CN104779311A - Solar cell module and forming method thereof - Google Patents
Solar cell module and forming method thereof Download PDFInfo
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- CN104779311A CN104779311A CN201410016567.8A CN201410016567A CN104779311A CN 104779311 A CN104779311 A CN 104779311A CN 201410016567 A CN201410016567 A CN 201410016567A CN 104779311 A CN104779311 A CN 104779311A
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- 239000004065 semiconductor Substances 0.000 claims description 32
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- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 15
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- 239000000463 material Substances 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 229910052745 lead Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052718 tin Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000002313 adhesive film Substances 0.000 description 12
- 238000007639 printing Methods 0.000 description 9
- 238000007650 screen-printing Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 6
- 229920001903 high density polyethylene Polymers 0.000 description 6
- 239000004700 high-density polyethylene Substances 0.000 description 6
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- 239000002002 slurry Substances 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a solar cell module which consists of a plurality of independent solar cell units, wherein conductive components are placed between solar cell packs; and the solar cell units are electrically connected through connection of first and second leads which are arranged on first and second surfaces of the solar cell units respectively and the conductive components, so that the area of the solar cell module can be conveniently arranged as required. Correspondingly, the invention further provides a forming method of the solar cell module. The method is low in manufacturing cost and easy to apply.
Description
Technical field
The present invention relates to field of semiconductor manufacture, particularly solar cell manufactures field, more specifically, the present invention relates to a kind of solar module and forming method thereof.
Background technology
First existing solar battery structure normally forms solar battery sheet, this solar battery sheet is complete platy structure, existing solar battery sheet is being carried out in the technique of bus processing, it is the technology adopting silk screen printing, printing process is first placed on print station by solar battery sheet, very meticulous printing screen is fixed on screen frame, is placed on above cell piece; Silk screen has electrocondution slurry can through need print pattern.Appropriate slurry is positioned on silk screen, smears slurry with scraper, make its uniform filling among mesh.Scraper is expressed to slurry on cell piece by screen mesh in the process of movement.The temperature of this process, pressure, speed and its dependent variable all must strictly control.In the above-described techniques, because cell piece is integral structure, the electrocondution slurry being therefore positioned at one side can not penetrate into another side due to printing.
But along with the continuous innovation of area of solar cell technology and development, there is a kind of new solar battery structure, wherein each solar battery cell is independently, such solar cell has the facility of processing cost and process aspect, and can configure the area of solar cell as required easily.But above-described screen printing technique but can not be applied in such solar cell, because silk screen printing can cause the electrocondution slurry of solar battery cell one side penetrate into another side when printing thus cause the problems such as short circuit to make the performance of solar cell be affected.
Therefore, need to propose a kind of method forming the conductor bus of solar cell, the generation of above-mentioned situation can be avoided, under the prerequisite not affecting solar cell properties, make solar cell more easily be configured, reduce manufacturing cost and be easy to application according to actual needs simultaneously.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency.
The present invention proposes a kind of solar module, comprise: solar battery array, comprise multiple solar battery group be set up in parallel, each described solar battery group comprises one independently or multiple independently solar battery cell be set up in parallel, and each solar battery cell at least comprises the second semiconductor layer under the first semiconductor layer, the first semiconductor layer; First wire, on the first surface being placed in solar battery cell, is electrically connected with solar battery cell, and runs through each solar battery cell in solar battery group; Second wire, on the second surface being placed in solar battery cell, is electrically connected with solar battery cell, and runs through each solar battery cell in solar battery group; Conductive component, is placed between adjacent solar battery group, and the sidewall of the solar battery cell adjacent with this conductive component separately; Wherein, first wire of same solar battery group contacts same conductive component time different with the second wire, for each solar battery group, the first wire on it is only electrically connected to the conductive component being positioned at its first side, and the second wire on it is only electrically connected to the conductive component being positioned at its second side.
Wherein, the material of described conductive component is metal, comprises any one or combination in Al, Cr, Cu, Ag, Au, Fe, Ni, Pb, Zn, Co, Ti, Mg, Sn.
Wherein, described first wire and the second wire are metal wire or metal tape.
Wherein, described first wire and the second wire have conducting resinl, and described conducting resinl is positioned on the surface that the first wire and the second wire and solar battery cell and conductive member touch.
