CN218940688U - Circuit mounting structure for electricity taking before meter - Google Patents
Circuit mounting structure for electricity taking before meter Download PDFInfo
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- CN218940688U CN218940688U CN202223153579.4U CN202223153579U CN218940688U CN 218940688 U CN218940688 U CN 218940688U CN 202223153579 U CN202223153579 U CN 202223153579U CN 218940688 U CN218940688 U CN 218940688U
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Abstract
The application relates to a circuit installation structure for electricity taking before a meter, which relates to the technical field of intelligent power grids; the power supply circuit comprises a circuit breaker, a power supply circuit and a control circuit, wherein the circuit breaker is connected to a user load power supply circuit and used for controlling the on-off of the user load power supply circuit; the power taking module before the meter is used for supplying power to a control circuit in the circuit breaker, the input end of the power taking module before the meter is used for being connected to the wire inlet end of the electric energy meter, and the output end of the power taking module before the meter is connected with the control circuit in the circuit breaker and supplies power. According to the method, the power is supplied to the circuit breaker by taking the power before the meter, the condition that the power consumed by the circuit breaker is measured on one side of the user load during the operation of the circuit breaker is prevented, the probability of carrying out power measurement when the user terminal does not use the load is reduced, and the accuracy of the power meter in calculating the actual consumption power consumption of the user load is improved.
Description
Technical Field
The application relates to the technical field of smart power grids, in particular to a circuit installation structure for electricity taking before a meter.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. With the increasing development of smart grids, electric energy meter circuit breakers are also continually innovating. The smart meter is a smart terminal of a smart grid, which is not a conventional electric energy meter. The intelligent ammeter is one of basic equipment for data acquisition of an intelligent power grid (particularly an intelligent power distribution network), bears the tasks of original electric energy data acquisition, metering and transmission, and is a foundation for realizing information integration, analysis optimization and information display.
In the related art, an electric energy meter circuit breaker is usually installed at the rear end of an electric energy meter, and circuit breaker control and networking modules all need to take electricity at the incoming line end (the rear end of the meter) of the circuit breaker, so that the problem that the electric energy consumed by the circuit breaker is metered at the user side under the condition that the user side is not loaded is solved.
Disclosure of Invention
In order to solve the problem that an existing electric energy meter breaker consumes electric energy after a user terminal meter, the application provides a circuit installation structure for taking electricity before a meter.
The application provides a circuit mounting structure for getting electricity before table adopts following technical scheme:
a circuit mounting structure for getting electricity before table, including:
the breaker is connected to the user load power supply loop and used for controlling the on-off of the user load power supply loop;
the power taking module before the meter is used for supplying power to a control circuit in the circuit breaker, the input end of the power taking module before the meter is used for being connected to the wire inlet end of the electric energy meter, and the output end of the power taking module before the meter is connected with the control circuit in the circuit breaker and supplies power.
Through adopting above-mentioned technical scheme, the circuit breaker can get the electric module before the table and acquire the power from electric energy meter inlet wire end is automatic, has ensured that the circuit breaker will user load power supply loop break off or when switching on required action power, has prevented the electric energy measurement that the circuit breaker consumed in the time of the circuit breaker work in user load one side, has prevented the condition that carries out the electric quantity measurement when user end does not practical load, has improved the accuracy that the electric energy meter calculated the actual consumption of user load.
Optionally, the method further comprises the following steps:
the temperature rise detection module is used for collecting temperature information of the electric energy meter in real time when the electric energy meter operates, and a temperature collecting end of the temperature rise detection module is arranged at an input end of the front electricity taking module.
Through adopting above-mentioned technical scheme, when getting electric module input and electric energy meter before with the table and being connected, the collection end of temperature rise detection module will be connected on the electric energy meter along with getting electric module's input together before the table to make things convenient for the staff to install temperature rise detection module, improved the efficiency of whole equipment installation work.
Optionally, the input end of the temperature rise detection module is connected to the output end of the pre-meter power taking module, and the pre-meter power taking module is used for supplying power to the temperature rise detection module.
Through adopting above-mentioned technical scheme, get the electricity module before through the table and can supply power to temperature rise detection module, ensured temperature rise detection module's smooth operation to reduced external power supply's access, improved the succinctness of whole module, improved the utilization ratio of getting the electricity module before the whole equipment is to the table.
Optionally, the method further comprises:
the wireless communication module is used for establishing wireless communication between the circuit breaker and the electric energy meter and comprises a master Bluetooth arranged in the electric energy meter and a slave Bluetooth arranged in the circuit breaker; the wireless communication module is used for sending the temperature information acquired by the temperature rise detection module to the terminal control platform in real time.
By adopting the technical scheme, the master Bluetooth and the slave Bluetooth establish communication in an automatic pairing mode, so that a user can read temperature information of the electric energy meter during operation through the terminal control platform, and the electric energy meter operation condition can be monitored and controlled remotely by the user; the Bluetooth is adopted for remote communication, and has the advantages of low cost, low power consumption, low time delay, flexibility, safety and convenience in installation on required application equipment.
Optionally, the method further comprises the following steps:
and the temperature rise limit protection module is internally provided with a limit temperature preset value, and when the temperature rise detection module acquires that the temperature information of the electric energy meter in operation exceeds the limit temperature preset value, the temperature rise limit protection module sends out an alarm signal.
Through adopting above-mentioned technical scheme, when the operating temperature of electric energy meter is higher than the extreme temperature default that sets for, the circuit breaker receives order cutting off the circuit to the security of distribution system has been protected, safety accident such as conflagration etc. prevents to appear.
Optionally, the pre-meter power taking module further includes:
the rectification unit is used for converting the alternating current signal and outputting a direct current signal, and the output end of the rectification unit is connected with the control end of the circuit breaker and directly supplies power to the circuit breaker;
the input end of the DC/DC module is connected with the output end of the rectifying unit and used for outputting the received direct current signal into a voltage-stabilizing direct current signal, and the output end of the DC/DC module is connected with the temperature rise detection module and used for supplying power to the temperature rise detection module.
Through adopting above-mentioned technical scheme, can turn into DC signal with the alternating current signal of electric energy meter inlet end department through the rectification unit, can turn into the steady voltage direct current signal that is fit for temperature rise detection module with DC/DC module to improve temperature rise detection module and received the stability of power, reduced temperature rise detection module and taken place situations such as malfunction or characteristic degradation when receiving unstable direct current signal.
Optionally, the number of the circuit breakers is at least two, one group of the circuit breakers is connected to the outlet end of the electric energy meter, the other group of the circuit breakers is connected to the inlet end of the electric energy meter, and the two groups of the circuit breakers are located in the same loop and are used for controlling the on-off of a user load power supply loop.
By adopting the technical scheme, when the national power grid background sends a corresponding control instruction to the electric energy meter, the electric energy meter can control the circuit breakers positioned at the outlet end to switch off or switch on, and as the two groups of circuit breakers are positioned on the same circuit, no matter which circuit breaker is switched off, the user load can be disconnected.
Optionally, the circuit breaker is connected with the front power taking module through a wiring cable, the wiring cable adopts a three-core design, the wiring cable comprises a voltage positive port and a data line port, and the voltage positive port and the data line port adopt a common-ground design.
Through adopting above-mentioned technical scheme, voltage positive port and data line port adopt the form of common ground design, have reduced the cable core number of wiring cable, have reduced use cost, have made things convenient for the wiring cable separated time, have improved the simplicity that adopts the plug to peg graft.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the situation that the electric energy consumed by the circuit breaker is measured on one side of a user load when the circuit breaker works is prevented, the probability of electric quantity measurement when the user side does not use the load is reduced, and the accuracy of the electric energy meter in calculating the actual consumption of the user load is improved.
2. When the running temperature of the electric energy meter exceeds the preset limit temperature value, the temperature rise limit control module can control the breaker to conduct opening action, so that a user load power supply loop is cut off, the safety of a power distribution system is protected, and the safety of a user side in use is improved.
Drawings
Fig. 1 is a schematic diagram of the overall connection of embodiment 1 of the present application.
Fig. 2 is a circuit diagram of a pre-table power taking module in embodiment 1 of the present application.
Fig. 3 is a schematic diagram showing the installation of the whole structure of embodiment 1 of the present application.
Reference numerals illustrate: 1. a circuit breaker; 2. a pre-meter power taking module; 21. a rectifying unit; 22. a DC/DC module; 3. a temperature rise detection module; 4. a wireless communication module; 5. and a temperature rise limit protection module.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses a circuit installation structure for electricity taking before a meter. Referring to fig. 1 and 2, the electric energy meter for an external wireless circuit breaker for taking electricity before a meter comprises a circuit breaker 1 for controlling the on-off of a load power supply loop of a user side, a temperature rise detection module 3 for collecting temperature information during the operation of the electric energy meter in real time, and a meter front electricity taking module 2 for supplying electricity to the circuit breaker 1 and the temperature rise detection module 3.
Referring to fig. 1 and 2, an input end of a pre-meter power taking module 2 is connected to an inlet end of an electric energy meter and is used for receiving an ac signal, the pre-meter power taking module 2 mainly comprises a rectifying unit 21, the rectifying unit 21 comprises a current limiting resistor R1, a trimming diode D1 and a filter capacitor C1, and an output end of the pre-meter power taking module 2 converts the received ac signal into a dc signal and outputs the dc signal after being rectified by the rectifying diode D1 and filtered by the filter capacitor C1. The pre-meter power taking module 2 further comprises a DC/DC module 22 connected to the output end of the rectifying unit 21, the output end of the DC/DC module 22 is connected to the temperature rise detection module 3, the DC/DC module 22 is used for adjusting the received direct current signal to a direct current voltage suitable for the temperature rise detection module 3, then outputting the direct current signal to be a voltage-stabilizing direct current signal, and supplying power to the temperature rise detection module 3.
Referring to fig. 2 and 3, the temperature rise detection module 3, the pre-meter power taking module 2 and the DC/DC module 22 are integrated in the pre-meter power taking intelligent connector, the electric energy meter is installed on the pre-meter power taking intelligent connector in a quick plugging manner, and each plug of the pre-meter power taking intelligent connector is provided with a temperature sensor, and the operating temperature rise condition of the electric energy meter is detected in real time through the temperature sensor.
Referring to fig. 2 and 3, the output end of the rectifying unit 21 and the output end of the temperature rise detection module 3 are both connected to a control circuit inside the circuit breaker 1, and the pre-meter power taking module 2 and the temperature rise detection module 3 are both connected to the circuit breaker 1 through a connection cable. In this embodiment, the wiring cable adopts the form of three-core design, mainly includes voltage positive port, data line port to and the ground connection port, and the output of rectifying element 21 is through wiring cable to the circuit breaker 1 power supply, and temperature rise detection module 3 is through the data line port in the wiring cable with the temperature information real time transmission who gathers to in the circuit breaker 1. The voltage positive port and the data line port are designed in a common ground way, so that the functions of electricity taking and data transmission can be realized between the pre-meter electricity taking module 2 and the circuit breaker 1 through one data line, the number of wiring cable cores is reduced, and the use cost is saved.
Referring to fig. 1, a wireless communication module 4 is further connected between the electric energy meter and the circuit breaker 1 by signals, the wireless communication module 4 comprises a master bluetooth installed in the electric energy meter and a slave bluetooth installed in the circuit breaker 1, the slave bluetooth is used for pairing with the master bluetooth, and the electric energy meter establishes communication in an automatic pairing mode through the master bluetooth and the slave bluetooth. The electric energy meter reads the temperature information received by the circuit breaker 1 in real time through the main Bluetooth, the electric energy meter can transmit the received temperature information to a terminal control platform connected with a main Bluetooth signal in real time, and the electric energy meter can further upload the received data information to the background of the national power grid after the received data information is summarized.
Referring to fig. 1, the electric energy meter further comprises a temperature rise limit protection module 5, wherein a limit temperature preset value is set in advance by a worker in the temperature rise limit protection module 5, when the running temperature of the electric energy meter is higher than the set limit temperature preset value, the temperature rise limit protection module 5 gives an alarm, and the circuit breaker 1 receives a command to cut off a circuit, so that the safety of the power distribution system is protected, and safety accidents such as fire disaster are prevented.
Referring to fig. 1 and 3, the number of circuit breakers 1 may be increased or decreased according to actual situations, in this embodiment, the number of circuit breakers 1 is two, and a main circuit of one group of circuit breakers 1 is connected to an outgoing line end of an electric energy meter, a main circuit of another group of circuit breakers 1 is connected to an incoming line end of the electric energy meter, and the two groups of circuit breakers 1 are located in the same circuit and are used for controlling on-off of a user load power supply circuit. After the background of the national power grid sends a corresponding control instruction to the electric energy meter, the electric energy meter can control the circuit breaker 1 positioned at the outlet end to switch on or switch off, so that the control of the on-off of a user load power supply loop is realized, and as the two groups of circuit breakers 1 are positioned on the same loop, no matter which circuit breaker 1 is switched off, the user load can be disconnected.
The implementation principle of the circuit installation structure for electricity taking before the meter is as follows: when the electric energy meter wire outlet end is required to be connected with the circuit breaker 1, the front-meter electricity taking intelligent connector is connected to the electric energy meter wire inlet end, and the control end of the circuit breaker 1 is connected to the front-meter electricity taking connector wire outlet end through a wiring cable, so that the electric energy meter can supply power to the circuit breaker 1 through the front-meter electricity taking intelligent connector, hidden danger that electric energy consumed by the circuit breaker 1 is measured on one side of a user end when the user end does not use a load is prevented, and accuracy of electric energy measurement consumed by the user load by the electric energy meter is improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. A circuit mounting structure for getting electricity before table, its characterized in that includes:
the circuit breaker (1) is connected to the user load power supply loop and used for controlling the on-off of the user load power supply loop;
the meter front electricity taking module (2) is used for supplying power to a control circuit inside the circuit breaker (1), the input end of the meter front electricity taking module (2) is used for being connected to the wire inlet end of the electric energy meter, and the output end of the meter front electricity taking module (2) is connected with an internal control loop of the circuit breaker (1) and supplies power.
2. The circuit mounting structure for pre-meter power take-off of claim 1, further comprising:
the temperature rise detection module (3) is used for collecting temperature information of the electric energy meter in real time when the electric energy meter runs, and the temperature collection end of the temperature rise detection module (3) is arranged at the input end of the electricity taking module (2) before the meter.
3. A circuit mounting structure for pre-meter power take-off as defined in claim 2, wherein: the input end of the temperature rise detection module (3) is connected to the output end of the pre-meter power taking module (2), and the pre-meter power taking module (2) is used for supplying power to the temperature rise detection module (3).
4. The circuit mounting structure for a pre-meter power take-off of claim 2, further comprising:
the wireless communication module (4) is used for establishing wireless communication between the circuit breaker (1) and the electric energy meter, and the wireless communication module (4) comprises a master Bluetooth arranged in the electric energy meter and a slave Bluetooth arranged in the circuit breaker (1); the wireless communication module (4) is used for sending the temperature information acquired by the temperature rise detection module (3) to the terminal control platform in real time.
5. The circuit mounting structure for pre-meter power take-off of claim 4, further comprising:
the temperature rise limit protection module (5) is internally provided with a limit temperature preset value, when the temperature rise detection module (3) collects temperature information of the electric energy meter during operation to exceed the limit temperature preset value, the temperature rise limit protection module (5) sends out an alarm signal.
6. A line mounting structure for a pre-meter power take-off according to claim 2, wherein the pre-meter power take-off module (2) further comprises:
the rectification unit (21) is used for converting the alternating current signal and outputting a direct current signal, and the output end of the rectification unit (21) is connected with the control end of the circuit breaker (1) and directly supplies power to the circuit breaker (1);
the DC/DC module (22), DC/DC module (22) input connect in rectification unit (21) output to be used for with the direct current signal output of receiving for steady voltage direct current signal, DC/DC module (22) output connect in temperature rise detection module (3) to be used for supplying power for temperature rise detection module (3).
7. The circuit mounting structure for pre-meter power take-off of claim 1, wherein: the number of the circuit breakers (1) is at least two, one group of the circuit breakers (1) is connected to the outlet end of the electric energy meter, the other group of the circuit breakers (1) is connected to the inlet end of the electric energy meter, and the two groups of the circuit breakers (1) are positioned in the same loop and are used for controlling the on-off of a user load power supply loop.
8. The circuit mounting structure for pre-meter power take-off of claim 1, wherein: the circuit breaker (1) is connected with the pre-meter power taking module (2) through a wiring cable, the wiring cable adopts a three-core design, the wiring cable comprises a voltage positive port and a data line port, and the voltage positive port and the data line port adopt a common-ground design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223153579.4U CN218940688U (en) | 2022-11-25 | 2022-11-25 | Circuit mounting structure for electricity taking before meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223153579.4U CN218940688U (en) | 2022-11-25 | 2022-11-25 | Circuit mounting structure for electricity taking before meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218940688U true CN218940688U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223153579.4U Active CN218940688U (en) | 2022-11-25 | 2022-11-25 | Circuit mounting structure for electricity taking before meter |
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| Country | Link |
|---|---|
| CN (1) | CN218940688U (en) |
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2022
- 2022-11-25 CN CN202223153579.4U patent/CN218940688U/en active Active
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