Type and classification of cooling fans

2. According to the working current mode, it can be divided into DC FAN and AC FAN. Refrigerator commonly used DC and Ac Fans;

3. According to the use of the fan: POWER FAN, chassis FAN, audio FAN, refrigerator FAN, Car Fan, DESK TOP FAN, NOTEBOOK FAN, VGA FAN, GPU FAN, SERVICE FAN, PDA FAN, LCD FAN... ;

The DC fan itself is more detailed:

According to the working voltage: DC 5V, 12V, 36V, 48V...... ;

Divided by wire or function: 2PIN, 3PIN (FG), 4PIN (FG or RD PWM)... ;

According to the size of the outer frame: 25MM, 30MM, 40MM, 50MM, 56MM, 70MM...... ;

According to the circuit system, bearing system, core structure can be further subdivided;

Fan polarity and function classification description:

Divided by wire: 2PIN, 3PIN, 4PIN

Divided by function: ordinary fan (2PIN), three-wire fan (FG OR RD), four-wire fan (FG & PWM Or RD &PWM), temperature control fan, etc.

Fan frame size category description:

According to the length, width and height of the fan (L * W * H) : such as 40*40*10 mm, 74*60*10.5 mm