Electromagnetic wire for motor coil winding

Abstract

The invention relates to an electromagnetic wire 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, the first flat conductor body and the second flat conductor body are respectively provided with an upper lateral face, a lower lateral face, a left lateral face and a right later face, wherein the widths of the upper lateral faces and the widths of the lower lateral faces are 3-8 times larger than the widths of the left lateral faces and the widths of the right lateral faces, the lower lateral face of the first flat conductor body is in right-angle transition with the left lateral face and the right lateral face of the first flat conductor body, the upper lateral face of the second flat conductor body is in right-angle transition with the left lateral face and the right lateral face of the second flat conductor body, the lower lateral face of the first flat conductor body is in close fit with the upper lateral face of the second flat conductor body, the upper lateral face of the first flat conductor body is in arc-shaped transition with the left lateral face and the right lateral face of the first flat conductor body, and the lower lateral face of the second flat conductor body is in arc-shaped transition with the left lateral face and the right lateral face of the second flat conductor body. The electromagnetic wire is beneficial to thinning motor insulation and improving the using rate of a motor groove, improves the motor thermal conductivity, reduces the motor size under the condition that the temperature rise is same, saves the cost, reduces using materials, improves the technology applicability and keeps 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 for 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 to 2m...

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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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