CN115318542A - Wet film coating equipment for solar cell - Google Patents
Wet film coating equipment for solar cell Download PDFInfo
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- CN115318542A CN115318542A CN202210957375.1A CN202210957375A CN115318542A CN 115318542 A CN115318542 A CN 115318542A CN 202210957375 A CN202210957375 A CN 202210957375A CN 115318542 A CN115318542 A CN 115318542A
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- extrusion
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- wet film
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0873—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work
- B05C1/0878—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work responsive to the pressure applied between two rollers, e.g. between the coating roller and a backing roller or between the coating roller and a dosing roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- Coating Apparatus (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses wet film coating equipment of a solar cell, which comprises a conveying device, a roll coating device and a liquid feeding device, wherein the roll coating device comprises a coating roller, an extrusion assembly and a liquid feeding assembly, and also comprises an automatic control unit which is connected with the extrusion assembly and the liquid feeding device and used for controlling the working states of the extrusion assembly and the liquid feeding device; the automatic control unit comprises a PLC (programmable logic controller) module which is respectively connected with the extrusion assembly and the liquid feeding device and used for controlling the extrusion strength of the extrusion assembly to the coating roller and the liquid feeding flow of the liquid feeding device; and the monitoring module is connected with the PLC module and used for feeding back working signals to the PLC module. The wet film coating equipment provided by the invention can automatically control the extrusion pressure of the extrusion roller and the liquid supply flow of the dripping device, so that the aim of uniform roll coating is fulfilled, the coating uniformity of a wet film layer is improved, the labor intensity of workers is reduced, and potential safety hazards are eliminated.
Description
Technical Field
The invention relates to the technical field of process production of solar cells, in particular to wet film coating equipment for a solar cell.
Background
The solar cell is a photoelectric semiconductor sheet which directly generates electricity by using sunlight, can output voltage as long as being irradiated by light with certain brightness, and can be used for daily use and storage by people through the output voltage.
In the preparation process of the solar cell chip, a wet film material needs to be coated for chemical reaction or physical change, for example, the wet film material can be photoresist aqueous solution or copper chloride aqueous solution, and the wet film material is filled in a laser scribing line of the solar cell, so that sub-cells are mutually insulated and copper ions are diffused, the barrier effect in the solar cell is eliminated, and the ohmic contact of the cell is optimized. The wet film layer is used as an important buffer layer of the solar cell, the coating mode is mainly a roll coating mode at present, and the wet film solution is dripped onto the sponge roller, so that the aim of coating is achieved by means of extrusion contact of the sponge roller and the glass substrate of the solar cell.
The optimal technique at present is in pumping wet film solution to the dropwise add device from the solution tank through the diaphragm pump, and the dropwise add device drips wet film solution into the crack between squeeze roll and the sponge roller, and through the synchronous counter rotation of squeeze roll and sponge roller, the squeeze roll extrudees the sponge roller, makes the sponge roller absorb wet film solution, then the extrusion contact of rethread sponge roller and solar cell glass substrate coats wet film solution on the film deposit of glass substrate. The extrusion force of the extrusion roller to the sponge roller can be adjusted, so that the sponge roller can extrude redundant solution. The solution in the gap between the squeezing roller and the sponge roller is insufficient, so that the sponge roller is crystallized and crystallized, the substrate is coated badly and the sponge roller is damaged; excessive solution causes leakage at the side of the sponge roller, and causes poor appearance of contaminating the light receiving surface of the chip, so that the amount of solution in the gap needs to be controlled. At present, the amount of wet film solution in the gaps of the squeeze roller and the sponge roller is controlled by manually adjusting the flow of the dripping device, so that production workers need to pay attention to the coating effect and adjust equipment at any time, the workload of the workers is greatly increased, the flow of the dripping device is manually adjusted, great potential safety hazards exist, and the personal safety of the workers is seriously threatened.
Because the length of the sponge roller is matched with the size of the solar cell, when the size of the solar cell is larger, the length of the sponge roller is longer, the too long sponge roller can cause the uneven liquid locking area on the sponge roller and the uneven extrusion pressure between the sponge roller and the extrusion roller, so that the coating amount of the substrate is uneven, the uniformity and the quality of a wet film layer after roll coating are poor, the requirement cannot be met, and meanwhile, the liquid leakage phenomenon can be generated at two ends of the sponge roller, so that the illuminated surface of the substrate is polluted, the appearance of the cell is poor, the poor cost is increased, the conversion efficiency is reduced, meanwhile, personnel are required to timely clean the liquid leakage of the sponge roller, and a plurality of uncertain factors are brought to production.
Disclosure of Invention
To the problem that provides among the above-mentioned background art, the aim at of this application provides a solar cell's wet film coating equipment, can automatic control squeeze roll's the extrusion pressure degree and the feed liquor flow of dropwise add device, reaches the purpose of even roll-coating, promotes the coating homogeneity of wet film rete, alleviates staff's intensity of labour, eliminates the potential safety hazard.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a solar cell's wet film coating is equipped, is including the conveyor that is used for carrying the battery base plate, be used for to the battery base plate wet film solution roll scribble the device and be used for providing the liquid feeding device of wet film solution to the roll scribble device, roll scribble the device and set up in the conveyor top, roll scribble the device including coating roller, extrusion subassembly and liquid feeding subassembly, the coating roller with be equipped with the clearance between the conveyor, the clearance matches with the thickness of battery base plate, the coating roller contacts with extrusion subassembly and is provided with the slot above the contact surface of coating roller and extrusion subassembly, the liquid feeding subassembly sets up the slot top, the liquid feeding subassembly with liquid feeding device intercommunication, the liquid feeding device includes the pump body of adjustable flow, its characterized in that:
the automatic control unit is connected with the extrusion assembly and the liquid feeding device and used for controlling the working states of the extrusion assembly and the liquid feeding device;
the automatic control unit includes:
the PLC module is respectively connected with the extrusion assembly and the liquid feeding device and is used for controlling the extrusion strength of the extrusion assembly to the coating roller and the liquid feeding flow of the liquid feeding device;
and the monitoring module is connected with the PLC module and used for feeding back working signals to the PLC module.
The automatic control unit realizes the automatic control of the extrusion force of the extrusion roller on the coating roller and the automatic adjustment of the liquid feeding flow of the liquid feeding device, ensures that the solution amount in the groove is in a reasonable liquid level interval, ensures that the coating roller absorbs enough roll coating solution, ensures that the coating roller is uniformly coated all the time during roll coating, and achieves the purpose of uniform roll coating.
Preferably, the monitoring module comprises an infrared monitoring device for monitoring the solution content in the trough between the coating roller and the pressing assembly.
In the invention, the monitoring module adopts an infrared monitoring device to monitor the content of the solution in the groove and feed the content of the solution back to the PLC controller to control the working states of the extrusion assembly and the liquid feeding device: infrared monitoring device monitors the solution of ditch inslot, when the inslot solution reduces, infrared monitoring device's infrared ray shortens, the PLC controller can receive solution reduction feedback signal, after the solution liquid level of ditch inslot is less than the liquid level value that the PLC controller set for, the PLC controller can trigger for liquid device increase to give the liquid flow, carry out the fluid infusion to the ditch groove through the liquid feeding subassembly, the PLC controller can trigger simultaneously and extrude the extrusion subassembly increase to the coating roller, make the coating roller absorb more solution. On the contrary, when the inslot solution increased, the PLC controller can receive solution increase feedback signal, surpasss the settlement liquid level of PLC controller when the solution increase volume after, the PLC controller can trigger and stop to give the liquid device and give the liquid, and the liquid feeding subassembly is no longer to the inslot adding solution, and the PLC controller can trigger simultaneously and extrude the subassembly and reduce the extrusion to the coating roller to reduce the imbibition volume of coating roller. By this operation, the coating roller is allowed to absorb enough roll coating solution, and it is ensured that the solution absorbed by the coating roller is uniformly coated all the time during roll coating.
Preferably, the infrared monitoring device is mounted on the liquid feeding assembly. The liquid feeding subassembly sets up in the slot top, and infrared monitoring device sets up on the liquid feeding subassembly, can promote the degree of accuracy that infrared monitoring device monitored slot solution volume.
Preferably, the liquid feeding assembly comprises a liquid supply pipe and a plurality of droppers communicated with the liquid supply pipe, the droppers are vertically arranged above the grooves, and the infrared monitoring device is arranged on the droppers. The position of the dropper is closer to that of the groove, and the infrared monitoring device is arranged on the dropper, so that the accuracy of monitoring the amount of the groove solution by the infrared monitoring device can be further improved.
Preferably, the dropper is arranged above the groove at equal intervals, so that the liquid adding uniformity of the liquid adding assembly to the groove is enhanced, the coating roller can more easily and uniformly absorb the wet film solution, and the coating uniformity is improved.
Preferably, the infrared monitoring device is installed on the three droppers corresponding to the two sides and the center of the groove, so that the accuracy of monitoring data is improved, and the using amount of the monitoring device is reduced.
The infrared monitoring device is used for monitoring the content of the solution in the groove, and one or more infrared monitoring devices can be arranged above the groove according to the monitoring area of the infrared monitoring device and the length of the groove. In order to ensure the accuracy of the monitoring data, more than two infrared monitoring devices can be arranged to compare and analyze the data, and on the premise of ensuring the monitoring area of the infrared monitoring devices, the infrared monitoring devices are respectively arranged at the central position and two sides of the groove, so that the accuracy of the monitoring data can be further improved.
Preferably, extrusion assembly includes squeeze roll, squeeze wheel and adjusts the adjustment mechanism of distance between squeeze wheel and the squeeze roll, and squeeze roll and coating roller contact, squeeze wheel and squeeze roll contact, adjustment mechanism is connected squeeze wheel, squeeze roll and coating roller linkage.
In the invention, the extrusion wheel is arranged to extrude the extrusion roller, the adjusting mechanism is linked with the extrusion roller to extrude the coating roller, and the extrusion pressure between the extrusion roller and the coating roller can be equalized by the arrangement of the extrusion wheel, so that the coating uniformity of the substrate is improved.
In the present invention, the number of the extrusion wheels is adjusted according to the length of the coating roller. Preferably, the number of the squeezing wheels is equal to the number of the dropping tubes, and the positions of the squeezing wheels correspond to the positions of the dropping tubes.
Further, the coating roller includes a sponge roller. The sponge roller is a roller body made of sponge, has numerous micropores, and the micropores communicate with each other, so it has good hydroscopicity, and in addition, the sponge roller still has better corrosion resisting property, and consequently, the use of sponge roller can make the roll coating obtain better effect, and high density and the super hydroscopicity through the sponge roller can ensure that the surface of sponge roller can adsorb sufficient wet film solution liquid to realize even coating.
Compared with the prior art, the invention uses the monitoring device to monitor the solution quantity in the groove, and the monitoring device is used as a working signal for controlling the working state of the extrusion assembly and the liquid feeding device by the automatic control unit, thereby realizing the automatic control of the extrusion force of the extrusion roller on the coating roller and the automatic adjustment of the liquid feeding flow of the liquid feeding device, ensuring that the solution quantity in the groove is in a reasonable liquid level interval, avoiding the condition that the crystal of the coating roller is caused by the too small solution quantity in the groove and the pollution of the chip illuminated face is caused by the too much leaked liquid, ensuring that the coating roller absorbs enough roll coating solution, ensuring that the coating roller is always uniformly coated during roll coating, achieving the purpose of uniform roll coating, and further solving the problems of uneven coating, poor film quality, crystallization and poor appearance caused by the pollution of the chip illuminated face of the existing roll coating device. The coating equipment adopts the PLC to realize the automatic adjustment of the components, thereby reducing the labor intensity of workers and eliminating potential safety hazards.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a block diagram of an automatic control unit according to an embodiment of the present invention.
Illustration of the drawings: 1-a conveying device; 2-a coating roller; 3-an extrusion wheel; 4-a squeeze roll; 5-an adjusting mechanism; 6-a groove; 7-a liquid supply tube; 8-a dropper; 9-an infrared monitoring device; 10-cell substrate.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention is further described in detail with reference to specific embodiments.
Referring to fig. 1 to 3, a wet film coating apparatus for a solar cell includes a conveying device 1 for conveying a cell substrate 10, a roll coating device for coating the cell substrate with a wet film solution, and a liquid feeding device (not shown) for supplying the roll coating device with the wet film solution, the roll coating device is disposed above the conveying device 1, the roll coating device includes a coating roller 2, a squeezing assembly and a liquid feeding assembly, the squeezing assembly includes a squeezing wheel 3, a squeezing roller 4 and an adjusting mechanism 5, a groove 6 is disposed between the squeezing roller 4 and the coating roller 2, the liquid feeding assembly includes a liquid feeding pipe 7 and a dropping pipe 8, the liquid feeding pipe 7 is communicated with the liquid feeding device through a pipeline, the liquid feeding device conveys the wet film solution to the liquid feeding pipe 7 through a pump body, the dropping pipe 8 feeds the wet film solution into the groove, the squeezing roller 4 presses the coating roller 2 through a reverse rotation of the squeezing roller 4 at the same linear velocity as that of the coating roller 2, so that the coating roller 2 absorbs the solution in the groove 6, and the cell substrate 10 is conveyed below the coating roller 2 by the conveying device 1.
Preferably, the dropper 8 is arranged above the groove 6 at equal intervals, so that the liquid adding uniformity of the liquid adding assembly to the groove is enhanced, the coating roller can more easily and uniformly absorb the wet film solution, and the coating uniformity is improved.
In the invention, the extrusion wheel 3 is arranged to extrude the extrusion roller 4, the adjusting mechanism 5 is linked with the extrusion roller 4 to extrude the coating roller 2, and the extrusion pressure between the extrusion roller and the coating roller can be equalized by the arrangement of the extrusion wheel 3, thereby improving the coating uniformity of the substrate.
The number of squeezing wheels 3 is adjusted according to the length of the coating roller. In another embodiment of the invention, the number of the squeezing wheels is equal to the number of the dropping tubes, and the positions of the squeezing wheels correspond to the positions of the dropping tubes.
Referring to fig. 4, in an embodiment of the present invention, the apparatus for coating a wet film of a solar cell further includes an automatic control unit connected to the pressing assembly and the liquid feeding device, for controlling the working states of the pressing assembly and the liquid feeding device;
the automatic control unit includes:
the PLC module is respectively connected with the extrusion assembly and the liquid feeding device and is used for controlling the extrusion strength of the extrusion assembly to the coating roller and the liquid feeding flow of the liquid feeding device;
and the monitoring module is connected with the PLC module and used for feeding back working signals to the PLC module.
The monitoring module comprises infrared monitoring means 9 for monitoring the solution content in the channel 6 between the coating roll 2 and the squeeze roll 4.
In the embodiment of the invention, the monitoring module adopts an infrared monitoring device to monitor the content of the solution in the groove and feed the content of the solution back to the PLC controller to control the working states of the extrusion assembly and the liquid feeding device: infrared monitoring device 9 monitors the solution in slot 6, when solution reduces in slot 6, infrared monitoring device's infrared ray shortens, the PLC controller can receive solution and reduce feedback signal, after the solution liquid level in the slot is less than the liquid level value that the PLC controller set for, the PLC controller can trigger the pump body increase of giving the liquid device and give the liquid flow, carry out the fluid infusion to the slot through the liquid feeding subassembly, the PLC controller can trigger adjustment mechanism 5 simultaneously and increase the extrusion of extrusion wheel 3 to squeeze roll 4, thereby increase the extrusion to coating roller 2, make the coating roller absorb more solution. On the contrary, when solution increases in the slot 6, the PLC controller can receive solution increase feedback signal, after the solution increase amount surpassed the settlement liquid level of PLC controller, the PLC controller can trigger the pump body of giving the liquid device and stop giving liquid, and the solution is no longer added to the slot to the liquid feeding subassembly, and the PLC controller can trigger adjustment mechanism 5 simultaneously and reduce the extrusion of extrusion wheel 3 to squeeze roll 4 to reduce the extrusion to coating roll 2, reduce the liquid absorption volume of coating roll. Through the operation, the coating roller can be enabled to absorb enough roll coating solution all the time, and the solution absorbed by the coating roller is ensured to be uniformly coated all the time during roll coating.
In another embodiment of the invention, the infrared monitoring device 9 is mounted on the charging assembly.
In another embodiment of the present invention, the infrared monitoring device 9 is mounted on the dropper 8. Preferably, in another embodiment of the present invention, the infrared monitoring device 9 is installed on three droppers 8 corresponding to two sides and the center of the groove 6.
The infrared monitoring device is used for monitoring the content of the solution in the groove, and one or more infrared monitoring devices can be arranged above the groove according to the monitoring area of the infrared monitoring device and the length of the groove. In order to ensure the accuracy of the monitoring data, more than two infrared monitoring devices can be arranged to compare and analyze the data, and on the premise of ensuring the monitoring area of the infrared monitoring devices, the infrared monitoring devices are respectively arranged at the central position and two sides of the groove, so that the accuracy of the monitoring data can be further improved.
Further, the coating roller 2 includes a sponge roller. The sponge roller is a roll body that the sponge was made, and the sponge roller has numerous micropores, and intercommunication each other between the micropore moreover, therefore it has good hydroscopicity, and in addition, the sponge roller still has better corrosion resisting property, and consequently, the use of sponge roller can make the roll coating obtain better effect, and through the high density and the super hydroscopicity of sponge roller, can ensure that the surface of sponge roller can adsorb sufficient wet film solution liquid to realize even coating.
It should be noted that the installation positions of the liquid feeding device and the PLC controller are not shown in the drawings, and the installation positions thereof may be determined according to the field installation conditions. In the embodiment of the invention, the pump body uses a pneumatic diaphragm pump, and the pneumatic diaphragm pump adopts compressed air as a power source, can be used for various corrosive liquids and can be used for flow regulation. In other embodiments, a valve may be used to regulate flow.
The invention uses the monitoring device to monitor the solution amount in the groove, and the monitoring device is used as a working signal of an automatic control unit for controlling the working states of the extrusion assembly and the liquid feeding device, thereby realizing the automatic control of the extrusion force of the extrusion roller on the coating roller and the automatic adjustment of the liquid feeding flow of the liquid feeding device, ensuring that the solution amount in the groove is in a reasonable liquid level interval, avoiding the condition that the light receiving surface of the chip is polluted by leaked liquid caused by too little solution amount in the groove and ensuring that the coating roller absorbs enough roll coating solution, so that the coating roller is uniformly coated all the time during roll coating, achieving the purpose of uniform roll coating, and further solving the problems of uneven coating, poor film quality, crystallization and poor appearance caused by pollution of the light receiving surface of the chip in the existing roll coating device. The coating equipment adopts the PLC to realize the automatic adjustment of the components, thereby reducing the labor intensity of workers and eliminating potential safety hazards.
The above are only preferred embodiments of the present invention, and it should be noted that the above preferred embodiments should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. The utility model provides a solar cell's wet film coating is equipped, is including the conveyor that is used for carrying the battery base plate, is used for to battery base plate wet film solution's roll scribble the device and be used for providing the liquid feeding device of wet film solution to the roll scribble device, the roll scribble device sets up in the conveyor top, the roll scribble device includes coating roller, extrusion subassembly and liquid feeding subassembly, the coating roller with be equipped with the clearance between the conveyor, the clearance matches with the thickness of battery base plate, the coating roller contacts with extrusion subassembly and is provided with the slot above the contact surface of coating roller and extrusion subassembly, the liquid feeding subassembly sets up above the slot, the liquid feeding subassembly with the liquid feeding device intercommunication, the liquid feeding device includes the pump body of adjustable flow, its characterized in that:
the automatic control unit is connected with the extrusion assembly and the liquid feeding device and used for controlling the working states of the extrusion assembly and the liquid feeding device;
the automatic control unit includes:
the PLC module is respectively connected with the extrusion assembly and the liquid feeding device and is used for controlling the extrusion strength of the extrusion assembly to the coating roller and the liquid feeding flow of the liquid feeding device;
and the monitoring module is connected with the PLC module and used for feeding back working signals to the PLC module.
2. The wet film coating apparatus for a solar cell according to claim 1, wherein: the monitoring module comprises an infrared monitoring device for monitoring the solution content in the groove between the coating roller and the pressurizing assembly.
3. The wet film coating apparatus for a solar cell according to claim 2, wherein: the infrared monitoring device is installed on the liquid feeding assembly.
4. The wet film coating apparatus for a solar cell according to claim 3, wherein: the liquid feeding assembly comprises a liquid supply pipe and a plurality of droppers communicated with the liquid supply pipe, the droppers are vertically arranged above the grooves, and the infrared monitoring device is installed on the droppers.
5. The wet film coating apparatus for a solar cell according to claim 4, wherein: the droppers are equally spaced above the groove.
6. The wet film coating apparatus for a solar cell according to claim 4, wherein: the infrared monitoring devices are arranged on the three droppers corresponding to the two sides and the center of the groove.
7. The wet film coating apparatus for a solar cell according to claim 1, wherein: the extrusion assembly comprises an extrusion roller, an extrusion wheel and an adjusting mechanism for adjusting the distance between the extrusion wheel and the extrusion roller, the extrusion roller is in contact with the coating roller, the extrusion wheel is in contact with the extrusion roller, and the adjusting mechanism is used for connecting the extrusion wheel, the extrusion roller and the coating roller in a linkage manner.
8. The wet film coating apparatus for a solar cell according to claim 7, wherein: the number of the squeezing wheels is equal to that of the dropper.
9. The wet film coating apparatus for a solar cell according to claim 8, wherein: the position of the squeezing wheel corresponds to the position of the dropper.
10. The wet film coating apparatus for a solar cell according to claim 1, wherein: the coating roller comprises a sponge roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210957375.1A CN115318542B (en) | 2022-08-10 | 2022-08-10 | Wet film coating equipment for solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210957375.1A CN115318542B (en) | 2022-08-10 | 2022-08-10 | Wet film coating equipment for solar cell |
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| Publication Number | Publication Date |
|---|---|
| CN115318542A true CN115318542A (en) | 2022-11-11 |
| CN115318542B CN115318542B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210957375.1A Active CN115318542B (en) | 2022-08-10 | 2022-08-10 | Wet film coating equipment for solar cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115608669A (en) * | 2022-11-22 | 2023-01-17 | 苏州方普智能装备有限公司 | Spraying and wiping device for cleaning surface of notebook computer keyboard |
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