CN105763152A - Conjunction box, and photovoltaic assembly and system thereof - Google Patents
Conjunction box, and photovoltaic assembly and system thereof Download PDFInfo
- Publication number
- CN105763152A CN105763152A CN201610146882.1A CN201610146882A CN105763152A CN 105763152 A CN105763152 A CN 105763152A CN 201610146882 A CN201610146882 A CN 201610146882A CN 105763152 A CN105763152 A CN 105763152A
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- cable
- rosette
- module
- electronic module
- output lead
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- 238000003466 welding Methods 0.000 claims abstract description 51
- 238000002372 labelling Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
-
- 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
Abstract
The invention provides a conjunction box, and a photovoltaic assembly and system thereof. The conjunction box comprises a box body which comprises a first output lead, a second output lead, and first and second lead welding strips connecting two ends of a solar cell string, wherein end portions of the first and second lead welding strips form first connection terminals, the first output lead and the second output lead are respectively provided with a second connection terminal, and the first connection terminals and the second connection terminals are arranged at intervals; and a box cover which comprises an electronic module having an input terminal and an output terminal, wherein the box body and the box cover can be plugged and fixed cooperatively, allowing the input terminal of the electronic module to be in electric connection with the first connection terminals, and the output terminal of the electronic module is in electric connection with the second connection terminals. The invention provides a new multifunctional photovoltaic assembly conjunction box, and a photovoltaic assembly and system thereof; through replacing the box cover having different electronic modules, different electronic module functions can be easily realized, and the replacement is easy.
Description
Technical field
The present invention relates to photovoltaic accessory technical field, in particular to a kind of rosette, photovoltaic module and system thereof.
Background technology
Solar photovoltaic assembly is the core in solar power system, is also most important part in solar power system.The effect of solar photovoltaic assembly is to convert solar energy into electrical energy, and is sent in accumulator and stores, or promotes loaded work piece.
In prior art, single solar photovoltaic assembly has a rosette, for the output of the series cells being laminated to solar panels is connected to cable.Bypass diode it is additionally provided with, for skipping these series cells when some series cells cisco unity malfunction by bypass diode, to avoid the damage of other assembly in rosette.
Fig. 1 is the rough schematic of the photovoltaic module of prior art.As it can be seen, photovoltaic module 100 includes photovoltaic panel 101 and rosette 103.Rosette 103 is provided with output lead 105, and output lead 105 is provided with joint 107.This joint 107 generally includes 1 male and 1 female, and both can mate connection.
Fig. 2 is the rough schematic of the rosette of the photovoltaic module of prior art.As it can be seen, rosette 200 contains box body 201, wire welding 205, bypass diode 207, the fixing terminal 209 of welding, output lead 213 and lid (not shown).Wherein, output lead 213 has fixing terminal 211.Lid is generally only 1 vinyl cover.Box body 201 is offered hole 203 for the wire welding 205 photovoltaic panel 101 from Fig. 1 is accessed box body 201.The fixing terminal 211 of the fixing terminal 209 of welding and output lead 213 is electrically connected.
Fig. 3 is the internal wiring rough schematic of the photovoltaic module of prior art.As it can be seen, photovoltaic module 300 contains multiple cell piece substring 301, wire welding 303, box body 305, bypass diode 307, output lead 309.The conventional cell piece substring in photovoltaic module is 3, each substring bypass diode 307 in parallel.The fixing terminal of the fixing terminal of the welding of wire welding 303 and output lead, and be that the two ends of bypass diode string are connected together.
Fig. 4 is the internal wiring rough schematic of the another kind of photovoltaic module of prior art.As it can be seen, photovoltaic module 400 is to add assembly electronic module 403 on the basis of the photovoltaic module 300 shown in Fig. 3, the input of this assembly electronic module 403 is connected with cell piece substring 401, is namely connected with the fixing terminal of the welding of wire welding 405.And the outfan of assembly electronic module 403 connects the fixing terminal of output lead 409.The two ends of bypass diode module 407 and the input of assembly electronic module 403 connect, rather than are directly connected with the fixing terminal of output lead 409.The rosette of photovoltaic module adds assembly electronic module 403 for the performance monitoring that carries out to photovoltaic module, or implement communication, load safety protection function, the function such as antitheft.Different assembly electronic modules is capable of different functions, is generally just solidificated in rosette by assembly electronic module when making photovoltaic module, it is impossible to change, once damage, is difficult to change.Additionally, the assembly electronic module in rosette of the prior art is usually DC equipment, it is output as direct current cables, adopts the group string connected mode of standard.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of photovoltaic component terminal box, applies photovoltaic module and the system thereof of this rosette, and this rosette can be easily achieved different electronic module functions, easily changes.
For solving above-mentioned technical problem, the present invention provides a kind of rosette suitable in photovoltaic module, and described photovoltaic module includes cell piece string, including:
Box body, including the first output lead, the second output lead and the first wire welding and the second wire welding that connect described cell piece string two ends, the end of described first, second wire welding forms the first binding post；Described first output lead and the second output lead are respectively provided with the second binding post；Described first binding post and described second binding post interval are arranged；
Lid, including electronic module, described electronic module includes input and outfan；
Described box body can patch with described lid to coordinate and fix, and makes the input of described electronic module be electrically connected with described first binding post, and the outfan of described electronic module is electrically connected with described second binding post.
According to one embodiment of present invention, described cell piece string comprises N number of substring of series connection and N >=2, is connected to N-1 root wire welding between adjacent described substring；Described box body also includes the bypass diode set of a N number of bypass diode of series connection, and the two ends of described bypass diode set are connected with described first, second wire welding respectively；Wherein, described N-1 root wire welding is respectively connected to the negative or positive electrode of described bypass diode, except the two ends of described bypass diode set.
According to one embodiment of present invention, described cell piece string comprises N number of substring of series connection and N >=2, is connected to N-1 root wire welding between adjacent described substring, and described N-1 root wire welding forms the 3rd binding post on described box body；Described lid includes the bypass diode set of a N number of bypass diode of series connection, the two ends of described bypass diode set are connected with the described input of described electronic module respectively, the negative or positive electrode of described bypass diode forms the 4th binding post, except the two ends of described bypass diode set；Wherein, when described box body patches with described lid and to coordinate fixing, described 3rd binding post is electrically connected with described 4th binding post respectively.
According to one embodiment of present invention, described electronic module is one or more that monitor in the circuit module of described photovoltaic module, protection circuit module, MPPT maximum power point tracking circuit module and inverter circuit module.
According to one embodiment of present invention, described electronic module is DC electronic module or alternating electron module.
According to one embodiment of present invention, pass the position of described rosette at described first output lead and the second output lead and there is labelling.
According to one embodiment of present invention, including cable and plug, described cable includes the first heart yearn and the second heart yearn, described first heart yearn and described second heart yearn and is electrically connected with described first output lead and described second output lead；Described plug has the first contact pin and the second contact pin, described first contact pin and described second contact pin and is electrically connected with described first heart yearn and described second heart yearn.
Present invention also offers a kind of photovoltaic module, including aforementioned rosette.
Present invention also offers a kind of photovoltaic component system, multiple aforesaid photovoltaic module including series connection, described electronic module is DC electronic module, the outfan of described first output lead and the second output lead forms the first male and the first female respectively, and described first male of adjacent described photovoltaic module and described first female can patch cooperation mutually to be electrically connected.
According to one embodiment of present invention, including bus cable and multiple aforesaid photovoltaic module, described electronic module is alternating electron module, and the outfan of described first output lead and the second output lead forms the second male and the second female respectively；Described bus cable includes male cable and female cable, described male cable is in series with multiple first socket, being in series with multiple second socket on described female cable, described second male is electrically connected with described first socket, and described second female is electrically connected with described second socket.
According to one embodiment of present invention, electrical network is accessed in one end of described male cable and described female cable, and the other end arranges sealing lid.
Present invention also offers another kind of photovoltaic component system, including bus cable and multiple rosette as the aforementioned, described bus cable is provided with multiple socket, described socket and described plug and coordinates to be electrically connected.
According to one embodiment of present invention, the described electronic module of described rosette is DC electronic module, described bus cable includes the first cable and the second cable, and described second cable is provided with multiple socket, described socket and described plug and coordinates to be electrically connected.
According to one embodiment of present invention, the described electronic module of described rosette is alternating electron module, described bus cable includes the 3rd cable and the 4th cable, and single described socket accesses described 3rd cable and described 4th cable, described socket and described plug and coordinates to be electrically connected.
A kind of new multifunctional photovoltaic component rosette provided by the invention, can be easily achieved different electronic module functions by changing the lid with different electronic module, and readily replaceable.This lid has direct current or alternating electron function, adopts the photovoltaic module of this rosette or photovoltaic component system just can realize different direct currents or exchange translation function.
Accompanying drawing explanation
Being that they are included and constitute the part of the application in order to provide further understanding of the invention including accompanying drawing, accompanying drawing illustrates embodiments of the invention, and plays the effect explaining the principle of the invention together with this specification.In accompanying drawing:
Fig. 1 is the rough schematic of the photovoltaic module of prior art.
Fig. 2 is the rough schematic of the photovoltaic component terminal box of prior art.
Fig. 3 is the internal wiring rough schematic of the photovoltaic module of prior art.
Fig. 4 is the internal wiring rough schematic of the another kind of photovoltaic module of prior art.
Fig. 5 a is the structural representation of a kind of rosette of the present invention.
Fig. 5 b is the structural representation of the another kind of rosette of the present invention.
Fig. 5 c is the structural representation of another rosette of the present invention.
Fig. 6 is the simple in construction schematic diagram of the rosette adopting DC electronic module of the present invention.
Fig. 7 is the system line rough schematic of the rosette of the photovoltaic component system employing DC electronic module of the present invention.
Fig. 8 is the simple in construction schematic diagram that the present invention adopts the rosette of alternating electron module.
Fig. 9 is the system line rough schematic of the rosette of the photovoltaic component system employing alternating electron module of the present invention.
Figure 10 is the structural representation of another kind rosette of the present invention.
Figure 11 is the rough schematic of the output cable joint of Figure 10.
Figure 12 is the rough schematic of the rosette connection bus cable of the another kind of photovoltaic component system of the present invention.
Figure 13 a is the rough schematic of the dc bus of the rosette in Figure 12 for DC electronic module.
Figure 13 b is the rough schematic of the plug of the rosette that dc bus is corresponding in Figure 12.
Figure 14 is the rough schematic installed for the photovoltaic system of DC electronic module in Figure 12.
Figure 15 a is the rough schematic of the AC bus of the rosette in Figure 12 for alternating electron module.
Figure 15 b is the rough schematic of the plug of the rosette that AC bus is corresponding in Figure 12.
Figure 16 is the rough schematic installed for the photovoltaic system of alternating electron module in Figure 12.
Detailed description of the invention
With detailed reference to accompanying drawing, embodiments of the invention are described now.In the case of any possible, identical labelling will be used to represent same or analogous part in all of the figs.In addition, although the term used in the present invention is to select from public term, but some terms mentioned in description of the present invention are probably what applicant selected by his or her judgement, its detailed meanings explanation in the relevant portion of description herein.Additionally, require not only by the actual terms used, and it is also to the meaning by each term contains and understands the present invention.
Fig. 5 a is the structural representation of a kind of rosette of the present invention.As it can be seen, a kind of rosette 500 suitable in photovoltaic module includes box body 501 and lid 503, this photovoltaic module includes cell piece string (not shown).
Box body 501 includes the first wire welding 504 and the second wire welding 505 connecting cell piece string two ends.Box body 501 also includes output lead 513, and output lead 513 includes the first output lead and the second output lead.Wherein, the end of first, second wire welding 504,505 forms the first binding post 509.First output lead and the second output lead are respectively provided with the second binding post 511.First binding post 509 and the second binding post 511 interval are arranged.In other words, the first binding post 509 is what to separate with the second binding post 511.
Lid 503 includes electronic module 521, and electronic module 521 includes two input 523 and two outfans 525.
Box body 501 can patch with lid 503 to coordinate and fix.When box body 501 patches with lid 503 and to coordinate fixing so that the input 523 of electronic module 521 and the first binding post 509 are electrically connected, and the outfan 525 of electronic module 521 and the second binding post 511 are electrically connected.
Fig. 5 b is the structural representation of the another kind of rosette of the present invention.As it can be seen, a kind of rosette 500 suitable in photovoltaic module includes box body 501 and lid 503, this photovoltaic module includes cell piece string (not shown).
Box body 501 includes the first wire welding 504 and the second wire welding 505 connecting cell piece string two ends.Box body 501 also includes output lead 513, and output lead 513 includes the first output lead and the second output lead.Cell piece string comprises N number of substring of series connection and N >=2, is connected to N-1 root wire welding 506 between adjacent described substring.Wherein, the end of first, second wire welding 504,505 forms the first binding post 509.Box body 501 also includes the bypass diode set of a N number of bypass diode 507 of series connection, and the two ends of bypass diode set are connected with first, second wire welding 504,505 respectively.N-1 root wire welding 506 is respectively connected to the negative or positive electrode of bypass diode 507, except the two ends of bypass diode set are not accessed.First output lead and the second output lead are respectively provided with the second binding post 511.First binding post 509 and the second binding post 511 interval are arranged.In other words, the first binding post 509 is what to separate with the second binding post 511.
Lid 503 includes electronic module 521, and electronic module 521 includes two input 523 and two outfans 525.
Box body 501 can patch with lid 503 to coordinate and fix.When box body 501 patches with lid 503 and to coordinate fixing so that the input 523 of electronic module 521 and the first binding post 509 are electrically connected, and the outfan 525 of electronic module 521 and the second binding post 511 are electrically connected.
As it can be seen, schematically illustrate the situation of 3 substrings that cell piece string comprises series connection, being connected to 2 wire weldings 506 between adjacent substring, box body 501 includes the bypass diode set of 3 bypass diodes 507 of series connection.Except the two ends of bypass diode set, 2 wire weldings 506 are respectively connected to the negative or positive electrode of bypass diode 507.Specifically, the word string of cell piece string is through each wire welding 504,505,506 the two poles of the earth linking bypass diode 507.
Fig. 5 c is the structural representation of another rosette of the present invention.As it can be seen, a kind of rosette 500 suitable in photovoltaic module includes box body 501 and lid 503, this photovoltaic module includes cell piece string (not shown).
Box body 501 includes the first wire welding 504 and the second wire welding 505 connecting cell piece string two ends.Box body 501 also includes output lead 513, and output lead 513 includes the first output lead and the second output lead.Cell piece string comprises N number of substring of series connection and N >=2, is connected to N-1 root wire welding 506 between adjacent described substring.N-1 root wire welding 506 forms the 3rd binding post 516 on box body 501.Wherein, the end of first, second wire welding 504,505 forms the first binding post 509.First output lead and the second output lead are respectively provided with the second binding post 511.First binding post 509 and the second binding post 511 interval are arranged.
Lid 503 includes electronic module 521, and electronic module 521 includes two input 523 and two outfans 525.Lid 503 also includes the bypass diode set (not shown) of a N number of bypass diode of series connection, and the two ends of bypass diode set are connected with two inputs 523 of electronic module 521 respectively.Except the two ends of bypass diode set, the negative or positive electrode at bypass diode forms the 4th binding post 517.
As shown in Figure 5 c, schematically illustrate the situation of 3 substrings that cell piece string comprises series connection, between adjacent substring, be connected to 506,2 wire weldings 506 of 2 wire weldings on box body 501, form the 3rd binding post 516.Lid 503 includes the bypass diode set of 3 bypass diodes of series connection.Except the two ends of bypass diode set, the negative or positive electrode at bypass diode forms the 4th binding post 517.
Box body 501 can patch with lid 503 to coordinate and fix.When box body 501 patches with lid 503 and to coordinate fixing, the input 523 and the first binding post 509 that make electronic module 521 are electrically connected, the outfan 525 of electronic module 521 and the second binding post 511 are electrically connected, and the 3rd binding post 516 and the 4th binding post 517 are electrically connected.
It should be noted that the effect arranging bypass diode set in rosette in previous embodiment is to skip these cell piece strings when some cell piece string cisco unity malfunction by bypass diode set, such that it is able to avoid the damage of other assembly.
Electronic module 521 in previous embodiment is DC electronic module or alternating electron module.What DC electronic module represented output is direct current, and what alternating electron module represented output is exchange.
Electronic module 521 is one or more in the circuit module of monitoring photovoltaic module, protection circuit module, MPPT maximum power point tracking circuit module and inverter circuit module.Specifically, the circuit module of monitoring photovoltaic module can detect the voltage and current of photovoltaic module, also includes communication module simultaneously and the related data monitored can be sent to the data center specified and carry out preserving and analyzing.Protection circuit module, for instance have the protection circuit module of arc protection function, turns off whole circuit when electric arc occurs, makes the output voltage of rosette 500 be almost 0, it is ensured that the safety of photovoltaic component system.MPPT maximum power point tracking circuit module can allow rosette be operated in maximum power point, it is provided that the generated energy of photovoltaic component system.It should be understood that electronic module 521 can also is that the circuit module with following function, for instance have GPS positioner, the tracking of can achieve a butt joint line box or photovoltaic module, it is prevented that rosette or photovoltaic module are stolen.Additionally, this electronic module 521 can also be simply be connected with outfan 525 by input 523, it is similar to the rosette 200 of the prior art shown in Fig. 2.
When electronic module 521 is alternating electron module, electronic module 521 can be inverter.The direct current output of corresponding photovoltaic module can be converted to alternating current by the inverter that single rosette 500 comprises, and so multiple photovoltaic modulies can compose in parallel bigger photovoltaic module AC system.
It is preferred that pass the position of rosette at output lead there is labelling, it is simple to user discrimination.Fig. 6 is the simple in construction schematic diagram of the rosette adopting DC electronic module of the present invention.As it can be seen, rosette 600 includes bypass diode module 607 and DC electronic module 621.It should be understood that bypass diode module 607 can include the bypass diode of multiple series connection, be equivalent to the bypass diode set being in series in Fig. 5 b by multiple bypass diodes 507.The input of DC electronic module 621 is connected with first binding post at bypass diode module 607 two ends.The outfan of DC electronic module 621 connects the second connection terminal of the output lead 603 of rosette 600.The position passing rosette 600 at output lead 603 has labelling, for instance can mark DC+ and DC-in the corresponding position outside rosette 603, facilitate user discrimination, be conducive to the assembling of follow-up photovoltaic component system.Accordingly, when rosette adopts alternating electron module, the position passing rosette at output lead can arrange AC signal labelling, hereinafter will be described in.
Present invention also offers a kind of photovoltaic module.This photovoltaic module includes aforesaid arbitrary rosette.Wherein, cell piece string is electrically connected wire welding, and when there being bypass diode set, each word string of cell piece string is through the two poles of the earth of wire welding each bypass diode linking bypass diode set.
Fig. 7 is the system line rough schematic of the rosette of the photovoltaic component system employing DC electronic module of the present invention.As it can be seen, photovoltaic component system 700 includes multiple photovoltaic module, each photovoltaic module includes rosette 701.The electronic module that rosette 701 adopts is DC electronic module, and the first output lead of rosette 701 and the outfan of the second output lead form the first male 703 and the first female 705.First male 703 of the rosette 701 of adjacent photovoltaic module and the first female 705 can patch cooperation mutually to be electrically connected, and its tail end can be accessed by corresponding cable.
Fig. 8 is the simple in construction schematic diagram that the present invention adopts the rosette of alternating electron module.As it can be seen, the electronic module that rosette 800 adopts is alternating electron module 821.The outfan of alternating electron module 821 connects the output lead 803 of rosette 800.Now, rosette 803 is exchange output, is most commonly that live wire L and center line N.As it was previously stated, pass the position of rosette at output lead there is labelling.For example, it is possible to mark AC-L and/or AC-N in the corresponding position of the outside of rosette 800, it is simple to user distinguishes.
Fig. 9 is the system line rough schematic of the rosette of the photovoltaic component system employing alternating electron module of the present invention.As it can be seen, photovoltaic component system 900 includes bus cable and multiple photovoltaic module, the electronic module that the rosette 901 of photovoltaic module adopts is alternating electron module.The outfan of the output lead of rosette 901 forms the second male 903 and the second female 905.Bus cable includes male cable 907 and female cable 909, and male cable 907 is in series with multiple first socket 911, and female cable 909 is in series with multiple second socket 913.Wherein, the second male 903 can patch with the first socket 911 and coordinate, and is electrically connected.Second female 905 can patch with the second socket 913 and coordinate, and is electrically connected.
Further, one end of male cable 907 and female cable 909 is respectively connected to the live wire L and center line N of electrical network, and the other end arranges sealing lid 915, it is provided that insulation protection.
Present invention also offers another kind of rosette.Figure 10 is the structural representation of another kind rosette of the present invention.Figure 11 is the rough schematic of the output cable joint of Figure 10.With reference to Figure 10,11, rosette 1000 includes box body and lid.Wherein, box body includes connecting the multiple conducting wires welding 1005 of multiple word strings 1009 of cell piece string, multiple bypass diodes bypass diode module 1007 being in series and output lead 1013.Each wire welding 1005 connects the negative or positive electrode of each bypass diode respectively, and namely multiple word strings 1009 through multiple conducting wires welding 1005 and link bypass diode module 1007.The first binding post 1011 is formed at bypass diode module 1007 two ends.Two output leads 1013 have two the second binding posts 1015.First binding post 1011 and the second binding post 1015 interval are arranged, and in other words, the first binding post 1011 is what to separate with the second binding post 1015.Lid includes electronic module 1017.Two inputs of electronic module 1017 are electrically connected with two the first binding posts 1011 respectively, and two outfans of electronic module 1017 are electrically connected with two the second binding posts 1015 respectively.Box body patches with lid to coordinate and fixes.Box body and lid can form sealing structure, and the equipment in butted line box 1000 forms protection.Electronic module 1017 is DC electronic module or alternating electron module.Rosette 1000 also includes cable 1103 and plug 1105.Cable 1103 includes heart yearn 1003.Heart yearn 1003 is 2, is the first heart yearn and the second heart yearn respectively.Heart yearn 1003 is the wire of tape insulation layer, such as copper cash, aluminum steel etc..Two heart yearns 1003 are electrically connected with two output leads 1013.Plug 1105 has contact pin 1107.Contact pin 1107 is two, is the first contact pin and the second contact pin respectively.Two contact pins 1107 are electrically connected with two heart yearns 1003.The assembling of photovoltaic component system it is easy to the junction box structure of plug.
Present invention also offers another kind of photovoltaic component system.Figure 12 is the rough schematic of the rosette connection bus cable of the another kind of photovoltaic component system of the present invention.As it can be seen, this photovoltaic component system 1200 includes bus cable 1209 and multiple aforesaid rosette 1201 (rosette 1000 being equivalent in Figure 10).Bus cable 1209 is provided with multiple socket 1207, socket 1207 and plug 1205 (1105) coordinate to be electrically connected.When assembling photovoltaic component system 1200, plug 1205 (1105) on the output cable 1203 (1103) of rosette 1201 is directly inserted into the socket 1207 on bus cable 1209, and multiple rosettees 1201 insert the multiple sockets 1207 on bus cable 1209.The electronic module with various function that this kind of structure is mentioned suitable in the present invention, including DC electronic module and alternating electron module, all can adopt this kind of connected mode.
Figure 13 a is the rough schematic of the dc bus of the rosette in Figure 12 for DC electronic module.Figure 13 b is the rough schematic of the plug of the rosette that dc bus is corresponding in Figure 12.As it can be seen, when the electronic module of rosette is DC electronic module, bus cable includes the first cable 1307 and the second cable 1309, and the second cable 1309 is provided with multiple socket 1303, socket 1303 and plug 1311 and coordinates to be electrically connected.Having 2 contact pins 1305 inside socket 1303, the contact pin 1315 of the plug 1311 of these two contact pins 1305 and rosette mates.First cable 1307 is continuous print, is not connected with socket 1303.Second cable 1309 is segmentation, and every section is patched with plug 1311 be connected after cooperation by socket 1303.Having contact pin 1315 inside plug 1311, respectively positive pole and negative pole, correspondence is inserted in socket 1303.
Figure 14 is the rough schematic installed for the photovoltaic system of DC electronic module in Figure 12.As it can be seen, after plug 1405 inserts the socket 1403 of bus, the positive pole of 1 rosette is just connected with the negative pole of next one rosette.Multiple rosettees are connected, and one end of the first cable 1407 and the second cable 1409 can connect electrical equipment, such as inverter.And the other end as tail end, can add direct current tail end protection lid 1401.Direct current tail end protection lid 1401 provides beyond insulation and environmental conservation in addition to bus cable, is additionally provided with electric conductor 1403, the first cable 1407 and the second cable 1409 is turned on.
Figure 15 a is the rough schematic of the AC bus of the rosette in Figure 12 for alternating electron module.Figure 15 b is the rough schematic of the plug of the rosette that AC bus is corresponding in Figure 12.As shown in the figure, when the electronic module of rosette is alternating electron module, bus cable includes the 3rd cable 1507 and the 4th cable 1509, and single socket 1503 accesses the 3rd cable 1507 and the 4th cable 1509, socket 1503 and plug 1505 and coordinates to be electrically connected.Having 2 contact pins 1505 inside socket 1503, the contact pin 1507 in the plug 1505 of these two contact pins 1505 and rosette mates.3rd cable 1507 of bus cable and the 4th cable 1509 are to maintain continuous print, respectively with socket 1503 inside contact pin 1505 connect.Contact pin 1507 is had, respectively live wire L and center line N inside plug 1505.
Figure 16 is the rough schematic installed for the photovoltaic system of alternating electron module in Figure 12.As it can be seen, after the plug 1605 of rosette inserts the socket 1603 of bus, the identical polar output of multiple rosettees 1000 is just connected in parallel on the 3rd cable 1507 and the 4th cable 1509 of bus cable.Such as, in this schematic diagram, the N output of rosette connects the 3rd cable 1607, L output and connects the 4th cable 1609.One end of 3rd cable 1607 and the 4th cable 1609 connects electrical network, and the other end is tail end, adds exchange tail end protection lid 1601.This direct current tail end protection lid 1601 is to bus cable offer insulation and environmental conservation.
A kind of new multifunctional photovoltaic component rosette that the present invention describes, including box body and lid, can be easily achieved different electronic module functions by changing the lid with different electronic module, and be convenient for changing.The photovoltaic module with this rosette has direct current or alternating electron function.The photovoltaic component system adopting this rosette just can realize different direct currents or exchange translation function by corresponding bus cable.
Those skilled in the art can be obvious, the above-mentioned exemplary embodiment of the present invention can be carried out various modifications and variations without departing from the spirit and scope of the present invention.Accordingly, it is intended to make the present invention cover the amendment to the present invention and modification dropping within the scope of appended claims and equivalent arrangements thereof.
Claims (14)
1. being applicable to a rosette for photovoltaic module, described photovoltaic module includes cell piece string, and described rosette includes:
Box body, including the first output lead, the second output lead and the first wire welding and the second wire welding that connect described cell piece string two ends, the end of described first, second wire welding forms the first binding post；Described first output lead and the second output lead are respectively provided with the second binding post；Described first binding post and described second binding post interval are arranged；
Lid, including electronic module, described electronic module includes input and outfan；
Described box body can patch with described lid to coordinate and fix, and makes the input of described electronic module be electrically connected with described first binding post, and the outfan of described electronic module is electrically connected with described second binding post.
2. rosette according to claim 1, it is characterised in that described cell piece string comprises N number of substring of series connection and N >=2, is connected to N-1 root wire welding between adjacent described substring；Described box body also includes the bypass diode set of a N number of bypass diode of series connection, and the two ends of described bypass diode set are connected with described first, second wire welding respectively；
Wherein, described N-1 root wire welding is respectively connected to the negative or positive electrode of described bypass diode, except the two ends of described bypass diode set.
3. rosette according to claim 1, it is characterised in that described cell piece string comprises N number of substring of series connection and N >=2, is connected to N-1 root wire welding between adjacent described substring, and described N-1 root wire welding forms the 3rd binding post on described box body；
Described lid includes the bypass diode set of a N number of bypass diode of series connection, the two ends of described bypass diode set are connected with the described input of described electronic module respectively, the negative or positive electrode of described bypass diode forms the 4th binding post, except the two ends of described bypass diode set；
Wherein, when described box body patches with described lid and to coordinate fixing, described 3rd binding post is electrically connected with described 4th binding post respectively.
4. the rosette according to any one of claims 1 to 3, it is characterised in that described electronic module is one or more that monitor in the circuit module of described photovoltaic module, protection circuit module, MPPT maximum power point tracking circuit module and inverter circuit module.
5. the rosette according to any one of claims 1 to 3, it is characterised in that described electronic module is DC electronic module or alternating electron module.
6. the rosette according to any one of claims 1 to 3, it is characterised in that the position passing described rosette at described first output lead and the second output lead has labelling.
7. the rosette according to any one of claims 1 to 3, it is characterized in that, including cable and plug, described cable includes the first heart yearn and the second heart yearn, described first heart yearn and described second heart yearn and is electrically connected with described first output lead and described second output lead；Described plug has the first contact pin and the second contact pin, described first contact pin and described second contact pin and is electrically connected with described first heart yearn and described second heart yearn.
8. a photovoltaic module, it is characterised in that include rosette described in any one of claims 1 to 3.
9. a photovoltaic component system, it is characterized in that, photovoltaic module multiple as claimed in claim 8 including series connection, described electronic module is DC electronic module, the outfan of described first output lead and the second output lead forms the first male and the first female respectively, and described first male of adjacent described photovoltaic module and described first female can patch cooperation mutually to be electrically connected.
10. a photovoltaic component system, it is characterized in that, including bus cable and multiple photovoltaic module as claimed in claim 8, described electronic module is alternating electron module, and the outfan of described first output lead and the second output lead forms the second male and the second female respectively；Described bus cable includes male cable and female cable, described male cable is in series with multiple first socket, being in series with multiple second socket on described female cable, described second male is electrically connected with described first socket, and described second female is electrically connected with described second socket.
11. photovoltaic component system according to claim 10, it is characterised in that electrical network is accessed in one end of described male cable and described female cable, the other end arranges sealing lid.
12. a photovoltaic component system, it is characterised in that include bus cable and multiple rosette as claimed in claim 7, described bus cable is provided with multiple socket, described socket and described plug and coordinates to be electrically connected.
13. photovoltaic component system according to claim 12, it is characterized in that, the described electronic module of described rosette is DC electronic module, described bus cable includes the first cable and the second cable, described second cable is provided with multiple socket, described socket and described plug and coordinates to be electrically connected.
14. photovoltaic component system according to claim 12, it is characterized in that, the described electronic module of described rosette is alternating electron module, described bus cable includes the 3rd cable and the 4th cable, single described socket accesses described 3rd cable and described 4th cable, described socket and described plug and coordinates to be electrically connected.
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| CN201610146882.1A CN105763152B (en) | 2016-03-15 | 2016-03-15 | A kind of terminal box, photovoltaic module and its system |
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