COOLING DEVICE AND ELECTRIC VEHICLE USING COOLING DEVICE
First Claim
Patent Images
1. A cooling apparatus for cooling a heat emission device, comprising:
- a cooling liquid passage for passing a cooling liquid therethrough, the cooling liquid passage having a plurality of cooling fins;
the cooling fins having recesses defined therein at positions corresponding to at least a center of the heat emission device in a flow direction of the cooling liquid, the recesses defining a chamber without an introduction port for additional cooling liquid, in the cooling liquid passage, and the chamber being disposed directly below the heat emission device.
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Abstract
Provided are a cooling device and an electric vehicle using the cooling device. The cooling device is used for cooling a switching module containing a switching element as a heating element. The cooling device includes a cooling liquid channel having a plurality of cooling fins through which the cooling liquid flows. The cooling fins have a cut-off portion at the position corresponding at least to a center portion of chips constituting the switching module in the flow direction of the cooling liquid. A chamber is formed in the cooling liquid channel by the cut-off portion.
32 Citations
6 Claims
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1. A cooling apparatus for cooling a heat emission device, comprising:
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a cooling liquid passage for passing a cooling liquid therethrough, the cooling liquid passage having a plurality of cooling fins; the cooling fins having recesses defined therein at positions corresponding to at least a center of the heat emission device in a flow direction of the cooling liquid, the recesses defining a chamber without an introduction port for additional cooling liquid, in the cooling liquid passage, and the chamber being disposed directly below the heat emission device. - View Dependent Claims (2, 3, 4)
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5. An electric vehicle comprising:
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a cooling apparatus for cooling a heat emission device, comprising a cool liquid passage for passing a cooling liquid therethrough, the cooling liquid passage having a plurality of cooling fins, the cooling fins having recesses defined therein at positions corresponding to at least a center of the heat emission device in a flow direction of the cooling liquid, the recesses defining a chamber without an introduction port for additional cooling liquid, in the cooling liquid passage, and the chamber being disposed directly below the heat emission device; an electric motor for rotating wheels; an electric generator and an electricity storage device for supplying electric power in a parallel relationship to the electric motor and a DC/DC converter connected between the electricity storage device and the electric generator, for converting voltage generated by the electricity storage device and applying the converted voltage to the electric motor, and converting voltage regenerated by the electric motor in a regenerative mode or voltage generated by the electric generator and applying the converted voltage to the electricity storage device, wherein the heat emission device includes a switching device provided in the DC/DC converter. - View Dependent Claims (6)
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Specification