CN105470326A - High-reliability solar cell module - Google Patents
High-reliability solar cell module Download PDFInfo
- Publication number
- CN105470326A CN105470326A CN201510923193.2A CN201510923193A CN105470326A CN 105470326 A CN105470326 A CN 105470326A CN 201510923193 A CN201510923193 A CN 201510923193A CN 105470326 A CN105470326 A CN 105470326A
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- Prior art keywords
- diode
- solar module
- improving reliability
- reliability according
- solar cell
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- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
-
- 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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- 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 high-reliability solar cell module. The high-reliability solar cell module comprises solar cell pieces, wherein the solar cell pieces are connected in series, and are arranged in m columns and n rows; a diode group is connected in parallel between the first cell piece in each odd number column and the first cell piece in the adjacent column of the odd number plus one; and the diode group consists of x diodes that are connected in parallel, wherein x is not less than 2. According to the high-reliability solar cell module, at least a diode is connected adjacent to each diode in parallel; therefore, when one diode becomes invalid, the diode connected with the invalid diode in parallel can still play the function of a bypass diode; and supposed that the invalidation proportion of a common bypass diode is 0.1%, and the invalidation proportion of the bypass diode in the solar cell module provided by the invention is 0.01%.
Description
Technical field
The present invention relates to solar module technical field, be specially a kind of solar module improving reliability.
Background technology
Along with the development of people's life, the application of photovoltaic module is more and more extensive.In actual applications, photovoltaic module is composed in series by some cell pieces.In order to reach higher photoelectric conversion efficiency, each the block cell piece in same assembly all must have similar characteristic.In use, may occur that one or a Battery pack do not mate, as shadowed layer, there is crackle in cell piece, inner Joint failure etc., these batteries will be taken as other energy having the solar module of illumination to produce of load consumption, and these fail batteries will generate heat, and are called hot spot effect.Because local local temperature hot spot effect occurring serious may be higher, cause assembly regional area to burn or form blackening, the permanent damage such as solder joint melts, aging, the glass rupture of encapsulating material, welding corrosion, cause great hidden danger to the safety and reliability of assembly.Therefore assembly all adopts the mode installing bypass diode additional to reduce the impact of hot spot effect at present.
In prior art, the assembly of 60 cell pieces has three bypass diodes.As shown in Figure of description Fig. 1.But the operational environment of assembly is generally open air, and working life is 25 years, and bypass diode has higher probability to lose efficacy, and when it lost efficacy, assembly will face higher risk.
Summary of the invention
Object of the present invention is exactly defect for above-mentioned existence and provides a kind of solar module improving reliability.Side at least one diode in parallel again of the present invention's each diode in routine techniques, when one of them diode fails, the diode in parallel with it still will can play the effect of bypass diode.Suppose that the ratio of routine bypass diode fails is one thousandth, then in assembly of the present invention, the ratio that bypass diode lost efficacy is 1,000,000/.
A kind of solar module technical scheme improving reliability of the present invention is, comprise solar battery sheet, cell piece series connection is in the capable arrangement of m row n, a diode group in parallel between the first cell piece that the odd number that each odd column is adjacent adds row, diode group is made up of x diodes in parallel, and x is not less than 2.
Diode group is made up of two diodes in parallels, and two diode models are consistent.
Wherein m is 6, n is 10; Or m is 6, n is 12.
Described diode can be Schottky diode or metal-oxide-semiconductor.
The negative pole of the positive pole connection circuit of described diode, the positive pole of the negative pole connection circuit of diode, under normal circumstances, diode is in reverse-bias state.
Described diode is withstand voltage is greater than 20V.
The rated current of described diode is greater than 10A.
The reverse leakage current of described diode is less than 0.5A.
The forward conduction voltage of described diode is 0.1 to 0.5V.
A kind of solar module beneficial effect improving reliability of the present invention is: side at least one diode in parallel again of the present invention's each diode in routine techniques, when one of them diode fails, the diode in parallel with it still will can play the effect of bypass diode.Suppose that the ratio of routine bypass diode fails is one thousandth, then in assembly of the present invention, the ratio that bypass diode lost efficacy is 1,000,000/.
accompanying drawing illustrates:
Figure 1 shows that the basic structure schematic diagram of prior art;
Figure 2 shows that basic structure schematic diagram of the present invention.
In figure, 1. solar battery sheet, 2. diode.
embodiment:
In order to understand the present invention better, describe technical scheme of the present invention in detail below in conjunction with accompanying drawing, but the present invention is not limited thereto.
Embodiment 1
A kind of solar module improving reliability of the present invention, comprise solar battery sheet 1, cell piece series connection is in 6 row 10 row arrangements, according to series sequence, solar battery sheet 1 is named according to one to six ten, wherein, first is composed in parallel by two diodes 2 with the 30 a slice, the 40 a slice diode group in parallel with between the 50 a slice cell piece, diode group with the tenth a slice, the 20 a slice, and two diode 2 models are consistent.
Described diode 2 can be Schottky diode or metal-oxide-semiconductor.
The negative pole of the positive pole connection circuit of described diode 2, the positive pole of the negative pole connection circuit of diode 2, under normal circumstances, diode 2 is in reverse-bias state.
Described diode 2 is withstand voltage is greater than 20V.
The rated current of described diode 2 is greater than 10A.
The reverse leakage current of described diode 2 is less than 0.5A.
The forward conduction voltage of described diode 2 is 0.1 to 0.5V.
Embodiment 2
A kind of solar module improving reliability of the present invention, comprise solar battery sheet 1, cell piece series connection is in 6 row 12 row arrangements, a diode group in parallel between the first cell piece that the odd number that each odd column is adjacent adds row, diode group is composed in parallel by two diodes 2, and two diode 2 models are consistent.
Described diode 2 can be Schottky diode or metal-oxide-semiconductor.
The negative pole of the positive pole connection circuit of described diode 2, the positive pole of the negative pole connection circuit of diode 2, under normal circumstances, diode 2 is in reverse-bias state.
Described diode 2 is withstand voltage is greater than 20V.
The rated current of described diode 2 is greater than 10A.
The reverse leakage current of described diode 2 is less than 0.5A.
The forward conduction voltage of described diode 2 is 0.1 to 0.5V.
Claims (9)
1. one kind is improved the solar module of reliability, it is characterized in that, comprise solar battery sheet, cell piece series connection is in the capable arrangement of m row n, a diode group in parallel between the first cell piece that the odd number that each odd column is adjacent adds row, diode group is made up of x diodes in parallel, and x is not less than 2.
2. a kind of solar module improving reliability according to claim 1, is characterized in that, diode group is made up of two diodes in parallels, and two diode models are consistent.
3. a kind of solar module improving reliability according to claim 1, is characterized in that, wherein m is 6, n is 10; Or m is 6, n is 12.
4. a kind of solar module improving reliability according to claim 1, is characterized in that, described diode can be Schottky diode or metal-oxide-semiconductor.
5. a kind of solar module improving reliability according to claim 1, is characterized in that, the negative pole of the positive pole connection circuit of described diode, and the positive pole of the negative pole connection circuit of diode, under normal circumstances, diode is in reverse-bias state.
6. a kind of solar module improving reliability according to claim 1, is characterized in that, described diode is withstand voltage is greater than 20V.
7. a kind of solar module improving reliability according to claim 1, it is characterized in that, the rated current of described diode is greater than 10A.
8. a kind of solar module improving reliability according to claim 1, it is characterized in that, the reverse leakage current of described diode is less than 0.5A.
9. a kind of solar module improving reliability according to claim 1, is characterized in that, the forward conduction voltage of described diode is 0.1 to 0.5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923193.2A CN105470326A (en) | 2015-12-14 | 2015-12-14 | High-reliability solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923193.2A CN105470326A (en) | 2015-12-14 | 2015-12-14 | High-reliability solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105470326A true CN105470326A (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510923193.2A Pending CN105470326A (en) | 2015-12-14 | 2015-12-14 | High-reliability solar cell module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105470326A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202135082U (en) * | 2011-06-21 | 2012-02-01 | 恒光（福建）光电科技有限公司 | Solar cell panel circuit |
| CN102707187A (en) * | 2012-06-11 | 2012-10-03 | 江苏新源太阳能科技有限公司 | Short circuit caution device of solar panel |
| CN202473975U (en) * | 2012-02-10 | 2012-10-03 | 上海晶澳太阳能科技有限公司 | A junction box of a solar battery pack |
| CN104900734A (en) * | 2015-06-16 | 2015-09-09 | 江苏东昇光伏科技有限公司 | Solar battery module and preparation method thereof |
-
2015
- 2015-12-14 CN CN201510923193.2A patent/CN105470326A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202135082U (en) * | 2011-06-21 | 2012-02-01 | 恒光（福建）光电科技有限公司 | Solar cell panel circuit |
| CN202473975U (en) * | 2012-02-10 | 2012-10-03 | 上海晶澳太阳能科技有限公司 | A junction box of a solar battery pack |
| CN102707187A (en) * | 2012-06-11 | 2012-10-03 | 江苏新源太阳能科技有限公司 | Short circuit caution device of solar panel |
| CN104900734A (en) * | 2015-06-16 | 2015-09-09 | 江苏东昇光伏科技有限公司 | Solar battery module and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |
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| RJ01 | Rejection of invention patent application after publication |