Cooling device for cooling electronic components

A cooling device for cooling to-be-cooled electronic components on one side of a printed circuit board when electronic components on an opposite side of the printed circuit board need to be repaired, comprising:

• a base plate;
• a power source arranged on the base plate;
• and
• a cooling module arranged on the base plate, comprising:
• a heat sink;
• a cooling sheet comprising a hot surface in contact with the heat sink and a cooling surface, when the power source provides power to the cooling sheet, the cooling surface being in a constant state of low temperature, and the hot surface being in a constant state of high temperature;
• and
• a thermal conductive base located above the cooling surface and configured to support the to-be-cooled electronic components on the printed circuit board and transfer heat between the to-be-cooled electronic components and the cooling surface;
• wherein, heat from the to-be-cooled electronic components is transferred from the thermal conductive base to the cooling surface due to heat transfer between the thermal conductive base and the cooling sheet, and heat from the cooling surface to the hot surface is transferred to the heat sink, and the heat sink dissipates the heat from the hot surface.