Canon Kabushiki Kaisha

Takaaki Mukai

Akiharu Takabayashi

Masaaki Matsushita

Shigenori Itoyama

Hidehisa Makita

Toshihiko Mimura

Ichiro Kataoka

Masahiro Mori

Ayako Shiomi

Chinchou Lim

Kimitoshi Fukae

Hidetoshi Tsuzuki

A solar cell module includes a front member placed at a light-incident side of the module; a sealing member having an exposed section that is not covered with the front member; solar cell elements that are sealed with the sealing member and covered with the front member; and an electric device, stored in a housing, for extracting electricity generated by the solar cell elements. The housing is fixed on the exposed section and is located at a light-incident side of the module.

Solar cell module having an electric device

Provided is a solar cell module having a reinforcing member integrally stacked by means of a covering material on a rear surface of a solar cell panel having a photovoltaic element that performs photoelectric conversion, wherein a bent portion is formed in each of opposing end portions of the reinforcing member, an output wire member having conductivity is extended from an output portion of the photovoltaic element disposed on a light-receiving surface side of the solar cell panel along a surface of the bent portion so as to get over the bent portion, and a tip end of the extended portion of the output wire member is exposed out of a surface opposite to the reinforcing member of the covering material to form an output terminal portion. Thereby, there is provided a solar cell module that is improved in the area efficiency and weather resistance as well as the workability of electrical wiring and electrical connection during manufacturing and is inexpensive.

Solar cell module

There are provided a restricted area including an area in which solar cell modules are installed, a preventer for preventing intrusion of an intruder into the restricted area, and a detector capable of detecting the intrusion of the intruder into the restricted area, and a predetermined electric shock preventer is activated by a signal outputted from the detector upon detection of the intruder to prevent the intruder from receiving an electric shock.

Photovoltaic power generation systems and methods of controlling photovoltaic power generation systems

In a solar cell module-mounting structure, a solar cell moduleis fixed on one surface of a plate-shaped member, the plate-shaped memberis placed on an installation surface so that one side of the plate-shaped member is in contact with the installation surface, a surface of the plate-shaped memberopposite to the solar cell module-fixing surface is in contact with a first support member, and out of surfaces including the one side of the plate-shaped member, at least a part of the surfaces in no contact with the first support memberis in contact with a second support member, thereby effectively preventing a solar cell module-mounting rack from being moved by a wind load.

Solar cell module-mounting structure and solar cell module array

A solar cell structural body having a solar cell arranged on a concrete retaining body comprising a concrete prepared from a mixture comprising at least a cement, water and an aggregate, such that part of a conductor portion of the solar cell contacts the concrete retaining body. The concrete has a resistivity in a range of from 9&times;10 to 120&times;10 &OHgr;&middot;cm. A solar cell array in which the solar cell structural body is used, and a sunlight power generation system in which the solar cell structural body is used.

Solar cell structural body, solar cell array and sunlight power generation system

A solar cell array having an exposed electroactive portion is connected to a system power supply through an insulation transformer, a ground-fault interrupter is provided between the solar cell array and the system power supply, and a ground-fault detector is provided at the grounded line of the solar cell array. A set current value at which the ground-fault detector judges a ground-fault is larger than an amount of a set current value at which the ground-fault interrupter interrupts a circuit. The insulation transformer is provided between the solar cell array and the system power supply. Owing to such structure, the present invention aims at the simplification of environment-resistive coating having a large ratio of cost of the solar cell, and the simplification of insulating coating of members that connect the solar cells in series and parallel, and provides a photovoltaic power generation system which does not stop by the leakage current of the electroactive portion in connection with such simplification of the environment-resistive coating and insulating coating.

Photovoltaic power generation system

A solar-cell-installed structure is disclosed in which a solar cell at least part of active electric portions of which stands exposed to surroundings is fixed onto a support placed on the ground, and the support is in only spot or line contact with the ground so that any leakage current can be small and the power loss can be lessened.

Solar-cell-installed structure, and photovoltaic power generation system

The solar cell string of the present invention comprises a plurality of solar cells interconnected in series and/or parallel, one positive terminal, and one negative terminal, wherein at least a part of an electric line thereof is not housed in an insulating envelope, and the line is grounded at an electrical middle point between the positive and negative terminals or a point on the side of the negative terminal with respect to the electrical middle point, whereby an environmental resistant coating significantly responsible for a cost of a solar cell module and an insulating coating of a member for interconnecting solar cells in series and/or parallel can be simplified, and safety of an exposed electric line resulting from the simplification of the environmental resistant coating and the insulating coating can be improved.

Solar cell string, solar cell array and solar photovoltaic power system

A portion of one conductor is bent to form a facing portion where two regions face each other, the facing portion and another conductor are inserted into a ring-shaped caulking member, and crimping is effected. This obviates the need for cutting a conductor in the work of coupling the conductor with a plurality of branch lines and the need for preliminarily threading the conductor through ring-shaped caulking members. Thus, it is feasible to improve reliability of electrical connection and to add a new branch line readily.

Conductor connection method, conductor connection structure, and solar cell module having connection structure

A photoelectric conversion layer , a transparent electrode layer , an insulating layer , and a back electrode layer are successively formed in this order on a conductive substrate having a through-hole formed therein, and the transparent electrode layer and the back electrode layer are electrically communicated with each other through the through-hole so as to provide a photovoltaic element in which no grid is employed and improve the productivity and the production yield.

Growing community of inventors

Nara, Japan

Takaaki Mukai