CN221056535U - Take leakage alarm's low voltage power metering box - Google Patents
Take leakage alarm's low voltage power metering box Download PDFInfo
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- CN221056535U CN221056535U CN202322746412.7U CN202322746412U CN221056535U CN 221056535 U CN221056535 U CN 221056535U CN 202322746412 U CN202322746412 U CN 202322746412U CN 221056535 U CN221056535 U CN 221056535U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
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Abstract
The utility model relates to the technical field of low-voltage power metering boxes, in particular to a low-voltage power metering box with a leakage alarm, which can realize accurate metering of electric energy, provide various protection for temperature, leakage and overload by integrating various functional modules, simultaneously realize mutual coordination of a contactor module and a leakage protector, trigger an alarm signal and rapidly cut off a circuit when a leakage accident is detected, provide double guarantee for the safety of a power system, further have a remote alarm function, send alarm information such as leakage, overload and the like to a remote monitoring center through a wireless communication interface, also receive instructions from the remote monitoring center, realize remote operation and realize intelligent remote monitoring and management.
Description
Technical Field
The utility model relates to the technical field of low-voltage power metering boxes, in particular to a low-voltage power metering box with an electric leakage alarm function.
Background
The low-voltage power metering box is generally installed at a user side in a power supply system for measuring and monitoring power consumption of the user.
When the leakage current occurs in the low-voltage power metering box, the current can possibly reach the ground through a human body or other objects, electric shock danger is caused, meanwhile, the leakage current can possibly cause abnormal increase of the current in the circuit, so that the circuit is overloaded, the wires are overheated, fire disaster is caused when the leakage current cannot be detected and cut off in time, electric energy leakage can be caused for electric power users, and the electricity consumption cost of the users is increased.
The electric leakage condition in the circuit can be detected by the electric power metering box with the electric leakage alarming function, so that a user is reminded of paying attention to safety, and the electricity utilization safety of the whole electric power system is improved; some low-voltage power metering boxes in the current market are also provided with leakage detection devices, but the functions are simpler, and real-time monitoring and fault alarming of the low-voltage power metering box cannot be realized through a remote monitoring system, so that the intelligent low-voltage power metering box capable of realizing the leakage alarming function and simultaneously realizing the multifunctional integration is very necessary.
Disclosure of utility model
In order to solve the problem of intelligent leakage alarm of the low-voltage power metering box, the utility model provides the low-voltage power metering box with the leakage alarm.
The technical scheme of the utility model is as follows:
The low-voltage power metering box with the leakage alarm comprises a microprocessor, and further comprises an electric energy metering module, a data storage module, a remote communication module, an intelligent power module, a display module, a leakage detection module, a leakage protection module, a contactor module and an alarm module which are respectively and electrically connected with the microprocessor;
The leakage detection module comprises a leakage sensor and a threshold judgment unit which are respectively and electrically connected with the microprocessor;
the low-voltage power metering box further comprises a temperature protection module and an overload protection module which are respectively and electrically connected with the microprocessor.
Specifically, the leakage protection module comprises a leakage protector, an iron core winding detection coil and an output interface, wherein the leakage protector is connected with the iron core winding detection coil and then is electrically connected with the microprocessor through the output interface, and the type of the output interface is RS485 interface.
Specifically, the contactor module comprises a contact unit, an electromagnetic coil unit and a spring unit, wherein the contact unit is respectively and electrically connected with the electromagnetic coil unit and the spring unit.
Further, the electric energy metering module comprises an electric energy meter, a current transformer and a voltage transformer, and is electrically connected with the electric energy meter respectively.
Preferably, the alarm module is provided with an LED lamp and a buzzer, and the LED lamp and the buzzer are respectively and electrically connected with the microprocessor.
Preferably, the remote communication module is configured with an ethernet interface, an RS485 interface and a wireless communication interface.
Preferably, the battery type of the intelligent power module is a lead-acid storage battery.
Specifically, the overload protection module includes a current transformer and a fuse electrically connected.
Specifically, the temperature protection module comprises a temperature sensor and a relay, and the temperature sensor is electrically connected with the relay.
The utility model has the beneficial effects that: the utility model relates to a low-voltage power metering box with a leakage alarm, which is characterized in that an electric energy metering module, a leakage detection module, a leakage protection module, a temperature protection module and an overload protection module are built in to collect and measure the current and the voltage of a circuit in real time to realize accurate metering of electric energy, and meanwhile, the protection of temperature, leakage and overload is provided to realize multifunctional integration;
The contactor module and the leakage protector are matched with each other to provide double guarantee, when a leakage accident is detected, an alarm signal can be triggered, a circuit is rapidly cut off, and the safe operation of the system under the condition of leakage of the low-voltage power metering box is ensured;
The intelligent remote monitoring system has the remote alarm function, sends alarm information such as electric leakage, overload and the like to a remote monitoring center through a wireless communication interface, receives instructions from the remote monitoring center and realizes remote operation, thereby realizing intelligent remote monitoring and management.
Drawings
In the drawings:
Fig. 1 is a schematic diagram of a frame structure of each module of a low-voltage power metering box with leakage alarm in an embodiment.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.
Examples
The embodiment provides a low-voltage power metering box with a leakage alarm, which is shown in fig. 1, and comprises a microprocessor, an electric energy metering module, a data storage module, a remote communication module, an intelligent power module, a display module, a leakage detection module, a leakage protection module, a contactor module and an alarm module, wherein the electric energy metering module, the data storage module, the remote communication module, the intelligent power module, the display module, the leakage detection module, the leakage protection module, the contactor module and the alarm module are respectively and electrically connected with the microprocessor;
The electric energy metering module is a core module of the low-voltage power metering box and is used for collecting and measuring voltage and current number parameters in the power transmission line and recording electric energy data and electric energy service conditions; the electric energy metering module comprises an electric energy meter, a current transformer and a voltage transformer which are electrically connected with the electric energy meter, wherein the current transformer is used for collecting current signals in a circuit and converting the current in the circuit into small signals which can be read by the electric energy meter, and the converted small current signals are transmitted to the electric energy meter for measurement; the voltage transformer is used for collecting voltage signals in the circuit, and transmitting the voltage signals to the electric energy meter for measurement after the voltage in the circuit is reduced to a range capable of being safely measured.
The leakage detection module is used for monitoring the leakage condition in the circuit in real time and finding the leakage problem in the circuit in time, so that the safety of electricity consumption and the reliability of equipment are improved. Specifically, the leakage detection module comprises a leakage sensor and a threshold judgment unit which are respectively and electrically connected with the micro-processing unit; the threshold judging unit is used for detecting and judging whether the leakage current exceeds a set threshold, and a user can set a proper threshold according to actual conditions; the leakage sensor scans and senses the current in the circuit in a non-contact mode, and when the detected leakage current reaches a set threshold value, abnormal leakage current data are transmitted to the microprocessor, so that a leakage protection device in the leakage protection module is triggered.
The leakage protection module is used for detecting and cutting off leakage current and comprises a leakage protector, an iron core winding detection coil and an output interface, wherein the leakage protector is connected with the iron core winding detection coil and then is electrically connected with the microprocessor through the output interface, the type of the output interface is an RS-485 interface, and the leakage protection module can carry out bidirectional communication with the microprocessor module through the RS-485 interface. The iron core winding detection coil detects the electric leakage condition through the current change in the induction circuit, and when electric leakage occurs and exceeds a threshold value, the electric leakage protector can rapidly cut off the circuit to prevent electric shock danger and fire hazard caused by electric leakage.
The contactor module is used for controlling and cutting off a circuit, isolating a leakage area from other circuits, avoiding that the whole power system is influenced by the leakage, and reducing the risk of fault spreading. The contactor module comprises a contact unit, an electromagnetic coil unit and a spring unit, wherein the contact unit is respectively and electrically connected with the electromagnetic coil unit and the spring unit; the contact unit is a core part of the contactor module and is used for controlling the switch of the circuit, the electromagnetic coil unit is used for receiving a control signal and controlling the attraction and the closing of the contactor through an electromagnetic field, and the spring unit is used for providing external force support for the contactor unit.
In this embodiment, the contactor module and the leakage protector cooperate with each other to ensure safe operation of the system in the event of leakage of the low-voltage power metering box.
The alarm module is used for monitoring the running state and abnormal condition of the power system and sending alarm signals to related personnel so as to take measures in time. The alarm module is provided with an LED lamp and a buzzer which are respectively and electrically connected with the microprocessor; when the leakage detection module in the low-voltage power metering box detects that the leakage current in the circuit reaches a set threshold value, an alarm signal is triggered when the leakage protection is triggered, an LED lamp flashes, and a buzzer sounds an alarm to remind a user of a leakage event; the leakage alarm module also has the functions of data recording and storage, and records the occurrence event, duration time, current value and other information of the leakage event so as to facilitate subsequent analysis and fault investigation; meanwhile, in the embodiment, the electric leakage alarm module further has a remote alarm function, alarm information can be directly sent to other upper systems through the wireless communication interface, and even if a user is not on site, the electric leakage alarm information can be received.
The remote communication module is used for reading and monitoring the electric energy data, and carrying out two-way communication with the remote monitoring center through the communication interface so as to realize remote monitoring and management. The remote communication module is provided with an Ethernet interface, an RS485 interface and a wireless communication interface, can send fault information such as working state, electric leakage and overload of the low-voltage power metering box, and can also receive instructions from a remote monitoring center to realize remote operation.
The data storage module is used for storing and storing the measurement data and storing the electric energy data in the internal memory.
The intelligent power supply module provides reliable power support for the whole system of the low-voltage power metering box, and the battery type is a lead-acid storage battery; meanwhile, the intelligent power supply module is also provided with a battery backup function, and when the main power supply is interrupted, the intelligent power supply module is automatically switched to a standby battery power supply mode to ensure continuous power supply.
The display module is configured with an LCD display screen for displaying the use condition and alarm information of the electric energy in real time, and can also set parameters, and the functions and the parameters of the metering module are configured, inquired and controlled through a visual operation interface.
The low-voltage power metering box further comprises a temperature protection module and an overload protection module which are respectively and electrically connected with the microprocessor.
The overload protection module is used for protecting the low-voltage power metering box from damage when overload and short circuit abnormal conditions occur to the circuit. The overload protection module comprises a current transformer and a fuse which are electrically connected; specifically, the current transformer is used for detecting current change in the circuit of the low-voltage power metering box, and sending out a signal when the current exceeds a set threshold value, and the fuse cuts off the circuit at the moment so as to prevent equipment damage caused by excessive current passing through the circuit and improve the reliability of the equipment.
The temperature protection module is used for monitoring the real-time temperature inside the low-voltage power metering box and providing over-temperature protection. The device comprises a temperature sensor and a relay, wherein the temperature sensor is electrically connected with the relay; the temperature sensor monitors the temperature inside the low-voltage power metering box in real time, an alarm signal can be triggered when the temperature is too high, and at the moment, the relay cuts off a circuit, so that potential safety hazards caused by equipment overheating are prevented, and the safety of the whole low-voltage power metering box system is improved.
Claims (10)
1. The low-voltage power metering box with the leakage alarm is characterized by comprising a microprocessor, and further comprising an electric energy metering module, a data storage module, a remote communication module, an intelligent power module, a display module, a leakage detection module, a leakage protection module, a contactor module and an alarm module which are respectively and electrically connected with the microprocessor;
The leakage detection module comprises a leakage sensor and a threshold judgment unit which are respectively and electrically connected with the microprocessor;
the low-voltage power metering box further comprises a temperature protection module and an overload protection module which are respectively and electrically connected with the microprocessor.
2. The low-voltage power metering box with leakage alarm according to claim 1, wherein the leakage protection module comprises a leakage protector, an iron core winding detection coil and an output interface, and the leakage protector is electrically connected with the microprocessor through the output interface after being connected with the iron core winding detection coil.
3. The low-voltage power metering box with leakage alarm according to claim 2, wherein the output interface is an RS485 interface.
4. The low-voltage power metering box with leakage alarm according to claim 1, wherein the contactor module comprises a contact unit, an electromagnetic coil unit and a spring unit, and the contact unit is electrically connected with the electromagnetic coil unit and the spring unit respectively.
5. The low-voltage power metering box with leakage alarm according to claim 1, wherein the electric energy metering module comprises an electric energy meter, and further comprises a current transformer and a voltage transformer which are respectively and electrically connected with the electric energy meter.
6. The low-voltage power metering box with leakage alarm according to claim 1, wherein the alarm module is provided with an LED lamp and a buzzer, and the LED lamp and the buzzer are respectively and electrically connected with the microprocessor.
7. The low-voltage power metering box with leakage alarm according to claim 1, wherein the remote communication module is configured with an ethernet interface, an RS485 interface and a wireless communication interface.
8. The low-voltage power metering box with leakage alarm according to claim 1, wherein the battery type of the intelligent power module is a lead-acid storage battery.
9. The low voltage power metering box with leakage alarm according to claim 1, wherein the overload protection module comprises a current transformer and a fuse which are electrically connected.
10. The low-voltage power metering box with leakage alarm according to claim 1, wherein the temperature protection module comprises a temperature sensor and a relay, and the temperature sensor is electrically connected with the relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322746412.7U CN221056535U (en) | 2023-10-13 | 2023-10-13 | Take leakage alarm's low voltage power metering box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322746412.7U CN221056535U (en) | 2023-10-13 | 2023-10-13 | Take leakage alarm's low voltage power metering box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221056535U true CN221056535U (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322746412.7U Active CN221056535U (en) | 2023-10-13 | 2023-10-13 | Take leakage alarm's low voltage power metering box |
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| Country | Link |
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| CN (1) | CN221056535U (en) |
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2023
- 2023-10-13 CN CN202322746412.7U patent/CN221056535U/en active Active
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