CN109244161B - Semi-rigid solar cell module structure and preparation method thereof - Google Patents
Semi-rigid solar cell module structure and preparation method thereof Download PDFInfo
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- CN109244161B CN109244161B CN201811087682.9A CN201811087682A CN109244161B CN 109244161 B CN109244161 B CN 109244161B CN 201811087682 A CN201811087682 A CN 201811087682A CN 109244161 B CN109244161 B CN 109244161B
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- 238000002360 preparation method Methods 0.000 title abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 57
- 239000006059 cover glass Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000012536 packaging technology Methods 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 claims 24
- 210000005056 cell body Anatomy 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 7
- 238000010248 power generation Methods 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004065 semiconductor 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
- H01L31/044—PV modules or arrays of single PV cells including bypass diodes
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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
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
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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
- 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
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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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a semi-rigid solar cell module structure and a preparation method thereof, wherein the module structure comprises: a solar cell, an interconnect sheet, a module connection sheet, a diode, and a cover glass; the solar cell comprises an upper glass cover plate and a lower glass cover plate, wherein the lower glass cover plate is of a special-shaped structure, the upper glass cover plate and the solar cell are of the same structure, and the solar cell is packaged between the upper glass cover plate and the lower glass cover plate; the solar cell, the diode and the module connection sheet are connected by an interconnection sheet. The solar cell module provided by the invention has high integration, reliable structure and small mechanical response, and the diode does not occupy the power generation area of the solar cell, thereby improving the power generation capacity of the solar cell array space and enhancing the application capacity of the solar cell array space.
Description
Technical Field
The invention relates to the technical field of space solar cell arrays, in particular to a design method of a semi-rigid solar cell circuit for a spacecraft.
Background
A solar cell is a semiconductor device that directly converts light energy into electric energy using a photovoltaic effect. A power supply system consisting of solar cell circuits can provide energy for a spacecraft, and a semi-rigid solar cell circuit is one of the solar cell circuits. The semi-rigid solar cell module is different from a flexible solar cell array and a semi-rigid solar cell array, a glass cover sheet is packaged on the double faces of the module, and the module is connected with a base plate or a substrate through the glass cover sheet. However, the solar cell and the bypass diode are connected in the same manner, and the bypass diode is usually placed at the corner of the solar cell, and the solar cell and the bypass diode are integrated together through the interconnection sheet unit. The technical scheme has two inherent defects, namely that the bypass diode occupies the power generation area of the solar cell, and the bypass diode is suspended at the corner for the semi-rigid cell module, so that the mechanical response is large, and the mechanical reliability of the cell circuit is reduced.
Wangxin 'semi-rigid solar cell circuit module hanging structure and method thereof' innovate invention from the connection mode of solar cell module and substrate. Schlemma 'a solar cell module fixing structure and fixing method of a stretched-string type semi-rigid plate' (CN 201510846403) proposed innovation from the stretched-string type semi-rigid solar cell array module fixing method. The invention is innovated from an internal interconnection structure of the semi-rigid solar cell module.
In order to effectively solve the problem of difficult connection between the semi-rigid solar cell and the bypass diode and realize high-reliability connection, the invention provides a semi-rigid solar cell module structure, and the existing defects are solved through a new structural design. The method is beneficial to the technical development of the high-power and high-load semi-rigid solar cell array.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to develop a structural design method of a semi-rigid solar cell module so as to solve the problem of high reliable connection of a space semi-solar cell array solar cell circuit.
In order to achieve the above object, the present invention provides a semi-rigid solar cell module structure comprising: a solar cell, an interconnect sheet, a module connection sheet, a diode, and a cover glass; the solar cell comprises an upper glass cover plate and a lower glass cover plate, wherein the lower glass cover plate is of a special-shaped structure, the upper glass cover plate and the solar cell are of the same structure, and the solar cell is packaged between the upper glass cover plate and the lower glass cover plate; the solar cell, the diode and the module connection sheet are connected by an interconnection sheet.
The special-shaped structure is different from a common cover plate rectangular structure and has a notch structure, and the diode is matched with the notch structure of the lower glass cover plate.
The same structure means that the upper glass cover plate completely covers the solar cell.
Preferably, the diode is a planar diode. The planar structure has several benefits: 1) the structure is matched with the special-shaped cover plate, so that the mechanical property is better; 2) the thickness of the module can be reduced, the thickness of the planar diode is the same as or similar to that of the special-shaped cover plate, and the overall configuration of the module is consistent with that of an external interface; sticking by using a module; 3) the plane type has larger heat dissipation area and better space environment adaptability.
Preferably, the interconnection sheet is a metal material for space, and the metal material is resistant to environments such as space irradiation, atomic oxygen, high and low temperatures, and the like.
Preferably, the interconnection sheet includes a first interconnection sheet connecting the N-pole of the solar cell and the module connection sheet, and a second interconnection sheet connecting the N-pole of the solar cell and the P-pole of the diode.
Preferably, the glass cover plate is made of cerium-doped glass.
Preferably, the lower glass cover plate is provided with a notch so as to expose the solar cell electrode.
Preferably, one end of the diode is connected with the N pole of the solar cell, the other end of the diode is connected with the P pole of the solar cell, and the diode is matched with the notch structure of the lower glass cover plate.
Preferably, the module connecting sheet is arranged above the lower glass cover sheet and protects the diode between the lower glass cover sheet and the solar cell. The assembly connecting sheet has the following functions: 1) as a connection interface between modules; 2) the diode is fixed and then protected, so that the diode is prevented from being separated from the back of the battery, and the damage of space electrons, proton irradiation and the like to the diode P \ N is prevented; 3) an integral module is formed, so that the integration degree of the integral module structure is higher.
The invention also provides a preparation method of the semi-rigid solar cell module structure, which comprises the following steps:
connecting an interconnection sheet and a cathode of a solar cell together and connecting the interconnection sheet and an anode of a diode together by a welding technology;
packaging the solar cell and the glass cover plate together by adopting a packaging technology, so that the solar cell is packaged between the upper glass cover plate and the lower glass cover plate;
thirdly, connecting the interconnecting piece and the assembly connecting piece together by adopting a welding technology;
and step four, connecting the anode of the solar cell and the cathode of the diode together by adopting a welding technology.
And step five, bending the component connecting sheet to the upper part of the lower glass cover sheet, and protecting the diode between the lower glass cover sheet and the solar cell to finish structural packaging.
The solar cell module provided by the invention has high integration, reliable structure and small mechanical response. The diode does not occupy the power generation area of the solar cell, and the power generation capacity of the solar cell array space is improved.
In a word, the invention effectively solves the problem of the protection connection of the battery circuit module, the structure has high integration, small mechanical response and reliable structural connection, and promotes the application progress of the semi-rigid solar battery array.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a semi-rigid solar cell circuit module provided by the present invention;
fig. 2 is a schematic diagram of a solar cell and diode connection circuit according to an embodiment of the present invention;
FIG. 3 is a view of a special-shaped cover glass for a solar cell circuit according to an embodiment of the present invention;
fig. 4 is a diagram illustrating an effect of connection between a solar cell and a diode according to an embodiment of the present invention;
fig. 5 is a diagram illustrating an assembly effect of a special-shaped cover glass (lower cover glass) diode for a solar cell, a solar cell and the like according to an embodiment of the present invention.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings of embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.
The present invention will now be further described by way of detailed description of preferred embodiments in accordance with the present invention.
As shown in fig. 1, the present invention provides a semi-rigid solar cell module structure composed of solar cells 2, interconnection sheets (5-1, 5-2), module connection sheets 4, diodes 6, and cover glass sheets. The glass cover plate comprises an upper glass cover plate 3 and a lower glass cover plate 1, the lower glass cover plate 1 is of a special-shaped structure, the upper glass cover plate 3 and the solar cell 2 are in the same structure, and the solar cell 2 is packaged between the upper glass cover plate 3 and the lower glass cover plate 1; the solar cell 2, the diode 6 and the module tab 4 are connected by the interconnection tabs (5-1, 5-2).
The solar cell module diode 6 is a planar diode.
The interconnection sheet has two types, one is used for connecting the N pole of the solar cell and a component connection sheet, such as an interconnection sheet 5-1, and the other is used for connecting the N pole of the solar cell and the P pole of the diode, such as an interconnection sheet 5-2; the planar diode N is directly connected with the solar cell P, so that intermediate interconnection links are reduced, the connection reliability is improved, the complexity of the process is reduced, the thickness of a connection part is reduced, and the weight is reduced.
The solar cell module has high integration, reliable structure and small mechanical response. The diode does not occupy the power generation area of the solar cell, and the power generation capacity of the solar cell array space is improved.
In some embodiments, the cerium-doped glass is used as the cover glass, and the interconnection sheet is a metal material for space use, and the semi-rigid solar cell module structure and the connection method provided by the invention specifically comprise the following working steps:
step one, connecting the interconnection sheets (5-1 and 5-2) with the cathode of the solar cell 2 by adopting a welding technology, and connecting the interconnection sheet 5-2 with the anode of the diode 6, as shown in figure 4;
step two, packaging the solar cell 2 with an upper glass cover plate 3 and a special-shaped glass cover plate 1 (a lower glass cover plate) by adopting a packaging technology, and packaging the solar cell 2 between the upper glass cover plate 3 and the special-shaped glass cover plate 1; the special-shaped glass cover plate 1 comprises a notch 1-1 and a cover plate body 1-2, see fig. 3, and the notch 1-1 is arranged to expose the electrode of the solar cell.
Thirdly, connecting the interconnecting pieces (5-1 and 5-2) and the component connecting piece 4 together by adopting a welding technology;
and step four, connecting the anode of the solar cell 2 and the cathode of the diode 6 together by adopting a welding technology.
And step five, bending the component connecting sheet 4 to the upper part of the special-shaped glass cover plate 1, and protecting the diode 6 between the special-shaped glass cover plate 1 and the solar cell 2 to finish structural packaging, wherein the structure is shown in fig. 5.
In conclusion, the structure effectively solves the problem of bypass protection connection of the solar cell through the design of the special-shaped glass cover plate 1, the diode 6, the component connecting sheet 4, the interconnecting sheet 5-2 and the like, has high integration, small mechanical response and reliable structural connection, and promotes the application progress of the semi-rigid solar cell array. Specifically, the P pole of the planar diode is connected with the solar cell N by using an interconnection sheet, and then the N pole of the planar diode is directly connected with the P pole of the solar cell to form a solar cell bypass protection circuit, as shown in fig. 2, the solar cell bypass protection diode is packaged; the planar diode tube is packaged between the special-shaped glass cover plate and the solar cell, and is protected by the component connecting sheet outside, the integral structure is high in integration level, the rigidity of the diode is high, and the deformation resistance of the connecting part is strong, so that the mechanical response is small.
The design method of the semi-rigid solar cell module structure provided by the invention can provide guarantee for engineering application of a semi-rigid solar cell array and provide a wide application market for a series of aircrafts such as low-orbit observation satellites, high-orbit satellites, space stations in China, Shenzhou airships, Tiangong series and the like. The technical innovation fills up the domestic blank and improves the application level of the semi-rigid solar cell array in China.
Those not described in detail in this specification are within the skill of the art. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A semi-rigid solar cell module structure, comprising: a solar cell, an interconnect sheet, a module connection sheet, a diode, and a cover glass; the solar cell comprises a solar cell body, a solar cell cover plate and a solar cell cover plate, wherein the solar cell body comprises a solar cell electrode and a cover plate, the cover plate comprises an upper cover plate and a lower cover plate, and the lower cover plate is of a special-shaped structure and is provided with a notch so as to expose the solar cell electrode; the upper glass cover plate has the same structure with the solar cell and can completely cover the solar cell; the solar cell is packaged between the upper glass cover plate and the lower glass cover plate; connecting the solar cell, the diode and the module connecting sheet through the interconnecting sheet; the interconnection sheet comprises a first interconnection sheet and a second interconnection sheet, the first interconnection sheet is used for connecting the N pole of the solar cell and the assembly connecting sheet, and the second interconnection sheet is used for connecting the N pole of the solar cell and the P pole of the diode; the N pole of the diode is connected with the P pole of the solar cell, and the diode is matched with the notch structure of the lower glass cover plate; the module connecting sheet is arranged above the lower glass cover sheet and protects the diode between the lower glass cover sheet and the solar cell.
2. The semi-rigid solar cell module structure of claim 1 wherein the diode is a planar diode.
3. The semi-rigid solar cell module structure of claim 1 wherein the interconnect sheet is a space metal material.
4. The semi-rigid solar cell module structure of claim 1 wherein the cover glass is cerium-doped glass.
5. A method of fabricating a semi-rigid solar cell module structure according to any of claims 1-4, characterized in that the method comprises:
connecting an interconnection sheet and a cathode of a solar cell together and connecting the interconnection sheet and an anode of a diode together by a welding technology;
packaging the solar cell and the glass cover plate together by adopting a packaging technology, so that the solar cell is packaged between the upper glass cover plate and the lower glass cover plate;
thirdly, connecting the interconnecting piece and the assembly connecting piece together by adopting a welding technology;
fourthly, connecting the P pole of the solar cell and the N pole of the diode together by adopting a welding technology;
and step five, bending the component connecting sheet to the upper part of the lower glass cover sheet, and protecting the diode between the lower glass cover sheet and the solar cell to finish structural packaging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811087682.9A CN109244161B (en) | 2018-09-18 | 2018-09-18 | Semi-rigid solar cell module structure and preparation method thereof |
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| CN201811087682.9A CN109244161B (en) | 2018-09-18 | 2018-09-18 | Semi-rigid solar cell module structure and preparation method thereof |
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| CN109244161B true CN109244161B (en) | 2020-08-11 |
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| CN111900225B (en) * | 2020-06-30 | 2021-11-16 | 上海空间电源研究所 | Space solar cell array interconnection structure, solar cell array and forming method thereof |
| CN112146804B (en) * | 2020-08-25 | 2022-04-12 | 北京卫星制造厂有限公司 | String tensioning method of string tensioning type semi-rigid substrate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2931181A1 (en) * | 2008-05-19 | 2009-11-20 | Clipsol Sa | Semi-rigid chassis structure for assembling modular photovoltaic solar sensors on frame of roof of building, has tabs located under sensors to hook sensors directly on purlins, and swing bar whose rigidity compensates flexibility of sensors |
| CN104241419A (en) * | 2014-08-28 | 2014-12-24 | 上海空间电源研究所 | Thin film type semi-rigid solar cell array and manufacturing method thereof |
| CN106549072A (en) * | 2016-12-06 | 2017-03-29 | 上海空间电源研究所 | Space static electricity protects solar battery array interconnection package structure and method |
| CN106684183A (en) * | 2016-12-28 | 2017-05-17 | 中国电子科技集团公司第十八研究所 | Solar cell module for a strung semi-rigid panel |
| CN206672948U (en) * | 2017-03-30 | 2017-11-24 | 上海晶澳太阳能科技有限公司 | A kind of solar energy solar double-glass assemblies and matched terminal box |
-
2018
- 2018-09-18 CN CN201811087682.9A patent/CN109244161B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2931181A1 (en) * | 2008-05-19 | 2009-11-20 | Clipsol Sa | Semi-rigid chassis structure for assembling modular photovoltaic solar sensors on frame of roof of building, has tabs located under sensors to hook sensors directly on purlins, and swing bar whose rigidity compensates flexibility of sensors |
| CN104241419A (en) * | 2014-08-28 | 2014-12-24 | 上海空间电源研究所 | Thin film type semi-rigid solar cell array and manufacturing method thereof |
| CN106549072A (en) * | 2016-12-06 | 2017-03-29 | 上海空间电源研究所 | Space static electricity protects solar battery array interconnection package structure and method |
| CN106684183A (en) * | 2016-12-28 | 2017-05-17 | 中国电子科技集团公司第十八研究所 | Solar cell module for a strung semi-rigid panel |
| CN206672948U (en) * | 2017-03-30 | 2017-11-24 | 上海晶澳太阳能科技有限公司 | A kind of solar energy solar double-glass assemblies and matched terminal box |
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