For some products, the cooling fan is required to be waterproof. For example, the cooling fan is required to reach IP67. In fact, this is about two protection requirements. The first 6 refers to the dust-proof level
After using the 4010 cooling fan for a period of time, it is found that the noise is obviously greater than before. Is this due to the quality problem of the fan itself or other reasons?
The power supply mode is different. There are two kinds of cooling fans: DC cooling fan and AC cooling fan. At present, DC cooling fan is widely used. The main advantages are as follows:
Industrial motherboard cooling fan is mainly bracket type, no frame protection, fan blade counter clockwise rotation design, vertical type, the wind yearns to blow around, but also blow down. An important problem to be noted is that the single fan should not fall to the ground
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