Wind power frequency converter of convective heat exchange circulating cooling mechanism

Abstract

The invention relates to the technical field of wind power frequency converters, in particular to a wind power frequency converter of a convective heat exchange circulating cooling mechanism, which comprises a wind power frequency converter, a heat dissipation assembly is mounted on the wind power frequency converter, the heat dissipation assembly comprises two groups of coolers, and the output ends of the two groups of coolers are both communicated with the interior of a transmission groove. The wind power frequency converter cooling device has the advantages that after heat generated in the wind power frequency converter is subjected to heat exchange through cold air, hot air is conveyed into the two conveying pipes through the two circulating pipes and sprayed out through multiple nozzles on the two conveying pipes, and a complete convective heat exchange circulating cooling path is formed; the problems that the temperature of electronic components in the wind power frequency converter exceeds a rated working range, equipment aging is accelerated, even sudden failure occurs, and the operation stability and the service life of equipment are threatened due to the fact that the surface temperature of desert, gobi or plateau areas is high in summer and heat accumulation of the electronic components in the wind power frequency converter is difficult to dissipate effectively are prevented.

Description

Technical Field

[0001] This invention relates to the field of wind power frequency converter technology, specifically to a wind power frequency converter with a convection heat exchange and cooling mechanism. Background Technology

[0002] Wind power frequency converters are core devices in wind power generation systems used to regulate the output power of generators. Their core function is to convert the variable frequency and variable voltage AC power generated by wind turbines into constant frequency and constant voltage AC power that meets the requirements of the power grid, while simultaneously optimizing power quality and controlling the system. In extreme environments such as deserts, Gobi, or plateaus, the surface temperature often rises significantly in summer due to strong sunlight and thin air or dry heat radiation. The electronic components inside the frequency converter have difficulty dissipating heat effectively, and the component temperature is prone to exceeding the rated operating range, which in turn accelerates the aging of the equipment and may even cause sudden failures, threatening the stability and service life of the equipment. Summary of the Invention

[0003] The purpose of this invention is to provide a wind power frequency converter with a convective heat exchange circulation cooling mechanism. After heat exchange is performed on the heat generated inside the wind power frequency converter by cold air, the hot air is transferred to two sets of transmission pipes through two sets of circulation pipes, and sprayed out by multiple sets of nozzles on the two sets of transmission pipes, forming a complete convective heat exchange circulation cooling path. This prevents the high surface temperature in desert, Gobi or plateau areas during summer from causing the electronic components inside the wind power frequency converter to accumulate heat and be difficult to dissipate effectively, which in turn causes the component temperature to exceed the rated operating range, accelerates equipment aging or even causes sudden failure, and threatens the stability and service life of the equipment.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wind power frequency converter with a convective heat exchange and circulating cooling mechanism, comprising a wind power frequency converter, wherein a heat dissipation assembly is installed on the wind power frequency converter, the heat dissipation assembly includes two sets of coolers, the output ends of the two sets of coolers are connected to the inside of a transmission trough, two sets of circulation pipes are connected to one side of the transmission trough, the exhaust ports of the two sets of circulation pipes are connected to the transmission pipe, multiple sets of nozzles are provided on the transmission pipe, and the exhaust ports of the two sets of circulation pipes are connected to a gas collection hood; The top of the wind power inverter is equipped with a ventilation component, which includes a heat dissipation frame. Two sets of flip rods are rotatably connected inside the heat dissipation frame. A flip plate is fixedly installed on the flip rod. Two sets of springs are fixedly connected to one side of the flip plate. One end of each spring is fixedly connected to the inside of the heat dissipation frame. An impeller is fixedly installed at one end of the flip rod. The impeller is rotatably connected to the inside of the air collection hood. The wind power inverter has protective components fixedly installed on both sides of the interlayer. The two sets of protective components include vibration damping airbags, and one side of the vibration damping airbag is connected to the exhaust port of the circulation pipe.

[0005] Preferably, the outer surface of the transmission channel is fixedly connected to the outer surface of the wind power frequency converter, and both sets of coolers are fixedly connected to the transmission channel.

[0006] Preferably, the wind power inverter has a groove on the top, the heat dissipation frame is fixedly installed inside the groove, and one end of the two sets of air collection covers is fixedly connected to the outer surface of the heat dissipation frame.

[0007] Preferably, both sets of circulation pipes are fixedly installed inside the interlayer on both sides of the wind power inverter, and the exhaust ports of both sets of circulation pipes penetrate into the interlayer on both sides of the wind power inverter, and the exhaust ports of the circulation pipes are connected to the inside of the groove.

[0008] Preferably, one end of each of the two sets of flipping rods passes through the interior of the heat dissipation frame and the gas collection shroud in sequence, and one end of each flipping rod is fixedly connected to the rotating shaft of the impeller, and both sets of flipping plates are rotatably connected to the interior of the heat dissipation frame.

[0009] Preferably, each pair of springs has a fixed frame at one end, and both ends of the fixed frame are fixedly connected to the inside of the heat sink frame.

[0010] Preferably, both sets of shock-absorbing airbags are connected to a connecting pipe on one side, one end of which is connected to the exhaust port of the circulation pipe, and each connecting pipe is equipped with a negative pressure valve.

[0011] Preferably, each set of circulation pipes is provided with a partition between it and the vibration damping airbag, the air inlets of both sets of circulation pipes penetrate into the interior of the interlayer on both sides of the wind power frequency converter, and the air inlets of the circulation pipes are connected to the interior of the transmission groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses cold air to exchange heat generated inside the wind turbine inverter. The hot air is then transferred to two sets of transmission pipes through two sets of circulation pipes, and sprayed out by multiple nozzles on the two sets of transmission pipes, forming a complete convective heat exchange circulation cooling path. This prevents the high surface temperature in desert, Gobi or plateau areas during summer from causing heat accumulation in the electronic components inside the wind turbine inverter, which is difficult to dissipate effectively. This can lead to the component temperature exceeding the rated operating range, accelerating equipment aging or even sudden failure, threatening the stability and service life of the equipment.

[0013] 2. In this invention, the air pressure inside the two sets of air collection hoods is reduced. The elastic force of each pair of springs is greater than the force of the air pressure inside the air collection hood. Each pair of springs drives each set of flip plates to rotate and reset via the flip rod, so that the two sets of flip plates close the heat dissipation frame. This prevents dust in the air in desert, Gobi or plateau areas from entering the wind power frequency converter, which would cause dust to accumulate on the circuit board and electrical connection points, causing short circuits, and also prevent dust from adhering to the heat dissipation components, reducing heat dissipation efficiency and causing the equipment to overheat.

[0014] 3. The vibration damping airbags inside the sandwich layer on both sides of the wind power frequency converter are used to protect and dampen the inside of the wind power frequency converter, preventing continuous high-frequency vibration caused by strong winds, equipment operation, etc. in desert, Gobi or plateau areas, as well as sudden impacts such as earthquakes and typhoons, which may cause internal electronic components to loosen, connection lines to break or structural components to deform and be damaged. Attached Figure Description

[0015] Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 This is a second schematic diagram of the overall structure of the present invention; Figure 3 This is a cross-sectional view of the overall structure of the present invention; Figure 4 This is a cross-sectional view of the heat dissipation component structure of the present invention; Figure 5 This is a cross-sectional view of the heat sink frame structure of the present invention; Figure 6 This is a schematic diagram showing the connection between the flip plate and the spring structure of the present invention; Figure 7 This is a cross-sectional view of the protective component structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure in the middle.

