A production method of a hybrid magnetic circuit permanent magnet solid rotor
A solid rotor and production method technology, applied in the field of electric motors, to achieve good starting performance, reduced volume and weight, and high operating efficiency
Active Publication Date: 2017-08-11
北京英孚莱特动力技术有限公司
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to propose a production method of a permanent magnet solid rotor with a hybrid magnetic circuit, so that the radial magnetic circuit and the tangential magnetic circuit can be arranged reasonably, and the problem of asynchronous starting permanent magnet synchronous motors, especially high power and high The key production process and production method that need to be solved for the voltage asynchronous start permanent magnet synchronous motor adopting the hybrid magnetic circuit solid rotor structure
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[0027] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0028] see Figure 1-2 As shown, the hybrid magnetic circuit permanent magnet solid rotor involved in the present invention includes: rotating shaft 1, rotor end ring 2, rotor slot wedge 3, rotor pressure plate 4, small slot copper plate 5, radial permanent magnet 6, magnetic bushing 7 , key 8, rivet 9, fastening bolt 10, magnetic isolation plate 11, tangential permanent magnet 12, pole piece 13.
[0029] see image 3 as shown, image 3 It is a rotor welding part (i.e. integral part) diagram of a hybrid magnetic circuit permanent magnet solid rotor, including: rotor end ring 2, rotor slot wedge 3, small slot copper plate 5, magnetic bushing 7, magnetic isolation p...
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The invention discloses a production method of a permanent magnet solid rotor with a hybrid magnetic circuit, comprising: (a) installing a magnetic bushing on a rotating shaft; (b) evenly installing a magnetic isolation plate on the outer periphery of the magnetic bushing, Installed on the outer circumference of the magnetic isolation plate, so that both sides of each pole piece are connected with a magnetic isolation plate; wherein, a radial permanent magnet slot is formed between adjacent magnetic isolation plates, and a tangential permanent magnet is formed between adjacent pole pieces. The magnet slot and the wedge slot located outside the tangential permanent magnet slot; insert the rotor slot wedge into the wedge slot and weld and fix it with the pole piece as a whole; (c) install the radial and tangential permanent magnets in the corresponding slots, and Axially compressing; connecting the rotor end ring with the rotor slot wedge, preferably the assembly of the components in (b) is carried out first. The production method of the present invention can reasonably arrange the radial magnetic circuit and the tangential magnetic circuit, so that the performance of the motor using it is excellent. In addition, the production method of the present invention ensures the integrity of the rotor structure and the uniformity of the air gap of the motor using it. properties, suitable for popularization and application.
Description
technical field [0001] The invention relates to the field of motors, in particular to a production method of a hybrid magnetic circuit permanent magnet solid rotor of a permanent magnet synchronous motor with asynchronous start and synchronous operation. Background technique [0002] The permanent magnet synchronous motor can be used for speed regulation operation, and can also be started by using the asynchronous torque generated by the rotor starting winding, which is called an asynchronous starter permanent magnet synchronous motor. The asynchronous start permanent magnet synchronous motor has two structures, one is a punched rotor, and the other is a solid rotor structure. [0003] Compared with the punching type asynchronous start permanent magnet synchronous motor, the solid rotor asynchronous start permanent magnet synchronous motor has better starting performance, the motor starting torque is large, the starting current is small, the synchronous pull-in torque is lar...
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IPC IPC(8): H02K15/03
Inventor 秦明
Owner 北京英孚莱特动力技术有限公司