Conduction connection and elastic taking device of bent microphone FPC circuit board

Abstract

The utility model relates to a conduction connection and elastic taking device of a bent microphone FPC circuit board, which comprises a fixed base, a first PCB test adapter plate and a second PCB test adapter plate are arranged on the fixed base, the first PCB test adapter plate is provided with an A-end test terminal and an A-end pin header, the second PCB test adapter plate is provided with a B-end test terminal and a B-end pin header, and the A-end test terminal and the A-end pin header are connected with the B-end test terminal and the B-end pin header. The A-end pin header and the B-end pin header are electrically connected with the conduction testing instrument through the flat cable connecting assembly. The movable elastic plate is arranged above the first PCB test adapter plate and the second PCB adapter plate; the cylinder is arranged in the fixed base, and a telescopic rod of the cylinder is connected with the movable elastic plate through an ejector block. According to the utility model, the movable elastic plate pushes the connecting port of the bent microphone FPC circuit board to be quickly separated from the connecting port of the test fixture, and the butt joint of the two connecting ports is ensured not to incline when the two connecting ports are separated, so that the connecting ports are prevented from being damaged, the connecting ports are not deformed, the service life of the test fixture is prolonged, and the test efficiency is improved. The test efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a conduction connection and elastic extraction device for a bent microphone FPC circuit board. Background Art

[0002] At present, laptops and tablets are becoming more and more miniaturized and centralized. The microphone is connected to an FPC and needs to be bent in various ways to meet the customer's structural assembly requirements. After the FPC of the MIC is bent, it needs to be subjected to a conduction test. Only after ensuring that the product is a good product can it be shipped to the customer. The original design is to manually remove the microphone. When removing the microphone, the connection ports at the two docking positions need to be tilted at a certain angle before the conductive connection can be removed. This causes certain damage to the connection ports. In severe cases, it may cause deformation of the product connector, resulting in product defects. When testing the bent part of the microphone, the angle may also increase. The number of uses of the terminals (connectors) is limited, only 100 - 200 pcs. The original design is difficult to meet the requirements. Summary of the Utility Model

[0003] Therefore, the technical problem to be solved by the present utility model is to overcome the problem that when removing the bent microphone FPC circuit board after the conduction test in the prior art, the connection ports at the two docking positions on the FPC circuit board are tilted, which in turn causes damage to the connection ports. The present utility model provides a conduction connection and elastic extraction device for a bent microphone FPC circuit board, which can enable the moving elastic plate to quickly separate the connection port of the bent microphone FPC circuit board from the connection port of the test fixture, and ensure that when the two connection ports are separated, the docking position does not tilt, avoiding damage to the connection ports and preventing deformation of the connection ports, increasing the service life of the test fixture and having high test efficiency.

[0004] To solve the above technical problem, the present utility model provides a test elastic extraction device for a bent microphone FPC circuit board, which is arranged on a circuit board test fixture and includes:

[0005] A fixed base, on which a first PCB test adapter board and a second PCB test adapter board are provided. An A - end test terminal and an A - end row pin are provided on the first PCB test adapter board, and a B - end test terminal and a B - end row pin are provided on the second PCB test adapter board. The A - end row pin and the B - end row pin are respectively connected to a conduction test instrument through a wire connection assembly;

[0006] A moving elastic plate, which is arranged above the first PCB test adapter board and the second PCB test adapter board and is used to support the bent FPC microphone circuit board;

[0007] A cylinder, which is arranged inside the fixed base, and the telescopic rod of the cylinder is connected to the moving elastic plate through a top block.

[0008] In an embodiment of the present utility model, the movable elastic plate includes a first support portion, a second support portion, and a limiting portion. The second support portion is disposed between the first support portion and the limiting portion, and there is a height difference between the first support portion and the second support portion.

[0009] In an embodiment of the present utility model, the first support portion is provided with a first terminal avoidance hole, and the second support portion is provided with a second terminal avoidance hole. Both the first terminal avoidance hole and the second terminal avoidance hole are used to avoid the connection terminals on the bent microphone FPC circuit board.

[0010] In an embodiment of the present utility model, the first PCB test adapter board is in a shape of a Chinese character 'gong', and the second PCB test adapter board is in an L shape.

[0011] In an embodiment of the present utility model, the flexible cable connection assembly includes a flexible cable connector, a flexible cable, and a docking connector. The flexible cable connector is inserted into the A-end pin header, the docking connector is connected to the docking socket on the conduction test instrument, and the flexible cable is connected between the flexible cable connector and the docking connector.

[0012] In an embodiment of the present utility model, the bent microphone FPC circuit board includes an FPC substrate, a microphone, a reinforcing plate, an A terminal, and a B terminal. The FPC substrate includes a first bent portion, a second bent portion, and a third bent portion. The microphone is disposed on the first bent portion, the A terminal is disposed on the second bent portion, and the B terminal is disposed on the third bent portion.

[0013] In an embodiment of the present utility model, arc transition segments are provided between the second bent portion and the first bent portion and the third bent portion respectively.

[0014] In an embodiment of the present utility model, a first reinforcing plate is provided on the opposite side of the microphone on the first bent portion.

[0015] In an embodiment of the present utility model, a second reinforcing plate is provided on the opposite side of the A terminal on the second bent portion, and a foam is provided on the second reinforcing plate.

[0016] In an embodiment of the present utility model, a third reinforcing plate is provided on the opposite side of the B terminal on the third bent portion.

[0017] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0018] A conduction connection and elastic extraction device for a bent microphone FPC circuit board according to the present utility model. The to-be-tested bent microphone FPC circuit board is connected to the first PCB test adapter board, the A-end test terminal, the second PCB test adapter board, and the B-end test terminal. The first PCB test adapter board and the second PCB test adapter board are connected to a conduction test instrument through a cable assembly. It is convenient to use and increases the overall flexibility. When replacing the fixture, no complex welding operation is required, simplifying the operation and reducing the difficulty of replacing the fixture. After the test of the bent microphone FPC circuit board is completed, the top block is lifted by the cylinder control, and the top block pushes the movable elastic plate to bounce up, enabling the movable elastic plate to quickly separate the connection port of the bent microphone FPC circuit board from the connection port of the test fixture, and ensuring that when the two connection ports are separated, the docking part does not tilt, avoiding damage to the connection ports and preventing deformation of the connection ports, increasing the service life of the test fixture and having high test efficiency. Moreover, the movable elastic plate can support the bent microphone FPC circuit board. Description of the Drawings

[0019] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model and in conjunction with the drawings, where

[0020] Figure 1 is a test conduction connection and elastic extraction device for a bent microphone FPC circuit board in a preferred embodiment of the present utility model;

[0021] Figure 2 is a structural schematic diagram of the movable elastic plate of the present utility model;

[0022] Figure 3 is a structural schematic diagram of the bent FPC microphone circuit board in the present utility model;

[0023] Figure 4 is a structural schematic diagram of the movable elastic plate and the bent FPC microphone circuit board of the present utility model;

[0024] Figure 5 is a structural schematic diagram of the first PCB test adapter board of the present utility model;

[0025] Figure 6 is a structural schematic diagram of the second PCB test adapter board of the present utility model;

[0026] Description of the reference numerals in the drawings: 1. Fixed base; 11. First PCB test adapter board; 12. Second PCB test adapter board; 2. Flexible cable connection assembly; 21. Flexible cable connector; 22. Flexible cable; 23. Docking connector; 3. Movable spring plate; 31. First support portion; 311. First terminal avoidance hole; 32. Second support portion; 321. Second terminal avoidance hole; 33. Limiting portion; 4. Cylinder; 5. Top block; 100. Bent microphone FPC circuit board; 101. FPC substrate; 102. Microphone; 104. A terminal; 105. B terminal; 106. First reinforcing plate; 107. Second reinforcing plate; 108. Foam; 109. Third reinforcing plate; 1011. First bending portion; 1012. Second bending portion; 1013. Third bending portion; 1014. Arc transition section; 200. Conductivity test instrument; 201. Docking socket. Detailed implementation mode

[0027] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the specific embodiments cited do not limit the present utility model.

[0028] Refer to Figure 1 As shown, a conduction connection and ejection device for a bent microphone FPC circuit board of the present utility model includes: a fixed base 1, a first PCB test adapter board 11 and a second PCB test adapter board 12 are provided on the fixed base 1, and support blocks are provided between the first PCB test adapter board 11 and the second PCB test adapter board 12 and the fixed base 1. Among them, an A-terminal test terminal 111 and an A-terminal row pin 112 are provided on the first PCB test adapter board 11, a B-terminal test terminal 121 and a B-terminal row pin 122 are provided on the second PCB test adapter board 12, and the A-terminal row pin 112 and the B-terminal row pin 122 are respectively connected to a conductivity test instrument 200 through a flexible cable connection assembly 2; a movable spring plate 3 is arranged above the first PCB test adapter board 11 and the second PCB adapter board 12 for supporting the bent FPC microphone circuit board 100; a cylinder 4 is arranged inside the fixed base 1, and the telescopic rod of the cylinder 4 is connected to the movable spring plate 3 through a top block 5.

[0029] Such as Figure 2As shown, the movable elastic plate 3 includes a first support portion 31, a second support portion 32, and a limiting portion 33. The second support portion 32 is disposed between the first support portion 31 and the limiting portion 33, and there is a height difference between the first support portion 31 and the second support portion 32. A height difference and a corresponding distance are formed between the first support portion 31 and the second support portion 32, so that the movable elastic plate 3 can exactly match the bent microphone FPC circuit board 100. A limiting step is provided on the limiting portion 33 for positioning the end of the bent microphone FPC circuit board 100, making the assembly more convenient.

[0030] Further, the first support portion 31 is provided with a first terminal avoidance hole 311, and the second support portion 32 is provided with a second terminal avoidance hole 321. Both the first terminal avoidance hole 311 and the second terminal avoidance hole 321 are used to avoid the connection terminals on the bent microphone FPC circuit board 100.

[0031] In this embodiment, the flexible cable connection assembly 2 includes a flexible cable connector 21, a flexible cable 22, and a docking connector 23; the flexible cable connector 21 is inserted into the A - end pin 112, the docking connector 23 is connected to the docking socket 201 on the conduction test instrument 200, and the flexible cable 22 is connected between the flexible cable connector 21 and the docking connector 23.

[0032] As Figure 5 and 6 shown, the first PCB test adapter board 11 is in an I - shape, and the second PCB test adapter board 12 is in an L - shape. The first PCB test adapter board 11 is provided with an A - end test terminal 111 and A - end pins 112. Among them, the A - end pins 112 include two groups, which are respectively located between the A - end test terminals 111. The second PCB test adapter board 12 is provided with a group of B - end pins 122 and a B - end test terminal 121.

[0033] As Figure 3 shown, the bent microphone FPC circuit board 100 includes an FPC substrate 101, a microphone 102, an A terminal 104, and a B terminal 105. The FPC substrate 101 includes a first bending portion 1011, a second bending portion 1012, and a third bending portion 1013. The microphone 102 is disposed on the first bending portion 1011, the A terminal 104 is disposed on the second bending portion 1012, and the B terminal 105 is disposed on the third bending portion 1013.

[0034] In this embodiment, arc transition segments 1014 are provided between the second bending portion 1012 and the first bending portion 1011 and the third bending portion 1013 respectively.

[0035] Further, a first reinforcing plate 106 is provided on the first bent portion 1011 opposite to the microphone 102. A second reinforcing plate 107 is provided on the second bent portion 1012 opposite to the A terminal 104, and a foam 108 is provided on the second reinforcing plate 107. A third reinforcing plate 109 is provided on the third bent portion 1013 opposite to the B terminal 105.

[0036] As Figure 4 shown, when the bent microphone FPC circuit board 100 is tested, it is installed above the moving spring plate 3. The first terminal avoidance hole 311 on the first support portion 31 in this embodiment is used to avoid the A terminal 104; the second support portion 32 is provided with a second terminal avoidance hole 321 for avoiding the B terminal 105. The size of the first terminal avoidance hole 311 is smaller than the size of the first reinforcing plate 106, and the size of the second terminal avoidance hole 321 is smaller than the size of the second reinforcing plate 107.

[0037] In this embodiment, the fixed base 1 is provided with a button for controlling the cylinder 4. After the test is completed, when the button is pressed manually, the cylinder 4 is activated to lift the top block 5, so that the moving spring plate 3 rises, separating the A terminal 104 on the bent microphone FPC circuit board 100 from the A-end test terminal 111 of the first PCB test adapter plate 11, and separating the B-end test terminal 121 on the second PCB test adapter plate 12 from the B terminal 105, causing the bent microphone FPC circuit board 100 to pop out.

[0038] The conduction connection and ejection device of the bent microphone FPC circuit board described in this utility model is installed on the circuit board test fixture, which is used to realize the connection between the bent microphone FPC circuit board 100 and the conduction test instrument 200, and after the test is completed, take out the bent microphone FPC circuit board 100 from the circuit board test fixture, avoiding damage to the connection terminals on the bent microphone FPC circuit board 100 and the test fixture, improving the test efficiency, and extending the service life of the test fixture.

[0039] Specifically, when in use, the to-be-tested bent microphone FPC circuit board 100 is plugged into the A-end test terminal 111 of the first PCB test adapter plate 11 and the B-end test terminal 121 of the second PCB test adapter plate 12. The first PCB test adapter plate 11 and the second PCB test adapter plate 12 are then plugged into the conduction test instrument 200 through the cable assembly 2, which is convenient to use, increases the overall flexibility, is convenient to operate when replacing the fixture, does not require welding, and reduces the replacement difficulty.

[0040] After the bending microphone FPC circuit board 100 is tested, the cylinder 4 controls the top block 5 to lift up, and the top block 5 pushes the movable elastic plate 3 to lift up, enabling the movable elastic plate 3 to push the A terminal 104 and the B terminal 105 of the bending microphone FPC circuit board 100 to be quickly separated from the A-end test terminal 111 and the B-end test terminal 121 on the first PCB test adapter board 11 and the second PCB test adapter board 12 respectively, and ensuring that when the terminals are separated, the docking parts of the terminals do not tilt. This not only avoids damage to the terminals on the bending microphone FPC circuit board 100, but also does not cause deformation of the terminals on the first PCB test adapter board 11 and the second PCB test adapter board 12, increasing the service life of the test fixture, with high test efficiency. Moreover, the movable elastic plate 3 can support the bending microphone FPC circuit board 100.

[0041] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. A conduction connection and elastic extraction device for a bent microphone FPC circuit board, which is arranged on a circuit board test fixture, is characterized in that: Comprising: A fixed base, on which a first PCB test adapter board and a second PCB test adapter board are provided. An A-end test terminal and A-end pins are provided on the first PCB test adapter board, and a B-end test terminal and B-end pins are provided on the second PCB test adapter board. The A-end pins and the B-end pins are respectively electrically connected to a conduction test instrument through a cable connection assembly; A movable spring plate, arranged above the first PCB test adapter board and the second PCB test adapter board, for supporting the bent FPC microphone circuit board; A cylinder, arranged inside the fixed base, and the telescopic rod of the cylinder is connected to the movable spring plate through a top block.

2. The conduction connection and elastic extraction device for a bent microphone FPC circuit board according to claim 1, characterized in that: The movable spring plate includes a first support portion, a second support portion and a limiting portion. The second support portion is arranged between the first support portion and the limiting portion, and there is a height difference between the first support portion and the second support portion.

3. The conduction connection and elastic extraction device of a bent microphone FPC circuit board according to claim 2, characterized in that: The first support portion is provided with a first terminal avoidance hole, and the second support portion is provided with a second terminal avoidance hole. Both the first terminal avoidance hole and the second terminal avoidance hole are used to avoid the connection terminals on the bent microphone FPC circuit board.

4. The conduction connection and elastic extraction device for a bent microphone FPC circuit board according to claim 1, characterized in that: The first PCB test adapter board is in an I shape, and the second PCB test adapter board is in an L shape.

5. The conducting connection and elastic extraction device of a bent microphone FPC circuit board according to claim 4, characterized in that: The cable connection assembly includes a cable connector, a cable and a docking connector; the cable connector is inserted into the A-end pins, the docking connector is connected to the docking socket on the conduction test instrument, and the cable is connected between the cable connector and the docking connector.

6. The conduction connection and elastic extraction device of a bent microphone FPC circuit board according to claim 1, characterized in that: The bent microphone FPC circuit board includes an FPC substrate, a microphone, a reinforcing plate, an A terminal and a B terminal. The FPC substrate includes a first bending portion, a second bending portion and a third bending portion. The microphone is arranged on the first bending portion, the A terminal is arranged on the second bending portion, and the B terminal is arranged on the third bending portion.

7. The conduction connection and elastic extraction device for a bent microphone FPC circuit board according to claim 6, characterized in that: Arc transition sections are provided between the second bending portion and the first bending portion and the third bending portion respectively.

8. The conduction connection and elastic extraction device for a bent microphone FPC circuit board according to claim 7, characterized in that:

9. The conduction connection and elastic extraction device of a bent microphone FPC circuit board according to claim 8, characterized in that: A first reinforcing plate is arranged on the opposite side of the microphone on the first bending portion.

10. The conduction connection and elastic extraction device for a bent microphone FPC circuit board according to claim 9, characterized in that: A second reinforcing plate is arranged on the opposite side of the A terminal on the second bending portion, and a foam is provided on the second reinforcing plate. A third reinforcing plate is arranged on the opposite side of the B terminal on the third bending portion.

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