CN111162137A - Conductive tape, photovoltaic device and application thereof - Google Patents

Conductive tape, photovoltaic device and application thereof Download PDF

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Publication number
CN111162137A
CN111162137A CN202010065845.4A CN202010065845A CN111162137A CN 111162137 A CN111162137 A CN 111162137A CN 202010065845 A CN202010065845 A CN 202010065845A CN 111162137 A CN111162137 A CN 111162137A
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China
Prior art keywords
conductive
conductive connection
reflective
reflective conductive
segment
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CN202010065845.4A
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Chinese (zh)
Inventor
孙益民
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Ningbo Linyuan Optoelectronics Technology Co ltd
Ningbo Senlian Photoelectric Technology Co ltd
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Ningbo Linyuan Optoelectronics Technology Co ltd
Ningbo Senlian Photoelectric Technology Co ltd
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Priority to CN202010065845.4A priority Critical patent/CN111162137A/en
Publication of CN111162137A publication Critical patent/CN111162137A/en
Pending legal-status Critical Current

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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
    • H01L31/0508—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 the interconnection means having a particular shape
    • 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
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
    • 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
    • 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
    • Y02E10/52—PV systems with concentrators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention provides a conductive band, a photovoltaic device and application thereof, wherein the conductive band comprises a reflection conductive connecting section and an extension conductive connecting section, wherein the reflection conductive connecting section is provided with a reflection conductive connecting section high end, a reflection conductive connecting section end surface and a reflection conductive connecting section back surface, one reflection conductive connecting section end surface extends from the reflection conductive high end to the reflection conductive connecting section back surface, the extension conductive connecting section integrally extends to the reflection conductive connecting section, the extension conductive connecting section is provided with an extension conductive connecting section front surface and an extension conductive connecting section back surface which is oppositely arranged, and the connecting part of the extension conductive connecting section front surface and the reflection conductive connecting section end surface is inwards concave to form an arc surface so as to reduce stress concentration at the connecting part.

Description

Conductive tape, photovoltaic device and application thereof
Technical Field
The invention relates to the field of electric energy transmission, in particular to a conductive belt, a photovoltaic device and application thereof.
Background
A conductive strip is capable of transferring electrical energy between and connecting at least two electrically conductive members, the conductive strips being capable of being connected in series or in parallel with the electrically conductive members. For example, the conductive strips can be connected with the battery plates of the solar photovoltaic module, the adjacent battery plates can be respectively arranged at two opposite sides of the conductive strips, so that at least part of the conductive strips is positioned at the front side of the battery plates, and at least part of the conductive strips is positioned at the back side of the battery plates.
A gap exists between the adjacent battery plates, so that at least part of the conductive belt crossing two battery plates is suspended. In other words, at least part of the conductive strip is supported on the battery piece, and at least part of the conductive strip is suspended. Stress is concentrated at the connecting part of the supported part and the suspended part of the conductive strip, namely the part of the conductive strip corresponding to the edge position of the conductive strip, so that the conductive strip is easy to break under the action of external force in the environment.
Further, a conductive tape currently used generally includes two portions, one is a front cell conductive portion for being disposed on a front side of one of the cells, and the other is a back cell conductive portion for being disposed on a back side of one of the cells. The front cell sheet conductive portion needs to be thicker than the back cell sheet conductive portion to facilitate forming a reflective surface, such as an undulating reflective surface or other type of reflective surface, to facilitate collection of solar energy.
At the junction of the thicker front cell conductive portion and the thinner back cell conductive portion, there may be a height difference between the front side of one cell and the back side of another cell, so that the conductive tape at this position needs to be bent, and the edge position of the front cell conductive portion is pressed against the junction of the front cell conductive portion and the back cell conductive portion, which aggravates the stress concentration at this position. This results in the conductive tape being easily broken such that current cannot pass between the two cells, thereby affecting the proper operation of the entire photovoltaic device.
Disclosure of Invention
An object of the present invention is to provide a conductive tape, a photovoltaic device and applications thereof, in which a phenomenon of stress concentration at a connection of a portion of the conductive tape supported to a cell sheet and a portion of the conductive tape unsupported to the cell sheet can be improved.
Another object of the present invention is to provide a conductive tape, a photovoltaic device and applications thereof, in which a stress concentration phenomenon at a bent position of the conductive tape can be improved when the conductive tape is bent for use.
Another object of the present invention is to provide a conductive tape, a photovoltaic device and applications thereof, wherein the conductive tape includes a reflective conductive connecting section and an extended conductive connecting section, wherein an end surface of the reflective conductive connecting section integrally extends to a front surface of the extended conductive connecting section, and a connecting portion between the reflective conductive connecting section and the extended conductive connecting section forms an arc surface to reduce stress generated at the connecting portion when the extended conductive connecting section is bent with respect to the reflective conductive connecting section.
Another object of the present invention is to provide a conductive tape, a photovoltaic device and applications thereof, wherein the conductive tape is made of a metal wire, a force is applied to a predetermined position of the metal wire so that at least a portion of the metal wire is pressed to obtain the extended conductive connecting section, and a connection arc surface is formed at a connection portion of the extended conductive connecting section and the reflective conductive connecting section.
According to one aspect of the present invention, there is provided a conductive tape comprising:
a reflective conductive connection section, wherein said reflective conductive connection section has a reflective conductive connection section high end, a reflective conductive connection section end face and a reflective conductive connection section back face, wherein one of said reflective conductive connection section end faces extends from said reflective conductive high end toward said reflective conductive connection section back face; and
an extension electrically conductive linkage segment, wherein extend electrically conductive linkage segment an organic whole extend in reflection electrically conductive linkage segment, extend electrically conductive linkage segment has an extension electrically conductive linkage segment back that extends electrically conductive linkage segment front and relative setting, wherein extend electrically conductive linkage segment back an organic whole extend in reflection electrically conductive linkage segment back, extend electrically conductive linkage segment front an organic whole extend in reflection electrically conductive linkage segment terminal surface and extend electrically conductive linkage segment front with the junction of reflection electrically conductive linkage segment terminal surface is recessed and is formed an cambered surface.
According to at least one embodiment of the invention, the back surface of the reflective conductive connection segment and the back surface of the extended conductive connection segment are located on the same plane.
According to at least one embodiment of the invention, the front surface of the extended conductive connection segment and the back surface of the extended conductive connection segment are parallel to each other.
According to at least one embodiment of the present invention, the reflective conductive connection section has a reflective conductive connection section front surface, wherein the reflective conductive connection section front surface is located at the reflective conductive connection section high end of the reflective conductive connection section, and the reflective conductive connection section front surface and the reflective conductive connection section back surface are oppositely disposed.
According to at least one embodiment of the present invention, the reflective conductive connection segment has two reflective conductive connection segment sides, wherein the two reflective conductive connection segment sides are oppositely disposed and extend between the reflective conductive connection segment front side and the reflective conductive connection segment back side.
According to at least one embodiment of the present invention, at least one side surface of the reflective conductive connection segment is inclined, so that light rays radiated to the side surface of the reflective conductive connection segment from top to bottom are reflected.
According to at least one embodiment of the invention, at least a portion of the reflective conductive connection section front face of the reflective conductive connection section is undulating.
According to at least one embodiment of the invention, the reflective conductive connection section is trapezoidal in cross-section.
According to at least one embodiment of the present invention, the reflective conductive connection section has two reflective conductive connection section side surfaces, wherein the two reflective conductive connection section side surfaces are oppositely disposed and extend from the peripheral position of the reflective conductive connection section back surface to the high end position of the reflective conductive connection section to be connected with each other.
According to at least one embodiment of the present invention, at least one side surface of the reflective conductive connection segment is inclined, so that light rays radiated to the side surface of the reflective conductive connection segment from top to bottom are reflected.
According to at least one embodiment of the invention, at least a portion of the reflective conductive connection section front face of the reflective conductive connection section is undulating.
According to at least one embodiment of the invention, the reflective conductive connection segments are triangular in cross-section.
According to at least one embodiment of the invention, the width of the extended conductive connection segment is greater than the width of the reflective conductive connection segment.
According to at least one embodiment of the invention, the conductive strip includes a conductive layer and a solder layer, wherein the solder layer is disposed on a surface of the conductive layer, the reflective conductive connection segment includes at least a portion of the solder layer and at least a portion of the conductive layer, and the extended conductive connection segment includes a remaining portion of the solder layer and a remaining portion of the conductive layer.
According to at least one embodiment of the invention, the conductive strip is extruded at predetermined positions through a conductive layer with a solder layer, wherein the extruded portion of the conductive strip forms the extended conductive connection section and the non-extruded portion of the conductive strip forms the reflective conductive connection section.
According to another aspect of the present invention, there is provided a photovoltaic device comprising:
at least two battery pieces; and
a conductive strip, wherein said conductive strip comprises at least a reflective conductive connection section and an extended conductive connection section, wherein said reflective conductive connection section has a reflective conductive connection section high end, a reflective conductive connection section end and a reflective conductive connection section back, wherein one of said reflective conductive connection section end extends from said reflective conductive high end towards said reflective conductive connection section back, wherein at least one of said battery slices is disposed on said reflective conductive connection section back, wherein said extended conductive connection section extends integrally with said reflective conductive connection section, said extended conductive connection section has an extended conductive connection section front and an oppositely disposed extended conductive connection section back, wherein at least one of said battery slices is disposed on said extended conductive connection section front, wherein said extended conductive connection section back extends integrally with said reflective conductive connection section back, the front surface of the extension conductive connecting section integrally extends to the end surface of the reflection conductive connecting section, and the joint of the front surface of the extension conductive connecting section and the end surface of the reflection conductive connecting section is recessed inwards to form an arc surface.
According to another aspect of the present invention, there is provided a method of manufacturing a conductive tape, comprising the steps of:
the conductive band is extruded at a preset position of the conductive band to obtain the conductive band with a reflective conductive connecting section and an extension conductive connecting section, wherein the connecting part of the reflective conductive connecting section and the extension conductive connecting section is extruded to form a concave cambered surface.
According to at least one embodiment of the invention, wherein the manufacturing method further comprises the steps of:
the reflective conductive connection segments form a triangular cross-section.
According to at least one embodiment of the invention, wherein the manufacturing method further comprises the steps of:
the reflective conductive connection segments are formed with trapezoidal cross sections.
According to at least one embodiment of the invention, wherein the manufacturing method further comprises the steps of:
forming said extended conductive connection segments in a flat shape.
According to at least one embodiment of the present invention, before the extruding step, the method further comprises the following steps:
solder is attached to the surface of a wire to obtain the conductive tape with solder.
According to at least one embodiment of the present invention, in the pressing step, the conductive tape is pressed by a pressing head, and an edge position of the pressing head is set to be rounded so that the connection of the reflective conductive connection section and the extended conductive connection section forms the arc surface.
Drawings
FIG. 1 is a schematic diagram of a conductive strip according to a preferred embodiment of the present invention
Fig. 2A is a schematic diagram of a photovoltaic device according to a preferred embodiment of the present invention.
Fig. 2B is a schematic diagram of a photovoltaic device according to a preferred embodiment of the present invention.
Fig. 2C is a schematic diagram of a photovoltaic device according to a preferred embodiment of the present invention.
Fig. 3 is a schematic application diagram of the photovoltaic device according to the above preferred embodiment of the present invention.
Fig. 4A to 4H are schematic views of various embodiments of the conductive strip according to the above preferred embodiment of the present invention.
FIG. 5 is a schematic view of a conductive strip according to another preferred embodiment of the present invention.
FIG. 6 is a schematic view of a photovoltaic device according to another preferred embodiment of the present invention.
Fig. 7A to 7H are schematic views of various embodiments of the conductive strip according to the above preferred embodiment of the present invention.
FIG. 8 is a schematic view of a conductive strip according to another preferred embodiment of the present invention.
FIG. 9 is a schematic view of a conductive strip according to another preferred embodiment of the present invention.
Fig. 10A to 10D are schematic views of various embodiments of the conductive tape according to the above preferred embodiment of the present invention.
FIG. 11 is a schematic view of a conductive strip according to another preferred embodiment of the present invention.
FIG. 12 is a schematic view of a conductive strip according to another preferred embodiment of the present invention.
Fig. 13A to 13F are schematic views of various embodiments of the conductive tape according to the above preferred embodiment of the present invention.
FIG. 14 is a schematic view of a conductive strip according to another preferred embodiment of the present invention.
FIG. 15 is a schematic view of a conductive strip according to another preferred embodiment of the present invention.
Fig. 16A to 16G are schematic views of various embodiments of the conductive tape according to the above preferred embodiment of the present invention.
FIG. 17A is a schematic view of a method of manufacturing a conductive strip according to another preferred embodiment of the invention.
FIG. 17B is a schematic diagram of a method of manufacturing a conductive strip according to another preferred embodiment of the invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1 to 3, a conductive tape 1 according to a preferred embodiment of the present invention and one of applications of the conductive tape 1, a photovoltaic device 100, are illustrated.
The conductive strip 1 can reduce the problem of stress concentration caused by bending itself during use, so as to facilitate the extension of the service life of the conductive strip 1 and the normal operation of the photovoltaic device 100.
Specifically, the conductive strip 1 includes a reflective conductive connection segment 10 and an extended conductive connection segment 20, wherein the extended conductive connection segment 20 integrally extends from the reflective conductive connection segment 10, the reflective conductive connection segment 10 can be disposed on the front surface of one cell 2, and at least a portion of the extended conductive connection segment 20 can be disposed on the back surface of another cell 2.
The conductive tape 1 can connect two or more of the battery pieces 2 and perform an electric energy transfer function between the battery pieces 2. The conductive strip 1 may be fixedly mounted at a predetermined position of the battery piece 2 through a conductive medium, such as a conductive adhesive or solder.
It should be noted that, when the conductive tape 1 is mounted on the front surface of the cell 2, i.e. the side facing the light, the conductive tape 1 covers at least part of the cell 2, so as to have a certain effect on the solar energy collection efficiency of the cell 2, in order to reduce this effect, the part of the conductive tape 1 on the front surface of the cell 2, i.e. the reflective conductive connecting section 10, is provided with at least one reflective surface 11, wherein the reflective surface 11 is used for reflecting the light, so that the light blocked by the conductive tape 1 and unable to fall to the cell 2 can fall back to the cell 2 again, thereby improving the solar energy collection efficiency.
For the conductive tape 1 disposed on the back surface of the cell piece 2, at least a portion of the extended conductive connecting section 20 of the conductive tape 1 disposed on the cell piece 2 does not affect the solar energy collection efficiency of the cell piece 2 because the back surface of the cell piece 2 is not required for collecting light.
The extended conductive connecting segment 20 can form a back conductive connecting segment 20B, wherein the back conductive connecting segment 20B is used for connecting the back of another cell 2. In detail, the extended conductive connection segment 20 may include a transition segment 20A and the back conductive connection segment 20B, wherein the transition segment 20A extends between the reflective conductive connection segment 10 and the back conductive connection segment 20B. The transition section 20A is not connected to the battery piece 2, and is suspended between two adjacent battery pieces 2.
In other words, a portion of the extended conductive connection segment 20 may be used to connect to another of the battery cells 2. When the length of the conductive strip 1 is long enough, a plurality of the reflective conductive connection segments 10 and a plurality of the extended conductive connection segments 20 may be disposed at intervals, for example, one reflective conductive connection segment 10 is connected to one battery piece 2, the adjacent extended conductive connection segment 20 is connected to another battery piece 2, and the adjacent reflective conductive connection segment 10 is connected to another battery piece 2, in such a way that a plurality of battery pieces 2 can be connected through the conductive strip 1.
Further, the extended conductive connection segment 20 has an extended conductive connection segment front surface 201 and an extended conductive connection segment back surface 202, wherein the extended conductive connection segment front surface 201 and the extended conductive connection segment back surface 202 are oppositely disposed.
The reflective conductive connection section 10 has a reflective conductive connection section back 101, two reflective conductive connection section end faces 102, a reflective conductive connection section high end 103, and two reflective conductive connection section side faces 104, the extension conductive connection section back 202 integrally extends on the reflective conductive connection section back 101, and the extension conductive connection section front 201 integrally extends on one of the two reflective conductive connection section side faces 104. In detail, two reflective conductive connection section end faces 102 are oppositely arranged, and two reflective conductive connection section end faces 102 are respectively arranged to extend from the reflective conductive connection section high end 103 towards the reflective conductive connection section back face 101, and one of the reflective conductive connection section end faces 102 integrally extends from the extended conductive connection section front face 201.
The two reflective conductive connection section sides 104 are oppositely disposed and extend from the reflective conductive connection section back side 101 to the reflective conductive connection section high side 103.
In more detail, two side surfaces 104 of the reflective conductive connection section are located in the width direction of the reflective conductive connection section 10, and two end surfaces 102 of the reflective conductive connection section are located in the length direction of the reflective conductive connection section 10.
The junction of the reflective conductive connection section end surface 102 of the reflective conductive connection section 10 and the extension conductive connection section front surface 201 of the extension conductive connection section 20 forms a concave arc surface 12.
Taking the example that the conductive tape 1 is connected to two battery pieces 2 as an example, the reflective conductive connecting section 10 is connected to one battery piece 2, the extension conductive connecting section 20 is connected to the other battery piece 2, the reflective conductive connecting section 10 is located on the front surface of the battery piece 2, and the extension conductive connecting section 20 is located on the back surface of the battery piece 2.
That is, the reflective conductive connection section back surface 101 of the reflective conductive connection section 10 is connected to the back surface of one of the battery cells 2, and the extended conductive connection section front surface 201 of the extended conductive connection section 20 is connected to the front surface of the other battery cell 2.
Referring to fig. 2A, an embodiment of the photovoltaic device 100 according to the present invention is illustrated. In this embodiment, there is a height difference between the portions of the conductive strip 1 corresponding to two adjacent batteries 2, so that at least a portion of the conductive strip 1 needs to be bent. It will be understood by those skilled in the art that the arrangement of the two battery slices 2 of the photovoltaic device 100 is illustrated here by way of example and not limited to the above description. For example, referring to fig. 2B and fig. 2C, a height difference may exist between two adjacent battery sheets 2, and the conductive strip 1 may be bent or may not be bent temporarily.
Further, in the present embodiment, the reflective conductive connection section 10 of the conductive strip 1 is supported on the battery piece 2. The front and back surfaces of the cell 2 are generally flat surfaces. The rear surface conductive connection segment 20B of the extended conductive connection segment 20 of the conductive tape 1 is located below the other of the battery pieces 2. The transition section 20A extending between the reflective conductive connection section 10 and the extension conductive connection section 20 is bent.
It is noted that the connection point of the reflective conductive connection segment 10 and the extended conductive connection segment 20 corresponds to the edge position of the battery piece 2 supported by the reflective conductive connection segment 10. In the battery piece 2, the conductive tape 1 extends from the front side of the battery piece 2 to the side of the battery piece 2. Since the concave arc surface 12 is formed at the connection position of the reflective conductive connection section end surface 102 of the reflective conductive connection section 10 of the conductive band 1 and the extension conductive connection section front surface 201 of the extension conductive connection section 20, when the conductive band 1 is bent in use, the arc degree of the arc surface 12 at the connection position of the reflective conductive connection section end surface 102 and the extension conductive connection section front surface 201 is enlarged.
It should be noted that in the present embodiment, the thickness of the whole conductive strip 1 gradually decreases from large to small from the reflective conductive connection section 10 to the transition section 20A and then to the back conductive connection section 20B. For the transition segment 20A connecting the reflective conductive connection segment 10 and the back conductive connection segment 20B, the thickness of the transition segment 20A gradually changes in the length direction, which makes the transition segment 20A play a role of transition between the reflective conductive connection segment 10 and the back conductive connection segment 20B to avoid the thickness of the reflective conductive connection segment 10 to the extended conductive connection segment 20 from suddenly changing, resulting in the reduction of the structural strength at this position.
In other words, the transition section 20A of the extended conductive connection section 20 acts as a buffer to facilitate the structural strength of the reflective conductive connection section 10 and the extended conductive connection section 20 at the connection.
Further, in this embodiment, the two reflective conductive connection section side surfaces 104 of the reflective conductive connection section 10 are connected to each other at the high end 103 of the reflective conductive connection section, and the two reflective conductive connection sections 10 are respectively a plane. In more detail, the cross-section of the reflective conductive connection section 10 is a triangle.
In other embodiments of the present invention, for example, referring to fig. 5, the two reflective conductive connection section side surfaces 104 of the reflective conductive connection section 10 are not connected to each other at the high end 103 of the reflective conductive connection section, the reflective conductive connection section 10 further has a reflective conductive connection section front surface 105, wherein the reflective conductive connection section front surface 105 and the reflective conductive connection section back surface 101 are oppositely disposed, and the two reflective conductive connection section side surfaces 104 extend from the reflective conductive connection section front surface 105 to the reflective conductive connection section back surface 101. In other embodiments of the present invention, at least one of the reflective conductive connection segment sides 104 is a contoured surface. In other embodiments of the present invention, the reflective conductive connection section side 104 is implemented as two or more planes, for example, the cross section of the whole reflective conductive connection section 10 is a pentagon or hexagon.
Further, the reflective conductive connection section side surface 104 can function as a reflective light, and at least a part of the reflective conductive connection section side surface 104 is disposed to be inclined to form the reflective surface 11. When light is radiated towards the battery piece 2, at least part of the light is blocked by the conductive strip 1 positioned on the front surface of the battery piece 2, and the inclined reflecting surface 11 can radiate the light upwards or towards the periphery of the conductive strip 1, so that the light has the opportunity to fall into the battery piece 2 again.
The reflecting surface 11 of the conductive strip 1 can reflect light towards the upper part of the conductive strip 1, and a reflector can be arranged outside the conductive strip 1, wherein the reflector receives the light reflected by the reflecting surface 11 of the conductive strip 1, and then reflects the light to the part of the battery piece 2 which is not covered by the conductive strip 1.
The reflecting surface 11 of the conductive tape 1 may also directly reflect light to the battery piece 2, that is, the conductive tape 1 may not need to be arranged around the conductive tape 1.
In the above manner, the reflective surface 11 can be formed on the reflective conductive connection section side surface 104.
It is noted that the conductive tape 1 comprises a conductive layer 30 and a soldering layer 40, wherein the soldering layer 40 is disposed on the conductive layer 30. The reflective conductive connection segment 10 includes a portion of the conductive layer 30 and the corresponding solder layer 40. The extended conductive connection segment 20 includes the other remaining portions of the conductive layer 30 and the corresponding solder layer 40.
The soldering layer 40 includes a back soldering layer 41 and two side soldering layers 42, wherein the back soldering layer 41 is disposed on the back of the conductive layer 30, the side soldering layers 42 are disposed on the sides of the conductive layer 30, and the two side soldering layers 42 are located in the width direction of the conductive tape 1. The side surface of the conductive tape 1 is formed on the outer surface of the side bonding layer 42, and the back surface of the conductive layer 30 is formed on the outer surface of the back bonding layer 41.
In this embodiment, the soldering layer 40 corresponding to the reflective conductive connecting section 10 includes at least a portion of the back soldering layer 41 and at least a portion of the side soldering layer 42.
Further, the soldering layer 40 includes a positive portion soldering layer 43, wherein the positive portion soldering layer 43 and the side portion soldering layer 42 are oppositely disposed.
The solder layer 40 corresponding to the extended conductive connection segment 20 includes at least the backside solder layer 41, at least a portion of the positive side solder layer 43, and the positive side solder layer 43.
In consideration of the firmness of the connection between the battery tab 2 and the conductive tape 1, the soldering layer 40 of the conductive tape 1 needs to be set thick, that is, the back soldering layer 41 of the soldering layer 40 of the reflective conductive connecting section 10 needs to be set thick, and the positive soldering layer 43 of the soldering layer 40 of the extended conductive connecting section 20 needs to be set thick.
Since the reflective surface 11 is located on the reflective conductive connection section side 104 of the conductive strip 1, the back soldering layer 41 of the reflective conductive connection section 10 and the positive soldering layer 43 of the extended conductive connection section 20 are set to be thicker, and do not affect the reflective surface 11. The thickness of the soldering layer 40 corresponding to the reflective surface 11 can be set independently based on the requirement of reflection, for example, the side soldering layer 42 of the reflective conductive connecting segment 10 is set to be thinner, even the portion of the conductive layer 30 corresponding to the reflective surface 11 of the reflective conductive connecting segment 10 is not set with the soldering layer 40.
Further, in consideration of the firmness of the connection between the battery piece 2 and the conductive tape 1, the outer surface of the welding layer 40 of the conductive tape 1 needs to be flat, so as to facilitate the increase of the contact area between the conductive tape 1 and the battery piece 2. That is, the outer surface of the back bonding layer 41 of the bonding layer 40 of the reflective conductive connection segment 10 needs to be provided flat, and the outer surface of the positive bonding layer 43 of the bonding layer 40 of the extended conductive connection segment 20 needs to be provided flat. And the reflective surface 11 may be configured to be undulated to facilitate reflection of light, and the reflective surface 11 and the back solder layer 41 of the reflective conductive connection segment 10 and the positive solder layer 43 of the solder layer 40 of the extended conductive connection segment 20 do not affect each other.
In this embodiment, the cross section of the reflective conductive connection section 10 of the conductive strip 1 is triangular, the cross section of the conductive layer 30 corresponding to the reflective conductive connection section 10 may also be triangular, and the cross section of the corresponding soldering layer 40 may be an annular triangular structure. It will be appreciated that the corners of the triangle of the cross-section may be acute or rounded. In other embodiments of the invention, the cross section of the reflective conductive connection section 10 of the conductive strip 1 is triangular, and the cross section of the conductive layer 30 corresponding to the reflective conductive connection section 10 may not be triangular, such as rectangular or circular, and the triangular cross section is obtained by means of the soldering layer 40.
Referring to fig. 4A to 4H, various modified embodiments of the conductive strip 1 according to the above preferred embodiment of the present invention are illustrated.
One of the reflective conductive connection side surfaces 104 of the reflective conductive connection 10 of the conductive strip 1 may be undulating and the other reflective conductive connection side surface 104 may be planar.
One of the reflective conductive connection section sides 104 of the reflective conductive connection section 10 of the conductive strip 1 may be a curved surface and the other reflective conductive connection section side 104 may be a flat surface.
Two reflective conductive connection section side surfaces 104 of the reflective conductive connection section 10 of the conductive strip 1 may form an arc surface so that a cross section of a predetermined position of the reflective conductive connection section 10 is semicircular.
One of the reflective conductive connection side surfaces 104 of the reflective conductive connection 10 of the conductive strip 1 may comprise two portions, a first reflective conductive connection side surface portion and a second reflective conductive connection side surface portion, which may not be in the same plane.
The lengths of the two reflective conductive connection section sides 104 of the reflective conductive connection section 10 of the conductive strip 1 may be different.
The junction of the reflective conductive connection side 104 of the reflective conductive connection 10 of the conductive strip 1 and the reflective conductive connection back 101 may be a rounded corner.
Referring to fig. 5 and 6, the conductive tape 1 and the photovoltaic device 100 according to another preferred embodiment of the present invention are illustrated. The main difference between this embodiment and the above-described embodiment is the high end 103 of the reflective conductive connection section 1.
The reflective conductive connection section 1 has a reflective conductive connection section back 101, a reflective conductive connection section end 102, a reflective conductive connection section side 104, and a reflective conductive connection section front 105, wherein the reflective conductive connection section front 105 is located at the reflective conductive connection section high end 103.
Optionally, the reflective conductive connection segment back side 101 and the reflective conductive connection segment front side 105 are parallel to each other.
The cross section of the reflective conductive connecting section 1 is a trapezoid structure, and the reflective surface 11 is formed on the reflective conductive connecting section side surface 104 and the reflective conductive connecting section front surface 105, that is, not only the reflective conductive connecting section side surface 104 can be used for reflecting light, but also the reflective conductive connecting section front surface 105 can be used for reflecting light.
The reflective surface 11 formed on the front surface 105 of the reflective conductive connecting section can directly reflect light to the reflective plate. The reflective surface 11 formed on the reflective conductive connection section side surface 104 can reflect light to the reflective plate or directly to the battery plate 2 based on the inclination degree of the reflective surface 11 relative to the reflective conductive connection section back surface 101.
The reflective conductive connection section end surface 102 integrally extends on the reflective conductive connection section front surface 105, and has a height difference with the reflective conductive connection section front surface 105. The reflective conductive connection segment end face 102 extends between the reflective conductive connection segment front face 105 and the extended conductive connection segment front face 201 of the extended conductive connection segment 20 and between the reflective conductive connection segment front face 105 and the extended conductive connection segment 20, respectively.
The arc 12 is formed between the reflective conductive connection segment end face 102 and the extended conductive connection segment front face 201 and is inwardly concave.
Referring to fig. 7A to 7H, various modified embodiments of the conductive strip 1 according to the above preferred embodiment of the present invention are illustrated.
One of the reflective conductive connection side surfaces 104 of the reflective conductive connection 10 of the conductive strip 1 may be undulating and the other reflective conductive connection side surface 104 may be planar.
One of the reflective conductive connection section sides 104 of the reflective conductive connection section 10 of the conductive strip 1 may be a curved surface and the other reflective conductive connection section side 104 may be a flat surface.
The two reflective conductive connection section sides 104 of the reflective conductive connection section 10 of the conductive strip 1 may form an arc.
The surface of the conductive layer 30 corresponding to the reflective conductive connection segment 10 of the conductive strip 1 may be undulating.
The reflective conductive connection section front face 105 of the reflective conductive connection section 10 of the conductive strip 1 may be undulating to facilitate reflection of light.
One of the reflective conductive connection side surfaces 104 of the reflective conductive connection 10 of the conductive strip 1 may comprise two portions, a first reflective conductive connection side surface portion and a second reflective conductive connection side surface portion, which may not be in the same plane.
The lengths of the two reflective conductive connection section sides 104 of the reflective conductive connection section 10 of the conductive strip 1 may be different.
The junction of the reflective conductive connection side 104 of the reflective conductive connection 10 of the conductive strip 1 and the reflective conductive connection back 101 may be a rounded corner.
Referring to fig. 8, the conductive strip 1 according to another preferred embodiment of the invention is illustrated, the difference between this embodiment and the above embodiment being noted in the conductive layer 10.
The conductive layer 10 is arranged to be curved, which is bent to form a triangular frame structure with openings. The solder layer 20 is applied to the surface of the conductive layer 10.
Referring to fig. 9, the conductive layer 10 is arranged to be curved, which is bent to form a trapezoidal support structure with openings. The solder layer 20 is attached to the surface of the conductive layer 10.
Referring to fig. 10A to 10D, various embodiments of the conductive strip 1 according to the above preferred embodiment of the present invention are illustrated.
One of the reflective conductive connection side surfaces 104 of the reflective conductive connection 10 of the conductive strip 1 may be undulating and the other reflective conductive connection side surface 104 may be planar.
The lengths of the two reflective conductive connection section sides 104 of the reflective conductive connection section 10 of the conductive strip 1 may be different.
The junction of the reflective conductive connection side 104 of the reflective conductive connection 10 of the conductive strip 1 and the reflective conductive connection back 101 may be a rounded corner.
The conductive layer 30 of the reflective conductive connection section 10 of the conductive strip 1 may be hollow, triangular or trapezoidal in cross-section.
With reference to fig. 11 and 12, two different embodiments of the conductive strip 1 according to the invention are illustrated. The main difference between this embodiment and the above-described embodiments is the conductive layer 10 and the soldering layer 20 of the conductive strip 1.
In the present embodiment, the reflective conductive connecting section 10 forms a base 106, wherein the base 106 is used for being attached to the battery piece 2.
In detail, the reflective conductive connection segment side surface 104 of the reflective conductive connection segment 10 includes a first partially reflective conductive connection segment side surface 1041 and a second partially reflective conductive connection segment side surface 1042, wherein the second partially reflective conductive connection segment side surface 1042 extends to the reflective conductive connection segment back surface 101.
The second reflective conductive connection section side 1042 of the two reflective conductive connection section sides 104 is oppositely disposed, thereby forming two sides of the base 106.
At least a portion of the reflective conductive connection segment side surface 104 of the reflective conductive connection segment 10 forms the reflective surface 11. In this embodiment, the first reflective conductive connection section side 1041 of the reflective conductive connection section side 104 forms the reflective surface 11, and the second reflective conductive connection section side 1042 is disposed perpendicular to the reflective conductive connection section back 101, so that the second reflective conductive connection section side 1042 does not reflect light.
It is understood that the second reflective conductive connection section side 1042 can also be tilted to radiate light from top to bottom.
With reference to fig. 13A to 13F, different embodiments of the conductive strip 1 according to the above preferred embodiment of the invention are illustrated.
The first partially reflective conductive connection side 1041 of the reflective conductive connection side 104 of the reflective conductive connection 10 of the conductive strip 1 may be concave-convex.
The corners of the reflective conductive connection segments 10 of the conductive strip 1 may be rounded.
The two reflective conductive connection side surfaces 104 of the reflective conductive connection section 10 of the conductive strip 1 may be different, such as a curved surface, a flat surface, or a surface perpendicular to the reflective conductive connection back surface 101 and inclined to the reflective conductive connection back surface 101.
Two different embodiments of the conductive strip 1 according to the invention are illustrated with reference to figures 14 and 15. The main difference between this embodiment and the above-described embodiments is the conductive layer 10 and the soldering layer 20 of the conductive strip 1.
The conductive layer 10 of the conductive strip 1 for forming the reflective conductive connection section 10 is embodied in cross section in the form of a rectangle.
The soldering layer 20 of the conductive strip 1 for forming the reflective conductive connection section 10 is wrapped around the conductive layer 10, and finally the cross section of the reflective conductive connection section 10 is triangular or trapezoidal, or triangular-like or trapezoidal-like.
In detail, a part of the reflective conductive connection section side surface 104 of the reflective conductive connection section 10 corresponds to the conductive layer 10, and another part is formed on the solder layer 20.
The reflective surface 11 is formed on the side of the solder layer 20, and the solder layer 20 protrudes outward from at least a portion of the conductive layer 10 to form the reflective conductive connection segment 10.
In the manufacturing method of the conductive tape 1 of this embodiment, after the soldering layer 20 is attached to the surface of the conductive layer 10, the soldering layer 20 is pressed by a forming mold to obtain the reflective conductive connecting section 10 having a triangular or trapezoidal cross section and the extension conductive connecting section 20 having a rectangular cross section.
Referring to fig. 16A to 16G, different embodiments of the conductive strip 1 according to the above preferred embodiment of the present invention are illustrated.
The corners of the reflective conductive connection segments 10 of the conductive strip 1 may be rounded.
At least part of the reflective conductive connection section side 104 of the conductive strip 1 may be a curved surface.
The two reflective conductive connection side surfaces 104 of the reflective conductive connection section 10 of the conductive strip 1 may be different, such as a curved surface, a flat surface, or a surface perpendicular to the reflective conductive connection back surface 101 and inclined to the reflective conductive connection back surface 101.
The first partially reflective conductive connection side 1041 of the reflective conductive connection side 104 of the reflective conductive connection 10 of the conductive strip 1 may be concave-convex.
Referring to fig. 17A, a method of manufacturing the conductive strip 1 according to the above preferred embodiment of the present invention is illustrated. The conductive strip 11 with a triangular cross section of the reflective conductive connection section 10 is taken as an example for explanation.
Firstly, obtaining the metal wire 1000 with a preset length, and pressing the metal wire 1000 into a structure with a triangular cross section through the forming die 2000;
then, at least a portion of the wire 1000 is flattened at a predetermined position of the wire 1000, and it is noted that a circumferential position of a pressing surface of a pressing tool for pressing the wire 1000 has a curvature such that a junction of a pressed portion and an unpressed portion of the wire 1000 is an arc surface. In detail, the wire 1000 has a front side and a back side, wherein the pressing is performed on the front side of the wire 1000. The junction of the front surface of the pressed portion and the front surface of the non-pressed portion of the wire 1000 forms an arc surface after pressing;
attaching solder to a preset position on the surface of the metal wire 1000, for example, immersing the pressed metal wire 1000 in a solder bath 3000, and attaching the solder along the surface of the metal wire 1000 to obtain the conductive tape 1.
The reflective conductive connection section 10 of the conductive strip 1 may be shaped such that the reflective conductive connection section 10 is triangular in cross-section. The connection of the reflective conductive connection segment 10 and the extension conductive connection segment 20 of the conductive strip 1 may be shaped such that the connection of the end surface of the reflective conductive connection segment 10 and the front surface of the extension conductive connection segment 20 is an arc surface.
It is noted that, during the pressing of the wire 1000, the flattened portion may be obtained first, and then the raised portion with, for example, a triangular cross section may be obtained, and then the flattened portion may be obtained first, or both.
Referring to fig. 17B, another method of manufacturing the conductive strip 1 according to the above preferred embodiment of the present invention is illustrated. The conductive strip 1 with the triangular cross section of the reflective conductive connection section 10 is taken as an example for explanation.
First, a wire 1000 having a predetermined length is obtained, and the wire 1000 is passed through a forming die so that the cross-section of the wire 1000 becomes triangular.
Solder is attached to the wire 1000, for example, the wire 1000 may be submerged in a solder bath to cause solder to attach to the wire 1000.
The wire 1000 having a triangular cross section to which the solder is attached is passed through another molding die 2000A so that the wire 1000 having the solder, that is, the conductive tape 1 has a triangular cross section.
The predetermined position of the conductive strip 1 is flattened to obtain the extended conductive connection segment 20 after being extended and the reflective conductive connection segment 10 with a cross section still triangular without being extended. It should be noted that a pressing head may be used to press the predetermined position of the conductive strip 1, and the surface of the pressing head is rounded so that the junction between the front surface of the extension conductive connecting section 20 and the end surface of the reflection conductive connecting section 10 is an arc surface.
It should be noted that, during the process of flattening the conductive strip 1 to obtain the extended conductive connecting section 20, the extension of the conductive strip 1 in the width direction may be limited by another forming mold, so as to extend the length of the portion of the conductive strip 1 forming the extended conductive connecting section 20, and also extend the width of the portion of the conductive strip 1 forming the extended conductive connecting section 20 without changing the length. The user may select these two ways based on the needs.
Further, the length of the wire 1000 obtained at the beginning can be used to make the conductive strip 1 with one reflective conductive connection segment 10 and one extension conductive connection segment 20, and can also be used to make the conductive strip 1 with a plurality of reflective conductive connection segments 10 and a plurality of extension conductive connection segments 20.
It is noted that during pressing of the conductive strip 1, it is possible to obtain a flattened portion and then a raised, for example triangular, section, or to obtain a triangular section and then flatten it, or both.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims (36)

1. A conductive tape, comprising:
a reflective conductive connection section, wherein said reflective conductive connection section has a reflective conductive connection section high end, a reflective conductive connection section end face and a reflective conductive connection section back face, wherein one of said reflective conductive connection section end faces extends from said reflective conductive high end toward said reflective conductive connection section back face; and
an extension electrically conductive linkage segment, wherein extend electrically conductive linkage segment an organic whole extend in reflection electrically conductive linkage segment, extend electrically conductive linkage segment and have an extension electrically conductive linkage segment back that extends electrically conductive linkage segment openly and set up relatively, wherein extend electrically conductive linkage segment back with reflection electrically conductive linkage segment back is located the homonymy, extend electrically conductive linkage segment openly extend in reflection electrically conductive linkage segment terminal surface and extend electrically conductive linkage segment openly with the junction of reflection electrically conductive linkage segment terminal surface is recessed and is formed an cambered surface.
2. The conductive strip of claim 1, wherein said reflective conductive connection segment back surface and said extended conductive connection segment back surface are in the same plane.
3. The conductive tape of claim 1, wherein said extended conductive land front surface and said extended conductive land back surface are parallel to each other.
4. The conductive tape as claimed in any one of claims 1 to 3, wherein said reflective conductive land has a reflective conductive land front surface, wherein said reflective conductive land front surface is located at a high end of said reflective conductive land, and said reflective conductive land front surface and said reflective conductive land back surface are oppositely disposed.
5. The conductive strip of claim 4, wherein said reflective conductive connection segment has two reflective conductive connection segment sides, wherein said two reflective conductive connection segment sides are oppositely disposed and extend between said reflective conductive connection segment front face and said reflective conductive connection segment back face.
6. The conductive tape of claim 5, wherein at least one of said reflective conductive connection section sides is disposed to be inclined such that light radiated to said reflective conductive connection section sides from above to below is reflected.
7. The conductive strip of claim 6, wherein at least a portion of said reflective conductive connection segment front face of said reflective conductive connection segment is undulating.
8. The conductive strip of claim 6, wherein said reflective conductive connection segments are trapezoidal in cross-section.
9. The conductive tape as claimed in any one of claims 1 to 3, wherein said reflective conductive land has two reflective conductive land sides, wherein two of said reflective conductive land sides are oppositely disposed and connected to each other at a position extending from a peripheral position of a rear surface of said reflective conductive land to a high end position of said reflective conductive land.
10. The conductive tape of claim 9, wherein at least one of said reflective conductive connection section sides is disposed to be inclined such that light radiated to said reflective conductive connection section sides from above to below is reflected.
11. The conductive strip of claim 9, wherein at least a portion of said reflective conductive connection segment front face of said reflective conductive connection segment is undulating.
12. The conductive strip of claim 10, wherein said reflective conductive connection segments are triangular in cross-section.
13. The conductive strip of any one of claims 1 to 3, wherein said extended conductive connection segment has a width greater than said reflective conductive connection segment.
14. The conductive strip of any one of claims 1 to 3, wherein said conductive strip comprises a conductive layer and a solder layer, wherein said solder layer is disposed on a surface of said conductive layer, said reflective conductive connection section comprises at least a portion of said solder layer and at least a portion of said conductive layer, and said extended conductive connection section comprises a remaining portion of said solder layer and a remaining portion of said conductive layer.
15. The conductive strip as claimed in any one of claims 1 to 3, wherein said conductive strip is extruded at predetermined positions through a conductive layer having a solder layer, wherein extruded portions of said conductive strip form said extended conductive connection sections and non-extruded portions of said conductive strip form said reflective conductive connection sections.
16. A photovoltaic device, comprising:
at least two battery pieces; and
a conductive band, wherein said conductive band comprises at least a reflective conductive connection section and an extended conductive connection section, wherein said reflective conductive connection section has a reflective conductive connection section high end, a reflective conductive connection section end and a reflective conductive connection section back, wherein one of said reflective conductive connection section end extends from said reflective conductive high end toward said reflective conductive connection section back, wherein at least one of said battery pieces is disposed on said reflective conductive connection section back, wherein said extended conductive connection section extends integrally with said reflective conductive connection section, said extended conductive connection section has an extended conductive connection section front and an extended conductive connection section back oppositely disposed, wherein at least one of said battery pieces is disposed on said extended conductive connection section front, wherein said extended conductive connection section back and said reflective conductive connection section back are on the same side, the front surface of the extension conductive connecting section integrally extends to the end surface of the reflection conductive connecting section, and the joint of the front surface of the extension conductive connecting section and the end surface of the reflection conductive connecting section is recessed inwards to form an arc surface.
17. The photovoltaic device of claim 16, wherein the reflective conductive connection segment back surface and the extended conductive connection segment back surface lie in the same plane.
18. The photovoltaic device of claim 17, wherein the extended conductive link front face and the extended conductive link back face are parallel to each other.
19. The photovoltaic device of claim 17 or 18, wherein the reflective conductive connection segment has a reflective conductive connection segment front surface, wherein the reflective conductive connection segment front surface is located at the reflective conductive connection segment high end of the reflective conductive connection segment, and the reflective conductive connection segment front surface and the reflective conductive connection segment back surface are oppositely disposed.
20. The photovoltaic device of claim 19, wherein the reflective conductive connection segment has two reflective conductive connection segment sides, wherein the two reflective conductive connection segment sides are oppositely disposed and extend between the reflective conductive connection segment front side and the reflective conductive connection segment back side.
21. The photovoltaic device of claim 20, wherein at least one of the reflective conductive connection segment sides is disposed to be sloped such that light rays radiated to the reflective conductive connection segment sides from above to below are reflected.
22. The photovoltaic device of claim 21, wherein at least a portion of the reflective conductive connection segment front face of the reflective conductive connection segment is undulating.
23. The photovoltaic device of claim 21, wherein the reflective conductive connection segments are trapezoidal in cross-section.
24. The photovoltaic device of claim 17 or 18, wherein the reflective conductive connection segment has two reflective conductive connection segment sides, wherein the two reflective conductive connection segment sides are oppositely disposed and interconnected from a peripheral location on the back side of the reflective conductive connection segment to a high end location of the reflective conductive connection segment.
25. The photovoltaic device of claim 24, wherein at least one of the reflective conductive connection segment sides is disposed to be sloped such that light rays radiated to the reflective conductive connection segment sides from above to below are reflected.
26. The photovoltaic device of claim 24, wherein at least a portion of the reflective conductive connection segment front face of the reflective conductive connection segment is undulating.
27. The photovoltaic device of claim 25, wherein the reflective conductive connection segments are triangular in cross-section.
28. The photovoltaic device of claim 17 or 18, wherein the extended conductive connection segments have a greater width than the reflective conductive connection segments.
29. The photovoltaic device of claim 17 or 18, wherein the conductive strip comprises a conductive layer and a solder layer, wherein the solder layer is disposed on a surface of the conductive layer, the reflective conductive connection segment comprises at least a portion of the solder layer and at least a portion of the conductive layer, and the extended conductive connection segment comprises a remaining portion of the solder layer and a remaining portion of the conductive layer.
30. A photovoltaic device according to claim 17 or 18, wherein the conductive strip is extruded at predetermined locations through a conductive layer with a solder layer, wherein extruded portions of the conductive strip form the extended conductive connection and non-extruded portions of the conductive strip form the reflective conductive connection.
31. A method of manufacturing a conductive tape, comprising the steps of:
the conductive band is extruded at a preset position of the conductive band to obtain the conductive band with a reflective conductive connecting section and an extension conductive connecting section, wherein the connecting part of the reflective conductive connecting section and the extension conductive connecting section is extruded to form a concave cambered surface.
32. The conductive tape manufacturing method as claimed in claim 31, further comprising the steps of:
the reflective conductive connection segments form a triangular cross-section.
33. The conductive tape manufacturing method as claimed in claim 31, further comprising the steps of:
the reflective conductive connection segments are formed with trapezoidal cross sections.
34. The conductive tape manufacturing method as claimed in claim 31, further comprising the steps of:
forming said extended conductive connection segments in a flat shape.
35. The manufacturing method according to any one of claims 31 to 34, further comprising, before the extruding step, the steps of:
solder is attached to the surface of a wire to obtain the conductive tape with solder.
36. The manufacturing method as claimed in any one of claims 31 to 34, wherein in the pressing step, the conductive tape is pressed by a pressing head, and an edge position of the pressing head is set to be rounded so that the curved surface is formed at a junction of the reflective conductive connecting section and the extended conductive connecting section.
CN202010065845.4A 2020-01-20 2020-01-20 Conductive tape, photovoltaic device and application thereof Pending CN111162137A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3117673A1 (en) * 2020-12-16 2022-06-17 Commissariat A L'energie Atomique Et Aux Energies Alternatives Interconnector for strings of solar cells intended to form a photovoltaic module

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208045523U (en) * 2018-04-18 2018-11-02 刘岩岩 A kind of connection structure of low resistance type reflective solder strip
CN109616540A (en) * 2019-01-30 2019-04-12 浙江晶科能源有限公司 A kind of battery strings and a kind of photovoltaic module
CN110518077A (en) * 2019-08-30 2019-11-29 苏州阿特斯阳光电力科技有限公司 A kind of solar battery sheet and photovoltaic module
CN209822672U (en) * 2019-07-09 2019-12-20 苏州阿特斯阳光电力科技有限公司 Photovoltaic conductive piece manufacturing device
CN211404516U (en) * 2020-01-20 2020-09-01 宁波森联光电科技有限公司 Conductive tape and photovoltaic device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208045523U (en) * 2018-04-18 2018-11-02 刘岩岩 A kind of connection structure of low resistance type reflective solder strip
CN109616540A (en) * 2019-01-30 2019-04-12 浙江晶科能源有限公司 A kind of battery strings and a kind of photovoltaic module
CN209822672U (en) * 2019-07-09 2019-12-20 苏州阿特斯阳光电力科技有限公司 Photovoltaic conductive piece manufacturing device
CN110518077A (en) * 2019-08-30 2019-11-29 苏州阿特斯阳光电力科技有限公司 A kind of solar battery sheet and photovoltaic module
CN211404516U (en) * 2020-01-20 2020-09-01 宁波森联光电科技有限公司 Conductive tape and photovoltaic device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
沈煜: "《材料力学》", 30 April 1988, 高等教育出版社, pages: 51 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3117673A1 (en) * 2020-12-16 2022-06-17 Commissariat A L'energie Atomique Et Aux Energies Alternatives Interconnector for strings of solar cells intended to form a photovoltaic module
WO2022129278A1 (en) * 2020-12-16 2022-06-23 Commissariat A L'energie Atomique Et Aux Energies Alternatives Interconnector for strings of solar cells that are intended to form a photovoltaic module

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