HIT or HJT process curing and hydrogen passivation integrated machine for solar cell
阅读说明:本技术 一种太阳能电池hit或hjt工艺固化、氢钝化一体机 (HIT or HJT process curing and hydrogen passivation integrated machine for solar cell ) 是由 王会 刘品德 朱速锋 戴向荣 于 2019-11-04 设计创作,主要内容包括:本发明公开了一种太阳能电池HIT或HJT工艺固化、氢钝化一体机,包括机架、用于对太阳能电池进行固化处理的固化炉、用于对太阳能电池进行氢钝化处理的氢钝化炉和用于传输太阳能电池的传输装置,固化炉和氢钝化炉顺序设置在机架上,固化炉出片的一端部与氢钝化炉进片的一端部相邻,传输装置连续设置在机架上,且传输装置分别穿过固化炉和氢钝化炉。该太阳能电池HIT或HJT工艺固化、氢钝化一体机结构简单,太阳能电池在固化炉中完成固化处理后可直接通过传输装置传输到氢钝化炉中进行氢钝化处理,该工艺过程连续,省去了搬运太阳能电池的工艺步骤,在提高生产效率的同时可避免搬运太阳能电池所造成的损伤。(The invention discloses a curing and hydrogen passivating all-in-one machine for a solar cell by an HIT (hydrogen induced plasticity) or HJT (high temperature resistance) process, which comprises a rack, a curing furnace for curing the solar cell, a hydrogen passivating furnace for hydrogen passivating the solar cell and a transmission device for transmitting the solar cell, wherein the curing furnace and the hydrogen passivating furnace are sequentially arranged on the rack, one end part of a discharging piece of the curing furnace is adjacent to one end part of a feeding piece of the hydrogen passivating furnace, the transmission device is continuously arranged on the rack, and the transmission device respectively penetrates through the curing furnace and the hydrogen passivating furnace. The all-in-one machine for curing the solar cell by the HIT or HJT process and passivating the solar cell by the hydrogen is simple in structure, the solar cell can be directly transmitted into the hydrogen passivation furnace for hydrogen passivation by the transmission device after being cured in the curing furnace, the process is continuous, the process step of carrying the solar cell is omitted, and the damage caused by carrying the solar cell can be avoided while the production efficiency is improved.)
1. A solar cell HIT or HJT process solidification, hydrogen passivation all-in-one machine which characterized in that: including the frame, be used for carrying out the curing oven that solidifies the processing to solar cell, be used for carrying out the hydrogen passivation stove that hydrogen passivation handled and the transmission device who is used for transmitting solar cell to solar cell, the curing oven with hydrogen passivation stove sets up in proper order in the frame, the curing oven go out a tip with hydrogen passivation stove enters a tip of piece adjacent, transmission device sets up in succession in the frame, just transmission device passes respectively the curing oven with hydrogen passivation stove.
2. The all-in-one machine for HIT or HJT process curing and hydrogen passivation of the solar cell as claimed in claim 1, wherein: the hydrogen passivation furnace comprises an optical module, an electrical module and a temperature control system used for controlling the temperature inside the hydrogen passivation furnace, wherein the optical module, the electrical module and the temperature control system are all arranged on the rack, the optical module and the electrical module are connected through a line, and the temperature control system comprises a control box body arranged on the rack and positioned at the bottom of the optical module, a heating unit arranged in the control box body and a cooling unit arranged on the control box body.
3. The all-in-one machine for HIT or HJT process curing and hydrogen passivation of the solar cell as claimed in claim 2, wherein: the optical module comprises a light source box body arranged on the rack, a plurality of independently controllable light source devices arranged on the light source box body and a plurality of condensing lens devices covering the light emitting surface of the light source devices, wherein the light source devices provide at least 1 unit illumination intensity.
4. The all-in-one machine for HIT or HJT process curing and hydrogen passivation of the solar cell as claimed in claim 3, wherein: the optical module further comprises a first cooling device and/or a second cooling device, wherein the first cooling device is used for cooling the light-emitting back side of the light source device, and/or the second cooling device is used for cooling the light-emitting front side of the light source device, the first cooling device is a water cooling device, and the second cooling device is an air cooling device.
5. The all-in-one machine for HIT or HJT process curing and hydrogen passivation of the solar cell as claimed in claim 1, wherein: the curing oven is in including heating module, the setting that is used for carrying out the heating solidification to solar cell the exhaust device and the combustion tower at heating module's top, the heating module sets up in the frame, the top of heating module is provided with the mouth of wasting discharge, the combustion tower with the exhaust device respectively with the difference the mouth of wasting discharge is connected, the heating module has the heating cavity, the heating cavity includes a plurality of unit heating chambers that set up side by side, each the temperature of unit heating chamber can independent control, transmission device runs through each the unit heating cavity.
6. The all-in-one machine for HIT or HJT process curing and hydrogen passivation of the solar cell as claimed in claim 5, wherein: the heating module comprises an upper heating module and a lower heating module, and the upper heating module and the lower heating module can be arranged on the rack in a vertically lifting mode.
7. The all-in-one machine for HIT or HJT process curing and hydrogen passivation of the solar cell as claimed in claim 1, wherein: the transmission device comprises a plurality of transmission rollers and a driving device, wherein the transmission rollers can be rotatably arranged on the rack, the driving device is arranged on the rack and used for driving the transmission rollers to rotate, the transmission rollers are arranged in parallel, the driving device comprises a transmission shaft, a driving wheel, a driven wheel and a motor, the transmission shaft can be rotatably arranged on the rack, the driving wheel is fixedly arranged on the transmission shaft, the driven wheel is fixedly arranged at one end of each transmission roller, the motor is used for driving the transmission shaft to rotate, the driving device further comprises a transmission mechanism, the transmission mechanism is arranged between the driven wheel and the driving wheel and used for driving the driven wheel to rotate when the driving wheel rotates, and the transmission mechanism is a magnetic transmission mechanism, a belt transmission mechanism or a gear transmission mechanism.
8. The all-in-one machine for curing and hydrogen passivating solar cell by using HIT or HJT process as claimed in claim 1 or 7, wherein: the transmission device comprises a plurality of transmission rollers which can be rotatably arranged on the rack, each transmission roller is provided with a positioning structure used for positioning the solar cell at the same axial position, the positioning structure comprises a concave part and positioning parts, the concave part is arranged on each transmission roller, the positioning parts are arranged at two ends of the concave part, the solar cell is positioned in the concave part, and the positioning parts are used for limiting the relative two side parts of the solar cell.
9. The all-in-one machine for HIT or HJT process curing and hydrogen passivation of the solar cell as claimed in claim 1, wherein: the all-in-one machine is characterized by further comprising a third cooling device arranged on the rack, the third cooling device is arranged on the rack and close to one end portion of the hydrogen passivation furnace in the sheet discharging direction, the third cooling device comprises a cooling box body arranged on the rack and a cooling fan arranged on the cooling box body, the cooling box body is provided with a cooling cavity, the transmission device penetrates through the cooling cavity, an air inlet and an air outlet are arranged on the cooling box body respectively, the air inlet and the air outlet are located above and below the transmission device respectively, the cooling fan is arranged at the position of the air inlet, a converging area of a conical structure is arranged on the cooling box body, and the air outlet is arranged at the position of a small end of the converging area.
10. The all-in-one machine for HIT or HJT process curing and hydrogen passivation of the solar cell as claimed in claim 1, wherein: the solar cell includes a crystalline silicon cell, an amorphous silicon cell, or a heterojunction cell.
Technical Field
The invention relates to the technical field of solar cell production, in particular to a solar cell HIT or HJT process curing and hydrogen passivation integrated machine.
Background
After the solar cell is manufactured, drying and curing treatment is carried out through a curing oven, and then hydrogen passivation treatment is carried out through a hydrogen passivation oven. In the prior art, a curing furnace for curing a solar cell and a hydrogen passivation furnace for hydrogen passivation are separately provided, so that after the solar cell is cured in the curing furnace, the solar cell needs to be transported to the hydrogen passivation furnace by a transport mechanism for hydrogen passivation. The process has complex steps, can not realize continuous production and has low production efficiency; moreover, the solar cell is easily damaged during the transportation process, thereby affecting the quality of the solar cell.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an improved all-in-one machine for curing and hydrogen passivating a solar cell by using an HIT or HJT process.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a solar cell HIT or HJT technology solidification, hydrogen passivation all-in-one, includes the frame, is used for carrying out solidification treatment to solar cell curing oven, is used for carrying out hydrogen passivation treatment's hydrogen passivation stove and is used for transmitting solar cell's transmission device to solar cell, curing oven with hydrogen passivation oven sets up in proper order in the frame, one end portion that curing oven goes out the piece with hydrogen passivation oven advances a tip adjacent, transmission device sets up in succession in the frame, just transmission device passes respectively curing oven with hydrogen passivation stove.
Preferably, the hydrogen passivation furnace comprises an optical module, an electrical module and a temperature control system for controlling the temperature inside the hydrogen passivation furnace, the optical module, the electrical module and the temperature control system are all arranged on the rack, the optical module is connected with the electrical module through a line, and the temperature control system comprises a control box body arranged on the rack and positioned at the bottom of the optical module, a heating unit arranged in the control box body and a cooling unit arranged on the control box body.
Further, the optical module comprises a light source box body arranged on the rack, a plurality of independently controllable light source devices arranged on the light source box body and a plurality of condensing lens devices covering the light emitting surface of the light source devices, wherein the light source devices provide at least 1 unit illumination intensity.
Furthermore, the optical module further comprises a first cooling device for cooling the light-emitting back side of the light source device and/or a second cooling device for cooling the light-emitting front side of the light source device, wherein the first cooling device is a water cooling device, and the second cooling device is an air cooling device.
Preferably, the curing oven is in including heating module, the setting that is used for carrying out the heating solidification to solar cell the exhaust device and the combustion tower at the top of heating module, the heating module sets up in the frame, the top of heating module is provided with the waste discharge port, the combustion tower with the exhaust device respectively with the difference the waste discharge port is connected, the heating module has the heating chamber, the heating chamber includes a plurality of unit heating chambers that set up side by side, each the temperature of unit heating chamber can independent control, transmission device runs through each unit heating chamber.
Further, the heating module includes heating module and lower heating module, go up the heating module with the lower heating module homoenergetic sets up with going up and down in the frame.
Preferably, the transmission device comprises a plurality of transmission rollers which can be rotatably arranged on the rack, and a driving device which is arranged on the rack and used for driving the transmission rollers to rotate, wherein the transmission rollers are arranged in parallel, the driving device comprises a transmission shaft which can be rotatably arranged on the rack, a driving wheel which is fixedly arranged on the transmission shaft, a driven wheel which is fixedly arranged at one end of each transmission roller, and a motor which is used for driving the transmission shaft to rotate, the driving device further comprises a transmission mechanism which is arranged between the driven wheel and the driving wheel and used for driving the driven wheel to rotate when the driving wheel rotates, and the transmission mechanism is a magnetic transmission mechanism, a belt transmission mechanism or a gear transmission mechanism.
Preferably, the transmission device includes and can set up with rotating a plurality of transmission running rollers in the frame, every same axial position department of transmission running roller all is provided with the location structure that is used for fixing a position solar cell, location structure is including setting up respectively every recess on the transmission running roller and being located the location portion at recess both ends, solar cell is located in the recess, and through location portion carries on spacingly to its relative both sides portion.
Preferably, the all-in-one machine further comprises a third cooling device arranged on the rack, the third cooling device is arranged on the rack and close to one end part of the hydrogen passivation furnace in the sheet discharging direction, the third cooling device comprises a cooling box body arranged on the rack and a cooling fan arranged on the cooling box body, the cooling box body is provided with a cooling chamber, the conveying device penetrates through the cooling chamber, the cooling box body is respectively provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively arranged above and below the conveying device, the cooling fan is arranged at the position of the air inlet, a converging area with a conical structure is arranged on the cooling box body, and the air outlet is arranged at the position of a small end of the converging area.
Preferably, the solar cell includes a crystalline silicon cell, an amorphous silicon cell, or a heterojunction cell.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the HIT or HJT process curing and hydrogen passivation integrated machine for the solar cell has a simple structure, the solar cell can be directly transmitted into the hydrogen passivation furnace for hydrogen passivation through the transmission device after being cured in the curing furnace, the process is continuous, the process step of carrying the solar cell is omitted, and the damage caused by carrying the solar cell can be avoided while the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a curing oven of an all-in-one machine for HIT or HJT process curing and hydrogen passivation of a solar cell according to the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view showing the construction of a hydrogen passivation furnace and a third cooling device of the integrated HIT or HJT process solidification and hydrogen passivation unit of the solar cell of the present invention (with a portion of the frame removed);
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is a schematic structural diagram of an optical module of the integrated HIT or HJT process curing and hydrogen passivation apparatus of a solar cell of the present invention;
fig. 6 is a schematic structural diagram (with a side wall removed) of a temperature control system of the all-in-one machine for curing and hydrogen passivation of the solar cell by the HIT or HJT process of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
The invention discloses a curing and hydrogen passivating all-in-one machine for a solar cell by an HIT (hydrogen induced plasticity) or HJT (hydrogen transport technology) process, which comprises a frame 1, a curing furnace 2 for curing the solar cell, a hydrogen passivating
As shown in fig. 1, the curing oven 2 includes a heating module 21, a
The heating module 21 includes an
A plurality of heating elements are arranged in each unit heating cavity and can be independently controlled, so that the independent control of the heating temperature in each unit heating cavity is realized. In this embodiment, the heating element may be one or more of a heating lamp tube, a heating rod and a heating wire.
The heating module 21 further comprises a hot air circulating device respectively arranged in each unit heating chamber, and hot air in each unit heating chamber can flow through the hot air circulating device, so that the temperature distribution in each unit heating chamber is more uniform.
The heating module 21 further includes a heat insulation device disposed on the sidewall of the heating chamber, in this embodiment, the heat insulation device is disposed on the sidewalls of the
The
The
The
The bottom of the combustion tower 23 is provided with an air inlet, the air inlet is connected with a waste discharge port at the top of the heating module 21, the combustion tower 23 is positioned at one end part of the heating module 21 in the sheet feeding direction of the curing furnace 2, namely, the waste gas generated in the initial heating stage of the heating module 21 firstly enters the combustion tower 23 to be combusted, because the waste gas generated in the initial heating stage of the heating module 21 contains more granular waste gas, the waste gas can be fully combusted through the combustion tower 23 and then discharged to the outside, so that the environmental pollution can be reduced, and in the subsequent heating of the heating module 21, the content of pollutants in the generated waste gas is less, and the waste gas can be directly discharged to the outside through the
As shown in fig. 3, the
The
The
As shown in fig. 5, the
As shown in fig. 5, the
The
As shown in fig. 6, the
As shown in fig. 1 ~ and fig. 4, the
The
As shown in fig. 1, fig. 3 and fig. 4, the same axial position of each transmission roller 41 is provided with a positioning structure for positioning the solar cell, and the solar cell can be ensured to be linearly transmitted in the transmission process through the positioning structure, so that the position deviation is avoided, and the transmission precision of the solar cell is improved.
The positioning structure includes a
The solar cell HIT or HJT process solidification and hydrogen passivation integrated machine further comprises a
In the production and manufacturing process of the solar cell, the solar cell is firstly transmitted to a heating module 21 of a curing oven 2 through a
The HIT or HJT process curing and hydrogen passivation integrated machine for the solar cell is simple in structure, the solar cell can be directly transmitted into a hydrogen passivation furnace for hydrogen passivation through a transmission device after being cured in a curing furnace, the process is continuous, the process step of carrying the solar cell is omitted, the production efficiency can be improved, and the productivity is improved; but also can avoid damaging the solar cell in the carrying process and influencing the quality of the solar cell.
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
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