06219245 is referenced by 16 patents and cites 17 patents.

A power electronics chassis (

10

) and liquid-cooled heat sink mounting assembly for electric vehicles and other applications that use liquid coolant to cool power electronic devices (

20

) contained within an electrically conductive housing (

12

). The power electronics chassis (

10

) includes an inverter (

18

) containing power switching devices (

20

) that are heat sunk using the liquid-cooled mounting assembly. The mounting assembly includes a heat exchanger (

22

) and a plastic, electrically non-conductive coolant manifold (

16

) that has an inlet (

26

) and outlet (

28

) for passage of liquid coolant into and out of the electronics housing (

12

). The power switching devices (

20

) are attached to a mounting surface (

40

) of the heat exchanger (

22

) and are thermally coupled to the coolant within the heat exchanger (

22

) via the mounting surface (

40

). The inlet (

26

) and outlet (

28

) of the plastic coolant manifold (

16

) are connected to the heat exchanger (

22

) by conduits (

30,32

) to thereby permit circulation of liquid coolant into the chassis housing (

12

), through the heat exchanger (

22

), and back out of the chassis housing (

12

) while maintaining electrical isolation between the liquid coolant and chassis housing (

12

). This configuration significantly reduces the radiated EMI by significantly reducing the parasitic capacitance between the switching devices (

20

) and chassis housing (

12

).

Title
Electrically isolated power switching device mounting assembly for EMI reduction
Application Number
9/551249
Publication Number
6219245 (B1)
Application Date
April 18, 2000
Publication Date
April 17, 2001
Inventor
Scott D Downer
Torrance
CA, US
Terence G Ward
Redondo Beach
CA, US
James Nagashima
Cerritos
CA, US
Agent
Anthony Luke Simon
US
Assignee
General Motors Corporation
MI, US
IPC
H05K 7/20
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