Intelligent circuit breaker

Abstract

The invention relates to the technical field of circuit breakers, and discloses an intelligent circuit breaker which is characterized in that the intelligent circuit breaker comprises a shell, a rotating shaft, a lever and an arc chute are arranged in an inner cavity of the shell, and the lever is rotationally connected into the shell through the rotating shaft; and the cleaning assembly is arranged on the rear side of the inner cavity of the shell and comprises a first gear, the rear side of the rotating shaft is fixedly sleeved with the first gear, the outer side of the first gear is meshed with a second gear, and the rear side of the second gear is connected with a ratchet mechanism. According to the intelligent circuit breaker, the second gear and the cam are connected through the banister brush, the ratchet, the ratchet wheel body and the connecting shaft, the cam can be driven to rotate only when the circuit breaker is switched on, and the second gear drives the banister brush to rotate along the outer side of the ratchet wheel body and does not drive the cam to rotate when the circuit breaker is switched off, so that the banister brush is kept in an original state; and arc extinguishing of the arc chute is prevented from being influenced by movement of the banister brush.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and particularly to an intelligent circuit breaker. Background Art

[0002] An intelligent circuit breaker is an intelligent power control device integrating modern electronic information technology, communication technology and traditional circuit breaker technology. It can not only achieve the basic functions of traditional circuit breakers, such as overload protection, short-circuit protection, etc., but also has intelligent features such as remote monitoring, data analysis, fault diagnosis and automatic power supply restoration.

[0003] The arc extinguishing grid in an intelligent circuit breaker is usually composed of metal materials (such as copper, aluminum, etc.) and insulating materials (such as ceramics or plastics). During use, dust, dirt and oxides will accumulate. The accumulated dust, dirt and oxides will hinder air flow and reduce the heat dissipation and arc extinguishing effect of the arc extinguishing grid. This will reduce the extinguishing efficiency of the arc, lead to an extended arc duration, and may even cause equipment damage. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent circuit breaker to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An intelligent circuit breaker, characterized in that it includes: A housing, in the inner cavity of which a rotating shaft, a lever and an arc extinguishing grid are respectively provided, and the lever is rotatably connected in the housing by means of the rotating shaft; A cleaning assembly, arranged at the rear side of the inner cavity of the housing. The cleaning assembly includes a first gear, a first gear is fixedly sleeved on the rear side of the rotating shaft, a second gear is meshed on the outside of the first gear, a ratchet mechanism is connected to the rear side of the second gear, a cam is arranged at the rear side of the ratchet mechanism, an activity groove is opened at the rear side of the cam, a cylinder is movably connected in the inner cavity of the activity groove, a connecting plate is connected to the rear side of the cylinder, a cross plate is fixedly installed on the top of the connecting plate, a moving plate is connected in the inner cavity of the cross plate by means of a connecting component, and a soft brush that fits the side of the arc extinguishing grid is connected to the bottom of the moving plate.

[0006] As a further improvement of the present invention, the ratchet mechanism includes a circular shell, ratchet teeth, a ratchet body and a connecting shaft. A circular shell is fixedly installed on the rear side of the second gear, ratchet teeth are provided on the inner wall of the circular shell, a connecting shaft is rotatably connected to the rear side of the second gear, and a ratchet body connected to the ratchet teeth is fixedly sleeved on the outside of the connecting shaft.

[0007] As a further improvement of the present invention, the second gear is rotatably connected to the inner wall of the housing by means of a shaft, and the diameter value of the first gear is greater than the diameter value of the second gear.

[0008] As a further improvement of the present invention, soft brushes and moving plates are provided on both sides of the arc extinguishing grid. The connecting component includes a strip plate and a square frame. A square frame is fixedly installed between the upper parts of the two moving plates, and a strip plate located in the inner cavity of the square frame is fixedly installed in the inner cavity of the cross plate.

[0009] As a further improvement of the present invention, a loosening display component is provided on the top of the moving plate. The loosening display component includes a square groove, an auxiliary plate, a first indicating strip and a second indicating strip. A square groove is opened at the top of the housing. An auxiliary plate located in the inner cavity of the square groove is fixedly installed on the top of the moving plate. A first indicating strip is provided on the top of the auxiliary plate, and a second indicating strip aligned with the first indicating strip is provided on the top of the housing.

[0010] As a further improvement of the present invention, the loosening display component further includes a moving block and a moving groove. A moving groove is opened on the side of the arc extinguishing grid, and a moving block located in the inner cavity of the moving groove is fixedly installed on one side of the soft brush.

[0011] As a further improvement of the present invention, the cross section of the moving groove is in a convex shape, and the moving block is adapted to the shape of the moving groove.

[0012] As a further improvement of the present invention, a corrugated plate is fixedly installed on the side of the auxiliary plate, and the side of the corrugated plate is attached to the inner wall of the square groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: For this intelligent circuit breaker, the second gear and the cam are connected by a soft brush, a ratchet tooth, a ratchet body and a connecting shaft. Only when the circuit breaker is closed can the cam be driven to rotate. When the circuit breaker is opened, the second gear drives the soft brush to rotate along the outside of the ratchet body without driving the cam to rotate, so that the soft brush remains in its original state. Since an electric arc will be generated when the circuit breaker is opened, it is avoided that the movement of the soft brush affects the arc extinguishing of the arc extinguishing grid.

[0014] For this intelligent circuit breaker, a loosening display component is provided on the top of the moving plate. When the arc extinguishing grid loosens and moves relatively, the movement of the arc extinguishing grid can drive the soft brush, the moving plate and the auxiliary plate to move along the outside of the strip plate, resulting in a relative offset in the positions between the first indicating strip and the second indicating strip. By observing the positions between the first indicating strip and the second indicating strip, the user can know whether the arc extinguishing grid is loose, so as to repair the arc extinguishing grid in time. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall internal structure of an intelligent circuit breaker of the present invention; Figure 2 It is a schematic diagram of the overall rear structure of an intelligent circuit breaker of the present invention; Figure 3 It is an intelligent circuit breaker of the present invention Figure 2 Enlarged view of A therein; Figure 4 It is an intelligent circuit breaker of the present invention Figure 2 Enlarged view of B therein; Figure 5 It is a schematic diagram of the second gear structure of an intelligent circuit breaker of the present invention; Figure 6 It is a schematic diagram of the internal structure of the circular shell of an intelligent circuit breaker of the present invention; Figure 7 It is a schematic diagram of the strip board structure of an intelligent circuit breaker of the present invention; Figure 8 It is a schematic diagram of the moving groove structure of an intelligent circuit breaker of the present invention.

[0017] In the figure: 1. Outer shell; 2. Rotating shaft; 3. Lever; 4. Cleaning component; 401. First gear; 402. Second gear; 403. Ratchet teeth; 404. Ratchet body; 405. Connecting shaft; 406. Cam; 407. Moving groove; 408. Cylinder; 409. Connecting plate; 410. Cross plate; 411. Strip board; 412. Square frame; 413. Moving plate; 414. Soft brush; 415. Circular shell; 5. Arc extinguishing grid; 6. Looseness display component; 601. Square groove; 602. Auxiliary plate; 603. First indicating strip; 604. Second indicating strip; 605. Moving groove; 606. Moving block; 7. Corrugated plate. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0019] Please refer to Figures 1-8, the present invention provides an intelligent circuit breaker, including: A housing 1, in the inner cavity of the housing 1, a rotating shaft 2, a lever 3 and an arc extinguishing grid 5 are respectively provided, and the lever 3 is rotatably connected in the housing 1 by the rotating shaft 2; A cleaning component 4, arranged at the rear side of the inner cavity of the housing 1. The cleaning component 4 includes a first gear 401. A first gear 401 is fixedly sleeved on the rear side of the rotating shaft 2. A second gear 402 is meshed with the outside of the first gear 401. A ratchet mechanism is connected to the rear side of the second gear 402. A cam 406 is arranged at the rear side of the ratchet mechanism. An activity groove 407 is opened at the rear side of the cam 406. A cylinder 408 is movably connected in the inner cavity of the activity groove 407. A connecting plate 409 is connected to the rear side of the cylinder 408. A cross plate 410 is fixedly installed at the top of the connecting plate 409. A moving plate 413 is connected in the inner cavity of the cross plate 410 by a connecting component. A soft brush 414 that fits the side of the arc extinguishing grid 5 is connected to the bottom of the moving plate 413. By arranging the cleaning component 4 at the rear side of the rotating shaft 2, when the circuit breaker is in the closed state, the lever 3 drives the rotating shaft 2 to rotate clockwise. Since the first gear 401 is arranged at the rear side of the rotating shaft 2 and the first gear 401 is meshed and connected with the second gear 402, the second gear 402 and the ratchet mechanism are driven to rotate, and then the cam 406 is driven to rotate. By using the shape characteristics of the cam 406, the cam 406 is connected with the soft brush 414 through the cylinder 408, the connecting plate 409, the cross plate 410, the moving plate 413. When the cam 406 rotates, the soft brush 414 can be driven to move up and down reciprocally outside the arc extinguishing grid 5, which is convenient for cleaning the dust stained on the arc extinguishing grid 5.

[0020] The ratchet mechanism includes a circular shell 415, ratchet teeth 403, a ratchet body 404 and a connecting shaft 405. A circular shell 415 is fixedly installed at the rear side of the second gear 402. Ratchet teeth 403 are arranged on the inner wall of the circular shell 415. A connecting shaft 405 is rotatably connected to the rear side of the second gear 402. A ratchet body 404 connected with the ratchet teeth 403 is fixedly sleeved on the outside of the connecting shaft 405. By connecting the second gear 402 and the cam 406 through the soft brush 414, the ratchet teeth 403, the ratchet body 404 and the connecting shaft 405, the cam 406 can be driven to rotate only when the circuit breaker is closed. When the circuit breaker is opened, the second gear 402 drives the soft brush 414 to rotate along the outside of the ratchet body 404, and the cam 406 is not driven to rotate, so that the soft brush 414 remains in its original state. Since an arc will be generated when the circuit breaker is opened, the movement of the soft brush 414 is avoided from affecting the arc extinguishing of the arc extinguishing grid 5.

[0021] The second gear 402 is rotatably connected to the inner wall of the housing 1 by a shaft, and the diameter value of the first gear 401 is greater than the diameter value of the second gear 402. Since the diameter value of the first gear 401 is greater than the diameter value of the second gear 402, when the circuit breaker is closed, the rotation shaft 2 can be driven to rotate a certain angle and then drive the cam 406 to reciprocate. When the first gear 401 stops rotating, the cam 406 can reciprocate and reset to facilitate the next cleaning.

[0022] Soft brushes 414 and moving plates 413 are provided on both sides of the arc extinguishing grid 5. The connecting component includes a strip plate 411 and a square frame 412. A square frame 412 is fixedly installed between the upper parts of the two moving plates 413, and a strip plate 411 located in the inner cavity of the square frame 412 is fixedly installed in the inner cavity of the cross plate 410. Since soft brushes 414 and moving plates 413 are provided on both sides of the arc extinguishing grid 5, it is convenient to clean the dust on both sides of the arc extinguishing grid 5, and at the same time, the moving ranges of the moving plates 413 and the soft brushes 414 are limited.

[0023] A loosening display component 6 is provided on the top of the moving plate 413. The loosening display component 6 includes a square groove 601, an auxiliary plate 602, a first indicating strip 603 and a second indicating strip 604. A square groove 601 is opened on the top of the housing 1, and an auxiliary plate 602 located in the inner cavity of the square groove 601 is fixedly installed on the top of the moving plate 413. A first indicating strip 603 is provided on the top of the auxiliary plate 602, and a second indicating strip 604 aligned with the first indicating strip 603 is provided on the top of the housing 1. Since a loosening display component 6 is provided on the top of the moving plate 413, when the arc extinguishing grid 5 loosens and generates relative movement, the movement of the arc extinguishing grid 5 can drive the soft brush 414, the moving plate 413 and the auxiliary plate 602 to move along the outside of the strip plate 411, resulting in a relative offset in the positions between the first indicating strip 603 and the second indicating strip 604. By observing the positions between the first indicating strip 603 and the second indicating strip 604, the user can know whether the arc extinguishing grid 5 is loose, so as to repair the arc extinguishing grid 5 in time.

[0024] The loosening display component 6 further includes a moving block 606 and a moving groove 605. A moving groove 605 is opened on the side of the arc extinguishing grid 5, and a moving block 606 located in the inner cavity of the moving groove 605 is fixedly installed on one side of the soft brush 414.

[0025] The cross section of the moving groove 605 is in a convex shape, and the moving block 606 is adapted to the shape of the moving groove 605. Since the arc extinguishing grid 5 is connected to the soft brush 414 by using the moving groove 605 and the moving block 606, it provides stability for the soft brush 414 to move up and down on the side of the arc extinguishing grid 5, and at the same time, it can also ensure that the soft brush 414 can be stably driven to move when the arc extinguishing grid 5 loosens.

[0026] On the side of the auxiliary plate 602, a corrugated plate 7 is fixedly installed, and the side of the corrugated plate 7 is attached to the inner wall of the square groove 601. By providing the corrugated plate 7 on the auxiliary plate 602, while ensuring that the auxiliary plate 602 can move, the space where the redundant square groove 601 contacts the outside can be blocked, ensuring the overall sealing performance.

[0027] This intelligent circuit breaker not only includes components such as a contact system, an arc extinguishing system, an operating mechanism, and a release, but also includes a sensor, a microprocessor, a communication module, an actuator, and a protection device, etc. The intelligent circuit breaker uses the built-in sensor to monitor parameters such as current, voltage, power, and temperature in the circuit in real time, and transmits this data to the microprocessor for analysis and processing. When the microprocessor detects an abnormal situation, it will issue a control signal according to the preset protection logic to drive the actuator to act, realizing the protection of the circuit.

[0028] Working principle: When using this device, when the circuit breaker is in the closed state, a cleaning component 4 is provided at the rear of the rotating shaft 2. The lever 3 drives the rotating shaft 2 to rotate clockwise. Since a first gear 401 is provided at the rear of the rotating shaft 2, the first gear 401 and the second gear 402 are meshed and connected, thereby driving the circular shell 415 and the ratchet tooth 403 to rotate. The ratchet tooth 403 can drive the ratchet body 404 and the connecting shaft 405 to rotate, thereby driving the cam 406 to rotate. Utilizing the shape characteristics of the cam 406, the cam 406 is connected to the soft brush 414 through the cylinder 408, the connecting plate 409, the cross plate 410, the moving plate 413. When the cam 406 rotates, it can drive the soft brush 414 to reciprocate up and down outside the arc extinguishing grid 5, cleaning the dust adhered to the arc extinguishing grid 5. When opening the switch, the lever 3 drives the rotating shaft 2 to rotate counterclockwise, which can drive the circular shell 415 and the ratchet tooth 403 to rotate. However, since the ratchet tooth 403 and the cam 406 are connected by the ratchet tooth 403 and the ratchet body 404, the ratchet tooth 403 and the circular shell 415 rotate along the outside of the ratchet body 404, and do not drive the ratchet body 404 to rotate; By providing a looseness display component 6 at the top of the moving plate 413, when the arc extinguishing grid 5 loosens and generates relative movement, the movement of the arc extinguishing grid 5 can drive the soft brush 414, the moving plate 413, and the auxiliary plate 602 to move along the outside of the strip plate 411, resulting in a relative offset in the position between the first indicating strip 603 and the second indicating strip 604. The user can know whether the arc extinguishing grid 5 is loose by observing the position between the first indicating strip 603 and the second indicating strip 604, so as to repair the arc extinguishing grid 5 in time.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent circuit breaker, characterized in that, Including: A housing, a rotating shaft, a lever and an arc extinguishing grid are respectively arranged in the inner cavity of the housing, and the lever is rotatably connected in the housing by using the rotating shaft; A cleaning component is arranged at the rear side of the inner cavity of the housing. The cleaning component includes a first gear. The first gear is fixedly sleeved at the rear side of the rotating shaft. A second gear is meshed outside the first gear. A ratchet mechanism is connected to the rear side of the second gear. A cam is arranged at the rear side of the ratchet mechanism. An activity groove is formed in the rear side of the cam. A cylinder is movably connected in the inner cavity of the activity groove. A connecting plate is connected to the rear side of the cylinder. A cross plate is fixedly installed at the top of the connecting plate. A moving plate is connected in the inner cavity of the cross plate by using a connecting component. A soft brush that fits the side surface of the arc extinguishing grid is connected to the bottom of the moving plate.

2. The intelligent circuit breaker according to claim 1, wherein The ratchet mechanism includes a circular shell, ratchet teeth, a ratchet body and a connecting shaft. The circular shell is fixedly installed at the rear side of the second gear. The ratchet teeth are arranged on the inner wall of the circular shell. The connecting shaft is rotatably connected to the rear side of the second gear. The ratchet body connected to the ratchet teeth is fixedly sleeved outside the connecting shaft.

3. An intelligent circuit breaker according to claim 1, characterized in that, The second gear is rotatably connected to the inner wall of the housing by using a shaft. The diameter value of the first gear is greater than the diameter value of the second gear.

4. An intelligent circuit breaker according to claim 1, characterized in that, Soft brushes and moving plates are arranged on both sides of the arc extinguishing grid. The connecting component includes a strip plate and a square frame. The square frame is fixedly installed between the upper parts of the two moving plates. The strip plate located in the inner cavity of the square frame is fixedly installed in the inner cavity of the cross plate.

5. An intelligent circuit breaker according to claim 1, characterized in that, A loosening display component is arranged at the top of the moving plate. The loosening display component includes a square groove, an auxiliary plate, a first indicating strip and a second indicating strip. The square groove is formed in the top of the housing. The auxiliary plate located in the inner cavity of the square groove is fixedly installed at the top of the moving plate. The first indicating strip is arranged at the top of the auxiliary plate. The second indicating strip aligned with the first indicating strip is arranged at the top of the housing.

6. An intelligent circuit breaker according to claim 5, characterized in that, The loosening display component further includes a moving block and a moving groove. The moving groove is formed in the side surface of the arc extinguishing grid. The moving block located in the inner cavity of the moving groove is fixedly installed on one side of the soft brush.

7. An intelligent circuit breaker according to claim 6, characterized in that, The cross section of the moving groove is in a convex character shape, and the moving block is adapted to the shape of the moving groove.

8. An intelligent circuit breaker according to claim 5, characterized in that, The corrugated plate is fixedly installed on the side surface of the auxiliary plate, and the side surface of the corrugated plate is attached to the inner wall of the square groove.

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