Detailed explanation of the core structure and working principle of electric fans
Author：策划人 Source：本站 Time：8/29/2025 10:39:25 PM
Fan core components
The structure of a fan can be summarized into five core components: fan blades, fan cover, fan head, base, and control part. Among them, the fan blades are composed of blades, blade frames, and blade covers. During rotation, they apply pressure to the air through specific device angles and arcs, generating strong airflow. This component has a crucial impact on the performance of the fan, including wind speed, air volume, power consumption, as well as noise and vibration control. In addition, the fan cover is also an indispensable part of the fan structure. It is usually made of a ray shaped structure using welding technology, while the mesh cover is mostly designed with 72 rays and treated with bright chrome or zinc plating. Some also use electrostatic spraying technology to ensure the stability, glossiness, and aesthetics of the mesh cover.
Fan cover and manufacturing process
The fan cover adopts a welded radial structure, usually treated with chrome plating or zinc plating to ensure stability and aesthetics. The mesh cover is designed with 72 rays.
Base and Control Design
Connection between Column and Base
There are two common ways to design the column and base of a table fan: firstly, the column and base are independent components that are connected as a whole through screws; Secondly, the column is directly connected to the base as a whole. Both designs use aluminum alloy or plastic materials to ensure structural stability. The base is equipped with decorative panels and control switches, while the chassis or base is connected to the ground through anchor screws, ensuring stability and convenience of use.
Control Circuit and Energy Management
The rotor is usually equipped with a wound motor, which is a type of asynchronous motor. Asynchronous motors can be divided into two types based on the different rotor windings: wound type and squirrel cage type. The control circuit plays a crucial role in protecting resistors and limiting current in the fan. At the same time, it also works in conjunction with the secondary winding to achieve precise adjustment of wind speed.
S. Jijing covers key components such as circuit boards, silicon steel sheets (used as stator magnets with winding coils attached to generate magnetic level propulsion switching), upper and lower covers of silicon steel sheets, and fixed insulators. These components work together to achieve functions such as energy consumption control, signal input and output, and magnetic level switching for the table fan.
