CN107492955B - Family safety power distribution system and distribution box - Google Patents
Family safety power distribution system and distribution box Download PDFInfo
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- CN107492955B CN107492955B CN201710968347.9A CN201710968347A CN107492955B CN 107492955 B CN107492955 B CN 107492955B CN 201710968347 A CN201710968347 A CN 201710968347A CN 107492955 B CN107492955 B CN 107492955B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Abstract
In actual use, a main circuit protection module arranged in the system connects a mains supply input end into a circuit needing power supply, and a plurality of mutually independent branches are formed through an interface module; each branch is provided with an intelligent switch unit and an air switch unit which are connected in series, wherein the intelligent switch unit provides power detection and power control for the branch, and the air switch can provide short-circuit protection for the branch; the intelligent switch unit is connected with the communication module, and the detected signal is sent to a terminal of a user through the communication module, so that real-time monitoring is realized. The system respectively protects the main circuit and the branch circuits through the main circuit protection module and each branch circuit switch module, and maintains the stability of the whole power supply. And through setting up the air switch unit, guarantee that each branch road has good short-circuit protection ability, compensate intelligent switch unit's short-circuit breaking capacity not enough, solve the problem that traditional distribution system security is low.
Description
Technical Field
The application relates to the technical field of safe power distribution, in particular to a family safe power distribution system and a power distribution box.
Background
Due to the increase of household electric equipment, the load of a circuit formed by the electric equipment is increased, faults of a low-voltage distribution line such as overlarge current and unstable voltage are easily caused, and the electric safety is influenced. In order to reduce the influence of circuit load on the electricity safety, a power distribution system capable of reasonably distributing electric energy becomes a means for guaranteeing the electricity safety. The household power distribution is a control link which connects the commercial power input with a plurality of power utilization circuits and distributes electric energy to each circuit.
Typical family distribution system sets up a plurality of power consumption branch roads after connecting the commercial power input, sets up independent protection device on every circuit, and when the electric current of a certain branch road is too big, protection device starts, breaks off the power supply of this branch road to reduce the load of total circuit, avoid the too big consumer that burns out of electric current, and the influence of load fluctuation to other branch road voltage stability. In order to distribute the electric energy of each branch more reasonably, devices for metering and controlling are added in a typical household power distribution system in the prior art to form an intelligent power distribution system.
By adopting the intelligent power distribution system, a user can know the power utilization conditions of various electrical appliances in a family, so that the safety of the power utilization system is ensured. The existing intelligent power distribution system mainly realizes the on-off of a power supply circuit by controlling a relay mode at present, but because the short circuit breaking capacity of a relay switch scheme is limited, the risk of equipment burnout can be caused when household electrical sudden large current is short-circuited, and the safety of the power distribution system is seriously influenced. In addition, the existing power distribution system has various modules, and wiring disorder is easily caused, so that the connecting wires are mutually contacted and influenced, and the power utilization safety is reduced.
Disclosure of Invention
The application provides a family's safety distribution system and block terminal to solve the problem that traditional family's distribution system security is low.
On the one hand, this application provides a family's safety distribution system, including setting up the block terminal on transmission line, and with communication connection's terminal is established to the block terminal, wherein:
a main line protection module connected with a mains supply input end and an interface module connected with the main line protection module are arranged in the distribution box;
the interface module is connected with a plurality of switch modules which are connected in parallel, and each switch module comprises an intelligent switch unit and an air switch unit which is connected with the intelligent switch unit in series; the intelligent switch unit is used for measuring and detecting power supply information of the branch where the intelligent switch unit is located, and controlling power supply configuration of the branch where the intelligent switch unit is located according to detected power and voltage; the intelligent switch unit comprises a relay subunit, the relay subunit is used for controlling the on-off of the branch according to the detected power supply information and the instruction of the terminal, and the air switch unit is used for providing short-circuit protection for the branch; the power supply information comprises running power, power supply voltage and the on-off state of a corresponding branch circuit;
the distribution box is also internally provided with a communication module, the communication module is connected with the intelligent switch units in the branches, and the communication module is used for receiving power supply information detected by the intelligent switch units and sending the power supply information to the terminal; the communication module is further used for receiving the control signal of the terminal, sending the control signal to the intelligent switch unit and controlling the power supply configuration of each branch.
Optionally, the plurality of air switch units comprises at least 1 zero fire air switch and at least 1 single fire air switch;
the zero-fire air switch is used for distributing power for the branch in the zero-fire control mode, and the single-fire air switch is used for distributing power for the branch in the single-fire control mode.
Optionally, the interface module includes an interface unit, and a live line and neutral line bus bar connected to the main line protection module through the interface unit;
the live wire and zero wire bus bar is used for connecting the intelligent switch units on the branches;
the interface unit is closely connected with the main road protection module and the live wire and zero wire bus bar and used for reducing the transmission loss of electric energy.
Optionally, the interface module is connected to the intelligent switch units on the branches by using a two-stage bus bar.
Optionally, a communication interface for connecting the communication module, an input interface for connecting the interface module, and an output interface for connecting the air switch unit are provided on the intelligent switch unit;
the intelligent switch unit also comprises a detection metering subunit, a branch protection subunit and a branch control subunit, wherein the detection metering subunit is used for metering and detecting the power supply information of the branch in which the detection metering subunit is positioned; the branch protection subunit is used for providing an overcurrent protection function, an overvoltage protection function and an undervoltage protection function for the branch; and the branch control subunit is used for controlling the on-off of the branch according to the power supply information and sending the power supply information to the communication module through the communication interface.
Optionally, the communication module includes a communication interface board, and a communication control unit establishing communication connection with the intelligent switch units of the respective branches through the communication interface board;
the communication control unit is internally provided with a communication function subunit and a display subunit, the communication function subunit is used for establishing communication connection with the terminal, and the display subunit is used for displaying the power supply information.
Optionally, the communication module includes a power line carrier communication unit, the power line carrier communication unit is connected to the interface module, and the power line carrier communication unit establishes communication connection with the intelligent switch unit of each branch and the terminal through the interface module;
the power carrier communication unit is used for receiving the power supply information through the power transmission line and sending the power supply information to the terminal through the power transmission line.
Optionally, the system further includes a server, and the distribution box establishes a communication connection with the terminal through the server;
the server is used for receiving the detection signal of the distribution box and sending the detection signal to the terminal; the server is also used for receiving the control signal of the terminal and sending the control signal to the distribution box.
Optionally, a clamping type assembly interface is adopted between each functional module in the system.
On the other hand, this application still provides a family safety block terminal, includes:
the main circuit protection module is connected with a mains supply input end, and the interface device is connected with the main circuit protection module;
the live wire and zero wire bus bar is connected with a plurality of branch switch groups which are connected in parallel, and each branch switch group comprises an intelligent switch and an air switch connected with the intelligent switch in series; the intelligent switch is used for measuring and detecting power supply information of the branch where the intelligent switch is located, and controlling power supply configuration of the branch where the intelligent switch is located according to the power supply information; the intelligent switch is internally provided with a relay, the relay is used for controlling the on-off of the branch according to detected power supply information and a terminal instruction, and the air switch is used for providing short-circuit protection for the branch; the power supply information comprises running power, power supply voltage and the on-off state of a corresponding branch circuit;
the communication device is connected with the intelligent switches in the branches and used for receiving the power supply information and sending the signal to a user terminal; the communication device is also used for receiving the control signal of the user terminal, sending the control signal to the intelligent switch and controlling the power supply configuration of each branch.
According to the technical scheme, in the practical use of the household safety power distribution system and the power distribution box, the main line protection module arranged in the system accesses the commercial power input end into a circuit needing power supply, and the power supply of a plurality of branches is realized through the live line and zero line bus bar in the interface module; the intelligent switch units are used for providing power detection and power control for the branches, and the air switches can provide short-circuit protection for the branches; the intelligent switch units on the branches are connected to the communication module, and detected signals are sent to the user terminal through the communication module, so that the user can monitor the power distribution condition in real time.
In the family safety power distribution system that this application provided, set up total way protection module and each branch road switch module, protect total way and branch road respectively, maintain the stability of whole power supply. And through the series connection of the intelligent switch unit and the air switch unit, each branch circuit is guaranteed to have good short-circuit protection capability, and the short-circuit breaking capability of the intelligent switch module is compensated, so that the problem of low safety of the traditional power distribution system is solved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a home safety power distribution system;
FIG. 2 is a schematic diagram of an embodiment of a home safety power distribution system;
FIG. 3 is a schematic structural diagram of an intelligent switch unit;
FIG. 4 is a schematic diagram of a work flow of a home security power distribution system;
FIG. 5 is a schematic diagram of an embodiment of a home safety power distribution system;
fig. 6 is a schematic structural diagram of a home safety distribution box.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application.
