CN210490544U

CN210490544U - Circuit breaker

Info

Publication number: CN210490544U
Application number: CN201921774013.9U
Authority: CN
Inventors: 谢建波; 蒋爱贤; 黄银芳
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-05-08
Anticipated expiration: 2029-10-21

Abstract

The utility model provides a circuit breaker relates to electrical equipment technical field. The circuit breaker includes: the device comprises a controller, a first detection end, a second detection end, a public detection end and an actuating mechanism; the first detection end, the second detection end, the public detection end and the execution mechanism are electrically connected with the controller; the first detection end and the public detection end are used for detecting the main voltage of the main power supply, and the second detection end and the public detection end are used for detecting the standby voltage of the standby power supply; if the main voltage and the standby voltage do not meet the preset switching-on condition, the circuit breaker power supply wiring error is determined, the execution mechanism is controlled to be in the locking state, the circuit breaker is enabled to keep the switching-off state, the phenomenon that the main power supply, the standby power supply, the circuit breaker or load equipment connected with the circuit breaker is damaged due to the fact that the circuit breaker is switched to the switching-on state is avoided, and the safety of the main power supply, the standby power supply, the circuit breaker and the load equipment is improved.

Description

Circuit breaker

Technical Field

The utility model relates to an electrical equipment technical field particularly, relates to a circuit breaker.

Background

With the continuous development of electrical equipment, the electrical equipment can be supplied with power through a multi-power supply system, the multi-power supply system can comprise a main power supply and a standby power supply, and in the case of an abnormal main power supply, the electrical equipment can be supplied with power through the standby power supply.

In the related art, an electrical device may be connected to a multi power supply system through a circuit breaker so that the multi power supply system may supply power to the electrical device through the circuit breaker. In the process of configuring a multi-power system for an electrical device, a power cable needs to be connected according to the positive and negative electrodes of a main power supply and a standby power supply in the multi-power system, so that the electrical device can be supplied with power through the multi-power system after being connected with a power cable.

However, in the process of connecting the power cable, the power cable may be mistakenly connected with the positive and negative electrodes of the main power supply, which may cause damage to a multi-power system or electrical equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit breaker to the not enough among the above-mentioned prior art to solve the problem of many power systems or the electrical equipment damage that arouse by the wiring mistake.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, an embodiment of the present invention provides a circuit breaker, the circuit breaker includes: the device comprises a controller, a first detection end, a second detection end, a public detection end and an actuating mechanism;

the first detection end, the second detection end, the common detection end and the actuating mechanism are all electrically connected with the controller;

the first detection end and the common detection end are used for detecting main voltage between two ends of a main power supply, and the second detection end and the common detection end are used for detecting standby voltage between two ends of a standby power supply;

the controller is used for determining that the circuit breaker has a power supply wiring error if the main voltage and the standby voltage do not meet preset switching-on conditions, and controlling the actuating mechanism to be in a locking state so that the circuit breaker keeps a switching-off state.

Optionally, the circuit breaker further includes: the circuit breaker comprises a plug interface and a connection port, wherein the plug interface is connected with a main power supply, the connection port is connected with a standby power supply, and when the circuit breaker is in a closing state, the plug interface is also connected with the connection port.

Optionally, the plug interface is connected to the first detection end, the connection port is connected to the second detection end, and the plug interface and the connection port are connected to the common detection end respectively.

Optionally, the circuit breaker further includes: the communication interface is used for connecting the controller and a power distribution system;

the controller is further used for receiving a control switching instruction sent by the power distribution system through the communication interface and switching the circuit breaker to a closing state or an opening state according to the control switching instruction.

Optionally, the circuit breaker further includes: the control key is connected with the controller;

the control key is used for detecting a triggered control switching action;

the controller is used for controlling the circuit breaker to be switched to a closing state or an opening state according to the control switching action detected by the control key.

Optionally, the actuating mechanism includes a coil, and the circuit breaker is driven to switch to a closing state or an opening state by the movement of the coil in a magnetic field;

or the actuating mechanism comprises a motor, and the breaker is driven to be switched to a closing state or a breaking state through the movement of the motor.

Optionally, the closing condition includes at least one of the following conditions:

the difference between the primary voltage and the secondary voltage is less than or equal to a voltage threshold;

the voltage polarity of the main power supply and the voltage polarity of the standby power supply are the same.

The utility model has the advantages that:

the circuit breaker that this application embodiment provided, through setting up the first sense terminal of being connected with the controller, second sense terminal and public sense terminal, can detect the main voltage between the main power supply both ends, and the reserve voltage between the reserve power supply both ends, and confirm whether main voltage and reserve voltage satisfy predetermined combined floodgate condition, if unsatisfied combined floodgate condition, then confirm that the circuit breaker has power wiring mistake, the actuating mechanism adjustment that will be connected with the controller is locking state, make the circuit breaker keep the separating brake state, avoided switching the circuit breaker to the combined floodgate state and leaded to the main power supply, the reserve power supply, the circuit breaker or the load equipment damage of being connected with the circuit breaker, the main power supply has been improved, the reserve power supply, the security of circuit breaker and load equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a circuit breaker according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a circuit breaker according to another embodiment of the present invention;

fig. 4 is a schematic flow chart of a circuit breaker control method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a controller according to an embodiment of the present invention.

Icon: 101-a controller; 102-a first detection terminal; 103-a second detection end; 104-common detection terminal; 105-an actuator; 110-a communication interface; 111-control keys.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Fig. 1 is a schematic structural diagram of a circuit breaker according to an embodiment of the present invention, as shown in fig. 1, the circuit breaker may include: the device comprises a controller 101, a first detection terminal 102, a second detection terminal 103, a common detection terminal 104 and an actuator 105.

The first detection terminal 102, the second detection terminal 103, the common detection terminal 104 and the actuator 105 are all electrically connected to the controller 101.

In order to avoid the damage of the circuit breaker caused by the wiring error, before the circuit breaker is switched to the closing state, the judgment can be carried out according to the phase and voltage difference value of the main power supply and the standby power supply in the circuit breaker, whether the condition of the wiring error exists is determined, whether the circuit breaker can be switched to the closing state is determined according to the judgment result, and then the damage of the circuit breaker caused by the wiring error is avoided.

Accordingly, in determining whether the circuit breaker has a wiring error, the first sensing terminal 102 and the common sensing terminal 104 may be used to sense a main voltage between both ends of the main power source, and the second sensing terminal 103 and the common sensing terminal 104 may be used to sense a standby voltage between both ends of the standby power source.

In an alternative embodiment, the controller 101 may calculate a difference between the two potentials according to the potential detected by the first detection terminal 102 and the potential detected by the common detection terminal 104, so that the difference may be used as the main voltage between the two terminals of the main power supply. Similarly, the controller 101 may further calculate a standby voltage between two ends of the standby power according to the potentials detected by the second detection terminal 103 and the common detection terminal 104.

The common detection terminal 104 may be a ground potential or other potentials, and the potential of the common detection terminal 104 is not limited in this embodiment of the application.

Correspondingly, after determining the main voltage and the standby voltage, the controller 101 may determine whether there is a wiring error of the circuit breaker according to the main voltage and the standby voltage, so as to perform different operations according to the determination result. That is, the controller 101 is configured to determine that a power connection error exists in the circuit breaker if the main voltage and the standby voltage do not satisfy the preset closing condition, and control the actuator 105 to be in a locked state, so that the circuit breaker maintains an open state.

Wherein the closing condition may include at least one of the following conditions: the difference between the primary voltage and the backup voltage is less than or equal to a voltage threshold; the voltage polarity of the main power supply and the standby power supply is the same.

Correspondingly, in the process of determining whether the circuit breaker has a power connection error, the controller 101 may first calculate a voltage difference between the main voltage and the standby voltage, and then compare the voltage difference with a voltage threshold. If the voltage difference is smaller than or equal to the voltage threshold, it is indicated that the circuit breaker has no wiring error, the current main voltage and the standby voltage meet the closing condition, and the circuit breaker can be switched from the opening state to the closing state in the current state.

However, if the voltage difference is greater than the voltage threshold, it may be determined again whether the phase polarities of the voltages of the main power supply and the backup power supply are reversed, that is, whether the positive and negative of the calculated main voltage and the backup voltage are the same, and if the calculated main voltage is a positive number according to the potential detected by the first detection terminal 102 and the potential detected by the common detection terminal 104, and the backup voltage is a negative number according to the potential detected by the second detection terminal 103 and the potential detected by the common detection terminal 104, it may be determined that the circuit breaker has a wiring error, which indicates that the current main voltage and the backup voltage do not satisfy the closing condition.

It should be noted that, in practical applications, the first detection end 102 may be a moving contact detection end, which facilitates detection of the potential of the main power source when the circuit breaker is in different states, such as an open state and a close state, and the second detection end 103 may be a static contact detection end, which may detect the potential of the standby power source at any time.

In addition, the actuator 105 may include a coil, and the movement of the coil in the magnetic field drives the circuit breaker to switch to the closing state or the opening state. That is, when the circuit breaker is switched to the open state or the close state, the coil located in the magnetic field may move according to the principle of electromagnetic induction, so as to drive the circuit breaker to switch the states.

Alternatively, the actuator 105 may include a motor, and the movement of the motor drives the circuit breaker to switch to the closing state or the opening state. Similar to the coil, the circuit breaker can also be switched to an open state or a closed state during the rotation of the motor.

To sum up, the circuit breaker that this application embodiment provided, through setting up the first sense terminal, second sense terminal and the public sense terminal of being connected with the controller, can detect the main voltage between the main power supply both ends, and the reserve voltage between the reserve power supply both ends, and confirm whether main voltage and reserve voltage satisfy predetermined combined floodgate condition, if do not satisfy combined floodgate condition, then confirm that the circuit breaker has power wiring mistake, the actuating mechanism adjustment that will be connected with the controller is locking state, make the circuit breaker keep the separating brake state, avoided switching the circuit breaker to combined floodgate state and lead to the main power supply, reserve power supply, the damage of circuit breaker or the load equipment who is connected with the circuit breaker, the security of main power supply, reserve power supply, circuit breaker and load equipment has been improved.

In an alternative embodiment, the circuit breaker further comprises: the circuit breaker comprises a plug interface and a connection port, wherein the plug interface is connected with a main power supply, the connection port is connected with a standby power supply, and when the circuit breaker is in a closing state, the plug interface is also connected with the connection port.

When the circuit breaker is in a closing state, the plugging interface is also connected with the connecting port, so that the main power supply can charge the standby power supply when the circuit breaker is in the closing state.

It should be noted that the plug interface may include one or more plug sub-interfaces, for example, two plug sub-interfaces corresponding to the live line and the neutral line (or the positive electrode and the negative electrode), respectively, and the similar connection port may include one or more connection sub-ports, for example, two connection sub-ports corresponding to the live line and the neutral line (or the positive electrode and the negative electrode), respectively.

In an alternative embodiment, the plug interface is connected to the first detection terminal 102, the connection port is connected to the second detection terminal 103, and the plug interface and the connection port are respectively connected to the common detection terminal 104.

Since the plug interface and the connection port are respectively connected to the common detection terminal 104, the plug interface is connected to the first detection terminal 102, and the main voltage of the main power supply can be determined according to the difference between the potential of the first detection terminal 102 and the potential of the common detection terminal 104, and similarly, the connection port is connected to the second detection terminal 103, and the standby voltage of the standby power supply can be determined according to the difference between the potential of the second detection terminal 103 and the potential of the common detection terminal 104.

In an alternative embodiment, referring to fig. 2, the circuit breaker may further comprise: a communication interface 110.

The breaker can not only carry out the separating brake operation when detecting circuit anomaly, but also can switch the state of the breaker according to the instruction of power distribution system regulation and control. Therefore, the circuit breaker may include a communication interface 110, so as to receive a control switching command sent by the power distribution equipment through the communication interface 110, and thus switch the circuit breaker to an opening state or a closing state according to the control switching command.

The communication interface 110 is used to connect the controller 101 and the power distribution system, and correspondingly, the controller 101 may also be used to receive a control switching instruction sent by the power distribution system through the communication interface 110, and switch the circuit breaker to a closing state or an opening state according to the control switching instruction.

For example, after receiving a control switching command sent by the power distribution system through the communication interface 110, the controller 101 of the circuit breaker may control the actuator 105 to operate according to the control switching command, so as to switch the circuit breaker to the open state or the closed state.

In an alternative embodiment, referring to fig. 3, the circuit breaker may further comprise: control buttons 111.

The control key 111 is connected to the controller 101.

Correspondingly, the control key 111 is used for detecting the triggered control switching action; the controller 101 is configured to control the circuit breaker to switch to a closing state or an opening state according to a control switching action detected by the control button 111.

For example, in the process of switching the state of the circuit breaker according to the control key 111, a control switching operation triggered by a user may be detected by the control key 111, and if the control switching operation is detected and the control switching operation may be transmitted to the controller 101, the controller 101 may generate a state switching instruction according to the control switching operation, and then control the actuator 105 to switch the state of the circuit breaker according to the state switching instruction.

Fig. 4 is a schematic flowchart of a circuit breaker control method according to an embodiment of the present invention, as shown in fig. 4, and the method is applied to a circuit breaker or a controller of the circuit breaker shown in any one of fig. 1 to 3, and can be implemented by the controller in the circuit breaker, and the method can include:

step 401, obtaining a main voltage between two ends of a main power supply and a standby voltage between two ends of a standby power supply.

In order to avoid damage of the circuit breaker caused by wrong wiring of a multi-power-supply system, before the circuit breaker is switched on, the wiring of the circuit breaker can be detected, whether the circuit breaker has wrong wiring or not is determined, and whether the circuit breaker can be switched to a switching-on state at present is determined according to a judgment result.

In the process of determining whether the circuit breaker has the wiring error, the main voltage corresponding to the main power supply and the standby voltage corresponding to the standby power supply can be respectively determined according to the main power supply and the standby power supply connected with the circuit breaker, so that whether the circuit breaker has the wiring error can be determined according to the main voltage and the standby voltage in the subsequent steps.

In an optional embodiment, the controller of the circuit breaker may obtain the potentials at the two ends of the main power supply and the two ends of the standby power supply through the first detection end, the second detection end and the common detection end, calculate to obtain the main voltage according to the potential difference between the first detection end and the common detection end, and calculate to obtain the standby voltage according to the potential difference between the second detection end and the common detection end.

It should be noted that the calculated main voltage and the standby voltage are vectors, that is, the main voltage and the standby voltage have directivity. For example, if the potential detected by the first detection terminal is higher than the potential detected by the common detection terminal, the calculated main voltage is a positive number, but if the potential detected by the second detection terminal is lower than the potential detected by the common detection terminal, the potential detected by the common detection terminal is subtracted from the potential detected by the second detection terminal, and the obtained standby voltage is a negative number.

Step 402, determining whether the breaker meets a preset closing condition according to the main voltage and the standby voltage.

Wherein, the closing condition may include at least one of the following conditions: the difference between the primary voltage and the backup voltage is less than or equal to a voltage threshold; the voltage polarity of the main power supply and the standby power supply is the same.

After the main voltage and the standby voltage are determined, the controller of the circuit breaker can determine whether the circuit breaker has a wiring error, that is, whether the circuit breaker meets a closing condition is determined, so that in the subsequent step, whether the circuit breaker can be switched to a closing state or not can be determined according to the determination result.

In an optional embodiment, the controller may calculate according to the main voltage and the standby voltage to obtain a voltage difference between the main voltage and the standby voltage, compare the voltage difference with a preset voltage threshold, and if the voltage difference is smaller than or equal to the voltage threshold, indicate that the circuit breaker satisfies the closing condition, that is, the circuit breaker does not have a wiring error.

However, if the voltage difference is greater than the voltage threshold, it may be determined that the circuit breaker may have a wiring error, and accordingly, the directions of the main voltage and the backup voltage may be compared, that is, the voltage polarities of the main power source and the backup power source are compared, and if one of the main voltage and the backup voltage is a positive number and the other is a negative number, it may be determined that the circuit breaker does not satisfy a preset closing condition, that is, the circuit breaker has a wiring error.

And 403, if the circuit breaker does not meet the closing condition, locking the circuit breaker in an opening state, and forbidding the circuit breaker to be switched to a closing state.

If the circuit breaker is determined not to meet the preset closing condition, the current situation of wiring error of the circuit breaker is indicated, the circuit breaker cannot be closed, and the circuit breaker needs to be kept in an opening state, so that the damage of the circuit breaker is avoided.

In an optional embodiment, if the controller determines that the circuit breaker does not satisfy the switching-on condition, the controller may lock an actuator of the circuit breaker to ensure that the actuator does not perform an operation of switching a state of the circuit breaker, so that the circuit breaker cannot be switched from a current switching-off state to a switching-on state, and the circuit breaker is continuously in the switching-off state.

It should be noted that, when it is determined that the circuit breaker does not satisfy the closing condition and the circuit breaker has a wiring error, an alarm may be given to a user to remind the user that the circuit breaker has the problem of the current wiring error. Wherein, can remind distribution equipment through the communication interface of circuit breaker, also can remind through the circuit breaker, this application embodiment does not do the restriction to this.

In summary, according to the circuit breaker control method provided by the embodiment of the application, whether the circuit breaker meets the preset switching-on condition is determined by acquiring the main voltage between the two ends of the main power supply and the standby voltage between the two ends of the standby power supply, and if the circuit breaker does not meet the switching-on condition, the circuit breaker is locked to be in the switching-off state, and the circuit breaker is prohibited from being switched to the switching-on state. Through obtaining main voltage and reserve voltage, and calculate according to main voltage and reserve voltage, confirm whether the circuit breaker satisfies the combined floodgate condition, if unsatisfied, then keep the separating brake state of circuit breaker, switch over to the combined floodgate state under the condition of avoiding the circuit breaker to have wiring mistake and cause the damage, the security of circuit breaker has been improved, avoided switching over the circuit breaker to the combined floodgate state and leaded to damaging main power supply, reserve power supply, circuit breaker or the load equipment who is connected with the circuit breaker, the security of main power supply, reserve power supply, circuit breaker and load equipment has been improved.

It should be noted that, in practical applications, in the normal operation process of the circuit breaker, the circuit breaker may be switched to the closing state or the opening state according to a control switching instruction or a control switching operation received by the circuit breaker.

Optionally, the circuit breaker may receive a control switching instruction sent by a power distribution system connected to the circuit breaker, or respond to a control switching operation triggered by a control button, and switch the circuit breaker to a closing state or an opening state according to the control switching instruction or the control switching operation.

In an optional embodiment, the circuit breaker may receive a control switching instruction triggered by a user or power distribution equipment, and obtain a current state of the circuit breaker, and if the circuit breaker is currently in a closing state, the circuit breaker may be switched to an opening state according to the control switching instruction.

However, if the circuit breaker is in the open state, it is necessary to determine whether the circuit breaker satisfies a preset closing condition, and if the circuit breaker satisfies the closing condition, the circuit breaker may be switched from the open state to the closed state.

Similarly, the circuit breaker can also be controlled to be switched to an opening state or a closing state according to the control switching operation detected by the control key.

In an optional embodiment, if the power distribution system detects that there is an abnormality in the circuit system or the abnormality in the circuit system has recovered, a control switching instruction may be sent to the circuit breaker to switch the open state or the closed state of the circuit breaker, so as to power off or supply power to a load connected to the circuit breaker.

Similarly, if the staff begins to overhaul the circuit system, or the overhaul of the circuit system is completed, the control key of the circuit breaker can be triggered to control the switching operation, and the circuit breaker can complete the switching of the state of the circuit breaker according to the control switching operation.

Furthermore, during the process of supplying power to the load equipment connected with the circuit breaker through the main power supply, the circuit information of the main power supply can be monitored and recorded, so that the operation state of the main power supply can be determined during the process of maintaining the circuit system.

Optionally, if the load device connected to the circuit breaker is powered by the main power supply, the circuit breaker may acquire circuit information of the main power supply, and send the circuit information to a power distribution system connected to the circuit breaker, so as to record the circuit information through the power distribution system.

Wherein the circuit information is used for indicating the state of the main power supply, and the circuit information may include: at least one of power supply ripple, harmonics, and power supply voltage fluctuation information.

In an optional embodiment, if the load device is powered by the main power supply, the circuit information of the main power supply may be acquired by the controller of the circuit breaker, and the acquired circuit information may be sent to the power distribution system through the communication interface of the circuit breaker.

In addition, if the main power supply is abnormal, the load equipment can be supplied with power through the standby power supply, the standby power supply can be a standby battery, the service life of the standby battery can be detected in the power supply process through the standby power supply, so that the standby battery can be replaced in time when the service life of the standby battery is short, and the normal work of the circuit breaker is ensured.

Optionally, if the load device connected to the circuit breaker is powered by the backup battery, the circuit breaker may obtain a voltage variation of the backup battery within a preset time period, and determine the service life of the backup battery according to the voltage variation and a preset voltage variation set in advance.

In an optional embodiment, the circuit breaker may periodically detect the standby voltage of the standby battery through the second detection terminal and the common detection terminal, determine a voltage variation of the standby battery within a preset time according to the periodically detected standby voltage, and compare the voltage variation with the preset voltage variation.

If the voltage variation is smaller than the preset voltage variation, the standby battery is normal and has long service life; however, if the voltage variation is greater than or equal to the preset voltage variation, this indicates that the backup battery is abnormal, and the amount of electricity that can be stored in the backup battery may be low, resulting in a short service life of the backup battery.

It should be noted that, in practical applications, a voltage variation curve of the backup battery may be obtained by drawing according to the periodically detected backup voltage, and the voltage variation curve may be compared with a preset damage curve, so as to determine the service life of the backup battery.

Fig. 5 is a schematic structural diagram of a controller according to an embodiment of the present invention, where the controller may be a device having a data processing function, such as an MCU (micro controller Unit), and the controller may be a computing device having a circuit breaker control function.

The controller includes: a processor 501, a storage medium 502, and a bus 503.

The storage medium 502 stores machine-readable instructions executable by the processor 501, and when the controller is running, the processor 501 communicates with the storage medium 502 via the bus 503, and the processor 501 executes the machine-readable instructions to perform the above-mentioned method embodiments. The specific implementation and technical effects are similar, and are not described herein again.

Optionally, the present invention further provides a computer readable storage medium having a computer program stored thereon, the computer program, when executed by a processor, performs the above method embodiments.

In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (english: processor) to execute some steps of the method according to various embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A circuit breaker, characterized in that the circuit breaker comprises: the device comprises a controller, a first detection end, a second detection end, a public detection end and an actuating mechanism;

2. The circuit breaker of claim 1, wherein the circuit breaker further comprises: the circuit breaker comprises a plug interface and a connection port, wherein the plug interface is connected with a main power supply, the connection port is connected with a standby power supply, and when the circuit breaker is in a closing state, the plug interface is also connected with the connection port.

3. The circuit breaker according to claim 2, wherein the plug interface is connected to the first detection terminal, the connection port is connected to the second detection terminal, and the plug interface and the connection port are respectively connected to the common detection terminal.

4. The circuit breaker of claim 1, wherein the circuit breaker further comprises: the communication interface is used for connecting the controller and a power distribution system;

5. The circuit breaker of claim 1, wherein the circuit breaker further comprises: the control key is connected with the controller;

the control key is used for detecting a triggered control switching action;

6. The circuit breaker according to any one of claims 1 to 5, characterized in that the actuator comprises a coil, and the circuit breaker is driven to switch to a closing state or an opening state by the movement of the coil in a magnetic field;

7. The circuit breaker according to any of claims 1 to 5, characterized in that said closing condition comprises at least one of the following conditions: