Electric operation module and circuit breaker

Abstract

The invention relates to the technical field of low-voltage electric appliances, in particular to an electric operation module and a circuit breaker. The electric operation module provided by the invention comprises a driving mechanism and a handle assembly, the driving mechanism comprises a gear assembly and a driving assembly; the handle assembly comprises a handle body and a driven half gear, the gear assembly is provided with a driving half gear, and the driving half gear can be meshed with the driven half gear through forward rotation to drive the handle body to move from an opening position to a closing position; in the forward rotation direction of the driving half gear, the last-stage tooth of the driving half gear is a lengthened tooth; when the driving half gear drives the driven half gear to enable the handle body to complete the closing action, the lengthened teeth drive the driven half gear to be separated from the tooth profile range of other teeth of the driving half gear through the last-stage driven surface of the driven half gear, so that the driving half gear can rotate reversely and reset. Therefore, the action continuity, reliability and cycle working capability of the driving mechanism are ensured.

Description

Technical Field

[0001] This invention relates to the field of low-voltage electrical technology, and in particular to an electric operating module and a circuit breaker. Background Technology

[0002] The electric operating module of a circuit breaker is the core unit for realizing remote electric opening and closing and safety interlocking functions. It typically includes a drive mechanism (motor and gear transmission system), actuating components (such as linkages), and status feedback components (such as handle assemblies and detection switches). Among them, the output gear (drive half gear) of the drive mechanism directly meshes with the driven part of the handle assembly, which is the final link in transmitting power.

[0003] In traditional designs, the drive half-gear is often a full-tooth gear or a conventional half-tooth gear. When using such a gear drive component that integrates a handle gear, after the closing action is completed and the motor needs to drive the gear to rotate in the opposite direction for reset, the handle gear will remain within the tooth profile range of the drive half-gear. This causes mechanical interference with the gear's reverse reset motion, preventing the gear from smoothly returning to its initial position (such as the free position) and affecting the next operating cycle. To solve this interference problem, it is usually necessary to add a complex separation mechanism or increase the gear return space, but this will increase the number of parts, structural complexity, and module size. Therefore, how to design a drive mechanism that can drive the handle to close the circuit and then smoothly reset without interference within a highly integrated and compact space has become a key technical problem for improving the reliability and miniaturization of electric operating modules. Summary of the Invention

[0004] The purpose of this invention is to provide an electric operating module and a circuit breaker to solve the technical problem in the prior art that the drive gear cannot be smoothly reversed and reset after the drive handle is closed due to meshing interference with the handle gear.

[0005] In a first aspect, the present invention provides an electric operating module for a circuit breaker, the electric operating module comprising: a drive mechanism and a handle assembly; The drive mechanism includes a gear assembly and a drive assembly for driving the gear assembly; The handle assembly includes a handle body and a driven half gear disposed on the handle body. The handle body has a closed position and a closed position by rotation. The gear assembly has a driving half gear. The driving half gear can mesh with the driven half gear by rotating forward to drive the handle body from the closed position to the closed position. Along the forward rotation direction of the drive half gear, the last tooth of the drive half gear is an extended tooth; When the drive half gear drives the driven half gear to complete the closing action of the handle body, the extended tooth drives the driven half gear through the last stage driven surface of the driven half gear to disengage from the tooth profile range of the remaining teeth of the drive half gear, so that the drive half gear can reverse and reset.

[0006] In an optional embodiment, the gear assembly includes: a primary gear, a secondary gear, and a tertiary gear arranged sequentially along the power transmission direction; The primary gear is connected to the drive assembly in a transmission connection; The three-stage gear includes a three-stage transmission gear and the drive half gear arranged coaxially.

[0007] In an optional implementation, the electric operation module further includes a first detection switch; The drive half gear is disposed at one end of the three-stage transmission gear, and a boss is disposed at the other end of the three-stage transmission gear; When the three-stage gear reverses, it passes through the first position and the second position in sequence. The boss includes a first driving part for triggering the first detection switch when the three-stage transmission gear rotates to the first position.

[0008] In an optional embodiment, after the three-stage transmission gear reverses from the first position to the second position, the extended tooth moves to the closing path of the driven half gear, thereby blocking the driven half gear to restrict the circuit breaker from closing.

[0009] In an optional embodiment, a linkage is also included. The first driving unit is further configured to drive the linkage to rotate and move to the movement path of the linkage shaft of the circuit breaker during the circuit breaker closing process as the three-stage transmission gear reverses from the first position to the second position, thereby blocking the linkage shaft to restrict the circuit breaker closing.

[0010] In an optional implementation, a second detection switch is also included; The boss also includes a second drive unit for triggering the second detection switch when the third-stage transmission gear is reversed to the second position; or; The linkage also includes a third drive unit for triggering the second detection switch when the third-stage transmission gear reverses to the second position.

[0011] In an optional embodiment, the linkage includes: a rotating part, a driven part, and a blocking part; The driven part is used to receive the drive of the first driving part after the circuit breaker is opened, so that the linkage rotates around the axis of the rotating part. The blocking part is used to rotate with the linkage and move to the movement path of the linkage shaft during the circuit breaker closing process when the driven part is driven, thereby restricting the circuit breaker closing by blocking the linkage shaft; The driven part and the blocking part are both located on the side of the rotating part facing the driving mechanism.

[0012] In an optional embodiment, the linkage further includes a release part; The tripping section is used to receive the pull of the tripping output terminal after the circuit breaker is closed, so that the linkage rotates around the axis of the rotating section. The blocking part is also used to rotate with the linkage and move to the movement path of the linkage shaft during the closing process of the circuit breaker when the tripping part is driven, so as to trip and open the circuit breaker by moving the linkage shaft. The tripping part is located on the side of the rotating part facing the drive mechanism.

[0013] In an optional embodiment, the primary gear and the tertiary gear are coaxially arranged along the width direction of the electric operating module.

[0014] In an optional embodiment, the drive assembly includes a motor and a drive worm gear that are connected in a transmission relationship; The primary gear includes a primary turbine and a primary pinion arranged coaxially, and the primary turbine meshes with the drive worm. The secondary gear includes a secondary large gear and a secondary small gear arranged coaxially, and the secondary large gear meshes with the primary small gear. The third-stage transmission gear meshes with the second-stage pinion.

