A birotor wheel hub electric automobile motor

An electric vehicle, double rotor technology, applied in electric vehicles, motors, magnetic circuit rotating parts, etc., can solve the problems of poor motor heat dissipation, small output torque, unstable motor operation, etc., to achieve large output torque and high speed at the same speed. , the effect of increasing the area

Inactive Publication Date: 2014-03-19
BEIJING INFORMATION SCI & TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a dual-rotor hub electric vehicle motor to solve the problems of unstab

Method used

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  • A birotor wheel hub electric automobile motor
  • A birotor wheel hub electric automobile motor
  • A birotor wheel hub electric automobile motor

Examples

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Example Embodiment

[0023] Such as Figure 1 to Figure 8 As shown, a dual-rotor hub electric vehicle motor includes an outer rotor 11, an inner rotor 3, a stator 8, a bearing 6, an end cover 12, a coil, the inner rotor 3 and the outer rotor 11 and the end cover 12 are connected by bolts 18. The rotor 11 includes a yoke and a permanent magnet. The yoke includes inner and outer yokes. The permanent magnets include inner and outer rotor permanent magnets 2, 1, and the inner and outer permanent magnets 2, 1 are combined with the inner and outer yokes. The rotor 11 is connected to the wheel, the permanent magnets provide a magnetic field, and a magnetic isolation material 10 is arranged between the stator 8 and the outer rotor 11.

[0024] The inner and outer permanent magnets 2, 1 are combined with the inner and outer yokes 16, and the outer rotor 11 is directly connected to the wheel. The double-sided slotted stator forms an inner and outer groove structure on the surface of the stator. The slots are ...

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Abstract

Provided is a birotor wheel hub electric automobile motor comprising an external rotor, internal rotors, a stator and a bearing. The internal rotors are arranged in a symmetrical mode. The symmetrical internal rotors are connected with a stator axle through the bearing. The internal and external surfaces of the stator are of double-face grooving structures. Coil windings which are distributed symmetrically are embeded in the double-face grooving structures arranged on the stator. The coil windings are separately connected with corresponding ECUs, and are separately controlled by the ECUs. Each ECU is connected with a main ECU of each wheel of a vehicle system. The coil windings are electrically connected with a power supply. The beneficial effects of the present invention are that: problems of burnout due to overheating of the wheel hub motor is solved through alternative working of an appropriate number of independent motors, so that the utility life of the motor is prolonged; since the coil windings in the stator are distributed in the symmetrical mode, when the birotor wheel hub electric automobile motor of the invention works, the symmetrical distribution of the coil windings enables a stress applied to the motors in a symmetrical direction to be offset, so that friction of the axle and the bearing is reduced, and the usage life is prolonged.

Description

technical field [0001] The invention relates to an electric vehicle wheel hub motor device, in particular to a dual-rotor wheel hub electric vehicle motor. Background technique [0002] In-wheel motor drive technology is an advanced approach to electric vehicles. This technology was invented by American Robert as early as the 1950s. In 1900, Porsche was the first to manufacture electric vehicles with front wheels equipped with hub motors. In the 1970s, this technology was applied in fields such as mine transport vehicles. As for the in-wheel motors used in passenger cars, Japanese manufacturers have developed this technology earlier and are currently in a leading position. International auto giants including GM and Toyota have also been involved in this technology. [0003] The problem of energy shortage and environmental pollution has become the main concern of the world recently, and the development of ultra-low emission electric vehicles is one of the important ways to ...

Claims

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Application Information

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IPC IPC(8): H02K16/02H02K1/16H02K1/27H02K3/12
CPCY02T10/641Y02T10/64
Inventor 童亮林慕义王准王大江李竹芳
Owner BEIJING INFORMATION SCI & TECH UNIV
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