CN110034197A - Photovoltaic module - Google Patents
Photovoltaic module Download PDFInfo
- Publication number
- CN110034197A CN110034197A CN201810022775.7A CN201810022775A CN110034197A CN 110034197 A CN110034197 A CN 110034197A CN 201810022775 A CN201810022775 A CN 201810022775A CN 110034197 A CN110034197 A CN 110034197A
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- Prior art keywords
- photovoltaic module
- packaged glass
- module according
- glass
- backboard
- Prior art date
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- 239000011521 glass Substances 0.000 claims abstract description 55
- 238000002310 reflectometry Methods 0.000 claims abstract description 9
- 238000005538 encapsulation Methods 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 10
- 239000005341 toughened glass Substances 0.000 claims description 6
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 0.000 description 3
- 101001123325 Homo sapiens Peroxisome proliferator-activated receptor gamma coactivator 1-beta Proteins 0.000 description 3
- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 description 3
- 229910021418 black silicon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor 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
- H01L31/04—Semiconductor 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
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
-
- 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
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of photovoltaic modulies, including the packaged glass, cell piece and backboard being arranged from top to bottom, wherein packaged glass is more than 95% for the transmissivity of visible light, and packaged glass is more than 35% for the reflectivity of infrared light.Packaged glass used in above-mentioned photovoltaic module is more than 95% for the transmissivity of visible light, it and is more than 35% for the reflectivity of infrared light, the translucency inside photovoltaic module is improved, the temperature inside photovoltaic module is reduced, so that the transfer efficiency of photovoltaic module is significantly promoted.
Description
Technical field
The present invention relates to photovoltaic technology field, more particularly to a kind of photovoltaic module.
Background technique
Photovoltaic module is that solar energy is converted to the device of electric energy, can also be called solar energy using photovoltaic effect
Solar panel is widely used in daily life and industrial production, for example, user's sun-generated electric power, field of traffic, photovoltaic plant,
Communications field etc..Traditional photovoltaic module due to monolithic solar cell piece electric current and voltage all very littles, generally first by them
Series connection obtains high voltage, then acquisition high current in parallel, is exported by a diode (preventing electric current from feeding back), and they are sealed
On a stainless steel, aluminium or other nonmetallic frames, the backboard at positive packaged glass and the back side is installed, nitrogen is filled with
It is sealed.
During realizing traditional technology, it is found by the applicant that following problems:
The electricity generating principle of conventional photovoltaic component is by the photon of the visible light wave segment limit in transmission sunlight, in battery
Piece surface generates photovoltaic effect to export the electric energy of certain power.However, being converted based on the photovoltaic module of this electricity generating principle
There is contradiction between improved efficiency and problem of temperature rise, the promotion so as to cause photovoltaic module transfer efficiency is limited.
Summary of the invention
Based on this, it is necessary to for the problem that the promotion of photovoltaic module transfer efficiency is limited, provide a kind of photovoltaic module.
A kind of photovoltaic module, including the packaged glass, cell piece and backboard being arranged from top to bottom, wherein the encapsulation glass
Glass is more than 95% for the transmissivity of visible light, and the packaged glass is more than 35% for the reflectivity of infrared light.
Packaged glass used in above-mentioned photovoltaic module is more than 95% for the transmissivity of visible light, and for infrared light
Reflectivity be more than 35%, improve the translucency inside photovoltaic module, reduce the temperature inside photovoltaic module, so that photovoltaic
The transfer efficiency of component is significantly promoted.
The packaged glass is 95%~97% for the transmissivity of visible light in one of the embodiments,.
The packaged glass is tempered glass in one of the embodiments,.
The surface of the tempered glass is coated with high thoroughly middle reflectance coating in one of the embodiments,.
In one of the embodiments, the packaged glass with a thickness of 3.2mm or 4mm.
The cell piece includes single crystal battery piece, polycrystalline cell piece or amorphous silicon battery piece in one of the embodiments,
At least one of.
The lower surface of the backboard is provided with terminal box, one end connection of the terminal box in one of the embodiments,
There is cable, the backboard lower surface is additionally provided with bar code.
The cable is equipped with nameplate in one of the embodiments, and the cable is far from the terminal box
One end is connected with electric wire connecting junction.
It in one of the embodiments, further include encapsulation frame, the encapsulation frame is arranged in the packaged glass, battery
The periphery of piece and backboard, the encapsulation frame are aluminium alloy, stainless steel or nonmetallic frame.
Mounting hole, ground hole and leakage hole are provided on the encapsulation frame in one of the embodiments,.
Detailed description of the invention
Fig. 1 is the positive structure schematic of photovoltaic module of the embodiment of the present invention;
Fig. 2 is the side structure schematic diagram of photovoltaic module of the embodiment of the present invention;
Fig. 3 is the structure schematic diagram of photovoltaic module of the embodiment of the present invention;
Fig. 4 is the power generation schematic diagram of photovoltaic module of the embodiment of the present invention.
Wherein: 100 packaged glass 110 of photovoltaic module
120 backboard 130 of cell piece
131 terminal box 140 of bar code
150 nameplate 151 of cable
Electric wire connecting junction 152 encapsulates frame 160
161 ground hole 162 of mounting hole
Leakage hole 163
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
The electricity generating principle of photovoltaic module is by the photon of the visible light wave segment limit in transmission sunlight, in cell piece table
Face generates photovoltaic effect to export the electric energy of certain power.The maximum power of photovoltaic module and the visual intensity of transmission are at just
Than, and increasing power by maximum power temperature coefficient with the reduction of photovoltaic module temperature, the maximum power of photovoltaic module is higher, turns
It is also higher to change efficiency.But how to improve visual intensity and reduce photovoltaic module temperature, it is very difficult.It is found through analysis, it is red
The temperature-rise effect highest of outer light, transmiting a large amount of infrared light can be such that the environment temperature on the inside of packaged glass significantly increases, and ring
The raising of border temperature can be such that the maximum power of photovoltaic module reduces.However, traditional photovoltaic module not only transmits in sunlight
Visible light, while the infrared light in also a large amount of transmission sunlights, wherein 93% is no more than to the transmissivity of visible light, to infrared
The reflectivity of light is extremely low, causes the transfer efficiency of photovoltaic module lower.Therefore the transmissivity and infrared light of visible light how to be improved
Reflectivity, for improve photovoltaic module transfer efficiency it is particularly significant.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, this application discloses a kind of photovoltaic modulies 100, including the encapsulation being arranged from top to bottom
Glass 110, cell piece 120 and backboard 130, wherein packaged glass 110 for visible light transmissivity be more than 95%, and
Packaged glass 110 is more than 35% for the reflectivity of infrared light.
Packaged glass 110 used in above-mentioned photovoltaic module 100 is more than 95% for the transmissivity of visible light, and right
It is more than 35% in the reflectivity of infrared light, improves the translucency inside photovoltaic module 100, reduce inside photovoltaic module 100
Temperature so that the transfer efficiency of photovoltaic module 100 is significantly promoted.
Above-mentioned packaged glass 110 is a kind of glass that glass surface is carried out to specially treated, i.e., carries out high-quality glass single
Polishing process processing is carried out behind face or two-sided frosting.Thus obtained packaged glass 110, on the one hand may be implemented high light transmission, subtracts
The reflection of few visible light, reduces the reflection coefficient of glass surface, guarantees that packaged glass 110 keeps good transmission under sunlight
Rate;On the other hand middle reflection may be implemented, sunlight mid-infrared light wave band is reflected away, and the temperature-rise effect of infrared light is most
Height, reflective portion infrared light can reduce the environment temperature of 110 inside of packaged glass.
Photovoltaic module 100 is to be produced by the photon of the visible light wave segment limit in transmission sunlight on 120 surface of cell piece
Raw photovoltaic effect is to export the electric energy of certain power.
With reference to Fig. 4, sunlight i is irradiated on packaged glass 110, it is seen that light r1 is largely penetrated, and infrared light r2 reflects in right amount.
, can be largely through the visible light in sunlight after photovoltaic module 100 is using above-mentioned packaged glass 110, and reflect in right amount red
Outer light reduces by 100 internal temperature of photovoltaic module, improves generating efficiency, to improve the transfer efficiency of photovoltaic module 100.
The first encapsulated layer, cell piece are additionally provided between packaged glass 110 and cell piece 120 in above-mentioned photovoltaic module 100
The second encapsulated layer is additionally provided between 120 and backboard 130, so that packaged glass 110, cell piece 120 and backboard 130 are layered in one
It rises.
Further, packaged glass 110 is 95%~97% for the transmissivity of visible light, increases the transmission of visible light
Rate.
In one embodiment, packaged glass 110 is tempered glass, to meet the working process for producing packaged glass 110
It is required that.
Further, the surface of above-mentioned tempered glass is coated with high thoroughly middle reflectance coating, to realize high light transmission and middle reflection simultaneously
Effect, to improve the transfer efficiency of photovoltaic module 100.
In one embodiment, the thickness of packaged glass 110 designs corresponding thickness according to practical application request, encapsulates glass
The thickness of glass 110 is generally 3.2mm or 4mm, but the thickness of packaged glass 110 is not limited with this.
In one embodiment, cell piece 120 includes single crystal battery piece 120, polycrystalline cell piece 120 or amorphous silicon battery piece
At least one of 120.There is no limit as long as can be realized photovoltaic effect for type of the application to cell piece 120.
In one embodiment, the lower surface of backboard 130 is provided with terminal box 140, and one end of terminal box 140 is connected with electricity
Cable 150,130 lower surface of backboard are additionally provided with bar code 131.
Above-mentioned backboard 130 plays protection and supporting role to cell piece 120, has reliable insulating properties, water preventing ability, ageing-resistant
Property.General 130 material of backboard have TPT solar energy backboard, TPE solar energy backboard, BBF solar energy backboard, APE solar energy backboard,
EVA solar energy backboard.
In one embodiment, cable 150 is equipped with nameplate 151, and the one end of cable 150 far from terminal box 140
It is connected with electric wire connecting junction 152.
Above-mentioned terminal box 140 and electric wire connecting junction 152 play a protective role to the electricity generation system of entire photovoltaic module 100.
It in one embodiment, further include encapsulation frame 160, encapsulation frame 160 is arranged in packaged glass 110, cell piece
120 and backboard 130 periphery, encapsulation frame 160 be aluminium alloy, stainless steel or nonmetallic frame.Frame 160 is encapsulated to entire light
Volt component 100 plays the role of support sealing.
In one embodiment, it encapsulates on frame 160 and is provided with mounting hole 161, ground hole 162 and leakage hole 163.Installation
Hole 161 is used to fix photovoltaic module 100, and ground hole 162 is used to play a part of safeguard protection, and leakage hole 163 is used to flow out to stockpile
Rainwater, dew etc. in encapsulation frame 160, make cell piece 120 not influence leakproofness because of suffering erosion.In addition, peace
Filling hole 161, ground hole 162, the position of opening of leakage hole 163 and quantity is arranged according to actual production requirement, unrestricted.
Preferred embodiment one is provided below, by taking 72 320W polycrystalline components as an example, is carried out using traditional packaged glass
When photovoltaic component encapsulating, the transfer efficiency of photovoltaic module is 16.5%, it is seen that the transmissivity of light is 93%, the drop of infrared light reflection
Temp effect, which is gone bail for, keeps -5 DEG C of value, and maximum power temperature coefficient is -0.43%/DEG C.The maximum power and incidence of known photovoltaic module
The visible light part intensity of light is directly proportional, and as the reduction of photovoltaic module temperature with maximum power temperature coefficient increases function
Rate, therefore after the packaged glass 110 for using the application, the peak power of photovoltaic module 100, i.e. maximum power calculate are as follows:
The transfer efficiency of photovoltaic module 100 at this time are as follows:
It can be seen that the transfer efficiency of photovoltaic module 100 has been increased to 17.3% from 16.5% according to above-mentioned calculating process,
It is capable of providing the electric energy of higher power.
Preferred embodiment two is provided below, for the photovoltaic module using routine techniques or uses PERC technology, black silicon
Technology, half chip technology photovoltaic module be equally applicable.
PERC technology is by making 120 passivating back of cell piece of photovoltaic module so as to improving transfer efficiency.
Black silicon technology is to do one layer of coating in silicon chip surface with coating, can largely reduce reflection, to improve conversion effect
Rate.
Half chip technology is the technology that cell piece 120 is carried out to the component package after 1/2 cutting, and essence is to reduce individual battery
The internal resistance of piece 120, to improve transfer efficiency.
The promotion percentage for the peak power that photovoltaic module 100 generates electricity are as follows:
As long as the packaged glass 110 of the application, light therefore will be used instead using the packaged glass of the photovoltaic module of relevant art
The peak power that volt component 100 generates electricity will promote 4.35%, so that the transfer efficiency of photovoltaic module 100 also can be according to preferred reality
The calculation formula applied in example one is correspondingly promoted.
Preferred embodiment three is provided below, standard specification component is applicable in, photovoltaic module off-gauge for size
It is equally applicable.
The promotion percentage for the peak power that photovoltaic module 100 generates electricity are as follows:
As long as therefore the packaged glass of the off-gauge photovoltaic module 100 of size to be used instead to the encapsulation of the consistent the application of size
Glass 110, the peak power that photovoltaic module 100 generates electricity will promote 4.35%, so that the transfer efficiency of photovoltaic module 100 also can
It is correspondingly promoted according to the calculation formula in preferred embodiment one.
Packaged glass 110 used by the application photovoltaic module 100 is mono-crystal component, polycrystalline group for former photovoltaic module
Part or amorphous silicon module, do not limit;For the size of former photovoltaic module, also do not limit;Former photovoltaic module is used
PERC technology, black silicon technology, half chip technology etc., also do not limit.As long as using the application photovoltaic instead on the basis of former photovoltaic module
Packaged glass 110 used by component 100, it will be able to the transmissivity of visible light is improved, while improving the reflectivity of infrared light, from
And the translucency inside photovoltaic module 100 is improved, the temperature inside photovoltaic module 100 is reduced, therefore can be improved former photovoltaic group
The generated output of part 100, to improve the transfer efficiency of former photovoltaic module 100.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of photovoltaic module, which is characterized in that including the packaged glass, cell piece and backboard being arranged from top to bottom, wherein institute
Stating packaged glass is more than 95% for the transmissivity of visible light, and the packaged glass is more than for the reflectivity of infrared light
35%.
2. photovoltaic module according to claim 1, which is characterized in that the packaged glass is for the transmissivity of visible light
95%~97%.
3. photovoltaic module according to claim 1, which is characterized in that the packaged glass is tempered glass.
4. photovoltaic module according to claim 3, which is characterized in that the surface of the tempered glass is coated with high thoroughly middle reflection
Film.
5. photovoltaic module according to claim 1, which is characterized in that the packaged glass with a thickness of 3.2mm or 4mm.
6. photovoltaic module according to claim 1, which is characterized in that the cell piece includes single crystal battery piece, polycrystalline electricity
At least one of pond piece or amorphous silicon battery piece.
7. photovoltaic module according to claim 1, which is characterized in that the lower surface of the backboard is provided with terminal box, institute
The one end for stating terminal box is connected with cable, and the backboard lower surface is additionally provided with bar code.
8. photovoltaic module according to claim 7, which is characterized in that the cable is equipped with nameplate, and the cable
Line is connected with electric wire connecting junction far from one end of the terminal box.
9. photovoltaic module according to claim 1, which is characterized in that it further include encapsulation frame, the encapsulation frame setting
In the periphery of the packaged glass, cell piece and backboard, the encapsulation frame is aluminium alloy, stainless steel or nonmetallic frame.
10. photovoltaic module according to claim 9, which is characterized in that be provided with mounting hole, ground connection on the encapsulation frame
Hole and leakage hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810022775.7A CN110034197A (en) | 2018-01-10 | 2018-01-10 | Photovoltaic module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810022775.7A CN110034197A (en) | 2018-01-10 | 2018-01-10 | Photovoltaic module |
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CN110034197A true CN110034197A (en) | 2019-07-19 |
Family
ID=67234190
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