Motor winding and winding method

Abstract

The invention provides a winding method of a motor winding and the motor winding. By using the winding method and the motor winding, a technology is simple, production efficiency is high, cost is lowand the method and the winding can adapt to automation production. According to the motor winding made through using the method, a number of welding spots is less, weight weak points are reduced and reliability is high; and because a lot of welding is not needed, production efficiency is high and cost is low. In the winding method, one conductor is adopted and the following processes are repeatedtill that one conductor completes all or partial winding of one phase of winding. When one conductor completes the partial winding of the winding, leading-out terminals of partial windings are mutually connected so as to form one phase of winding. The repeated processes comprises that a free end of the conductor is inserted into a wire groove from a head end of one wire groove and is pulled out ofa tail end of the wire groove, and then the conductor carries out back bending; and the free end of the conductor is inserted into a tail end of the other wire groove and is pulled out of a head endof the other wire groove, and then the conductor carries out back bending. The motor winding comprises three phases of windings, and each phase of winding passes through one conductor of the wire groove or several connected conductors.

Description

Technical field [0001] The present invention relates to motor windings, in particular to a stator winding and its winding method. Background technique [0002] In today’s motor technology field, there is a large gap between the outer circles when the circular conductors that make up the windings are arranged with each other. Compared with the circular conductor, the flat conductor occupies a smaller space in the stator. Therefore, the flat conductor The windings composed of conductors (hereinafter referred to as flat wire windings) are gradually replacing the windings composed of round conductors (hereinafter referred to as round wire windings) and become the development direction of the current motor field. [0003] However, since the bending strength of the flat wire is much higher than the bending strength of the conductor bundle composed of multiple round conductors, it cannot be easily wound into the required shape like a round wire winding, and it cannot be like a round wire ...

AI Technical Summary

Problems solved by technology

The process of this method is extremely complicated, and due to the existence of a large number of solder joints, the product quality is difficult to control, and the production cost is high and difficult.

Other existing technologies are mainly to pre-press the conductors and design the stator into a multi-lobe structure to form a stator. The structure is complex, and the multi-lobe stator is not conducive to the uniform distribution of the magnetic field and the conduction of the magnetic field.

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