CN101592680A - Coupling arrangement - Google Patents

Abstract

The invention provides a connecting device suitable for testing an electronic device, and the electronic device has a plug-in first connector matched with the connecting device. The connection device includes a printed circuit board and a first port. The printed circuit board has a first surface and a second surface opposite to each other, and an end portion of the first surface has a third surface concave relative to the first surface. The first port has a plurality of terminals, and the terminals protrude from the third surface parallel to each other and are connected to signals of external wires. In the present invention, the printed circuit board is used to replace the original product terminal as a switch, so as to prolong the service life of the connecting device and reduce the cost.

Description

connecting device

technical field

The present invention relates to a connection device, in particular to a connection device using a printed circuit board as a transition.

Background technique

With the advancement of liquid crystal display device technology and its wide application in various products, the quality of liquid crystal display devices is also gradually improved. In order to ensure the stability of the manufacturing quality of the liquid crystal display device, some tests are carried out after the liquid crystal display device is manufactured to ensure that the manufactured liquid crystal display device can operate normally.

Generally speaking, the test method of the liquid crystal display device is to use the test connection device to connect with the connector of the liquid crystal display device, and the test signal is transmitted to the liquid crystal display device through the terminal of the test connection device, so as to test the liquid crystal display device. For example, since the cable of the product to be tested is a low-voltage differential signal (LVDS) cable, the traditional LVDS test connection device will also be made the same as the LVDS cable of the product, and the LVDS cable is used to transmit the signal, or directly to the product connector. Please refer to FIG. 1 , which is a schematic diagram of a connecting device in the prior art. The connection device 1 includes an insulating body 2 and a plurality of pins 3, wherein the plurality of pins 3 are arranged on the insulating body 2 and connected to an external signal, such as a test signal or other signal, and the external signal is transmitted through a wire 4, that is, the pin 3 is connected to wire 4. However, during the testing process, the connection device needs to be inserted and pulled out many times, and in the prior art, the adapter plate and the insulating body 2 used in the connection device 1 are plastic plates, which will cause wear and tear of the connection device 1, for example Corner damage, raised burrs, and broken wires will greatly shorten the service life of the connecting device 1 , thereby affecting test results, and will also cause damage to the connector at the product end, thereby increasing maintenance costs.

Contents of the invention

In view of this, the object of the present invention is to provide a connection device, which uses a printed circuit board to replace the original product terminal as a transfer, prolongs the service life of the connection device, and reduces costs.

To achieve the above purpose, the present invention provides a connecting device suitable for testing an electronic device, and the electronic device has a plug-in first connector mated with the connecting device. The connection device includes a printed circuit board and a first port. The printed circuit board has a first surface and a second surface opposite to each other, and an end portion of the first surface has a third surface concave relative to the first surface. The first port has a plurality of terminals protruding from the third surface parallel to each other and connected to signals of external wires.

As an optional technical solution, the connecting device further includes a housing protruding from the end of the second surface for accommodating and arranging the wires.

As an optional technical solution, the length of the terminal is less than or equal to the insertion depth of the connecting device into the first connector.

As an optional technical solution, the printed circuit board is a multilayer circuit board, and has an inner layer circuit, and the inner layer circuit connects the plurality of terminals and the wire.

As an optional technical solution, a joint is also included, and the joint connects the inner circuit and the wire.

As an optional technical solution, the connector includes a plurality of pins, and the pins are electrically connected to the wire.

As an optional technical solution, the pins are arranged parallel to the second surface of the printed circuit board.

As an optional technical solution, the pins are arranged perpendicular to the second surface of the printed circuit board.

As an optional technical solution, the electronic device is a liquid crystal display device.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

Description of drawings

Figure 1 is a schematic diagram of a connecting device in the prior art;

Figure 2 shows a top view of the connecting device according to the present invention;

Figure 3 shows a schematic cross-sectional view of a connecting device according to the present invention;

FIG. 4 is a schematic diagram of a partial structure of the connection device according to the present invention combined with the first connector;

Figure 5 shows a rear view of the connecting device according to the invention.

Detailed ways

Please refer to Figure 2, Figure 3 and Figure 4, Figure 2 shows a top view of the connection device according to the present invention, Figure 3 shows a schematic cross-sectional view of the connection device according to the present invention, and Figure 4 shows a connection according to the present invention A schematic diagram of the partial structure of the device combined with the first connector. The present invention provides a connection device 10 suitable for testing electronic devices (not shown). The electronic device has a plug-in first connector 20 for mating electrical connection with the connecting device 10 . In this embodiment, the electronic device is, for example, a liquid crystal display device. The connection device 10 includes a printed circuit board 11 and a first port 12 . Wherein the first port 12 is adapted to be connected with the first connector 20 to achieve electrical coupling. The printed circuit board 11 has a first surface 111 and a second surface 112 oppositely disposed, and an end of the first surface 111 has a third surface 113 concavely disposed relative to the first surface 111 . That is, the plane of the third surface 113 is lower than the plane of the first surface 111 . The first port 12 has a plurality of terminals 13 protruding from the third surface 113 parallel to each other and connected to signals of the external wires 14 for signal transmission. The external signal is, for example, a test signal of a liquid crystal display device.

