A self-cooling permanent magnet high-speed fan

Abstract

The invention discloses a self-cooling permanent magnet high-speed fan, including a dual-axis permanent magnet motor, a wind hood is arranged on the outer surface of the dual-axis permanent magnet motor, one end of the wind hood is fixedly connected with a mesh cover, and the output end of the wind hood is transmission-connected with a fan body, and the invention relates to the technical field of permanent magnet high-speed fans. The self-cooling permanent magnet high-speed fan, through the setting of an uninterrupted water absorption mechanism, is convenient to realize automatic water pumping by utilizing the kinetic energy of the dual-axis permanent magnet motor when working, can replace the traditional water pumping, and realize automatic delivery of cooling water by utilizing the kinetic energy of the dual-axis permanent magnet motor, effectively reducing the use cost, and can realize heat dissipation by combining air cooling and water cooling with simple contact transfer cooling, improve heat dissipation efficiency, have a higher degree of automation, and have a higher linkage between various mechanisms. The dual-axis permanent magnet motor can realize heat dissipation when working, and the dual-axis permanent magnet motor automatically stops running when the uninterrupted water absorption mechanism is closed, and the whole process can be realized by only the dual-axis permanent magnet motor providing power.

Description

Technical Field

[0001] The invention relates to the technical field of permanent magnet high-speed blowers, in particular to a self-cooling permanent magnet high-speed blower. Background Art

[0002] Permanent magnet high-speed fans have the characteristics of high speed and high heat generation. When ordinary permanent magnet high-speed motors are working, the heat generated by the motor is difficult to be quickly dissipated by relying solely on the heat dissipation performance of its own materials, which often leads to abnormal use of the dual-axis permanent magnet motor. The load of the dual-axis permanent magnet motor increases, resulting in unstable speed of the fan and reduced air volume. The normal operation of the fan is greatly affected by the heat dissipation capacity of the dual-axis permanent magnet motor itself, and the ordinary dual-axis permanent magnet motor does not have a fast heat dissipation device. According to the patent announcement "CN115566840A", the name is "A self-cooling permanent magnet high-speed fan", the self-cooling permanent magnet high-speed fan can dissipate heat from the wind through four U-shaped tubes. Air is drawn from the hood, and the outside air enters the hood after being filtered through the mesh cover, and then enters the fan body. Cooling water flows in the spiral cooling pipe, and the air in the hood is evenly cooled through the heat dissipation fins, thereby realizing the cooling of the dual-axis permanent magnet motor. In actual use, an external water pump is required to transport cooling water to the spiral cooling pipe to cooperate with the cooling operation, which is not convenient for utilizing the kinetic energy of the dual-axis permanent magnet motor to realize automatic delivery of cooling water. Its use cost is relatively high, and it only transfers cooling through simple contact, and the cooling efficiency is subject to certain limitations. Therefore, the present invention proposes a self-cooling permanent magnet high-speed fan to solve the above-mentioned problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a self-cooling permanent magnet high-speed blower, which solves the problems mentioned in the above background technology.

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: a self-cooling permanent magnet high-speed fan, including a dual-axis permanent magnet motor, a wind cover is arranged on the outer surface of the dual-axis permanent magnet motor, one end of the wind cover is fixedly connected to a mesh cover, the output end of the wind cover is drivingly connected to a fan body, the air inlet of the fan body is connected to a connecting sleeve, the surface of the connecting sleeve is connected and fixed with a U-shaped tube all around, one end of the U-shaped tube is connected to the wind cover, the dual-axis permanent magnet motor is fixed to the inner wall of the wind cover by a fixing rod, and a first mounting seat is fixed below the fan body. A second mounting seat is fixed below the wind cover, a concave shaft is fixed to one output end of the dual-axis permanent magnet motor, the end of the concave shaft drives the fan body to work, a plurality of evenly distributed cooling fins are fixed to the surface of the dual-axis permanent magnet motor, a spiral heat pipe is fixed through the surfaces of the plurality of cooling fins, an uninterrupted water absorption mechanism is arranged between the concave shaft and the wind cover, the uninterrupted water absorption mechanism is used to transport cooling water to the spiral heat pipe, and a self-cleaning mechanism for cleaning dust in the mesh of the mesh cover is arranged between the output shaft of the dual-axis permanent magnet motor and the mesh cover.

