公开(公告)号：US20240237311A1

公开(公告)日：2024-07-11

申请号：US18502930

申请日：2023-11-06

Applicant: DELTA ELECTRONICS, INC.

Inventor： Sheng-Hua LI ,  Wei-Chi LEE ,  Ming-Chen YEN ,  Chun-Han LIN

IPC: H05K7/20

CPC classification number: H05K7/20927 ,  H05K7/20272 ,  H05K7/20945

Abstract: A heat dissipation is used to dissipate heat for a power module of an AC-to-DC conversion module. The heat dissipation system includes a chiller, a heat exchanger, a first circulation pipeline, a second circulation pipeline, a first throttle valve, and a control module. The chiller, the heat exchanger, and the first circulation pipeline form a first circulation loop to circulate a low-temperature coolant. The second circulation pipeline is disposed on one side of the power module to form a second circulation loop, and absorbs a heat source generated by the power module by circulating a high-temperature coolant. The control module opens the first throttle valve to introduce the low-temperature coolant into the second circulation loop based on a temperature of the high-temperature coolant being greater than a temperature threshold so as to control the temperature to be less than or equal to the temperature threshold.