CN102709372A - Photovoltaic module - Google Patents
Photovoltaic module Download PDFInfo
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- CN102709372A CN102709372A CN2012101945555A CN201210194555A CN102709372A CN 102709372 A CN102709372 A CN 102709372A CN 2012101945555 A CN2012101945555 A CN 2012101945555A CN 201210194555 A CN201210194555 A CN 201210194555A CN 102709372 A CN102709372 A CN 102709372A
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- solar cell
- cell string
- assembly
- terminal box
- solar 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
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Abstract
The invention discloses a photovoltaic module, which comprises n solar battery sets, wherein the solar battery sets are arranged in the same direction, each solar battery set comprises two solar battery strings and a junction box; two solar battery strings which are located in the same solar battery set are connected to a first end of the solar battery set, two solar battery strings which are located in different solar battery sets are connected to a second end of t he solar battery set, the junction box is arranged on the second end of the solar battery set and is connected with the two solar battery strings which are located in the same solar battery set, and the junction boxes are mutually connected with one another in serial; and the n is a positive integer more than 2. Due to the adoption of the photovoltaic module, a convergence strip needed for collectively joining the solar battery sets into the intermediate junction box can be saved, the transmission path of the current can be reduced, so that the transmission loss of the power can be reduced, and the power supply efficiency of the photovoltaic module can be improved.
Description
Technical field
The invention belongs to field of photovoltaic power generation, relate in particular to a kind of photovoltaic module.
Background technology
In recent years, the solar battery sheet production technology is constantly progressive, and production cost constantly reduces, and conversion efficiency improves constantly, and makes the application of photovoltaic generation popularize day by day and fast development, becomes the important source of supply of electric power gradually.Solar battery sheet can be transform light energy an electric energy under the irradiation of sunlight, realizes photovoltaic generation.
The production technology more complicated of solar battery sheet, in brief, the production process of present solar battery sheet mainly comprises: making herbs into wool, diffusion, etching, plated film, printing and sintering etc.When the solar battery sheet practical application, need a large amount of solar battery sheets is coupled together into the solar cell string, through encapsulation; Thereto forms photovoltaic module then, and the terminal box of said photovoltaic module is the interface of outside output voltage; The connected mode of existing solar cell string and terminal box is as shown in Figure 1; A plurality of solar cell strings 1 are arranged in order, and per two battery strings serial connection is a battery strings, in group 10; The positive output end of said battery strings group 10 and negative output terminal are all concentrated and are linked into the terminal box 2 that is positioned at the assembly centre position; In terminal box 2, draw positive and negative two leads then, when the matrix that carries out the power station was installed, said photovoltaic module was connected with other photovoltaic module by said positive and negative two leads.
Because the efficient of existing solar battery sheet is difficult to have bigger lifting again; Therefore; Under the certain situation of solar battery sheet efficient; In order to improve the power supplying efficiency of photovoltaic module, the current supply loss that reduces photovoltaic module has become first-selection, so how to reduce the important development direction that the current supply loss of photovoltaic module is existing field of photovoltaic power generation.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of photovoltaic module, to reduce the current supply loss of existing photovoltaic module.
This photovoltaic module comprises:
N solar cell string group, said n solar cell string group arranged along same direction, and each solar cell string group comprises two string solar cell string and terminal boxes;
The two string solar cell strings that are positioned at same solar cell string group are connected to first end of said solar cell string group; Be positioned at second end that different battery strings groups and two adjacent string solar cell polyphones are connected to said solar cell string group; Said terminal box is arranged on second end of said solar cell string group; And be connected, and be connected in series each other between n terminal box with the two string solar cell strings that are positioned at same solar cell string group;
Wherein, n is the positive integer greater than 2.
Preferably, be provided with a bypass diode in each terminal box.
Preferably, each bypass diode is serially connected between the two string solar cell strings that belong to same solar cell string group.
Preferably, said solar cell string comprises a plurality of solar battery sheets that are serially connected.
Preferably, two terminal boxes that are positioned at said assembly two ends pick out two cables, draw lead as the both positive and negative polarity of said assembly respectively.
Preferably, said assembly also comprises:
Surfacecti proteon substrate, said solar cell string are laid on the said surfacecti proteon substrate surface;
Backboard, said backboard cover on the said solar cell string list face, pass through the packaging plastic involution with said surfacecti proteon substrate.
Preferably, said terminal box is arranged on said surfacecti proteon substrate and deviates from the one side of said solar cell string.
Preferably, said surfacecti proteon substrate is provided with the wiring opening, the corresponding setting with said terminal box of said wiring opening.
Preferably, said terminal box is connected with said solar cell string through said wiring opening.
Preferably, said n is 3.
Because photovoltaic module provided by the present invention comprises: n solar cell string group, said n solar cell string group arranged along same direction, and each solar cell string group comprises two string solar cell string and terminal boxes; The two string solar cell strings that are positioned at same solar cell string group are connected to first end of said solar cell string group; Be positioned at second end that different battery strings groups and two adjacent string solar cell polyphones are connected to said solar cell string group; Said terminal box is arranged on second end of said solar cell string group; And be connected, and be connected in series each other between n terminal box with the two string solar cell strings that are positioned at same solar cell string group; Wherein, n is the positive integer greater than 2.It is thus clear that; Therefore terminal box in the middle of each solar cell string group no longer need be concentrated and be linked into can save each solar cell string group and concentrate the needed band that confluxes of terminal box in the middle of being linked into, and reduces the path of current delivery; And then the loss that reduces to transmit electricity, the power supplying efficiency of raising photovoltaic module.
In addition; Photovoltaic module provided by the present invention is with when other photovoltaic modulies are connected; Because photovoltaic module provided by the present invention can pick out the transmission of electricity cable in the terminal box that is positioned at two ends; Therefore can save the part cable that existing photovoltaic module is picked out to two ends by halfway junction box, and then practice thrift cost of manufacture.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing a kind of photovoltaic module structure sketch map;
Fig. 2 is a kind of photovoltaic module structure sketch map provided by the present invention;
Fig. 3 is an another kind of photovoltaic module structure sketch map provided by the present invention;
Fig. 4 is the structural representation of facing of another photovoltaic module provided by the present invention;
Fig. 5 is the back of the body TV structure sketch map of another photovoltaic module provided by the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Said as background technology, the transmission losses that how to reduce photovoltaic module is an important directions of existing solar cell development.
The inventor finds after deliberation, can reduce the use of the band that confluxes and then reduce the transmission losses that has photovoltaic module now through adding the mode of terminal box, improves the power supplying efficiency of photovoltaic module.
The invention discloses a kind of photovoltaic module, comprising: n solar cell string group, said n solar cell string group arranged along same direction, and each solar cell string group comprises two string solar cell string and terminal boxes;
The two string solar cell strings that are positioned at same solar cell string group are connected to first end of said solar cell string group; Be positioned at second end that different battery strings groups and two adjacent string solar cell polyphones are connected to said solar cell string group; Said terminal box is arranged on second end of said solar cell string group; And be connected, and be connected in series each other between n terminal box with the two string solar cell strings that are positioned at same solar cell string group;
Wherein, n is the positive integer greater than 2.
Can find out by such scheme; Because the terminal box in the middle of each solar cell string group of photovoltaic module provided by the present invention no longer need be concentrated and be linked into; Therefore can save each solar cell string group and concentrate the needed band that confluxes of terminal box in the middle of being linked into; Reduce the path of current delivery, so the loss that reduces to transmit electricity, the power supplying efficiency of raising photovoltaic module.
It more than is the application's core concept; To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention carried out clear, intactly description, obviously; Described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
A lot of details have been set forth in the following description so that make much of the present invention; But the present invention can also adopt other to be different from alternate manner described here and implement; Those skilled in the art can do similar popularization under the situation of intension of the present invention, so the present invention does not receive the restriction of following disclosed specific embodiment.
The embodiment of the invention discloses a kind of photovoltaic module; As shown in Figure 2; Comprise: n solar cell string group; Said n solar cell string group arranged along same direction, is followed successively by the first solar cell string group 101, the second solar cell string group 102, the 3rd solar cell string group 103 ... N solar cell string group 10n, each solar cell string group comprises two string solar cell string 100 and terminal boxes; Wherein, said solar cell string 100 comprises a plurality of solar battery sheets that are serially connected;
And; The two string solar cell strings 100 that are positioned at same solar cell string group are connected to first end of said solar cell string group; Be positioned at second end that different battery strings groups and two adjacent string solar cell strings 100 are connected in said solar cell string group; Be that 2n string solar cell string 100 is end to end, said terminal box is arranged on second end of said solar cell string group, and is connected with the two string solar cell strings that are positioned at same solar cell string group; And be connected in series each other between n the terminal box; Corresponding with telling solar cell string group, respectively be first terminal box 201, second terminal box 202, the 3rd terminal box 203 ... N terminal box 20n states between solar battery sheet, solar cell string, solar cell string group and the terminal box all through the band connection of confluxing.
In addition; Two terminal boxes that are positioned at said assembly two ends pick out two cables; Draw lead as the both positive and negative polarity of said assembly respectively; Promptly pick out article one cable L1 and draw lead as the positive pole of said photovoltaic module at said first terminal box 201 places; Pick out second cable L2 at said n terminal box 20n place and draw lead, when the matrix that carries out the power station is installed, be connected with second cable L2 through article one cable L1 between said photovoltaic module and other photovoltaic modulies as the negative pole of said photovoltaic module.
And; When the irradiation following time of solar battery sheet at high light; Some solar cells can sheet be blocked by other objects and becomes load; Impaired in order to prevent the serious heating of these solar battery sheets that become load, then in each terminal box, be provided with a bypass diode, said bypass diode is serially connected between the two string solar cell strings that belong to same solar cell string group.
Need to prove that said n is the positive integer greater than 2, and is as shown in Figure 3, preferred n is 3, and promptly said photovoltaic module comprises 3 solar cell string groups, 6 string solar cell strings, 3 terminal boxes.In addition, said n can also be 4, and promptly said photovoltaic module comprises 4 solar cell string groups, 8 string solar cell strings, 4 terminal boxes, and perhaps n is 5,6 or 7, that is, the concrete value of n is fixed according to actual conditions, does not do concrete qualification at this.
Because the terminal box in the middle of each solar cell string group of photovoltaic module provided by the present invention no longer need be concentrated and be linked into; Therefore can save each solar cell string group and concentrate the needed band that confluxes of terminal box in the middle of being linked into; Reduce the path of current delivery; And then the loss that reduces to transmit electricity, the power supplying efficiency of raising photovoltaic module.
And; Photovoltaic module provided by the present invention is with when other photovoltaic modulies are connected; Because photovoltaic module provided by the present invention can pick out article one cable in first terminal box that is positioned at an end, pick out the second cable at the n terminal box place that is positioned at the other end respectively as the positive and negative lead of drawing of photovoltaic module; Be connected with the second cable through said article one cable between said photovoltaic module and other photovoltaic modulies; Can save the cable that existing photovoltaic module is picked out to two ends by halfway junction box, and then practice thrift cost of manufacture.
In addition, like Fig. 4 and shown in Figure 5, said assembly also comprises:
Surfacecti proteon substrate 110, said solar cell string are laid on said surfacecti proteon substrate 110 surfaces, and said surfacecti proteon substrate 110 is transparent substrate, are preferably toughened glass,
A said n terminal box is arranged on the one side that said backboard 111 deviates from said solar cell string group.
Concrete, said backboard 111 is provided with the wiring opening, the corresponding setting of said wiring opening with said terminal box, and said terminal box is connected with said solar cell string group through said wiring opening.
The manufacture method of a kind of photovoltaic module of another embodiment of the present invention comprises:
Step S1, the surfacecti proteon substrate is provided, said surfacecti proteon substrate is a transparency carrier, is preferably reinforced glass substrate.
Step S2, lay packaging plastic on the surface of surfacecti proteon substrate, said packaging plastic is preferably EVA (Ethylene-Vinyl Acetate copolymer, ethylene-vinyl acetate copolymer) glue.
Step S4, on packaging plastic, lay 2n string solar cell string; Said 2n string solar cell string belongs to n solar cell string group respectively; Belong to first end that two interior string solar cell strings of same solar cell string group are connected to said solar cell string group; Belong to second end that different battery strings groups and two adjacent string solar cell polyphones are connected to said solar cell string group, promptly said 2n string solar cell string is end to end, and wherein said n is the positive integer greater than 2.
Step S5, on said 2n string solar cell string, lay packaging plastic, said packaging plastic is preferably EVA glue.
Step S6, on packaging plastic, lay backboard, said backboard is TPT (Tedlar PET Tedlar, a polyvinyl fluoride composite membrane) backboard, has insulation, waterproof, corrosion resistant characteristic.
Step S7, above-mentioned packaged assembly is placed in the laminating machine, vacuumize heating.
Step S8, increase aluminum alloy frame, and form the wiring opening in the position that said backboard pre-sets terminal box at said assembly periphery.
Step 9, terminal box is provided; Comprise a bypass diode in the said terminal box; And through said wiring opening said terminal box is connected with said solar cell string, and said terminal box specifically is arranged on second end of said solar cell string group, and be connected with the two string solar cell strings that are positioned at same solar cell string group; And be connected in series each other between n the terminal box, finally form photovoltaic module.
It is thus clear that; Terminal box in the middle of each solar cell string group of said photovoltaic module need not concentrated and be linked into; Therefore can save each solar cell string group and concentrate the needed band that confluxes of terminal box in the middle of being linked into; Reduce the path of current delivery, so the loss that reduces to transmit electricity, the power supplying efficiency of raising photovoltaic module.
Various piece adopts the mode of going forward one by one to describe in this specification, and what each part stressed all is and the difference of other parts that identical similar part is mutually referring to getting final product between the various piece.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to embodiment illustrated herein, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a photovoltaic module is characterized in that, comprising:
N solar cell string group, said n solar cell string group arranged along same direction, and each solar cell string group comprises two string solar cell string and terminal boxes;
The two string solar cell strings that are positioned at same solar cell string group are connected to first end of said solar cell string group; Be positioned at second end that different battery strings groups and two adjacent string solar cell polyphones are connected to said solar cell string group; Said terminal box is arranged on second end of said solar cell string group; And be connected, and be connected in series each other between n terminal box with the two string solar cell strings that are positioned at same solar cell string group;
Wherein, n is the positive integer greater than 2.
2. according to the said assembly of claim 1, it is characterized in that, be provided with a bypass diode in each terminal box.
3. according to the said assembly of claim 2, it is characterized in that each bypass diode is serially connected between the two string solar cell strings that belong to same solar cell string group.
4. according to the said assembly of claim 3, it is characterized in that said solar cell string comprises a plurality of solar battery sheets that are serially connected.
5. according to the said assembly of claim 4, it is characterized in that two terminal boxes that are positioned at said assembly two ends pick out two cables, draw lead as the both positive and negative polarity of said assembly respectively.
6. according to the said assembly of claim 5, it is characterized in that said assembly also comprises:
Surfacecti proteon substrate, said solar cell string are laid on the said surfacecti proteon substrate surface;
Backboard, said backboard cover on the said solar cell string list face, pass through the packaging plastic involution with said surfacecti proteon substrate.
7. according to the said assembly of claim 6, it is characterized in that said terminal box is arranged on said surfacecti proteon substrate and deviates from the one side of said solar cell string.
8. according to the said assembly of claim 7, it is characterized in that said surfacecti proteon substrate is provided with the wiring opening, the corresponding setting of said wiring opening with said terminal box.
