Battery unit temperature management device
AssigneeMazda Motor Corporation
InventorsTakashi Yamamoto, Toshiki Takahashi
Life of this patent
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Abstract
A battery unit temperature management device may include a plurality of battery units, a flow channel through which a heat exchange medium circulates so as to pass through the battery units, a plurality of changing structures provided to correspond to the battery units to make changes of heat transfer capacities between the battery units and the heat exchange medium, and a controller that controls, for each of the battery units, the change of the heat transfer capacity, by using each of the changing structures to reduce the temperature difference among the battery units.
Claims13
A battery unit temperature management device comprising:
- a plurality of battery units;
- a flow channel through which a heat exchange medium circulates so as to pass through the battery units;
- a plurality of changing structures provided to correspond to the battery units, each of the changing structures making a change of a heat transfer capacity between each of the battery units and the heat exchange medium;
- and
- a controller to control, for each of the battery units, the change of the heat transfer capacity by using each of the changing structures to reduce temperature difference among the battery units,
- wherein the changing structure includes a heat transfer material and an electromagnetic solenoid as an area changing structure,
- each of the battery units includes a plurality of battery cells disposed side by side, and the heat transfer material is in a corrugated plate shape, and changes in shape from the corrugated plate shape to a flat plate shape when receiving an external force in a direction in which the battery cells are arranged.
Dependencies are inferred from the claim text.