The printed circuit board 11 is a multi-layer circuit board and has an inner circuit 15 electrically connected to the terminals 13 and the wires 14 .

These terminals 13 of the first port 12 are equivalent to golden fingers, which can be plugged and mated with the plug-in first connector 20 of the liquid crystal display device (product). When the connection device 10 tests the liquid crystal display device, these terminals 13 are inserted into the first connector 20, so that the connection device 10 is electrically connected to the first connector 20, and the signal of the wire 15 can pass through these terminals 13 and the first connection. The device 20 is transferred to the liquid crystal display device to test the liquid crystal display device. The length of the terminal 13 is less than or equal to the insertion depth of the connecting device 10 into the first connector 20 , so that the terminal 13 can be in contact with and electrically connected to the terminal in the first connector 20 .

Moreover, for this embodiment, when the terminals 13 of the first port 12 are plugged in more times and damaged, the front ends of these terminals 13 can be directly cut slightly to continue using the connecting device 10 for testing.

Please refer to FIG. 5 , which is a rear view of the connecting device according to the present invention. In addition, the connection device 10 further includes a connector 16 , which connects the inner circuit 15 and the wire 14 of the printed circuit board 11 . Moreover, the connector 16 includes a plurality of pins 17 , these pins 17 are electrically connected to the wires 14 , and the signals of the wires 14 are transmitted to the multiple terminals 13 of the first port 12 of the connection device 10 through these pins 17 and the inner layer circuit 15 . The pins 17 may be arranged parallel to the second surface 112 of the printed circuit board 11 , as shown in FIG. 5 . Of course, these pins 17 can also be arranged perpendicular to the second surface 112 of the printed circuit board 11 , that is, arranged in a direction perpendicular to these pins 17 as shown in FIG. 5 , and then the wires 14 are electrically connected to these pins 17 .

In addition, the connecting device 10 further includes a housing 18 protruding from the end of the second surface 112 for accommodating the wires 14 so that the wires 14 protrude from the end of the housing 18 . More specifically, the casing 18 will cover the upper part of the joint 16 to protect the joint 16 and ensure the bonding effect between the wire 14 and the inner circuit 15 . That is, after covering the upper casing, it can prevent the connecting joint 16 of the wire 14 and the inner layer circuit 15 from touching or pulling with the outside world, causing damage or poor bonding effect. It can be understood that the casing 18 and the first port 12 are separately disposed at two ends of the printed circuit board 11 .

In order to make the casing 18 and the printed circuit board 11 firmly bonded, and to facilitate disassembly and replacement of internal circuits, the casing 18 and the printed circuit board 11 can be combined by snapping or welding, for example. In more detail, the side edge of the housing 18 may have an engaging portion, such as a hook. The printed circuit board 11 may have another engaging portion at a position corresponding to the engaging portion, such as a slot, to cooperate with the hook, so that the housing 18 and the printed circuit board 11 are firmly combined together, and it is easy to disassembly. However, in other embodiments, it is not limited thereto, and the principle is that they can be closely combined.

To sum up, in the present invention, the printed circuit board is used as a switch to connect to the first connector of the liquid crystal display device, so as to test the liquid crystal display device smoothly. Through the plug-in connection between the printed circuit board and the first connector, a high-reliability connection mode is provided, the connection can be made quickly and conveniently, and the service life of the adapter can be extended. At the same time, when the adapter is damaged or worn for a long time, it will not affect the proper state of the joint, and only need to directly cut off the damaged ends of the first port of the printed circuit board to maintain the connection device. normal test.

Through the detailed description of the specific implementations above, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the scope of the claims of the present invention is not limited by the specific implementations disclosed above. On the contrary, the intention is to cover various modifications and equivalent arrangements within the scope of the claims of the present invention. Therefore, the scope of the claims of the present invention should be interpreted in the broadest way based on the above description, so as to cover all possible changes and arrangements having equivalents.

Claims (10)

1. A connection device suitable for testing an electronic device, the electronic device has a plug-in first connector to cooperate with the connection device, characterized in that the connection device includes a printed circuit board having opposed first and second surfaces, and an end portion of the first surface has a third surface concave relative to the first surface; and The first port has a plurality of terminals, and the terminals protrude from the third surface parallel to each other and are connected to signals of external wires. 2 . The connection device according to claim 1 , further comprising a housing, the housing protrudes from an end of the second surface for accommodating and organizing the wires. 3 . 3. The connecting device as claimed in claim 1, wherein the length of the terminal is less than or equal to the insertion depth of the connecting device into the first connector. 4 . The connection device according to claim 1 , wherein the printed circuit board is a multilayer circuit board and has an inner layer circuit, and the inner layer circuit connects the plurality of terminals and the wire. 5 . The connection device according to claim 4 , further comprising a joint, the joint connects the inner circuit and the wire. 6. The connecting device as claimed in claim 5, wherein the connector comprises a plurality of pins, and the pins are electrically connected to the wire. 7. The connecting device as claimed in claim 6, wherein the pins are arranged parallel to the second surface of the printed circuit board. 8. The connecting device as claimed in claim 6, wherein the pins are arranged perpendicular to the second surface of the printed circuit board. 9. The connecting device as claimed in claim 1, wherein the external signal is a test signal. 10. The claim 1, wherein the electronic device is a liquid crystal display device.

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