9. said according to Claim 8 assembly is characterized in that, said terminal box is connected with said solar cell string through said wiring opening.
10. according to the said assembly of claim 1, it is characterized in that said n is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194555.5A CN102709372B (en) | 2012-06-13 | 2012-06-13 | Photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210194555.5A CN102709372B (en) | 2012-06-13 | 2012-06-13 | Photovoltaic module |
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| CN102709372A true CN102709372A (en) | 2012-10-03 |
| CN102709372B CN102709372B (en) | 2015-07-08 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050562A (en) * | 2012-12-07 | 2013-04-17 | 常州大学 | Material-saving and consumption-reducing photovoltaic component |
| CN103066144A (en) * | 2012-12-25 | 2013-04-24 | 英利能源（中国）有限公司 | Solar cell module and novel leading wire mode thereof |
| CN103618370A (en) * | 2013-11-11 | 2014-03-05 | 成都市晶林电子技术有限公司 | Forest fire prevention solar power supply system |
| CN105576055A (en) * | 2016-02-24 | 2016-05-11 | 常州亚玛顿股份有限公司 | Double-glass light transmission assembly |
| CN105850034A (en) * | 2013-12-27 | 2016-08-10 | 松下知识产权经营株式会社 | Solar cell module |
| CN106788218A (en) * | 2016-12-28 | 2017-05-31 | 南通美能得新能源科技股份有限公司 | A kind of many terminal box solar components |
| CN108649089A (en) * | 2018-06-20 | 2018-10-12 | 苏州阿特斯阳光电力科技有限公司 | The manufacturing method of photovoltaic module and its interior battery strings |
| WO2020014861A1 (en) * | 2018-07-17 | 2020-01-23 | 浙江英达威芯电子有限公司 | Photovoltaic system and photovoltaic module thereof |
| CN111129167A (en) * | 2018-10-31 | 2020-05-08 | 湖南红太阳新能源科技有限公司 | Novel single-glass photovoltaic module |
| US10749060B2 (en) | 2013-07-05 | 2020-08-18 | Rec Solar Pte. Ltd. | Solar cell assembly |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050562A (en) * | 2012-12-07 | 2013-04-17 | 常州大学 | Material-saving and consumption-reducing photovoltaic component |
| CN103066144A (en) * | 2012-12-25 | 2013-04-24 | 英利能源（中国）有限公司 | Solar cell module and novel leading wire mode thereof |
| CN103066144B (en) * | 2012-12-25 | 2015-06-10 | 英利能源（中国）有限公司 | Solar cell module and novel leading wire mode thereof |
| US10749060B2 (en) | 2013-07-05 | 2020-08-18 | Rec Solar Pte. Ltd. | Solar cell assembly |
| CN103618370A (en) * | 2013-11-11 | 2014-03-05 | 成都市晶林电子技术有限公司 | Forest fire prevention solar power supply system |
| CN105850034A (en) * | 2013-12-27 | 2016-08-10 | 松下知识产权经营株式会社 | Solar cell module |
| CN105576055A (en) * | 2016-02-24 | 2016-05-11 | 常州亚玛顿股份有限公司 | Double-glass light transmission assembly |
| CN106788218A (en) * | 2016-12-28 | 2017-05-31 | 南通美能得新能源科技股份有限公司 | A kind of many terminal box solar components |
| CN108649089A (en) * | 2018-06-20 | 2018-10-12 | 苏州阿特斯阳光电力科技有限公司 | The manufacturing method of photovoltaic module and its interior battery strings |
| WO2020014861A1 (en) * | 2018-07-17 | 2020-01-23 | 浙江英达威芯电子有限公司 | Photovoltaic system and photovoltaic module thereof |
| CN111129167A (en) * | 2018-10-31 | 2020-05-08 | 湖南红太阳新能源科技有限公司 | Novel single-glass photovoltaic module |
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| CN102709372B (en) | 2015-07-08 |
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