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Folded-plate-shaped photovoltaic assembly, front glass used by folded-plate-shaped photovoltaic assembly and photovoltaic system

A photovoltaic module and front glass technology, applied in the field of photovoltaic systems, can solve the problems of photovoltaic module power generation restriction, limited number of solar cells, large energy loss, etc., and achieve the effect of reducing internal stress, high power generation, and increasing power generation.

Pending Publication Date: 2020-03-27
GUANGDONG AIKO SOLAR ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) In the case of relatively limited layout area of ​​photovoltaic modules, the number of solar cells that each photovoltaic module can accommodate is also very limited
[0006] (2) The structure of photovoltaic modules is relatively simple, and the reflection of light causes excessive energy loss, which limits the power generation of photovoltaic modules to a certain extent

Method used

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  • Folded-plate-shaped photovoltaic assembly, front glass used by folded-plate-shaped photovoltaic assembly and photovoltaic system
  • Folded-plate-shaped photovoltaic assembly, front glass used by folded-plate-shaped photovoltaic assembly and photovoltaic system
  • Folded-plate-shaped photovoltaic assembly, front glass used by folded-plate-shaped photovoltaic assembly and photovoltaic system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 and 2 As shown, it is a folded-plate photovoltaic module of the present invention, which includes front glass 2, battery body and back surface layer arranged in sequence from top to bottom, front glass 2 and back surface layer are respectively mainly connected by multiple A folded plate structure composed of two V-shaped units, the front glass 2 and the V-shaped unit of the back surface layer correspond up and down, and a space for placing the battery body is formed between the two.

[0040] In this embodiment, the photovoltaic module is a crystalline silicon battery module, specifically a double-sided battery module, the overall shape is rectangular and flat, and it includes a front glass 2, a hot melt adhesive layer ( (omitted in the figure), a battery string formed by several solar cells 3 , a hot melt adhesive layer (omitted in the figure) and a back plate 4 . The solar battery sheet 3 is a double-sided battery, and the back plate 4 is a glass pla...

Embodiment 2

[0046] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the photovoltaic module of this embodiment is bent downwards in the transverse direction (in other embodiments, it can also be in the longitudinal direction) (in other embodiments, it can also be Bending upward) so that the front glass 2 and the back plate 4 become concave (in other embodiments, may also be convex) curved plates. The advantage of the photovoltaic module of this embodiment is that as the sun moves, there are solar cells facing the optimal irradiation direction at each angular position of the photovoltaic module, which can increase solar energy absorption.

[0047] In this embodiment, the photovoltaic module is curved, and the included angles of the two inclined panels of all the V-shaped units can be the same, or partly the same, and partly different, which can be determined according to the actual situation.

Embodiment 3

[0049] Such as Figure 4 , 5 As shown, the difference between this embodiment and Embodiment 1 is that the photovoltaic module of this embodiment is a pot-shaped body whose bottom surface is a horizontal plane 9 and whose wall surface is a spherical curved surface 10, wherein there are a plurality of solar cells 3a located on the horizontal plane And successively connected to form a ring, and the solar cells 3b located on the curved surface of the spherical segment are in multiple groups and diverge ( Figure 4 Only two groups of solar cells are drawn in the figure), each group of solar cells 3b is connected in series (in other embodiments, it can also be connected in parallel) and is correspondingly connected with one of the solar cells 3a located in the horizontal plane, and each group is in the outer The solar cells 3c on the edge are connected successively to form a ring.

[0050] In the present embodiment, the front glass 2 and the back plate 4 are all pot-shaped, and t...

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Abstract

The invention discloses a folded-plate-shaped photovoltaic assembly, front glass used by the folded-plate-shaped photovoltaic assembly and a photovoltaic system. The folded-plate-shaped photovoltaic assembly comprises the front glass, a battery body and a back surface layer which are sequentially arranged from top to bottom, and the front glass and the back surface layer are respectively folded plate structures each of which is mainly composed of a plurality of V-shaped units connected in sequence. The V-shaped units of the front glass and the V-shaped units of the back surface layer correspond to each other up and down, and a space for accommodating the battery body is formed between the V-shaped units of the front glass and the V-shaped units of the back surface layer. According to the invention, under the condition of limited area, the overall light receiving area of the photovoltaic assembly can be improved; moreover, when sunlight irradiates the V-shaped units of the front glass,the sunlight can be reflected and incident for multiple times between the two inclined panels of each V-shaped unit, so that the energy absorption of the assembly to the sunlight is increased, and thepower generation capacity of the assembly is improved.

Description

technical field [0001] The invention relates to a folded-plate photovoltaic module, a front glass used in the photovoltaic module, and a photovoltaic system composed of the photovoltaic module. Background technique [0002] A solar cell is a device that effectively absorbs solar radiation and uses the photovoltaic effect to convert light energy into electrical energy. When sunlight shines on the semiconductor P-N junction, new hole-electron pairs will be formed. Under the action of the electric field of the P-N junction, the holes flow from the N region to the P region, and the electrons flow from the P region to the N region. After the circuit is turned on A current will be generated. [0003] Crystalline silicon solar photovoltaic modules are the main form of solar cells in practical applications, and they are the mainstream products in the photovoltaic market today. Crystalline silicon solar photovoltaic modules generally include a front glass, a hot melt adhesive layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/05H01L31/054
CPCH01L31/048H01L31/0508H01L31/0543H01L31/0547Y02E10/52
Inventor 方结彬林纲正陈刚
Owner GUANGDONG AIKO SOLAR ENERGY TECH CO LTD
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