CN218849508U - Solder strip and photovoltaic module - Google Patents
Solder strip and photovoltaic module Download PDFInfo
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- CN218849508U CN218849508U CN202221761953.6U CN202221761953U CN218849508U CN 218849508 U CN218849508 U CN 218849508U CN 202221761953 U CN202221761953 U CN 202221761953U CN 218849508 U CN218849508 U CN 218849508U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The embodiment of the application discloses solder strip and photovoltaic module, wherein solder strip includes: a weld band body; the fixing belt is used for being connected with the battery piece; the light-cured adhesive layer is arranged between the fixing band and the welding band body, and the welding band body is connected with the fixing band through the light-cured adhesive layer. The embodiment of the application provides a weld the area, weld the area body and pass through the light solid glue layer and be connected in the fixed band, in the in-process of welding the area preparation, can set up liquid light solid glue on the fixed band, then will weld the area body and set up on the fixed band, rethread illumination makes the light solid glue solidification in order to form the light solid glue layer, in welding the area course of working, need not to heat and welds area body or fixed band, can not cause the problem that the deformation or the uneven heating that causes the fixed band because of the heating caused the fixed band, make the shape of welding the area more regular, when welding the area and carrying out the interconnection with the battery piece, can make the welding area laminate in the battery piece more, can improve photovoltaic module's quality, can improve the generating efficiency.
Description
Technical Field
The embodiment of the application relates to the technical field of photovoltaics, in particular to a solder strip and a photovoltaic module.
Background
Photovoltaic cell needs to establish ties a plurality of battery pieces and forms the battery cluster among the prior art to play the effect of converging, mostly with conductor lug direct welding in the battery piece among the prior art, welding temperature need be above 170 ℃, there are some solder strips to connect in the battery piece through the mode of bonding based on this prior art, but solder strip and the sticky tape that is used for pasting solder strip are connected insecure, and the sticky tape produces deformation easily when solder strip is connected with the sticky tape, and then can influence the joint strength of solder strip and battery piece, influence photovoltaic cell's quality.
SUMMERY OF THE UTILITY MODEL
The present invention aims at least solving one of the technical problems existing in the prior art or the related art.
To this end, a first aspect of the present invention provides a solder strip.
A second aspect of the present invention provides a photovoltaic module.
In view of this, according to a first aspect of the embodiments of the present application, there is provided a solder strip, including:
a weld band body;
the fixing belt is used for being connected to the battery piece;
the light-cured adhesive layer is arranged between the fixing band and the welding band body, and the welding band body is connected to the fixing band through the light-cured adhesive layer.
In one possible embodiment, the photocurable adhesive layer is a UV photocurable adhesive layer.
In a possible embodiment, the light curing glue layer is in a dot shape or a line segment shape;
under the condition that the light curing adhesive layer is in a dot shape, the diameter of the light curing adhesive layer is larger than the width of the welding strip body;
and under the condition that the light curing glue layer is in a line segment shape, the width of the light curing glue layer is greater than that of the welding strip body.
In a possible embodiment, a sinking groove is formed on the fixing belt, and the light-curing adhesive layer is arranged in the sinking groove.
In a possible embodiment, the number of the light curing adhesive layers is multiple, and the multiple light curing adhesive layers are arranged at intervals along the length direction of the solder strip body.
In one possible embodiment, the melting point of the side of the fastening tape facing the solder tape body is 70 to 115 ℃.
In one possible embodiment, the fixing band includes:
the adhesive layer has a melting point of 70-115 ℃;
the isolating layer is connected to the bonding layer, and the melting point of the isolating layer is greater than or equal to 170 ℃.
In one possible embodiment, the solder strip body includes:
a conductor;
and the hot melting layer is coated on the conductor part and is made of a material with the melting point of 100-500 ℃.
In one possible embodiment of the method according to the invention,
the hot melt layer is made of an organic material.
According to a second aspect of embodiments of the present application, there is provided a photovoltaic module, comprising:
at least two battery pieces;
according to the welding strip in any technical scheme, at least two battery pieces are connected in series through the welding strip.
Compared with the prior art, the utility model discloses at least, including following beneficial effect: the welding strip provided by the embodiment of the application comprises a welding strip body, a fixing strip and a light-cured adhesive layer, wherein the welding strip body can be connected to a battery piece through the fixing strip in the use process, the fixing strip can be connected to the battery piece in an adhesion mode, the temperature for connecting the welding strip and the battery piece can be reduced, the temperature for interconnecting circuits of the battery piece is greatly reduced, a photovoltaic module can be protected, the damage of the battery piece of the photovoltaic module due to overhigh welding temperature is avoided, and the service life and the performance of the photovoltaic module are improved; the embodiment of the application provides a weld the area, weld the area body and pass through the light solid glue layer and be connected in the fixed band, in the in-process of welding the area preparation, can set up liquid light solid glue on the fixed band, then will weld the area body and set up on the fixed band, rethread illumination makes the light solid glue solidification in order to form the light solid glue layer, in welding the area course of working, need not to heat and welds area body or fixed band, can not cause the problem that the deformation or the uneven heating that causes the fixed band because of the heating caused the fixed band, make the shape of welding the area more regular, when welding the area and carrying out the interconnection with the battery piece, can make the welding area laminate in the battery piece more, can improve photovoltaic module's quality, can improve the generating efficiency.
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 of another embodiment provided herein;
FIG. 3 is a schematic structural diagram illustrating a position of a light-cured adhesive layer of a solder strip according to an embodiment of the disclosure;
fig. 4 is a schematic structural diagram of a setting position of a photocurable adhesive layer of a solder strip according to another embodiment provided in the present application;
FIG. 5 is a schematic structural diagram illustrating a process of forming a light-cured adhesive layer of a solder strip according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram illustrating a process of forming a light-cured adhesive layer of a solder strip according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a solder strip body of a solder strip according to an embodiment provided in the present application.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 7 is:
110 welding strip bodies, 120 fixing strips and 130 light curing adhesive layers;
111 conductor, 112 thermofusible layer.
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 7, according to a first aspect of an embodiment of the present application, there is provided a solder strip including: a solder strip body 110; the fixing belt 120, the fixing belt 120 is used for connecting to the battery piece; the light-cured adhesive layer 130 is disposed between the fixing tape 120 and the welding tape body 110, and the welding tape body 110 is connected to the fixing tape 120 through the light-cured adhesive layer 130.
The solder strip provided by the embodiment of the application comprises a solder strip body 110, a fixing band 120 and a light-cured adhesive layer 130, wherein the solder strip body 110 can be connected to a battery piece through the fixing band 120 in the use process, and the fixing band 120 can be connected to the battery piece in an adhesion mode, so that the temperature for connecting the solder strip and the battery piece can be reduced, the temperature for interconnecting circuits of the battery piece is greatly reduced, a photovoltaic module can be protected, the battery piece of the photovoltaic module is prevented from being damaged due to overhigh welding temperature, and the service life and the performance of the photovoltaic module are improved; the embodiment of the application provides a weld the area, weld area body 110 and connect in fixed band 120 through the light solid glue layer 130, in the in-process of welding the area preparation, can set up liquid light solid glue on fixed band 120, then will weld area body 110 and set up on fixed band 120, rethread illumination makes the light solid glue solidification in order to form light solid glue layer 130, in welding the area course of working, need not to heat and weld area body 110 or fixed band 120, can not cause the problem that causes fixed band 120 and adhesion uniformity because of the deformation or the uneven heating that cause fixed band 120 of heating, make the shape of welding the area more regular, when welding the area and carrying out the interconnection with the battery piece, can make the welding area laminate in the battery piece more, can improve photovoltaic module's quality, can improve the generating efficiency.
It is understood that the present application considers that the fixing tape 120 is made to have a certain adhesiveness by heating the fixing tape 120 in the conventional art, such as: the fixing tape 120 is adhered to the welding tape body 110 in a partial region, and a connection relationship between the fixing tape 120 and the partial region is not established in the partial region, or the fixing tape 120 is excessively melted due to excessive heating of a region on the fixing tape 120, which may cause adhesion between the carrier layer and the lead and reliability of the subsequent welding tape covering the battery piece. Utilize light cured adhesive layer 130 to connect fixed band 120 and weld and take body 110 in this application embodiment, and need not to heat fixed band 120 at the in-process that welds and take body 110 to be connected with fixed band 120, can stop fixed band 120 and cause deformation because of the heating, can adjust fixed band 120 and the hookup location who welds and take body 110 through the position of controlling light cured adhesive layer 130 simultaneously, make the hookup location who welds and take body 110 controllable, further ensured the quality of welding the area.
As shown in fig. 5 and 6, in one possible embodiment, the light curing adhesive layer 130 is a UV light curing adhesive layer 130.
In the technical scheme, a style of the light curing adhesive layer 130 is further provided, the light curing adhesive layer 130 can be a UV light curing adhesive layer 130, that is, the light curing adhesive layer 130 can be formed by UV light curing adhesive, and the UV light curing adhesive has excellent adhesive effect for adhering crystals, glass, metal, plastics and various materials, so that the welding strip body 110 can be ensured to establish a stable connection relationship with the fixing strip 120 through the light curing adhesive layer 130; the UV light-cured adhesive has high bonding strength, good transparency, good water resistance and strong peeling strength, and when the welding strip is connected to the cell, the light transmittance of the cell can be guaranteed, so that the power generation performance of the photovoltaic module is improved; the UV light-cured adhesive does not have the internal stress cracking phenomenon after being cured, has excellent low-temperature resistance, high-temperature resistance and high-humidity resistance, can enable the photovoltaic module to be suitable for severe environment, and is beneficial to popularization of the photovoltaic module; the UV light-cured adhesive has high curing speed, can be positioned for several seconds, can reach the highest strength in one minute, and greatly improves the preparation efficiency of the welding strip; the UV light-cured adhesive is completely transparent after being cured, the product does not turn yellow or whiten for a long time, the transmittance of a cell can be guaranteed, and the power generation performance of the photovoltaic module is further improved; the UV light-cured adhesive can be applied by automatic mechanical adhesive dispensing or screen printing, and is convenient to operate.
It can be understood that, when light solid glue layer 130 is UV light solid glue layer 130, in the welding strip preparation process, can set up liquid UV light solid glue on fixed band 120, then will weld and take body 110 to set up on fixed band 120, the rethread UV light makes UV light solid glue solidify in order to form light solid glue layer 130, in the welding strip course of working, need not to heat and weld and take body 110 or fixed band 120, can not cause the problem that deformation or heating inequality that cause fixed band 120 of heating because of the heating cause fixed band 120 and adhesion uniformity, make the shape of welding strip more regular, when welding the strip and carrying out the interconnection with the battery piece, can make the welding strip laminate in the battery piece more, can improve photovoltaic module's quality, can improve the generating efficiency
As shown in fig. 3 and 4, in one possible embodiment, the light-curing adhesive layer 130 is in a dot shape or a line shape; wherein, under the condition that the light curing adhesive layer 130 is in a dot shape, the diameter of the light curing adhesive layer 130 is larger than the width of the solder strip body 110; in the case that the optical adhesive layer 130 is in a line segment shape, the width of the optical adhesive layer 130 is greater than the width of the solder strip body 110.
Light solid glue film 130 is punctiform or line segment form, so that the setting of light solid glue film 130, when light solid glue film 130 is the punctiform form, the subregion of welding area body 110 is connected through between light solid glue film 130 and the fixed band 120, will weld through the mode of gluing promptly and take body 110 to fix to fixed band 120, when fixed band 120 is heated and is connected with the battery piece, the fixed band 120 that is heated can carry out the secondary with welding area body 110 and consolidate, so set up the setting of light solid glue film 130 of being convenient for, can simplify the technology degree of difficulty.
In this technical scheme, the light-cured adhesive layer 130 can also be in a line segment shape, that is, the connection relation between all or a large part of the area of the solder strip body 110 and the fixing band 120 is established through the light-cured adhesive layer 130, so that the solder strip body 110 can be more firmly fixed, the flatness of the solder strip is higher, and the quality of the photovoltaic module can be further improved.
In the technical solution, under the condition that the photocurable adhesive layer 130 is in a dot shape, the diameter of the photocurable adhesive layer 130 is greater than the width of the solder strip body 110; and under the condition that the light solid glue layer 130 is the line segment shape, the width of the light solid glue layer 130 is greater than the width of the solder strip body 110, so the contact area between the solder strip body 110 and the light solid glue layer 130 can be increased, and the fixing strength of the solder strip body 110 can be further improved.
In one possible embodiment, the fixing tape 120 is formed with a sinking groove, and the light curing adhesive layer 130 is disposed in the sinking groove.
In this technical scheme, can be formed with heavy groove on the fixed band 120, so set up be convenient for liquid light admittedly glue the setting within heavy groove, can avoid light admittedly glue excessive, can ensure the roughness of light admittedly glue film 130, and then improve the quality of welding the area.
In one possible embodiment, the number of the light curing adhesive layers 130 is multiple, and the multiple light curing adhesive layers 130 are arranged at intervals along the length direction of the solder strip body 110.
