CN204966515U - Battery piece unit - Google Patents
Battery piece unit Download PDFInfo
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- CN204966515U CN204966515U CN201520687544.XU CN201520687544U CN204966515U CN 204966515 U CN204966515 U CN 204966515U CN 201520687544 U CN201520687544 U CN 201520687544U CN 204966515 U CN204966515 U CN 204966515U
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- grid line
- piece unit
- width
- negative pole
- cell piece
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Abstract
The utility model relates to a solar energy battery piece unit, the grid line at its back sets up in groups, and each group's grid line contains an anodal grid line and a negative pole grid line, and anodal grid line is the same with the width of negative pole grid line to equal the gap width between anodal grid line and the negative pole grid line, battery piece unit the edge with grid line parallel arrangement, just battery piece unit's width is the integral multiple of the width of a set of grid line. Through above setting for the structure of each battery piece is identical, all contains the anodal grid line and the negative pole grid line of the same quantity, and can not make the grid line destroyed, thereby has improved the yields effectively, and can be used for automated production, improves production efficiency, reduction in production cost.
Description
Technical field
The utility model relates to finished product or the semi-finished product processing technique field of solar module, particularly a kind of solar cell blade unit.
Background technology
Solar battery sheet take generally crystalline silicon as base material, and the front of base material is provided with navy blue antireflection layer, and the back side is provided with conductive layer, comprises the grid line of intensive setting, in order to collect the electric energy that sunlight conversion produces, and is collected on pad.
In the process technology of traditional solar battery sheet, after normally first the pad at the solar battery sheet edge of monoblock being cut away, again according to actual size sliced crystal silicon, then the cell piece of the fritter of cutting is drawn a copper cash from the back side, for being connected in series or parallel with other cell piece.This cell piece, the grid line number at the back side is uncertain, the quantity of positive pole grid line and negative pole grid line may be caused not corresponding, or the relative position of positive and negative electrode grid line on cell piece is uncertain, cause, in follow-up manufacturing procedure, easily occurring defect ware, or affect the welding of copper cash, further, because the relative position of positive and negative electrode grid line on cell piece is uncertain, thus automated production cannot be realized.
Utility model content
Main purpose of the present utility model is, provides a kind of solar cell blade unit, effectively can reduce or produce defect ware after avoiding cutting, thus improving yields, reducing waste of material, reduce production cost.
In order to realize foregoing invention object, the utility model by the following technical solutions.
The utility model provides a kind of solar cell blade unit, formed by crystal silicon solar cell sheet cutting, the front of described crystal silicon solar cell sheet is photosurface, the intensive grid line be provided with for collecting electric energy in the back side, described grid line is arranged in groups, each group grid line comprises a positive pole grid line and a negative pole grid line, and positive pole grid line is identical with the width of negative pole grid line, and equals the gap width between positive pole grid line and negative pole grid line; Edge and the described grid line of described cell piece unit be arranged in parallel, and the width of described cell piece unit is the integral multiple of the width of one group of grid line.
Preferably, the grid line of described crystal silicon solar cell sheet is that both positive and negative polarity is interspersed setting, one end of the grid line at the cell piece unit back side after described cutting is made to form positive pole, the other end forms negative pole, and described cell piece unit is provided with the tag line for identifying its polarity in the position of the one end near its negative or positive electrode.
Preferably, described tag line is basically perpendicular to described grid line.
The solar cell blade unit of the present embodiment is by being set to identical by the gap width between every bar grid line and grid line, and make its cell piece width be the integral multiple of one group of grid line width when cutting, make the structure of each block solar battery sheet identical, all comprise positive pole grid line and the negative pole grid line of equal number, and grid line can not be made to be destroyed, thus effectively improve yields, and can automated production be used for, enhance productivity, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of crystal silicon solar cell sheet in the utility model embodiment.
Fig. 2 is the structural representation of cell piece unit in the embodiment of the present invention.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Below with reference to drawings and the specific embodiments describe in detail the technical solution of the utility model so as clearer, understand invention essence of the present utility model intuitively.
The solar cell blade unit of the present embodiment as shown in Figure 2, it be as shown in Figure 1 crystal silicon solar cell sheet 10 cutting form, this crystal silicon solar cell sheet 10 is all back-contact electrodes contact-type crystal silicon solar cell sheet, front is photosurface, photosurface is provided with antireflection layer, fully to absorb sunlight, and opto-electronic conversion effect is utilized to produce electric energy.The intensive grid line 11 be provided with for collecting above-mentioned electric energy in the back side of solar battery sheet 10, it is zinc-plated that these grid lines 11 are generally copper.Grid line 11 is for arrange in groups, and each group grid line 11 comprises a positive pole grid line and a negative pole grid line, and positive pole grid line and negative pole grid line are interspersed.Positive pole grid line is identical with the width of negative pole grid line, and equals the gap width between positive pole grid line and negative pole grid line, and the rear surface regions of solar battery sheet 10 is evenly distributed shape.
In the present embodiment, the edge of solar cell blade unit 20 and the grid line 11 at the back side be arranged in parallel, and the width of cell piece unit 20 is the integral multiple of the width of one group of grid line 11.For making grid line 11 not be destroyed, when cutting, cutting width should be not more than the gap width between adjacent two grid lines 11.As for how to control cutting width, can be realized by the laser parameter controlling laser scribing means, the concrete practice with reference to the cutting technique of traditional solar battery sheet, can repeat no more herein.
In addition, because the grid line 11 of crystal silicon solar cell sheet 10 to be interspersed setting for both positive and negative polarity, one end of the grid line at the back side of the cell piece unit after cutting is made to form positive pole, the other end forms negative pole, therefore the present embodiment is set at the back side of cell piece unit 20, the position of one end of its negative or positive electrode is provided with the tag line 21 for identifying its polarity, and this tag line 21 is basically perpendicular to grid line 11 and arranges.
Particularly, due to cell piece unit 20 symmetrically shape, in order to prevent the polarity of cutting rear None-identified cell piece unit 20, the present embodiment cell piece unit 20 draw one vertical or be basically perpendicular to the tag line 21 of grid line 11, with indicate this end of cell piece unit 20 both positive and negative polarity.Such as, if the left side of solar battery sheet 10 is positive pole, the right is negative pole, then the left side of cutting the cell piece unit 20 of formation is positive pole, and the right is negative pole, now, if what indicate is positive pole, then draw a tag line 21 in the edge near the left side, in like manner, if what indicate is negative pole, then draw a tag line 21 at the edge near the right.
In sum, the solar cell blade unit of the present embodiment is by being set to identical by the gap width between every bar grid line and grid line, and make its cell piece width be the integral multiple of one group of grid line width when cutting, make the structure of each block cell piece identical, all comprise positive pole grid line and the negative pole grid line of equal number, and grid line can not be made to be destroyed, thus effectively improve yields, and can automated production be used for, enhance productivity, reduce production cost.
The foregoing is only preferred embodiment of the present utility model; not thereby its scope of the claims is limited; every equivalent structure transformation utilizing the utility model specification and accompanying drawing content to do; directly or indirectly be used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a solar cell blade unit, formed by crystal silicon solar cell sheet cutting, the front of described crystal silicon solar cell sheet is photosurface, the intensive grid line be provided with for collecting electric energy in the back side, it is characterized in that: described grid line is arranged in groups, each group grid line comprises a positive pole grid line and a negative pole grid line, and positive pole grid line is identical with the width of negative pole grid line, and equals the gap width between positive pole grid line and negative pole grid line; Edge and the described grid line of described cell piece unit be arranged in parallel, and the width of described cell piece unit is the integral multiple of the width of one group of grid line.
2. cell piece unit as claimed in claim 1, it is characterized in that: the grid line of described crystal silicon solar cell sheet is that both positive and negative polarity is interspersed setting, one end of the grid line at the cell piece unit back side after described cutting is made to form positive pole, the other end forms negative pole, and described cell piece unit is provided with the tag line for identifying its polarity in the position of the one end near its negative or positive electrode.
3. cell piece unit as claimed in claim 2, is characterized in that: described tag line is basically perpendicular to described grid line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520687544.XU CN204966515U (en) | 2015-09-08 | 2015-09-08 | Battery piece unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520687544.XU CN204966515U (en) | 2015-09-08 | 2015-09-08 | Battery piece unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966515U true CN204966515U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520687544.XU Active CN204966515U (en) | 2015-09-08 | 2015-09-08 | Battery piece unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966515U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633178A (en) * | 2016-03-21 | 2016-06-01 | 无锡携创新能源科技有限公司 | Back contact process battery sheet and manufacturing method thereof |
| CN105826407A (en) * | 2016-03-21 | 2016-08-03 | 无锡携创新能源科技有限公司 | Back contact technology battery assembly and manufacturing method thereof |
-
2015
- 2015-09-08 CN CN201520687544.XU patent/CN204966515U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633178A (en) * | 2016-03-21 | 2016-06-01 | 无锡携创新能源科技有限公司 | Back contact process battery sheet and manufacturing method thereof |
| CN105826407A (en) * | 2016-03-21 | 2016-08-03 | 无锡携创新能源科技有限公司 | Back contact technology battery assembly and manufacturing method thereof |
| CN105633178B (en) * | 2016-03-21 | 2017-10-17 | 无锡携创新能源科技有限公司 | A kind of back contacts technique cell piece and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |