CN206003789U - Solar module - Google Patents

Solar module Download PDF

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Publication number
CN206003789U
CN206003789U CN201621038876.6U CN201621038876U CN206003789U CN 206003789 U CN206003789 U CN 206003789U CN 201621038876 U CN201621038876 U CN 201621038876U CN 206003789 U CN206003789 U CN 206003789U
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CN
China
Prior art keywords
battery
pieces
sub
elongate slot
solar module
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Active
Application number
CN201621038876.6U
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Chinese (zh)
Inventor
潘秀娟
董经兵
夏正月
许涛
邢国强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canadian Solar Inc
Canadian Solar Manufacturing Changshu Inc
Original Assignee
Canadian Solar Manufacturing Changshu Inc
Canadian Solar China Investment Co Ltd
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Priority to CN201621038876.6U priority Critical patent/CN206003789U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Photovoltaic Devices (AREA)

Abstract

The utility model embodiment discloses a kind of solar module, busbar including backboard, some battery tandems being located on backboard and electric connection battery tandem, battery tandem all includes some battery blade units being serially connected, battery blade unit is included by connected two sub-pieces of interconnecting strip and the elongate slot between two sub-pieces, the bearing of trend of the elongate slot is inclined with the bearing of trend of the interconnecting strip and is intersected, and all elongate slot in same battery tandem have identical bearing of trend.The sub-pieces less due to employing area, so that current value reduces in battery tandem, the general power of battery tandem so as to reduce the energy consumption of the interconnecting strip for connecting each sub-pieces in solar module, is reduced by sub-pieces, reduces the probability that hot spot effect occurs in solar module.

