CN217820582U - Acquisition terminal and system of household intelligent distribution box - Google Patents
Acquisition terminal and system of household intelligent distribution box Download PDFInfo
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- CN217820582U CN217820582U CN202221061438.7U CN202221061438U CN217820582U CN 217820582 U CN217820582 U CN 217820582U CN 202221061438 U CN202221061438 U CN 202221061438U CN 217820582 U CN217820582 U CN 217820582U
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Abstract
The utility model relates to a technical field of block terminal especially relates to a collection terminal and system of intelligent distribution box of family, and collection terminal includes electric energy measurement chip, current transformer, voltage transformer and zero sequence current transformer, and electric energy measurement chip is including being used for converting voltage signal and current signal into the adc of current value, magnitude of voltage and leakage current value. Under the condition of electric shock or electric leakage, the fault electric quantity enables an iron ring of the zero sequence current transformer to generate magnetic flux, the secondary side of the zero sequence current transformer generates induced voltage, and a voltage signal is accessed to an electric energy metering chip to perform analog-to-digital conversion to calculate a leakage current value; after being sampled by a current transformer, the current enters an electric energy metering chip to be subjected to analog-to-digital conversion to calculate a current value; after the voltage is sampled by a voltage transformer, the voltage enters an electric energy metering chip to be subjected to analog-to-digital conversion to calculate a voltage value; based on the electric energy metering chip, the electric quantity metering can be realized, the guide rail type electric energy meter does not need to be installed, and the effect of convenient operation is achieved.
Description
Technical Field
The application relates to the technical field of distribution boxes, in particular to a collection terminal and a system of a household intelligent distribution box.
Background
The household distribution box is also called as a household distribution box, is a small power supply device specially designed for common families, is a guarantee for household power utilization safety, and exists in families in a non-negligible way.
A power supply main brake unit, a leakage protector unit and a fuse unit are arranged in an existing household distribution box, wherein the power supply main brake unit controls a household main power supply, and an AC 220V phase line and a zero line of a household can be cut off simultaneously by pulling down the power supply main brake. And the leakage protector unit is used for rapidly cutting off the power supply when the indoor electric wire or the electric appliance leaks electricity and people get an electric shock. The fuse unit comprises two fuses for dividing a power supply into two paths to supply power to the indoor, wherein one path is used for supplying power for lighting of each lamp in the indoor, and the other path is used for supplying power for household appliances through each socket; when overcurrent or short-circuit fault occurs, the corresponding fuse is automatically fused.
The current function of family's block terminal in order to realize the measurement electric quantity needs additionally to install guide rail formula electric energy meter in the family's block terminal, and its device is various, installs loaded down with trivial details.
Disclosure of Invention
In order to reach the effect of being convenient for install when realizing the electric quantity measurement, this application provides a family's intelligent power distribution box's collection terminal and system.
First aspect, the application provides a collection terminal of intelligent power distribution box of family, adopts following technical scheme:
an acquisition terminal of a household intelligent distribution box comprises an electric energy metering chip, a current transformer for detecting current in the distribution box, a voltage transformer for detecting voltage in the distribution box and a zero sequence current transformer for detecting leakage current in the distribution box, wherein the electric energy metering chip is respectively connected with the current transformer, the voltage transformer and the zero sequence current transformer and is used for acquiring voltage signals and current signals in the distribution box;
the electric energy metering chip comprises an AD converter, and the AD converter is used for converting a voltage signal and a current signal in the distribution box into a current value, a voltage value and a leakage current value.
By adopting the technical scheme, under the condition of electric shock or electric leakage, the fault electric quantity enables the iron ring of the zero sequence current transformer to generate magnetic flux, the secondary side of the zero sequence current transformer generates induced voltage, and a voltage signal is accessed to an electric energy metering chip to carry out AD conversion to calculate the leakage current value; after being sampled by a current transformer, the current enters an electric energy metering chip to be subjected to AD conversion to calculate a current value; after the voltage is sampled by a voltage transformer, the voltage enters an electric energy metering chip to be subjected to AD conversion to calculate a voltage value;
need not additionally to install guide tracked electric energy meter, can realize the electric quantity measurement through the electric energy measurement chip, reach the effect of the operation of being convenient for simultaneously.
Optionally, the electric energy metering device further comprises a single chip microcomputer, wherein the electric energy metering chip is connected with the single chip microcomputer, and the single chip microcomputer is used for acquiring a current value, a voltage value and a leakage current value in the distribution box;
the single chip microcomputer is connected with an alarm and is used for giving an alarm when the current value, the voltage value and the leakage current value in the distribution box are larger than corresponding set values.
Through adopting above-mentioned technical scheme, report to the police when current value, magnitude of voltage and leakage current value in the block terminal are greater than the setting value that corresponds, help the staff in time to handle, are convenient for improve the security of family's intelligent power distribution box in the use.
Optionally, the singlechip is connected with a liquid crystal display, and the liquid crystal display is used for displaying current value, voltage value, leakage current value and alarm state in the distribution box.
Optionally, the system further comprises a plurality of touch keys, and the plurality of touch keys are respectively connected with corresponding ports of the liquid crystal display screen and used for inquiring the electric energy parameters.
Optionally, the single chip microcomputer is connected with a memory and used for storing a current value, a voltage value and a leakage current value in the distribution box.
By adopting the technical scheme, the current value, the voltage value and the leakage current value in the distribution box are stored through the memory, so that the historical data can be checked conveniently in the process of overhauling or maintaining the distribution box.
The second aspect, the application provides a family's intelligent distribution box system adopts following technical scheme:
the utility model provides a family's intelligent power distribution box system based on collection terminal of family's intelligent power distribution box, includes collection terminal, router and cloud ware, collection terminal passes through MQTT agreement and is connected with the router, the router is connected with the cloud ware.
By adopting the technical scheme, after the acquisition terminal acquires the current value, the voltage value and the leakage current value in the distribution box, the electric energy data value is sent and stored to the cloud server through the router, so that a user can conveniently log in the cloud server for inquiry.
Optionally, the cloud server is connected with an intelligent terminal.
By adopting the technical scheme, a user can inquire the electric energy data value stored in the cloud server through the intelligent terminal, and the effect of convenient operation is achieved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. under the condition of electric shock or electric leakage, the fault electric quantity enables an iron ring of the zero sequence current transformer to generate magnetic flux, the secondary side of the zero sequence current transformer generates induced voltage, and a voltage signal is accessed to an electric energy metering chip to carry out AD conversion to calculate a leakage current value; after being sampled by a current transformer, the current enters an electric energy metering chip to be subjected to AD conversion to calculate a current value; after the voltage is sampled by a voltage transformer, the voltage enters an electric energy metering chip to be subjected to AD conversion to calculate a voltage value; need not additionally to install guide tracked electric energy meter, can realize the electric quantity measurement through the electric energy measurement chip, reach the effect of the operation of being convenient for simultaneously.
2. After acquiring a current value, a voltage value and a leakage current value in the distribution box, the acquisition terminal sends and stores an electric energy data value to the cloud server through the router, so that a user can conveniently log in the cloud server for inquiry; in addition, the cloud server is connected with the intelligent terminal, and a user can inquire the electric energy data value stored in the cloud server through the intelligent terminal, so that the effect of convenience in operation is achieved.
Drawings
Fig. 1 is a block diagram of an acquisition terminal of a home intelligent distribution box according to an embodiment of the present disclosure.
Fig. 2 is a structural block diagram of an electric energy metering chip used in an acquisition terminal of a home intelligent distribution box shown in one embodiment of the present application.
Fig. 3 is a structural diagram of an acquisition terminal system of a home smart distribution box according to an embodiment of the present application.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.
The embodiment of the application discloses collection terminal of intelligent distribution box of family, as shown in fig. 1 and fig. 2, including electric energy measurement chip, current transformer, voltage transformer and zero sequence current transformer, and electric energy measurement chip is connected with current transformer, voltage transformer and zero sequence current transformer respectively for acquire voltage signal and current signal in the block terminal. The electric energy metering chip comprises an analog-to-digital converter, and the analog-to-digital converter is used for converting a voltage signal and a current signal in the distribution box into a current value, a voltage value and a leakage current value.
Specifically, a live wire and a zero line of the distribution box penetrate into the zero sequence current transformer, when electric shock or electric leakage occurs, the vector sum is not zero, fault electric quantity enables an iron ring of the zero sequence current transformer to generate magnetic flux, the secondary side of the zero sequence current transformer generates an induced voltage signal, the voltage signal is connected into an electric energy metering chip, and an analog-to-digital converter is used for AD conversion to calculate a leakage current value.
The current in the distribution box is sampled by the current transformer to generate a current signal, the current signal is connected to the electric energy metering chip, and the current value is calculated by AD conversion by the aid of the analog-to-digital converter.
The voltage in the distribution box passes through the divider resistor and is sampled by the voltage transformer to generate a voltage signal, the voltage signal is connected to the electric energy metering chip, and the analog-to-digital converter is used for AD conversion to calculate a real-time voltage value.
The electric energy metering chip calculates the power, the electric energy and the residual current of the distribution box according to the voltage value and the current value, and is convenient for knowing various performance parameters of the distribution box in real time.
In addition, as shown in fig. 1, the acquisition terminal further comprises a single chip microcomputer connected with the electric energy metering chip, and the electric energy metering chip sends the calculated leakage current value, current value and voltage value to the single chip microcomputer. The singlechip is connected with an alarm, in the embodiment, the alarm is set to be a buzzer and used for giving an alarm when the current value, the voltage value and the leakage current value in the distribution box are larger than corresponding set values.
Specifically, the set value range corresponding to the leakage current value in the distribution box is 5-100ma, wherein the set value can be set to 30ma; the range of the set value corresponding to the current in the distribution box can be no more than 1.5 times of the rated current, and the set value can be set to 69A under the condition that the rated current is 60A; the voltage in the distribution box corresponds to a set value range of 230-330V, wherein the set value can be set to 275V. The single chip microcomputer compares the leakage current value, the current value and the voltage value with corresponding set values respectively, controls the alarm to give an alarm when the leakage current value, the current value and the voltage value are larger than the set values, and performs tripping operation to realize the functions of leakage protection, overcurrent protection, overvoltage protection and the like.
In addition, when the voltage value in the distribution box is smaller than a preset value, the singlechip controls the buzzer to give an alarm so as to realize the under-voltage protection function. Wherein, the preset value range is set to be 50-200V, and the preset value can be set to be 160V.
After the distribution box breaks down to cause tripping, detecting fault removal and automatically reclosing by leakage current after the fault removal lasts for 30 seconds, namely when the leakage current value, the current value and the voltage value of the distribution box last for 30 seconds within a normal range, namely automatically reclosing, closing for 3 times, stopping closing if the leakage current value, the current value and the voltage value of the distribution box are not closed, enabling any closing to be successful for 10 seconds, automatically resetting, and starting from the first time.
As shown in fig. 1, the singlechip is also connected with a liquid crystal display and a plurality of touch keys, and the liquid crystal display is used for displaying current value, voltage value, leakage current value and alarm state in the distribution box. The touch keys are respectively connected with corresponding ports of the liquid crystal display screen, and the liquid crystal display screen is controlled to perform page turning actions to inquire various electric energy parameters through key operation.
In addition, the singlechip is also connected with a memory and used for storing the current value, the voltage value and the leakage current value in the distribution box.
Based on above-mentioned intelligent distribution box's of family collection terminal, this application embodiment still discloses an intelligent distribution box system of family.
As shown in fig. 3, the household intelligent distribution box system comprises an acquisition terminal, a router and a cloud server, wherein the acquisition terminal is connected with the router through an MQTT protocol, the router is connected with the cloud server, and the cloud server is connected with an intelligent terminal.
After acquiring a current value, a voltage value and a leakage current value in the distribution box, the acquisition terminal sends and stores an electric energy data value to the cloud server through the router, so that a user can conveniently log in the cloud server for inquiry; in addition, the cloud server is connected with the intelligent terminal, and a user can inquire the electric energy data value stored in the cloud server through the intelligent terminal, so that the effect of convenience in operation is achieved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides a collection terminal of intelligent power distribution of family which characterized in that: the system comprises an electric energy metering chip, a current transformer for detecting current in a distribution box, a voltage transformer for detecting voltage in the distribution box and a zero sequence current transformer for detecting leakage current in the distribution box, wherein the electric energy metering chip is respectively connected with the current transformer, the voltage transformer and the zero sequence current transformer and is used for acquiring voltage signals and current signals in the distribution box;
the electric energy metering chip comprises an AD converter, and the AD converter is used for converting a voltage signal and a current signal in the distribution box into a current value, a voltage value and a leakage current value.
2. The collection terminal of the intelligent household distribution box of claim 1, wherein: the electric energy metering chip is connected with the single chip microcomputer, and the single chip microcomputer is used for acquiring a current value, a voltage value and a leakage current value in the distribution box;
the single chip microcomputer is connected with an alarm and is used for giving an alarm when the current value, the voltage value and the leakage current value in the distribution box are larger than corresponding set values.
3. The collection terminal of the intelligent household distribution box of claim 2, wherein: the single chip microcomputer is connected with a liquid crystal display screen, and the liquid crystal display screen is used for displaying a current value, a voltage value, a leakage current value and an alarm state in the distribution box.
4. The collection terminal of the intelligent household distribution box of claim 3, wherein: the electric energy parameter inquiry device further comprises a plurality of touch keys, wherein the touch keys are respectively connected with corresponding ports of the liquid crystal display screen and used for inquiring the electric energy parameters.
5. The collection terminal of the intelligent household distribution box of claim 2, wherein: the single chip microcomputer is connected with a memory and used for storing current values, voltage values and leakage current values in the distribution box.
6. A family intelligent distribution box system based on the collection terminal of the family intelligent distribution box of any one of claims 1-5, characterized in that: the system comprises a collection terminal, a router and a cloud server, wherein the collection terminal is connected with the router through an MQTT protocol, and the router is connected with the cloud server.
7. The system of claim 6, wherein: the cloud server is connected with an intelligent terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221061438.7U CN217820582U (en) | 2022-05-05 | 2022-05-05 | Acquisition terminal and system of household intelligent distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221061438.7U CN217820582U (en) | 2022-05-05 | 2022-05-05 | Acquisition terminal and system of household intelligent distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217820582U true CN217820582U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221061438.7U Active CN217820582U (en) | 2022-05-05 | 2022-05-05 | Acquisition terminal and system of household intelligent distribution box |
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| Country | Link |
|---|---|
| CN (1) | CN217820582U (en) |
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2022
- 2022-05-05 CN CN202221061438.7U patent/CN217820582U/en active Active
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