Double-glass photovoltaic module

Patent metadata

Field	Value
Publication number	US-10187008-B2
Application number	US-201415107557-A
Country	US
Kind code	B2
Filing date	Aug 15, 2014
Priority date	Dec 27, 2013
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A double-glass photovoltaic module includes: a body, where the body includes a first glass layer, a first encapsulation layer, a cell group layer, a second encapsulation layer, and a second glass layer that are sequentially disposed in a laminated manner, the cell group layer extracts a current by using a bus bar, and the bus bar is led out between the first glass layer and the second glass layer and from an edge of the body; a frame, encapsulated at a periphery of the body by a sealant and having a notch; and a connection box, disposed at the notch, and sealed and connected to the body the frame, and the bus bar is electrically connected to the connection box.

First claim

What is claimed is:

1. A double-glass photovoltaic module, comprising:
a body, comprising a first glass layer, a first encapsulation layer, a cell group layer, a second encapsulation layer, and a second glass layer that are sequentially disposed in a laminated manner, wherein the cell group layer extracts a current by a bus bar, and the bus bar is led out between the first glass player and the second glass layer and from an edge of the body;
a frame, encapsulated at a periphery of the body, and having a notch; and
a connection box, disposed at the notch, sealed and connected to the body and the frame, and the bus bar is electrically connected to the connection box;
wherein the connection box comprises a case having a chamber and at least two partition plates dividing the chamber into at least three sub-chambers;
at least two threading holes are formed on side walls of two outermost sub-chambers of the at least three sub-chambers, and the bus bar runs through the at least two threading holes to enter the chamber.

2. The double-glass photovoltaic module according to claim 1 , wherein multiple connection boxes are provided and spaced from one another, every two adjacent connection boxes are connected by an encapsulation connector, and the encapsulation connector encapsulates an outer edge, corresponding to the notch, of the body.

3. The double-glass photovoltaic module according to claim 2 , wherein the frame is an aluminum part, the encapsulation connector is an insulator, and the frame is provided with a grounding hole.

4. The double-glass photovoltaic module according to claim 2 , wherein the frame and the encapsulation connector are both aluminum parts, and each encapsulation connector between every two adjacent connection boxes is provided with one grounding hole.

5. The double-glass photovoltaic module according to claim 2 , wherein the frame is an insulator, and the encapsulation connector is an insulator.

6. The double-glass photovoltaic module according to claim 1 , wherein the body and the frame are both formed as rectangles, and the notch is provided on a short side of the frame.

7. The double-glass photovoltaic module according to claim 1 , wherein the connection box is clamped to an outer edge of the body, and sealed and connected to the frame by a sealant.

8. The double-glass photovoltaic module according to claim 7 , wherein the connection box is glued to the first glass layer and the second glass layer.

9. The double-glass photovoltaic module according to claim 7 , wherein two clamping feet are disposed at one side, facing the body, of the connection box, and clamped to the outer edge of the body.

10. The double-glass photovoltaic module according to claim 1 , further comprising a surface mount thin sheet diode, wherein the thin sheet diode is welded to the bus bar and is laminated between the first glass layer and the second glass layer.

11. The double-glass photovoltaic module according to claim 1 , 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 body, so that the U-shaped groove covers an outer edge of the body.

12. The double-glass photovoltaic module according to claim 11 , wherein the frame is an integrated frame formed by bending an encapsulation bar.

13. The double-glass photovoltaic module according to claim 12 , wherein a thickness of the frame is 1-2 mm, and the frame is fastened to the periphery of the body by using silica gel, butyl rubber, or a double faced adhesive tape.

14. The double-glass photovoltaic module according to claim 12 , wherein a convex bar is formed on an outer surface of the frame, wherein the convex bar extends along a length direction of the frame.

15. The double-glass photovoltaic cell module according to claim 1 , wherein the at least three sub-chambers comprise two outermost sub-chambers and a middle sub-chamber, and a diode is disposed inside the middle sub-chamber.

16. The double-glass photovoltaic cell module according to claim 15 , wherein the connection box further comprises a conductive block disposed inside the chamber and running through the at least three sub-chambers, and the bus bar is welded with conductive block.

17. The double-glass photovoltaic cell module according to claim 16 , wherein the diode is connected to the conductive block.

Assignees

• Byd Co Ltd

Inventors

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

Classifications

• H02S40/34 Primary

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

• Y02E10/50

  Photovoltaic [PV] energy · CPC title

• H02S30/10

  Frame structures · CPC title

• H01L31/0488

  Electricity · mapped topic

• H01L31/044

  Electricity · mapped topic