[0016] In the diagram: 1. Wind power frequency converter; 2. Heat dissipation assembly; 201. Cooler; 202. Transmission trough; 204. Circulation pipe; 205. Transmission pipe; 206. Nozzle; 207. Air collection hood; 3. Ventilation assembly; 301. Heat dissipation frame; 302. Tilting rod; 303. Tilting plate; 304. Fixing frame; 305. Spring; 306. Impeller; 4. Protective assembly; 401. Vibration damping airbag; 402. Connecting pipe; 403. Negative pressure valve. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] See Figures 1 to 4As shown, the present invention provides a wind power frequency converter with a convective heat exchange circulation cooling mechanism, including a wind power frequency converter 1, a heat dissipation component 2 installed on the wind power frequency converter 1, the heat dissipation component 2 including two sets of coolers 201, the output ends of the two sets of coolers 201 are connected to the inside of the transmission channel 202, two sets of circulation pipes 204 are connected to one side of the transmission channel 202, the exhaust ports of the two sets of circulation pipes 204 are connected to the transmission pipe 205, the transmission pipe 205 is provided with multiple sets of nozzles 206, and the exhaust ports of the two sets of circulation pipes 204 are connected to the gas collection hood 207. When the wind power inverter 1 is used in a wind farm in a desert, Gobi or plateau region, the staff starts two sets of coolers 201. The two sets of coolers 201 transfer cold air into the transmission channel 202. The cold air is transferred through the transmission channel 202 to the two sets of circulation pipes 204. It circulates in the two sets of circulation pipes 204 to dissipate heat from the inside of the wind power inverter 1. After the cold air exchanges heat with the heat generated inside the wind power inverter 1, the hot air is transferred through the two sets of circulation pipes 204 to the two sets of transmission pipes 205. It is then sprayed out by multiple sets of nozzles 206 on the two sets of transmission pipes 205, forming a complete convective heat exchange circulation cooling path. This prevents the high surface temperature in desert, Gobi or plateau regions in summer from causing the electronic components inside the wind power inverter 1 to accumulate heat and be difficult to dissipate effectively. This can lead to the component temperature exceeding the rated operating range, accelerating equipment aging or even sudden failure, threatening the stability and service life of the equipment. When hot air is transmitted through two sets of circulation pipes 204 to the interior of two sets of transmission pipes 205, and then ejected by multiple sets of nozzles 206 on the transmission pipes 205, a portion of the gas in each set of circulation pipes 204 is transmitted to the interior of the gas collection hood 207. The gas drives the impellers 306 located inside each set of gas collection hoods 207 to rotate. Each set of impellers 306 drives the rotating rods 302 to rotate. Both sets of rotating rods 302 drive the rotating plates 303 to rotate upwards and stretch each set of springs 305. When each set of impellers 306 is stretched to its maximum value, under the tension limit of each set of impellers 306, the two sets of rotating plates 303... The upward rotation stops. Since the two sets of rotating plates 303 stop rotating upward, the two sets of rotating plates 303 drive the two sets of impellers 306 to stop rotating through the two sets of rotating rods 302. Since the gas is continuously transferred into the gas collection hood 207 through the circulation pipe 204, the gas pressure in the gas collection hood 207 is equal to the elastic force of each pair of springs 305. Combined with the tension of each pair of springs 305, the two sets of rotating plates 303 are kept in the rotating state. At this time, the heat dissipation frame 301 is kept in the open state. The two sets of transmission pipes 205 spray the gas through the heat dissipation frame 301 to the outside through multiple sets of nozzles 206 to complete the heat dissipation inside the wind power inverter 1. See Figures 5 to 6As shown, a ventilation assembly 3 is installed on the top of the wind power inverter 1. The ventilation assembly 3 includes a heat dissipation frame 301. Two sets of flip rods 302 are rotatably connected inside the heat dissipation frame 301. A flip plate 303 is fixedly installed on the flip rod 302. Two sets of springs 305 are fixedly connected to one side of the flip plate 303. One end of each spring 305 is fixedly connected to the inside of the heat dissipation frame 301. An impeller 306 is fixedly installed at one end of the flip rod 302. The impeller 306 is rotatably connected to the inside of the air collection hood 207. Simultaneously, multiple nozzles 206 spray gas vertically inside the heat dissipation frame 301. Therefore, the sprayed gas will prevent dust in the air of desert, Gobi or plateau regions from entering the wind power inverter 1. After the wind power inverter 1 finishes working, the staff stops the two sets of coolers 201 from transmitting cold air. The gas no longer passes through the two sets of circulation pipes 204 to the two sets of gas collection hoods 207. At this time, the air pressure inside the two sets of gas collection hoods 207 decreases. The elastic force of each set of springs 305 is greater than the force of the air pressure inside the gas collection hood 207. Each set of springs 305 drives each set of flip plates 303 to rotate and reset through the flip rod 302, so that the two sets of flip plates 303 close the heat dissipation frame 301, preventing dust in the air of desert, Gobi or plateau regions from entering the wind power inverter 1. This would prevent dust from accumulating on the circuit board and electrical connection points, causing short circuits, and adhering to the heat dissipation components, reducing heat dissipation efficiency and causing the equipment to overheat. See Figures 7 to 8 As shown, protective components 4 are fixedly installed on both sides of the wind power inverter 1. The two sets of protective components 4 include vibration damping airbags 401. One side of the vibration damping airbags 401 is connected to the exhaust port of the circulation pipe 204. The vibration damping airbags 401 inside the two side sandwich layers of the wind power inverter 1 are used to protect and dampen the inside of the wind power inverter 1, preventing continuous high-frequency vibration caused by strong winds, equipment operation, etc. in desert, Gobi or plateau areas, as well as sudden impacts such as earthquakes and typhoons, which may cause internal electronic components to loosen, connection lines to break or structural components to deform and be damaged. Because the two sets of damping airbags 401 may experience insufficient gas during long-term use, both sets of negative pressure valves 403 will detect the insufficient air pressure inside the two sets of damping airbags 401 and automatically open. Therefore, the two sets of connecting pipes 402 are in a closed state. When hot air is transmitted to the two sets of transmission pipes 205 through the two sets of circulation pipes 204, some gas will also be transmitted to the damping airbags 401 through the connecting pipes 402 to replenish the gas in the damping airbags 401. This prevents the damping airbags 401 from losing their damping and buffering function due to low air pressure, which could cause damage to the internal components and structural deformation of the wind power inverter 1 when subjected to strong vibrations or impacts in deserts, Gobi or plateau areas, thus affecting the normal operation of the equipment.

[0019] In an optional embodiment, the outer surface of the transmission channel 202 is fixedly connected to the outer surface of the wind power inverter 1, and both sets of coolers 201 are fixedly connected to the transmission channel 202.

[0020] It should be noted that the two sets of coolers 201 are used to transfer cold air inside the transfer tank 202.

[0021] In an optional embodiment, the wind power inverter 1 has a groove on its top, the heat sink 301 is fixedly installed inside the groove, and one end of the two sets of air collection covers 207 is fixedly connected to the outer surface of the heat sink 301.

[0022] It should be noted that the groove is used to fix the heat sink frame 301 and provides a connection place between the heat sink frame 301 and the two sets of gas collection shrouds 207.

[0023] In an optional embodiment, both sets of circulation pipes 204 are fixedly installed inside the interlayer on both sides of the wind power inverter 1. The exhaust ports of both sets of circulation pipes 204 penetrate into the interlayer on both sides of the wind power inverter 1, and the exhaust ports of the circulation pipes 204 are connected to the inside of the groove.

[0024] It should be noted that the cold air is transmitted through the transmission channel 202 to the two sets of circulation pipes 204 respectively, and circulates in the two sets of circulation pipes 204 to dissipate heat from the inside of the frequency converter 1.

[0025] In an optional embodiment, one end of each of the two sets of flip rods 302 passes through the interior of the heat sink 301 and the air collection hood 207 in sequence, and one end of the flip rod 302 is fixedly connected to the shaft of the impeller 306. Both sets of flip plates 303 are rotatably connected to the interior of the heat sink 301.

[0026] It should be noted that the gas drives the impeller 306 located inside each set of gas collecting hoods 207 to rotate, and each set of impellers 306 drives the flipping rod 302 to rotate. Both sets of flipping rods 302 drive the flipping plate 303 to flip upward.

[0027] In an optional embodiment, each pair of springs 305 is fixedly connected to a fixing bracket 304 at one end, and both ends of the fixing bracket 304 are fixedly connected to the inside of the heat sink frame 301.

[0028] It should be noted that when the gas drives the impeller 306 to drive the rotating rod 302 to rotate the rotating plate 303 upward and stretch the spring 305, when the impeller 306 is stretched to its maximum value, the tension of the spring 305 restricts the rotating plate 303 from continuing to rotate, causing it to stop and driving the impeller 306 to stop rotating. The subsequent continuous input of gas makes the air pressure of the gas collecting hood 207 equal to the elastic force of the spring 305, which, together with its tension, keeps the rotating plate 303 rotating and the heat dissipation frame 301 open, helping to complete the internal heat dissipation of the wind power inverter 1.

[0029] In an optional embodiment, each of the two sets of shock-absorbing airbags 401 is connected to a connecting pipe 402 on one side. One end of the connecting pipe 402 is connected to the exhaust port of the circulation pipe 204, and each connecting pipe 402 is equipped with a negative pressure valve 403.

