CN111293011B - Intelligent sensing moving contact - Google Patents
Intelligent sensing moving contact Download PDFInfo
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- CN111293011B CN111293011B CN202010227196.3A CN202010227196A CN111293011B CN 111293011 B CN111293011 B CN 111293011B CN 202010227196 A CN202010227196 A CN 202010227196A CN 111293011 B CN111293011 B CN 111293011B
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- 230000008859 change Effects 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 229910052742 iron Inorganic materials 0.000 claims description 23
- 238000004804 winding Methods 0.000 claims description 17
- 230000000670 limiting effect Effects 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000008447 perception Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/06—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/12—Means for indicating condition of the switch
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses an intelligent sensing moving contact which comprises a moving contact piece, a flexible conductive piece, a wiring row, a first electromagnet, a second electromagnet, an operation interface, an electromagnet coil power supply and a controller, wherein one end of the moving contact piece is a contact end, the other end of the moving contact piece is a connecting end, the wiring end is electrically connected with one end of the flexible conductive piece, and the other end of the flexible conductive piece is fixed with the wiring row; the first electromagnet is positioned right above the contact end when the movable contact blade and the fixed contact are separated; the second electromagnet is positioned right below the contact end when the movable contact blade and the fixed contact are closed; the two sides or one side of the moving contact blade are fixed with insulating sliding blocks, a corresponding guide rail is arranged in the insulating shell, and a permanent magnet block is fixedly arranged at one end of the moving contact blade and used for enabling the moving contact blade to obtain closing magnetic force and opening magnetic force with the static contact when the first electromagnet and the second electromagnet change the current direction of the coil. The intelligent control switch-on and switch-off device for the movable contact and the fixed contact is capable of realizing intelligent control on the switch-on and switch-off of the movable contact and the fixed contact, convenient to operate and simple in structure.
Description
Technical Field
The invention relates to the technical field of breaker moving contacts. More particularly, the invention relates to an intelligent sensing moving contact.
Background
The circuit breaker is an important component of the electrical industry, has been widely used, and when an electrical circuit works normally, the circuit breaker can achieve the functions of power failure, power supply, circuit switching and the like by closing or opening a circuit for supplying electric energy. In the field of circuit breakers, the moving contact is usually connected in series by a contact blade with a flexible conductive element of the contact terminal block, connected to an external circuit; the fixed contact is arranged on the base and is connected with other external circuits; the moving contact drives the moving contact and the fixed contact to contact and leave through the mechanical linkage of the handle, but the mode of driving the moving contact to move through the mechanical linkage of the handle in the prior art is complex in mechanical structure, such as a circuit breaker with the name of the prior art, the publication number is CN 108878225A, the structure of enabling the moving contact and the fixed contact to contact and leave through the handle is very complex, the operation is troublesome, the intelligent control of the moving contact can not be realized, and the intelligent control of the circuit breaker is realized. And whether the moving contact and the fixed contact are closed in place cannot be known, if the moving contact and the fixed contact are closed in place, adverse effects of poor contact are caused, heat is easily generated, and the safety performance is reduced.
Disclosure of Invention
The invention aims to solve the problems of troublesome manual operation of a breaker moving contact for closing and complex structure.
In order to solve the technical problems and achieve the following advantages, the invention provides an intelligent sensing moving contact, which comprises a moving contact piece, a flexible conductive piece and a wiring row, wherein one end of the moving contact piece is a contact end, the other end of the moving contact piece is a first connecting end, the first wiring end is electrically connected with one end of the flexible conductive piece, and the other end of the flexible conductive piece is fixed with a second connecting end of the wiring row; further comprises: the device comprises a first electromagnet, a second electromagnet, an operation interface, an electromagnet coil power supply and a controller;
The first electromagnet is formed by winding an iron core through a conductive coil, and is positioned above the contact end and is positioned right above the contact end when the movable contact blade and the fixed contact are separated;
the second electromagnet is formed by winding an iron core through a conductive coil, and is positioned below the contact end and is positioned right below the contact end when the movable contact blade and the fixed contact are closed;
the two sides or one side of the moving contact blade are fixedly provided with insulating sliding blocks, and the inner wall of an insulating shell of the moving contact blade is provided with corresponding guide rails for sliding on the guide rails under the action of magnetic force of the first electromagnet and the second electromagnet, so that the moving contact blade and the fixed contact are switched on and off; a permanent magnet block is fixedly arranged at one end of the moving contact blade and is used for enabling the moving contact blade to obtain magnetic force for closing a fixed contact and magnetic force for opening a brake when the first electromagnet and the second electromagnet change the current direction of a coil;
The wiring row is fixed with the insulating shell;
The operation interface is arranged on the workbench or outside the cabinet body and is used for selecting the switching-on or switching-off of the movable contact blade and the fixed contact through an operation key on the operation interface;
an electromagnet coil power supply for supplying power to coils of the first electromagnet and the second electromagnet and switching a power supply current direction;
And the controller is electrically connected with the electromagnet coil power supply and the operation interface and is used for controlling the coil current directions of the first electromagnet and the second electromagnet through operation keys on the operation interface so that the moving contact blade can be switched on and off with the fixed contact.
Preferably, the upper end of the permanent magnet block is set as an N pole, the lower end of the permanent magnet block is an S pole, when the movable contact blade is selected to be closed with the fixed contact through an operation interface, the controller controls the coil current directions of the first electromagnet and the second electromagnet, so that the upper end of the first electromagnet is the S pole, the lower end of the first electromagnet is the N pole, the upper end of the second electromagnet is the N pole, the lower end of the second electromagnet is the S pole, the first electromagnet has downward repulsive force to one end of the movable contact blade, the second electromagnet has downward attractive force to one end of the movable contact blade, and the movable contact blade swings downwards to be contacted with the fixed contact for closing; when the movable contact blade and the fixed contact are separated through the operation interface, the controller controls the coil currents of the first electromagnet and the second electromagnet to change direction, so that the upper end of the first electromagnet is N pole, the lower end of the first electromagnet is S pole, the upper end of the second electromagnet is S pole, the lower end of the second electromagnet is N pole, the first electromagnet has upward attraction force to one end of the movable contact blade, the second electromagnet has upward repulsive force to one end of the movable contact blade, and the movable contact blade swings upwards to leave the separation gate with the fixed contact.
Preferably, the device also comprises a temperature sensor and an alarm;
The temperature sensor is arranged in the insulating shell and is used for measuring the temperature of the space in the insulating shell;
The alarm is arranged on the operation panel and used for giving an alarm when the temperature in the insulating shell is higher than a set value;
the controller is electrically connected with the temperature sensor and the alarm.
Preferably, the middle part of the guide rail is provided with a through hole, a section of vertical or inclined pipeline is outwards extended from the through hole, a movable insulating bolt is sleeved in the pipeline, an iron block is fixed at the outer end of the pipeline by the bolt, the width of the iron block is larger than the outer diameter of the pipeline, a third electromagnet is arranged right above the iron block and used for generating suction force or losing suction force on the iron block, and the bolt is controlled to generate a function of limiting sliding on an insulating sliding block on the guide rail.
Preferably, when the coil wound by the third electromagnet is electrified, the iron block is provided with upward suction force, so that the bolt does not pass through the through hole, and the guide rail is kept smooth; when the coil wound by the third electromagnet is powered off or is not powered on, the iron block is not attracted, the bolt moves downwards due to the action of gravity, the inner end of the bolt penetrates through the through hole, a barrier is formed on the guide rail, and the insulation sliding block is limited to slide in the guide rail.
Preferably, the winding coils of the first electromagnet, the second electromagnet and the third electromagnet are connected in series, and the winding directions of the coils of the first electromagnet and the second electromagnet are opposite, so that when the winding coils are powered off or power failure and other accidents occur, the coil of the third electromagnet is powered off, the plug pin can limit sliding of the insulating sliding block, misoperation caused by faults is avoided, and safety performance is improved.
