Effective alternating-current motor stator winding preparation method

Abstract

The invention discloses an effective alternating-current motor stator winding preparation method. The effective alternating-current motor stator winding preparation method includes wire wrapping, wiring and wire inserting. The wire wrapping technique includes that each phase U, V or W has six coils U1, U2, U3, U4, V1, V2, V3, V4, W1, W2, W3 and W4, wherein 6 coils of each phase wrap continuously, the wrapping directions of the wrapped coils are consistent, and there is no joint between the six coils of each phase; each of the W1, W3, V2, V4, U2 and U4 comprises two large coils, the span of the large coil is 1 to 9 tanks, the W2, W4, V1, V3, U1 and U3 are small coils, and the span is 1 to 8 tanks. The wiring is performed after the wire wrapping technique and before the wire inserting technique, and the wiring enables the wrapping directions of the large coils of each phase to be opposite to the winding direction of the small coil. The effective alternating-current motor stator winding preparation method is good in coil winding technique, enables the cost to be saved and enables the motor winding reliability to be improved.

Description

technical field [0001] The invention relates to a method for preparing a high-efficiency AC motor stator winding, and belongs to the technical field of motor stator manufacturing. Background technique [0002] The three-phase stator winding of a three-phase asynchronous motor, after being fed with three-phase symmetrical alternating current, will generate a rotating magnetic field, which cuts the rotor winding, thereby generating an induced current in the rotor winding, and the current-carrying rotor conductor acts on the rotating magnetic field of the stator The electromagnetic force will be generated, thereby forming an electromagnetic torque on the motor shaft, driving the motor to rotate, and the direction of rotation of the motor is the same as that of the rotating magnetic field. [0003] The stator winding is an important part of the motor, and its welding quality and resistance directly determine the reliability and energy efficiency of the motor. [0004] In the pr...

AI Technical Summary

Problems solved by technology

However, the above method has the following defects: first, it needs to be cut once after winding a coil, and the winding efficiency is low; second, each coil of each phase needs to be welded, which increases the cost; third, there are Welding point, unbalanced resistance value of three-phase windings, easy to form circulating current between three-phase windings

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