CN117012858B - Method and equipment for repairing laminated battery string - Google Patents
Method and equipment for repairing laminated battery string Download PDFInfo
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- CN117012858B CN117012858B CN202311246561.5A CN202311246561A CN117012858B CN 117012858 B CN117012858 B CN 117012858B CN 202311246561 A CN202311246561 A CN 202311246561A CN 117012858 B CN117012858 B CN 117012858B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003466 welding Methods 0.000 claims abstract description 153
- 239000002313 adhesive film Substances 0.000 claims abstract description 149
- 230000008439 repair process Effects 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 230000002950 deficient Effects 0.000 claims description 64
- 238000003825 pressing Methods 0.000 claims description 45
- 230000007246 mechanism Effects 0.000 claims description 43
- 229910000679 solder Inorganic materials 0.000 claims description 41
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 14
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000003028 elevating effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Primary Cells (AREA)
Abstract
The invention relates to the technical field of solar string repair, in particular to a method and equipment for repairing a coated battery string. The invention provides a method for repairing a laminated battery string, which comprises the following steps: firstly heating an adhesive film adhered to the bad battery piece, reducing the adhesion of the adhesive film, and drawing out a welding belt connected with the bad battery piece; then, removing the bad battery piece and the adhesive film adhered with the bad battery piece, and paving a new adhesive film, a new battery piece and a welding strip according to the laminated battery string structure, so that the welding strip is positioned between the new battery piece and the new adhesive film; and finally, heating the new adhesive film to adhere the new adhesive film and the new battery piece, and finishing the repair of the laminated battery string. The new battery piece and the new adhesive film are used for replacing the bad battery piece and the adhesive film adhered with the bad battery piece, so that the quality of the film-covered battery string after repairing is ensured. The coated battery string repairing device provided by the invention has the beneficial effects as well as makes up the blank of coated battery string repairing devices in the market by applying the coated battery string repairing method.
Description
Technical Field
The invention relates to the technical field of solar string repair, in particular to a method and equipment for repairing a coated battery string.
Background
In the laminated battery string, one or both sides of each battery piece are connected with a welding strip and an adhesive film, two adjacent battery pieces are connected by using a group of welding strips, and the adhesive film is adhered to the battery piece after being heated so as to fix the welding strips and the battery piece.
As the cost of the adhesive film decreases and the technology without the main grid becomes mature, the laminated battery string is accepted by the market more and more. At present, the yield of the laminated battery strings produced by the battery string production equipment cannot reach 100%, defective battery pieces exist in the produced individual laminated battery strings, and the laminated battery strings need to be repaired and used continuously. However, the existing battery string repairing technology only performs repairing on a conventional battery string formed by high-temperature welding of a welding strip and a battery piece or connecting the battery piece and the battery piece through conductive adhesive. For example, patent CN112975025a discloses a welding method and device for repairing solar cell strings, which are suitable for repairing conventional cell strings formed by welding a welding strip and a cell sheet at high temperature; patent CN210628337U discloses an automatic repair device for a laminated tile battery string, which is suitable for repairing battery pieces and connecting the battery pieces through conductive adhesive to form a conventional battery string.
Therefore, for the laminated battery strings with defective battery sheets, it is necessary to propose a laminated battery string repairing method and repairing equipment to make up for the market gap.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for repairing a laminated battery string and a confluence welding device.
In order to achieve the above object, the present invention provides the following solutions:
in a first aspect, the present invention provides a method for repairing a laminated battery string, comprising the steps of:
s1, heating an adhesive film adhered to a defective battery piece, and horizontally moving battery string segments on two sides of the defective battery piece to enable two groups of welding strips connected with the defective battery piece to be pulled out;
s2, removing the bad battery piece and the adhesive film adhered with the bad battery piece;
s3, paving a new adhesive film, a new battery piece and the welding strip according to a laminated battery string structure, so that the welding strip is positioned between the new battery piece and the new adhesive film;
and S4, heating the new adhesive film to adhere the new adhesive film and the new battery piece.
Optionally, the solder strip is guided to move in its axial direction during the solder strip is drawn out.
Optionally, in step S3, a first piece of the new adhesive film is laid first, and a portion of the new adhesive film corresponding to the free end of the solder strip is bent downward, so as to form a planar portion and a non-planar portion.
Optionally, after the new adhesive film is laid, a first battery string segment is moved, and simultaneously, the free ends of the first group of welding strips are clamped and controlled, the first group of welding strips are laid on the plane part, then the new battery piece is laid on the plane part to press the first group of welding strips on the plane part, and the non-plane part is restored to a horizontal state.
Optionally, after the new battery piece is laid, moving a second battery string segment, clamping and controlling the free ends of the second group of welding strips, lifting the free ends of the second group of welding strips after the second group of welding strips are positioned above the new battery piece, laying a second piece of new adhesive film, and pressing the second piece of new adhesive film part corresponding to the non-free ends and the free ends of the second group of welding strips in sequence.
Optionally, after the new adhesive film is laid, a first battery string segment is moved, and simultaneously, a first group of free ends of the welding strips are clamped and controlled, after the first group of the welding strips are laid on the plane part, a second battery string segment is moved, and simultaneously, a second group of the free ends of the welding strips are clamped and controlled, the second group of the welding strips and the first group of the welding strips are crossed and laid on the plane part, and finally, the new battery piece is laid on the plane part to press two groups of the welding strips on the plane part, and the non-plane part is restored to a horizontal state.
Optionally, when the two groups of welding strips are drawn out, the adhesive film part between the defective battery piece or the welding strip above the defective battery piece is pressed and fixed, or the adhesive film below the defective battery piece is adsorbed and fixed.
Optionally, when the defective battery piece is not at the end of the laminated battery string, after pressing the battery piece or the adhesive film close to the defective battery piece in the battery string segment, the battery string segment is moved.
Optionally, when the defective battery piece is located at the end of the laminated battery string, if the first battery string segment only includes the first group of welding strips, the first group of welding strips are clamped to extend out of the end of the adhesive film, and after the adhesive film close to the defective battery piece in the second battery string segment is pressed, the two battery string segments are moved; if the second battery string segment only comprises a second group of welding strips, the second group of welding strips are clamped to extend out of the end part of the adhesive film, and after the adhesive film close to the bad battery piece in the first battery string segment is pressed, the two battery string segments are moved.
In a second aspect, the invention provides a coated battery string repairing device, which is applied to the coated battery string repairing method and comprises a carrying mechanism, a heating element, a workbench, a mobile station and a first auxiliary mechanism; the carrying mechanism is used for paving the new adhesive film and the new battery piece on the workbench and removing the bad battery piece; the heating element is arranged above the workbench and/or on the workbench; the mobile station is provided with two battery string segments and is positioned at two sides of the workbench and used for respectively bearing the two battery string segments far away from or near the workbench; the first auxiliary mechanism comprises a group of first clamps for clamping the free ends of the welding strips.
Optionally, the device for repairing the laminated battery string further comprises a comb plate arranged below the two mobile stations in a lifting manner, the comb plate is close to the workbench, and tooth grooves are formed in the tops of the comb plate.
Optionally, the workbench comprises a first supporting table and a second supporting table; the second supporting table is provided with one or two supporting tables, the two supporting tables are arranged on one side or two sides of the first supporting table, and the second supporting table can move up and down or rotate relative to the first supporting table.
Optionally, a second auxiliary mechanism capable of lifting is further arranged above the workbench, and one or two pressing tools are arranged at the bottom of the second auxiliary mechanism; when the number of the pressing devices is two, one pressing device can move up and down or rotate relative to the other pressing device.
Optionally, two second supporting tables are provided, and a second clamp capable of lifting is further arranged below each second supporting table.
Optionally, two first auxiliary mechanisms are provided, and an elastic pressing plate is further provided at the bottom of each first auxiliary mechanism, where the elastic pressing plate is used to press the battery piece or the adhesive film, which is close to the defective battery piece, in the battery string segment.
Optionally, the mobile station includes elevating platform and horizontal movable platform, the elevating platform set up in one side of horizontal movable platform and along with horizontal movable platform horizontal movement, the elevating platform is located horizontal movable platform with between the workstation, the elevating platform can go up and down to remove and can press from both sides the end of the welding strip at tectorial membrane battery cluster both ends.
Compared with the prior art, the invention has the following technical effects:
according to the method for repairing the laminated battery string, firstly, the adhesive film adhered to the bad battery piece is heated, the adhesion of the adhesive film is reduced, and the welding strip connected with the bad battery piece is pulled out; then, removing the bad battery piece and the adhesive film adhered with the bad battery piece, and paving a new adhesive film, a new battery piece and a welding strip according to the laminated battery string structure, so that the welding strip is positioned between the new battery piece and the new adhesive film; and finally, heating the new adhesive film to adhere the new adhesive film and the new battery piece, and finishing the repair of the laminated battery string. The welding strip is kept complete after being drawn out, so that the aesthetic property of the film-covered battery string after repair is ensured; the new battery piece and the new adhesive film are used for replacing the bad battery piece and the adhesive film adhered with the bad battery piece, so that the quality of the film-covered battery string after repairing is ensured.
The coated battery string repairing device provided by the invention has the beneficial effects as well as makes up the blank of coated battery string repairing devices in the market by applying the coated battery string repairing method.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for repairing a coated battery string according to the present invention;
FIG. 2 is a schematic diagram of a first type of laminated battery string according to the present invention;
FIG. 3 is a schematic diagram showing a state of the first laminated battery string according to the present invention after two sets of solder strips on both sides of a defective battery sheet are pulled out;
FIG. 4 is a schematic diagram showing a state in which a first welding strip is laid on a first new adhesive film in a first laminated battery string according to the present invention;
FIG. 5 is a schematic diagram showing a state in which a second solder strip is laid on a new battery piece in a first laminated battery string according to the present invention;
FIG. 6 is a schematic diagram showing a state in which a second new adhesive film is laid on a second assembly welding strip in the first laminated battery string;
FIG. 7 is a schematic diagram showing a layout manner of a first solder strip in a first laminated battery string according to the present invention;
FIG. 8 is a schematic diagram of a layout of a second solder strip in a first type of laminated battery string according to the present invention;
FIG. 9 is a schematic diagram showing a state of the first laminated battery string after the second new adhesive film is laid;
FIG. 10 is a schematic diagram of a second type of laminated battery string according to the present invention;
FIG. 11 is a schematic diagram of a second embodiment of the present invention after two solder strips on the back of a defective battery are pulled out from a battery string;
FIG. 12 is a schematic diagram showing a second embodiment of a laminated battery string of the present invention in which two sets of solder strips are laid on a first new adhesive film;
fig. 13 is a schematic diagram showing a state in which new battery pieces are laid on two sets of welding strips in a second laminated battery string according to the present invention;
FIG. 14 is a schematic diagram showing a layout of a first solder strip in a second type of laminated battery string according to the present invention;
FIG. 15 is a schematic diagram showing a layout manner of a second solder strip in a second type of laminated battery string according to the present invention;
FIG. 16 is a schematic view of the present invention after the new battery plate is laid;
FIG. 17 is a top view of the coated battery string repair apparatus of the present invention;
FIG. 18 is a side view showing a partial structure of one embodiment of the film covered battery string repairing apparatus of the present invention;
fig. 19 is a side view showing a partial structure of another embodiment of the film covered battery string repairing apparatus of the present invention.
