1. Matters needing attention during installation of aluminum radiator
When installing the aluminum radiator, the contact area between the power device and the radiator should be maximized to reduce the contact thermal resistance and improve the heat transfer effect. Try to reduce the contact thermal resistance as much as possible. Add a thin thermal grease between the power device and the radiator during installation, which can reduce the thermal resistance by 25-30%. During installation, a thermal or insulating gasket is required between the device and the aluminum radiator. Low thermal resistance materials such as copper foil, aluminum foil or thin mica, polyester film, etc. are very suitable.
2. Precautions for installing power devices
When installing a device, its mounting hole (or group hole) is placed at the center (L/2) position of the base surface of the heat sink. When two or more devices are installed, the mounting holes (or group holes) are located at the uniformly distributed (L/2n) position above the centerline of the aluminum radiator base surface. Ensure that the screw torque is consistent when tightening the device.
3. It should not be processed after installation
After the aluminum radiator and power device are installed, it is not advisable to mechanically process or reshape the power device and radiator, otherwise, stress will be generated and the contact thermal resistance will increase. The single-sided fin type aluminum radiator is suitable for natural air cooling outside the equipment (such as installed outside the chassis), which not only facilitates the ventilation and heat dissipation of power devices but also reduces the temperature rise inside the machine.
