CN209859959U - anti-PID crystalline silicon solar cell module - Google Patents
anti-PID crystalline silicon solar cell module Download PDFInfo
- Publication number
- CN209859959U CN209859959U CN201920666841.4U CN201920666841U CN209859959U CN 209859959 U CN209859959 U CN 209859959U CN 201920666841 U CN201920666841 U CN 201920666841U CN 209859959 U CN209859959 U CN 209859959U
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- China
- Prior art keywords
- glass layer
- toughened glass
- solar cell
- pid
- main battery
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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
Abstract
The PID-resistant crystalline silicon solar cell module is provided with a toughened glass layer, a cell piece group and a back plate in sequence from top to bottom; one side of the toughened glass layer, which is in contact with air, is an arc-shaped convex surface, the other side of the toughened glass layer is a horizontal plane, a connecting part is arranged at the outer edge of the toughened glass layer, the upper end of the connecting part is horizontal, and the lower end of the connecting part protrudes downwards; a cavity is formed between the toughened glass layer and the cell group; the solar cell module is scientific in structural design, and can effectively solve the PID effect, and is large in sunlight absorption area, large in effective power generation area and large in output power.
Description
Technical Field
The utility model relates to a solar cell field especially relates to anti PID crystalline silicon solar module.
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.
In conventional solar cell modules, the PID effect (Potential Induced Degradation) is known as Potential Induced Degradation. The direct damage of PID is that a large amount of charges are accumulated on the surface of a battery piece, so that the passivation effect of the surface of the battery is deteriorated, the filling factor, the open-circuit voltage and the short-circuit current of the battery piece are reduced, and the power of a battery assembly is attenuated. There are many causes for the PID effect, and it is generally considered that the battery module is divided into 5 layers during the lamination of the package. From outside to inside: glass, EVA, battery piece, EVA, backplate. Since 100% insulation is not possible with EVA materials, especially in humid environments moisture can enter the interior of the module through the silica gel or backing sheet for edge sealing purposes. The ester bond of EVA is decomposed when meeting water to generate freely movable acetic acid, sodium ions are generated after the acetic acid reacts with the alkali on the surface of the glass, and the sodium ions move to the surface of the cell under the action of an external electric field and are enriched to the anti-reflection layer to cause the PID phenomenon.
Chinese patent CN203205440U discloses an anti-PID photovoltaic module, CN203225269U discloses an anti-PID photovoltaic module, CN203859125U discloses an anti-PID crystalline silicon solar cell module, CN203950818U discloses a low-cost anti-PID photovoltaic module, and the above patents are the same as most anti-PID photovoltaic modules in the market, and the EVA glue layer or the packaging mode is improved, thereby improving the anti-PID performance of the photovoltaic module.
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, can effectively solve PID effect, sunlight absorption area big, effective generating area big, an anti PID crystalline silicon solar module that output is big.
For realizing the utility model provides the following technical scheme:
the PID-resistant crystalline silicon solar cell module is provided with a toughened glass layer, a cell piece group and a back plate in sequence from top to bottom; one side of the toughened glass layer, which is in contact with air, is an arc-shaped convex surface, the other side of the toughened glass layer is a horizontal plane, a connecting part is arranged at the outer edge of the toughened glass layer, the upper end of the connecting part is horizontal, and the lower end of the connecting part protrudes downwards; a cavity is formed between the toughened glass layer and the cell group; the battery piece group comprises a main battery piece group and an auxiliary battery piece group.
Further, the cavity is vacuum or filled with inert gas.
Furthermore, the battery piece group and the back plate are connected by packaging glue.
Furthermore, the lower end of the connecting part of the toughened glass layer is connected with the back plate in a sealing mode through butyl rubber, and the toughened glass layer, the butyl rubber and the outer side wall of the back plate wrap the outer frame.
Furthermore, the main battery sheet set comprises a plurality of main battery sheets which are evenly tiled and rectangular, four corners of each main battery sheet are chamfers, and blank areas are formed at the chamfers of the upper main battery sheet, the lower main battery sheet, the left main battery sheet and the right main battery sheet which are adjacent to each other; the auxiliary battery piece group comprises a plurality of round or rectangular auxiliary battery pieces, and the auxiliary battery pieces are arranged in the blank regions.
The utility model discloses an useful part:
firstly, the method comprises the following steps: the surface of the toughened glass layer, which is in contact with the air, is an arc-shaped convex surface, so that the sunlight absorption area is increased in the same area;
secondly, the method comprises the following steps: a cavity is formed between the toughened glass layer and the cell group, and vacuum or inert gas is filled in the cavity to prevent sodium ions in the toughened glass layer from moving to the cell group, so that the PID effect can be effectively solved;
thirdly, the method comprises the following steps: the main battery piece group and the auxiliary battery piece group are arranged, the auxiliary battery piece is used for filling the blank regions between the main battery pieces, gaps between the main battery pieces are fully utilized, the effective power generation area is increased, and the output power of the solar cell panel is increased.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a cell stack structure.
