Solar cell module

Patent metadata

Field	Value
Publication number	US-9368665-B2
Application number	US-201414534479-A
Country	US
Kind code	B2
Filing date	Nov 6, 2014
Priority date	May 9, 2012
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A solar cell module includes multiple rectangular solar cells each with chamfered corner portions, wiring members each electrically connecting adjacent ones of the solar cells to each other, and a protective member on a light-receiving surface side of the solar cells. The solar cells are arranged in matrix with spaces therebetween. The wiring member has a reflective surface in a region surrounded by the corner portions of the multiple solar cells. The reflective surface reflects light entering from the light-receiving surface side toward the protective member.

First claim

The invention claimed is:

1. A solar cell module comprising:
a plurality of rectangular solar cells each with chamfered corner portions, the solar cells being arranged in matrix with spaces there between, the solar cells including a first solar cell, a second solar cell adjacent to the first solar cell in a first direction and a third solar cell adjacent to the first solar cell in a second direction orthogonal to the first direction;
a wiring member electrically connecting the first and second solar cells adjacent to each other; and
a protective member arranged at a light-receiving surface side of the solar cells, wherein
the wiring member has a reflective surface that is located in a corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells, and the reflective surface is configured to reflect light entering from the light-receiving surface side toward the protective member,

wherein
the reflective surface extends over to the corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells on a first side in the second direction.

2. The solar cell module according to claim 1 , wherein
the solar cell includes
a photoelectric conversion body, and
first and second electrodes placed on one main surface of the photoelectric conversion body.

3. The solar cell module according to claim 2 , wherein
the wiring member includes a protrusion portion protruding to the corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells.

4. The solar cell module according to claim 2 , wherein
the wiring members each include
a wiring-member main body electrically connecting the solar cells adjacent in the first direction, and
a reflective member provided on the wiring-member main body and forming the reflective surface, and

the reflective member of one of the wiring members and the reflective member of another one of the wiring members which is adjacent to the one wiring member in the second direction are provided integrally.

5. The solar cell module according to claim 2 , wherein
the wiring members each include
a wiring-member main body electrically connecting the solar cells adjacent in the first direction, and
a reflective member provided on the wiring-member main body and forming the reflective surface, and

one of the wiring members and another one of the wiring members which is adjacent to the one wiring member in the second are provided integrally, including their wiring-member main bodies.

6. The solar cell module according to claim 1 , wherein
the wiring member includes a protrusion portion protruding to the corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells.

7. The solar cell module according to claim 1 , wherein
the wiring members each include
a wiring-member main body electrically connecting the solar cells adjacent in the first direction, and
a reflective member provided on the wiring-member main body and forming the reflective surface, and

the reflective member of one of the wiring members and the reflective member of another one of the wiring members which is adjacent to the one wiring member in the second direction are provided integrally.

8. The solar cell module according to claim 1 , wherein the reflective surface does not extend over to the corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells on a second side in the second direction.

9. The solar cell module according to claim 1 , wherein
the wiring members each include
a wiring-member main body electrically connecting the solar cells adjacent in the first direction, and
a reflective member provided on the wiring-member main body and forming the reflective surface, and

one of the wiring members and another one of the wiring members which is adjacent to the one wiring member in the second direction are provided integrally, including their wiring-member main bodies.

10. A solar cell module comprising:
a plurality of rectangular solar cells each with chamfered corner portions, the solar cells being arranged in matrix with spaces there between, the solar cells including a first solar cell, a second solar cell adjacent to the first solar cell in a first direction and a third solar cell adjacent to the first solar cell in a second direction orthogonal to the first direction;
a wiring member electrically connecting the first and second solar cells adjacent to each other; and
a protective member arranged at a light-receiving surface side of the solar cells, wherein
the wiring member has a reflective surface that is located in a corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells,
the reflective surface is configured to reflect light entering from the light-receiving surface side toward the protective member, and extends over to the corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells on a first side in the second direction,
and wherein
the wiring member includes a resin sheet, and a conductive layer on a surface of the resin sheet on a side of the solar cells.

11. The solar cell module according to claim 10 , wherein
the solar cell includes
a photoelectric conversion body, and
first and second electrodes placed on one main surface of the photoelectric conversion body.

12. The solar cell module according to claim 11 , wherein
the wiring member includes a protrusion portion protruding to the corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells.

13. The solar cell module according to claim 11 , wherein
the wiring members each include
a wiring-member main body electrically connecting the solar cells adjacent in the first direction, and
a reflective member provided on the wiring-member main body and forming the reflective surface, and

the reflective member of one of the wiring members and the reflective member of another one of the wiring members which is adjacent to the one wiring member in the second direction are provided integrally.

14. The solar cell module according to claim 11 , wherein
the wiring members each include
a wiring-member main body electrically connecting the solar cells adjacent in the first direction, and
a reflective member provided on the wiring-member main body and forming the reflective surface, and

one of the wiring members and another one of the wiring members which is adjacent to the one wiring member in the second are provided integrally, including their wiring-member main bodies.

15. The solar cell module according to claim 10 , wherein
the wiring member includes a protrusion portion protruding to the corner-surrounded region surrounded by the chamfered corner portions of the first, second and third solar cells.

16. The solar cell module according to claim 10 , wherein
the wiring members each include
a wiring-member main body electrically connecting the solar cells adjacent in the first direction, and
a reflective member provided on the wiring-member main body and forming the reflective surface, and

the reflective member of one of the wiring members and the reflective member of another one of the wiring members which is adjacent to the one wiring member in the second direction are provided integrally.

17. The solar cell module according to claim 10 , wherein the reflective

Assignees

• Sanyo Electric Co
• Panasonic Ip Man Co Ltd

Inventors

• Fukumochi Shuji
• Ono Masayoshi

Classifications

• Y02E10/52

  PV systems with concentrators · CPC title

• H10F19/908

  for back-contact photovoltaic cells · CPC title

• H10F19/904

  characterised by the shapes of the structures · CPC title

• H10F19/80

  Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells · CPC title

• H10F77/488 Primary

  Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection · CPC title