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Rotor, motor, compressor, air conditioner and vehicle

A rotor and rotor core technology, applied in the field of vehicles, can solve the problems of inability to meet the requirements of high-speed operation, large iron loss and stray loss of the motor, high harmonic content of air-gap flux density, etc., to meet the requirements of high-speed operation, The effect of small torque ripple and reduction of air-gap magnetic density harmonic content

Pending Publication Date: 2020-11-27
GUANGDONG WELLING AUTO PARTS CO LTD
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Problems solved by technology

[0002] The rotor magnets of variable frequency permanent magnet synchronous motors commonly used in related technologies adopt a tile-type surface-mounted rotor structure, which is difficult to install permanent magnets. After the permanent magnets are installed, their mechanical strength is low and cannot meet the requirements of high-speed operation. The torque ripple is large, the air gap flux density harmonic content is high, the motor iron loss and stray loss are large, and the motor efficiency decreases

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  • Rotor, motor, compressor, air conditioner and vehicle
  • Rotor, motor, compressor, air conditioner and vehicle
  • Rotor, motor, compressor, air conditioner and vehicle

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Embodiment Construction

[0060] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0061] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0062] Refer below Figure 4 to Figure 10 The rotor 1, motor and compressor, air conditioner, and vehicle according to some embodiments of the present invention are described.

[0063] According to...

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Abstract

The invention provides a rotor, a motor, a compressor, an air conditioner and a vehicle. The rotor comprises: a rotor iron core, wherein a plurality of magnet grooves are formed in the rotor iron core, and the magnet grooves are located in the peripheral side of the rotor iron core; and permanent magnets arranged in the magnet grooves, wherein the cross section contour line of the permanent magneton the side opposite to the magnet grooves comprises at least one section of straight line. The motor maximally increases the use number of the permanent magnets, and reduces the copper loss, so themotor efficiency is increased; and in addition, the thicknesses of the permanent magnets of the rotor are not uniform, so that the torque ripple of the motor is small, the air gap flux density harmonic content is reduced, the motor efficiency is further improved, and the miniaturization of the motor is realized.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous motors, in particular to a rotor, a motor, a compressor, an air conditioner and a vehicle. Background technique [0002] The rotor magnets of variable frequency permanent magnet synchronous motors commonly used in related technologies adopt a tile-type surface-mounted rotor structure, which is difficult to install permanent magnets. After the permanent magnets are installed, their mechanical strength is low and cannot meet the requirements of high-speed operation. The torque ripple is large, the air gap flux density harmonic content is high, the iron loss and stray loss of the motor are large, and the efficiency of the motor decreases. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art. [0004] To this end, a first aspect of the invention proposes a rotor. [0005] A second...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
CPCH02K1/2766H02K2213/03
Inventor 郑军洪孙国伟陈汉锡
Owner GUANGDONG WELLING AUTO PARTS CO LTD
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