阅读说明：本技术 一种智能微型断路器 (Intelligent miniature circuit breaker ) 是由 鲁开智 潘绪 彭子龙 黄小勇 黄正乾 于 2021-11-04 设计创作，主要内容包括：本发明提供一种智能微型断路器,包括基座,在基座内分别设有操作机构、马达组件、按钮机构以及PCB控制板；在基座内还安装有动作执行机构以及用于监控断路器位置状态的位置监测机构；所述动作执行机构能在马达组件与按钮机构的带动下控制操作机构分合闸,还能在马达组件驱动下控制操作机构脱扣；所述位置监测机构与PCB控制板电连接并能将断路器位置状态信号传输给PCB控制板,PCB控制板根据断路器位置状态信号自动控制马达组件的运行或停止。本发明结构紧凑,安装简单,单机功能强大,能自动检测断路器的位置状态,而且动作稳定可靠,能满足通讯机柜对空间的要求,另外还具备防盗用功能,若未经过授权,就不能进行合闸操作。(The invention provides an intelligent miniature circuit breaker, which comprises a base, wherein an operating mechanism, a motor assembly, a button mechanism and a PCB control board are respectively arranged in the base; the base is also internally provided with an action executing mechanism and a position monitoring mechanism for monitoring the position state of the circuit breaker; the action executing mechanism can control the opening and closing of the operating mechanism under the driving of the motor component and the button mechanism, and can also control the tripping of the operating mechanism under the driving of the motor component; the position monitoring mechanism is electrically connected with the PCB control board and can transmit the position state signal of the circuit breaker to the PCB control board, and the PCB control board automatically controls the operation or stop of the motor assembly according to the position state signal of the circuit breaker. The invention has compact structure, simple installation, powerful single machine function, stable and reliable action, capability of automatically detecting the position state of the circuit breaker, capability of meeting the space requirement of a communication cabinet, anti-theft function and incapability of switching-on operation without authorization.)

1. An intelligent miniature circuit breaker comprises a base, wherein an operating mechanism, a motor assembly, a button mechanism and a PCB control board are respectively arranged in the base; the method is characterized in that: the base is also internally provided with an action executing mechanism and a position monitoring mechanism for monitoring the position state of the circuit breaker; the action executing mechanism can control the opening and closing of the operating mechanism under the driving of the motor component and the button mechanism, and can also control the tripping of the operating mechanism under the driving of the motor component; the position monitoring mechanism is electrically connected with the PCB control board and can transmit the position state signal of the circuit breaker to the PCB control board, and the PCB control board automatically controls the operation or stop of the motor assembly according to the position state signal of the circuit breaker.

2. The intelligent miniature circuit breaker of claim 1 wherein: the action executing mechanism comprises an inner handle which is rotatably arranged in the base, a gear which is rotatably sleeved outside the inner handle, a swing rod which is arranged between the gear and the operating mechanism and can swing left and right, a jump buckle pull rod which is connected with the inner handle and the operating mechanism, and a long pull rod which is connected with the inner handle and the button mechanism; after the inner handle rotates, the operating mechanism can be driven to be switched on and off through the jump buckle pull rod and is linked with the button mechanism through the long pull rod; the gear can push the inner handle to rotate under the drive of the motor component to enable the operating mechanism to be switched on and off, and can also push the swing rod to hit the operating mechanism to enable the operating mechanism to be tripped under the drive of the motor component.

3. The intelligent miniature circuit breaker of claim 2 wherein: the action executing mechanism also comprises a torsion spring and a reset tension spring; one end of the torsion spring is installed at the rear part of the inner handle, and the other end of the torsion spring is installed in an installation groove preset in the base; the reset spring is arranged between the swing rod and the base in a pulling mode and can reset the swing rod after swinging.

4. The intelligent miniature circuit breaker of claim 2 wherein: the motor assembly comprises a motor and a worm arranged on a rotating shaft of the motor; the motor can rotate under the control of the PCB control board and drives the worm to rotate; the worm is meshed with the gear.

5. The intelligent miniature circuit breaker of claim 2 wherein: the position monitoring mechanism comprises a first magnet arranged on the button mechanism, a second magnet arranged on the gear, a first Hall element arranged on the PCB control board corresponding to the second magnet, and a second Hall element and a third Hall element which are respectively arranged on the PCB control board corresponding to the first magnet; when the operating mechanism is switched on, the first magnet moves to a position opposite to the second Hall element along with the button mechanism, and the second Hall element detects a signal and sends the signal to the PCB control board; when the operating mechanism is switched off, the first magnet moves to a position opposite to the third Hall element along with the button mechanism, and the third Hall element detects a signal and sends the signal to the PCB control board; when the operating mechanism is tripped, the second magnet moves to a position opposite to the first Hall element along with the gear, and the first Hall element detects a signal and sends the signal to the PCB control board.

6. The intelligent miniature circuit breaker of claim 5 wherein: the position monitoring mechanism also comprises a micro-break switch which is arranged on the PCB control panel corresponding to the gear; when the operating mechanism completes opening or closing, the PCB control board controls the motor assembly driving gear to rotate reversely according to signals fed back by the second Hall element and the third Hall element until the gear toggles the micro-break switch, the motor assembly stops, the gear is in a free position, and the circuit breaker can perform automatic opening or closing or tripping and can also perform manual opening and closing.

7. The intelligent miniature circuit breaker of claim 6 wherein: a V-shaped clearance groove is formed in the side surface of the inner handle facing the micro-breaking switch; a first convex rib which extends into the clearance groove and is used for pushing the inner handle to rotate is arranged on the front side surface of the gear corresponding to the clearance groove; a second convex rib positioned on the rear side of the first convex rib is arranged on the side wall of the gear, the second convex rib can rotate anticlockwise by a certain angle along with the gear and then can strike the swing rod, and the swing rod swings leftwards under the striking of the second convex rib and then strikes the operating mechanism, so that the operating mechanism is tripped and opened; a convex rib III which is positioned right behind the convex rib I and positioned on the lower side of the convex rib II is arranged on the side wall of the gear; the third convex rib can toggle the micro-break switch after rotating along with the gear.

8. The intelligent miniature circuit breaker of claim 6 wherein: when the PCB control board does not receive an authorization signal, the PCB control board controls the motor assembly to drive the gear to rotate anticlockwise, so that after the gear pushes the swing rod to strike the operating mechanism to trip, the PCB control board controls the motor assembly to stop according to a signal fed back by the Hall element, and manual opening and closing cannot be performed at the moment; when the PCB control board receives the authorization signal, the PCB control board firstly controls the motor component to drive the gear to rotate clockwise until the gear stops rotating after the micro-break switch is toggled, and the gear returns to a free position.

9. The intelligent miniature circuit breaker of claim 6 wherein: the first Hall element, the second Hall element, the third Hall element and the micro-disconnecting switch are welded on the PCB control board.

10. The intelligent miniature circuit breaker of claim 5 wherein: the button mechanism comprises a button movably arranged at the right lower end of the base, a sliding block which can slide left and right and is arranged between the button and the motor component, and a short pull rod with two ends rotatably connected to the sliding block and the button; the first magnet is arranged on the sliding block and can move left and right along with the sliding block and then respectively move right above the second Hall element and the third Hall element; when the first magnet is opposite to the second Hall element, the sliding block is in a switching-on position; the first magnet is opposite to the third Hall element, and the sliding block is located at a brake separating position.

Technical Field

The invention belongs to the technical field of low-voltage electric appliances, and particularly relates to an intelligent miniature circuit breaker.

Background

The 5G communication is a strategic industry which is mainly supported and developed by the country, and 5G network construction is popular. The current common miniature plug-in circuit breakers in the power distribution industry have the following problems:

(1) the existing circuit breaker can not realize the automatic control and position state detection of a single machine.

(2) The existing circuit breaker has too large overall space dimension specification, and does not meet the trend and the requirement of the miniaturization development of the circuit breaker.

(3) The existing circuit breaker is driven by a motor to switch on and off, and cannot realize electric tripping action.

(4) The existing circuit breaker can not realize the function of anti-theft.

Based on the defects, the existing miniature plug-in circuit breaker cannot meet the requirements of miniaturization and intellectualization of a 5G communication cabinet, so that the miniature circuit breaker product specially meeting the 5G requirement is urgently needed to be designed in a customized mode.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide an intelligent miniature circuit breaker, which has a compact structure, a powerful single-machine function, and a stable and reliable action, and can meet the space requirement of a communication cabinet.

The purpose of the invention is realized by the following technical scheme:

an intelligent miniature circuit breaker comprises a base, wherein an operating mechanism, a motor assembly, a button mechanism and a PCB control board are respectively arranged in the base; the base is also internally provided with an action executing mechanism and a position monitoring mechanism for monitoring the position state of the circuit breaker; the action executing mechanism can control the opening and closing of the operating mechanism under the driving of the motor component and the button mechanism, and can also control the tripping of the operating mechanism under the driving of the motor component; the position monitoring mechanism is electrically connected with the PCB control board and can transmit a breaker position state signal (the breaker position state signal indicates the position state of the action executing mechanism and the button mechanism) to the PCB control board, and the PCB control board automatically controls the operation or stop of the motor assembly according to the breaker position state signal.

Furthermore, the action executing mechanism comprises an inner handle which is rotatably arranged in the base, a gear which is rotatably sleeved outside the inner handle, a swing rod which is arranged between the gear and the operating mechanism and can swing left and right, a jump buckle pull rod which is connected with the inner handle and the operating mechanism, and a long pull rod which is connected with the inner handle and the button mechanism; after the inner handle rotates, the operating mechanism can be driven to be switched on and off through the jump buckle pull rod and is linked with the button mechanism through the long pull rod; the gear can push the inner handle to rotate under the drive of the motor component to enable the operating mechanism to be switched on and off, and can also push the swing rod to hit the operating mechanism to enable the operating mechanism to be tripped under the drive of the motor component.

Furthermore, the action executing mechanism also comprises a torsion spring and a reset tension spring; one end of the torsion spring is installed at the rear part of the inner handle, and the other end of the torsion spring is installed in an installation groove preset in the base; the reset spring is arranged between the swing rod and the base in a pulling mode and can reset the swing rod after swinging.

Further, the motor assembly comprises a motor and a worm mounted on a rotating shaft of the motor; the motor can rotate under the control of the PCB control board and drives the worm to rotate; the worm is meshed with the gear.

Furthermore, the position monitoring mechanism comprises a first magnet arranged on the button mechanism, a second magnet arranged on the gear, a first Hall element arranged on the PCB control board corresponding to the second magnet, and a second Hall element and a third Hall element which are respectively arranged on the PCB control board corresponding to the first magnet; when the operating mechanism is switched on, the first magnet moves to a position opposite to the second Hall element along with the button mechanism, and the second Hall element detects a signal and sends the signal to the PCB control board; when the operating mechanism is switched off, the first magnet moves to a position opposite to the third Hall element along with the button mechanism, and the third Hall element detects a signal and sends the signal to the PCB control board; when the operating mechanism is tripped, the second magnet moves to a position opposite to the first Hall element along with the gear, and the first Hall element detects a signal and sends the signal to the PCB control board.

Furthermore, the position monitoring mechanism also comprises a micro-switch which is arranged on the PCB control panel corresponding to the gear; when the operating mechanism completes opening or closing, the PCB control board controls the motor assembly driving gear to rotate reversely according to signals fed back by the second Hall element and the third Hall element until the gear toggles the micro-break switch, the motor assembly stops, the gear is in a free position, and the circuit breaker can perform automatic opening or closing or tripping and can also perform manual opening and closing.

Furthermore, a V-shaped clearance groove is formed in the side surface of the inner handle facing the micro-break switch; a first convex rib which extends into the clearance groove and is used for pushing the inner handle to rotate is arranged on the front side surface of the gear corresponding to the clearance groove; a second convex rib positioned on the rear side of the first convex rib is arranged on the side wall of the gear, the second convex rib can rotate anticlockwise by a certain angle along with the gear and then can strike the swing rod, and the swing rod swings leftwards under the striking of the second convex rib and then strikes the operating mechanism, so that the operating mechanism is tripped and opened; a convex rib III which is positioned right behind the convex rib I and positioned on the lower side of the convex rib II is arranged on the side wall of the gear; the third convex rib can toggle the micro-break switch after rotating along with the gear. And the second magnet is detachably arranged on the front side wall of the gear and is positioned between the second convex rib and the third convex rib.

Further, when the PCB control board does not receive an authorization signal, the PCB control board controls the motor assembly to drive the gear to rotate anticlockwise, so that after the gear pushes the swing rod to strike the operating mechanism to trip, the PCB control board controls the motor assembly to stop according to a signal fed back by the Hall element, and manual opening and closing cannot be performed at the moment; when the PCB control board receives the authorization signal, the PCB control board firstly controls the motor component to drive the gear to rotate clockwise until the gear stops rotating after the micro-break switch is toggled, and the gear returns to a free position. The function can effectively prevent the theft.

Furthermore, the first Hall element, the second Hall element, the third Hall element and the micro-disconnecting switch are welded on the PCB control board.

Furthermore, the button mechanism comprises a button movably arranged at the right lower end of the base, a slide block which can slide left and right and is arranged between the button and the motor component, and a short pull rod with two ends rotatably connected to the slide block and the button; the first magnet is arranged on the sliding block and can move left and right along with the sliding block and then respectively move right above the second Hall element and the third Hall element; when the first magnet is opposite to the second Hall element, the sliding block is in a switching-on position; the first magnet is opposite to the third Hall element, and the sliding block is located at a brake separating position. The first magnet is detachably mounted on the sliding block through a buckle. One end of the short pull rod is inserted into a preset waist-shaped groove on the button and can move or rotate along the waist-shaped groove.

The invention has compact structure, simple installation, powerful single machine function, stable and reliable action, capability of automatically detecting the position state of the circuit breaker, capability of meeting the space requirement of a communication cabinet, anti-theft function and incapability of switching-on operation without authorization.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an intelligent miniature circuit breaker according to the present invention;

fig. 2 is a schematic structural view of a gear in the intelligent miniature circuit breaker of the present invention in a trip position;

fig. 3 is a schematic structural diagram of the intelligent miniature circuit breaker of the present invention when the gear is in the free position in the opening state;

fig. 4 is a schematic structural view of the intelligent miniature circuit breaker in a closing state when a gear is in a free position;

FIG. 5 is a schematic structural diagram of the intelligent miniature circuit breaker in a closing state according to the present invention;

fig. 6 is a schematic view illustrating the installation of a gear and turbine button mechanism in the intelligent miniature circuit breaker according to the present invention;

FIG. 7 is a schematic structural diagram of a slider in the intelligent miniature circuit breaker of the present invention;

fig. 8 is an assembly view of an inner handle and a worm wheel in the intelligent miniature circuit breaker of the present invention;

fig. 9 is a schematic structural view of an inner handle in the intelligent miniature circuit breaker of the present invention;

fig. 10 is a schematic structural view of a gear in the intelligent miniature circuit breaker of the present invention;

fig. 11 is a plan view of a PCB control board in the intelligent micro circuit breaker of the present invention;

fig. 12 is a bottom view of a PCB control board in the intelligent micro circuit breaker of the present invention;

shown in the figure: 1-button, 2-short pull rod, 3-magnet I, 4-slide block, 5-long pull rod, 6-motor component, 7-inner handle, 8-operating mechanism, 9-swing rod, 10-magnet II, 11-gear, 12-PCB control board, 121-Hall element I, 122-micro-switch, 123-Hall element II, 124-Hall element III, 13-base, 14-trip pull rod, 15-moving contact, 16-torsion spring and 17-mounting groove.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure of the present invention.

It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1-3, the intelligent miniature circuit breaker of the present invention comprises a base 13, and an operating mechanism 8 for controlling the opening and closing of the circuit breaker, a motor assembly 6, a button mechanism, a PCB control board 12 for controlling the operation of the motor assembly 6, an action executing mechanism, and a position monitoring mechanism for monitoring the position state of the circuit breaker are respectively disposed in the base 133. The action executing mechanism can control the opening and closing of the operating mechanism 8 under the driving of the motor component 6 and the button mechanism, and can also control the tripping of the operating mechanism 8 under the driving of the motor component 6; the position monitoring mechanism is electrically connected with the PCB control panel 12 and can transmit a breaker position state signal (the breaker position state signal refers to the position state of the action executing mechanism and the button mechanism) to the PCB control panel 12, and the PCB control panel automatically controls the operation or stop of the motor assembly according to the breaker position state signal. The circuit breaker comprises a fixed contact, a movable contact 15, an overload protection mechanism, a short-circuit protection mechanism, a current sampling device, an arc extinguishing system, an incoming line terminal, an outgoing line terminal and the like which are conventional structures except the conventional structures, and therefore, the structures are not described in detail.

The base 13, i.e. the housing of the circuit breaker, is a conventional component of a circuit breaker for carrying and mounting the various circuit breaker elements.

The operating mechanism 8 is also a structure used by the existing circuit breaker and mainly comprises a contact pedestal, a moving contact 15, a lock catch, a trip buckle, a lock catch torsion spring and a main tension spring; the moving contact and the static contact can be separated and combined under the action of external force, and the lock catch and the jump buckle can be released and unlocked.

The motor assembly 6 comprises a motor and a worm mounted on a rotating shaft of the motor; the motor can rotate under the control of the PCB control board 12 and can drive the worm to rotate; the worm meshes with the gear 11.

The button mechanism comprises a button 1 movably arranged at the right lower end of a base 13, a slide block 4 which can slide left and right and is arranged between the button 1 and a motor component 6 (the slide block 4 is arranged in a base groove 131 preset on the base 13 and can move left and right along the base groove 131), and a short pull rod 2 with two ends rotatably connected on the slide block 4 and the button 1. One end of the short pull rod 2 is inserted into a preset waist-shaped groove 101 on the button 1 and can move or rotate along the waist-shaped groove 101. The short pull rod 2 is a U-shaped pull rod.

The PCB control board 12 is also a common control circuit board of the existing low-voltage circuit breaker, and is configured to control the start and stop of the motor assembly 6, and simultaneously is configured to receive and process signals sent by the first hall element 121, the second micro-switch 122, the second hall element 123, and the third hall element 124, and then control the start and stop of the motor assembly 6. On which conventional electronic components such as a signal receiver, a processor (cpu), a controller, a memory, a display, etc. are arranged.

The action executing mechanism comprises an inner handle 7, a gear 11, a swing rod 9, a torsion spring 16, a reset tension spring, a jump buckle pull rod and a long pull rod.

The inner handle 7 is rotatably arranged in the base 13, the inner handle 7 can drive the operating mechanism 8 to rotate for switching on and off after rotating and is linked with the button mechanism through the long pull rod 5 (one end of the jump buckle pull rod 14 is connected to the jump buckle, the other end of the jump buckle pull rod is connected to the inner handle 7, the inner handle 7 can pull the operating mechanism 8 to rotate so as to separate or attach the movable contact 15 and the static contact, and the circuit breaker is switched off or switched on; a V-shaped clearance groove 701 is arranged on the side surface of the inner handle 7.

The gear 11 is rotatably sleeved outside the inner handle 7, the gear 11 can push the inner handle 7 to rotate under the driving of the motor assembly 6 to enable the operating mechanism 8 to be switched on and off, and can also push the swing rod 9 to hit the lock catch of the operating mechanism 8 to enable the operating mechanism 8 to be tripped (the gear 11 rotates anticlockwise, the swing rod 9 is pushed to hit the lock catch of the moving contact operating machine 8 to enable the lock catch to be separated from the jump buckle to be tripped, and the moving contact 15 can rotate under the driving of the main tension spring and is far away from the fixed contact). A first convex rib 1101 which extends into the clearance groove 701 and is used for pushing the inner handle 7 to rotate is arranged at the front side surface of the gear 11 corresponding to the clearance groove 701; a second convex rib 1102 positioned at the rear side of the first convex rib 1101 is arranged on the side wall of the gear 11, the second convex rib 1102 can rotate anticlockwise by a certain angle along with the gear 11 and then can strike the swing rod 9, the swing rod 9 swings leftwards under the striking of the second convex rib 1102 and then strikes the operating mechanism 8, so that the operating mechanism is tripped, at the moment, the second magnet 10 is over against the first hall element 121, and the gear 11 is positioned at a tripping position; a convex rib third 1103 which is positioned right behind the convex rib first 1101 and positioned on the lower side of the convex rib second 1102 is arranged on the side wall of the gear 11; the third convex rib 1103 can rotate along with the gear 11 (clockwise) and stop rotating after the micro-break switch 122 is toggled, and the gear 11 is in a free position at the moment.

The swing link 9 is installed between the gear 11 and the operating mechanism 8 (specifically, between the gear 11 and the latch) in a manner of swinging left and right. The swing rod 9 corresponds to the position of the lock catch of the operating mechanism 8, the swing rod 9 swings towards the lock catch direction under the impact of the second convex rib 1102 and impacts on a preset cylinder on the lock catch, then the lock catch is pushed to rotate, the lock catch and the trip buckle are released and unlocked, and then the movable contact 15 rotates clockwise under the pulling of the main tension spring and is far away from the static contact, so that the breaker is opened.

One end of the torsion spring 16 is installed at the rear part of the inner handle 7, and the other end is installed in a preset installation groove 17 in the base 13. The torsion spring 16 is used for assisting to push the inner handle 7 to rotate anticlockwise after automatic brake opening or tripping, and further pushing the sliding block 4 and the button 1 to slide outwards (slide rightwards), so that the button 1 extends out of the circuit breaker.

The return spring is arranged between the swing rod 9 and the base 13 in a pulling mode and can enable the swing rod 9 after swinging to be reset (the reset of the swing rod 9 can be realized only after the gear 11 returns to a free position). And after the second convex rib 1102 rotates clockwise along with the gear 11 to be not contacted with the swing rod 9, the return spring can pull the swing rod 9 to return.

The position monitoring mechanism comprises a first magnet 3, a second magnet 10, a first Hall element 121, a micro-break switch 122, a second Hall element 123 and a third Hall element 124.

The first magnet 3 is arranged on the sliding block 4 of the button mechanism, can move left and right along with the sliding block 4 of the button mechanism and can respectively move right above the second Hall element 123 and the third Hall element 124; the first magnet 3 is detachably mounted on the slider 4 through a buckle 401. When the operating mechanism 8 is switched on, the first magnet 3 moves to a position right opposite to the second hall element 123 along with the sliding block 4 of the button mechanism, the second hall element 123 detects a signal and sends the signal to the PCB control board 12, and the sliding block 4 is at the switching-on position at the moment; when the breaker is opened, the first magnet 3 moves along with the sliding block 4 of the button mechanism to a position opposite to the third Hall element 124, the third Hall element 124 detects a signal and sends the signal to the PCB control board 12, and at the moment, the sliding block 4 is in the opening position.

The second magnet 10 is mounted on the gear 11 and can rotate along with the gear 11, the position of the second magnet corresponds to that of the first hall element 121, and the second magnet 10 is detachably mounted on the front side wall of the gear 11 and located between the second convex rib 1102 and the third convex rib 1103. When the operating mechanism 8 is tripped, the second magnet 10 moves to a position opposite to the first hall element 121 along with the gear, the first hall element 121 detects a signal and sends the signal to the PCB control board 12, and the gear 11 is in a tripping position.

The first hall element 121, the micro-break switch 122, the second hall element 123 and the third hall element 124 are sequentially welded on the PCB control board 12 from left to right and are electrically connected with the PCB control board 12 respectively, and the collected electric signals are transmitted to the PCB control board 12. The first Hall element 121 is positioned above the left side of the gear 11 (the second magnet 10 is arranged on the outer side of the gear 11 and can be opposite to the first Hall element 121 after rotating along with the gear 11); the micro-breaker 122 is located at the upper right of the gear 11 and faces the clearance groove 701. The second Hall element 123 is positioned above the left end of the base groove 13; the Hall element three 124 is above the right end of the base groove 131.

After the operating mechanism 8 completes opening or closing, the PCB control board 12 controls the motor assembly 6 to drive the gear 11 to rotate reversely according to signals fed back by the second hall element 123 and the third hall element 124, until the gear 11 toggles the micro-break switch 122, the motor assembly 6 stops, the gear 11 is in a free position, and the circuit breaker can perform automatic opening or closing or tripping (automatic operation) and can also perform manual opening or closing (manual operation).

That is, the first hall element 121 is used for detecting whether the gear 11 reaches the trip position, the micro-break switch 122 is used for detecting whether the gear 11 reaches the free position, the second hall element 123 is used for detecting whether the slider 4 reaches the on position, and the third hall element 124 is used for detecting whether the slider 4 reaches the off position.

The working principle of the circuit breaker is as follows:

(1) automatic operation:

closing (switching off and switching on) -as shown in fig. 3, when the gear 11 stops at the free position, the motor assembly 6 can drive the gear 11 to rotate clockwise, and after the gear 11 rotates for a certain angle, a first convex rib 1101 on the gear 11 is contacted with the right side of the clearance groove 701 of the inner handle 7 and pushes the inner handle 7 to rotate; when the inner handle 7 rotates, on one hand, the operating mechanism 8 is pushed to rotate anticlockwise through the trip buckle pull rod 14 until the movable contact 15 is contacted with the fixed contact, on the other hand, the slider 4 is pulled to slide leftwards through the long pull rod 5 (the button 1 extends into the base 13), and when the first magnet 3 on the slider 4 moves right above the second hall element 123 on the PCB control board 12 (the movable contact 15 is also attached to the fixed contact), the second hall element 123 detects a signal and sends the signal to the PCB control board 12 (a processor which sends an instruction for stopping the motor assembly 6 to a controller after processing and analysis), the PCB control board 12 (the controller) controls the motor assembly 6 to stop rotating, and the circuit breaker is switched on (the position shown in fig. 5). After the circuit breaker is closed, the motor assembly 6 is automatically started again and drives the gear 11 to rotate counterclockwise, until the third convex rib 1103 on the gear 11 toggles the micro-break switch 122, the micro-break switch 122 sends a signal to the PCB control board 12, the PCB control board 12 controls the motor assembly 6 to stop rotating, the gear 11 returns to a free position (as shown in fig. 4), and the torsion spring 16 is in an energy storage state.

Opening or tripping (closing-to-opening or tripping) — as shown in fig. 4, when the gear 11 stops at a free position, the motor assembly 6 drives the gear 11 to rotate counterclockwise, the gear 11 rotates by a certain angle until the second magnet 10 on the gear 11 moves to a position right above the first hall element 121, the first hall element 121 detects the second magnet 10 and then sends a signal to the PCB control board 12, the PCB control board 12 controls the motor assembly 6 to stop running, at this time, the second convex rib 1102 on the gear impacts the oscillating bar 9, the oscillating bar 9 deflects leftward and then impacts the operating mechanism 8 (latch), the operating mechanism 8 is unlocked and tripped (latch and trip tripping), then the operating mechanism 8 rotates clockwise under the action of the main tension spring, and the moving contact is far away from the static contact; meanwhile, under the action of the main tension spring and the torsion spring 16, the inner handle 7 rotates anticlockwise, the long pull rod 5 pushes the slider 4 to move rightwards (the button 1 extends out of the base 13), and the circuit breaker is switched off (at the moment, the circuit breaker is also in a tripping state) after the Hall element three 124 detects the magnet one 3 and sends a signal to the PCB control board 12 (the position is shown in FIG. 2). After the circuit breaker is opened or tripped, the motor assembly 6 is started again and drives the gear 11 to rotate clockwise, until the three convex ribs 1103 on the gear 11 toggle the micro-break switch 122, the micro-break switch 122 sends a signal to the PCB control board 12, the PCB control board 12 controls the motor assembly 6 to stop rotating, the gear 11 returns to a free position (as shown in fig. 3), and the circuit breaker lock catch is driven by the lock catch torsion spring to complete the hasp with the jump catch again.

(2) Manual operation:

closing (opening and switching-on) -when the gear 11 stops at the free position, as shown in fig. 3, the manual pressing button 1 pushes the slider 4 to slide leftward (to slide toward the base 3 or the breaker) through the short pull rod 2, the slider 4 pushes the inner handle 7 to rotate clockwise through the long pull rod 5, the inner handle 7 pushes the operating mechanism 8 to rotate counterclockwise integrally through the trip pull rod 14 while rotating, so that the moving contact 15 is contacted with the fixed contact again, and the breaker is closed (at the position shown in fig. 4).

Switching-off or tripping (switching-on switching-off or tripping) — as shown in fig. 4, when the gear 11 stops at a free position, the manual pull-out button 1 pulls the slider 4 to slide rightward (to slide outward of the base 13 or the circuit breaker) through the short pull rod 2, then pulls the inner handle 7 to rotate counterclockwise through the long pull rod 5, and the inner handle 7 pulls the operating mechanism 8 to rotate clockwise through the trip pull rod 14 while rotating, so that the moving contact 15 is separated from the static contact, and the circuit breaker is switched off (as shown in fig. 3).

Example two:

the difference between this embodiment and the first embodiment is:

in order to prevent the circuit breaker from being stolen, when the PCB control board 12 does not receive an authorization signal, the PCB control board controls the motor assembly 6 to drive the gear 11 to rotate anticlockwise, the circuit breaker stops after rotating to a tripping position (after the gear 11 pushes the swing rod 9 to strike the operating mechanism 8 to trip), the moving contact 15 is switched off, the PCB control board 12 controls the motor assembly 6 to stop rotating according to a signal fed back by the Hall element I121, then if no authorization exists, the motor assembly 6 cannot rotate, the automatic switching-on cannot be carried out, meanwhile, the manual switching-on cannot be carried out, when the gear 11 is located at the tripping position, the convex rib II 1102 of the gear 11 can be propped against the swing rod 9, the swing rod 9 cannot reset, the lock catch can be blocked to cause the lock catch to be difficult to rotate, when the inner handle 7 is pushed to rotate by the button mechanism 6 to push the lock catch to reset, and the lock catch cannot be buckled again, closing is difficult to realize), and normal breaking is difficult to carry out; when the PCB control board 12 receives the authorization signal, the PCB control board 12 controls the motor assembly 6 to drive the gear 11 to rotate clockwise to the free position (until the rib third 1103 of the gear 11 toggles the micro-break switch 122, the motor assembly 6 and the gear 11 stop rotating, and the gear 11 returns to the free position), at this time, the automatic switching on/off or the tripping can be performed, and the manual switching on/off can also be performed.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The scope of the present invention is not limited to the technical solutions disclosed in the embodiments, and any modifications, equivalent substitutions, improvements, etc. made to the above embodiments according to the technical spirit of the present invention fall within the scope of the present invention.