In the cold winter, the warmer fan motor is a kind of electric heater. It achieves the heating effect by blowing hot air. It is small and easy to carry, so you can carry it to any place you need to increase the room temperature. And many people want to buy a warmer fan motor and use it in the bathroom because those who have used the Yuba know that the heating capacity of the Yuba is very limited and slow. So our family has given up Yuba a long time ago and used a heater instead. As the core component of the warmer fan motor, the shaded pole motor is the key to the durability of your warmer fan motor.
Here is the content list:
What is the working principle of a warmer fan motor?
What types of failures will occur in the warmer fan motor?
How to choose warmer fan motors of suitable model and good quality?
What is the working principle of a warmer fan motor?
Most of the warmer fan motor motors are shaded pole motors. A shaded pole motor is a single-phase induction AC motor. The secondary winding composed of a copper ring is called a shaded pole coil. In order to provide a magnetic field to the rotor, the current in this coil delays the magnetic flux of that part of the pole. The direction of rotation reaches the shield ring from the side without the cover.
What types of failures will occur in the warmer fan motor?
1. Insulating skeleton or insulating material
The skeleton generally adopts the injection molding method, and the quality of the warmer fan motor, the control of the injection molding process, and the cleanliness of the plastic particles will all cause its defects. The defects of the framework or insulating materials are as follows:
(1) The skeleton is short of materials;
(2) Damaged;
(3) Worn out by the short-circuit ring;
2. Hanging the wire during the winding process of the wire package
When the warmer fan motoris wound, on the one hand, because the stator and the frame do not fit properly, on the other hand, the winding needle may not be adjusted to the upper part of the frame. There is a certain arc when winding the needle and the wire, which may cause enameled wire If the wire package is not embedded in the design track, the wire will appear hanging, that is, the enameled wire is not wound on the plastic frame, and there may be a circle or several loops on the inner or outer groove wall of the frame groove or from the frame where the frame and the silicon steel stator are matched.
How to choose warmer fan motors of suitable model and good quality?
1. Rotate the shaft of the motor by hand, the motor should rotate freely;
2. Use a multimeter to measure the windings of the warmer fan motor, there should be several to dozens of ohms, and the shaded pole motor is not connected;
3. The insulation resistance between the winding of the warmer fan motor and the metal shell is not less than 0.22MΩ;
4. There is no noise during power-on rotation, indicating that the starting winding is intact.
Meet the above conditions, the shaded pole motor is good.
It is the responsibility of each manufacturer to produce a warmer fan motor that meets the standards, so as to ensure the safety of the electricity supply. Guangzhou Yuexun Electric Appliance Co., Ltd. conducts many tests on durable shaded pole motors before they leave the factory, and the quality qualification rate is guaranteed. If you are in the warmer fan motor business, you can consider our cost-effective products.