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Mitsubishi electric corp

A technology of solar cells and solar panels, which is applied in the directions of solar thermal power generation, solar thermal energy, and solar collectors, etc., and can solve the problems of lower load-bearing performance of transparent substrates of solar panels, so as to improve low load-resistant properties and suppress damage , the effect of relieving the concentration of local stress

Inactive Publication Date: 2012-04-11
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to this increase in size, the load-bearing performance of the solar cell panel, especially the transparent substrate, decreases

Method used

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  • Mitsubishi electric corp
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0038] figure 1 It is a perspective view showing the state of the initial step of assembling the solar cell module of the present invention. figure 2 It is a perspective view showing a state in which a reinforcement frame is attached to an intermediate assembly having a frame-shaped frame attached to an outer edge of a solar cell panel from the back. image 3 It is a perspective view showing a state in which the attachment of the reinforcing frame to the intermediate assembly is completed.

[0039] The solar cell module has: a substantially rectangular flat solar cell panel 20; a buffer material 31 fixed to the back surface of the solar cell panel 20; and a rectangular frame-shaped frame 10 surrounding the outer edge of the solar cell panel 20 throughout. ; The reinforcement frame 3 installed on the frame-like frame 10 . The buffer material 31 is fixed at a position sandwiched between the solar cell panel 20 and the reinforcement frame 3 .

[0040] Such as figure 1 As sho...

Embodiment approach 2

[0050] Figure 8 It is a perspective view showing a state in which the cushioning material of Embodiment 2 of the solar cell module of the present invention is interposed between the solar cell panel and the reinforcement frame. Figure 9 It is a figure which shows the state which looked at the cushioning material of Embodiment 2 from three directions. Such as Figure 8 as well as Figure 9 As shown, in the buffer material 32 of this embodiment, the first main surface facing the solar cell panel 20 is formed as a substantially flat flat surface 32 a so as to be in flat contact with the solar cell panel 20 .

[0051] On the other hand, on the second main surface facing the reinforcement frame 3, a plurality of protrusions 32b extending in a direction perpendicular to the reinforcement frame 3 are formed, and the corner lines (tops) that smoothly connect these plurality of protrusions 32b are formed. surface) becomes a curved surface 32b with an arcuate cross-section forming ...

Embodiment approach 3

[0055] Figure 11 It is a perspective view of a buffer material in Embodiment 3 of the solar cell module of the present invention. Figure 12 It is a schematic diagram showing a state in which the reaction force from the reinforcing frame side is dispersed by the cushioning material of the third embodiment. The buffer material 33 of the present embodiment is formed in a substantially rectangular parallelepiped flat shape, and the first main surface facing the solar cell panel 20 is a flat surface 33 a. In addition, notches 33 b are respectively provided at the center portions of both ends in the longitudinal direction of the reinforcement frame 3 on the second principal surface facing the reinforcement frame 3 . In other words, the notch 33b is provided at the center of the reinforcement frame 3 side of both longitudinal end faces of the reinforcement frame 3 . That is, the notch 33b is provided at a point different from the existing local stress concentration point P ( Fi...

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Abstract

A solar battery module is provided with a solar battery panel (20) wherein solar battery cells, including a transparent substrate, are arranged; a reinforcing frame (3) arranged on the rear surface of the solar battery panel (20); and a buffer material (31) arranged between the solar battery panel (20) and the reinforcing frame (3). The buffer material (31) has a flat first main surface facing the solar battery panel (20), and a curved second main surface, which faces the reinforcing frame (3), curves in the longitudinal direction of the reinforcing frame (3) and has an arc-shaped across-section protruding to the side of the reinforcing frame (3).

Description

technical field [0001] The present invention relates to a solar cell module installed in a building such as a house or a building to generate electricity using sunlight. Background technique [0002] As a solar cell module, there is a structure in which a transparent substrate (glass) is arranged on the light-receiving surface side, a plurality of solar cell units connected in series or in parallel are arranged on the back side of the transparent substrate, and these plurality of solar cells are sealed with a sealing resin. The battery cells constitute a solar cell panel, and a frame is attached to the peripheral portion of the solar cell panel. [0003] Solar battery modules are generally installed in buildings such as houses and buildings, and are exposed to wind and rain. Since solar cell modules are used in such a severe environment, the strength against wind load or snow load is one of the indicators of product quality. In recent years, in order to reduce the price pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/042
CPCF16F1/3737H01L31/0422Y02E10/52F24J2/4609F16F15/08F16F1/376F24J2/5211Y02E10/47F16F15/04F16F15/073F24J2/4607F24S25/20F24S40/00F24S40/10F24S2080/09H02S20/00H02S30/10Y02E10/50
Inventor 铃木一生
Owner MITSUBISHI ELECTRIC CORP
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