| CPC H01M 10/6554 (2015.04) [H01M 6/50 (2013.01); H01M 6/5038 (2013.01); H01M 10/613 (2015.04); H01M 50/209 (2021.01); H01M 50/244 (2021.01); H01M 50/264 (2021.01)] | 13 Claims |

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1. A battery box, comprising:
a heat exchange plate comprising a first plate and a second plate, wherein the second plate joins from below with the first plate to form a flow passage therebetween for a heat exchange medium to flow through;
a lower frame body located on the first plate of the heat exchange plate, wherein the lower frame body comprises edge beams and internal beams, the edge beams form a circumferential closure opened in an up-down direction, the edge beams and the first plate of the heat exchange plate together form an accommodating space with an upward opening, and the internal beams are located inside the accommodating space and divide the accommodating space into sub-accommodating spaces for placing battery modules; the heat exchange plate is configured to support the battery modules and exchanges heat with batteries of the battery modules, and at least one portion of a bottom plane of the internal beam is spaced in part and not in contact with a top plane of the first plate of the heat exchange plate in the up-down direction, and the at least one portion of the bottom plane of the internal beam is heat insulated from the top plane of the first plate of the heat exchange plate, at least one of the internal beams has an accommodating cavity located above a location where the bottom plane of the internal beam contacts the top plane of the first plate of the heat exchange plate;
a heat insulation glue filled between the at least one portion of the bottom plane of the internal beam and the top plane of the first plate of the heat exchange plate; and
a fastener selected from at least one of a rivet, a combination of a bolt and a nut, and a screw, wherein the fastener passes through the first plate of the heat exchange plate and the internal beam at a location where the bottom plane of the internal beam contacts the top plane of the first plate of the heat exchange plate and extends into the accommodating cavity to fix the heat exchange plate to the lower frame body.
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