CN104980104A - Solar cell module - Google Patents

Solar cell module Download PDF

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Publication number
CN104980104A
CN104980104A CN201510349841.8A CN201510349841A CN104980104A CN 104980104 A CN104980104 A CN 104980104A CN 201510349841 A CN201510349841 A CN 201510349841A CN 104980104 A CN104980104 A CN 104980104A
Authority
CN
China
Prior art keywords
battery
solar module
backboard
eva
vinyl acetate
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.)
Pending
Application number
CN201510349841.8A
Other languages
Chinese (zh)
Inventor
方结彬
秦崇德
石强
黄玉平
何达能
陈刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Aiko Solar Energy Technology Co Ltd
Original Assignee
Guangdong Aiko Solar Energy Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Aiko Solar Energy Technology Co Ltd filed Critical Guangdong Aiko Solar Energy Technology Co Ltd
Priority to CN201510349841.8A priority Critical patent/CN104980104A/en
Publication of CN104980104A publication Critical patent/CN104980104A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/052Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/048Encapsulation of modules
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The invention discloses a solar cell module. The solar cell module comprises toughened glass, an upper-layer ethane-vinyl acetate copolymer (EVA), a battery, a lower-layer ethane-vinyl acetate copolymer (EVA) and a backboard, which are all laminated together in sequence. An aluminium frame is disposed around the assembly to fix the assembly. A conjunction box connected to the positive and negative electrodes of the battery is disposed outside the backboard. A graphite heat conduction membrane is disposed between the battery and the lower-layer ethane-vinyl acetate copolymer (EVA) and the backboard. Compared with the prior art, the solar cell module has the following beneficial effects: the graphite heat conduction membrane, disposed between the battery and the lower-layer ethane-vinyl acetate copolymer (EVA) and the backboard, has the superhigh heat conduction performance, can conduct heat of the battery during a power generating process and also uniformly redistributes heat of the battery, therefore, hot spot effects of the battery are minimized, the photoelectric conversion efficiency of the solar battery is improved, and then the power generating capacity of the module is increased.

