Complementary type magnetic gear double-rotor motor

A dual-rotor motor and magnetic gear technology, applied to electrical components, electromechanical devices, etc., can solve problems such as large torque ripples, achieve the effects of reducing magnetic flux leakage, improving torque transmission capacity, and reducing iron loss

Active Publication Date: 2016-10-26
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: Aiming at the above-mentioned prior art, a complementary magnetic gear dual-rotor motor is proposed to suppress the common problem of large torque ripple in magnetic gear dual-rotor motors with a small number of pole pairs

Method used

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  • Complementary type magnetic gear double-rotor motor
  • Complementary type magnetic gear double-rotor motor
  • Complementary type magnetic gear double-rotor motor

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention will be further described.

[0023] Such as figure 1 As shown, a complementary magnetic gear dual-rotor motor includes an inner rotor 1, an inner air gap 14, an outer rotor 2, an outer air gap 23, and a stator 3 from the inside to the outside.

[0024] The inner rotor 1 of the motor is formed by stacking silicon steel laminations, and is fixed on the shaft of the inner rotor 1 through a keyway 15 . The inner rotor of the motor includes an inner rotor iron core 12 , permanent magnets 11 for main magnetic poles and permanent magnets 13 for auxiliary magnetic poles. The main pole permanent magnets 11 are arranged in the form of spokes and embedded in the inner rotor. The end of the main pole permanent magnets 11 facing the motor shaft side is provided with an end slot 17 . Secondary pole permanent magnets 13 are embedded between the end slots 17 of two adjacent main magnetic pole permanent magnets 11 ,...

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Abstract

The invention discloses a complementary type magnetic gear double-rotor motor. The motor successively comprises a motor inner rotor, an inner air gap, a motor outer rotor, an outer air gap and a stator from inside to outside. The motor inner rotor comprises an inner rotor core and main magnetic pole permanent magnets embedded in the inner rotor core, an end portion, facing a motor rotating shaft side, of each main magnetic pole permanent magnet is provided with an end slot, and the motor inner rotor further comprises auxiliary pole permanent magnets embedded between the end slots. The motor outer rotor comprises an outer rotor core and a magnetic isolation ring supporting the outer rotor core. The motor adopts axial two-section complementary structure, that is to say, a magnetic barrier is adopted to respectively divide the inner rotor and the outer rotor into two sections, the sections respectively deviate for an electrical angle, and counter potential waveform optimization, positioning torque optimization and output torque optimization are achieved; and an implementation method of the section deviation angle is achieved through special design for rotor parts, a motor part does not need to be increased, and new assembling process does not need.

Description

technical field [0001] The invention relates to a complementary magnetic gear double-rotor motor, which is suitable for control fields such as hybrid driving of electric vehicles. The invention relates to the field of permanent magnet motors. Background technique [0002] Electric vehicle hybrid drive technology and electromagnetic gear technology are currently research hotspots in the field of electric motors. The power distribution system of hybrid electric vehicles can make the engine work in a high-efficiency state, but the power distribution technology with planetary gears as the core has been monopolized by Toyota Motor Group for a long time. In addition to commercial monopoly, the mechanical gear mechanism itself also has the disadvantages of backlash and wear, so the adoption of a fully electrified transmission system solution is also the general direction of the development of the automotive industry. [0003] In recent years, the electromagnetic gear technology in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/02
CPCH02K16/02
Inventor 程明文宏辉孙乐宋利华
Owner SOUTHEAST UNIV
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