Intelligent multifunctional high-voltage megohmmeter

Abstract

The invention discloses an intelligent multifunctional high-voltage megohmmeter which comprises a megohmmeter, the outer wall of the megohmmeter is fixedly connected with a megohmmeter assembly, the top of the megohmmeter is fixedly connected with a wiring terminal, the left side of the megohmmeter is fixedly connected with a display screen, and the left side of the megohmmeter is fixedly connected with a function button. The intelligent multifunctional high-voltage megohmmeter is characterized in that a display screen is arranged on the left side of the megohmmeter, a function button is arranged at the left lower end of the display screen, the left side of the megohmmeter is rotationally connected with a voltage controller, the voltage controller is arranged at the right side of the function button, and the outer wall of the megohmmeter is fixedly connected with a charging interface. The heat-conducting silica gel sheet has excellent flexibility, compressibility and heat-conducting property, can be tightly attached to each heat dissipation surface at the bottom of the high-voltage megohmmeter, ensures the uniformity and integrity of heat transfer, can quickly conduct heat generated in the high-voltage megohmmeter to an external heat dissipation part, and effectively prevents heat accumulation.

Description

Technical Field

[0001] The invention relates to the technical field of digital high-voltage megohmmeters, in particular to an intelligent multifunctional high-voltage megohmmeter. Background Art

[0002] Digital high-voltage megohmmeter is a commonly used and indispensable instrument in electric power, post and telecommunications, communications, electromechanical installation and maintenance, and industrial enterprises that use electricity as industrial power or energy. It is suitable for measuring the resistance value of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment.

[0003] Intelligent multifunctional high-voltage megohmmeters are mainly used to measure the insulation resistance of high-voltage electrical equipment. In such a high-voltage environment, the electronic components and circuits inside the equipment may generate a large amount of heat. In the fields of electricity, communications, petrochemicals, etc., intelligent multifunctional high-voltage megohmmeters often need to work continuously for a long time, which further increases the heat accumulation inside the equipment. The intelligent multifunctional high-voltage megohmmeters in the existing technology cannot achieve a good cooling effect. When the temperature inside the equipment is too high, the performance of the electronic components may change, resulting in a decrease in measurement accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent multifunctional high-voltage megohmmeter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent multifunctional high-voltage megohmmeter, comprising a megohmmeter, a vent hole fixedly connected to the outer wall of the megohmmeter, a filter screen fixedly connected to the left side of the vent hole, the filter screen is made of high-quality filter material, a megohmmeter component is fixedly connected to the outer wall of the megohmmeter, a wiring terminal is fixedly connected to the top of the megohmmeter, a display screen is fixedly connected to the left side of the megohmmeter, the display screen adopts high-brightness LED technology, and can ensure accurate readings even in strong outdoor light environments, and a function button is fixedly connected to the left side of the megohmmeter, and the function button is on the left side of the display screen. At the lower end, users can easily set test parameters, switch display modes or execute other operation instructions through these buttons. The left side of the megohmmeter is rotatably connected to a voltage controller, which supports multiple voltage levels. Users can select a suitable voltage according to the needs of the object under test, and the voltage controller is on the right side of the function button. The outer wall of the megohmmeter is fixedly connected to a charging interface, and the charging interface is at the lower end of the wiring terminal, located at the left end of the display screen. The bottom of the megohmmeter is fixedly connected to a battery slot, and the inner wall of the battery slot is fixedly connected to the battery. No. 5 batteries are used, and the batteries in the battery slot can be replaced.

[0006] Preferably, the megohmmeter is fixedly connected to a water cooling structure inside, the megohmmeter is fixedly connected to a heat-conducting silicone sheet inside, a heat-conducting plate is fixedly connected to the right side of the heat-conducting silicone sheet, a water tank is fixedly connected to the right side of the heat-conducting plate, a water inlet is fixedly connected to the right side of the water tank, a micro water pump is fixedly connected to the top of the water tank, a liquid guide tube is fixedly connected to the left side of the micro water pump, the water tank and the liquid guide tube can be made of corrosion-resistant plastic material, corrosion-resistant plastic material can resist corrosion from water and aqueous solutions, ensuring the long-term stable operation of the water cooling system, and corrosion-resistant plastic has the advantages of being light and easy to process, fins are fixedly connected to the outer wall of the liquid guide tube, the fins are made of aluminum, aluminum has higher thermal conductivity and better heat dissipation performance, and compared with copper, aluminum is lighter, lower cost, and easy to process and shape, making the equipment lighter and more convenient to carry, and a first support rod is fixedly connected to the left side of the fin.

[0007] Preferably, the top of the fin is fixedly connected to an auxiliary heat dissipation structure, the top of the fin is fixedly connected to a support frame, the support frame provides a solid foundation for subsequent heat dissipation components, the right side of the support frame is fixedly connected to a heat sink, the inner wall of the heat sink is fixedly connected to a heat pipe, the top of the support frame is fixedly connected to a second support rod, the top of the second support rod is fixedly connected to a fixing frame, the inner wall of the fixing frame is fixedly connected to a reversing motor, the bottom of the reversing motor is fixedly connected to a sliding rod, the outer wall of the sliding rod is slidably connected to a belt, and the bottom of the sliding rod is fixedly connected to fan blades. The fan blades are made of lightweight and high-strength materials to reduce the overall weight while maintaining sufficient rigidity and stability to ensure efficient air flow, and the fan blades are directly above the heat sink. When the fan blades rotate, a strong airflow is generated to accelerate the speed of air convection, thereby effectively taking away the heat from the heat sink and fins.

[0008] Preferably, an air vent is fixedly connected to the outer wall of the megohmmeter, a filter is fixedly connected to the left side of the air vent, and there are three air vents and three filter screens respectively distributed on the left and right sides and the rear side of the megohmmeter 1.

[0009] Preferably, the right end of the thermally conductive silicone sheet is serrated, the left end of the thermally conductive plate is serrated, and the thermally conductive silicone sheet is meshed with the thermally conductive plate.

[0010] Preferably, a partition is fixedly connected to the inner wall of the water tank, a guide hole is fixedly connected to the top of the partition, and the partition divides the water tank into an upper water tank and a lower water tank, and a water inlet is fixedly connected to the right side of the lower water tank.

[0011] Preferably, the fin is curved, and the inner wall of the fin is fixedly connected with a microchannel.

[0012] Preferably, the heat sink is circular and is installed at the air inlet of the fan blade.

[0013] Preferably, the fan blades are four and evenly distributed along the second support rod, and except for the first fan blade, all the fan blades are driven by a belt through a slide rod. Compared with the prior art, the beneficial effects of the present invention are: by designing the thermally conductive silicone sheet as the bottom of each electronic component, the thermally conductive silicone sheet has excellent softness, compressibility and thermal conductivity, can fit closely to each heat dissipation surface at the bottom of the high-voltage megohmmeter, ensure the uniformity and integrity of heat transfer, and can quickly conduct the heat generated inside the high-voltage megohmmeter to the external heat dissipation components, effectively preventing heat accumulation.

[0014] Because both the thermally conductive silicone sheet and the thermally conductive plate are serrated and meshed, the contact area between the thermally conductive silicone sheet and the thermally conductive plate is greatly increased, thereby transferring heat more effectively. The structure formed by the serrated meshing can more effectively open up the heat channel between the heating part and the heat dissipation part, reduce thermal resistance, and allow heat to flow more smoothly, thereby improving heat dissipation efficiency.

[0015] The water tank is divided into upper and lower water tanks by a partition, and a guide hole is opened on the partition. The holes on the partition allow the coolant between the upper and lower water tanks to be exchanged, thereby forming a convection cycle, which helps to evenly distribute the coolant in the entire water tank and ensure that the heat can be effectively carried away. The convection cycle also promotes the rapid spread of heat and improves the heat dissipation efficiency.

[0016] The fins are curved and have microchannels fixedly connected to the inner walls. The curved fin design can make better use of space and form a complex heat dissipation surface, thereby greatly increasing the heat dissipation area. The microchannels serve as a medium for heat conduction, which can ensure that the heat in the coolant is quickly transferred to the fins. Therefore, the heat transfer efficiency is extremely high, heat accumulation is avoided, and the heat dissipation efficiency is improved.

[0017] The heat sink is circular and the heat sink is equipped with fan blades at the air inlet. When the air flow passes through the fins, the fins will transfer heat to the air flow through heat transfer due to the high temperature of the fins, thereby improving the heat dissipation efficiency of the fins. When the air flow passes through the heat sink, the heat sink temperature is lower than the air flow after being heated by the fins. The heat sink will absorb the heat in the air flow, and the fan blades will blow out the cooled air flow, thereby accelerating the gas flow in the device and improving the overall efficiency of the heat dissipation system.

[0018] A vent is opened through the outer wall of the megohmmeter. The design of the vent allows the air inside and outside the high-voltage megohmmeter to circulate freely, allowing external cold air to enter the equipment and exchange with the hot air, thereby taking away heat and reducing the internal temperature of the equipment. A filter is fixedly connected to the left side of the vent. The filter effectively blocks dust, small particles and other debris in the air from entering the megohmmeter, preventing impurities from adhering to key components such as circuit boards and sensors, affecting the measurement accuracy of the instrument. A heat pipe is fixedly connected to the inner wall of the heat sink, which increases the effective heat dissipation area, allowing the heat sink to dissipate more heat at the same time, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the positive triaxial structure of the present invention; Figure 2 For the present invention Figure 1 A partial enlarged view of point D in the middle; Figure 3 It is a schematic diagram of the back structure of the present invention; Figure 4 It is a schematic diagram of the bottom structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the back side of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged view of the middle part; Figure 7 It is a schematic diagram of the heat dissipation structure of the present invention; Figure 8 For the present invention Figure 7 A partial enlarged view of point B in the middle; Fig. 9 This is a schematic diagram of the water tank structure of the present invention; Fig.10 It is a schematic diagram of the partial analysis structure of the water tank of the present invention; Fig.11 It is a schematic diagram of the heat sink structure of the present invention; Fig.12 This is a schematic diagram of a half-section structure of a heat sink of the present invention; Fig.13 For the present invention Fig.12 A partial enlarged view of point C in the middle; Fig.14 This is a schematic diagram of the auxiliary heat dissipation structure of the present invention; Fig.15 It is a schematic diagram of the heat dissipation pipe structure of the present invention.

[0020] In the figure: 1. megohmmeter; 2. megohmmeter assembly; 201. display screen; 202. function button; 203. terminal block; 204. voltage controller; 205. charging interface; 206. battery slot; 207. battery; 3. water cooling structure; 301. water tank; 302. micro water pump; 303. liquid guide tube; 304. partition; 305. guide hole; 306. water inlet hole; 307. upper water tank; 308. Lower water tank; 309, heat conduction plate; 310, fins; 311, microchannel; 312, vents; 313, first support rod; 314, thermally conductive silicone sheet; 315, filter; 4, auxiliary heat dissipation structure; 401, reversing motor; 402, fan blades; 403, heat pipe; 404, heat sink; 405, support frame; 406, belt; 407, slide rod; 408, fixing frame; 409, second support rod. DETAILED DESCRIPTION

[0021] The following will be combined with the attached embodiment of the present invention Figure 1-15 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-15The present invention provides a technical solution: an intelligent multifunctional high-voltage megohmmeter, comprising a megohmmeter 1, a vent 312 fixedly connected to the outer wall of the megohmmeter 1, a filter 315 fixedly connected to the left side of the vent 312, and three vents 312 and filter 315 respectively distributed on the left and right sides and the rear side of the megohmmeter 1. The vent 312 is opened through the outer wall of the megohmmeter 1. The design of the vent 312 allows air inside and outside the high-voltage megohmmeter to circulate freely, allowing external cold air to enter the interior of the device and exchange with hot air, thereby taking away heat and reducing the internal temperature of the device. The filter 315 is fixedly connected to the left side of the vent 312. These filters 315 are made of high-density microporous materials, which can effectively block dust, particles and other impurities in the air, ensuring that only clean air enters the interior of the device, thereby protecting key components such as circuit boards and sensors from pollution and ensuring the stability of measurement accuracy. and reliability, the megohmmeter component 2 is fixedly connected to the outer wall of the megohmmeter 1, the wiring terminal 203 is fixedly connected to the top of the megohmmeter 1, the display screen 201 is fixedly connected to the left side of the megohmmeter 1, the function button 202 is fixedly connected to the left side of the megohmmeter 1, and the function button 202 is at the lower left end of the display screen 201, the voltage controller 204 is rotatably connected to the left side of the megohmmeter 1, and the voltage controller 204 is on the right side of the function button 202, the outer wall of the megohmmeter 1 is fixedly connected to the charging interface 205, and the charging interface 205 is at the lower end of the wiring terminal 203 and at the left end of the display screen 201, the bottom of the megohmmeter 1 is fixedly connected to a battery slot 206, and the inner wall of the battery slot 206 is fixedly connected to a battery 207, which makes the device more convenient. A replaceable battery slot 206 is designed at the bottom of the megohmmeter 1, and widely available No. 5 batteries are used as power sources. There is no need to worry about charging problems when the power is exhausted, and the battery can be continued to work by simply replacing the battery.

[0023] The megohmmeter 1 is fixedly connected with a water cooling structure 3 inside, and the megohmmeter 1 is fixedly connected with a thermally conductive silicone sheet 314 inside. By designing the thermally conductive silicone sheet 314 as the bottom of each electronic component, the thermally conductive silicone sheet 314 has excellent softness, compressibility and thermal conductivity, and can fit closely to each heat dissipation surface at the bottom of the high-voltage megohmmeter to ensure the uniformity and integrity of heat transfer, and can quickly transfer the heat generated inside the high-voltage megohmmeter to the external heat dissipation components, effectively preventing heat accumulation. The right end of the thermally conductive silicone sheet 314 is serrated, and the left end of the heat conductive plate 309 is The heat-conducting silicone sheet 314 is serrated and meshed with the heat-conducting plate 309. The heat-conducting silicone sheet 314 and the heat-conducting plate 309 are serrated and meshed, so that the contact area between the heat-conducting silicone sheet 314 and the heat-conducting plate 309 is greatly increased, thereby more effectively transferring heat, and the structure formed by the serrated meshing can more effectively open up the heat channel between the heating part and the heat-dissipating part, reduce thermal resistance, and allow heat to flow more smoothly, thereby improving heat dissipation efficiency. The right side of the heat-conducting silicone sheet 314 is fixedly connected to the heat-conducting plate 309, and the right side of the heat-conducting plate 309 is fixedly connected There is a water tank 301, the inner wall of the water tank 301 is fixedly connected with a partition 304, the top of the partition 304 is fixedly connected with a guide hole 305, and the partition 304 divides the water tank 301 into an upper water tank 307 and a lower water tank 308, and the right side of the lower water tank 308 is fixedly connected with a water inlet 306, the water tank is divided into an upper water tank 307 and a lower water tank 308 by the partition 304, and the partition 304 is provided with a guide hole 305, and the guide hole 305 on the partition 304 allows the coolant between the upper water tank 307 and the lower water tank 308 to exchange, thereby forming a convection cycle, which is helpful The coolant is evenly distributed in the entire water tank 301 to ensure that the heat can be effectively taken away. The convection circulation also promotes the rapid spread of heat and improves the heat dissipation efficiency. A water inlet 306 is fixedly connected to the right side of the water tank 301, a micro water pump 302 is fixedly connected to the top of the water tank 301, a liquid guide tube 303 is fixedly connected to the left side of the micro water pump 302, a fin 310 is fixedly connected to the outer wall of the liquid guide tube 303, the fin 310 is curved, and a microchannel 311 is fixedly connected to the inner wall of the fin 310, and a first support rod 313 is fixedly connected to the left side of the fin 310.

[0024] An auxiliary heat dissipation structure 4 is fixedly connected to the top of the fin 310. Through such a design, the auxiliary heat dissipation structure 4 not only forms a good complement to the water cooling structure 3, but also further improves the heat dissipation performance of the megohmmeter through its unique layout and efficient operation mechanism, ensuring the stability and reliability of the equipment under long-term high-load operation. A support frame 405 is fixedly connected to the top of the fin 310, and a heat sink 404 is fixedly connected to the right side of the support frame 405. The heat sink 404 is circular and is installed at the air inlet of the fan blade 402. When the airflow passes through the fin 310, due to the high temperature of the fin 310, the fin 310 will transfer the heat to the airflow through heat transfer, thereby improving the heat dissipation efficiency of the fin 310. When the airflow passes through the heat sink 404, the temperature of the heat sink 404 is lower than the airflow heated by the fin 310. The heat sink 404 will absorb the heat in the airflow, and the fan blade 402 will blow out the cooled airflow, thereby accelerating the gas flow in the device and improving the overall efficiency of the heat dissipation system. The inner wall of the support frame 405 is fixedly connected with a heat pipe 403, and the inner wall of the heat sink 404 is fixedly connected with the heat pipe 403, which increases the effective heat dissipation area, so that the heat sink 404 can dissipate more heat at the same time, thereby improving the heat dissipation efficiency. In addition, the close combination of the heat pipe 403 and the heat sink 404 makes the entire heat dissipation system more compact, which can reduce the size of the device to a certain extent, thereby making the device more compact and more convenient to carry. The top of the support frame 405 is fixedly connected with a second support rod 404. 9. The top of the second support rod 409 is fixedly connected to a fixing frame 408, the inner wall of the fixing frame 408 is fixedly connected to a reversing motor 401, the bottom of the reversing motor 401 is fixedly connected to a sliding rod 407, the outer wall of the sliding rod 407 is slidably connected to a belt 406, the bottom of the sliding rod 407 is fixedly connected to a fan blade 402, there are four fan blades 402 and they are evenly distributed along the second support rod 409, and except for the first fan blade 402, all the other fan blades are driven by the belt 406 through the sliding rod 407, and the fan blades 402 are directly above the heat sink 404.

[0025] Working principle: According to the rated voltage of the device under test, select the appropriate voltage gear to ensure that the selected gear does not exceed the insulation bearing capacity of the device under test, then connect the megohmmeter 1 to the device under test through the terminal 203, and by operating the function button 202, the megohmmeter 1 will start and enter the self-test program. During the self-test, each electronic component inside the meter will be functionally checked one by one to ensure that all components are in the best working condition. After the self-test is completed, the rotating voltage controller 204 starts the test. During this period, the heat generated by each electronic component will quickly pass through the thermal conductive silicone sheet 314, which is an efficient heat conduction medium. The heat on the heat conducting plate 309 is transferred to the heat conducting plate 309. The heat conducting plate 309 is the key link of heat transfer. The heat on the heat conducting plate 309 will be absorbed by the coolant in the water tank 301. After the coolant absorbs the heat, the temperature of the coolant in the lower water tank 308 gradually rises, forming a temperature gradient. According to the basic principle of thermal convection, the hot coolant that expands due to heat and reduces density will naturally rise and enter the upper water tank 307 through the guide hole 305. At the same time, the micro water pump 302 is started, and the liquid guide tube 303 takes the coolant out through the micro water pump 302. The coolant passes through the fins 310 in the liquid guide tube 303, so that the heat of the coolant is transferred. The fins 310 are connected to the fins 310, which greatly increases the area in contact with the air. The larger contact area allows the heat to be dispersed to the surrounding environment more quickly. The inner wall of the fins 310 is fixedly connected with a microchannel 311. The microchannel 311 increases the effective heat exchange area of ​​the fins 310, thereby achieving efficient heat transfer. The reversing motor 401 is started, driving the slide bar 407 to rotate, and then driving the fan blades 402 to rotate at a high speed. As the fan blades 402 rotate, a large amount of airflow is accelerated and guided through the fins 310. The heat on the fins 310 is quickly taken away by forced convection. This heated airflow Then it flows through the heat sink 404. Since the temperature of the heat sink 404 is relatively low, it can effectively absorb the heat in the airflow and further reduce the temperature of the airflow. The heat pipe 403 will increase to reduce the temperature of the airflow. The fully cooled airflow is blown out under the push of the fan blades 402, forming an efficient heat dissipation airflow cycle, and the cooled coolant flows back to the lower water tank 308 through the water inlet 306, completing the entire circulation cooling process. This closed-loop design ensures that the megohmmeter can maintain a stable operating temperature during long-term, high-intensity use, thereby improving the accuracy and reliability of detection.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent multifunctional high-voltage megohmmeter, comprising a megohmmeter (1), wherein an outer wall of the megohmmeter (1) is fixedly connected to a megohmmeter component (2), characterized in that: The top of the megohmmeter (1) is fixedly connected to a wiring terminal (203); the left side of the megohmmeter (1) is fixedly connected to a display screen (201); the left side of the megohmmeter (1) is fixedly connected to a function button (202), and the function button (202) is located at the lower left end of the display screen (201); the left side of the megohmmeter (1) is rotatably connected to a voltage controller (204), and the voltage controller (204) is located on the right side of the function button (202); the outer wall of the megohmmeter (1) is fixedly connected to a charging interface (205), and the charging interface (205) is located at the lower end of the wiring terminal (203) and at the left end of the display screen (201); the bottom of the megohmmeter (1) is fixedly connected to a battery slot (206), and the inner wall of the battery slot (206) is fixedly connected to a battery (207).

2. The intelligent multifunctional high-voltage megohmmeter according to claim 1, characterized in that: The megohmmeter (1) is fixedly connected to a water cooling structure (3) inside, the megohmmeter (1) is fixedly connected to a heat-conducting silicone sheet (314) inside, the heat-conducting silicone sheet (314) is fixedly connected to a heat-conducting plate (309) on the right side, the heat-conducting plate (309) is fixedly connected to a water tank (301) on the right side, the water tank (301) is fixedly connected to a water inlet (306) on the right side, the water tank (301) is fixedly connected to a micro water pump (302) on the top, the micro water pump (302) is fixedly connected to a liquid guide tube (303) on the left side, the outer wall of the liquid guide tube (303) is fixedly connected to a fin (310), and the left side of the fin (310) is fixedly connected to a first support rod (313).

3. The intelligent multifunctional high-voltage megohmmeter according to claim 1, characterized in that: The top of the fin (310) is fixedly connected to an auxiliary heat dissipation structure (4), the top of the fin (310) is fixedly connected to a support frame (405), the right side of the support frame (405) is fixedly connected to a heat sink (404), the inner wall of the heat sink (404) is fixedly connected to a heat pipe (403), the top of the support frame (405) is fixedly connected to a second support rod (409), the top of the second support rod (409) is fixedly connected to a fixing frame (408), the inner wall of the fixing frame (408) is fixedly connected to a reversing motor (401), the bottom of the reversing motor (401) is fixedly connected to a sliding rod (407), the outer wall of the sliding rod (407) is slidably connected to a belt (406), the bottom of the sliding rod (407) is fixedly connected to a fan blade (402), and the fan blade (402) is directly above the heat sink (404).

4. The intelligent multifunctional high-voltage megohmmeter according to claim 1, characterized in that: The outer wall of the megohmmeter (1) is fixedly connected with a vent hole (312), the left side of the vent hole (312) is fixedly connected with a filter screen (315), and there are three vent holes (312) and three filter screens (315) respectively distributed on the left and right sides and the rear side of the megohmmeter (1).

5. The intelligent multifunctional high-voltage megohmmeter according to claim 2, characterized in that: The right end of the heat-conducting silicone sheet (314) is serrated, the left end of the heat-conducting plate (309) is serrated, and the heat-conducting silicone sheet (314) is meshed with the heat-conducting plate (309).

6. The intelligent multifunctional high-voltage megohmmeter according to claim 2, characterized in that: The inner wall of the water tank (301) is fixedly connected to a partition (304), the top of the partition (304) is fixedly connected to a guide hole (305), and the partition (304) divides the water tank (301) into an upper water tank (307) and a lower water tank (308), and the right side of the lower water tank (308) is fixedly connected to a water inlet hole (306).

7. The intelligent multifunctional high-voltage megohmmeter according to claim 2, characterized in that: The fin (310) is curved, and the inner wall of the fin (310) is fixedly connected to a microchannel (311).

8. The intelligent multifunctional high-voltage megohmmeter according to claim 3, characterized in that: The heat sink (404) is circular, and is installed at the air inlet of the fan blade (402).

9. The intelligent multifunctional high-voltage megohmmeter according to claim 3, characterized in that: The fan blades (402) have four blades and are evenly distributed along the second support rod (409), and except for the first fan blade (402), all the blades are driven by a belt (406) through a slide rod (407).

Images