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solar cell module

A solar cell and photovoltaic technology, applied in the directions of solar thermal energy, solar collectors, solar heating systems, etc., can solve problems such as the reduction of power generation efficiency, and achieve the effect of reducing the reduction of light transmittance and maintaining power generation efficiency.

Active Publication Date: 2019-04-16
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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Experimental program
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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, such as Figure 4 As shown, the solar cell module 1 is used after being fixed on the installation surface (floor P) by the fixing member 20.

[0025] In the following description, in figure 1 In the solar cell module shown, the vertical direction (the direction of gravity) may be set to the down, and the direction opposite to the direction of gravity may be set to the up.

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

no. 2 Embodiment approach

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

no. 3 Embodiment approach

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

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

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Abstract

A solar cell module includes a solar cell panel and a first frame. The solar cell panel includes first and second substrates that are rectangular, and a photoelectric convertor. The first substrate includes a first extension portion and has: a first surface; a second surface on a back of the first surface; and a first A-side and a second A-side facing to each other. The second substrate has a third surface facing the second surface, a fourth surface on a back of the third surface, and a first B-side and a second B-side facing to each other. The photoelectric convertor is arranged between the second surface and the third surface. The first frame includes a first fixing portion that fixes an end of the first extension portion that extends more outside than the first B-side of the second substrate. The first fixing portion forms a groove with the second substrate.

Description

Technical field [0001] The invention relates to a solar cell module. Background technique [0002] Solar cell modules are required to maintain power generation efficiency. One of the reasons for reducing the power generation efficiency of the solar cell module is dirt. 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 of the light-receiving surface, thereby shielding the light, so the power generation efficiency will be reduced. Therefore, a solar cell module in which a notch is provided in the frame of the solar cell module has been proposed (for example, refer to Patent Document 1). [0003] Prior technical literature [0004] Patent literature [0005] Patent Document 1: JP 2011-114257 Publication Summary of the invention [0006] The problem to be solved by the invention [0007] In the solar cell module disclosed in Patent Document 1, in the case of low rainfall, it is difficult ...

Claims

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Application Information

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Patent Type & Authority Patents(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