Solar cell structural body, solar cell array and sunlight power generation system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-031/048
H01L-031/042
출원번호
US-0158848
(2002-06-03)
우선권정보
JP-0167332 (2001-06-01)
발명자
/ 주소
Matsushita, Masaaki
Takabayashi, Akiharu
Makita, Hidehisa
Mukai, Takaaki
Itoyama, Shigenori
출원인 / 주소
Canon Kabushiki Kaisha
대리인 / 주소
Fitzpatrick, Cella, Harper & Scinto
인용정보
피인용 횟수 :
13인용 특허 :
1
초록▼
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
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 9×10 3 to 120×10 3 Ω·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.
대표청구항▼
1. 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 said solar cell contacts said concrete retaining body, characterized
1. 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 said solar cell contacts said concrete retaining body, characterized in that said concrete has a resistivity in a range of from 9×10 3 to 120×10 3 Ω·cm, wherein the relation equation t>1307.9(0.71+0.016×θ)/(d×g×cos θ) is established, with d being the density of said concrete retaining body measured in Kg/m 3 , θ being the inclination angle of said concrete retaining body from a ground face, t being the thickness of said concrete retaining body measured in meters, and g being the acceleration of gravity measured in m/s 2 . 2. The solar cell structural body according to claim 1, wherein the water to cement ratio of said concrete upon the production thereof is less than 40% by weight. 3. The solar cell structural body according to claim 1, wherein the mixing ratio of said aggregate to said cement is at least 1:4 by weight. 4. The solar cell structural body according to claim 1, wherein said cement comprises a Portland cement or an alumina cement. 5. The solar cell structural body according to claim 1, wherein said concrete retaining body comprises a concrete hardened in atmospheric air. 6. The solar cell structural body according to claim 1, wherein said concrete retaining body serves as a back face member or a trestle for said solar cell. 7. The solar cell structural body according to claim 1, wherein said concrete retaining body does not contain a reinforcement. 8. The solar cell structural body according to claim 1, wherein said solar cell has two electrically conductive portions having a different polarity, one on the light receiving face side and the other on the non-light receiving face side. 9. A solar cell array having a plurality of solar cell structural bodies connected with each other in series connection, each of said plurality of solar cell structural bodies 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 said solar cell contacts said concrete retaining body, wherein said concrete has a resistivity in a range of from 9×10 3 to 120×10 3 Ω·cm, and wherein the relation equation t>1307.9(0.71+0.016×θ)/(d×g×cos θ) is established, with d being the density of said concrete retaining body measured in Kg/m 3 , θ being the inclination angle of said concrete retaining body from a ground face, t being the thickness of said concrete retaining body measured in meters, and g being the acceleration of gravity measured in m/s 2 . 10. The solar cell array according to claim 9, wherein a positive electrode terminal or a negative electrode terminal of said solar cell array is electrically grounded. 11. A sunlight power generation system having a connection body in which a plurality of solar cell structural bodies are electrically connected and said connection body has a positive electrode terminal and a negative electrode terminal which are connected to an inverter having a ground sensor accommodated therein, each of said plurality of solar cell structural bodies 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 said solar cell contacts said concrete retaining body, wherein said concrete has a resistivity in a range of from 9×10 3 to 120×10 3 Ω·cm, and wherein the relation equation t>1307.9(0.71+0.016×θ)/(d×g×cos θ) is established, with d being the density of said concrete retaining body measured in Kg/m 3 , θ being the inclinatio n angle of said concrete retaining body from a ground face, t being the thickness of said concrete retaining body measured in meters, and g being the acceleration of gravity measured in m/s 2 . 12. The sunlight power generation system according to claim 11, wherein each of said plurality of solar cell structural bodies has a ground current I Ieak of less than 100 mA.
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이 특허에 인용된 특허 (1)
Arthur John R. (Corvallis OR) Graupner Robert K. (Portland OR) Monson Tyrus K. (Corvallis OR) Van Vechten James A. (Corvallis OR) Wolff Ernest G. (Corvallis OR), Concrete solar cell.
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