected with a simple structure. Moreover, it is possible to reliably prevent the wire harness from coming off the electronic control device.

[Brief description of the drawings]

FIG. 1 is a sectional view of a shift lever device for an automatic transmission according to an embodiment of the present invention.

FIG. 2 is a side view of the apparatus of FIG.

FIG. 3 is a perspective view of the vicinity of a substrate in the apparatus of FIG.

FIG. 4 is an enlarged sectional view showing a connection state between a first terminal and a second terminal in FIG. 3;

FIG. 5 is a perspective view showing a modification of FIG. 3;

FIG. 6 is a perspective view showing a modification of the second terminal in FIG.

FIG. 7 is a perspective view showing another modification of the second terminal in FIG. 3;

FIG. 8 is a perspective view showing still another modification of the second terminal in FIG. 3;

FIG. 9 is a side view of a main portion of a conventional shift lever device for an automatic transmission.

FIG. 10 is a sectional view of FIG. 9;

11 is a perspective view showing a connection relationship between the connector and the electronic control device in FIG.

FIG. 12 is a perspective view of a wire harness connected to the connector of FIG. 11;

[Explanation of symbols]

 Reference Signs List 20 shift lever 30 OD switch 40 wire harness 42 holding case 44 substrate 46 first terminal 48 second terminal 50 cover

Claims (1)

(57) [Claims] 1. A board of an electronic control device on which an electronic component is mounted; a holding case for holding the board ; a first terminal provided on the board, comprising a tab terminal and made of a conductive material; A second terminal made of a conductive material that can be inserted into the terminal, a wire harness extending into the holding case from a lower end side of a shift lever provided near the holding case and electrically connected to the second terminal; , attached to said holding case, with been covering the substrate and the wire harness arranged in a holding case, the
It has an inner surface close to the second terminal, and the second terminal inserted into the first terminal moves in a direction to come out of the first terminal.
When moved, the second terminal hits the inner surface and the first terminal
And a cover for preventing the vehicle from slipping out of the vehicle. A wiring structure for a shift lever device for an automatic transmission, comprising: