CN102495246B - Testing device for PCB (printed circuit board) with multiple stamp holes - Google Patents

Abstract

The invention provides a multi-stamp hole PCB board testing device, which includes a test frame upper substrate, a test frame lower substrate, a bracket connecting the test frame upper substrate and the test frame lower substrate, and pogo pins, and the pogo pins are arranged on two Between the substrates, the arrangement is in the form of a trapezoid with a large top and a small bottom. The beneficial effects of the multi-stamp hole PCB board testing device of the present invention are: the use of pogo pins is much cheaper than small thimbles; the contact surface is relatively large, and there is no need to cause poor contact due to a little deviation; easy maintenance, one end is fixed and the other end is movable , easy to replace, but also free to adjust the height.

Description

Multi stamp hole PCB board test device

technical field

The invention relates to a testing device, in particular to a PCB board testing device.

Background technique

With the development of science and technology, the functions of chips are becoming more and more powerful, and the peripheral circuits are also increasing. When these functions are integrated into a board as a module to communicate with the outside, they can be connected by sockets, pins, etc., and the space requirements For stricter machines, we can only reduce the pitch of the pins and the height of the socket to meet the requirements, but this connection has caused certain hidden dangers to the machine due to virtual soldering or poor shock resistance, so welding with stamp holes is used. This method can solve the above problems very well, and has relatively high reliability and good anti-seismic performance; however, due to the dense spacing between the stamp holes, it is relatively difficult to test the function of the single board. The thimble method, the thimble is thin, expensive, easy to break, difficult to maintain, not very practical, and not conducive to mass production testing.

Contents of the invention

In order to solve the test problem, the thimble is replaced by a pogo pin, and the contact mode between the pin and the PCB board is changed from the original parallel pin on the stamp hole to a vertical one. The test frame is composed of 2 substrates, and the pogo pin is positioned on 2 Between the boards, the trapezoidal top is large and the bottom is small. The upper end is fixed and the lower end has a movable groove, and the height between the boards can be adjusted by screws to ensure the pick-up and contact of the PCB board.

A kind of multi-stamp hole PCB board testing device, it comprises the upper substrate of test frame, the lower substrate of test frame, the support and pogo pin that connects the upper substrate of test frame and the lower substrate of test frame, described pogo pin is arranged between two substrates, The setting method is in the form of a trapezoid with a large top and a small bottom.

As a further improvement of the present invention, the bracket is a height-adjustable bracket.

As a further improvement of the present invention, the bracket is a screw.

As a further improvement of the present invention, a gap is provided above the substrate corresponding to the pogo pins on the test frame.

As a further improvement of the present invention, the upper end of the pogo pin is fixed on the upper base plate of the test frame, and the lower end of the pogo pin is arranged in the movable groove of the lower base plate of the test frame.

As a further improvement of the present invention, it also includes a circular hole for wiring, which is arranged on the lower substrate of the test frame. Routing round hole, convenient for the routing of connecting wires.

As a further improvement of the present invention, a test hole is provided on the lower substrate of the test rack. For the test holes, the distance between the original test points is widened, and the holes are arranged flat.

The beneficial effects of the multi-stamp hole PCB board testing device of the present invention are: the use of pogo pins is much cheaper than small thimbles; the contact surface is relatively large, and there is no need to cause poor contact due to a little deviation; easy maintenance, one end is fixed and the other end is movable , easy to replace, but also free to adjust the height.

Description of drawings

Fig. 1 is a three-dimensional view of the multi-stamp hole PCB board testing device of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the front view of Fig. 1;

Fig. 4 is the structural representation of the test board with stamp hole tested by the multi-stamp hole PCB board testing device of the present invention;

Figure 5 is a top view of Figure 4;

Fig. 6 is the front view of Fig. 4;

Fig. 7 is an enlarged view of part A in Fig. 4 .

The names of the parts in the figure are as follows: base plate 101 on the test frame, bracket 102, base plate 103 under the test frame, pogo pins 104, test plate 105 with stamp holes, movable groove 106, round hole 107 for wiring, and test hole 108.

Detailed ways

As shown in Figures 1 to 3, a kind of multi-stamp hole PCB board testing device, it comprises the upper substrate 101 of test frame, the lower substrate 103 of test frame, the support 102 that connects the upper substrate 101 of test frame and the lower substrate 103 of test frame and pogo pin 104 , the pogo pins 104 are arranged between two substrates in a trapezoidal shape with a large top and a small bottom. The bracket 102 is a height-adjustable bracket. For example, the bracket 102 is a screw. The lower substrate 103 of the test frame is provided with a wire routing hole 107 and a test hole 108 .

There is a notch above the base plate 101 corresponding to the pogo pins 104 on the test frame. This facilitates the pick-and-place of multi-stamp hole PCB board test. The upper end of the pogo pin 104 is fixed on the upper base plate 101 of the test frame, and the lower end of the pogo pin 104 is arranged in the movable groove of the lower base plate 103 of the test frame.

Figure 4 to Figure 6 show that the multi-stamp hole PCB board is placed on the test device. It can be seen from the figure that the contact surface is relatively large, and there is no need to cause poor contact due to a little deviation; maintenance is easy, one end is fixed and the other end is movable, and it is easy to replace , but also free to adjust the height.

Fig. 7 is an enlarged view of part A in Fig. 4, specifically showing the movable groove.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (8)

1. a kind of multi-stamp hole PCB board testing device is characterized in that: it comprises base plate (101) on test frame, base plate (103) under test frame, connects base plate (101) and base plate (103) under test frame bracket (102) and pogo pins (104), the pogo pins (104) are arranged between two substrates in a trapezoidal form with a large top and a small bottom, and the substrate (101) on the test frame corresponds to the pogo pins (104 ) with a notch above. 2. The device for testing PCB boards with multiple stamp holes according to claim 1, characterized in that: the bracket (102) is a height-adjustable bracket. 3. The testing device for PCB boards with multiple stamp holes according to claim 2, characterized in that: the bracket (102) is a screw. 4. The multi-stamp hole PCB board testing device according to any one of claims 1 to 3, characterized in that: the upper end of the pogo pin (104) is fixed on the upper substrate (101) of the test frame, and the lower end of the pogo pin (104) is arranged In the movable groove (106) of the base plate (103) under the test rack. 5. The multi-stamp hole PCB board testing device according to any one of claims 1 to 3, characterized in that: it also includes a routing hole (107), which is arranged on the lower substrate (103) of the test frame. 6. The multi-stamp hole PCB board testing device according to claim 4, characterized in that: it also includes a routing hole (107), which is arranged on the lower substrate (103) of the test frame. 7. The multi-stamp hole PCB board testing device according to any one of claims 1 to 3, characterized in that: it also includes a test hole (108), which is arranged on the lower substrate (103) of the test frame. 8. The multi-stamp hole PCB board testing device according to claim 4, characterized in that: it also includes a test hole (108), which is arranged on the lower substrate (103) of the test frame.