CN108011309A - A kind of photovoltaic grid connection box - Google Patents
A kind of photovoltaic grid connection box Download PDFInfo
- Publication number
- CN108011309A CN108011309A CN201711402315.9A CN201711402315A CN108011309A CN 108011309 A CN108011309 A CN 108011309A CN 201711402315 A CN201711402315 A CN 201711402315A CN 108011309 A CN108011309 A CN 108011309A
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- CN
- China
- Prior art keywords
- overvoltage
- protector
- electrically connected
- undervoltage
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000001012 protector Effects 0.000 claims abstract description 78
- 238000005192 partition Methods 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
- H02B1/48—Mounting of devices therein
-
- H02J3/383—
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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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a kind of photovoltaic grid connection box,Including housing,The housing is internally provided with partition plate,Housing is divided into upper box and lower box by the partition plate,The back side of the upper box and lower box has threading hole,The hull outside is fixedly connected with fixed seat,The side of the upper box and lower box is hinged with chamber door,Lock is installed on the chamber door,First overvoltage-undervoltage protector is installed in the upper box,Second overvoltage-undervoltage protector and reclosing overvoltage-undervoltage protector,Installation having air switch in the lower box,Surge Protector,Protection switch,Breaker and boosting type inverter,Photovoltaic inlet wire is electrically connected with the air switch,It is electrically connected between the opposite side and Surge Protector of the air switch,The opposite side of the Surge Protector is electrically connected with breaker,Ammeter is electrically connected with the breaker,Invention design is reasonable,It is applied widely,Security is good,Compact,Easy to construct,It is worth promoting.
Description
Technical field
The present invention relates to electronic box technical field, is specially a kind of photovoltaic grid connection box.
Background technology
In recent years, distributed photovoltaic power generation by its capacity is small, voltage class is low, close to load, it is small etc. to electric network influencing
Advantage, is widely used to industrial premises, public building and resident roof.As the important application mode of solar power generation,
Distributed photovoltaic power generation can make full use of solar energy existing feature extensively, avoid concentrating the place limiting factor built, especially
Its intensive current conditions of living in face of China central and east, its widespread adoption prospect are extremely wide.
The electricity that current solar power generation is sent using silicon photocell is direct current, is changed into three-phase alternating current by inverter
It is connected to the grid, has been loaded with anti-isolated island device on inverter, but inverter is realized automatically and power grid by internal contactor
Suspension and grid-connected, in order to ensure the life security of service personnel, power administration's regulation " must be provided with obvious cut-off point ", that is, have
The manual equipments such as knife switch, section breaker, existing pressure-failure protector is only single-phase or three-phase current, and the scope of application is small,
Precision is low.
With the aggravation of environmental pollution, people's door increasingly payes attention to the development of new energy, and photovoltaic generation is because being reproducible clear
The series of advantages such as the clean energy have obtained more and more utilizations, and especially this several years distributed photovoltaic power generations rapidly rise
And development, but existing civilian photovoltaic power generation grid-connecting case there is a problem, such as the patent of Application No. 201520868100.6,
Including babinet, casing top sets rain cover, and four, babinet rear portion vertex sets a wall built-up part respectively, and babinet is double door
Structure, wherein a side door is locked using lead, another side door uses triangulation chain, and the door with lead-sealing lock is equipped with transparent window, babinet
Bottom is equipped with entrance hole, outlet hole and ground hole, and the inner side that transparent window is corresponded in box house is equipped with kilowatt-hour meter, although knot
Structure is simple, but does not apply to the grid-connected of a variety of electric currents, and therefore, inventing a kind of photovoltaic, to solve the above problems, have very much must with grid connection box
Will.
The content of the invention
It is an object of the invention to provide a kind of photovoltaic grid connection box, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical solution：A kind of photovoltaic grid connection box, including housing, it is described
Housing is internally provided with partition plate, and housing is divided into upper box and lower box, the back of the body of the upper box and lower box by the partition plate
Face has threading hole, and the hull outside is fixedly connected with fixed seat, and the side of the upper box and lower box is hinged with
Chamber door, is provided with lock on the chamber door, the first overvoltage-undervoltage protector, the second overvoltage-undervoltage protector is provided with the upper box
With reclosing overvoltage-undervoltage protector, installation having air switch in the lower box, Surge Protector, protection switch, breaker and
Boosting type inverter, is electrically connected with photovoltaic inlet wire, the opposite side and surge protection of the air switch on the air switch
It is electrically connected between device, the opposite side of the Surge Protector is electrically connected with breaker, is electrically connected with the breaker
Ammeter.
Preferably, boosting type inverter is electrically connected with the output terminal of the ammeter, the boosting type inverter powers on
Property is connected with protection switch.
Preferably, it is electrically connected between the output terminal of the protection switch and the distribution box of user.
Preferably, the fixed seat on be provided with bolt hole, and bolt hole is fixed by expansion bolt.
Preferably, the first overvoltage-undervoltage protector and the protection of the second overvoltage/undervoltage are also electrically connected with the boosting type inverter
Device, first overvoltage-undervoltage protector and the second overvoltage-undervoltage protector are respectively single-phase electricity, three-phase electricity pressure-failure protector, and described
It is electrically connected between one overvoltage-undervoltage protector and the second overvoltage-undervoltage protector and reclosing overvoltage-undervoltage protector.
Preferably, the housing is surface galvanized sheet housing.
Preferably, observation window is provided with the chamber door, and observation window is transparent plastics material.
Compared with prior art, beneficial effects of the present invention are as follows：The photovoltaic grid connection box, by the housing of setting,
Housing is internally provided with partition plate, and housing is divided into upper box and lower box by partition plate, and the back side of upper box and lower box is opened respectively
Have threading hole, hull outside is fixedly connected with fixed seat, is provided with bolt hole in fixed seat, and bolt hole by expansion bolt into
Row is fixed, convenient that housing is fixed, and chamber door is hinged with the side of upper box and lower box, lock is provided with chamber door,
It is convenient to be locked to babinet, the first overvoltage-undervoltage protector, the second overvoltage-undervoltage protector and reclosing overvoltage/undervoltage are installed in upper box
Protector, the interior installation having air switch of lower box, Surge Protector, protection switch, breaker and boosting type inverter, air are opened
Shut and be electrically connected with photovoltaic inlet wire, be electrically connected between the opposite side and Surge Protector of air switch, Surge Protector
Opposite side is electrically connected with breaker, and ammeter is electrically connected with breaker, and is also electrically connected with boosting type inverter
One overvoltage-undervoltage protector and the second overvoltage-undervoltage protector, the first overvoltage-undervoltage protector and the second overvoltage-undervoltage protector are respectively single-phase
Electricity, three-phase electricity pressure-failure protector, the first overvoltage-undervoltage protector and the second overvoltage-undervoltage protector and reclosing overvoltage-undervoltage protector it
Between be electrically connected, play a good protective effect, housing is surface galvanized sheet housing, has good structural strength, the invention
Design is reasonable, and applied widely, security is good, compact, easy to construct, is worth promoting.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the electric connection structure schematic diagram of the present invention；
Fig. 3 is the local electric connection structure schematic diagram of the present invention.
In figure：1 housing, 2 partition plates, 3 upper boxes, 4 lower boxes, 5 threading holes, 6 chamber doors, 7 locks, 8 fixed seats, 9 first mistakes
Pressure-failure protector, 10 second overvoltage-undervoltage protectors, 11 reclosing overvoltage-undervoltage protectors, 12 air switches, 13 Surge Protectors, 14
Protection switch, 15 breakers, 16 boosting type inverters, 17 ammeters.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
- 3 are please referred to Fig.1, a kind of photovoltaic grid connection box, including housing 1, the housing 1 are internally provided with partition plate 2, institute
State partition plate 2 and divide housing 1 and have threading hole 5 for upper box 3 and lower box 4, the back side of the upper box 3 and lower box 4,
The outside of housing 1 is fixedly connected with fixed seat 8, and the side of the upper box 3 and lower box 4 is hinged with chamber door 6, the chamber door
Lock 7 is installed on 6, the first overvoltage-undervoltage protector 9, the second overvoltage-undervoltage protector 10 are installed in the upper box 3 and overlapped
Lock overvoltage-undervoltage protector 11, the interior installation having air switch 12 of the lower box 4, Surge Protector 13, protection switch 14, breaker
15 and boosting type inverter 16, photovoltaic inlet wire, the opposite side of the air switch 12 are electrically connected with the air switch 12
It is electrically connected between Surge Protector 13, the opposite side of the Surge Protector 13 is electrically connected with breaker 15, described disconnected
Ammeter 17 is electrically connected with road device 15.
Specifically, boosting type inverter 16 is electrically connected with the output terminal of the ammeter 17, the boosting type inverter
Protection switch 14 is electrically connected with 16.
Specifically, it is electrically connected between the output terminal of the protection switch 14 and the distribution box of user.
Specifically, the fixed seat 8 on be provided with bolt hole, and bolt hole is fixed by expansion bolt.
Specifically, the first overvoltage-undervoltage protector 9 and the second overvoltage/undervoltage are also electrically connected with the boosting type inverter 16
Protector 10,9 and second overvoltage-undervoltage protector 10 of the first overvoltage-undervoltage protector are respectively single-phase electricity, three-phase electricity under-voltage protection
Device, electrically connects between 9 and second overvoltage-undervoltage protector 10 of the first overvoltage-undervoltage protector and reclosing overvoltage-undervoltage protector 11
Connect.
Specifically, the housing 1 is surface galvanized sheet housing.
Specifically, observation window is provided with the chamber door 6, and observation window is transparent plastics material.
Operation principle：The photovoltaic grid connection box, in use, by the housing 1 of setting, housing 1 be internally provided with every
Plate 2, partition plate 2 divide housing 1 for upper box 3 and lower box 4, and the back side of upper box 3 and lower box 4 has threading hole 5, shell
The outside of body 1 is fixedly connected with fixed seat 8, and bolt hole is provided with fixed seat 8, and bolt hole is fixed by expansion bolt,
It is convenient that housing is fixed, chamber door 6 is hinged with the side of upper box 3 and lower box 4, lock 7 is installed on chamber door 6, side
Just locked to babinet, it is excessively deficient to be provided with the first overvoltage-undervoltage protector 9, the second overvoltage-undervoltage protector 10 and reclosing in upper box 3
Protector 11 is pressed, having air switch 12, Surge Protector 13, protection switch 14, breaker 15 and boosting type are installed in lower box 4
Inverter 16, is electrically connected with photovoltaic inlet wire on air switch 12, between the opposite side and Surge Protector 13 of air switch 12
It is electrically connected, the opposite side of Surge Protector 13 is electrically connected with breaker 15, ammeter 17 is electrically connected with breaker 15,
The first overvoltage-undervoltage protector 9 and the second overvoltage-undervoltage protector 10, the first overvoltage/undervoltage are also electrically connected with boosting type inverter 16
9 and second overvoltage-undervoltage protector 10 of protector respectively single-phase electricity, three-phase electricity pressure-failure protector, 9 He of the first overvoltage-undervoltage protector
It is electrically connected, plays a good protective effect between second overvoltage-undervoltage protector 10 and reclosing overvoltage-undervoltage protector 11, housing 1
For surface galvanized sheet housing, there is good structural strength, invention design is reasonable, and applied widely, security is good, small
Ingeniously, easy to construct, it is worth promoting.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention's
Within protection domain.
Claims (7)
1. a kind of photovoltaic grid connection box, including housing (1), it is characterised in that：The housing (1) is internally provided with partition plate (2),
Housing (1) is divided into the back side point of upper box (3) and lower box (4), the upper box (3) and lower box (4) by the partition plate (2)
It is not provided with threading hole (5), is fixedly connected with fixed seat (8) on the outside of the housing (1), the upper box (3) and lower box (4)
Side is hinged with chamber door (6), and lock (7) is provided with the chamber door (6), the first overvoltage/undervoltage is provided with the upper box (3)
Protector (9), the second overvoltage-undervoltage protector (10) and reclosing overvoltage-undervoltage protector (11), the lower box (4) is interior to be provided with
Air switch (12), Surge Protector (13), protection switch (14), breaker (15) and boosting type inverter (16), the sky
Photovoltaic inlet wire is electrically connected with air cock (12), it is electric between the opposite side and Surge Protector (13) of the air switch (12)
Property connection, the opposite side of the Surge Protector (13) is electrically connected with breaker (15), electrically connects on the breaker (15)
It is connected to ammeter (17).
A kind of 2. photovoltaic grid connection box according to claim 1, it is characterised in that：The output terminal of the ammeter (17) powers on
Property is connected with boosting type inverter (16), and protection switch (14) is electrically connected with the boosting type inverter (16).
A kind of 3. photovoltaic grid connection box according to claim 2, it is characterised in that：The output terminal of the protection switch (14)
It is electrically connected between the distribution box of user.
A kind of 4. photovoltaic grid connection box according to claim 1, it is characterised in that：Spiral shell is provided with the fixed seat (8)
Keyhole, and bolt hole is fixed by expansion bolt.
A kind of 5. photovoltaic grid connection box according to claim 1, it is characterised in that：On the boosting type inverter (16) also
Be electrically connected with the first overvoltage-undervoltage protector (9) and the second overvoltage-undervoltage protector (10), first overvoltage-undervoltage protector (9) and
Second overvoltage-undervoltage protector (10) is respectively single-phase electricity, three-phase electricity pressure-failure protector, first overvoltage-undervoltage protector (9) and
It is electrically connected between two overvoltage-undervoltage protectors (10) and reclosing overvoltage-undervoltage protector (11).
A kind of 6. photovoltaic grid connection box according to claim 1, it is characterised in that：The housing (1) is surface galvanized sheet
Housing.
A kind of 7. photovoltaic grid connection box according to claim 1, it is characterised in that：Observation is provided with the chamber door (6)
Window, and observation window is transparent plastics material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711402315.9A CN108011309A (en) | 2017-12-22 | 2017-12-22 | A kind of photovoltaic grid connection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711402315.9A CN108011309A (en) | 2017-12-22 | 2017-12-22 | A kind of photovoltaic grid connection box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108011309A true CN108011309A (en) | 2018-05-08 |
Family
ID=62060574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711402315.9A Withdrawn CN108011309A (en) | 2017-12-22 | 2017-12-22 | A kind of photovoltaic grid connection box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108011309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879761A (en) * | 2018-06-23 | 2018-11-23 | 安徽富煌电控设备有限公司 | A kind of grid-connected cabinet of sensitivity self-resetting type |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205944799U (en) * | 2016-08-17 | 2017-02-08 | 苏州中亿能新能源科技有限公司 | Distributing type grid -connected PV block terminal |
-
2017
- 2017-12-22 CN CN201711402315.9A patent/CN108011309A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205944799U (en) * | 2016-08-17 | 2017-02-08 | 苏州中亿能新能源科技有限公司 | Distributing type grid -connected PV block terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879761A (en) * | 2018-06-23 | 2018-11-23 | 安徽富煌电控设备有限公司 | A kind of grid-connected cabinet of sensitivity self-resetting type |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180508 |
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| WW01 | Invention patent application withdrawn after publication |