JPS6244365Y2 - - Google Patents

Description

[Detailed description of the invention] This invention consists of a plurality of contact probers, each of which is supported by a holder connected to a tester with the probe retractably protruding from the holder, which is held parallel to an insulating plate at a predetermined pitch. The present invention relates to an improvement of a continuity test device configured to perform a continuity test by pressing the tip of a probe against a test object by applying pressure to an insulating plate.

A conventional continuity test device of this type is shown in FIG.
In the figure, 1 is an insulating plate, and 2 is a plurality of contact probers held parallel to the insulating plate 1 in a predetermined arrangement. The contact prober 2 includes a holder 3 that is connected to a tester (not shown), and a probe 4 that is retractably projected and supported by the holder 3.
The holder 3 is press-fitted into a hole provided in the insulating plate 1 and fixed. A flange 5 is formed on the holder 3, and the flange 5 is engaged with the insulating plate 1 to position the holder 3. In FIG. 1, the gap between the press-fitting portions of the holder 3 is shown to be larger than the actual size for convenience. If this gap is too small, the holder 3
A certain amount of size is required because the probe 4 will not move smoothly back and forth due to contraction during press-fitting.

When performing a continuity test on a test object using this continuity test device, the contact part 6 at the tip of the probe 4 is faced to the measurement point on the test object, the insulating plate 1 is pressurized, and the contact part 6 is pressed against the measurement point. In this case, if the test object has deformation such as unevenness or warping, a lateral force will be applied to the contact part 6, and there will be some gap where the holder 3 fits into the insulating plate 1. This causes the contact prober 2 to be tilted and shifted. By the way, in recent years, the density of test objects such as printed circuit boards has been increasing, and as a result, the arrangement pitch of the contact probers 2 has become smaller, and the gap a between the flanges 5 of adjacent contact probers 2 has also become smaller. It is becoming. If deformation such as inclination as described above occurs there, the shoulder 7 of the adjacent flange 5 will be shot as shown in FIG.

In order to solve this problem, a method of fixing the holder 3 by filling the gap with adhesive has been used, but this is not a good idea because it is difficult to remove the holder 3 during maintenance or the like.

This invention is intended to solve these problems, and allows reliable continuity testing to be performed without causing shoots between adjacent contact probers.
Moreover, it is an object of the present invention to provide a continuity test device that is easy to maintain.

Next, an embodiment of the present invention will be described with reference to FIGS. 3 to 5.

FIG. 3 is a front view of main parts showing an embodiment of the continuity testing apparatus according to the present invention, in which numeral 11 is an insulating plate and 12 is a contact prober.

The contact prober 12 consists of a holder 13 that protrudes a predetermined amount from the insulating plate 11 and a probe 14 supported by the holder 13. A flange 15 is formed on the protrusion of the holder 13, and a contact probe 14 is formed on the tip of the probe 14. A portion 16 is formed. Also,
An insulating collar 17 is fitted and fixed to the protrusion of the holder 13. The outer diameter of the insulating collar 17 is larger than the outer diameter of the flange 15.

This contact prober 12 is press-fitted into the insulating plate 11 with the insulating material collar 17 locked to the insulating material 11 to constitute a continuity test device.

When performing a continuity test on a test object using a continuity test device equipped with such a contact prober 12, the contact prober 12 may be deformed, such as tilting, as in the conventional case. Since the insulating collars 17 having an outer diameter larger than the outer diameter of the flange 15 are fitted and fixed, adjacent insulating collars 17 come into contact with each other.
It is possible to prevent shoots.

The contact probers 12 provided with the insulating collars 17 in the above description are arranged in a staggered manner as shown in FIG. and insulation color 17
The contact prober 12' between the contact probers 12 provided with a
The deformed contact prober and the adjacent contact prober have an insulating collar 17 and a flange 15.
Since contact is made between the two sides, shooting is prevented.

As described above, according to the present invention, insulating material collars are provided in a staggered manner, and the protrusion from the insulating plate of at least one of the holders of adjacent contact probers has a diameter larger than the maximum diameter of the protrusion. Since the insulating collar of the outer diameter is fitted and fixed, the insulating collar contacts the holder of the adjacent contact prober when the contact prober is deformed. Therefore, it is possible to perform a reliable continuity test by preventing shot from occurring between the contact probers.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional continuity test device, Fig. 2 is an explanatory diagram of shot occurrence when this device is used, Fig. 3 is a front view showing an embodiment of the continuity test device according to the present invention, and Fig. 4 is a front view of a conventional continuity test device. Contact prober layout diagram, No. 5
The figure is a partial front view of the same. In the figure, 11 is an insulating plate; 1
2 and 12' are contact probers, 13 is a holder, 14 is a probe, 15 is a flange, 16 is a contact portion, and 17 is an insulating material collar.

Claims (1)

[Scope of utility model registration request] Each of the holders of a plurality of contact probers, each of which has a holder connected to a tester with a probe retractably projected and supported, is held in parallel to an insulating plate at a predetermined arrangement, and the insulating plate is applied. In a continuity test device that performs a continuity test by pressing the tip of the probe against a test object by pressing, the holder of at least one of the adjacent contact probers is made to protrude a predetermined amount from the insulating plate, and the protrusion of the holder is 1. A continuity testing device comprising: an insulating collar having an outer diameter larger than the maximum diameter of the protruding portion, which is arranged in a staggered manner and fitted and fixed to the protruding portion.