CN214226932U - Solar cell hydrogen passivation device - Google Patents
Solar cell hydrogen passivation device Download PDFInfo
- Publication number
- CN214226932U CN214226932U CN202120592534.3U CN202120592534U CN214226932U CN 214226932 U CN214226932 U CN 214226932U CN 202120592534 U CN202120592534 U CN 202120592534U CN 214226932 U CN214226932 U CN 214226932U
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- China
- Prior art keywords
- hydrogen passivation
- cavity
- solar cell
- cooling
- transmission band
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 82
- 239000001257 hydrogen Substances 0.000 title claims abstract description 82
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000002161 passivation Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 229910021419 crystalline silicon Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Images
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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- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
The utility model discloses a solar wafer hydrogen passivation device, its characterized in that: including at least one hydrogen passivation cavity to and, carry solar wafer's transmission device along the route of setting for, transmission device includes feeding transmission band and ejection of compact transmission band, each hydrogen passivation cavity all wait position, process chamber and cooling chamber including the material loading that sets gradually, each the end that the material loading waited for the position all is connected with the feeding transmission band, each the end in cooling chamber all is connected with ejection of compact transmission band. Each hydrogen passivation cavity in the utility model can independently perform hydrogen passivation on the solar cell, thereby avoiding the fluctuation of the process conditions when the cell enters different cavities from influencing the hydrogen passivation effect; when a certain hydrogen passivation cavity has a problem, the operation of the whole device is not influenced, and the stability of the hydrogen passivation device and the optimal effect of hydrogen passivation are guaranteed.
Description
Technical Field
The utility model relates to a crystalline silicon solar cell production technology and equipment, concretely relates to solar wafer hydrogen passivation device.
Background
The hydrogen passivation is used as an important process in the manufacturing of the crystalline silicon battery, and through passivating the internal defects of the crystalline silicon battery, the recombination center is reduced, the conversion efficiency of the photovoltaic battery is effectively improved, the photoinduced attenuation and the heat-assisted attenuation of the crystalline silicon battery are effectively reduced, and the generated energy in the life cycle of a photovoltaic system is improved. With the great improvement of the productivity of the screen printing process and the application of large-size batteries, higher requirements are put forward on the productivity and the process stability of hydrogen passivation equipment. In order to improve the productivity, more cavities need to be added to the existing hydrogen passivation equipment to meet the requirement of mass production, however, the hydrogen passivation effect is directly influenced by the environmental fluctuation of different cavities due to excessive pipeline-type cavity layout; and the normal operation of the whole equipment can be directly influenced when a single cavity has a problem.
For this reason, there is a need for improvements in solar cell passivation processes and apparatus therefor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned problem, a solar wafer hydrogen passivation device is provided, makes every hydrogen passivation cavity independently carry out the hydrogen passivation to solar wafer, and the fluctuation of process condition influences the hydrogen passivation effect when having avoided the battery to get into different cavitys.
Therefore, the utility model adopts the following technical scheme:
the utility model provides a solar wafer hydrogen passivating device which characterized in that: including at least one hydrogen passivation cavity to and, carry solar wafer's transmission device along the route of setting for, transmission device includes feeding transmission band and ejection of compact transmission band, each hydrogen passivation cavity all wait position, process chamber and cooling chamber including the material loading that sets gradually, each the end that the material loading waited for the position all is connected with the feeding transmission band, each the end in cooling chamber all is connected with ejection of compact transmission band.
Furthermore, an automatic reversing device is arranged between the feeding waiting position and the feeding conveying belt.
Furthermore, an automatic reversing device is arranged between the cooling cavity and the discharging conveying belt.
Further, the hydrogen passivation device comprises at least one redundant hydrogen passivation cavity which is unloaded when other hydrogen passivation cavities are in normal operation.
Furthermore, the process chamber is a thermal treatment chamber and is provided with a heating module, a heat dissipation module and a temperature control module.
Further, the process chamber also comprises an electric injection module, and the electric injection module can perform electric injection on the solar cell.
Furthermore, each hydrogen passivation cavity comprises a rack, and a material loading position waiting position, a process cavity and a cooling cavity which are sequentially arranged on the rack, wherein the process cavity is adjacent to the cooling cavity and can respectively form a closed space, a movable partition plate is arranged between the process cavity and the cooling cavity, and openable door bodies are respectively arranged on two sides of the movable partition plate and at the tail ends of the process cavity and the cooling cavity.
Furthermore, a blanking waiting position is arranged at the tail end of the cooling cavity, and an automatic reversing device is arranged at the tail end of the blanking waiting position.
Further, a plurality of rollers are arranged at the bottom of the frame.
The utility model discloses a solar wafer hydrogen passivation device, every hydrogen passivation cavity independently carries out hydrogen passivation to the solar wafer, avoids the fluctuation of process conditions when the battery enters different cavities to influence the hydrogen passivation effect; furthermore, through the redundancy design, when a certain hydrogen passivation cavity has a problem, the operation of the whole device is not influenced, and the stability of the hydrogen passivation device and the optimal effect of hydrogen passivation are guaranteed.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a solar cell hydrogen passivation device according to the present invention;
fig. 2 and 3 are schematic structural views of the hydrogen passivation chamber according to the present invention;
in the figure, a hydrogen passivation chamber 100, a feeding waiting position 101, a process chamber 102, a cooling chamber 103, a frame 104, a discharging waiting position 105, and a roller 106;
a conveying device 200, a feeding conveying belt 201 and a discharging conveying belt 202;
a first transmission path 10, a second transmission path 20, and a third transmission path 30.
Detailed Description
In order to make the technical field personnel understand the utility model discloses the scheme, will combine the drawing in the embodiment of the utility model below, to the technical scheme in the embodiment of the utility model carries out clear, complete description.
The utility model provides a "solar wafer" indicates the solar wafer in the processing, has the same meaning with the silicon chip. The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1, the present embodiment provides a solar cell hydrogen passivation apparatus, which includes at least one hydrogen passivation chamber 100, and a conveying apparatus 200 for conveying a solar cell along a set path, specifically, the conveying apparatus includes an infeed conveyor belt 201 and an outfeed conveyor belt 202. The feeding conveyor belt 201 conveys the solar cell sheet along the first conveying path 10, and the discharging conveyor belt 202 conveys the solar cell sheet along the second conveying path 20.
Each hydrogen passivation chamber 100 comprises a feeding waiting position 101, a process chamber 102 and a cooling chamber 103 which are arranged in sequence. Each hydrogen passivation chamber 100 carries a solar cell sheet along a third transport path 30, the respective transport paths being shown in the direction of the arrows.
The end of each loading waiting position 101 is connected with an input conveyor belt 201, and the end of each cooling cavity 103 is connected with an output conveyor belt 202. The term "coupled" as used herein may be either a direct connection or a connection through one or more intervening elements.
As a preferred and specific embodiment, an automatic reversing device (not shown in the figures) is arranged between the feeding waiting station 101 and the feeding conveyor 201, and an automatic reversing device is also arranged between the cooling chamber 103 and the discharging conveyor 202. Namely: the feeding waiting position 101 and the feeding conveyor belt 201, and the cooling chamber 103 and the discharging conveyor belt 202 are connected by an automatic reversing device. When the hydrogen passivation cavity 100 is loaded, the automatic reversing device switches the solar cell from the first transmission path 10 to the third transmission path 30; when the hydrogen passivation chamber 100 is blanked, the solar cell pieces are switched from the third transfer path 30 to the second transfer path 20.
In order to obtain better implementation effect, the utility model discloses still include at least one redundant hydrogen passivation cavity, this redundant hydrogen passivation cavity is unloaded when other hydrogen passivation cavities normal operating. The redundant hydrogen passivation cavity is completely identical in structure with the rest hydrogen passivation cavities, is unloaded when the other hydrogen passivation cavities are in normal operation, and is in the same process condition with the other hydrogen passivation cavities. When a certain hydrogen passivation cavity breaks down in the operation process, the solar cell pieces in the broken-down hydrogen passivation cavity are transferred to the redundant hydrogen passivation cavity, or the redundant hydrogen passivation cavity is fed again, and unprocessed solar cell pieces are loaded, so that the stability and the capacity of the whole equipment are guaranteed.
In one embodiment, the process chamber 102 is a thermal processing chamber having a heating module, a heat sink module, and a temperature control module.
Alternatively or preferably, the process chamber 102 further comprises an electrical injection module, which can electrically inject the solar cell.
As shown in fig. 2 and 3, each hydrogen passivation chamber 100 includes a rack 104, and a loading level waiting level 101, a process chamber 102, and a cooling chamber 103 sequentially disposed on the rack. The process chamber 102 and the cooling chamber 104 are adjacent to each other and can form a closed space, a movable partition is provided between the process chamber and the cooling chamber, and openable and closable door bodies (the door bodies are removed in the figure) are respectively provided on two sides of the movable partition and at the ends of the process chamber and the cooling chamber.
A blanking waiting position 105 can be arranged at the end of the cooling cavity 103, and an automatic reversing device is arranged at the end of the blanking waiting position 105.
The bottom of the frame 104 is provided with a number of rollers 106. The solar cell sheets are transported through a magazine which rolls along the rollers when being transported.
The utility model discloses in, the hydrogen passivation process of solar wafer can be accomplished alone to each hydrogen passivation cavity 100, promptly: the whole hydrogen passivation process of the solar cell can be completed in one hydrogen passivation cavity 100 without converting different cavities. The different hydrogen passivation chambers 100 do not interfere with each other.
The utility model discloses a working process and theory of operation as follows:
the working process is as follows:
the method comprises the following steps: the solar cell pieces are loaded in the material box, the solar cell pieces are loaded to the feeding conveying belt 201 from the starting end of the feeding conveying belt 201, an automatic reversing device is arranged on the feeding conveying belt 201 corresponding to the feeding waiting position of each hydrogen passivation cavity, and the automatic reversing device is used for switching the material box loaded with the solar cell pieces from the first conveying path 10 to the third conveying path 30;
step two: the material box enters each hydrogen passivation cavity, and in the process cavity, the solar cell is cooled in the cooling cavity after being subjected to process treatment according to set process conditions;
step three: after the processing is finished, the automatic reversing device positioned at the tail end of the cooling cavity acts to convert the solar cell piece from the third transmission path 30 to the second transmission path 20, and the blanking of the solar cell piece is finished.
The utility model provides a material loading and unloading of each hydrogen passivation cavity adopt automatic control mode. If no material box is arranged at the feeding waiting position of one hydrogen passivation cavity, a material incoming signal is sent, and the material box transmitted by the feeding transmission belt 201 is converted to a feeding position by an automatic reversing device at the feeding waiting position of the hydrogen passivation cavity for feeding; when the process time set by a certain cooling cavity is finished, a discharging signal is sent out and is converted to the discharging conveying belt 201 by the automatic reversing device at the position to discharge.
It can be seen that in the utility model discloses in, the hydrogen passivation process of solar wafer can be accomplished alone to each hydrogen passivation cavity 100, need not change different cavities, and can not interfere with each other between the hydrogen passivation cavity 100 of difference.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.
Claims (8)
1. The utility model provides a solar wafer hydrogen passivating device which characterized in that: including at least one hydrogen passivation cavity to and, carry solar wafer's transmission device along the route of setting for, transmission device includes feeding transmission band and ejection of compact transmission band, each hydrogen passivation cavity all wait position, process chamber and cooling chamber including the material loading that sets gradually, each the end that the material loading waited for the position all is connected with the feeding transmission band, each the end in cooling chamber all is connected with ejection of compact transmission band.
2. The solar cell hydrogen passivation device according to claim 1, characterized in that: and an automatic reversing device is arranged between the feeding waiting position and the feeding conveying belt.
3. The solar cell hydrogen passivation device according to claim 1, characterized in that: and an automatic reversing device is arranged between the cooling cavity and the discharging conveying belt.
4. The solar cell hydrogen passivation device according to claim 1, characterized in that: the hydrogen passivation device also comprises at least one redundant hydrogen passivation cavity which is unloaded when other hydrogen passivation cavities are in normal operation.
5. The solar cell hydrogen passivation device according to claim 1, characterized in that: the process cavity is a heat treatment cavity and is provided with a heating module, a heat dissipation module and a temperature control module.
6. The solar cell hydrogen passivation device according to claim 5, characterized in that: the process chamber also comprises an electric injection module which can carry out electric injection on the solar cell.
7. The solar cell hydrogen passivation device according to claim 1, characterized in that: each hydrogen passivation cavity comprises a rack, and a material loading position waiting position, a process cavity and a cooling cavity which are sequentially arranged on the rack, wherein the process cavity is adjacent to the cooling cavity and can form a closed space respectively, a movable partition plate is arranged between the process cavity and the cooling cavity, and door bodies which can be opened and closed are respectively arranged on two sides of the movable partition plate and at the tail ends of the process cavity and the cooling cavity.
8. The solar cell hydrogen passivation device according to claim 7, characterized in that: and the tail end of the cooling cavity is also provided with a blanking waiting position, and the tail end of the blanking waiting position is provided with an automatic reversing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120592534.3U CN214226932U (en) | 2021-03-23 | 2021-03-23 | Solar cell hydrogen passivation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120592534.3U CN214226932U (en) | 2021-03-23 | 2021-03-23 | Solar cell hydrogen passivation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214226932U true CN214226932U (en) | 2021-09-17 |
Family
ID=77693833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120592534.3U Active CN214226932U (en) | 2021-03-23 | 2021-03-23 | Solar cell hydrogen passivation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214226932U (en) |
-
2021
- 2021-03-23 CN CN202120592534.3U patent/CN214226932U/en active Active
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