CN219268709U - AC input type high-voltage DC remote supply local side device - Google Patents

Abstract

The utility model provides an alternating current input type high-voltage direct current remote power supply local side device which comprises a shell, a power distribution unit, a monitoring unit and a power unit, wherein electric interfaces of the power distribution unit, the monitoring unit and the power unit are all positioned on the front surface of the shell, and a backboard on the back surface of the shell is not provided with any electric interface. According to the direct-current remote power supply local side, the power distribution unit, the lightning protection unit, the monitoring unit and the power unit are arranged at the front end of the shell, the back surface has no maintenance workload, and the problem of difficult installation and maintenance caused by space constraint at the back of the cabinet can be realized.

Description

AC input type high-voltage DC remote supply local side device

Technical Field

The utility model relates to the technical field of direct-current remote supply equipment, in particular to an alternating-current input type high-voltage direct-current remote supply local side device.

Background

At present, networking construction comprehensively develops, and aims to realize network full coverage, so that the technical requirement on a communication base station is higher and higher, and in some remote mountain areas, or in areas without power or with less power, the high-voltage direct current remote supply technology is applied to the communication base station, so that the problems of difficult power supply, high cost, high loss and the like of the remote station are solved.

The high-voltage direct-current remote supply system comprises local side equipment, a transmission cable and remote side equipment. At present, office equipment is in a modularized design and comprises a monitoring module, a power supply, a communication module and a power unit, the power distribution unit converts a 48V power supply into 380V transmission, the front end of the power distribution unit is structurally arranged to be a module, the back of the power distribution unit is a power distribution air switch, and an embedded type mode is adopted in a fixing mode.

However, the above prior art has the following drawbacks in practical use:

1. the power distribution air switch is positioned at the rear of the cabinet, and when the rear of the cabinet in the base station is blocked, the wiring is difficult and the operation is difficult;

2. the cabinet wiring is arranged horizontally in an empty mode, a screwdriver needs to extend into the cabinet during wiring, other equipment is usually arranged in the cabinet, the space is insufficient, the screw is limited during screw fixing, the screw is not tightly fixed, and potential safety hazards exist;

3. the upper shell of the pluggable AC-DC module is of a planar design, occupies a large space in the horizontal direction, and is not beneficial to the installation and fixation of the module.

Disclosure of Invention

Therefore, the utility model aims to overcome the defects that in the prior art, when the power distribution of the direct current remote-supply local side is located behind the cabinet, wiring is difficult and operation is difficult when the rear of the cabinet in the base station is blocked, so that the alternating current input type high-voltage direct current remote-supply local side device convenient for wiring is provided.

The utility model solves the other technical problem that the AC input type high-voltage DC remote local side device with the inclined plane fixed open guide rail overcomes the defects that in the prior art, a plurality of cabinet devices are arranged, wiring space is insufficient due to flat arrangement of wiring water, bolt fixation is limited easily, and potential safety hazards are caused difficultly due to tightening.

The utility model solves the other technical problems that the planar design of the upper shell of the AC-DC module in the prior art causes larger occupied horizontal space, the upper shell of the AC-DC module interferes with the fixed part of the shell during the installation of the module and is inconvenient to fix, thereby providing an AC input type high-voltage direct current remote local side device with Z-shaped design of the upper shell of the AC-DC module.

Therefore, the first aspect of the present utility model provides an ac input type high-voltage dc remote office device, which includes a casing, a power distribution unit, a monitoring unit and a power unit, wherein all the electrical interfaces of the power distribution unit, the monitoring unit and the power unit are located on the front surface of the casing, and no electrical interface is provided on a back plate on the back surface of the casing.

Optionally, the power distribution unit comprises an ac input air switch and a dc output air switch, the ac input air switch and the dc output air switch are fixed on the front top layer of the casing in a straight shape through a guide rail, the guide rail is in an inclined plane design, and the ac input air switch and the dc output air switch are obliquely installed on the guide rail.

Optionally, the guide rail forms an included angle of 30 ° -60 ° with the top plate horizontal plane of the housing.

Optionally, the guide rail forms an angle of 45 ° with the horizontal plane of the top plate of the housing.

Optionally, the shell is in a layered design, and the top layer comprises the power distribution unit, a lightning protection unit and the monitoring unit, wherein the lightning protection unit is arranged between the alternating current input air switch and the direct current output air switch; the power unit comprises a plurality of AC-DC modules, and the AC-DC modules are positioned below the power distribution unit, the lightning protection unit and the monitoring unit and are fixed on the front surface of the shell in a layered and parallel manner; the layers of the shell are connected through a detachable fixing bracket.

Optionally, a plurality of partition boards are arranged in the shell, and the space in the shell is layered through the plurality of partition boards.

Optionally, at least one corner of the AC-DC module housing is a "Z" corner, a fixing piece with a size slightly smaller than that of the "Z" corner is fixed on the chassis or the partition corresponding to the "Z" corner, and the "Z" corner can avoid the fixing piece when the AC-DC module is inserted into or extracted from the chassis, and after the AC-DC module is completely inserted into the chassis, the front panel of the AC-DC module and the fixing piece are fixed by screws.

Optionally, the casing includes roof, curb plate, baffle, bottom plate and backplate, and each adjacent structure adopts insulation board material compression moulding and passes through screwed connection after the overlap joint is accomplished, the curb plate is passed through by the overlap joint by the three-layer insulation board after by screwed connection, and the curb plate part is opened the ventilation hole, the curb plate openly consolidates by angle steel structure fixed bolster, and the side carries out vertical reinforcement by 2 sets of slice fixed bolsters to the seam crossing, demolishs angle steel structure fixed bolster, a set of slice fixed bolster, a set of curb plate and baffle after, the bottom plate can be fixed in on the second floor curb plate.

Optionally, the monitoring unit includes a monitoring module, and monitoring module is fixed in by the screw side by side the direct current output sky opens the right side, monitoring module openly is equipped with the display screen, a plurality of operating button have been arranged in the display screen left side, and a plurality of pilot lamps have been arranged on the right side.

The second aspect of the present utility model provides a dc remote power supply system, including any one of the ac input type high voltage dc remote power supply local side devices described above.

The technical scheme of the utility model has the following advantages:

1. according to the direct-current remote power supply local side, the power distribution unit, the lightning protection unit, the monitoring unit and the power unit are arranged at the front end of the shell, the back surface has no maintenance workload, and the problem of difficult installation and maintenance caused by space constraint at the back of the cabinet can be realized.

2. The direct current remote supply local side provided by the utility model has the advantages that the guide rail is of an inclined plane design, a certain range of included angles are formed between the guide rail and the horizontal plane of the top plate of the shell, and the alternating current input air switch and the direct current output air switch are obliquely arranged on the guide rail, so that the follow-up wiring construction is convenient.

3. According to the direct-current remote supply local side provided by the utility model, the upper right corner of the AC-DC module shell adopts the Z-shaped design, and the structural design ensures that the module cannot be blocked from being inserted and pulled out in the shell when being firmly fixed with the shell fixing part, so that the horizontal space in the cabinet is saved.

4. According to the direct-current remote-supply local side, after the angle steel fixing support, the 1 group of sheet-shaped supports and the lower partition plate are removed, the shell is converted from a 3-layer structure into a 2-layer structure, so that the configuration requirements of various direct-current remote-supply local sides can be met.

The direct-current remote-supply local side provided by the utility model mainly solves the defect that the local side equipment is inconvenient to install and overhaul in the actual use process in the prior art, and meanwhile, the direct-current remote-supply local side provided by the utility model adopts 750V high-voltage direct current for transmission, so that the transmission distance can be greatly increased.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an ac input type high-voltage dc remote-supply local side device according to an embodiment of the present utility model;

FIG. 2 is a back view of FIG. 1;

fig. 3 is a schematic structural diagram of an ac input type high-voltage dc remote-supply local side device according to an embodiment of the present utility model, in which a power distribution unit and a lightning protection unit are omitted;

fig. 4 is a schematic structural diagram of a second layer of an ac input type high-voltage dc remote-supply local side device according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of an AC-DC module in an AC input type high-voltage DC remote-supply local side device according to an embodiment of the present utility model.

Reference numerals illustrate:

1-a shell, 11-a side plate, 111-a first fixing bracket, 112-a second fixing bracket, 12-a top plate, 121-a guide rail, 13-a partition plate, 131-a fixing piece, 14-a bottom plate, 15-a back plate, 16-a front panel and 17-a screw;

2-power distribution unit, 21-AC input is empty, 22-DC output is empty;

3-a lightning protection unit;

4-a monitoring unit;

5-power unit, 51-AC-DC module, 511-upper shell, 512- "Z" corner;

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

One embodiment of the ac input type high-voltage dc remote-supply local side device shown in fig. 1 and 2 includes the enclosure 1, the power distribution unit 2, the lightning protection unit 3, the monitoring unit 4 and the power unit 5 are disposed at the front position of the enclosure, and the back plate 15 has no electrical interface.

As shown in fig. 1 and 2, the electrical interfaces of the power distribution unit 2, the lightning protection unit 3, the monitoring unit 4 and the power unit 5 are all located on the front surface of the casing, and no electrical interface is arranged on the back plate 15; compared with the local side equipment with electric interfaces arranged at the front and back in the prior art, the direct remote supply local side equipment can realize signal conversion, transmission and protection only after the front side is connected with a transmission wire if the space behind the equipment is insufficient and wiring is difficult. Especially in the macro base station of some communication, have the rack that leans on the wall fixed because of space constraint, the rack back wiring is difficult, through this embodiment with all interfaces setting up in the front (front end) of casing, has reduced the wiring degree of difficulty, has significantly reduced installation work load.

As shown in fig. 1 and 2, the casing 1 includes a top plate 12, a side plate, a back plate, a bottom plate, and a plurality of partitions disposed inside the casing 1 to divide the internal space of the casing, where each adjacent structure in the casing 1 is formed by pressing insulating plate materials and connected by screws after the overlapping is completed.

The power distribution unit 2 comprises an alternating current input air switch 21 and a direct current output air switch 22 which are in a straight shape and are fixed on the front top layer of the machine shell 1 through guide rails, the guide rails are of an inclined plane design, and the alternating current input air switch 21 and the direct current output air switch 22 are obliquely arranged on the guide rails. Specifically, in this embodiment, as shown in fig. 3, the guide rail 121 forms an angle of 45 ° with the top plate 12, and the ac input air gap 21 and the dc output air gap 22 are obliquely fixed on the guide rail 121. Compared with the situation that the wiring empty-open level of the power distribution unit is fixed in the prior art, the arrangement is more beneficial to ensuring the wiring quality while wiring construction.

It should be noted that, the angle between the guide rail 121 and the top plate 12 may be adjusted within 30-60 °, so long as the principle of convenient connection is satisfied, the angle between the guide rail 121 and the top plate 12 may be properly adjusted.

In this embodiment, the casing 1 is a layered design, specifically, divide the casing interior into three layers through two-layer baffle, the top layer (first layer) of casing is used for installing distribution unit 2, lightning protection unit 3 and monitor unit 4, and the lightning protection unit 3 is located between the empty 21 of alternating current input of distribution unit 2 and the empty 22 of direct current output, and monitor unit 4 is located the right side of the empty 22 of direct current output, monitor unit 4 includes a monitor module, and monitor module is fixed in side by the screw the empty right side of direct current output, monitor module openly is equipped with the display screen, a plurality of operating button have been arranged in the display screen left side, and a plurality of pilot lamps have been arranged on the right side. The power module 5 includes a plurality of AC-DC modules distributed at the second and third layers of the cabinet 1. The layers of the local side device of this embodiment are connected together by 2 first fixing brackets 111 and 2 second fixing brackets 112. The first fixed bolster 111 is angle steel structure fixed bolster, and the second fixed bolster 112 is slice fixed bolster, the curb plate 11 is by the three-layer insulation board through overlap joint after by screwed connection, and the curb plate 11 part is opened there is the ventilation hole, the curb plate 11 openly consolidates by angle steel structure fixed bolster, and the side carries out vertical reinforcement by 2 slice fixed bolsters to seam crossing, demolishs angle steel structure fixed bolster, a set of slice fixed bolster, a set of curb plate and baffle after, and the bottom plate can be fixed in on the second floor curb plate.

In the present embodiment, the power distribution unit 2, the lightning protection unit 3, and the monitoring unit 4 are arranged above the power unit 5. However, the present utility model is not limited thereto, and in other embodiments, the power distribution unit 2, the lightning protection unit 3, and the monitoring unit 4 may be disposed below the power unit 5, so long as it is possible to satisfy that all the electrical interfaces are located on the front surface of the casing 1, and the back plate 15 has no function of providing any electrical interface, and the positions of the constituent parts thereof may be flexibly disposed.

The AC-DC module is an pluggable embedded module, at least one corner of the housing of the AC-DC module 51 is a "Z" corner 512, the casing 1 or the partition 13 corresponding to the "Z" corner 512 is fixed with a fixing piece 131 with a size slightly smaller than that of the "Z" corner 512, and the "Z" corner 512 can avoid the fixing piece 131 when the AC-DC module 51 is inserted into or extracted from the casing 1, and the front panel 16 of the AC-DC module 51 and the fixing piece 131 are fixed by screws 17 after the AC-DC module 51 is completely inserted into the casing 1. In this embodiment, as shown in fig. 4 and 5, the corner of the upper right corner of the housing of the AC-DC module 51 is a "Z" corner 512, a fixing plate 131 is fixed on the corresponding partition 13 above the corner, a screw hole is formed on the fixing plate 131, when the AC-DC module 51 is inserted into a set position in the casing 1 (the AC-DC module is completely inserted), the screw hole in the upper right corner of the front panel 16 of the front end of the AC-DC module is substantially attached to the screw hole of the fixing plate 131, and then the front panel is fixed with the fixing plate 131 by a screw, thereby realizing the fixation of the AC-DC module in the casing. For convenient drawing, a handle is also arranged on the front panel.

The upper right part of the upper shell 511 of the AC-DC51 module adopts a Z-type design, which can avoid the fixing piece on the frame during pushing and pulling, thereby ensuring the fixation of the module and saving space.

It should be noted that, the upper shell 511 may be designed in a "Z" shape, or may be in any triangle shape or any other structure that satisfies the requirement that the module is inserted and pulled out without interfering with the module fixing portion, and similarly, the partition fixing plate may easily be in a structure of different forms that can firmly fix the module.

The embodiment of the utility model also provides a direct-current remote power supply system which comprises remote equipment and the alternating-current input type high-voltage direct-current remote power supply local side device.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (9)

1. The utility model provides an exchange input type high voltage direct current far-end office end device, its characterized in that includes casing (1), distribution unit (2), monitoring unit (4) and power unit (5), the electric interface of distribution unit (2), monitoring unit (4) and power unit (5) all is located the front of casing (1), there is not any electric interface setting on backplate (15) at casing (1) back.

2. The ac input type high-voltage dc remote office device according to claim 1, wherein the power distribution unit (2) comprises an ac input air gap (21) and a dc output air gap (22), the ac input air gap (21) and the dc output air gap (22) are fixed on a front top layer of the casing (1) in a straight shape through guide rails, the guide rails are of an inclined plane design, and the ac input air gap (21) and the dc output air gap (22) are obliquely mounted on the guide rails.

3. The ac input type high voltage dc remote office device according to claim 2, wherein the guide rail forms an angle of 30 ° -60 ° with the horizontal plane of the top plate (12) of the casing (1).

4. An ac input type high voltage dc remote office device according to claim 3, wherein the guide rail forms an angle of 45 ° with the horizontal plane of the top plate (12) of the casing (1).

5. The ac input type high-voltage dc remote office device according to any one of claims 2 to 4, wherein the enclosure (1) is of a layered design, and a top layer includes the power distribution unit (2), a lightning protection unit (3) and the monitoring unit (4), and the lightning protection unit (3) is disposed between the ac input air gap (21) and the dc output air gap (22); the power unit (5) comprises a plurality of AC-DC modules (51), the AC-DC modules (51) are positioned below the power distribution unit (2), the lightning protection unit (3) and the monitoring unit (4), and are fixed on the front surface of the shell (1) in a layered and parallel manner; the layers of the shell (1) are connected through a detachable fixing bracket.

6. The ac input type high-voltage dc remote office device according to claim 5, wherein a plurality of partitions (13) are provided in the casing (1), and the space in the casing (1) is layered by the plurality of partitions (13).

7. The AC input type high-voltage direct current remote office device according to claim 6, wherein at least one corner of the AC-DC module (51) housing is a "Z" corner (512), a fixing piece (131) having a size slightly smaller than the "Z" corner (512) is fixed to the chassis (1) or the partition (13) corresponding to the "Z" corner (512), and the "Z" corner (512) can avoid the fixing piece (131) when the AC-DC module (51) is inserted into or extracted from the chassis (1) and the front panel (16) of the AC-DC module (51) and the fixing piece (131) are fixed by screws (17) after the AC-DC module (51) is completely inserted into the chassis (1).

8. The ac input type high-voltage dc remote local side device according to claim 5, wherein the casing (1) comprises a top plate (12), a side plate (11), a partition plate (13), a bottom plate (14) and a back plate (15), each adjacent structure is formed by pressing insulating plate materials and connected by screws after lap joint, the side plate (11) is connected by screws after lap joint by three layers of insulating plates, the side plate (11) is partially provided with ventilation holes, the front surface of the side plate (11) is reinforced by an angle steel structure fixing bracket, the side surface is vertically reinforced at a joint by 2 groups of sheet fixing brackets (6), and the bottom plate (14) can be fixed on the second layer of side plate (11) after the angle steel structure fixing bracket, the group of sheet fixing brackets (6), the group of side plate (11) and the partition plate (13) are removed.

9. The ac input type high-voltage dc remote office device according to any one of claims 2 to 4, wherein the monitoring unit (4) comprises a monitoring module, the monitoring module is fixed on the right side of the dc output air switch side by screws, a display screen is arranged on the front surface of the monitoring module, a plurality of operation buttons are arranged on the left side of the display screen, and a plurality of indicator lamps are arranged on the right side of the display screen.

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