PTS Austria - Production Technology Systems
PTS Austria - Production Technology Systems
PTS Austria - Production Technology Systems
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PV-Solutions by <strong>PTS</strong>-<strong>Austria</strong> <strong>PTS</strong> <strong>Austria</strong><br />
<strong>PTS</strong> <strong>Austria</strong> GmbH<br />
Ebentalerstraße 170, 9020 Klagenfurt-<strong>Austria</strong><br />
T: +43(0)463/310870<br />
F: +43(0)463/310870-304<br />
Email: horst.mueller@pts-austria.at<br />
PV-Solutions by <strong>PTS</strong> <strong>Austria</strong><br />
string@once<br />
Latest Soldering <strong>Technology</strong><br />
Careful simultaneous soldering of all cells of a string<br />
Breakage rate < 0,1 %<br />
Cells as of 120 μm
<strong>PTS</strong><br />
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PV-Solutions by <strong>PTS</strong> <strong>Austria</strong><br />
Layup<br />
<strong>PTS</strong> String Soldering Machine 4010<br />
with string@once <strong>Technology</strong><br />
Technical Data:<br />
➢ Cell type 6” with 2BB/3BB as of 120 μm<br />
➢ Clock rate 800 cells/h (type 4010)<br />
➢ Breakage rate 0.1% for tested cells<br />
➢ string@once technology<br />
➢ Soft crimp method<br />
➢ System autonomy 1 hour<br />
➢ String length 9 or 10 cells<br />
➢ Vision system for cell feed and string check<br />
➢ automatic optical string check in<br />
incident and transmitted light<br />
➢ sunny + back side scan<br />
➢ check position of cells, interconnectors,<br />
and strings<br />
➢ crack and chip check<br />
➢ compensation for glass tolerances<br />
Soldering Station<br />
Solder ribbon preparation<br />
Cell feed<br />
➢ contactless sensor-controlled soldering process<br />
➢ cell-specific energy input<br />
➢ extremely gentle soldering process through the use of<br />
string@once technology<br />
➢ uniform, servo-controlled stretching of all solder ribbons<br />
➢ the softcrimp procedure that is used combines the benefits<br />
of beaded and non-beaded cell interconnectors<br />
➢ short conversion time from 2BB to 3BB<br />
➢ quick change system for ribbon rolls<br />
➢ spray flux system<br />
➢ SCARA robots with vacuum grippers<br />
➢ cell inspection by means of vision system<br />
➢ spray flux system<br />
➢ palletising system for cell trays provides autonomy for one hour<br />
<strong>PTS</strong> <strong>Austria</strong> GmbH
<strong>PTS</strong><br />
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PV-Solutions by <strong>PTS</strong> <strong>Austria</strong><br />
Intention<br />
<strong>PTS</strong>-string@once <strong>Technology</strong><br />
... more than just soldering<br />
The trends in the production of<br />
crystalline cells are in considerable<br />
contrast to those that have<br />
emerged in the past few years in<br />
the area of soldering crystalline cells.<br />
On one hand, one would like to produce<br />
cells that are thinner, not least due to<br />
the shortage of raw materials. On the<br />
other hand, manufacturers of soldering<br />
machines are trying to maximise output<br />
through a reduction of process times.<br />
The increasing fragility of the cells<br />
combined with the constant demand<br />
for breakage reduction inspired us<br />
to take a completely new direction<br />
in string production and develop the<br />
string@once technology.<br />
<strong>PTS</strong>-String@ONCE<br />
The string@once soldering technology is based on the principle of cell-specific<br />
energy input. All cells in a string are soldered at the same time in one operation.<br />
In the process, each cell only absorbs as much energy as it needs for its<br />
soldering process.<br />
Through this simultaneous soldering process, more time arises for the process<br />
design than for conventional soldering methods. The process time only for the<br />
soldering process should therefore be up to 40 seconds. In connection with the<br />
integrated pre- and post-heating zone, the system guarantees an extremely stressfree<br />
soldering process with the best soldering quality (see chart A “Comparison of<br />
Soldering <strong>Systems</strong> and Process Times”).<br />
string@once is the technology that processes cells > 120 μm with the lowest<br />
breakage rate.<br />
Soft crimp<br />
Module manufacturers are not of one<br />
opinion regarding beading: For some,<br />
beading is indispensible in order to be<br />
able to bridge the height differences<br />
between the front and back sides of<br />
the cells and hence reduce the stress<br />
on the edge of the cell. Others don’t<br />
use beading at all, because classical<br />
bead formation involves local<br />
losses of the interconnector elasticity<br />
and therefore promotes cell breakage.<br />
The soft crimp technique is a gentle<br />
method of preparing the soldering ribbon.<br />
Through special kinematics when<br />
shaping the ribbon, the elasticity of the<br />
interconnector is even increased. As a<br />
result, the stress on the edge of the cell<br />
and cell breakage are reduced.<br />
string@once: More time for careful cell soldering<br />
A Comparison of Soldering <strong>Systems</strong> and Process<br />
0 50 100 150 200<br />
Process time per soldered connection [s]<br />
Soldering system with<br />
string@once <strong>Technology</strong><br />
Soldering system with<br />
conventional technology<br />
<strong>PTS</strong> <strong>Austria</strong> GmbH
<strong>PTS</strong><br />
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PV-Solutions by <strong>PTS</strong> <strong>Austria</strong><br />
11<br />
Laminate trimming<br />
➢ Vision system for cut edge recognition<br />
➢ Fully automatic trimming of<br />
the laminate<br />
➢ High tool life<br />
3<br />
<strong>PTS</strong> Module <strong>Production</strong> Line<br />
2<br />
4<br />
1<br />
<strong>Production</strong> Line 40 MW/a<br />
12<br />
6<br />
Frame assembly<br />
➢ Frame profile loader with stacker<br />
➢ Automatic application of 2k glue<br />
➢ Automatic framing<br />
➢ One hour autonomous system<br />
7<br />
5<br />
10<br />
8<br />
1 Glass feed<br />
8<br />
2 Film cutting machine with integrated layup<br />
9<br />
3 Stringer 1<br />
10<br />
4 Stringer 2<br />
11<br />
5 Interconnection 1<br />
12<br />
6 Interconnection 2<br />
13<br />
7 Raw laminate buffer<br />
14<br />
11<br />
9<br />
7<br />
12<br />
Buffer systems<br />
➢ Laminate or module buffer<br />
➢ Capacity of 60 pieces<br />
➢ Optionally with<br />
turning function<br />
(sunnyside/backside)<br />
13<br />
15<br />
15<br />
Laminator 1<br />
Laminator 2<br />
Laminate buffer<br />
Laminate trimming<br />
Frame assembly<br />
Hardening buffer<br />
Pulsed solar simulator + labelling<br />
Module output<br />
14<br />
<strong>PTS</strong> <strong>Austria</strong> GmbH