Magnet wire used in motor coil windings

Abstract

The invention relates to an electromagnetic wire used for a motor coil winding. The electromagnetic wire comprises a conductor and an insulating layer. The conductor is composed of a first flat conductor body and a second flat conductor body, and the first flat conductor body and the second flat conductor body respectively comprise an upper side face, a lower side face, a left side face and a right side face, wherein the width of each upper side face and each lower side face is twice or more than twice of the width of each lower side face and each right side face. The right side face of the first flat conductor body is in right angle transition with the upper side face of the first flat conductor body and the lower side face of the first flat conductor body, the left side face of the second flat conductor body is in right angle transition with the upper side face of the second flat conductor body and the lower side face of the second flat conductor body, the right side face of the first flat conductor body is tightly attached to the left side face of the second flat conductor body, the left side face of the first flat conductor body is in arc transition with the upper side face of the first flat conductor body and the lower side face of the first flat conductor body, and the right side face of the second flat conductor body is in arc transition with the upper side face of the second flat conductor body and the lower side face of the second flat conductor body. The electromagnetic wire used for the motor coil winding has the advantages of being beneficial to thinning the insulating layer of a motor, improving the utilization rate of a groove of the motor, improving the heat conductivity of the motor, reducing the size of the motor under the same temperature rise, saving cost, reducing the use level of materials, improving the technology adaptability, and keeping the insulating performance unchanged.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic wires, and in particular relates to an electromagnetic wire used in motor coil windings. Background technique [0002] The thinning of motor insulation has always been a research topic for domestic motor manufacturers. The benefits of thinning insulation are: (1) Improve the utilization rate of the motor slot; (2) Improve the thermal conductivity of the motor; (3) Reduce the temperature rise of the winding under the same output conditions ; (4) Reduce the size of the motor under the same temperature rise; (5) Reduce material consumption and save costs. As the main insulation material of the motor, the magnet wire is of decisive significance to the thinning of the insulation of the magnet wire for the thinning of the whole insulation of the motor. [0003] About improving the coil winding process of special wire gauge: For special wire gauge: the narrow side size is greater than or equal t...

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Problems solved by technology

[0004] In the prior art, for example, the utility model patent No. 98236170.X is an electromagnetic wire for electromechanical products, which is composed of 4 to 12 flat conductors juxtaposed by thin film And cable paper, telephone paper or non-woven fabric wrapping and composite wrapping electromagnetic wire, the electromagnetic wire is soft and easy to wind and form compared with the paper-wrapped wire of the same cross-sectional area, and is convenient for tapping and transposition. However, it has been found in practice that the above-mentioned The insulation layer of the magnet wire is still thick, and the insulation performance is poor

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