Photovoltaic cell module

Patent metadata

Field	Value
Publication number	US-9997658-B2
Application number	US-201415107377-A
Country	US
Kind code	B2
Filing date	Aug 15, 2014
Priority date	Dec 27, 2013
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

A photovoltaic cell module includes: a transparent upper cover plate, a first polyolefin encapsulation layer, a cell group layer, a second polyolefin encapsulation layer, and a backplane that are sequentially disposed in a laminated manner, where outer edges of the transparent upper cover plate and the backplane exceed outer edges of the first polyolefin encapsulation layer, the cell group layer, and the second polyolefin encapsulation layer, an end part sealing block is further disposed between the transparent upper cover plate and the backplane, and the end part sealing block is located at peripheries of the first polyolefin encapsulation layer, the cell group layer, and the second polyolefin encapsulation layer.

First claim

What is claimed is:

1. A photovoltaic cell module, comprising:
a body, comprising:
a transparent upper cover plate,
a first polyolefin encapsulation layer,
a cell group layer,
a second polyolefin encapsulation layer, and
a backplane; and

a frame fixed to an outside of a periphery of the body,
wherein the transparent upper cover plate, the first polyolefin encapsulation layer, the cell group layer, the second polyolefin encapsulation layer and the backplane are disposed sequentially in a laminated manner, outer edges of the transparent upper cover plate and the backplane exceed outer edges of the first polyolefin encapsulation layer, the cell group layer, and the second polyolefin encapsulation layer,
the first polyolefin encapsulation layer and the second polyolefin encapsulation layer are configured to run through ultraviolet light without significant degrading,
an end part sealing block is further disposed between the transparent upper cover plate and the backplane,
the end part sealing block is located at peripheries of the first polyolefin encapsulation layer, the cell group layer, and the second polyolefin encapsulation layer,
the frame is an integrated frame formed by bending an encapsulation bar, and
the encapsulation bar is provided with a grounding hole.

2. The photovoltaic cell module according to claim 1 , wherein the transparent upper cover plate and the backplane are both glass plates.

3. The photovoltaic cell module according to claim 2 , wherein the transparent upper cover plate is common low iron ultra-white patterned tempered glass or film coated low iron ultra-white patterned tempered glass, and the backplane is common low iron ultra-white patterned tempered glass or common tempered glass.

4. The photovoltaic cell module according to claim 1 , wherein the first polyolefin encapsulation layer and the second polyolefin encapsulation layer are thermosetting polyolefin encapsulation layers or thermoplastic polyolefin encapsulation layers.

5. The photovoltaic cell module according to claim 1 , wherein the end part sealing block is a butyl rubber member or a polyisobutylene rubber member.

6. The photovoltaic cell module according to claim 1 , wherein the photovoltaic cell module is made by laminating the transparent upper cover plate, the first polyolefin encapsulation layer, the cell group layer, the first polyolefin encapsulation layer, the backplane, and the end part sealing block.

7. The photovoltaic cell module according to claim 6 , wherein a periphery of the photovoltaic cell module is further covered with a sealing tape.

8. The photovoltaic cell module according to claim 6 , wherein the encapsulation bar has at least two predetermined bending positions, and a V-shaped groove of 90 degrees is formed in each predetermined bending position.

9. The photovoltaic cell module according to claim 6 , wherein the frame is disposed at the periphery of the photovoltaic cell module by a sealant.

10. The photovoltaic cell module according to claim 6 , wherein the frame is formed to be a frame structure, and a cross section of the frame has a U-shaped groove, wherein a groove opening width of the U-shaped groove is greater than a thickness of the photovoltaic cell module, so that the U-shaped groove covers an outer edge of the photovoltaic cell module.

11. The photovoltaic cell module according to claim 10 , wherein a thickness of the frame is 1-2 mm.

12. The photovoltaic cell module according to claim 10 , wherein a convex bar is formed on an outer surface of the frame, and the convex bar extends along a length direction of the frame.

13. The photovoltaic cell module according to claim 12 , wherein the convex bar extends along the length direction of the frame in a straight line or in a curved line.

14. The photovoltaic cell module according to claim 6 , further comprising a connection box, wherein the cell group layer leads out a bus bar between the transparent upper cover plate and the backplane, and the connection box is electrically connected to the bus bar to extract energy of the cell.

15. The photovoltaic cell module according to claim 14 , wherein the transparent upper cover plate and the backplane are formed as rectangles, three connection boxes are provided, spaced from one another and disposed on a short side of the rectangle.

Assignees

• Byd Co Ltd

Inventors

• Wang Shencun
• Sun Xiang
• Wang Shengya
• Jiang Zhanfeng

Classifications

• H01L31/0201

  Electricity · mapped topic

• Y02E10/50

  Photovoltaic [PV] energy · CPC title

• H02S40/34

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

• H01L31/048

  Electricity · mapped topic

• H02S30/10

  Frame structures · CPC title