Thin film solar battery module

• US 6,822,157 B2
• Filed: 10/15/2002
• Issued: 11/23/2004
• Est. Priority Date: 10/15/2001
• Status: Expired due to Fees

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Fujioka, Yasushi
• Primary Examiner(s): DIAMOND, ALAN D
• Application Number:
  US10/270,184
• Publication Number:
  US 20030070706A1
• Time in Patent Office: 770 Days
• Field of Search: 136/251, 136/256, 136/246, 136/259, 136/258, 136/261, 257/53, 257/433, 257/434, 257/436, 257/437
• US Class Current: 136/251
• CPC Class Codes: H01L 31/048 Encapsulation of modules
• CPC Class Codes: H01L 31/0488 Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

In a thin film solar battery module, a flat glass substrate with non-monocrystal silicon type thin film solar cells formed thereon, a space layer, and a chilled figured glass are sequentially stacked in this order. The chilled figured glass has fine unevenness on at least its incident side surface to achieve an anti-glare effect.

Claims

1. A thin film solar battery module comprising:

a flat glass substrate with non-monocrystal silicon thin film solar cells formed thereon, a space layer, and a chilled figured glass, stacked in this order so that the flat glass substrate and the chilled figured glass are on a common side of the thin film solar cells, and

wherein said chilled figured glass has fine unevenness on at least its light incident side surface to achieve an anti-glare effect.

2. The thin film solar battery module according to claim 1, wherein an arithmetic mean surface roughness Ra of said fine unevenness is within a range of 0.001 mm-0.3 mm.

3. The thin film solar battery module according to claim 1, wherein said chilled figured glass is a low iron glass plate having an average thickness of more than 3 mm.

4. The thin film solar battery module according to claim 1, wherein said flat glass substrate is a flat soda lime glass having a thickness of less than 3 mm.

5. The thin film solar battery module according to claim 1, wherein said flat glass substrate is a flat glass that is not chilled.

6. The thin film solar battery module according to claim 1, wherein said space layer is a dry air layer, a dry inert gas layer or a vacuum layer.

7. The thin film solar battery module according to claim 1, wherein at least one of a surface of said chilled figured glass and a surface of said glass substrate on the space layer side is provided with an anti-reflection film.

8. The thin film solar battery module according to claim 1, wherein a thermal insulation member is provided on the back side of said non-monocrystal silicon thin film solar cells.

9. The thin film solar battery module of claim 1, wherein said space layer comprises an air gap which may optionally be filled with gas.

10. A thin film solar battery module comprising:

a non-chilled flat glass substrate with thin film solar cells formed thereon, a thermally insulating gap, and a chilled figured glass, stacked in this order so that the non-chilled flat glass substrate and the chilled figured glass are on a common side of the solar cells, and

wherein said chilled figured glass has fine unevenness on at least its light incident side surface to achieve an anti-glare effect.

11. The thin film solar battery module of claim 10, wherein said thermally insulating gap is filled with an inert gas.

12. The thin film solar battery module according to claim 10, wherein an arithmetic mean surface roughness Ra of said fine unevenness is within a range of 0.001 mm to 0.3 mm.

13. The thin film solar battery module according to claim 10, wherein said chilled figured glass is a low iron glass plate having an average thickness of more than 3 mm.