JPS6242379Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a withstand voltage test jig for a flat cable, which is used when conducting a withstand voltage test of a flat cable.

In general, a withstand voltage test for a flat cable, which consists of a large number of parallel conductors sandwiched between upper and lower insulating tapes, involves stripping the ends of the flat cable and bundling the exposed conductors. This is done by applying a high voltage to the conductor after connecting it to a tester and immersing the insulation coating in water to ground it.

However, in such a voltage resistance test method, the measurement work is complicated because the end of the flat cable must be stripped and the exposed conductors must be bundled together.

This invention was made based on the above circumstances,
To provide a withstand voltage test jig for a flat cable, which can measure the withstand voltage of the flat cable as it is without stripping the end of the cable.

In order to achieve the above object, the withstand voltage test jig of the present invention includes an upper insulating member, and a plurality of wire core protrusions on the bottom surface of which are arranged at intervals from the upper insulating member and engage with the core protrusions of the flat cable to be tested. a lower insulating member in which approximately semicircular grooves are formed and through holes are formed at the tops of these grooves; A conductive metal body from which a plurality of sharp blades longer than the length of the through-hole protrude at positions corresponding to the through-holes of the lower insulating member, and a conductive metal body and the lower insulator directly or with another member. It is characterized by consisting of a coil spring inserted through the coil spring.

The present invention will be explained below based on the drawings of one embodiment. As shown in Fig. 1, the present invention includes upper and lower insulating members 1 and 2 that are arranged apart from each other, and a lead wire 3 that is led out from an arbitrary location and is arranged vertically freely between the upper and lower insulating members. It is mainly composed of a conductive metal body 4.

The upper and lower insulating members 1 and 2 are made of hard rubber, plastic material, or metal material whose outer surface is coated with plastic material, and the two are integrally connected, for example, as described below. That is, shafts 6 and 6', in which coil springs 5 and 5' are inserted, are vertically provided on the lower surface near both ends of the upper insulating member 1, respectively. The tips of these shafts are loosely inserted into insertion holes 8, 8' formed in the edges 7, 7' of the lower insulating member 2, which has a dish-shaped cross section. The shaft is in the form of a bolt, and is inserted into the insertion holes 8 and 8' from the lower position of the lower insulating member.
The tip may be fixed to the lower surface of the upper insulating member 1.

A conductive metal body 4 made of a copper plate or the like is connected to the lower surface of the upper insulating member 1 by a screw or the like formed at the upper end, and a conductor spacing L equal to the conductor spacing L of the flat cable 9 shown in FIG. 2 is attached to the lower end. A large number of sharp blades 10 are formed at intervals.

Semicircular grooves 12 that engage with the flat cable core convex stripes 11 are formed at predetermined intervals on the bottom surface of the lower insulating member 2, and at the top of the semicircular grooves,
Through-hole 1 through which each sharp blade 10 of the conductive metal body passes freely
3 are formed respectively.

Next, we will explain how to conduct a voltage resistance test on a flat cable using the jig of the present invention.

First, as shown in FIG. 3, the flat cable 9 to be measured is placed on the pedestal 14, and then the jig 1 of the present invention is placed.
5 is placed on the wire core protruding portion 11 of the flat cable so that the semicircular groove 12 is completely fitted. However, if the upper insulating member 1 is manually pushed down in the direction of the arrow,
A sharp blade 10 made of a conductive metal body passes loosely through the through hole 13 and pierces the insulator 16 of the flat cable.
Its tip touches or pierces the conductor 17.

In this state, ground the insulated side of the flat cable 9 and connect the lead wire 3 to the measuring device (not shown).
The withstand voltage test is performed using this connection. After the test is completed, when the pressing force applied to the upper insulating member 1 is released, the conductive metal body returns to its original state due to the spring force of the coil springs 5, 5'.

The pedestal 14 is preferably made of an insulating material such as rubber or plastic, and has a groove 18 formed on its upper surface to engage with the core protrusion 11 of the flat cable.

In the present invention described above, a withstand voltage test can be performed simply by placing the cable under test on a pedestal and pushing down the upper insulating member of the jig of the present invention, so there is no need to strip the cable ends one by one as in the past, and the conductor There is no need to bundle them together. Therefore, in the present invention, a withstand voltage test of a flat cable can be efficiently performed with a single touch.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a flat cable pressure test jig according to the present invention, FIG. 2 is a cross-sectional view of the flat cable, and FIG. 3 is an explanatory view showing a pressure test condition of the flat cable. 1... Upper insulating member, 2... Lower insulating member, 3
... Lead wire, 4 ... Conductive metal body, 5, 5'...
...Coil spring, 6,6'...Shaft, 1
0...Sharp blade, 12...Semicircular groove, 13...Through hole.

Claims (1)

[Scope of utility model registration request] An upper insulating member, and a plurality of approximately semicircular grooves arranged at intervals from the upper insulating member on the bottom surface thereof to engage with the core protrusions of the flat cable to be tested, and the top of each of these grooves. A lower insulating member is formed with a through hole in the lower insulating member, and a lead wire is arranged between these insulating members so as to be vertically movable, and a lead wire is led out from an arbitrary point. It is characterized by comprising a conductive metal body from which a plurality of sharp blades protruding which are longer than its length, and a coil spring inserted between the conductive metal body and the lower insulator directly or through another member. Pressure test equipment for flat cables.