Primary and secondary deep fusion circuit breaker mechanism and pole-mounted circuit breaker

Abstract

The embodiment of the application provides a primary and secondary depth fusion circuit breaker mechanism and a pole-mounted circuit breaker. The circuit breaker mechanism comprises a pole column, an insulation shell, a vacuum arc-extinguishing chamber, a line-in end, a mechanism box, an insulation pull rod, an operating coil, a moving iron core, a stationary iron core, a first sampling end, a second sampling end, a third sampling end, a fourth sampling end, and a control module. The vacuum arc-extinguishing chamber is fixed in the interior of the insulation shell, and the line-in end is arranged at the top of the vacuum arc-extinguishing chamber. The mechanism box comprises the box body, the insulation pull rod, the operating coil, the moving iron core and the stationary iron core. The operating coil is arranged between the moving iron core and the stationary iron core, and the opening spring is further arranged between the moving iron core and the stationary iron core. The top of the moving iron core is in contact with the insulation pull rod, and the top of the insulation pull rod is provided with a soft connection contact. The sampling module is provided with the first sampling end, the second sampling end, the third sampling end and the fourth sampling end. The first sampling end and the third sampling end are connected with the line-in end respectively, and the second sampling end and the fourth sampling end are connected with the line-out end. The control module controls the current direction of the operating coil. According to the above embodiment, the detection accuracy of the cable can be improved, and the response speed and efficiency of the opening and closing can be improved.

Description

Technical Field

[0001] This application relates to, but is not limited to, the technical field of cable circuit breaker mechanisms, and particularly to a primary and secondary deeply integrated circuit breaker mechanism and a pole-mounted circuit breaker. Background Technology

[0002] With the advancement of primary and secondary integration technology, outdoor pole-mounted vacuum circuit breakers have gradually shifted from incomplete integration of electromagnetic current transformers to deep integration of built-in capacitive or electronic current sensors. However, they still face problems such as large equipment size, low reliability of secondary components, high primary voltage of capacitors, insufficient accuracy and stability, and strong partial discharge at the break point.

[0003] The transmission mechanisms used in the equipment are usually spring-operated or permanent magnet mechanisms, which have problems such as high failure rate, slow response speed and short mechanical life, making it difficult to meet the needs of equipment development towards intelligence, miniaturization, low power consumption, small differential protection and maintenance-free. Summary of the Invention

[0004] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0005] This application provides a primary and secondary deeply integrated circuit breaker mechanism and a pole-mounted circuit breaker, which can improve the detection accuracy of cables and improve the response speed and efficiency of opening and closing.

[0006] To achieve the above objectives, a first aspect of this application proposes a primary and secondary deep-integration circuit breaker mechanism, comprising: a pole, including an insulating shell made of insulating material as the substrate, wherein a vacuum interrupter is solidly sealed inside the insulating shell, and an input terminal is provided at the top of the vacuum interrupter; a mechanism housing, including a housing body and an insulating pull rod, an operating coil, a stationary iron core, and a moving iron core disposed inside the housing body, wherein the stationary iron core and the moving iron core are both magnetically controlled shape memory alloys, a cavity is provided between the stationary iron core and the moving iron core, the operating coil is disposed in the cavity, a tripping spring is also disposed in the cavity, the top of the tripping spring contacts the moving iron core, the bottom of the tripping spring contacts the stationary iron core, the top of the moving iron core contacts the insulating pull rod, a flexible contact head is provided at the top of the insulating pull rod, and the moving iron core controls the insulating pull rod to rise or fall, thereby controlling the flexible contact head to contact the vacuum interrupter. The connection or disconnection between the bottom of the arc-extinguishing chamber and between the flexible contact head and the output terminal; a sampling module, equipped with a first sampling end, a second sampling end, a third sampling end and a fourth sampling end, the first sampling end being connected to the input terminal, the second sampling end being connected to the output terminal, the first sampling end being used to acquire current data from the input terminal, the second sampling end being used to acquire the current data from the output terminal, the third sampling end being connected to the input terminal, the fourth sampling end being connected to the output terminal, the third sampling end being used to acquire voltage data from the input terminal, and the fourth sampling end being used to acquire the voltage data from the output terminal; a control module, the operating coil and the sampling module being electrically connected to the control module respectively, the control module analyzing the current data and voltage data obtained by the sampling module, and controlling the current direction of the operating coil according to the current data.

[0007] In some embodiments, the system further includes an energy harvesting module electrically connected to the control module. The energy harvesting module is provided with a first energy harvesting terminal and a second energy harvesting terminal. The first energy harvesting terminal is connected to the input terminal, and the second energy harvesting terminal is connected to the output terminal. The first energy harvesting terminal is used to obtain electrical energy from the input terminal, and the second energy harvesting terminal is used to obtain electrical energy from the output terminal.

[0008] In some embodiments, the outgoing end is provided with an outgoing conductive rod that penetrates the insulating housing. One end of the outgoing conductive rod is used to contact the flexible connector, and the other end of the outgoing conductive rod is connected to an external cable.

[0009] In some embodiments, the sampling module further includes a current transformer, with the outgoing conductive rod passing through the middle of the current transformer.

[0010] In some embodiments, a closing / opening operating shaft is provided on the outside of the mechanism box. The closing / opening operating shaft is connected to the control module and is used to drive the control module to control the current direction of the operating coil.

[0011] In some embodiments, a remote connection module is further included, which is electrically connected to the control module and is used to drive the control module to control the current direction of the operating coil.

[0012] In some embodiments, a deployment / retraction operation shaft is also provided on the outside of the mechanism box. The deployment / retraction operation shaft is used to control the control module to operate in remote control mode or in local operation mode.

[0013] In some embodiments, a pointer shaft is also provided on the outside of the mechanism box, and the insulating pull rod extends to the outside of the mechanism box and is connected to the pointer shaft. The pointer shaft is used to indicate the closing and opening status of the primary and secondary deep fusion circuit breaker mechanism.

[0014] To achieve the above objectives, the second aspect of this application also proposes a pole-mounted circuit breaker, comprising a plurality of primary and secondary deeply integrated circuit breaker mechanisms as described in the first aspect, wherein the pole-mounted circuit breaker is used to connect to a three-phase circuit, and each of the primary and secondary deeply integrated circuit breaker mechanisms respectively performs opening and closing of one of the cables in the three-phase circuit.

[0015] In some embodiments, the primary and secondary deep integration circuit breaker mechanism includes a zero-sequence current transformer, which is disposed at the outgoing terminal.

[0016] According to the solution provided in the embodiments of this application, in the sampling module, a first sampling end and a second sampling end are simultaneously set. The first sampling end is connected to the input end and is used to collect current data from the input end. The second sampling end is connected to the output end and is used to collect current data from the output end. The sampling module transmits the current data from the input end and the output end to the control module. The control module simultaneously uses the current data from the input end and the output end to determine the status of the line where the primary and secondary deep fusion circuit breaker mechanism is located. When the current data from both the input end and the output end are normal, the control module controls the current in the preset direction of the operating coil in the mechanism box, thereby controlling the insulating pull rod to extend upward, thus... The two ends of the soft-contact probe are in contact with the bottom of the vacuum interrupter and the outgoing end, respectively, closing the circuit breaker mechanism. When an abnormality occurs in the current or voltage data at either the incoming or outgoing end, the control module changes the current direction of the operating coil, causing the insulating pull rod to retract downwards, and the circuit breaker mechanism opens. Therefore, by simultaneously acquiring the current data at both the incoming and outgoing ends, a more comprehensive understanding of the line's current status can be obtained, avoiding the omission of circuit faults. When a large error occurs between the current data at the incoming and outgoing ends, the control module can also promptly control the circuit to open, thereby ensuring the safety of the equipment connected to the line at both the incoming and outgoing ends.

[0017] Within the mechanism housing, when the operating coil is not energized, the atomic magnetic domains within the moving and stationary iron cores are disordered in their normal state. Macroscopically, neither the moving nor stationary iron cores exhibit magnetism. However, when the operating coil is energized, applying a specific magnetic field to the moving and stationary iron cores (made of magnetron shape memory alloy), the magnetic domains within both cores align with the magnetic field, macroscopically making them magnetic. Under the influence of magnetic attraction, the moving and stationary iron cores are attracted together, simultaneously actuating the insulating lever to close the circuit. When the control module applies a reverse current to the operating coil again, the magnetic domains of the moving and stationary iron cores return to their normal disordered arrangement, exhibiting no magnetism. Under the action of the tripping spring, the moving iron core and the stationary iron core change from being attracted to being separated, and at the same time drive the insulating pull rod to trip. By setting a cavity between the moving iron core and the stationary iron core, and installing the operating coil in the cavity, when a current in a preset direction is input to the operating coil, the magnetic field generated by the operating coil can completely cover the moving iron core and the stationary iron core, thereby effectively improving the response efficiency and displacement speed of the moving iron core. This allows the circuit breaker mechanism to perform tripping and closing operations in a timely manner based on current and voltage data, thereby improving the safety of the line.

[0018] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0019] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0020] Figure 1 A schematic diagram of an optional structure of a primary and secondary deep fusion circuit breaker mechanism provided in an embodiment of this application; Figure 2 This is a schematic diagram of an optional structure of the top of the pole post provided in an embodiment of this application; Figure 3 A schematic diagram of an optional structure of a primary and secondary deep fusion circuit breaker mechanism provided in an embodiment of this application; Figure 4 An optional system block diagram of a primary and secondary deep integration circuit breaker mechanism provided in the embodiments of this application; Figure 5 An optional connection diagram illustrating the connection between a remote connection module and a working device provided in an embodiment of this application; Figure 6 A schematic diagram of an optional sampling module provided in an embodiment of this application; Figure 7 This is a schematic diagram of an optional circuit for the energy harvesting module on the A-phase and C-phase input terminals provided in an embodiment of this application. Figure 8 This is an optional circuit diagram of the energy harvesting module on the A-phase and C-phase output terminals provided in an embodiment of this application. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0022] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "electrical connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0025] Currently, circuit breaker devices suffer from problems such as large size, low reliability of secondary components, high primary voltage of capacitors, insufficient accuracy and stability, and strong partial discharge at the break point. The transmission mechanisms used in these devices are typically spring-operated or permanent magnet mechanisms, which suffer from high failure rates, slow response speeds, and short mechanical lifespans, making it difficult to meet the demands for intelligent, miniaturized, low-power, low-gradient protection, and maintenance-free equipment development.

[0026] To address the issue of low reliability of secondary components, this application provides a deeply integrated primary and secondary circuit breaker mechanism and a pole-mounted circuit breaker. The deeply integrated primary and secondary circuit breaker mechanism includes: a pole, comprising an insulating shell made of insulating material, with a vacuum interrupter chamber sealed inside the insulating shell, and an input terminal at the top of the vacuum interrupter chamber; a mechanism housing, including a housing body and an insulating pull rod, an operating coil, and a magnetically controlled shape memory alloy disposed inside the housing body. The magnetically controlled shape memory alloy has a cavity inside, the operating coil is disposed within the cavity, and the top of the magnetically controlled shape memory alloy contacts the insulating pull rod. A flexible contact head is disposed at the top of the insulating pull rod. The magnetically controlled shape memory alloy controls the raising or lowering of the insulating pull rod to control the flexible contact head. The contact head is connected or disconnected from the bottom of the vacuum interrupter, and the flexible contact head is connected or disconnected from the output terminal; a sampling module is provided with a first sampling end and a second sampling end, the first sampling end is connected to the input terminal, and the second sampling end is connected to the output terminal. The first sampling end is used to obtain current data from the input terminal, and the second sampling end is used to obtain current data from the output terminal; a control module is provided, with the operating coil and the sampling module electrically connected to the control module respectively. The control module analyzes the current data obtained by the sampling module and controls the current direction of the operating coil according to the current data; the primary and secondary deep integration circuit breaker mechanism proposed in this application can improve the detection accuracy of cables and improve the response speed and efficiency of opening and closing.

[0027] The primary and secondary deep integration circuit breaker mechanism and pole-mounted circuit breaker provided in this application embodiment are specifically described through the following embodiments. First, the primary and secondary deep integration circuit breaker mechanism in this application embodiment is described.

[0028] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0029] Reference Figures 1 to 4 One embodiment of this application provides a primary and secondary deep integration circuit breaker mechanism, comprising: The pole post 100 includes an insulating shell 110 made of insulating material as the base material, a vacuum interrupter 120 is solidly sealed inside the insulating shell 110, and an inlet terminal 130 is provided on the top of the vacuum interrupter 120. The mechanism box 200 includes a box body and an insulating pull rod 210, an operating coil 220, a stationary iron core 232, and a moving iron core 231 disposed inside the box body. The stationary iron core 232 and the moving iron core 231 are both magnetically controlled shape memory alloys. A cavity is provided between the moving iron core 231 and the stationary iron core 232. The operating coil 220 is disposed inside the cavity. A tripping spring 260 is also disposed inside the cavity. The top of the tripping spring 260 contacts the moving iron core 231, and the bottom of the tripping spring 260 contacts the stationary iron core 232. The top of the moving iron core 231 contacts the insulating pull rod 210. A flexible contact head 240 is disposed on the top of the insulating pull rod 210. The moving iron core 231 controls the insulating pull rod 210 to rise or fall, thereby controlling the connection or disconnection between the flexible contact head 240 and the bottom of the vacuum interrupter 120, and between the flexible contact head 240 and the output terminal 250. The sampling module 300 is provided with a first sampling terminal 301, a second sampling terminal 302, a third sampling terminal 303, and a fourth sampling terminal 304. The first sampling terminal 301 is connected to the input terminal 130, and the second sampling terminal 302 is connected to the output terminal 250. The first sampling terminal 301 is used to obtain current data from the input terminal 130, and the second sampling terminal 302 is used to obtain current data from the output terminal 250. The third sampling terminal 303 is connected to the input terminal 133, and the fourth sampling terminal 304 is connected to the output terminal 250. The third sampling terminal 303 is used to obtain voltage data from the input terminal 133, and the fourth sampling terminal 304 is used to obtain voltage data from the output terminal 250. The control module 400, the operation coil 220 and the sampling module 300 are electrically connected to the control module 400. The control module 400 analyzes the current data and voltage data obtained by the sampling module 300 and controls the current direction of the operation coil 220 according to the current data.

[0030] Understandably, in the sampling module 300, by simultaneously setting a first sampling terminal 301 and a second sampling terminal 302, the first sampling terminal 301 is connected to the input terminal 130 to collect current data from the input terminal 130, and the second sampling terminal 302 is connected to the output terminal 250 to collect current data from the output terminal 250. The sampling module 300 transmits the current data from the input terminal 130 and the output terminal 250 to the control module 400. The control module 400 simultaneously uses the current data from the input terminal 130 and the output terminal 250 to determine the status of the circuit where the primary and secondary deep fusion circuit breaker mechanism is located. When the current data from both the input terminal 130 and the output terminal 250 are normal, the control module 400 controls the operating coil 220 in the mechanism box 200 to pass a preset current in the first direction, causing the moving iron core 231 and the stationary iron core 232 to engage, so that the two ends of the soft contact probe are respectively connected to the true contact probe. When the bottom of the arc-extinguishing chamber 120 contacts the output terminal 250, the circuit breaker mechanism closes. When an abnormality occurs in the current data at either the input terminal 130 or the output terminal 250, the control module 400 changes the current direction of the operating coil 220, causing the operating coil 220 to carry current in a second direction. Under the elastic force of the tripping spring 260, the moving iron core 231 separates from the stationary iron core 232, and the circuit breaker mechanism trips. Therefore, by simultaneously acquiring the current and voltage data of the input terminal 130 and the output terminal 250, a more comprehensive understanding of the circuit status can be obtained, and circuit faults can be avoided. When a large error occurs between the current and voltage data of the input terminal 130 and the output terminal 250, the control module 400 can also promptly control the tripping, thereby ensuring the safety of the equipment connected to the line at the input terminal 130 and the line at the output terminal 250.

[0031] In the mechanism housing 200, when the operating coil 220 is not energized, the atomic magnetic domains inside the moving iron core 231 and stationary iron core 232 are disordered in their normal state. Macroscopically, neither the moving iron core 231 nor the stationary iron core 232 exhibits magnetism. However, when the operating coil 220 is energized, a specific magnetic field is applied to the moving iron core 231 and stationary iron core 232, which are made of magnetically controlled shape memory alloy. The magnetic domains of the atoms inside the moving iron core 231 and stationary iron core 232 align with the direction of the magnetic field, and macroscopically, the moving iron core 231 and stationary iron core 232 become magnetic. Under the action of magnetic attraction, the moving iron core 231 and stationary iron core 232 are attracted together, simultaneously driving the insulating pull rod 210 to perform the closing action. When the control module 400 applies a reverse current to the operating coil 220 again, the magnetic domains of the moving iron core 231 and stationary iron core 232 return to their normal disordered arrangement, exhibiting no magnetism. Under the action of the tripping spring 260, the moving iron core 231 and the stationary iron core 232 change from being attracted to being separated, and at the same time drive the insulating pull rod 210 to trip. By setting a cavity between the moving iron core 231 and the stationary iron core 232, and installing the operating coil 220 in the cavity, when a current in a preset direction is input to the operating coil 220, the magnetic field generated by the operating coil 220 can completely cover the moving iron core 231 and the stationary iron core 232, thereby effectively improving the response efficiency and displacement speed of the moving iron core 231, so that the circuit breaker mechanism can perform tripping and closing operations in a timely manner according to the current data and voltage data, thereby improving the safety of the line.

[0032] In one specific embodiment, the sampling module 300 includes an input sampling capacitor, an output sampling capacitor, and two sets of sampling rectification and voltage regulation circuits. Both the input and output sampling capacitors are mounted on the top of the terminal 100. One side of the input sampling capacitor is connected to the input terminal 130, and the other side is connected to one of the sampling rectification and voltage regulation circuits. One side of the output sampling capacitor is connected to the output terminal 250, and the other side is connected to the other sampling rectification and voltage regulation circuit. The sampling rectification and voltage regulation circuits are connected to the control module 400 and output rectified and regulated current data to the control module 400.

[0033] exist Figure 6 In the circuit, alternating current flows through the external cable U1. The sampling, rectification, and voltage regulation circuit includes a transformer T1, a rectifier D1, and a protective resistor R1. The primary coil of the transformer T1 is connected to a capacitor C1. The current on the side of the capacitor C1 connected to the external cable U1 changes with the external cable U1, and the current on the side of the capacitor C1 connected to the primary coil changes accordingly. The transformer T1 isolates the circuits containing the primary and secondary coils. Based on the current change in the primary coil, the transformer T1 induces a corresponding current in the secondary coil. The secondary coil is connected to the rectifier D1, which outputs direct current, which is then input to the control module 400 through the protective resistor R1.

[0034] Additionally, refer to Figure 2and Figure 6 As shown, in one embodiment of this application, the primary and secondary deep fusion circuit breaker mechanism further includes an energy harvesting module 500. The energy harvesting module 500 is electrically connected to the control module 400. The energy harvesting module 500 is provided with a first energy harvesting end 501 and a second energy harvesting end 502. The first energy harvesting end 501 is connected to the input end 130, and the second energy harvesting end 502 is connected to the output end 250. The first energy harvesting end 501 is used to obtain electrical energy from the input end 130, and the second energy harvesting end 502 is used to obtain electrical energy from the output end 250.

[0035] The specific structure of the power harvesting module 500 is similar to that of the sampling module 300. The power harvesting module 500 includes an input power harvesting capacitor, an output power harvesting capacitor, and two sets of power harvesting rectifier and voltage regulator circuits. Both the input power harvesting capacitor and the output power harvesting capacitor are installed on the top of the terminal 100. One side of the input power harvesting capacitor is connected to the input terminal 130, and the other side is connected to one of the power harvesting rectifier and voltage regulator circuits. One side of the output power harvesting capacitor is connected to the output terminal 250, and the other side is connected to another power harvesting rectifier and voltage regulator circuit. The power harvesting rectifier and voltage regulator circuits are connected to the control module 400 to supply power to the control module 400.

[0036] It is understandable that in a single primary and secondary deeply integrated circuit breaker mechanism, by simultaneously setting a first energy extraction terminal 501 and a second energy extraction terminal 502, the first energy extraction terminal 501 and the second energy extraction terminal 502 obtain electrical energy from the input terminal 130 and the output terminal 250, respectively. In this way, the energy extraction power of the first energy extraction terminal 501 and the second energy extraction terminal 502, i.e. the input energy extraction capacitor and the output energy extraction capacitor, can be only half of the rated power of the control module 400. Compared with setting energy extraction ports only at the input terminal 130 and the output terminal 250, it can effectively reduce the energy extraction power required by the first energy extraction terminal 501 and the second energy extraction terminal 502, and improve the safety of the energy extraction module 500. When the circuit breaker mechanism is tripped, the control module 400 can still obtain electrical energy through the first energy extraction terminal 501.

[0037] Additionally, refer to again Figure 1 As shown, in one embodiment of this application, the output terminal 250 is provided with an output conductive rod 251, which penetrates the insulating housing 110. One end of the output conductive rod 251 is used to contact the flexible contact head 240, and the other end of the output conductive rod 251 is connected to an external cable.

[0038] The outgoing conductive rod 251 is fixed on the insulating housing 110. When the circuit breaker mechanism closes, the insulating pull rod 210 drives the flexible contact head 240 to extend upward, and the flexible contact head 240 just contacts the outgoing conductive rod 251. When the circuit breaker mechanism opens, the flexible contact head 240 retracts downward and separates from the outgoing conductive rod 251. By setting the outgoing conductive rod 251 at the outgoing end 250 of the circuit breaker mechanism, the contact area between the flexible contact head 240 and the external cable can be increased, providing a more stable and reliable electrical connection, enhancing the mechanical strength of the outgoing end 250, ensuring that the current is smoothly transmitted from the incoming end 130 to the outgoing end 250, and improving the stability of the circuit breaker mechanism. In addition, since the cross-sectional area of ​​the outgoing conductive rod 251 is larger than that of ordinary cables, the outgoing conductive rod 251 can also reduce the resistance of the outgoing end 250, reduce the heat generation of the outgoing end 250, and improve the power output efficiency of the outgoing end 250.

[0039] In one specific embodiment, the sampling module 300 further includes a current transformer 310, with the outgoing conductive rod 251 passing through the middle of the current transformer 310. The current transformer 310 is also electrically connected to the control module 400. When the insulating pull rod 210 extends upward, the inlet end 130 and the outlet end 250 are connected. The current transformer 310 can sense the current flowing through the outgoing conductive rod 251 and provide data support for the control module 400.

[0040] In addition, according to actual needs, the primary and secondary deep integration circuit breaker mechanism proposed in this application may also be equipped with a voltage sensor, which is connected to the third sampling terminal 303 and the fourth sampling terminal 304 respectively, and the voltage sensor is electrically connected to the control module 400.

[0041] Additionally, refer to Figure 3 As shown, a closing / opening operation shaft 410 is provided on the outside of the mechanism box 200. The closing / opening operation shaft 410 is connected to the control module 400. The closing / opening operation shaft 410 is used to drive the control module 400 to control the current direction of the operation coil 220.

[0042] Specifically, the closing / opening operating shaft 410 is equipped with a closing end and an opening end. When the closing / opening operating shaft 410 is controlled to point to the closing end, the control module 400 controls the current direction of the operating coil 220 based on the current data obtained by the sampling module 300. When the current data of the input end 130 and the output end 250 are both normal, the control module 400 controls the current in the first direction flowing through the operating coil 220 in the mechanism box 200, so that the two ends of the soft contact probe contact the bottom of the vacuum interrupter 120 and the output end 250 respectively, the circuit breaker mechanism closes, and the input end 130 and the output end 250 are connected. When the current data or voltage data at any position of the input end 130 or the output end 250 is abnormal, the control module... 400 causes the operating coil 220 to be connected to the circuit in the second direction, the circuit breaker mechanism to open, and the connection between the input terminal 130 and the output terminal 250 is broken; when the control closing / opening operating shaft 410 is pointed to the opening terminal, the control module 400 will force the operating coil 220 to be connected to the current in the second direction, the insulating pull rod 210 and the flexible contact head 240 will retract downwards, the circuit breaker mechanism will open, until the closing / opening operating shaft 410 is pointed to the closing terminal again; therefore, when the staff needs to perform maintenance and repair on the circuit breaker mechanism, the staff can point the closing / opening operating shaft 410 to the opening terminal to force the circuit breaker mechanism to open, and when the staff has completed the maintenance, they can point the closing / opening operating shaft 410 to the closing terminal, thereby restoring the circuit breaker mechanism to normal operation.

[0043] In addition, such as Figure 4 and Figure 5 As shown, in some embodiments of this application, a remote connection module 600 is also included. The remote connection module 600 is electrically connected to the control module 400 and is used to drive the control module 400 to control the current direction of the operating coil 220.

[0044] Staff can communicate with the control module 400 via the remote connection module 600 using their portable work equipment, and remotely control the opening and closing of the circuit breaker mechanism through the work equipment.

[0045] In addition, an engagement / disengagement operation shaft 420 is provided on the outside of the mechanism box 200. The engagement / disengagement operation shaft 420 is used to control the control module 400 to operate in remote control mode or in local operation mode.

[0046] Specifically, the engagement / disengagement operation shaft 420 is equipped with a local end and a remote end. When the engagement / disengagement operation shaft 420 is pointed to the local end, the control module 400 closes the remote connection module 600. At this time, external personnel cannot remotely control the circuit breaker mechanism through the remote connection. When the engagement / disengagement operation shaft 420 is pointed to the remote end, the control module 400 activates the remote connection module 600. After the staff has been authenticated by the administrator, they can remotely control the opening and closing of the circuit breaker mechanism through the corresponding remote operation program using their own work equipment.

[0047] In addition, a pointer shaft 430 is provided on the outside of the mechanism box 200. The insulating pull rod 210 extends to the outside of the mechanism box 200 and is connected to the pointer shaft 430. The pointer shaft 430 is used to indicate the opening and closing status of the primary and secondary deep fusion circuit breaker mechanism.

[0048] The pointer shaft 430 is equipped with a closing end and a closing end. When the insulating pull rod 210 is driven upward by the operating coil 220 and the moving iron core 231, the pointer shaft 430 is driven to point to the closing end. When the insulating pull rod 210 is retracted downward, the pointer shaft 430 is driven to point to the closing end. Therefore, the operator can observe the opening and closing status inside the mechanism box 200 by directly observing the pointer shaft 430 on the outside of the mechanism box 200, thus avoiding electric shock when closing.

[0049] In addition, such as Figure 3 As shown, this application also proposes a pole-mounted circuit breaker, including multiple primary and secondary deeply integrated circuit breaker mechanisms as described in the above embodiments. The pole-mounted circuit breaker is used to connect to a three-phase circuit, and each primary and secondary deeply integrated circuit breaker mechanism respectively performs opening and closing of one of the cables in the three-phase circuit.

[0050] It is understandable that in a pole-mounted circuit breaker, each primary and secondary deeply integrated circuit breaker mechanism can share a mechanism box 200 and be connected to the same control module 400. The control module 400 of the pole-mounted circuit breaker simultaneously connects to and controls each operating coil 220. When the data obtained by the sampling module 300 of one of the primary and secondary deeply integrated circuit breaker mechanisms is abnormal, the control module 400 controls all circuit breaker mechanisms to open and disconnect the three-phase circuit in a timely manner.

[0051] Additionally, refer to again Figure 1 The pole-mounted circuit breaker is also equipped with a zero-sequence current transformer 320. The induction coils of the zero-sequence current transformer 320 are respectively set on the outgoing conductive rods 251 of the circuit breaker mechanism on the cables of the three phases. The control module 400 obtains the zero-sequence current data of the three-phase circuit through the zero-sequence current transformer 320. When the zero-sequence current data is abnormal, the control module 400 controls the circuit breaker mechanism on the three phases to open simultaneously, thereby ensuring the safety of the three-phase circuit.

[0052] In one specific implementation, such as Figure 7 and Figure 8As shown, the control module 400 of the pole-mounted circuit breaker uses four power sources: A-phase incoming line, A-phase outgoing line, C-phase incoming line, and C-phase outgoing line. The A-phase incoming power source capacitor CAJ is connected to one side of the incoming line protection resistor RJ through its first power source transformer TAJ and first power source rectifier DAJ. The C-phase incoming power source capacitor CCJ is also connected to the same side of the same incoming line protection resistor RJ through its second power source transformer TCJ and second power source rectifier DCJ. The other side of the incoming line protection resistor RJ is connected to the control module 400. The A-phase outgoing power source capacitor CAC is connected to one side of the outgoing line protection resistor RC through its third power source transformer TAC and third power source rectifier DAC. The C-phase outgoing power source capacitor CCC is also connected to the same side of the same outgoing line protection resistor RC through its fourth power source transformer TCC and fourth power source rectifier DCC. The other side of the outgoing line protection resistor RC is connected to the control module 400. The B-phase power source module 500 does not participate in power source extraction.

[0053] exist Figure 8 In the circuit, at the outgoing terminals 250 of phases A and C, the left side of the outgoing capacitor CAC on phase A (i.e., the side connected to the outgoing cable UA2 of phase A) is connected to the left side of the outgoing capacitor CCC on phase C (i.e., the side connected to the outgoing cable UC2 of phase C). It is understood that during the closing operation, the current and voltage of the external cables at outgoing terminals 250 surge, which can easily damage the outgoing capacitors. Due to the phase difference between phase A and phase C lines, after the closing operation, the outgoing cables UA2 of phase A and UC2 of phase C... Since UC2 will not reach its current peak simultaneously, at the output terminal 250, by connecting the left side of the output capacitor CAC on phase A to the left side of the output capacitor CCC on phase C, the left sides of the output capacitors CAC and CCC on phase A and phase C can be effectively buffered, reducing the voltage spikes of the output capacitors CAC and CCC on phase A and phase C when they are closed, thereby effectively protecting the output capacitors CAC and CCC on phase A and phase C.

[0054] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0055] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0056] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as firmware, hardware, and appropriate combinations thereof.

[0057] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0058] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0059] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0060] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0061] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0062] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A primary and secondary deep integration circuit breaker mechanism, characterized in that, include: The pole includes an insulating shell made of insulating material as the base material, and a vacuum interrupter is solidified inside the insulating shell. The top of the vacuum interrupter is provided with an inlet terminal. The mechanism box includes a box body and an insulating pull rod, an operating coil, a stationary iron core, and a moving iron core disposed inside the box body. The stationary iron core and the moving iron core are both magnetically controlled shape memory alloys. A cavity is provided between the stationary iron core and the moving iron core. The operating coil is disposed in the cavity. A tripping spring is also disposed in the cavity. The top of the tripping spring contacts the moving iron core, the bottom of the tripping spring contacts the stationary iron core, and the top of the moving iron core contacts the insulating pull rod. A flexible contact head is provided on the top of the insulating pull rod. The moving iron core controls the insulating pull rod to rise or fall, thereby controlling the connection or disconnection between the flexible contact head and the bottom of the vacuum interrupter, and between the flexible contact head and the output terminal. The sampling module is provided with a first sampling terminal, a second sampling terminal, a third sampling terminal, and a fourth sampling terminal. The first sampling terminal is connected to the input terminal, and the second sampling terminal is connected to the output terminal. The first sampling terminal is used to acquire current data from the input terminal, and the second sampling terminal is used to acquire the current data from the output terminal. The third sampling terminal is connected to the input terminal, and the fourth sampling terminal is connected to the output terminal. The third sampling terminal is used to acquire voltage data from the input terminal, and the fourth sampling terminal is used to acquire the voltage data from the output terminal. The control module is electrically connected to the operating coil and the sampling module respectively. The control module analyzes the current data and voltage data obtained by the sampling module and controls the current direction of the operating coil according to the current data. The energy harvesting module is electrically connected to the control module. The energy harvesting module is provided with a first energy harvesting end and a second energy harvesting end. The first energy harvesting end is connected to the input end, and the second energy harvesting end is connected to the output end. The first energy harvesting end is used to obtain electrical energy from the input end, and the second energy harvesting end is used to obtain electrical energy from the output end.

2. The primary and secondary deep integration circuit breaker mechanism according to claim 1, characterized in that, The outlet end is provided with an outlet conductive rod, which penetrates the insulating shell. One end of the outlet conductive rod is used to contact the flexible connector, and the other end of the outlet conductive rod is connected to an external cable.

3. The primary and secondary deep integration circuit breaker mechanism according to claim 2, characterized in that, The sampling module also includes a current transformer, and the outgoing conductive rod passes through the middle of the current transformer.

4. The primary and secondary deep integration circuit breaker mechanism according to claim 1, characterized in that, A closing / opening operating shaft is provided on the outside of the mechanism box. The closing / opening operating shaft is connected to the control module and is used to drive the control module to control the current direction of the operating coil.

5. The primary and secondary deep integration circuit breaker mechanism according to claim 4, characterized in that, It also includes a remote connection module, which is electrically connected to the control module and is used to drive the control module to control the current direction of the operating coil.

6. The primary and secondary deep integration circuit breaker mechanism according to claim 5, characterized in that, An engagement / retraction operation shaft is also provided on the outside of the mechanism box. The engagement / retraction operation shaft is used to control the control module to operate in remote control mode or local operation mode.

7. The primary and secondary deep integration circuit breaker mechanism according to claim 1, characterized in that, A pointer shaft is also provided on the outside of the mechanism box. The insulating pull rod is connected to the pointer shaft, and the pointer shaft is used to indicate the closing and opening status of the primary and secondary deep fusion circuit breaker mechanism.

8. A pole-mounted circuit breaker, characterized in that, The device includes multiple primary and secondary deep-integrated circuit breaker mechanisms as described in any one of claims 1 to 7, wherein the pole-mounted circuit breaker is used to connect to a three-phase circuit, and each of the primary and secondary deep-integrated circuit breaker mechanisms respectively performs opening and closing of one of the cables in the three-phase circuit.

9. The pole-mounted circuit breaker according to claim 8, characterized in that, The primary and secondary deep integration circuit breaker mechanism includes a zero-sequence current transformer, which is located at the outgoing end.

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