CN207602596U - A kind of two-sided monocrystalline lamination photovoltaic module - Google Patents
A kind of two-sided monocrystalline lamination photovoltaic module Download PDFInfo
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- CN207602596U CN207602596U CN201721818740.1U CN201721818740U CN207602596U CN 207602596 U CN207602596 U CN 207602596U CN 201721818740 U CN201721818740 U CN 201721818740U CN 207602596 U CN207602596 U CN 207602596U
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- battery
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- chamfering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a kind of two-sided monocrystalline lamination photovoltaic module, including the two-sided monocrystalline stack arrays being arranged between layer glass；Two-sided monocrystalline stack arrays are made of first area, second area and the third region being arranged side by side, at least a string are respectively placed in first area and third region, string is grown by the second battery that the first small pieces with chamfering are interconnected into, a string at least placed in second area, string is grown by the first battery being interconnected into without the second small pieces of chamfering；Often the string long string of anode of battery is in the same side, and cathode is in the same side；Often the welding of the string long string of head-tail of battery is respectively with a busbar connection composition parallel-connection structure.By the way that one piece of cell piece is cut into two kinds of small pieces battery, carry out being attached to form battery strings according to shape and specification, and then two kinds of different battery strings are encapsulated in same component, realize the unification of product appearance.
Description
Technical field
The utility model belongs to photovoltaic module technical field, and in particular to a kind of two-sided monocrystalline lamination photovoltaic module.
Background technology
Cell piece mutual contact mode in conventional crystal silicon photovoltaic module, common are and be ranked sequentially cell piece, with cupric
As interconnecting strip, interconnecting strip is welded in the front main grid line of first cell piece the tin-coated welding strip of base material, the interconnecting strip other end
It is welded on the back side grid line of second adjacent cell piece.The both ends of second interconnecting strip are respectively welded at second cell piece
Front main grid line and third piece cell piece back side grid line on, and so on.Thus all cell pieces are connected into a string.
The technology that stacked wafer moudle is interconnected using another cell piece.Another battery is placed on by the one of cell piece first
The lower section of piece second, i.e. lamination so that the positive main grid line electrode of first and the main grid line electrode at the second back side overlap.In two electricity
Physical connection is formed using materials such as conducting resinl, welding or tin creams and be conductively connected between pole.
Polycrystal silicon cell is usually square piece, and monocrystalline silicon battery is usually the square piece with chamfering.In addition to cell piece is direct
Outside lamination, after battery square piece is cut into small pieces, separated small pieces can also be folded using laser or the method for other scribings
Piece.Shape between polycrystalline battery small pieces is essentially identical, and single crystal battery is then divided into band chamfering small pieces and without chamfering small pieces.
Conventional single side lamination photovoltaic module uses the encapsulating structure of single side battery+single side light, and the photovoltaic module back side uses
Polymer backboard or glass are as encapsulating material.In practical applications due to have part sunlight by it is one or many reflection,
Component back surface is reached after scattering, therefore two-sided laminated batteries may be used, and all photovoltaic is carried out with transparent material in positive and negative
The encapsulation of component, will form can be with the photovoltaic module of double-side photic power generation.
Two-sided photovoltaic module cannot all have in the front and back for setting clocking requirement battery directly blocks (or covering), institute
Region other than cell piece to be placed in rear connection box, which adds the area of glass, so as to reduce component
Transformation efficiency.
By monocrystalline silicon double-side cell using laser or the method for other scribings, battery full wafer is cut into small pieces；Each small pieces
Width is equal；With chamfering small pieces battery length string will be connected as by lamination techniques；Several batteries length string is electrically connected again
Post package is connect as component；Without chamfering small pieces battery length string will be connected as by lamination techniques；Again by several batteries length go here and there into
Row electrical connection post package is component.
The shortcomings that prior art 1：As mentioned in background technology, two-sided photovoltaic module set clocking requirement battery front and
The back side, which cannot all have, directly blocks (or covering), so rear connection box will be placed in the region other than cell piece, thus
The area of glass is increased, so as to reduce the transformation efficiency of component.Shortcoming 2：The prior art will be with chamfering and without chamfering
Small pieces are encapsulated into respectively in different components, there is two types from product appearance in this way, a kind of is that the product with chamfering is another
A kind of is the product without chamfering；And there are the differences on power for two kinds of components；So in appearance with meeting on product power
Puzzlement is brought to client, two kinds of products are associations, if client only selects the product of one of which appearance, then will cause another
A kind of overstocked and waste of the product of outer appearance.
Utility model content
Of the existing technology to solve the problems, such as, the utility model provides a kind of two-sided monocrystalline lamination photovoltaic module, will
Battery small pieces with chamfering in same block assembly, have unified the two-sided stack of laminations of monocrystalline silicon with the battery dice packages without chamfering
The product appearance of part.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of two-sided monocrystalline lamination photovoltaic module, including the two-sided monocrystalline stack arrays being arranged between layer glass；It is double
Face monocrystalline stack arrays are made of first area, second area and the third region being arranged side by side, first area and third region
In respectively place at least a string the second batteries being interconnected by the first small pieces with chamfering and grow string, at least placed in second area
A string of the first battery length strings by being interconnected into without the second small pieces of chamfering；Often the string long string of anode of battery is in the same side,
Cathode is in the same side；Often the welding of the string long string of head-tail of battery is respectively with a busbar connection composition parallel-connection structure.
It is encapsulated between glass and battery length string by insulative potting material.
The first small pieces with chamfering and the second small pieces without chamfering are cut by the two-sided lamination cell piece of monocrystalline silicon；Often
The two-sided lamination cell piece of piece monocrystalline silicon is cut into N small pieces batteries：Including 2 the first small pieces with chamfering and N-2 pieces without chamfering
The second small pieces, N >=3.
The terminal box of photovoltaic module is located at the head-tail of second area.
Difference≤4mm of the long string of length of first battery and the long string length of the second battery.
The width of first small pieces is W1, and the width that the second small pieces are cut is W2, is met：W1≤W2.
Battery length string is made of the connection of at least one battery strings, and the small pieces number of batteries of battery strings is M, 2≤M≤50.
Welding is punching welding.
Relative to the prior art, the utility model has following technique effect：
The utility model by the small pieces with chamfering with without chamfering dice packages in same block assembly, with a lot of
In battery length string, battery small pieces only have a kind of shape and specification, i.e. only small pieces with chamfering or only in a string of battery strings
Without the small pieces of chamfering；Two kinds of different battery strings are encapsulated in same component, realize the unification of product appearance；Band chamfering battery
It is less than the battery strings formed without chamfering small pieces in the battery string length of small pieces composition；It is welded by using the different punching of length
Band so that the total length for having welded welding latter two battery strings is same or similar, and head-tail respectively uses a busbar
The connection between battery strings is completed, and is not in busbar bending；Each battery length string is by two string equal length specifications
Battery strings are formed by connecting by punching welding.
Further, terminal box is creatively mounted on by the short battery strings of length by the design of different battery string length
Position, reduces glass length, effectively saves component area, improves component efficiency.
After monocrystalline silicon battery is using laser or the method fragment of other scribings, with chamfering small pieces and without chamfering small pieces width
It is unequal；Further, band chamfering small pieces width is less than without chamfering small pieces；
Further, before welding punching welding, it is small that the battery string length with chamfering battery small pieces composition is less than band chamfering battery
The battery string length of piece composition；Further, after welding punching welding, the length of two kinds of battery strings is identical or length differs
≤4mm。
Description of the drawings
The manufacturing flow chart of the two-sided monocrystalline lamination photovoltaic modulies of Fig. 1；
Fig. 2 monocrystalline silicon battery cutting schematic diagrams；
Fig. 3 band chamfering battery strings schematic diagrames；
Fig. 4 are without chamfering battery strings schematic diagram；
Fig. 5 band chamfering battery strings length string schematic diagrames；
Fig. 6 grow string schematic diagram without chamfering battery strings；
Fig. 7 the first welding schematic diagrames；
Fig. 8 the second welding schematic diagrames；
Fig. 9 the utility model version type schematic diagrames；
It is marked in figure, the two-sided lamination cell piece of 1- monocrystalline silicon, the first small pieces of 2-, the second small pieces of 3-, the first battery strings of 4-, 5-
Second battery strings, 6- second punch welding, 7- first areas, 8- second areas, 9- thirds region, the punching weldings of 10- first.
Specific embodiment
With reference to specific embodiments and the drawings, the utility model is described in further detail：
As shown in Figure 1, a kind of manufacturing method of two-sided monocrystalline lamination photovoltaic module of the utility model, including following step
Suddenly：
The two-sided lamination cell piece 1 of every monocrystalline silicon is cut into N small pieces batteries by S1；
Small pieces battery head and the tail time the after cutting are overlapped to form battery strings by S2；
Battery strings are connected to form battery length string by S3 by the first welding；
The battery connected is grown string both ends and the second welding is respectively welded by S4；
S5, component package process；
S6 connects terminal box.
As Fig. 2-Fig. 9 is as follows：
As shown in Fig. 2, the two-sided lamination cell piece 1 of every monocrystalline silicon is cut into N small pieces, N is 3~8 integer.It is every in this way
The battery of piece full wafer can be cut into the 3 (rectangle of the second small pieces of 2 the first small pieces 2 with chamfering and (N-2) piece without chamfering
Piece)；The width after the cutting of the first small pieces 2 wherein with chamfering is W1, is without the width after the second small pieces 3 cutting of chamfering
W2；W1≤W2；
As shown in Figure 3 and Figure 4, by the small pieces battery head and the tail time overlapping after cutting, battery strings are connected into.Specific connection side
Formula is：Pass through first positive main grid line electrode of the materials such as conducting resinl, welding or tin cream and the main grid at second back side
Line electrode is connected with each other.Small pieces quantity in often going here and there is M, and M is positive integer, 2≤M≤50；In same battery strings, cell shapes and
Specification is identical, i.e., the small pieces with chamfering are interconnected into the first battery strings 4, such as Fig. 3；Is interconnected into without the small pieces of chamfering
Two battery strings 5；Meanwhile the small pieces quantity in two kinds of battery strings is identical；
As shown in Figure 5 and Figure 6, connect two string baby battery strings are connected to one piece by the first welding 10 (such as Fig. 8),
Specifically connection mode is：The front of one end of the first welding 10 and the first last a piece of battery of string is welded together, by the
The other end of one welding 10 and the back side of second first battery of string weld together, and then form battery length string.It is same
In battery length string, cell shapes are identical with specification；
The battery connected is grown into string both ends, punching welding is respectively welded；The string of small pieces composition wherein with chamfering, second
It is W3 to punch 6 width of welding；Without the string that the small pieces piece of chamfering forms, the first 10 width of punching welding is W4；W3 ＞ W4；Weldering
After taking eyelet welding band, the total length of two kinds of battery strings is identical or length difference is less than or equal to 4mm；
As shown in figure 9, the battery length string for welding punching welding is arranged on glass, glass and battery length string is intermediate is placed with
One layer of insulative potting material, the insulative potting material are ethylene-vinyl acetate copolymer ester (EVA) or polyolefin (POE)；Arrangement
When be divided into three regions；In first area 7 and third region 9, each two strings battery length placed side by side is gone here and there, cell piece in the battery strings
For the small pieces without chamfering；In second area 8, two string battery length strings are placed, cell piece is with the small of chamfering in battery length string
Piece；Often the string long string of anode of battery is in the same side, and cathode is in the same side；Entire six string battery is aligned using centre position, i.e., and six
The intermediate welding of string battery strings is on the same line；The head-tail welding of every string battery is respectively passed through into the company of welding with a busbar
It picks up and, six string battery strings composition parallel-connection structures.
After battery length string arrangement is good, glass is covered；One layer of insulative potting material is placed between glass and battery length string, this is absolutely
Edge encapsulating material is ethylene-vinyl acetate copolymer ester (EVA) or polyolefin (POE).
The utility model uses Split type connecting box, and terminal box is located at the head-tail of second area, such as Fig. 8；Due to second
The length of the battery in region 8 is smaller than first area 7 and third region 9, has thus saved space for terminal box.
As shown in figure 9, a kind of two-sided monocrystalline lamination photovoltaic module is made using the preparation method of the utility model, including setting
Put the two-sided monocrystalline stack arrays between layer glass；Two-sided monocrystalline stack arrays are by the first area 7, second that is arranged side by side
Region 8 and third region 9 form, and at least a string are respectively placed in first area 7 and third region 9 by the first small pieces 2 with chamfering
The the second battery length being interconnected into is gone here and there, and at least place a string in second area 8 is interconnected by the second small pieces 3 without chamfering
Into the first battery grow string；Often the string long string of anode of battery is in the same side, and cathode is in the same side；The often string long string of head-tail of battery
The second welding respectively with busbar connection composition parallel-connection structure；Insulative potting material is set between glass and battery length string.
Technical solutions of the utility model have the beneficial effect that：
1. small 2 with chamfering and the small pieces 3 without chamfering are encapsulated in same block assembly, the system of product appearance is realized
One；
2. it is less than the battery strings formed without chamfering small pieces in the battery string length with chamfering battery small pieces composition；By making
With punching welding of different size so that the total length for having welded welding latter two battery strings is same or similar, and head-tail respectively makes
The connection between battery strings can be completed with a busbar, and is not in busbar bending；
3. terminal box is creatively mounted on by the short battery strings position of length by the design of different battery string length,
Reduce glass length, effectively save component area, improve component efficiency.
The scope of protection of the utility model is not limited to the above embodiments, and those of ordinary skill in the art are come
It says, if the various changes and deformation to the utility model progress belong to the utility model claims and equivalent technologies range
It is interior, then including the intention of the utility model is also changed and is deformed comprising these.
Claims (8)
1. a kind of two-sided monocrystalline lamination photovoltaic module, which is characterized in that the two-sided monocrystalline including being arranged between layer glass is folded
Chip arrays；Two-sided monocrystalline stack arrays are made of first area (7), second area (8) and third region (9) being arranged side by side,
Second be interconnected by the first small pieces (2) with chamfering at least a string is respectively placed in first area (7) and third region (9)
Battery length is gone here and there, and a string of the first batteries by being interconnected into without the second small pieces (3) of chamfering are at least placed in second area (8)
Long string；Often the string long string of anode of battery is in the same side, and cathode is in the same side；Often the welding of the string long string of head-tail of battery is respectively with one
Root busbar connection composition parallel-connection structure.
2. a kind of two-sided monocrystalline lamination photovoltaic module according to claim 1, which is characterized in that glass and battery length string
Between encapsulated by insulative potting material.
A kind of 3. two-sided monocrystalline lamination photovoltaic module according to claim 1, which is characterized in that the first small pieces with chamfering
(2) and without the second small pieces (3) of chamfering it is cut by the two-sided lamination cell piece (1) of monocrystalline silicon；Every monocrystalline silicon Double-side laminated
Piece cell piece (1) is cut into N small pieces batteries：Including 2 the first small pieces (2) with chamfering and N-2 pieces without the second small of chamfering
Piece (3), N >=3.
A kind of 4. two-sided monocrystalline lamination photovoltaic module according to claim 1, which is characterized in that the terminal box of photovoltaic module
Head-tail positioned at second area (8).
A kind of 5. two-sided monocrystalline lamination photovoltaic module according to claim 1, which is characterized in that the long string of length of the first battery
Degree and difference≤4mm of the long string length of the second battery.
A kind of 6. two-sided monocrystalline lamination photovoltaic module according to claim 1, which is characterized in that the width of the first small pieces (2)
It spends for W1, the width that the second small pieces (3) are cut is W2, is met：W1≤W2.
7. a kind of two-sided monocrystalline lamination photovoltaic module according to claim 1, which is characterized in that battery length string is by least one
A battery strings connection composition, the small pieces number of batteries of battery strings are M, 2≤M≤50.
8. a kind of two-sided monocrystalline lamination photovoltaic module according to claim 1, which is characterized in that welding is punching weldering
Band.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721818740.1U CN207602596U (en) | 2017-12-22 | 2017-12-22 | A kind of two-sided monocrystalline lamination photovoltaic module |
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| CN109449229A (en) * | 2018-12-20 | 2019-03-08 | 苏州腾晖光伏技术有限公司 | A kind of imbrication photovoltaic module |
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| CN111276570A (en) * | 2020-02-17 | 2020-06-12 | 浙江爱旭太阳能科技有限公司 | Manufacturing method of chamfer-free battery strip, laminated battery string and laminated assembly |
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| CN109119498A (en) * | 2018-09-12 | 2019-01-01 | 江苏爱康能源研究院有限公司 | The solar cell module and preparation method thereof of unified appearance and high reliability |
| CN109119498B (en) * | 2018-09-12 | 2024-01-30 | 江苏爱康能源研究院有限公司 | Solar cell module with uniform appearance and high reliability and preparation method thereof |
| CN109449229A (en) * | 2018-12-20 | 2019-03-08 | 苏州腾晖光伏技术有限公司 | A kind of imbrication photovoltaic module |
| CN109449229B (en) * | 2018-12-20 | 2023-12-15 | 苏州腾晖光伏技术有限公司 | Shingled photovoltaic module |
| CN109473509A (en) * | 2018-12-25 | 2019-03-15 | 无锡先导智能装备股份有限公司 | The putting device and its method of glue cauda are not printed |
| CN109698253A (en) * | 2018-12-25 | 2019-04-30 | 无锡先导智能装备股份有限公司 | Putting device and its method |
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| CN109698253B (en) * | 2018-12-25 | 2023-12-08 | 无锡先导智能装备股份有限公司 | Film placing device and method thereof |
| CN111276570A (en) * | 2020-02-17 | 2020-06-12 | 浙江爱旭太阳能科技有限公司 | Manufacturing method of chamfer-free battery strip, laminated battery string and laminated assembly |
| CN113659024A (en) * | 2021-07-21 | 2021-11-16 | 晶澳（扬州）太阳能科技有限公司 | Electric connection structure, photovoltaic module and preparation method thereof |
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