An intelligent circuit breaker

Abstract

The present invention relates to the technical field of circuit breakers, and discloses an intelligent circuit breaker, characterized in that it comprises: a housing, an inner cavity of the housing being respectively provided with a rotating shaft, a lever, and an arc extinguishing grid, the lever being rotatably connected to the housing via the rotating shaft; and a cleaning assembly disposed on the rear side of the inner cavity of the housing, the cleaning assembly comprising a first gear, the rear side of the rotating shaft being fixedly sleeved with the first gear, the outer side of the first gear being meshed with a second gear, and the rear side of the second gear being connected to a ratchet mechanism. The intelligent circuit breaker is connected to a cam via a soft brush, ratchet teeth, a ratchet body, and a connecting shaft between the second gear and the cam. The cam can only be driven to rotate when the circuit breaker is closed. When the circuit breaker is opened, the second gear rotates with the soft brush along the outer side of the ratchet body without driving the cam to rotate, thereby maintaining the soft brush in its original state. Since an arc is generated when the circuit breaker is opened, the movement of the soft brush is prevented from affecting the arc extinguishing of the arc extinguishing grid.

Description

Technical Field

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

[0002] Smart circuit breakers are intelligent power control devices that integrate modern electronic information technology, communications technology, and traditional circuit breaker technology. They not only provide the basic functions of traditional circuit breakers, such as overload protection and short-circuit protection, but also offer intelligent features such as remote monitoring, data analysis, fault diagnosis, and automatic power restoration.

[0003] The arc chute within a smart circuit breaker is typically composed of metal materials (such as copper and aluminum) and insulating materials (such as ceramic or plastic). During use, dust, dirt, and oxides accumulate. This accumulated dust, dirt, and oxides can obstruct air flow, reducing the arc chute's heat dissipation and arc extinguishing effectiveness. This can reduce arc extinguishing efficiency, prolong arc duration, and even cause equipment damage. Summary of the Invention

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

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent circuit breaker, characterized in that it comprises:

[0006] A housing, wherein an inner cavity of the housing is provided with a rotating shaft, a lever and an arc extinguishing grid, and the lever is rotatably connected to the housing via the rotating shaft;

[0007] A cleaning assembly is arranged on the rear side of the inner cavity of the shell, and the cleaning assembly includes 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, the rear side of the second gear is connected to a ratchet mechanism, the rear side of the ratchet mechanism is provided with a cam, the rear side of the cam is provided with a movable groove, the inner cavity of the movable groove is movably connected with a cylinder, the rear side of the cylinder is connected to a connecting plate, the top of the connecting plate is fixedly installed with a horizontal plate, the inner cavity of the horizontal plate is connected to a movable plate by a connecting assembly, and the bottom of the movable plate is connected to a soft brush that fits the side of the arc extinguishing grid.

[0008] As a further improvement of the present invention, the ratchet mechanism includes a circular shell, ratchet teeth, a ratchet body and a connecting shaft. The circular shell is fixedly installed on the rear side of the second gear, and the inner wall of the circular shell is provided with ratchet teeth. The rear side of the second gear is rotatably connected to the connecting shaft, and the outer side of the connecting shaft is fixedly sleeved with a ratchet body connected to the ratchet teeth.

[0009] As a further improvement of the present invention, the second gear is rotatably connected to the inner wall of the housing by a shaft, and the diameter of the first gear is greater than the diameter of the second gear.

[0010] As a further improvement of the present invention, soft brushes and movable plates are provided on both sides of the arc extinguishing grid, the connecting assembly includes a strip plate and a square frame, a square frame is fixedly installed between the upper parts of the two movable plates, and the inner cavity of the horizontal plate is fixedly installed with a strip plate located in the inner cavity of the square frame.

[0011] As a further improvement of the present invention, a loose display component is provided on the top of the movable plate, and the loose display component includes a square groove, an auxiliary plate, a first indicator bar and a second indicator bar. A square groove is opened on the top of the outer shell, and an auxiliary plate located in the inner cavity of the square groove is fixedly installed on the top of the movable plate. A first indicator bar is provided on the top of the auxiliary plate, and a second indicator bar is provided on the top of the outer shell to be aligned with the first indicator bar.

[0012] As a further improvement of the present invention, the loose display component further includes a moving block and a moving groove, the moving groove is provided 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.

[0013] As a further improvement of the present invention, the cross section of the movable groove is in a convex shape, and the movable block is adapted to the shape of the movable groove.

[0014] As a further improvement of the present invention, a corrugated plate is fixedly mounted on the side surface of the auxiliary plate, and the side surface of the corrugated plate is in contact with the inner wall of the square groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The intelligent circuit breaker is connected between the second gear and the cam by a circular shell, ratchet teeth, ratchet body and connecting shaft. The cam can be driven to rotate only when the circuit breaker is closed. When the circuit breaker is opened, the second gear drives the soft brush to rotate along the outer side of the ratchet body without driving the cam to rotate, so that the soft brush remains in its original shape. Since an arc is generated when the circuit breaker is opened, the movement of the soft brush is prevented from affecting the arc extinguishing of the arc extinguishing grid.

[0017] This intelligent circuit breaker is equipped with a looseness display component on the top of the movable plate. When the arc chute is loose and moves relative to the arc chute, the arc chute movement can drive the soft brush, the movable plate and the auxiliary plate to move along the outer side of the strip plate, thereby causing a relative position offset between the first indicator bar and the second indicator bar. By observing the position between the first indicator bar and the second indicator bar, the user can know whether the arc chute is loose, so as to facilitate timely maintenance of the arc chute. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of the overall internal structure of an intelligent circuit breaker of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall rear structure of an intelligent circuit breaker of the present invention;

[0021] Figure 3 An intelligent circuit breaker of the present invention Figure 2 Middle A enlarged view;

[0022] Figure 4 An intelligent circuit breaker of the present invention Figure 2 Middle B: Enlarged image;

[0023] Figure 5 This is a schematic diagram of the second gear structure of an intelligent circuit breaker according to the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of a circular shell of an intelligent circuit breaker of the present invention;

[0025] Figure 7 This is a schematic diagram of the strip plate structure of an intelligent circuit breaker of the present invention;

[0026] Figure 8 This is a schematic diagram of the movable slot structure of an intelligent circuit breaker according to the present invention.

[0027] In the figure: 1. outer shell; 2. rotating shaft; 3. lever; 4. cleaning assembly; 401. first gear; 402. second gear; 403. ratchet; 404. ratchet body; 405. connecting shaft; 406. cam; 407. movable groove; 408. cylinder; 409. connecting plate; 410. horizontal plate; 411. strip plate; 412. square frame; 413. movable plate; 414. soft brush; 415. round shell; 5. arc extinguishing grid; 6. loose display assembly; 601. square groove; 602. auxiliary plate; 603. first indicator bar; 604. second indicator bar; 605. movable groove; 606. movable block; 7. corrugated plate. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-8 The present invention provides an intelligent circuit breaker, comprising:

[0030] The housing 1 has a rotating shaft 2, a lever 3 and an arc extinguishing grid 5 provided in the inner cavity of the housing 1. The lever 3 is rotatably connected to the housing 1 by the rotating shaft 2.

[0031] The cleaning component 4 is arranged on the rear side of the inner cavity of the shell 1. The cleaning component 4 includes a first gear 401. The first gear 401 is fixedly sleeved on the rear side of the rotating shaft 2. The outer side of the first gear 401 is meshed with a second gear 402. The rear side of the second gear 402 is connected to a ratchet mechanism. A cam 406 is provided on the rear side of the ratchet mechanism. A movable groove 407 is provided on the rear side of the cam 406. The inner cavity of the movable groove 407 is movably connected to a cylinder 408. The rear side of the cylinder 408 is connected to a connecting plate 409. A horizontal plate 410 is fixedly installed on the top of the connecting plate 409. The inner cavity of the horizontal plate 410 is connected to a movable plate 413 by a connecting component. The bottom of the movable plate 413 is connected to a soft brush 414 that fits the side of the arc extinguishing grid 5. A cleaning assembly 4 is provided on 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 a first gear 401 is provided on the rear side of the rotating shaft 2, the first gear 401 and the second gear 402 are meshed and connected, thereby driving the second gear 402 and the ratchet mechanism 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 transverse plate 410, and the movable plate 413. When the cam 406 rotates, it can drive the soft brush 414 to move back and forth up and down on the outside of the arc chute 5, thereby facilitating the cleaning of dust on the arc chute 5.

[0032] The ratchet mechanism includes a circular housing 415, ratchet teeth 403, a ratchet body 404, and a connecting shaft 405. The circular housing 415 is fixedly mounted on the rear side of the second gear 402, and ratchet teeth 403 are provided on its inner wall. The connecting shaft 405 is rotatably connected to the rear side of the second gear 402. The ratchet body 404, which is connected to the ratchet teeth 403, is fixedly sleeved on the outer side of the connecting shaft 405. The second gear 402 and the cam 406 are connected via the circular housing 415, ratchet teeth 403, ratchet body 404, and connecting shaft 405. The cam 406 rotates only when the circuit breaker is closed. When the circuit breaker is opened, the second gear 402 rotates along the outer side of the ratchet body 404 with the circular housing 415, without rotating the cam 406. This allows the soft brush 414 to remain in its original position. Since an arc is generated when the circuit breaker is opened, this prevents the movement of the soft brush 414 from affecting the arc extinguishing of the arc chute 5.

[0033] The second gear 402 is rotatably connected to the inner wall of the housing 1 via a shaft. The diameter of the first gear 401 is larger than that of the second gear 402. This allows the rotating shaft 2 to rotate a certain angle when the circuit breaker is closed, which in turn drives the cam 406 to reciprocate. When the first gear 401 stops rotating, the cam 406 can reciprocate and reset, facilitating cleaning the next time.

[0034] Soft brushes 414 and movable plates 413 are located on both sides of the arc chute 5. The connecting assembly includes strips 411 and a square frame 412. The square frame 412 is fixedly mounted between the upper portions of the two movable plates 413. The strips 411, located within the inner cavity of the square frame 412, are fixedly mounted within the inner cavity of the cross plate 410. The provision of soft brushes 414 and movable plates 413 on both sides of the arc chute 5 facilitates dust removal from both sides of the arc chute 5 while limiting the range of movement of the movable plates 413 and soft brushes 414.

[0035] A looseness indicator assembly 6 is provided on the top of the movable plate 413. The looseness indicator assembly 6 includes a square slot 601, an auxiliary plate 602, a first indicator bar 603, and a second indicator bar 604. The square slot 601 is provided on the top of the housing 1. The auxiliary plate 602 is fixedly mounted on the top of the movable plate 413 and positioned within the inner cavity of the square slot 601. The first indicator bar 603 is provided on the top of the auxiliary plate 602. The second indicator bar 604 is aligned with the first indicator bar 603. Due to the looseness indicator assembly 6 provided on the top of the movable plate 413, when the arc chute 5 becomes loose and moves relative to the arc chute 5, the movement of the arc chute 5 can drive the soft brush 414, the movable plate 413, and the auxiliary plate 602 to move along the outer side of the strip plate 411, thereby causing a relative offset between the first indicator bar 603 and the second indicator bar 604. By observing the position between the first indicator bar 603 and the second indicator bar 604, the user can determine whether the arc chute 5 is loose, thereby facilitating timely maintenance of the arc chute 5.

[0036] The looseness display assembly 6 further includes a moving block 606 and a moving groove 605 . The moving groove 605 is provided on the side of the arc extinguishing grid 5 . The moving block 606 located in the inner cavity of the moving groove 605 is fixedly mounted on one side of the soft brush 414 .

[0037] The cross-section of the movable groove 605 is convex, and the movable block 606 matches the shape of the movable groove 605. The arc chute 5 is connected to the soft brush 414 via the movable groove 605 and the movable block 606, providing stability for the soft brush 414 to move up and down along the side of the arc chute 5. It also ensures that the soft brush 414 can be stably driven to move when the arc chute 5 is loose.

[0038] A corrugated plate 7 is fixedly mounted on the side of the auxiliary plate 602, and the side of the corrugated plate 7 is in contact with the inner wall of the square groove 601. The corrugated plate 7 on the auxiliary plate 602 can block the excess space of the square groove 601 from the outside while ensuring the movement of the auxiliary plate 602, thus ensuring the overall sealing.

[0039] This intelligent circuit breaker includes not only components such as the contact system, arc extinguishing system, operating mechanism, and trip unit, but also sensors, a microprocessor, a communication module, actuators, and protective devices. The intelligent circuit breaker uses built-in sensors to monitor circuit parameters such as current, voltage, power, and temperature in real time, transmitting this data to the microprocessor for analysis and processing. When the microprocessor detects an abnormality, it issues a control signal based on pre-set protection logic, driving the actuator to operate and protect the circuit.

[0040] Working principle: When using this device, when the circuit breaker is in the closed state, the cleaning component 4 is provided on the rear side of the rotating shaft 2, and the lever 3 drives the rotating shaft 2 to rotate clockwise. Since the first gear 401 is provided on the rear side of the rotating shaft 2, the first gear 401 and the second gear 402 are engaged and connected, thereby driving the round shell 415 and the ratchet 403 to rotate. The ratchet 403 can drive the ratchet body 404 and the connecting shaft 405 to rotate, thereby driving the cam 406 to rotate. The shape characteristics of the cam 406 are used to rotate the cylinder 408 and the connecting plate 409 through the cam 406. , the horizontal plate 410, the movable plate 413 are connected to the soft brush 414. When the cam 406 rotates, the soft brush 414 can be driven to move back and forth on the outside of the arc chute 5 to clean the dust on the arc chute 5. When the gate is opened, the lever 3 drives the rotating shaft 2 to rotate counterclockwise, which can drive the circular shell 415 and the ratchet 403 to rotate. However, since the ratchet 403 and the cam 406 are connected by the ratchet 403 and the ratchet body 404, the ratchet 403 and the circular shell 415 rotate along the outside of the ratchet body 404 without driving the ratchet body 404 to rotate;

[0041] A looseness indication assembly 6 is provided on the top of the movable plate 413. When the arc chute 5 is loose and moves relatively, the movement of the arc chute 5 can drive the soft brush 414, the movable plate 413 and the auxiliary plate 602 to move along the outer side of the strip plate 411, thereby causing a relative offset between the first indicator bar 603 and the second indicator bar 604. By observing the position between the first indicator bar 603 and the second indicator bar 604, the user can know whether the arc chute 5 is loose, so as to facilitate timely maintenance of the arc chute 5.

[0042] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent circuit breaker, characterized in that: include: A housing (1), wherein an inner cavity of the housing (1) is provided with a rotating shaft (2), a lever (3) and an arc extinguishing grid (5), and the lever (3) is rotatably connected to the housing (1) via the rotating shaft (2); A cleaning assembly (4) is arranged on the rear side of the inner cavity of the housing (1), the cleaning assembly (4) comprising a first gear (401), the rear side of the rotating shaft (2) being fixedly sleeved with the first gear (401), the outer side of the first gear (401) being meshed with a second gear (402), the rear side of the second gear (402) being connected to a ratchet mechanism, the rear side of the ratchet mechanism being provided with a cam (406), the rear side of the cam (406) being provided with a movable groove (407), the inner cavity of the movable groove (407) being movably connected to a cylinder (408), the rear side of the cylinder (408) being connected to a connecting plate (409), the top of the connecting plate (409) being fixedly mounted with a transverse plate (410), the inner cavity of the transverse plate (410) being connected to a movable plate (413) by means of a connecting assembly, the bottom of the movable plate (413) being connected to a soft brush (414) adhering to the side of the arc extinguishing grid (5); The ratchet mechanism comprises a circular shell (415), ratchet teeth (403), a ratchet body (404) and a connecting shaft (405); When the circuit breaker is in a closed state, the lever (3) drives the rotating shaft (2) to rotate clockwise, thereby driving the second gear (402) and the ratchet mechanism to rotate, thereby driving the cam (406) to rotate. When the cam (406) rotates, it can drive the soft brush (414) to move up and down on the outside of the arc extinguishing grid (5) to clean dust on the arc extinguishing grid (5); When the gate is opened, the second gear (402) rotates along the outer side of the ratchet body (404) with the round shell (415) without driving the cam (406) to rotate, so that the soft brush (414) remains in its original shape; The top of the movable plate (413) is provided with a loose display component (6), and the loose display component (6) includes a square groove (601), an auxiliary plate (602), a first indicator bar (603) and a second indicator bar (604). The top of the housing (1) is provided with a square groove (601), and the top of the movable plate (413) is fixedly mounted with an auxiliary plate (602) located in the inner cavity of the square groove (601). The top of the auxiliary plate (602) is provided with a first indicator bar (603), and the top of the housing (1) is provided with a second indicator bar (604) aligned with the first indicator bar (603).

2. The intelligent circuit breaker according to claim 1, characterized in that: A circular shell (415) is fixedly mounted on the rear side of the second gear (402), and ratchet teeth (403) are provided 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), and a ratchet body (404) connected to the ratchet teeth (403) is fixedly sleeved on the outer side of the connecting shaft (405).

3. The intelligent circuit breaker according to claim 1, characterized in that: The second gear (402) is rotatably connected to the inner wall of the housing (1) via a shaft, and the diameter of the first gear (401) is greater than the diameter of the second gear (402).

4. The intelligent circuit breaker according to claim 1, characterized in that: The connecting assembly comprises a strip plate (411) and a square frame (412); the square frame (412) is fixedly installed between the upper portions of the two movable plates (413); and the strip plate (411) located in the inner cavity of the square frame (412) is fixedly installed in the inner cavity of the transverse plate (410).

5. The intelligent circuit breaker according to claim 1, characterized in that: The looseness display component (6) further comprises a moving block (606) and a moving groove (605); the moving groove (605) is provided on a side of the arc extinguishing grid (5); and the moving block (606) located in the inner cavity of the moving groove (605) is fixedly mounted on one side of the soft brush (414).

6. The intelligent circuit breaker according to claim 5, characterized in that: The cross section of the movable groove (605) is in a convex shape, and the movable block (606) is adapted to the shape of the movable groove (605).

7. The intelligent circuit breaker according to claim 1, characterized in that: A corrugated plate (7) is fixedly mounted on the side of the auxiliary plate (602), and the side of the corrugated plate (7) is in contact with the inner wall of the square groove (601).

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