CN112151328A

CN112151328A - Clutch device, operating mechanism and circuit breaker

Info

Publication number: CN112151328A
Application number: CN202011094712.6A
Authority: CN
Inventors: 张伟; 杨娜; ***; 樊瑞
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2020-12-29

Abstract

The invention provides a clutch device, an operating mechanism and a circuit breaker, and relates to the technical field of low-voltage electrical appliances, wherein a clutch gear assembly is used for being in transmission connection with a moving contact assembly, a driving gear is used for being meshed with an automatic assembly, and the clutch gear assembly is used for being in transmission connection with a manual assembly; the driving gear and the clutch gear assembly are coaxially arranged and can rotate relatively; a driving matching part is arranged on the driving gear, and a driven matching part is arranged on the clutch gear assembly; the driving gear rotates to drive the driving matching part to be respectively abutted against two ends of the driven matching part so that the clutch gear assembly drives the moving contact assembly to open or close; the elastic member is connected with the driving gear and is used for providing force for resetting the driving gear. Therefore, when the automatic assembly fails, the manual assembly is directly involved in driving the clutch gear assembly (because the driving gear is reset under the action of the elastic element) to drive the moving contact assembly to complete reliable opening and closing actions.

Description

Clutch device, operating mechanism and circuit breaker

Technical Field

The invention relates to the technical field of low-voltage electrical apparatus switches, in particular to a clutch device, an operating mechanism and a circuit breaker.

Background

With the rapid development of economy, the living standard of people is rapidly improved, and the safety of household electricity utilization is required to be higher. The small-sized circuit breaker can be installed on a terminal distribution line because of small size. Meanwhile, the circuit can be connected, carried and disconnected under the condition of normal or abnormal circuit, and the circuit and the electrical equipment are effectively protected. With the deep research on the circuit breaker, the technology for remotely controlling the opening and closing of the circuit breaker is gradually matured.

The existing circuit breaker has a remote switching-on and switching-off function, and usually a motor is used as a driving source to drive a moving contact to complete the switching-on and switching-off functions, but when the motor is powered off or a fault is encountered, the circuit breaker is difficult to perform the switching-on and switching-off actions, so that the connected circuit has great potential safety hazards.

Disclosure of Invention

The present invention is directed to provide a clutch device, an operating mechanism and a circuit breaker, which solve the problem that it is difficult to perform reliable opening and closing operations when a motor of the conventional circuit breaker fails.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

in one aspect of the embodiments of the present invention, there is provided a clutch device applied to an operating mechanism, including: the elastic piece, the driving gear and the clutch gear assembly; the clutch gear assembly is used for being in transmission connection with a moving contact assembly in the operating mechanism, the driving gear is used for being meshed with an automatic assembly in the operating mechanism, and the clutch gear assembly is used for being in transmission connection with a manual assembly in the operating mechanism; the driving gear and the clutch gear assembly are coaxially arranged and can rotate relatively; a driving matching part is arranged on the driving gear, and a driven matching part is arranged on the clutch gear assembly; the driving gear rotates to drive the driving matching part to be respectively abutted against two ends of the driven matching part so that the clutch gear assembly drives the moving contact assembly to open or close; the elastic member is connected with the driving gear and is used for providing force for resetting the driving gear.

Optionally, the driving matching part is a sliding hole, and the driven matching part is a protrusion, or the driving matching part is a protrusion and the driven matching part is a sliding hole; the sliding hole is arranged in an arc shape by taking the rotation center of the driving gear as the center of a circle, and the bulges are accommodated in the sliding hole and can be respectively abutted against two end walls of the sliding hole.

Optionally, the rotational stroke of the protrusion is less than or equal to the arc length between the two end walls of the slide hole.

Optionally, the clutch gear assembly comprises a clutch gear and a handle gear which are meshed with each other; the clutch gear and the driving gear are coaxially arranged; the driven matching part is arranged on the clutch gear; the handle gear is respectively used for being in transmission connection with the manual component and the moving contact component.

Optionally, the clutch gear assembly includes a clutch gear and a handle piece coaxially disposed, the driven fitting portion is disposed on the clutch gear, and the handle piece can rotate relative to the clutch gear; the handle piece is respectively used for being connected with the manual component and the moving contact component; the clutch gear is provided with a boss, and the boss drives the handle piece to rotate so as to drive the moving contact component to be switched on or switched off when the clutch gear rotates.

Optionally, the elastic element is a torsion spring, one end of the torsion spring is connected with the driving gear, and the other end of the torsion spring is arranged in the shell of the circuit breaker.

Optionally, the elastic element is a tension spring, one end of the tension spring is connected with the driving gear, and the other end of the tension spring is arranged in the shell of the circuit breaker.

In another aspect of the embodiments of the present invention, an operating mechanism is provided, which is disposed in a circuit breaker housing, and includes an automatic assembly, a manual assembly, a moving contact assembly, and any one of the above clutch devices; the automatic assembly is engaged with a driving gear of the clutch device, and a clutch gear assembly of the clutch device is in transmission connection with the manual assembly and the moving contact assembly respectively.

Optionally, the automatic assembly includes a driver and a drive gear set, the driver is engaged with the drive gear set, and the drive gear set is engaged with the drive gear.

Optionally, the operating mechanism further includes a first side plate and a second side plate which are oppositely arranged; the automatic assembly is positioned between the first side plate and the second side plate and is respectively connected with the first side plate and the second side plate in a rotating mode.

In another aspect of the embodiments of the present invention, there is provided a circuit breaker, including a housing and any one of the above-mentioned operating mechanisms, wherein the operating mechanism is disposed in the housing.

The beneficial effects of the invention include:

the invention provides a clutch device, wherein a clutch gear assembly is used for being in transmission connection with a moving contact assembly in an operating mechanism, a driving gear is used for being meshed with an automatic assembly in the operating mechanism, and the clutch gear assembly is used for being in transmission connection with a manual assembly in the operating mechanism; the driving gear and the clutch gear assembly are coaxially arranged and can rotate relatively; the driving gear is provided with a driving matching part, and the clutch gear assembly is provided with a driven matching part. When the driving gear forward rotates, drive the motion of initiative cooperation portion and with the one end butt of driven cooperation portion, thereby drive clutch gear subassembly and rotate and realize separating brake or combined floodgate, it is corresponding, when the driving gear antiport, drive the motion of initiative cooperation portion and with the other end butt of driven cooperation portion, thereby drive clutch gear subassembly and rotate and realize combined floodgate or separating brake, because elastic component and driving gear connection, can provide the power that resets to the driving gear, consequently, after combined floodgate or separating brake target in place, the elastic component can drive the driving gear and reset, thereby make the both ends that driven cooperation portion was kept away from to initiative cooperation portion, driving gear and clutch gear subassembly break away from promptly. Therefore, when the automatic assembly fails, the manual assembly is directly involved in driving the clutch gear assembly (because the driving gear is reset under the action of the elastic element) to drive the moving contact assembly to complete reliable opening and closing actions.

The invention provides an operating mechanism, wherein the clutch device is applied to the operating mechanism, so that the problem that reliable opening and closing actions are difficult to perform when a motor of a breaker fails can be effectively solved.

The invention provides a circuit breaker, wherein the operating mechanism comprising the clutch device is applied to the circuit breaker, the operating mechanism is arranged in a shell, the problem that the automatic opening and closing is difficult to open and close reliably when in failure or fault is solved, meanwhile, the internal operating mechanism can be further protected and isolated, and the reliability and stability of the whole circuit breaker are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a clutch device according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a clutch device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an operating mechanism according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of an operating mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an automatic assembly of an operating mechanism according to an embodiment of the present invention;

FIG. 6 is a second schematic structural view of an automatic assembly of an operating mechanism according to an embodiment of the present invention;

fig. 7 is a third schematic structural diagram of an operating mechanism according to an embodiment of the present invention;

FIG. 8 is a fourth schematic structural diagram of an operating mechanism according to an embodiment of the present invention;

fig. 9 is a third schematic structural diagram of a clutch device according to an embodiment of the present invention;

FIG. 10 is a fourth schematic view of a clutch device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a clutch gear assembly of a clutch device according to an embodiment of the present invention.

