Insulating system with double-strength, zero-air-gap and corona resistance for electric motor of non-gear permanent-magnetic tractor

An insulation system and motor technology, applied in the field of gearless permanent magnet traction machine motor double strength, zero air gap, corona-resistant insulation system, can solve the problems of partial discharge, short motor service life, motor insulation aging, etc. To achieve the effect of resisting excitation force and resonance, improving mechanical strength, and preventing ionization
CN100525012CInactive Publication Date: 2009-08-05JIANGSU ANJIE ELECTROMECHANICAL TECH
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU ANJIE ELECTROMECHANICAL TECH
Publication Date
2009-08-05
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention relates to a gearless, low-speed, high-torque rare earth permanent magnet synchronous traction motor with double strength, zero air gap, and a corona-resistant insulation system. The corona-resistant insulation system and its insulation method are suitable for rare-earth permanent-magnet synchronous motors with low speed and high torque, which are used for AC variable frequency power supply and frequent starting and braking. The insulation system includes magnet wire, main insulation, phase insulation, coil end insulation, insulation sleeve insulation, magnet wire insulation, lead wire insulation, slot wedge, outlet plate, impregnated varnish. The main insulation includes slot insulation, end gasket insulation, and interlayer insulation in the slot; end gasket insulation, slot inner interlayer insulation, and phase insulation use polyester film polyaramid fiber paper, and the electromagnetic wire of the motor stator coil is made of resistant Corona enamelled copper wire; impregnated stator core with winding, the impregnating varnish adopts solvent-free impregnating varnish based on epoxy polyester resin and unsaturated resin, and adopts vacuum impregnation.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a gearless, low-speed, high-torque rare earth permanent magnet synchronous traction motor with double strength, zero air gap, and a corona-resistant insulation system. The corona-resistant insulation system and its insulation method are suitable for rare-earth permanent-magnet synchronous motors with low speed and high torque, which are used for AC variable frequency power supply and frequent starting and braking. Background technique:

[0002] At present, the gearless permanent magnet traction machine motor insulation system only pays attention to the electric strength, ignoring the mechanical strength. The motor winding is full of air gaps, resulting in high-frequency pulse discharge and high-voltage discharge, which often cause the motor to burn out. Frequent starting and braking, electromagnetic excitation force and cyclic alternating pressure caused by vibration cause accelerated aging of the motor insulation, and the moto...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More