Photovoltaic cell tab and method and system for forming photovoltaic cell tabs
A photovoltaic cell and connecting sheet technology, applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problems of inability to achieve optical purposes and difficult to attach, and achieve the effects of increasing light capture, reducing occlusion, and reducing series resistance.
Inactive Publication Date: 2014-01-29
ATS AUTOMATION TOOLING SYSTEMS
View PDF3 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
An additional problem is that the tabs undergo thermal expansion and contraction during any thermal method of attaching the tabs to the battery, which can cause stress on the battery due to differences in thermal expansion and contraction
However, this option can have a detrimental effect on attaching the tab to the rear contact, where the face fails to fulfill an optical purpose but provides a surface that is more difficult to attach to the battery rear contact
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 Construction
[0037] Generally, the present disclosure provides methods and systems for forming photovoltaic (PV) cell connection sheets and the cell connection sheets themselves. In the process of assembling flat sheet photovoltaic or solar modules, multiple sets of PV cells are connected in series to provide a series string. Multiple strings can then be combined to form larger series strings and / or parallel / series structures, which are integrated into solar modules. PV cells are connected by conductors, which are often referred to as tabs, which are typically connected to the front contact of the PV cell at one end and to the rear contact of the PV cell at the other end. By repeating this structure for a series of multiple batteries in a process called tabbing and stringing, multiple strings of batteries are formed. The machine applied in this process is known as a sliver-making machine or a combined string-making machine and stringer (CTS).
[0038] One consideration when manufacturing PV...
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
| Property | Measurement | Unit |
|---|---|---|
| width | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| width | aaaaa | aaaaa |
Login to View More
Abstract
A photovoltaic cell tab including: a front contact portion having a first profile; and a back contact portion having a second profile, wherein the first profile or second profile are complex shapes that may be dissimilar to each other. A system and method for forming photovoltaic cell tabs comprising: a feeding mechanism to feed wire; a first forming tool to trim and shape the wire to tabs; and a placement tool configured to match a profile of the tabs and place and attach the tabs on photovoltaic cells. In the system and method, the tabs may be formed to have a complex profile or shape that will affect incident light and / or mechanical or other characteristics of the tabs.
Description
[0001] Cross references to related applications [0002] This application claims priority rights for U.S. Provisional Patent Application 61 / 470,400 filed on March 31, 2011, which is incorporated herein by reference. Technical field [0003] The present disclosure generally relates to photovoltaic cells. More specifically, the present disclosure relates to methods and systems for forming photovoltaic cell tabs. Background technique [0004] A typical photovoltaic cell has a photosensitive substrate and converts light into energy. A conductor, also known as a tab, is attached to the photovoltaic cell and is typically made of flat wire or ribbon wire. The flat wire is pulled from the reel, straightened, flattened, and pre-tensioned, and then cut to a certain length to form a separate connecting piece. In some cases, Z-shaped bends may be formed in the ribbon line to accommodate the transition from the front of one battery to the rear of an adjacent battery. Traditional practice has...
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): H01L31/0465H01L31/18H01L31/0224H01L31/0232H01L31/04
CPCY02E10/52H01L31/0525H01L31/0508H01L31/0547Y10T29/49174Y10T29/53213
Inventor 杰拉尔德.R.伍顿
Owner ATS AUTOMATION TOOLING SYSTEMS