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Heating method of motor rotor

A technology for motor rotors and heating methods, which is applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve the problems of large-scale production, large tunnel furnace volume, and high power consumption, and achieve shortened heating time and equipment Effects of size reduction and power consumption reduction

Inactive Publication Date: 2010-09-22
HARBIN DONGAN ENGINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can raise the temperature of the motor rotor to the required temperature, the tunnel furnace has a large volume, and the power consumption during the heating process of the motor rotor is high, and it takes a long time. The power consumption of a single piece can reach 0.15 degrees, and the time is 10. Minutes, can not meet the needs of mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] Heating of an alternator rotor for an automobile:

[0017] 1. Prepare the motor rotor that needs to be heated;

[0018] 2. Place the motor rotor in the induction coil of the intermediate frequency generator with 12 coil turns;

[0019] 3. Pass an alternating magnetic field of 11KHz into the induction coil for 20 seconds;

[0020] 4. Take out the motor rotor and measure the temperature.

[0021] The final measured temperature of the motor rotor is 140°C, which meets the requirements.

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Abstract

The invention relates to a heating method of a motor rotor, which changes the traditional heating method of the motor rotor, and changes the original heating of a tunnel furnace to the heating of a middle-frequency generator, and adopts appropriate technical parameters to realize the heating requirement. The size of the equipment is greatly reduced, and the space is saved. At the same time, by adopting the middle-frequency generator to heat, the electric power consumption is reduced, and a single work piece consumes the electric power about 0.07 degrees; and the heating time is also greatly shortened. The heating method can be widely applied to the mass production process of the motor.

Description

technical field [0001] The invention relates to a heating technology, in particular to a heating method for a motor rotor. Background technique [0002] The motor is a commonly used device in the existing machinery industry. During the conventional processing method of the rotor, it needs to be heated to 110-200°C for subsequent insulation and fixing. At present, the commonly used processing method is to use the tunnel furnace heating method, that is, the motor rotor that needs to be heated is placed in the tunnel furnace for heating. Although this method can raise the temperature of the motor rotor to the required temperature, the tunnel furnace has a large volume, and the power consumption during the heating process of the motor rotor is high, and it takes a long time. The power consumption of a single piece can reach 0.15 degrees, and the time is 10. Minutes, can not meet the needs of mass production. Invention content: [0003] The object of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/12
Inventor 石兆琦王年友张德星梁志伟罗金元李宇张泽泉李春柏宋杰宫伟付洪旭
Owner HARBIN DONGAN ENGINE GRP
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