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直流散热风扇如何降低噪音?

之前有提到过散热风扇会产生一定的噪音,只要在合理的噪音范围内,是不会影响风扇正常使用的。但如果超出正常噪音了怎么办呢?
直流散热风扇如何降低噪音?
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直流散热风扇如何降低噪音?

之前有提到过散热风扇会产生一定的噪音,只要在合理的噪音范围内,是不会影响风扇正常使用的。但如果超出正常噪音了怎么办呢?
减少冷却风扇噪音的 4 种方法。

降噪方法(1):系统阻抗
机箱进风口与出风口之间的范围占整个系统阻抗的60%至80%。另外,风量越大,散热风扇的噪音就越大。系统阻抗越高,散热所需的风量就越大,因此,为了尽量降低噪音,必须尽量降低系统阻抗。

降噪方法(2):气流扰动
噪音是由气流路径上遇到障碍物引起的湍流产生的。因此,必须避免冷却风扇出现任何障碍物,特别是在关键的进风口和出风口区域,以降低噪音。

降噪方法(3):风扇尺寸
由于高速风扇比低速风扇噪音更大,因此应尽可能尝试使用低速风扇。在输送相同风量的情况下,大型低速风扇通常比小型高速风扇更安静。

降噪方法(4):提高温度
在一个系统中,冷却所需的风量与允许温升成反比。风扇允许温度稍微升高,就可以显著减少所需的风量。因此,如果对允许温升的限制稍微放宽,就可以减少所需的风量,噪音水平也可以降低。

DIVERSITY OF EXPLORATION

OUTDOOR SCENE

OUTDOOR SCENE

However, those with sealed components, including motors, controllers, and connectors, can also be operated outdoors. Performance IC forklifts tend to be utilized in heavy-duty applications, such as brick and lumber yards, where larger capacity and performance is required to move the heavy loads.
INFRASTRUCTURE SCENARIO

INFRASTRUCTURE SCENARIO

However, those with sealed components, including motors, controllers, and connectors, can also be operated outdoors. Performance IC forklifts tend to be utilized in heavy-duty applications, such as brick and lumber yards, where larger capacity and performance is required to move the heavy loads.
TRANSPORTATION SCENARIOS

TRANSPORTATION SCENARIOS

However, those with sealed components, including motors, controllers, and connectors, can also be operated outdoors. Performance IC forklifts tend to be utilized in heavy-duty applications, such as brick and lumber yards, where larger capacity and performance is required to move the heavy loads.
INDUSTRIAL SCENARIOS

INDUSTRIAL SCENARIOS

However, those with sealed components, including motors, controllers, and connectors, can also be operated outdoors. Performance IC forklifts tend to be utilized in heavy-duty applications, such as brick and lumber yards, where larger capacity and performance is required to move the heavy loads.
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