CN209675306U - Solar module - Google Patents
Solar module Download PDFInfo
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- CN209675306U CN209675306U CN201920248467.6U CN201920248467U CN209675306U CN 209675306 U CN209675306 U CN 209675306U CN 201920248467 U CN201920248467 U CN 201920248467U CN 209675306 U CN209675306 U CN 209675306U
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- solar cell
- cell piece
- back contacts
- solar
- regular hexagon
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
This application discloses a kind of solar modules, including rectangular border, multiple concatenated first solar cell pieces are arranged in sequence in frame, first solar cell piece is obtained by equal part regular hexagon back contacts solar cell piece, it further include multiple concatenated solar cell piece groups, solar cell piece group is for filling up the gap between the first solar cell piece and frame, solar cell piece group is connected with the first solar cell piece, single first solar cell piece is equal with the light-receiving area of single solar cell piece group, it can be improved the utilization rate of silicon rod raw material, reduce the waste of raw material, reduce production cost, compare traditional quadrangle or subquadrate solar cell piece, it does not need that chamfering is arranged in edge, it avoids when conventional chamfer subquadrate cell piece is laid with positioned at the waste of the white space of chamfered area, it can be improved solar panel Light-receiving area, component power and the generating efficiency of part.
Description
Technical field
The utility model relates generally to photovoltaic art, and in particular to solar cell field more particularly to a kind of solar cell
Component.
Background technique
Solar cell needs to continue cost efficiency to enhance it as the competitive advantage of alternative energy source.The cost of silicon wafer accounts for
30% or so of all costs of material of solar cell, improve silicon rod silicon material utilization rate can be effectively reduced solar cell at
This.
Mainstream silicon wafer (quadrangle/subquadrate) is cut by cylindrical silicon rod (vertical pulling method is prepared) at present,
More waste material is generated since corner cannot be made full use of, manufactured cell piece area is small (loss effective area is big), on an equal basis
Component power made of the battery sheet packaging of quantity is also relatively low.
Utility model content
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of raising raw material availability and component power
Solar module.
In a first aspect, the solar module of the utility model, including rectangular border, it is arranged in sequence in frame multiple
Concatenated first solar cell piece, the first solar cell piece are obtained by equal part regular hexagon back contacts solar cell piece, are also wrapped
Multiple concatenated solar cell piece groups are included, solar cell piece group is used to fill up the gap between the first solar cell piece and frame,
Solar cell piece group is connected with the first solar cell piece, the light-receiving surface of single first solar cell piece and single solar cell piece group
Product is equal.
According to technical solution provided by the embodiments of the present application, by arranging multiple first solar cell pieces in frame, the
One solar cell piece is obtained by equal part regular hexagon back contacts solar cell piece, and regular hexagon back contacts solar cell piece can be with
The regular hexagon silicon wafer being cut by cylindrical silicon rod is made, and can be improved the utilization rate of silicon rod raw material, reduces the waste of raw material,
Production cost is reduced, meanwhile, so that being covered with solar cell piece in frame, compare traditional quadrangle or the subquadrate sun
Cell piece does not need that chamfering is arranged in edge, avoids when conventional chamfer subquadrate cell piece is laid with and is located at chamfered area
White space waste, can be improved light-receiving area, component power and the generating efficiency of solar module, be able to solve
The low problem of existing solar cell piece raw material availability.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of the solar module of the embodiments of the present invention；
Fig. 2 is the structural schematic diagram of the solar module of the embodiments of the present invention；
Fig. 3 is the structural schematic diagram of the solar module of the embodiments of the present invention；
Fig. 4 is the structural schematic diagram of the solar module of the embodiments of the present invention；
Fig. 5 is the structural schematic diagram of the solar module of the embodiments of the present invention；
Fig. 6 is that the back contacts solar cell piece of the solar module of the embodiments of the present invention is the knot of MWT battery
Structure schematic diagram.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.It further needs exist for illustrating
, part relevant to utility model is illustrated only for ease of description, in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Please refer to Fig. 1 to 4, the solar module of the utility model, including rectangular border 100, in frame 100 successively
Multiple concatenated first solar cell pieces 200 are arranged with, the first solar cell piece 200 passes through the equal part regular hexagon back contacts sun
Cell piece obtains, and further includes multiple concatenated solar cell piece groups 310, solar cell piece group 310 is for filling up first sun electricity
Gap between pond piece 200 and frame 100, solar cell piece group 310 are connected with the first solar cell piece 200, and single first too
Positive cell piece 200 is equal with the light-receiving area of single solar cell piece group 310.
Multiple concatenated first solar cell pieces, the sun are arranged in sequence in the embodiments of the present invention, in frame
Cell piece group is for filling up the gap between the first solar cell piece and frame, so that being covered with solar cell piece in frame, compares
Traditional quadrangle or subquadrate solar cell piece does not need that chamfering is arranged in edge, avoids conventional chamfer closely just
Rectangular cell piece be laid with when positioned at chamfered area white space waste, can be improved solar module light-receiving area,
Component power and generating efficiency.
First solar cell piece is obtained by equal part regular hexagon back contacts solar cell piece, the regular hexagon back contacts sun
The regular hexagon silicon wafer that cell piece can be cut by cylindrical silicon rod is made, and can be improved the utilization rate of silicon rod raw material, reduces
The waste of raw material, reduces production cost.
Single solar cell piece group is equal with the light-receiving area of single first solar cell piece, it is, guarantee first is too
The corresponding electric current of the maximum power point of positive cell piece electric current corresponding with the maximum power point of solar cell piece group is identical, can keep away
Exempt from concatenated first solar cell piece and solar cell piece group generates bucket effect, improves the power generation effect of solar module
Rate.
Further, solar cell piece group 310 includes at least two second solar cell pieces 300, solar cell piece group 310
Interior the second solar cell piece 300 is in parallel to constitute solar cell piece group 310, and the second solar cell piece 300 passes through positive six side of equal part
Shape back contacts solar cell piece obtains.
In the embodiments of the present invention, the second solar cell piece passes through equal part regular hexagon back contacts solar cell piece
It obtains, the regular hexagon silicon wafer that regular hexagon back contacts solar cell piece can be cut by cylindrical silicon rod is made, Neng Gouti
The utilization rate of high silicon rod raw material, reduces the waste of raw material, reduces production cost.
Second solar cell piece can fill up the gap between the first solar cell piece and frame, so that being covered with too in frame
Positive cell piece compares traditional quadrangle or subquadrate solar cell piece, does not need that chamfering is arranged in edge, avoids
Positioned at the waste of the white space of chamfered area when conventional chamfer subquadrate cell piece is laid with, solar module can be improved
Light-receiving area, component power and generating efficiency.
Adjacent the second solar cell piece solar cell piece group in series can be can reduce into the length of connection circuit
Degree, and the difficulty of processing of solar module is reduced, reduce the manufacturing cost of solar module.
Further, the second solar cell piece 300 be half piece regular hexagon back contacts solar cell piece, three/
A piece of regular hexagon back contacts solar cell piece, quarter-wave plate regular hexagon back contacts solar cell piece, six/it is a piece of just
Any one in hexagon back contacts solar cell piece, ten half piece regular hexagon back contacts solar cell pieces.
In the embodiments of the present invention, the second solar cell piece passes through equal part regular hexagon back contacts solar cell piece
It obtains, the regular hexagon silicon wafer that regular hexagon back contacts solar cell piece can be cut by cylindrical silicon rod is made, Neng Gouti
The utilization rate of high silicon rod raw material, reduces the waste of raw material, reduces production cost.
With reference to Fig. 1 and 2, further, the first solar cell piece 200 is arranged successively along any side of frame 100, is located at
Solar cell piece group 310 is provided between one end and frame 100 of the first solar cell piece 200 of same row.
In the embodiments of the present invention, the first solar cell piece is arranged successively along any side of frame, after arrangement
The first solar cell piece both sides opposite with frame contact, the first solar cell piece and side are filled up by solar cell piece group
Gap between frame, the first solar cell piece and solar cell piece group of same row pieces together cuboid, so that being covered in frame
Solar cell piece compares traditional quadrangle or subquadrate solar cell piece, does not need that chamfering is arranged in edge, avoids
Positioned at the waste of the white space of chamfered area when conventional chamfer subquadrate cell piece is laid with, solar panel can be improved
Light-receiving area, component power and the generating efficiency of part.
Further, adjacent the second solar cell piece 300 is in parallel constitutes solar cell piece group 310.
In the embodiments of the present invention, adjacent second solar cell piece parallel connection constitutes solar cell piece group, can subtract
The length for connecting circuit less, reduces the manufacturing cost of solar module.
Further, the first adjacent solar cell piece 200 along frame 100 longitudinal direction or broadside successively
Series connection.
In the embodiments of the present invention, the first adjacent solar cell piece is successively gone here and there along the longitudinal direction of frame
Connection, the first adjacent solar cell piece with reference to Fig. 2, can back and forth be connected along the longitudinal direction of frame, be can reduce
The difficulty of processing of solar module improves the processing efficiency of solar module.
The first adjacent solar cell piece is sequentially connected in series along the broadside of frame, can be along the longitudinal direction of frame
Back and forth the first adjacent solar cell piece is connected, can reduce the difficulty of processing of solar module, improves sun electricity
The processing efficiency of pond component.
Further, the first solar cell piece 200 is diamond shape, and the first solar cell piece 200 passes through trisection regular hexagon
Back contacts solar cell piece obtains, alternatively,
First solar cell piece 200 is right-angled trapezium, and the first solar cell piece 200 passes through quartering regular hexagon back contacts
Solar cell piece obtains.
In the embodiments of the present invention, with reference to Fig. 1-3, the first solar cell piece is diamond shape, the first solar cell piece
It is obtained by trisection regular hexagon back contacts solar cell piece, regular hexagon back contacts solar cell piece can be by cylindrical silicon
The regular hexagon silicon wafer that stick is cut into is made, and can be improved the utilization rate of silicon rod raw material, reduces the waste of raw material, reduces production
Cost.
With reference to Fig. 4, the first solar cell piece is right-angled trapezium, and the first solar cell piece is connect by quartering regular hexagon back
It touches solar cell piece to obtain, the regular hexagon silicon wafer that regular hexagon back contacts solar cell piece can be cut by cylindrical silicon rod
It is made, can be improved the utilization rate of silicon rod raw material, reduce the waste of raw material, reduce production cost.Solar cell piece group passes through
Three piece of second solar cell piece parallel connection is constituted, and the second solar cell piece is that ten bisection regular hexagon back contacts solar cell pieces obtain
, the second solar cell piece is right angled triangle.
With reference to Fig. 5, further, the first solar cell piece 200 and solar cell piece group 310 constitute battery lamella 30, electricity
The back side of pond lamella 30 is fixedly connected with insulating layer 40, and insulating layer 40 is fixedly connected with several lead backwards to the side of battery lamella 30
Electric metal foil circuit 50 is provided with gap, the first solar cell piece 200 and sun electricity between adjacent conductive metal foil circuit 50
Pond piece group 310 is electrically connected by conductive metal foil circuit 50, and conductive metal foil circuit 50 passes through backwards to the side of battery lamella 30
Adhesive layer 60 is bonded with polymer backboard 70.
In the embodiments of the present invention, the back side of battery lamella is fixedly connected with insulating layer, in this application, battery
The front of lamella refers to that the light-receiving surface of solar cell, light-receiving surface refer to the one side of the solar cell face sun, battery lamella
The back side refers to that the shady face of solar cell, shady face refer to solar cell back to the one side of the sun, at the back side of battery lamella
It is fixedly connected with insulating layer, can be avoided insulating layer influences battery lamella progress daylighting, ensure that the photoelectricity of solar module turns
Change efficiency.
Insulating layer is fixedly connected with several conductive metal foil circuits backwards to the side of battery lamella, and conductive metal foil circuit is logical
Electric connector is crossed to be electrically connected with the realization of the electrode of battery lamella.To need two of concatenated two pieces of back contacts solar cell pieces not
Same electrode is electrically connected with the same conductive metal foil circuit, specifically, by the anode of one of back contacts solar cell piece
And the cathode of another piece of back contacts solar cell piece is electrically connected with the same conductive metal foil circuit, by one of back contacts
The anode of the cathode of solar cell piece and another piece of back contacts solar cell piece is electrically connected with the same conductive metal foil circuit.
