CN114496671A - Control device for switching on and off miniature circuit breaker and working method thereof - Google Patents
Control device for switching on and off miniature circuit breaker and working method thereof Download PDFInfo
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- CN114496671A CN114496671A CN202210124648.4A CN202210124648A CN114496671A CN 114496671 A CN114496671 A CN 114496671A CN 202210124648 A CN202210124648 A CN 202210124648A CN 114496671 A CN114496671 A CN 114496671A
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- circuit breaker
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- shaped handle
- opening
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- 238000000034 method Methods 0.000 title abstract description 9
- 238000011017 operating method Methods 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 description 11
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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Abstract
The invention provides a control device for switching on and off a miniature circuit breaker and a working method thereof. The device comprises a shell which can be clamped on the breaker, wherein a guide rod is arranged in the shell, a rack is connected to the guide rod in a sliding manner, the rack is meshed with a reversing gear, the reversing gear is meshed with an arc-shaped handle, and a toggle gear matched with a breaker switch is arranged on the arc-shaped handle; under manual control, the reversing teeth are separated from the rack, and the arc-shaped handle realizes the opening and closing operation of the circuit breaker under manual control; under electric control, the reversing teeth are meshed with the racks, and the arc-shaped handle is driven by the reversing teeth to realize the opening and closing operation of the circuit breaker.
Description
Technical Field
The invention belongs to the field of circuit breakers, and particularly relates to a control device for switching on and switching off a miniature circuit breaker and a working method thereof.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the gradual innovation of production technology and the large-scale application of energy-saving and environment-friendly technology, the demand of various industries on intelligent energy-saving technology is increasing day by day, the timed disconnection, the switch-on or the instant control of the circuit breaker is necessary, and in view of the fact that the conventional circuit breaker needs to be manually switched on to recover the normal work of equipment before tripping and breaking, and the types and the number of the equipment are too many, the manual operation easily causes misoperation, thereby bringing certain influence on production and life, and the intelligent control is urgent.
The existing power supply system mainly adopts three types of control of a contactor, intelligent air switch control and external module control for a circuit, wherein the first type adopts a contactor control mode and can only realize power-off operation and can not realize power-on operation again; the second method adopts an intelligent air switch control mode, all formed circuit boards need to be replaced, the construction difficulty is high, and the construction period is long; when the third type adopts an externally-attached module structure, a manual or speed reducer is mainly used for driving a module handle to act, so that a breaker switch handle is driven to act, and the breaking and closing actions of the breaker are realized. The side-mounted type mainly drives the circuit breaker handle to move circularly by means of meshing gear rotation, automatic breaking and closing of the circuit breaker are achieved, the distance between the circuit breaker and the circuit breaker can be increased by the aid of the mounting mode, all formed circuit boards need to be replaced, construction difficulty is high, and construction period is long. The top-mounted mainly relies on the speed reducer to drive the linear motion of drive handle, realizes the rotary control to the circuit breaker handle to realize that the circuit breaker is automatic disconnected, combined floodgate, this kind of mounting means need not to change the circuit board overall arrangement, and the construction is simple and convenient, but current mode directly drives drive handle for the speed reducer and realizes linear motion, and it is great easily influenced by motor factor, causes slider positioning error easily when the electrical part damages, thereby influences disconnected, combined floodgate state.
Disclosure of Invention
The invention provides a control device for switching on and off a miniature circuit breaker and a working method thereof, aiming at solving the problems of low automatic reclosing efficiency, poor positioning precision, great influence of component stability and the like caused by driving a speed reducer by a speed reducer screw rod, optimizing the stress point of a driving handle, reducing thrust and reducing module load.
According to some embodiments, the invention adopts the following technical scheme:
in a first aspect, the invention provides a control device for switching on and off a miniature circuit breaker.
A control device for switching on and off a miniature circuit breaker comprises: the circuit breaker comprises a shell which can be clamped on a circuit breaker, wherein a guide rod is arranged in the shell, a rack is connected to the guide rod in a sliding mode, the rack is meshed with a reversing tooth, the reversing tooth is meshed with an arc-shaped handle, and a shifting tooth matched with a switch of the circuit breaker is arranged on the arc-shaped handle;
under manual control, the reversing teeth are separated from the rack, and the arc-shaped handle realizes the opening and closing operation of the circuit breaker under manual control;
under electric control, the reversing teeth are meshed with the racks, and the arc-shaped handle is driven by the reversing teeth to realize the opening and closing operation of the circuit breaker.
In a second aspect, the invention provides a working method of a control device for switching on and off a miniature circuit breaker
An operating method of a control device for switching on and off a miniature circuit breaker, which adopts the control device for switching on and off a miniature circuit breaker according to the first aspect, comprises the following steps:
under manual control, the reversing teeth are separated from the rack, and the arc-shaped handle realizes the opening and closing operation of the circuit breaker under manual control;
under electric control, the reversing teeth are meshed with the racks, and the arc-shaped handle is driven by the reversing teeth to realize the opening and closing operation of the circuit breaker.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the reciprocating motion of the rack is converted into the rotating motion again through the steering teeth, so that the effects of reducing the module volume, changing the motion state and increasing the torque are realized, the arc-shaped handle realizes the rotation at the same angle with the handle of the circuit breaker, the acting torque is reduced, the motor load is reduced, and the operation efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a structural view of a closing circuit breaker of a control device for opening and closing a micro circuit breaker under manual control according to the present invention;
fig. 2 is a structural diagram of a breaking circuit breaker of a control device for opening and closing a miniature circuit breaker under manual control according to the present invention;
fig. 3 is a structural diagram of a closing circuit breaker of a control device for opening and closing a micro circuit breaker under electric control according to the present invention;
fig. 4 is a structural diagram of a breaking circuit breaker of a control device for opening and closing a miniature circuit breaker under electric control according to the present invention;
FIG. 5 is a block diagram of the present invention shown in the arcuate handle;
FIG. 6 is a circuit diagram illustrating the present invention;
the circuit breaker comprises a motor 1, a motor 2, a gear pair 3, a rack 4, a first return spring 5, an arc-shaped groove 6, a reversing tooth 7, a second return spring 8, a third return spring 9, a guide rod 10, a shell 11, an arc-shaped handle 12 and a circuit breaker.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only terms of relationships determined for convenience in describing structural relationships of the components or elements of the present invention, and are not intended to refer to any components or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "connected" and the like are to be understood in a broad sense and mean either fixedly connected or integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
Example one
The embodiment provides a control device for switching on and off a miniature circuit breaker.
As shown in fig. 1 to 4, a control device for opening and closing a micro circuit breaker includes: the circuit breaker comprises a shell 10 which can be clamped on a circuit breaker 12, wherein a guide rod 9 is arranged in the shell 10, a rack 3 is connected onto the guide rod 9 in a sliding mode, the rack 3 is meshed with a reversing gear 6, the reversing gear 6 is meshed with an arc-shaped handle 11, and toggle teeth matched with a circuit breaker switch are arranged on the arc-shaped handle 11;
under manual control, the reversing teeth 6 are separated from the rack 3, and the arc-shaped handle 11 realizes the opening and closing operation of the circuit breaker 12 under manual control;
under the electric control, the reversing gear 6 is meshed with the rack 3, and the arc-shaped handle 11 is driven by the reversing gear 6 to realize the opening and closing operation of the circuit breaker 12.
Wherein the guide bar 9 is used to guide the rack 3.
As shown in fig. 5, the arc handle 11 includes two stirring teeth and a half gear, the external teeth on the half gear are engaged with the reversing teeth 6, a set distance is set between the two stirring teeth, and when the circuit breaker is used, the circuit breaker switch is always located between the two stirring teeth.
In one or more embodiments, an electric motor is provided in the housing 10, and the electric motor is connected to the gear pair 2 through a worm gear.
In one or more embodiments, the gear pair 2 is engaged with the rack 3. The rack 3 is disposed on top of the housing 10.
As one or more embodiments, a toothless portion of a set distance is provided on the rack 3. When the rack 3 is separated from the steering gear, the conversion gear is positioned at the section of the rack 3 without gear; when the rack 3 is engaged with the steering teeth, the switching teeth are located on the toothed portion of the rack 3. The reversing teeth 6 are arranged at the middle positions of the rack 3 and the arc-shaped handle 11, and meanwhile, the reversing teeth 6 are all meshed with the rack 3 and the arc-shaped handle 11, so that the horizontal movement of the rack 3 is converted into rotary movement, the rotary movement of the arc-shaped handle 11 is driven, the length of the rack 3 can be reduced, and the size of a module is reduced.
In one or more embodiments, the arc-shaped handle 11 is slidably disposed on the arc-shaped slot 5. The rotation center shaft of the arc-shaped handle 11 is concentric with the rotation center shaft of the breaker switch. The requirement is that the arc-shaped groove 5 is arranged to realize coaxial movement of the arc-shaped handle 11 and the circuit breaker switch, but the arc-shaped groove is not limited to the arc-shaped groove, and any scheme that can realize coaxial movement of the arc-shaped handle 11 and the circuit breaker switch belongs to the protection scope of the present embodiment.
As one or more embodiments, the arc-shaped handle 11 is arranged above the breaker switch, and the arc-shaped handle 11 can drive the breaker switch to rotate so as to realize the opening and closing operation of the breaker 12.
In one or more embodiments, a first return spring 4 is further disposed in the housing 10, and the first return spring 4 is disposed at a switching position of the arc-shaped handle 11. Specifically, the first return spring 4 is arranged at a switching-on position of the arc-shaped handle 11, the first return spring 4 is pressed after the arc-shaped handle 11 is switched on, and the first return spring 4 can enable the arc-shaped handle 11 to have reverse pre-tightening force so that the arc-shaped handle and the reversing tooth 6 are pre-meshed.
In one or more embodiments, a second return spring 7 is further disposed in the housing 10, and the second return spring 7 is disposed at the opening position of the arc-shaped handle 11. The second reset spring 7 is positioned below the opening position of the arc-shaped handle 11, the second reset spring 7 is pressed after the arc-shaped handle 11 is opened, and the second reset spring 7 can enable the arc-shaped handle 11 to have reverse pretightening force so as to enable the arc-shaped handle 11 to be pre-meshed with the reversing teeth 6.
In one or more embodiments, the guide rod 9 is provided with a third return spring 8 at both ends. The third return springs 8 are arranged at two ends of the rack 3, so that the rack 3 and the reversing gear 6 are in a pre-contact state after being separated, and the rack is rapidly meshed during reverse movement.
As shown in fig. 6, a position sensor 1, a position sensor 2, a position sensor 3 and a position sensor 4 are arranged in the object, the position sensor 1 and the position sensor 2 are both located on the rack 3, the position sensor 3 is arranged at the switching-on position of the arc-shaped handle 11, the position sensor 4 is arranged at the switching-off position of the arc-shaped handle 11, the position sensor 1, the position sensor 2, the position sensor 3 and the position sensor 4 are all connected with a micro control unit and a motor, and the micro control unit is connected with the motor.
The control logic of the embodiment: firstly, the position sensor 3 and the position sensor 4 sense the position of the arc-shaped handle 11, the idle on-off and on-off states are displayed on the background, if electric control is needed, the positions of the position sensor 1 and the position sensor 2 are judged through a Micro Control Unit (MCU), the situation that the rack 3 directly controls the on-off state or reverses to the control position firstly and then performs the on-off state is determined, if the stop state of the arc-shaped handle 11 is abnormal, the arc-shaped handle is not detected by the position sensor 3 and the position sensor 4, or the situation that the matching degree of the arc-shaped handle 11 is not proper and the like possibly occurs due to the fact that the sizes of switches of the circuit breaker are different, whether the torque feedback state is normal or not is simultaneously used as a judgment basis for motor operation, and finally whether the motor can normally operate and control is determined.
According to the invention, by arranging the position sensor, when the breaker switch reaches a set position, the arc-shaped handle 11 is contacted with the return switch, the motor 1 stops rotating, the steering teeth are separated from the arc-shaped handle 11, and the manual control on opening and closing of the arc-shaped handle 11 and the breaker switch can be realized.
Example two
The embodiment provides a working method of a control device for switching on and off a miniature circuit breaker
The working method of the control device for switching on and off the miniature circuit breaker adopts the control device for switching on and off the miniature circuit breaker, and comprises the following steps:
under manual control, the reversing gear 6 is separated from the rack 3, and the arc-shaped handle 11 realizes the opening and closing operation of the circuit breaker 12 under manual control;
under the electric control, the reversing gear 6 is meshed with the rack 3, and the arc-shaped handle 11 is driven by the reversing gear 6 to realize the opening and closing operation of the circuit breaker 12.
As shown in fig. 1 and 2 (the first return spring 4 and the second return spring 7 are not shown in fig. 1 and 2), the manual operation: during normal state, the reversing gear 6 and the rack 3 are in a separation state, the arc-shaped handle 11 is manually pushed, and the opening and closing operation of the circuit breaker 12 can be realized.
As shown in fig. 3 and 4 (the first return spring 4, the second return spring 7, and the third spring are not shown in fig. 3 and 4), the electric motor operates: during normal state, the reversing gear 6 and the rack 3 are in a separation state, the motor 1 rotates to drive the gear pair 2 to rotate, the gear pair 2 drives the rack 3 to move horizontally downwards, the reversing gear 6 and the rack 3 enter a meshing state, and the reversing gear 6 drives the arc-shaped handle 11 to move, so that the opening and closing operation of the circuit breaker 12 is realized. If the rack 3 is positioned at one end of the transmission rod (which can be referred to as the position corresponding to the transmission rod above the motor 1), the rack 3 is firstly driven to the other end of the transmission rod by rotating the motor 1 and the gear pair 2, and then the opening and closing operations are carried out.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a make controlling means of miniature circuit breaker divide-shut brake which characterized in that includes: the circuit breaker comprises a shell which can be clamped on a circuit breaker, wherein a guide rod is arranged in the shell, a rack is connected to the guide rod in a sliding mode, the rack is meshed with a reversing tooth, the reversing tooth is meshed with an arc-shaped handle, and a shifting tooth matched with a switch of the circuit breaker is arranged on the arc-shaped handle;
under manual control, the reversing teeth are separated from the rack, and the arc-shaped handle realizes the opening and closing operation of the circuit breaker under manual control;
under electric control, the reversing teeth are meshed with the racks, and the arc-shaped handle is driven by the reversing teeth to realize the opening and closing operation of the circuit breaker.
