Views: 0 Author: Site Editor Publish Time: 2022-06-03 Origin: Site
The main component of a mini fanis an AC motor, and its working principle is that the energized coil rotates under the force of a magnetic field, so that the mini fan blades rotate. The conversion formed of energy is that electrical energy is mainly converted into mechanical energy. At the same time, due to the resistance of the coil, it is inevitable that part of the electrical energy will be converted into heat energy. Generally, the motors of mini fans (using 220V AC) are capacitor split-phase single-phase motors. It has two windings: the main winding (running winding); the secondary winding (starting winding). The main winding is directly connected to the 220v power supply, and the secondary winding is connected to the 220v power supply after the capacitor in series.
Here is the content list:
●Working principle of mini fan
●Mini fan shape performance
●Precautions for Mini Fans
When the mini fan works (assuming that there is no heat transfer between the room and the outside world), the indoor temperature not only does not decrease but increases. Let's analyze the reasons for the temperature rise together: When the electric mini fan is working, because there is currently flowing through the coil of the electric mini fan, the wire has resistance, so it will inevitably generate heat and release heat outward, so the temperature will rise. But why do people feel cool? Because there is a lot of sweat on the body surface of the human body when the mini fan works, the indoor air will flow, so it can promote the rapid evaporation of sweat, combined with "evaporation needs to absorb a lot of heat", people will feel cool.
Check carefully whether the mini fan net cover and fan blades are obviously deformed. Rotating the fan blades should be brisk and flexible, and should not always stop at the same position. The starting performance is an important quality indicator of the motor fan. During the inspection, in the slow gear, when the rated voltage of the power supply is 85%, the motor fan should be able to start from a standstill and operate normally. The shorter the time required for a motor fan to start to normal operation, the better the starting performance of the motor fan.
Speed control performance: After power on, there should be no abnormal noise in the mechanical transmission part of the mini fan. When the mini fan is running at high, medium, and low speeds, the motor and fan blades should be stable, with low vibration and low noise. After the motor fan is powered on, if there is a feeling of numbness when touched by your hand, use a test pen to test. The test pen also has a luminous display, which can determine that the shell is leaking. Continuous operation of the motor and mini fan After the mini fan has been running continuously for 2 hours, if the surface of the machine headshell is hot, it means that the temperature is too high and cannot be used. Under normal circumstances, the surface temperature of the machine headshell should be below 50°C, and there should be no hot feeling.
In order to better serve the majority of users, Yuexun Electric Appliance Co., Ltd has developed a variety of different mini fans and conducted a lot of tests before leaving the factory to ensure the quality. If you need different mini fans, you can consider using our cost-effective products.