CN113611772A - Photovoltaic module production system and production method - Google Patents

Photovoltaic module production system and production method Download PDF

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Publication number
CN113611772A
CN113611772A CN202110734121.9A CN202110734121A CN113611772A CN 113611772 A CN113611772 A CN 113611772A CN 202110734121 A CN202110734121 A CN 202110734121A CN 113611772 A CN113611772 A CN 113611772A
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battery
station
feeding
conveying
photovoltaic module
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CN113611772B (en
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郭梦龙
李华
刘继宇
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Taizhou Longi Solar Technology Co Ltd
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Taizhou Longi Solar Technology Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • H01L31/1876—Particular processes or apparatus for batch treatment of the devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a photovoltaic assembly production system and a production method, relates to the technical field of photovoltaic assemblies, and aims to automatically move a no-load tray separated from a photovoltaic laminated piece to an initial section of a conveying line, improve the production efficiency and reduce the labor cost. The photovoltaic module production system includes: the automatic feeding device comprises a first conveying mechanism, a tray feeding mechanism, a plurality of feeding mechanisms, a second conveying mechanism and a third conveying mechanism. The first conveying mechanism is provided with a first end and a second end which are distributed along the feeding conveying direction. Tray feed mechanisms feed the trays to the first transport mechanism, each feed mechanism for forming a respective photovoltaic stack on the trays. The second transport mechanism has a first end and a second end corresponding to the first transport mechanism. The second transport mechanism is for transporting the empty pallet toward a first end of the second transport mechanism. The third transport mechanism is used for transporting the photovoltaic laminate to the laminating mechanism. The production method of the photovoltaic module applies the photovoltaic module production system.

Description

Photovoltaic module production system and production method
Technical Field
The invention relates to the technical field of photovoltaic modules, in particular to a photovoltaic module production system and a production method.
Background
In the prior art, a back contact solar cell module realizes conductive interconnection between back contact cells through a conductive back plate. The conductive back plate is formed by laminating a conductive metal foil layer, an insulating medium layer, an Ethylene-Vinyl Acetate Copolymer (EVA) layer and a back plate layer. The material of the conductive metal foil layer is generally copper foil or aluminum foil. The conductive metal foil needs to be subjected to patterning treatment to form an electrically isolated pattern, so that the conductive metal foil can be conveniently and respectively electrically connected with the anode and the cathode of the back contact solar cell, and the conductive material electrically connects the conductive metal foil with the back electrode of the back contact cell piece through the insulating medium layer.
In the preparation of the back contact solar cell module, the conductive back plate is generally required to be placed on a tray, and a transmission line transmits the conductive back plate through the tray, so that the back contact cell piece is laid on the conductive back plate, and the back electrode of the back contact cell piece is aligned with the conductive material point. And finally, laying a front EVA (ethylene vinyl acetate) layer or a POE (Polyolefin Elastomer; Chinese full name: ethylene-octene copolymer) layer and a glass cover plate on the back contact cell to form a photovoltaic laminated piece, separating the photovoltaic laminated piece from the tray, and laminating by a laminating mechanism.
However, in the prior art, the empty tray separated from the photovoltaic laminate needs to be manually removed from the conveying line, moved to the initial stage of the conveying line and re-loaded with the back plate, so that the production efficiency is low, the labor cost is high, and the production and popularization of the back contact solar cell module are severely restricted.
Disclosure of Invention
The invention aims to provide a photovoltaic module production system and a production method, which are used for automatically moving an empty tray separated from a photovoltaic laminated piece to the initial section of a conveying line, so that the production efficiency is improved, and the labor cost is reduced.
In a first aspect, the present invention provides a photovoltaic module production system for producing a back contact solar module. This photovoltaic module production system includes: the automatic feeding device comprises a first conveying mechanism, a tray feeding mechanism, a plurality of feeding mechanisms, a second conveying mechanism and a third conveying mechanism.
The first conveying mechanism is provided with a first end and a second end which are distributed along the feeding conveying direction, and a tray feeding station and a plurality of feeding stations which are sequentially arranged between the first end and the second end.
The tray feeding mechanism is arranged at a tray feeding station to feed the tray to the first conveying mechanism; the tray is used to carry the feedstock for a photovoltaic stack or a photovoltaic stack.
Each feeding mechanism is arranged at a corresponding feeding station and used for feeding raw materials of the photovoltaic laminated members at the corresponding feeding station to form the corresponding photovoltaic laminated members on the tray.
The second transport mechanism has a first end and a second end corresponding to the first transport mechanism. The second end of the second conveying mechanism is connected with the second end of the first conveying mechanism, and the conveying direction of the second conveying mechanism is different from the feeding conveying direction of the first conveying mechanism. The second transport mechanism is for transporting the empty pallet toward a first end of the second transport mechanism.
The third conveying mechanism is provided with a first end and a second end which are distributed along the conveying direction of the first conveying mechanism, and the first end of the third conveying mechanism is connected with the second end of the first conveying mechanism; the third transport mechanism is used for transporting the photovoltaic laminate to the laminating mechanism.
Under the condition of adopting above-mentioned technical scheme, when producing back of the body contact solar module, tray feed mechanism can be in tray material loading station department with tray material loading to first transport mechanism. The first conveying mechanism conveys the tray along a first end of the first conveying mechanism to a second end of the first conveying mechanism. When the trays are conveyed to the corresponding feeding stations by the first conveying mechanism, each feeding mechanism performs feeding operation of raw materials of the photovoltaic laminated members at the corresponding feeding station, and the corresponding photovoltaic laminated members are formed on the trays. After the photovoltaic laminated member and the tray are separated, the photovoltaic laminated member is conveyed to the third conveying mechanism by the first conveying mechanism and conveyed to the laminating mechanism by the third conveying mechanism for lamination. The empty tray separated from the photovoltaic stack is conveyed by the first conveyor mechanism to the second conveyor mechanism and by the second conveyor mechanism to a first end of the second conveyor mechanism. The second conveying mechanism is provided with a first end and a second end corresponding to the first conveying mechanism, and the conveying direction of the second conveying mechanism is different from the feeding conveying direction of the first conveying mechanism. Therefore, the second conveying mechanism conveys the unloaded tray to the first end of the first conveying mechanism, the number of workers for taking the unloaded tray from the first conveying mechanism is reduced, and the unloaded tray is conveyed to the first end of the first conveying mechanism, so that the production efficiency is improved, and the labor cost is reduced. In addition, based on the structure of the photovoltaic module production system provided by the invention, the automation of the back contact solar cell module can be improved, the production efficiency of the back contact solar cell module is improved, and the production cost is reduced.
In a possible implementation manner, the photovoltaic module production system further includes: and the conveying control mechanism is arranged among the first conveying mechanism, the second conveying mechanism and the third conveying mechanism. The second end of the first conveying mechanism and the second end of the second conveying mechanism can be selectively communicated and/or the second end of the first conveying mechanism and the first end of the third conveying mechanism can be selectively communicated through the conveying control mechanism.
In a possible implementation manner, the conveying control mechanism includes a first lifting mechanism, and one end of the first lifting mechanism is connected with the second end of the first conveying mechanism; the other end of the first lifting mechanism is connected with the second end of the second conveying mechanism; the first end of the third conveying mechanism is connected with the middle end of the first lifting mechanism.
In a possible implementation manner, the first end of the second conveying mechanism is connected with the first end of the first conveying mechanism, and the second conveying mechanism is used for conveying the tray to the first end of the first conveying mechanism.
Under the condition of adopting above-mentioned technical scheme, second transport mechanism's first end is connected with first transport mechanism's first end, and based on this, second transport mechanism can convey the empty-load tray of first transport mechanism's second end to first transport mechanism's first end, further reduces artifical transport tray, improves production efficiency, reduces the cost of labor.
In a possible implementation manner, the photovoltaic module production system further includes a second lifting mechanism, one end of the second lifting mechanism is connected with the first end of the first conveying mechanism, and the other end of the second lifting mechanism is connected with the first end of the second conveying mechanism.
In a possible implementation manner, the plurality of loading stations include a back plate loading station, a battery loading station, a first packaging material loading station, and a cover plate loading station, which are sequentially distributed from the tray loading station to the second end.
The multiple feeding mechanisms comprise a backboard feeding mechanism, a battery feeding mechanism, a first packaging material feeding mechanism and a cover plate feeding mechanism.
The backboard feeding mechanism is arranged at a backboard feeding station to feed the backboard onto the tray at the backboard feeding station. The battery feeding mechanism is arranged at a battery feeding station to feed back-contact battery pieces on the back plate at the battery feeding station. The first packaging material feeding mechanism is arranged at the first packaging material feeding station to stack the first packaging material on the back contact battery piece at the first packaging material feeding station. The cover plate feeding mechanism is arranged at a cover plate feeding station to stack the cover plate on the first packaging material at the cover plate feeding station to form the photovoltaic laminated member.
In a possible implementation manner, the photovoltaic module production system further includes a tray separating mechanism, and the tray separating mechanism is disposed between the plurality of feeding stations and the second end of the first conveying mechanism to separate the tray from the photovoltaic laminate.
In a possible implementation manner, the photovoltaic module production system further comprises a laminating mechanism arranged at the second end of the third conveying mechanism and used for carrying out a laminating operation on the photovoltaic laminated member.
In a possible implementation manner, the first conveying mechanism further has a second packaging material loading station located between the back plate loading station and the battery loading station.
The photovoltaic module production system further comprises a second packaging material feeding mechanism, and the second packaging material feeding mechanism is arranged at a second packaging material feeding station so as to feed the second packaging material on the back plate at the second packaging material feeding station.
In a possible implementation manner, the second packaging material has a plurality of openings thereon, and the openings correspond to the openings on the conductive backplane.
In one possible implementation, the battery feeding mechanism has at least one battery waiting station and at least one battery transferring station. Battery feed mechanism includes: at least one turnover mechanism and at least one typesetting mechanism.
Each turnover mechanism is arranged between the battery to-be-rotated station and the battery transferring station and used for turning the battery piece from the corresponding battery to-be-rotated station to the corresponding battery transferring station, and the back contact surface of the battery piece positioned at the battery transferring station faces the direction of the plane of the back plate.
The battery sheet conveying mechanism comprises a battery conveying station, a battery loading station and a first conveying mechanism, wherein the battery conveying station is used for conveying the battery sheets to the battery loading station, the battery loading station is used for loading the battery sheets, the battery conveying station is used for conveying the battery sheets to the battery loading station, and the battery sheet conveying mechanism is used for conveying the battery sheets to the battery loading station.
Under the condition of adopting the technical scheme, the turnover mechanism is used for turning the battery piece from the corresponding battery waiting-to-be-turned station to the corresponding battery transferring station. Generally, when the battery piece is conveyed by the conveying mechanism, the back contact surface of the battery piece is preferably upward, that is, away from the conveying surface of the conveying mechanism, so as to prevent the conductive material of the battery piece from being damaged after the conveying surface of the conveying mechanism is contacted with the back contact surface of the battery piece. When the back contact solar cell module is produced, the turnover mechanism firstly turns the transferred cell piece from the corresponding cell to-be-turned station to the cell transfer station, so that the back contact surface of the cell piece positioned at the cell transfer station faces the direction of the plane of the back plate, preferably the downward direction. And then, the vacuum adsorption device of the typesetting mechanism adsorbs the battery pieces, and the battery pieces are transferred to the corresponding typesetting positions of the back plate from the corresponding battery transfer stations under the drive of the moving device. Therefore, when the cell is mounted on the back plate, the typesetting is performed through the typesetting mechanism, so that the offset of the back contact cell and the back plate in contraposition can be reduced, the automation of the back contact solar cell module is realized, the production efficiency of the back contact solar cell module is improved, and the production cost is reduced.
In a possible implementation manner, the battery feeding mechanism further includes a first image collector, a second image collector, and a controller respectively communicating with the first image collector, the second image collector, and the layout mechanism. The first image collector is used for collecting the image of the back contact surface of the battery piece when the battery piece is positioned at the corresponding battery transferring station. The second image collector is used for collecting the typesetting images of the typesetting position of the backboard when the backboard is conveyed to the battery feeding station by the first conveying mechanism. The controller is used for controlling the typesetting mechanism to transfer the battery pieces to the corresponding typesetting positions of the back plate according to the images of the back contact surfaces of the battery pieces and the typesetting images.
Under the condition of adopting the technical scheme, the turnover mechanism is used for placing the battery piece at the battery transfer station, and the first image collector is used for collecting the image of the back contact surface of the battery piece when the battery piece is positioned at the corresponding battery transfer station. And the second image collector collects the typesetting images of the typesetting position of the backboard when the backboard is conveyed to the battery feeding station. The controller controls the typesetting mechanism to typeset the battery pieces at the corresponding typesetting positions of the back plate according to the images of the back contact surfaces of the battery pieces and the typesetting images. Based on this, after conveying battery piece and backplate, the controller is according to the image of battery piece back contact surface and the corresponding composing position of composing image control composing mechanism with the battery piece composing at the backplate, even battery piece and backplate also are not influenced taking place to squint in the transfer process, need not the position of accurate backplate and battery piece when the conveying, it is low to the device requirement of conveying battery piece and backplate, and make battery piece and backplate counterpoint accurate, greatly improved back contact solar module's yields, and have stronger adaptability and flexibility to production environment and production condition, be adapted to various subassembly types.
In a second aspect, the present invention further provides a method for producing a photovoltaic module, and a system for producing a photovoltaic module according to any one of the above-mentioned first aspect and possible implementation manners of the first aspect. The production method of the photovoltaic module comprises the following steps:
step S100: controlling a tray feeding mechanism to feed the tray to a first conveying mechanism at a tray feeding station;
step S200: controlling a corresponding feeding mechanism to perform feeding operation of raw materials of the photovoltaic laminated members at a corresponding feeding station, and forming the corresponding photovoltaic laminated members on the trays;
step S300: controlling a third transport mechanism to transport the photovoltaic laminate to a lamination mechanism;
step S400: and controlling the second conveying mechanism to convey the empty tray to the first end of the second conveying mechanism.
Compared with the prior art, the beneficial effects of the method for producing the photovoltaic module provided by the invention are the same as those of the photovoltaic module production system in any one of the possible implementation manners of the first aspect and the first aspect, and are not repeated herein.
In one possible implementation manner, when the photovoltaic module production system includes a transfer control mechanism, step S300 includes: and controlling the conveying control mechanism to communicate the second end of the first conveying mechanism with the first end of the third conveying mechanism, and conveying the photovoltaic laminated member to the laminating mechanism.
In one possible implementation manner, when the photovoltaic module production system includes a transfer control mechanism, step S400 includes: and the control conveying control mechanism is communicated with the second end of the first conveying mechanism and the second end of the second conveying mechanism to convey the unloaded tray to the first end of the second conveying mechanism.
In a possible implementation manner, when the photovoltaic module production system includes a backplane feeding mechanism, a battery feeding mechanism, a first packaging material feeding mechanism, and a cover feeding mechanism, the step S200 includes:
step S210: and controlling a backboard feeding mechanism to feed the backboard onto the tray at a backboard feeding station.
Step S220: and controlling a battery feeding mechanism to feed back contact battery pieces on the back plate at a battery feeding station.
Step S230: and controlling a first packaging material feeding mechanism to stack the first packaging material on the back contact battery piece at a first packaging material feeding station.
Step S240: and controlling a cover plate feeding mechanism to stack the cover plate on the first packaging material at a cover plate loading station to form the photovoltaic laminated member.
In a possible implementation manner, when the battery feeding mechanism includes at least one turnover mechanism and at least one typesetting mechanism, the step S220 includes:
step S221, controlling at least one turnover mechanism to contact with the back contact surface of the battery piece, and turning the battery piece from the corresponding battery to-be-turned station to the battery transfer station, so that the back contact surface of the battery piece positioned at the battery transfer station faces the direction of the plane of the back plate.
And step S222, controlling at least one typesetting mechanism to adsorb the front sides of the battery pieces through a vacuum adsorption device, and transferring the battery pieces from the corresponding battery transfer stations to the corresponding typesetting positions of the back plate through a moving device.
In a possible implementation manner, when the battery feeding mechanism includes a first image collector, a second image collector, and a controller, step S222 includes:
and step S222-1, controlling at least one first image collector to collect the image of the back contact surface of the battery piece on the corresponding battery transfer station, and sending the image of the back contact surface of the battery piece to the controller.
And controlling at least one second image collector to collect the typesetting image of the typesetting position of the backboard and sending the typesetting image to the controller.
In step S222-2, the controller controls the typesetting mechanism to transfer the battery pieces to the corresponding typesetting positions of the back plate according to the images of the back contact surfaces of the battery pieces and the typesetting images.
In one possible implementation manner, the step S222-2 includes:
step S222-21: comparing the image of the back contact surface of the battery piece with the reference battery piece image to determine the offset parameter of the battery piece; and comparing the typesetting image with the reference typesetting image, and determining the offset parameter of the typesetting position.
Step S222-22: and the controller determines the offset parameters of the battery pieces at the corresponding typesetting positions of the backboard according to the offset parameters of the battery pieces and the offset parameters of the typesetting positions.
Step S222-23: the controller controls the typesetting mechanism to transfer the battery pieces to the corresponding typesetting positions of the back plate according to the offset parameters.
In a possible implementation manner, when the photovoltaic module production system includes a tray separation mechanism, after step S200, the photovoltaic module production method further includes: and controlling the tray separation mechanism to separate the tray from the photovoltaic laminate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of a photovoltaic module production system according to an embodiment of the present invention;
fig. 2 is a schematic top view of a photovoltaic module production system according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a photovoltaic module production system according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a battery feeding mechanism according to an embodiment of the present invention;
fig. 5 is a schematic top view of a battery feeding mechanism according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of the turnover mechanism in the embodiment of the invention.
Reference numerals: the system comprises an A-battery piece, a B-backboard, 100-a first conveying mechanism, 110-a tray feeding station, 130-a battery feeding station, 140-a first packaging material feeding station, 150-a cover plate feeding station, 200-a tray feeding mechanism, 320-a battery feeding mechanism, 321-a battery waiting transferring station, 322-a battery transferring station, 323-a battery conveying line, 324-a turnover mechanism, 325-a typesetting mechanism, 326-a first image collector, 327-a second image collector, 330-a first packaging material feeding mechanism, 340-a cover plate feeding mechanism, 400-a second conveying mechanism, 500-a third conveying mechanism, 600-a tray separating mechanism, 700-a conveying control mechanism and 800-a second lifting mechanism.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
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 defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 illustrates a schematic perspective structure diagram of a photovoltaic module production system in an embodiment of the present invention, fig. 2 illustrates a schematic top-view structure diagram of the photovoltaic module production system in an embodiment of the present invention, and fig. 3 illustrates a schematic side-view structure diagram of the photovoltaic module production system in an embodiment of the present invention. As shown in fig. 1 to 3, an embodiment of the present invention provides a photovoltaic module production system, including: a first transfer mechanism 100, a tray feeding mechanism 200, various feeding mechanisms, a second transfer mechanism 400, and a third transfer mechanism 500.
As shown in fig. 1, the first transfer mechanism 100 has a first end and a second end distributed along the feeding transfer direction, and a tray feeding station 110 and a plurality of feeding stations located in sequence between the first end and the second end.
The tray feeding mechanism 200 is arranged at the tray feeding station 110 to feed the tray to the first conveying mechanism 100; the tray is used to carry the feedstock for a photovoltaic stack or a photovoltaic stack.
Each feeding mechanism is arranged at a corresponding feeding station and used for feeding raw materials of the photovoltaic laminated members at the corresponding feeding station to form the corresponding photovoltaic laminated members on the tray.
The second transfer mechanism 400 has a first end and a second end corresponding to the first transfer mechanism 100. Wherein, the second end of the second conveying mechanism 400 is connected with the second end of the first conveying mechanism 100, and the conveying direction of the second conveying mechanism 400 is different from the feeding conveying direction of the first conveying mechanism 100. The second transfer mechanism 400 is used to transfer the empty pallet toward a first end of the second transfer mechanism 400.
The third conveying mechanism 500 has a first end and a second end distributed along the conveying direction of the first conveying mechanism 100, and the first end of the third conveying mechanism 500 is connected with the second end of the first conveying mechanism 100; the third transport mechanism 500 is used to transport the photovoltaic stack to the lamination mechanism.
Compared with the prior art, as shown in fig. 1 to 3, when the back contact solar cell module is produced, the tray feeding mechanism 200 may feed the tray to the first conveying mechanism 100 at the tray feeding station 110. The first transfer mechanism 100 transfers the tray along a first end of the first transfer mechanism 100 to a second end of the first transfer mechanism 100. When the trays are conveyed to the respective loading stations by the first conveying mechanism 100, each of the loading mechanisms performs a loading operation of raw materials of the photovoltaic laminates at the respective loading stations, and the respective photovoltaic laminates are formed on the trays. After the photovoltaic laminate and the tray are separated, the photovoltaic laminate is conveyed to the third conveying mechanism 500 by the first conveying mechanism 100 and conveyed to the laminating mechanism for lamination by the third conveying mechanism 500. The empty tray separated from the photovoltaic stack is transferred by the first transfer mechanism 100 to the second transfer mechanism 400 and transferred by the second transfer mechanism 400 to a first end of the second transfer mechanism 400. Since the second transfer mechanism 400 has a first end and a second end corresponding to the first transfer mechanism 100, and the transfer direction of the second transfer mechanism 400 is different from the feeding transfer direction of the first transfer mechanism 100. Therefore, the second conveying mechanism 400 conveys the empty trays to the first end of the first conveying mechanism 100, so that the number of workers for taking the empty trays from the first conveying mechanism 100 is reduced, and the empty trays are conveyed to the first end of the first conveying mechanism 100, thereby improving the production efficiency and reducing the labor cost. In addition, based on the structure of the photovoltaic module production system provided by the invention, the automation of the back contact solar cell module can be improved, the production efficiency of the back contact solar cell module is improved, and the production cost is reduced.
As shown in fig. 1, both the first transfer mechanism 100 and the second transfer mechanism 400 may be linear transfer mechanisms. The linear conveyor mechanism may include, but is not limited to, a linear conveyor mechanism. The first conveying mechanism 100 may be formed by sequentially connecting a plurality of first sub-conveying mechanisms, each of which corresponds to a corresponding feeding mechanism. That is, each first sub-conveyance mechanism forms one loading station.
Specifically, as shown in fig. 1, the first conveying mechanism 100 and the second conveying mechanism 400 may be arranged in parallel, and the feeding conveying directions of the first conveying mechanism 100 and the second conveying mechanism 400 are opposite. At this time, the first end of the first transfer mechanism 100 and the first end of the second transfer mechanism 400 are located on the same side, and the second end of the first transfer mechanism 100 and the second end of the second transfer mechanism 400 are located on the same side.
In one example, as shown in fig. 1, after the plurality of feeding mechanisms form the corresponding photovoltaic stacks on the trays, the photovoltaic stacks are separated from the trays when being laminated, and at this time, the photovoltaic stacks can be manually removed from the trays and placed on the first conveying mechanism 100 for conveying, the second conveying mechanism 400 conveys the empty trays to the first end of the second conveying mechanism 400, and the third conveying mechanism 500 conveys the photovoltaic stacks to the laminating mechanism.
In another example, as shown in fig. 1, the photovoltaic module production system described above may further include a tray separation mechanism 600. A tray separation mechanism 600 is provided between the plurality of feeding stations and the second end of the first conveyor mechanism 100 to separate the trays from the photovoltaic stack.
Specifically, the tray separating mechanism can be a lifting type clamping device arranged above the first conveying mechanism, and the lower end of the lifting type clamping device is provided with two clamping arms which are oppositely arranged so as to clamp the photovoltaic laminated member. When the tray carrying the photovoltaic laminated member passes through the lower part of the lifting type clamping device, two clamping arms of the lifting type clamping device descend, and when the two clamping arms descend to two sides of the photovoltaic laminated member, the two clamping arms draw close to the photovoltaic laminated member, so that the whole photovoltaic laminated member is clamped. Then, the lifting type clamping device drives the two clamping arms and the photovoltaic laminated piece to ascend, so that the photovoltaic laminated piece is separated from the tray. And the first conveying mechanism continues to convey the tray, so that after the tray is moved out of the position below the lifting type clamping device, the lifting type clamping device drives the two clamping arms and the photovoltaic laminated piece to descend, and the photovoltaic laminated piece is placed on the first conveying mechanism again.
In one example, as shown in fig. 1, the photovoltaic module production system further includes a laminating mechanism disposed at a second end of the third conveyor 500 for performing a laminating operation on the photovoltaic laminate. The third transport mechanism 500 transports the photovoltaic stack from the first end of the third transport mechanism 500 to the second end of the third transport mechanism 500 such that the photovoltaic stack arrives at the lamination mechanism for lamination.
In a possible implementation manner, the first conveying mechanism may further include a plurality of stacks thereon for buffering the corresponding photovoltaic stacks or the corresponding materials. Specifically, a stack may be disposed beside the feeding mechanism at each feeding station, or a stack may be disposed beside a feeding station that consumes a relatively long time. All stacks may be located on one side of the feed mechanism in the feed conveyance direction of the first conveyance mechanism. The first conveying mechanism is communicated with the corresponding stacks, continuous operation can be achieved through the stacks, the situation that the feeding mechanism is idle is avoided, and the productivity of the photovoltaic module production system is improved.
As a possible implementation manner, as shown in fig. 1, the photovoltaic module production system may further include: the transfer control mechanism 700 is provided between the first transfer mechanism 100 and the second transfer mechanism 400 and the third transfer mechanism 500. The second end of the first transfer mechanism 100 may be selectively communicated with the second end of the second transfer mechanism 400 and/or the second end of the first transfer mechanism 100 may be selectively communicated with the first end of the third transfer mechanism 500 by the transfer control mechanism 700.
In an alternative, as shown in fig. 1, the transfer control mechanism 700 may include a first lift mechanism. One end of the first lifting mechanism is connected to the second end of the first transfer mechanism 100, the other end of the first lifting mechanism is connected to the second end of the second transfer mechanism 400, and the first end of the third transfer mechanism 500 is connected to the middle end of the first lifting mechanism. As a result, the first lifting mechanism can connect the first transfer mechanism 100, the second transfer mechanism 400, and the third transfer mechanism 500.
In one example, the above-mentioned transport control mechanism further includes a sensor device and a transport controller, the sensor and the first elevating mechanism being in communication with the transport controller, respectively. A sensor device is used to detect whether the photovoltaic stack or the tray is being conveyed onto the first lifting mechanism.
Specifically, the first lifting mechanism may include a supporting plate and a supporting frame slidably connected to the supporting plate. The bearing plate is used for bearing the photovoltaic laminated member or the tray. During the operation of the first lifting mechanism, the tray can move up and down along the supporting frame, and the transmission controller can control the stroke of the bearing plate on the supporting frame according to the data of the sensor device.
It should be appreciated that the thickness of the empty tray and the photovoltaic stack are not uniform. Therefore, in the practical application process, the thickness judgment acquired by the sensor device is that the photovoltaic stack or the empty tray is conveyed to the first lifting mechanism. Based on this, the height of the carrier plate moving along the support frame can be consistent with the height of the first transmission mechanism, the second transmission mechanism or the third transmission mechanism respectively.
As a possible implementation manner, as shown in fig. 1, the first end of the second conveying mechanism 400 may be connected to the first end of the first conveying mechanism 100, and the second conveying mechanism 400 is used for conveying the tray to the first end of the first conveying mechanism 100.
As shown in fig. 1, the first end of the second conveying mechanism 400 is connected to the first end of the first conveying mechanism 100, and based on this, the second conveying mechanism 400 can convey the empty tray at the second end of the first conveying mechanism 100 to the first end of the first conveying mechanism 100, so as to further reduce the manual handling of the tray, improve the production efficiency, and reduce the labor cost.
In an alternative manner, as shown in fig. 1, the photovoltaic module production system further includes a second lifting mechanism 800, one end of the second lifting mechanism 800 is connected to the first end of the first conveying mechanism 100, and the other end of the second lifting mechanism 800 is connected to the first end of the second conveying mechanism 400.
As a possible implementation manner, as shown in fig. 1, the plurality of loading stations may include a back plate loading station, a battery loading station 130, a first packaging material loading station 140, and a cover plate loading station 150, which are sequentially distributed from the tray loading station 110 to the second end. The various feed mechanisms include a backplane feed mechanism, a battery feed mechanism 320, a first packaging material feed mechanism 330, and a lid feed mechanism 340.
As shown in fig. 1, the back plate feeding mechanism is disposed at the back plate feeding station to feed the back plate onto the tray at the back plate feeding station. The back plate can be a conductive back plate with a preset conductive circuit so as to be electrically connected with the battery pieces stacked on the conductive back plate.
As shown in fig. 1, a battery loading mechanism 320 is provided at the battery loading station 130 to load back-contact battery sheets on the back plate at the battery loading station 130. In practical application, the back contact battery piece may include: IBC (International Wrap-back contact) solar cell or MWT (Metal Wrap Through) solar cell.
As shown in fig. 1, a first encapsulant feeding mechanism 330 is provided at the first encapsulant feeding station 140 to stack the first encapsulant on the back contact cell at the first encapsulant feeding station 140. The encapsulating material may include: one or more of epoxy resin, acrylic resin, polyurethane, cyanoacrylate, Polyvinyl alcohol, polydimethylsiloxane, ethylene-vinyl acetate copolymer (EVA for short), ethylene-octene copolymer (POE for short), Polyvinyl Butyral (PVB for short) or silicone.
As shown in fig. 1, a cover plate feeding mechanism 340 is provided at the cover plate loading station 150 to stack the cover plate on the first encapsulant material at the cover plate loading station 150 to form the photovoltaic stack. The cover plate may be made of Polyethylene Terephthalate (PET), Polyethylene (PE), olefin resin, resin film such as fluorine-containing resin or silicone-containing resin, or light-transmitting plate-shaped resin member such as glass, polycarbonate, or acrylic resin.
As a possible implementation manner, the first conveying mechanism may further include a second packaging material loading station located between the back plate loading station and the battery loading station. The photovoltaic module production system further comprises a second packaging material feeding mechanism, and the second packaging material feeding mechanism is arranged at a second packaging material feeding station so as to feed the second packaging material on the back plate at the second packaging material feeding station. The second packaging material may include one or more of epoxy resin, acrylic resin, polyurethane, cyanoacrylate, Polyvinyl alcohol, polydimethylsiloxane, ethylene-vinyl acetate copolymer (EVA), ethylene-octene copolymer (POE), Polyvinyl Butyral (PVB), and silicone. The second packaging material is placed between the back plate and the battery piece.
In an alternative, the second packaging material may have a plurality of openings thereon, and the openings correspond to the openings on the conductive backplane.
As a possible implementation manner, fig. 4 illustrates a schematic perspective structure diagram of a battery loading mechanism in an embodiment of the present invention. Fig. 5 illustrates a schematic top view of the battery loading mechanism in the embodiment of the present invention. As shown in fig. 4 and 5, the battery loading mechanism 320 may have at least one battery waiting position 321 and at least one battery transferring position 322.
In practical applications, as shown in fig. 4, the battery feeding mechanism 320 includes a battery conveying line 323 for conveying a plurality of back-contact battery pieces a, at least one battery waiting position 321 is located on the battery conveying line 323, and specifically, the battery conveying line 323 may be a conveyor belt. The battery piece a is placed on the conveyor belt and conveyed to the battery waiting position 321 by the conveyor belt. Since the plurality of conductive contacts are already printed on the back contact surface of the battery piece a when the battery piece a is transferred by the battery transfer line 323, the back contact surface of the battery piece a transferred by the battery transfer line 323 is separated from the transfer surface of the battery transfer line 323. Specifically, the battery piece a is placed on the conveying surface of the battery conveying line 323, and the back contact surface of the battery piece a is away from the conveying surface of the battery conveying line 323. In practical application, the back contact surface of the battery piece A faces upwards.
The battery feeding mechanism comprises at least one turnover mechanism and at least one typesetting mechanism. Fig. 6 illustrates a schematic structural view of the turnover mechanism in the embodiment of the present invention. As shown in fig. 6, each turnover mechanism 324 is disposed between the battery waiting-to-be-transferred station 321 and the battery transferring station 322, and is used for turning over the battery piece a from the corresponding battery waiting-to-be-transferred station 321 to the corresponding battery transferring station 322, and the back contact surface of the battery piece a located at the battery transferring station 322 faces the direction of the plane where the back plate B is located.
As shown in fig. 4, the typesetting mechanisms 325 are disposed between the battery transfer station 322 and the battery loading station 130, each typesetting mechanism 325 includes a moving device and a vacuum adsorption device located at one end of the moving device, the vacuum adsorption device is used for adsorbing the battery piece a, the moving device is used for transferring the battery piece a from the corresponding battery transfer station 322 to the corresponding typesetting position of the back plate B when the battery piece a is located at the battery transfer station 322 and the back plate B is transferred to the battery loading station 130 by the first transfer mechanism 100.
As shown in fig. 4, the number of the turnover mechanism 324 and the typesetting mechanism 325 can be set as desired. The battery feeding mechanism 320 may be provided with one turnover mechanism 324 and one typesetting mechanism 325, or may be provided with a plurality of turnover mechanisms. The number of the turning mechanisms 324 and the number of the typesetting mechanisms 325 may or may not be one-to-one, which is not limited.
In practical applications, as shown in fig. 4, the back plate B is transported to the battery loading station 130 by the first transporting mechanism 100, and when the battery loading mechanism 320 loads the battery loading station 130, the battery transporting line 323 supplies the battery piece a to the battery waiting station 321. The turnover mechanism 324 turns over the battery piece a from the corresponding battery waiting-to-be-turned station 321 to the battery transfer station 322, and the back contact surface of the battery piece a located at the battery transfer station 322 faces downward. The vacuum adsorption device of the typesetting mechanism 325 adsorbs the battery piece a, and the battery piece a is transferred from the corresponding battery transfer station 322 to the corresponding typesetting position of the backboard B under the driving of the moving device.
As shown in fig. 4 and 5, the turnover mechanism 324 is used for turning the battery piece a from the corresponding battery waiting position 321 to the corresponding battery transfer position 322. Generally, when the battery piece a is conveyed by the conveying mechanism, the back contact surface of the battery piece a can be selected to face upward, that is, to face away from the conveying surface of the conveying mechanism, so as to avoid that the conductive material of the battery piece a is damaged after the conveying surface of the conveying mechanism is contacted with the back contact surface of the battery piece a, which results in poor performance or rework of the battery piece a and influences the production efficiency. When the battery feeding mechanism 320 feeds the battery feeding station 130, the turning mechanism 324 turns the battery sheet a from the corresponding battery transferring station 321 to the battery transferring station 322, so that the back contact surface of the battery sheet a located at the battery transferring station 322 faces the plane of the back panel B. Then, the vacuum adsorption device of the typesetting mechanism 325 adsorbs the battery piece a, and the battery piece a is transferred from the corresponding battery transfer station 322 to the corresponding typesetting position of the backboard B under the driving of the moving device. Therefore, when the cell piece A is installed on the backboard B, the typesetting is firstly carried out through the typesetting mechanism 325, so that the offset of the back contact cell piece A and the backboard B in the alignment can be reduced, the automation of the back contact solar cell module is realized, the production efficiency of the back contact solar cell module is improved, and the production cost is reduced.
In an alternative manner, as shown in fig. 4 to fig. 6, the battery feeding mechanism 320 may further include a first image collector 326, a second image collector 327, and a controller respectively communicating with the first image collector 326, the second image collector 327, and the typesetting mechanism 325.
As shown in fig. 4, the first image collector 326 is used for collecting the image of the back contact surface of the cell a when the cell a is located at the corresponding cell transfer station 322. The first image collector 326 may be an industrial camera, but is not limited thereto. The second image collector 327 is used for collecting the layout image of the layout position of the backboard B when the backboard B is located at the battery loading station 130. The second image collector 327 may be an industrial camera, but is not limited thereto. The controller is used for controlling the typesetting mechanism 325 to transfer the battery piece A to the corresponding typesetting position of the backboard B according to the image and the typesetting image of the back contact surface of the battery piece A.
Specifically, as shown in fig. 4,. When the battery feeding mechanism 320 feeds the battery feeding station 130, the turnover mechanism 324 turns the battery piece a over the battery transfer station 322, so that after the back contact surface of the battery piece a faces downward, the first image collector 326 is controlled to collect the image of the back contact surface of the battery piece a on the corresponding battery transfer station 322, and the image of the back contact surface of the battery piece a is sent to the controller; controlling the second image collector 327 to collect the typesetting image of the backboard B and send the typesetting image of the backboard B to the controller; the controller controls the typesetting mechanism 325 to typeset the battery piece A at the corresponding typesetting position of the backboard B according to the image of the back contact surface of the battery piece A and the typesetting image of the backboard B.
As shown in fig. 4, after the turnover mechanism 324 places the battery piece a at the battery transfer station 322, the first image collector 326 collects an image of the back contact surface of the battery piece a when the battery piece a is located at the corresponding battery transfer station 322. The second image collector 327 collects the layout images of the layout position of the backboard B when the backboard B is located at the battery loading station 130. The controller controls the typesetting mechanism 325 to typeset the battery piece A at the corresponding typesetting position of the backboard B according to the image of the back contact surface of the battery piece A and the typesetting image. Based on this, after conveying battery piece A and backplate B, the controller controls the typesetting mechanism 325 to typeset the battery piece A at the corresponding typesetting position of backplate B according to the image of the back contact surface of the battery piece A and the typesetting image of the typesetting position, even if the battery piece A and backplate B shift in the conveying process, the position of the backplate B and the battery piece A is not affected, the requirement on the device for conveying the battery piece A and the backplate B is low, and the battery piece A and the backplate B are aligned accurately, the yield of the back contact solar battery assembly is greatly improved, and the back contact solar battery assembly has strong adaptability and flexibility to the production environment and the production condition, and is suitable for various assembly types.
The embodiment of the invention also provides a production method of the photovoltaic module, and the photovoltaic module production system provided by the technical scheme is applied. The production method of the photovoltaic module comprises the following steps:
step S100: controlling a tray feeding mechanism to feed the tray to a first conveying mechanism at a tray feeding station;
step S200: controlling a corresponding feeding mechanism to perform feeding operation of raw materials of the photovoltaic laminated members at a corresponding feeding station, and forming the corresponding photovoltaic laminated members on the trays;
step S300: controlling a third transport mechanism to transport the photovoltaic laminate to a lamination mechanism;
step S400: and controlling the second conveying mechanism to convey the empty tray to the first end of the second conveying mechanism.
It should be noted that step S300 and step S400 are not in sequence, and may be performed simultaneously.
As a possible implementation manner, when the photovoltaic module production system includes a transfer control mechanism, step S300 may include: and controlling the conveying control mechanism to communicate the second end of the first conveying mechanism with the first end of the third conveying mechanism, and conveying the photovoltaic laminated member to the laminating mechanism.
As a possible implementation manner, when the photovoltaic module production system includes a transfer control mechanism, step S400 may include: and the control conveying control mechanism is communicated with the second end of the first conveying mechanism and the second end of the second conveying mechanism to convey the unloaded tray to the first end of the second conveying mechanism.
As a possible implementation manner, when the photovoltaic module production system includes a backplane feeding mechanism, a battery feeding mechanism, a first encapsulating material feeding mechanism, and a cover feeding mechanism, the step S200 may include:
step S210: controlling a backboard feeding mechanism to feed the backboard onto the tray at a backboard feeding station;
step S220: controlling a battery feeding mechanism to feed back contact battery pieces on a back plate at a battery feeding station;
step S230: controlling a first packaging material feeding mechanism to stack the first packaging material on the back contact battery piece at a first packaging material feeding station;
step S240: and controlling a cover plate feeding mechanism to stack the cover plate on the first packaging material at a cover plate loading station to form the photovoltaic laminated member.
As a possible implementation manner, when the battery feeding mechanism includes at least one turnover mechanism and at least one typesetting mechanism, the step S220 may include:
step S221, controlling at least one turnover mechanism to contact with the back contact surface of the battery piece, and turning the battery piece from the corresponding battery to-be-turned station to the battery transfer station, so that the back contact surface of the battery piece positioned at the battery transfer station faces the direction of the plane of the back plate.
And step S222, controlling at least one typesetting mechanism to adsorb the front sides of the battery pieces through a vacuum adsorption device, and transferring the battery pieces from the corresponding battery transfer stations to the corresponding typesetting positions of the back plate through a moving device.
As a possible implementation manner, when the battery feeding mechanism includes a first image collector, a second image collector, and a controller, step S222 may include:
and step S222-1, controlling at least one first image collector to collect the image of the back contact surface of the battery piece on the corresponding battery transfer station, and sending the image of the back contact surface of the battery piece to the controller.
And controlling at least one second image collector to collect the typesetting image of the typesetting position of the backboard and sending the typesetting image to the controller.
In step S222-2, the controller controls the typesetting mechanism to transfer the battery pieces to the corresponding typesetting positions of the back plate according to the images of the back contact surfaces of the battery pieces and the typesetting images.
It should be noted that, in step S222-1, "at least one first image collector is controlled to collect the image of the back contact surface of the battery piece at the corresponding battery transfer station, and the image of the back contact surface of the battery piece is sent to the controller. And controlling at least one second image collector to collect the typesetting images of the typesetting positions of the back plates and sending the typesetting images to the controller. "not in sequence, but also simultaneously.
In an alternative manner, the step S222-2 may include:
step S222-21: comparing the image of the back contact surface of the battery piece with the reference battery piece image to determine the offset parameter of the battery piece; and comparing the typesetting image with the reference typesetting image, and determining the offset parameter of the typesetting position.
Step S222-22: and the controller determines the offset parameters of the battery pieces at the corresponding typesetting positions of the backboard according to the offset parameters of the battery pieces and the offset parameters of the typesetting positions.
Step S222-23: the controller controls the typesetting mechanism to transfer the battery pieces to the corresponding typesetting positions of the back plate according to the offset parameters.
It should be noted that, in step S222-21, "compare the image of the back contact surface of the cell with the reference cell image to determine the offset parameter of the cell" and "compare the layout image with the reference layout image to determine the offset parameter of the layout position" may be performed in a non-sequential order or simultaneously.
In practical application, the typesetting logic can be set up first, and each typesetting mechanism typesets each cell piece at the corresponding typesetting position in sequence. Thus, each cell has theoretical coordinates on the back plate.
After the battery pieces are transferred and turned over, the positions of the battery pieces may be shifted from the preset positions. After the backboard is conveyed, the typesetting position on the backboard can also deviate from the preset position.
Therefore, the reference cell image may be preset. For example, the shooting angle of the first image collector is fixed every time the first image collector collects an image, so that an image with a non-offset battery slice is used as a reference battery slice image. After the actual image of the back contact surface of the battery piece is collected, if the battery piece deviates in the transferring and overturning processes, the position of the battery piece at the battery transferring station is different from the preset position, the image of the back contact surface of the battery piece can be compared with the reference battery piece image, and the deviation parameter of the battery piece is determined. If the battery piece is not deviated, the deviation parameter is 0.
The reference layout image may also be preset. For example, the shooting angle at each time the second image collector collects the images is made fixed, so that the images whose layout positions of the back plates are not shifted are taken as reference layout images. After the typesetting image at the actual typesetting position is collected, if the backboard shifts in the transmission process, the typesetting position is different from the preset position, and the shift parameter of the typesetting position can be determined by comparing the typesetting image with the reference typesetting image. If the typesetting position is not shifted, the shift parameter is 0.
And finally, determining the offset parameters of the battery pieces at the corresponding typesetting positions of the back plate according to the offset parameters of the battery pieces and the offset parameters of the typesetting positions, so as to adjust the theoretical coordinates of the battery pieces on the back plate, obtain the actual coordinates of the battery pieces on the back plate, and accurately align the battery pieces with the typesetting positions.
As a possible implementation manner, when the photovoltaic module production system includes the tray separation mechanism, after step S200, the photovoltaic module production method further includes: and controlling the tray separation mechanism to separate the tray from the photovoltaic laminate.
In one example, the respective feeding mechanisms are controlled to perform feeding operation of raw materials of the photovoltaic stacks at the respective feeding stations, and after the respective photovoltaic stacks are formed on the trays, the tray separating mechanism is controlled to separate the trays from the photovoltaic stacks, so that the empty trays and the photovoltaic stacks are distributed on the first conveying mechanism at intervals. And then controlling the conveying control mechanism to communicate the second end of the first conveying mechanism with the first end of the third conveying mechanism, and conveying the photovoltaic laminated member to the laminating mechanism. And finally, controlling the conveying control mechanism to communicate the second end of the first conveying mechanism with the second end of the second conveying mechanism, and conveying the unloaded tray to the first end of the second conveying mechanism.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (19)

1. A photovoltaic module production system is used for producing a back contact solar cell module; characterized in that, photovoltaic module production system includes:
the first conveying mechanism is provided with a first end and a second end which are distributed along the feeding conveying direction, and a tray feeding station and a plurality of feeding stations which are sequentially arranged between the first end and the second end;
the tray feeding mechanism is arranged at the tray feeding station to feed the tray to the first conveying mechanism; the tray is used for bearing raw materials of the photovoltaic laminated piece or the photovoltaic laminated piece;
a plurality of feeding mechanisms, wherein each feeding mechanism is arranged at a corresponding feeding station and is used for feeding raw materials of photovoltaic laminates at the corresponding feeding station to form the corresponding photovoltaic laminates on the tray;
the second conveying mechanism is provided with a first end and a second end which correspond to the first conveying mechanism, wherein the second end of the second conveying mechanism is connected with the second end of the first conveying mechanism, and the conveying direction of the second conveying mechanism is different from the feeding conveying direction of the first conveying mechanism; the second conveying mechanism is used for conveying the empty tray to the first end of the second conveying mechanism;
the third conveying mechanism is provided with a first end and a second end which are distributed along the conveying direction of the first conveying mechanism, and the first end of the third conveying mechanism is connected with the second end of the first conveying mechanism; the third transport mechanism is configured to transport the photovoltaic stack to a lamination mechanism.
2. The photovoltaic module production system according to claim 1, further comprising: a transfer control mechanism disposed between the first transfer mechanism and the second and third transfer mechanisms; the second end of the first conveying mechanism and the second end of the second conveying mechanism can be selectively communicated and/or the second end of the first conveying mechanism and the first end of the third conveying mechanism can be selectively communicated through the conveying control mechanism.
3. The photovoltaic module production system of claim 2, wherein the transport control mechanism comprises a first lift mechanism, one end of the first lift mechanism being connected to a second end of the first transport mechanism; the other end of the first lifting mechanism is connected with the second end of the second conveying mechanism; and the first end of the third conveying mechanism is connected with the middle end of the first lifting mechanism.
4. The photovoltaic module production system of claim 1, wherein the first end of the second conveyor mechanism is coupled to the first end of the first conveyor mechanism, the second conveyor mechanism being configured to convey the tray to the first end of the first conveyor mechanism.
5. The photovoltaic module production system of claim 4, further comprising a second lift mechanism, one end of the second lift mechanism being connected to the first end of the first transport mechanism, the other end of the second lift mechanism being connected to the first end of the second transport mechanism.
6. The photovoltaic module production system according to any one of claims 1 to 5, wherein the plurality of loading stations comprise a back plate loading station, a battery loading station, a first packaging material loading station and a cover plate loading station which are sequentially distributed from the tray loading station to the second end;
the multiple feed mechanisms include:
the backboard feeding mechanism is arranged at the backboard feeding station so as to feed the backboard onto the tray at the backboard feeding station;
a battery loading mechanism disposed at the battery loading station to load back-contact battery pieces on the backplane at the battery loading station;
the first packaging material feeding mechanism is arranged at a first packaging material feeding station so as to stack the first packaging material on the back contact battery piece at the first packaging material feeding station;
and the cover plate feeding mechanism is arranged at the cover plate feeding station so as to stack the cover plate on the first packaging material at the cover plate feeding station to form the photovoltaic laminated member.
7. The photovoltaic module production system of any one of claims 1 to 5, further comprising a tray separation mechanism disposed between the plurality of feeding stations and the second end of the first conveyor mechanism to separate the tray from the photovoltaic stack; and/or the presence of a gas in the gas,
the photovoltaic module production system further comprises a laminating mechanism arranged at the second end of the third conveying mechanism and used for carrying out laminating operation on the photovoltaic laminated member.
8. The photovoltaic module production system of claim 6, wherein the first transport mechanism further has a second encapsulant loading station located between the backsheet loading station and the cell loading station;
the photovoltaic module production system further comprises a second packaging material feeding mechanism, and the second packaging material feeding mechanism is arranged at the second packaging material feeding station so as to feed the second packaging material onto the back plate at the second packaging material feeding station.
9. The photovoltaic module production system of claim 8, wherein the second encapsulant material has a plurality of openings therein corresponding to the openings in the conductive backsheet.
10. The photovoltaic module production system of claim 6, wherein the cell feed mechanism has at least one cell preparation station and at least one cell transfer station; the battery feed mechanism includes:
each turnover mechanism is arranged between the battery to-be-transferred station and the battery transferring station and used for turning a battery piece from the corresponding battery to-be-transferred station to the corresponding battery transferring station, and the back contact surface of the battery piece positioned at the battery transferring station faces the direction of the plane where the back plate is positioned;
and at least one composing mechanism, set up in the battery pass on the station with between the battery material loading station, every composing mechanism includes the mobile device and is located the vacuum adsorption device of the one end of mobile device, the vacuum adsorption device is used for adsorbing the battery piece, the mobile device is used for the battery piece is located the battery passes on the station, the backplate is conveyed by first transport mechanism during the battery material loading station, will the battery piece is from corresponding the battery passes on the station and transports the corresponding composing position of backplate.
11. The photovoltaic module production system of claim 10, wherein the cell feed mechanism further comprises:
the first image collector is used for collecting the image of the back contact surface of the battery piece when the battery piece is positioned at the corresponding battery transferring station;
the second image collector is used for collecting typesetting images of the typesetting position of the backboard when the backboard is conveyed to the battery loading station by the first conveying mechanism;
and the controller is respectively communicated with the first image collector, the second image collector and the typesetting mechanism and is used for controlling the typesetting mechanism to transfer the battery piece to the corresponding typesetting position of the back plate according to the image of the back contact surface of the battery piece and the typesetting image.
12. A method for producing a photovoltaic module using the photovoltaic module production system according to any one of claims 1 to 11, the method comprising:
step S100: controlling the tray feeding mechanism to feed the tray to the first conveying mechanism at the tray feeding station;
step S200: controlling the corresponding feeding mechanisms to perform feeding operation of raw materials of the photovoltaic laminates at the corresponding feeding stations, and forming the corresponding photovoltaic laminates on the trays;
step S300: controlling the third transport mechanism to transport the photovoltaic stack to a lamination mechanism;
step S400: and controlling the second conveying mechanism to convey the empty tray to the first end of the second conveying mechanism.
13. The method for producing a photovoltaic module according to claim 12, wherein when the photovoltaic module production system is the photovoltaic module production system according to claim 2, the step S300 includes:
and controlling the conveying control mechanism to communicate the second end of the first conveying mechanism with the first end of the third conveying mechanism to convey the photovoltaic laminated member to the laminating mechanism.
14. The method for producing a photovoltaic module according to claim 12, wherein when the photovoltaic module production system is the photovoltaic module production system according to claim 2, the step S400 includes:
and controlling the conveying control mechanism to communicate the second end of the first conveying mechanism with the second end of the second conveying mechanism, and conveying the unloaded tray to the first end of the second conveying mechanism.
15. The method for producing a photovoltaic module according to claim 12, wherein when the photovoltaic module production system is the photovoltaic module production system according to claim 6, the step S200 includes:
step S210: controlling the back plate feeding mechanism to feed the back plates onto the tray at the back plate feeding station;
step S220: controlling the battery loading mechanism to load back-contact battery pieces on the back plate at the battery loading station;
step S230: controlling the first packaging material feeding mechanism to stack a first packaging material on the back contact battery piece at the first packaging material feeding station;
step S240: and controlling the cover plate feeding mechanism to stack the cover plate on the first packaging material at the cover plate feeding station to form the photovoltaic laminated member.
16. The method for producing a photovoltaic module according to claim 15, wherein when the photovoltaic module production system is the photovoltaic module production system according to claim 10, the step S220 includes:
step S221, controlling at least one turnover mechanism to contact with the back contact surface of the battery piece, and turning the battery piece from the corresponding battery to-be-turned station to the battery transfer station, so that the back contact surface of the battery piece located at the battery transfer station faces the direction of the plane where the back plate is located;
step S222, controlling at least one typesetting mechanism to adsorb the front of the battery piece through the vacuum adsorption device, and transferring the battery piece to the corresponding typesetting position of the back plate from the corresponding battery transferring station through the mobile device.
17. The method for producing a photovoltaic module according to claim 16, wherein when the photovoltaic module production system is the photovoltaic module production system according to claim 11, the step S222 includes:
step S222-1, controlling at least one first image collector to collect images of the back contact surface of the battery piece on the corresponding battery transfer station, and sending the images of the back contact surface of the battery piece to the controller;
controlling at least one second image collector to collect the typesetting images of the typesetting position of the backboard and sending the typesetting images to the controller;
step S222-2, the controller controls the typesetting mechanism to transfer the battery pieces to the corresponding typesetting positions of the backboard according to the images of the back contact surfaces of the battery pieces and the typesetting images.
18. The method for producing a photovoltaic module according to claim 17, wherein the step S222-2 includes:
step S222-21: comparing the image of the back contact surface of the battery piece with a reference battery piece image to determine the offset parameter of the battery piece;
comparing the typesetting image with a reference typesetting image, and determining the offset parameter of the typesetting position;
step S222-22: the controller determines the offset parameters of the battery pieces at the corresponding typesetting positions of the backboard according to the offset parameters of the battery pieces and the offset parameters of the typesetting positions;
step S222-23: the controller controls the typesetting mechanism to transfer the battery pieces to the corresponding typesetting positions of the back plate according to the deviation parameters.
19. The method for producing a photovoltaic module according to any one of claims 12 to 18, wherein when the photovoltaic module production system is the photovoltaic module production system according to claim 7, after the step S200, the method for producing a photovoltaic module further comprises:
controlling the tray separation mechanism to separate the tray from the photovoltaic stack.
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CN202307989U (en) * 2011-08-25 2012-07-04 无锡尚德太阳能电力有限公司 Laminated material feeding device and solar cell assembly preparation system comprising same
CN105438841A (en) * 2015-12-26 2016-03-30 中国电子科技集团公司第十三研究所 Universal type automatic loading and unloading system of bottom tool separation method based on conveyor belt
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CN208938987U (en) * 2018-09-21 2019-06-04 米亚索乐装备集成（福建）有限公司 A kind of system of processing of solar cell module
CN111029286A (en) * 2019-11-20 2020-04-17 苏州迈正科技有限公司 Transmission device and solar cell production system
CN210527872U (en) * 2019-09-27 2020-05-15 宜春市骏智机电科技有限公司 Feeding mechanism

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Publication number Priority date Publication date Assignee Title
CN202307989U (en) * 2011-08-25 2012-07-04 无锡尚德太阳能电力有限公司 Laminated material feeding device and solar cell assembly preparation system comprising same
CN105438841A (en) * 2015-12-26 2016-03-30 中国电子科技集团公司第十三研究所 Universal type automatic loading and unloading system of bottom tool separation method based on conveyor belt
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