CN202487612U - Photovoltaic module with high thermal conductivity - Google Patents
Photovoltaic module with high thermal conductivity Download PDFInfo
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- CN202487612U CN202487612U CN 201220003967 CN201220003967U CN202487612U CN 202487612 U CN202487612 U CN 202487612U CN 201220003967 CN201220003967 CN 201220003967 CN 201220003967 U CN201220003967 U CN 201220003967U CN 202487612 U CN202487612 U CN 202487612U
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- layer
- thermal conductivity
- photovoltaic module
- high thermal
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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
Provided is a photovoltaic module with high thermal conductivity, comprising laminated pieces which are laminated from top to bottom and are packaged into an integral body. Each laminated piece is composed of a super-white low-iron tempered glass layer, a first EVA layer, a solar cell layer, a second EVA layer filled with fillers having high thermal conductivity, and a backboard layer filled with fillers having high thermal conductivity. The peripheries of the laminated pieces are sealed by thermally-conductive silica gels and are arranged in an aluminum alloy frame. Compared with the prior art, as the fillers having high thermal conductivity are filled both in the second EVA layer and the backboard layer, the photovoltaic module of the utility model achieves excellent thermal conductivity. Meanwhile, due to the adoption of the thermally-conductive silica gels, the whole module has good heat-conducting ability. Such improvement enables heat that is generated by a solar cell piece in the module to be timely transmitted to the ambient environment, keeping relatively low the temperature of the cell piece and therefore guaranteeing the maximum output power of the module.
Description
Technical field
The utility model relates to the solar components field, particularly a kind of solar photovoltaic assembly with high heat conductance.
Background technology
Increasingly serious along with global energy crisis and environmental problem; Countries in the world are all at active development and application new forms of energy; Especially cleaning, non-pollution of renewable energy have wherein obtained great development in recent years and have used on a large scale with the photovoltaic power generation technology of sunlight as green regenerative energy sources.
In photovoltaic generating system, the most basic unit is a photovoltaic module.Present widely used photovoltaic module is mainly conventional monocrystalline silicon, polysilicon and amorphous silicon membrane assembly.In the process of photovoltaic module opto-electronic conversion; Because silicon solar cell self characteristics; Can only utilize the light of subband in the sunlight, this part light mainly concentrates on visible light wave range, though and in the sunlight light of other wave band such as ultraviolet light and infrared light absorbed by solar cell; But this part transform light energy is a heat, causes photovoltaic module in the process of output electric energy, also can be accompanied by the rising of temperature.The output characteristic and the temperature of photovoltaic module have confidential relation, all can receive Influence of Temperature such as the peak power output of assembly, peak power output voltage, peak power output electric current etc.For Crystalline Silicon PV Module, the temperature coefficient of its peak power output is-(0.4-0.5) %/℃, this means every rising 1 degree of working temperature of assembly, its peak power output (0.4-0.5) % that can descend.In order to guarantee the power output of assembly, must make assembly be operated in lower temperature.
Photovoltaic module mainly is an integral body that solar cell package is become with parts such as toughened glass, EVA (ethylene-vinyl acetate) layer, backboard and frames at present; In these materials; The thermal conductivity of EVA layer and backboard is minimum, has only respectively about 0.23W/ (mK) and 0.36W/ (mK), although the thermal conductivity of battery sheet is up to 148W/ (mK); But EVA layer and backboard that thermal conductivity is low excessively will form thermoresistance layer; The heat that the battery sheet is produced is difficult in time conduct, and causes the temperature of battery sheet too high, has influenced the power output of assembly.Therefore be necessary the encapsulating material that assembly uses is improved, increase its radiating effect, guarantee the power output of assembly.
The utility model content
The utility model technical problem to be solved provides a kind of photovoltaic module with high heat conductance, and this assembly has good heat-conducting effect, can the heat that the battery sheet produces in time be conducted, and makes the battery sheet be operated in lower temperature.
The technical scheme that realizes the utility model is:
A kind of photovoltaic module with high heat conductance comprises the range upon range of from top to bottom laminate of arranging and being packaged as a whole, and it is characterized in that:
Said laminate is made up of ultrawhite low iron toughened glass layer, an EVA layer, solar cell layer, the backsheet layer that is filled with the 2nd EVA layer of high heat filling and is filled with high heat filling; Seal with heat conductive silica gel around the laminate, and be installed in the aluminum alloy frame.
As preferably, the high heat filling in said the 2nd EVA layer is Al
2O
3, a kind of among AlN, SiC or the BN.
The thermal conductivity of said the 2nd EVA layer is between 0.5W/ (mK)～2W/ (mK).
As preferably, the high heat filling that said backsheet layer is filled is Al
2O
3, a kind of among AlN, MgO or the SiC.
The thermal conductivity of said backsheet layer is more than or equal to 0.6W/ (mK).
As preferably, said backboard is the composite membrane of TPT, PET or TPE structure.
The photovoltaic module of the utility model owing in the 2nd EVA layer and backsheet layer, used the encapsulating material of high thermal conductance, makes whole assembly have the good capacity of heat transmission.In the course of work of assembly, the heat that solar battery sheet produces can conduct in surrounding environment through the 2nd EVA layer and approach such as backsheet layer and silica gel, makes the battery sheet can maintain lower temperature, thereby guarantees the peak power output of assembly.
Description of drawings
Embodiment and embodiment to the utility model describes below in conjunction with accompanying drawing.
Fig. 1 is the STRUCTURE DECOMPOSITION figure of laminate in the utility model;
Fig. 2 is the structural representation of the utility model.
Among the figure, 1 is the low iron toughened glass of ultrawhite, and 2 is an EVA layer, and 3 is solar battery sheet, and 4 is the 2nd EVA layer, and 5 is backsheet layer, and 6 is silica gel, and 7 is aluminum alloy frame.
Embodiment:
As depicted in figs. 1 and 2; A kind of photovoltaic module with high heat conductance; Comprise the range upon range of from top to bottom laminate of arranging and under vacuum high-temperature, being packaged as a whole; This laminate by ultrawhite low iron toughened glass layer (1), an EVA layer (2), solar cell layer (3), be filled with the 2nd EVA layer (4) of high heat filling and the backsheet layer (5) that is filled with high heat filling is formed, laminate seals with heat conductive silica gel (6) all around, and is installed in integrant photovoltaic module in the aluminum alloy frame (7).
The EVA layer that this photovoltaic module uses has high light transmittance and higher uvioresistant, heat resistanceheat resistant radiativity, also has good insulation performance performance, heatproof degree alternation property simultaneously.The 2nd EVA layer is except that possessing above-mentioned character, and its composition has been done improvement, and EVA is filled with SiC, and the SiC uniform particles is distributed among the EVA matrix, forms the heat conduction network chain, and the SiC of high heat conductance makes the EVA after crosslinked have good heat-conducting.The backsheet layer of bottom is for being filled with Al
2O
3The TPT of particle, same Al
2O
3Filling also improved the heat conductivility of backboard greatly.In the present embodiment, the thermal conductivity of the 2nd EVA layer and backboard is respectively 0.8W/ (mK) and 1W/ (mK), and than the employed material of general photovoltaic module, the thermal conductivity of these two kinds of materials significantly improves, and has strengthened the heat-sinking capability of assembly.Heat conductive silica gel has also further been strengthened the heat radiation of assembly as another heat dissipation channel.
Claims (6)
1. the photovoltaic module with high heat conductance comprises the range upon range of from top to bottom laminate of arranging and being packaged as a whole, and it is characterized in that:
Said laminate is made up of ultrawhite low iron toughened glass layer (1), an EVA layer (2), solar cell layer (3), the backsheet layer (5) that is filled with the 2nd EVA layer (4) of high heat filling and is filled with high heat filling; Seal with heat conductive silica gel (6) around the laminate, and be installed in the aluminum alloy frame (7).
2. photovoltaic module as claimed in claim 1 is characterized in that: the high heat filling in said the 2nd EVA layer (4) is Al
2O
3, a kind of among AlN, SiC or the BN.
3. photovoltaic module as claimed in claim 1 is characterized in that: the thermal conductivity of said the 2nd EVA layer (4) is between 0.5W/ (mK)～2W/ (mK).
4. photovoltaic module as claimed in claim 1 is characterized in that: the high heat filling that said backsheet layer (5) is filled is Al
2O
3, a kind of among AlN, MgO or the SiC.
5. photovoltaic module as claimed in claim 1 is characterized in that: the thermal conductivity of said backsheet layer (5) is more than or equal to 0.6W/ (mK).
6. photovoltaic module as claimed in claim 1 is characterized in that: said backboard is the composite membrane of TPT, PET or TPE structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220003967 CN202487612U (en) | 2012-01-06 | 2012-01-06 | Photovoltaic module with high thermal conductivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220003967 CN202487612U (en) | 2012-01-06 | 2012-01-06 | Photovoltaic module with high thermal conductivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202487612U true CN202487612U (en) | 2012-10-10 |
Family
ID=46962008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220003967 Expired - Fee Related CN202487612U (en) | 2012-01-06 | 2012-01-06 | Photovoltaic module with high thermal conductivity |
Country Status (1)
| Country | Link |
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| CN (1) | CN202487612U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975448A (en) * | 2012-11-30 | 2013-03-20 | 云南云天化股份有限公司 | Solar battery package material and solar battery |
| CN104980104A (en) * | 2015-06-22 | 2015-10-14 | 广东爱康太阳能科技有限公司 | Solar cell module |
| CN106788197A (en) * | 2017-02-08 | 2017-05-31 | 湖北亿晒科技有限公司 | A kind of compact solar panel structure |
-
2012
- 2012-01-06 CN CN 201220003967 patent/CN202487612U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975448A (en) * | 2012-11-30 | 2013-03-20 | 云南云天化股份有限公司 | Solar battery package material and solar battery |
| CN102975448B (en) * | 2012-11-30 | 2015-08-19 | 云南云天化股份有限公司 | A kind of solar cell package material and a kind of solar cell |
| CN104980104A (en) * | 2015-06-22 | 2015-10-14 | 广东爱康太阳能科技有限公司 | Solar cell module |
| CN106788197A (en) * | 2017-02-08 | 2017-05-31 | 湖北亿晒科技有限公司 | A kind of compact solar panel structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20140106 |