Industry trends| 2022-11-04|毅荣川电子
Talking about electronic componentsCooling fanIt is believed that everyone has learned a little from the manufacturer of soft text and cooling fan. You can also refer to the main parameters of motor selection such as rolling bearing and exhaust volume. What factors will harm the cooling characteristics of cooling fan?
Bearing: The most widely used bearings for cooling fans on the market are oil-bearing, hydraulic bearing and double-ball bearing. The oil-bearing is generally low in price and low in early rotation noise, and some manufacturers are also selected to add Teflon to the oil-bearing, which makes the oil-bearing also have the reputation of ball bearing. Finally, the manufacturer sold this kind of rolling bearing at a high price. Ball bearing is more noisy and expensive than oil-bearing cooling fan, but its advantages are higher reliability and longer service life.
Heat dissipation effect: In fact, it is an incorrect idea to think that the advantages of large fans depend on the length of fan blades and the total heat dissipation area, so the total air volume is large. However, if the design scheme is not good, the cooling capacity of the large fan will be inferior to that of the small fan. Finally, look at the blades of the cooling fan. If the other parts of the same fan are consistent, only the blades are changed from five to seven, and the change of the exhaust volume will not be easy to improve. However, in terms of fan speed ratio, the speed ratio of seven fan blades will be less than five blades (under the same natural ventilation rate). If seven fan blades are used for cooling fan, the damage and oil leakage of rolling bearing are less, and the service life of electric fan is longer.
If the speed ratio of five blades and seven fan blades is the same, the exhaust volume of seven fan blades will be greater. The higher the speed ratio of the cooling fan, the shorter the relative service life and the greater the noise. In addition, the thicker the fan blade of the cooling fan, the greater the blade tilt angle and the greater the wind pressure. The inlet angle of the cooling fan blades (45 in number) is one of the key factors determining the cooling fan exhaust volume.
Thank you for your reading, the manufacturing and technological innovation of cooling fans. We will continue to introduce the latest news technology in the cooling fan manufacturing industry. The latest trend will be shown in front of you at the first time. More technology will focus on Shenzhen Yirongchuan.