CN202996877U - Monocrystalline silicon texturing groove - Google Patents
Monocrystalline silicon texturing groove Download PDFInfo
- Publication number
- CN202996877U CN202996877U CN2012206105198U CN201220610519U CN202996877U CN 202996877 U CN202996877 U CN 202996877U CN 2012206105198 U CN2012206105198 U CN 2012206105198U CN 201220610519 U CN201220610519 U CN 201220610519U CN 202996877 U CN202996877 U CN 202996877U
- Authority
- CN
- China
- Prior art keywords
- monocrystalline silicon
- dividing plate
- texturing
- heating tube
- cell body
- Prior art date
- 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
Links
Images
Classifications
-
- 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
Abstract
The utility model relates to a monocrystalline solar cell producing device and especially relates to a monocrystalline silicon texturing groove. The monocrystalline silicon texturing groove includes a groove body containing texturing liquid and heating tubes in the groove body. The groove body is provided with a separating board with holes and a heating tube support is installed on the top part of the separating board. The heating tubes are disposed on the heating tube support. According to the utility model, sodium silicate produced in a texturing process can be gathered in the lower part of the groove body, so that the content of the sodium silicate in the texturing liquid in the upper part is reduced. The texturing quality is improved and the service lifetime of the texturing liquid is prolonged at the same time.
Description
Technical field
The utility model relates to a kind of monocrystalline solar cells sheet process units, relates in particular to the silicon chip of solar cell texturing slot.
Background technology
Solar energy is a kind of radiant energy, compares with other energy, and that solar energy can not produce is poisonous, pernicious gas and waste residue, and it is a kind of green energy resource, thereby can not produce environmental pollution.Simultaneously sunlight is available anywhere, use, safe, with low cost, can regenerate.But must sunlight could be converted to electric energy by means of solar cell.The preparation process of solar cell is generally: making herbs into wool, diffusion preparation PN junction, the processing of trimming knot, dephosphorization silex glass, plating silicon nitride film, silk screen printing and sintering processes.Process for etching is an of paramount importance ring in whole manufacture of solar cells line, its objective is that by the method for chemical corrosion, silicon chip surface being carried out texturing processes, and forms good light trapping structure, reduces the silicon chip surface emissivity.The general process for etching of monocrystalline solar cells is to adopt groove type etching at present, with NaOH solution, monocrystalline silicon piece is carried out anisotropic etch in higher temperature environment, erode away similar pyramidal pyramid structure at monocrystalline silicon sheet surface, realize the Multi reflection of incident light, reduce surface reflectivity.A large amount of making herbs into wool cell bodies that adopt are comprised of cell body and heating tube at present, heating tube is positioned at bottom cell body, the sodium metasilicate that produces in the making herbs into wool process intersperses among in solution along with the thermal convection of solution, but sodium metasilicate viscosity is high, poor thermal conductivity, when reaching, the concentration of the sodium metasilicate in solution can have a strong impact on the making herbs into wool effect after a certain amount of, must change Woolen-making liquid, not only increase operation and also increased cost.
Summary of the invention
The purpose of this utility model is, for the deficiencies in the prior art, provides a kind of monocrystalline silicon texturing slot, reduces the content of cell body top Woolen-making liquid mesosilicic acid sodium, in the useful life of having improved Woolen-making liquid when improving the making herbs into wool quality, has simplified operation and has saved cost.
The technical solution of the utility model is, a kind of monocrystalline silicon texturing slot comprises cell body and the interior heating tube of cell body that Woolen-making liquid is housed, is provided with the dividing plate with hole in described cell body, and at dividing plate top installation heating tube support, described heating tube is placed on the heating tube support.
Described dividing plate be arranged on apart from the distance of cell body bottom surface be in cell body liquid level 1/4 ~ 1/3.
Hole on described dividing plate is infundibulate wide at the top and narrow at the bottom.
Infundibulate hole end face circle diameter on described dividing plate is 3 centimetres, and the infundibulate hole bottom surface circle diameter on dividing plate is 1 centimetre, and the funnel-shaped hole height of holes on dividing plate is 3 centimetres.
Dividing plate is divided into two parts in up and down with texturing slot, and two parts tank liquor is connected by the leak shape hole on dividing plate.Sodium metasilicate is easily reunited, and proportion is greater than Woolen-making liquid, the sodium metasilicate that produces in the making herbs into wool process is because action of gravitation can enter into by the infundibulate hole on dividing plate the bottom of cell body, because heating tube is positioned at dividing plate top, just avoided producing thermal convection between two parts in texturing slot up and down, prevented that sodium metasilicate from getting back to texturing slot top by thermal convection.
Monocrystalline silicon texturing slot described in the utility model can focus on the sodium metasilicate that produces in the making herbs into wool process cell body bottom, has reduced the content of the sodium metasilicate in upper part Woolen-making liquid, has increased the useful life of Woolen-making liquid when improving the making herbs into wool quality.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Embodiment
As shown in Figure 1, a kind of monocrystalline silicon texturing slot comprises cell body 1 and the interior heating tube 2 of cell body 1 that Woolen-making liquid is housed, is provided with the dividing plate 4 with hole 5 in cell body 1, and at dividing plate 4 tops installation heating tube supports 3, described heating tube 2 is placed on heating tube support 3.
It is 1/4 ~ 1/3 of cell body 1 interior liquid level that dividing plate 4 is arranged on apart from the distance of cell body 1 bottom surface, and the hole 5 on dividing plate 4 is infundibulate wide at the top and narrow at the bottom.
Claims (6)
1. monocrystalline silicon texturing slot, comprise cell body (1) and the interior heating tube (2) of cell body (1) that Woolen-making liquid is housed, it is characterized in that, be provided with the dividing plate (4) of band hole (5) in described cell body (1), and at dividing plate (4) top installation heating tube support (3), described heating tube (2) is placed on heating tube support (3).
2. monocrystalline silicon texturing slot according to claim 1, is characterized in that, it is 1/4 ~ 1/3 of the interior liquid level of cell body (1) that described dividing plate (4) is arranged on apart from the distance of cell body (1) bottom surface.
3. monocrystalline silicon texturing slot according to claim 1, is characterized in that, the hole (5) on described dividing plate (4) is infundibulate wide at the top and narrow at the bottom.
4. monocrystalline silicon texturing slot according to claim 3, is characterized in that, infundibulate hole (5) the end face circle diameter on described dividing plate (4) is 3 centimetres.
5. monocrystalline silicon texturing slot according to claim 3, is characterized in that, infundibulate hole (5) the bottom surface circle diameter on described dividing plate (4) is 1 centimetre.
6. monocrystalline silicon texturing slot according to claim 3, is characterized in that, the infundibulate hole (5) on described dividing plate 4 is highly 3 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206105198U CN202996877U (en) | 2012-11-19 | 2012-11-19 | Monocrystalline silicon texturing groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206105198U CN202996877U (en) | 2012-11-19 | 2012-11-19 | Monocrystalline silicon texturing groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202996877U true CN202996877U (en) | 2013-06-12 |
Family
ID=48568011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206105198U Expired - Fee Related CN202996877U (en) | 2012-11-19 | 2012-11-19 | Monocrystalline silicon texturing groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202996877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831960A (en) * | 2018-06-20 | 2018-11-16 | 通威太阳能（安徽）有限公司 | A kind of novel monocrystalline silicon texturing slot and its etching method |
-
2012
- 2012-11-19 CN CN2012206105198U patent/CN202996877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831960A (en) * | 2018-06-20 | 2018-11-16 | 通威太阳能（安徽）有限公司 | A kind of novel monocrystalline silicon texturing slot and its etching method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103451739B (en) | Fine-hair maring using monocrystalline silicon slice additive and using method thereof | |
| CN105206711B (en) | A kind of solaode slice processing method | |
| CN103647000B (en) | A kind of crystal-silicon solar cell Surface Texture metallization processes | |
| CN102842646A (en) | Preparation method of interdigitated back-contact battery based on N-type substrate | |
| CN101635319B (en) | Method for manufacturing back aluminium diffused N type solar cell | |
| CN202996877U (en) | Monocrystalline silicon texturing groove | |
| CN102277574B (en) | Monocrystalline silicon solar cell, etching liquid thereof, texturing method, preparation method and photovoltaic component | |
| CN204874731U (en) | Be used for sedimentary support plate of silicon chip and heating device during preparation solar wafer | |
| CN101593790A (en) | The etching method of silicon cell | |
| CN103078004A (en) | Preparation method for solar cell with selective emitter junction and back face being in point contact combination | |
| CN102403398A (en) | Method for manufacturing solar cell | |
| CN205159295U (en) | Be used for abluent big basket of flowers of silicon chip | |
| CN102912450A (en) | Monocrystalline silicon flocking additive | |
| CN202616272U (en) | Small carrier disposing structure | |
| CN102336525B (en) | Process for ensuring surface etching uniformity of front panel glass of amorphous silicon battery | |
| US8128852B2 (en) | Manufacturing process for silicone glass concentrator lens | |
| CN201686766U (en) | Silicon wafer cleaning and texturing slot | |
| CN104779321A (en) | Method for increasing percent of pass of saw mark cells | |
| CN104393067B (en) | A kind of nanostructured solar cell and preparation method thereof | |
| CN202855779U (en) | High power condensation photovoltaic secondary optical lens fixed support | |
| CN103700730A (en) | Preparation method of solar diffusion selective emitter | |
| CN204391138U (en) | A kind of preparation system of selectivity emission electrode solar cell | |
| CN209929332U (en) | Bubbling device for groove type crystal silicon texturing equipment | |
| CN202977490U (en) | Photovoltaic cell component | |
| CN204966451U (en) | Uniform flow baffle for phosphorous diffusion |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20211119 |