CN103337540B - A kind of photovoltaic module - Google Patents
A kind of photovoltaic module Download PDFInfo
- Publication number
- CN103337540B CN103337540B CN201310268765.9A CN201310268765A CN103337540B CN 103337540 B CN103337540 B CN 103337540B CN 201310268765 A CN201310268765 A CN 201310268765A CN 103337540 B CN103337540 B CN 103337540B
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- China
- Prior art keywords
- wire
- bypass diode
- backboard
- photovoltaic module
- insulation
- 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
Links
- 238000009413 insulation Methods 0.000 claims abstract description 58
- 239000004020 conductor Substances 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 125000001153 fluoro group Chemical group F* 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 8
- 239000005020 polyethylene terephthalate Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000004078 waterproofing Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 150000001875 compounds Chemical group 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of photovoltaic module, this photovoltaic module comprises: the backboard be oppositely arranged and cover plate, described backboard is provided with lead-out wire through hole; Be fixed on the multiple battery strings be connected in series between described backboard with described cover plate, the lead-out wire of the battery strings of described multiple serial connection comprises: positive wire, cathode conductor and bypass diode wire, described positive wire, cathode conductor and bypass diode wire mutually insulated; Wherein, described backboard comprises: substrate, and the surface of described substrate described battery strings side is dorsad provided with watertight insulation; Be arranged on the laminated bonding layer of described substrate towards described battery strings side; Be arranged on the peripheral protective layer of described watertight insulation described battery strings side dorsad.Described photovoltaic module adopts the composite back plate with sandwich construction, and is provided with watertight insulation in backboard, and improve the water resistance of assembly, assembly not moisture-sensitive is aging, and useful life is longer.
Description
Technical field
The present invention relates to technical field of solar batteries, more particularly, relate to a kind of photovoltaic module.
Background technology
Solar cell is the semiconductor device that a kind of luminous energy by the sun is converted into electric energy.Because it is Green Product, can not cause environmental pollution, and utilization is renewable resource, so under current energy starved situation, solar cell is a kind of novel energy having broad based growth future.
Because the solar cell power output of monolithic is less, and itself easily broken, be easily corroded, therefore, be generally that multiple solar cell string just can be come into operation through being encapsulated as the photovoltaic module with larger power output.
Existing photovoltaic module generally comprises: the backboard be oppositely arranged and cover plate, is fixed on the multiple battery strings be connected in series between described backboard with described cover plate.The backboard of existing photovoltaic module generally adopts PET(Polyethyleneterephthalate, polyethylene terephthalate) plate, be provided with the protective layer of anti-mechanical wear to the surface of the side of battery strings at described PET backboard.
Existing photovoltaic module, the water proofing property of backboard is poor, and assembly easily makes moist aging, and useful life is shorter.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of photovoltaic module, the backboard good waterproof performance of described photovoltaic module, assembly not moisture-sensitive is aging, and useful life is longer.
For achieving the above object, the invention provides following technical scheme:
A kind of photovoltaic module, this photovoltaic module comprises:
The backboard be oppositely arranged and cover plate, described backboard is provided with lead-out wire through hole;
Be fixed on the multiple battery strings be connected in series between described backboard with described cover plate, the lead-out wire of the battery strings of described multiple serial connection comprises: positive wire, cathode conductor and bypass diode wire, described positive wire, cathode conductor and bypass diode wire mutually insulated;
Wherein, described backboard comprises: substrate, and the surface of described substrate described battery strings side is dorsad provided with watertight insulation; Be arranged on the laminated bonding layer of described substrate towards described battery strings side; Be arranged on the peripheral protective layer of described watertight insulation described battery strings side dorsad.
Preferably, in above-mentioned photovoltaic module, described watertight insulation is metallic film.
Preferably, in above-mentioned photovoltaic module, it is characterized in that, described watertight insulation is aluminum foil film.
Preferably, in above-mentioned photovoltaic module, described positive wire, cathode conductor and bypass diode wire are convergent belt, and wherein, the overlapping place of convergent belt and convergent belt is separated by the lath that insulate.
Preferably, in above-mentioned photovoltaic module, also comprise the positive wire insulation collar, the cathode conductor insulation collar and the bypass diode wire insulation collar that are arranged in described lead-out wire through hole;
Wherein, described positive wire is drawn by the described positive wire insulation collar; Described cathode conductor is drawn by the described cathode conductor insulation collar; Described bypass diode wire is drawn by the described bypass diode wire insulation collar; The described bypass diode wire insulation collar and described bypass diode wire one_to_one corresponding.
Preferably, in above-mentioned photovoltaic module, described positive wire, cathode conductor and bypass diode wire are the convergent belt being provided with insulation crust.
Preferably, in above-mentioned photovoltaic module, described substrate is PET plate.
Preferably, in above-mentioned photovoltaic module, described peripheral protective layer is fluorine film or weather-proof PET plate.
As can be seen from technique scheme, photovoltaic module provided by the present invention comprises: the backboard be oppositely arranged and cover plate, described backboard is provided with lead-out wire through hole; Be fixed on the multiple battery strings be connected in series between described backboard with described cover plate, the lead-out wire of the battery of described multiple serial connection comprises: positive wire, cathode conductor and bypass diode wire, described positive wire, cathode conductor and bypass diode wire mutually insulated; Wherein, described backboard comprises: substrate, and the surface of described substrate described battery strings side is dorsad provided with watertight insulation; Be arranged on the laminated bonding layer of described substrate towards described battery strings side; Be arranged on the peripheral protective layer of described substrate described battery strings side dorsad.Described photovoltaic module adopts the composite back plate with sandwich construction, and is provided with watertight insulation in backboard, and improve the water resistance of assembly, assembly not moisture-sensitive is aging, and useful life is longer.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of photovoltaic module that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the structural representation of the backboard of a kind of photovoltaic module provided by the invention;
Fig. 3 is the structural representation of the backboard of another kind of photovoltaic module provided by the invention;
The structural representation that a kind of battery strings that Fig. 4 provides for the embodiment of the present invention is connected in series with battery strings;
Fig. 5 is the partial enlarged drawing of a-quadrant in Fig. 4;
Fig. 6 a kind ofly realizes the structural representation that in Fig. 4, insulate in convergent belt and the overlapping place of convergent belt;
Fig. 7 is the structural representation that another kind realizes that in Fig. 4, insulate in convergent belt and the overlapping place of convergent belt.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of photovoltaic module that the embodiment of the present application provides, with reference to figure 1, this photovoltaic module comprises: the cover plate 101 and the backboard 105 that are oppositely arranged; Be fixed on described cover plate 101 and the multiple battery strings 103 be connected in series between backboard 105.
Wherein, the battery strings 103 of described multiple serial connection bonds fixing by upper strata EVA102 and described cover plate 101, and is fixed by described lower floor EVA104 and described backboard 105.When carrying out encapsulation operation, the battery strings 103 of backboard 105, lower floor EVA104, multiple serial connection, upper strata EVA102 and cover plate 101 are stacked gradually and puts into laminating machine, by vacuumizing process, extract the air in assembly out, then heating makes EVA fusing the battery strings 103 be mutually connected in series, glass cover-plate 101 and backboard 105 be bonded together, after cooling is fixing, then processed into the encapsulation of assembly by deburring, periphery encapsulation etc.
With reference to figure 2, described backboard 105 comprises the laminated bonding layer 201, tack coat 202, substrate 203, tack coat 204 and the peripheral protective layer 205 that set gradually.Laminated bonding layer 201 and substrate 203 bond fixing by tack coat 202, and substrate 203 and peripheral protective layer 205 bond fixing by tack coat 204.
Described backboard 105 is provided with lead-out wire through hole, not shown in Fig. 2.Described lead-out wire is for drawing the positive wire of photovoltaic module, cathode conductor and bypass diode wire.
Described substrate 203 can adopt mechanical strength better and the PET plate that quality is lighter.Described peripheral protective layer can adopt corrosion-resistant and anti abrasive fluoro-containing plastic layer, and described fluoro-containing plastic layer can be Kynoar.Also can adopt through weather resistant PET plate that is anticorrosive, process of resistance to wearing to reduce costs.
Described laminated bonding layer 201 can make this backboard and lower floor EVA bond firmly, thus this backboard is more easily combined with lower floor EVA104, thus photovoltaic component back plate is bondd more firm.
Described backboard is multi-layer compound structure backboard, has good mechanical strength and wear-resistant, corrosion resistance.Enhance mechanical strength and mar proof, the corrosion resistance of photovoltaic module.
Although its multi-layer compound structure has certain water proofing property, but still be apparent not enough the photovoltaic module of outside work concerning long-term, in order to improve the water resistance of photovoltaic module further, on the basis of backboard shown in Fig. 2, present embodiments provide a kind of backboard with special watertight insulation.As shown in Figure 3, one deck watertight insulation 301 is set on the surface of described substrate 203 battery strings side dorsad, the water proofing property of backboard can be increased, and then increase the water proofing property of photovoltaic module, avoid assembly to make moist aging, effectively can improve the useful life of assembly.
Described watertight insulation 301 can be metallic film.On the surface of described substrate 203 battery strings side dorsad, the metallic film of setting thickness is formed by coating process, or by the surface bonding layer of metal film of attaching process in described substrate 203 battery strings side dorsad.Preferably, can adopt water proofing property better, price aluminum foil film is inexpensively as described watertight insulation.
The lead-out wire of the battery strings after multiple serial connection comprises: positive wire, cathode conductor and bypass diode wire.For the battery strings that 6 are connected in series mutually, need two bypass diode wires.With reference to figure 4 and Fig. 5, for the photovoltaic module comprising 6 battery strings, lead-out wire comprises: positive wire 501, cathode conductor 502, bypass diode wire 503 and bypass diode wire 504.
It should be noted that described positive wire 501, cathode conductor 502, bypass diode wire 503 and bypass diode wire 504 all can adopt identical connection wire, its pattern difference is just for the ease of illustrating.
Positive wire 501 described in the present embodiment, cathode conductor 502, bypass diode wire 503 and bypass diode wire 504 all can adopt convergent belt.But convergent belt is plain conductor, if mutually overlapping, namely can be short-circuited, with reference to figure 6, in order to realize positive wire 501, cathode conductor 502, bypass diode wire 503 and bypass diode wire 504 insulation each other, need to adopt insulation lath 601 to cover the lateral part of bypass diode wire 503 and bypass diode wire 504, and the vertical portion that opening 603 draws bypass diode wire 503 and bypass diode wire 504 is set at described insulation lath 601.In order to position insulation lath 601, need to adopt adhesive tape 602 to be fixed it.
If adopt convergent belt as positive wire 501, cathode conductor 502, bypass diode wire 503 and bypass diode wire 504, owing to being provided with metallic film in backboard as watertight insulation, so cause short circuit by all contacting with described metallic film during described lead-out wire through hole in order to avoid described positive wire 501, cathode conductor 502, bypass diode wire 503 and bypass diode wire 504, need in described lead-out wire through hole, arrange the positive wire insulation collar, the cathode conductor insulation collar and the bypass diode wire insulation collar.
Wherein, described positive wire is drawn by the described positive wire insulation collar.Described cathode conductor is drawn by the described cathode conductor insulation collar.Described bypass diode wire is drawn by the described bypass diode wire insulation collar.The described bypass diode wire insulation collar and described bypass diode wire one_to_one corresponding, namely a bypass diode wire is drawn separately through a bypass diode wire insulation collar, avoids being short-circuited between bypass diode wire and bypass diode wire.
Although employing insulation lath and each insulation collar can realize the insulation between each convergent belt, but insulation lath places and position fixedly adds technology difficulty, and each insulate, bubble-tight in described lead-out wire through hole to arrange technology difficulty also larger for collar.
In order to reduce above-mentioned technology difficulty, with reference to figure 7, described positive wire 501, cathode conductor 502, bypass diode wire 503 and bypass diode wire 504 all adopt the convergent belt being provided with insulation crust 701.Adopt the convergent belt being provided with insulation crust 701 as positive wire 501, cathode conductor 502, bypass diode wire 503 and bypass diode wire 504, just can realize the insulation between each wire without the need to insulate lath and multiple insulation collar, reduce technology difficulty during encapsulation.
