power storage device
By setting recesses of different depths in the heat exchanger of the energy storage device to adjust the flow area of the heat medium passage, the problem of uneven battery temperature in the energy storage device is solved, and flow balance and temperature uniformity are achieved, thereby improving cooling efficiency and the stability of the heat exchanger.
CN122158788APending Publication Date: 2026-06-05TOYOTA JIDOSHA KK
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2025-12-02
- Publication Date
- 2026-06-05
Smart Images
Figure CN122158788A_ABST
Abstract
The present disclosure relates to an electrical storage device. The electrical storage device includes a plurality of electrical storage units, and a first heat exchanger and a second heat exchanger that cool the plurality of electrical storage units and extend in an extending direction. The first heat exchanger has a first heat medium passage that extends in the extending direction and through which a heat medium flows inside the first heat exchanger, and a first recess that narrows a flow passage area of the first heat medium passage. The second heat exchanger has a second heat medium passage that extends in the extending direction and through which the heat medium flows inside the second heat exchanger, and a second recess that narrows a flow passage area of the second heat medium passage. The depth of the first recess is different from the depth of the second recess.
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