A full-insulation high-voltage disconnector with current monitoring

Abstract

The application belongs to the technical field of disconnectors, and discloses a full-insulation high-voltage disconnector with current monitoring, which comprises a steel tank and a blade assembly installed on the steel tank. The high-voltage circuit is connected to the incoming line terminal and the outgoing line terminal on the two closed insulation supports. When the high-voltage circuit needs to be turned on or cut off, the closed isolation pull ring slides the push-pull rod along the closed copper bar arc through the driving mechanism, so as to lock the closed copper bar and the closed insulation support. In this process, the clamping force of the copper contact of the support will continuously decay and the closed copper bar will loosen due to the combined action of mechanical friction, arc ablation and material fatigue and other factors in the long-term operation process. The problem of poor conduction caused by the corrosion of the long-term exposed copper bar can be prevented, and the reliability of the equipment and the safety and stability of the power grid can be ensured.

Description

Technical Field

[0001] This invention belongs to the field of disconnecting switch technology, specifically a fully insulated high-voltage disconnecting switch with current monitoring. Background Technology

[0002] A fully insulated high-voltage disconnect switch is a switchgear specifically designed for high-voltage power systems. Its core features are the combination of a fully insulated structure and current monitoring functionality. A fully insulated high-voltage disconnect switch is a switching device used in high-voltage (typically ≥72.5kV) circuits to safely isolate electrical equipment. All its live parts (such as contacts and conductors) are completely encased in solid insulating materials (such as epoxy resin and silicone rubber), preventing exposed conductors from contacting the external environment, thereby improving safety and adapting to complex environments (such as humid and polluted conditions).

[0003] Currently, the core structure of a fully insulated high-voltage disconnector includes key components such as main contacts, stationary contacts, moving contacts, disconnector (conductive arm), post insulators, operating mechanism, and base. Its working principle involves the operating mechanism driving the disconnector to rotate or translate, ensuring close contact between the moving and stationary contacts to establish a stable conductive path. However, traditional designs have significant drawbacks: the disconnector's fixation relies solely on the elastic clamping force of the stationary contact. During long-term operation, due to the combined effects of mechanical friction, arc erosion, and material fatigue, the clamping force of the stationary contact continuously weakens. The corrosion of the exposed copper busbars leads to poor conductivity, causing a series of serious problems, including localized overheating due to insufficient contact area, mechanical vibration and the risk of accidental tripping caused by disconnector loosening, and potential damage to the insulation material from arcing caused by poor contact. All of these directly affect the reliability of the equipment and the safe and stable operation of the power grid. Therefore, a fully insulated high-voltage disconnector with current monitoring is proposed. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a fully insulated high-voltage disconnecting switch with current monitoring. This solves the problem that existing fully insulated high-voltage disconnecting switches rely on an operating mechanism to drive the switch movement for on / off switching. Traditional designs depend on the clamping force of static contacts to fix the switch, but long-term operation leads to mechanical wear, arc erosion, and other factors that cause the clamping force to weaken, resulting in poor contact, localized overheating, mechanical vibration, and insulation damage. Furthermore, the long-term exposure of the copper busbars to corrosion causes poor conductivity, severely impacting equipment reliability and power grid stability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fully insulated high-voltage disconnector with current monitoring, comprising a steel channel, and further comprising:

[0006] A switch assembly, wherein the switch assembly is mounted on the steel channel;

[0007] A drive mechanism is installed at the bottom of the steel channel, and the drive mechanism drives the switch assembly through the separation component to realize the switching of the high voltage circuit;

[0008] The switch assembly includes closed insulating supports fixed at both ends of the steel channel. Each closed insulating support is provided with a support copper contact. Each of the two closed insulating supports is provided with a closed copper busbar fixing frame and a closed lock head. A closed copper busbar is hinged to the closed lock head.

[0009] The enclosed copper busbar is movably fitted with a locking bolt via a locking chamber.

[0010] The separation assembly includes a closed isolation pull ring that slides on the closed copper busbar, and the bottom of the closed isolation pull ring is hinged with a closed insulating push-pull rod that passes through a steel channel and is connected to the drive mechanism;

[0011] The interior of the closed isolation pull ring is provided with an inclined groove, and the end of the closed locking bolt slides in the inclined groove through the connecting post;

[0012] When the two ends of the initial enclosed copper busbar overlap the two enclosed insulating supports, the enclosed isolation pull ring moves down along the enclosed copper busbar and pushes the enclosed bolt through the inclined groove so that its end is engaged in the enclosed lock head.

[0013] Preferably, the drive mechanism includes a motor cover fixed to the bottom of the steel trough, a motor is mounted inside the motor cover via a motor plate, and a cam and gear are assembled at the output end of the motor;

[0014] The motor cover is equipped with a motor guard hook and a limit switch.

[0015] Preferably, a semi-circular large gear that meshes with the gear is installed inside the motor cover, and a gear pad is provided inside the motor cover. The other end of the semi-circular large gear is connected to the bottom of the closed and insulated push-pull rod.

[0016] Preferably, a receiving component is fixedly mounted on the top of the enclosed insulating support column, a sealing component is provided on the top of the receiving component, and a pushing component is installed at the end of the enclosed copper busbar.

[0017] Preferably, the receiving component includes a connecting frame fixed to the upper end of the enclosed insulating support column;

[0018] The enclosure assembly includes a support plate fixed to the connecting frame, with support frames at both ends of the support plate, and a closing cover plate slidably disposed at both ends of the connecting frame. A second elastic element is disposed on the side of the support frame to pull the closing cover plate.

[0019] Preferably, the pushing component includes a pushing member mounted to the bottom of the closed copper busbar via a first elastic member, and a protective plate is mounted on the bottom of the closed copper busbar outside the first elastic member.

[0020] Preferably, the opposite ends of the two closed cover plates are sleeved on the outside of the support plate, a transmission component is fixedly installed on the top of the closed cover plates, and a beam frame for supporting the pushing component is installed between the two support plates.

[0021] The enclosed copper busbar moves downward under the action of the drive mechanism and the separation component. The side of the pusher first contacts the inclined surface of the transmission component, pushing the two enclosed cover plates to move outward at the top of the connecting frame.

[0022] Preferably, the enclosure assembly further includes connecting contacts slidably disposed on the top of the connecting frame, with the two connecting contacts sliding between the two support plates;

[0023] A pressure plate is hinged to the support frame, and an elastic connector is fixed to the side of the connecting head.

[0024] Preferably, one end of the pressure plate contacts the elastic connector, and the other end of the pressure plate contacts the top of the inner wall of the closed cover plate;

[0025] The height of the top of the inner wall of the closed cover plate gradually decreases from the end furthest from the contact head.

[0026] Preferably, the receiving component further includes a limiting member slidably disposed within the connecting frame, and the connecting frame is provided with a third elastic member supporting the limiting member.

[0027] Initially, the opposing surfaces of the two connecting contacts are attached to both sides of the limiting member.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] This invention connects the high-voltage circuit to the inlet and outlet terminals of two enclosed insulated supports. When the high-voltage circuit needs to be turned on, a drive mechanism drives the enclosed insulated push-pull rod and the enclosed isolation pull ring to pull the enclosed copper busbar around the enclosed copper busbar fixing frame as the central axis. This connects the two ends of the enclosed copper busbar to the support copper contacts on the two enclosed insulated supports. As the drive mechanism continues to pull the enclosed insulated push-pull rod and the enclosed isolation pull ring downwards, the enclosed isolation pull ring slides along the arc of the enclosed copper busbar through the drive mechanism, and pushes the inclined groove to engage with the connecting post at the end of the enclosed locking bolt. This pushes the end of the enclosed locking bolt to engage inside the enclosed locking head, thus locking the enclosed copper busbar to the enclosed insulated support. In this process, it avoids the continuous decrease in the clamping force of the support copper contacts due to mechanical friction, arc erosion, and material fatigue during long-term operation, which could lead to loosening of the enclosed copper busbar and affect the reliability of the equipment and the safe and stable operation of the power grid.

[0030] When the circuit of this invention is in the open state, the two sealing covers are placed over the two support plates under the action of the second elastic element, so that the two ends of the two sealing covers are in contact, sealing and protecting the top of the closed insulating support, preventing external rainwater and impurities from entering the upper end of the closed insulating support, and ensuring the stability of the circuit closing.

[0031] This invention uses a closed copper busbar to push a component to contact a transmission component, which in turn pushes two closed cover plates to move at both ends from the top of the connecting frame. The closed cover plates push a pressure plate to rotate around the hinge point with the support frame as the central axis. One end of the pressure plate pushes an elastic connector, putting the elastic connector into a stored state. As the drive mechanism and separation component continue to pull the closed copper busbar downward, the bottom contact head of the closed copper busbar contacts the limiting component, pushing the limiting component downward to compress the third elastic component. When the limiting component moves into the interior of the connecting frame, the two connecting contact heads lose the limiting component's restraint and move relative to each other under the action of the elastic connector, contacting the bottom contact head of the closed copper busbar, thus achieving circuit connection and avoiding excessive friction between the bottom contact head and the connecting contact head of the closed copper busbar.

[0032] This invention achieves a seal at the connection between the copper busbar and the connecting contact head by moving the closed copper busbar downwards to align the contact head with the connecting contact head, and by limiting the pusher, the protective plate abuts against the top of the support plate. At the same time, the opposite ends of the two closed cover plates abut against the outside of the protective plate, thus achieving a seal at the connection between the closed copper busbar and the connecting contact head. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall appearance structure of the first embodiment of the present invention.

[0034] Figure 2 This is a schematic diagram of the disassembled structure of the first embodiment of the present invention.

[0035] Figure 3This is a top view of the structure of the first embodiment of the present invention.

[0036] Figure 4 This is a schematic diagram of the cooperation structure between the gate assembly and the separation assembly in the first embodiment of the present invention.

[0037] Figure 5 For the present invention Figure 5 Enlarged structural diagram at point A in the middle.

[0038] Figure 6 This is a schematic diagram of the external structure of the second embodiment of the present invention.

[0039] Figure 7 This is a schematic diagram of the cooperative structure of the pushing component, the sealing component, and the receiving component according to the second embodiment of the present invention.

[0040] Figure 8 This is a schematic diagram of the disassembly structure of the closed component according to the second embodiment of the present invention.

[0041] Figure 9 This is a schematic diagram of the cross-sectional structure of the pushing component, the sealing component, and the receiving component according to the second embodiment of the present invention.

[0042] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B.

[0043] In the diagram: 1. Steel channel; 2. Drive mechanism; 21. Motor cover; 22. Motor board; 23. Limit switch; 24. Protective hook; 25. Cam; 26. Motor; 27. Gear; 28. Semi-circular large gear; 29. ​​Gear pad; 3. Knife switch assembly; 31. Enclosed insulating support; 32. Enclosed copper busbar fixing frame; 33. Support copper contact; 34. Enclosed copper busbar; 35. Enclosed lock chamber; 36. Enclosed bolt; 37. Enclosed lock head; 4. Separation assembly; 41. 42. Enclosed insulated push-pull rod; 43. Enclosed isolation pull ring; 5. Inclined groove; 6. Pushing assembly; 51. Guard plate; 52. First elastic element; 53. Pushing element; 54. Beam frame; 6. Enclosure assembly; 61. Enclosure cover plate; 62. Transmission element; 63. Second elastic element; 64. Pressure plate; 65. Support plate; 66. Support frame; 67. Elastic connector; 68. Connecting contact head; 7. Receiving assembly; 71. Connecting frame; 72. Third elastic element; 73. Limiting element. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1

[0046] like Figures 1 to 10 As shown, the present invention provides a fully insulated high-voltage disconnecting switch with current monitoring, including a steel channel 1, and further comprising:

[0047] Switch assembly 3 is installed on steel channel 1;

[0048] Drive mechanism 2 is installed at the bottom of steel channel 1. Drive mechanism 2 drives switch assembly 3 through separation component 4 to realize the switching of high voltage circuit.

[0049] Among them, the switch assembly 3 includes closed insulating support columns 31 fixed at both ends of the steel channel 1, and a support copper contact 33 is provided on the closed insulating support column 31. A closed copper busbar fixing frame 32 and a closed lock head 37 are respectively provided on the two closed insulating support columns 31, and a closed copper busbar 34 is hinged on the closed lock head 37.

[0050] The enclosed copper busbar 34 is movably fitted with an enclosed locking bolt 36 via an enclosed locking chamber 35;

[0051] The separation assembly 4 includes a closed isolation pull ring 42 that slides on the closed copper busbar 34, and the bottom of the closed isolation pull ring 42 is hinged to a closed insulating push-pull rod 41 that passes through the steel groove 1 and is connected to the drive mechanism 2;

[0052] The interior of the closed isolation pull ring 42 is provided with an inclined groove 43, and the end of the closed locking bolt 36 slides in the inclined groove 43 through the connecting post;

[0053] When the two ends of the initial closed copper busbar 34 overlap the two closed insulating pillars 31, the closed isolation pull ring 42 moves down along the closed copper busbar 34 and pushes the closed bolt 36 through the inclined groove 43 so that its end is engaged in the closed lock head 37.

[0054] The high-voltage circuit is connected to two enclosed insulating supports 31. When the high-voltage circuit needs to be closed, the drive mechanism 2 drives the enclosed insulating push-pull rod 41 and the enclosed isolation pull ring 42 to pull the enclosed copper busbar 34 around the enclosed copper busbar fixing frame 32 as the central axis, so that the two ends of the enclosed copper busbar 34 are connected to the support copper contacts 33 on the two enclosed insulating supports 31. As the drive mechanism 2 continues to pull the enclosed insulating push-pull rod 41 and the enclosed isolation pull ring 42 downward, the enclosed isolation pull ring 42 slides along the enclosed copper busbar 34 and pushes the inclined groove 43 to cooperate with the connecting post at the end of the enclosed locking bolt 36, pushing the end of the enclosed locking bolt 36 to engage inside the enclosed locking head 37, thereby locking the enclosed copper busbar 34 and the enclosed insulating support 31. In this process, it is avoided that the clamping force of the support copper contacts 33 will continue to decrease due to the combined effects of mechanical friction, arc erosion and material fatigue during long-term operation, resulting in the enclosed copper busbar 34 becoming loose, which would affect the reliability of the equipment and the safe and stable operation of the power grid.

[0055] Conversely, when the circuit needs to be disconnected, the drive mechanism 2 pushes the closed insulating push-pull rod 41 and the closed isolating pull ring 42 upward along the closed copper busbar 34. Through the inclined groove 43 and the connecting post at the end of the closed locking bolt 36, the end of the closed locking bolt 36 is disengaged from the closed locking head 37. Then, the drive mechanism 2 continues to push the closed insulating push-pull rod 41 and the closed isolating pull ring 42 upward. The lower end of the closed isolating pull ring 42 abuts against the bottom of the closed copper busbar 34, which pushes the closed copper busbar 34 to disengage from the support copper contact 33 on the closed insulating support 31, thereby achieving circuit disconnection.

[0056] To further explain, the enclosed copper busbar 34 is fully insulated by coating the conductive parts, achieving physical isolation between the human body and high voltage electricity, making application and maintenance safer. The conductive materials are protected from wind and sun exposure, preventing corrosion, increasing lifespan, and improving conductivity.

[0057] Current monitoring is achieved through fiber optic current sensors, which utilize the Faraday magneto-optical effect. The magnetic field generated by the current causes the phase of polarized light in the fiber to shift, and the current value is inferred by demodulating the phase change.

[0058] With its fully insulated design, it has strong resistance to electromagnetic interference and is suitable for ultra-high voltage (≥500kV) and complex electromagnetic environments. It can be directly digitally output for easy remote transmission.

[0059] like Figures 1-5 As shown, the drive mechanism 2 includes a motor cover 21 fixed to the bottom of the steel trough 1. A motor 26 is installed inside the motor cover 21 via a motor plate 22. A cam 25 and a gear 27 are assembled at the output end of the motor 26.

[0060] The motor cover 21 is equipped with a motor guard hook 24 and a limit switch 23.

[0061] The motor cover 21 is equipped with a semi-circular large gear 28 that meshes with the gear 27. A gear pad 29 is provided inside the motor cover 21. The other end of the semi-circular large gear 28 is connected to the bottom of the enclosed and insulated push-pull rod 41.

[0062] When the circuit needs to be closed or opened, the motor 26 drives the gear 27 and the semi-circular large gear 28 to rotate. The end of the semi-circular large gear 28 then drives the enclosed insulated push-pull rod 41, the enclosed isolation pull ring 42, and the enclosed copper busbar 34 to move, thus realizing the closing and opening of the circuit. The semi-circular large gear 28 replaces the original straight rack and pinion, reducing the space occupied. The semi-circular large gear 28 provides sufficient stroke and speed to the motor output shaft, ensuring that the enclosed copper busbar 34 receives sufficient instantaneous starting force to be pushed or pulled.

[0063] Example 2

[0064] like Figures 7-10 As shown, a receiving component 7 is fixedly installed on the top of the closed insulating support column 31, a sealing component 6 is provided on the top of the receiving component 7, and a pushing component 5 is installed at the end of the closed copper busbar 34.

[0065] The receiving component 7 includes a connecting frame 71 fixed to the upper end of the enclosed insulating support column 31;

[0066] The enclosure component 6 includes a support plate 65 fixed on the connecting frame 71, with support frames 66 provided at both ends of the support plate 65, and a closing cover plate 61 slidably provided at both ends of the connecting frame 71. A second elastic member 63 is provided on the side of the support frame 66 to pull the closing cover plate 61.

[0067] The pushing component 5 includes a pushing member 53 installed at the bottom of the closed copper busbar 34 via a first elastic member 52, and a protective plate 51 is installed at the bottom of the closed copper busbar 34 and outside the first elastic member 52.

[0068] The opposite ends of the two closed cover plates 61 are sleeved on the outside of the support plate 65. The top of the closed cover plate 61 is fixedly equipped with a transmission component 62. A beam frame 54 for supporting the push component 53 is installed between the two support plates 65.

[0069] Under the action of the drive mechanism 2 and the separation component 4, the closed copper busbar 34 moves downward. The side of the pusher 53 first contacts the inclined surface of the transmission component 62, pushing the two closed cover plates 61 to move outward at the top of the connecting frame 71.

[0070] When the initial circuit is in the open state, the two closed covers 61 are covered by the two support plates 65 under the action of the second elastic member 63, so that the two ends of the two closed covers 61 are in contact, sealing and protecting the top of the closed insulating support 31, preventing external rainwater and impurities from entering the upper end of the closed insulating support 31. When the circuit needs to be closed, the drive mechanism 2 and the separation component 4 pull the closed copper busbar 34 to the top of the closed insulating support 31. As the closed copper busbar 34 moves down, the sides of the two pushers 53 first contact the inclined surfaces of the two transmission members 62, thereby pushing the two closed covers 61 to slide along the top of the connecting frame 71 to both ends and stretching the second elastic member 63, so that the top of the closed insulating support 31 is in the open state.

[0071] like Figures 7-10 As shown, the enclosure assembly 6 also includes a connecting contact 68 slidably disposed on the top of the connecting frame 71, and the two connecting contacts 68 slide between the two support plates 65;

[0072] A pressure plate 64 is hinged to the support frame 66, and an elastic connector 67 is fixed to the side of the contact head 68.

[0073] One end of the pressure plate 64 contacts the elastic connector 67, and the other end of the pressure plate 64 contacts the top of the inner wall of the closed cover plate 61.

[0074] The height of the top of the inner wall of the closed cover plate 61 gradually decreases from the end furthest from the connecting contact head 68;

[0075] The receiving component 7 also includes a limiting member 73 that is slidably disposed within the connecting frame 71, and a third elastic member 72 that supports the limiting member 73 is disposed inside the connecting frame 71.

[0076] Initially, the opposing surfaces of the two connecting contacts 68 are attached to the two sides of the limiting member 73.

[0077] The closed copper busbar 34 moves downward, pushing the pusher 53 into contact with the transmission component 62, and pushing the two closed covers 61 to move at both ends on the top of the connecting frame 71. During the movement of the closed covers 61, the height of the top of the inner wall of the closed covers 61 gradually decreases from the end away from the connecting contact head 68. The closed covers 61 push the pressure plate 64 to rotate around the hinge point with the support frame 66 as the central axis. One end of the pressure plate 64 pushes the elastic connector 67, putting the elastic connector 67 into a stored state. As the drive mechanism 2 and the separation component 4 move together... The closed copper busbar 34 is continuously pulled down, and the bottom contact head of the closed copper busbar 34 contacts the limiting member 73, pushing the limiting member 73 down to compress the third elastic member 72. When the limiting member 73 moves down into the interior of the connecting frame 71, the two connecting contacts 68 lose the limitation of the limiting member 73 and move relative to each other under the action of the elastic connecting member 67, contacting the bottom contact head of the closed copper busbar 34 to realize the connection of the circuit. In this process, excessive friction between the bottom contact head of the closed copper busbar 34 and the connecting contact head 68 is avoided.

[0078] At the same time, after the closed copper busbar 34 moves down and aligns with the connecting contact head 68, the beam frame 54 limits the pusher 53, causing the guard plate 51 to abut against the top of the support plate 65. Meanwhile, the opposite ends of the two closed cover plates 61 abut against the outside of the guard plate 51, thus achieving a seal at the connection between the closed copper busbar 34 and the connecting contact head 68.

[0079] Conversely, when the circuit is tripped, the closed copper busbar 34 gradually detaches from the top of the closed insulating support 31 under the action of the drive mechanism 2 and the separation component 4. As the contact head at the bottom of the closed copper busbar 34 moves upward, the limiting member 73 pushes the two connecting contact heads 68 to move outward under the action of the third elastic member 72 to achieve disengagement. At the same time, the pushing member 53 disengages from the top of the beam frame 54, and the two closed cover plates 61 reset under the action of the second elastic member 63 to achieve sealing of the top of the closed insulating support 31.

[0080] Working principle and usage process of this invention:

[0081] The high-voltage circuit is connected to two enclosed insulating supports 31. When the high-voltage circuit needs to be closed, the motor 26 drives the gear 27 and the semi-circular large gear 28 to rotate. The end of the semi-circular large gear 28 drives the enclosed insulating push-pull rod 41, the enclosed isolation pull ring 42, and the enclosed copper busbar 34, causing the enclosed copper busbar 34 to rotate around the enclosed copper busbar fixing frame 32 as the central axis. The two ends of the enclosed copper busbar 34 are connected to the support copper contacts 33 on the two enclosed insulating supports 31. As the drive mechanism 2 continues to pull the enclosed insulating push-pull rod 41 and the enclosed isolation pull ring 42 downwards, this... When the closed isolation pull ring 42 slides along the closed copper busbar 34, it pushes the inclined groove 43 to cooperate with the connecting post at the end of the closed locking bolt 36, pushing the closed locking bolt 36 so that its end is locked inside the closed locking head 37, thereby locking the closed copper busbar 34 and the closed insulating support 31. In this process, it avoids the clamping force of the support copper contact 33 from continuously decreasing due to the combined effects of mechanical friction, arc erosion and material fatigue during long-term operation, which may cause the closed copper busbar 34 to loosen, affecting the reliability of the equipment and the safe and stable operation of the power grid.

[0082] Conversely, when the circuit needs to be disconnected, the drive mechanism 2 pushes the closed insulating push-pull rod 41 and the closed isolation pull ring 42 upward along the closed copper busbar 34. Through the inclined groove 43 and the connecting post at the end of the closed locking bolt 36, the end of the closed locking bolt 36 is disengaged from the closed locking head 37. Then, the drive mechanism 2 continues to push the closed insulating push-pull rod 41 and the closed isolation pull ring 42 upward. The lower end of the closed isolation pull ring 42 abuts against the bottom of the closed copper busbar 34, which pushes the closed copper busbar 34 to disengage from the support copper contact 33 on the closed insulating support 31, thereby achieving circuit disconnection.

[0083] When the initial circuit is in the open state, the two sealing covers 61, under the action of the second elastic member 63, cover the outside of the two support plates 65, so that the two ends of the two sealing covers 61 are in contact, sealing and protecting the top of the closed insulating support 31, preventing external rainwater and impurities from entering the upper end of the closed insulating support 31. When the circuit needs to be closed, the drive mechanism 2 and the separation component 4 pull the closed copper busbar 34 to the top of the closed insulating support 31. As the closed copper busbar 34 moves down, the sides of the two pushers 53 first contact the inclined surfaces of the two transmission members 62, thereby pushing the two sealing covers 61 along the top of the connecting frame 71 to both ends and stretching the second elastic member 63, so that the top of the closed insulating support 31 is in the open state. In the open state, during the movement of the closed cover plate 61, the height of the top of the inner wall of the closed cover plate 61 gradually decreases from the end away from the connecting contact head 68. The closed cover plate 61 pushes the pressure plate 64 to rotate around the hinge point with the support frame 66 as the central axis. One end of the pressure plate 64 pushes the elastic connector 67, so that the elastic connector 67 is in a stored state. As the drive mechanism 2 and the separation component 4 continue to pull the closed copper busbar 34 down, the bottom contact head of the closed copper busbar 34 contacts the limiting member 73 and pushes the limiting member 73 down to compress the third elastic member 72. When the limiting member 73 moves down into the interior of the connecting frame 71, the two connecting contact heads 68 lose the limitation of the limiting member 73 and move relative to each other under the action of the elastic connector 67, contacting the bottom contact head of the closed copper busbar 34, realizing the connection of the circuit.

[0084] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0085] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully insulated high-voltage disconnector with current monitoring, comprising a steel channel (1), characterized in that, Also includes: A switch assembly (3) is mounted on the steel channel (1); The drive mechanism (2) is installed at the bottom of the steel channel (1). The drive mechanism (2) drives the switch assembly (3) through the separation component (4) to realize the switching of the high voltage circuit. The switch assembly (3) includes closed insulating support columns (31) fixed at both ends of the steel channel (1). The closed insulating support columns (31) are provided with support copper contacts (33). The two closed insulating support columns (31) are respectively provided with closed copper busbar fixing brackets (32) and closed lock heads (37). The closed lock heads (37) are hinged with closed copper busbars (34). The enclosed copper busbar (34) is movably fitted with an enclosed locking bolt (36) via an enclosed locking chamber (35); The separation component (4) includes a closed isolation pull ring (42) that slides on the closed copper busbar (34), and the bottom of the closed isolation pull ring (42) is hinged to a closed insulating push-pull rod (41) that passes through the steel groove (1) and is connected to the drive mechanism (2). The closed isolation pull ring (42) has an inclined groove (43) inside, and the end of the closed locking bolt (36) slides in the inclined groove (43) through the connecting post; When the two ends of the initial closed copper busbar (34) are attached to the two closed insulating pillars (31), the closed isolation pull ring (42) moves down along the closed copper busbar (34) and pushes the closed bolt (36) through the inclined groove (43) so that its end is engaged in the closed lock head (37).

