CN202695508U - Solar cell module - Google Patents
Solar cell module Download PDFInfo
- Publication number
- CN202695508U CN202695508U CN 201220282102 CN201220282102U CN202695508U CN 202695508 U CN202695508 U CN 202695508U CN 201220282102 CN201220282102 CN 201220282102 CN 201220282102 U CN201220282102 U CN 201220282102U CN 202695508 U CN202695508 U CN 202695508U
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- CN
- China
- Prior art keywords
- white
- solar module
- solar cell
- adhesive linkage
- cell module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02E10/52—PV systems with concentrators
Abstract
The utility model discloses a solar cell module. The solar cell module comprises a plurality of photovoltaic cells which are connected with one another, wherein the photovoltaic cells are arranged at intervals; an interval between two adjacent photovoltaic cells is defined as an interval part; the width of the interval part is between 2.5 mm and 4 mm; and according to the solar cell module, a light-reflecting structure is at least arranged below the interval part. The interval between the photovoltaic cells of a crystalline silicon solar cell module is widened, and solar rays are emitted to the light-reflecting structure below the interval part between the cells, reflected or scattered by the light-reflecting structure, and reflected from a glass panel on the front surface to the surface of cells in the solar cell module, so the power output of the solar cell module is improved.
Description
Technical field
The utility model relates to a kind of solar module, particularly the solar module widened of a kind of cell piece spacing.
Background technology
Along with the day by day exhaustion of global fossil energy resources, the human paces of the new alternative type energy of seeking are also in continuous quickening.Solar energy is human inexhaustible regenerative resource, also is the clean energy resource that does not produce any environmental pollution.In the middle of effective utilization of solar energy, large sun can solar photovoltaic utilization be research field with fastest developing speed in the last few years, most active, also is one of project that wherein attracts most attention.For this reason, people develop and have developed crystal-silicon solar cell, and its operation principle is to utilize photoelectric material to comprise monocrystalline silicon and polycrystalline silicon battery plate, and the photoelectron conversion reaction occurs behind the absorbing light energy.
At present crystalline silicon (comprising monocrystalline silicon and polysilicon) solar cell generally is as basic applying unit with the solar module that is in series by a plurality of crystalline silicon solar cell pieces in actual applications.The structure of existing solar module generally comprise by a plurality of crystalline silicon solar cell pieces be connected in series the solar cell piece group that forms, in order to sealing adhesive linkage, front light-transmitting substrate and the back substrate of sealing and protection solar cell piece, wherein, the sealing adhesive linkage comprises that front between solar cell piece and the front light-transmitting substrate seals the sealing backside adhesive linkage between adhesive linkage and solar cell piece and the back substrate; " front " of substrate and
The definition at " back side " defines by the sunlight plane of incidence, and sunlight is mainly penetrated on solar cell piece from the front light-transmitting substrate.The sealing adhesive linkage adopts EVAc (ethylene vinylacetate usually, EVA) material, the front light-transmitting substrate adopts toughened glass usually, back substrate adopts the TPT material usually, and, back substrate is designed to identical geomery with the front light-transmitting substrate, and the two has equal area.For increasing the mechanical strength of solar module, solar module also generally includes the aluminium alloy protecting border.In addition, for realizing the interconnection between the adjacent solar cell assembly, and the interconnection of solar module and external power source assembly, solar module also comprises terminal box, terminal box generally includes bypass diode, bypass diode be used for preventing a certain solar battery cell from damaging or when not generating electricity himself resistance is excessive causes heating to damage.
At present, when solar irradiation is mapped on the solar module, the part sunlight that shines crystalline silicon solar cell piece is effectively utilized because of generation current, the part sunlight that shines the slit between the crystalline silicon solar cell piece does not then obtain utilizing, and the ultraviolet ray in the sunlight also can damage sealing backside adhesive linkage and TPT backboard.
Summary of the invention
The utility model provides a kind of solar module.
For achieving the above object, the technical solution adopted in the utility model is: a kind of solar module, comprise a plurality of interconnective photovoltaic cells, and described photovoltaic cell interval arranges, spacing between the photovoltaic cell is defined as spacing section, and the width of this spacing section is 2.5～4 millimeters; Described solar module is provided with reflective structure at least below described spacing section.
In a preferred embodiment, the sealing backside adhesive linkage of described solar module is that white back sealing adhesive linkage consists of described reflective structure with this.
In a preferred embodiment, described white back sealing adhesive linkage adopts white EVA or white PVB.
In a preferred embodiment, the back substrate of described solar module is that the white back substrate consists of described reflective structure with this.
In a preferred embodiment, described white back substrate adopts white TPT or white glass.
Because technique scheme is used, the utility model compared with prior art has following advantages:
Because the spacing in the crystalline silicon solar cell modules between the photovoltaic cell is widened, thereby guarantee to keep certain distance between cell piece and the cell piece, prevent from being in contact with one another between the cell piece in the assembly, produce short circuit between the prevention cell piece.Spacing between the cell piece is widened in addition another one effect simultaneously, it is exactly so-called depth zero reflection effect, its principle is: light shines on the reflective structure (white back of the body tack coat or white backboard) of the spacing subordinate side between the cell piece, wherein a part of light is penetrated by reflective structure anti-(faling apart) and by the battery surface in the reverse assembly of the face glass of front surface, this can increase the power stage of assembly.
Description of drawings
Accompanying drawing 1 is the utility model schematic diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: a kind of solar module
Shown in accompanying drawing 1, a kind of solar module comprises a plurality of interconnective photovoltaic cells 3, and described photovoltaic cell 3 intervals arrange, and the spacing between the photovoltaic cell 3 is defined as spacing section, and the width of this spacing section is 2.5～4 millimeters; Described solar module is provided with reflective structure at least below described spacing section.
In a preferred embodiment, the sealing backside adhesive linkage 4 of described solar module consists of described reflective structure for white back sealing adhesive linkage with this.
In a preferred embodiment, described white back sealing adhesive linkage adopts white EVA or white PVB.
In a preferred embodiment, the back substrate of described solar module 5 consists of described reflective structure for the white back substrate with this.
In a preferred embodiment, described white back substrate adopts white TPT or white glass.
As shown in Figure 1, stack gradually together be front light-transmitting substrate (toughened glass or semi-tempered glass) 1, positive sealing adhesive linkage (such as common EVA) 2, a plurality of cell piece 3, sealing backside adhesive linkage (white EVA) 4, back substrate (toughened glass or semi-tempered glass) 5.
When light along front light-transmitting substrate (toughened glass or semi-tempered glass) 1, after positive sealing adhesive linkage (such as common EVA) 2 incides a plurality of solar cell pieces 3, part light still sees through the gap loss of 3 of solar cell pieces and falls, but because the utility model sealing backside adhesive linkage (white EVA) 4 has adopted reflective structure, as the reflective structure that adopts white EVA or white PVB to form, white back sealing adhesive linkage 4 just has reflex for light like this, this a part of light is gone back by various angle diffuse reflections, this light that is reflected sees through positive sealing adhesive linkage 2, after arriving front light-transmitting substrate 1, because the toughened glass that front light-transmitting substrate 1 adopts or the special pattern structure on semi-tempered glass surface can be with this light secondary reflections again, thereby make a part of light return the front of directive cell piece, make the cell piece can be with the light double absorption that reflects, improve the intensity of illumination on cell piece surface, improved the power output of assembly.
The utility model is increased to 2.5～4mm with the spacing of cell piece and adjacent cell sheet.Neither increase the overall dimension of assembly, thereby avoid because of the area that increases assembly so that the increase of assembly consumptive material raises the cost; Also want the interior energized conductor of Assurance component and assembly edge that rational distance is arranged, thereby satisfy under the condition of relevant criterion requirement, method with cell piece and adjacent cell sheet spacing in the change assembly, increase the effect of assembly depth zero reflection effect, finally reach the purpose that the power output that makes assembly is further enhanced because of cell piece in the assembly and the more rational spacing of adjacent cell sheet.1, it is can be in battery efficiency constant and do not increase in the situation of any cost to strengthen distance between cell piece and the adjacent cell sheet, improve the power output of assembly, conservative estimation approximately each assembly promotes 1～2W, to promote 1W, 10,000,000 about 2GW of assembly of annual production, power 10MW can be increased, in 1 dollar every watt, 10,000,000 dollars can be taken in 1 year more.2, the distance that strengthens between cell piece and the adjacent cell sheet can more effectively reduce battery generation fragment rate and the hidden rate of splitting.3, strengthening cell piece can more effectively reduce with distance between the adjacent cell sheet and produce the also possibility of sheet between the battery strings.4, the distance that strengthens between cell piece and the adjacent cell sheet can make the cost of assembly unit power decrease.
In a preferred embodiment, sealing backside adhesive linkage 4 is printing opacity, and back substrate 5 is white (such as white TPT or white toughened glass or semi-tempered glass).When the incident sunray arrives back substrate 5 like this, can be reflected to the front (principle of reflection as mentioned before) of solar cell piece 3.
In a preferred embodiment, only below the spacing section between solar cell piece and the solar cell piece, establish reflective structure, as being white at the sealing backside adhesive linkage 4 of this part or back substrate 5 only, or according to the polymer film of the spacing shape respective design frame shape of solar module, then when lamination, this polymer film is placed on spacing section below, the top of sealing backside tack coat 4.Sealing backside adhesive linkage 4 can be mixing so that sealing backside adhesive linkage 4 is white back sealing adhesive linkage by add whiteness (such as titanium dioxide) in material.Back substrate 5 can be by being coated with whitewash to make the white back substrate at toughened glass or semi-tempered glass.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (5)
1. a solar module comprises a plurality of interconnective photovoltaic cells, it is characterized in that: described photovoltaic cell interval arranges, and the spacing between the photovoltaic cell is defined as spacing section, and the width of this spacing section is 2.5～4 millimeters; Described solar module is provided with reflective structure at least below described spacing section.
2. solar module according to claim 1 is characterized in that: the sealing backside adhesive linkage of described solar module is that white back sealing adhesive linkage consists of described reflective structure with this.
3. solar module according to claim 2 is characterized in that: described white back sealing adhesive linkage adopts white EVA or white PVB.
4. solar module according to claim 1, it is characterized in that: the back substrate of described solar module is that the white back substrate consists of described reflective structure with this.
5. solar module according to claim 4, it is characterized in that: described white back substrate adopts white TPT or white glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282102 CN202695508U (en) | 2012-06-15 | 2012-06-15 | Solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220282102 CN202695508U (en) | 2012-06-15 | 2012-06-15 | Solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202695508U true CN202695508U (en) | 2013-01-23 |
Family
ID=47551080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220282102 Expired - Fee Related CN202695508U (en) | 2012-06-15 | 2012-06-15 | Solar cell module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202695508U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280481A (en) * | 2013-06-17 | 2013-09-04 | 奥特斯维能源（太仓）有限公司 | Transparent double-faced battery pack and preparation method thereof |
| CN103400885A (en) * | 2013-08-14 | 2013-11-20 | 英利集团有限公司 | Black solar battery component |
| CN107833936A (en) * | 2017-10-27 | 2018-03-23 | 英利能源（中国）有限公司 | Generating electricity on two sides photovoltaic module |
| CN108780822A (en) * | 2016-03-31 | 2018-11-09 | 松下知识产权经营株式会社 | Solar cell module |
-
2012
- 2012-06-15 CN CN 201220282102 patent/CN202695508U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280481A (en) * | 2013-06-17 | 2013-09-04 | 奥特斯维能源（太仓）有限公司 | Transparent double-faced battery pack and preparation method thereof |
| CN103280481B (en) * | 2013-06-17 | 2016-08-17 | 奥特斯维能源（太仓）有限公司 | A kind of transparent double face battery component and preparation method thereof |
| CN103400885A (en) * | 2013-08-14 | 2013-11-20 | 英利集团有限公司 | Black solar battery component |
| CN108780822A (en) * | 2016-03-31 | 2018-11-09 | 松下知识产权经营株式会社 | Solar cell module |
| CN108780822B (en) * | 2016-03-31 | 2021-10-08 | 松下知识产权经营株式会社 | Solar cell module |
| CN107833936A (en) * | 2017-10-27 | 2018-03-23 | 英利能源（中国）有限公司 | Generating electricity on two sides photovoltaic module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20210615 |