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Hot spot-resistant photovoltaic dual-glass module

A double-glass module and photovoltaic technology, which is applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of reduced hot spot effect of photovoltaic modules and inability to resist heat spots, so as to remove bad defects, solve technical difficulties, The effect of improving the yield rate

Pending Publication Date: 2018-07-24
浙江尚越新能源开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the existing photovoltaic double-glass components cannot be well resistant to heat spots, and to provide a heat-spot-resistant photovoltaic double-glass component. By introducing diodes between the cells, each cell is uniform Can play a role in reducing hot spots, thereby reducing the hot spot effect of photovoltaic modules to a minimum

Method used

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  • Hot spot-resistant photovoltaic dual-glass module
  • Hot spot-resistant photovoltaic dual-glass module
  • Hot spot-resistant photovoltaic dual-glass module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 As shown, a heat-spot-resistant photovoltaic double-glass module includes front glass 1, upper packaging film 2 (commercially available material), battery sheet group 3, lower packaging film 4 (commercially available material) and back glass from top to bottom. 5. The battery slice group is composed of a plurality of battery slices 31 connected in series through interconnection strips 6, a diode 7 is arranged between adjacent battery slices, and both ends of the diode are respectively connected to adjacent battery slices.

[0044] Such as figure 2 As shown, interconnection strips are evenly distributed on the front and back of the battery sheet group. There are three interconnection strips on each surface: upper, middle and lower. The middle interconnection strip coincides with the central axis of the battery sheet group, and the diodes are welded The interconnection bar in the middle of the back of the battery pack connects the connecting segments of...

Embodiment 2

[0059] The difference between this embodiment and embodiment 1 is:

[0060] The cell group is composed of polycrystalline cells, and the process parameters of the lamination process are set as follows:

[0061] 1. The upper and lower chambers of the lamination chamber are vacuumed for 6 minutes, the vacuum degree is maintained at 0-20mbar, and the temperature is maintained at 140±2°C;

[0062] 2. One-stage heat preservation and pressurization: the time is 3 minutes, the upper chamber is pressurized to 100mbar, the lower chamber is vacuumed, the vacuum degree is maintained at 0-20mbar, and the temperature is maintained at 140±2°C;

[0063] 3. The second stage of heat preservation and pressurization: the time is 4 minutes, the upper chamber is pressurized to 200mbar, the lower chamber is evacuated, the vacuum degree is maintained at 0-20mbar, and the temperature is maintained at 140±2°C;

[0064] 4. Three-stage heat preservation and pressurization: the time is 4 minutes, the up...

Embodiment 3

[0071] Such as figure 1 As shown, a heat-spot-resistant photovoltaic double-glass module includes front glass 1, upper packaging film 2, battery sheet group 3, lower packaging film 4 and back glass 5 from top to bottom, and the battery sheet group consists of multiple The battery slices 31 are connected in series through interconnection bars 6 , two diodes 7 are arranged between adjacent battery slices, and the two ends of the diodes are respectively connected to adjacent battery slices.

[0072] Such as image 3 As shown, interconnection strips are evenly distributed on the front and back of the battery sheet group. There are three interconnection strips on each surface: upper, middle and lower. The middle interconnection strip coincides with the central axis of the battery sheet group. A diode Welded on the connecting section where the upper interconnection bar on the back of the battery pack connects adjacent battery slices; another diode is welded on the connecting sectio...

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Abstract

The invention discloses a hot spot-resistant photovoltaic dual-glass module. The hot spot-resistant photovoltaic dual-glass module sequentially comprises front-surface glass (1), an upper package film(2), a battery piece group (3), a lower package film (4) and back-surface glass (5) from top to bottom, wherein the battery piece group is formed by connecting a plurality of battery pieces (3) by welding strips (6), a plurality of diodes (7) are arranged among adjacent battery pieces, and two ends of the diodes are connected with adjacent battery pieces. By introducing the diodes among the battery pieces, an effect of reducing hot spot on each battery piece can be achieved, so that the hot spot effect of the photovoltaic module is reduced to minimum.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic module production, in particular to a heat-spot-resistant photovoltaic double-glass module. Background technique [0002] Solar energy is a renewable, clean and non-polluting emerging energy that is not limited by geographical resources. It is gradually being widely used on a large scale. Solar photovoltaic power generation will occupy an important seat in the world's energy consumption in the 21st century. It is estimated that by 2030, solar photovoltaic power generation will account for more than 10% of the world's total power supply; by the end of the 21st century, solar power generation will account for 60%. above. These figures are enough to show the development prospects of the solar photovoltaic industry and its important strategic position in the energy field. [0003] With the development of photovoltaic applications, the combination of photovoltaic modules with buildings, ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/044H01L31/18
CPCH01L31/044H01L31/048H01L31/18Y02E10/50Y02P70/50
Inventor 任宇航黄书斌吉心紫陆朝阳
Owner 浙江尚越新能源开发有限公司
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