JPH0512865U - Solenoid valve harness disconnection prevention structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the work efficiency in the manufacturing process and reduce the manufacturing cost of the solenoid valve. A harness 7 is connected to the wiring portion 4 projecting from the solenoid valve body 1, and a harness cap 10 surrounding the connection portion of the harness 7 is externally fitted to the wiring portion 4. A third accommodating portion (skirt portion) 14 that protrudes in the extending direction of the harness 7 and surrounds the insulating portion 13 of the harness 7 is provided to prevent bending of the harness 7 near the connection portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a harness disconnection preventing structure for a solenoid valve having a harness attached externally.

[0002]

[Prior Art]

 BACKGROUND ART Conventionally, as a wire disconnection prevention structure for a harness externally attached to a solenoid valve, for example, there is one as shown in FIG. That is, the solenoid valve main body 62 fixed to the bracket 61 made of a plate-shaped member has a large-diameter portion 63 and a small-diameter portion 64 that are substantially cylindrical and have the same central axis. A well-known solenoid (not shown) including a bobbin and a coil wound around the bobbin is accommodated in the large diameter portion 63, and as shown in FIG. The wiring portion 65 protruding from the bobbin is exposed. The wiring portion 65 has a terminal 66 connected to a coil (not shown), and a core wire 68 of a harness 67 is soldered to the outer terminal 66. Further, the connection portion 69 between the terminal 66 and the core wire 68 is surrounded and insulated and protected by a harness cap 70 fitted on the wiring portion 65, and between the harness cap 70 and the wiring portion 65. A hole 72 in which the insulating portion 71 of the harness 67 is loosely inserted is formed.

The harness 67 is routed along the large diameter portion 63 and then fixed to the bracket 61 by a harness clip 73 provided on the bracket 61. Therefore, when performing a post process such as attaching a connector to the free end side of the harness 67 after attaching the harness 67 to the solenoid valve body 62, the vicinity of the connecting portion 69 between the terminal 66 and the core wire 68 The fragile portion P located at is not bent, and the wire breakage of the harness 67 at the fragile portion P is prevented.

[0004]

[Problems to be solved by the device]

 However, in such a conventional harness disconnection prevention structure, it is necessary to fix the harness 67 to the bracket 61 via the harness clip 73 when connecting the solenoid valve body 62 and the harness 67. This is a factor that reduces the work efficiency in the manufacturing process of the solenoid valve.

Further, the bracket 61 must be provided with the harness clip 73, which causes a problem that the manufacturing cost of the bracket 61, that is, the solenoid valve is increased.

The present invention has been made in view of the above circumstances, and prevents the harness disconnection of the solenoid valve, which can improve the working efficiency in the manufacturing process and reduce the manufacturing cost of the solenoid valve. The purpose is to provide the structure.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, in the present invention, a wiring part having a terminal connected to a coil is provided on the outer periphery of a solenoid valve main body, and a harness is connected to the terminal, while the terminal and the harness are connected. In the structure in which the connection portion with and is insulated and protected by the harness cap, the harness cap is provided with a skirt portion that projects in the extending direction of the harness and surrounds the insulating portion of the harness.

[0008]

[Action]

 In the above configuration, even when the harness is pulled or bent, such as when the connector is attached to the tip side of the harness, the skirt causes the harness to bend in the vicinity of the connection portion with the terminal. Be blocked.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. That is, FIGS. 1 and 2 are external views of a solenoid valve according to the present invention, in which a solenoid valve body 1 has a large diameter portion 2 and a small diameter portion 2 which are integrally formed and have the same central axis. And part 3. A well-known solenoid (not shown) consisting of a bobbin and a coil wound around the bobbin is accommodated in the large diameter portion 2 and is formed integrally with the bobbin on the outer circumference of the large diameter portion 2. The wiring portion 4 is projected. As shown in FIG. 3, the wiring portion 4 is provided with a terminal 5 connected to a lead wire of a coil (not shown) and claws 6 and 6, and as shown in FIG. The core wire 8 is soldered. A connecting portion 9 between the terminal 5 and the core wire 8 is surrounded and protected by a harness cap 10 fitted and fixed to the wiring portion 4.

As shown in FIGS. 1 to 6, the harness cap 10 is a hollow resin member that is open in a direction opposite to the solenoid valve body 1, and is a harness 7 connected to the terminal 5. First accommodating portion 11 that accommodates the upper portion of the core wire 8, second accommodating portion 12 that accommodates the wiring portion 4, and third accommodating portion 14 that is a skirt portion that accommodates the insulating portion 13 side of the harness 7. The second accommodating portion 12 is provided with receiving holes 15, 15 that engage with the claws 6, 6 of the wiring portion 4. The third accommodating portion 14 has a continuous rectangular hole 16 and a circular hole 17 which project from the second accommodating portion 12 in the extending direction of the harness 7 and penetrate to the lower surface side thereof. The insulating portion 13 of the harness 7 is housed in the circular hole 17. The cross section of the circular hole 17 has substantially the same shape as the cross section of the insulating portion 13 of the harness 7. Further, when the harness cap 10 is fitted onto the wiring portion 4, the second housing portion 11 is expanded by the claws 6 of the wiring portion 4, and accordingly, the rectangular hole in the previous period is expanded. Since 16 is also expanded, the insulating portion 13 of the harness 7 is allowed to pass through the rectangular hole 16 and is accommodated in the circular hole 17.

In this structure, the fragile portion P (FIG. 4) of the harness 7 near the connecting portion 9 between the terminal 5 and the core wire 8 of the harness 7 is surrounded by the third accommodating portion 14 of the harness cap 10. Has been done. For this reason, when the harness 7 is attached to the solenoid valve body 1 and then the harness 7 is stretched or bent when performing a post-process such as attaching a connector to the free end side of the harness 7. However, the fragile portion P 1 is not bent, and the wire breakage of the harness 7 in the fragile portion P 1 is prevented in advance.

Therefore, since the wire breakage of the harness 7 can be prevented only by fitting the harness cap 10 onto the wiring portion 4, as described in the conventional example, the harness 7 is attached to the bracket (FIG. 7) attached to the solenoid valve. Since the work of fixing the free end side of the is unnecessary, it is possible to improve the work efficiency in the manufacturing process of the solenoid valve. Moreover, since it is not necessary to provide a harness clip (FIG. 7) for fixing the harness 7 to the bracket, it is possible to reduce the processing cost of the bracket and the manufacturing cost of the solenoid valve.

[0013]

[Effect of the device]

 INDUSTRIAL APPLICABILITY As described above, the present invention provides a structure of a solenoid valve in which a terminal of a wiring portion provided on the outer periphery of a solenoid valve main body and a connection portion of a harness are insulated and protected by a harness cap fitted over the wiring portion. Since the harness cap is provided with a skirt portion projecting in the extending direction of the harness and surrounding the insulating portion of the harness, the skirt portion prevents the harness from being bent near the connection portion. By simply fitting the harness cap onto the wiring portion, disconnection of the harness can be prevented. Therefore, the work efficiency in the manufacturing process of the solenoid valve can be improved, and the manufacturing cost of the solenoid valve can be reduced.

[Brief description of drawings]

FIG. 1 is an external view of a solenoid valve showing an embodiment of the present invention.

FIG. 2 is a side view taken along arrow A in FIG.

FIG. 3 is a plan view of an essential part of FIG.

FIG. 4 is an explanatory diagram corresponding to the side view of FIG.

5 is a bottom view of the harness cap corresponding to FIGS. 3 and 4. FIG.

6 is a perspective view of the harness cap according to FIGS. 3, 4 and 5; FIG.

FIG. 7 is an external view of a solenoid valve showing a conventional example.

FIG. 8 is a sectional view of a B part in FIG.

9 is a perspective view of the harness cap according to FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solenoid valve main body 4 Wiring part 5 Terminal 7 Harness 8 Core wire 10 Harness cap 13 Insulating part 14 Third accommodating part (skirt part) P Weak part

Claims (1)

[Scope of utility model registration request] 1. A wiring portion having a terminal connected to a coil is provided on an outer periphery of a solenoid valve body, and a harness is connected to the terminal, while a connecting portion between the terminal and the harness is externally fitted to the wiring portion. In the electromagnetic valve insulated and protected by the harness cap, the harness cap is provided with a skirt portion projecting in the extending direction of the harness and surrounding the insulating portion of the harness. Breakage prevention structure.