Low-noise and low-vibration switched reluctance motor stator and rotor

Abstract

The utility model discloses a low-noise and low-vibration switched reluctance motor stator and rotor, which comprises a stator or rotor shell and a stator / rotor iron core body, and T-shaped or dovetail-shaped grooves or bosses (hereinafter referred to as anti-rotation structures) are uniformly arranged on the inner side of the stator or rotor shell and the outer side of the stator / rotor iron core body. According to the anti-rotation structure, the stator or rotor shell and the stator / rotor iron core body are effectively embedded together in a die-casting or casting or riveting mode, and the strength and rigidity of the motor stator / rotor iron core body are greatly enhanced. The utility model aims to solve the problems that the strength of an iron core yoke part of a stator or a rotor of an existing switched reluctance motor is weak, and meanwhile, due to the salient pole structure characteristic of the switched reluctance motor, the motor can cause the deformation of a motor iron core due to the fluctuation change of a magnetic field when the motor works; and due to the fluctuation change of an air gap magnetic field, the torque fluctuation of the switched reluctance motor and the deformation of an iron core are caused, so that the operation noise and vibration of the motor are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of switched reluctance motors, in particular to a stator and rotor structure of a switched reluctance motor with low noise and low vibration. Background Art

[0002] The stator or rotor of a switched reluctance motor refers to an important part of the motor, which is responsible for rotation and transmission of power. It is usually composed of an iron core and a conductor, and generates a magnetic field through current to generate torque. The structural design and material selection of the stator or rotor of a switched reluctance motor have an important impact on the performance and efficiency of the switched reluctance motor.

[0003] The existing switched reluctance motor stator or rotor has weak strength at the front of the rotor core body and the salient pole structure of the switched reluctance motor itself, which will cause significant deformation of the motor core when the motor is working. The fluctuation of the air gap magnetic field causes torque fluctuation and deformation of the core, which leads to increased noise and vibration during motor operation. Utility Model Content

[0004] The purpose of the utility model is to provide a low-noise and low-vibration switched reluctance motor stator and rotor, by adding a T-slot or dovetail slot structure to the stator or rotor of the switched reluctance motor, and embedding the motor core and the aluminum alloy shell into a complete integral structure through die-casting, casting or riveting technology, so as to increase the strength of the stator or rotor yoke position, so as to solve the problems of excessive noise and vibration raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-noise and low-vibration switched reluctance motor stator and rotor, comprising a stator or rotor housing, an anti-rotation groove and a positioning groove are provided on the inner side of the stator or rotor housing, the anti-rotation groove is tightly embedded in the stator or rotor core body, a T-slot or a dovetail groove is provided on one side of the stator or rotor core body close to the anti-rotation groove, and the positioning groove tightly connects the stator or rotor housing to the connecting cover plate.

[0006] As a further preferred embodiment of the present technical solution, a hole is opened inside the connecting cover plate, and a motor sleeve is welded to the inner wall of the hole.

[0007] As a further preferred embodiment of the present technical solution, the rotor core body is a punching sheet made of silicon steel with strong magnetic properties.

[0008] As a further preferred embodiment of the present technical solution, the rotor core body is formed by stacking silicon steel punching sheets and then riveting or welding them.

[0009] As a further preferred embodiment of the present technical solution, the stator or rotor housing is made of aluminum alloy material.

[0010] As a further preferred embodiment of the present technical solution, the stator or rotor is a complete integral structure formed by a rotor core body and a stator or rotor shell through a die-casting, casting or riveting process.

[0011] The utility model provides a low-noise and low-vibration switched reluctance motor stator and rotor, which has the following beneficial effects:

[0012] (1) The utility model adds a T-slot or dovetail slot structure to the stator or rotor of the switched reluctance motor, and embeds it with the aluminum alloy shell through die-casting, casting or riveting to form a complete integral structure, thereby enhancing the strength of the stator or rotor yoke position, reducing the deformation of the stator or rotor during operation and achieving the purpose of reducing noise and vibration. In addition, the design of embedding the motor core and the aluminum alloy shell into an integral structure and the structure of using a cover plate can not only ensure the overall strength of the motor rotor core body, but also reduce the cost of the stator or rotor. In general, this structure can reduce motor noise and vibration, and improve the efficiency and performance of the switched reluctance motor. For the switched reluctance motor, this means a more stable and reliable working state, and better prolongs the service life of the switched reluctance motor.

[0013] (2) The utility model increases the rigidity and strength of the rotor by opening a hole in the electric cover plate and welding a shaft sleeve inside the hole, thereby further improving the safety of this type of switched reluctance motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of a half-section structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the rotor core body structure of the utility model;

[0018] In the figure: 1. stator or rotor housing; 2. connecting cover; 3. hole; 4. shaft sleeve; 5. anti-rotation groove; 6. positioning groove; 7. rotor core body; 8. T-slot or dovetail groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figure 1-Figure 4As shown, in this embodiment, a low-noise and low-vibration switched reluctance motor stator and rotor comprises a stator or rotor housing 1, an anti-rotation groove 5 and a positioning groove 6 are provided on the inner side of the stator or rotor housing 1, the anti-rotation groove 5 is tightly fitted with a stator or rotor core body 7, a T-slot or dovetail groove 8 is provided on the side of the stator or rotor core body 7 close to the anti-rotation groove 5, the positioning groove 6 tightly connects the stator or rotor housing 1 with the connecting cover plate 2, the stator or rotor housing 1 is made of aluminum alloy material, and the stator or rotor is a complete integral structure formed by the rotor core body 7 and the stator or rotor housing 1 through a die-casting, casting or riveting process.

[0021] When the switched reluctance motor is in use, a T-slot or dovetail slot 8 structure is added to the outer side of the motor rotor core body 7, and is embedded with the aluminum alloy stator or rotor housing 1 to form a complete integral structure, so as to increase the strength of the motor stator or rotor yoke position, so that the motor rotor core body 7 can better reduce deformation when rotating, thereby achieving the purpose of reducing noise and vibration. In addition, the structural design of embedding the motor rotor core body 7 and the stator or rotor housing 1 into a whole and adding the connecting cover plate 2 can not only ensure the overall strength of the motor rotor core body 7, but also reduce the overall cost of the motor, thereby achieving the purpose of improving the efficiency and performance of the switched reluctance motor, which means a more stable and reliable working state for the switched reluctance motor, and also prolongs the service life of the switched reluctance motor.

[0022] like Figure 1-Figure 4 As shown, a hole 3 is opened inside the connecting cover plate 2, and a motor shaft sleeve 4 is welded to the inner wall of the hole 3.

[0023] By opening the hole 3 and cooperating with the shaft sleeve 4, the switched reluctance motor shaft is conveniently connected to the motor rotor core body 7, and the deformation, vibration and noise of the switched reluctance motor can be reduced during use, thereby further improving the use efficiency of the stator or rotor of the switched reluctance motor.

[0024] like Figure 1-Figure 4 As shown, the rotor core body 7 is a silicon steel punching sheet of a strong magnetic body, and the rotor core body 7 is made of silicon steel punching sheets that are stacked and riveted or welded.

[0025] Strong magnetic laminations can provide higher magnetic field density, thereby improving the power density of the switched reluctance motor, enabling it to provide greater power output in a smaller volume. At the same time, strong magnetic laminations can reduce hysteresis losses and improve the efficiency of the switched reluctance motor. At the same time, they can also provide greater power output in a short time, making the switched reluctance motor perform better when instantaneous high power output is required. Strong magnetic laminations can improve the response speed and dynamic performance of the switched reluctance motor, allowing the switched reluctance motor to adjust the output more quickly when instantaneous high power output is required. By using strong magnetic laminations, the size and weight of the motor can be reduced while maintaining a certain power output, making the motor more suitable for some application scenarios that have requirements on volume and weight. In general, the switched reluctance motor using strong magnetic laminations can meet the needs of short-term high power output while maintaining high efficiency and high power density, and is suitable for some application scenarios with high power output requirements.

[0026] The utility model provides a low-noise and low-vibration switched reluctance motor stator and rotor, and the specific working principle is as follows: when the switched reluctance motor is used, the motor shaft of the switched reluctance motor is connected to the motor rotor core body 7 by the bearing inside the shaft sleeve 4, so as to realize the high-speed rotation of the integral structure of the motor rotor core body 7 and the stator or rotor housing 1. During the use of the switched reluctance motor, by adding a T-slot or dovetail slot 8 structure on the outer side of the motor rotor core body 7, and forming a complete integral structure with the stator or rotor housing 1 through die casting, casting or embedding, the strength of the rotor yoke position is increased, so that the deformation of the motor rotor core body 7 is reduced when the rotor rotates, thereby achieving the purpose of reducing noise and vibration.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low noise and low vibration switched reluctance motor stator and rotor, comprising a stator or rotor housing (1), characterized in that: An anti-rotation groove (5) and a positioning groove (6) are provided on the inner side of the stator or rotor housing (1); the anti-rotation groove (5) is tightly fitted with the stator or rotor core body (7); a T-shaped groove or a dovetail groove (8) is provided on a side of the stator or rotor core body (7) close to the anti-rotation groove (5); and the positioning groove (6) tightly connects the stator or rotor housing (1) and the connecting cover plate (2).

2. A low noise and low vibration switched reluctance motor stator and rotor according to claim 1, characterized in that: A hole (3) is provided inside the connecting cover plate (2), and a motor shaft sleeve (4) is welded to the inner wall of the hole (3).

3. The low noise and low vibration switched reluctance motor stator and rotor according to claim 1, characterized in that: The rotor core body (7) is a punched sheet made of strong magnetic silicon steel.

4. The low noise and low vibration switched reluctance motor stator and rotor according to claim 1, characterized in that: The rotor core body (7) is made of silicon steel punching sheets that are stacked and then riveted or welded.

5. The low noise and low vibration switched reluctance motor stator and rotor according to claim 1, characterized in that: The stator or rotor housing (1) is made of aluminum alloy material.

6. The low noise and low vibration switched reluctance motor stator and rotor according to claim 1, characterized in that: The stator or rotor is a complete integral structure formed by a rotor core body (7) and a stator or rotor housing (1) through a die-casting, casting or riveting process.

Images