HEAT-DISSIPATION DEVICE FOR POWER SUPPLY OF CHARGING PILE FOR NEW ENERGY VEHICLES

摘要

A heat-dissipation device for a power supply of a charging pile for new energy vehicles, comprising a heat-dissipation base (10) and a water-cooling device (20) provided on one side of the heat-dissipation base (10). The heat-dissipation base (10) is provided with a cooling chamber (11, 12) and an electronic component accommodating cavity (16). Heat-dissipation elements (111, 121, 31, 41) are provided in the cooling chamber (11, 12). The water-cooling device (20) comprise a heat-dissipation water drain (21) communicated with the cooling chamber (11, 12), and a water pump (22) for circularly pumping a cooling liquid between the cooling chamber (11, 12) and the heat-dissipation water drain (21). The top surface and the bottom surface of the cooling chamber (11, 12) are provided with an upper absorber plate (30) and a lower absorber plate (40), respectively. In the heat-dissipation device, the upper absorber plate (30) and the lower absorber plate (40) can quickly transfer the heat of the components of the power supply to the heat-dissipation base (10); the cooling liquid cooled by the heat-dissipation water drain (21) enters the cooling chamber (11, 12), and the cooling liquid absorbs the heat on the heat-dissipation base (10) to became hot water and then enters the heat-dissipation water drain (21) again for cooling, the cooled water enters the cooling chamber (11, 12) again for absorbing heat, and this cycle is repeated to complete the heat exchange of the heat-dissipation base (10), thereby implementing the quick heat dissipation of the components of the power supply, and prolonging the service life of the power supply.