| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a battery pack including a plurality of battery modules which prevents pressure loss of a heating medium from increasing and achieves higher heat exchange efficiency. <P>SOLUTION: In a battery pack including a plurality of battery modules, a space used for a passage of a heat medium between adjacent battery modules is formed, and a plurality of protrusions protruded toward inside of the space are arranged on opposing surfaces of planes defining the space. The protrusions have anisotropic dimensions in cross sections sectioned by the surface. The protrusions arranged on one surface of the opposing surfaces and the protrusions arranged on the other surface of the opposing surfaces are arranged at positions deviated from positions being opposed to each other with the space interposed therebetween in a flow direction of the heat medium. Further, longer directions of the cross sections of the protrusions arranged on one surface of the opposing surfaces and the protrusions arranged on the other surface of the opposing surfaces are inclined in the same direction to the flow direction of the heat medium. <P>COPYRIGHT: (C)2013,JPO&INPIT |
