CN206076245U - A kind of photovoltaic module - Google Patents
A kind of photovoltaic module Download PDFInfo
- Publication number
- CN206076245U CN206076245U CN201620853469.4U CN201620853469U CN206076245U CN 206076245 U CN206076245 U CN 206076245U CN 201620853469 U CN201620853469 U CN 201620853469U CN 206076245 U CN206076245 U CN 206076245U
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- China
- Prior art keywords
- photovoltaic module
- temperature
- header board
- light
- layer
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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
- Y02E10/52—PV systems with concentrators
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a kind of photovoltaic module, including the header board for stacking gradually from top to bottom, the first encapsulated layer, battery strings, the second encapsulated layer and backboard, front plane surface is with the phase change layer that decrease in transmission is raised with temperature.During use, light reaches the front plane surface of photovoltaic module, a part is reflected away, a part reaches battery strings surface through header board and is utilized, with the increase of light application time, assembly temperature gradually rises, with the rising of temperature, the decrease in transmission of the phase change layer of front plane surface, then reflection is increased, light is tailed off into the light of component internal by header board, so as to prevent component and internal system temperature from continuing to rise, realize the purpose of intelligent temperature control, therefore, it is possible to by photovoltaic module temperature control within limits, can be with effective protection component internal circuit and material, extend component service life.
Description
Technical field
This utility model is related to photovoltaic field, more particularly to a kind of photovoltaic module.
Background technology
With the raising and the development of photovoltaic power generation technology of people's environmental consciousness, the range of application of photovoltaic generation is increasingly
Extensively.Photovoltaic module is the core in photovoltaic generating system, improves the profit to light generally individually by the transmitance of increase light
With rate.
With the increase of light intensity, general components internal temperature constantly can be raised, and be sealed using composite as which is internal
Dress, heat conductivity are less, and assembly radiating is poor, and component internal local temperature reaches as high as more than 80 DEG C, and assembly temperature is higher
Bigger to component damages such as internal encapsulating material and diodes, component failures speed is faster；Different places are to photovoltaic module in addition
Require also different, require to realize the strict control to temperature such as agricultural greenhouse etc., temperature can not be too high, and different plants with
Environment also has certain requirement to the transit dose of light, and general components cannot meet this demand.
Therefore how to prevent photovoltaic module and internal system temperature it is too high be that those skilled in the art need to solve at present
Technical problem.
Utility model content
The purpose of this utility model is to provide a kind of photovoltaic module so as to be prevented from photovoltaic module and internal system temperature
It is too high.
To solve above-mentioned technical problem, this utility model provides a kind of photovoltaic module, including what is stacked gradually from top to bottom
Header board, the first encapsulated layer, battery strings, the second encapsulated layer and backboard, the front plane surface raise decrease in transmission with temperature
Phase change layer.
Preferably, the outer surface and inner surface of the header board is respectively provided with the phase change layer.
Preferably, the header board is safety glass.
Preferably, the backboard is TPT backboards.
Preferably, first encapsulated layer and second encapsulated layer are EVA adhesive film.
Preferably, the phase change layer is vanadium dioxide film layer.
The photovoltaic module that this utility model is provided, including the header board for stacking gradually from top to bottom, the first encapsulated layer, battery
String, the second encapsulated layer and backboard, front plane surface is with the phase change layer that decrease in transmission is raised with temperature.During use, light is reached
The front plane surface of photovoltaic module, a part are reflected away, and a part reaches battery strings surface through header board and is utilized, with illumination
The increase of time, assembly temperature gradually rise, with the rising of temperature, the decrease in transmission of the phase change layer of front plane surface, then instead
Penetrate and increase, light is tailed off into the light of component internal by header board, so as to prevent component and internal system temperature from continuing to rise,
Realize the purpose of intelligent temperature control, therefore, it is possible to by photovoltaic module temperature control within limits, can be with effective protection component
Internal circuit and material, extend component service life.
Description of the drawings
Fig. 1 is a kind of structural representation of specific embodiment of photovoltaic module provided by the utility model；
Fig. 2 is the catadioptric fundamental diagram of light.
In figure 1 above -2：1 is header board；2 is the first encapsulated layer；3 is battery strings；4 is the second encapsulated layer；5 is backboard；N is method
Line；L1 is incident ray；L2 is reflection light；L3 is transmitted ray.
Specific embodiment
Core of the present utility model is to provide a kind of photovoltaic module so as to be prevented from photovoltaic module and internal system temperature
It is too high.
In order that those skilled in the art more fully understand this utility model scheme, below in conjunction with the accompanying drawings and it is embodied as
The utility model is described in further detail for mode.
Refer to the knot of Fig. 1 and a kind of specific embodiment that Fig. 2, Fig. 1 are photovoltaic module provided by the utility model
Structure schematic diagram；Fig. 2 is the catadioptric fundamental diagram of light.
The photovoltaic module that this utility model specific embodiment is provided, including the header board 1, first for stacking gradually from top to bottom
Encapsulated layer 2, battery strings 3, the second encapsulated layer 4 and backboard 5,1 surface of header board is with the phase change layer that decrease in transmission is raised with temperature
6。
During use, light reaches 1 surface of header board of photovoltaic module, and a part is reflected away, and a part is reached through header board 1
3 surface of battery strings is utilized, and with the increase of light application time, assembly temperature gradually rises, with the rising of temperature, 1 table of header board
The decrease in transmission of the phase change layer 6 in face, reflectance increase, and are tailed off into the light of component internal by header board 1, so as to prevent group
Part and internal system temperature continue to rise, and realize the purpose of intelligent temperature control, therefore, it is possible to by photovoltaic module temperature control certain
Within the scope of, component service life can be extended with effective protection component internal circuit and material.
The photovoltaic module that this utility model specific embodiment is provided, phase change layer 6 have various set-up modes, and phase change layer 6 can
To be located at the outer surface of header board 1, it is also possible to be located at the inner surface of header board 1, it is preferable that can be in the outer surface of header board 1 and Nei Biao
Face is equipped with phase change layer 6, that is, arrange two-layer phase change layer 6 so that when assembly temperature is raised, the outer surface and inner surface of header board 1
Absorbance decrease, further increase photovoltaic module intelligent temperature control effect.Embodiment of above is in this utility model
Protection domain within.
This utility model specific embodiment provide photovoltaic module, header board 1 can be safety glass, safety glass intensity
Height, impact resistance, and light transmission are good, when photovoltaic module temperature is relatively low, it is ensured that high transmission rate, it is ensured that the utilization rate of light.
Backboard 5 can specifically select TPT backboards, and TPT backboards, insulative water-proof are ageing-resistant, corrosion-resistant, with enough machines
Tool intensity, can be good at protecting photovoltaic module, and certainly, backboard 5 can also select safety glass or TPE backboards etc., at this
Within the protection domain of utility model.
First encapsulated layer 2 is used for bonding header board 1 and battery strings 3, and the second encapsulated layer 4 is used for bonding battery strings 3 and backboard 5,
Specifically, the first encapsulated layer 2 and the second encapsulated layer 4 can be EVA adhesive film, and the high grade of transparency, adhesion strength are strong, good endurance, can be with
Ensure the life-span of photovoltaic module.Certainly, the first encapsulated layer 2 and the second encapsulated layer 4 can also select the bonding that other satisfactions are required
Agent, also within protection domain of the present utility model.
On the basis of above-mentioned each specific embodiment, phase change layer 6 is specifically as follows vanadium dioxide film layer, and vanadium dioxide is
A kind of metal-oxide with phase transition property, the change of its phase transformation front-end geometry cause which to produce from transmission to reflection light
Reversible transition, its phase transition temperature is 68 DEG C, and phase transition temperature is suitable, and phase transformation is reversible, i.e., when temperature is raised, the reflection to light
Rate increases, decrease in transmission, and when temperature is reduced, reflectance reduction, absorbance increase.
When light is shone on the header board 1 with vanadium dioxide film layer, when temperature is increased to phase transition temperature, vanadium dioxide film layer
Transmission to light is reduced, and makes to tail off into the light of component internal by header board 1, and then prevents component and internal system temperature
Continue to rise, by photovoltaic module temperature control within limits；When temperature is down under phase transition temperature, vanadium dioxide film layer
Reflection to light is reduced, and transmission is increased, and is increased the light for entering component internal by header board 1, is slowed down temperature reducing rate.
Certainly phase change layer 6 can also select other materials, as long as absorbance can be adjusted according to temperature change, prevent photovoltaic
Component and internal system temperature are too high, within protection domain of the present utility model.
Above photovoltaic module provided by the utility model is described in detail.Specific case pair used herein
Principle of the present utility model and embodiment are set forth, and the explanation of above example is only intended to help and understands that this practicality is new
The method and its core concept of type.It should be pointed out that for those skilled in the art, without departing from this practicality
On the premise of new principle, some improvement and modification can also be carried out to this utility model, these improve and modification also falls into this
In the protection domain that utility model right is required.
Claims (6)
1. a kind of photovoltaic module, it is characterised in that including the header board for stacking gradually from top to bottom, the first encapsulated layer, battery strings,
Two encapsulated layers and backboard, the front plane surface is with the phase change layer that decrease in transmission is raised with temperature.
2. photovoltaic module according to claim 1, it is characterised in that the outer surface and inner surface of the header board is respectively provided with institute
State phase change layer.
3. photovoltaic module according to claim 2, it is characterised in that the header board is safety glass.
4. photovoltaic module according to claim 3, it is characterised in that the backboard is TPT backboards.
5. photovoltaic module according to claim 4, it is characterised in that first encapsulated layer and second encapsulated layer are
EVA adhesive film.
6. the photovoltaic module according to claim 1 to 5 any one, it is characterised in that the phase change layer is vanadium dioxide
Film layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853469.4U CN206076245U (en) | 2016-08-05 | 2016-08-05 | A kind of photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620853469.4U CN206076245U (en) | 2016-08-05 | 2016-08-05 | A kind of photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206076245U true CN206076245U (en) | 2017-04-05 |
Family
ID=58425616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620853469.4U Active CN206076245U (en) | 2016-08-05 | 2016-08-05 | A kind of photovoltaic module |
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| Country | Link |
|---|---|
| CN (1) | CN206076245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582490A (en) * | 2020-12-17 | 2021-03-30 | 苏州中来光伏新材股份有限公司 | Photovoltaic backboard resisting mechanical impact, preparation process and photovoltaic module |
-
2016
- 2016-08-05 CN CN201620853469.4U patent/CN206076245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112582490A (en) * | 2020-12-17 | 2021-03-30 | 苏州中来光伏新材股份有限公司 | Photovoltaic backboard resisting mechanical impact, preparation process and photovoltaic module |
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