Communication equipment is developing rapidly in this era, and many new things related to it emerge in an endless stream. With the emergence of new products and technologies such as mobile communications, Internet of Things, artificial intelligence, and power batteries, as well as their high heat flux density, high power, and ultra-thin characteristics, this also puts forward higher requirements for heat conduction and heat dissipation. . For its usage scenarios, it is particularly important to choose a quiet ventilation fan. So based on these requirements, how do we choose a low-noise cooling fan? 

First of all, we must understand the noise. The noise is caused by the vibration of the fan when it is running. Excessive vibration will affect the stability of 5G terminal equipment. Not only that, but it will also indirectly interfere with device communication, especially when small 5G terminal devices are used indoors, the noise impact is even more serious. The cooling fan with good quiet effect is even more important. While ensuring the cooling effect, choose a fan with low noise as much as possible.

When designing the cooling fan, try to choose the static pressure impeller design. At the same speed, the cooling fan designed with static pressure impeller has a larger air volume and lower noise.

The material of the silent fan is to use PBT frame and fan blades as much as possible, with smooth surface, wear resistance, brittle resistance and good toughness. The bearing system of the fan adopts ball bearings, and the noise level is stable. Unlike oil bearing exhaust fans, the longer the use time, the louder the noise, and the service life is not as good as the ball bearing exhaust fans.

In addition, when adapting to a more intelligent cooling fan with speed regulation, whether it is a communication device or other smart devices, there are no-load and load cycles. The speed-regulation fan can reduce the speed when it is no-load, and the noise value will also be greatly reduced.

If you happen to be looking for high quality cooling fan manufacturers, then we are a good choice. Guangdong Chungfo Electronic Technology Co., Ltd. focuses on the cooling needs of equipment in various industries, specializing in the research and development and supply of cooling fans such as DC cooling fans, AC cooling fans and DC blowers.We can provide professional customization of cooling fans according to customer needs.

As cars become more and more common in life, cooling fans are also widely used in different cars. These automotive cooling fans need to be maintained after a period of time, which is conducive to long-term use and prolong the service life of the fans. The next content is to introduce some car cooling fan maintenance methods.

1. First of all, open the cooling fan shell, then open the cooling fan, and then turn off the power supply. Blow with an air gun at 3 cm away from the cooling fan. After blowing the dust off the surface, wipe the remaining dirt above the fan blades with industrial alcohol. From the front of the device to the back, it needs to be cleaned and then rotated repeatedly until it is clean.

2. There are many factors affecting the wind speed of the automobile cooling fan, among which the most important factor is the bearing of the cooling fan.

Ball bearings: Long-term oxidation and accumulation of dirt and dust of the bearings of ball bearing exhaust fans will increase the friction resistance of the bearings and gradually reduce the fan speed.

Oil-bearing: With the longer the use time of the cooling fan of oil-bearing, the oil in the bearing gradually decreases, resulting in the speed of the cooling fan becoming slower.

The bearings of the cooling fans rotate repeatedly when they are used, which will shorten the life of the fans as well as produce wear. So we need to maintain the bearings of the automobile cooling fan in different ways according to the characteristics of different bearings.

3. The intake network port of the automobile cooling fan should be kept clean to prevent airflow obstruction. The intake network port can be cleaned with a soft brush or compressed air.

Guangdong Chungfo Electronic Technology Co., Ltd. focuses on the cooling needs of equipment in various industries,we are a professional cooling fan manufacturer.We can provide professional customization of cooling fans according to customer needs.if you have a cooling fan needs, please feel free to contact us.