Patent ID: 6451475
Filing Date: 2002-09-17
Classification: H01M,Y02E

Abstract:
An interlocking modular cell tray assembly with front access to said modular cell tray assembly, which comprises,a base, said base having front and rear interlocking structure means, at least one stackable cell tray for assembly onto said base, said cell tray having top and bottom walls, and side walls connecting said top and bottom walls, cell receiving areas in said cell tray to receive battery cells, cell retaining means to retain said battery cells in said areas, self interlocking rear interlocking structure means on said cell tray bottom wall for engagement with said base rear interlocking structure means, said base rear interlocking structure means includes a rear wall, a top wall connected to said rear wall, a rearwardly inclined front wall, a plurality of tabs extending from said top wall, and a plurality of slots in said front wall, said rear interlocking structure means on said cell tray bottom wall includes a front wall, a bottom wall connected to said front wall, a rearwardly inclined rear wall connected to bottom wall, a plurality of slots in said rearwardly inclined wall to receive said tabs from said cell tray bottom wall rear interlocking structure means and, a plurality of tabs extending from said cell tray rear interlocking structure means to engage in said slots in said base rearwardly inclined wall, whereby upon contact, said forwardly and rearwardly inclined walls provide a wedged rear interlock, front interlocking structure means on said cell tray bottom wall for engagement with said base front interlocking structure means, said base front interlocking structure means includes a â€œUâ€  shaped channel, a plurality of openings in said channel, a plurality of captive nuts on said channel adjacent said openings, said cell tray front interlocking structure means on said cell tray bottom wall includes a front wall, a bottom wall and a rear wall intended to engage said U-shaped channel having openings therein, bolts to be inserted into said cell tray rear wall openings and said channels to retain them together, said cell tray top walls including front interlocking structure means which includes a second U-shaped channel, a plurality of openings in said channel, a plurality of captive nuts on said channel adjacent said openings, said cell tray side walls having a plurality of openings, and bolts inserted into said openings and said captive nuts on said second U-shaped channel to cause said front tray and said front base interlocking structures to contact, thereby wedging together said base and said cell tray front interlocking structures.