Transformer with dustproof and moistureproof functions

Abstract

The invention relates to the technical field of transformers, and discloses a transformer with dustproof and moistureproof functions. Comprising a rotary dust removal mechanism, a variable-frequency heating and dehumidifying mechanism, an induction coil which is fixedly mounted in a second gas flowing cylinder and cooperates with a high-frequency current generator to generate an alternating magnetic field phenomenon, and a metal rod which is mounted in the center of the induction coil and generates a heating phenomenon after being influenced by the alternating magnetic field. According to the transformer with the dust-proof and moisture-proof functions, the dust-proof effect can be achieved on gas entering the transformer protection cabinet, the filter cover used for dust removal rotates at a high speed, the gas attached to the outer surface of the filter cover can be thrown away by centrifugal force, and therefore the normal working time efficiency of the filter cover is guaranteed; the device can perform a heating dehumidification effect on dedusted gas, so that humid gas is prevented from entering a transformer protection cabinet, the working environment of a transformer is improved, and the effective service life of the transformer is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and particularly to a transformer with dust and moisture protection functions. Background Art

[0002] Distribution transformers are one of the important devices in the power supply and distribution systems of industrial and mining enterprises and civil buildings. They step down the 10(6)kV or 35kV network voltage to the 230 / 400V bus voltage used by users. Such products are applicable to alternating current 50(60)Hz, with a maximum three-phase rated capacity of 2500kVA (the maximum single-phase rated capacity is 833kVA, and single-phase transformers are generally not recommended). They can be used indoors (outdoors). When the capacity is 315kVA and below, they can be installed on poles. The ambient temperature should not be higher than 40°C, not lower than 25°C, the highest daily average temperature is 30°C, the highest annual average temperature is 20°C, the relative humidity should not exceed 90% (at an ambient temperature of 25°C), and the altitude should not exceed 1000m. If the above usage conditions are not met, appropriate rating adjustments should be made according to the relevant provisions of GB6450-86. In recent years, the technology of dry-type transformers has developed rapidly, and their application environments have become more and more complex. For dry-type transformers operating in areas with high humidity and environments with high salt fog and dust, traditional dry-type transformers can no longer meet the requirements.

[0003] Therefore, the Chinese patent with the publication number "CN215600184U" discloses "a dust and moisture-proof dry-type transformer", whose main structure includes a bottom plate, lifting feet inserted into the four ends of the bottom plate, a support base fixedly connected to the lower ends of the lifting feet, a box body arranged on the upper end of the bottom plate, heat dissipation fans installed on both inner walls of the box body and driven by motors, a blower arranged below the bottom plate, an air inlet and an air outlet respectively connected to both ends of the blower, and a transformer coil arranged on the bottom plate and inside the box body. This dust and moisture-proof dry-type transformer can install the entire transformer device away from the ground to avoid direct contact between the transformer and the wet ground, thereby preventing the entire transformer from getting damp. At the same time, it can also discharge the dust accumulated in the box body through the blower, and the downward-facing air outlet can also prevent dust from entering the box body when the blower is not in use.

[0004] However, when the above-mentioned dust and moisture-proof dry-type transformer is actually working, since neither the air inlet nor the air outlet is dust-proof treated, it is easy for dust to enter, which affects the service life of the transformer. At the same time, the humid particles in the air will enter the inside of the box body along the air inlet, and it cannot dehumidify and moisture-proof the surrounding environment, still resulting in a reduced service life of the transformer. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a transformer with dust and moisture protection functions, which can achieve a dust-proof effect on the gas entering the transformer protection cabinet, and the filter cover for dust removal rotates at a high speed, enabling the dust attached to the outer surface of the filter cover to be thrown off by centrifugal force, thereby ensuring the normal working life of the filter cover. In addition, the device can perform a heating and dehumidifying effect on the gas after dust removal, thereby preventing moist gas from entering the transformer protection cabinet, improving the working environment of the transformer, and increasing the effective service life of the transformer, thus solving the above technical problems.

[0006] To achieve the above object, the present invention provides the following technical solution: A transformer with dust and moisture protection functions includes a transformer protection cabinet capable of installing a transformer body inside, a sealing cover plate covering the top of the transformer protection cabinet, a plurality of wire through-holes provided in the sealing cover plate, a component installation opening provided in the sealing cover plate, and an exhaust passage provided on the side of the transformer protection cabinet and connected to a fan, capable of discharging the gas inside the transformer protection cabinet to the outside. It further includes a rotary dust removal mechanism, which internally has a first gas flow cylinder installed inside the component installation opening and capable of rotating, a conical filter cover provided at the top of the first gas flow cylinder and capable of performing a filter dust removal effect on the flowing gas, a second gas flow channel installed at the bottom of the first gas flow cylinder and capable of rotating relative to the first gas flow cylinder, and a driving motor capable of driving the first gas flow cylinder to rotate; and a variable-frequency heating and dehumidifying mechanism, which internally has a second gas flow cylinder fixedly installed at the bottom of the second gas flow channel and having a hollow interior, an induction coil fixedly installed inside the second gas flow cylinder and cooperating with a high-frequency current generator to generate an alternating magnetic field phenomenon, and a metal rod installed at the center of the induction coil and generating a heating phenomenon when affected by the alternating magnetic field.

[0007] Preferably, during operation, the exhaust passage is docked with the air inlet of a fan.

[0008] Preferably, the rotary dust removal mechanism includes a first gas flow cylinder, a second gas flow channel, and a motor fixing base installed in the component installation port through bearings. A conical filter cover is fixedly installed at the top end of the first gas flow cylinder. A first gas flow chamber with an open bottom end is arranged inside the first gas flow cylinder. A plurality of dust filtering holes communicating the external space and the top end of the first gas flow chamber are arranged in the conical filter cover. The bottom end of the first gas flow cylinder is provided with a first gas flow channel integrally formed therewith and extending downward. A first gas flow hole with an open bottom end and a top end communicating with the bottom of the first gas flow chamber is arranged inside the first gas flow channel. A first pulley is fixedly installed in the middle of the outer circumferential surface of the first gas flow channel. A second gas flow chamber with open ends is arranged inside the second gas flow channel. The second gas flow channel is installed through bearings in the outer periphery of the bottom area of the first gas flow channel in the top area of the second gas flow chamber. The bottom end of the second gas flow channel is provided with a first docking plate integrally formed therewith. The top end of the motor fixing base is fixedly installed on the bottom surface of the sealing cover plate. A driving motor in an inverted state is fixedly installed inside the motor fixing base. A second pulley is fixedly installed at the end of the rotor of the driving motor. The second pulley and the first pulley are linked by a belt.

[0009] Preferably, the conical filter cover is of a conical structure with its tip pointing upward.

[0010] Preferably, the variable-frequency heating and dehumidifying mechanism includes a second gas flow cylinder. A third gas flow chamber is arranged in the center of the second gas flow cylinder. An annular component installation chamber is arranged outside the third gas flow chamber in the second gas flow cylinder. An induction coil is fixedly installed inside the second gas flow cylinder in the annular component installation chamber. A wiring column penetrating through the wall thickness of the second gas flow cylinder is fixedly installed at each end of the induction coil. The top end of the second gas flow cylinder is provided with a third gas flow channel integrally formed therewith and fixedly installed at the bottom end of the first docking plate. The internal structure of the third gas flow channel communicates the top end of the third gas flow chamber and the bottom end of the second gas flow chamber. The bottom end of the second gas flow cylinder is provided with a fourth gas flow channel integrally formed therewith and communicating with the bottom end of the third gas flow chamber. A metal rod is fixedly installed inside the second gas flow cylinder in the third gas flow chamber through an annular fixing bracket.

[0011] Preferably, the second gas flow cylinder and the annular fixing bracket are made of non-metallic materials. The metal rod is made of copper material with tip structures at both ends.

[0012] Preferably, during operation, the terminal is connected to the current output terminal of a high-frequency current generator through a wire, and the high-frequency current generator has the function of changing the direction and magnitude of the current.

[0013] Preferably, it further includes an adsorption drying mechanism, which internally has a desiccant storage housing fixedly installed at the bottom of the No. 4 gas flow channel and in a hollow state, and a placement plate detachably installed at the bottom opening end of the desiccant storage housing and capable of storing solid drying particles inside the desiccant storage housing.

[0014] Preferably, the adsorption drying mechanism includes a desiccant storage housing. A horizontal mounting frame is fixedly installed on the outer circumferential surface of the desiccant storage housing. One side of the horizontal mounting frame is fixedly installed at the inner wall of the transformer protection cabinet. The horizontal mounting frame internally has a desiccant storage cavity with an open bottom end. The top of the horizontal mounting frame has a No. 5 gas flow channel integrally formed with it and fixedly installed at the bottom end of the No. 4 gas flow channel. The internal structure of the No. 5 gas flow channel connects the internal structure of the No. 4 gas flow channel and the top of the desiccant storage cavity. A detachable placement plate is placed at the bottom of the horizontal mounting frame. Ventilation holes for gas flow are provided in the plate body of the placement plate.

[0015] Preferably, during operation, solid desiccant is stored inside the desiccant storage cavity, and the size of the solid desiccant is larger than the diameter of the ventilation holes.

[0016] Compared with the prior art, the present invention provides a transformer with dust and moisture protection functions, having the following beneficial effects:

[0017] It can achieve a dust-proof effect on the gas entering the transformer protection cabinet, and the filter cover for dust removal rotates at a high speed, enabling the substances attached to the outer surface of the filter cover to be thrown off by centrifugal force, thus ensuring the normal working life of the filter cover. In addition, the device can perform a heating and dehumidifying effect on the dust-removed gas, preventing moist gas from entering the transformer protection cabinet, improving the working environment of the transformer, and increasing the effective service life of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the present invention;

[0019] Figure 2 is a perspective sectional view of the present invention;

[0020] Figure 3 is a perspective view of the rotary dust removal mechanism in the present invention;

[0021] Figure 4 is a perspective sectional view of the rotary dust removal mechanism in the present invention;

[0022] Figure 5 is a perspective view of the variable-frequency heating and dehumidifying mechanism in the present invention;

[0023] Figure 6 is a perspective sectional view of the variable-frequency heating and dehumidifying mechanism in the present invention;

[0024] Figure 7 is a perspective view of the adsorption drying mechanism in the present invention;

[0025] Figure 8 is a perspective sectional view of the adsorption drying mechanism in the present invention.

[0026] Wherein: 1. Transformer body; 2. Transformer protection cabinet; 3. Sealing cover plate; 4. Wire perforation; 5. Component installation opening; 6. Exhaust passage; 7. Rotating dust removal mechanism; 71. First gas flow cylinder; 72. First gas flow chamber; 73. Conical filter cover; 74. Dust filter hole; 75. First pulley; 76. First gas flow channel; 77. Second gas flow channel; 78. Second gas flow chamber; 79. First docking plate; 710. First gas flow hole; 711. Motor fixing seat; 712. Driving motor; 713. Second pulley; 714. Belt; 8. Variable-frequency heating and dehumidifying mechanism; 81. Second gas flow cylinder; 82. Third gas flow chamber; 83. Annular component installation chamber; 84. Third gas flow channel; 85. Fourth gas flow channel; 86. Annular fixing bracket; 87. Metal rod; 88. Induction coil; 89. Terminal; 9. Adsorption drying mechanism; 91. Horizontal mounting frame; 92. Desiccant storage housing; 93. Fifth gas flow channel; 94. Desiccant storage chamber; 95. Placing plate; 96. Ventilation hole. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1 and Figure 2, A transformer with dust and moisture protection functions, including a transformer protection cabinet 2 inside which a transformer body 1 can be installed, a sealing cover plate 3 covering the top of the transformer protection cabinet 2, a plurality of wire through holes 4 provided in the sealing cover plate 3, a component installation opening 5 provided in the sealing cover plate 3, and an exhaust passage 6 provided on the side of the transformer protection cabinet 2 and connected to a fan, which can discharge the gas inside the transformer protection cabinet 2 to the outside. First, fix the transformer protection cabinet 2 to the working area, and then connect the wires used to connect to the transformer body 1 to the transformer body 1 through the wire through holes 4. During operation, the exhaust passage 6 is docked with the air inlet of a fan. The terminal 89 is connected to the current output terminal of a high-frequency current generator through a wire, and the high-frequency current generator has the function of changing the direction and magnitude of the current. The inside of the desiccant storage cavity 94 stores a solid desiccant, and the size of the solid desiccant is larger than the diameter of the ventilation hole 96.

