Heat pipe heat dissipating device for high-voltage vacuum circuit breaker

Abstract

The application relates to a heat pipe heat dissipation device for a high-voltage vacuum circuit breaker, which comprises a shell and further comprises a radiator group installed on a circuit breaker assembly, wherein the radiator group comprises a heat pipe, heat dissipation fins arranged in the shell, a heat dissipation plate arranged on the circuit breaker assembly, a dynamic auxiliary heat dissipation element and a static auxiliary heat dissipation element arranged in the circuit breaker assembly; the heat pipe heat dissipation device can be close to the circuit breaker assembly and absorb heat, the heat dissipation area is enlarged, the heat is quickly dissipated, the heat is prevented from gathering in the circuit breaker assembly, the heat dissipation fins and the ventilation group are matched, double heat dissipation operations are carried out, the heat dissipation effect is improved, and the problem that the continuously generated heat of a part of high-voltage vacuum circuit breaker contacts is difficult to quickly dissipate outward, the temperature in the circuit breaker assembly continuously rises, and the normal use of the high-voltage vacuum circuit breaker is affected is solved.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker heat dissipation technology, specifically to a heat pipe heat dissipation device for a high-voltage vacuum circuit breaker. Background Technology

[0002] High-voltage vacuum circuit breakers are named for their high-vacuum nature, which is both the arc-extinguishing medium and the insulating medium between the contacts after arc extinguishing. They have the advantages of small size, light weight, suitability for frequent operation, and no need for maintenance during arc extinguishing, and are widely used in power distribution networks.

[0003] The contacts inside a high-voltage vacuum circuit breaker, which function as circuit switches, have contact resistance when closed. The flow of large currents generates heat, and the contacts continue to heat up when in a closed state for extended periods. Currently, in some high-voltage vacuum circuit breakers, the structural space around the vacuum interrupter and contacts is extremely limited, making it difficult to install traditional profile heat sinks. Even if they could be installed, the limited fin area results in poor natural air convection, and the heat dissipation effect falls far short of requirements. While existing technologies have attempted to add heat dissipation fins to the outside of the conductive rod or arrange heat dissipation structures on the surface of the pole, the following shortcomings still exist: 1. Poor heat dissipation path: The heat generated by the contacts mainly relies on the conductive rod, corrugated pipe, and other metal components to be transferred outward by heat conduction, resulting in low thermal conductivity and obvious local hot spots; 2. Significant contradiction between the size of the heat dissipation device and the installation space: Traditional finned heat sinks require a large surface area to be effective, making it difficult to adapt to the circuit breaker structure with limited internal space; 3. Lack of active heat dissipation and dust prevention design: Some solutions attempt to introduce forced air cooling, but the impact of dust accumulation on the heat sink and air duct is not fully considered, resulting in severe degradation of heat dissipation performance after long-term operation and high maintenance frequency. Summary of the Invention

[0004] The purpose of this invention is to provide a heat pipe cooling device for high-voltage vacuum circuit breakers. By setting the heat sink assembly, it can be close to the circuit breaker assembly and absorb heat. Then, by increasing the heat dissipation area, the heat is quickly dissipated, preventing heat accumulation in the circuit breaker assembly. Furthermore, through the cooperation of heat dissipation fins and ventilation groups, the heat dissipation effect is improved through dual heat dissipation operations. This solves the problem that the heat continuously generated by the contacts of some high-voltage vacuum circuit breakers is difficult to dissipate quickly during use, resulting in a continuous rise in the temperature inside the circuit breaker assembly, which can easily affect the normal operation of the high-voltage vacuum circuit breaker.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat pipe cooling device for a high-voltage vacuum circuit breaker, comprising a housing, and further comprising: A radiator assembly is installed on a circuit breaker assembly. The radiator assembly includes heat pipes, heat dissipation fins disposed inside the housing, a heat dissipation plate and a dynamic auxiliary heat dissipation component disposed on the circuit breaker assembly, and a static auxiliary heat dissipation component disposed within the circuit breaker assembly. The dynamic auxiliary heat dissipation component, the heat dissipation plate and the static auxiliary heat dissipation component are all connected to the heat dissipation fins through heat pipes. A ventilation assembly is installed on the surface of the outer casing. The ventilation assembly includes a fixed air-cooling frame that penetrates the outer casing. The heat pipe penetrates the air-cooling frame. A drive unit is installed on one side inside the air-cooling frame, and a filter assembly is installed on the other side inside the air-cooling frame. A processing unit is installed at the bottom of the air-cooled frame, the processing unit including a cleaning section installed at the bottom of the air-cooled frame.

[0006] Preferably, the driving unit includes: The bracket is fixed to the inner wall of the air-cooled frame; The motor is bolted to the surface of the bracket; A drive shaft is rotatably connected to a bracket, and one end of the drive shaft is fixed to the output shaft of a motor. The fan blades are fixed to the surface of the drive shaft.

[0007] Preferably, the filter group includes: The sealing components are fixed to both sides of the air-cooled frame. The crossbar is rotatably connected between the sealing components on both sides; The filler frame is fixed to the surface of the crossbar; The filter cartridge is fitted onto the surface of the filling frame, and the filter cartridge is in contact with the inner wall of the air-cooling frame.

[0008] Preferably, the air-cooled frame has an internal cavity, and a connecting part is installed inside the cavity. The connecting part includes: A rotating shaft rotates through the air-cooled frame, and gear sets are mounted on the surfaces of the rotating shaft and the drive shaft. The spur gear is fixed to the surface of the rotating shaft; A gear ring is rotatably connected inside the cavity. The gear ring is fixed to the crossbar and meshes with a spur gear.

[0009] Preferably, the cleaning unit includes: The extension frame is fixed to the bottom of the air-cooled frame; A two-way lead screw is rotatably connected inside the extension frame; The cleaning component is threaded onto the surface of the bidirectional lead screw. The surface of the cleaning component is slidably connected to the inner wall of the extension frame, and the top of the cleaning component is in contact with the surface of the filter cartridge.

[0010] Preferably, accordion covers are fixed to both sides of the cleaning component, and the end of the accordion cover away from the cleaning component is fixed to the inner wall of the extension frame.

[0011] Preferably, light rods are fixed on both sides of the inner wall of the extension frame, and the light rods slide through the cleaning component.

[0012] Preferably, a conveying unit and a collecting frame are sequentially mounted downwards from the bottom of the extension frame, the conveying unit comprising: The bottom frame is fixed to the bottom of the extension frame, and the collection frame is fixed to the bottom of the bottom frame; The rotating component is rotatably connected inside the base frame. The surfaces of the rotating component, the bidirectional lead screw, and the rotating shaft are all fixed with synchronous pulleys, and a synchronous belt drives the transmission between two adjacent synchronous pulleys.

[0013] Preferably, the surfaces of the extension frame, the bottom frame, and the air-cooled frame are fixed with protective covers, and the synchronous pulley and the synchronous belt are both located inside the protective covers.

[0014] Preferably, limiting portions are installed on both sides of the collection frame, and the limiting portions include: Hollow cylinder, fixed to the surface of the collection frame; A pin slides through the surface of the hollow cylinder, with one end of the pin sliding through the surface of the bottom frame; A collar is used to fix the pin to the surface. An elastic element is sleeved on the surface of the pin, and the two ends of the elastic element abut against the inner wall of the hollow cylinder and the collar, respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, through the arrangement of the heat sink assembly, can be close to the circuit breaker assembly to absorb heat, and then the heat is quickly dissipated by expanding the heat dissipation area, avoiding the accumulation of heat in the circuit breaker assembly. Furthermore, through the cooperation of heat dissipation fins and ventilation assembly, the heat dissipation effect is improved through dual heat dissipation operation. This solves the problem that the heat continuously generated by the contacts of some high-voltage vacuum circuit breakers is difficult to dissipate quickly during use, and the temperature inside the circuit breaker assembly continues to rise, which can easily affect the normal use of the high-voltage vacuum circuit breaker.

[0016] 2. Achieving both high-efficiency heat conduction and spatial adaptability: Heat sinks, auxiliary heat sinks, and auxiliary heat sinks are installed near the moving and stationary contacts to achieve local heat absorption; these heats are quickly and with low loss conducted through heat pipes to the heat sink fins arranged in the relatively spacious interior of the casing for concentrated heat dissipation; this avoids the need to forcibly place large heat sinks in the limited space around the contacts and significantly improves the overall heat conduction efficiency, effectively suppressing the temperature rise of the contacts.

[0017] 3. Enhanced by both air cooling and natural heat dissipation: The heat pipe passes through the air-cooling frame before entering the heat dissipation fins. Under the action of forced airflow, the heat on the surface of the heat pipe is carried away first, achieving primary cooling. The remaining heat is then further dissipated through the heat dissipation fins by natural convection or auxiliary convection, forming a two-stage heat dissipation synergy, which significantly improves the heat dissipation capacity per unit volume.

[0018] 4. Single power source drives multiple actions, compact structure and energy saving: Only one motor is needed to drive: the fan blades rotate to generate forced cooling airflow; the filter cartridge rotates continuously to change the filtration position and avoid dust accumulation at a single point; the cleaning part moves back and forth to automatically clean the surface of the filter cartridge; the rotating part rotates to receive and guide the dust to prevent secondary dust generation; no need for multiple actuators or complex control systems, reducing manufacturing and maintenance costs and improving operational reliability.

[0019] 5. Automatic dust removal and anti-clogging design, adaptable to harsh environments: The filter cartridge + cleaning component + rotating component + collection frame constitute a closed-loop dust removal system, which can continuously remove dust adhering to the surface of the filter cartridge during equipment operation, avoiding air duct blockage and airflow reduction. The rotating component continues to rotate after the dust falls into the collection frame, forming a dynamic shield on the top of the collection frame, effectively preventing dust from being re-entrained due to airflow disturbance, significantly extending the maintenance-free cycle of the heat dissipation device in dusty environments, and reducing the frequency of manual cleaning.

[0020] 6. Easy maintenance and modular replacement: The collection frame is detachably connected to the bottom frame through the limiting part (elastic pin structure), which can be quickly disassembled and assembled without tools, making it easy to clean dust regularly. The outer shell surface is equipped with a reinforcing frame to provide stable support for the collection frame and prevent loosening or displacement caused by operating vibration.

[0021] 7. Improve the overall operational stability and lifespan of the circuit breaker: By effectively controlling the temperature rise of the contacts, the risk of further deterioration of the contact resistance due to heat accumulation is reduced, the aging and electrical wear of the contact materials are delayed, and the decrease in insulation performance or malfunction caused by local overheating is avoided, thereby improving the working reliability of the high-voltage vacuum circuit breaker under long-term closing or frequent operation conditions. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the invention with the outer shell cut open; Figure 3 This is a three-dimensional structural diagram of the present invention with the outer shell and the air-cooling frame cut apart; Figure 4 This is a three-dimensional structural diagram of the air-cooled frame cut open according to the present invention; Figure 5 This is a three-dimensional structural diagram of the present invention with the air-cooling frame and protective cover cut open and the reinforcing frame removed; Figure 6 This is a three-dimensional structural diagram of the present invention with the air-cooling frame, extension frame, bottom frame, and collection frame all cut open and the filter cartridge removed. Figure 7 This is a three-dimensional structural diagram of the present invention, showing the removal of the collection frame and the cutting open of the extension frame, bottom frame, one side hollow cylinder, and accordion cover. Figure 8 For the present invention Figure 7 A magnified structural diagram of point A in the middle.

[0023] In the diagram: 100, outer casing; 200, insulating base; 300, moving contact cup holder; 400, stationary contact cup holder; 500, contact head; 600, moving contact body; 700, radiator assembly; 710, heat dissipation fins; 720, heat pipe; 730, heat dissipation plate; 740, moving auxiliary heat dissipation component; 750, stationary auxiliary heat dissipation component; 800, ventilation assembly; 810, air-cooled frame; 820, drive unit; 821, bracket; 822, motor; 823, drive shaft; 824, fan blade; 825, gear set; 830, filter assembly; 831, sealing component. ; 832, crossbar; 833, filling frame; 834, filter cartridge; 840, connecting part; 841, rotating shaft; 842, spur gear; 843, gear ring; 900, processing group; 910, cleaning part; 911, extension frame; 912, double-acting lead screw; 913, cleaning component; 914, smooth rod; 920, conveying part; 921, bottom frame; 922, rotating component; 930, collection frame; 940, limiting part; 941, hollow cylinder; 942, pin; 943, collar; 944, elastic component; 950, synchronous pulley; 960, reinforcing frame. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-8A heat pipe cooling device for a high-voltage vacuum circuit breaker includes a housing 100 and a heat sink assembly 700 mounted on a circuit breaker assembly. The circuit breaker assembly includes an insulating base 200, a moving contact cup holder 300 and a stationary contact cup holder 400 respectively mounted on the top of the two insulating bases 200. A contact head 500 is installed inside the moving contact cup holder 300, and a moving contact body 600 is disposed inside the moving contact cup holder 300. The heat sink assembly 700 includes heat sink fins 710 disposed inside the housing 100. A heat sink plate 730 is provided at one end of both the moving contact cup holder 300 and the stationary contact cup holder 400. A stationary auxiliary heat sink 750 is installed inside the stationary contact cup holder 400. One end of the moving contact cup holder 300, located on one side of the heat sink plate 730, is provided with a heat sink plate 730. The system includes a dynamic auxiliary heat sink 740, a heat sink 730, and a static auxiliary heat sink 750, all connected to heat sink fins 710 by heat pipes 720. The heat sink 730, dynamic auxiliary heat sink 740, and static auxiliary heat sink 750 absorb heat and expand the heat dissipation range through the heat pipes 720 and heat sink fins 710, improving heat dissipation efficiency. A ventilation assembly 800 is installed on the surface of the outer casing 100. The heat dissipation effect of the heat sink fins 710 and heat pipes 720 inside the outer casing 100 is effective. The ventilation assembly 800 can improve the heat dissipation effect of the heat pipes 720. The ventilation assembly 800 includes a fixed air-cooled frame 810 that penetrates the outer casing 100. The heat pipes 720 penetrate the air-cooled frame 810. When outside air flows inside the air-cooled frame 810, it can absorb heat from the surface of the heat pipes 720. The heat pipe 720 absorbs heat initially, and in conjunction with the heat sink 710, it achieves dual heat dissipation treatment, improving the heat dissipation effect. A drive unit 820 is installed on one side inside the air-cooled frame 810. The drive unit 820 includes a bracket 821 fixed to the inner wall of the air-cooled frame 810. A motor 822 is bolted to the surface of the bracket 821 and a drive shaft 823 is rotatably connected to it. One end of the drive shaft 823 is fixed to the output shaft of the motor 822. Fan blades 824 are fixed to the surface of the drive shaft 823. When the motor 822 starts, the drive shaft 823 drives the fan blades 824 to rotate, thus causing air to flow inside the air-cooled frame 810. A filter assembly 830 is installed on the other side inside the air-cooled frame 810. The filter assembly 830 allows outside air to flow into the air-cooled frame 810. During airflow, the filter assembly 830 filters dust from the air. It includes sealing members 831 fixed to both sides of the air-cooled frame 810, with a crossbar 832 rotatably connected between them. A filling frame 833 is fixed to the surface of the crossbar 832, and a filter cartridge 834 is fitted onto the surface of the filling frame 833. The filter cartridge 834 contacts the inner wall of the air-cooled frame 810. The air-cooled frame 810 has an internal cavity, and a connecting part 840 is installed inside the cavity. The connecting part 840 includes a rotating shaft 841 that rotatably passes through the air-cooled frame 810. Spur gears 842 are fixed to both sides of the rotating shaft 841. A gear ring 843 is rotatably connected inside the cavity, fixed to the crossbar 832, and meshes with the spur gears 842.A gear set 825 is mounted on the surfaces of the rotating shaft 841 and the drive shaft 823. The gear set 825 includes two meshing bevel gears, which are fixed to the surfaces of the drive shaft 823 and the rotating shaft 841, respectively. When the drive shaft 823 rotates, the meshing of the two bevel gears in the gear set 825 causes the rotating shaft 841 to rotate, which in turn drives the spur gear 842 to rotate. At this time, the gear ring 843 rotates, causing the crossbar 832 and the filler frame 833 to rotate. Therefore, while the filter cartridge 834 filters air, it also rotates, reducing the impact of dust accumulation on the surface of the filter cartridge 834 on the airflow rate.

[0026] When the filter cartridge 834 rotates, its position for air filtration can only be changed by rotation. A processing assembly 900 is installed at the bottom of the air-cooled frame 810. The processing assembly 900 includes a cleaning section 910 installed at the bottom of the air-cooled frame 810. The cleaning section 910 includes an extension frame 911 fixed to the bottom of the air-cooled frame 810. A bidirectional lead screw 912 rotates inside the extension frame 911. A cleaning component 913 is threadedly connected to the surface of the bidirectional lead screw 912. The surface of the cleaning component 913 is slidably connected to the inner wall of the extension frame 911. The top of the cleaning component 913 contacts the surface of the filter cartridge 834. When the filter cartridge 834 rotates, the rotation of the bidirectional lead screw 912 drives the cleaning component 913 to reciprocate laterally at the bottom of the filter cartridge 834. The surface of the filter cartridge 834 is cleaned by the cleaning component 913. Bellows covers are fixed to both sides of the cleaning component 913. The end of the bellows cover away from the cleaning component 913 is fixed to the inner wall of the extension frame 911. When the cleaning component 913 moves, the bellows covers extend and retract accordingly to facilitate its movement. The bellows covers also shield the bidirectional lead screw 912, preventing falling dust from affecting the movement of the cleaning component 913. Smooth rods 914 are fixed to both sides of the inner wall of the extension frame 911. These smooth rods 914 slide through the cleaning component 913, guiding its movement and preventing it from rotating with the bidirectional lead screw 912. Conveyors are installed sequentially from the bottom of the extension frame 911 downwards. The filter cartridge 834 consists of a conveying section 920 and a collection frame 930. Dust falls into the collection frame 930 after passing through the conveying section 920. The collection frame 930 collects the dust. The conveying section 920 includes a bottom frame 921 fixed to the bottom of the extension frame 911. The collection frame 930 is fixed to the bottom of the bottom frame 921. A rotating component 922 is rotatably connected inside the bottom frame 921. Synchronous pulleys 950 are fixed to the surfaces of the rotating component 922, the bidirectional lead screw 912, and the rotating shaft 841. A synchronous belt drives the transmission between two adjacent synchronous pulleys 950. Through the cooperation of the synchronous belt and the synchronous pulleys 950, when the rotating shaft 841 rotates, the bidirectional lead screw 912 and the rotating component 922 rotate accordingly. As a result, while the filter cartridge 834 rotates, the cleaning component 913 can reciprocate laterally. When cleaning dust from the surface of the filter cartridge 834, the rotating part 922 can catch the falling dust and, after the dust falls into the collection frame 930, it can shield the top of the collection frame 930 to prevent the dust from floating back. The surfaces of the extension frame 911, the bottom frame 921, and the air-cooling frame 810 are fixed with protective covers. The synchronous pulley 950 and the synchronous belt are both located inside the protective covers, which can reduce the impact of dust on the connection between the synchronous pulley 950 and the synchronous belt. Limiting parts 940 are installed on both sides of the collection frame 930. The limiting part 940 includes a hollow cylinder 941 fixed to the surface of the collection frame 930. A pin 942 slides through the surface of the hollow cylinder 941. A collar 943 is fixed to the surface of the pin 942 and an elastic element 944 is fitted on it.Both ends of the elastic element 944 abut against the inner wall of the hollow cylinder 941 and the surface of the collar 943, respectively. One end of the pin 942 slides through the surface of the bottom frame 921. Under the elastic force of the elastic element 944, the collar 943 is forced to drive the pin 942 through the surface of the rotating element 922. This can be used to connect the collection frame 930 and the bottom frame 921 for subsequent dust collection.

[0027] It is worth noting that the technical features such as the circuit breaker assembly proposed in this technical solution should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be selected using conventional methods in this field. This technical solution will not elaborate further.

[0028] Working principle: The heat generated when the contact head 500 and the moving contact body 600 come into contact is absorbed by the static auxiliary heat sink 750, the moving auxiliary heat sink 740 and the heat sink 730 and conducted through the heat pipe 720 and the heat sink fins 710. By expanding the heat dissipation range, the heat dissipation effect is improved. During this process, the operator starts the motor 822, and the drive shaft 823 drives the fan blades 824 to rotate. Outside air enters the air-cooled frame 810 through the filter cartridge 834. In the air-cooled frame 810, the heat pipe 720 is initially cooled by the air flow. The remaining heat of the heat pipe 720 is dissipated through the heat sink fins 710. Therefore, the heat dissipation effect can be effectively improved by the cooperation of the heat sink fins 710 and the drive unit 820. When outside air enters the air-cooled frame 810 through the filter cartridge 834, the filter cartridge 834 filters the dust in the air. Simultaneously, connected by the gear set 825, the rotating shaft 841 and drive shaft 823 rotate synchronously. The spur gear 842 and gear ring 843 work together to drive the crossbar 832 to rotate, which in turn drives the filter cartridge 834 on its surface to rotate. The dust on the surface of the filter cartridge 834 rotates synchronously with the filter cartridge 834. The dust adhering to the surface of the filter cartridge 834 is cleaned by the reciprocating laterally moving cleaning component 913. The cleaned dust falls downwards through the bottom frame 921 into the collection frame 930. During this process, the rotating component 922 can... The rotating mechanism continuously collects falling dust and directs it into the collection frame 930. Additionally, the rotating component 922 can shield the top of the collection frame 930 to prevent dust from escaping. A reinforcing frame 960 is fixed to the surface of the outer casing 100. The surface of the collection frame 930 contacts the inner wall of the reinforcing frame 960, which supports the collection frame 930 and further stabilizes its position after installation. Workers periodically pull the two side pins 942 to disconnect them from the bottom frame 921 and pull the collection frame 930 laterally to remove it, allowing for thorough cleaning of the dust inside for future use.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat pipe cooling device for a high-voltage vacuum circuit breaker, comprising a housing (100), characterized in that, Also includes: A radiator assembly (700) is installed on the circuit breaker assembly. The radiator assembly (700) includes a heat pipe (720), heat dissipation fins (710) disposed inside the housing (100), a heat dissipation plate (730) disposed on the circuit breaker assembly, a dynamic auxiliary heat dissipation component (740), and a static auxiliary heat dissipation component (750) disposed in the circuit breaker assembly. The dynamic auxiliary heat dissipation component (740), the heat dissipation plate (730), and the static auxiliary heat dissipation component (750) are all connected to the heat dissipation fins (710) through the heat pipe (720). A ventilation assembly (800) is installed on the surface of the housing (100). The ventilation assembly (800) includes a fixed air-cooled frame (810) that penetrates the housing (100). A heat pipe (720) penetrates the air-cooled frame (810). A drive unit (820) is installed on one side inside the air-cooled frame (810), and a filter assembly (830) is installed on the other side inside the air-cooled frame (810). A processing unit (900) is installed at the bottom of the air-cooled frame (810), the processing unit (900) including a cleaning section (910) installed at the bottom of the air-cooled frame (810).

2. The heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 1, characterized in that, The drive unit (820) includes: The bracket (821) is fixed to the inner wall of the air-cooled frame (810); The motor (822) is bolted to the surface of the bracket (821); A drive shaft (823) is rotatably connected to a bracket (821), and one end of the drive shaft (823) is fixed to the output shaft of a motor (822); The fan blade (824) is fixed to the surface of the drive shaft (823).

3. A heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 2, characterized in that, The filter assembly (830) includes: The sealing component (831) is fixed to both sides of the air-cooled frame (810); The crossbar (832) is rotatably connected between the two sealing parts (831); The filler frame (833) is fixed to the surface of the crossbar (832); The filter cartridge (834) is fitted onto the surface of the filling frame (833), and the filter cartridge (834) is in contact with the inner wall of the air-cooled frame (810).

4. A heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 3, characterized in that, The air-cooled frame (810) has an internal cavity, and a connecting part (840) is installed inside the cavity. The connecting part (840) includes: A rotating shaft (841) rotates through the air-cooled frame (810), and a gear set (825) is mounted on the surface of the rotating shaft (841) and the drive shaft (823). A spur gear (842) is fixed to the surface of the rotating shaft (841); A gear ring (843) is rotatably connected inside the cavity. The gear ring (843) is fixed to the crossbar (832) and meshes with the spur gear (842).

5. A heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 4, characterized in that, The cleaning unit (910) includes: The extension frame (911) is fixed to the bottom of the air-cooled frame (810); A two-way lead screw (912) is rotatably connected inside the extension frame (911); The cleaning component (913) is threaded onto the surface of the bidirectional lead screw (912). The surface of the cleaning component (913) is slidably connected to the inner wall of the extension frame (911). The top of the cleaning component (913) is in contact with the surface of the filter cartridge (834).

6. A heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 5, characterized in that: The cleaning component (913) has accordion covers fixed on both sides of its surface. The end of the accordion cover away from the cleaning component (913) is fixed to the inner wall of the extension frame (911).

7. A heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 5, characterized in that: Both sides of the inner wall of the extension frame (911) are fixed with light rods (914), and the light rods (914) slide through the cleaning component (913).

8. A heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 5, characterized in that, The bottom of the extension frame (911) is sequentially fitted with a conveying unit (920) and a collecting frame (930), the conveying unit (920) comprising: The bottom frame (921) is fixed to the bottom of the extension frame (911), and the collection frame (930) is fixed to the bottom of the bottom frame (921); The rotating component (922) is rotatably connected inside the bottom frame (921). The surfaces of the rotating component (922), the bidirectional lead screw (912), and the rotating shaft (841) are all fixed with synchronous pulleys (950). A synchronous belt is used to drive the transmission between two adjacent synchronous pulleys (950).

9. A heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 8, characterized in that: The surfaces of the extension frame (911), the bottom frame (921), and the air-cooled frame (810) are fixed with protective covers, and the synchronous pulley (950) and the synchronous belt are both located inside the protective covers.

10. A heat pipe cooling device for a high-voltage vacuum circuit breaker according to claim 8, characterized in that, Limiting portions (940) are installed on both sides of the collection frame (930), and the limiting portions (940) include: Hollow cylinder (941) is fixed to the surface of collection frame (930); A pin (942) slides through the surface of the hollow cylinder (941), and one end of the pin (942) slides through the surface of the bottom frame (921). The collar (943) is fixed to the surface of the pin (942); An elastic element (944) is sleeved on the surface of the pin (942), and the two ends of the elastic element (944) abut against the inner wall of the hollow cylinder (941) and the collar (943), respectively.

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