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Rotor sheet for motor

A technology for punching rotors and rotors, which is applied in the field of rotor punching for motors. It can solve the problems of reducing motor efficiency, damage to dies, and increasing aluminum costs, and achieves the effects of reducing mold costs, ensuring product quality, and prolonging service life.

Inactive Publication Date: 2014-07-09
泰州市华源电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Rotor punching for low-voltage motors has always used open slots, and rotor punching dies are also designed with open slots. Because the punching slots are small, the strength of the punching die processing slots is weak, so it is easy to cause damage to the punching die and increase mold manufacturing costs. Affect the production schedule
In addition, when the rotor is made of cast aluminum, the use of rotor punching with an open slot design will easily cause the loss of aluminum during processing, which will increase the cost of aluminum. When the cast aluminum rotor is processed, it will easily cause residual debris and increase the stray loss of the motor. reduced motor efficiency

Method used

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  • Rotor sheet for motor

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Embodiment

[0013] Such as figure 1 As shown, a rotor stamping for a motor includes a rotor stamping body 1, on which the rotor stamping body 1 is provided with rotor stamping grooves 2 uniformly distributed along its circumference, and the rotor stamping grooves 2 are punched along the The radial extension of the sheet body is 50 pieces, and the rotor punching groove 2 is a closed groove.

[0014] The distance between the outer end of the rotor punching groove and the outer edge of the rotor punching sheet is 1mm.

[0015] After the motor rotor punching plate adopts the closed groove shape, there is no need for a middle sleeve in the cast aluminum mold, which reduces the cost of the mold, improves the production efficiency, and ensures the product quality. When the cast aluminum rotor is processed, it will not cause built-up edge residue, reduce the stray loss of the motor, and improve the efficiency of the motor.

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PUM

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Abstract

The invention discloses a rotor sheet for a motor. The rotor sheet comprises a rotor sheet body which is provided with rotor sheet grooves evenly distributed in the circumferential direction of the rotor sheet body, and the rotor sheet grooves are closed grooves. Due to the fact that the rotor sheet grooves are closed grooves, the overall strength of a die is high, the service life of the die is prolonged, and manufacturing cost of the sheet is low. Due to the fact that the rotor sheet grooves are closed grooves, a cast aluminum die middle sleeve is not needed, die cost is lowered, production efficiency is improved, product quality is guaranteed, in lathing of cast aluminum rotors, residual scraps can not be caused, stray losses of the motor is lowered, and motor efficiency is high.

Description

[0001] technology field [0002] The invention relates to a rotor punching sheet for a motor. Background technique [0003] Rotor punching for low-voltage motors has always used open slots, and rotor punching dies are also designed with open slots. Due to the small punching slots and the weak strength of the punching die processing slots, it is easy to cause damage to the punching die and increase mold manufacturing costs. affect the production schedule. In addition, when the rotor is cast aluminum, the use of rotor punching with open slot design will easily cause the loss of aluminum during processing, which will increase the cost of aluminum. When processing cast aluminum rotors, it will easily cause residual debris and increase the stray loss of the motor. Reduced motor efficiency. Contents of the invention [0004] The purpose of the present invention is to provide a rotor punching sheet for an electric motor, and the mold for processing the rotor punching sheet is rel...

Claims

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Application Information

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IPC IPC(8): H02K1/22
Inventor 秦文银
Owner 泰州市华源电机有限公司
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