US 12,207,451 B2
Electric vehicle and power converter thereof
Sheng-Nan Tsai, Taoyuan (TW); Ying-Chung Chuang, Taoyuan (TW); Chia-Jung Liu, Taoyuan (TW); Yi-Wei Chen, Taoyuan (TW); Han-Yu Tai, Taoyuan (TW); and Shao-Hsiang Lo, Taoyuan (TW)
Assigned to DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed by Delta Electronics, Inc., Taoyuan (TW)
Filed on Nov. 16, 2022, as Appl. No. 17/987,963.
Application 17/987,963 is a division of application No. 17/220,092, filed on Apr. 1, 2021, granted, now 11,547,026.
Claims priority of application No. 202010969708.3 (CN), filed on Sep. 15, 2020.
Prior Publication US 2023/0070726 A1, Mar. 9, 2023
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20927 (2013.01) [H05K 7/20872 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A power converter, comprising:
a housing, forming a receiving space, wherein the housing comprises a first housing port and a second housing port;
a heat dissipation module, detachably connected to the housing, and disposed in the receiving space, wherein the heat dissipation module comprises an inner path, the inner path communicates the first housing port with the second housing port, a working fluid enters the inner path via the first housing port, and the working fluid leaves the inner path via the second housing port; and
a first circuit board, comprising a first circuit board body and a first heat source, wherein the first heat source is disposed on the first circuit board body, and the first heat source is thermally connected to the inner path of the heat dissipation module,
wherein the heat dissipation module comprises a first module unit, a second module unit, and a third module unit, the second module unit overlaps the first module unit, the third module unit overlaps the first module unit, the inner path passes through the first module unit, the second module unit, and the third module unit,
wherein the working fluid enters the first module unit first; then, the working fluid passes through the first module unit to enter the second module unit; next, the working fluid passes the second module unit to enter the third module unit; and finally the working fluid leaves the third module unit,
wherein at least a portion of the third module unit is located between the first module unit and the second module unit.