Preferably, one end of the bolt is provided with an iron block, the other end of the bolt is provided with a limiting block, one port of the pipeline connecting through hole is large, the other port is small, the bolt is prevented from slipping outwards or being separated from the sleeving of the pipeline, and the limiting block improves the blocking effect on the insulating sliding block.
Preferably, when the movable contact blade and the fixed contact are switched on, two proximity type position sensors are arranged at projection positions of the movable contact blade on the side wall of the insulating shell, the two proximity type position sensors are arranged in an up-down arrangement mode, and the two proximity type position sensors are electrically connected with the controller.
The invention at least comprises the following beneficial effects:
1. According to the invention, through the operation keys on the operation interface, the coil current directions of the first electromagnet and the second electromagnet are controlled, so that the moving contact piece can be switched on and off with the fixed contact, the intelligent control of the switching on and off of the moving contact and the fixed contact is realized, the operation is convenient, and the structure is simple.
2. According to the invention, the temperature sensor is arranged in the insulating shell, and the alarm is sent out when the temperature in the shell is higher than a set value through the alarm edge, so that the safety performance is improved.
3. According to the invention, the through hole is formed in the middle of the guide rail, the through hole is outwards extended to form a section of vertical or inclined pipeline, the movable insulating bolt is sleeved in the pipeline, and the expansion and contraction of the bolt are controlled through the third electromagnet, so that when faults or overhauls occur, the movable contact sheet is limited in the middle of the guide rail when the coils of the first electromagnet and the second electromagnet are in power failure, forced non-closing operation is realized, and fault handling and overhauling are facilitated.
4. According to the invention, the winding coils of the first electromagnet, the second electromagnet and the third electromagnet are connected in series, so that the winding direction of the coils of the first electromagnet is opposite to that of the coils of the second electromagnet, and when the winding coils are powered off or power failure and other accidents occur, the coils of the third electromagnet are powered off, the plug pin can limit the sliding of the insulating sliding block, misoperation caused by faults is avoided, and the safety performance is improved.
5. One end of the bolt is provided with an iron block, and the other end of the bolt is provided with a limiting block, so that the bolt can be prevented from slipping outwards or being separated from the sleeve of the pipeline, and the limiting block can extend into the guide rail, and the blocking effect on the insulating sliding block is improved.
6. According to the invention, when the movable contact blade and the fixed contact are switched on, the projection position of the movable contact blade on the side wall of the insulating shell is provided with two proximity position sensors which are arranged up and down, so that the situation that the movable contact blade and the fixed contact are switched on in place can be sensed conveniently. Such as: when two proximity position sensors sense signals at the same time, an indication of closing in place is obtained; when only one proximity position sensor senses a signal, an indication that the closing is not in place is obtained, so that the closing or overhaul can be conveniently carried out again in time; when the two proximity position sensors do not sense signals at the same time, an indication of opening the brake is obtained.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of an implementation form structure of the intelligent sensing switch-on of a moving contact and a fixed contact;
FIG. 2 is a schematic diagram of the structure of the intelligent sensing switch-on/switch-off device of the invention;
FIG. 3 is a schematic diagram of another implementation form of the intelligent sensing moving contact of the present invention;
FIG. 4 is an enlarged schematic view of FIG. 3A;
wherein, the first electromagnet 1; the permanent magnet is fast 2; an insulating slider 3; a contact end 4; a stationary contact 5; a second electromagnet 6; a guide rail 7; a moving contact piece 8; a first terminal 9; a wiring row 10; an insulating housing 11; a flexible conductive member 12; a plug pin 13; a third electromagnet 14; a temperature sensor 15; a proximity position sensor 16; an iron block 17; a conduit 18; a stopper 19; and a through hole 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the terms "comprising" or "includes" and the like in this disclosure is intended to cover an element or article listed after that term and equivalents thereof without precluding other elements or articles. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed description of known functions and known components.
Examples
1-2 Show a specific implementation form of the invention, the intelligent sensing moving contact comprises a moving contact blade 8, a flexible conductive piece 12 and a wiring row 10, one end of the moving contact blade 8 is a contact end 4, the other end of the moving contact blade 8 is a first connecting end 9, the first connecting end 9 is electrically connected with one end of the flexible conductive piece 12, and the other end of the flexible conductive piece 12 is fixed with a second connecting end of the wiring row 10; further comprises: the device comprises a first electromagnet 1, a second electromagnet 6, an operation interface, an electromagnet coil power supply and a controller;
the first electromagnet 1 is formed by winding an iron core through a conductive coil, and is positioned above the contact end 4 and is positioned right above the contact end 4 when the movable contact blade and the fixed contact are separated;
The second electromagnet 6 is formed by winding an iron core through a conductive coil, and the second electromagnet 6 is positioned below the contact end 4 and is positioned right below the contact end 4 when the moving contact blade and the fixed contact are closed;
The two sides or one side of the moving contact blade 8 are fixedly provided with insulating sliding blocks 3, and the inner wall of an insulating shell 11 of the moving contact blade 8 is provided with corresponding guide rails 7, so that the insulating sliding blocks 3 slide on the guide rails 7 under the action of the magnetic force of the first electromagnet 1 and the magnetic force of the second electromagnet 6 to enable the moving contact blade 8 to be switched on and off with the fixed contact 5; a permanent magnet block 2 is fixedly arranged at one end of the moving contact piece 8 and is used for enabling the moving contact piece 8 to obtain magnetic force for closing and magnetic force for opening the static contact 5 when the first electromagnet 1 and the second electromagnet 6 change the coil current direction;
The wiring board 10 is fixed with the insulating shell 11;
the operation interface is arranged on the workbench or outside the cabinet body and is used for selecting the switching-on or switching-off of the movable contact blade 8 and the fixed contact 5 through an operation key on the operation interface;
An electromagnet coil power supply for supplying power to coils of the first electromagnet 1 and the second electromagnet 6 and switching a power supply current direction;
And the controller is electrically connected with the electromagnet coil power supply and the operation interface and is used for controlling the coil current directions of the first electromagnet 1 and the second electromagnet 6 through operation keys on the operation interface so that the moving contact blade 8 can be switched on and off with the fixed contact.
The implementation process of the invention is as follows: through operating the operation interface on the workstation or outside the cabinet body, select corresponding button, trigger the controller and send the instruction and give the electro-magnet coil power supply ware, make it give the coil power supply of first electro-magnet 1 and second electro-magnet 6 and switch the power supply current direction, produce the magnetic force of corresponding direction for permanent magnet piece 2 on moving contact piece 8 one end, make moving contact piece 8 can close or break brake with stationary contact 5, realize intelligent control moving contact and stationary contact's closing and opening brake, convenient operation, simple structure. Such as: when the movable contact piece 8 is switched on with the fixed contact 5 through an operation interface, the controller controls the coil current directions of the first electromagnet 1 and the second electromagnet 6 to enable the upper end of the first electromagnet 1 to be the S pole, the lower end of the first electromagnet to be the N pole, the upper end of the second electromagnet 6 to be the N pole, the lower end of the second electromagnet to be the S pole, the first electromagnet 1 has downward repulsive force to one end of the movable contact piece 8, and the second electromagnet 6 has downward attractive force to one end of the movable contact piece 8, so that the movable contact piece 8 swings downwards to be contacted with the fixed contact 5 for switching on; when the movable contact piece 8 is selected to be separated from the fixed contact 5 through the operation interface, the controller controls the coil currents of the first electromagnet 1 and the second electromagnet 6 to change so that the upper end of the first electromagnet 1 is N pole, the lower end of the first electromagnet is S pole, the upper end of the second electromagnet 6 is S pole, the lower end of the second electromagnet is N pole, the first electromagnet 1 has upward attraction force to one end of the movable contact piece 8, and the second electromagnet 6 has upward repulsive force to one end of the movable contact piece 8, so that the movable contact piece 8 swings upwards to separate from the fixed contact 5.
Further comprising a temperature sensor 15 and an alarm (not shown) on the basis of the above embodiment;
A temperature sensor 15 is provided in the insulating housing 11 for measuring the temperature of the space in the insulating housing;
the alarm is arranged on the operation panel and used for giving an alarm when the temperature in the insulating shell 11 is higher than a set value so as to improve the safety performance; the controller is electrically connected with the temperature sensor and the alarm.
On the basis of the above embodiment, fig. 3 shows another implementation form, the middle part of the guide rail 7 is provided with a through hole 20, the through hole 20 is extended outwards to form a section of vertical or inclined pipeline 18, a movable insulating plug pin 13 is sleeved in the pipeline 18, the plug pin 13 is fixed with an iron block 17 at the outer end of the pipeline 18, the width of the iron block 17 is larger than the outer diameter of the pipeline 18, a third electromagnet 14 is arranged right above the iron block 17, and the third electromagnet 14 is used for generating suction force or losing suction force on the iron block 17 so as to control the plug pin 13 to generate a sliding limiting effect on the insulating sliding block 3 on the guide rail 7. The particular arrangement of the pins 13, through holes 20 extending outwardly of a length of vertical or inclined tubing 18 can be seen in the enlarged schematic view of fig. 4, shown at a.
The implementation process is as follows: when the coil wound by the third electromagnet 14 is electrified, the iron block 17 is provided with upward suction force, so that the bolt 13 does not pass through the through hole 20, and the guide rail 7 is kept smooth; when the coil wound by the third electromagnet 14 is powered off or is not powered on, no suction force is applied to the iron block 17, the plug pin 13 moves downwards under the action of gravity, the inner end of the plug pin 13 passes through the through hole 20, an obstacle is formed on the guide rail 7, and the insulating sliding block 3 is limited to slide in the guide rail 7.
On the basis of the embodiment, the winding coils of the first electromagnet 1, the second electromagnet 6 and the third electromagnet 14 are connected in series, and the winding directions of the coils of the first electromagnet 1 and the second electromagnet 6 are opposite, so that when the winding coils are powered off or power failure and other accidents occur, the coils of the third electromagnet 14 are powered off simultaneously, and the plug pin 13 plays a role in limiting sliding of the insulating sliding block 3. When the coils of the first electromagnet 1 and the second electromagnet 6 are in power failure during fault or maintenance, the contact end 4 of the movable contact sheet 8 is limited in the middle of the guide rail 7, forced non-closing operation is realized, and fault treatment and maintenance are facilitated.
On the basis of the embodiment, one end of the bolt 13 is provided with the iron block 7, the other end is provided with the limiting block 19, one port of the pipeline 18 connected with the through hole 20 is large, and the other port is small, so that the bolt 13 is prevented from slipping outwards or being separated from the sleeving of the pipeline 18, the limiting block 19 is generally larger than the outer diameter of the bolt 13, the limiting block 19 extends into the guide rail 7, and the blocking effect on the sliding down of the insulating sliding block 3 is improved. A specific arrangement may be seen in fig. 4 showing an enlarged schematic of a.
On the basis of the embodiment, when the movable contact 8 and the fixed contact 5 are switched on, two proximity type position sensors 16 are arranged on the projection positions of the movable contact 8 on the side wall of the insulating shell 11, the two proximity type position sensors 16 are electrically connected with the controller, and the two proximity type position sensors 16 are arranged in an up-down arrangement mode, so that the situation that the movable contact and the fixed contact are switched on in place can be sensed conveniently. The implementation process is as follows: when two proximity position sensors 16 sense signals at the same time, an indication of closing in place is obtained; when only one proximity position sensor 16 senses a signal, an indication that the closing is not in place is obtained, so that the closing or maintenance can be timely carried out again; when the two proximity position sensors 16 sense no signal at the same time, an indication of opening is obtained, so that the situation that the moving contact 8 and the fixed contact 5 are closed in place can be perceived.
Although embodiments of the invention have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (5)
1. The utility model provides an intelligent perception moving contact, its includes moving contact piece, flexible conductive part and wiring row, the one end of moving contact piece is the contact end, and the other end of moving contact piece is first link, first wiring end with the one end electricity of flexible conductive part is connected, and the other end of flexible conductive part is fixed with the second link of wiring row, its characterized in that still includes: the device comprises a first electromagnet, a second electromagnet, an operation interface, an electromagnet coil power supply and a controller;
the first electromagnet is formed by winding an iron core through a conductive coil, and is positioned above the contact end and is positioned right above the contact end when the movable contact blade and the fixed contact are separated;
The second electromagnet is formed by winding an iron core through a conductive coil, and is positioned below the contact end and is positioned right below the contact end when the moving contact blade and the fixed contact are closed;
The two sides or one side of the moving contact blade are fixedly provided with insulating sliding blocks, and the inner wall of an insulating shell of the moving contact blade is provided with corresponding guide rails for sliding on the guide rails under the action of magnetic force of the first electromagnet and the second electromagnet so as to enable the moving contact blade to be switched on and switched off with the fixed contact; a permanent magnet block is fixedly arranged at one end of the moving contact blade and is used for enabling the moving contact blade to obtain magnetic force for closing a fixed contact and magnetic force for opening a brake when the first electromagnet and the second electromagnet change the current direction of a coil; the middle part of the guide rail is provided with a through hole, the through hole extends outwards to form a section of inclined pipeline, a movable insulating bolt is sleeved in the pipeline, an iron block is fixed at the outer end of the pipeline by the bolt, the width of the iron block is larger than the outer diameter of the pipeline, a third electromagnet is arranged right above the iron block and used for generating suction force or losing suction force on the iron block so as to control the bolt to generate a sliding limiting effect on an insulating sliding block on the guide rail; one end of the bolt is provided with an iron block, the other end of the bolt is provided with a limiting block, and one port of the pipeline connecting through hole is large, and the other port is small, so that the bolt is prevented from slipping outwards or being separated from the sleeve of the pipeline;
the wiring bars are fixed with the insulating shell;
The operation interface is arranged on the workbench or outside the cabinet body and is used for selecting the switching-on or switching-off of the movable contact blade and the fixed contact through operation keys on the operation interface;
the electromagnet coil power supply is used for supplying power to coils of the first electromagnet and the second electromagnet and switching the power supply current direction;
The controller is electrically connected with the electromagnet coil power supply and the operation interface and is used for controlling the coil current directions of the first electromagnet and the second electromagnet through operation keys on the operation interface so that the moving contact blade can be switched on and off with the fixed contact;
the temperature sensor and the alarm are also included;
the temperature sensor is arranged in the insulating shell and is used for measuring the temperature of the space in the insulating shell;
The alarm is arranged on the operation panel and used for giving an alarm when the temperature in the insulating shell is higher than a set value;
the controller is electrically connected with the temperature sensor and the alarm.
2. The intelligent sensing moving contact according to claim 1, wherein the upper end of the permanent magnet block is set as an N pole, the lower end is set as an S pole, when the moving contact piece is selected to be closed with the fixed contact through the operation interface, the controller controls the coil current directions of the first electromagnet and the second electromagnet, so that the upper end of the first electromagnet is the S pole, the lower end of the first electromagnet is the N pole, the upper end of the second electromagnet is the N pole, the lower end of the second electromagnet is the S pole, the first electromagnet has a downward repulsive force to one end of the moving contact piece, the second electromagnet has a downward attractive force to one end of the moving contact piece, and the moving contact piece swings downwards to be closed with the fixed contact; when the movable contact blade and the fixed contact are separated through the operation interface, the controller controls the coil currents of the first electromagnet and the second electromagnet to change direction, so that the upper end of the first electromagnet is N pole, the lower end of the first electromagnet is S pole, the upper end of the second electromagnet is S pole, the lower end of the second electromagnet is N pole, the first electromagnet has upward attraction force to one end of the movable contact blade, the second electromagnet has upward repulsive force to one end of the movable contact blade, and the movable contact blade swings upwards to leave the separation gate with the fixed contact.
3. The intelligent sensing moving contact according to claim 1, wherein when the coil wound by the third electromagnet is powered on, the iron block is provided with upward suction force, so that the bolt does not pass through the through hole, and the guide rail is kept smooth; when the coil wound by the third electromagnet is powered off or is not powered on, the iron block is not attracted, the bolt moves downwards due to the action of gravity, the inner end of the bolt penetrates through the through hole, a barrier is formed on the guide rail, and the insulation sliding block is limited to slide in the guide rail.
4. The intelligent sensing moving contact of claim 1, wherein the winding coils of the first electromagnet, the second electromagnet and the third electromagnet are connected in series, and the winding directions of the coils of the first electromagnet and the second electromagnet are opposite.
5. The intelligent sensing movable contact according to claim 1, wherein when the movable contact blade is switched on with the fixed contact, two proximity position sensors are arranged on the projection position of the movable contact blade on the side wall of the insulating shell, the two proximity position sensors are arranged in an up-down arrangement, and the two proximity position sensors are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010227196.3A CN111293011B (en) | 2020-03-27 | 2020-03-27 | Intelligent sensing moving contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010227196.3A CN111293011B (en) | 2020-03-27 | 2020-03-27 | Intelligent sensing moving contact |
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| Publication Number | Publication Date |
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| CN111293011A CN111293011A (en) | 2020-06-16 |
| CN111293011B true CN111293011B (en) | 2024-05-03 |
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| CN202010227196.3A Active CN111293011B (en) | 2020-03-27 | 2020-03-27 | Intelligent sensing moving contact |
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| CN (1) | CN111293011B (en) |
Citations (8)
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| CN103985606A (en) * | 2014-03-31 | 2014-08-13 | 国家电网公司 | Contact structure and method for eliminating closing bounce |
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| CN107863265A (en) * | 2017-11-17 | 2018-03-30 | 国网青海省电力公司 | A kind of distribution breaker |
| CN108400056A (en) * | 2018-03-15 | 2018-08-14 | 南方电网科学研究院有限责任公司 | A kind of dc circuit breaker based on twin coil Monostable permanent magnetic mechanism |
| CN109830401A (en) * | 2019-04-04 | 2019-05-31 | 岳盛仙 | A kind of vacuum switch |
| CN211879324U (en) * | 2020-03-27 | 2020-11-06 | 广西华超电气有限公司 | Intelligent sensing moving contact |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63145142A (en) * | 1986-12-06 | 1988-06-17 | Takeo Suezawa | Noncontact electricity collecting equipment through electromagnetic induction system using rectilinear conductor and iron-core coil |
| CN201956269U (en) * | 2011-04-12 | 2011-08-31 | 浙宝开关(杭州)有限公司 | Rapid permanent magnetic vacuum switch |
| CN103985606A (en) * | 2014-03-31 | 2014-08-13 | 国家电网公司 | Contact structure and method for eliminating closing bounce |
| WO2018010372A1 (en) * | 2016-07-15 | 2018-01-18 | 江苏现代电力科技股份有限公司 | Intelligent circuit breaker for shunt capacitor bank switching based on flexible opening and closing technology |
| CN107863265A (en) * | 2017-11-17 | 2018-03-30 | 国网青海省电力公司 | A kind of distribution breaker |
| CN108400056A (en) * | 2018-03-15 | 2018-08-14 | 南方电网科学研究院有限责任公司 | A kind of dc circuit breaker based on twin coil Monostable permanent magnetic mechanism |
| CN109830401A (en) * | 2019-04-04 | 2019-05-31 | 岳盛仙 | A kind of vacuum switch |
| CN211879324U (en) * | 2020-03-27 | 2020-11-06 | 广西华超电气有限公司 | Intelligent sensing moving contact |
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| Publication number | Publication date |
|---|---|
| CN111293011A (en) | 2020-06-16 |
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