Intelligent high-voltage disconnector

Abstract

This utility model relates to the field of high-voltage disconnecting switch technology and discloses an intelligent high-voltage disconnecting switch, including a base with at least four post insulators, two post insulators forming a group and symmetrically arranged on the base; in a group of post insulators: one post insulator is provided with a terminal block, and the other post insulator is provided with a support base, on which a smartly rotatable switch is provided; a telescopic insulating plate is provided on the base, the top of the telescopic insulating plate being movably connected to the bottom of the switch; commands are sent through a remote control device, which drives the motor to run via a signal transmission receiver, and the meshing transmission of the worm gear and worm wheel achieves precise control of the opening and closing of the switch; a limit switch monitors the rotation angle of the shaft in real time and triggers a power-off protection mechanism to avoid overshoot or undershoot, ensuring that the switch accurately reaches the preset position, which not only improves operating efficiency but also enhances the safety protection performance of the equipment through precise position control.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage disconnect switches, specifically to intelligent high-voltage disconnect switches. Background Technology

[0002] In power systems, high-voltage disconnect switches are key equipment, undertaking the core functions of high-voltage circuit isolation, switching operations, and maintenance safety protection. Especially in substations, power grid hubs, and other scenarios, reliable switching operations are required to achieve power isolation and circuit switching, ensuring the safety of maintenance personnel and the stable operation of equipment. Therefore, strict requirements are placed on the ease of operation, control precision, and safety protection of the equipment.

[0003] In existing technologies, traditional high-voltage disconnect switches mostly adopt manual operation or basic electric drive mode, which has three major defects: First, the operation depends on on-site manual intervention and lacks remote intelligent control capabilities. In complex power grid environments or high-altitude operation scenarios, the operation efficiency is low and there is a risk of electric shock to personnel. Second, the transmission mechanism is poorly designed and the stroke control has no protection mechanism, resulting in large deviations in the opening and closing angle of the switch, which can easily cause arcing faults or poor contact due to overshoot or undershoot. Third, there is a lack of real-time current status monitoring function, which makes it impossible to realize remote diagnosis of operating status and fault early warning. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide an intelligent high-voltage disconnecting switch to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an intelligent high-voltage disconnect switch, including a base, on which at least four post insulators are provided, wherein two post insulators are arranged as a group and symmetrically on the base;

[0006] In a set of post insulators: a terminal block is provided on one post insulator, a support base is provided on another post insulator, a switch that can be intelligently rotated is provided on the support base, and a telescopic insulating plate is provided on the base, with the top of the telescopic insulating plate being movably connected to the bottom of the switch.

[0007] When the switch contacts the terminal block, a conductive path is formed to conduct the circuit current, and at this time the telescopic insulating plate is in a retracted state;

[0008] When the switch is separated from the terminal block, a clearly visible physical disconnection point is formed to isolate the power supply, at which point the telescopic insulating plate is in an extended state.

[0009] Preferably, the support base is provided with an intelligent opening and closing component, the intelligent opening and closing component includes an insulating cover embedded in the support base, an inspection door is rotatably provided on the insulating cover, an installation plate is provided in the insulating cover, a rotating shaft is rotatably provided in the installation plate, and the end of the rotating shaft away from the installation plate is fixedly connected to the knife switch.

[0010] Preferably, the intelligent opening and closing component includes a rotating shaft disposed in the mounting plate, the rotating shaft being located at the connection between the rotating shaft and the mounting plate, thereby improving the continuity and stability of the opening and closing action of the switch.

[0011] Preferably, the intelligent opening and closing component includes a mounting base disposed in an insulating cover, a drive motor is embedded in the mounting base, and the output shaft of the drive motor is connected to a worm gear via a coupling;

[0012] A worm gear is provided on the outside of the rotating shaft, and the worm gear meshes with the worm.

[0013] Preferably, a connecting frame is provided on the outside of the mounting plate, and the worm gear is rotatably connected to the connecting frame to ensure the radial stability of the worm gear during rotation;

[0014] Preferably, the mounting base is embedded with a signal transmission receiver that is wirelessly or wiredly connected to the remote control device, and the mounting base is also provided with a limit switch electrically connected to the signal transmission receiver;

[0015] The signal output terminal of the limit switch is connected to the control circuit of the drive motor to control the drive stroke of the drive motor.

