CN209947774U

CN209947774U - Intelligent miniature circuit breaker

Info

Publication number: CN209947774U
Application number: CN201921273536.5U
Authority: CN
Inventors: 毛海锋; 周峰; 华艳
Original assignee: Following Electrical Equipment Ltd Co In Suzhou
Current assignee: Following Electrical Equipment Ltd Co In Suzhou
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-01-14
Anticipated expiration: 2029-08-07

Abstract

The utility model relates to an intelligent miniature circuit breaker, which comprises a shell, a first mechanical locking component, an operating handle component, an electromagnetic trip, a dynamic contact, a static contact, a rapid arc extinguishing component, an incoming line interface and an outgoing line interface, wherein a second mechanical locking component is arranged at the back side of the shell and is connected with the operating handle component, an electromagnetic mechanism is arranged beside the second mechanical locking component, a PCB (printed circuit board) is arranged at the back side of the shell and is connected with the electromagnetic mechanism; a singlechip is arranged on the PCB; and a zero sequence transformer is arranged at the inlet wire interface. Through the cooperation of second locking subassembly and electromagnetic mechanism, realize the drive to the operating handle subassembly, and the power supply of electromagnetic mechanism comes from the electric current that the PCB board sent, and zero sequence transformer handles back drive electromagnetic mechanism motion with electric leakage signal input PCB board through the singlechip, has increased the electric leakage detection function of circuit breaker, records fault condition through the PCB board simultaneously, promotes the security performance of circuit breaker.

Description

Intelligent miniature circuit breaker

Technical Field

The utility model relates to a circuit breaker among the low pressure power consumption field especially relates to a miniature circuit breaker of intelligence.

Background

A miniature Circuit breaker, mcb (micro Circuit breaker) for short, is a terminal protection electrical apparatus used most widely in electrical terminal distribution equipment of buildings, and is mainly used for connection and disconnection operations of lines, overload and short Circuit protection, and the like in civil building design. The current miniature circuit breaker comprises operating handle, mechanical locking, overload protection bimetallic strip, electromagnetism release, moving contact, static contact and rapid arc extinguishing chamber, and this kind of miniature circuit breaker does not protect the electric leakage, and its security is lower, and above-mentioned structure also is simple to realize through mechanical structure and does not take notes various fault conditions in the circuit, takes place to damage when certain module and leads to the circuit breaker can not in time break, leads to dangerous probability greatly increased that appears.

Disclosure of Invention

The utility model aims to solve the technical problem that a can realize earth leakage protection and carry out fault record's intelligent miniature circuit breaker is provided.

The utility model provides a technical scheme that its technical problem adopted is: an intelligent miniature circuit breaker comprises a shell, a first mechanical locking assembly, an operating handle assembly, an electromagnetic trip, a dynamic contact, a static contact, a rapid arc extinguishing assembly, an incoming line interface and an outgoing line interface, wherein a second mechanical locking assembly is arranged on the back side of the shell and is connected with the operating handle assembly, an electromagnetic mechanism connected to the second mechanical locking assembly is arranged beside the second mechanical locking assembly, a PCB is arranged on the back side of the shell and is connected with the electromagnetic mechanism; an embedded single chip microcomputer is arranged on the PCB; and a zero sequence transformer connected with the PCB is arranged at the inlet wire interface.

Further specifically, the electromagnetic mechanism comprises an iron core, a coil wound on the iron core and a push rod arranged in the middle of the iron core, and the push rod is connected with the second mechanical locking assembly.

Further specifically, a current transformer is arranged inside the shell and connected to the PCB.

More specifically, a temperature sensor is arranged in the shell and connected to the PCB.

Further specifically, a hall sensor is arranged on the operating handle assembly, and the hall sensor is connected to the PCB.

Further specifically, a wired network connection, a wireless network connection and a Bluetooth connection are arranged on the PCB.

Further specifically, the shell on set up a leaded light post button, leaded light post button connect be used for equipment reset and manual net of joining in marriage on the PCB board, have voltage anomaly and instruct and power instruction function simultaneously.

More specifically, the PCB board may be powered by an external power source.

The utility model has the advantages that: after having adopted above structure, through the cooperation of second locking subassembly with electromagnetic mechanism, realize the drive to the operating handle subassembly, and the power supply of electromagnetic mechanism comes from the electric current that the PCB board sent, and zero sequence transformer detects that electric leakage phenomenon appears in the circuit and handles back drive electromagnetic mechanism motion with signal input PCB board through the singlechip, has increased the electric leakage real-time detection function of circuit breaker, records fault state through the PCB board simultaneously, promotes the security performance of circuit breaker.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic rear view of the present invention.

In the figure: 1. a housing; 2. a first mechanical locking assembly; 3. an operating handle assembly; 4. an electromagnetic release; 5. a dynamic contact; 6. a static contact; 7. a rapid arc extinguishing component; 8. an incoming line interface; 9. an outgoing line interface; 10. a second mechanical locking assembly; 11. an electromagnetic mechanism; 12. a PCB board; 13. a zero sequence transformer; 14. a current transformer; 15. a Hall sensor; 16. a light guide post button; 17. a network interface.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, an intelligent miniature circuit breaker includes a housing 1, a first mechanical locking assembly 2, an operating handle assembly 3, an electromagnetic trip 4, a dynamic contact 5, a static contact 6, a rapid arc extinguishing assembly 7, an incoming line interface 8 and an outgoing line interface 9, wherein a second mechanical locking assembly 10 is arranged on the back side of the housing 1, the second mechanical locking assembly 10 is connected with the operating handle assembly 3, an electromagnetic mechanism 11 connected to the second mechanical locking assembly 10 is arranged beside the second mechanical locking assembly 10, the electromagnetic mechanism 11 includes an iron core, a coil wound on the iron core, and a push rod arranged in the middle of the iron core, and the push rod is connected with the second mechanical locking assembly 10; a PCB 12 is arranged on the back side of the shell 1, and the PCB 12 is connected with an electromagnetic mechanism 11; the PCB 12 is provided with a singlechip based on a PLC system; a zero sequence transformer 13 connected with a PCB 12 is arranged at the inlet wire interface 8; software is embedded in the single chip microcomputer, the software is mainly used for processing signals, and meanwhile, a module for receiving the signals and a module for sending out control signals are arranged on the PCB 12; the leakage signal is collected through the zero sequence transformer 13, the PCB 12 receives the signal and transmits the signal to the single chip microcomputer, the signal is processed by the embedded software of the single chip microcomputer, the processing result is set according to the software to send out a control signal to control the movement of the electromagnetic mechanism 11, and the electromagnetic mechanism 11 drives the second mechanical locking assembly 10 and the operating handle assembly 3 to move to realize the open circuit operation.

Based on above-mentioned structure, set up current transformer 14 in the shell, current transformer 14 connect on PCB board 12, the software on PCB board 12 has the function of judging the electric current simultaneously, can open circuit the operation through prior art when transshipping or short circuit, also can send out the signal through PCB board 12 and carry out the disconnection operation, safe and reliable more.

Further, for the safety of protection circuit breaker, shell 1 in set up temperature sensor, temperature sensor connect on PCB board 12, corresponding software possesses the function of judging the temperature, can set up in advance and prescribe a limit to the temperature, temperature sensor gathers the inside temperature signal of circuit breaker to judge in transmitting this temperature signal to the singlechip, when software judgement temperature is higher than the setting value, PCB board 12 sends control signal disconnection circuit breaker.

Operating handle subassembly 3 on set up hall sensor 15, hall sensor 15 connect on PCB board 12, hall sensor 15's main effect is through judging operating handle subassembly 3's position to judge the combined floodgate and the state of opening the floodgate of circuit breaker, the state feedback of circuit breaker and record are in the singlechip of PCB board 12.

In order to realize the transmission of the information recorded in the PCB 12, a network interface 17 is arranged on the PCB 12 and is realized through wired network connection, wireless network connection or Bluetooth connection, and simultaneously, networking indication is realized through the light of a light guide column button 16 connected to the PCB 12, for example, when a green light is on, networking is successful, and when a red light is on, networking is disconnected, the light guide column button 16 can also achieve the purpose of manual network disconnection, the light guide column button 16 also has the functions of equipment resetting and manual network distribution, and also has the functions of voltage abnormity indication and power indication, specific control needs to be carried out through a PIC system, and more functions can be developed according to the requirements of customers in the follow-up process, so that the light guide column button 16 becomes a multifunctional button; the wired network connection and the wireless network connection enable the PCB 12 to be connected with a network, so that the collected information can be remotely transmitted, and the switching-on and switching-off of the circuit breaker can be remotely controlled; the Bluetooth connection can realize direct connection of the mobile terminal, realize quick reading of the information of the circuit breaker, judge the fault information in the circuit in time according to the information of the circuit breaker and maintain; the PCB 12 can be directly powered by the power supply line, but cannot be remotely controlled when the power is off; the power supply can also be carried out through the outside, the external power supply voltage is 12V or 24V, and the remote control can be carried out at any state of the circuit breaker.

To sum up, adopt above-mentioned circuit breaker, can realize the detection of electric leakage, the detection of electric current, the detection of temperature, the detection of circuit breaker state and realized the network connection through PCB board 12, this circuit breaker has realized the purpose that the secondary detected on original circuit breaker basis, improves its security performance to realize the networking, can transmit fault information through the network, can realize remote control.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. An intelligent miniature circuit breaker comprises a shell (1), a first mechanical locking assembly (2), an operating handle assembly (3), an electromagnetic trip (4), a dynamic contact (5), a static contact (6), a rapid arc extinguishing assembly (7), an incoming line interface (8) and an outgoing line interface (9), and is characterized in that a second mechanical locking assembly (10) is arranged on the back side of the shell (1), the second mechanical locking assembly (10) is connected with the operating handle assembly (3), an electromagnetic mechanism (11) connected to the second mechanical locking assembly (10) is arranged beside the second mechanical locking assembly (10), a PCB (12) is arranged on the back side of the shell (1), and the PCB (12) is connected with the electromagnetic mechanism (11); the PCB (12) is provided with an embedded singlechip; and a zero sequence transformer (13) connected with the PCB (12) is arranged at the inlet wire interface (8).

2. The intelligent miniature circuit breaker according to claim 1, wherein said electromagnetic mechanism (11) comprises an iron core, a coil wound around the iron core, and a plunger disposed in the middle of the iron core, said plunger being connected to said second mechanical locking assembly (10).

3. The intelligent miniature circuit breaker according to claim 1 wherein a current transformer (14) is disposed within said housing (1), said current transformer (14) being attached to a PCB board (12).

4. The intelligent miniature circuit breaker of claim 1 wherein a temperature sensor is disposed within said housing (1), said temperature sensor being attached to a PCB board (12).

5. The intelligent miniature circuit breaker according to claim 1, wherein a hall sensor (15) is provided on said operating handle assembly (3), said hall sensor (15) being attached to said PCB board (12).

6. The intelligent miniature circuit breaker of claim 1 wherein a wired network connection, a wireless network connection and a bluetooth connection are provided on said PCB board (12).

7. The intelligent miniature circuit breaker according to claim 6, wherein a light guide button (16) is disposed on said housing (1), said light guide button (16) is connected to said PCB (12) for resetting the equipment and manually distributing the network, and has the functions of indicating voltage abnormality and indicating power supply.

8. The intelligent miniature circuit breaker of claim 1 wherein said PCB board (12) is powered by an external power source.