FPC (Flexible Printed Circuit) loop electrical test conduction jig

Abstract

The utility model relates to the technical field of testing devices, in particular to an FPC loop electrical test conduction jig which comprises a jig base, a flexible printed circuit board and a copper plate, a containing groove is concavely formed in the upper end face of the jig base, a magnetic reinforcing strip is embedded in the bottom of the containing groove, a plurality of evenly-distributed grooves are concavely formed in the lower end face of the copper plate, and the magnetic reinforcing strip is embedded in the containing groove. A groove is formed in the upper end face of the copper plate, a magnet is arranged in the groove, the copper plate is embedded in the containing groove, and the flexible printed circuit board is provided with a plurality of testing terminals and is attracted to the upper end face of the copper plate. The FPC loop electrical test conduction jig can solve the problem that various defects of a nickel sheet are easily caused in the testing process of an FPC, meanwhile, the compatibility of testing of different products is enhanced, the contact stability is higher, the precision is higher, and the maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically to an FPC circuit electrical testing and conduction fixture. Background Technology

[0002] After the circuit board or battery acquisition board is manufactured, it needs to undergo various tests, such as conductivity and insulation. Due to differences in structure and circuit design, different circuit boards have different models and specifications. To test different circuit board products, different model and specification test fixtures need to be developed. The development cost of test fixtures is high and the cycle is long, which cannot meet the needs of production and testing. Furthermore, existing electrical test circuit acquisition uses probe conduction or press-contact conduction, both of which have a drawback: the FPC nickel sheet is prone to imprinting, scratches, and deformation, causing product scrap or even poor soldering with CCS, leading to problems with the entire module. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an FPC circuit electrical test continuity fixture. This FPC circuit electrical test continuity fixture can solve the problem of various defects in nickel sheets that are easily caused during FPC testing, while enhancing the compatibility of testing different products, with stronger contact stability, higher accuracy, and lower maintenance costs.

[0004] The objective of this utility model is achieved through the following technical solution: an FPC circuit electrical testing continuity fixture, comprising a fixture base, a flexible printed circuit board, and a copper plate. The upper end face of the fixture base is recessed with a receiving groove, and a magnetic reinforcing strip is embedded in the bottom of the receiving groove. The lower end face of the copper plate is recessed with several evenly distributed grooves, and a magnet is disposed in each groove. The copper plate is embedded in the receiving groove. The flexible printed circuit board is provided with multiple test terminals and is adsorbed onto the upper end face of the copper plate.

[0005] Furthermore, the test terminal is a nickel plate.

[0006] Furthermore, the upper surface of the copper plate is also provided with conductive cloth, which is located on one side of the flexible printed circuit board.

[0007] Furthermore, the upper surface of the fixture base is provided with a plurality of first hand positions, which are located at the edge of the groove of the receiving slot.

[0008] Furthermore, the lower end face of the fixture base is provided with a set of second hand positions, which are located at both ends of the fixture base.

[0009] Furthermore, the magnetic reinforcing strip is attached to the upper and lower surfaces of the fixture base, and the bottom of the magnetic reinforcing strip is provided with several evenly distributed positioning holes.

[0010] Furthermore, the copper plate is provided with fixing holes corresponding to the positions of the positioning holes.

[0011] Furthermore, the flexible printed circuit board is provided with a main connector, which is located at the end of the flexible printed circuit board.

[0012] The beneficial effects of this utility model are as follows: the FPC circuit electrical test continuity fixture of this utility model can solve the various defects of nickel sheets that are easily caused during the testing of FPC, while enhancing the compatibility of testing different products, with stronger contact stability and higher accuracy, and directly eliminating one descent action during testing, saving time and reducing maintenance costs. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention;

[0014] Figure 2 This is a first exploded view of the present invention;

[0015] Figure 3 This is a second exploded view of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of the copper plate of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the base of this utility model.

[0018] The attached figures are labeled as follows: 1-base, 11-accommodating groove, 12-first insertion position, 13-second insertion position, 2-flexible printed circuit board, 21-test terminal, 22-main insertion interface, 3-copper plate, 31-groove, 32-fixing hole, 4-magnetic reinforcing strip, 41-positioning hole, 5-magnet, 6-conductive cloth. Detailed Implementation

[0019] To facilitate understanding by those skilled in the art, the following description is provided in conjunction with embodiments and appendices. Figure 1-5 The present invention will be further described below. The content mentioned in the embodiments is not intended to limit the present invention.

[0020] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or indirectly on that other component.

[0021] When a component is said to be "connected to" another component, it can be directly connected to the other component or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0024] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0025] See Figure 1-5 A continuity testing fixture for an FPC circuit includes a fixture base 1, a flexible printed circuit board 2, and a copper plate 3. The upper surface of the fixture base 1 has a recessed receiving groove 11, and a magnetic reinforcing strip 4 for reinforcement is embedded at the bottom of the receiving groove 11. The lower surface of the copper plate 3 has several evenly distributed grooves 31, and a magnet 5 is disposed within each groove 31. The copper plate 3 is embedded within the receiving groove 11. The flexible printed circuit board 2 has multiple test terminals 21 and is adsorbed onto the upper surface of the copper plate 3. A conductive cloth 6 is also provided on the upper surface of the copper plate 3, located on one side of the flexible printed circuit board 2. The test terminals 21 are nickel sheets.

[0026] The FPC circuit electrical testing continuity fixture of this embodiment can solve various defects of the nickel sheet that are easily caused during FPC testing, while enhancing the compatibility of testing different products, providing stronger contact stability and higher accuracy. It also eliminates a descent step during testing, saving time and reducing maintenance costs. Specifically, by embedding a high-temperature resistant magnet 5 on the back of the highly conductive copper plate 3, it is easier to attract the flexible printed circuit board 2. Since there is a height difference (contact gap) between the flexible printed circuit board 2 and the nickel sheet, the conductive cloth 6 added to one side of the flexible printed circuit board 2 can increase the contact area, eliminate impedance, and improve testing accuracy. Controlling the thickness of the conductive cloth 6 to less than 0.05mm ensures minimal impedance, allowing the nickel sheet of the flexible printed circuit board 2 to efficiently conduct the circuit and collect line resistance.

[0027] In this embodiment, the upper surface of the fixture base 1 is also provided with a plurality of first insertion positions 12. The first insertion positions 12 are located at the edge of the groove of the receiving groove 11. The first insertion positions 12 facilitate the assembly or disassembly of the fixture base 1 and the copper plate 3.

[0028] In this embodiment, the lower end face of the fixture base 1 is also provided with a set of second insert positions 13, which are located at both ends of the fixture base 1, making it convenient for the fixture to be moved or fixed.

[0029] In this embodiment, the magnetic reinforcing strip 4 is attached to the upper and lower surfaces of the fixture base 1, and the bottom of the magnetic reinforcing strip 4 is provided with a plurality of evenly distributed positioning holes 41; the copper plate 3 is provided with fixing holes 32 corresponding to the positions of the positioning holes 41.

[0030] In this embodiment, the positioning hole 41 provided at the bottom of the magnetic reinforcing strip 4 facilitates the mounting of the fixture on the worktable of the testing equipment. At the same time, combined with the fixing hole 32 on the copper plate 3, the fixture can be well fixed on the worktable of the testing equipment, which increases the stability during the testing process and further improves the testing accuracy.

[0031] In this embodiment, a main connector 22 is provided on the flexible printed circuit board 2, and the main connector 22 is located at the end of the flexible printed circuit board 2.

[0032] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A continuity testing fixture for an FPC circuit, characterized in that: The fixture includes a base, a flexible printed circuit board, and a copper plate. The upper surface of the base is recessed with a receiving groove, and a magnetic reinforcing strip is embedded at the bottom of the receiving groove. The lower surface of the copper plate is recessed with several evenly distributed grooves, and a magnet is placed in each groove. The copper plate is embedded in the receiving groove. The flexible printed circuit board is provided with multiple test terminals and is attached to the upper surface of the copper plate.

2. The FPC circuit electrical continuity testing fixture according to claim 1, characterized in that: The test terminal is a nickel plate.

3. The FPC circuit electrical continuity testing fixture according to claim 1, characterized in that: The upper surface of the copper plate is also provided with conductive cloth, which is located on one side of the flexible printed circuit board.

4. The FPC circuit electrical continuity testing fixture according to claim 1, characterized in that: The upper surface of the fixture base is also provided with a number of first hand positions, which are located at the edge of the groove of the receiving groove.

5. The FPC circuit electrical continuity testing fixture according to claim 1, characterized in that: The lower end face of the fixture base is also provided with a second set of hand positions, which are located at both ends of the fixture base.

6. The FPC circuit electrical continuity testing fixture according to claim 1, characterized in that: The magnetic reinforcing strip is attached to the upper and lower surfaces of the fixture base, and the bottom of the magnetic reinforcing strip is provided with several evenly distributed positioning holes.

7. The FPC circuit electrical continuity testing fixture according to claim 6, characterized in that: The copper plate has fixing holes at the positions corresponding to the positioning holes.

8. The FPC circuit electrical continuity testing fixture according to claim 1, characterized in that: The flexible printed circuit board is provided with a main connector, which is located at the end of the flexible printed circuit board.

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