阅读说明：本技术 电磁斥力操作机构的控制方法、控制电路及操作机构 (Control method and control circuit of electromagnetic repulsion operating mechanism and operating mechanism ) 是由 许元震 方太勋 吕玮 谢晔源 杨兵 石巍 王文杰 陈羽 孙超 于 2020-04-08 设计创作，主要内容包括：本申请涉及一种电磁斥力操作机构的控制方法,包括：分别断开第一充放电回路与线圈之间的电连接以及第二充放电回路与所述线圈之间的电连接,所述线圈用于驱动电磁斥力操作机构的执行部件,所述第一充放电回路和第二充放电回路并联连接；闭合所述第一充放电回路与所述线圈之间的电连接,利用所述第一充放电回路对所述线圈放电；断开所述第一充放电回路与所述线圈之间的电连接,并闭合所述第二充放电回路与所述线圈之间的电连接,利用所述第二充放电回路对所述线圈放电。(The application relates to a control method of an electromagnetic repulsion force operating mechanism, which comprises the following steps: the method comprises the steps that the electric connection between a first charge-discharge loop and a coil and the electric connection between a second charge-discharge loop and the coil are respectively disconnected, the coil is used for driving an execution part of an electromagnetic repulsion operation mechanism, and the first charge-discharge loop and the second charge-discharge loop are connected in parallel; closing the electric connection between the first charge-discharge loop and the coil, and discharging the coil by using the first charge-discharge loop; and disconnecting the electric connection between the first charge-discharge loop and the coil, closing the electric connection between the second charge-discharge loop and the coil, and discharging the coil by using the second charge-discharge loop.)

1. A control method of an electromagnetic repulsion operation mechanism, comprising:

the method comprises the steps that the electric connection between a first charge-discharge loop and a coil and the electric connection between a second charge-discharge loop and the coil are respectively disconnected, the coil is used for driving an execution part of an electromagnetic repulsion operation mechanism, and the first charge-discharge loop and the second charge-discharge loop are connected in parallel;

closing the electric connection between the first charge-discharge loop and the coil, and discharging the coil by using the first charge-discharge loop;

and disconnecting the electric connection between the first charge-discharge loop and the coil, closing the electric connection between the second charge-discharge loop and the coil, and discharging the coil by using the second charge-discharge loop.

2. The method of claim 1, wherein the opening of the electrical connection between the first charge and discharge circuit and the coil and the closing of the electrical connection between the second charge and discharge circuit and the coil, the discharging of the coil with the second charge and discharge circuit, comprises:

and when the discharge index of the first charge-discharge loop is lower than a first threshold value, disconnecting the electric connection between the first charge-discharge loop and the coil, closing the electric connection between the second charge-discharge loop and the coil, and discharging the coil by using the second charge-discharge loop.

3. The method of claim 2, wherein the opening of the electrical connection between the first charge-discharge circuit and the coil and the closing of the electrical connection between the second charge-discharge circuit and the coil when the discharge indicator of the first charge-discharge circuit is below a first threshold, the discharging of the coil with the second charge-discharge circuit comprises:

and when the discharge current of the first charge-discharge loop is smaller than a second threshold value, disconnecting the electric connection between the first charge-discharge loop and the coil, closing the electric connection between the second charge-discharge loop and the coil, and discharging the coil by using the second charge-discharge loop.

4. The method of claim 2, wherein the opening of the electrical connection between the first charge-discharge circuit and the coil and the closing of the electrical connection between the second charge-discharge circuit and the coil when the discharge indicator of the first charge-discharge circuit is below a first threshold, the discharging of the coil with the second charge-discharge circuit comprises:

and when the discharge time of the first charge-discharge loop is greater than a third threshold value, disconnecting the electric connection between the first charge-discharge loop and the coil, closing the electric connection between the second charge-discharge loop and the coil, and discharging the coil by using the second charge-discharge loop.

5. The method of claim 2, wherein the opening of the electrical connection between the first charge-discharge circuit and the coil and the closing of the electrical connection between the second charge-discharge circuit and the coil when the discharge indicator of the first charge-discharge circuit is below a first threshold, the discharging of the coil with the second charge-discharge circuit comprises:

and when the stroke of the executing component is larger than a fourth threshold value, the first charge-discharge loop is disconnected from the coil, the second charge-discharge loop is closed from the coil, and the coil is discharged by the second charge-discharge loop.

