JPH0562130U - Conductive wire seal structure - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the work of sealing the conductive wire. [Structure] The conductive wire 5 connects the inside and outside of the sealed electric device. The crimping component 7 is tightened by crimping a part of the conductive wire 5 from the outer periphery of the film to seal the inside of the conductive wire 5. The seal portion 8 seals around the crimp component 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement in a sealing structure of a conductive wire that connects the inside and the outside of a sealed electric device such as an automatic transmission for a vehicle in which an electric device is arranged in a casing.

[0002]

[Prior Art]

 Conventionally, as a sealing structure for a conductive wire of this type, as in the techniques disclosed in Japanese Utility Model Publication No. 60-183532 and Japanese Utility Model Publication No. 63-20317, the coating in the middle of the conductive wire is peeled off and this portion is removed. By pouring the solder into the gap, the gap between core wires in the conductive wire is blocked. This improves the sealing effect in the conductive wire.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional technique, it is extremely difficult to peel off the film in the middle of the conductive wire, and automatic processing is also difficult. The present invention has been made in view of the above problems, and an object of the present invention is to provide a conductive wire seal structure capable of easily performing a sealing operation in a conductive wire.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention crimps a part of a conductive wire that connects the inside and the outside of a hermetically sealed electrical device from the outer periphery of the film of the conductive wire with a crimping part, and seals the crimped part with a seal part. Thus, a conductive wire seal structure is constructed.

[0005]

【Example】

 A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows an embodiment applied to an automatic transmission of a vehicle and shows a state in which an electric connection device is attached to a casing 1 of the automatic transmission. The body 2 of the electrical connecting device has a substantially cylindrical shape, and the cylindrical fitting portion 2a that can fit in the hole 1a of the casing 1 is an annular groove for placing the O-ring 3 for sealing. 2b. Further, the body 2 has four leg portions 2c on the right end side in FIG. 1, and a stopper portion 2d is provided at the tip of the leg portion 2c. The outer diameter portion of the stopper portion 2d has a tapered surface to facilitate the insertion of the casing 1 into the hole 1a. A stopper portion 2e, which serves as a stopper in the insertion direction of the body 2, is provided on the left end side of the body 2 in FIG. The inner diameter of the body 2 is provided with a small diameter portion 2f, and the small diameter portion 2f is provided with a cylindrical elastic member 4 having an enlarged diameter portion that fits into the small diameter portion 2f and is stopped by the step portion 2g. ing. The elastic member 4 is provided with a plurality of through holes 4a penetrating the elastic member 4 in the axial direction, and an enlarged large diameter portion 4c extending to the end surface 4b of the elastic member 4 is provided at an end portion of the through hole 4a. Has been formed.

A conductive wire 5 that connects the inside and outside of the casing 1 is inserted into each through hole 4 a in a close contact state. This conductive wire 5 has heat resistance and oil resistance, and as shown in FIGS. 2 to 4, a large number of core wires 5a are covered with a film 5b. The conductive wire 5 has one end connected to an electric device (not shown) such as a solenoid inside the casing 1 and the other end connected to a control device (not shown) such as a control unit outside the casing 1. It The plurality of conductive wires 5 are arranged inside the resin pipe 6 in a bundled state.

In the large-diameter portion 4c of the through hole 4a, the conductive wire 5 is crimped with a crimping component 7 from a part of the lengthwise direction from the outer periphery of the coating 5b. This crimping component 7 is composed of a metal or other plate material or wire material such as a connection terminal or clamp, and is crimped by tightening it from the outer periphery of the film 5b as shown in FIGS. The gaps between the core wires 5a and between the core wires 5a and the film 5b are blocked, that is, sealed. Therefore, oil inside the casing 1 does not penetrate into the conductive wire 5 and leak to the outside. Further, as shown in FIG. 1, the crimping component 7 has a function of positioning the conductive wire 5 in the lengthwise direction by contacting the stepped surface of the large diameter portion 4c.

A seal portion 8 is formed and sealed in the body 2 and the large diameter portion 4 c by injecting and hardening a resin solution such as an epoxy resin. Along with this, the portion of the conductive wire 5 crimped by the crimping component 7 is also sealed by the seal portion 8. Further, as shown in FIG. 3, the conductive wire 5 is configured so that the seal portion 8 can be broken or cracked by the biting of the end portion 7a due to the crimping of the crimping component 7 as shown in FIG. Since the resin solution to be formed permeates between the core wires 5a and hardens, the effect of sealing the inside of the conductive wire 5 is further improved.

[0009]

[Effect of the device]

 As described above in detail, according to the configuration of the present invention, a part of the conductive wire is pressed from the outer periphery of the film, and the crimped part is sealed by the seal portion, so that the inside of the conductive wire can be sealed very easily. be able to.

[Brief description of drawings]

FIG. 1 is an assembled sectional view showing an embodiment according to the present invention.

FIG. 2 is an enlarged sectional view of an essential part showing a conductive wire and a crimping component in FIG.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is an exploded perspective view of the conductive wire and the crimping component in FIG.

[Explanation of symbols]

 5 Conductive wire 5a Core wire 5b Coating 7 Crimping part 8 Seal part

Claims (1)

[Scope of utility model registration request] 1. A part of a conductive wire for connecting the inside and the outside of a hermetically sealed electric device is crimped from the outer periphery of a film of the conductive wire with a crimping part, and the crimped part is sealed with a seal portion. Conductive wire seal structure.