Referring to fig. 1, a schematic structural diagram of a home safety power distribution system is shown. It can be seen from the structure that illustrates the figure, the family safety distribution system that this application provided includes, set up on the power transmission line block terminal and with establish communication connection between the block terminal, the block terminal further includes total way protection module, interface module, switch module and communication module, wherein:
the main circuit protection module is provided with an input end and an output end, wherein the input end is directly connected with a zero line and a live wire on a mains supply line, and the electric energy in the mains supply line is introduced into a household power supply network. The output end of the main circuit protection module is connected with the interface module and transmits electric energy to the interface module, so that each branch circuit gets electricity at the interface module, mutually independent power supply among all branch circuits is realized, and mutual influence on the power supply effect of each branch circuit is avoided.
Furthermore, a main circuit leakage protection circuit breaker is arranged in the main circuit protection module and is connected with each branch circuit through an interface module; the main circuit leakage protection circuit breaker is used for being connected with a mains supply input end and providing a leakage protection function for the main circuit. Obviously, the main circuit leakage protection circuit breaker should be internally provided with corresponding protection units, for example, units for realizing a main circuit leakage protection function, a main circuit short-circuit protection function, a main circuit overcurrent protection function and the like, so that the main circuit power input of the system is effectively protected to be safe and reliable. Besides the above units providing protection function, in practical use, the main line protection module may further include a manual disconnection unit for manually disconnecting the power supply of the whole system in individual emergency, so as to improve the safety of the whole system.
In this embodiment, the interface module includes an interface unit and a live wire and zero wire bus bar connected with the main line protection module through the interface unit; the live wire and zero wire bus bar is used for connecting the intelligent switch units on each branch; the interface unit is tightly connected with the main circuit protection module and the fire and zero line bus bar and used for reducing the transmission loss of electric energy. The interface unit zonulae occludens is total way protection module and live wire zero line busbar and indicates, sets up two incoming ends on the interface unit, zero line incoming end and live wire incoming end promptly, and two incoming ends correspond in the position with total way protection circuit breaker's output, and when the interface unit was fixed in the distribution box, two incoming ends coincidentally contacted with total way protection circuit breaker's output, and then accomplished the transmission of electric current. Similarly, still include two outputs on the interface unit, two outputs correspond with fire zero line busbar respectively in the position, after interface unit fixes in the block terminal, two outputs happen to be in contact with fire zero line busbar, such structure can avoid on the position that main circuit earth leakage protection circuit breaker and interface unit are connected to and use the connecting wire on the position that interface unit and fire zero line busbar are connected, not only can reduce the emergence of the electric leakage condition, can reduce the loss of electric energy at the hookup location moreover. In addition, the structure can also realize plug and play of the interface unit in the distribution box, thereby being convenient for installation and maintenance.
The live wire and neutral wire bus bar is provided with a plurality of pairs of output plug bars, and each pair of output plug bars comprises an output live wire plug bar and an output zero wire plug bar so as to respectively provide power access ports for all branches. Obviously, the number of output banks should be greater than or equal to the number of branches to be pre-tapped. The zero-live wire bus bar can be used for realizing shunt after the mains supply is connected into a household power utilization network, and the power supply stability of each branch is ensured. And, owing to use the zero live wire busbar, realized can adjusting branch road quantity at any time, simplified the wiring process, also reduced the loss of electric energy on transmission line simultaneously.
In a technical scheme, as shown in fig. 2, the interface module adopts a two-stage bus bar for access, so that the intelligent switch module can be directly connected with the interface module, the problems of wrong connection of installation and wiring, aging of electric wires, disordered system wiring and the like are avoided, the distribution box is convenient to install, and meanwhile, the distribution box also has higher reliability.
The switch module comprises an intelligent switch unit connected with the live wire and zero wire busbar output power strip and an air switch unit connected with the intelligent switch unit in series on a branch. The intelligent switch unit is internally provided with power supply information for detecting a branch where the intelligent switch unit is located, and the power supply information generally comprises the running power, the voltage fluctuation condition and the on-off condition of the branch. The operation state of the branch circuit can be determined according to the power supply information of the branch circuit by detecting the power supply information, so that whether the branch circuit has an abnormal condition or not is judged. For example, when the abnormal increase of power in a certain branch is detected, it can be determined that there may be a leakage or short circuit phenomenon on the branch, so that the power supply of the branch can be cut off by the intelligent switch unit, and a circuit fault caused by an excessive current is avoided.
Further, as shown in fig. 3, the intelligent switch unit is provided with a communication interface for connecting the communication module, an input interface for connecting the live wire and neutral wire bus bar, and an output interface for connecting the air switch unit. The intelligence switch unit still includes: the branch protection device comprises a relay subunit, a power supply subunit, a detection metering subunit, a branch protection subunit and a branch control subunit, wherein the relay subunit is used for controlling the on-off of a branch according to detected power supply information and an instruction of the terminal; the power supply subunit is used for getting electricity from the live wire and zero line bus bar and maintaining the work of each component in the intelligent switch unit; the detection meter quantum unit is used for measuring and detecting the power and the voltage of the branch in which the detection meter quantum unit is positioned and also used for detecting the on-off condition of the branch in which the detection meter quantum unit is positioned; the branch protection subunit is used for providing an overcurrent protection function, an overvoltage protection function and an undervoltage protection function for the branch; the branch control subunit is used for controlling the on-off of the branch according to the detection result of the detection metering subunit, and sending the detection result to the communication module through the communication interface.
In the power distribution system that this application provided, the relay subunit sets up on the branch road of supplying power, and when the branch road of locating appears supplying power unusual, if the power consumption of corresponding branch road increases suddenly, branch road control subunit makes the control command who cuts off the power supply according to the abnormal conditions and makes the relay subunit disconnection, realizes the branch road power supply of automatic cutout place to guarantee the purpose of safe power supply. The relay subunit can also send a control instruction according to the user terminal to cut off or switch on the branch power supply, for example, in actual use, when a user determines that a certain branch does not need to work through the power supply condition displayed by the terminal, a cut-off instruction is generated through operation on the terminal, the cut-off instruction is transmitted to the branch control subunit in the intelligent switch unit through the communication module, and the branch control subunit controls the relay subunit according to the cut-off instruction to cut off the branch, so that the branch power supply is actively cut off. Obviously, the relay subunit can also control the branch to be switched on according to the control instruction of the terminal, and the control mode of the relay subunit is the same as the control process of switching off the branch. In addition, in the technical scheme that this application provided, when the circuit takes place the abnormal conditions such as overcurrent, excessive pressure, undervoltage, also cut off the power supply of the branch road that is located through the relay subunit to the consumer under the protection corresponds the branch road.
Because the intelligent switch unit generally controls the on-off of the branch circuit of the relay through the controller, the working principle of the relay determines that the short-circuit breaking capacity of the relay is limited, so that the short-circuit current of the relay hardly meets the national standard requirement of a miniature circuit breaker, and the relay can be burnt out due to the fact that the relay cannot be timely disconnected when a large current is short-circuited, and the function of short-circuit protection cannot be achieved. Therefore, in this embodiment, each branch is provided with an air switch unit, and the purpose of timely cutting off the branch is achieved by using the characteristic that the air switch rapidly responds to the short-circuit large current. Generally, the air switch can respond within 100ms of the abnormal short-circuit condition of the branch circuit, the power supply of the branch circuit is cut off, and the short-circuit fault of the branch circuit caused by the action of large current can be avoided, so that the condition that the elements of a power distribution system or electric equipment are burnt due to insufficient circuit breaking capacity of a relay in an intelligent switch unit is reduced.
In one technical scheme, the air switch units respectively positioned on each branch comprise at least 1 zero fire air switch and at least 1 single fire air switch. That is, some of the air switches on the plurality of branches are air switches with zero fire, and other air switches are air switches with single fire, and the specific number may be determined according to the type of the electric devices in the household, for example, for electric devices with smaller power, such as small household appliances, lighting devices, etc., the electric devices may be connected to the branches corresponding to the air switches with single fire; for electric equipment with high power, such as a water heater, high-power cooking equipment and the like, the electric equipment can be connected to a branch corresponding to a zero-fire air switch. Through setting up zero fire air switch and single fire air switch, adaptation domestic consumer that can be better to arrange the block terminal according to the power condition of consumer and branch road, guarantee the normal operating of system.
The communication module is connected with the intelligent switch units in the branches, namely, the communication module is in communication connection with the intelligent switch units on the branches, and is used for receiving power and voltage signals detected by the intelligent switch units and sending the signals to the user terminal. In this embodiment, on one hand, the communication module receives the detection result of the quantum unit of the built-in detection meter of the intelligent switch unit according to the set frequency; and on the other hand, the detection result is processed to generate a digital signal for transmission and sent to the terminal of the user. The detection result comprises branch operating power and branch power supply voltage signals capable of reflecting the power supply state of each branch, and the on-off condition of each branch. In addition, the on-off condition not only includes the on-off condition of each branch in the current operation state, but also includes the on-off condition of the corresponding branch when the branch is cut off when an abnormal condition occurs in a certain branch. Furthermore, the communication module not only receives the detection result of the intelligent switch unit according to the set frequency, but also detects the on-off state of each branch in real time, and when a certain branch is powered off due to short circuit, the on-off condition of the branch can be directly obtained, and the on-off condition is sent to the terminal of a user in time.
The communication module is used for receiving a control signal sent by the user terminal and sending the control signal to the intelligent switch unit besides sending power supply information detected by the intelligent switch unit to the user terminal, and the intelligent switch unit adjusts power supply configuration of a corresponding branch according to the content of the control signal, namely, remote control over the household safety power distribution system is achieved. For example, when a user observes that the overall compliance of the home power supply network is large through the terminal, and when a part of branches, such as a lighting system in the daytime, can be switched off, the terminal performs an operation of switching off the part of branches, and generates a control signal containing a corresponding operation instruction and transmits the control signal to the communication module. After receiving the control signal, the communication module analyzes the control signal, determines a corresponding branch of the control signal which needs to execute the operation instruction, and sends the control signal to the intelligent switch unit on the corresponding instruction. After receiving the operation instruction, the switch unit cuts off the power supply of the branch in which the switch unit is arranged through a built-in relay, and the purpose of controlling the power distribution system through the user terminal is achieved.
In this embodiment, the user terminal refers to an intelligent terminal device capable of establishing communication with the distribution box, such as a mobile phone, a computer, a tablet computer, and the like. The communication between the user terminal and the distribution box can be established in the forms of LTE, Ethernet, wireless WiFi and the like, and the communication between the user terminal and the distribution box can also be established through the server by setting the server. When the server is adopted to establish communication connection, the communication module in the power distribution box transcodes the detection data and sends the detection data to the server after receiving the detection data of the intelligent switch unit, and the server generates a push message according to the detection data and sends the push message to the user terminal. Obviously, the push message should include the branch in which the abnormal condition occurs, the type of the abnormal condition, and the measure taken for the abnormal condition, so that the user can know the operation state of the home power distribution network in time.
In addition, because the abnormal conditions occur in the household power distribution network less frequently, in order to avoid frequent push messages, the server can firstly judge the received data, and if the received data are all within a reasonable preset range, the server does not generate the push messages or generates the push messages at a larger time interval; and if the received data exceeds a reasonable preset range, directly generating a push message and sending the push message to the user terminal so that the user can know abnormal conditions occurring in the household power distribution network in time. According to the embodiment, when the server is used for establishing the communication between the distribution box and the terminal, the limitation of the communication connection on the position of the terminal can be avoided, whether the message is pushed to the user terminal or not can be implemented according to the judgment of the server on the detection result, and the message is prevented from being pushed frequently. In addition, the server can be arranged, the server is used for receiving the control signal of the user terminal and sending the control signal to the distribution box, and the distribution box is controlled remotely.
Further, the communication module comprises a communication interface board and a communication control unit which establishes communication connection with the intelligent switch units in the branches through the communication interface board. The communication interface board is provided with a plurality of interfaces for connecting the intelligent switch unit, and each interface corresponds to one branch. The communication interface board can be used for transmitting data detected by the intelligent switch unit, and collecting and transmitting the detected data on the plurality of branches to the communication control unit through the interface board. The communication control unit is internally provided with a communication function subunit which establishes communication connection with the user terminal. As can be seen, the communication function subunit should be provided with a transmission circuit corresponding to the communication method, for example, an LTE data transmission circuit, an ethernet interface circuit, a WiFi circuit, and the like. In the actual working process, the communication function subunit codes the data after receiving the detection data transmitted by the communication interface board, generates a transmission signal in a corresponding communication mode, and transmits the transmission signal to the server or the user terminal.
In some embodiments of the present application, the communication control unit further includes a display subunit, and the display subunit is configured to display the power metering and the on-off state of the intelligent switch unit on each branch in the system. The display subunit displays the received detection data through a built-in display component, such as a screen, an indicator light and the like. Obviously, the content displayed in this embodiment should correspond to the type of the display component, for example, when the display component is a display screen, the detected data is converted into an image signal to be displayed on the screen, and for example, the picture displayed on the screen should include the operating power and voltage of each branch, and the on-off condition of each branch. For visual observation, a pattern corresponding to the structure in the distribution box can be drawn in advance on a screen, each branch can be clearly distinguished in the pattern, and the detection data of the branch is displayed at the position close to the pattern corresponding to the branch.
