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Insulating structure for rotor coil for high-voltage wound rotor motor

A technology of wound rotor motor and rotor coil, applied in the shape/style/structure of winding insulation, winding insulation material, asynchronous induction motor, etc. problems, to achieve the effect of saving effective material consumption, reducing groove area, and long-term safety

Inactive Publication Date: 2011-01-26
WUXI ZHONGDA MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coil is wrapped with narrow strips of mica tape, which causes the surface of the coil to be not smooth enough after the coil is wrapped and insulated, which brings great trouble to the insertion of the coil. shape size enlargement
This will easily cause the motor to loosen under the centrifugal force and magnetic pull of the rotor during operation, which will easily cause accidents.

Method used

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  • Insulating structure for rotor coil for high-voltage wound rotor motor
  • Insulating structure for rotor coil for high-voltage wound rotor motor
  • Insulating structure for rotor coil for high-voltage wound rotor motor

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0010] As shown in the figure, the present invention mainly consists of polyamide film polyaramid fiber paper composite material layer 1, polyimide film tape 2, glass powder mica platinum 3, glass powder mica tape 4, copper coil 5, epoxy phenolic glass The layout plate 6, the modified insulating paint 7, the rotor core 8 and the slot wedge 9 are composed of components.

[0011] The insulation structure of the rotor coil of the high-voltage wound rotor motor includes polyamide film polyaramid fiber paper composite material layer 1, polyimide film tape 2, glass powder mica platinum 3, glass powder mica tape 4, copper coil 5, Epoxy phenolic glass cloth plate 6, modified insulating paint 7, rotor core 8 and slot wedge 9, copper coil 5 installed in rotor core 8, each copper coil 5 is coated with glass powder mica platinum 3, poly Imide film belt 2 and polyamide fil...

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PUM

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Abstract

The invention relates to an insulating structure for a rotor coil for a high-voltage wound rotor motor. Copper coils are arranged in a rotor core; glass powder mica platinum, a polyimide thin film tape and a polyimide film polyaryl amide fiber paper composite material layer are coated on each copper coil; a slot wedge is formed on the polyimide film polyaryl amide fiber paper composite material layer; an epoxy novolac glass cloth plate is arranged between two copper coils; the glass powder mica platinum is coated on a linear segment of each copper coil; improved insulating varnish is coated on an inner surface of the glass powder mica platinum; the polyimide thin film tape is coated on the glass powder mica platinum; and an outer surface of the glass powder mica platinum and an outer surface of the polyimide thin film tape are arranged in parallel. The insulating structure for the rotor coil for the high-voltage wound rotor motor has the advantages of uniform insulating thickness of the linear segment of the rotor coil, smooth surface, convenient penetration of the rotor coil in the rotor core, and capacities of reducing groove shape area, saving the usage of effective materials, reducing manufacturing labor hour and guaranteeing safe and reliable operation of the motor.

Description

technical field [0001] The invention relates to an insulation structure of a rotor coil of a high-voltage wound rotor motor, in particular, it is mainly used for the insulation structure of a rotor coil of a high-voltage three-phase wound rotor asynchronous motor. Background technique [0002] At present, high-voltage wound rotor motors are mainly used in cement industry, mine hoisting and other places that require large starting torque and frequent starting. However, high-voltage wound rotor motors use formed coils, and the rotor windings are convenient for series connection of resistors, the number of slip rings is the least, and can produce good electrical performance. Therefore, the rotor windings of this type of motors are all connected into three phases and adopt double-layer windings. Since the windings in the same slot do not necessarily belong to the same phase, the two layers of windings must be insulated. [0003] Due to the large centrifugal force of the rotor ...

Claims

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Application Information

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IPC IPC(8): H02K3/30H02K3/34H02K17/12
Inventor 孙成磊舒冬冬
Owner WUXI ZHONGDA MOTORS
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