[0029] To achieve the centrifugal dust removal effect, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a rotary dust removal mechanism 7 needs to be set up. Inside it, there is a first gas flow cylinder body 71 installed inside the component installation opening 5 and capable of rotating, a conical filter cover 73 provided at the top of the first gas flow cylinder body 71 and capable of performing a filtering dust removal effect on the flowing gas, a second gas flow channel 77 installed at the bottom of the first gas flow cylinder body 71 and capable of rotating relative to the first gas flow cylinder body 71, and a driving motor 712 capable of driving the first gas flow cylinder body 71 to rotate. When the driving motor 712 is started, the rotor will drive the second pulley 713 to rotate. Under the linkage action of the belt 714, it will drive the first pulley 75 and the first gas flow cylinder body 71 to rotate rapidly. After the fan is started, the gas will flow into the inside of the transformer protection cabinet 2 along the dust filtering holes 74. When the dust is blocked on the upper conical surface of the conical filter cover 73, at this time, the rotating conical filter cover 73 will throw out the solid dust particles attached to its surface, so as to ensure the cleanliness of the surface of the conical filter cover 73 and ensure the normal flow of gas and the dust removal function.

[0030] Regarding the specific structure of the rotary dust removal mechanism 7, please refer to Figure 3 and Figure 4, including a first gas flow cylinder body 71, a second gas flow channel 77 and a motor fixing seat 711 installed in the component installation port 5 through bearings. A conical filter cover 73 is fixedly installed at the top end of the first gas flow cylinder body 71. A first gas flow cavity 72 with an open bottom end is arranged inside the first gas flow cylinder body 71. A plurality of dust filtering holes 74 communicating the external space and the top end of the first gas flow cavity 72 are arranged in the conical filter cover 73. The bottom end of the first gas flow cylinder body 71 is provided with a first gas flow channel 76 which is integrally structured with it and extends downward. A first gas flow hole 710 with an open bottom end and a top end communicating with the bottom of the first gas flow cavity 72 is arranged inside the first gas flow channel 76. A first belt pulley 75 is fixedly installed in the middle of the outer circumferential surface of the first gas flow channel 76. A second gas flow cavity 78 with open ends is arranged inside the second gas flow channel 77. The second gas flow channel 77 is installed through bearings in the periphery of the bottom area of the first gas flow channel 76 in the top area of the second gas flow cavity 78. The bottom end of the second gas flow channel 77 is provided with a first docking plate 79 which is integrally structured with it. The top end of the motor fixing seat 711 is fixedly installed on the bottom surface of the sealing cover plate 3. A driving motor 712 in an inverted state is fixedly installed inside the motor fixing seat 711. A second belt pulley 713 is fixedly installed at the end of the rotor of the driving motor 712. The second belt pulley 713 and the first belt pulley 75 are linked by a belt 714. The conical filter cover 73 is of a conical structure, and the tip of this circular structure faces upward.

[0031] In order to achieve the heating and dehumidification effect on humid gas, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 , a variable-frequency heating and dehumidification mechanism 8 needs to be set. Inside it, there is a second gas flow cylinder body 81 fixedly installed at the bottom end of the second gas flow channel 77 and with a hollow interior, an induction coil 88 fixedly installed inside the second gas flow cylinder body 81 and cooperating with a high-frequency current generator to generate an alternating magnetic field phenomenon, and a metal rod 87 installed at the central part of the induction coil 88 and generating a heating phenomenon when affected by the alternating magnetic field. When the high-frequency current generator is turned on, at this time, current enters the induction coil 88, an alternating magnetic field is generated in the induction coil 88, and then eddy currents are excited in the metal rod 87. The eddy currents are converted into heat energy under the resistance action of the metal rod 87, and the metal rod 87 will generate a heating phenomenon. The flowing humid gas will pass near the metal rod 87 and will be heated and dehumidified by the high temperature of the metal rod 87, thereby achieving the heating and dehumidification effect on the humid gas.

[0032] Regarding the specific structure of the variable-frequency heating and dehumidification mechanism 8, please refer to Figure 5 andFigure 6 It includes a second gas flow cylinder body 81. A third gas flow cavity 82 is provided at the center of the second gas flow cylinder body 81. An annular component installation cavity 83 is provided outside the third gas flow cavity 82 of the second gas flow cylinder body 81. An induction coil 88 is fixedly installed inside the annular component installation cavity 83 of the second gas flow cylinder body 81. A wiring terminal 89 penetrating through the wall thickness of the second gas flow cylinder body 81 is fixedly installed at both ends of the induction coil 88. The top of the second gas flow cylinder body 81 is provided with a third gas flow channel 84 which is of an integral structure with it and fixedly installed at the bottom end of the first docking plate 79, and the internal structure of the third gas flow channel 84 communicates with the top end of the third gas flow cavity 82 and the bottom end of the second gas flow cavity 78. The bottom of the second gas flow cylinder body 81 is provided with a fourth gas flow channel 85 which is of an integral structure with it and communicates with the bottom end of the third gas flow cavity 82. A metal rod 87 is fixedly installed inside the third gas flow cavity 82 of the second gas flow cylinder body 81 through an annular fixing bracket 86. The second gas flow cylinder body 81 and the annular fixing bracket 86 are made of non-metallic materials, and the metal rod 86 is made of copper material and has tip structures at both ends.

[0033] In order to further improve the drying ability of the gas, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 An adsorption drying mechanism 9 needs to be provided. Inside it, a desiccant storage outer shell 92 which is fixedly installed at the bottom of the fourth gas flow channel 85 and is hollow inside, and a placement plate 95 which is detachably installed at the bottom opening end of the desiccant storage outer shell 92 and can store solid drying particles inside the desiccant storage outer shell 92 are provided. Open the placement plate 95, pour the solid desiccant into the interior of the desiccant storage cavity 94, and then install the placement plate 95 at the bottom of the desiccant storage outer shell 92. When the gas passes through the interior of the desiccant storage cavity 94, the moist gas is absorbed by the solid desiccant, thereby further improving the drying ability of the gas. And the high-temperature flowing gas can dehumidify the moist solid desiccant, ensuring the effective working duration of the solid desiccant.

[0034] Regarding the specific structure of the adsorption drying mechanism 9, please refer to Figure 7 and Figure 8, including a desiccant storage housing 92. A horizontal mounting frame 91 is fixedly installed on the outer circumferential surface of the desiccant storage housing 92. One side of the horizontal mounting frame 91 is fixedly installed at the inner wall of the transformer protection cabinet 2. A desiccant storage cavity 94 with an open bottom is provided inside the horizontal mounting frame 91. At the top of the horizontal mounting frame 91, there is a fifth gas flow channel 93 which is integrally structured with it and fixedly installed at the bottom end of the fourth gas flow channel 85. The internal structure of the fifth gas flow channel 93 communicates with the internal structure of the fourth gas flow channel 85 and the top end of the desiccant storage cavity 94. A detachable storage plate 95 is placed at the bottom end of the horizontal mounting frame 91. Vent holes 96 for gas flow are provided in the plate body of the storage plate 95.

[0035] During use, first, the transformer protection cabinet 2 is fixedly installed in the working area. Then, the wires used to connect to the transformer body 1 are connected to the transformer body 1 through the wire perforation holes 4. During operation, the exhaust channel 6 is docked with the air inlet of a fan. The terminal block 89 is connected to the current output end of a high-frequency current generator through a wire, and this high-frequency current generator has the function of changing the direction and magnitude of the current. Solid desiccant is stored inside the desiccant storage cavity 94, and the size of the solid desiccant is larger than the diameter of the vent holes 96. When the drive motor 712 is started, the rotor will drive the second pulley 713 to rotate. Under the linkage action of the belt 714, it will drive the first pulley 75 and the first gas flow cylinder 71 to rotate rapidly. After the fan is started, the gas will flow into the inside of the transformer protection cabinet 2 along the dust filtering holes 74. When the dust is blocked on the upper conical surface of the conical filter cover 73, at this time, the rotating conical filter cover 73 will throw out the solid dust particles attached to its surface. When the high-frequency current generator is turned on, at this time, the current enters the induction coil 88, and an alternating magnetic field is generated in the induction coil 88. Then, eddy currents are excited in the metal rod 87. The eddy currents are converted into heat energy under the resistance of the metal rod 87, and the metal rod 87 will generate a heating phenomenon. The flowing humid gas will pass near the metal rod 87 and will be heated and dehumidified by the high temperature of the metal rod 87, thus realizing the heating-type dehumidification effect on the humid gas.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer with dust and moisture proof functions, comprising a transformer protection cabinet (2) in which a transformer body (1) can be installed, a sealing cover plate (3) covering the top of the transformer protection cabinet (2), a plurality of wire through holes (4) arranged in the sealing cover plate (3), a component installation port (5) arranged in the sealing cover plate (3), and an exhaust passage (6) arranged on the side of the transformer protection cabinet (2) and connected to a fan so that the gas inside the transformer protection cabinet (2) can be discharged to the outside, characterized in that: Also includes, A rotary dust removal mechanism (7) is provided with a first gas flow cylinder (71) installed inside the component installation opening (5) and capable of rotating, a conical filter cover (73) installed at the top of the first gas flow cylinder (71) and capable of filtering and removing dust from the flowing gas, a second gas flow channel (77) installed at the bottom of the first gas flow cylinder (71) and capable of rotating relative to the first gas flow cylinder (71), and a drive motor (712) capable of driving the first gas flow cylinder (71) to rotate; And a variable frequency heating and dehumidification mechanism (8), which is provided with a second gas flow cylinder (81) fixedly installed at the bottom end of the second gas flow channel (77) and having a hollow interior, an induction coil (88) fixedly installed inside the second gas flow cylinder (81) and cooperating with a high-frequency current generator to generate an alternating magnetic field phenomenon, and a metal rod (87) installed at the center of the induction coil (88) and generating a heating phenomenon when affected by the alternating magnetic field.

2. The transformer with dust and moisture proof function according to claim 1, characterized in that: When in operation, the exhaust passage (6) is connected to the air inlet of a fan.

3. The transformer with dust and moisture proof function according to claim 2, characterized in that: The rotary dust removal mechanism (7) comprises a No. 1 gas flow cylinder (71) installed in the component installation port (5) through a bearing, a No. 2 gas flow channel (77) and a motor fixing seat (711); a conical filter cover (73) is fixedly installed on the top of the No. 1 gas flow cylinder (71); a No. 1 gas flow cavity (72) with an open bottom is arranged inside the No. 1 gas flow cylinder (71); a plurality of dust filter holes (74) connecting the external space and the top of the No. 1 gas flow cavity (72) are arranged in the conical filter cover (73); a No. 1 gas flow channel (76) which is an integral structure with the No. 1 gas flow cylinder (71) and extends downward is arranged at the bottom of the No. 1 gas flow cylinder (71); a No. 1 gas flow hole (710) with an open bottom and a top connected to the bottom of the No. 1 gas flow cavity (72) is arranged inside the No. 1 gas flow channel (76); A first pulley (75) is fixedly installed on the middle part of the outer circumferential surface of the gas flow channel (76); a second gas flow cavity (78) with two ends in an open state is arranged inside the second gas flow channel (77); the second gas flow channel (77) is installed on the periphery of the bottom area of ​​the first gas flow channel (76) through a bearing in the top area of ​​the second gas flow cavity (78); a first docking plate (79) with an integral structure therewith is arranged at the bottom end of the second gas flow channel (77); the top end of the motor fixing seat (711) is fixedly installed on the bottom surface of the sealing cover plate (3); a driving motor (712) in an inverted state is fixedly installed inside the motor fixing seat (711); a second pulley (713) is fixedly installed on the rotor end of the driving motor (712); the second pulley (713) and the first pulley (75) are linked by a belt (714).

4. The transformer with dust and moisture proof function according to claim 3, characterized in that: The conical filter cover (73) is a conical structure, and the tip of the circular structure faces upward.

5. The transformer with dust and moisture proof function according to claim 4, characterized in that: The variable frequency heating and dehumidifying mechanism (8) comprises a No. 2 gas flow cylinder (81), a No. 3 gas flow cavity (82) is arranged at the center of the No. 2 gas flow cylinder (81), an annular component installation cavity (83) is arranged on the periphery of the No. 3 gas flow cavity (82) of the No. 2 gas flow cylinder (81), an induction coil (88) is fixedly installed inside the annular component installation cavity (83) of the No. 2 gas flow cylinder (81), and a terminal (89) penetrating the wall thickness of the No. 2 gas flow cylinder (81) is fixedly installed at both ends of the induction coil (88). 1) is provided with a No. 3 gas flow channel (84) which is an integral structure with the No. 3 gas flow chamber (82) and fixedly mounted on the bottom of the No. 1 docking plate (79) at the top, and the internal structure of the No. 3 gas flow channel (84) is connected to the top of the No. 3 gas flow chamber (82) and the bottom of the No. 2 gas flow chamber (78), and the bottom of the No. 2 gas flow cylinder (81) is provided with a No. 4 gas flow channel (85) which is an integral structure with the No. 3 gas flow chamber (82) and is connected to the bottom of the No. 3 gas flow chamber (82), and the No. 2 gas flow cylinder (81) is fixedly mounted with a metal rod (87) inside the No. 3 gas flow chamber (82) through an annular fixing bracket (86).

6. The transformer with dust and moisture proof function according to claim 5, characterized in that: The No. 2 gas flow cylinder (81) and the annular fixing bracket (86) are made of non-metallic materials, and the metal rod (86) is made of copper material and has pointed structures at both ends.

7. The transformer with dust and moisture proof function according to claim 6, characterized in that: When working, the terminal (89) is connected to the current output end of a high-frequency current generator through a wire, and the high-frequency current generator has the function of changing the direction and magnitude of the current.

8. The transformer with dust and moisture proof function according to claim 7, characterized in that: It also includes an adsorption drying mechanism (9), which is provided with a desiccant storage shell (92) fixedly mounted at the bottom of the fourth gas flow channel (85) and having a hollow interior, and a storage plate (95) detachably mounted at the bottom open end of the desiccant storage shell (92) and capable of storing solid dry particles inside the desiccant storage shell (92).

9. The transformer with dust and moisture proof function according to claim 8, characterized in that: The adsorption drying mechanism (9) comprises a desiccant storage shell (92), a horizontal mounting frame (91) is fixedly mounted on the outer circumferential surface of the desiccant storage shell (92), one side of the horizontal mounting frame (91) is fixedly mounted on the inner wall of the transformer protection cabinet (2), a desiccant storage chamber (94) with an open bottom is arranged inside the horizontal mounting frame (91), a No. 5 gas flow channel (93) is arranged at the top end of the horizontal mounting frame (91), the No. 5 gas flow channel (93) is integrally structured with the horizontal mounting frame (91) and fixedly mounted at the bottom end of the No. 4 gas flow channel (85), the internal structure of the No. 5 gas flow channel (93) is connected to the internal structure of the No. 4 gas flow channel (85) and the top end of the desiccant storage chamber (94), and a detachable storage plate (95) is placed at the bottom end of the horizontal mounting frame (91), and a vent hole (96) for gas flow is arranged in the plate body of the storage plate (95).

10. The transformer with dust and moisture proof function according to claim 9, characterized in that: When in operation, the desiccant storage chamber (94) stores solid desiccant, and the size of the solid desiccant is larger than the caliber of the vent hole (96).

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