CN210245522U - Roll-to-roll chemical water bath deposition system and film covering device thereof - Google Patents
Roll-to-roll chemical water bath deposition system and film covering device thereof Download PDFInfo
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- CN210245522U CN210245522U CN201920952367.1U CN201920952367U CN210245522U CN 210245522 U CN210245522 U CN 210245522U CN 201920952367 U CN201920952367 U CN 201920952367U CN 210245522 U CN210245522 U CN 210245522U
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Abstract
The utility model provides a volume to volume chemical water bath deposition system and tectorial membrane device thereof relates to photovoltaic cell technical field. The laminating device is used for laminating the photovoltaic substrate; the method comprises the following steps: the device comprises a roll shaft, a driving part, a deviation correcting mechanism and a bracket assembly; one end of the roll shaft is in transmission connection with the driving piece, and the other end of the roll shaft is supported by the support assembly; the roll shaft is provided with a film-coated base material, and the photovoltaic base passes through the deviation rectifying mechanism and is conveyed along the roll shaft. The utility model provides a tectorial membrane device passes through set up the tectorial membrane substrate on the roller, work as the photovoltaic basement is followed in the roller transmission course, the tectorial membrane substrate can the surface of photovoltaic basement applies the one deck protection film, also can cover the protection film again on the sedimentary buffer layer of photovoltaic basement, thereby prevents photovoltaic basement rolling in-process back has the surface damage of buffer layer to the deposit.
Description
Technical Field
The utility model relates to a photovoltaic cell technical field particularly, relates to a volume to volume chemical water bath deposition system and tectorial membrane device thereof.
Background
The thin film copper indium gallium selenide battery is gradually industrialized no matter the research and development efficiency of a laboratory and the mass production efficiency of components are the same as the crystalline silicon battery. Compared with a crystalline silicon battery, the thickness of the copper indium gallium selenide battery can be one percent of that of the crystalline silicon battery. Therefore, the CIGS thin film battery can be deposited on a flexible substrate to prepare a bendable flexible thin film battery. In the process of flexible thin film industrialization, how to further improve the photoelectric conversion efficiency of the battery and reduce the assembly cost is always the direction of the development of each enterprise. In addition to the main concern of improving the characteristics of the photovoltaic material (optimizing and improving the copper indium gallium selenide absorption layer, the buffer layer and the window layer), the method also focuses on optimizing and improving the production process or equipment. At present, each functional layer of the flexible copper indium gallium selenide thin-film battery is mainly prepared by a roll-to-roll production process, and in the preparation of the buffer layer of the existing flexible thin-film copper indium gallium selenide thin-film battery, one of the main modes is deposition by a non-vacuum water bath method. The flexible substrate is tiled through an unreeling system, is deposited with a buffer layer material through a deposition system, and is rolled after further treatment.
In the prior art, the buffer layer of the flexible film battery is prepared by deposition through a water bath method, although the buffer layer material can be deposited through a roll-to-roll device and a water bath method, after the deposition process is finished, the buffer layer material enters a rolling process, due to the limitation of a roll-to-roll process, the buffer layer film layer which is just deposited, cleaned and dried is bound to be in contact with the back surface of the flexible substrate, and due to the unevenness of the back surface and the shearing force in the rolling process, the buffer layer film surface is bound to be damaged, so that the efficiency of the battery is reduced.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem of rolling in-process buffer layer rete damage among the prior art, the utility model discloses a main aim at provides a volume to volume chemical water bath deposition system and tectorial membrane device that reduces rolling process buffer layer membrane face damage.
In a first aspect, an embodiment of the present invention provides a film covering device of a roll-to-roll chemical water bath deposition system, which is used for covering a film on a photovoltaic substrate; the method comprises the following steps: the device comprises a roll shaft, a driving part, a deviation correcting mechanism and a bracket assembly; one end of the roll shaft is in transmission connection with the driving piece, and the other end of the roll shaft is supported by the support assembly; the roll shaft is provided with a film-coated base material, and the photovoltaic base passes through the deviation rectifying mechanism and is conveyed along the roll shaft.
The utility model discloses the tectorial membrane device of volume to volume chemical water bath deposition system that the first embodiment provided, through set up the tectorial membrane substrate on the roller, when the photovoltaic basement along the roller transmission in-process, the tectorial membrane substrate can be in the surface of photovoltaic basement coats a layer of protection film, also can cover the protection film again on the buffer layer of photovoltaic basement deposit, thereby prevent the surface damage of the back to the deposit buffer layer in the rolling-up process of photovoltaic basement; the roller shaft is driven by the driving piece to rotate so as to transmit the photovoltaic substrate, and the roller shaft is supported by the supporting component, so that the rotating stability of the roller shaft is ensured; the deviation rectifying mechanism enables the laminating process to be guaranteed to be stable due to the fact that the laminating base material and the photovoltaic substrate are aligned in the laminating process.
Further, in a preferred embodiment of the present invention, the bracket assembly includes: the roller shaft supporting device comprises a support, a lifting mechanism and a guide rail, wherein one end of the support is connected with the guide rail in a sliding mode, and the other end of the support is used for supporting the roller shaft; the support is in transmission connection with the lifting mechanism, and the lifting mechanism drives the support to lift.
Further, in a preferred embodiment of the present invention, the film-coated substrate is one or more of teflon, polyethylene, polypropylene and polyethylene terephthalate.
In a second aspect, the present invention provides a roll-to-roll chemical water bath deposition system, which comprises an unwinding device, a deposition device, a winding device and any one of the film coating devices of the roll-to-roll chemical water bath deposition system;
the unwinding device, the deposition device, the film covering device and the winding device are sequentially connected in a transmission manner; the photovoltaic substrate released by the unreeling device sequentially passes through the deposition device and the film laminating device and is reeled in the reeling device.
The utility model discloses volume to volume chemical water bath deposition system that the second embodiment provided, in deposition system, the photovoltaic basement is in the process after the deposition device deposits the buffer layer, through setting up the tectorial membrane device carries out the surface increase one deck protection film at the deposit buffer layer the coiling mechanism carries out the rolling in-process, the back of photovoltaic basement at first contacts with the protection film to effectively protect sedimentary buffer layer, thereby guarantee the efficiency and the yield of battery.
Further, in a preferred embodiment of the present invention, the transmission speed of the photovoltaic substrate is 0.5m/Min to 5 m/Min.
Further, in a preferred embodiment of the present invention, the deposition apparatus comprises a main reaction zone, a cleaning zone and a drying zone which are sequentially connected.
Further, in a preferred embodiment of the present invention, the main reaction area includes a water bath reaction chamber, a plurality of transmission rollers are disposed in the water bath reaction chamber, and the unwinding device passes through the transmission rollers and the unwinding device is in transmission connection.
Further, in a preferred embodiment of the present invention, the cleaning area and the drying area are provided with a roller assembly connected to the transmission roller in a transmission manner, the transmission roller passes through the roller assembly and the film covering device in a transmission manner, and the film covering device is connected to the unwinding device in a transmission manner.
Further, in a preferred embodiment of the present invention, the deposition temperature of the main reaction zone is 60-80 ℃.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a film covering device of a roll-to-roll chemical water bath deposition system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a roll-to-roll chemical water bath deposition system according to an embodiment of the present invention.
Reference numerals:
1. an unwinding device;
2. the film laminating device comprises a film laminating device 21, a roller shaft 22, a driving piece 23, a deviation rectifying mechanism 24, a bracket assembly 241, a support 242, a lifting mechanism 243 and a guide rail;
3. a deposition device 31, a main reaction zone 32, a cleaning zone 33 and a drying zone;
4. a chemical liquid supply device; 5. a winding device; 6. a photovoltaic substrate; 7. a film-coated base material.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
A roll-to-roll chemical water bath deposition system may be used for: the buffer layer of the flexible thin film battery is deposited by using roll-to-roll equipment and a water bath method, and the buffer layer film layer which is just deposited, cleaned and dried is inevitably contacted with the back surface of the flexible substrate due to the limitation of roll-to-roll process procedures in the process from the completion of buffer layer deposition to the rolling. As the unevenness of the back surface and the shearing force in the rolling process tend to damage the film surface of the buffer layer, in order to solve the problem, as shown in fig. 1, an embodiment of the utility model provides a film coating device 2 of a roll-to-roll chemical water bath deposition system, which is used for coating a film on a photovoltaic substrate 6; the method comprises the following steps: a roll shaft 21, a driving part 22, a deviation correcting mechanism 23 and a bracket assembly 24; one end of the roll shaft 21 is in transmission connection with a driving piece 22, and the other end of the roll shaft 21 is supported by a bracket assembly 24; the roller 21 is provided with a film-coated base material 7, and the photovoltaic substrate 6 passes through the deviation rectifying mechanism 23 and is conveyed along the roller 21. The utility model discloses the tectorial membrane device 2 of volume to volume chemical water bath deposition system that the first embodiment provided, through set up tectorial membrane substrate 7 on roller 21, when photovoltaic basement 6 along roller 21 transmission in-process, tectorial membrane substrate 7 can lay a layer of protection film on the surface of photovoltaic basement 6, also can cover the protection film again on the buffer layer of photovoltaic basement 6 deposit to prevent that the back from damaging the surface of depositing the buffer layer in the rolling process of photovoltaic basement 6; the roller shaft 21 is driven by the driving part 22 to rotate so as to convey the photovoltaic substrate 6, and the roller shaft 21 is supported by the supporting component, so that the rotating stability of the roller shaft 21 is ensured; the deviation correcting mechanism 23 is arranged, so that the alignment relation between the film coating base material 7 and the photovoltaic substrate 6 can be ensured in the film coating process, and the film coating process is ensured to be stable.
The driving member 22 may be a driving motor for providing a rotating power for the roller shaft 21; the deviation rectifying mechanism 23 can adopt a conventional deviation rectifying device in the existing coil stock discharging process.
In the mode that the film-coated base material 7 is arranged on the roll shaft 21, the roll material of the film-coated base material 7 can be directly arranged on the roll shaft 21, and when the photovoltaic substrate 6 is conveyed to the roll shaft 21, the free end of the roll material of the film-coated base material 7 is attached and fixed with the photovoltaic substrate 6, and then the photovoltaic substrate 6 with the film-coated base material 7 is continuously conveyed to the unwinding device 1; or a conveyor belt is arranged between the film laminating device 2 and the unwinding device 1, the film laminating base material 7 is laid on the conveyor belt, and when the photovoltaic substrate 6 is conveyed to the conveyor belt to be laminated, the film is wound.
In view of the disassembly of the device, in the embodiment of the present invention, as shown in fig. 1, the bracket assembly 24 includes: a support 241, a lifting mechanism 242 and a guide rail 243, wherein one end of the support 241 is connected with the guide rail 243 in a sliding manner, and the other end of the support 241 is used for supporting the roller shaft 21; the support 241 is connected to the lifting mechanism 242 in a transmission manner, and the lifting mechanism 242 drives the support 241 to lift. The arrangement of the guide rail 243 enables the support 241 to be adjusted in position along the guide rail 243, and in this embodiment, the guide rail 243 is inclined from bottom to top, so that the height of the support 241 can be adjusted conveniently, that is, the distance between the support 241 and the roller shaft 21 and the position of a contact point between the support 241 and the roller shaft 21 can be adjusted, the position of the support 241 can be adjusted conveniently according to the width requirement of the actual photovoltaic substrate 6, and the support 241 can be guaranteed to effectively support the roller shaft 21. When the deposition process is finished, the driving motor is turned off, the holder 241 is lowered along the guide rail 243, and the holder 241 can be removed using the guide rail 243 (the guide rail 243 with the holder 241 attached thereto is removed together), and then the roll of the coated base material 7 remaining after coating on the roller shaft 21 is removed.
The lifting structure may be a cylinder, a ball screw, or the like, and is in transmission connection with the support 241 to control the lifting of the support 241.
In this embodiment, the film-coated substrate 7 is a flexible, transparent and smooth plastic film, and the material may be one or more of polytetrafluoroethylene, polyethylene, polypropylene and polyethylene terephthalate.
As shown in fig. 2, another embodiment of the present invention provides a roll-to-roll chemical water bath deposition system, which includes an unwinding device 1, a deposition device 3, a winding device 5 and a film covering device 2 of the roll-to-roll chemical water bath deposition system; the unwinding device 1, the deposition device 3, the film covering device 2 and the winding device 5 are sequentially connected in a transmission manner; the photovoltaic substrate 6 released by the unreeling device 1 sequentially passes through the deposition device 3 and the film laminating device 2 and is reeled in the reeling device 5. The utility model discloses volume to volume chemical water bath deposition system that the second embodiment provided, in deposition system, photovoltaic basement 6 is after 3 deposit buffer layers through deposition device, carries out the surface increase one deck protection film at the deposit buffer layer through the tectorial membrane device 2 that sets up, carries out the rolling in-process at coiling mechanism 5, and photovoltaic basement 6's the back is at first with the protection film contact to effectively protect sedimentary buffer layer, thereby guarantee the efficiency and the yield of battery.
Wherein, the deposition device 3 comprises a main reaction zone 31, a cleaning zone 32 and a drying zone 33 which are communicated in sequence. The flexible photovoltaic substrate coiled material of the photovoltaic module is tiled through the unreeling device 1 and deposited on the buffer layer by the deposition device 3: the flexible substrate coiled material is immersed in the reaction liquid of the main reaction zone 31 for depositing a buffer layer, and then is cleaned in a cleaning zone 32 and dried in a drying zone 33; the film coating device 2 is used for coating a protective film, and then the winding device 5 is used for winding. The precursor of the deposition buffer layer material in the main reaction zone 31 can be selected from cadmium sulfate, cadmium chloride, cadmium oxalate and other cadmium salt solutions and thiourea, wherein the concentration of the cadmium salt is 0.1-1% by weight, and the concentration of the thiourea is 1-10% by weight. Selecting ammonia water or sodium citrate as a complexing agent, wherein the concentration range of the complexing agent is as follows: 1-10% wt. The reaction solution is sprayed onto the substrate web by the chemical liquid supply device 4, and the selected photovoltaic substrate web may be made of stainless steel, polyimide, or the like. The deposition temperature of the main reaction zone 31 is set generally at 60-80 ℃.
Optionally, the unwinding device 1 and the winding device 5 are winding rollers connected with a power transmission device (which may be a motor); also be provided with the structure that is used for supporting and transmitting photovoltaic basement 6 in the deposition device 3, it is specific, main reaction zone 31 includes the water bath reacting chamber, is provided with a plurality of transmission rollers in the water bath reacting chamber, is provided with the roller bearing subassembly of being connected with the transmission roller transmission in rinsing district 32 and the drying zone 33, unwinding device 1 is connected with tectorial membrane device 2 transmission through the transmission roller, specific transmission roller passes through the roller bearing subassembly and is connected with tectorial membrane device 2 transmission, tectorial membrane device 2 is connected with unwinding device 1 transmission. The winding roller of the unwinding device 1, the transmission roller and the rolling shaft assembly in the deposition device 3, the roller shaft 21 of the film covering device 2 and the winding roller of the winding device 5 can be provided with independent motors, and the motors are controlled to be opened and closed in a unified manner through a control cabinet and operate within a preset rotating speed range; the photovoltaic substrate 6 coiled materials are transmitted on the devices, and the unreeling device 1, the deposition device 3, the film laminating device 2 and the reeling device 5 are in transmission connection through the photovoltaic substrate 6. Or the winding roller of the unwinding device 1, the conveying roller and the roller assembly of the deposition device 3, the roller shaft 21 of the film covering device 2 and the winding roller of the winding device 5 are connected in a chain or belt transmission manner. The unwinding device 1 releases the photovoltaic substrate 6, the photovoltaic substrate 6 is transmitted to the deposition device 3, a buffer layer is deposited in the main reaction zone 31, and the buffer layer is cleaned in the cleaning zone 32 and dried in the drying zone 33 and then transmitted to the film coating device 2; and after the photovoltaic substrate 6 deposited with the buffer layer is coated with the protective film at the coating device 2, the photovoltaic substrate is conveyed to a rolling device 5 for rolling. Wherein the transfer speed of the photovoltaic substrate may be set to 0.5m/Min to 5 m/Min.
To sum up, the embodiment of the utility model provides a pair of volume chemical water bath deposition system and tectorial membrane device 2 thereof, after 6 coiled material deposit buffer layers of photovoltaic basement, cover the protection film again on the sedimentary buffer layer, realize the protection to the buffer layer, prevent that 6 coiled materials of photovoltaic basement from having the back of unevenness and causing the buffer layer membrane face to cause the damage, guarantee the efficiency of battery and battery pack's yield.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. This is merely for convenience in describing the invention and to simplify the description and is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation and is therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A film covering device of a roll-to-roll chemical water bath deposition system is used for covering films on a photovoltaic substrate; it is characterized by comprising: the device comprises a roll shaft, a driving part, a deviation correcting mechanism and a bracket assembly; one end of the roll shaft is in transmission connection with the driving piece, and the other end of the roll shaft is supported by the support assembly; the roll shaft is provided with a film-coated base material, and the photovoltaic base passes through the deviation rectifying mechanism and is conveyed along the roll shaft.
2. The film covering device of the roll-to-roll chemical water bath deposition system according to claim 1, wherein the bracket assembly comprises: the roller shaft supporting device comprises a support, a lifting mechanism and a guide rail, wherein one end of the support is connected with the guide rail in a sliding mode, and the other end of the support is used for supporting the roller shaft; the support is in transmission connection with the lifting mechanism, and the lifting mechanism drives the support to lift.
3. The coating device of the roll-to-roll chemical water bath deposition system according to claim 1, wherein the coating substrate is one or more of polytetrafluoroethylene, polyethylene, polypropylene and polyethylene terephthalate.
4. A roll-to-roll chemical water bath deposition system is characterized by comprising an unreeling device, a deposition device, a reeling device and a film covering device of the roll-to-roll chemical water bath deposition system as claimed in any one of claims 1 to 3;
the unwinding device, the deposition device, the film covering device and the winding device are sequentially connected in a transmission manner; the photovoltaic substrate released by the unreeling device sequentially passes through the deposition device and the film laminating device and is reeled in the reeling device.
5. The roll-to-roll chemical water bath deposition system of claim 4, wherein the photovoltaic substrate is transported at a speed of 0.5m/Min to 5 m/Min.
6. The roll-to-roll chemical water bath deposition system according to claim 4, wherein the deposition device comprises a main reaction zone, a cleaning zone and a drying zone which are communicated in sequence.
7. The roll-to-roll chemical water bath deposition system according to claim 6, wherein the main reaction zone comprises a water bath reaction chamber, a plurality of transmission rollers are arranged in the water bath reaction chamber, and the unwinding device is in transmission connection with the film covering device through the transmission rollers.
8. The roll-to-roll chemical water bath deposition system according to claim 7, wherein a roller assembly in transmission connection with the transmission roller is arranged in the cleaning zone and the drying zone, the transmission roller is in transmission connection with the film covering device through the roller assembly, and the film covering device is in transmission connection with the unwinding device.
9. The roll-to-roll chemical water bath deposition system according to claim 6, wherein the deposition temperature of the main reaction zone is 60-80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920952367.1U CN210245522U (en) | 2019-06-21 | 2019-06-21 | Roll-to-roll chemical water bath deposition system and film covering device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920952367.1U CN210245522U (en) | 2019-06-21 | 2019-06-21 | Roll-to-roll chemical water bath deposition system and film covering device thereof |
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| Publication Number | Publication Date |
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| CN210245522U true CN210245522U (en) | 2020-04-03 |
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| CN201920952367.1U Active CN210245522U (en) | 2019-06-21 | 2019-06-21 | Roll-to-roll chemical water bath deposition system and film covering device thereof |
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Address after: 100076 6015, 6th floor, building 8, 9 Yingshun Road, Yinghai Town, Daxing District, Beijing Patentee after: Beijing Dingrong Photovoltaic Technology Co.,Ltd. Address before: 100176 Beijing Daxing District Beijing economic and Technological Development Zone Rongchang East Street 7 hospital 6 Building 3001 room. Patentee before: BEIJING APOLLO DING RONG SOLAR TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20210508 Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee after: Hongyi Technology Co.,Ltd. Address before: 100076 6015, 6th floor, building 8, 9 Yingshun Road, Yinghai Town, Daxing District, Beijing Patentee before: Beijing Dingrong Photovoltaic Technology Co.,Ltd. |
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