Waterproof structure of stator coil of permanent magnet synchronous motor

Abstract

The utility model discloses a waterproof structure of a stator coil of a permanent magnet synchronous motor, which comprises a stator iron core, a plurality of uniformly distributed coil bodies are movably connected on the inner wall of the stator iron core, the stator coil is wound on the outer wall of the coil bodies, and the stator coil is fixed with the coil bodies through epoxy resin glue. The two ends of the stator coil are provided with the left wire outlet end and the right wire outlet end respectively, the outer wall of the coil body is provided with the first protection cover and the second protection cover respectively, the stator coil is fixed through epoxy resin, the epoxy resin glue has good heat dissipation and heat conduction effects while it is guaranteed that the stator coil is fixed, and the first protection cover and the second protection cover are used in cooperation. The stator coil is protected, water can be effectively discharged, dust can be effectively prevented, epoxy resin is used in a matched mode, a protection layer is formed outside the stator coil through injection of an avoiding groove, the stator coil is fixed through a first protection cover and a second protection cover, and the use stability of the stator coil is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet synchronous motor stator coils, in particular to a waterproof structure for a permanent magnet synchronous motor stator coil. Background Technique

[0002] A permanent magnet synchronous motor is a motor that operates based on the principle of magnetic field synchronization. It has characteristics such as high efficiency, high performance, and high reliability. Compared with traditional asynchronous motors, permanent magnet synchronous motors have higher efficiency, larger torque density, faster response speed, and can achieve high-precision control. At the same time, since permanent magnet synchronous motors do not require external excitation, they can also reduce energy consumption and emissions, and are usually used in application fields that require high-precision control, such as machine tools, wind power generation, electric vehicles, etc.

[0003] During the production of existing permanent magnet synchronous motor stator coils, the stator coil wound with wires is usually fixed to the stator core and used in cooperation with the S-pole permanent magnet and N-pole permanent magnet on the stator. However, the wires on the stator coil are in a bare state. After long-term use of the motor, the stator coil may be damaged by water and cannot be used normally, and it is easy to cause dust accumulation on the stator coil or corrosion of the stator coil, affecting the service life of the motor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waterproof structure for a permanent magnet synchronous motor stator coil. By fixing the stator coil with epoxy resin, while ensuring the fixation of the stator coil, the epoxy resin adhesive has good heat dissipation and heat conduction effects. In cooperation with the use of the first protective cover and the second protective cover, the stator coil will be protected, and water and dust can be effectively prevented. In cooperation with the use of epoxy resin, it is injected through the avoidance groove to form a protective layer on the outside of the stator coil, and the first protective cover and the second protective cover are fixed to improve the stability of the stator coil during use.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A waterproof structure for a permanent magnet synchronous motor stator coil, including a stator core, on the inner wall of the stator core, a plurality of uniformly distributed coil bodies are movably connected, on the outer wall of the coil body, a stator coil is wound, the stator coil is fixed to the coil body through epoxy resin adhesive, the two ends of the stator coil are respectively provided with a left lead-out end and a right lead-out end, on the outer wall of the coil body, a first protective cover and a second protective cover are respectively provided, on the side where the first protective cover and the second protective cover are in contact, avoidance grooves are opened, the left lead-out end and the right lead-out end are located in the avoidance grooves, the first protective cover and the second protective cover are filled with an epoxy resin protective layer, and the avoidance grooves are sealed by the epoxy resin protective layer.

[0006] The beneficial effects of the present utility model are as follows: The epoxy resin glue can fix the stator coil to the coil body. The left lead end and the right lead end facilitate the connection of the stator coil. The docking between the first protective cover and the second protective cover can protect the stator coil. With the use of the epoxy resin layer, a protective layer is formed outside the stator coil, which plays a role in waterproofing and dustproofing the stator coil;

[0007] In order to achieve waterproofing and dustproofing of the stator coil;

[0008] As a further improvement of the above technical solution: Both sides of the first protective cover are fixedly connected with first positioning blocks. A docking hole is opened on one side of the first positioning block. A docking column is movably connected in the docking hole. One end of the docking column is fixedly connected with a second positioning block, and the second positioning block is fixedly connected with the second protective cover.

