CN213816030U - Operating device and circuit breaker - Google Patents

Abstract

The utility model provides an operating mechanism and a circuit breaker, which relate to the technical field of low-voltage electrical apparatus switches, and comprise an operating part, an action mechanism and a movable contact assembly which are arranged in a shell; the operating part is in driving connection with the action mechanism, the action mechanism is in driving connection with the moving contact component, and the operating part is used for driving the action mechanism to drive the moving contact component to switch on or switch off through linear motion after being stressed. The operating element drives the action mechanism to drive the movable contact assembly to move in a linear motion mode, so that the action range of the operating element during switching on and off can be reduced, the interference of the operating element with peripheral components due to the fact that the switching on and off action range is large is avoided, and the operability of the circuit breaker is improved. Meanwhile, the smoothness of the movement of the operating mechanism after force application can be improved, so that the reliability of the operation of the breaker in opening and closing is improved.

Description

Operating device and circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus switch technical field particularly, relates to an operating device and 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 operating parts in the existing circuit breaker operating mechanism realize the opening and closing of the circuit breaker through rotation, but the required area of rotation is large, so that the circuit breaker is easy to interfere with surrounding parts, and the opening and closing operation is difficult.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the not enough among the above-mentioned prior art, provide an operating device and circuit breaker to operating parts form the problem of interference easily with peripheral part because of rotating when solving current circuit breaker operating device divide-shut brake.

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

the utility model discloses an aspect provides an operating device, include: the operating piece, the action mechanism and the moving contact component are arranged in the shell; the operating part is in driving connection with the action mechanism, the action mechanism is in driving connection with the moving contact component, and the operating part is used for driving the action mechanism to drive the moving contact component to switch on or switch off through linear motion after being stressed.

Optionally, the operating element comprises an operating element body and a driving part which are connected with each other; the action mechanism comprises an action component and a driven convex part which are connected with each other; the action component is in driving connection with the moving contact component; the driving part is used for driving the driven convex part to drive the action component to drive the moving contact component to switch on or switch off when the operation component body moves linearly.

Optionally, the driving part is a push rod, the side wall of the driven convex part corresponds to the pushing end of the push rod, and the pushing end of the push rod is used for abutting against the side wall of the driven convex part when the operating part body moves linearly.

Optionally, the driving portion is a rack, the driven convex portion is a gear portion, the rack is in transmission connection with the gear portion, and the rack is used for driving the gear portion to move when the operating member body moves linearly.

Optionally, the operating member is connected to the actuating mechanism through a first connecting member, and is configured to drive the actuating mechanism through the first connecting member when the operating member moves linearly.

Optionally, the action assembly comprises a rotating part and a second connecting part, the driven convex part is arranged on the rotating part, the rotating part and the moving contact assembly are respectively connected with the shell in a rotating mode, and the rotating part is connected with the moving contact assembly through the second connecting part.

Optionally, the moving contact component comprises a first elastic element, a tripping component and a moving contact; the moving contact is connected with the second connecting piece, and tripping assembly and moving contact rotate with the casing respectively and are connected, and first elastic component is connected with the moving contact, and tripping assembly and moving contact joint, tripping assembly are used for removing the joint with the moving contact when receiving the tripping force and break off the floodgate under the effect of first elastic component reset force in order to make the moving contact.

Optionally, the trip device further comprises an electromagnetic trip device and a thermal trip device, and the electromagnetic trip device and the thermal trip device are respectively in driving connection with the trip assembly.

Optionally, the device further comprises a second elastic element, and the second elastic element is connected with the rotating element and used for providing a resetting force for the rotating element.

In another aspect of the embodiments of the present invention, a circuit breaker is provided, which includes a static contact and any one of the above-mentioned operating mechanisms; the static contact is arranged in the shell of the operating mechanism and corresponds to the moving contact component of the operating mechanism.

The beneficial effects of the utility model include:

the utility model provides an operating device is provided with operating parts, actuating mechanism and moving contact subassembly in the casing, and wherein, actuating mechanism is connected with operating parts and moving contact subassembly drive respectively, realizes circuit breaker divide-shut brake operation. When the switch needs to be switched on or switched off, acting force is applied to the operating part, the operating part moves linearly, then the operating mechanism is driven to move, the moving contact component is driven to move while the operating mechanism moves, the moving contact component can be contacted with or disconnected from the fixed contact, and effective switch on and off are achieved. The operating element drives the action mechanism to drive the movable contact assembly to move in a linear motion mode, so that the action range of the operating element during switching on and off can be reduced, the interference of the operating element with peripheral components due to the fact that the switching on and off action range is large is avoided, and the operability of the circuit breaker is improved. Meanwhile, the smoothness of movement of the operating mechanism after force application can be improved, and the reliability of operation of the breaker in opening and closing is further improved.

The utility model provides a circuit breaker, be used for the circuit breaker with foretell operating device, simultaneously, be provided with the static contact that corresponds with the moving contact subassembly among the operating device in the inside of casing to operating part linear motion drive actuating mechanism through operating device drives the motion of moving contact subassembly, accomplishes the divide-shut brake with the static contact, action range when can reducing the operating part divide-shut brake, avoid it because of the great interference that leads to with peripheral part of divide-shut brake action range, improve the easy operability of circuit breaker. Meanwhile, the smoothness of movement of the operating mechanism after force application can be improved, and the reliability of operation of the breaker in opening and closing is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required 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 view of an operating mechanism in a brake-off state according to an embodiment of the present invention;

fig. 2 is one of schematic diagrams illustrating an operating mechanism in a closing state according to an embodiment of the present invention;

fig. 3 is a second schematic diagram illustrating the operating mechanism in a closing state according to the embodiment of the present invention;

fig. 4 is a schematic view of an operating mechanism in a fault trip state according to an embodiment of the present invention;

fig. 5 is a second schematic diagram illustrating the operating mechanism in a fault-trip state according to the embodiment of the present invention;

fig. 6 is a third schematic view illustrating the operating mechanism in a fault release state according to the embodiment of the present invention;

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

fig. 8 is a schematic structural diagram of a rotating member of an operating mechanism according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an operating mechanism according to an embodiment of the present invention;

fig. 10 is a second schematic structural diagram of an operating mechanism according to an embodiment of the present invention;

fig. 11 is a third schematic structural diagram of an operating mechanism according to an embodiment of the present invention.

Icon: 100-a housing; 200-an operating member; 210-a drive section; 220-a first connector; 310-a rotating member; 311-driven lobe; 312-rotating attachment hole; 313-a via; 320-a second connector; 330-snap fastener; 331-clamping position; 340-a trip assembly; 341-third elastic member; 350-a second elastic member; 400-moving contact body; 410-a first resilient member; 500-static contact; 600-an electromagnetic release; 700-thermal release.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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, as 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 accompanying drawings, 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 "first", "second", "third", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses an aspect provides an operating device, include: an operating member 200, an actuating mechanism and a movable contact assembly provided in the housing 100; the operating part 200 is in driving connection with the action mechanism, the action mechanism is in driving connection with the moving contact component, and the operating part 200 is used for driving the action mechanism to drive the moving contact component to switch on or switch off through linear motion after being stressed.

Illustratively, as shown in fig. 1, an operating element 200, an actuating mechanism and a moving contact assembly are arranged in a housing 100, wherein the actuating mechanism is respectively in driving connection with the operating element 200 and the moving contact assembly to realize the switching-on and switching-off operation of the circuit breaker. When switching on or switching off is needed, acting force is applied to the operating element 200, the operating element 200 moves linearly, then the actuating mechanism is driven to move, the moving contact component is driven to move while the actuating mechanism moves, the moving contact component can be contacted with or disconnected from the static contact 500, and effective switching on and off is achieved. The operating element 200 drives the action mechanism to drive the movable contact assembly to move in a linear motion mode, so that the action range of the operating element during switching on and off can be reduced, the interference of the operating element with peripheral components due to the large switching on and off action range is avoided, and the operability of the circuit breaker is improved. Meanwhile, the smoothness of movement of the operating mechanism after force application can be improved, and the reliability of operation of the breaker in opening and closing is further improved.

