Abstract: A battery box structure includes a battery module, a holding frame which holds the battery module, a case which is made from expanded insulating resin and which stores the holding frame, and an elastic member secured to the holding frame and arranged between the battery module and the case, wherein the elastic member includes an upper wall and flanges extending from both side edges of the upper wall, and wherein a distance between the flanges is substantially the same as a width of a protrusion of the holding frame for securing the elastic member to the holding frame.

Abstract: The battery box structure of the present invention includes: a plurality of battery modules; a pair of holding frames which hold the battery modules; and an insulator which is made from expanded insulating resin and which stores the holding frame.

Abstract: A small battery box, in which arrangement of cells can be easily changed, for suppressing nonuniformity in temperature distribution between the cells. The box has a container having upper, lower, front, rear, and side portions which can be disassembled; a battery holder having members which are detachably connected in a manner such that central axes of the cells are parallel to a direction along which the side portions face each other and the cells are arranged in a zig-zag matrix form; a shielding member, near a coolant supply opening in the front portion, for changing the flow direction of the coolant and for preventing the coolant from directly blowing onto the cells; and a control member, near a coolant discharge opening in the rear portion, for changing the coolant flow direction in a manner such that the coolant flows towards the rear side of each cell near the discharge opening.

Abstract: A small battery box, in which arrangement of cells can be easily changed, for suppressing nonuniformity in temperature distribution between the cells. The box has a container having upper, lower, front, rear, and side portions which can be disassembled; a battery holder having members which are detachably connected in a manner such that central axes of the cells are parallel to a direction along which the side portions face each other and the cells are arranged in a zig-zag matrix form; a shielding member, near a coolant supply opening in the front portion, for changing the flow direction of the coolant and for preventing the coolant from directly blowing onto the cells; and a control member, near a coolant discharge opening in the rear portion, for changing the coolant flow direction in a manner such that the coolant flows towards the rear side of each cell near the discharge opening.

Abstract: A side-face illuminating optical fiber comprising a core 1 transmitting therethrough light entering from an incident end of the optical fiber, a cladding 2 made of silica aerogel which covers an outer peripheral surface of the core, a transparent coating layer 3 which covers an outer periphery of the cladding, and an illuminating portion formed at least in a part of an interface between the core and the cladding. The light transmitting though said core radiates through the illuminating portion to the cladding.