A voltage withstanding test device for aluminum electrolytic capacitor

Abstract

The utility model provides a kind of withstand voltage test equipment of aluminum electrolytic capacitor, belong to electronic measurement and testing technical field, including shell, the inside installation of shell is used for improving the test component of heat dissipation efficiency, the top of shell is equipped with the protection component for preventing capacitor from exploding and causing harm.

Description

Technical Field

[0001] This utility model relates to the field of electronic measurement and testing technology, and more specifically, to a withstand voltage testing device for aluminum electrolytic capacitors. Background Technology

[0002] The withstand voltage testing equipment for aluminum electrolytic capacitors is a specialized device used to evaluate the insulation performance and structural reliability of capacitors under rated voltage and overvoltage conditions. It can simulate extreme conditions and test capacitors to prevent them from exploding or causing fires if used directly.

[0003] A search revealed that Chinese Patent Publication No. CN207914175U discloses "a novel testing device for aluminum electrolytic capacitors, comprising a column, a workbench, a defective product box, and a qualified product box. The upper end of the column is fixedly connected to the workbench. The defective product box is located at one end of the workbench, and the qualified product box is located on one side of the defective product box. A detection cylinder frame is located on one side of the qualified product box, and a detection cylinder is mounted on the detection cylinder frame. A guide rail is located on the inner side of the detection cylinder frame, and a stopper is located at the upper end of the guide rail. A detection plate is located at the lower end of the detection cylinder. An infrared sensor is located on one side of the detection cylinder frame, and a capacitance detector is located on one side of the detection cylinder frame. This novel testing device for aluminum electrolytic capacitors can sort qualified and defective products during the testing process, effectively reducing labor intensity. The device has a high degree of automation and can effectively improve the testing efficiency of the capacitors." However, it still has the following drawbacks: (1) The equipment does not have a cooling device. During the testing process, the testing equipment will also generate heat. When used for a long time, it may cause the testing equipment to heat up rapidly, which will not only affect the test data, but may also directly cause damage to the equipment. (2) The equipment does not have protective functions. Smaller capacitors usually do not produce strong explosions, but for larger capacitors, if an explosion occurs during the testing process due to quality problems, it is very likely to cause serious injury to the testing personnel. Therefore, a withstand voltage testing device for aluminum electrolytic capacitors is proposed. Utility Model Content

[0004] The purpose of this invention is to address the problems of existing equipment that lacks a cooling device, generates heat during testing, and may experience rapid temperature increases with prolonged use, affecting test data and potentially damaging the equipment. Furthermore, the equipment lacks protective features; while smaller capacitors typically do not explode violently, larger capacitors, if exploding due to quality issues during testing, could cause serious injury to testing personnel. This invention provides a withstand voltage testing device for aluminum electrolytic capacitors to solve the problems mentioned in the background.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: The present invention is as follows: a withstand voltage testing device for aluminum electrolytic capacitors, comprising a housing, wherein a testing component for improving heat dissipation efficiency is installed inside the housing, and a protective component for preventing capacitor explosion and damage is installed on the top of the housing; The testing assembly includes a capacitor tester body installed inside a housing. Two wire clamps are installed on the top of the housing, and the clamping surfaces of both wire clamps are provided with serrated surfaces, totaling four serrated surfaces. A thermoelectric cooler is installed on one side of the capacitor tester body, and the heat dissipation surface of the thermoelectric cooler is coated with thermal grease. A heat dissipation hole is opened on one side of the housing, and a waterproof cover is welded to one side of the heat dissipation hole. A fan is installed on one side of the housing.

