Cooling system for onboard electrical power converter, and electrical power converter for railway vehicle
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United States of America Patent
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Nov 4, 2014
Issued Date -
N/A
app pub date -
Aug 19, 2011
filing date -
Aug 31, 2010
priority date (Note) -
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Abstract
A cooling system for an onboard electrical power converter in which a heat dissipation surface extends parallel to a flow of cooling air draft includes: a coolant tank containing coolant that includes a bottom surface being in thermal contact with the heat dissipation surface; a first conduit provided connecting to an upper surface of the coolant tank, the coolant flowing into the first conduit; a heat exchanger that comprises second conduits arranged with opposing the upper surface, and conducts the coolant to upstream; and a return unit that returns the coolant to the coolant tank; wherein the heat exchanger comprises heat dissipation fins through which the cooling air draft passes from a first to a second side, the heat dissipation fins being provided on surfaces of the second conduits, the first side not facing the coolant tank and the second side facing the coolant tank.
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