CN117133606A

CN117133606A - Circuit breaker opening/closing control device and circuit breaker

Info

Publication number: CN117133606A
Application number: CN202311294198.4A
Authority: CN
Inventors: 张维民
Original assignee: Beijing Yunlianzhidian Technology Co ltd
Current assignee: Beijing Yunlianzhidian Technology Co ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2023-11-28

Abstract

The invention provides a circuit breaker opening/closing control device and a circuit breaker, relates to the technical field of miniature intelligent circuit breakers, and solves the technical problems of complex structure and high cost of the circuit breaker control device. The control device comprises a main shaft, a micro-breaking wrench and a clutch mechanism, wherein the clutch mechanism comprises a clutch disc and a coil assembly which are positioned on the main shaft, the coil assembly is fixedly arranged, the clutch disc is positioned between the micro-breaking wrench and the coil assembly, and the clutch disc is movably arranged along the main shaft under the driving of the energized coil assembly, so that the clutch disc and the micro-breaking wrench are in a clamping state and a separating state, when the clutch disc is in the clamping state, the clutch disc drives the micro-breaking wrench to rotate along with the main shaft, and when the clutch disc is in the separating state, only the clutch disc rotates along with the main shaft, and the micro-breaking wrench does not rotate along with the main shaft. The micro-breaking wrench can perform opening and closing actions under the driving of the coil assembly, and the micro-breaking wrench can be turned without complex structures such as a gear reduction mechanism, so that parts are few, the structure is compact, the space is saved, and the cost is saved.

Description

Circuit breaker opening/closing control device and circuit breaker

Technical Field

The invention relates to the technical field of miniature intelligent circuit breakers, in particular to a circuit breaker opening/closing control device and a circuit breaker.

Background

The miniature circuit breaker is also called an air switch, is a terminal protection electrical appliance widely used in industrial and civil electrical distribution devices, and in order to realize remote control of the traditional miniature circuit breaker, a plurality of intelligent remote control miniature circuit breakers are arranged on the market at present, and the intelligent remote control and remote control functions are realized by combining a microcomputer technology and a miniature motor.

In the prior art, a plurality of application products with micro-breaks connected in parallel exist, and the electric separation/combination operation in the micro-break application products is completed by using independent control and independent driving of each micro-break (unit), namely, each micro-break (unit) comprises an independent power supply, an independent IC circuit, an independent motor, an independent gear set and the like, and is also communicated with a main control unit (and then the main control unit completes wireless remote communication with a user). Not only is the structure complex, the volume huge, the cost is high, but also the fault rate of devices is high, and the common problem of unstable performance is difficult to solve.

Disclosure of Invention

The invention aims to provide a circuit breaker opening/closing control device and a circuit breaker, which are used for solving the technical problems of complex structure and high cost of the circuit breaker control device in the prior art _。 The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the invention provides a breaker opening/closing control device, which comprises a main shaft and a clutch mechanism, wherein the clutch mechanism comprises a micro-breaking wrench, a clutch disc and a coil assembly which are positioned on the main shaft, and the clutch mechanism comprises the following components:

the coil assembly is fixedly arranged, the clutch disc is positioned between the micro-breaking wrench and the coil assembly, the clutch disc is movably arranged along the main shaft under the drive of the coil assembly when being electrified, so that the clutch disc and the micro-breaking wrench are in a clamping state and a separating state, when the clutch disc is in the clamping state, the clutch disc drives the micro-breaking wrench to rotate along with the main shaft, and when the clutch disc is in the separating state, only the clutch disc rotates along with the main shaft.

Preferably, the radial section of the main shaft is non-circular, the clutch disc is provided with a matching hole for the main shaft to pass through, the shape of the matching hole is the same as the radial section of the main shaft, and the clutch disc can synchronously rotate along with the main shaft and can axially reciprocate along the main shaft.

Preferably, the micro-breaking wrench is sleeved on the main shaft, and the micro-breaking wrench is in clearance fit with the peripheral wall of the main shaft and can freely rotate around the main shaft under the action of external force.

Preferably, the micro-breaking wrench is provided with a groove, and the clutch disc can be wholly or partially clamped in the groove when moving towards the micro-breaking wrench.

Preferably, the coil assembly comprises a hollow coil, and the hollow coil is sleeved on the main shaft and fixed at the position on the main shaft;

or the coil component comprises a framework and a wire wound on the framework, and the framework is sleeved on the main shaft;

when the air coil or the lead on the framework is electrified, the clutch disc can be driven to move along the direction facing or deviating from the micro-breaking wrench, and the clutch disc can be moved to a position where the clutch disc is clamped with or separated from the micro-breaking wrench.

Preferably, the breaker opening/closing control device further comprises a snap locking part, wherein the snap locking part is fixed on one side of the micro-breaking wrench, which is away from the clutch disc, and is used for adsorbing the clutch disc, so that the micro-breaking wrench and the clutch disc keep the clamping state.

Preferably, the circuit breaker opening/closing control device further comprises a disengagement locking part, wherein the disengagement locking part is fixed on one side of the coil assembly, which is away from the clutch disc, and is used for adsorbing the clutch disc in a disengagement state, so that the micro-breaking wrench and the clutch disc keep the disengagement state.

Preferably, when the coil assembly includes an air coil, the clutch disc is made of a magnetically charged material, and the engagement locking portion and the disengagement locking portion are made of a magnetically conductive material;

when the coil assembly comprises a framework and a wire wound on the framework, the clutch disc is made of magnetic conductive materials, and the engagement locking part and the disengagement locking part are made of magnetic materials.

Preferably, when the number of the micro-breaking wrenches is more than two, the micro-breaking wrenches are respectively located in different micro-breakers and are arranged along the length direction of the main shaft, and the number of the clutch mechanisms is in one-to-one correspondence with the micro-breaking wrenches.

The invention also provides a circuit breaker, which comprises the circuit breaker opening/closing control device.

Compared with the prior art, the circuit breaker opening/closing control device and the circuit breaker provided by the invention have the following beneficial effects: the clutch disc is driven to be in a clamping/separating state with the micro-breaking wrench by utilizing magnetic field force generated by energizing the coil assembly; when the clutch is clamped and in a state, the clutch disc drives the micro-breaking wrench to rotate along with the main shaft, so that the micro-breaking wrench can perform opening/closing actions; when the micro-breaking wrench is in a disengaged state, the micro-breaking wrench does not rotate along with the main shaft to keep the original state. According to the structure, the micro-breaking wrench can be independently switched on and off under the driving of the coil assembly, the remote control breaking of the micro-breaking wrench is realized without complex structures such as a gear reduction mechanism, the structure is simple, the space and the cost are saved, and the fault rate is reduced and the stability is improved due to the reduction of component devices.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a first embodiment of a switching on/off control device of a circuit breaker;

FIG. 2 is a schematic view of one embodiment of a spindle;

fig. 3 is a schematic structural diagram of a second embodiment of a switching on/off control device of the circuit breaker.

In the figure 1, a main shaft; 2. a micro-breaking wrench; 22. a groove; 3. a clutch plate; 31. a mating hole; 4. a coil assembly; 5. a snap lock; 6. disengaging the locking portion; 100. and a main controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.

In the description of the present invention, it should be understood that the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

The embodiment of the invention provides a circuit breaker opening/closing control device and a circuit breaker, wherein a micro-breaking wrench can be controlled to rotate along with a main shaft or not, the rotation of each micro-breaking wrench is realized without complex structures such as a gear reduction mechanism and the like, the number of parts is small, the structure is compact, the space is saved, the cost is saved, and the stability is improved.

The technical solution provided by the present invention is described in more detail below with reference to fig. 1-3.

