Winding stator used for air-conditioning outdoor fan motor and manufacturing method thereof

Abstract

The present invention relates to the motor technology field, in particular to a winding stator used for an air-conditioning outdoor fan motor and a manufacturing method thereof. The winding stator comprises a stator punching and windings, the stator punching is characterized in that a plurality of punching blocks are connected orderly and mutually to form a straight bar structure, and the inner sides of the punching blocks protrude the groove-shaped teeth parts integrally and inwards. The insulating frames are fixed on the front and back end faces of the stator punching respectively, the wires of the windings are wound on the groove-shaped teeth parts of the punching blocks orderly to bend the punching blocks inwards orderly along the connection positions, so that the stator punching forms a circular structure, and the two ends of the stator punching are welded and fixed mutually. According to the present invention, a bar-shaped stator centralized winding structure is adopted, the end part loss of the windings and the copper consumption are little, the manufacturing cost is reduced directly, the end part heights of the windings of the motor can be reduced effectively, the end part leakage reactance, the motor loss and the technology difficulty are reduced, a production technology is simplified, the automatic production is easy to realize, and the production efficiency is improved.

Description

Technical field: [0001] The invention relates to the technical field of motors, in particular to a winding stator for an air-conditioning outdoor fan motor and a manufacturing method thereof. Background technique: [0002] At present, air-conditioning motors are widely used in the market, especially split-type air conditioners with less than 2 hp, and the competition is fierce. At present, the concentric winding stator of the air-conditioning outdoor fan motor is limited by the winding structure, resulting in a large end size and ineffective motor windings. There are too many parts, and the leakage reactance at the end is also large, resulting in high design cost. [0003] At present, the stamping sheets used for motors used in outdoor fans of air conditioners below 2 hp are directly punched into circular structures. The outer diameter of the stator punching sheet is Φ94-95mm, and the inner diameter is Φ54-64mm. The stator core generally has 12 slots, and the rotor generally...

AI Technical Summary

Problems solved by technology

[0004] 1. Limited by the slot shape of the motor sheet, only concentrated windings can be used, with larger ends and higher costs;

[0005] 2. Because the end of the concentric winding is large, the leakage reactance at the end is also large, the heat generated by the motor is large, and the efficiency is low

[0006] 3. The concentric winding needs to be wound first and then embedded. The manufacturing process is complicated, it is not easy to realize automatic production, and the labor cost is high.

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