JPS6311660Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a test clip used for checking electronic parts.

A conventional test clip of this type has a structure shown in FIGS. 1 and 2. In the drawing, A ₁ and A ₂ are _a pair of knobs;
A ₂ has a plurality of conductors C having spring properties embedded in parallel in flat insulators B ₁ and B ₂ , and insulators B ₁ and B ₂
The end of the conductor C protruding from the lower end of the stylus D is used as the stylus D. And this pair of knobs A ₁ and A ₂
connect the center part with the support shaft E, and connect both knobs A ₁ , A ₂
The stylus D can be opened and closed freely. Further, a compression spring F is interposed between the knobs A ₁ and A ₂ above the support shaft E to always bias the stylus D to the closed state.

Next, an example of the use of the above-mentioned clip will be explained with reference to FIGS. 3 and 4. In the figure, G is a printed wiring board, and H is mounted on the printed wiring board G.
An electronic component such as an LSI, _H1 is a lead of the electronic component H.

Therefore, when the upper ends of both knobs A ₁ and A ₂ are pinched and force is applied inward, the distance between the stylus D increases against the elasticity of the spring F. Next, by aligning both stylus D with the outside of lead H ₂ of electronic component H and releasing the force on knobs A ₁ and A ₂ , both stylus D will touch lead H ₁ due to the restoring force of spring F. to clamp.

However, in the conventional test clip, as shown in Fig. 4, the stylus D is pressure-bonded to the lead _H1 , so if the flux I from soldering is attached to the surface of the lead _H1 . Because of this flux I, the stylus D and the lead _H1 may not come into contact with each other and may not be electrically conductive, which hinders the work. Therefore, if Flux I is washed away to cover this defect, the work will be delayed accordingly.

The present invention attempts to solve the above-mentioned drawbacks by bending the stylus of both knobs connected to each other so that they can be opened and closed inward, and also providing a presser part that presses the electronic component so that it can move up and down. By biasing the holding part downward with a spring, the stylus is linearly crimped and slid against the electronic component to be contacted, thereby creating a test clip that achieves good contact. The purpose is to provide.

Hereinafter, the present invention will be explained based on the embodiments shown in the drawings. FIG. 5 is a front view of a test clip according to the present invention, FIG. 6 is a side view thereof, and FIG. 7 is a plan view thereof.

In the above drawing, 1A and 1B are a pair of knobs, and these knobs 1A and 1B are connected to a flat insulator 2.
A plurality of conductors 3 having spring properties are buried in parallel in A and 2B, and the ends of the conductors 3 protruding from the lower ends of the insulators 2A and 2B are used as stylus 3a and 3b. The above-mentioned two knobs 1A and 1B are connected at the center by a support shaft 5 via a connecting body 4, and both knobs 1
The stylus A, 1B stylus 3a, 3b can be opened and closed freely. Then, both the stylus needles 3a and 3b are bent so that their tips face inward. Further, a compression spring 6 is interposed between the knobs 1A and 1B above the connecting body 4 to constantly urge both the stylus 3a and 3b inward. Further, two presser parts 7 are disposed in the center of the connecting body 4 so as to be movable up and down, and their tips 7a are positioned in the center of both the stylus 3a, 3b, and a spring 8 is attached to the presser parts 7. is provided to urge the tip portion 7a downward. Reference numeral 9 denotes a stopper washer fitted to the upper end of the presser portion 7.

10 is a printed wiring board, 11 is an electronic component such as an LSI, and 12 is a contact object such as a lead of the electronic component 11.

Next, an example of the use of the present invention will be described with reference to FIGS. 8 and 9.

First, when the upper ends of the knobs 1A, 1B are pressed inward and a pressing force is applied inward, the distance between the stylus 3a, 3b increases against the elastic force of the spring 6. Next, if both the stylus needles 3a and 3b are made to correspond to the outside of the object to be contacted 12 of the electronic component 11, and the tips of both the stylus needles 3a and 3b are brought into contact with the surface of the printed wiring board 10,
The tip 7a of the holding portion 7 comes into contact with the electronic component 11 and rises against the elastic force of the spring 8. Therefore, if the pressing force of both knobs 1A and 1B is released, both stylus 3
The tips of the stylus a, 3b clamp the object 12 and press it linearly, and the knobs 1A, 1B rise slightly due to the restoring force of the spring 8, so that both the stylus 3a, 3
The tip of b slides on the object 12 to be contacted. In this way, the stylus 3a, 3b slides while linearly compressing the object 12, so if the flux 13 is attached to the object 12, the stylus 3a, 3b
b itself scrapes off this flux 13, eliminating poor contact caused by the flux 13.

In addition, in the above embodiment, a plurality of stylus needles 3a, 3b are used.
are shown in parallel, but these stylus 3a, 3b
The number may be singular, and in this case, it can be used as a test clip for wrapping terminals, etc. Further, although the presser portion 7 and the spring 8 are used, the same effect can be obtained by using an elastic body such as rubber or sponge.

As mentioned above, the present invention consists of a pair of knobs 1 with stylus 3a, 3b protruding from the ends of insulators 2A, 2B.
In a test clip in which both the stylus A and 1B were connected by a support shaft 5 so that both stylus needles 3a and 3b could be opened and closed, and both the stylus needles 3a and 3b were urged to close by a spring 6, the stylus needles 3a and 3b were The tips of the stylus 3b are bent inwardly, and a presser portion 7 for crimping the electronic component 11 is provided at the center of both knobs 1A, 1B. It linearly presses against the object 12 and slides on it. Therefore, even if the flux 13 is attached to the object to be contacted 12, this flux 13 can be removed by the stylus 3a,
Since the flux 3b itself is removed, there is no contact failure due to the flux 13, and there is no need for flux removal work.

[Brief explanation of the drawing]

Figure 1 is a front view of a conventional test clip.
FIG. 2 is a side view of the same, FIGS. 3 and 4 are explanatory views of the conventional example, FIG. 5 is a front view of the test clip according to the present invention, FIG. 6 is a side view of the same, and FIG. In the same plan view, FIGS. 8 and 9 are illustrations for explaining the use of the test clip according to the present invention. 1A, 1B...knob, 2A, 2B...insulator, 3a, 3b...stylus, 7...presser section, 8...
Spring.

Claims (1)

[Scope of utility model registration request] In a test clip, a pair of knobs with stylus protruding from the end of an insulator were connected by a support shaft so that the stylus could be opened and closed, and a spring was used to urge both stylus needles to close. This test clip is characterized by having the tip of the needle bent inward, and a presser part for crimping electronic components in the center of both knobs.