CN111697795A - DC conversion cabinet - Google Patents

Abstract

The present application discloses a DC conversion cabinet, which includes a cabinet body and a plurality of first partitions, the cabinet body includes two oppositely arranged side panels and two oppositely arranged cabinet doors, and the first partitions along the direction perpendicular to the ground are arranged in the cabinet in sequence; it also includes a plurality of power conversion devices, the power conversion devices are located on the side of the first partition plate away from the ground, and at least two power conversion devices provide the second signal for the same DC communication device; the power conversion devices include The DC power device is located on the side of the first partition plate away from the ground, and is electrically connected to the DC power supply device and the DC communication device respectively, and is used to step down the first signal provided by the DC power supply device to provide a second signal. for DC communication equipment. In the DC conversion cabinet provided by the present application, at least two power conversion devices simultaneously provide power for the same DC communication device. If any power conversion device has a power supply failure, it will not affect the power supply of the DC communication device, thereby improving its fault protection capability.

Description

DC Converter Cabinet

technical field

The invention relates to the field of electric direct current equipment, in particular to a direct current conversion cabinet.

Background technique

At present, the optical fiber transmission network equipment in the communication core network room of the operator or the data center is set on the 2nd floor or above, using 48V power supply, and the power supply equipment is a high-frequency switching power supply system. Due to its heavy weight, it can only be installed on the first floor of the communication building due to its load bearing problem. At the same time, since many 48V communication equipment in the communication core room are powered by switching power supplies, with the advent of 5G, the number of high-power core network equipment will increase, and the power will also increase. Traditional switching power supplies have little room for capacity expansion. In addition, the equipment is gradually aging and the line loss is large, and the installation of a new switching power supply will increase the economic cost.

SUMMARY OF THE INVENTION

The invention discloses a DC conversion cabinet, comprising a cabinet body and a plurality of first partitions,

The cabinet body includes two oppositely arranged side panels and two oppositely arranged cabinet doors, the side panels and the cabinet doors are rotatably connected, and the side panels and the cabinet doors extend in a direction perpendicular to the ground;

In the direction perpendicular to the ground, the first partitions are sequentially arranged in the cabinet, and there is a first spacing between adjacent first partitions, and two ends of the first partitions are respectively connected with the first partition. the side plate is fixedly connected;

It also includes a plurality of power conversion devices, the power conversion devices are located on the side of the first partition plate away from the ground, and are respectively electrically connected with the DC power supply device and the DC communication device, and are used to convert the first power supply provided by the DC power supply device. The signal is stepped down into a second signal, and the second signal is provided for the DC communication device, and at least two of the power conversion devices provide the second signal for the same DC communication device;

The power conversion device includes a DC power device, and the DC power device is located on the side of the first partition plate away from the ground, and is located on the side of the first partition plate close to the cabinet door, and is respectively connected to the DC power device. The power supply device is electrically connected to the DC communication device, and is used to step down the first signal provided by the DC power supply device to a second signal, and provide the second signal to the DC communication device.

Preferably, the power conversion device further includes a plurality of input circuit breakers;

The input circuit breaker is located on the side of the DC power device away from the ground, and is electrically connected to the DC power device and the DC power supply device respectively, and is used to control whether the DC power device receives the DC power supply line device the first signal sent.

Preferably, the power conversion device further includes a monitoring device,

The monitoring device is located on the first partition board, and is located on the side of the input circuit breaker close to the ground, and is electrically connected to the DC power device and the input circuit breaker respectively, and is used for real-time monitoring of the DC Whether the power unit is working properly.

Preferably, the power conversion device further includes an output fuse;

The output fuse is located on the side of the first partition plate away from the ground, and is located on the side of the first partition plate away from the DC power device, and is electrically connected to the DC power device and the DC communication device respectively. is connected to control whether the second signal provided by the DC power unit is sent to the DC communication device.

Preferably, it also includes a second baffle, the second baffle is located on the side of the first baffle away from the ground, and along the direction perpendicular to the ground, the first baffle and the second baffle There is a second distance between;

It also includes an input fuse, the input fuse is located on the side of the second partition plate away from the ground, and the orthographic projection of the input fuse on the ground and the orthographic projection of the DC power device on the ground at least partially overlap, It is electrically connected to a plurality of the power conversion devices and the DC power supply line devices respectively, and is used to control whether the plurality of the power conversion devices receive the first signal sent by the DC power supply line devices.

Preferably, the first distance is equal to the second distance, or the first distance is not equal to the second distance.

Preferably, the DC conversion cabinet includes four power conversion devices.

Preferably, the total capacity of the power changing device is 48V and 1200A.

Preferably, the power conversion device includes 6 DC power devices, and the total capacity of the DC power devices is 48V and 50A.

Preferably, the power conversion device further includes 6 input circuit breakers, and the total capacity of the input circuit breakers is 20A, 2p.

Compared with the prior art, the DC conversion cabinet provided by the present invention achieves the following beneficial effects:

First, the DC conversion cabinet provided by the present invention can be used to receive 240V DC power supply equipment. Under the condition of transmitting the same power, the current of the 48V voltage system is much larger than that of the 240V DC power supply equipment, and then the 48V voltage system connected in the prior art. The required size of fuse/circuit breaker is larger; and because the line loss is proportional to the square of the current, the transmission line path is quite different from the 240V DC power supply equipment, which is conducive to reducing line investment.

Second, the DC conversion cabinet provided by the present invention can be used to receive 240V DC power supply equipment. Since the power density of the 48V voltage system in the prior art is lower than that of the 240V DC power supply equipment, it can be used for docking the DC power supply equipment. It is beneficial to reduce the problem that the power supply occupies a large space.

Third, the DC conversion cabinet provided by the present invention may include a plurality of power conversion devices, all of which work independently, and at least two power conversion devices simultaneously provide power for the same DC communication device, if any power conversion device has a power supply failure, It will not affect the power supply of the DC communication equipment, which can help to improve the fault protection capability of the DC conversion cabinet.

The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

Fig. 1 is the front view of a kind of direct current conversion cabinet of the present invention;

Fig. 2 is the rear view of a kind of direct current conversion cabinet of the present invention;

Fig. 3 is the front view of another kind of direct current conversion cabinet of the present invention;

4 is a rear view of yet another DC conversion cabinet of the present invention;

1-cabinet, 2-first partition, 3-power conversion equipment, 4-second partition, 5-input fuse, 11-side plate, 12-cabinet door, 31-DC power unit, 32-input Circuit breaker, 33-monitoring equipment, 34-output fuse, 100-DC conversion cabinet, 111-first side panel, 112-second side panel, 121-first cabinet door, 122-second cabinet door.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that the described embodiments are in fact only some, not all, of the embodiments of the present invention, and are merely illustrative in fact and in no way intended to limit the present invention and its application or use. The scope of protection of this application should be determined by the appended claims.

Example 1:

Fig. 1 is a front view of a DC conversion cabinet of the present invention, and Fig. 2 is a rear view of a DC conversion cabinet of the present invention. Below, in conjunction with Fig. 1 and Fig. 2, Figs. cabinet door. A specific embodiment of the DC conversion cabinet of the present invention is described, and the technical solution is as follows:

The DC conversion cabinet 100 includes a cabinet 1 and a plurality of first partitions 2, wherein FIG. 1 only shows four first partitions 2, the present invention does not have specific requirements on the number of the first partitions 2, and can be based on actual needs settings, which will not be described in detail below.

The cabinet 1 includes two opposite side panels 11 and two opposite cabinet doors 12, the side panels 11 and the cabinet doors 12 are rotatably connected, and the side panels 11 and the cabinet doors 12 extend in a direction perpendicular to the ground; 11 includes a first side panel 111 and a second side panel 112 arranged oppositely, and the cabinet door 12 includes a first cabinet door 121 and a second cabinet door 122 arranged oppositely, wherein the first side panel 111 and the second cabinet door 122 are rotatably connected , the second side panel 112 and the first cabinet door 121 are connected rotatably.

In the direction perpendicular to the ground, the first partitions 2 are sequentially arranged in the cabinet 1, and there is a first distance d1 between adjacent first partitions 2, and the two ends of the first partitions 2 are respectively connected to the side plates 11. Fixed connection; Optionally, the side plate 11 may also include a plurality of chutes arranged parallel to the ground, the first partition 2 is engaged with the chutes, and then part of the first partition 2 can be pulled out of the cabinet as required The body 1 is conducive to the maintenance of the equipment on the first partition 2 .

Also includes a plurality of power conversion devices 3, the power conversion devices 3 are located on the side of the first partition 2 away from the ground, and are respectively electrically connected with the DC power supply device and the DC communication device, and are used for the first signal provided by the DC power supply device. The step-down is the second signal, and provides the second signal for the DC communication device, and at least two power conversion devices 3 provide the second signal for the same DC communication device; Optionally, the DC conversion cabinet 100 includes four The power conversion device 3 is described above, and FIG. 1 only shows that four power conversion devices 3 are included. The present invention does not make specific requirements on the number of the power conversion devices 3, and can be set according to the needs of the DC communication equipment to ensure that a DC communication device is at least composed of The two power conversion devices 3 only need to provide signals, which will not be described in detail below.

The DC conversion cabinet 100 may include a plurality of power conversion devices 3, all of which work independently, and at least two power conversion devices 3 provide power for the same DC communication device at the same time. Neither will affect the power supply of the DC communication equipment, which can be beneficial to improve the fault protection capability of the DC conversion cabinet 100 .

Optionally, the total capacity of the power conversion device 3 is 48V and 1200A.

The power conversion device 3 includes a DC power device 31. The DC power device 31 is located on the side of the first partition 2 away from the ground, and is located on the side of the first partition 2 close to the cabinet door 12, and communicates with the DC power supply device and the DC respectively. The device is electrically connected, and is used to step down the first signal provided by the DC power supply device into a second signal, and provide the second signal for the DC communication device.

It can be understood that the total capacity of the DC power supply device is 240V, and the DC power device 31 in the power conversion device 3 steps down the voltage signal provided by the DC power supply device to the voltage signal required by the DC communication device. Under the condition of the same power, the current of the 48V voltage system that provides the voltage signal for the prior art is much larger than that of the 240V DC power supply equipment, and the fuse/circuit breaker required by the 48V voltage system connected in the prior art is larger; Proportional to the square of the current, the transmission line path is quite different from the 240V DC power supply equipment, which is conducive to reducing line investment. And because the power density of the 48V voltage system in the prior art is lower than the power density of the 240V DC power supply equipment, the problem of large space occupied by the power supply can be reduced by connecting the DC power supply equipment.

Example 2:

FIG. 3 is a front view of another DC conversion cabinet of the present invention, and FIG. 4 is a rear view of a DC conversion cabinet of the present invention. Hereinafter, another specific implementation of the DC conversion cabinet of the present invention will be described with reference to FIGS. 3 and 4 . For example, in order to illustrate the structure of the DC conversion cabinet 100 more intuitively, only the input fuse 34 disposed on the other side of the DC conversion cabinet 100 is shown in FIG. side cabinet door. The technical solution is as follows:

The DC conversion cabinet 100 includes a cabinet body 1 and a plurality of first partitions 2,

The cabinet 1 includes two opposite side panels 11 and two opposite cabinet doors 12, the side panels 11 and the cabinet doors 12 are rotatably connected, and the side panels 11 and the cabinet doors 12 extend in a direction perpendicular to the ground;

In the direction perpendicular to the ground, the first partitions 2 are sequentially arranged in the cabinet 1, and there is a first distance d1 between adjacent first partitions 2, and the two ends of the first partitions 2 are respectively connected to the side plates 11. Fixed connection; Optionally, the side plate 11 may also include a plurality of chutes arranged parallel to the ground, the first partition 2 is engaged with the chutes, and then part of the first partition 2 can be pulled out of the cabinet as required The body 1 is conducive to the maintenance of the equipment on the first partition 2 .

Also includes a plurality of power conversion devices 3, the power conversion devices 3 are located on the side of the first partition 2 away from the ground, and are respectively electrically connected with the DC power supply device and the DC communication device, and are used for the first signal provided by the DC power supply device. The voltage is reduced to a second signal, and provides the second signal for the DC communication device, and at least two power conversion devices 3 provide the second signal for the same DC communication device; wherein, the DC conversion cabinet 100 may include a plurality of power conversion devices 3 , the power conversion devices 3 work independently, and at least two power conversion devices 3 provide power for the same DC communication device at the same time, any power conversion device 3 has a power supply failure, it will not affect the power supply of the DC communication device, which can help improve the DC communication device. The failsafe capability of the conversion cabinet 100 .

Optionally, the total capacity of the power conversion device 3 is 48V and 1200A.

The power conversion device 3 includes a DC power device 31. The DC power device 31 is located on the side of the first partition 2 away from the ground, and is located on the side of the first partition 2 close to the cabinet door 12, and communicates with the DC power supply device and the DC respectively. The device is electrically connected, and is used to step down the first signal provided by the DC power supply device into a second signal, and provide the second signal for the DC communication device. Optionally, the power conversion device includes 6 DC power devices 31, and the total capacity of the DC power devices is 48V and 50A. Only 6 DC power devices 31 are shown in FIG. To make specific requirements, you can set it according to the actual situation, which will not be described in the following.

Optionally, the power conversion device 3 further includes a plurality of input circuit breakers 32; the input circuit breakers 32 are located on the side of the DC power device 31 away from the ground, and are respectively electrically connected to the DC power device 31 and the DC power supply equipment for controlling the DC power supply. Whether the power generator 31 receives the first signal sent by the DC power supply line device. Among them, the power conversion device 3 also includes 6 input circuit breakers 32, and the total capacity of the input circuit breakers is 20A, 2p, only 6 input circuit breakers 32 are shown in FIG. 2, the present invention does not affect the number of input circuit breakers 32 To make specific requirements, you can set it according to the actual situation, which will not be described in the following. Further, the power conversion device 3 is provided with a plurality of input circuit breakers 32, which can be used to control the shutdown of the DC power device 31 to prevent the control of the DC power device 31 from receiving excessive current or other problems affecting its life, thereby ensuring the power supply The service life of the conversion device 3.

Optionally, the power conversion device 3 further includes a monitoring device 33, the monitoring device 33 is located on the first partition 2, and is located on the side of the input circuit breaker that is close to the ground, and is electrically connected to the DC power device 31 and the input circuit breaker, respectively, It is used to monitor whether the DC power device 31 works normally in real time.

Optionally, the power conversion device 3 further includes an output fuse 34; the output fuse 34 is located on the side of the first partition 2 away from the ground, and is located on the side of the first partition 2 away from the DC power device 31, and is respectively connected to the DC The power unit 31 is electrically connected to the DC communication device, and is used for controlling whether the second signal provided by the DC power unit 31 is sent to the DC communication device. It can be understood that the DC conversion cabinet 100 includes a

Optionally, also include a second partition 4, the second partition 4 is located on the side of the first partition 2 away from the ground, and along the direction perpendicular to the ground, between the first partition 2 and the second partition 4 has a second distance d2;

It also includes an input fuse 5, the input fuse 35 is located on the side of the second partition 4 away from the ground, and the orthographic projection of the input fuse 35 on the ground and the orthographic projection of the DC power device 31 on the ground at least partially overlap, respectively. Each power conversion device 3 is electrically connected to the DC power supply line device, and is used to control whether the plurality of power conversion devices 3 receive the first signal sent by the DC power supply line device. It can be understood that the DC conversion cabinet 100 includes an input fuse 35 , and the input fuse 35 and the DC power device 31 are respectively located at both ends of the first partition 2 and are disposed close to the cabinet door 12 . By setting one input fuse 35, it can be used to control the shutdown of all power conversion devices 3 in the same DC conversion cabinet 100, thereby realizing the same control, and it is also equivalent to double control and protection of the power conversion devices 3, which is beneficial to improve the DC conversion. The service life of the cabinet 100. Optionally, the first distance d1 is equal to the second distance d2, or the first distance d1 is not equal to the second distance d2. Further, the second partitions 4 are arranged above all the first partitions 2, that is, the input fuse 35 is equivalent to being arranged at the position farthest from the ground of the DC converter cabinet 100. There is no specific requirement for the spacing between the boards 4, and it is sufficient to ensure that both the first spacing d1 and the second spacing d2 are greater than 0, which will not be repeated below.

It can be understood that the total capacity of the DC power supply device is 240V, and the DC power device 31 in the power conversion device 3 steps down the voltage signal provided by the DC power supply device to the voltage signal required by the DC communication device. Under the condition of the same power, the current of the 48V voltage system that provides the voltage signal for the prior art is much larger than that of the 240V DC power supply equipment, and the fuse/circuit breaker required by the 48V voltage system connected in the prior art is larger; Proportional to the square of the current, the transmission line path is quite different from the 240V DC power supply equipment, which is conducive to reducing line investment. And because the power density of the 48V voltage system in the prior art is lower than the power density of the 240V DC power supply equipment, the problem of large space occupied by the power supply can be reduced by connecting the DC power supply equipment.

It can be known from the above embodiments that the beneficial effects of the present application are:

First, the DC conversion cabinet provided by the present invention can be used to receive 240V DC power supply equipment. Under the condition of transmitting the same power, the current of the 48V voltage system is much larger than that of the 240V DC power supply equipment, and then the 48V voltage system connected in the prior art. The required fuse/circuit breaker specification is larger; and because the line loss is proportional to the square of the current, the transmission line path is quite different from the 240V DC power supply equipment, reducing the line investment.

Second, the DC conversion cabinet provided by the present invention can be used to receive 240V DC power supply equipment. Since the power density of the 48V voltage system in the prior art is lower than that of the 240V DC power supply equipment, it can be used for docking the DC power supply equipment. It is beneficial to reduce the problem that the power supply occupies a large space.

Third, the DC conversion cabinet provided by the present invention may include a plurality of power conversion devices, all of which work independently, and at least two power conversion devices simultaneously provide power for the same DC communication device, if any power conversion device has a power supply failure, It will not affect the power supply of the DC communication equipment, which can help to improve the fault protection capability of the DC conversion cabinet.

Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limit the scope of the invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. A DC conversion cabinet is characterized by comprising a cabinet body and a plurality of first clapboards,

the cabinet body comprises two oppositely arranged side plates and two oppositely arranged cabinet doors, the side plates are rotatably connected with the cabinet doors, and the side plates and the cabinet doors extend along the direction vertical to the ground;

the first partition plates are sequentially arranged in the cabinet body along the direction vertical to the ground, a first distance is formed between every two adjacent first partition plates, and two ends of each first partition plate are fixedly connected with the side plates respectively;

the power conversion equipment is positioned on one side of the first partition board, which is far away from the ground, and is electrically connected with the direct-current power supply equipment and the direct-current communication equipment respectively, and is used for reducing a first signal provided by the direct-current power supply equipment into a second signal and providing the second signal for the direct-current communication equipment, and at least two power conversion equipment provide the second signal for the same direct-current communication equipment;

the power supply conversion equipment comprises a direct current power device, wherein the direct current power device is positioned on one side, away from the ground, of the first partition plate, is positioned on one side, close to the cabinet door, of the first partition plate, and is respectively electrically connected with the direct current power supply equipment and the direct current communication equipment, and is used for reducing a first signal provided by the direct current power supply equipment into a second signal and providing the second signal for the direct current communication equipment.

2. The dc conversion cabinet of claim 1, wherein the power conversion device further comprises a plurality of input circuit breakers;

the input circuit breaker is located on one side, far away from the ground, of the direct current power device, is electrically connected with the direct current power device and the direct current power supply equipment respectively, and is used for controlling whether the direct current power device receives the first signal sent by the direct current power supply equipment.

3. The DC conversion cabinet of claim 2, wherein the power conversion device further comprises a monitoring device,

the monitoring equipment is located on the first partition plate, is located on one side, close to the ground, of the input breaker, is respectively electrically connected with the direct-current power device and the input breaker and is used for monitoring whether the direct-current power device works normally or not in real time.

4. The DC conversion cabinet of claim 3, wherein the power conversion device further comprises an output fuse;

the output fuse is located one side that ground was kept away from to first baffle, and is located one side that direct current power ware was kept away from to first baffle, respectively with direct current power ware with direct current communication equipment electricity is connected, is used for control direct current power ware provides whether the second signal send to direct current communication equipment.

5. The DC conversion cabinet according to claim 1, further comprising a second partition plate, the second partition plate being located on a side of the first partition plate away from the ground, and the first partition plate and the second partition plate having a second distance therebetween in a direction perpendicular to the ground;

still include the input fuse, the input fuse is located one side that ground was kept away from to the second baffle, just the orthographic projection of input fuse on ground with the orthographic projection of direct current power ware on ground at least partially overlaps, respectively with a plurality of power conversion equipment with direct current power supply line equipment electricity is connected, is used for controlling a plurality of whether power conversion equipment receives direct current power supply line equipment sends first signal.

6. The DC conversion cabinet of claim 5, wherein the first pitch is equal to the second pitch, or the first pitch is not equal to the second pitch.

7. The dc conversion cabinet according to claim 1, wherein the dc conversion cabinet includes 4 of the power conversion devices.

8. The dc conversion cabinet of claim 1, wherein the total capacity of the power conversion device is 48V, 1200A.

9. The dc conversion cabinet according to claim 1, wherein the power conversion apparatus comprises 6 dc power devices, and the total capacity of the dc power devices is 48V, 50A.

10. The dc conversion cabinet of claim 2, wherein the power conversion device further comprises 6 input breakers, and the input breakers have a total capacity of 20A, 2 p.

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