CN208062065U - Photovoltaic module - Google Patents
Photovoltaic module Download PDFInfo
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- CN208062065U CN208062065U CN201820042681.1U CN201820042681U CN208062065U CN 208062065 U CN208062065 U CN 208062065U CN 201820042681 U CN201820042681 U CN 201820042681U CN 208062065 U CN208062065 U CN 208062065U
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- photovoltaic module
- packaged glass
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- backboard
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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 utility model discloses a kind of photovoltaic modulies, including packaged glass, cell piece and the 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, and it 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 utility model is related to photovoltaic technology field, more particularly to a kind of photovoltaic module.
Background technology
Photovoltaic module is to utilize photovoltaic effect, i.e., solar energy is converted to the device of electric energy, can also be called solar energy
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, positive packaged glass and the backboard at the back side are installed, nitrogen is filled with
It is sealed.
During realizing traditional technology, it is found by the applicant that problems with：
The electricity generating principle of conventional photovoltaic component is the photon by transmiting the visible light wave segment limit in 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.
Utility model content
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 the backboard that are 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,.
The thickness of the packaged glass is 3.2mm or 4mm in one of the embodiments,.
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 are cable, the backboard lower surface to be 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.
Further include encapsulation frame in one of the embodiments, 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.
In one of the embodiments, mounting hole, ground hole and leakage hole are provided on the encapsulation frame.
Description of the drawings
Fig. 1 is the positive structure schematic of the utility model embodiment photovoltaic module；
Fig. 2 is the side structure schematic diagram of the utility model embodiment photovoltaic module；
Fig. 3 is the structure schematic diagram of the utility model embodiment photovoltaic module；
Fig. 4 is the power generation schematic diagram of the utility model embodiment photovoltaic module.
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 implementation mode
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings to this
The specific implementation mode of utility model is described in detail.Elaborate many details in order to abundant in the following description
Understand the utility model.But the utility model can be much to implement different from other manner described here, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more relevant Listed Items.
The electricity generating principle of photovoltaic module is the photon by transmiting the visible light wave segment limit in 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 relatively low.Therefore the transmissivity and infrared light of visible light how to be improved
Reflectivity, for improve photovoltaic module transfer efficiency it is particularly significant.
It please refers to Fig.1, Fig. 2 and Fig. 3, 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.On the one hand thus obtained packaged glass 110 may be implemented high light transmission, subtract
The reflection of few visible light, reduces the reflectance factor of glass surface, ensures 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 the photon by transmiting the visible light wave segment limit in sunlight, is produced on 120 surface of cell piece
Raw photovoltaic effect is to export the electric energy of certain power.
With reference to figure 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.
After photovoltaic module 100 is using above-mentioned packaged glass 110, the visible light in sunlight can be largely penetrated, and reflect in right amount red
Outer light reduces by 100 internal temperature of photovoltaic module, so that generating efficiency is improved, to improve the transfer efficiency of photovoltaic module 100.
The first encapsulated layer, cell piece are additionally provided in above-mentioned photovoltaic module 100 between packaged glass 110 and cell piece 120
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 photovoltaic effect can be realized 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 backboards.
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.
In one embodiment, further include encapsulation frame 160, the encapsulation setting of frame 160 is 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 for fixing photovoltaic module 100, and ground hole 162 is used for plaing a part of safeguard protection, and leakage hole 163 is used for flowing out stockpiling
Rainwater, dew etc. in encapsulating 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, maximum power temperature coefficient be -0.43%/DEG C.The maximum power of known photovoltaic module and incidence
The visible light part intensity of light is directly proportional, and as the reduction of photovoltaic module temperature with maximum power temperature coefficient increases work(
Rate, therefore after the packaged glass 110 for using the application, the peak power of photovoltaic module 100, i.e. maximum power are calculated as：
The transfer efficiency of photovoltaic module 100 is at this time：
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 using the photovoltaic module of routine techniques or using PERC technologies, black silicon
Technology, half chip technology photovoltaic module be equally applicable.
PERC technologies are 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 of peak power that photovoltaic module 100 generates electricity is：
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%, also can be according to preferred reality to the transfer efficiency of photovoltaic module 100
The calculation formula applied in example one is correspondingly promoted.
Preferred embodiment three is provided below, standard specification component is applicable in, for the off-gauge photovoltaic module of size
It is equally applicable.
The promotion percentage of peak power that photovoltaic module 100 generates electricity is：
As long as therefore the packaged glass of the off-gauge photovoltaic module of size 100 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%, also can to the transfer efficiency of photovoltaic module 100
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 technologies, 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 former photovoltaic group can be improved
The generated output of part 100, to improve the transfer efficiency of former photovoltaic module 100.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by 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
It is more than 95% for the transmissivity of visible light to state packaged glass, 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 thickness of the packaged glass is 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
The one end of line far from the terminal box is connected with electric wire connecting junction.
9. photovoltaic module according to claim 1, which is characterized in that 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 |
|---|---|---|---|
| CN201820042681.1U CN208062065U (en) | 2018-01-10 | 2018-01-10 | Photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820042681.1U CN208062065U (en) | 2018-01-10 | 2018-01-10 | Photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN208062065U true CN208062065U (en) | 2018-11-06 |
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ID=63995763
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820042681.1U Active CN208062065U (en) | 2018-01-10 | 2018-01-10 | Photovoltaic module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034197A (en) * | 2018-01-10 | 2019-07-19 | 协鑫能源工程有限公司 | Photovoltaic module |
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2018
- 2018-01-10 CN CN201820042681.1U patent/CN208062065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034197A (en) * | 2018-01-10 | 2019-07-19 | 协鑫能源工程有限公司 | Photovoltaic module |
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Address after: 210046 Longtan Logistics Base No. 3-100, No. 1 Shugang Road, Longtan Street, Qixia District, Nanjing City, Jiangsu Province Patentee after: GCL Green Energy System Technology Co.,Ltd. Address before: 210046 Longtan Logistics Base No. 3-100, No. 1 Shugang Road, Longtan Street, Qixia District, Nanjing City, Jiangsu Province Patentee before: GCL ENERGY ENGINEERING CO.,LTD. |