CN204992268U - High voltage direct current converge box and equipment - Google Patents

Abstract

The utility model discloses a high voltage direct current converge box and equipment, the high voltage direct current box that converges, including at least one rectangular shape box body, be equipped with the metal strip that converges along length direction in rectangular shape box body, wherein one sides of box body both sides is equipped with along length direction and is used for the wire to be connected to opening required uncoveredly in vain, be equipped with the wiring end plate on the metal strip that converges and should work a telephone switchboard the end plate extends the box body to the non - one side at uncovered place on the horizontal direction outside. Because the utility model discloses a rectangular converges the metal strip as convincing the link that the line links to each other by patient analysis with the sky to having converted " connecting wire " to with " tie point ", having walked the line complicacy in having solved prior art, the in disorder problem of working a telephone switchboard can be guaranteed sky standard width of a room in an old -style house wire and connect in good orderly, can realize the stack in addition between box body and the box body, deals with the wiring of big quantity and walks the line.

Description

HVDC combiner box and equipment

technical field

The utility model relates to the technical field of high-voltage direct current power supply systems, in particular to a high-voltage direct current junction box and equipment.

Background technique

In the existing market, for high-voltage DC power supply systems, power-operated power systems, and communication power supply systems, the confluence between AC and DC distribution switches can be roughly divided into: 1. Copper bar confluence (positive and negative poles, or AC ABC three-phase each One pole is connected to the main road copper bar through a small bent copper bar or copper teeth), among which there are various types of non-standard copper bars, the processing technology of copper bars is complicated, and the processing cost is too high; 2. Bus bars (positive and negative poles, or AC ABC three-phase), the bus bar cannot meet the diverse needs of customers, and has limitations; 3. Cable jumper connection (positive and negative poles, or AC ABC three-phase each pole open circuit is shorted by cable jumper), However, the cable jumper connection has the problems of complicated wiring process, unsightly appearance and high labor cost.

Utility model content

The utility model provides a high-voltage DC junction box and equipment, which can be compatible with all the needs of current customers and can realize batch automatic production to solve the above problems.

A high-voltage DC junction box provided by an embodiment of the present invention includes at least one elongated box body, and a confluence metal strip is arranged along the length direction in the elongated box body, and one of the two sides of the box body is arranged along the length direction. There is an opening required for wires to be connected to the open space, and a terminal plate is provided on the bus bar, and the terminal plate extends out of the box body to the side where the opening is not located in the horizontal direction.

Preferably, the number of elongated boxes is more than two, and the openings of more than two elongated boxes are stacked and detachably installed together in the vertical direction in the same direction.

Preferably, at least a hook extends downwards at least on the front and rear sides of the elongated box body, and a card hole matching the hook is provided on the upper part of the front and rear sides of the elongated box body, and two adjacent boxes When the boxes are stacked and installed, the hooks on the box above hook the holes on the box below.

Preferably, the top of the elongated box body is provided with a chute/slider along the length direction, and the bottom of the box body is provided with a slider/slider matching the chute/slider, and two adjacent boxes When stacked, the slider/slider at the bottom of the upper box fits with the chute/slider of the lower box.

Preferably, the side of the elongated box body opposite to the opening is provided with a through hole matching the terminal plate, and the terminal plate extends to the outside of the box body through the through hole.

Preferably, a plurality of wires are distributed along the length direction of the bus metal strip, one end of the wire connected to the bus metal bar is used as a fixed connection end, and the other end of the wire is used as a free connection end protruding from the opening.

The embodiment of the utility model also provides a high-voltage DC confluence device, including: a mounting base and the high-voltage DC confluence box described in the above-mentioned embodiments, and a plurality of air switches are fixedly installed on the front end of the mounting base along the length direction of the confluence metal strip , the high-voltage DC junction box is installed on the top surface of the installation base, and each air switch is connected to the corresponding position of the junction metal strip through wires.

Preferably, a mounting rail is provided on the front end of the mounting seat, and a slide groove matching the mounting rail is provided on the back of the vacant opening, and the vacant opening is installed on the mounting rail on the front face of the mounting seat through the chute on the back.

Preferably, it also includes a plurality of DC transformers that are consistent with the number of space switches, and a plurality of DC transformers are fixedly installed on the bottom surface of the mounting base along the length direction of the bus bar, and each DC transformer is used to sense the flow of the space switch at the corresponding position. current size.

Preferably, a wire management box is installed on the rear end surface of the mounting seat along the length direction of the bus bar, the wire management box has a cavity in the length direction, and wire inlet and outlet holes arranged along the length direction are arranged on the upper and lower end surfaces of the wire management box.

It can be seen from the above technical solution that since the utility model adopts a long converging metal strip as the connection end connected with the open wire, the "connection point" is converted into a "connection line", which solves the problems in the prior art. The problem of complex wires and messy wiring can ensure that the wires in the empty bays are connected neatly and orderly, and the box body can be superimposed to cope with a large number of wiring lines.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is a schematic structural diagram of the stacking of high-voltage DC combiner boxes in Embodiment 1 of the present utility model;

Fig. 2 is a schematic diagram of the explosion structure of the high-voltage DC combiner box in Embodiment 1 of the present utility model;

Fig. 3 is a structural schematic diagram of the rear view angle of the high-voltage DC combiner box in Embodiment 1 of the present utility model;

Fig. 4 is a schematic diagram of the stacked structure of the elongated box body of the high-voltage DC combiner box in Example 2 of the utility model;

Fig. 5 is a schematic structural diagram of the high-voltage direct current confluence device in Embodiment 3 of the present utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

Example 1:

The embodiment of the utility model provides a high-voltage DC combiner box. As shown in Figure 1, a schematic structural diagram of three high-voltage DC combiner boxes stacked together is provided, and Figure 2 shows the explosion of one of the high-voltage DC combiner boxes. Schematic diagram of the structure, referring to Fig. 3, the high-voltage DC junction box includes a strip-shaped box body 11, and a bus metal strip 12 is arranged in the strip-shaped box body 11 along the length direction, and one side of the box body 11 is along the length direction There is an opening 14 for the wire 13 to be connected to the open space. The bus bar 12 is provided with a terminal plate 121 and the terminal plate 121 extends out of the box body 11 in the horizontal direction to the side where the opening is not located. On the outside, in this embodiment, the elongated box body 11 is located on the opposite side (back side) of the opening 14, and is provided with a through hole 122 matching the terminal plate 121, and the terminal plate 121 extends to the box through the through hole 122. Body 11 outside. Certainly, in other embodiments, the terminal board may extend from the front side or the rear side of the box body. In this embodiment, there are multiple through holes 122, and the through holes 122 are arranged in a horizontal and vertical array. On the one hand, it is convenient for the position selection when the terminal board extends out of the box body, so as to facilitate adjustment. The installation position of the entire high-voltage DC combiner box, on the other hand, the unoccupied through holes of the terminal board can also play a certain heat dissipation effect. The bus metal strip 12 is made of copper strip, which has good electrical conductivity and anti-corrosion performance. The two sides of the box body 11 here refer to the left and right sides according to the viewing angle in the figure. The first box body 11 is to separate the busbar metal strip from the outside and play an insulating role, and the other is to accommodate and fix the busbar metal strip. The bottom surface of the box body 11 is provided with a protruding snap-in piece 15. On the one hand, it can support the confluence metal strip, so that the bottom surface of the confluence metal strip can be suspended in the air to accelerate heat dissipation;

In order to adapt to the use occasions when most of the openings are lined up, an opening 14 is provided on one side of the box body 11, so that all wires can pass through the opening 14 to connect the openings to the corresponding busbars.

In the embodiment of the utility model, the number of elongated boxes is three, and the three elongated boxes 11 are stacked and detachably installed together in the vertical direction with the openings 14 aligned. This stacked design of multiple strip-shaped boxes can infinitely expand the number of busbars, thus providing sufficient conditions for coping with a large number of open spaces.

In the embodiment of the utility model, a hook 111 is extended downwards on the front and rear sides of the elongated box body 11, and the upper part of the front and rear sides of the elongated box body 11 is provided with a card hole 112 matched with the hook. When two adjacent boxes are stacked and installed, the hook 111 of the upper box hooks the hook 112 of the lower box. An inclined surface is provided on the inner surface of the buckle, which can facilitate the buckle to be smoothly inserted into the locking hole during installation. In order to make the adjacent upper and lower box bodies laminated more stably, the same hook and hole structure can also be provided on the back side of the box body (the side opposite to the opening).

In this embodiment, a plurality of wires 13 are distributed along the length direction of the busbar 12, one end of the wire 13 connected to the busbar 12 is used as a fixed connection end, and the other end of the wire 13 is extended from the opening 14 as a free connection end. It can be seen that the fixed connection ends of multiple wires are arranged equidistantly along the length direction on the bus bar, which is more conducive to neat wiring. In this way, the user can directly connect the high-voltage DC combiner box to the air switch after purchasing the high-voltage DC combiner box, without having to deal with the problem of wires. In this embodiment, the wire and the bus metal strip 12 are fixed and electrically connected by welding. Of course, for flexible wiring, a metal ring for fixing the fixed connection end of the wire can be welded on the bus bar, and the fixed connection end of the wire is inserted into the metal ring to be fixed and electrically connected, so that the wire can be replaced at any time.

Example 2:

This embodiment is improved on the basis of the above-mentioned embodiment 1. The only difference from the above-mentioned embodiment 1 is the stacking method of the boxes. As shown in Figure 4, it is only a schematic diagram of the assembly structure of the elongated box, and the Wires, confluence metal strips and other components, the top of the elongated box body 11 is provided with a slider 113 along the length direction, and the bottom of the box body is provided with a chute 114 matching the slider. Two adjacent boxes 11 During stacking installation, the 114 chute at the bottom of the box body above fits and matches with the slide block 113 at the box body below. In order to ensure a stable installation between the upper and lower boxes, the longitudinal section of the slider is T-shaped, and the longitudinal section of the chute is a matching T-shaped slot with the slider. When installing, the upper and lower boxes slide upwards in the front and rear Easy to install and disassemble.

Example 3:

The embodiment of the utility model provides a high-voltage DC confluence device, as shown in Figure 5, comprising: a mounting base 51 and the high-voltage DC converging box 52 described in Embodiment 1 above, the front end of the mounting base 51 is along the confluence metal bar A plurality of air switches 53 (abbreviation for air switch) are fixedly installed in the length direction, and the high-voltage DC junction box 52 is installed on the top surface of the mounting base 51. The plane where the wires are located is perpendicular to the bus metal strip, which ensures that the shortest wire is used to connect the air switch and the bus metal bar, thereby saving wires and ensuring that the wires are neatly connected between the air switch and the bus metal bar. The front end face of the mounting seat referred to in this embodiment is the end face facing the same opening direction of the junction box 52. Here, in order to facilitate the understanding of the technical solution, this direction is defined. In practical applications, the principle is the same and still belongs to the scope of protection of the present invention. . Mounting seat 51 front end face is provided with mounting rail 511, and the back side of empty opening 53 is provided with the chute that matches with this mounting rail 511, and empty opening 53 is installed on the mounting rail 511 of this mounting seat 51 front end face by the chute of back. This makes it easier for the air switch to be installed on the mounting base.

The embodiment of the utility model also includes a plurality of DC transformers 54 that are consistent with the number of air switches 53, and the plurality of DC transformers 54 are fixedly installed on the bottom surface of the mounting base 51 along the length direction of the confluence metal strip. Each DC transformer 54 It is used to sense the magnitude of the current flowing through the air switch 53 above the corresponding position. The DC transformer is provided with holes for wires to pass through. According to the eddy current principle, the current on the wires passing through it is sensed. An output port 541 is provided on the DC transformer. The DC transformer generates a corresponding The electrical signal, and then output the electrical signal to the controller through the output port 541 (the controller is not shown in the figure). Since the output port is integrated on the DC transformer, the user can directly connect with the controller after purchase and install it. Easy to use.

A wire management box 55 is installed on the rear end surface of the mounting base 51 along the length direction of the confluence metal strip. The cable management box can further ensure the tidy wiring of the DC input cables. Of course, the high-voltage DC junction box in Embodiment 2 is still suitable for the device in this embodiment.

When working, the DC input line is connected to the terminal board of the high-voltage DC combiner box, and the circuit breaker obtains the current on the metal bus bar in the high-voltage DC combiner box through the wire, and provides DC to the corresponding equipment. The DC transformer corresponding to each circuit breaker is used It is used to detect whether the current exceeds the limit value, and feedback to the controller in real time.

The high-voltage DC confluence device in the embodiment of the utility model mainly solves the problem of messy wiring in the existing equipment. The combination of the high-voltage DC confluence box and the mounting seat makes the wiring of the air breaker neat and can greatly expand the number of air breakers. , only need to increase the number of stacked combiner boxes, the operation is simple and the assembly is easy.

The utility model also solves the problem of the current high-voltage direct current system, electric power operation power supply system, communication power supply system, and AC/DC power distribution cabinet due to the diverse needs of customers for the number of feed-out channels, resulting in various types of non-standard copper bars, complex wiring processes, and labor costs. The problem of being too high can be compatible with all the needs of current customers and can realize batch automation production.

A high-voltage DC junction box and equipment provided by the embodiment of the utility model have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the utility model. The description of the above embodiment is only for help Understand the core idea of the present utility model; Simultaneously, for those of ordinary skill in the art, according to the idea and method of the present utility model, there will be changes in the specific implementation and scope of application. In summary, the content of this specification It should not be understood as a limitation of the present utility model.

Claims (10)

1. The high-voltage DC junction box is characterized in that it includes at least one elongated box body, and a confluence metal strip is arranged along the length direction in the elongated box body, and one of the two sides of the box body is provided along the length direction for wires. To connect to the required opening of the opening, the bus bar is provided with a terminal plate and the terminal plate extends out of the box body in the horizontal direction to the side where the opening is not located. 2. The high-voltage DC junction box according to claim 1, characterized in that the number of elongated boxes is more than two, and more than two elongated boxes are stacked in the vertical direction in the same opening direction Removable fit together. 3. The high-voltage DC junction box according to claim 2, characterized in that at least a hook extends downwards from the front and rear sides of the elongated box body, and a hook is provided on the upper part of the front and rear sides of the elongated box body. There are card holes matching the hooks. When two adjacent boxes are stacked and installed, the hooks of the upper box hook the card holes of the lower box. 4. The high voltage DC junction box as claimed in claim 2, characterized in that, the top of the elongated box body is provided with a chute/slider along the length direction, and the bottom of the box body is provided with a chute/slider Matching slider/slider, when two adjacent boxes are stacked and installed, the slider/slider at the bottom of the upper box fits and matches with the chute/slider at the bottom of the box. 5. The high voltage DC junction box according to claim 1, characterized in that, the side of the elongated box body opposite to the opening is provided with a through hole matching the terminal plate, and the terminal plate extends through the through hole to outside of the box. 6. The high-voltage DC junction box as claimed in claim 1, characterized in that, a plurality of wires are distributed along the length direction of the bus metal strip, one end of the wire connected to the bus metal strip is used as a fixed connection end, and the other end of the wire is used as a free terminal. A connection end protrudes from the opening. 7. High-voltage DC confluence equipment, characterized in that it comprises: a mounting base and the high-voltage DC converging box according to any one of claims 1 to 6 above, and the front end of the mounting base is fixedly installed with a plurality of empty spaces along the length direction of the confluence metal strip. Open, the high-voltage DC junction box is installed on the top surface of the mounting base, and each air switch is connected to the corresponding position of the busbar through wires. 8. The high-voltage direct current confluence device according to claim 7, wherein the front end of the mounting seat is provided with a mounting rail, the back of the space is provided with a chute matching the mounting rail, and the space is installed through the chute on the back on the mounting rail on the front face of the mount. 9. The high-voltage DC confluence device according to claim 7, characterized in that it further comprises a plurality of DC transformers corresponding to the number of air switches, and the plurality of DC transformers are fixedly installed on the mounting base along the length direction of the confluence metal strip. On the bottom surface, each DC transformer is used to sense the magnitude of the current flowing through the open space above the corresponding position. 10. The high-voltage direct current confluence device as claimed in claim 7, wherein a line management box is installed on the rear end surface of the mounting base along the length direction of the confluence metal bar, and the line management box has a cavity in the length direction, and the upper and lower sides of the line management box The end face is provided with inlet and outlet holes arranged along the length direction.