[0016] Preferably, the switch is integrated with a high-voltage ammeter, which is connected to a signal transmission receiver via a data bus to realize real-time monitoring and remote transmission of current values.

[0017] In summary, the present invention has the following main advantages:

[0018] 1. This utility model sends commands through a remote control device, which drive the motor to run via a signal transmission receiver. Combined with the meshing transmission of the worm gear and worm wheel, it achieves precise control of the opening and closing of the switch. A limit switch monitors the rotation angle of the shaft in real time, triggering a power-off protection mechanism to prevent overshoot or undershoot, ensuring the switch accurately reaches the preset position. This collaborative design of remote intelligent control and precise transmission not only improves operational efficiency but also enhances the safety performance of the equipment through precise position control, effectively preventing arcing faults or accidental contact risks caused by misoperation, forming a complete safety protection chain of remote command - mechanical transmission - limit protection.

[0019] 2. The telescopic insulating plate in this utility model automatically adjusts according to the opening and closing state of the switch: it retracts to reduce space occupation when in contact and extends to form a clear physical break point and enhance the insulation isolation effect when separated; at the same time, the high-voltage ammeter integrated into the switch collects current data in real time and feeds it back to the remote control equipment through the data bus to realize remote monitoring and diagnosis of the operating status; the coordinated design of the telescopic insulating plate and the physical break point, combined with current status monitoring, not only optimizes the equipment space layout, but also improves the transparency and maintainability of the operating status through the dual mechanism of physical isolation and electrical monitoring, ensuring that the equipment has reliable safety isolation capability while operating efficiently, forming a space optimization-status monitoring-safety isolation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0023] Figure 4 This is a partial disassembly diagram of the present invention;

[0024] Figure 5 This is a partial disassembly diagram of the intelligent opening and closing component in this utility model.

[0025] In the diagram: 1. Base; 11. Telescopic insulating plate; 2. Post insulator; 21. Terminal block; 22. Support base; 31. Knife switch; 311. High voltage ammeter; 4. Intelligent opening and closing assembly; 41. Insulating cover; 411. Inspection door; 42. Mounting plate; 421. Shaft; 422. Bearing; 43. Connecting frame; 44. Worm gear; 45. Mounting base; 451. Signal transmission receiver; 452. Limit switch; 46. Drive motor; 461. Worm gear. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] Example

[0029] Please see Figures 1-5This utility model provides a technical solution: an intelligent high-voltage disconnect switch, including a base 1, on which at least four post insulators 2 are provided, wherein two post insulators 2 are arranged in a group and symmetrically arranged on the base 1; the symmetrical distribution of the post insulators 2 forms a stable support frame, which enhances the overall seismic performance of the equipment and the electrical insulation reliability under high voltage environment, and ensures the stability of the foundation structure;

[0030] In a set of post insulators 2: one post insulator 2 is equipped with a terminal block 21, and the other post insulator 2 is equipped with a support base 22. The support base 22 is equipped with a smart rotating switch 31. The base 1 is equipped with a telescopic insulating plate 11, and the top of the telescopic insulating plate 11 is movably connected to the bottom of the switch 31. The terminal block 21 and the support base 22 have clear division of labor, respectively undertaking the functions of conduction and support. The movable connection design of the telescopic insulating plate 11 realizes the space self-adaptation of the opening and closing state, reduces the equipment volume occupation, and maintains electrical isolation continuity.

[0031] When the switch 31 contacts the terminal block 21, a conductive path is formed to conduct the circuit current. At this time, the telescopic insulating plate 11 is in a retracted state. The retracted state of the telescopic insulating plate 11 reduces the risk of interference to the surrounding space, ensures the compact layout and operational safety of the equipment during conduction, and avoids accidental collisions that may cause failure.

[0032] When the switch 31 is separated from the terminal block 21, a clearly visible physical disconnection point is formed to isolate the power supply. At this time, the telescopic insulating plate 11 is in an extended state. The extension of the telescopic insulating plate 11 forms a clear physical isolation barrier, which enhances the insulation protection effect in the high voltage environment, prevents accidental electric shock or arc leakage, and improves the level of operational safety.

[0033] Furthermore, the support base 22 is equipped with an intelligent opening and closing component 4, which includes an insulating cover 41 embedded in the support base 22. An inspection door 411 is rotatably mounted on the insulating cover 41. An installation plate 42 is installed in the insulating cover 41, and a rotating shaft 421 is rotatably mounted in the installation plate 42. The end of the rotating shaft 421 away from the installation plate 42 is fixedly connected to the switch 31. The insulating cover 41 is embedded to form an internal component protection structure, and the inspection door 411 facilitates maintenance and repair. The fixed connection between the rotating shaft 421 and the switch 31 ensures direct power transmission, reduces transmission loss, and improves operational reliability.

[0034] Furthermore, the intelligent opening and closing component 4 includes a bearing 422 disposed in the mounting plate 42. The bearing 422 is located at the connection between the rotating shaft 421 and the mounting plate 42, which improves the continuity and stability of the opening and closing action of the switch 31. The bearing 422 is used at the connection of the rotating shaft 421 to reduce frictional resistance, improve the smoothness and positioning accuracy of the opening and closing action, reduce mechanical wear, and extend the service life of the equipment.

[0035] Furthermore, the intelligent opening and closing component 4 includes a mounting base 45 disposed in the insulating cover 41, a drive motor 46 embedded in the mounting base 45, and a worm gear 461 connected to the output shaft of the drive motor 46 via a coupling; a worm wheel 44 is disposed on the outside of the rotating shaft 421, and the worm wheel 44 meshes with the worm gear 461; the drive motor 46 achieves speed reduction and torque increase through the meshing of the worm gear 461 and the worm wheel 44, precisely controlling the opening and closing angle and speed of the switch 31; preventing external forces from causing the switch 31 to rotate unexpectedly, and ensuring operational stability;

[0036] Furthermore, a connecting frame 43 is provided on the outside of the mounting plate 42, and the worm gear 461 is rotatably connected to the connecting frame 43 to ensure the radial stability of the worm gear 461 when rotating; the connecting frame 43 provides radial support for the worm gear 461, reduces rotational vibration and sway, improves transmission efficiency and equipment operation stability, and reduces operating noise;

[0037] Furthermore, the mounting base 45 is embedded with a signal transmission receiver 451 that is wirelessly or wiredly connected to the remote control device. The mounting base 45 is also equipped with a limit switch 452 that is electrically connected to the signal transmission receiver 451. The signal output terminal of the limit switch 452 is connected to the control circuit of the drive motor 46 to control the drive stroke of the drive motor 46. The signal transmission receiver 451 realizes accurate reception and transmission of remote commands. The limit switch 452 triggers power-off protection by monitoring the position of the rotating shaft 421, accurately controlling the stroke of the drive motor 46 to avoid overshoot or undershoot, and ensuring that the switch 31 stops accurately.

[0038] Furthermore, a high-voltage ammeter 311 is integrated on the switch 31. The high-voltage ammeter 311 is connected to the signal transmission receiver 451 via a data bus to realize real-time monitoring and remote transmission of current values. The high-voltage ammeter 311 integrated into the switch 31 enables real-time current acquisition and remote transmission, supports remote monitoring of operating status and fault early warning, and improves equipment maintainability and intelligent operation and maintenance level.

[0039] The working process of the intelligent high-voltage disconnect switch: The remote control device connects to the signal transmission receiver 451 of the mounting base 45 via wireless / wired signal and sends the opening and closing command of the switch 31; the signal transmission receiver 451 transmits the command to the drive motor 46, and the output shaft of the drive motor 46 drives the worm gear 461 to rotate through the coupling. The worm gear 461 meshes with the worm wheel 44 outside the rotating shaft 421 to drive the rotating shaft 421 to rotate in the mounting plate 42, thereby driving the switch 31 to rotate around the support base 22;

[0040] When the switch 31 contacts the terminal block 21, a conductive path is formed to conduct the circuit current. At this time, the telescopic insulating plate 11 on the base 1 is in a contracted state due to the pressure of the switch 31, reducing space occupation. When the switch 31 separates from the terminal block 21, a clearly visible physical disconnection point is formed to isolate the power supply. The telescopic insulating plate 11 extends to a vertical state at the same time to enhance the insulation isolation effect and prevent accidental electric shock.

[0041] Limit switch 452 monitors the rotation angle of shaft 421 in real time. When the switch 31 reaches the preset opening and closing position, it triggers power-off protection and precisely controls the stroke of drive motor 46 to avoid overshoot or undershoot. During maintenance, the maintenance door 411 on the insulating cover 41 can be opened to maintain the internal structure of the intelligent opening and closing component 4. The bearing 422 at the connection between the mounting plate 42 and the shaft 421 ensures that the opening and closing action is smooth and continuous.

[0042] The high-voltage ammeter 311 integrated on the switch 31 collects the current value in real time, transmits it to the signal transmission receiver 451 through the data bus, and finally feeds it back to the remote control equipment to realize remote monitoring and diagnosis of the operating status.

[0043] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An intelligent high-voltage disconnect switch, comprising a base (1), characterized in that: At least four post insulators (2) are provided on the base (1), wherein two post insulators (2) are arranged in a group and symmetrically on the base (1); In a set of post insulators (2): a terminal block (21) is provided on one post insulator (2), a support base (22) is provided on another post insulator (2), a smart rotatable switch (31) is provided on the support base (22), and a telescopic insulating plate (11) is provided on the base (1). The top of the telescopic insulating plate (11) is movably connected to the bottom of the switch (31). When the switch (31) contacts the terminal block (21), a conductive path is formed to conduct the circuit current. At this time, the telescopic insulating plate (11) is in a retracted state. When the switch (31) is separated from the terminal block (21), a clearly visible physical disconnection point is formed to isolate the power supply, at which time the telescopic insulating plate (11) is in an extended state.

2. The intelligent high-voltage disconnector according to claim 1, characterized in that: The support base (22) is provided with an intelligent opening and closing component (4). The intelligent opening and closing component (4) includes an insulating cover (41) embedded in the support base (22). An inspection door (411) is rotatably provided on the insulating cover (41). An installation plate (42) is provided in the insulating cover (41). A rotating shaft (421) is rotatably provided in the installation plate (42). The end of the rotating shaft (421) away from the installation plate (42) is fixedly connected to the knife switch (31).

3. The intelligent high-voltage disconnector according to claim 2, characterized in that: The intelligent opening and closing component (4) includes a rotating shaft (421) disposed in the mounting plate (42). The rotating shaft (421) is located at the connection between the rotating shaft (421) and the mounting plate (42), thereby improving the continuity and stability of the opening and closing action of the switch (31).

4. The intelligent high-voltage disconnector according to claim 2, characterized in that: The intelligent opening and closing component (4) includes a mounting base (45) disposed in an insulating cover (41), a drive motor (46) is embedded in the mounting base (45), and the output shaft of the drive motor (46) is connected to a worm gear (461) via a coupling. A worm gear (44) is provided on the outside of the rotating shaft (421), and the worm gear (44) meshes with the worm (461).

5. The intelligent high-voltage disconnect switch according to claim 4, characterized in that: The mounting plate (42) is provided with a connecting frame (43) on the outside. The worm (461) is rotatably connected to the connecting frame (43) to ensure the radial stability of the worm (461) when it rotates.

6. The intelligent high-voltage disconnector according to claim 4, characterized in that: The mounting base (45) is equipped with a signal transmission receiver (451) that is wirelessly or wiredly connected to the remote control device. The mounting base (45) is also equipped with a limit switch (452) that is electrically connected to the signal transmission receiver (451). The signal output terminal of the limit switch (452) is connected to the control circuit of the drive motor (46) to control the drive stroke of the drive motor (46).

7. The intelligent high-voltage disconnector according to claim 6, characterized in that: The switch (31) integrates a high-voltage ammeter (311), which is connected to the signal transmission receiver (451) via a data bus to realize real-time monitoring and remote transmission of current values.

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