CN206250212U - A kind of Etaching device for polysilicon solar battery slice back surface etching - Google Patents
A kind of Etaching device for polysilicon solar battery slice back surface etching Download PDFInfo
- Publication number
- CN206250212U CN206250212U CN201621303268.3U CN201621303268U CN206250212U CN 206250212 U CN206250212 U CN 206250212U CN 201621303268 U CN201621303268 U CN 201621303268U CN 206250212 U CN206250212 U CN 206250212U
- Authority
- CN
- China
- Prior art keywords
- plate
- solar battery
- back surface
- bubbling
- etching
- 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
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Classifications
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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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- Photovoltaic Devices (AREA)
- Weting (AREA)
Abstract
The utility model is related to solar battery sheet technical field, specially a kind of Etaching device for polysilicon solar battery slice back surface etching, including etching groove, the rectangular shape of cell body of the etching groove, the etching groove is provided with even flow plate by the position of bottom, the even flow plate includes being respectively fixedly connected with four corners of the central plate in the central plate of Horizontal Tile shape and four pieces and inclined corner hang plate obliquely upward, it is furnished with bubbling tracheae in the lower section of the even flow plate, the bubbling tracheae is connected with sparging apparatus, the bubbling through hole being engaged with the bubbling tracheae is offered on the central plate and corner hang plate, Stability Analysis of Structures, high working efficiency, etch effect is good.
Description
Technical field
The utility model is related to solar battery sheet technical field, specially a kind of for the polysilicon solar battery slice back of the body
The Etaching device of surface etch.
Background technology
In photovoltaic industry now, more introducing nitration mixture isotropic etch is more in polysilicon solar battery slice producing line
Crystal silicon solar batteries piece back surface technique, this nitration mixture wet etching polysilicon solar battery slice back surface is in certain journey
Can lift the photoelectric transformation efficiency of cell piece on degree, but existing equipment, it is impossible to reach extraordinary by cell back table
The effect that face " minute surface " is changed, so end product quality is not very high, yields is also relatively low, the process stability of etching reaction
Not high, service life of equipment is not also long.
Utility model content
A purpose of the present utility model be to provide a kind of Stability Analysis of Structures, high working efficiency, etch effect it is good for many
The Etaching device of crystal silicon solar batteries piece back surface etching.
Above-mentioned technical purpose of the present utility model technical scheme is that：One kind is used for polysilicon too
The Etaching device of positive energy cell back surface etch, including etching groove, the rectangular shape of cell body of the etching groove, the etching groove
Position by bottom is provided with even flow plate, the even flow plate include in Horizontal Tile shape central plate and four pieces with the central plate
Four corners are respectively fixedly connected with and inclined corner hang plate obliquely upward, and the lower section of the even flow plate is furnished with bubbling tracheae,
The bubbling tracheae is connected with sparging apparatus, is offered on the central plate and corner hang plate and matched with the bubbling tracheae
The bubbling through hole of conjunction.
In above-mentioned technical proposal, the design to etching groove so that wet etching process is preferably played may finally
Form very high-quality solar battery sheet finished product.
As to it is of the present utility model preferably, the fixed connection place between the central plate and corner hang plate is provided with temperature
Regulation pipe.
As to it is of the present utility model preferably, each corner hang plate of four corners of the central plate and inclining for horizontal plane
Rake angle is equal.
As to of the present utility model, preferably the periphery of the lateral wall of the etching groove is provided with dividing plate, the etching groove and
Damping device is connected between dividing plate, cooling tube is also equipped with the lateral wall of the etching groove.
As to of the present utility model preferred, support column is installed on dividing plate.
As to of the present utility model preferred, it is respectively provided with the central plate and the corner hang plate and is recessed to back
Depressed part, the bubbling through hole is opened on the depressed part.
The beneficial effects of the utility model：The device causes that the etching process of solar battery sheet is more stablized, Ke Yijin
Row is produced in enormous quantities, and etch effect is good, cell back surface " minute surface " change effect is greatly lifted, while also lifting battery
The photoelectric transformation efficiency of piece, makes plated film color more uniform, so as to reduce reflectivity, strengthens light absorbs, lifts short circuit current
Isc, lifting conversion efficiency Eff.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram after the cutting open of the utility model embodiment.
In figure：1st, etching groove, 2, even flow plate, 21, central plate, 22, corner hang plate, 3, bubbling tracheae, 4, bubbling through hole,
5th, temperature adjutage, 6, dividing plate, 61, damping device, 62, cooling tube, 7, support column, 20, depressed part.
Specific embodiment
Specific examples below is only that, to explanation of the present utility model, it is not to limitation of the present utility model, sheet
Art personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read,
But as long as all being protected by Patent Law in right of the present utility model.
Embodiment, as shown in figure 1, a kind of Etaching device for polysilicon solar battery slice back surface etching, including
Etching groove 1, the rectangular shape of cell body of the etching groove 1, the etching groove 1 is provided with even flow plate 2, the uniform flow by the position of bottom
Plate 2 includes being respectively fixedly connected with and to oblique with 21 4 corners of the central plate in the central plate 21 of Horizontal Tile shape and four pieces
The corner hang plate 22 of inclined upward, the lower section of the even flow plate 2 is furnished with bubbling tracheae 3, and the bubbling tracheae 3 is connected with bubbling
The bubbling through hole 4 being engaged with the bubbling tracheae 3 is offered on equipment, the central plate 21 and corner hang plate 22.Groove
Body fills etching solution, and sparging apparatus can use existing nitrogen gas preparing, be blown to bubbling through hole 4 by bubbling tracheae 3, make
Obtain etching solution in groove effectively to be flowed, tiny venthole should be opened up on bubbling tracheae 3.
Fixed connection place between the central plate 21 and corner hang plate 22 is provided with temperature adjutage 5, temperature adjutage 5
Can be using water pipe etc., the temperature to maintain stabilization in adjustment tank.Each corner of 21 4 corners of the central plate inclines
Plate 22 is equal with the angle of inclination of horizontal plane, and optimized angle is at 30 degree or so.
The periphery of the lateral wall of the etching groove 1 is provided with dividing plate 6, and damping dress is connected between the etching groove 1 and dividing plate 6
61 are put, cooling tube 62 is also equipped with the lateral wall of the etching groove 1.The improvement of the program can ensure the stabilization of structure, together
When, cooling tube 62 has preferable adjustment effect to external stabilization, can also coordinate temperature adjutage 5 to work.Branch is installed on dividing plate 6
Dagger 7, damping device can use existing elastic devices.
Further, it is respectively provided with the depressed part being recessed to back on the central plate 21 and the corner hang plate 22
20, the bubbling through hole 4 is opened on the depressed part 20, further lifts above-mentioned beneficial effect.
Furthermore it is also possible to it is furnished with corresponding PH sensors, automatic liquid feeder, automatic control equipment etc., by automatic control
The control of control equipment, is monitored and is controlled in real time, further lifting automation, it is ensured that the validity of etching.
Claims (6)
1. it is a kind of for polysilicon solar battery slice back surface etching Etaching device, it is characterised in that：Including etching groove
（1）, the etching groove（1）The rectangular shape of cell body, the etching groove（1）Position by bottom is provided with even flow plate（2）, it is described even
Stream plate（2）Including the central plate in Horizontal Tile shape（21）And four pieces with the central plate（21）Four corners are fixed respectively to be connected
Connect and inclined corner hang plate obliquely upward（22）, the even flow plate（2）Lower section be furnished with bubbling tracheae（3）, the bubbling
Tracheae（3）It is connected with sparging apparatus, the central plate（21）With corner hang plate（22）On offer and the bubbling tracheae
（3）The bubbling through hole being engaged（4）.
2. a kind of Etaching device for polysilicon solar battery slice back surface etching according to claim 1, it is special
Levy and be：The central plate（21）With corner hang plate（22）Between fixed connection place be provided with temperature adjutage（5）.
3. a kind of Etaching device for polysilicon solar battery slice back surface etching according to claim 1, it is special
Levy and be：The central plate（21）Four each corner hang plates of corner（22）Angle of inclination with horizontal plane is equal.
4. a kind of Etaching device for polysilicon solar battery slice back surface etching according to claim 1, it is special
Levy and be：The etching groove（1）The periphery of lateral wall be provided with dividing plate（6）, the etching groove（1）And dividing plate（6）Between connect
There is damping device（61）, the etching groove（1）Lateral wall on be also equipped with cooling tube（62）.
5. a kind of Etaching device for polysilicon solar battery slice back surface etching according to claim 4, it is special
Levy and be：Dividing plate（6）On support column is installed（7）.
6. according to claim 1 it is a kind of for polysilicon solar battery slice back surface etching Etaching device, its feature
It is：The central plate（21）With the corner hang plate（22）On be respectively provided with to back be recessed depressed part（20）, it is described
Bubbling through hole（4）It is opened in the depressed part（20）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621303268.3U CN206250212U (en) | 2016-11-30 | 2016-11-30 | A kind of Etaching device for polysilicon solar battery slice back surface etching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621303268.3U CN206250212U (en) | 2016-11-30 | 2016-11-30 | A kind of Etaching device for polysilicon solar battery slice back surface etching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206250212U true CN206250212U (en) | 2017-06-13 |
Family
ID=59003978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621303268.3U Expired - Fee Related CN206250212U (en) | 2016-11-30 | 2016-11-30 | A kind of Etaching device for polysilicon solar battery slice back surface etching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206250212U (en) |
-
2016
- 2016-11-30 CN CN201621303268.3U patent/CN206250212U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170613 Termination date: 20201130 |