Stator, motor and automobile
A technology for stators and automobiles, which is applied to electrical components, electromechanical devices, electric components, etc., and can solve the problems of increased torque output capacity of driving motor reverse rotation, unfavorable energy saving, waste, etc.
Inactive Publication Date: 2021-06-04
GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD +1
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- Application Information
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Problems solved by technology
[0003] However, for automobiles, the reverse rotation of the drive motor is only used for reverse driving, and the required torque is far lower than the peak torque that the drive motor can output in reverse, so the conventional method of increasing the torque density will increase the positive Rotation torque and reverse torque, while increasing the forward rotation torque output capacity of the drive motor, will also increase the reverse rotation torque output capacity of the drive motor, resulting in more waste, which is not conducive to energy saving
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[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] refer to figure 1 , figure 1 It is a partial structure diagram of a stator in the prior art, the stator has stator teeth, and the stator teeth have symmetrically arranged left stator tooth tips 6 and right stator tooth tips 7, that is, left stator tooth tips 6 and right stator teeth The distances between the ends of the tips 7 and the side walls connected to each other are equal. Taking the counterclockwise direction as the forward rotation direction of the motor, when the motor rotates forward, the magnetic density saturation point of the stator teeth is located at the end of the stator tooth tip 7 on the right. The magnetic density saturation refers to the magnetic material due to the physical structure. The limitation ...
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The embodiment of the invention provides a stator, a motor and an automobile. The stator is applied to the motor and comprises a plurality of stator teeth, and the two sides of each stator tooth comprise a first side wall, a second side wall, a first stator tooth tip and a second stator tooth tip. The first side wall is connected with the first stator tooth tip, the second side wall is connected with the second stator tooth tip, and the direction of the first stator tooth tip is the same as the forward rotation direction of the motor; the tooth tip direction of the second stator is the same as the reverse rotation direction of the motor; the distance between the tail end of the first stator tooth tip and the first side wall is larger than the distance between the tail end of the second stator tooth tip and the second side wall. Therefore, the forward rotation torque output capacity of the driving motor is improved, the reverse rotation torque output capacity of the driving motor is reduced, energy waste is reduced, and energy saving is facilitated.
Description
technical field [0001] The invention relates to the field of automobile motors, in particular to a stator, a motor and an automobile. Background technique [0002] The motor of the car is the power source of the car. Increasing the torque density of the motor in the car drive system can reduce the weight and volume of the drive system under the condition of satisfying the output power and torque, and increase the vehicle layout space and driving range. At present, the peak torque of the drive motor used in the car is equal to the peak torque of the forward rotation and the reverse rotation. The conventional method of increasing the torque density, such as increasing the rotor reluctance torque, is to increase the forward rotation torque and the reverse rotation at the same time. moment. [0003] However, for automobiles, the reverse rotation of the drive motor is only used for reverse driving, and the required torque is far lower than the peak torque that the drive motor ca...
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IPC IPC(8): H02K1/14
CPCH02K1/146
Inventor 孔庆波徐鹏
Owner GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD