Circuit breaker and power distribution device

Abstract

The utility model provides a circuit breaker and a power distribution device. The circuit breaker comprises a processor, a mode selection circuit, an alarm output circuit, a tripping circuit and a tripper, the first end of the processor is connected with the first end of the mode selection circuit, and the second end is connected with the first end of the alarm output circuit. The second end of the mode selection circuit is connected with the second end of the alarm output circuit, and the third end is connected with the first end of the tripping circuit; the second end of the tripping circuit is connected with the first end of the tripper; and the mode selection circuit is used for inputting a processing signal generated by the processor into the corresponding alarm output circuit and / or the tripping circuit based on user control. When a fault line and a complete line are separated based on the circuit breaker, a user operates the mode selection circuit based on specific requirements, so that the circuit breaker realizes switching of different working modes, and the circuit breaker in the line does not need to be changed. Therefore, the problem that the circuit breaker needs to be replaced due to the fact that the working mode of the circuit breaker needs to be switched can be effectively solved.

Description

Technical Field

[0001] This application relates to the field of electronic technologies, and particularly to a circuit breaker and a power distribution device. Background Art

[0002] Current circuit breakers can provide alarm and output functions. At the same time, the types of circuit breakers include: circuit breakers with alarm output without tripping, circuit breakers with alarm output and tripping, and circuit breakers with tripping without alarm output. For the selection of tripping and alarm aspects in the above various types of circuit breakers, only one mode can be selected, making a single circuit breaker unable to adapt to the situation where the circuit breaker needs to select different modes of operation at different time periods.

[0003] That is, in the case where the circuit breaker needs to operate in another operating mode different from the previous one, it is necessary to replace the circuit breaker to match the corresponding user requirements. If the type of circuit breaker in the circuit is changed to apply a circuit breaker that matches the user requirements in the circuit, a circuit breaker replacement operation needs to be performed. The circuit breaker replacement operation is likely to cause waste of cost and time, and is likely to damage the devices in the circuit where the circuit breaker is located. Utility Model Content

[0004] This application provides a circuit breaker and a power distribution device to solve the problem that the circuit breaker needs to select different modes of operation in different situations, and realizes that a circuit breaker can select different modes of operation.

[0005] In a first aspect, this application provides a circuit breaker, which includes: a processor, a mode selection circuit, an alarm output circuit, a tripping circuit, and a trip unit;

[0006] The first end of the processor is electrically connected to the first end of the mode selection circuit, and the second end is electrically connected to the first end of the alarm output circuit; the second end of the mode selection circuit is electrically connected to the second end of the alarm output circuit, and the third end is electrically connected to the first end of the tripping circuit; the third end of the alarm output circuit is grounded; the second end of the tripping circuit is electrically connected to the first end of the trip unit, and the third end is grounded; the second end of the trip unit is connected to the power supply voltage;

[0007] The mode selection circuit is configured to input the processing signal generated by the processor into the corresponding alarm output circuit and / or tripping circuit based on user manipulation.

[0008] The circuit breaker provided in the first aspect of this application includes: a mode selection circuit. The user can select and manipulate the mode selection circuit in real time so that the mode selection circuit is connected to the alarm output circuit and / or the tripping circuit, enabling the processing signal generated by the processor to be input into the corresponding alarm output circuit and / or tripping circuit, and the corresponding alarm output circuit and / or tripping circuit to perform operations. Based on the user's manipulation of the mode selection circuit, the circuit breaker can be switched between different operating modes.

[0009] When the circuit breaker provided based on the first aspect of the present application isolates the faulty line and the intact line, the user controls the mode selection circuit based on specific requirements, enabling the circuit breaker to switch between different working modes. Further, when different types of circuit breakers are required in the line, there is no need to replace the type of the circuit breaker in the line. Only the mode selection circuit needs to be controlled to change the working mode of the mode selection circuit. Thus, the problem of replacing the circuit breaker due to the need to switch the working mode of the circuit breaker can be effectively solved.

[0010] In a possible design, the mode selection circuit includes: a first pin, a second pin, a third pin, and a control component;

[0011] The first end of the first pin is electrically connected to the first end of the mode selection circuit, the first end of the second pin is electrically connected to the second end of the mode selection circuit, and the first end of the third pin is electrically connected to the third end of the mode selection circuit;

[0012] The control component is configured to electrically connect the second end of the first pin to the second end of the second pin and / or the second end of the third pin based on user control.

[0013] In a possible design, the circuit breaker further includes: a housing having an opening for exposing the control component.

[0014] In a possible design, the tripping circuit includes: a first capacitor, a first diode, and a second diode;

[0015] The first end of the first diode is electrically connected to the third end of the mode selection circuit, and the first end of the first diode is grounded. The second end of the first diode is electrically connected to the first end of the second diode; the second end of the second diode is electrically connected to the first end of the tripping device;

[0016] The first end of the first capacitor is electrically connected to the third end of the mode selection circuit, and the second end is grounded.

[0017] In a possible design, the alarm output circuit includes: a second capacitor and a first transistor;

[0018] The first end of the first transistor is electrically connected to the second end of the mode selection circuit, the second end of the first transistor is electrically connected to the second end of the processor, and the third end of the first transistor is grounded;

[0019] The first end of the second capacitor is electrically connected to the second end of the mode selection circuit, and the second end of the second capacitor is grounded.

[0020] In a possible design, the circuit breaker further includes: a substrate;

[0021] The mode selection circuit, the tripping circuit, and the alarm output circuit are all arranged on the same surface of the substrate.

[0022] In a possible design, the processor includes: a display device, and the display device is electrically connected to the first end of the alarm output circuit.

[0023] In a possible design, the processor includes: a control chip;

[0024] The first end of the control chip is electrically connected to the first end of the mode selection circuit.

[0025] In a second aspect, the present application provides a power distribution device, including a circuit breaker as described in any one of the above.

[0026] For the beneficial effects of the power distribution device provided in the second aspect and each possible design of the second aspect, reference may be made to the beneficial effects brought about by the first aspect and each possible implementation manner of the first aspect of the present application, which will not be elaborated herein. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of a circuit breaker provided in the first aspect of the present application;

[0028] Figure 2 It is a schematic structural diagram of the mode selection circuit in the circuit breaker provided by the present application;

[0029] Figure 3 It is a circuit diagram of the tripping circuit in the circuit breaker provided by the present application;

[0030] Figure 4 It is a circuit diagram of the alarm output circuit in the circuit breaker provided by the present application;

[0031] Figure 5 It is a schematic structural diagram of another circuit breaker provided by the present application;

[0032] Figure 6 It is a schematic structural diagram of yet another circuit breaker provided by the present application. Detailed Embodiments

[0033] In this application, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the relationship between associated objects and indicates that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a alone, b alone, or c alone can represent: a alone, b alone, c alone, the combination of a and b, the combination of a and c, the combination of b and c, or the combination of a, b, and c, where a, b, and c can be single or multiple. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application.

[0035] The terms "connected" and "coupled" should be understood in a broad sense. For example, the "connection" or "coupling" of a circuit structure can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element, as long as the circuit is connected. It can also be the connection inside two elements; a signal connection can be a signal connection through a circuit or can also refer to a signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] Refer to Figure 1 , Figure 1 FIG.

[0037] The first end of the processor 1 is electrically connected to the first end of the mode selection circuit 2, and the second end is electrically connected to the first end of the alarm output circuit 3; the second end of the mode selection circuit 2 is electrically connected to the second end of the alarm output circuit 3, and the third end is electrically connected to the first end of the tripping circuit 4; the third end of the alarm output circuit 3 is grounded; the second end of the tripping circuit 4 is electrically connected to the first end of the tripping device 5, and the third end is grounded; the second end of the tripping device 5 is connected to the power supply voltage.

[0038] The mode selection circuit 2 is configured to input the processing signal generated by the processor 1 into the corresponding alarm output circuit 3 and / or tripping circuit 4 based on user manipulation.

[0039] Reference Figure 1 , the circuit breaker provided in the first aspect of the present application includes: a mode selection circuit 2. The user can selectively and real-time manipulate the mode selection circuit 2 to connect the mode selection circuit 2 to the alarm output circuit 3 and / or the tripping circuit 4, so that the processing signal generated by the processor 1 is input into the corresponding alarm output circuit 3 and / or tripping circuit 4, and the corresponding alarm output circuit 3 and / or tripping circuit 4 performs an operation.

[0040] When isolating a faulty line and a healthy line based on the circuit breaker provided in the first aspect of the present application, the user manipulates the mode selection circuit 2 based on specific requirements and processing signals, so that the circuit breaker switches between different working modes. Further, when different types of circuit breakers are required in the line, there is no need to replace the type of circuit breaker in the line. Just manipulate the mode selection circuit 2 and change the working mode of the mode selection circuit 2. Thus, the problem of replacing the circuit breaker due to the need to switch the working mode of the circuit breaker can be effectively solved.

[0041] When based on Figure 1 the shown circuit breaker isolates a faulty line and a healthy line, the user can input different processing signals into the corresponding tripping circuit 4 and / or alarm output circuit 3 based on manipulating the mode selection circuit 2, so as to realize the switching of the circuit breaker between different working modes. Thus, the switching selection of various different functions in the circuit breaker is realized, enabling the user to realize the switching and selection of multiple working modes in the same circuit breaker based on requirements.

[0042] In Figure 1 the shown circuit breaker, the processor 1 is configured to generate a processing signal and input the processing signal into the corresponding tripping circuit 4 and / or alarm output circuit 3 based on the mode selection circuit 2. The processing signal can be an alarm without tripping signal, an alarm and tripping signal, and a tripping without alarm signal.

[0043] Reference Figure 1, when the processing signal generated by the processor 1 is an alarm non - tripping signal, the user manipulates the mode selection circuit 2 based on this alarm non - tripping signal, so that the processor 1 is only electrically connected and conducted with the alarm output circuit 3 based on the mode selection circuit 2, and the alarm non - tripping signal is input into the alarm output circuit 3. The alarm output circuit 3 generates and outputs a first alarm signal to the processor 1. The processor 1 gives an alarm based on the first alarm signal.

[0044] Reference Figure 1 , when the processing signal generated by the processor 1 is a tripping non - alarm signal, the user manipulates the mode selection circuit 2 based on this tripping non - alarm signal, so that the processor 1 is only electrically connected and conducted with the tripping circuit 4 based on the mode selection circuit 2, and the tripping non - alarm signal is input into the tripping circuit 4. The tripping circuit 4 sends a tripping signal to the tripping device 5. The tripping device 5 trips based on the tripping signal.

[0045] Reference Figure 1 , when the processing signal generated by the processor 1 is an alarm and tripping signal, the user manipulates the mode selection circuit 2 based on this alarm and tripping signal, so that the processor 1 is electrically connected and conducted with the alarm output circuit 3 and the tripping circuit 4 respectively based on the mode selection circuit 2, and the alarm and tripping signal is input into the alarm output circuit 3 and the tripping circuit 4 respectively. The alarm output circuit 3 generates and outputs a second alarm signal to the processor 1. The processor 1 gives an alarm based on the second alarm signal. The tripping circuit 4 sends a tripping signal to the tripping device 5. The tripping device 5 trips based on the tripping signal.

[0046] Figure 1 The circuit breaker shown includes a power supply 6, and the power supply 6 is used to provide a power supply voltage for the tripping device 5.

[0047] Among them, the first alarm signal and the second alarm signal can be the same or different, and can be set based on specific requirements. For example, the first alarm signal can be set to only display the tripping information in the alarm of the processor 1, and the second alarm signal can be set to display the information that tripping is required and tripping is in progress in the alarm of the processor 1.

[0048] Reference Figure 2 , Figure 2 is a schematic structural diagram of the mode selection circuit in the circuit breaker provided by this application. In a possible design, the mode selection circuit 22 includes: a first pin 21, a second pin 22, a third pin 23, and a manipulation component 24.

[0049] The first end of the first pin 21 is electrically connected to the first end A1 of the mode selection circuit 2, the first end of the second pin 22 is electrically connected to the second end A2 of the mode selection circuit 2, and the first end of the third pin 23 is electrically connected to the third end A3 of the mode selection circuit 2.

[0050] The control component 24 is used to electrically connect the second end of the first pin 21 to the second end of the second pin 22 and / or the second end of the third pin 23 based on user control.

[0051] In Figure 2 In the shown mode selection circuit 2, the first pin 21 is a common pin, and the first pin 21 can be connected to the second pin 22 and / or the third pin 23. The first pin 21 is used to be electrically connected and conducted to the processor 1 based on the first end A1 of the mode selection circuit 2. The second pin 22 is used to be electrically connected and conducted to the alarm output circuit 3 based on the second end A2 of the mode selection circuit 2. The third pin 23 is used to be electrically connected and conducted to the tripping circuit 4 based on the third end A3 of the mode selection circuit 2.

[0052] In Figure 2 In the shown mode selection circuit 2, when the processing signal generated by the processor 1 is an alarm without tripping signal, the user controls the control component 24 to electrically connect the second end of the first pin 21 only to the second end of the second pin 22.

[0053] In Figure 2 In the shown mode selection circuit 2, when the processing signal generated by the processor 1 is a tripping without alarm signal, the user controls the control component 24 to electrically connect the second end of the first pin 21 only to the second end of the third pin 23.

[0054] In Figure 2 In the shown mode selection circuit 2, when the processing signal generated by the processor 1 is an alarm and tripping signal, the user controls the control component 24 to electrically connect the second end of the first pin 21 to the second end of the second pin 22 and the second end of the third pin 23 simultaneously.

[0055] In Figure 2 In the shown mode selection circuit 2, the first end A1 of the mode selection circuit 2 is a common input terminal. The first end A1 of the mode selection circuit 2 is used to access the processing signal output by the processor 1. The second end A2 of the mode selection circuit 2 is used to input the alarm without tripping signal or the alarm and tripping signal into the alarm output circuit 3. The third end A3 of the mode selection circuit 2 is used to input the tripping without alarm signal or the alarm and tripping signal into the tripping circuit 4.

[0056] In Figure 2 In a possible design of the shown mode selection circuit 2, the mode selection circuit 2 can be a three-pin three-position switch. When the mode selection circuit 2 is in the first position, the first pin 21 and the second pin 22 are electrically connected and conducted. When the mode selection circuit 2 is in the second position, the first pin 21 and the third pin 23 are electrically connected and conducted. When the mode selection circuit 2 is in the third position, the first pin 21 is electrically connected and conducted to the second pin 22 and the third pin 23 simultaneously.

[0057] In Figure 2In the circuit breaker to which the shown mode selection circuit 2 is applied, the user makes selections at different gears based on requirements, so that the first pin 21 is electrically connected and conducted to the second pin 22 and / or the third pin 23 respectively. Thus, different processing signals are output to circuits with different functions corresponding to the processing signals, and the circuits with different functions provide output signals for the downstream circuits or devices. Thus, the selection and switching of different working modes of the circuit breaker are realized.

[0058] In Figure 2 Taking the circuit breaker to which the shown mode selection circuit 2 is applied as an example to support the selection and switching of three different working output modes of the circuit breaker, the same circuit breaker is enabled to support three-mode selection, solving the problem of needing to select different types of circuit breakers under different usage scenarios.

[0059] Among them, the working output mode of the circuit breaker and the type of the mode selection circuit 2 in the circuit breaker include but are not limited to the above working output mode and the type of the mode selection circuit 2 in the circuit breaker. The user can set the specific working mode and the type of the mode selection circuit 2 based on specific requirements.

[0060] Among them, the mode selection circuit 2 can be a rotary encoder switch or a paddle encoder switch. If the mode selection circuit 2 is a rotary encoder switch, the control component 24 can be a rotary component. If the mode selection circuit 2 is a paddle encoder switch, the control component 24 can be a paddle component.

[0061] In a possible design, the circuit breaker further includes: a housing having an opening for exposing the control component 24.

[0062] The above circuit breaker further includes a housing. The housing is used to encapsulate and protect the circuit structure inside the circuit breaker to prevent the circuit structure from being damaged chemically or physically.

[0063] In the above circuit breaker, there is a mode selection circuit 2, and the mode selection circuit 2 includes a control component 24. Since the control component 24 is used to control the first pin 21 based on user operation, the control component 24 needs to be exposed outside the circuit breaker. Thus, when encapsulating the circuit breaker, an opening needs to be provided on the surface of the housing used to encapsulate the circuit breaker to expose the control component 24 for the user to operate the control component 24.

[0064] Refer to Figure 3 , Figure 3 This is the circuit diagram of the tripping circuit in the circuit breaker provided by this application. In a possible design, the tripping circuit 4 includes: a first capacitor C1, a first diode D1, and a second diode D2.

[0065] The first end of the first diode D1 is electrically connected to the third end A3 of the mode selection circuit 2, and the first end of the first diode D1 is grounded. The second end of the first diode D1 is electrically connected to the first end of the second diode D2. The second end of the second diode D2 is electrically connected to the first end of the release 5.

[0066] The first end of the first capacitor C1 is electrically connected to the third end A3 of the mode selection circuit 2, and the second end is grounded.

[0067] In Figure 3 In the release circuit 4 shown, the first capacitor C1 is a filter capacitor for filtering the processed signal input to the release circuit 4 to prevent external interference. The first diode D1 is a controllable diode that can control whether the first diode D1 conducts based on the magnitude of the voltage input to the control end of the first diode D1.

[0068] In Figure 3 In the release circuit 4 shown, the first end of the first capacitor C1 is the positive extreme of the first capacitor C1. The second end of the first capacitor C1 is the negative extreme of the first capacitor C1. The first end of the first diode D1 is the positive extreme of the first diode D1. The second end of the first diode D1 is the negative extreme of the first diode D1. The first end of the second diode D2 is the positive extreme of the second diode D2. The second end of the second diode D2 is the negative extreme of the second diode D2.

[0069] Figure 3 The second end of the release circuit 4 shown is electrically connected to the first end of the release coil in the release 5, and the second end of the release coil is connected to the power supply voltage.

[0070] In Figure 3 In the release circuit 4 shown, the first end B1 of the release circuit 4 is electrically connected to the first end of the first capacitor C1 and the first end of the first diode D1 respectively. The second end B2 of the release circuit 4 is electrically connected to the second end of the second diode D2.

[0071] In Figure 3 In possible designs of the release circuit 4 shown, the first diode D1 can be a thyristor diode. The third pin of the thyristor diode is controllable. The stages of the thyristor diode include: the controlled period and the non-controlled period. During the controlled period of the thyristor diode, the thyristor diode is in the conducting state. During the non-controlled period of the thyristor diode, the thyristor diode is in the off state.

[0072] Among them, based on the characteristics of the thyristor such as high breakdown voltage, large allowable current, and fast conduction speed, the thyristor diode can be used as the first diode D1. However, the type of the first diode D1 includes but is not limited to the thyristor diode. The type of the first diode D1 can be set based on specific requirements, as long as the first diode D1 is controllable.

[0073] In Figure 3 In the tripping circuit 4 shown, when the mode selection circuit 2 outputs an alarm and a tripping signal or a tripping without alarm signal, the first terminal B1 of the tripping circuit 4 is connected to the alarm and tripping signal or the tripping without alarm signal. After being filtered by the first capacitor C1, the alarm and tripping signal or the tripping without alarm signal is connected to the control pin of the first diode D1, causing the first diode D1 to conduct.

[0074] The alarm and tripping signal or the tripping without alarm signal flows through the first diode D1 and the second diode D2 into the coil of the tripping device 5. The coil of the tripping device 5 generates a magnetic field to drive the iron core in the tripping device 5 to move, thereby causing the tripping device 5 to trip.

[0075] Reference Figure 4 , Figure 4 is the circuit diagram of the alarm output circuit in the circuit breaker provided by the present application. In a possible design, the alarm output circuit 3 includes: a second capacitor C2 and a first transistor Q1.

[0076] The first end of the first transistor Q1 is electrically connected to the second end A2 of the mode selection circuit 2, the second end of the first transistor Q1 is electrically connected to the second end of the processor 1, and the third end of the first transistor Q1 is grounded.

[0077] The first end of the second capacitor C2 is electrically connected to the second end A2 of the mode selection circuit 2, and the second end of the second capacitor C2 is grounded.

[0078] In Figure 4 In the alarm output circuit 3 shown, the second capacitor C2 is used to filter the alarm and tripping signal or the alarm without tripping signal input to the alarm output circuit 3 to prevent external interference. The first transistor Q1 is a selectable conduction transistor, and is used to input the alarm and tripping signal or the alarm without tripping signal after being filtered by the second capacitor C2 into the processor 1.

[0079] In Figure 4 In the alarm output circuit 3 shown, the first end of the first transistor Q1 is the gate of the first transistor Q1. The second end of the first transistor Q1 is the drain of the first transistor Q1. The third end of the first transistor Q1 is the source of the first transistor Q1. The first end of the second capacitor C2 is the positive terminal of the second capacitor C2. The second end of the second capacitor C2 is the negative terminal of the second capacitor C2.

[0080] In Figure 4 In the alarm output circuit 3 shown, the second terminal E2 of the alarm output circuit 3 is electrically connected to the first end of the second capacitor C2 and the first end of the first transistor Q1 respectively. The first terminal E1 of the alarm output circuit 3 is electrically connected to the second end of the first transistor Q1.

[0081] InFigure 4 In the alarm output circuit 3 shown, the first transistor Q1 can be a triode. The triode conducts based on the alarm and trip signal or the alarm non-trip signal input at the gate terminal. The alarm signal is input into the processor 1 based on the drain terminal of the triode. Among them, the alarm signal includes: the alarm and trip signal or the alarm non-trip signal.

[0082] Reference Figure 5 , Figure 5 is a schematic structural diagram of another circuit breaker provided by the present application. In a possible design, the circuit breaker further includes: a substrate 7.

[0083] The mode selection circuit 2, the trip circuit 4, and the alarm output circuit 3 are all arranged on the same surface of the substrate 7.

[0084] In Figure 5 the shown circuit breaker, arranging the mode selection circuit 2, the trip circuit 4, and the alarm output circuit 3 on the surface of the same substrate 7 can effectively reduce costs and can effectively realize the switching of the circuit breaker among three different functional modes: the alarm non-trip mode, the alarm and trip mode, and the trip non-alarm mode. Among them, the substrate 7 can be an electronic circuit board.

[0085] Reference Figure 6 , Figure 6 is a schematic structural diagram of yet another circuit breaker provided by the present application. In a possible design, the processor 1 includes: a display device 11, and the display device 11 is electrically connected to the first end E1 of the alarm output circuit 3.

[0086] Reference Figure 6 , in a possible design, the processor 1 includes: a control chip 12.

[0087] The first end of the control chip 12 is electrically connected to the first end A1 of the mode selection circuit 2.

[0088] In Figure 6 the shown circuit breaker, the processor 1 includes: a display device 11 and a control chip 12. In this processor 1, the display device 11 is used for alarm display based on the alarm signal output by the alarm output device. The display device 11 is electrically connected to the alarm output device. The control chip 12 in this processor 1 is used for generating a processing signal and sending the processing signal to the mode selection circuit 2. The control chip 12 is electrically connected to the mode selection circuit 2.

[0089] In a second aspect, the present application provides a power distribution device, including the circuit breaker according to any one of the above.

[0090] For the beneficial effects of the power distribution device provided in the above second aspect and each possible design of the above second aspect, reference can be made to the beneficial effects brought by the above first aspect and each possible implementation manner of the first aspect, which will not be elaborated here.

Claims

1. A circuit breaker, characterized in that, The circuit breaker includes: a processor, a mode selection circuit, an alarm output circuit, a tripping circuit, and a trip unit; A first end of the processor is electrically connected to a first end of the mode selection circuit, and a second end of the processor is electrically connected to a first end of the alarm output circuit; a second end of the mode selection circuit is electrically connected to a second end of the alarm output circuit, and a third end of the mode selection circuit is electrically connected to a first end of the tripping circuit; a third end of the alarm output circuit is grounded; a second end of the tripping circuit is electrically connected to a first end of the trip unit, and a third end of the tripping circuit is grounded; a second end of the trip unit is connected to a power supply voltage; The mode selection circuit is configured to input a processing signal generated by the processor into a corresponding alarm output circuit and / or tripping circuit based on user manipulation.

2. The circuit breaker according to claim 1, characterized in that, The mode selection circuit includes: a first pin, a second pin, a third pin, and a manipulation component; A first end of the first pin is electrically connected to a first end of the mode selection circuit, a first end of the second pin is electrically connected to a second end of the mode selection circuit, and a first end of the third pin is electrically connected to a third end of the mode selection circuit; The manipulation component is configured to electrically connect a second end of the first pin to a second end of the second pin and / or a second end of the third pin based on user manipulation.

3. The circuit breaker according to claim 2, characterized in that, The circuit breaker further includes: a housing having an opening for exposing the manipulation component.

4. The circuit breaker according to claim 1, characterized in that, The tripping circuit includes: a first capacitor, a first diode, and a second diode; A first end of the first diode is electrically connected to a third end of the mode selection circuit and grounded at the first end of the first diode, and a second end of the first diode is electrically connected to a first end of the second diode; a second end of the second diode is electrically connected to a first end of the trip unit; A first end of the first capacitor is electrically connected to a third end of the mode selection circuit, and a second end of the first capacitor is grounded.

5. The circuit breaker according to claim 1, characterized in that, The alarm output circuit includes: a second capacitor and a first transistor; A first end of the first transistor is electrically connected to a second end of the mode selection circuit, a second end of the first transistor is electrically connected to a second end of the processor, and a third end of the first transistor is grounded; A first end of the second capacitor is electrically connected to a second end of the mode selection circuit, and a second end of the second capacitor is grounded.

6. The circuit breaker according to claim 1, characterized in that, The circuit breaker further includes: a substrate; The mode selection circuit, the tripping circuit, and the alarm output circuit are all disposed on the same surface of the substrate.

7. The circuit breaker according to claim 1, characterized in that, The processor includes: a display device electrically connected to a first end of the alarm output circuit.

8. The circuit breaker according to claim 1, characterized in that, The processor includes: a control chip; A first end of the control chip is electrically connected to a first end of the mode selection circuit.

9. A power distribution device, characterized in that, Including the circuit breaker according to any one of claims 1-8.

Images