[0006] As a preferred technical solution of this utility model, a servo motor is installed on one side of the housing, and a first rotating rod is installed at the output end of the servo motor. A first bevel gear is fixedly installed on the periphery of the first rotating rod. A second rotating rod, a third rotating rod, and a lifting rod are rotatably installed inside the housing. There are two third rotating rods and four lifting rods. A second bevel gear is fixedly installed on the periphery of the second rotating rod, and the second bevel gear meshes with the first bevel gear. A third bevel gear is fixedly installed at both ends of the second rotating rod. A fourth bevel gear is fixedly installed on the periphery of each of the four lifting rods, and two of the third bevel gears mesh with two of the fourth bevel gears. A fifth bevel gear is fixedly installed at both ends of each of the two third rotating rods, and the four fifth bevel gears mesh with four of the fourth bevel gears. A sleeve is threadedly connected to the periphery of each of the four lifting rods, and a baffle is welded to the top of each of the four sleeves.

[0007] As a preferred technical solution of this utility model, the peripheral side of the connector is provided with a first buffer pad and a second buffer pad. The first buffer pad is red and the second buffer pad is black. Both the first buffer pad and the second buffer pad are made of rubber.

[0008] As a preferred embodiment of this invention, a protrusion is welded to one side of the housing, and a vibration motor is installed inside the protrusion.

[0009] As a preferred technical solution of this utility model, an LED light strip is installed on the inner top of the baffle, and there are two LED light strips, with several LED lights installed at the bottom of each of the two LED light strips.

[0010] As a preferred technical solution of this utility model, an observation port is installed on one side of the baffle. The observation port is made of tempered glass, and an adhesive is provided at the connection between the observation port and the baffle. The adhesive is made of silicone structural adhesive.

[0011] As a preferred technical solution of this utility model, the bottom of the shell is provided with an anti-slip pad, and the number of the anti-slip pads is two, both of which are made of rubber.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The test components are designed so that the positive and negative terminals of the capacitor are connected by two clamps during use. The serrated surface can improve the stability of the clamping. The thermoelectric cooler can cool the capacitor tester body. The thermal grease can improve the heat dissipation efficiency of the thermoelectric cooler. The airflow can accelerate the air circulation and further improve the heat dissipation efficiency of the thermoelectric cooler. The waterproof cover can reduce the entry of water and dust into the heat dissipation holes and prevent water and dust from affecting the equipment. 2. With the protective components in place, when in use, the servo motor is activated, which drives the first rotating rod to rotate. The first rotating rod drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate. The second bevel gear drives the second rotating rod to rotate, which in turn drives two third bevel gears to rotate. The two third bevel gears drive two of the fourth bevel gears to rotate, which in turn drive two fifth bevel gears to rotate. The two fifth bevel gears drive two third rotating rods to rotate, which in turn drive the other two fifth bevel gears to rotate. The other two fifth bevel gears drive the other two fourth bevel gears to rotate, and the four fourth bevel gears drive four lifting rods to rotate. The four lifting rods drive four sleeves connected to them to descend, and the four sleeves drive the baffle to descend, thus lowering the position of the baffle to provide protection. Attached Figure Description

