Multi-stage stator and rotor combined wheel side reduction drive assembly
A wheel-side deceleration and drive assembly technology, which is applied in the direction of electric components, electromechanical devices, electrical components, etc., can solve the problems of difficult layout of motors and reducers, volume and self-heavyness of hub motors and reducers, and achieve wide-area efficiency Effect of modularization, reduction of torque ripple and noise, and high-efficiency operation
Active Publication Date: 2020-06-12
CHONGQING UNIV
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Problems solved by technology
[0002] The in-wheel motor technology is also called the in-wheel motor technology. Its biggest feature is that it integrates the power device, transmission device and braking device into the wheel hub, which greatly simplifies the mechanical parts of the electric vehicle. The existing electric wheel In the drive assembly, the motor and the wheel reducer are usually arranged in the hub assembly. For smaller motors and reducers, they can be directly integrated and installed in the inner circle space of the hub to reduce the size of the entire electric motor. The volume of the wheel assembly, if the size of the motor and the reducer is large, they should be installed on the same side of the hub, and for electric vehicles with heavy loads such as electric buses, the volume of the hub motor and the reducer are relatively large compared to their own weight. Large, it is difficult to arrange the motor and reducer on the same side of the hub
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[0023] figure 1 It is a structural schematic diagram of the first embodiment of the present invention. As shown in the figure, the multi-stage stator-rotor combined wheel side reduction drive assembly of this embodiment includes a hub 1, a multi-stage stator-rotor reduction motor and a multi-stage The power of the stator-rotor deceleration motor is transmitted to the wheel-side reducer of the hub 1; the multi-stage stator-rotor deceleration motor and the wheel-side reducer are independent modules and are arranged on both axial sides of the hub 1; as the multi-stage stator of the hub 1 motor Rotor geared motors have two or more stages of stators and rotors. Each stage of stators and rotors can output power and have an independent reduction ratio output. Therefore, the maximum working efficiency and maximum torque of each pole motor are different. Through their working combination, wide torque and wide speed range can be achieved and high working efficiency can still be maintain...
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The invention discloses a drive assembly of multi-stage fixed rotor combined wheel-sided reduction which comprises a wheel hub, a speed reduction motor with multi-stage fixed rotor and a wheel-sided reducer which is used for transmitting the power of the speed reduction motor with multi-stage fixed rotor to the wheel hub. The speed reduction motor with multi-stage fixed rotor and the wheel-sided reducer are placed on two sides of the wheel hub respectively, and are independent modules. The drive assembly is capable of using the structure of the existing vehicle wheel-sided reducer, and thus high efficiency of wide domain and modularization driven by multi-motors are achieved, high-efficiency vehicle operation in a wide range of torque / speed is guaranteed, torque fluctuation and noise are reduced, power density is improved and cost is reduced.
Description
technical field [0001] The invention relates to the field of hub motors, in particular to a multi-stage stator-rotor combined wheel-side deceleration drive assembly. Background technique [0002] The in-wheel motor technology is also called the in-wheel motor technology. Its biggest feature is that it integrates the power device, transmission device and braking device into the wheel hub, which greatly simplifies the mechanical parts of the electric vehicle. The existing electric wheel In the drive assembly, the motor and the wheel reducer are usually arranged in the hub assembly. For smaller motors and reducers, they can be directly integrated and installed in the inner circle space of the hub to reduce the size of the entire electric motor. The volume of the wheel assembly, if the size of the motor and the reducer is large, they should be installed on the same side of the hub, and for electric vehicles with heavy loads such as electric buses, the volume of the hub motor and...
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IPC IPC(8): H02K7/116
CPCH02K7/116
Inventor 舒红宇周成罗霜
Owner CHONGQING UNIV