CN201203629Y

CN201203629Y - Probe

Info

Publication number: CN201203629Y
Application number: CNU2008200476304U
Authority: CN
Inventors: 刘胜丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-12
Filing date: 2008-05-12
Publication date: 2009-03-04
Anticipated expiration: 2018-05-12

Abstract

The utility model relates to a probe for a test fixture for a printed circuit board. The utility model solves the technical problem of the blunt flaw of a current probe, and provides a sharp probe capable of effectively puncturing insulating paint when testing. The two ends of the probe are pointed cone-shaped, and each of the cone angles is between 40 DEG and 20 DEG. Practice shows that with the cone angles being in the scope, the probe can effectively puncture insulating paint, while not cause excessive damage to a printed circuit board. As an optimization, the cone angle of each pointed end is 30 DEG. Practice shows that such cone angle has the best effect. The probe has the advantages of simple structure and accurate test, and is suitable for various test fixtures.

Description

Probe

Technical field

The utility model relates to the probe that a kind of printed wiring board measurement jig is used.

Background technology

The tested point of high density printed wiring board is too little, and some houses insulator, during test, needs accurate contact measured point and punctures insulator.As described in Figure 1, existing probe 1 end is more blunt, and its cone angle (promptly passing through the angle between two buses in cone axis cross section) is generally right angle or obtuse angle, indivedual insulator thicker parts on the printed wiring board, and probe can't puncture, can not the contact measured point, cause erroneous judgement.

The utility model content

The technical problems to be solved in the utility model is how to overcome the existing more blunt defective of probe, provides a kind of comparatively sharp-pointed, can effectively puncture the probe of insulator during test.

For solving the problems of the technologies described above, this probe two ends are sharp cone distal, and its cone angle is between 40 °～20 °.Facts have proved: cone angle is in this scope, and probe can effectively puncture insulator, is unlikely again printed wiring board is caused excessive injury.

As optimization, its most advanced and sophisticated cone angle is 30 °.Facts have proved: such cone angle, effect is best.

That the utility model probe has is simple in structure, test advantage accurately, is applicable to various measurement jigs.

Description of drawings

Below in conjunction with accompanying drawing this probe is described further:

Fig. 1 is the structural representation of existing probe;

Fig. 2 is the structural representation of this probe embodiment one;

Fig. 3 is the structural representation of this probe embodiment two;

Fig. 4 is the structural representation of this probe embodiment three.

Embodiment

Embodiment one: as shown in Figure 2, this probe 1 two ends are sharp cone distal, and its cone angle is 30 °.

Embodiment two: as shown in Figure 3, this probe 1 two ends are sharp cone distal, and its cone angle is 40 °.

Embodiment three: as shown in Figure 4, this probe 1 two ends are sharp cone distal, and its cone angle is 20 °.

Claims

1, a kind of probe is characterized in that: its two ends are sharp cone distal, and its cone angle is between 40 °～20 °.

2, probe according to claim 1 is characterized in that: its most advanced and sophisticated cone angle is 30 °.