CN114582643A - Intelligent automatic change-over switch - Google Patents
Intelligent automatic change-over switch Download PDFInfo
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- CN114582643A CN114582643A CN202210217156.XA CN202210217156A CN114582643A CN 114582643 A CN114582643 A CN 114582643A CN 202210217156 A CN202210217156 A CN 202210217156A CN 114582643 A CN114582643 A CN 114582643A
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- circuit breaker
- common
- breaker
- standby
- driving
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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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The application relates to an intelligent automatic change-over switch, which comprises a common-end circuit breaker, a switch controller and a standby-end circuit breaker, wherein the common-end circuit breaker and the switch controller are sequentially connected with a common power supply, and the standby-end circuit breaker is connected with a standby power supply; the switch controller comprises a controller circuit board, a mechanical interlocking device and a controller shell, wherein the mechanical interlocking device is used for limiting the circuit breakers at the common end and the standby end to be switched on simultaneously; the controller circuit board is provided with two circuit breaker signal interfaces which are respectively connected with a common-end circuit breaker and a standby-end circuit breaker; the mechanical interlocking device is respectively connected with the common-end circuit breaker and the standby-end circuit breaker. This application can effectively avoid appearing two circuit breakers because of the phenomenon that the maloperation was closed a floodgate simultaneously, improves dual supply power consumption security, reaches the effect that effectively improves dual supply switching efficiency and improve power consumption security.
Description
Technical Field
The application relates to the field of automatic change-over switches, in particular to an intelligent automatic change-over switch.
Background
The double-power automatic transfer switch is automatically connected to a standby power supply through the double-power transfer switch when power is suddenly cut off, so that the operation of people is not stopped and can still continue to operate. The dual-power automatic transfer switch is used for one path of standby power supply in a simple way, and when common power fails or is powered off suddenly, the standby power supply can still normally operate by automatically switching into the standby power supply (the standby power supply can also be powered by a generator under a small load). The UPS for the bank is also used for the most common elevators, fire control and monitoring, but the spare battery of the UPS is used for the bank.
Chinese patent publication No. CN113161173A discloses a dual power supply automatic transfer switch, which includes a contact assembly, a switching assembly, a common power supply microswitch, a standby power supply microswitch, a logic interlock circuit and a controller; the switching assembly is used for controlling the on and off of the common power supply microswitch or the standby power supply microswitch in a transmission mode when a power supply is switched; the logic interlocking circuit comprises a common power supply switching-on control circuit and a standby power supply switching-on control circuit; the switching-on control circuit of the common power supply and the switching-on control circuit of the standby power supply are respectively electrically connected with the controller and the switching assembly and are used for controlling the switching assembly to be switched to another normal power supply when one power supply fails; and connecting the standby power supply microswitch in series in the common power supply switch-on control circuit, and connecting the common power supply microswitch in series in the standby power supply switch-on control circuit. According to the application, the two micro switches are arranged at the adjacent positions of the switching assembly, and the logic interlocking circuit is combined to protect the normal operation of the switching assembly. However, the common power supply microswitch and the standby power supply microswitch are interlocked only by adopting the logic interlocking circuit, so that the phenomenon that the double power supplies are switched on simultaneously due to misoperation easily occurs, and potential safety hazards of power utilization exist.
Aiming at the related technologies, the inventor thinks that the existing dual-power automatic transfer switch only adopts a logic interlocking circuit to interlock a common power supply microswitch and a standby power supply microswitch, so that the phenomenon of simultaneous switching-on of the dual power supplies due to misoperation easily occurs, and potential safety hazards of power utilization exist.
Disclosure of Invention
In order to improve current dual supply automatic transfer switch and only adopt logic interlock circuit to carry out the interlocking to power microswitch and stand-by power supply microswitch commonly used, appear easily because the phenomenon that the maloperation leads to dual supply to close a floodgate simultaneously, have the problem of power consumption potential safety hazard, this application provides an intelligent automatic transfer switch.
In a first aspect, the present application provides an intelligent automatic transfer switch, which adopts the following technical scheme:
an intelligent automatic transfer switch comprises a common-end circuit breaker, a switch controller and a standby-end circuit breaker, wherein the common-end circuit breaker and the switch controller are sequentially arranged and used for being connected with a common power supply, and the standby-end circuit breaker is connected with a standby power supply; the switch controller comprises a controller circuit board, a mechanical interlocking device and a controller shell, wherein the mechanical interlocking device is used for limiting the circuit breakers at the common end and the standby end to be switched on simultaneously; the controller circuit board is provided with two circuit breaker signal interfaces which are respectively connected with a common-end circuit breaker and a standby-end circuit breaker; the mechanical interlocking device is respectively connected with the common-end circuit breaker and the standby-end circuit breaker.
By adopting the technical scheme, the automatic switching between the common power supply and the standby power supply is realized through the arrangement of the switch controller, so that the stable operation of the electric appliance is ensured, and the effect of effectively improving the stability of the electric appliance is achieved; through mechanical interlocking device's setting, after common end circuit breaker or reserve end circuit breaker combined floodgate, mechanical interlocking device locks another circuit breaker and makes it unable combined floodgate, avoids appearing two circuit breakers because of the phenomenon of maloperation combined floodgate simultaneously, improves dual supply power consumption security, reaches the effect that effectively improves dual supply switching efficiency and improve power consumption security.
Preferably, common end circuit breaker and reserve end circuit breaker structure are the same, common end circuit breaker and reserve end circuit breaker all include circuit breaker shell, three-phase electricity wiring end, three-phase electricity leading-out terminal, be used for controlling three-phase electricity wiring end and three-phase electricity leading-out terminal break-make's combined floodgate subassembly, traction lever and tripping assembly, three-phase electricity wiring end and three-phase electricity leading-out terminal all are connected with combined floodgate subassembly, combined floodgate subassembly and tripping assembly all with traction lever connection.
Through adopting above-mentioned technical scheme, through the setting of closing a floodgate subassembly, the break-make of the effective control circuit breaker of being convenient for, through the setting of traction lever and dropout subassembly, carry out spacing and control to closing a floodgate subassembly simultaneously, be convenient for in time reset closing a floodgate subassembly when taking place unusual power consumption situation, avoid the emergence of unexpected power consumption accident, reach the effect of effectively improving the power consumption security.
Preferably, the switching-on assembly comprises a disconnecting link rotating shaft, an operating mechanism for driving the disconnecting link rotating shaft to rotate and three disconnecting link tool holders, three disconnecting link blades are sequentially arranged on the disconnecting link rotating shaft along the length direction of the disconnecting link rotating shaft, the three disconnecting link blades are connected with a three-phase power terminal, the three disconnecting link tool holders are connected with a three-phase power outlet terminal, movable contact blades are arranged at the end parts of the three disconnecting link blades, static contact blades are arranged on the three disconnecting link tool holders, and the three-phase power terminal is communicated with the three-phase power outlet terminal when the three disconnecting link blades are closed with the disconnecting link tool holders; arc extinguishing components are arranged on the three knife switch knife rests.
By adopting the technical scheme, through the arrangement of the closing assembly, when the breaker needs to be closed to enable three phases to be electrically communicated, the operating mechanism drives the disconnecting link rotating shaft to rotate, so that the three disconnecting links are respectively inserted into the three disconnecting link tool holders, and the movable contact pieces on the disconnecting links are abutted to the static contact pieces on the disconnecting link tool holders to enable a circuit to be conducted; in addition, due to the arrangement of the arc extinguishing component, arc extinguishing dredging can be performed on the electric arc which is caused by poor contact or other unexpected factors when the movable contact piece and the static contact piece are in contact, and the power utilization safety is further effectively improved.
Preferably, the mechanical interlocking device comprises a common end turntable, a spare end turntable and a four-link assembly, wherein the common end turntable and the spare end turntable are coaxially and rotatably arranged on the controller shell; a common end limiting rod used for limiting the closing of the common end breaker is arranged on one side, close to the common end breaker, of the common end turntable, and a standby end limiting rod used for limiting the closing of the standby end breaker is arranged on one side, close to the standby end breaker, of the standby end turntable; first arc-shaped waist-shaped holes are formed in the controller shell, the breaker shell of the common-end breaker and the breaker shell of the standby-end breaker along the horizontal direction, one end of the common-end limiting rod penetrates through the first arc-shaped waist-shaped holes to extend into the common-end breaker and be located on one side of a traction rod in the common-end breaker, and one end of the standby-end limiting rod penetrates through the first arc-shaped waist-shaped holes to extend into the standby-end breaker and be located on one side of the traction rod in the standby-end breaker; the four-connecting-rod assembly comprises a first driving connecting rod, a second driving connecting rod, a third driving connecting rod and a fourth driving connecting rod, the first driving connecting rod and the second driving connecting rod are coaxially and rotatably arranged on the inner side wall of the controller shell, and the rotating points of the first driving connecting rod and the second driving connecting rod do not form a long arm and a short arm at the center points of the first driving connecting rod and the second driving connecting rod; the rotating rods are arranged on one sides of the long arms of the first driving connecting rod and the second driving rod, which are arranged in a back-to-back mode, second arc-shaped waist-shaped holes are formed in the controller shell, the breaker shell of the common-end breaker and the breaker shell of the standby-end breaker along the vertical direction, the two rotating rods respectively extend into the common-end breaker and the standby-end breaker through the second arc-shaped waist-shaped holes, and the two rotating rods are respectively connected with a rotating shaft of the common-end breaker and a knife switch rotating shaft of the standby-end breaker; one end of the first driving connecting rod short arm is rotatably connected with one end of a third driving connecting rod, and the other end of the third driving connecting rod is rotatably connected with the bottom of the outer side wall of one side, close to the common end turntable, of the standby end turntable; the long arm of the second driving connecting rod is rotatably connected with one end of a fourth driving connecting rod, and the other end of the fourth driving connecting rod is rotatably connected with the top of the outer side wall of one side, close to the spare end turntable, of the common end turntable; and the third driving connecting rod and the fourth driving connecting rod are arranged in a Z shape.
By adopting the technical scheme, through the arrangement of the mechanical interlocking device, when the circuit breaker at the common end is switched on, the knife switch rotating shaft drives the knife switch blade to be switched into the knife switch blade holder and simultaneously drives the rotating rod of the first driving connecting rod to move downwards so as to drive the first driving connecting rod to rotate, force the third driving connecting rod to operate in a driven manner to drive the spare end turntable to rotate, further drive the spare end limiting rod to press the traction rod of the spare end circuit breaker for limiting, and ensure that the switching-on assembly of the spare end circuit breaker cannot be switched on; the phenomenon that two circuit breakers are switched on simultaneously due to misoperation is avoided, the power utilization safety of the double power supplies is improved, and the effect of effectively improving the switching efficiency of the double power supplies and improving the power utilization safety is achieved; when the common-end power supply fails, the control panel detects that the common-end power supply is powered off and the standby end is powered on, the common-end circuit breaker is controlled to be switched off, and the common-end circuit breaker and the standby end circuit breaker are both in a switching-off state; the operating device who controls reserve end circuit breaker again closes a floodgate to reserve end circuit breaker, the switch pivot of reserve end circuit breaker drives second drive connecting rod through the bull stick and rotates, and then drive fourth drive connecting rod and remove, make end carousel commonly used rotate, and then drive end limiting rod commonly used and push down spacing with the traction lever of end circuit breaker commonly used, make the unable combined floodgate of end circuit breaker commonly used, avoid appearing two circuit breakers because of the phenomenon of maloperation combined floodgate simultaneously, improve dual supply power consumption security, reach the effect that effectively improves dual supply switching efficiency and improve power consumption security.
Preferably, the common end turntable and the standby end turntable both comprise a first turntable body and a second turntable body, the first turntable body and the second turntable body are mutually connected in a rotating mode, a first clamping block is arranged on the first turntable body, a second clamping block and a third clamping block are arranged on the second turntable body, the first clamping block is located between the second clamping block and the third clamping block, a first torsion spring and a second torsion spring used for limiting the mutual rotation of the first turntable body and the second turntable body are coaxially arranged between the first turntable body and the second turntable body, one end of the first torsion spring is abutted to the second clamping block, and the other end of the first torsion spring is abutted to the first clamping block; one end of the second torsion spring is abutted to the third clamping block, and the other end of the second torsion spring is abutted to the first clamping block.
Through adopting above-mentioned technical scheme, through first disk body, the second disk body, the setting of first torsional spring and second torsional spring, first torsional spring and second torsional spring provide buffering and cooperation redundancy for the carousel, make end carousel commonly used and reserve end carousel can stably drive end stop lever commonly used and reserve end stop lever when rotating and stabilize the traction lever spacing, reduce the wearing and tearing to end stop lever commonly used and reserve end stop lever, effectively promoted mechanical interlocking device's life.
Preferably, the second disk body is provided with a plurality of buckles along its circumference, the cardboard of a plurality of confession buckle joints is seted up along its circumference to first disk body, and is a plurality of all set up the breach that supplies the buckle to break away from on the cardboard.
Through adopting above-mentioned technical scheme, through the setting of a plurality of buckles and a plurality of cardboard, the lock is stabilized to first disk body and the second disk body of being convenient for, has effectively improved the mechanism stability of end carousel commonly used and reserve end carousel, reaches the effect that effectively improves mechanical interlocking device life.
Preferably, the operating mechanism comprises a bracket, a shifting sheet part and a driving part, wherein the shifting sheet part is rotatably arranged on the bracket; the bottom of the shifting piece part is connected with a power-assisted spring, and one end of the power-assisted spring, which is far away from the shifting piece assembly, is connected with the driving piece; one end of the driving piece is rotatably connected with the bracket, and the other end of the driving piece is rotatably connected with the knife switch rotating shaft.
By adopting the technical scheme, the power-assisted spring and the shifting piece component are arranged, so that the driving of the rotating shaft of the disconnecting link is facilitated, the switching-on process of the switching-on assembly is more labor-saving and convenient, and the power supply switching efficiency and the stability of the automatic transfer switch are effectively improved.
Preferably, the common-end circuit breaker and the standby-end circuit breaker are respectively provided with an electric driving assembly for shifting the shifting piece part, the electric driving assembly comprises a bottom plate, a support plate, a shifting piece gear and two driving motors, and the two driving motors are connected with the switch controller; the bottom plate and the support plate are both fixedly connected with the shell of the circuit breaker, the two driving motors are arranged on the bottom plate, the output shafts of the two driving motors are arranged in the vertical direction, the support plate is arranged above the two driving motors, and the shifting piece gear is rotationally arranged on the support plate; the output shafts of the two driving motors penetrate through the support plate and are connected with driving gears, the two driving gears are meshed with the shifting piece gear, and the shifting piece clamp used for clamping the shifting piece component is arranged at one end, far away from the two driving gears, of the shifting piece gear.
Through adopting above-mentioned technical scheme, through the setting of electric drive subassembly, the controller drives plectrum gear revolve through controlling two motors syntropy rotations, stirs the plectrum part through the plectrum clamp on the plectrum gear, accomplishes closing a floodgate or the separating brake operation of combined floodgate subassembly, realizes the effect of intelligent automatic switching power.
Preferably, all be equipped with the monitoring devices who is used for monitoring three-phase voltage and three-phase current on the end circuit breaker of commonly using and the reserve end circuit breaker, two monitoring devices all is connected with the switch controller.
Through adopting above-mentioned technical scheme, through monitoring devices's setting, the voltage and current data of the power that is using of real-time supervision of being convenient for to when data anomaly appears, in time report to the police and power automatic switch-over, ensure to use electrical equipment can stabilize the power consumption operation, reach the effect that effectively improves the power consumption security.
Preferably, an external signal interface is arranged on the controller circuit board, and the switch controller is in communication connection with a preset network holder through the external signal interface.
Through adopting above-mentioned technical scheme, through the setting of external signal interface, the current and voltage data transmission will be gathered to the switch controller of being convenient for to network cloud platform, and the maintainer of being convenient for looks over, and the maintainer also can be long-range to switch controller send instruction simultaneously, realizes remote control and long-range modification parameter, reaches the effect that effectively improves intelligent automatic transfer switch's convenience practicality.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the automatic switching between the common power supply and the standby power supply is realized through the arrangement of the switch controller, so that the stable operation of the electric appliance is ensured, and the effect of effectively improving the stability of power utilization is achieved; through the arrangement of the mechanical interlocking device, after the circuit breaker at the common end or the circuit breaker at the standby end is switched on, the mechanical interlocking device locks the other circuit breaker to ensure that the other circuit breaker cannot be switched on, so that the phenomenon that two circuit breakers are switched on simultaneously due to misoperation is avoided, the power utilization safety of double power supplies is improved, and the effects of effectively improving the switching efficiency of the double power supplies and improving the power utilization safety are achieved;
2. through the arrangement of the mechanical interlocking device, when the circuit breaker at the common end is switched on, the knife switch rotating shaft drives the knife switch blade to be switched into the knife switch blade holder and simultaneously drives the rotating rod of the first driving connecting rod to move downwards, so that the first driving connecting rod is driven to rotate, the third driving connecting rod is forced to operate in a driven mode to drive the spare end rotating disk to rotate, the spare end limiting rod is driven to press the traction rod of the circuit breaker at the spare end for limiting, and the switching-on assembly of the circuit breaker at the spare end can not be switched on; the phenomenon that two circuit breakers are switched on simultaneously due to misoperation is avoided, the power utilization safety of the double power supplies is improved, and the effect of effectively improving the switching efficiency of the double power supplies and improving the power utilization safety is achieved; when the common-end power supply fails, the control panel detects that the common-end power supply is powered off and the standby end is powered on, the common-end circuit breaker is controlled to be switched off, and the common-end circuit breaker and the standby end circuit breaker are both in a switching-off state; then an operating mechanism of the standby-end circuit breaker is controlled to switch on the standby-end circuit breaker, a knife switch rotating shaft of the standby-end circuit breaker drives a second driving connecting rod to rotate through a rotating rod, and further drives a fourth driving connecting rod to move, so that a common-end turntable rotates, and further drives a common-end limiting rod to press a traction rod of the common-end circuit breaker to limit, so that the common-end circuit breaker cannot switch on, the phenomenon that two circuit breakers are switched on simultaneously due to misoperation is avoided, the power utilization safety of double power supplies is improved, and the effect of effectively improving the switching efficiency of the double power supplies and improving the power utilization safety is achieved;
3. through the setting of first disk body, second disk body, first torsional spring and second torsional spring provide buffering and cooperation redundancy for the carousel, make end carousel commonly used and reserve end carousel can stably drive end spacing pole commonly used and reserve end spacing pole when rotating and stabilize the spacing to the traction lever, reduce the wearing and tearing to end spacing pole commonly used and reserve end spacing pole, effectively promoted mechanical interlock's life.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an intelligent automatic transfer switch in the embodiment of the present application;
fig. 2 is a schematic structural diagram of a switch controller in an embodiment of the present application;
FIG. 3 is an enlarged view of a portion of the mechanical interlock device of the present embodiment;
FIG. 4 is an exploded view of a mechanical interlock device according to an embodiment of the present application;
FIG. 5 is a schematic diagram of the internal structure of the intelligent automatic transfer switch in the embodiment of the present application;
fig. 6 is a schematic structural diagram of a closing assembly in an embodiment of the present application;
FIG. 7 is a schematic view of the position structure of the knife blade and knife holder, the rotating rod and the rotating shaft of the knife, and the limiting rod and the pulling rod of the common end in the embodiment of the present application;
FIG. 8 is a schematic structural view of an operating mechanism in the embodiment of the present application;
fig. 9 is a schematic structural diagram of an electric drive assembly in an embodiment of the present application.
Description of reference numerals: 1. a common-end circuit breaker; 11. an electric drive assembly; 111. a base plate; 112. a support plate; 113. a plectrum gear; 114. a drive motor; 115. a film pulling clip; 116. a drive gear; 12. a monitoring device; 2. a switch controller; 21. a controller circuit board; 211. a circuit breaker signal interface; 212. an external signal interface; 22. a mechanical interlock; 23. a controller housing; 231. a first arcuate kidney shaped aperture; 232. a second arc kidney-shaped hole; 24. a common end turntable; 241. a common end stop bar; 25. a spare end turntable; 251. a standby end limit rod; 26. a four-bar linkage assembly; 261. a first drive link; 262. a second drive link; 263. a third drive link; 264. a fourth drive link; 265. a rotating rod; 27. a first tray body; 271. a first clamping block; 272. a first torsion spring; 273. a second torsion spring; 274. clamping a plate; 275. a notch; 28. a second tray body; 281. a second fixture block; 282. a third fixture block; 283. buckling; 3. a standby-side circuit breaker; 4. a circuit breaker housing; 5. a three-phase electric wiring terminal; 6. a three-phase electricity outlet end; 7. a closing assembly; 71. a knife switch rotating shaft; 711. three knife switch blades; 712. a movable contact piece; 72. an operating mechanism; 721. a support; 722. a paddle member; 723. a drive member; 724. a power-assisted spring; 73. a knife switch knife holder; 731. a static contact sheet; 732. an arc extinguishing member; 8. a draw bar; 9. a trip assembly.
Detailed Description
The present application is described in further detail below with reference to figures 1-9. The embodiment of the application discloses intelligent automatic change-over switch. Referring to fig. 1-2, an intelligent automatic transfer switch includes a common-end breaker 1 for connecting with a common power supply, a switch controller 2, and a backup-end breaker 3 for connecting with a backup power supply, which are sequentially arranged. And the common-end circuit breaker 1 and the standby-end circuit breaker 3 are both connected with the switch controller 2. The switch controller 2 includes a controller circuit board 21, a mechanical interlock device 22 for limiting simultaneous closing of the normal-side circuit breaker 1 and the standby-side circuit breaker 3, and a controller housing 23 covering the controller circuit board 21. The controller circuit board 21 is provided with two circuit breaker signal interfaces 211, and the two circuit breaker signal interfaces 211 are respectively connected with the common-end circuit breaker 1 and the standby-end circuit breaker 3. The mechanical interlock device 22 is connected to the normal-side breaker 1 and the standby-side breaker 3, respectively. The automatic switch-over of power supply commonly used and stand-by power supply is realized through setting up of switch controller 2, ensures to use electrical apparatus can the steady operation, reaches the effect that effectively improves the power consumption stability. Through mechanical interlock 22's setting, after end circuit breaker 1 or reserve end circuit breaker 3 combined floodgate commonly used, mechanical interlock 22 locks another circuit breaker and makes it unable combined floodgate, avoids appearing two circuit breakers because of the phenomenon that the maloperation was combined floodgate simultaneously, improves dual supply power consumption security, reaches the effect that effectively improves dual supply switching efficiency and improve power consumption security.
Referring to fig. 3-4, mechanical interlock 22 includes a common end disk 24, a spare end disk 25, and a four-bar linkage assembly 26, with common end disk 24 and spare end disk 25 being coaxially rotatably disposed on controller housing 23. One side of the common end turntable 24 close to the common end breaker 1 is provided with a common end limiting rod 241 for limiting the closing of the common end breaker 1, and one side of the standby end turntable 25 close to the standby end breaker 3 is provided with a standby end limiting rod 251 for limiting the closing of the standby end breaker 3. Controller shell 23, all be provided with first arc waist type hole 231 along the horizontal direction on the circuit breaker shell 4 of end circuit breaker 1 commonly used and the circuit breaker shell 4 of reserve end circuit breaker 3, end limiting rod 241 one end commonly used passes first arc waist type hole 231 and extends to and be located one side of end circuit breaker 1 interior traction lever 8 commonly used in and, reserve end limiting rod 251 one end passes first arc waist type hole 231 and extends to reserve end circuit breaker 3 in and be located one side of reserve end circuit breaker 3 interior traction lever 8.
Referring to fig. 3 to 4, the four-link assembly 26 includes a first drive link 261, a second drive link 262, a third drive link 263, and a fourth drive link 264, the first drive link 261 and the second drive link 262 are coaxially rotatably disposed on an inner sidewall of the controller case 23, and the rotation points of the first drive link 261 and the second drive link 262 do not form a long arm and a short arm at their center points. The long arm one end of first drive link 261 and second actuating lever 262 is the one side that sets up dorsad and all is provided with bull stick 265, controller shell 23, all be provided with second arc waist type hole 232 along vertical direction on circuit breaker shell 4 of end circuit breaker 1 commonly used and the circuit breaker shell 4 of reserve end circuit breaker 3, two bull sticks 265 extend to end circuit breaker 1 commonly used and reserve end circuit breaker 3 in through second arc waist type hole 232 respectively, two bull sticks 265 are connected with the pivot of end circuit breaker 1 commonly used and the knife brake pivot 71 of reserve end circuit breaker 3 respectively. One end of the short arm of the first driving link 261 is rotatably connected to one end of the third driving link 263, and the other end of the third driving link 263 is rotatably connected to the bottom of the outer sidewall of the spare-end turntable 25 near the common-end turntable 24. The long arm of the second driving connecting rod 262 is rotatably connected with one end of a fourth driving connecting rod 264, and the other end of the fourth driving connecting rod 264 is rotatably connected with the top of the outer side wall of one side, close to the spare end rotary disc 25, of the common end rotary disc 24; the third drive link 263 and the fourth drive link 264 are each disposed in a zigzag shape. Through the arrangement of the mechanical interlocking device 22, when the circuit breaker 1 at the normal end is switched on, the knife switch rotating shaft 71 drives the knife switch blade to be switched into the knife switch knife holder 73, and simultaneously drives the rotating rod 265 of the first driving connecting rod 261 to move downwards, so as to drive the first driving connecting rod 261 to rotate, so that the third driving connecting rod 263 is forced to operate from the driven state to drive the standby-end rotating disc 25 to rotate, and further drive the standby-end limiting rod 251 to press the traction rod 8 of the standby-end circuit breaker 3 for limiting, so that the switching-on assembly 7 of the standby-end circuit breaker 3 cannot be switched on. The phenomenon that two circuit breakers are switched on simultaneously due to misoperation is avoided, the power utilization safety of the double power supplies is improved, and the effect of effectively improving the switching efficiency of the double power supplies and improving the power utilization safety is achieved. When the common-end power supply fails, the control panel detects that the common-end power supply is powered off and the standby end is powered on, the common-end circuit breaker 1 is controlled to be switched off, and the common-end circuit breaker 1 and the standby end circuit breaker 3 are both in a switching-off state. The operating mechanism 72 of the standby-end circuit breaker 3 is controlled to switch on the standby-end circuit breaker 3, the knife switch rotating shaft 71 of the standby-end circuit breaker 3 drives the second driving connecting rod 262 to rotate through the rotating rod 265, and then the fourth driving connecting rod 264 is driven to move, so that the common-use end turntable 24 rotates, and then the common-use end limiting rod 241 is driven to press the traction rod 8 of the common-use end circuit breaker 1 for limiting, so that the common-use end circuit breaker 1 cannot switch on, the phenomenon that two circuit breakers are switched on simultaneously due to misoperation is avoided, the electrical safety of double power supplies is improved, and the effect of effectively improving the switching efficiency of the double power supplies and improving the electrical safety is achieved.
