Permanent magnet outer rotor roller and stator assembly

Abstract

The invention relates to the technical field of motors, and discloses a permanent magnet outer rotor roller and a stator assembly, the permanent magnet outer rotor roller comprises the stator assembly and an outer rotor roller installed on the stator assembly, one end of the outer rotor roller is provided with a reversing mechanism, the reversing mechanism comprises a transmission ring, one end of the transmission ring is provided with an outer rotating ring, and the outer rotating ring is provided with an inner rotating ring. An inner rotating ring is arranged on the inner wall of the outer rotating ring, a permanent magnet roller stator is installed in the outer rotor roller, a driver is installed at one end of the permanent magnet roller stator, sealing discs are installed at the two ends of the permanent magnet roller stator, and a heat dissipation mechanism is arranged at the end, away from the driver, of the permanent magnet roller stator. And the heat dissipation mechanism is used for dissipating heat in the outer rotor roller. By arranging the heat dissipation mechanism, hot air in a closed space is circulated, the sealing performance of the outer rotor roller is kept while the heat dissipation effect is achieved, and foreign matter is effectively prevented from entering.

Description

Technical Field

[0001] The invention belongs to the technical field of electric motors, and in particular relates to a permanent magnet outer rotor drum and a stator assembly. Background Art

[0002] Compared with traditional motors, permanent magnet outer rotor electric drums eliminate transmission mechanisms such as reducers and are widely used in the field of coal transportation. Using them as power devices to drive belts to transport coal can effectively improve energy saving effects. However, the heat dissipation problem of permanent magnet outer rotor electric drums is a more serious problem after long-term use. In order to maintain its sealing, a water-cooled radiator is installed at the end of the permanent magnet outer rotor electric drum to avoid contact with the internal structure of the electric drum, but the heat dissipation effect needs to be improved.

[0003] A Chinese patent with publication number CN118137751A discloses a permanent magnet electric roller with water passing through the stator core. The water inside the liquid storage tank can enter the thin-walled tube through the water inlet through the water inlet mechanism, so that the cooling water can be used to directly cool the inside of the stator core. In this way, the stator core is fully dissipated. A circle of holes is opened on the circumference of the elbow of the stator core. After the stator core is stacked, a circle of cooling channels is formed. Thin-walled tubes are installed in this channel. The thin-walled tubes are connected to the water inlet and the water outlet to form an inlet and an outlet cooling circuit. The stator core is directly cooled from the inside, which can greatly improve the heat dissipation effect of the permanent magnet electric roller body, thereby improving the power density of the permanent magnet electric roller body, reducing the volume of the permanent magnet electric roller body, and better meeting the actual needs of users.

[0004] However, this technical solution still has at least the following defects: in this solution, cooling water is directly connected to the stator core for cooling, and the stator core is located in the middle of the electric drum, resulting in a small diameter of the stator core, a small contact surface between the cooling water and the stator core, and poor heat dissipation effect. In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a permanent magnet outer rotor roller and stator assembly. By setting a heat dissipation mechanism, the hot air in the enclosed space is circulated, which has a heat dissipation effect while maintaining the sealing of the outer rotor roller, effectively preventing foreign matter from entering; the hot air circulating in the heat dissipation mechanism is cooled by setting a cooling mechanism, and the heat dissipation fan is used to accelerate the evaporation of water to improve the cooling effect.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] The stator assembly comprises a permanent magnet drum stator, a driver is installed at one end of the permanent magnet drum stator, sealing disks are installed at both ends of the permanent magnet drum stator, and a heat dissipation mechanism is provided at one end of the permanent magnet drum stator away from the driver;

[0008] A cooling mechanism is arranged on one side of the heat dissipation mechanism, and the cooling mechanism comprises a water storage box, a pump head is installed at one end of the water storage box, and the cooling mechanism also comprises a heat dissipation fan. The cooling mechanism dissipates heat by spraying water through the pump head, and accelerates the evaporation and heat absorption of water through the heat dissipation fan.

[0009] As a preferred embodiment of the present invention, the heat dissipation mechanism includes an upper airflow duct and a lower airflow duct, and the upper airflow duct and the lower airflow duct are respectively sealed and connected to the upper and lower ends of the sealing disk, an upper airflow return groove is installed at one end of the upper airflow duct, and a lower airflow return groove is installed at one end of the lower airflow duct, a pipe is installed between the upper airflow return groove and the lower airflow return groove, and a ventilation fan is installed in the pipe, and the upper airflow duct, the upper airflow return groove, the pipe, the lower airflow return groove and the lower airflow duct form a circulating closed space with the outer rotor drum through the through holes on the sealing disk.

[0010] As a preferred embodiment of the present invention, the ventilation fan passes through the lower air flow return groove through a rotating shaft and is fixedly installed with a second gear, the side of the second gear is meshingly connected with a third gear, one end of the third gear is rotatably connected to one end of the permanent magnet drum stator, and the outer side of the third gear is meshingly connected with a gear ring.

[0011] As a preferred embodiment of the present invention, fixed base frames are fixedly installed on both sides of the pipeline, a transmission shaft is movably inserted on the fixed base frame, one end of the transmission shaft is fixedly connected to the third gear, and a transmission mechanism is installed on the other end of the transmission shaft, the transmission mechanism includes a fourth gear and a fifth gear, the fourth gear and the fifth gear are meshed with each other, the fourth gear is fixedly connected to the transmission shaft, the fifth gear is fixedly connected to the cooling fan, and a shell is installed on the outside of the transmission mechanism.

[0012] As a preferred embodiment of the present invention, a support frame is installed between the shell and the fixed base frame, the bottom of the support frame is rotatably connected to a rotating rod, a worm wheel is installed on the rotating rod, a worm is embedded on the transmission shaft, and the worm and the worm wheel are meshed with each other.

[0013] As a preferred embodiment of the present invention, a fixing frame is installed at one end of the water storage box, a folding rod is rotatably installed at one end of the fixing frame, one end of the folding rod extends to one side of the rotating rod, a turntable is installed on the rotating rod, a special-shaped groove is provided on the turntable, a section is provided on the special-shaped groove, and one end of the folding rod is movably connected in the special-shaped groove.

[0014] As a preferred embodiment of the present invention, the pump head side is rotatably connected with a sleeve, the sleeve is movably sleeved on one end of the folding rod, a spring is fixedly installed on the sleeve, one end of the spring is installed at one end of the water storage box, and one end of the spring is fixedly installed at one end of the water storage box.

[0015] As a preferred embodiment of the present invention, a heat dissipation copper plate is installed at one end of the upper airflow return groove, one side of the heat dissipation copper plate is connected to the interior of the upper airflow return groove, and the heat dissipation copper plate is aligned with the heat dissipation fan.

[0016] A permanent magnet outer rotor drum comprises a stator assembly and an outer rotor drum mounted on the stator assembly, a reversing mechanism being mounted at one end of the outer rotor drum, the reversing mechanism comprising a transmission ring, an outer rotating ring being arranged at one end of the transmission ring, an inner rotating ring being arranged on the inner wall of the outer rotating ring, the reversing mechanism being used for converting the positive or reverse rotation of the outer rotor drum into the directional rotation of the outer rotating ring.

[0017] As a preferred embodiment of the present invention, the other end of the transmission ring is fixedly connected to one end of the outer rotor roller, and the transmission ring includes an outer ring and an inner ring, and the outer ring and the inner ring respectively correspond to the outer rotating ring and the inner rotating ring, and push rods are rotatably installed on the outer ring and the inner ring, and a torsion spring is installed at one end of the push rod, and a gear ring is installed at one end of the outer rotating ring and the inner rotating ring, and the gear ring is adapted to the push rod, and the inner wall of the outer rotating ring and the outer wall of the inner rotating ring are provided with tooth grooves, and a first gear is meshed and connected between the outer rotating ring and the inner rotating ring, and a fixed block is rotatably installed at one end of the first gear.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a heat dissipation mechanism to circulate the hot air in the closed space, thereby achieving a heat dissipation effect while maintaining the sealing of the outer rotor drum, effectively preventing foreign matter from entering.

[0020] The present invention cools down the hot air circulating in the heat dissipation mechanism by setting up a cooling mechanism, and uses a heat dissipation fan to accelerate the evaporation of water to improve the cooling effect;

[0021] The present invention provides a reversing mechanism so that the outer rotor drum can achieve the heat dissipation function of the device when rotating forward or reversely, has high practicality, and does not require additional debugging work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the permanent magnet outer rotor drum of the present invention;

[0023] Figure 2 This is a schematic diagram of the outer rotor drum structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the stator assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the transmission ring of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the outer rotating ring of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the first gear of the present invention;

[0028] Figure 7 It is a schematic diagram of the heat dissipation mechanism structure of the present invention;

[0029] Figure 8 This is a structural schematic diagram of the ventilation fan of the present invention;

[0030] Fig. 9 It is a schematic diagram of the cooling mechanism structure of the present invention;

[0031] Fig.10 It is a structural schematic diagram of the water storage box of the present invention;

[0032] Fig.11 This is a schematic diagram of the structure of the pump head of the present invention;

[0033] Fig.12 It is a schematic diagram of the structure of the turntable of the present invention.

[0034] In the figure:

[0035] 100, outer rotor roller; 101, transmission ring; 102, outer ring; 103, inner ring; 104, push rod; 105, torsion spring; 106, outer rotating ring; 107, inner rotating ring; 108, gear ring; 109, tooth groove; 110, first gear; 111, fixed block;

[0036] 200, permanent magnet drum stator; 201, driver; 202, sealing disk; 203, upper airflow channel; 204, upper airflow return groove; 205, heat dissipation copper plate; 206, pipeline; 207, ventilation fan; 208, lower airflow return groove; 209, lower airflow channel; 210, second gear; 211, third gear; 212, gear ring;

[0037] 300, fixed base frame; 301, transmission shaft; 302, housing; 303, fourth gear; 304, fifth gear; 305, cooling fan;

[0038] 400, worm; 401, worm wheel; 402, rotating rod; 403, supporting frame; 404, rotating disk; 405, special-shaped groove; 406, cross section; 407, folding rod; 408, fixing frame; 409, sleeve; 410, spring; 411, pump head; 412, water storage box. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0040] Embodiment 1:

[0041] like Figure 1 , Figure 3 , Figure 7 As shown, the stator assembly includes a permanent magnet drum stator 200, a driver 201 is installed at one end of the permanent magnet drum stator 200, sealing disks 202 are installed at both ends of the permanent magnet drum stator 200, and a heat dissipation mechanism is provided at one end of the permanent magnet drum stator 200 away from the driver 201, and the heat dissipation mechanism is used to dissipate heat inside the outer rotor drum 100;

[0042] A cooling mechanism is provided on one side of the heat dissipation mechanism, and the cooling mechanism includes a water storage box 412, a pump head 411 is installed at one end of the water storage box 412, and the cooling mechanism also includes a cooling fan 305. The cooling mechanism dissipates heat by spraying water through the pump head 411, and accelerates the evaporation of water and heat absorption through the cooling fan 305.

[0043] like Figure 7 , Figure 8 As shown, in a specific embodiment, the heat dissipation mechanism includes an upper airflow channel 203 and a lower airflow channel 209, the upper airflow channel 203 and the lower airflow channel 209 are respectively sealed and connected to the upper and lower ends of the sealing disk 202, an upper airflow return groove 204 is installed at one end of the upper airflow channel 203, and a lower airflow return groove 208 is installed at one end of the lower airflow channel 209, a pipe 206 is installed between the upper airflow return groove 204 and the lower airflow return groove 208, and a ventilation fan 207 is installed in the pipe 206, and the upper airflow channel 203, the upper airflow return groove 204, the pipe 206, the lower airflow return groove 208 and the lower airflow channel 209 form a circulating closed space with the outer rotor drum 100 through the through holes on the sealing disk 202. In this setting, the ventilation fan 207 enables the hot air in the outer rotor drum 100 to circulate and transfer the heat to the heat dissipation copper plate 205.

[0044] like Figure 7 , Figure 8 As shown, further, the ventilation fan 207 passes through the lower airflow return groove 208 through the rotating shaft and is fixedly installed with the second gear 210, the side of the second gear 210 is meshedly connected with the third gear 211, one end of the third gear 211 is rotatably connected with one end of the permanent magnet drum stator 200, and the outer side of the third gear 211 is meshedly connected with a gear ring 212, and the gear ring 212 is fixedly connected to the inner wall of the outer rotating ring 106. In this configuration, the permanent magnet outer rotor drum 100 rotates and drives the gear ring 212 to rotate through the reversing mechanism, the gear ring 212 drives the third gear 211 to rotate through meshing, the third gear 211 drives the second gear 210 to rotate through meshing, and the second gear 210 drives the ventilation fan 207 to rotate.

[0045] Embodiment 2:

[0046] like Figure 7 , Fig. 9 As shown, further, fixed base frames 300 are fixedly installed on both sides of the pipeline 206, and a transmission shaft 301 is movably inserted on the fixed base frame 300, one end of the transmission shaft 301 is fixedly connected to the third gear 211, and the other end of the transmission shaft 301 is installed with a transmission mechanism, the transmission mechanism includes a fourth gear 303 and a fifth gear 304, the fourth gear 303 and the fifth gear 304 are meshed with each other, the diameter of the fourth gear 303 is larger than the diameter of the fifth gear 304, the fourth gear 303 is fixedly connected to the transmission shaft 301, the fifth gear 304 is fixedly connected to the cooling fan 305, and a shell 302 is installed on the outside of the transmission mechanism. In this configuration, when the third gear 211 rotates, it drives the transmission shaft 301 to rotate, the transmission shaft 301 drives the fourth gear 303 to rotate, the fourth gear 303 drives the fifth gear 304 to rotate through meshing, and the fifth gear 304 drives the cooling fan 305 to rotate. Since the diameter of the fourth gear 303 is greater than the diameter of the fifth gear 304, the fourth gear 303 can obtain a higher rotation speed, thereby allowing the cooling fan 305 to generate greater wind force.

[0047] like Figure 9-11 As shown, in a specific embodiment, a support frame 403 is installed between the housing 302 and the fixed base frame 300, and a rotating rod 402 is rotatably connected to the bottom of the support frame 403, a worm wheel 401 is installed on the rotating rod 402, and a worm 400 is embedded and installed on the transmission shaft 301, and the worm 400 and the worm wheel 401 are meshed with each other. In this configuration, when the transmission shaft 301 rotates, the meshing of the worm 400 and the worm wheel 401 drives the rotating rod 402 to rotate, thereby rotating the turntable 404.

[0048] like Figure 10-12 As shown, further, a fixing frame 408 is installed at one end of the water storage box 412, and a folding rod 407 is rotatably installed at one end of the fixing frame 408, one end of the folding rod 407 extends to one side of the rotating rod 402, and a turntable 404 is installed on the rotating rod 402, and a special-shaped groove 405 is opened on the turntable 404, and a section 406 is opened on the special-shaped groove 405, and one end of the folding rod 407 is movably connected in the special-shaped groove 405; a sleeve 409 is rotatably connected to the side of the pump head 411, and the sleeve 409 is movably sleeved on one end of the folding rod 407, and a spring 410 is fixedly installed on the sleeve 409, and one end of the spring 410 is installed at one end of the water storage box 412, and one end of the spring 410 is fixedly installed at one end of the water storage box 412. In this arrangement, the spring 410 is always in a stretched state, and its tension causes the other end of the folding rod 407 to cling to the inner wall of the special-shaped groove 405 through the lever principle. When the turntable 404 rotates until the section 406 is aligned with the folding rod 407, the folding rod 407 moves rapidly under the tension of the spring 410. At the same time, the tension of the spring 410 drives the pump head 411 to be pressed together, and the pump head 411 is pressed together to spray the water in the water storage box 412 upward.

[0049] like Figure 7, Fig.11 As shown, further, a heat dissipation copper plate 205 is installed at one end of the upper airflow return groove 204, one side of the heat dissipation copper plate 205 is connected to the interior of the upper airflow return groove 204, and the heat dissipation copper plate 205 is aligned with the heat dissipation fan 305. In this configuration, the water sprayed by the pump head 411 floats toward the heat dissipation copper plate 205 under the action of the heat dissipation fan 305, thereby accelerating the cooling speed of the heat dissipation copper plate 205.

[0050] Embodiment 3:

[0051] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, a permanent magnet outer rotor drum comprises a stator assembly and an outer rotor drum 100 mounted on the stator assembly, a reversing mechanism is mounted at one end of the outer rotor drum 100, the reversing mechanism comprises a transmission ring 101, an outer rotating ring 106 is arranged at one end of the transmission ring 101, an inner rotating ring 107 is arranged on the inner wall of the outer rotating ring 106, and the reversing mechanism is used to convert the positive or reverse rotation of the outer rotor drum 100 into the directional rotation of the outer rotating ring 106.

[0052] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, in a specific embodiment, the other end of the transmission ring 101 is fixedly connected to one end of the outer rotor roller 100, and the transmission ring 101 includes an outer ring 102 and an inner ring 103, and the outer ring 102 and the inner ring 103 correspond to the outer rotating ring 106 and the inner rotating ring 107 respectively. A push rod 104 is rotatably installed on the outer ring 102 and the inner ring 103, and a torsion spring 105 is installed at one end of the push rod 104. A gear ring 108 is installed at one end of the outer rotating ring 106 and the inner rotating ring 107, and the gear ring 108 is adapted to the push rod 104. The inner wall of the outer rotating ring 106 and the outer wall of the inner rotating ring 107 are provided with tooth grooves 109, and a first gear 110 is meshed and connected between the outer rotating ring 106 and the inner rotating ring 107, and a fixed block 111 is rotatably installed at one end of the first gear 110, and the fixed block 111 is fixedly connected to the heat dissipation mechanism. In this configuration, when the outer rotor drum 100 rotates in the forward direction, the outer rotating ring 106 is oriented in the reverse direction (eg Figure 1The outer rotor drum 100 drives the transmission ring 101 to rotate, and the transmission ring 101 pushes the outer rotating ring 106 through the push rod 104 on the outer ring 102, so that the outer rotating ring 106 and the outer rotor drum 100 keep moving in the same direction. At the same time, the outer rotating ring 106 rotates the inner rotating ring 107 in the opposite direction through the meshing action of the tooth groove 109 and the first gear 110, so that the ring gear 108 on the inner rotating ring 107 can be staggered with the push rod 104 on the inner ring 103; when the rotation direction of the outer rotor drum 100 is reverse rotation, the outer rotating ring 106 rotates in the opposite direction (such as Figure 1 The transmission ring 101 drives the inner rotating ring 107 to rotate through the push rod 104 on the inner ring 103, and drives the outer rotating ring 106 to rotate through the tooth groove 109 and the first gear 110. At this time, the outer rotating ring 106 rotates in the opposite direction to the outer rotor drum 100, and the push rod 104 on the outer ring 102 is staggered with the ring gear 108 on the outer rotating ring 106.

[0053] The implementation principle of the permanent magnet outer rotor drum of this embodiment is as follows: the stator assembly is fixed by fixing the base frame 300 and the driver 201. When working, the permanent magnet outer rotor drum 100 rotates, and drives the gear ring 212 to rotate through the reversing mechanism. The gear ring 212 drives the third gear 211 to rotate through meshing. The third gear 211 drives the second gear 210 to rotate through meshing. The second gear 210 drives the ventilation fan 207 to rotate. The ventilation fan 207 allows the hot air in the outer rotor drum 100 to circulate and transfer the heat to the heat dissipation copper plate 205.

[0054] When the third gear 211 rotates, it drives the transmission shaft 301 to rotate, the transmission shaft 301 drives the fourth gear 303 to rotate, the fourth gear 303 drives the fifth gear 304 to rotate through meshing, and the fifth gear 304 drives the cooling fan 305 to rotate. Since the diameter of the fourth gear 303 is greater than the diameter of the fifth gear 304, the fourth gear 303 can obtain a higher rotation speed, so that the cooling fan 305 generates a greater wind force;

[0055] When the transmission shaft 301 rotates, the engagement between the worm 400 and the worm wheel 401 drives the rotating rod 402 to rotate, thereby rotating the rotating disk 404. Since the spring 410 is always in a stretched state, its tension makes the other end of the folding rod 407 close to the inner wall of the special-shaped groove 405 through the lever principle. When the rotating disk 404 rotates until the cross section 406 is aligned with the folding rod 407, the folding rod 407 moves rapidly under the tension of the spring 410. At the same time, the tension of the spring 410 drives the pump head 411 to press together. The pump head 411 presses together to make the water in the water storage box 412 spray upwards and float to the heat dissipation copper plate 205 under the action of the heat dissipation fan 305, thereby accelerating the cooling speed of the heat dissipation copper plate 205.

[0056] In this embodiment, the reversing mechanism is used to convert the positive or negative rotation of the outer rotor drum 100 into the directional rotation of the outer rotating ring 106. When the rotation direction of the outer rotor drum 100 is positive rotation, which is the same as the directional rotation of the outer rotating ring 106, the outer rotor drum 100 drives the transmission ring 101 to rotate, and the transmission ring 101 pushes the outer rotating ring 106 through the push rod 104 on the outer ring 102, so that the outer rotating ring 106 and the outer rotor drum 100 keep moving in the same direction. At the same time, the outer rotating ring 106 makes the inner rotating ring 106 move in the same direction through the meshing action of the tooth groove 109 and the first gear 110. 07 turns in the opposite direction, so that the gear ring 108 on the inner rotating ring 107 can be staggered with the push rod 104 on the inner ring 103. When the rotation direction of the outer rotor drum 100 is reverse rotation, which is opposite to the directional rotation of the outer rotating ring 106, the transmission ring 101 drives the inner rotating ring 107 to rotate through the push rod 104 on the inner ring 103, and drives the outer rotating ring 106 to rotate through the tooth groove 109 and the first gear 110. At this time, the outer rotating ring 106 and the outer rotor drum 100 turn in the opposite direction, and the push rod 104 on the outer ring 102 are staggered with the gear ring 108 on the outer rotating ring 106.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A stator assembly, characterized in that: It comprises a permanent magnet drum stator (200), a driver (201) being installed at one end of the permanent magnet drum stator (200), sealing disks (202) being installed at both ends of the permanent magnet drum stator (200), and a heat dissipation mechanism being provided at one end of the permanent magnet drum stator (200) away from the driver (201); A cooling mechanism is provided on one side of the heat dissipation mechanism, the cooling mechanism comprising a water storage box (412), a pump head (411) being installed at one end of the water storage box (412), the cooling mechanism further comprising a heat dissipation fan (305), the cooling mechanism dissipates heat by spraying water through the pump head (411), and accelerates the evaporation of water and the absorption of heat through the heat dissipation fan (305).

2. The stator assembly according to claim 1, characterized in that: The heat dissipation mechanism comprises an upper airflow duct (203) and a lower airflow duct (209), wherein the upper airflow duct (203) and the lower airflow duct (209) are respectively sealedly connected to the upper and lower ends of the sealing disk (202), an upper airflow return groove (204) is installed at one end of the upper airflow duct (203), and a lower airflow return groove (208) is installed at one end of the lower airflow duct (209), a pipe (206) is installed between the upper airflow return groove (204) and the lower airflow return groove (208), and a ventilation fan (207) is installed in the pipe (206), and the upper airflow duct (203), the upper airflow return groove (204), the pipe (206), the lower airflow return groove (208) and the lower airflow duct (209) form a circulating closed space with the outer rotor drum (100) through the through holes on the sealing disk (202).

3. The stator assembly according to claim 2, characterized in that: The ventilation fan (207) passes through the lower airflow return groove (208) through a rotating shaft and is fixedly installed with a second gear (210); the side of the second gear (210) is meshedly connected with a third gear (211); one end of the third gear (211) is rotatably connected to one end of the permanent magnet drum stator (200); and the outer side of the third gear (211) is meshedly connected with a gear ring (212).

4. The stator assembly according to claim 3, characterized in that: A fixed base frame (300) is fixedly installed on both sides of the pipeline (206), and a transmission shaft (301) is movably inserted on the fixed base frame (300). One end of the transmission shaft (301) is fixedly connected to the third gear (211), and the other end of the transmission shaft (301) is installed with a transmission mechanism, and the transmission mechanism includes a fourth gear (303) and a fifth gear (304). The fourth gear (303) and the fifth gear (304) are meshed with each other. The fourth gear (303) is fixedly connected to the transmission shaft (301), and the fifth gear (304) is fixedly connected to the heat dissipation fan (305). A shell (302) is installed on the outside of the transmission mechanism.

5. The stator assembly according to claim 4, characterized in that A support frame (403) is installed between the housing (302) and the fixed base frame (300); a rotating rod (402) is rotatably connected to the bottom of the support frame (403); a worm wheel (401) is installed on the rotating rod (402); a worm (400) is embedded and installed on the transmission shaft (301); and the worm (400) and the worm wheel (401) are meshed with each other.

6. The stator assembly according to claim 5, characterized in that A fixing frame (408) is installed at one end of the water storage box (412), a folding rod (407) is rotatably installed at one end of the fixing frame (408), one end of the folding rod (407) extends to one side of the rotating rod (402), a rotating disk (404) is installed on the rotating rod (402), a special-shaped groove (405) is provided on the rotating disk (404), a section (406) is provided on the special-shaped groove (405), and one end of the folding rod (407) is movably connected in the special-shaped groove (405).

7. The stator assembly according to claim 6, characterized in that The pump head (411) is rotatably connected to a sleeve (409) on its side, the sleeve (409) is movably sleeved on one end of the folding rod (407), a spring (410) is fixedly mounted on the sleeve (409), one end of the spring (410) is mounted on one end of a water storage box (412), and one end of the spring (410) is fixedly mounted on one end of the water storage box (412).

8. The stator assembly according to claim 7, characterized in that A heat dissipation copper plate (205) is installed at one end of the upper airflow return groove (204), one side of the heat dissipation copper plate (205) is connected to the interior of the upper airflow return groove (204), and the heat dissipation copper plate (205) is aligned with the heat dissipation fan (305).

9. A permanent magnet outer rotor drum, comprising a stator assembly according to any one of claims 1 to 8 and an outer rotor drum (100) mounted on the stator assembly, characterized in that: A reversing mechanism is installed at one end of the outer rotor roller (100), the reversing mechanism comprising a transmission ring (101), an outer rotating ring (106) is arranged at one end of the transmission ring (101), an inner rotating ring (107) is arranged on the inner wall of the outer rotating ring (106), and the reversing mechanism is used to convert the positive or negative rotation of the outer rotor roller (100) into the directional rotation of the outer rotating ring (106).

10. The permanent magnet outer rotor drum according to claim 9, characterized in that: The other end of the transmission ring (101) is fixedly connected to one end of the outer rotor roller (100). The transmission ring (101) comprises an outer ring (102) and an inner ring (103). The outer ring (102) and the inner ring (103) correspond to the outer rotating ring (106) and the inner rotating ring (107) respectively. A push rod (104) is rotatably mounted on the outer ring (102) and the inner ring (103). A torsion spring (105) is mounted on one end of the push rod (104). A gear ring (108) is installed at one end of the outer rotating ring (106) and the inner rotating ring (107), and the gear ring (108) is adapted to the push rod (104). The inner wall of the outer rotating ring (106) and the outer wall of the inner rotating ring (107) are provided with a tooth groove (109). A first gear (110) is meshedly connected between the outer rotating ring (106) and the inner rotating ring (107), and a fixed block (111) is rotatably installed at one end of the first gear (110).

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