Equipment for vacuum-tight welding of vacuum flat panel solar collectors
A technology for solar collectors and vacuum sealing, which is applied to solar collectors, fixed bases/supports of solar collectors, sealing devices for solar collectors, etc., and can solve problems such as time-consuming
Inactive Publication Date: 2011-11-30
SRB ENERGY RES +1
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Problems solved by technology
This welding method is too time consuming as one skilled worker can only produce a maximum of double glazed solar panel collectors equal to about 40 square meters per day
Method used
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[0011] figure 1 and 2 shows a vacuum flat panel solar collector 1 comprising: a support structure 2 made of metal and provided with a peripheral upper metal frame 3 for holding and supporting a transparent upper transparent wall 4 which is preferably a glass wall, provided along its periphery with a metal coating 5; and a connecting strip, preferably a soft metal strip or strip 6, in particular lead and / or copper strip or strip, for vacuum sealing the first transparent wall 4 and Gaps 7 between metal frames 2. This soft metal strip 6 is welded, in particular soldered, to the peripheral metal frame 3 and to the peripheral metal coating 5 of the transparent wall 4 .
[0012] Such as figure 2 As shown, the upper metal frame 3 preferably comprises an upper planar surface 14 and a step 15 separated from the inner boundary of said surface 14 . Said step 15 forms a seat 16 of the lower boundary 17 of the transparent wall 4 ; and a support bar 18 connecting the step 15 to the bot...
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Device for vacuum tight soldering together a perimeter metal coating (5) of a transparent wall (4) to a perimeter metal frame (3) of a holding structure (2) of an evacuated solar collector (1), in particular a flat solar collector, said collector comprising a joining ribbon (6), preferably a soft metal strip or ribbon, in particular a lead and / or copper strip or ribbon, which is adapted to vacuum tight seal the gap (7) between said transparent wall (4) and said metal frame (3) and which is adapted to be soldered, in particular soft soldered, to said perimeter metal frame (3) and said perimeter metal coating (5) of the transparent wall (4), said joining ribbon comprising a soldering alloy, said device comprising heating means (24) for heating: a first part (5A) of said transparent wall (4) comprising at least a portion of said perimeter metal coating (5), a second part (3A) of said holding structure (2) comprising at least a portion of said perimeter metal frame (3), and said joining ribbon (6) to at least the melting temperature of said soldering alloy, when said transparent wall (4) is positioned in said holding structure (2) with said joining ribbon (6) overlapping at least partially said perimeter metal frame (3) and said metal coating (5), and pressure means (25) for applying at least on said first (5A) and second (3A) parts and said joining ribbon (6) a force which guarantees a mechanical contact of the melted soldering alloy to said metal frames (3) and said metal coating (5) throughout the solidification process of said soldering alloy.
Description
technical field [0001] The invention relates to an apparatus for vacuum-tight welding of a peripheral metal coating of a transparent wall to a peripheral metal frame of a support structure of an evacuated flat panel solar collector. Background technique [0002] Such vacuum flat panel solar collectors are known in the prior art and are described in WO2005 / 075900. [0003] A major problem in the manufacture of known evacuated flat panel solar collectors is welding the peripheral metal coating of the transparent walls of the solar collector to the corresponding peripheral metal frame of the solar collector support structure in a vacuum-tight manner. [0004] As far as is known, this welding can only be carried out by hand. This welding method is too time-consuming, since one skilled worker can only produce double-glazed solar panel collectors equal to a maximum of about 40 square meters per day. Contents of the invention [0005] The object of the present invention is to p...
Claims
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IPC IPC(8): B23K1/00
CPCF24J2/507B23K1/0008F24S80/54F24S80/58F24S80/70F24S2025/6011F24S2025/6013Y02E10/40B23K1/00
Inventor 克里斯托福洛·本韦努蒂
Owner SRB ENERGY RES