CN202905748U - Photovoltaic system and photovoltaic module junction box thereof - Google Patents
Photovoltaic system and photovoltaic module junction box thereof Download PDFInfo
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- CN202905748U CN202905748U CN2012205699076U CN201220569907U CN202905748U CN 202905748 U CN202905748 U CN 202905748U CN 2012205699076 U CN2012205699076 U CN 2012205699076U CN 201220569907 U CN201220569907 U CN 201220569907U CN 202905748 U CN202905748 U CN 202905748U
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- diode
- led lamp
- photovoltaic
- terminal
- terminal box
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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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Abstract
The utility model provides a photovoltaic module junction box, which comprises a body, and terminals which are fixedly held in the body and a diode which is connected with the terminals and connected in parallel with two ends of a battery string, wherein LED lamps are arranged on the surface of the body, and the display state of the LED lamps is changed along with the working state of the diode. Compared with the prior art, the working state of the diode is displayed through the LED lamps, and the operating personnel can know the condition of the diode directly, thereby greatly facilitating the production, installation and maintenance processes.
Description
Technical field
The utility model relates to field of photovoltaic power generation, relates in particular to a kind of on the photovoltaic module and have a terminal box that detects the diode operation status function.
Background technology
At present, photovoltaic junction box has played very important bypass protection effect in photovoltaic module, and its function mainly is to realize by the diode in the terminal box.Concrete principle is, photovoltaic cell in the photovoltaic module connects in the rear thereto, and with the some diodes in parallels in the terminal box in the two ends of cell piece tandem, serve as the bypass diode that cell piece is shielded, under cell piece tandem normal operation, the diode at batteries in parallel connection sheet tandem two ends then is in off position, the no current process; And when having the individual cell sheet to work in the cell piece tandem; as be blocked and produce hot spot effect, this cell piece tandem all will be affected, at this moment; being connected in parallel in the diode at cell piece tandem two ends to have electric current to pass through, and utilize this cell piece tandem of diode pair to carry out bypass protection.
Can the diode in the photovoltaic junction box work and will directly affect the efficient of photovoltaic module, and in the process in diode is fit into terminal box, diode is subject to thermal shock possibly, mechanical stress, the various forms of destructions such as electrostatic impact, cause the front originally intact diode of installation after end is installed, but to become faulty goods, it can't be worked on photovoltaic module, and there is no at present effectively, feasible detection method judges whether diode has been subject to destruction in installation process, so just cause in the unwitting situation of operating personnel, but still terminal box can only be mounted to photovoltaic module, can only wait until and find in the actual usefulness of photovoltaic module whether diode can work at last, and also can't judge intuitively in actual use the operating state of diode and find out impaired diode, therefore, to producing, install and all bring inconvenience.
Therefore, necessaryly provide a kind of photovoltaic component terminal box to solve the problems of the technologies described above.
The utility model content
The technical problem that the utility model solves is to provide a kind of photovoltaic component terminal box with measuring ability, and it can effectively detect the operating state of diodes inside terminal box.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of photovoltaic component terminal box, comprise body, be immobilizated in intrinsic terminal and connect described terminal and be parallel to the diode at battery strings two ends, described body surface is provided with the LED lamp, and described LED lamp changes show state with the operating state of described diode.
As the further improvement of the technical program, comprise with the series connection of LED lamp and control LED lamp unlatching or the switch of closing, the comparator that is parallel to described diode two ends in the described body, reach the driver that is connected described comparator and switch.
As the further improvement of the technical program, described driver drives the unlatching of described switch according to the comparative result of comparator or closes.
As the further improvement of the technical program, the two ends of described LED lamp are parallel to the two ends of described diode.
As the further improvement of the technical program, the two ends of described LED lamp are connected with an accessory power supply and are powered by this accessory power supply.
As the further improvement of the technical program, described LED lamp and described diode are connected in series, described LED lamp and the one by one corresponding setting of described diode.
A kind of photovoltaic module, comprise some battery strings and the terminal box that is connected with battery strings, described terminal box comprises body, is immobilizated in intrinsic terminal and connects described terminal and be parallel to the diode at battery strings two ends, described body surface is provided with the LED lamp, and described LED lamp changes show state with the operating state of described diode.
As the further improvement of the technical program, comprise with the series connection of LED lamp and control LED lamp unlatching or the switch of closing, the comparator that is parallel to described diode two ends in the described body, reach the driver that is connected described comparator and switch.
As the further improvement of the technical program, described terminal box also comprises the pedestal that is installed on the photovoltaic module back side, and described pedestal is connected with described body buckle; Described pedestal comprises box body, is contained in the some the first terminals in the described box body and the cable that connects described the first terminal and draw from described box body both sides; Described box body is provided with a base portion, extends outward and fix the alar part of described cable from the base portion both sides, reaches the docking section between both wing portions.
As the further improvement of the technical program, described body be provided with a docking chamber of docking with described pedestal and a pair of lay respectively at both sides, described docking chamber and with the buckle arm of described docking section buckle.
Compared with prior art, photovoltaic component terminal box of the present utility model shows the operating state of diode by the LED lamp, makes operating personnel can get information about the situation of diode, greatly facilitates production, installation and maintenance process.
Description of drawings
Fig. 1 is the stereogram of photovoltaic component terminal box described in the utility model.
Fig. 2 is the decomposed figure of photovoltaic component terminal box described in the utility model.
Fig. 3 is the exploded view of photovoltaic component terminal box pedestal described in the utility model.
Fig. 4 is the bottom view of photovoltaic component terminal box pedestal described in the utility model.
Fig. 5 is the stereogram of photovoltaic component terminal box plug-in module described in the utility model.
Fig. 6 is the exploded view of photovoltaic component terminal box plug-in module described in the utility model.
Fig. 7 is the exploded view of another angle of photovoltaic component terminal box described in the utility model.
Fig. 8 is the circuit theory diagrams of a kind of execution mode of photovoltaic component terminal box described in the utility model.
Fig. 9 is the circuit theory diagrams of the another kind of execution mode of photovoltaic component terminal box described in the utility model.
Figure 10 is the circuit theory diagrams of another execution mode of photovoltaic component terminal box described in the utility model.
Embodiment
See also Fig. 1 to shown in Figure 10, the utility model provides a kind of photovoltaic component terminal box 100, comprises pedestal 10 and the plug-in module 20 of pegging graft with described pedestal.Described pedestal 10 is installed on the back side of photovoltaic module, described pedestal 10 and the parallel and described back side of the grafting direction of plug-in module 20.
See also Fig. 3, shown in Figure 4, described pedestal 10 comprises box body 11, is contained in the some the first terminals 12 in the described box body and the cable 13 that connects described the first terminal and draw from described box body both sides.
Described box body 11 is provided with a base portion 111, the alar part 112 that extends outward from the base portion both sides, the docking section 113 between both wing portions and is positioned at described base portion and the base 114 of alar part bottom, wherein, described base portion 111 is provided with the opening 115 that runs through box body, is used for holding the afterbody of described the first terminal 12; Described alar part 112 forms from the inclination extension of described base portion 111 both sides, and be symmetrically distributed in the both sides of described docking section 113, it is vertical that the bearing of trend of described both wing portions 112 is 90 degree, so can save cable, also make things convenient for and be connected with the adjacent light photovoltaic assembly, described alar part 112 is provided with the accommodation hole 116 that holds described cable, and this accommodation hole 116 connects to described opening 115, so that cable 13 can enter being connected of opening 115 interior realizations and the first terminal 12 by accommodation hole 116; The slot 1133 that described docking section 113 is provided with roof 1131, two opposite side walls 1132, reaches between described roof and sidewall and supply described plug-in module 20 to insert, described sidewall 1132 are provided with and the bayonet socket 1134 of plug-in module 20 buckles and the flange 1135 that turn down to slot 1133 inboards; Described base 114 is supported in the below of described base portion 111 and alar part 112, and described base 114 is provided with some thermovents 117, described thermovent 117 lays respectively at the below of described alar part 112, base portion opening 115, being arranged so that of described base 114 formed the gap between box body 11 and the photovoltaic module back side, add the setting of thermovent 117 on the upper bed-plate, can greatly improve the heat radiation situation of box body 11.
Described the first terminal 12 is contained in the described base portion 111, and be provided with the afterbody 122 that extends into the contact site 121 in the described slot 1133 and be positioned at described opening 115, described contact site 121 comprises the elastic contact arm of a pair of relative turnover, and two the first terminals of initial and end also are provided with a linking arm 123 that is connected with described cable.
Described cable 13 extends from described alar part 112, and the angle between two cables be 90 the degree, the adjacent photovoltaic module of connection that so can be convenient.
See also Fig. 5, shown in Figure 6, described plug-in module 20 comprises body 21, be immobilizated in described intrinsic some the second terminals 22, be positioned at the body bottom base plate 23, be carried on the described base plate 23 and the LED lamp 25 of the chip 24 that is connected with described the second terminal 22, the described chip 24 of some connections and be positioned at the fin 26 on chip 24 surfaces.
Described body 21 is provided with a docking chamber 27 of docking with described pedestal 10 and a pair of buckle arm 28 that lays respectively at 27 both sides, described docking chamber.Described docking chamber 27 is used for holding described the second terminal 22.Described buckle arm 28 is used for being clasped with the bayonet socket of described box body docking section, and realization plug-in module 20 is fixedly connected with box body 11.
Described the second terminal 22 in the form of sheets, and be provided with one with the extended fixed part 222 of main part 221, autonomous agent one lateral buckling of described the first terminal 12 docking and the connecting portion 223 that is positioned at main part 221 1 ends and is connected with chip 24.Described main part 221 in the form of sheets, it is inserted between two elastic contact arms of described the first terminal 12, and is subject to the clamping of two elastic contact arms.
Described LED lamp 25 is positioned at body 21 surfaces, and whether it has the function that shows the diode operation state, work with this cell piece that detects in the photovoltaic module, so that terminal box of the present utility model has self-checking function.
Shown in please refer to the drawing 8, for utilizing terminal box of the present utility model, photovoltaic module realizes circuit theory diagrams in the preferred forms of self-checking function, the switch of described chip 24 is integrated some diodes that are parallel to the battery strings two ends, control LED lamp, be parallel to the comparator at each diode two ends and drive the driver of described switch, wherein, each battery strings in the photovoltaic module (such as battery strings 1 to battery strings 3) is in charge of by a diode, a driver and a comparator, and detailed process is:
When certain part cell piece produces hot spot effect because light is blocked in the battery strings 1, the terminal voltage at diode 1 two ends can be from about+the 10V() be changed to rapidly-0.3V(about), at this moment, comparator 1 can detect the signal of the terminal voltage variation at diode 1 two ends, drive switch 1 closure of often opening by driver 1, thus, it is luminous that terminal voltage at LED lamp 1 two ends can trigger LED lamp 1, thereby embody the variation of the terminal voltage at diode 1 two ends, be that diode is switched on and has shunted, diode 1 can enter normal operating conditions after hot spot effect occured battery strings 1, illustrate that diode 1 is in installation, be damaged in the production processes such as encapsulation, in addition, power consumption is unlikely to excessive when preventing LED lamp 1 work, at a side of the described LED lamp 1 resistance flow restricter (not shown) of can connecting, come the electric current of restricted passage LED lamp 1.So, realized the self-checking function of terminal box by described comparator, driver, switch and LED lamp, the operating state of diode is reacted in the change of LED lamp show state, in like manner, also is so for battery strings 2, battery strings 3, repeats no more.
Similarly, shown in please refer to the drawing 9, be the circuit theory diagrams in the another kind of execution mode of the utility model, in this execution mode, the two ends of described LED lamp directly connect an accessory power supply, by this accessory power supply the LED lamp is powered, this accessory power supply can be the power supply that is independent of battery strings, such as rechargeable battery etc., also can directly be connected to the photovoltaic cell string two ends and carry out power taking, the power supply of quovis modo is as long as satisfy the power demands of LED lamp, in the present embodiment, the LED lamp need not to be connected with diodes in parallel.
Except above-mentioned Fig. 8, two kinds of execution modes shown in Figure 9, the utility model also can be realized by the circuit theory diagrams of some other execution modes the self-checking function of terminal box, as shown in figure 10, at this moment, described LED lamp directly is connected in series described diode, when diode works, the electric current process will be arranged in the diode, electric current I can make the LED lamp luminous when flowing through the LED lamp, thereby inform that this diode of operating personnel is in operating state, illustrate that this diode is not impaired in installation process, can realize the purpose of this utility model equally, do not repeat them here.
Than existing terminal box, terminal box described in the utility model can show by the LED lamp operating state of diode, namely after some cell piece is blocked, the diode at cell piece two ends is started working, thereby impel the LED lamp luminous, whether the handled easily personnel can get information about diode and can work, thereby judge whether diode is damaged in installation process, greatly reduce maintenance cost, also greatly facilitate production, installation process.
In addition, be split type because pedestal 10 reaches with plug-in module 20, if when therefore diode has problems in monitoring out plug-in module, can directly change plug-in module and get final product, need not to scrap whole terminal box, provide cost savings.
The above; it only is most preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; any those of ordinary skill in the art; do not breaking away from the technical solutions of the utility model scope situation; utilize the method content of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, all belong to the scope of claims protection.
Claims (10)
1. photovoltaic component terminal box, comprise body, be immobilizated in intrinsic terminal and connect described terminal and be parallel to the diode at battery strings two ends, it is characterized in that: described body surface is provided with the LED lamp, and described LED lamp changes show state with the operating state of described diode.
2. photovoltaic component terminal box according to claim 1 is characterized in that: comprise with the series connection of LED lamp and control LED lamp unlatching or the switch of closing, the comparator that is parallel to described diode two ends in the described body, reach the driver that is connected described comparator and switch.
3. photovoltaic component terminal box according to claim 2 is characterized in that: described driver drives the unlatching of described switch according to the comparative result of comparator or closes.
4. according to claim 2 or 3 described photovoltaic component terminal boxes, it is characterized in that: the two ends of described LED lamp are parallel to the two ends of described diode.
5. it is characterized in that according to claim 2 or 3 described photovoltaic component terminal boxes: the two ends of described LED lamp are connected with an accessory power supply and by this accessory power supply power supply.
6. photovoltaic component terminal box according to claim 1, it is characterized in that: described LED lamp and described diode are connected in series, described LED lamp and the one by one corresponding setting of described diode.
7. photovoltaic module, comprise some battery strings and the terminal box that is connected with battery strings, described terminal box comprises body, is immobilizated in intrinsic terminal and connects described terminal and be parallel to the diode at battery strings two ends, it is characterized in that: described body surface is provided with the LED lamp, and described LED lamp changes show state with the operating state of described diode.
8. photovoltaic module according to claim 7 is characterized in that: comprise with the series connection of LED lamp and control LED lamp unlatching or the switch of closing, the comparator that is parallel to described diode two ends in the described body, reach the driver that is connected described comparator and switch.
9. according to claim 7 or 8 described photovoltaic modulies, it is characterized in that: described terminal box also comprises the pedestal that is installed on the photovoltaic module back side, and described pedestal is connected with described body buckle; Described pedestal comprises box body, is contained in the some the first terminals in the described box body and the cable that connects described the first terminal and draw from described box body both sides; Described box body is provided with a base portion, extends outward and fix the alar part of described cable from the base portion both sides, reaches the docking section between both wing portions.
10. photovoltaic module according to claim 9 is characterized in that: described body be provided with a docking chamber of docking with described pedestal and a pair of lay respectively at both sides, described docking chamber and with the buckle arm of described docking section buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205699076U CN202905748U (en) | 2012-11-01 | 2012-11-01 | Photovoltaic system and photovoltaic module junction box thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205699076U CN202905748U (en) | 2012-11-01 | 2012-11-01 | Photovoltaic system and photovoltaic module junction box thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905748U true CN202905748U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205699076U Expired - Lifetime CN202905748U (en) | 2012-11-01 | 2012-11-01 | Photovoltaic system and photovoltaic module junction box thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795338A (en) * | 2012-11-01 | 2014-05-14 | 阿特斯(中国)投资有限公司 | Photovoltaic assembly and photovoltaic assembly connection box |
-
2012
- 2012-11-01 CN CN2012205699076U patent/CN202905748U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795338A (en) * | 2012-11-01 | 2014-05-14 | 阿特斯(中国)投资有限公司 | Photovoltaic assembly and photovoltaic assembly connection box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 Suzhou high tech Industrial Development Zone, Jiangsu Province, Lu Lu, No. 199, No. Co-patentee after: CANADIAN SOLAR MANUFACTURING (CHANGSHU) Inc. Patentee after: CSI SOLAR POWER GROUP Co.,Ltd. Address before: 215000 Suzhou high tech Industrial Development Zone, Jiangsu Province, Lu Lu, No. 199, No. Co-patentee before: CANADIAN SOLAR MANUFACTURING (CHANGSHU) Inc. Patentee before: CSI SOLAR POWER (CHINA) Inc. |
|
| CP03 | Change of name, title or address |
Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: Atlas sunshine Power Group Co.,Ltd. Patentee after: CANADIAN SOLAR MANUFACTURING (CHANGSHU) Inc. Address before: 215000 No. 199 Lu Shan Road, Suzhou hi tech Industrial Development Zone, Suzhou, Jiangsu Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. Patentee before: CANADIAN SOLAR MANUFACTURING (CHANGSHU) Inc. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |