Probe light device

Abstract

The utility model discloses a kind of probe lighting device, it is related to backlight product detection field, including pedestal, compression module, probe module, the compression module is set on pedestal, the probe module is set at the just below of compression module, the pedestal is symmetrically provided with guiding component, guiding component is connected with compression module;The utility model eliminates installation error by PCB board, flexible polyurethane briquetting reduces FPC damage, compact structure and high stability, it is suitable for the lighting detection of FPC gold finger thin Pin extremely backlight product.

Description

Technical Field

[0001] This utility model relates to the field of backlight product testing technology, and in particular to a probe lighting device for FPC (flexible printed circuit board) gold finger fine pin backlight products. Background Technology

[0002] During the production and testing of backlight products, the pins (conductive leads) on the gold fingers of some backlight products' FPC (flexible printed circuit boards) are too small, making it difficult for conventional lighting fixtures to make stable contact with the pins and thus preventing reliable lighting tests of the products.

[0003] To solve the contact problem of fine pin electrodes, the industry often considers using probe lighting, but existing probe lighting solutions have the following technical drawbacks: 1. Poor applicability of single-point probes: Conventional single-point probes are relatively large in size, making it difficult to arrange them compactly in fixtures for fine-pin FPCs, resulting in low design flexibility. 2. Large error in the upper and lower mold-separation mounting plates: If a thinner double-headed probe is used, it needs to be fixed with a mounting plate with an upper and lower mold-separation structure. However, this type of mounting plate is difficult to process and is prone to cumulative error during splicing and installation. 3. Probe performance and maintenance issues: Installation errors can lead to unstable contact between the probe and the FPC gold fingers and circuit contacts, which not only shortens the probe's lifespan but also easily causes probe jamming and inability to stably light up the product. In addition, disassembly and maintenance are cumbersome and affect production efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems and provide a probe lighting device.

[0005] To achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by this utility model is: a probe lighting device, including a base, a pressing module, and a probe module, characterized in that: the pressing module is disposed on the base, the probe module is disposed directly below the pressing module, and guide components are symmetrically disposed on the base, the guide components being connected to the pressing module; The probe module includes a probe positioning plate, a probe, a positioning pin, and a PCB circuit board. One end of the probe passes through the probe positioning plate and contacts the FPC gold finger, while the other end contacts the PCB circuit board. The positioning pin passes through the positioning holes of the probe positioning plate and the PCB circuit board to ensure the accuracy of the connection between the probe and the PCB circuit board. The bottom of the PCB circuit board is provided with quick-connect terminals for connecting to an external power supply via a wire harness.

[0006] Preferably, the pressing module includes a quick clamp, a quick clamp connecting plate A, and a quick clamp connecting plate B. The quick clamp is connected to the base through a quick clamp mounting plate assembly. A connecting rod is provided on the quick clamp. The end of the connecting rod away from the quick clamp passes through the quick clamp connecting plate A and connects to the quick clamp connecting plate B. A polyurethane pressure block is provided on the quick clamp connecting plate B, and the polyurethane pressure block contacts the FPC gold fingers.

[0007] Preferably, the pressing module also includes a cylinder structure component, which is located at the original quick clamp mounting position.

[0008] Preferably, the quick clamp mounting plate assembly, quick clamp connecting plate A, and quick clamp connecting plate B are all detachable connection structures, used to realize the disassembly and maintenance of the pressing module components.

[0009] Preferably, the probe positioning plate is provided with a countersunk structure that is adapted to the probe head.

[0010] Preferably, the guide assembly includes a guide bearing, and a guide post is inserted inside the guide bearing. One end of the guide post is connected to the quick clamp connecting plate B, and the other end is connected to the guide post mounting plate, which is used to limit the offset of the polyurethane pressure block in vertical movement.

[0011] Preferably, the probe is a dual-headed probe, and the diameter of the probe is adapted to the lighting requirements of the fine pin electrode of the FPC gold finger.

[0012] Compared with the traditional structure, the beneficial effects of this utility model are: This invention uses a PCB circuit board to replace the traditional upper and lower mold mounting board, eliminating the need for complex processing, reducing cumulative errors, and lowering production and maintenance costs.

[0013] By using precise positioning pins, preset probe exposure length, and flexible pressing contact, the probe is ensured to make stable contact with the FPC gold fingers, avoiding repeated lighting operations and improving detection efficiency.

[0014] The flexible material properties of polyurethane blocks effectively reduce the pressure damage and scratches on the FPC gold fingers during the pressing process, thereby reducing the product defect rate.

[0015] The integrated probe module can be quickly migrated between manual fixtures and automated equipment to adapt to different production needs and improve equipment utilization. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a schematic diagram of the probe module structure of this utility model; Figure 4 This is a schematic diagram of the probe module of this utility model from the left side. In the diagram: 1. Base, 2. Quick clamp mounting plate assembly, 3. Pressing module, 31. Quick clamp, 32. Connecting rod, 33. Quick clamp connecting plate A, 34. Quick clamp connecting plate B, 35. Polyurethane pressure block, 4. Probe module, 41. Probe positioning plate, 42. PCB circuit board, 43. Quick connector terminal, 44. Probe, 45. Positioning pin, 5. Guide bearing, 6. Guide post, 7. Guide post mounting plate, 8. FPC gold finger. Detailed Implementation

[0017] The present invention will be further described below.

[0018] See attached document Figure 1-4 A probe lighting device includes a base 1, a pressing module 3, and a probe module 4, characterized in that: the pressing module 3 is disposed on the base 1, the probe module 4 is disposed directly below the pressing module 3, and guide components are symmetrically disposed on the base 1, the guide components being connected to the pressing module 3; The probe module 4 includes a probe positioning plate 41, a probe 44, a positioning pin 45, and a PCB circuit board 42. One end of the probe 44 passes through the probe positioning plate 41 and contacts the contact point of the FPC gold finger 8, and the exposed length of the contact end is set. The other end contacts the contact point of the PCB circuit board 42. The positioning pin 45 passes through the positioning holes of the probe positioning plate 41 and the PCB circuit board 42 to ensure the accuracy of the circuit connection between the probe 44 and the PCB circuit board 42. The bottom of the PCB circuit board 42 is provided with a quick-connect terminal 43 for connecting to an external power supply through a wire harness.

[0019] In this preferred embodiment, the pressing module 3 includes a quick clamp 31, a quick clamp connecting plate A33, and a quick clamp connecting plate B34. The quick clamp 31 is connected to the base 1 through the quick clamp mounting plate assembly 2. A connecting rod 32 is provided on the quick clamp 31. The end of the connecting rod 32 away from the quick clamp 31 passes through the quick clamp connecting plate A33 and connects to the quick clamp connecting plate B34. A polyurethane pressure block 35 is provided on the quick clamp connecting plate B34, and the polyurethane pressure block 35 contacts the FPC gold finger 8.

[0020] In this preferred embodiment, the pressing module 3 further includes a cylinder structure component, which is located at the installation position of the original quick clamp 31.

[0021] In this preferred embodiment, the polyurethane pressure block 35 is made of a flexible material between plastic and rubber. When it comes into contact with the FPC gold finger 8, it can stably trigger the probe 44 to light up the product and reduce the pressure scratches on the FPC gold finger end 8.

[0022] In this preferred embodiment, the quick clamp mounting plate assembly 2, the quick clamp connecting plate A33, and the quick clamp connecting plate B34 are all detachable connection structures, used to realize the disassembly and maintenance of the pressing module 3 components.

[0023] In this preferred embodiment, the probe positioning plate 41 is provided with a countersunk structure that is adapted to the head of the probe 44.

[0024] In this preferred embodiment, the guide assembly includes a guide bearing 5, and a guide post 6 is inserted inside the guide bearing 5. One end of the guide post 6 is connected to the quick clamp connecting plate B34, and the other end is connected to the guide post mounting plate 7, which is used to limit the offset of the polyurethane pressure block 35 in vertical movement.

[0025] In this preferred embodiment, the probe 44 is a dual-headed probe, and the diameter of the probe 44 is adapted to the lighting requirements of the 8 fine pin electrodes of the FPC gold finger.

[0026] In specific implementation, the pressing module is assembled with the base: the quick clamp 31 is fixed on the quick clamp mounting plate assembly 2, and the quick clamp 31 is connected to the base 1 through the quick clamp mounting plate assembly 2; the polyurethane pressing block 35 is fixed below the quick clamp 31 using the quick clamp connecting plate A33 and the quick clamp connecting plate B34 to form a complete pressing transmission chain; the guide post 6 is installed on the guide post mounting plate 7 after passing through the guide bearing 5 to ensure that the polyurethane pressing block 35 moves up and down without deviation.

[0027] Probe module assembly: Insert the positioning pin 45 into the mounting hole of the probe positioning plate 41. The longer end of the double-headed probe 44 is installed in the countersunk structure of the probe positioning plate 41. Align the positioning hole of the PCB circuit board 42 with the positioning pin 45 and tighten the screws to fix it so that the other end of the double-headed probe 44 makes precise contact with the contact point of the PCB circuit board 42. The assembled probe module 4 is installed on the base 1 and located directly below the polyurethane pressure block 35. Circuit connection: Connect the quick-connect terminal 43 of the probe module 4 to the external power supply through the wire harness to complete the circuit conduction preparation.

[0028] Place the FPC to be tested into the slot at the top of the probe positioning plate 41, ensuring that the contact ends of the FPC gold fingers 8 and the dual-headed probe 44 are aligned; manually press the quick clamp 31 to the locked state, driving the polyurethane pressure block 35 to move downward, contacting the FPC gold fingers 8 and applying stable pressure; under the pressure, the two ends of the dual-headed probe 44 are tightly pressed against the contacts of the PCB circuit board 42 and the contacts of the FPC gold fingers 8 respectively, the circuit is connected, and the product is lit up for testing.

[0029] If the probe module 4 is moved from a manual fixture to an automated device: remove the manually driven quick clamp 31 and replace it with a cylinder structure component that is compatible with the automated device; connect the adapter terminal line of the automated device at the quick-connect terminal 43, and it can be put into automated production directly without adjusting the internal structure of the probe module 4.

[0030] The above embodiments of this utility model are merely examples to clearly illustrate this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent technical solutions also fall within the scope of this utility model, and the patent protection scope of this utility model should be defined by each claim.

Claims

1. A probe lighting device, comprising a base (1), a pressing module (3), and a probe module (4), characterized in that: The pressing module (3) is set on the base (1), the probe module (4) is set directly below the pressing module (3), and the base (1) is symmetrically provided with guide components, which are connected to the pressing module (3). The probe module (4) includes a probe positioning plate (41), a probe (44), a positioning pin (45), and a PCB circuit board (42). One end of the probe (44) passes through the probe positioning plate (41) and contacts the contact of the FPC gold finger (8), and the other end contacts the contact of the PCB circuit board (42). The positioning pin (45) passes through the positioning holes of the probe positioning plate (41) and the PCB circuit board (42) to ensure the accuracy of the circuit connection between the probe (44) and the PCB circuit board (42). The bottom of the PCB circuit board (42) is provided with a quick-connect terminal (43) for connecting to an external power supply through a wire harness.

2. The probe lighting device according to claim 1, characterized in that: The pressing module (3) includes a quick clamp (31), a quick clamp connecting plate A (33), and a quick clamp connecting plate B (34). The quick clamp (31) is connected to the base (1) through the quick clamp mounting plate assembly (2). A connecting rod (32) is provided on the quick clamp (31). The end of the connecting rod (32) away from the quick clamp (31) passes through the quick clamp connecting plate A (33) and connects to the quick clamp connecting plate B (34). A polyurethane pressure block (35) is provided on the quick clamp connecting plate B (34). The polyurethane pressure block (35) contacts the FPC gold finger (8).

3. The probe lighting device according to claim 2, characterized in that: The pressing module (3) also includes a cylinder structure component, which is set at the installation position of the original quick clamp (31).

4. The probe lighting device according to claim 2, characterized in that: The quick clamp mounting plate assembly (2), quick clamp connecting plate A (33) and quick clamp connecting plate B (34) are all detachable connection structures used to realize the disassembly and maintenance of the pressing module (3) components.

5. The probe lighting device according to claim 1, characterized in that: The probe positioning plate (41) is provided with a countersunk structure that is adapted to the head of the probe (44).

6. The probe lighting device according to claim 1, characterized in that: The guide assembly includes a guide bearing (5), and a guide post (6) is inserted inside the guide bearing (5). One end of the guide post (6) is connected to the quick clamp connecting plate B (34), and the other end is connected to the guide post mounting plate (7) to limit the offset of the polyurethane pressure block (35) moving up and down.

7. The probe lighting device according to claim 1, characterized in that: The probe (44) is a dual-headed probe, and the diameter of the probe (44) is adapted to the lighting requirements of the fine pin electrode of the FPC gold finger (8).

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