Example 1:

referring to fig. 1, the present embodiment provides a switching-on/off control device of a circuit breaker, including a main shaft 1, a micro-breaking wrench 2, and a clutch mechanism, wherein the clutch mechanism includes a clutch disc 3 and a coil assembly 4 located on the main shaft 1, and the following components are: the coil assembly 4 is fixedly arranged, the clutch disc 3 is positioned between the micro-breaking wrench 2 and the coil assembly 4, and the clutch disc 3 is slidably arranged along the main shaft 1 under the driving of the energized coil assembly 4, so that the clutch disc 3 and the micro-breaking wrench 2 are in a clamping state and a separating state, when in the clamping state, the clutch disc 3 drives the micro-breaking wrench 2 to rotate along with the main shaft 1, and when in the separating state, only the clutch disc 3 rotates along with the main shaft 1, and the micro-breaking wrench 2 does not rotate along with the main shaft 1.

The main shaft 1 is driven by a motor and a speed reducer in the main controller to rotate, a main shaft driving device is not needed in the miniature circuit breaker, the structure is simple and compact, the occupied volume is small, and the miniature circuit breaker is suitable for the miniature circuit breaker in a narrow space.

The breaker opening/closing control device further comprises an IC circuit board, and the IC circuit board is fixed in the breaker. The main controller transmits power supply, control instruction and state detection to each connected novel breaker through the IC circuit board. When the coil assembly 4 is controlled to input currents in different directions, the directions of magnetic fields generated by the coil assembly 4 are different. Specifically, when a forward current (if) is introduced into the coil assembly 4, the micro-breaking wrench 2 and the clutch disc 3 attract each other, the clutch disc 3 moves on the main shaft 1 along the axial direction towards the micro-breaking wrench 2, so that the micro-breaking wrench 2 is meshed with the micro-breaking wrench 2, and the micro-breaking wrench 2 rotates synchronously with the clutch disc 3 and the main shaft 1; when reverse current (if) is introduced into the coil assembly 4, the coil assembly 4 and the clutch disc 3 attract each other, and the clutch disc 3 moves on the main shaft 1 along the direction away from the micro-breaking wrench 2 along the axial direction, so that the micro-breaking wrench 2 is separated from the micro-breaking wrench 2, and the micro-breaking wrench 2 cannot move along with the main shaft 1.

The control device can enable the clutch disc 3 in the novel circuit breaker to be clamped with the micro-breaking wrench 2, and then the sub-unit switching-on/switching-off task is completed under the driving of the rotation of the main shaft 1. When the clutch disc 3 in the subunit is separated from the micro-breaking wrench 2, the micro-breaking wrench 2 cannot rotate along with the rotation of the main shaft 1.

According to the circuit breaker opening/closing control device, a magnetic field is generated when the coil assembly 4 is electrified, when the coil assembly 4 and the clutch disc 3 repel each other, the clutch disc 3 and the micro-breaking wrench 2 can be driven to be in a clamping state, the clutch disc 3 drives the micro-breaking wrench 2 to rotate along with the main shaft 1, opening/closing actions of the micro-breaking wrench 2 are achieved, when the coil assembly 4 and the clutch disc 3 attract each other, the clutch disc 3 and the micro-breaking wrench 2 can be driven to be in a separation state, and the micro-breaking wrench 2 does not rotate along with the main shaft 1.

According to the structure, the micro-breaking wrench 2 can be driven by the coil assembly to rotate along with the main shaft to realize switching-on and switching-off through the clutch disc, a gear reduction mechanism and other complex structures are not needed, parts are few, the structure is compact, the space is saved, and the cost is saved. And a plurality of cascaded miniature circuit breakers can realize that the respective miniature breaking wrenches 2 can independently perform opening/closing actions through the control device.

Of course, the micro-breaking wrench 2 can be rotated under manual driving at any time, thereby performing manual opening/closing operation.

As an alternative embodiment, referring to fig. 1 and 2, the radial section of the main shaft 1 is non-circular, the clutch disc 3 is provided with a matching hole 31 for the main shaft 11 to pass through, the shape of the matching hole 31 is the same as the radial section of the main shaft 11, and the clutch disc 3 can synchronously rotate along with the main shaft 1 and can slide back and forth along the axial direction of the main shaft 1; the micro-breaking wrench 2 is sleeved on the main shaft 1 and is in clearance fit with the peripheral wall of the main shaft 1, so that the micro-breaking wrench 2 can be manually pulled to perform micro-breaking switching-on and switching-off at any time regardless of the state of the main shaft.

Referring to fig. 1 and 2, the clutch disc 3 is movably disposed on the main shaft 11. The radial section of the main shaft 11 may be oval, triangle, rectangle or other polygonal or irregular shapes, as shown in fig. 1 and 2, in which the radial section of the main shaft 11 is a missing circle, that is, a pattern formed by enclosing a straight line segment and a part of the circle.

The shape of the hole allowing the main shaft 1 to pass through on the micro-breaking wrench 2 is not limited, the micro-breaking wrench 2 is sleeved on the main shaft 1, and the micro-breaking wrench 2 does not rotate along with the main shaft 1 when being separated from the clutch disc. Referring to fig. 2, when the radial cross section of the main shaft 11 is a plane-lacking circle in the figure, the hole in the middle of the micro-breaking wrench 2 may be a circle, and the side wall of the hole is in clearance fit with the peripheral wall of the main shaft 1, so that the micro-breaking wrench 2 does not rotate along with the main shaft 1 when being separated from the clutch disc.

The main shaft 11 having the above structure is engaged with the engagement hole 31 of the clutch disc 3, and it is possible to realize: the clutch disc 3 can move along the axial direction of the main shaft 1 under the drive of the electrified coil assembly 4, and the clutch disc 3 can synchronously rotate along with the main shaft 1, when the clutch disc 3 and the micro-breaking wrench 2 are in a clamping state, the micro-breaking wrench 2 and the clutch disc 3 synchronously rotate with the main shaft 1, so that the micro-breaking wrench 2 can perform opening/closing actions.

As an alternative embodiment, referring to fig. 1, a groove 22 is provided on the micro-breaking wrench 2, and the clutch disc 3 can be wholly or partially clamped in the groove 22 when moving towards the micro-breaking wrench 2.

Referring to fig. 1, the clutch disc 3 is driven by the energized coil assembly 4 to move along the axial direction of the spindle 1, and when the clutch disc 3 is entirely clamped in the groove 22, the clutch disc 3 and the micro-breaking wrench 2 are in a clamping state, and the micro-breaking wrench 2 and the clutch disc 3 rotate synchronously with the spindle 1. When the clutch plate 3 is positioned and clamped with the groove 22, the clutch plate 3 is sucked with the engagement locking part 5, and the locking and clamping state is stable and unchanged.

As an alternative implementation, referring to fig. 1, the coil assembly 4 of the present embodiment includes a hollow coil, the hollow coil is sleeved on the spindle 1 and is fixed in position on the spindle, when the hollow coil is energized, the clutch disc 3 can be driven to move in a direction towards or away from the micro-breaking wrench 2, and the clutch disc 3 can be moved to a position engaged with the micro-breaking wrench 2.

The position of the hollow coil on the main shaft is fixed, the IC circuit can drive the clutch disc 3 to move towards the micro-breaking wrench 2 along the main shaft 1 or move away from the micro-breaking wrench 2 by leading currents in different directions to the hollow coil through instructions, and the hollow coil does not rotate along with the main shaft 1, so that a connecting wire between the hollow coil and the IC circuit is prevented from being frequently bent to be broken.

As an alternative embodiment, the coil assembly 4 includes a skeleton and a wire wound on the skeleton (i.e. a skeleton coil), where the clutch disc is integrated on the skeleton coil, the skeleton coil is sleeved on the spindle 1, a connection mating hole of the skeleton coil and the spindle is shown as 31 in fig. 1, when the skeleton coil is energized, the clutch disc 3 can be driven to move in a direction towards or away from the micro-breaking wrench 2, and the clutch disc 3 can be moved to a position where the clutch disc is clamped with the micro-breaking wrench 2.

Referring to fig. 1, the hollow coil replaces the framework coil structure in the embodiment, so that the space occupied in the miniature circuit breaker with limited space is smaller, and the cost is saved; in addition, in the miniature circuit breaker, the size of skeleton is less, and the processing degree of difficulty is bigger. In the structure of the hollow coil in the embodiment, a framework is not required to be machined, and the technical implementation difficulty is obviously reduced.

As an alternative embodiment, referring to fig. 1, the circuit breaker opening/closing operation device further includes a snap locking portion 5, where the snap locking portion 5 is fixed to a side of the micro-breaking wrench 2 facing away from the clutch disc 3, so as to adsorb the clutch disc 3, thereby maintaining the micro-breaking wrench 2 and the clutch disc 3 in a clamped state.

The engagement locking portion 5 has a sheet-like structure, a block-like structure, or the like, and the engagement locking portion 5 may be fixed to the micro-breaking wrench 2 by means of adhesion, screws, or the like. The material of the snap-lock 5 is magnetically conductive (when the coil assembly comprises an air coil), either in the form of a single piece or as a number of small magnetically conductive pieces (posts). The clutch plate 3 is made of a magnetic material (when the coil assembly comprises an air coil), the engagement locking part 5 is made of a magnetic conductive material, and after the engagement locking part 5 enables the clutch plate 3 to be engaged with the micro-breaking wrench 2, even if the coil assembly 4 is powered off, the magnetic force of the coil assembly 4 is lost, the clutch plate 3 cannot be separated from the micro-breaking wrench 2, and the clutch plate 3 is kept engaged with the micro-breaking wrench 2.

As an alternative embodiment, the breaker opening/closing operation device further includes a disengagement locking portion 6, where the disengagement locking portion 6 is fixed on a side of the coil assembly 4 away from the clutch disc 3, so as to adsorb the clutch disc 3, so that the clutch disc 3 is attached to the coil assembly 4, and further the micro-breaking wrench 2 is kept in a disengaged state with the clutch disc 3. After the clutch disc 3 is separated from the micro-breaking wrench 2 and is close to the coil assembly by the separation locking part 6, even if the coil assembly 4 is powered off, the magnetic force of the coil assembly 4 is lost, the clutch disc 3 cannot be separated from the coil assembly 4, and the clutch disc 3 and the micro-breaking wrench 2 are kept in a separated state.

The above-mentioned disengaging locking portion 6 is a sheet-like structure or a block-like structure, the specific shape is not limited, and the disengaging locking portion 6 may be fixed to the coil block 4 by means of adhesion, screws, or the like.

The material of the disengaging locking part 6 is magnetically conductive, and can be in the form of a whole piece or a plurality of small magnetically conductive pieces (posts).

As an alternative embodiment, when the coil assembly includes an air coil, as shown in fig. 1, the clutch disc is made of a magnetically-charged material, and the engagement locking portion and the disengagement locking portion are made of a magnetically conductive material; the clutch disc is driven to slide by the magnetic force generated by the air coil. When the coil assembly 4 is electrified reversely (if) in the coil assembly 4, the coil assembly 4 adsorbs the clutch disc 3, the clutch disc 3 is far away from the micro-breaking wrench 2, even if the coil assembly 4 is powered off, the magnetic force of the coil assembly 4 is lost, and the clutch disc 3 is locked to be in a state of being adsorbed by the coil assembly 4, namely, the clutch disc 3 is kept in a state of being separated from the micro-breaking wrench 2.

As an alternative embodiment, when the coil assembly includes a bobbin and a wire wound around the bobbin, the clutch disc is made of a magnetically conductive material, and the engagement locking portion and the disengagement locking portion are made of a magnetically conductive material.

After the coil on the framework is powered on, a magnetic field (the framework is magnetized at the moment) is generated on the end face of the framework, and the magnetic field, the engagement locking parts and the disengagement locking parts on two sides generate pushing/sucking force to drive the clutch disc to move; the skeleton coil is non-magnetic (reduced to a magnetizer) after power is lost, and is locked with the skeleton coil by a magnetically engaged locking part or a magnetically disengaged locking part.

The coil assembly 4 in the embodiment is supplied with forward/reverse current by the controlled IC, and the clutch disc 3 moves along the axial direction of the main shaft 1 close to the coil assembly 4 or moves along the axial direction of the main shaft 1 close to the micro-breaking wrench 2 due to different magnetic field forces generated by the coil assembly 4 supplied with current; no magnetic field force is generated when the coil assembly 4 is not energized. The clutch plate 3 is engaged and locked by the engagement locking part 5 or the disengagement locking part 6.

The control device also comprises a main control unit, wherein the main control unit is used for providing and driving the common main shaft 1, providing a system power supply and wireless remote communication and performing operation control on each micro-breaking subunit. The IC power supply in all the sub-units is provided by the main control unit in such a way that the main control unit starts a PCB circuit board penetrating through each sub-unit, the PCB circuit board is provided with an IC circuit and a power supply of each micro-breaking unit, and the IC circuit completes the communication with the main control unit, whether the coil assembly 4 of the main control unit is powered on (in different directions) or not, detects the states of the relevant states (the position of the clutch disc 3, the micro-breaking wrench 2) in the main sub-unit, and the like. The coil assembly 4 is powered up under the command of the unit IC circuit which communicates with the main control unit IC to obtain various operation commands.

In use (certain micro-breaking subunit):

1. the main shaft 1 is not moved, the coil assembly 4 is controlled to apply forward current (if the main shaft is not moved), the clutch disc 3 is separated from the coil assembly 4 under the action of the magnetic field force of the coil assembly 4 and is clamped with the groove 22 on the micro-breaking wrench 2, the coil assembly 4 is controlled to lose electricity, and the clutch disc 3 is kept in a suction state with the engagement locking part 5; the main controller executes a remote user command to drive the main shaft 1 to rotate (forward/reverse), the main shaft rotates to drive the clutch disc 3 in each micro-breaking subunit to rotate, if the clutch disc 3 of the unit is clamped with the micro-breaking wrench 2, the micro-breaking wrench 2 rotates under the drive of the main shaft 1 and the clutch disc 3, and the micro-breaking switch on/off operation of the unit is completed;

2. the main shaft 1 is not moved, the coil assembly 4 is controlled to apply reverse current (if the reverse current is applied), the clutch disc 3 is separated from the groove 22 of the micro-breaking wrench 2 under the action of the magnetic field force of the coil assembly 4 to be attracted with the separation locking part 6, the coil assembly 4 is controlled to lose electricity, and the attraction state of the clutch disc 3 and the coil assembly 4 is maintained; at the moment, even if the main shaft 1 controlled by the main controller rotates, the micro-breaking wrench 2 at the current stage is not driven to rotate.

Example 2

Referring to fig. 3, in the circuit breaker opening/closing control device of the present embodiment, when the number of micro-breaking wrenches 2 is more than two, the micro-breaking wrenches are respectively located in different micro-breakers and are arranged along the length direction of the main shaft 1, and the number of clutch mechanisms is set in one-to-one correspondence with the micro-breaking wrenches 2.

The new circuit breaker(s) are connected to an external master controller 100, the external master controller 100 providing common spindle drive to the connected new circuit breaker(s); the external main controller also provides respective IC control instructions, IC operating power and coil assembly operating power to the connected new circuit breaker(s); the external master controller maintains communication with the connected new circuit breaker(s) and status information collection.

When a plurality of miniature circuit breakers are cascaded, as each stage of miniature circuit breaker is internally provided with an independent IC control circuit, the independent IC control circuit respectively receives the instruction of the main controller 100 to control the coil assembly in the unit, and the clutch plates of different miniature circuit breaker sub-units can be positioned at different positions, namely, the respective switching on/off of each stage of miniature circuit breaker is realized.

Example 3

The embodiment provides a circuit breaker, which comprises the circuit breaker opening/closing control device. In fig. 3, A, B, C, D shows a micro-break unit 1, a micro-break unit 2, and a micro-break unit 3 … …, respectively, a micro-break unit n.

The breaker opening/closing control device is positioned in each cascading micro-breaker. The circuit breaker of this embodiment, owing to have above-mentioned circuit breaker divide/closing control device, little broken spanner 2 can rotate or not rotate along with main shaft 1, need not the rotation of every little broken spanner 2 of complex structure realization such as gear reduction mechanism, spare part is few, compact structure, saves space, saving cost. And the multi-position miniature circuit breaker can realize the independent opening/closing of each unit of miniature breaking spanner 2 through the control device.

The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples in this specification.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a circuit breaker divide/closing control device which characterized in that includes main shaft, little broken spanner and clutch mechanism, clutch mechanism includes being located clutch disc and the coil pack on the main shaft, wherein:

2. The opening/closing control device of the circuit breaker according to claim 1, wherein the radial section of the main shaft is non-circular, the clutch disc is provided with a matching hole for the main shaft to pass through, the shape of the matching hole is the same as the radial section of the main shaft, and the clutch disc can synchronously rotate along with the main shaft and can axially slide along the main shaft.

3. The opening/closing control device of the circuit breaker according to claim 1 or 2, wherein the micro-breaking wrench is sleeved on the main shaft, and the micro-breaking wrench is in clearance fit with the peripheral wall of the main shaft and can freely rotate around the main shaft under the action of external force.

4. The opening/closing control device of the circuit breaker according to claim 1, wherein a groove is formed in the micro-breaking wrench, and the clutch disc can be wholly or partially clamped in the groove when moving towards the micro-breaking wrench.

5. The opening/closing control device of the circuit breaker according to claim 1, wherein the coil assembly comprises a hollow coil which is sleeved on the main shaft and fixed at a position on the main shaft;

when the air coil or the lead is electrified, the clutch disc can be driven to move along the direction facing to or deviating from the micro-breaking wrench, and the clutch disc can be moved to a position where the clutch disc is clamped with or separated from the micro-breaking wrench.

6. The opening/closing control device of the circuit breaker according to claim 1, further comprising a snap locking portion fixed to a side of the micro-breaking wrench facing away from the clutch disc, for adsorbing the clutch disc, so that the micro-breaking wrench and the clutch disc maintain the engaged state.

7. The opening/closing operation device of the circuit breaker according to claim 6, further comprising a release locking portion fixed to a side of the coil assembly facing away from the clutch disc, for adsorbing the clutch disc in a release state, so that the micro-breaking wrench and the clutch disc maintain the release state.

8. The circuit breaker opening/closing manipulating device according to claim 7, wherein when the coil assembly comprises an air coil, the clutch disc is made of a magnetically-charged material, and the engagement locking portion and the disengagement locking portion are made of a magnetically conductive material;

9. The opening/closing control device of the circuit breaker according to claim 1, wherein when the number of the micro-breaking wrenches is more than two, the micro-breaking wrenches are respectively located in different micro-circuit breakers and are arranged along the length direction of the main shaft, and the number of the clutch mechanisms is set in one-to-one correspondence with the micro-breaking wrenches.

10. A circuit breaker comprising a circuit breaker opening/closing control apparatus according to any one of claims 1 to 9.