Wherein: 1. a carrying mechanism; 2. a work table; 21. a first support table; 22. a second support table; 3. a mobile station; 31. a lifting table; 32. a horizontal movable table; 4. a first auxiliary mechanism; 41. a first moving frame; 42. a first clamp; 43. an elastic pressing plate; 5. a second auxiliary mechanism; 51. a second moving frame; 52. a press; 521. a first presser; 522. a second presser; 53. elastic pressing needle; 6. carding plates; 7. a second clamp; 8. a magazine; 100. a string of film-coated cells; 110. a battery sheet; 111. poor battery pieces; 112. a new battery piece; 120. welding a belt; 130. an adhesive film; 131. a new adhesive film; 140. battery string segments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art based on the embodiments of the invention without any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The film-covered battery string 100 has a film, which may be an EVA film, a PO film, a PVE film, or other films having adhesion when heated.
In the present invention, the structure of the first type of laminated battery string 100 is shown in fig. 2, which shows the back surface of the first type of laminated battery string 100, including the battery sheet 110, the solder tape 120 and the adhesive film 130. The front and back sides of two adjacent battery plates 110 are connected by using the same assembly welding strip 120, the two sides of the battery plates 110 are adhered with the adhesive film 130, and the welding strips 120 on the two sides of the battery plates 110 are located between the battery plates 110 and the adhesive film 130. The materials of the adhesive films 130 on the two sides of the battery piece 110 are the same or different.
In the present invention, the structure of the second type of laminated battery string 100 is shown in fig. 10, which shows the back surface of the second type of laminated battery string 100, including the battery sheet 110, the solder tape 120 and the adhesive film 130. The back surfaces of two adjacent battery pieces 110 are connected by using the same assembly welding strip 120, the adhesive film 130 is adhered to the back surfaces of the battery pieces 110, and the welding strip 120 is positioned between the battery pieces 110 and the adhesive film 130.
Fig. 1 is a flowchart of the method for repairing a laminated battery string according to the present invention, and the present invention provides a method for repairing a laminated battery string, comprising the following steps:
s1, heating the adhesive film 130 adhered to the defective battery piece 111, horizontally moving the battery string segments 140 at two sides of the defective battery piece 111, and drawing out two groups of welding strips 120 connected with the defective battery piece 111;
s2, removing the bad battery piece 111 and the adhesive film 130 adhered with the bad battery piece 111;
s3, paving a new adhesive film 131, a new battery piece 112 and a welding strip 120 according to the structure of the laminated battery string 100, so that the welding strip 120 is positioned between the new battery piece 112 and the new adhesive film 131;
s4, heating the new adhesive film 131 to adhere the new adhesive film 131 and the new battery piece 112.
In the present invention, the battery cell 110 having the hidden crack, breakage, or other quality problem is a defective battery cell 111. In step S1, after the adhesive film 130 adhered to the defective battery piece 111 is heated, the adhesive strength between the adhesive film 130 and the defective battery piece 111 is reduced, so that the two sets of solder strips 120 are easily drawn out, and the two sets of solder strips 120 remain intact. According to the structural characteristics of the laminated battery string 100, the new battery piece 112 and the new adhesive film 131 are used for repairing, so that the repairing quality of the laminated battery string 100 is ensured.
Alternatively, the solder ribbon 120 is guided to move in its axial direction during the solder ribbon 120 is drawn out. The moment the solder tape 120 is pulled away from the adhesive film 130 or the defective battery cell 111 may be moved in the radial direction thereof due to the influence of gravity or internal stress, so that the free end of the solder tape 120 deviates from a predetermined position. The drawn out solder ribbon 120 is guided to be in a predetermined position so as to pick up the free end of the solder ribbon 120.
Optionally, in step S3, a first new adhesive film 131 is laid first, so that a portion of the first new adhesive film 131 corresponding to the free end of the solder strip 120 is bent downward, and the first new adhesive film 131 forms a planar portion and a non-planar portion. For the first type of laminated battery string 100, the first new adhesive film 131 is the adhesive film 130 located at the back of the defective battery piece 111 during the process of repairing the first type of laminated battery string 100, the first new adhesive film 131 is used for fixing the first assembly welding strip 120 and the new battery piece 112, and the first new adhesive film 131 forms a planar portion and a non-planar portion. For the second type of laminated battery string 100, there is only a first new adhesive film 131, where the first new adhesive film 131 is located on the back of the new battery 112, and the first new adhesive film 131 is used to fix the two sets of solder strips 120 to the new battery 112, and the first new adhesive film 131 forms one planar portion and two non-planar portions. After the first new adhesive film 131 is laid, the battery piece 110 segments are moved, the free ends of the control welding strips 120 are clamped by the clamping structures, and the non-planar portions are used for avoiding the clamping structures, so that the welding strips 120 can be laid at preset positions on the first new adhesive film 131 smoothly, and the accuracy of the laying positions is ensured. Wherein, the planar area is larger than the non-planar area, and the new battery sheet 112 can press and fix the longer part of the solder strip 120 after being laid on the first new adhesive film 131.
As shown in fig. 3 to 6, the repair process of the first laminated battery string 100 is illustrated: firstly, the adhesive film 130 adhered to the two sides of the defective battery piece 111 is heated, two battery string segments 140 on the two sides of the defective battery piece 111 are horizontally moved, so that two groups of welding strips 120 connected to the two sides of the defective battery piece 111 are extracted, and each battery string segment 140 comprises a group of extracted welding strips 120; then, removing the bad battery piece 111 and the adhesive films 130 adhered to the two sides of the bad battery piece, paving a first new adhesive film 131, moving the left battery string segment 140, paving the first assembly welding strip 120 on the first new adhesive film 131, and paving the new battery piece 112 on the first assembly welding strip 120; next, moving the right battery string segment 140, laying the second assembly welding strip 120 on the new battery piece 112, and laying a second new adhesive film 131 on the second assembly welding strip 120; finally, the two new adhesive films 131 are heated to adhere to the new battery cells 112.
When repairing the first type of laminated battery string 100, after the first new adhesive film 131 is laid, the first battery string segment 140 is moved, and the free end of the first assembly welding strip 120 is clamped and controlled, after the first assembly welding strip 120 is laid on the planar portion, the new battery sheet 112 is laid on the planar portion to press the first assembly welding strip 120 on the planar portion, and the non-planar portion is restored to the horizontal state. After the new battery piece 112 is laid, the second battery string segment 140 is moved, the free end of the second assembly welding strip 120 is clamped and controlled, after the second assembly welding strip 120 is positioned above the new battery piece 112, the free end of the second assembly welding strip 120 is lifted, a second new adhesive film 131 is laid, and the non-free end of the second assembly welding strip 120 and the second new adhesive film 131 corresponding to the free end are pressed successively.
Specifically, as shown in fig. 7 to 9, during the repair process of the first laminated battery string 100, the first clamp 42 is used to clamp and control the free end of the first assembly welding strip 120 and move with the first battery string segment 140, after the first assembly welding strip 120 is laid on the planar portion, the first clamp 42 is used to clamp and move the free end of the first assembly welding strip 120 below the position where the planar portion is located, and the non-planar portion of the first new adhesive film 131 is used to avoid the first clamp 42. At this time, the free end of the first assembly welding strip 120 is bent downward, a new battery piece 112 is laid on the planar portion, the new battery piece 112 can press the first assembly welding strip 120 to make the first assembly welding strip 120 always be at a preset position, the free end of the first assembly welding strip 120 is released, and the non-planar portion is restored to a horizontal state, so that the first new adhesive film 131 is in contact with the new battery piece 112. After the new battery piece 112 is laid, the free end of the second assembly welding strip 120 is clamped and controlled by using the second group of first clamps 42 and moves along with the second battery string segment 140, the second group of first clamps 42 lifts the free end of the second assembly welding strip 120 and is positioned above the new battery piece 112, a second new adhesive film 131 is laid, a second new adhesive film 131 part which does not cover the second group of first clamps 42 is pressed, the non-free end of the second assembly welding strip 120 is pressed on the new battery piece 112, and meanwhile, the free end of the second assembly welding strip 120 is separated from the second group of first clamps 42, and after the second group of first clamps 42 are removed, the second new adhesive film 131 part corresponding to the free end of the second assembly welding strip 120 is pressed. Under the action of pressure, the new adhesive film 131, the new battery piece 112 and the welding strip 120 are tightly combined and shaped.
As shown in fig. 11 to 13, the repair process of the second type of laminated battery string 100 is illustrated: firstly, the adhesive film 130 adhered to the back surface of the defective battery piece 111 is heated, two battery string segments 140 on two sides of the defective battery piece 111 are horizontally moved, so that two groups of welding strips 120 connected to the back surface of the defective battery piece 111 are extracted, and each battery string segment 140 comprises a group of extracted welding strips 120; then, removing the bad battery piece 111 and the adhesive film 130 adhered to the back surface of the bad battery piece, paving a first new adhesive film 131, moving the left battery string segment 140, paving the first assembly welding strip 120 on the first new adhesive film 131, then moving the right battery string segment 140, paving the second assembly welding strip 120 on the first new adhesive film 131, and paving the new battery piece 112 on the two assembly welding strips 120; finally, the first new adhesive film 131 is heated to adhere to the new battery sheet 112.
