CN220567885U - Transformation mechanism for improving gas circulation of sintering furnace chamber - Google Patents
Transformation mechanism for improving gas circulation of sintering furnace chamber Download PDFInfo
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- CN220567885U CN220567885U CN202322326381.XU CN202322326381U CN220567885U CN 220567885 U CN220567885 U CN 220567885U CN 202322326381 U CN202322326381 U CN 202322326381U CN 220567885 U CN220567885 U CN 220567885U
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- 238000005245 sintering Methods 0.000 title claims abstract description 113
- 230000009466 transformation Effects 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 title claims abstract description 13
- 238000002407 reforming Methods 0.000 claims description 17
- 229920000742 Cotton Polymers 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009770 conventional sintering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The utility model discloses a transformation mechanism for improving gas circulation of a sintering furnace cavity, wherein a CDA gas chamber is arranged at the bottom of the sintering furnace cavity, a plurality of sintering lamp tubes are equidistantly connected to the position right above the top of the sintering furnace cavity, a plurality of transformation gas holes are uniformly formed in the top surface of the sintering furnace cavity at equal intervals, and gas inlets are uniformly formed in the positions, corresponding to the position right below the sintering furnace cavity, of the inner side of the top of the CDA gas chamber.
Description
Technical Field
The utility model relates to the technical field of modification of sintering furnaces for producing solar cells, in particular to a modification mechanism for improving gas circulation of a sintering furnace cavity.
Background
In the production process of the solar cell, the silicon wafer subjected to screen printing cannot be directly used, the silicon wafer is required to be quickly sintered by a sintering furnace, an organic resin adhesive is burnt off, a nearly pure silver electrode which is tightly adhered to the silicon wafer due to the action of glass is left, the sintering furnace is divided into three stages of presintering, sintering and cooling, the presintering stage aims at decomposing and burning off a polymer adhesive in slurry, the temperature in the stage slowly rises, various physicochemical reactions are completed in a sintering body in the sintering stage, a resistor film structure is formed, the resistor film structure really has resistance characteristics, the temperature in the stage reaches a peak value, and the glass is cooled, hardened and solidified in the cooling stage, so that the resistor film structure is fixedly adhered to a substrate;
with the continuous acceleration of the updating of the battery piece production equipment, the conventional and old sintering furnaces cannot adapt to the production requirements of novel products, and the design defects of the conventional and old sintering furnaces can lead to the problems of narrow sintering temperature window and unstable atmosphere, so that the conversion efficiency and the product yield of the solar battery are reduced, and the current industrialized production requirements cannot be met.
Disclosure of Invention
The utility model provides a transformation mechanism for improving gas circulation of a sintering furnace chamber, which can effectively solve the problems that in the background technology, the production requirements of novel products cannot be met by conventional and old sintering furnaces along with the continuous acceleration of the updating and updating of battery piece production equipment, the sintering temperature window is narrow and the atmosphere is unstable due to the design defects of the conventional and old sintering furnaces, the conversion efficiency and the product yield of solar batteries are reduced, and the production requirements of the current industrialization cannot be met.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the transformation mechanism for improving the gas circulation of the sintering furnace cavity comprises a sintering furnace cavity, wherein a CDA air chamber is arranged at the bottom of the sintering furnace cavity, a plurality of sintering lamp tubes are equidistantly connected right above the top of the sintering furnace cavity, and a plurality of transformation air holes are uniformly formed in the top surface of the sintering furnace cavity at equal intervals;
the inner side of the top of the CDA air chamber is uniformly provided with air inlets corresponding to the position of the right bottom of the sintering furnace chamber, and the inner wall of the sintering furnace chamber is provided with a high-temperature fiber cotton chamber wall.
Preferably, the sintering furnace cavity corresponds to the central position of the CDA air chamber, and the areas of the top and the bottom of the sintering furnace cavity are larger than those of the bottom and the top of the CDA air chamber.
Preferably, the sintering lamp tubes are equidistantly provided with five groups, and the modified air holes are symmetrically arranged at two sides of the bottom of the sintering lamp tube by taking the sintering lamp tube as a symmetry center.
Preferably, the gas blown out of the CDA air chamber passes through the reforming air holes and is discharged from the corresponding reforming air holes in a conical discharge mode.
Preferably, the diameter of the reforming air hole is 0.5cm, and the air inlet hole uniformly conveys the air in the CDA air chamber to the bottom of the sintering furnace cavity.
Preferably, the bottom of the sintering furnace cavity is an opening structure, and the high-temperature fiber cotton cavity wall is arranged on the inner wall of the sintering furnace cavity and can be used for CDA gas to pass through.
Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use:
1. through evenly seting up reforming vent at the top of sintering furnace cavity to this CDA gas that makes CDA air chamber carry changes through from infiltration formula, has changed the mode of gas transmission, accelerates the intracavity gas circulation in the sintering process, widens temperature window, adapts to various novel battery products, has replaced traditional gas transmission structure, solves the problem that sintering temperature window is narrow and atmosphere unstable that conventional and old-type sintering furnace design defect leads to, has improved solar cell conversion efficiency and product yield, has higher practicality.
2. The arrangement positions of the modified air holes are arranged on the two sides of the bottom of the sintering lamp tube, so that the modified air holes on the two sides of the sintering lamp tube can be symmetrically distributed by taking the sintering lamp tube as a symmetry center, and the CDA air chamber can effectively prevent the CDA air from directly blowing the sintering lamp tube to cause continuous increase of the power of the sintering lamp tube when the CDA air chamber is used for transmitting air, thereby influencing the actual furnace temperature and the service life of the sintering lamp tube.
3. The improved structure realizes cost minimization, can improve the yield and efficiency of the battery piece, only needs ultra-low cost, improves the design defects of conventional and old sintering furnaces, and increases the gas circulation of the sintering furnace cavity, thereby widening the temperature window of the sintering furnace to adapt to the yield and efficiency requirements of new products, fully expanding the residual value of the old sintering furnace machine and realizing the maximization of benefits.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the arrangement of the retrofit air vent of the present utility model;
FIG. 3 is a top view of the present utility model;
FIG. 4 is a schematic diagram of the gas delivery through the retrofit gas holes of the present utility model;
FIG. 5 is a schematic diagram of a conventional gas delivery structure;
reference numerals in the drawings: 1. a sintering furnace chamber; 2. a CDA air chamber; 3. sintering the lamp tube; 4. reforming the air hole; 5. an air inlet hole; 6. high temperature fiber cotton chamber wall.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Examples: as shown in fig. 1-3, the utility model provides a technical scheme, a transformation mechanism for improving gas circulation of a sintering furnace chamber, which comprises a sintering furnace chamber 1, wherein a CDA gas chamber 2 is arranged at the bottom of the sintering furnace chamber 1, the sintering furnace chamber 1 corresponds to the central position of the CDA gas chamber 2, the areas of the top and the bottom of the sintering furnace chamber 1 are larger than those of the bottom and the top of the CDA gas chamber 2, so that CDA gas in the CDA gas chamber 2 can be conveniently and better conveyed into the sintering furnace chamber 1, the effective conveying efficiency of CDA gas in the CDA gas chamber 2 is ensured, a plurality of sintering lamp tubes 3 are equidistantly connected above the top of the sintering furnace chamber 1, five groups of sintering lamp tubes 3 are equidistantly arranged, transformation gas holes 4 take the sintering lamp tubes 3 as symmetrical centers and are symmetrically arranged at two sides of the bottom of the sintering lamp tubes 3, so that the CDA gas chamber 2 can change the traditional conveying mode, the direct action of CDA gas on the bottom of the sintering lamp tube 3 is avoided, thereby preventing the continuous increase of the power of the sintering lamp tube 3 caused by the direct blowing of the CDA gas on the sintering lamp tube 3, thereby affecting the actual furnace temperature and the service life of the sintering lamp tube 3, a plurality of reforming air holes 4 are uniformly formed in the top surface of the sintering furnace chamber 1 at equal intervals, the gas blown out from the CDA air chamber 2 is discharged from the corresponding reforming air holes 4 in a conical discharge mode after passing through the reforming air holes 4, the diameter of the reforming air holes 4 is 0.5cm, the gas in the CDA air chamber 2 is uniformly conveyed to the bottom of the sintering furnace chamber 1 by the air inlet holes 5, the CDA gas provided by the CDA air chamber 2 can change the transmission direction thereof conveniently through the arrangement of the reforming air holes 4, thereby changing the CDA gas from the infiltration type to the direct type, thereby accelerating the circulation of the gas in the chamber in the sintering process, the problem of yield efficiency loss caused by slow organic volatilization is solved;
the inside of the top of the CDA air chamber 2 is uniformly provided with an air inlet hole 5 corresponding to the position of the right bottom of the sintering furnace chamber 1, the inner wall of the sintering furnace chamber 1 is provided with a high-temperature fiber cotton chamber wall 6, the bottom of the sintering furnace chamber 1 is of an opening structure, the high-temperature fiber cotton chamber wall 6 is arranged on the inner wall of the sintering furnace chamber 1, CDA gas can pass through the high-temperature fiber cotton chamber wall 6, and CDA gas provided by the CDA air chamber 2 is conveniently transmitted from bottom to top of the sintering furnace chamber 1.
The working principle and the using flow of the utility model are as follows: in the specific application process, the design transformation structure for the gas circulation of the sintering furnace chamber is firstly suitable for the direct communication of CDA in the sintering furnace chamber 1, the upper and lower chambers can be used, the interlayer of the chamber is orderly conducted in the main sintering and presintering areas, and the diameter of the transformation gas hole 4 is controlled to be 0.5cm by uniformly arranging the transformation gas hole 4 at the top of the sintering furnace chamber 1, so that the CDA gas conveyed by the CDA gas chamber 2 is changed from infiltration type to straight type, the gas conveying mode is changed, the gas circulation in the chamber in the sintering process is accelerated, the temperature window is widened, the method is suitable for various novel battery products, and the current gas conveying structure is shown in figure 4;
the improved structure replaces the traditional gas transmission structure, the traditional gas transmission structure is shown in fig. 5, the problems of narrow sintering temperature window and unstable atmosphere caused by the design defects of the conventional sintering furnace and the old sintering furnace are solved, the conversion efficiency and the product yield of the solar cell are improved, the improvement on the production line efficiency and the yield is obvious, and the improved solar cell has higher practicability;
in addition, the modification structure is characterized in that the modification air holes 4 are arranged at the two sides of the bottom of the sintering lamp tube 3, so that the modification air holes 4 at the two sides of the bottom of the sintering lamp tube 3 can be symmetrically distributed by taking the sintering lamp tube 3 as a symmetry center, and when CDA gas is transmitted by the CDA gas chamber 2, the direct blowing of CDA gas to the sintering lamp tube 3 can be effectively prevented, so that the power of the sintering lamp tube 3 is continuously increased, and the actual furnace temperature and the service life of the sintering lamp tube 3 are influenced;
in addition, the modification structure realizes cost minimization, only needs ultra-low cost, improves the design defects of the conventional and old sintering furnaces, fully expands the residual value of the old sintering furnace machine, and realizes benefit maximization.
Finally, it should be noted that: the foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. Transformation mechanism for improving gas circulation of sintering furnace cavity, comprising a sintering furnace cavity (1), and being characterized in that: the bottom of the sintering furnace cavity (1) is provided with a CDA air chamber (2), a plurality of sintering lamp tubes (3) are equidistantly connected right above the top of the sintering furnace cavity (1), and a plurality of transformation air holes (4) are uniformly formed in the top surface of the sintering furnace cavity (1) at equal intervals;
an air inlet hole (5) is uniformly formed in the position, corresponding to the right bottom of the sintering furnace cavity (1), of the inner side of the top of the CDA air chamber (2), and a high-temperature fiber cotton cavity wall (6) is arranged on the inner wall of the sintering furnace cavity (1).
2. The reforming mechanism for improving gas circulation in a sintering furnace chamber according to claim 1, wherein: the sintering furnace cavity (1) corresponds to the central position of the CDA air chamber (2), and the areas of the top and the bottom of the sintering furnace cavity (1) are larger than those of the bottom and the top of the CDA air chamber (2).
3. The reforming mechanism for improving gas circulation in a sintering furnace chamber according to claim 1, wherein: five groups of sintering lamp tubes (3) are equidistantly arranged, and the modified air holes (4) are symmetrically arranged on two sides of the bottom of the sintering lamp tube (3) by taking the sintering lamp tube (3) as a symmetry center.
4. A retrofit mechanism for improving gas circulation in a sintering furnace chamber as set forth in claim 3, wherein: and the gas blown out of the CDA air chamber (2) is discharged from the corresponding reforming air hole (4) in a conical discharge mode after passing through the reforming air hole (4).
5. The reforming mechanism for improving gas circulation in a sintering furnace chamber according to claim 4, wherein: the diameter of the reforming air hole (4) is 0.5cm, and the air inlet hole (5) uniformly conveys the air in the CDA air chamber (2) to the bottom of the sintering furnace cavity (1).
6. The reforming mechanism for improving gas circulation in a sintering furnace chamber according to claim 1, wherein: the bottom of the sintering furnace cavity (1) is an opening structure, the high-temperature fiber cotton cavity wall (6) is arranged on the inner wall of the sintering furnace cavity (1), and CDA gas can pass through the high-temperature fiber cotton cavity wall (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322326381.XU CN220567885U (en) | 2023-08-29 | 2023-08-29 | Transformation mechanism for improving gas circulation of sintering furnace chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322326381.XU CN220567885U (en) | 2023-08-29 | 2023-08-29 | Transformation mechanism for improving gas circulation of sintering furnace chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220567885U true CN220567885U (en) | 2024-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322326381.XU Active CN220567885U (en) | 2023-08-29 | 2023-08-29 | Transformation mechanism for improving gas circulation of sintering furnace chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220567885U (en) |
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2023
- 2023-08-29 CN CN202322326381.XU patent/CN220567885U/en active Active
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