Circuit control system and method, and switches including circuit control system

Abstract

This invention belongs to the field of line protection and control, specifically relating to a circuit control system and method, as well as a switch including the circuit control system. It includes: a circuit conduction system for realizing line overload control, manual connection, and manual disconnection; a detection control system for detecting the state of the circuit conduction system and controlling the drive system; and a drive system for driving the circuit conduction system from the connected state to the disconnected state.

Description

Technical Field

[0001] This invention belongs to the field of circuit protection and control, specifically relating to a circuit control system and method, as well as a switch including the circuit control system. Background Technology

[0002] In related technologies, the most common circuit control system uses bimetallic or other thermo-deformable alloys as a single driving method to control the circuit switching. Due to the temperature deformation characteristics of the thermo-deformable alloy, this control method may have a delay in protection action within a certain control range, which is not conducive to the protection requirements of the system.

[0003] To address the issue of protection delay in thermosensitive deformation alloys within a specific range, related technologies introduce electromagnetic induction coils into the control system to control the deformation of the thermosensitive deformation alloy. However, this method cannot adjust the current control range and cannot be specifically matched with different systems. Summary of the Invention

[0004] Purpose of the invention: To provide a circuit control system and method, as well as a switch including the circuit control system, to meet the conventional line protection requirements and to adjust the range of control current in the line according to the needs of the entire power distribution system.

[0005] Technical solution:

[0006] In a first aspect, a circuit control system is provided, comprising:

[0007] The circuit conduction system is used to realize line overload control, manual connection and manual disconnection;

[0008] The detection and control system is used to detect the state of the circuit conduction system and control the drive system.

[0009] A drive system is used to drive a circuit to switch from an on state to an off state.

[0010] Furthermore, the circuit conduction system includes: a control component, a conduction protection component, two power supply / load connection components, and a position detection component, wherein,

[0011] The control component is used to control the connection and disconnection of the circuit conduction system, and to indicate the status of the circuit conduction system when the circuit conduction system is disconnected;

[0012] The continuity protection component is used to connect the two power supply / load connection components to the power supply and the load respectively when the power distribution system is working normally. When an overcurrent or short circuit occurs in the power distribution system, the component deforms and disconnects the two power supply / load connection components from the power supply and the load respectively.

[0013] The power / load connection components are used to connect to the power supply and the load, respectively.

[0014] The position detection component is used to detect the position of the continuity protection component and transmit the status signal of the circuit continuity system to the upper-level system when the continuity protection component is disconnected from the two power supply / load connection components.

[0015] Furthermore, the detection and control system includes: a circuit detection module, a calculation and setting module, and a drive module, wherein,

[0016] The circuit detection module is used to detect the state of the circuit conduction system;

[0017] The calculation and setting module is used to control the calculation range and perform state calculations according to the state of the circuit conduction system.

[0018] The driver module is used to control the drive system based on the results of state calculations.

[0019] Furthermore, the circuit detection module includes: a main circuit conduction status information acquisition section, a main circuit current sensing section, a main circuit voltage detection section, and a main circuit operating temperature detection section, wherein,

[0020] The main circuit conduction status information acquisition section is used to acquire the voltage signal of the circuit conduction system and transform it into the function start and stop signals of the protection judgment section.

[0021] The voltage signal of the circuit conduction system detected by the main circuit voltage detection section and the temperature signal of the circuit conduction system detected by the main circuit operating temperature detection section are provided as reference messages to the calculation and setting module. The reference messages are used to determine whether the current working environment is normal, so as to serve as the basis for whether the calculation and setting module can work normally.

[0022] The main circuit current sensing section is used to detect the current intensity of the circuit conduction system, and amplify and condition it into a usable analog signal as the current intensity signal. The magnitude of this current intensity signal characterizes the current magnitude of the circuit conduction system.

[0023] Furthermore, the calculation and settings module includes:

[0024] The gear setting section is used to generate a required reference current range signal using DIP switches, which serves as a reference signal.

[0025] The protection judgment section is used to determine the relative magnitude of the current intensity signal and the reference signal, and outputs a drive signal based on the judgment result.

[0026] Furthermore, the protection judgment part is specifically used for:

[0027] If the protection judgment section is enabled, it compares the amplitude of the current intensity signal provided by the main circuit current sensing section with the reference signal provided by the range setting section. If the amplitude of the current intensity signal is greater than the currently set reference signal, the protection judgment section outputs a high level to instruct the electric drive section to drive the drive system. If the amplitude of the current intensity signal is not greater than the currently set reference signal, the protection judgment section outputs a low level and does not instruct the electric drive section to operate.

[0028] Furthermore, the driver module includes:

[0029] The power conversion section is used to extract electrical energy from the circuit conduction system and convert it into a stable DC power supply to provide power to the entire circuit.

[0030] The energy storage section stores the electrical energy provided by the power conversion section, providing electrical energy for the electric drive section to output drive energy; the electric drive section is used to drive the drive system to operate when it receives a drive signal, disconnecting the circuit and connecting the system to achieve instantaneous protection function.

[0031] Furthermore, the drive system includes: a motor, a transmission, and a drive unit, wherein,

[0032] The motor is used to receive signals from the drive module and drive the gearbox to move the drive end.

[0033] A gearbox is used to adjust the speed and direction of the motor and control the movement of the drive end.

[0034] The driving end is used to release the latching state of the control components and conduction protection components in the circuit conduction system, causing the circuit conduction system to change from the connected state to the disconnected state.

[0035] In a second aspect, a switch is provided, comprising a circuit control system as shown in any one of claims 1 to 8.

[0036] Thirdly, a circuit control method is provided for controlling the on / off state of the aforementioned circuit control system, the method comprising:

[0037] Step S1: The detection and control system acquires the status information of the circuit conduction system;

[0038] Step S2: The detection and control system acquires setting information;

[0039] Step S3: The detection and control system determines whether there is a circuit breaking control requirement for the circuit conduction system based on the status information and setting information of the circuit conduction system; if there is a circuit breaking requirement, the detection and control system controls the drive system to cut off the circuit conduction system.

[0040] Further, step S3 specifically includes:

[0041] S31: If there is no circuit breaker control requirement, the detection and control system will not issue a control signal and will not control the drive system to operate. In this mode, if the current in the line exceeds the deformation current, the continuity protection component will deform beyond the latching amount of the same control component, and the continuity protection component will disconnect the power supply and the load. If the current in the line does not exceed the deformation current, although the continuity protection component will also deform, the amount of deformation will not exceed the latching amount of the same control component, and the continuity protection component will continue to keep the power supply and the load connected.

[0042] S32: If there is a circuit breaker control requirement, the detection and control system sends a control signal to control the drive system to operate and automatically reset the drive end after the operation is completed; in this mode, the operation of the drive system causes the continuity protection component to trip with the control component, thereby disconnecting the power supply and the load;

[0043] S33: When the continuity protection component disconnects the power supply and load, the position detection component detects the disconnection status of the entire circuit continuity system and reports the disconnection status of the circuit continuity system.

[0044] Furthermore, it also includes: in the event of a short circuit, the conduction protection component in the circuit conduction system deforms and disconnects the two power supply / load connection components from the power supply and the load.

[0045] Furthermore, it also includes: by mechanically pulling the control component in the circuit conduction system, the control component and the conduction protection component change from a latch to a trip, cutting off the two power / load connection components from the power supply and the load.

[0046] Furthermore, it also includes: by mechanically pressing the circuit to activate the control component in the system, the control component and the conduction protection component are changed from tripping to hooking, connecting the two power / load connection components to the power supply and load.

[0047] Beneficial effects:

[0048] This application combines mechanical, electrical control, and detection technologies to achieve rapid power outages in power distribution systems based on their actual needs. This reduces the disconnection delays inherent in circuit control systems that rely solely on a single heat-sensitive element for protection. The implementation of this invention enhances the controllability of the entire power distribution system, making it more intelligent, reliable, and energy-efficient.

[0049] In this application, a combination of mechanical, electrical control and detection methods enables the switch to have manual on, manual off, protection off and control off functions.

[0050] The manual activation method allows operators to close the product manually. Simultaneously, operators can obtain product activation and deactivation information based on the status of the control components within the switch.

[0051] Manual disconnection allows operators to disconnect the product manually, facilitating the disconnection of control nodes and segmented inspection of the line during the entire line maintenance process.

[0052] The product has a protective disconnect function, which enables the switch to have conventional thermal protection functions, ensuring that the entire switch can achieve overcurrent or short circuit protection.

[0053] The product features a control-disconnect function, enabling the switch to detect its own current, voltage, internal temperature, and other information. It can also obtain the electrical energy required for the control process from within the switch itself. Subsequently, it performs calculations based on its own information and preset settings, determining whether to initiate a control-disconnect action based on the calculation results. This control-disconnect method can be integrated with actual control requirements, avoiding the delay in thermal protection disconnection within a defined current range. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a block diagram of a circuit control system according to an embodiment of the present invention;

[0056] Figure 2 This is a block diagram of a circuit conduction system according to an embodiment of the present invention;

[0057] Figure 3 This is a block diagram of a detection and control system according to an embodiment of the present invention;

[0058] Figure 4 This is a block diagram of a detection and control system according to an embodiment of the present invention;

[0059] Figure 5 This is a block diagram of a drive system according to an embodiment of the present invention;

[0060] Figure 6 This is a flowchart of a circuit control method according to an embodiment of the present invention. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] The features and illustrative embodiments of various aspects of the present invention will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific setups and methods set forth below, but covers any improvements, substitutions, and modifications to structures, methods, and devices without departing from the spirit of the invention. Well-known structures and techniques are not shown in the drawings and the following description to avoid unnecessarily obscuring the invention.

[0063] In the description of this invention, it should be noted that the directions or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing and simplifying the invention, and should not be construed as limiting the invention. Furthermore, the use of ordinal numbers (e.g., "first and second," etc.) is for distinguishing objects and is not limited to this order, and should not be construed as indicating or implying relative importance.

[0064] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, encompassing both direct connection and indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0065] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other, and the various embodiments can be referenced and cited in each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0066] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0067] The following is for reference. Figures 1-6 A circuit control system according to a first aspect embodiment of the present invention is described.

[0068] Figure 1 This is a block diagram of a circuit control system according to an embodiment of the present invention, such as... Figure 1 As shown, the circuit control system of this embodiment includes: a circuit conduction system, a detection control system, and a drive system.

[0069] The circuit conduction system is used to realize line overload control, manual connection and manual disconnection.

[0070] The detection and control system is used to detect the state of the circuit conduction system and control the drive system. Its control process is mainly implemented by sending control signals to the drive system, which can change the circuit control system from the on state to the off state.

[0071] The drive system is capable of switching the circuit control system from an on state to an off state; its control process is mainly implemented through driving force. The detection control system checks information about the circuit's conduction system, such as on / off status, current, voltage, and internal temperature.

[0072] Figure 2 The diagram shows a circuit conduction system, which includes a control component, a conduction protection component, two power supply / load connection components, and a position detection component.

[0073] The control unit is capable of driving the connection and disconnection of the continuity protection component and the two power / load connection components in the circuit continuity system, and indicating the status of the circuit continuity system when the continuity protection component is disconnected from the two power / load connection components.

[0074] The disconnection process is as follows: When the continuity protection component in the entire circuit continuity system is separated from the two power / load connection components, the circuit continuity system is disconnected. By pressing or driving the control component, the control component is hooked onto the continuity protection component, which then contacts the two power / load connection components and remains connected, thereby connecting the power supply to the load and realizing line continuity.

[0075] The process of switching on and off is as follows: When the continuity protection component is connected to the power supply / load connection component, the control component can be disconnected from the continuity protection component by pulling, tossing or other driving methods, causing the continuity protection component to separate from the two power supply / load connection components, thereby disconnecting the power supply from the load and realizing the disconnection of the line current.

[0076] The continuity protection component is used to keep the circuit continuity system conducting, and deforms to disconnect the circuit continuity system when an overcurrent or short circuit occurs in the circuit continuity system.

[0077] When the continuity protection component is connected to two power / load connection components, if the current through the continuity protection component is too large or a short circuit occurs, the continuity protection component will deform, and the control component will trip with the continuity protection component, causing the connection state between the continuity protection component and the power / load connection components to change, thereby disconnecting the power supply from the load.

[0078] Two power / load connection components are provided, which are connected to the power source and the load respectively. Specifically, the power / load connection components are connected to the power source and the load respectively by means of screws, plugs, or soldering to achieve circuit continuity.

[0079] The position detection component is used to detect the position of the conduction protection component and transmit the status information of the circuit control system to the higher-level system;

[0080] When the continuity protection component is connected to the power / load connection component, the position detection component is disconnected from the continuity protection component; when the continuity protection component is disconnected from both power / load connection components, the position detection component is connected to the continuity protection component. The position detection component can be structured as a spring probe, micro switch, position sensor, pressure sensor, etc.

[0081] Figure 3 The block diagram of the detection and control system is shown. The detection and control system includes a circuit detection module, a calculation and setting module, and a drive module.

[0082] The circuit detection module can detect the status information of the circuit conduction system, such as current, voltage, and internal temperature. The circuit detection module includes: a main circuit conduction status information acquisition section, a main circuit current sensing section, a main circuit voltage detection section, and a main circuit operating temperature detection section.

[0083] The calculation and setting module can control the calculation range and perform state calculations; the calculation and setting module includes: gear setting section and protection judgment section.

[0084] Figure 4 This is a block diagram of a detection and control system according to an embodiment of the present invention, wherein the circuit detection module includes: a main circuit conduction status information acquisition part, a main circuit current sensing part, a main circuit voltage detection part, and a main circuit operating temperature detection part.

[0085] The main circuit conduction status information acquisition section collects the voltage signal of the circuit conduction system and performs transformation processing. When the transformed signal is greater than 8V, the circuit conduction system is considered to be conducting, serving as the function start signal for the protection judgment section. When the signal is lower than 8V, the circuit conduction system is considered to be disconnected, serving as the function stop signal for the protection judgment section. The voltage signal detected by the main circuit voltage detection section and the temperature signal detected by the main circuit operating temperature detection section are provided as reference messages to the protection judgment section. The reference messages are used to determine whether the current operating environment is normal, serving as the basis for whether the protection judgment section should operate normally.

[0086] The main circuit current sensing section detects the current intensity of the circuit conduction system, amplifies and conditions it into a usable analog signal, and uses the amplitude of this analog signal to characterize the current magnitude of the circuit conduction system.

[0087] The main circuit voltage detection section uses a voltage divider method to acquire the voltage signal of the circuit conduction system, amplifies and conditions it into a usable analog signal, and uses the amplitude of this analog signal to characterize the voltage magnitude of the circuit conduction system. The waveform of this voltage signal is then provided as reference information to the protection judgment section.

[0088] The main circuit operating temperature detection section uses a thermistor to acquire the actual operating temperature of the circuit conduction system and converts this temperature signal into an analog signal. The amplitude of this analog signal represents the operating temperature of the circuit conduction system. This temperature signal is then provided as reference information to the protection judgment section.

[0089] The drive module can receive signals from the calculation and setting module and control the movement of the drive system.

[0090] The gear setting section uses a DIP switch to select a desired reference current range signal as the setting reference signal for the entire circuit. If the protection judgment section is enabled, it compares the amplitude of the current intensity signal provided by the main circuit current sensing section with the reference signal provided by the gear setting section. If the amplitude of the current intensity signal is greater than the currently set reference signal, the protection judgment section outputs a high level to instruct the electric drive section to drive the drive system. If the amplitude of the current intensity signal is not greater than the currently set reference signal, the protection judgment section outputs a low level and does not instruct the electric drive section to operate.

[0091] The power conversion section adopts a non-isolated power extraction design, extracting electrical energy from the circuit conduction system and converting it into a stable DC 12V power supply to provide power for the detection and control system; the energy storage section stores the electrical energy provided by the power conversion section and provides power for the electric drive section to output drive energy; when the electric drive section receives a drive signal, the electric drive section drives the drive system to operate, disconnecting the circuit conduction system and realizing the instantaneous protection function.

[0092] Figure 5 This is a block diagram of a drive control system, which includes a motor, a transmission, and a drive unit.

[0093] The motor can receive signals from the drive module and drive the gearbox to move the drive end.

[0094] The gearbox can adjust the speed and direction of the motor and control the movement of the drive end.

[0095] The driving end can drive the circuit conduction system, control the circuit conduction system to change from the on state to the off state, and automatically reset after the circuit conduction system is disconnected;

[0096] When the entire circuit conduction system is in the on state, the motor receives the control signal sent by the detection and control system and moves. The motor drives the gearbox to move, which in turn drives the drive end to move. The drive end can move by rotation, linear translation, up and down movement or swinging. The drive end drive control component is separated from the conduction protection component, which causes the conduction protection component to be separated from the power supply / load connection component, thus achieving the purpose of disconnecting the power supply from the load.

[0097] Through the coordinated implementation of the aforementioned related systems, the circuit control system in this invention is adjusted from a single-drive protection control mode to a mode that adjusts the circuit protection control range according to needs by using a range setting. This can solve the problem that the temperature deformation characteristics of the thermosensitive deformation alloy will cause a delay in protection action in a specific control range, and realize the regulation and controllability of the entire power distribution system.

[0098] Based on the circuit control system of the above embodiments, the second aspect of the present invention proposes a switch, which includes the circuit control system of the above embodiments. Of course, the switch also includes other components and systems, which will not be listed here.

[0099] According to the present invention, the detection and control system can set the protection range of the circuit as needed. Within a specific current protection range, the switch can quickly disconnect, achieving rapid protection of the entire switch within a specific current range, thus avoiding the situation where the conduction protection component composed of a single sensitive component has a protection delay within the specific current range.

[0100] Based on the circuit control system of the above embodiments, a third aspect of the present invention proposes a circuit control method, which is described below with reference to... Figures 1 to 5 The circuit control method of the present invention is described in an embodiment.

[0101] Figure 6 This is a flowchart of a circuit control method according to an embodiment of the present invention, such as... Figure 6 As shown, the circuit control method includes:

[0102] S1: The circuit detection module acquires the status information of the circuit conduction system.

[0103] S2: The calculation and setting module obtains setting information.

[0104] S3: The calculation and setting module determines whether the circuit conduction system has a circuit breaker control requirement based on the status information and setting information of the circuit conduction system; if there is a circuit breaker requirement, it controls the drive system to disconnect the circuit conduction system.

[0105] The status information of the circuit conduction system, such as current, voltage, and internal temperature, is used to subsequently determine whether the circuit conduction system requires circuit breaking control. The setting information mainly concerns the range of the control current.

[0106] S3 specifically refers to:

[0107] S31: If there is no circuit breaker control requirement, the detection and control system does not issue a control signal and does not control the drive system to operate. In this mode, if the current in the line exceeds the deformation current, the conduction protection component deforms beyond the tripping amount of the same control component, and the conduction protection component disconnects the power supply and load; if the current in the line does not exceed the deformation current, although the conduction protection component will also deform, the deformation amount does not exceed the tripping amount of the same control component, and the conduction protection component will continue to keep the power supply and load connected; where the deformation current is the current corresponding to the rated conduction capacity of the product, exceeding the deformation current will cause the sensitive element inside the circuit breaker to deform due to heat, thereby triggering the tripping mechanism and causing the circuit breaker to trip and disconnect the circuit. The deformation current is related to the overload protection function of the circuit breaker.

[0108] S32: If a circuit breaker control is required, the detection and control system sends a control signal to control the drive system to operate, and the drive end automatically resets after the operation is completed. In this mode, the drive system operation causes the continuity protection component to trip with the control component, thereby disconnecting the power supply and load;

[0109] S33: When the continuity protection component disconnects the power supply and load, the position detection component detects the disconnection status of the entire circuit continuity system and reports the disconnection status of the circuit continuity system.

[0110] Specifically, customers can adjust the control range of the detection and control system by using the calculation and setting modules in the detection and control system according to the needs of the power distribution system, thereby better matching it with the power distribution system.

[0111] In one embodiment of the present invention, the state of the switch includes an on state, a manual off state, a protection off state, and a control off state.

[0112] If the switch is in the ON state, the control component and the continuity protection component in the circuit conduction system are in a latched state, maintaining a certain latching amount. At this time, the current flows through the power supply to the power / load connection component, and then through the continuity protection component to the power / load connection component connected to the load, thus realizing the conduction of the entire circuit control system. The position detection component is separated from the continuity protection component. The continuity protection component will deform due to the current, but the deformation range is small, so that the control component and the continuity protection component are still in the latched state. At this time, the detection control system detects the circuit conduction system information through the circuit detection module, sends it to the calculation and setting module, and performs calculations based on the setting information. The calculation results show that the drive module does not need to send a control signal to the motor of the drive control system. At this time, the motor does not run, and the drive end remains in the initial position.

[0113] The main process of manually disconnecting the switch is as follows: By manually pulling or driving the control component in the circuit conduction system, the control component and the conduction protection component change from a latched state to a tripped state. At this time, the conduction protection component is disconnected from the power supply / load connection component, and current flows through the power supply to the power supply / load connection component, but cannot flow with the load, thus disconnecting the entire circuit control system. In the disconnected state, the position detection component contacts the conduction protection component and reports the disconnection information of the conduction protection component. At this time, the detection control system detects the disconnection information of the circuit conduction system through the circuit detection module, causing the calculation and setting module to stop calculation and the drive control system to stop operating.

[0114] The main operation process of the switch protection disconnection is as follows: When in the ON state, the control component and the continuity protection component in the circuit conduction system are in the latched state, thus enabling the entire circuit control system to conduct. When the current through the continuity protection component increases, but does not reach or exceed the setting range of the calculation and setting module, the continuity protection component will deform significantly due to the current, disrupting the latched state of the control component and the continuity protection component. As a result, the circuit conduction system changes from the ON state to the OFF state, and the entire circuit control system disconnects. At this time, the detection control system detects the disconnection information of the circuit conduction system through the circuit detection module, causing the calculation and setting module to refrain from calculation and the drive control system to remain inactive.

[0115] The main operation process of the switch control in the off state is as follows: When in the on state, the control component and the continuity protection component in the circuit conduction system are in the latched state, thus realizing the conduction of the entire circuit control system. When the continuity protection component reaches the set range of the calculation and setting module, the detection control system detects the information of the circuit conduction system through the circuit detection module, sends it to the calculation and setting module, and performs calculations based on the setting information. The calculation results indicate that the drive module needs to send a control signal to the motor of the drive control system. At this time, the motor starts running, driving the gearbox to move, which in turn moves the drive end. The drive end acts on the control component in the circuit conduction system, causing the latched state of the control component and the continuity protection component to be broken, thereby separating the continuity protection component from the power supply / load connection component. Thus, the circuit conduction system changes from the on state to the off state, and the entire circuit control system is disconnected. During this process, the continuity protection component also deforms, but its deformation time is longer than the action time of the detection control system and the drive system. Before the latched state of the control component and the continuity protection component is broken due to its own deformation, the entire circuit conduction system has already completed the transition from the on state to the off state.

[0116] In summary, the circuit control system, switch, and circuit control method of the present invention can achieve rapid control of the switch under a defined current condition, reduce the disconnection delay caused by a single heat-sensitive element driving the switch, improve the controllability of the system, make the entire switch more intelligent, and increase energy utilization.

[0117] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0118] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A circuit control system, characterized in that, include: The circuit conduction system is used to realize line overload control, manual connection and manual disconnection; The detection and control system is used to detect the state of the circuit conduction system and control the drive system. A drive system is used to switch the conduction system of a circuit from an on state to an off state. The circuit conduction system includes: a control component, a conduction protection component, two power / load connection components, and a position detection component, wherein... The control component is used to control the connection and disconnection of the circuit conduction system, and to indicate the status of the circuit conduction system when the circuit conduction system is disconnected; The continuity protection component is used to connect the two power supply / load connection components to the power supply and the load respectively when the power distribution system is working normally. When an overcurrent or short circuit occurs in the power distribution system, the component deforms and disconnects the two power supply / load connection components from the power supply and the load respectively. The power / load connection components are used to connect to the power supply and the load, respectively. The position detection component is used to detect the position of the continuity protection component and transmit the status signal of the circuit continuity system to the upper-level system when the continuity protection component is disconnected from the two power supply / load connection components. The detection and control system includes: a circuit detection module, a calculation and setting module, and a drive module, wherein... The circuit detection module is used to detect the state of the circuit conduction system; The calculation and setting module is used to control the calculation range and perform state calculations according to the state of the circuit conduction system. The driver module is used to control the drive system based on the results of state calculations. The drive system includes: a motor, a transmission, and a drive unit, wherein, The motor is used to receive signals from the drive module and drive the gearbox to move the drive end. A gearbox is used to adjust the speed and direction of the motor and control the movement of the drive end. The driving end is used to release the latching state of the control components and conduction protection components in the circuit conduction system, causing the circuit conduction system to change from the connected state to the disconnected state.

2. The circuit control system according to claim 1, characterized in that, The circuit detection module includes: a main circuit conduction status information acquisition section, a main circuit current sensing section, a main circuit voltage detection section, and a main circuit operating temperature detection section. The main circuit conduction status information acquisition section is used to acquire the voltage signal of the circuit conduction system and transform it into the function start and stop signals of the protection judgment section. The voltage signal of the circuit conduction system detected by the main circuit voltage detection section and the temperature signal of the circuit conduction system detected by the main circuit operating temperature detection section are provided as reference messages to the calculation and setting module. The reference messages are used to determine whether the current working environment is normal, so as to serve as the basis for whether the calculation and setting module can work normally. The main circuit current sensing section is used to detect the current intensity of the circuit conduction system, and amplify and condition it into a usable analog signal as the current intensity signal. The magnitude of this current intensity signal characterizes the current magnitude of the circuit conduction system.

3. The circuit control system according to claim 2, characterized in that, The calculation and settings module includes: The gear setting section is used to generate a required reference current range signal using DIP switches, which serves as a reference signal. The protection judgment section is used to determine the relative magnitude of the current intensity signal and the reference signal, and outputs a drive signal based on the judgment result.

4. The circuit control system according to claim 3, characterized in that, The protection judgment section is specifically used for: If the protection judgment section is enabled, it compares the amplitude of the current intensity signal provided by the main circuit current sensing section with the reference signal provided by the range setting section. If the amplitude of the current intensity signal is greater than the currently set reference signal, the protection judgment section outputs a high level to instruct the electric drive section to drive the drive system. If the amplitude of the current intensity signal is not greater than the currently set reference signal, the protection judgment section outputs a low level and does not instruct the electric drive section to operate.

5. The circuit control system according to claim 4, characterized in that, The driver module includes: The power conversion section is used to extract electrical energy from the circuit conduction system and convert it into a stable DC power supply to provide power to the entire circuit. The energy storage section stores the electrical energy provided by the power conversion section, providing electrical energy for the electric drive section to output drive energy; the electric drive section is used to drive the drive system to operate when it receives a drive signal, disconnecting the circuit and connecting the system to achieve instantaneous protection function.

6. A switch, characterized in that, The circuit control system includes any one of claims 1 to 5.

7. A circuit control method, characterized in that, The circuit control method is used to control the on / off state of the circuit control system according to any one of claims 1-5, the method comprising: Step S1: The detection and control system acquires the status information of the circuit conduction system; Step S2: The detection and control system acquires setting information; Step S3: The detection and control system determines whether there is a circuit breaking control requirement for the circuit conduction system based on the status information and setting information of the circuit conduction system; if there is a circuit breaking requirement, the detection and control system controls the drive system to cut off the circuit conduction system.

8. The method according to claim 7, characterized in that, Step S3 is as follows: S31: If there is no circuit breaker control requirement, the detection and control system will not issue a control signal and will not control the drive system to operate. In this mode, if the current in the line exceeds the deformation current, the continuity protection component will deform beyond the latching amount of the same control component, and the continuity protection component will disconnect the power supply and the load. If the current in the line does not exceed the deformation current, although the continuity protection component will also deform, the amount of deformation will not exceed the latching amount of the same control component, and the continuity protection component will continue to keep the power supply and the load connected. S32: If there is a circuit breaker control requirement, the detection and control system sends a control signal to control the drive system to operate and automatically reset the drive end after the operation is completed; in this mode, the operation of the drive system causes the continuity protection component to trip with the control component, thereby disconnecting the power supply and the load; S33: When the continuity protection component disconnects the power supply and load, the position detection component detects the disconnection status of the entire circuit continuity system and reports the disconnection status of the circuit continuity system.

9. The method according to claim 8, characterized in that, Also includes: In the event of a short circuit, the continuity protection component in the circuit continuity system deforms and disconnects the two power supply / load connection components from the power supply and the load.

10. The method according to claim 9, characterized in that, Also includes: By mechanically pulling the control component in the circuit conduction system, the control component and the conduction protection component change from being hooked to being released, thus disconnecting the two power / load connection components from the power supply and load.

11. The method according to claim 9, characterized in that, Also includes: By mechanically pressing the circuit to activate the control components in the system, the control components and the conduction protection components change from being tripped to being hooked, thus connecting the two power / load connection components to the power supply and the load.

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