What Is a Shaded-Pole Motor?

Shaded-pole motors, also called Shaded Pole Motors, are a type of single-phase AC motors, and usually use caged cast aluminum rotors. It is divided into salient-pole shaded-pole motors and hidden-pole shaded-pole motors according to the different shapes of the stator.

Shaded pole motor is mainly composed of

1. Reasonable structural design, flexible lead-out direction, shaded pole motor

I. Insulation skeleton or insulation material

The skeleton is generally injection-molded. The quality of the mold, the control of the injection process, and the cleanliness of the plastic particles will cause its deficiency.

Shaded pole motor

trap. There are the following types of defects in the skeleton or insulating material:

(1) skeleton is out of material;

(2) damage;

(3) Worn by short-circuit ring;

(4) the framework contains impurities;

(5) There are dirt and other dirt on the surface of the framework;

(6) The insulation sheet is pierced.

Second, the wire wrapping process hanging line

When winding, on the one hand, the stator and the skeleton do not fit together. On the other hand, the winding needle of the winding machine may not be completely adjusted in the upper and middle part of the skeleton. There is a certain arc when the needle is wound with the winding. When the track is embedded in the wire package, the hanging wire appears, that is, the enameled wire is not wound on the plastic skeleton, and there are one or more loops that are sleeved on the inside or outside groove wall of the skeleton groove or slip from the gap where the skeleton matches the silicon steel sheet stator The winding is directly wound on the stator. Such failures occur most frequently. Other adverse phenomena include:

(1) The first loop of the wire at the beginning of the winding;

(2) There are burrs on the skeleton, and the thread is stuck and cannot be embedded;

(3) A waste line falls into the line package during the production of employees;

(4) One side of the wire package is full or out.

Third, the hanging line caused by the wiring process

(1) The connector between each wire package has not been packed into the skeleton after welding, and the terminal is too close to the stator and the end cover;

(2) After the last circle of enameled wire is loose, the skeleton is not found, and it is directly pulled out of the skeleton from the stator;

(3) floating line at the lead-out line;

(4) The thermal protector squeezes the wire. The general structure is that the enameled wire is wound around the copper core of the thermal protector lead and the sleeve is used for insulation protection. ^[2]