CN208674137U - A kind of solar battery sheet - Google Patents
A kind of solar battery sheet Download PDFInfo
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- CN208674137U CN208674137U CN201821504167.1U CN201821504167U CN208674137U CN 208674137 U CN208674137 U CN 208674137U CN 201821504167 U CN201821504167 U CN 201821504167U CN 208674137 U CN208674137 U CN 208674137U
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- main gate
- gate line
- solar battery
- battery sheet
- cropped area
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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
- Y02E10/547—Monocrystalline silicon PV cells
Abstract
The utility model discloses a kind of solar battery sheet, can equal part slice be multiple battery blade units, and reduce fragment rate.A kind of solar battery sheet, including silicon wafer, front electrode and rear electrode, front electrode includes the multiple positive electrode main gate lines being parallel to each other for being set to front side of silicon wafer, each positive electrode main gate line is made of the multiple main grid line segments mutually disconnected, the quantity of the main grid line segment of multiple positive electrode main gate lines is identical and is aligned setting respectively, there is gap between two main grid line segments of arbitrary neighborhood of each positive electrode main gate line, solar battery sheet has for for cutting the cropped area solar battery sheet to be sliced, cropped area passes through the corresponding gap of each positive electrode main gate line, battery blade unit is respectively formed between two neighboring cropped area and/or between solar battery sheet outer rim and adjacent cropped area, main grid line segment on two battery blade units of arbitrary neighborhood is symmetrical arranged by symmetry axis of cropped area between the two.
Description
Technical field
The utility model belongs to area of solar cell, and in particular to a kind of solar battery sheet.
Background technique
P-type double-side cell piece due to its preparation process is simple, characteristic low in cost and having generating electricity on two sides and it is extensive
Concern, and a point slice is carried out etc. to p-type double-sided solar battery, it is such as second-class to be divided into half cell piece, the combination of p-type double-side cell
Half design, can further promote properties of product on the basis of double-side cell, and the correspondence component power output after processing can be promoted
5W or so, it is even higher.Therefore designing and developing the two-sided half crystal-silicon solar cell of p-type will be future trend.
P-type double-side cell piece at present, after being cut into half according to half demand, the surface electrode main gate line of half battery is not
Symmetrical structure.Such as front electrode, after being cut to half, main gate line one end and the other end are different, and one end main grid does not rise at cut mark
Weldering distance design, when series welding, is easy to produce fragmentation, and appearance is not beautiful enough.
Utility model content
In view of the above technical problems, the utility model is intended to provide a kind of solar battery sheet, can equal part slice be more
A battery blade unit, and reduce fragment rate.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:
A kind of solar battery sheet, including silicon wafer, front electrode and rear electrode, the silicon wafer have front and back
Face, the front electrode include the multiple positive electrode main gate lines being parallel to each other for being set to the front side of silicon wafer, it is each it is described just
Electrode main grid line is made of the multiple main grid line segments mutually disconnected, the quantity phase of the main grid line segment of multiple positive electrode main gate lines
It is aligned setting together and respectively, there is gap between two main grid line segments of arbitrary neighborhood of each positive electrode main gate line, it is described
Solar battery sheet has for for cutting the cropped area the solar battery sheet to be sliced, the cropped area to be passed through
The corresponding gap of each positive electrode main gate line, between two neighboring cropped area and/or solar battery sheet outer rim
Battery blade unit is respectively formed between adjacent cropped area, the main grid line segment on two battery blade units of arbitrary neighborhood with
Cropped area between the two is symmetrical arranged for symmetry axis.
In one embodiment, each battery blade unit has the central axis being parallel to each other with cropped area, described
Main grid line segment on battery blade unit is symmetrical arranged by symmetry axis of the central axis.
In one embodiment, each gap equal part that the cropped area is passed through it.
In one embodiment, the master is distributed in each battery blade unit in each main gate line respectively
Grid line section.
In one embodiment, the central axis of the main gate line is in the cropped area, each main gate line it is more
Center line arranged at equal intervals of a main grid line segment along the main gate line.
In one embodiment, the front electrode further includes the multiple positive electricity being parallel to each other for being set to the front side of silicon wafer
Superfine grid line, the positive-electrode fine grid line are parallel to the cropped area, and the cropped area is located at the two neighboring positive electricity
Between superfine grid line.
