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Solar cell module

A solar cell and photoelectric technology, applied to solar thermal energy, solar collectors, solar heating systems, etc., can solve the problems of power generation efficiency reduction, achieve the effect of alleviating the reduction of light transmittance and maintaining power generation efficiency

Active Publication Date: 2017-05-10
KYOCERA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, if rainwater evaporates on the light-receiving surface of the solar cell module, sand and dust in the rainwater will adhere to the glass on the light-receiving surface, thereby blocking light, so power generation efficiency will decrease

Method used

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  • Solar cell module
  • Solar cell module
  • Solar cell module

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Experimental program
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Effect test

no. 1 Embodiment approach

[0024] Such as figure 1 As shown, the solar cell module 1 has a solar cell panel 2 , a first frame 3 , a second frame 4 , and a third frame 5 . In addition, if Figure 4 As shown, the solar cell module 1 is used after being fixed on the installation surface (ground P) by the fixing member 20 .

[0025] In the description below, the figure 1 In the shown solar cell module, the vertical direction (direction of gravity) may be set as downward, and the direction opposite to the direction of gravity may be set as upward.

[0026] In addition, in each figure, the direction along the longitudinal direction of the first frame 3 of the solar cell module 1 is defined as the X-axis direction, and the direction perpendicular to the X-axis direction and parallel to the main surface of the solar cell panel 2 is defined as the X-axis direction. The direction is defined as the Y-axis direction, and the direction perpendicular to the X-axis direction and the Y-axis direction is defined as t...

no. 2 Embodiment approach

[0056] In this embodiment, if Figure 5 As shown, the structure of the third side part 5b of the third frame 5 located on the third side 2e (side part) of the first extension part 6c is different from the above-mentioned embodiment. Specifically, in the present embodiment, the third frame 5 has a part of the third side surface portion 5b whose height in the stacking direction (Z-axis direction) of the first substrate 6 and the second substrate 8 is equal to or equal to the first extending portion 6c. The drainage part 5c below the height of the second surface 6b of the first substrate 6 in the middle. That is, in the present embodiment, the groove-shaped drainage portion 5c is provided on the third side surface portion 5b of the third frame 5 . The drainage part 5c can be formed by cutting out part of the 3rd side part 5b located in the end part of the 3rd frame 5, for example. In addition, the drainage portion 5 corresponds to a notch extending from the fourth surface 8b si...

no. 3 Embodiment approach

[0060] In this embodiment, if Figure 7 As shown, the point of difference from the above-mentioned embodiment is that the photoelectric conversion part 7 exposed to the gap 6d between the first holding part 3a of the first frame 3 and the second substrate 8 and the photoelectric conversion part 7 is provided. The waterproof member 10 which covers the 2nd end part 7d. Such a waterproof portion 10 can be formed of a filler such as silicone resin, for example.

[0061] Therefore, in the present embodiment, the seal 7 c hardly comes into contact with rainwater remaining in the gap 7 . Therefore, in the present embodiment, since the moisture absorption of the sealing material 7 c can be reduced, acid generation due to hydrolysis of the sealing material 7 c or deterioration of the photoelectric conversion unit 7 due to yellowing can be reduced. As a result, in the present embodiment, it is possible to reduce the decrease in power generation efficiency accompanying the above-mentio...

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Abstract

This solar cell module (1) is provided with: a solar cell panel (2) that comprises a rectangular first substrate (6), which has a first surface (6a) facing a mounting surface (P), a second surface (6b) on the reverse side of the first surface (6a), and a first side (2c) and a second side (2d) that are opposite to each other, a rectangular second substrate (8), which has a third surface (8a) arranged so as to face the second surface (6b) of the first substrate (6), a fourth surface (8b) on the reverse side of the third surface (8a), and a first side (2c) and a second side (2d) that are opposite to each other, and a photoelectric conversion part (7) that is arranged between the second surface (6b) of the first substrate (6) and the third surface (8a) of the second substrate (8); and a first frame (3) that affixes the end portion of a first projecting part 6c of the first substrate (6) by means of a first affixing part, said first projecting part (6c) protruding outwardly from the first side (2c) of the second substrate (8). In this solar cell module (1), the first frame 3 has a gap (6d) between the first fixing part and the second substrate (8).

Description

technical field [0001] The present invention relates to solar cell modules. Background technique [0002] Solar cell modules are required to maintain power generation efficiency. One of the causes of lowering the power generation efficiency of the solar cell module is fouling. For example, if rainwater evaporates on the light-receiving surface of the solar cell module, sand and dust in the rainwater will adhere to the glass on the light-receiving surface, blocking light, and power generation efficiency will decrease. Therefore, a solar cell module in which a notch is provided in a frame of the solar cell module has been proposed (for example, refer to Patent Document 1). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: JP Unexamined Patent Application Publication No. 2011-114257 Contents of the invention [0006] The problem to be solved by the invention [0007] In the solar cell module disclosed in Patent Document 1, when there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S30/10
CPCF24S25/13F24S25/20H01L31/048H01L31/0488H01L31/049H02S20/10H02S20/30H02S30/10H02S40/44Y02E10/50Y02E10/60H01L31/042
Inventor 山下满雄
Owner KYOCERA CORP