Description

Solar module
Technical field
The utility model is related to solar energy generation technology field, more particularly to a kind of solar module.
Background technology
With the fast development of solar energy generation technology, apply the application of the solar module of this technology gradually wide General, the power output of especially solar module is also increasing.
Existing solar module generally comprises backboard and some battery tandems on backboard, these batteries Tandem is together in parallel by busbar, and each battery tandem includes some cell pieces, passes through such as welding between these cell pieces again Interconnecting strip be together in series.
However, existing solar module typically all enters from battery-end and assembly end for improving its power output Hand is optimized, and optimizing mainly for battery-end improves operating current and the voltage of cell piece using battery new technology, and component End optimizes then mainly using optics and electroporation, for example, using high transparent glass, EVA, low resistance welding etc., in practice, While improving component power output, how to reduce resistance loss in component, and a highly important research topic, example Such as, the lifting of cell piece operating current and voltage, can increase the loss in welding interconnecting strip, and cell piece electric current, voltage Raising also easily produce hot spot risk.
Utility model content
The purpose of the utility model embodiment is to provide a kind of solar module, for improving solar module Output, improve component CTM value.
For solving above-mentioned technical problem, the utility model embodiment provides a kind of solar module, including backboard, position Some battery tandems on the backboard and the busbar of the battery tandem is electrically connected with, the battery tandem all includes Some battery blade units being serially connected, the battery blade unit include by connected two sub-pieces of interconnecting strip and are located at two Elongate slot between sub-pieces, the bearing of trend of the elongate slot are inclined with the bearing of trend of the interconnecting strip and are intersected, and All elongate slot in same battery tandem have identical bearing of trend.
Preferably, the sub-pieces have parallel to interconnecting strip bearing of trend long while and minor face and connection minor face and long while Bevelled edge, and the bevelled edge of two sub-pieces in the battery blade unit is in opposing parallel setting, and the elongate slot formed Between two bevelled edges;The interconnecting strip connects sensitive surface and another sub-pieces of a sub-pieces respectively through the elongate slot Shady face.
Preferably, two all trapezoidal and area equation of sub-pieces in the battery blade unit, two sub-pieces be by one Square solar battery sheet cuts along the bevelled edge position and obtains, and the sensitive surface of the sub-pieces is provided with least three length The main gate line not waited.
Preferably, the gap width in the width of the elongate slot and battery tandem between two neighboring battery blade unit Equal.
Preferably, the length difference of the long side and the minor face is equal to or more than the twice of the elongate slot width.
Preferably, the quantity of some battery tandems is more than or equal to 2, and the two ends per two neighboring battery tandem pass through Busbar is connected in parallel to form a battery strings group, the bearing of trend all same of all elongate slot in the battery strings group.
Preferably, the solar module is with least two battery strings groups being serially connected, and two neighboring electricity The bearing of trend of the elongate slot in the string group of pond is different.
Preferably, the angle between the bearing of trend of the elongate slot and the interconnecting strip is more than 45 degree and less than 90 Degree.
Preferably, the angle spends scope 60 to 90.
Preferably, the width of the elongate slot is in the range of 0.5 to 5 millimeter.
Preferably, the width of the elongate slot be in the range of 1 to 3 millimeter.
Preferably, in the adjacent battery tandem, each elongate slot be arranged in parallel.
Preferably, in the adjacent battery tandem, each elongate slot is crisscross arranged.
Preferably, the backboard includes the sensitive surface for supporting the battery tandem, and the sensitive surface scribbles reflective painting Layer.
The technical scheme provided from above the utility model embodiment, the sun provided by the utility model embodiment Energy component, obtains the less sub-pieces of area by cutting cell piece so that current value reduces in battery tandem, so as to reduce the sun In energy battery component, the energy consumption of the interconnecting strip of each sub-pieces of connection, improves the CTM value of solar components, also reduces hot spot wind Danger.
Description of the drawings
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments described in the utility model, for those of ordinary skill in the art, is not paying creative work Property on the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of solar module in the utility model first embodiment;
Fig. 2 is the enlarged drawing of a-quadrant in the solar module shown in Fig. 1;
Fig. 3 is the schematic diagram of solar module in the utility model second embodiment;
Fig. 4 is the schematic diagram of solar module in the utility model 3rd embodiment;
Fig. 5 is the schematic diagram of solar module in the utility model fourth embodiment.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the utility model, below in conjunction with this reality With the accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that Described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.Based on the utility model In embodiment, the every other enforcement obtained under the premise of creative work is not made by those of ordinary skill in the art Example, should all belong to the scope of the utility model protection.
Shown in ginseng Fig. 1, in the utility model first embodiment, solar module 100 include backboard 10, some mutually The parallel and battery tandem (S1~S4) that extends straight and busbar 20.
The size of backboard 10 is configured according to the quantity of the battery tandem of required carrying, and backboard 10 is included for carrying electricity The sensitive surface 11 of pond tandem, it is anti-with the sunshine that will be projected on sensitive surface 11 to scribble reflectance coating (not shown) on sensitive surface 11 It is emitted back towards.
In first embodiment of the present utility model, the quantity of battery tandem is set greater than equal to 2, and preferably even number Individual tandem, in the present embodiment, quantity is set to 4, and these battery tandems are arranged into array, and certainly, the quantity of battery tandem is permissible Preset according to power generation needs, will not be described here.
Adjacent battery tandem is electrically connected with by the busbar 20 prepared by conductive material, specifically, many by arranging Bar busbar 20, realize by the connection of the two ends of battery tandem S1 and S2 with and be unified into a battery strings group, by battery tandem S3 and S4 Two ends connection with and be unified into after another battery strings group, then two battery strings groups are together in series.
Each battery tandem all includes some battery blade units 30 arranged in a straight line, and the shape of battery blade unit 30 is in substantially Square, main gate line 40 is provided with battery blade unit 30, the quantity of main gate line 40 can be arranged to multiple, the extension of main gate line 40 Direction is identical with the arragement direction of place battery tandem.Main gate line 40 is used for connecting the interconnecting strip 50 of such as welding or conducting resinl, Each battery blade unit in battery tandem is together in series by interconnecting strip 50.In the utility model embodiment, battery blade unit On 40, main gate line 40 can be arranged at least three, transmit demand to meet electric current.
In first embodiment of the present utility model, each battery blade unit 30 all includes the first sub-pieces 31 and the second sub-pieces 32, it is together in series still through interconnecting strip 50 between the first sub-pieces 31 and the second sub-pieces 31, and the first sub-pieces 31 and the second sub-pieces Elongate slot 33 is provided between 31.In actual applications, interconnecting strip 50 connects the first sub-pieces 31 respectively through elongate slot 33 Sensitive surface and 32 shady face of the second sub-pieces, and the bearing of trend of interconnecting strip 50 is substantially parallel with main gate line 40 or conllinear.
In first embodiment of the present utility model, battery blade unit 30 is substantially square, the first sub-pieces 31 and second The shape of sub-pieces 32 is essentially identical, all substantially trapezoidal.The concrete shape of each sub-pieces, below by taking the first sub-pieces 31 as an example, is described in detail in detail.
Wherein, the first sub-pieces 31 include parallel with 50 bearing of trend of interconnecting strip long while 311 and minor face 312, connect long while 311 and bevelled edge 313 and the trailing edge 314 relative with 313 position of bevelled edge of minor face 312, elongate slot 33 is located at the first son Between the bevelled edge 313 of piece 31 and the second sub-pieces 32.
Preferably, parallel to each other by the bevelled edge 313 of the first sub-pieces 31 and the second sub-pieces 32 to be arranged to, can cause Elongate slot 33 is in the straight shape of length.By setting the bearing of trend of the bevelled edge 313 of the first sub-pieces 31 and the second sub-pieces 32 so that narrow The bearing of trend of long gap 33 and the interconnecting strip 50 of the first sub-pieces 31 for being connected 33 both sides of elongate slot and the second sub-pieces 32 Bearing of trend inclines intersecting.
In actual applications, can be battery blade unit 30 to be made along cut-off rule D1 is preset using the industry routine such as laser mode Cutting, to obtain the bevelled edge 313, and the bearing of trend of the elongate slot 33 is the extension side for presetting cut-off rule D1 To, and the bearing of trend of the bevelled edge 313 of the first sub-pieces 31 and the second sub-pieces 32.
Preferably, all elongate slot 33 in same battery tandem are belonged to identical bearing of trend.On the one hand The regularity of 100 inner sub-strips of solar module is improve, on the other hand due to, in series welding technique, needing first by single battery piece It is welded into tandem successively, is then connected with other tandems again, therefore, with elongate slot in a tandem towards identical in the present embodiment Set-up mode, welding procedure can be greatly simplified, the placing direction of each battery unit sub-pieces keeps identical.
Certainly, in other embodiments, in two adjacent battery tandems in a battery strings group, its default cut-off rule D1 (or elongate slot) also can be arranged in parallel in the same direction, in addition, preset cut-off rule in whole solar module 100 On the one hand D also can improve solar module 100 towards identical (the bearing of trend all same of i.e. all of elongate slot 33) The regularity of inner sub-strips, is allowed to conventional battery component appearance difference less, on the other hand also causes series welding process more square Just, operate for series welding device easier.
In conjunction with shown in Fig. 2, in first embodiment of the present utility model, bevelled edge 313 and interconnecting strip 50 or main gate line 40 Angle α more than 45 degree and less than 90 degree.Preferably, angle α is 60-90 degree, and specifically, the angle α is chosen as 80- 90 degree.
In first embodiment of the present utility model, vertical width L1 of elongate slot 33 is in the range of 0.5 to 5 millimeter. Preferably, width L1 is in the range of 1 to 3 millimeter, for example, can adopt 2 millimeters.Preferably, the length of long side 311 and minor face 312 Twice of the difference not less than the width L1 of elongate slot 33, for example, can cause the length difference to be equal to or more than the width of elongate slot 33 The twice of degree L1.
In first embodiment of the present utility model, belong to the battery blade unit 30 of same battery tandem with spacing L2, The width L1 of elongate slot 33 is equal with aforementioned intervals L2.
To sum up, due to presetting cut-off rule D1 with respect to interconnecting strip 50 or 40 out of plumb of main gate line, do not cut with respect to conventional For cutting solar battery sheet, as the area of the first sub-pieces 31 for obtaining after cutting and the second sub-pieces 32 is less, and solar energy Cell piece is by the current value produced by photovoltaic effect as the light-receiving area of solar battery sheet is directly proportional, it is therefore provided that battery strings In row, current value is less, so as to reduce the energy consumption of the interconnecting strip 50 prepared by conductive material, improves the CTM of solar components Value, reduces the general power of battery tandem, the probability for occurring hot spot effect so as to reduce solar module by sub-pieces.
For existing conventional uncut rectangular cell piece, or, with respect to perpendicular to main grid wire cutting For terrace cut slice mode (i.e. two sub-pieces are rectangular), have between the first sub-pieces 31 of the present utility model and the second sub-pieces 32 and incline Oblique elongate slot so that the white space area between two sub-pieces is bigger, and sunshine arrives at backboard 10 through this region Sensitive surface 11, then the first sub-pieces 31 or the second sub-pieces 32 are reflexed to by reflecting coating on sensitive surface 11, by the first sub-pieces 31 or Second sub-pieces 32 absorbs this some light again, it is possible to increase light utilization.
Shown in ginseng Fig. 3, the solar module 100b provided by the utility model second embodiment, in previous embodiment Solar module 100a is compared, and is differed only in:
Default cut-off rule D2 is different from the direction of default cut-off rule D1, specifically, presets cut-off rule D2 and default segmentation Line D1 is symmetrical set with respect to interconnecting strip 50 or main gate line 40, i.e., the direction of all elongate slot 33 with respect to interconnecting strip 50 or Main gate line 40 is symmetrical set.
Shown in ginseng Fig. 4, the solar module 100c provided by the utility model 3rd embodiment, in previous embodiment Solar module 100a, 100b are compared, and are differed only in:
The direction for presetting cut-off rule D3 in adjacent battery tandem S1, S2 is identical, presets in adjacent battery tandem S3, S4 The direction of cut-off rule D3 is identical;And the direction of default cut-off rule D3 is different in adjacent battery tandem S2, S3, specifically, in advance If it is in be crisscross arranged to preset cut-off rule D3 in adjacent battery tandem S2, S3 with respect to interconnecting strip 50 or main gate line 40.That is, adjacent In two battery strings groups, the bearing of trend of elongate slot 33 is different.
Shown in ginseng Fig. 5, the solar module 100d provided by the utility model fourth embodiment, in previous embodiment Solar module 100a, 100b, 100c are compared, and are differed only in:
The direction for presetting cut-off rule D4 in the adjacent battery tandem of any two is all differed, pre- in adjacent battery tandem If cut-off rule D4 is crisscross arranged.Meanwhile, in two battery strings groups, the bearing of trend of elongate slot 33 is different.
Each embodiment in this specification is all described by the way of going forward one by one, identical similar portion between each embodiment Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for system reality For applying example, as which is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method Part explanation.
Embodiment of the present utility model is the foregoing is only, is not limited to the utility model.For this area For technical staff, the utility model can have various modifications and variations.All institutes within spirit of the present utility model and principle Any modification, equivalent substitution and improvement of work etc., should be included within right of the present utility model.

Claims (14)

1. a kind of solar module, including backboard, some battery tandems being located on the backboard and is electrically connected with institute The busbar of battery tandem is stated, the battery tandem includes some battery blade units being serially connected, it is characterised in that the electricity Pond blade unit is included by connected two sub-pieces of interconnecting strip and the elongate slot between two sub-pieces, the elongate slot The bearing of trend of bearing of trend and the interconnecting strip incline and intersect, and all elongate slot in same battery tandem With identical bearing of trend.
2. solar module as claimed in claim 1, it is characterised in that the sub-pieces has and extends parallel to interconnecting strip Direction long while and minor face and connection minor face and long while bevelled edge, and the cutting sth. askew of two sub-pieces in the battery blade unit Side is in opposing parallel setting, and the elongate slot is formed between two bevelled edges;The interconnecting strip is divided through the elongate slot Lian Jie not the sensitive surface of a sub-pieces and the shady face of another sub-pieces.
3. solar module as claimed in claim 2, it is characterised in that two sub-pieces in the battery blade unit are equal Trapezoidal and area equation, two sub-pieces are cut along the bevelled edge and obtained by square solar battery sheets, described The sensitive surface of sub-pieces is provided with the main gate line that at least three length are not waited.
4. solar module as claimed in claim 2, it is characterised in that the width of the elongate slot and battery tandem In gap width between two neighboring battery blade unit equal.
5. solar module as claimed in claim 2, it is characterised in that the length difference of the long side and the minor face Twice equal to or more than the elongate slot width.
6. solar module as claimed in claim 1, it is characterised in that the quantity of some battery tandems more than etc. In 2, and the two ends per two neighboring battery tandem are connected in parallel to form a battery strings group by busbar, in the battery strings group All elongate slot bearing of trend all same.
7. solar module as claimed in claim 6, it is characterised in that the solar module has at least two The individual battery strings group being serially connected, and the bearing of trend of the elongate slot in two neighboring battery strings group is different.
8. solar module as claimed in any of claims 1 to 7 in one of claims, it is characterised in that the elongate slot Angle between bearing of trend and the interconnecting strip more than 45 degree and is less than 90 degree.
9. solar module as claimed in claim 8, it is characterised in that the angle is in the range of 60 to 90 degree.
10. solar module as claimed in any of claims 1 to 7 in one of claims, it is characterised in that the elongate slot Width is in the range of 0.5 to 5 millimeter.
11. solar modules as claimed in claim 10, it is characterised in that the width of the elongate slot is in 1 to 3 milli In the range of rice.
12. solar modules as claimed in claim 1, it is characterised in that each long and narrow in the adjacent battery tandem Gap be arranged in parallel.
13. solar modules as claimed in claim 1, it is characterised in that each long and narrow in the adjacent battery tandem Gap is crisscross arranged.
14. solar modules as claimed in claim 1, it is characterised in that the backboard is included for supporting the electricity The sensitive surface of pond tandem, the sensitive surface scribble reflecting coating.
CN201621038876.6U 2016-09-06 2016-09-06 Solar module Active CN206003789U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107623049A (en) * 2017-09-14 2018-01-23 苏州携创新能源科技有限公司 A kind of ultra dense arrangement photovoltaic module
CN107819051A (en) * 2016-09-06 2018-03-20 阿特斯阳光电力集团有限公司 Solar cell module
CN108428751A (en) * 2018-04-13 2018-08-21 浙江晶科能源有限公司 A kind of imbrication modular construction
CN109256434A (en) * 2017-07-12 2019-01-22 苏州阿特斯阳光能源科技有限公司 Photovoltaic module and its series welding method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107819051A (en) * 2016-09-06 2018-03-20 阿特斯阳光电力集团有限公司 Solar cell module
CN107819051B (en) * 2016-09-06 2024-03-22 阿特斯阳光电力集团股份有限公司 Solar cell module
CN109256434A (en) * 2017-07-12 2019-01-22 苏州阿特斯阳光能源科技有限公司 Photovoltaic module and its series welding method
CN107623049A (en) * 2017-09-14 2018-01-23 苏州携创新能源科技有限公司 A kind of ultra dense arrangement photovoltaic module
CN108428751A (en) * 2018-04-13 2018-08-21 浙江晶科能源有限公司 A kind of imbrication modular construction

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 215129 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199

Patentee after: Artes sunshine Power Group Co. Ltd.

Patentee after: Changshu Canadian Solar Inc.

Address before: 215129 Suzhou high tech Zone, Jiangsu, Lu Shan Road, No. 199

Patentee before: Canadian (China) Investment Co., Ltd.

Patentee before: Changshu Canadian Solar Inc.

CP01 Change in the name or title of a patent holder
CP03 Change of name, title or address

Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province

Patentee after: Atlas sunshine Power Group Co.,Ltd.

Patentee after: Changshu Artes Sunshine Power Technology Co.,Ltd.

Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province

Patentee before: CSI SOLAR POWER GROUP Co.,Ltd.

Patentee before: Changshu Artes Sunshine Power Technology Co.,Ltd.

CP03 Change of name, title or address