CN206401875U - A micro-break reclosing electronic controller and miniature circuit breaker - Google Patents

Abstract

The utility model discloses a micro-break reclosing electronic controller and a miniature circuit breaker, which belong to the technical field of micro-break reclosing. The utility model includes an electric energy collection module, a control module, an analog switch, a micro-break power supply and a low-power supply module. The electric energy collection module is connected to the main circuit L and N for outgoing lines. Switches, power consumption identification modules and electric energy meters, one output of the electric energy meter is connected to the control module; the other is connected in series with the analog switch, the micro-cut power supply and the control module, the control module is controlled by the motor drive module to perform motor actions, and the control module controls Opening and closing of the analog switch; the third channel is connected to the control module through the low power consumption power supply module. The utility model can control the automatic disconnection and automatic reclosing of the miniature circuit breaker according to the requirements of energy-saving and electricity metering. In addition to improving the informationization, networking and intelligence of the power distribution system, it also improves the energy saving and consumption reduction in the low-voltage electrical field. Level.

Description

A micro-break reclosing electronic controller and miniature circuit breaker

technical field

The utility model relates to the technical field of micro-break reclosing, in particular to an electronic controller for micro-break reclosing and a miniature circuit breaker.

Background technique

With the continuous upgrading of the national grid, many smart electrical equipment have been applied to the construction of the grid, and micro-break reclosing is a new application attempt. As we all know, the electric energy meter is a metering product for urban and rural residents to use electricity. The traditional electricity consumption is measured by the electric energy meter. Second, it is too troublesome. However, when the micro-break recloser is used, when the electricity sales of the electric energy meter card meter is used up, the electric energy meter will send an instruction to the micro-break recloser, and the micro-break can cut off the power within a few seconds after receiving the command (the time can be set) , to realize the function of automatic power-off in arrears, but after the user sells electricity through the electricity sales system, professionals need to manually send electricity, and during the arrears period, it is necessary to ensure that the micro-break cannot be manually closed. Huge labor costs for maintenance still cannot solve the problem of timeliness of power storage, which greatly reduces the user's power consumption experience. In addition, the existing miniature circuit breaker itself consumes a lot of power in the standby state, and the safety and reliability of the micro-circuit breaker cannot be guaranteed.

With the continuous improvement of informationization, networking, intelligence and multi-functionality of power distribution system, it is the general trend to develop an energy-saving micro-break such as automatic reclosing that is matched with the electric energy meter, and it is also the development direction of the miniature circuit breaker.

After searching, the Chinese patent number ZL 201320480312.8, the date of authorization announcement is February 5, 2014, and the name of the invention is: an automatic reclosing miniature circuit breaker with negative control signal control; the application is made by the modular miniature circuit breaker D , residual current sampling operation amplification control unit LD, load control signal processing and control unit YF, opening drive device T, automatic reclosing control unit HD, negative control signal input terminal K1, the application not only has overload, short circuit, Overvoltage, undervoltage, leakage and other protection functions, and also has the automatic reclosing function of controlling the automatic disconnection of the miniature circuit breaker and load signal control according to the electricity metering requirements, and can be installed and used in conjunction with the prepaid energy meter.

Chinese Patent No. ZL 201520361532.8, the authorized announcement date is September 9, 2015, also discloses a small prepaid circuit breaker with automatic reclosing; the application control circuit includes a single-chip microcomputer, a drive module and a motor, and the single-chip microcomputer is controlled by the drive module The motor; the control circuit also includes a trigger circuit for detecting signals from the ammeter, and the trigger circuit triggers and controls the power supply circuit connected to supply power for the single-chip microcomputer. The application uses a single-chip microcomputer control circuit, and realizes the closing process by controlling the power supply circuit of the single-chip microcomputer. Compared with the existing electrical control circuit, it can realize the reclosing function and has strong scalability.

Although the above two applications can realize the function of automatic power transmission after the user pays the fee, the above-mentioned applications cannot guarantee the safety and reliability of micro-cutoff electricity, and the above-mentioned two applications do not take into account The problem of high power consumption of the miniature circuit breaker in the standby state still needs further improvement.

