Test fixture

Abstract

The utility model belongs to the technical field of jigs, and particularly relates to a test jig, which comprises a substrate and a pressing plate, one end of the pressing plate is movably hinged with the substrate, a circuit board is mounted on the pressing plate, a first groove, a first placement groove and a second placement groove are arranged on the surface of the substrate, the first groove is arranged between the first placement groove and the second placement groove, and the second groove is arranged between the first placement groove and the second placement groove. The end portion of the first groove is concaved outwards to form a clamping groove, a limiting plate matched with the pressing plate is arranged on the surface of the base plate, the limiting plate and the clamping groove are arranged adjacently, and the side portion of the limiting plate is concaved inwards to form a limiting groove. According to the utility model, by arranging the pressing plate and the limiting plate, the interface of the circuit board can be pressed on the interface of the display screen to be conducted, and the limiting groove is used for clamping the interface of the display screen, so that the testing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and in particular relates to a testing fixture. Background Art

[0002] With the rapid development of display panel products (such as LCD panels, OLED panels, and MicroLED panels), consumers are pursuing more and more display effects. After manufacturing and assembly in the factory, in order to ensure quality, the display panel needs to be tested by power-on testing.

[0003] Existing display test fixtures have no fixed structure and require manual pressure on the connected parts. This testing method can easily lead to loose connections, resulting in erroneous test results. In addition, manual pressure and alignment are required, which reduces test efficiency.

[0004] Therefore, it is urgent to propose a new technical solution to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a test fixture to address the deficiencies of the existing technology, which can press the interface of the circuit board onto the interface of the display screen to make it conductive, and clamp the interface of the display screen through the limit groove, thereby improving the efficiency of the test.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A test fixture includes a base plate and a pressure plate, one end of the pressure plate is movably hinged to the base plate, a circuit board is mounted on the pressure plate, a surface of the base plate is provided with a first groove, a first placement groove, and a second placement groove, the first groove is arranged between the first placement groove and the second placement groove, the end of the first groove is recessed outward to form a locking groove, the surface of the base plate is provided with a limiting plate that cooperates with the pressure plate, the limiting plate and the locking groove are arranged adjacent to each other, and the side of the limiting plate is recessed inward to form a limiting groove.

[0008] Preferably, the side of the first groove is recessed outward to form a second groove, the recessed depth of the second groove is greater than the recessed depth of the first groove, and the sides of the second groove and the first groove partially overlap.

[0009] Preferably, a plurality of through holes are provided on the side of the first groove, and a side of the through holes close to the first groove is concave to form a recessed portion.

[0010] Preferably, a first through-hole is provided at the end of the first placement slot, and the first through-hole partially passes through the first placement slot.

[0011] Preferably, a second through-hole is provided at the end of the second placement slot, and the second through-hole partially passes through the second placement slot.

[0012] Preferably, a control module, a display module and a key module are mounted on the substrate, and the control module is electrically connected to the display module and the key module respectively.

[0013] Preferably, the surface of the substrate has a wire hole, and the wires of the circuit board pass through the wire hole, and the limiting plate and the wire hole are arranged adjacent to each other.

[0014] Preferably, a connecting rod is provided on the side of the pressure plate, and a connecting shaft, a first fixed block and a second fixed block are provided on the surface of the base plate. The connecting shaft passes through one end of the connecting rod to install the connecting rod between the first fixed block and the second fixed block.

[0015] Preferably, a limiting block is provided on the side of the limiting plate.

[0016] Preferably, a handle is provided on the side of the connecting rod.

[0017] Preferably, the control module is a single chip microcomputer chip or an ARM chip.

