Sunday, December 27, 2009
Monday, October 5, 2009
Saturday, October 3, 2009
tip's on soldering solar cells
http://www.solarcells101.com/
Instructions on Soldering Solar Cells together
Things You’ll Need:
* Multiple solar cells
* Ribbon or Bus wire 5mm
* Wire cutter/stripper
* Soldering iron 15-25 watts, and Rosin core solder with non-corrosive flux (best for the value)
* Pencil eraser
* Tab wire or solar cell tin wire 1.5mm or 2mm
* Step 1: Locate the wide line, or bus, running down the face of each cell. On whole solar cells there are multiple buses, but on broken cells there may be only one.
* Step 2: Clean the bus of each cell with a pencil eraser so the solder will stick.
* Step 3: Cut 10-inch lengths of ribbon wire, one per cell.
* Step 4: Lay a line of solder down the length of the cell's bus.
* Step 5: Place a length of ribbon wire on the solder. Leave a generous tab hanging off the cell and heat the wire with the soldering iron. The solder you just applied to the bus will melt and connect the wire to the cell.
* Step 6: Repeat Steps 4 and 5 for each cell or cell fragment.
* Step 7: Turn the cells face-down and arrange them in a column with the ribbon wire tabs hanging off the front and each cell laying on the back of the panel directly above it. Keep about 1/4-inch distance between the cells.
* Step 8: Solder each cell's free wire tab that is on the back of the cell above it to where it touches the back of that cell.
* Step 9: Repeat Step 8 until all of the cells are connected.
Tips & Warnings
* On both poly- and mono-crystalline solar cells, the back of the cell is the positive side and the front of the cell is the negative side.
I LIKE DOING ALL THE BOTTOMS FIRST WITH THE TAB WIRE HANGING OFF OF EACH ONE, IF YOUR USING 3"X6" SOLAR CELLS, YOU WILL CUT THE TAB WIRE 6" IN LENGTH. SO YOU HAVE 3" HANGING OVER TO SOLDER ON THE TOP OF THE NEXT CELL, KEEP DOING THIS THIS IS CALLED SOLDERING IN SERIES. THEN ARRANGE THEM IN ROWS, YOU CAN WORK FROM THE BOTTOM TO THE TOP, THIS MEANS LESS FLIPPING AROUND THE CELLS!!
MOST INSTRUCTIONS SAY TO DO THE TOP FIRST, BUT WHEN YOUR FINISHED YOU HAVE TO TAKE THE WHOLE ROW AND FLIP IT OVER, THIS MAY CAUSE THE CELLS TO BREAK. SO IF YOU SOLDER ALL OF THE TABBING WIRES TO THE BOTTOM CELLS FIRST, THEN YOU WORK WITH ALL OF THE TOPS NEXT YOU WILL HAVE YOUR SERIES CONNECTION. AFTER YOU ARE FINISHED, YOU CAN PLACE THE CELLS IN YOUR SOLAR PANEL FRAME AND CONNECT EACH ROW WITH BUS WIRE AND SOLDER EACH ROW IN A SERIES CONNECTION AS WELL. FOR EXAMPLE, LETS SAY YOU HAVE 9- CELLS IN EVERY ROW AND YOU HAVE 4 ROWS, THEN YOU NEED TO CONNECT THE ROWS IN SERIES AS WELL.
If you need solar cells, or solder ,tabbing wire we have it all at http://www.solarcells101.com/
Instructions on Soldering Solar Cells together
Things You’ll Need:
* Multiple solar cells
* Ribbon or Bus wire 5mm
* Wire cutter/stripper
* Soldering iron 15-25 watts, and Rosin core solder with non-corrosive flux (best for the value)
* Pencil eraser
* Tab wire or solar cell tin wire 1.5mm or 2mm
* Step 1: Locate the wide line, or bus, running down the face of each cell. On whole solar cells there are multiple buses, but on broken cells there may be only one.
* Step 2: Clean the bus of each cell with a pencil eraser so the solder will stick.
* Step 3: Cut 10-inch lengths of ribbon wire, one per cell.
* Step 4: Lay a line of solder down the length of the cell's bus.
* Step 5: Place a length of ribbon wire on the solder. Leave a generous tab hanging off the cell and heat the wire with the soldering iron. The solder you just applied to the bus will melt and connect the wire to the cell.
* Step 6: Repeat Steps 4 and 5 for each cell or cell fragment.
* Step 7: Turn the cells face-down and arrange them in a column with the ribbon wire tabs hanging off the front and each cell laying on the back of the panel directly above it. Keep about 1/4-inch distance between the cells.
* Step 8: Solder each cell's free wire tab that is on the back of the cell above it to where it touches the back of that cell.
* Step 9: Repeat Step 8 until all of the cells are connected.
Tips & Warnings
* On both poly- and mono-crystalline solar cells, the back of the cell is the positive side and the front of the cell is the negative side.
I LIKE DOING ALL THE BOTTOMS FIRST WITH THE TAB WIRE HANGING OFF OF EACH ONE, IF YOUR USING 3"X6" SOLAR CELLS, YOU WILL CUT THE TAB WIRE 6" IN LENGTH. SO YOU HAVE 3" HANGING OVER TO SOLDER ON THE TOP OF THE NEXT CELL, KEEP DOING THIS THIS IS CALLED SOLDERING IN SERIES. THEN ARRANGE THEM IN ROWS, YOU CAN WORK FROM THE BOTTOM TO THE TOP, THIS MEANS LESS FLIPPING AROUND THE CELLS!!
MOST INSTRUCTIONS SAY TO DO THE TOP FIRST, BUT WHEN YOUR FINISHED YOU HAVE TO TAKE THE WHOLE ROW AND FLIP IT OVER, THIS MAY CAUSE THE CELLS TO BREAK. SO IF YOU SOLDER ALL OF THE TABBING WIRES TO THE BOTTOM CELLS FIRST, THEN YOU WORK WITH ALL OF THE TOPS NEXT YOU WILL HAVE YOUR SERIES CONNECTION. AFTER YOU ARE FINISHED, YOU CAN PLACE THE CELLS IN YOUR SOLAR PANEL FRAME AND CONNECT EACH ROW WITH BUS WIRE AND SOLDER EACH ROW IN A SERIES CONNECTION AS WELL. FOR EXAMPLE, LETS SAY YOU HAVE 9- CELLS IN EVERY ROW AND YOU HAVE 4 ROWS, THEN YOU NEED TO CONNECT THE ROWS IN SERIES AS WELL.
If you need solar cells, or solder ,tabbing wire we have it all at http://www.solarcells101.com/
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