Waterproof and moisture-proof frequency converter

Abstract

The invention relates to the related technical field of frequency converters, in particular to a waterproof and moisture-proof frequency converter which comprises a frequency converter body, the surface of the frequency converter body is connected with a sealing plate, and a heat dissipation waterproof mechanism is arranged in the frequency converter body. According to the waterproof and moistureproof frequency converter, through the arrangement of the heat dissipation waterproof mechanism, when the frequency converter main body is used, air is firstly filtered by a second filter plate and then is pumped into an air inlet pipe by a fan, and then when the air passes through a support plate, most moist moisture in the air is attached to absorbent cotton; then the air with the moisture adsorbed enters the frequency converter body after being subjected to adsorption treatment through the second drying net plate again, then hot air in the frequency converter body is blown to the inner bottom of the frequency converter body by the air blown into the frequency converter body, and then the air mixed with the hot air is blown out of the frequency converter body after passing through the first drying net plate and the first filter plate; and when the absorbent cotton adsorbs excessive moisture, the electric heating wire can be started to dry the frequency converter main body.

Description

Technical Field

[0001] The present invention relates to the technical field related to frequency converters, and in particular to a waterproof and moisture-proof frequency converter. Background Art

[0002] The frequency converter is an electric energy control device that uses the on-off function of power semiconductor devices to convert the industrial frequency power supply into another frequency. Frequency converters are widely used in various fans, water pumps, compressors, rolling mills, etc. in large-scale mining production plants, petrochemicals, municipal water supply, metallurgy and steel, electric power and energy industries. With the development of the market economy and the improvement of automation and intelligence, the use of frequency converters to control the speed of pump loads is not only beneficial to improving processes and improving product quality, but also a requirement for energy saving and economical operation of equipment. It is an inevitable trend of sustainable development, and the frequency converter needs to be waterproof and moisture-proof. Therefore, a waterproof and moisture-proof frequency converter is particularly needed.

[0003] However, the existing inverter has poor moisture-proof effect. When the weather is humid, water vapor can easily enter the inverter. In addition, the existing inverter has poor waterproof performance. When used outdoors, rainwater can easily enter the inverter. The intrusion of water can easily affect the normal operation of the inverter. Summary of the invention

[0004] The purpose of the present invention is to provide a waterproof and moisture-proof inverter to solve the problem that the existing inverter proposed in the above background technology has poor moisture-proof effect. When the weather is humid, water vapor can easily enter the inverter. In addition, the existing inverter has poor waterproof performance. When used outdoors, rainwater can easily enter the inverter. The intrusion of water can easily affect the normal operation of the inverter.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a waterproof and moisture-proof inverter, comprising an inverter body, a sealing plate connected to the surface of the inverter body, a heat dissipation and waterproof mechanism arranged inside the inverter body, a protective mechanism arranged on one side of the surface of the inverter body, a connection end connected to one side of the surface of the inverter body, a fixing shell connected to one side of the surface of the inverter body, and a moisture-proof mechanism arranged on one side of the surface of the connection end;

[0006] The heat dissipation and waterproof mechanism comprises a first drying mesh plate, a first filter plate, a fan, a slot, a slide groove, a second filter plate, an air outlet pipe, a first limiting groove, a first spring, a support plate, a second drying mesh plate, a push block, an electric heating wire and water-absorbing cotton, the first drying mesh plate is embedded in the inner side of the inverter body, the first filter plate is embedded on one side of the surface of the inverter body, the fan is installed inside the fixed shell, the surface of the fixed shell is provided with a slot, the surface of the fixed shell is provided with a slide groove, the surface of the fixed shell is provided with the second filter plate on one side, one end of the fan is sealed and connected to the air outlet pipe, the second filter plate is provided with a first limiting groove, the second filter plate is embedded in the interior of the second filter plate, the air outlet pipe is embedded with a support plate, the air outlet pipe is embedded with the second drying mesh plate, one end of the first spring is connected to the push block, the inner side of the support plate is connected to the electric heating wire, and the surface of the support plate is connected to one side of the water-absorbing cotton.

[0007] Preferably, one side of the surface of the first drying screen is in contact with the inner wall of the inverter body, and the first filter plate is in contact with the inner wall of the inverter body.

[0008] Preferably, the first spring is embedded in the first limiting groove, and one end of the fan is sealed and connected to the fixed shell.

[0009] Preferably, one end of the second filter plate matches the size of the slide groove, one end of the push block is embedded in the first limiting groove, and the other end of the push block matches the size of the slot.

[0010] Preferably, the protective mechanism includes a fixed column, a second limiting groove, a buffer spring, a connecting rod and a dust shield plate. A fixed column is connected to one side of the surface of the inverter body, a second limiting groove is opened inside the fixed column, a buffer spring is embedded inside the fixed column, one end of the buffer spring is connected to the connecting rod, and one end of the connecting rod is connected to the dust shield plate.

[0011] Preferably, the buffer spring is embedded in the second limiting groove, and two groups of the buffer spring are provided.

[0012] Preferably, one end of the connecting rod is engaged in the second limiting groove, and two groups of connecting rods are provided.

[0013] Preferably, the moisture-proof mechanism includes an embedding groove, a placement box, an empty groove, a second spring, a limiting groove, a limiting block, a pull rod and a pull ring. One side of the surface of the connecting end is provided with an embedding groove, one side of the surface of the connecting end is embedded with a placement box, one side of the surface of the connecting end is provided with an empty groove, a second spring is embedded inside the connecting end, one side of the surface of the placement box is provided with a limited groove, one end of the second spring is connected to the limiting block, one side of the surface of the limiting block is connected with a pull rod, and one end of the pull rod is connected to a pull ring.

[0014] Preferably, one end of the placement box is embedded in the embedding groove, and the second spring is embedded in the empty groove.

[0015] Preferably, one end of the pull rod passes through the second spring and is connected to the limit block, and one end of the limit block matches the size of the limit groove.

[0016] Compared with the prior art, the invention has the following beneficial effects: the waterproof and moisture-proof inverter,

[0017] 1. Through the setting of the heat dissipation and waterproof mechanism, when the inverter body is in use, the fan can draw the external air filtered by the second filter plate into the air inlet pipe, and the second filter plate can effectively block and isolate the dust and other impurities in the air, preventing the dust and the like from entering the interior of the inverter body. The air entering the air inlet pipe passes through the absorbent cotton and the adsorption of the second drying mesh plate, thereby sending the dry air into the interior of the inverter body, effectively preventing the entry of water vapor, and the dry air can blow the internal hot air of the inverter body to the bottom, and is discharged after passing through the first drying mesh plate 301 and the first filter plate 302, effectively achieving the heat dissipation of the interior of the inverter body, and the second filter plate can be cleaned and replaced, and the absorbent cotton can be dried by the electric heating wire.

[0018] 2. The protective mechanism can block dust or rocks falling from the top of the inverter body. When rocks fall from the top of the inverter body, the dust shield can block the rocks. The impact force of the rocks on the dust shield can be absorbed by the compression of the buffer spring, thereby effectively protecting the inverter body.

[0019] 3. Through the setting of moisture-proof mechanism, the moisture around the wiring point is adsorbed into the drying bag through the drying bag placed in the placement box, thereby improving the dryness of the air around the wiring point, and then protecting the wiring point from the influence of humid air. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the side appearance structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the heat dissipation and waterproofing structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional exploded structure of the heat dissipation and waterproof mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the exploded structure of the protection mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the decomposition structure of the moisture-proof mechanism of the present invention;

[0025] Figure 6For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0026] Figure 7 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0027] Figure 8 For the present invention Figure 5 Enlarged structural diagram at point C in the middle.

[0028] In the figure: 1. inverter body; 2. sealing plate; 3. heat dissipation and waterproofing mechanism; 301. first drying mesh plate; 302. first filter plate; 303. fan; 304. card slot; 305. slide slot; 306. second filter plate; 307. air outlet pipe; 308. first limiting slot; 309. first spring; 310. support plate; 311. second drying mesh plate; 312. card push block; 313. heating wire; 314. absorbent cotton; 4. protection mechanism; 401. fixed column; 402. second limiting slot; 403. buffer spring; 404. connecting rod; 405. dust shield; 5. connecting end; 6. fixed shell; 7. moisture-proof mechanism; 701. embedded slot; 702. placement box; 703. empty slot; 704. second spring; 705. limiting slot; 706. limiting block; 707. pull rod; 708. pull ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-8 The present invention provides a technical solution: a waterproof and moisture-proof inverter, comprising an inverter body 1, a sealing plate 2 is connected to the surface of the inverter body 1, a heat dissipation and waterproof mechanism 3 is arranged inside the inverter body 1, a protective mechanism 4 is arranged on one side of the surface of the inverter body 1, a connection end 5 is connected to one side of the surface of the inverter body 1, a fixing shell 6 is connected to one side of the surface of the inverter body 1, and a moisture-proof mechanism 7 is arranged on one side of the surface of the connection end 5;

[0031] The heat dissipation and waterproof mechanism 3 includes a first drying mesh plate 301, a first filter plate 302, a fan 303, a slot 304, a slide 305, a second filter plate 306, an air outlet pipe 307, a first limit slot 308, a first spring 309, a support plate 310, a second drying mesh plate 311, a push block 312, a heating wire 313 and a water-absorbing cotton 314. The first drying mesh plate 301 is embedded in the inner side of the inverter body 1, and the first filter plate 302 is embedded in one side of the surface of the inverter body 1. The fan 303 is installed inside the fixed shell 6, and a slot 304 is provided on one side of the surface of the fixed shell 6. A slide groove 305 is provided on one side of the surface of the fixed shell 6, a second filter plate 306 is embedded on one side of the surface of the fixed shell 6, an air outlet pipe 307 is sealed at one end of the fan 303, a first limiting groove 308 is provided inside the second filter plate 306, a first spring 309 is embedded inside the second filter plate 306, a support plate 310 is embedded inside the air outlet pipe 307, a second drying screen plate 311 is embedded inside the air outlet pipe 307, a push block 312 is connected to one end of the first spring 309, an electric heating wire 313 is connected to the inner side of the support plate 310, and a water absorbing screen 311 is connected to one side of the surface of the support plate 310. When the inverter body 1 is in use, the air is first filtered by the second filter plate 306 and then sucked into the air outlet pipe 307 by the fan 303. Then, when the air passes through the support plate 310, most of the moisture inside it will adhere to the absorbent cotton 314. Then, the air after the moisture absorption will enter the inverter body 1 after being adsorbed by the second drying mesh plate 311 again. Then, the hot air inside the inverter body 1 will be blown into the inverter body 1 and blown to its inner bottom. Then, the air mixed with hot air will be blown out of the inverter body 1 after passing through the first drying mesh plate 301 and the first filter plate 302. To cool down the inverter body 1, when the absorbent cotton 314 absorbs too much moisture, the heating wire 313 can be started to dry it. Then, when the second filter plate 306 is blocked and cannot effectively facilitate subsequent heat dissipation, the user pushes one side of the push block 312, and then the push block 312 moves and squeezes the first spring 309 inside the first limiting groove 308. The first spring 309 is compressed by force, and at the same time, one end of the push block 312 is disengaged from the groove 304 on one side of the fixed shell 6, and then the second filter plate 306 is pulled to remove the second filter plate 306 from the slide groove 305 for replacement or cleaning.

[0032] Furthermore, one side of the surface of the first drying mesh plate 301 is in contact with the inner wall of the inverter body 1, and the first filter plate 302 is in contact with the inner wall of the inverter body 1. By setting the first drying mesh plate 301 and the first filter plate 302, when in use, the first drying mesh plate 301 can dry the air mixed with hot air blown out from the inside of the inverter body 1 to prevent the humid air from having an adverse effect on the surrounding environment after being discharged, and at the same time prevent the external humid air from entering the inverter body 1 in reverse, while the first filter plate 302 can block impurities such as dust in the air to prevent dust and other impurities from entering the interior of the inverter body 1 and affecting the use of the inverter body 1.

[0033] Furthermore, the first spring 309 is embedded in the first limiting groove 308, and one end of the fan 303 is sealed and connected to the fixed shell 6. Through the arrangement of the fan 303, the first limiting groove 308 and the first spring 309, when in use, the fan 303 provides power for the flow of air, draws external air into the outlet pipe 307 and blows it into the inverter body 1, so as to achieve subsequent cooling of the inverter body 1. The first limiting groove 308 can provide activity space for the first spring 309 and the push block 312, and limit the movement range of the push block 312. Under normal conditions, the first spring 309 fixes the second filter plate 306 to the fixed shell 6 through the push block 312. When the second filter plate 306 needs to be replaced or cleaned, it is squeezed and deformed by the push block 312, providing a restoring force for the movement of the push block 312.

[0034] Furthermore, one end of the second filter plate 306 is consistent with the size of the slide groove 305, one end of the push block 312 is embedded in the first limit groove 308, and the other end of the push block 312 is consistent with the size of the slot 304. Through the arrangement of the slide groove 305, the second filter plate 306 and the push block 312, when in use, the slide groove 305 provides a guide for the installation and removal of the second filter plate 306, which is convenient for the removal and installation of the second filter plate 306. The second filter plate 306 can perform preliminary filtration on the air entering the fan 303, remove large particles of impurities and dust in the air, and prevent these impurities from entering the inverter body 1 and affecting its normal operation. The push block 312 is connected to the first spring 309, and through the cooperation with the slot 304 and under the action of the first spring 309, the second filter plate 306 is fixed and unlocked, which is convenient for the installation and removal of the second filter plate 306.

[0035] Furthermore, the protection mechanism 4 includes a fixed column 401, a second limiting groove 402, a buffer spring 403, a connecting rod 404 and a dust shield 405. The fixed column 401 is connected to one side of the surface of the inverter body 1, and the second limiting groove 402 is opened inside the fixed column 401. The buffer spring 403 is embedded in the fixed column 401. One end of the buffer spring 403 is connected to the connecting rod 404, and one end of the connecting rod 404 is connected to the dust shield 405. The spring 403, the connecting rod 404 and the dust shield 405 are arranged so that when a stone falls from the top of the inverter body 1 during use, the stone first hits the dust shield 405, and then the dust shield 405 is forced to move the connecting rod 404, and then the connecting rod 404 compresses the buffer spring 403 inside the second limiting groove 402. At this time, the buffer spring 403 inside the fixed column 401 buffers the impact force on the surface of the dust shield 405, thereby avoiding the impact force from directly acting on the inverter body 1, thereby protecting the inverter body 1.

[0036] Furthermore, the buffer spring 403 is embedded in the second limiting groove 402, and two groups of buffer springs 403 are arranged. Through the arrangement of the buffer spring 403, when in use, the buffer spring 403 can absorb the impact force through its own compression deformation when the dust guard plate 405 is hit by a stone, thereby converting the strong impact force into elastic potential energy, greatly reducing the force transmitted to the inverter body 1, and playing a key buffering protection role.

[0037] Furthermore, one end of the connecting rod 404 is engaged with the second limiting groove 402, and the connecting rod 404 is provided with two groups. Through the setting of the second limiting groove 402 and the connecting rod 404, when in use, the second limiting groove 402 provides guidance and limiting effects for the movement of the connecting rod 404, ensuring that the connecting rod 404 can move in a specific direction when subjected to external force, preventing it from being offset or misplaced, and ensuring the stable operation of the entire protective mechanism 4. The connecting rod 404 connects the dust shield plate 405 and the buffer spring 403, and can transmit the external force received by the dust shield plate 405 to the buffer spring 403 in time, so that the buffer spring 403 can play a buffering function, and at the same time, under the action of the buffer spring 403, the dust shield plate 405 is driven to move, thereby realizing the force transmission and buffering process.

[0038] Furthermore, the moisture-proof mechanism 7 includes an embedding groove 701, a placement box 702, an empty groove 703, a second spring 704, a limiting groove 705, a limiting block 706, a pull rod 707 and a pull ring 708. One side of the surface of the connecting end 5 is provided with an embedding groove 701, one side of the surface of the connecting end 5 is embedded with the placement box 702, one side of the surface of the connecting end 5 is provided with an empty groove 703, the inside of the connecting end 5 is embedded with the second spring 704, one side of the surface of the placement box 702 is provided with a limited groove 705, one end of the second spring 704 is connected to the limited block 706, one side of the surface of the limiting block 706 is connected to the pull rod 707, and one end of the pull rod 707 is connected to the pull ring 708. By setting the embedding groove 701, the placement box 702, the empty groove 703, the second spring 704, the limiting groove 705, the limiting block 706, the pull rod 707 and the pull ring 708 When in use, when the wiring at one side of the connection end 5 is moisture-proof, first when the wiring is in a humid environment, the desiccant bag inside the placement box 702 will continuously absorb moisture in the surrounding air, so that the air around the wiring is in a dry state, thereby ensuring that the metal part of the wiring will not be easily corroded, effectively avoiding affecting the normal use of the inverter. When the desiccant bag needs to be replaced, the user pulls the pull ring 708, and then the pull ring 708 drives the pull rod 707 to move, and then the pull rod 707 drives the limit block 706 to disengage from the limit groove 705 and continuously move to squeeze the second spring 704 inside the empty groove 703, and then pull one side of the placement box 702 to remove one end of the placement box 702 from the embedded groove 701, and then put a new desiccant bag into the placement box 702, and put the placement box 702 back to its original position.

[0039] Furthermore, one end of the placement box 702 is embedded in the embedding groove 701, and the second spring 704 is embedded in the empty groove 703. Through the setting of the placement box 702, when in use, the placement box 702 is used to place the drying bag, providing a storage space for the drying bag, ensuring that the drying bag can play a role in absorbing moisture at a specific position and protecting the wiring point from the influence of humid air.

[0040] Furthermore, one end of the pull rod 707 passes through the second spring 704 and is connected to the limit block 706. One end of the limit block 706 is consistent with the size of the limit groove 705. Through the setting of the limit block 706 and the pull rod 707, when in use, the limit block 706 connects the pull rod 707 and the second spring 704, and can achieve fixing and unlocking of the placement box 702 through cooperation with the limit groove 705 and under the action of the second spring 704, so as to facilitate the installation and disassembly of the placement box 702. The pull rod 707 connects the limit block 706 and the pull ring 708. When the pull ring 708 is pulled, the pull rod 707 drives the limit block 706 to move, thereby realizing the unlocking operation of the placement box 702.

[0041] Working principle: First, when the wiring at one side of the connection end 5 is moisture-proof, when the wiring is in a humid environment, the desiccant bag inside the placement box 702 will continuously absorb moisture in the surrounding air, so that the air around the wiring is in a dry state, thereby ensuring that the metal part of the wiring will not be easily corroded, effectively avoiding affecting the normal use of the inverter. When the desiccant bag needs to be replaced, the user pulls the pull ring 708, and then the pull ring 708 drives the pull rod 707 to move, and then the pull rod 707 drives the limit block 706 to disengage from the limit slot 705 and continuously move to squeeze the second spring 704 inside the empty slot 703, and then pull By moving one side of the placement box 702, one end of the placement box 702 can be taken out from the embedding groove 701, and then a new dry bag can be placed in the placement box 702, and the placement box 702 can be put back to its original position. Then, when a stone falls from the top of the inverter body 1, the stone first hits the dust shield 405, and then the dust shield 405 is driven by the force to move the connecting rod 404, and then the connecting rod 404 compresses the buffer spring 403 inside the second limiting groove 402. At this time, the buffer spring 403 inside the fixing column 401 buffers the impact force on the surface of the dust shield 405, thereby preventing the impact force from directly acting on the inverter body The inverter body 1 is protected, and then when the inverter body 1 is used, the air is first filtered by the second filter plate 306 and then sucked into the air outlet pipe 307 by the fan 303. Then, when the air passes through the support plate 310, most of the moisture inside it will adhere to the absorbent cotton 314. Then, the air after the moisture is absorbed will be adsorbed by the second drying mesh plate 311 again and enter the interior of the inverter body 1. Then, the hot air inside the inverter body 1 will be blown into the inverter body 1 and blown to its inner bottom. Then, the air mixed with hot air will be blown out of the inverter body 1 after passing through the first drying mesh plate 301 and the first filter plate 302. The inverter body 1 is cooled. When the absorbent cotton 314 absorbs too much moisture, the heating wire 313 can be started to dry it. After that, when the second filter plate 306 is blocked and cannot effectively facilitate subsequent heat dissipation, the user pushes one side of the push block 312, and then the push block 312 moves and squeezes the first spring 309 inside the first limiting groove 308. The first spring 309 is compressed and one end of the push block 312 is disengaged from the groove 304 on one side of the fixed shell 6. Then, the second filter plate 306 is pulled to remove the second filter plate 306 from the slide groove 305 for replacement or cleaning.

[0042] 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. A waterproof and moisture-proof frequency converter, comprising a frequency converter body (1), characterized in that: The surface of the inverter body (1) is connected to a sealing plate (2), a heat dissipation and waterproof mechanism (3) is provided inside the inverter body (1), a protection mechanism (4) is provided on one side of the surface of the inverter body (1), a connection end (5) is connected on one side of the surface of the inverter body (1), a fixing shell (6) is connected on one side of the surface of the inverter body (1), and a moisture-proof mechanism (7) is provided on one side of the surface of the connection end (5); The heat dissipation and waterproof mechanism (3) comprises a first drying mesh plate (301), a first filter plate (302), a fan (303), a slot (304), a slide groove (305), a second filter plate (306), an air outlet pipe (307), a first limit groove (308), a first spring (309), a support plate (310), a second drying mesh plate (311), a push block (312), a heating wire (313) and a water-absorbing cotton (314). The first drying mesh plate (301) is embedded on the inner side of the inverter body (1), the first filter plate (302) is embedded on one side of the surface of the inverter body (1), the fan (303) is installed inside the fixed shell (6), the slot (304) is provided on one side of the surface of the fixed shell (6), and the fixed shell (6) is provided with a second drying mesh plate (311). A sliding groove (305) is provided on one side of the surface of the fixed shell (6), a second filter plate (306) is embedded on one side of the surface of the fixed shell (6), one end of the fan (303) is sealed and connected to an air outlet pipe (307), a first limiting groove (308) is provided inside the second filter plate (306), a first spring (309) is embedded inside the second filter plate (306), a support plate (310) is embedded inside the air outlet pipe (307), a second drying screen plate (311) is embedded inside the air outlet pipe (307), one end of the first spring (309) is connected to a push block (312), the inner side of the support plate (310) is connected to an electric heating wire (313), and one side of the surface of the support plate (310) is connected to absorbent cotton (314).

2. The waterproof and moisture-proof inverter according to claim 1, characterized in that: One side of the surface of the first drying screen (301) is in contact with the inner wall of the inverter body (1), and the first filter plate (302) is in contact with the inner wall of the inverter body (1).

3. The waterproof and moisture-proof inverter according to claim 1, characterized in that: The first spring (309) is embedded in the first limiting groove (308), and one end of the fan (303) is sealedly connected to the fixed shell (6).

4. The waterproof and moisture-proof inverter according to claim 1, characterized in that: One end of the second filter plate (306) matches the size of the slide groove (305), one end of the push block (312) is embedded in the first limit groove (308), and the other end of the push block (312) matches the size of the groove (304).

5. The waterproof and moisture-proof inverter according to claim 1, characterized in that: The protective mechanism (4) comprises a fixed column (401), a second limiting groove (402), a buffer spring (403), a connecting rod (404) and a dust shield (405); one side of the surface of the inverter body (1) is connected to the fixed column (401); a second limiting groove (402) is provided inside the fixed column (401); a buffer spring (403) is embedded inside the fixed column (401); one end of the buffer spring (403) is connected to the connecting rod (404); and one end of the connecting rod (404) is connected to the dust shield (405).

6. The waterproof and moisture-proof inverter according to claim 5, characterized in that: The buffer spring (403) is embedded in the second limiting groove (402), and two groups of the buffer spring (403) are provided.

7. The waterproof and moisture-proof inverter according to claim 5, characterized in that: One end of the connecting rod (404) is embedded in the second limiting groove (402), and two groups of the connecting rods (404) are provided.

8. The waterproof and moisture-proof inverter according to claim 1, characterized in that: The moisture-proof mechanism (7) comprises an embedding groove (701), a placement box (702), an empty groove (703), a second spring (704), a limiting groove (705), a limiting block (706), a pull rod (707) and a pull ring (708); one side of the surface of the connecting end (5) is provided with an embedding groove (701); one side of the surface of the connecting end (5) is embedded with a placement box (702); one side of the surface of the connecting end (5) is provided with an empty groove (703); the inside of the connecting end (5) is embedded with a second spring (704); one side of the surface of the placement box (702) is provided with a limited groove (705); one end of the second spring (704) is connected to the limiting block (706); one side of the surface of the limiting block (706) is connected with a pull rod (707); one end of the pull rod (707) is connected to a pull ring (708).

9. The waterproof and moisture-proof inverter according to claim 8, characterized in that: One end of the placement box (702) is embedded in the embedding groove (701), and the second spring (704) is embedded in the empty groove (703).

10. The waterproof and moisture-proof inverter according to claim 8, characterized in that: One end of the pull rod (707) passes through the second spring (704) and is connected to the limit block (706), and one end of the limit block (706) matches the size of the limit groove (705).

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