As shown in fig. 1, the operating mechanism is in a state of opening, in this case, the operating element 200 is slidably disposed on the housing 100, one end of the operating element 200 is used for applying an external force thereto, and the other end is provided with an actuating mechanism which can be driven by itself, so that the actuating mechanism can be driven to actuate when the operating element 200 moves linearly.

When the switch-on is required, an acting force is applied to one end of the operating element 200, the operating element 200 slides relative to the shell 100 to perform linear motion, so that the action mechanism is driven to act, the moving contact component is driven by the action mechanism to complete the switch-on, after the switch-on is completed, the whole operating mechanism is in the state shown in fig. 2, and at the moment, the circuit can be kept on.

Alternatively, the operating member 200 includes an operating member 200 body and a driving part 210 connected to each other; the actuating mechanism includes an actuating member and a driven boss 311 connected to each other; the action component is in driving connection with the moving contact component; the driving portion 210 is used for driving the driven protrusion 311 to drive the acting component to drive the moving contact component to switch on or switch off when the operating component 200 moves linearly.

Illustratively, as shown in fig. 7, 8 and 9, the operating element 200 includes an operating element 200 body and a driving portion 210 disposed on the operating element 200 body, and the actuating mechanism includes an actuating component and a driven protrusion 311 disposed on the actuating component, wherein the operating element 200 body is driven by the driving portion 210 and the driven protrusion 311 of the actuating component. When the switch needs to be switched on, the operating element 200 body is subjected to linear motion of acting force to drive the driving part 210 to correspondingly drive the driven convex part 311, so that the operating element 200 body drives the action component. After the action component is driven, the action component can drive or drive the moving contact component to move, and corresponding closing action is realized. When the brake is required to be opened, the moving contact component can perform reverse motion opposite to the closing motion to realize the reset of the opened brake. By adopting the structure form that the driving part 210 linearly moves to drive the driven convex part 311, not only a novel circuit breaker operating mechanism can be provided, but also the easy operability of the circuit breaker can be improved.

Optionally, the driving portion 210 is a push rod, the side wall of the driven protrusion 311 corresponds to a pushing end of the push rod, and the pushing end of the push rod is used for abutting against the side wall of the driven protrusion 311 when the operating element 200 body moves linearly.

For example, as shown in fig. 9 and 10, the driving part 210 may be a push rod fixedly connected to the operating element 200, and may be integrally formed with the operating element 200 or may be fixedly connected after being formed in several times. The pushing end of the push rod corresponds to the sidewall of the driven protrusion 311, that is, when the operating element 200 moves, the pushing end directly abuts against the sidewall of the driven protrusion 311, so as to realize driving. As shown in fig. 9, the positions of the push rod and the driven protrusion 311 are shown in the open state. When the switch-on is required, the push rod moves linearly along with the movement of the operating element 200, the pushing end acts on the driven protrusion 311 to push the moving element to move, so that the moving element drives the moving contact assembly to switch on, that is, the state after the switch-on is shown in fig. 10. By providing a form in which the push rod directly pushes the driven protrusion 311, the stability of the mechanism action can be improved. As shown in fig. 9 and 10, the operating member (the rotating member 310) is further provided with a separating protrusion, and the push rod is further provided with a separating groove, such that the separating protrusion is separated from the separating groove when in the separating state of fig. 9, and the separating protrusion is located in the separating groove when in the closing state of fig. 10. When the brake is required to be opened, the operating piece is pulled by external force to move reversely to drive the push rod to move reversely, and the side wall of the brake opening groove drives the brake opening protrusion to drive the whole action assembly to open the brake.

Optionally, the driving portion 210 is a rack, the driven protrusion 311 is a gear portion, the rack is in transmission connection with the gear portion, and the rack is used for driving the gear portion to move when the operating member 200 body moves linearly.

Illustratively, in conjunction with fig. 7 and 8, the driven protrusion 311 provided on the motion assembly includes a plurality of protrusions, and the plurality of protrusions collectively form a gear portion, which may be a fan-shaped gear portion as shown in fig. 8 or a circular gear portion, as long as it can perform stable transmission in cooperation with the rack gear shown in fig. 7. For convenience of description, the opening and closing operations will be described below by taking the sector gear as an example:

as shown in fig. 1, the rack and the sector gear are in the open state. When the switch needs to be switched on, the operating part 200 linearly moves to drive the rack to linearly move, and then drives the fan-shaped gear part to rotate through gear transmission, so that the action component is driven, and then the moving contact component is driven to move to complete the switch-on, and the switch is in the state shown in fig. 2.

Through the transmission form of rack and pinion, improve the stability of operation when realizing the transmission accuracy. In addition, through the transmission of rack and pinion, can also turn into the rotation with linear motion, so, the mode of the rotation combined floodgate of cooperation movable contact subassembly realizes the stable divide-shut brake of circuit breaker.

Optionally, the operating member 200 is connected to the actuating mechanism through a first connecting member 220, and is used for driving the actuating mechanism through the first connecting member 220 when the operating member 200 moves linearly.

For example, as shown in fig. 11, the operation element 200 is rotatably connected to one end of the first connection element 220, and the action mechanism is rotatably connected to the other end of the first connection element 220, and when the operation element 200 moves linearly, the action mechanism is pushed by the first connection element 220 to move, so that the action mechanism drives the moving contact assembly to switch on and off.

Optionally, the action assembly includes a rotating member 310 and a second connecting member 320, the driven protrusion 311 is disposed on the rotating member 310, the rotating member 310 and the movable contact assembly are respectively connected to the housing 100 in a rotating manner, and the rotating member 310 is connected to the movable contact assembly through the second connecting member 320.

For example, as shown in fig. 1, the moving contact assembly may include a rotating member 310 and a second connecting member 320 connected to each other, the rotating member 310 being connected to the operating member 200, and the second connecting member 320 being connected to the moving contact assembly. In the implementation of switching on and off, the different transmission forms of the operating element 200 and the rotating element 310 according to the previous embodiment are schematically described:

referring to fig. 1, 2, 7 and 8, a rotation connection hole 312 is formed in the rotation member 310, the rotation member 310 is rotatably disposed on the housing 100 by providing a rotation shaft, a through hole 313 is formed in the rotation member 310, and one end of the second connection member 320 is inserted into the through hole 313 to realize the rotational connection. A row of sector gears is provided as driven protrusions 311 on the outer periphery of the rotor 310. Meanwhile, a row of racks is provided on the operating element 200 body as the driving part 210. The sector gear and the rack are engaged with each other, and the rotation of the rotation member 310 is achieved by the linear motion of the rack.

Referring to fig. 9 and 10, a rotation coupling hole 312 and a through hole 313 are also provided on the rotation member 310. A protrusion is arranged on the periphery of the rotating member 310 as a driven protrusion 311, and meanwhile, the pushing end of the push rod on the operating member 200 body corresponds to the protrusion, so that the linear motion of the operating member 200 drives the rotating member 310 to rotate. Since the protrusions are rotated on the rotation member 310 and the push rods are linearly moved, the height of the protrusions can be reasonably set to compensate for vertical displacement caused by the rotation.

Referring to fig. 11, a rotation coupling hole 312 and a through hole 313 are also provided on the rotation member 310. In addition, it is necessary to further provide a hole for rotatably connecting the first connecting member 220 on each of the operating member 200 and the rotating member 310. That is, the linear motion of the operating member 200 is converted into the rotational motion by the first link 220.

The first connecting member 220 and the second connecting member 320 may be connecting rods, connecting plates, or the like.

Optionally, the movable contact assembly includes a first elastic element 410, a trip assembly 340 and a movable contact; the moving contact is connected with the second connecting member 320, the tripping assembly 340 and the moving contact are respectively connected with the shell 100 in a rotating manner, the first elastic member 410 is connected with the moving contact, the tripping assembly 340 is clamped with the moving contact, and the tripping assembly 340 is used for releasing the clamping with the moving contact when being subjected to a tripping force so as to enable the moving contact to be switched off under the action of a resetting force of the first elastic member 410.

For example, as shown in fig. 3, the movable contact may include a movable contact body 400 and a trip device 330, which are rotatably connected, and the movable contact body 400 and the trip assembly 340 are coaxially and rotatably disposed on the housing 100. The tripping element 330 is connected to the rotating element 310 through the second connecting element 320, and in addition, the tripping element 330 and the tripping element 340 are still in a clamping state at a clamping position 331, the movable contact body 400 and the tripping element 340 are also abutted through a third elastic element 341 (torsion spring), that is, one end of the torsion spring is abutted to the movable contact body 400, and the other end is abutted to the tripping element 340, so that the normal tripping element 330, the movable contact body 400 and the tripping element 340 form a stable whole, and the whole clockwise rotation can be integrally generated when the second connecting element 320 pushes the tripping element 330 in the clockwise direction in fig. 3. The movable contact body 400 is further provided with a first elastic element 410, such as a tension spring in fig. 3, one end of the tension spring is connected with the movable contact body 400, the other end of the tension spring is connected with the housing 100, the first elastic element can provide a switching-off reset force for the movable contact when the movable contact is in a switching-off state (as shown in fig. 1), the second elastic element can provide a switching-on reset force for the movable contact when the movable contact is in a switching-on state (as shown in fig. 2), a switching-on reset force can be provided for the movable contact at a position where the two types of acting forces are switched, that is, when the movable contact is in a switching-on motion, the position of the movable contact is before the switching point, the tension spring provides a switching-off reset force for the movable contact, and after the tension spring passes the switching point, the tension spring provides a switching-on acting force for the movable contact; when the moving contact moves in a brake-separating mode, the moving position of the moving contact is located in front of the switching point, the tension spring provides a closing acting force for the moving contact, and after the moving contact crosses the switching point, the tension spring provides a brake-separating reset force for the moving contact. In this way, the closing and opening speed of the movable contact can be increased by the first elastic element 410.

As shown in fig. 3, when the switching-on operation is required, the operating element 200 drives the rotating element 310 to rotate, the rotating element 310 drives the trip unit 330 to move clockwise through the second connecting element 320, and at this time, because the trip unit 330 and the trip unit 340 are in a clamping state, the entire moving contact unit rotates clockwise until the switching-on operation is completed.

After a fault occurs and tripping and opening are needed, the release can apply a tripping force to the tripping assembly 340, at this time, the tripping assembly 340 rotates, and the clamping position 331 of the tripping assembly 340 and the tripping element 330 gradually slides due to the rotation of the tripping assembly 340, as shown in fig. 5, when the tripping assembly 340 and the tripping element 330 are completely separated from each other, as shown in fig. 4 and 6, until the clamping state is released, at this time, the stable structure formed by the tripping element 330, the tripping assembly 340 and the movable contact body 400 is damaged, and under the action force of the first elastic element 410, the movable contact is pulled to return to the tripping position. Since the stable state of the whole mechanism is destroyed, the second elastic element 350 (torsion spring) disposed on the rotating element 310 drives the rotating element 310 to return to the state shown in fig. 1, and further pulls the operating element 200, the first connecting element 220, the trip element 330, and the like to return to the state shown in fig. 1, at this time, the trip element 330 and the trip element 340 complete the clamping.

Optionally, the electromagnetic trip device 600 and the thermal trip device 700 are further included, and the electromagnetic trip device 600 and the thermal trip device 700 are respectively in driving connection with the trip assembly 340.

Illustratively, as shown in fig. 2 and 4, the actuating end of the electromagnetic trip 600 cooperates with the protrusion at the lower end of the trip assembly 340 to drive, so as to perform stable and reliable breaking when the circuit breaker is in fault. As shown in fig. 4, an arc hole is formed in the trip assembly 340, and the thermal trip unit 700 may be inserted into the arc hole through a guide link to be connected to the trip assembly 340, so that when an overload fault occurs, the thermal trip unit 700 is deformed by being heated to drive the guide link to pull the trip assembly 340 to achieve tripping. The stability of the circuit breaker is further improved.

Optionally, as shown in fig. 4, a second elastic member 350 is further included, and the second elastic member 350 is connected to the rotating member 310 and is used for providing a reset force to the rotating member 310 to return to the position of the open state when the trip assembly 340 and the trip unit 330 are released from the engagement.

In another aspect of the embodiment of the present invention, a circuit breaker is provided, which includes a static contact 500 and any one of the above-mentioned operating mechanisms; the fixed contact 500 is disposed in the housing 100 of the operating mechanism and corresponds to a movable contact component of the operating mechanism.

In an example, the operating mechanism is used for a circuit breaker, and meanwhile, a static contact 500 corresponding to a moving contact component in the operating mechanism is arranged in the shell 100, so that the operating element 200 of the operating mechanism moves linearly to drive the operating mechanism to drive the moving contact component to move, switching on and switching off with the static contact 500 are completed, the operating range of the operating element during switching on and switching off can be reduced, interference with peripheral components due to the fact that the switching on and switching off range is large is avoided, and the operability of the circuit breaker is improved. Meanwhile, the smoothness of movement of the operating mechanism after force application can be improved, and the reliability of operation of the breaker in opening and closing is further 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 (10)

1. An operating mechanism, comprising: the operating piece, the action mechanism and the moving contact component are arranged in the shell; the operating part is in driving connection with the action mechanism, the action mechanism is in driving connection with the moving contact assembly, and the operating part is used for driving the action mechanism to drive the moving contact assembly to be switched on or switched off through linear motion after being stressed.

2. The operating mechanism according to claim 1, wherein the operating member includes an operating member body and a driving portion which are connected to each other; the action mechanism comprises an action component and a driven convex part which are connected with each other; the action component is in driving connection with the moving contact component; the driving part is used for driving the driven convex part to drive the action component to drive the moving contact component to switch on or switch off when the operation component body moves linearly.

3. The operating mechanism according to claim 2, wherein the driving portion is a push rod, and a side wall of the follower projection corresponds to a pushing end of the push rod for abutting against the side wall of the follower projection when the operating element body is linearly moved.

4. The operating mechanism according to claim 2 wherein said driving portion is a rack gear, said driven protrusion is a gear portion, said rack gear is in driving connection with said gear portion, said rack gear is used for driving said gear portion to move when said operating member body moves linearly.

5. The operating mechanism of claim 1 wherein said operating member is connected to said actuating mechanism by a first connecting member for driving said actuating mechanism through said first connecting member upon linear movement of said operating member.

6. The operating mechanism according to any one of claims 2 to 4, wherein said actuating member includes a rotating member and a second connecting member, said driven protrusion is disposed on said rotating member, said rotating member and said movable contact member are respectively rotatably connected to said housing, and said rotating member is connected to said movable contact member through said second connecting member.

7. The operating mechanism of claim 6 wherein said movable contact assembly includes a first resilient member, a trip assembly and a movable contact; the moving contact is connected with the second connecting piece, the tripping component and the moving contact are respectively in rotating connection with the shell, the first elastic piece is connected with the moving contact, the tripping component is clamped with the moving contact, and the tripping component is used for releasing clamping connection with the moving contact when being subjected to tripping force so that the moving contact is switched off under the action of the resetting force of the first elastic piece.

8. The operating mechanism of claim 7 further comprising an electromagnetic trip and a thermal trip, said electromagnetic trip and said thermal trip each drivingly connected to said trip assembly.

9. The operating mechanism of claim 6 further comprising a second resilient member coupled to said rotatable member for providing a restoring force to said rotatable member.

10. A circuit breaker comprising a stationary contact and an operating mechanism as claimed in any one of claims 1 to 9; the static contact is arranged in the shell of the operating mechanism and corresponds to the moving contact component of the operating mechanism.

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