CN114975663A - Solder strip, photovoltaic module, and preparation method and equipment of photovoltaic module - Google Patents
Solder strip, photovoltaic module, and preparation method and equipment of photovoltaic module Download PDFInfo
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- CN114975663A CN114975663A CN202210476086.XA CN202210476086A CN114975663A CN 114975663 A CN114975663 A CN 114975663A CN 202210476086 A CN202210476086 A CN 202210476086A CN 114975663 A CN114975663 A CN 114975663A
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- shaped film
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- solder
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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
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- 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
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0512—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module made of a particular material or composition of materials
-
- 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
- H01L31/18—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
-
- 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)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
- Photovoltaic Devices (AREA)
Abstract
The embodiment of the application discloses a solder strip, a photovoltaic module, a preparation method of the photovoltaic module and equipment. Wherein, the solder strip has included solder strip body, first banded membrane and the banded membrane of second, and first banded membrane and the banded membrane of second all connect in the solder strip body, and at the in-process of preparation photovoltaic module, the solder strip body can bond in a surface of a battery piece through first banded membrane, bonds in another surface of another battery piece through the banded membrane of second, so the circulation can realize the series connection of a plurality of battery pieces. According to the solder strip provided by the embodiment of the application, on one hand, the temperature required by the series connection of the battery pieces is greatly reduced, so that the property change of a transparent conductive oxide film with a preset thickness deposited on the original amorphous silicon layer of the battery pieces due to high temperature can be avoided; on the other hand, the arrangement of the first strip-shaped film and the second strip-shaped film facilitates the positioning and fixing of the welding strip on the battery piece, and the welding strip can be prevented from being misplaced.
Description
Technical Field
The embodiment of the application relates to the technical field of photovoltaics, in particular to a solder strip, a photovoltaic module, a preparation method of the photovoltaic module and production equipment of the photovoltaic module.
Background
Photovoltaic cell need form the battery cluster with a plurality of battery pieces series connection among the prior art, in order to play the effect of converging, mostly with conductor lug direct welding in the battery piece among the prior art, welding temperature is high, probably can damage the performance that the battery piece influences the battery piece, especially when using the lamp that welds of infrared heating, the lamp that welds can rapid heating up, very easily can reach or exceed heterojunction battery's rete damage temperature in the twinkling of an eye, and the solder strip among the prior art when being connected to the battery piece, only can fix through the briquetting, the dislocation appears easily in the solder strip, influence photovoltaic module's quality.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the invention provides a solder strip.
A second aspect of the invention provides a photovoltaic module.
A third aspect of the invention provides a method of making a photovoltaic module.
A fourth aspect of the invention provides a production apparatus for a photovoltaic module.
In view of this, according to a first aspect of embodiments of the present application, there is provided a solder strip, including:
a weld band body;
a first strip film connected to a partial region of the weld tape body;
and the second strip-shaped film is connected to the other partial area of the welding strip body, and the arrangement direction of the first strip-shaped film is opposite to that of the second strip-shaped film.
In one possible embodiment, the solder strip further comprises:
the first isolating layer is arranged on one side, away from the welding strip body, of the first strip-shaped film;
and the second isolation layer is arranged on one side of the second strip-shaped film, which deviates from the welding strip body.
In one possible embodiment, the first and second band-shaped films are identical in structure, each of the first and second band-shaped films includes a first melting layer attached to the solder strip body, the first melting layer is made of a modified resin material having a melting point of 60 to 160 ℃.
In one possible embodiment, the one and second band-shaped films further include:
and the solidified layer is connected with the melting layer, and the melting point of the solidified layer is greater than that of the melting layer.
In one possible embodiment, the one and second strip-shaped films further comprise:
the second melting layer is connected to one side, away from the first melting layer, of the curing layer, and the melting point of the second melting layer is 60-160 ℃.
In one possible embodiment, the solder strip further comprises:
the first covering film is covered on the first strip-shaped film, and part of the welding strip body is positioned between the first covering film and the first strip-shaped film;
and the second cover film covers the second strip-shaped film, and the other part of the solder strip body is positioned between the second cover film and the second strip-shaped film.
In one possible embodiment of the method according to the invention,
the length of the first strip-shaped film is matched with the length or the width of the battery piece, and the width of the first strip-shaped film is 1 mm-10 mm;
the length of the second strip-shaped film is matched with the length or the width of the battery piece, and the width of the second strip-shaped film is 1 mm-10 mm.
According to a second aspect of embodiments of the present application, there is provided a photovoltaic module, comprising:
the solder strip according to any of the above technical solutions;
the first battery piece is used for bonding the welding strip body to the first surface of the first battery piece;
and the second strip-shaped film is used for bonding the welding strip body to the second surface of the second battery piece so as to connect the first battery piece and the second battery piece in series.
According to a third aspect of the embodiments of the present application, there is provided a method for manufacturing a photovoltaic module, for manufacturing the photovoltaic module according to the above technical solution, the method including:
providing a first battery piece, and adhering a first strip-shaped film of a welding strip to a first surface of the first battery piece;
providing a second battery piece, and bonding a second strip-shaped film of the welding strip on a second surface of the second battery piece;
heating the first and second strip-shaped films to melt at least a portion of the first and second strip-shaped films.
In one possible embodiment, the preparation method further comprises:
arranging a plurality of first glue points on the first surface of the first battery piece, and positioning the first strip-shaped film through the plurality of first glue points;
and arranging a plurality of second glue points on the second surface of the second battery piece, and positioning the second strip-shaped film through the plurality of second glue points.
In a possible embodiment, the step of providing a plurality of first glue dots on the first surface of the first battery piece includes:
acquiring image information of the first battery piece;
analyzing the image information to obtain the surface area information of the first battery piece and the grid line position information on the battery piece;
acquiring conveying speed information of the conveying belt;
and arranging a plurality of first glue dots distributed in an array on the first surface of the first battery piece based on the surface area information, the grid line position information and the conveying speed information.
According to a fourth aspect of the embodiments of the present application, there is provided a production apparatus for a photovoltaic module, for preparing the photovoltaic module according to the above technical solution, the production apparatus including:
the conveying belt is used for bearing the battery piece;
the fixing assembly comprises an elastic part and a compression roller, the compression roller is connected to the elastic part, and the compression roller is used for applying pressure to the welding strips on the battery piece.
In one possible embodiment of the method according to the invention,
the elastic portion includes:
the connecting rod is internally provided with an accommodating space;
the elastic piece is arranged in the accommodating space, one end of the elastic piece is connected to the connecting rod, and the other end of the elastic piece is connected to the compression roller; or
The elastic portion is made of a rubber material.
In a possible embodiment, the elastic portion further includes: the detection assembly is arranged on the inner wall of the connecting rod;
the adjusting shaft is connected to the connecting rod in a sliding mode, and one end of the elastic piece is used for abutting against the adjusting shaft;
the controller is connected to the adjusting shaft, the controller acquires deformation quantity information of the elastic piece based on the detection assembly, and adjusts the length of the adjusting shaft in the connecting rod based on the deformation quantity information.
In one possible embodiment, the detection assembly comprises:
and the grating ruler sensor is arranged along the length direction of the connecting rod.
In one possible embodiment, the press roll comprises:
a connecting part connected to the elastic part;
the roller body is connected to the connecting part and is made of an elastic material;
and a groove is formed in the roller body, and the width of the groove is adapted to the width of the welding strip.
In a possible embodiment, the production facility further comprises:
and the pressing block is used for applying pressure to the welding strip arranged on the cell body.
In one possible embodiment, the production facility further comprises:
and the dispensing component is used for setting a dispensing point for the battery piece arranged on the transmission belt.
In one possible embodiment, the dispensing assembly includes:
the first sliding rail is arranged on one side of the conveying belt along the length direction of the conveying belt;
the second sliding rail is connected to the first sliding rail in a sliding manner along the width direction of the conveying belt;
and the glue dispenser is arranged on the second sliding rail in a sliding manner.
In a possible embodiment, the production facility further comprises:
the output roller is arranged on one side of the conveying belt and used for outputting and conveying the welding belt;
the locating part sets up the transmission band with between the output roller, be formed with conveying space on the locating part, it passes to weld the area conveying space carries on the transmission band.
Compared with the prior art, the invention at least comprises the following beneficial effects: the solder strip that this application embodiment provided has included the solder strip body, first banded membrane and the banded membrane of second all connect in the solder strip body, and the setting opposite direction of first banded membrane and the banded membrane of second, this in-process of preparing photovoltaic module of solder strip through this application embodiment provides, the solder strip body can bond in a surface of a battery piece through first banded membrane, bond in another surface of another battery piece through the banded membrane of second, so set up and to realize the series connection of two battery pieces, so the circulation can realize the series connection of a plurality of battery pieces. According to the solder strip provided by the embodiment of the application, the conventional welding process is replaced by adhering the solder strip body to the cell piece through the first strip-shaped film and the second strip-shaped film, on one hand, the temperature required by the series connection of the cell piece is greatly reduced, so that the property change of a transparent conductive oxide film with a preset thickness deposited on the original amorphous silicon layer of the cell piece due to high temperature can be avoided, and the performance of a photovoltaic module is guaranteed; on the other hand, the setting through first banded membrane and second banded membrane is convenient for weld the location and the fixed of area on the battery piece, can avoid welding the area and appear the dislocation, has further ensured photovoltaic module's quality.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic block diagram of a solder strip in one embodiment provided herein;
FIG. 2 is a schematic block diagram of a solder strip body of a solder strip in accordance with an embodiment provided herein;
FIG. 3 is a schematic block diagram of a photovoltaic module according to one embodiment provided herein;
fig. 4 is a schematic structural diagram of a production apparatus for a photovoltaic module according to an embodiment provided in the present application;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a schematic block diagram of a fixture assembly of a production facility in one embodiment provided herein;
FIG. 7 is a schematic structural view of a press roll of a production apparatus of an embodiment provided in the present application;
FIG. 8 is another perspective schematic block diagram of a photovoltaic module manufacturing facility according to an embodiment provided herein;
FIG. 9 is a schematic block diagram of another angle of a production facility for photovoltaic modules according to an embodiment provided herein;
fig. 10 is a schematic structural diagram of a dispensing assembly of a production apparatus according to an embodiment of the present application;
FIG. 11 is a schematic diagram of a glue point on a battery plate according to an embodiment of the present disclosure;
FIG. 12 is a schematic structural view of an elastic part of a production apparatus according to an embodiment of the present application;
fig. 13 is a schematic step flow diagram of a method of making a photovoltaic module according to an embodiment provided herein.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 12 is:
110 a solder strip body, 120 a first strip film, 130 a second strip film;
111 heat fusion layer, 112 metal column, 113 metal layer;
210 a first cell piece, 220 a second cell piece;
410 conveying belts, 420 fixing components, 430 pressing blocks, 440 glue dispensing components, 450 output rollers, 460 limiting pieces and 470 glue dispensing points;
421 elastic part, 422 press roller, 441 first slide rail, 442 second slide rail, 443 glue dispenser;
4211 connecting rod, 4212 elastic piece, 4213 adjusting shaft, 4214 grating ruler sensor, 4221 connecting part, 4222 roller body and 4223 groove.
Detailed Description
In order to better understand the technical solutions described above, the technical solutions of the embodiments of the present application are described in detail below with reference to the drawings and the specific embodiments, and it should be understood that the specific features of the embodiments and the embodiments of the present application are detailed descriptions of the technical solutions of the embodiments of the present application, and are not limitations of the technical solutions of the present application, and the technical features of the embodiments and the embodiments of the present application may be combined with each other without conflict.
As shown in fig. 1 to 3, according to a first aspect of an embodiment of the present application, there is provided a solder strip including: a solder strip body 110; a first band-shaped film 120, the first band-shaped film 120 being attached to a partial region of the solder ribbon body 110; and a second band-shaped film 130, wherein the second band-shaped film 130 is connected to another partial area of the solder strip body 110, and the first band-shaped film 120 and the second band-shaped film 130 are arranged in the opposite direction.
The solder strip provided by the embodiment of the application comprises a solder strip body 110, a first strip-shaped film 120 and a second strip-shaped film 130, wherein the first strip-shaped film 120 and the second strip-shaped film 130 are both connected to the solder strip body 110, the arrangement directions of the first strip-shaped film 120 and the second strip-shaped film 130 are opposite, in the process of preparing the photovoltaic module through the solder strip provided by the embodiment of the application, the solder strip body 110 can be adhered to one surface of one cell piece through the first strip-shaped film 120, and is adhered to the other surface of the other cell piece through the second strip-shaped film 130, so that the series connection of the two cell pieces can be realized through the arrangement, and the series connection of a plurality of cell pieces can be realized through the circulation. According to the solder strip provided by the embodiment of the application, the solder strip body 110 can be bonded on the cell piece through the first strip-shaped film 120 and the second strip-shaped film 130 to replace the traditional welding process, so that on one hand, the temperature required by the series connection of the cell piece is greatly reduced, and the property change of a transparent conductive oxide film with a preset thickness deposited on the original amorphous silicon layer of the cell piece due to high temperature can be avoided, thereby ensuring the performance of a photovoltaic module; on the other hand, the first strip-shaped film 120 and the second strip-shaped film 130 are arranged to facilitate positioning and fixing of the solder strip on the cell piece, so that dislocation of the solder strip can be avoided, and the quality of the photovoltaic module is further guaranteed.
It is understood that the first and second band-shaped films 120 and 130 may be adhesive tapes, and the first and second band-shaped films 120 and 130 may also be a film structure melted by heat, so that the first and second band-shaped films 120 and 130 may be attached to the battery cell by means of adhesion.
In some examples, the first and second band-shaped films 120 and 130 may have a multi-layer structure, and the sides of the first and second band-shaped films 120 and 130 facing the solder ribbon may be adhesive layers, so that the first and second band-shaped films 120 and 130 may be adhered to the battery sheet to facilitate the preliminary fixing of the solder ribbon.
In one possible embodiment, the solder strip further comprises: the first isolation layer is arranged on one side of the first strip-shaped film 120, which is far away from the welding strip body; and the second isolation layer is arranged on one side of the second strip-shaped film 130, which deviates from the solder strip body.
The solder strip can further comprise a first isolation layer and a second isolation layer, and considering that the first strip-shaped film 120 and the second strip-shaped film 130 are likely to melt in the using process or the preparation process of the photovoltaic module, the first isolation layer and the second isolation layer can prevent the first strip-shaped film 120 and the second strip-shaped film 130 from being adhered to equipment for producing the photovoltaic module in the preparation process of the photovoltaic module, so that the high-efficiency processing of the photovoltaic module is ensured; in the use process of the photovoltaic module, the first isolation layer and the second isolation layer can limit the first strip-shaped film 120 and the second strip-shaped film 130, so that the solder strip can be prevented from being separated from the cell; on the other hand, can carry on spacingly to the first banded membrane 120 of melting and the banded membrane 130 of second through setting up of first isolation layer and second isolation layer, can make the banded membrane of the first banded membrane 120 and the second 130 that solidify once more level and more smooth, can improve the luminousness, and then ensured photovoltaic module's generating efficiency.
It is understood that the melting points of the first and second separation layers are greater than the melting points of the first and second band films 120 and 130, and the melting points of the first and second separation layers may be 60 to 300 ℃.
In one possible embodiment, the first and second band-shaped films 120 and 130 are identical in structure, and each of the first and second band-shaped films 120 and 130 includes a first melting layer attached to the solder strip body, the first melting layer being made of a modified resin material having a melting point of 60 to 160 ℃.
It is understood that the first and second strip films 120 and 130 may be of the same construction and material, differing in the location of the attachment.
In this embodiment, the structure of the first band-shaped film 120 and the second band-shaped film 130 is further provided, and the first band-shaped film 120 and the second band-shaped film 130 may be a single-layer structure, that is, the first band-shaped film 120 and the second band-shaped film 130 include only the first melting layer.
The first melting layers of the first and second band-shaped films 120 and 130 are made of modified materials, which can make the chemical properties of the first and second band-shaped films 120 and 130 more stable, so that the photovoltaic module can work more stably.
The melting point of the first melting layer of the first strip-shaped film 120 and the second strip-shaped film 130 is 60 ℃ to 160 ℃, and in the preparation process of the photovoltaic module, the first strip-shaped film 120 and the second strip-shaped film 130 can be melted by a heating element, so that on one hand, the adhesiveness of the first strip-shaped film 120 and the second strip-shaped film 130 can be improved, and the welding strip can be conveniently adhered to the cell piece; on the other hand, the first strip-shaped film 120 and the second strip-shaped film 130 are melted, the solder strip can be sunken into the first strip-shaped film 120 and the second strip-shaped film 130 under the action of pressure, the first strip-shaped film 120 and the second strip-shaped film 130 after being solidified again can better wrap the solder strip body 110, the solder strip body 110 and the battery piece can be fixed more tightly, and the solder strip body 110 can be fixed more reliably.
In some examples, the first and second band-shaped films may have the same structure, and may include a cured layer and a first melting layer, and the cured layer may be covered with a separation layer, the separation layer covered on the first band-shaped film may be a first separation layer, the separation layer covered on the second band-shaped film may be a second separation layer, and the first and second separation layers may have the same structure, the separation layer may have a width of 2mm to 3mm and a thickness of 0.02 to 0.1m, the prepared material may be EVA or a modified resin, the cured layer may have a thickness of 0.1mm to 0.15mm, and the wire diameter of the solder strip body may be 0.1 to 0.5 mm.
In example 1, the width of the spacer layer was 2mm and the thickness was 0.05 mm; the thickness of the curing layer is 0.1mm and the curing layer is made of EVA materials; the wire diameter of the solder strip body is 0.25.
In example 2, the width of the spacer layer was 2mm and the thickness was 0.05 mm; the cured layer has a thickness of 0.1mm and is made of a modified resin material; the wire diameter of the solder strip body is 0.25.
In example 3, the width of the spacer layer was 3mm and the thickness was 0.05 mm; the thickness of the solidified layer is 0.15mm, and the solidified layer is made of EVA materials; the wire diameter of the solder strip body is 0.25.
In example 4, the width of the spacer layer was 3mm and the thickness was 0.05 mm; the cured layer has a thickness of 0.15mm and is made of a modified resin material; the wire diameter of the solder strip body is 0.25.
In example 5, the width of the spacer layer was 3mm and the thickness was 0.05 mm; the thickness of the solidified layer is 0.15mm and the solidified layer is made of EVA material; the wire diameter of the solder strip body is 0.25.
In example 6, the width of the spacer layer was 3mm and the thickness was 0.05 mm; the cured layer has a thickness of 0.15mm and is made of a modified resin material; the wire diameter of the solder strip body is 0.25.
Test example 1, the first and second band-shaped films of examples 1 to 4 were examined for their adhesive properties at a temperature of 100 ℃.
Test example 2 the adhesive properties of example 5 and example 6 were tested at a temperature of 115 ℃.
The results of tests in test example 1 and test example 2 are shown in Table 1
TABLE 1 test results
In some examples, the material used to prepare the first melting layer may be modified POE, modified EVA, modified EPE, solid silica gel, modified resin, or the like, having a high melting point, low flow sol substance.
In one possible embodiment, the first and second band-shaped films 120 and 130 further include: and the curing layer is connected with the melting layer, and the melting point of the curing layer is greater than that of the melting layer.
The first and second strip films 120 and 130 may further include a cured layer, that is, the first and second strip films 120 and 130 may have a double-layer structure including a cured layer and a first melting layer connected to the cured layer, and the cured layer has a melting point higher than that of the first melting layer, so as to prevent the encapsulant from intruding between the first melting layer and the cell sheet during the encapsulation of the photovoltaic module.
In some examples, the material used to prepare the cured layer includes PE-like, PP, silicone, modified resins, PET, and other high molecular materials with a high melting point, which is 60-300 degrees celsius.
In one possible embodiment, the first and second band-shaped films 120 and 130 further include: the second melting layer is connected to one side, away from the first melting layer, of the curing layer, and the melting point of the second melting layer is 60-160 ℃.
The first and second band-shaped films 120 and 130 may further include a second melting layer, that is, the first and second band-shaped films 120 and 130 may have a three-layer structure including a first melting layer, a cured layer, and a second melting layer, which are sequentially connected, so that both sides of the first and second band-shaped films 120 and 130 may have adhesiveness, which may improve the applicability of the first and second band-shaped films 120 and 130.
In some examples, materials used to prepare the second melt layer include POE, EVA, EPE, solid silica gel, modified resin, and the like, which have melting points of 60 to 160 degrees celsius.
In some examples, the material for preparing the first and second band-shaped films 120 and 130 may further include a coupling agent, and the coupling agent may be coupled to the first and second band-shaped films 120 and 130 after melting, so that the melting points of the first and second band-shaped films 120 and 130 after solidification are increased, and melting of the first and second band-shaped films 120 and 130 during the use of the photovoltaic module can be inhibited, which may further ensure the service life and operation stability of the photovoltaic module.
In one possible embodiment, the solder strip further comprises: a first cover film covering the first tape film 120, a part of the solder ribbon body 110 being located between the first cover film and the first tape film 120; and a second cover film covering the second tape film 130, and the other part of the solder ribbon body 110 is located between the second cover film and the second tape film 130.
The solder strip can further comprise a first cover film and a second cover film, when the solder strip is not connected onto the cell, the first cover film and the second cover film can protect the first strip-shaped film 120 and the second strip-shaped film 130, dust can be prevented from being infected onto the first strip-shaped film 120 and the second strip-shaped film 130, the cleanliness of the solder strip is guaranteed, and the dust is prevented from invading onto the cell.
In one possible embodiment, the length of the first band-shaped film 120 is adapted to the length or width of the cell piece, and the width of the first band-shaped film 120 is 1mm to 10 mm; the length of the second band-shaped film 130 is adapted to the length or width of the cell sheet, and the width of the second band-shaped film 130 is 1mm to 10 mm.
The length of the first band-shaped film 120 adapted to the length or width of the cell piece means that the length of the first band-shaped film 120 is the same as the length or width of the cell piece, and the length of the second band-shaped film 130 adapted to the length or width of the cell piece means that the length of the second band-shaped film 130 is the same as the length or width of the cell piece, so that the solder strip body 110 can be adhered to one cell piece through the first band-shaped film 120 and adhered to another cell piece through the second band-shaped film 130.
The length adaptation of second banded membrane 130 is in the length or the width of battery piece, and the width of second banded membrane 130 does, has ensured to weld the area and can firmly connect in the battery piece in, has reduced the width of first banded membrane 120 and second banded membrane 130 to furthest, has reduced the area covered of first banded membrane 120 and second banded membrane 130 on the battery piece, does benefit to the printing opacity efficiency that improves photovoltaic module, can improve the generating efficiency.
As shown in fig. 2, in some examples, the solder strip body 110 includes: metal column 112, hot melt layer 111 and metal layer 113, metal layer 113 cladding is on metal column 112, and hot melt layer 111 cladding is on the metal layer, and hot melt layer 111 is made by the material that the melting point is 50 ℃ to 500 ℃.
In the solder strip use that this application embodiment provided, can set up solder strip body 110 on being used for preparing photovoltaic module's battery piece, then heat solder strip body 110, make solder strip body 110's temperature be greater than the melting point temperature of hot melt layer 111, hot melt layer 111 on the solder strip body 110 can melt, then the lowering temperature for hot melt layer 111 after melting solidifies once more, solder strip body 110 can laminate on the battery piece, repeat two adjacent battery pieces of above-mentioned step connection and can realize the series connection of a plurality of battery pieces.
It can be understood that the melting of the hot melt layer 111 on the surface of the solder strip body 110 can be performed simultaneously with the first and second strip films 120 and 130, which can make the connection between the metal layer 113 of the solder strip body 110 and the battery piece more reliable.
According to the welding strip provided by the embodiment of the application, in the use process of the welding strip, the hot melt layer 111 is melted, and then the welding strip body 110 is connected to the battery piece through re-solidification of the hot melt layer 111, so that on one hand, the connection between the welding strip and the battery piece is more reliable, the welding strip can be prevented from being separated from the battery piece, a gap between the welding strip and the battery piece can be prevented, and the power generation efficiency of a photovoltaic module is ensured; on the other hand, the traditional welding process is replaced, a welding pad is not required to be arranged, the cost is saved, the process is simplified, meanwhile, the shading area caused by fixing of the welding strip can be reduced, the optical loss of the photovoltaic module is favorably reduced, and the power generation efficiency of the photovoltaic module can be improved; on the other hand, the solder strip is fixed on the cell piece in a mode of melting the hot melt layer 111, the solder strip does not need to be fixed through welding equipment, the wire diameter of the solder strip is favorably further reduced, the shading area of the solder strip can be further reduced, and the power generation efficiency of the photovoltaic module is improved.
More preferably, the melting point of the material used to prepare hot melt layer 111 may be between 200 ℃ and 500 ℃.
It can be understood that, the solder strip provided by the embodiment of the application does not need to form a bonding pad on the battery piece in the process of connecting the solder strip to the battery piece, and the temperature of the solder strip in the installation process is between 50 ℃ and 500 ℃, so that compared with the traditional technology, the solder strip can avoid the damage of the battery piece caused by high temperature or the bonding pad, can ensure the integrity of the battery piece, and is favorable for further improving the power generation efficiency of the photovoltaic module.
It can be understood that, in order to ensure that the solder ribbon can function as a series cell, the solder ribbon body 110 needs to be made of a conductor material, and the lower the resistivity of the solder ribbon body 110, the higher the power generation efficiency of the photovoltaic module.
It can be understood that, the welding strip that this application embodiment provided, hot melt layer 111 cladding are on welding strip body 110, have set up hot melt layer 111 for the week side of welding strip body 110, in welding the strip use, weld the strip and can fix on the battery piece through arbitrary angle for the installation of welding the strip makes the series connection of a plurality of battery pieces more convenient, has reduced the technology degree of difficulty.
It is understood that the specific shape of the hot melt layer 111 is not limited in this application, for example, the cross section of the hot melt layer 111 may be circular, directional, or any irregular geometric figure.
In some examples, the hot melt layer 111 is made of an organic material having a melting point of 50 ℃ to 500 ℃.
The material for preparing the hot melt layer 111 can be an organic material, and through the selection of the organic material, in the preparation process of the solder strip, only the solder strip body 110 needs to penetrate through the organic material in a molten state, a layer of the organic material in a molten state can be hung on the solder strip body 110, and after the organic material in the molten state is cooled and solidified, the hot melt layer 111 can be formed on the solder strip body 110, so that the organic material is convenient to melt, the chemical property after melting is stable, and the preparation of the solder strip is convenient.
Meanwhile, the hot melt layer 111 is prepared from an organic material, so that on the one hand, the hot melt layer 111 is ensured to have good hydrophobicity, the photovoltaic module can be prevented from being infected by water vapor, and the welding strip is prevented from being separated from the battery piece due to the water vapor; in the second aspect, the good viscosity of the hot-melt layer 111 is ensured, and the hot-melt layer 111 can be better bonded to the battery piece after being melted.
In some examples, the organic material includes: at least one of polyethylene octene co-elastomer, ethylene-vinyl acetate and polyolefin thermoplastic elastomer, and cross-linking agent.
The organic material for preparing the hot melt layer 111 can comprise at least one of polyethylene octene co-elastomer, ethylene-vinyl acetate and polyolefin thermoplastic elastomer, and the preparation of the solder strip is facilitated, the hydrophobicity and viscosity of the hot melt layer 111 are ensured, and meanwhile, the light transmittance of the hot melt layer 111 can be improved, so that the hot melt layer 111 is close to a transparent state, the light shielding property of the solder strip can be greatly reduced, the optical loss of a photovoltaic module can be further reduced, and the power generation efficiency of the photovoltaic module is improved.
The material for preparing the hot melt layer 111 comprises a cross-linking agent, when the ambient temperature of the welding strip is higher than the melting point of the hot melt layer 111, the cross-linking agent can be cross-linked with at least one material of polyethylene octene co-elastomer, ethylene-vinyl acetate and polyolefin thermoplastic elastomer, so that the chemical property of the hot melt layer 111 can be stabilized, the melting point of the hot melt layer 111 can be further improved, the temperature of the hot melt layer 111 is raised again, the hot melt layer 111 can be melted by breaking through the new melting point of the hot melt layer 111, and then the temperature is lowered to solidify the hot melt layer 111, so that the welding strip can be installed.
In some examples, the solder strip body 110 is cylindrical, and the solder strip body includes: a metal post 112; a metal layer 113 coated on the metal pillar 112, and a hot melt layer 111 coated on the metal layer 113; wherein, the material for preparing the metal pillar 112 is different from the material for preparing the metal layer 113, and the material for preparing the metal layer 113 includes tin.
