Bent step welding strip used for photovoltaic assembly and processing technology of welding strip
A processing technology and photovoltaic module technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of fragile cells and high pressure
Active Publication Date: 2017-01-11
SUZHOU YOURBEST NEW TYPE MATERIALS
View PDF12 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The solder ribbons of these two methods are all planar structures. During the superposition process of EVA and glass in the subsequent process, due to the local concentration of pressure, the pressure on the point where the bus ribbon contacts the cells is too high, and the cells are easily broken.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment approach
[0028] In order to achieve the purpose of the present invention, as shown in the figure, an embodiment of the present invention is:
[0029] A bent step welding ribbon for photovoltaic modules, characterized in that it includes: a first fold 1, a second fold 3 and a step portion 2, one end of the step portion 2 is connected to the first fold 1, and the step portion The other end of 2 is connected with the second folded edge 3 .
[0030] The beneficial effect of adopting the above technical solution is: there is a stepped portion between the first folded edge and the second folded edge, at the position where the solder ribbon contacts the cell, the lower plane of the stepped portion can fully contact the back plate or insulating material, forming Support, because there is a certain gap between the upper plane of the step and the back plate, it avoids the pressure from concentrating on the edge of the cell, and can disperse the pressure, which can effectively relieve the local p...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a bent step welding strip used for a photovoltaic assembly. The welding strip is characterized by comprising a first folded edge, a second folded edge and a step part. One end of the step part is connected with the first folded edge, and the other end of the step part is connected with the second folded edge. The welding strip has the advantages that the step part is arranged between the first folded edge and the second folded edge, due to the contact position of the welding strip and a battery piece, the lower plane of the step part can make full contact with a back plate or insulating material to form supporting, a certain gap is formed between the upper plane of the step part and the back plate so that pressure can be concentrated at one point on the edge of the battery piece and pressure can be dispersed, local pressure can be effectively relieved, and breaking of the battery piece is reduced.
Description
technical field [0001] The invention relates to the field of welding strips, in particular to a bent step welding strip for photovoltaic modules and a processing technology thereof. Background technique [0002] At present, the photovoltaic modules on the market are connected by ribbons. The cells are connected in series with interconnection ribbons, and then multiple interconnection ribbons are welded to the busbars. Finally, two busbars are connected to each other at a 90° angle. Lap welding to form an L-shaped ribbon or a single bent L-shaped ribbon to lead the current to the junction box. The ribbons of these two methods are all planar structures. During the superposition process of EVA and glass in the subsequent process, due to the local concentration of pressure, the pressure on the point where the confluence ribbon contacts the cells is too high, and the cells are easily broken. Contents of the invention [0003] In order to overcome the disadvantages of the above...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05
CPCY02E10/50H01L31/05
Inventor 肖锋王兴
Owner SUZHOU YOURBEST NEW TYPE MATERIALS