Description

A kind of solar module
Technical field
The present invention relates to solar module technical field, particularly relate to a kind of novel solar module.
Background technology
Solar module is the core in solar power system, and its effect converts solar energy into electrical energy, and is then sent in storage battery by electricity and stores, or promotes loaded work piece.
Solar cell is that one absorbs solar radiant energy effectively, utilize photovoltaic effect that transform light energy is become the device of electric energy, when solar irradiation is in semiconductor P-N junction (P-N Junction), form new hole-electron to (V-E pair), under the effect of P-N junction electric field, hole flows to P district by N district, and electronics flows to N district by P district, just forms electric current after connecting circuit.
As shown in Figure 1, conventional solar cells assembly is made up of the toughened glass 1 ' of sequentially stacked setting, upper strata ethylene-vinyl acetate copolymer (EVA) 2 ', battery pack 3 ', lower floor's ethylene-vinyl acetate copolymer (EVA) 4 ' and backboard 5 ', surrounding puts aluminium frame 6 ' and is adhesively fixed with silica gel, the terminal box 7 ' that one connects the both positive and negative polarity of battery pack installed outward by backboard 5 ', the solar battery group 3 ' acting as protection component internal of toughened glass 1 ', ensures that sunlight is transmitted on battery simultaneously; EVA4 ' is used for boning fixing toughened glass 1 ' and solar battery group 3 '; The effect of battery pack 3 ' is exactly convert solar energy into electrical energy; The effect of backboard 5 ' is by component sealing, Assurance component insulation and waterproof; Aluminium frame 6 ' is used for protecting assembly to play certain sealing, supporting role; Terminal box 7 ' is used for coupling assembling and assembly, improves the generated output of solar power station.
Solar-electricity stands in running, because battery component will accept the radiation of sunlight, and the reason of self generating simultaneously, cause assembly to produce very large heat, self-temperature is very high; And the output of temperature to solar module power has a great impact, when solar module temperature is higher, work efficiency drop, along with the increase of solar cell temperature, open circuit voltage reduces, 20-100 DEG C of scope, approximately often raise 1 DEG C, the voltage of every sheet battery reduces 2mV.Generally speaking, temperature raises, the power drop of solar cell, and typical temperature coefficient is-0.35%/DEG C.That is, if solar cell temperature often raises 1 DEG C, then power reduces 0.35%.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of temperature that can reduce cell piece in assembly operating process, promotes the photoelectric conversion efficiency of cell piece, and then the solar module of the energy output of lifting subassembly,
In order to solve the problems of the technologies described above, the invention provides a kind of solar module, comprise the toughened glass of sequentially stacked setting, upper strata ethylene-vinyl acetate copolymer (EVA), battery pack, lower floor's ethylene-vinyl acetate copolymer (EVA) and backboard, assembly surrounding puts aluminium frame and fixes, the terminal box of both positive and negative polarity that one connects battery pack installed outward by backboard, described battery pack and be provided with graphite guide hotting mask between lower floor's ethylene-vinyl acetate copolymer (EVA) and backboard.
As the improvement of such scheme, described toughened glass is the ultrawhite tempering coated glass that light transmittance is greater than more than 90%.
As the improvement of such scheme, described battery pack is crystal silicon battery group or hull cell group.
As the improvement of such scheme, described crystal silicon battery group is monocrystalline silicon battery group or polycrystal silicon cell group.
As the improvement of such scheme, described polycrystal silicon cell group welds together into 6*10 or 6*12 array by crystal silicon battery.
As the improvement of such scheme, described graphite guide hotting mask is graphene layers or graphite composite bed.
As the improvement of such scheme, described graphite composite bed is composited by graphite linings and PETG (PET) film or forms by gluing is bonding.
As the improvement of such scheme, described PETG (PET) film is two-layer, and graphite linings is positioned between two-layer PETG (PET).
As the improvement of such scheme, PETG (PET) film of described graphite composite bed near battery pack side is white.
As the improvement of such scheme, described backboard is polyvinyl fluoride composite membrane (TPT) or thermoplastic elastomer (TPE) (TPE).
Compared with prior art, the present invention has following beneficial effect: the present invention is provided with graphite guide hotting mask in described battery pack and between lower floor's ethylene-vinyl acetate copolymer (EVA) and backboard, because graphite guide hotting mask has the heat conductivility of superelevation, thermal resistance is lower than aluminium by 40%, lower than copper by 20%, and weight ratio aluminium is light by 25%, lighter than copper by 75%, be applicable to very much adding in assembly, the heat conduction of battery pack in power generation process can be gone out by it, the even heat of battery pack itself is distributed again simultaneously, reduce the hot spot effect of battery pack, promote the photoelectric conversion efficiency of solar cell, and then the energy output of lifting subassembly.
Accompanying drawing explanation
Fig. 1 is the solar module structure chart of current industry;
Fig. 2 is a kind of solar module structure chart of the present invention;
Fig. 3 is the structural representation of graphite composite bed.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1 to Figure 3, the invention provides a kind of solar module, comprise the toughened glass 1 of sequentially stacked setting, upper strata ethylene-vinyl acetate copolymer (EVA) 2, battery pack 3, lower floor's ethylene-vinyl acetate copolymer (EVA) 4 and backboard 5, assembly surrounding puts aluminium frame 7 and fixes, backboard 5 is outer installs the terminal box 7 that connects the both positive and negative polarity of battery pack 3, battery pack 3 and be provided with graphite guide hotting mask 8 between lower floor's ethylene-vinyl acetate copolymer (EVA) 4 and backboard 5.Toughened glass 1 is greater than the ultrawhite tempering coated glass of more than 90% for light transmittance.
As the improvement of such scheme, battery pack 3 is crystal silicon battery group or hull cell group, and crystal silicon battery group is monocrystalline silicon battery group or polycrystal silicon cell group; Polycrystal silicon cell group welds together into 6*10 or 6*12 array by crystal silicon battery.
As the improvement of such scheme, graphite guide hotting mask 8 is graphene layers or graphite composite bed, and graphite composite bed is composited by graphite linings 81 and PETG (PET) film 82 or forms by gluing is bonding; PETG (PET) film 82 is two-layer, graphite linings 81 is positioned between two-layer PETG (PET) 82, and PETG (PET) film 82 of graphite composite bed near battery pack side is white.
As the improvement of such scheme, backboard is polyvinyl fluoride composite membrane (TPT) or thermoplastic elastomer (TPE) (TPE).
Compared with prior art, the present invention has following beneficial effect: the present invention is provided with graphite guide hotting mask 8 in described battery pack 3 and between lower floor's ethylene-vinyl acetate copolymer (EVA) 4 and backboard 5, because graphite guide hotting mask 8 has the heat conductivility of superelevation, thermal resistance is lower than aluminium by 40%, lower than copper by 20%, and weight ratio aluminium is light by 25%, lighter than copper by 75%, be applicable to very much adding in assembly, the heat conduction of battery pack 3 in power generation process can be gone out by it, the even heat of battery pack 3 itself is distributed again simultaneously, reduce the hot spot effect of battery pack 3, promote the photoelectric conversion efficiency of solar cell, and then the energy output of lifting subassembly.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.

Claims (10)