Wherein, described conducting resinl is following arbitrary: elargol, aluminium glue, silver-colored aluminium glue.
Wherein, described solar battery array also comprises: the insulation side wall wrapping up each solar battery cell sidewall.
Further, also comprise: packaging body, wrap up described solar battery array, the first wire, the second wire and conductive component.
Wherein, the outer surface that described conductive component enters light side towards solar battery array is outwardly shape.
Optionally, each solar battery group comprises the solar battery cell of identical or different quantity.
Wherein, be serial or parallel connection between the different solar battery cells in same solar battery group; It is series connection between different solar battery group.
The invention allows for a kind of formation method of solar module, comprise the steps: S1, solar battery array is provided, described solar battery array comprises multiple solar battery group be set up in parallel, described solar battery group comprises one independently or multiple independently solar battery cell be set up in parallel, and each solar battery cell at least comprises the second semiconductor layer under the first semiconductor layer, the first semiconductor layer; S2, between solar battery group, conductive component is set, the sidewall of conductive component and the solar battery cell adjacent with this conductive component separately, first wire is run through first surface and the conductive component of all solar battery cells, the first surface of the first wire and all solar battery cells and conductive component is made to fix and be electrically connected, and the second wire is run through second surface and the conductive component of all solar battery cells, make the second surface of the second wire and solar battery cell and conductive component fix and be electrically connected; S3, partly block the first wire between solar battery group side and the fixing point of conductive component and the second wire, to make for each solar battery group, the first wire on it is only electrically connected to the conductive component being positioned at its first side, and the second wire on it is only electrically connected to the conductive component being positioned at its second side.
Wherein, described step S2 is specially: between solar battery group, arrange conductive component, and the sidewall of conductive component and the solar battery cell adjacent with this conductive component separately; First wire surface with conducting resinl runs through first surface and the conductive component of all solar cells, first wire is coated with the surface of conducting resinl and contacts with the first surface of solar cell and conductive component, thus makes the first surface of the first wire and all solar battery cells and conductive component fix and be electrically connected; Second wire surface with conducting resinl runs through second surface and the conductive component of all solar cells, second wire is coated with the surface of conducting resinl and contacts with the second surface of solar cell and conductive component, thus makes the second surface of the second wire and all solar battery cells and conductive component fix and be electrically connected.
Wherein, described step S2 also comprises: dry described conducting resinl.
Wherein, described conducting resinl is following arbitrary: elargol, aluminium glue, silver-colored aluminium glue.
Wherein, the material of described conductive component is metal, comprises any one or combination in Al, Cr, Cu, Ag, Au, Fe, Ni, Pb, Zn, Co, Ti, Mg, Sn.
Wherein, described first wire and the second wire are metal wire or metal tape.
Further, also step is comprised: described solar battery array, the first wire, the second wire and conductive component are packaged in packaging body.
Wherein, described solar cell array also comprises the insulation side wall wrapping up each solar battery cell.
Wherein, the outer surface that described conductive component enters light side towards solar battery array is outwardly shape.
Optionally, each solar battery group comprises the solar battery cell of identical or different quantity.
Wherein, be serial or parallel connection between the different solar battery cells in same solar battery group; It is series connection between different solar battery group.
Be different from the monoblock cell piece in conventional art, solar module of the present invention is made up of multiple independently solar battery cell, conductive component is placed with between solar battery group, the first and second wires arranged respectively on the surface by solar battery cell first and second and the connection of conductive component, solar battery cell is electrically connected, thus the area of solar module can be configured as required easily, low cost of manufacture, also application is easy to, simultaneously, it also avoid silk screen printing can cause the conducting resinl of solar battery cell one side penetrate into another side when printing thus make the affected problem of the performance of solar cell, improve the performance of battery component.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1-Fig. 4 shows the schematic cross-section of each formation stages of solar module according to a first embodiment of the present invention;
Fig. 5 shows the schematic cross-section of solar module according to a second embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Defect in traditional solar battery sheet forming process, the present invention proposes a kind of solar module be made up of independently solar battery cell, is easy to be configured and apply, low cost of manufacture.This solar module comprises:
Solar battery array, comprise multiple solar battery group be set up in parallel, each described solar battery group comprises one independently or multiple independently solar battery cell be set up in parallel, and each solar battery cell at least comprises the second semiconductor layer under the first semiconductor layer, the first semiconductor layer;
First wire, on the first surface being placed in solar battery cell, is electrically connected with solar battery cell, and runs through each solar battery cell in solar battery group;
Second wire, on the second surface being placed in solar battery cell, is electrically connected with solar battery cell, and runs through each solar battery cell in solar battery group;
Conductive component, is placed between adjacent solar battery group, and the sidewall of the solar battery cell adjacent with this conductive component separately;
Wherein, first wire of same solar battery group contacts same conductive component time different with the second wire, for each solar battery group, first on it leads the conductive component that only line is electrically connected to its first side, and the second wire on it is only electrically connected to the conductive component of its second side.
