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.
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.