CN204632775U - An all-black double-glass photovoltaic module - Google Patents

Abstract

The utility model relates to photovoltaic module design field, particularly the complete black pair of glass photovoltaic module of one.A kind of complete black pair of glass photovoltaic module, this complete black pair of glass photovoltaic module comprises upper strata glass, upper strata encapsulated layer, photovoltaic cell, lower floor's encapsulated layer, black coating and lower floor's glass from top to bottom successively, described upper strata encapsulated layer is layed in described photovoltaic cell front, upper strata encapsulated layer is transparent encapsulation material, lower floor's encapsulated layer is layed in the described photovoltaic cell back side, and black coating is coated on the contact-making surface between lower floor's glass and lower floor's encapsulated layer.The structure of this complete black pair of glass photovoltaic module can reduce the operating temperature of photovoltaic module, anti-PID(potential induction attenuation), improve that the resistance to UV of photovoltaic module is aging, wet and heat ageing resistant performance, and reduce the chromatic aberration defect on photovoltaic module cell piece surface, improve the life-span of photovoltaic module.

Description

An all-black double-glass photovoltaic module

technical field

The utility model relates to the field of photovoltaic component design, in particular to an all-black double-glass photovoltaic component.

Background technique

Conventional all-black photovoltaic modules use black backsheet and black frame. This kind of module is mainly used in roof grid-connected systems to meet users' requirements for black appearance of photovoltaic modules. However, due to the color difference of cells and the black backsheet Problems such as high water permeability, polymer black backsheet not resistant to wind and sand, and high operating temperature of modules not only affect the aesthetics of photovoltaic modules, but also affect the power generation efficiency and service life of modules.

Utility model content

In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides an all-black double-glass module structure to solve the problems of cell color difference, high module operating temperature, and polymer backplane not resistant to wind and sand in the existing black photovoltaic modules.

The technical scheme that the utility model solves its technical problem adopts is:

An all-black double-glass photovoltaic module, the all-black double-glass photovoltaic module sequentially includes an upper layer of glass, an upper layer of encapsulation layer, a photovoltaic cell sheet, a lower layer of encapsulation layer, a black coating and a lower layer of glass from top to bottom, and the upper layer of encapsulation layer is laid On the front side of the photovoltaic cells, the upper encapsulation layer is a transparent encapsulation material, the lower encapsulation layer is laid on the back of the photovoltaic cells, and the black coating is coated on the contact surface between the lower glass and the lower encapsulation layer. The structure of the all-black double-glass photovoltaic module can reduce the operating temperature of the photovoltaic module, resist PID (potential-induced degradation), improve the UV aging resistance and damp heat aging resistance of the photovoltaic module, and reduce the color difference defect on the surface of the photovoltaic module cell, improving Lifetime of photovoltaic modules.

Preferably, the edge of the all-black double-glass photovoltaic module is sealed by using a sealing layer through edge sealing. Preferably, the sealing layer is black adhesive tape, black silica gel, black aluminum alloy frame or black plastic frame.

As preferably, the black coating is acrylic paint coating, epoxy paint coating, fluorocarbon paint coating, polyurethane paint coating, phenolic paint coating, alkyd paint coating, nitro paint coating, perchloro Vinyl resin coatings, vinyl acetate coatings, vinylidene chloride copolymer resin coatings, polyvinyl acetal resin coatings, polyester coatings, organic titanium polymer coatings A sort of.

Preferably, the thickness of the black coating is 1-400 μm. The preferred thickness is: 5-10 μm.

The beneficial effects of the utility model are: since a layer of black coating is coated on the lower glass surface of the double-glass photovoltaic module, it can strongly reflect the infrared part of the solar radiation, reduce the operating temperature of the photovoltaic module, and thus increase the power output of the double-glass module , because the lower layer of the double-glass module replaces the conventional polymer backsheet with glass, which reduces the water permeability of the double-glass photovoltaic module and improves the wind and sand resistance performance, thereby improving the stability of the double-glass photovoltaic module.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic structural view of the utility model after packaging;

In the figure: sealing layer—7, upper layer glass—6, upper layer encapsulation layer—5, photovoltaic cell sheet—4, lower layer encapsulation layer—3, black coating—2, and lower layer glass—1.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any modifications and/or changes made to the utility model will fall within the protection scope of the utility model.

In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or commonly used in this field. The methods in the following examples, unless otherwise specified, are conventional methods in the art.

Example 1

As shown in Figure 1, an all-black double-glass photovoltaic module consists of an upper layer of glass 6, an upper layer of encapsulation layer 5, photovoltaic cells 4, a lower layer of encapsulation layer 3, a black coating 2 and a lower layer of glass 1 from top to bottom. Assembled. The black coating 2 is a PVDF coating with a thickness of 10 μm. The weight ratio of the main components of the PVDF coating is: PVDF resin: crosslinking agent: pigment: filler: auxiliary agent: mixed solvent = 1:0.10~0.30:0~0.35 :0~0.05:0.01~0.05:0.10~0.40.

Example 2

An all-black double-glass photovoltaic module, the structure of which is basically the same as that of Example 1, except that the black coating 2 is a black acrylic paint with a thickness of 5 μm.

Example 3

An all-black double-glass photovoltaic module, the structure of which is basically the same as that of Example 1, except that the black coating 2 is a black epoxy coating with a thickness of 100 μm.

Example 4

An all-black double-glass photovoltaic module, the structure of which is basically the same as that of Example 1, except that the black coating 2 is a black polyurethane coating with a thickness of 300 μm.

Example 5

An all-black double-glass photovoltaic module, the structure of which is basically the same as that of Example 1, except that the black coating 2 is a black vinyl acetate coating with a thickness of 400 μm.

Example 6

An all-black double-glass photovoltaic module, the structure of which is basically the same as that of Example 1, except that the black coating 2 is a black polyester coating with a thickness of 1 μm.

Example 7

An all-black double-glass photovoltaic module, the structure of which is basically the same as that of Example 1, except that the sealing layer 7 is used to seal the frame of the module through edge sealing, as shown in Figure 2, wherein the sealing layer 7 is a black adhesive tape, Silicone, aluminum alloy frame or plastic frame.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. An all-black double-glass photovoltaic module, characterized in that: the all-black double-glass photovoltaic module sequentially includes an upper layer of glass, an upper layer of encapsulation layer, a photovoltaic cell sheet, a lower layer of encapsulation layer, a black coating and a lower layer of glass from top to bottom, The upper encapsulation layer is laid on the front of the photovoltaic cell, the upper encapsulation layer is a transparent encapsulation material, the lower encapsulation layer is laid on the back of the photovoltaic cell, and the black coating is applied to the contact between the lower glass and the lower encapsulation layer. noodle. 2 . The all-black double-glass photovoltaic module according to claim 1 , wherein the edge of the all-black double-glass photovoltaic module is sealed by using a sealing layer through edge sealing. 3 . 3. The all-black double-glass photovoltaic module according to claim 2, wherein the sealing layer is black tape, black silica gel, black aluminum alloy frame or black plastic frame. 4. The all-black double-glass photovoltaic module according to claim 1, characterized in that: the black coating is acrylic coating, epoxy coating, fluorocarbon coating, polyurethane coating, phenolic coating coating, alkyd coating, nitro coating, perchlorethylene resin coating, vinyl acetate coating, vinylidene chloride copolymer resin coating, polyvinyl acetal resin coating One or a combination of layers, polyester coatings, and organic titanium polymer coatings. 5. The all-black double-glass photovoltaic module according to claim 4, wherein the thickness of the black coating is 1-400 μm.