Plastic package waterproof claw pole permanent magnet synchronous motor

Abstract

The utility model relates to synchronous motor technical field provides a kind of plastic package waterproof claw pole permanent magnet synchronous motor, including casing, machine cover, stator is installed in the casing, the stator is provided with terminal, the terminal electrically connected has lead wire, the stator, the stator outer sleeve is equipped with plastic package layer, the terminal is wrapped in the plastic package layer, the fixed connection of the stator has claw, rotor is installed in the casing, the rotor inner sleeve is equipped with shaft, the rotor with the fixed connection of the shaft.The utility model in, by setting up plastic package layer will stator, terminal and lead wire seal protection, effectively insulate water vapor invasion, prevent short circuit and corrosion, significantly improve the operating stability and reliability of motor in humid or harsh environment;Meanwhile, claw is fixed on stator, cooperate the overall structure of casing and machine cover, further enhance the protection level of motor, prolong service life, with good waterproof performance, structural strength and application adaptability.

Description

Technical Field

[0001] This utility model relates to the field of synchronous motor technology, and in particular to a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor. Background Technology

[0002] With the development of modern industry and the increasing demands for the performance of automated equipment, permanent magnet synchronous motors have been widely used in many fields, such as home appliances, automotive drive systems, and precision machinery, due to their high efficiency, high power density, and excellent control characteristics. However, in these applications, the motors often need to operate in humid, dusty, or other harsh environments, which places higher demands on the motor's sealing, corrosion resistance, and operational stability. Although traditional synchronous motors achieve basic physical protection through metal casings and end caps, they are still insufficient in the face of increasingly complex working environments.

[0003] In traditional synchronous motor designs, the stator windings are connected to an external power source via leads. These electrical connection points often become major pathways for moisture intrusion, increasing the risk of internal short circuits or insulation failure. Furthermore, critical internal components such as pole claws are typically exposed to direct air exposure, making them susceptible to moisture, dust, and other external factors, which in turn affect the motor's normal operation and lifespan.

[0004] The purpose of this invention is to solve the problem that traditional claw pole synchronous motors are easily affected by moisture, leading to malfunctions. Utility Model Content

[0005] The purpose of this invention is to solve the problem that traditional claw-pole synchronous motors are easily affected by moisture, leading to malfunctions. This invention adopts the following technical solution:

[0006] A plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor includes a housing, a cover, and a bracket. A stator is installed inside the housing, and the stator is provided with terminals. The terminals are electrically connected to leads. The stator is covered with a plastic encapsulation layer, and the terminals are wrapped in the plastic encapsulation layer. The stator or the bracket is provided with pole claws.

[0007] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, a rotor is installed inside the housing, and a rotating shaft is fitted inside the rotor. The rotor is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the housing and the cover. The parts of the housing and the cover that connect to the rotor are either closed or have openings.

[0008] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, the housing and / or cover have protrusions for storing lubricating oil, and a bearing is installed inside the protrusion, with the bearing sleeved outside the rotating shaft.

[0009] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, an insulating plate is installed inside the boss, and the insulating plate is sleeved outside the bearing.

[0010] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, the claws are installed inside the stator and do not come into contact with the outside.

[0011] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, the inner wall of the stator is provided with at least one groove, and the pole claws are installed in the groove.

[0012] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, the lead wires are led out from the plastic encapsulation layer and connected to an external power source, and a sealed structure design is adopted between the lead wires and the plastic encapsulation layer.

[0013] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, the lead wires are led out from the plastic encapsulation layer and connected to an external power source, and a sealed structure design is adopted between the lead wires and the plastic encapsulation layer.

[0014] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, the magnetic shield is made of non-magnetic high-strength plastic, non-ferromagnetic metal, and ceramic materials, which is used to isolate the bearing from magnetic field interference and enhance the motor's corrosion resistance and service life.

[0015] As described above, in a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, a sealing ring is provided between the housing and the cover. The sealing ring is installed inside the housing to enhance the overall waterproof and dustproof rating of the motor.

[0016] Implementing the embodiments of this utility model has the following beneficial effects:

[0017] 1. In this utility model, the stator, terminals and leads are sealed and protected by a plastic sealing layer, which effectively isolates moisture intrusion, prevents short circuits and corrosion, and significantly improves the stability and reliability of the motor in humid or harsh environments. At the same time, the pole claws are fixed on the stator, and together with the overall structure of the housing and cover, the protection level of the motor is further enhanced, the service life is extended, and it has good waterproof performance, structural strength and application adaptability.

[0018] In summary, this invention solves the problem that traditional claw pole synchronous motors are easily affected by moisture, leading to malfunctions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor according to this utility model.

[0021] Figure 2 This is an exploded view of a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor according to this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the cover of a plastic-sealed waterproof claw-pole permanent magnet synchronous motor according to this utility model.

[0023] Figure 4 This is a schematic diagram of the stator structure of a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor according to this utility model.

[0024] Figure 5 This is an exploded view of the stator of a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor according to this utility model.

[0025] Figure 6 yes Figure 5 A magnified structural diagram of point A.

[0026] Figure 7 This is a schematic diagram of a support structure equipped with pole claws.

[0027] Figure 8 This is a schematic diagram of the structure of a plastic-sealed waterproof claw pole permanent magnet synchronous motor, wherein the housing and cover have through holes.

[0028] As shown in the figure:

[0029] 1. Housing; 2. Cover; 3. Boss; 4. Magnetic shield; 5. Bearing; 6. Stator; 61. Plastic sealant; 62. Pole claw; 63. Terminal; 64. Lead wire; 65. Slot; 7. Rotor; 8. Bracket. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1 to 6As shown, this utility model proposes a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, including a housing 1 and a cover 2. The housing 1 is provided with pole claws, and a stator 6 is installed inside the housing 1. The stator 6 is provided with terminals 63, and the terminals 63 are electrically connected to leads 64. The stator 6 is covered with a plastic-encapsulated layer 61, and the terminals 63 are wrapped inside the plastic-encapsulated layer 61. The stator 6 is fixedly connected to the pole claws 62. Encasing the terminals 63 and related leads 64 forms a waterproof barrier, effectively preventing the intrusion of external moisture. The pole claws 62 are fixedly connected to the stator 6. The housing 1 and the cover 2 together constitute the overall sealed structure of the motor, further enhancing its protective capabilities. This structure can ensure the stable operation of the motor in humid or harsh environments, avoiding faults such as short circuits and corrosion caused by moisture infiltration, thereby improving the working reliability of the synchronous motor.

[0032] Optionally, in some embodiments, the motor includes a housing 1 and a cover 2. The housing 1 is provided with pole claws, and a stator 6 is installed inside the housing 1. The stator 6 is provided with terminals 63, and the terminals 63 are electrically connected to leads 64. The stator 6 is covered with a plastic sealing layer 61, and the terminals 63 are encased in the plastic sealing layer 61. A bracket 8 is provided with pole claws 62. The pole claws 62 are mounted on the bracket 8, which serves as an independent structural component to support the pole claws and position them appropriately inside the stator to participate in constructing the motor's magnetic circuit and optimizing the magnetic field distribution. Mounting the pole claws 62 on the bracket 8 achieves a modular design, making the pole claws a detachable and replaceable independent component. When the pole claws 62 need to be repaired or replaced due to wear or damage, it is not necessary to disassemble the entire motor structure; only the bracket and pole claw parts need to be processed, which greatly improves maintenance efficiency and reduces maintenance costs.

[0033] Optionally, in some embodiments, the molding layer 61 is made of thermosetting plastic or epoxy resin material.

