Canon Kabushiki Kaisha

Shigenori Itoyama

Hidehisa Makita

Satoru Shiomi

Kimitoshi Fukae

Akiharu Takabayashi

Yuji Inoue

Ichiro Kataoka

Masaaki Matsushita

Takaaki Mukai

Masahiro Mori

Satoru Yamada

Takahiro Mori

Toshihiko Mimura

Yoshitaka Nagao

Makoto Sasaoka

Tatsuo Fujisaki

Ayako Komori

Fumitaka Toyomura

Takehito Yoshino

Takashi Ohtsuka

Soichiro Kawakami

Hidetoshi Tsuzuki

A solar power generation system having a solar cell provided therein and which is provided with a cooling mechanism, characterized in that the cooling mechanism has a cooling system for cooling the solar cell and a memory and operation system for memorizing or operating an optimum cooling and driving state of the cooling system with respect to an output of the solar cell. The cooling system is driven based on an output of the memory and operation system.

Solar power generation system having cooling mechanism

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

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 power generation system having a solar cell provided therein and which is provided with a cooling mechanism, characterized in that the cooling mechanism has a cooling system for cooling the solar cell and a memory and operation for memorizing or operating an optimum cooling and driving state of the cooling system with respect to an output of the solar cell, wherein the cooling system is driven based on an output of the memory and operation system.

Method for controlling a solar power generation system having a cooling mechanism

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 solar cell-bearing roof includes a roof base member provided on a partition wall which partitions a building into an indoor portion and an outdoor portion, a solar cell module provided on the roof base member, and electric wiring with one end portion being electrically connected with the solar cell module. The end portion of the electric wiring is drawn to the outside from between the roof base member and the solar cell module and at an outdoor-sided position than an indoor side face of the partition wall.

Solar cell-bearing roof and method for installing solar cell-bearing roof

In a solar cell roof structure, a photovoltaic power generating apparatus, a building and a method of construction of a solar cell roof, in which a solar cell module is provided above a roof base of a building, an electrical wire for the solar cell module is provided in a space between the solar cell module and the roof base, and the electrical wire extends into a space at the back of the roof base through a through hole provided in the roof base. A base sealing member on the roof base is provided for covering the through hole and an exit is provided in the base sealing member through which the electrical wire extends into the space between the solar cell module and the roof base at a portion of the base sealing member other than a portion just over the through hole of the base sealing member. The base sealing member can include a heat-resisting or fire resistive material on the roof base for covering the through hole.

Solar cell roof structure, construction method thereof, photovoltaic power generating apparatus, and building

To optimally arrange roofing material integrated solar battery modules having a rectangular form and same size on a roof setting surface, an arrangement range in which the solar battery modules can be arranged on the roof setting surface is determined. An arranging direction of the solar battery modules is determined. The number of solar battery modules which can be arranged almost horizontally in a line in the determined arranging direction and within the arrangement range is calculated. Solar battery modules of a line in a number not more than the calculated number are combined to form a solar battery module group. The solar battery module groups are arranged to set a center of the solar battery module group within the determined arrangement range and near a line almost vertically dividing the surface into two parts. The above operations are repeated a number of times corresponding to the number of lines of solar battery module groups which can be vertically arranged in the determined arranging direction and within the arrangement range.

Solar battery module arranging method and solar battery module array

A solar cell module has an outermost surface comprising a surface member on the light receiving face side of the solar cell module, a back face comprising a back face member on the non-light receiving face side of the solar cell module, and a photovoltaic element between the surface member and the back face member. The solar cell module is characterized in that it has a porous incombustible member having a structural strength between the photovoltaic element and the back face member. A solar cell-bearing roof and a solar cell power generation system in which the solar cell module is used are also disclosed.

Solar cell module, solar cell-bearing roof and solar cell power generation system

An installation structure of a solar cell module array in which a plurality of solar cell module strings are arranged on a desired installation face is provided. The plurality of solar cell module strings have a plurality of solar cell modules. There is an inter solar cell module connection cable to electrically connect the plurality of solar cell modules, as well as a positive string cable and a negative string cable. A non-contacting means is provided such that no contact occurs between the positive string cable and the negative string cable or between the inter solar cell module connection cable and the positive string cable or/and the negative string cable. This solar cell module array installation structure excels in safety. That is, in the array installation structure, the positive and negative string cables are wired in a desirable state so that no electric short occurs between these two cables, even when a fire occurs in the vicinity of the installation face.

Growing community of inventors

Nara, Japan

Shigenori Itoyama