1. Varieties: At present, there are various types of ceiling fans, desk fans, floor fans, luck fans, ceiling fans, wall fans, and micro-ceiling fans derived from products, office fans, sofa fans, multi-purpose fans and so on. Each fan has different specifications, and consumers should decide which fan to buy according to the use, environment and hobby.
2. Function: The function selection is mainly concentrated on the desktop and floor fans. These two types of electric fans are generally divided into two types: standard popular type and electronic luxury type. The former is characterized by simple structure, convenient operation and low price, and generally only has two functions of speed regulation and commutation; the latter is characterized by complex and changeable functions and luxurious and exquisite shapes. Consumers can decide on the basis of practicability or practicality, decoration and luxury.
3. Quality: The baking paint and electroplating of high-quality electric fans are bright and smooth, without bubbles or scratches. There is no loosening of each screw. The rotary shaft and the switch have clear pronunciation and accurate positioning during operation, and the touch switch command is correct and reliable. When the fan blade is turned, the fan blade rotates smoothly and easily without touching any parts, and the blade gradually stops naturally when it stops. When pushing and pulling the fan blade in the axial direction, the sloshing amount should not exceed 0.5mm, and the fan head depression angle range should be 20° and 15°. Within this range, the fan head should be able to be balanced and there is no welding phenomenon at the welding part. When energized, start at the lowest gear at the position of the swing head, the fan quickly reaches the normal speed, especially at low voltage at night; when the gear is changed, the air volume changes significantly, and there is no obvious noise at each gear; At the time of head, for fans below 300mm, no less than 60°, fans more than 300mm, no less than 80°, no less than 4 swings per minute, no less than 5 swivel blades, no obvious hot feeling after 30 minutes of work. If there are remote control, clock control, timing and other functions, they should be accurate.
4. Brand: Selecting high-quality brand-name products actually lays the foundation for quality assurance. This is because high-quality brand-name products, large production batches, fast product replacement, reasonable structure design, sophisticated processing technology, strict quality control, and good after-sales service.
