JPH08292225A - Structure of probe pin connector - Google Patents

Abstract

PURPOSE: To provide a probe pin connector structure which can easily and surely realize an electric contact between a terminal of a printed circuit board and a probe pin without damaging the terminal of the printed circuit board. CONSTITUTION: The structure has a first base 1 where a probe pin 3 is projected from an upper face, a second base 9 having a terminal insertion part 13 to which a terminal 11A of a substrate 11 to be inspected is inserted and an outline positioning pin 15 for positioning the terminal 11A of the base 11 to the probe pin 3, and a lock clamp 17 for locking/unlocking the second base 9 to the first base 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board inspecting apparatus or the like, which facilitates electrical contact between the inspecting apparatus and an object to be inspected which is an edge connector of a printed wiring board, especially an FPC (flexible printed wiring board). It relates to the structure of the probe pin connector so as to surely realize.

[0002]

2. Description of the Related Art Conventionally, a contact structure using a connector is shown in FIG.
, The connector 103 fixed to the board 101 of the inspection machine is connected to the printed wiring board 10 to be inspected.
The terminal 105A of No. 5 is inserted to check the electrical contact.

In the contact structure using probe pins, as shown in FIG. 4, the probe pins 107 are arranged on a base plate (substrate) 109, and the terminals 105A of the printed wiring board 105 to be inspected are the probes. Aligned with pin 107. A fixed block 111 provided on the base plate 109 is provided with a clamp 115 which is rotatable around a pin 113 as a fulcrum.

Therefore, the clamp 115 has the pin 1
When the clamp 115 is rotated from the top to the bottom, the terminals 10 of the printed wiring board 105 are
5A is pressed to make electrical contact.

[0005]

By the way, the conventional contact structure using the connector shown in FIG. 3 has a drawback that the terminal 105A of the printed wiring board 105 is damaged. This is a great pain in the inspection performed before the printed wiring board 105 is shipped as a product.

Further, in the conventional contact structure using the probe pin shown in FIG. 4, the terminal 10 of the printed wiring board 105 is used.
Since the positional relationship between the 5A and the probe pin 107 is determined by a separate structure such as a base plate, there is a drawback that accurate positioning is difficult. This is particularly remarkable in flexible printed wiring boards (FMC). Further, there is a problem that the pressing force is affected by the spring constant of the clamp 115 used for pressing, the spring constant used for the probe pin 107, and the configuration of the terminal 105A of the printed wiring board 105.

An object of the present invention is to provide a probe pin / connector structure for easily and surely achieving electrical contact between a terminal of a printed wiring board and a probe pin without damaging the terminal of the printed wiring board. To provide.

[0008]

In order to achieve the above object, the structure of a probe pin connector of the invention according to claim 1 is a first base provided with the probe pin protruding from the upper surface, and a substrate to be inspected. A second base having a terminal insertion part for inserting the terminal of the board, an outer shape positioning pin for positioning the terminal of the substrate to the probe pin, and the second base.
A lock clamp for locking and unlocking the base with respect to the first base is provided.

The structure of the probe pin connector of the present invention according to claim 2 is characterized in that a connector positioning hole and a locking hole are formed in the first base and the second base, respectively.

[0010]

With the structure of the probe pin connector of the invention according to claim 1 as described above, the lock clamp is unlocked, and the terminal of the printed wiring board is in a state where the second base is raised with respect to the first base. Insert into the terminal insertion part. The inserted terminal and the probe pin are easily and accurately positioned by the outer shape positioning pin. In this state, the second base is lowered and clamped by the lock clamp, so that the electrical contact between the terminal of the printed wiring board and the probe pin is easily and surely realized. Therefore, the probe pins are brought into contact with each other with low contact resistance without damaging the terminals of the printed wiring board.

In the structure of the probe pin connector according to the second aspect of the present invention, the connector positioning hole and the locking hole are formed in the first base and the second base, respectively. Positioned and fixed for use.

[0012]

Embodiments of the present invention will be described in detail below with reference to the drawings.

With reference to FIGS. 1 and 2, a rectangular first base 1 serving as a substrate of an inspection machine is provided.
A plurality of vertically extending probe pins 3 are mounted on the right side of the base 1 in FIG. 1, and the tips of the probe pins 3 slightly project from the upper surface of the first base 1.

A lower end of a center bolt 5 is attached to the central portion of the first base 1. This center bolt 5
The second base 9 is provided with the spring 7 interposed therebetween. Therefore, the second base 9 is always urged upward by the urging force of the spring 7.

On the right side of the second base 9 in FIG. 1, there is provided a terminal insertion portion 13 into which the terminals 11A of the plurality of printed wiring boards 11 to be inspected are inserted. External positioning pins 15 are provided in front of and behind the terminal insertion portion 13 (up and down in FIG. 2).

A lock clamp 17 is attached to the first base 1.
The lower part of the pin is rotatably provided by a pin 19. Also,
A connector positioning hole 21 is formed in the upper and lower portions on the left side of the first base 1 in FIG. Is formed with a locking hole 23.

When used in an inspection machine or the like with the above structure, the positioning hole 21 is inserted into a positioning pin (not shown) provided in the base of the inspection machine or the like, and then the bolt 25 is passed through the locking hole 23. The first base 1 is used by being fixed to a base such as an inspection machine.

When the lock clamp 17 is removed from the upper end of the second base 9 and unclamped, the second base 9 is lifted by the urging force of the spring 7. In this state,
The terminal 11A of the printed wiring board 11 to be inspected is inserted into the terminal insertion portion 13. The positions of the inserted terminals 11A and the probe pins 3 can be easily and accurately determined by the probe pins 3 and the outer shape positioning pins 15 which are arranged so as to satisfy the required number of terminals and pitches.

When the second base 9 is lowered and locked by the lock clamp 17 in this state, the probe pin 3 and the terminal 11A are in good contact with each other, so that electrical contact is easily and surely realized.

Therefore, since the probe pin 3 is used for contacting the terminal 11A, a good contact with low contact resistance can be obtained, so that damage to the terminal 11A can be reduced. In the structure of this embodiment, since the pin socket is embedded, the probe pin 3 can be selected within a range where the shape of the socket used matches the shape and the probe pin 3 can be easily replaced. Moreover, by selecting the probe pin 3, the contact force, the number of terminals, and the pitch can be freely selected. Since the probe pin 3 and the lock clamp 17 are provided on the first base 1, the probe pin 3 and the lock clamp 17 are integrated and strong against vibration during inspection or the like.

Furthermore, since the connector positioning hole 21 and the locking hole 23 are formed in the first base 1, they can be easily attached to and detached from a required base such as an inspection machine and can be carried. Can be used anywhere.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes.

[0023]

As can be understood from the above description of the embodiments, according to the invention of claim 1, the probe pin is used for contact with the terminal of the printed wiring board.
Good contact with low contact resistance can be obtained, scratches on the terminals are reduced, and electrical contact can be easily and reliably realized. The first base is provided with a probe pin and a lock clamp, which are integrated with each other to be resistant to vibration during inspection.

According to the second aspect of the invention, since the connector positioning hole and the locking hole are formed in the base, the base can be positioned and fixed to a base such as a necessary inspection machine when needed. .

[Brief description of drawings]

FIG. 1 is a probe pin of one embodiment for carrying out the present invention.
It is a front view which shows the structure of a connector.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view showing a contact structure using a conventional connector.

FIG. 4 is a front view showing a contact structure using a conventional probe pin.

[Explanation of symbols]

 1 1st base 3 Probe pin 9 2nd base 11 Printed wiring board 11A terminal 13 Terminal insertion part 15 External positioning pin 17 Lock clamp

Claims (2)

[Claims] 1. A first base provided with a probe pin protruding from an upper surface, a terminal insertion portion into which a terminal of a board to be inspected is inserted, and an outer shape positioning pin for positioning the terminal of the board to the probe pin. A structure of a probe pin connector, comprising: a second base; and a lock clamp for locking and unlocking the second base with respect to the first base. 2. The structure of a probe pin connector according to claim 1, wherein a connector positioning hole and a locking hole are formed in the first base and the second base, respectively.