CN203941912U - A kind of photovoltaic cell and photovoltaic module - Google Patents
A kind of photovoltaic cell and photovoltaic module Download PDFInfo
- Publication number
- CN203941912U CN203941912U CN201420211775.9U CN201420211775U CN203941912U CN 203941912 U CN203941912 U CN 203941912U CN 201420211775 U CN201420211775 U CN 201420211775U CN 203941912 U CN203941912 U CN 203941912U
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- Prior art keywords
- electrode
- main grid
- grid line
- line electrode
- photovoltaic cell
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- 238000010276 construction Methods 0.000 claims abstract description 16
- 239000004065 semiconductor Substances 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 32
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 229910052709 silver Inorganic materials 0.000 abstract description 9
- 239000004332 silver Substances 0.000 abstract description 9
- 239000002002 slurry Substances 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000013083 solar photovoltaic technology Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007581 slurry coating method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses a kind of photovoltaic cell and photovoltaic module, relate to solar-photovoltaic technology field, design for solving the problems such as existing photovoltaic cell production cost is high, light-receiving area is little.This photovoltaic cell comprises semiconductor substrate and is arranged at the electrode on semiconductor substrate, described electrode comprises many thin gate line electrodes and perpendicular to described many at least one main grid line electrodes that thin gate line electrode is arranged, described main grid line electrode is frame-shaped construction.A kind of photovoltaic module with above-mentioned photovoltaic cell is proposed simultaneously.The photovoltaic cell that the utility model provides, due to the middle part entirety hollow out of the main grid line electrode of its frame-shaped construction, without at entirety hollow out region, middle part printed silver slurry, greatly reduces production cost under the prerequisite that does not affect conversion efficiency own.
Description
Technical field
The utility model relates to solar-photovoltaic technology field, relates in particular to a kind of photovoltaic cell and photovoltaic module.
Background technology
Solar-energy photo-voltaic cell (PV Cell) (being called for short photovoltaic cell-Solar Cell) is converted into electric energy for the luminous energy the sun.According to application demand, solar cell is through certain combination, reaches one group of photovoltaic cell of the voltage of certain rated output power and output, is photovoltaic module.
The structure of existing photovoltaic cell as shown in Figure 1, comprise semiconductor substrate and be arranged at the electrode on semiconductor substrate, wherein, electrode comprises vertically arranged many thin gate line electrodes 1 ' of mutual intersection and many main grid line electrodes 2 ', common main grid line electrode 2 ' is 2-3 root, and main grid line electrode 2 ' be one whole continuous, in order to improve cell piece efficiency, increase component power and conventionally need to increase number of electrodes, but the quantity that increases electrode can reduce the light-receiving area of cell piece, affect the efficiency of cell piece, and electrode is generally silver slurry coating, cost is higher, increase number of electrodes and can strengthen production cost.
Utility model content
An object of the present utility model is that proposition is a kind of is not affecting the photovoltaic cell effectively saving production cost under the prerequisite of conversion efficiency own.
Another object of the present utility model is to propose the photovoltaic module that a kind of transformation efficiency is high, simple in structure, production cost is low.
For reaching this object, on the one hand, the utility model by the following technical solutions:
A kind of photovoltaic cell, comprise semiconductor substrate and be arranged at the electrode on semiconductor substrate, described electrode comprises many thin gate line electrodes and perpendicular to described many at least one main grid line electrodes that thin gate line electrode is arranged, described main grid line electrode is frame-shaped construction.
Preferably, described frame-shaped construction comprise be positioned at described main grid line electrode two ends a segment electrode and two-section electrode and be connected three segment electrodes and four segment electrodes of a described segment electrode and described two-section electrode, the region that a described segment electrode, two-section electrode, three segment electrodes and four segment electrodes surround is the white space without gate line electrode.
Preferably, the width of described main grid line electrode is 1.2 to 3mm.
Preferably, the width of described three segment electrodes and described four segment electrodes is 0.2-0.5mm.
Preferably, the two ends of described main grid line electrode are reserved with trough, and described thin gate line electrode runs through described trough.
On the other hand, the utility model is by the following technical solutions:
A kind of photovoltaic module, described photovoltaic module has multiple above-mentioned photovoltaic cells.
Preferably, on described main grid line electrode, be welded with welding, weld with described three segment electrodes and described four segment electrodes respectively the both sides of described welding.
Preferably, the cross section of described welding is trapezoidal and described trapezoidal shorter base near the setting of described main grid line electrode.
Preferably, the length on the shorter base of the trapezoid cross section of described welding is 0.6-1.5mm, and the length on longer base is 1.2-3mm.
Preferably, in the one side away from described main grid line electrode of described welding, be provided with reflecting strips.
The beneficial effects of the utility model are:
The main grid line electrode of a kind of photovoltaic cell that the utility model provides is frame-shaped construction, one segment electrode and two-section electrode are respectively starting point and the terminal of welding, three segment electrodes and four segment electrodes and thin gate line electrode welding, due to the overall hollow out in frame-shaped construction middle part, without at entirety hollow out region, middle part printed silver slurry, under the prerequisite that does not affect conversion efficiency own, greatly reduce production cost.
Brief description of the drawings
Fig. 1 is the structural representation of existing photovoltaic cell;
Fig. 2 is the structural representation of the utility model photovoltaic cell;
Fig. 3 is the partial enlarged drawing of A part in Fig. 2;
Fig. 4 is the front view arranging on photovoltaic cell after welding;
Fig. 5 is the partial enlarged drawing of B part in Fig. 4.
In figure, 1 ', thin gate line electrode; 2 ', main grid line electrode;
1, thin gate line electrode; 2, main grid line electrode; 21, a segment electrode; 22, two-section electrode; 23, three segment electrodes; 24, four segment electrodes; 25, trough; 3, welding; 4, reflecting strips.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
Embodiment mono-:
The present embodiment provides a kind of photovoltaic cell.As shown in Figures 2 and 3, this photovoltaic cell comprises semiconductor substrate and is arranged at the electrode on semiconductor substrate.At least one main grid line electrode 2 that electrode comprises many thin gate line electrodes 1 and arranges perpendicular to thin gate line electrode 1, is preferably three in the present embodiment.
Main grid line electrode 2 is frame-shaped construction, and four frames of frame-shaped construction are respectively a segment electrode 21, two-section electrode 22, three segment electrodes 23 and four segment electrodes 24.Wherein, what be positioned at main grid line electrode 2 two ends is a segment electrode 21 and two-section electrode 22, what connect a segment electrode 21 and two-section electrode 22 is that the region that three segment electrodes 23 and four segment electrode 24, one segment electrodes 21, two-section electrode 22, three segment electrodes 23 and four segment electrodes 24 surround is the white space without gate line electrode.Three segment electrodes 23 and four segment electrodes 24 weld with thin gate line electrode 1 respectively.Due to the overall hollow out in frame-shaped construction middle part, without at entirety hollow out region, middle part printed silver slurry, greatly reduce the use amount of silver slurry, under the prerequisite that does not affect conversion efficiency own, greatly reduce production cost.
Wherein, preferred, the width of main grid line electrode 2 is 3mm, and the length of a segment electrode 21 and two-section electrode 22 is 5mm, and the width of three segment electrodes 23 and four segment electrodes 24 is 0.5mm.
Be reserved with trough 25 at the two ends of main grid line electrode 2, thin gate line electrode 1 runs through trough 25.The length of trough 25 is 5mm.The consumption of welding 3 materials can be reduced in trough 25.
Wherein, the quantity of main grid line electrode is not limited to three, can be according to real needs setting; The width of length, three segment electrodes and four segment electrodes of main grid line electrode width, a segment electrode and two-section electrode, the length of trough are all not limited to above-mentioned size, the width of main grid line electrode is preferably 1.2 to 3mm, and the width of three segment electrodes and four segment electrodes is preferably 0.2 to 0.5mm; Also can not reserve trough, according to the concrete size of photovoltaic cell and welding requirements setting.
Embodiment bis-:
The present embodiment provides a kind of photovoltaic module, and this assembly has multiple photovoltaic cells as described in embodiment mono-.Because the main grid line electrode of photovoltaic cell is frame-shaped construction, the overall hollow out in frame-shaped construction middle part, without at entirety hollow out region, middle part printed silver slurry, greatly reduce the use amount of silver slurry, under the prerequisite that does not affect conversion efficiency own, greatly reduce production cost.
As shown in Figure 4 and Figure 5, be welded with welding 3 on main grid line electrode 2, welding 3 is starting point and the terminal using a segment electrode 21 and two-section electrode 22 as welding respectively.Weld with three segment electrodes 23 and four segment electrodes 24 respectively the both sides of welding 3.
The cross section of welding 3 is trapezoidal, and trapezoidal shorter base arranges near main grid line electrode 2, and longer base arranges away from main grid line electrode 2.Trapezoidal shorter bottom side length 1.5mm, longer bottom side length 3mm.In the one side away from main grid line electrode 2 of welding, reflecting strips 4 is set.Owing to being provided with wider welding 3, coordinate reflecting strips 4 can obtain higher power, in order to reduce shielded area, the width of main grid line electrode 2 is corresponding widening also, reduces the consumption of silver slurry by overall engraved structure is set at the middle part of main grid line electrode 2.
Wherein, the length on trapezoidal shorter base, welding cross section, the length on trapezoidal longer base, welding cross section are all not limited to above-mentioned size, the length on trapezoidal shorter base, welding cross section is preferably 0.6 to 1.5mm, and the length on trapezoidal longer base, welding cross section is preferably 1.2 to 3mm.
In sum, the main grid line electrode of a kind of photovoltaic cell that the utility model provides is frame-shaped construction, one segment electrode and two-section electrode are respectively starting point and the terminal of welding, three segment electrodes and four segment electrodes and thin gate line electrode welding, due to the overall hollow out in frame-shaped construction middle part, without at entirety hollow out region, middle part printed silver slurry, under the prerequisite that does not affect conversion efficiency own, greatly reduce production cost.
And the two ends of main grid line electrode are reserved with trough, welding material, without welding is set, has been saved in this position.
In addition, obtain higher power by wider welding is set, the width of main grid line electrode also widens to reduce shielded area accordingly, and by overall engraved structure is arranged to to reduce costs in the middle part of main grid line electrode.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection range.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, within these modes all will fall into protection range of the present utility model.
Claims (10)
1. a photovoltaic cell, comprise semiconductor substrate and be arranged at the electrode on semiconductor substrate, the at least one main grid line electrode (2) that described electrode comprises many thin gate line electrodes (1) and arranges perpendicular to described many thin gate line electrodes (1), it is characterized in that: the frame-shaped construction that described main grid line electrode (2) is hollow, main grid line electrode is the frame-shaped construction of hollow, and the both ends of main grid line electrode extend to the edge of semiconductor substrate.
2. a kind of photovoltaic cell according to claim 1, it is characterized in that: described frame-shaped construction comprises a segment electrode (21) that is positioned at described main grid line electrode (2) two ends with two-section electrode (22) and be connected a described segment electrode (21) and three segment electrodes (23) of described two-section electrode (22) and four segment electrodes (24), the region that a described segment electrode (21), two-section electrode (22), three segment electrodes (23) and four segment electrodes (24) surround is the white space without gate line electrode.
3. a kind of photovoltaic cell according to claim 2, is characterized in that: the width of described main grid line electrode (2) is 1.2 to 3mm.
4. a kind of photovoltaic cell according to claim 3, is characterized in that: the width of described three segment electrodes (23) and described four segment electrodes (24) is 0.2 to 0.5mm.
5. a kind of photovoltaic cell according to claim 2, it is characterized in that: the two ends of described main grid line electrode (2) are reserved with trough (25), described thin gate line electrode (1) runs through described trough (25).
6. a photovoltaic module, is characterized in that: described photovoltaic module has multiple photovoltaic cells as described in claim 2 to 5 any one.
7. a kind of photovoltaic module according to claim 6, it is characterized in that: on the main grid line electrode (2) of described photovoltaic cell, be welded with welding (3), the both sides of described welding (3) are connected with three segment electrodes (23) and four segment electrodes (24) of described photovoltaic cell respectively.
8. a kind of photovoltaic module according to claim 7, is characterized in that: the cross section of described welding (3) is trapezoidal and described trapezoidal shorter base and arranges near described main grid line electrode (2).
9. a kind of photovoltaic module according to claim 8, is characterized in that: the length on the shorter base of the trapezoid cross section of described welding (3) is 0.6 to 1.5mm, and the length on longer base is 1.2 to 3mm.
10. a kind of photovoltaic module according to claim 7, is characterized in that: in the one side away from described main grid line electrode (2) of described welding (3), be provided with reflecting strips (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211775.9U CN203941912U (en) | 2014-04-28 | 2014-04-28 | A kind of photovoltaic cell and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211775.9U CN203941912U (en) | 2014-04-28 | 2014-04-28 | A kind of photovoltaic cell and photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203941912U true CN203941912U (en) | 2014-11-12 |
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| CN201420211775.9U Expired - Lifetime CN203941912U (en) | 2014-04-28 | 2014-04-28 | A kind of photovoltaic cell and photovoltaic module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106335299A (en) * | 2015-07-14 | 2017-01-18 | 正中科技股份有限公司 | Designable printing steel plate structure of solar cell front silver electrodes |
| CN106340547A (en) * | 2016-08-31 | 2017-01-18 | 浙江尚越新能源开发有限公司 | Welding structure and method for reducing cost of photovoltaic cell |
| CN106531829A (en) * | 2016-12-23 | 2017-03-22 | 泰州乐叶光伏科技有限公司 | Interconnection structure between solar laminated cells and solar laminated cell |
-
2014
- 2014-04-28 CN CN201420211775.9U patent/CN203941912U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106335299A (en) * | 2015-07-14 | 2017-01-18 | 正中科技股份有限公司 | Designable printing steel plate structure of solar cell front silver electrodes |
| CN106340547A (en) * | 2016-08-31 | 2017-01-18 | 浙江尚越新能源开发有限公司 | Welding structure and method for reducing cost of photovoltaic cell |
| CN106531829A (en) * | 2016-12-23 | 2017-03-22 | 泰州乐叶光伏科技有限公司 | Interconnection structure between solar laminated cells and solar laminated cell |
| EP3557634A4 (en) * | 2016-12-23 | 2020-05-06 | Taizhou Lerrisolar Technology Co., Ltd. | Solar laminated cell inter-slice connection structure and solar laminated cell |
| US11784269B2 (en) | 2016-12-23 | 2023-10-10 | Taizhou Lerrisolar Technology Co., Ltd | Interconnection structure between shingled solar cell slices and solar cell with interconnection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215129 Suzhou high tech Zone, Jiangsu Province, Lu Shan Road, No. 199, No. Co-patentee after: Changshu Canadian Solar Inc. Patentee after: Artes sunshine Power Group Co. Ltd. Address before: 215011 Suzhou high tech Industrial Development Zone, Jiangsu, Lu Shan Road, No. 199 Co-patentee before: Changshu Canadian Solar Inc. Patentee before: Canadian (China) Investment Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129 199 deer Road, Suzhou hi tech Development Zone, Jiangsu, Suzhou Patentee after: Atlas sunshine Power Group Co.,Ltd. Patentee after: Changshu Artes Sunshine Power Technology Co.,Ltd. Address before: 215129 199 deer Road, Suzhou hi tech Development Zone, Jiangsu, Suzhou Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. Patentee before: Changshu Artes Sunshine Power Technology Co.,Ltd. |