[0015] In an optional embodiment, the handle assembly further includes a handle linkage shaft and a handle linkage component, wherein the handle body, the handle linkage shaft, and the handle linkage component are connected by a transmission connection, and the handle linkage shaft is used to connect to the body of the circuit breaker. The handle linkage is provided with a closing drive unit, and the electric operation module also includes a detection switch provided at the closing position. The closing drive unit is used to drive the detection switch when the handle body moves to the closing position. and / or; The handle linkage is provided with a tripping drive unit, and the electric operation module also includes a detection switch located at the tripping position. The tripping drive unit is used to drive the detection switch when the handle body moves to the tripping position.

[0016] In an optional embodiment, the body of the circuit breaker is located at one end of the handle body; The handle linkage is located at the end of the handle body that is away from the body of the circuit breaker.

[0017] In an optional embodiment, it further includes a housing, a first circuit board, and a second circuit board; The housing includes a middle cover and a first shell and a second shell that can be fastened to each other. The first shell, the first circuit board, the middle cover, the second circuit board and the second shell are stacked sequentially along the width direction of the housing. The middle cover is provided with a first positioning structure on the side facing the first shell for positioning at least one of the gear assembly, the handle assembly, the motor, and the trip unit.

[0018] In an optional embodiment, the middle cover is provided with a second positioning structure on the side facing the second shell.

[0019] In an optional implementation, a housing and a trip unit are also included; The drive mechanism, the trip unit, and the handle assembly are all disposed within the housing, and the drive assembly includes a motor; The axis of the trip unit output shaft and the axis of the motor output shaft are parallel and spaced apart along the height direction of the housing, and both the trip unit and the gear assembly are located between two virtual planes formed by the two sides of the upper convex region of the housing extending along the height direction in the length direction.

[0020] In an optional embodiment, it further includes a plurality of external interfaces arranged sequentially along the height direction of the housing on the same side of the length direction of the housing; The external interfaces are provided in three ways: power interface, current transformer interface and communication interface.

[0021] Secondly, the present invention provides a circuit breaker including the electrically operated module described in any of the foregoing embodiments.

[0022] Compared with the prior art, the technical advantages of the electric operating module and circuit breaker provided by the present invention are as follows: The electric operating module provided by this invention is used for a circuit breaker. The electric operating module includes a drive mechanism and a handle assembly. The drive mechanism includes a gear assembly and a drive assembly for driving the gear assembly. The handle assembly includes a handle body and a driven half gear disposed on the handle body. The handle body has a closed position and an open position by rotation. The gear assembly has a drive half gear. The drive half gear can mesh with the driven half gear by rotating forward, driving the handle body from the open position to the closed position. Along the forward rotation direction of the drive half gear, the last tooth of the drive half gear is an extended tooth. When the drive half gear drives the driven half gear to complete the closing action of the handle body, the extended tooth drives the driven half gear through the last driven surface of the driven half gear to disengage from the tooth profile range of the remaining teeth of the drive half gear, so that the drive half gear can reverse and reset.

[0023] The final tooth of the drive half-gear in the forward rotation direction is constructed as an elongated tooth. When the driven half-gear of the drive half-gear's forward-rotating handle assembly completes its engagement action, the elongated tooth, through a special abutment with the final driven surface of the driven half-gear, pushes the driven half-gear out, disengaging its tooth profile from the meshing range of the remaining conventional teeth of the drive half-gear. This removes mechanical obstacles for the subsequent reverse reset motion of the drive half-gear. When reset is required, the drive half-gear can directly reverse without inter-tooth interference with the driven half-gear, thus ensuring the continuity, reliability, and cyclic operation capability of the drive mechanism. Furthermore, the ingenious structure eliminates the need for additional separating parts, ensuring both functionality and modular compactness.

[0024] The circuit breaker provided by the present invention includes the above-mentioned electric operating module. Therefore, the technical advantages and effects achieved by the circuit breaker include those achieved by the above-mentioned electric operating module, which will not be described in detail here.

[0025] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of one side of the three-stage gear structure provided in an embodiment of the present invention; Figure 2 A schematic diagram of a two-stage gear structure provided in an embodiment of the present invention; Figure 3 A schematic diagram of a first-stage gear structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the other side of the three-stage gear provided in an embodiment of the present invention; Figure 5 A schematic diagram of a drive assembly driving a handle assembly via a gear assembly, provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the engagement between the drive assembly and the gear assembly provided in an embodiment of the present invention; Figure 7 A schematic diagram showing the interaction of the drive assembly, gear assembly, and handle assembly provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the linkage component and linkage shaft cooperation provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the three-stage gear provided in an embodiment of the present invention; Figure 10 This is another schematic diagram of the three-stage gear provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the linkage component installed inside the housing according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the driving mechanism driving the linkage component according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the interior of the housing provided in an embodiment of the present invention; Figure 14 This is a schematic diagram of the interaction between the linkage component and the trip unit provided in an embodiment of the present invention; Figure 15 This is a schematic diagram of the linkage structure provided in an embodiment of the present invention; Figure 16 This is a schematic diagram showing the positions of the handle assembly and the circuit breaker body provided in an embodiment of the present invention; Figure 17 This is a schematic diagram of the handle linkage component installed on the handle body according to an embodiment of the present invention; Figure 18 A schematic diagram of one side of the handle linkage component provided in an embodiment of the present invention; Figure 19 This is a schematic diagram of the other side of the handle linkage component provided in an embodiment of the present invention; Figure 20 This is a schematic diagram showing the position of one side of the handle linkage when the circuit is closed, as provided in an embodiment of the present invention. Figure 21 This is a schematic diagram showing the position of the other side of the handle linkage when the circuit is closed, as provided in an embodiment of the present invention. Figure 22 This is a schematic diagram showing the position of one side of the handle linkage when the circuit breaker is in the open position, as provided in an embodiment of the present invention. Figure 23This is a schematic diagram showing the position of the handle linkage on the other side when the circuit breaker is in the open position, as provided in an embodiment of the present invention. Figure 24 This is a schematic diagram of the handle assembly structure provided in an embodiment of the present invention; Figure 25 Provided for embodiments of the present invention Figure 24 BB cross-section; Figure 26 This is a schematic diagram of the extended tooth moving to the closing path of the driven half gear according to an embodiment of the present invention; Figure 27 This is a schematic diagram of the installation at the first shell provided in an embodiment of the present invention; Figure 28 This is a schematic diagram of the external casing provided in an embodiment of the present invention; Figure 29 A cross-sectional view of the housing provided in an embodiment of the present invention; Figure 30 This is a schematic diagram of the back of the middle cover provided in an embodiment of the present invention; Figure 31 This is a front view of the middle cover provided in an embodiment of the present invention; Figure 32 This is a schematic diagram of the middle cover being installed on the first shell according to an embodiment of the present invention; Figure 33 A front view of the middle cover installed on the first shell according to an embodiment of the present invention; Figure 34 This is a schematic diagram of the second circuit board installation provided in an embodiment of the present invention; Figure 35 This is a schematic diagram of the back structure of the middle cover provided in an embodiment of the present invention; Figure 36 This is a schematic diagram of the front structure of the middle cover provided in an embodiment of the present invention; Figure 37 This is a schematic diagram of the back of the device after the middle cover has been installed, as provided in an embodiment of the present invention. Figure 38 This is a schematic diagram of the internal structure of the electric operating module provided in an embodiment of the present invention.

[0028] Icons: 100-Linkage component; 101-Rotating part; 1010-Positioning connection hole; 102-Driven part; 103-Blocking part; 104-Triggering part; 1041-Notch; 105-Reset contact surface; 200-Linkage shaft; 300-Drive mechanism; 301-Gear assembly; 3011-First stage gear; 30111-First stage worm gear; 30112-First stage pinion; 3012-Second stage gear; 30121-Second stage large gear; 30122-Second stage pinion; 3013- 30131 - Third-stage transmission gear; 30132 - Drive half gear; 30133 - Extended tooth; 30134 - Boss; 30135 - First drive unit; 30136 - Second drive unit; 302 - Drive assembly; 3021 - Motor; 3022 - Drive worm; 400 - Housing; 401 - Middle cover; 4010 - First positioning hole; 4011 - Second positioning hole; 4012 - Motor positioning unit; 4013 - Trip unit positioning unit; 4014 - First circuit board positioning unit. Part; 4015-Spring mounting part; 4016-First status indicator positioning part; 4017-Second circuit board positioning part; 4018-Second circuit board limiting structure; 4019-Second status indicator positioning part; 402-First housing; 403-Second housing; 404-Upper protruding area; 500-Trip unit; 600-Handle assembly; 601-Handle body; 602-Handle linkage shaft; 603-Handle linkage component; 6031-Closing drive part; 6032-Opening drive part; 6033- Handle reset torsion spring; 6034-Hanging spring post; 6035-Snap-on structure; 6036-First stage; 6037-Second stage; 604-Driven half gear; 700-First detection switch; 701-Second detection switch; 702-Close detection switch; 703-Open detection switch; 704-Open status indication detection switch; 800-Circuit breaker body; 900-First circuit board; 901-Second circuit board; 902-Power interface; 903-Instrument transformer interface; 904-Communication interface. Detailed Implementation

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0033] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0034] The specific structure is as follows: Figures 1 to 38 As shown.

[0035] This embodiment provides an electrically operated module for a circuit breaker. The electrically operated module includes a drive mechanism 300 and a handle assembly 600. The drive mechanism 300 includes a gear assembly 301 and a drive assembly 302 for driving the gear assembly 301. The handle assembly 600 includes a handle body 601 and a driven half gear 604 disposed on the handle body 601. The handle body 601 has a closed position and an open position by rotation. The gear assembly 301 has a drive half gear 30132, which can interact with the driven half gear 604 by forward rotation. Half gear 604 engages with the drive handle body 601 to move from the open position to the closed position; along the forward rotation direction of drive half gear 30132, the last tooth of drive half gear 30132 is an extended tooth 30133; when drive half gear 30132 drives driven half gear 604 to complete the closing action of handle body 601, extended tooth 30133 drives driven half gear 604 through the last driven surface of driven half gear 604 to disengage from the tooth profile range of the remaining teeth of drive half gear 30132, so that drive half gear 30132 can reverse and reset.

[0036] In this embodiment, the final tooth of the drive half gear 30132 in the forward rotation direction is constructed as an elongated tooth 30133. When the driven half gear 604 of the drive half gear 30132 completes the closing action of the forward rotation drive handle assembly 600, the elongated tooth 30133, through a special abutment action with the final driven surface of the driven half gear 604, can push out the driven half gear 604, causing its tooth profile to disengage from the meshing range of the remaining conventional teeth of the drive half gear 30132, thus clearing the mechanical obstacle for the subsequent reverse reset movement of the drive half gear 30132. When reset is required, the drive half gear 30132 can directly reverse without inter-tooth interference with the driven half gear 604, thereby ensuring the continuity, reliability, and cyclic working capability of the drive mechanism 300. Furthermore, the structure is ingenious, requiring no additional separation parts, and ensuring the compactness of the module while achieving the function.

[0037] Specifically, the drive mechanism 300 includes a drive assembly 302 and a gear assembly 301. The drive assembly 302 includes a motor 3021 and a drive worm gear 3022 fixed to its output shaft. The gear assembly 301 includes a primary gear 3011, a secondary gear 3012, and a tertiary gear 3013 that mesh sequentially along the power transmission direction.

[0038] The first-stage gear 3011 is a double-layer gear, comprising a coaxial first-stage worm gear 30111 and a first-stage pinion 30112, with the first-stage worm gear 30111 meshing with the drive worm 3022. The second-stage gear 3012 is also a double-layer gear, comprising a coaxial second-stage large gear 30121 and a second-stage pinion 30122, with the second-stage large gear 30121 meshing with the first-stage pinion 30112. The third-stage gear 3013 comprises a coaxial third-stage transmission gear 30131 and a drive half gear 30132, with the third-stage transmission gear 30131 meshing with the second-stage pinion 30122, and the drive half gear 30132 serving as the final power output component.

[0039] Along the forward rotation direction of the drive half gear 30132 driving the closing action, its last tooth is specially designed as an elongated tooth 30133, with a tip circle radius larger than the other teeth. When the motor 3021 rotates forward, at the instant the driven half gear 604 of the drive half gear 30132 completes the closing action, the elongated tooth 30133 abuts against the final driven surface of the driven half gear 604. This pushes the driven half gear 604 outwards beyond the tooth profile range of the remaining teeth of the drive half gear 30132. Subsequently, when it is necessary to reverse the rotation of the drive half gear 30132 for reset, the motor 3021 reverses. At this time, the reverse reset motion of the drive half gear 30132 is no longer obstructed by the driven half gear 604, achieving a smooth reset without interference. This design fundamentally solves the problem of gear jamming after integrated drive, improving the reliability of the mechanism.

[0040] To achieve overall miniaturization, the gear assembly 301 in this embodiment adopts a highly compact spatial layout. The primary gear 3011 and the tertiary gear 3013 are coaxial along the width direction of the electric operating module. This layout allows the primary gear 3011 and the tertiary gear 3013 to overlap in the width direction of the electric operating module, rather than being arranged sequentially, greatly saving planar space. Specifically, the gears are stacked in multiple layers along the width direction: the first layer consists of a primary pinion 30112 and a secondary large gear 30121; the second layer consists of a primary worm gear 30111 and a drive worm 3022; the third layer consists of a drive half gear 30132; and the fourth layer consists of a secondary pinion 30122 and a tertiary transmission gear 30131. This three-dimensional stacked layout is key to achieving high-density integration of the module.

[0041] At the end of the three-stage transmission gear 30131 opposite to the drive half gear 30132, a boss 30134 is integrated. This boss 30134 is designed with a first drive section 30135 and a second drive section 30136. The boss 30134 is a multi-functional integrated component: firstly, it is a position detection trigger mechanism. The boss 30134 has the first drive section 30135 and the second drive section 30136. The two sides of the first drive section 30135 are configured as two drive surfaces. When the three-stage gear 3013 reverses (e.g., after resetting or during locking), if it rotates to the free position (first position), the first drive surface of the first drive section 30135 will trigger the first detection switch 700; if it rotates to the locked position (second position), the second drive section 30136 will trigger the second detection switch 701. The circuit board can precisely control the stopping of the motor 3021 based on these switch signals. Secondly, the boss 30134 is also a drive structure. Specifically, when the third-stage gear 3013 continues to reverse from the free position to the locked position, the first driving surface of the first drive unit 30135 contacts the driven part 102 of the linkage 100, pushing the linkage 100 to rotate. The blocking part 103 of the linkage 100 then moves onto the movement path of the linkage shaft 200 during the circuit breaker closing process, achieving mechanical locking. When the third-stage gear 3013 rotates forward from the locked position to the free position, the second driving surface of the first drive unit 30135 triggers the first detection switch 700. This design, which integrates position detection and the driving function of the linkage 100 onto the same boss 30134, greatly improves the functional density of the parts, simplifies the structure, reduces the number of parts, and ensures strict synchronization between detection and driving actions.

[0042] The linkage 100 is a key component for implementing safety locking. It includes a rotating part 101, a driven part 102, and a blocking part 103. The linkage 100 is rotatably mounted by engaging with a positioning pin on the housing 400 through a positioning connection hole 1010 on the rotating part 101.

[0043] The driven part 102 and the blocking part 103 are both located on the same side of the rotating part 101 facing the drive mechanism 300 (i.e., facing the gear assembly 301). This same-side centralized layout makes the structural profile of the linkage 100 very compact in the plane perpendicular to its axis of rotation (especially in the length direction of the housing 400), effectively reducing space occupation and creating conditions for the layout of other components.

[0044] The linkage 100 also includes a tripping part 104 and a reset contact surface 105. The tripping part 104 is used to receive the drive of the trip unit 500 when the circuit breaker is closed, causing the linkage 100 to rotate and move the linkage shaft 200 through the blocking part 103 to achieve emergency tripping. The reset contact surface 105 is used to abut against a reset elastic element (such as a torsion spring) so that the linkage 100 is held in the initial position when there is no external force (the blocking part 103 is disengaged from the path of the linkage shaft 200).

[0045] In this embodiment, the blocking part 103, the driven part 102, and the tripping part 104 are arranged sequentially along the width direction of the linkage 100, forming a compact and orderly structure. To ensure effective and reliable driving by the drive mechanism 300, the driven part 102 is designed to extend in the direction of the drive mechanism 300 at a length greater than that of the blocking part 103 and the tripping part 104, thus ensuring contact and force transmission even with limited drive stroke. The end of the tripping part 104 is provided with a specific notch 1041, which forms a stable engagement with the output end of the trip unit 500 in the electric operating module, ensuring the accuracy and reliability of the tripping action transmission.

[0046] In this embodiment, the width direction of the linkage 100 is the same as the width direction of the circuit breaker and the width direction of the electric operating module, that is, the axial direction of the linkage shaft 200 of the circuit breaker.

[0047] Locking process: When mechanical locking is required after the circuit breaker is opened, the circuit control motor 3021 drives the three-stage gear 3013 to reverse. The boss 30134 pushes the driven part 102 of the linkage 100, causing the linkage 100 to rotate. Its blocking part 103 moves to the movement path of the linkage shaft 200 during the circuit breaker closing process, forming a physical block to prevent accidental closing.

[0048] In this embodiment, the locking process can also be achieved in another way. After the three-stage transmission gear 30131 reverses from the first position to the second position, the extended tooth 30133 moves to the closing path of the driven half gear 604 and blocks the driven half gear 604 to limit the circuit breaker closing.

[0049] In this embodiment, the linkage 100 may also include a third drive unit for triggering the second detection switch 701 when the three-stage transmission gear 30131 reverses to the second position, which can also achieve the above-mentioned function.

[0050] The handle assembly 600 includes a handle body 601, a handle linkage shaft 602, and a handle linkage component 603. These three components are connected by a transmission mechanism, and the handle linkage shaft 602 is connected to the operating mechanism of the circuit breaker body 800. The handle body 601 has a closed position and an open position by rotation.

[0051] The handle linkage 603 is located at the end of the handle body 601 furthest from the circuit breaker body 800 (outer side). This arrangement moves the structure required to drive the detection switch out of the confined space and densely packed components of the inner area of ​​the module, avoiding spatial interference with the inner gear assembly 301, etc. The handle linkage 603 is provided with a closing drive unit 6031 and a opening drive unit 6032. The opening drive unit 6032 includes two drive positions, which can drive the opening detection switch 703 and the opening status indication detection switch 704 respectively, realizing independent signal transmission.

[0052] In an optional implementation of this embodiment, the handle linkage component 603 is a separate part. It is fixed to the end hole of the handle body 601 by a snap-fit ​​structure 6035, thereby realizing the transmission connection between the two. Alternatively, it can be fixed by pressing it into the end hole of the handle body 601 with an interference fit. The handle linkage shaft 602 passes through the handle body 601, and its cross-sectional shape matches the corresponding hole on the handle body 601 to transmit torque.

[0053] In an optional implementation of this embodiment, the handle linkage component 603 and the handle linkage shaft 602 are integrally molded or machined. In this case, after the handle linkage shaft 602 passes through the handle body 601, its extended section is directly bent or formed into the handle linkage component 603 with a driving function. This method reduces the number of parts and improves structural strength and assembly efficiency.

[0054] Both of the above connection methods can meet the requirement of "three-way transmission connection".

[0055] In this embodiment, the main body of the handle linkage 603 can be generally described as L-shaped, including a first segment 6036 and a second segment 6037. The second segment 6037 is used to realize the transmission connection with the handle body 601 or the handle linkage shaft 602 (such as snap-fit ​​or as an integral part). The first segment 6036 serves as the function execution segment, on which a closing drive unit 6031 and a opening drive unit 6032 are provided.

[0056] In this embodiment, a handle reset function is provided to ensure that the handle assembly 600 automatically returns to the open position (and drives the circuit breaker to open) after an electric closing operation if a tripping situation occurs. Specifically, the handle reset component is a handle reset torsion spring 6033 fitted onto the handle body 601. A spring post 6034 is provided on the handle linkage 603. One end of the handle reset torsion spring 6033 is fixed (e.g., hung on the housing 400), and the other end is attached to the spring post 6034. When the handle assembly 600 is in the closed position, the handle reset torsion spring 6033 is torsionally charged to store energy. Once the constraint is released (e.g., the trip unit 500 actuates), the stored energy will drive the handle linkage 603 to rotate, thereby causing the entire handle assembly 600 to quickly reset to the open position. The handle reset function can also be implemented using other elastic elements. For example, a tension spring can be used, with one end connected to the housing 400 and the other end connected to a specific attachment point on the handle linkage 603; or a leaf spring can be used to press against the handle linkage 603. Both methods can provide the driving force to reset the handle assembly 600 from the closed position.

[0057] In this embodiment, the electric closing process is as follows: The circuit controls the motor 3021 to rotate forward. Power is transmitted through the drive worm gear 3022 and gear assembly 301, and finally the drive half gear 30132 drives the driven half gear 604 of the handle assembly 600, causing the handle body 601 to move to the closing position. At this time, the closing drive part 6031 of the handle linkage 603 triggers the closing detection switch 702, and the extended tooth 30133 of the drive half gear 30132 pushes the driven half gear 604 out of the meshing area. After closing is completed, the motor 3021 reverses to the boss 30134, triggering the first detection switch 700, and the gear stops in the free position.

[0058] Opening and Locking: After manual opening, the circuit detects that the handle assembly 600 is in the open position (via the opening detection switch 703). Subsequently, the motor 3021 starts, driving the three-stage gear 3013 to reverse. The boss 30134 first drives the linkage 100 to rotate to the locked position (the blocking part 103 enters the path of the linkage shaft 200), and then the second drive part 30136 triggers the second detection switch 701, the motor 3021 stops, and the opening and locking are completed.

[0059] Tripping and opening: When the circuit breaker is closed, if a trip signal is received, the trip unit 500 actuates, driving the tripping part 104 of the linkage 100 to rotate rapidly. Its blocking part 103 strikes the linkage shaft 200, triggering the internal tripping mechanism of the circuit breaker to achieve rapid opening. Simultaneously, the handle reset torsion spring 6033 drives the handle assembly 600 to reset to the open position.

[0060] Unlock: After pressing the unlock button, motor 3021 starts and rotates forward until boss 30134 triggers the first detection switch 700, and the gear stops in the free position. At this time, the circuit breaker can be closed.

[0061] In this embodiment, the housing 400 includes a middle cover 401 and a first housing 402 and a second housing 403 that can be fastened to each other. The first housing 402, the first circuit board 900, the middle cover 401, the second circuit board 901 and the second housing 403 are stacked sequentially along the width direction of the housing 400. The middle cover 401 is provided with a first positioning structure on the side facing the first housing 402 for positioning at least one of the first circuit board 900, the gear assembly 301, the handle assembly 600, the motor 3021 and the trip unit 500. The middle cover 401 is provided with a second positioning structure on the side facing the second housing 403 for positioning the second circuit board 901.

[0062] In this embodiment, a middle cover 401 is provided between the first shell 402 and the second shell 403, which divides the internal space into two main areas along the width of the shell 400. The two side surfaces of the middle cover 401 integrate positioning structures with different functions. The first positioning structure facing the first shell 402 is used to position the first circuit board 900 and multiple mechanical moving parts (such as the gear assembly 301, handle assembly 600, motor 3021, and trip unit 500), while the second positioning structure facing the second shell 403 is specifically used to position the second circuit board 901. This bidirectional integrated positioning design transfers the positioning function of the second circuit board 901 from the traditional reliance on the top cover to an independent intermediate component (middle cover 401). The second circuit board 901 can be directly and securely installed and positioned on the middle cover 401 during assembly, without waiting for the top cover to be installed or needing to pre-drill holes for the long positioning posts of the top cover, thus ensuring the integrity of the second circuit board 901, ease of installation, and accurate and reliable positioning. Meanwhile, the Zhonggai 401 also serves as the mounting framework for mechanical components, simplifying the assembly process, improving the overall structural rigidity and stability of the module, and providing key support for the reliable realization of highly integrated electric operation modules.

