CN219163837U - Three-phase output intelligent PDU - Google Patents

Abstract

The utility model relates to the technical field of power distribution units, in particular to an intelligent PDU with three-phase output, which comprises an input unit, an output unit and a control unit, wherein the input unit is provided with a power transmission line, and the output unit is provided with a three-phase output socket; the control unit is provided with a switching power supply module and an execution plate block, and the execution plate block is provided with a relay, a leakage protector and a metering chip. By arranging the execution plate of the control unit, each circuit of the independent three-phase output socket is provided with an independent relay, so that each circuit can be independently turned off, and the safety is improved. And a leakage protector is arranged on each independent three-phase output socket, so that the leakage condition of each three-phase output socket is detected, and each three-phase output socket is turned off through the relay. In summary, the three-phase high-power supply can be provided, and each socket can be cut off by an independent three-phase circuit simultaneously, and leakage can be protected more perfectly.

Description

Three-phase output intelligent PDU

Technical Field

The utility model relates to the technical field of power distribution units, in particular to an intelligent PDU with three-phase output.

Background

The PDU (Power DistributionUnit), which is a power distribution socket for a cabinet, is a product designed for providing power distribution for cabinet-type installed electrical equipment, has various series specifications of different functions, installation modes and different plug-in combinations, and can provide a proper rack-mounted power distribution solution for different power supply environments. The PDU application can make the power distribution in the cabinet more orderly, reliable, safe, professional and beautiful, and make the maintenance of the power in the cabinet more convenient and reliable.

At present, a single-phase PDU is generally adopted in a data center, and the maximum output current of a single socket can reach 16A, so that the output power of the single socket is 220v 16 a=3520w, and a server facing high power cannot meet the requirement of the server on power supply.

The power supply of the whole PDU is controlled by adopting a mode that a near-end breaker is used for controlling the on-off of a socket, and when a certain server is required to be overhauled or shut down, the server on the whole PDU can only be shut down at the same time, so that the long-time operation of the server is not facilitated.

In addition, the PDU of remote control on the market at present can only cut off single-phase power supply, if it is three-phase socket (high power output), can't cut off or can't cut off the power simultaneously in three phases, easily bring potential danger to follow-up operation.

The conventional PDU does not monitor the electrical parameters such as voltage, current and the like of each output port, but the leakage protection is mainly performed through the air switch, but the leakage protection of the air switch is not perfect enough, so that once the PDU leaks electricity, the leakage current is easy to damage a user or a server.

Therefore, how to provide three-phase high-power supply and simultaneously cut off the three phases of each socket independently and protect the electric leakage more perfectly is a technical problem to be solved.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.

The utility model provides an intelligent PDU (power distribution unit) with three-phase output, which comprises an input unit, an output unit and a control unit, wherein the input unit, the output unit and the control unit are electrically connected with each other, the input unit is provided with a power transmission line, the power transmission line is used for accessing the power of an external three-phase circuit, the output unit is provided with a three-phase output socket, one end of the three-phase output socket is connected with the power transmission line, and the other end of the three-phase output socket is used for outputting the power of the three-phase circuit to supply power for an external load; the control unit is provided with a switch power supply module and an execution plate block, the input end of the switch power supply module is connected with the power transmission line of the input unit, the output end of the switch power supply module is connected with the execution plate block, and the switch power supply module is used for supplying power to the execution plate block; the execution plate is provided with a relay, a leakage protector and a metering chip, wherein the relay and the leakage protector are connected to the power transmission line, the relay is used for controlling the power transmission line to be opened and closed, the leakage protector is used for monitoring the leakage condition of the three-phase output socket and transmitting the leakage condition to the relay, the metering chip is electrically connected with the relay and the leakage protector, and the metering chip is used for reading and controlling the working conditions of the relay and the leakage protector.

As a further scheme of the utility model: the control unit is provided with the master control plate, and the master control plate is provided with processing chip, display screen, pilot lamp and the button of each other electric connection with switching power supply module, and processing chip and measurement chip electric connection, processing chip are used for receiving and controlling the operating condition of measurement chip, and the display screen is used for showing the relevant data of processing chip and measurement chip work, and the pilot lamp is used for showing the operating condition of processing chip, and the button is used for the work of manual intervention operation processing chip.

As a further scheme of the utility model: the main control plate and the execution plate are both provided with a data cascade output port and a data cascade input port, and the data cascade output port is respectively and electrically connected with the metering chip and the processing chip and is used for respectively transmitting data required to be transmitted by the metering chip and the processing chip; the data cascade input port is electrically connected with the metering chip and the processing chip respectively and is used for receiving data required to be transmitted by the metering chip and the processing chip respectively.

As a further scheme of the utility model: the execution plate is provided with a voltage transformer and a current transformer, the voltage transformer and the current transformer are respectively connected with the power transmission line, the voltage transformer is used for monitoring the voltage value in the power transmission line and transmitting the voltage value to the metering chip, and the current transformer is used for monitoring the current value in the power transmission line and transmitting the current value to the metering chip.

As a further scheme of the utility model: the main control plate is provided with a detection data port, the detection data port is electrically connected with the processing chip, and the detection data port is used for accessing an external sensor and transmitting the numerical value transmitted by the sensor to the processing chip.

As a further scheme of the utility model: the input unit is provided with a wire inlet end and a wire inlet switch, the input end of the wire inlet end is connected with an external three-phase circuit, the output end of the wire inlet end is connected with the input end of the wire inlet switch, and the output end of the wire inlet switch is connected with the power transmission line; the incoming line switch is used for controlling the circuit switching of the whole PDU.

As a further scheme of the utility model: the intelligent PDU also comprises a shell, wherein mounting brackets are arranged at two ends of the shell and used for fixedly mounting the intelligent PDU on external equipment; the inside support that is provided with of casing, support the support and be used for firm casing with transmission line.

As a further scheme of the utility model: an insulating block is arranged in the shell and is abutted between the supporting bracket and the power transmission line, so that the power of the power transmission line cannot be conducted to the supporting bracket.

As a further scheme of the utility model: the control unit is provided with a main control plate and a plurality of execution plates.

As a further scheme of the utility model: one executive board correspondingly controls or operates two three-phase output sockets.

Compared with the prior art, the utility model has the beneficial effects that:

by arranging the execution plate of the control unit, an independent relay is arranged on each line of each independent three-phase output socket, so that each line of each three-phase output socket can be independently turned off, and the safety is improved to the greatest extent. Meanwhile, a leakage protector is arranged on each independent three-phase output socket, so that the leakage condition of each three-phase output socket is detected, and each three-phase output socket is turned off through the relay. The main control plate is further arranged, so that the working condition of the execution plate can be checked and controlled on site or remotely, and the daily work of machine room staff is facilitated. Therefore, the three-phase high-power supply can be provided, and simultaneously, each socket can be cut off independently and simultaneously, and the leakage can be more perfectly protected.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

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

FIG. 1 is a schematic view of the internal structure of the present utility model;

FIG. 2 is a schematic view of the incoming end structure of the present utility model;

FIG. 3 is a schematic view of the structure of an executive plate of the utility model;

FIG. 4 is a schematic diagram of the structure of the main control panel of the present utility model;

fig. 5 is a schematic view of the housing structure of the present utility model.

Reference numerals and names in the drawings are as follows:

10 an input unit; 11 wire inlet ends; 12 inlet wire switches; 13, a power transmission line; 20 output unit; a 21 three-phase output socket; 30 a control unit; 31 a switching power supply module; a 32 data concatenation input; 33 data concatenation output port; 34 circuit boards; 40 performing a plate; a 41 relay; 42 a leakage protector; 43 metering chip; a 44 voltage transformer; a 45 current transformer; 50 main control plate; 51 processing the chip; 52 display screen; 53 indicator lights; 54 keys; 55 detect data port; 60 shells; 61 mounting a bracket; 62 a support bracket; 63 insulating blocks.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1 to 5, in an embodiment of the present utility model, a three-phase output intelligent PDU includes an input unit 10, an output unit 20 and a control unit 30 electrically connected to each other, wherein the input unit 10 is provided with a power transmission line 13, the power transmission line 13 is used for accessing power of an external three-phase circuit, the output unit 20 is provided with a three-phase output socket 21, one end of the three-phase output socket 21 is connected with the power transmission line 13, and the other end of the three-phase output socket 21 is used for outputting power of the three-phase circuit to supply power for an external load; the control unit 30 is provided with a switch power supply module 31 and an execution plate 40, the input end of the switch power supply module 31 is connected with the power transmission line 13 of the input unit 10, the output end of the switch power supply module 31 is connected with the execution plate 40, and the switch power supply module 31 is used for supplying power to the execution plate 40; the execution plate 40 is provided with a relay 41, a leakage protector 42 and a metering chip 43, the relay 41 and the leakage protector 42 are connected to the power transmission line 13, the relay 41 is used for controlling the power transmission line 13 to be opened and closed, the leakage protector 42 is used for monitoring the leakage condition of the three-phase output socket 21 and transmitting the leakage condition to the relay 41, the metering chip 43 is electrically connected with the relay 41 and the leakage protector 42, and the metering chip 43 is used for reading and controlling the working conditions of the relay 41 and the leakage protector 42.

Specifically, the intelligent PDU includes a housing 60, and mounting brackets 61 for fixedly mounting the intelligent PDU on an external device are provided at both ends of the housing 60; inside the housing 60 there is a support bracket 62 for securing the transmission line 13 or the housing 60. It will be appreciated that the associated bracket and housing 60 may be fixedly attached using bolts or rivets. Meanwhile, the housing 60 includes an insulating block 63, and the insulating block 63 abuts between the support bracket 62 and the power transmission line 13, so that the power of the power transmission line 13 is not conducted to the support bracket 62. In addition, the execution board 40 and the main control board 50 may further include corresponding circuit boards 34, respectively, and the relay 41, the leakage protector 42, the metering chip 43, the voltage transformer 44 and the current transformer 45 may be mounted on the circuit boards 34 of the execution board 40, thereby realizing corresponding functions. The processing chip 51, the display screen 52, the indicator light 53, the keys 54 and the detection data port 55 may be mounted on the circuit board 34 of the main control board 50, thereby realizing corresponding functions. It will be appreciated that the data cascade input 32 and the data cascade output 33 are also mounted on respective circuit boards 34. The switching power supply module 31 may be a single module power supply, or may be a switching power supply composed of components mounted on the corresponding circuit board 34. The connection between the power transmission line 13 and the three-phase output socket 21, the switching power supply module 31, the relay 41, the earth leakage protector 42, and the above-described circuit board 34 may be made by a copper sheet (not shown in the figure) or a copper cable (not shown in the figure) of a large square, so that a large current required by an external load may be passed.

Among them, the relay 41 connected to the power transmission line 13 is preferably a three-phase circuit in which the relay 41 is installed for all three lines, thereby achieving simultaneous disconnection of the three lines. Similarly, the leakage protector 42 is preferably mounted on three lines of a three-phase circuit simultaneously. When the leakage protector 42 detects a leakage, a relevant signal may be transmitted to the relay 41, and the relay 41 immediately performs the off operation. The metering chip 43 is mounted on the circuit board 34, and can read the current working parameters and working states of the relay 41, the leakage protector 42, the voltage transformer 44 and the current transformer 45 in real time, so that the current working parameters and working states are fed back to the processing chip 51, the processing chip 51 displays relevant data after optimizing treatment on the display screen 52, and meanwhile, the relevant data are transmitted to a remote control server (not shown in the figure) through the data cascade output port 33, so that a worker can check and operate at a remote end. Meanwhile, the main control board 50 also has the function of nearby display and nearby operation parameter adjustment, and the main control board 50 comprises an indicator lamp 53, a key 54 or an audible and visual alarm (not shown in the figure), and alarms in the background and on site when abnormality occurs. It will be appreciated that the meter chip 43 may be used with existing meter chips 43 used with electrical energy systems, and the associated components may be read and operated.

As shown in fig. 4, the control unit 30 includes a main control board 50, the main control board 50 is electrically connected to an output end of the switching power supply module 31, the main control board 50 includes a processing chip 51, a display screen 52, an indicator light 53 and a key 54 electrically connected to each other, the processing chip 51 is electrically connected to the metering chip 43, the processing chip 51 is used for receiving and controlling the working condition of the metering chip 43, the display screen 52 is used for displaying related data of the working of the processing chip 51 and the metering chip 43, the indicator light 53 is used for displaying the working condition of the processing chip 51, and the key 54 is used for manually intervening in the working of the processing chip 51.

Specifically, the processing chip 51 may process the received corresponding data, and process the corresponding data according to a preset processing procedure, for example, flash alarm through the display screen 52 or the indicator lamp 53, or alarm or prompt through the remote server. Meanwhile, the processing chip 51 can also correspondingly display related data and processing conditions on the display screen 52, and staff can also correspondingly operate and control the PDU on site through the keys 54. Of course, the remote personnel may also operate and control through the remote server.

As shown in fig. 3 and fig. 4, the main control board 50 and the execution board 40 each include a data cascade output port 33 and a data cascade input port 32, where the data cascade output port 33 is electrically connected to the metering chip 43 and the processing chip 51 respectively, and is used for sending data required to be transferred by the metering chip 43 and the processing chip 51 respectively; the data cascade input port 32 is electrically connected to the metering chip 43 and the processing chip 51, respectively, and is used for receiving data required to be transmitted by the metering chip 43 and the processing chip 51, respectively.

In particular, the data cascade output 33 and the data cascade input 32 are preferably mounted on the respective circuit board 34, so that data transmission is performed for the relevant parameters of the components on the circuit board 34. Preferably, the data transmission is carried out by means of a connection form of the handle, so that the data of the executive board 40 can be transmitted to the active board, and the data of the main control board 50 can be transmitted to the executive board 40. The connection transmission mode of the hand-in-hand is that more than 3 devices are connected through one wire, and can be also called a bus system, namely in the system wiring architecture, the last device is only connected with the next device, and the hand-in-hand can be visually seen as hand-in-hand. It can be appreciated that the specific connection transmission mode can use various existing connection transmission modes, and the preferred serial communication standard protocol using the RS485 interface is used for communication.

As shown in fig. 3, the execution board 40 includes a voltage transformer 44 and a current transformer 45, the voltage transformer 44 and the current transformer 45 are respectively connected with the power transmission line 13, the voltage transformer 44 is used for monitoring the voltage value in the power transmission line 13 and transmitting the voltage value to the metering chip 43, and the current transformer 45 is used for monitoring the current value in the power transmission line 13 and transmitting the current value to the metering chip 43. Preferably, a voltage transformer 44 and a current transformer 45 may be installed on the execution board 40, so that the current voltage and current related to the three-phase output socket 21 are known in real time, and manual intervention and treatment are performed when the voltage and current are abnormal.

As shown in fig. 4, the main control board 50 includes a detection data port 55, the detection data port 55 is electrically connected with the processing chip 51, and the detection data port 55 is used for accessing an external sensor and transmitting a value transmitted by the sensor to the processing chip 51. Specifically, the detection data port 55 may be further installed on the main control board 50, so that the detection function of the main control board 50 may be extended, and a corresponding sensor may be accessed to receive corresponding detection data, for example, a temperature and humidity sensor, a smoke sensor, a water forbidden sensor, an access control sensor, a switch state sensor, etc. may be installed.

As shown in fig. 2, the input unit 10 includes a wire inlet end 11 and a wire inlet switch 12, wherein the input end of the wire inlet end 11 is connected with an external three-phase circuit, the output end of the wire inlet end 11 is connected with the input end of the wire inlet switch 12, and the output end of the wire inlet switch 12 is connected with the power transmission line 13; the incoming line switch 12 is used to control the circuit switching of the entire PDU. Preferably, the incoming line end 11 is connected by a large square copper cable, and the incoming line switch 12 is an air switch with a large current.

In addition, the control unit 30 preferably includes a main control panel 50 and a plurality of execution panels 40. One executive block 40 controls or operates two three-phase outlet sockets 21 correspondingly.

When the intelligent PDU is used, the incoming line end 11 of the intelligent PDU is connected to an external three-phase power supply, so that the PDU is electrified. Then the rear load is connected to the three-phase output socket 21, the incoming line switch 12 is turned on, and the whole PDU is electrified. The back-end load then begins to operate and the control unit 30 begins to detect and control the operating status of each three-phase output jack 21 of the PDU and tries to feed back to the display screen 52 and the remote server so that the operator can view and control each individual three-phase output jack 21 on site or remotely. When the rear load or the three-phase output socket 21 itself leaks electricity, the leakage protector 42 detects the current leakage condition in real time and transmits the leakage data to the relay 41, and when the relay 41 judges that the current leakage data exceeds the safety range after receiving the leakage data, three circuits of the current three-phase output socket 21 are simultaneously turned off, so that the safety of the rear load and personnel is ensured. The metering chip 43 also detects the leakage protector 42, the relay 41, the working parameters and the working state in real time, and tries to feed back to the processing chip 51, and the processing chip 51 processes the received corresponding data, so that the alarm operation needs to be performed, the alarm operation needs to be displayed on the display screen 52, and the alarm operation needs to be transmitted to a remote server. The field staff can observe and confirm the working condition of the PDU through the display screen 52 and the indicator lamp 53, and can also perform corresponding operation on the PDU through the key 54. A remote operator may also control the processing chip 51 via the network to perform the corresponding operation.

In addition, the metering chip 43 also detects the voltage transformer 44 and the current transformer 45 simultaneously, and records and transmits the real-time voltage and the real-time current of the present three-phase output socket 21. The processing chip 51 can also receive corresponding sensing data through an externally inserted sensor, and further perfect the working condition, working environment parameters and the like of the PDU.

To sum up, through the improvement of this application, can realize providing the high-power of three-phase simultaneously, can also carry out independent three-phase simultaneously to every socket and cut off, also can carry out more perfect protection to the electric leakage.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. The intelligent PDU with three-phase output comprises an input unit (10), an output unit (20) and a control unit (30) which are electrically connected with each other, wherein the input unit (10) is provided with a power transmission line (13), the power transmission line (13) is used for accessing the power of an external three-phase circuit, the output unit (20) is provided with a three-phase output socket (21), one end of the three-phase output socket (21) is connected with the power transmission line (13), and the other end of the three-phase output socket (21) is used for outputting the power of the three-phase circuit to supply power for an external load; the control unit (30) is provided with a switch power supply module (31) and an execution plate (40), the input end of the switch power supply module (31) is connected with the power transmission line (13) of the input unit (10), the output end of the switch power supply module (31) is connected with the execution plate (40), and the switch power supply module (31) is used for supplying power to the execution plate (40); the execution plate (40) is provided with a relay (41), a leakage protector (42) and a metering chip (43), the relay (41) and the leakage protector (42) are connected to the power transmission line (13), the relay (41) is used for controlling the opening and closing of the power transmission line (13), the leakage protector (42) is used for monitoring the leakage condition of the three-phase output socket (21) and transmitting the leakage condition to the relay (41), the metering chip (43) is electrically connected with the relay (41) and the leakage protector (42), and the metering chip (43) is used for reading and controlling the working condition of the relay (41) and the leakage protector (42).

2. The three-phase output intelligent PDU according to claim 1, wherein the control unit (30) is provided with a main control board (50), the main control board (50) is connected with an output end circuit of the switching power supply module (31), the main control board (50) is provided with a processing chip (51), a display screen (52), an indicator lamp (53) and a key (54) which are electrically connected with each other, the processing chip (51) is electrically connected with the metering chip (43), the processing chip (51) is used for receiving and controlling the working condition of the metering chip (43), the display screen (52) is used for displaying the related data of the working of the processing chip (51) and the metering chip (43), the indicator lamp (53) is used for displaying the working condition of the processing chip (51), and the key (54) is used for manually interfering the working of the operation processing chip (51).

3. The three-phase output intelligent PDU of claim 1, wherein the main control board (50) and the execution board (40) are both provided with a data cascade output port (33) and a data cascade input port (32), and the data cascade output port (33) is electrically connected with the metering chip (43) and the processing chip (51) respectively and is used for transmitting data required to be transmitted by the metering chip (43) and the processing chip (51) respectively; the data cascade input port (32) is electrically connected with the metering chip (43) and the processing chip (51) respectively and is used for receiving data required to be transmitted by the metering chip (43) and the processing chip (51) respectively.

4. The three-phase output intelligent PDU of claim 1, wherein the executing board (40) is provided with a voltage transformer (44) and a current transformer (45), the voltage transformer (44) and the current transformer (45) are respectively connected with the power transmission line (13), the voltage transformer (44) is used for monitoring the voltage value in the power transmission line (13) and transmitting the voltage value to the metering chip (43), and the current transformer (45) is used for monitoring the current value in the power transmission line (13) and transmitting the current value to the metering chip (43).

5. The three-phase output intelligent PDU of claim 1, wherein the main control board (50) is provided with a detection data port (55), the detection data port (55) is electrically connected with the processing chip (51), and the detection data port (55) is used for accessing an external sensor and transmitting a value transmitted by the sensor to the processing chip (51).

6. The intelligent PDU of three-phase output according to claim 1, wherein the input unit (10) is provided with a wire inlet end (11) and a wire inlet switch (12), the input end of the wire inlet end (11) is connected with an external three-phase circuit, the output end of the wire inlet end (11) is connected with the input end of the wire inlet switch (12), and the output end of the wire inlet switch (12) is connected with the power transmission line (13); the incoming line switch (12) is used for controlling the circuit of the whole PDU to be opened and closed.

7. The three-phase output intelligent PDU as claimed in claim 1, wherein the intelligent PDU further comprises a housing (60), wherein mounting brackets (61) are arranged at two ends of the housing (60), and the mounting brackets (61) are used for fixedly mounting the intelligent PDU on an external device; a supporting bracket (62) is arranged inside the shell (60), and the supporting bracket (62) is used for stabilizing the shell (60) and the power transmission line (13).

8. A three-phase output intelligent PDU as claimed in claim 1, characterized in that an insulating block (63) is arranged in the housing (60), the insulating block (63) being abutted between the support bracket (62) and the power transmission line (13) for preventing the power of the power transmission line (13) from being conducted to the support bracket (62).

9. A three-phase output intelligent PDU according to claim 1, characterized in that the control unit (30) is provided with a master control block (50) and a plurality of execution blocks (40).

10. A three-phase output intelligent PDU according to claim 1, characterized in that one executive block (40) controls or operates two three-phase output sockets (21) in correspondence.

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