2. The control device for opening and closing the miniature circuit breaker according to claim 1, wherein a motor is arranged in the housing, and the motor is connected with the gear pair through a worm gear.
3. The control device for opening and closing the miniature circuit breaker according to claim 2, wherein said gear pair is engaged with a rack.
4. The control device for opening and closing the miniature circuit breaker according to claim 1, wherein a toothless portion of a set distance is provided on said rack.
5. The control device for opening and closing the miniature circuit breaker according to claim 1, wherein the arc-shaped handle is slidably disposed in the arc-shaped slot.
6. The control device for opening and closing the miniature circuit breaker according to claim 1, wherein the rotation center axis of said arc-shaped handle is concentric with the rotation center axis of the breaker switch.
7. The control device for switching on and off the miniature circuit breaker according to claim 1, wherein a first return spring is further arranged in the housing, and the first return spring is arranged at the switching-on position of the arc-shaped handle.
8. The control device for switching on and off the miniature circuit breaker according to claim 1, wherein a second return spring is further arranged in the housing, and the second return spring is arranged at the switching-off position of the arc-shaped handle.
9. The control device for opening and closing the miniature circuit breaker according to claim 1, wherein a third return spring is provided at both ends of the guide rod.
10. An operating method of a control device for opening and closing a miniature circuit breaker, characterized in that the control device for opening and closing a miniature circuit breaker according to any one of claims 1 to 9 is used, and comprises:
under manual control, the reversing teeth are separated from the rack, and the arc-shaped handle realizes the opening and closing operation of the circuit breaker under manual control;
under electric control, the reversing teeth are meshed with the racks, and the arc-shaped handle is driven by the reversing teeth to realize the opening and closing operation of the circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124648.4A CN114496671A (en) | 2022-02-10 | 2022-02-10 | Control device for switching on and off miniature circuit breaker and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124648.4A CN114496671A (en) | 2022-02-10 | 2022-02-10 | Control device for switching on and off miniature circuit breaker and working method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114496671A true CN114496671A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210124648.4A Pending CN114496671A (en) | 2022-02-10 | 2022-02-10 | Control device for switching on and off miniature circuit breaker and working method thereof |
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| CN (1) | CN114496671A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203134687U (en) * | 2013-03-12 | 2013-08-14 | 许继（厦门）智能电力设备股份有限公司 | Hand-operated energy storage mechanism |
| CN109741978A (en) * | 2019-03-04 | 2019-05-10 | 珠海优特电力科技股份有限公司 | It is remotely controlled micro- disconnected control device and switch block |
| CN209000855U (en) * | 2018-12-29 | 2019-06-18 | 山东省产品质量检验研究院 | A kind of mechanical manipulator suitable for leakage circuit breakers |
| CN110137003A (en) * | 2019-05-28 | 2019-08-16 | 乐清东海电器有限公司 | A kind of operating mechanism of automatic change-over |
| CN110896017A (en) * | 2019-11-29 | 2020-03-20 | 广东欧文特电气有限公司 | Operating mechanism of miniature circuit breaker |
| CN211605059U (en) * | 2020-04-02 | 2020-09-29 | 国网天津市电力公司电力科学研究院 | Air switch with counting function |
-
2022
- 2022-02-10 CN CN202210124648.4A patent/CN114496671A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203134687U (en) * | 2013-03-12 | 2013-08-14 | 许继（厦门）智能电力设备股份有限公司 | Hand-operated energy storage mechanism |
| CN209000855U (en) * | 2018-12-29 | 2019-06-18 | 山东省产品质量检验研究院 | A kind of mechanical manipulator suitable for leakage circuit breakers |
| CN109741978A (en) * | 2019-03-04 | 2019-05-10 | 珠海优特电力科技股份有限公司 | It is remotely controlled micro- disconnected control device and switch block |
| CN110137003A (en) * | 2019-05-28 | 2019-08-16 | 乐清东海电器有限公司 | A kind of operating mechanism of automatic change-over |
| CN110896017A (en) * | 2019-11-29 | 2020-03-20 | 广东欧文特电气有限公司 | Operating mechanism of miniature circuit breaker |
| CN211605059U (en) * | 2020-04-02 | 2020-09-29 | 国网天津市电力公司电力科学研究院 | Air switch with counting function |
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