[0018] The beneficial effects of the present invention are as follows: the present invention comprises a substrate and a pressing plate, one end of the pressing plate is movably hinged to the substrate, a circuit board is mounted on the pressing plate, the pressing plate is used to adjust the position of the circuit board, the circuit board is pressed onto the substrate during testing so that the interface on the circuit board and the interface on the display screen can be conducted, the surface of the substrate is provided with a first groove, a first placement groove and a second placement groove, the first groove is used to place the display screen to be tested, the first placement groove and the second placement groove are both used to place the sample display screen, the tester judges whether the quality of the display screen under test meets the standard according to the state of the sample display screen, the first groove is provided in the first placement groove and the second placement groove The arrangement between the slots makes it easier for customers to judge whether the quality of the display screen meets the standards. The end of the first groove is recessed outward to form a positioning slot. The positioning slot is used to place the FPC (flexible circuit board) of the display screen to be tested, thereby facilitating the extraction of the interface of the display screen to be tested. The surface of the substrate is provided with a limiting plate that cooperates with the pressure plate. The limiting plate and the positioning slot are adjacently arranged. The side of the limiting plate is concave inward to form a limiting slot. The interface of the display screen to be tested is stuck in the limiting slot, making it less likely to shake. When the pressure plate moves the circuit board to the limiting plate, the interface of the circuit board and the interface of the display screen to be tested can be directly connected, reducing the time for the tester to adjust the position of the interface. By setting the pressure plate and the limiting plate, the utility model can press the interface of the circuit board onto the interface of the display screen to make it conductive. The limiting slot is used to clamp the interface of the display screen, thereby improving the efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is one of the overall structural diagrams of the present utility model.

[0020] Figure 2 This is the second schematic diagram of the overall structure of the present utility model.

[0021] Figure 3 This is the third schematic diagram of the overall structure of the present utility model.

[0022] Among them: 1. Base plate; 11. First groove; 111. Through hole; 112. Recessed portion; 12. First placement groove; 121. First through hole; 13. Second placement groove; 131. Second through hole; 14. Positioning groove; 15. Control module; 16. Display module; 17. Key module; 18. First fixing block; 19. Second fixing block; 2. Pressing plate; 21. Connecting rod; 22. Handle; 3. Circuit board; 4. Limiting plate; 41. Limiting groove; 5. Second groove; 6. Wire hole; 7. Limiting block. DETAILED DESCRIPTION

[0023] If certain words are used in the specification and claims to refer to specific components, those skilled in the art should understand that manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0024] The following is combined with Figures 1 to 3 The present invention is further described in detail with reference to the following specific embodiments, but is not intended to limit the present invention.

[0025] Example 1

[0026] A test fixture, such as Figures 1-2As shown, it includes a substrate 1 and a pressing plate 2, one end of the pressing plate 2 is movably hinged to the substrate 1, a circuit board 3 is installed on the pressing plate 2, the pressing plate 2 is used to adjust the position of the circuit board 3, and the circuit board 3 is pressed onto the substrate 1 during testing so that the interface on the circuit board 3 and the interface of the display screen can be connected, and the surface of the substrate 1 is provided with a first groove 11, a first placement groove 12 and a second placement groove 13, the first groove 11, the first placement groove 12 and the second placement groove 13 are all square grooves, specifically quadrilateral grooves, the first groove 11 is used to place the display screen to be tested, and the first placement groove 12 and the second placement groove 13 are both used to place the sample display The test personnel judge whether the quality of the display screen under test meets the standards by the state of the sample display screen. The first groove 11 is arranged between the first placement groove 12 and the second placement groove 13. This arrangement is convenient for customers to judge whether the quality of the display screen meets the standards. The end of the first groove 11 is recessed outward to form a positioning groove 14. The positioning groove 14 is used to place the FPC (flexible circuit board) of the display screen to be tested, so as to facilitate the interface of the display screen to be tested to be led out. The surface of the substrate 1 is provided with a limiting plate 4 that cooperates with the pressure plate 2. The limiting plate 4 and the positioning groove 14 are adjacently arranged. The side of the limiting plate 4 is recessed inward to form a limiting groove 41. Figure 3 As shown, the interface of the circuit board 3 and the limit slot 41 are correspondingly arranged. The interface of the display screen to be tested is stuck in the limit slot 41, making it difficult to shake. When the pressure plate 2 moves the circuit board 3 onto the limit plate 4, the interface of the circuit board 3 and the interface of the display screen to be tested can be directly connected, reducing the time required for the tester to adjust the interface position. By setting the pressure plate 2 and the limit plate 4, the interface of the circuit board 3 can be pressed against the interface of the display screen to achieve connection. The limit slot 41 is used to clamp the interface of the display screen, improving the efficiency of the test.

[0027] In this embodiment, the side of the first groove 11 is recessed outward to form the second groove 5. The depth of the second groove 5 is greater than that of the first groove 11. The side of the second groove 5 partially overlaps with the side of the first groove 11. The depth of the overlapping portion of the first groove 11 and the second groove 5 is the depth of the second groove 5. By providing the second groove 5, the tester can directly remove or insert the test display screen from the second groove 5, making it easier for the tester to test the display screen.

[0028] In this embodiment, a plurality of through holes 111 are provided on the side of the first groove 11. The side of the through holes 111 adjacent to the first groove 11 is concave to form a recessed portion 112. The provision of the through holes 111 and the recessed portion 112 prevents the corners of the display screen from being hit, which could affect the quality of the display screen. At the same time, some fine impurities can be cleaned out of the through holes 111, thereby improving cleaning efficiency.

[0029] Example 2

[0030] This embodiment differs from Example 1 in that a first through-hole 121 is provided at the end of first placement slot 12. First through-hole 121 partially passes through first placement slot 12, and several first holes are provided on the sides of first placement slot 12 to prevent the sample display from being hit. The FPC of the sample display can pass through first through-hole 121 to avoid interference with the test. Furthermore, the tester can insert their hand or a gripping device into first through-hole 121 to remove or insert the sample display from first placement slot 12.

[0031] In this embodiment, a second perforation 131 is provided at the end of the second placement slot 13. Second perforation 131 partially passes through the second placement slot 13. Several second holes are provided on the sides of the second placement slot 13 to prevent the sample display from being hit. The FPC of the sample display can pass through the second perforation 131 to avoid interference with the test. Furthermore, the tester can insert their hand or a gripping device into the second perforation 131 to remove or insert the sample display from the second placement slot 13. Providing two placement slots for placing the sample display improves test accuracy.

[0032] In this embodiment, a control module 15, a display module 16, and a key module 17 are mounted on the substrate 1. The control module 15 is electrically connected to the display module 16 and the key module 17, respectively. The control module 15 and the display module 16 are positioned adjacent to each other at the bottom of the first placement slot 12, and the key module 17 is positioned below the display module 16. The key module 17 is provided with buttons such as on / off, interrupt, single-step, plus / minus, etc. The user can record the number of screens tested, which is then displayed on the display module 16. The display module 16 can be an LED display or an LCD display.

[0033] In this embodiment, the surface of the substrate 1 has a wire hole 6, and the wires of the circuit board 3 pass through the wire hole 6 to prevent the wires from interfering with the tester testing the display screen. The limit plate 4 and the wire hole 6 are arranged adjacent to each other.

[0034] In this embodiment, a connecting rod 21 is provided on the side of the pressure plate 2, and a connecting shaft, a first fixing block 18, and a second fixing block 19 are provided on the surface of the base plate 1. A connecting shaft (not shown) passes through one end of the connecting rod 21 to install the connecting rod 21 between the first fixing block 18 and the second fixing block 19. One end of the connecting shaft passes through the first fixing block 18, the connecting rod 21, and the second fixing block 19 in sequence, allowing the connecting rod 21 to rotate. This arrangement prevents the connecting rod 21 from shaking and improves the stability of the connecting rod 21 during movement.

[0035] In this embodiment, a limit block 7 is provided on the side of the limit plate 4. The limit block 7 is greater than the height of the limit plate 4 and is provided between the limit plate 4 and the wire hole 6. By providing the limit block 7, the distance between the circuit board 3 and the limit plate 4 can be prevented from being too close.

[0036] In this embodiment, a handle 22 is provided on the side of the connecting rod 21. The handle 22 is provided to facilitate the tester to move the connecting rod 21.

[0037] In this embodiment, the control module 15 is a single chip microcomputer chip or an ARM chip.

[0038] The other structures of this embodiment are the same as those of embodiment 1 and will not be described again here.

