Armature cup performance analysis method for hollow cup motor windings

Abstract

The invention provides an armature cup performance analysis method for hollow cup motor windings. The terminal resistance of a winding armature cup, the number of winding turns, the dimension of the end portion of the winding armature cup and the thickness of the winding armature cup are adopted as objects. According to the method, firstly, the cutting lengths of the effective magnetic lines of winding armature cups wound according to different winding methods are compared and analyzed. The larger the cutting length of an effective magnetic line, the better the performance of a winding armature cup. Secondly, on the premise that the cutting lengths of the effective magnetic lines and the numbers of winding turns are the same, the wire lengths of winding coils are compared and analyzed. When the wire length of a winding coil is shorter, the internal resistance is smaller. Meanwhile, the copper loss is reduced, so that the performance of the winding armature cup is better. Thirdly, on the premise that the cutting lengths of the effective magnetic lines and the numbers of winding turns are the same, the dimensions of the end portions of winding armature cups are compared and analyzed. When the dimension of the end portion of the winding armature cup is thinned, the air gap gets smaller. In this way, the performance of the winding armature cup is better. Based on the above method, the difference among windings can be preliminarily estimated before the winding selection process.

Description

technical field [0001] The invention relates to the technical field of motor performance testing, in particular to a method for analyzing the performance of an armature cup of a coreless motor winding. Background technique [0002] Compared with the cogging motor under the same conditions, the hollow cup motor has the characteristics of high output power density, small electrical time constant, small size, light weight, stable operation, and fast response. It is more and more widely used. However, the manufacturing process of hollow cup motors is complicated, there are many tooling molds, and many special processes, which bring many difficulties and restrictions to mass production, especially the motor winding armature cup directly affects the output performance of the motor and the parameters describing the electromechanical energy conversion of the motor ( Torque constant and speed constant), in actual use, the appropriate winding can be selected according to the applicati...

AI Technical Summary

Problems solved by technology

At present, there are many types of armature cups for coreless motor windings, including disc windings, straight windings, oblique windings, stacked windings, etc., and the winding technology of each winding is different, and the performance is also different. This difference requires the winding After the armature cup is wound, measure the result with a measuring tool, or apply it to the motor to measure the output characteristics of the motor, and then the difference between each winding can be obtained, which is time-consuming, labor-intensive and labor-intensive.

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