Sumitomo Electric Industries, Limited

Sharp Kabushiki Kaisha Corporation

Yoshiya Abiko

Takashi Iwasaki

Youichi Nagai

Kenji Saito

Makoto Inagaki

Rui Mikami

Koji Mori

Kazumasa Toya

Yoshiki Kuhara

Akihiko Kojima

Hideaki Nakahata

Masao Moriguchi

Kenichi Hirotsu

Hideo Okada

Yasushi Funakoshi

Kazushi Iyatani

Kyotaro Nakamura

Masafumi Satomura

Yusuke Araki

Yoshifumi Tonomura

Kohjiroh Morii

Takayuki Isaka

Takahiro Asao

A concentrator photovoltaic module includes: a concentrating portion configured by arranging a plurality of Fresnel lenses that concentrate sunlight; a plurality of power generating elements arranged at positions corresponding respectively to the plurality of Fresnel lenses; a plurality of ball lenses corresponding respectively to the plurality of power generating elements and guide the sunlight concentrated by the plurality of Fresnel lenses to the plurality of power generating elements; and a housing that contains the plurality of ball lenses and the plurality of power generating elements. The housing includes a resin frame body, and a metal bottom plate that is fixed to the frame body, and on the inner surface of which the plurality of ball lenses and the plurality of power generating elements are arranged. The groove portion for reducing thermal expansion of the inner surface side of the bottom plate is on the inner surface of the bottom plate.

Concentrator photovoltaic module, concentrator photovoltaic panel, and concentrator photovoltaic apparatus

In a concentrator photovoltaic unit configured to guide sunlight concentrated by a primary concentrating portion to a power generating element by means of a secondary concentrating portion, the secondary concentrating portion includes: a secondary lens having a three-dimensional shape; and a cover portion being translucent and having a refractive index higher than that of air and lower than that of the secondary lens, the cover portion covering at least a surface on which the sunlight is incident in a surface of the secondary lens, in a thin film shape extending along the surface on which the sunlight is incident. By arranging a large number of the units, a concentrator photovoltaic module can be configured. By arranging a large number of the concentrator photovoltaic modules, a concentrator photovoltaic panel can be configured. By further providing a driving device for tracking the sun, a concentrator photovoltaic apparatus can be configured.

Concentrator photovoltaic unit, concentrator photovoltaic module, concentrator photovoltaic panel, and concentrator photovoltaic apparatus

Provided is a photovoltaic apparatus including: a power generation part including a plurality of power generating elements each generating power in accordance with an amount of received light, the power generation part having a light receiving surface and a back surface positioned on an opposite side to the light receiving surface; a function part provided separately from the power generation part and configured to provide functions regarding the photovoltaic apparatus; and a position changeable part provided between the power generation part and the function part and capable of changing positions of the power generation part and the function part, wherein the back surface of the power generation part faces the function part face, and the position changeable part is capable of changing the positions of the power generation part and the function part while maintaining a state where the back surface of the power generation part faces the function part.

Photovoltaic apparatus

Casing for concentrator photovoltaic module

An enclosure for a concentrator photovoltaic device according to the present disclosure includes a side wall having an upper end, a lower end, an inner surface, and an outer surface, the side wall being composed of a resin, the side wall being provided with an air hole extending through the inner and outer surfaces of the side wall, the air hole being inclined from the inner surface of the side wall to the outer surface of the side wall in a direction from the upper end of the side wall toward the lower end of the side wall. According to the present disclosure, power generation efficiency of a photovoltaic module can be further increased, and the photovoltaic module can be suppressed from being decreased in performance due to entrance of undesired matters to inside of the case, such as dusts, water droplets, and foreign matters.

Enclosure for concentrator photovoltaic device and concentrator photovoltaic device using same

Flexible printed wiring board

This photovoltaic system includes: a support portion; a photovoltaic panel supported by the support portion so as to be able to take an orientation at any angle in each of azimuth and elevation; a drive device configured to change the orientation of the photovoltaic panel; and a control device configured to cause, during power generation, the drive device to drive the photovoltaic panel such that sun light hits the photovoltaic panel, the control device configured to, when executing a cleaning mode, control the drive device such that the photovoltaic panel takes an orientation that facilitates removal of attached substance to a light receiving surface of the photovoltaic panel by use of at least one of natural phenomena including rain, wind, dew condensation, and gravity.

Photovoltaic system and panel cleaning method

Provided is a solar cell for which accurate mutual alignment between a condenser lens and a power generating element corresponding thereto can be performed. In a solar cell, a plurality of grid electrodeseach formed in a linear shape are arrayed on a light receiving surfacealong the width direction of the light receiving surface. The plurality of grid electrodesinclude a first center grid electrodeforming a cross portionexhibiting a center-specific geometry caused by electrodes crossing each other at the center of the light receiving surface

Solar cell, concentrator photovoltaic unit, concentrator photovoltaic module, and method for producing concentrator photovoltaic module

Concentrator photovoltaic unit

Flexible printed wiring board with device

Growing community of inventors

Osaka, Japan

Yoshiya Abiko