Opening device of high-voltage circuit breaker

Abstract

The utility model discloses an opening device of a high-voltage circuit breaker, which comprises a circuit breaker shell, the top end of the inner wall of the circuit breaker shell is fixedly connected with a fixed seat, the lower end of the fixed seat is provided with a circular rotating seat, the upper end of the circular rotating seat is fixedly connected with an extension block, and the extension block is rotatably connected with the fixed seat. A rail groove is formed in the circular rotating base, a limiting groove is formed in the circular rotating base, and a second limiting rod is slidably connected into the limiting groove. According to the utility model, the first limiting rod can slide in the track groove, the first limiting rod is initially located at the bottom end of the long vertical groove, the permanent magnet is adsorbed on the iron core at the moment, when the temperature in the circuit breaker shell is too high, the temperature control switch connects a circuit of the circuit mechanism, and the iron core generates magnetism and generates repulsive force with the permanent magnet under the action of the circuit mechanism, so that the permanent magnet moves upwards; when the wire bridge is disconnected with the first binding post and the second binding post, the first limiting rod slides into the first arc-shaped groove.

Description

Technical Field

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

[0002] The high-voltage circuit breaker opening device enables the power to be quickly and automatically cut off when an accident such as a short circuit occurs in the high-voltage line.

[0003] The existing high-voltage circuit breaker disconnecting device has certain drawbacks when in use. It cannot quickly cut off the power when in use, and it cannot remotely supply power after the power is cut off. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a tripping device for a high-voltage circuit breaker.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tripping device of a high-voltage circuit breaker comprises a circuit breaker housing, a fixing seat is fixedly connected to the top of the inner wall of the circuit breaker housing, a circular rotating seat is arranged at the lower end of the fixing seat, an extension block is fixedly connected to the upper end of the circular rotating seat, and the extension block is rotatably connected to the fixing seat, a track groove is arranged on the circular rotating seat, a limiting groove is arranged in the circular rotating seat, a second limiting rod is slidably connected in the limiting groove, a permanent magnet is fixedly connected to the lower end of the second limiting rod, a support column is fixedly connected to the upper end of the permanent magnet, a fixing sleeve is fixedly connected to the upper end of the support column, a sliding groove is arranged in the fixing sleeve, a spring is fixedly connected to one end of the inner wall, one end of the spring is fixedly connected to the first limiting rod, and the first limiting rod is located in the track groove, a circuit mechanism is arranged in the circuit breaker housing, and the circuit mechanism is located below the permanent magnet.

[0006] As a further description of the above technical solution:

[0007] The circuit mechanism includes a battery, one end of the battery is electrically connected to an electromagnet, one end of the electromagnet is electrically connected to a temperature control switch, and the temperature control switch is electrically connected to the battery, one side of the temperature control switch is connected in parallel with a remote control switch, an iron core is arranged in the electromagnet, and the iron core is fixedly connected to the circuit breaker housing, and the iron core is located directly below the permanent magnet.

[0008] As a further description of the above technical solution:

[0009] The track groove includes a second arc groove, a long vertical groove, a first arc groove, and a short vertical groove, and the second arc groove, the long vertical groove, the first arc groove, and the short vertical groove are connected end to end, and a step is provided at the connection between the long vertical groove and the first arc groove, and a step is provided between the short vertical groove and the second arc groove.

[0010] As a further description of the above technical solution:

[0011] A second arc extinguisher is fixedly connected to the inner wall of the circuit breaker housing, a second terminal is fixedly connected inside the second arc extinguisher, a first arc extinguisher is fixedly connected to the inner wall of the circuit breaker housing, a first terminal is fixedly connected inside the first arc extinguisher, a wire bridge is arranged between the second arc extinguisher and the first arc extinguisher, and the wire bridge is fixedly connected to the permanent magnet.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model can slide in the track groove by setting a first limit rod. Initially, the first limit rod is located at the bottom end of the long vertical groove. At this time, the permanent magnet is adsorbed on the iron core. When the temperature in the circuit breaker housing is too high, the temperature control switch connects the circuit of the circuit mechanism. Under the action of the circuit mechanism, the iron core generates magnetism, which generates repulsive force with the permanent magnet, causing the permanent magnet to move up and disconnect the connection between the wire bridge and the first terminal and the second terminal. At this time, the first limit rod slides into the first arc groove. After the temperature recovers, the circuit mechanism is disconnected, and the permanent magnet will approach the iron core under the action of electromagnetic force. At this time, the first limit rod slides to the bottom end of the short vertical groove. At this time, the wire bridge is not connected with the first terminal and the second terminal. After the circuit maintenance is completed, the remote control remote switch is temporarily connected, the permanent magnet moves up, the first limit rod first slides into the second arc groove and then slides the initial bottom end of the long vertical groove, connecting the wire bridge with the second terminal and the first terminal, which can effectively quickly disconnect the high voltage electricity in the event of a short circuit, and can also remotely control the remote control switch to temporarily connect and disconnect the high voltage electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic cross-sectional view of a trip device for a high-voltage circuit breaker proposed in the utility model;

[0015] Figure 2 for Figure 1 A magnified view of middle;

[0016] Figure 3 A schematic diagram of a circular rotating seat of a trip device of a high-voltage circuit breaker proposed by the utility model;

[0017] Figure 4 The utility model is a three-dimensional diagram of a circular rotating seat of a trip device of a high-voltage circuit breaker.

[0018] Legend:

[0019] 1. Circuit breaker housing; 2. Permanent magnet; 3. Wire bridge; 4. First arc extinguisher; 5. First terminal; 6. Electromagnet; 7. Battery; 8. Temperature control switch; 9. Iron core; 10. Second terminal; 11. Second arc extinguisher; 12. Remote control switch; 13. Support column; 14. Fixed sleeve; 15. Slide groove; 16. Spring; 17. First limit rod; 18. Extension block; 19. Fixed seat; 20. Track groove; 21. Round swivel seat; 22. Second limit rod; 23. Limit groove; 24. Long vertical groove; 25. First arc groove; 26. Short vertical groove; 27. Second arc groove; 28. Circuit mechanism. DETAILED DESCRIPTION

[0020] Reference Figure 1-4 The utility model provides an embodiment: a high-voltage circuit breaker opening device, comprising a circuit breaker housing 1, a fixing seat 19 is fixedly connected to the top of the inner wall of the circuit breaker housing 1, a circular rotating seat 21 is arranged at the lower end of the fixing seat 19, an extension block 18 is fixedly connected to the upper end of the circular rotating seat 21, and the extension block 18 is rotatably connected to the fixing seat 19, a track groove 20 is arranged on the circular rotating seat 21, a limiting groove 23 is arranged in the circular rotating seat 21, a second limiting rod 22 is slidably connected in the limiting groove 23, and the lower end of the second limiting rod 22 is fixedly connected There is a permanent magnet 2, the upper end of the permanent magnet 2 is fixedly connected to a support column 13, the upper end of the support column 13 is fixedly connected to a fixed sleeve 14, a slide groove 15 is arranged in the fixed sleeve 14, one end of the inner wall is fixedly connected to a spring 16, one end of the spring 16 is fixedly connected to a first limit rod 17, and the first limit rod 17 is located in a track groove 20, a circuit mechanism 28 is arranged in the circuit breaker housing 1, and the circuit mechanism 28 is located below the permanent magnet 2; the first limit rod 17 can slide in the track groove 20, and initially the first limit rod 17 is located at the bottom end of the long vertical groove 24.

[0021] The circuit mechanism 28 includes a battery 7, one end of the battery 7 is electrically connected to an electromagnet 6, one end of the electromagnet 6 is electrically connected to a temperature control switch 8, and the temperature control switch 8 is electrically connected to the battery 7, one side of the temperature control switch 8 is connected in parallel with a remote control switch 12, an iron core 9 is arranged in the electromagnet 6, and the iron core 9 is fixedly connected to the circuit breaker housing 1, and the iron core 9 is located directly below the permanent magnet 2. When the temperature in the circuit breaker housing 1 is too high, the temperature control switch 8 connects the circuit of the circuit mechanism 28, and the iron core 9 generates magnetism under the action of the circuit mechanism 28, and generates a repulsive force with the permanent magnet 2, so that the permanent magnet 2 moves up, disconnecting the connection between the wire bridge 3 and the first terminal 5 and the second terminal 10. At this time, the first limit The position rod 17 slides into the first arc groove 25, and the circuit mechanism 28 is disconnected after the temperature is restored. The permanent magnet 2 will approach the iron core 9 under the action of electromagnetic force. At this time, the first limit rod 17 slides to the bottom of the short vertical groove 26. At this time, the wire bridge 3 is not connected to the first terminal 5 and the second terminal 10. After the circuit maintenance is completed, the remote control switch 12 is briefly connected, the permanent magnet 2 moves up, and the first limit rod 17 first slides into the second arc groove 27 and then slides to the bottom of the initial long vertical groove 24, connecting the wire bridge 3 with the second terminal 10 and the first terminal 5. It can effectively and quickly disconnect the high voltage electricity in the event of a short circuit, and can also remotely control the remote control switch 12 to briefly connect and disconnect the high voltage electricity.

[0022] The track groove 20 includes a second arc groove 27, a long vertical groove 24, a first arc groove 25, and a short vertical groove 26, and the second arc groove 27, the long vertical groove 24, the first arc groove 25, and the short vertical groove 26 are connected end to end, and a step is provided at the connection between the long vertical groove 24 and the first arc groove 25, and a step is provided between the short vertical groove 26 and the second arc groove 27.

[0023] A second arc extinguisher 11 is fixedly connected to the inner wall of the circuit breaker housing 1, a second terminal 10 is fixedly connected inside the second arc extinguisher 11, a first arc extinguisher 4 is fixedly connected to the inner wall of the circuit breaker housing 1, a first terminal 5 is fixedly connected inside the first arc extinguisher 4, a wire bridge 3 is arranged between the second arc extinguisher 11 and the first arc extinguisher 4, and the wire bridge 3 is fixedly connected to the permanent magnet 2.

[0024] Working principle: The first limit rod 17 can slide in the track groove 20. Initially, the first limit rod 17 is located at the bottom of the long vertical groove 24. At this time, the permanent magnet 2 is adsorbed on the iron core 9. When the temperature in the circuit breaker housing 1 is too high, the temperature control switch 8 connects the circuit of the circuit mechanism 28. Under the action of the circuit mechanism 28, the iron core 9 generates magnetism, which generates repulsive force with the permanent magnet 2, so that the permanent magnet 2 moves upward, disconnecting the connection between the wire bridge 3 and the first terminal 5 and the second terminal 10. At this time, the first limit rod 17 slides into the first arc groove 25. After the temperature recovers, the circuit mechanism 28 is disconnected, and the permanent magnet 2 Under the action of electromagnetic force, it will approach the iron core 9. At this time, the first limit rod 17 slides to the bottom of the short vertical groove 26. At this time, the wire bridge 3 is not connected with the first terminal 5 and the second terminal 10. After the circuit maintenance is completed, the remote control switch 12 is briefly connected, and the permanent magnet 2 moves up. The first limit rod 17 first slides into the second arc groove 27 and then slides to the bottom of the initial long vertical groove 24, connecting the wire bridge 3 with the second terminal 10 and the first terminal 5. It can effectively and quickly disconnect the high voltage electricity in the event of a short circuit, and can also remotely control the remote control switch 12 to briefly connect and disconnect the high voltage electricity.

Claims

1. A tripping device for a high voltage circuit breaker, comprising a circuit breaker housing (1), characterized in that: The top of the inner wall of the circuit breaker housing (1) is fixedly connected to a fixing seat (19), the lower end of the fixing seat (19) is provided with a circular rotating seat (21), the upper end of the circular rotating seat (21) is fixedly connected to an extension block (18), and the extension block (18) is rotatably connected to the fixing seat (19), a track groove (20) is provided on the circular rotating seat (21), a limiting groove (23) is provided in the circular rotating seat (21), a second limiting rod (22) is slidably connected in the limiting groove (23), and the lower end of the second limiting rod (22) is fixedly connected to A permanent magnet (2) is connected, the upper end of the permanent magnet (2) is fixedly connected to a support column (13), the upper end of the support column (13) is fixedly connected to a fixing sleeve (14), a sliding groove (15) is arranged in the fixing sleeve (14), one end of the inner wall is fixedly connected to a spring (16), one end of the spring (16) is fixedly connected to a first limiting rod (17), and the first limiting rod (17) is located in the track groove (20), and a circuit mechanism (28) is arranged in the circuit breaker housing (1), and the circuit mechanism (28) is located below the permanent magnet (2).

2. The opening device of a high voltage circuit breaker according to claim 1, characterized in that: The circuit mechanism (28) comprises a battery (7), one end of the battery (7) is electrically connected to an electromagnet (6), one end of the electromagnet (6) is electrically connected to a temperature control switch (8), and the temperature control switch (8) is electrically connected to the battery (7), one side of the temperature control switch (8) is connected in parallel with a remote control switch (12), an iron core (9) is arranged inside the electromagnet (6), the iron core (9) is fixedly connected to the circuit breaker housing (1), and the iron core (9) is located directly below the permanent magnet (2).

3. The opening device of a high voltage circuit breaker according to claim 1, characterized in that: The track groove (20) comprises a second arc groove (27), a long vertical groove (24), a first arc groove (25), and a short vertical groove (26), and the second arc groove (27), the long vertical groove (24), the first arc groove (25), and the short vertical groove (26) are connected end to end, and a step is provided at the connection between the long vertical groove (24) and the first arc groove (25), and a step is provided between the short vertical groove (26) and the second arc groove (27).

4. The opening device of a high voltage circuit breaker according to claim 1, characterized in that: A second arc extinguisher (11) is fixedly connected to the inner wall of the circuit breaker housing (1), a second terminal (10) is fixedly connected inside the second arc extinguisher (11), a first arc extinguisher (4) is fixedly connected to the inner wall of the circuit breaker housing (1), a first terminal (5) is fixedly connected inside the first arc extinguisher (4), a wire bridge (3) is provided between the second arc extinguisher (11) and the first arc extinguisher (4), and the wire bridge (3) is fixedly connected to the permanent magnet (2).

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