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Rotor of permanent magnet motor

A technology for permanent magnet motors and rotors, which is applied in the direction of magnetic circuit rotating parts, magnetic circuits, electrical components, etc., and can solve the unfavorable mass production of permanent magnet motor rotors, the need for thermal sleeves for interference fit, and the addition of key placement positions, etc. problem, to achieve the effect of saving heating equipment, stable and reliable installation, and conducive to mass production

Inactive Publication Date: 2019-12-20
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these two fixing methods are reliable, the assembly process is complicated, interference fit requires shrink fit, and key fixing will increase the number of positions for placing keys. These structures are not conducive to mass production of permanent magnet motor rotors.

Method used

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  • Rotor of permanent magnet motor

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Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 As shown, the rotor of the permanent magnet motor in this embodiment includes a rotating shaft 1 and a rotor core 2 sleeved on the rotating shaft 1, and a first rotor end plate 3 and a second rotor end plate 4 are installed on the rotating shaft 1. The rotor end plate 3 and the second rotor end plate 4 are separately arranged at both ends of the rotor core 2 and are clamped to fix the rotor core 2. The first rotor end plate 3 and the second rotor end plate 4 are sleeved on the rotating shaft 1, and the second Both the first rotor end plate 3 and the second rotor end plate 4 are in clearance fit with the rotating shaft 1, and the rotating shaft 1 is provided with a blocking portion 11, one end of the first rotor end plate 3 is in contact with the blocking portion 11, and the other end of the first rotor end plat...

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Abstract

The invention discloses a rotor of a permanent magnet motor. The rotor comprises a rotating shaft and a rotor core installed on the rotating shaft. A first rotor end plate and a second rotor end plateare installed on the rotating shaft to clamp and fix the rotor core from both ends of the rotor core. The first rotor end plate and the second rotor end plate are each installed on the rotating shaftin a clearance fit manner. The rotating shaft is provided with a stop portion. One end of the first rotor end plate is abutted against the stop portion. The other end of the first rotor end plate isabutted against the rotor core. A fastening mechanism is disposed on the rotating shaft to make the second rotor end plate press the rotor core. The rotor is simple in structure, easy, stable and reliable to install, and efficient in cost, and improves production efficiency.

Description

technical field [0001] The invention relates to the technical field of permanent magnet motors, in particular to a rotor of a permanent magnet motor for new energy vehicles. Background technique [0002] Due to the advantages of high power factor, high efficiency and small size of permanent magnet motor, its application value is more and more favored by the new energy automobile industry. Especially in recent years, all countries have vigorously advocated the development of the new energy automobile industry. With the support of various favorable national policies, permanent magnet motors will have immeasurable market application prospects. For new energy vehicles, both the governments of various countries and automobile manufacturers value them very much. It is only a matter of time before they replace fuel locomotives. Therefore, the market demand for permanent magnet motors has risen sharply in recent years. How to design permanent magnet motors with simple structure, hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/28
CPCH02K1/2706H02K1/28
Inventor 胡华
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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