1. a solar module, comprise the toughened glass of sequentially stacked setting, upper strata ethylene-vinyl acetate copolymer (EVA), battery pack, lower floor's ethylene-vinyl acetate copolymer (EVA) and backboard, assembly surrounding puts aluminium frame and fixes, the terminal box that one connects the both positive and negative polarity of battery pack installed outward by backboard, it is characterized in that, described battery pack and be provided with graphite guide hotting mask between lower floor's ethylene-vinyl acetate copolymer (EVA) and backboard.
2. a kind of solar module as claimed in claim 1, is characterized in that, described toughened glass is the ultrawhite tempering coated glass that light transmittance is greater than more than 90%.
3. a kind of solar module as claimed in claim 1, is characterized in that, described battery pack is crystal silicon battery group or hull cell group.
4. a kind of solar module as claimed in claim 3, is characterized in that, described crystal silicon battery group is monocrystalline silicon battery group or polycrystal silicon cell group.
5. a kind of solar module as claimed in claim 3, is characterized in that, described polycrystal silicon cell group welds together into 6*10 or 6*12 array by crystal silicon battery.
6. a kind of solar module as claimed in claim 1, is characterized in that, described graphite guide hotting mask is graphene layers or graphite composite bed.
7. a kind of solar module as claimed in claim 6, is characterized in that, described graphite composite bed is composited by graphite linings and PETG (PET) film or forms by gluing is bonding.
8. a kind of solar module as claimed in claim 6, is characterized in that, described PETG (PET) film is two-layer, and graphite linings is positioned between two-layer PETG (PET).
9. a kind of solar module as claimed in claim 7, is characterized in that, PETG (PET) film of described graphite composite bed near battery pack side is white.
10. a kind of solar module as claimed in claim 1, is characterized in that, described backboard is polyvinyl fluoride composite membrane (TPT) or thermoplastic elastomer (TPE) (TPE).
CN201510349841.8A 2015-06-22 2015-06-22 Solar cell module Pending CN104980104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510349841.8A CN104980104A (en) 2015-06-22 2015-06-22 Solar cell module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510349841.8A CN104980104A (en) 2015-06-22 2015-06-22 Solar cell module

Publications (1)

Publication Number Publication Date
CN104980104A true CN104980104A (en) 2015-10-14

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Family Applications (1)

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105679871A (en) * 2016-01-21 2016-06-15 江苏辉伦太阳能科技有限公司 Photovoltaic module capable of radiating automatically

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100186806A1 (en) * 2009-01-26 2010-07-29 Mitsubishi Electric Corporation Photovoltaic module
CN202487612U (en) * 2012-01-06 2012-10-10 南通美能得太阳能电力科技有限公司 Photovoltaic module with high thermal conductivity
CN202513179U (en) * 2012-04-09 2012-10-31 李晨 Solar battery assembly
CN102790101A (en) * 2012-09-03 2012-11-21 山东力诺太阳能电力股份有限公司 Solar photovoltaic photo-thermal integrated assembly
CN202651158U (en) * 2012-05-09 2013-01-02 华东理工大学 Synergistic heat radiation solar cell assembly
CN202888215U (en) * 2012-11-01 2013-04-17 乐凯胶片股份有限公司 Radiating solar battery back film
CN103180967A (en) * 2010-10-13 2013-06-26 金敏赫 Back sheet of a solar cell module for photovoltaic power generation
CN103872162A (en) * 2014-03-18 2014-06-18 连云港神舟新能源有限公司 Low-working-temperature solar cell module
CN204011449U (en) * 2014-06-20 2014-12-10 中南林业科技大学 A kind of solar panel with graphene layer
CN104241424A (en) * 2014-09-19 2014-12-24 乐凯胶片股份有限公司 Heat dissipation solar cell back membrane
CN204131464U (en) * 2014-09-30 2015-01-28 攀枝花大盛世纪新能源科技开发有限公司 Solar energy optical-thermal complicated utilization device
CN204794894U (en) * 2015-06-22 2015-11-18 广东爱康太阳能科技有限公司 Solar cell assembly

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100186806A1 (en) * 2009-01-26 2010-07-29 Mitsubishi Electric Corporation Photovoltaic module
CN103180967A (en) * 2010-10-13 2013-06-26 金敏赫 Back sheet of a solar cell module for photovoltaic power generation
CN202487612U (en) * 2012-01-06 2012-10-10 南通美能得太阳能电力科技有限公司 Photovoltaic module with high thermal conductivity
CN202513179U (en) * 2012-04-09 2012-10-31 李晨 Solar battery assembly
CN202651158U (en) * 2012-05-09 2013-01-02 华东理工大学 Synergistic heat radiation solar cell assembly
CN102790101A (en) * 2012-09-03 2012-11-21 山东力诺太阳能电力股份有限公司 Solar photovoltaic photo-thermal integrated assembly
CN202888215U (en) * 2012-11-01 2013-04-17 乐凯胶片股份有限公司 Radiating solar battery back film
CN103872162A (en) * 2014-03-18 2014-06-18 连云港神舟新能源有限公司 Low-working-temperature solar cell module
CN204011449U (en) * 2014-06-20 2014-12-10 中南林业科技大学 A kind of solar panel with graphene layer
CN104241424A (en) * 2014-09-19 2014-12-24 乐凯胶片股份有限公司 Heat dissipation solar cell back membrane
CN204131464U (en) * 2014-09-30 2015-01-28 攀枝花大盛世纪新能源科技开发有限公司 Solar energy optical-thermal complicated utilization device
CN204794894U (en) * 2015-06-22 2015-11-18 广东爱康太阳能科技有限公司 Solar cell assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105679871A (en) * 2016-01-21 2016-06-15 江苏辉伦太阳能科技有限公司 Photovoltaic module capable of radiating automatically

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Application publication date: 20151014

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