Magnetic pole rotor structure of permanent magnet motor

Abstract

The utility model provides a magnetic pole rotor structure of a permanent magnet motor, which relates to the technical field of permanent magnet motors and comprises a base, a stator mechanism is arranged at the top of the base, a rotor mechanism is arranged in the stator mechanism and comprises a rotor iron core, and permanent magnets are arranged on the inner surface wall of the rotor iron core. A connecting groove is formed in the position, close to the center, of one end of the permanent magnet, a connecting shaft is arranged on the inner surface wall of the connecting groove, the outer surface of the connecting shaft is movably sleeved with a bearing, a plurality of V-shaped grooves are formed in the position, close to the edge, of one end of the permanent magnet, and a plurality of rhombic grooves are formed in one end of the permanent magnet. According to the utility model, through the arrangement of the groove type, effective heat dissipation and temperature reduction of the permanent magnet motor are realized, the weight of the motor is also obviously reduced, and the overall performance of the motor is improved while the stable operation of the motor is ensured through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet motors, in particular to a magnetic pole rotor structure of a permanent magnet motor. Background Art

[0002] In the field of electric motors, permanent magnet motors have received extensive attention and applications in recent years due to their advantages such as high efficiency, energy saving, and fast response speed, especially in the fields of new energy vehicles, industrial automation, aerospace, etc., where permanent magnet motors play a pivotal role. However, with the continuous advancement of technology and the continuous expansion of application fields, the performance requirements for permanent magnet motors are becoming higher and higher, especially in the pole rotor structure, whose design is directly related to the efficiency, life and operation stability of the motor.

[0003] In the prior art, when using a permanent magnet motor, it is first necessary to correctly install and connect the power supply, and select the appropriate load and control mode according to the rated working conditions of the motor. However, due to the heavy weight of the motor, the motor is also inconvenient to transport, install and maintain, and after long-term use, various components inside it, such as the rotor, will generate a lot of heat. Since the heat generated inside the motor cannot be dissipated in time, it may cause the temperature to continue to rise, thereby reducing the overall performance. Utility Model Content

[0004] To solve the above problems, the utility model adopts the following technical solutions: a magnetic pole rotor structure of a permanent magnet motor, comprising a base, a stator mechanism is arranged on the top of the base, a rotor mechanism is arranged inside the stator mechanism, the rotor mechanism comprises a rotor core, a permanent magnet is arranged on the inner surface wall of the rotor core, a connecting groove is opened at one end of the permanent magnet near the center, a connecting shaft is arranged on the inner surface wall of the connecting groove, and a bearing is arranged on the outer surface movable sleeve of the connecting shaft.

[0005] Preferably, a plurality of V-shaped grooves are formed at one end of the permanent magnet near the edge, and a plurality of diamond-shaped grooves are formed at one end of the permanent magnet.

[0006] Preferably, a plurality of triangular grooves are formed at one end of the permanent magnet.

[0007] Preferably, the stator mechanism comprises a permanent magnet motor housing, and the inner surface wall of the permanent magnet motor housing is provided with a stator core.

[0008] Preferably, a rear end cover is fixedly connected to the outer surface of the permanent magnet motor housing, and a temperature sensor connecting line is fixedly connected to the outer surface of the rear end cover.

[0009] Preferably, a U-phase line is fixedly connected to the top of the rear end cover, and a V-phase line is fixedly connected to the top of the rear end cover.

[0010] Preferably, the top of the rear end cover is fixedly connected to a W-phase line, and the bottom of the permanent magnet motor housing is fixedly mounted to the top of the base.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. With the coordinated use of the rotor core, permanent magnets, connecting slots, connecting shafts, bearings, V-grooves, diamond grooves and triangular grooves, the opening of the slots not only achieves effective heat dissipation and temperature reduction of the permanent magnet motor, but also significantly reduces the weight of the motor. This design improves the overall performance of the motor while ensuring stable operation of the motor.

[0013] 2. The coordinated use of the permanent magnet motor housing, stator core, rear end belt, temperature sensor connecting wire, U-phase wire, V-phase wire and W-phase wire improves the output power and efficiency of the motor. The stator core helps to make the performance of the motor more stable and reliable by reducing magnetic flux leakage and improving magnetic circuit connectivity. In addition, the stator core can also reduce the vibration and noise of the motor and improve the working environment and production efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a magnetic pole rotor structure of a permanent magnet motor is provided for the utility model;

[0015] Figure 2 A schematic diagram of a part of the rotor mechanism of a magnetic pole rotor structure of a permanent magnet motor proposed in the utility model;

[0016] Figure 3 A schematic diagram of another part of the rotor mechanism of a magnetic pole rotor structure of a permanent magnet motor proposed in the utility model;

[0017] Figure 4 The utility model provides a schematic diagram of a stator mechanism of a magnetic pole rotor structure of a permanent magnet motor.

[0018] Legend: 1. Base; 2. Rotor mechanism; 201. Rotor core; 202. Permanent magnet; 203. Connecting slot; 204. Connecting shaft; 205. Bearing; 206. V-shaped slot; 207. Diamond slot; 208. Triangular slot; 3. Stator mechanism; 301. Permanent magnet motor housing; 302. Stator core; 303. Rear end cover; 304. Temperature sensor connecting line; 305. U-phase line; 306. V-phase line; 307. W-phase line. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] like Figure 1-Figure 4 As shown, the utility model provides a magnetic pole rotor structure of a permanent magnet motor, comprising a base 1, a stator mechanism 3 is arranged on the top of the base 1, and a rotor mechanism 2 is arranged inside the stator mechanism 3. The rotor mechanism 2 comprises a rotor core 201, a permanent magnet 202 is arranged on the inner surface wall of the rotor core 201, a connecting groove 203 is provided at one end of the permanent magnet 202 near the center, a connecting shaft 204 is provided on the inner surface wall of the connecting groove 203, a bearing 205 is provided on the outer surface of the connecting shaft 204, a plurality of V-shaped grooves 206 are provided at one end of the permanent magnet 202 near the edge, a plurality of rhombus grooves 207 are provided at one end of the permanent magnet 202, and a plurality of triangular grooves 208 are provided at one end of the permanent magnet 202.

[0022] When the motor is in use, the current in the stator generates a magnetic field when the power is turned on. This stator magnetic field interacts with the permanent magnet magnetic field in the rotor, thereby generating a rotational torque, causing the rotor to rotate in the stator. At this time, by driving the rotor core 201 to rotate, the permanent magnet 202 can be driven to rotate when the rotor core 201 rotates. Because the rotor core 201 is usually made of a material with good magnetic conductivity, such as silicon steel sheets, it can effectively conduct the magnetic field when the motor is running, and the permanent magnet 202 is the core component of the motor that generates the magnetic field. They have stable magnetic properties and can continuously generate a strong magnetic field when the motor is running. This magnetic field interacts with the rotating magnetic field generated by the stator winding, thereby generating an electromagnetic torque and driving the motor to rotate.

[0023] The connecting shaft 204 in the connecting slot 203 connects the various rotating parts inside the motor to ensure that they can work together and realize power transmission, so that the motor can convert electrical energy into mechanical energy and drive external equipment or mechanisms to work. The bearing 205 is responsible for supporting the rotation of the rotor and controlling the gap between the rotor and the stator to keep their relative positions stable. The bearing 205 can reduce the friction loss and energy consumption during the operation of the motor, thereby improving the efficiency and stability of the motor.

[0024] Under the action of the V-shaped groove 206, the heat dissipation effect can be optimized, thereby effectively reducing the temperature of the motor during use. By providing the diamond groove 207 and the triangular groove 208, structural optimization and weight reduction can be achieved. The accurate opening of these grooves helps to reduce the amount of material used, thereby reducing the overall weight of the motor, and ensures that the motor maintains its structural stability and high performance while reducing its weight.

[0025] Under the action of the rotor mechanism 2, the slots are opened to not only achieve effective heat dissipation and temperature reduction of the permanent magnet motor, but also significantly reduce the weight of the motor. This design improves the overall performance while ensuring the stable operation of the motor. The base 1 is mainly used to stabilize the permanent magnet motor.

[0026] The stator mechanism 3 includes a permanent magnet motor housing 301, the inner surface wall of which is provided with a stator core 302, the outer surface of the permanent magnet motor housing 301 is fixedly connected to a rear end cover 303, the outer surface of the rear end cover 303 is fixedly connected to a temperature sensor connecting line 304, the top of the rear end cover 303 is fixedly connected to a U phase line 305, the top of the rear end cover 303 is fixedly connected to a V phase line 306, the top of the rear end cover 303 is fixedly connected to a W phase line 307, and the bottom of the permanent magnet motor housing 301 is fixedly installed with the top of the base 1.

[0027] After the power is turned on, the current flows in through the permanent magnet motor housing 301, and then acts on the stator core 302. As an important part of the motor magnetic circuit, the stator core 302 can concentrate and conduct the magnetic field, so that the magnetic field can be effectively transmitted inside the motor. Through the action of the stator core 302, the electric energy provided by the power supply is converted into mechanical energy, thereby driving the motor to operate. At the same time, the structure of the stator core 302 affects the performance of the motor. The stator core 302 can reduce the loss of the motor during operation and improve the overall efficiency of the motor.

[0028] When power is provided to the U phase line 305, the V phase line 306 and the W phase line 307, a rotating magnetic field will be generated inside the motor. The U phase line 305 is responsible for the forward rotation of the motor. When a three-phase power signal with a positive phase sequence is provided to the U phase line 305, the U phase line 305 will form a magnetic field to drive the rotor of the motor to rotate; similarly, the V phase line 306 controls the reverse operation of the motor, and the W phase line 307 works between the U phase line 305 and the V phase line 306 to generate a loop magnetic flux to rotate the motor, and is connected to other devices through the temperature sensor connecting line 304 outside the rear end cover 303, so that the connecting line is responsible for transmitting the temperature signal measured by the temperature sensor to the controller or other related equipment to ensure the real-time acquisition of the internal temperature information of the motor.

[0029] Under the action of the stator mechanism 3, the output power and efficiency of the motor are improved, and by reducing magnetic flux leakage and improving magnetic circuit connectivity, the stator core 302 helps to make the performance of the motor more stable and reliable; in addition, the stator core 302 can also reduce the vibration and noise of the motor, and improve the working environment and production efficiency of the motor.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A magnetic pole rotor structure of a permanent magnet motor, characterized in that: It comprises a base (1), a stator mechanism (3) is arranged on the top of the base (1), and a rotor mechanism (2) is arranged inside the stator mechanism (3); The rotor mechanism (2) comprises a rotor core (201), the inner surface wall of the rotor core (201) being provided with a permanent magnet (202), one end of the permanent magnet (202) being provided with a connection groove (203) near the center, the inner surface wall of the connection groove (203) being provided with a connection shaft (204), and the outer surface of the connection shaft (204) being provided with a bearing (205) in a movable sleeve.

2. The magnetic pole rotor structure of the permanent magnet motor according to claim 1, characterized in that: One end of the permanent magnet (202) is provided with a plurality of V-shaped grooves (206) near the edge, and one end of the permanent magnet (202) is provided with a plurality of diamond-shaped grooves (207).

3. The magnetic pole rotor structure of the permanent magnet motor according to claim 2, characterized in that: One end of the permanent magnet (202) is provided with a plurality of triangular grooves (208).

4. The magnetic pole rotor structure of the permanent magnet motor according to claim 1, characterized in that: The stator mechanism (3) comprises a permanent magnet motor housing (301), and a stator iron core (302) is provided on the inner surface wall of the permanent magnet motor housing (301).

5. The magnetic pole rotor structure of the permanent magnet motor according to claim 4, characterized in that: The outer surface of the permanent magnet motor housing (301) is fixedly connected to a rear end cover (303), and the outer surface of the rear end cover (303) is fixedly connected to a temperature sensor connection line (304).

6. The magnetic pole rotor structure of the permanent magnet motor according to claim 5, characterized in that: The top of the rear end cover (303) is fixedly connected to a U-phase line (305), and the top of the rear end cover (303) is fixedly connected to a V-phase line (306).

7. The magnetic pole rotor structure of the permanent magnet motor according to claim 6, characterized in that: The top of the rear end cover (303) is fixedly connected to a W-phase line (307), and the bottom of the permanent magnet motor housing (301) is fixedly mounted to the top of the base (1).

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