Novel motor iron core
An iron core, a new type of technology, applied in the direction of electrical components, electromechanical devices, magnetic circuit shape/style/structure, etc., can solve the problem that the assembly requirements of the motor iron core and the motor shaft cannot be realized, the flatness of the upper and lower surfaces of the motor iron core is out of tolerance, Difficulty of the motor shaft, etc.
Pending Publication Date: 2021-01-15
苏州范斯特机械科技有限公司
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Problems solved by technology
[0002] In the prior art, the shaft openings of the conventional motor cores are designed as pure circles. In order to increase the speed and torque of the motor, it is often hoped that when the motor shaft and the motor core are spliced together, the interference between the motor shaft and the motor core can be increased. , so generally the diameter of the motor shaft is larger than the diameter of the motor core shaft, but if the interference is too large, the friction between the motor shaft and the iron core will increase, resulting in excessive flatness of the upper and lower surfaces of the motor core, or The motor shaft is difficult to assemble and spliced into the motor core, and the assembly requirements of the motor core and the motor shaft cannot be realized
Method used
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[0021] As shown in the accompanying drawings, the present invention relates to a new type of motor core, which is formed by stacking multiple pieces of metal laminations. Each lamination is provided with a shaft hole 3 for the same shaft to pass through. 27 relief grooves 31 are evenly distributed on the inner edge of the hole 3 , and convex teeth are formed between every two adjacent relief grooves 31 .
[0022] In this embodiment, as attached image 3 As shown, the diameter of the circle where the groove top 311 (that is, the convex tooth) of the give way groove 31 of the axial hole 3 on each lamination is 60mm, and the diameter of the circle where the groove bottom 312 of each give way groove is 61.2mm, compared to The diameter of the circle where the top 311 of each relief groove 31 is located is 1.2 mm larger, and the angle difference between any adjacent laminations is 45°, so that the relief grooves 31 between every two adjacent laminations are staggered , thus leaving...
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A novel motor iron core is formed by buckling and stacking a plurality of metal laminations, the center of each lamination is provided with a shaft hole allowing the same shaft to penetrate through, aplurality of receding grooves are evenly distributed in the inner edge of each shaft hole, convex teeth are formed between every two adjacent receding grooves, an angle a exists between any two adjacent laminations, and the receding grooves between two adjacent laminations are staggered. The novel motor iron core has the advantages that the novel motor iron core is formed by laminating the laminations with the shaft holes, the plurality of receding grooves are uniformly distributed on the inner edges of the shaft holes, the convex teeth are formed between every two adjacent receding grooves,and an angle alpha is formed between any two adjacent laminations, therefore, the receding grooves between two adjacent laminations are staggered, and a space which is deformed due to large magnitudeof interference when the shaft holes match the shaft is reserved, so that the use requirements of high rotating speed and high torque of the motor are met.
Description
technical field [0001] The invention relates to a novel motor iron core. Background technique [0002] In the prior art, the shaft openings of the conventional motor cores are designed as pure circles. In order to increase the speed and torque of the motor, it is often hoped that when the motor shaft and the motor core are spliced together, the interference between the motor shaft and the motor core can be increased. , so generally the diameter of the motor shaft is larger than the diameter of the motor core shaft, but if the interference is too large, the friction between the motor shaft and the iron core will increase, resulting in excessive flatness of the upper and lower surfaces of the motor core, or The motor shaft is difficult to assemble and spliced into the motor iron core, and the assembly requirements of the motor iron core and the motor shaft cannot be realized. Contents of the invention [0003] The technical problem to be solved by the invention is speci...
Claims
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IPC IPC(8): H02K1/22H02K1/28
CPCH02K1/22H02K1/28H02K2213/03
Inventor 王洪波项源应宣敏
Owner 苏州范斯特机械科技有限公司