CN207218261U

CN207218261U - The grid-connected case of family expenses

Info

Publication number: CN207218261U
Application number: CN201720962299.8U
Authority: CN
Inventors: 林雯雯; 王军; 车向辉
Original assignee: Zhejiang Fanrong Electric Appliances Co Ltd
Current assignee: Zhejiang Fanrong Electric Appliances Co Ltd
Priority date: 2017-08-03
Filing date: 2017-08-03
Publication date: 2018-04-10
Anticipated expiration: 2027-08-03

Abstract

The utility model belongs to photovoltaic electric power equipment technical field, more particularly to a kind of grid-connected case of family expenses.It is high that it solves existing for prior art cost, the technical problem such as is not easy to popularize.The grid-connected case of this family expenses includes open box body, there is dividing plate in described box body, tray interior is separated into reader chamber and operating room by described dividing plate, described dividing plate is provided with wire guide, metering ammeter provided with Electricity Federation and urban electric power switch in described reader chamber, the Surge Protector of Electricity Federation successively is provided with described operating room, Self-recover overvoltage-undervoltage protector, miniature circuit breaker, disconnecting switch, Electricity Federation between described disconnecting switch and metering ammeter, the metering ammeter of reader chamber is connected with national grid, the miniature circuit breaker of operating room is connected with the photovoltaic DC-to-AC converter outside box body.Compared with prior art, the utility model advantage is：Simple in construction, cost is not high, and popularization is convenient.

Description

The grid-connected case of family expenses

Technical field

The utility model belongs to photovoltaic electric power equipment technical field, more particularly to a kind of grid-connected case of family expenses.

Background technology

In recent years, national departments concerned pays much attention to the development of photovoltaic industry and the popularization of distributed photovoltaic power generation system. As long as the maximum advantage of photovoltaic generation is exactly that the good place of solar irradiation can be used, various Huimin policies are assigned, encourage people Using photovoltaic, new energy is used.Photovoltaic power generation plate not only is installed in the vast area in Plain, even resident's roof, is all installed too Positive energy cell panel, becomes in one slight " power station ".But grid-connected is problem, the meeting in large-scale photo-voltaic power generation station Equipped with large-scale grid-connection device, integrated box-type substation can will be grid-connected, and configure this in ordinary residential building Kind box-type substation cost is higher, can not popularize.

In order to solve the problems, such as that prior art is present, people have carried out long-term exploration, it is proposed that miscellaneous solution Scheme.For example, Chinese patent literature discloses a kind of grid-connected power distribution cabinet of distributed photovoltaic, [application number：201320682737.7] Including：The dismountable cabinet of forward and backward cover and the power supply unit in the cabinet, the power supply unit include:It can tap into The breaker of line, the killer switch being connected with breaker output end, the killer switch output end can leading-out wire, the cabinet Multiple power supply units are provided with vivo.

Above-mentioned scheme improves the subproblem of prior art to a certain extent, and still, the program is also at least present Following defect：Cost is high, is unsuitable for civilian.

The content of the invention

The purpose of this utility model is in view of the above-mentioned problems, providing a kind of simple in construction and ventilation effect good family expenses photovoltaic Grid connection box.

To reach above-mentioned purpose, the utility model employs following technical proposal：The grid-connected case of this family expenses, mainly includes Open box body, described box body is interior to have dividing plate, and tray interior is separated into reader chamber and operating room by described dividing plate, described Dividing plate be provided with wire guide, the metering ammeter provided with Electricity Federation and urban electric power switch in described reader chamber, in described operating room Surge Protector, Self-recover overvoltage-undervoltage protector provided with Electricity Federation successively, miniature circuit breaker, disconnecting switch, described keeps apart Close Electricity Federation, Electricity Federation between the metering ammeter of reader chamber and urban electric power switch, urban electric power switch and national grid phase between metering ammeter Even, the wechat breaker in operating room is connected with the photovoltaic DC-to-AC converter outside box body.An only box size, it is simple in construction, only Have two small spaces of reader chamber and operating room, production cost is low, can popularize it is civilian, though build is small, be used for receive photovoltaic Inversion and the essential electronic element for being sent to civil power all possess, and more can completely carry out solar photovoltaic utilization.

In the above-mentioned grid-connected case of family expenses, the open-mouth of described box body, which has, simultaneously closes reader chamber and operating room The lid of conjunction, described lid, which is located at reader chamber side, has reading window, and described lid is located at operating room side Provided with operation door.

In the above-mentioned grid-connected case of family expenses, described reading window is embedded in lid and reading window is visual transparent material Material is made, and described lid, which is located at operating room side, has a gathering hole, described operation door hinge be connected to gathering hole side and It can be closed on gathering hole.

Have in the above-mentioned grid-connected case of family expenses, on described box body and sent what reader chamber was connected with box portion outside Power port, there is the transmission of electricity mouth that operating room is connected with box portion outside on described box body.

In the above-mentioned grid-connected case of family expenses, described power transmission mouth and intraoral side of transmitting electricity all are provided with water proof ring.

In the above-mentioned grid-connected case of family expenses, the open-mouth of described box body peripherally and outwardly extends to be formed in box body The stage portion of side, described lid outer, which peripherally and outwardly extends, to be formed shape size and can be closed to just on the outside of the open-mouth of box body Expanding part, there is slot on the inside of described expanding part, the shape size of described slot is adapted with the upper edge of box body.

In the above-mentioned grid-connected case of family expenses, be spirally connected fixation between described lid and box body.

In the above-mentioned grid-connected case of family expenses, described dividing plate both sides are plugged on inboard wall of cartridge.

In the above-mentioned grid-connected case of family expenses, described dividing plate bottom is provided with some arcuate sockets, described arcuate socket with The inwall of box body surrounds to form described wire guide.

Compared with prior art, it is the advantages of this family expenses grid-connected case：An only box size, structure letter Single, only two small spaces of reader chamber and operating room, production cost is low, can popularize civilian, though build is small, is used to receive Photovoltaic inversion and the essential electronic element for being sent to civil power all possess, and more can completely carry out solar photovoltaic utilization, waterproof effect Fruit is preferable, and convenient disassembly, simple in construction.

Brief description of the drawings

Fig. 1 is schematic diagram when lid provided by the utility model is opened.

Fig. 2 is schematic diagram when lid provided by the utility model is closed.

Fig. 3 is box body side view provided by the utility model.

Fig. 4 is box body bottom schematic view provided by the utility model.

Fig. 5 is tray interior sectional view provided by the utility model.

Fig. 6 is circuit diagram provided by the utility model.

In figure, box body 1, dividing plate 2, reader chamber 3, operating room 4, wire guide 5, metering ammeter 6, urban electric power switch 7, surge protection Device 8, Self-recover overvoltage-undervoltage protector 9, miniature circuit breaker 10, disconnecting switch 11, lid 12, reading window 13, operation door 14, operation Mouth 15, power transmission mouth 16, transmission of electricity mouth 17, stage portion 19, expanding part 20, slot 21, arcuate socket 22.

Embodiment

The utility model is described in more detail with reference to the accompanying drawings and detailed description.

As shown in figures 1 to 6, the grid-connected case of this family expenses includes open box body 1, has dividing plate 2, institute in described box body 1 The dividing plate 2 stated will be separated into reader chamber 3 and operating room 4 inside box body 1, described dividing plate 2 is provided with wire guide 5, described reading Metering ammeter 6 provided with Electricity Federation and urban electric power switch 7 in number room 3, the interior Surge Protector for being provided with Electricity Federation successively of described operating room 4 8th, Self-recover overvoltage-undervoltage protector 9, miniature circuit breaker 10, disconnecting switch 11, between described disconnecting switch 11 and metering ammeter 6 Electricity Federation, Electricity Federation between the metering ammeter 6 of reader chamber 3 and urban electric power switch 7, urban electric power switch 7 is connected with national grid, in operating room 4 Miniature circuit breaker 10 be connected with the photovoltaic DC-to-AC converter outside box body 1.Surge Protector 8, the self-resetting type having in box body 1 are excessively deficient Pressure protector 9, miniature circuit breaker 10, disconnecting switch 11 and metering ammeter 6 and urban electric power switch 7 be comparison it is basic it is grid-connected electrically Element, converged in and reminded in less box body 1, cost is not high, convenient disassembly, and conveniently moving, and popularization difficulty is little. Wherein Surge Protector 8, Self-recover overvoltage-undervoltage protector 9, miniature circuit breaker 10, disconnecting switch 11 contribute to the guarantor to circuit Shield and stably, and metering ammeter 6 be the certification of Guo Wang power supply administrations bidirectional measuring ammeter 6, for output current calculating read. The grid-connected case of the family expenses is primarily adapted for use in resident roof small hydropower station photovoltaic distribution and used, installed capacity from 3-20kw, Go for single-phase or three alternating currents.Secondary grid connection box is generally mounted to outdoor, mainly by SMC materials and stainless steel It is made, intensity is higher.

Further, the open-mouth of box body 1 has the lid 12 for simultaneously closing reader chamber 3 and operating room 4, described box Lid 12, which is located at the side of reader chamber 3, has reading window 13, can directly read what is shown in metering ammeter 6 through reading window 13 Flow.Described lid 12 is located at the side of operating room 4 and is provided with operation door 14.Reading window 13 is embedded in lid 12 and reading Window 13 is made up of visual transparent material, and the visual transparent material can be glass or transparent plastic film or other are transparent The material that light may pass through.Described lid 12, which is located at the side of operating room 4, has gathering hole 15, and described operation door 14 is cut with scissors It is connected to the side of gathering hole 15 and can be closed on gathering hole 15.Gathering hole 15 is set to can be used for the electric member in operating room 4 Part is operated, and carries out the closure or opening of valve, or element replacement, and at nominal conditions, operation door 14 can be closed Close on gathering hole 15, avoid aqueous vapor or insect from entering damage electrical equipment in operating room 5.

Preferably, have on box body 1 by reader chamber 3 and the power transmission mouth 16 being connected outside box body 1, described box body Have operating room 4 and the transmission of electricity mouth 17 that is connected outside box body 1 on 1.Power transmission mouth 16 and the inner side of transmission of electricity mouth 17 are all provided with waterproof Circle.Electric current in reader chamber 3 by metering is sent to state's net by electric wire or cable by power transmission mouth 16, and by mouth 17 of transmitting electricity by light Electric current obtained by volt inversion, which is sent into operating room 5, carries out simultaneously net operation.

In the present embodiment, the open-mouth of box body 1 peripherally and outwardly extends the stage portion 19 to be formed positioned at the inner side of box body 1, institute The outer of lid 12 stated peripherally and outwardly extends to form the expanding part that shape size can be closed on the outside of the open-mouth of box body 1 just 20, the described inner side of expanding part 20 has slot 21, and the shape size of described slot 21 is adapted with the upper edge of box body 1.Box Be spirally connected fixation between lid 12 and box body 1.When lid 12 is closed on box body 1, slot 21 is plugged on edge on box body 1, shape just Into preferable waterproof, and being resisted against on the inside of slot 21 in stage portion 19 also has certain Undertaking effect, improves structural strength. The both sides of dividing plate 2 are plugged on the inwall of box body 1.Dividing plate 2 can be extracted out or inserted.The bottom of dividing plate 2 is provided with some arcuate sockets 22, described The inwall of arcuate socket 22 and box body 1 surround to form described wire guide 5.Need into during the regulation of row conductor, can be by dividing plate 2 Extract out, discharge the wire in wire guide 5, after circuit is adjusted, then dividing plate 2 reinserted, and wire is snapped onto again In wire guide 5.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Although box body 1, dividing plate 2, reader chamber 3, operating room 4, wire guide 5, metering ammeter 6, city have more been used herein Electric switch 7, Surge Protector 8, Self-recover overvoltage-undervoltage protector 9, miniature circuit breaker 10, disconnecting switch 11, lid 12, reading window 13rd, door 14, gathering hole 15, power transmission mouth 16, transmission of electricity mouth 17, water proof ring 18, stage portion 19, expanding part 20, slot 21, arc are operated The grade term of hole 22, but it is not precluded from the possibility using other terms.It is used for the purpose of more easily describing using these terms With explanation essence of the present utility model；Being construed as any additional limitation is disagreed with the utility model spirit The back of the body.

Claims

1. a kind of grid-connected case of family expenses, including open box body (1), it is characterised in that there is dividing plate in described box body (1) (2), described dividing plate (2) will be separated into reader chamber (3) and operating room (4) inside box body (1), and described dividing plate (2) is provided with Wire guide (5), described reader chamber (3) interior metering ammeter (6) and urban electric power switch (7) provided with Electricity Federation, described operating room (4) It is interior to be provided with the Surge Protector (8) of Electricity Federation, Self-recover overvoltage-undervoltage protector (9), miniature circuit breaker (10), disconnecting switch successively (11), Electricity Federation between described disconnecting switch (11) and metering ammeter (6), the metering ammeter (6) of reader chamber (3) and urban electric power switch (7) Electricity Federation between, urban electric power switch (7) are connected with national grid, and the miniature circuit breaker (10) in operating room (4) and box body (1) are outside Photovoltaic DC-to-AC converter be connected.

2. the grid-connected case of family expenses according to claim 1, it is characterised in that the open-mouth of described box body (1) has The lid (12) for simultaneously closing reader chamber (3) and operating room (4), described lid (12) are located at reader chamber (3) side With reading window (13), described lid (12) is located at operating room (4) side and is provided with operation door (14).

3. the grid-connected case of family expenses according to claim 2, it is characterised in that described reading window (13) is embedded in lid (12) in and reading window (13) is made up of visual transparent material, and described lid (12), which is located at operating room (4) side, to be had Gathering hole (15), described operation door (14) are articulated with gathering hole (15) side and can be closed on gathering hole (15).

4. the grid-connected case of family expenses according to claim 3, it is characterised in that have on described box body (1) by reading The power transmission mouth (16) being connected outside room (3) and box body (1), have operating room (4) and box body (1) on described box body (1) The transmission of electricity mouth (17) that outside is connected.

5. the grid-connected case of family expenses according to claim 4, it is characterised in that described power transmission mouth (16) and transmission of electricity mouth (17) inner side is all provided with water proof ring.

6. the grid-connected case of family expenses according to claim 2, it is characterised in that the open-mouth of described box body (1) is circumferential The stage portion (19) formed to external expansion on the inside of box body (1), described lid (12) outer peripherally and outwardly extends to form shape Shape size can be closed to the expanding part (20) on the outside of the open-mouth of box body (1) just, have on the inside of described expanding part (20) and insert Groove (21), the shape size of described slot (21) are adapted with the upper edge of box body (1).

7. the grid-connected case of family expenses according to claim 6, it is characterised in that described lid (12) and box body (1) it Between be spirally connected fixation.

8. the grid-connected case of family expenses according to claim 2, it is characterised in that described dividing plate (2) both sides are plugged in box On body (1) inwall.

9. the grid-connected case of family expenses according to claim 8, it is characterised in that described dividing plate (2) bottom is provided with some The inwall of arcuate socket (22), described arcuate socket (22) and box body (1) surrounds to form described wire guide (5).