Two identical electrodes of two pieces of back contacts solar cell pieces in parallel will be needed to be electrically connected with the same conductive metal foil circuit,
Specifically, by positive and another piece of back contacts solar cell piece of one of back contacts solar cell piece anode with it is same
A conductive metal foil circuit electrical connection, by the cathode of one of back contacts solar cell piece and another block of back contacts sun electricity
The cathode of pond piece is electrically connected with the same conductive metal foil circuit.Anode and the cathode difference of same back contacts solar cell piece
It is electrically connected disjunct conductive metal foil circuit, and is provided with gap between adjacent conductive metal foil circuit, is avoided
Solar cell piece short circuit.It does not need to connect back contacts solar cell piece by way of welding welds, avoids the back contacts sun
There is bending arculae in cell piece, reduces the fragment rate of solar cell piece.
Solar cell piece is electrically connected by conductive metal foil circuit, is drawn the electrode of solar cell piece by electric connector
Out, the in series or in parallel of solar cell piece is then realized by conductive metal foil circuit, avoids back contacts solar cell piece
Short circuit is generated, insulating layer can prevent adjacent electric connector to be electrically connected, improve the incident photon-to-electron conversion efficiency of solar cell piece, mention
The high reliability of back contacts solar modules.
Conductive metal foil circuit is bonded with polymer backboard by adhesive layer backwards to the side of battery lamella, passes through adhesive layer
Conductive metal foil circuit and polymer backboard are adhesively fixed, convenient for being fixed and patterning to conductive metal foil
Processing forms conductive metal foil circuit, improves processing efficiency and processing accuracy.
Back contacts solar cell piece can be with but not just for IBC solar cell, MWT solar cell, EWT solar cell.Back
The light-receiving surface of contact solar cell piece, which can be electrodeless structure, (has main grid structure and back using IBC battery structure, including the back side
Face dereliction grid structure), it is also possible to thin gate electrode structure (using MWT battery structure).Back contacts solar cell piece uses N-type silicon
Substrate or P-type silicon substrate.
The material of polymer backboard can be with but not just for TPT, TPE, KPE, KPK, KPC or KPF.Polymer backboard can also
It is made of totally new kind of material, it may include the several layers and adhesive layer that are made of insulating materials (such as PET or PP) contain
The polymeric multilayer structure that fluoropolymer coating is combined, thickness and cost can be greatly reduced, and be electrically insulated it is excellent,
Weatherability can also be guaranteed.
The material of conductive metal foil circuit is copper, silver, aluminium, nickel, magnesium, iron, titanium, molybdenum, any one in tungsten or a variety of
Combination, the material of conductive metal foil circuit be copper, silver, aluminium, nickel, magnesium, iron, titanium, molybdenum, any one in tungsten alloy or a variety of
The alloy of formation.
Electric connector is conductor, and the material of electric connector can be with but not just for electrocondution slurry, solder, soldering paste, conductive ink
Water, isotropic conductive adhesive, anisotropy conductiving glue, bulk or cylindrical metal, bulk or cylindrical metal alloy.Electrical connection
Body can be formed by silk-screen printing or mode for dispensing glue, and the material of electric connector can be with but not just for soldering paste or with sheet
Silver powder is conductive fill phase, the conducting resinl based on epoxy resin and/or acrylic resin.
Further, battery lamella 30 is fixedly connected with preceding encapsulated layer 20, preceding encapsulated layer 20 backwards to the side of insulating layer 40
Front shroud 10 is fixedly connected with backwards to the side of battery lamella 30.
In the embodiments of the present invention, the material of preceding encapsulated layer can be with but not just for EVA (ethene-vinyl acetate
Copolymer), PVB (polyvinyl butyral), POE (thermoplasticity and/or thermosetting polyolefin) or Ionomer (polyethylene-second
Acid esters ionomer).The material of preceding encapsulated layer is EVA, carries out encapsulated layer before obtaining under the conditions of 147 DEG C lamination 10 minutes.
Front shroud can with but not just for embossing tempered glass, the thickness 3.2mm of front shroud.
Further, insulating layer 40 has been positioned apart from several openings 42, and electric connector 41 passes through opening 42.
In the embodiments of the present invention, insulating layer has been positioned apart from several openings, and electric connector passes through opening, energy
Enough guarantee that electric connector is electrically connected with the electrode of conductive metal foil circuit and back contacts solar cell piece respectively, avoids insulating layer
It hinders electric connector to be electrically connected respectively with the electrode of conductive metal foil circuit and back contacts solar cell piece, improves back contacts
The yields of solar module.Meanwhile it also can reduce the difficulty of processing of back contacts solar module.
Further, 42 shape of being open is round or rectangular.
In the embodiments of the present invention, the shape of opening is round perhaps rectangular easy to process or formation opening,
The difficulty of processing for reducing back contacts solar module, improves the processing efficiency of back contacts solar module.
Further, 42 quantity of opening are 100-50000 or 5000-2000000 or 100-10000.
In the embodiments of the present invention, when back contacts solar cell piece is that the back side has main grid IBC battery, opening number
Amount is 100-50000；When back contacts solar cell piece be the back side without main grid IBC battery when, open amount 5000-
2000000；When back contacts solar cell piece is MWT battery, open amount is 100-10000.
Further, thickness≤500 micron of insulating layer 40, the thickness G T.GT.GT 0 of insulating layer, adhesive layer with a thickness of 10-500
Micron.
In the embodiments of the present invention, adhesive layer can be glued with but not just for EVA adhesive film, POE glue film or PVB film
Connect layer with a thickness of 10-500 microns.Thickness≤500 micron of insulating layer, the thickness G T.GT.GT 0 of insulating layer, insulating layer have certain anti-
Heat deformability so that insulating layer deformed in lamination process it is smaller, convenient for the electrode of back contacts solar cell piece be electrically connected
Body alignment, improves the processing accuracy of back contacts solar module, improves yields.Meanwhile it also can be avoided insulation
Layer is blocked up, reduces manufacturing cost.
Further, insulating layer 40 with a thickness of 50-200 microns.
In the embodiments of the present invention, insulating layer with a thickness of 50-200 microns, insulating layer becomes with certain heat resistanceheat resistant
Shape ability so that insulating layer deformed in lamination process it is smaller, convenient for back contacts solar cell piece electrode and electric connector pair
Standard improves the processing accuracy of back contacts solar module, improves yields.Meanwhile it also can be avoided insulating layer mistake
Thickness reduces manufacturing cost.
Further, the material of conductive metal foil circuit 50 is copper foil or aluminium foil, the thickness of conductive metal foil circuit 50
It is 10-100 microns.
In the embodiments of the present invention, the material of conductive metal foil circuit is copper foil or aluminium foil, conductive metal foil
Circuit with a thickness of 10-100 microns, conductive metal foil circuit is capable of providing low-resistance current path, and ensure that conduction
Metal-foil circuits will not be too thick, under the premise of ensure that the electric conductivity of conductive metal foil circuit, avoids the back contacts sun electric
The manufacturing cost of pond component is excessively high.
Further, conductive metal foil circuit 50 with a thickness of 10-500 microns.
In the embodiments of the present invention, conductive metal foil circuit with a thickness of 10-500 microns, conductive metal foil electricity
Road is capable of providing low-resistance current path, and ensure that conductive metal foil circuit will not be too thick, ensure that conductive metal
Under the premise of the electric conductivity of foil circuit, avoid the manufacturing cost of back contacts solar module excessively high.
Further, the conductive metal foil circuit 50 positioned at 30 edge of battery lamella exposes 30 edge of battery lamella.
In the embodiments of the present invention, when the light-receiving area of each back contacts solar cell piece is identical, it is only necessary to will
Each back contacts solar cell piece is connected, and is not needed so that conductive metal foil circuit exposes battery lamella edge.When each back connects
When touching the light-receiving area difference of solar cell piece, in order to avoid wooden pail effect, need the back contacts solar cell piece of small area
Parallel connection is first carried out, then is connected with the back contacts solar cell piece of large area, the conductive metal foil at battery layers edge can will be located at
Circuit exposes battery lamella edge, and conductive metal foil circuit exposes the part at battery lamella edge for designing connection circuit, just
Circuit connection is carried out between the back contacts solar cell piece of small area, improves the processing effect of back contacts solar module
Rate.
Further, back contacts solar cell piece 31 is provided with just superfine grid line, the thin grid line of cathode, p-type doping region and n
Type doped region, just superfine grid line are contacted with p-type doping region, and the thin grid line of cathode is contacted with n-type doping region, just superfine grid line
It is electrically connected respectively with electric connector with the thin grid line of cathode, the just superfine grid line and cathode on any back contacts solar cell piece 31 are thin
The sum of quantity of grid line is 50-1000 root, the electric connector being electrically connected with any just superfine grid line or the thin grid line of cathode
Quantity is 1-100.
In the embodiments of the present invention, when back contacts solar cell piece be the back side without main grid IBC battery when, back contacts
Solar cell piece is provided with just superfine grid line, the thin grid line of cathode, p-type doping region and n-type doping region, just superfine grid line and p
The contact of type doped region, the thin grid line of cathode contacts with n-type doping region, just superfine grid line and the thin grid line of cathode respectively be electrically connected
Body electrical connection, passes through just superfine grid line and the thin grid line derived current of cathode.The just superfine grid of any back contacts solar cell on piece
The sum of quantity of line and the thin grid line of cathode is 50-1000 root, is electrically connected with any just superfine grid line or the thin grid line of cathode
The quantity of electric connector is 1-100.
Further, back contacts solar cell piece 31 is provided with just superfine grid line, the thin grid line of cathode, p-type doping region and n
Type doped region, just superfine grid line are contacted with p-type doping region, and the thin grid line of cathode is contacted with n-type doping region, just superfine grid line
It is electrically connected with positive connection electrode, the thin grid line of cathode is electrically connected with cathode connection electrode, and positive connection electrode connects electricity with cathode
Pole is electrically connected with electric connector respectively, the positive connection electrode and cathode connection electrode on any back contacts solar cell piece 31
The sum of quantity is 2-100 root, the quantity for the electric connector being electrically connected with any positive connection electrode or cathode connection electrode
It is 1-100.
In the embodiments of the present invention, when back contacts solar cell piece is that the back side has main grid IBC battery, back contacts
Solar cell piece is provided with just superfine grid line, the thin grid line of cathode, p-type doping region and n-type doping region, just superfine grid line and p
The contact of type doped region, the thin grid line of cathode are contacted with n-type doping region, and just superfine grid line is electrically connected with positive connection electrode, are born
Superfine grid line is electrically connected with cathode connection electrode, and positive connection electrode and cathode connection electrode are electrically connected with electric connector respectively,
Pass through positive connection electrode and cathode connection electrode derived current.The positive connection electrode of any back contacts solar cell on piece and
The sum of quantity of cathode connection electrode is 2-100 root, is electrically connected with any positive connection electrode or cathode connection electrode
The quantity of electric connector is 1-100.
With reference to Fig. 6, further, back contacts solar cell piece 31 is provided with first electrode 32 and second electrode 36, and first
Electrode 32 includes thin gate electrode 33, runs through pore electrod 34 and the first connection electrode 35, thin gate electrode 33 and the first connection electrode 35
It is electrically connected respectively with through pore electrod 34, second electrode 36 includes transmission electrode 37 and the second connection electrode 38, transmission electrode 37
It is electrically connected with the second connection electrode 38, the front of back contacts solar cell piece 31 is provided with thin gate electrode 33, back contacts sun electricity
The back side of pond piece 31 is provided with the first connection electrode 35, transmission electrode 37 and the second connection electrode 38, any back contacts sun
The sum of quantity of the first connection electrode 35 and the second connection electrode 38 on cell piece 31 is 100-10000.
In the embodiments of the present invention, when back contacts solar cell piece is MWT battery, back contacts solar cell piece
It is provided with first electrode and second electrode, first electrode includes thin gate electrode, through pore electrod and the first connection electrode, thin grid electricity
Pole and the first connection electrode are electrically connected with through pore electrod respectively, and second electrode includes transmission electrode and the second connection electrode, are passed
Transmission pole is electrically connected with the second connection electrode, and the front of back contacts solar cell piece is provided with thin gate electrode, back contacts sun electricity
The back side of pond piece is provided with the first connection electrode, transmission electrode and the second connection electrode, any back contacts solar cell on piece
The first connection electrode and the sum of the quantity of the second connection electrode be 100-10000.
Further, the first connection electrode 35 and the second connection electrode 38 are in that lattice-like is arranged in back contacts solar cell piece
31 back side.
Further, the diameter of the first connection electrode 35 is 0.3-10mm, and the diameter of the second connection electrode 38 is 0.3-
10mm。
Further, the first solar cell piece 200, solar cell piece group 310 are electrically connected by busbar or conducting wire.
In the embodiments of the present invention, the first solar cell piece, solar cell piece group can also by busbar or
The electrical connection of person's conducting wire, can reduce circuit to the area occupied of conductive metal foil, to reduce the area of conductive metal foil.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that utility model range involved in the application, however it is not limited to made of the specific combination of above-mentioned technical characteristic
Technical solution, at the same should also cover do not depart from the utility model design in the case where, by above-mentioned technical characteristic or its be equal
Feature carries out any combination and other technical solutions for being formed.Such as features described above and (but being not limited to) disclosed herein have
The technical solution for thering is the technical characteristic of similar functions to be replaced mutually and being formed.
Claims (10)
1. a kind of solar module, which is characterized in that including rectangular border, multiple series connection are arranged in sequence in the frame
The first solar cell piece, first solar cell piece by equal part regular hexagon back contacts solar cell piece obtain, also wrap
Multiple concatenated solar cell piece groups are included, the solar cell piece group is for filling up first solar cell piece and the frame
Between gap, the solar cell piece group connects with first solar cell piece, single first solar cell piece with
The light-receiving area of the single solar cell piece group is equal.
2. solar module according to claim 1, which is characterized in that the solar cell piece group includes at least two
Second solar cell piece, the second solar cell piece parallel connection in the solar cell piece group constitute the solar cell piece
Group, second solar cell piece are obtained by regular hexagon back contacts solar cell piece described in equal part.
3. solar module according to claim 2, which is characterized in that second solar cell piece is half
Regular hexagon back contacts solar cell piece described in regular hexagon back contacts solar cell piece, one third piece described in piece, four/
The a piece of regular hexagon back contacts solar cell piece, the six/a piece of regular hexagon back contacts solar cell piece, 12
Any one in/a piece of regular hexagon back contacts solar cell piece.
4. solar module according to claim 2, which is characterized in that first solar cell piece is along the side
Any side of frame is arranged successively, and is arranged between one end and the frame of first solar cell piece of same row
State solar cell piece group.
5. solar module according to claim 2, which is characterized in that adjacent second solar cell piece is in parallel
Constitute the solar cell piece group.
6. solar module according to claim 1, which is characterized in that adjacent first solar cell piece along
The longitudinal direction or broadside of the frame are sequentially connected in series.
7. solar module according to claim 1, which is characterized in that first solar cell piece is diamond shape, institute
The first solar cell piece is stated to obtain by regular hexagon back contacts solar cell piece described in trisection, alternatively,
First solar cell piece is right-angled trapezium, and first solar cell piece is connect by the back of regular hexagon described in the quartering
Solar cell piece is touched to obtain.
8. solar module according to claim 1, which is characterized in that first solar cell piece and the sun
Cell piece group constitutes battery lamella, and the back side of the battery lamella is fixedly connected with insulating layer, and the insulating layer is backwards to the electricity
The side of pond lamella is fixedly connected with several conductive metal foil circuits, between being provided between the adjacent conductive metal foil circuit
Gap, first solar cell piece and the solar cell piece group are electrically connected by the conductive metal foil circuit, the conduction
Metal-foil circuits are bonded with polymer backboard by adhesive layer backwards to the side of the battery lamella.
9. solar module according to claim 8, which is characterized in that the battery lamella is backwards to the insulating layer
Side is fixedly connected with preceding encapsulated layer, and the preceding encapsulated layer is fixedly connected with front shroud backwards to the side of the battery lamella.
10. solar module according to claim 8, which is characterized in that the insulating layer has been positioned apart from several
Opening, the electric connector pass through the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248467.6U CN209675306U (en) | 2019-02-27 | 2019-02-27 | Solar module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248467.6U CN209675306U (en) | 2019-02-27 | 2019-02-27 | Solar module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209675306U true CN209675306U (en) | 2019-11-22 |
Family
ID=68569897
Family Applications (1)
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| CN109904261A (en) * | 2019-02-27 | 2019-06-18 | 泰州隆基乐叶光伏科技有限公司 | Solar module |
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| CN109904261A (en) * | 2019-02-27 | 2019-06-18 | 泰州隆基乐叶光伏科技有限公司 | Solar module |
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