Production method of mix magnetic circuit permanent magnet solid rotor
A technology of a solid rotor and a production method, which is applied in the field of electric motors to achieve the effects of high power density, high operating efficiency and good starting performance
Active Publication Date: 2015-07-08
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 mix magnetic circuit permanent magnet solid rotor. The production method includes the steps that firstly, a magnetic shaft sleeve is installed on a rotating shaft; secondly, magnet vanes are evenly installed on the periphery of the magnetic shaft sleeve, pole shoes are evenly installed on the periphery of the magnet vanes, the two sides of each pole shoe are each connected with one corresponding magnet vane, a radial permanent magnet groove is formed between every two adjacent magnet vanes, a tangential permanent magnet groove and a wedge groove formed in the outer side of the tangential permanent magnet groove are formed between every two adjacent pole shoes, and rotor slot grooves are inserted into the wedge grooves and are fixedly and integrally welded to the pole shoes; thirdly, radial and tangential permanent magnets are installed in the corresponding grooves and are axially pressed, rotor end rings are connected with the rotor slot grooves, and the parts in the second step are assembled preferably. According to the production method, radial magnetic circuits and tangential magnetic circuits can be reasonably arranged, an electromotor adopted in the production method can be good in performance, in addition, the production method ensures the integrity of the rotor structure and the evenness of air gaps of the electromotor adopted in the production method, and the production method is suitable for application and popularization.
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