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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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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a dual-rotor hub electric vehicle motor to solve the problems of unstable operation, small output torque and poor heat dissipation of the electric vehicle existing in the prior art

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

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Embodiment Construction

[0023] Such as Figure 1 to Figure 8 As shown, a double-rotor wheel 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, an inner rotor 3, an outer rotor 11 and an end cover 12 are connected by bolts 18, and the outer The rotor 11 includes a yoke and a permanent magnet. The yoke includes an inner and an outer yoke. The permanent magnet includes an inner and an outer rotor permanent magnet 2,1. 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 magnet provides 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, the outer rotor 11 is directly connected with the wheel, and the double-sided grooved stator forms an inner groove and an outer groove structure on the su...

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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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