[0005] Preferably, the uninterrupted water absorption mechanism includes a mounting plate fixed on the surface of the wind hood, wherein two symmetrically distributed driving cylinders are passed through and fixed on the mounting plate, the rear of the two driving cylinders are connected with a water absorption hose, the inner walls of the two driving cylinders are fixed with rear locking plates, the two rear locking plates are penetrated with rear water inlet circular grooves, the front of the two rear locking plates are rotatably installed with rear sealing covers through the front rotating shaft, the inner walls of the two driving cylinders are slidably installed with front movable plates, the two front movable plates are penetrated with front water inlet circular grooves, the front of the two front movable plates are rotatably installed with front sealing covers through the rear rotating shaft, the surfaces of the two driving cylinders are connected by a water outlet transverse pipe, the surface of the water outlet transverse pipe is connected with a delivery pipe, one end of the delivery pipe is connected with the surface of the spiral heat conducting pipe, the inner side of the surface of the spiral heat conducting pipe is connected with multiple atomizing nozzles, and the mounting plate is provided with a staggered component for controlling the back and forth staggered movement of the two front movable plates.

[0006] Preferably, the staggered assembly includes a support bar fixed in front of the mounting plate, a tilting bar is rotatably mounted on the support bar, rotating bars are rotatably mounted on both sides of the tilting bar surface, driving rods are fixed in front of the two front movable disks through V-shaped rods, the driving rods slide through in front of the driving cylinder, adjacent driving rods are rotatably connected to the rotating bars, a pulling block is rotatably mounted on the surface of the tilting bar, a ring is fixed at one end of the pulling block, and the ring is rotatably mounted on the surface of the concave shaft.

[0007] Preferably, the surfaces of the front rotating shaft and the rear rotating shaft are both sleeved with return torsion springs, and the return torsion springs are used for rapid return of the rear sealing cover and the front sealing cover.

[0008] Preferably, the rear sealing cover and the front sealing cover are both provided with a pair of sealing rings, and the sealing rings are used to improve the sealing performance between the rear sealing cover, the front sealing cover and the rear water inlet circular groove and the front water inlet circular groove.

[0009] Preferably, the spiral heat-conducting pipe is a copper pipe, the surface of which is coated with a graphene coating.

[0010] Preferably, both ends of the spiral heat pipe are designed to be closed, and the water mist sprayed by the atomizing nozzle can cover the entire surface of the dual-axis permanent magnet motor.

[0011] Preferably, the self-cleaning mechanism includes a connecting rod slidably mounted on the surface of the output shaft of the dual-axis permanent magnet motor, electric telescopic rods are fixed above and below the inner wall of the mesh cover, a rotating ring is rotatably mounted between the ends of the two electric telescopic rods, one end of the connecting rod is fixed to the inner wall of the rotating ring, a roller is rotatably passed through the rotating ring, contact bristles are fixed to the surface of the roller, and a fitting friction roller that fits the inner wall of the mesh cover is fixed to the surface of the roller.

[0012] Beneficial Effects

[0013] The present invention provides a self-cooling permanent magnet high-speed fan. Compared with the prior art, it has the following beneficial effects:

[0014] The self-cooling permanent magnet high-speed fan, through the setting of an uninterrupted water absorption mechanism, can utilize the kinetic energy of the dual-axis permanent magnet motor when it is working to realize automatic water pumping, and can replace the traditional water pump to pump water, and utilize the kinetic energy of the dual-axis permanent magnet motor to realize automatic delivery of cooling water, effectively reducing the cost of use. Compared with simple contact transfer cooling, it can realize the heat dissipation by combining air cooling and water cooling, improve the heat dissipation efficiency, have a higher degree of automation, and have a higher linkage between various mechanisms. The dual-axis permanent magnet motor can realize heat dissipation when it is working, and the uninterrupted water absorption mechanism of the dual-axis permanent magnet motor automatically stops running. The whole process can be realized by the power provided by the dual-axis permanent magnet motor. The contact bristles can rotate around the output shaft of the dual-axis permanent magnet motor as a whole, and can rotate with the roller at the same time, and can also realize left and right back and forth movement, so as to clean the dust in the mesh of the mesh cover without affecting the air intake. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the external structure of the wind shield of the present invention;

[0017] Figure 3 It is a schematic diagram of the connection between the uninterrupted water absorption mechanism of the present invention and the concave shaft;

[0018] Figure 4 This is a schematic diagram of the connection between two driving cylinders of the present invention;

[0019] Figure 5 It is a left side view of the wind shield structure of the present invention;

[0020] Figure 6 This is a schematic diagram of the internal structure of the driving cylinder of the present invention;

[0021] Figure 7 It is a right side view of the wind shield structure of the present invention;

[0022] Figure 8 It is a schematic diagram of the connection between the V-shaped rod and the driving rod of the present invention.

[0023] In the figure: 1-dual-axis permanent magnet motor, 2-wind cover, 3-mesh cover, 4-fan body, 5-connecting sleeve, 6-U-shaped pipe, 7-fixing rod, 8-first mounting seat, 9-uninterrupted water absorption mechanism, 91-mounting plate, 92-driving cylinder, 93-water absorption hose, 94-rear locking plate, 95-rear water inlet groove, 96-front rotating shaft, 97-rear sealing cover, 98-front movable plate, 99-front water inlet groove, 910-rear rotating shaft, 911-front sealing cover, 912-water outlet horizontal pipe, 913-delivery pipe, 914-atomizing nozzle, 915- Staggered assembly, 9151-support bar, 9152-tilt bar, 9153-rotation bar, 9154-V-rod, 9155-drive rod, 9156-pull block, 9157-ring, 10-second mounting seat, 11-concave shaft, 12-heat sinking fins, 13-spiral heat pipe, 14-reset torsion spring, 15-air inlet, 16-air outlet, 17-self-cleaning mechanism, 171-connecting rod, 172-electric telescopic rod, 173-rotation ring, 174-roller, 175-contact bristles, 176-fitting friction roller. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 6 The present invention provides two technical solutions: specifically including the following embodiments:

[0026] Example 1

[0027] A self-cooling permanent magnet high-speed fan comprises a dual-axis permanent magnet motor 1, the output shaft of the dual-axis permanent magnet motor 1 runs through the entire motor housing, a wind hood 2 is arranged on the outer surface of the dual-axis permanent magnet motor 1, one end of the wind hood 2 is fixedly connected to a mesh cover 3, the output end of the wind hood 2 is drivingly connected to a fan body 4, the fan body 4 has a certain waterproof performance, an air inlet 15 of the fan body 4 is connected to a connecting sleeve 5, an air outlet 16 is also arranged on the fan body 4, a U-shaped tube 6 is connected and fixed to the surface of the connecting sleeve 5 on all sides, one end of the U-shaped tube 6 is connected to the wind hood 2, the dual-axis permanent magnet motor 1 is fixed to the inner wall of the wind hood 2 by a fixing rod 7, a first mounting seat 8 is fixed below the fan body 4, a second mounting seat 10 is fixed below the wind hood 2, and the dual-axis permanent magnet motor A concave shaft 11 is fixed at one output end of 1, and the end of the concave shaft 11 drives the fan body 4 to work. A plurality of evenly distributed heat dissipation fins 12 are fixed on the surface of the dual-axis permanent magnet motor 1. The heat dissipation fins 12 are used to absorb the heat on the surface of the dual-axis permanent magnet motor 1. A spiral heat-conducting pipe 13 is fixed between the surfaces of the plurality of heat dissipation fins 12. The spiral heat-conducting pipe 13 passes through the plurality of heat dissipation fins 12 and is used to absorb the heat on the surface of the heat dissipation fin 12. An uninterrupted water absorption mechanism 9 is arranged between the concave shaft 11 and the wind cover 2. The uninterrupted water absorption mechanism 9 is used to transport cooling water to the spiral heat-conducting pipe 13. A self-cleaning mechanism 17 for cleaning dust in the mesh of the mesh cover 3 is arranged between the output shaft of the dual-axis permanent magnet motor 1 and the mesh cover 3.

[0028] The uninterrupted water absorption mechanism 9 includes a mounting plate 91 fixed on the surface of the wind hood 2, and two symmetrically distributed driving cylinders 92 are fixed on the mounting plate 91. The rear of the two driving cylinders 92 is connected with a water absorption hose 93, and the water absorption hose 93 is connected to the external water tank. The inner walls of the two driving cylinders 92 are fixed with rear locking plates 94, and the two rear locking plates 94 are penetrated with a rear water inlet groove 95. The front of the two rear locking plates 94 is rotatably installed with a rear sealing cover 97 through a front rotating shaft 96. The rear sealing cover 97 is used to seal or open the rear water inlet groove 95, and can only be reset after being flipped forward. The inner walls of the two driving cylinders 92 are A front movable disk 98 is slidably installed, and a forward water circular groove 99 is penetrated on the two front movable disks 98. A front sealing cover 911 is rotatably installed in front of the two front movable disks 98 through the rear rotating shaft 910. The front sealing cover 911 is used to seal or open the forward water circular groove 99, and can only be reset after being flipped forward. The surfaces of the two driving cylinders 92 are connected through a water outlet transverse pipe 912. The surface of the water outlet transverse pipe 912 is connected to a delivery pipe 913. One end of the delivery pipe 913 is connected to the surface of the spiral heat conduction pipe 13. An interlaced component 915 for controlling the front and rear interlaced movement of the two front movable disks 98 is provided on the mounting plate 91.

[0029] In this embodiment, the staggered assembly 915 includes a support bar 9151 fixed in front of the mounting plate 91, and a tilting bar 9152 is rotatably installed on the support bar 9151. Rotating bars 9153 are rotatably installed on both sides of the surface of the tilting bar 9152. A driving rod 9155 is fixed in front of the two front movable plates 98 through a V-shaped rod 9154. The driving rod 9155 slides through the front of the driving cylinder 92. Adjacent driving rods 9155 are rotatably connected with the rotating bar 9153. A pulling block 9156 is rotatably installed on the surface of the tilting bar 9152. A ring 9157 is fixed at one end of the pulling block 9156. The ring 9157 is rotatably installed on the surface of the concave shaft 11. A sealing ring is provided at the contact between the driving rod 9155 and the driving cylinder 92 to improve the sealing between the driving rod 9155 and the driving cylinder 92.

[0030] In this embodiment, the surfaces of the front rotating shaft 96 and the rear rotating shaft 910 are both sleeved with a return torsion spring 14, which is used for the rapid return of the rear sealing cover 97 and the front sealing cover 911. One end of the return torsion spring 14 on the front rotating shaft 96 is fixed to the front movable disk 98, and the other end is fixed to the front sealing cover 911. After the front sealing cover 911 is opened, the return torsion spring 14 can be set to facilitate its rapid return.

[0031] In this embodiment, sealing rings are provided on the rear sealing cover 97 and the front sealing cover 911, which are not shown in the drawings. The sealing rings are used to improve the sealing between the rear sealing cover 97, the front sealing cover 911 and the rear water inlet circular groove 95 and the front water inlet circular groove 99 to prevent the rear sealing cover 97 and the rear water inlet circular groove 95, and the front sealing cover 911 and the front water inlet circular groove 99 from contacting and leaking.

[0032] In this embodiment, the spiral heat pipe 13 is a copper pipe with a graphene coating on its surface. The copper pipe itself has good thermal conductivity, and the strong thermal conductivity of graphene is used to achieve efficient heat absorption. One end of the spiral heat pipe 13 is connected to an external water pipe, and drainage is carried out through an opening at one end, so that water flows and contacts to carry away heat.

[0033] In this embodiment, the self-cleaning mechanism 17 includes a connecting rod 171 slidably mounted on the surface of the output shaft of the dual-axis permanent magnet motor 1, and the connecting rod 171 can slide left and right on the surface of the output shaft of the dual-axis permanent magnet motor 1. Electric telescopic rods 172 are fixed above and below the inner wall of the mesh cover 3. The electric telescopic rod 172 is electrically connected to the external power supply and controlled by the control switch. A rotating ring 173 is rotatably mounted between the ends of the two electric telescopic rods 172. One end of the connecting rod 171 is fixed to the inner wall of the rotating ring 173. A roller 174 is rotatably passed through the rotating ring 173. A contact bristle 175 is fixed on the surface of the roller 174. The contact bristle 175 can be embedded in The mesh holes of the mesh cover 3 are brushed off with dust, and a fitting friction roller 176 that fits the inner wall of the mesh cover 3 is fixed on the surface of the roller 174. During the operation of the dual-axis permanent magnet motor 1, the connecting rod 171 is driven to rotate, thereby driving the fitting friction roller 176 to fit the inner wall of the mesh cover 3 as a whole and rotate. At the same time, the electric telescopic rod 172 continuously reciprocates and retracts, thereby controlling the rotating ring 173 to continuously move left and right, so that the entire roller 174 can move back and forth left and right on the inner wall of the mesh cover 3, and then the contact bristles 175 can also move back and forth left and right while rotating with the roller 174, so that the dust in the mesh holes of the mesh cover 3 can be cleaned without affecting the air intake.

[0034] Example 2

[0035] The difference from Example 1 is that the inner side of the surface of the spiral heat pipe 13 is connected to a plurality of atomizing nozzles 914, which are used to atomize the sprayed water. The atomized small water droplets are scattered on the dual-axis permanent magnet motor 1, which are used for heat dissipation of the dual-axis permanent magnet motor 1. The water mist sprayed by the atomizing nozzle 914 can cover the entire surface of the dual-axis permanent magnet motor 1. Both ends of the spiral heat pipe 13 adopt a closed design, so that water can only be sprayed out through the atomizing nozzle 914, and the exterior of the dual-axis permanent magnet motor 1 has a certain waterproof performance.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] During operation, the dual-axis permanent magnet motor 1 is fixedly installed in the wind cover 2, and the output end of the dual-axis permanent magnet motor 1 drives the impeller in the fan body 4 to rotate through the concave shaft 11, and then the fan body 2 draws air from the outside through the air inlet 15 and discharges it through the air outlet 16, so that a part of the outside air enters the wind cover 2 after being filtered by the mesh cover 3, and then enters the fan body 2, so as to realize the heat dissipation of the dual-axis permanent magnet motor 1. In the process of rotation of the concave shaft 11, the two driving rods 9155 will be driven to slide back and forth alternately through the collar 9157, the pulling block 9156 and the tilting bar 9152. When the left driving rod 9155 moves forward, the right driving rod 9155 moves backward, thereby making the left front movable disk 98 move forward. Under the action of negative pressure, the left rear sealing cover 97 flips forward, so that the water in the external water tank is sucked in through the front movable disk 98, and the left When the side driving rod 9155 moves backward, the left rear sealing cover 97 is quickly reset and closed, so that the water entering between the rear locking disk 94 and the front movable disk 98 pushes the front sealing cover 911 open, and the water flows into the water outlet transverse pipe 912. At this time, the right driving rod 9155 moves forward, thereby causing the right side front movable disk 98 to move forward. Under the action of negative pressure, the right rear sealing cover 97 flips forward, thereby causing the water in the external water tank to be sucked in through the front movable disk 98. The above operations are repeated in this way to achieve uninterrupted water inflow into the water outlet transverse pipe 912 to form a water flow. The water flow enters the spiral heat conduction pipe 13 through the delivery pipe 913, and the heat on the surface of the cooling fin 12 is taken away by the water flow. At the same time, the water mist sprayed by the atomizing nozzle 914 is scattered on the surface of the dual-axis permanent magnet motor 1, and enters the wind cover 2 with the help of the outside air, so as to achieve the heat dissipation combined with air cooling and water cooling, which can achieve efficient heat dissipation.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] 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 self-cooling permanent magnet high-speed fan, comprising a dual-axis permanent magnet motor (1), wherein the outer surface of the dual-axis permanent magnet motor (1) is provided with a wind cover (2), one end of the wind cover (2) is fixedly connected to a mesh cover (3), the output end of the wind cover (2) is drivingly connected to a fan body (4), the air inlet (15) of the fan body (4) is connected to a connecting sleeve (5), the surface of the connecting sleeve (5) is connected and fixed with a U-shaped tube (6) on all sides, one end of the U-shaped tube (6) is connected to the wind cover (2), and the characteristics are: The dual-axis permanent magnet motor (1) is fixed to the inner wall of the wind cover (2) through a fixing rod (7); a first mounting seat (8) is fixed below the fan body (4); a second mounting seat (10) is fixed below the fan cover (2); a concave shaft (11) is fixed to the output end of the dual-axis permanent magnet motor (1); the end of the concave shaft (11) drives the fan body (4) to work; a plurality of evenly distributed heat dissipation fins (12) are fixed to the surface of the dual-axis permanent magnet motor (1); a spiral heat conduction pipe (13) is fixed through the surfaces of the plurality of heat dissipation fins (12); an uninterrupted water absorption mechanism (9) is provided between the concave shaft (11) and the wind cover (2); the uninterrupted water absorption mechanism (9) is used to transport cooling water to the spiral heat conduction pipe (13); and a self-cleaning mechanism (17) for cleaning dust in the mesh of the mesh cover (3) is provided between the output shaft of the dual-axis permanent magnet motor (1) and the mesh cover (3).

2. A self-cooling permanent magnet high-speed blower according to claim 1, characterized in that: The uninterrupted water absorption mechanism (9) comprises a mounting plate (91) fixed on the surface of the wind cover (2), two symmetrically distributed driving cylinders (92) are fixed through the mounting plate (91), the rear of the two driving cylinders (92) are connected to a water absorption hose (93), the inner walls of the two driving cylinders (92) are fixed with a rear locking disk (94), the two rear locking disks (94) are penetrated with a rear water inlet circular groove (95), the front of the two rear locking disks (94) are rotatably mounted with a rear sealing cover (97) through a front rotating shaft (96), the inner walls of the two driving cylinders (92) are slidably mounted with a front movable disk (98), and the two front movable disks (98) are slidably mounted on the inner walls of the two driving cylinders (92). A forward water circular groove (99) is formed through the disk (98); a front sealing cover (911) is rotatably installed in front of the two front movable disks (98) via a rear rotating shaft (910); the surfaces of the two driving cylinders (92) are connected via a water outlet transverse pipe (912); the surface of the water outlet transverse pipe (912) is connected to a delivery pipe (913); one end of the delivery pipe (913) is connected to the surface of a spiral heat conducting pipe (13); the inner side of the surface of the spiral heat conducting pipe (13) is connected to a plurality of atomizing nozzles (914); and a staggered component (915) for controlling the front and rear staggered movement of the two front movable disks (98) is provided on the mounting plate (91).

3. A self-cooling permanent magnet high-speed blower according to claim 2, characterized in that: The staggered assembly (915) includes a support bar (9151) fixed in front of the mounting plate (91), a tilting bar (9152) rotatably mounted on the support bar (9151), rotating bars (9153) rotatably mounted on both sides of the surface of the tilting bar (9152), a driving rod (9155) fixed in front of the two front movable plates (98) through a V-shaped rod (9154), the driving rod (9155) penetrates and slides in front of the driving cylinder (92), the adjacent driving rods (9155) are rotatably connected to the rotating bars (9153), a pulling block (9156) is rotatably mounted on the surface of the tilting bar (9152), a collar (9157) is fixed at one end of the pulling block (9156), and the collar (9157) is rotatably mounted on the surface of the concave shaft (11).

4. A self-cooling permanent magnet high-speed blower according to claim 2, characterized in that: The surfaces of the front rotating shaft (96) and the rear rotating shaft (910) are both sleeved with a return torsion spring (14), and the return torsion spring (14) is used for the rapid return of the rear sealing cover (97) and the front sealing cover (911).

5. A self-cooling permanent magnet high-speed blower according to claim 2, characterized in that: The rear sealing cover (97) and the front sealing cover (911) are both provided with a pair of sealing rings, and the sealing rings are used to improve the sealing performance between the rear sealing cover (97), the front sealing cover (911) and the rear water inlet circular groove (95) and the front water inlet circular groove (99).

6. A self-cooling permanent magnet high-speed blower according to claim 1, characterized in that: The spiral heat conducting pipe (13) is a copper pipe, the surface of which is coated with a graphene coating.

7. A self-cooling permanent magnet high-speed blower according to claim 2, characterized in that: Both ends of the spiral heat conducting pipe (13) are of closed design, and the water mist sprayed by the atomizing nozzle (914) can cover the entire surface of the dual-axis permanent magnet motor (1).

8. The self-cooling permanent magnet high-speed blower according to claim 1, characterized in that: The self-cleaning mechanism (17) comprises a connecting rod (171) slidably mounted on the surface of the output shaft of the dual-axis permanent magnet motor (1); electric telescopic rods (172) are fixed above and below the inner wall of the mesh cover (3); a rotating ring (173) is rotatably mounted between the ends of the two electric telescopic rods (172); one end of the connecting rod (171) is fixed to the inner wall of the rotating ring (173); a roller (174) rotatably passes through the rotating ring (173); contact bristles (175) are fixed to the surface of the roller (174); and a fitting friction roller (176) that fits the inner wall of the mesh cover (3) is fixed to the surface of the roller (174).

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