For another example, when the display component is an indicator light, a plurality of indicator lights may be disposed on the housing of the distribution box to respectively represent the operating states of the main circuit and the branch circuit, and the operating states of the corresponding circuits may be reflected by the colors or the flashing frequencies of the indicator lights. Illustratively, when the operating power of a certain branch is in a normal range, the indicator light on the branch is green; when the power of a certain branch is overlarge, the indicator light on the branch is yellow; when a certain branch circuit is cut off power supply due to the action of the protection circuit, the indicator lamp on the branch circuit is red, so that a user can know the power supply state of the power distribution network in real time by observing the indicator lamp.
In this embodiment, the display subunit built in the communication module can display the operating states of each branch and the main road of the power distribution network in real time, so as to monitor the power distribution network and quickly locate the branch with power supply abnormality. The power supply state can be judged directly by observing the display content through the display subunit, and the data delay of the communication network is avoided. After the display subunit is arranged, the key control component and the alarm component can be arranged according to a specific application environment so as to realize manual control and prompt a user in time.
According to the technical scheme, the power supply state of each branch in the household power distribution network can be monitored in real time while safe power distribution is achieved. When the abnormal power supply condition occurs on any branch, the power supply of the branch is cut off, and the information of the abnormal power supply condition is sent to the terminal of the user to prompt the user to check and maintain in time. For example, referring to fig. 4, when a large current short circuit occurs in a household appliance of a certain branch in a household power supply network of a user, an air switch of the branch trips within 100ms to start short-circuit protection; then, the power of the branch circuit and the output voltage of the branch circuit are detected through a metering detection subunit in the intelligent switch unit; the built-in controller in the intelligent switch unit confirms that the power supply of the branch circuit is cut off through the detected power supply power and voltage, namely, the line power is suddenly changed to 0, and the detection data is reported to the server through the communication module or is directly sent to the user terminal, so that a user can know the short circuit fault of the line in time. The application provides a family safety power distribution system still through setting up the main line protection module on the main line, and set up intelligent switch unit and the air switch unit simultaneous action on each branch road, ensures whole distribution network power supply safety. The overcurrent protection function, the overvoltage protection function, the undervoltage protection function and the short-circuit protection function of the main circuit and the branch circuit are realized.
In one technical solution, as shown in fig. 5, the communication module includes a power carrier communication unit, the power carrier communication unit is connected to an interface module, and the interface module establishes communication with each branch circuit, the intelligent switch unit and the terminal. Power Line Communication (PLC) is a technology for transmitting analog or digital signals at high speed by a carrier method using an existing Power Line. When utilizing power line carrier communication unit, among the intelligence switch unit on each branch road, also correspond and be provided with the circuit structure who implements power line carrier communication to transmit the data that detect to power line carrier communication unit through the power transmission line. The power line carrier communication unit arranges and codes the received detection data and sends the detection data to the user terminal through a power transmission line or in a wireless communication mode.
In some embodiments of the present application, a snap-fit assembly interface is used between the functional modules in the system. The specific expression is that a clamping type assembly interface is adopted between the main line protection module and the interface module, so that the output end of the main line protection module is directly clamped at the input end of the interface module; a clamping type assembly interface is adopted between the live wire zero line bus bar and the intelligent switch unit in the interface module, so that each pair of socket bars is directly connected with the input end of the intelligent switch unit; the communication module and the intelligent switch units on each branch adopt a clamping type assembly interface, so that the communication interface of the intelligent switch unit is directly connected with a communication interface board in the communication module. Use joint formula equipment interface, on the one hand can avoid producing data interference and electric quantity transmission loss when using the connecting wire, and on the other hand can also make things convenient for the installation of each module to change and maintain.
Based on above-mentioned family's safety distribution system, this application still provides a family's safety block terminal, refer to fig. 6, the family's safety block terminal that this application provided includes:
the main circuit protection module 2 is connected with a mains supply input end, and the interface device 3 is connected with the main circuit protection module;
the interface device 3 is connected with a plurality of branch switch groups which are connected in parallel, and each branch switch group comprises an intelligent switch 5 and an air switch 6 connected with the intelligent switch in series; the intelligent switch 5 is used for measuring and detecting the power and the voltage of the branch where the intelligent switch is located, and controlling the power supply configuration of the branch where the intelligent switch is located according to the detected power and voltage; the intelligent switch 5 is internally provided with a relay, the relay is used for controlling the on-off of the branch according to detected power supply information and a terminal instruction, and the air switch 6 is used for providing short-circuit protection for the branch; the interface device 3 is internally provided with input interfaces 31 and 32 connected with a main circuit protection module and a plurality of pairs of output socket strips 33 and 34 connected with the intelligent switch 5; the communication device 1 is connected with the intelligent switches 5 in the branches, and the communication device 1 is used for receiving power and voltage signals detected by the intelligent switches 5 and sending the signals to a user terminal.
According to the technical scheme, in the practical use of the household safety power distribution system and the power distribution box, the main line protection module arranged in the system accesses the commercial power input end into a circuit needing power supply, and the power supply of a plurality of branches is realized through the live line and zero line bus bar in the interface module; the intelligent switch units are used for providing power detection and power control for the branches, and the air switches can provide short-circuit protection for the branches; the intelligent switch units on the branches are connected to the communication module, and detected signals are sent to the user terminal through the communication module, so that the user can monitor the power distribution condition in real time.
In the family safety power distribution system that this application provided, set up total way protection module and each branch road switch module, protect total way and branch road respectively, maintain the stability of whole power supply. And through the connected mode of establishing ties between intelligence switch unit and the air switch unit, guarantee that each branch road has good short-circuit protection ability, compensate the short-circuit breaking capacity of intelligence switch module to solve the problem that traditional distribution system security is low.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (7)
1. The utility model provides a family's safety distribution system, is including setting up the block terminal on transmission line, and with communication connection's terminal is established to the block terminal, its characterized in that:
a main line protection module connected with a mains supply input end and an interface module connected with the main line protection module are arranged in the distribution box;
the interface module is connected with a plurality of switch modules which are connected in parallel, and each switch module comprises an intelligent switch unit and an air switch unit which is connected with the intelligent switch unit in series; the air switch units comprise at least 1 zero-fire air switch and at least 1 single-fire air switch; the zero-fire air switch is used for distributing power for the branch in the zero-fire control mode, and the single-fire air switch is used for distributing power for the branch in the single-fire control mode;
the intelligent switch unit is used for measuring and detecting power supply information of the branch where the intelligent switch unit is located, and controlling power supply configuration of the branch where the intelligent switch unit is located according to detected power and voltage; the intelligent switch unit comprises a relay subunit, the relay subunit is used for controlling the on-off of the branch according to the detected power supply information and the instruction of the terminal, and the air switch unit is used for providing short-circuit protection for the branch; the power supply information comprises running power, power supply voltage and the on-off state of a corresponding branch circuit;
the interface module comprises an interface unit and a live wire and zero wire bus bar which is connected with the main road protection module through the interface unit; the live wire and zero wire bus bar is used for connecting the intelligent switch units on the branches; the interface unit is closely connected with the main road protection module and the live and zero line bus bar and is used for reducing the transmission loss of electric energy;
the interface unit comprises two access ends, the two access ends correspond to the output end of the main circuit protection module in position, and when the interface unit is fixed in the distribution box, the two access ends happen to be in contact with the output end of the main circuit protection module;
the interface unit also comprises two output ends, the two output ends respectively correspond to the fire and zero line busbar in position, and the two output ends are just contacted with the fire and zero line busbar after the interface unit is fixed in the distribution box;
the distribution box is also internally provided with a communication module, the communication module is connected with the intelligent switch units in the branches, and the communication module is used for receiving power supply information detected by the intelligent switch units and sending the power supply information to the terminal; the communication module is also used for receiving a control signal of the terminal, sending the control signal to the intelligent switch unit and controlling the power supply configuration of each branch;
the communication module comprises a power carrier communication unit, the power carrier communication unit is connected with the interface module, and the power carrier communication unit is in communication connection with the intelligent switch unit of each branch and the terminal through the interface module;
the power carrier communication unit is used for receiving the power supply information through the power transmission line and sending the power supply information to the terminal through the power transmission line.
2. The system of claim 1, wherein the interface module connects the intelligent switching units on each leg using a two-stage bus bar.
3. The system according to claim 1, wherein the intelligent switch unit is provided with a communication interface for connecting the communication module, an input interface for connecting the interface module and an output interface for connecting the air switch unit;
the intelligent switch unit also comprises a detection metering subunit, a branch protection subunit and a branch control subunit, wherein the detection metering subunit is used for metering and detecting the power supply information of the branch in which the detection metering subunit is positioned; the branch protection subunit is used for providing an overcurrent protection function, an overvoltage protection function and an undervoltage protection function for the branch; and the branch control subunit is used for controlling the on-off of the branch according to the power supply information and sending the power supply information to the communication module through the communication interface.
4. The system according to claim 1, wherein the communication module comprises a communication interface board, and a communication control unit which establishes communication connection with the intelligent switch unit of each branch circuit through the communication interface board;
the communication control unit is internally provided with a communication function subunit and a display subunit, the communication function subunit is used for establishing communication connection with the terminal, and the display subunit is used for displaying the power supply information.
5. The system according to any one of claims 1 to 4, wherein the system further comprises a server, and the switchbox establishes a communication connection with the terminal through the server;
the server is used for receiving the detection signal of the distribution box and sending the detection signal to the terminal; the server is also used for receiving the control signal of the terminal and sending the control signal to the distribution box.
6. The system according to any one of claims 1-4, wherein a snap-fit assembly interface is used between the functional modules in the system.
7. A home safety distribution box, comprising:
the main circuit protection module is connected with a mains supply input end, and the interface device is connected with the main circuit protection module;
the interface device is connected with a plurality of branch switch groups which are connected in parallel, and each branch switch group comprises an intelligent switch and an air switch connected with the intelligent switch in series; the branch switch groups comprise at least 1 zero-fire air switch and at least 1 single-fire air switch; the zero-fire air switch is used for distributing power for the branch in the zero-fire control mode, and the single-fire air switch is used for distributing power for the branch in the single-fire control mode;
the intelligent switch is used for measuring and detecting power supply information of the branch where the intelligent switch is located, and controlling power supply configuration of the branch where the intelligent switch is located according to the power supply information; the intelligent switch is internally provided with a relay, the relay is used for controlling the on-off of the branch according to detected power supply information and a terminal instruction, and the air switch is used for providing short-circuit protection for the branch; the power supply information comprises running power, power supply voltage and the on-off state of a corresponding branch circuit;
the interface device comprises an interface unit and a live wire and zero wire bus bar which is connected with the main road protection module through the interface unit; the live wire and zero wire bus bar is used for connecting the intelligent switch units on the branches; the interface unit is closely connected with the main road protection module and the live and zero line bus bar and is used for reducing the transmission loss of electric energy;
the interface unit comprises two access ends, the two access ends correspond to the output end of the main circuit protection module in position, and when the interface unit is fixed in the distribution box, the two access ends happen to be in contact with the output end of the main circuit protection module;
the interface unit also comprises two output ends, the two output ends respectively correspond to the fire and zero line busbar in position, and the two output ends are just contacted with the fire and zero line busbar after the interface unit is fixed in the distribution box;
the communication device is connected with the intelligent switches in the branches and used for receiving the power supply information and sending the power supply information to the user terminal; the communication device is also used for receiving a control signal of the user terminal, sending the control signal to the intelligent switch and controlling the power supply configuration of each branch;
the communication device comprises a power carrier communication component, the power carrier communication component is connected with the interface device, and the power carrier communication component establishes communication connection with the intelligent switch of each branch and the terminal through the interface device;
the power carrier communication component is used for receiving the power supply information through the power transmission line and sending the power supply information to the terminal through the power transmission line.
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| CN201710968347.9A CN107492955B (en) | 2017-10-18 | 2017-10-18 | Family safety power distribution system and distribution box |
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| CN201710968347.9A CN107492955B (en) | 2017-10-18 | 2017-10-18 | Family safety power distribution system and distribution box |
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| CN107492955B true CN107492955B (en) | 2020-05-22 |
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| CN112311088B (en) * | 2019-07-29 | 2024-03-29 | 南寅 | Electric power and household information monitoring system, method, equipment and medium |
| CN110993424B (en) * | 2019-12-31 | 2021-08-31 | 河北华能源电力设备有限公司 | Integrated flame-retardant leakage air switch device |
| CN111404049B (en) * | 2020-04-27 | 2023-10-20 | 乐清市一锦电子有限公司 | Distribution box system and wiring method thereof |
| CN113765981A (en) * | 2020-11-27 | 2021-12-07 | 河南省汇智丰信息科技有限公司 | Smart home system and smart community system |
| CN112701794B (en) * | 2021-01-25 | 2022-09-16 | 浙江高正电气有限公司 | Low-voltage cabinet remote control system and method |
| CN113991657B (en) * | 2021-11-02 | 2024-02-13 | 珠海格力电器股份有限公司 | Electrical appliance, electricity taking device of electrical appliance and electricity taking control method |
| CN114446681B (en) * | 2021-12-23 | 2023-08-25 | 深圳供电局有限公司 | Air switch safety device and air switch safety equipment |
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