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Built-in suspended integrated type hub motor drive electric wheel

An in-wheel motor, an integrated technology, applied in motors, electric vehicles, synchronous motors with static armatures and rotating magnets, etc., can solve the problem that the inner rotor structure cannot be realized, increase the variation of the magnetic gap of the motor, and affect the motor. torque performance and other issues, to achieve the effect of improving dynamic characteristics, improving vibration characteristics, and improving service life

Active Publication Date: 2015-01-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system adds elastic elements between the rim and the motor rotor, which will increase the variation of the magnetic gap of the motor and affect the torque performance of the motor; and its structural characteristics determine that a large-diameter bearing is required between the stator and the rotor of the motor. The weight of the electric wheel is increased; at the same time, only the structure of the outer rotor can be used, and the structural scheme of the inner rotor cannot be realized; therefore, the traditional wheel structure needs to be modified

Method used

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  • Built-in suspended integrated type hub motor drive electric wheel
  • Built-in suspended integrated type hub motor drive electric wheel
  • Built-in suspended integrated type hub motor drive electric wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, the built-in suspension integrated in-wheel motor-driven electric wheel in this embodiment includes in-wheel motors, brakes, damping mechanisms, unequal-length double-wishbone independent suspensions and wheels, and the wheels include rims 14, wheel hubs 12, tires 15 etc.

[0039]The damping mechanism includes an elastic element 2-1 and an elastic element 2-2. The in-wheel motor includes an outer stator (including iron core and winding) 1-3, an inner rotor composed of a permanent magnet 1-4 and a rotor yoke 1-5, a housing 1-1, a rotor support frame 1-6, and an outer The stator is fixed on the shell 1-6, the permanent magnet 1-4 is glued to the surface of the rotor yoke 1-5, and the rotor yoke 1-5 is connected to the rotor support frame 1-6 through threads. The housing 1-1 is connected to the joint arm 3 through the first elastic element 2-1, and is connected to the support shaft of the wheel through the elastic element 2-2, which ensures the...

Embodiment 2

[0046] In this embodiment, except that the brake is an electromagnetic brake disc, all the other features are the same as in Embodiment 1.

[0047] Such as figure 2 As shown, the brake is a multi-disc electromagnetic brake, including a friction plate 9-16, a pressure plate 9-15, a yoke 9-11, an armature 9-17, and the friction plate 9-16 and the armature 9-17 are mounted on 13-3 on the planet carrier, and rotates with the planet carrier 13-2; the pressure plate is installed on the shell 1-1; coil 9-12 is wound in the inner cavity of the yoke 9-11, and the yoke 9-11 is installed on the In the annular cavity formed by the casing 1-1 and the ring gear 13-4; the lead wire 9-14 of the electromagnetic brake is buried in the surface of the motor casing 1-1. When braking, a current is passed into the coil, and the magnetic field in the yoke attracts the armature to the end of the pressure plate, and presses the pressure plate and the friction plate to achieve braking; when the brake ...

Embodiment 3

[0050] In this embodiment, except that the unequal-length double-wishbone independent suspension is replaced by a multi-link structure, other features are the same as those in Embodiment 1.

[0051] Such as image 3 As shown, the multi-link structure includes a longitudinal swing arm, a transverse swing arm 31, a tie rod 38, a joint arm 33 and a shock absorber, and the longitudinal swing arm, transverse swing arm 31 and joint arm 33 are integrally formed; The longitudinal swing arm and the transverse swing arm 31 are indirectly connected to the vehicle frame through pins; one end of the tie rod 38 is connected to the joint arm through the ball stud 37, and the other end is indirectly connected to the rear beam of the vehicle frame through bolts; the shock absorber 39 The upper part of the shock absorber is provided with a shock-absorbing coil spring 36, the upper end of the shock absorber 39 is connected with the vehicle body, and the lower end is connected with the joint arm ...

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Abstract

The invention discloses a built-in suspended integrated type hub motor drive electric wheel. The built-in suspended integrated type hub motor drive electric wheel comprises a hub motor, a brake, a wheel, a vibration absorption mechanism and a speed reduction mechanism, the speed reduction mechanism comprises a sun wheel, a planetary wheel, a planetary rack and a tooth ring, and the vibration absorption mechanism comprises a first elastic element and a second elastic element; the hub motor is connected with a vehicle through the first elastic element and connected with a support axle of the wheel through the second elastic element; the speed reduction mechanism comprises the sun wheel, planetary wheel, planetary rack and tooth ring. Compared with the prior art, the built-in suspended integrated type hub motor drive electric wheel has advantages of compact structure, light weight, large power density and easiness in arrangement on the wheel, and moreover, the dynamic property and safety of the vehicle are obviously improved, the dynamic characteristic of an electric wheel drive system is effectively improved, and the grounding performance of the wheel and the service life of spare parts are improved.

Description

[0001] This application is a divisional application with the application number 201210018416.7, the application date is January 18, 2012, and the name is "an electric wheel driven by a built-in suspension integrated hub motor". technical field [0002] The invention relates to a power transmission system in an electric vehicle, in particular to an electric wheel driven by a built-in suspension integrated wheel hub motor. Background technique [0003] The growing concern about environmental pollution and energy consumption has accelerated the development of electric vehicles. Among them, the obvious technical advantages of electric vehicles driven by in-wheel motors in terms of vehicle general layout structure, active chassis control and convenient handling have attracted widespread attention from industry and academia. Many famous automobile companies and research institutions have successively launched in-wheel motors. drive concept car. [0004] The driving method of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00B60T1/06H02K21/24H02K1/18
CPCY02T10/64
Inventor 罗玉涛
Owner SOUTH CHINA UNIV OF TECH
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