[0063] Specifically, the middle cover 401, as an independent rigid component, serves the core function of bidirectional positioning and spatial separation. The side of the middle cover 401 facing the first shell 402 (defined as the mounting side) integrates a first positioning structure for positioning a series of mechanical moving parts and the first circuit board 900. The side of the middle cover 401 facing the second shell 403 (defined as the cover side) integrates a second positioning structure specifically for positioning the second circuit board 901. This shifts the precise positioning function of the second circuit board 901, traditionally performed by the final assembly (second shell 403), to the independent intermediate component, the middle cover 401. This eliminates the need for a long positioning post penetrating the second circuit board 901 during installation, ensuring the integrity of its wiring and components. Simultaneously, the second circuit board 901 can achieve precise and stable positioning midway through the assembly process, greatly simplifying the assembly steps and improving production efficiency and the overall structural stability and reliability of the module.

[0064] The first positioning structure on the mounting side of the middle cover 401 is a multi-functional integrated unit, specifically including: axial positioning of the gear assembly 301 and the handle assembly 600: The first positioning structure includes a first positioning hole 4010 and a second positioning hole 4011. The first positioning hole 4010 is used to mate with the positioning shaft of a certain stage gear (such as a third-stage gear) in the gear assembly 301 to ensure accurate axial positioning of the gear. The second positioning hole 4011 is used to mate with the positioning shaft of the handle assembly 600 for positioning. Through the first positioning hole 4010 and the second positioning hole 4011, the middle cover 401 achieves precise installation positioning. Of course, the first positioning hole 4010 and the second positioning hole 4011 can be selected or both can be provided, and multiple first positioning holes 4010 can be provided.

[0065] Contour positioning of motor 3021 and trip unit 500: The first positioning structure includes a motor positioning part 4012 and a trip unit positioning part 4013. The motor positioning part 4012 can be a groove or enclosure matching the shape of the motor 3021 housing, restricting the movement of motor 3021 in a plane. Similarly, the trip unit positioning part 4013 can be a slot or limiting surface that matches the shape of the trip unit 500, ensuring accurate installation of the trip unit 500 and reliable alignment of its output end with driven components such as linkages.

[0066] Positioning and limiting of the first circuit board 900: The first positioning structure includes one or more first circuit board positioning parts 4014. These first circuit board positioning parts 4014 may be protruding snaps, platforms, or limiting blocks. When the first circuit board 900 is placed on the first housing 402 and close to the middle cover 401, the first circuit board positioning parts 4014 abut against the edge or specific structure of the first circuit board 900 from the side or top, mainly limiting the movement of the first circuit board 900 along the width direction of the housing 400 and preventing it from loosening.

[0067] Positioning of the status indicator: The first positioning structure also includes a first status indicator positioning part 4016, which is used to limit or guide the positioning of the status indicator mounted on the first circuit board 900 to ensure the display effect.

[0068] The second positioning structure on the side of the middle cover 401 cover plate is specifically designed for the second circuit board 901 to ensure that it is installed firmly and in a precise position.

[0069] Pre-installation support for the return spring: The second positioning structure includes a spring-hanging part 4015. The spring-hanging part 4015 can be a protruding cylinder or a hook. During assembly, one end of the handle return torsion spring 6033 can be first hooked onto the spring-hanging part 4015 to achieve pre-positioning of the spring, and then the handle assembly 600 can be installed so that the other end of the spring is connected to the handle linkage 603, which greatly simplifies the assembly difficulty of this elastic component.

[0070] Width Direction Limitation: The second positioning structure includes one or more second circuit board positioning portions 4017. These second circuit board positioning portions 4017 can be bosses or claws. When the second circuit board 901 is mounted against the middle cover 401, the second circuit board positioning portions 4017 abut against the second circuit board 901 from the back (i.e., the side facing the second housing 403), restricting its movement in the width direction toward the middle cover 401, ensuring that the second circuit board 901 and the middle cover 401 maintain a set distance.

[0071] In-plane limiting: The second positioning structure also includes several second circuit board limiting structures 4018. These second circuit board limiting structures 4018 can be limiting ribs or limiting bosses, distributed around the second circuit board 901 or at key corners. When the second circuit board 901 is placed in position, the second circuit board limiting structures 4018 restrict its movement within the plane of the circuit board itself, preventing it from sliding or deflecting, and ensuring that the connectors on it are accurately aligned with the external interfaces.

[0072] Status indicator positioning: The second positioning structure also includes a second status indicator positioning part 4019, which is used to position the status indicator on the second circuit board 901 to ensure that the light can be accurately transmitted from the window of the second housing 403.

[0073] The assembly process of the electric operating module is as follows.

[0074] Pre-installation of components on the first housing 402 side: First, the drive mechanism 300 (including drive assembly 302 and gear assembly 301, drive assembly 302 includes drive worm gear 3022 and motor 3021 with transmission connection), handle assembly 600, trip unit 500 and first circuit board 900 and other components are initially installed or placed in the corresponding positions of the first housing 402.

[0075] Install the middle cover 401 and perform precise positioning: Close the middle cover 401 onto the first housing 402. During this process, the first positioning hole 4010 and the second positioning hole 4011 on the middle cover 401 engage with the corresponding shafts; the motor positioning part 4012 and the trip unit positioning part 4013 respectively cover or lock the motor 3021 and the trip unit 500; the first circuit board positioning part 4014 contacts and limits contact with the edge of the first circuit board 900. The installation of the middle cover 401 completes the final precise positioning and fixation of all mechanical moving parts and the first circuit board 900. At the same time, the handle return torsion spring 6033 can be pre-hung on the hanging spring part 4015.

[0076] Install and position the second circuit board 901: Place the second circuit board 901 on the cover side of the middle cover 401. The back of the second circuit board 901 contacts the second circuit board positioning part 4017, and its perimeter is restricted within the plane by the second circuit board limiting structure 4018, thereby completing the positioning quickly and accurately. The installation of the second circuit board 901 is completely independent of the second shell 403.

[0077] Enclosed housing 400: Finally, the second housing 403 is fastened to the assembled middle cover 401 and the second circuit board 901, and connected to the first housing 402 with screws and other fasteners to complete the assembly of the entire module.

[0078] In this embodiment, the side of the middle cover 401 facing the second shell 403 may not have a second positioning structure, and the first positioning structure is not used to position the first circuit board 900. That is, the first circuit board 900 and the second circuit board 901 do not necessarily have to be positioned on the middle cover 401. The first circuit board 900 and the second circuit board 901 can be fixedly connected to each other.

[0079] In this embodiment, the status indicator includes a lamp on the circuit board and / or a transparent light guide column for transmitting light. The positioning part of the status indicator is mainly used to position the light guide column.

[0080] In this embodiment, the drive mechanism 300, the trip unit 500, and the handle assembly 600 are all disposed within the housing 400. The axis of the primary gear 3011 and the axis of the secondary transmission component are parallel and spaced apart along the width direction of the housing 400. The axis of the output shaft of the trip unit 500 and the axis of the output shaft of the motor 3021 are parallel and spaced apart along the height direction of the housing 400, and are both located between the two virtual planes formed by the two sides of the upper convex region 404 of the housing 400 extending along the height direction in the length direction.

[0081] In this embodiment, the first-stage gear 3011 and the third-stage gear 3013 are coaxially arranged along the width direction to achieve a compact stacking of the gear set, saving planar space in the length and height directions. Based on this, the axes of the motor 3021 and the trip unit 500 are further arranged to be parallel and spaced apart along the height direction, and both are constrained between the virtual planes defined by the two sides of the upper convex region 404 of the housing 400 along the length direction. Through this layout, combined with the other positional relationships of components such as the gear assembly 301 and the handle assembly 600, a high degree of integration and optimized arrangement of the functional components inside the entire electric operating module in three-dimensional space is achieved. Centralizing the core components avoids disordered extension in the length direction while ensuring that the movement of each component is free from interference. This allows for effective control of the dimensions of the electric operating module in the length, height, and width dimensions, achieving an extremely compact overall structure and creating conditions for the installation and application of circuit breakers in smaller spaces.

[0082] Specifically, the housing 400 of the electric operating module has an upwardly protruding region 404. This upwardly protruding region 404 extends along the length of the housing 400 on both sides, forming two virtual planes along the height direction. The electric operating module internally includes a drive mechanism 300, a trip unit 500, and a handle assembly 600.

[0083] In this embodiment, the axis of the drive worm gear 3022 and the axis of the output shaft of the trip unit 500 are set to be parallel and spaced apart along the height direction of the housing 400. Furthermore, both the axis of the drive worm gear 3022 and the axis of the output shaft of the trip unit 500 are located between two virtual longitudinal planes defined by the two side edges of the convex region 404. This layout strictly limits the length of the two relatively large components, the motor 3021 and the trip unit 500, to the width of the convex region 404, preventing unnecessary widening of the module in the length direction.

[0084] In this embodiment, the gear assembly 301 and the trip unit 500 are positioned relative to the motor 3021 as follows: along the length of the housing 400, both the gear assembly 301 and the trip unit 500 are located on the same side (e.g., the left side) of the output shaft axis of the motor 3021. This offset layout makes the power transmission path clear and facilitates the arrangement of other components (such as the circuit board interface area) on the other side. The handle assembly 600 is located within the upper convex region 404 of the housing 400, and along the height direction, its position is higher than that of the gear assembly 301, effectively utilizing the three-dimensional space of the upper convex region 404.

[0085] In this embodiment, the external interfaces are arranged as follows: the external interfaces of the electric operating module (such as power interface 902, current transformer interface 903, and communication interface 904) are arranged sequentially along the height of the housing 400 and concentrated on the same side of the length of the housing 400. This centralized, vertically arranged interface layout facilitates user wiring and saves space occupied by the interfaces in the length and width directions.

[0086] It should be noted that the secondary transmission component is specifically implemented as a secondary gear 3012. It can be understood that the secondary transmission component can also be other non-gear transmission mechanisms, such as a worm gear. In this case, the primary gear 3011 may include a primary worm wheel 30111, and the tertiary gear 3013 may include a tertiary worm wheel. Connecting the two through this worm gear can also achieve power transmission and direction conversion, and can adapt to specific spatial layout requirements.

[0087] This embodiment also provides a circuit breaker, which includes the aforementioned electric operating module and the circuit breaker body 800. The drive mechanism 300, linkage 100, and handle assembly 600 of the electric operating module work together to provide the circuit breaker with reliable electric operation, status indication, and safety interlocking functions, and the overall structure is compact with high space utilization.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrically operated module for a circuit breaker, characterized in that, The electric operation module includes: a drive mechanism (300) and a handle assembly (600). The drive mechanism (300) includes a gear assembly (301) and a drive assembly (302) for driving the gear assembly (301). The handle assembly (600) includes a handle body (601) and a driven half gear (604) disposed on the handle body (601). The handle body (601) has a closed position and a closed position by rotation. The gear assembly (301) has a driving half gear (30132). The driving half gear (30132) can mesh with the driven half gear (604) by rotating forward, driving the handle body (601) from the closed position to the closed position. Along the forward rotation direction of the drive half gear (30132), the last tooth of the drive half gear (30132) is an extended tooth (30133). When the drive half gear (30132) drives the driven half gear (604) to make the handle body (601) complete the closing action, the extended tooth (30133) drives the driven half gear (604) to the tooth profile range of the remaining teeth of the drive half gear (30132) through the last stage driven surface of the driven half gear (604), so that the drive half gear (30132) can reverse and reset.

2. The electric operating module according to claim 1, characterized in that, The gear assembly (301) includes a first-stage gear (3011), a second-stage gear (3012), and a third-stage gear (3013) arranged sequentially along the power transmission direction. The primary gear (3011) is connected to the drive assembly (302) in a transmission connection; The three-stage gear (3013) includes a three-stage transmission gear (30131) and a drive half gear (30132) arranged coaxially.

