Contact detection jig for flexible circuit board

Abstract

The utility model is applicable to the technical field of flexible circuit board detection, and provides a contact detection jig for a flexible circuit board, which comprises a jig base, a carrier plate is arranged above the jig base, a taking-out structure is movably arranged on the carrier plate, and the taking-out structure consists of a connecting pull block, a connecting plate, a rectangular frame, a connecting square rod, a reset spring and a spring baffle plate, and the connecting plate is fixedly mounted at the rear end of the connecting pull block. By arranging the taking-out structure on the carrier plate, when the flexible circuit board in the circuit board placing groove is taken out, a worker can lift the connecting plate and the rectangular frame upwards through the connecting pull block, so that the flexible circuit board in the circuit board placing groove is pushed out through the connecting plate and the rectangular frame, and after the flexible circuit board is taken down, the connecting pull block is loosened, and then the flexible circuit board is taken out. And at the moment, under the elastic acting force of the reset spring, the rectangular frame and the connecting plate can automatically reset downwards, so that the flexible circuit board can be conveniently taken out, and meanwhile, the operation steps of a worker can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexible circuit board detection, and in particular relates to a contact detection tool for flexible circuit boards. Background Art

[0002] The flexible circuit board contact test jig is a device used to test whether each contact point on the FPC is working properly. During the manufacturing and use process, the FPC may cause poor contact or failure due to various reasons (such as manufacturing defects, environmental factors, wear and tear, etc.), so the contact test jig is an important tool to ensure the quality and reliability of the FPC. After the flexible circuit board is tested with the flexible circuit board contact test jig, it is difficult for the staff to quickly remove it due to its thin thickness.

[0003] In the existing patent application with application number CN202123141115.7, a high-precision multi-contact flexible circuit board test fixture is proposed. Although it is provided with a through hole, a lifting plate, a cavity, a trapezoidal top plate, a push rod and a connecting plate, the connecting plate is pulled to one side, and the connecting plate drives the two sets of trapezoidal top plates at the top to move, and the trapezoidal top plate then pushes the lifting plate at the top to rise through the push rod, and the lifting plate pushes the flexible circuit board at its top out from the inside of the groove, making it convenient for the staff to take out the flexible circuit board, and realizing the automatic ejection of the tested flexible circuit board, which is convenient for unloading. However, after the flexible circuit board is removed from the lifting plate, the staff is still required to push the connecting plate inward to reset it. At this time, the lifting plate can be reset downward under the influence of gravity, which will cause the staff to have more operating steps, which will increase the steps of subsequent flexible circuit board detection, and ultimately reduce the efficiency of subsequent flexible circuit board detection, so it needs to be improved. Utility Model Content

[0004] The embodiment of the utility model provides a contact detection jig for a flexible circuit board, aiming to solve the problem that the existing contact detection jig for a flexible circuit board has complicated operation steps when detecting a flexible circuit board, thereby reducing the efficiency of flexible circuit board detection.

[0005] The utility model provides a contact detection jig for a flexible circuit board, comprising a jig base, a carrier plate installed above the jig base, a removal structure movably installed on the carrier plate, the removal structure consisting of a connecting pull block, a connecting plate, a rectangular frame, a connecting square rod, a reset spring and a spring baffle, the connecting plate is fixedly installed at the rear end of the connecting pull block, the rectangular frame is fixedly installed at the rear end of the connecting plate, the connecting square rod is fixedly installed at the lower end of the connecting pull block, the reset spring is sleeved on the connecting square rod, and the spring baffle is fixedly installed at the lower end of the connecting square rod.

[0006] Furthermore, a mounting bracket is fixedly mounted on the upper end of the fixture base, and a needle plate is mounted on the mounting bracket.

[0007] Furthermore, the carrier plate is located directly below the needle plate.

[0008] Furthermore, a circuit board placement groove is provided at the upper end of the carrier plate, a frame-shaped storage groove is provided at the bottom end of the circuit board placement groove, and a connecting groove is provided at the upper end of the carrier plate, and the connecting groove is communicated with the circuit board placement groove.

[0009] Furthermore, a receiving groove is provided at the lower end of the carrier plate, and a connecting square hole is provided on the carrier plate, and the connecting square hole connects the connecting groove with the receiving groove.

[0010] Furthermore, the connection pull block on the removal structure is located in a connection groove opened at the upper end of the carrier board, and the connection plate and the rectangular frame are both located in a frame-shaped receiving groove opened at the bottom end of the circuit board placement groove.

[0011] Furthermore, the connecting square rod on the taking-out structure passes through the connecting square hole opened on the carrier plate.

[0012] Furthermore, the return spring and the spring baffle on the taking-out structure are both located in a receiving groove opened at the lower end of the carrier plate.

[0013] Compared with the prior art, by providing a removal structure on the carrier plate, when taking out the flexible circuit board in the circuit board placement groove, the staff can pull the connecting plate and the rectangular frame upwards through the connecting pull block, thereby using the connecting plate and the rectangular frame to push out the flexible circuit board in the circuit board placement groove. During this process, the spring baffle will compress the reset spring. When the flexible circuit board is removed, the connecting pull block will be released. At this time, under the elastic force of the reset spring, the rectangular frame and the connecting plate will automatically reset downward, thereby facilitating the removal of the flexible circuit board and reducing the number of operating steps for the staff. Ultimately, the steps of subsequent flexible circuit board detection will be reduced, thereby improving the efficiency of subsequent flexible circuit board detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the carrier plate and the removal structure of the utility model;

[0016] Figure 3 It is a cross-sectional view of the carrier plate of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the taking-out structure of the utility model.

[0018] Among them, 1. fixture base; 2. carrier plate; 3. removal structure; 4. mounting bracket; 5. needle plate; 6. circuit board placement slot; 7. frame-shaped storage slot; 8. connecting slot; 9. accommodating slot; 10. connecting square hole; 11. connecting pull block; 12. connecting plate; 13. rectangular frame; 14. connecting square rod; 15. reset spring; 16. spring baffle. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0021] When used herein, it should also be understood that the terms "include / comprise" or "have" etc. specify the existence of stated features, wholes, components, parts or combinations thereof, but do not exclude the possibility of the existence or addition of one or more other features, wholes, components, parts or combinations thereof. At the same time, the terms used in this specification include any and all combinations of the relevant listed items.

[0022] The utility model provides a contact detection tool for a flexible circuit board. Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it includes a jig base 1, a carrier plate 2 is installed above the jig base 1, a mounting bracket 4 is fixedly installed on the upper end of the jig base 1, a needle plate 5 is installed on the mounting bracket 4, the carrier plate 2 is located directly below the needle plate 5, a circuit board placement groove 6 is opened at the upper end of the carrier plate 2, a frame-shaped storage groove 7 is opened at the bottom end of the circuit board placement groove 6, a connecting groove 8 is opened at the upper end of the carrier plate 2, the connecting groove 8 is connected with the circuit board placement groove 6, a receiving groove 9 is opened at the lower end of the carrier plate 2, and a connecting square hole 10 is opened on the carrier plate 2, the connecting square hole 10 connects the connecting groove 8 with the receiving groove 9, the flexible circuit board to be tested is placed in the circuit board placement groove 6 on the carrier plate 2, ensuring that the contact point of the flexible circuit board corresponds to the test probe of the jig, and then starting the detection program so that the test probe of the jig contacts the contact point of the flexible circuit board. At this time, the jig will measure and record the resistance, voltage and other parameters of each contact point, and compare them with the preset qualified range. After the test is completed, the jig will provide the test results, including the test data of each contact point and the information on whether it is qualified.

[0023] A take-out structure 3 is movably installed on the carrier plate 2, and the take-out structure 3 is composed of a connecting pull block 11, a connecting plate 12, a rectangular frame 13, a connecting square rod 14, a reset spring 15 and a spring baffle 16. The connecting plate 12 is fixedly installed at the rear end of the connecting pull block 11, the rectangular frame 13 is fixedly installed at the rear end of the connecting plate 12, the connecting square rod 14 is fixedly installed at the lower end of the connecting pull block 11, the reset spring 15 is sleeved on the connecting square rod 14, and the spring baffle 16 is fixedly installed at the lower end of the connecting square rod 14. The connecting pull block 11 on the take-out structure 3 is located in the connecting groove 8 opened at the upper end of the carrier plate 2, the connecting plate 12 and the rectangular frame 13 are both located in the frame-shaped storage groove 7 opened at the bottom end of the circuit board placement groove 6, the connecting square rod 14 on the take-out structure 3 passes through the connecting square hole 10 opened on the carrier plate 2, and the reset spring 15 on the take-out structure 3 5 and the spring baffle 16 are both located in the accommodating groove 9 opened at the lower end of the carrier plate 2. By arranging the taking-out structure 3 on the carrier plate 2, when taking out the flexible circuit board in the circuit board placement groove 6, the staff can pull the connecting plate 12 and the rectangular frame 13 upwards through the connecting pull block 11, so as to use the connecting plate 12 and the rectangular frame 13 to push out the flexible circuit board in the circuit board placement groove 6. In this process, the spring baffle 16 will compress the reset spring 15. When the flexible circuit board is removed, the connecting pull block 11 is released. At this time, under the elastic force of the reset spring 15, the rectangular frame 13 and the connecting plate 12 will automatically reset downward, thereby facilitating the removal of the flexible circuit board and reducing the number of operating steps for the staff, which will eventually reduce the steps of subsequent flexible circuit board detection and improve the efficiency of subsequent flexible circuit board detection.

[0024] It should be noted that the utility model is a contact detection fixture for flexible circuit boards. During use, the flexible circuit board to be detected can be placed in the circuit board placement groove 6 opened at the upper end of the carrier board 2. At this time, the flexible circuit board will be at the upper end of the connecting plate 12 and the rectangular frame 13. When the flexible circuit board is detected and needs to be taken out, the connecting plate 12 and the rectangular frame 13 can be pulled upward by the connecting pull block 11. At this time, the connecting plate 12 and the rectangular frame 13 will push the flexible circuit board in the circuit board placement groove 6 out, and then the flexible circuit board can be conveniently removed from the upper end of the connecting plate 12 and the rectangular frame 13. While pulling the connecting pull block 11 upward, the connecting pull block 11 will drive the spring baffle 16 to move upward through the connecting square rod 14, and the upwardly moving spring baffle 16 will compress the reset spring 15. When the flexible circuit board is removed, the connecting pull block 11 can be released. At this time, under the elastic force of the reset spring 15, the connecting plate 12 and the rectangular frame 13 will be reset downward to the frame-shaped storage groove 7.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0026] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A contact detection jig for a flexible circuit board, comprising a jig base, a carrier board is installed above the jig base, characterized in that: A removal structure is movably installed on the carrier plate, and the removal structure consists of a connecting pull block, a connecting plate, a rectangular frame, a connecting square rod, a reset spring and a spring baffle. The connecting plate is fixedly installed at the rear end of the connecting pull block, the rectangular frame is fixedly installed at the rear end of the connecting plate, the connecting square rod is fixedly installed at the lower end of the connecting pull block, the reset spring is sleeved on the connecting square rod, and the spring baffle is fixedly installed at the lower end of the connecting square rod.

2. The contact detection jig for flexible printed circuit board according to claim 1, characterized in that: A mounting bracket is fixedly mounted on the upper end of the fixture base, and a needle plate is mounted on the mounting bracket.

3. The contact detection jig for flexible printed circuit board according to claim 2, characterized in that: The carrier plate is located directly below the needle plate.

4. The contact detection jig for flexible printed circuit board according to claim 1, characterized in that: The upper end of the carrier plate is provided with a circuit board placement groove, the bottom end of the circuit board placement groove is provided with a frame-shaped storage groove, and the upper end of the carrier plate is also provided with a connecting groove, which is communicated with the circuit board placement groove.

5. The contact detection jig for flexible printed circuit board according to claim 4, characterized in that: A receiving groove is provided at the lower end of the carrier plate, and a connecting square hole is provided on the carrier plate, and the connecting square hole connects the connecting groove with the receiving groove.

6. The contact detection jig for flexible printed circuit board according to claim 4, characterized in that: The connecting pull block on the taking-out structure is located in a connecting groove opened at the upper end of the carrier plate, and the connecting plate and the rectangular frame are both located in a frame-shaped receiving groove opened at the bottom end of the circuit board placement groove.

7. The contact detection jig for flexible printed circuit board according to claim 4, characterized in that: The connecting square rod on the taking-out structure passes through the connecting square hole opened on the carrying plate.

8. The contact detection jig for flexible printed circuit board according to claim 4, characterized in that: The return spring and the spring baffle on the taking-out structure are both located in the receiving groove opened at the lower end of the carrier plate.

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