CN212324059U

CN212324059U - Direct current collection flow box

Info

Publication number: CN212324059U
Application number: CN202021744239.7U
Authority: CN
Inventors: 刘业军; 金宝
Original assignee: Anhui Canbang Electric Co ltd
Current assignee: Anhui Canbang Electric Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-01-08
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a direct current header box, which comprises a box body, wherein a switch piece is arranged in the box body, and the switch piece is provided with a wiring end; the accommodating piece is arranged on the outer wall of the box body, and a live display is installed on the wall of the accommodating piece; one end of the conductor is connected to the wiring end of the switch piece, and the other end of the conductor penetrates through the thickness of the wall of the box body and extends into the accommodating piece; the containing piece is detachably mounted on the outer wall of the box body, and sealant is filled at the joint of the containing piece and the box body. The utility model discloses an install the holding piece in the outer wall department of box to reached can be at the outside operation requirement of direct wiring of box, great improvement use convenient degree, simultaneously, still install electrified display on the holding piece, make operating personnel can be when operating for implementing whether electrified surveyability has improved the security and the efficiency of operation in the box.

Description

Direct current collection flow box

Technical Field

The utility model relates to the field of photovoltaic technology, specifically a direct current collection flow box.

Background

With the support of the country to the photovoltaic new energy, the photovoltaic new energy products have developed rapidly in recent years, the photovoltaic direct current combiner box matched with the photovoltaic new energy products is also used in large quantity, and enterprises for producing the photovoltaic combiner boxes are also increasing. The junction box is applied to electrical equipment of a photovoltaic power generation system and is mainly responsible for transmitting direct current produced by a photovoltaic module to a photovoltaic inverter after the direct current is converged. The importance of photovoltaic combiner boxes as devices in photovoltaic systems that have been turned on and off is becoming increasingly important.

Along with photovoltaic direct current collection flow box's application is more and more, and the size of collection flow box is done more and more littlely, when the field installation, because the electric current that inserts output cable often is very big, the cable is generally comparatively thick, and bending radius is also very big, and the wiring is very inconvenient. These all can produce very big influence to the long-term steady operation of collection flow box, the routine maintenance of fortune dimension personnel, the after sales maintenance of collection flow box producer, increased more human cost and material resources cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direct current collection flow box to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a direct current collection flow box comprises a box body, wherein a switch piece is arranged in the box body, and the switch piece is provided with a wiring end; the accommodating piece is arranged on the outer wall of the box body, and a live display is installed on the wall of the accommodating piece; one end of the conductor is connected to the wiring end of the switch piece, and the other end of the conductor penetrates through the thickness of the wall of the box body and extends into the accommodating piece; the containing piece is detachably mounted on the outer wall of the box body, and sealant is filled at the joint of the containing piece and the box body.

The conductor is two copper bars, and the end of the copper bar is led into the accommodating piece.

The accommodating piece is internally provided with an accommodating cavity, and the end part of the copper bar is led into the central part of the accommodating cavity.

The containing piece is provided with a plurality of connecting parts at the joint of the outer wall of the box body, wherein the connecting parts extend outwards and are attached to the wall of the box body, and the containing piece is detachably connected with the box body through the connecting parts.

The accommodating piece is arranged in a mode of coating the conductor.

The accommodating piece is arranged on one side of the bottom of the box body.

The accommodating part is provided with an opening and closing part, the opening and closing part is hinged to the accommodating part, and the accommodating part controls the communication between the accommodating cavity and the external space through the opening and closing of the opening and closing part.

According to the above technical scheme, the utility model discloses an install the holding piece in the outer wall department of box to the conductor of connecting switch spare has been optimized, make the tip of this conductor introduce to the holding in the piece, thereby reached can be at the outside direct wiring's of box operation requirement, great improvement use convenient degree, and simultaneously, still install electrified display on the holding, make operating personnel can be when operating for implementing whether electrified surveyability in the box, the security and the efficiency of operation have been improved.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a partial enlarged view of the present invention.

In the figure: the device comprises a box body 1, a switch piece 2, a conductor 3, a containing piece 4, an opening and closing piece 41, a charged display 42, a holding part 43, a connecting part 44, a locking part 441 and sealant 5.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-2, a dc combiner box includes a box body 1, a container 4 and a conductor 3, wherein a switch 2 is disposed in the box body 1, the switch 2 is a main switch for controlling all circuits in the box body 1, generally, the switch 2 employed in the traditional box body 1 is connected to an external cable through a short flat cable at a terminal, and in the specific implementation process, the door panel of the box body 1 needs to be opened first, and the terminal of the cable is connected to the inside of the box body 1, and the space area inside the box body 1 is limited, so that inconvenience is caused in the connection process. This embodiment has adopted and has independently been provided with a holding 4 in the outer wall department of box 1, makes it have the operating space of independent connection outside cable, simultaneously, holding 4's wall on still install electrified display 42, the inside circuit of box 1 is connected to this electrified display 42 for detect box 1 inside whether be in electrified state, in order to reach effectual suggestion effect. It should be noted here that, in general, the box 1 is vertically installed in the view of fig. 1, the terminal of the switch 2 is located below, and two vertically arranged conductors 3 are connected to the two terminals; in practice, the conductor 3 is used for conducting electricity, and is not limited to be replaced by a wire or a copper bar, and the end of the conductor 3 penetrates through the thickness of the wall of the box 1 and extends into the accommodating part 4, wherein the accommodating part 4 provides an operable space at the end of the conductor 3, and provides an operator to perform a wiring connection operation between the cable and the end of the conductor 3 in the operating space. Wherein, the installation in the outer wall department of box 1 of holding 4 dismantlement formula, and this holding 4 with the seam crossing of box 1 is filled with sealed glue 5, implements the packing to the seam crossing through adopting sealed glue 5, can effectually guarantee the leakproofness in the holding 4 to improve water-proof effects.

The conductor 3 adopts two copper bars, generally, in order to improve the use performance and consider the use cost, the conductor 3 can adopt a T2 copper bar, and the electric conductivity can reach more than 98%. The end of the copper bar is introduced into the accommodating piece 4. Furthermore, the accommodating part 4 is internally provided with an accommodating cavity, the end part of the copper bar is introduced into the central part of the accommodating cavity, and here, a person skilled in the art can understand that, in order to improve the efficient connection between the conductor 3 and an external cable, the end part of the conductor 3 is provided with a section of structure extending into the accommodating cavity, and at least one half of the remaining space is reserved for the connection of the cable of the wiring, and meanwhile, the size of the accommodating part 4 adopted in the scheme depends on the size of the box body 1 and the size of the occupied area of the conductor 3 and is adapted to the size, so that the effect of conveniently connecting the external cable can be effectively achieved.

In the present embodiment, the accommodating element 4 is formed with a connecting portion 44 extending outward and adhering to the wall of the box body 1 at the seam of the outer wall of the box body 1, that is, the connecting portion 44 is a bent L-shaped structure, and in the implementation, the connecting portion can be welded to one side of the accommodating element 4 first, and is detachably connected to the box body 1 through a locking member 441 in the assembling process, the locking member 441 is a bolt, but the present embodiment is not limited thereto; after the installation, in order to ensure that the accommodating part 4 and the box body 1 have good sealing performance and prevent the short circuit and other problems of the conductor 3 caused by the infiltration of outdoor rainwater and the like of the junction box, the sealant 5 is filled at the joint to implement water proofing, and here, the specific material adopted by the sealant 5 is not limited, and the waterproof sealant is generally adopted.

Referring back to fig. 1, in general, the adopted combiner box is in a vertical state as shown in fig. 1, in order not to interfere with the normal opening and closing of the door panel of the box 1, the accommodating part 4 needs to be disposed on a path that does not coincide with the opening and closing path of the door panel of the box 1, and meanwhile, in view of the erosion problem of rainwater after outdoor installation, in this embodiment, the accommodating part 4 is disposed on one side of the bottom of the box 1, so that the box 1 has a protection effect on the accommodating part 4, and meanwhile, the installed live display 42 can be conveniently read, i.e., can be installed at a front position as shown in fig. 1. The accommodating part 4 is also provided with an opening and closing part 41, the opening and closing part 41 is hinged on the accommodating part 4, and the accommodating part 4 controls the communication between the accommodating cavity and the external space by the opening and closing of the opening and closing part 41. Here, it should be noted that the opening and closing member 41 is a plate structure integrally installed with the accommodating member 4, and mainly functions to close the accommodating member 4, and for convenience of opening and closing, a holding portion is further provided on the opening and closing member 41 to facilitate the opening and closing actions performed by an operator. Because the end of the conductor 3 is connected with the external cable, in the closing process of the opening and closing member 41, in order to prevent the structural interference with the cable, a large through hole for the cable to pass through can be formed on the plate surface of the opening and closing member 41, namely, the cable passes through the through hole and then is connected with the conductor 3, so that the problem of structural interference can be effectively solved.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. A dc combiner box, comprising:

the switch device comprises a box body, a switch component and a control circuit, wherein the box body is internally provided with the switch component which is provided with a wiring end;

the accommodating piece is arranged on the outer wall of the box body, and a live display is installed on the wall of the accommodating piece;

one end of the conductor is connected to the wiring end of the switch piece, and the other end of the conductor penetrates through the thickness of the wall of the box body and extends into the accommodating piece;

the containing piece is detachably mounted on the outer wall of the box body, and sealant is filled at the joint of the containing piece and the box body.

2. A dc combiner box as defined in claim 1, wherein: the conductor is two copper bars, and the end of the copper bar is led into the accommodating piece.

3. A dc combiner box as defined in claim 2, wherein: the accommodating piece is internally provided with an accommodating cavity, and the end part of the copper bar is led into the central part of the accommodating cavity.

4. A dc combiner box as defined in claim 1, wherein: the containing piece is provided with a plurality of connecting parts at the joint of the outer wall of the box body, wherein the connecting parts extend outwards and are attached to the wall of the box body, and the containing piece is detachably connected with the box body through the connecting parts.

5. A dc combiner box as defined in claim 1, wherein: the accommodating piece is arranged in a mode of coating the conductor.

6. A dc combiner box as defined in claim 1, wherein: the accommodating piece is arranged on one side of the bottom of the box body.

7. A dc combiner box as claimed in claim 3, wherein: the accommodating part is provided with an opening and closing part, the opening and closing part is hinged to the accommodating part, and the accommodating part controls the communication between the accommodating cavity and the external space through the opening and closing of the opening and closing part.