Device Including Cooling System

Abstract: A device according to an embodiment of the present invention is a device having at least one battery pack mounted therein, wherein the battery pack comprises: a battery cell stack in which a plurality of battery cells are stacked; a pack frame accommodating the battery cell stack; and a cooling member which is positioned on the upper side of the battery cell stack and includes cooling water, wherein the cooling member is connected to a water tank located in the device, the lower plate of the cooling member has at least one fragile portion that breaks or melts at a predetermined temperature or pressure or higher, and, when the fragile portion of the cooling member is opened so that the water level of the cooling water is lowered, the cooling water is supplied from the water tank to the cooling member.

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