JPH11353998A - Cable fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance aseismatic performance and shock resistant performance of the connecting part of a cable to a vacuum relay by installing a cable fixing part integratedly fixed to a component to be connected to the cable and supporting and fixing the cable. SOLUTION: Support parts 6a, 6b are fixed to a vacuum relay 1 with a binder 7 and united with the vacuum relay 1. A wiring cable 2 is bonded to the grooves 8 of the support parts 6a, 6b. The difference between move of the vacuum relay 1 and that of the wiring cable 2 caused externally by such as vibration or shock becomes extremely small, and deformation force is hardly transmitted to a core wire 21. The aseismatic performance and shock resistant performance in the soldered connecting part are enhanced. Since the support parts 6a, 6b are fixed only to the vacuum relay 1 and do not come into contact with a chassis 4 and other parts, even if vibration or shock is applied to the vacuum relay 1, move of the support parts 6a, 6b is not obstructed, and the support parts 6a, 6b are moved together with the vacuum relay 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a structure for fixing a cable to a vacuum relay or the like.

[0002]

2. Description of the Related Art As conventional cable connection structures, Japanese Patent Application Laid-Open Nos. 7-87656, 59-201337, 54-95393, 60-18683, and the like are disclosed. For example, FIG. 3 is a diagram showing a conventional cable connection structure to a vacuum relay. 1 is a vacuum relay main body, 2 is a wiring cable, and 3 is a vacuum relay terminal.

[0003] The core wire 21 of the distribution cable 2 is connected to the terminal 3 by soldering. In addition, the vacuum relay 1
It is fixed to the chassis 4 by screws. The distribution cable 2 is fixed to a nearby chassis by a clamp 5. The wiring cable 2 between the clamp 5 and the terminal 3 is free.

[0004]

In the conventional cable fixing structure of a vacuum relay or the like, since the wiring cable 2 moves freely between the terminal 3 and the clamp 5 due to vibration or impact, the soldering portion of the terminal 3 becomes excessively large. There is a problem in that an excessive force is concentrated and the core wire 21 is disconnected at the terminal 3.

[0005] The present invention has been made to solve the above problems, and has as its object to improve the seismic resistance and shock resistance of a connection portion of a cable to a vacuum relay or the like.

[0006]

A cable fixing structure according to the present invention includes a part connected to a cable, and a cable fixing part integrally attached to the part and supporting and fixing the cable. Features.

The above component is a vacuum relay.

[0008] The cable fixing portion is characterized in that the cable fixing portion is attached away from other components so as not to come into contact with other components even when the components are displaced.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a plan view,
FIG. 2 is a sectional view taken along the line AA of FIG. 1 and 2, reference numerals 6a and 6b denote half-support portions (shaped like an ashtray split in half) for supporting a distribution cable;
Reference numeral 7 denotes a band attached around the support portions 6a and 6b, which are halved, and a binder for fixing the support portions 6a and 6b to the vacuum relay. Groove. In this case, the distribution cable 2 is adhesively fixed to the groove 8.

The support portions 6a and 6b are fixed to the vacuum relay 1 by a binder 7, and are integrated with the vacuum relay 1. The distribution cable 2 is bonded to the grooves 8 of the support portions 6a and 6b. For this reason, since the difference in movement between the vacuum relay 1 and the wiring cable 2 with respect to vibration or impact, which is an external force, becomes extremely small, it is difficult for the deformation force to be transmitted to the core wire 21. Therefore, the stress applied to the core wire 21 is reduced, and the vibration resistance and shock resistance of the soldered connection portion are improved. The support portions 6a and 6b are fixed only to the vacuum relay 1, and do not contact the chassis 4 or other components. Therefore, even if vibration or impact is applied to the vacuum relay 1, there is nothing that hinders the movement of the support portions 6a and 6b, and the support portions 6a and 6b can perform the same movement as the vacuum relay 1. For example, even when the vacuum relay 1 is tilted, the support portions 6a and 6b are separated from the chassis 4 and other components by predetermined distances L1 and L2, respectively, so that they can perform the same movement as the vacuum relay 1.

As described above, this embodiment is characterized in that the structure surrounding the periphery of the vacuum relay (support portion) is provided in the vacuum relay main body, and the wiring to the vacuum relay is fixed and supported by this structure. The cable fixing structure of the vacuum relay has been described. By providing the support portion in the vacuum relay main body, the wiring cable 2 can be fixed very close to the terminal 3, so that the exposed portion of the core wire, which is weakest against external force, has vibration resistance,
Improves impact resistance.

In the above-described embodiment, the bonding is used as a means for fixing the distribution cable 2 and the groove 8 of the support portions 6a and 6b. However, the same effect can be obtained by screwing or clamping. Further, the support portions 6a and 6b are configured in half, but may be configured in three or four. Further, the support portions 6a and 6b surround the periphery of the vacuum relay, but may be a part. In addition, support section 6
Is fixed by the binder 7, but may be screwed.
Further, instead of the vacuum relay 1, electronic components or other components for connecting the distribution cable 2 may be used. Further, the distribution cable 2 may be an optical cable. Also, instead of chassis 4,
It may be a substrate or a base.

[0013]

As described above, according to the present invention, the wiring cable and the components such as the vacuum relay can be substantially integrated with each other, so that the vibration resistance and impact resistance of the connection portion of the wiring cable are improved. I do.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a diagram showing a configuration of a connection portion of a wiring cable of a conventional vacuum relay.

[Explanation of symbols]

1 Vacuum relay, 2 wiring cable, 6a, 6b support, 7 binder, 8 grooves, 21 cores.

Claims (3)

[Claims] 1. A cable fixing structure comprising: a component connected to a cable; and a cable fixing portion integrally attached to the component and supporting and fixing the cable. 2. The cable fixing structure according to claim 1, wherein said component is a vacuum relay. 3. The cable fixing structure according to claim 1, wherein the cable fixing portion is attached away from another component so that the component does not contact another component even if the component is displaced.