6. The method of claim 1, wherein the first discharge loop comprises a first semiconductor switch and the second discharge loop comprises a second semiconductor switch;

the closing of the electrical connection between the first charge-discharge circuit and the coil, and the discharging of the coil by the first charge-discharge circuit, includes:

sending a trigger pulse to the first semiconductor switch;

the disconnecting of the electrical connection between the first charge-discharge loop and the coil, and the closing of the electrical connection between the second charge-discharge loop and the coil, the discharging of the coil by the second charge-discharge loop, includes:

sending a trigger pulse to the second semiconductor switch.

7. A control circuit of an electromagnetic repulsion operation mechanism, comprising:

a coil for driving an actuator of the electromagnetic repulsion operation mechanism;

the first charge-discharge loop and the second charge-discharge loop are connected in parallel and are connected with the coil in series;

the first charge-discharge loop comprises a first capacitor and a first semiconductor switch which are connected in series;

the second charge-discharge loop comprises a second capacitor and a second semiconductor switch which are connected in series;

and the controller is connected with the semiconductor switch and the second semiconductor switch, controls the first charge-discharge loop and the second charge-discharge loop and discharges electricity to the coil.

8. The control circuit of claim 7, further comprising:

a freewheeling diode connected in anti-parallel with the first charge-discharge circuit and the second charge-discharge circuit;

the first semiconductor switch and the second semiconductor switch comprise thyristors or fully-controlled semiconductor switch units;

wherein the full control type semiconductor switch unit includes: a reverse diode and any one element of GTO, GTR, MOSFET, IGBT, IEGT and IGCT connected in parallel with the reverse diode;

the coil is an opening coil or a closing coil.

9. An electromagnetic repulsion operation mechanism comprising:

a coil for driving an actuator of the electromagnetic repulsion operation mechanism;

the first charge-discharge loop and the second charge-discharge loop are connected in parallel and are connected with the coil in series;

the first charge-discharge loop comprises a first capacitor and a first semiconductor switch which are connected in series;

the second charge-discharge loop comprises a second capacitor and a second semiconductor switch which are connected in series;

a controller connected to the semiconductor switch and the second semiconductor switch, performing the method of at least one of claims 1 to 6, controlling the first charge and discharge circuit and the second charge and discharge circuit to discharge to the coil.

And the executing component is driven by the coil of the control circuit to execute the opening or closing action.

10. An electromagnetic repulsion operation mechanism according to claim 9, further comprising:

a freewheeling diode connected in anti-parallel with the first charge-discharge circuit and the second charge-discharge circuit;

the first semiconductor switch and the second semiconductor switch comprise thyristors or fully-controlled semiconductor switch units;

wherein the full control type semiconductor switch unit includes: a reverse diode and any one element of GTO, GTR, MOSFET, IGBT, IEGT and IGCT connected in parallel with the reverse diode;

the coil is an opening coil or a closing coil.

11. An electric power apparatus comprising the electromagnetic repulsion force operation mechanism of claim 10 or the control circuit of any one of claims 7 to 8.

Technical Field

The invention belongs to the field of electric control, and particularly relates to a control method of an electromagnetic repulsion operating mechanism, a control circuit of the electromagnetic repulsion operating mechanism, the electromagnetic repulsion operating mechanism and electronic equipment.

Background

The fast mechanical switch based on the electromagnetic repulsion principle is widely applied to various occasions needing high-speed switches, such as a direct-current circuit breaker, an alternating-current fault current limiter, a fast arc extinguisher and the like, due to the characteristics of small inherent action time, high opening and closing speed, excellent action consistency and the like.

However, as the requirements for the on/off current capability and the on/off time of the switch are continuously improved, the mass of the moving part of the switch is continuously increased, and an electromagnetic repulsion operating mechanism is required to provide larger output force to ensure the high-speed movement of the switch. Increasing the capacitance of the energy storage capacitor or increasing the number of coil turns contributes to increasing the electromagnetic repulsion, but at the same time results in an increase in the intrinsic operating time of the switch. The improvement of the pre-charging voltage of the energy storage capacitor is also a feasible scheme, but the requirements on the electrical stress and the insulation of the internal components of the energy storage and discharge circuit are higher, and the realization difficulty is increased. Therefore, the existing energy storage and discharge loop has certain technical bottleneck.

Disclosure of Invention

The present application aims to provide a control method of an electromagnetic repulsion operation mechanism, a control circuit of an electromagnetic repulsion operation mechanism, an electromagnetic repulsion operation mechanism and an electronic device.

An embodiment of the present application provides a control method of an electromagnetic repulsion operation mechanism, including: the method comprises the steps that the electric connection between a first charge-discharge loop and a coil and the electric connection between a second charge-discharge loop and the coil are respectively disconnected, the coil is used for driving an execution part of an electromagnetic repulsion operation mechanism, and the first charge-discharge loop and the second charge-discharge loop are connected in parallel; closing the electric connection between the first charge-discharge loop and the coil, and discharging the coil by using the first charge-discharge loop; and disconnecting the electric connection between the first charge-discharge loop and the coil, closing the electric connection between the second charge-discharge loop and the coil, and discharging the coil by using the second charge-discharge loop.

Another embodiment of the present application also provides a control circuit of an electromagnetic repulsion operation mechanism, including: a coil for driving an actuator of the electromagnetic repulsion operation mechanism; the first charge-discharge loop and the second charge-discharge loop are connected in parallel and are connected with the coil in series; the first charge-discharge loop comprises a first capacitor and a first semiconductor switch which are connected in series; the second charge-discharge loop comprises a second capacitor and a second semiconductor switch which are connected in series; and the controller is connected with the semiconductor switch and the second semiconductor switch, executes any one of the methods, controls the first charge-discharge loop and the second charge-discharge loop, and discharges electricity to the coil.

Another embodiment of the present application also provides an electromagnetic repulsion operation mechanism, including: any of the aforementioned control circuits; and the executing component is driven by the coil of the control circuit to execute the opening or closing action.

Another embodiment of the present application also provides an electronic device including any one of the electromagnetic repulsion operation mechanisms described above.

By utilizing the control method of the electromagnetic repulsion operation mechanism, the control circuit of the electromagnetic repulsion operation mechanism and the electromagnetic repulsion operation mechanism, at least two charging and discharging loops are configured for the coil of the electromagnetic mechanism, so that the working electric energy reserve of the electromagnetic repulsion operation mechanism can be improved on the basis of not changing the time constant of the charging and discharging loops and not changing the charging voltage of the charging and discharging loops. Therefore, the movement speed of the switch can be obviously improved on the premise of not prolonging the inherent action time of the quick switch and not increasing the electrical stress of components of the energy storage and discharge loop. The reliability of the electromagnetic repulsion operation mechanism is increased. Meanwhile, the scheme does not have higher requirements on the electrical stress and insulation of components inside the energy storage and discharge circuit.

Drawings

Fig. 1 is a schematic flow chart showing a control method of an electromagnetic repulsion operation mechanism according to an embodiment of the present application.

Fig. 2 shows a schematic diagram of a control circuit of an electromagnetic repulsion force operation mechanism according to another embodiment of the present application.

Fig. 3 shows a schematic composition diagram of an electromagnetic repulsion operation mechanism of another embodiment of the present application.

Fig. 4 shows a schematic composition diagram of an electromagnetic repulsion operation mechanism of another embodiment of the present application.

Detailed Description

The following embodiments of the present invention relate to a method for controlling an electromagnetic repulsion operation mechanism, a control circuit for an electromagnetic repulsion operation mechanism, and an electronic device, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

The present application aims to provide a control method of an electromagnetic repulsion operation mechanism, a control circuit of an electromagnetic repulsion operation mechanism, an electromagnetic repulsion operation mechanism and an electronic device.

An embodiment of the present application provides a control method of an electromagnetic repulsion operation mechanism, including: the method comprises the steps that the electric connection between a first charge-discharge loop and a coil and the electric connection between a second charge-discharge loop and the coil are respectively disconnected, the coil is used for driving an execution part of an electromagnetic repulsion operation mechanism, and the first charge-discharge loop and the second charge-discharge loop are connected in parallel; closing the electric connection between the first charge-discharge loop and the coil, and discharging the coil by using the first charge-discharge loop; and disconnecting the electric connection between the first charge-discharge loop and the coil, closing the electric connection between the second charge-discharge loop and the coil, and discharging the coil by using the second charge-discharge loop.

Another embodiment of the present application also provides a control circuit of an electromagnetic repulsion operation mechanism, including: a coil for driving an actuator of the electromagnetic repulsion operation mechanism; the first charge-discharge loop and the second charge-discharge loop are connected in parallel and are connected with the coil in series; the first charge-discharge loop comprises a first capacitor and a first semiconductor switch which are connected in series; the second charge-discharge loop comprises a second capacitor and a second semiconductor switch which are connected in series; and the controller is connected with the semiconductor switch and the second semiconductor switch, executes any one of the methods, controls the first charge-discharge loop and the second charge-discharge loop, and discharges electricity to the coil.

Another embodiment of the present application also provides an electromagnetic repulsion operation mechanism, including: any of the aforementioned control circuits; and the executing component is driven by the coil of the control circuit to execute the opening or closing action.

Another embodiment of the present application also provides an electronic device including any one of the electromagnetic repulsion operation mechanisms described above.

By utilizing the control method of the electromagnetic repulsion operation mechanism, the control circuit of the electromagnetic repulsion operation mechanism and the electromagnetic repulsion operation mechanism, at least two charging and discharging loops are configured for the coil of the electromagnetic mechanism, so that the working electric energy reserve of the electromagnetic repulsion operation mechanism can be improved on the basis of not changing the time constant of the charging and discharging loops and not changing the charging voltage of the charging and discharging loops. Therefore, the movement speed of the switch can be obviously improved on the premise of not prolonging the inherent action time of the quick switch and not increasing the electrical stress of components of the energy storage and discharge loop. The reliability of the electromagnetic repulsion operation mechanism is increased. Meanwhile, the scheme does not have higher requirements on the electrical stress and insulation of components inside the energy storage and discharge circuit.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be understood that the terms "first," "second," "third," and "fourth," etc. in the claims, description, and drawings of the present application are used for distinguishing between different objects and not for describing a particular order. The terms "comprises" and "comprising," when used in the specification and claims of this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the present application herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the application. As used in the specification and claims of this application, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the specification and claims of this application refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

Fig. 1 is a schematic flow chart showing a control method of an electromagnetic repulsion operation mechanism according to an embodiment of the present application. As shown in fig. 1, method 1000 may include S110, S120, and S130.

In S110, the method may include disconnecting an electrical connection between the first charge and discharge circuit and the coil; and may include breaking an electrical connection between the second charge and discharge circuit and the coil. Wherein the coil may be used to drive an actuator of the electromagnetic repulsion operation mechanism, and the first charge-discharge circuit and the second charge-discharge circuit may be connected in parallel. Optionally, the step S110 may further include charging the first charge-discharge circuit and the second charge-discharge circuit, respectively.

Alternatively, the first semiconductor switch may be included in the first charge and discharge circuit, and the second semiconductor switch may be included in the second charge and discharge circuit. In S110, the method may further include transmitting turn-off signals to the first semiconductor switch and the second semiconductor switch, respectively. Alternatively, the turn-off signal may comprise an electrical signal, an optical signal, or other form of signal. The shutdown signal may include a voltage signal or a current signal. The shutdown signal may include a pulse signal or a direct current signal.

Optionally, in S110, the method may further include acquiring charging indexes of the first charging and discharging loop and the second charging and discharging loop, respectively, and detecting whether the charging index reaches a first preset value. Optionally, if the charging indexes of the first charging and discharging loop and the second charging and discharging loop both reach the first preset value, the electromagnetic repulsion operating mechanism may enter a ready state, and the subsequent steps of the method may be executed. Optionally, the first charge-discharge circuit and the second charge-discharge circuit may each include an energy storage element. Further, the energy storage element may be a capacitor. Alternatively, the charge indicator may be the voltage across the capacitor.

As shown in fig. 1, closing the electrical connection between the first charge and discharge circuit and the coil and discharging the coil by using the first charge and discharge circuit may be included in S120. Thereby passing a preset current through the coil and generating an electromagnetic field. The electromagnetic field can generate an electromagnetic action with a magnetic field component in the electromagnetic repulsion operation mechanism and push an actuating component of the electromagnetic repulsion operation mechanism to generate an expected action.

Optionally, accepting the preset instruction may be included in S120. The preset instruction may be an action instruction of the electromagnetic repulsion operation mechanism, or may also be a preset trigger condition for the electromagnetic repulsion operation mechanism to act.

Optionally, sending a trigger signal to the first semiconductor switch may be further included in S120. The existence form of the trigger signal may be similar to the aforementioned turn-off signal, and is not described herein. Further, in S120, sending a shutdown signal to the second semiconductor may be further included to ensure that the electrical connection between the second charge and discharge circuit and the coil is effectively disconnected. The turn-off signal is similar to the turn-off signal in S110 and will not be described in detail.

As shown in fig. 1, in S130, the electrical connection between the first charge and discharge circuit and the coil may be opened, and the electrical connection between the second charge and discharge circuit and the coil may be closed. And the second charge-discharge loop is used for replacing the first charge-discharge loop and continuously discharging the coil. And continuing to maintain the coil to pass through the preset current, and continuing to maintain the electromagnetic field generated by the coil and maintaining the expected action of the actuating part of the electromagnetic repulsion operating mechanism. Optionally, charging the first charge-discharge circuit may be further included in S130.

Alternatively, sending a turn-off signal to the first semiconductor switch and sending a trigger signal to the second semiconductor switch may be included in S130. The turn-off signal and the trigger signal are similar to the signals with the same name, and are not described herein.

Optionally, S130 may include: when the discharging index of the first charging and discharging loop is in the first threshold value, the first charging and discharging loop is disconnected from the coil, and the second charging and discharging loop is closed from the coil. The discharge index is a quantitative index for measuring the continuous discharge capacity of the first charge-discharge loop.

Alternatively, the discharge indicator may include a voltage across the capacitor and a discharge current of the first charge-discharge loop. At this time, S130 may include: and when the discharge current of the first charge-discharge loop is smaller than a second threshold value, the first charge-discharge loop is disconnected from the coil, the second charge-discharge loop is closed from the coil, and the second charge-discharge loop is used for discharging electricity to the coil.

Or at S130 may include: and when the discharge time of the first charge-discharge loop is greater than a third threshold value, the first charge-discharge loop is disconnected from the coil, the second charge-discharge loop is closed from the coil, and the coil is discharged by the second charge-discharge loop.

Alternatively, it may be determined whether the discharge index of the first charge-discharge circuit is lower than the first threshold by determining whether the stroke of the actuator is larger than a fourth threshold. That is, in S130, may include: and when the stroke of the execution component is larger than a fourth threshold value, the first charge-discharge loop is disconnected from the coil, the second charge-discharge loop is closed from the coil, and the coil is discharged by the second charge-discharge loop.

Optionally, after S130, the method may further include: and (3) disconnecting the electrical connection between the N-1 th charging and discharging loop and the coil, and closing the electrical connection between the N-1 th charging and discharging loop and the coil. And N is an integer more than or equal to 3, and the Nth charge-discharge loop and the (N-1) th charge-discharge loop are connected with the first charge-discharge loop in parallel. Further, after S130, the method may further include: and when the discharge index of the (N-1) th charge-discharge loop is smaller than the first threshold value, disconnecting the electrical connection between the (N-1) th charge-discharge loop and the coil, and closing the electrical connection between the (N-1) th charge-discharge loop and the coil.

Fig. 2 shows a schematic diagram of a control circuit of an electromagnetic repulsion force operation mechanism according to another embodiment of the present application.

As shown in fig. 2, the control circuit 2000 may include: coil 21, charge/discharge circuit 221, charge/discharge circuit 222, and controller 23.

Wherein the coil 21 may be fixedly connected with a fixing part (not shown) of an electromagnetic repulsion operation mechanism (not shown). The coil 21 and the aforementioned fixing means may cooperate with an actuator (not shown) of the operating mechanism. Wherein the actuating member may comprise a magnetic assembly. The magnetic assembly may magnetically cooperate with the coil 21. Alternatively, the coil 21 may be fixedly connected to an actuator of the actuator, the actuator may include a magnetic assembly, and the coil 21 may cooperate with the magnetic assembly in the actuator's fixed part.

When the coil 21 passes a predetermined current, a magnetic field may be generated at the coil 21. The magnetic field may magnetically interact with a magnetic assembly in a stationary part of the electromagnetic repulsion operator. So that the actuator part can be brought into mechanical movement relative to the fixed part. Alternatively, the magnetic force may be an attractive force or a repulsive force. Alternatively, the electromagnetic repulsion operation mechanism may be included in a kind of electronic equipment, which may include any one of a circuit breaker, a current limiter, and an arc extinguisher. Further, the electronic device may include any one of a dc circuit breaker, an ac fault current limiter, and a fast arc extinguisher.

Further, the coil 21 generates a magnetic force for generating a closing action or an opening action. Alternatively, the coil 21 may include a closing coil and an opening coil. The switching-on coil can be used for generating switching-on action, and the switching-off coil can be used for generating switching-off action.

As shown in fig. 2, the charge/discharge circuit 221 and the charge/discharge circuit 222 may be connected in parallel with each other, and the charge/discharge circuit 221 and the charge/discharge circuit 222 connected in parallel may be connected to the coil 21. Alternatively, the charge and discharge circuit 221 and the charge and discharge circuit 222 may respectively and independently provide the coil 21 with a preset power excitation. The electrical energy excitation may be applied to the coil 21 to generate a predetermined current. The predetermined current may thus generate a predetermined magnetic field. The preset magnetic field can generate magnetic action with a magnetic element in the electromagnetic repulsion operation mechanism, and the magnetic action can push an actuating component of the electromagnetic repulsion operation mechanism to generate expected action. Wherein the magnetic action may be manifested as an electromagnetic attraction or an electromagnetic repulsion. The desired actions may include an opening action and a closing action. Alternatively, the control circuit 2000 may be used as a switching-off circuit unit, and may drive the coil 21 to perform a switching-off operation, in which case the coil 21 may be referred to as a switching-off coil. Alternatively, the control circuit 2000 may be a closing circuit unit, and the driving coil 21 may generate a closing operation, and at this time, the driving coil 21 may be a closing coil.

Alternatively, the charge and discharge circuit 221 may include a capacitor C21 and a semiconductor switch S21 connected in series; the charge and discharge circuit 222 may include a capacitor C22 and a semiconductor switch S22 connected in series. The capacitor C21 may be used as an energy storage device of the charge/discharge circuit 221, and the capacitor C22 may be used as an energy storage device of the charge/discharge circuit 222. Before the electromagnetic repulsion actuating mechanism acts as expected, the semiconductor switch S21 and the semiconductor switch S22 can be turned off. Further, after the semiconductor switch S21 and the semiconductor switch S22 are turned off, the capacitor C21 and the capacitor C22 may be charged, respectively. When the electromagnetic repulsion operation mechanism needs to act, the semiconductor switch S21 and the semiconductor switch S22 can be closed in sequence, and meanwhile, the fully charged capacitor C21 and the fully charged capacitor C22 are used for independently supplying power to the coil 21 in sequence, so that the electromagnetic repulsion operation mechanism is pushed to act in an expected manner.

Alternatively, the capacitor C21 and the capacitor C22 may be a single capacitor, or may be a capacitor array formed by combining two or more capacitors in series and parallel. Alternatively, the capacitor C21 and the capacitor C22 may be formed of other capacitive devices.

Alternatively, the semiconductor switches S21, S22 may both be thyristors. Alternatively, the semiconductor switches S21, S22 may be all-control type semiconductor switch cells. Further, the fully-controlled semiconductor switch unit is formed by connecting a reverse diode in parallel with any one of elements including GTO, GTR, MOSFET, IGBT, IEGT and IGCT.

Optionally, the control circuit 2000 may further include a freewheeling diode D1 in anti-parallel with the charge and discharge circuit 221 and the charge and discharge circuit 222.

Optionally, the control circuit 2000 may further include: a third charge-discharge circuit … … and an Nth charge-discharge circuit, wherein N is an integer greater than or equal to 3. The circuit topology structures of the third charge-discharge circuit, … … and the nth charge-discharge circuit are similar to the charge-discharge circuit 221, and are not described in detail.

Alternatively, the controller 23 may be connected with the semiconductor switches S1 and S2. Alternatively, the controller 23 may control the charge and discharge circuit 221 and the charge and discharge circuit 222 to discharge to the coil by controlling the semiconductor switches S1 and S2, respectively. Alternatively, the controller 23 may receive a preset instruction. The preset instruction may be an action instruction of the electromagnetic repulsion operation mechanism, or may also be a preset trigger condition for the electromagnetic repulsion operation mechanism to act.

Fig. 3 shows a schematic composition diagram of an electromagnetic repulsion operation mechanism of another embodiment of the present application.

As shown in fig. 3, the electromagnetic repulsion operation mechanism 3000 may include: an execution unit 31 and a control circuit 32.

The actuator 31 may perform the desired action under the influence of the coil 323 in the control circuit 32. Optionally, the desired action may include an opening action or a closing action. Optionally, the operating mechanism 3000 may further include a fixing member (not shown). The actuator 31 can be driven by the coil 323 to move relative to the fixed member as desired, so that the desired action can be achieved.

As shown in the exemplary embodiment, the executing section 31 may include: a lever 311 and a disc 312. Wherein the rod 311 and the disc 312 may be fixedly connected to each other. The disk 312 may include a magnetic assembly (not shown). Alternatively, the executing mechanism may not be limited thereto.

The control circuit 32 may include: charge/discharge circuit 321, charge/discharge circuit 322, coil 323, and controller 324. The coil 323 is connected with the magnetic component in the electromagnetic repulsion force operation mechanism in a matching way. When the coil 323 passes a preset current, a magnetic field is generated. The magnetic field can electromagnetically act with the magnetic component in the electromagnetic repulsion operation mechanism, so as to push the actuating component 31 to perform the desired action. Optionally, the desired action may include a closing action and an opening action. The coil 323 may be an opening coil or a closing coil.

The coil 323 in the control circuit 32 may be fixedly connected to a fixed part of the electromagnetic repulsion operation mechanism 3000. As shown in the illustrated embodiment, the coil 323 can be annular and fit over the rod 311 and slidably engage the rod 311. The actuator 31 is mechanically movable relative to the coil 323 and the stationary member in the direction of the axis OO' of the rod 311. Optionally, the coil 323 and the fixing component may also be matched with the executing component 31 in other manners, which is not described herein. The coil 323 may magnetically cooperate with the magnetic assembly of the disk 312. When a predetermined current is passed through the coil 323, a predetermined electromagnetic field may be generated in the coil 323. The predetermined electromagnetic field may electromagnetically interact with the magnetic assembly in the disc 312 to push the actuating member 31 to perform a predetermined movement relative to the fixed member, i.e., the operating mechanism 3000 may perform a predetermined action. As shown in the exemplary embodiment, the preset movement may be a linear movement along a line OO'. Alternatively, the preset movement may not be limited thereto. This preset movement may cause the actuator 31 to take the desired action as described above.

Alternatively, the coil 323 may be fixedly connected to the actuator 31, and the fixing component of the electromagnetic repulsion actuator may include a magnetic component, which may be magnetically engaged with the coil 323.

Charge/discharge circuit 321 and charge/discharge circuit 322 may be connected in parallel and electrically connected to coil 323. The charge and discharge circuit 321 may include a capacitor C321 and a semiconductor switch S321 connected in series; the charge and discharge circuit 322 may include a capacitor C322 and a semiconductor switch C322 connected in series. The capacitors C321 and C322 can be used as energy storage components to store electric energy and discharge the electric energy to the coil 323 when needed, so as to push the executing component 31 to perform a desired action.

The controller 324 may be connected with the semiconductor switches S321 and S322, respectively. The controller 324 may control the discharging process of the charging and discharging circuit 321 and the charging and discharging circuit 322 to the coil 323 by controlling the turn-off/turn-on of the semiconductor switches S321 and S322. Alternatively, the controller 324 may control the charging and discharging circuit 321 and the charging and discharging circuit 322 to discharge to the coil 323 by executing any one of the control methods described above, and push the executing component 31 to perform the desired action.

Alternatively, the controller 23 may receive a preset instruction. The preset instruction may be an action instruction of the electromagnetic repulsion operation mechanism, or may also be a preset trigger condition for the electromagnetic repulsion operation mechanism to act.

Optionally, the control circuit 32 may further include: the freewheeling diode D321 is connected in anti-parallel with the charge/discharge circuits 321 and 322. Alternatively, the semiconductor switches S1 and S2 may include thyristors or fully controlled type semiconductor switching cells. Wherein, the full control type semiconductor switching unit may include: a reverse diode and any one element of GTO, GTR, MOSFET, IGBT, IEGT and IGCT connected in parallel with the reverse diode.

Alternatively, the electromagnetic repulsion operation mechanism 3000 may be provided in a kind of electronic equipment, which may include at least one of a circuit breaker, a current limiter, and an arc extinguisher. Further, the electronic device may include any one of a dc circuit breaker, an ac fault current limiter, and a fast arc extinguisher.

Alternatively, the preset movement may include a closing movement and an opening movement. Alternatively, the point between the coil 323 and the disk 312 may be represented by electromagnetic repulsion, and may also be represented by electromagnetic attraction.

Fig. 4 shows a schematic composition diagram of an electromagnetic repulsion operation mechanism of another embodiment of the present application.

As shown in fig. 4, the operating mechanism 4000 may include: an execution unit 31, a control circuit 42, and a control circuit 43. The execution unit 41 may be similar to the execution unit in fig. 3, and is not described in detail.

The control circuit 42 and the control circuit 43 may be control circuits of any one of the electromagnetic repulsive force operation mechanisms described above. Optionally, the circuit topology of the control circuit 42 and the control circuit 43 may be similar to that of the control circuit shown in fig. 2, and is not described in detail.

Alternatively, control circuit 42 and control circuit 43 may each drive actuator 41 to perform a different desired action. Such as: the control circuit 42 can drive the actuator 41 to perform a closing operation; the control circuit 43 can drive the actuator 41 to perform the opening operation. At this time, the coil 423 of the control circuit 42 may be referred to as a closing coil; the coil 433 in the control circuit 43 may be referred to as a switching-off coil. Optionally, the coil 423 may also be a switching-off coil, and the control circuit 42 may drive the executing component 41 to implement the switching-off action; 433 may be a closing coil, and the control circuit 43 may drive the unit 41 to perform a closing operation.

The application also provides an electronic device, which comprises any electromagnetic repulsion force operating mechanism or any control circuit. Alternatively, the electronic device may include any one of a circuit breaker, a current limiter, and an arc extinguisher. Further, the electronic device may include any one of a dc circuit breaker, an ac fault current limiter, and a fast arc extinguisher.

At this time, the second capacitor in the second charge-discharge circuit can be used to replace the first capacitor in the first charge-discharge circuit to continue discharging to the coil, so that the coil current can be maintained to be not less than the first threshold value. The coil current can continue to act on the coil to continue to generate the electromagnetic effect and drive the electromagnetic repulsion operating mechanism connected with the coil to continue to generate the expected action. Therefore, the secondary acceleration of the movement of the actuating part (moving part) of the electromagnetic repulsion operating mechanism can be realized, the opening/closing action speed of the electromagnetic repulsion operating mechanism can be increased, and the reliability of the electromagnetic repulsion operating mechanism can be improved.

By utilizing the control method of the electromagnetic repulsion operation mechanism, the control circuit of the electromagnetic repulsion operation mechanism and the electromagnetic repulsion operation mechanism, at least two charging and discharging loops are configured for the coil of the electromagnetic mechanism, so that the working electric energy reserve of the electromagnetic repulsion operation mechanism can be improved on the basis of not changing the time constant of the charging and discharging loops and not changing the charging voltage of the charging and discharging loops. Therefore, the movement speed of the switch can be obviously improved on the premise of not prolonging the inherent action time of the quick switch and not increasing the electrical stress of components of the energy storage and discharge loop. The reliability of the electromagnetic repulsion operation mechanism is increased. Meanwhile, the scheme does not have higher requirements on the electrical stress and insulation of components inside the energy storage and discharge circuit.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. The technical features of the embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only intended to facilitate the understanding of the methods and their core concepts of the present application. Meanwhile, a person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of the present application. In view of the above, the description should not be taken as limiting the application.