JP2000067954A - Card edge connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the insertion of probe pins by opening an insertion hole to insert a card edge board in the upper surface of a case, opening small holes to insert the probe pins corresponding to contact pins in both, side surfaces of the case, and vertically displacing the opening positions of the small holes adjacent to each other in the height range of the contact pins. SOLUTION: A card edge connector 2 has a case 5 and contact pins 6 and is mounted to a printed circuit board 7. The case 5 is a casing having its upper surface opened, and the upper surface opening is used as an insertion hole of a card edge board 1. The contact pins 6 form multiple pairs and the pairs of the contact pins 6 are arranged opposite to and in parallel with one another along the lengthwise direction of the case 5 and pierce the bottom of the case 5 to be extracted downward from the printed circuit board 7. The small holes 4 to insert probe pins 3 are individually opened in both side walls of the case 5 corresponding to all the pairs of the contact pins 6 in the case 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cart edge connector for performing various observations, measurements or evaluations by inserting a card edge board.

[0002]

2. Description of the Related Art When performing waveform observation, AC timing measurement, or evaluation using an electronic device such as a personal computer equipped with a connector into which a card edge substrate is inserted, a card edge substrate is conventionally inserted. Solder a conductive terminal such as a jumper wire to the connector pin, attach the probe pin of each measuring device to the terminal, take out the output from the terminal to the measuring device, observe the waveform, observe the timing of each signal He was working on measurements and evaluations.

[0003]

However, such a method has the following problems. That is, an error occurs in the measured value due to a difference in electrical characteristics depending on the length of the jumper wire attached to the connector pin. For this reason, in the case of measuring a signal timing having a strict allowable value, the determination becomes very difficult. The reason is,
This is because it was not possible to directly probe the signal to be measured.

Further, since the connection between the jumper wires and the pins of the connector is performed by soldering, there is a risk that heat generated during soldering may melt the connector mold. In particular, this is because the pin pitch of the connector has become narrower, and furthermore, the device to be measured has been reduced in size, all of which are susceptible to heat. For this reason, soldering has come to require more advanced techniques.

[0005] Since it takes a great deal of time to manually connect the terminal and the probe one by one, a probe of an external device is preliminarily disclosed in Japanese Utility Model Application Laid-Open No. 6-64373. By connecting to the connector, it is possible to connect the external device to the backboard panel by one-touch operation only by plugging and unplugging the connector with the probe attached when observing the signal of the backboard panel The proposed signal monitoring connector has been proposed.

[0006] According to the connector described in the prior art, the troublesome trouble of soldering a conductive terminal such as a jumper wire to the pin of the connector is eliminated.

It is an object of the present invention to provide a card edge connector which improves the connector of the above-mentioned prior art, facilitates insertion of a probe, and can further cope with a connector having a narrow pin interval.

[0008]

In order to achieve the above object, a card edge connector according to the present invention is a card edge connector which has a case and a contact pin, is mounted on a printed circuit board, and the case has an upper surface. The case is an open case, the upper surface opening is an insertion hole for the card edge board, and small holes are opened on both side walls of the case corresponding to the positions of the contact pins, respectively, and the small holes are the probe pins of the measuring instrument. The probe pin is inserted into the small hole from the horizontal direction, the tip of the probe pin contacts the contact pin for electrical conduction, the contact pin holds the card edge substrate, and It is to make electrical contact with the pattern attached to the card edge board, make a pair, and make a pair of contact pins facing each other along the longitudinal direction of the case. Are columns, the opening position of the small holes adjacent to each other, leaving those are displaced up and down within a range of the height of the contact pins.

The small holes are alternately opened at predetermined upper and lower positions at different heights.

The small hole is opened on one surface and the other surface of the case, and the small hole opened on one surface and the small hole opened on the other surface for the same pair of contact pins have the same height. Is opened at the position of.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Card edge connector 2 according to the present invention
Has a case 5 and contact pins 6 and is mounted on a printed circuit board 7. The case 5 is a housing having an upper surface opened, and the upper surface opening is an insertion port 9 of the card edge substrate. The contact pins 6 form a pair, and the contact pin pairs are arranged in parallel along the longitudinal direction of the case and are drawn out below the printed circuit board 7 through the bottom of the case 5.

In FIG. 2, the contact pin 6 is held in a vertical position in the case 5 by imparting a spring property, and between the pair of the contact pins 6, 6, an insertion port 9 of the case 5 is provided. Is received. On the other hand, the card edge substrate 1 is provided with a pattern 8 to be brought into contact with the contact pin 6 to be electrically conducted.
Are attached to both sides.

Small holes 4 are opened in both side walls 5a and 5b of the case 5 at positions corresponding to the positions of the contact pins 6, respectively. The small hole 4 is a hole into which the probe pin 3 of the measuring device 10 is inserted. The probe pins 3 are inserted from the horizontal direction into the small holes 4 on each side wall, and the tips of the probe pins 3 inserted into the small holes 4 come into contact with the contact pins 6 so that the pattern of the card edge substrate 1 is formed. 8 are electrically connected to each other.

That is, a specific pattern 8 of the card edge substrate 1 is passed through the probe pin 3 inserted into the small hole 4 corresponding to the contact pin 6 for outputting a signal to be observed.
The signal waveform and the circuit operation obtained from are measured by the measuring instrument 10. The small holes 4 into which the probe pins 3 are inserted are respectively opened one by one side wall 5a and the other side surface 5b of the case 5 corresponding to all pairs of the contact pins 6 housed in the case 1. .

In the present invention, the opening positions of the adjacent small holes 4, 4,... Are shifted vertically. The contact pin 6 is supported by the bottom of the case 5 and has a constant rising height. The opening position of the small hole 4 can be freely selected as long as it is within the range of the rising height of the contact pin 6. However, as shown in FIG. 3, it is convenient to open the upper and lower stages H1 and H2 (H1> H2) alternately at different heights. .

In FIG. 2, a portion for contacting the probe pin 3 with the contact pin 6 is simultaneously bent with the shape of the contact A as a portion for sandwiching the card edge substrate 1 and making contact with the pattern 8. By setting the opening position of 4 to two predetermined upper and lower stages,
It is sufficient for the contact pins 6 to prepare two types of contact pins A having different height positions.

By arranging the small holes 4 opened on the side wall of the case 5 up and down within the height range of the corresponding contact pins 6, the cart edge substrate 1 having a narrow pitch pattern is formed. However, when extracting a signal through the probe pin 3 inserted into the small hole 4, adjacent contact pins do not interfere with each other.

As shown in FIG. 2, the small holes 4 are opened on one side 5a and the other side 5b of the case 5 with respect to the contact pins 6 forming a pair, and the small holes 4 are opened on one side 5a. 4 and the small hole 4 opened on the other side surface 5b are opened at the same height, so that the contact pins 6, 6
Error is unlikely to occur.

[0019]

As described above, according to the present invention, since small holes are opened in the side wall of the case corresponding to the positions of the contact pins of the cart edge connector, signals are directly sent to the probe pins from the small holes corresponding to the contact pins. Can be taken out.

Further, since the opening positions of the small holes adjacent to each other are vertically shifted within the range of the height of the contact pins, even if the pitch of the pattern of the card edge substrate, that is, the pitch of the arrangement of the contact pins is small, the small holes are small. When inserting contact pins into the inside, adjacent contact pins do not interfere with each other, and a certain interval is secured between the small holes to easily insert and remove the contact pins, and the signal waveform and circuit operation This has the effect of observing.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is a diagram showing an embodiment of an opening position of a small hole.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Card edge board 2 Card edge connector 3 Probe pin 4 Small hole 5 Case 6 Contact pin 7 Printed circuit board 8 Pattern 9 Slot 10 Measurement machine

Claims (3)

[Claims] 1. A card edge connector having a case and a contact pin, mounted on a printed circuit board, wherein the case is a housing having an open upper surface, and an upper surface opening is
It becomes an insertion slot for the card edge board, and small holes are opened on both side walls of the case corresponding to the positions of the contact pins.The small holes are holes for inserting the probe pins of the measuring machine, and the probe pins are horizontal. From the direction into the small hole, the tip of which is in contact with the contact pin for electrical conduction, the contact pin holds the card edge board, and
It is to make electrical contact with the pattern provided on the card edge substrate, making a pair, the pairs of contact pins are arranged in parallel along the longitudinal direction of the case, and the openings of small holes adjacent to each other The card edge connector, wherein the position is shifted up and down within the range of the height of the contact pin. 2. The card edge connector according to claim 1, wherein the small holes are alternately opened at predetermined upper and lower positions at different heights. 3. The small hole is opened on one surface and the other surface of the case, and the small hole opened on one surface with respect to the same pair of contact pins has the same height as the small hole opened on the other surface. 3. The card edge connector according to claim 1, wherein the card edge connector is opened at a position.