CN220156287U - Metering and broadband carrier modularized circuit breaker - Google Patents

Abstract

The utility model provides a metering and broadband carrier modularized circuit breaker, which relates to the technical field of circuit breakers and comprises a circuit breaker main body, a first main MCU, a temperature sensing assembly, a first DCDC chip, a tripping circuit, a current transformer, a measuring module and a switching power supply, wherein the temperature sensor is electrically connected with an analog-to-digital conversion interface of the first main MCU, the temperature sensor is electrically connected with a universal input/output port of the first main MCU through a burning program, data interaction is carried out between the temperature sensor and a universal asynchronous transceiver of the first main MCU, and temperature measurement data transmission is carried out between the temperature sensor and a two-wire serial bus of the first main MCU. The utility model can measure the data such as three-phase voltage, three-phase current, three-phase power, electric quantity and the like of the internal outlet of the circuit breaker, and the power consumption abnormality and the like can be reported to a background system in real time through a broadband carrier wave, so that a basis can be provided for big data analysis.

Description

Metering and broadband carrier modularized circuit breaker

Technical Field

The utility model belongs to the technical field of circuit breakers, and particularly relates to a metering and broadband carrier modularized circuit breaker.

Background

The traditional circuit breaker only has the on-off function, the leakage protection function is added to a little more, the metering and communication functions are not provided, some manufacturers do the metering function, but the communication is 485 or micro-power wireless, and the broadband carrier communication is not used. Thus, there is a need to add metering and broadband carrier communication to conventional circuit breakers so that conventional circuit breakers become intelligent devices. The use condition of all electrical appliances on the outgoing line of the circuit breaker can be judged by monitoring the voltage, the current and the power of the circuit breaker. When the breaker trips, the relevant data and the switching state of the breaker can be acquired in real time and transmitted to the uplink equipment in real time through the broadband carrier wave until the background, so that the intellectualization of the breaker is realized.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a metering and broadband carrier modularized circuit breaker, which solves the problems in the background art.

The utility model discloses a purpose and an effect of a circuit breaker for metering and modularization of broadband carrier waves, which are achieved by the following specific technical means:

the utility model provides a measurement and broadband carrier modularized circuit breaker, includes circuit breaker main part, first main MCU, temperature sensing subassembly, first DCDC chip, trip circuit, current transformer, measurement module and switching power supply, temperature sensor and first main MCU's analog to digital conversion interface electric connection, through the programming procedure electric connection between temperature sensor and the general type input/output of first main MCU, carry out data interaction between temperature sensor and the general asynchronous transceiver of first main MCU, carry out temperature measurement data transmission between temperature sensor and the two-wire type serial bus of first main MCU, temperature sensing subassembly and first DCDC chip electric connection, first DCDC chip and first main MCU electric connection, measurement module and first DCDC chip, trip circuit electric connection, current transformer and measurement module electric connection, measurement module and the floodgate bit state of circuit breaker main part are connected, measurement module and switching power supply's strong electric interface electric connection, first main MCU, temperature sensing subassembly, first DCDC chip, measurement module, the inside transformer of circuit breaker are located.

Further, the measurement module comprises a second main MCU, an indicator lamp, bluetooth, a metering chip, a liquid crystal display, a key, an opening and closing monitor, a release, an isolation type RS485, a Flash memory, a clock chip, a battery, a second DCDC chip, a measurement switch and a carrier module, wherein the general type input and output port of the second main MCU is electrically connected with the indicator lamp, the second main MCU is electrically connected with the Bluetooth through a general asynchronous transceiver, the Flash memory is electrically connected between a serial peripheral interface of the second main MCU and the asynchronous transceiver, the serial peripheral interfaces of the metering chip, the liquid crystal display and the second main MCU are electrically connected, the key, the opening and closing monitor are electrically connected with the general type input and output port of the second main MCU, the isolation type RS485, the carrier module and the general type input and output port of the second main MCU are electrically connected, the measurement switch and the asynchronous transceiver of the second main MCU are electrically connected with each other, the battery provides power for the clock chip, the clock chip is electrically connected with the two-wire type serial buses of the second main MCU, and the Flash chip, the DC chip is electrically connected with the second DCMCU, the DC chip is electrically connected with the DC chip, the DC chip and the DC chip, the DC chip is electrically connected with the DC chip and the DC chip, the DC chip and the DC chip is electrically connected with the DC chip.

Further, the first master MCU is a new Tang chip M252ZDA2E, the first DCDC chip and the second DCDC chip are ETA2845S2G, the second master MCU is a new Tang chip M481SIDAE, and the metering chip is HT7132.

Further, the output of circuit breaker main part is connected with the electric energy meter, the input of circuit breaker main part is connected with distribution transformer monitor terminal, distribution transformer monitor terminal communication is connected with the main website.

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

the circuit breaker is internally provided with the body function board, so that the functions of temperature measurement, tripping, switching-off and the like of the body inlet and outlet terminals are realized. The strong current interface adopts pressure sensitive protection to provide strong current input for the measuring module, and the weak current interface is designed to prevent open circuit and provides data such as current, switching-on and switching-off states and the like. The measuring module is inserted on the body function board, data interaction is achieved through UART and I2C communication, and terminal temperature data can be collected. In addition, the measurement module performs data exchange with the TTU through a power line carrier communication mode, the TTU can read the data of the switching state, voltage, current, power, electric energy, terminal temperature and the like of the body in the measurement module, and the measurement module can report important events through the power line carrier, so that the equipment such as circuit breakers, miniature circuit breakers, electric energy meters and the like with various current specifications and the TTU form a measurement and monitoring system of the whole low-voltage distribution network.

Drawings

FIG. 1 is an overall diagram of a measurement switch scheme of the present utility model.

Fig. 2 is a block diagram of the overall design of the circuit breaker hardware of the present utility model.

FIG. 3 is a block diagram of the overall design of the metrology module hardware of the present utility model.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

Examples:

as shown in fig. 1 to 3:

the utility model provides a circuit breaker with metering and broadband carrier modularization, which comprises a circuit breaker main body, a first main MCU, a temperature sensing assembly, a first DCDC chip, a tripping circuit, a current transformer, a measuring module and a switching power supply, wherein the temperature sensor is electrically connected with an analog-to-digital conversion interface of the first main MCU, the temperature sensor is electrically connected with a universal input/output port of the first main MCU through a programming program, data interaction is carried out between the temperature sensor and a universal asynchronous transceiver of the first main MCU, temperature data transmission is carried out between the temperature sensor and a two-wire serial bus of the first main MCU, the temperature sensing assembly is electrically connected with the first DCDC chip, the first DCDC chip is electrically connected with the first main MCU, the measuring module is electrically connected with the first DCDC chip and the tripping circuit, the current transformer is electrically connected with the measuring module, the measuring module is electrically connected with a gate state of the circuit breaker main body through a programming program, the first main MCU, the temperature sensing assembly, the first main MCU, the first DCDC chip is electrically connected with the measuring module, the tripping circuit main body is electrically connected with the three-wire protective circuit board through a voltage transformer, the three-phase current transformer, the tripping circuit protective board is provided with the three-phase protective circuit protective device, the three-phase protective device is provided with the protection device, and the electronic protective device is provided with the protection device through the voltage protective device.

Wherein the measuring module comprises a second main MCU, an indicator lamp, bluetooth, a metering chip, a liquid crystal display, a key, an opening and closing monitor, a release, an isolated RS485, a Flash memory, a clock chip, a battery, a second DCDC chip, a measuring switch and a carrier module, wherein the universal input and output port of the second main MCU is electrically connected with the indicator lamp, the second main MCU is electrically connected with the Bluetooth through a universal asynchronous transceiver, the Flash memory is electrically connected between a serial peripheral interface of the second main MCU and the asynchronous transceiver, the serial peripheral interface of the metering chip, the liquid crystal display and the second main MCU are electrically connected, the key, the opening and closing monitor and the release are electrically connected with the universal input and output port of the second main MCU, the isolated RS485, the carrier module and the asynchronous transceiver of the second main MCU are electrically connected with each other, the measuring switch and the asynchronous transceiver of the second main MCU and the two-wire serial bus are electrically connected, the battery provides power for the clock chip, the clock chip is electrically connected with the two-wire serial bus of the second main MCU, the second DCDC chip is electrically connected with the battery, the Flash memory, the indicator light, the Bluetooth, the metering chip, the liquid crystal display and the keys, the second DCDC chip is electrically connected with the serial peripheral interface of the second main MCU, the metering module adopts three-phase power supply, is converted into 1-path 12V output through the switching power supply module and is supplied to the main system for use, an isolation scheme is adopted between the RS485 module and the external output terminal and the main system, the electric performance of the product is enhanced, the metering module has the functions of electric energy metering, RTC, liquid crystal display, carrier communication, 485 communication, branch topology identification and the like, the MCU is externally connected with a FLASH with the size of 2MB, the local parameter setting and inquiring are convenient, and configuring a Bluetooth module interface to improve the dilatability of the device.

The first main MCU is a new Tang chip M252ZDA2E, the first DCDC chip and the second DCDC chip are ETA2845S2G, the second main MCU is a new Tang chip M481SIDAE, and the metering chip is HT7132.

The output end of the breaker main body is connected with an electric energy meter, the input end of the breaker main body is connected with a distribution transformer monitoring terminal, and the distribution transformer monitoring terminal is in communication connection with a master station.

Specific use and action of the embodiment:

when the product is used, firstly, whether the connecting part of the product is fastened or not is detected, the product is placed at a designated position after the product is ensured to be intact, and a body function board is built in the circuit breaker, so that the functions of temperature measurement, tripping, switching-off and the like of a body access terminal are realized. The strong current interface adopts pressure sensitive protection to provide strong current input for the measuring module, and the weak current interface is designed to prevent open circuit and provides data such as current, switching-on and switching-off states and the like. The measuring module is inserted on the body function board, data interaction is achieved through UART and I2C communication, and terminal temperature data can be collected. In addition, the measurement module performs data exchange with the TTU through a power line carrier communication mode, the TTU can read the data of the switching state, voltage, current, power, electric energy, terminal temperature and the like of the body in the measurement module, and the measurement module can report important events through the power line carrier, so that the equipment such as circuit breakers, miniature circuit breakers, electric energy meters and the like with various current specifications and the TTU form a measurement and monitoring system of the whole low-voltage distribution network.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (4)

1. A circuit breaker for metering and broadband carrier modularization, characterized by: the intelligent temperature sensor comprises a breaker main body, a first main MCU, a temperature sensing assembly, a first DCDC chip, a tripping circuit, a current transformer, a measuring module and a switching power supply, wherein the temperature sensor is electrically connected with an analog-to-digital conversion interface of the first main MCU, the temperature sensor is electrically connected with a general type input output port of the first main MCU through a burning program, data interaction is carried out between the temperature sensor and a general asynchronous transceiver of the first main MCU, temperature measurement data transmission is carried out between the temperature sensor and a two-wire serial bus of the first main MCU, the temperature sensing assembly is electrically connected with the first DCDC chip, the first DCDC chip is electrically connected with the first main MCU, the measuring module is electrically connected with the first DCDC chip and the tripping circuit, the current transformer is electrically connected with the measuring module, the measuring module is electrically connected with a gate state of the breaker main body, and the measuring module, the temperature sensing assembly, the first DCDC chip, the tripping circuit and the measuring module are electrically connected with the strong electric interface of the switching power supply, and the measuring module is located inside the breaker.

2. The metering and broadband carrier modular circuit breaker of claim 1, wherein: the measuring module comprises a second main MCU, an indicator lamp, bluetooth, a measuring chip, a liquid crystal display, a key, an opening and closing monitor, a release, an isolated RS485, a Flash memory, a clock chip, a battery, a second DCDC chip, a measuring switch and a carrier module, wherein the universal input and output port of the second main MCU is electrically connected with the indicator lamp, the second main MCU is electrically connected with the Bluetooth through a universal asynchronous transceiver, the Flash memory is electrically connected between a serial peripheral interface of the second main MCU and the asynchronous transceiver, the serial peripheral interfaces of the measuring chip, the liquid crystal display and the second main MCU are electrically connected, the key, the opening and closing monitor and the release are electrically connected with the universal input and output port of the second main MCU, the isolated RS485, the carrier module and the asynchronous transceiver of the second main MCU are electrically connected, the measuring switch and the asynchronous transceiver of the second main MCU are electrically connected with each other through the universal asynchronous transceiver, the battery provides power for the clock chip, the two-wire serial buses of the clock chip and the second main MCU are electrically connected with the Flash memory, and the second DCDC chip is electrically connected with the second main MCU, the DC chip is electrically connected with the DC chip, the DC chip and the DC chip are electrically connected with the serial bus, the DC chip and the DC chip.

3. The metering and broadband carrier modular circuit breaker of claim 2, wherein: the first main MCU is a new Tang chip M252ZDA2E, the first DCDC chip and the second DCDC chip are ETA2845S2G, the second main MCU is a new Tang chip M481SIDAE, and the metering chip is HT7132.

4. The metering and broadband carrier modular circuit breaker of claim 1, wherein: the output of circuit breaker main part is connected with the electric energy meter, the input of circuit breaker main part is connected with distribution transformer monitoring terminal, distribution transformer monitoring terminal communication is connected with the main website.