The solder strip body 110 is columnar, and the hot melt layer 111 is coated on the solder strip body 110, so that the solder strip is columnar, the solder strip can have a good refraction effect, and the photovoltaic module can have higher utilization efficiency of light energy.
Weld and take body 110 and included metal post 112 and metal level 113, it is bilayer structure to weld and take body 110, and inlayer and outer material are different, a material for preparing metal level 113 has included tin, after hot melt layer 111 melts, it can be preferred to contact with the battery piece to lie in the outer metal level 113 of welding and take body 110, then hot melt layer 111 melts once more and can fix welding and take body 110 on the battery piece, the selection through tin material, can make the metal level 113 better with the combination effect of battery piece, the passivation effect is better, can avoid 113 wearing and tearing of metal level or destroy the battery piece, do benefit to and reduce the holistic resistivity of battery body.
The metal column 112 and the metal layer 113 are made of different materials, the metal layer 113 can be made of a material with a better bonding effect with the cell, the metal column 112 is located inside the solder strip body 110, and the metal column 112 does not directly contact with the cell, so that the metal column 112 can be made of a material with lower resistivity, and power loss of the photovoltaic module in the current collection process is reduced.
In some examples, the material from which the metal posts 112 are made includes at least one of copper, silver, and gold.
The material for preparing the metal pillar 112 may include at least one of copper, silver and gold, and the resistivity of the metal pillar 112 can be reduced by selecting the material, so that the power loss of the photovoltaic module in the current collection process can be reduced, and the power generation efficiency of the photovoltaic module can be improved.
In some examples, the metal posts 112 are 100 to 350 microns in diameter; the thickness of the metal layer 113 is 5 to 20 micrometers; the thickness of the hot melt layer 111 is 10 to 3000 micrometers.
The diameter of the metal column 112 is 100 micrometers to 350 micrometers, so that the metal column 112 occupies most of the volume of the solder strip, and the metal column 112 is made of a material with lower resistivity, so that the overall resistivity of the solder strip is favorably reduced, and the mechanical strength of the solder strip can be improved.
The thickness of the metal layer 113 is 5-20 micrometers, and the metal layer 113 has the function of better contacting with the battery piece, so that the thickness of the metal layer 113 is lower than the wire diameter of the metal column 112, on one hand, the preparation of the metal layer 113 is facilitated, and in the preparation process, a layer of molten metal can be wrapped on the metal column 112 only by enabling the metal column 112 to penetrate through the molten metal tin, and the metal layer 113 can be formed after the metal tin is solidified; on the other hand, the cost of the welding strip is reduced.
The thickness of the hot melt layer 111 is 10-3000 microns, and the thickness of the hot melt layer 111 is reduced as much as possible while the solder strip can be firmly fixed on the battery body through the selection of the thickness range, so that the preparation of the hot melt layer 111 is facilitated, and the cost of the solder strip is reduced.
Preferably, the thickness of the hot melt layer 111 is 10 to 1000 micrometers.
It can be understood that the wire diameter of the solder strip is between 115 micrometers and 400 micrometers through the determination of the wire diameter of the metal pillar 112 and the determination of the thicknesses of the metal layer 113 and the hot melt layer 111, so that the wire diameter of the solder strip is greatly reduced, the light shielding performance of the solder strip is reduced, the optical loss of a photovoltaic module is favorably reduced, and the power generation efficiency of the photovoltaic module can be improved.
In some examples, the thermal melting layer 111 is a plurality of layers, the plurality of thermal melting layers 111 are coated on the solder strip body 110 at intervals, and the solder strip body 110 between two adjacent thermal melting layers 111 is in an exposed state.
The number of the hot melting layers 111 can be multiple, the multiple hot melting layers 111 can be arranged on the welding strip body 110 at intervals, namely, the hot melting layers 111 can be discontinuous, so that the use of materials of the hot melting layers 111 can be reduced, and the hot melting layers 111 are formed only in the area where the welding strip needs to be fixed, which is beneficial to reducing the cost of the welding strip.
As shown in fig. 3, according to a second aspect of the embodiments of the present application, there is provided a photovoltaic module including: the solder strip of any one of the above technical schemes; a first cell piece 210, wherein the first strip-shaped film 120 is used for adhering the solder strip body 110 to a first surface of the first cell piece 210; the second cell piece 220 and the second band-shaped film 130 are used for adhering the solder strip body 110 to the second surface of the second cell piece 220 so as to connect the first cell piece 210 and the second cell piece 220 in series.
The photovoltaic module that this application embodiment provided has included above-mentioned technical scheme's solder strip, and consequently the photovoltaic module that this application embodiment provided has possessed all beneficial effects of above-mentioned technical scheme solder strip.
The photovoltaic module that this application embodiment provided, first battery piece 210 can be the same with second battery piece 220 structure, the first surface of first battery piece 210 is the front of battery piece, the second surface of second battery piece 220 is the back of battery piece, the solder strip body 110 of the photovoltaic module that this application embodiment provided can bond in a surface of first battery piece 210 through first banded membrane 120, bond in another surface of second battery piece 220 through second banded membrane 130, so set up and to realize the series connection of two battery pieces, so the circulation can realize the series connection of a plurality of battery pieces. According to the photovoltaic module provided by the embodiment of the application, the welding strip body 110 can be bonded on the cell piece through the first strip-shaped film 120 and the second strip-shaped film 130 to replace the traditional welding process, so that on one hand, the temperature required by the series connection of the cell piece is greatly reduced, and the property change of a transparent conductive oxide film with a preset thickness deposited on the original amorphous silicon layer of the cell piece due to high temperature can be avoided, thereby ensuring the performance of the photovoltaic module; on the other hand, the first strip-shaped film 120 and the second strip-shaped film 130 are arranged to facilitate positioning and fixing of the solder strip on the cell piece, so that dislocation of the solder strip can be avoided, and the quality of the photovoltaic module is further guaranteed.
As shown in fig. 12, according to a third aspect of the embodiments of the present application, there is provided a method for manufacturing a photovoltaic module, the method for manufacturing a photovoltaic module according to the above-mentioned technical solution, the method including:
step 301: and providing a first battery piece, and adhering a first strip-shaped film of the welding strip to the first surface of the first battery piece. It is understood that the first tape-shaped film is bonded to the first cell piece, and the solder ribbon may be preliminarily positioned.
Step 302: and providing a second battery piece, and adhering a second strip-shaped film of the welding strip to the second surface of the second battery piece. It will be appreciated that the bonding of the second tape-like film to the second cell piece can provide a preliminary positioning of the solder strip.
Step 303: the first and second strip films are heated to melt at least a portion of the first and second strip films. The first strip-shaped film and the second strip-shaped film can be melted by heating the first strip-shaped film and the second strip-shaped film, so that on one hand, the adhesiveness of the first strip-shaped film and the second strip-shaped film can be improved, and the welding strip can be conveniently adhered to the battery piece; on the other hand melts first banded membrane and the banded membrane of second, welds the area and can invaginate in first banded membrane and the banded membrane of second under the effect of pressure, and the first banded membrane after solidifying again and the banded membrane of second can wrap up better and weld the area body, can make the fixed inseparabler between welding area body and the battery piece, can make the fixed more reliable of welding the area body.
According to the preparation method of the photovoltaic module, the first strip-shaped film and the second strip-shaped film are respectively bonded with the first cell piece and the second cell piece to enable the first cell piece and the second cell piece to be preliminarily fixed, and then the first strip-shaped film and the second strip-shaped film are heated to enable the first strip-shaped film and the second strip-shaped film to be molten to enable the connection between the welding strip and the cell pieces to be more reliable. The traditional welding process is replaced, on one hand, the temperature required by the series connection of the cell is greatly reduced, so that the property change of a transparent conductive oxide film with a preset thickness deposited on the original amorphous silicon layer of the cell due to high temperature can be avoided, and the performance of the photovoltaic module is guaranteed; on the other hand, the setting through first banded membrane and second banded membrane is convenient for weld the location and the fixed of area on the battery piece, can avoid welding the area and appear the dislocation, has further ensured photovoltaic module's quality.
In one possible embodiment, the preparation method further comprises: arranging a plurality of first glue points on the first surface of the first battery piece, and positioning the first strip-shaped film through the plurality of first glue points; and arranging a plurality of second glue points on the second surface of the second battery piece, and positioning the second strip-shaped film through the plurality of second glue points.
In the technical scheme, the preparation method further comprises the steps of coating the first glue points on the first cell piece, coating the second glue points on the second cell piece, and preliminarily fixing the first strip-shaped film and the second strip-shaped film through the arrangement of the first glue points and the second glue points, so that the probability of dislocation of the welding strip can be further reduced, and the quality of the photovoltaic module can be improved.
In one possible embodiment, the step of providing a plurality of first glue sites on the first surface of the first battery piece includes: acquiring image information of a first battery piece; analyzing the image information to obtain surface area information of the first battery piece and grid line position information on the battery piece; acquiring conveying speed information of a conveying belt; a plurality of first glue points distributed in an array mode are arranged on the first surface of the first battery piece based on the surface area information, the grid line position information and the conveying speed information.
In this technical scheme, the coating mode of first gluey point has further been improved, acquire the image information of battery piece earlier, can learn the area information and the grid line position of first battery piece, further acquire the transmission speed of transmission band again, and based on surface area information, grid line position information and transmission speed information set up a plurality of first gluey points that are array distribution at the first surface of first battery piece, can make the coating of first gluey point more even, the position is more accurate, can make the pre-fixation of welding the area more accurate.
It is understood that after the solder strip is connected to the first cell piece and the second cell piece, pressure may be applied to the solder strip so that the solder strip is connected to the grid lines on the first cell piece and the second cell piece, and the grid lines may be made of silver material in order to improve the conductive efficiency.
As shown in fig. 4 to 12, according to a fourth aspect of the embodiments of the present application, there is provided a production apparatus for a photovoltaic module, for preparing the photovoltaic module according to the above technical solution, the production apparatus including: the conveying belt 410 is used for carrying the battery piece; the fixing assembly 420, the fixing assembly 420 includes an elastic part 421 and a pressing roller 422, the pressing roller 422 is connected to the elastic part 421, and the pressing roller 422 is used for applying pressure to the solder ribbon on the battery piece.
In this embodiment, a production apparatus for preparing the photovoltaic module according to the above technical solution is provided, in a production process of the photovoltaic module, a plurality of battery pieces may be disposed on the conveyor belt 410, the battery pieces may be transported through the conveyor belt 410, and the solder strip may be pressed on the battery pieces through the disposition of the fixing assembly 420, that is, the solder strip may be preliminarily fixed on the battery pieces.
In the production equipment provided by the embodiment of the application, considering that the solder strip is usually required to be pressed on the cell piece through the pressing block 430 when the photovoltaic module is prepared in the conventional technology, however, in the process of connecting the solder strip to the cell piece, the pressing block 430 is inevitably required to be separated from the cell piece, if the solder strip is separated from the cell piece, the solder strip may be dislocated, through the arrangement of the elastic part 421 and the pressing roller 422, the pressing roller 422 can be abutted against the solder strip in the process of adhering or fixing the solder strip, and the pressing roller 422 can be more adhered to the solder strip, so that the fixing of the solder strip can be more reliable; meanwhile, rigid mechanical contact between the compression roller 422 and the cell can be avoided through the arrangement of the elastic part 421, the cell can be prevented from being broken by the compression roller 422, the yield of the photovoltaic module is improved, and the quality of the photovoltaic module is guaranteed.
As shown in fig. 5, 6 and 12, in one possible embodiment, the elastic part 421 includes: a connecting rod 4211, wherein a containing space is formed in the connecting rod 4211; an elastic member 4212 is disposed in the receiving space, and has one end connected to the link 4211 and the other end connected to the pressure roller 422.
The elastic part 421 may include a link 4211 and an elastic member 4212 disposed inside the link 4211, the elastic connection of the pressing roller 422 may be achieved by the pressing roller 422 being connected to the elastic member 4212, and the elastic member 4212 may apply a pushing force to the pressing roller 422, so that the pressing roller 422 may be close to the welding strip as much as possible, thereby ensuring the reliability of the positioning of the welding strip.
It is understood that the elastic member 4212 may be a spring.
As shown in fig. 12, in a possible embodiment, the elastic portion 421 further includes: the detection assembly is arranged on the inner wall of the connecting rod 4211; an adjusting shaft 4213 connected with the connecting rod 4211 in a sliding way, and one end of an elastic piece 4212 is used for abutting against the adjusting shaft 4213; and the controller is connected with the adjusting shaft 4213, acquires deformation amount information of the elastic piece based on the detection assembly, and adjusts the length of the adjusting shaft 4213 in the connecting rod 4211 based on the deformation amount information.
In this technical scheme, the elastic part can also include detection components, adjusting shaft 4213 and controller, can set for the pressure threshold value to the controller in the use, and then the controller acquires the deformation information of elastic component, and be equivalent to pressure information with deformation information, further compare pressure information and pressure threshold value, adjust the position that adjusting shaft 4213 was located based on comparing the structure, make elastic part 421 can output and be close to or equal to the pressure threshold value with the pressure threshold value, in order to improve the stability that elastic part 421 exerted pressure to the battery piece, the quality of battery piece has been guaranteed.
It is understood that the specific value of the pressure threshold can be determined based on the type of the battery piece and the type of the solder strip based on the expected bonding strength.
In some examples, the step of adjusting the position of the adjustment axis based on the alignment structure comprises:
under the condition that the pressure information is greater than the pressure threshold value information and the difference value between the pressure information and the pressure threshold value information is greater than a first threshold value, controlling the adjusting shaft to move in the direction away from the connecting rod;
under the condition that the pressure information is smaller than the pressure threshold value information and the difference value between the pressure information and the pressure threshold value information is larger than a first threshold value, controlling the adjusting shaft to move in the direction close to the connecting rod;
and when the difference between the pressure information and the pressure threshold value is less than or equal to a first threshold value, controlling the adjusting shaft to maintain the current position.
With such an arrangement, when the difference between the pressure information and the pressure threshold is greater than or equal to the first threshold, it indicates that the deviation between the currently applied pressure of the elastic part and the expected pressure is large, in which case the position of the adjusting shaft needs to be adjusted to limit the movement space of the elastic part and adjust the elastic force output by the elastic part.
Under the condition that the pressure information is greater than the pressure threshold value information and the difference value between the pressure information and the pressure threshold value information is greater than the first threshold value, the pressure output by the elastic part is over-large, the control and adjustment shaft moves in the direction away from the connecting rod under the condition to enable the deformation space of the elastic part to be enlarged, and the elastic force of the elastic part can be reduced through the arrangement.
Under the condition that the pressure information is smaller than the pressure threshold value information and the difference value between the pressure information and the pressure threshold value information is larger than the first threshold value, the pressure output by the elastic part is insufficient, the control adjusting shaft moves in the direction close to the connecting rod under the condition, the deformation space of the elastic part can be limited, and the elastic force of the elastic part can be increased through the arrangement.
As shown in fig. 12, in one possible embodiment, the detection assembly includes: the grating scale sensor 4214, the grating scale sensor 4214 is arranged along the length direction of the link 4211.
In this technical solution, the detection component may include a grating ruler sensor 4214, and by calibrating the position of the pressure roller 422 or the elastic member 4212, the compression amount of the elastic member 4212 may be further determined, and the pressure information of the elastic member 4212 may be determined by the compression force of the elastic member 4212.
In one possible embodiment, the resilient portion 421 is made of a rubber material.
As shown in fig. 7, in one possible embodiment, the pressure roller 422 includes: a connection portion 4221 connected to the elastic portion 421; a roller body 4222 connected to the connection portion 4221, the roller body 4222 being made of an elastic material; the roller body 4222 is provided with a groove 4223, and the width of the groove 4223 is matched with the width of the welding strip.
In this embodiment, the pressing roller 422 may include a coupling portion 4221 and a roller body 4222 coupled to the coupling portion 4221, and is configured to facilitate coupling of the roller body 4222 with the elastic portion 421. It will be appreciated that the roller 4222 may be rotated relative to the link 4221 to enhance the bonding of the solder strips.
The roller 4222 is provided with a groove 4223, the width of the groove 4223 is adapted to the width of the welding strip, and thus the welding strip can be guided by the roller 4222, so that the welding strip can be better attached to the battery piece along the expected direction.
As shown in fig. 9, in a possible embodiment, the production apparatus further comprises: and the pressing block 430 is used for applying pressure to the welding strip arranged on the cell body.
The production equipment can also comprise a pressing block 430, and the welding strip which is primarily fixed can be pressed through the pressing block 430. It can be understood that, along the direction of conveyance of transmission band 410, fixed subassembly 420 sets up at the end of direction of conveyance, and briquetting 430 can set up the front end on the direction of conveyance, carries out the pressfitting through briquetting 430 to accomplishing preliminary fixed solder strip promptly, carries out the pressfitting through fixed subassembly 420 to the solder strip that will go on fixing, has further improved the accuracy of solder strip location.
As shown in fig. 10 and 11, in a possible embodiment, the production apparatus further comprises: the dispensing assembly 440 is used for dispensing a dispensing point for the battery piece disposed on the conveying belt 410.
In this technical scheme, production facility has still included some glue subassemblies 440, through some glue subassemblies 440's setting, can be to the coating film gluing point on the battery piece, can tentatively fix first banded membrane 120 and second banded membrane 130 through the setting of gluing point, can further reduce the probability that the dislocation appears in the solder strip, can improve photovoltaic module's quality.
In one possible embodiment, the dispensing assembly 440 includes: a first slide rail 441 disposed at one side of the conveyor 410 along a length direction of the conveyor 410; a second slide rail 442 slidably connected to the first slide rail 441 along the width direction of the conveyor 410; and the dispenser 443 is slidably disposed on the second slide rail 442.
The dispensing assembly 440 includes a first slide rail 441, a second slide rail 442 and a dispensing machine 443, and the position of the dispensing machine 443 can be adjusted by the arrangement of the first slide rail 441 and the second slide rail 442, so as to facilitate uniform dispensing on the battery sheet.
In some examples, the dispensing assembly 440 may further include an image capturing device, and the image capturing device may obtain the position and shape of the battery piece, so as to further improve the uniformity of dispensing distribution.
In a possible embodiment, the production facility further comprises: an output roller 450 disposed at one side of the conveying belt 410 for outputting the conveying belt; and a limiting member 460 disposed between the transfer belt 410 and the output roller 450, the limiting member 460 having a transfer space formed thereon through which the solder ribbon is transferred onto the transfer belt 410.
In this technical scheme, production facility has still included output roller 450 and locating part 460, welds the area and can be around establishing on output roller 450, through the rotation of output roller 450, can drive the output that welds the area, and weld the area and need pass the transport space on the locating part 460 and just can carry on the transmission band 410 on, can carry on spacingly to welding the area through the setting of locating part 460, can avoid welding the area and appear the dislocation in output process, be convenient for follow-up will weld the area and firmly fix on the battery piece.
In some examples, the production apparatus may further include a heating member, and the first and second band-shaped films 120 and 130 may be heated by the heating member, so that the first and second band-shaped films 120 and 130 may be melted to facilitate fixing of the solder strip.
In some examples, the pressure roller 422 and the pressure block 430 may also be made of an elastic material to better compress the weld tape, e.g., the pressure block 430 and the pressure roller 422 may be made of a rubber material.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (20)
1. A solder strip, comprising:
a weld band body;
a first strip film connected to a partial region of the solder strip body;
and the second strip-shaped film is connected to the other partial area of the welding strip body, and the arrangement direction of the first strip-shaped film is opposite to that of the second strip-shaped film.
2. The solder strip of claim 1, further comprising:
the first isolating layer is arranged on one side, away from the welding strip body, of the first strip-shaped film;
and the second isolation layer is arranged on one side of the second strip-shaped film, which deviates from the welding strip body.
3. The solder ribbon of claim 1, wherein the first and second strip-like films are identical in structure, each of the first and second strip-like films including a first melting layer attached to the solder ribbon body, the first melting layer being made of a modified resin material having a melting point of 60 ℃ to 160 ℃.
4. The solder ribbon of claim 3, wherein the first and second ribbon films further comprise:
and the solidified layer is connected with the melting layer, and the melting point of the solidified layer is greater than that of the first melting layer.
5. The solder ribbon of claim 4, wherein the first and second ribbon films further comprise:
the second melting layer is connected to one side, away from the first melting layer, of the curing layer, and the melting point of the second melting layer is 60-160 ℃.
6. The solder ribbon of claim 1, further comprising:
the first covering film is covered on the first strip-shaped film, and part of the welding strip body is positioned between the first covering film and the first strip-shaped film;
and the second cover film covers the second strip-shaped film, and the other part of the solder strip body is positioned between the second cover film and the second strip-shaped film.
7. Solder strip according to claim 1,
the length of the first strip-shaped film is matched with the length or the width of the battery piece, and the width of the first strip-shaped film is 1 mm-10 mm;
the length of the second strip-shaped film is matched with the length or the width of the battery piece, and the width of the second strip-shaped film is 1 mm-10 mm.
8. A photovoltaic module, comprising:
a weld bead as defined in any one of claims 1 to 7;
the first battery piece is used for bonding the welding strip body to the first surface of the first battery piece;
and the second strip-shaped film is used for bonding the welding strip body to the second surface of the second battery piece so as to connect the first battery piece and the second battery piece in series.
9. A method for producing a photovoltaic module, for producing the photovoltaic module according to claim 8, comprising:
providing a first battery piece, and adhering a first strip-shaped film of a welding strip to a first surface of the first battery piece;
providing a second battery piece, and bonding a second strip-shaped film of the welding strip on a second surface of the second battery piece;
heating the first and second strip-shaped films to melt at least a portion of the first and second strip-shaped films.
10. The method of manufacturing according to claim 9, further comprising:
arranging a plurality of first glue points on the first surface of the first battery piece, and positioning the first strip-shaped film through the plurality of first glue points;
and arranging a plurality of second glue points on the second surface of the second battery piece, and positioning the second strip-shaped film through the plurality of second glue points.
11. The method of claim 9, wherein the step of providing the plurality of first glue sites on the first surface of the first cell piece comprises:
acquiring image information of the first battery piece;
analyzing the image information to obtain the surface area information of the first battery piece and the grid line position information on the battery piece;
acquiring conveying speed information of a conveying belt;
and arranging a plurality of first glue dots distributed in an array on the first surface of the first battery piece based on the surface area information, the grid line position information and the conveying speed information.
12. A production apparatus for a photovoltaic module, characterized by being used for preparing the photovoltaic module according to claim 8, the production apparatus comprising:
the conveying belt is used for bearing the battery piece;
the fixing assembly comprises an elastic part and a pressing roller, the pressing roller is connected to the elastic part, and the pressing roller is used for applying pressure to the welding strips on the battery piece.
13. The production apparatus according to claim 12,
the elastic portion includes:
the connecting rod is internally provided with an accommodating space;
the elastic piece is arranged in the accommodating space, one end of the elastic piece is connected to the connecting rod, and the other end of the elastic piece is connected to the compression roller; or
The elastic portion is made of a rubber material.
14. The production apparatus as claimed in claim 13, wherein the elastic portion further comprises:
the detection assembly is arranged on the inner wall of the connecting rod;
the adjusting shaft is connected to the connecting rod in a sliding mode, and one end of the elastic piece is used for abutting against the adjusting shaft;
the controller is connected to the adjusting shaft, and the controller acquires deformation amount information of the elastic piece based on the detection assembly and adjusts the length of the adjusting shaft in the connecting rod based on the deformation amount information.
15. The production apparatus of claim 14, wherein the detection assembly comprises:
and the grating scale sensor is arranged along the length direction of the connecting rod.
16. The production apparatus according to claim 12, wherein the press roll comprises:
a connecting part connected to the elastic part;
the roller body is connected to the connecting part and made of elastic materials;
and a groove is formed on the roller body, and the width of the groove is adapted to the width of the welding strip.
17. The production apparatus according to claim 12, further comprising:
and the pressing block is used for applying pressure to the welding strip arranged on the cell body.
18. The production apparatus according to any one of claims 12 to 17, further comprising:
and the dispensing assembly is used for setting a dispensing point for the battery piece arranged on the conveying belt.
19. The manufacturing apparatus of claim 18, wherein the dispensing assembly comprises:
the first sliding rail is arranged on one side of the conveying belt along the length direction of the conveying belt;
the second sliding rail is connected to the first sliding rail in a sliding manner along the width direction of the conveying belt;
and the glue dispenser is arranged on the second sliding rail in a sliding manner.
20. The production apparatus according to any one of claims 12 to 17, further comprising:
the output roller is arranged on one side of the conveying belt and used for outputting and conveying the welding belt;
the locating part sets up the transmission band with between the output roller, be formed with conveying space on the locating part, it passes to weld the area conveying space carries on the transmission band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210476086.XA CN114975663B (en) | 2022-04-29 | Solder strip, photovoltaic module, and preparation method and equipment of photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210476086.XA CN114975663B (en) | 2022-04-29 | Solder strip, photovoltaic module, and preparation method and equipment of photovoltaic module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114975663A true CN114975663A (en) | 2022-08-30 |
| CN114975663B CN114975663B (en) | 2024-07-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295655A (en) * | 2022-10-08 | 2022-11-04 | 浙江制能科技有限公司 | IBC battery pack and manufacturing method thereof |
| CN116705913A (en) * | 2023-07-18 | 2023-09-05 | 杭州康奋威科技股份有限公司 | Production method and equipment of solar photovoltaic module without main grid |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130269748A1 (en) * | 2012-04-17 | 2013-10-17 | Global Solar Energy, Inc. | Integrated thin film solar cell interconnection |
| EP3493277A1 (en) * | 2017-11-30 | 2019-06-05 | Commissariat à l'énergie atomique et aux énergies alternatives | Method for interconnecting photovoltaic cells with an electrode provided with metal nanowires |
| CN212648256U (en) * | 2020-08-11 | 2021-03-02 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
| CN214588884U (en) * | 2021-04-23 | 2021-11-02 | 山东九达电力工程有限公司 | High photovoltaic module packaging hardware of buckling of security |
| CN113611763A (en) * | 2021-08-02 | 2021-11-05 | 上海晶澳太阳能科技有限公司 | Photovoltaic module and preparation method thereof |
| WO2021232511A1 (en) * | 2020-05-20 | 2021-11-25 | 浙江晶科能源有限公司 | Barrier-type photovoltaic welding strip capable of reducing damp-heat attenuation |
| CN113921657A (en) * | 2021-09-30 | 2022-01-11 | 上海德瀛睿创半导体科技有限公司 | Solder strip fixing equipment and method |
| CN114068735A (en) * | 2021-11-11 | 2022-02-18 | 任佳新 | Manufacturing method of heterojunction photovoltaic cell assembly |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130269748A1 (en) * | 2012-04-17 | 2013-10-17 | Global Solar Energy, Inc. | Integrated thin film solar cell interconnection |
| EP3493277A1 (en) * | 2017-11-30 | 2019-06-05 | Commissariat à l'énergie atomique et aux énergies alternatives | Method for interconnecting photovoltaic cells with an electrode provided with metal nanowires |
| WO2021232511A1 (en) * | 2020-05-20 | 2021-11-25 | 浙江晶科能源有限公司 | Barrier-type photovoltaic welding strip capable of reducing damp-heat attenuation |
| CN212648256U (en) * | 2020-08-11 | 2021-03-02 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic module |
| CN214588884U (en) * | 2021-04-23 | 2021-11-02 | 山东九达电力工程有限公司 | High photovoltaic module packaging hardware of buckling of security |
| CN113611763A (en) * | 2021-08-02 | 2021-11-05 | 上海晶澳太阳能科技有限公司 | Photovoltaic module and preparation method thereof |
| CN113921657A (en) * | 2021-09-30 | 2022-01-11 | 上海德瀛睿创半导体科技有限公司 | Solder strip fixing equipment and method |
| CN114068735A (en) * | 2021-11-11 | 2022-02-18 | 任佳新 | Manufacturing method of heterojunction photovoltaic cell assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115295655A (en) * | 2022-10-08 | 2022-11-04 | 浙江制能科技有限公司 | IBC battery pack and manufacturing method thereof |
| CN116705913A (en) * | 2023-07-18 | 2023-09-05 | 杭州康奋威科技股份有限公司 | Production method and equipment of solar photovoltaic module without main grid |
| CN116705913B (en) * | 2023-07-18 | 2024-05-03 | 杭州康奋威科技股份有限公司 | Production method and equipment of solar photovoltaic module without main grid |
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