Adjustable withstand voltage tester

Abstract

The utility model relates to the technical field of withstand voltage testers, and discloses an adjustable withstand voltage tester, which comprises a main body, the lower part of the front side of the main body is fixedly connected with a lead, the other end of the lead is fixedly connected with a telescopic column, the other end of the telescopic column is provided with a covered channel, one end of the covered channel is fixedly connected with a spring, and the other end of the covered channel is fixedly connected with a spring. The other end of the spring is fixedly connected with a probe, the outer wall of the probe is in sliding connection with the inner wall of the covered channel, the outer wall of the middle of the telescopic column is fixedly connected with movable connecting rods, the two sides of the telescopic column are both rotationally connected with the movable connecting rods, the other ends of the movable connecting rods are rotationally connected with U-shaped blocks, and the other ends of the U-shaped blocks are fixedly connected with insulating clamping pieces. According to the utility model, the probe is pushed to move through the opening and closing of the clamp, so that the probe is hidden, an electric shock accident caused by the contact with the high-voltage probe can be avoided, and the high-voltage probe can be prevented from being interfered by external environmental factors, thereby improving the stability and accuracy of a test result.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage withstand testers, in particular to an adjustable voltage withstand tester. Background Art

[0002] A withstand voltage tester is an instrument that tests the withstand voltage strength of various electrical products, electrical components and insulating materials under specified voltage. It can flexibly adjust the output voltage value within a certain range according to different test objects and test standards to meet diverse test needs. In the electronic and electrical industry, for electronic components with different withstand voltage levels, the withstand voltage test can be performed quickly and accurately by adjusting the output voltage of the tester.

[0003] In the process of social development, the types of electrical equipment are constantly increasing. From traditional household appliances to industrial automation equipment, communication equipment and new energy equipment, all need to undergo voltage resistance testing. The standards and specifications of different industries are constantly improving, and the requirements for the accuracy and flexibility of voltage resistance testing are getting higher and higher. The globalized market requires products to comply with the safety standards of different countries and regions, which requires meeting the different requirements for voltage resistance testing of electrical products in different regions.

[0004] Adjustable voltage withstand testers operate primarily based on the principle of high voltage generation and measurement. They use an internal boost circuit to boost the input mains voltage to the required test voltage. However, existing testers often have exposed metal on the high-voltage probe, posing a risk of electric shock. Furthermore, the transformer can generate significant heat during prolonged testing or high-voltage, high-current testing. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an adjustable withstand voltage tester, which aims to improve the problem in the prior art that the metal of the probe is exposed, which easily causes the risk of electric shock, and the transformer heats up seriously when the tester is tested for a long time or at high voltage and high current.

[0006] The cam is fixedly provided with a toothed connecting strip which is adapted to connect the cam and the toothed connecting strip to the toothed connecting strip, and the cam is fixedly provided with a toothed connecting strip which is adapted to connect the cam and the toothed connecting strip to the toothed connecting strip.

[0007] As a further description of the above technical solution:

[0008] The heat dissipation mechanism includes an air inlet, which is opened on the rear outer wall of the main body, and an air outlet is opened on the right outer wall of the main body. A transformer is arranged inside the main body, and a fixing plate is fixedly connected to the outer wall of the transformer. A plurality of copper tubes are fixedly connected to the outer wall of the fixing plate, and a copper plate is fixedly connected to the outer wall of the copper tube. A cooling fan is fixedly connected to the bottom surface of the main body.

[0009] As a further description of the above technical solution:

[0010] A power switch is fixedly connected to the left front end of the main body, and a display screen is fixed to the right front end of the main body.

[0011] As a further description of the above technical solution:

[0012] A voltage knob is fixedly connected to the lower end of the front side of the main body, and a warning sign is fixedly connected to the front side of the main body.

[0013] As a further description of the above technical solution:

[0014] Both sides of the main body are fixedly connected with fixing rods, and the outer walls of the fixing rods are rotatably connected with handles.

[0015] As a further description of the above technical solution:

[0016] The four corners of the bottom surface of the main body are fixedly connected with supporting feet, and the bottom surfaces of the supporting feet are fixedly connected with anti-slip pads.

[0017] As a further description of the above technical solution:

[0018] An anti-slip groove is provided at the front end of the insulating clip, and a button is fixedly connected to the middle portion of the front side of the main body.

