Cooling structure for a battery pack, battery pack and power-consuming device

Abstract

Cooling structure for a battery pack, characterized in that it comprises: a lower heat exchange plate (11), wherein the lower heat exchange plate (11) has a first side (111) and a second side (112) opposite each other, wherein a first liquid inlet (113) and a first liquid outlet (114) are arranged on the first side (111), wherein a plurality of liquid inlet channels (115), all connected to the first liquid inlet (113), and a plurality of liquid return channels (116), all connected to the first liquid outlet (114), are arranged in the lower heat exchange plate (11), wherein the plurality of liquid inlet channels (115) and the plurality of liquid return channels (116) are connected to each other on the second side (112) via a collecting channel (117).wherein a number of liquid return channels (116) is less than a number of liquid inlet channels (115); a plurality of lateral heat exchange plates (15), wherein the plurality of lateral heat exchange plates (15) are spaced apart, wherein a plurality of battery receiving spaces (14) are formed between the lower heat exchange plate (11) and the plurality of lateral heat exchange plates (15), wherein a lateral cooling channel (151) is arranged in each of the lateral heat exchange plates (15), wherein a second liquid inlet (152) and a second liquid outlet (153) are arranged at both ends of each of the lateral heat exchange plates (15) and are connected to the lateral cooling channel (151), wherein the plurality of second liquid inlets (152) of the plurality of lateral heat exchange plates (15) located on the second side (112) are connected to the liquid inlet channels (115),wherein the plurality of second liquid outlets (153) of the plurality of lateral heat exchange plates (15) located on the first side (111) are connected to the liquid return channels (116); wherein a sum S1 of cross-sectional areas of all lateral cooling channels (151) and a sum S2 of cross-sectional areas of all liquid inlet channels (115) satisfy the following condition: 0.1 ≤ S1 / S2 ≤ 0.7, where S1 is given in mm² and S2 in mm².