WO2023165472A1 - 一种光伏组件及条码打码机构 - Google Patents

一种光伏组件及条码打码机构 Download PDF

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Publication number
WO2023165472A1
WO2023165472A1 PCT/CN2023/078745 CN2023078745W WO2023165472A1 WO 2023165472 A1 WO2023165472 A1 WO 2023165472A1 CN 2023078745 W CN2023078745 W CN 2023078745W WO 2023165472 A1 WO2023165472 A1 WO 2023165472A1
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WO
WIPO (PCT)
Prior art keywords
glass cover
layer
barcode
target
photovoltaic module
Prior art date
Application number
PCT/CN2023/078745
Other languages
English (en)
French (fr)
Inventor
金鑫
薛坤伦
岑良军
沈相健
黄源
方浩智
张伟
危庆丰
祝一乐
胡毅
苏雄
Original Assignee
浙江隆基乐叶光伏科技有限公司
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Application filed by 浙江隆基乐叶光伏科技有限公司 filed Critical 浙江隆基乐叶光伏科技有限公司
Publication of WO2023165472A1 publication Critical patent/WO2023165472A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/359—Working by laser beam, e.g. welding, cutting or boring for surface treatment by providing a line or line pattern, e.g. a dotted break initiation line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • 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
    • H01L31/02—Details
    • 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
    • H01L31/04—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 adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules

Definitions

  • the present application relates to the technical field of solar photovoltaic components, in particular to a photovoltaic component and a barcode marking mechanism.
  • photovoltaic modules As a new energy device that can convert solar energy into electrical energy, photovoltaic modules have unique functions compared to other energy devices, and have outstanding advantages in cleanliness and environmental protection, so they are more and more widely used.
  • barcode labels are generally installed in photovoltaic modules to identify relevant information of photovoltaic modules.
  • Barcode labels include information such as manufacturer information, product model, order information, production location, and production time.
  • the barcode label is often pasted into the photovoltaic module, and the barcode label is printed on the label paper through the carbon tape by the barcode label printer. on the component.
  • the embodiment of the present application provides a photovoltaic module and a barcode printing mechanism to solve the problem in the prior art that the barcode of the photovoltaic module is easily polluted and aged and discolored, which affects the identification of barcode information.
  • the embodiment of the present application provides a photovoltaic module, including:
  • the photovoltaic cell layer is disposed between the glass cover plate and the back plate;
  • the barcode layer is attached to the side of the glass cover facing the backplane; the barcode layer includes A plurality of interconnected target particles, the target particles are obtained after the laser beam bombards the target.
  • the barcode layer By forming a barcode layer composed of multiple target particles on the surface of the glass cover of the photovoltaic module, where the target particles are obtained by bombarding the target with a laser beam, the barcode layer can be formed directly on the surface of the glass cover. It can not only avoid the pollution of the barcode layer by manual operation, but also because the target particle size obtained by laser beam bombardment is very small, a dense barcode layer can be formed at high temperature, which can effectively slow down the problem of aging and discoloration of the barcode layer.
  • the orthographic projection of the barcode layer on the side of the glass cover facing the back plate does not overlap with the orthographic projection of the photovoltaic cell layer on the side of the glass cover facing the back plate .
  • the color interference of the photovoltaic cell layer on the barcode layer can be avoided, the recognition rate of barcode information can be improved, and at the same time, the barcode layer can be prevented from blocking the photovoltaic cell layer from receiving sunlight, thereby improving the energy conversion efficiency of the photovoltaic module.
  • the photovoltaic module further includes: a first adhesive layer and a second adhesive layer;
  • the first adhesive layer is arranged between the glass cover plate and the photovoltaic cell layer, and covers the barcode layer;
  • the second adhesive layer is disposed between the photovoltaic cell layer and the back sheet.
  • the photovoltaic cell layer includes: a plurality of photovoltaic cell sheets;
  • the photovoltaic module also includes: welding strips and bus bars;
  • the plurality of photovoltaic cells are connected in series through the ribbons to form a plurality of photovoltaic cell strings; the ends of the plurality of photovoltaic cell strings are connected in parallel through the bus bars.
  • the orthographic projection of the barcode layer on the side of the glass cover facing the back plate is different from the orthographic projection of the bus bar on the side of the glass cover facing the back plate. overlapping;
  • the orthographic projection of the barcode layer on the side of the glass cover plate facing the back plate does not overlap with the orthographic projection of the solder ribbon on the side of the glass cover plate facing the back plate.
  • the barcode layer is disposed on a side close to the short side of the glass cover.
  • the particle size of the target particles is 1-50 nm.
  • the barcode layer has a thickness of 5-20 ⁇ m.
  • the embodiment of the present application provides a barcode coding mechanism for setting a barcode layer on the glass cover plate of the photovoltaic module as described in any one of the above, including:
  • the fixer is used to fix the glass cover
  • the target holder is used to clamp a target, and the target faces the first surface of the glass cover plate;
  • the laser generator is set to face the second surface of the glass cover
  • the laser beam generated by the laser generator enters from the second surface of the glass cover plate, exits from the first surface and shoots to the target; the second surface is opposite to the first surface. noodle.
  • the fixer includes: an upper pressing unit and a lower pressing unit;
  • the upper pressing unit and the lower pressing unit are oppositely disposed on both sides of the glass cover, and are used for clamping and fixing the glass cover.
  • a flexible material layer is provided on a side of the upper pressing unit facing the glass cover; a flexible material layer is provided on a side of the lower pressing unit facing the glass cover.
  • the barcode printing mechanism also includes: a dust collector;
  • the dust remover faces the first surface of the glass cover plate and is used for removing excess target material particles from the first surface of the glass cover plate.
  • a photovoltaic module is formed by sequentially stacking a glass cover, a photovoltaic cell layer, and a back sheet, and a barcode layer composed of multiple target particles is formed on the surface of the glass cover of the photovoltaic module.
  • the particles are obtained by bombarding the target with the laser beam, so that the barcode layer can be formed directly on the surface of the glass cover, which can avoid the pollution of the barcode layer by manual operation, and at the same time, the particle size of the target material obtained by the laser beam bombardment is very small.
  • a dense barcode layer can be formed at high temperature, which can effectively slow down the problem of aging and discoloration of the barcode layer.
  • FIG. 1 is a schematic structural diagram of a photovoltaic module provided by an embodiment of the present application
  • FIG. 2 is an exploded structure diagram of a photovoltaic module provided by an embodiment of the present application
  • Fig. 3 is a top view of the photovoltaic module provided by the embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a barcode printing mechanism provided in an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a photovoltaic module provided by the present application
  • FIG. 2 is an exploded structure diagram of a photovoltaic module provided by an embodiment of the present application.
  • the photovoltaic module includes:
  • the glass cover plate 10, the photovoltaic cell layer 12 and the back plate 13 are sequentially stacked, one side of the photovoltaic cell layer 12 is connected to the glass cover plate 10, and the other side of the photovoltaic cell layer 12 is connected to the back plate 13, A barcode layer 11 is arranged on the side surface of the glass cover plate 10 facing the back plate 13.
  • the barcode layer 11 is attached to the surface of the glass cover plate 10 and is fixedly connected with the glass cover plate 10.
  • the barcode layer 11 is made of a plurality of targets.
  • the target material particles are connected to each other, and the target material particles are obtained by bombarding the target material surface with a laser beam.
  • the surface of the target can be bombarded with a laser beam, and under the action of the energy of the laser beam, the surface of the target is sublimated to produce fine target particles, which are deposited on the surface of the glass cover plate 10, and more Target particles pile up to form a dense target particle layer. With the movement of the laser beam, the target particle layer will accumulate continuously along the moving path of the laser beam, thus forming a barcode layer. 11.
  • the trajectory of the laser beam can be controlled according to the preset barcode pattern, so that the target particles are piled up according to the preset barcode pattern, thereby forming the barcode layer 11 of the preset barcode pattern.
  • the barcode pattern on the barcode layer 11 is used to identify the relevant information of the photovoltaic module. It can be a one-dimensional barcode, a two-dimensional barcode, or a multi-dimensional barcode, such as a three-dimensional code. The setting is performed, which will not be described in detail in the embodiment of this application.
  • the target material forming the barcode layer 11 can be made of non-metallic materials, such as ceramic materials, or metal materials, such as iron, aluminum, magnesium, stainless steel, iron alloys, aluminum alloys, magnesium alloys and other metal materials and metal materials. Alloy materials. Those skilled in the art can make selections according to needs, which is not limited in this embodiment of the present application.
  • the surface of the metal target is bombarded by a laser beam to produce metal target particles.
  • the metal target particles will be oxidized under the action of high temperature , the target particle layer formed by the accumulation of oxidized metal target particles will present a certain color. Therefore, when the metal target is used to form the barcode layer 11, the specific color presented by the corresponding metal material oxide can be obtained, so that the barcode layer 11 can be obtained through the target material.
  • the selection of the material forms the barcode layer 11 of a preset color, increases the color difference between the barcode layer 11 and other parts of the photovoltaic module, and further improves the recognition rate of the barcode information.
  • those skilled in the art may select targets made of different metal materials according to the setting requirements of the color of the barcode layer 11 , which will not be repeated in the embodiments of the present application.
  • the glass cover plate 10 in the photovoltaic module is facing the sun, which requires good light transmission.
  • the glass cover plate 10 can be made of high-transparency glass, semi-tempered glass, and tempered glass. In practice, in the manufacturing process of photovoltaic modules, the glass cover plate 10 is also used to carry other components, therefore, tempered glass can be selected to ensure a certain mechanical strength.
  • the glass cover 10 can also be made of other materials, and the specific material of the glass cover 10 can be selected by those skilled in the art according to needs, and this application does not specifically limit it.
  • the back sheet 13 in the photovoltaic module is usually the side away from the sun, which supports and protects the photovoltaic cell layer 12 in the photovoltaic module, and requires certain water resistance and aging resistance.
  • TPE polyethylene fluoride film/polyester film/ethylene-vinyl acetate resin
  • TPT polyvinyl fluoride film/polyester film/polyvinyl fluoride
  • the photovoltaic module is formed by sequentially stacking the glass cover plate 10, the photovoltaic cell layer 12 and the back plate 13, and on the side of the glass cover plate 10 facing the back plate 13, a stack of target particles is formed.
  • the particle size of the obtained target material is very small, and a dense barcode layer 11 can be formed at high temperature, which can effectively alleviate the problem of aging and discoloration of the barcode layer 11 .
  • the orthographic projection of the barcode layer 11 on the side of the glass cover 10 facing the back plate 13 is the same as that of the photovoltaic cell layer 12 on the side of the glass cover 10 facing the back plate 13.
  • the orthographic projections of one side of the back plate 13 do not overlap each other.
  • both the barcode layer 11 and the photovoltaic cell layer 12 are arranged on the side of the glass cover plate 10 facing the back plate 13, usually, the barcode layer formed on the surface of the glass cover plate 10 is set to a depth of To increase the color difference between the barcode layer 11 and other parts of the photovoltaic module, thereby improving the recognition rate of barcode information.
  • the photovoltaic cell layer 12 is usually also dark in color.
  • the barcode layer 11 is placed on the glass cover plate 10.
  • the orthographic projection of the side facing the back plate 13 does not overlap with the orthographic projection of the photovoltaic cell layer 12 on the side of the glass cover plate 10 facing the back plate 13 .
  • the color of the barcode layer 11 can be set according to needs, so as to facilitate the identification of the barcode information during use.
  • Those skilled in the art can set the colors of the barcode layer 11 and the photovoltaic cell layer 12 according to needs, which is not limited in this embodiment of the present application.
  • the orthographic projection of the barcode layer 11 on the side of the glass cover plate 10 facing the back plate 13 is aligned with the photovoltaic cell layer 12.
  • the orthographic projections of the sides of the glass cover plate 10 facing the back plate 13 do not overlap each other. In this way, it is possible to prevent the photovoltaic cell layer 12 from causing color interference to the barcode layer 11, improve the recognition rate of barcode information, and at the same time prevent the barcode layer 11 from blocking the photovoltaic cell layer 12 from receiving sunlight, thereby improving the energy conversion efficiency of the photovoltaic module.
  • the photovoltaic module further includes: a first adhesive layer 14 and a second adhesive layer 15; the first adhesive layer 14 is arranged between the glass cover plate 10 and the photovoltaic cell between the layers 12, and cover the barcode layer 11; the second adhesive layer 15 is arranged between the photovoltaic cell layer 12 and the back between plates 13.
  • a first adhesive layer 14 may be disposed between the glass cover plate 10 and the photovoltaic cell layer 12 , and the glass cover plate 10 and the photovoltaic cell layer 12 are bonded and fixed through the first adhesive layer 14 .
  • the photovoltaic cell layer 12 has a side facing the sun and a side facing away from the sun, and the side of the photovoltaic cell layer 12 facing the sun and the glass cover 10 can be bonded and fixed through the first adhesive layer 14 .
  • the glass cover plate 10 and the photovoltaic cell layer 12 are bonded and fixed by the first adhesive layer 14, and at the same time the first adhesive layer 14 can cover the barcode layer 11, protect the barcode layer 11, and further slow down the aging and discoloration of the barcode layer 11.
  • a second adhesive layer 15 may also be provided between the photovoltaic cell layer 12 and the back sheet 13 , and the photovoltaic cell layer 12 and the back sheet 13 are bonded and fixed through the second adhesive layer 15 .
  • the side of the photovoltaic cell layer 12 facing away from the sun can be bonded and fixed to the back plate 13 through the second adhesive layer 15 .
  • the materials of the first adhesive layer 14 and the second adhesive layer 15 can be selected from: EVA (ethylene-vinylacetatecopolymer, ethylene-vinyl acetate copolymer), PVB (polyvinylbutyral, polyvinyl alcohol shrinkage) Butyraldehyde), etc.
  • the first adhesive layer 14 and the second adhesive layer 15 can also be made of other materials, wherein, the materials of the first adhesive layer 14 and the second adhesive layer 15 can be the same or different, and this application Not specifically limited.
  • the photovoltaic cell layer 12 includes: a plurality of photovoltaic cell sheets 121; the photovoltaic assembly further includes: a welding ribbon 16 and a bus bar 17; the plurality of photovoltaic cell sheets 121 pass through the welding The strips 16 are connected in series to form a plurality of photovoltaic cell strings; the ends of the plurality of photovoltaic cell strings are connected in parallel through the bus bars 17 .
  • the solar cell layer is used to convert light energy into electrical energy
  • the photovoltaic cell layer 12 can use a separate cell sheet, but in order to increase the light-receiving surface of the solar cell layer and improve the energy conversion efficiency of the photovoltaic module, the photovoltaic cell layer 12 may include a plurality of photovoltaic cells 121, and the plurality of photovoltaic cells 121 may be connected in series and/or in parallel to form a bulk solar cell layer.
  • the photovoltaic module may also include a ribbon 16 and a bus bar 17, and a plurality of photovoltaic cell sheets 121 are welded in series by using the ribbon 16 to form a photovoltaic cell string, and a plurality of photovoltaic cell strings are connected in parallel through the bus bar 17 to form a large block of solar cell layers.
  • the size of the solar cell layer and the number of photovoltaic cells 121 can be selected according to the design requirements of the photovoltaic module, which is not specifically limited in this embodiment of the present application.
  • the way of connecting multiple photovoltaic cells 121 in series and/or in parallel can be selected according to the design requirements of the photovoltaic module. Simultaneously realize the series connection and/or parallel connection between multiple photovoltaic cell pieces 121, which can be connected with each other through the welding ribbon 16 and the bus bar 17, or can be realized through other connection methods such as overlapping, which is not limited in the embodiment of the present application.
  • the orthographic projection of the barcode layer 11 on the side of the glass cover 10 facing the back plate 13 is the same as that of the bus bar 17 on the side of the glass cover 10 facing
  • the orthographic projections on one side of the back plate 13 do not overlap with each other;
  • the orthographic projections of the side of the cover plate 10 facing the back plate 13 do not overlap each other.
  • the barcode layer 11 and the bus bar 17 are all arranged on the side of the glass cover plate 10 facing the back plate 13.
  • the formation position of the barcode layer 11 is set so that the barcode layer 11 is formed on the glass cover 10.
  • the orthographic projection of the surface of the cover plate 10 and the orthographic projection of the bus bar 17 on the surface of the glass cover plate 10 do not overlap each other.
  • the bus bar 17 since the bus bar 17 usually has a certain color, in order to avoid the orthographic projection of the bus bar 17 on the surface of the glass cover 10 from overlapping with the orthographic projection of the barcode layer 11 on the surface of the glass cover 10, the bus bar The color of 17 interferes with the color of the barcode layer 11, which affects the barcode information recognition accuracy of the barcode layer 11.
  • the bus bar 17 By setting the relative position of the barcode layer 11 and the bus bar 17 in the photovoltaic module, the interference of the color of the bus bar 17 on the barcode layer is avoided.
  • the impact of 11 barcode information recognition improve the recognition rate of 11 barcode information on the barcode layer, and facilitate the traceability of product information.
  • the barcode layer 11 and the welding ribbon 16 are all arranged on the side of the glass cover plate 10 facing the back plate 13.
  • the formation position of the barcode layer 11 is set by controlling, so that the barcode
  • the orthographic projection of the layer 11 on the surface of the glass cover 10 and the orthographic projection of the welding ribbon 16 on the surface of the glass cover 10 do not overlap each other.
  • the welding ribbon 16 since the welding ribbon 16 usually has a certain color, in order to prevent the orthographic projection of the welding ribbon 16 on the surface of the glass cover 10 from overlapping with the orthographic projection of the barcode layer 11 on the surface of the glass cover 10, the welding ribbon 16 interferes with the color of the barcode layer 11, which affects the information recognition accuracy of the barcode layer 11.
  • the welding ribbon 16 By setting the relative position of the barcode layer 11 and the welding ribbon 16 in the photovoltaic module, the The influence of color interference on the barcode information recognition of the barcode layer 11 improves the recognition rate of the barcode information of the barcode layer 11 and facilitates the traceability of product information.
  • the barcode layer 11 is disposed on a side close to the short side of the glass cover 10 .
  • the barcode layer 11 can be arranged at any position near the side edge of the glass cover plate 10, and the position is within a preset range from the side edge of the glass cover plate 10, wherein the preset range can be based on the photovoltaic module Structural design to determine.
  • the photovoltaic cell layer 12 in the photovoltaic module will be set in the middle position, and a certain space needs to be reserved around the side of the photovoltaic module for assembly, etc.
  • the required reserved space around the photovoltaic module determines the location of the barcode layer 11, thereby avoiding the blocking of the photovoltaic cell layer 12 by the barcode layer 11 and the blocking of the barcode layer 11 by the photovoltaic module assembly.
  • the barcode layer 11 can be arranged on the side close to the short side of the glass cover plate 10.
  • the side of the long side of the photovoltaic module is usually used for splicing and assembling with other photovoltaic modules.
  • the barcode layer 11 can be placed 11 is arranged on the side close to the short side of the glass cover plate 10, which can avoid blocking the barcode layer 11 when the photovoltaic module is in use, and facilitate subsequent barcode recognition operations.
  • the barcode layer 11 is arranged on one side of the short side of the glass cover plate 10, and the distance from the short side of the glass cover plate 10 is within a preset range, wherein the distance preset range can be based on the photovoltaic cell layer in the photovoltaic module. 12 and the required reserved space around the photovoltaic module, which is not specifically limited in this embodiment of the present application.
  • the particle size of the target particles is 1-50 nm.
  • target particles with nanometer particle size can be obtained by bombarding the surface of the target with a laser beam, and target particles with different particle sizes can be obtained by controlling the energy of the laser beam that bombards the target, wherein , the particle size range of the target particles is 1-50nm, optionally, the particle size of the target particles is any value such as 1nm, 2nm, 5nm, 10nm, 20nm, 30nm or 50nm.
  • the particle size of the corresponding target particles can be determined according to the material of the target material and the preset thickness of the barcode layer 11, and the target particle size range can be obtained by adjusting the energy of the laser beam bombarding the target material. material particles, thereby forming a dense barcode layer 11, the particle size of the target material particles can be any value within the above particle size range, and other particle size values can also be selected, and the comparison of the embodiments of the present application is not limited.
  • the barcode layer 11 has a thickness of 5-20 ⁇ m.
  • a nanoscale target can be obtained by bombarding the surface of the target with a laser beam These target material particles are deposited on the surface of the glass cover plate 10 to form a dense target material particle layer.
  • barcode layers 11 with different thicknesses can be obtained.
  • the thickness of the barcode layer 11 may be 5-20 ⁇ m, optionally, the thickness of the barcode layer 11 is any value such as 5 ⁇ m, 8 ⁇ m, 10 ⁇ m, 15 ⁇ m or 20 ⁇ m.
  • the thickness of the barcode layer 11 may be uniform, or may have different thicknesses at different positions, which is not limited in this embodiment of the present application.
  • the thickness of the barcode is set according to the needs. Since the particle size of the target material obtained by bombarding the target with the laser beam is very small, a thinner barcode layer 11 can be formed. Therefore, when forming the barcode layer 11, the target The material consumption is very small, which can save consumables and reduce production costs during production; at the same time, because the target material consumption is very small, it is not necessary to frequently replace the target material during production, which is conducive to realizing production automation, improving production efficiency, and avoiding human factors. Layer 11 effects.
  • the photovoltaic module is formed by sequentially stacking the glass cover plate 10, the photovoltaic cell layer 12 and the back plate 13, and a barcode formed by stacking multiple target particles is formed on the side of the glass cover plate 10 facing the back plate 13 Layer 11, in which the target particles are obtained by bombarding the target with laser beams, and the barcode layer is placed on the side close to the short side of the glass cover plate 10, so as to avoid the blocking of the barcode layer by other parts of the photovoltaic module, so that the barcode layer can be directly Forming a dense barcode layer 11 on the surface of the glass cover plate 10 can effectively alleviate the problem of aging and discoloration of the barcode layer 11, and at the same time improve the recognition rate of the barcode and facilitate the traceability of product information.
  • another embodiment of the present application also provides a barcode printing mechanism for setting a barcode layer 11 on the glass cover plate 10 of the photovoltaic module as described in any one of the above.
  • the barcode marking mechanism may include: a laser generator 21, a fixer 23 and a target holder 22; the fixer 23 is used to fix the glass cover plate 10; the target holder 22 is used to Clamp the target, the target faces the first surface of the glass cover 10; the laser generator 21 is set to face the second surface of the glass cover 10; the laser generated by the laser generator 21 The beam enters from the second surface of the glass cover plate 10 , and exits from the first surface to the target; the second surface is the opposite surface to the first surface.
  • the barcode coding mechanism is provided with a base 20, and a laser generator 21 and a target holder 22 are arranged on the base 20, wherein the laser generator 21 is used to generate a laser beam, and the target The holder 22 is used to hold and fix the target.
  • the glass cover plate 10 to be marked is fixed between the laser generator 21 and the target holder 22 by the fixer 23, and the target is clamped and fixed by the target holder 22.
  • the first side of the glass cover 10 is the side of the glass cover 10 that needs to be marked
  • the second side of the glass cover 10 is the opposite side of the above-mentioned first side.
  • the angle at which the laser beam generated by the laser generator 21 strikes the target can be adjusted, thereby controlling the deposition position of the target particles.
  • the positions of the laser generator 21 and the target holder 22 can be set so that the laser beam generated by the laser generator 21 passes through the glass cover plate 10 and strikes the surface of the target vertically, and the target material generated on the surface of the target The particles fall on the surface of the glass cover 10 under the action of gravity to form the barcode layer 11 , thereby reducing the contamination of other positions of the glass cover 10 by scattering of the target particles.
  • the laser generator 21 can be provided with an adjustable base 211, and the laser generator 21 is movably connected with the base 20 of the coding mechanism through the adjustable base 211.
  • the focus position of the laser beam generated by the laser generator 21 can also be adjusted by adjusting the adjustable base 211 , so that the focus of the laser beam falls on the surface of the target material to avoid ablation of the glass cover plate 10 by the laser beam.
  • the adjustable base 211 can adopt a slide rail structure, a screw mechanism, a lead screw structure, etc., or other adjustable structures, which can be set by those skilled in the art according to needs, and this application will not repeat them.
  • the laser generator 21 may also include a laser generating head 212 and a scanning electron microscope 213, wherein the scanning electron microscope 213 is used to control the emission path of the laser beam, and the laser generating head 212 faces the second surface of the glass cover plate , for directing the laser beam to the glass cover, wherein the second surface of the glass cover is opposite to the coding side of the glass cover.
  • the laser beam generated by the laser generator 21 is reflected by the scanning electron mirror 213 and emitted from the laser generating head 212 .
  • the laser generating head 212 and the scanning electron mirror 213 can be arranged on the adjustable base 211, and the position of the laser generating head 212 and the scanning electron mirror 213 can be adjusted through the adjustable base 211, thereby controlling the trajectory of the laser beam.
  • the wavelength of the laser beam generated by the laser generator 21 may be 1064 nm, and other laser beam wavelengths may also be set according to the material of the target, which is not limited in the embodiment of the present application.
  • the fixture 23 includes: an upper pressing unit 231 and a lower pressing unit 232; the upper pressing unit 231 and the lower pressing unit 232 are oppositely arranged on the glass Both sides of the cover plate 10 are used to clamp and fix the glass cover plate 10 .
  • the barcode printing mechanism can also be provided with a fixer 23 for clamping and fixing the glass cover 10.
  • the fixer 23 can include an upper pressing unit 231 and a lower pressing unit 232.
  • the upper pressing unit 231 and the lower pressing unit 232 are arranged oppositely on both sides of the glass cover 10, so as to clamp and fix the glass cover 10 when the barcode printing mechanism is working.
  • one of the upper pressing unit 231 and the lower pressing unit 232 can be arranged on the side of the glass cover 10 that needs to be coded, and the other can be arranged on the opposite side of the glass cover 10 that needs to be coded.
  • the fixer 23 can also be provided with slidable guide rails, and the upper pressing unit 231 and the lower pressing unit 232 are respectively connected with the slidable guide rails, and the upper pressing unit 231 and the lower pressing unit 232 can be adjusted by adjusting the slidable guide rails. position, thereby adjusting the position of the glass cover plate 10 clamped and fixed by the upper pressing unit 231 and the lower pressing unit 232, and realizing the adjustment of the marking position on the surface of the glass cover plate 10.
  • the upper pressing unit 231 is provided with a flexible material layer 233 on the side facing the glass cover 10 ; the lower pressing unit 232 is provided on the side facing the glass cover 10 There is a layer 233 of flexible material.
  • a flexible material layer 233 may be provided on the side of the upper pressing unit 231 facing the glass cover 10 , and similarly, a side of the lower pressing unit 232 facing the glass cover 10 may also be provided.
  • the flexible material layer 233 so that when the upper pressing unit 231 and the lower pressing unit 232 clamp the glass cover 10, the flexible material layer 233 is in contact with the surface of the glass cover 10, thereby protecting the surface of the glass cover 10, Avoid damage to the surface of the glass cover plate 10, affecting the performance and service life of the photovoltaic module.
  • the flexible material layer 233 can be made of foam material, such as polyurethane foam material, polyethylene foam material, phenolic foam material and other materials, and can also be made of elastic elastomer material, such as EPDM rubber material, natural rubber material, styrene thermoplastic elastomer and other materials, also available It is made of other flexible materials, which can be selected by those skilled in the art according to needs, which is not limited in this embodiment of the present application.
  • the barcode printing mechanism further includes a dust remover 24; the dust remover 24 faces the first surface of the glass cover 10, and is used for cleaning Excess target particles.
  • the barcode coding mechanism can also be provided with a dust remover 24, which can be arranged at a position close to the target holder 22, and the dust remover 24 faces the first surface of the glass cover 10, wherein the glass cover
  • the first side of the plate 10 is the side of the glass cover plate 10 that needs to be marked.
  • the dust remover 24 can be used to remove excess target material particles on the first surface of the glass cover 10 .
  • the target is fixed on the surface of the glass cover 10 by the target holder 22, and the laser beam generated by the laser generator 21 penetrates the glass cover 10 and bombards the surface of the target.
  • the generated target particles are deposited on the surface of the glass cover 10 to form a dense barcode layer 11.
  • the required barcode pattern can be formed by adjusting the trajectory of the laser beam generated by the laser generator 21, which can avoid manual operation on the barcode layer. 11 pollution, and because the target particle size obtained by laser beam bombardment is very small, a dense barcode layer 11 can be formed at high temperature, which can effectively slow down the problem of aging and discoloration of the barcode layer 11, and can improve the efficiency of coding and the use of barcodes life.

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Abstract

本申请提供一种光伏组件及条码打码机构，其中，光伏组件包括玻璃盖板、条码层、光伏电池层和背板；光伏电池层设置于玻璃盖板与背板之间；条码层附着于玻璃盖板面向背板的一面；所述条码层包括多个相互连接的靶材颗粒，靶材颗粒为激光束对靶材轰击后所得到的。通过在光伏组件的玻璃盖板表面形成由多个靶材颗粒堆积而成的条码层，其中靶材颗粒是由激光束轰击靶材后得到的，能够避免人工操作对条码层的污染，同时由于激光束轰击得到的靶材颗粒粒径非常小，可以形成致密的条码层，可以有效减缓条码层老化变色的问题。

Description

一种光伏组件及条码打码机构
相关申请的交叉引用
本公开要求在2022年03月01日提交中国专利局、申请号为202220443054.5、名称为“一种光伏组件及条码打码机构”的专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本申请涉及太阳能光伏组件技术领域，尤其涉及一种光伏组件及条码打码机构。
背景技术
光伏组件作为一种能够将太阳能转化为电能的新能源装置，相对于其他能源装置具有特有的使用功能，并且在清洁、环保方面具有突出的优点，因此得到越来越广泛的应用。
目前光伏组件内一般会设置条码标签，用来识别光伏组件的相关信息，条码标签包括制造商信息、产品型号、订单信息、生产地点、生产时间等信息。相关技术中，条码标签常采用粘贴的方式粘接在光伏组件内，利用条码标签打印机将条码标识通过碳带打印到标签纸上，使用时通过人工将标签从离心纸上剥下后粘贴到光伏组件上。
而采用打印粘贴标签纸的方式，在进行标签纸粘接过程中容易对条码标签造成污染，影响条码标签的清晰度，同时由于光伏组件长时间受阳光照射，打印的条码标签容易老化变色使得条码图案变模糊，影响条码信息的识别，不利于对产品信息的追溯。
发明内容
本申请实施例提供一种光伏组件及条码打码机构，以解决现有技术中光伏组件的条码容易受污染和老化变色而影响条码信息识别的问题。
第一方面，本申请实施例提供一种光伏组件，包括：
玻璃盖板、条码层、光伏电池层和背板；
所述光伏电池层设置于所述玻璃盖板与所述背板之间；
所述条码层附着于所述玻璃盖板面向所述背板的一面；所述条码层包括 多个相互连接的靶材颗粒，所述靶材颗粒为激光束对靶材轰击后所得到的。
通过在光伏组件的玻璃盖板表面形成由多个靶材颗粒堆积而成的条码层，其中靶材颗粒是由激光束轰击靶材后得到的，从而可以直接在玻璃盖板表面形成条码层，既能避免人工操作对条码层的污染，同时由于激光束轰击得到的靶材颗粒粒径非常小，在高温下可以形成致密的条码层，可以有效减缓条码层老化变色的问题。
可选地，所述条码层在所述玻璃盖板面向所述背板的一面的正投影，与所述光伏电池层在所述玻璃盖板面向所述背板的一面的正投影互不重叠。从而既能避免光伏电池层对条码层产生颜色干扰，能够提高条码信息的识别率，同时又可以避免条码层遮挡光伏电池层接收阳光，从而提高光伏组件的能量转换效率。
可选地，所述光伏组件还包括：第一胶层和第二胶层；
所述第一胶层设置在所述玻璃盖板与所述光伏电池层之间，并覆盖所述条码层；
所述第二胶层设置在所述光伏电池层与所述背板之间。
可选地，所述光伏电池层包括：多个光伏电池片；
所述光伏组件还包括：焊带和汇流条；
所述多个光伏电池片通过所述焊带串联连接形成多个光伏电池串组；所述多个光伏电池串组的端部通过所述汇流条并联连接。
可选地，所述条码层在所述玻璃盖板面向所述背板的一面上的正投影，与所述汇流条在所述玻璃盖板面向所述背板的一面上的正投影互不重叠；
所述条码层在所述玻璃盖板面向所述背板的一面上的正投影，与所述焊带在所述玻璃盖板面向所述背板的一面上的正投影互不重叠。通过设置光伏组件中条码层与汇流条的相对位置，以及条码层与焊带的相对位置，从而避免由于焊带和汇流条的颜色干扰，对条码层条码信息识别的影响，提高条码层条码信息的识别率，便于产品信息的追溯。
可选地，所述条码层设置在靠近所述玻璃盖板的短边的一侧。
可选地，所述靶材颗粒的粒径为1～50nm。
可选地，所述条码层的厚度为5～20μm。
第二方面，本申请实施例提供一种条码打码机构，用于在如上任一项所述的光伏组件的玻璃盖板上设置条码层，包括：
激光发生器、固定器和靶材夹持器；
所述固定器用于固定所述玻璃盖板；
所述靶材夹持器用于夹持靶材，所述靶材面向所述玻璃盖板的第一面；
所述激光发生器设置为面向所述玻璃盖板的第二面；
所述激光发生器发生的激光束由所述玻璃盖板的第二面射入，从所述第一面射出并射向所述靶材；所述第二面为所述第一面的相对面。
可选地，所述固定器包括：上压紧单元和下压紧单元；
所述上压紧单元和所述下压紧单元位置相对的设置在所述玻璃盖板的两侧，用于夹持固定所述玻璃盖板。
可选地，所述上压紧单元面向所述玻璃盖板的一侧设置有柔性材料层；所述下压紧单元面向所述玻璃盖板的一侧设置有柔性材料层。
可选地，所述条码打码机构还包括：除尘器；
所述除尘器面向所述玻璃盖板的第一面，用于清除所述玻璃盖板第一面上多余的靶材颗粒。
在本申请实施例中，由玻璃盖板、光伏电池层和背板依次层叠形成光伏组件，并在光伏组件的玻璃盖板表面形成由多个靶材颗粒堆积而成的条码层，其中靶材颗粒是由激光束轰击靶材后得到的，从而可以直接在玻璃盖板表面形成条码层，既能避免人工操作对条码层的污染，同时由于激光束轰击得到的靶材颗粒粒径非常小，在高温下可以形成致密的条码层，可以有效减缓条码层老化变色的问题。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍。
图1为本申请实施例提供的一种光伏组件的结构示意图；
图2为本申请实施例提供的光伏组件的爆炸结构图；
图3为本申请实施例提供的光伏组件的俯视图；
图4为本申请实施例提供的条码打码机构的结构示意图。
附图标记：
10-玻璃盖板，11-条码层，12-光伏电池层，121-光伏电池片，13-背板，14-
第一胶层，15-第二胶层，16-焊带，17-汇流条，20-基座，21-激光发生器，211-可调底座，212-激光发生头，213-扫描电镜，22-靶材夹持器，23-固定器，231-上压紧单元，232-下压紧单元，233-柔性材料层，24-除尘器。
具体实施方式
下面将参照附图更详细地描述本申请的示例性实施例。虽然附图中显示了本申请的示例性实施例，然而应当理解的是，还可以以各种形式实现本申请而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本申请，并且能够将本申请的范围完整的传达给本领域的技术人员。
下面结合图1和图2描述根据本申请实施例的一种光伏组件。图1为本申请提供的光伏组件的结构示意图；图2为本申请实施例提供的光伏组件的爆炸结构图。
参照图1和图2，根据本申请实施例的光伏组件，包括：
玻璃盖板10、条码层11、光伏电池层12和背板13；所述光伏电池层12设置于所述玻璃盖板10与所述背板13之间；所述条码层11附着于所述玻璃盖板10面向所述背板13的一面；所述条码层11包括多个相互连接的靶材颗粒，所述靶材颗粒为激光束对靶材轰击后所得到的。
在本申请实施例中，玻璃盖板10、光伏电池层12和背板13依次层叠设置，光伏电池层12的一面与玻璃盖板10连接，光伏电池层12的另一面与背板13连接，在玻璃盖板10面向背板13的一侧表面上设置有条码层11，条码层11附着在玻璃盖板10的表面，与玻璃盖板10固定连接，其中，条码层11是由多个靶材颗粒相互连接构成的，靶材颗粒是通过激光束轰击靶材表面而得到的。
具体地，可以通过激光束轰击靶材的表面，在激光束的能量作用下，靶材表面升华产生细小的靶材颗粒，这些靶材颗粒在玻璃盖板10表面沉积，并在高温作用下多个靶材颗粒相互堆积形成致密的靶材颗粒层，随着激光束的移动，靶材颗粒层会沿着激光束的移动路径进行连续堆积，进而形成了条码层 11。
在本申请实施例中，可以根据预设的条码图案，控制激光束的运动轨迹，使靶材颗粒按照预设的条码图案进行堆积，从而形成预设条码图案的条码层11。
需要说明的是，条码层11的条码图案用于识别光伏组件的相关信息，可以是一维条码，也可是是二维条码，还可以是多维条码，如三维码，本领域技术人员可以根据需要进行设置，本申请实施例对此不作赘述。
可选地，形成条码层11的靶材可以为非金属材料制成，如陶瓷材料，也可以为金属材料，如铁、铝、镁、不锈钢、铁合金、铝合金、镁合金等金属材料以及金属合金材料。本领域技术人员可以根据需要进行选择，本申请实施例对此不做限制。
可以理解的是，当采用金属材料制成的靶材形成条码层11时，金属靶材表面受到激光束轰击产生金属靶材颗粒，通常情况下，金属靶材颗粒在高温的作用下会发生氧化，氧化后的金属靶材颗粒堆积形成的靶材颗粒层会呈现一定的颜色，因此，采用金属靶材形成条码层11时，可以得到相应金属材料氧化物呈现的特定颜色，从而可以通过靶材材质的选择，形成预设颜色的条码层11，增加条码层11与光伏组件其他部分的色差，进而提高条码信息的识别率。在实际使用中，本领域技术人员可以根据条码层11颜色的设置需要选择不同金属材料制成的靶材，本申请实施例对此不再赘述。
通常情况下，光伏组件中玻璃盖板10是面向太阳的一面，需要良好的透光性，玻璃盖板10可以选用高透玻璃、半钢化玻璃以及钢化玻璃等。实际中在光伏组件的生产制造过程中，玻璃盖板10还用于承载其他部件，因此，可以选用钢化玻璃，以保证一定的力学强度。当然玻璃盖板10还可以由其他材料制成，玻璃盖板10的具体材料本领域技术人员可以根据需要进行选择，本申请对此不作具体限定。
此外，光伏组件中背板13通常是背离太阳的一面，对光伏组件中的光伏电池层12起到支撑和保护作用，需要一定的阻水性和耐老化性，可以选用多层结构的复合材料制成，比如选择用三层结构的TPE(聚氟乙烯薄膜/聚酯薄膜/乙烯-醋酸乙烯树脂)材料制成，或者选用三层结构的TPT(聚氟乙烯薄膜/聚酯薄膜/聚氟乙烯薄膜)材料制成，当然背板13还可以由其他材料制成， 本领域技术人员可以根据需要进行选择，本申请对此不作具体限定。
在本申请实施例中，由玻璃盖板10、光伏电池层12和背板13依次层叠形成光伏组件，并在玻璃盖板10面向背板13的一面形成由多个靶材颗粒堆积而成的条码层11，其中靶材颗粒是由激光束轰击靶材后得到的，从而可以直接在玻璃盖板10表面形成条码层11，既能避免人工操作对条码层11的污染，同时由于激光束轰击得到的靶材颗粒粒径非常小，在高温下可以形成致密的条码层11，可以有效减缓条码层11老化变色的问题。
可选地，如图1所示，所述条码层11在所述玻璃盖板10面向所述背板13的一面的正投影，与所述光伏电池层12在所述玻璃盖板10面向所述背板13的一面的正投影互不重叠。
具体地，在光伏组件中，条码层11和光伏电池层12都设置在玻璃盖板10面向背板13的一面上，通常情况下，在玻璃盖板10的表面所形成的条码层设置为深色，以增加条码层11与光伏组件其他部分的色差，进而提高条码信息的识别率。而光伏电池层12通常也为深色，为了光伏电池层12对条码层11颜色的干扰，通过设置光伏组件中条码层11和光伏电池层12的相对位置，使条码层11在玻璃盖板10面向背板13的一面的正投影，与光伏电池层12在玻璃盖板10面向背板13的一面的正投影互不重叠。
可以理解的是，条码层11的颜色可以根据需要进行设置，以便于使用时条码信息的识别，同样地，光伏电池层12的颜色也可以根据需要进行设置，以便于使用时提高光伏电池层12的使用性能，本领域技术人员可以根据需要设置条码层11和光伏电池层12的颜色，本申请实施例对此不作限制。
在本申请实施例中，通过设置光伏组件中的条码层11与光伏电池层12的相对位置，使条码层11在玻璃盖板10面向背板13的一面的正投影，与光伏电池层12在玻璃盖板10面向背板13的一面的正投影互不重叠。从而既能避免光伏电池层12对条码层11产生颜色干扰，能够提高条码信息的识别率，同时又可以避免条码层11遮挡光伏电池层12接收阳光，从而提高光伏组件的能量转换效率。
可选地，参照图1和图2，所述光伏组件还包括：第一胶层14和第二胶层15；所述第一胶层14设置在所述玻璃盖板10与所述光伏电池层12之间，并覆盖所述条码层11；所述第二胶层15设置在所述光伏电池层12与所述背 板13之间。
在本申请实施例中，在玻璃盖板10与光伏电池层12之间可以设置有第一胶层14，通过第一胶层14将玻璃盖板10与光伏电池层12粘接固定。通常情况下，光伏电池层12有面向太阳的一面和背离太阳的一面，可以通过第一胶层14将光伏电池层12面向太阳的一面与玻璃盖板10粘接固定。
可以理解的是，通过在玻璃盖板10与光伏电池层12之间设置第一胶层14，利用第一胶层14将玻璃盖板10与光伏电池层12粘接固定，同时第一胶层14可以覆盖条码层11，对条码层11起到保护作用，可以进一步减缓条码层11的老化变色。
同样，在光伏电池层12与背板13之间也可以设置第二胶层15，通过第二胶层15将光伏电池层12与背板13粘接固定。通常情况下，可以通过第二胶层15将光伏电池层12背离太阳的一面与背板13粘接固定。
需要说明的是，在申请实施例中，第一胶层14和第二胶层15的材质可以选用：EVA(ethylene-vinylacetatecopolymer，乙烯-醋酸乙烯醋共聚物)、PVB(polyvinylbutyral，聚乙烯醇缩丁醛)等，第一胶层14和第二胶层15还可以由其他材料制成，其中，第一胶层14与第二胶层15的材质可以相同，也可以不同，本申请对此不作具体限定。
可选地，参照图3，所述光伏电池层12包括：多个光伏电池片121；所述光伏组件还包括：焊带16和汇流条17；所述多个光伏电池片121通过所述焊带16串联连接形成多个光伏电池串组；所述多个光伏电池串组的端部通过所述汇流条17并联连接。
在本申请实施例中，太阳能电池层用于将光能转化为电能，光伏电池层12可以采用单独的电池片，但为了增加太阳能电池层受光面，提升光伏组件的能量转换效率，光伏电池层12可以包括多个光伏电池片121，多个光伏电池片121可以通过串联连接和/或并联连接的方式形成大块的太阳能电池层。可选地，光伏组件还可以包括焊带16和汇流条17，使用焊带16将多个光伏电池片121串联焊接形成光伏电池串组，多个光伏电池串组通过汇流条17并联连接形成大块的太阳能电池层。
可理解的是，太阳能电池层的尺寸大小以及光伏电池片121的数量，可以根据光伏组件的设计要求进行选择，本申请实施例对此不作具体限定。
需要说明的是，多个光伏电池片121之间的串联和/或并联的方式，可以根据光伏组件的设计要求进行选择。同时实现多个光伏电池片121之间的串联和/或并联，可以通过焊带16和汇流条17相互连接，也可以通过搭接等其他连接方式实现，本申请实施例对此不作限制。
可选地，参照图1和图3，所述条码层11在所述玻璃盖板10面向所述背板13的一面上的正投影，与所述汇流条17在所述玻璃盖板10面向所述背板13的一面上的正投影互不重叠；所述条码层11在所述玻璃盖板10面向所述背板13的一面上的正投影，与所述焊带16在所述玻璃盖板10面向所述背板13的一面上的正投影互不重叠。
具体地，条码层11和汇流条17都设置在玻璃盖板10面向背板13的一面，在玻璃盖板10表面形成条码层11时，设置条码层11的形成位置，使条码层11在玻璃盖板10表面的正投影与汇流条17在玻璃盖板10表面的正投影互不重叠。
在本申请实施例中，由于汇流条17通常带有一定的颜色，为了避免汇流条17在玻璃盖板10表面的正投影与条码层11在玻璃盖板10表面的正投影重叠，导致汇流条17的颜色对条码层11的颜色干扰，影响条码层11的条码信息识别准确率，通过设置光伏组件中条码层11与汇流条17的相对位置，从而避免由于汇流条17的颜色干扰对条码层11条码信息识别的影响，提高条码层11条码信息的识别率，便于产品信息的追溯。
同样地，所述条码层11在所述玻璃盖板10面向所述背板13的一面上的正投影，与所述焊带16在所述玻璃盖板10面向所述背板13的一面上的正投影互不重叠。
具体地，条码层11和焊带16都设置在玻璃盖板10面向所述背板13的一面，在玻璃盖板10表面形成条码层11时，通过控设置条码层11的形成位置，使条码层11在玻璃盖板10表面的正投影与焊带16在玻璃盖板10表面的正投影互不重叠。
在本申请实施例中，由于焊带16通常带有一定的颜色，为了避免焊带16在玻璃盖板10表面的正投影与条码层11在玻璃盖板10表面的正投影重叠，导致焊带16对条码层11的颜色干扰，影响条码层11的信息识别准确率，通过设置光伏组件中条码层11与焊带16的相对位置，从而避免由于焊带16的 颜色干扰对条码层11条码信息识别的影响，提高条码层11条码信息的识别率，便于产品信息的追溯。
可选地，参照图3，所述条码层11设置在靠近所述玻璃盖板10的短边的一侧。
在本申请实施例中，条码层11可以设置在玻璃盖板10靠近侧边边缘的任意位置，该位置距离玻璃盖板10的侧边在预设范围内，其中预设范围可以根据光伏组件的结构设计来确定。通常情况下，光伏组件中光伏电池层12会设置在居中位置，而光伏组件的四周侧边需要预留一定的空间用于组装等，因此，可以根据光伏组件中光伏电池层12的具体位置以及光伏组件四周需要的预留空间确定条码层11的设置位置，从而避免条码层11对光伏电池层12的遮挡，以及光伏组件组装使用对条码层11的遮挡。
进一步地，参照图3，条码层11可以设置在靠近玻璃盖板10的短边的一侧，使用时，光伏组件长边的一侧通常用于与其他光伏组件进行拼接组装，可以将条码层11设置在靠近玻璃盖板10的短边的一侧，能够避免光伏组件使用时对条码层11的遮挡，便于后续条码的识别操作。需要说明的是，条码层11设置在玻璃盖板10的短边的一侧，距离玻璃盖板10的短侧边在预设范围内，其中，距离预设范围可以根据光伏组件中光伏电池层12的具体位置以及光伏组件四周需要的预留空间来确定，本申请实施例对此不作具体限制。
可选地，在本申请实施例中，所述靶材颗粒的粒径为1～50nm。
在本申请实施例中，通过激光束轰击靶材的表面可以得到纳米级粒径的靶材颗粒，可以通过控制轰击靶材的激光束的能量大小来得到不同粒径大小的靶材颗粒，其中，靶材颗粒的粒径范围为1～50nm，可选地，靶材颗粒的粒径为1nm、2nm、5nm、10nm、20nm、30nm或50nm等任一数值。
可理解的是，可以根据靶材的材质以及条码层11的预设厚度，确定相应的靶材颗粒的粒径大小，通过调整轰击靶材的激光束的能量大小，得到相应粒径范围的靶材颗粒，从而形成致密的条码层11，靶材颗粒的粒径可以为上述粒径范围内的任一数值，也可以选择其他的粒径值，本申请实施例对比不作限制。
可选地，在本申请实施例中，所述条码层11的厚度为5～20μm。
在本申请实施例中，通过激光束轰击靶材的表面可以得到纳米级的靶材 颗粒，这些靶材颗粒在玻璃盖板10表面沉积形成致密的靶材颗粒层，通过控制靶材颗粒的沉积量，得到不同厚度的条码层11。其中，条码层11的厚度可以为5～20μm，可选地，条码层11的厚度为5μm、8μm、10μm、15μm或20μm等任一数值。
可理解的是，条码层11的厚度可以是均一厚度，也可以是不同位置具有不同的厚度，本申请实施例对此不作限制。
在本申请实施例中，根据需要设置条码的厚度，由于通过激光束轰击靶材得到的靶材颗粒粒径非常小，可以形成较薄的条码层11，因此，在形成条码层11时对靶材的消耗很小，生产时可以节省耗材，降低生产成本；同时，由于靶材的消耗很小，生产时不用频繁更换靶材，有利于实现生产自动化，便于提升生产效率，避免人为因素对条码层11的影响。
在本申请实施例中，由玻璃盖板10、光伏电池层12和背板13依次层叠形成光伏组件，在玻璃盖板10面向背板13的一面形成由多个靶材颗粒堆积而成的条码层11，其中靶材颗粒是由激光束轰击靶材后得到的，并将条码层设置在靠近玻璃盖板10的短边的一侧，避免光伏组件其他部分对条码层的遮挡，从而可以直接在玻璃盖板10表面形成致密的条码层11，可以有效减缓条码层11老化变色的问题，同时能够提高条码的识别率，便于产品信息的追溯。
参照图4，本申请的另一实施例还提供了一种条码打码机构，用于在如上任一项所述的光伏组件的玻璃盖板10上设置条码层11。
所述条码打码机构可以包括：激光发生器21、固定器23和靶材夹持器22；所述固定器23用于固定所述玻璃盖板10；所述靶材夹持器22用于夹持靶材，所述靶材面向所述玻璃盖板10的第一面；所述激光发生器21设置为面向所述玻璃盖板10的第二面；所述激光发生器21发生的激光束由所述玻璃盖板10的第二面射入，从所述第一面射出并射向所述靶材；所述第二面为所述第一面的相对面。
在本申请实施例中，条码打码机构设置有基座20，在基座20上设置有激光发生器21和靶材夹持器22，其中，激光发生器21用于发生激光束，靶材夹持器22用于夹持固定靶材。
使用时，利用固定器23将需要打标的玻璃盖板10固定在所述激光发生器21和所述靶材夹持器22之间，通过靶材夹持器22将靶材夹持固定在玻璃 盖板10的第一面上，使靶材面向玻璃盖板10的第一面，激光发生器21发生的激光束由玻璃盖板10的第二面射入，激光束透过玻璃盖板10，从玻璃盖板10的第一面射出并射向靶材，激光束轰击靶材的表面，靶材表面升华产生靶材颗粒，靶材颗粒在玻璃盖板10表面沉积形成条码层11。可理解的是，玻璃盖板10的第一面为玻璃盖板10需要打标的一面，玻璃盖板10的第二面是上述第一面的相对面。
需要说明的是，可以通过调整激光发生器21与靶材夹持器22的相对位置，从而调整激光发生器21发生的激光束轰击靶材的角度，进而控制靶材颗粒的沉积位置。可选地，可以设置激光发生器21与靶材夹持器22的位置，使激光发生器21发生的激光束透过玻璃盖板10垂直轰击在靶材表面，靶材表面所产生的靶材颗粒在重力作用下落在玻璃盖板10表面从而形成条码层11，从而减少靶材颗粒的散射对玻璃盖板10其他位置的污染。
可选地，参照图4，激光发生器21可以设置有可调底座211，激光发生器21通过可调底座211与打码机构的基座20活动连接，使用时，调整可调底座211，改变激光发生器21的位置，通过调整激光发生器21按照预设的轨迹运行，可以使激光束轰击靶材得到的颗粒按照预设的轨迹沉积，从而可以在玻璃盖板10表面形成预设图案的条码层11。
同时，还可以通过调节可调底座211，调整激光发生器21发生的激光束的焦点位置，使激光束焦点正好落在靶材的表面，避免激光束对玻璃盖板10的烧蚀。
可理解的是，可调底座211可以采用滑轨结构、螺杆机构、丝杠结构等，也可以采用其他可调节结构，本领域技术人员可以根据需要设置，本申请对此不作赘述。
可选地，参照图4，激光发生器21还可以包括激光发生头212和扫描电镜213，其中，扫描电镜213用于控制激光束的发射路径，激光发生头212面向玻璃盖板的第二表面，用于将激光束射向玻璃盖板，其中，玻璃盖板的第二表面为玻璃盖板打码一面的相对面。使用时，激光发生器21发生的激光束经过扫描电镜213的反射，从激光发生头212射出。激光发生头212和扫描电镜213可以设置在可调底座211上，通过可调底座211调节激光发生头212和扫描电镜213的位置，从而控制激光束的运行轨迹。
需要说明的是，本申请实施例中，激光发生器21发生的激光束的波长可以为1064nm，也可以根据靶材的材质设置其他的激光束波长，本申请实施例对此不作限制。
可选地，参照图4，所述固定器23包括：上压紧单元231和下压紧单元232；所述上压紧单元231和所述下压紧单元232位置相对的设置在所述玻璃盖板10的两侧，用于夹持固定所述玻璃盖板10。
在本申请实施例中，条码打码机构还可以设置有固定器23，用于夹持固定玻璃盖板10，固定器23可以包括上压紧单元231和下压紧单元232，上压紧单元231和下压紧单元232位置相对的设置在玻璃盖板10的两侧，从而在条码打码机构工作时夹持固定玻璃盖板10。
可理解的是，上压紧单元231和下压紧单元232其中一个可以设置在玻璃盖板10需要打码的一面，另一个设置在玻璃盖板10需要打码的一面的相对面。
进一步地，固定器23还可以设置有可滑动导轨，上压紧单元231和下压紧单元232分别与可滑动导轨连接，可以通过调整可滑动导轨调整上压紧单元231和下压紧单元232的位置，从而调整由上压紧单元231和下压紧单元232夹持固定的玻璃盖板10的位置，实现对玻璃盖板10表面打标位置的调整。
可选地，参照图4，所述上压紧单元231面向所述玻璃盖板10的一侧设置有柔性材料层233；所述下压紧单元232面向所述玻璃盖板10的一侧设置有柔性材料层233。
在本申请实施例中，可以在上压紧单元231面向所述玻璃盖板10的一侧设置柔性材料层233，同样，在下压紧单元232面向所述玻璃盖板10的一侧也可以设置柔性材料层233，从而在上压紧单元231和下压紧单元232夹持玻璃盖板10时，柔性材料层233与玻璃盖板10表面接触，从而对玻璃盖板10表面起到保护作用，避免对玻璃盖板10的表面造成损伤，影响光伏组件的性能和使用寿命。
需要说明的是，柔性材料层233可以为泡沫材料制成，如聚氨酯泡沫材料、聚乙烯泡沫材料、酚醛泡沫材料等材料制成，也可以为性弹性体材料制成，如三元乙丙橡胶材料、天然橡胶材料、苯乙烯热塑性弹性体等材料制成，也可 以为其他柔性材料制成，本领域技术人员可以根据需要具体选择，本申请实施例对此不作限制。
可选地，参照图4，所述条码打码机构还包括除尘器24；所述除尘器24面向所述玻璃盖板10的第一面，用于清除所述玻璃盖板10第一面上多余的靶材颗粒。
在本申请实施例中，条码打码机构还可以设置有除尘器24，除尘器24可以设置在靠近靶材夹持器22的位置，除尘器24面向玻璃盖板10第一面，其中玻璃盖板10第一面为玻璃盖板10需要打标的一面。使用时，在条码打码机构完成打标后，可以使用除尘器24清除玻璃盖板10第一面上多余的靶材颗粒。
在本申请实施例中，通过靶材夹持器22将靶材固定在玻璃盖板10的表面，由激光发生器21发生的激光束透过玻璃盖板10轰击在靶材表面，靶材表面产生的靶材颗粒在玻璃盖板10表面沉积形成致密的条码层11，同时，可以通过调节激光发生器21发生的激光束的运行轨迹，形成需要的条码图案，既能避免人工操作对条码层11的污染，同时由于激光束轰击得到的靶材颗粒粒径非常小，在高温下可以形成致密的条码层11，可以有效减缓条码层11老化变色的问题，能够提高打码效率和条码的使用寿命。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本说明书中的各个实施例均采用相关的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。以上所述仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围。凡在本申请的精神和原则之内所作的任何修改、等同替换、改进等，包含在本申请的保护范围内。

Claims (12)

  1. 一种光伏组件，其特征在于，包括：
    玻璃盖板、条码层、光伏电池层和背板；
    所述光伏电池层设置于所述玻璃盖板与所述背板之间；
    所述条码层附着于所述玻璃盖板面向所述背板的一面；所述条码层包括多个相互连接的靶材颗粒，所述靶材颗粒为激光束对靶材轰击后所得到的。
  2. 根据权利要求1所述的光伏组件，其特征在于，所述条码层在所述玻璃盖板面向所述背板的一面的正投影，与所述光伏电池层在所述玻璃盖板面向所述背板的一面的正投影互不重叠。
  3. 根据权利要求1所述的光伏组件，其特征在于，所述光伏组件还包括：第一胶层和第二胶层；
    所述第一胶层设置在所述玻璃盖板与所述光伏电池层之间，并覆盖所述条码层；
    所述第二胶层设置在所述光伏电池层与所述背板之间。
  4. 根据权利要求1所述的光伏组件，其特征在于，所述光伏电池层包括：多个光伏电池片；
    所述光伏组件还包括：焊带和汇流条；
    所述多个光伏电池片通过所述焊带串联连接形成多个光伏电池串组；所述多个光伏电池串组的端部通过所述汇流条并联连接。
  5. 根据权利要求4所述的光伏组件，其特征在于，所述条码层在所述玻璃盖板面向所述背板的一面上的正投影，与所述汇流条在所述玻璃盖板面向所述背板的一面上的正投影互不重叠；
    所述条码层在所述玻璃盖板面向所述背板的一面上的正投影，与所述焊带在所述玻璃盖板面向所述背板的一面上的正投影互不重叠。
  6. 根据权利要求1所述的光伏组件，其特征在于，所述条码层设置在靠近所述玻璃盖板的短边的一侧。
  7. 根据权利要求1所述的光伏组件，其特征在于，所述靶材颗粒的粒径为1～50nm。
  8. 根据权利要求1所述的光伏组件，其特征在于，所述条码层的厚度为5～20μm。
  9. 一种条码打码机构，其特征在于，用于在如权利要求1-8任一项所述的光伏组件的玻璃盖板上设置条码层，包括：
    激光发生器、固定器和靶材夹持器；
    所述固定器用于固定所述玻璃盖板；
    所述靶材夹持器用于夹持靶材，所述靶材设置为面向所述玻璃盖板的第一面；
    所述激光发生器设置为面向所述玻璃盖板的第二面；
    所述激光发生器发生的激光束由所述玻璃盖板的第二面射入，从所述第一面射出并射向所述靶材；其中，所述第二面为所述第一面的相对面。
  10. 根据权利要求9所述的条码打码机构，其特征在于，所述固定器包括：上压紧单元和下压紧单元；
    所述上压紧单元和所述下压紧单元位置相对的设置在所述玻璃盖板的两侧，用于夹持固定所述玻璃盖板。
  11. 根据权利要求10所述的条码打码机构，其特征在于，所述上压紧单元面向所述玻璃盖板的一侧设置有柔性材料层；所述下压紧单元面向所述玻璃盖板的一侧设置有柔性材料层。
  12. 根据权利要求9所述的条码打码机构，其特征在于，所述条码打码机构还包括：除尘器；
    所述除尘器面向所述玻璃盖板的第一面，用于清除所述玻璃盖板第一面上多余的靶材颗粒。
PCT/CN2023/078745 2022-03-01 2023-02-28 一种光伏组件及条码打码机构 WO2023165472A1 (zh)

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