In one embodiment, the rear electrode includes the multiple back electrodes being parallel to each other for being set to the silicon chip back side
Main gate line, the cropped area sequentially pass through each back electrode main gate line, the back electricity on two battery blade units of arbitrary neighborhood
Pole main gate line is symmetrical arranged by symmetry axis of cropped area between the two.
Preferably, the central axis of the back electrode main gate line is on the cropped area, each battery blade unit
Back electrode main gate line is arranged by symmetry axis mirror symmetry of the central axis of battery blade unit respectively.
The preferably described positive electrode main gate line is identical with the quantity of the back electrode main gate line and position corresponds.
In one embodiment, the quantity of the positive electrode main gate line is 5 ~ 20.
The utility model uses above scheme, has the advantages that compared with prior art
Symmetric design is used by the front electrode to solar battery sheet, it is asymmetric to solve main gate line after cell piece cuts half
The problem of, fragment rate is high when solving the problems, such as aesthetics and being used in the production of half component, and when the solar battery sheet is not cut
It is equally applicable when being partly applied to common component production, do not influence properties of product and aesthetics.
Detailed description of the invention
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the schematic diagram according to a kind of front electrode of solar battery sheet of the utility model；
Fig. 2 is the schematic diagram according to a kind of rear electrode of solar battery sheet of the utility model.
Wherein, 1, front electrode；11, positive electrode main gate line；110, main grid line segment；111, gap；12, thin grid line；2, it carries on the back
Face electrode；21, back electrode main gate line；22, the thin grid line of back electrode；3, cropped area；4, battery blade unit；40, central axis.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be understood by the person skilled in the art with feature.It should be noted that for the explanation of these embodiments
It is used to help understand the utility model, but does not constitute the restriction to the utility model.In addition, sheet disclosed below is practical new
Involved technical characteristic can be combined with each other as long as they do not conflict with each other in each embodiment of type.
Referring to Figures 1 and 2, the present embodiment provides a kind of p-type double-sided solar battery pieces according to the present utility model, including
Silicon wafer, front electrode 1 and rear electrode 2.Silicon wafer has positioned at the front of light side and the back side of backlight side, front electrode
1 is formed on the front of silicon wafer, and rear electrode 2 is formed on the back side of silicon wafer.
Referring to Fig.1, front electrode 1 includes the multiple positive electrode main gate lines 11 being parallel to each other for being set to front side of silicon wafer, just
11 sectional design of electrode main grid line, discontinuously.Each positive electrode main gate line 11 is by mutually disconnect 110 groups of multiple main grid line segments
At, each positive electrode main gate line 11 multiple main grid line segments 110 along positive electrode main gate line 11 center line arranged at equal intervals, it is multiple
The quantity of the main grid line segment 110 of positive electrode main gate line 11 it is identical and respectively alignment setting, each positive electrode main gate line 11 it is any
There is gap 111 between two neighboring main grid line segment 110.By taking front electrode 1 shown in FIG. 1 as an example, it is set side by side including 5
The positive electrode main gate line 11 vertically extended, each positive electrode main gate line 11 is by upper and lower spaced two main grid line segments
110 form, and have gap 111 between two main grid line segments 110, to two main grid line segments 110 are spaced apart, wherein being located at upper
Five main grid line segments 110 in portion align setting, and five main grid line segments 110 positioned at lower part align setting.
The solar battery sheet is divided into multiple battery blade units 4, after solar battery sheet is cut, each battery
Blade unit 4 is used as an independent slice cell piece.There is cropped area, the cropped area between adjacent cell blade unit 4
It, can will too after the cropped area is cut for being the linear region for extending to right end from solar cell piece left end for cutting
Multiple battery blade units 4 segmentation of positive energy cell piece, each battery blade unit 4 after segmentation respectively become an independent scribing
Cell piece.That is, battery blade unit 4 is formed between two neighboring cropped area 3, or it is formed in solar battery sheet side
Between edge and adjacent cropped area 3.A main grid is distributed in each positive electrode main gate line 11 respectively in each battery blade unit 4
Line segment 110.For as shown in Figure 1, solar battery sheet is divided into two battery blade units 4, deposits between two battery blade units 4
In a cropped area, which sequentially passes through the upside main grid line segment 110 and downside main grid of 5 positive electrode main gate lines 11
Gap 111 between line segment 110 simultaneously each gap 111 is halved.Each gap 111 be used for for main gate line section 110 reserve weld away from
From after solar battery sheet is cut, the main grid line segment 110 of battery blade unit 4 has a distance (as to rise apart from its outer rim
Weld distance), fragmentation can be effectively avoided in series welding, and appearance is more beautiful.
Cropped area 3 and the center line of positive electrode main gate line 11 are mutually perpendicular to, a left side for the former solar battery sheet along Fig. 1
Right direction extends, and the latter vertically extends.Cropped area 3 halves each gap 111 passed through described in it, so that two neighboring
Main grid line segment 110 on cell piece is with cropped area 3 between the two for the symmetrical setting of symmetry axis mirror.In addition, each battery
Blade unit 4 has the central axis 4 being parallel to each other with cropped area 3, and the main grid line segment 110 on each battery blade unit 4 is distinguished
It is the setting of symmetry axis mirror symmetry with center axis thereof 4.It should also be noted that, the central axis 4 of cropped area 3, cell piece
It is narration for convenience and defines, the not practical component part of front electrode 1.
Front electrode 1 further includes the multiple positive-electrode fine grid lines 12 being parallel to each other for being set to front side of silicon wafer, positive-electrode fine
Grid line 12 is parallel to cropped area 3, and cropped area is between two neighboring positive-electrode fine grid line 12.
Referring to Fig. 2, rear electrode 2 includes being set to multiple back electrode main gate lines 21 being parallel to each other of silicon chip back side, is cut out
It cuts region 3 and sequentially passes through each back electrode main gate line 21.The center line and cropped area 3 of back electrode main gate line 21 are mutually perpendicular to, preceding
Up and down direction of the person in Fig. 2 extends, and left and right directions of the latter in Fig. 2 extends.Rear electrode 2 further includes being set to silicon wafer back
Multiple thin grid lines 22 of back electrode being parallel to each other in face, left and right directions of the thin grid line 22 of back electrode in Fig. 2 extend and are parallel to
Cropped area 3.Back electrode main gate line 21 on two battery blade units 4 of arbitrary neighborhood is pair with cropped area 3 between the two
Claim axial symmetry setting, the back electrode main gate line 21 on each battery blade unit 4 is respectively with center axis thereof 4 for symmetry axis mirror image pair
Claim setting.It is further preferable that the front of two battery blade units 4 of arbitrary neighborhood, the back side are with cropped area 3 between the two
The setting of symmetry axis mirror symmetry.
In the solar battery sheet, positive electrode main gate line 11 is identical with the quantity of back electrode main gate line 21 and position one is a pair of
It answers.The quantity of positive electrode main gate line 11 is 5 ~ 20, and the quantity of back electrode main gate line 21 is 5 ~ 20.
The solar battery sheet that this reality utility model provides can be formed more by laser equipment after cropped area cutting
A scribing cell piece (such as second-class to be divided into two half cell pieces).The utility model passes through to p-type double-sided solar battery piece
Special symmetric design is respectively adopted in front electrode 1 and rear electrode 2, and main gate line is asymmetric after solution cell piece cuts half asks
Topic；Fragment rate high problem when can be effectively improved solar battery sheet applied to half component, and improve the aesthetics beauty of product
The property seen；After 2 main gate line of rear electrode of the utility model design cuts half, 2 main gate line of rear electrode of half battery is still ensured that
Both ends solder joint is consistent, is conducive to matching component series welding processing procedure, can weld from any one section；When the solar battery sheet is not cut
Piece and directly apply to common component production when, it is equally applicable, do not influence properties of product and aesthetics.
Main grid opposing cutout regions 3 are symmetrical when the utility model front electrode 1 and rear electrode 2 are all made of full sheet, half
When relatively each battery blade unit 4 of main gate line central axis 4 it is symmetrical.After half is cut along center line, front electrode 1 and rear electrode 2,
In component string welder sequence in use, being welded from any one end of main gate line, welding effect is consistent, and welding effect will not be by main gate line
Both ends differentia influence.The solar battery is applicable to double-side assembly production, is equally applicable to two-sided half component production, without
The properties of product are influenced, in conjunction with two-sided half component, power is more preferably.
The above embodiments are only for explaining the technical ideas and features of the present invention, is a kind of preferred embodiment, mesh
Be that person skilled in the art can understand the content of the utility model and implement accordingly, this reality can not be limited with this
With novel protection scope.Equivalent transformation or modification made by all principles according to the present utility model should all be covered practical at this
Within novel protection scope.
Claims (10)
1. a kind of solar battery sheet, including silicon wafer, front electrode and rear electrode, the silicon wafer has front and back,
The front electrode includes the multiple positive electrode main gate lines being parallel to each other for being set to the front side of silicon wafer, it is characterised in that: every
A positive electrode main gate line is made of the multiple main grid line segments mutually disconnected, the main grid line segment of multiple positive electrode main gate lines
Quantity is identical and alignment setting respectively, between having between two main grid line segments of arbitrary neighborhood of each positive electrode main gate line
Gap, the solar battery sheet has for supplying to cut the cropped area the solar battery sheet to be sliced, described to cut
Region passes through the corresponding gap of each positive electrode main gate line, between two neighboring cropped area and/or solar-electricity
Battery blade unit, the master on two battery blade units of arbitrary neighborhood are respectively formed between pond piece outer rim and adjacent cropped area
Grid line section is symmetrical arranged by symmetry axis of cropped area between the two.
2. solar battery sheet according to claim 1, it is characterised in that: each battery blade unit has and cuts
The central axis that region is parallel to each other, main grid line segment on the battery blade unit are that symmetrical axial symmetry is set with the central axis
It sets.
3. solar battery sheet according to claim 1, it is characterised in that: the cropped area passed through it each
Gap equal part.
4. solar battery sheet according to claim 1, it is characterised in that: each main gate line is in each battery
The main grid line segment is distributed in blade unit respectively.
5. solar battery sheet according to claim 1, it is characterised in that: the central axis of the main gate line is in described
Cropped area, the center line arranged at equal intervals of multiple main grid line segments of each main gate line along the main gate line.
6. solar battery sheet according to claim 1, it is characterised in that: the front electrode further include be set to it is described
Multiple positive-electrode fine grid lines being parallel to each other of front side of silicon wafer, the positive-electrode fine grid line is parallel to the cropped area, described
Cropped area is between the two neighboring positive-electrode fine grid line.
7. solar battery sheet according to claim 1, it is characterised in that: the rear electrode includes being set to the silicon
Multiple back electrode main gate lines being parallel to each other at the piece back side, the cropped area sequentially pass through each back electrode main gate line, appoint
The back electrode main gate line anticipated on two neighboring battery blade unit is symmetrical arranged by symmetry axis of cropped area between the two.
8. solar battery sheet according to claim 7, it is characterised in that: the central axis of the back electrode main gate line
In the back electrode main gate line on the cropped area, each battery blade unit be respectively symmetrical with the central axis of battery blade unit
The setting of axis mirror symmetry.
9. solar battery sheet according to claim 7, it is characterised in that: the positive electrode main gate line and the back electrode
The quantity of main gate line is identical and position corresponds.
10. solar battery sheet according to claim 1, it is characterised in that: the quantity of the positive electrode main gate line be 5 ~
20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821504167.1U CN208674137U (en) | 2018-09-14 | 2018-09-14 | A kind of solar battery sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821504167.1U CN208674137U (en) | 2018-09-14 | 2018-09-14 | A kind of solar battery sheet |
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| Publication Number | Publication Date |
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| CN208674137U true CN208674137U (en) | 2019-03-29 |
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| CN201821504167.1U Active CN208674137U (en) | 2018-09-14 | 2018-09-14 | A kind of solar battery sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192795A (en) * | 2018-09-14 | 2019-01-11 | 苏州腾晖光伏技术有限公司 | A kind of solar battery sheet |
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- 2018-09-14 CN CN201821504167.1U patent/CN208674137U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192795A (en) * | 2018-09-14 | 2019-01-11 | 苏州腾晖光伏技术有限公司 | A kind of solar battery sheet |
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