Active eddy current self-driving repulsion switch

Abstract

The utility model relates to an eddy current driving repulsion switch in the eddy current switch field. The eddy current driving repulsion switch comprises a main body, a driving member and an induction member. The main body comprises a movable end part for controlling the on-off state switching of the active eddy current self-driving repulsion switch through switching-on and switching-off actions; the driving part is serially connected with the body. The driving piece can establish a magnetic field by utilizing the surge current in a circuit where the active eddy current self-driving repulsion switch is located so as to drive the induction piece; the induction piece is located in the direction of any magnetic field induction face of the driving piece. The induction member can establish an induced magnetic field by inducing the magnetic field of the driving member, and the induced magnetic field and the magnetic field established by the driving member repel each other, so that the induction member cooperates with the driving member to drive the moving end part of the main body to control the active eddy current self-driving repulsive force switch to be switched to an off state. The driving piece and the sensing piece which establish a repulsive force magnetic field by utilizing the surging current in a power grid system circuit where the switch is located directly abandons energy supply equipment of a traditional eddy current driving switch, so that the production, maintenance and replacement cost caused by the energy supply equipment is saved.

Description

Technical Field

[0001] The utility model relates to the field of eddy current switches, in particular to an eddy current driven repulsive switch. Background Art

[0002] When a short circuit occurs in the power grid system, if the short circuit is not removed from the power grid system in time, it will cause a series of adverse effects, such as:

[0003] When short-circuit current continuously flows through electrical equipment, it can damage the equipment and its insulation through thermal effects. If the short-circuit current exceeds the interrupting capacity of the circuit breaker, the breaker may be unable to isolate the fault from the power grid, potentially causing the fault to spread and posing a safety hazard to the grid's operation. Short-circuit faults can cause voltage drops in the grid system, reducing power supply quality. Short-circuit faults can also cause grid system oscillations. If the fault line is close to the power source, generators can lose synchronization, causing the grid to disconnect and resulting in a power outage. Increased short-circuit current levels force grid systems to use heavier equipment to meet thermal stability requirements, increasing grid construction costs.

[0004] Eddy current driven switches are often used in power grid systems due to their advantages of fast speed and strong breaking capacity, in circuits that need to quickly break short circuits, so as to avoid the series of adverse effects mentioned above on the power grid system caused by the circuit not being able to be disconnected in time when a short circuit occurs.

[0005] The core of the eddy current driven switch is to use the eddy current induced magnetic field between the eddy current disk and the energized coil to generate a repulsive force that can drive the vacuum interrupter to close and open. The eddy current disk is fixed to the pull rod used to drive the vacuum interrupter to close and open. The eddy current disk is located between two coil disks (one for closing and the other for opening), which are fixed in place by brackets. When closing is required, the closing coil is energized and creates a repulsive magnetic field with the eddy current disk, thereby driving the vacuum interrupter to close. When opening is required, the opening coil is energized and creates a repulsive magnetic field with the eddy current disk, thereby driving the vacuum interrupter to open.

[0006] Because closing and opening are selective actions, at least two sets of energy supply equipment are often required to provide power to the two coil disks used for closing and opening, respectively, so that these two coil disks can operate independently. Each energy supply equipment set includes at least one set of energy storage capacitors to provide power to the coil disks and a charging power supply to replenish the energy storage capacitors.

[0007] Thus, in the application of eddy current driven switches, there are the following problems:

[0008] 1. There are at least two sets of energy supply equipment for the coil disk used for closing and opening the switch, which increases the production cost of the eddy current drive switch.

[0009] Second, in order to ensure the normal operation of the energy supply equipment, additional components for controlling it are required, which further increases the production cost of the eddy current drive switch.

[0010] 3. If the components in the energy supply equipment fail or are damaged, or the components used to control the energy supply equipment are damaged, corresponding repair and replacement costs will be incurred.

[0011] 4. The breaking speed of the eddy current driven switch is limited by the output discharge current of the energy storage capacitor in the energy supply equipment.

[0012] 5. The eddy current driven switch needs to cooperate with other control components to receive the breaking command so that it can be opened after receiving the breaking command. Summary of the Invention

[0013] In order to solve the problems of cost, limited breaking speed and the need to receive instructions for breaking in the application of using energy supply equipment to power eddy current driven switches proposed in the above background technology, the present invention provides the following technical solutions:

[0014] An active eddy current self-driven repulsion switch includes a main body, a driving component, and a sensing component. The details are as follows:

[0015] The main body includes a moving end portion which controls the switching of the on and off states of the active eddy current self-driven repulsive switch through closing and opening actions.

[0016] The driving element is connected in series with the main body. The driving element uses the surge of current in the circuit where the active eddy current self-driven repulsion switch is located to create a magnetic field, thereby driving the induction element.

[0017] The induction element is located at any magnetic field sensing surface of the driving element. The induction element can establish an induced magnetic field by inducing the magnetic field of the driving element. The induced magnetic field and the magnetic field established by the driving element repel each other, causing the induction element to cooperate with the moving end portion of the driving element to control the active eddy current self-driven repulsion switch to switch to the off state.

[0018] Furthermore, the magnetic field direction of the driving component and the magnetic field direction of the induction component are both directed toward each other and penetrate each other.

[0019] Furthermore, either the driving member or the sensing member is connected to the moving end portion of the main body.

[0020] Furthermore, the induction member is connected to the moving end portion of the main body, and the driving member is not within the travel route of the induction member during the process of the switch being switched to the off-circuit state.

[0021] Furthermore, the driving member is connected to the movable end portion of the main body, and the sensing member is not within the travel path of the driving member during the process of the switch being switched to the off-circuit state.

[0022] Furthermore, the driving member is a coil disk, and is connected in series to the incoming line side or the outgoing line side of the main body.

[0023] Furthermore, the induction component is an eddy current disk.

[0024] Furthermore, the driving element and the inductive element are essentially the same and are connected in series with each other, and the series circuit formed by the driving element and the inductive element is connected in series with the incoming line side or the outgoing line side of the main body.

[0025] Furthermore, the driving element and the inductive element are essentially the same and are connected in parallel with each other, and the parallel circuit formed by the two is connected in series to the incoming line side or the outgoing line side of the main body.

[0026] Furthermore, the driving component and the induction component are both coil disks.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. The present invention directly abandons the energy supply equipment of the traditional eddy current driven switch by using the surge of current in the power grid system circuit where the switch is located to establish a repulsive magnetic field, thereby saving the resulting production and maintenance and replacement costs.

[0029] 2. The present invention directly abandons the energy supply equipment of the traditional eddy current driven switch by utilizing the surge of current in the power grid system circuit where the switch is located to establish a repulsive magnetic field, thereby avoiding the adverse effects of the switch due to failure of the energy supply equipment.

[0030] 3. The drive element of the utility model directly draws power from the circuit of the power grid system in which it is located, abandoning its traditional energy supply equipment, reducing the overall space occupied by the switch, and facilitating the miniaturization and lightweighting of the switch.

[0031] 4. The present invention abandons the holding unit designed in the traditional eddy current driven switch to maintain the closed and open states of the switch, thereby reducing the load on the pull rod and avoiding the need to overcome the magnetic attraction force of the holding unit when closing the switch. In this way, the material selection of the pull rod becomes wider and the force influencing factors that need to be considered when designing the closing state are reduced.

[0032] 5. In the present invention, the switch can be opened and closed only by the repulsive magnetic field established between the driving element and the inductive element. Moreover, the greater the current surge in the circuit due to short circuit, fault, etc. in the power grid system circuit where the switch is located, the stronger the repulsive magnetic field established between the two is, so that the switch is opened and closed more quickly, thereby preventing the fault in the power grid system from expanding and spreading more quickly.

[0033] 6. In the power grid system circuit where the switch of the present invention is located, when the current of the circuit surges due to a short circuit, a fault, or the like, a repulsive magnetic field can be actively established between the driving element and the inductive element simply by cooperating with each other, thereby realizing active disconnection of the switch without the need to issue a disconnection command to the switch through related control components, thereby improving the disconnection speed of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A circuit diagram of a prior art eddy current switch coil disk connection;

[0035] Figure 2 A topological diagram of the wiring of the eddy current switch coil disk in the prior art;

[0036] Figure 3 This is a circuit diagram of the single-type drive of the active eddy current self-driven repulsion switch of the utility model. Figure 1 ;

[0037] Figure 4 This is a circuit diagram of the single-type drive of the active eddy current self-driven repulsion switch of the utility model. Figure 2 ;

[0038] Figure 5 for Figure 3 Topological diagram of the eddy current disk placed on the middle coil disk and located at the moving rod;

[0039] Figure 6 for Figure 3 Topological diagram of the middle coil disk placed under the eddy current disk and located at the moving rod;

[0040] Figure 7 for Figure 3 Topological diagram of the eddy current disk placed on the middle coil disk and at the pull rod;

[0041] Figure 8 for Figure 3 Topological diagram of the middle coil disk placed under the eddy current disk and located at the tie rod;

[0042] Figure 9 for Figure 4 Topological diagram of the eddy current disk placed on the middle coil disk and located at the moving rod;

[0043] Figure 10 for Figure 4Topological diagram of the middle coil disk placed under the eddy current disk and located at the moving rod;

[0044] Figure 11 for Figure 4 Topological diagram of the eddy current disk placed on the middle coil disk and at the pull rod;

[0045] Figure 12 for Figure 4 Topological diagram of the middle coil disk placed under the eddy current disk and located at the tie rod;

[0046] Figure 13 for Figure 5 Structural diagram in the closed state;

[0047] Figure 14 for Figure 5 Structural diagram in the neutral open state;

[0048] Figure 15 for Figure 6 Structural diagram in the closed state;

[0049] Figure 16 for Figure 6 Structural diagram in the neutral open state;

[0050] Figure 17 for Figure 7 Structural diagram in the closed state;

[0051] Figure 18 for Figure 7 Structural diagram in the neutral open state;

[0052] Figure 19 for Figure 8 Structural diagram in the closed state;

[0053] Figure 20 for Figure 8 Structural diagram in the neutral open state;

[0054] Figure 21 This is a schematic diagram of the structure of the coil disk sliding power supply in this utility model Figure 1 ;

[0055] Figure 22 This is a schematic diagram of the structure of the coil disk sliding power supply in this utility model Figure 2 ;

[0056] Figure 23 for Figure 9 Structural diagram in the closed state;

[0057] Figure 24 for Figure 9 Structural diagram in the neutral open state;

[0058] Figure 25 for Figure 10 Structural diagram in the closed state;

[0059] Figure 26 for Figure 10 Structural diagram in the neutral open state;

[0060] Figure 27 for Figure 11 Structural diagram in the closed state;

[0061] Figure 28 for Figure 11 Structural diagram in the neutral open state;

[0062] Figure 29 for Figure 12 Structural diagram in the closed state;

[0063] Figure 30 for Figure 12 Structural diagram in the neutral open state;

[0064] Figure 31 This is a schematic diagram of the circuit for the active eddy current self-driven repulsion switch duplex drive of the utility model. Figure 1 ;

[0065] Figure 32 This is a circuit diagram of the active eddy current self-driven repulsion switch duplex drive of the utility model. Figure 2 ;

[0066] Figure 33 This is a schematic diagram of the circuit for the active eddy current self-driven repulsion switch duplex drive of the utility model. Figure 3 ;

[0067] Figure 34 This is a circuit diagram of the active eddy current self-driven repulsion switch duplex drive of the utility model. Figure 4 ;

[0068] Figure 35 This is a schematic diagram of the structure of the utility model when the pull rod is not locked;

[0069] Figure 36 This is a schematic diagram of the structure of the utility model when the pull rod is locked.

[0070] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0071] 1-main body, 2-coil disk, 3-eddy current disk;

[0072] 001-contact piece, 002-lock slot, 003-lock. DETAILED DESCRIPTION

[0073] The following describes in detail the preferred specific implementations of the present invention, and provides a clear and complete description in conjunction with the accompanying drawings.

[0074] In the prior art:

[0075] See also Figure 1 and Figure 2 , which shows the coil disk connection circuit and topology circuit of the eddy current driven switch in the prior art.

[0076] It is mainly used in lines that require load switching control and is usually installed on the incoming line side of the load.

[0077] The utility model provides a technical solution:

[0078] See also Figures 3 to 12 , which shows the circuit structure and topology of the active eddy current self-driven repulsion switch provided by the present invention using a single drive method. In the figure, K represents the main body 1 of the active eddy current self-driven repulsion switch; L represents the driving element of the active eddy current self-driven repulsion switch; and G represents the sensing element of the active eddy current self-driven repulsion switch.

[0079] It is mainly used in situations where a short circuit occurs and the circuit controlled by the switch needs to be quickly cut off to prevent the short circuit fault from expanding and spreading.

[0080] The active eddy current self-driven repulsion switch includes a main body 1, a driving component and a sensing component. The details are as follows:

[0081] The main body 1 of the active eddy current self-propelled repulsion switch, which serves as the actuator for switching the switch's on / off state, includes a static end portion and a dynamic end portion, with the switch's on / off state determined by whether the static and dynamic ends are in contact. The circuit installation point where the switch is to be installed is cut off, and of the two circuit joints formed after the cut, one joint is connected to the terminal of the static end portion, while the other joint is connected to the terminal of the dynamic end portion. Thus, when the dynamic end portion is in contact with the static end portion, the switch is in a conductive state, and the circuit controlled by the switch is in a conductive state. When the dynamic end portion is not in contact with the static end portion, the switch is in a disconnected state, and the circuit controlled by the switch is in a disconnected state.

[0082] The driver of the active eddy current self-driven repulsive switch, which serves as the driving mechanism for switching the switch on and off, is connected in series with the main body 1. When the current in the line where the switch is located surges due to a short circuit or other reasons, the driver can actively capture the surge in current and use it to create a magnetic field, providing the driving force for the switch to open. Furthermore, the greater the short-circuit current in the line, the greater the current flowing through the driver, the stronger the magnetic field created by the driver, and the greater the driving force provided by the magnetic field.

[0083] The induction element of the active eddy current self-driven repulsion switch is placed in the direction of any magnetic field sensing surface of the driving element, and also serves as a driving mechanism, which is used to cooperate with the driving element to drive the switch to realize the switching of the on and off states. Among them, the circuit formed inside the induction element is independent of the circuit where the switch is located. When the driving element establishes a magnetic field by obtaining the surge current in the circuit where the switch is located, the induction element induces an induced current in the circuit inside the induction element by inducing the magnetic field established by the driving element. At the same time, the induction element uses the induced current to establish a magnetic field that can repel the magnetic field of the driving element. In addition, the stronger the magnetic field established by the driving element, the greater the induced current induced by the induction element, thereby making the magnetic field established by the induction element stronger.

[0084] Preferably, the magnetic field directions of the driver and the induction components are mutually penetrating. If the magnetic field sensing surfaces of the two components are designed to be horizontally parallel, the penetration direction of the magnetic field generated by each component is nearly perpendicular to the magnetic field sensing surface, and the repulsive force generated between the two components is maximized.

[0085] Preferably, one of the driver and the inductive element is selectively connected to the moving end portion of the main body 1, while the other is designed to be fixed in position. Thus, when the driver and the inductive element both establish a repulsive magnetic field to drive the active eddy current self-driven repulsive switch to the off state, the driver or the inductive element connected to the moving end portion of the main body 1 can, under the force of the repulsive magnetic field, drive the moving end portion of the main body 1 to which it is connected away from the static end portion of the main body 1, placing the main body 1 in the off state, thereby switching the switch to the off state. If the moving end portion of the main body 1 is connected to the inductive element, the driver must be designed to maintain a fixed spatial position and not be within the travel path of the inductive element, thereby preventing the driver from obstructing the movement of the inductive element during the process of switching the switch to the off state. If the moving end portion of the main body 1 is connected to the driver, the inductive element must be designed to maintain a fixed spatial position and not be within the travel path of the driver, thereby preventing the inductive element from obstructing the movement of the driver during the process of switching the switch to the off state.

[0086] The utility model provides another technical solution:

[0087] See also Figures 31 to 34 , which shows the circuit structure of the active eddy current self-driven repulsion switch provided by the present invention using a duplex drive method. In the figure, K represents the main body 1 of the active eddy current self-driven repulsion switch; L represents the driving element of the active eddy current self-driven repulsion switch, which is also represented as the induction element.

[0088] In this application of the active eddy current self-driven repulsion switch, the driver and inductor are essentially the same type of components, connected in series or parallel. The series or parallel circuit formed by the two is connected in series with the input or output side of the main body 1 as a whole. In other words, both the driver and inductor can directly draw current from the circuit in which the switch is located and use the current flowing through them to establish a magnetic field. Therefore, the driver can be considered the inductor, and the inductor can be considered the driver; both are simultaneously the self and the other.

[0089] Because the magnetic fields created by both the driver and induction components are superimposed—that is, each is a combination of the magnetic field generated by directly drawing current from the switch's circuit and the magnetic field generated by inducing the other's magnetic field—the superposition of these two magnetic fields multiplies the effect of the repulsive magnetic field in this solution compared to a single-actuation switch, further increasing the switching speed of the active eddy current self-driven repulsive switch.

[0090] In the above two technical solutions provided by the present utility model:

[0091] The driver directly obtains electrical energy from the grid system circuit where the switch is located, and uses the surge of current in the circuit to establish a magnetic field, which is then combined with the repulsive magnetic field induced by the induction element to realize the opening and closing of the switch.

[0092] Compared to traditional eddy current switches, the active eddy current self-driven repulsion switch eliminates the energy supply equipment required by traditional eddy current-driven switches, thereby reducing the associated production and maintenance costs, and also avoiding the safety hazards caused by energy supply equipment failure. Furthermore, since no energy supply equipment is required, the active eddy current self-driven repulsion switch's overall design can reduce space requirements, facilitate miniaturization, and reduce the overall weight of the switch.

[0093] Compared to traditional eddy current switches, active eddy current self-driven repulsive switches eliminate the retention unit used in traditional eddy current driven switches to maintain the switch's closed or open state. This eliminates the need for the retention unit's accessories on the pull rod, reducing the pull rod's load. This eliminates the need to overcome the retention unit's magnetic attraction during closing and opening, broadening the selection of pull rod materials. Previously, due to the need to consider the pull rod's load and the need to overcome the retention unit's magnetic attraction, the pull rod's selection required insulating materials capable of withstanding high tensile loads. These factors are no longer necessary, reducing the minimum tensile load requirement. By eliminating the retention unit's magnetic attraction, the overall design workload and complexity of the active eddy current self-driven repulsive switch are reduced.

[0094] Compared to traditional eddy current switches, active eddy current self-driven repulsive switches achieve opening and closing solely through the repulsive magnetic field established between the driver and inductor. The energy used to achieve this opening and closing is derived from the surge in current caused by short circuits or faults in the power grid system where the switch is located. This effectively transforms waste into valuable resources, providing local power, and achieving the goal of conserving resources and protecting the environment. Furthermore, the greater the surge in current in the power grid system where the active eddy current self-driven repulsive switch is located due to short circuits or faults, the stronger the repulsive magnetic field established between the two, enabling the switch to open and close more quickly, thereby more quickly preventing the fault from spreading within the power grid system. Furthermore, before a traditional eddy current switch can be opened, it needs to receive a disconnection command through relevant control components, and then analyze and process the command before issuing it to the switch. The switch then receives the command, analyzes the command, and executes the command, completing the reception, sending, and analysis and processing of a series of instructions such as the opening and closing of the switch. The active eddy current self-driven repulsive switch actively draws power and uses the repulsive magnetic field for self-drive, which directly realizes the active opening of the switch without the need to be equipped with other related control components, thereby saving the time of using control components for operation, thereby improving the opening and closing speed of the switch.

[0095] Example 1

[0096] See also Figure 3 、 Figure 5 、 Figure 13 and Figure 14 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a single drive mode.

[0097] The driving element is a coil disk 2, whose central through-hole allows the moving end of the main body 1 to pass through, and its spatial position remains unchanged during the switch's closing and opening processes. Furthermore, the exposed surfaces of both the moving end of the main body 1 and the coil disk 2 are insulated. The moving end of the main body 1 houses a circuit connected to its moving contact. This circuit is connected to the incoming line of the coil disk 2 via a wire, and the cable from the outgoing line of the coil disk 2 serves as the outgoing line of the switch.

[0098] The induction element is an eddy current disk 3, which is fixed to the moving end of the main body 1 and is located in the direction of the magnetic field sensing surface of the coil disk 2, that is, below the coil disk 2. In addition, the exposed surface of the eddy current disk 3 is insulated, and the coil inside it is independent and has a rotation direction opposite to that of the coil inside the driver.

[0099] In this embodiment:

[0100] When the switch maintains an open state and the circuit it is connected to operates normally, that is, the current in the circuit enters from the static end of the body 1, is then guided to the coil disk 2 through the dynamic end of the body 1, and finally discharged from the coil disk 2. In this case, the switch is designed so that the repulsive force between the magnetic field created by the coil disk 2 and the magnetic field induced by the eddy current disk 3 is much lower than the attractive force between the static end of the body 1 and the dynamic end of the body 1. Therefore, in this case, the switch can always maintain an open state.

[0101] When the switch is in the on state and the circuit in which it is located suddenly experiences a short circuit or fault, the current in the circuit enters the static end of the main body 1, then flows through the dynamic end of the main body 1 to the coil disk 2, and finally exits from the coil disk 2. When designing the switch, in this situation, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the coil disk 2 and the magnetic field induced by the eddy current disk 3 to be much greater than the attractive force between the static end of the main body 1 and the dynamic end of the main body 1. Therefore, in this situation, the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3 can drive the dynamic end of the main body 1 away from the static end of the main body 1, causing the switch to switch to the off state. Furthermore, the greater the surge in current caused by a short circuit or fault, the stronger the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3, and the faster the dynamic end of the main body 1 moves away from the static end of the main body 1, that is, the faster the switch opens and closes.

[0102] Example 2

[0103] See also Figure 3 、 Figure 6 、 Figure 15 and Figure 16This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a single drive mode.

[0104] The driving element is a coil disk 2, which is fixed to the moving end of the main body 1. Furthermore, the exposed surfaces of both the moving end of the main body 1 and the coil disk 2 are insulated. The moving end of the main body 1 houses a circuit connected to its moving contact. This circuit is connected to the incoming wire end of the coil disk 2 via a wire, and the cable connected to the outgoing wire end of the coil disk 2 serves as the outgoing wire for the switch.

[0105] The inductive element is an eddy current disc 3, located above the magnetic field sensing surface of the coil disc 2. A through-hole in its center allows the moving end of the main body 1 to pass through, while its spatial position remains unchanged during the switch closing and opening process. Furthermore, the exposed surface of the eddy current disc 3 is insulated, and the coil inside it exists independently, with a rotation direction opposite to that of the coil inside the driver.

[0106] In this embodiment:

[0107] When the switch maintains an open state and the circuit it is connected to operates normally, that is, the current in the circuit enters from the static end of the body 1, is then guided to the coil disk 2 through the dynamic end of the body 1, and finally discharged from the coil disk 2. In this case, the switch is designed so that the repulsive force between the magnetic field created by the coil disk 2 and the magnetic field induced by the eddy current disk 3 is much lower than the attractive force between the static end of the body 1 and the dynamic end of the body 1. Therefore, in this case, the switch can always maintain an open state.

[0108] When the switch is in the on state and the circuit in which it is located suddenly experiences a short circuit or fault, the current in the circuit enters the static end of the main body 1, then flows through the dynamic end of the main body 1 to the coil disk 2, and finally exits from the coil disk 2. When designing the switch, in this situation, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the coil disk 2 and the magnetic field induced by the eddy current disk 3 to be much greater than the attractive force between the static end of the main body 1 and the dynamic end of the main body 1. Therefore, in this situation, the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3 can drive the dynamic end of the main body 1 away from the static end of the main body 1, causing the switch to switch to the off state. Furthermore, the greater the surge in current caused by a short circuit or fault, the stronger the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3, and the faster the dynamic end of the main body 1 moves away from the static end of the main body 1, that is, the faster the switch opens and closes.

[0109] Example 3

[0110] See also Figure 3 、 Figure 7 、 Figure 17 and Figure 18 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a single drive mode.

[0111] The driving element is a coil disk 2, the through-hole in its center allowing the pull rod connected to the moving end of the main body 1 to pass through, and its spatial position remains unchanged during the switch closing and opening process. Furthermore, the exposed surfaces of both the moving end of the main body 1 and the coil disk 2 are insulated. The moving end of the main body 1 is internally provided with a circuit that is electrically connected to its moving contact. This circuit is connected to the incoming line end of the coil disk 2 via a wire, and the cable connected to the outgoing line end of the coil disk 2 serves as the circuit for the outgoing line side of the switch. The pull rod is an insulating component, and is connected to the moving end of the main body 1 via an insulating connector.

[0112] The induction element is an eddy current disk 3, which is fixed to the moving end of the main body 1 and is located in the direction of the magnetic field sensing surface of the coil disk 2, that is, below the coil disk 2. In addition, the exposed surface of the eddy current disk 3 is insulated, and the coil inside it is independent and has a rotation direction opposite to that of the coil inside the driver.

[0113] Preferably, the circuitry within the movable end portion of the main body 1 that connects to the movable contact can be concealed. Specifically, the circuitry can be designed to extend through the interior of the movable end portion of the main body 1, the interior of the insulating connector, and the interior of the pull rod. This allows the wires connected to the inlet end of the coil disk 2 to be routed through the pull rod, preventing exposure.

[0114] In this embodiment:

[0115] When the switch maintains an open state and the circuit it is connected to operates normally, that is, the current in the circuit enters from the static end of the body 1, is then guided to the coil disk 2 through the dynamic end of the body 1, and finally discharged from the coil disk 2. In this case, the switch is designed so that the repulsive force between the magnetic field created by the coil disk 2 and the magnetic field induced by the eddy current disk 3 is much lower than the attractive force between the static end of the body 1 and the dynamic end of the body 1. Therefore, in this case, the switch can always maintain an open state.

[0116] When the switch is in the on state and the circuit in which it is located suddenly experiences a short circuit or fault, the current in the circuit enters the static end of the main body 1, then flows through the dynamic end of the main body 1 to the coil disk 2, and finally exits from the coil disk 2. When designing the switch, in this situation, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the coil disk 2 and the magnetic field induced by the eddy current disk 3 to be much greater than the attractive force between the static end of the main body 1 and the dynamic end of the main body 1. Therefore, in this situation, the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3 can drive the dynamic end of the main body 1 away from the static end of the main body 1, causing the switch to switch to the off state. Furthermore, the greater the surge in current caused by a short circuit or fault, the stronger the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3, and the faster the dynamic end of the main body 1 moves away from the static end of the main body 1, that is, the faster the switch opens and closes.

[0117] Example 4

[0118] See also Figure 3 、 Figure 8 、 Figure 19 and Figure 20 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a single drive mode.

[0119] The driving element is a coil disk 2, which is fixed to a pull rod connected to the moving end of the main body 1. Furthermore, the exposed surfaces of both the moving end of the main body 1 and the coil disk 2 are insulated. The moving end of the main body 1 houses a circuit connected to its moving contact. This circuit is connected to the incoming wire end of the coil disk 2 via a wire, and a cable from the outgoing wire end of the coil disk 2 serves as the outgoing wire for the switch. The pull rod is an insulator and is connected to the moving end of the main body 1 via an insulating connector.

[0120] The inductive element is an eddy current disc 3, located above the magnetic field sensing surface of the coil disc 2. A through-hole in its center allows the moving end of the main body 1 to pass through, while its spatial position remains unchanged during the switch closing and opening process. Furthermore, the exposed surface of the eddy current disc 3 is insulated, and the coil inside it exists independently, with a rotation direction opposite to that of the coil inside the driver.

[0121] Preferably, the circuitry within the movable end portion of the main body 1 that connects to the movable contact can be concealed. Specifically, the circuitry can be designed to extend through the interior of the movable end portion of the main body 1, the interior of the insulating connector, and the interior of the pull rod. This allows the wires connected to the inlet end of the coil disk 2 to be routed through the pull rod, preventing exposure.

[0122] In this embodiment:

[0123] When the switch maintains an open state and the circuit it is connected to operates normally, that is, the current in the circuit enters from the static end of the body 1, is then guided to the coil disk 2 through the dynamic end of the body 1, and finally discharged from the coil disk 2. In this case, the switch is designed so that the repulsive force between the magnetic field created by the coil disk 2 and the magnetic field induced by the eddy current disk 3 is much lower than the attractive force between the static end of the body 1 and the dynamic end of the body 1. Therefore, in this case, the switch can always maintain an open state.

[0124] When the switch is in the on state and the circuit in which it is located suddenly experiences a short circuit or fault, the current in the circuit enters the static end of the main body 1, then flows through the dynamic end of the main body 1 to the coil disk 2, and finally exits from the coil disk 2. When designing the switch, in this situation, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the coil disk 2 and the magnetic field induced by the eddy current disk 3 to be much greater than the attractive force between the static end of the main body 1 and the dynamic end of the main body 1. Therefore, in this situation, the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3 can drive the dynamic end of the main body 1 away from the static end of the main body 1, causing the switch to switch to the off state. Furthermore, the greater the surge in current caused by a short circuit or fault, the stronger the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3, and the faster the dynamic end of the main body 1 moves away from the static end of the main body 1, that is, the faster the switch opens and closes.

[0125] Example 5

[0126] See also Figure 21 and Figure 22 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the case of embodiment 1 or embodiment 3 in the above-mentioned technical solution using a single drive mode.

[0127] This embodiment improves the method of connecting the inlet end of the coil disk 2 to the circuit provided at the movable end of the body 1 through a wire in the above embodiment to a sliding method, as follows:

[0128] The wire inlet end of the coil disk 2 is arranged on the side wall of the through hole in the middle thereof.

[0129] A conductive contact 001 is mounted on the moving end or pull rod of the main body 1, allowing the incoming wire end of the coil disk 2 to slide into contact with it. The inner surface of this contact 001 is connected to the circuit provided on the moving end of the main body 1. This allows the current in this circuit to be conducted to the coil disk 2 through this contact 001.

[0130] In this embodiment:

[0131] The line and the wires connected to the inlet end of the coil disk 2 are all hidden, avoiding adverse effects caused by their exposure to the outside.

[0132] Example 6

[0133] See also Figure 4 、 Figure 9 、 Figure 23 and Figure 24 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a single drive mode.

[0134] The driving element is a coil disk 2, whose central through-hole allows the moving end of the main body 1 to pass through, and its spatial position remains unchanged during the switch's closing and opening cycles. Furthermore, the exposed surfaces of both the moving end of the main body 1 and the coil disk 2 are insulated. The cable connected to the incoming end of the coil disk 2 serves as the incoming cable for the switch, while the outgoing end of the coil disk 2 is connected to the stationary end of the main body 1 via a wire. The exposed portion of the moving end of the main body 1 has a mounting position for the outgoing cable of the switch, and this mounting position can transmit power to the outgoing cable.

[0135] The induction element is an eddy current disk 3, which is fixed to the moving end of the main body 1 and is located in the direction of the magnetic field sensing surface of the coil disk 2, that is, below the coil disk 2. In addition, the exposed surface of the eddy current disk 3 is insulated, and the coil inside it is independent and has a rotation direction opposite to that of the coil inside the driver.

[0136] In this embodiment:

[0137] When the switch maintains an active state and the circuit it serves operates normally, the current in the circuit enters through coil disk 2, is conducted through the static end of body 1 to the dynamic end, and finally exits from the dynamic end. The switch is designed so that, in this case, the repulsive force between the magnetic field created by coil disk 2 and the magnetic field induced by eddy current disk 3 is significantly lower than the attractive force between the static and dynamic ends of body 1. Therefore, the switch can always maintain an active state.

[0138] When the switch is in the on state and the circuit in which the switch is located suddenly experiences a short circuit or fault, the current in the circuit enters through the coil disk 2, then passes through the static end portion of the body 1 to the dynamic end portion of the body 1, and finally exits from the dynamic end portion of the body 1. In this case, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the coil disk 2 and the magnetic field induced by the eddy current disk 3 to be much greater than the attractive force between the static end portion of the body 1 and the dynamic end portion of the body 1. Therefore, in this case, the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3 can drive the dynamic end portion of the body 1 away from the static end portion of the body 1, causing the switch to switch to the off state. Furthermore, the greater the surge in current caused by a short circuit or fault, the stronger the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3, and the faster the dynamic end portion of the body 1 moves away from the static end portion of the body 1, i.e., the faster the switch opens and closes.

[0139] Example 7

[0140] See also Figure 4 、 Figure 10 、 Figure 25 and Figure 26 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a single drive mode.

[0141] The driving element is a coil disk 2, which is fixed to the moving end of the main body 1. Furthermore, the exposed surfaces of both the moving end of the main body 1 and the coil disk 2 are insulated. The cable connected to the incoming end of the coil disk 2 serves as the incoming cable for the switch, while the outgoing end of the coil disk 2 is connected to the stationary end of the main body 1 via a wire. Within the exposed portion of the moving end of the main body 1, a mounting area for the outgoing cable of the switch is reserved, and this mounting area is capable of transmitting power to the outgoing cable.

[0142] The inductive element is an eddy current disc 3, located above the magnetic field sensing surface of the coil disc 2. A through-hole in its center allows the moving end of the main body 1 to pass through, while its spatial position remains unchanged during the switch closing and opening process. Furthermore, the exposed surface of the eddy current disc 3 is insulated, and the coil inside it exists independently, with a rotation direction opposite to that of the coil inside the driver.

[0143] In this embodiment:

[0144] When the switch maintains an active state and the circuit it serves operates normally, the current in the circuit enters through coil disk 2, is conducted through the static end of body 1 to the dynamic end, and finally exits from the dynamic end. The switch is designed so that, in this case, the repulsive force between the magnetic field created by coil disk 2 and the magnetic field induced by eddy current disk 3 is significantly lower than the attractive force between the static and dynamic ends of body 1. Therefore, the switch can always maintain an active state.

[0145] When the switch is in the on state and the circuit in which the switch is located suddenly experiences a short circuit or fault, the current in the circuit enters through the coil disk 2, then passes through the static end portion of the body 1 to the dynamic end portion of the body 1, and finally exits from the dynamic end portion of the body 1. In this case, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the coil disk 2 and the magnetic field induced by the eddy current disk 3 to be much greater than the attractive force between the static end portion of the body 1 and the dynamic end portion of the body 1. Therefore, in this case, the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3 can drive the dynamic end portion of the body 1 away from the static end portion of the body 1, causing the switch to switch to the off state. Furthermore, the greater the surge in current caused by a short circuit or fault, the stronger the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3, and the faster the dynamic end portion of the body 1 moves away from the static end portion of the body 1, i.e., the faster the switch opens and closes.

[0146] Example 8

[0147] See also Figure 4 、 Figure 11 、 Figure 27 and Figure 28 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a single drive mode.

[0148] The driving component is a coil disk 2, the through hole in the middle of which allows the pull rod connected to the moving end of the main body 1 to shuttle, and its spatial position remains unchanged during the closing and opening process of the switch. In addition, the exposed surfaces of both the moving end of the main body 1 and the coil disk 2 are insulated. The cable connected to the incoming end of the coil disk 2 serves as the cable on the incoming side of the switch, while the outgoing end of the coil disk 2 is connected to the static end of the main body 1 through a wire. In the moving end of the main body 1, the exposed part has an installation position for connecting the cable on the outgoing side of the switch, and the installation position can transmit power to the cable on the outgoing side of the switch. The pull rod is an insulating component, and the pull rod is connected to the moving end of the main body 1 by an insulating connector.

[0149] The induction element is an eddy current disk 3, which is fixed to the moving end of the main body 1 and is located in the direction of the magnetic field sensing surface of the coil disk 2, that is, below the coil disk 2. In addition, the exposed surface of the eddy current disk 3 is insulated, and the coil inside it is independent and has a rotation direction opposite to that of the coil inside the driver.

[0150] In this embodiment:

[0151] When the switch maintains an active state and the circuit it serves operates normally, the current in the circuit enters through coil disk 2, is conducted through the static end of body 1 to the dynamic end, and finally exits from the dynamic end. The switch is designed so that, in this case, the repulsive force between the magnetic field created by coil disk 2 and the magnetic field induced by eddy current disk 3 is significantly lower than the attractive force between the static and dynamic ends of body 1. Therefore, the switch can always maintain an active state.

[0152] When the switch is in the on state and the circuit in which the switch is located suddenly experiences a short circuit or fault, the current in the circuit enters through the coil disk 2, then passes through the static end portion of the body 1 to the dynamic end portion of the body 1, and finally exits from the dynamic end portion of the body 1. In this case, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the coil disk 2 and the magnetic field induced by the eddy current disk 3 to be much greater than the attractive force between the static end portion of the body 1 and the dynamic end portion of the body 1. Therefore, in this case, the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3 can drive the dynamic end portion of the body 1 away from the static end portion of the body 1, causing the switch to switch to the off state. Furthermore, the greater the surge in current caused by a short circuit or fault, the stronger the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3, and the faster the dynamic end portion of the body 1 moves away from the static end portion of the body 1, i.e., the faster the switch opens and closes.

[0153] Embodiment 9

[0154] See also Figure 4 、 Figure 12 、 Figure 29 and Figure 30 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a single drive mode.

[0155] The driving element is a coil disk 2, which is fixed to a pull rod connected to the external portion of the main body 1. Furthermore, the exposed surfaces of both the main body 1 and the coil disk 2 are insulated. The cable connected to the incoming end of the coil disk 2 serves as the incoming cable for the switch, while the outgoing end of the coil disk 2 is connected to the static end of the main body 1 via a wire. Within the exposed portion of the main body 1, a mounting area for the outgoing cable of the switch is reserved, and this mounting area is capable of transmitting power to the outgoing cable.

[0156] The inductive element is an eddy current disc 3, located above the magnetic field sensing surface of the coil disc 2. A through-hole in its center allows the moving end of the main body 1 to pass through, while its spatial position remains unchanged during the switch closing and opening process. Furthermore, the exposed surface of the eddy current disc 3 is insulated, and the coil inside it exists independently, with a rotation direction opposite to that of the coil inside the driver.

[0157] In this embodiment:

[0158] When the switch maintains an active state and the circuit it serves operates normally, the current in the circuit enters through coil disk 2, is conducted through the static end of body 1 to the dynamic end, and finally exits from the dynamic end. The switch is designed so that, in this case, the repulsive force between the magnetic field created by coil disk 2 and the magnetic field induced by eddy current disk 3 is significantly lower than the attractive force between the static and dynamic ends of body 1. Therefore, the switch can always maintain an active state.

[0159] When the switch is in the on state and the circuit in which the switch is located suddenly experiences a short circuit or fault, the current in the circuit enters through the coil disk 2, then passes through the static end portion of the body 1 to the dynamic end portion of the body 1, and finally exits from the dynamic end portion of the body 1. In this case, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the coil disk 2 and the magnetic field induced by the eddy current disk 3 to be much greater than the attractive force between the static end portion of the body 1 and the dynamic end portion of the body 1. Therefore, in this case, the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3 can drive the dynamic end portion of the body 1 away from the static end portion of the body 1, causing the switch to switch to the off state. Furthermore, the greater the surge in current caused by a short circuit or fault, the stronger the repulsive magnetic field formed between the coil disk 2 and the eddy current disk 3, and the faster the dynamic end portion of the body 1 moves away from the static end portion of the body 1, i.e., the faster the switch opens and closes.

[0160] Example 10

[0161] See also Figure 31 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a compound drive method.

[0162] Both the driver and inductor are coil disks 2, connected in series to form a coil circuit. That is, the driver's output is connected to the inductor's input via a wire, and vice versa. Furthermore, the rotation direction of the coil within the driver is opposite to that of the inductor's coil.

[0163] If the output terminal of the driving component is connected to the input terminal of the inductive component through a wire, the input terminal of the driving component is the input terminal of the coil series circuit, and the output terminal of the inductive component is the output terminal of the coil series circuit.

[0164] If the output terminal of the induction component is connected to the input terminal of the driving component through a wire, the input terminal of the induction component is the input terminal of the coil series circuit, and the output terminal of the driving component is the output terminal of the coil series circuit.

[0165] Here, the exposed surfaces of the moving end part, the driving part and the inductive part of the main body 1 are all insulated; a circuit that is connected to its moving contact is provided inside the moving end part of the main body 1, and the circuit is connected to the incoming end of the coil series circuit through a wire, and the cable connected to the outgoing end of the coil series circuit serves as the circuit on the outgoing side of the switch.

[0166] In short:

[0167] If both the driving coil disk 2 and the inductive coil disk 2 are located at the moving end of the main body 1, and the coil circuit formed by the two is connected in series to the line on the output side of the switch, then the through hole in the center of the upper coil disk 2 can allow the moving end of the main body 1 to pass through, and its spatial position remains unchanged during the closing and opening of the switch; while the lower coil disk 2 is fixed to the moving end of the main body 1.

[0168] In short:

[0169] If both the driving coil disk 2 and the inductive coil disk 2 are mounted on the pull rod connected to the moving end of the main body 1, and the coil circuit formed by the two is connected in series to the circuit on the output side of the switch, then the through hole in the center of the upper coil disk 2 can allow the pull rod to pass through, and its spatial position remains unchanged during the closing and opening of the switch; while the lower coil disk 2 is fixed to the rod body.

[0170] In this embodiment:

[0171] When the switch maintains an active state and the circuit it is connected to operates normally, that is, the current in the circuit enters through the static end of the main body 1, is then directed through the dynamic end of the main body 1 to the coil series circuit, and finally discharged through the coil series circuit. In this case, the switch is designed so that the repulsive force between the magnetic field created by the driver and the magnetic field induced by the induction element is much lower than the attractive force between the static end of the main body 1 and the dynamic end of the main body 1. Therefore, in this case, the switch can always maintain an active state.

[0172] When the switch is in the on state and the circuit in which the switch is located suddenly experiences a short circuit or fault, the current in the circuit enters the static end of the main body 1, is then directed through the dynamic end of the main body 1 to the coil series circuit, and finally is discharged from the coil series circuit. In this case, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times higher than in the normal state, causing the repulsive force between the magnetic field established by the driver and the magnetic field induced by the induction element to be much greater than the attractive force between the static end of the main body 1 and the dynamic end of the main body 1. Therefore, in this case, the repulsive magnetic field formed between the driver and the induction element can drive the dynamic end of the main body 1 away from the static end of the main body 1, causing the switch to switch to the off state. In addition, the greater the surge in current caused by the short circuit or fault, the stronger the repulsive magnetic field formed between the driver and the induction element, and the faster the dynamic end of the main body 1 moves away from the static end of the main body 1, that is, the faster the switch opens and closes.

[0173] Example 11

[0174] See also Figure 32 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a compound drive method.

[0175] Both the driver and inductor are coil disks 2, connected in series to form a coil circuit. That is, the driver's output is connected to the inductor's input via a wire, and vice versa. Furthermore, the rotation direction of the coil within the driver is opposite to that of the inductor's coil.

[0176] If the output terminal of the driving component is connected to the input terminal of the inductive component through a wire, the input terminal of the driving component is the input terminal of the coil series circuit, and the output terminal of the inductive component is the output terminal of the coil series circuit.

[0177] If the output terminal of the induction component is connected to the input terminal of the driving component through a wire, the input terminal of the induction component is the input terminal of the coil series circuit, and the output terminal of the driving component is the output terminal of the coil series circuit.

[0178] The exposed surfaces of the main body 1, including the moving end, driver, and inductor, are insulated. The cable connected to the incoming end of the coil series circuit serves as the incoming cable for the switch, while the outgoing end of the coil series circuit is connected to the stationary end of the main body 1 via a wire. The exposed portion of the moving end of the main body 1 features a mounting area for the outgoing cable, which can also transmit power to the outgoing cable.

[0179] In short:

[0180] If both the driving coil disk 2 and the inductive coil disk 2 are located at the moving end of the main body 1, and the coil circuit formed by the two is connected in series to the line on the output side of the switch, then the through hole in the center of the upper coil disk 2 can allow the moving end of the main body 1 to pass through, and its spatial position remains unchanged during the closing and opening of the switch; while the lower coil disk 2 is fixed to the moving end of the main body 1.

[0181] In short:

[0182] If both the driving coil disk 2 and the inductive coil disk 2 are mounted on the pull rod connected to the moving end of the main body 1, and the coil circuit formed by the two is connected in series to the circuit on the output side of the switch, then the through hole in the center of the upper coil disk 2 can allow the pull rod to pass through, and its spatial position remains unchanged during the closing and opening of the switch; while the lower coil disk 2 is fixed to the rod body.

[0183] In this embodiment:

[0184] When the switch maintains an active state and the circuit it is connected to operates normally, that is, the current in the circuit enters through the coil, is then conducted through the static end portion of the main body 1 to the dynamic end portion of the main body 1, and finally discharged from the dynamic end portion of the main body 1. In this case, the switch is designed so that the repulsive force between the magnetic field created by the driver and the magnetic field induced by the induction element is much lower than the attractive force between the static end portion of the main body 1 and the dynamic end portion of the main body 1. Therefore, in this case, the switch can always maintain an active state.

[0185] When the switch is in the on state and the circuit in which the switch is located suddenly experiences a short circuit or fault, the current in the circuit enters through the coil, then passes through the static end portion of the main body 1 to the dynamic end portion of the main body 1, and is finally discharged from the dynamic end portion of the main body 1. In this case, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times that of the normal state, causing the repulsive force between the magnetic field established by the driver and the magnetic field induced by the induction element to be much greater than the attractive force between the static end portion of the main body 1 and the dynamic end portion of the main body 1. Therefore, in this case, the repulsive magnetic field formed between the driver and the induction element can drive the dynamic end portion of the main body 1 away from the static end portion of the main body 1, causing the switch to switch to the off state. In addition, the greater the surge in current caused by the short circuit or fault, the stronger the repulsive magnetic field formed between the driver and the induction element, and the faster the dynamic end portion of the main body 1 moves away from the static end portion of the main body 1, that is, the faster the switch opens and closes.

[0186] Example 12

[0187] See also Figure 33 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a compound drive method.

[0188] Both the driver and inductor are coil disks 2, connected in parallel to form a coil circuit. Specifically, the driver's input terminal is connected to the inductor's input terminal via a wire, and the driver's output terminal is connected to the inductor's output terminal via a wire. Furthermore, the rotation direction of the coil within the driver and the inductor are opposite.

[0189] The input terminals of the driving component and the inductive component and the wires connected therebetween are the input terminals of the coil in parallel, and the output terminals of the driving component and the inductive component and the wires connected therebetween are the output terminals of the coil in parallel.

[0190] Here, the exposed surfaces of the moving end part, the driving part and the inductive part of the main body 1 are all insulated; a circuit that is connected to its moving contact is provided inside the moving end part of the main body 1, and the circuit is connected to the incoming end of the coil parallel circuit through a wire, and the cable connected to the outgoing end of the coil parallel circuit serves as the circuit on the outgoing side of the switch.

[0191] In short:

[0192] If both the driving coil disk 2 and the inductive coil disk 2 are located at the moving end of the main body 1, and the coils formed by the two are connected in parallel and in series to the circuit on the output side of the switch, then the through hole in the center of the upper coil disk 2 allows the moving end of the main body 1 to pass through, and its spatial position remains unchanged during the closing and opening of the switch; while the lower coil disk 2 is fixed to the moving end of the main body 1.

[0193] In short:

[0194] If both the driving coil disk 2 and the inductive coil disk 2 are mounted on the pull rod connected to the moving end of the main body 1, and the coils formed by the two are connected in parallel and in series to the circuit on the output side of the switch, the through hole in the center of the upper coil disk 2 allows the pull rod to pass through, and its spatial position remains unchanged during the closing and opening of the switch; while the lower coil disk 2 is fixed to the rod body.

[0195] In this embodiment:

[0196] When the switch maintains an active state and the circuit it is connected to operates normally, the current in the circuit enters through the static end of the main body 1, is directed through the dynamic end of the main body 1 to the coil, and finally discharged through the coil. In this case, the repulsive force between the magnetic field created by the driver and the magnetic field induced by the induction element is much lower than the attractive force between the static end and the dynamic end of the main body 1. Therefore, the switch can always maintain an active state.

[0197] When the switch is in the on state and the circuit in which the switch is located suddenly experiences a short circuit or fault, the current in the circuit enters the static end of the body 1, is then directed through the dynamic end of the body 1 to the coil parallel path, and finally is discharged from the coil parallel path. In this case, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times that of the normal state, causing the repulsive force between the magnetic field established by the driver and the magnetic field induced by the induction element to be much greater than the attractive force between the static end of the body 1 and the dynamic end of the body 1. Therefore, in this case, the repulsive magnetic field formed between the driver and the induction element can drive the dynamic end of the body 1 away from the static end of the body 1, causing the switch to switch to the off state. In addition, the greater the surge in current caused by the short circuit or fault, the stronger the repulsive magnetic field formed between the driver and the induction element, and the faster the dynamic end of the body 1 moves away from the static end of the body 1, that is, the faster the switch opens and closes.

[0198] Example 13

[0199] See also Figure 34 This embodiment provides an active eddy current self-driven repulsion switch, which is applicable to the above-mentioned technical solution using a compound drive method.

[0200] Both the driver and inductor are coil disks 2, connected in parallel to form a coil circuit. Specifically, the driver's input terminal is connected to the inductor's input terminal via a wire, and the driver's output terminal is connected to the inductor's output terminal via a wire. Furthermore, the rotation direction of the coil within the driver and the inductor are opposite.

[0201] The input terminals of the driving component and the inductive component and the wires connected therebetween are the input terminals of the coil in parallel, and the output terminals of the driving component and the inductive component and the wires connected therebetween are the output terminals of the coil in parallel.

[0202] Here, the exposed surfaces of the moving end part, the driving part and the inductive part of the main body 1 are all insulated; the cable connected to the incoming end of the coil parallel circuit serves as the line on the incoming side of the switch, and the outgoing end of the coil parallel circuit is connected to the static end part of the main body 1 through a wire, and the cable connected to the moving end part of the main body 1 serves as the line on the outgoing side of the switch.

[0203] In short:

[0204] If both the driving coil disk 2 and the inductive coil disk 2 are located at the moving end of the main body 1, and the coils formed by the two are connected in parallel and in series to the circuit on the output side of the switch, then the through hole in the center of the upper coil disk 2 allows the moving end of the main body 1 to pass through, and its spatial position remains unchanged during the closing and opening of the switch; while the lower coil disk 2 is fixed to the moving end of the main body 1.

[0205] In short:

[0206] If both the driving coil disk 2 and the inductive coil disk 2 are mounted on the pull rod connected to the moving end of the main body 1, and the coils formed by the two are connected in parallel and in series to the circuit on the output side of the switch, the through hole in the center of the upper coil disk 2 allows the pull rod to pass through, and its spatial position remains unchanged during the closing and opening of the switch; while the lower coil disk 2 is fixed to the rod body.

[0207] In this embodiment:

[0208] When the switch maintains an active state and the circuit it is connected to operates normally, that is, the current in the circuit enters the coil in parallel, is then conducted through the static end portion of the main body 1 to the dynamic end portion of the main body 1, and finally discharged from the dynamic end portion of the main body 1. In this case, the switch is designed so that the repulsive force between the magnetic field created by the driver and the magnetic field induced by the induction element is much lower than the attractive force between the static end portion of the main body 1 and the dynamic end portion of the main body 1. Therefore, in this case, the switch can always maintain an active state.

[0209] When the switch is in the on state and the circuit in which the switch is located suddenly experiences a short circuit or fault, the current in the circuit enters the coil in parallel, is then directed through the static end portion of the body 1 to the dynamic end portion of the body 1, and finally is discharged from the dynamic end portion of the body 1. In this case, due to a short circuit or fault, the current in the circuit in which the switch is located surges. At this time, the current in the circuit is more than ten times that of the normal state, causing the repulsive force between the magnetic field established by the driver and the magnetic field induced by the induction element to be much greater than the attractive force between the static end portion of the body 1 and the dynamic end portion of the body 1. Therefore, in this case, the repulsive magnetic field formed between the driver and the induction element can drive the dynamic end portion of the body 1 away from the static end portion of the body 1, causing the switch to switch to the off state. In addition, the greater the surge in current caused by the short circuit or fault, the stronger the repulsive magnetic field formed between the driver and the induction element, and the faster the dynamic end portion of the body 1 moves away from the static end portion of the body 1, that is, the faster the switch opens and closes.

[0210] Example 14

[0211] See also Figure 35 and Figure 36 , this embodiment provides a switch closing solution applicable to any of the above embodiments.

[0212] The movable end of the body 1 is externally connected to a pull rod, and the pull rod is fixedly connected to the movable end of the body 1 via a connector. The pull rod and the connector are preferably made of insulating material.

[0213] A lock slot 002 and a lock 003 are located on the side of the pull rod, and an elastic member is located below the pull rod. The spatial position of the lock 003 remains unchanged, and when the lock slot 002 aligns with the lock 003, the lock tongue of the lock 003 springs into the lock slot 002. The elastic member is relaxed when the switch is in the on state, and compressed when the switch is in the off state.

[0214] In this embodiment:

[0215] When the switch is switched to the off state, the elastic member is compressed, and the lock slot 002 moves to align with the lock 003. The lock tongue of the lock 003 springs into the lock slot 002, locking the pull rod and maintaining the off state. By contacting the lock 003 and locking the pull rod, the pull rod resets under the elastic potential energy of the elastic member, and the switch switches back to the on state. The on state is maintained by the attraction force between the static end portion of the body 1 and the dynamic end portion of the body 1.

[0216] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the present invention. In addition, any non-creative modifications made to the present invention by those skilled in the art without making any creative work still fall within the scope of protection of the present invention.

Claims

1. An active eddy current self-driven repulsive switch, the switch comprising a main body (1), wherein the main body (1) comprises a moving end portion for controlling the switching of the switch on and off by closing and opening actions, characterized in that: Also includes: A driving member connected in series with the main body (1) and utilizing the current surged in the circuit where the switch is located to establish a magnetic field; The induction member is located at the position of any magnetic field induction surface of the driving member, and establishes a magnetic field that repels the driving member by inducing the magnetic field of the driving member, thereby cooperating with the moving end part of the driving member to drive the main body (1) to control the switch to switch to an open circuit state.

2. The active eddy current self-driven repulsion switch according to claim 1, characterized in that: The magnetic field direction of the driving component and the magnetic field direction of the induction component are both directed toward each other and penetrate each other.

3. The active eddy current self-driven repulsion switch according to claim 1, characterized in that: Either the driving member or the inductive member is connected to the moving end portion of the main body (1).

4. The active eddy current self-driven repulsion switch according to claim 3, characterized in that: The induction member is connected to the moving end portion of the main body (1), and the driving member is not within the travel path of the induction member during the process of the switch being switched to the off-circuit state.

5. The active eddy current self-propelled repulsion switch according to claim 3, characterized in that: The driving member is connected to the moving end portion of the main body (1), and the induction member is not within the travel path of the driving member during the process of the switch being switched to the off-circuit state.

6. The active eddy current self-driven repulsion switch according to claim 1, characterized in that: The driving member is a coil disk (2), and is connected in series to the incoming line side or the outgoing line side of the main body (1).

7. The active eddy current self-driven repulsion switch according to claim 6, characterized in that: The induction component is an eddy current disk (3).

8. The active eddy current self-driven repulsion switch according to claim 1, characterized in that: The induction element and the driving element are essentially the same and are connected in series with each other, and the series circuit formed by the two is connected in series to the incoming line side or the outgoing line side of the main body (1).

9. The active eddy current self-driven repulsion switch according to claim 1, characterized in that: The induction element and the driving element are essentially the same and are connected in parallel with each other, and the parallel circuit formed by the two is connected in series to the incoming line side or the outgoing line side of the main body (1).

10. The active eddy current self-driven repulsion switch according to claim 8 or 9, characterized in that: The driving component and the induction component are both coil disks (2).

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