2. The fully insulated high-voltage disconnector with current monitoring according to claim 1, characterized in that: The drive mechanism (2) includes a motor cover (21) fixed to the bottom of the steel channel (1), and a motor (26) is installed inside the motor cover (21) through a motor plate (22). The output end of the motor (26) is equipped with a cam (25) and a gear (27). The motor cover (21) is equipped with a motor guard hook (24) and a limit switch (23).

3. The fully insulated high-voltage disconnector with current monitoring according to claim 2, characterized in that: The motor housing (21) is equipped with a semi-circular large gear (28) that meshes with the gear (27). A gear pad (29) is provided inside the motor housing (21). The other end of the semi-circular large gear (28) is connected to the bottom of the closed insulating push-pull rod (41).

4. The fully insulated high-voltage disconnector with current monitoring according to claim 1, characterized in that: The top of the closed insulating support (31) is fixed with a receiving component (7), the top of the receiving component (7) is provided with a sealing component (6), and the end of the closed copper busbar (34) is installed with a pushing component (5).

5. The fully insulated high-voltage disconnector with current monitoring according to claim 4, characterized in that: The receiving component (7) includes a connecting frame (71) fixed to the upper end of the enclosed insulating support (31). The enclosure component (6) includes a support plate (65) fixed on the connecting frame (71), and a support frame (66) is provided at both ends of the support plate (65). A closing cover plate (61) is slidably provided at both ends of the connecting frame (71). A second elastic element (63) is provided on the side of the support frame (66) to pull the closing cover plate (61).

6. The fully insulated high-voltage disconnector with current monitoring according to claim 5, characterized in that: The pushing component (5) includes a pushing member (53) mounted on the bottom of the closed copper busbar (34) via a first elastic member (52), and a protective plate (51) is mounted on the bottom of the closed copper busbar (34) and outside the first elastic member (52).

7. The fully insulated high-voltage disconnector with current monitoring according to claim 6, characterized in that: The opposite ends of the two closed cover plates (61) are sleeved on the outside of the support plate (65), and a transmission component (62) is fixedly installed on the top of the closed cover plate (61). A beam frame (54) for receiving the pusher (53) is installed between the two support plates (65). The closed copper busbar (34) moves downward under the action of the drive mechanism (2) and the separation component (4). The side of the pusher (53) first contacts the inclined surface of the transmission component (62), pushing the two closed cover plates (61) to move outward at the top of the connecting frame (71).

8. The fully insulated high-voltage disconnector with current monitoring according to claim 7, characterized in that: The enclosure assembly (6) further includes a connecting contact (68) slidably disposed on the top of the connecting frame (71), and the two connecting contacts (68) slide between the two support plates (65); A pressure plate (64) is hinged to the support frame (66), and an elastic connector (67) is fixed to the side of the connecting contact (68).

9. The fully insulated high-voltage disconnector with current monitoring according to claim 8, characterized in that: One end of the pressure plate (64) is in contact with the elastic connector (67), and the other end of the pressure plate (64) is in contact with the top of the inner wall of the closed cover plate (61); The height of the top of the inner wall of the closed cover (61) gradually decreases from the end furthest from the connecting contact (68).

10. The fully insulated high-voltage disconnector with current monitoring according to claim 9, characterized in that: The receiving component (7) further includes a limiting member (73) slidably disposed within the connecting frame (71), and the connecting frame (71) is provided with a third elastic member (72) supporting the limiting member (73). Initially, the opposing surfaces of the two connecting contacts (68) are attached to both sides of the limiting member (73).

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