Miniature cooling fan manufacturers tell you: what are the technical indicators of the cooling fan?

The manufacturer of the cooling fan tells you: What are the technical specifications of the cooling fan? Next, let's explain by Juwang Electronics:

Air volume

Air volume refers to the total amount of air discharged or absorbed by the cooling fan per minute. If calculated in cubic feet, the air volume unit is CFM; If calculated in cubic meters, it is CMM. The commonly used air volume unit for cooling fans is CFM (approximately 0.028 cubic meters per minute). Air volume is an important indicator to measure the heat dissipation capacity of a cooling fan. Obviously, the larger the air volume, the higher the heat dissipation capacity of the cooling fan. This is because the heat capacity ratio of air is constant, and a larger air volume, that is, more air per unit time, can carry more heat away. Of course, under the same air volume, the heat dissipation effect is related to the flow of wind.

Wind pressure and wind pressure are two relative concepts. Generally speaking, when manufacturers consider cost savings, designing high airflow fans requires sacrificing some air pressure. If the fan can drive a lot of airflow, but the wind pressure is small, the wind cannot blow to the bottom of the radiator (which is why some fans have high speed, large air volume, but poor heat dissipation effect), on the contrary, high wind pressure often means low air volume, and there is not enough cold air to exchange heat with the radiator, which can also cause poor heat dissipation.

The manufacturer of the cooling fan tells you: What are the technical specifications of the cooling fan? Next, let's explain by Juwang Electronics:

Air volume

Air volume refers to the total amount of air discharged or absorbed by the cooling fan per minute. If calculated in cubic feet, the air volume unit is CFM; If calculated in cubic meters, it is CMM. The commonly used air volume unit for cooling fans is CFM (approximately 0.028 cubic meters per minute). Air volume is an important indicator to measure the heat dissipation capacity of a cooling fan. Obviously, the larger the air volume, the higher the heat dissipation capacity of the cooling fan. This is because the heat capacity ratio of air is constant, and a larger air volume, that is, more air per unit time, can carry more heat away. Of course, under the same air volume, the heat dissipation effect is related to the flow of wind.

Wind pressure and wind pressure are two relative concepts. Generally speaking, when manufacturers consider cost savings, designing high airflow fans requires sacrificing some air pressure. If the fan can drive a lot of airflow, but the wind pressure is small, the wind cannot blow to the bottom of the radiator (which is why some fans have high speed, large air volume, but poor heat dissipation effect), on the contrary, high wind pressure often means low air volume, and there is not enough cold air to exchange heat with the radiator, which can also cause poor heat dissipation.