[0013] Figure 1 A schematic diagram of the withstand voltage testing equipment for aluminum electrolytic capacitors provided by this utility model; Figure 2 A schematic diagram of the anti-slip pad structure for the withstand voltage testing equipment of aluminum electrolytic capacitors provided by this utility model; Figure 3A front view of the withstand voltage testing equipment for aluminum electrolytic capacitors provided by this utility model; Figure 4 The withstand voltage testing equipment for aluminum electrolytic capacitors provided by this utility model Figure 2 A schematic diagram of the three-dimensional cross-sectional structure at point AA; Figure 5 The withstand voltage testing equipment for aluminum electrolytic capacitors provided by this utility model Figure 4 Enlarged structural diagram at point A; Figure 6 Left view of the withstand voltage testing equipment for aluminum electrolytic capacitors provided by this utility model; Figure 7 The withstand voltage testing equipment for aluminum electrolytic capacitors provided by this utility model Figure 6 A schematic diagram of the planar cross-sectional structure at point BB; Figure 8 The withstand voltage testing equipment for aluminum electrolytic capacitors provided by this utility model Figure 6 A schematic diagram of the three-dimensional cross-sectional structure at point BB; The diagram shows: 1. Housing; 2. Test assembly; 3. Protective assembly; 201. Capacitor tester body; 202. Wiring clamp; 203. Serrated surface; 204. Semiconductor cooling chip; 205. Thermal grease; 206. Heat dissipation hole; 207. Waterproof cover; 208. Fan; 301. Servo motor; 302. First rotating rod; 303. First bevel gear; 304. Second rotating rod; 305. Third rotating rod; 306. Lifting rod; 307. Second bevel gear; 308. Third bevel gear; 309. Fourth bevel gear; 310. Fifth bevel gear; 311. Sleeve; 312. Baffle; 4. First buffer pad; 5. Second buffer pad; 6. Protrusion; 7. Vibration motor; 8. LED light strip; 9. LED light; 10. Observation port; 11. Adhesive; 12. Anti-slip pad. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0015] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0016] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] like Figure 1 As shown, this embodiment proposes a withstand voltage testing device for aluminum electrolytic capacitors, including a housing 1, a testing component 2 for improving heat dissipation efficiency installed inside the housing 1, and a protective component 3 for preventing the capacitor from exploding and causing damage. like Figure 7 and Figure 8 As shown, the test assembly 2 includes a capacitor tester body 201 installed inside the housing 1. Two terminal clamps 202 are mounted on the top of the housing 1. Each terminal clamp 202 has a serrated surface 203 on its clamping surface, totaling four serrated surfaces 203, used to clamp the capacitor leads and improve clamping stability. A thermoelectric cooler 204 is mounted on one side of the capacitor tester body 201. The heat dissipation surface of the thermoelectric cooler 204 is coated with thermal grease 205. A heat dissipation hole 206 is provided on one side of the housing 1 for ventilation, accelerating airflow and heat dissipation. A waterproof cover 207 is welded to one side of the hole 206, and a fan 208 is installed on one side of the housing 1. During use, the positive and negative terminals of the capacitor are connected through two terminal clamps 202. The serrated surface 203 can improve the stability of the clamping. The thermoelectric cooler 204 can cool the capacitor tester body 201. The thermal grease 205 can improve the heat dissipation efficiency of the thermoelectric cooler 204. The fan accelerates the air circulation, further improving the heat dissipation efficiency of the thermoelectric cooler 204. The waterproof cover 207 can reduce the entry of water and dust into the heat dissipation hole 206, preventing water and dust from affecting the equipment.

[0019] like Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, a servo motor 301 is mounted on one side of the housing 1. A first rotating rod 302 is mounted on the output end of the servo motor 301. A first bevel gear 303 is fixedly mounted on the periphery of the first rotating rod 302. A second rotating rod 304, a third rotating rod 305, and a lifting rod 306 are rotatably mounted inside the housing 1. There are two third rotating rods 305 and four lifting rods 306. A second bevel gear 307 is fixedly mounted on the periphery of the second rotating rod 304. The second bevel gear 307 meshes with the first bevel gear 303. Both ends of 04 are fixedly installed with third bevel gears 308. The periphery of each of the four lifting rods 306 is fixedly installed with fourth bevel gears 309. Two third bevel gears 308 mesh with two fourth bevel gears 309. Both ends of the two third rotating rods 305 are fixedly installed with fifth bevel gears 310. Four fifth bevel gears 310 mesh with four fourth bevel gears 309. The periphery of each of the four lifting rods 306 is threaded with sleeves 311 for threaded connection to the lifting rods 306 and for driving the baffle 312 to rise and fall. The tops of the four sleeves 311 are welded... A baffle 312 is provided for protection, preventing injury to testing personnel from a capacitor explosion. During operation, the servo motor 301 is activated, which drives the first rotating rod 302 to rotate. The first rotating rod 302 drives the first bevel gear 303 to rotate, which in turn drives the second bevel gear 307 to rotate. The second bevel gear 307 drives the second rotating rod 304 to rotate, which in turn drives two third bevel gears 308 to rotate. The two third bevel gears 308 then drive two of the fourth bevel gears 309 to rotate. Gear 309 drives two fifth bevel gears 310 to rotate, the two fifth bevel gears 310 drive two third rotating rods 305 to rotate, the two third rotating rods 305 drive another two fifth bevel gears 310 to rotate, the other two fifth bevel gears 310 drive another two fourth bevel gears 309 to rotate, the four fourth bevel gears 309 drive four lifting rods 306 to rotate, the four lifting rods 306 drive four sleeves 311 connected to them to descend, the four sleeves 311 drive the baffle 312 to descend, which can lower the position of the baffle 312 to provide protection.

[0020] like Figure 8 As shown, the terminal clamp 202 is provided with a first buffer pad 4 and a second buffer pad 5 around its periphery. The first buffer pad 4 is red and the second buffer pad 5 is black. Both the first buffer pad 4 and the second buffer pad 5 are made of rubber. When in use, the positive and negative terminals are distinguished by the first buffer pad 4 and the second buffer pad 5 to prevent accidents caused by reverse connection of the capacitor's positive and negative terminals.

[0021] like Figure 2As shown, a protrusion 6 is welded to one side of the housing 1. A vibration motor 7 is installed inside the protrusion 6. During use, the vibration motor 7 can be used to test the capacitor in a vibration environment, simulating the transportation or use environment, and to test the quality of the capacitor in a vibration environment.

[0022] like Figure 2 As shown, an LED light strip 8 is installed on the inner top of the baffle 312. There are two LED light strips 8, and several LED lights 9 are installed at the bottom of each of the two LED light strips 8. When in use, the LED lights 9 can provide illumination in dim environments to assist in detection.

[0023] like Figure 2 As shown, an observation port 10 is installed on one side of the baffle 312. The observation port 10 is made of tempered glass. An adhesive 11 is provided at the connection between the observation port 10 and the baffle 312. The adhesive 11 is made of silicone structural adhesive. When in use, the capacitor can be easily observed through the observation port 10 after the baffle 312 is lowered.

[0024] like Figure 2 As shown, the bottom of the housing 1 is provided with two anti-slip pads 12. Both anti-slip pads 12 are made of rubber. During use, the anti-slip pads 12 can prevent the equipment from moving due to vibration or external interference.

[0025] Specifically, when using this aluminum electrolytic capacitor withstand voltage testing equipment: the positive and negative terminals of the capacitor are connected via two terminal clamps 202; the serrated surface 203 improves the stability of the clamping; the thermoelectric cooler 204 cools the capacitor tester body 201; the thermal grease 205 improves the heat dissipation efficiency of the thermoelectric cooler 204; the airflow accelerates air circulation, further improving the heat dissipation efficiency of the thermoelectric cooler 204; and the waterproof cover 207 reduces the entry of water and dust into the heat dissipation holes 206, preventing water and dust from affecting the equipment (e.g., ...). Figure 7 and Figure 8(As shown) By starting the servo motor 301, the servo motor 301 drives the first rotating rod 302 to rotate, the first rotating rod 302 drives the first bevel gear 303 to rotate, the first bevel gear 303 drives the second bevel gear 307 to rotate, the second bevel gear 307 drives the second rotating rod 304 to rotate, the second rotating rod 304 drives the two third bevel gears 308 to rotate, the two third bevel gears 308 drive the two fourth bevel gears 309 to rotate, the two fourth bevel gears 309 drive the two fifth bevel gears 310 to rotate, the two fifth bevel gears 310 drive the two third rotating rods 305 to rotate, the two third rotating rods 305 drive the other two fifth bevel gears 310 to rotate, the other two fifth bevel gears 310 drive the other two fourth bevel gears 309 to rotate, the four fourth bevel gears 309 drive the four lifting rods 306 to rotate, the four lifting rods 306 drive the four sleeves 311 connected to them to descend, the four sleeves 311 drive the baffle 312 to descend, which can lower the position of the baffle 312 to provide protection (e.g. Figure 4 , Figure 5 , Figure 7 and Figure 8 (As shown).

[0026] All technical features in this embodiment can be freely combined according to actual needs.

[0027] 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 technical solution are within the protection scope of this utility model.

Claims

1. A withstand voltage testing device for aluminum electrolytic capacitors, comprising a housing (1), characterized in that, The housing (1) is equipped with a test component (2) for improving heat dissipation efficiency, and the top of the housing (1) is equipped with a protective component (3) for preventing the capacitor from exploding and causing damage. The test assembly (2) includes a capacitor tester body (201) installed inside the housing (1). A wire clamp (202) is installed on the top of the housing (1). There are two wire clamps (202). The clamping surfaces of the two wire clamps (202) are provided with serrated surfaces (203). There are four serrated surfaces (203). A semiconductor cooling chip (204) is installed on one side of the capacitor tester body (201). The heat dissipation surface of the semiconductor cooling chip (204) is coated with thermal grease (205). A heat dissipation hole (206) is opened on one side of the housing (1). A waterproof cover (207) is welded to one side of the heat dissipation hole (206). A fan (208) is installed on one side of the housing (1).

2. The withstand voltage testing equipment for aluminum electrolytic capacitors according to claim 1, characterized in that, A servo motor (301) is installed on one side of the housing (1). A first rotating rod (302) is installed at the output end of the servo motor (301). A first bevel gear (303) is fixedly installed on the periphery of the first rotating rod (302). A second rotating rod (304), a third rotating rod (305), and a lifting rod (306) are rotatably installed inside the housing (1). There are two third rotating rods (305) and four lifting rods (306). A second bevel gear (307) is fixedly installed on the periphery of the second rotating rod (304). The second bevel gear (307) and the first bevel gear (303) are connected. The two third bevel gears (308) are fixedly installed at both ends of the second rotating rod (304), and the four lifting rods (306) are fixedly installed with fourth bevel gears (309). The two third bevel gears (308) mesh with the two fourth bevel gears (309). The two third rotating rods (305) are fixedly installed with fifth bevel gears (310) at both ends, and the four fifth bevel gears (310) mesh with the four fourth bevel gears (309). The four lifting rods (306) are threadedly connected with sleeves (311), and the tops of the four sleeves (311) are welded with baffles (312).

3. The withstand voltage testing equipment for aluminum electrolytic capacitors according to claim 1, characterized in that, The two connector clamps (202) are provided with a first buffer pad (4) and a second buffer pad (5) on their periphery. The first buffer pad (4) is red and the second buffer pad (5) is black. Both the first buffer pad (4) and the second buffer pad (5) are made of rubber.

4. The withstand voltage testing equipment for aluminum electrolytic capacitors according to claim 1, characterized in that, A protrusion (6) is welded to one side of the housing (1), and a vibration motor (7) is installed inside the protrusion (6).

5. The withstand voltage testing equipment for aluminum electrolytic capacitors according to claim 2, characterized in that, The inner top of the baffle (312) is equipped with an LED light strip (8), and there are two LED light strips (8). Several LED lights (9) are installed at the bottom of each of the two LED light strips (8).

6. The withstand voltage testing equipment for aluminum electrolytic capacitors according to claim 2, characterized in that, An observation port (10) is installed on one side of the baffle (312). The observation port (10) is made of tempered glass. An adhesive (11) is provided at the connection between the observation port (10) and the baffle (312). The adhesive (11) is made of silicone structural adhesive.

7. The withstand voltage testing equipment for aluminum electrolytic capacitors according to claim 1, characterized in that, The bottom of the housing (1) is provided with an anti-slip pad (12), and there are two anti-slip pads (12), both of which are made of rubber.

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