3. The electric operating module according to claim 2, characterized in that, The electric operation module also includes a first detection switch (700); The drive half gear (30132) is disposed at one end of the three-stage transmission gear (30131), and a boss (30134) is disposed at the other end of the three-stage transmission gear (30131). When the third-stage gear (3013) reverses, it passes through the first position and the second position in sequence. The boss (30134) includes a first drive unit (30135) for triggering the first detection switch (700) when the third-stage transmission gear (30131) rotates to the first position.

4. The electric operating module according to claim 3, characterized in that, After the three-stage transmission gear (30131) reverses from the first position to the second position, the extended tooth (30133) moves to the closing path of the driven half gear (604) and blocks the driven half gear (604) to restrict the circuit breaker from closing.

5. The electric operating module according to claim 3, characterized in that, It also includes a linkage (100), and the first drive unit (30135) is also used to drive the linkage (100) to rotate and move to the movement path of the linkage shaft (200) of the circuit breaker during the process of the three-stage transmission gear (30131) reversing from the first position to the second position, thereby restricting the circuit breaker from closing by blocking the linkage shaft (200).

6. The electric operating module according to claim 5, characterized in that, It also includes a second detection switch (701); The boss (30134) also includes a second drive unit (30136) for triggering the second detection switch (701) when the third-stage transmission gear (30131) is reversed to the second position. or; The linkage (100) also includes a third drive unit for triggering the second detection switch (701) when the third-stage transmission gear (30131) is reversed to the second position.

7. The electric operating module according to claim 5, characterized in that, The linkage (100) includes: a rotating part (101), a driven part (102), and a blocking part (103). The driven part (102) is used to receive the drive of the first driving part (30135) after the circuit breaker is opened, so that the linkage (100) rotates around the axis of the rotating part (101); The blocking part (103) is used to rotate with the linkage (100) and move to the movement path of the linkage shaft (200) during the circuit breaker closing process when the driven part (102) is driven, thereby restricting the circuit breaker closing by blocking the linkage shaft (200). The driven part (102) and the blocking part (103) are both located on the side of the rotating part (101) facing the driving mechanism (300).

8. The electric operating module according to claim 7, characterized in that, The linkage (100) also includes a tripping part (104). The tripping part (104) is used to receive the pull of the output end of the tripping unit (500) after the circuit breaker is closed, so that the linkage (100) rotates around the axis of the rotating part (101); The blocking part (103) is also used to rotate with the linkage (100) and move to the movement path of the linkage shaft (200) during the circuit breaker closing process when the tripping part (104) is driven, so as to trip and open the circuit breaker by moving the linkage shaft (200). The tripping part (104) is located on the side of the rotating part (101) facing the driving mechanism (300).

9. The electric operating module according to claim 2, characterized in that, The first-stage gear (3011) and the third-stage gear (3013) are coaxially arranged along the width direction of the electric operating module.

10. The electric operating module according to claim 9, characterized in that, The drive assembly (302) includes a motor (3021) and a drive worm gear (3022) that are connected in a transmission. The primary gear (3011) includes a primary turbine and a primary pinion (30112) arranged coaxially, and the primary turbine meshes with the drive worm (3022); The secondary gear (3012) includes a secondary large gear (30121) and a secondary small gear (30122) arranged coaxially, wherein the secondary large gear (30121) meshes with the primary small gear (30112); The third-stage transmission gear (30131) meshes with the second-stage pinion (30122).

11. The electric operating module according to any one of claims 1-10, characterized in that, The handle assembly (600) further includes a handle linkage shaft (602) and a handle linkage component (603). The handle body (601), the handle linkage shaft (602) and the handle linkage component (603) are connected by a transmission. The handle linkage shaft (602) is used to connect with the body of the circuit breaker. The handle linkage (603) is provided with a closing drive unit (6031), and the electric operation module also includes a detection switch provided at the closing position. The closing drive unit (6031) is used to drive the detection switch when the handle body (601) moves to the closing position. and / or; The handle linkage (603) is provided with a tripping drive unit (6032), and the electric operation module also includes a detection switch provided at the tripping position. The tripping drive unit (6032) is used to drive the detection switch when the handle body (601) moves to the tripping position.

12. The electric operating module according to claim 11, characterized in that, The circuit breaker body is located at one end of the handle body (601); The handle linkage (603) is located at one end of the handle body (601) away from the body of the circuit breaker.

13. The electric operating module according to any one of claims 1-10, characterized in that, It also includes a housing (400), a first circuit board (900), and a second circuit board (901); The housing (400) includes a middle cover (401) and a first shell (402) and a second shell (403) that can be fastened to each other. The first shell (402), the first circuit board (900), the middle cover (401), the second circuit board (901) and the second shell (403) are stacked sequentially along the width direction of the housing (400). The middle cover (401) is provided with a first positioning structure on the side facing the first shell (402) for positioning at least one of the gear assembly (301), the handle assembly (600), the motor (3021) and the trip unit (500).

14. The electric operating module according to claim 13, characterized in that, The middle cover (401) is provided with a second positioning structure on the side facing the second shell (403).

15. The electric operating module according to any one of claims 1-9, characterized in that, It also includes a housing (400) and a trip unit (500); The drive mechanism (300), the trip unit (500) and the handle assembly (600) are all disposed within the housing (400), and the drive assembly (302) includes a motor (3021). The axis of the output shaft of the trip unit (500) and the axis of the output shaft of the motor (3021) are parallel and spaced apart along the height direction of the housing (400), and both the trip unit (500) and the gear assembly (301) are located between two virtual planes formed by the two sides of the upper convex region (404) of the housing (400) extending along the height direction in the length direction.

16. The electrically operated module according to claim 15, characterized in that, It also includes a plurality of external interfaces arranged sequentially along the height direction of the housing (400) on the same side of the length direction of the housing (400); The external interfaces are provided in three ways: power interface (902), transformer interface (903), and communication interface (904).

17. A circuit breaker, characterized in that, Includes the electric operating module as described in any one of claims 1-16.

Images