Aluminum radiators are currently used very frequently in some mechanical equipment, which gives people the impression that the installation of aluminum profile radiators is very simple, but it is not. Today, I will briefly introduce the installation precautions of aluminum profile radiators, hoping to be helpful to everyone.

When installing aluminum profile radiators, the contact area between power devices and radiators should be maximized to reduce contact thermal resistance and improve heat transfer efficiency.

Try to reduce the contact thermal resistance as much as possible. When installing an aluminum heat sink, adding a thin layer of thermal conductive silicone grease between the power device and the heat sink can reduce the thermal resistance by 25-30%.

During installation, thermal conductivity or insulation gaskets need to be placed between the device and the aluminum profile heat sink. Low thermal resistance materials such as copper foil, aluminum foil, or thin mica, polyester film, etc. are suitable for the design of the aluminum heat sink.

When installing a device, its mounting hole (or group hole) is placed at the center (L/2) of the radiator base surface. When installing two or more devices, the installation holes (or group holes) are evenly distributed (L/2n) above the centerline of the base surface of the aluminum profile radiator.

When tightening the device, it is necessary to ensure that the screw torque is consistent.

After the installation of aluminum profile heat sinks and power devices, it is not advisable to perform mechanical aluminum heat sink processing or shaping on the power devices and heat sinks, as this will generate stress and increase contact thermal resistance.

Single sided ribbed aluminum profile heat sink is suitable for natural air cooling outside the equipment (such as installed outside the chassis), which is conducive to ventilation and heat dissipation of power devices while reducing internal temperature rise.