CN202685522U - Solar battery electrode printing screen board - Google Patents
Solar battery electrode printing screen board Download PDFInfo
- Publication number
- CN202685522U CN202685522U CN2011205447649U CN201120544764U CN202685522U CN 202685522 U CN202685522 U CN 202685522U CN 2011205447649 U CN2011205447649 U CN 2011205447649U CN 201120544764 U CN201120544764 U CN 201120544764U CN 202685522 U CN202685522 U CN 202685522U
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- solar battery
- electrode
- printing screen
- grid line
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a solar battery electrode printing screen board which comprises a board body, main grid lines and fine grid lines. The solar battery electrode printing screen board is characterized in that array points which electric conducting silver starch can not penetrate through are arranged on the main grid lines. The metal printing screen board can save electric conducting slurry on the front face and the back face of a solar battery, and reduce dropping probability of an electrode and fragment probability of battery pieces.
Description
Technical field
A kind of electrode of solar battery Printing screen that the utility model relates to belongs to solar energy electrode print field.
Background technology
Serigraphy is that silk fabrics, synthetic fabrics or woven wire are stretched tight on screen frame, adopts manual method of carving paint film or photochemistry plate-making to make screen printing forme.Modern screen printing technique then is to utilize photosensitive material to make screen printing forme (making the silk screen hole of picture and text part on the screen printing forme is through hole, and the silk screen hole of non-graphic part is plugged) by photomechanical method.By the extruding of scraper plate, printing ink is transferred on the stock by the mesh of picture and text part during printing, formed the picture and text the same with original copy.Screen printing apparatus is simple, easy to operate, prints, makes a plate and be simple and easy and with low cost, strong adaptability.
Serigraphy originates from China the earliest, apart from modern existing more than 2,000 year history.Folder a word used in person's names printing method has just appearred period as far back as the Qin Han of Ancient Times in China.Generally popular to the Eastern Han Dynasty folder a word used in person's names batik method, and the level of printed product also is improved.To Sui Dynasty great cause between year, people begin to carry out stamp with the frame of the tulle that stretches tight, and make folder a word used in person's names printing technology develop into screen printing.According to history records records, the exquisite dress ornament of wearing in the imperial palace during Tang Dynasty just has to be printed in this way.To the Song dynasty serigraphy development has been arranged again, and improved the oil paint of original use, beginning adds the rubber powder of starch based in dyestuff, make it become slurry and carry out serigraphy, makes the color of serigraphy product more gorgeous.
Screen printing is a greatly invention of China.U.S.'s " serigraphy " magazine had such commentary to Chinese screen printing technique: " prove that on evidence Chinese just used horse-hair and template in the past in bimillennium.The uniforms card at Ming Dynasty's initial stage understands their competitive spirit and process technology." invention of screen printing, promoted the development of the human material progresses in the world.Today after bimillennium, the screen printing technique development is perfect, has now become an indispensable part among the human lives.
Serigraphy not only adapts to general paper printing, and adaptability is very extensive.Such as: pottery, glass, printed substrate etc.Quality according to stock is different, just is not quite similar during printing, although inseparable inner link is arranged between each series, because of stock quality different (being that chemical property is different with physical property), its particularity is separately arranged again separately.So people by the stock different demarcation are usually: several large classes such as paper printing, Plastic printing, ceramic-like printing, category of glass printing, wiring board printing, metal species printing, textile printing.So just formed relatively independent print system separately.
One of process for manufacturing circuit board, on the screen cloth of existing negativity pattern, scrape with scraper and to extrude an amount of printing ink (namely hindering agent), see through local screen cloth and form positive pattern, printing on the smooth copper face of substrate, consist of a kind of resistance agent of covering, for follow-up optionally etching or electroplating processes are prepared in advance.The mode of this transfer is commonly referred to as " screen painting " and claims again " serigraphy ".
Solar cell is the device that directly light energy conversion is become electric energy by photoelectric effect or Photochemical effects, and wherein crystal silicon solar energy battery is that development is the most ripe at present, and it occupies leading position in actual applications.Electrode of solar battery is requisite parts in the application of battery as a part of semiconductor devices crystal silicon solar energy battery.The electric current that inside battery produces all needs electrode to collect and it is drawn, in order to be connected with external circuit; In addition, electrode also has tests sub-sieve to solar cell, and whole solar cell welding is interconnected, thus the functions such as increase power output.