[0030] It should be noted that during prolonged use, the two sets of shock-absorbing airbags 401 may experience insufficient gas. In this case, both sets of negative pressure valves 403 will detect insufficient air pressure inside the two sets of shock-absorbing airbags 401 and automatically open. At this time, the two sets of connecting pipes 402 will be in a closed state.

[0031] In an optional embodiment, a partition is provided between each set of circulation pipes 204 and the vibration damping airbag 401, and the air inlets of both sets of circulation pipes 204 penetrate into the interior of the interlayer on both sides of the wind power inverter 1, and the air inlets of circulation pipes 204 are connected to the interior of the transmission groove 202.

[0032] It should be noted that the partition is used to ensure that each set of circulation pipes 204 and the shock-absorbing airbag 401 do not interfere with each other when they are working. The two sets of coolers 201 transfer cold air to the inside of the transmission channel 202, and the cold air is transferred to the inside of the two sets of circulation pipes 204 through the transmission channel 202 respectively.

[0033] Working principle: When the wind power inverter 1 is used in a wind farm in a desert, Gobi or plateau region, the staff starts two sets of coolers 201. The two sets of coolers 201 transfer cold air into the transmission channel 202. The cold air is transferred to the two sets of circulation pipes 204 through the transmission channel 202. It circulates in the two sets of circulation pipes 204 to dissipate heat from the inside of the wind power inverter 1. After the cold air exchanges heat with the heat generated inside the wind power inverter 1, the hot air is transferred to the two sets of transmission pipes 205 through the two sets of circulation pipes 204. It is then sprayed out by multiple sets of nozzles 206 on the two sets of transmission pipes 205, forming a complete convective heat exchange circulation cooling path. When hot air is transmitted through two sets of circulation pipes 204 to the interior of two sets of transmission pipes 205, and then ejected by multiple sets of nozzles 206 on the transmission pipes 205, a portion of the gas in each set of circulation pipes 204 is transmitted to the interior of the gas collection hood 207. The gas drives the impellers 306 located inside each set of gas collection hoods 207 to rotate. Each set of impellers 306 drives the rotating rods 302 to rotate. Both sets of rotating rods 302 drive the rotating plates 303 to rotate upwards and stretch each set of springs 305. When each set of impellers 306 is stretched to its maximum value, under the tension limit of each set of impellers 306, the two sets of rotating plates 303... The upward rotation stops. Since the two sets of rotating plates 303 stop rotating upward, the two sets of rotating plates 303 drive the two sets of impellers 306 to stop rotating through the two sets of rotating rods 302. Since the gas is continuously transferred into the gas collection hood 207 through the circulation pipe 204, the gas pressure in the gas collection hood 207 is equal to the elastic force of each pair of springs 305. Combined with the tension of each pair of springs 305, the two sets of rotating plates 303 are kept in the rotating state. At this time, the heat dissipation frame 301 is kept in the open state. The two sets of transmission pipes 205 spray the gas through the heat dissipation frame 301 to the outside through multiple sets of nozzles 206 to complete the heat dissipation inside the wind power inverter 1. At the same time, multiple sets of nozzles 206 spray gas vertically inside the heat dissipation frame 301. Therefore, the sprayed gas will prevent dust in the air of desert, Gobi or plateau areas from entering the wind power inverter 1. After the wind power inverter 1 finishes working, the staff will stop the two sets of coolers 201 from transmitting cold air. The gas will no longer be transmitted to the two sets of gas collection hoods 207 through the two sets of circulation pipes 204. At this time, the air pressure inside the two sets of gas collection hoods 207 will decrease. The elastic force of each set of springs 305 is greater than the force of the air pressure inside the gas collection hood 207. Each set of springs 305 will drive each set of flip plates 303 to rotate and reset through the flip rod 302, so that the two sets of flip plates 303 close the heat dissipation frame 301. The vibration damping airbags 401 inside the two side sandwich layers of the wind power inverter 1 are used to protect and dampen the inside of the wind power inverter 1. Since the two sets of vibration damping airbags 401 may experience insufficient gas during long-term use, the two sets of negative pressure valves 403 detect that the internal air pressure of the two sets of vibration damping airbags 401 is insufficient, and the two sets of negative pressure valves 403 open automatically. Therefore, the two sets of connecting pipes 402 are in a closed state. When hot air is transmitted to the two sets of transmission pipes 205 through the two sets of circulation pipes 204, some gas will also be transmitted to the vibration damping airbags 401 through the connecting pipes 402 to replenish the gas in the vibration damping airbags 401.

[0034] 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 wind power frequency converter with a convection heat exchange circulation cooling mechanism, comprising a wind power frequency converter (1), characterized in that, The wind power inverter (1) is equipped with a heat dissipation assembly (2), which includes two sets of coolers (201). The output ends of the two sets of coolers (201) are connected to the inside of the transmission channel (202). Two sets of circulation pipes (204) are connected to one side of the transmission channel (202). The exhaust ports of the two sets of circulation pipes (204) are connected to the transmission pipe (205). Multiple sets of nozzles (206) are provided on the transmission pipe (205). The exhaust ports of the two sets of circulation pipes (204) are connected to the air collection hood (207). The top of the wind power inverter (1) is equipped with a ventilation assembly (3). The ventilation assembly (3) includes a heat sink frame (301). Two sets of flip rods (302) are rotatably connected inside the heat sink frame (301). A flip plate (303) is fixedly installed on the flip rod (302). Two sets of springs (305) are fixedly connected to one side of the flip plate (303). One end of each spring (305) is fixedly connected to the inside of the heat sink frame (301). An impeller (306) is fixedly installed at one end of the flip rod (302). The impeller (306) is rotatably connected to the inside of the air collection hood (207). The wind power inverter (1) has protective components (4) fixedly installed on both sides of the interlayer. The two sets of protective components (4) include vibration damping airbags (401). One side of the vibration damping airbags (401) is connected to the exhaust port of the circulation pipe (204).

2. The wind power frequency converter with a convective heat exchange and circulating cooling mechanism according to claim 1, characterized in that, The outer surface of the transmission channel (202) is fixedly connected to the outer surface of the wind power inverter (1), and both sets of coolers (201) are fixedly connected to the transmission channel (202).

3. The wind power frequency converter with a convective heat exchange and circulating cooling mechanism according to claim 1, characterized in that, The wind power inverter (1) has a groove on the top, and the heat dissipation frame (301) is fixedly installed inside the groove. One end of the two sets of air collection hoods (207) is fixedly connected to the outer surface of the heat dissipation frame (301).

4. A wind power frequency converter with a convective heat exchange and circulating cooling mechanism according to claim 3, characterized in that, Both sets of circulation pipes (204) are fixedly installed inside the interlayer on both sides of the wind power inverter (1). The exhaust ports of both sets of circulation pipes (204) penetrate into the interlayer on both sides of the wind power inverter (1), and the exhaust ports of the circulation pipes (204) are connected to the inside of the groove.

5. A wind power frequency converter with a convective heat exchange and circulating cooling mechanism according to claim 1, characterized in that, One end of each of the two sets of flip rods (302) passes through the interior of the heat dissipation frame (301) and the gas collection shroud (207) in sequence, and one end of the flip rod (302) is fixedly connected to the shaft of the impeller (306). Both sets of flip plates (303) are rotatably connected to the interior of the heat dissipation frame (301).

6. A wind power frequency converter with a convective heat exchange and circulating cooling mechanism according to claim 5, characterized in that, Each pair of springs (305) has a fixed bracket (304) at one end, and both ends of the fixed bracket (304) are fixedly connected to the inside of the heat sink frame (301).

7. A wind power frequency converter with a convective heat exchange and circulating cooling mechanism according to claim 1, characterized in that, Both sets of shock-absorbing airbags (401) are connected to a connecting pipe (402) on one side. One end of the connecting pipe (402) is connected to the exhaust port of the circulation pipe (204). A negative pressure valve (403) is provided on the connecting pipe (402).

8. A wind power frequency converter with a convective heat exchange and circulating cooling mechanism according to claim 1, characterized in that, Each set of circulation pipes (204) is provided with a partition between it and the damping airbag (401). The air inlets of the two sets of circulation pipes (204) penetrate into the interior of the interlayer on both sides of the wind power inverter (1), and the air inlets of the circulation pipes (204) are connected to the interior of the transmission groove (202).

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