Saturday, July 26, 2014

FABRICATING BATTERY MODULE HOLD DOWN CLIPS

The pack is going through the final bottom balance with the JLD404 set up to turn on a small flash light bulb at 2.7 volts and then discharge until the battery reaches 2.5 volts. The cells all seem to have pretty much settled out at just under 2.7 volts.

While bottom balancing the cells, I am fabricating steel end plates and have welded clips on the plate to hold down the module. On the inside plate, the angle is long enough that holes will be drilled and the plate bolted down to the support angles. I wrote about them it the last post but here is the completed inboard end plate.


INBOARD MODULE END PLATE

On the outboard side of the module, the end of the angle used to make the rack is not long enough to bolt the clips, so the clips will be turned around and will hook under the rack angle. Below is a rough diagram and a picture of the cell in place to confirm that the clips will hook the end of the angle.



OUTBOARD HOLD DOWN CLIP DIAGRAM


CELL WITH CLIPS UNDER RACK ANGLE

With any luck I will be able to start mounting the module tomorrow, if I can find a metric tap to thread the holes for the tie bars.

Thanks for visiting,

Randy
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