Solar cell module

Patent metadata

Field	Value
Publication number	US-9601646-B2
Application number	US-201113637940-A
Country	US
Kind code	B2
Filing date	Apr 21, 2011
Priority date	Apr 21, 2010
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A solar cell module having high reliability by increasing heat release of a bypass diode is provided. A solar cell panel including a photoelectric conversion unit, a holding member disposed at a periphery of the solar cell panel to hold the solar cell panel, a heat release plate spaced from the solar cell panel and disposed on the holding member, and a bypass diode attached to the heat release plate so as to be spaced from the solar cell panel and electrically connected to the photoelectric conversion unit are included. An attachment surface of the bypass diode to the heat release plate is disposed to face the holding member.

First claim

The invention claimed is:

1. A solar cell module comprising:
a solar cell panel including a photoelectric conversion unit;
a holding member disposed at a periphery of the solar cell panel to hold the solar cell panel;
a heat release plate spaced from the solar cell panel and disposed on the holding member;
a bypass diode attached to the heat release plate so as to be spaced from the solar cell panel and electrically connected to the photoelectric conversion unit;
a housing storing the bypass diode and including a first through-hole in which the heat release plate is disposed; and
a resin layer disposed to cover a portion of the heat release plate positioned outside the housing,
wherein the heat release plate includes a first main surface on which the bypass diode is attached, and a second main surface that is opposite the first main surface, exposed from the housing, and fixed to the holding member.

2. The solar cell module according to claim 1 , wherein the holding member comprises a fitting unit into which the solar cell panel fits, and a fixing unit connected to the fitting unit and to which the bypass diode is fixed, and the fixing unit comprises an inner peripheral surface positioned inside from an end of the solar cell panel and disposed to face the bypass diode.

3. The solar cell module according to claim 1 , wherein an entire surface of the second main surface of the heat release plate is in contact with an inner peripheral surface of the holding member.

4. The solar cell module according to claim 1 , wherein a thermal conductivity of the heat release plate is greater than a thermal conductivity of the housing.

5. The solar cell module according to claim 1 , further comprising:
a resin layer disposed between the heat release plate and the holding member,
wherein the resin layer comprises a resin material and at least any one of metallic particles and ceramic particles.

6. The solar cell module according to claim 1 , wherein a thickness of the heat release plate is greater than a thickness of the housing.

7. The solar cell module according to claim 1 , wherein a distance D 1 from the bypass diode to the holding member is smaller than a distance D 2 from the bypass diode to the solar cell panel.

8. The solar cell module according to claim 1 , further comprising:
an insulating layer disposed between the heat release plate and the holding member.

9. The solar cell module according to claim 1 , wherein the heat release plate comprises a resin material and a conductive filler that contains one or more of boron nitride, aluminum nitride, and alumina.

10. The solar cell module according to claim 9 , wherein the heat conductive filler further comprises one or more fibers connecting the first main surface and the second main surface of the heat release plate.

11. The solar cell module according to claim 1 , further comprising:
an insulating tape disposed between the bypass diode and the heat release plate.

12. The solar cell module according to claim 1 , wherein the heat release plate is disposed from an inside the first through-hole to an outside of the first through-hole that is outside the housing, such that the second main surface is positioned outside the housing.

13. A solar cell module comprising:
a solar cell panel including a photoelectric conversion unit;
a holding member disposed at a periphery of the solar cell panel to hold the solar cell panel;
a heat release plate spaced from the solar cell panel and disposed on the holding member;
a bypass diode attached to the heat release plate so as to be spaced from the solar cell panel and electrically connected to the photoelectric conversion unit;
a housing storing the bypass diode and including a first through-hole in which the heat release plate is disposed, and a rear surface side of the housing being fixed to a predetermined position of a non-light receiving surface side of the solar cell panel using an adhesive; and
a resin layer disposed to cover a portion of the heat release plate positioned outside the housing,
wherein the heat release plate includes a first main surface, on which the bypass diode is attached, and a second main surface that is opposite the first main surface, exposed from the housing, and fixed to the holding member.

14. A solar cell module comprising:
a solar cell panel including a photoelectric conversion unit;
a holding member disposed at a periphery of the solar cell panel to hold the solar cell panel;
a heat release plate spaced from the solar cell panel and disposed on the holding member;
a bypass diode attached to the heat release plate so as to be spaced from the solar cell panel and electrically connected to the photoelectric conversion unit;
a housing storing the bypass diode and including a first through-hole in which the heat release plate is disposed;
an insulating layer disposed between the heat release plate and the holding member; and
a resin layer disposed to cover a portion of the heat release plate positioned outside the housing and the insulating layer;
wherein the heat release plate includes a first main surface, on which the bypass diode is attached, and a second main surface that is opposite the first main surface, exposed from the housing, and fixed to the holding member.

Assignees

• Yamashita Mitsuo
• Uchida Kouki
• Kyocera Corp

Inventors

• Yamashita Mitsuo
• Uchida Kouki

Classifications

• Y02E10/50

  Photovoltaic [PV] energy · CPC title

• H02S40/345

  with cooling means associated with the electrical connection means, e.g. cooling means associated with or applied to the junction box (cooling means for PV cells H10F77/63, for PV modules H02S40/42) · CPC title

• H01L31/02013

  Electricity · mapped topic

• H01L31/048 Primary

  Electricity · mapped topic

• H02S40/34

  comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes · CPC title