A high voltage vacuum circuit breaker driving device

Abstract

The utility model relates to the technical field of high-voltage vacuum circuit breaker drive devices, and discloses a high-voltage vacuum circuit breaker drive device, comprising: a base plate, an insulating support member is arranged on the top of the base plate, a current transformer is installed on one side of the insulating support member, a mechanism box is fixed on one side of the base plate, a voltage transformer is installed on the top of the mechanism box; a circuit breaker mechanism, the circuit breaker mechanism is located between the mechanism box and the current transformer, and the circuit breaker mechanism comprises a connecting mechanism, a driving mechanism and a plug-in mechanism; through the setting of the circuit breaker mechanism, the current transformer and the voltage transformer can be blocked without manual operation by the user, avoiding electric shock or other accidents caused by careless operation in a high-voltage and high-current environment, ensuring the stability and consistency of the action speed during the operation, increasing the accuracy of the opening and closing speed and timing of the circuit breaker, and solving the problem of easy misoperation or inaccurate operation in traditional devices.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage vacuum circuit breaker driving devices, in particular to a high-voltage vacuum circuit breaker driving device. Background Art

[0002] High-voltage vacuum circuit breaker drive device generally refers to the drive device used to control and operate high-voltage vacuum circuit breakers. In the power system, vacuum circuit breakers are used to protect the power grid from short circuits and overloads. The drive device is responsible for controlling the opening and closing actions of the circuit breaker to ensure that the circuit breaker is opened or closed quickly and reliably when needed, so as to ensure the stability and safety of the power grid operation.

[0003] When in use, the traditional device first monitors the operation status and load conditions of the power grid through the power system monitoring equipment, detects whether there is a short circuit or other abnormal conditions, and sets the action conditions of the high-voltage vacuum circuit breaker according to the actual situation and needs of the power grid. The isolating knife is driven to contact or separate the current transformer and the voltage transformer to achieve circuit breaking. However, the user needs to manually operate the isolating knife in the process of driving the isolating knife. In high voltage and high current environments, careless operation may cause electric shock or other accidents. Manual operation of the isolating knife cannot guarantee the stability and consistency of the action speed, reducing the accuracy of the opening and closing speed and timing of the circuit breaker. At the same time, it is easy to have problems of misoperation or inaccurate operation, thereby reducing work efficiency and failing to quickly respond and perform necessary power-off operations. Utility Model Content

[0004] The utility model aims to provide a high-voltage vacuum circuit breaker driving device, which solves the problem in the background technology that the user needs to manually operate the isolating knife, and in the high-voltage and high-current environment, careless operation may cause electric shock or other accidents.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A high-voltage vacuum circuit breaker driving device, comprising:

[0007] A bottom plate, an insulating support is provided on the top of the bottom plate, a current transformer is installed on one side of the insulating support, a mechanism box is fixed on one side of the bottom plate, and a voltage transformer is installed on the top of the mechanism box;

[0008] A circuit-breaking mechanism, wherein the circuit-breaking mechanism is located between the mechanism box and the current transformer, and the circuit-breaking mechanism comprises a connecting mechanism, a driving mechanism and a plug-in mechanism, wherein the connecting mechanism is located at the bottom of the current transformer and corresponds to the plug-in mechanism, the plug-in mechanism is located at the bottom of the voltage transformer, and the driving mechanism is located inside the mechanism box and is used to drive the plug-in mechanism to move.

[0009] Preferably, the connection mechanism comprises a relay fixed at the bottom of the current transformer, a transfer rod is fixed at the bottom of the relay, and the transfer rod extends to the interior of the mechanism box.

[0010] Preferably, the plug-in mechanism includes a connecting column fixed at the bottom of the voltage transformer, one side of the connecting column is connected to a cable, one end of the cable is connected to a fixing plate, one side of the fixing plate is fixed to a connecting rod, and one side of the bottom of the transfer rod is provided with a connecting groove for inserting the connecting rod.

[0011] Preferably, the driving mechanism includes a driving motor fixed to one side of the mechanism box and a threaded rod and a limit rod rotatably installed inside the mechanism box. A movable plate is provided inside the mechanism box, the limit rod is inserted into the inside of the movable plate, the threaded rod is screwed to the movable plate, and the fixed plate is fixed to the movable plate.

[0012] Preferably, an observation mechanism is provided on the top of the movable plate, and the observation mechanism includes an insulating plate fixed on the top of the movable plate, the insulating plate extends to the top of the mechanism box and is installed with a linkage plate, a fixed seat is fixed on the top of the mechanism box, an observation plate is fixed on one side of the linkage plate, a groove cavity for the observation plate to move is opened inside the fixed seat, and a resistance mechanism for resisting the observation plate is provided between the observation plate and the fixed seat.

[0013] Preferably, the interference mechanism includes interference blocks fixed on both sides of the observation plate and an interference seat installed on the top of the fixed seat, one side of the interference seat is provided with a interference groove for the interference block to be inserted, a interference plate is installed inside the interference groove, a movable rod is fixed to one side of the interference plate, the movable rod extends to one side of the interference seat and is installed with a baffle, a spring is connected between the interference plate and the interference groove, and the spring is sleeved on the outer wall of the movable rod.

[0014] Preferably, a reinforcement sleeve is fixed to the outer wall of the insulating support, a reinforcement seat corresponding to the insulating support is installed on the top of the base plate, and a plurality of evenly distributed reinforcement rods are connected between the reinforcement sleeve and the base plate.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] 1. The utility model can achieve the blocking between the current transformer and the voltage transformer through the setting of the circuit breaker mechanism, without the need for manual operation by the user, avoiding electric shock or other accidents caused by careless operation in high voltage and high current environments, ensuring the stability and consistency of the action speed during operation, increasing the accuracy of the opening and closing speed and timing of the circuit breaker, and solving the problem of easy misoperation or inaccurate operation in traditional devices, thereby increasing the working efficiency of the utility model;

[0017] 2. The utility model can observe the movement state of the connecting rod through the setting of the observation mechanism, confirm whether the opening and closing action of the circuit breaker is performed as expected, and can help to quickly identify any abnormality or operating error, and take necessary measures in time to reduce the possibility of misoperation. At the same time, through the setting of the resistance mechanism, the transfer rod can be protected to avoid the situation where the connecting rod moves too much and causes damage to the transfer rod, thereby extending the service life of the transfer rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model when it is disassembled;

[0020] Figure 3 It is a structural schematic diagram of the circuit breaker mechanism of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the observation mechanism of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the interference mechanism of the utility model.

[0023] Among them: 1. Base plate; 2. Circuit breaker; 3. Observation mechanism; 4. Mechanism box; 5. Insulation support; 6. Current transformer; 7. Voltage transformer;

[0024] 21. Connecting column; 22. Driving motor; 23. Limiting rod; 24. Moving plate; 25. Fixed plate; 26. Connecting rod; 27. Transfer rod; 28. Threaded rod;

[0025] 31. Insulating plate; 32. Fixed seat; 33. Resistance seat; 34. Observation plate; 35. Resistance block; 36. Resistance plate; 37. Spring; 38. Baffle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 and Figure 2A high-voltage vacuum circuit breaker driving device comprises: a base plate (1), an insulating support member (5) is arranged on the top of the base plate (1), a current transformer (6) is installed on one side of the insulating support member (5), a mechanism box (4) is fixed on one side of the base plate (1), a voltage transformer (7) is installed on the top of the mechanism box (4), a reinforcement sleeve is fixed on the outer wall of the insulating support member (5), a reinforcement seat corresponding to the insulating support member (5) is installed on the top of the base plate (1), and a plurality of uniformly distributed reinforcement rods are connected between the reinforcement sleeve and the base plate (1).

[0028] See also Figure 1 , Figure 2 and Figure 3 , a circuit breaker mechanism (2), the circuit breaker mechanism (2) is located between the mechanism box (4) and the current transformer (6), and the circuit breaker mechanism (2) includes a connecting mechanism, a driving mechanism and a plug-in mechanism, the connecting mechanism is located at the bottom of the current transformer (6) and corresponds to the plug-in mechanism, the plug-in mechanism is located at the bottom of the voltage transformer (7), the driving mechanism is located inside the mechanism box (4) and is used to drive the plug-in mechanism to move, the connecting mechanism includes a relay fixed to the bottom of the current transformer (6), a transmission rod (27) is fixed to the bottom of the relay, and the transmission rod (27) extends to the inside of the mechanism box (4), and the plug-in mechanism includes a connecting column (27) fixed to the bottom of the voltage transformer (7) 1), a cable is connected to one side of the connecting column (21), one end of the cable is connected to a fixing plate (25), a connecting rod (26) is fixed to one side of the fixing plate (25), a connecting groove for inserting the connecting rod (26) is provided on one side of the bottom of the transmission rod (27), the driving mechanism comprises a driving motor (22) fixed to one side of the mechanism box (4) and a threaded rod (28) and a limiting rod (23) rotatably mounted inside the mechanism box (4), a moving plate (24) is arranged inside the mechanism box (4), the limiting rod (23) is inserted into the inside of the moving plate (24), the threaded rod (28) is screwed to the moving plate (24), and the fixing plate (25) is fixed to the moving plate (24).

[0029] The threaded rod 28 is driven to rotate by the driving motor 22, and the rotation of the threaded rod 28 causes the movable plate 24 to move on its outer wall. The setting of the limit rod 23 makes the movable plate 24 more stable during the movement. The movement of the movable plate 24 drives the fixed plate 25 to move, and the movement of the fixed plate 25 drives the connecting rod 26 to move synchronously until the connecting rod 26 is inserted into the connecting groove. When the threaded rod 28 is driven to rotate in the opposite direction by the driving motor 22, the circuit breaker itself can form an opening and closing action, thereby protecting the power system from the influence of overcurrent or other faults.

[0030] See also Figure 2 , Figure 4 and Figure 5 The top of the movable plate (24) is provided with an observation mechanism (3), the observation mechanism (3) comprises an insulating plate (31) fixed on the top of the movable plate (24), the insulating plate (31) extends to the top of the mechanism box (4) and is installed with a linkage plate, the top of the mechanism box (4) is fixed with a fixed seat (32), one side of the linkage plate is fixed with an observation plate (34), the inside of the fixed seat (32) is provided with a groove cavity for the observation plate (34) to move, and a resistance mechanism for causing the observation plate (34) to resist is provided between the observation plate (34) and the fixed seat (32), The interference mechanism comprises interference blocks (35) fixed on both sides of the observation plate (34) and an interference seat (33) installed on the top of the fixed seat (32); one side of the interference seat (33) is provided with an interference groove for the interference block (35) to be inserted; a interference plate (36) is installed inside the interference groove; one side of the interference plate (36) is fixed with a movable rod; the movable rod extends to one side of the interference seat (33) and is installed with a baffle (38); a spring (37) is connected between the interference plate (36) and the interference groove; the spring (37) is sleeved on the outer wall of the movable rod.

[0031] The movement of the movable plate 24 drives the insulating plate 31 to move, the movement of the insulating plate 31 drives the linkage plate to move, the movement of the linkage plate causes the observation plate 34 to move in the groove cavity, the movement of the observation plate 34 drives the resistance block 35 to move, when the resistance block 35 conflicts with the resistance plate 36, the resistance plate 36 drives the spring 37 to contract, the contraction of the spring 37 causes the movable rod to drive the baffle 38 to move, the movement of the baffle 38 allows the user to observe the plug-in condition of the connecting rod 26 and the connecting groove to avoid damage to the transmission rod 27.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high voltage vacuum circuit breaker driving device, characterized in that: include: A base plate (1), an insulating support member (5) is arranged on the top of the base plate (1), a current transformer (6) is installed on one side of the insulating support member (5), a mechanism box (4) is fixed on one side of the base plate (1), and a voltage transformer (7) is installed on the top of the mechanism box (4); A circuit breaker mechanism (2), the circuit breaker mechanism (2) is located between a mechanism box (4) and a current transformer (6), and the circuit breaker mechanism (2) comprises a connecting mechanism, a driving mechanism and a plug-in mechanism, the connecting mechanism is located at the bottom of the current transformer (6) and corresponds to the plug-in mechanism, the plug-in mechanism is located at the bottom of the voltage transformer (7), and the driving mechanism is located inside the mechanism box (4) and is used to drive the plug-in mechanism to move.

2. A high voltage vacuum circuit breaker driving device according to claim 1, characterized in that: The connection mechanism comprises a relay fixed at the bottom of the current transformer (6), a transmission rod (27) is fixed at the bottom of the relay, and the transmission rod (27) extends to the inside of the mechanism box (4).

3. A high voltage vacuum circuit breaker driving device according to claim 2, characterized in that: The plug-in mechanism comprises a connecting column (21) fixed at the bottom of the voltage transformer (7), one side of the connecting column (21) is connected to a cable, one end of the cable is connected to a fixing plate (25), one side of the fixing plate (25) is fixed to a connecting rod (26), and one side of the bottom of the transfer rod (27) is provided with a connecting groove for inserting the connecting rod (26).

4. A high voltage vacuum circuit breaker driving device according to claim 3, characterized in that: The driving mechanism comprises a driving motor (22) fixed to one side of a mechanism box (4), and a threaded rod (28) and a limit rod (23) rotatably mounted inside the mechanism box (4); a moving plate (24) is arranged inside the mechanism box (4); the limit rod (23) is inserted into the moving plate (24); the threaded rod (28) is screwed to the moving plate (24); and the fixed plate (25) is fixed to the moving plate (24).

5. A high voltage vacuum circuit breaker driving device according to claim 4, characterized in that: An observation mechanism (3) is arranged on the top of the movable plate (24), and the observation mechanism (3) comprises an insulating plate (31) fixed on the top of the movable plate (24), the insulating plate (31) extending to the top of the mechanism box (4) and being installed with a linkage plate, a fixed seat (32) being fixed on the top of the mechanism box (4), an observation plate (34) being fixed on one side of the linkage plate, a groove cavity for the observation plate (34) to move is provided inside the fixed seat (32), and a resistance mechanism for causing the observation plate (34) to resist is arranged between the observation plate (34) and the fixed seat (32).

6. A high voltage vacuum circuit breaker driving device according to claim 5, characterized in that: The interference mechanism comprises interference blocks (35) fixed on both sides of the observation plate (34) and an interference seat (33) installed on the top of the fixed seat (32); one side of the interference seat (33) is provided with an interference groove for the interference block (35) to be inserted; a interference plate (36) is installed inside the interference groove; one side of the interference plate (36) is fixed with a movable rod; the movable rod extends to one side of the interference seat (33) and is installed with a baffle (38); a spring (37) is connected between the interference plate (36) and the interference groove; the spring (37) is sleeved on the outer wall of the movable rod.

7. A high voltage vacuum circuit breaker driving device according to claim 1, characterized in that: A reinforcement sleeve is fixed to the outer wall of the insulating support member (5), a reinforcement seat corresponding to the insulating support member (5) is installed on the top of the base plate (1), and a plurality of evenly distributed reinforcement rods are connected between the reinforcement sleeve and the base plate (1).

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