Wherein, the solar battery cell of identical or different quantity can be comprised in each solar battery group in the present invention.
Wherein, be serial or parallel connection between the different solar battery cells in same solar battery group; It is series connection between different solar battery group.
Wherein, conductive component is separately with the sidewall of the solar battery cell be adjacent, that is, conductive component itself is non-electric connection with solar battery cell, but be electrically connected with conductive component by the first wire on solar battery cell, the second wire, thus realize the electrical connection between solar battery group.Can be realized them separately by arranging insulating element between the sidewall of solar battery cell and conductive component, such as, insulation side wall on solar battery cell sidewall or the insulation side wall on conductive component sidewall, also can by between the sidewall of solar battery cell and conductive component separately a segment distance realize them separately.
Be different from the monoblock cell piece in conventional art, solar module of the present invention is made up of multiple independently solar battery cell, conductive component is placed with between solar battery group, the first and second wires arranged respectively on the surface by solar battery cell first and second and the connection of conductive component, solar battery cell is electrically connected, thus the area of solar module can be configured as required easily, low cost of manufacture, also application is easy to, simultaneously, it also avoid silk screen printing can cause the conducting resinl of solar battery cell one side penetrate into another side when printing thus make the affected problem of the performance of solar cell, improve the performance of battery component.
Above the technical scheme of solar module of the present invention and effect being described, in order to understand the present invention better, below with reference to specific embodiment and accompanying drawing, embodiments of the invention and formation method being described in detail.
first embodiment
Shown in figure 3, in the present embodiment, this solar module comprises: solar battery array, the first wire, the second wire and conductive component.
Wherein, solar battery array is by multiple solar battery group 1011 be set up in parallel ... 1014 compositions, each solar battery group 1011 ... a solar battery cell 1011-1 is only comprised in 1014 ... 1014-1, namely, in this embodiment, solar battery group and solar battery cell, the quantity of the battery unit that solar battery array comprises and the area of each battery unit can actually as required be determined.For each solar battery cell 1011-1 ... 1014-1, at least comprise the first semiconductor layer 101a, the second semiconductor layer 101b under first semiconductor layer 101a, that is each described solar battery cell is can independently as the absolute construction of solar cell working, certainly, described solar battery cell can also comprise the first electrode on the first semiconductor layer and the second electrode on the second semiconductor layer, or can further include other intermediate layers or doped region, described first semiconductor layer can be N-type, and the second semiconductor layer is P type, or conversely, first semiconductor layer is P type, and the second semiconductor layer is N-type.
Shown in figure 3, conductive component 105-1 ... 105-3 is arranged on adjacent solar battery group 1011 ... between 1014, each solar battery cell sidewall is provided with insulation side wall 103, like this, realize between them by the side wall 103 that insulate between solar battery cell sidewall and conductive component spaced, described conductive component 105-1 ... the material of 105-3 is metal, comprises any one or combination in Al, Cr, Cu, Ag, Au, Fe, Ni, Pb, Zn, Co, Ti, Mg, Sn.The shape of described conductive component can be configured as required, preferably, shown in figure 4, the outer surface that described conductive component enters light side towards solar battery array is outwardly shape, can be such as cylinder, spheroid or spheroid etc., like this, the surface of protruding the conductive component of shape has better catadioptric effect, can improve the utilance of the light of solar battery array further.
Shown in figure 3, on the first surface that first wire 201 is placed in solar battery cell 1031, and run through the first surface of each solar battery cell, second wire 202 is placed on the second surface 1032 of solar battery cell, and run through the second surface of each solar battery cell, in the present embodiment, described first wire 201 and the second wire 202 also has conducting resinl (scheming not shown), preferably, only on the surface contacted with solar battery cell, namely the first wire 201 and the second wire 202 respectively with first surface 1031, the surface that second surface 1032 contacts has described conducting resinl, described conducting resinl is used for the first and second wires with the fixing of solar units and electrical connection, described conducting resinl can be elargol, aluminium glue, silver aluminium glue or other conducting resinls.Also can adopt other suitable methods that the first and second wires are fixed with the first and second surfaces of solar battery cell and are electrically connected.In the present invention, described first wire 201 and the second wire 202 are for the formation of the connecting line between solar battery cell, described first wire 201 and the second wire 202 can be metal wire or metal tape, material can be copper cash, aluminum steel, silver-colored line, the copper cash wrapping up TiAlN thin film or other conductive metallic materials, the cross section of wire can be, but be not limited to, circle, oval and rectangle.
First wire 201, second wire 202 and conductive component 105-1 ... 105-3 connects respectively, for each solar battery group 1011 ... 1014, the first wire 201 on it is electrically connected to the conductive component being positioned at its first side 1033, the second wire 202 on it is electrically connected to the conductive component being positioned at its second side 1034, in the present embodiment, can by the conducting resinl on the first wire 201 and the second wire 202, realize fixing and being electrically connected of wire and conductive component.
The annexation of wire, conductive component and solar battery cell is described for solar battery group 1012, solar battery group 1012 i.e. solar battery cell 1012-1, the first wire 201 on it is connected to the conductive component 105-2 being positioned at solar battery group 1,012 first side 1033, the second wire 202 on it is connected to the conductive component 105-1 being positioned at solar battery group 1,012 second side 1034, and the annexation of other battery pack in array is also the same.Thus, by the first wire, the second wire and conductive component, by the first semiconductor layer of adjacent two solar battery group and the electrical connection of the second semiconductor layer, namely define the solar module of the solar battery cell composition of the mutual series connection of the present embodiment.
In embodiments of the present invention, first wire and the second wire be oppositely arranged on solar battery cell first surface and second surface on, and the present invention is not limited to this, first wire and the second wire also can settings separately, and the quantity of the first wire and the second wire can be one or more.
The solar module of this structure, by the connection of independently solar battery cell and wire and conductive component, can be as required, select quantity and the area of solar battery cell, carry out the area of arbitrary disposition solar module, low cost of manufacture, also application is easy to, meanwhile, it also avoid silk screen printing and the conducting resinl of solar battery cell one side can be caused to penetrate into another side when printing thus make the affected problem of the performance of solar cell, improve the performance of battery component.
In addition, for above-mentioned solar module, shown in figure 4, packaging body 300 can also be comprised further, above-mentioned solar battery array is encapsulated in packaging body 300.
Preferably, described packaging body 300 comprises packaging body and lower package body; Described upper packaging body and lower package body are double-decker; Preferably; described double-decker comprises packaging adhesive film and lower packaging adhesive film; and the cap rock be positioned on packaging adhesive film and the bottom be positioned under lower packaging adhesive film; described cap rock and bottom can on the bases of upper packaging adhesive film and lower packaging adhesive film; solar battery cell is reinforced further, plays a protective role.
Wherein, the material of described upper packaging adhesive film and lower packaging adhesive film is preferably ethane-acetic acid ethyenyl resin copolymer (EVA), in other embodiments, the material of described upper packaging adhesive film and lower packaging adhesive film can also comprise polyvinyl butyral resin (PVB), PETG (PET), PC(Merlon), PMMA(polymethyl methacrylate), high density polyethylene (HDPE) (HDPE), polyvinyl chloride (PVC), low density polyethylene (LDPE) (LDPE), polypropylene (PP), polystyrene (PS), TPU, silicone, ionomer, one in light-cured resin or its combination in any.The material of described upper packaging adhesive film can be identical with the material of lower packaging adhesive film, also can be different.
Wherein, the material of described cap rock and bottom comprises glass or polymer and combination thereof, wherein glass comprises: low iron glass, toughened glass, plate glass, have one in textured glass, ultryiolet ray transmitting glass, SiO2AR coated glass or its combination in any, and polymer comprises: ethylene-tetrafluoroethylene copolymer, polyvinyl fluoride, THV200, PET, ethane-acetic acid ethyenyl resin copolymer (EVA), polyvinyl butyral resin (PVB), PETG (PET), PC(Merlon), PMMA(polymethyl methacrylate), high density polyethylene (HDPE) (HDPE), polyvinyl chloride (PVC), low density polyethylene (LDPE) (LDPE), polypropylene (PP), polystyrene (PS), TPU, silicone, ionomer, one in light-cured resin or its combination in any.Described cap rock can be identical with the material of bottom, also can not be identical.
Above the solar module of the present embodiment is described in detail, in addition, present invention also offers the manufacture method of above-described embodiment, be described in detail below with reference to legend.
First, solar battery array is provided, shown in figure 1, shown solar battery array comprises multiple solar battery group 1011 be set up in parallel ... 1014, each solar battery group comprises an independently solar battery cell 1011-1 ... 1014-1, each solar battery cell 1011-1 ... 1014-1 at least comprises the second semiconductor layer 101b under the first semiconductor layer 101a, the first semiconductor layer.
Then, shown in figure 1, in solar battery group 1011 ... conductive component 105-1 is set between 1014 ... 105-3, the sidewall of conductive component and the solar battery cell adjacent with this conductive component separately, in the present embodiment, the sidewall of solar battery cell has insulation side wall 103, realize conductive component and solar battery cell sidewall separately by this insulation side wall, the outer surface that described conductive component enters light side towards solar battery array is outwardly shape.
Then, shown in figure 2, first wire 201 surface with conducting resinl (scheming not shown) runs through first surface 1031 and the conductive component 105-1 of all solar cells ... 105-3, first wire 201 is coated with the surface of conducting resinl and contacts with the first surface 1031 of solar cell and conductive component, thus makes the first surface 1031 of the first wire 201 and all solar battery cells and conductive component fix and be electrically connected.
Particularly, the first surface of solar battery array and conductive component can be placed towards the conducting resinl surface of the first wire, thus make the first wire run through whole solar battery array and conductive component, preferably, the baking step of conducting resinl can be carried out, affect the performance of solar cell to avoid the displacement of conducting resinl.
Then, second wire 202 surface with conducting resinl runs through second surface 1032 and the conductive component 105-1 of all solar cells ... 105-3, second wire 202 is coated with the surface of conducting resinl and contacts with the second surface 1032 of solar cell and conductive component, thus makes the second surface 1032 of the second wire 202 and all solar battery cells and conductive component fix and be electrically connected.
Particularly, solar battery array can be overturn, the second surface of solar battery array and conductive component are placed towards the conducting resinl surface of the second wire, thus make the second wire run through whole solar battery array and conductive component, preferably, the baking step of conducting resinl can be carried out, affect the performance of solar cell to avoid the displacement of conducting resinl, alternatively, the step that this baking step can be dried with above-mentioned first wire conducting resinl is together carried out.
Then, as shown in Figure 3, partly block the first wire between solar battery group side and the fixing point of conductive component and the second wire, to make for each solar battery group 1011 ... 1014, the first wire 201 on it is only electrically connected to the conductive component being positioned at its first side 1033, and the second wire 202 on it is only electrically connected to the conductive component being positioned at its second side 1034.
Particularly, in the present embodiment, a solar battery cell is only comprised in solar battery group, namely solar battery group 1011 is blocked ... the second wire 202 between 1014 first sides 1033 and the fixing point of conductive component, and block solar battery group 1011 ... the first wire 201 between 1014 second sides 1034 and conductive component fixing point, described fixing point refers to the electric connection point of the first wire or the second wire and conductive component, thus defines the solar module of the solar battery cell composition of the mutual series connection of the present embodiment.
Afterwards, can subsequent machining technology be completed, such as, above-mentioned solar module be encapsulated, described solar battery array, the first wire, the second wire and conductive component are packaged in packaging body, form the encapsulating structure of solar module.
second embodiment
Above the solar module of the embodiment of the present invention one is described in detail, below the aspect being only different from embodiment one with regard to embodiment two is set forth, the part do not described will be understood that and to have employed similar structure, material with embodiment one, is connected and formation method, does not repeat them here.
Embodiment two is relative to the difference of embodiment one, be not only comprise a solar battery cell in solar battery group in solar battery array, but include multiple solar battery cell, all comprise two solar cells with each solar battery group in the present embodiment to be described, but the present invention is not limited to this, in other embodiments, each solar battery group can also comprise the solar battery cell of other quantity, and quantity can be identical or different.
Shown in figure 5, in the present embodiment, comprise solar battery group 1011, 1012, solar battery group 1011 comprises solar battery cell 1011-1, 1011-2, solar battery group 1012 comprises solar battery cell 1012-1, 1012-2, for each solar battery group, such as, for solar battery group 1011, first wire 201 runs through the solar battery cell 1011-1 in it, the first surface 1031 of 1011-2, and the first wire 201 of this solar battery group 1011 is connected to the conductive component 105-1 of this solar battery group 1,011 first side 1033, second wire 202 runs through the solar battery cell 1011-1 in it, the second surface 1032 of 1011-2, and the second wire 202 of this solar battery group 1011 is connected to the conductive component (scheming not shown) of this solar battery group 1,011 second side 1034, with embodiment one, the fixing of the first wire and the second wire and each battery unit in solar battery group 1011 and conductive component can be realized by the conducting resinl on the first wire and the second wire and be electrically connected, in the same manner, for solar battery group 1012, there is identical connection.
By this connected mode, first semiconductor layer of the battery unit in solar battery group links together, second semiconductor layer links together, make the battery unit in solar battery group for being connected in parallel, and between adjacent solar battery group, by conductive component, the first wire and the second wire are linked together, thus realize being connected in series between solar battery group, configure quantity and the connection of solar units neatly, realize the solar module of desired properties, low cost of manufacture, also application is easy to, simultaneously, it also avoid silk screen printing can cause the conducting resinl of solar battery cell one side penetrate into another side when printing thus make the affected problem of the performance of solar cell, improve the performance of battery component.
It should be noted that, in the present invention, the first side of solar battery group refers to that the side of the side of solar battery group, the second side of solar battery group refer to the opposite side of the side of solar battery group.
Above the place that the present embodiment is different from embodiment one is illustrated, for the formation method of this embodiment, similar with embodiment one, difference is only, as shown in Figure 5, in the step that conductive component is set, only at predetermined solar battery cell 1011-2, conductive component 105-1 is placed between 1012-1, that is, only between the adjacent battery unit needing serial connection, i.e. solar battery group 1011, between 1012, place conductive component 105-1, like this, between solar battery cell in solar battery group be and connect, between solar battery group is serial connection, achieve and can configure the quantity of solar units and the solar module of connection neatly.
Be more than solar module and the formation method of the embodiment of the present invention two.
Different from existing integral solar cell panel structure, solar module of the present invention, quantity and the connection of solar units can be configured neatly, realize the solar module of desired properties, low cost of manufacture, is also easy to application, simultaneously, it also avoid silk screen printing can cause the conducting resinl of solar battery cell one side penetrate into another side when printing thus make the affected problem of the performance of solar cell, improves the performance of battery component.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (21)
1. a solar module, comprising:
Solar battery array, comprise multiple solar battery group be set up in parallel, each described solar battery group comprises one independently or multiple independently solar battery cell be set up in parallel, and each solar battery cell at least comprises the second semiconductor layer under the first semiconductor layer, the first semiconductor layer;
First wire, on the first surface being placed in solar battery cell, is electrically connected with solar battery cell, and runs through each solar battery cell in solar battery group;
Second wire, on the second surface being placed in solar battery cell, is electrically connected with solar battery cell, and runs through each solar battery cell in solar battery group;
Conductive component, is placed between adjacent solar battery group, and the sidewall of the solar battery cell adjacent with this conductive component separately;
Wherein, first wire of same solar battery group contacts same conductive component time different with the second wire, for each solar battery group, the first wire on it is only electrically connected to the conductive component being positioned at its first side, and the second wire on it is only electrically connected to the conductive component being positioned at its second side.
2. solar module according to claim 1, is characterized in that, the material of described conductive component is metal, comprises any one or combination in Al, Cr, Cu, Ag, Au, Fe, Ni, Pb, Zn, Co, Ti, Mg, Sn.
3. solar module according to claim 1, is characterized in that, described first wire and the second wire are metal wire or metal tape.
4. solar module according to claim 1, is characterized in that, described first wire and the second wire have conducting resinl, and described conducting resinl is positioned on the surface that the first wire and the second wire and solar battery cell and conductive member touch.
5. solar module according to claim 5, is characterized in that, described conducting resinl is following arbitrary: elargol, aluminium glue, silver-colored aluminium glue.
6. solar module according to claim 1, is characterized in that, described solar battery array also comprises: the insulation side wall wrapping up each solar battery cell sidewall.
7. solar module according to claim 1, is characterized in that, also comprises: packaging body, wraps up described solar battery array, the first wire, the second wire and conductive component.
8. the solar module according to any one of claim 1-7, is characterized in that, the outer surface that described conductive component enters light side towards solar battery array is outwardly shape.
9. the solar module according to any one of claim 1-7, is characterized in that, each solar battery group comprises the solar battery cell of identical or different quantity.
10. the solar module according to any one of claim 1-7, is characterized in that, is serial or parallel connection between the different solar battery cells in same solar battery group; It is series connection between different solar battery group.
The formation method of 11. 1 kinds of solar modules, comprises the steps:
S1, solar battery array is provided, described solar battery array comprises multiple solar battery group be set up in parallel, described solar battery group comprises one independently or multiple independently solar battery cell be set up in parallel, and each solar battery cell at least comprises the second semiconductor layer under the first semiconductor layer, the first semiconductor layer;
S2, between solar battery group, conductive component is set, the sidewall of conductive component and the solar battery cell adjacent with this conductive component separately, first wire is run through first surface and the conductive component of all solar battery cells, the first surface of the first wire and all solar battery cells and conductive component is made to fix and be electrically connected, and the second wire is run through second surface and the conductive component of all solar battery cells, make the second surface of the second wire and solar battery cell and conductive component fix and be electrically connected;
S3, partly block the first wire between solar battery group side and the fixing point of conductive component and the second wire, to make for each solar battery group, the first wire on it is only electrically connected to the conductive component being positioned at its first side, and the second wire on it is only electrically connected to the conductive component being positioned at its second side.
The formation method of 12. solar modules according to claim 11, is characterized in that, described step S2 is specially:
Between solar battery group, arrange conductive component, the sidewall of conductive component and the solar battery cell adjacent with this conductive component separately;
First wire surface with conducting resinl runs through first surface and the conductive component of all solar cells, first wire is coated with the surface of conducting resinl and contacts with the first surface of solar cell and conductive component, thus makes the first surface of the first wire and all solar battery cells and conductive component fix and be electrically connected;
Second wire surface with conducting resinl runs through second surface and the conductive component of all solar cells, second wire is coated with the surface of conducting resinl and contacts with the second surface of solar cell and conductive component, thus makes the second surface of the second wire and all solar battery cells and conductive component fix and be electrically connected.
The formation method of 13. solar modules according to claim 12, is characterized in that, described step S2 also comprises: dry described conducting resinl.
The formation method of 14. solar modules according to claim 12, is characterized in that, described conducting resinl is following arbitrary: elargol, aluminium glue, silver-colored aluminium glue.
The formation method of 15. solar modules according to claim 11, is characterized in that, the material of described conductive component is metal, comprises any one or combination in Al, Cr, Cu, Ag, Au, Fe, Ni, Pb, Zn, Co, Ti, Mg, Sn.
The formation method of 16. solar modules according to claim 11, is characterized in that, described first wire and the second wire are metal wire or metal tape.
The formation method of 17. solar modules according to claim 11, is characterized in that, also comprise step: described solar battery array, the first wire, the second wire and conductive component are packaged in packaging body.
The formation method of 18. solar modules according to claim 11, is characterized in that, described solar cell array also comprises the insulation side wall wrapping up each solar battery cell.
The formation method of 19. solar modules according to any one of claim 11-18, it is characterized in that, the outer surface that described conductive component enters light side towards solar battery array is outwardly shape.
The formation method of 20. solar modules according to any one of claim 11-18, it is characterized in that, each solar battery group comprises the solar battery cell of identical or different quantity.
21. solar modules according to any one of claim 11-18, it is characterized in that, be serial or parallel connection between the different solar battery cells in same solar battery group; It is series connection between different solar battery group.
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| CN201410016567.8A CN104779311A (en) | 2014-01-15 | 2014-01-15 | Solar cell module and forming method thereof |
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| CN201410016567.8A CN104779311A (en) | 2014-01-15 | 2014-01-15 | Solar cell module and forming method thereof |
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