When repairing the first type of laminated battery string 100, after the first new adhesive film 131 is laid, the first battery string segment 140 is moved, the free end of the first assembly welding strip 120 is clamped and controlled, the first assembly welding strip 120 is laid on the plane part, the second battery string segment 140 is moved, the free end of the second assembly welding strip 120 is clamped and controlled, the second assembly welding strip 120 and the first assembly welding strip 120 are laid on the plane part in a crossing manner, finally, the new battery sheet 112 is laid on the plane part to press the two assembly welding strips 120 on the plane part, and the non-plane part is restored to a horizontal state.
Specifically, as shown in fig. 14 to 16, during the repair of the second type of laminated battery string 100, the free ends of the first set of welding strips 120 are clamped and controlled by the first clamp 42 and move together with the first battery string segment 140, and after the first set of welding strips 120 are laid on the planar portion, the free ends of the first set of welding strips 120 are clamped from below by the first set of second clamps 7; the free ends of the second set of welding strips 120 are clamped and controlled by the first clamp 42 and move together with the second battery string segment 140, and after the second set of welding strips 120 cross the first set of welding strips 120 and are laid on the plane part, the free ends of the second set of welding strips 120 are clamped from below by the second clamp 7. The first clamp 42 is removed, and the free ends of the two groups of welding strips 120 clamped by the two groups of second clamps 7 are moved below the position where the plane parts are located, and the non-plane parts are used for avoiding the first clamp 42 and the second clamp 7. At this time, the free ends of the two sets of welding strips 120 are bent downward, the new battery piece 112 is laid on the planar portion, the free ends of the two sets of welding strips 120 are released to press the new battery piece 112, and the non-planar portion is restored to a horizontal state, so that the first new adhesive film 131 contacts with the new battery piece 112. Under the action of pressure, the new adhesive film 131, the new battery piece 112 and the welding strip 120 are tightly combined and shaped.
In the embodiment of the present invention, when the first laminated battery string 100 is reworked, the first group of first clamps 42 horizontally extend, so that the free ends of the solder strips 120 can be clamped up and down, and the free ends of the solder strips 120 can be clamped left and right; the second set of first clamps 42 extend horizontally and clamp the solder strip 120 left and right. When repairing the second type of laminated battery string 100, the free ends of the two sets of welding strips 120 may be clamped by using a set of vertically extending first clamps 42, or the free ends of the two sets of welding strips 120 may be respectively clamped by using two sets of vertically extending first clamps 42.
Optionally, when the solder strips 120 are drawn out, the portion of the adhesive film 130 between the defective battery piece 111 or the solder strips 120 above the defective battery piece 111 is pressed and fixed, or the adhesive film 130 below the defective battery piece 111 is adsorbed and fixed, so that the defective battery piece 111 is kept stable.
In actual production, the defective cell 111 may be any one of the cell 110 in the film-covered battery string 100.
When the defective cell sheet 111 is not at the end of the laminated cell string 100, at least one cell sheet 110 is provided in each cell string segment 140, and after the cell sheet 110 or the adhesive film 130 of the cell string segment 140, which is close to the defective cell sheet 111, is pressed, the cell string segment 140 is moved, so that the cell string segment 140 remains stable in the moving process.
When the defective battery piece 111 is located at the end of the laminated battery string 100, if the first battery string segment 140 only includes the first assembly welding strip 120, the second battery string segment 140 includes at least two battery pieces 110, and when the laminated battery string 100 is reworked, the first assembly welding strip 120 is clamped to extend out of the end of the adhesive film 130, and after the adhesive film 130, which is close to the defective battery piece 111, in the second battery string segment 140 is pressed, the two battery string segments 140 are moved; if the second battery string segment 140 includes only the second assembly welding strip 120, the first battery string segment 140 has at least two battery pieces 110, and when repairing the coated battery string 100, the second assembly welding strip 120 is clamped to extend out of the end of the adhesive film 130 and press the adhesive film 130 of the first battery string segment 140, which is close to the defective battery piece 111, and then move the two battery string segments 140.
As shown in fig. 17-19, the present invention further provides a coated battery string repairing apparatus, which uses the above coated battery string repairing method, and includes a carrying mechanism 1, a heating element, a workbench 2, a mobile station 3, and a first auxiliary mechanism 4; the carrying mechanism 1 is used for paving a new adhesive film 131 and a new battery piece 112 on the workbench 2 and removing the bad battery piece 111; the heating element is arranged above the workbench 2 and/or on the workbench 2; the mobile station 3 is provided with two battery string segments 140 which are respectively used for bearing the two battery string segments and are far away from or near to the workbench 2 and are positioned at two sides of the workbench 2; the first auxiliary mechanism 4 includes a set of first clamps 42 for clamping and controlling the free ends of the solder strips 120. A magazine 8 is provided beside the mobile station 3 or the work station 2, and a battery sheet 110 and a glue film 130 are stored in the magazine 8.
The heating element is used for providing heat to heat the adhesive film 130 adhered to the defective battery piece 111 to reduce the adhesion, or heating the new adhesive film 131 paved with the new battery piece 112 to generate adhesion so as to fix the welding strip 120 and the new battery piece 112. When repairing the film-covered battery string 100, the defective battery piece 111 is located on the table 2, and the two moving tables 3 are respectively used for receiving the battery string segments 140 on both sides of the defective battery piece 111.
Optionally, the coated battery string repairing device further comprises a comb plate 6 arranged below the two mobile tables 3 in a lifting manner, the comb plate 6 is close to the workbench 2, and tooth grooves are formed in the top of the comb plate 6. After the two sets of solder strips 120 are partially extracted, the comb plate 6 is moved up to a position between the moving table 3 and the working table 2, so that the two sets of solder strips 120 are positioned in the tooth grooves, and the two sets of solder strips 120 are guided to move in the axial direction. After the two sets of welding strips 120 are drawn out, they are still in the tooth grooves, and the free ends of the two sets of welding strips extend out of the tooth grooves, so that the first auxiliary mechanism 4 can clamp the welding strips.
Referring to fig. 7-9 and 18 again, in a first embodiment of the repair apparatus for a laminated battery string, for repairing a first laminated battery string 100, the working table 2 includes a first support table 21 and a second support table 22, the second support table 22 is disposed on the right side of the first support table 21, the second support table 22 can move up and down or rotate relative to the first support table 21, and is used for avoiding the first clamp 42 when the first assembly welding strip 120 is laid on a new adhesive, and the area of the first support table 21 is larger than that of the second support table 22. The second auxiliary mechanism 5 capable of lifting is arranged above the workbench 2, two pressing tools 52 are arranged at the bottom of the second auxiliary mechanism 5, namely a first pressing tool 521 and a second pressing tool 522, and are used for pressing the second new adhesive film 131 in a separated mode, the area of the first pressing tool 521 is larger than that of the second pressing tool 522, and the second pressing tool 522 can move up and down or rotate relative to the first pressing tool 521 and is used for avoiding the first clamp 42 when the second welding strip set 120 is paved on the new battery piece 112. Preferably, the second presser 522 is capable of moving up and down relative to the first presser 521, and when the first clamp 42 is in the position shown in fig. 8, the second assembly welding strip 120 continues to move leftwards, the second assembly welding strip 120 is tightened and separated from the first clamp 42, the new adhesive film 131 covers the free end of the second assembly welding strip 120, and the second presser 522 moves downwards to press the second new adhesive film 131.
Referring to fig. 14-16 and 19 again, in a second embodiment of the repair apparatus for a laminated battery string, for repairing a second laminated battery string 100, the working table 2 includes a first supporting table 21 and two second supporting tables 22, the two second supporting tables 22 are disposed on two sides of the first supporting table 21, the second supporting tables 22 can move up and down or rotate relative to the first supporting table 21, and are used for avoiding the first clamp 42 when the first assembly welding strip 120 is paved on the new adhesive, and the area of the first supporting table 21 is larger than that of the second supporting table 22. A second clamp 7 capable of lifting is arranged below each second supporting table 22, and the second clamp 7 is provided with two groups and is used for connecting and clamping the free ends of the two groups of welding strips 120 with the two groups of first clamps 42 and bending the free ends. A second auxiliary mechanism 5 which can be lifted is arranged above the workbench 2, and a pressing tool 52 is arranged at the bottom of the second auxiliary mechanism 5 and used for pressing the new battery piece 112.
Preferably, the second support can rotate relative to the first support table 21, so that the first new adhesive film 131 can be smoothed.
Optionally, the second auxiliary mechanism 5 is further provided with an elastic pressing pin 53, and the elastic pressing pin 53 is used for pressing the adhesive film 130 between the defective battery piece 111 or the welding strip 120 above the defective battery piece. Specifically, the second auxiliary mechanism 5 further includes a second moving frame 51, the heating element is an infrared lamp, the infrared lamp is disposed in the second auxiliary mechanism 5, the presser 52 is disposed at the bottom of the second moving frame 51, the presser 52 is provided with a light hole, the infrared lamp radiates infrared rays to the battery plate 110 through the light hole, and heat of the battery plate 110 after being heated is transferred to the adhesive film 130. The elastic pressing pins 53 and the infrared lamps are provided in a plurality of ways and are inserted, and the elastic pressing pins 53 extend out of the light holes to press the adhesive film 130 or the defective battery piece 111. The elastic pressing pin 53 can also move upwards relative to the pressing tool 52, and is retracted into the second moving frame 51 after the defective battery piece 111 or the adhesive film 130 on the defective battery piece 111 is pressed, so that the contact of the new battery piece 112 or the new adhesive film 131 is avoided when the pressing tool 52 works.
