CN203690332U - Roller for polycrystalline solar cell texturing device - Google Patents
Roller for polycrystalline solar cell texturing device Download PDFInfo
- Publication number
- CN203690332U CN203690332U CN201320875651.6U CN201320875651U CN203690332U CN 203690332 U CN203690332 U CN 203690332U CN 201320875651 U CN201320875651 U CN 201320875651U CN 203690332 U CN203690332 U CN 203690332U
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- China
- Prior art keywords
- roller
- roller bearing
- frosted texture
- cylindrical long
- long tube
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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 provides a roller for a polycrystalline solar cell texturing device. The roller forms a cylindrical long tube structure; the periphery of the cylindrical long tube structure is evenly provided with a frosted texture; and each frosted texture wraps the long tube to form a circle. The length of the cylindrical long tube structure is 910.56 +/- 0.05mm; and the diameter of the cylindrical long tube structure is 26.36 +/- 0.36mm. The distance between two adjacent frosted textures is 0.5 to 1mm. The width of each frosted texture is 0.5 to 1mm; and the depth of each frosted texture is 3 to 5mm. The roller provided by the utility model overcomes the defects in the prior art, solves the problem that the roller trace on the surface is bad in appearance after the solar cell piece carries out the texturing, improves the product quality, and reduces the scrappage rate and fragmentation rate of the cell piece and also the complaint rate by the customer due to the bad appearance.
Description
Technical field
The utility model relates to a kind of polycrystalline etching solar cells equipment roller bearing, and especially a kind of roller bearing that solves polycrystalline solar cell piece making herbs into wool rear surface rolling wheel stamp, belongs to manufacture of solar cells manufacturing equipment technical field.
Background technology
Solar energy is as a kind of green energy resource, inexhaustible, pollution-free with it, not be more and more subject to people's attention by the advantages such as region resource limitation.Along with the development of solar cell, industry also in continuous raising, is not only embodied in battery electrical property aspect to the requirement of battery quality, battery outward appearance is also had to higher requirement simultaneously.Wherein the aberration of finished product sheet plays very large impact in battery appearance requirement, and the quality of the making herbs into wool of polycrystalline cell piece has a great impact finished product aberration.
Polycrystalline making herbs into wool is the first operation in solar cell production process, its objective is and utilizes the mix acid liquor of nitric acid and hydrofluoric acid, to the isotropic etch of polysilicon chip, silicon chip surface is carried out to texturing, to reduce reflection of light.But the silicon chip surface after the domestic polycrystalline chain-type texture-etching equipment making herbs into wool of employing has obvious rolling wheel stamp in current industry, the making herbs into wool surface corrosion hole size distribution at rolling wheel stamp place has very big-difference in normal surface, thereby causes producing aberration after plated film, affects outward appearance.
Utility model content
The technical problems to be solved in the utility model is to provide the novel roller bearing that a kind of etching device that solves polycrystalline solar cell piece making herbs into wool rear surface rolling wheel stamp is used.
In order to solve the problems of the technologies described above, the technical solution of the utility model is to provide a kind of polycrystalline etching solar cells equipment roller bearing, it is characterized in that: be cylindrical long barrel structure, cylindrical long barrel structure periphery is evenly provided with frosted texture, each frosted texture forms a circle around long cylinder.
Preferably, described cylindrical long barrel structure length is 910.56+0.05mm, and cylindrical long barrel structure diameter is 26.36+0.36mm.
Preferably, the spacing of adjacent described frosted texture is 0.5～1mm.
Preferably, the width of each described frosted texture is 0.5～1mm, and the degree of depth of each described frosted texture is 3～5mm.
The roller bearing that the utility model provides can solve solar battery slice etching rear surface rolling wheel stamp, this roller bearing is arranged on to wool-weaving machine texturing slot bottom, when making herbs into wool, in texturing slot, configure the corrosive liquid that chemical reaction needs, opening device, place the polysilicon chip that needs production from feeding port, the roller bearing rotating drives silicon chip to pass by from corrosive liquid, due to the flat core structure of this roller bearing rice, and there is frosted screw thread on flat cylinder, because this screw thread has tiny texture structure, thereby solution can take on silicon chip by screw thread on flat cylinder in the time carrying out texturing, make solution also can carry out fully contacting and reacting with silicon chip on roller bearing, thereby in keeping corrosion weight, guarantee that solution is respectively to the uniformity of corroding, thereby eliminate due to the uneven rolling wheel stamp causing of corrosion.
