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Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor

A permanent magnet synchronous, double-ring technology, applied to synchronous motors with stationary armatures and rotating magnets, electric components, cooling/ventilation devices, etc., can solve the problems of permanent magnet demagnetization, poor heat dissipation conditions, and scrapping

Active Publication Date: 2012-10-03
湖北久特机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages that the common permanent magnet synchronous motor rotor has poor cooling conditions and is easily scrapped due to the demagnetization of the permanent magnet, and provides a permanent magnet synchronous motor with double annular rotating heat pipes cooling the rotor

Method used

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  • Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor
  • Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor
  • Permanent magnet synchronous motor with dual annular rotation heat tube for cooling rotor

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Embodiment Construction

[0029] The present invention is further described below in conjunction with accompanying drawing.

[0030] refer to image 3 , Figure 4 with Figure 26 , The permanent magnet synchronous motor with dual annular rotating heat pipes cooling the rotor is composed of a base end cover part 1, a base part 3, a cooling end cover part 4, a rotor part 9 and a protective part. The base end cover part 1 and the cooling end cover part 4 are installed on the two ends of the base part 3 respectively, and the rotor part 9 is installed on the axis of the base end cover part 1, the base part 3 and the cooling end cover part 4, and the protection The components are mounted on the cooling cover part 4 and the rotor part 9 .

[0031] refer to Figure 5 , Image 6 ,with Figure 7 , The rotor component 9 is composed of a rotor weldment, a bearing 11, a permanent magnet magnetic steel 14, a rotor sealing ring 16, and a double-ring rotating heat pipe cooler. The rotor weldment is welded toget...

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Abstract

The invention discloses a permanent magnet synchronous motor with a dual annular rotation heat tube for cooling a rotor, which is composed of a base end cover component, a motor base component, a cooling end cover component, a rotor component and a protective component. When the motor is in operation, heat generated by the rotor is conducted onto the outer surface of a rotating shaft sleeve by a dual annular rotation heat tube cooler; when a screw pump oil pumping unit is driven, the heat conducted onto the outer surface of the rotating shaft sleeve is radiated into the atmosphere in a natural air cooling manner, and a fan assists in convective circulation, so as to quickly cool a rotor permanent magnet and avoid demagnetization caused by over-temperature rising; and heat generated by the copper loss and iron loss of a stator is radiated into the atmosphere via cooling fins on the outer surface of the motor base. When the permanent magnet synchronous motor with the dual annular rotation heat tube for the cooling rotor is taken as a universal motor, heat conducted onto the outer surface of the rotating shaft sleeve is radiated by an air flow generated by the fan at a high rotation speed, and the air flow flows through the ventilation slots of the cooling end cover component to cool the ventilation fins on the outer surface of the motor base.

Description

technical field [0001] The invention relates to a permanent magnet synchronous motor with double annular rotating heat pipes cooling the rotor, which relates to a motor used in mechanical equipment, in particular to a permanent magnet synchronous motor with double annular rotating heat pipes cooling the rotor. Background technique [0002] In permanent magnet synchronous motors, since the rotor rotates synchronously with the stator magnetic field, the eddy current loss in the rotor is often ignored. In fact, the stator cogging effect, the non-sinusoidal distribution of the winding magnetomotive force and the harmonic magnetomotive force generated by the harmonic current in the winding will also cause eddy current loss in the rotor permanent magnet and the rotor yoke. Although the rotor eddy current loss is very small compared with the stator copper loss and iron loss, the rotor heat dissipation condition is not good, and the eddy current loss may cause a high temperature ris...

Claims

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Application Information

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IPC IPC(8): H02K21/14H02K1/27H02K9/197H02K9/06
Inventor 赵晓东
Owner 湖北久特机电科技有限公司
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