Known by foregoing description, the photovoltaic module that the embodiment of the present invention provides, backboard has watertight insulation, improves the water resistance of assembly, and assembly not moisture-sensitive is aging, and useful life is longer.And solve the Insulation Problems of lead-out wire lap-joint.When adopting metallic film as described watertight insulation, solve the Insulation Problems of lead-out wire and metallic film.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a photovoltaic module, is characterized in that, comprising:
The backboard be oppositely arranged and cover plate, described backboard is provided with lead-out wire through hole;
Be fixed on the multiple battery strings be connected in series between described backboard with described cover plate, the lead-out wire of the battery strings of described multiple serial connection comprises: positive wire, cathode conductor and bypass diode wire, described positive wire, cathode conductor and bypass diode wire mutually insulated;
Wherein, described backboard comprises: substrate, and the surface of described substrate described battery strings side is dorsad provided with watertight insulation; Be arranged on the laminated bonding layer of described substrate towards described battery strings side; Be arranged on the peripheral protective layer of described watertight insulation described battery strings side dorsad;
Described watertight insulation is metallic film;
Described positive wire, cathode conductor and bypass diode wire are convergent belt, and wherein, the overlapping place of convergent belt and convergent belt is separated by the lath that insulate;
Or described positive wire, cathode conductor and bypass diode wire are the convergent belt being provided with insulation crust.
2. photovoltaic module according to claim 1, is characterized in that, described watertight insulation is aluminum foil film.
3. photovoltaic module according to claim 1, is characterized in that, also comprises the positive wire insulation collar, the cathode conductor insulation collar and the bypass diode wire insulation collar that are arranged in described lead-out wire through hole;
Wherein, described positive wire is drawn by the described positive wire insulation collar; Described cathode conductor is drawn by the described cathode conductor insulation collar; Described bypass diode wire is drawn by the described bypass diode wire insulation collar; The described bypass diode wire insulation collar and described bypass diode wire one_to_one corresponding.
4. photovoltaic module according to claim 1, is characterized in that, described substrate is PET plate.
5. photovoltaic module according to claim 1, is characterized in that, described peripheral protective layer is fluoro-containing plastic layer or weather resistant PET plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268765.9A CN103337540B (en) | 2013-06-28 | 2013-06-28 | A kind of photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268765.9A CN103337540B (en) | 2013-06-28 | 2013-06-28 | A kind of photovoltaic module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103337540A CN103337540A (en) | 2013-10-02 |
| CN103337540B true CN103337540B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310268765.9A Expired - Fee Related CN103337540B (en) | 2013-06-28 | 2013-06-28 | A kind of photovoltaic module |
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| Country | Link |
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| CN (1) | CN103337540B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9577134B2 (en) * | 2013-12-09 | 2017-02-21 | Sunpower Corporation | Solar cell emitter region fabrication using self-aligned implant and cap |
| CN110233185A (en) * | 2019-07-17 | 2019-09-13 | 张子童 | A kind of solar battery board machining process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407639A (en) * | 2011-07-29 | 2012-04-11 | 明基材料有限公司 | Solar battery module as well as back plate structure and manufacturing method thereof |
| CN102769061A (en) * | 2012-08-08 | 2012-11-07 | 英利能源（中国）有限公司 | Current-collecting strip lead terminal of photovoltaic module and insulating treatment method of current-collecting strip lead terminal |
| CN202712231U (en) * | 2012-08-17 | 2013-01-30 | 英利能源（中国）有限公司 | Photovoltaic assembly |
-
2013
- 2013-06-28 CN CN201310268765.9A patent/CN103337540B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407639A (en) * | 2011-07-29 | 2012-04-11 | 明基材料有限公司 | Solar battery module as well as back plate structure and manufacturing method thereof |
| CN102769061A (en) * | 2012-08-08 | 2012-11-07 | 英利能源（中国）有限公司 | Current-collecting strip lead terminal of photovoltaic module and insulating treatment method of current-collecting strip lead terminal |
| CN202712231U (en) * | 2012-08-17 | 2013-01-30 | 英利能源（中国）有限公司 | Photovoltaic assembly |
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| CN103337540A (en) | 2013-10-02 |
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Effective date of registration: 20180411 Address after: 071051 Fuxing Middle Road, Hebei, Baoding, No. 3055 Patentee after: YINGLI PHOTOVOLTAIC ELECTRIC POWER INVESTMENT GROUP CO.,LTD. Address before: 071051 Chaoyang North Street, Hebei, Baoding, No. 3399 Patentee before: YINGLI ENERGY (CHINA) Co.,Ltd. |
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Effective date of registration: 20180531 Address after: 071051 Hengyuan West Road, Baoding, Hebei Province, No. 67 Patentee after: Hebei Yingli Amperex Technology Ltd. Address before: No. 3055 Fuxing Middle Road, Baoding, Hebei Province, Hebei Patentee before: YINGLI PHOTOVOLTAIC ELECTRIC POWER INVESTMENT GROUP CO.,LTD. |
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Granted publication date: 20151125 |