CN102255570A - Junction box for solar cell module - Google Patents
Junction box for solar cell module Download PDFInfo
- Publication number
- CN102255570A CN102255570A CN2011102015934A CN201110201593A CN102255570A CN 102255570 A CN102255570 A CN 102255570A CN 2011102015934 A CN2011102015934 A CN 2011102015934A CN 201110201593 A CN201110201593 A CN 201110201593A CN 102255570 A CN102255570 A CN 102255570A
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- Prior art keywords
- cell panel
- cell panels
- switch
- checkout gear
- electronic switch
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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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- Photovoltaic Devices (AREA)
Abstract
The invention discloses a junction box for a solar cell module, which comprises a plurality of cell panels connected in series. Each cell panel is connected in parallel with a corresponding electronic switch; each electronic switch comprises an electric switch, a detecting device and a control processing unit; each detecting device is provided with monitoring points connected with both ends of the corresponding cell panel; and when the detecting devices detect that the corresponding cell panels are under abnormal conditions through the corresponding monitoring points, the corresponding control processing devices control to switch on the corresponding electric switches through electric signals so that other cell panels are positioned in a normal series circuit. Due to the adoption of the structure and the intelligent electronic switches, when the cell panels go wrong, the corresponding electronic switches automatically work, so that the cell panels which go wrong are automatically bypassed, and under the working condition of the electronic switches, a great amount of energy loss and heat dissipation caused by a large current cannot be generated. Under the condition that the cell panels are normal, reverse leakage currents are reduced, so that the power generation energy of the solar cell panels is saved.
Description
Technical field
The present invention relates to a kind of terminal box, relate in particular to the terminal box that a kind of solar module is used.
Background technology
At present, the terminal box technology used of traditional solar module mainly contains following two kinds: 1, a kind of for not using the bypass setting; 2, use bypass diode;
But all there is shortcoming to a certain degree in these two kinds of terminal boxes.
In case the terminal box cell panel that does not use the solar module of bypass setting to use damages, the entire cell plate array all can't be worked, and need keep in repair or change the monoblock solar cell, causes user's inconvenience.
The terminal box that the solar module of use bypass diode is used will be passed through big electric current under the cell panel abnormality, because the internal resistance of diode itself causes diode that a large amount of power losss is arranged, produce a large amount of heat, causes terminal box to be burnt.
Use the solar battery connecting box of traditional inserting mode, the processing technology complexity, so reliability is low, is difficult to useful life guarantee.
Summary of the invention
The purpose of this invention is to provide the terminal box that solar module is used, it still can continue normal power generation when being used for making the solar panel piece cell panel of cascade to break down, and its control mode intelligence, energy-conservation, zero loss.
For achieving the above object, the invention provides the terminal box that a kind of solar module is used, it comprises the cell panel that polylith is connected mutually and is provided with, a corresponding electronic switch in parallel on each cell panel, described electronic switch comprises electric switch, checkout gear and control and treatment device, described checkout gear has the monitoring point that links to each other with corresponding cell panel two ends, when checkout gear does not detect corresponding cell panel when unusual by the monitoring point, described electric switch disconnects so that this cell panel continues operate as normal; When checkout gear detected corresponding cell panel and abnormal conditions occur by the monitoring point, described control and treatment device was controlled described electric switch by the signal of telecommunication and is connected so that other cell panel is in the normal series circuit.
Preferably, described checkout gear and described control and treatment device is integrated is arranged on the same chip.
Preferably, electronic switch adopts the surface mounting technology fixed sealing to be loaded in the terminal box.
The present invention adopts above structure, has the following advantages:
1. under the situation that wherein cell panel breaks down, do not influence the operate as normal of all the other cell panels;
2. what use in this terminal box is the electronic switch of high-performance zero loss, replaces traditional diode, thereby the extremely low reverse leakage current of realization has reduced under the conventional diode mode loss to the solar panel generating efficiency;
3. employing intelligent electronic switch, therefore after cell panel breaks down, electronic switch automaticallyes switch, bypass and unusual cell panel occurs, electronic switch can be realized low conduction loss, thereby saved the energy loss of solar module, guaranteed the safety of solar module simultaneously, and the hot blast danger that reduces switch protection part itself, conduction impedance and thermal loss are extremely low, thereby improved the generating efficiency of solar panel, also relative simultaneously diode mode has improved the reliability of system works;
4. employing surface mounting technology, the terminal box reliable in quality is stable, and than traditional junction box structure, the present invention is simple in structure, and cost is low;
5. can directly electronic switch be integrated in solar components inside, make full use of the characteristics of electronic switch high reliability and low thermal losses.The terminal box design is exempted from realization.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Accompanying drawing 2 is structural representations of electronic switch among the present invention.
In the accompanying drawing: 1, cell panel; 2, electronic switch; 21, monitoring point; 22, often drive electric switch; 23, monitoring and control and treatment chip.
Embodiment
Below in conjunction with one of accompanying drawing 1-2 preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be those skilled in the art will recognize that.
As shown in Figure 1, the terminal box that a kind of solar module is used, it comprises the cell panel 1 that polylith is connected mutually and is provided with, a corresponding electronic switch 2 in parallel on each cell panel 1, described electronic switch 2 comprises electric switch, checkout gear and control and treatment device, described checkout gear has the monitoring point 21 that links to each other with corresponding cell panel 1 two ends, when checkout gear does not detect corresponding cell panel 1 when unusual by monitoring point 21, described electric switch disconnects so that this cell panel 1 continues operate as normal; When checkout gear detected corresponding cell panel 1 and abnormal conditions occur by monitoring point 21, described control and treatment device was controlled described electric switch by the signal of telecommunication and is connected so that other cell panel 1 is in the normal series circuit.
Described checkout gear and described control and treatment device is integrated is arranged on the same chip.
Electronic switch adopts the surface mounting technology fixed sealing to be loaded in the terminal box.
In the embodiments of the invention, as shown in Figure 1, the terminal box that a kind of solar module is used, it comprises the cell panel 1 that polylith is connected mutually and is provided with, a corresponding electronic switch 2 in parallel on each cell panel 1.
As shown in Figure 2, each electronic switch 2 comprises often opens electric switch 22 and monitoring and control and treatment chip 23, is integrated with checkout gear and control and treatment device on this monitoring and the control and treatment chip 23.
Checkout gear has the monitoring point 21 that links to each other with the two ends of the cell panel 1 of this electronic switch 2 corresponding parallel connections.
The control and treatment device can be handled and control often driving electric switch 22 according to the detected signal data of checkout gear, promptly often drives electric switch 22 and disconnects or making operation.Be in when closing off state when often opening to establish by cable, corresponding cell panel 1 is connected in the entire circuit; When often driving electric switch 22 and be in on-state, often drive electric switch 22 and be connected in the entire circuit, and its resistance is almost nil.
When checkout gear does not detect cell panel 1 unusual by monitoring point 21, often to drive electric switch 22 and keep off states, this cell panel 1 is connected in the entire circuit and operate as normal.
When checkout gear detects cell panel 1 unusual by monitoring point 21, the control and treatment device is often driven electric switch 22 by signal of telecommunication control and is kept on-state, this is often driven electric switch 22 and is connected in the entire circuit, unusual cell panel 1 occurs and quit work, entire circuit keeps open circuit unaffected substantially.
In addition, electronic switch 2 adopts the surface mounting technology fixed sealing to be loaded in the terminal box.
The English name of surface mounting technology is SMT(Surface Mounted Technology).Packaging density height, the electronic product volume of SMT are little, in light weight, and the volume and weight of surface mount elements has only about 1/10 of traditional inserting element, generally adopt after the SMT electronic product volume-diminished 40% ~ 60%, weight saving 60% ~ 80%.SMT reliability height, antivibration ability are strong.The welding point defect rate is low.High frequency characteristics is good.Electromagnetism and radio frequency interference have been reduced.Easily be automated, enhance productivity.Reduce cost and reach 30% ~ 50%.Save material, the energy, equipment, manpower, time etc.
The present invention adopts above structure, has the following advantages:
1. under the situation that wherein cell panel breaks down, do not influence the operate as normal of all the other cell panels;
2. what use in this terminal box is the electronic switch 2 of high-performance zero loss, replaces traditional diode, thereby the extremely low reverse leakage current of realization has reduced under the conventional diode mode loss to the solar panel generating efficiency;
3. adopt intelligent electronic switch 2, therefore after cell panel breaks down, electronic switch 2 automaticallyes switch, bypass and unusual cell panel occurs, electronic switch 2 can be realized low conduction loss, thereby saved the energy loss of solar module, guaranteed the safety of solar module simultaneously, and the hot blast danger that reduces switch protection part itself, conduction impedance and thermal loss are extremely low, thereby improved the generating efficiency of solar panel, also relative simultaneously diode mode has improved the reliability of system works;
4. employing surface mounting technology, the terminal box reliable in quality is stable, and than traditional junction box structure, the present invention is simple in structure, and cost is low;
5. can directly electronic switch 2 be integrated in solar components inside, make full use of the characteristics of electronic switch high reliability and low thermal losses.The terminal box design is exempted from realization.
More than specific embodiment of the present invention is illustrated in conjunction with diagram, clearly, on the basis of not leaving scope and spirit of the present invention, can much revise prior art and technology.In the technical field, the common knowledge of a GPRS just can be carried out diversified change in technology main idea scope of the present invention under of the present invention.
Claims (3)
1. terminal box that solar module is used, it is characterized in that: it comprises the cell panel that polylith is connected mutually and is provided with, a corresponding electronic switch in parallel on each cell panel, described electronic switch comprises electric switch, checkout gear and control and treatment device, described checkout gear has the monitoring point that links to each other with corresponding cell panel two ends, when checkout gear does not detect corresponding cell panel when unusual by the monitoring point, described electric switch disconnects so that this cell panel continues operate as normal; When checkout gear detected corresponding cell panel and abnormal conditions occur by the monitoring point, described control and treatment device was controlled described electric switch by the signal of telecommunication and is connected so that other cell panel is in the normal series circuit.
2. the terminal box that solar module according to claim 1 is used is characterized in that: described checkout gear and described control and treatment device is integrated is arranged on the same chip.
3. the terminal box that solar module according to claim 1 is used is characterized in that: described electronic switch adopts the surface mounting technology fixed sealing to be loaded in the terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102015934A CN102255570A (en) | 2011-07-19 | 2011-07-19 | Junction box for solar cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102015934A CN102255570A (en) | 2011-07-19 | 2011-07-19 | Junction box for solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102255570A true CN102255570A (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102015934A Pending CN102255570A (en) | 2011-07-19 | 2011-07-19 | Junction box for solar cell module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102255570A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569430A (en) * | 2012-01-12 | 2012-07-11 | 苏州清莲纳米环保科技有限公司 | Solar battery pack |
| CN103296112A (en) * | 2012-03-05 | 2013-09-11 | 上海捷波通信科技有限公司 | Junction box and intelligent motoring system of solar battery component |
| CN110824966A (en) * | 2018-07-23 | 2020-02-21 | 傅宗民 | A wisdom energy thing networking that is used for connector of wisdom energy thing networking and contains it |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299572A (en) * | 2008-05-23 | 2008-11-05 | 北京合康亿盛科技有限公司 | Pass-by apparatus for high voltage frequency transformer |
| CN101752844A (en) * | 2008-12-18 | 2010-06-23 | 凹凸电子（武汉）有限公司 | Device, system and method for protection of battery |
| AU2010231330A1 (en) * | 2009-04-02 | 2011-10-27 | Dow Kokam France Sas | Method for securing the operation of an electric battery |
| CN202160131U (en) * | 2011-07-19 | 2012-03-07 | 苏州清莲纳米环保科技有限公司 | Junction box for solar battery pack |
-
2011
- 2011-07-19 CN CN2011102015934A patent/CN102255570A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299572A (en) * | 2008-05-23 | 2008-11-05 | 北京合康亿盛科技有限公司 | Pass-by apparatus for high voltage frequency transformer |
| CN101752844A (en) * | 2008-12-18 | 2010-06-23 | 凹凸电子（武汉）有限公司 | Device, system and method for protection of battery |
| AU2010231330A1 (en) * | 2009-04-02 | 2011-10-27 | Dow Kokam France Sas | Method for securing the operation of an electric battery |
| CN202160131U (en) * | 2011-07-19 | 2012-03-07 | 苏州清莲纳米环保科技有限公司 | Junction box for solar battery pack |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569430A (en) * | 2012-01-12 | 2012-07-11 | 苏州清莲纳米环保科技有限公司 | Solar battery pack |
| CN103296112A (en) * | 2012-03-05 | 2013-09-11 | 上海捷波通信科技有限公司 | Junction box and intelligent motoring system of solar battery component |
| CN110824966A (en) * | 2018-07-23 | 2020-02-21 | 傅宗民 | A wisdom energy thing networking that is used for connector of wisdom energy thing networking and contains it |
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Application publication date: 20111123 |