The heat sink is a device for dissipating heat from electronic components in electrical appliances. It is mostly made of aluminum alloy, brass or bronze in plate, sheet, and multi-sheet shapes. For example, the CPU central processing unit in the computer needs to be quite large. The heat sink, the power tube in the TV, the line tube, and the power amplifier tube in the power amplifier must use the heat sink. Generally, the heat sink should be coated with a layer of thermally conductive silicone grease on the contact surface of the electronic components and the heat sink during use, so that the heat emitted by the components can be more effectively transferred to the heat sink, and then radiated to the surrounding air through the heat sink.

? It can provide the effective volume of the space occupied by the device.
? It can make the device node allow it to reach a high temperature.
? It can reduce the power loss of the device.
? It can improve the environment (the temperature around the device and the flow rate of air).