A capacitor voltage withstanding test device

Abstract

This application discloses a capacitor withstand voltage testing device, belonging to the field of capacitor testing technology. It includes a testing platform with a support fixed to its top. A placement groove is formed on the top of the support for placing capacitors, and a testing plate is installed on the bottom wall of the placement groove. A protective mechanism is disposed on the top of the testing platform to protect the capacitors during testing. This application utilizes a protective mechanism, which, in conjunction with a fixing mechanism, ensures stable fixation of the capacitors, effectively preventing poor contact or positional displacement caused by capacitor movement during testing, thus guaranteeing testing stability. The transparent plate of the protective mechanism forms a reliable isolation barrier, isolating the capacitors during testing from the outside environment. The choice of transparent material achieves isolation protection without affecting the operator's observation of the testing status, physically preventing the possibility of accidental contact with live capacitors and improving operational safety.

Description

Technical Field

[0001] This application relates to the field of capacitor testing technology, and more specifically, to a capacitor withstand voltage testing device. Background Technology

[0002] A capacitor, often simply called a capacitor, is a passive electronic component that can store electrical charge. Its basic structure is very simple, consisting mainly of two metal electrodes close to each other and an insulating dielectric layer in between. It plays an irreplaceable role in energy storage, filtering, coupling, tuning, and timing.

[0003] The withstand voltage test is to ensure that the capacitor will not break down at its rated voltage (nominal maximum operating voltage) or even a higher test voltage. The main equipment for conducting the withstand voltage test of a capacitor is a withstand voltage tester, also known as an electrical strength tester.

[0004] However, capacitor withstand voltage testing often involves placing the capacitor directly on the testing device to apply voltage. During the test, the capacitor is energized, and existing devices lack effective protective isolation structures. This poses a safety hazard to workers who may accidentally touch the energized capacitor during operation or observation, potentially causing electric shock accidents.

[0005] In view of this, we propose a capacitor withstand voltage testing device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this application proposes a capacitor withstand voltage testing device.

[0007] This application provides a capacitor withstand voltage testing device, comprising: A testing table, wherein a support is fixedly connected to the top of the testing table, and a placement groove is opened on the top of the support for placing capacitors, and a testing plate is installed on the bottom wall of the placement groove; A protective mechanism, located on top of the testing platform, is used to protect the capacitors during testing. A fixing mechanism, installed on the outer wall of the testing platform, is used to fix the capacitor components during testing; The protective mechanism includes a first transparent plate fixed to the top of the testing platform, and a second transparent plate rotatably connected to the side wall of the first transparent plate; the fixing mechanism includes a first clamp and a second clamp that are slidably disposed, and the first clamp and the second clamp are driven by an external force to move toward the placement slot.

[0008] As an optional solution to the technical solution of this application, the fixing mechanism further includes a mounting frame fixed to the outer wall of the support member. The mounting frame is fixed to the outer wall of the support member by multiple bolts. Two limiting plates are fixed to the top of the mounting frame. Connecting pieces are slidably connected to the inner walls of the limiting plates. Both connecting pieces are installed with the side walls of the second clamp and the first clamp. A fixing frame is fixed to the outer wall of the connecting pieces. The fixing frame is L-shaped. Two rotating plates are rotatably connected inside the mounting frame. Mounting bolts are fixed to the side walls of the rotating plates. The mounting bolts are threaded to the middle of the fixing frame.

[0009] As an optional solution to the technical solution of this application, the protective mechanism further includes a metal sheet fixed to the side wall of the second transparent plate, a magnetic plate fixed to the side wall of the first transparent plate, the metal sheet and the magnetic plate being arranged along the same path and attracted to each other, a pressure sensor being installed inside the magnetic plate, and the pressure sensor being electrically connected to the detection plate through a detection stage.

[0010] As an optional solution to the technical solution of this application, the connecting piece is fixedly connected to a housing on its side wall, a spring is fixedly connected to the inner wall of the housing, a limit block is fixedly connected to the end of the spring, the limit block is slidably disposed on the inner wall of the housing, a positioning rod is fixedly connected to the side wall of the limit block, one end of the positioning rod is disposed through the housing, and the other ends of the two positioning rods are fixedly connected to the first clamp and the second clamp.

[0011] As an optional solution to the technical solution of this application, the second clamp has a guide groove inside, and the first clamp slides crosswise in the second clamp through the guide groove. The inner walls of the first clamp and the second clamp are arc structures.

[0012] As an optional solution to the technical solution of this application, the bottom wall of the fixed frame has two inner grooves, and the bottom of the fixed frame slides on the side wall of the mounting frame through the inner grooves.

[0013] As an optional solution to the technical solution of this application, a switch is installed on the outer wall of the testing platform, a connector is installed on the side wall of the testing platform, and a placement pad is fixed to the bottom of the testing platform.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: (1) This application adopts a protective mechanism, which can be used in conjunction with a fixing mechanism to achieve stable fixing of the capacitor, effectively avoiding poor contact or positional displacement caused by the shaking of the capacitor during the test, thus ensuring test stability. The transparent plate combination of the protective mechanism forms a reliable isolation protection, isolating the capacitor under test from the outside world. The choice of transparent material achieves isolation protection without affecting the staff's observation of the test status, thus physically blocking the possibility of staff accidentally touching the live capacitor and improving operational safety.

[0015] (2) This application ensures that the detection board will only start after the protective mechanism is fully closed through the triggering mechanism of the pressure sensor, which solves the safety hazard of the device starting by mistake when the protection is not done well and improves the safety of the test process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the capacitor withstand voltage testing device disclosed in a preferred embodiment of this application; Figure 2 This is a schematic diagram of the support structure of a capacitor withstand voltage testing device disclosed in a preferred embodiment of this application; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 This is a schematic diagram of the protective mechanism structure of a capacitor withstand voltage testing device disclosed in a preferred embodiment of this application; Figure 5 This is a schematic diagram of the fixing mechanism of a capacitor withstand voltage testing device disclosed in a preferred embodiment of this application.

[0017] The following are the labeling instructions in the diagram: 1. Testing platform; 11. Support component; 12. Placement slot; 13. Testing plate; 14. Switch; 15. Wiring connector; 16. Placement pad; 2. Protective mechanism; 21. First transparent plate; 22. Second transparent plate; 23. Metal sheet; 24. Magnetic plate; 25. Pressure sensor; 3. Fixing mechanism; 31. First clamp; 32. Second clamp; 321. Guide groove; 33. Mounting frame; 34. Limiting plate; 35. Connecting piece; 36. Fixing frame; 361. Inner groove; 37. Rotating plate; 38. Mounting bolt; 4. Housing; 41. Spring; 42. Limiting block; 43. Positioning rod; 100. Capacitor component. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings.

[0019] Reference Figures 1-5This application discloses a capacitor withstand voltage testing device, comprising a testing platform 1, a protective mechanism 2, and a fixing mechanism 3. A support member 11 is fixedly connected to the top of the testing platform 1. A placement groove 12 is formed on the top of the support member 11 for placing a capacitor 100. A testing plate 13 is installed on the bottom wall of the placement groove 12. The support member 11 is positioned on the top of the testing platform 1 to protect the capacitor 100 during testing. The support member 13 is also positioned on the outer wall of the testing platform 1 to fix the capacitor 100 during testing. The protective mechanism 2 includes a first transparent plate 21 fixed to the top of the testing platform 1, and a second transparent plate 22 rotatably connected to the side wall of the first transparent plate 21. The fixing mechanism 3 includes a first clamp 31 and a second clamp 32 that are slidably disposed. 32 is driven by external force to move towards the placement slot 12; the fixing mechanism 3 also includes a mounting frame 33 fixed to the outer wall of the support member 11. The mounting frame 33 is fixed to the outer wall of the support member 11 by multiple bolts. Two limiting plates 34 are fixed to the top of the mounting frame 33. Connecting pieces 35 are slidably connected to the inner wall of the limiting plates 34. Both connecting pieces 35 are installed on the side walls of the second clamp 32 and the first clamp 31. A fixing frame 36 is fixed to the outer wall of the connecting pieces 35. The fixing frame 36 is L-shaped. Two rotating plates 37 are rotatably connected inside the mounting frame 33. Mounting bolts 38 are fixed to the side walls of the rotating plates 37. The mounting bolts 38 are threaded to the middle of the fixing frame 36. Two inner grooves 361 are opened on the bottom wall of the fixing frame 36. The capacitor 100 slides on the side wall of the mounting frame 33 via the inner groove 361; a switch 14 is installed on the outer wall of the testing table 1, a connector 15 is installed on the side wall of the testing table 1, and a placement pad 16 is fixed to the bottom of the testing table 1; first, the capacitor 100 is placed into the placement groove 12 of the support 11 so that it contacts the testing plate 13, and the mounting bolt 38 is rotated. Because the mounting bolt 38 is threadedly connected to the fixing frame 36, and the fixing frame 36 slides on the side wall of the mounting frame 33 via the inner groove 361, while the connecting piece 35 slides on the inner wall of the limiting plate 34, the movement of the fixing frame 36 drives the connecting piece 35 to move, thereby causing the first clamp 31 and the second clamp 32 to move toward the placement groove 12, thereby achieving the limiting and fixing of the capacitor 100; close the second transparent plate 22. This allows the capacitor 100 to be protected during testing in conjunction with the first transparent plate 21. The device is activated by the switch 14, the wiring terminal 15 connects to the external testing circuit, and the placement pad 16 ensures the stability of the testing platform 1. This step, combined with the fixing mechanism 3, can stably fix the capacitor 100, effectively avoiding poor contact or positional displacement caused by the shaking of the capacitor 100 during the test, thus ensuring the stability of the test. The transparent plate combination of the protective mechanism 2 forms a reliable isolation protection, isolating the capacitor 100 during testing from the outside world. The choice of transparent material achieves isolation protection without affecting the staff's observation of the test status, physically blocking the possibility of staff accidentally touching the live capacitor 100, and improving operational safety.

[0020] Reference Figures 1-5The protective mechanism 2 also includes a metal sheet 23 fixed to the side wall of the second transparent plate 22. A magnetic plate 24 is fixed to the side wall of the first transparent plate 21. The metal sheet 23 and the magnetic plate 24 are arranged along the same path and are attracted to each other. A pressure sensor 25 is installed inside the magnetic plate 24. The pressure sensor 25 is electrically connected to the detection plate 13 through the detection platform 1. When the second transparent plate 22 is closed, the metal sheet 23 on the side wall of the second transparent plate 22 is magnetically attracted to the magnetic plate 24 on the side wall of the first transparent plate 21. At the same time, the pressure sensor 25 inside the magnetic plate 24 is squeezed. The pressure sensor 25 is electrically connected to the detection plate 13 through the detection platform 1, thereby triggering the detection plate 13 to start and apply voltage to the capacitor 100 for withstand voltage testing. This step ensures that the detection plate 13 can only start after the protective mechanism 2 is completely closed through the triggering mechanism of the pressure sensor 25. This solves the safety hazard of the device starting accidentally when the protection is not properly protected and improves the safety of the testing process.

[0021] Reference Figures 1-5 A housing 4 is fixedly connected to the side wall of the connecting piece 35. A spring 41 is fixedly connected to the inner wall of the housing 4. A limiting block 42 is fixedly connected to the end of the spring 41. The limiting block 42 is slidably disposed on the inner wall of the housing 4. A positioning rod 43 is fixedly connected to the side wall of the limiting block 42. One end of the positioning rod 43 is disposed through the housing 4. The other ends of the two positioning rods 43 are fixedly connected to the first clamp 31 and the second clamp 32. When fixing the capacitor 100, the spring 41 in the housing 4 generates elastic force, which pushes the limiting block 42 to slide on the inner wall of the housing 4. This causes the positioning rod 43 fixed to the limiting block 42 to push the first clamp 31 and the second clamp 32 closer to the capacitor 100. The continuous elastic force of the spring 41 makes the first clamp 31 and the second clamp 32 fit tightly against the capacitor 100. The elastic force of the spring 41 is transmitted to the clamp through the limiting block 42 and the positioning rod 43, so that the clamp adapts to fit the capacitor 100, reduces the fixing gap error, and ensures the fixing is firm.

[0022] Reference Figures 1-5 The second clamp 32 has a guide groove 321 inside, and the first clamp 31 slides crosswise in the second clamp 32 through the guide groove 321. The inner walls of the first clamp 31 and the second clamp 32 are arc-shaped. For capacitors 100 of different sizes, the first clamp 31 slides crosswise through the guide groove 321 inside the second clamp 32 to adjust the relative position of the two. The cross-sliding structure of the guide groove 321 in this step makes the clamp position adjustable, which solves the problem of poor adaptability of the traditional fixing mechanism 3 to capacitors of different specifications and improves the universality of the device for testing capacitors of different sizes.

[0023] In summary, when using the capacitor withstand voltage testing device disclosed in this application, firstly, the capacitor 100 is placed in the placement groove 12 of the support 11, so that it contacts the test plate 13. The mounting bolt 38 is rotated. Because the mounting bolt 38 is threadedly connected to the fixing frame 36, and the fixing frame 36 slides on the side wall of the mounting frame 33 through the inner groove 361, while the connecting piece 35 slides on the inner wall of the limiting plate 34, the movement of the fixing frame 36 drives the connecting piece 35 to move, thereby causing the first clamp 31 and the second clamp 32 to move towards the placement groove 12, thus achieving the limiting and fixing of the capacitor 100. The second transparent plate 22 is then closed, allowing it to cooperate with the first transparent plate 21 to protect the capacitor 100 during testing. The device is started via the switch 14, the wiring terminal 15 connects to the external testing circuit, the placement pad 16 ensures the stability of the test platform 1, and the second transparent plate is closed. 22. The metal sheet 23 on the side wall of the second transparent plate 22 is magnetically attracted to the magnetic plate 24 on the side wall of the first transparent plate 21. At the same time, the pressure sensor 25 inside the magnetic plate 24 is squeezed. The pressure sensor 25 is electrically connected to the detection plate 13 through the detection stage 1, thereby triggering the detection plate 13 to start and apply voltage to the capacitor 100 for withstand voltage test. When the capacitor 100 is fixed, the spring 41 inside the housing 4 generates elastic force, pushing the limiting block 42 to slide on the inner wall of the housing 4. This causes the positioning rod 43, which is fixed to the limiting block 42, to push the first clamp 31 and the second clamp 32 closer to the capacitor 100. The continuous elastic force of the spring 41 makes the first clamp 31 and the second clamp 32 fit tightly against the capacitor 100. For capacitors 100 of different sizes, the first clamp 31 slides crosswise through the guide groove 321 inside the second clamp 32 to adjust the relative position of the two.

Claims

1. A capacitor withstand voltage testing device, characterized in that, Include: The test station (1) has a support member (11) fixedly connected to the top of the test station (1). The support member (11) has a placement groove (12) on the top for placing a capacitor (100). The bottom wall of the placement groove (12) is equipped with a test plate (13). The protective mechanism (2) is set on the top of the test bench (1) to protect the capacitor (100) during the test. The fixing mechanism (3) is set on the outer wall of the test bench (1) and is used to fix the capacitor (100) during the test; The protective mechanism (2) includes a first transparent plate (21) fixed on the top of the testing table (1), and a second transparent plate (22) is rotatably connected to the side wall of the first transparent plate (21); the fixing mechanism (3) includes a first clamp (31) and a second clamp (32) that are slidably arranged, and the first clamp (31) and the second clamp (32) are driven by external force to move toward the placement slot (12).

2. The capacitor withstand voltage testing device according to claim 1, characterized in that: The fixing mechanism (3) further includes a mounting frame (33) fixed to the outer wall of the support member (11). The mounting frame (33) is fixed to the outer wall of the support member (11) by multiple bolts. Two limiting plates (34) are fixed to the top of the mounting frame (33). A connecting piece (35) is slidably connected to the inner wall of the limiting plate (34). Both connecting pieces (35) are installed on the side walls of the second clamp (32) and the first clamp (31). A fixing frame (36) is fixed to the outer wall of the connecting piece (35). The fixing frame (36) is L-shaped. Two rotating plates (37) are rotatably connected inside the mounting frame (33). A mounting bolt (38) is fixed to the side wall of the rotating plate (37). The mounting bolt (38) is threaded to the middle of the fixing frame (36).

3. The capacitor withstand voltage testing device according to claim 1, characterized in that: The protective mechanism (2) further includes a metal sheet (23) fixed to the side wall of the second transparent plate (22). A magnetic plate (24) is fixed to the side wall of the first transparent plate (21). The metal sheet (23) and the magnetic plate (24) are arranged along the same path. The metal sheet (23) and the magnetic plate (24) are attracted to each other. A pressure sensor (25) is installed inside the magnetic plate (24). The pressure sensor (25) is electrically connected to the detection plate (13) through the detection stage (1).

4. The capacitor withstand voltage testing device according to claim 2, characterized in that: The connecting piece (35) is fixed to the side wall of the housing (4), and the inner wall of the housing (4) is fixed to the spring (41). The end of the spring (41) is fixed to the limit block (42). The limit block (42) is slidably disposed on the inner wall of the housing (4). The side wall of the limit block (42) is fixed to the positioning rod (43). One end of the positioning rod (43) is disposed through the housing (4), and the other ends of the two positioning rods (43) are fixedly connected to the first clamp (31) and the second clamp (32).

5. The capacitor withstand voltage testing device according to claim 1, characterized in that: The second clamp (32) has a guide groove (321) inside, and the first clamp (31) slides crosswise in the second clamp (32) through the guide groove (321). The inner walls of the first clamp (31) and the second clamp (32) are arc structures.

6. The capacitor withstand voltage testing device according to claim 2, characterized in that: The bottom wall of the fixed frame (36) has two inner grooves (361), and the bottom of the fixed frame (36) slides on the side wall of the mounting frame (33) through the inner grooves (361).

7. The capacitor withstand voltage testing device according to claim 1, characterized in that: The outer wall of the testing platform (1) is equipped with an on / off switch (14), the side wall of the testing platform (1) is equipped with a connector (15), and the bottom of the testing platform (1) is fixed with a placement pad (16).

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