Intelligent mechanical cooperation armored high-voltage cabinet circuit breaker execution mechanism

Abstract

The utility model relates to a circuit breaking execution mechanism, specifically is a kind of armored high-voltage cabinet circuit breaking execution mechanism of intelligent mechanical cooperation, including installation frame and multiple groups of static contact installed on installation frame;Multiple groups of dynamic contact are arranged on installation frame;Top plate is equipped with inlay block, energy storage spring;Still include closing assembly, set up on installation frame;And when dynamic contact and static contact resist to inlay block and limit the locking assembly of stop;Circuit breaking assembly, circuit breaking assembly can make locking assembly remove inlay block limit state, to make energy storage spring and closing assembly reset;Still include the control module of being used for controlling closing assembly and circuit breaking assembly action with installation frame fixed connection;And utilize the elastic force of energy storage spring to drive closing assembly reset, reduce energy consumption;Resistance is small in the reset process of closing assembly, ensure that high-voltage cabinet can be switched to circuit breaking state in time, avoid the occurrence of safety accident.

Description

Technical Field

[0001] This utility model relates to a circuit breaker actuator, specifically an intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator. Background Technology

[0002] Armored high-voltage switchgear is a widely used high-voltage switchgear in power systems, primarily used for connecting, disconnecting, controlling, and protecting high-voltage circuits. Its core feature is its metal armored enclosure, providing high protection and mechanical strength. The circuit breaker mechanism is the core actuator in the armored high-voltage switchgear, mainly responsible for connecting / disconnecting normal operating current and quickly cutting off fault current in the event of short circuits, overloads, or other faults, ensuring the safety of the power system and equipment. Its performance directly determines the reliability, safety, and service life of the switchgear.

[0003] Common circuit breaking mechanisms include stationary and moving contacts, a closing assembly and a circuit breaking assembly that control the contact and separation of the moving and stationary contacts, and an energy storage spring that acts as the power source for circuit breaking. The closing assembly drives the moving and stationary contacts to contact each other and compresses the energy storage spring, and the closing assembly can maintain the energy storage state of the energy storage spring. The circuit breaking assembly controls the movement of the energy storage spring to release the elastic force, thereby driving the moving and stationary contacts to separate, so that the high-voltage switchgear switches to the circuit breaking state.

[0004] In common circuit breaking mechanisms, when the moving contact and stationary contact come into contact, the closing assembly has two states: one is that the closing assembly separates from the moving contact and completes the reset, which consumes some energy and is not conducive to efficient energy utilization; the other is that the closing assembly remains connected to the moving contact and is reset by the elastic force of the energy storage spring under the control of the circuit breaking assembly. In common circuit breaking mechanisms, the resistance during the reset stroke of the closing assembly is relatively large, so incomplete reset is prone to occur, which is not conducive to subsequent closing actions. Incomplete reset also leads to the distance between the moving contact and the stationary contact being too small, which can easily cause arcing and reduce safety. Utility Model Content

[0005] The purpose of this utility model is to provide an intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator includes a mounting frame for fixed connection with the high-voltage switchgear. It also includes multiple sets of stationary contacts mounted on the mounting frame; The mounting frame is provided with a top plate; the top plate is provided with multiple sets of moving contacts that can abut against the stationary contacts; The top plate is equipped with a top rod; an energy storage spring is wrapped around the top rod; a fitting block is installed at the end of the top rod; the two ends of the energy storage spring respectively abut against the mounting frame and the fitting block; It also includes a closing assembly, disposed on the mounting frame, comprising a slip ring for moving the mating block to compress the energy storage spring; and a locking assembly for limiting the mating block when the moving contact abuts against the stationary contact; A circuit breaker assembly that enables the locking assembly to release the limiting state of the locking block, so that the energy storage spring and the closing assembly can be reset. It also includes a control module that is fixedly connected to the mounting frame for controlling the operation of the closing assembly and the circuit breaking assembly.

[0007] The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator described above includes: multiple sets of telescopic sleeves that slide and engage with the moving contacts on the top plate; compression springs are installed inside the telescopic sleeves; the two ends of the compression springs respectively abut against the moving contacts and the top plate; and the multiple sets of moving contacts have different heights; a fixed sleeve that slides and engages with the engaging block is installed on the mounting frame.

[0008] The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator described above includes: a closing assembly further comprising a closing motor mounted on the mounting frame; a closing shaft fitted with a slip ring mounted on the output end of the closing motor; a closing groove group formed on the closing shaft; a first protruding post slidably fitted with the closing groove group mounted on the slip ring; and the slip ring being fixedly connected to the fitting block.

[0009] The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator described above: the closing slot group includes a first threaded slot and a first vertical slot; the two ends of the first threaded slot are connected to the two ends of the first vertical slot.

[0010] The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator described above includes a locking component that slides into the locking block; a relief spring is provided inside the locking block; the two ends of the relief spring respectively abut against the locking block and the locking block; and a locking groove is provided on the fixed sleeve that abuts against the locking block.

[0011] The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator described above comprises: a circuit breaker motor mounted on the mounting frame; a circuit breaker shaft mounted on the output end of the circuit breaker motor; a circuit breaker groove group formed on the circuit breaker shaft; a sliding sleeve fitted on the circuit breaker shaft; a second protruding post mounted on the sliding sleeve that slides in cooperation with the circuit breaker groove group; a wedge block mounted on the sliding sleeve that slides in cooperation with the locking groove; and the wedge block and the locking block pressing in cooperation; a return spring wrapped around the circuit breaker shaft; and the two ends of the return spring abutting against the sliding sleeve and the mounting frame, respectively.

[0012] The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator described above: the circuit breaker slot group includes a second threaded slot and a second vertical slot; the two ends of the second threaded slot are connected to the two ends of the second vertical slot.

[0013] The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator described above: a telescopic tube fixedly connected to the moving contact is installed on the telescopic sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are: By limiting the locking component on the interlocking block, the stability of the high-voltage switchgear's energized state can be ensured; by releasing the locking component's limiting effect through the circuit breaker component, the controllability of the circuit breaker mechanism can be improved, thereby enhancing the safety of the high-voltage switchgear; and by using the elastic force of the energy storage spring to drive the closing component to reset, energy consumption can be effectively reduced; and the resistance during the resetting process of the closing component is small, thus ensuring that the high-voltage switchgear can switch to the circuit-breaking state in a timely manner, avoiding the occurrence of safety accidents. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the armored high-voltage switchgear circuit breaker actuator that works in conjunction with intelligent machinery.

[0016] Figure 2 A schematic diagram of the top plate structure of the circuit breaker actuator in an armored high-voltage switchgear designed for intelligent mechanical operation.

[0017] Figure 3 A schematic diagram of the moving contact in the circuit breaker actuator of an armored high-voltage switchgear designed for intelligent mechanical operation.

[0018] Figure 4 A schematic diagram of the closing shaft and the opening shaft in the circuit breaker actuator of an armored high-voltage switchgear designed for intelligent mechanical operation.

[0019] Figure 5 A schematic diagram of the sliding sleeve in the circuit breaker actuator of an armored high-voltage switchgear designed for intelligent mechanical operation.

[0020] Figure 6 for Figure 5 A schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Mounting frame; 101. Fixing sleeve; 102. Locking groove; 2. Static contactor; 3. Top plate; 301. Top rod; 4. Telescopic sleeve; 401. Telescopic tube; 5. Moving contact; 6. Control module; 7. Closing motor; 8. Closing shaft; 801. First threaded groove; 802. First vertical groove; 9. Slip ring; 901. First protruding post; 10. Interlocking blocks; 11. Energy storage spring; 12. Return spring; 13. Locking block; 14. Yield spring; 15. Compression spring; 16. Open-circuit motor; 17. Circuit-breaking shaft; 1701. Second threaded groove; 1702. Second vertical groove; 18. Sliding sleeve; 1801. Wedge block; 1802. Second protruding post. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-6 As an embodiment of this utility model, the intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator includes an installation frame 1 for fixed connection with the high-voltage switchgear; It also includes multiple sets of stationary contacts 2 installed on the mounting frame 1; The mounting frame 1 is provided with a top plate 3; the top plate 3 is provided with multiple sets of moving contacts 5 that can abut against the stationary contact 2; The top plate 3 is equipped with a top rod 301; an energy storage spring 11 is wrapped around the top rod 301; a fitting block 10 is installed at the end of the top rod 301; the two ends of the energy storage spring 11 abut against the mounting frame 1 and the fitting block 10 respectively. It also includes a closing assembly, which is disposed on the mounting frame 1, including a slip ring 9 for moving the locking block 10 to compress the energy storage spring 11; and a locking assembly for limiting the locking block 10 when the moving contact 5 abuts against the stationary contact 2. A circuit breaker assembly that enables the locking assembly to release the limiting state of the locking block 10, so that the energy storage spring 11 and the closing assembly can be reset. It also includes a control module 6, which is fixedly connected to the mounting frame 1, for controlling the operation of the closing assembly and the circuit breaking assembly.

[0024] In this embodiment, when the stationary contact 2 and the moving contact 5 are in contact, the high-voltage cabinet is in an energized state; when the stationary contact 2 and the moving contact 5 are disengaged, the high-voltage cabinet is in an de-energized state.

[0025] When the control module 6 controls the closing assembly to perform the closing action, the slip ring 9 will drive the locking block 10 to move closer to the stationary contact 2. At this time, the top rod 301 and the top plate 3 can drive multiple sets of moving contacts 5 to move closer to multiple sets of stationary contacts 2. At the same time, the energy storage spring 11 is compressed. When multiple sets of moving contacts 5 and multiple sets of stationary contacts 2 are in contact, the locking assembly will lock the position of the locking block 10 to maintain the contact state between the moving contacts 5 and the stationary contacts 2, and maintain the compressed state of the energy storage spring 11.

[0026] When the control module 6 controls the circuit breaker assembly to perform the circuit breaker action, the circuit breaker assembly will release the locking state of the locking assembly on the locking block 10; at this time, the elastic force of the energy storage spring 11 will drive the locking block 10 away from the stationary contact 2, so as to drive multiple sets of moving contacts 5 to separate from the stationary contact 2 through the top rod 301 and the top plate 3; at the same time, it will drive the slip ring 9 to move synchronously to reset.

[0027] By limiting the locking component on the interlocking block 10, the stability of the high-voltage switchgear's energized state can be ensured; by releasing the locking component's limiting effect through the circuit breaker component, the controllability of the circuit breaker mechanism can be improved, thereby enhancing the safety of the high-voltage switchgear; and by using the elastic force of the energy storage spring 11 to drive the closing component to reset, energy consumption can be effectively reduced; and the resistance during the resetting process of the closing component is small, thereby ensuring that the high-voltage switchgear can switch to the circuit-breaking state in a timely manner, avoiding the occurrence of safety accidents.

[0028] As a further embodiment of this utility model, multiple sets of telescopic sleeves 4 are installed on the top plate 3 and slidably fitted with the moving contact 5; a compression spring 15 is provided inside the telescopic sleeve 4; the two ends of the compression spring 15 respectively abut against the moving contact 5 and the top plate 3; and the multiple sets of moving contacts 5 have different heights; a fixed sleeve 101 is installed on the mounting frame 1 and slidably fitted with the fitting block 10.

[0029] In this embodiment, under the elastic force of the compression spring 15, part of the moving contact 5 will extend out of the telescopic sleeve 4; and because the height of the moving contact 5 is different, the length of the extended part is also different.

[0030] Driven by the closing assembly, the locking block 10 slides within the fixed sleeve 101, thereby driving the telescopic sleeve 4 to move toward the stationary contact 2 via the top rod 301 and the top plate 3. Under the action of the compression spring 15, the moving contact 5 can move synchronously.

[0031] As the top plate 3 moves, multiple sets of moving contacts 5 will sequentially contact the stationary contact 2, and the compression spring 15 will be compressed. The elastic force of the compression spring 15 can make the stationary contact 2 and the moving contact 5 contact tightly and stably, thereby avoiding poor contact.

[0032] As a further embodiment of this utility model, the closing assembly further includes a closing motor 7 mounted on the mounting frame 1; a closing shaft 8 that is sleeved with the slip ring 9 is mounted on the output end of the closing motor 7; a closing groove group is provided on the closing shaft 8; a first protruding post 901 that slides with the closing groove group is mounted on the slip ring 9; and the slip ring 9 is fixedly connected to the fitting block 10.

[0033] As a further embodiment of this utility model, the closing slot group includes a first threaded slot 801 and a first vertical slot 802; the two ends of the first threaded slot 801 are connected to the two ends of the first vertical slot 802.

[0034] In this embodiment, the closing motor 7 is started, thereby driving the closing shaft 8 to rotate, which in turn drives the first threaded groove 801 to rotate.

[0035] Under the squeezing action of the groove wall of the first threaded groove 801, the first protruding post 901 will move closer to the stationary contact 2, thereby driving the slip ring 9 to move synchronously, thereby driving the mating block 10 to move closer to the stationary contact 2, so that the moving contact 5 moves closer to the stationary contact 2; and when the first protruding post 901 slides to the connection between the first threaded groove 801 and the first vertical groove 802, the stationary contact 2 and the moving contact 5 are completely in contact, and the compression spring 15 is compressed; at this time, the locking assembly will limit the mating block 10, thereby ensuring the stability of the energized state.

