CN105489687A - Solar cell module with adjustable electrical performance parameters - Google Patents
Solar cell module with adjustable electrical performance parameters Download PDFInfo
- Publication number
- CN105489687A CN105489687A CN201510972500.6A CN201510972500A CN105489687A CN 105489687 A CN105489687 A CN 105489687A CN 201510972500 A CN201510972500 A CN 201510972500A CN 105489687 A CN105489687 A CN 105489687A
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- China
- Prior art keywords
- solar cell
- layer
- solar
- cell string
- series
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000005341 toughened glass Substances 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 abstract 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 8
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 8
- 230000001172 regenerating effect Effects 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- 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)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a solar cell module with adjustable electrical performance parameters. The solar cell module comprises an ultra-white low-iron tempered glass layer, a first EVA layer, a solar cell layer, a second EVA layer and a back plate layer that are stacked in sequence from upper to lower, wherein all the layers are laminated into an overall laminated part at a high temperature and in a vacuum condition; then an aluminium alloy frame and a junction box are mounted; the solar cell layer comprises multiple solar cell strings; solar cell pieces in each solar cell string are connected in series through solder strips; the positive electrode output end and the negative electrode output end of each solar cell string are led into the junction box; and a switch apparatus, and multiple bypass diodes connected with the solar cells in series and in parallel are arranged in the junction box. The switch apparatus is provided with a single switch or multiple switches; and meanwhile, the series connection and parallel connection among the multiple solar cell strings are realized through various combinations of the switches, and finally the electrical performance parameters of the module are adjustable.
Description
Technical field
The present invention relates to solar energy materials and devices field, particularly relate to the solar module that a kind of unit for electrical property parameters can regulate.
Background technology
Along with traditional fossil energy reduces day by day, constantly aggravate the harm that environment causes, regenerative resource has all been invested sight in countries in the world, wishes that regenerative resource can change the energy resource structure of the mankind, maintains long-range sustainable development.Wherein solar energy becomes the focus that people pay attention to its exclusive advantage.Abundant solar radiant energy is the important energy, is inexhaustible, nexhaustible, pollution-free, cheap regenerative resource.
In the numerous application of solar energy, an application is the most widely photovoltaic generation, and the core component of photovoltaic generation is solar module, and the elementary cell of solar module is then solar battery sheet.Traditional solar module mainly uses toughened glass, EVA(ethylene-vinyl acetate), a backboard and frame entirety that solar battery sheet is packaged into, solar energy is directly converted to electric energy by solar battery sheet, and the electric energy produced by assembly finally by the connector in terminal box exports.
Solar battery sheet in existing solar module is the connected mode of series connection substantially, after component lamination, every unit for electrical property parameters such as peak power output, open circuit voltage, short circuit current, maximum power voltage and the maximum power electric current etc. of assembly have been determined, cannot adjust these parameters or revise, this makes the use of assembly be restricted.Particularly for some from net photovoltaic system, the parameter such as output voltage, electric current of controller to assembly has special requirement, and the unit for electrical property parameters of assembly must meet these conditions and could apply in such systems.
Summary of the invention
For the problems referred to above, the object of this invention is to provide the solar module that a kind of unit for electrical property parameters is adjustable, the parameters such as the open circuit voltage of assembly, short circuit current, maximum power voltage and maximum power electric current can be adjusted accordingly by the connected mode changing solar cell string, thus the range of application of enlarged component.
The technical scheme that the present invention realizes above-mentioned purpose is as follows:
The solar module that a kind of unit for electrical property parameters is adjustable, comprise the ultrawhite stacking gradually arrangement from top to bottom low iron toughened glass layer, one EVA layer, solar cell layer, 2nd EVA layer and backsheet layer, first layers of material is holistic laminate in high-temperature vacuum laminated according to said sequence, and then aluminum alloy frame and terminal box are installed, it is characterized in that: described solar cell layer comprises multiple solar cell string, solar battery sheet in each solar cell string is connected in series by welding, then by convergent belt, the positive pole of often going here and there and cathode output end are introduced terminal box, switching device and the multiple and series-parallel bypass diode of solar cell is provided with in described terminal box.
Described switching device is provided with multiple binding post, is connected respectively with the positive pole of solar cell string and cathode output end.
Described switching device is provided with single or multiple switch, by the various combinations of switch, realizes the series and parallel connections between multiple solar cell string.
Described switchtype is double-point double-throw switch, single-pole double-throw switch (SPDT), double-pole single throw or single-pole single-throw switch (SPST).
Described cassettes is single or multiple.
The present invention uses the switching device in terminal box to control the connected mode between solar cell string, by selecting different connected modes, change output current and the output voltage values of assembly reality, and the peak power output of assembly can not be affected.Such as when selecting to connect between solar cell string, then the output voltage of assembly is comparatively large and output current is less; When selecting to carry out parallel connection between solar cell string, then the output voltage of assembly is less and output current is larger.Therefore this mode achieves the adjustability of assembly output current and output voltage, and simple to operation.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Fig. 1 is solar module structural representation of the present invention.
Fig. 2 is the electrical schematics of solar module.
Fig. 3 is switching device schematic diagram.
In figure, 1 is ultrawhite low iron toughened glass layer, and 2 is an EVA layer, 3 is solar cell layer, and 4 is the 2nd EVA layer, and 5 is backsheet layer, 6 is aluminum alloy frame, and 7 is terminal box, and 8a, 8b are solar cell string, 9a, 9b, 9c, 9d are convergent belt, 10a, 10b are bypass diode, and 11 is switching device, and 11a, 11b, 11c, 11d, 11e, 11f are the binding post of switching device, 12 is double-point double-throw switch, and 13a, 13b are the lead-out terminal of terminal box.
Embodiment
For understanding the novel technical characteristic of the present invention and content further, now the detailed technology of this patent is described below:
As shown in Figure 1, the solar module that a kind of unit for electrical property parameters is adjustable, comprise the ultrawhite stacking gradually arrangement from top to bottom low iron toughened glass layer the 1, the one EVA layer 2, solar cell layer 3, the 2nd EVA layer 4 and backsheet layer 5, first layers of material is holistic laminate in high-temperature vacuum laminated according to said sequence, and then installs aluminum alloy frame 6 and terminal box 7 becomes described solar module.
As shown in Figure 2, solar cell string 3 is containing two solar cell string 8a and 8b, after solar battery sheet in each solar cell string is connected by welding, then respectively by convergent belt 9a, 9b, 9c and 9d, the positive pole of often going here and there and cathode output end are introduced terminal box 7.Two bypass diode 10a and 10b are provided with in terminal box, in parallel with cathode output end with the positive pole of solar cell string 8a and 8b respectively.The principle of the switching device 11 arranged in terminal box as shown in Figure 3, in the present embodiment, single group double-point double-throw switch 12 is provided with in switching device, switching device comprises 6 binding posts 11a, 11b, 11c, 11d, 11e, 11f, and convergent belt 9a, 9b, 9c, 9d are connected respectively to binding post 11a, 11b, 11e, 11f.
As seen from Figure 3, when double-point double-throw switch 12 closes, make 11a and 11c downwards, 11b and 11d connect respectively, now 9b and 9c conducting, the connected mode of solar cell string 8a and 8b is series connection, and the output voltage of assembly is higher in such cases, and output current is lower; When double-point double-throw switch 12 upwards closes, make 11c and 11e, 11d and 11f connect respectively, be i.e. 9a and 9c, 9b and 9d conducting respectively, now the connected mode of solar cell string 8a and 8b be parallel connection, assembly output voltage is lower in such cases, and output current is higher.
As can be seen here, the series and parallel connections in assembly between different solar cell string can be realized by the switch arranged in switching device, thus reach the object of adjusting part unit for electrical property parameters, this kind of method is simple and convenient, corresponding unit for electrical property parameters can be obtained according to various actual needs, expand the range of application of assembly.
Embodiments of the present invention are not limited thereto; according to foregoing of the present invention; according to the state of the art and knowledge; in conjunction with basic thought technology of the present invention; different combinations can be carried out to the number of the solar cell string number of assembly and switch; make the unit for electrical property parameters of assembly adjustable wider, these change or improvement should belong within this patent protection range.
Claims (5)
1. the solar module that a unit for electrical property parameters is adjustable, comprise the ultrawhite stacking gradually arrangement from top to bottom low iron toughened glass layer, one EVA layer, solar cell layer, 2nd EVA layer and backsheet layer, first layers of material is holistic laminate in high-temperature vacuum laminated according to said sequence, and then aluminum alloy frame and terminal box are installed, it is characterized in that: described solar cell layer comprises multiple solar cell string, solar battery sheet in each solar cell string is connected in series by welding, then by convergent belt, the positive pole of often going here and there and cathode output end are introduced terminal box, switching device and the multiple and series-parallel bypass diode of solar cell is provided with in described terminal box.
2. solar module as claimed in claim 1, is characterized in that: described switching device is provided with multiple binding post, is connected respectively with the positive pole of solar cell string with cathode output end.
3. solar module as claimed in claim 1, is characterized in that: described switching device is provided with single or multiple switch.
4. solar module as claimed in claim 3, is characterized in that: described switchtype is double-point double-throw switch, single-pole double-throw switch (SPDT), double-pole single throw or single-pole single-throw switch (SPST).
5. solar module as claimed in claim 1, is characterized in that: described cassettes is single or multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972500.6A CN105489687A (en) | 2015-12-23 | 2015-12-23 | Solar cell module with adjustable electrical performance parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972500.6A CN105489687A (en) | 2015-12-23 | 2015-12-23 | Solar cell module with adjustable electrical performance parameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105489687A true CN105489687A (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510972500.6A Pending CN105489687A (en) | 2015-12-23 | 2015-12-23 | Solar cell module with adjustable electrical performance parameters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105489687A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788218A (en) * | 2016-12-28 | 2017-05-31 | 南通美能得新能源科技股份有限公司 | A kind of many terminal box solar components |
| CN106847969A (en) * | 2017-03-03 | 2017-06-13 | 广东爱康太阳能科技有限公司 | The solar cell module of generated output high |
| CN109904240A (en) * | 2019-02-26 | 2019-06-18 | 江苏禾木传感技术有限公司 | Integrated intelligence photovoltaic module structure |
| CN111540803A (en) * | 2020-05-06 | 2020-08-14 | 通威太阳能(眉山)有限公司 | Solar cell module and manufacturing method thereof |
| CN109904240B (en) * | 2019-02-26 | 2024-06-04 | 瓦克控股(江苏)有限公司 | Integrated intelligent photovoltaic module structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201590424U (en) * | 2009-11-10 | 2010-09-22 | 南通美能得太阳能电力科技有限公司 | Semi-transparent blue solar battery component |
| CN102544174A (en) * | 2012-01-06 | 2012-07-04 | 南通美能得太阳能电力科技有限公司 | Solar cell assembly for increasing light energy utilization ratio |
| CN202855767U (en) * | 2012-09-10 | 2013-04-03 | 江苏核新太阳能电力有限公司 | Photovoltaic module with adjustable output electrical parameters |
| CN103247705A (en) * | 2012-02-14 | 2013-08-14 | 杜邦太阳能有限公司 | Solar panel |
-
2015
- 2015-12-23 CN CN201510972500.6A patent/CN105489687A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201590424U (en) * | 2009-11-10 | 2010-09-22 | 南通美能得太阳能电力科技有限公司 | Semi-transparent blue solar battery component |
| CN102544174A (en) * | 2012-01-06 | 2012-07-04 | 南通美能得太阳能电力科技有限公司 | Solar cell assembly for increasing light energy utilization ratio |
| CN103247705A (en) * | 2012-02-14 | 2013-08-14 | 杜邦太阳能有限公司 | Solar panel |
| CN202855767U (en) * | 2012-09-10 | 2013-04-03 | 江苏核新太阳能电力有限公司 | Photovoltaic module with adjustable output electrical parameters |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788218A (en) * | 2016-12-28 | 2017-05-31 | 南通美能得新能源科技股份有限公司 | A kind of many terminal box solar components |
| CN106847969A (en) * | 2017-03-03 | 2017-06-13 | 广东爱康太阳能科技有限公司 | The solar cell module of generated output high |
| CN109904240A (en) * | 2019-02-26 | 2019-06-18 | 江苏禾木传感技术有限公司 | Integrated intelligence photovoltaic module structure |
| CN109904240B (en) * | 2019-02-26 | 2024-06-04 | 瓦克控股(江苏)有限公司 | Integrated intelligent photovoltaic module structure |
| CN111540803A (en) * | 2020-05-06 | 2020-08-14 | 通威太阳能(眉山)有限公司 | Solar cell module and manufacturing method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |
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| RJ01 | Rejection of invention patent application after publication |