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Solar cell module

A technology of solar cell components and solar cells, applied in electrical components, circuits, photovoltaic power generation, etc., can solve problems such as low flexibility, poor productivity, and difficulty in bonding or fixing solar cell components, achieving high reliability and high productivity. high effect

Inactive Publication Date: 2014-05-21
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when it is desired to build a solar cell module into a part of a spherical or elliptical spherical surface such as the roof or window glass of the above-mentioned car, or a part having a three-dimensional curvature in a dome shape, from the above-mentioned conventional In the solar cell module composed of flat glass plates, the flexibility is extremely small, and the solar cell module cannot be bonded or fixed along the curvature.
[0010] In addition, in the case where the above-mentioned conventional transparent film member is used, it is relatively easy to bend so-called bending in one direction along the side of the cylindrical shape, but it is necessary to bend in two directions at the same time. In the case of the above curved shape, wrinkles or forcible stretching will occur on the film members constituting the module, so it is extremely difficult to bond or fix the solar cell module along this curved surface
[0011] Furthermore, a method of directly bonding solar cell cells one by one to a resin or glass material substrate having a spherical curved surface without constructing a solar cell module in advance has also been considered. However, most of the manufacturing process is manual work. , so the productivity is poor and not suitable for mass production

Method used

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Embodiment approach 1

[0043] figure 1 to represent the composition image 3 A diagram of the solar cell sheet 1 of the solar cell module shown.

[0044] The solar battery sheet 1 in this embodiment is at least composed of a plurality of solar battery cells 2, an inter-cell joint 3 electrically connecting adjacent solar battery cells 2, and a pair of transparent thin plates (surfaces) sandwiching these components from both sides. transparent sheet 6A, back sheet 6B).

[0045] Furthermore, in addition to the above-mentioned components, the solar battery sheet 1 also needs to electrically join the two ends of the solar battery cell column 5 composed of a plurality of solar battery cells 2 in many cases, and is used to connect the solar battery sheet 1 to the outside of the solar battery sheet 1. The extraction electrode 4 for extracting current and the filling resin 7 used to fill between the solar battery cells 2 , the inter-cell joints 3 and the extraction electrodes 4 .

[0046] In the solar cel...

Embodiment approach 2

[0065] Figure 5 It is an overall view of the solar cell module in the second embodiment.

[0066] In the second embodiment, since the solar cell sheet 1 and the transparent curved substrate 8 constituting the solar cell module are the same as those described in the first embodiment, the same reference numerals are used to omit their description.

[0067] Figure 6(A) shows the slave Figure 5 The cross-sectional view of the extraction electrode 4 far from the paper surface to the extraction electrode 4 near the paper surface. The difference between the first embodiment and the present embodiment is that in the first embodiment, only the solar battery thin plate 1 and the transparent curved substrate 8 are bonded and fixed with the fixing filling resin 9 in FIG. In Embodiment 2, the solar cell sheet 1 is sandwiched between the transparent curved substrate 8 and the back sealing sheet 11 in FIG. The battery sheets 1 are sealed in a state of being bonded and fixed to each othe...

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Abstract

The invention relates to a solar cell module and provides a solar cell module which includes a curved surface having a three-dimensional curvature and is high in production performance and reliability. A flexible solar cell sheet 1 includes plural through incisions 10 provided between solar cell strings 5 in a direction along the solar cell strings 5. The solar cell sheet 1 is bonded to a transparent curved surface substrate 8 having three-dimensional curvature. Stress generated inside a surface of the solar cell sheet 1 when the sheet is bonded along the curved surface of the transparent curved surface substrate can be alleviated by the through incisions, and bonding can be performed while suppressing twists and wrinkles occurring in the solar cell sheet. Therefore, reliability of the solar cell module can be assured in the same level as in the related art and it is possible to fabricate the solar cell module with high quality in appearance as a product as well as having the three-dimensional curved surface easily without requiring man-hours in the same manner.

Description

technical field [0001] The invention relates to a solar cell module. Background technique [0002] Conventional solar cell modules are generally constructed by enclosing transparent resin (EVA) between a flat glass plate and a weather-resistant film, and sandwiching solar cell cells therebetween. In addition, in order to impart flexibility to the solar cell module, a structure has been proposed in which a transparent film member is used instead of a glass plate, and a solar cell cell is enclosed to form a module, and the module is made flexible and bendable ( Refer to Patent Documents 1 and 2). [0003] In addition, in recent years, not only the horizontal installation of flat-shaped modules such as installation on the roof of houses or large-scale solar power plants, but also the construction and installation of solar battery modules on curved parts of buildings or on the roof of cars, Applications for spherical or dome-shaped parts such as hoods and doors. [0004] prio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/18
CPCH01L31/048H01L31/02013H02S20/26Y02B10/10Y02E10/50Y02T10/90
Inventor 武智洋平间濑健一郎
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD