CN115602462A - Remote switching switch with self-checking function - Google Patents
Remote switching switch with self-checking function Download PDFInfo
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- CN115602462A CN115602462A CN202211165032.8A CN202211165032A CN115602462A CN 115602462 A CN115602462 A CN 115602462A CN 202211165032 A CN202211165032 A CN 202211165032A CN 115602462 A CN115602462 A CN 115602462A
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- electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/167—Circuits for remote indication
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention discloses a remote fling-cut switch with a self-checking function, which belongs to the technical field of fling-cut switches and comprises a shell, a main control board, a switch assembly, a self-checking baffle, a solid-state relay and a remote control module, wherein the switch assembly comprises a static contact piece and a movable contact piece, and the output end of the solid-state relay is respectively connected with two ends of the movable contact piece and two ends of the movable contact piece in parallel; a first electromagnet is arranged above the movable contact piece, and the movable end of the first electromagnet is connected with the movable contact piece in an abutting mode; the contact piece is transversely equipped with the slot, be equipped with movable self-checking baffle in the slot, self-checking baffle one end is connected and is equipped with the second electro-magnet, the second electro-magnet is used for controlling the motion of self-checking baffle. The switching switch adopts the thyristor to control zero-crossing switching, solves the problem of inrush current of switching, and does not cause various problems caused by the inrush current. The power loss is reduced.
Description
Technical Field
The invention relates to the technical field of fling-cut switches, in particular to a remote fling-cut switch with a self-checking function.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
In an electric power distribution system, reactive compensation is mainly compensated by two modes, namely dynamic compensation and static compensation. For a power distribution system with a stable load, a mechanical contactor is mostly adopted for switching in a compensation mode. However, because the response time of the contactor is relatively long, the demand of the compensation method for reactive power of fluctuating loads in the system and the timely response of the system power factor cannot be well met. Therefore, when the load which is changed quickly and started and stopped frequently exists in the power distribution system, the switching of the thyristor type electronic switch is mainly adopted, the change of the load is responded in time, and the compensation effect is good. However, the thyristor type electronic switch has the disadvantages of large heat productivity, poor heat dissipation performance and short mechanical life, and the thyristor switch is easy to damage, thereby causing adverse effects on the safe operation of a power supply system. At present, a composite switch form combining a thyristor and a mechanical switch is also available, and the switch of the type cannot realize the defects of switch state self-checking and remote control, so that a remote switch with the advantages of long service life, operation problems and capability of realizing the self-checking function is required to be designed to meet the requirements of the application scene of the switch.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects in the prior art are overcome, and the remote fling-cut switch with the self-checking function is provided.
In order to solve the problems, the invention adopts the technical scheme that:
a remote fling-cut switch with a self-checking function comprises a shell, a main control board, a switch assembly, a self-checking baffle, a solid-state relay and a remote control module, wherein the main control board, the switch assembly, the solid-state relay and the remote control module are fixedly arranged in the shell respectively; the switch assembly comprises a static contact piece and a movable contact piece, the movable contact piece is connected with the static contact piece in an abutting mode, two ends of the static contact piece and two ends of the movable contact piece are respectively connected with a wiring board, and the output end of the solid-state relay is connected with two ends of the movable contact piece and two ends of the movable contact piece in parallel; a first electromagnet is arranged above the movable contact piece, and the movable end of the first electromagnet is connected with the movable contact piece in an abutting mode; a slot is transversely formed in the contact piece, a movable self-checking baffle is arranged in the slot, one end of the self-checking baffle is connected with a second electromagnet, and the second electromagnet is used for controlling the movement of the self-checking baffle; the switch assembly, the solid-state relay, the remote control module, the first electromagnet and the second electromagnet are respectively electrically connected with the main control board.
Furthermore, a rotating shaft penetrates through one end of the movable contact piece, the movable contact piece rotates along the rotating shaft, the rotating shaft is fixedly connected with the shell, a spring is arranged below the movable contact piece, and two ends of the spring are respectively abutted to the movable contact piece and the shell.
Furthermore, the movable contact piece comprises a conductor and a contact shell, the conductor is arranged in the contact shell, a lock catch body is arranged on the contact shell, a stop pin is arranged on the shell and is connected with the lock catch body in a matched mode, one end of the stop pin is connected with a third electromagnet, and the third electromagnet is used for controlling the stop pin to move.
Furthermore, a through hole is formed in the self-checking baffle, the size of the through hole is equal to the outer diameter of the movable end of the first electromagnet, and the movable end of the first electromagnet can freely penetrate through the through hole.
Furthermore, a first position switch is arranged on one side of the first electromagnet and used for detecting the position of the movable end of the first electromagnet.
Furthermore, a second position switch is arranged on one side of the third electromagnet and used for detecting the position of the movable end of the third electromagnet.
Furthermore, a current coil and a voltage coil are arranged on the static contact piece in a penetrating mode and are respectively and electrically connected with the main control board.
Furthermore, the main control board comprises a power panel and a mainboard, and the mainboard comprises a single chip microcomputer unit, a memory unit, a clock unit, a digital-to-analog conversion unit, a digital display unit, an indicator light unit and a key unit.
Further, the remote control module is a bluetooth module.
A switching method of a remote switching switch with a self-checking function comprises a switching-on method and a switching-off method; the switching-on method comprises a switching-on self-detection step A and a switching-on step B; the brake separating method comprises a brake separating self-checking step C and a brake separating step D;
the self-checking closing step A comprises the following steps:
step a1, triggering a closing self-check through a closing key on a fling-cut switch;
step a2, at the moment, the fling-cut switch is in a switching-off state, after a main control board receives a switching-on command, a switching-on self-checking program is started, the main control board outputs a switching-on self-checking signal and controls a second electromagnet to act, the second electromagnet drives a self-checking baffle to slide along a groove and is used for extending out of a through hole in the self-checking baffle, a movable end of a first electromagnet can freely pass through the through hole, at the moment, the main control board only controls the first electromagnet to extend out, the first electromagnet cannot jack up a movable contact piece, and the effect of self-checking and non-switching-on is achieved;
a3, according to the step a2, after the first electromagnet acts, detecting whether the first electromagnet acts through a first position switch, judging that the self-checking of the closing is successful if the first position switch detects that the first electromagnet acts, and sending a self-checking result to a main control board, judging that the self-checking of the closing is failed if the first electromagnet does not act, and sending a self-checking result to the main control board, judging whether a closing program needs to be continued or not through the main control board, and after the self-checking program is finished, restoring the first electromagnet and a self-checking baffle to an initial state;
the switching-on step B comprises the following steps:
step b1, completing the self-checking step A of closing, if the self-checking is successful, opening a closing program,
b2, the main control board sends a closing command when the voltage crosses zero by acquiring real-time voltage on the static contact piece of the fling-cut switch;
b3, the main control board firstly controls the solid state relay to be conducted, at the moment, the movable contact piece and the fixed contact piece are not switched on, and the conduction is realized only under the action of the solid state relay;
b4, the main control board controls the switch assembly to be switched on, the main control board controls the first electromagnet to extend out, the movable contact piece moves towards the static contact piece under the ejection action of the first electromagnet, and the switching-on action of the mechanical contact is realized;
step b5, after the step b4 is completed, the movable contact piece and the static contact piece are successfully switched on, the locking body is blocked on the blocking pin, and under the action of the blocking pin, the movable contact piece and the static contact piece are connected together in a locking way, so that mechanical switching-on maintenance is realized;
b6, after the switch assembly is switched on, the main control board controls the output of the solid-state relay to be disconnected, and the switching-on operation step is completed;
the switching-off self-checking step C comprises the following steps:
step c1, triggering brake-off self-checking through a brake-off key on the fling-cut switch;
step c2, the fling-cut switch is in a closing state at the moment, after the main control board receives a closing command, a closing self-checking program is started, the main control board outputs a closing self-checking signal to control the first electromagnet to act, the first electromagnet is ejected out to prop against the movable contact piece to prevent the movable contact piece from being opened, meanwhile, the third electromagnet is controlled to act to drive the stop pin to withdraw to act for releasing the lock catch body, and the movable contact piece is jacked up under the action of the first electromagnet to play a role of self-checking and not closing;
step c3, according to the step c2, after the third electromagnet acts, whether the third electromagnet acts is detected through the second position switch, if the second position switch detects that the third electromagnet acts, the switching-off self-inspection is judged to be successful, a self-inspection result is sent to the main control board, if the third electromagnet does not act, the switching-off self-inspection is judged to be failed, a self-inspection failure result is sent to the main control board, the main control board judges whether the switching-off procedure needs to be continued, and after the self-inspection procedure is finished, the first electromagnet and the stop pin are both restored to the initial state;
the opening step D comprises the following steps:
step d1, completing the closing self-checking step C, if the opening self-checking is successful, opening the opening program,
d2, the main control board controls the solid state relay to be conducted firstly, at the moment, the movable contact piece and the static contact piece are not separated, and the solid state relay and the switch component are in a conducting state at the same time;
d3, the main control board controls the switch component to be opened, the main control board controls the third electromagnet to pull back, the stop pin is pulled back under the action of the third electromagnet to release the lock catch body, the movable contact piece moves away from the static contact piece under the elastic force of the spring, and the mechanical contact opening action is realized;
and d4, the main control board acquires real-time current on the static contact piece of the fling-cut switch through the current coil, and when the current crosses the zero point, the main control board controls the solid-state relay to be disconnected, so that the opening operation step is completed.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a remote switching switch with a self-checking function, which adopts a thyristor to control zero-crossing switching, solves the problem of switching inrush current and does not cause various problems caused by the inrush current. The power loss is reduced. The service life of the fling-cut switch is prolonged, and the impact on other electric equipment is reduced.
2. The invention provides a remote fling-cut switch with a self-checking function, which has the self-checking function, and a mechanical self-checking program is firstly carried out before switching on or switching off, so that the switching on and switching off of the fling-cut switch under the condition of good operation are ensured.
Drawings
FIG. 1 is a schematic view of the front view structure of the device of the present invention;
FIG. 2 is a schematic diagram of the side view of the device of the present invention;
FIG. 3 is a schematic diagram of a main control board structure of the apparatus of the present invention;
FIG. 4 is a schematic view of the internal structure of the apparatus of the present invention;
FIG. 5 is a schematic side view of the internal structure of the apparatus of the present invention;
FIG. 6 is an enlarged view of a part of the apparatus A of the present invention;
fig. 7 is a schematic structural diagram of the movable contact piece of the device of the invention.
In the figure: 1. the device comprises a shell, 2, a main control board, 3, a switch assembly, 4, a self-checking baffle, 5, a solid-state relay, 6, a remote control module, 7, a wiring board, 8, a first electromagnet, 9, a second electromagnet, 10, a first position switch, 11, a second position switch, 12, a heat dissipation plate, 13, a heat dissipation window, 31, a static contact piece, 32, a movable contact piece, 33, a rotating shaft, 34, a spring, 35, a conductor, 36, a contact shell, 37, a lock catch body, 38, a stop pin, 39, a third electromagnet, 40, a slot, 42, a through hole, 43 and a current coil.
Detailed Description
The present invention is further described in detail with reference to the accompanying drawings, the following embodiments are merely for better clarity of the technical solutions of the present invention, and variations made by those skilled in the art on the basis of the embodiments of the present invention are within the protective scope of the present invention.
In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure.
As shown in fig. 1 to 7, the invention provides a remote switching switch with a self-checking function, which includes a housing 1, a main control board 2, a switch assembly 3, a self-checking baffle 4, a solid-state relay 5, and a remote control module 6, wherein the main control board 2, the switch assembly 3, the solid-state relay 5, and the remote control module 6 are respectively and fixedly disposed in the housing 1; the switch assembly 3 comprises a static contact piece 31 and a movable contact piece 32, the movable contact piece 32 is connected with the static contact piece 31 in an abutting mode, the two ends of the static contact piece 31 and the two ends of the movable contact piece 32 are respectively connected with a wiring board 7, and the output end of the solid-state relay 5 is respectively connected with the two ends of the movable contact piece 31 and the two ends of the movable contact piece 32 in parallel; a first electromagnet 8 is arranged above the moving contact piece 31, and the movable end of the first electromagnet 8 is connected with the moving contact piece 32 in an abutting mode; a slot 40 is transversely arranged on the moving contact piece 32, a movable self-checking baffle 4 is arranged in the slot 40, one end of the self-checking baffle 4 is connected with a second electromagnet 9, and the second electromagnet 9 is used for controlling the movement of the self-checking baffle 4; the switch component 3, the solid-state relay 5, the remote control module 6, the first electromagnet 8 and the second electromagnet 9 are electrically connected with the main control board 2 respectively. The self-checking baffle 4 is used for providing closing self-checking for the switching switch in the embodiment of the invention. The solid-state relay 5 is connected with two ends of the moving and static contacts of the switching switch in parallel and used for being switched on in advance when switching on or being switched off after switching off time lag. In the embodiment of the invention, the solid-state relay 5 is only switched on for a period of time before the switching switch is switched on and after the switching switch is switched off, and the solid-state relay 5 is switched off at ordinary time, so that the service life of the solid-state relay 5 is prolonged. In the embodiment of the invention, a heat dissipation plate 12 is arranged in the fling-cut switch, a heat dissipation window 13 is arranged on the shell 1, and the heat dissipation plate 12 extends from the inside of the heat dissipation window 13 to the outside of the shell 1. The heat dissipation plate 12 is made of copper plate or aluminum plate. In the embodiment of the present invention, the number of the solid state relays 5 is 3, and the solid state relays 5 are respectively connected to three phases of the fling-cut switch, and the solid state relays 5 are fixedly disposed on the heat dissipation plate 12. The heat dissipation plate 12 is provided with bolt holes for fixing the solid state relay 5. In the embodiment of the invention, the structural design of the heat dissipation plate 12 is adopted, so that the heat dissipation effect of the solid-state relay 5 is greatly enhanced, and the reliability and the stability of the solid-state relay are improved. In the embodiment of the invention, the self-checking baffle 4 can freely move in the slot 40, and the self-checking baffle 4 is used for blocking the movable end of the first electromagnet 8 so as to push the movable contact piece 32 to close. When the self-checking baffle 4 withdraws, the movable end of the first electromagnet 8 cannot be blocked, at the moment, the self-checking function can be realized, and whether the action of the first electromagnet 8 realizes the switching-on function or not is realized by controlling the movement of the self-checking baffle 4.
As shown in fig. 5 and 7, as a preferred embodiment of the present invention, a rotating shaft 33 is inserted into one end of the movable contact piece 32, the movable contact piece 32 rotates along the rotating shaft 33, the rotating shaft 33 is fixedly connected with the housing 1, a spring 34 is arranged below the movable contact piece 32, two ends of the spring 34 respectively abut against the movable contact piece 32 and the housing 1, the self-test shutter 4 is arranged in the groove 40, and the second electromagnet 9 is used for controlling the movement of the self-test shutter 4. In the embodiment of the present invention, the first electromagnet 8 is shown to control the switch assembly 3 to be switched on, when the switch assembly needs to be switched on, the movable end of the first electromagnet 8 is ejected out to drive the movable contact piece 32 to rotate along the rotating shaft 33, and the movable contact piece 32 moves towards the stationary contact piece 31 until the switch assembly is switched on. In the embodiment of the present invention, the first electromagnet 8 is connected to the movable contact piece 32 in an abutting manner, so as to solve the problem of the cooperation of the first electromagnet 8 in the rotation process of the movable contact piece 32, a long hole is arranged above the movable contact piece 32, the end part of the movable end of the first electromagnet 8 is arranged in a spherical shape, and a spherical ejector rod is used in cooperation with the long hole, so that the first electromagnet 8 is prevented from being influenced by the rotation of the movable contact piece 32 in the ejection process. In the embodiment of the present invention, the contact pieces 32 respectively correspond to three phases of the switching switch, in the embodiment, the three contact pieces 32 may be in a linkage manner, one electromagnet 8 acts to drive the three contact pieces 32 to act, or the three first electromagnets 8 respectively act corresponding to the three movable contact pieces 32, in this embodiment, the three first electromagnets 8 respectively correspond to the three movable contact pieces 32, so that the three first electromagnets 8 are in backup with each other, and even if there is a damage, the closing condition of the other two actions is not affected. Has higher reliability. In the aspect of consistency of the actions of the three first electromagnets 8, under the condition that the three electromagnets are used for supplying power at the same time, the consistency influence of the three electromagnets has smaller influence on the implementation of the invention.
As shown in fig. 4, as a preferred embodiment of the present invention, the movable contact piece 32 includes a conductor 35 and a contact shell 36, the conductor 35 is disposed in the contact shell 36, a latch body 37 is disposed on the contact shell 36, a stop pin 38 is disposed on the housing 1, the stop pin 38 is in fit connection with the latch body 37, a third electromagnet 39 is connected to one end of the stop pin 38, and the third electromagnet 39 is used for controlling the movement of the stop pin 38. In the embodiment of the present invention, the conductor 35 is a flexible wire connected between the terminal block 7 and the movable contact member 32. In the embodiment of the invention, the movable contact piece 32 is provided with the lock catch body 37, and after the movable contact piece 32 and the static contact piece 31 are switched on, the lock catch body 37 is blocked by the stop pin 38, so that the operation loss of the switching-on process of the switching switch can be reduced, and the energy-saving effect is achieved. When the brake is opened, the main control board 2 sends out a brake opening command, the control stop pin 38 acts and retracts, the lock body 37 is released, and the movable contact piece 32 realizes the mechanical contact brake opening under the elastic force of the spring 34. In the embodiment of the present invention, the housing 1 is provided with a baffle, an elliptical hole is formed in the baffle, the stop pin 38 is disposed in the elliptical hole, and the stop pin 38 can slide in the elliptical hole. A plug is provided in the vertical direction of the stop pin 38, which plug extends to the outside of the housing, the end of the plug abutting against the end of the stop pin 38, which plug can be used to wave the stop pin 38.
Be equipped with through-hole 42 on the self-checking baffle 4, the size of through-hole 42 equals with first electro-magnet 8's expansion end external diameter, and first electro-magnet 8's expansion end can freely pass through-hole 42, self-checking baffle 4 and second electro-magnet 9's expansion end fixed connection. In the embodiment of the invention, the self-checking baffle 4 is provided with the through hole 42 for passing through the movable end of the first electromagnet 8 during the closing self-checking, and when the self-checking is not required, the self-checking baffle 4 is withdrawn for blocking the first electromagnet 8, so that the movable contact piece 32 is driven to close. In the embodiment of the invention, the through hole 42 is adopted, so that the movable stroke and the size of the self-checking baffle 4 can be reduced, the size of the second electromagnet 9 is reduced, and the practicability is good.
A first position switch 10 is arranged on one side of the first electromagnet 8, and the first position switch 10 is used for detecting the position of the movable end of the first electromagnet 8. In the embodiment of the present invention, the first position switch 10 may be implemented by a micro switch or a travel switch, in the embodiment of the present invention, a shift lever is added on the movable end of the first electromagnet 8 for contacting with the position switch 10, when the first electromagnet 8 acts, the first position switch 10 is turned on and off, and a switch signal is sent to the main control board 2 for determining the action of the first electromagnet 8.
And a second position switch 11 is arranged on one side of the third electromagnet 39, and the second position switch 11 is used for detecting the position of the movable end of the third electromagnet 39. In the embodiment of the present invention, the second position switch 11 may be implemented by a micro switch or a travel switch, and in the embodiment of the present invention, a shift lever is added to the stop pin 38 for contacting with the second position switch 11, so that when the third electromagnet 39 acts, the second position switch 11 is turned on and off, and a switch signal is sent to the main control board 2 for determining the action of the third electromagnet 39.
The static contact piece 31 is provided with a current coil 43 in a penetrating manner, and the current coil 43 is electrically connected with the main control board 2. In the embodiment of the invention, the current coil 43 collects the three-phase current of the switching switch, and sends the data to the main control board 2 in real time, the main control board 2 judges the switching-on or switching-off switch when the voltage or the current crosses zero through digital-to-analog conversion when the switching switch is needed by the main control board 2.
The main control board 2 comprises a power panel and a mainboard, wherein the mainboard comprises a single chip microcomputer unit, a memory unit, a clock unit, a digital-to-analog conversion unit, a digital display unit, an indicator light unit and a key unit. In the embodiment of the invention, the main control board 2 comprises a power supply board and a mainboard, the power supply board provides a working power supply for the device, the mainboard is a control unit of the device and comprises a single chip microcomputer unit, and in the embodiment of the invention, the single chip microcomputer unit adopts a stm32F103 series single chip microcomputer to construct an embedded control platform. The switching-on and switching-off self-checking program is used for realizing switching-on and switching-off of the switching switch and a self-checking program of the switching-on and switching-off.
The remote control module 6 is a bluetooth module or a WiFi module. In the embodiment of the invention, the remote module 6 is used for remotely controlling the switching-on and switching-off operations of the switching switch. In the embodiment of the invention, the remote control module 6 can adopt a Bluetooth module or a WiFi module, or adopt a micropower wireless module, and is used for remotely controlling the switching switch. And a control instruction is generated on the switching switch by using the remote control host, and the control instruction comprises switching-on and switching-off operation and self-checking operation. When using bluetooth module, but staff's cell-phone APP passes through bluetooth module and is connected with the on-off switch, and the staff passes through cell-phone APP can the on-off switch control.
The switching method comprises a switching-on method and a switching-off method; the switching-on method comprises a switching-on self-detection step A and a switching-on step B; the brake separating method comprises a brake separating self-checking step C and a brake separating step D;
the switching-on self-detection step A comprises the following steps:
step a1, triggering a self-check of closing through a closing key on a switching switch;
step a2, at this moment, the fling-cut switch is in a switching-off state, after the main control board 2 receives a switching-on command, a switching-on self-checking program is started, the main control board 2 outputs a switching-on self-checking signal to control the second electromagnet 9 to act, the second electromagnet 9 drives the self-checking baffle 4 to slide along the groove 40 and is used for extending out a through hole 42 on the self-checking baffle 4, the movable end of the first electromagnet 8 can freely pass through the through hole 42, at this moment, the main control board 2 only controls the first electromagnet 8 to extend out, and the first electromagnet 8 cannot jack up the movable contact piece 32, so that the self-checking and non-switching-on effects are achieved;
a3, according to the step a2, after the first electromagnet 8 acts, detecting whether the first electromagnet 8 acts through the first position switch 10, if the first position switch 10 detects that the first electromagnet 8 acts, judging that the closing self-checking is successful, and sending a self-checking result to the main control board 2, if the first electromagnet 8 does not act, judging that the closing self-checking fails, and sending a self-checking failure result to the main control board 2, judging whether a closing program needs to be continued through the main control board 2, and after the self-checking program is completed, recovering the first electromagnet 8 and the self-checking baffle 4 to an initial state; in the embodiment of the invention, when the self-checking of the closing fails, the main control board 2 can send a self-checking failure result to a user through the remote control module 6, and a switching switch is overhauled or replaced by a transport inspection worker.
The switching-on step B comprises the following steps:
step b1, completing the self-checking step A, if the self-checking is successful, opening a closing program,
step b2, the main control board 2 is electrically connected with the fling-cut switch static contact piece 31, real-time voltage on the fling-cut switch static contact piece is collected through a voltage line, and a closing command is sent out when the voltage crosses zero;
step b3, the main control board 2 firstly controls the solid state relay 5 to be conducted, at this time, the movable contact piece 32 and the static contact piece 31 are not switched on, and the conduction is realized only under the action of the solid state relay 5;
step b4, the main control board 2 controls the switch component 3 to be switched on again, the main control board 2 controls the first electromagnet 8 to extend, under the ejection action of the first electromagnet 8, the movable contact piece 32 moves towards the static contact piece 31, and the switching-on action of the mechanical contact is realized;
step b5, after the step b4 is completed, the movable contact piece 32 and the fixed contact piece 31 are successfully switched on, and then the locking body 37 is blocked on the blocking pin 38, and under the action of the blocking pin 38, the movable contact piece 32 and the fixed contact piece 32 are connected together in a locking manner, so that mechanical switching-on maintenance is realized;
b6, after the switch assembly 3 is switched on, the main control board 2 controls the solid-state relay 5 to output disconnection, and the switching-on operation step is completed;
the switching-off self-checking step C comprises the following steps:
step c1, triggering brake-off self-checking through a brake-off key on the fling-cut switch;
step c2, at this moment, the fling-cut switch is in a closing state, after the main control board 2 receives a closing command, the closing self-checking program is started, the main control board 2 outputs a closing self-checking signal to control the first electromagnet 8 to act, the first electromagnet 8 is ejected out to prop against the movable contact piece 32 to prevent the movable contact piece 32 from being opened, and simultaneously, the third electromagnet 39 is controlled to act to drive the stop pin 38 to withdraw and act to release the lock catch body 37, and the movable contact piece 32 is jacked up under the action of the first electromagnet 8, so that the self-checking function is achieved;
step c3, according to the step c2, after the third electromagnet 39 acts, whether the third electromagnet 39 acts is detected through the second position switch 11, if the second position switch 11 detects that the third electromagnet 39 acts, the switching-off self-inspection is judged to be successful, the self-inspection result is sent to the main control board 2, if the third electromagnet 39 does not act, the switching-off self-inspection is judged to be failed, the self-inspection result is sent to the main control board 2, the main control board 2 judges whether the switching-off program needs to be continued, and after the self-inspection program is completed, the first electromagnet 8 and the stop pin 38 are both restored to the initial state; in the embodiment of the invention, when the brake separating self-checking fails, the main control panel 2 can send a self-checking failure result to a user through the remote control module 6, and a transport inspection worker overhauls or replaces the fling-cut switch. In the embodiment of the invention, if the fling-cut switch fails in self-checking, the brake-separating mechanical part of the fling-cut switch is possibly damaged, and a self-checking failure result is sent to a user through the main control panel 2, so that the fling-cut switch is maintained or replaced, or the brake-separating self-checking result is displayed through the fling-cut switch. As a remedy for the damage of the mechanical part of the switching switch brake-off, in the embodiment of the invention, a plug pin is arranged on one side of a stop pin 38, the stop pin 38 is shifted by 41, a release body 37 can be manually and forcibly released, and the manual brake-off is forced, so that the defect that the switching switch cannot be switched off after the self-checking brake-off fails is avoided.
The opening step D comprises the following steps:
step d1, completing the closing self-checking step C, if the opening self-checking is successful, opening the opening program,
step d2, the main control board 2 firstly controls the solid state relay 5 to be conducted, at this time, the movable contact piece 32 and the static contact piece 31 are not switched off, and the solid state relay 5 and the switch component 3 are in a conducting state at the same time;
d3, the main control board 2 controls the switch component 3 to open the brake, the main control board 2 controls the third electromagnet 39 to withdraw, under the action of the third electromagnet 39, the stop pin 38 withdraws to release the lock catch body 37, the movable contact piece 32 moves away from the static contact piece 31 under the action of the elastic force of the spring 34, and the mechanical contact opening action is realized;
and d4, the main control board 2 collects real-time current on the static contact piece of the fling-cut switch through the current coil 43, and when the current crosses the zero point, the main control board 2 controls the solid-state relay 5 to be switched off, so that the opening operation step is completed.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. Remote switch with self-checking function, including casing (1), main control board (2), switch module (3), solid state relay (5), remote control module (6), its characterized in that:
the main control board (2), the switch assembly (3), the solid-state relay (5) and the remote control module (6) are respectively and fixedly arranged in the shell (1);
the switch assembly (3) comprises a static contact piece (31) and a movable contact piece (32), the movable contact piece (32) is connected with the static contact piece (31) in an abutting mode, two ends of the static contact piece (31) and two ends of the movable contact piece (32) are respectively connected with a wiring board (7), and the output end of the solid-state relay (5) is respectively connected with two ends of the movable contact piece (31) and two ends of the movable contact piece (32) in parallel; a first electromagnet (8) is arranged above the movable contact piece (31), and the movable end of the first electromagnet (8) is connected with the movable contact piece (32) in an abutting mode;
a slot (40) is transversely arranged on the movable contact piece (32), a movable self-checking baffle (4) is arranged in the slot (40), one end of the self-checking baffle (4) is connected with a second electromagnet (9), and the second electromagnet (9) is used for controlling the movement of the self-checking baffle (4);
the switch component (3), the solid-state relay (5), the remote control module (6), the first electromagnet (8) and the second electromagnet (9) are electrically connected with the main control board (2) respectively.
2. The remote switch according to claim 1, wherein:
a rotating shaft (33) penetrates through one end of the moving contact piece (32), the moving contact piece (32) rotates along the rotating shaft (33), the rotating shaft (33) is fixedly connected with the shell (1), a spring (34) is arranged below the moving contact piece (32), and two ends of the spring (34) are respectively abutted to the moving contact piece (32) and the shell (1).
3. The remote switch according to claim 2, wherein:
the movable contact piece (32) comprises a conductor (35) and a contact shell (36), the conductor (35) is arranged in the contact shell (36), a lock catch body (37) is arranged on the contact shell (36), a stop pin (38) is arranged on the shell (1), the stop pin (38) is connected with the lock catch body (37) in a matched mode, one end of the stop pin (38) is connected with a third electromagnet (39), and the third electromagnet (39) is used for controlling the stop pin (38) to move.
4. The remote switch according to claim 1, wherein:
be equipped with through-hole (42) on self-checking baffle (4), the size of through-hole (42) equals with the expansion end external diameter of first electro-magnet (8), and the expansion end of first electro-magnet (8) can freely pass through-hole (42).
5. The remote switch according to claim 1, wherein:
first electro-magnet (8) one side is equipped with first position switch (10), first position switch (10) are used for detecting the position of first electro-magnet (8) expansion end.
6. The remote switch according to claim 3, wherein:
and a second position switch (11) is arranged on one side of the third electromagnet (39), and the second position switch (11) is used for detecting the position of the movable end of the third electromagnet (39).
7. The remote switch according to claim 1, wherein:
wear to be equipped with current coil (43) on quiet contact spare (31), current coil (43) and main control board (2) electric connection for detect the electric current on quiet contact spare (31).
8. The remote switch according to claim 1, wherein:
the main control board (2) comprises a power panel and a mainboard, wherein the mainboard comprises a single chip microcomputer unit, a memory unit, a clock unit, a digital-to-analog conversion unit, a digital display unit, an indicator light unit and a key unit.
9. The remote switch according to claim 1, wherein:
the remote control module (6) is a Bluetooth module or a WiFi module.
10. A switching method of a remote switching switch with a self-checking function is characterized in that:
the switching method comprises a switching-on method and a switching-off method; the switching-on method comprises a switching-on self-detection step A and a switching-on step B; the brake separating method comprises a brake separating self-checking step C and a brake separating step D;
the switching-on self-detection step A comprises the following steps:
step a1, triggering a closing self-check through a closing key on a switching switch or a remote control module;
step a2, at this time, the fling-cut switch is in a switching-off state, after the main control board (2) receives a switching-on command, a switching-on self-checking program is started, the main control board (2) outputs a switching-on self-checking signal to control the second electromagnet (9) to act, the second electromagnet (9) drives the self-checking baffle (4) to slide along the slot (40) and is used for controlling the through hole (42) on the self-checking baffle (4) to stretch out, the movable end of the first electromagnet (8) can freely penetrate through the through hole (42), at this time, the main control board (2) only controls the first electromagnet (8) to stretch out, and the first electromagnet (8) cannot jack up the movable contact piece (32) to play a role of self-checking and non-switching-on;
a3, according to the step a2, after the first electromagnet (8) acts, detecting whether the first electromagnet (8) acts through the first position switch (10), if the first position switch (10) detects that the first electromagnet (8) acts, judging that the closing self-checking is successful, and sending a self-checking result to the main control board (2), if the first electromagnet (8) does not act, judging that the closing self-checking fails, and sending a self-checking result to the main control board (2), judging whether a closing program needs to be continued through the main control board (2), and after the self-checking program is finished, recovering the first electromagnet (8) and the self-checking baffle (4) to an initial state;
the switching-on step B comprises the following steps:
step b1, completing the self-checking step A, if the self-checking is successful, opening a closing program,
b2, the main control board (2) sends a closing command when the voltage crosses zero by acquiring real-time voltage on the static contact piece of the fling-cut switch;
step b3, the main control board (2) firstly controls the solid state relay (5) to be conducted, at the moment, the movable contact piece (32) and the static contact piece (31) are not switched on, and the conduction is realized only under the action of the solid state relay (5);
b4, the main control board (2) controls the switch assembly (3) to be switched on, the main control board (2) controls the first electromagnet (8) to extend out, under the ejection action of the first electromagnet (8), the movable contact piece (32) moves towards the static contact piece (31), and the switching-on action of the mechanical contact is realized;
b5, after the step b4 is completed, the movable contact piece (32) and the static contact piece (31) are successfully switched on, the locking body (37) is blocked on the blocking pin (38), and under the action of the blocking pin (38), the movable contact piece (32) and the static contact piece (32) are connected together in a locking manner, so that the switching-on maintenance of the mechanical contact is realized;
b6, after the switch assembly (3) is switched on, the main control board (2) controls the output of the solid-state relay (5) to be disconnected, and the switching-on operation step is completed;
the switching-off self-checking step C comprises the following steps:
step c1, triggering brake-separating self-checking through a brake-separating key on the fling-cut switch or a remote control module;
step c2, at the moment, the fling-cut switch is in a switching-on state, after the main control board (2) receives a switching-off command, a switching-off self-checking program is started, the main control board (2) outputs a switching-off self-checking signal to control the first electromagnet (8) to act, the first electromagnet (8) is ejected out to prop against the movable contact piece (32) to prevent the movable contact piece (32) from being switched off, and meanwhile, the third electromagnet (39) is controlled to act to drive the blocking pin (38) to withdraw to act for releasing the lock catch body (37), and the movable contact piece (32) is jacked up under the action of the first electromagnet (8), so that the function of self-checking and non-switching-off is achieved;
step c3, according to the step c2, after the third electromagnet (39) acts, whether the third electromagnet (39) acts is detected through the second position switch (11), if the second position switch (11) detects that the third electromagnet (39) acts, the switching-off self-inspection is judged to be successful, a self-inspection result is sent to the main control board (2), if the third electromagnet (39) does not act, the switching-off self-inspection is judged to be failed, a self-inspection failure result is sent to the main control board (2), whether the switching-off procedure needs to be continued is judged by the main control board (2), and after the self-inspection procedure is completed, the first electromagnet (8) and the stop pin (38) are both restored to the initial state;
the switching-off step D comprises the following steps:
step d1, completing the switching-on self-checking step C, if the switching-off self-checking is successful, starting a switching-off program,
d2, the main control board (2) firstly controls the solid state relay (5) to be conducted, at the moment, the movable contact piece (32) and the static contact piece (31) are not switched off, and the solid state relay (5) and the switch component (3) are simultaneously in a conducting state;
d3, the main control board (2) controls the switch component (3) to be switched off, the main control board (2) controls the third electromagnet (39) to be pulled back, the stop pin (38) is pulled back under the action of the third electromagnet (39) to release the lock catch body (37), the movable contact piece (32) moves away from the static contact piece (31) under the action of the elastic force of the spring (34), and the mechanical contact switching-off action is realized;
and d4, the main control board (2) collects real-time current on the static contact piece of the fling-cut switch through the current coil (43), and when the current crosses the zero point, the main control board (2) controls the solid-state relay (5) to be switched off, so that the switching-off operation step is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211165032.8A CN115602462A (en) | 2022-09-23 | 2022-09-23 | Remote switching switch with self-checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211165032.8A CN115602462A (en) | 2022-09-23 | 2022-09-23 | Remote switching switch with self-checking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115602462A true CN115602462A (en) | 2023-01-13 |
Family
ID=84844525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211165032.8A Withdrawn CN115602462A (en) | 2022-09-23 | 2022-09-23 | Remote switching switch with self-checking function |
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| Country | Link |
|---|---|
| CN (1) | CN115602462A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117352350A (en) * | 2023-12-04 | 2024-01-05 | 深圳市迈拓诚悦科技有限公司 | Combined switch for network communication equipment |
-
2022
- 2022-09-23 CN CN202211165032.8A patent/CN115602462A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117352350A (en) * | 2023-12-04 | 2024-01-05 | 深圳市迈拓诚悦科技有限公司 | Combined switch for network communication equipment |
| CN117352350B (en) * | 2023-12-04 | 2024-02-02 | 深圳市迈拓诚悦科技有限公司 | Combined switch for network communication equipment |
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Application publication date: 20230113 |