CN202667932U - Device of laser-made silicon solar battery electrode printing screen - Google Patents
Device of laser-made silicon solar battery electrode printing screen Download PDFInfo
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- CN202667932U CN202667932U CN 201220266369 CN201220266369U CN202667932U CN 202667932 U CN202667932 U CN 202667932U CN 201220266369 CN201220266369 CN 201220266369 CN 201220266369 U CN201220266369 U CN 201220266369U CN 202667932 U CN202667932 U CN 202667932U
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- laser
- solar battery
- battery electrode
- silicon solar
- printing screen
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Abstract
The utility model relates to a device of a laser-made silicon solar battery electrode printing screen. The device comprises a laser device (1). Lasers emitted by the laser device (1) are incident upon a surface of a laser reflecting mirror (4) after passing through a light gate (2) and a beam expander (3). The lasers pass sequentially through a half wave plate (5), a Glan prism (6) and a rotating module (7) after being reflected by the laser reflecting mirror (4), and the lasers are then incident upon a surface of another laser reflecting mirror (4) and enter a galvanometer system (8) after being reflected by the laser reflecting mirror (4). The lasers emitted from the galvanometer system (8) face directly to a piece (16) to be processed on a platform (13) after being focused by a focus lens (9). The device of the laser-made silicon solar battery electrode printing screen has the advantages of being capable of prolonging service life of a solar battery screen and improving printing quality of a solar battery electrode.
Description
Technical field
The present invention relates to a kind of device that utilizes laser to make the electrode of solar battery Printing screen, belong to the photovoltaic technology field.
Background technology
Current, along with the development of silicon solar cell technologies, industry is had higher requirement to the transformation efficiency of silicon solar cell and the cost of manufacture of silicon solar cell etc.
The making of general silicon solar cell mainly comprises following step, 1. removes the damage layer; 2. surperficial matte; 3. launch site diffusion; 4. edge junction etching; 5. PECDV deposits SiN; 6. the positive backplate slurry of serigraphy; 7. burn altogether and form Metal Contact; 8. cell slice test.Wherein the electrode slurry at the positive back side of serigraphy directly affects the transformation efficiency of solar cell, the serigraphy web plate that uses at present often is by polyester capillaries or the stainless steel wire interlacing is tight forms at metal framework, this web plate, the grid line width that prints is with highly inhomogeneous, affect like this free electron traffic efficiency that solar cell produces, thereby reduce the transformation efficiency of solar cell; Shorter service life at this kind web plate in addition, affect processing cost.Therefore, to how improveing printing technology, improving transformation efficiency and reducing cost, proposed Secretary.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide a kind of can Effective Raise solar cell web plate service life and improve the web plate manufacturing installation of electrode of solar battery printing quality.
The object of the present invention is achieved like this: a kind of laser is made the device of silicon solar battery electrode Printing screen, described device includes laser instrument, the laser that described laser instrument sends is behind optical gate and beam expanding lens, incide the surface of laser mirror, through behind half-wave plate, Glan prism and rotating module, inciding successively the surface of another laser mirror after the reflection of laser mirror, and after this laser mirror reflection, entering galvanometer system, the laser line focus mirror that penetrates galvanometer system focuses on rear over against to be processed that is positioned on the platform.
A kind of laser of the present invention is made the device of silicon solar battery electrode Printing screen, and described laser instrument is the high-frequency impulse laser instrument.
A kind of laser of the present invention is made the device of silicon solar battery electrode Printing screen, and described platform top is provided with CCD contraposition observing system.
A kind of laser of the present invention is made the device of silicon solar battery electrode Printing screen, and described platform top one side is provided with scavenger system, and opposite side is provided with dust-precipitating system.
A kind of laser of the present invention is made the device of silicon solar battery electrode Printing screen, and described laser instrument links to each other with control system by communication system with galvanometer system.
A kind of laser of the present invention is made the device of silicon solar battery electrode Printing screen, the laser that laser instrument penetrates be frequency at 10KHz and above pulse laser, and wavelength is 196nm ~ 1064nm, pulsewidth action time is 1fs ~ 1ms.
Compared with prior art, the invention has the beneficial effects as follows:
Adopt stainless steel substrates as the web plate base material, adopt the Laser Processing mesh, with respect to traditional silk screen web plate; At first, can obtain very high flatness after corrosion resistant plate is stretched, by Laser Processing, can be stable draw even size, the small sircle hole of equidistant solid matter row: 1) uniform circular hole is when silver paste printing ink passes through, can be that printing ink spreads out cloth uniformly at battery surface, in higher Duplication, can draw the thin silver-colored line of even width; Simultaneously with under the homalographic, the girth of circular hole tradition web plate is less than square opening, to around to spread out cloth area less, effectively reduced the consumption of silver-colored pulp material.2), live width is thinner in the time of can making printing, reduces slurry and gets area coverage at the silicon solar plate, improves the light-receiving area of battery, increases transformation efficiency; 3) can make grid line wide thin, highly even, under higher printing height, the free electron that solar cell produces can high efficiency pass through, thereby increases the transformation efficiency of solar cell; Secondly, adopt laser technology to process circular hole at stainless steel, making web plate technique is simple, and consumptive material is few, and the web plate wearability of making simultaneously is good, and the life-span is long, has effectively reduced the consumables cost that battery is made.
Simultaneously, adopt the high-frequency impulse ultraviolet laser as light source, by the high accuracy galvanometer system stainless steel substrates is processed, have high accuracy, high efficiency characteristics; Metal framework by particular design stretches to stainless steel substrates, the flatness when guaranteeing its flatness that adds man-hour and printing; Adopt the stainless steel substrates of specially treated to guarantee that it is indeformable when Laser Processing.
Description of drawings
Fig. 1 is the structural representation that a kind of laser of the present invention is made the device of silicon solar battery electrode Printing screen.
Fig. 2 is the device structural scheme of mechanism of used metal framework in use that a kind of laser of the present invention is made the silicon solar battery electrode Printing screen.
Fig. 3 is the I enlarged drawing of Fig. 2.
Wherein:
Screw 21, stretching device 22, stainless steel substrates 23, interior fixed frame 24, housing 25;
Bolt 2201, nut 2202, spring 2203.
The specific embodiment
Referring to Fig. 1 ~ 3, a kind of laser that the present invention relates to is made the device of silicon solar battery electrode Printing screen, it is concrete that described device includes laser instrument 1(, this laser instrument 1 is that repetition rate is at 10KHz and above pulse laser, the wavelength of the laser that it sends is 196nm ~ 1064nm, pulsewidth is 1fs ~ 1ms) action time, the high-frequency impulse laser that described laser instrument 1 sends is behind optical gate 2 and beam expanding lens 3, incide the surface of laser mirror 4, after the reflection of laser mirror 4 successively through half-wave plate 5, Glan prism 6 and rotating module 7(TREPANNING HEAD) after incide the surface of another laser mirror 4, and after these laser mirror 4 reflections, enter galvanometer system 8, the laser line focus mirror 9 that penetrates galvanometer system 8 focuses on rear over against to be processed 16 that is positioned on the platform 13, described platform 13 tops are provided with CCD contraposition observing system 10, and described platform 13 tops one side is provided with scavenger system 11, opposite side is provided with dust-precipitating system 12, and described laser instrument 1 links to each other with control system 14 by communication system 15 with galvanometer system 8;
A kind of using method of device of laser making silicon solar battery electrode Printing screen is following steps among the present invention:
Step 2, stainless steel substrates 23 is fixed on the metal framework, described metal framework is made of housing 25 and four interior fixed frames 24 that are separated from each other, four interior fixed frames 24 are fixed on four limits of stainless steel substrates 23 by screw 21 respectively, link to each other (concrete by stretching device 22 between four interior fixed frames 24 and the housing 25, this stretching device 22 includes bolt 2201, nut 2202 and spring 2203, described interior fixed frame 24 links to each other with housing 25 with nut 2202 by bolt 2201, on described spring 2203 suits and the bolt 2201, and spring 2203 is between interior fixed frame 24 and housing 25); By this stretching device 22 with stainless steel substrates 23 to around Uniform Tension, make it have certain tension force;
The operation principle of above-mentioned stretching device 22 is: when needs stretching stainless steel substrates 23, fastening nut 2202, interior fixed frame 24 expands outwardly under the drive of bolt 2201, thereby play the stretching to stainless steel substrates 23, this moment, spring 2203 was in compressive state, and the purpose that spring 2203 is set is to guarantee the uniformity of tension force in drawing process;
Claims (6)
1. a laser is made the device of silicon solar battery electrode Printing screen, it is characterized in that: described device includes laser instrument (1), the laser that described laser instrument (1) sends is behind optical gate (2) and beam expanding lens (3), incide the surface of laser mirror (4), after the reflection of laser mirror (4) successively through half-wave plate (5), incide the surface of another laser mirror (4) behind Glan prism (6) and the rotating module (7), and after this laser mirror (4) reflection, entering galvanometer system (8), the laser line focus mirror (9) that penetrates galvanometer system (8) focuses on rear over against to be processed (16) being positioned on the platform (13).
2. a kind of laser is made the device of silicon solar battery electrode Printing screen as claimed in claim 1, and it is characterized in that: described laser instrument (1) is the high-frequency impulse laser instrument.
3. a kind of laser is made the device of silicon solar battery electrode Printing screen as claimed in claim 1, and it is characterized in that: described platform (13) top is provided with CCD contraposition observing system (10).
4. a kind of laser is made the device of silicon solar battery electrode Printing screen as claimed in claim 1, and it is characterized in that: described platform (13) top one side is provided with scavenger system (11), and opposite side is provided with dust-precipitating system (12).
5. a kind of laser is made the device of silicon solar battery electrode Printing screen as claimed in claim 1, and it is characterized in that: described laser instrument (1) links to each other with control system (14) by communication system (15) with galvanometer system (8).
6. a kind of laser is made the device of silicon solar battery electrode Printing screen as claimed in claim 2, it is characterized in that: the laser that laser instrument (1) penetrates is that frequency is at 10KHz and above pulse laser, and wavelength is 196nm ~ 1064nm, and pulsewidth action time is 1fs ~ 1ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220266369 CN202667932U (en) | 2012-06-07 | 2012-06-07 | Device of laser-made silicon solar battery electrode printing screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220266369 CN202667932U (en) | 2012-06-07 | 2012-06-07 | Device of laser-made silicon solar battery electrode printing screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202667932U true CN202667932U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220266369 Expired - Lifetime CN202667932U (en) | 2012-06-07 | 2012-06-07 | Device of laser-made silicon solar battery electrode printing screen |
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| Country | Link |
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| CN (1) | CN202667932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717193A (en) * | 2012-06-07 | 2012-10-10 | 江阴德力激光设备有限公司 | Device and method for manufacturing silicon solar cell electrode printing screen through laser |
-
2012
- 2012-06-07 CN CN 201220266369 patent/CN202667932U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717193A (en) * | 2012-06-07 | 2012-10-10 | 江阴德力激光设备有限公司 | Device and method for manufacturing silicon solar cell electrode printing screen through laser |
| CN102717193B (en) * | 2012-06-07 | 2015-04-08 | 江阴德力激光设备有限公司 | Device and method for manufacturing silicon solar cell electrode printing screen through laser |
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130116 |