CN214753795U - Rectangular single crystal cell, module and module circuit - Google Patents
Rectangular single crystal cell, module and module circuit Download PDFInfo
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- CN214753795U CN214753795U CN202120176849.XU CN202120176849U CN214753795U CN 214753795 U CN214753795 U CN 214753795U CN 202120176849 U CN202120176849 U CN 202120176849U CN 214753795 U CN214753795 U CN 214753795U
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- 210000002858 crystal cell Anatomy 0.000 title claims abstract description 6
- 210000004027 cell Anatomy 0.000 claims abstract description 44
- 239000013078 crystal Substances 0.000 claims description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Battery Mounting, Suspending (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a rectangle single crystal cell piece, subassembly and subassembly circuit belongs to solar cell technical field. The battery piece is rectangular, the length of the battery piece is 158-250 mm, the width of the battery piece is 158-250 mm, the difference value of the length and the width is D, and D is larger than 0 and is smaller than or equal to 50 mm. The utility model discloses can be to subassembly limit dimension's length and width make full use of to the increase battery area of maximize improves subassembly power.
Description
Technical Field
The utility model belongs to the technical field of solar cell, a rectangle battery piece, subassembly and subassembly circuit are related to.
Background
The existing battery piece is usually designed in a square shape, the assembly is formed by connecting the battery piece or the battery piece after being sliced, in the transportation process, the assembly is usually transported by adopting a container, the limit size of the existing assembly is limited due to the limitation of the inner diameter size of the container, the size of the assembly is inconsistent with the size matching inside the container, and the assembly and the inside of the container have larger gaps, so that the waste of the carrying space of the container is caused. Due to the size limitation of the existing battery plate, the size of the assembly cannot be optimized according to the internal size of the container, which increases the cost of the unit power of the assembly to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide a rectangle single crystal cell piece, subassembly and subassembly circuit.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
a rectangular single crystal battery piece comprises a battery piece and is characterized in that the battery piece is rectangular, the size of the battery piece is 158-250 mm in length and 158-250 mm in width, the difference value of the length and the width is D, and D is larger than 0 and smaller than or equal to 50 mm.
Further, the size of the battery piece is 220mm x 208mm or 210mm x 182mm or 186mm x 180 mm.
Furthermore, four corners of the battery piece are provided with chamfers.
Further, when the assembly is designed, the battery piece is divided into two or three pieces.
Furthermore, when the assembly is designed, the battery pieces are divided into four or more than four segments.
Furthermore, the cell slice with the size of 220mm x 208mm is made of the silicon rod slice with the diameter of 300-315 mm, the cell slice with the size of 210mm x 182mm is made of the silicon rod slice with the diameter of 280-295 mm, and the cell slice with the size of 186mm x 180mm is made of the silicon rod slice with the diameter of 255-270 mm.
The assembly adopting the rectangular single crystal battery piece is characterized in that: the battery piece (1) is cut into two sub-pieces, three sub-pieces or four sub-pieces and then connected in series to form a battery string, and then a plurality of battery strings are connected in parallel and/or connected in parallel to form the battery pack.
The assembly circuit adopting the rectangular single-crystal battery piece is characterized by comprising a plurality of battery string units which are connected in series, wherein each battery string unit comprises two battery strings which are connected in parallel, and each battery string comprises a plurality of battery pieces which are connected in series.
The assembly circuit adopting the rectangular single-crystal battery piece is characterized by comprising a plurality of battery string units which are connected in series, wherein each battery string unit comprises two battery strings which are connected in parallel, and each battery string comprises a plurality of battery pieces.
The assembly circuit adopting the rectangular single crystal battery piece is characterized in that a positive terminal and a negative terminal of the assembly circuit are positioned on the same side of the assembly circuit.
Compared with the prior art, the utility model has the advantages of:
1. the assembly is formed by connecting battery pieces or battery pieces after being sliced, and is usually transported by containers in the transportation process, and the limit size of the existing assembly is limited due to the limit of the inner diameter size of the containers. The utility model provides a rectangle battery piece can make the subassembly more nimble in size design to match the size of container better, reach the biggest with container delivery space utilization, and then improve monolithic subassembly's power, reduce the cost of subassembly end unit power.
2. The utility model discloses a production technology of rectangle single crystal cell piece, silicon chip and battery piece does not have the change, need not to add new production facility, can not additionally increase the cost.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of example 1;
FIG. 2 is a schematic view of example 2
FIGS. 3 to 4 are schematic views of example 3.
In the figure, a battery sheet 1, a battery string unit 2, a battery string 3, a positive terminal 4, and a negative terminal 5.
Detailed Description
Example 1
As shown in fig. 1, a rectangular single-crystal cell sheet comprises a cell sheet 1, wherein the cell sheet 1 is rectangular, and the size of the cell sheet 1 is 220mm x 208mm, 210mm x 182mm, or 186mm x 180 mm.
In the present embodiment, the four corners of the battery piece 1 are chamfered, but the battery piece 1 may not be chamfered.
When the assembly is designed, the battery piece 1 is divided into two pieces, or the battery piece 1 is divided into three pieces, or the battery piece 1 is divided into four or more pieces. Preferably, however, the battery piece is a two-piece, and the scribe line 1a is parallel to the long side of the battery piece 1, and this scribe can better fit the inner size of the container, thereby maximizing the size of the module.
Preferably, cell pieces of size 220mm 208mm are made from silicon rod slices of diameter 306.8mm, cell pieces of size 210mm 182mm are made from silicon rod slices of diameter 282mm, and cell pieces of size 186mm 180mm are made from silicon rod slices of diameter 262.8 mm.
The following table shows the slice utilization rate of the silicon rod cut cell slice in the prior art by taking a single crystal as an example:
it can be seen that the cell pieces of 220mm 182mm and 182mm 166mm, the cell pieces of 210mm 182mm are made of 282mm diameter silicon rod slices, and the utilization rate of the cell pieces is basically unchanged from that of the square cell pieces 210mm and 182mm adopted in the prior art after the silicon rods with the diameters of 306.8mm and 262.8mm are respectively adopted for cutting.
Example 2
For the size of the existing container, the size of the container space is utilized to the maximum extent, and the maximum limit size of the assembly is 1135 × 2385mm, so that the total area of the battery pieces can be maximized and the output power of the assembly can be improved under the size limit and the circuit design requirements of the battery pieces are met.
If we use 50 whole cells of 210 x 210mm and cut half to form 100 half cells, as in the 10 string x 10 design of fig. 2 below, each half cell size is 210mm x 105mm, the length direction of the half cells (210mm) is arranged perpendicular to the length direction of the string, the cell gap is 2mm, the string gap is 3mm, the module size is 1125 x 2160mm, and the module output is 500W.
Adopt the utility model discloses the subassembly that rectangle single crystal battery piece formed that embodiment 1 provided, the concrete size of rectangle single crystal battery piece is 50 whole pieces of battery pieces 220 x 210mm, form 100 half batteries after cutting half, the size of every half battery is 220mm x 105mm, the length direction (220mm) of half battery is arranged perpendicularly with the length direction of cluster, same design, the subassembly size is 1125 x 2260mm, still satisfy 1135 x 2385 mm's subassembly limit size under, because the battery piece area has increased 4.76%, so the subassembly output improves 523W, improve the subassembly power greatly, the subassembly cost has been reduced; meanwhile, as the preset limit size of the assembly is not exceeded, the overall logistics cost of the assembly cannot be increased, so that the logistics cost of unit power is reduced; in addition, the system cost of actual installation is reduced, so that the LCOE of the photovoltaic industry is greatly reduced.
Example 3
If we use 55 whole pieces of 210 x 210mm cells and cut half to form 110 half cells, as shown in the design of 5 strings of 22 cells in fig. 3, the size of each half cell is 210mm x 105mm, the length direction (210mm) of the half cells is arranged perpendicular to the length direction of the strings, the cell gap is 0.6mm, the cell string gap is 2mm, as shown in fig. 3, the size of the module is 1102 2385mm, and the output power of the module is 545W.
Adopt the utility model discloses the subassembly that rectangle single crystal battery piece formed that embodiment 1 provided, the concrete size of rectangle single crystal battery piece is 210 182mm, thus, just can adopt 66 whole pieces, cut half back and form 132 half batteries, the size of half battery is 182 105mm, adopt 6 strings 22 design of piece, length direction (182mm) of half battery are arranged perpendicularly with the length direction of cluster, like figure 4, the subassembly size is 1135 2385mm, under still satisfying 1135 2385 mm's subassembly limit size, furthest has utilized the space of container. At the moment, the area of the battery plate of the single module is increased by 4%, the output power of the module can be improved to 565W, and similarly, the power of the module is greatly improved, the cost of the module is reduced, the logistics cost is reduced, and the cost of a system which is actually installed is also reduced, so that the LCOE of the photovoltaic industry is greatly reduced.
Of course, based on the maximum limit size of the assembly defined by the specific container size, the rectangular single crystal battery piece provided by embodiment 1 of the present invention can be adopted, and the specific battery piece size is designed, so that the maximum utilization rate of the container and the maximum optimization of the assembly power and cost are realized.
Example 4
In this embodiment, based on the battery cell provided in embodiment 1, an assembly circuit is provided, where the assembly circuit includes a plurality of battery string units 2 connected in series, the battery string units 2 include two battery strings 3 connected in parallel, and the battery strings 3 include a plurality of battery cells 1 connected in series.
In another scheme, the assembly circuit comprises a plurality of battery string units 2 which are mutually connected in series, each battery string unit 2 comprises two battery strings 3 which are connected in parallel, and each battery string 3 comprises a plurality of battery slices 1.
As described in example 1, the slices are two, three, or four slices, etc. The positive terminal 4 and the negative terminal 5 of the component circuit are located on the same side of the component circuit.
This embodiment, through obtaining battery string unit with 2 battery series-parallel connections, establish ties battery string unit again, new subassembly circuit can make the terminal box in one side, arranges rationally, and the wiring is convenient.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (11)
1. A rectangular single crystal battery piece comprises a battery piece (1) and is characterized in that the battery piece (1) is rectangular, the size of the battery piece (1) is 158-250 mm in length and 158-250 mm in width, the difference value between the length and the width is D, and D is larger than 0 and is smaller than or equal to 50 mm.
2. Rectangular single-crystal cell sheet according to claim 1, characterized in that the cell sheet (1) has dimensions of 220mm x 208mm or 210 x 182mm or 186mm x 180 mm.
3. The rectangular single-crystal cell piece according to claim 1, wherein the four corners of the cell piece (1) are chamfered.
4. The rectangular single-crystal cell plate according to claim 1, wherein the cell plate (1) is divided into two or three pieces when designing an assembly.
5. The rectangular single-crystal cell plate according to claim 1, wherein the cell plate (1) is divided into four or more segments when designing an assembly.
6. The rectangular single crystal cell according to claim 2, wherein the cell having a size of 220mm x 208mm is made from a silicon rod having a diameter of 300 to 315mm, the cell having a size of 210mm x 182mm is made from a silicon rod having a diameter of 280 to 295mm, and the cell having a size of 186mm x 180mm is made from a silicon rod having a diameter of 255 to 270 mm.
7. An assembly using the rectangular single-crystal cell piece according to any one of claims 1 to 3, wherein: the battery piece (1) is cut into two sub-pieces, three sub-pieces or four sub-pieces and then connected in series to form a battery string, and then a plurality of battery strings are connected in parallel to form the battery string.
8. An assembly circuit using the rectangular single-crystal battery plate as claimed in any one of claims 1 to 6, characterized in that the assembly circuit comprises a plurality of battery string units (2) connected in series with each other, the battery string units (2) comprise two battery strings (3) connected in parallel, and the battery strings (3) comprise a plurality of battery plates (1) connected in series with each other.
9. The rectangular single-crystal cell piece assembly circuit of claim 8, wherein the positive terminal (4) and the negative terminal (5) of the assembly circuit are located on the same side of the assembly circuit.
10. An assembly circuit using the rectangular single-crystal battery piece as claimed in any one of claims 3 to 5, characterized in that the assembly circuit comprises a plurality of battery string units (2) connected in series with each other, the battery string units (2) comprise two battery strings (3) connected in parallel, and the battery strings (3) comprise a plurality of battery pieces (1) divided into pieces.
11. The assembly circuit of rectangular single crystal battery pieces according to claim 10, wherein the positive terminal (4) and the negative terminal (5) of the assembly circuit are located on the same side of the assembly circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2022/071206 WO2022156560A1 (en) | 2020-07-22 | 2022-01-11 | Rectangular mono-crystalline cell, module, and module circuit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021458546 | 2020-07-22 | ||
| CN2020214585469 | 2020-07-22 |
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| Publication Number | Publication Date |
|---|---|
| CN214753795U true CN214753795U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120176849.XU Active CN214753795U (en) | 2020-07-22 | 2021-01-22 | Rectangular single crystal cell, module and module circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN214753795U (en) |
| WO (1) | WO2022156560A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022156560A1 (en) * | 2020-07-22 | 2022-07-28 | 天合光能股份有限公司 | Rectangular mono-crystalline cell, module, and module circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017000599A1 (en) * | 2015-07-02 | 2017-01-05 | 苏州阿特斯阳光电力科技有限公司 | Solar cell module |
| CN205985010U (en) * | 2016-04-25 | 2017-02-22 | 南通英菲新能源有限公司 | Solar module |
| CN111463301A (en) * | 2020-05-19 | 2020-07-28 | 东方日升新能源股份有限公司 | Silicon wafer/cell, photovoltaic cell assembly, carrier and design arrangement method |
| CN214753795U (en) * | 2020-07-22 | 2021-11-16 | 天合光能股份有限公司 | Rectangular single crystal cell, module and module circuit |
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2021
- 2021-01-22 CN CN202120176849.XU patent/CN214753795U/en active Active
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2022
- 2022-01-11 WO PCT/CN2022/071206 patent/WO2022156560A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022156560A1 (en) * | 2020-07-22 | 2022-07-28 | 天合光能股份有限公司 | Rectangular mono-crystalline cell, module, and module circuit |
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| Publication number | Publication date |
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| WO2022156560A1 (en) | 2022-07-28 |
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Effective date of registration: 20230731 Address after: 213031 Tianhe PV Industrial Park No. 2, Xinbei District, Changzhou, Jiangsu Patentee after: TRINASOLAR Co.,Ltd. Patentee after: TRINA SOLAR( CHANGZHOU) TECHNOLOGY Co.,Ltd. Address before: 213031 Tianhe PV Industrial Park No. 2, Xinbei District, Changzhou, Jiangsu Patentee before: TRINASOLAR Co.,Ltd. |