Static contact assembly of circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a circuit breaker static contact assembly, which comprises a static contact, a movable assembly and a cleaning assembly are arranged on the surface of the static contact, the cleaning assembly comprises a collecting ring, the collecting ring is fixedly arranged on the surface of the static contact, a rotating shaft is arranged in the collecting ring, and the rotating shaft is connected with the movable assembly. The rotating shaft is rotatably connected to the surface of the static contact, the static contact is slidably connected to the surface of the rotating shaft, the outer side of the rotating shaft is slidably connected with a sliding rod, and the top of the sliding rod is fixedly provided with a telescopic plate. When the threaded sleeve rotates, the movable ring on the surface of the threaded sleeve is driven to slide downwards, the fixed rod is driven to slide downwards when the movable ring slides downwards, and the cleaning ring is driven to slide downwards on the surface of the static contact when the fixed rod slides downwards, so that the surface of the static contact is cleaned, the service life of the static contact is prolonged, and the connecting effect of the static contact is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a static contact assembly of a circuit breaker. Background Art

[0002] The static contact is an important component in electrical equipment. It is a stationary contact that usually works with other contacts (such as moving contacts) to provide a path for current conduction, maintain a fixed position, and ensure good contact with other contacts.

[0003] The existing static contact assembly of the circuit breaker is often set outside when in use, and the static contact assembly of the circuit breaker needs to be cleaned regularly. During the use of the circuit breaker, the static contact assembly will accumulate some dirt and oxides due to the generation of arcs, and the dust in the outside air and the erosion of rainwater will also cause poor contact or increase contact resistance, affecting the normal operation and electrical performance of the circuit breaker. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit breaker static contact assembly to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit breaker static contact assembly, comprising a static contact, wherein a movable assembly and a cleaning assembly are arranged on the surface of the static contact, and when the rotating shaft rotates, the threaded sleeve is driven to rotate, and when the threaded sleeve rotates, the movable ring on the surface of the threaded sleeve is driven to slide downward, and when the movable ring slides downward, the fixed rod is driven to slide downward, and when the fixed rod slides downward, the cleaning ring is also driven to slide downward on the surface of the static contact, and the cleaning assembly comprises:

[0006] A collecting ring, the collecting ring is fixedly mounted on the surface of the static contact, a rotating shaft is arranged inside the collecting ring, the rotating shaft is rotatably connected to the surface of the static contact, the static contact is slidably connected to the surface of the rotating shaft, a sliding rod is slidably connected to the outer side of the rotating shaft, a telescopic plate is fixedly mounted on the top of the sliding rod, and the telescopic plate is fixedly mounted on the bottom of the collecting ring;

[0007] A threaded sleeve, wherein the threaded sleeve is fixed on the surface of the stationary contact, a movable ring is threadedly connected to the surface of the threaded sleeve, a fixing rod is fixedly installed at the bottom of the movable ring, a cleaning ring is fixedly installed at the bottom of the fixing rod, and the cleaning ring is slidably connected to the surface of the stationary contact, thereby cleaning the surface of the stationary contact, thereby improving the service life and connection effect of the stationary contact.

[0008] Preferably, the movable component includes: a connecting plate, the connecting plate is fixedly mounted on the outside of the movable ring, a sliding plate is fixedly mounted on the top of the connecting plate, the sliding plate passes through the collecting ring, and when the movable ring slides downward, it will also drive the connecting plate to slide downward, and when the connecting plate slides downward, it will drive the sliding plate to slide downward inside the collecting ring, so that when the sliding plate slides downward, it will release the restriction on the holes on the surface of the collecting ring, thereby discharging the collected rainwater, thereby improving the practicality and convenience of the static contact.

[0009] Preferably, a groove is provided on the top of the collecting ring, which can drive the sliding plate to slide inside the collecting ring and limit the holes formed in the collecting ring.

[0010] Preferably, holes are provided on the outer side of the collecting ring to discharge the collected rainwater.

[0011] Preferably, an arc groove is provided on the surface of the rotating shaft, and the sliding of the sliding rod can be used to drive the rotation of the rotating shaft.

[0012] Preferably, the cross-sections of the movable ring and the cleaning ring are both circular, which can improve the connectivity between the movable ring and the cleaning ring.

[0013] Preferably, a circular hole is opened on the surface of the cleaning ring, which can improve the cleaning effect of the cleaning ring.

[0014] Compared with the prior art, the utility model provides a circuit breaker static contact assembly having the following

[0015] Beneficial effects:

[0016] 1. The circuit breaker static contact assembly drives the threaded sleeve to rotate when the rotating shaft rotates, and drives the movable ring on the surface of the threaded sleeve to slide downward when the threaded sleeve rotates, and drives the fixed rod to slide downward when the movable ring slides downward, and drives the cleaning ring to slide downward on the surface of the static contact when the fixed rod slides downward, thereby cleaning the surface of the static contact and improving the service life and connection effect of the static contact.

[0017] 2. The static contact assembly of the circuit breaker will also drive the connecting plate to slide downward when the movable ring slides downward, and when the connecting plate slides downward, it will drive the sliding plate to slide downward inside the collecting ring. Therefore, when the sliding plate slides downward, the restriction on the holes on the surface of the collecting ring will be released, so that the collected rainwater can be discharged, thereby improving the practicality and convenience of the static contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front view structure of the cleaning component of the utility model;

[0020] Figure 3 This is a schematic diagram of the front view structure of the active component of the utility model;

[0021] Figure 4 This is a schematic diagram of the front view structure of the rotating shaft of the utility model;

[0022] Figure 5 This is a schematic diagram of the front view structure of the cleaning ring of the utility model;

[0023] Figure 6 This is a schematic diagram of the front view structure of the collecting ring of the utility model.

[0024] In the figure: 1. static contact; 2. cleaning assembly; 21. collecting ring; 22. rotating shaft; 23. sliding rod; 24. telescopic plate; 25. threaded sleeve; 26. movable ring; 27. fixed rod; 28. cleaning ring; 3. movable assembly; 31. connecting plate; 32. sliding plate; 210. groove; 211. hole; 220. arc groove; 280. round hole. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a circuit breaker static contact assembly, including a static contact 1, a movable assembly 3 and a cleaning assembly 2 are arranged on the surface of the static contact 1, when the rotating shaft 22 rotates, it will drive the rotation of the threaded sleeve 25, when the threaded sleeve 25 rotates, it will drive the movable ring 26 on the surface of the threaded sleeve 25 to slide downward, when the movable ring 26 slides downward, it will drive the fixed rod 27 to slide downward, when the fixed rod 27 slides downward, it will also drive the cleaning ring 28 to slide downward on the surface of the static contact 1, and the cleaning assembly 2 includes: a collecting ring 21, a rotating shaft 22, a sliding rod 23, a telescopic plate 24, a threaded sleeve 25, a movable ring 26, a fixed rod 27, and a cleaning ring 28.

[0026] The collecting ring 21 is fixedly mounted on the surface of the static contact 1, a rotating shaft 22 is arranged inside the collecting ring 21, the rotating shaft 22 is rotatably connected to the surface of the static contact 1, the static contact 1 is slidably connected to the surface of the rotating shaft 22, a sliding rod 23 is slidably connected to the outer side of the rotating shaft 22, a telescopic plate 24 is fixedly mounted on the top of the sliding rod 23, the telescopic plate 24 is fixedly mounted on the bottom of the collecting ring 21, a threaded sleeve 25 is fixed on the surface of the static contact 1, a movable ring 26 is threadedly connected on the surface of the threaded sleeve 25, a fixing rod 27 is fixedly mounted on the bottom of the movable ring 26, a cleaning ring 28 is fixedly mounted on the bottom of the fixing rod 27, the cleaning ring 28 is slidably connected to the surface of the static contact 1, thereby cleaning the surface of the static contact 1 and improving the service life and connection effect of the static contact 1.

[0027] The movable assembly 3 includes: a connecting plate 31, the connecting plate 31 is fixedly mounted on the outer side of the movable ring 26, a sliding plate 32 is fixedly mounted on the top of the connecting plate 31, and the sliding plate 32 penetrates the collecting ring 21. When the movable ring 26 slides downward, it also drives the connecting plate 31 to slide downward. When the connecting plate 31 slides downward, it drives the sliding plate 32 to slide downward inside the collecting ring 21. Therefore, when the sliding plate 32 slides downward, the restriction on the holes 211 on the surface of the collecting ring 21 is released, so that the collected rainwater is discharged, thereby improving the practicality and convenience of the static contact 1, and collecting A groove 210 is provided on the top of the ring 21, which can drive the sliding plate 32 to slide inside the collecting ring 21 and limit the hole 211 provided in the collecting ring 21. A hole 211 is provided on the outside of the collecting ring 21 to discharge the collected rainwater. An arc groove 220 is provided on the surface of the rotating shaft 22, and the sliding of the sliding rod 23 can drive the rotation of the rotating shaft 22. The cross-sections of the movable ring 26 and the cleaning ring 28 are both circular, which can improve the connectivity between the movable ring 26 and the cleaning ring 28. A circular hole 280 is provided on the surface of the cleaning ring 28 to improve the cleaning effect of the cleaning ring 28.

[0028] When the static contact 1 is in use, it can contact with the moving contact to form a conducting path, allowing current to pass through, and maintain a fixed position, providing a stable contact interface, and ensuring smooth transmission of current. When the static contact 1 works outside for a long time, or is eroded by rain, the collecting ring 21 will collect rainwater. When the rainwater is collected, it will slide downward against the sliding rod 23 by gravity. When the sliding rod 23 slides downward, it will drive the extension plate 24, so that when the sliding rod 23 slides downward, it will also slide inside the arc groove 220 opened on the surface of the rotating shaft 22, thereby driving the rotation of the rotating shaft 22. When the rotating shaft 22 rotates, it will drive the rotation of the threaded sleeve 25. When the threaded sleeve 25 rotates, it will drive the movable ring 26 on the surface of the threaded sleeve 25 to slide downward. When the movable ring 26 slides downward, it will drive the fixed rod 27 to slide downward. When the fixed rod 27 slides downward, it will also drive the cleaning ring 28 to slide downward on the surface of the static contact 1, thereby cleaning the surface of the static contact 1, thereby improving the service life and connection effect of the static contact 1.

[0029] When the movable ring 26 slides downward, it will also drive the connecting plate 31 to slide downward. When the connecting plate 31 slides downward, it will drive the sliding plate 32 to slide downward inside the collecting ring 21. Therefore, when the sliding plate 32 slides downward, the restriction on the holes 211 on the surface of the collecting ring 21 will be released, so that the collected rainwater can be discharged, thereby improving the practicality and convenience of the static contact 1.

[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A circuit breaker static contact assembly, comprising a static contact (1), characterized in that: The surface of the stationary contact (1) is provided with a movable component (3) and a cleaning component (2), and the cleaning component (2) comprises: A collecting ring (21), the collecting ring (21) is fixedly mounted on the surface of the stationary contact (1), a rotating shaft (22) is arranged inside the collecting ring (21), the rotating shaft (22) is rotatably connected to the surface of the stationary contact (1), the stationary contact (1) is slidably connected to the surface of the rotating shaft (22), a sliding rod (23) is slidably connected to the outer side of the rotating shaft (22), a telescopic plate (24) is fixedly mounted on the top of the sliding rod (23), and the telescopic plate (24) is fixedly mounted on the bottom of the collecting ring (21); A threaded sleeve (25) is fixed on the surface of the stationary contact (1); a movable ring (26) is threadedly connected to the surface of the threaded sleeve (25); a fixing rod (27) is fixedly installed at the bottom of the movable ring (26); a cleaning ring (28) is fixedly installed at the bottom of the fixing rod (27); and the cleaning ring (28) is slidably connected to the surface of the stationary contact (1).

2. A circuit breaker static contact assembly according to claim 1, characterized in that: The movable assembly (3) comprises: a connecting plate (31), the connecting plate (31) is fixedly mounted on the outside of the movable ring (26), a sliding plate (32) is fixedly mounted on the top of the connecting plate (31), and the sliding plate (32) passes through the collecting ring (21).

3. A circuit breaker static contact assembly according to claim 1, characterized in that: The top of the collecting ring (21) is provided with a groove (210).

4. A circuit breaker static contact assembly according to claim 1, characterized in that: The outer side of the collecting ring (21) is provided with a hole (211).

5. A circuit breaker static contact assembly according to claim 1, characterized in that: An arc-shaped groove (220) is formed on the surface of the rotating shaft (22).

6. A circuit breaker static contact assembly according to claim 1, characterized in that: The movable ring (26) and the cleaning ring (28) are both circular in cross section.

7. A circuit breaker static contact assembly according to claim 1, characterized in that: A circular hole (280) is formed on the surface of the cleaning ring (28).

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