CN103560160A - Solar battery module - Google Patents
Solar battery module Download PDFInfo
- Publication number
- CN103560160A CN103560160A CN201310543706.8A CN201310543706A CN103560160A CN 103560160 A CN103560160 A CN 103560160A CN 201310543706 A CN201310543706 A CN 201310543706A CN 103560160 A CN103560160 A CN 103560160A
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- semiconductor
- oxide
- metal
- battery
- converter
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- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 239000004065 semiconductor Substances 0.000 claims description 49
- 230000001012 protector Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract description 8
- 210000004027 cell Anatomy 0.000 description 15
- 210000003850 cellular structure Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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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
- H01L31/02—Details
- H01L31/02016—Circuit arrangements of general character for the devices
- H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02021—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier for solar cells
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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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- Engineering & Computer Science (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses a solar battery module which comprises a battery pack body, a battery protective circuit and a junction box. The battery protective circuit is arranged in the battery pack body or the junction box, a battery junction port is formed in the junction box and electrically connected with the battery pack body, and the battery protective circuit comprises a charge pump, a charge pump protective device and a photovoltaic battery pack bypass switch. An MOS tube Q1, a capacitor C1 and an MOS tube Q2 in the battery protective circuit are powered on and powered off to enable the ratio of the powered-on time of the MOS tube Q1 in the battery protective circuit to the cutting-off time of the MOS tube Q1 in the battery protective circuit to be higher than 95%, the average power dissipation is much lower than that of a traditional bypass diode, the influences of the high temperature of a bypass tube on the solar battery module are reduced, and the aims of improving the electrical property and the safety performance of the solar battery module are accordingly achieved.
Description
Technical field
The present invention relates to area of solar cell, particularly, relate to a kind of solar module.
Background technology
At present, aggravation along with environmental pollution, clean energy resource obtains social extensive concern, and the important carrier that solar cell utilizes as solar energy, in life, used in a large number, but present photovoltaic cell component in use, for prevent cell piece in assembly due to quality do not mate or part battery be blocked occur heating that hot spot effect causes battery component with or damage, minimizing is due to the impact of poor quality XOR environment for use on assembly power output, a bypass diode need to be on a plurality of series-connected cells in parallel, thereby guarantee useful life and the power output of solar cell.But there is very large hidden danger because heating and heat dissipation problem make the performance of battery component and fail safe in existing bypass diode.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of solar module, to realize the advantage that improves solar cell performance and used life.
For achieving the above object, the technical solution used in the present invention is:
, comprising battery pack body, battery protecting circuit and terminal box, described battery protecting circuit is arranged in battery pack body or terminal box, and battery wire port is set in terminal box, and this Wiring port is electrically connected to battery pack body,
Described battery protecting circuit comprises, charge pump, charge pump protector and photovoltaic cell group by-pass switch,
Described charge pump consists of converter U1 and capacitor C 1, the power supply ground VSS end ground connection of this converter U1, and pump capacitor C PC+ end and one end of capacitor C 1 of converter U1 join, the other end ground connection of this capacitor C 1;
Described photovoltaic cell group by-pass switch consists of metal-oxide-semiconductor Q1 and diode D1, the source electrode of described metal-oxide-semiconductor Q1 is electrically connected to the anode of diode D1, the drain electrode of metal-oxide-semiconductor Q1 is connected with the cathodic electricity of diode D1, and the source electrode of described metal-oxide-semiconductor Q1 is electrically connected to the power supply input VIN end of above-mentioned converter U1, the drain electrode of metal-oxide-semiconductor Q1 is electrically connected to charge pump protector, and the grid of metal-oxide-semiconductor Q1 is electrically connected to the control output CTR end of converter U1;
Described charge pump protector is metal-oxide-semiconductor Q2; the source electrode of this metal-oxide-semiconductor Q2 is electrically connected to the power supply of above-mentioned converter U1 ground VSS end; the grid of metal-oxide-semiconductor Q2 is electrically connected to the out-put supply VOUT end of converter U1, and the drain electrode of metal-oxide-semiconductor Q2 is electrically connected to the drain electrode of above-mentioned metal-oxide-semiconductor Q1.
Further, described battery protecting circuit can be arranged in above-mentioned battery pack body or in terminal box by the mode of welding.
Further, described battery protecting circuit can be together with battery pack body laminating packaging.
Technical scheme of the present invention has following beneficial effect:
Technical scheme of the present invention; battery protecting circuit by the technical program replaces conventional bypass diode now; by controlling conducting and the cut-off of photovoltaic cell component by-pass switch metal-oxide-semiconductor Q1; the photovoltaic cell protective circuit metal-oxide-semiconductor Q1 ON time making is greater than 95% with the ratio of turn-off time; make average power consumption much smaller than traditional bypass diode; reduced due to the damage of temperature problem to photovoltaic cell component, reached the object that improves photovoltaic cell electrical property and stability.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the solar module schematic diagram described in the embodiment of the present invention;
Fig. 2 is the electrical circuit diagram of battery protecting circuit in the solar module described in the embodiment of the present invention;
Fig. 3 is the voltage oscillogram of the control output end of the battery protecting circuit converter U1 described in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As depicted in figs. 1 and 2, a kind of solar module, comprises battery pack body, battery protecting circuit and terminal box; battery protecting circuit is arranged in battery pack body or in terminal box; battery wire port is set in terminal box, and this Wiring port is electrically connected to battery pack body
Battery protecting circuit comprises, charge pump, charge pump protector and photovoltaic cell group by-pass switch,
Charge pump consists of converter U1 and capacitor C 1, the power supply ground VSS end ground connection of this converter U1, and pump capacitor C PC+ end and one end of capacitor C 1 of converter U1 join, the other end ground connection of this capacitor C 1;
Photovoltaic cell group by-pass switch consists of metal-oxide-semiconductor Q1 and diode D1, the source electrode of metal-oxide-semiconductor Q1 is electrically connected to the anode of diode D1, the drain electrode of metal-oxide-semiconductor Q1 is connected with the cathodic electricity of diode D1, and the source electrode of metal-oxide-semiconductor Q1 is electrically connected to the power supply input VIN end of above-mentioned converter U1, the drain electrode of metal-oxide-semiconductor Q1 is electrically connected to charge pump protector, and the grid of metal-oxide-semiconductor Q1 is electrically connected to the control output CTR end of converter U1;
Charge pump protector is metal-oxide-semiconductor Q2, and the source electrode of this metal-oxide-semiconductor Q2 is electrically connected to the power supply of above-mentioned converter U1 ground VSS end, and the grid of metal-oxide-semiconductor Q2 is electrically connected to the out-put supply VOUT end of converter U1, and the drain electrode of metal-oxide-semiconductor Q2 is electrically connected to the drain electrode of above-mentioned metal-oxide-semiconductor Q1.
Wherein, battery protecting circuit can be arranged in above-mentioned battery pack body or in terminal box by the mode of welding.Battery protecting circuit can be together with battery pack body laminating packaging.
Battery protecting circuit is received respectively negative pole and the positive terminal of photovoltaic cell group.
Its specific works principle is as shown in Figure 3:
(1) under photovoltaic cell group normal operation, grid G and the converter U1 of this circuit metal-oxide-semiconductor Q1 join, converter U1 is because supply voltage can not be oppositely its pump capacitor charging, its output VOUT is equated with its power supply ground VSS terminal voltage, the gate source voltage Vgs of metal-oxide-semiconductor Q2 can not reach the threshold voltage Vth of metal-oxide-semiconductor Q2 and make metal-oxide-semiconductor Q2 in off state like this, converter U1 does not work, so metal-oxide-semiconductor Q1 is also in off state, not conducting between the anode and cathode of circuit, only has very little leakage current, when temperature 25 is spent, be less than 2uA, 125 are less than 20uA while spending.
(2) in photovoltaic cell group, occur in hot spot effect or other situation, diode D1 forms forward voltage (being the junction voltage of diode), according to the at this moment voltage of normal battery and the situation of external load, voltage is generally between 0.4V ~ 1V, and metal-oxide-semiconductor Q2 relies on its body diode forward small voltage and little On current; Now, the VIN of converter U1 end obtains forward voltage with VSS end, start to capacitor C 1 charging, and along with the rising of capacitor C 1 voltage, the complete conducting of metal-oxide-semiconductor Q2, capacitor C 1 is full of electricity fast; In this stage, the CTR of converter U1 end is low level, not conducting of metal-oxide-semiconductor Q1; When capacitor C 1 is full of electricity, converter U1 stops charging, the control end CTR output high level of converter U1 makes metal-oxide-semiconductor Q1 conducting, the voltage of the drain-source end of metal-oxide-semiconductor Q1 just drops to approximately tens millivolts of very little values to more than 100 millivolts, the voltage that is anode tap and cathode terminal is worth for this reason, little several times to tens times during than diode current flow, and its ON time is generally greater than 95% with the ratio of turn-off time, so its average power consumption is much smaller than traditional bypass diode.When capacitor C 1 both end voltage drops to certain certain value, the control end CTR of converter U1 end is turned off, output low level, and metal-oxide-semiconductor Q1 turn-offs, and now only has diode forward conducting, and converter U1 starts again to capacitor C 1 charging.So repeat, the average pressure drop of anode and cathode terminal is declined greatly, save electric energy, the temperature rise of circuit itself is simultaneously compared with conventional diode, and temperature declines greatly, and reliability and the fail safe of device itself are greatly improved.
Work diode while being metal-oxide-semiconductor Q1 shutoff because of diode D1, electric current is larger, and leakage current is little.Metal-oxide-semiconductor Q2 in this circuit is the protection tube of converter U1; when battery pack works, turn-off, make converter U1 avoid battery voltage (being reverse high voltage to this circuit) and cause damage, battery pack to occur when abnormal; metal-oxide-semiconductor conducting, makes converter U1 normal operation.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a solar module, is characterized in that, comprises battery pack body, battery protecting circuit and terminal box; described battery protecting circuit is arranged in battery pack body or in terminal box; battery wire port is set in terminal box, and this Wiring port is electrically connected to battery pack body
Described battery protecting circuit comprises, charge pump, charge pump protector and photovoltaic cell group by-pass switch,
Described charge pump consists of converter U1 and capacitor C 1, the power supply ground VSS end ground connection of this converter U1, and pump capacitor C PC+ end and one end of capacitor C 1 of converter U1 join, the other end ground connection of this capacitor C 1;
Described photovoltaic cell group by-pass switch consists of metal-oxide-semiconductor Q1 and diode D1, the source electrode of described metal-oxide-semiconductor Q1 is electrically connected to the anode of diode D1, the drain electrode of metal-oxide-semiconductor Q1 is connected with the cathodic electricity of diode D1, and the source electrode of described metal-oxide-semiconductor Q1 is electrically connected to the power supply input VIN end of above-mentioned converter U1, the drain electrode of metal-oxide-semiconductor Q1 is electrically connected to charge pump protector, and the grid of metal-oxide-semiconductor Q1 is electrically connected to the control output CTR end of converter U1;
Described charge pump protector is metal-oxide-semiconductor Q2; the source electrode of this metal-oxide-semiconductor Q2 is electrically connected to the power supply of above-mentioned converter U1 ground VSS end; the grid of metal-oxide-semiconductor Q2 is electrically connected to the out-put supply VOUT end of converter U1, and the drain electrode of metal-oxide-semiconductor Q2 is electrically connected to the drain electrode of above-mentioned metal-oxide-semiconductor Q1.
2. solar module according to claim 1, is characterized in that, described battery protecting circuit is arranged in above-mentioned battery pack body or in terminal box by the mode of welding.
3. solar module according to claim 1 and 2, is characterized in that, described battery protecting circuit laminating packaging together with battery pack body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543706.8A CN103560160B (en) | 2013-11-06 | 2013-11-06 | Solar module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543706.8A CN103560160B (en) | 2013-11-06 | 2013-11-06 | Solar module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103560160A true CN103560160A (en) | 2014-02-05 |
| CN103560160B CN103560160B (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310543706.8A Expired - Fee Related CN103560160B (en) | 2013-11-06 | 2013-11-06 | Solar module |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749742A (en) * | 2017-11-17 | 2018-03-02 | 无锡工赢智能科技有限公司 | A kind of solar energy bypass diode module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022258A (en) * | 2006-02-14 | 2007-08-22 | 迪尔阿扣基金两合公司 | Photovoltaic system having a solar module |
| CN101180781A (en) * | 2005-05-24 | 2008-05-14 | 弗兰霍菲尔运输应用研究公司 | Circuit breaker for a solar module |
| CN102916056A (en) * | 2012-09-25 | 2013-02-06 | 谢可勋 | Solar battery pack protection circuit, solar junction box and solar power generation system |
| CN203574598U (en) * | 2013-11-06 | 2014-04-30 | 无锡清莲新能源科技有限公司 | Solar battery assembly |
-
2013
- 2013-11-06 CN CN201310543706.8A patent/CN103560160B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101180781A (en) * | 2005-05-24 | 2008-05-14 | 弗兰霍菲尔运输应用研究公司 | Circuit breaker for a solar module |
| CN101022258A (en) * | 2006-02-14 | 2007-08-22 | 迪尔阿扣基金两合公司 | Photovoltaic system having a solar module |
| CN102916056A (en) * | 2012-09-25 | 2013-02-06 | 谢可勋 | Solar battery pack protection circuit, solar junction box and solar power generation system |
| CN203574598U (en) * | 2013-11-06 | 2014-04-30 | 无锡清莲新能源科技有限公司 | Solar battery assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749742A (en) * | 2017-11-17 | 2018-03-02 | 无锡工赢智能科技有限公司 | A kind of solar energy bypass diode module |
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| Publication number | Publication date |
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| CN103560160B (en) | 2016-03-23 |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20170707 Address after: 100020, room 1, unit 12, 8 Chaoyang Road, Beijing, Chaoyang District 1222, China Patentee after: Beijing Zhongke Qing Hui Information Technology Co., Ltd. Address before: 214000 Jiangsu New District of Wuxi City Linghu Road No. 200 Chinese Sensor Network International Innovation Park building E Patentee before: WUXI LOTUSOLAR NEW ENERGY TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Tianwan Inventor before: Zhu Yu Inventor before: Li Tianwan |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180320 Address after: 200131 Shanghai city China (Shanghai) Free Trade Zone North Fute Road No. 211 room 368 302 parts Patentee after: Yongding (Shanghai) Energy Technology Co Ltd Address before: 100020, room 1, unit 12, 8 Chaoyang Road, Beijing, Chaoyang District 1222, China Patentee before: Beijing Zhongke Qing Hui Information Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20181106 |