Heat dissipation sheet for the back face of solar battery module, and solar battery module using the same

• US 20110100425A1
• Filed: 11/01/2010
• Published: 05/05/2011
• Est. Priority Date: 11/02/2009
• Status: Abandoned Application

• Current Assignee: KEIWA, Inc.
• Original Assignee: KEIWA, Inc.
• Inventors: Kawashima, Koji, Kobayashi, Toshiro, Osamura, Keiichi
• Application Number:
  US12/925,870
• Publication Number:
  US 20110100425A1
• Time in Patent Office: Days
• US Class Current: 136/246
• CPC Class Codes: H01L 31/048 Encapsulation of modules
• CPC Class Codes: H01L 31/049 Protective back sheets
• CPC Class Codes: H01L 31/052 Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells cooling means in combination with the PV module H02S40/42
• CPC Class Codes: H02S 40/42 Cooling means cooling means directly associated or integrated with the PV cell H01L31/052
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

A heat dissipation sheet for the back face of a solar battery module includes a heat dissipation film, and an adhesive compound layer laminated on one face side of the heat dissipation film. The heat dissipation film preferably has a fine bumpy shape on the entire surface of another face. The heat dissipation film preferably includes a substrate layer in which the adhesive compound layer is laminated on one face side, and a heat dissipation layer laminated on another face side of the substrate layer. The heat dissipation layer preferably includes fine particles, and a binder for the fine particles.

Claims

1. A heat dissipation sheet for the back face of a solar battery module comprising a heat dissipation film, and an adhesive compound layer laminated on one face side of the heat dissipation film.

2. The heat dissipation sheet for the back face of a solar battery module according to claim 1, wherein the heat dissipation film has a fine bumpy shape on the entire surface of another face.

3. The heat dissipation sheet for the back face of a solar battery module according to claim 1, wherein the heat dissipation film comprises

a substrate layer in which the adhesive compound layer is laminated on one face side, and

a heat dissipation layer laminated on another face side of the substrate layer.

4. The heat dissipation sheet for the back face of a solar battery module according to claim 3, wherein the heat dissipation layer comprises fine particles, and a binder for the fine particles.

5. The heat dissipation sheet for the back face of a solar battery module according to claim 4, wherein the fine particles are at least one type of beads selected from metal beads and inorganic oxide beads.

6. The heat dissipation sheet for the back face of a solar battery module according to claim 3, wherein the heat dissipation layer comprises a vapor-deposited inorganic oxide.

7. The heat dissipation sheet for the back face of a solar battery module according to claim 3, wherein the heat dissipation layer is a metal foil.

8. The heat dissipation sheet for the back face of a solar battery module according to claim 1 further comprising a release sheet covering one face of the adhesive compound layer.

9. A solar battery module comprising:

a transparent substrate;

a first filler layer;

solar battery cells as a photovoltaic device;

a second filler layer;

a back sheet; and

a heat dissipation sheet for the back face of a solar battery module, laminated in this order from the front face side,

wherein the heat dissipation sheet for the back face of a solar battery module comprises a heat dissipation film, and an adhesive compound layer laminated on one face side of the heat dissipation film, and is attached via the adhesive compound layer thereof on the back face of the back sheet.