Double-salient-pole double-squirrel-cage outer rotor structure of a stator permanent magnet double-rotor motor
A dual-rotor motor and outer rotor technology, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit rotating parts, electrical components, etc., can solve the problem of large rotor loss, reduce rotor loss, improve stiffness and strength Effect
Inactive Publication Date: 2016-08-17
JIANGSU UNIV
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Problems solved by technology
Because the lamination structure cannot be used, the rotor loss is relatively large
Method used
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[0010] The double salient pole double squirrel cage outer rotor structure proposed by the present invention is as follows: figure 1 As shown, it consists of an outer rotor body 1, an outer cage bar 2, an inner cage bar 3, and an end ring 4.
[0011] The structure of the outer rotor body 1 is as follows image 3 As shown, it is in the shape of a cylinder, with an inner and outer double salient pole structure, and is formed by laminating silicon steel laminations 8 . The outer rotor body 1 is punched with two groups of slots, which are the outer slot group 6 and the inner slot group 7 respectively, and the two groups of slots are composed of a plurality of through holes uniformly distributed along the circumferential direction. The through holes of the outer slot group 6 are close to the outer circumference 9 of the yoke of the outer salient pole 11 in the radial direction, and are located in the tangential middle position of two adjacent salient poles on the outer salient pole...
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The invention discloses a double salient pole double squirrel cage outer rotor structure of a stator permanent magnet double rotor motor. The inner and outer double salient pole structure is laminated. The outer rotor body is punched with an outer slot group and an inner slot group consisting of a plurality of through holes uniformly distributed along the circumferential direction. The through holes of the outer slot group are in diameter. Up close to the outer circumference of the yoke of the outer salient pole, tangentially located at the tangential middle position between two adjacent salient poles of the outer salient pole, and the through holes of the inner slot group are radially close to the inner circumference of the yoke of the inner salient pole , located in the tangential middle position between two adjacent salient poles of the inner salient pole in the tangential direction, each through hole of the outer slot group is fixed with an outer squirrel cage bar, and each through hole of the inner slot group An inner squirrel cage bar is fixedly embedded, and the ends of the inner squirrel cage bar and the outer squirrel cage bar are fixedly connected to the end ring; not only can the rotor loss be reduced, but also the rigidity and strength can be improved.
Description
technical field [0001] The invention relates to a double-rotor motor, in particular to an outer rotor structure of the double-rotor motor, and belongs to the field of motor design. Background technique [0002] The structural feature of the double-rotor motor is that it has a stator and two inner and outer rotors. There are permanent magnets on the outer rotor of most dual-rotor motors. In addition to the problems of difficult fixing and heat dissipation, there is also the problem that the inner and outer magnetic fields are easy to influence each other. In order to overcome these problems, a stator permanent magnet dual rotor motor is proposed. The outer rotor of the stator permanent magnet dual rotor motor has no permanent magnets and no windings. It is a double salient pole structure. The magnetic field of the inner and outer motors is a non-uniform magnetic field type. To solve the problem of magnetic field coupling of internal and external motors, whether to decouple t...
Claims
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IPC IPC(8): H02K1/24H02K16/02
Inventor 全力莫丽红朱孝勇张涛李渊陈云云邱海兵
Owner JIANGSU UNIV