Contents of the invention

1. The technical problems to be solved by the utility model

In order to overcome the problems existing in the above-mentioned prior art, the utility model provides a micro-break reclosing electronic controller and a micro-circuit breaker. Automatic reclosing, in addition to improving the informationization, networking, and intelligence of the power distribution system, also improves the automation management level of energy saving and consumption reduction in the low-voltage electrical field.

2. Technical solution

In order to achieve the above object, the technical solution provided by the utility model is:

A micro-break reclosing electronic controller of the utility model includes an electric energy collection module, a control module, a motor drive module, an execution motor, an analog switch, a micro-break power supply, and a low-power supply module. The electric energy collection module is connected to the main Circuits L and N go out. The power collection module includes 3 outputs, one of which is connected in series with a power switch, a power identification module, and a power meter. One output of the power meter is connected to the control module; the other is connected in series with an analog switch, a micro Cut off the power supply and the control module, the control module is controlled by the motor drive module to perform motor actions, and one output of the control module is connected to the analog switch to control the opening and closing of the analog switch; the power acquisition module in the third circuit is powered by low power consumption The module is connected to the control module.

As a further improvement of the utility model, the micro-break reclosing electronic controller also includes a Hall sensor signal identification module, the input terminal of the Hall sensor signal identification module is connected with the Hall sensor, and the Hall sensor identifies the opening and closing Gate position, the output end of the hall sensing signal identification module is connected with the input end of the control module.

As a further improvement of the utility model, one output of the micro-interruption power supply is connected to the motor drive module, and the micro-interruption power supply supplies power to the motor drive module at the same time.

As a further improvement of the utility model, the control module adopts a single-chip microcomputer.

A miniature circuit breaker of the present utility model is provided with the micro-break reclosing electronic controller.

3. Beneficial effect

Adopting the technical solution provided by the utility model, compared with the existing known technology, has the following beneficial effects:

(1) A micro-break reclosing electronic controller of the utility model, under the premise of ensuring that the electric energy meter has an electric signal to send, the single-chip microcomputer sends the signal, and the motor drive module receives the signal of the single-chip microcomputer, and transmits electric energy to the executive motor, and the miniature circuit breaker To achieve opening or closing, the automatic opening and automatic reclosing of miniature circuit breakers can be controlled according to the energy-saving electricity metering requirements, which improves the informationization, networking, and intelligence of the power distribution system, and reduces the maintenance investment of power grid companies. Labor cost, timely power storage, and good power consumption experience for users;

(2) A kind of micro-break reclosing electronic controller of the utility model, the electric energy acquisition module is connected with the control module through the low-power supply module, and provides additional low-power supply power supply for the single-chip microcomputer. Its own power consumption can be reduced to less than 0.2 watts, which greatly saves energy consumption and improves the automatic management level of energy saving and consumption reduction in the low-voltage electrical field;

(3) A micro-break reclosing electronic controller of the utility model adopts Hall sensing technology to automatically detect the closing and opening state, and adopts a single-chip microcomputer control circuit to realize the closing process by controlling the power supply circuit of the single-chip microcomputer to be on and off , ensuring the safety and reliability of electricity consumption, and avoiding the loss of electricity consumption of the national grid;

(4) The micro-break reclosing electronic controller of the utility model has a simple circuit structure, low manufacturing cost, and is convenient for popularization and application.

Description of drawings

Fig. 1 is a structural block diagram of a micro-break reclosing electronic controller of the utility model.

detailed description

In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

Example 1

With reference to Fig. 1, a micro-break reclosing electronic controller of this embodiment includes a power collection module, a control module, a motor drive module, an execution motor, an analog switch, a micro-break power supply, a low-power power supply module and a Hall sensor Signal identification module, the power collection module is connected to the L and N outlets of the main circuit, and the power collection module includes 3 outputs, wherein the first output is sequentially connected in series with the power switch, the power identification module and the electric energy meter, and the electric energy One output of the meter is connected to the control module; the other is connected in series with the analog switch, the micro-cutoff power supply and the control module. The control module is controlled by the motor drive module to perform motor actions, and one output of the control module is connected to the analog switch to control The opening and closing of the analog switch, one output of the micro-interruption power supply is connected to the motor drive module, and the micro-interruption power supply supplies power to the motor drive module at the same time; the power collection module in the third circuit is connected to the control module through the low-power supply module. The input terminal of the Hall sensor signal identification module is connected to the Hall sensor, and the Hall sensor identifies the opening and closing positions, and the output terminal of the Hall sensor signal identification module is connected to the input terminal of the control module. This embodiment adopts Hall sensing technology to automatically detect the closing and opening state, and the control module adopts a single-chip microcomputer, and realizes the closing process by controlling the power supply circuit of the single-chip microcomputer, ensuring the safety and reliability of power consumption. Protected from the loss of power consumption of the national grid.

The working process of the micro-break reclosing electronic controller of this embodiment is as follows: when the micro-break power supply is powered on, one power supply is sent to the motor drive module, and the executive motor is powered, and the second power supply is sent to the single-chip microcomputer to work, and the single-chip detection circuit recognizes and divides In the closing state, under the premise of ensuring that the electric energy meter has an electric signal to send, the single-chip microcomputer sends the closing signal, and the motor drive module receives the closing signal of the single-chip microcomputer, and transmits the closing electric energy to the executive motor, and the micro-break closes, and the micro-break switch sends a close The gate signal is recognized by the electric energy meter. When the electric energy meter sends the opening signal to the miniature circuit breaker due to arrears, the single-chip microcomputer detection circuit recognizes the opening signal and starts to send the opening signal to the motor drive module. The motor drive module sends the opening electric energy to the Execution motor, the execution motor starts to open and rotate, and the Hall sensor identifies the opening position and sends a signal to the Hall sensor signal identification module. The Hall sensor signal identification module processes the signal and sends it to the single-chip microcomputer, and the single-chip microcomputer stops sending The command is given to the motor drive module, and the motor drive module stops executing the electric energy of the motor, executes the motor stop, and the closing process is the same as above. In this embodiment, under the premise of ensuring that the electric energy meter has an electric signal to send, the single-chip microcomputer sends the signal, the motor drive module receives the signal of the single-chip microcomputer, and transmits electric energy to the executive motor, and the miniature circuit breaker realizes opening or closing, which can be based on energy-saving electricity metering requirements To control the automatic disconnection and automatic reclosing of the miniature circuit breaker, it improves the informatization, networking, and intelligence of the power distribution system, reduces the labor cost of the grid company's maintenance investment, stores electricity in a timely manner, and provides users with a good electricity experience. But the MCU sends an instruction to turn off the analog switch, the analog switch is turned off, and only the low-power power supply module outputs a small current to maintain the operation of the MCU. The power consumption can be reduced to less than 0.2 watts, which greatly saves energy consumption, and also improves the automatic management level of energy saving and consumption reduction in the low-voltage electrical field.

The above schematically describes the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention of the utility model, without creatively designing a structural mode and an embodiment similar to the technical solution, it shall belong to the utility model. protected range.

Claims (5)

1. A micro-break reclosing electronic controller, comprising a power acquisition module, a control module, a motor drive module and an executive motor, is characterized in that: it also includes an analog switch, a micro-break power supply and a low-power supply module, and the electric energy The acquisition module is connected to the main circuit L and N outlets. The power acquisition module includes 3 outputs, one of which is connected in series with the power switch, the power identification module and the electric energy meter. One output of the electric energy meter is connected with the control module; the other is connected in series An analog switch, a micro-cut power supply and a control module, the control module is controlled by the motor drive module to perform motor actions, and one output of the control module is connected to the analog switch to control the opening and closing of the analog switch; The low power consumption power supply module is connected with the control module. 2. A kind of micro-break reclosing electronic controller according to claim 1, characterized in that: the micro-break reclosing electronic controller also includes a Hall sensing signal identification module, and the input of the Hall sensing signal identification module The end is connected with the Hall sensor, the Hall sensor recognizes the opening and closing positions, and the output end of the Hall sensor signal recognition module is connected with the input end of the control module. 3. The micro-break reclosing electronic controller according to claim 2, characterized in that: one output of the micro-break power supply is connected to the motor drive module, and the micro-break power supply supplies power to the motor drive module at the same time. 4. A micro-break reclosing electronic controller according to claim 3, characterized in that: said control module adopts a single-chip microcomputer. 5. A miniature circuit breaker, characterized in that the miniature circuit breaker is provided with the micro-break reclosing electronic controller according to any one of claims 1-4.