Low-voltage efficient motor high heat conduction and insulation structure and manufacturing method thereof

Abstract

The invention relates to a low-voltage efficient motor high heat conduction and insulation structure and a manufacturing method thereof. The insulation structure in a motor comprises a stator iron core, a slot wedge, and motor insulation paper, wherein the stator iron core is a high heat conduction stator iron core with a winding, the iron core is of a high heat conduction compound insulation paste impregnating insulating structure, the slot wedge is of a high heat conduction drawing slot wedge insulation structure, and the motor insulation paper is high heat conduction compound insulation paper. The method for manufacturing the high heat conduction compound insulation paste, a drawing slot wedge, the high heat conduction compound insulation paper and the high heat conduction stator core dipping with the winding is provided according to the insulation structure. Due to the fact that the high heat conduction insulation compound paste is used in the low-voltage motor stator iron core, the slot wedge and the motor insulation paper, the heat conduction coefficient of the low-voltage motor can be improved to 0.3-0.4163W/(m. k), and the insulation meets the F level and H level motor insulation requirements. The purposes of reducing the motor loss, improving efficiency and reducing the heat emitting quantity and temperature rising are achieved. The stability and the reliability of working of the machine can be improved, and the service life of the motor is prolonged.

Description

technical field [0001] The invention belongs to the technical field of motor equipment, and relates to a low-voltage high-efficiency motor with high thermal conductivity and insulation structure and a manufacturing method thereof. Background technique [0002] At present, domestic low-voltage motors are developing towards high efficiency, but the efficiency of motors is limited by many aspects, especially the constraints of electromagnetic and raw materials. Usually, the efficiency of the motor increases, and the temperature of the motor rises accordingly. Once the temperature of the motor rises, the phenomenon of burning and damage to the motor will occur under long-term operation, and there are problems of short service life and potential safety hazards. In the current low-voltage motors on the market, the thermal conductivity of the insulating adhesive used for impregnating the stator core in its structure is very low, generally 0.16W / (m.k), and the motor slot wedge does ...

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Problems solved by technology

[0002] At present, domestic low-voltage motors are developing towards high efficiency, but the efficiency of motors is limited by many aspects, especially the constraints of electromagnetic and raw materials.

Usually, the efficiency of the motor increases, and the temperature of the motor rises accordingly. Once the temperature of the motor rises, the phenomenon of burning and damage to the machine will occur under long-term operation, and there are problems of short service life and potential safety hazards.

In the current low-voltage motors on the market, the thermal conductivity of the insulating adhesive used for impregnating the stator core in its structure is very low, generally 0.16W / (m.k), and the motor slot wedge does not have high thermal conductivity. The insulating paper used for the motor is Ordinary insulating paper, therefore, the insulation structure of low-voltage motors cannot meet the requirements of high-efficiency motors, and it is difficult to achieve the purpose of improving motor efficiency and reducing temperature rise

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