CN209561436U - A kind of solar cell backboard that anti-aging property is good - Google Patents

Abstract

The utility model discloses a kind of good solar cell backboards of anti-aging property, including backboard body, the upper surface of the backboard body is fixedly connected with uvioresistant layer, the upper surface of the uvioresistant layer is fixedly connected with resistant coating, the lower surface of the backboard body is fixedly connected with weathering film layer, and the lower surface of the weathering film layer is fixedly connected with high thermal conductivity layer.The utility model not only has good environment resistant erosiveness by the first PVDF layer, PET mylar and the 2nd PVDF layers of backboard body constituted, also there is good insulation performance, uvioresistant layer is constituted by UV-absorbing layer, reflecting layer and composite layer, light reflectivity can be improved simultaneously in the ageing resistance for improving solar cell backboard, increase generating efficiency, resistant coating improves the resistant and self-cleaning ability of solar cell backboard, reduces artificial clean resource consumption and Module Dissipation resulting from and performance decline.

Description

A kind of solar cell backboard that anti-aging property is good

Technical field

The utility model relates to solar cell backboard technical field, the good solar-electricity of specially a kind of anti-aging property Pond backboard.

Background technique

Increasingly depleted due to fossil energy, people are also increasingly urgent to the exploration of emerging energy, and solar energy is as a kind of From a wealth of sources, nexhaustible emerging energy receives people and more and more pays close attention to, and heliotechnics is also increasingly mature therewith, But since solar components are chronically exposed to outdoor application, the influence and destruction of steam, oxygen and ultraviolet light will receive, so Need one layer of solar cell backboard for playing support and protective effect.

Solar panel cross section has five layers: photovoltaic glass, EVA, solar battery sheet, EVA and backboard, it is existing too Positive energy backboard is easy aging and thereby reduces the service life of solar panel so that the solar energy backboard service life is low.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of solar cell backboard that anti-aging property is good, Solve the problems, such as that solar energy backboard is easy aging.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: a kind of solar-electricity that anti-aging property is good Pond backboard, including backboard body, the upper surface of the backboard body are fixedly connected with uvioresistant layer, the uvioresistant layer Upper surface is fixedly connected with resistant coating, and the lower surface of the backboard body is fixedly connected with weathering film layer, the weathering film layer Lower surface be fixedly connected with high thermal conductivity layer, the lower surface of the high thermal conductivity layer is coated with aluminum oxide film layer, the backboard body Including the first PVDF layers, PET mylar and the 2nd PVDF layers, the PET mylar and the first PVDF layers and the 2nd PVDF It is fixedly connected between layer, the uvioresistant layer includes UV-absorbing layer, and the lower surface of the UV-absorbing layer is fixed to be connected It is connected to reflecting layer, the lower surface in the reflecting layer is fixedly connected with composite layer.

The technical program is advanced optimized, the resistant coating is in polysiloxane polymer layer or fluorolefin polymer layer One kind.

The technical program is advanced optimized, the weathering film layer is polyvinyl fluoride layer, polyvinylidene fluoride layer, tetrafluoroethene- One of ethylene copolymer and tetrafluoroethene-hexafluoropropylene copolymer.

The technical program is advanced optimized, the high thermal conductivity layer is fluorocarbon resin layer.

The technical program is advanced optimized, the composite layer is linear low density polyethylene and low density polyethylene (LDPE) configuration group It closes.

The technical program is advanced optimized, the reflecting layer is by linear low density polyethylene, white master material and processing aid It is composed.

The technical program is advanced optimized, the UV-absorbing layer is by linear low density polyethylene, ethene-vinyl acetate Copolymer, white master material, ultraviolet-resistance masterbatch and light stabilizer are composed.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of solar cell backboard that anti-aging property is good, has Below the utility model has the advantages that

The good solar cell backboard of the anti-aging property passes through the first PVDF layers, PET mylar and the 2nd PVDF layers The backboard body of composition not only has good environment resistant erosiveness, also has good insulation performance, is inhaled by ultraviolet light It receives layer, reflecting layer and composite layer and constitutes uvioresistant layer, can be mentioned simultaneously in the ageing resistance for improving solar cell backboard High optical reflectance, increases generating efficiency, and resistant coating improves the resistant and self-cleaning ability of solar cell backboard, reduces Artificial clean resource consumption and Module Dissipation resulting from and performance decline, weathering film layer can further promote the sun Weatherability, barrier property and the ageing resistance of energy battery back-sheet, further promote solar battery back by the setting of high thermal conductivity layer The heat dissipation effect of plate, aluminum oxide film layer can effectively block water oxygen, slow down the aging speed of solar cell backboard, have both simultaneously It is non-conductive under aluminium oxide room temperature, without wet leakage risk.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model backboard body structural schematic diagram；

Fig. 3 is the utility model uvioresistant schematic diagram of a layer structure.

In figure: 1, backboard body；11, the first PVDF layers；12, PET mylar；13, the 2nd PVDF layers；2, uvioresistant Layer；21, UV-absorbing layer；22, reflecting layer；23, composite layer；3, resistant coating；4, weathering film layer；5, high thermal conductivity layer；6, oxygen Change aluminum membranous layer.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of solar battery back that anti-aging property is good Plate, including backboard body 1, the upper surface of backboard body 1 are fixedly connected with uvioresistant layer 2, and the upper surface of uvioresistant layer 2 is solid Surely it is connected with resistant coating 3, resistant coating 3 improves the resistant and self-cleaning ability of solar cell backboard, reduces artificial Clean resource consumption and Module Dissipation resulting from and performance decline, the lower surface of backboard body 1 is fixedly connected with resistance to Film layer 4 is waited, weathering film layer 4 can further promote weatherability, barrier property and the ageing resistance of solar cell backboard, Weather-proof film The lower surface of layer 4 is fixedly connected with high thermal conductivity layer 5, further promotes solar cell backboard by the setting of high thermal conductivity layer 5 Heat dissipation effect, the lower surface of high thermal conductivity layer 5 are coated with aluminum oxide film layer 6, and aluminum oxide film layer 6 can effectively block water oxygen, slow down The aging speed of solar cell backboard, at the same have both it is non-conductive under aluminium oxide room temperature, without wet leakage risk, backboard body 1 Including the first PVDF layer 11, PET mylar 12 and the 2nd PVDF layer 13, PET mylar 12 and the first PVDF layer 11 and It is fixedly connected between two PVDF layers 13, the backboard being made up of the first PVDF layer 11, PET mylar 12 and the 2nd PVDF layer 13 Ontology 1 not only has good environment resistant erosiveness, also has good insulation performance, and uvioresistant layer 2 includes ultraviolet light Absorbed layer 21, the lower surface of UV-absorbing layer 21 are fixedly connected with reflecting layer 22, and the lower surface in reflecting layer 22 is fixedly connected with Composite layer 23 constitutes uvioresistant layer 2 by UV-absorbing layer 21, reflecting layer 22 and composite layer 23, can improve the sun The ageing resistance of energy battery back-sheet improves light reflectivity simultaneously, increases generating efficiency.

Specifically, resistant coating 3 is one of polysiloxane polymer layer or fluorolefin polymer layer, resistant coating 3 Improve the resistant and self-cleaning ability of solar cell backboard.

Specifically, weathering film layer 4 is polyvinyl fluoride layer, polyvinylidene fluoride layer, tetrafluoroethylene-ethylene copolymer and tetrafluoro second One of alkene-hexafluoropropylene copolymer, weathering film layer 4 play a protective role to backboard body 1.

Specifically, high thermal conductivity layer 5 is fluorocarbon resin layer, the heat dissipation effect of backboard body 1 is promoted.

Specifically, composite layer 23 is that linear low density polyethylene is composed with low density polyethylene (LDPE), composite layer 23 guarantees Uvioresistant layer 2 has good composite performance.