In the figure: 1 is a toughened glass layer, 1.1 is a convex surface, 1.2 is a horizontal surface, 1.3 is a connecting part, 2 is a battery piece group, 2.1 is a main battery piece, 2.2 is a white space, 2.3 is an auxiliary battery piece, 3 is a back plate, 4 is a cavity, 5 is packaging glue, 6 is butyl glue, and 7 is an outer frame.
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.
The PID-resistant crystalline silicon solar cell module is provided with a toughened glass layer 1, a cell group 2 and a back plate 3 from top to bottom in sequence; one side of the toughened glass layer 1, which is contacted with air, is an arc-shaped convex surface 1.1, the other side of the toughened glass layer is a horizontal surface 1.2, a connecting part 1.3 is arranged on the outer edge of the toughened glass layer 1, the upper end of the connecting part 1.3 is horizontal, and the lower end of the connecting part is downward protruded; a cavity 4 is formed between the toughened glass layer 1 and the battery piece group 2; the battery piece group 2 comprises a main battery piece group and an auxiliary battery piece group, vacuum or inert gas is filled in the cavity 4, the battery piece group 2 is connected with the back plate 3 through packaging glue, the lower end of a connecting part 1.3 of the toughened glass layer 1 is hermetically connected with the back plate 3 through butyl glue 6, the toughened glass layer 1, the butyl glue 6 and the outer side wall of the back plate 3 wrap an outer frame 7, the main battery piece group comprises a plurality of main battery pieces 2.1 which are uniformly tiled in a rectangular shape, four corners of each main battery piece are chamfers, and a blank region 2.2 is formed at the chamfer of the upper main battery piece 2.1, the lower main battery piece is adjacent to the; the auxiliary battery piece group comprises a plurality of round or rectangular auxiliary battery pieces 2.3, and the auxiliary battery pieces 2.3 are arranged in the white space 2.2.
The packaging adhesive 5 in the assembly can be sponge adhesive or EVA packaging adhesive film.
The back plate 3 can be commonly used back plates such as TPT, TPE, KPK and the like in the current market, and can also be toughened glass to form a double-glass assembly.
The present invention is not limited to the PID-resistant crystalline silicon solar cell module according to the above-described embodiments, and various changes may be made by those skilled in the art, and any changes equivalent or similar to the present invention are intended to be encompassed by the scope of the present invention.
Claims (5)
1. Anti PID crystalline silicon solar cell module, its characterized in that: the toughened glass layer, the battery piece group and the back plate are sequentially arranged from top to bottom; one side of the toughened glass layer, which is in contact with air, is an arc-shaped convex surface, the other side of the toughened glass layer is a horizontal plane, a connecting part is arranged at the outer edge of the toughened glass layer, the upper end of the connecting part is horizontal, and the lower end of the connecting part protrudes downwards; a cavity is formed between the toughened glass layer and the cell group; the battery piece group comprises a main battery piece group and an auxiliary battery piece group.
2. The PID resistant crystalline silicon solar cell assembly of claim 1, wherein: the cavity is vacuum or filled with inert gas.
3. The PID resistant crystalline silicon solar cell assembly of claim 1, wherein: the battery piece group is connected with the back plate through packaging glue.
4. The PID resistant crystalline silicon solar cell assembly of claim 1, wherein: the lower end of the connecting part of the toughened glass layer is connected with the back plate in a sealing mode through butyl rubber, and the toughened glass layer, the butyl rubber and the outer side wall of the back plate wrap the outer frame.
5. The PID resistant crystalline silicon solar cell assembly of claim 1, wherein: the main battery sheet set comprises a plurality of main battery sheets which are evenly tiled and rectangular, four corners of each main battery sheet are chamfers, and blank regions are formed at the chamfers of the upper main battery sheet, the lower main battery sheet, the left main battery sheet and the right main battery sheet which are adjacent to each other; the auxiliary battery piece group comprises a plurality of round or rectangular auxiliary battery pieces, and the auxiliary battery pieces are arranged in the blank regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920666841.4U CN209859959U (en) | 2019-05-10 | 2019-05-10 | anti-PID crystalline silicon solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920666841.4U CN209859959U (en) | 2019-05-10 | 2019-05-10 | anti-PID crystalline silicon solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209859959U true CN209859959U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920666841.4U Expired - Fee Related CN209859959U (en) | 2019-05-10 | 2019-05-10 | anti-PID crystalline silicon solar cell module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203844A (en) * | 2021-11-11 | 2022-03-18 | 安徽亚珠金刚石股份有限公司 | Preparation method of solar panel containing nano diamond alkene protective film |
-
2019
- 2019-05-10 CN CN201920666841.4U patent/CN209859959U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203844A (en) * | 2021-11-11 | 2022-03-18 | 安徽亚珠金刚石股份有限公司 | Preparation method of solar panel containing nano diamond alkene protective film |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |