Electric operating mechanism of circuit breaker and circuit breaker device

Abstract

The utility model provides an electric operating mechanism of a circuit breaker and a circuit breaker device. The mechanism comprises a control module, a first signal receiving module, a motor driving module and a communication module, the first input end of the first signal receiving module is connected with the breaker, and the output end is connected with the control module; the first end of the communication module is connected with the control module, and the second end is connected with the host computer; the control end of the control module is connected with the motor driving module, and the output end of the motor driving module is connected with the closing and opening actuator; the communication module receives an enabling control signal and a closing and opening signal from an upper computer and sends the signals to the control module; the first signal receiving module receives the re-deduction signal and sends the re-deduction signal to the control module; the control module generates a first control signal under the action of the enabling control signal and the re-buckling signal, and generates a second control signal under the action of the switching-on and switching-off signal; and the motor driving module controls the closing and opening actuator to be re-buckled and closing and opening under the action of the first control signal and the second control signal, so that closing and opening after automatic re-buckling of the circuit breaker are realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-voltage electrical apparatus, in particular to an electric operating mechanism of a circuit breaker and a circuit breaker device. BACKGROUND

[0002] The circuit breaker is a kind of terminal protection electrical apparatus widely used in electrical terminal power distribution devices, and the electric operating mechanism is an accessory for remote automatic tripping and closing of the circuit breaker. After the circuit breaker trips due to a fault, the circuit breaker is in a tripped state.

[0003] At present, when the circuit breaker is in the tripped state, the electric operating mechanism needs to be first operated to trip, and then the closing operation can be performed. This process needs two steps, which is not convenient, especially in some emergency or specific application scenarios. CONTENT OF THE INVENTION

[0004] The present application aims at the deficiencies in the prior art, and provides an electric operating mechanism of a circuit breaker and a circuit breaker device to solve the problem of low efficiency of the electric operating mechanism in the prior art when the circuit breaker is in a tripped state and the closing operation is performed after the tripping operation in an emergency or specific application scenario.

[0005] To achieve the above-mentioned purpose, the technical solutions adopted by the embodiments of the present application are as follows:

[0006] In a first aspect, the embodiments of the present application provide an electric operating mechanism of a circuit breaker, which comprises a control module, a first signal receiving module, a motor driving module and a communication module.

[0007] A first input end of the first signal receiving module is connected with an output end of the circuit breaker, and an output end of the first signal receiving module is connected with a first end of the control module.

[0008] A first end of the communication module is connected with a second end of the control module, and a second end of the communication module is connected in communication with an upper computer.

[0009] A control end of the control module is connected with a first input end of the motor driving module, and an output end of the motor driving module is connected with a closing and tripping actuator installed on the circuit breaker.

[0010] The communication module is used for receiving an enabling control signal and a closing and tripping signal from the upper computer, and sending the enabling control signal and the closing and tripping signal to the control module, wherein the enabling control signal is used to instruct the electric operating mechanism to enable the automatic reclosing function.

[0011] The first signal receiving module is configured to receive a reclosing signal sent when the circuit breaker is in a tripped state, and send the reclosing signal to the control module;

[0012] The control module is configured to generate a first control signal under the action of the enable control signal and the reclosing signal, and send the first control signal to the motor driving module, and generate a second control signal under the action of the closing-opening signal, and send the second control signal to the motor driving module;

[0013] The motor driving module is configured to control the closing-opening actuator to perform a reclosing operation under the action of the first control signal, and control the closing-opening actuator to perform a closing-opening operation under the action of the second control signal.

[0014] As an optional implementation, the communication module comprises a signal isolation unit and a communication unit;

[0015] The first end of the signal isolation unit is connected with the second end of the control module, and the second end of the signal isolation unit is connected with the first end of the communication unit;

[0016] The second end of the communication unit is in communication connection with the upper computer.

[0017] As an optional implementation, the mechanism further comprises a power module;

[0018] The power supply end of the power module is connected with the second input end of the first signal receiving module, the third end of the communication module, the fourth end of the control module, and the second input end of the motor driving module, respectively;

[0019] The power module is configured to supply power to the first signal receiving module, the communication module, the control module, and the motor driving module.

[0020] As an optional implementation, the mechanism further comprises a second signal receiving module;

[0021] The input end of the second signal receiving module is connected with an external control device;

[0022] The output end of the second signal receiving module is connected with the third end of the control module;

[0023] The second signal receiving module is configured to collect the digital signal state of the external control device and generate the closing-opening signal sent to the control module.

[0024] As an optional implementation, the second signal receiving module comprises a signal collecting unit;

[0025] The input end of the signal acquisition unit is connected with the external control device, and the output end of the signal acquisition unit is connected with the third end of the control module;

[0026] The signal acquisition unit is used for acquiring the digital signal state of the external control device and sending the digital signal state to the control module as the close and open control signal.

[0027] As an optional implementation, the control module is specifically configured to generate a reclosing control signal when the reclosing signal and the enable control signal are received, generate the second control signal when the close and open control signal from the upper computer or the external control device is received, and send the reclosing control signal and the second control signal to the motor driving module in sequence.

[0028] The motor driving module is specifically configured to control the close and open control executor to perform reclosing operation and close and open operation in sequence under the action of the reclosing control signal and the second control signal.

[0029] As an optional implementation, the control module is specifically configured to discard the reclosing signal when the reclosing signal is received and the enable control signal is not received, generate an open control signal and a close control signal in sequence when the open signal and the close signal from the upper computer or the external control device are received, and send the open control signal and the close control signal to the motor driving module in sequence.

[0030] The motor driving module is specifically configured to control the close and open control executor to perform open operation and close operation in sequence under the action of the open control signal and the close control signal.

[0031] As an optional implementation, the control module is specifically configured to generate an open control signal and send it to the motor driving module when the reclosing signal is not received and the open signal from the upper computer or the external control device is received.

[0032] The motor driving module is specifically configured to control the close and open control executor to perform open operation under the action of the open control signal.

[0033] As an optional implementation, the control module is specifically configured to generate a close control signal and send it to the motor driving module when the reclosing signal is not received and the close signal from the upper computer or the external control device is received.

[0034] The motor driving module is specifically configured to control the close and open control executor to perform close operation under the action of the close control signal.

[0035] In a second aspect, the embodiments of the present application provide a circuit breaker device, comprising the electric operating mechanism of the circuit breaker and the circuit breaker.

[0036] The present application has the following beneficial effects:

[0037] The present application provides an electric operating mechanism of a circuit breaker and a circuit breaker device. The electric operating mechanism of the circuit breaker comprises a control module, a first signal receiving module, a motor driving module and a communication module. The first input end and the output end of the first signal receiving module are connected with the output end of the circuit breaker and the first end of the control module respectively, so as to receive a reclosing signal sent by the circuit breaker in a tripped state and send it to the control module. The first end and the second end of the communication module are connected with the second end of the control module and the upper computer respectively, so as to realize the bidirectional communication between the communication module and the control module and the upper computer. The control end of the control module is connected with the first input end of the motor driving module, and the output end of the motor driving module is connected to a close-open actuator installed on the circuit breaker. The communication module sends an enable control signal from the upper computer and a reclosing signal from the circuit breaker to the control module, so that the control module generates a first control signal based on the enable control signal and the reclosing signal and sends it to the motor driving module, so that the motor driving module controls the close-open actuator to perform a reclosing operation under the action of the first control signal, and then the circuit breaker is automatically switched from the tripped state to the reclosing state. The communication module also sends a close-open signal from the upper computer to the control module, so that the control module generates a second control signal based on the close-open signal and sends it to the motor driving module, so that the motor driving module controls the close-open actuator to perform a close-open operation under the action of the second control signal, and then realizes the automatic close-open of the circuit breaker after tripping. The problem of low efficiency caused by the close-open operation after tripping of the circuit breaker is solved, and the close-open efficiency of the circuit breaker after tripping is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0039] Figure 1 The structural schematic diagram of the electric operating mechanism of the circuit breaker provided by the embodiments of the present application is shown in the figure.

[0040] Figure 2 Another structural schematic diagram of the electric operating mechanism of the circuit breaker provided by the embodiments of the present application is shown in the figure.

[0041] Figure 3Another structural schematic diagram of the electric operating mechanism of the circuit breaker provided by the embodiment of the present application is shown in FIG. 6.

[0042] Figure 4 Another structural schematic diagram of the electric operating mechanism of the circuit breaker provided by the embodiment of the present application is shown in FIG. 6.

[0043] Figure 5 Another structural schematic diagram of the electric operating mechanism of the circuit breaker provided by the embodiment of the present application is shown in FIG. 6.

[0044] Icon: control module: 11; first signal receiving module: 12; motor driving module: 13; communication module: 14; closing and opening actuator: 15; power module: 16; second signal receiving module: 17; signal isolation unit: 141; communication unit: 142; signal acquisition unit: 171. DETAILED DESCRIPTION

[0045] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some 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 can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0047] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present application, the terms "first", "second", "third" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present application, unless explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the field of low-voltage electrical apparatus, the electric operating mechanism is an accessory of the remote automatic opening and closing circuit breaker. After the circuit breaker is tripped due to a fault, the circuit breaker is in a tripped state. At present, when the circuit breaker is in the tripped state, a first opening operation needs to be performed on the electric operating mechanism, and then a first closing operation can be performed on the electric operating mechanism. In some emergency or specific application scenarios, the efficiency is low and the convenience is insufficient.

[0050] Based on the above problems, the electric operating mechanism of the circuit breaker provided in the embodiments of the present application includes a control module, a first signal receiving module, a motor driving module, a communication module, a second signal receiving module, and a power supply module. When the circuit breaker is in an abnormal tripped state, a reclosing signal is provided to the first signal receiving module. The first signal receiving module sends the reclosing signal to the control module. If the control module has previously received an enable control signal from the upper computer sent by the communication module, the control module instructs the electric operating mechanism to enable the automatic reclosing function based on the enable control signal. When the reclosing signal is received, the control module generates a reclosing control signal and sends it to the motor driving module. The motor driving module controls the closing and opening actuator to reclose based on the reclosing control signal. When a closing and opening signal from the upper computer or an external control device is received, the motor driving module generates a closing and opening control signal and sends it to the motor driving module. The motor driving module controls the closing and opening actuator to close and open based on the closing and opening control signal, so as to realize the automatic reclosing and closing and opening of the circuit breaker after the automatic reclosing, and improve the efficiency and convenience of the closing and opening.

[0051] Figure 1 The schematic structural diagram of the electric operating mechanism of the circuit breaker provided in the embodiments of the present application is shown in Figure 1 The electric operating mechanism of the circuit breaker includes a control module 11, a first signal receiving module 12, a motor driving module 13, and a communication module 14.

[0052] Optionally, referring to Figure 1 The electric operating mechanism of the circuit breaker includes a control module 11, a first signal receiving module 12, a motor driving module 13, and a communication module 14. In addition, the electric operating mechanism of the circuit breaker further includes a closing and opening actuator 15, which is installed on the circuit breaker. For example, the closing and opening actuator 15 can be installed on the handle of the circuit breaker. The closing and opening actuator 15 drives the moving and static contacts of the circuit breaker to close under the control of the motor driving module 13, and drives the moving and static contacts of the circuit breaker to separate under the control of the motor driving module 13.

[0053] The first input end of the first signal receiving module 12 is connected with the output end of the circuit breaker, and the output end of the first signal receiving module 12 is connected with the first end of the control module 11.

[0054] Optionally, continuing to refer to Figure 1The first input end of the first signal receiving module 12 is connected to the output end of the circuit breaker, and the output end of the first signal receiving module 12 is connected to the first end of the control module 11. Based on this connection mode, the circuit breaker can realize indirect communication with the control module 11 of the electric operating mechanism through the first signal receiving module 12.

[0055] The first end of the communication module 14 is connected to the second end of the control module 11, and the second end of the communication module 14 is in communication connection with the upper computer.

[0056] Optionally, continuing to refer to Figure 1 The first end of the communication module 14 is connected to the second end of the control module 11, and the second end of the communication module 14 is in communication connection with the upper computer.

[0057] The control end of the control module 11 is connected to the first input end of the motor driving module 13, and the output end of the motor driving module 13 is connected to the closing and opening executor 15 installed on the circuit breaker.

[0058] Optionally, continuing to refer to Figure 1 The control end of the control module 11 is connected to the first input end of the motor driving module 13 to control the motor in the motor driving module 13 to rotate forward, reverse, stop or brake. The output end of the motor driving module 13 is connected to the closing and opening executor 15 installed on the circuit breaker, and the closing and opening executor 15 performs corresponding closing and opening operations to drive the moving and static contacts of the circuit breaker to close or separate when the motor is in each operating state.

[0059] The communication module 14 is used for receiving an enable control signal and a closing and opening signal from the upper computer and sending the enable control signal and the closing and opening signal to the control module 11, wherein the enable control signal is used to instruct the electric operating mechanism to enable an automatic reclosing function.

[0060] Optionally, continuing to refer to Figure 1 The upper computer generates an enable control signal in advance and sends it to the communication module 14, and the communication module 14 sends the enable control signal to the control module 11, so that the control module 11 instructs the electric operating mechanism to enable the automatic reclosing function based on the enable control signal, so that the electric operating mechanism is in a scenario of enabling the automatic reclosing function. The upper computer also generates a closing and opening signal based on the operation of the user and sends it to the communication module 14, and the communication module 14 sends the closing and opening signal to the control module 11.

[0061] The first signal receiving module 12 is used for receiving a reclosing signal sent when the circuit breaker is in a tripped state and sending the reclosing signal to the control module 11.

[0062] Optionally, continuing to refer to Figure 1 In the case of manual tripping, overload failure, or under-voltage, etc., the moving and static contacts of the circuit breaker are separated, and the circuit breaker is in the tripped state. At this time, the circuit breaker generates a reclosing signal and sends the reclosing signal to the first signal receiving module 12. The first signal receiving module 12 sends the reclosing signal to the control module 11. The control module 11 can determine that the circuit breaker is in an abnormal tripped state based on the reclosing signal.

[0063] The control module 11 is configured to generate a first control signal and send the first control signal to the motor drive module under the action of the enable control signal and the reclosing signal, and generate a second control signal and send the second control signal to the motor drive module 13 under the action of the close-open signal.

[0064] Optionally, the control module 11 combines the enable control signal from the upper computer and the reclosing signal from the circuit breaker, generates a first control signal under the action of the enable control signal and the reclosing signal, and sends the first control signal to the motor drive module 13. The control module 11 generates a second control signal based on the close-open signal from the upper computer and sends the second control signal to the motor drive module 13. In order for the control module 11 to control the motor drive module 13 to perform different motor operation actions based on the first control signal and the second control signal, respectively.

[0065] The motor drive module 13 is configured to control the close-open actuator 15 to perform a reclosing operation under the action of the first control signal, and control the close-open actuator 15 to perform a close-open operation under the action of the second control signal.

[0066] Optionally, the motor drive module 13 controls the motor to operate in a first mode under the action of the first control signal sent by the control module 11, so that the close-open actuator 15 performs a reclosing operation, and the circuit breaker is automatically switched from the tripped state to the reclosing state. The reclosing state is a prerequisite for subsequent close or open operations. When the circuit breaker is in the reclosing state, it indicates that the circuit breaker is in a stage of preparing for subsequent close or open operations. At this time, the motor drive module 13 controls the motor to operate in a second mode under the action of the second control signal sent by the control module 11, so that the close-open actuator 15 performs a close-open operation, and the circuit breaker realizes automatic reclosing and close-open after reclosing.

[0067] In the embodiment, the electric operating mechanism of the circuit breaker comprises a control module, a first signal receiving module, a motor driving module and a communication module. The first input end and the output end of the first signal receiving module are connected with the output end of the circuit breaker and the first end of the control module respectively, so as to receive the reclosing signal sent by the circuit breaker in the tripping state and send it to the control module. The first end and the second end of the communication module are connected with the second end of the control module and the upper computer respectively, so as to realize the bidirectional communication between the communication module and the control module and the upper computer. The control end of the control module is connected with the first input end of the motor driving module, and the output end of the motor driving module is connected to the closing and opening executor installed on the circuit breaker. The communication module sends the enable control signal from the upper computer and the reclosing signal from the circuit breaker to the control module, so that the control module generates the first control signal based on the enable control signal and the reclosing signal and sends it to the motor driving module, so that the motor driving module controls the closing and opening executor to perform the reclosing operation under the action of the first control signal, and then the circuit breaker is automatically switched from the tripping state to the reclosing state. The communication module also sends the closing and opening signal from the upper computer to the control module, so that the control module generates the second control signal based on the closing and opening signal and sends it to the motor driving module, so that the motor driving module controls the closing and opening executor to perform the closing and opening operation under the action of the second control signal, and then the closing and opening of the circuit breaker after automatic reclosing is realized. The problem of low efficiency caused by the closing and opening of the circuit breaker after tripping is solved, and the efficiency of the closing and opening of the circuit breaker after tripping is improved.

[0068] Figure 2 Another structural schematic diagram of the electric operating mechanism of the circuit breaker provided in the embodiment of the application is shown in Figure 2 As shown in the figure, the communication module 14 comprises a signal isolation unit 141 and a communication unit 142.

[0069] Optionally, referring to Figure 2 The communication module 14 comprises two units, namely the signal isolation unit 141 and the communication unit 142. The signal isolation unit 141 can be a signal isolation chip, and the communication unit 142 can be a communication chip. The signal isolation unit 141 is used to electrically isolate the signal transmission between different circuits, prevent the transmission of interference signals, and realize the isolated transmission of signals. The communication unit 142 is used to realize signal transmission according to the corresponding communication protocol.

[0070] The first end of the signal isolation unit 141 is connected with the second end of the control module 11, and the second end of the signal isolation unit 141 is connected with the first end of the communication unit 142. The second end of the communication unit 142 is in communication connection with the upper computer.

[0071] Optionally, continuing to refer to Figure 2The first end of the signal isolation unit 141 is connected to the second end of the control module 11 as the first end of the communication module 14. The second end of the signal isolation unit 141 is connected to the first end of the communication unit 142. The second end of the communication unit 142 is connected to the host computer as the second end of the communication module 14. When the control module 11 sends a signal to the host computer through the communication module 14, the signal isolation unit 141 performs isolation processing on the signal sent by the control module 11, and sends the isolated signal to the communication unit 142. The communication unit 142 decodes and modulates the isolated signal according to a specific communication protocol and outputs it to the host computer. When the host computer sends a signal to the control module 11 through the communication module 14, the communication unit 142 decodes and modulates the signal sent by the host computer and sends it to the signal isolation unit 141. The signal isolation unit 141 performs isolation processing on the decoded and modulated signal and transmits it to the control module 11. Through the signal isolation unit 141 and the communication unit 142 in the communication module 14, the isolation transmission of signals between the control module 11 and the host computer is realized.

[0072] In the embodiment, the signal isolation unit and the communication unit are arranged in the communication module. The first end of the signal isolation unit is connected to the second end of the control module as the first end of the communication module. The second end of the signal isolation unit is connected to the first end of the communication unit. The second end of the communication unit is connected to the host computer as the second end of the communication module. By arranging the signal isolation unit and the communication unit in the communication module, the isolation transmission of signals between the control module and the host computer is realized, the signal transmission quality is improved, and signal interference is avoided.

[0073] Figure 3 Another structural schematic diagram of the electric operating mechanism of the circuit breaker is provided in the embodiment of the application, as shown in Figure 3 The electric operating mechanism of the circuit breaker further includes a power supply module 16.

[0074] Optionally, referring to Figure 3 The electric operating mechanism of the circuit breaker further includes a power supply module 16. The power supply module is configured to provide electric energy to other modules in the electric operating mechanism of the circuit breaker.

[0075] The power supply end of the power supply module 16 is connected to the second input end of the first signal receiving module 12, the third end of the communication module 14, the fourth end of the control module 11, and the second input end of the motor driving module 13.

[0076] Optionally, continuing to refer to Figure 3 The power supply end of the power supply module 16 is connected to the second input end of the first signal receiving module 12, the third end of the communication module 14, the fourth end of the control module 11, and the second input end of the motor driving module 13.

[0077] The power module 16 is configured to supply power to the first signal receiving module 12, the communication module 14, the control module 11 and the motor driving module 13.

[0078] Optionally, the power module 16 can supply power to the first signal receiving module 12, the communication module 14, the control module 11 and the motor driving module 13, and maintain normal operation of the first signal receiving module 12, the communication module 14, the control module 11 and the motor driving module 13.

[0079] In the embodiment, the power module is arranged in the electric operating mechanism of the circuit breaker, and the power supply end of the power module is connected with the second input end of the first signal receiving module, the third end of the communication module, the fourth end of the control module and the second input end of the motor driving module respectively, so that the power module supplies power to the first signal receiving module, the communication module, the control module and the motor driving module.

[0080] Figure 4 Another structural schematic diagram of the electric operating mechanism of the circuit breaker provided in the embodiment is shown in Figure 4 The mechanism further comprises a second signal receiving module 17.

[0081] Optionally, referring to Figure 4 , the electric operating mechanism of the circuit breaker further comprises the second signal receiving module 17, and the second signal receiving module 17 is connected with the external control device and the control module 11 respectively. In addition, the second signal receiving module 17 can also be connected with the power module 16, and the power module 16 supplies power to the second signal receiving module 17.

[0082] The input end of the second signal receiving module 17 is connected with the external control device. The output end of the second signal receiving module 17 is connected with the third end of the control module 11.

[0083] Optionally, continuing to refer to Figure 4 , the input end of the second signal receiving module 17 is connected with the external control device, and the output end of the second signal receiving module 17 is connected with the third end of the control module 11. One-way communication from the external control device to the control module 11 can be realized through the second signal receiving module 17.

[0084] The second signal receiving module 17 is configured to collect the digital signal state of the external control device and generate a close / open signal and send the close / open signal to the control module 11.

[0085] Optionally, continuing to refer to Figure 4The second signal receiving module 17 can be a digital input (DI) module, and the second signal receiving module 17 collects the digital signal state of the external control device. For example, the external control device can be a first button and a second button. When the user presses the first button, a first level is generated, the first level is taken as a digital signal state and sent to the second signal receiving module 17, and the second signal receiving module 17 generates a closing signal based on the digital signal state of the first level and sends the closing signal to the control module 11. When the user presses the second button, a second level is generated, the second level is taken as a digital signal state and sent to the second signal receiving module 17, and the second signal receiving module 17 generates an opening signal based on the digital signal state of the second level and sends the opening signal to the control module 11. That is, the control module 11 can not only receive the closing and opening signals from the upper computer sent by the communication module 14, but also receive the closing and opening signals from the external control device sent by the second signal receiving module 17.

[0086] In the embodiment, the electric operating mechanism of the circuit breaker further includes a second signal receiving module, an input end of the second signal receiving module is connected to an external control device, and an output end of the second signal receiving module is connected to a third end of the control module. The second signal receiving module collects the digital signal state of the external control device and generates a closing and opening signal and sends the closing and opening signal to the control module, and one-way communication from the external control device to the control module can be realized through the second signal receiving module. The flexibility of the control module in receiving the closing and opening signal is improved.

[0087] Figure 5 Another structural schematic diagram of the electric operating mechanism of the circuit breaker provided in the embodiment of the present application is shown in FIG. 6. Figure 5 As shown in FIG. 6, the second signal receiving module 17 includes a signal collecting unit 171.

[0088] Optionally, referring to FIG. 6, Figure 5 the second signal receiving module 17 includes the signal collecting unit 171, and the signal collecting unit 171 is connected to the external control device and the control module 11 respectively.

[0089] The input end of the signal collecting unit 171 is connected to the external control device, and the output end of the signal collecting unit 171 is connected to the third end of the control module 11.

[0090] Optionally, continuing to refer to FIG. 6, Figure 5 the input end of the signal collecting unit 171 is taken as the input end of the second signal receiving module 17 and connected to the external control device, and the output end of the signal collecting unit 171 is taken as the output end of the second signal receiving module 17 and connected to the third end of the control module 11.

[0091] The signal acquisition unit 171 is configured to acquire the digital signal state of the external control device and send the digital signal state of the external control device as the close and open signal to the control module 11.

[0092] Optionally, the signal acquisition unit 171 acquires the digital signal state of the external control device, for example, the first level generated by the first button or the second level generated by the second button, and sends the first level or the second level as the digital signal state of the external control device to the control module 11 as the close and open signal. For example, when the digital signal state of the external control device is the first level, the signal acquisition unit 171 sends the close signal to the control module 11, and when the digital signal state of the external control device is the second level, the signal acquisition unit 171 sends the open signal to the control module 11.

[0093] In this embodiment, the signal acquisition module is arranged in the second signal receiving module, the input end of the signal acquisition module is connected with the external control device as the input end of the second signal receiving module, and the output end of the signal acquisition module is connected with the third end of the control module as the output end of the second signal receiving module. The signal acquisition unit acquires the digital signal state of the external control device and sends the acquired digital signal state of the external control device as the close and open signal to the control module. The control module improves the flexibility and accuracy of receiving the close and open signal.

[0094] As an optional implementation, the control module 11 is specifically configured to generate a reclosing control signal when receiving the reclosing signal and the enable control signal, generate a second control signal when receiving the close and open signal from the upper computer or the external control device, and sequentially send the reclosing control signal and the second control signal to the motor driving module 13.

[0095] Optionally, after the control module 11 receives the enable control signal from the upper computer in advance, the electric operating mechanism is in a scenario of enabling the automatic reclosing function. When the control module 11 receives the reclosing signal from the tripped circuit breaker, the reclosing control signal is generated and sent to the motor driving module 13, so that the motor driving module 13 controls the close and open actuator 15 to perform the reclosing operation under the action of the reclosing control signal, that is, the circuit breaker is in the reclosing state, which meets the precondition of subsequent close and open operations. At this time, when the control module 11 receives the close and open signal from the upper computer or the external control device, the second control signal is generated and sent to the motor driving module 13, so that the motor driving module 13 controls the close and open actuator 15 to perform the close and open operation under the action of the close and open control signal.

[0096] The motor driving module 13 is specifically configured to control the close and open actuator 15 to perform the reclosing operation and the close and open operation under the action of the reclosing control signal and the second control signal.

[0097] Optionally, the motor drive module 13 controls the close-open executor 15 to perform the reclosing operation under the action of the reclosing control signal sent by the control module 11, at this time the circuit breaker is in the reclosing state, meeting the precondition of subsequent closing operation or opening operation. The motor drive module 13 controls the close-open executor 15 to perform the close-open operation under the action of the second control signal sent by the control module 11, realizing the automatic reclosing and then closing and opening of the circuit breaker when the circuit breaker is abnormally tripped in the scenario that the motor operating mechanism is enabled to automatically reclose.

[0098] In the embodiment, after the control module pre-receives the enable control signal from the upper computer, the motor operating mechanism is in the scenario that the automatic reclosing function is enabled. When the control module receives the reclosing signal from the tripped circuit breaker, the reclosing control signal is generated and sent to the motor drive module. The motor drive module controls the close-open executor to perform the reclosing operation under the action of the reclosing control signal, so that the circuit breaker is in the reclosing state, meeting the precondition of subsequent closing operation or opening operation. When the control module receives the close-open signal from the upper computer or the external control device, the second control signal is generated and sent to the motor drive module. The motor drive module controls the close-open executor to perform the close-open operation under the action of the close-open control signal, realizing the automatic reclosing and then closing and opening of the circuit breaker when the circuit breaker is abnormally tripped in the scenario that the motor operating mechanism is enabled to automatically reclose. The efficiency of the closing and opening of the circuit breaker after tripping is improved.

[0099] As an optional implementation, the control module 11 is specifically configured to discard the reclosing signal when the reclosing signal is received and the enable control signal is not received, and sequentially generate the opening control signal and the closing control signal when the opening signal and the closing signal from the upper computer or the opening signal and the closing signal from the external control device are received, and sequentially send the opening control signal and the closing control signal to the motor drive module 13.

[0100] Optionally, after the control module 11 pre-receives the enable control signal from the upper computer, the motor operating mechanism is in the scenario that the automatic reclosing function is not enabled. When the control module 11 receives the reclosing signal from the tripped circuit breaker, the reclosing signal is directly discarded, that is, the reclosing control signal is not generated. At this time, the control module 11 first receives the closing signal from the upper computer or the external control device, generates the closing control signal and sends it to the motor drive module 13, and then receives the closing signal from the upper computer or the external control device, generates the closing control signal and sends it to the motor drive module 13.

[0101] The motor drive module 13 is specifically configured to control the close-open executor 15 to sequentially perform the opening operation and the closing operation under the action of the opening control signal and the closing control signal.

[0102] Optionally, the motor driving module 13 controls the closing and opening actuator 15 to perform the opening operation under the action of the opening control signal sent by the control module 11, and controls the closing and opening actuator 15 to perform the closing operation under the action of the closing control signal sent by the control module 11. In the scenario that the electric operating mechanism is in the state of not enabling the automatic reclosing function, the circuit breaker is first opened and then closed when abnormal tripping occurs.

[0103] In the embodiment, when the control module does not receive the enabling control signal in advance, the electric operating mechanism is in the scenario of not enabling the automatic reclosing function, and when the control module receives the reclosing signal from the tripped circuit breaker, the reclosing signal is discarded. The control module receives the opening signal and the closing signal from the upper computer or the external control device in turn, generates the opening control signal and the closing control signal in turn, and sends them to the motor driving module in turn. The motor driving module controls the closing and opening actuator to perform the opening operation and the closing operation in turn under the action of the opening control signal and the closing control signal, so that the circuit breaker is first opened and then closed when abnormal tripping occurs in the scenario that the electric operating mechanism is in the state of not enabling the automatic reclosing function.

[0104] As an optional implementation, the control module 11 is specifically configured to generate the opening control signal and send it to the motor driving module 13 when the reclosing signal is not received and the opening signal from the upper computer or the opening signal from the external control device is received.

[0105] Optionally, when the control module 11 does not receive the reclosing signal from the circuit breaker, it indicates that the circuit breaker does not have abnormal tripping. At this time, when the control module 11 receives the opening signal from the upper computer or the opening signal from the external control device, it generates the opening control signal and sends it to the motor driving module 13.

[0106] The motor driving module 13 is specifically configured to control the closing and opening actuator 15 to perform the opening operation under the action of the opening control signal.

[0107] Optionally, the motor driving module 13 controls the closing and opening actuator 15 to perform the opening operation under the action of the opening control signal sent by the control module 11, so as to realize the opening of the circuit breaker in the normal working state.

[0108] In the embodiment, when the control module does not receive the reclosing signal from the circuit breaker, the circuit breaker does not have abnormal tripping and is in the normal working state. The control module receives the opening signal from the upper computer or the external control device, generates the opening control signal and sends it to the motor driving module, and the motor driving module controls the closing and opening actuator to perform the opening operation under the action of the opening control signal, so as to realize the opening of the circuit breaker in the normal working state.

[0109] As an optional implementation, the control module 11 is specifically configured to generate the closing control signal and send to the motor driving module 13 when the reclosing signal is not received and the closing signal from the upper computer or the closing signal from the external control device is received.

[0110] Optionally, when the control module 11 does not receive the reclosing signal from the circuit breaker, it indicates that the circuit breaker does not have abnormal tripping, and when the control module 11 receives the closing signal from the upper computer or the closing signal from the external control device, it generates the closing control signal and sends it to the motor driving module 13.

[0111] The motor driving module 13 is specifically configured to control the closing and opening actuator 15 to perform the closing operation under the action of the closing control signal.

[0112] Optionally, the motor driving module 13 controls the closing and opening actuator 15 to perform the closing operation under the action of the closing control signal sent by the control module 11, so as to realize the closing of the circuit breaker in the normal working state.

[0113] In this embodiment, when the control module does not receive the reclosing signal from the circuit breaker, the circuit breaker does not have abnormal tripping and is in the normal working state. When the control module receives the closing signal from the upper computer or the external control device, it generates the closing control signal and sends it to the motor driving module. The motor driving module controls the closing and opening actuator to perform the closing operation under the action of the closing control signal, so as to realize the closing of the circuit breaker in the normal working state.

[0114] The embodiments of the present application also provide a circuit breaker device, which comprises the electric operating mechanism of the circuit breaker and the circuit breaker.

[0115] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered by the protection scope of the present application.

Claims

1. An electric operating mechanism of a circuit breaker, characterized by comprising: The utility model relates to a kind of circuit breaker automatic reclosing mechanism, including: Control module, first signal receiving module, motor drive module and communication module; The first input end of the first signal receiving module is connected with the output end of the circuit breaker, and the output end of the first signal receiving module is connected with the first end of the control module; The first end of the communication module is connected with the second end of the control module, and the second end of the communication module is connected with the host computer communication; The control end of the control module is connected with the first input end of the motor drive module, and the output end of the motor drive module is connected with the closing and opening executor installed on the circuit breaker; The communication module is used for receiving the enable control signal and the closing and opening signal from the host computer, and sending the enable control signal and the closing and opening signal to the control module;Wherein, the enable control signal is used to indicate that the electric operating mechanism enables automatic reclosing function; The first signal receiving module is used for receiving the reclosing signal sent when the circuit breaker is in the tripping state, and sending the reclosing signal to the control module; The control module is used to generate first control signal under the action of the enable control signal and the reclosing signal and send the first control signal to the motor drive module, and generate second control signal under the action of the closing and opening signal and send the second control signal to the motor drive module; The motor drive module is used to control the closing and opening executor to perform reclosing operation under the action of the first control signal, and control the closing and opening executor to perform closing and opening operation under the action of the second control signal.

2. The mechanism of claim 1, wherein, The communication module includes a signal isolation unit and a communication unit. The first end of the signal isolation unit is connected with the second end of the control module, and the second end of the signal isolation unit is connected with the first end of the communication unit. The second end of the communication unit is connected with the host computer communication.

3. The mechanism of claim 1, wherein, The mechanism further includes a power module. The power supply end of the power module is connected with the second input end of the first signal receiving module, the third end of the communication module, the fourth end of the control module and the second input end of the motor drive module respectively. The power module is used to power the first signal receiving module, the communication module, the control module and the motor drive module.

4. The mechanism of claim 1, wherein, The mechanism further includes a second signal receiving module. The input end of the second signal receiving module is connected with external control equipment. The output end of the second signal receiving module is connected with the third end of the control module. The second signal receiving module is used to collect the digital signal state of the external control equipment and generate the closing and opening signal and send it to the control module.

5. The mechanism of claim 4, wherein, The second signal receiving module includes a signal acquisition unit. The input end of the signal acquisition unit is connected with the external control equipment, and the output end of the signal acquisition unit is connected with the third end of the control module. The signal acquisition unit is used to collect the digital signal state of the external control equipment, and send the digital signal state as the closing and opening signal to the control module.

6. The mechanism of claim 5, wherein, The control module is specifically used to generate a re-clamping control signal when it receives the re-clamping signal and the enable control signal, and to generate a second control signal when it receives a closing / opening signal from the host computer or a closing / opening signal from the external control device, and to send the re-clamping control signal and the second control signal to the motor drive module in sequence. The motor drive module is specifically used to sequentially control the closing and opening actuator to perform the re-closing operation and the closing and opening operation under the action of the re-closing control signal and the second control signal.

7. The mechanism of claim 5, wherein, The control module is specifically used to discard the re-trigger signal when it receives the re-trigger signal but does not receive the enable control signal, and to generate a re-trigger control signal and a re-trigger control signal in sequence when it receives a tripping signal and a closing signal from the host computer or a tripping signal and a closing signal from the external control device, and to send the tripping control signal and the closing control signal to the motor drive module in sequence. The motor drive module is specifically used to sequentially control the opening and closing actuators to perform opening and closing operations under the action of the opening control signal and the closing control signal.

8. The mechanism of claim 5, wherein, The control module is specifically used to generate a tripping control signal and send it to the motor drive module when it does not receive the re-trigger signal but receives a tripping signal from the host computer or from the external control device. The motor drive module is specifically used to control the closing / opening actuator to perform the opening operation under the action of the opening control signal.

9. The mechanism of claim 5, wherein, The control module is specifically used to generate a closing control signal and send it to the motor drive module when it does not receive the re-closing signal but receives a closing signal from the host computer or from the external control device. The motor drive module is specifically used to control the closing / opening actuator to perform the closing operation under the action of the closing control signal.

10. A circuit breaker device, characterized by include: The electric operating mechanism of the circuit breaker according to any one of claims 1-9, and the circuit breaker itself.

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