WO2023197764A1 - 一种电池串焊接机及电池串焊接方法 - Google Patents

一种电池串焊接机及电池串焊接方法 Download PDF

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Publication number
WO2023197764A1
WO2023197764A1 PCT/CN2023/078606 CN2023078606W WO2023197764A1 WO 2023197764 A1 WO2023197764 A1 WO 2023197764A1 CN 2023078606 W CN2023078606 W CN 2023078606W WO 2023197764 A1 WO2023197764 A1 WO 2023197764A1
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WIPO (PCT)
Prior art keywords
battery
welding
conveying
group
ribbon
Prior art date
Application number
PCT/CN2023/078606
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English (en)
French (fr)
Inventor
徐青
Original Assignee
无锡奥特维科技股份有限公司
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Publication of WO2023197764A1 publication Critical patent/WO2023197764A1/zh

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Classifications

    • 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
    • H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
    • B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • 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
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • 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
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08—Auxiliary devices therefor
    • 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
    • H01L21/67739—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 into and out of processing chamber
    • H01L21/67742—Mechanical parts of transfer 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
    • H01L21/67739—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 into and out of processing chamber
    • H01L21/6776—Continuous loading and unloading into and out of a processing chamber, e.g. transporting belts within processing chambers

Definitions

  • the invention relates to the field of battery production, specifically a battery string welding machine and a battery string welding method.
  • Traditional battery string production uses flux to weld ribbons and battery sheets together under high temperature conditions.
  • the specific steps are: first apply flux on the battery sheet or soldering strip, then stack the soldering ribbon and battery sheet together, and then use a high-temperature infrared welding device to heat and melt the tin-plated layer on the surface of the soldering strip and weld it to the battery sheet for printing.
  • the main grid lines are made of silver paste.
  • soldering ribbon is directly connected to the auxiliary grid line of the battery cell for conductive bus.
  • auxiliary grid lines are very thin, the solder ribbon cannot be directly welded to the auxiliary grid to connect to the battery piece.
  • the first aspect of the present invention provides a battery string welding machine, which can realize the string welding production of main grid-less battery sheets.
  • the following technical solutions are adopted:
  • the battery string welding machine includes a sizing part, a battery sheet loading part, a ribbon loading part, a conveying part and an irradiation part; the sizing part is used to apply photosensitizer between predetermined auxiliary grid lines of battery sheets.
  • a row of glue dots is formed on the surface of the battery sheet.
  • the conveying part realizes the loading and unloading of the battery sheet.
  • the welding ribbon is fixed to the glue point row of the battery piece through the irradiation part, thereby completing the production of the battery string.
  • the battery string welding machine also includes a pressing and positioning part.
  • the pressing and positioning part is used to compress the stacked welding ribbon group and the battery sheet.
  • the pressing position of the pressing and positioning part is misaligned with the position of the photosensitive glue point. .
  • the pressing and positioning part realizes the pressing and positioning of the stacked welding strips and battery cells, avoiding the deviation of the welding strips during transportation.
  • the conveying part includes a conveying bearing part and a conveying driving part; the driving end of the conveying driving part is connected to the conveying bearing part, and the conveying driving part is used to drive the conveying bearing part to convey the welding ribbon group and the battery sheet, and the conveying bearing part is light-transmitting Material.
  • the conveying and carrying part realizes the carrying of the welding ribbon group and the battery sheet
  • the conveying driving part realizes the driving and conveying of the carrying part
  • the light-transmitting setting of the carrying part realizes the irradiation of the glue dot row on the side of the battery sheet facing the carrying part.
  • the irradiation part includes at least one of a first irradiation part and a second irradiation part; the first irradiation part is arranged above the conveying surface of the conveying bearing part at the welding station, and the first irradiation part is used for The row of glue dots on the front side of the cell is irradiated; the second irradiation section is arranged below the conveying surface of the conveyor bearing part at the welding station, and the second irradiation section is used to irradiate the row of glue dots on the back of the cell.
  • the irradiation of the glue dot row above the battery sheet is realized, and through the arrangement of the second irradiation part, the irradiation of the glue dot row on the back side of the battery sheet is realized.
  • the conveyor bearing part includes a conveyor belt and a conveyor bottom plate
  • the conveyor drive part includes a first drive device and a support roller set; the drive end of the first drive device is connected to the support roller set, and the first drive device is used to drive the support roller set.
  • Rotate the conveyor belt is set on the support roller set, and the conveyor belt rotates with the support roller set;
  • the conveyor bottom plate is set below the conveying surface of the conveyor belt, and the conveyor bottom plate is used to support the conveyor belt;
  • the conveyor belt is a light-transmitting belt, and the conveying bottom plate is light-transmitting plate.
  • the conveying bottom plate is provided to support the conveyor belt during transportation, and the first driving device and the support roller group are provided to realize the support and transportation of the conveyor belt.
  • the conveyanc belt as a light-transmitting belt and the conveying bottom plate as a light-transmitting plate, the penetration of the irradiation light from the irradiation part is achieved.
  • a first through hole is provided on the conveyor belt, and a negative pressure adsorption hole is provided on the conveyor bottom plate.
  • the negative pressure adsorption hole on the conveyor bottom plate adsorbs the battery piece to the conveyor belt through the first through hole on the conveyor belt.
  • the negative pressure adsorption hole on the adsorption bottom plate is realized to adsorb the battery piece tightly to the conveyor belt.
  • the conveying bearing part includes a supporting plate
  • the conveying driving part includes a second driving device; the driving end of the second driving device is connected to the supporting plate, and the second driving device is used to drive the supporting plate to move from the material receiving station. Go to the welding station; the supporting plate is used to carry the welding ribbon pack and battery cells; the supporting plate is a light-transmitting plate.
  • the setting of the supporting plate Through the setting of the supporting plate, the carrying of the welding ribbon group and the battery cells is realized. Through the setting of the driving part, the movement of the supporting plate is realized, thereby realizing the transportation of the welding ribbon group and the battery cells.
  • the setting of the carrying part is a light-transmitting plate. The transmission of the irradiation light from the irradiation part is realized.
  • the conveying part also includes a clamping device, and the supporting plate is provided with a second through hole for the clamping device to pass; the clamping device is used to clamp the welding ribbon group conveyed by the supporting plate and located below the battery sheet. On the back of the battery piece.
  • the welding ribbon group under the battery piece can be close to the battery piece when the irradiation part is irradiated, which improves the welding effect.
  • the pressing positioning part includes a mounting frame and a pressing pin row installed on the mounting frame.
  • the pressing pin rows are arranged corresponding to the welding ribbon groups, and each pressing pin row is used to compress one welding ribbon.
  • the battery string welding method includes:
  • the welding ribbon packs and battery sheets are welded and positioned together, thereby completing the production of battery strings.
  • stack the welding ribbon group and battery sheets according to predetermined rules including:
  • i is any natural number greater than 0. .
  • the welding ribbon group and the battery sheet according to predetermined rules, including: the battery sheet is a back-contact battery sheet, and the first half of the soldering ribbon group I is connected to the positive electrode glue point on the back of the I-1 battery sheet. Connect rows, the second half of the I group of soldering ribbons is connected to the row of negative electrode glue dots on the back of the I cell, and the first half of the I+1 group of soldering strips is connected to the positive electrode glue dots on the back of the I cell.
  • the second half of the I+1 group of soldering strips is connected to the row of negative electrode glue dots on the back of the I+1 cell sheet, I is any odd number greater than 0; or, connect the first half of the I+1 set of soldering strips
  • the second half of the welding strip of Group I is connected to the positive electrode glue dot row on the back of the I-1 cell. Connect the welding strip of Group I+1 to the positive electrode glue dot row on the back of the I-1 cell.
  • the first half of the welding ribbon is connected to the negative electrode glue dot row on the back of the I-th cell, and the second half of the I+1 group of solder ribbons is connected to the positive electrode glue dot row on the back of the I+1 cell. I is greater than 0 any odd number.
  • the battery string welding machine provided by this application realizes the formation of a row of glue points on the surface of the battery sheet through the setting of the gluing part, and realizes the loading and stacking of the welding ribbon group and the battery sheet through the battery sheet loading part and the welding ribbon loading part.
  • the battery sheets and welding ribbon groups are transported through the conveying part, and the welding ribbons are fixed to the glue dot rows of the battery sheets through the irradiation part, thereby completing the production of battery strings.
  • the battery string welding method provided by this application realizes the string welding production of battery sheets by applying photosensitive adhesive on the surface of the battery sheet and then stacking the welding ribbons using light.
  • Figure 1 is a top view of a battery string welding machine according to an optional embodiment of the present invention.
  • Figure 2 is a side view of Figure 1.
  • Figure 3 is a perspective view of a battery string welding machine according to an optional embodiment of the present invention.
  • FIG. 4 is a side cross-sectional view of FIG. 3 .
  • the invention is a battery string welding machine used for welding battery sheets without main grid.
  • the present invention provides a battery string welding machine in its first aspect.
  • the battery string welding machine includes a gluing section, a battery sheet loading section, a welding strip loading section, and a conveying section. 1 and the irradiation part;
  • the sizing part is used to apply photosensitive glue dots between the predetermined auxiliary grid lines of the battery sheet to form at least one row of glue dots on the surface of the battery sheet perpendicular to the length direction of the battery sheet auxiliary grid lines; battery sheet loading
  • the upper part is used to transport the battery sheets with glue dot rows to the material receiving station of the conveying part 1;
  • the upper part of the welding ribbon loading is used to provide the welding ribbon group 2 to the material receiving station of the conveying part 1;
  • the battery sheet loading part With the welding ribbon loading part, stack the welding ribbon group 2 and the battery cells to the material receiving station on the conveyor part 1 according to predetermined rules, and make the welding ribbons in the welding ribbon group 2 and the glue dots on the battery sheets line up one by one.
  • the conveying part 1 transports the stacked welding ribbon group 2 and battery chips to the irradiation part at the welding station; the irradiation part is used to irradiate the glue dot row to fix the welding ribbon group 2 to the battery chips.
  • a row of glue dots is formed on the surface of the battery sheet.
  • the loading and stacking of the welding ribbon group 2 and battery sheets are realized through the battery sheet loading part and the upper part of the welding ribbon.
  • the conveying part 1 realizes During the transportation of the battery sheets and the welding ribbon group 2, the welding ribbons are fixed to the glue dot rows of the battery sheets through the irradiation part, thus completing the production of the battery string.
  • the gluing part can use a nozzle to directly spray photosensitive glue dots between the predetermined negative grid lines of the cell, or use a nozzle to apply photosensitive glue dots.
  • screen printing can also be used. Apply dots of photosensitive glue.
  • photosensitive glue dots When applying photosensitive glue dots, you can apply them between each adjacent sub-grid lines, or you can apply one photosensitive glue dot between two sub-grid lines, or you can adjust the sub-grids with more spacing as needed. line to apply photosensitive glue dots.
  • the photosensitive glue dots are arranged into rows of glue dots along the direction perpendicular to the secondary grid lines of the cell. Multiple sets of parallel rows of glue dots can be applied to one cell.
  • Battery chip loading includes a manipulator.
  • the driving end of the manipulator is equipped with a suction cup for absorbing battery cells.
  • the manipulator drives the suction cup to adsorb and place the battery cells.
  • the ribbon loading part includes a ribbon loading moving device and a ribbon chuck.
  • the ribbon chuck is used to clamp the ribbon group 2.
  • the ribbon moving device is used to drive the ribbon chuck to clamp the ribbon and place it into the battery.
  • the soldering strips in soldering strip group 2 and the glue dot rows are placed in one-to-one correspondence.
  • the thickness of the glue dots is smaller than the diameter of the welding strips in the welding strip set 2.
  • the conveying part 1 transports the stacked welding ribbon group 2 and battery sheets to the irradiation part, and the irradiation part irradiates the glue dot rows of the battery sheets to solidify the glue dots, thereby bonding the welding ribbons and battery sheets together to form a battery. string.
  • the electrodes of the battery sheet are on two sides of the battery sheet, then when stacking the battery sheet and the welding ribbons, you need to place the first set of welding ribbons first, and then place the first set of welding ribbons on the other side of the first welding ribbon group. Place the first battery piece in the second half so that the glue dots on the back of the first battery piece correspond to the soldering ribbons one-to-one, and then place the second set of soldering strips so that the first half of the second set of soldering strips is placed on the front of the first battery piece.
  • the glue dot row formed by the glue dots applied between the negative electrode auxiliary grid lines on the back of the battery chip is the secondary electrode glue dot row.
  • the glue dot row applied between the positive and auxiliary grid lines of the battery sheet is the positive electrode glue dot row.
  • the conveying part 1 drives the stacked welding ribbon group 2 and battery chips to be transported to the irradiation part.
  • the irradiation part is arranged on the side of the conveying direction of the conveying part 1.
  • the irradiating part irradiates the battery chips transported by the transport part 1 to make the glue on the battery chips After the dot array is exposed to light and solidified, the welding ribbon group 2 and the battery sheets are connected together to form a battery string.
  • the photosensitive adhesive is ultraviolet light curing adhesive
  • the irradiation light of the irradiation part is ultraviolet light.
  • the battery string welding machine in order to better fit the welding ribbon to the battery sheet and avoid the displacement of the welding ribbon relative to the battery sheet during transportation, the battery string welding machine also includes a pressing positioning part 3.
  • the pressing positioning part 3 is used for In order to compress the stacked welding ribbon group 2 and the battery piece, and to prevent the pressing positioning part 3 from being blocked from light, the pressing position of the pressing positioning part 3 is misaligned with the position of the photosensitive glue dot.
  • the pressing and positioning part 3 is a tool that can be recycled.
  • the pressing and positioning part 3 is provided at the first section of the conveying part 1.
  • the battery chip loading part may also include a pressing and positioning gripper.
  • the tight positioning gripper is used to grab the battery sheet and the pressing positioning part 3 at the same time, so as to realize the loading of the pressing positioning part 3.
  • the pressing and positioning part 3 is conveyed by the conveying part 1 and moves to the irradiation part synchronously with the welding ribbon group 2 and the battery chip.
  • the pressing and positioning part realizes the pressing and positioning of the stacked welding strips and battery cells, avoiding the deviation of the welding strips during transportation.
  • the conveying part 1 includes a conveying bearing part and a conveying driving part; the driving end of the conveying driving part is connected to the conveying bearing part, and the conveying driving part is used to drive the conveying bearing part to convey the welding ribbon group 2 and the battery sheet.
  • the bearing part is made of translucent material.
  • the light-transmitting material of the transport carrying part can at least transmit ultraviolet light.
  • the material of the conveyor bearing part can be glass or acrylic.
  • the carrying part of the welding ribbon group 2 and the battery sheet is carried by the conveying and carrying part, the driving and conveying of the carrying part is carried out by the conveying driving part, and the light-transmitting setting of the carrying part realizes the irradiation of the glue dot row on the side of the cell sheet facing the carrying part. .
  • the irradiation part includes at least one of a first irradiation part 4 and a second irradiation part 5; the first irradiation part 4 is arranged above the conveying surface of the conveying load-bearing part at the welding station, and the The first irradiation section 4 is used to irradiate the glue dot row on the front side of the battery piece; the second irradiation section 5 is arranged below the conveying surface of the transport load-bearing part at the welding station, and the second irradiation section 5 is used to irradiate the glue spots on the back side of the battery piece. Click row.
  • the irradiation part When it is necessary to irradiate both sides of the battery piece, the irradiation part includes a first irradiation part 4 and a second irradiation part 5. When it is necessary to irradiate the top or bottom of the battery piece, the third irradiation part can be used as needed. One irradiation section 4 or a second irradiation section 5 .
  • Both the first irradiation part 4 and the second irradiation part 5 are ultraviolet lamps.
  • the arrangement of the first irradiation part 4 realizes the irradiation of the glue dot row above the battery piece, and the arrangement of the second irradiation part 5 realizes the irradiation of the glue dot row on the back side of the battery piece.
  • the conveyor bearing part includes a conveyor belt 6 and a conveyor bottom plate 7, and the conveyor drive part includes a first drive device and a support roller set; the drive end of the first drive device is connected to the support roller set, and the first drive device is To drive the support roller set to rotate, the conveyor belt 6 is set on the support roller set, and the conveyor belt 6 rotates with the support roller set; the conveyor bottom plate 7 is set below the conveyor surface of the conveyor belt 6, and the conveyor bottom plate 7 is used to support the conveyor belt 6;
  • the belt 6 is a light-transmitting belt
  • the conveying bottom plate 7 is a light-transmitting plate.
  • the conveyor belt 6 is a Teflon belt that can transmit ultraviolet light.
  • the arrangement of the conveyor belt 6 realizes the reception of the battery sheets and the welding ribbon group 2, the arrangement of the conveyor bottom plate 7 realizes the support of the conveyor belt 6 during the transportation process, and the arrangement of the first driving device and the support roller group realizes the transportation.
  • the support and transportation of the belt 6 realizes the penetration of the light irradiated by the irradiation part through the arrangement of the conveyor belt 6 as a light-transmitting belt and the conveying bottom plate 7 as a light-transmitting plate.
  • the conveyor belt 6 is provided with a first through hole
  • the conveyor bottom plate 7 is provided with a negative pressure adsorption hole.
  • the negative pressure adsorption hole on the conveyor bottom plate 7 passes through the first through hole on the conveyor belt 6 to The battery cells are adsorbed on the conveyor belt 6 .
  • the negative pressure adsorption hole on the adsorption bottom plate is realized to adsorb the battery piece tightly to the conveyor belt 6 .
  • the conveying bearing part includes a supporting plate 8, and the conveying driving part includes a second driving device; the driving end of the second driving device is connected to the supporting plate 8, and the second The driving device is used to drive the supporting plate 8 to move from the material receiving station to the welding station; the supporting plate 8 is used to carry the welding ribbon group 2 and the battery cells; the supporting plate 8 is a light-transmitting plate.
  • the setting of the supporting plate 8 realizes the carrying of the welding ribbon group 2 and the battery sheets.
  • the setting of the driving part realizes the movement of the supporting plate, thereby realizing the transportation of the welding ribbon group 2 and the battery sheets.
  • the carrying part is light-transmissive. The arrangement of the plate enables the transmission of light from the irradiation part.
  • the conveying part 1 also includes a clamping device 9, and the supporting plate 8 is provided with a second through hole 10 for the clamping device 9 to pass; the clamping device 9 is used to The welding ribbon group 2 conveyed by the supporting plate 8 and located below the battery piece is tightly pressed against the back side of the battery piece.
  • the tightening device 9 is an elastic ejector pin
  • the elastic ejector pin is installed on a lifting device.
  • the lifting device drives the elastic ejector pin to descend.
  • the lifting device drives the elastic ejector pin to rise.
  • the ejector pin elastically presses the welding ribbon against the back of the battery sheet, thus ensuring the close contact between the welding ribbon and the battery sheet during irradiation welding and improving the welding quality of the battery string.
  • the welding ribbon group 2 under the battery sheet can be close to the battery sheet when the irradiation part is irradiated, thereby improving the welding effect.
  • the pressing positioning part 3 includes a mounting frame and a pressing pin row 11 installed on the mounting frame.
  • the pressing pin row 11 is arranged corresponding to the welding ribbon group 2, and each pressing pin row 11 is used to press a root welding strip.
  • Each pressing pin row 11 contains at least two elastic pressing pins.
  • the battery string welding method includes:
  • the photosensitive adhesive used in this method is ultraviolet curable adhesive, and the light is ultraviolet light.
  • the battery cells and the ribbon group are welded and adhered into a battery string at low temperature, which reduces energy loss and can effectively avoid temperature damage to the battery cells during high-temperature welding. This effectively improves the quality of the produced battery strings.
  • the welding ribbon group 2 and the battery piece are welded and positioned together, thereby completing the battery string. Production.
  • the welding ribbon group 2 and the battery sheets are stacked according to predetermined rules, including:
  • i is any value greater than 0. A natural number.
  • a compression positioning part can be placed above the stacked welding ribbon group and battery cells to compress the welding ribbon group and battery cells together.
  • the pressing positioning part includes a frame and a pressing pin row installed on the frame. The pressing pin row is placed in one-to-one correspondence with the welding ribbons in the welding ribbon group.
  • the welding ribbon group 2 and battery sheets are stacked according to predetermined rules, including: the battery sheet is a back-contact battery sheet. Because the battery sheet is a back-contact battery sheet, the positive and negative electrodes of the battery sheet are integrated into On the back of the cell, when applying photosensitive glue, you only need to apply a positive electrode glue dot row between the negative grid lines corresponding to the positive electrode on the back of the cell, and apply negative electrode glue dots between the auxiliary grid lines corresponding to the negative electrode on the back of the cell. Electrode glue dot row.
  • the pressing positioning part includes a frame and a pressing pin row installed on the frame.
  • the pressing pin row is placed in one-to-one correspondence with the welding ribbons in the welding ribbon group.