Optionally, two first auxiliary mechanisms 4 are provided, and the first clamp 42 extends horizontally or vertically, for repairing the first type of laminated battery string 100 and the second type of laminated battery string 100, respectively. The bottom of each first auxiliary mechanism 4 is further provided with an elastic pressing plate 43, and the elastic pressing plate 43 is used for pressing the battery piece 110 or the adhesive film 130, which is close to the defective battery piece 111, in the battery string segment 140, so that the battery string segment 140 is kept stable in the moving process. Specifically, the first auxiliary mechanism 4 further includes a first movable frame 41, and the first clamp 42 and the elastic pressing plate 43 are disposed at the bottom of the first movable frame 41, and the bottom of the first clamp 42 is always higher than the bottom of the elastic pressing plate 43. It should be noted that, the mobile station 3 located on the left side is used for receiving the first battery string segment 140, the mobile station 3 located on the right side is used for receiving the second battery string segment 140, the first auxiliary mechanism 4 located on the right side includes the first group of first clamps 42, and the first auxiliary mechanism 4 located on the left side includes the second group of first clamps 42. When the two mobile tables 3 receive the two battery string segments 140 and keep away from the working table 2, the elastic pressing plates 43 of the two first auxiliary mechanisms 4 respectively press the two battery string segments 140, and the elastic pressing pins 53 press the defective battery pieces 111 or the adhesive film 130 above the defective battery pieces, so as to draw out the two sets of welding strips 120. When the first assembly welding strip 120 is paved, the first auxiliary mechanism 4 positioned on the right side moves to enable the first clamp 42 of the first group to clamp the free end of the first assembly welding strip 120, the first clamp 42 of the first group moves upwards to lift the free end of the first assembly welding strip 120 by a certain distance so as to avoid the workbench 2, and the first auxiliary mechanism 4 positioned on the left side continuously presses the first battery string segment 140; then the moving table 3 and the two first auxiliary mechanisms 4 on the left side move simultaneously, and the first set of solder tapes 120 are laid on the first new adhesive film 131. When the second assembly welding strip 120 is laid, the elastic pressing plate 43 on the first auxiliary mechanism 4 positioned on the right presses the second battery string segment 140 again, the first auxiliary mechanism 4 positioned on the left moves to enable the second group of first clamps 42 to clamp the free end of the second assembly welding strip 120, the second group of first clamps 42 moves upwards to lift the free end of the second assembly welding strip 120 by a certain distance so as to avoid the workbench 2, and then the moving table 3 positioned on the right and the two first auxiliary mechanisms 4 move simultaneously to lay the second assembly welding strip 120 on the first new adhesive film 131 or the new battery piece 112.
Alternatively, the moving table 3 includes a lifting table 31 and a horizontal moving table 32, the lifting table 31 is disposed at one side of the horizontal moving table 32 and moves horizontally with the horizontal moving table 32, the lifting table 31 is disposed between the horizontal moving table 32 and the working table 2, and the lifting table 31 can move up and down and clamp the ends of the solder strips 120 at both ends of the film covered battery string 100. When the defective cell 111 is located at the end of the laminated cell string 100 for repair, for example, the defective cell 111 is located at the left end of the laminated cell string 100, that is, the first cell string segment 140 includes only the first set of solder strips 120: the lifting table 31 of the mobile station 3 positioned on the left clamps the end part of the first assembly welding strip 120 extending out of the adhesive film 130, the mobile station 3 positioned on the right receives the second battery string segment 140, and moves the two mobile stations 3 to draw out the two assembly welding strips 120. During the movement of the first set of solder bumps 120, the pressing using the elastic pressing plate 43 is not required.
In other embodiments of the present invention, suction cups are further provided on the working table 2 and the moving table 3 for sucking and fixing the adhesive film 130, so that the defective battery piece 111 and the two battery string segments 140 remain stable during the repair process.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the invention.
Claims (15)
1. The method for repairing the laminated battery string is characterized by comprising the following steps of:
s1, heating an adhesive film (130) adhered to a defective battery piece (111), horizontally moving battery string segments (140) at two sides of the defective battery piece (111), and drawing out two groups of welding strips (120) connected with the defective battery piece (111);
s2, removing the bad battery piece (111) and the adhesive film (130) adhered with the bad battery piece;
s3, paving a new adhesive film (131), a new battery piece (112) and the welding strip (120) according to the structure of the laminated battery string (100), and enabling the welding strip (120) to be positioned between the new battery piece (112) and the new adhesive film (131);
s4, heating the new adhesive film (131) to adhere the new adhesive film (131) and the new battery piece (112);
in step S3, a first piece of the new adhesive film (131) is laid, and a portion of the new adhesive film (131) corresponding to the free end of the solder strip (120) is bent downward, so as to form a planar portion and a non-planar portion.
2. The method for repairing a laminated battery string according to claim 1, wherein: the solder strip (120) is guided to move in its axial direction during the solder strip (120) is drawn out.
3. The method for repairing a laminated battery string according to claim 1, wherein: after the new adhesive film (131) is paved, a first battery string segment (140) is moved, the free ends of the first group of welding strips (120) are clamped and controlled, the first group of welding strips (120) are paved on the plane part, the new battery piece (112) is paved on the plane part to press the first group of welding strips (120) on the plane part, and the non-plane part is restored to a horizontal state.
4. The method for repairing a laminated battery string according to claim 3, wherein: after the new battery piece (112) is paved, a second battery string segment (140) is moved, the free ends of the welding strips (120) of a second group are clamped and controlled, the free ends of the welding strips (120) of the second group are lifted up after the welding strips (120) of the second group are positioned above the new battery piece (112), a second adhesive film (131) of the second group is paved, and the parts of the new adhesive film (131) corresponding to the non-free ends and the free ends of the welding strips (120) of the second group are pressed successively.
5. The method for repairing a laminated battery string according to claim 1, wherein: after the new adhesive film (131) is paved, a first battery string segment (140) is moved, the free ends of the first group of welding strips (120) are clamped and controlled, the first group of welding strips (120) are paved on the plane part, a second battery string segment (140) is moved, the free ends of the second group of welding strips (120) are clamped and controlled, the second group of welding strips (120) and the first group of welding strips (120) are paved on the plane part in a crossing manner, finally, the new battery pieces (112) are paved on the plane part to press the two groups of welding strips (120) on the plane part, and the non-plane part is restored to a horizontal state.
6. The method for repairing a laminated battery string according to claim 1, wherein: when the two groups of welding strips (120) are drawn out, the part of the adhesive film (130) between the defective battery piece (111) or the welding strip (120) above the defective battery piece is pressed and fixed, or the adhesive film (130) below the defective battery piece (111) is adsorbed and fixed.
7. The method for repairing a laminated battery string according to claim 1, wherein: when the defective cell (111) is not at the end of the film-covered cell string (100), the cell (110) or the adhesive film (130) of the cell string segment (140) close to the defective cell (111) is pressed, and then the cell string segment (140) is moved.
8. The method for repairing a laminated battery string according to claim 1, wherein: when the defective battery piece (111) is located at the end of the laminated battery string (100), if the first battery string segment (140) only comprises a first group of welding belts (120), the first group of welding belts (120) are clamped to extend out of the end of the adhesive film (130), and after the adhesive film (130) close to the defective battery piece (111) in the second battery string segment (140) is pressed, the two battery string segments (140) are moved; if the second battery string segment (140) only comprises the second group of welding strips (120), the second group of welding strips (120) are clamped to extend out of the end part of the adhesive film (130), and after the adhesive film (130) close to the defective battery piece (111) in the first battery string segment (140) is pressed, the two battery string segments (140) are moved.
9. A coated battery string repairing apparatus, characterized by applying the coated battery string repairing method according to any one of claims 1 to 8, comprising a handling mechanism (1), a heating element, a table (2), a mobile station (3) and a first auxiliary mechanism (4); the carrying mechanism (1) is used for paving the new adhesive film (131) and the new battery piece (112) on the workbench (2) and removing the bad battery piece (111); the heating element is arranged above the workbench (2) and/or on the workbench (2); the mobile table (3) is provided with two battery string segments (140) which are respectively used for bearing the two battery string segments and are far away from or close to the workbench (2), and the two battery string segments are positioned on two sides of the workbench (2); the first auxiliary mechanism (4) comprises a set of first clamps (42) for clamping the free ends of the solder strips (120).
10. The coated battery string repair device according to claim 9, wherein: the lifting type lifting device is characterized by further comprising comb plates (6) which are arranged below the two mobile stations (3) in a lifting mode, wherein the comb plates (6) are close to the working stations (2), and tooth grooves are formed in the tops of the comb plates (6).
11. The coated battery string repair device according to claim 9, wherein: the workbench (2) comprises a first supporting table (21) and a second supporting table (22); the second supporting table (22) is provided with one or two, and is arranged on one side or two sides of the first supporting table (21), and the second supporting table (22) can move up and down or rotate relative to the first supporting table (21).
12. The coated battery string repair device of claim 11, wherein: a second auxiliary mechanism (5) capable of lifting is arranged above the workbench (2), and one or two pressing tools (52) are arranged at the bottom of the second auxiliary mechanism (5); when the number of the pressing tools (52) is two, one pressing tool (52) can move up and down or rotate relative to the other pressing tool (52).
13. The coated battery string repair device of claim 11, wherein: two second supporting tables (22) are arranged, and a second clamp (7) capable of lifting is arranged below each second supporting table (22).
14. The coated battery string repair device according to claim 9, wherein: the first auxiliary mechanisms (4) are provided with two, the bottom of each first auxiliary mechanism (4) is also provided with an elastic pressing plate (43), and the elastic pressing plates (43) are used for pressing the battery pieces (110) close to the bad battery pieces (111) or the adhesive films (130) in the battery string segments (140).
15. The coated battery string repair device according to claim 9, wherein: the movable table (3) comprises a lifting table (31) and a horizontal movable table (32), the lifting table (31) is arranged on one side of the horizontal movable table (32) and moves horizontally along with the horizontal movable table (32), the lifting table (31) is located between the horizontal movable table (32) and the workbench (2), and the lifting table (31) can lift and move and clamp the ends of the welding strips (120) at two ends of the film covered battery string (100).
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| CN202311246561.5A CN117012858B (en) | 2023-09-26 | 2023-09-26 | Method and equipment for repairing laminated battery string |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311246561.5A CN117012858B (en) | 2023-09-26 | 2023-09-26 | Method and equipment for repairing laminated battery string |
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| CN117012858B true CN117012858B (en) | 2023-12-29 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285916A (en) * | 2017-07-21 | 2019-01-29 | 成都晔凡科技有限公司 | A kind of solar battery string repair system and method for imbrication component |
| CN218341309U (en) * | 2022-08-19 | 2023-01-20 | 无锡奥特维科技股份有限公司 | Weld and take draw gear and battery cluster to reprocess device |
| CN115986004A (en) * | 2023-03-21 | 2023-04-18 | 苏州小牛自动化设备有限公司 | Battery string repairing method and repairing equipment |
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2023
- 2023-09-26 CN CN202311246561.5A patent/CN117012858B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285916A (en) * | 2017-07-21 | 2019-01-29 | 成都晔凡科技有限公司 | A kind of solar battery string repair system and method for imbrication component |
| CN218341309U (en) * | 2022-08-19 | 2023-01-20 | 无锡奥特维科技股份有限公司 | Weld and take draw gear and battery cluster to reprocess device |
| CN115986004A (en) * | 2023-03-21 | 2023-04-18 | 苏州小牛自动化设备有限公司 | Battery string repairing method and repairing equipment |
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