Electromagnetic compatibility testing device for mobile power supply circuit board

Abstract

The utility model relates to the technical field of electromagnetic compatibility testing, in particular to a mobile power supply circuit board electromagnetic compatibility testing device which comprises a base and an electromagnetic compatibility detection head, a first clamping plate, a telescopic rod and a hydraulic cylinder are fixedly installed on the base, and a fixing block connected with the output end of the telescopic rod is arranged in the base in a sliding and sleeved mode. And a clamping plate II which corresponds to the clamping plate I and is used for clamping the circuit board is fixedly mounted on the fixing block. According to the utility model, one end of the telescopic rod drives the clamping plate II to move, so that the clamping plate I and the clamping plate II can limit the circuit board from two side positions, and the two clamping plates clamp the circuit board from two end positions, thereby ensuring the stability of the circuit board during detection; the clamping seat is driven by the output end of the hydraulic cylinder to move to the position above the circuit board, the rack is driven by the motor to slide in the clamping seat to drive the electromagnetic compatibility detection head to rotate, and the circuit board detection efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic compatibility testing, in particular to an electromagnetic compatibility testing device for a mobile power supply circuit board. Background Art

[0002] A circuit board is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the base material. After the circuit board is produced, it will undergo electromagnetic compatibility testing. Electromagnetic compatibility testing refers to the ability of a device or system to operate in its electromagnetic environment and meet the requirements without generating intolerable electromagnetic interference to any device in its environment.

[0003] When the circuit board is undergoing electromagnetic compatibility testing, the circuit board will be placed on the workbench for detection. When the circuit board is being detected, a fixture will be used to clamp the circuit board, and the detection head will be extended to the circuit board for detection. Currently, when the fixture limits the position of the circuit board, it will apply pressure to the circuit board through the fixture, and it is difficult to control the pressing force of the fixture, which will cause indentation or fracture of the circuit board during clamping, making it impossible to guarantee the stability of the circuit board during detection; when the circuit board is undergoing electromagnetic compatibility testing, the detection head is mostly fixedly installed on the workbench, and the fixed installation of the detection head makes it difficult to adjust the detection angle of the detection head, which not only affects the adaptability of the detection equipment but also affects the detection efficiency of the circuit board. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem that the detection angle of the detection head cannot be adjusted when the circuit board is undergoing electromagnetic compatibility testing in the prior art, and to propose an electromagnetic compatibility testing device for a mobile power supply circuit board.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An electromagnetic compatibility testing device for a mobile power supply circuit board, including a base and an electromagnetic compatibility detection head. A clamping plate one, a telescopic rod, and a hydraulic cylinder are fixedly installed on the base. A fixed block connected to the output end of the telescopic rod is slidably sleeved in the base, and a clamping plate two corresponding to the clamping plate one and used for clamping the circuit board is fixedly installed on the fixed block. A support is fixedly installed on the clamping plate one, and a guide rod is fixedly installed inside the support. Symmetrically arranged sliders are slidably sleeved on the guide rod, and a connecting rod is fixedly installed on the slider. A clamping plate for clamping the circuit board is fixedly installed on the connecting rod. The output end of the hydraulic cylinder is fixedly connected to a clamping seat, and a rack is slidably sleeved in the clamping seat. The electromagnetic compatibility detection head is arranged on the rack.

[0007] Preferably, the clamping plate one and the clamping plate two are horizontally arranged corresponding to each other, and the clamping plate one and the clamping plate two are of a concave structure. Silicone pads that are movably abutted against the circuit board are arranged on the clamping plate one and the clamping plate two.

[0008] Preferably, the guide rod is horizontally arranged, and the clamping plate and the connecting rod extend to one side outside the bracket.

[0009] Preferably, a frame is fixedly installed on the slider, and a limiting frame extending into the bracket is placed on the frame. The limiting frame is of a T-shaped structure, and positioning holes evenly distributed and corresponding to the limiting frame are formed on the bracket.

[0010] Preferably, a motor is fixedly installed on the card seat, and a rotating shaft drivingly connected to the rack is fixedly connected to the output end of the motor.

[0011] Preferably, the card seat is of an annular structure, the rotating shaft is horizontally arranged, and a gear meshing with the rack is fixedly installed on the rotating shaft.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] 1. One end of the telescopic rod of the present utility model drives the second clamping plate to move, so that the first clamping plate and the second clamping plate can limit the circuit board from both sides. Then, by pulling the two frames, the two clamping plates clamp the circuit board from both ends, thereby ensuring the stability of the circuit board during detection.