Referring to fig. 4, the regular end disc 24 and the spare end disc 25 each include a first disc 27 and a second disc 28, and the first disc 27 and the second disc 28 are rotatably connected to each other. The first tray body 27 is provided with a first clamping block 271, the second tray body 28 is provided with a second clamping block 281 and a third clamping block 282, and the first clamping block 271 is located between the second clamping block 281 and the third clamping block 282. A first torsion spring 272 and a second torsion spring 273 for restricting mutual rotation thereof are coaxially provided between the first disc 27 and the second disc 28, one end of the first torsion spring 272 abuts against the second latch 281, and the other end abuts against the first latch 271. One end of the second torsion spring 273 abuts against the third stopper 282, and the other end abuts against the first stopper 271. Through the arrangement of the first disc body 27, the second disc body 28, the first torsion spring 272 and the second torsion spring 273 provide buffering and matching redundancy for the rotary disc, so that the common end rotary disc 24 and the standby end rotary disc 25 can stably drive the common end limiting rod 241 and the standby end limiting rod 251 to stably limit the traction rod 8 when rotating, the abrasion to the common end limiting rod 241 and the standby end limiting rod 251 is reduced, and the service life of the mechanical interlocking device 22 is effectively prolonged.
Referring to fig. 4, the second tray 28 is provided with a plurality of buckles 283 along the circumferential direction thereof, the first tray 27 is provided with a plurality of clamping plates 274 along the circumferential direction thereof for clamping the buckles 283, and the plurality of clamping plates 274 are provided with notches 275 for disengaging the buckles 283. Through the arrangement of the plurality of buckles 283 and the plurality of clamping plates 274, the first tray body 27 and the second tray body 28 can be stably buckled, the mechanism stability of the common end rotating disc 24 and the standby end rotating disc 25 is effectively improved, and the effect of effectively prolonging the service life of the mechanical interlocking device 22 is achieved.
Referring to fig. 5 and 6, the normal-side circuit breaker 1 and the standby-side circuit breaker 3 are identical in structure. The common-end circuit breaker 1 and the standby-end circuit breaker 3 respectively comprise a circuit breaker shell 4, a three-phase electric wiring end 5, a three-phase electric outgoing line end 6, a closing assembly 7 for controlling the three-phase electric wiring end 5 and the three-phase electric outgoing line end 6 to be connected and disconnected, a traction rod 8 and a tripping assembly 9. The three-phase electric wiring end 5 and the three-phase electric wire outlet end 6 are both connected with the closing assembly 7, and the closing assembly 7 and the tripping assembly 9 are both connected with the traction rod 8. Through the setting of closing assembly 7, the effective control break-make of circuit breaker is convenient for. Meanwhile, the closing component 7 is limited and controlled through the arrangement of the traction rod 8 and the tripping component 9, so that the closing component 7 can be reset in time when abnormal power utilization occurs, accidents caused by power utilization accidents are avoided, and the effect of effectively improving power utilization safety is achieved.
Referring to fig. 5 to 6, the closing assembly 7 includes a knife blade rotating shaft 71, an operating mechanism 72 for driving the knife blade rotating shaft 71 to rotate, and three knife blade holders 73. The knife switch rotating shaft 71 is sequentially provided with three knife switch blades 711 along the length direction, the three knife switch blades 711 are connected with the three-phase power terminal 5, and the three knife switch blade holders 73 are connected with the three-phase power outlet terminal 6. The movable contact 712 is arranged at the end of each of the three knife switch blades 711, the static contact 731 is arranged on each of the three knife switch blade holders 73, and the three-phase electric terminal 5 is communicated with the three-phase electric outlet terminal 6 when the three knife switch blades 711 and the knife switch blade 12 holders 73 are closed. Arc extinguishing members 732 are provided on all three knife holder 73. Through the arrangement of the closing assembly 7, when the breaker needs to be closed to enable three phases to be electrically communicated, the operating mechanism 72 drives the knife switch rotating shaft 71 to rotate, so that the three knife switch blades 711 are respectively inserted into the three knife switch tool holders 73, and the movable contact blade 712 on the knife switch blade is abutted to the static contact blade 731 on the knife switch tool holder 73 to enable a circuit to be conducted; in addition, due to the arrangement of the arc extinguishing component 732, arc extinguishing dispersion can be performed on the arc generated by poor contact or other unexpected factors when the movable contact piece 712 and the static contact piece 731 are in contact, and the power utilization safety is further effectively improved.
Referring to fig. 7-8, the operating mechanism 72 includes a bracket 721, a paddle member 722 rotatably disposed on the bracket 721, and a driving member 723; the bottom of the paddle member 722 is connected with a power spring 724, and one end of the power spring 724, which is far away from the paddle member, is connected with a driving member 723; one end of the driving member 723 is rotatably connected to the support 721, and the other end is rotatably connected to the knife switch shaft 71. Through the arrangement of the power-assisted spring 724 and the shifting piece part 722, the driving of the knife switch rotating shaft 71 is facilitated, so that the switching-on process of the switching-on assembly 7 is more labor-saving and convenient, and the power supply switching efficiency and stability of the automatic transfer switch are effectively improved.
Referring to fig. 9, the electric driving assembly 11 for shifting the blade member 722 is disposed on each of the normal-end circuit breaker 1 and the standby-end circuit breaker 3, the electric driving assembly 11 includes a bottom plate 111, a support plate 112, a blade gear 113 and two driving motors 114, and the two driving motors 114 are connected to the switch controller 2. Bottom plate 111 and branch board 112 all with circuit breaker housing 4 fixed connection, two driving motor 114 install on bottom plate 111 and the output shaft sets up along vertical direction, and branch board 112 sets up above two driving motor 114, and plectrum gear 113 rotates and sets up on branch board 112. Output shafts of the two driving motors 114 penetrate through the support plate 112 to be connected with driving gears 116, the two driving gears 116 are meshed with the plectrum gear 113, and one end, away from the two driving gears 116, of the plectrum gear 113 is provided with a plectrum clamp 115 for clamping the plectrum component 722. Through the setting of electric drive assembly 11, the controller drives plectrum gear 113 to rotate through controlling two motor syntropy rotations, stirs plectrum part 722 through plectrum holder 115 on plectrum gear 113, accomplishes closing or the separating brake operation of closing subassembly 7, realizes the effect of intelligent automatic switching power.
Referring to fig. 4, the common-end circuit breaker 1 and the standby-end circuit breaker 3 are respectively provided with a monitoring device 12 for monitoring three-phase voltage and three-phase current, and the two monitoring devices 12 are respectively connected with the switch controller 2. Through monitoring devices 12's setting, be convenient for real-time supervision is the voltage current data of the power that is using to when data anomaly appears, in time report to the police and power automatic switch-over, ensure to use electrical equipment can stabilize the power consumption operation, reach the effect that effectively improves the power consumption security. The controller circuit board 21 is provided with an external signal interface 212, and the switch controller 2 is in communication connection with a preset network cradle head through the external signal interface 212. Through the setting of external signal interface 212, the current and voltage data transmission to the network cloud platform will be gathered to the switch controller 2 of being convenient for, and the maintainer of being convenient for looks over, and maintainer also can be long-range to switch controller 2 send instruction simultaneously, realizes remote control and long-range modification parameter, reaches the effect that effectively improves intelligent automatic transfer switch's convenience practicality.
The above examples are only used to illustrate the technical solutions of the present invention, and do not limit the scope of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from these embodiments without making any inventive step, fall within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still make various combinations, additions, deletions or other modifications of the features of the embodiments of the present invention according to the situation without conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present invention, and these technical solutions also fall within the protection scope of the present invention.
Claims (10)
1. An intelligent automatic change-over switch is characterized in that: the emergency power supply system comprises a common-end circuit breaker (1) connected with a common power supply, a standby-end circuit breaker (3) connected with a standby power supply and a switch controller (2) respectively connected with the common-end circuit breaker (1) and the standby-end circuit breaker (3) which are arranged in sequence; a mechanical interlocking device (22) which is respectively connected with the common-end circuit breaker (1) and the standby-end circuit breaker (3) and limits simultaneous switching-on is arranged in the switch controller (2); the mechanical interlocking device (22) comprises a common end rotary table (24), a standby end rotary table (25) and a connecting rod assembly.
2. The intelligent automatic transfer switch of claim 1, wherein: common end circuit breaker (1) and reserve end circuit breaker (3) structure is the same, common end circuit breaker (1) and reserve end circuit breaker (3) all include circuit breaker shell (4), three-phase electricity wiring end (5), three-phase electricity leading-out terminal (6), be used for controlling closing assembly (7), traction lever (8) and tripping assembly (9) of three-phase electricity wiring end (5) and three-phase electricity leading-out terminal (6) break-make, three-phase electricity wiring end (5) and three-phase electricity leading-out terminal (6) all are connected with closing assembly (7), closing assembly (7) and tripping assembly (9) all are connected with traction lever (8).
3. The intelligent automatic transfer switch of claim 2, wherein: the switching-on assembly (7) comprises a knife switch rotating shaft (71), an operating mechanism (72) used for driving the knife switch rotating shaft (71) to rotate and three knife switch tool holders (73), wherein three knife switch blades (711) are sequentially arranged on the knife switch rotating shaft (71) along the length direction of the knife switch rotating shaft, the three knife switch blades are connected with a three-phase power terminal (5), the three knife switch tool holders (73) are connected with a three-phase power outlet terminal (6), movable contact blades (712) are arranged at the end parts of the three knife switch blades (711), static contact blades (731) are arranged on the three knife switch tool holders (73), and the three knife switch blades (711) are communicated with the three-phase power terminal (5) and the three-phase power outlet terminal (6) when the knife switch tool holders (73) are closed; arc extinguishing components (732) are arranged on the three knife switch knife holders (73).
4. The intelligent automatic transfer switch of claim 3, wherein: the switch controller (2) further comprises: a controller circuit board (21) and a controller housing (23) covering the controller circuit board (21); the controller circuit board (21) is provided with two circuit breaker signal interfaces (211), and the two circuit breaker signal interfaces (211) are respectively connected with the common end circuit breaker (1) and the standby end circuit breaker (3); first arc-shaped waist-shaped holes (231) are formed in the controller shell (23), the breaker shell (4) of the common-use end breaker (1) and the breaker shell (4) of the spare-end breaker (3) along the horizontal direction, one end of a common-use end limiting rod (241) penetrates through the first arc-shaped waist-shaped holes (231) to extend into the common-use end breaker (1) and is positioned on one side of a traction rod (8) in the common-use end breaker (1), and one end of a spare-end limiting rod (251) penetrates through the first arc-shaped waist-shaped holes (231) to extend into the spare-end breaker (3) and is positioned on one side of the traction rod (8) in the spare-end breaker (3); one side that common end carousel (24) is close to common end circuit breaker (1) is provided with common end stop lever (241) that is used for restricting common end circuit breaker (1) to close a floodgate, one side that reserve end carousel (25) is close to reserve end circuit breaker (3) is provided with reserve end stop lever (251) that is used for restricting reserve end circuit breaker (3) to close a floodgate.
5. The intelligent automatic transfer switch of claim 4, wherein: the connecting rod assembly is specifically a four-connecting-rod assembly (26) and comprises a first driving connecting rod (261), a second driving connecting rod (262), a third driving connecting rod (263) and a fourth driving connecting rod (264), the first driving connecting rod (261) and the second driving connecting rod (262) are coaxially and rotatably arranged on the inner side wall of the controller shell (23), and the rotating points of the first driving connecting rod (261) and the second driving connecting rod (262) do not form a long arm and a short arm at the center points of the rotating points; the long arm end of the first driving connecting rod (261) and the long arm end of the second driving rod (262) are arranged in a back-to-back mode, rotating rods (265) are arranged on one side of the controller shell (23), the breaker shell (4) of the common end breaker (1) and the breaker shell (4) of the standby end breaker (3) in a vertical mode, second arc-shaped kidney-shaped holes (232) are formed in the controller shell, the two rotating rods (265) extend into the common end breaker (1) and the standby end breaker (3) through the second arc-shaped kidney-shaped holes (232), and the two rotating rods (265) are connected with a rotating shaft of the common end breaker (1) and a knife switch rotating shaft (71) of the standby end breaker (3) respectively; one end of a short arm of the first driving connecting rod (261) is rotatably connected with one end of a third driving connecting rod (263), and the other end of the third driving connecting rod (263) is rotatably connected with the bottom of the outer side wall of one side, close to the common end rotating disk (24), of the spare end rotating disk (25); the long arm of the second driving connecting rod (262) is rotatably connected with one end of a fourth driving connecting rod (264), and the other end of the fourth driving connecting rod (264) is rotatably connected with the top of the outer side wall of one side, close to the spare end rotating disc (25), of the common end rotating disc (24); the third driving connecting rod (263) and the fourth driving connecting rod (264) are arranged in a Z shape.
6. The intelligent automatic transfer switch of claim 4, wherein: the common end turntable (24) and the standby end turntable (25) both comprise a first turntable body (27) and a second turntable body (28), the first turntable body (27) and the second turntable body (28) are mutually rotatably connected, a first clamping block (271) is arranged on the first turntable body (27), a second clamping block (281) and a third clamping block (282) are arranged on the second turntable body (28), the first clamping block (271) is positioned between the second clamping block (281) and the third clamping block (282), a first torsion spring (272) and a second torsion spring (273) which are used for limiting the mutual rotation of the first turntable body (27) and the second turntable body (28) are coaxially arranged between the first turntable body (27) and the second turntable body (28), one end of the first torsion spring (272) is abutted against the second clamping block (281), and the other end of the first torsion spring is abutted against the first clamping block (271); one end of the second torsion spring (273) is abutted against the third clamping block (282), and the other end of the second torsion spring is abutted against the first clamping block (271); the second tray body (28) is provided with a plurality of buckles (283) along the circumferential direction, the first tray body (27) is provided with a plurality of clamping plates (274) for clamping the buckles (283) along the circumferential direction, and the clamping plates (274) are provided with notches (275) for separating the buckles (283).
7. The intelligent automatic transfer switch of claim 3, wherein: the operating mechanism (72) comprises a bracket (721), a plectrum component (722) arranged on the rotating bracket (721) and a driving piece (723); the bottom of the plectrum component (722) is connected with an assisting spring (724), and one end, far away from the plectrum component, of the assisting spring (724) is connected with a driving part (723); one end of the driving piece (723) is rotationally connected with the bracket (721), and the other end of the driving piece is rotationally connected with the knife switch rotating shaft (71).
8. The intelligent automatic transfer switch of claim 7, wherein: the common-end circuit breaker (1) and the standby-end circuit breaker (3) are respectively provided with an electric driving assembly (11) for shifting a shifting piece component (722), the electric driving assembly (11) comprises a bottom plate (111), a support plate (112), a shifting piece gear (113) and two driving motors (114), and the two driving motors (114) are connected with a switch controller (2); the bottom plate (111) and the support plate (112) are fixedly connected with the breaker shell (4), the two driving motors (114) are installed on the bottom plate (111), the output shafts are arranged in the vertical direction, the support plate (112) is arranged above the two driving motors (114), and the shifting piece gear (113) is rotatably arranged on the support plate (112); output shafts of the two driving motors (114) penetrate through the support plate (112) and are connected with driving gears (116), the two driving gears (116) are meshed with the plectrum gear (113), and one end, far away from the two driving gears (116), of the plectrum gear (113) is provided with a plectrum clamp (115) used for clamping the plectrum component (722).
9. The intelligent automatic transfer switch of claim 1, wherein: the utility end circuit breaker (1) and reserve end circuit breaker (3) are all equipped with monitoring devices (12) that are used for monitoring three-phase voltage and three-phase current, two monitoring devices (12) all are connected with switch controller (2).
10. The intelligent automatic transfer switch of claim 9, wherein: an external signal interface (212) is arranged on the controller circuit board (21), and the switch controller (2) is in communication connection with a preset network holder through the external signal interface (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210217156.XA CN114582643A (en) | 2022-03-07 | 2022-03-07 | Intelligent automatic change-over switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210217156.XA CN114582643A (en) | 2022-03-07 | 2022-03-07 | Intelligent automatic change-over switch |
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| CN114582643A true CN114582643A (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210217156.XA Pending CN114582643A (en) | 2022-03-07 | 2022-03-07 | Intelligent automatic change-over switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115547775A (en) * | 2022-11-30 | 2022-12-30 | 南通市通州区精华电器有限公司 | Dual power supply's high-voltage circuit breaker mechanical interlocking mechanism |
-
2022
- 2022-03-07 CN CN202210217156.XA patent/CN114582643A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115547775A (en) * | 2022-11-30 | 2022-12-30 | 南通市通州区精华电器有限公司 | Dual power supply's high-voltage circuit breaker mechanical interlocking mechanism |
| CN115547775B (en) * | 2022-11-30 | 2023-09-05 | 南通市通州区精华电器有限公司 | Mechanical interlocking mechanism of dual-power-supply high-voltage circuit breaker |
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