  • the process of stacking the back-contact cells and the welding ribbon group includes: connecting the first half of the welding ribbon of group I to the positive electrode glue dot row on the back of the I-1 cell, and the second half of the welding ribbon of group I. Connect the first half of the welding strips of the I+1 group to the positive electrode glue dot row on the back of the I cell. The second half is connected to the negative electrode glue dot row on the back of the I+1 cell, I is any odd number greater than 0; or, the first half of the I group of solder ribbons is connected to the negative electrode glue dot row on the back of the I-1 cell.
  • the battery string welding machine provided by this application realizes the formation of a row of glue points on the surface of the battery sheet through the setting of the gluing part, and realizes the loading and unloading of the welding ribbon group 2 and the battery sheet through the battery sheet loading part and the welding ribbon loading part. After stacking, the battery sheets and the welding ribbon group 2 are transported through the conveying part 1, and the welding ribbons are fixed to the glue dot rows of the battery sheets through the irradiation part, thereby completing the production of the battery string.
  • the battery string welding method provided by this application realizes the string welding production of battery sheets by applying photosensitive adhesive on the surface of the battery sheet and then stacking the welding ribbons using light.

Abstract

本发明涉及一种电池串焊接机，该电池串焊接机包括施胶部、电池片上料部、焊带上料部、输送部和照射部；施胶部用于在电池片预定副栅线之间施加光敏胶点，以在电池片表面形成胶点排；电池片上料部用于将施加有胶点排的电池片搬运到输送部；焊带上料部用于向输送部的接料工位提供焊带组；输送部将叠放的焊带组和电池片向焊接工位处的照射部输送；照射部用于照射胶点排，以将焊带组固定到电池片上。通过施胶部的设置实现了在电池片的表面形成胶点排，通过电池片上料部和焊带上料部实现了焊带组和电池片的上料及叠放，通过输送部实现了电池片及焊带组的输送，通过照射部实现了将焊带固定到电池片的胶点排上，从而完成了电池串的生产。

Description

一种电池串焊接机及电池串焊接方法 技术领域
本发明涉及电池生产领域，具体地说是一种电池串焊接机及电池串焊接方法。
 背景技术
传统的电池串生产都是利用助焊剂在高温条件下将焊带和电池片焊接到一起。具体的步骤是：先在电池片或者焊带上涂抹助焊剂，然后将焊带和电池片叠放到一起，然后利用高温红外焊接装置加热将焊带表面的镀锡层融化焊接到电池片上印刷的银浆做成的主栅线上。
但是这种方式会耗费比较多的银浆，增加了电池组件的成本，同时银浆覆盖在电池片上减少了电池片的受光面积。影响了光伏组件的光电转换效率。
目前市场上出现了一种无主栅电池片，焊带直接与电池片的副栅线连接导电汇流。但是由于副栅线很细，焊带无法通过直接与副栅焊接从而连接到电池片上。
鉴于此，有必要开发一种专门用于实施该类焊接工艺的串焊机及串焊方法。
 发明内容
为了实现上述技术目标，本发明第一方面提供了一种电池串焊接机，该电池串焊接机能够实现无主栅电池片的串焊生产。其采用如下技术方案如下：
一种电池串焊接机，该电池串焊接机包括施胶部、电池片上料部、焊带上料部、输送部和照射部；施胶部用于在电池片预定副栅线之间施加光敏胶点，以在电池片表面形成至少一排与电池片副栅线长度方向垂直的胶点排；电池片上料部用于将施加有胶点排的电池片搬运到输送部的接料工位上；焊带上料部用于向输送部的接料工位提供焊带组；电池片上料部和焊带上料部将焊带组和电池片按照预定的规则叠放到输送部上的接料工位，并使得焊带组中的焊带和电池片上的胶点排一一对应放置；输送部将叠放的焊带组和电池片向焊接工位处的照射部输送；照射部用于照射胶点排，以将焊带组固定到电池片上。
通过施胶部的设置实现了在电池片的表面形成胶点排，通过电池片上料部和焊带上料部实现了焊带组和电池片的上料及叠放，通过输送部实现了电池片及焊带组的输送，通过照射部实现了将焊带固定到电池片的胶点排上，从而完成了电池串的生产。
可选地，电池串焊接机还包括压紧定位部，压紧定位部用于将叠放的焊带组和电池片压紧，压紧定位部的压紧位置与光敏胶点的位置错位设置。
通过压接定位部实现了叠放后焊带和电池片的压紧定位，避免了输送过程中焊带的偏移。
可选地，输送部包括输送承载部和输送驱动部；输送驱动部的驱动端与输送承载部连接，输送驱动部用于驱动输送承载部输送焊带组和电池片，输送承载部为透光材质。
通过输送承载部实现了焊带组和电池片的承载，通过输送驱动部实现了驱动输送承载部输送，通过承载部的透光设置实现了电池片面向承载部一侧的胶点排的照射。
可选地，照射部包括第一照射分部和第二照射分部中的至少一种；第一照射分部设置在焊接工位处输送承载部输送面的上方，第一照射分部用于照射电池片正面的胶点排；第二照射分部设置在焊接工位处输送承载部输送面的下方，第二照射分部用于照射电池片背面的胶点排。
通过第一照射分部的设置实现了对电池片上方的胶点排的照射，通过第二照射分部的设置实现了对电池片背面胶点排的照射。
可选地，输送承载部包括输送带及输送底板，输送驱动部包括第一驱动装置及支撑辊组；第一驱动装置的驱动端与支撑辊组连接，第一驱动装置用于驱动支撑辊组转动，输送带套装在支撑辊组上，输送带随支撑辊组转动；输送底板设置在输送带输送面的下方，输送底板用于支撑输送带；输送带为透光带，输送底板为透光板。
通过输送带的设置实现了电池片及焊带组的承接，通过输送底板的设置实现了对输送带输送过程中的支撑，通过第一驱动装置及支撑辊组的设置实现了输送带的支撑输送，通过输送带为透光带及输送底板为透光板的设置实现了照射部照射光线的穿透。
可选地，输送带上设置有第一通孔，输送底板上设置有负压吸附孔，输送底板上的负压吸附孔透过输送带上的第一通孔将电池片吸附在输送带上。
通过输送带上第一通孔的设置实现了吸附底板上负压吸附孔将电池片吸附贴紧到输送带上。
可选地，输送承载部包括承托板，输送驱动部包括第二驱动装置；第二驱动装置的驱动端与承托板连接，第二驱动装置用于驱动承托板从接料工位移动到焊接工位；承托板用于承载焊带组和电池片；承托板为透光板。
通过承托板的设置实现了焊带组及电池片的承载，通过驱动部的设置实现了承载板的移动，进而实现了焊带组及电池片的输送，通过承载部为透光板的设置实现了照射部照射光线的透过。
可选地，输送部还包括顶紧装置，承托板上设置有供顶紧装置通过的第二通孔；顶紧装置用于将承托板输送的位于电池片下方的焊带组顶紧在电池片背面。
通过顶紧装置的设置实现了电池片下方的焊带组在照射部照射的时候能够贴紧电池片，提升了焊接效果。
可选地，压紧定位部包括安装框架和安装在安装框架上的压针排，压针排与焊带组对应设置，每一个压针排用于压紧一根焊带。
通过压针排的设置实现了焊带更好的定位。
本申请另一方面提供了一种电池串焊接方法，该电池串焊接方法包括：
在电池片预定副栅线之间施加光敏胶，以在电池片表面形成至少一个与电池片副栅线长度方向垂直的胶点排；提供焊带组，焊带组中焊带的数量和胶点排的数量相同；将焊带组和电池片按照预定规则叠放，使得叠放后的焊带组中的焊带与电池片上的胶点排一一对应；对叠放到一起的电池片和焊带组光照，以使得焊带组和电池片上的胶点排粘连到一起，形成电池串。
通过使电池片上胶点排与焊带组叠，然后对叠放到一起的焊带组和电池片进行光照实现了焊带组和电池片焊接定位到一起，进而完成了电池串的生产。
可选地，将焊带组和电池片按照预定规则叠放，包括：
将第i个电池片叠放于第i个焊带组的后半段上，将第i+1个焊带组的前半段叠放于第i个电池片上， i为大于0的任一自然数。
可选地，将焊带组和电池片按照预定规则叠放，包括：电池片为背接触电池片，将第I组焊带的前半段与第I-1片电池片背面的正电极胶点排连接，第I组焊带的后半段与第I片电池片背面的负电极胶点排连接，将第I+1组焊带的前半段与第I片电池片背面的正电极胶点排连接，第I+1组焊带的后半段与第I+1片电池片背面的负电极胶点排连接，I为大于0的任一奇数；或者，将第I组焊带的前半段与第I-1片电池片背面的负电极胶点排连接，第I组焊带的后半段与第I片电池片背面的正电极胶点排连接，将第I+1组焊带的前半段与第I片电池片背面的负电极胶点排连接，第I+1组焊带的后半段与第I+1片电池片背面的正电极胶点排连接，I为大于0的任一奇数。
本申请提供的电池串焊接机，通过施胶部的设置实现了在电池片的表面形成胶点排，通过电池片上料部和焊带上料部实现了焊带组和电池片的上料及叠放，通过输送部实现了电池片及焊带组的输送，通过照射部实现了将焊带固定到电池片的胶点排上，从而完成了电池串的生产。另一方面本申请提供的电池串焊接方法，通过在电池片表面施加光敏胶然后叠放焊带，利用光照的方式实现了电池片的串焊生产。
 附图说明
图1为本发明中的一种可选实施例的电池串焊接机的俯视图。
图2为图1的侧视图。
图3为本发明中的一种可选实施例的电池串焊接机立体视图。
图4为图3的侧面剖视图。
其中附图标记如下：
1、输送部；2、焊带组；3、压紧定位部；4、第一照射分部；5、第二照射分部；6、输送带；7、输送底板；8、承托板；9、顶紧装置；10、第二通孔；11压针排。
 实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
本发明是一种电池串焊接机，用于无主栅电池片的焊接。
如图1、图2和图3所示，本发明是第一方面提供了一种电池串焊接机，该电池串焊接机包括施胶部、电池片上料部、焊带上料部、输送部1和照射部；施胶部用于在电池片预定副栅线之间施加光敏胶点，以在电池片表面形成至少一排与电池片副栅线长度方向垂直的胶点排；电池片上料部用于将施加有胶点排的电池片搬运到输送部1的接料工位上；焊带上料部用于向输送部1的接料工位提供焊带组2；电池片上料部和焊带上料部将焊带组2和电池片按照预定的规则叠放到输送部1上的接料工位，并使得焊带组2中的焊带和电池片上的胶点排一一对应放置；输送部1将叠放的焊带组2和电池片向焊接工位处的照射部输送；照射部用于照射胶点排，以将焊带组2固定到电池片上。
通过施胶部的设置实现了在电池片的表面形成胶点排，通过电池片上料部和焊带上料部实现了焊带组2和电池片的上料及叠放，通过输送部1实现了电池片及焊带组2的输送，通过照射部实现了将焊带固定到电池片的胶点排上，从而完成了电池串的生产。
在一种实现方式中，施胶部可以采用喷头直接向电池片预定的负栅线之间喷涂光敏胶点，或者用喷头点胶的方式施加光敏胶点，当然也可以采用丝网印刷的方式涂光敏胶点。
在涂光敏胶点的时候可以在每个相邻的副栅线之间都施加，也可以没间隔两个副栅线施加一个光敏胶点，或者也可以根据需要来调整间距更多的副栅线来施加光敏胶点。光敏胶点沿着与电池片副栅线垂直的方向排布成胶点排，一个电池片上可以施加有多组相互平行的胶点排。
电池片上料包括机械手，机械手的驱动端安装有用于吸附电池片的吸盘，机械手通过带动吸盘来实现电池片吸附及放置。
焊带上料部包括焊带上料移动装置及焊带夹头，焊带夹头用于夹持焊带组2，焊带移动装置用于带动焊带夹头夹持焊带并放置到电池片上，使得焊带组2中的焊带与胶点排一一对应放置。为了避免电池片放置到输送部1的时候胶点粘污输送部1，胶点的厚度小于焊带组2中焊带的直径。
输送部1将叠放的焊带组2和电池片输送到照射部，照射部对着电池片的胶点排处进行照射，使得胶点固化，从而将焊带和电池片粘连到一起形成电池串。
在一种实现方式中，如果电池片的电极分别在电池片的两个面，那么在将电池片和焊带叠放的时候需要先放置第一组焊带，然后在第一焊带组的后半段放置第一电池片，使得第一电池片的背面胶点排与焊带一一对应，然后在放置第二组焊带使得第二组焊带的前半段放置在第一电池片正面并且与第一电池片正面的胶点排一一对应，然后在第二组焊带的后半段上放置第二电池片，使得第二电池片背面的胶点排与第二组焊带一一对应，如此往复，直至放置到尾部电池片，然后在尾部电池片上放置尾部焊带组，使得尾部焊带组的前半段与尾部电池片上的胶点排一一对应放置。