Icon: 111-clutch gear; 1111-slide hole; 1112-a boss; 112-handle gear; 113-a handle member; 120-a drive gear; 121-projection; 130-an elastic member; 200-a housing; 300-a manual assembly; 400-an automatic assembly; 410-a driver; 420-drive gear set; 500-moving contact assembly; 600-a gearbox; 610-a first side panel; 620-second side panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In one aspect of the embodiments of the present invention, there is provided a clutch device applied to an operating mechanism, including: the elastic member 130, the driving gear 120 and the clutch gear assembly; the clutch gear assembly is used for being in transmission connection with a moving contact assembly 500 in the operating mechanism, the driving gear 120 is used for being meshed with an automatic assembly 400 in the operating mechanism, and the clutch gear assembly is used for being in transmission connection with a manual assembly 300 in the operating mechanism; the driving gear 120 and the clutch gear assembly are coaxially arranged and can rotate relatively; a driving matching part is arranged on the driving gear 120, and a driven matching part is arranged on the clutch gear assembly; the driving gear 120 rotates to drive the driving matching part to be respectively abutted against two ends of the driven matching part so that the clutch gear assembly drives the moving contact assembly 500 to open or close; the elastic member 130 is connected to the driving gear 120 for providing a force for returning the driving gear 120. When the driving gear 120 forward rotates, drive the motion of initiative cooperation portion and with the one end butt of driven cooperation portion, thereby drive clutch gear assembly and rotate and realize separating brake or combined floodgate, it is corresponding, when the driving gear 120 reverse rotation, drive the motion of initiative cooperation portion and with the other end butt of driven cooperation portion, thereby drive clutch gear assembly and rotate and realize combined floodgate or separating brake, because elastic component 130 is connected with driving gear 120, can provide the power that resets to driving gear 120, consequently, after combined floodgate or separating brake target in place, elastic component 130 can drive driving gear 120 and reset, thereby make the both ends that driven cooperation portion were kept away from to initiative cooperation portion, driving gear 120 and clutch gear assembly break away from promptly, manual assembly 300 and automatic assembly 400 do not produce the interference. Therefore, when the automatic assembly 400 fails, the manual assembly 300 is directly involved in driving the clutch gear assembly (because the driving gear 120 is reset under the action of the elastic element 130) to drive the movable contact assembly 500 to complete reliable opening and closing actions.

Optionally, the driving matching part is a sliding hole 1111, and the driven matching part is a protrusion 121, or the driving matching part is a protrusion 121, and the driven matching part is a sliding hole 1111; the sliding hole 1111 is disposed in an arc shape with the rotation center of the driving gear 120 as a center, and the protrusions 121 are received in the sliding hole 1111 and may be respectively abutted to both end walls of the sliding hole 1111.

Illustratively, the clutch device includes an elastic member 130, a driving gear 120 and a clutch gear 111 assembly, wherein the clutch gear 111 assembly is drivingly connected to the movable contact assembly 500 in the operating mechanism, and the movable contact assembly 500 is driven to close or open when the clutch gear 111 assembly is driven. The clutch gear 111 assembly is in transmission connection with the manual assembly 300, the driving gear 120 is meshed with the automatic assembly 400, and when the protrusions 121 are abutted against the two end walls of the sliding hole 1111, the driving gear 120 and the clutch gear 111 assembly are in a drivable state, so that two driving modes, namely manual driving and automatic driving, are realized. The elastic member 130 is connected with the driving gear 120, and the driving gear 120 and the clutch gear 111 are respectively provided with a sliding hole 1111 and a protrusion 121, and the specific arrangement forms thereof are two types:

one of them is: the driving gear 120 is provided with a protrusion 121, and the clutch gear 111 assembly is provided with a sliding hole 1111 corresponding to the protrusion.

The other one is as follows: the driving gear 120 is provided with a slide hole 1111, and the clutch gear 111 assembly is provided with a protrusion 121 corresponding to the slide hole 1111.

Since the two types of the protrusions 121 and the sliding holes 1111 are disposed in a manner that only the protrusions 121 push the end walls of the sliding holes 1111 to move, for convenience of description, the following description will be schematically made by taking "the protrusions 121 are disposed on the driving gear 120, and the corresponding sliding holes 1111 are disposed on the clutch gear 111 assembly" as an example:

as shown in fig. 1 and 2, the drive gear 120 and the clutch gear 111 are coaxially disposed and are rotatable with respect to each other. The protrusion 121 disposed on the driving gear 120 should be matched with the sliding hole 1111 of the clutch gear 111 assembly, that is, the protrusion 121 can be at least partially received in the sliding hole 1111, in order that the driving gear 120 can rotate back to the initial position relative to the clutch gear 111 under the reset force provided by the elastic member 130 when the clutch gear 111 assembly rotates to the position (the movable contact assembly 500 is in the open position or the closed position), the sliding hole 1111 should be shaped as an arc with the common rotation center of the driving gear 120 or the clutch gear 111 assembly as the center of a circle, so as to avoid the generation of sliding interference.

As shown in fig. 3 and 4, when the movable contact assembly 500 needs to be closed, the following description will be schematically made by taking manual and automatic as examples:

automatic closing: the automatic assembly 400 receives a closing signal to drive the driving gear 120 engaged therewith to rotate in a closing direction, the protrusion 121 of the driving gear 120 abuts against one end of the sliding hole 1111 of the clutch gear 111 assembly (for convenience of description, the end of the sliding hole 1111 abutting against the protrusion 121 is referred to as a closing end, and the opposite end is referred to as a separating end) and, as the driving gear 120 continuously rotates, the elastic member 130 connected thereto is gradually stretched or compressed, the driving gear 120 drives the clutch gear 111 assembly to rotate in the closing direction, and further drives the movable contact assembly 500 connected to the clutch gear 111 assembly to complete a closing operation. When the movable contact assembly 500 is closed in place, the driver 410 in the robot assembly 400 stops working, and the driving gear 120 loses its driving force and rotates in the opposite direction, i.e., rotates to the initial state, under the restoring force of the elastic member 130 to the driving gear 120.

Manual closing: the external force drives the manual assembly 300 to move, the clutch gear 111 assembly in transmission connection with the manual assembly 300 is driven to move towards the closing direction, in the rotating process of the clutch gear 111 assembly, the closing end of the sliding hole 1111 is gradually far away from the protrusion 121, the opening end of the sliding hole 1111 is gradually close to the protrusion 121, namely, at the moment, the sliding hole 1111 slides relative to the protrusion 121, the clutch gear 111 assembly rotates towards the closing direction relative to the driving gear 120, the driving gear 120 does not act, namely, at the moment, the manual closing process cannot be interfered due to the automatic assembly 400.

When the automatic closing fails or fails, since the protrusion 121 (the driving gear 120) is reset under the action of the elastic member 130, an external force can be applied to the manual assembly 300, so that the manual assembly 300 directly intervenes in the closing process, and directly pushes the clutch gear 111 assembly to move towards the closing direction, thereby driving the movable contact assembly 500 to complete the closing.

When the movable contact assembly 500 needs to be opened, the following description will also be schematically described by taking a manual example and an automatic example as follows:

automatic closing: the automatic assembly 400 receives the opening signal, drives the driving gear 120 engaged with the automatic assembly to rotate towards the opening direction (along with the rotation, the elastic member 130 generates the reset acting force on the driving gear 120), until the protrusion 121 of the driving gear 120 abuts against the opening end of the sliding hole 1111 of the clutch gear 111 assembly, and along with the continuous rotation of the driving gear 120, drives the clutch gear 111 assembly to rotate towards the opening direction, and further pushes the moving contact assembly 500 to perform the opening action. When the moving contact assembly 500 is opened, the driver 410 in the robot assembly 400 stops working, and at this time, the driving gear 120 loses its driving force, and rotates in the opposite direction under the restoring force of the elastic member 130 to the driving gear 120, i.e., rotates to the initial state (or the driving gear 120 drives the entire robot assembly 400 to restore).

Manual brake opening: the manual assembly 300 is driven by an external force to move the clutch gear 111 assembly towards the opening direction, in the rotating process of the clutch gear 111 assembly, the closing end of the sliding hole 1111 is gradually close to the protrusion 121, the opening end of the sliding hole 1111 is gradually far away from the protrusion 121, namely, at this time, the sliding hole 1111 slides relative to the protrusion 121, the clutch gear 111 assembly rotates towards the closing direction relative to the driving gear 120, the driving gear 120 does not act, namely, at this time, the manual closing process cannot be interfered by the automatic assembly 400.

When the automatic opening brake fails or fails, the protrusion 121 (the driving gear 120) is reset under the action of the elastic member 130, and the clutch gear 111 assembly can be directly pushed to complete the opening brake action through the manual assembly 300.

In addition, in order to realize that the manual assembly 300 can directly intervene to complete the required switching-off or switching-on actions when the automatic assembly 400 has a fault or fails, the manual assembly 300 can be driven to move together by the clutch gear 111 assembly when the automatic assembly 400 is used as a driving source, so that the manual assembly 300 directly intervenes to replace the automatic assembly 400 to complete the required switching-off or switching-on actions after the automatic assembly 400 fails in the switching-off or switching-on process, the flexible complementarity of the manual switching-off and the automatic switching-on is further improved, and the reliability and the stability of an operating mechanism of the whole circuit breaker are effectively improved.

Alternatively, in another embodiment, the driving fitting part may be a driving protrusion, the driven fitting part may be two closing driven protrusions and opening driven protrusions respectively disposed on the clutch gear assembly, when the device is installed, the driving protrusion, the closing driven protrusion and the opening driven protrusion are all required to be located on a circle line of the same circle with the rotation center of the driving gear 120 or the clutch gear assembly as the center of the circle, and the driving protrusion is located between the closing driven protrusion and the opening driven protrusion (the proper arc length should be provided between the closing driven protrusion and the opening driven protrusion to facilitate the movement of the driving protrusion), so that when the driving gear 120 rotates forward, the driving protrusion abuts against the closing driven protrusion and drives the clutch gear assembly to move to close the moving contact assembly 500, when the driving gear 120 rotates reversely, the driving protrusion abuts against the opening driven protrusion and drives the clutch gear assembly to move so as to realize opening of the moving contact assembly 500. Of course, in another embodiment, the driving matching portion may be two protrusions, the driven matching portion may be one protrusion, and the protrusion of the driven matching portion is located between the two protrusions of the driving matching portion.

Optionally, the rotational stroke of the protrusion 121 is less than or equal to the arc length between the two end walls of the sliding hole 1111.

For example, the rotation stroke of the protrusion 121 during switching on or switching off, that is, the length of a rotation arc of the protrusion 121 around the driving gear 120 as a center of circle may be less than or equal to the length of an arc from the switching-on end to the switching-off end of the sliding hole 1111 around the driving gear 120 as a center of circle, so that after switching off or switching on is completed, the driving gear 120 does not push the switching-on end or the switching-off end of the sliding hole 1111 to move in the process of rotating to the initial position under the action of the elastic member 130, and the clutch gear 111 assembly part in transmission connection with the movable contact assembly 500 moves, so that the movable contact assembly 500 can be reliably maintained in the state of switching-off being completed or switching-on being completed, and the stability of switching on or switching off of the circuit breaker is improved.

Optionally, the clutch gear 111 assembly includes a clutch gear 111 and a handle gear 112 that are engaged with each other; the clutch gear 111 and the driving gear 120 are coaxially arranged; the slide hole 1111 or the protrusion 121 is disposed on the clutch gear 111; the handle gear 112 is used for driving connection with the manual assembly 300 and the movable contact assembly 500, respectively.

For example, as shown in fig. 3 and 4, the clutch gear 111 assembly may include a clutch gear 111 and a handle gear 112 that are in meshed transmission with each other. In this embodiment, the clutch gear 111 and the driving gear 120 are coaxially disposed, and the handle gear 112 may be drivingly connected to the manual assembly 300 and the movable contact assembly 500, respectively. Correspondingly, the sliding hole 1111 may be disposed on the clutch gear 111, the protrusion 121 may be disposed on the driving gear 120, or the protrusion 121 may be disposed on the clutch gear 111, and the sliding hole 1111 is disposed on the driving gear 120. This embodiment is not limited thereto. The clutch gear 111 and the handle gear 112 are meshed with each other, so that flexible selection can be performed according to the environment space for installing the circuit breaker, and the application range of the circuit breaker is widened.

Alternatively, as shown in fig. 11, the clutch gear 111 assembly may further include a clutch gear 111 and a handle member 113 coaxially disposed. The handle member 113 can rotate relative to the clutch gear 111, and the handle member 113 can be respectively connected with the manual assembly 300 and the movable contact assembly 500 in a transmission way. The clutch gear 111 is provided with a boss 1112, and when the clutch gear 111 rotates, the boss 1112 can rotate along with the clutch gear 111 to drive the handle part 113 to rotate, so as to drive the movable contact assembly 500 to move. One side of the boss 1112 may push the movable contact assembly 500 to close when closing, and the other side of the boss 1112 may push the movable contact assembly 500 to open when opening. With handle piece 113 and the coaxial setting of clutch gear 111, can effectually save the inner space of circuit breaker, be favorable to the miniaturization of circuit breaker.

Optionally, the elastic member 130 is a torsion spring, one end of the torsion spring is connected to the driving gear 120, and the other end of the torsion spring is disposed in the circuit breaker housing 200.

For example, as shown in fig. 1, the elastic member 130 may be a torsion spring, which is sleeved on the rotating shaft of the driving gear 120, and one end of the torsion spring is connected to the driving gear 120, and the other end of the torsion spring is connected to the housing 200 of the circuit breaker, and the connection may be an abutment or a fixed connection.

Optionally, the elastic member 130 is a tension spring, one end of the tension spring is connected to the driving gear 120, and the other end of the tension spring is disposed in the circuit breaker housing 200.

For example, as shown in fig. 9 and 10, the elastic member 130 may be a tension spring, and in order to improve the motion stability of the driving gear 120, a corresponding arc-shaped receiving groove may be further disposed on the housing 200, the tension spring is installed in the receiving groove in an arc-shaped manner, one end of the tension spring abuts against the receiving groove, and the other end of the tension spring abuts against the driving gear 120, and when the driving gear 120 rotates, the tension spring is correspondingly compressed or stretched, and then a restoring force is provided by using the tension spring. In this embodiment, the number of the tension springs is not limited, and for example, the number of the tension springs may be 1, or 2 as shown in fig. 9 and 10, or 3, 4, or the like. Similarly, the elastic member 130 may also be a compression spring, and the arrangement form thereof may refer to the arrangement form of a tension spring, which is not described herein again.

In another aspect of the embodiments of the present invention, an operating mechanism is provided, as shown in fig. 3, which is disposed in a circuit breaker housing 200, and includes an automatic assembly 400, a manual assembly 300, a movable contact assembly 500, and any one of the above clutch devices; the automatic assembly 400 is engaged with the driving gear 120 of the clutch device, and the clutch gear 111 of the clutch device is drivingly connected with the manual assembly 300 and the moving contact assembly 500, respectively. Through elastic component 130, driving gear 120 and clutch gear 111 subassembly among the disengaging gear, realize when automatic divide-shut brake trouble, driving gear 120 can return initial position under elastic component 130's effort, and at this moment, clutch gear 111 breaks away from with automatic assembly 400, realizes that product mechanism and drive mechanism break away from to not influence product manual operation, can accomplish the partial floodgate through manual intervention, has effectively improved operating device's stability. Meanwhile, as the clutch gear 111 is disengaged from the driving gear 120 (after the driving gear 120 is reset under the action of the elastic element 130), the clutch gear 111 is relatively free, and the movable contact assembly 500 can reliably stay at the opening position or the closing position under the action of the mechanism force, so that the reliability of the circuit breaker is further improved. Further, it is also possible to prevent product failsafe tripping (time-delay protection tripping and instantaneous protection tripping) after the clutch gear 111 is disengaged from the automatic assembly 400.

Alternatively, as shown in fig. 3, the robot assembly 400 includes a driver 410 and a drive gear set 420, the driver 410 being engaged with the drive gear set 420, and the drive gear set 420 being engaged with the pinion gear 120. The driver 410 may be a motor, etc., and the driving gear set 420 may be a multi-stage gear set as shown in fig. 3, and the present application does not limit the specific arrangement position, number, etc. as long as the driver 410 can drive the driving gear 120 through the driving gear set 420.

Optionally, the operating mechanism further includes a first side plate 610 and a second side plate 620 which are oppositely arranged; the robot assembly 400 is positioned between the first side plate 610 and the second side plate 620 and is rotatably connected to the first side plate 610 and the second side plate 620, respectively.

For example, as shown in fig. 5 and 6, a first side plate 610 and a second side plate 620 may be further disposed on two sides of the automatic assembly 400, that is, the first side plate 610 and the second side plate 620 are used to form a gear box 600 structure, so that the automatic assembly 400 can cooperate with the gear box 600 to form a modular structure, and meanwhile, since the first side plate 610 and the second side plate 620 are disposed on two sides of the automatic assembly 400 for isolation, other components of the circuit breaker may be disposed side by side with the automatic assembly 400 on the upper and lower sides as shown in fig. 6, so as to avoid interference of the components with the actions of the automatic assembly 400. Simultaneously, also be favorable to reducing the horizontal length of circuit breaker for the circuit breaker can be applicable to multiple scene. As shown in fig. 7, the modular automation assembly 400 cooperates with the clutch and movable contact assemblies 500 for actuation. As shown in fig. 8, a modular automation assembly 400 is disposed within the circuit breaker in a mating relationship with the housing 200.

In another aspect of the embodiments of the present invention, a circuit breaker is provided, which includes a housing 200 and any one of the above-mentioned operating mechanisms, and the operating mechanism is disposed in the housing 200.

In an example, the operating mechanism including the clutch device is applied to a circuit breaker, that is, as shown in fig. 3 and 8, the operating mechanism is arranged inside the housing 200, so that the problem that the automatic opening and closing operation is difficult to be reliably opened and closed when the automatic opening and closing operation fails or fails is solved, meanwhile, the internal operating mechanism can be further protected and isolated, and the reliability and stability of the whole circuit breaker are improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clutch device applied to an operating mechanism is characterized by comprising: the elastic piece, the driving gear and the clutch gear assembly; the clutch gear assembly is used for being in transmission connection with a moving contact assembly in the operating mechanism, the driving gear is used for being meshed with an automatic assembly in the operating mechanism, and the clutch gear assembly is used for being in transmission connection with a manual assembly in the operating mechanism;

the driving gear and the clutch gear assembly are coaxially arranged and can rotate relatively; the clutch gear assembly is provided with a clutch gear assembly, a clutch gear and a clutch gear assembly, wherein the clutch gear assembly is provided with a clutch gear; the driving gear rotates to drive the driving matching part to be respectively abutted against two ends of the driven matching part so that the clutch gear assembly drives the moving contact assembly to be switched off or switched on; the elastic piece is connected with the driving gear and used for providing force for resetting the driving gear.

2. The clutch device according to claim 1, wherein the driving engagement portion is a slide hole and the driven engagement portion is a protrusion, or wherein the driving engagement portion is a protrusion and the driven engagement portion is a slide hole; the sliding hole is arranged in an arc shape by taking the rotation center of the driving gear as a circle center, and the bulges are accommodated in the sliding hole and can be respectively abutted against two end walls of the sliding hole.

3. The clutch device of claim 2, wherein the rotational travel of the projection is less than or equal to the arc length between the end walls of the slide hole.

4. A clutch device according to any one of claims 1 to 3, wherein the clutch gear assembly comprises a clutch gear and a handle gear which mesh with each other; the clutch gear and the driving gear are coaxially arranged; the driven matching part is arranged on the clutch gear; the handle gear is respectively used for being in transmission connection with the manual component and the moving contact component.

5. A clutch device according to any one of claims 1 to 3, wherein the clutch gear assembly comprises a clutch gear and a handle member which are coaxially arranged, the driven engagement portion is arranged on the clutch gear, and the handle member is rotatable relative to the clutch gear; the handle part is respectively used for being connected with the manual component and the moving contact component; the clutch gear is provided with a boss, and the boss is used for driving the handle piece to rotate so as to drive the moving contact component to be switched on or switched off when the clutch gear rotates.

6. The clutch device according to any one of claims 1 to 3, wherein the elastic member is a torsion spring, one end of the torsion spring is connected with the driving gear, and the other end of the torsion spring is arranged in a circuit breaker housing.

7. The clutch device according to any one of claims 1 to 3, wherein the elastic member is a tension spring, one end of the tension spring is connected to the driving gear, and the other end of the tension spring is disposed in a circuit breaker housing.

8. An operating mechanism disposed in a circuit breaker housing, comprising an automatic assembly, a manual assembly, a moving contact assembly and a clutch device according to any one of claims 1 to 7; the automatic assembly is meshed with a driving gear of the clutch device, and a clutch gear assembly of the clutch device is in transmission connection with the manual assembly and the moving contact assembly respectively.

9. The operating mechanism of claim 8 wherein said automated assembly includes a driver and a drive gear set, said driver being in meshing engagement with said drive gear set, said drive gear set being in meshing engagement with said drive gear.

10. The operating mechanism of claim 8 or 9, further comprising first and second oppositely disposed side plates; the automatic assembly is located between the first side plate and the second side plate and is respectively connected with the first side plate and the second side plate in a rotating mode.

11. A circuit breaker comprising a housing and an operating mechanism as claimed in any one of claims 8 to 10, the operating mechanism being disposed within the housing.