Block stator, manufacturing method of block stator, motor with block stator and household appliance

Abstract

A segment stator and manufacturing method thereof, an electric machine and a household electrical appliance with same. The manufacturing method comprises the following steps: manufacturing a plurality of stator segment cores (1); manufacturing a plurality of insulated winding frames (2); installing the plurality of winding frames (2) onto the plurality of stator segment cores (1), respectively; winding main coils (5a) around the winding frames (2) on some of the stator segment cores (1) to form a plurality of main windings (A), wherein the main coils (5a) of the plurality of main windings (A) are not connected to each other; winding continuously a secondary coil (5b) around the winding frames (2) on the other stator segment cores (1) to form a plurality of secondary windings (B) connected by the secondary coil; arranging and connecting the secondary windings (B) and the main windings (A) alternately to form a ring shape; and connecting the plurality of stator segment cores (1) in turn. The manufacturing method has a high winding speed.

Description

technical field [0001] The invention relates to the field of motors used in household appliances, and in particular to a segmented stator of the motor and a manufacturing method thereof, a motor with the segmented stator, and a household appliance with the motor. Background technique [0002] Single-phase squirrel-cage asynchronous motors are the most widely used motors in household appliances. Traditionally, the stator winding of this kind of motor is composed of two sets of short-distance distributed windings, the main and the auxiliary, and the stator and rotor cores are formed by stacking integral punched sheets. This traditional structure has problems such as low efficiency, complicated process, many working hours, many materials used, low yield, poor quality, and difficulty in reducing costs. The reasons are as follows: [0003] (1) The length-to-diameter ratio of single-phase squirrel-cage motors is usually not large. When distributed windings are used, the ends are ...

AI Technical Summary

Problems solved by technology

This traditional structure has problems such as low efficiency, complicated process, many working hours, many materials used, low yield, poor quality, and difficulty in reducing costs. The reasons are as follows:

[0003] (1) The length-to-diameter ratio of single-phase squirrel-cage motors is usually not large. When distributed windings are used, the ends are very long, the utilization rate of copper is low, the copper consumption is large, and the efficiency is low;

[0004] (2) The distributed winding process is complicated, the winding efficiency is low, and the labor cost is high;

[0005] (3) The ends of the distributed windings overlap, which is easy to cause damage during assembly, and the first pass rate of the motor is low and the quality is not high;

[0006] (4) The integral stamping of the stator sheet produces a large amount of leftover material, and the utilization factor of the silicon steel sheet is low

However, if the stator block technology is used, the number of thread ends will increase, and it is easy to break the wire when the block stator is combined, making it difficult to manufacture.

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