[0014] 2. The output end of the hydraulic cylinder of the present utility model drives the card seat to move to a position above the circuit board, and when the rack slides in the card seat driven by the motor, the electromagnetic compatibility detection head can be driven to rotate, thereby adjusting the detection direction of the electromagnetic compatibility detection head and effectively improving the detection efficiency of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a mobile power supply circuit board electromagnetic compatibility test device proposed by the present utility model;

[0016] Figure 2 is a sectional view of a mobile power supply circuit board electromagnetic compatibility test device proposed by the present utility model;

[0017] Figure 3 is a rear view of a mobile power supply circuit board electromagnetic compatibility test device proposed by the present utility model;

[0018] Figure 4 is a side view of a mobile power supply circuit board electromagnetic compatibility test device proposed by the present utility model.

[0019] In the figure: 1. Base; 2. First clamping plate; 3. Telescopic rod; 4. Fixed block; 5. Second clamping plate; 6. Bracket; 7. Guide rod; 8. Slide block; 9. Frame; 10. Limiting frame; 11. Connecting rod; 12. Clamping plate; 13. Hydraulic cylinder; 14. Card seat; 15. Rack; 16. Motor; 17. Rotating shaft; 18. Gear. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Refer to Figures 1-4 , a mobile power supply circuit board electromagnetic compatibility test device, including a base 1 and an electromagnetic compatibility detection head. After the electromagnetic compatibility detection head is powered on, it can detect the circuit board. This technical solution is prior art and will not be elaborated here;

[0022] A first clamping plate 2, a telescopic rod 3, and a hydraulic cylinder 13 are fixedly installed on the base 1. A fixed block 4 connected to the output end of the telescopic rod 3 is slidably sleeved in the base 1, and a second clamping plate 5 corresponding to the first clamping plate 2 and used to clamp the circuit board is fixedly installed on the fixed block 4. The first clamping plate 2 can clamp the left side of the circuit board. When the output end of the telescopic rod 3 drives the fixed block 4 to slide in the base 1, the fixed block 4 drives the second clamping plate 5 to gradually approach the first clamping plate 2 and clamp the right side of the circuit board;

[0023] The first clamping plate 2 and the second clamping plate 5 are horizontally arranged corresponding to each other, and the first clamping plate 2 and the second clamping plate 5 are of concave structures. Silicone pads that are movably abutted against the circuit board are provided on the first clamping plate 2 and the second clamping plate 5. A bracket 6 is fixedly installed on the first clamping plate 2, and a guide rod 7 is fixedly installed inside the bracket 6. By providing silicone pads in the first clamping plate 2 and the second clamping plate 5, the first clamping plate 2 and the second clamping plate 5 will not cause excessive extrusion to the circuit board when limiting the position of the circuit board;

[0024] Symmetrically arranged slide blocks 8 are slidably sleeved on the guide rod 7, and a connecting rod 11 is fixedly installed on the slide blocks 8. A clamping plate 12 used to clamp the circuit board is fixedly installed on the connecting rod 11. The guide rod 7 is horizontally arranged, and the clamping plate 12 and the connecting rod 11 extend to one side outside the bracket 6. The guide rod 7 plays a guiding role for the slide blocks 8, so that the slide blocks 8 can stably pull the connecting rod 11 and the clamping plate 12 when moving. By clamping the circuit board from both sides with the clamping plate 12, the stability of the circuit board during detection can be guaranteed;

[0025] A frame 9 is fixedly installed on the slider 8, and a limiting frame 10 extending into the bracket 6 is placed on the frame 9. The limiting frame 10 is of a T-shaped structure, and the bracket 6 is provided with uniformly distributed positioning holes corresponding to the limiting frame 10. After the two clamping plates 12 clamp the circuit board, the limiting frame 10 is extended into the positioning holes and the bracket 6, thereby locking the position of the slider 8. The output end of the hydraulic cylinder 13 is fixedly connected with a clamping seat 14, and a rack 15 is slidably sleeved in the clamping seat 14. The electromagnetic compatibility detection head is arranged on the rack 15;

[0026] A motor 16 is fixedly installed on the clamping seat 14, and the output end of the motor 16 is fixedly connected with a rotating shaft 17 drivingly connected with the rack 15. The clamping seat 14 is of an annular structure, the rotating shaft 17 is horizontally arranged, and a gear 18 meshing with the rack 15 is fixedly installed on the rotating shaft 17. The output end of the motor 16 drives the rotating shaft 17 and the gear 18 to rotate. When the gear 18 rotates, it is pulled by the rack 15 connected by meshing, so that the rack 15 drives the electromagnetic compatibility detection head to rotate, thereby adjusting the detection direction of the electromagnetic compatibility detection head and improving the adaptability of the detection device;

[0027] It should be noted that the specific model specifications of the telescopic rod 3, the hydraulic cylinder 13, and the motor 16 need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated.

[0028] The function principle of the present utility model can be described through the following operation mode:

[0029] The left end of the circuit board is extended onto the first clamping plate 2, and the output end of the telescopic rod 3 drives the fixed block 4 to slide on the base 1. The fixed block 4 drives the second clamping plate 5 to gradually approach the first clamping plate 2 and clamp the right side of the circuit board;

[0030] Press the frame 9, so that the frame 9 drives the two sliders 8 to move towards each other. When the sliders 8 move, they drive the connecting rod 11 and the clamping plates 12 to move, so that the two clamping plates 12 and the silica gel pads clamp the circuit board from both sides. Place the limiting frame 10 in the frame 9, so that the limiting frame 10 extends into the bracket 6 through the positioning holes;

[0031] The telescopic movement of the output end of the hydraulic cylinder 13 drives the clamping seat 14 to move, so that the clamping seat 14 drives the electromagnetic compatibility detection head to move to a position above the circuit board;

[0032] After the electromagnetic compatibility detection head is powered on, it detects the circuit board;

[0033] When it is necessary to adjust the detection position of the circuit board;

[0034] The output end of the motor 16 drives the rotating shaft 17 to rotate. The rotating shaft 17 drives the gear 18 to traction the engaged rack 15. The rack 15 slides in the card seat 14. When the rack 15 moves, it can drive the electromagnetic compatibility detection head to rotate, thereby adjusting the detection direction of the electromagnetic compatibility detection head.

[0035] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A mobile power supply circuit board electromagnetic compatibility test device, comprising a base (1) and an electromagnetic compatibility detection head, characterized in that: A card plate 1 (2), a telescopic rod (3), and a hydraulic cylinder (13) are fixedly mounted on the base (1); a fixed block (4) connected to the output end of the telescopic rod (3) is provided on a sliding sleeve inside the base (1); a card plate 2 (5) corresponding to the card plate 1 (2) and used for clamping a circuit board is fixedly mounted on the fixed block (4); a bracket (6) is fixedly mounted on the card plate 1 (2); a guide rod (7) is fixedly mounted inside the bracket (6); a sliding sleeve on the guide rod (7) is provided with a symmetrically arranged slide block (8); a connecting rod (11) is fixedly mounted on the slide block (8); a clamping plate (12) used for clamping a circuit board is fixedly mounted on the connecting rod (11); a card seat (14) is fixedly connected to the output end of the hydraulic cylinder (13); a rack (15) is provided on the sliding sleeve inside the card seat (14); and the electromagnetic compatibility detection head is arranged on the rack (15).

2. A mobile power supply circuit board electromagnetic compatibility testing device according to claim 1, characterized in that: The first card plate (2) and the second card plate (5) are arranged horizontally corresponding to each other, and the first card plate (2) and the second card plate (5) are concave structures. The first card plate (2) and the second card plate (5) are provided with silicone pads that can be movably abutted against the circuit board.

3. The electromagnetic compatibility test device for a mobile power supply circuit board according to claim 1, characterized in that: The guide rod (7) is arranged horizontally, and the clamping plate (12) and the connecting rod (11) extend to a side position outside the bracket (6).

4. The electromagnetic compatibility test device for a mobile power supply circuit board according to claim 1, characterized in that: A frame (9) is fixedly mounted on the slider (8), and a limit frame (10) extending into the bracket (6) is placed on the frame (9); the limit frame (10) is a T-shaped structure, and the bracket (6) is provided with evenly distributed positioning holes corresponding to the limit frame (10).

5. The electromagnetic compatibility testing device for a mobile power supply circuit board according to claim 1, characterized in that: A motor (16) is fixedly mounted on the holder (14), and a rotating shaft (17) which is transmission-connected to the rack (15) is fixedly connected to the output end of the motor (16).

6. The electromagnetic compatibility testing device for a mobile power supply circuit board according to claim 5, characterized in that: The holder (14) is an annular structure, the rotating shaft (17) is arranged horizontally, and a gear (18) meshingly connected with the rack (15) is fixedly mounted on the rotating shaft (17).

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