CN111183559A

CN111183559A - Power distribution equipment and power distribution system

Info

Publication number: CN111183559A
Application number: CN201980004276.8A
Authority: CN
Inventors: 赵福高; 马成; 冉小可
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Digital Power Technologies Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-19

Abstract

The application discloses distribution equipment and distribution system, distribution equipment includes: a power distribution device and a power distribution box; wherein the power distribution device is pluggable from the power distribution box; the first end of the distribution device is provided with a wiring port, and the wiring port is connected with a power line or a user load wiring; the second end of the power distribution device is provided with a power connecting end; the power connecting end is inserted into a bus bar in the distribution box; the connection port and the power connection are connected within the power distribution device. The pluggable design of the distribution device and the distribution box simplifies the operation difficulty, improves the convenience, even if a non-professional person can also complete the operation, people can complete the disassembly and the replacement of the distribution device in a short time, and the execution efficiency of the fault maintenance work of the distribution device is obviously improved. Meanwhile, the wiring port can be arranged at the first end of the power distribution device, for example, the front end of the power distribution device facing a user is very visual for the user, and therefore the operation convenience of maintaining the power distribution device is further improved.

Description

Power distribution equipment and power distribution system

Technical Field

The application relates to the field of power supply equipment, in particular to power distribution equipment and a power distribution system.

Background

With the rapid development of networks and big data, the power distribution cabinets needed by the communication base stations and the data centers are more and more complex. And the power distribution system in the power distribution cabinet is used for providing a working power supply for the base station or the server. For example, the dc power distribution of a-48V power system in a communication base station is usually based on a-48V bus bar, a series fuse or a circuit breaker as an output protection device, or a connector without a protection function is configured to be directly connected as an output.

The protection device may comprise a fuse or a circuit breaker, among others.

The fuse is a current protector which fuses a melt by heat generated by itself to break a circuit when a current exceeds a predetermined value. The circuit breaker is a device capable of automatically breaking a circuit when faults such as severe overload, open circuit or undervoltage occur to power equipment. In a communication power distribution system, a fuse or a circuit breaker is generally used as a power distribution device for output protection. In addition, in the power distribution system, a connector without a protection function is often disposed as a power distribution device to directly connect the bus bar power distribution output.

Referring to fig. 1, a front view of a power distribution apparatus formed from circuit breakers is shown.

In the device shown in fig. 1, a busbar is distributed to each output circuit breaker through a copper claw, and the load end of the circuit breaker is connected through a front screwed wire to realize power distribution output. However, the power distribution equipment with the connection structure is inconvenient for equipment maintenance, when any one breaker breaks down and needs to be disassembled and replaced, the screw needs to be disassembled and unscrewed, the empty guide rail buckle is pried open, the lower part of the power distribution equipment is pulled forwards and pulled upwards. Whole dismantlement process is consuming time longer, and non-professional can't accomplish the dismantlement of circuit breaker and change.

Therefore, the operation of disassembling and replacing the distribution device of the existing distribution equipment and distribution system is too complex, the execution is inconvenient, and the execution efficiency of fault maintenance work is influenced.

Content of application

For solving above problem, this application provides a distribution equipment and distribution system to simplify the operation when dismantling the change distribution device, improve distribution system fault maintenance work's execution efficiency.

In a first aspect, an embodiment of the present application provides a power distribution apparatus, including: a power distribution device and a power distribution box;

the distribution device is pluggable from the distribution box; the first end of the distribution device is provided with a wiring port which is used for connecting a power line or a user load wiring; the second end of the power distribution device is provided with a power connecting end; the power connecting end is used for plugging a bus bar in the distribution box; the connection port and the power connection are connected within the power distribution device.

Optionally, the distribution device is a connector, a fuse, or a circuit breaker.

In order to indicate an abnormal condition inside the power distribution device, optionally, the rear end of the power distribution device is further provided with: a signal terminal; the signal terminal is used for plugging a signal bar in the distribution box, and the signal terminal is connected with the wiring port in the distribution device through a resistor and a diode which are connected in series. The signal end is plugged with a signal bar arranged in the distribution box and is used for outputting an alarm signal when the internal connection of the distribution device is disconnected. Thereby indicating an abnormal condition inside the power distribution device.

Optionally, one side of the power distribution device is provided with a lock catch; the upper cover of the distribution box is provided with a square hole corresponding to the lock catch. The latch can prevent the power distribution device from being pulled out under the condition of electrification.

Optionally, the power distribution device further comprises: pulling a handle; the pulling handle is arranged at the front end of the power distribution device; when the distribution device is a circuit breaker or a fuse, the internal mechanism of the pulling handle is connected with the distribution device, and when the pulling handle is pulled out, the wiring port and the power connecting end are disconnected; when the pulling handle is pushed, the wiring port is communicated with the power connecting end. The power distribution equipment is disassembled and replaced, the power distribution device does not need to power off the whole power distribution system, and the power distribution device can be separated from the power distribution box only by acting external force on the pulling handle. Therefore, the continuity of the work of the power distribution system cannot be influenced when the power distribution device is disassembled and replaced by the power distribution equipment.

In order to determine whether the connection between the distribution device and the distribution box is effective or not, optionally, when the distribution device is a breaker, a closing protection rod is arranged on one side of the distribution device; the closing protection lever is in a free state when the power distribution device is not inserted into the distribution box, and is compressed by the distribution box upper cover when the power distribution device is inserted into the distribution box.

The switching-on protection rod is in a free state when the power distribution device is not inserted into the power distribution box or is not inserted in place, at the moment, the internal mechanism of the power distribution device is locked, the internal contact cannot be closed, and the power distribution device is invalid in connection with the power distribution box; the closing protection rod is compressed by the upper cover of the distribution box when the distribution device is inserted into the distribution box, the distribution device is inserted in place at the moment, the internal mechanism of the distribution device is unlocked, the internal contact can be closed and conducted, and the distribution device is effectively connected with the distribution box. Therefore, the closing protection rod can assist in determining the effectiveness of connection of the distribution device and the distribution box.

Optionally, the number of the wiring ports is one or two, and the number of the power connection terminals is one or two.

Optionally, the power distribution device is elongate.

Optionally, the power distribution device includes a plurality of power distribution devices, the plurality of power distribution devices are connected in parallel and plugged into the power distribution box, the power connection terminals of the plurality of power distribution devices share the same bus bar, or the power connection terminals of the plurality of power distribution devices correspond to different bus bars respectively.

Alternatively, the power distribution device is installed in the space of one rack unit U. Is convenient for integrated management.

In a second aspect, an embodiment of the present application provides a power distribution system, including the power distribution device provided in the foregoing first aspect, the power distribution device includes at least two of the following: a first power distribution device and a second power distribution device;

the first power distribution equipment and the second power distribution equipment are stacked up and down, and the wiring direction of the first power distribution equipment is consistent with that of the second power distribution equipment;

or the like, or, alternatively,

the first power distribution equipment and the second power distribution equipment are stacked up and down, and the wiring direction of the first power distribution equipment is opposite to that of the second power distribution equipment;

or the like, or, alternatively,

the first power distribution equipment and the second power distribution equipment are stacked in a staggered mode front and back, and the wiring directions of the first power distribution equipment and the second power distribution equipment are consistent.

Compared with the prior art, the method has the advantages that:

the application provides a power distribution device, includes: a power distribution device and a power distribution box; wherein the power distribution device is pluggable from the power distribution box; the first end of the distribution device is provided with a wiring port which is used for connecting a power line or a user load wiring; the second end of the power distribution device is provided with a power connecting end; the power connecting end is used for plugging a bus bar in the distribution box; the connection port and the power connection are connected within the power distribution device.

Utilize the distribution equipment that this application provided, when needs dismantle the change distribution device, only need extract the distribution device spare of trouble, make its power connection end break away from the busbar, insert the relevant position in the block terminal with new distribution device spare again, make its power wiring end and busbar peg graft, the wiring mouth is good power cord or user load wiring, accomplishes the dismantlement change of distribution device promptly. It is thus clear that, among the distribution equipment that this application provided, the operation degree of difficulty has been simplified with the pluggable design of distribution box to the distribution device, has improved the convenience, even if non-professional also can accomplish this operation, people can accomplish the dismantlement and the change of distribution device in short time, show the execution efficiency who promotes distribution equipment troubleshooting work. Meanwhile, the wiring port is arranged at the first end of the power distribution device, the first end can be the front end of the power distribution device facing a user, and the wiring port is very visual for the user, so that the operation convenience of maintaining the power distribution device is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front view of a power distribution apparatus formed from circuit breakers;

FIG. 2 is a schematic diagram of a power distribution apparatus provided herein;

FIG. 3 is a schematic diagram of a configuration of a power distribution device provided herein;

FIG. 4 is a schematic diagram of an assembled power distribution apparatus provided herein;

FIG. 5 is a schematic view of an electrical connection within a power distribution device provided herein;

FIG. 6 is a schematic diagram of an assembled power distribution apparatus provided herein;

FIG. 7 is a schematic diagram of the electrical connections within each of the power distribution devices provided herein in parallel;

fig. 8 is a schematic diagram of a combining alarm principle provided in the present application;

FIG. 9 is a schematic view of another electrical connection provided within a power distribution device of the present application;

FIG. 10 is a schematic view of another alternative electrical connection provided by the present application within individual power distribution devices connected in parallel;

fig. 11 is a schematic diagram of a power distribution system routing manner provided in the present application;

fig. 12 is a schematic diagram of another power distribution system routing method provided in the present application.

Detailed Description

Based on the foregoing, when the power distribution device fails and needs to be detached and replaced, the operation of the existing power distribution device is not convenient, the time consumption is long, the professional ability of the working personnel is required, and the execution efficiency of system fault maintenance work is affected.

To address this problem, the present application provides a power distribution device and an associated power distribution system. The power distribution apparatus includes: a power distribution device and a power distribution box; wherein the power distribution device is pluggable from the power distribution box; the first end of the distribution device is provided with a wiring port which is used for connecting a power line or a user load wiring; the second end of the power distribution device is provided with a power connecting end; the power connecting end is used for plugging a bus bar in the distribution box; the connection port and the power connection are connected within the power distribution device.

Utilize the distribution equipment that this application provided, when needs dismantle the change distribution device, only need extract the distribution device spare of trouble, make its power connection end break away from the busbar, insert the relevant position in the block terminal with new distribution device spare again, make its power wiring end and busbar peg graft, the wiring mouth is good power cord or user load wiring, accomplishes the dismantlement change of distribution device promptly. It is thus clear that, among the distribution equipment that this application provided, the operation degree of difficulty has been simplified with the pluggable design of distribution box to the distribution device, has improved the convenience, even if non-professional also can accomplish this operation, people can accomplish the dismantlement and the change of distribution device in short time, show the execution efficiency who promotes distribution equipment troubleshooting work.

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 2, the diagram is a schematic structural diagram of a power distribution apparatus according to an embodiment of the present application. Fig. 3 is a schematic structural diagram of a power distribution device according to an embodiment of the present application. Fig. 4 is a schematic assembly diagram of a power distribution device according to an embodiment of the present disclosure.

Referring to fig. 2 to 4, an embodiment of the present application provides a power distribution apparatus, including:

the power distribution box 1 and the power distribution device 2, and the power distribution device 2 is pluggable from the power distribution box 1. Fig. 2 shows a connected state in which the power distribution device 2 is inserted into the power distribution box 1.

The power distribution device in the embodiment of the application can be a front outgoing line plug-in electric connector, a front outgoing line plug-in circuit breaker or a front outgoing line plug-in fuse. The power distribution device may be elongate and one end of the power distribution device is referred to as the first end and the other end is referred to as the second end. The power distribution device and the power distribution equipment are described below by taking the first end as the front end of the power distribution device facing the user and the second end as the back end of the power distribution device facing away from the user as an example.

The front end of the distribution device 2 is provided with a connection port 24, the connection port 24 being used for connecting a power supply line or a user load connection 3.

The rear end of the power distribution device 2 is provided with a power connection end 21; a power connection 21 for plugging a busbar inside the distribution box 1;

the connection port 24 and the power connection 21 are connected within the power distribution device 2.

Since the connection ports communicate with the power terminals within the power distribution device, the number of connection ports corresponds to the number of power terminals. The implementation of the power distribution device 2 with two connection ports and two power terminals is described in detail below.

The distribution device 2 is provided with a connection port 24 and a connection port 25, and

power terminals

21 and 22. Within the distributor block, the connection port 24 is connected to the power connection 21 and the connection port 25 is connected to the power connection 22.

For the unusual situation in suggestion distribution device, as a possible implementation, the rear end of distribution device that this application provided still can be equipped with: a signal terminal 23. The signal terminals 23 are used for plugging in signal lines inside the distribution box 1.

One side of the power distribution device 2 is provided with a lock catch 27; the front end of the power distribution device 2 is provided with a wheel handle 26. A closing protection lever 28 is provided at one side of the power distribution device 2.

In this embodiment, the bus bar and the signal bar may be made of conductive materials. For example, the bus bar may be a bus bar, and the signal bar may be a signal bar. In the present embodiment, specific materials of the bus bar and the signal bar are not limited.

Utilize the distribution equipment that this application provided, when needs dismantle the change distribution device, only need extract the distribution device spare of trouble, make its power connection end break away from the busbar, insert the relevant position in the block terminal with new distribution device spare again, make its power wiring end and busbar peg graft, the wiring mouth is good power cord or user load wiring, accomplishes the dismantlement change of distribution device promptly. It is thus clear that, among the distribution equipment that this application provided, the operation degree of difficulty has been simplified with the pluggable design of distribution box to the distribution device, has improved the convenience, even if non-professional also can accomplish this operation, people can accomplish the dismantlement and the change of distribution device in short time, show the execution efficiency who promotes distribution equipment troubleshooting work. Meanwhile, the wiring port is arranged at the first end of the power distribution device (for example, the front end of the power distribution device facing a user), and the wiring port is very visual for the user, so that the operation convenience of maintaining the power distribution device is further improved.

It is understood that in practical applications, the number of the wiring ports of the power distribution device provided in the present embodiment may be one or more according to the needs of the power distribution system. For a direct current distribution system, when a distribution device is only provided with one wiring port, the wiring port can be used for connecting DC + or DC-; when the power distribution device is provided with two connection ports, the two connection ports are used for connecting DC + and DC-, respectively. For an alternating current distribution system, when a distribution device is only provided with one wiring port, the wiring port can be used for connecting L or N; when the power distribution device is provided with two wiring ports, the two wiring ports are respectively used for connecting L and N. It should be noted that, for a distribution device with only one wiring port, the wiring port defines positive and negative along with the system, and when the system busbar is negative voltage, the wiring port is connected with the DC-or ac-power supply N pole; when the system busbar is at positive voltage, the connecting port is connected with a DC + or an L pole of an AC power supply.

In some existing technical schemes, the positive and negative terminals of a power distribution system are not connected to one device. For example, the thermal magnetic circuit breaker shown in fig. 1 constitutes a power distribution device, which can only provide one output connection position, either positive or negative, by itself, and if it is desired to meet the connection requirement of the other pole, additional power distribution devices must be added. In addition, the circuit breaker realizes the front outgoing line, and an additional terminal must be added on the front panel, so that the space of the front panel is occupied, and the structural complexity and the cost are increased. The front end of the distribution device provided by the embodiment of the application is provided with the two

wiring ports

24 and 25, so that the distribution device is very convenient to wire and can meet the wiring requirements of two poles. Meanwhile, because the

wiring ports

24 and 25 are arranged at the front end of the power distribution device, additional terminals do not need to be added on the front panel, so that the space of the front panel is saved, and the complexity of the equipment structure is reduced.

For ease of understanding, the assembled relationship of the power distribution devices is described below in conjunction with fig. 4.

As shown in fig. 4, a bus bar 11 and a bus bar 12 are arranged in parallel inside the distribution box. In operation, the distribution device 2 is inserted into the distribution box, and the

power terminals

21 and 22 of the distribution device 2 are respectively clamped on the bus bars 11 and 12. The elastic contact pieces inside the power distribution device 21 are elastically fitted to the upper and lower surfaces of the bus bar 11, and the spring contact pieces inside the power distribution device 22 are elastically fitted to the upper and lower surfaces of the bus bar 12, whereby the power distribution device 2 is electrically connected to the distribution box in a stable manner. In practical applications, current may be input to the bus bar from the power distribution device or output from the bus bar to the power distribution device.

The distribution box is also provided with a signal bar 13 inside. The signal terminal 23 of the switching device 2 is plugged into a signal bar 13 arranged inside the switching box for outputting an alarm signal when the internal connection of the switching device is broken.

An L-shaped guide 151 is provided above the distribution box lower cover 15, and the guide 151 is used to guide the insertion or extraction direction of the distribution device 2 when the distribution device 2 is inserted into or extracted from the distribution box.

It will be appreciated that the power distribution device may be elongate as shown in figures 3 and 4, although other shapes are possible. The embodiment of the present application does not limit the specific shape of the power distribution device in the power distribution equipment.

It is understood that, in the present embodiment, the power distribution device may be a power distribution device not equipped with a circuit protection function, and is used only as a device having a connection function, such as a connector; of course, the power distribution device may also be a power distribution device equipped with a circuit protection function, such as a circuit breaker or a fuse. For ease of understanding, the following provides an implementation of a power distribution device with circuit protection.

When the distribution device is a circuit breaker or a fuse, the distribution device can realize the circuit protection function of overload and short circuit.

The embodiment further provides an implementation mode of the electrical connection relation between the internal wiring port of the power distribution device and the signal end. Please refer to fig. 5 in detail, which is an electrical schematic diagram of the internal components of the power distribution device provided in the application. The connection of the internal connection openings 24 of the power distribution device 2 to the power connection terminals 21 and the signal terminals 23 and the connection of the internal connection openings 25 of the power distribution device 2 to the power connection terminals 22 can be seen from a visual representation in fig. 5. As shown in fig. 5, the power distribution device internal connection port 24 is connected to the signal terminal 23 through a resistor and a diode connected in series.

For the distribution equipment shown in figure 1, due to the connection mode of the circuit breaker, the busbar and the load end, when a certain circuit breaker breaks down and needs to be detached and replaced by a maintenance worker, a tool and a structural member are easy to be short-circuited to a charged body, and further personal safety is threatened. Therefore, the existing distribution equipment structure cannot realize safe replacement under the condition of system electrification, and the whole distribution system must be powered off when the breaker is broken down and replaced every time. Thus, continuous operation of the power distribution system is disturbed.

In order to further solve the problem, the power distribution equipment provided by the application can realize the safe replacement of the power distribution device under the condition that the power distribution system is not powered off. An implementation of the distribution device is described below with reference to fig. 6.

Referring to fig. 6, a schematic diagram of an assembled power distribution device according to an embodiment of the present disclosure is shown.

A wheel handle 26 is provided at the front end of the power distributor 2, and the internal mechanism of the wheel handle 26 can be connected to the power distributor. When the power distribution device 2 is a circuit breaker or a fuse, the connection between the wiring port and the power connection terminal is disconnected when the pulling handle 26 is pulled out; when the pull handle 26 is pushed forward, the connection ports and the power connection terminals are connected.

In the embodiment of the present application, one or more square holes 141 may be disposed on the distribution box upper cover 14, and the latch 27 on each distribution device may correspond to the square hole on the distribution box upper cover 14. It will be appreciated that the number of square holes 141 in the distribution box top cover 14 may be greater than or equal to the total number of latches 27 of the distribution box-housed power distribution equipment.

In practical applications, the latch 27 is located in the square hole 141 and cannot be compressed by the upper cover 14 until the contacts inside the power distribution device 2 are not opened, thereby preventing the power distribution device 2 from being pulled out under a charged condition. Only when the power distribution device 2 is pulled by an external force to the handle 26, the contacts inside the power distribution device 2 are opened, and at this time, the latch 27 can be compressed downward to be separated from the square hole 141, and the power distribution device 2 can be pulled out of the power distribution box as a whole.

Therefore, the power distribution equipment provided by the application realizes the safe extraction of the power distribution device through the pulling handle 26, the latch 27 and the square hole 141 matched with the latch 27 on the power distribution box. Therefore, in this application, the distribution equipment is torn open and is traded distribution device and need not to break off power supply to whole distribution system, only needs to act on pull handle 26 with external force, can make distribution device 2 break away from the block terminal. Therefore, the continuity of the work of the power distribution system cannot be influenced when the power distribution device is disassembled and replaced by the power distribution equipment.

It is understood that the shape of the latch 27 in this embodiment may be as shown in fig. 6, or may be other shapes. Thus, the hole 141 of the distribution box cover 14 that mates with the latch 27 may have other hole shapes than a square shape.

Because among the distribution equipment that this application provided, distribution device and block terminal plug are connected, only when the effective distribution box that inserts of distribution device, distribution equipment just can normal use. Therefore, it is a clear point in the application of the distribution device how to determine the effectiveness of the connection of the distribution device to the distribution box.

In order to determine whether the connection between the distribution device 2 and the distribution box is effective or not, the present application provides a distribution device in which a closing protection rod 28 is disposed on one side of the distribution device 2.

The description will be made with the distribution device 2 as a circuit breaker. The closing protection lever 28 is in a free state when the power distribution device 2 (circuit breaker) is not inserted into the power distribution box or is not inserted in place, at this time, the internal mechanism of the power distribution device 2 is locked, the internal contact cannot be closed, that is, the power distribution device 2 is not connected with the power distribution box; the closing protection lever 28 is compressed by the distribution box cover 14 when the distribution device 2 is inserted into the distribution box, and at this time, the distribution device is inserted in place, the internal mechanism of the distribution device 2 is unlocked, the internal contact can be closed and conducted, that is, the distribution device 2 is effectively connected with the distribution box.

It should be noted that the power distribution apparatus provided in this embodiment supports multiple parallel power distribution devices plugged into the power distribution box. As shown in fig. 4, the power connection terminals of the plurality of power distribution devices share the bus bar. The power connections 21 of the individual power distribution devices share the same busbar 11 and the power connections 22 of the individual power distribution devices share the same busbar 12. It is understood that, in practical applications, in the power distribution apparatus provided in the present embodiment, the power connection terminals 21 of the plurality of power distribution devices may be plugged into different bus bars 11, and the power connection terminals 22 of the plurality of power distribution devices may be plugged into different bus bars 12. For example, the power connections 21 of the power distribution devices K1 to K3 are plugged into one busbar 11, and the power connections 21 of the power distribution devices K4 to K6 are plugged into the other busbar 11; the power connections 22 of the power distribution devices K1 to K3 are plugged into one busbar 12, and the power connections 22 of the power distribution devices K4 to K6 are plugged into the other busbar 12. In the present embodiment, the specific number of each of the busbars 11 and 12 is not limited.

Of course, if the distribution devices are provided with signal terminals 23, the signal terminals of the individual distribution devices can be plugged together in the signal bank 13 within the distribution box.

Some existing technical schemes of power distribution equipment often do not support flexible increase of the number of paths. If the factory is full of the circuit breakers and the distribution devices, the distribution equipment cannot guarantee full use of all the distribution devices in all application scenes, and therefore the configuration of the circuit breakers and the distribution devices is wasted. And if the factory leaves the factory and the breaker and the distribution device are not configured, the power frame needs to be firstly detached for capacity expansion installation. According to the technical scheme, the distribution box of the distribution equipment is connected with the distribution device in a plugging mode, and the multi-path distribution device is connected in parallel in the distribution box in an inserting mode, so that the number of paths of the distribution equipment can be flexibly increased and decreased, and resource waste caused by fixed configuration is avoided.

If the internal electrical connections of the individual distribution devices are as shown in fig. 5, the schematic diagram of the internal electrical connections of the individual distribution devices in parallel can be seen in fig. 7, the signal terminals 23 of the individual branches being plugged together with a signal bank 13. A resistor and a diode are arranged in series between the connection port 24 and the signal terminal 23 of each distribution device. And, the connection direction of the internal diode of each power distribution device is the same. When any one of the parallel branches fails, the voltage of the signal bank 13 changes. Thus, by monitoring the voltage of the signal bank 13, a fault alarm can be implemented.

For the convenience of understanding the combined alarm principle, the following description is made with reference to the combined alarm principle diagram shown in fig. 8.

Referring to fig. 8, the figure is a schematic diagram of a combining alarm principle provided in the embodiment of the present application.

If the interior of the uppermost distribution device is disconnected in fig. 8, the voltage on the left side of the diode L1 of the distribution device becomes 0V, and the voltages on the left sides of the diodes L2 and L3 of the rest distribution devices are-53V normal. Therefore, the uppermost diode L1 is turned on, and the voltage of the signal line 13 becomes close to 0V. At this time, by monitoring the voltage of the signal bar 13, it is possible to identify and find a voltage abnormality, and further, it is possible to determine a distribution device having a failure among the plurality of distribution devices connected to the signal bar.

As a possible implementation manner, a light hole may be formed in the power distribution device housing, and when the diode inside the power distribution device is a light emitting diode and the light emitting diode is turned on, light emitted by the light emitting diode may be sent to the worker through the light hole. The light-emitting diode is conducted to emit light, and the power distribution device wiring port to which the light-emitting diode belongs is disconnected with the power connection end. And then, the staff identifies the distribution device fault according to the bright and dark state of each light hole, and pulls out the fault distribution device from the distribution box.

It is understood that the resistor and the diode connected in series between the connection port 24 and the signal terminal 23 shown in fig. 5 are optional devices, and are not necessarily provided. The connection port 24 and the signal terminal 23 may be directly connected. Referring to fig. 9, a schematic diagram of internal electrical connections of another distribution device provided in the embodiments of the present application is shown. If the internal electrical connections of the individual distribution devices are as shown in fig. 9, a schematic of the internal electrical connections of the individual distribution devices in parallel can be seen in fig. 10. Similarly to the foregoing embodiment, in the present embodiment, the signal terminals 23 of the plurality of power distribution devices connected in parallel are inserted to the independent signal terminals ST1, ST2, and ST3, respectively. When the voltage of any one signal terminal occurs, the abnormal circuit occurs in the power distribution device corresponding to the signal terminal.

The unit used by the united states alliance for electronics industry to calibrate equipment in a room, such as servers, network switches, etc., is called a rack unit. One rack unit is called "1U", and the height of 1U is 44.45 mm. At present, some existing power distribution equipment technical schemes have the defects that power distribution equipment occupies a large height and a large space which are often larger than 44.45mm, and therefore the high-density requirement cannot be met in a 1U space. And the distribution equipment that this application provided, because the plug connection design between its distributor and the block terminal, the effectual high space of having practiced thrift, and then can realize high density distribution in 1U space.

Based on the power distribution equipment provided by the foregoing embodiment, correspondingly, the application further provides a power distribution system. The power distribution system comprises at least two of the power distribution devices described in the previous embodiments.

By utilizing the distribution equipment in the distribution system, when the distribution device needs to be disassembled and replaced, only the failed distribution device needs to be pulled out, the power connecting end of the distribution device is separated from the busbar, the new distribution device is inserted into the corresponding position in the distribution box, the power wiring end of the distribution device is connected with the busbar in an inserting mode, and the power line or the user load wiring is connected at the wiring port, so that the disassembly and replacement of the distribution device are completed. It is thus clear that, among the distribution system that this application provided, the operation degree of difficulty has been simplified with the pluggable design of block terminal to the distribution device, has improved the convenience, even if non-professional also can accomplish this operation, people can accomplish the dismantlement and the change of distribution device in short time, show the execution efficiency who promotes distribution equipment trouble maintenance work. Meanwhile, the wiring port is arranged at the first end of the power distribution device, the first end can be the front end of the power distribution device facing a user, and the wiring port is very visual for the user, so that the operation convenience of maintaining the power distribution device is further improved.

In addition, if distribution equipment's distributor device is provided with pulling handle and hasp, be provided with on the block terminal with the hasp square hole of mutually supporting, then this distribution system realizes pulling out safely of distribution device. Consequently, in this application, distribution equipment is torn open and is traded distribution device and need not to break off the power supply of whole distribution system, only needs to act on the pulling handle with external force, can make distribution device break away from the block terminal. Therefore, the system provided by the application can be used for replacing the power distribution device without influencing the continuity of the work of the power distribution system.

In practical applications, various routing manners may be adopted for each power distribution device in the power distribution system provided by the present application, and several exemplary routing manners provided by the present application are described below with reference to the accompanying drawings. It should be noted that the line of the wiring is specifically a power line or a user load connection 3 (see fig. 2) at the first end of the electrical equipment.

In the following examples, the power distribution system comprises at least two power distribution devices, in particular two power distribution devices (a first power distribution device and a second power distribution device) are taken as an example.

The first routing manner example:

in this example, the first power distribution device and the second power distribution device of the power distribution system are stacked up and down, and the routing direction of the first power distribution device is consistent with that of the second power distribution device.

For example, the first power distribution device and the second power distribution device are both routed up, or both are routed down.

The second routing manner example:

in this example, the first power distribution device and the second power distribution device are stacked up and down, and the routing direction of the first power distribution device is opposite to the routing direction of the second power distribution device.

Referring to fig. 11, the drawing is a schematic diagram of a wiring manner of a power distribution system provided in the present application.

As shown in fig. 11, the system includes two power distribution devices: a first power distribution device 111 and a second power distribution device 112. The first power distribution equipment 111 and the second power distribution equipment 112 are stacked up and down, the first power distribution equipment 111 is arranged on the upper portion, the second power distribution equipment 112 is arranged on the lower portion, a power line or a user load wiring of the first power distribution equipment 111 is wired downwards, and a power line or a user load wiring of the second power distribution equipment 112 is wired upwards.

The third routing manner example:

in this example, the first power distribution device and the second power distribution device are stacked in front and back staggered layers, and the routing directions of the first power distribution device and the second power distribution device are consistent.

Referring to fig. 12, a schematic diagram of another power distribution system routing manner provided in the present application is shown.

As shown in fig. 12, the system includes two power distribution devices: a first power distribution device 121 and a second power distribution device 122. The first power distribution device 121 and the second power distribution device 122 are stacked in front and back staggered layers, and the wires of the first power distribution device 121 and the second power distribution device 122 are upward.

It will be appreciated that the two power distribution devices shown in fig. 12 can also be run down in unison by changing the split level position.

Of course, the above three ways are only exemplary routing ways. In practical application, other wiring modes can be selected according to the space size. Therefore, the present application does not specifically limit the routing manner of each power distribution device in the power distribution system.

It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application in any way. Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application. Those skilled in the art can now make numerous possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the claimed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the protection scope of the technical solution of the present application without departing from the content of the technical solution of the present application.

Claims

1. An electrical distribution apparatus, comprising: a power distribution device and a power distribution box;

the distribution device is pluggable from the distribution box;

the first end of the distribution device is provided with a wiring port which is used for connecting a power line or a user load wiring;

the second end of the power distribution device is provided with a power connection end; the power connecting end is used for plugging a bus bar in the distribution box;

the connection port and the power connection terminal are connected inside the power distribution device.

2. The electrical distribution apparatus of claim 1,

the distribution device is a connector, a fuse or a circuit breaker.

3. The electrical distribution apparatus of claim 1 or 2, wherein the back end of the electrical distribution apparatus is further provided with: a signal terminal;

the signal end is used for being plugged in a signal bar in the distribution box, and the wiring port in the distribution device is connected with the signal end through a resistor and a diode which are connected in series.

4. The electrical distribution apparatus of claim 1 or 2, wherein a latch is provided on one side of the electrical distribution apparatus;

the distribution box upper cover is provided with a square hole corresponding to the lock catch.

5. The electrical distribution apparatus of claim 2, wherein the electrical distribution device further comprises: pulling a handle;

the pull handle is arranged at the front end of the power distribution device;

when the distribution device is a circuit breaker, the internal mechanism of the pulling handle is connected with the circuit breaker, and when the pulling handle is pulled out, the wiring port and the power connecting end are disconnected; when the pulling handle is pushed forward, the wiring port is communicated with the power connecting end.

6. The power distribution apparatus of claim 2, wherein when the power distribution device is a circuit breaker, a closing protection lever is provided at one side of the power distribution device;

the switching protection lever is in a free state when the distribution device is not inserted into the distribution box, and is compressed by the distribution box upper cover when the distribution device is inserted into the distribution box.

7. The electrical distribution apparatus of claim 1, wherein the one or two of the patch ports and the one or two of the power connections.

8. The electrical distribution apparatus of claim 1, wherein the electrical distribution device is elongated.

9. The electrical distribution apparatus of claim 1, wherein the electrical distribution apparatus comprises a plurality of the electrical distribution devices, the plurality of electrical distribution devices are plugged into the electrical distribution box in parallel, power connection terminals of the plurality of electrical distribution devices share the same bus bar, or the power connection terminals of the plurality of electrical distribution devices correspond to different bus bars respectively.

10. The electrical distribution apparatus of claim 1 or 2, wherein the electrical distribution device is mounted in the space of one rack unit U.

11. An electrical distribution system comprising the electrical distribution apparatus of any of claims 1-10, the electrical distribution apparatus comprising at least two of: a first power distribution device and a second power distribution device;

or the like, or, alternatively,

the first power distribution equipment and the second power distribution equipment are stacked in a staggered mode from front to back, and the wiring directions of the first power distribution equipment and the second power distribution equipment are consistent.