[0009] The beneficial effects of this improvement are as follows: By using the docking hole on the first positioning block and the docking column on the second positioning block, the first protective cover and the second protective cover can be quickly docked, improving the connection speed between the first protective cover and the second protective cover, and enabling the first protective cover and the second protective cover to be quickly connected;

[0010] In order to achieve quick and accurate connection between the first protective cover and the second protective cover;

[0011] As a further improvement of the above technical solution: A rotor is provided among multiple coil bodies. A plurality of S - pole permanent magnets and a plurality of N - pole permanent magnets are respectively fixedly connected to the outer wall of the rotor, and the plurality of S - pole permanent magnets and the plurality of N - pole permanent magnets are alternately arranged.

[0012] The beneficial effects of this improvement are as follows: Through the cooperation between the rotor and the plurality of S - pole permanent magnets and N - pole permanent magnets, the motor can work normally and stably;

[0013] In order to achieve the normal operation of the motor;

[0014] As a further improvement of the above technical solution: A plurality of uniformly distributed connection grooves are opened on the inner wall of the stator core. A connection block is slidably connected in the connection groove, and the connection block is fixedly connected with the coil body.

[0015] The beneficial effects of this improvement are as follows: By using the connection groove and the connection block, the coil body and the stator core can be quickly connected, facilitating installation and improving the installation efficiency between the coil body and the stator core;

[0016] In order to achieve quick connection of the coil body;

[0017] As a further improvement of the above technical solution: The connection block and the stator core are fixed by strong glue.

[0018] The beneficial effect of this improvement is that the connection block and the stator core can be fixed by strong glue to ensure the stability of the coil body, prevent the coil body from falling off the stator core, and avoid safety accidents caused by the falling off of the coil body in the motor.

[0019] In order to fix the coil body;

[0020] As a further improvement of the above technical solution: The total number of the multiple S - pole permanent magnets and the multiple N - pole permanent magnets is the same as that of the multiple coil bodies.

[0021] The beneficial effect of this improvement is that by using the S - pole permanent magnets and N - pole permanent magnets, they can correspond to the multiple coil bodies one by one, enabling the normal operation between the stator coil and the permanent magnet.

[0022] In order to achieve the normal operation between the coil body and the permanent magnet;

[0023] As a further improvement of the above technical solution: A rotating shaft is fixedly connected to the center position of the rotor.

[0024] The beneficial effect of this improvement is that by using the rotating shaft, the effective rotation of the rotor can be ensured, and the stable operation of the motor can be guaranteed.

[0025] In order to drive the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic three - dimensional structure provided by the present utility model; Figure 1 ;

[0027] Figure 2 is a schematic three - dimensional structure provided by the present utility model; Figure 2 ;

[0028] Figure 3 is a top view provided by the present utility model;

[0029] Figure 4 is provided by the present utility model Figure 3 is a schematic three - dimensional sectional view at A - A in;

[0030] Figure 5 is provided by the present utility model Figure 4 is an enlarged view at A in;

[0031] Figure 6 is a front view provided by the present utility model.

[0032] In the figure, 1 is the stator core; 11 is the coil body; 12 is the stator coil; 13 is the epoxy resin glue; 14 is the left lead end; 15 is the right lead end; 16 is the first protective cover; 17 is the second protective cover; 18 is the avoidance groove; 19 is the epoxy resin protective layer; 21 is the first positioning block; 22 is the docking hole; 23 is the docking column; 24 is the second positioning block; 31 is the rotor; 32 is the S-pole permanent magnet; 33 is the N-pole permanent magnet; 41 is the connection groove; 42 is the connection block; 51 is the strong glue; 61 is the rotating shaft. Detailed implementation manners

[0033] To enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present utility model.

[0034] As Figures 1 to 6As shown in the figure, a waterproof structure for the stator coil of a permanent magnet synchronous motor provided by an embodiment of the present utility model includes a stator core 1. A plurality of uniformly distributed coil bodies 11 are movably connected to the inner wall of the stator core 1. A stator coil 12 is wound around the outer wall of the coil body 11. The stator coil 12 is fixed to the coil body 11 by an epoxy resin adhesive 13. By using the epoxy resin adhesive 13, the stator coil 12 can be fixed to the coil body 11 to ensure the stability of the stator coil 12. At the same time, the epoxy resin adhesive 13 has good heat conduction and heat dissipation effects. A left lead-out end 14 and a right lead-out end 15 are respectively provided at both ends of the stator coil 12. The left lead-out end 14 and the right lead-out end 15 are convenient for connecting and energizing the electronic coil. A first protective cover 16 and a second protective cover 17 are respectively provided on the outer wall of the coil body 11. The docking between the first protective cover 16 and the second protective cover 17 can protect the stator coil 12. Avoidance grooves 18 are opened on one side of the first protective cover 16 and the second protective cover 17 in contact with each other. The left lead-out end 14 and the right lead-out end 15 are located in the avoidance grooves 18. An epoxy resin protective layer 19 is filled in the first protective cover 16 and the second protective cover 17. The avoidance grooves 18 are sealed by the epoxy resin protective layer 19. The avoidance grooves 18 can facilitate the docking of the first protective cover 16 and the second protective cover 17 and will not be blocked by the left lead-out end 14 and the right lead-out end 15. In cooperation with the use of the avoidance grooves 18, the first protective cover 16 and the second protective cover 17 are filled with the epoxy resin protective layer 19 to form a protective layer outside the stator coil 12, which can effectively prevent water and dust. First positioning blocks 21 are fixedly connected to both sides of the first protective cover 16. A docking hole 22 is opened on one side of the first positioning block 21. A docking post 23 is movably connected in the docking hole 22. One end of the docking post 23 is fixedly connected to a second positioning block 24. The second positioning block 24 is fixedly connected to the second protective cover 17. By docking the docking posts 23 on the two second positioning blocks 24 with the docking holes 22 on the two first positioning blocks 21, the first protective cover 16 and the second protective cover 17 can be quickly and accurately docked, improving the installation efficiency. A rotor 31 is commonly provided among the plurality of coil bodies 11. A plurality of S-pole permanent magnets 32 and a plurality of N-pole permanent magnets 33 are respectively fixedly connected to the outer wall of the rotor 31. The plurality of S-pole permanent magnets 32 and the plurality of N-pole permanent magnets 33 are alternately arranged. The total number of the plurality of S-pole permanent magnets 32 and the plurality of N-pole permanent magnets 33 is the same as that of the plurality of coil bodies 11. By the combined use of the plurality of S-pole permanent magnets 32, the plurality of N-pole permanent magnets 33 and the plurality of stator coils 12, the normal operation of the motor is ensured. A plurality of uniformly distributed connection grooves 41 are opened on the inner wall of the stator core 1. A connection block 42 is slidably connected in the connection groove 41. The connection block 42 is fixedly connected to the coil body 11. The use of the plurality of connection grooves 41 and the plurality of connection blocks 42 can enable the coil body 11 and the stator core 1 to be quickly docked. The connection block 42 and the stator core 1 are fixed by a strong glue 51, and the coil body 11 is fixed by the strong glue 51.To ensure the stability between the coil body 11 and the stator core 1 and prevent the coil body 11 from falling off, a rotating shaft 61 is fixedly connected to the center position of the rotor 31. The rotor 31 can drive the rotating shaft 61 to rotate to achieve the normal drive of the motor.

