Anti-falling coupling plate clamp for electrostatic discharge test

Abstract

The utility model provides a kind of anti-slip coupling plate clamp for electrostatic discharge test, it is related to electromagnetic compatibility test field.The anti-slip coupling plate clamp for electrostatic discharge test, including U-shaped main body, the outer surface of U-shaped main body is equipped with conical positioning hole, the inside of U-shaped main body is provided with fixed mechanism, the fixed mechanism includes limiting slide bar, the outer surface of limiting slide bar and U-shaped main body are slidably connected.The fixture is set by the cooperation of U-shaped main body, fixed mechanism and conical positioning hole, realizes anti-slip, anti-discharge impact, overall is insulating material, avoids metal intervention interference electric field, guarantees test accuracy, plastic screw rod supports pressure fine adjustment, compatible with different thickness coupling plate, structure is simple, light in weight, small in size, convenient to carry and install, additional silica gel pad disperses pressure, prevent bruising thin plate, conical positioning hole hole is polished and handled to protect electrostatic gun head, significantly reduce equipment loss.

Description

Technical Field

[0001] This utility model relates to a coupling plate clamp, specifically an anti-slip coupling plate clamp for electrostatic discharge testing, belonging to the field of electromagnetic compatibility testing technology. Background Technology

[0002] In electromagnetic compatibility (EMC) testing, electrostatic discharge (ESD) immunity testing is a fundamental test item. Indirect discharge testing simulates a discharge gun discharging a coupling plate near the device under test (DUT) to test the DUT's immunity to nearby electrostatic discharge phenomena.

[0003] Current standard testing methods (IEC 61000-4-2) require the tester to hold the discharge gun, positioning the tip perpendicular to the coupling plate surface and as close to the center as possible during discharge. However, in practice, the following technical drawbacks exist: Easy slippage: The coupling plate surface is typically a smooth metal material with a thickness of only 1mm. The contact point between the discharge gun tip and the coupling plate is small, resulting in insufficient friction. Even slight carelessness or hand tremors can easily cause the gun tip to slip off the coupling plate, leading to inaccurate discharge points, test failure, and potentially even damage to the device under test or the coupling plate surface; Low efficiency: To ensure consistent discharge positions each time, the tester needs to concentrate intensely, repeatedly aiming and positioning, increasing testing time and labor costs; Safety hazards: Accidental slippage of the gun tip can pose safety risks, such as damage to expensive testing equipment or personal injury. Therefore, we provide an anti-slip coupling plate clamp for electrostatic discharge testing to solve these problems. Utility Model Content

[0004] (a) Technical problems to be solved The purpose of this invention is to provide an anti-slip coupling plate clamp for electrostatic discharge testing to solve the problems of easy slippage, low efficiency and safety hazards in the prior art.

[0005] (II) Technical Solution This utility model is achieved through the following technical solution: an anti-slip coupling plate clamp for electrostatic discharge testing, comprising a U-shaped body, a conical positioning hole on the outer surface of the U-shaped body, a fixing mechanism inside the U-shaped body, the fixing mechanism comprising a limiting slide rod, the outer surface of the limiting slide rod being slidably connected to the U-shaped body, a driven plate being fixedly connected to one end of the limiting slide rod, and a silicone pad being fixedly connected to the outer surface of the driven plate; The inner wall of the U-shaped body is rotatably connected to a driven plate, and the inner wall of the U-shaped body is threadedly connected to a plastic screw. One end of the plastic screw is rotatably connected to the driven plate.

[0006] Preferably, a connecting rod is fixedly connected to the outer surface of the driven plate, and the outer surface of the connecting rod is slidably connected to the U-shaped body. By pushing the driven plate, the connecting rod can be driven to move synchronously.

[0007] Preferably, the top surface of the driven disk is hinged with a linkage arm, and the end of the linkage arm away from the driven disk is hinged to the connecting rod. By setting two linkage arms, when one connecting rod is pushed to move, the other connecting rod can be driven to move synchronously.

[0008] Preferably, a locking mechanism is provided on the outside of the U-shaped body. The locking mechanism includes an adjusting turntable, the outer surface of which is fixedly connected to a plastic screw. By adjusting the setting of the turntable, it is convenient to turn the plastic screw to rotate.

[0009] Preferably, a locking rod is slidably connected to the inner wall of the adjusting turntable, and a limiting hole adapted to the locking rod is opened on the outer surface of the U-shaped body. By inserting the locking rod into the limiting hole, the adjusting turntable can be effectively locked.

[0010] Preferably, a baffle is fixedly connected to the outer surface of the locking rod, and the outer surface of the baffle is slidably connected to the adjusting turntable. The locking rod effectively fixes the baffle.

[0011] Preferably, a support spring is sleeved on the outer surface of the locking rod. The two ends of the support spring are fixedly connected to the adjusting turntable and the baffle, respectively. When the locking rod is pulled to disengage from the limiting hole, the support spring can be squeezed and deformed simultaneously by the baffle.

[0012] This invention provides an anti-slip coupling plate clamp for electrostatic discharge testing, which has the following beneficial effects: This anti-slip coupling plate clamp for electrostatic discharge testing achieves extremely strong fixation stability through the combination of a U-shaped body, fixing mechanism, and conical positioning holes. This prevents the gun head from slipping and effectively resists discharge impact. Simultaneously, the entire assembly uses insulating material to ensure no metal parts are involved, avoiding interference from additional conductive paths on the electric field distribution and ensuring accurate test data. The plastic screw pressure is finely adjustable, adapting not only to 1mm standard coupling plates but also to different thicknesses, making it widely applicable. Its simple structural design features low processing cost, light weight, and small size, making it easy to carry and install on-site. Furthermore, the addition of a silicone pad disperses pressure, preventing damage to thin coupling plates. Combined with the polished conical positioning holes, this effectively protects the electrostatic gun head and significantly reduces equipment wear.

[0013] The anti-slip coupling plate clamp for electrostatic discharge testing achieves locking of the silicone pad through the coordinated arrangement of components in the fixing mechanism. This makes the silicone pad more reliably and firmly clamped to the coupling plate. This design significantly enhances the stability during the test process, ensures the consistency of the discharge current path, and avoids problems such as distorted test results or poor repeatability caused by loosening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the fixing mechanism of this utility model; Figure 3 This is a three-dimensional structural diagram of the linkage arm of this utility model; Figure 4 This utility model Figure 2 A schematic diagram of the three-dimensional structure at point A in the middle.

[0015] [Explanation of Key Component Symbols] 1. U-shaped body; 2. Conical positioning hole; 3. Fixing mechanism; 301. Limiting slide bar; 302. Driven plate; 303. Silicone pad; 304. Driven disc; 305. Plastic screw; 306. Connecting rod; 307. Linkage arm; 4. Locking mechanism; 401. Adjusting turntable; 402. Locking rod; 403. Limiting hole; 404. Stop plate; 405. Support spring. Detailed Implementation

[0016] This utility model provides an anti-slip coupling plate clamp for electrostatic discharge testing.

[0017] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes a U-shaped body 1, with a conical positioning hole 2 on the outer surface of the U-shaped body 1. The U-shaped body 1 is made of anti-static, high-strength insulating plastic to avoid conductive interference with electrostatic discharge testing. Its opening is designed to be compatible with common coupling plates and to allow for adjustment, ensuring both clamping stability and preventing damage to the thin coupling plate. The depth of the opening ensures structural stability after the coupling plate is inserted, preventing the fixture from tipping over due to an insufficiently shallow opening. The taper of the conical positioning hole 2 is compatible with the conical structure of common electrostatic gun heads, ensuring no shaking after the gun head is inserted. The inner wall of the conical positioning hole 2 is polished to reduce the insertion resistance of the gun head and prevent scratching the surface of the gun head.

[0018] The U-shaped main body 1 is internally equipped with a fixing mechanism 3, which includes a limiting slide rod 301. The outer surface of the limiting slide rod 301 is slidably connected to the U-shaped main body 1. One end of the limiting slide rod 301 is fixedly connected to a driven plate 302. The outer surface of the driven plate 302 is fixedly connected to a silicone pad 303. All components in the fixing mechanism 3 are made of insulating materials to avoid affecting the discharge test results. The silicone pad 303 increases the contact area with the coupling plate, avoids excessive local pressure that could cause deformation of the coupling plate, and enhances friction.

[0019] The inner wall of the U-shaped body 1 is rotatably connected to a driven plate 304, and the inner wall of the U-shaped body 1 is threadedly connected to a plastic screw 305. One end of the plastic screw 305 is rotatably connected to the driven plate 302. By turning the plastic screw 305, the driven plate 302 connected to it can be driven to move in the U-shaped body 1.

[0020] A connecting rod 306 is fixedly connected to the outer surface of the driven plate 302. The outer surface of the connecting rod 306 is slidably connected to the U-shaped body 1. The U-shaped body 1 effectively limits the connecting rod 306, making it more stable when sliding within the U-shaped body 1. A linkage arm 307 is hinged to the top surface of the driven plate 304. The end of the linkage arm 307 away from the driven plate 304 is hinged to the connecting rod 306. With the two linkage arms 307, when one connecting rod 306 is pushed to move, the other connecting rod 306 can move synchronously.

[0021] Please refer to it again. Figure 1 , Figure 2 and Figure 4 The U-shaped main body 1 is provided with a locking mechanism 4 on its exterior. The locking mechanism 4 includes an adjusting turntable 401. The outer surface of the adjusting turntable 401 is fixedly connected to the plastic screw 305. By adjusting the setting of the turntable 401, it is convenient to turn the plastic screw 305 to rotate. The inner wall of the adjusting turntable 401 is slidably connected to a locking rod 402. The outer surface of the U-shaped main body 1 is provided with a limiting hole 403 that matches the locking rod 402. By inserting the locking rod 402 into the limiting hole 403, the adjusting turntable 401 can be effectively locked, so that the plastic screw 305 on the surface of the adjusting turntable 401 cannot be rotated again.

[0022] A retaining plate 404 is fixedly connected to the outer surface of the locking rod 402. The outer surface of the retaining plate 404 is slidably connected to the adjusting turntable 401. A support spring 405 is sleeved on the outer surface of the locking rod 402. The two ends of the support spring 405 are fixedly connected to the adjusting turntable 401 and the retaining plate 404, respectively. An insulating skin is provided on the outer surface of the support spring 405. Through the resilience of the support spring 405 and the synergistic effect of the retaining plate 404, the locking rod 402 can be inserted into the limiting hole 403 more securely.

[0023] The structural diagrams of the components shown in the attached figures are exemplary. The specific implementation should be adapted and optimized by considering the functional requirements, assembly conditions and process limitations in the actual application scenario, and adjusting the structural parameters, size specifications and connection methods accordingly.

[0024] In use, this invention is as follows: First, align the opening of the U-shaped body 1 with the edge of the coupling plate. Then, slowly push the U-shaped body 1 horizontally until the coupling plate is fully inserted into the opening of the U-shaped body 1. Next, rotate the adjusting turntable 401 to drive the plastic screw 305 to rotate synchronously. During the rotation of the plastic screw 305, a driven plate 302 will simultaneously move within the U-shaped body 1. Simultaneously, combined with the coordinated linkage of the driven plate 304, connecting rod 306, and linkage arm 307, another silicone pad 303 can be driven to move synchronously within the U-shaped body 1, effectively bringing the two silicone pads 303 closer together. The coupling plate is fixed and clamped. Then, the discharge gun tip of the electrostatic gun is aligned with the conical positioning hole 2 at the front end of the U-shaped body 1 and slowly inserted vertically to the bottom of the hole before subsequent discharge testing can be performed. Next, by inserting the locking rod 402 into the limiting hole 403 and cooperating with the elasticity of the support spring 405, the plastic screw 305 on the surface of the adjusting turntable 401 can be locked securely, making the silicone pad 303 more reliable and firm in clamping and fixing the coupling plate. This significantly enhances the stability during the test process, ensures the consistency of the discharge current path, and avoids the problem of test result distortion or poor repeatability caused by loosening.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A non-slip coupling plate clamp for electrostatic discharge testing, comprising a U-shaped body (1), characterized in that: The outer surface of the U-shaped body (1) is provided with a conical positioning hole (2), and a fixing mechanism (3) is provided inside the U-shaped body (1). The fixing mechanism (3) includes a limiting slide rod (301). The outer surface of the limiting slide rod (301) is slidably connected to the U-shaped body (1). One end of the limiting slide rod (301) is fixedly connected to a driven plate (302), and the outer surface of the driven plate (302) is fixedly connected to a silicone pad (303). The inner wall of the U-shaped body (1) is rotatably connected to a driven plate (304), and the inner wall of the U-shaped body (1) is threadedly connected to a plastic screw (305). One end of the plastic screw (305) is rotatably connected to the driven plate (302).

2. The anti-slip coupling plate fixture for electrostatic discharge testing according to claim 1, characterized in that: A connecting rod (306) is fixedly connected to the outer surface of the driven plate (302), and the outer surface of the connecting rod (306) is slidably connected to the U-shaped body (1).

3. The anti-slip coupling plate fixture for electrostatic discharge testing according to claim 2, characterized in that: The top surface of the driven disk (304) is hinged with a linkage arm (307), and the end of the linkage arm (307) away from the driven disk (304) is hinged to the connecting rod (306).

4. The anti-slip coupling plate fixture for electrostatic discharge testing according to claim 1, characterized in that: The U-shaped body (1) is provided with a locking mechanism (4) on its exterior. The locking mechanism (4) includes an adjusting turntable (401), and the outer surface of the adjusting turntable (401) is fixedly connected to a plastic screw (305).

5. The anti-slip coupling plate fixture for electrostatic discharge testing according to claim 4, characterized in that: The inner wall of the adjusting turntable (401) is slidably connected to a locking rod (402), and the outer surface of the U-shaped body (1) is provided with a limiting hole (403) that matches the locking rod (402).

6. The anti-slip coupling plate fixture for electrostatic discharge testing according to claim 5, characterized in that: A baffle (404) is fixedly connected to the outer surface of the locking rod (402), and the outer surface of the baffle (404) is slidably connected to the adjusting turntable (401).

7. The anti-slip coupling plate fixture for electrostatic discharge testing according to claim 5, characterized in that: A support spring (405) is sleeved on the outer surface of the locking rod (402), and the two ends of the support spring (405) are fixedly connected to the adjusting turntable (401) and the baffle (404) respectively.

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