[0019] As a further description of the above technical solution:

[0020] The lower end of the main body is fixedly connected with a grounding electrode, and the outer wall of the grounding electrode is fixedly connected with an insulating sleeve.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the probe is hidden by opening and closing the clip to push the probe to move, which can prevent the operator from accidentally touching the high-voltage probe and causing electric shock accidents. It can also protect it from interference from external environmental factors, such as the influence of airflow and humidity changes on the probe, thereby improving the stability and accuracy of the test results.

[0023] 2. In the present invention, the heat is distributed to the copper sheet through the copper tube, and the air circulation in the air duct is accelerated by the fan, thereby achieving effective cooling, preventing overheating and fire, avoiding burns to people, and reducing the changes of components due to high temperature, thereby extending their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective view of the main body of the adjustable voltage withstand tester proposed in the utility model;

[0025] Figure 2 This is a structural diagram showing the insulating clip of the adjustable voltage withstand tester proposed in the utility model;

[0026] Figure 3 This is a cross-sectional view of the telescopic column of the adjustable voltage withstand tester proposed in the present invention;

[0027] Figure 4 This is a structural diagram showing the air outlet of the adjustable voltage withstand tester proposed in the utility model;

[0028] Figure 5 This is a schematic diagram of the partial structure of the copper plate of the adjustable voltage withstand tester proposed by the utility model.

[0029] Legend:

[0030] 1. Main body; 2. Heat dissipation mechanism; 201. Air inlet; 202. Air outlet; 203. Cooling fan; 204. Transformer; 205. Fixing plate; 206. Copper sheet; 207. Copper tube; 3. Wire; 4. Telescopic column; 5. Fixing column; 6. Movable connecting rod; 7. U-shaped block; 8. Insulating clip; 9. Fixing rod; 10. Sliding groove; 11. Torsion spring; 12. Center column; 13. Probe; 14. Spring; 15. Concealed groove; 16. Power switch; 17. Voltage knob; 18. Display screen; 19. Anti-slip mat; 20. Insulating sleeve; 21. Support leg; 22. Warning sign; 23. Fixing rod; 24. Carrying handle; 25. Anti-slip groove; 26. Button; 27. Grounding electrode. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Please see the attached Figure 1 - Attachment Figure 3 The utility model provides an embodiment of an adjustable withstand voltage tester, including a main body 1, a wire 3 is fixedly connected to the lower front part of the main body 1, the other end of the wire 3 is fixedly connected to a telescopic column 4, the other end of the telescopic column 4 is provided with a dark groove 15, the dark groove 15 can be used to accommodate other components, one end of the dark groove 15 is fixedly connected to a spring 14, the other end of the spring 14 is fixedly connected to a probe 13, the outer wall of the probe 13 is slidably connected to the inner wall of the dark groove 15, the middle outer wall of the telescopic column 4 is fixedly connected to a fixed column 5, both sides of the fixed column 5 are rotatably connected to a movable connecting rod 6, the other end of the movable connecting rod 6 is rotatably connected to a U-shaped block 7, the U-shaped The other end of the block 7 is fixedly connected to an insulating clip 8, and the middle part of the insulating clip 8 is fixedly connected to a fixed connecting rod 9. The U-shaped block 7 enables them to flexibly cooperate with the movable connecting rod 6 to achieve a certain degree of freedom of movement. The main function of the insulating clip 8 is to provide electrical isolation to ensure that no electric shock occurs during use. The other end of the fixed connecting rod 9 is rotatably connected to a central column 12, and both ends of the central column 12 are fixedly connected to a torsion spring 11. A sliding groove 10 is provided in the middle of the central column 12, and the inner wall of the sliding groove 10 is slidably connected to the outer wall of the telescopic column 4. A heat dissipation mechanism 2 is provided on the rear side of the main body 1, and the heat dissipation mechanism 2 is used to cool the equipment;

[0033] Specifically, the outer wall of the probe 13 can slide with the inner wall of the dark groove 15, and both sides of the fixed column 5 are rotatably connected to the movable link 6. The other end of the movable link 6 is rotatably connected to the U-shaped block 7, and the other end of the U-shaped block 7 is fixedly connected to the insulating clip 8. The middle of the insulating clip 8 is fixedly connected to the fixed link 9, and the other end of the fixed link 9 is rotatably connected to the center column 12. The two ends of the center column 12 are fixedly connected to the torsion spring 11 to apply elastic force to the clamp. A sliding groove 10 is opened in the middle of the center column 12, and the inner wall of the sliding groove 10 can slide with the outer wall of the telescopic column 4.

[0034] Please see the attached Figure 4 - Attachment Figure 5 The heat dissipation mechanism 2 includes an air inlet 201, which is provided on the rear outer wall of the main body 1, and an air outlet 202 is provided on the right outer wall of the main body 1. The air inlet 201 is provided on the rear outer wall of the device main body 1 so that air can enter the interior of the device from the rear. In order to ensure smooth air circulation, an air outlet 202 is provided on the right outer wall of the main body 1, so that hot air can be discharged smoothly, thereby optimizing the air flow path. A transformer 204 is provided inside the main body 1, and a fixing plate 205 is fixedly connected to the outer wall of the transformer 204. A plurality of copper tubes 207 are fixedly connected to the outer wall of the fixing plate 205, and a copper plate 206 is fixedly connected to the outer wall of the copper tube 207. A heat dissipation fan 203 is fixedly connected to the bottom surface of the main body 1.

[0035] Specifically, the air inlet 201 is opened on the rear outer wall of the main body 1 to facilitate the entry of air. An air outlet 202 is also opened on the right outer wall of the main body 1 to facilitate the discharge of hot air. In order to better transfer the heat, a fixing plate 205 is fixedly connected to the outer wall of the transformer 204. This fixing plate 205 not only plays a fixing role, but also helps the conduction of heat. The copper tube 207 has good thermal conductivity and can effectively conduct heat from the fixing plate 205 to the copper plate 206. These copper plates 206 have a large surface area and can effectively dissipate heat into the air. The cooling fan 203 can draw air into the air inlet 201 and discharge the hot air through the air outlet 202, thereby forming an effective heat dissipation cycle.

[0036] Please see the attached Figure 1 - Attachment Figure 2, a power switch 16 is fixedly connected to the left end of the front side of the main body 1, a display screen 18 is fixed to the right end of the front side of the main body 1, a voltage knob 17 is fixedly connected to the lower end of the front side of the main body 1, the power switch 16 controls the power on and off of the entire device, a warning sign 22 is fixedly connected to the front side of the main body 1, fixed rods 23 are fixedly connected to both sides of the main body 1, and the outer wall of the fixed rod 23 is rotatably connected to a handle 24, and the four corners of the bottom surface of the main body 1 are fixedly connected to support feet 21, and the bottom surface of the support feet 21 is fixedly connected to anti-slip pads 19. The anti-slip pads 19 can effectively increase the friction with the ground, thereby ensuring that the main body 1 can remain stable and avoid unnecessary movement or tipping due to sliding. An anti-slip groove 25 is provided at the front end of the insulating clip 8, a button 26 is fixedly connected to the middle part of the front side of the main body 1, and a grounding electrode 27 is fixedly connected to the lower end of the main body 1, and an insulating sleeve 20 is fixedly connected to the outer wall of the grounding electrode 27;

[0037] Specifically, the power switch 16 can conveniently turn the power on and off, and the display screen 18 displays various operating information and data, which is convenient for observing and understanding the operating status of the equipment. The voltage knob 17 is located at the lower end of the front side of the main body 1. The output voltage of the equipment can be adjusted by rotating the knob. The warning sign 22 reminds users to pay attention to the safe use of the equipment to ensure safety during operation. The handle 24 can easily move the equipment. The support feet 21 are located at the four corners of the bottom surface of the main body 1 to ensure that the equipment can remain stable when placed to avoid shaking. The anti-slip groove 25 is located at the front end of the insulating clip 8, which can increase the friction during clamping and improve stability. An insulating sleeve 20 is fixedly connected to the outer wall of the grounding electrode 27. This insulating sleeve 20 is located on the outer wall of the grounding electrode 27 to avoid leakage.

[0038] Working principle: Pinch the rear ends of the two insulating clips 8, use the center column 12 as a fulcrum, open the front ends of the insulating clips 8, fix the fixed column 5 on the telescopic column 4, and the movable connecting rod 6 is rotatably connected to the fixed column 5 and the insulating clip 8. When the rear ends of the insulating clips 8 are close together, the two movable connecting rods 6 push the fixed column 5 forward, and the telescopic column 4 also moves forward. When the probe 13 touches the object to be measured, it continues to move forward to compress the spring 14 and release the rear ends of the two insulating clips 8. The front ends of the two insulating clips 8 clamp the object to be measured under the action of the torsion spring 11, and the spring 14 pushes the probe 13 to contact the object to be measured, thereby hiding the probe 13. This can prevent the operator from accidentally touching the high-voltage probe 13 and causing electric shock accidents, and can also protect it from interference from external environmental factors, such as the influence of airflow and humidity changes on the probe 13, thereby improving the stability and accuracy of the test results.

[0039] When the equipment operates for a long time or outputs high voltage, the transformer 204 is loaded with a large load and generates significant heat. The heat generated by the transformer 204 is transferred to the fixing plate 205, which is then transferred to the copper tube 207. The copper tube 207 then distributes the heat to multiple copper plates 206. The cooling fan 203 is started to accelerate the air flow. Normal temperature air outside the equipment enters from the air inlet 201. Under the action of the cooling fan 203, the hot air is discharged from the air outlet 202, achieving effective cooling, preventing overheating and fire, avoiding burns, and reducing changes in components due to high temperature, thereby extending their service life.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable withstand voltage tester, comprising a main body (1), characterized in that: The front lower part of the main body (1) is fixedly connected to a wire (3), the other end of the wire (3) is fixedly connected to a telescopic column (4), the other end of the telescopic column (4) is provided with a dark groove (15), one end of the dark groove (15) is fixedly connected to a spring (14), the other end of the spring (14) is fixedly connected to a probe (13), the outer wall of the probe (13) is slidably connected to the inner wall of the dark groove (15), the middle outer wall of the telescopic column (4) is fixedly connected to a fixed column (5), both sides of the fixed column (5) are rotatably connected to a movable connecting rod (6), the other end of the movable connecting rod (6) is fixedly connected to the inner wall of the dark groove (15), and the inner wall of the movable connecting rod (6) is fixedly connected to the inner wall of the dark groove (15). The end of the main body (1) is rotatably connected to a U-shaped block (7), the other end of the U-shaped block (7) is fixedly connected to an insulating clip (8), the middle of the insulating clip (8) is fixedly connected to a fixed connecting rod (9), the other end of the fixed connecting rod (9) is rotatably connected to a central column (12), both ends of the central column (12) are fixedly connected to a torsion spring (11), a sliding groove (10) is provided in the middle of the central column (12), the inner wall of the sliding groove (10) is slidably connected to the outer wall of the telescopic column (4), and a heat dissipation mechanism (2) is provided on the rear side of the main body (1), and the heat dissipation mechanism (2) is used to cool the equipment.

2. The adjustable voltage withstand tester according to claim 1, characterized in that: The heat dissipation mechanism (2) comprises an air inlet (201), the air inlet (201) being provided on the rear outer wall of the main body (1), an air outlet (202) being provided on the right outer wall of the main body (1), a transformer (204) being provided inside the main body (1), a fixing plate (205) being fixedly connected to the outer wall of the transformer (204), a plurality of copper tubes (207) being fixedly connected to the outer wall of the fixing plate (205), a copper plate (206) being fixedly connected to the outer wall of the copper tubes (207), and a heat dissipation fan (203) being fixedly connected to the bottom surface of the main body (1).

3. The adjustable voltage withstand tester according to claim 1, characterized in that: A power switch (16) is fixedly connected to the left front end of the main body (1), and a display screen (18) is fixed to the right front end of the main body (1).

4. The adjustable voltage withstand tester according to claim 1, characterized in that: A voltage knob (17) is fixedly connected to the lower end of the front side of the main body (1), and a warning sign (22) is fixedly connected to the front side of the main body (1).

5. The adjustable voltage withstand tester according to claim 1, characterized in that: Fixed rods (23) are fixedly connected to both sides of the main body (1), and handles (24) are rotatably connected to the outer walls of the fixed rods (23).

6. The adjustable voltage withstand tester according to claim 1, characterized in that: Four corners of the bottom surface of the main body (1) are fixedly connected to supporting feet (21), and the bottom surfaces of the supporting feet (21) are fixedly connected to anti-slip pads (19).

7. The adjustable voltage withstand tester according to claim 1, characterized in that: An anti-slip groove (25) is provided at the front end of the insulating clip (8), and a button (26) is fixedly connected to the middle portion of the front side of the main body (1).

8. The adjustable voltage withstand tester according to claim 1, characterized in that: The lower end of the main body (1) is fixedly connected to a grounding electrode (27), and the outer wall of the grounding electrode (27) is fixedly connected to an insulating sleeve (20).

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