Fan motor stator and manufacturing method

Abstract

The invention provides a fan motor stator and a manufacturing method. The stator is mainly composed of a stator core, an upper framework, a lower framework, a main winding and three auxiliary windings; eight sector wiring ducts, eight square iron yokes 112 and eight pole shoes are evenly arranged on the stator; the upper and lower frameworks matched with the stator core in shape are connected in an abutting embedment manner to cover the stator core; the main winding is connected in series and wound around the odd-number iron yokes of the stator core and the first, second and third auxiliary windings are orderly connected in series and wound around the even-number iron yokes of the stator core by use of an automatic winding machine and the frameworks; tab leads are wound around and welded on the corresponding binding posts of the upper framework, respectively. The fan motor stator has the advantages that wires are directly around the iron yoke frameworks by use of the automatic winding machine and the tab leads are welded, and therefore, the manufacturing process of the stator is simple, the quality of the product is good, more than 25% of varnished wires and metal materials can be saved, and as a result, the production cost is greatly reduced and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of AC squirrel-cage motors, in particular to a method for manufacturing a stator of a fan motor. Background technique [0002] The fan motor generally adopts an AC squirrel-cage motor. There are 16 slots in the stator 1 of an existing fan motor, the slots are elliptical, and the cross-sectional area is small, see figure 1 shown. The stator structure and manufacturing process of this fan motor are as follows: First, the main winding coil 2 and the auxiliary winding coil 3 are wound, and then the insulating slot paper 4 is inserted into the stator slot, and the wound main and auxiliary coils 2 and 3 are pressed Manually fall into the wire slot in order, separate the main winding 2 and the auxiliary winding 3 with insulating paper (green shell paper) 5, use a multimeter to measure the wire end of the gear position, connect the lead wire of the corresponding gear position, weld and put it on For the insulatin...

AI Technical Summary

Problems solved by technology

The above-mentioned stator structure and manufacturing method have the following disadvantages: ①Due to the use of manual drop-off, the upper and lower parts of the main and auxiliary windings must be higher than the thickness of the stator core by a certain distance, for example, 1-2cm; , The weight of the enameled wire in the higher part of the auxiliary winding accounts for about 25-30% of the total weight of the enameled wire of the winding

Therefore, the manual drop-off consumes more enameled wires and the production cost is high

②Because the stator has 16 wire slots, the number of windings is large and difficult, and it is easy to scratch or break the enameled wire. The number of insulating slot papers to be placed is large and the positions are difficult to be even, resulting in low production efficiency and unstable quality.

③There are many windings and more taps. It is necessary to use a multimeter to find the matching wire ends. It is very complicated to fix and shape the paper and wiring ends

In short, the manufacturing process of the stator structure box of the fan motor mentioned above is complicated, requires a lot of labor, consumes a lot of copper materials, the product quality is unstable, and the production efficiency is low.

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