如果电池片是背接触电池片，即焊带的正负极都在电池片的背面，则在电池片的背面负极副栅线之间施加的胶点构成的胶点排为副电极胶点排，在电池片正极副栅线之间施加的胶点排为正电极胶点排，在排布的时候，需要先将电池片背面向上排布在输送部1上，然后在电池片上放置焊带组，焊带组的一段连接与之相邻的电池片的副电极胶点排，焊带组的另一段连接与之相邻的另一电池片的正电极胶点排。当然也可以现在输送部1上排布焊带，然后再讲电池片背面向下放置在焊带上，使得焊带组的一段连接与之相邻的电池片的副电极胶点排，焊带组的另一段连接与之相邻的另一电池片的正电极胶点排。
然后输送部1带动叠放后的焊带组2及电池片输送到照射部，照射部设置在输送部1输送方向的侧边，照射部向输送部1输送的电池片上照射使得电池片上的胶点排受光照之后固化将焊带组2和电池片连接到一起从而形成电池串。
在一种实现方式中，光敏胶为紫外光固化胶，照射部的照射光为紫外光。通过照射部的设置实现了低温将电池片和焊带组连接成串，降低了能量损耗的同时，也避免了高温对电池片带来的损伤。
在一种实现方式中，为了实现将焊带更好的与电池片贴合，避免输送过程中焊带相对电池片位移，电池串焊接机还包括压紧定位部3，压紧定位部3用于将叠放的焊带组2和电池片压紧，同时为了避免压紧定位部3遮光，压紧定位部3的压紧位置与光敏胶点的位置错位设置。
在一种实现方式中，压紧定位部3是一种可以循环使用的工装，压紧定位部3设置在输送部1的首段，电池片上料部上也可以包括压紧定位抓手，压紧定位抓手用于同时抓取电池片和压紧定位部3，从而实现压紧定位部3的上料。压紧定位部3在输送部1的输送下与焊带组2和电池片同步移动到照射部。
通过压接定位部实现了叠放后焊带和电池片的压紧定位，避免了输送过程中焊带的偏移。
在一种实现方式中，输送部1包括输送承载部和输送驱动部；输送驱动部的驱动端与输送承载部连接，输送驱动部用于驱动输送承载部输送焊带组2和电池片，输送承载部为透光材质。
具体的，输送承载部的透光材质至少可以透过紫外光。输送承载部的材质可以为玻璃或者亚克力材质。
通过输送承载部实现了焊带组2和电池片的承载，通过输送驱动部实现了驱动输送承载部输送，通过承载部的透光设置实现了电池片面向承载部一侧的胶点排的照射。
在一种实现方式中，照射部包括第一照射分部4和第二照射分部5中的至少一种；第一照射分部4设置在焊接工位处输送承载部输送面的上方，第一照射分部4用于照射电池片正面的胶点排；第二照射分部5设置在焊接工位处输送承载部输送面的下方，第二照射分部5用于照射电池片背面的胶点排。
当需要对电池片的两个面照射的时候，照射部包括第一照射分部4和第二照射分部5，当紧需要照射电池片的上面或者下面的时候，则可以根据需要紧采用第一照射分部4或者第二照射分部5。
第一照射分部4和第二照射分部5都为紫外光灯。
通过第一照射分部4的设置实现了对电池片上方的胶点排的照射，通过第二照射分部5的设置实现了对电池片背面胶点排的照射。
在一种实现方式中，输送承载部包括输送带6及输送底板7，输送驱动部包括第一驱动装置及支撑辊组；第一驱动装置的驱动端与支撑辊组连接，第一驱动装置用于驱动支撑辊组转动，输送带6套装在支撑辊组上，输送带6随支撑辊组转动；输送底板7设置在输送带6输送面的下方，输送底板7用于支撑输送带6；输送带6为透光带，输送底板7为透光板。
    在一种实现方式中，输送带6为可透过紫外光的特氟龙皮带。
通过输送带6的设置实现了电池片及焊带组2的承接，通过输送底板7的设置实现了对输送带6输送过程中的支撑，通过第一驱动装置及支撑辊组的设置实现了输送带6的支撑输送，通过输送带6为透光带及输送底板7为透光板的设置实现了照射部照射光线的穿透。
在一种实现方式中，输送带6上设置有第一通孔，输送底板7上设置有负压吸附孔，输送底板7上的负压吸附孔透过输送带6上的第一通孔将电池片吸附在输送带6上。
通过输送带6上第一通孔的设置实现了吸附底板上负压吸附孔将电池片吸附贴紧到输送带6上。
在一种实现方式中，如图3和图4所示，输送承载部包括承托板8，输送驱动部包括第二驱动装置；第二驱动装置的驱动端与承托板8连接，第二驱动装置用于驱动承托板8从接料工位移动到焊接工位；承托板8用于承载焊带组2和电池片；承托板8为透光板。
通过承托板8的设置实现了焊带组2及电池片的承载，通过驱动部的设置实现了承载板的移动，进而实现了焊带组2及电池片的输送，通过承载部为透光板的设置实现了照射部照射光线的透过。
在一种实现方式中，如图4所示，输送部1还包括顶紧装置9，承托板8上设置有供顶紧装置9通过的第二通孔10；顶紧装置9用于将承托板8输送的位于电池片下方的焊带组2顶紧在电池片背面。
在一种实现方式中，顶紧装置9为弹性顶针，弹性顶针安装在升降装置上，当不需要工作的时候升降装置带动弹性顶针下降，当需要照射焊接的时候，升降装置带动弹性顶针上升，顶针将焊带弹性压紧在电池片的背面上，从而保证了在照射焊接的时候，焊带与电池片的贴紧，提升了电池串的焊接质量。
通过顶紧装置9的设置实现了电池片下方的焊带组2在照射部照射的时候能够贴紧电池片，提升了焊接效果。
在一种实现方式中，压紧定位部3包括安装框架和安装在安装框架上的压针排11，压针排11与焊带组2对应设置，每一个压针排11用于压紧一根焊带。
每个压针排11内包含至少两个弹性压针。
通过压针排11的设置实现了焊带更好的定位。
本申请另一方面提供了一种电池串焊接方法，该电池串焊接方法包括：
在电池片预定副栅线之间施加光敏胶，以在电池片表面形成至少一个与电池片副栅线长度方向垂直的胶点排；提供焊带组2，焊带组2中焊带的数量和胶点排的数量相同；将焊带组2和电池片按照预定规则叠放，使得叠放后的焊带组2中的焊带与电池片上的胶点排一一对应；对叠放到一起的电池片和焊带组2光照，以使得焊带组2和电池片上的胶点排粘连到一起，形成电池串。
在一种实现方式中，本方法中采用的光敏胶为紫外光固化胶，光照为紫外光。通过紫外光固话胶及紫外光的设置实现了电池片和焊带组低温焊接粘连成电池串，降低了能量损耗，且能有效避免高温焊接时温度对电池片带来的损伤。有效的提升了生产出来的电池串的质量。
通过使电池片上胶点排与焊带组2叠，然后对叠放到一起的焊带组2和电池片进行光照实现了焊带组2和电池片焊接定位到一起，进而完成了电池串的生产。
在一种实现方式中，将焊带组2和电池片按照预定规则叠放，包括：
将第i个电池片叠放于第i个焊带组2的后半段上，将第i+1个焊带组2的前半段叠放于第i个电池片上， i为大于0的任一自然数。
为了保证压紧的效果，可以在叠放完的焊带组和电池片上方放置压紧定位部，以将焊带组和电池片压紧到一起。压紧定位部包括框架和安装在框架上的压针排，压针排与焊带组中的焊带一一对应放置。
在一种实现方式中，将焊带组2和电池片按照预定规则叠放，包括：电池片为背接触电池片，因为电池片为背接触电池片，所以电池片的正极和负极都整合到电池片的背面，因此在施加光敏胶水的时候，只需要在电池片的背面正极对应的负栅线之间施加正电极胶点排，在电池片的背面负极对应的副栅线之间施加负电极胶点排。
在焊带组和背接触电池片叠放的时候可以先放焊带组再放电池片，最后在电池片的上方放置压紧定位部将焊带组和电池片压紧定位到一起；也可以先放电池片再放焊带组，然后放置压紧定位部将焊带组和电池片压紧到一起。
压紧定位部包括框架和安装在框架上的压针排，压针排与焊带组中的焊带一一对应放置。
在将背接触电池片和焊带组叠放的过程包括：将第I组焊带的前半段与第I-1片电池片背面的正电极胶点排连接，第I组焊带的后半段与第I片电池片背面的负电极胶点排连接，将第I+1组焊带的前半段与第I片电池片背面的正电极胶点排连接，第I+1组焊带的后半段与第I+1片电池片背面的负电极胶点排连接，I为大于0的任一奇数；或者，将第I组焊带的前半段与第I-1片电池片背面的负电极胶点排连接，第I组焊带的后半段与第I片电池片背面的正电极胶点排连接，将第I+1组焊带的前半段与第I片电池片背面的负电极胶点排连接，第I+1组焊带的后半段与第I+1片电池片背面的正电极胶点排连接，I为大于0的任一奇数。
本申请提供的电池串焊接机，通过施胶部的设置实现了在电池片的表面形成胶点排，通过电池片上料部和焊带上料部实现了焊带组2和电池片的上料及叠放，通过输送部1实现了电池片及焊带组2的输送，通过照射部实现了将焊带固定到电池片的胶点排上，从而完成了电池串的生产。另一方面本申请提供的电池串焊接方法，通过在电池片表面施加光敏胶然后叠放焊带，利用光照的方式实现了电池片的串焊生产。
上文对本发明进行了足够详细的具有一定特殊性的描述。所属领域内的普通技术人员应该理解，实施例中的描述仅仅是示例性的，在不偏离本发明的真实精神和范围的前提下做出所有改变都应该属于本发明的保护范围。本发明所要求保护的范围是由的权利要求书进行限定的，而不是由实施例中的上述描述来限定的。

Claims (12)

  1. 一种电池串焊接机，其特征在于，所述电池串焊接机包括施胶部、电池片上料部、焊带上料部、输送部和照射部；
    所述施胶部用于在电池片预定副栅线之间施加光敏胶点，以在电池片表面形成至少一排与电池片副栅线长度方向垂直的胶点排；
    所述电池片上料部用于将施加有胶点排的所述电池片搬运到所述输送部的接料工位上；
    所述焊带上料部用于向所述输送部的所述接料工位提供焊带组；
    所述电池片上料部和所述焊带上料部将所述焊带组和所述电池片按照预定的规则叠放到所述输送部上的所述接料工位，并使得所述焊带组中的焊带和所述电池片上的胶点排一一对应放置；
    所述输送部将叠放的所述焊带组和所述电池片向焊接工位处的所述照射部输送；
    所述照射部用于照射所述胶点排，以将所述焊带组固定到所述电池片上。
  2.  如权利要求1所述的电池串焊接机，其特征在于，所述电池串焊接机还包括压紧定位部，
    所述压紧定位部用于将叠放的所述焊带组和所述电池片压紧，
    所述压紧定位部的压紧位置与所述光敏胶点的位置错位设置。
  3.  如权利要求1所述的电池串焊接机，其特征在于，所述输送部包括输送承载部和输送驱动部；
    所述输送驱动部的驱动端与所述输送承载部连接，所述输送驱动部用于驱动所述输送承载部输送所述焊带组和所述电池片，
    所述输送承载部为透光材质。
  4.  如权利要求3所述的电池串焊接机，其特征在于，所述照射部包括第一照射分部和第二照射分部中的至少一种；
    所述第一照射分部设置在所述焊接工位处所述输送承载部输送面的上方，所述第一照射分部用于照射所述电池片正面的胶点排；
    所述第二照射分部设置在所述焊接工位处所述输送承载部输送面的下方，所述第二照射分部用于照射所述电池片背面的所述胶点排。
  5.  如权利要求3所述的电池串焊接机，其特征在于，所述输送承载部包括输送带及输送底板，所述输送驱动部包括第一驱动装置及支撑辊组；
    所述第一驱动装置的驱动端与所述支撑辊组连接，所述第一驱动装置用于驱动所述支撑辊组转动，
    所述输送带套装在所述支撑辊组上，所述输送带随所述支撑辊组转动；
    所述输送底板设置在所述输送带输送面的下方，所述输送底板用于支撑所述输送带；
    所述输送带为透光带，所述输送底板为透光板。
  6.  如权利要求5所述的电池串焊接机，其特征在于，
    所述输送带上设置有第一通孔，所述输送底板上设置有负压吸附孔，所述输送底板上的负压吸附孔透过所述输送带上的所述第一通孔将所述电池片吸附在所述输送带上。
  7.  如权利要求3所述的电池串焊接机，其特征在于，所述输送承载部包括承托板，所述输送驱动部包括第二驱动装置；
    所述第二驱动装置的驱动端与所述承托板连接，所述第二驱动装置用于驱动所述承托板从所述接料工位移动到所述焊接工位；
    所述承托板用于承载所述焊带组和所述电池片；
    所述承托板为透光板。
  8.  如权利要求7所述的电池串焊接机，其特征在于，所述输送部还包括顶紧装置，所述承托板上设置有供所述顶紧装置通过的第二通孔；
    所述顶紧装置用于将所述承托板输送的位于电池片下方的焊带组顶紧在所述电池片背面。
  9.  如权利要求2所述的电池串焊接机，其特征在于，所述压紧定位部包括安装框架和安装在所述安装框架上的压针排，
    所述压针排与所述焊带组对应设置，每一个压针排用于压紧一根焊带。
  10.  一种电池串焊接方法，其特征在于，所述电池串焊接方法包括：
    在电池片预定副栅线之间施加光敏胶，以在电池片表面形成至少一个与电池片副栅线长度方向垂直的胶点排；
    提供焊带组，焊带组中焊带的数量和胶点排的数量相同；
    将焊带组和电池片按照预定规则叠放，使得叠放后的焊带组中的焊带与电池片上的胶点排一一对应；
    对叠放到一起的电池片和焊带组光照，以使得焊带组和电池片上的胶点排粘连到一起，形成电池串。
  11.  根据权利要求10所述的电池串焊接方法，其特征在于，所述将焊带组和电池片按照预定规则叠放，包括：
    将第i个电池片叠放于第i个焊带组的后半段上，将第i+1个焊带组的前半段叠放于第i个电池片上， i为大于0的任一自然数。
  12.  根据权利要求10所述的电池串焊接方法，其特征在于，所述将焊带组和电池片按照预定规则叠放，包括：所述电池片为背接触电池片，
    将第I组焊带的前半段与第I-1片电池片背面的正电极胶点排连接，第I组焊带的后半段与第I片电池片背面的负电极胶点排连接，
    将第I+1组焊带的前半段与第I片电池片背面的正电极胶点排连接，第I+1组焊带的后半段与第I+1片电池片背面的负电极胶点排连接，I为大于0的任一奇数；
    或者，
    将第I组焊带的前半段与第I-1片电池片背面的负电极胶点排连接，第I组焊带的后半段与第I片电池片背面的正电极胶点排连接，
    将第I+1组焊带的前半段与第I片电池片背面的负电极胶点排连接，第I+1组焊带的后半段与第I+1片电池片背面的正电极胶点排连接，I为大于0的任一奇数。
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