CN210040217U - Stitch welding solar energy component - Google Patents
Stitch welding solar energy component Download PDFInfo
- Publication number
- CN210040217U CN210040217U CN201920667269.3U CN201920667269U CN210040217U CN 210040217 U CN210040217 U CN 210040217U CN 201920667269 U CN201920667269 U CN 201920667269U CN 210040217 U CN210040217 U CN 210040217U
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- China
- Prior art keywords
- battery
- strip
- solar module
- stitch
- substrate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
A stitch-welding solar module mainly comprises toughened glass, upper packaging glue, a battery module, lower packaging glue and a back plate; the battery assembly is formed by connecting a plurality of battery strings in parallel, and the battery strings are formed by mutually overlapping and connecting small battery pieces which are divided into battery pieces by a laser scribing means in series; set up ultra-thin solder strip between the little battery piece of mutual overlap joint, this stitch welding solar energy component structural design science, the battery piece photic area is big, low in production cost, laminating power is strong.
Description
Technical Field
The utility model relates to a solar energy component field especially relates to a stitch welding solar energy component.
Background
The solar cell module consists of high-efficiency single crystal/polycrystalline solar cells, low-iron super white suede toughened glass, EVA (ethylene vinyl acetate), TPT (thermoplastic vulcanizate), interconnection bars, bus bars, a back plate and an aluminum alloy frame, and the service life of the solar cell module can reach 15-25 years.
The single solar cell cannot be directly used as a power supply. The power supply must be composed of several single batteries connected in series, parallel and tightly packed. Solar cell modules (also called solar panels and photovoltaic modules) are core parts in solar power generation systems and are the most important parts in the solar power generation systems. The solar energy is converted into electric energy, or the electric energy is sent to a storage battery for storage, or a load is pushed to work. The quality and cost of the solar module will directly determine the quality and cost of the overall system.
The imbrication technology is an assembly packaging technology which is peculiar to SunPower and patented in the United states, one of the technical cores of the imbrication technology lies in a unique battery plate connecting technology, the imbrication technology replaces a welding strip in the traditional technology, and meanwhile, the connecting force among battery plates can be improved on the basis of the traditional technology, and the reliability of battery connection is guaranteed.
The shingle is formed by cutting a conventional battery piece into 1/5 size, directly connecting two battery pieces with conductive adhesive, superposing and adhering the two battery pieces together, and connecting the battery strings. The conventional assembly generally keeps the cell spacing of about 2-3 mm, and the tiling process realizes no cell spacing by overlapping small cells, and more cells (66 cells can be packaged by a 60-type conventional assembly) can be placed in the same area, so that the light receiving area of the cells is effectively enlarged, and the average power generation density of the assembly is improved. In addition, the shingle technology replaces the solder strip with conductive adhesive, avoids solder strip shielding, is beneficial to improving the power of the assembly, shortens the movement distance of electrons, and effectively improves the output power, and the shingle technology can improve the power of the assembly by 15-20W which is far higher than that of the assembly technologies such as a half-piece and multi-main grid.
However, the conductive adhesive contains silver, which results in high cost, and thus the cost for producing the laminated assembly is high, and when the conductive adhesive is used, it is complicated to control the overlapping area between the upper and lower battery plates.
Chinese patent CN109509805A discloses a laminated assembly and a method for manufacturing the same; chinese patent CN108365040A discloses a solder strip for a laminated solar cell sheet assembly; chinese patent CN109360863A discloses a novel laminated assembly, and chinese patent CN208690275U discloses a solar cell for a laminated assembly and a welded structure of the laminated assembly, which are all improved in the aspects of cell arrangement, connection welding strip and the like of the laminated assembly.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a structural design science, the stitch welding solar energy component that the battery piece photic area is big, low in production cost, laminating power is strong.
For realizing the utility model provides the following technical scheme:
a stitch-welding solar module mainly comprises toughened glass, upper packaging glue, a battery module, lower packaging glue and a back plate; the battery assembly is formed by connecting a plurality of battery strings in parallel, and the battery strings are formed by mutually overlapping and connecting small battery pieces which are divided into battery pieces by a laser scribing means in series; an ultrathin welding strip is arranged between the small battery pieces which are mutually overlapped, the ultrathin welding strip comprises a strip-shaped base material, the upper surface and the lower surface of the base material are covered with a tin paste layer, a plurality of bulges are uniformly arranged on the tin paste layer, and a sheet-shaped barrier strip is arranged at the end part of one end of the tin paste layer; the solder paste barrier strip on the upper surface of the substrate is flush with the left end of the substrate, and the solder paste barrier strip on the lower surface of the substrate is flush with the right end of the substrate.
Further, the height of the barrier strips in the solder paste layer is slightly higher than that of the bumps.
Furthermore, the battery piece is divided into 1/2-1/12 small battery pieces, and the area of the small battery pieces which are mutually overlapped is 0.5-1.5 mm.
Further, the shape of the protrusion is saw-toothed or hemispherical.
Further, the thickness of the ultrathin welding strip is 0.05-0.15 mm.
Further, the back plate is made of high molecular polymer or toughened glass.
The utility model discloses an useful part:
firstly, the method comprises the following steps: by using the tiling technology and the ultrathin welding strip, the purposes of increasing the light receiving area of the battery piece and improving the average power generation density of the assembly are achieved, and meanwhile, the production cost is reduced;
secondly, the method comprises the following steps: after the ultrathin welding strip is used, the lamination between the small battery pieces can use the traditional series welding machine without replacing new equipment, so that the production cost of an enterprise is saved;
thirdly, the method comprises the following steps: the tin paste layer is hot melted during heating and welding, and the bulges can ensure that the melted tin paste layer has a left-right extending space, so that the tin paste layer is prevented from overflowing excessively;
fourthly: the height of the barrier strip is slightly higher than that of the bulge, and a space extending up and down is formed when the barrier strip is pressed down in the hot melting welding process;
fifth, the method comprises the following steps: the end of the solder paste layer is provided with a barrier strip, two small battery pieces can be used as an indication mark line when being attached, and meanwhile, when being welded, the attaching force between the small battery pieces can be increased after the solder paste layer is hot-melted.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1.
In the figure: 1 is toughened glass, 2 is upper packaging glue, 3 is battery pack, 3.1 is little battery piece, 4 is lower packaging glue, 5 is the backplate, 6 is ultra-thin solder strip, 6.1 is the substrate, 6.2 is the tin cream layer, 6.3 is the arch, 6.4 is the blend stop.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
A stitch-welding solar component (refer to figure 1) mainly comprises toughened glass 1, upper packaging glue 2, a battery component 3, lower packaging glue 4 and a back plate 5; the battery component 3 is formed by connecting a plurality of battery strings in parallel, and the battery strings are formed by mutually overlapping and connecting small battery pieces 3.1 which are divided into battery pieces by a laser scribing means in series; an ultrathin welding strip 6 is arranged between the small battery pieces 3.1 which are mutually overlapped, the ultrathin welding strip 6 comprises a strip-shaped base material 6.1, the upper surface and the lower surface of the base material 6.1 are respectively covered with a tin paste layer 6.2, a plurality of bulges 6.3 are uniformly arranged on the tin paste layer 6.2, and a sheet-shaped barrier strip 6.4 is arranged at the end part of one end of the tin paste layer 6.2; the tin cream layer blend stop 6.4 that is located substrate 6.1 upper surface flushes with substrate 6.1 left end, and the tin cream layer blend stop 6.4 that is located substrate 6.1 lower surface flushes with substrate 6.1 right-hand member, blend stop 6.4's in the tin cream layer 6.2 height a little is higher than protruding 6.3, the little battery piece 3.1 of 1/2 ~ 1/12 is cut apart into to a battery piece, the region of mutual overlap joint is 0.5~1.5mm between the little battery piece 3.1, protruding 6.3's shape is cockscomb structure or hemispherical, the thickness of ultra-thin solder strip 6 is 0.05-0.15mm, backplate 5 is high molecular polymer or toughened glass.
The substrate 6.1 in the ultra-thin solder strip 6 can be the copper strips, laminates two little battery pieces 3.1 along blend stop 6.4, and hot-pressing welding, the hot melt of tin cream layer 6.2 is in the same place two little battery pieces 3.1 concatenations, then connects the battery cluster in parallel into battery pack 3, encapsulates again, and the backplate can be high molecular polymer, also can adopt toughened glass to form dual glass assembly.
The present invention is not limited to the stitch-welded solar module according to the above-mentioned embodiments, and various changes can be made by those skilled in the art, but any changes equivalent or similar to the present invention are intended to be covered by the scope of the present invention.
Claims (6)
1. A stitch-welding solar module mainly comprises toughened glass, upper packaging glue, a battery module, lower packaging glue and a back plate; the battery assembly is formed by connecting a plurality of battery strings in parallel, and the battery strings are formed by mutually overlapping and connecting small battery pieces which are divided into battery pieces by a laser scribing means in series; the method is characterized in that: an ultrathin welding strip is arranged between the small battery pieces which are mutually overlapped, the ultrathin welding strip comprises a strip-shaped base material, the upper surface and the lower surface of the base material are covered with a tin paste layer, a plurality of bulges are uniformly arranged on the tin paste layer, and a sheet-shaped barrier strip is arranged at the end part of one end of the tin paste layer; the solder paste barrier strip on the upper surface of the substrate is flush with the left end of the substrate, and the solder paste barrier strip on the lower surface of the substrate is flush with the right end of the substrate.
2. A stitch bonded solar module as claimed in claim 1, wherein: the height of the barrier strips in the tin paste layer is slightly higher than that of the bulges.
3. A stitch bonded solar module as claimed in claim 1, wherein: the battery piece is divided into 1/2-1/12 small battery pieces, and the area where the small battery pieces are mutually overlapped is 0.5-1.5 mm.
4. A stitch bonded solar module as claimed in claim 1, wherein: the shape of the bulge is sawtooth-shaped or hemispherical.
5. A stitch bonded solar module as claimed in claim 1, wherein: the thickness of the ultrathin welding strip is 0.05-0.15 mm.
6. A stitch bonded solar module as claimed in claim 1, wherein: the back plate is made of high molecular polymer or toughened glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920667269.3U CN210040217U (en) | 2019-05-10 | 2019-05-10 | Stitch welding solar energy component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920667269.3U CN210040217U (en) | 2019-05-10 | 2019-05-10 | Stitch welding solar energy component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210040217U true CN210040217U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920667269.3U Expired - Fee Related CN210040217U (en) | 2019-05-10 | 2019-05-10 | Stitch welding solar energy component |
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| Country | Link |
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| CN (1) | CN210040217U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594284A (en) * | 2021-09-28 | 2021-11-02 | 中国华能集团清洁能源技术研究院有限公司 | Full series-parallel photovoltaic module |
| CN113659031A (en) * | 2021-07-01 | 2021-11-16 | 合肥晶澳太阳能科技有限公司 | Solar cell string, photovoltaic module and preparation method thereof |
| CN114975660A (en) * | 2022-06-04 | 2022-08-30 | 骥志(江苏)新能源科技有限公司 | A lightweight shingled photovoltaic module based on ultra-thin tempered glass |
-
2019
- 2019-05-10 CN CN201920667269.3U patent/CN210040217U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113659031A (en) * | 2021-07-01 | 2021-11-16 | 合肥晶澳太阳能科技有限公司 | Solar cell string, photovoltaic module and preparation method thereof |
| CN113594284A (en) * | 2021-09-28 | 2021-11-02 | 中国华能集团清洁能源技术研究院有限公司 | Full series-parallel photovoltaic module |
| CN114975660A (en) * | 2022-06-04 | 2022-08-30 | 骥志(江苏)新能源科技有限公司 | A lightweight shingled photovoltaic module based on ultra-thin tempered glass |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |