Operating mechanism for circuit breaker of gas-insulated switchgear

Abstract

The utility model discloses a gas-insulated switchgear breaker operating mechanism comprising a bottom plate, the top of the bottom plate is fixedly connected with a breaker housing, the breaker housing is internally and fixedly provided with a circuit breaking device, and two sides of the circuit breaking device are fixedly connected with connecting wires. The other ends of the two connecting wires are fixedly connected with an external inflation device and an alternating current motor respectively, one side of the circuit breaker shell is fixedly connected with a dust filter screen, a connecting plate is arranged on the outer side of the dust filter screen, one side of the connecting plate is fixedly connected with a brush, and one side of the brush makes contact with the dust filter screen. According to the utility model, the heat dissipation assembly drives the air inside the circuit breaker housing to circulate with the outside air, the dust filter screen filters the air sucked into the circuit breaker housing, and the heat dissipation fan exhausts the hot air inside the circuit breaker housing, so that a closed loop for air circulation is formed, and the service life of the circuit breaker is prolonged. The heat dissipation efficiency of the circuit breaker during working is further enhanced, the use performance of the circuit breaker is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-filled cabinet circuit breakers, in particular to an operating mechanism for a gas-filled cabinet circuit breaker. Background Art

[0002] A gas-filled circuit breaker is a protective device used in electrical systems. Its main function is to cut off the current in time when a short circuit or overload occurs in the circuit to avoid damaging equipment or causing dangerous situations such as fire. A gas-filled circuit breaker is usually composed of a circuit breaker body, an electromagnet, and a gas-filled device. It can automatically cut off the circuit when the current is overloaded, thereby protecting electrical equipment and personal safety.

[0003] After searching, a Chinese patent discloses an inflatable cabinet circuit breaker operating mechanism, and its authorization announcement number is (CN208674028U), which includes a lower plate, and support columns are vertically fixedly connected to the four corners of the upper surface of the lower plate, and the support columns are fixedly connected to the upper plate away from the top of the lower plate. The upper plate is arranged parallel to the lower plate, and a motor box is fixedly arranged on one side of the upper surface of the lower plate, and a motor fixing seat is fixedly arranged on the bottom of the inner wall of the motor box, and an AC motor is fixedly arranged on the upper surface of the motor fixing seat, and an energy storage shaft is fixedly connected to the output shaft of the AC motor.

[0004] Although this patent solves the dust and dust prevention problems existing in existing gas-filled cabinet circuit breakers, during the use of the gas-filled cabinet circuit breaker, especially under high-load or long-term operation, the circuit breaker will generate a certain amount of heat. If the heat is not dissipated in time, it may affect its performance and life, and even cause safety problems. Utility Model Content

[0005] The purpose of the utility model is to provide an operating mechanism for a gas-filled cabinet circuit breaker to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an operating mechanism of an inflatable cabinet circuit breaker, comprising a base plate, a circuit breaker housing is fixedly connected to the top of the base plate, a circuit breaker device is fixedly installed inside the circuit breaker housing, connecting wires are fixedly connected to both sides of the circuit breaker device, and the other ends of the two connecting wires are respectively fixedly connected to an external inflatable device and an AC motor, a dust filter is fixedly connected to one side of the circuit breaker housing, a connecting plate is arranged on the outside of the dust filter, a brush is fixedly connected to one side of the connecting plate, and one side of the brush is in contact with the dust filter, a displacement component is arranged on the outside of the circuit breaker housing, and the displacement component is used to drive the connecting plate to move, a heat dissipation port is opened on the top of the circuit breaker housing, and a heat dissipation component is arranged on one side of the heat dissipation port and inside the circuit breaker housing.

[0007] As a further preferred embodiment of the present technical solution, the displacement assembly includes a mounting plate and a fixing plate, a threaded rod is rotatably connected between the mounting plate and the fixing plate, a slider is threadedly connected to the outer side of the threaded rod, and one side of the slider is fixedly connected to the connecting plate.

[0008] As a further preferred embodiment of the present technical solution, the heat dissipation assembly includes a mounting frame, the mounting frame is fixedly connected to the top of the inner wall of the circuit breaker housing, a heat dissipation fan is rotatably connected inside the mounting frame, a power motor is fixedly installed on one side of the mounting frame, and an output end of the power motor extends to the interior of the mounting frame and is fixedly connected to the heat dissipation fan.

[0009] As a further preferred embodiment of the present technical solution, a servo motor is fixedly mounted on the top of the mounting plate, and an output end of the servo motor passes through the mounting plate and is fixedly connected to the threaded rod.

[0010] As a further preferred embodiment of the present technical solution, a slide rail is fixedly connected to one side of the circuit breaker housing, a slide rod is fixedly connected to one side of the connecting plate, and an outer side of the slide rod is slidably connected to an inner wall of the slide rail.

[0011] As a further preferred embodiment of the present technical solution, an air guide port is provided inside the mounting frame, and one side of the air guide port is a slope structure.

[0012] The utility model provides an operating mechanism for a gas-filled cabinet circuit breaker, which has the following beneficial effects:

[0013] (1) The utility model drives the circulation of air inside the circuit breaker housing and external air through the heat dissipation component, filters the air sucked into the circuit breaker housing through the dust filter, and uses the heat dissipation fan to discharge the hot air inside the circuit breaker housing, thereby forming a closed loop of air circulation, further enhancing the heat dissipation efficiency of the circuit breaker during operation, improving the performance of the circuit breaker, and extending its service life.

[0014] (2) The utility model drives the connecting plate and the brush to move on one side of the dust filter through the displacement component. The brush contacts the surface of the dust filter so that the brush can effectively sweep away the dust on the surface of the dust filter during the movement, thereby further improving the air circulation effect and enhancing the heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0017] Figure 3It is a schematic diagram of the internal structure of the circuit breaker housing of the utility model;

[0018] Figure 4 This is a schematic diagram of the heat dissipation component structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the connecting plate part of the utility model;

[0020] In the figure: 1. bottom plate; 2. circuit breaker housing; 3. connecting wire; 4. circuit breaker device; 5. heat dissipation port; 6. dust filter; 7. mounting plate; 8. fixing plate; 9. threaded rod; 10. servo motor; 11. slider; 12. connecting plate; 13. brush; 14. slide rod; 15. slide rail; 16. mounting frame; 17. cooling fan; 18. power motor; 19. air guide port. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1-Figure 5 As shown, in this embodiment, an inflatable cabinet circuit breaker operating mechanism includes a base plate 1, a circuit breaker housing 2 is fixedly connected to the top of the base plate 1, a circuit breaker device 4 is fixedly installed inside the circuit breaker housing 2, connecting wires 3 are fixedly connected to both sides of the circuit breaker device 4, and the other ends of the two connecting wires 3 are respectively fixedly connected to the external inflatable device and the AC motor, a dust filter 6 is fixedly connected to one side of the circuit breaker housing 2, a connecting plate 12 is arranged on the outside of the dust filter 6, a brush 13 is fixedly connected to one side of the connecting plate 12, and one side of the brush 13 is in contact with the dust filter 6, a displacement component is arranged on the outside of the circuit breaker housing 2, and the displacement component is used to drive the connecting plate 12 to move, a heat dissipation port 5 is opened on the top of the circuit breaker housing 2, and a heat dissipation component is arranged on one side of the heat dissipation port 5 and inside the circuit breaker housing 2.

[0023] During the use of the circuit breaker, the circuit breaker device 4 will emit a certain amount of heat. At this time, the heat dissipation component is used to drive the air circulation inside and outside the circuit breaker housing 2, the dust filter 6 is used to filter the air sucked into the circuit breaker housing 2, and the heat dissipation port 5 is used to discharge the hot air inside the circuit breaker housing 2, thereby further improving the heat dissipation performance, ensuring the use efficiency of the circuit breaker, and extending the service life. After a long period of filtration, a lot of dust will be attached to the surface of the dust filter 6. At this time, the displacement component is used to drive the connecting plate 12 to move, and the brush 13 on one side of the connecting plate 12 is used to contact the surface of the dust filter 6, so as to further sweep away the dust on the surface of the dust filter 6.

[0024] like Figure 1-Figure 5As shown, the displacement assembly includes a mounting plate 7 and a fixing plate 8, a threaded rod 9 is rotatably connected between the mounting plate 7 and the fixing plate 8, a slider 11 is threadedly connected to the outer side of the threaded rod 9, one side of the slider 11 is fixedly connected to the connecting plate 12, a servo motor 10 is fixedly installed on the top of the mounting plate 7, the output end of the servo motor 10 passes through the mounting plate 7 and is fixedly connected to the threaded rod 9, a slide rail 15 is fixedly connected to one side of the circuit breaker housing 2, a slide rod 14 is fixedly connected to one side of the connecting plate 12, and the outer side of the slide rod 14 is slidably connected to the inner wall of the slide rail 15.

[0025] The threaded rod 9 is driven to rotate between the mounting plate 7 and the fixed plate 8 by the servo motor 10, so that the slider 11 outside the threaded rod 9 drives the connecting plate 12 to move with the assistance of the slide rod 14 and the slide rail 15, so that the brush 13 on one side of the connecting plate 12 sweeps the dust off the mesh surface of the dust filter 6.

[0026] like Figure 1-Figure 5 As shown, the heat dissipation assembly includes a mounting frame 16, which is fixedly connected to the top of the inner wall of the circuit breaker housing 2, and a heat dissipation fan 17 is rotatably connected inside the mounting frame 16. A power motor 18 is fixedly installed on one side of the mounting frame 16, and the output end of the power motor 18 extends to the inside of the mounting frame 16 and is fixedly connected to the heat dissipation fan 17. An air guide port 19 is opened inside the mounting frame 16, and one side of the air guide port 19 is a slope structure.

[0027] The power motor 18 drives the cooling fan 17 to rotate at high speed inside the mounting frame 16, further driving the hot air inside the circuit breaker housing 2 to be discharged through the heat dissipation port 5. At the same time, the air guide port 19 is provided to further improve the heat dissipation effect.

[0028] The utility model provides an operating mechanism for a circuit breaker of an inflatable cabinet, and the specific working principle is as follows: during the use of the circuit breaker, the circuit breaker device 4 will emit a certain amount of heat. At this time, a power motor 18 is used to drive a cooling fan 17 to rotate at a high speed inside a mounting frame 16, so that the air inside the circuit breaker housing 2 and the external air can circulate, and the air sucked into the circuit breaker housing 2 is filtered through a dust filter 6, and the hot air inside the circuit breaker housing 2 is discharged through a heat dissipation port 5 by the cooling fan 17. When the dust filter 6 filters the sucked air, a lot of dust will adhere to the mesh surface of the dust filter 6. At this time, a threaded rod 9 is driven by a servo motor 10 to rotate between a mounting plate 7 and a fixed plate 8, so that a slider 11 on the outer side of the threaded rod 9 drives a connecting plate 12 to move with the assistance of a sliding rod 14 and a sliding rail 15, so that a brush 13 on one side of the connecting plate 12 sweeps off dust on the mesh surface of the dust filter 6.

[0029] Although 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 of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An operating mechanism for a gas-filled cabinet circuit breaker, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a circuit breaker housing (2); a circuit breaker device (4) is fixedly installed inside the circuit breaker housing (2); connecting wires (3) are fixedly connected to both sides of the circuit breaker device (4); the other ends of the two connecting wires (3) are respectively fixedly connected to an external air filling device and an AC motor; a dust filter (6) is fixedly connected to one side of the circuit breaker housing (2); a connecting plate (12) is arranged on the outside of the dust filter (6); a brush (13) is fixedly connected to one side of the connecting plate (12); one side of the brush (13) is in contact with the dust filter (6); a displacement component is arranged on the outside of the circuit breaker housing (2); the displacement component is used to drive the connecting plate (12) to move; a heat dissipation port (5) is provided on the top of the circuit breaker housing (2); a heat dissipation component is arranged on one side of the heat dissipation port (5) and inside the circuit breaker housing (2).

2. The operating mechanism of a gas-filled cabinet circuit breaker according to claim 1, characterized in that: The displacement assembly comprises a mounting plate (7) and a fixing plate (8), a threaded rod (9) is rotatably connected between the mounting plate (7) and the fixing plate (8), a slider (11) is threadedly connected to the outer side of the threaded rod (9), and one side of the slider (11) is fixedly connected to a connecting plate (12).

3. The operating mechanism of a gas-filled cabinet circuit breaker according to claim 1, characterized in that: The heat dissipation assembly comprises a mounting frame (16), the mounting frame (16) is fixedly connected to the top of the inner wall of the circuit breaker housing (2), a heat dissipation fan (17) is rotatably connected inside the mounting frame (16), a power motor (18) is fixedly installed on one side of the mounting frame (16), and an output end of the power motor (18) extends to the inside of the mounting frame (16) and is fixedly connected to the heat dissipation fan (17).

4. The operating mechanism of a gas-filled cabinet circuit breaker according to claim 2, characterized in that: A servo motor (10) is fixedly mounted on the top of the mounting plate (7), and an output end of the servo motor (10) passes through the mounting plate (7) and is fixedly connected to the threaded rod (9).

5. The operating mechanism of a gas-filled cabinet circuit breaker according to claim 1, characterized in that: A slide rail (15) is fixedly connected to one side of the circuit breaker housing (2), a slide rod (14) is fixedly connected to one side of the connection plate (12), and the outer side of the slide rod (14) is slidably connected to the inner wall of the slide rail (15).

6. The operating mechanism of a gas-filled cabinet circuit breaker according to claim 3, characterized in that: An air guide port (19) is provided inside the mounting frame (16), and one side of the air guide port (19) is a sloped structure.

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