Intelligent miniature circuit breaker with wireless remote control function

Abstract

The utility model relates to an intelligent miniature circuit breaker with a wireless remote control function, which comprises a switch body and an electric operation unit, the switch body is a miniature circuit breaker, a current sensor, a temperature sensor and a residual current sensor are connected in series in each stage of the switch, and signal lines of the sensors are led into a main control circuit board in the electric operation unit; the electric operation unit comprises an outer shell composed of a left shell body, a middle shell body and a right shell body, the middle shell body is arranged between the left shell body and the right shell body, a communication board is arranged between the left shell body and the middle shell body, and a signal board, a reduction gear and a power board are sequentially arranged between the middle shell body and the right shell body. One ends of the middle shell and the right shell are connected with the trip coil, and the other ends are connected with the motor; and the signal board is respectively connected with the communication board and the power supply board. According to the utility model, the functions of remote control, abnormity early warning, accident tripping alarm, electric energy metering statistics, fault positioning and the like are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to an intelligent miniature circuit breaker with a wireless remote control function. Background Art

[0002] Circuit breaker: A mechanical switch that can connect, carry and disconnect current under normal circuit conditions, and can also connect, carry and disconnect current for a certain period of time under specified abnormal circuit conditions. With the improvement of standardization and stability of circuit breakers, its use is becoming more and more extensive. It is widely used in low-voltage terminal distribution networks in industrial, commercial, civil buildings and infrastructure in indoor buildings and similar places. It is the most widely used insurance device; at the same time, it is also an important automatic control device. The miniature circuit breakers on the market currently have the following defects:

[0003] (1) The circuit breaker can only be opened and closed locally. When the line needs to be opened and closed, personnel need to go to the local area to operate, which is very inefficient.

[0004] (2) If the circuit breaker trips due to various faults such as overcurrent, short circuit, overtemperature, etc., personnel need to go to the site to investigate the cause of the trip. It is impossible to remotely monitor and quickly investigate the cause of the abnormal trip, analyze and solve the problem quickly, and close the circuit breaker to supply power.

[0005] (3) It is impossible to know the opening and closing status of the miniature circuit breaker in real time, judge the power consumption of equipment in the office and production areas, and achieve remote supervision of production and energy-consuming equipment. Summary of the invention

[0006] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide an intelligent miniature circuit breaker with wireless remote control function to perform real-time monitoring of electrical parameters and realize remote opening and closing control, fault analysis, remote supervision, etc.

[0007] The purpose of the utility model is achieved in this way:

[0008] An intelligent miniature circuit breaker with wireless remote control function, comprising a switch body and an electric operation unit, wherein the switch body and the electric operation unit are an integrated structure, the switch body is a miniature circuit breaker, and each level of the switch is connected in series with a current sensor, a temperature sensor and a residual current sensor, and the above sensor signal lines are introduced into a main control circuit board in the electric operation unit;

[0009] The electric operation unit comprises an outer shell composed of a left shell, an intermediate shell and a right shell, wherein the intermediate shell is arranged between the left shell and the right shell, a communication board is arranged between the left shell and the intermediate shell, a signal board, a reduction gear and a power board are arranged between the intermediate shell and the right shell in sequence, one end of the intermediate shell and the right shell is connected to a tripping coil, and the other end is connected to a motor; sockets are respectively arranged on both sides of the signal board, the socket on the left side is connected to the communication board through a pin, and the socket on the right side is connected to the power board through a pin;

[0010] The signal board is provided with a signal board single chip microcomputer, a motor control circuit, a signal acquisition unit, a residual current control unit, an RS485 communication interface, a micro switch, a ferroelectric memory and a TTL communication circuit. The signal board single chip microcomputer is respectively connected to the motor control circuit, the signal acquisition unit, the residual current control unit, the RS485 communication interface, the micro switch, the ferroelectric memory and the TTL communication circuit. The communication board 4 is provided with a communication board single chip microcomputer, a 4G communication module, a 4G module power control circuit, a TTL communication circuit and a 4G card slot circuit. The connection pins between the communication board and the signal board provide a 12V power supply for the communication board to work.

[0011] Furthermore, a key panel is connected above the signal panel, the key panel and the signal panel are connected via a flexible flat cable, and the key panel is arranged on the top surface of the outer shell.

[0012] Furthermore, a button LED indicator light is provided on the keypad, which is mainly used to display the local opening and closing status. The opening status is displayed with a green light, and the closing status is displayed with a red light. The circuit breaker can be controlled locally to open and close the circuit breaker by pressing a button.

[0013] Furthermore, the TTL communication circuit connects the communication board and the signal board to realize communication between the communication board and the signal board, and the signal board receives control commands from the communication board.

[0014] Furthermore, the RS485 communication interface communicates with the host computer debugging software.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides an intelligent miniature circuit breaker with wireless remote control function, which integrates sensors, electric control units and communication units internally, realizes remote monitoring of switch status, real-time monitoring of electrical parameters such as voltage, current, power, temperature, residual current, energy consumption, etc., and has functions such as remote control, abnormal warning, accident tripping alarm, electric energy metering statistics, fault location, etc.; and can report abnormal conditions and alarm in time through wireless transmission methods such as 4G modules; at the same time, if the circuit breaker trips due to these abnormalities on site, the fault analysis of the tripping can also be realized, and there is no need to arrange personnel to arrive at the site for operation, thereby improving the operation efficiency; at the same time, through internal motor gears and other components, the remote opening and closing circuit breaker instructions can be issued through 4G wireless, saving human resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the external front view of the product of the utility model.

[0018] Figure 2 It is an external side view of the product of the utility model.

[0019] Figure 3 It is an explosion diagram of the utility model.

[0020] Figure 4 This is a functional principle block diagram of the utility model.

[0021] in:

[0022] Switch body 1, electric operation unit 2, left housing 3, communication board 4, middle housing 5, signal board 6, tripping coil 7, reduction gear 8, motor 9, power board 10, key board 11, right housing 12. Implementation

[0023] In order to better understand the technical solution of the present invention, the following will be described in detail in conjunction with the relevant illustrations. It should be understood that the following specific embodiments are not intended to limit the specific implementation of the technical solution of the present invention, and are only implementations that can be adopted by the technical solution of the present invention. It should be noted that the description of the positional relationship of each component in this article, such as component A being located above component B, is based on the description of the relative positions of the components in the illustration, and is not intended to limit the actual positional relationship of the components. Example 1

[0024] See also Figure 1-4 , Figure 3An exploded diagram of an intelligent miniature circuit breaker with wireless remote control function of the utility model is drawn. As shown in the figure, the utility model involves an intelligent miniature circuit breaker with wireless remote control function, which includes a switch body 1 and an electric operation unit 2, the switch body 1 and the electric operation unit 2 adopt a left-right integrated structure, and the two are fixed by rivets; the switch body 1 is a miniature circuit breaker, and each level of the switch is connected in series with a current sensor, a temperature sensor and a residual current sensor, which are used to collect the power parameters, temperature parameters, residual current parameters, etc. of the cable, the current signal can be used to measure the real-time current of the cable, record overcurrent and short circuit conditions, the temperature signal can be used to detect whether the cable temperature is overheated, and the residual current signal can be used to detect whether the cable has residual current and the specific residual current value; the above sensor signal lines are introduced into the main control circuit board in the electric operation unit 2, providing the circuit board for measurement, and judgment and analysis basis for abnormal warning and accident trip alarm.

[0025] The electric operation unit 2 includes an outer shell consisting of a left shell 3, an intermediate shell 5 and a right shell 12. The intermediate shell 5 is arranged between the left shell 3 and the right shell 12, and is fixedly connected by rivets. A communication board 4 is arranged between the left shell 3 and the intermediate shell 5, and a signal board 6, a reduction gear 8 and a power supply board 10 are arranged between the intermediate shell 5 and the right shell 12 in sequence. One end of the intermediate shell 5 and the right shell 12 is connected to a tripping coil 7, and the other end is connected to a motor 9.

[0026] Sockets are provided on both sides of the signal board 6. The socket on the left is connected to the communication board 4 through a pin, and the socket on the right is connected to the power board 10 through a pin. A through hole is provided on the intermediate shell 5 for the insertion of the pin.

[0027] A key panel 11 is connected above the signal panel 6, and the key panel 11 is connected to the signal panel 6 through a flexible flat cable. The key panel 11 is arranged on the top surface of the outer shell; a key LED indicator light is provided on the key panel 11, which is mainly used for local opening and closing status display. The opening status displays a green light, and the closing status displays a red light. The local circuit breaker can be opened and closed by pressing a button.

[0028] The power board 10 obtains working power (AC220V) through the live wires of each level introduced by the switch body 1, and converts it into DC12V, DC5V, DC3.3V and other voltages through a transformer to supply the operating unit 2 for operation.

[0029] The signal board 6 is provided with a signal board single chip microcomputer, a motor control circuit, a signal acquisition unit, a residual current control unit, an RS485 communication interface, a micro switch, a ferroelectric memory and a TTL communication circuit, etc., for receiving wireless control commands and then controlling the action of the motor and the reduction gear;

[0030] The signal board microcontroller is mainly used to control the entire motor control, signal acquisition, residual current control and communication control functions; the motor control circuit is mainly used to control the start, stop, brake, forward and reverse rotation of the motor;

[0031] The signal acquisition unit uses a dedicated metering chip to collect electrical parameters such as voltage, current, power, temperature, residual current, energy consumption, etc. in the circuit breaker cable, and can also collect the current circuit breaker opening and closing status;

[0032] The residual current control unit is used to detect whether the residual current flow in the cable is higher than the set value. If it is higher than the set value, it can trigger the trip coil to immediately close, causing the circuit breaker to trip;

[0033] The RS485 communication interface is used to communicate with the host computer debugging software.

[0034] The micro switch is used to detect the action position of the reduction gear 8. If the reduction gear 8 encounters the limit position of the micro switch, the motor is immediately controlled to brake and stop rotating.

[0035] The ferroelectric memory is used to store parameters and calibration data; the TTL communication circuit is used to work with the communication board 4.

[0036] The communication board 4 is provided with a communication board single chip microcomputer, a 4G communication module, a 4G module power supply control circuit, a TTL communication circuit and a 4G card slot circuit. The connection pins between the communication board 4 and the signal board 6 provide a 12V power supply for the communication board 4 to work;

[0037] The communication board MCU is used as the main control to transmit the commands received by the 4G module to the signal board MCU through the TTL circuit;

[0038] The 4G communication module and the 4G module power control circuit are used to receive the opening and closing control commands sent from the cloud, send them to the 4G module through the communication base station, and finally send them to the signal control motor to act; the 4G card slot is used to insert the 4G Internet of Things traffic card;

[0039] The TTL communication circuit is used for the communication board 4 to communicate with the signal board 6 , and the signal board 6 receives the control command of the communication board 4 .

[0040] Working principle:

[0041] The tripping coil of the utility model is used in conjunction with the residual current control unit of the signal board; the motor is used in conjunction with the reduction gear, the motor is sent a command by the single chip microcomputer, the motor control circuit is started and then controlled, after the motor works, it drives the reduction gear to work, when it reaches the third stage reduction gear, it drives the rocker arm gear that rotates together with the switch handle to rotate, while the rocker arm gear rotates, it drives the switch handle to move, thereby realizing the closing and opening actions of the switch.

[0042] By detecting the electrical parameters of the cable, collecting the voltage, current, power, temperature, residual current and energy consumption, and collecting the current opening and closing status of the circuit breaker, it is possible to monitor the abnormalities of the circuit breaker such as overcurrent, overload, short circuit, overtemperature, residual current, etc. caused by abnormal power consumption, and immediately report the abnormal situation through wireless transmission methods such as 4G modules, and alarm in time.

[0043] At the same time, if the circuit breaker trips due to these abnormalities on site, the fault analysis of the trip can be carried out, eliminating the need for personnel to go to the site; at the same time, through internal motor gears and other components, remote opening and closing circuit breaker instructions can be issued through 4G wireless, greatly reducing human resources.

[0044] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. An intelligent miniature circuit breaker with wireless remote control function, characterized in that: It comprises a switch body (1) and an electric operating unit (2), wherein the switch body (1) and the electric operating unit (2) are of an integrated structure, the switch body (1) is a miniature circuit breaker, and each stage of the switch is connected in series with a current sensor, a temperature sensor and a residual current sensor, and the above sensor signal lines are introduced into a main control circuit board in the electric operating unit (2); The electric operation unit (2) comprises an outer shell composed of a left shell (3), an intermediate shell (5) and a right shell (12); the intermediate shell (5) is arranged between the left shell (3) and the right shell (12); a communication board (4) is arranged between the left shell (3) and the intermediate shell (5); a signal board (6), a reduction gear (8) and a power board (10) are arranged in sequence between the intermediate shell (5) and the right shell (12); one end of the intermediate shell (5) and the right shell (12) is connected to a tripping coil (7), and the other end is connected to a motor (9); sockets are respectively arranged on both sides of the signal board (6); the socket on the left side is connected to the communication board (4) through a pin, and the socket on the right side is connected to the power board (10) through a pin; The signal board (6) is provided with a signal board single chip microcomputer, a motor control circuit, a signal acquisition unit, a residual current control unit, an RS485 communication interface, a micro switch, a ferroelectric memory and a TTL communication circuit. The signal board single chip microcomputer is respectively connected to the motor control circuit, the signal acquisition unit, the residual current control unit, the RS485 communication interface, the micro switch, the ferroelectric memory and the TTL communication circuit. The communication board (4) is provided with a communication board single chip microcomputer, a 4G communication module, a 4G module power supply control circuit, a TTL communication circuit and a 4G card slot circuit. The connection pins between the communication board (4) and the signal board (6) provide a 12V power supply for the communication board (4) to operate.

2. The intelligent miniature circuit breaker with wireless remote control function according to claim 1, characterized in that: The top of the signal board (6) is connected to a key board (11), the key board (11) and the signal board (6) are connected via a flexible flat cable, and the key board (11) is arranged on the top surface of the outer shell.

3. The intelligent miniature circuit breaker with wireless remote control function according to claim 2, characterized in that: The keypad (11) is provided with a key LED indicator light for displaying the local opening and closing status, with a green light indicating the opening state and a red light indicating the closing state. The circuit breaker can be opened and closed locally by controlling the key.

4. The intelligent miniature circuit breaker with wireless remote control function according to claim 1, characterized in that: The TTL communication circuit connects the communication board (4) and the signal board (6) to realize communication between the communication board (4) and the signal board (6), and the signal board (6) receives control commands from the communication board (4).

5. The intelligent miniature circuit breaker with wireless remote control function according to claim 1, characterized in that: The RS485 communication interface communicates with the host computer debugging software.

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