Control circuit for breaking control, tripping device and circuit breaker

Abstract

The utility model provides a control circuit for breaking control, a tripping device and a circuit breaker, and relates to the technical field of electrics. The control circuit for breaking control is arranged in a tripping device and comprises a power supply input end, a signal input end, a signal acquisition unit, a control unit and a driving unit, wherein the power input end is connected with one end of the driving unit, the other end of the driving unit is used for being connected with a wiring end of an electromagnetic mechanism in the tripping device, the power input end is further connected with the signal input end through the preset switch unit, the signal input end is connected with the control unit, and the control unit is connected with a control end of the driving unit. Therefore, the working voltage establishment time and the initialization time in the control circuit for breaking control can be saved, and rapid breaking of the tripping device is further realized.

Description

Technical Field

[0001] The present application relates to the field of electrical technology, and in particular to a control circuit, a tripping device and a circuit breaker for disconnection control. Background Art

[0002] A circuit breaker is a switching device that can connect and disconnect normal load current, and can disconnect short-circuit current and overload current (collectively referred to as fault current). It mainly plays the role of short-circuit and overload protection in the circuit, and sometimes also has functions such as undervoltage protection and remote power disconnection. Among them, the trip device is an important part of the circuit breaker, which is used to realize the remote opening and closing functions of the circuit breaker.

[0003] If a circuit or device requires emergency power outage or power failure, the commonly used method is to set a preset switch unit on the input power supply end. According to the preset switch unit, the trip device is controlled to be powered on, the coil generates magnetic force, and the mechanical actuator is driven to operate, thereby realizing the disconnection control function of the trip device.

[0004] However, since the control circuit of the trip device in the prior art is controlled by a control unit, the process from when the trip device receives the working voltage to when it performs the disconnection action is relatively long, resulting in a long disconnection time for the trip device, making it difficult to achieve rapid disconnection of the trip device. Utility Model Content

[0005] The purpose of the present application is to provide a control circuit, a tripping device and a circuit breaker for disconnection control, which can save the working voltage establishment time and initialization time in the control circuit for disconnection control, thereby realizing rapid disconnection of the tripping device.

[0006] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0007] In a first aspect, an embodiment of the present application provides a control circuit for disconnection control, wherein the control circuit for disconnection control is arranged in a tripping device, and the control circuit for disconnection control comprises: a power input terminal, a signal input terminal, a signal acquisition unit, a control unit, and a drive unit;

[0008] Among them, the power input end is connected to one end of the driving unit, and the other end of the driving unit is used to connect to the wiring terminal of the electromagnetic mechanism in the tripping device. The power input end is also connected to the signal input end through a preset switch unit, and the signal input end is also connected to the control unit through the signal acquisition unit, and the control unit is connected to the control end of the driving unit.

[0009] Optionally, the control circuit for disconnection control further includes: a power supply sampling unit, wherein the power supply sampling unit is connected to the power input terminal, and the power supply sampling unit is also connected to the control unit.

[0010] Optionally, the control circuit for disconnection control further includes: a power supply unit, the power input end is also connected to the power supply unit, and the power supply unit is connected to the control unit and the drive unit.

[0011] Optionally, the power input terminal includes: a positive power terminal and a negative power terminal, and the positive power terminal or the negative power terminal is connected to the signal input terminal through the preset switch unit.

[0012] Optionally, the power input terminal is an AC input terminal, and the AC input terminal is connected to the signal input terminal through the preset switch unit.

[0013] Optionally, the preset switch unit is an output contact of a remote control unit, or an operation switch unit.

[0014] In a second aspect, an embodiment of the present application provides a tripping device, which includes: an electromagnetic mechanism, and a control circuit for disconnection control as described in any one of the first aspects above, wherein the connection terminal of the electromagnetic mechanism is connected to the other end of the driving unit in the control circuit for disconnection control.

[0015] Optionally, the control circuit for disconnection control is integrated on a preset circuit board.

[0016] Optionally, the electromagnetic mechanism includes: a coil and a mechanical actuator, the connection terminal of the coil is the connection terminal of the electromagnetic mechanism, and the coil is wound around the mechanical actuator.

[0017] In a third aspect, an embodiment of the present application provides a circuit breaker, the circuit breaker comprising at least: a tripping device as described in any one of the second aspects above.

[0018] The control circuit, tripping device and circuit breaker for breaking control provided by the present application have the following beneficial effects:

[0019] The present application provides a control circuit, a tripping device and a circuit breaker for disconnection control. The control circuit for disconnection control is arranged in the tripping device, and the control circuit for disconnection control includes: a power input terminal, a signal input terminal, a signal acquisition unit, a control unit and a driving unit; wherein the power input terminal is connected to one end of the driving unit, and the other end of the driving unit is used to connect to the connection terminal of the electromagnetic mechanism in the tripping device, and the power input terminal is also connected to the signal input terminal through a preset switch unit, the signal input terminal is connected to the control unit, and the control unit is connected to the control end of the driving unit. Therefore, the present application enables the control circuit for disconnection control to quickly detect the status signal of the preset switch unit through the signal input terminal and the signal acquisition unit, which can not only save the working voltage establishment time and initialization time in the control circuit for disconnection control, but also realize the rapid disconnection of the tripping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a circuit breaker provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of a tripping device provided in an embodiment of the present application Figure 1 ;

[0023] Figure 3 A schematic diagram of a tripping device provided in an embodiment of the present application Figure 2 ;

[0024] Figure 4 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 1 ;

[0025] Figure 5 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 2 ;

[0026] Figure 6 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 3 ;

[0027] Figure 7 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 4 ;

[0028] Figure 8 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 5 ;

[0029] Fig. 9 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 6 ;

[0030] Fig.10 A flow chart of a disconnection control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present application, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0036] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In order to better understand the various solutions provided in the embodiments of the present application, a control circuit, a tripping device and a circuit breaker for disconnection control provided in the embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0038] The circuit breaker provided in the embodiment of the present application is first described as follows with reference to the accompanying drawings. Figure 1 A schematic diagram of the structure of a circuit breaker provided in an embodiment of the present application. Figure 1 As shown, the circuit breaker 300 may at least include: a trip device 200 .

[0039] The circuit breaker 300 can remotely control the rapid disconnection of the tripping device in the event of an emergency stop or emergency power outage, thereby protecting the electrical safety of the circuit breaker 300 .

[0040] It should be noted that the circuit breaker 300 includes not only the trip device 200 but also other devices, such as a controller. That is, the controller in the circuit breaker 300 and the control unit of the trip device 200 are two independent control structures. In addition, it should be noted that the type of the trip device 200 can be selected according to actual conditions. For example, the type of the trip device 200 can be selected as a shunt trip device or an overvoltage / undervoltage trip device.

[0041] The present application provides a circuit breaker, which at least includes a trip device. Therefore, the present application can prevent the circuit breaker from being damaged in an emergency stop or emergency power off situation by controlling the rapid disconnection of the trip device, thereby improving the electrical safety of the circuit breaker.

[0042] The tripping device provided in the embodiments of the present application is described below with reference to the accompanying drawings. Figure 2 A schematic diagram of a tripping device provided in an embodiment of the present application Figure 1 .like Figure 2 As shown, the trip device 200 may include: an electromagnetic mechanism 210, and a control circuit 100 for disconnection control.

[0043] Among them, the connection terminal of the electromagnetic mechanism 210 is connected to the other end of the driving unit in the control circuit 100 for breaking control, and the control circuit 100 is used to drive the electromagnetic mechanism 210 to perform a breaking operation. If the control circuit 100 for breaking control drives the electromagnetic mechanism 210 to perform a breaking operation, it can further promote the action of the circuit breaker, that is, the circuit breaker is opened.

[0044] The present application provides a tripping device, which includes an electromagnetic mechanism and a control circuit for disconnection control, wherein the connection terminal of the electromagnetic mechanism is connected to the other end of a driving unit in the control circuit for disconnection control. Thus, the present application can drive the electromagnetic mechanism to perform a disconnection operation, realize the subsequent action of the circuit breaker, and improve the electrical safety of the circuit breaker and the tripping device.

[0045] Optionally, in one possible implementation, continue to combine Figure 2 The control circuit 100 for disconnection control can be integrated on a preset circuit board. The preset circuit board can be selected according to actual conditions, for example, the preset circuit board can be selected as a PCB board.

[0046] Furthermore, in order to clearly describe the tripping device 200 provided in the above embodiment, the present application also provides a structural schematic diagram of an electromagnetic mechanism 210. Figure 3 A schematic diagram of a tripping device provided in an embodiment of the present application Figure 2 .like Figure 3 As shown, the electromagnetic mechanism 210 may include: a coil 211 and a mechanical actuator 212 .

[0047] Among them, the connection terminal of the coil 211 is the connection terminal of the electromagnetic mechanism 210, which is used to connect with the control circuit 100 so as to provide an electrical signal to the coil 211 through the control circuit 100 for disconnection control, so as to generate magnetic force. Since the coil 211 is wound around the mechanical actuator 212, the mechanical actuator 212 can be driven by the magnetic force generated by the coil 211 to realize the disconnection function of the tripping device 200.

[0048] The tripping device provided by the present application, wherein the electromagnetic mechanism includes: a coil and a mechanical actuator, the connection terminal of the coil is the connection terminal of the electromagnetic mechanism, and the coil is wound around the mechanical actuator. Therefore, the present application provides an electrical signal to the coil through a control circuit to generate magnetic force, drive the mechanical actuator to move, and then realize the disconnection function of the tripping device.

[0049] The control circuit for disconnection control provided in the embodiments of the present application is described below with reference to the accompanying drawings. Figure 4 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 1 .like Figure 4As shown, the control circuit 100 for breaking control may include: power input terminals A1A2, a signal input terminal A3, a signal acquisition unit 110, a control unit 120 and a drive unit 130.

[0050] The control circuit 100 for disconnection control may be provided in the tripping device, and is used to control the disconnection of the tripping device 200 .

[0051] Among them, the power input terminal A1A2 is connected to one end of the driving unit 130, which is used to provide the driving unit 130 with an operating electrical signal; the other end of the driving unit 130 is used to connect to the wiring terminal of the electromagnetic mechanism 210 in the tripping device, which is used to drive the electromagnetic mechanism 210 to operate, and then drive the tripping device 200 to operate, thereby realizing the opening operation of the tripping device 200, and then realizing the opening operation of the circuit breaker 300.

[0052] The power input terminal A1A2 is also connected to the signal input terminal A3 through the preset switch unit BE, and the signal input terminal A3 is also connected to the control unit 120 through the signal acquisition unit 110, which is used to collect the state signal of the preset switch unit BE and send the state signal to the control unit 120; the control unit 120 is connected to the control end of the drive unit 130, which is used to control the drive unit 130 to work. Among them, the preset switch unit BE can be selected according to actual conditions. Among them, A1 in the power input terminal A1A2 represents the negative end of the power input; A2 represents the positive end of the power input.

[0053] Among them, the signal acquisition unit 110 is used to collect and process the status signal of the preset switch unit BE; the control unit 120 is used as a control center to perform logic identification based on the collected input signal to determine whether to drive the output. The control unit 120 can be selected according to actual conditions. For example, the control unit 120 can be selected as an MCU. The drive unit 130 is used to receive action commands from the control unit 120, and drive the coil in the electromagnetic mechanism to generate magnetic force and drive the mechanical actuator to move. The drive unit 130 can be selected according to actual conditions. For example, the drive unit 130 can be selected as a thyristor, or a triode, etc., which is not limited here.

[0054] It should be noted that the power input terminal A1A2 needs to be connected to a power supply that meets the preset specification requirements, so as to establish the working power supply of the control circuit 100 for disconnection control, wherein the power supply of the preset specification requirements can be selected according to the actual situation, and the power supply of the preset direct current (DC) specification requirements or the power supply of the preset alternating current (AC) specification requirements can be selected. In addition, it should be noted that the power input terminal A1A2 in the control unit 100 provided in the present application needs to maintain a continuous power supply state to ensure that the control unit 120 in the control unit 100 can operate.

[0055] The present application provides a control circuit for disconnection control. The control circuit for disconnection control is arranged in a tripping device, and the control circuit for disconnection control includes: a power input terminal, a signal input terminal, a signal acquisition unit, a control unit, and a driving unit; wherein the power input terminal is connected to one end of the driving unit, and the other end of the driving unit is used to connect to the terminal of the electromagnetic mechanism in the tripping device, and the power input terminal is also connected to the signal input terminal through a preset switch unit, and the signal input terminal is connected to the control unit, and the control unit is connected to the control end of the driving unit. Therefore, the present application enables the control circuit for disconnection control to quickly detect the status signal of the preset switch unit through the signal input terminal and the signal acquisition unit, which can not only save the working voltage establishment time and initialization time in the control circuit for disconnection control, but also realize the rapid disconnection of the tripping device.

[0056] exist Figure 4 On this basis, the control circuit 100 for breaking control is further described with reference to examples as follows. Figure 5 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 2 .like Figure 5 As shown, the control circuit 100 for breaking control may further include: a power supply sampling unit 140 .

[0057] The power supply sampling unit 140 is connected to the power supply input terminal A1A2 and is also connected to the control unit 120 for collecting and processing input electrical signals of the power supply input terminal A1A2 and sending the collected electrical signals to the control unit 120 .

[0058] It should be noted that the sampled electrical signal received by the control unit 120 must satisfy a preset minimum voltage threshold that is greater than or equal to the preset minimum voltage threshold, and the preset minimum voltage threshold can also be selected according to actual conditions. For example, the preset minimum voltage threshold can be selected as 70% of the power supply required by the preset specifications.

[0059] The control circuit for disconnection control provided by the present application further includes: a power supply sampling unit, the power supply sampling unit is connected to the power supply input end, and the power supply sampling unit is also connected to the control unit. Therefore, the present application can realize real-time acquisition of the electrical signal of the power supply input end through the power supply sampling unit to ensure the operation of the control circuit for disconnection control.

[0060] exist Figure 4 On this basis, the control circuit 100 for breaking control is further described with reference to examples as follows. Figure 6 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 3 .like Figure 6As shown, the control circuit 100 for breaking control may further include: a power supply unit 150 .

[0061] The power input terminal A1A2 is also connected to the power supply unit 150 , and the power supply unit 150 is connected to the control unit 120 and the driving unit 130 , and is used to provide the control unit 120 and the driving unit 130 with electrical signals for normal operation.

[0062] It should be noted that if the power input terminal A1A2 is a DC signal, the power supply unit 150 is a DC constant voltage power supply. If the power input terminal A1A2 is an AC signal, the power supply unit 150 includes a rectifier circuit for converting the AC signal into a DC signal.

[0063] The control circuit for disconnection control provided by the present application further includes: a power supply unit, the power input end is also connected to the power supply unit, and the power supply unit is connected to the control unit and the drive unit. Therefore, the present application can save the working voltage establishment time and initialization time in the control circuit for disconnection control, thereby realizing the rapid disconnection of the tripping device.

[0064] exist Figure 4 On this basis, the control circuit 100 for breaking control is further described with reference to examples as follows. Figure 7 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 4 .like Figure 7 As shown, the power input terminal A1A2 may include: a positive power terminal DC+ and a negative power terminal DC-.

[0065] The positive power supply terminal DC+ can be connected to the signal input terminal A3 through a preset switch unit BE.

[0066] In one possible implementation, Figure 8 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 5 .like Figure 8 As shown, the negative power supply terminal DC- is connected to the signal input terminal A3 through a preset switch unit BE.

[0067] That is, the signal input terminal A3 of the control circuit for disconnection control in the present application can be connected to any one of the positive power terminal DC+ and the negative power terminal DC- in the power input terminals A1A2 through the preset switch unit BE, without distinguishing between the positive power terminal DC+ and the negative power terminal DC-. This should not be understood as a limitation to the present application.

[0068] It should be noted that the power input terminal A1A2 in the above embodiment may include a positive power terminal DC+ and a negative power terminal DC-, indicating that the control circuit for disconnection control can be used for DC input, but it should not be understood as a limitation to the present application.

[0069] The present application provides a control circuit for disconnection control, wherein the power input terminal includes: a positive power terminal and a negative power terminal, and the positive power terminal or the negative power terminal is connected to the signal input terminal through a preset switch unit. Therefore, the present application can enable the control circuit for disconnection control to quickly detect the state signal of the preset switch unit BE through the signal input terminal, which can not only save the working voltage establishment time and initialization time in the control circuit for disconnection control, but also realize the rapid disconnection of the tripping device.

[0070] exist Figure 4 On this basis, the control circuit 100 for breaking control is further described with reference to examples as follows. Fig. 9 A schematic diagram of a control circuit for disconnection control provided in an embodiment of the present application Figure 6 .like Fig. 9 As shown, the power input terminal A1A2 can be an alternating current input terminal AC.

[0071] The AC input terminal AC may be a three-phase AC input terminal or a unidirectional AC input terminal, which is not limited here.

[0072] The AC input terminal AC can be connected to the signal input terminal A3 through a preset switch unit.

[0073] The present application provides a control circuit for disconnection control, wherein the power input terminal includes: a neutral terminal and a live terminal, and the neutral terminal and the live terminal are connected to the signal input terminal through a preset switch unit. Therefore, the present application can enable the control circuit for disconnection control to quickly detect the state signal of the preset switch unit BE through the signal input terminal, which can not only save the working voltage establishment time and initialization time in the control circuit for disconnection control, but also realize the rapid disconnection of the tripping device.

[0074] Optionally, in a possible embodiment, the preset switch unit BE is an output contact of a remote control unit, or an operating switch unit.

[0075] The output contacts of the remote control unit may be output contacts of a PLC (Programmable Logic Controller); the operation switch unit may be selected according to actual conditions, for example, the operation switch unit may be selected as a button switch unit.

[0076] It should be noted that, in order to realize remote control of the trip device 200, the output end of the DO output unit may be connected to one end of the preset switch unit BE, so that the user can operate at the input end of the DO output unit.

[0077] To facilitate understanding of the control circuit, tripping device and circuit breaker for disconnection control, the embodiment of the present application further provides an example of a process for a disconnection control method, which will be described in conjunction with the accompanying drawings as follows: Fig.10 A flow chart of a disconnection control method provided in an embodiment of the present application. Fig.10 As shown, the execution subject of the breaking control method provided in the embodiment of the present application is the control unit 120, and the breaking control method may include:

[0078] S401, collecting and acquiring the electrical signal of the power input terminal and the status signal of the preset switch unit in real time.

[0079] Specifically, the control unit 120 collects the electrical signal of the power input terminal through the power sampling unit 140 , and at the same time, the control unit 120 collects the state signal of the preset switch unit BE through the signal collection unit 110 .

[0080] It should be noted that the control circuit 100 for disconnection control provided in the present application needs to be in a state where the power input terminals A1A2 are continuously powered.

[0081] S402, determine whether the electrical signal collected from the power input terminal is greater than or equal to a preset minimum voltage threshold, and at the same time, collect whether the state signal of the preset switch unit is closed. If yes, execute step S403; if no, return to step S401.

[0082] Specifically, the control unit 120 needs to determine whether the electrical signal at the power input terminal is greater than or equal to a preset minimum voltage threshold, and at the same time, whether the state signal of the preset switch unit BE is closed, thereby controlling the output of the control unit 120 .

[0083] It should be noted that the control unit 120 outputs an action instruction only when two conditions (i.e., determining whether the electrical signal at the power input terminal is greater than or equal to the preset minimum voltage threshold and determining whether the state signal of the preset switch unit BE is closed) are met at the same time. Otherwise, the process returns to step S401 for collection.

[0084] S403: If the electrical signal collected at the power input terminal is greater than or equal to the preset minimum voltage threshold, and the state signal of the collected preset switch unit is closed, the driving unit is controlled to work to realize the disconnection function of the tripping device.

[0085] Specifically, when the electrical signal collected at the power input end is greater than or equal to a preset minimum voltage threshold (such as 70% of the power supply required by the preset specifications), and the state signal of the preset switch unit BE is closed, the control unit 120 outputs an action instruction to control the drive unit 130 to work, thereby driving the coil 211 in the electromagnetic mechanism 210 to generate magnetic force, driving the mechanical actuator 212 to operate, and realizing the disconnecting function of the tripping device.

[0086] The control circuit for disconnection control provided by the present application collects and acquires the electrical signal of the power input terminal and the state signal of the preset switch unit in real time, determines whether the electrical signal collected at the power input terminal is greater than or equal to the preset minimum voltage threshold, and at the same time, collects whether the state signal of the preset switch unit is closed. If the electrical signal collected at the power input terminal is greater than or equal to the preset minimum voltage threshold, and the state signal of the preset switch unit is closed, the control driving unit is controlled to work to realize the disconnection function of the tripping device. Therefore, the present application can use the signal input terminal and the signal acquisition unit to enable the control circuit for disconnection control to quickly detect the state signal of the preset switch unit, which can not only save the working voltage establishment time and initialization time in the control circuit, but also realize the rapid disconnection of the tripping device.

[0087] It should be noted that, for the specific implementation method and technical effects of the disconnection control method, please refer to the above embodiments, which will not be repeated here.

[0088] Implemented by other means. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0089] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0090] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0091] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to perform some steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (English: Read-Only Memory, abbreviated: ROM), random access memory (English: Random Access Memory, abbreviated: RAM), disk or optical disk and other media that can store program codes.

[0092] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control circuit for breaking control, characterized in that: The control circuit for breaking control is arranged in the tripping device, and the control circuit for breaking control comprises: a power input terminal, a signal input terminal, a signal acquisition unit, a control unit and a driving unit; Among them, the power input end is connected to one end of the driving unit, and the other end of the driving unit is used to connect to the wiring terminal of the electromagnetic mechanism in the tripping device. The power input end is also connected to the signal input end through a preset switch unit, and the signal input end is also connected to the control unit through the signal acquisition unit, and the control unit is connected to the control end of the driving unit.

2. The control circuit for breaking control according to claim 1, characterized in that: The control circuit for disconnection control further includes: a power supply sampling unit, which is connected to the power input terminal and is also connected to the control unit.

3. The control circuit for breaking control according to claim 1, characterized in that: The control circuit for breaking control further includes: a power supply unit, the power input end is also connected to the power supply unit, and the power supply unit is connected to the control unit and the drive unit.

4. The control circuit for breaking control according to claim 1, characterized in that: The power input terminal includes: a positive power terminal and a negative power terminal, and the positive power terminal or the negative power terminal is connected to the signal input terminal through the preset switch unit.

5. The control circuit for breaking control according to claim 1, characterized in that: The power input end is an AC input end, and the AC input end is connected to the signal input end through the preset switch unit.

6. The control circuit for breaking control according to claim 1, characterized in that: The preset switch unit is an output contact of the remote control unit, or an operation switch unit.

7. A tripping device, characterized in that: The tripping device comprises: an electromagnetic mechanism, and a control circuit for disconnection control as described in any one of claims 1 to 6, wherein a connection terminal of the electromagnetic mechanism is connected to the other end of a driving unit in the control circuit for disconnection control.

8. The tripping device according to claim 7, characterized in that: The control circuit for disconnection control is integrated on a preset circuit board.

9. The tripping device according to claim 7, characterized in that: The electromagnetic mechanism comprises: a coil and a mechanical actuator, the connection terminal of the coil is the connection terminal of the electromagnetic mechanism, and the coil is wound around the mechanical actuator.

10. A circuit breaker, characterized in that: The circuit breaker at least comprises: a tripping device as described in any one of claims 7 to 9.

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