A residual current operated circuit breaker

Abstract

The present application discloses a residual current operated circuit breaker, including a residual current operated circuit breaker body, a main control chip electrically connected to a residual current operating module on the residual current operated circuit breaker body is provided on the residual current operated circuit breaker body; the residual current operated circuit breaker body is also provided with an electric opening and closing mechanism electrically connected to the main control chip for controlling the residual current operated circuit breaker body to open and / or close; and the main control chip is also communicatively connected to a remote controller for controlling the main control chip. Through the residual current operated circuit breaker provided by the present application, the residual current operated circuit breaker body can be remotely closed by using a remote controller, so that the residual current circuit breaker can be applied in unmanned areas.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a residual current operated circuit breaker. Background Art

[0002] Residual current operated circuit breakers can quickly cut off faulty power in a very short time, and thus have been widely used in real life. However, in the prior art, if a residual current fault occurs, the residual current operated circuit breaker will trip, the reset button on the residual current operated circuit breaker will automatically pop out, and the residual current operated circuit breaker will be in a locked state. In this case, the residual current circuit breaker cannot be reclosed, and the staff must manually press the reset button on the residual current operated circuit breaker before the residual current operated circuit breaker can be reclosed. Obviously, due to this reset method of the residual current operated circuit breaker, the residual current operated circuit breaker cannot be used in unmanned areas.

[0003] Therefore, how to enable the residual current operated circuit breaker to be used in unmanned areas is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a residual current operated circuit breaker so that the residual current operated circuit breaker can be used in unattended areas. The specific scheme is as follows:

[0005] A residual current operated circuit breaker comprises a residual current operated circuit breaker body, on which a main control chip electrically connected to a residual current action module on the residual current operated circuit breaker body is arranged; on the residual current operated circuit breaker body is also arranged an electric opening and closing mechanism electrically connected to the main control chip for controlling the residual current operated circuit breaker body to open and / or close; and the main control chip is also communicatively connected to a remote controller for controlling the main control chip.

[0006] Preferably, the remote controller is specifically a mobile terminal.

[0007] Preferably, a reset button for manually resetting the residual current operated circuit breaker body is also provided on the residual current operated circuit breaker body.

[0008] Preferably, the residual current operated circuit breaker body is also provided with a test button for simulating the opening of the residual current operated circuit breaker body.

[0009] Preferably, the residual current operated circuit breaker body is also provided with an alarm device for prompting the residual current operated circuit breaker body of a residual current fault.

[0010] Preferably, the alarm device is specifically a leakage indicator light or a buzzer.

[0011] Preferably, the main control chip is specifically an MCU.

[0012] Preferably, the main control chip is specifically a single-chip microcomputer.

[0013] Preferably, a micro switch for sensing whether the residual current action module is triggered is also provided on the residual current operated circuit breaker body, and the micro switch is electrically connected to the main control chip.

[0014] Preferably, a Hall element for sensing whether the residual current action module is triggered is also provided on the residual current operated circuit breaker body, and the Hall element is electrically connected to the main control chip.

[0015] It can be seen that in the present invention, first, a main control chip is arranged on the residual current operated circuit breaker body to realize electrical connection with the residual current action module on the residual current operated circuit breaker body, and then, an electric opening and closing mechanism is arranged on the residual current operated circuit breaker body to realize electrical connection with the main control chip and to control the residual current operated circuit breaker body to open and / or close the circuit breaker, and finally, a remote controller is arranged to communicate with the main control chip and to control the main control chip. In this way, when a residual current fault occurs, the residual current action module on the residual current operated circuit breaker body trips, at which time, the residual current action module drives the residual current operated circuit breaker body to open, and the residual current action module will feedback the corresponding electrical signal to the main control chip, and when the main control chip receives the electrical signal fed back by the residual current action module, the electric opening and closing mechanism set on the residual current operated circuit breaker body will be locked in the opening position; in this case, if the residual current operated circuit breaker is to be closed, the remote controller can send a reset signal to the main control chip set on the residual current circuit breaker body, and when the main control chip receives the reset signal sent by the remote controller, the main control chip will unlock the electric opening and closing mechanism, and after the electric opening and closing mechanism is unlocked, the electric opening and closing mechanism can control the residual current operated circuit breaker body to close. Obviously, compared with the prior art, the residual current operated circuit breaker provided by the present invention can avoid the cumbersome process that the staff needs to go to the site to manually reset the residual current circuit breaker, so that the residual current circuit breaker can be applied in unmanned areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 A structural diagram of a residual current operated circuit breaker provided by an embodiment of the present invention;

[0018] Figure 2 A structural diagram of another residual current operated circuit breaker provided by an embodiment of the present invention;

[0019] Figure 3 A structural diagram of another residual current operated circuit breaker provided in an embodiment of the present invention;

[0020] Figure 4 A structural diagram of another residual current operated circuit breaker provided in an embodiment of the present invention;

[0021] Figure 5 A structural diagram of a swing arm provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please refer to Figure 1 , Figure 1 A structural diagram of a residual current operated circuit breaker provided in an embodiment of the present invention. The residual current operated circuit breaker comprises a residual current operated circuit breaker body, on which a main control chip 11 electrically connected to a residual current operating module on the residual current operated circuit breaker body is disposed; on the residual current operated circuit breaker body, an electric opening and closing mechanism 12 electrically connected to the main control chip 11 and used to control the residual current operated circuit breaker body to open and / or close is also disposed; and the main control chip 11 is also communicatively connected to a remote controller 13 for controlling the main control chip 11.

[0024] In the present invention, in order to enable the residual current operated circuit breaker to be used in unmanned areas, first, a main control chip 11 is provided on the residual current operated circuit breaker body to realize electrical connection with the residual current operating module on the residual current operated circuit breaker body, and then, an electric opening and closing mechanism 12 that can realize electrical connection with the main control chip 11 is provided on the residual current operated circuit breaker body, that is, the residual current operated circuit breaker body is controlled to be opened and / or closed by the electric opening and closing mechanism 12, and a remote controller 13 that can realize communication connection with the main control chip 11 and is used to control the main control chip 11 is also provided.

[0025] In actual application, if a residual current fault occurs in the residual current operated circuit breaker body, that is, if a leakage occurs in the residual current operated circuit breaker body, in this case, the residual current action module on the residual current operated circuit breaker body will trip. At this time, the leakage trip coil on the electromagnet in the residual current action module will drive the residual current operated circuit breaker body to open, and since there is an electrical connection between the main control chip 11 and the residual current action module, at this time, the leakage trip coil on the electromagnet will also feedback the corresponding electromagnetic signal to the main control chip 11, that is, the electrical signal; when the main control chip 11 receives the electrical signal, it will lock the electric opening and closing mechanism 12 in the opening position, so that the residual current operated circuit breaker body cannot be closed.

[0026] In this case, if the residual current operated circuit breaker is to be closed, the remote controller 13 can send a reset signal to the main control chip 11 provided on the residual current operated circuit breaker body at a remote location, and when the main control chip 11 receives the reset signal sent by the remote controller 13, the main control chip 11 will unlock the electric opening and closing mechanism 12. It can be imagined that after the electric opening and closing mechanism 12 is unlocked, the electric opening and closing mechanism 12 can control the residual current operated circuit breaker body to close.

[0027] Obviously, with the residual current operated circuit breaker provided in this embodiment, when a residual current fault occurs in the residual current operated circuit breaker, there is no need for staff to manually reset the residual current operated circuit breaker on site, which not only reduces a large amount of human resources, but also allows the residual current operated circuit breaker provided in this embodiment to be used in many unmanned areas, such as: field weather stations, unmanned factories, deep mountains and forests and other areas with relatively complex environments.

[0028] It can be seen that in this embodiment, first, a main control chip is arranged on the residual current operated circuit breaker body to realize electrical connection with the residual current action module on the residual current operated circuit breaker body, and then, an electric opening and closing mechanism is arranged on the residual current operated circuit breaker body to realize electrical connection with the main control chip and to control the residual current operated circuit breaker body to open and / or close the circuit breaker, and finally, a remote controller is arranged to communicate with the main control chip and to control the main control chip. In this way, when a residual current fault occurs, the residual current action module on the residual current operated circuit breaker body trips. At this time, the residual current action module drives the residual current operated circuit breaker body to open, and the residual current action module will feedback the corresponding electrical signal to the main control chip. When the main control chip receives the electrical signal fed back by the residual current action module, it will lock the electric opening and closing mechanism set on the residual current operated circuit breaker body in the opening position; in this case, if the residual current operated circuit breaker is to be closed, the remote controller can send a reset signal to the main control chip set on the residual current circuit breaker body. When the main control chip receives the reset signal sent by the remote controller, the main control chip will unlock the electric opening and closing mechanism. After the electric opening and closing mechanism is unlocked, the electric opening and closing mechanism can control the residual current operated circuit breaker body to close. Obviously, compared with the prior art, the residual current operated circuit breaker provided by this embodiment can avoid the cumbersome process that the staff needs to go to the site to manually reset the residual current circuit breaker, so that the residual current circuit breaker can be used in unmanned areas.

[0029] Based on the above embodiments, this embodiment further illustrates and optimizes the technical solution. As a preferred implementation, the remote controller is specifically a mobile terminal.

[0030] It is understandable that there are various remote controllers 13 that can remotely operate the main control chip 11 on the residual current operated circuit breaker body, such as: computers, industrial computers, host computers, etc. In this embodiment, in order to improve the operating experience of the staff in the process of using the residual current operated circuit breaker, the remote controller 13 is set as a mobile terminal.

[0031] It is conceivable that when the remote controller 13 is set as a mobile terminal, the staff can carry the mobile terminal with them, and can also operate the residual current operated circuit breaker at any position far from the residual current operated circuit breaker through the mobile terminal, which significantly improves the convenience of the staff in operating the residual current operated circuit breaker. Specifically, in actual application, the mobile terminal can be set as a mobile phone, a tablet computer or a handheld device, and this embodiment does not limit the specific form of the mobile terminal.

[0032] It can be seen that the technical solution provided by this embodiment can further improve the operating experience of the staff in the process of using the residual current operated circuit breaker.

[0033] Based on the above embodiments, this embodiment further explains and optimizes the technical solution. Please refer to Figure 2 , Figure 2 This is a structural diagram of another residual current operated circuit breaker provided by an embodiment of the present invention. Specifically, a reset button 14 for manually resetting the residual current operated circuit breaker body is also provided on the residual current operated circuit breaker body.

[0034] In this embodiment, in order to further improve the safety of the residual current operated circuit breaker during use, a reset button 14 for manually resetting the residual current operated circuit breaker may be provided on the residual current operated circuit breaker body.

[0035] In this way, when a residual current fault occurs in the residual current operated circuit breaker, the staff can not only reset the residual current operated circuit breaker body remotely through the remote controller 13, but also reset the residual current operated circuit breaker body on site through the reset button 14 provided on the residual current operated circuit breaker body. In this way, it is possible to avoid the situation where the remote controller 13 cannot control the residual current operated circuit breaker when a fault occurs in the remote controller 13, so that the residual current operated circuit breaker body is always in the open position and cannot be closed.

[0036] It can be seen that the technical solution provided by this embodiment can further ensure the safety of the residual current operated circuit breaker during use.

[0037] Based on the above embodiments, this embodiment further explains and optimizes the technical solution. Please refer to Figure 2 Specifically, the residual current operated circuit breaker body is also provided with a test button 15 for simulating the opening of the residual current operated circuit breaker body.

[0038] In this embodiment, in order to ensure the safety of the residual current operated circuit breaker during use, a test button 15 for simulating the opening of the residual current operated circuit breaker body is also provided on the residual current operated circuit breaker body, that is, by pressing the test button 15 provided on the residual current operated circuit breaker body, a residual current fault of the residual current operated circuit breaker body is simulated.

[0039] Specifically, when the staff presses the test button 15 set on the residual current operated circuit breaker body, the main control chip 11 will receive the corresponding test signal, and the main control chip 11 will trigger the residual current action module to trip. At this time, the leakage trip coil on the electromagnet in the residual current action module will drive the residual current operated circuit breaker body to open. At the same time, the main control chip 11 will also lock the electric opening and closing mechanism 12 set on the residual current operated circuit breaker body in the open position, thereby simulating the situation of the residual current operated circuit breaker when a residual current fault occurs.

[0040] Obviously, through the technical solution provided in this embodiment, the staff can press the test button to detect in real time whether the residual current operated circuit breaker can work normally when a residual current fault occurs, thereby relatively ensuring the safety of the residual current operated circuit breaker during use.

[0041] Based on the above embodiments, this embodiment further explains and optimizes the technical solution. Figure 2 Specifically, the residual current operated circuit breaker body is also provided with an alarm device 16 for prompting the residual current operated circuit breaker body of a residual current fault.

[0042] It can be imagined that by providing an alarm device 16 on the residual current operated circuit breaker body and using the alarm device 16 to prompt the residual current circuit breaker body of a residual current fault, the staff can be informed of the working status of the residual current operated circuit breaker in time. In this way, the staff can take corresponding remedial measures for the residual current operated circuit breaker to avoid the occurrence of accidents.

[0043] It can be seen that the technical solution provided by this embodiment can further ensure the safety and reliability of the residual current operated circuit breaker during use.

[0044] As a preferred implementation, the alarm device 16 is specifically a leakage indicator light or a buzzer.

[0045] Specifically, the alarm device 16 provided on the residual current operated circuit breaker body can be set as a leakage indicator light or a buzzer, that is, the residual current fault occurs in the residual current operated circuit breaker body by flashing the leakage indicator light or beeping the buzzer.

[0046] Moreover, because the leakage indicator light or buzzer has the advantages of simple structure, small size, and low cost, when the alarm device 16 is set as a leakage indicator light or a buzzer, not only the structural complexity of the residual current operated circuit breaker will be relatively reduced, but also the cost of the alarm device 16 will be relatively reduced.

[0047] It can be seen that the technical solution provided by this embodiment can make the setting method of the alarm device more flexible and diverse.

[0048] Based on the above embodiments, this embodiment further illustrates and optimizes the technical solution. Specifically, the main control chip 11 is specifically an MCU.

[0049] It can be understood that MCU (Microcontroller Unit) is a chip with powerful logical computing functions. Therefore, in this embodiment, the main control chip 11 can be set to MCU. Moreover, since MCU also has the advantages of small size and low price, when the main control chip 11 in the residual current operated circuit breaker is set to MCU, not only can the information interaction time between the main control chip 11 and the remote controller 13 be shortened, but also the space occupied by the main control chip 11 on the residual current operated circuit breaker body and the cost can be relatively reduced.

[0050] It can be seen that the technical solution provided by this embodiment can not only ensure the feasibility of the residual current operated circuit breaker in the design process, but also relatively reduce the design cost of the residual current operated circuit breaker.

[0051] Based on the above embodiments, this embodiment further illustrates and optimizes the technical solution. Specifically, the main control chip 11 is a single-chip microcomputer.

[0052] In practical applications, in addition to setting the main control chip 11 as an MCU, the main control chip 11 can also be set as a single-chip microcomputer (Microcontrollers), because a single-chip microcomputer is a central processing unit with data processing capabilities, a random access memory, a read-only memory, a variety of I / O ports and an analog conversion circuit integrated into a silicon chip using ultra-large-scale integrated circuit technology, thereby making the single-chip microcomputer have powerful logical computing capabilities. Therefore, in this embodiment, this attribute of the single-chip microcomputer can be used to set the main control chip 11 as a single-chip microcomputer, so that the main control chip 11 can control the electric opening and closing mechanism 12 and exchange information with the remote controller 13.

[0053] It can be seen that the technical solution provided by this embodiment can not only make the configuration of the main control chip more flexible and diverse, but also further improve the customer experience of users in the process of using the residual current operated circuit breaker.

[0054] Based on the above embodiments, this embodiment further illustrates and optimizes the technical solution. Specifically, a micro switch for sensing whether the residual current action module is triggered is also provided on the residual current operated circuit breaker body, and the micro switch is electrically connected to the main control chip 11.

[0055] In this embodiment, a micro switch for sensing whether the residual current action module is triggered may be provided on the residual current operated circuit breaker body, that is, the main control chip 11 controls the electric opening and closing mechanism 12 through the electrical signal triggered by the micro switch.

[0056] Please refer to Figure 3 , Figure 3 A structural diagram of another residual current operated circuit breaker provided in an embodiment of the present invention. Specifically, a micro switch can be set in the electromagnet linkage mechanism of the residual current action module, so that when a residual current fault occurs in the residual current operated circuit breaker body, the leakage tripping coil on the electromagnet in the residual current action module is actuated, which will cause the micro switch to be linked, that is, when the leakage tripping coil on the electromagnet is actuated, the residual current operated circuit breaker body will trip, and the electromagnet will start to move under the action of the electromagnetic field, and at the same time drive the swing arm to move, at this time, the micro switch will be triggered, and a corresponding electrical signal will be generated and fed back to the main control chip 11.

[0057] When the main control chip 11 receives the electrical signal sent by the micro switch, the main control chip 11 will lock the electric opening and closing operating mechanism in the opening position. At this time, the residual current operated circuit breaker body cannot perform the closing operation. If the residual current operated circuit breaker needs to be reset, at this time, the remote controller 13 can send a reset signal to the main control chip 11. When the main control chip 11 receives the reset signal sent by the remote controller 13, the main control chip 11 will unlock the electric opening and closing mechanism 12. After the electric opening and closing mechanism 12 is unlocked, the residual current operated circuit breaker body can be closed.

[0058] It can be seen that, through the technical solution provided in this embodiment, the residual current operated circuit breaker can be locked in the open position by the electrical signal triggered by the micro switch.

[0059] Based on the above embodiments, this embodiment further illustrates and optimizes the technical solution. Specifically, a Hall element for sensing whether the residual current action module is triggered is also provided on the residual current operated circuit breaker body, and the Hall element is electrically connected to the main control chip 11.

[0060] In practical applications, a Hall element for sensing whether the residual current action module is triggered may be provided on the residual current operated circuit breaker body, that is, the main control chip 11 controls the electric opening and closing mechanism 12 through the electrical signal triggered by the Hall element.

[0061] Please refer to Figure 4 , Figure 4A structural diagram of another residual current operated circuit breaker provided in an embodiment of the present invention. Specifically, the Hall element can be set in the electromagnet linkage mechanism of the residual current action module, so that when a residual current fault occurs in the residual current operated circuit breaker body, the leakage tripping coil on the electromagnet in the residual current action module is actuated, which causes the Hall element to be triggered, that is, when the leakage tripping coil on the electromagnet is actuated, the residual current operated circuit breaker body will trip, and the electromagnet will start to move under the action of the electromagnetic field, driving the swing arm to move at the same time. Please refer to Figure 5 , Figure 5 The structural diagram of the swing arm provided by the embodiment of the present invention is as follows: Figure 5 It can be seen that a magnet is provided on the swing arm. When the magnet moves to the bottom of the Hall element, the Hall element will detect the magnet. At this time, the Hall element will be triggered, and the Hall element will feed back the triggered electrical signal to the main control chip 11.

[0062] When the main control chip 11 receives the electrical signal triggered by the Hall element, the main control chip 11 will lock the electric opening and closing operating mechanism in the opening position. At this time, the residual current operated circuit breaker body cannot perform the closing operation. If the residual current operated circuit breaker needs to be reset, at this time, the remote controller 13 can send a reset signal to the main control chip 11. When the main control chip 11 receives the reset signal sent by the remote controller 13, the main control chip 11 will unlock the electric opening and closing mechanism 12. After the electric opening and closing mechanism 12 is unlocked, the residual current operated circuit breaker body can be closed.

[0063] It can be seen that through the technical solution provided in this embodiment, the residual current operated circuit breaker can also lock the residual current operated circuit breaker body in the open position through the electrical signal triggered by the Hall element, so that the residual current operated circuit breaker can be applied in more practical scenarios.

[0064] To summarize, through the residual current operated circuit breaker provided in the present application, the residual current operated circuit breaker can be locked in the open position by the electromagnetic signal triggered by the leakage tripping coil on the electromagnet in the residual current action module, or by the electrical signal triggered by the micro switch, or by the electrical signal triggered by the Hall element, thereby making the triggering method of the residual current operated circuit breaker more flexible and diverse.

[0065] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can refer to each other. Finally, it should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0066] The above is a detailed introduction to a residual current operated circuit breaker provided by the present invention. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for a general technician in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A residual current operated circuit breaker, comprising a residual current operated circuit breaker body, characterized in that: The residual current operated circuit breaker body is provided with a main control chip electrically connected to the residual current action module on the residual current operated circuit breaker body; the residual current operated circuit breaker body is also provided with an electric opening and closing mechanism electrically connected to the main control chip for controlling the residual current operated circuit breaker body to open and / or close; and the main control chip is also communicatively connected to a remote controller for controlling the main control chip; the residual current operated circuit breaker body is also provided with a micro switch for sensing whether the residual current action module is triggered, and the micro switch is electrically connected to the main control chip; the micro switch is arranged on the residual current operated circuit breaker body. In the electromagnet linkage mechanism of the residual current action module, when a residual current fault occurs in the residual current action circuit breaker body, the micro switch is linked and a corresponding electrical signal is generated to be fed back to the main control chip; the residual current action circuit breaker body is also provided with a Hall element for sensing whether the residual current action module is triggered, and the Hall element is electrically connected to the main control chip; the Hall element is arranged in the electromagnet linkage mechanism of the residual current action module, so that when a residual current fault occurs in the residual current action circuit breaker body, the Hall element is triggered and a corresponding electrical signal is generated to be fed back to the main control chip; The remote controller is specifically a mobile terminal; the residual current operated circuit breaker body is also provided with a reset button for manually resetting the residual current operated circuit breaker body; The residual current operated circuit breaker body is also provided with a test button for simulating the opening of the residual current operated circuit breaker body; when the test button is triggered, the main control chip will trigger the residual current action module to trip, at which time the leakage tripping coil on the electromagnet in the residual current action module will drive the residual current operated circuit breaker body to open, and at the same time, the main control chip will also lock the electric opening and closing mechanism provided on the residual current operated circuit breaker body in the opening position, thereby simulating the situation of the residual current operated circuit breaker when a residual current fault occurs; by pressing the test button, it is possible to detect in real time whether the residual current operated circuit breaker can work normally when a residual current fault occurs, thereby ensuring the safety of the residual current operated circuit breaker during use; The residual current operated circuit breaker body is also provided with an alarm device for prompting the residual current operated circuit breaker body of a residual current fault; the alarm device is specifically a leakage indicator light or a buzzer; the main control chip is specifically an MCU or a single chip microcomputer.

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