Wet and dry dual-purpose dual-rotor permanent magnet motor

Abstract

The invention discloses a wet and dry dual-rotor permanent magnet motor, and relates to the field of permanent magnet motors, the wet and dry dual-rotor permanent magnet motor comprises a permanent magnet motor, the bottom end of the permanent magnet motor is provided with a fixing structure, the outer wall of the permanent magnet motor is provided with a heat dissipation layer, the outer side of the heat dissipation layer is provided with a plurality of groups of heat dissipation fins, and the outer side of the permanent magnet motor is sleeved with a sealing heat dissipation mechanism. And the sealing heat dissipation mechanism comprises a plurality of groups of sealing plates and cleaning rods which are connected in a staggered manner. In a humid environment, transmission teeth of the sleeve can be replaced, the air supply fan blades are communicated with the air exhaust fan blades, the sealed heat dissipation mechanism is sealed, in the heat dissipation process, the sealed heat dissipation mechanism, the positioning ring and the sleeve form a sealed circular flow system, the situation that the heat dissipation mechanism is corroded due to the fact that the heat dissipation mechanism is polluted by humid air is avoided, and the service life of the heat dissipation mechanism is prolonged. And in order to improve the heat dissipation effect, a plurality of groups of heat dissipation flow deflectors are mounted on the outer side of the sleeve, so that the heat conduction efficiency between the sleeve and external air can be improved, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The invention relates to the field of permanent magnet motors, in particular to a dry-wet dual-rotor permanent magnet motor. Background Art

[0002] The dual-rotor permanent magnet motor is a permanent magnet motor designed with two sets of rotors. Unlike the traditional single-rotor motor, the dual-rotor permanent magnet motor has two rotors. Through a special structural design, it can provide higher power density and efficiency. Its applications mainly include high-efficiency drive systems, especially in electric vehicles, power equipment, and some fields that require high power density and compact design. During the use of the dual-rotor permanent magnet motor, the dual-rotor permanent magnet motor will use a cooling system, a supporting mechanism, and electronic control equipment to assist the dual-rotor permanent magnet motor.

[0003] Prior art, such as Chinese patent publication number CN111211659B, discloses a stator modular annular winding dual-rotor permanent magnet motor, including an inner rotor, an outer rotor and a plurality of modular stators, all of which are spliced ​​in sequence to form a complete stator, the stator is located between the inner rotor and the outer rotor, and the inner rotor and the outer rotor form independent air gaps with the stator respectively; each modular stator is radially provided with an inner stator slot and an outer stator slot, the inner stator slot is close to the inner rotor, and the outer stator slot is close to the outer rotor, the inner stator slot and the outer stator slot are on both sides of the stator teeth, and the inner stator slot and the outer stator slot are between the stator yoke, the stator yoke of each modular stator has an armature winding wound in a ring manner, and permanent magnets are provided at the slots of the inner stator slot and the outer stator slot, and the permanent magnets and adjacent stator teeth form a pair of stator poles.

[0004] Moreover, existing motors are usually used in different environments. If the external humidity changes, it will affect the service life of the motor and the use of the existing technology using multiple sets of conjugated stators and rotors. During use, the motor needs to be powered on and off continuously. The magnet will be continuously powered on and off during use, and the resistance will cause the temperature of the motor to continue to rise. If used for a long time, cooling equipment is needed to cool the motor. During the cooling process, water cooling or air cooling equipment is usually used. However, the existing cooling method is to inject the cooling medium into the outer wall of the motor for heat exchange. There are more practical cooling media, which need to be continuously circulated to dissipate heat. In addition, the outer contact area is limited and the heat exchange time is short, which leads to low heat exchange efficiency of many media. However, it still needs to be driven by circulation equipment, wasting unnecessary electricity. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a dual-rotor permanent magnet motor for dry and wet use to solve the technical problems of short motor service life and low efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wet and dry dual-rotor permanent magnet motor, comprising a permanent magnet motor, a fixed structure installed at the bottom end of the permanent magnet motor, a heat dissipation layer provided on the outer wall of the permanent magnet motor, a plurality of heat sinks installed on the outer side of the heat dissipation layer, a sealed heat dissipation mechanism sleeved on the outer side of the permanent magnet motor, the sealed heat dissipation mechanism comprising a plurality of staggered sealing plates and cleaning rods, and a plurality of scrapers installed on the inner wall of each group of cleaning rods, and the scrapers are located between the two groups of heat sinks, and two groups of exhaust holes and one group of air inlet holes are respectively provided on both sides of the scrapers, Two groups of exhaust holes are located at both ends of the scraper, and the exhaust holes are aligned with the outer wall of the heat sink. An air suction groove is provided at the bottom end of the air inlet hole, and the air suction groove is in contact with the outer wall of the heat dissipation layer. An air inlet channel and an air extraction channel are provided on the inner wall of the cleaning rod. The air inlet channel is connected to the exhaust hole, and the air extraction channel is connected to the air inlet hole. Two groups of positioning rings are sleeved on the outer side of the scraper, and the two groups of positioning rings are aligned and connected with the air inlet channel and the air extraction channel respectively. A transmission structure is connected to the outer side of the transmission shaft, and meshing teeth are provided on the outer wall of the sealed heat dissipation mechanism. The transmission shaft is connected to the meshing teeth through the transmission structure.

[0007] By adopting the above technical solution, the permanent magnet motor can be easily cooled, and during the heat dissipation process, the airflow can fully fit the outer side of the heat dissipation layer, driving the heat to flow in the heat dissipation layer, thereby improving the heat dissipation effect.

[0008] The present invention is further configured such that the bottom end of the permanent magnet motor is connected to a support frame and a stabilizing frame, a collar is installed inside the support frame, the transmission structure includes a transmission belt and a transmission shaft connected to the outside of the output end of the permanent magnet motor, the transmission belt is connected to the transmission shaft in transmission, the support frame limits the transmission shaft through the collar, the bottom end of the positioning ring is connected to a support rod, and the positioning ring is fixedly connected to the stabilizing frame through the support rod.

[0009] As a preferred embodiment, the positioning ring can be conveniently fixed and the transmission shaft can be limited, thereby improving the stability of the motor operation.

[0010] The present invention is further configured such that an air supply fan blade and an air exhaust fan blade are installed on the outer side of the transmission shaft, and the air supply fan blade and the air exhaust fan blade are respectively fitted with the side surfaces of the two groups of positioning rings.

[0011] As a preferred embodiment, the fan blades can be easily rotated to drive the airflow into or out of the positioning ring.

[0012] The present invention is further configured such that the positioning ring is connected to the end channel of the cleaning rod through a connecting sleeve, the air supply fan blades and the exhaust fan blades are connected to the positioning ring through a connecting sleeve, and the transmission shaft passes through the slots of the two groups of positioning rings, the inner sides of the two groups of positioning rings are provided with connecting sleeves, and the relative positions of the two groups of positioning rings are provided with slots.

[0013] Preferably, airflow can conveniently enter or exit the sealed heat dissipation mechanism.

[0014] The present invention is further configured such that an outer side of the sealing heat dissipation mechanism is provided with an edge ring on the outer wall of the positioning ring, the edge ring is fitted with the inner wall of the positioning ring, and the sealing heat dissipation mechanism is provided with sealing rings on both sides of each group of positioning rings, and the sealing rings are fixed on the outer side of the edge ring.

[0015] As a preferred embodiment, it is convenient to seal the positioning ring to avoid gas leakage from the inside of the sealing ring during the heat dissipation process.

[0016] The present invention is further configured such that the transmission structure on the outer side of the transmission shaft is a transmission gear, and the transmission gear is meshed with the meshing teeth. In this case, the permanent magnet motor is used in a dry environment.

[0017] As a preferred embodiment, it is convenient to drive the sealed heat dissipation mechanism to rotate.

[0018] The present invention is further configured such that the transmission mechanism on the outer side of the transmission shaft is a sleeve, the outer side of the sleeve is connected with teeth matching the meshing teeth, the sleeve is transmission-connected to the meshing teeth, and both ends of the sleeve are in contact with the outer walls of two groups of connecting sleeves.

[0019] As a preferred embodiment, the sleeve can drive the sealed heat dissipation mechanism to rotate and seal the heat dissipation position to avoid contaminating the heat dissipation layer.

[0020] The present invention is further configured such that a heat dissipation guide plate is installed on the outer side of the sleeve, and the heat dissipation guide plate penetrates the transmission shaft and extends to the inner side of the sleeve, thereby increasing the contact area between the airflow inside the sleeve and the heat dissipation guide plate.

[0021] As a preferred embodiment, the heat dissipation effect of the sleeve can be improved.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] 1. The present invention provides two sets of symmetrical positioning rings and sealed heat dissipation mechanisms, which can seal the heat dissipation structure of the permanent magnet motor through the sealed heat dissipation mechanism during the heat dissipation process, and external impurities can enter the heat dissipation mechanism to cause unnecessary pollution. In the heat dissipation process, the permanent magnet motor can drive the transmission shaft to rotate, and the transmission shaft drives two sets of fan blades. The air supply fan blades and the air exhaust fan blades respectively send air into the sealed heat dissipation mechanism that has been exhausted, so that the airflow circulates in the sealed heat dissipation mechanism, thereby dissipating the heat of the permanent magnet motor.

[0024] 2. The present invention can also guide the air entering the sealed heat dissipation mechanism through the provided sealed heat dissipation mechanism and scrapers, so that the air forms a circulation between the two groups of scrapers, thereby improving the flow of air, thereby increasing the contact area between the air and the heat dissipation layer, and improving the heat dissipation effect. In the heat dissipation process, the sealed heat dissipation mechanism is driven to rotate through the transmission shaft, thereby driving each group of scrapers to rotate. The direction of rotation of the scraper is opposite to the direction of air intake, so that the incoming air is away from the scraper position at the time of entry and quickly contacts with the next group of scrapers, thereby improving the flow efficiency of the airflow.

[0025] 3. The present invention also provides a sleeve, which can replace the transmission teeth of the sleeve in a humid environment, connect the air supply fan blades with the exhaust fan blades, and seal the sealed heat dissipation mechanism. During the heat dissipation process, the sealed heat dissipation mechanism, the positioning ring and the sleeve form a sealed circulation flow system to prevent humid air from contaminating the heat dissipation mechanism and causing corrosion of the heat dissipation mechanism. In order to improve the heat dissipation effect at this time, multiple sets of heat dissipation guide plates are installed on the outside of the sleeve, which can improve the thermal conductivity between the sleeve and the outside air, thereby improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the support frame of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the heat dissipation layer of the motor of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the sealing heat dissipation mechanism of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the front side of the scraper during the heat dissipation process of the present invention;

[0031] Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at point A in the middle;

[0032] Figure 7 It is a schematic diagram of the structure of the back side of the scraper during the heat dissipation process of the present invention;

[0033] Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at B in the middle;

[0034] Fig. 9 It is a schematic diagram of the structure of the sealing heat dissipation mechanism and the positioning ring engaging with each other in the present invention;

[0035] Fig.10 It is a structural schematic diagram of the cleaning rod of the present invention;

[0036] Fig.11 It is a structural schematic diagram of the cross section of the cleaning rod of the present invention;

[0037] Fig.12 It is a schematic diagram of the structure of the positioning ring and each group of fan blade clamps of the present invention;

[0038] Fig.13 It is a schematic diagram of the sleeve structure of the second embodiment of the present invention;

[0039] Fig.14 It is a schematic structural diagram of a sleeve cross section according to the second embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1. Permanent magnet motor; 101. Transmission belt; 102. Support frame; 103. Stabilizing frame; 104. Heat dissipation layer; 105. Heat sink; 2. Transmission shaft; 201. Air supply blade; 202. Air exhaust blade; 203. Transmission gear; 204. Sleeve; 205. Heat dissipation guide plate; 3. Sealing heat dissipation mechanism; 301. Sealing plate; 302. Cleaning rod; 3021. Air inlet channel; 3022. Air exhaust channel; 303. Meshing teeth; 304. Side ring; 305. Sealing ring; 4. Positioning ring; 401. Connecting sleeve; 402. Slotting; 5. Scraper; 501. Exhaust hole; 502. Air inlet hole; 503. Air suction groove. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] The following describes an embodiment of the present invention based on its overall structure.

[0044] First embodiment:

[0045] See also Figures 1 to 11, including a permanent magnet motor 1, a fixed structure is installed at the bottom end of the permanent magnet motor 1, a heat dissipation layer 104 is opened on the outer wall of the permanent magnet motor 1, and multiple groups of heat sinks 105 are installed on the outer side of the heat dissipation layer 104, and a sealed heat dissipation mechanism 3 is sleeved on the outer side of the permanent magnet motor 1, and the sealed heat dissipation mechanism 3 includes multiple groups of staggered sealing plates 301 and cleaning rods 302, and multiple groups of scrapers 5 are installed on the inner wall of each group of cleaning rods 302, and the scraper 5 is located between two groups of heat sinks 105. During use, the scraper 5 can be rotated between the multiple groups of heat sinks 105 to drive the airflow, and both sides of the scraper 5 Two groups of exhaust holes 501 and one group of air inlet holes 502 are respectively provided, the two groups of exhaust holes 501 are located at both ends of the scraper 5, and the exhaust holes 501 are aligned with the outer wall of the heat sink 105, the bottom end of the air inlet hole 502 is provided with an air suction groove 503, the air suction groove 503 is in contact with the outer wall of the heat dissipation layer 104, the inner wall of the cleaning rod 302 is provided with an air inlet channel 3021 and an air extraction channel 3022, the air inlet channel 3021 is connected to the exhaust holes 501, the air extraction channel 3022 is connected to the air inlet hole 502, the outer side of the scraper 5 is sleeved with two groups of positioning rings 4, the two groups of positioning rings 4 are respectively connected to the air inlet channel 3021 Aligned and connected with the exhaust channel 3022, the air supply fan blade 201 and the exhaust fan blade 202 are installed on the outer side of the transmission shaft 2, and the air supply fan blade 201 and the exhaust fan blade 202 are respectively fitted with the side surfaces of the two groups of positioning rings 4, and the positioning ring 4 is connected with the end channel of the cleaning rod 302 through the connecting sleeve 401. The air supply fan blade 201 and the exhaust fan blade 202 are connected with the positioning ring 4 through the connecting sleeve 401, and the transmission shaft 2 passes through the slots 402 of the two groups of positioning rings 4. The inner sides of the two groups of positioning rings 4 are provided with connecting sleeves 401. The relative positions of the two groups of positioning rings 4 are provided with slots 402, which are sealed and heat dissipated. The outer side of the mechanism 3 is located on the outer wall of the positioning ring 4 and is provided with a side ring 304, and the side ring 304 is fitted with the inner wall of the positioning ring 4. The sealing heat dissipation mechanism 3 is located on both sides of each group of positioning rings 4 and is provided with sealing rings 305, and the sealing rings 305 are fixed on the outer sides of the side rings 304. During use, the air supply fan blades 201 and the exhaust fan blades 202 can drive the air flow inside the positioning ring 4. During the air flow process, the air flow is driven to pass through each group of air inlet channels 3021 and air exhaust channels 3022 and flow in the scraper 5, thereby dissipating the heat inside the heat dissipation layer 104 and improving the heat dissipation effect.

[0046] The outer wall of the sealed heat dissipation mechanism 3 is provided with meshing teeth 303, and the transmission shaft 2 is connected to the meshing teeth 303 through the transmission structure. The transmission structure outside the transmission shaft 2 is the transmission gear 203, and the transmission gear 203 is meshed with the meshing teeth 303. At this time, the permanent magnet motor 1 is used in a dry environment, and doubles the driving force of the sealed heat dissipation mechanism 3 to rotate.

[0047] In the above embodiments, please refer to Figure 1As shown in the figure, the bottom end of the permanent magnet motor 1 is connected to a support frame 102 and a stabilizing frame 103, a sleeve is installed inside the support frame 102, and the transmission structure includes a transmission belt 101 and a transmission shaft 2 connected to the outside of the output end of the permanent magnet motor 1, the transmission belt 101 is connected to the transmission shaft 2 for transmission, the support frame 102 limits the transmission shaft 2 through the sleeve, the bottom end of the positioning ring 4 is connected to a support rod, and the positioning ring 4 is fixedly connected to the stabilizing frame 103 through the support rod.

[0048] Second embodiment:

[0049] See also Figure 13 to Figure 14 The transmission mechanism on the outside of the transmission shaft 2 is a sleeve 204, and the outside of the sleeve 204 is connected with teeth matching the meshing teeth 303. The sleeve 204 is transmission-connected with the meshing teeth 303, and both ends of the sleeve 204 are in contact with the outer walls of the two sets of connecting sleeves 401. A heat dissipation guide plate 205 is installed on the outside of the sleeve 204, and the heat dissipation guide plate 205 penetrates the transmission shaft 2 and extends to the inside of the sleeve 204, thereby increasing the contact area between the airflow inside the sleeve 204 and the heat dissipation guide plate 205, and can seal the heat dissipation position, reduce the external moist air from entering the heat dissipation layer 104, and reduce the pollution to the heat dissipation layer 104.

[0050] During use, first connect the permanent magnet motor 1 to an external power source, and connect the output end of the permanent magnet motor 1 to an external device, start the permanent magnet motor 1, and the output end of the permanent magnet motor 1 outputs to the external device. At the same time, the transmission shaft 2 is driven to rotate by the permanent magnet motor 1, and the transmission shaft 2 drives the outer transmission structure and fan blades to rotate. The transmission mechanism drives the sealed heat dissipation mechanism 3 to rotate through the meshing teeth 303, thereby driving multiple groups of scrapers 5 to rotate on the outside of the heat dissipation layer 104. At this time, the air supply fan blades 201 first drive the external airflow into a group of positioning rings 4. The group of positioning rings 4 are aligned with the multiple groups of air inlet channels 3021 at the end of the sealed heat dissipation mechanism 3, and the positioning ring 4 is through the inner groove 402, so as to send the airflow into the air inlet channel 3021 inside each group of cleaning rods 302, and the air supply channel is connected with the air inlet hole 502 on the side of each group of scrapers 5, so that the airflow enters the heat dissipation layer 104 through the air inlet hole 502, and the airflow The air is blown onto the heat sink 105 to dissipate heat for the heat sink 105, and at the same time, as the sealed heat dissipation mechanism 3 rotates, the scraper 5 is moved to a position away from the hot air, and the air suction groove 503 on the surface of the next group of scrapers 5 is close to the hot air position, and at this time, the exhaust fan blades 202 drive the air flow to be extracted from the inside of another group of positioning rings 4, and this group of positioning rings 4 is connected with the exhaust channel 3022, and the exhaust channel 3022 is connected with the air inlet 502 at the top of the exhaust groove 503, so that the air located outside the exhaust groove 503 can be extracted and sent to the outside of the sealed heat dissipation mechanism 3, thereby improving the heat dissipation efficiency, and as the sealed heat dissipation mechanism 3 rotates, the hot air can be pushed to the outside of the exhaust groove 503, thereby improving the heat dissipation efficiency, and through the rotation of the scraper 5, the air entering the sealed heat dissipation mechanism 3 can be disturbed, and in conjunction with the air suction of the exhaust groove 503 and the airflow discharged from the exhaust hole 501, a circulating airflow is formed between the two groups of scrapers 5 to improve the heat dissipation effect.

[0051] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A dual-rotor permanent magnet motor for both wet and dry use, comprising a permanent magnet motor (1), characterized in that: A fixed structure is installed at the bottom end of the permanent magnet motor (1); a heat dissipation layer (104) is provided on the outer wall of the permanent magnet motor (1); a plurality of groups of heat sinks (105) are installed on the outer side of the heat dissipation layer (104); a sealed heat dissipation mechanism (3) is sleeved on the outer side of the permanent magnet motor (1); the sealed heat dissipation mechanism (3) comprises a plurality of groups of staggered sealing plates (301) and cleaning rods (302); a plurality of groups of scrapers (5) are installed on the inner wall of each group of cleaning rods (302); the scrapers (5) are located between two groups of heat sinks (105); two groups of exhaust holes (501) and a group of air inlet holes (502) are respectively provided on both sides of the scrapers (5); the two groups of exhaust holes (501) are located at two ends of the scrapers (5); and the exhaust holes (501) are aligned with the outer wall of the heat sink (105); An air suction groove (503) is provided at the bottom end of the air inlet hole (502), and the air suction groove (503) is in contact with the outer wall of the heat dissipation layer (104). An air inlet channel (3021) and an air extraction channel (3022) are provided on the inner wall of the cleaning rod (302). The air inlet channel (3021) is connected to the exhaust hole (501), and the air extraction channel (3022) is connected to the air inlet hole (502). Two groups of positioning rings (4) are sleeved on the outer side of the scraper (5), and the two groups of positioning rings (4) are aligned and connected with the air inlet channel (3021) and the air extraction channel (3022) respectively. A transmission structure is connected to the outer side of the transmission shaft (2). A meshing tooth (303) is provided on the outer wall of the sealing heat dissipation mechanism (3), and the transmission shaft (2) is transmission-connected to the meshing tooth (303) through the transmission structure.

2. The wet / dry dual-rotor permanent magnet motor according to claim 1, characterized in that: The bottom end of the permanent magnet motor (1) is connected to a support frame (102) and a stabilizing frame (103); a collar is installed inside the support frame (102); the transmission structure comprises a transmission belt (101) and a transmission shaft (2) connected to the outside of the output end of the permanent magnet motor (1); the transmission belt (101) is transmission-connected to the transmission shaft (2); the support frame (102) limits the transmission shaft (2) via the collar; the bottom end of the positioning ring (4) is connected to a support rod; the positioning ring (4) is fixedly connected to the stabilizing frame (103) via the support rod.

3. The wet and dry dual-rotor permanent magnet motor according to claim 1, characterized in that: An air supply blade (201) and an air extraction blade (202) are installed on the outside of the transmission shaft (2), and the air supply blade (201) and the air extraction blade (202) are respectively fitted with the side surfaces of the two groups of positioning rings (4).

4. The wet and dry dual-rotor permanent magnet motor according to claim 3 is characterized in that: The positioning ring (4) is connected to the end channel of the cleaning rod (302) through a connecting sleeve (401); the air supply blades (201) and the air exhaust blades (202) are connected to the positioning ring (4) through the connecting sleeve (401); the transmission shaft (2) passes through the slots (402) of the two groups of positioning rings (4); the inner sides of the two groups of positioning rings (4) are provided with connecting sleeves (401); and the relative positions of the two groups of positioning rings (4) are provided with slots (402).

5. The wet / dry dual-rotor permanent magnet motor according to claim 1, characterized in that: The outer side of the sealing heat dissipation mechanism (3) is provided with a side ring (304) on the outer wall of the positioning ring (4), and the side ring (304) is in contact with the inner wall of the positioning ring (4). The sealing heat dissipation mechanism (3) is provided with sealing rings (305) on both sides of each group of positioning rings (4), and the sealing rings (305) are fixed on the outer side of the side ring (304).

6. The wet / dry dual-rotor permanent magnet motor according to claim 1, characterized in that: The transmission structure outside the transmission shaft (2) is a transmission gear (203), and the transmission gear (203) is meshed with the meshing teeth (303). At this time, the permanent magnet motor (1) is used in a dry environment.

7. The wet / dry dual-rotor permanent magnet motor according to claim 1, characterized in that: The transmission mechanism on the outside of the transmission shaft (2) is a sleeve (204), the outside of the sleeve (204) is connected with teeth matching the meshing teeth (303), the sleeve (204) is transmission-connected with the meshing teeth (303), and the two ends of the sleeve (204) are in contact with the outer walls of the two groups of connecting sleeves (401).

8. The wet / dry dual-rotor permanent magnet motor according to claim 7, characterized in that: A heat dissipation guide plate (205) is installed on the outer side of the sleeve (204), and the heat dissipation guide plate (205) penetrates the transmission shaft (2) and extends to the inner side of the sleeve (204), thereby increasing the contact area between the airflow inside the sleeve (204) and the heat dissipation guide plate (205).

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