Coiled type small slot stator iron core and manufacturing method thereof
A technology of stator core and open stator, which is applied in the field of coiled small notch stator core and its manufacturing, can solve the problem of stator tooth leakage and cogging torque increase, and affect the magnetic field distribution of stator teeth and yoke And magnetic density, reduce the mechanical and electrical performance of the motor, etc., to achieve the effect of reducing cogging torque, improving magnetic field distribution and magnetic flux leakage, and improving performance
Active Publication Date: 2019-10-18
CHANGYING XINZHI TECH CO LTD
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Problems solved by technology
However, the large stator notch will affect the magnetic field distribution and magnetic density of the stator teeth and yoke, which will increase the stator tooth leakage and cogging torque, and reduce the mechanical and electrical performance of the motor.
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[0035] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.
[0036] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.
[0037] Such as Figure 1-Figure 3 As shown, it is a specific preferred application embodiment of the present invention. The stator...
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The invention discloses a coiled type small slot stator iron core. The stator iron core at least comprises two coiled stator material belts, and is formed by welding or riveting the material belts; and the tooth shapes of the stator material belts include an L shape or an asymmetric T shape. In addition, the invention discloses a manufacturing method of the coiled type small slot stator iron core.The manufacturing method comprises the following steps: a steel belt is blanked to form the stator material belts; the two coiled material belts are reversely wound together or the two stator material belts are overlapped together and coiled to form the coiled material belts; and finally the material belts are welded or riveted to form the stator iron core. A slot is greatly reduced due to maximum entities of teeth, so that a gap of a motor is reduced, the magnetic field distribution and the flux leakage between a stator and a rotor of the motor are improved, the cogging torque is reduced, and the performance of the rotary motor can be greatly improved.
Description
technical field [0001] The invention relates to the field of stator cores and manufacturing techniques, in particular to a coiled small-notch stator core and a manufacturing method thereof. Background technique [0002] The iron core is an important part of all kinds of motors and the main component of the cost of the motor. For the processing of motor cores, the traditional processing technology is punching-stacking-welding (riveting) thin plate materials. If the recycling of corners is not included, the raw material utilization rate of this process is less than 20%, and the processing efficiency is low. In order to improve material utilization and processing efficiency, the current "rolling process" used in the manufacturing industry is to use thin plate strips instead of traditional thin plate materials, through punching toothed steel strips-spiral winding-lamination-welding-extrusion Compression molding. Using the rolling process to process the motor core, the utiliza...
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Login to View More IPC IPC(8): H02K1/16H02K15/02
CPCH02K1/16H02K1/165H02K15/026H02K2201/06Y02T10/64
Inventor 祝喜明杨杰
Owner CHANGYING XINZHI TECH CO LTD