Specifically, reflecting layer 22 is composed of linear low density polyethylene, white master material and processing aid, pass through reflection The remaining ultraviolet reflection that layer 22 passes through UV-absorbing layer 21 falls, and reduces the destruction of ultraviolet light, while improving light reflectivity, Increase generating efficiency.

Specifically, UV-absorbing layer 21 by linear low density polyethylene, ethylene-vinyl acetate copolymer, white master material, Ultraviolet-resistance masterbatch and light stabilizer are composed, and UV-absorbing layer 21 absorbs most ultraviolet light, absorb solar radiation The free radical of generation improves ageing resistance.

In conclusion the solar cell backboard that the anti-aging property is good, passes through the first PVDF layer 11, PET mylar 12 and the 2nd PVDF layer 13 constitute backboard body 1 not only have good environment resistant erosiveness, also have good insulation Performance constitutes uvioresistant layer 2 by UV-absorbing layer 21, reflecting layer 22 and composite layer 23, can improve solar-electricity The ageing resistance of pond backboard improves light reflectivity simultaneously, increases generating efficiency, resistant coating 3 improves solar cell backboard Resistant and self-cleaning ability, reduce artificial clean resource consumption and Module Dissipation resulting from and performance decline, Weathering film layer 4 can further promote weatherability, barrier property and the ageing resistance of solar cell backboard, pass through high thermal conductivity layer 5 Setting further promote the heat dissipation effect of solar cell backboard, aluminum oxide film layer 6 can effectively block water oxygen, slow down the sun Can battery back-sheet aging speed, while have both it is non-conductive under aluminium oxide room temperature, without wet leakage risk.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of good solar cell backboard of anti-aging property, including backboard body (1), it is characterised in that: the backboard sheet The upper surface of body (1) is fixedly connected with uvioresistant layer (2), and the upper surface of the uvioresistant layer (2) is fixedly connected with resistant The lower surface of coating (3), the backboard body (1) is fixedly connected with weathering film layer (4), the lower surface of the weathering film layer (4) It is fixedly connected with high thermal conductivity layer (5), the lower surface of the high thermal conductivity layer (5) is coated with aluminum oxide film layer (6), the backboard body It (1) include the first PVDF layer (11), PET mylar (12) and the 2nd PVDF layers (13), the PET mylar (12) and the It is fixedly connected between one PVDF layers (11) and the 2nd PVDF layers (13), the uvioresistant layer (2) includes UV-absorbing layer (21), the lower surface of the UV-absorbing layer (21) is fixedly connected with reflecting layer (22), the lower surface of the reflecting layer (22) It is fixedly connected with composite layer (23).

2. a kind of good solar cell backboard of anti-aging property according to claim 1, it is characterised in that: the resistant Coating (3) is one of polysiloxane polymer layer or fluorolefin polymer layer.

3. a kind of good solar cell backboard of anti-aging property according to claim 1, it is characterised in that: described weather-proof Film layer (4) is polyvinyl fluoride layer, polyvinylidene fluoride layer, tetrafluoroethylene-ethylene copolymer and tetrafluoroethene-hexafluoropropylene copolymer One of.

4. a kind of good solar cell backboard of anti-aging property according to claim 1, it is characterised in that: the height is led Thermosphere (5) is fluorocarbon resin layer.

5. a kind of good solar cell backboard of anti-aging property according to claim 1, it is characterised in that: described compound Layer (23) is that linear low density polyethylene is composed with low density polyethylene (LDPE) configuration.

6. a kind of good solar cell backboard of anti-aging property according to claim 1, it is characterised in that: the reflection Layer (22) is composed of linear low density polyethylene, white master material and processing aid.

7. a kind of good solar cell backboard of anti-aging property according to claim 1, it is characterised in that: described ultraviolet Line absorption layer (21) is by linear low density polyethylene, ethylene-vinyl acetate copolymer, white master material, ultraviolet-resistance masterbatch and light Combination of stabilizers forms.