Solar battery, light collection type solar power generating module and solar battery manufacturing method

A technology of solar cells and sunlight, applied in the field of solar cells, can solve problems such as power generation decline

Inactive Publication Date: 2011-02-23
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The solar cell element 111 generates heat due to the concentrated sunlight Lsa, and as a result, there is a problem that generated power (output) decreases.

Method used

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  • Solar battery, light collection type solar power generating module and solar battery manufacturing method
  • Solar battery, light collection type solar power generating module and solar battery manufacturing method
  • Solar battery, light collection type solar power generating module and solar battery manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0129] based on Figure 1A to Figure 3B The solar cell and the concentrating solar power generation module of this embodiment will be described.

[0130] Figure 1A It is a perspective side view showing the schematic structure of the solar cell and the concentrating solar power generation module in the first embodiment of the present invention on the plane including the optical axis.

[0131] Figure 1B means viewed from above Figure 1A Perspective view of the appearance of the solar cell holder and cylindrical optical part shown.

[0132] The solar cell 210 of the present embodiment has: a solar cell element 211 for photoelectrically converting the sunlight Ls condensed by the condensing lens 250, a receiving substrate 220 carrying the solar cell element 211, and a device for making the condensed sunlight Ls incident. The incident surface 231 of the solar cell element 211 is disposed opposite to the solar cell element 211 and the columnar optical member 230 is arranged t...

Embodiment 2

[0154] according to figure 2 The solar cell and the concentrating solar power generation module of this embodiment will be described. The basic structures of the solar cell and the concentrating solar power generation module of this example are the same as those of Example 1. Therefore, the symbols of Example 1 will be appropriately cited and the differences will be mainly described.

[0155] figure 2 It is a side view schematically showing the characteristics of the solar cell and the concentrating photovoltaic module with respect to the wavelength of sunlight according to Example 2 of the present invention.

[0156] The wavelength region of the sunlight Ls includes a short-middle wavelength region from a short wavelength of 400 nm to an intermediate wavelength of 1000 nm (1 μm) and a long-wavelength region exceeding 1 μm. Of the sunlight Ls condensed by the condensing lens 250 , the sunlight Ls in the short-middle wavelength region constitutes the short-middle-wavelength...

Embodiment 3

[0164] according to Figure 3A and Figure 3B The solar cell and the concentrating solar power generation module of this embodiment will be described. The basic structures of the solar cell and the concentrating solar power generation module of this example are the same as those of Example 1 and Example 2. Therefore, the symbols of Examples 1 and 2 will be appropriately cited and the differences will be mainly described.

[0165] Figure 3A It is a side view schematically showing the state of focus shift with respect to the wavelength of sunlight due to the temperature characteristics of the condensing lens in the solar cell and the concentrating solar power generation module according to Example 3 of the present invention.

[0166] Figure 3B is schematically indicated in Figure 3A Top view of the displacement state of the incident surface spotlight area of ​​the incident surface of the solar cell shown.

[0167] The condenser lens 250 of this embodiment is, for example...

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PUM

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Abstract

The invention relates to a solar battery, a light collection type solar power generating module and a solar battery manufacturing method. A solar battery (210) is provided with a pillar optical member (230) comprised of an incident surface (231) on which sun light (Ls) is incident and an irradiation surface (232) arranged facing a solar battery element (211) for the irradiation of the sun light (Ls) to the solar battery element (211) and a holding unit (240) that holds the pillar optical member (230). The holding unit (240) is provided with an abutting frame member (241) that is abutted to a side surface (233) of the pillar optical member (230) and has a thickness (t) in a direction from the incident surface (231) to the irradiation surface (232) and a support member (242) that is arranged separately from the pillar optical member (230) for supporting the abutting frame member (241). The side surface (233) of the pillar optical member (230) is inclined to totally reflect the sun light (Ls) in the direction to the irradiation surface (232) while the incident surface (231) of the pillar optical member (230) is set to such a size that a light flux collection region (FLRd) formed by the sun light (Ls) on the incident surface is positioned inside.

Description

technical field [0001] The present invention relates to a solar cell having a solar cell element for photoelectrically converting concentrated sunlight, a columnar optical member for irradiating the concentrated sunlight to the solar cell element, and a concentrating solar cell having such a solar cell. A power generation module and a solar cell manufacturing method for manufacturing such a solar cell. Background technique [0002] As a solar power generation device, a non-concentrating and fixed flat structure is generally adopted, that is, a solar power generation module composed of solar cell elements without gaps is placed on the roof or the like. On the other hand, there have been proposed techniques for reducing the amount of expensive solar cell elements used among components (parts) constituting a photovoltaic power generation system. [0003] That is, it is proposed to condense sunlight by using optical lenses or reflectors, and irradiate the concentrated sunlight ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/042
CPCF24J2/541Y02E10/52Y02E10/43F24J2/085H01L31/0522F24J2/523F24J2/18Y02E10/47F24S23/31F24S23/79F24S25/10F24S30/425H01L31/0543H01L31/0547
Inventor 冈本亲扶
Owner SHARP KK
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