CN105763152B - A kind of terminal box, photovoltaic module and its system - Google Patents
A kind of terminal box, photovoltaic module and its system Download PDFInfo
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- CN105763152B CN105763152B CN201610146882.1A CN201610146882A CN105763152B CN 105763152 B CN105763152 B CN 105763152B CN 201610146882 A CN201610146882 A CN 201610146882A CN 105763152 B CN105763152 B CN 105763152B
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- 238000003466 welding Methods 0.000 claims abstract description 50
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000009413 insulation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects 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
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
Abstract
The present invention proposes a kind of terminal box, photovoltaic module and its system.The terminal box includes：Box body, includes the first conducting wire welding and the second conducting wire welding of the first output lead, the second output lead and connection cell piece string both ends, and the end of the first, second conducting wire welding forms the first connecting terminal；First output lead and the second output lead are respectively provided with the second connecting terminal；First connecting terminal and the second connecting terminal interval are arranged；Box cover, including electronic module, electronic module include input terminal and output end；Box body can patch cooperation with box cover and fix, and the input terminal of electronic module and the first connecting terminal is made to be electrically connected, and the output end of electronic module and the second connecting terminal are electrically connected.A kind of new multifunctional photovoltaic component terminal box, photovoltaic module and its system provided by the invention have the function of that the box cover of different electronic modules can easily realize different electronic modules by replacing, and readily replaceable.
Description
Technical field
The present invention relates to photovoltaic accessory technical field, in particular to a kind of terminal box, photovoltaic module and its system.
Background technology
Solar photovoltaic assembly is most important in core and solar power system in solar power system
Part.The effect of solar photovoltaic assembly is to convert solar energy into electrical energy, and be sent in accumulator and store, or push
Loaded work piece.
Single solar photovoltaic assembly has a terminal box, the series electrical for that will be laminated to solar panels in the prior art
The output of pond piece is connected to cable.Bypass diode is additionally provided in terminal box, being used for cannot be just in certain series cells
These series cells are often skipped by bypass diode when work, to avoid the damage of other components.
Fig. 1 is the rough schematic of the photovoltaic module of the prior art.As shown, photovoltaic module 100 includes photovoltaic panel
101 and terminal box 103.Terminal box 103 is equipped with output lead 105, and output lead 105 is equipped with connector 107.The connector 107
1 male connector and 1 female are generally included, the two can match connection.
Fig. 2 is the rough schematic of the terminal box of the photovoltaic module of the prior art.As shown, terminal box 200 contains
Box body 201, conducting wire welding 205, bypass diode 207, welding fixing terminal 209, output lead 213 and box cover (not shown).
Wherein, output lead 213 has fixing terminal 211.Box cover is generally only 1 plastic lid.Hole 203 is opened up on box body 201 to be used for
Conducting wire welding 205 is accessed into box body 201 from the photovoltaic panel 101 in Fig. 1.The fixation of welding fixing terminal 209 and output lead 213
Terminal 211 is electrically connected.
Fig. 3 is the internal wiring rough schematic of the photovoltaic module of the prior art.As shown, photovoltaic module 300 includes
Multiple cell piece substrings 301, conducting wire welding 303, box body 305, bypass diode 307, output lead 309.Conventional photovoltaic
Cell piece substring in component is 3, each substring bypass diode 307 in parallel.The welding fixing end of conducting wire welding 303
The fixing terminal of son and output lead, and be that the both ends of bypass diode string are connected together.
Fig. 4 is the internal wiring rough schematic of another photovoltaic module of the prior art.As shown, photovoltaic module
400 be to add component electronic module 403 on the basis of photovoltaic module 300 shown in Fig. 3, the component electronic module 403
Input terminal is connect with cell piece substring 401, i.e., is connect with the welding fixing terminal of conducting wire welding 405.And component electronic module 403
Output end connection output lead 409 fixing terminal.The both ends of bypass diode module 407 and component electronic module 403
Input terminal connects, rather than is directly connect with the fixing terminal of output lead 409.Component is added in the terminal box of photovoltaic module
Electronic module 403 is for the carry out performance monitoring to photovoltaic module, or implements the work(such as communication, load safety protection function, antitheft
Energy.Different component electronic modules can realize different functions, usually just by component electronics when making photovoltaic module
Module is solidificated in terminal box, can not be changed, once damage, it is difficult to replace.In addition, the component in terminal box in the prior art
Electronic module is typically DC equipment, and output is direct current cables, using the string formation connection type of standard.
Invention content
The technical problem to be solved in the present invention is to provide a kind of photovoltaic component terminal box, using the photovoltaic module of the terminal box
And its system, the terminal box can easily realize different electronic module functions, easily replace.
In order to solve the above technical problems, the present invention provides a kind of terminal box suitable for photovoltaic module, the photovoltaic module
Including cell piece string, including：
Box body, including the first output lead, the second output lead and the first conducting wire for connecting cell piece string both ends
The end of welding and the second conducting wire welding, the first, second conducting wire welding forms the first connecting terminal；First output is led
Line and the second output lead are respectively provided with the second connecting terminal；First connecting terminal is set with second connecting terminal interval
It sets；
Box cover, including electronic module, the electronic module include input terminal and output end；
The box body can patch cooperation with the box cover and fix, and make the input terminal of the electronic module and first wiring
Terminal is electrically connected, and the output end of the electronic module is electrically connected with second connecting terminal.
According to one embodiment of present invention, the cell piece string includes concatenated N number of substring, and N >=2, adjacent
N-1 root conducting wire weldings are connected between the substring；The box body further includes the bypass diode of the N number of bypass diode of a series connection
The both ends of group, the bypass diode set are connect with the first, second conducting wire welding respectively；Wherein, the N-1 roots conducting wire weldering
Band is respectively connected to the positive or negative pole of the bypass diode, removes the both ends of the bypass diode set.
According to one embodiment of present invention, the cell piece string includes concatenated N number of substring, and N >=2, adjacent
N-1 root conducting wire weldings are connected between the substring, the N-1 roots conducting wire welding forms third connecting terminal on the box body；
The box cover includes the bypass diode set of the N number of bypass diode of a series connection, the both ends of the bypass diode set respectively with institute
The input terminal connection of electronic module is stated, the positive or negative pole of the bypass diode forms the 4th connecting terminal, except described
The both ends of bypass diode set；Wherein, when the box body and the box cover, which patch cooperation, to be fixed, the third connecting terminal point
It is not electrically connected with the 4th connecting terminal.
According to one embodiment of present invention, the electronic module is the circuit module for monitoring the photovoltaic module, protection
Circuit module, MPPT maximum power point tracking circuit module and inverter circuit mould are in the block one or more.
According to one embodiment of present invention, the electronic module is DC electronic module or alternating electron module.
According to one embodiment of present invention, it is pierced by the terminal box in first output lead and the second output lead
Position have label.
According to one embodiment of present invention, including cable and plug, the cable includes the first core wire and the second core wire,
First output lead and second output lead is electrically connected in first core wire and second core wire；It is described
Plug has the first contact pin and the second contact pin, and first core wire is electrically connected in first contact pin and second contact pin
With second core wire.
The present invention also provides a kind of photovoltaic modulies, including aforementioned terminal box.
The present invention also provides a kind of photovoltaic component system, including concatenated multiple photovoltaic modulies above-mentioned, the electronics
Module is DC electronic module, and the output end of first output lead and the second output lead is respectively formed the first male connector and
One female, first male connector and first female of the adjacent photovoltaic module can mutually patch cooperation to be formed electrically
Connection.
According to one embodiment of present invention, including bus cable and multiple photovoltaic modulies above-mentioned, the electronic module
It is alternating electron module, the output end of first output lead and the second output lead is respectively formed the second male connector and the second mother
Head；The bus cable includes male connector cable and female cable, and multiple first sockets, the mother are in series on the male connector cable
Be in series with multiple second sockets on head cable, second male connector is electrically connected with first socket, second female with
Second socket is electrically connected.
According to one embodiment of present invention, power grid is accessed in one end of the male connector cable and the female cable, another
End setting sealing cover.
The present invention also provides another photovoltaic component system, including bus cable and multiple terminal boxes as the aforementioned, institutes
It states bus cable and is equipped with multiple sockets, the socket and plug cooperation are to be electrically connected.
According to one embodiment of present invention, the electronic module of the terminal box is DC electronic module, described total
Line cable includes the first cable and the second cable, and second cable is equipped with multiple sockets, and the socket and the plug are matched
It closes to be electrically connected.
According to one embodiment of present invention, the electronic module of the terminal box is alternating electron module, described total
Line cable includes third cable and the 4th cable, and the single socket accesses the third cable and the 4th cable, described
Socket and plug cooperation are to be electrically connected.
A kind of new multifunctional photovoltaic component terminal box provided by the invention passes through box of the replacement with different electronic modules
Lid can easily realize different electronic module functions, and readily replaceable.The box cover has the function of direct current or alternating electron, adopts
Different direct currents or exchange conversion function can be realized with the photovoltaic module or photovoltaic component system of the terminal box.
Description of the drawings
It is to provide further understanding of the invention including attached drawing, they are included and constitute part of this application,
Attached drawing shows the embodiment of the present invention, and plays the role of the explanation principle of the invention together with this specification.In attached drawing：
Fig. 1 is the rough schematic of the photovoltaic module of the prior art.
Fig. 2 is the rough schematic of the photovoltaic component terminal box of the prior art.
Fig. 3 is the internal wiring rough schematic of the photovoltaic module of the prior art.
Fig. 4 is the internal wiring rough schematic of another photovoltaic module of the prior art.
Fig. 5 a are a kind of structural schematic diagram of terminal box of the present invention.
Fig. 5 b are the structural schematic diagram of another terminal box of the present invention.
Fig. 5 c are the structural schematic diagram of another terminal box of the present invention.
Fig. 6 is the simple schematic diagram of structure of the terminal box using DC electronic module of the present invention.
Fig. 7 is that the photovoltaic component system of the present invention is simply illustrated using the system line of the terminal box of DC electronic module
Figure.
Fig. 8 is structure simple schematic diagram of the present invention using the terminal box of alternating electron module.
Fig. 9 is that the photovoltaic component system of the present invention is simply illustrated using the system line of the terminal box of alternating electron module
Figure.
Figure 10 is the structural schematic diagram of another terminal box of the invention.
Figure 11 is the rough schematic of the output cable connector of Figure 10.
Figure 12 is the rough schematic of the terminal box connection bus cable of another photovoltaic component system of the present invention.
Figure 13 a are the rough schematics of the dc bus of the terminal box for DC electronic module in Figure 12.
Figure 13 b are the rough schematics of the plug of the corresponding terminal box of dc bus in Figure 12.
Figure 14 is the rough schematic that the photovoltaic system in Figure 12 for DC electronic module is installed.
Figure 15 a are the rough schematics of the AC bus of the terminal box for alternating electron module in Figure 12.
Figure 15 b are the rough schematics of the plug of the corresponding terminal box of AC bus in Figure 12.
Figure 16 is the rough schematic that the photovoltaic system in Figure 12 for alternating electron module is installed.
Specific implementation mode
The embodiment of the present invention is described with detailed reference to attached drawing now.In the case of any possible, in all the appended drawings
Same or analogous part will be indicated using identical label.In addition, although the term used in the present invention is from known
It is selected in common term, but some terms mentioned in description of the invention may be applicant to be sentenced as his or her
Break and carry out selection, detailed meanings illustrate in the relevant portion of description herein.In addition, it is desirable that not only by used
Actual terms, and the meaning contained by each term is also to understand the present invention.
Fig. 5 a are a kind of structural schematic diagram of terminal box of the present invention.As shown, a kind of connecing suitable for photovoltaic module
Wire box 500 includes box body 501 and box cover 503, which includes cell piece string (not shown).
Box body 501 includes the first conducting wire welding 504 and the second conducting wire welding 505 at connection cell piece string both ends.Box body 501
Further include output lead 513, output lead 513 includes the first output lead and the second output lead.Wherein, it first, second leads
The end of wire bonding band 504,505 forms the first connecting terminal 509.First output lead and the second output lead are respectively provided with second
Connecting terminal 511.First connecting terminal 509 and the second connecting terminal 511 interval are arranged.In other words, the first connecting terminal 509 with
Second connecting terminal 511 is separated.
Box cover 503 includes electronic module 521, and electronic module 521 includes two input terminals 523 and two output ends 525.
Box body 501 can patch cooperation with box cover 503 and fix.When box body 501 and box cover 503, which patch cooperation, to be fixed so that
The input terminal 523 of electronic module 521 and the first connecting terminal 509 are electrically connected, the output end 525 and second of electronic module 521
Connecting terminal 511 is electrically connected.
Fig. 5 b are the structural schematic diagram of another terminal box of the present invention.As shown, a kind of suitable for photovoltaic module
Terminal box 500 includes box body 501 and box cover 503, which includes cell piece string (not shown).
Box body 501 includes the first conducting wire welding 504 and the second conducting wire welding 505 at connection cell piece string both ends.Box body 501
Further include output lead 513, output lead 513 includes the first output lead and the second output lead.Cell piece string includes series connection
N number of substring, and N >=2 are connected with N-1 root conducting wires welding 506 between the adjacent substring.Wherein, the first, second conducting wire
The end of welding 504,505 forms the first connecting terminal 509.Box body 501 further includes the side of the N number of bypass diode of a series connection 507
The both ends of road diode group, bypass diode set are connect with the first, second conducting wire welding 504,505 respectively.N-1 root conducting wire weldings
506 are respectively connected to the positive or negative pole of bypass diode 507, in addition to the both ends of bypass diode set are not accessed.First output is led
Line and the second output lead are respectively provided with the second connecting terminal 511.First connecting terminal 509 and the second connecting terminal 511 are spaced
Setting.In other words, the first connecting terminal 509 and the second connecting terminal 511 are to separate.
Box cover 503 includes electronic module 521, and electronic module 521 includes two input terminals 523 and two output ends 525.
Box body 501 can patch cooperation with box cover 503 and fix.When box body 501 and box cover 503, which patch cooperation, to be fixed so that
The input terminal 523 of electronic module 521 and the first connecting terminal 509 are electrically connected, the output end 525 and second of electronic module 521
Connecting terminal 511 is electrically connected.
As shown, the case where cell piece string includes concatenated 3 substrings is schematically illustrated, between adjacent substring
2 conducting wire weldings 506 are connected with, box body 501 includes the bypass diode set of 3 bypass diodes 507 of series connection.In addition to bypass
The both ends of diode group, 2 conducting wire weldings 506 are respectively connected to the positive or negative pole of bypass diode 507.Specifically, battery
The word string of piece string passes through each conducting wire welding 504,505,506 and is connected to the two poles of the earth of bypass diode 507.
Fig. 5 c are the structural schematic diagram of another terminal box of the present invention.As shown, a kind of suitable for photovoltaic module
Terminal box 500 includes box body 501 and box cover 503, which includes cell piece string (not shown).
Box body 501 includes the first conducting wire welding 504 and the second conducting wire welding 505 at connection cell piece string both ends.Box body 501
Further include output lead 513, output lead 513 includes the first output lead and the second output lead.Cell piece string includes series connection
N number of substring, and N >=2 are connected with N-1 root conducting wires welding 506 between the adjacent substring.N-1 root conducting wires welding 506 exists
Third connecting terminal 516 is formed on box body 501.Wherein, the end of the first, second conducting wire welding 504,505 forms the first wiring
Terminal 509.First output lead and the second output lead are respectively provided with the second connecting terminal 511.First connecting terminal 509 and
The setting of two connecting terminals 511 interval.
Box cover 503 includes electronic module 521, and electronic module 521 includes two input terminals 523 and two output ends 525.Box cover
503 further include the bypass diode set (not shown) of the N number of bypass diode of a series connection, the both ends of bypass diode set respectively with electricity
Two input terminals 523 of submodule 521 connect.In addition to the both ends of bypass diode set, in the positive or negative pole of bypass diode
Form the 4th connecting terminal 517.
As shown in Figure 5 c, the case where cell piece string includes concatenated 3 substrings is schematically illustrated, in adjacent substring
Between be connected with 2 conducting wire weldings, 506,2 conducting wire weldings 506 and form third connecting terminal 516 on box body 501.Box cover 503 wraps
Include the bypass diode set of 3 bypass diodes of series connection.In addition to the both ends of bypass diode set, bypass diode just
Pole or cathode form the 4th connecting terminal 517.
Box body 501 can patch cooperation with box cover 503 and fix.When box body 501 and box cover 503, which patch cooperation, to be fixed so that
The input terminal 523 of electronic module 521 and the first connecting terminal 509 are electrically connected, the output end 525 and second of electronic module 521
Connecting terminal 511 is electrically connected, and third connecting terminal 516 and the 4th connecting terminal 517 are electrically connected.
It should be noted that the effect of the interior setting bypass diode set of terminal box in previous embodiment is to work as certain batteries
These cell piece strings are skipped by bypass diode set when piece string cisco unity malfunction, so as to avoid the damage of other components
It is bad.
Electronic module 521 in previous embodiment is DC electronic module or alternating electron module.DC electronic module table
Show output is direct current, and what alternating electron module indicated output is exchange.
Electronic module 521 is the circuit module for monitoring photovoltaic module, protection circuit module, MPPT maximum power point tracking circuit mould
Block and inverter circuit mould are in the block one or more.Specifically, photovoltaic can be detected by monitoring the circuit module of photovoltaic module
The voltage and current of component, while to further include communication module can be sent to specified data center by the related data monitored
It is preserved and is analyzed.Circuit module, such as the protection circuit module with arc protection function are protected, when electric arc occurs
Entire circuit is turned off, it is almost 0 to make the output voltage of terminal box 500, ensures the safety of photovoltaic component system.Maximum power point with
Track circuit module can allow terminal box to be operated in maximum power point, provide the generated energy of photovoltaic component system.It should be understood that electric
Submodule 521 can also be the circuit module with following function, such as with GPS positioning device, can realize docking wire box or
The tracking of photovoltaic module prevents terminal box or photovoltaic module stolen.In addition, the electronic module 521 can also be simply will be defeated
Enter end 523 to connect with output end 525, is similar to the terminal box 200 of the prior art shown in Fig. 2.
When electronic module 521 is alternating electron module, electronic module 521 can be inverter.Single terminal box 500 is wrapped
The direct current output of corresponding photovoltaic module can be converted to alternating current by the inverter contained, and photovoltaic modulies multiple in this way can be in parallel
Form larger photovoltaic module AC system.
Preferably, there is label in the position that output lead is pierced by terminal box, it is convenient for user discrimination.Fig. 6 is of the invention
Using the simple schematic diagram of the structure of the terminal box of DC electronic module.As shown, terminal box 600 includes bypass diode module
607 and DC electronic module 621.It should be understood that bypass diode module 607 may include two poles of multiple concatenated bypasses
Pipe, is equivalent to the bypass diode set being connected in series by multiple bypass diodes 507 in Fig. 5 b.DC electronic module 621 it is defeated
Enter end to connect with first connecting terminal at 607 both ends of bypass diode module.The output end of DC electronic module 621 connects wiring
Second connection end of the output lead 603 of box 600.There is label, example in the position that output lead 603 is pierced by terminal box 600
Such as DC+ and DC- can be marked in the corresponding position outside terminal box 603, facilitate user discrimination, be conducive to subsequent photovoltaic group
The assembly of part system.Correspondingly, when terminal box uses alternating electron module, the position that terminal box is pierced by output lead can be with
AC signal is arranged to mark, will be described in hereinafter.
The present invention also provides a kind of photovoltaic modulies.The photovoltaic module includes any terminal box above-mentioned.Wherein, cell piece
String is electrically connected conducting wire welding, and in the case where there is bypass diode set, each word string of cell piece string passes through conducting wire welding simultaneously
It is connected to the two poles of the earth of each bypass diode of bypass diode set.
Fig. 7 is that the photovoltaic component system of the present invention is simply illustrated using the system line of the terminal box of DC electronic module
Figure.As shown, photovoltaic component system 700 includes multiple photovoltaic modulies, each photovoltaic module includes terminal box 701.Terminal box
701 electronic modules used are DC electronic module, the output end of the first output lead and the second output lead of terminal box 701
Form the first male connector 703 and the first female 705.First male connector 703 of the terminal box 701 of adjacent photovoltaic module and the first female
705 can mutually patch cooperation to be electrically connected, and tail end can access corresponding cable.
Fig. 8 is structure simple schematic diagram of the present invention using the terminal box of alternating electron module.As shown, terminal box
800 electronic modules used are alternating electron modules 821.The output of the output end connection terminal box 800 of alternating electron module 821
Conducting wire 803.It is exported at this point, terminal box 803 is exchange, most commonly firewire L and center line N.As previously mentioned, being worn in output lead
The position for going out terminal box has label.For example, AC-L and/or AC- can be marked in the corresponding position of the outside of terminal box 800
N is convenient for the discrimination of user.
Fig. 9 is that the photovoltaic component system of the present invention is simply illustrated using the system line of the terminal box of alternating electron module
Figure.As shown, photovoltaic component system 900 includes bus cable and multiple photovoltaic modulies, the terminal box 901 of photovoltaic module uses
Electronic module be alternating electron module.The output end of the output lead of terminal box 901 forms the second male connector 903 and the second female
905.Bus cable includes male connector cable 907 and female cable 909, and multiple first sockets 911 are in series on male connector cable 907,
Multiple second sockets 913 are in series on female cable 909.Wherein, the second male connector 903 and the first socket 911 can patch cooperation, shape
At electric connection.Second female 905 and the second socket 913 can patch cooperation, be electrically connected.
Further, one end of male connector cable 907 and female cable 909 is respectively connected to the firewire L and center line N of power grid, separately
Sealing cover 915 is arranged in one end, provides insulation protection.
The present invention also provides another terminal boxes.Figure 10 is the structural schematic diagram of another terminal box of the invention.Figure 11
It is the rough schematic of the output cable connector of Figure 10.With reference to figure 10,11, terminal box 1000 includes box body and box cover.Wherein, box
Body includes the multiple conducting wires welding 1005 for the multiple word strings 1009 for connecting cell piece string, is connected in series by multiple bypass diodes
Bypass diode module 1007 and output lead 1013.Each conducting wire welding 1005 is separately connected the anode of each bypass diode
Or cathode, i.e., multiple word strings 1009 are through multiple conducting wires welding 1005 and are connected to bypass diode module 1007.In bypass diode
1007 both ends of module form the first connecting terminal 1011.There are two the second connecting terminals 1015 for two tools of output lead 1013.The
One connecting terminal 1011 and the second connecting terminal 1015 interval are arranged, in other words, the first connecting terminal 1011 and the second terminals
Son 1015 is separated.Box cover includes electronic module 1017.Two input terminals of electronic module 1017 respectively with two the first wiring
Terminal 1011 is electrically connected, and two output ends of electronic module 1017 are electrically connected with two the second connecting terminals 1015 respectively.Box
Body patches cooperation with box cover and fixes.Box body can form sealing structure with box cover, and the equipment docked in wire box 1000 forms protection.Electricity
Submodule 1017 is DC electronic module or alternating electron module.Terminal box 1000 further includes cable 1103 and plug 1105.Electricity
Cable 1103 includes core wire 1003.Core wire 1003 is 2, is the first core wire and the second core wire respectively.Core wire 1003 is tape insulation layer
Conducting wire, such as copper wire, aluminum steel etc..Two output leads 1013 are electrically connected in two core wires 1003.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 two
Core wire 1003.Junction box structure with plug is convenient for the assembly of photovoltaic component system.
The present invention also provides another photovoltaic component systems.Figure 12 is connecing for another photovoltaic component system of the present invention
Wire box connects the rough schematic of bus cable.As shown, the photovoltaic component system 1200 includes bus cable 1209 and more
A terminal box above-mentioned 1201 (is equivalent to the terminal box 1000 in Figure 10).Multiple sockets are equipped on bus cable 1209
1207, socket 1207 and plug 1205 (1105) cooperation are to be electrically connected.In assembling photovoltaic component system 1200, wiring
Plug 1205 (1105) on the output cable 1203 (1103) of box 1201 is directly inserted into the socket on bus cable 1209
1207, multiple terminal boxes 1201 are inserted into multiple sockets 1207 on bus cable 1209.This kind of structure is carried suitable for the present invention
The electronic module with various functions arrived, including DC electronic module and alternating electron module, can be used this kind of connection side
Formula.
Figure 13 a are the rough schematics of the dc bus of the terminal box for DC electronic module in Figure 12.Figure 13 b are figures
The rough schematic of the plug of the corresponding terminal box of dc bus in 12.As shown, the electronic module when terminal box is direct current
When electronic module, bus cable includes the first cable 1307 and the second cable 1309, and the second cable 1309 is equipped with multiple sockets
1303, socket 1303 and the cooperation of plug 1311 are to be electrically connected.There are 2 contact pins 1305 in 1303 the inside of socket, this two are inserted
The contact pin 1315 of needle 1305 and the plug of terminal box 1311 matches.First cable 1307 is continuous, and is not connect with socket 1303.
Second cable 1309 is segmentation, every section patched by socket 1303 and plug 1311 coordinate after connect.1311 the inside of plug has
Contact pin 1315, respectively anode and cathode, correspondence are inserted into socket 1303.
Figure 14 is the rough schematic that the photovoltaic system in Figure 12 for DC electronic module is installed.As shown, plug
1405 are inserted into after the socket 1403 of bus, and the anode of 1 terminal box is just connected with the cathode of next terminal box.It is multiple
One end of wiring cassette in series, the first cable 1407 and the second cable 1409 can connect electrical equipment, such as inverter.And the other end
Tail end is can be used as, in addition direct current tail end protection cap 1401.Direct current tail end protection cap 1401 in addition to bus cable provide insulation and
Other than environmental protection, it is additionally provided with electric conductor 1403, the first cable 1407 and the second cable 1409 are connected.
Figure 15 a are the rough schematics of the AC bus of the terminal box for alternating electron module in Figure 12.Figure 15 b are figures
The rough schematic of the plug of the corresponding terminal box of AC bus in 12.As shown, when the electronic module of terminal box is exchange
When electronic module, bus cable includes third cable 1507 and the 4th cable 1509, and single socket 1503 accesses third cable
1507 and the 4th cable 1509, socket 1503 and the cooperation of plug 1505 are to be electrically connected.There are 2 contact pins in 1503 the inside of socket
1505, the contact pin 1507 in the plug 1505 of this two contact pins 1505 and terminal box matches.The third cable 1507 of bus cable
It is to maintain continuously with the 4th cable 1509, the contact pin 1505 with 1503 the inside of socket connects respectively.1505 the inside of plug has slotting
Needle 1507, respectively firewire L and center line N.
Figure 16 is the rough schematic that the photovoltaic system in Figure 12 for alternating electron module is installed.As shown, when connecing
The plug 1605 of wire box is inserted into after the socket 1603 of bus, and the identical polar output of multiple terminal boxes 1000 is just connected in parallel on bus
On the third cable 1507 and the 4th cable 1509 of cable.For example, the N outputs of terminal box connect third cable in this schematic diagram
1607, L output the 4th cables 1609 of connection.Third cable 1607 connects power grid with one end of the 4th cable 1609, and the other end
For tail end, in addition exchange tail end protection cap 1601.The direct current tail end protection cap 1601 provides insulation to bus cable and environment is protected
Shield.
A kind of new multifunctional photovoltaic component terminal box that the present invention describes, including box body and box cover have by replacing
The box cover of different electronic modules can easily realize different electronic module functions, and be convenient for changing.Light with the terminal box
Volt component has the function of direct current or alternating electron.Using the photovoltaic component system of the terminal box by corresponding bus cable just
Different direct currents or exchange conversion function may be implemented.
Those skilled in the art can be obvious, can to the present invention the above exemplary embodiments carry out various modifications and modification and
Without departing from the spirit and scope of the present invention.Accordingly, it is intended to which present invention covering is made to fall in the appended claims and its equivalence techniques
Modifications of the present invention in aspects and modification.
Claims (6)
1. a kind of photovoltaic component system, including bus cable, cable, plug and concatenated multiple photovoltaic modulies, the photovoltaic group
Part includes terminal box and cell piece string, and the terminal box includes：
Box body, including the first output lead, the second output lead and the first conducting wire welding for connecting cell piece string both ends
The first connecting terminal is formed with the end of the second conducting wire welding, the first, second conducting wire welding；First output lead and
Second output lead is respectively provided with the second connecting terminal；First connecting terminal is arranged with second connecting terminal interval；
Box cover, including electronic module, the electronic module include input terminal and output end；
The box body can patch cooperation with the box cover and fix, and make the input terminal of the electronic module and first connecting terminal
It is electrically connected, the output end of the electronic module is electrically connected with second connecting terminal；
The cable includes the first core wire and the second core wire, and first core wire and second core wire are electrically connected described
First output lead and second output lead；The plug have the first contact pin and the second contact pin, first contact pin and
First core wire and second core wire is electrically connected in second contact pin；
Wherein, the electronic module is DC electronic module or alternating electron module；
When the electronic module is DC electronic module, the bus cable includes the first cable and the second cable, and described the
Two cables are equipped with multiple sockets, and the socket and plug cooperation are to be electrically connected；
When the electronic module is alternating electron module, the output end of first output lead and the second output lead distinguishes shape
At the second male connector and the second female；The bus cable includes male connector cable and female cable, is in series on the male connector cable
Multiple first sockets are in series with multiple second sockets on the female cable, and second male connector and first socket are electrical
Connection, second female are electrically connected with second socket.
2. photovoltaic component system according to claim 1, which is characterized in that the male connector cable and the female cable
Power grid is accessed in one end, and sealing cover is arranged in the other end.
3. according to any photovoltaic component system described in claim 1 to 2, which is characterized in that the cell piece string includes series connection
N number of substring, and N >=2 are connected with N-1 root conducting wire weldings between the adjacent substring；The box body further includes a series connection N
The bypass diode set of a bypass diode, the both ends of the bypass diode set respectively with the first, second conducting wire welding
Connection；
Wherein, the N-1 roots conducting wire welding is respectively connected to the positive or negative pole of the bypass diode, removes the bypass diode
The both ends of group.
4. according to any photovoltaic component system described in claim 1 to 2, which is characterized in that the cell piece string includes series connection
N number of substring, and N >=2 are connected with N-1 root conducting wire weldings, the N-1 roots conducting wire welding is in institute between the adjacent substring
State formation third connecting terminal on box body；
The box cover includes the bypass diode set of the N number of bypass diode of a series connection, the both ends difference of the bypass diode set
It is connect with the input terminal of the electronic module, the positive or negative pole of the bypass diode forms the 4th connecting terminal, removes
The both ends of the bypass diode set；
Wherein, when the box body and the box cover, which patch cooperation, to be fixed, the third connecting terminal connects with the described 4th respectively
Line terminals are electrically connected.
5. photovoltaic component system according to claim 1, which is characterized in that the electronic module is the monitoring photovoltaic group
Circuit module, protection circuit module, MPPT maximum power point tracking circuit module and inverter circuit mould one kind or more in the block of part
Kind.
6. photovoltaic component system according to claim 1, which is characterized in that exported in first output lead and second
The position that conducting wire is pierced by the terminal box has label.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| CN201610146882.1A CN105763152B (en) | 2016-03-15 | 2016-03-15 | A kind of terminal box, photovoltaic module and its system |
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| CN105763152A CN105763152A (en) | 2016-07-13 |
| CN105763152B true CN105763152B (en) | 2018-10-30 |
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| EP3535825A1 (en) * | 2016-11-07 | 2019-09-11 | Southwire Company, LLC | Dead band direct current converter |
| DE112019000535T5 (en) * | 2018-01-25 | 2020-10-22 | Clean Energy Factory Co. , Ltd. | Solar module |
| CN108551326B (en) * | 2018-07-13 | 2024-02-02 | 天合光能股份有限公司 | Device for testing environmental pressure of photovoltaic intelligent junction box |
| CN109672404A (en) * | 2019-03-05 | 2019-04-23 | 海宁昱能电子有限公司 | A kind of intelligent photovoltaic component |
| CN113422574B (en) | 2021-05-31 | 2022-12-02 | 华为数字能源技术有限公司 | Photovoltaic module and photovoltaic system |
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| CN105048957A (en) * | 2015-06-26 | 2015-11-11 | 晶澳（扬州）太阳能科技有限公司 | Intelligent photovoltaic component multifunctional junction box |
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| CN102891200A (en) * | 2006-06-29 | 2013-01-23 | 胡贝尔和茹纳股份公司 | Connection box |
| CN102237413A (en) * | 2010-04-26 | 2011-11-09 | 杜邦公司 | Frame component of solar battery, solar battery module, solar battery system and installation method of solar battery system |
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