[0036] By using the closing assembly to make the moving contact 5 come into contact with the stationary contact 2, the difficulty of closing can be reduced and the closing efficiency is high.

[0037] As a further embodiment of this utility model, the locking assembly includes a locking block 13 that slides and engages with the fitting block 10; a relief spring 14 is provided inside the fitting block 10; the two ends of the relief spring 14 respectively abut against the locking block 13 and the fitting block 10; and a locking groove 102 is provided on the fixing sleeve 101 that abuts against the locking block 13.

[0038] In this embodiment, in the initial state, the inner wall of the fixed sleeve 101 will press against the locking block 13, thereby compressing the relief spring 14.

[0039] When the slip ring 9 drives the fitting block 10 to move towards the stationary contact 2, the fitting block 10 will slide inside the fixed sleeve 101, thereby driving the locking block 13 to slide synchronously. Under the elastic force of the relief spring 14, the locking block 13 always abuts against the inner wall of the fixed sleeve 101; at the same time, the energy storage spring 11 is compressed.

[0040] When the stationary contact 2 and the moving contact 5 come into contact, the locking block 13 moves to the position of the locking groove 102. At this time, under the elastic force of the relief spring 14, the locking block 13 will enter the locking groove 102.

[0041] One end of the locking block 13 is a bevel; the surface that abuts against the locking groove 102 is a plane. After the locking block 13 enters the locking groove 102, the plane will abut against the groove wall of the locking groove 102, so that the fitting block 10 cannot move away from the stationary contact 2.

[0042] By limiting the locking component on the interlocking block 10, the stability of the high-voltage switchgear's energized state can be ensured.

[0043] As a further embodiment of this utility model, the circuit breaking assembly includes a circuit breaking motor 16 mounted on the mounting frame 1; a circuit breaking shaft 17 is mounted on the output end of the circuit breaking motor 16; a circuit breaking groove group is formed on the circuit breaking shaft 17; a sliding sleeve 18 is sleeved on the circuit breaking shaft 17; a second protruding post 1802 that slides and engages with the circuit breaking groove group is mounted on the sliding sleeve 18; a wedge block 1801 that slides and engages with the locking groove 102 is mounted on the sliding sleeve 18; and the wedge block 1801 is pressed and engaged with the locking block 13; a return spring 12 is wrapped around the circuit breaking shaft 17; the two ends of the return spring 12 abut against the sliding sleeve 18 and the mounting frame 1, respectively.

[0044] As a further embodiment of this utility model, the circuit breaker groove group includes a second threaded groove 1701 and a second vertical groove 1702; the two ends of the second threaded groove 1701 are connected to the two ends of the second vertical groove 1702.

[0045] In this embodiment, the circuit breaker motor 16 is started, thereby driving the circuit breaker shaft 17 to rotate, which in turn drives the second threaded groove 1701 to rotate.

[0046] Under the squeezing action of the groove wall of the second threaded groove 1701, the second protruding post 1802 will move away from the stationary contact 2, thereby driving the wedge block 1801 to move synchronously through the sliding sleeve 18; and compressing the return spring 12.

[0047] As the wedge block 1801 slides in the locking groove 102, the slope of the wedge block 1801 will squeeze the locking block 13, thereby making the contact area between the plane of the locking block 13 and the locking groove 102 smaller and smaller; when the contact area is zero, the slope of the locking block 13 will contact the locking groove 102. At this time, under the elastic force of the energy storage spring 11, the locking block 13 will separate from the locking groove 102 and compress the relief spring 14.

[0048] At this time, the mating block 10 will move away from the stationary contact 2 in the fixed sleeve 101, thereby driving the slip ring 9 to move synchronously. During this process, the first protruding post 901 will slide in the first vertical groove 802. When the first protruding post 901 reaches the connection between the first vertical groove 802 and the first threaded groove 801, the closing assembly completes the reset.

[0049] Furthermore, when the second protruding post 1802 slides to the connection between the second threaded groove 1701 and the second vertical groove 1702, the elastic force of the reset spring 12 will cause the second protruding post 1802 to slide in the second vertical groove 1702. When the second protruding post 1802 slides to the other connection between the second threaded groove 1701 and the second vertical groove 1702, the sliding sleeve 18 completes the reset.

[0050] By releasing the limiting function of the locking component through the circuit breaker component, the controllability of the circuit breaker mechanism can be improved, thereby enhancing the safety of the high-voltage switchgear. Furthermore, the use of the elastic force of the energy storage spring 11 to drive the closing component to reset can effectively reduce energy consumption. Moreover, the resistance during the resetting process of the closing component is small, thus ensuring that the high-voltage switchgear can be switched to the circuit breaker state in a timely manner, avoiding the occurrence of safety accidents.

[0051] As a further embodiment of this utility model, a telescopic tube 401 fixedly connected to the moving contact 5 is installed on the telescopic sleeve 4.

[0052] In this embodiment, the telescopic tube 401 is used to protect the moving contact 5, reduce the probability of oxidation and damage to the moving contact 5, thereby improving the service life of the circuit breaker mechanism.

[0053] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. An intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator, comprising a mounting frame (1) for fixed connection with the high-voltage switchgear. Its features are, It also includes multiple sets of stationary contacts (2) mounted on the mounting frame (1); The mounting frame (1) is provided with a top plate (3); the top plate (3) is provided with multiple sets of moving contacts (5) that can abut against the stationary contact (2); The top plate (3) is equipped with a top rod (301); an energy storage spring (11) is wrapped around the top rod (301); a fitting block (10) is installed at the end of the top rod (301); the two ends of the energy storage spring (11) abut against the mounting frame (1) and the fitting block (10) respectively; It also includes a closing assembly, which is mounted on the mounting frame (1), including a slip ring (9) for moving the mating block (10) to compress the energy storage spring (11); and a locking assembly for limiting the mating block (10) when the moving contact (5) abuts against the stationary contact (2); The circuit breaker assembly enables the locking assembly to release the limiting state of the interlocking block (10) so that the energy storage spring (11) and the closing assembly can be reset. It also includes a control module (6) that is fixedly connected to the mounting frame (1) for controlling the operation of the closing assembly and the circuit breaking assembly.

2. The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator according to claim 1, characterized in that, Multiple sets of telescopic sleeves (4) that slide and engage with the moving contact (5) are installed on the top plate (3); a compression spring (15) is provided inside the telescopic sleeve (4); the two ends of the compression spring (15) abut against the moving contact (5) and the top plate (3) respectively; and the multiple sets of moving contacts (5) have different heights; a fixed sleeve (101) that slides and engages with the engaging block (10) is installed on the mounting frame (1).

3. The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator according to claim 1, characterized in that, The closing assembly also includes a closing motor (7) mounted on the mounting frame (1); a closing shaft (8) that is sleeved with the slip ring (9) is mounted on the output end of the closing motor (7); a closing groove group is provided on the closing shaft (8); a first protruding post (901) that slides with the closing groove group is mounted on the slip ring (9); and the slip ring (9) is fixedly connected to the fitting block (10).

4. The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator according to claim 3, characterized in that, The closing slot group includes a first threaded slot (801) and a first vertical slot (802); the two ends of the first threaded slot (801) are connected to the two ends of the first vertical slot (802).

5. The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator according to claim 2, characterized in that, The locking assembly includes a locking block (13) that slides into the fitting block (10); a relief spring (14) is provided inside the fitting block (10); the two ends of the relief spring (14) abut against the locking block (13) and the fitting block (10) respectively; a locking groove (102) is provided on the fixing sleeve (101) that abuts against the locking block (13).

6. The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator according to claim 5, characterized in that, The circuit breaking assembly includes a circuit breaking motor (16) mounted on the mounting frame (1); a circuit breaking shaft (17) is mounted on the output end of the circuit breaking motor (16); a circuit breaking groove group is provided on the circuit breaking shaft (17); a sliding sleeve (18) is sleeved on the circuit breaking shaft (17); a second protruding post (1802) is mounted on the sliding sleeve (18) and slides with the circuit breaking groove group; a wedge (1801) is mounted on the sliding sleeve (18) and slides with the locking groove (102); and the wedge (1801) is pressed with the locking block (13); a return spring (12) is wrapped around the circuit breaking shaft (17); the two ends of the return spring (12) abut against the sliding sleeve (18) and the mounting frame (1), respectively.

7. The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator according to claim 6, characterized in that, The circuit breaker groove group includes a second threaded groove (1701) and a second vertical groove (1702); the two ends of the second threaded groove (1701) are connected to the two ends of the second vertical groove (1702).

8. The intelligent mechanically coordinated armored high-voltage switchgear circuit breaker actuator according to claim 2, characterized in that, The telescopic sleeve (4) is equipped with a telescopic tube (401) that is fixedly connected to the moving contact (5).

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