Rubber coating structure of motor rotor

Abstract

The utility model relates to the field of motor parts, in particular to a rubber coating structure of a motor rotor, and the rubber coating structure of the motor rotor comprises a rubber sleeve which sleeves the surface of a motor rotor main body. The rubber sleeve completely wraps the mounting groove and the permanent magnet of the rotor, so that the stability and durability of the rotor assembly are improved. The rubber sleeve is provided with the main heat dissipation holes and the auxiliary heat dissipation holes, so that the heat dissipation performance is optimized. In addition, the rubber sleeve is also provided with a mounting hole, so that the balancing weight is convenient to mount, and the dynamic balance of the rotor is realized.

Description

Technical Field

[0001] The present application relates to the field of motor components, and in particular to a rubber encapsulation structure of a motor rotor. Background Art

[0002] Common electronic rotors usually consist of a rotating shaft, an iron core and a permanent magnet. The iron core is mounted on the rotating shaft, and the permanent magnet is mounted on the iron core.

[0003] Currently, the common connection method between permanent magnets and iron cores is usually embedded or surface mounted, that is, the permanent magnets are embedded in the mounting slots on the iron core and fixed with fasteners, or the permanent magnets are directly attached to the surface of the iron core.

[0004] For the embedded installation method, since additional fasteners are required, this will cause a certain instability in the fixation of the permanent magnet. The installation method of directly attaching the permanent magnet to the surface of the core by using adhesives may also cause the adhesive to degenerate and fall off, thereby causing damage to the rotor.

[0005] Therefore, how to improve the stability of core installation is a technical problem that needs to be solved at present. Utility Model Content

[0006] In order to improve the stability of core installation, the present application provides a rubber encapsulation structure for a motor rotor.

[0007] The rubber encapsulation structure of the motor rotor provided in this application adopts the following technical solution:

[0008] A rubber encapsulation structure of a motor rotor, the motor rotor comprising a main body, a mounting groove is provided on the main body, a permanent magnet is fixedly arranged in the mounting groove; a convex portion is provided on the circumferential side of the main body;

[0009] The rubber-coated structure of the motor rotor includes a rubber sleeve, which is used to be sleeved on the surface of the main body, and the mounting groove and the permanent magnet are both located inside the rubber sleeve; a main heat dissipation hole is opened on the circumference of the rubber sleeve, and the protrusion extends to the outside of the rubber sleeve through the main heat dissipation hole.

[0010] By adopting the above technical solution, the key components of the motor rotor, such as permanent magnets and mounting slots, are placed in the rubber sleeve, so that the rubber sleeve can provide an additional layer of protection, thereby effectively improving the overall stability and service life of the rotor. At the same time, the design of the heat dissipation holes ensures that the rotor can effectively dissipate heat during operation, preventing performance degradation caused by heat accumulation.

[0011] Preferably, the rubber sleeve is further provided with auxiliary heat dissipation holes, and the auxiliary heat dissipation holes are located at positions on the rubber sleeve corresponding to the end surface of the main body.

[0012] By adopting the above technical solution, these auxiliary heat dissipation holes are located at positions on the rubber sleeve corresponding to the end surface of the main body. Such a layout can further increase the heat dissipation area and improve the heat dissipation efficiency.

[0013] Preferably, an air duct is further provided at the auxiliary heat dissipation hole, and the air duct is located on the outside of the rubber sleeve and fixedly connected to the rubber sleeve; the auxiliary heat dissipation hole is located on the inside of the air duct.

[0014] By adopting the above technical solution, the design of the air duct can guide the airflow and make the heat dissipation more efficient.

[0015] Preferably, an air guiding notch is provided on the side wall of the air guiding duct.

[0016] By adopting the above technical solution, these air guide gaps can change the direction and speed of the airflow, further optimizing the heat dissipation effect.

[0017] Preferably, a heat dissipation air plate is also provided on the rubber sleeve, and the heat dissipation air plate is located at a position on the rubber sleeve corresponding to the end surface of the main body.

[0018] By adopting the above technical solution, these heat dissipation air plates can increase the heat dissipation area and help the rotor dissipate heat faster.

[0019] Preferably, the heat dissipation air plate is arranged along the radial direction of the rubber sleeve.

[0020] By adopting the above technical solution, the heat dissipation air plate is arranged along the radial direction of the rubber sleeve. This layout can more effectively utilize the wind flow, improve the heat dissipation effect, and also help to maintain the dynamic balance of the rotor, and can also improve the strength of the rubber sleeve so that the rubber sleeve can adapt to higher speeds.

[0021] Preferably, the rubber sleeve is provided with a plurality of mounting holes, and the mounting holes are used for mounting counterweights.

[0022] By adopting the above technical solution, the dynamic balance of the rotor can be adjusted by adjusting the position and weight of the counterweight block, thereby improving the running stability and efficiency of the motor.

[0023] Preferably, the mounting hole is configured as a blind hole, and the mounting hole is located at a position on the rubber sleeve corresponding to the end surface of the main body.

[0024] By adopting the above technical solution, the blind hole design can prevent the counterweight from falling off during use, and also helps to protect the counterweight from the influence of the external environment, thereby ensuring the dynamic balance stability of the rotor.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By setting the rubber sleeve to wrap the permanent magnet and the installation slot, the installation stability of the permanent magnet in the rotor is improved, and the problem of falling off or loose fixation that may occur in the traditional installation method is solved;

[0027] 2. The design of the raised part and the main heat dissipation hole increases the heat dissipation area of ​​the rotor, effectively improves the heat dissipation performance, ensures that the rotor can dissipate heat in time during high-speed operation, and prolongs its service life;

[0028] 3. The heat dissipation effect is further enhanced by adding auxiliary heat dissipation holes, heat dissipation air plates and air guide ducts, ensuring that the rotor can maintain good heat dissipation performance even when running at high loads;

[0029] 4. The design of the mounting hole allows the counterweight to be easily installed on the rubber sleeve, making it easier to adjust the dynamic balance of the rotor and improve the running stability of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the motor rotor and the rubber sleeve in the embodiment of the present application;

[0031] Figure 2 It is a schematic diagram of the structure of the motor rotor and the rubber sleeve after assembly in the embodiment of the present application.

[0032] Markings in the accompanying drawings: 1, main body; 11, permanent magnet; 12, raised portion; 2, rubber sleeve; 21, main heat dissipation hole; 22, auxiliary heat dissipation hole; 23, air guide duct; 231, air guide gap; 24, heat dissipation air plate; 25, mounting hole. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-2 This application is described in further detail.

[0034] This embodiment discloses a rubber encapsulation structure for a motor rotor.

[0035] Reference Figure 1 The motor rotor comprises a columnar main body 1, on which a mounting groove is provided, in which a permanent magnet 11 is fixedly arranged. A convex portion 12 is designed on the peripheral side of the main body 1.

[0036] Reference Figure 2 The rubber encapsulation structure of the motor rotor includes a rubber sleeve 2, which is sleeved on the outside of the main body 1. When the rubber sleeve 2 is sleeved, the mounting groove and the permanent magnet 11 are completely wrapped inside the rubber sleeve 2. This design can significantly improve the stability and durability of the rotor assembly. In addition, main heat dissipation holes 21 are opened on the circumferential side of the rubber sleeve 2, and the protrusions 12 extend to the outside of the rubber sleeve 2 through these main heat dissipation holes 21. This can not only ensure the heat dissipation effect, but also further enhance the combination stability between the rubber sleeve 2 and the rotor main body 1 through the cooperation of the protrusions 12 and the main heat dissipation holes 21.

[0037] Therefore, the key components of the motor rotor, such as the permanent magnet 11 and the mounting groove, are arranged in the rubber sleeve 2, so that the rubber sleeve 2 can provide an additional protective layer, thereby effectively improving the overall stability and service life of the rotor. At the same time, the design of the heat dissipation holes ensures that the rotor can effectively dissipate heat during operation, preventing performance degradation caused by heat accumulation.

[0038] In addition to the main heat dissipation holes 21, auxiliary heat dissipation holes 22 are also provided on the rubber sleeve 2. These auxiliary heat dissipation holes 22 are located at positions on the rubber sleeve 2 corresponding to the end surface of the main body 1. Such a layout can further increase the heat dissipation area and improve the heat dissipation efficiency.

[0039] An air duct 23 is added at the auxiliary heat dissipation hole 22. The air duct 23 is located outside the rubber sleeve 2 and is fixedly connected to the rubber sleeve 2, and the auxiliary heat dissipation hole 22 is located inside the air duct 23. The design of the air duct 23 can guide airflow and make heat dissipation more efficient.

[0040] Wind guiding notches 231 are further provided on the side wall of the wind guiding pipe 23. These wind guiding notches 231 can change the direction and speed of the airflow, further optimizing the heat dissipation effect.

[0041] Heat dissipation plates 24 are arranged on the rubber sleeve 2 at positions corresponding to the end surface of the main body 1. These heat dissipation plates 24 can increase the heat dissipation area and help the rotor dissipate heat faster. The heat dissipation plates 24 are arranged along the radial direction of the rubber sleeve 2. This layout can more effectively utilize the wind flow and improve the heat dissipation effect. It also helps to maintain the dynamic balance of the rotor and can also improve the strength of the rubber sleeve 2 so that the rubber sleeve 2 can adapt to higher speeds.

[0042] A plurality of mounting holes 25 are provided on the rubber sleeve 2, and the mounting holes 25 are evenly distributed around the center of the rubber sleeve 2. The mounting holes 25 are used to install counterweights. By adjusting the position and weight of the counterweights, the dynamic balance of the rotor can be adjusted, thereby improving the running stability and efficiency of the motor.

[0043] Furthermore, the balancing weight can be fixed in the mounting hole 25 by gluing. The mounting holes 25 are arranged as blind holes, and these mounting holes 25 are located at positions on the rubber sleeve 2 corresponding to the end surface of the main body 1. The blind hole design can prevent the balancing weight from falling off during use, and also helps to protect the balancing weight from the influence of the external environment, thereby ensuring the dynamic balance stability of the rotor.

[0044] The rubber-encapsulated structure of the motor rotor in the embodiment of the present application can be made of plastic material and integrally injection-molded on the motor rotor, or it can be made of other metals and installed on the motor rotor in the form of split assembly.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rubber encapsulation structure for a motor rotor, characterized in that: The motor rotor comprises a main body (1), the main body (1) being provided with a mounting groove, in which a permanent magnet (11) is fixedly arranged; a convex portion (12) is arranged on the circumferential side of the main body (1); The rubber encapsulation structure of the motor rotor comprises a rubber sleeve (2) for being sleeved on the surface of a main body (1), and the mounting groove and the permanent magnet (11) are both located inside the rubber sleeve (2); a main heat dissipation hole (21) is opened on the circumference of the rubber sleeve (2), and the protrusion (12) extends to the outside of the rubber sleeve (2) through the main heat dissipation hole (21).

2. The rubber encapsulation structure of the motor rotor according to claim 1, characterized in that: The rubber sleeve (2) is also provided with an auxiliary heat dissipation hole (22), and the auxiliary heat dissipation hole (22) is located at a position on the rubber sleeve (2) corresponding to the end surface of the main body (1).

3. The rubber encapsulation structure of the motor rotor according to claim 2, characterized in that: An air duct (23) is also provided at the auxiliary heat dissipation hole (22); the air duct (23) is located outside the rubber sleeve (2) and is fixedly connected to the rubber sleeve (2); the auxiliary heat dissipation hole (22) is located inside the air duct (23).

4. The rubber encapsulation structure of the motor rotor according to claim 3 is characterized in that: The side wall of the air guide pipe (23) is also provided with an air guide notch (231).

5. The rubber encapsulation structure of the motor rotor according to claim 1 or 2, characterized in that: The rubber sleeve (2) is also provided with a heat dissipation air plate (24), and the heat dissipation air plate (24) is located at a position on the rubber sleeve (2) corresponding to the end surface of the main body (1).

6. The rubber encapsulation structure of the motor rotor according to claim 5, characterized in that: The heat dissipation air plate (24) is arranged along the radial direction of the rubber sleeve (2).

7. The rubber encapsulation structure of the motor rotor according to claim 1, characterized in that: The rubber sleeve (2) is also provided with a plurality of mounting holes (25), and the mounting holes (25) are used for mounting a counterweight.

8. The rubber encapsulation structure of the motor rotor according to claim 7, characterized in that: The mounting hole (25) is configured as a blind hole, and the mounting hole (25) is located at a position on the rubber sleeve (2) corresponding to the end surface of the main body (1).

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