[0035] The working principle and usage process of the present utility model are as follows: When in use, first, wind the stator coil 12 around the coil body 11 and use epoxy resin glue 13 to fix the stator coil 12 to the coil body 11. Heat dissipation is carried out through the good heat conduction and heat dissipation effects of the epoxy resin glue 13. The first protective cover 16 and the second protective cover 17 are butted. At the same time of butting, the first positioning blocks 21 on both sides of the first protective cover 16 are butted with the second positioning blocks 24 on both sides of the second protective cover 17, and the docking holes 22 on the first positioning blocks 21 are butted with the docking posts 23 on the second docking blocks to achieve the preliminary connection between the first protective cover 16 and the second protective cover 17. The left lead-out end 14 and the right primary selection end are located in the avoidance groove 18. Through the avoidance groove 18, an epoxy resin protective layer 19 is filled into the first protective cover 16 and the second protective cover 17 to form a protective layer outside the stator coil 12, which can effectively prevent water, dust, and corrosion. Then, the plurality of coil bodies 11 are connected to the stator core 1 one by one. The connecting blocks 42 on the coil body 11 are butted with the connecting grooves 41 on the stator core 1, and strong glue 51 is used to fix the connecting blocks 42 to the stator core 1 to prevent the coil body 11 from falling off. In cooperation with the use of a plurality of S-pole permanent magnets 32 and a plurality of N-pole permanent magnets 33, they cooperate with the rotor 31 to ensure the normal operation of the motor, thereby realizing the usage process of the waterproof structure of the stator coil of the entire permanent magnet synchronous motor.

[0036] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0037] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A waterproof structure for a permanent magnet synchronous motor stator coil, comprising a stator core (1), characterized in that: A plurality of evenly distributed coil bodies (11) are movably connected to the inner wall of the stator core (1), a stator coil (12) is wound on the outer wall of the coil body (11), and the stator coil (12) is fixed to the coil body (11) by epoxy resin glue (13); The stator coil (12) is provided with a left wire outlet (14) and a right wire outlet (15) at both ends, and a first protective cover (16) and a second protective cover (17) are provided on the outer wall of the coil body (11). A avoidance groove (18) is provided on the contacting side of the first protective cover (16) and the second protective cover (17). The left wire outlet (14) and the right wire outlet (15) are located in the avoidance groove (18). The first protective cover (16) and the second protective cover (17) are filled with an epoxy resin protective layer (19), and the avoidance groove (18) is sealed by the epoxy resin protective layer (19).

2. The waterproof structure of a permanent magnet synchronous motor stator coil according to claim 1, characterized in that: Both sides of the first protective cover (16) are fixedly connected to first positioning blocks (21); a docking hole (22) is provided on one side of the first positioning block (21); a docking column (23) is movably connected in the docking hole (22); one end of the docking column (23) is fixedly connected to a second positioning block (24); and the second positioning block (24) is fixedly connected to the second protective cover (17).

3. The waterproof structure of a permanent magnet synchronous motor stator coil according to claim 1, characterized in that: A rotor (31) is provided between the plurality of coil bodies (11), and a plurality of S-pole permanent magnets (32) and a plurality of N-pole permanent magnets (33) are respectively fixedly connected to the outer wall of the rotor (31), and the plurality of S-pole permanent magnets (32) and the plurality of N-pole permanent magnets (33) are alternately arranged.

4. The waterproof structure of a permanent magnet synchronous motor stator coil according to claim 1, characterized in that: The inner wall of the stator core (1) is provided with a plurality of evenly distributed connection grooves (41), a connection block (42) is slidably connected in the connection groove (41), and the connection block (42) is fixedly connected to the coil body (11).

5. The waterproof structure of the stator coil of a permanent magnet synchronous motor according to claim 4, characterized in that: The connection block (42) and the stator core (1) are fixed by means of strong glue (51).

6. The waterproof structure of a permanent magnet synchronous motor stator coil according to claim 3, characterized in that: The total number of the plurality of S-pole permanent magnets (32) and the plurality of N-pole permanent magnets (33) is consistent with the number of the plurality of coil bodies (11).

7. The waterproof structure of a permanent magnet synchronous motor stator coil according to claim 3, characterized in that: A rotating shaft (61) is fixedly connected to the center of the rotor (31).

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