The device that the utility model provides has overcome the deficiencies in the prior art, not only solve the bad order problem that solar battery slice etching rear surface rolling wheel stamp brings, and promoted the quality of product, reduce bad order the rate of complaints of scrappage, fragment rate and the client of cell piece.
Accompanying drawing explanation
The polycrystalline etching solar cells equipment roller bearing schematic diagram that Fig. 1 provides for the utility model.
Embodiment
For the utility model is become apparent, hereby with a preferred embodiment, and coordinate accompanying drawing to be described in detail below.
The polycrystalline etching solar cells equipment roller bearing schematic diagram that Fig. 1 provides for the utility model, described polycrystalline etching solar cells equipment is a cylindrical long barrel structure by roller bearing entirety, long cylinder materials'use PVDF (Kynoar) makes, surface adopts the frosted grain design of dense arrangement, and each frosted texture forms a circle around long cylinder.Wherein long cylinder total length L is 910.56 ± 0.05mm, and long cylinder diameter D is 26.36+0.36mm, and every two frosted texture spacing a are 0.5～1mm.Each frosted texture width design is 0.5～1mm, and the degree of depth is 3～5mm.
When use, domestic Al Kut is strangled in etching device texturing slot and the original lower roller bearing complete removal in texturing slot exit, the polycrystalline etching solar cells equipment roller bearing that 28 basic utility models are provided is arranged on wool-weaving machine texturing slot bottom, and other 7 are arranged on texturing slot exit.Add nitric acid and hydrofluoric acid, configure the corrosive liquid that chemical reaction needs, opening device.
Be ready to the polysilicon chip of producing, put into from equipment feeding port, rotating roller bearing drives silicon chip to pass by from corrosive liquid, because this roller bearing adopts flat core structure, and have frosted screw thread on flat cylinder, in the time carrying out texturing, solution can take on silicon chip by screw thread on flat cylinder, make solution also can carry out fully contacting and reacting with silicon chip on roller bearing, thereby in keeping corrosion weight, guarantee that solution is respectively to the uniformity of corroding, thereby eliminated due to the uneven rolling wheel stamp causing of corrosion.
Finally the silicon chip after making herbs into wool is spread, the operation such as etching, plated film and making electrode, the cell piece appearance uniformity after plated film, the aberration that has not had rolling wheel stamp to produce, thereby reduced finished product bad order rate.
Claims (4)
1. a polycrystalline etching solar cells equipment roller bearing, is characterized in that: be cylindrical long barrel structure, cylindrical long barrel structure periphery is evenly provided with frosted texture, and each frosted texture forms a circle around long cylinder.
2. a kind of polycrystalline etching solar cells equipment roller bearing as claimed in claim 1, is characterized in that: described cylindrical long barrel structure length (L) is 910.56+0.05mm, and cylindrical long barrel structure diameter (D) is 26.36 ± 0.36mm.
3. a kind of polycrystalline etching solar cells equipment roller bearing as claimed in claim 1, is characterized in that: the spacing (a) of adjacent described frosted texture is 0.5～1mm.
4. a kind of polycrystalline etching solar cells equipment roller bearing as claimed in claim 1, is characterized in that: the width of each described frosted texture is 0.5-1mm, and the degree of depth of each described frosted texture is 3～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875651.6U CN203690332U (en) | 2013-12-27 | 2013-12-27 | Roller for polycrystalline solar cell texturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875651.6U CN203690332U (en) | 2013-12-27 | 2013-12-27 | Roller for polycrystalline solar cell texturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690332U true CN203690332U (en) | 2014-07-02 |
Family
ID=51012201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320875651.6U Expired - Fee Related CN203690332U (en) | 2013-12-27 | 2013-12-27 | Roller for polycrystalline solar cell texturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979862A (en) * | 2019-04-22 | 2019-07-05 | 通威太阳能（成都）有限公司 | A kind of etching groove for promoting two-sided PERC battery appearance yield and reducing acid consumption |
-
2013
- 2013-12-27 CN CN201320875651.6U patent/CN203690332U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979862A (en) * | 2019-04-22 | 2019-07-05 | 通威太阳能（成都）有限公司 | A kind of etching groove for promoting two-sided PERC battery appearance yield and reducing acid consumption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20191227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |