Stator core and motor
A stator core and stator tooth technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the restrictions on the popularization and application of axial flux motors, the complex production process of stator punched iron cores, and the uneven distribution of motor tooth slots and other issues, to achieve the effect of improving motor performance and power density, improving motor performance, and reducing magnetic flux leakage between teeth and teeth pairs
Active Publication Date: 2021-06-25
ZHUHAI KAIBANG MOTOR MFR +1
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Problems solved by technology
[0003] Although the axial flux motor has the characteristics of high efficiency and high power density, its magnetic circuit structure makes the production process of the stator punched iron core complicated, and there are bottlenecks such as winding, which restricts the popularization and application of the axial flux motor.
The teeth of the stator teeth of the traditional axial motor are evenly distributed along the circumference, and the slots of two adjacent stator teeth are in an angle structure, that is, the inner slot is small and the outer slot is large, resulting in uneven distribution of motor slots and The slot torque is large, which affects the performance of the motor
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Embodiment Construction
[0024] Such as figure 1 with figure 2 As shown, the motor proposed in the implementation of the present invention is an axial flux motor, and the motor includes a stator and a rotor 4 , and the stator includes a stator core and a stator winding 3 . The stator core includes a stator yoke 1 and a plurality of stator teeth 2 , and a stator winding 3 is wound on the stator teeth 2 . In the figure, the direction X represents the axial direction, and the direction Y represents the radial direction.
[0025] The circumferential, axial and radial directions mentioned below all refer to the circumferential direction of the stator yoke, the axial direction of the stator yoke and the radial direction of the stator yoke, which are different from the circumferential direction of the stator yoke, the axial direction of the stator yoke and the radial direction of the stator yoke of conventional motors. The radial definition of the yoke is the same.
[0026] The stator yoke 1 is composed ...
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The invention discloses a stator iron core and a motor. The stator iron core includes a stator yoke and a plurality of stator teeth, the plurality of stator teeth are arranged at intervals along the circumferential direction of the stator yoke, and the plurality of stator teeth are located The multiple stator teeth are divided into multiple stator tooth pairs, the minimum distance between two stator teeth in each stator tooth pair is A, and the minimum distance between two adjacent stator tooth pairs is B , and A≤B. In the present invention, since A≤B, the cogging torque of the motor can be reduced, the magnetic flux leakage between teeth and pairs of teeth can be reduced, and the performance of the motor can be improved.
Description
technical field [0001] The invention relates to the technical field of motors, and more specifically relates to a stator core and a motor. Background technique [0002] With the guidance of the government's energy-saving policy and the needs of market development, the direct current of household appliances fans has gradually become a trend. At present, the brushless motors used in the industry are of radial magnetic field structure (that is, the magnetic field is distributed radially along the rotor) and the power density of the motor is low. That is, the material Low utilization. Affected by the rising market price of motor raw materials, high power density motors have become the development trend of brushless DC motors. Axial flux motors are gradually being popularized and applied due to their performance advantages. [0003] Although the axial flux motor has the characteristics of high efficiency and high power density, its magnetic circuit structure leads to complex pr...
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IPC IPC(8): H02K1/14H02K1/27
CPCH02K1/145H02K1/2793H02K2201/12
Inventor 高晓峰李庆陈东锁
Owner ZHUHAI KAIBANG MOTOR MFR