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Many manufacturers are choosingDC fan manufacturerWe will first consider the environment we use and the functions we need, and then find fans that meet our needs according to these standards. What does RPM stand for? Let's understand the importance of RPM.

One way to judge whether the DC fan is properly designed and whether the motor can operate at the lowest temperature rise is to calculate the ratio of fan speed (RPM) to fan efficiency power. The general industry standard is that if the speed is increased by 10%, the power consumption needs to be increased by 30%. For a well-designed DC fan, the power consumption needs to be increased by no more than 30% for each 10% increase in speed, otherwise the motor will enter the saturated drive state. This saturated driving state will lead to the early end of the fan life. In order to maintain the RPM/W standard, the size of silicon steel sheet must be increased or the PQ value must be reduced. These will increase the product cost, otherwise the temperature rise of the motor will be too high. It will greatly reduce the service life of the product.

The above can reflect the impact of good DC fan performance on the power consumption cost, and also reflect the impact of the minimum operating temperature of the motor (in direct proportion to the input power) on the fan, while the operating temperature of the motor is inversely proportional to the product life. In particular, according to industry standards, every 10 ° C increase in the operating temperature of the motor will reduce the product life by 1/2.

The above explains why RPM standard is very important for DC fans. We can customize it according to customers' special requirements. If you want to know more about DC fans, you can pay attention to Shenzhen Yirongchuan.