[0034] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, a rotor 7 is installed inside the housing 1, and a rotating shaft 71 is fitted inside the rotor 7. The rotor 7 is fixedly connected to the rotating shaft 71, and the rotating shaft 71 is rotatably connected to the housing 1 and the cover 2. The portions of the housing 1 and the cover 2 connected to the rotor 7 are enclosed. The rotating shaft 71 forms a rotatable connection structure with the housing 1 and the cover 2, enabling the motor to rotate and output power normally. The fixed connection between the rotor 7 and the rotating shaft 71 ensures the stability of power transmission; at the same time, the enclosed design of the portions of the housing 1 and the cover 2 connected to the rotor 7 effectively prevents external moisture or impurities from entering the motor and affecting rotor operation, improving overall sealing and operational safety.

[0035] Optionally, in some embodiments, the portions of the housing 1 and the cover 2 that connect to the rotor 7 are designed with openings. These openings allow the rotor 7 to pass through the housing and cover, ensuring that the rotor 7 can be correctly installed inside the stator 6 and rotate freely without requiring additional assembly space. This simplifies the assembly process of the motor's internal components, improves assembly efficiency, and helps to precisely control the rotor's position, ensuring dynamic balance and stability during motor operation.

[0036] Optionally, in some embodiments, the housing 1 and the cover 2 are provided with bosses 3, which are used to store lubricating oil. A bearing 5 is installed inside the bosses 3. The bosses 3 are made of metal or plastic, and the bearing 5 is sleeved on the outside of the rotating shaft 71. The bosses 3 not only provide support but also store lubricating oil, providing lubrication for the rotating parts inside the motor. The bearing 5 is installed inside the bosses 3 and sleeved on the outside of the rotating shaft 71, enabling the rotating shaft 71 to rotate smoothly and reducing friction and wear during operation. The presence of lubricating oil effectively extends the service life of the bearing 5.

[0037] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, a magnetic shielding plate 4 is installed within the boss 3, and the magnetic shielding plate 4 is sleeved on the outside of the bearing 5. The magnetic shielding plate 4 is made of non-magnetic high-strength plastic, non-ferromagnetic metal, or ceramic material, and is used to isolate the bearing 5 from magnetic field interference, while enhancing the corrosion resistance and service life of the motor. Due to its non-magnetic and good insulation properties, the magnetic shielding plate 4 can also reduce eddy current losses and improve the motor's operating efficiency.

[0038] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, the pole claw 62 is installed inside the stator 6 and is not in contact with the outside world. This arrangement ensures that the pole claw 62 can operate in a relatively closed and protected environment, avoiding the influence of external environmental factors such as moisture, dust or other contaminants on the pole claw.

[0039] Optionally, in some embodiments, the pivot 71 and the claw 62 are integrally formed with the stator 6 by an insert injection molding process.

[0040] Optionally, in some embodiments, the inner wall of the stator 6 is provided with at least one slot 65, and the pole claw 62 is installed in the slot 65. This design allows the pole claw to be firmly fixed inside the stator, ensuring the mechanical stability and magnetic circuit consistency of the motor during operation. The design of the slot 65 also facilitates precise control of the position and angle of the pole claw, optimizes the magnetic field distribution inside the motor, and improves the motor's operating efficiency and output performance. By embedding the pole claw 62 into the slot 65 of the stator 6, the electromagnetic interaction between the rotor and the stator can be effectively enhanced, while reducing unnecessary vibration and noise.

[0041] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, the lead 64 extends from the plastic encapsulation layer 61 and is connected to an external power source. A sealed structure is designed between the terminal, the lead 64, and the plastic encapsulation layer 61. To ensure the waterproof and moisture-proof performance of the entire motor system, a sealed structure is used for the connection between the lead 64 and the plastic encapsulation layer 61. This sealed structure effectively prevents external moisture and contaminants from penetrating into the stator through the lead inlet, ensuring the safety and stability of the electrical connection. The sealed design not only protects the connection point between the lead and the terminal 63 from environmental factors but also maintains the overall protection level of the internal components of the motor.

[0042] Furthermore, as a preferred embodiment of the invention and not a limitation thereof, a sealing ring is provided between the housing 1 and the cover 2. The sealing ring is installed inside the housing 1 to enhance the overall waterproof and dustproof rating of the motor. When the housing 1 and the cover 2 are tightly joined, the sealing ring can fill the tiny gap between them, forming an effective barrier to prevent external moisture and dust from entering the motor. This design enhances the overall waterproof and dustproof performance of the motor through physical isolation, ensuring that internal electronic components and mechanical parts can operate in a cleaner, drier environment, avoiding short circuits, corrosion, or other malfunctions caused by moisture or dust.

[0043] Optionally, in some embodiments, the rotor 1 is equipped with gears, the bracket 8 is provided with a gear set, the gear set meshes with the gears, and the rotor 7 drives the gear set to rotate through the gears. The gear set is used to drive the power output end of the motor to rotate.

[0044] Optionally, in some embodiments, the rotor 1 is equipped with a ratchet, and the rotor 7 drives the gear set to rotate unidirectionally via the ratchet.

[0045] Example 1:

[0046] This utility model proposes a plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor, including a housing 1 and a cover 2. A stator 6 is installed inside the housing 1, and the stator 6 is provided with terminals 63, which are electrically connected to leads 64. A plastic-encapsulated layer 61, made of thermosetting plastic or epoxy resin, is fitted over the stator 6. The terminals 63 are encased within the plastic-encapsulated layer 61, and claws 62 are fixedly connected to the stator 6. Encapsulating the terminals 63 and related leads 64 forms a waterproof barrier, effectively preventing the intrusion of external moisture. The claws 62 are fixedly connected to the stator 6. The housing 1 and the cover 2 together constitute the overall sealed structure of the motor, further enhancing its protective capabilities. This structure ensures stable operation of the motor in humid or harsh environments, avoiding short circuits, corrosion, and other faults caused by moisture infiltration, thereby improving the operational reliability of the synchronous motor.

[0047] A sealing ring is installed between the housing 1 and the cover 2, inside the housing 1, to enhance the overall waterproof and dustproof rating of the motor. When the housing 1 and cover 2 are tightly closed, the sealing ring fills the tiny gap between them, forming an effective barrier to prevent external moisture and dust from entering the motor. This design enhances the overall waterproof and dustproof performance of the motor through physical isolation, ensuring that internal electronic components and mechanical parts can operate in a cleaner, drier environment, avoiding short circuits, corrosion, or other malfunctions caused by moisture or dust.

[0048] The pole claw 62 is installed inside the stator 6 and is not in contact with the outside world. This arrangement ensures that the pole claw 62 can operate in a relatively closed and protected environment, avoiding the influence of external environmental factors such as moisture, dust or other contaminants on the pole claw.

[0049] Lead 64 extends from the plastic encapsulation layer 61 and connects to an external power source. A sealed structure is used between lead 64 and the plastic encapsulation layer 61. To ensure the waterproof and moisture-proof performance of the entire motor system, a sealed structure is used for the connection between lead 64 and the plastic encapsulation layer 61. This sealed structure effectively prevents external moisture and contaminants from penetrating into the stator through the lead inlet, ensuring the safety and stability of the electrical connection. The sealed design not only protects the connection point between the lead and terminal 63 from environmental factors but also maintains the overall protection level of the internal components of the motor.

[0050] A rotor 7 is installed inside the housing 1, and a rotating shaft 71 is fitted inside the rotor 7. The rotor 7 is fixedly connected to the rotating shaft 71, and the rotating shaft 71 is rotatably connected to the housing 1 and the cover 2. The connection between the housing 1 and the cover 2 and the rotor 7 is a closed design. The rotating shaft 71 forms a rotatable connection structure with the housing 1 and the cover 2, enabling the motor to rotate and output power normally. The fixed connection between the rotor 7 and the rotating shaft 71 ensures the stability of power transmission; at the same time, the closed design of the connection between the housing 1 and the cover 2 and the rotor 7 effectively prevents external moisture or impurities from entering the motor and affecting rotor operation, improving overall sealing and operational safety. The housing 1 and the cover 2 have protrusions 3, which are used to store lubricating oil. A bearing 5 is installed inside the protrusion 3 and is fitted outside the rotating shaft 71. The protrusion 3 not only provides support but also stores lubricating oil, providing lubrication for the rotating parts inside the motor. Bearing 5 is installed inside boss 3 and sleeved around the outer periphery of shaft 71, enabling shaft 71 to rotate smoothly and reducing friction and wear during operation. The presence of lubricating oil effectively extends the service life of bearing 5. A magnetic shielding plate 4 is installed inside boss 3 and sleeved around bearing 5. The magnetic shielding plate 4 is made of non-magnetic high-strength plastic, non-ferromagnetic metal, and ceramic materials, used to isolate the bearing 5 from magnetic field interference, while also enhancing the motor's corrosion resistance and service life. Due to its non-magnetic nature and good insulation properties, the magnetic shielding plate 4 also reduces eddy current losses and improves motor operating efficiency.

[0051] The inner wall of the stator 6 is provided with at least one slot 65, and the pole claws 62 are installed in the slot 65. This design allows the pole claws to be firmly fixed inside the stator, ensuring the mechanical stability and magnetic circuit consistency of the motor during operation. The design of the slot 65 also facilitates precise control of the position and angle of the pole claws, optimizes the magnetic field distribution inside the motor, and improves the motor's operating efficiency and output performance. By embedding the pole claws 62 into the slot 65 of the stator 6, the electromagnetic interaction between the rotor and the stator can be effectively enhanced, while reducing unnecessary vibration and noise.

[0052] The implementation method of Example 2 is as follows:

[0053] The difference between Embodiment 2 and Embodiment 1 lies in that Embodiment 2 includes a housing 1 and a cover 2. The housing 1 is equipped with pole claws, and a stator 6 is installed inside the housing 1. The stator 6 is equipped with terminals 63, and the terminals 63 are electrically connected to leads 64. The stator 6 is covered with a plastic sealing layer 61, and the terminals 63 are wrapped inside the plastic sealing layer 61. A bracket 8 is equipped with pole claws 62. The pole claws 62 are mounted on the bracket 8, which serves as an independent structural component to support the pole claws and position them appropriately inside the stator to participate in constructing the motor's magnetic circuit and optimizing the magnetic field distribution. Mounting the pole claws 62 on the bracket 8 achieves a modular design, making the pole claws a detachable and replaceable independent component. When the pole claws 62 need to be repaired or replaced due to wear or damage, it is not necessary to disassemble the entire motor structure; only the bracket and pole claw parts need to be processed, which greatly improves maintenance efficiency and reduces maintenance costs.

[0054] The implementation method of Example 3 is as follows:

[0055] The difference between Embodiment 3 and Embodiment 1 is that the connection between the housing 1 and cover 2 and the rotor 7 is an open design. This open design allows the rotor 7 to pass through the housing 1 and cover 2, ensuring that the rotor 7 can be correctly installed inside the stator 6 and rotate freely without additional assembly space. This simplifies the assembly process of the internal components of the motor, improves assembly efficiency, and helps to precisely control the position of the rotor 7, ensuring the dynamic balance and stability of the motor during operation.

[0056] Specifically, the working principle of this invention is as follows:

[0057] The plastic-encapsulated waterproof claw-pole permanent magnet synchronous motor completely encapsulates key electrical components such as the stator 6, terminals 63, and leads 64 within a plastic encapsulation layer 61 made of thermosetting plastic or epoxy resin on the outside of the stator, forming a highly efficient waterproof barrier that effectively prevents the intrusion of external moisture and contaminants. A sealing ring is provided between the housing 1 and the cover 2 to further enhance the overall sealing performance, preventing dust and moisture from entering the interior from the housing connection and ensuring stable operation of the motor in humid or dusty environments.

[0058] The pole claws 62 inside the motor are embedded in the slots 65 on the inner wall of the stator 6 and fixed inside the stator, preventing contact with the outside environment and thus improving its protection level and avoiding the influence of the external environment. The rotor 7 is mounted between the housing 1 and the cover 2 via the shaft 71 and adopts a closed structure design to prevent moisture from entering the motor through the shaft. The boss 3 is equipped with a bearing 5 and a lubricating oil storage structure, providing support and continuous lubrication for the shaft and ensuring stable operation of the motor over a long period of time.

[0059] Inside the boss 3, there is also a magnetic isolation plate 4 sleeved on the outside of the bearing 5. This magnetic isolation plate is made of non-magnetic high-strength plastic, non-ferromagnetic metal, or ceramic material, which can effectively isolate the magnetic field from the bearing, prevent electro-corrosion, and improve corrosion resistance and insulation performance. The lead wire 64 is led out from the plastic sealing layer 61 and connected to the external power supply. A sealed structure design is adopted to ensure power transmission while maintaining the overall waterproof and moisture-proof capability of the motor. This integrated sealing and protection design gives the motor high reliability, long life and strong environmental adaptability.

[0060] In summary, this invention solves the problem that traditional claw pole synchronous motors are easily affected by moisture, leading to malfunctions.

[0061] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0062] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A plastic package waterproof claw pole permanent magnet synchronous motor, comprising a shell (1), a cover (2), a bracket (8), characterized in that, The shell (1) is internally provided with a stator (6), the stator (6) is provided with a terminal (63), the terminal (63) is electrically connected with a lead wire (64), the stator (6) is externally provided with a plastic sealing layer (61), the terminal (63) is wrapped in the plastic sealing layer (61), the stator (6) or the bracket (8) is provided with a pole claw (62).

2. The plastic-potted waterproof claw pole permanent magnet synchronous motor of claim 1, wherein, The shell (1) is internally provided with a rotor (7), the rotor (7) is internally provided with a rotating shaft (71), the rotor (7) is fixedly connected with the rotating shaft (71), the rotating shaft (71) is rotatably connected with the shell (1) and the cover (2), the part of the shell (1) and the cover (2) connected with the rotor (7) is designed as a closed or open hole.

3. The plastic-potted waterproof claw pole permanent magnet synchronous motor of claim 2, wherein, The shell (1) and / or the cover (2) is provided with a boss (3), the boss (3) is used for storing lubricating oil, the boss (3) is internally provided with a bearing (5), the bearing (5) is externally provided with the rotating shaft (71).

4. The plastic-potted waterproof claw pole permanent magnet synchronous motor of claim 3, wherein, The boss (3) is internally provided with a magnetic shielding plate (4), the magnetic shielding plate (4) is externally provided with the bearing (5).

5. The plastic-potted waterproof claw pole permanent magnet synchronous motor of claim 1, wherein, The pole claw (62) is internally provided in the stator (6) and does not contact the outside.

6. The plastic-potted waterproof claw pole permanent magnet synchronous motor of claim 1, wherein, The inner wall of the stator (6) is provided with at least one groove (65), and the pole claw (62) is installed in the groove (65).

7. The plastic-potted waterproof claw pole permanent magnet synchronous motor of claim 1, wherein, The lead wire (64) is led out of the plastic sealing layer (61) and connected with an external power supply, and a sealing structure is arranged between the lead wire (64) and the plastic sealing layer (61).

8. The plastic-potted waterproof claw pole permanent magnet synchronous motor of claim 1, wherein, The plastic sealing layer (61) is made of thermosetting plastic or epoxy resin material.

9. The plastic-potted waterproof claw pole permanent magnet synchronous motor of claim 1, wherein, The shell (1) and the cover (2) are provided with a sealing ring, the sealing ring is installed in the shell (1) and used for enhancing the waterproof and dustproof level of the whole motor.

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