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Rotor structure and motor thereof

A technology of rotor structure and rotor body, applied to synchronous motors with static armatures and rotating magnets, magnetic circuit shape/style/structure, electric components, etc., can solve the problems of low anti-demagnetization ability and improve utilization rate , increase the length, improve the effect of anti-demagnetization ability

Inactive Publication Date: 2018-08-28
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Problems solved by technology

[0003] The main purpose of the present invention is to provide a rotor structure and a motor with it, so as to solve the problem of low demagnetization resistance of motor rotors in the prior art

Method used

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  • Rotor structure and motor thereof

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] combine figure 1 As shown, according to an embodiment of the present invention, a rotor structure is provided.

[0022] Specifically, the rotor structure includes a rotor body 10, on which a set of magnetic steel slots is opened, and the set of magnetic steel slots includes a plurality of magnetic steel slots, the plurality of magnetic steel slots are set independently, and two adjacent magnetic steel slots Magnetic channels are formed between them, and the extension lines in the radial direction of the plurality of magnetic steel grooves are surrounded by triangles.

[0023] In this embodiment, the extension lines in the radial direction of the plurality of magnetic steel grooves are ...

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Abstract

The present invention provides a rotor structure and a motor thereof. The rotor structure comprises a rotor body, the rotor body is provided with a magnet steel slot group, the magnet steel slot groupcomprises a plurality of magnet steel slots which are independently arranged, and one magnetic conductive channel is formed between each two adjacent magnet steel slots. The extension lines of the magnet steel slots in a radial direction encircle a triangle. The arrangement mode of the magnet steel slots can effectively increase the length of a non-magnetic bridge formed on the rotor body, can reduce the leakage flux amount of a switching structure and can improve the demagnetization resisting capacity of the rotor, namely improves the utilization of a rotor field and reduces the loss of therotor. The rotor structure and the motor thereof can improve the demagnetization resisting capacity of the motor rotor, can improve the safety factor, is simple in assembling and can decrease the manufacturing cost, and the arrangement mode of the triangular magnet steel slots can increase the corresponding reluctance torque and can allow the motor to be easily flux weakening so as to allow the motor to achieve a higher rotation speed.

Description

technical field [0001] The invention relates to the technical field of motor equipment, in particular to a rotor structure and a motor having the same. Background technique [0002] Permanent magnet synchronous motors have the advantages of high efficiency, low noise and high reliability, and have become the main trend of future automotive drive motors. Permanent magnet synchronous motors generally use NdFeB magnets made of rare earth materials, accounting for 20-20% of the total cost of the entire motor. 30%. As the only blueprint and technical direction for reducing carbon emissions in the automotive field in the future, new energy vehicles will gradually replace fuel vehicles. In the future, there will be a great demand for automobile drive motors, which will inevitably lead to a large amount of rare earth use, so the use of motors in the prior art is likely to cause a problem of high cost. Furthermore, the motor rotor structure in the prior art has the problems of larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K21/14
CPCH02K1/2706H02K21/14H02K1/2766
Inventor 郭长光张小波刘健宁张芳贾金信李广海李忠雨魏琼闫瑾王泽业熊博文梁建东
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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