CN213520728U

CN213520728U - Photovoltaic is with exchanging collection flow box

Info

Publication number: CN213520728U
Application number: CN202022541168.7U
Authority: CN
Inventors: 吴小芳; 汤忠磊; 方霞东; 蔡豆豆
Original assignee: Haian Huijue Network Communication Equipment Co ltd
Current assignee: Haian Huijue Network Communication Equipment Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-06-22
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses an alternating current combiner box for photovoltaic, which comprises a box body, wherein the box body comprises a box back plate, a box top plate, a box bottom plate and two box side plates, a heightening mounting plate is fixedly arranged on the box back plate, a main circuit breaker and a plurality of breaking circuit breakers arranged in a plurality of rows are fixedly arranged on the heightening mounting plate, a combiner bar is arranged between the upper end of the main circuit breaker and the upper ends of the breaking circuit breakers, and the top end of the heightening mounting plate is lower than the combiner bar; at least two mounting guide rails are sequentially fixed on the heightening mounting plate on the left side or the right side of the breaker along the vertical direction, and fuses, lightning protection switches or surge protectors are mounted on the mounting guide rails; at least two power strip connecting ports are arranged on the box bottom plate, and a ground strip or N rows are fixedly arranged at each power strip connecting port. The utility model discloses when installation, wiring are convenient, the safety in utilization has also been guaranteed.

Description

Photovoltaic is with exchanging collection flow box

Technical Field

The utility model relates to a photovoltaic is with exchanging collection flow box.

Background

The junction box is a wiring device for ensuring orderly connection and junction functions of the photovoltaic modules in the photovoltaic power generation system, and can ensure that the photovoltaic system is easy to cut off a circuit during maintenance and inspection, thereby reducing the power failure range during failure. The bus bar box is usually provided with a number of electric components such as a main breaker, a plurality of breaking breakers, a fuse, and a bus bar, which are required to be installed and wired in a compact box space of the bus bar box. How to facilitate the installation and wiring of electrical components and ensure the use safety of electrical equipment is a problem which is always concerned in the layout design of the combiner box.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a photovoltaic is with exchanging collection flow box easy to assemble, wiring and assurance safety in utilization is provided.

In order to solve the technical problem, the technical scheme of the utility model is that: the photovoltaic alternating current combiner box comprises a box body, wherein the box body comprises a box back plate, a box top plate, a box bottom plate and two box side plates, a heightening mounting plate is fixedly arranged on the box back plate, a main breaker and a plurality of breaking breakers arranged in a row are fixedly mounted on the heightening mounting plate, a combiner bar is arranged between the upper end of the main breaker and the upper ends of the breaking breakers, and the top end of the heightening mounting plate is lower than the combiner bar; at least two mounting guide rails are sequentially fixed on the heightening mounting plate on the left side or the right side of the breaker along the vertical direction, and fuses, lightning protection switches or surge protectors are mounted on the mounting guide rails; at least two power strip connecting ports are arranged on the box bottom plate, and a ground strip or N rows are fixedly arranged at each power strip connecting port.

According to the technical scheme, the box back plate is provided with the left side and the right side of the bus bar, the left side and the right side of the bus bar are respectively and fixedly provided with an insulating connecting column, and an insulating protection plate located on the outer side of the bus bar is fixedly mounted on the insulating connecting column together.

As a preferred technical scheme, a plurality of the breaking circuit breakers are respectively arranged on two sides of the main breaker.

By adopting the technical scheme, the photovoltaic alternating current combiner box comprises a box body, wherein the box body comprises a box back plate, a box top plate, a box bottom plate and two box side plates, a heightening mounting plate is fixedly arranged on the box back plate, a main circuit breaker and a plurality of breaking circuit breakers arranged in a row are fixedly mounted on the heightening mounting plate, a combiner bar is arranged between the upper end of the main circuit breaker and the upper ends of the breaking circuit breakers, and the top end of the heightening mounting plate is lower than the combiner bar; at least two mounting guide rails are sequentially fixed on the heightening mounting plate on the left side or the right side of the breaker along the vertical direction, and fuses, lightning protection switches or surge protectors are mounted on the mounting guide rails; at least two power strip connecting ports are arranged on the box bottom plate, and a ground strip or N rows are fixedly arranged at each power strip connecting port. The utility model discloses with electric elements such as total circuit breaker, disconnected circuit breaker break away from the case backplate and install the bed hedgehopping mounting panel, the electric clearance between multiplicable electric elements and the case backplate reduces potential safety hazards such as even electricity. Simultaneously the bed hedgehopping mounting panel is less than the busbar, the circuit breaker of this bed hedgehopping so for bigger electric clearance appears between busbar and the case backplate, can be when increasing installation operating space such as bolt, further reduce potential safety hazards such as even electricity. The installation guide rails are arranged on the side of the circuit breakers, and the ground rows or the N rows and the like are arranged on the box bottom plate, so that enough installation space can be provided for connecting lines at the lower ends of the circuit breakers. The utility model discloses at installation, wiring convenience, also guaranteed safety in utilization.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

fig. 1 is a schematic structural diagram of an embodiment of the present invention, in which an insulation protection plate is illustrated in a partial sectional view;

fig. 2 is a schematic bottom view of the structure of fig. 1.

In the figure: 1-a box body; 11-a box back plate; 12-a top box panel; 13-box bottom plate; 14-box side panels; 15-ground row; 16-N rows; 17-an insulating connection post; 18-insulating protective plate; 2-raising the mounting plate; 21-total circuit breaker; 22-a breaker; 23-a busbar; 24-mounting a guide rail; 25-lightning protection switch; 26-surge protector.

Detailed Description

The invention is further explained below with reference to the drawings and examples. In the following detailed description, exemplary embodiments of the invention are described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

As shown in fig. 1 and 2, the photovoltaic ac combiner box includes a box body 1, where the box body 1 includes a box back plate 11, a box top plate 12, a box bottom plate 13, and two box side plates 14, and of course, the box body 1 is further provided with a box door and the like.

Fixed bed hedgehopping mounting panel 2 that is equipped with on the case backplate 11, bed hedgehopping mounting panel 2 accessible is in after fixed welding cushion on the case backplate 11, the bolt is installed mode on the cushion is fixed to be set up. Preferably, the raised mounting plate 2 is made of an insulating material such as PVC.

A main breaker 21 and a plurality of breaking circuit breakers 22 arranged in a row are fixedly mounted on the heightening mounting plate 2, a bus bar 23 is arranged between the upper end of the main breaker 21 and the upper ends of the breaking circuit breakers 22, and the structures of the main breaker 21, the breaking circuit breakers 22 and the bus bar 23 are well known by those skilled in the art and are not described herein again. The arrangement of the heightening mounting plate 2 can increase the electrical clearance between the electrical element and the box back plate 11, reduce the potential safety hazards such as power connection and the like, and improve the use safety.

The top end of the heightening installation plate 2 is lower than the bus bar 23, so that the heightened main breaker 21 and the heightened sub-breaker 22 enable a larger electrical gap to be formed between the bus bar 23 and the box back plate 11, installation operation space such as bolts can be increased, potential safety hazards such as power connection can be further reduced, and use safety can be further improved.

In the present embodiment, the plurality of the breaker breakers 22 are respectively arranged at two sides of the main breaker 21, so that the total of the actual connection lengths of the bus bars 23 between each breaker 22 and the main breaker 21 is reduced, which can reduce the heat loss on the bus bars 23, further reduce the occurrence of electrical accidents, and improve the use safety.

At least two installation guide rails 24 are sequentially fixed on the heightening installation plate 2 on the left side or the right side of the breaker 22 along the vertical direction, and a fuse, a lightning protection switch 25 or a surge protector 26 is installed on the installation guide rails 24. The installation guide rail 24 is arranged on the side, so that electrical elements such as a fuse, a lightning protection switch 25, a surge protector 26 and the like can avoid the connection of the lower ends of the main breaker 21 and the breaking breaker 22, and a space is provided for the connection of the main breaker and the breaking breaker. The connection of the mounting rail 24 to the electrical components thereon is well known to those skilled in the art and will not be described in detail herein and is not specifically illustrated in the figures. The mounting rails 24 are shown in two in this embodiment, and one of them is mounted with a lightning protection switch 25 and the other is mounted with a surge protector 26. Of course, one, three or more mounting rails 24 may be provided according to actual needs, and electrical components such as fuses, lightning protection switches 25 or surge protectors 26 may be selectively mounted on each mounting rail 24 according to actual needs.

At least two power strip connecting ports are formed in the box bottom plate 13, and a ground strip 15 or an N strip 16 is fixedly installed at each power strip connecting port. The bottom of the

rows

15 and 16 in this embodiment is also installed to provide sufficient wiring space for the wiring at the lower end of each breaker.

In addition, the box back plate 11 of the present embodiment is provided with insulating connection posts 17 respectively and fixedly disposed on the left side and the right side of the bus bar 23, and the insulating protection plates 18 located on the outer sides of the bus bar 23 are commonly and fixedly mounted on the insulating connection posts 17. Due to the arrangement of the insulation protection plate 18, direct contact with the bus bar 23 and the like during use can be avoided, and operation safety is improved.

This embodiment can guarantee the safety in utilization when installation, wiring are convenient through reasonable incasement overall arrangement, has very high spreading value.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Photovoltaic is with exchanging collection flow box, including the box, the box includes case backplate, roof board, bottom of the case board and two case curb plates, its characterized in that: a heightening mounting plate is fixedly arranged on the box back plate, a main circuit breaker and a plurality of breaking circuit breakers which are arranged in a row are fixedly arranged on the heightening mounting plate, a bus bar is arranged between the upper end of the main circuit breaker and the upper ends of the breaking circuit breakers, and the top end of the heightening mounting plate is lower than the bus bar; at least two mounting guide rails are sequentially fixed on the heightening mounting plate on the left side or the right side of the breaker along the vertical direction, and fuses, lightning protection switches or surge protectors are mounted on the mounting guide rails; at least two power strip connecting ports are arranged on the box bottom plate, and a ground strip or N rows are fixedly arranged at each power strip connecting port.

2. The ac combiner box for photovoltaic of claim 1, wherein: the box back plate is located the left side and the right side of the busbar are respectively and fixedly provided with an insulating connecting column, and an insulating protection plate located on the outer side of the busbar is fixedly mounted on the insulating connecting column together.

3. The ac combiner box for photovoltaic of claim 1, wherein: and the plurality of breaking circuit breakers are respectively arranged at two sides of the main circuit breaker.