Although the main grid line electrode body resistance of traditional structure is little, but the contact area of itself and silicon plate is excessive, the compound area of excessive electrode and silicon (such as Ag-Si), after the sintering cooling, increased to a certain extent the degree of crook (the electrode metal material is different from the thermal coefficient of expansion of silicon chip, and after the sintering cooling, buckling phenomenon can appear in cell piece) of cell piece, consequent stress easily causes coming off, relaxing of battery electrode main grid line, has a strong impact on the performance of cell piece; In addition, the cost of electrode raw material (such as conductive silver paste) is higher, is unfavorable for large-scale production.Therefore, reducing cost, improve the performance of solar battery sheet, is the technical problem that needs to be resolved hurrily in the industry.
The utility model content
The technical problems to be solved in the utility model provides a kind of electrode of solar battery Printing screen, and it can effectively be saved the positive back side of solar cell electrocondution slurry, reduce the fragment rate of come off probability and the cell piece of electrode.
In order to solve the problems of the technologies described above, the technical scheme that the utility model is taked is as follows:
A kind of electrode of solar battery Printing screen comprises plate body, main grid line and thin grid line, it is characterized in that, is provided with the array point that conductive silver paste can't see through at the main grid line.
The graphics shape of described array point is circle, rectangle, triangle, square, rhombus or polygon.
Described array point be shaped as circle, circular diameter is 50um～1mm.
Described round diameter is 50um, and the center of circle spacing of adjacent circle is 125um, and described array point be expert at is 60 ° of angles with main grid line parallel, column and main grid line main body.
Described array point be shaped as rectangle, the length of side of rectangle is 50um～1mm; Described array point be expert at is 45° angle with main grid line parallel, column and main grid line main body.
Described array point be shaped as triangle, the leg-of-mutton length of side is 50um～1mm; Described array point be expert at is 60 ° of angles with main grid line parallel, column and main grid line main body.
Described array point is identical with the web plate plate body material, is metal material.
Described Printing screen by laser cutting, electroforming or etch process or wherein the combination of several techniques be made.
Described mask plate directly is fixed on the screen frame.
Described mask plate is fixed on the screen frame after by screen tension, and described silk screen is polyester net or wire.
The cell piece electrode that the utility model printing obtains can guarantee the unimpeded of electrode main grid line, when not affecting the cell piece performance, can effectively save expensive printing slurry, reduces production costs; In addition, because the minimizing of main grid line electrocondution slurry, behind the sintering electrode also can effectively be weakened from the stress that silicon face produces owing to the coefficient of expansion is different, and the adhesion between electrode and the silicon chip is stronger, thereby has reduced the coming off and the probability of cell piece fragmentation of bending, electrode of silicon chip.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Fig. 1 is the partial enlarged drawing of Fig. 2;
Fig. 2 is the schematic diagram of electrode of solar battery Printing screen;
Fig. 3 directly is fixed on the web plate on the screen frame;
Fig. 4 stretches tight to be fixed on web plate on the screen frame behind the net;
1 is that array point, 2 is the partial structurtes of web plate among the figure.
The specific embodiment
Embodiment 1:
Figure 2 shows that 125 * 125 polycrystal silicon cell electrode Printing screen schematic diagrames; Figure 1 shows that a kind of structure enlarged diagram of 2 part main grid lines in the Printing screen shown in Figure 2.Described web plate is provided with the array point 1 that conductive silver paste can't see through at the main grid line.Described array point is identical with the web plate plate body material, is stainless steel material, and the grid line structure of plate body forms by laser cutting parameter; The graphics shape of array point 1 is circular on the described web plate, and diameter is 50um, and the center of circle spacing of any two adjacent circles is 125um; Described array point be expert at is 60 ° of angles with main grid line parallel, column and main grid line main body.Described Printing screen directly is fixed on the screen frame.
Embodiment 2:
Be provided with the array point that conductive silver paste can't see through at described web plate at the main grid line.Described array point is identical with the web plate plate body material, is stainless steel material, and the grid line structure of plate body forms by etch process; Described array point be shaped as rectangle, be 75um apart from the length of side of shape; The neutral spacing of any two rectangles is 150um, and described array point be expert at is 45° angle with main grid line parallel, column and main grid line main body.Described Printing screen directly is fixed on the screen frame.
Embodiment 3:
Be provided with the array point that conductive silver paste can't see through at described web plate at the main grid line.Described array point is identical with the web plate plate body material, is the dilval material, and the grid line structure of plate body forms by electroforming process; Described array point be shaped as triangle the time, the leg-of-mutton length of side is 100um; Any two leg-of-mutton center distance are 200um, and described array point be expert at is 60 ° of angles with main grid line parallel, column and main grid line main body.Described Printing screen directly is fixed on the screen frame.
Above embodiment purpose is to illustrate the utility model, and unrestricted protection domain of the present utility model, all application that come by the utility model simple change all drop in the protection domain of the present utility model.
Claims (9)
1. an electrode of solar battery Printing screen comprises plate body, main grid line and thin grid line, it is characterized in that, is provided with the array point that conductive silver paste can't see through at the main grid line.
2. electrode of solar battery Printing screen according to claim 1 is characterized in that, the graphics shape of described array point is circle, rectangle, triangle, square, rhombus or polygon.
3. electrode of solar battery Printing screen according to claim 2 is characterized in that, described array point be shaped as circle, circular diameter is 50 μ m～1mm.
4. electrode of solar battery Printing screen according to claim 3, it is characterized in that, described round diameter is 50 μ m, and the center of circle spacing of adjacent circle is 125 μ m, and described array point be expert at is 60 ° of angles with main grid line parallel, column and main grid line main body.
5. electrode of solar battery Printing screen according to claim 2 is characterized in that, described array point be shaped as rectangle, the length of side of rectangle is 50 μ m～1mm; Described array point be expert at is 45° angle with main grid line parallel, column and main grid line main body.
6. electrode of solar battery Printing screen according to claim 2 is characterized in that, described array point be shaped as triangle, the leg-of-mutton length of side is 50 μ m～1mm; Described array point be expert at is 60 ° of angles with main grid line parallel, column and main grid line main body.
7. each described electrode of solar battery Printing screen is characterized in that according to claim 1-6, and described electrode of solar battery Printing screen is the mesh-plate structure that is processed to form by laser cutting, electroforming or etch process or its group technology.
8. each described electrode of solar battery Printing screen is characterized in that according to claim 1-6, and described electrode of solar battery Printing screen directly is fixed on the screen frame.
9. each described electrode of solar battery Printing screen is characterized in that according to claim 1-6, and described electrode of solar battery Printing screen is fixed on the screen frame after by screen tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205447649U CN202685522U (en) | 2011-12-23 | 2011-12-23 | Solar battery electrode printing screen board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205447649U CN202685522U (en) | 2011-12-23 | 2011-12-23 | Solar battery electrode printing screen board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202685522U true CN202685522U (en) | 2013-01-23 |
Family
ID=47541187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205447649U Expired - Fee Related CN202685522U (en) | 2011-12-23 | 2011-12-23 | Solar battery electrode printing screen board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202685522U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171255A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Solar cell electrode printing halftone |
| CN103332000A (en) * | 2013-06-22 | 2013-10-02 | 浙江鸿禧光伏科技股份有限公司 | Screen printing plate design method special for improving grid line shaping |
-
2011
- 2011-12-23 CN CN2011205447649U patent/CN202685522U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171255A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Solar cell electrode printing halftone |
| CN103332000A (en) * | 2013-06-22 | 2013-10-02 | 浙江鸿禧光伏科技股份有限公司 | Screen printing plate design method special for improving grid line shaping |
| CN103332000B (en) * | 2013-06-22 | 2017-03-22 | 浙江鸿禧能源股份有限公司 | Screen printing plate design method special for improving grid line shaping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190808 Granted publication date: 20130123 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20211223 Granted publication date: 20130123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20191223 |