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Built-in hybrid permanent magnet memory motor with local magnetic circuits in parallel

專利號
US11177706B2
公開日期
2021-11-16
申請人
SOUTHEAST UNIVERSITY(CN Nanjing)
發(fā)明人
Hui Yang; Hao Zheng; Heyun Lin
IPC分類
H02K1/27; H02K1/02; H02K1/14; H02K1/18
技術(shù)領(lǐng)域
permanent,magnet,magnets,rotor,magnetic,flux,stator,cobalt,core,motor
地域: Jiangsu

摘要

The present invention discloses a built-in hybrid permanent magnet memory motor with local magnetic circuits in parallel, including a hybrid permanent magnet rotor, a stator, armature windings and a rotating shaft. The armature windings are disposed on the stator, and the stator is disposed outside the hybrid permanent magnet rotor. The hybrid permanent magnet rotor includes a rotor core, first permanent magnets, second permanent magnets and V-shaped magnetic barriers. The rotor core is disposed outside the rotating shaft, the V-shaped magnetic barriers are disposed inside the rotor core, the V-shaped magnetic barriers with openings facing outwards are equally distributed in a circumferential direction of the rotor core, the first permanent magnet is disposed in the opening of the V-shaped magnetic barrier, the second permanent magnet is disposed between the two adjacent V-shaped magnetic barriers, a coercivity of the first permanent magnet is greater than a coercivity of the second permanent magnet, and cross sections of the first permanent magnets and the second permanent magnets are in a straight line. According to the present invention, the problem that the size design of the permanent magnet is limited by the space position is solved, and the anti-demagnetization ability of the low-coercivity permanent magnets and the flux weakening ability of the motor are enhanced.

說明書

1 2 3 4 5 6 7 8 9 10 11 12

Referring to FIG. 1 and FIG. 2 together, a built-in hybrid permanent magnet memory motor with local magnetic circuits in parallel involved in this embodiment includes a stator 1, armature windings 2, a hybrid permanent magnet rotor 3 and a non-magnetizer rotating shaft 4. The stator is disposed outside the hybrid permanent magnet rotor. The stator includes stator core teeth 1.1, a stator yoke 1.2 and the armature windings 2 disposed on the stator core teeth. The stator core teeth 1.1 are disposed between the stator yoke 1.2 and the hybrid permanent magnet rotor 3. A cavity 1.3 is formed between the adjacent stator core teeth 1.1 and used for accommodating the three-phase armature winding 2 wound on the stator core teeth 1.1.

權(quán)利要求

1
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