[0039] Obviously, the utility model includes a base plate and a pressure plate, one end of the pressure plate is movably hinged to the base plate, a circuit board is mounted on the pressure plate, the pressure plate is used to adjust the position of the circuit board, and the circuit board is pressed onto the base plate during testing so that the interface on the circuit board and the interface on the display screen can be connected. The surface of the base plate is provided with a first groove, a first placement groove, and a second placement groove. The first groove is used to place the display screen to be tested, and the first placement groove and the second placement groove are both used to place the sample display screen. The tester judges whether the quality of the display screen under test meets the standard based on the state of the sample display screen. The first groove is provided between the first placement groove and the second placement groove. This arrangement makes it easy for customers to judge whether the quality of the display screen meets the standards. The end of the first groove is recessed outward to form a positioning groove. The positioning groove is used to place the FPC (flexible circuit board) of the display screen to be tested, thereby facilitating the extraction of the interface of the display screen to be tested. The surface of the substrate is provided with a limiting plate that cooperates with the pressure plate. The limiting plate and the positioning groove are arranged adjacent to each other. The side of the limiting plate is concave inward to form a limiting groove. The interface of the display screen to be tested is stuck in the limiting groove, making it less likely to shake. When the pressure plate moves the circuit board to the limiting plate, the interface of the circuit board and the interface of the display screen to be tested can be directly connected, reducing the time for the tester to adjust the position of the interface. By providing a pressure plate and a limiting plate, the utility model can press the interface of the circuit board onto the interface of the display screen to make it conductive. The limiting groove is used to clamp the interface of the display screen, thereby improving the efficiency of the test.

[0040] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present utility model fall within the scope of protection of the present utility model. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present utility model.

Claims

1. A test fixture, characterized in that: The invention comprises a base plate (1) and a pressure plate (2), one end of the pressure plate (2) is movably hinged to the base plate (1), a circuit board (3) is installed on the pressure plate (2), a surface of the base plate (1) is provided with a first groove (11), a first placement groove (12) and a second placement groove (13), the first groove (11) is arranged between the first placement groove (12) and the second placement groove (13), the end of the first groove (11) is recessed outward to form a positioning groove (14), the surface of the base plate (1) is provided with a limiting plate (4) cooperating with the pressure plate (2), the limiting plate (4) and the positioning groove (14) are arranged adjacent to each other, and the side of the limiting plate (4) is recessed inward to form a limiting groove (41).

2. The test fixture according to claim 1, wherein: The side of the first groove (11) is recessed outward to form a second groove (5), the recessed depth of the second groove (5) is greater than the recessed depth of the first groove (11), and the sides of the second groove (5) and the first groove (11) partially overlap.

3. The test fixture according to claim 1, wherein: A plurality of through holes (111) are provided on the side of the first groove (11), and one side of the through holes (111) close to the first groove (11) is concave to form a recessed portion (112).

4. The test fixture according to claim 1, wherein: A first through-hole (121) is provided at the end of the first placement slot (12), and the first through-hole (121) partially passes through the first placement slot (12).

5. The test fixture according to claim 1, wherein: A second through hole (131) is provided at the end of the second placement groove (13), and the second through hole (131) partially passes through the second placement groove (13).

6. The test fixture according to claim 1, wherein: A control module (15), a display module (16) and a key module (17) are mounted on the substrate (1); the control module (15) is electrically connected to the display module (16) and the key module (17), respectively.

7. The test fixture according to claim 1, wherein: The surface of the substrate (1) has a wire hole (6), and the wires of the circuit board (3) pass through the wire hole (6). The limiting plate (4) and the wire hole (6) are arranged adjacent to each other.

8. The test fixture according to claim 1, wherein: A connecting rod (21) is provided on the side of the pressure plate (2), and a connecting shaft, a first fixed block (18) and a second fixed block (19) are provided on the surface of the base plate (1). The connecting shaft passes through one end of the connecting rod (21) to install the connecting rod (21) between the first fixed block (18) and the second fixed block (19).

9. The test fixture according to claim 1, wherein: A limiting block (7) is provided on the side of the limiting plate (4).

10. The test fixture according to claim 8, wherein: A handle (22) is provided on the side of the connecting rod (21).

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