In this technical scheme, the light-cured adhesive layer 130 can be a plurality of, and a plurality of light-cured adhesive layers 130 are arranged at intervals, so that the stable bonding of the welding strip body 110 and the fixing strip 120 is facilitated.
In one possible embodiment, the melting point of the fixing tape 120 on the side facing the solder tape body 110 is 70 to 115 ℃.
In the technical scheme, a melting point of the fixing band 120 is further provided, the welding band body 110 is connected to two adjacent battery pieces through the fixing band 120, so that series connection of the two adjacent battery pieces is realized, convergence of the photovoltaic module is realized, and the melting point of one side of the fixing band 120 facing the welding band body 110 is 70-115 ℃, so that the welding band body 110 can be bonded on the battery pieces in a mode of melting the fixing band 120 in the preparation process of the photovoltaic module, a welding process in the traditional technology is replaced, series connection of the battery pieces can be realized under the temperature condition of 70-115 ℃, the temperature of circuit interconnection of the battery pieces is greatly reduced, the photovoltaic module can be protected, the battery pieces of the photovoltaic module are prevented from being damaged due to overhigh welding temperature, and the service life and the performance of the photovoltaic module are improved.
It can be understood that the fixed band 120 can be multilayer structure, the fixed band 120 can include articulamentum and substrate layer, the fusing point of articulamentum is 70 ℃ to 115 ℃, the articulamentum is connected in the substrate layer, the articulamentum is used for melting in order to weld and take body 110 to connect in the battery piece, and the mechanical strength of fixed band 120 can be improved through the setting of substrate layer, guarantee fixed band 120's wear resistance, will weld at fixed band 120 and take body 110 to laminate in the battery piece when, make fixed band 120 can compromise the effect of auxiliary protection.
It can be understood that the fixing band 120 can also be of a single-layer structure, so that the fixing band 120 can be produced and processed conveniently, when the fixing band 120 of the single-layer structure is to be welded with the band body 110 to be attached to a battery piece, the fixing band 120 of the single-layer structure can also play a certain auxiliary protection role, the contact between the band body 110 and the outside air can be avoided, the probability that the band body 110 is abraded can be reduced, and the service life can be prolonged.
It is understood that, in order to secure the power generation performance of the photovoltaic module, the light transmittance of the fixing tape 120 needs to be greater than or equal to 70%.
It is understood that the melting point of the side of the fixing tape 120 facing the battery sheet 100 is 70 to 115 ℃. One side of the fixing band 120 is a fusible connecting side, and the other side of the fixing band 120 can be made of a non-fusible or high-melting-point material and is an isolating side, so that the fixing band 120 can play a role in fixing the battery piece on one hand, and can play an isolating role on the other hand, and the abrasion of the battery piece can be reduced.
According to the photovoltaic module provided by the embodiment of the application, through the arrangement of the fixing belt 120, on one hand, the connection between the welding strip body 110 and the battery piece is more reliable, the welding strip body 110 can be prevented from being separated from the battery piece, a gap between the welding strip body 110 and the battery piece can be prevented, and the power generation efficiency of the 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 the fixation of the welding strip body 110 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 body 110 is fixed on the cell piece by melting the fixing band 120, and the solder strip body 110 does not need to be fixed by welding equipment, so that the wire diameter of the solder strip body 110 is further reduced, the shading area of the solder strip body 110 can be further reduced, and the power generation efficiency of the photovoltaic module is improved.
In one possible embodiment, the fixing band 120 includes: the melting point of the bonding layer is 70-115 ℃; and the isolating layer is connected with the bonding layer, and the melting point of the isolating layer is greater than or equal to 170 ℃.
Further provided the structure of fixed band 120 in this technical scheme, fixed band 120 can be multilayer structure, both fixed band 120 can include the adhesive linkage and connect in the isolation layer of adhesive linkage, and wherein the melting point of adhesive linkage 303 is 70 ℃ to 115 ℃, and fixed band 120 can be connected in the battery piece through the adhesive linkage, and the isolation layer then need not to possess adhesive property, and the isolation layer can play the effect of keeping apart, can protect the battery piece to prevent that the battery piece from being worn and torn.
The melting point of the isolation layer is greater than or equal to 170 ℃, so that the fixing band 120 cannot be damaged due to overhigh temperature of the working environment in the use process of the photovoltaic module, and the service life and the working stability of the photovoltaic module can be greatly improved.
In some examples, the securing strap 120 further comprises: and a plurality of organic layers disposed between the adhesive layer and the barrier layer.
The fixing tape 120 may further include a plurality of organic layers in addition to the adhesive layer and the isolation layer, and the fixing tape 120 may have good ductility and stable chemical properties by the arrangement of the plurality of organic layers, and it may be understood that materials between the plurality of organic layers may be different, so that the corrosion resistance of the fixing tape 120 may be further improved, and the operation of the photovoltaic module may be more stable.
It can be understood that the light transmittance of the organic layer, the adhesive layer and the isolation layer is higher than 80% to ensure the power generation efficiency of the photovoltaic cell.
As shown in fig. 7, in one possible embodiment, the solder strip body 110 includes: a conductor 111; and a hot melt layer 112 coated on the conductor 111, wherein the hot melt layer 112 is made of a material having a melting point of 50 ℃ to 500 ℃.
The solder strip body 110 provided by the embodiment of the application comprises a conductor 111 and a hot melt layer 112 coated on the conductor 111, wherein the melting point of the hot melt layer 112 is 100 ℃ to 500 ℃, in the use process of the solder strip body 110 provided by the embodiment of the application, the solder strip body 110 and a fixing band 120 can be arranged on a cell slice for preparing a photovoltaic module, then the solder strip body 110 and the fixing band 120 are heated, the temperature of the solder strip body 110 is higher than that of the hot melt layer 112, the temperature of the fixing band 120 is higher than that of the connecting side of the fixing band 120, the hot melt layer 112 and part of the fixing band 120 on the solder strip body 110 can be melted, then the temperature is reduced, the melted hot melt layer 112 is solidified again, the solder strip body 110 and the fixing band 120 can be laminated on the cell slice, and the series connection of a plurality of cell slices can be realized by repeating the steps to connect two adjacent cell slices.
According to the solder strip body 110 provided by the embodiment of the application, in the use process of the solder strip body 110, the hot melt layer 112 is melted, and then the conductor 111 is connected to the battery piece through re-solidification of the hot melt layer 112, so that on one hand, the connection between the solder strip body 110 and the battery piece is more reliable, the solder strip body 110 can be prevented from being separated from the battery piece, a gap can be prevented from being generated between the solder strip body 110 and the battery piece, 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 the fixation of the welding strip body 110 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 body 110 is fixed on the cell piece in a mode of melting the hot melt layer 112, the solder strip body 110 does not need to be fixed through welding equipment, the wire diameter of the solder strip body 110 is favorably further reduced, the shading area of the solder strip body 110 can be further reduced, and the power generation efficiency of the photovoltaic module is improved.
It can be understood that, in the use process of the photovoltaic module, the temperature of the cell is usually about 80 ℃, and is selected by the material with the melting point of 100 ℃ to 500 ℃, after the solder strip body 110 is connected to the cell, the hot melt layer 112 thereof can be in a solid state, and will not be melted by the temperature of the photovoltaic module, thereby ensuring the reliability of the fixation of the solder strip body 110.
More preferably, the melting point of the material used to prepare hot melt layer 112 may be between 200 ℃ and 500 ℃.
It can be understood that, in the process of connecting the solder strip body 110 to the battery piece, the solder strip body 110 provided in the embodiment of the present application does not need to form a bonding pad on the battery piece, and the temperature of the solder strip body 110 in the installation process is between 100 ℃ and 500 ℃, which can prevent the battery piece from being damaged by high temperature or the bonding pad, and can ensure the integrity of the battery piece, thereby being beneficial to further improving the power generation efficiency of the photovoltaic module.
It is understood that, in order to ensure that the solder ribbon body 110 can function as a series cell, the conductor 111 needs to be made of a conductor material, and the lower the resistivity of the conductor 111, the higher the power generation efficiency of the photovoltaic module.
It can be understood that, in the solder strip body 110 provided in the embodiment of the present application, the hot melt layer 112 is coated on the conductor 111, that is, the hot melt layer 112 is disposed on the peripheral side of the conductor 111, and in the use process of the solder strip body 110, the solder strip body 110 can be fixed on the battery pieces through any angle, so that the solder strip body 110 is installed, the series connection of the plurality of battery pieces is more convenient, and the process difficulty is reduced.
The material for preparing the hot melt layer 112 may be an organic material, and through the selection of the organic material, in the preparation process of the solder strip body 110, only the conductor 111 needs to pass through the organic material in the molten state, and a layer of the organic material in the molten state can be hung on the conductor 111, and after the organic material in the molten state is cooled and solidified, the hot melt layer 112 can be formed on the conductor 111, and the organic material is convenient to melt, and the chemical property after melting is stable, so that the preparation of the solder strip body 110 is facilitated.
Meanwhile, the hot melt layer 112 is prepared from an organic material, so that on the first hand, the hot melt layer 112 is ensured to have good hydrophobicity, the photovoltaic module can be prevented from being infected by water vapor, and the welding strip body 110 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 112 is ensured, and the battery piece can be better bonded after the hot-melt layer 112 is melted.
In some examples, the organic material includes: at least one of polyethylene octene co-elastomer, ethylene-vinyl acetate and polyolefin thermoplastic elastomer.
The organic material for preparing the hot melt layer 112 may include at least one of a polyethylene octene co-elastomer, ethylene-vinyl acetate and a polyolefin thermoplastic elastomer, which is beneficial to the preparation of the solder strip body 110, and can improve the light transmittance of the hot melt layer 112 while ensuring the hydrophobicity and viscosity of the hot melt layer 112, so that the hot melt layer 112 is close to a transparent state, the light shielding property of the solder strip body 110 can be greatly reduced, the optical loss of a photovoltaic module can be further reduced, and the power generation efficiency of the photovoltaic module can be improved.
According to a second aspect of embodiments of the present application, there is provided a photovoltaic module, comprising: at least two battery pieces; according to the welding strip of any one of the technical schemes, at least two battery pieces are connected in series through the welding strip.
The photovoltaic module that this application embodiment provided, because the solder strip that has included any above-mentioned technical scheme, consequently possess the whole effect of the solder strip of above-mentioned technical scheme.
The application provides a photovoltaic module, in the preparation process, can weld the area through the heating, make the fixed band 120 that welds the area possess viscidity, then will weld the mode that the area is fixed to the battery piece through fixed band 120 again and realize the series connection of two battery pieces, can reduce the demand of welding the area to connection temperature, it need not to rely on the heating to weld the area simultaneously with being connected of fixed band 120, make fixed band 120 can be in the leveling state when setting up on the battery piece, can ensure the reliability that the battery piece is established ties.
In the present application, the terms "first", "second", "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 used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, 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 description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 (10)
1. A solder strip, comprising:
a weld band body;
the fixing belt is used for being connected to the battery piece;
the light-cured adhesive layer is arranged between the fixing band and the welding band body, and the welding band body is connected to the fixing band through the light-cured adhesive layer.
2. Solder strip according to claim 1,
the light curing adhesive layer is a UV light curing adhesive layer.
3. Solder strip according to claim 1,
the light curing adhesive layer is in a dot shape or a line segment shape;
under the condition that the light curing adhesive layer is in a dot shape, the diameter of the light curing adhesive layer is larger than the width of the welding strip body;
and under the condition that the light curing glue layer is in a line segment shape, the width of the light curing glue layer is greater than that of the welding strip body.
4. Solder strip according to claim 1,
a sinking groove is formed in the fixing belt, and the light-curing adhesive layer is arranged in the sinking groove.
5. Solder strip according to claim 1,
the light glue film is a plurality of, and is a plurality of the light glue film is along weld the length direction interval arrangement of taking the body.
6. Solder strip according to one of claims 1 to 5,
the melting point of one side of the fixing belt facing the welding belt body is 70-115 ℃.
7. The solder strip of claim 6, wherein the securing strap comprises:
the adhesive layer has a melting point of 70-115 ℃;
the isolating layer is connected to the bonding layer, and the melting point of the isolating layer is greater than or equal to 170 ℃.
8. A weld strip according to any one of claims 1 to 5, wherein the weld strip body comprises:
a conductor;
and the hot melting layer is coated on the conductor and is made of a material with the melting point of 100-500 ℃.
9. Solder strip according to claim 8,
the hot melt layer is made of an organic material.
10. A photovoltaic module, comprising:
at least two battery pieces;
the solder strip of any one of claims 1 to 9, at least two of the battery pieces being connected in series by the solder strip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221761953.6U CN218849508U (en) | 2022-07-08 | 2022-07-08 | Solder strip and photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221761953.6U CN218849508U (en) | 2022-07-08 | 2022-07-08 | Solder strip and photovoltaic module |
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| Publication Number | Publication Date |
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| CN218849508U true CN218849508U (en) | 2023-04-11 |
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| CN202221761953.6U Active CN218849508U (en) | 2022-07-08 | 2022-07-08 | Solder strip and photovoltaic module |
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