CN110473723A - Dual power supply switching mechanism and switchgear with the dual power supply switching mechanism - Google Patents
Dual power supply switching mechanism and switchgear with the dual power supply switching mechanism Download PDFInfo
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- CN110473723A CN110473723A CN201910770262.9A CN201910770262A CN110473723A CN 110473723 A CN110473723 A CN 110473723A CN 201910770262 A CN201910770262 A CN 201910770262A CN 110473723 A CN110473723 A CN 110473723A
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- power switch
- power supply
- switch
- supply switching
- switching mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 151
- 230000009977 dual effect Effects 0.000 title claims abstract description 64
- 238000010276 construction Methods 0.000 claims abstract description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 63
- 230000003068 static effect Effects 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 description 24
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 10
- 230000009471 action Effects 0.000 description 10
- 230000004913 activation Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000009351 contact transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- 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
- 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
- H02J9/061—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 for DC powered loads
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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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- Physics & Mathematics (AREA)
- 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 invention discloses a kind of dual power supply switching mechanism and the switchgear with the dual power supply switching mechanism, dual power supply switching mechanism, comprising: common power switch is vacuum-tube switch；Backup Power Switch is vacuum-tube switch；Driving mechanism, including the first driving portion and the second driving portion, first driving portion drive the common power switch power on/off by lever construction；Second driving portion drives the Backup Power Switch power on/off by lever construction；Its arm of force for being located at the driving mechanism side of the lever construction is greater than the arm of force positioned at the common power switch or the Backup Power Switch side.It is slow to solve its common power switch of dual-power transfer switch in the prior art and Backup Power Switch conversion speed between the two, the disconnection and closed-ended question of switch contact can not be completed in 20ms.
Description
Technical field
The present invention relates to transfer switch technical fields, and in particular to dual power supply switching mechanism and have the dual power supply turn
It changes planes the switchgear of structure.
Background technique
Dual power supply switching mechanism has electromagnetism and motor two ways for the driving of moving contact on the market at present；Switch is dynamic
Contact position maintains electromagnetic force and spring force holding two ways.
Dual power supply switching mechanism is that have the main part of dual-power transfer switch, and dual power supply switching mechanism has two groups of stationary contacts
Head is separately connected common power supply and backup power source, one group of moving contact or two groups of moving contacts and above-mentioned static contact and links together shape
At output end.
The dual power supply switching mechanism of form of ownership all uses air blowout contact in the prior art；Moving contact, static contact point
From when generated electric arc, at least need the 10ms time that could extinguish under air conditions；Inventor expects using vacuum contact
Complete the disconnection and closure of switch contact, but to disconnect the driving force required with closure larger since vacuum contact completes switch,
Existing driving mechanism can not drive vacuum contact to complete switch disconnection and closed action.In addition, existing dual power supply conversion is opened
Close the disconnection and closure that switch contact can not be completed in 20ms.
Summary of the invention
Therefore, the present invention is intended to provide dual power supply switching mechanism and the change-over switch with the dual power supply switching mechanism, with
It solves its common power switch of dual-power transfer switch in the prior art and Backup Power Switch conversion speed between the two is slow,
The disconnection and closed-ended question of switch contact can not be completed in 20ms.For this purpose, the present invention provides a kind of dual power supply switching mechanism, packet
It includes:
A kind of dual power supply switching mechanism characterized by comprising
Common power switch is vacuum-tube switch；
Backup Power Switch is vacuum-tube switch；
Permanent mechanism driving mechanism, including the first driving portion and the second driving portion, first driving portion are driven by lever construction
Move the common power switch power on/off；Second driving portion drives the Backup Power Switch on-off by lever construction
Electricity；Its arm of force for being located at the permanent mechanism driving mechanism side of the lever construction, which is greater than, is located at the common power switch or described
The arm of force of Backup Power Switch side.
The common power switch includes the first static contact, and the first dynamic touching being connected with lever construction transmission
Head.
The Backup Power Switch, including, the second static contact, and the second dynamic touching being connected with lever construction transmission
Head.
The lever construction includes: support portion, and the actuating arm being rotatably arranged on the support portion, the actuating arm
Wherein one end for L-shaped structure, the actuating arm is rotated by the permanent mechanism driving mechanism, and the other end is dynamic with described first
Contact or second moving contact transmission are connected.
The connecting rod being rotatedly connected with it is provided on the actuating arm, the connecting rod drives first moving contact or described
Second moving contact moves along a straight line, and realizes the common power switch or the Backup Power Switch power on/off.
The lever construction includes: support portion, and the actuating arm being rotatably arranged on the support portion, the actuating arm
It is arranged along straight line, wherein one end of the actuating arm is rotated by the permanent mechanism driving mechanism, the other end and described first
Moving contact or second moving contact transmission are connected.
The connecting rod being rotatedly connected with it is provided on the actuating arm, the connecting rod drives first moving contact or described
Second moving contact moves along a straight line, and realizes the common power switch or the Backup Power Switch power on/off.
The permanent mechanism driving mechanism includes being oppositely arranged closing coil and closing iron core so that power supply is powered, is oppositely arranged
So that the opening coil and separating brake iron core of power cut-off, be arranged on the actuating arm and with the closing iron core and the separating brake
The armature that iron core is correspondingly arranged.
The permanent mechanism driving mechanism further includes permanent magnet, and the permanent magnet makes the armature and described closing iron core the two
Fit-state is kept, so that the common power switch or the Backup Power Switch are powered；Or, the permanent magnet makes the rank
Iron and described closing iron core the two keep discrete state, so that the common power switch or the Backup Power Switch are disconnected
Electricity.
The permanent mechanism driving mechanism further include: bias piece, the application of Xiang Suoshu actuating arm make it away from the closing iron core side
To mobile biasing force, to overcome the attraction of the permanent magnet bias piece far from the closing iron core that makes the armature.
The bias piece is spring.
A kind of power supply, above-mentioned dual power supply switching mechanism.
Technical solution of the present invention has the advantages that
1. dual power supply switching mechanism provided by the invention, comprising: common power switch is vacuum-tube switch；Backup power source
Switch is vacuum-tube switch；Permanent mechanism driving mechanism, including the first driving portion and the second driving portion, first driving portion pass through
Lever construction drives the common power switch power on/off；Second driving portion drives the backup power source by lever construction
Switch on and off electricity；Its arm of force for being located at the permanent mechanism driving mechanism side of the lever construction is greater than to be opened positioned at the common power supply
The arm of force of pass or the Backup Power Switch side.It, can activation lever structure when the first driving portion is under the traction of permanent magnetic drive
Rotation, the set-up mode of lever construction are that the arm of force of permanent mechanism driving mechanism side is greater than positioned at the common power switch or described
The arm of force of Backup Power Switch side can drive common power switch by lever principle under the action of permanent magnetic drive power
Be powered and power-off, with should the second driving portion under the traction of permanent magnetic drive, can activation lever structure rotation, in permanent magnetic drive power
Under the action of drive the energization and power-off of common power switch, both above-mentioned first driving portion and the second driving portion independent operating,
It is independent of each other, since the change-over switch of currently available technology form of ownership all uses air blowout contact, under air conditions, moves
Generated electric arc, sine wave zero crossing at least need the 10ms time that could extinguish when contact, static contact separation；And moving contact,
In vacuum tube, generated electric arc when can make moving contact, static contact separation extinguishes static contact less than 10ms；But because
For moving contact in vacuum tube, driving force needed for static contact separates it is larger, be difficult to provide in currently available technology biggish power to
The separation of moving contact, static contact in vacuum tube is driven, and the first driving portion and the second driving portion are in permanent magnetic drive in the present invention
Under traction, lever principle can be utilized under the action of electromagnetic driving force with activation lever structure, it is common to drive with lesser power
The energization and power-off of power switch and Backup Power Switch can solve dual power supply switching mechanism automatic conversion in the prior art
Switch is unable to satisfy the technological deficiency of the conversion action time less than 20ms.
2. dual power supply switching mechanism provided by the invention, the common power switch includes the first static contact, and with institute
State the first connected moving contact of lever construction transmission；The Backup Power Switch, including, the second static contact, and with the thick stick
The second connected moving contact of rod structure transmission.Since common power switch, the moving contact of Backup Power Switch, static contact setting exist
Inside vacuum tube, vacuum switch generated electric arc when enabling to can to make moving contact, static contact separation is put out less than 10ms
It goes out, so, drive the common power switch and backup power source to open with lesser power using permanent magnet driving device activation lever structure
The moving contact of pass both can quickly and easily realize the opening and closing of the power supply of common power switch and Backup Power Switch, to realize
Dual power supply switching mechanism automatic change-over is opened and closed rapidly, solves dual power supply switching mechanism automatic conversion in the prior art
Opening/closing time can not be less than the switching motion defect of 20ms.
3. dual power supply switching mechanism provided by the invention, the lever construction include: support portion, and are rotatably arranged on institute
The actuating arm on support portion is stated, the actuating arm is L-shaped structure, and wherein one end of the actuating arm is in the permanent mechanism driving mechanism
It is rotated by, the other end is connected with first moving contact or second moving contact transmission.By being rotatably arranged on support
The actuating arm of above-mentioned common source side in portion can convert electromagnetic driving force to first moving contact or described
The active force of two moving contact on-off, to simply and reliablely realize that common both power switch and Backup Power Switch one is logical
Electricity, in addition the actuating arm is L-shaped structure, so that permanent magnetic drive structure is concentrated mainly on middle position, it is the driving of L-shaped structure
Its both sides vacating space of arm reduces dual power supply switching mechanism volume, dual power supply switching mechanism is made to be adapted to different space cloth
Office needs, and adapts to different types of power supply assembly needs.
4. dual power supply switching mechanism provided by the invention, the lever construction include: support portion, and are rotatably arranged on institute
State the actuating arm on support portion, wherein one end of the actuating arm is rotated by the permanent mechanism driving mechanism, the other end with
First moving contact or second moving contact transmission are connected.By the above-mentioned common power supply that is rotatably arranged on support portion or
The actuating arm of person's standby electricity source can convert electromagnetic driving force to first moving contact or second moving contact
The active force of on-off is powered, in addition institute to simply and reliablely realize and commonly use both power switch and Backup Power Switch one
Stating actuating arm is rectilinear structure so that permanent magnetic drive structure main centralized driving arm side so that the first driving portion and
Certain space is vacateed between second driving portion, to adapt to different types of power supply assembly needs.
5. dual power supply switching mechanism provided by the invention, the connecting rod being rotatedly connected with it, institute are provided on the actuating arm
Stating connecting rod drives first moving contact or second moving contact to move along a straight line, and realizes the common power switch or described
Backup Power Switch power on/off.The actuating arm of common source side pushes the first moving contact and the by the connecting rod being rotatedly connected with it
The connection of one static contact disconnects；The actuating arm of standby electricity source by the connecting rod being rotatedly connected with it push the second moving contact with
The connection of second static contact disconnects；By the above-mentioned connecting rod being rotatedly connected with common source side actuating arm, and with it is spare
The connecting rod that the actuating arm of source side is rotatedly connected can drive the first moving contact and the second moving contact to move along a straight line, to make
One moving contact is accurately coupled logical towards the movement of the first static contact or disconnects, and makes the second moving contact accurately towards second
Static contact movement is coupled logical or disconnects, and avoids the first moving contact and the first static contact or the second moving contact and second
The problem of position deviation occurs for static contact docking.
6. dual power supply switching mechanism provided by the invention, the driving mechanism is permanent mechanism driving mechanism, permanent mechanism driving mechanism
Have the advantages that reaction speed is fast, common power switch and Backup Power Switch are controlled using permanent mechanism driving mechanism, it can be into one
Step improves its opening and closing speed of dual power supply switching mechanism automatic change-over.
7. dual power supply switching mechanism provided by the invention, the permanent mechanism driving mechanism includes being oppositely arranged so that power supply is powered
Closing coil and closing iron core, be oppositely arranged opening coil and separating brake iron core so that power cut-off, and be arranged described
The armature being correspondingly arranged on actuating arm and with the closing iron core and the separating brake iron core；The permanent mechanism driving mechanism further includes forever
Magnet, the permanent magnet make the armature and described closing iron core the two keep fit-state, make the common power switch
Or the Backup Power Switch is powered；Or, the permanent magnet makes the armature and described closing iron core the two keep separation shape
State powers off the common power switch or the Backup Power Switch.It can letter by the permanent mechanism driving mechanism of above structure
It is singly reliably achieved PC grades or CB grades of dual power supply switching mechanism and realizes the common switching motion between backup power source.
8. dual power supply switching mechanism provided by the invention, the permanent mechanism driving mechanism further include: bias piece, to the driving
Arm, which applies, makes it away from the mobile biasing force in the closing iron core direction, to overcome the attraction of the permanent magnet to make the armature
Bias piece far from the closing iron core.The bias piece is to make it away from the closing iron core direction to actuating arm application
The component of mobile biasing force, bias piece are the elastomeric elements such as spring or rubber, for example, when Backup Power Switch closure,
Closing coil, which is powered, generates electromagnetic force, attracts armature that bias piece elastic force is overcome to move to close to closing iron core direction by closing iron core
Dynamic, the actuating arm with the fixed linkage of armature pushes the connecting rod being rotatedly connected with it that the second moving contact is driven to move by lever principle
It is dynamic, realize that Backup Power Switch closure is powered.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the first embodiment provided by the invention only commonly uses power switch and is in energized state, at backup power source
In its working state schematic representation of the dual power supply switching mechanism of de-energized；
Fig. 2 is that only Backup Power Switch is in energized state to the first embodiment provided by the invention, is commonly used at power supply
In its working state schematic representation of the dual power supply switching mechanism of open position；
Fig. 3 is that the first embodiment provided by the invention often uses power switch and Backup Power Switch while being in power-off
Its working state schematic representation of the power switching mechanism of position；
Fig. 4 is that second of embodiment provided by the invention is often disconnected with power switch, the electricity of Backup Power Switch closure
Its working state schematic representation of source switching mechanism；
Fig. 5 is that the third embodiment provided by the invention is often closed with power switch, the electricity that Backup Power Switch disconnects
Its working state schematic representation of source switching mechanism；
Fig. 6 is that the 4th kind of embodiment provided by the invention is often closed with power switch, the electricity that Backup Power Switch disconnects
Its working state schematic representation of source switching mechanism；
Fig. 7 is that the 5th kind of embodiment provided by the invention is often closed with power switch, the electricity that Backup Power Switch disconnects
Its working state schematic representation of source switching mechanism；
Description of symbols:
1- often uses power switch；2- Backup Power Switch；The first driving portion of 3-；The second driving portion of 4-；5- permanent magnet；6- points
Brake cable circle；7- closing coil；8- separating brake iron core；9- closing iron core；The first moving contact of 10-；The first static contact of 11-；12- second is dynamic
Contact；The second static contact of 13-；14- actuating arm；The first support portion of 15-；17- first connecting rod；18- armature；19- bias piece；20-
Dynamic iron core；The magnetostatic body of 23-；The first electromagnetic coil of 24-；The second electromagnetic coil of 25-；26- interlocking bar；27- support frame；28- first
Connecting rod；The second support portion of 29-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
Dual power supply switching mechanism provided in this embodiment, as shown in Figure 1 to Figure 3 comprising:
Common power switch 1 is vacuum-tube switch；The common power switch 1 include the first static contact 11, and with institute
State the first connected moving contact 10 of lever construction transmission；
Backup Power Switch 2 is vacuum-tube switch；The Backup Power Switch 2, including, the second static contact 13, Yi Jiyu
The second connected moving contact 12 of the lever construction transmission.
Permanent mechanism driving mechanism, including the first driving portion 3 and the second driving portion 4, existing transfer switch all use sky
Gas arcing contact, referred to as air contact.Generated electric arc, at least needs under air conditions when moving contact, static contact separation
Want the 10ms time that could extinguish；To ensure that common power supply and the nonsynchronous power supply of backup power source two-way go out without going past above-mentioned air
The electric arc conducting of arcing contact is together, it is necessary to which to existing moving contact, there are at least journey times of 20ms.Therefore existing double
Transfer switch can not complete conversion in 20ms.Existing air blowout touching is substituted using vacuum-tube switch in the application
Head, vacuum-tube switch have the advantages that arc extinguishing is rapid, can be completed in a short time the work of common power supply and backup power source switching
Make, it is common to meet so as to rapidly realize the function being switched fast between output end and common power supply and backup power source
Switching action can be completed between power supply and backup power source in 20ms；
Driving mechanism, including the first driving portion 3 and the second driving portion 4, first driving portion 3 are driven by lever construction
1 power on/off of common power switch；Second driving portion 4 drives 2 on-off of Backup Power Switch by lever construction
Electricity；Its arm of force for being located at the permanent mechanism driving mechanism side of the lever construction, which is greater than, is located at the common power switch 1 or institute
State the arm of force of 2 side of Backup Power Switch.When the first driving portion 3 is under the traction of electromagnetic drive, can the rotation of activation lever structure,
The set-up mode of lever construction is that the arm of force of permanent mechanism driving mechanism side is greater than positioned at the common power switch 1 or described spare
The arm of force of 2 side of power switch can drive the logical of common power switch 1 by lever principle under the action of electromagnetic driving force
Electricity with power-off, with should the second driving portion 4 under the traction of electromagnetic drive, can activation lever structure rotation, in electromagnetic driving force
Under the action of drive the energization and power-off of common power switch 2, the independent fortune of both above-mentioned first driving portion 3 and the second driving portion 4
Row, is independent of each other.In the prior art, biggish power is needed to drive the closure of vacuum-tube switch, is difficult at present, and this hair
In bright, by above-mentioned driving structure, common power supply or standby electricity are controlled using activation lever under the action of electromagnetic driving force
Source vacuum tube disconnects and closure, the work of common power supply and backup power source switching can be completed in a short time, so as to fast
Realize the function that output end is switched fast between common power supply and backup power source respectively, fastly to meet common power supply and spare
It can be in 20ms between power supply.
Above-mentioned driving mechanism further include: lever construction, the lever construction includes: support portion 15, and is rotatably arranged on
Actuating arm 14 on the support portion 15, the actuating arm 14 are L-shaped structure, wherein one end of the actuating arm 14 it is described forever
Magnetic driving mechanism is rotated by, and the other end is connected with first moving contact 10 or second moving contact 12 transmission.Pass through
It is rotatably arranged on the actuating arm 14 of the above-mentioned common source side on support portion 15, can be converted electromagnetic driving force to described
The active force of first moving contact 10 or 12 on-off of the second moving contact, to simply and reliablely realize common 1 He of power switch
Both Backup Power Switch 2 one is powered, and the setting of L-type structure can make permanent magnetic drive structure be concentrated mainly on interposition
It sets, is its both sides vacating space of the actuating arm 14 of L-shaped structure, reduces dual power supply switching mechanism volume, make dual power supply switching mechanism
Different space layout needs are adapted to, different types of power supply assembly needs are adapted to.Above-mentioned actuating arm 14 is also set up
There is the first connecting rod 17 being rotatedly connected with it, the first connecting rod 17 drives first moving contact 10 or second moving contact
12 move along a straight line, so that the first moving contact 10 is made accurately to move coupled logical towards the first static contact 11 or disconnect,
So that the second moving contact 12 is accurately moved coupled logical towards the second static contact 13 or is disconnected, avoids 10 He of the first moving contact
The problem of position deviation occurs for the first static contact 11 or the docking of the second moving contact 12 and the second static contact 13.It realizes described normal
With 2 power on/off of power switch 1 or the Backup Power Switch.
The permanent mechanism driving mechanism includes being oppositely arranged closing coil 7 and closing iron core 9 so that power supply is powered, opposite to set
Set opening coil 6 and separating brake iron core 8 so that power cut-off, be arranged on the actuating arm 14 and with the closing iron core 9 and
The armature 18 that the separating brake iron core 8 is correspondingly arranged；The permanent mechanism driving mechanism further includes permanent magnet 5, and the permanent magnet 5 makes described
Armature 18 and 9 the two of the closing iron core keep fit-state, so that the common power switch 1 or the backup power source are opened
2 are closed to be powered；Or, the permanent magnet 5 makes the armature 18 and 9 the two of the closing iron core keep discrete state, so that described
Common power switch 1 or the Backup Power Switch 2 power off.
The permanent mechanism driving mechanism further include: bias piece 19, the application of Xiang Suoshu actuating arm 14 make it away from the combined floodgate iron
The mobile biasing force in 9 direction of core, to overcome the attraction of the permanent magnet 5 to make the armature 18 far from the closing iron core 9
Bias piece 19.The bias piece 19 is spring.Armature 18 is attracted to overcome 19 elastic force of bias piece to close to combined floodgate by closing iron core 9
9 direction of iron core is mobile, and the actuating arm 14 with the fixed linkage of armature 18 pushes be rotatedly connected with it first to connect by lever principle
Bar 17 drives the second moving contact 12 mobile, it can be achieved that the closure of Backup Power Switch 2 is powered.
The present embodiment also provides a kind of power supply, above-mentioned dual power supply switching mechanism.
Certain the application is not specifically limited the form of dual power supply switching mechanism, and in other embodiments, dual power supply turns
Structure of changing planes can be also PC grades of automatic transfer switching electric appliances, and PC grades of automatic transfer switching electric appliances only have power source conversion function, not short
Short-circuit protective device must be arranged in road and overload protection function, PC grades of automatic transfer switching electric appliance front ends, such as: fuse is to guarantee
The safety of dual power supply switching mechanism.
Dual power supply switching mechanism provided in this embodiment includes following mode of operation: including following mode of operation:
1, when common power switch 1 is closed, and Backup Power Switch 2 disconnects:
The armature 18 of first driving portion 3 is attracted with closing iron core 9 under 5 magneticaction of permanent magnet and remain stationary shape
State, armature 18 are bonded with the fixation of actuating arm 14, to make the actuating arm 14 of common 1 side of power switch that the first moving contact 10 be driven to protect
It holds to contact with the first static contact 11 and be connected, be kept closed common power switch 1.
At this point, the armature 18 of second driving portion 4, far from separating brake iron core 8, Backup Power Switch 2 is in an off state.
The magnetic force of the permanent magnet 5 of 2 side of Backup Power Switch is not enough to overcome the elastic force of bias piece 19, and the second moving contact 12 is in bias piece 19
Under the action of hold it away from the position of the second static contact 13；
2, it when CB grades of dual power supply switching mechanisms, when there is short circuit, commonly uses power switch 1 and disconnects, while Backup Power Switch 2
It disconnects:
The opening coil 6 of first driving portion 3, which is powered, generates magnetic flux, the magnetic flux of permanent magnet 5 is reduced, so that permanent magnet
5 electromagnetic forces generated become smaller, and the electromagnetic force is less than the elastic force of bias piece 19, and the actuating arm 14 of common 1 side of power switch is made to exist
It is moved counterclockwise under the elastic force effect of bias piece 19 to far from 8 direction of separating brake iron core, drives the first moving contact of common 1 side of power supply
10 far from the first static contact 11, disconnects common power switch 1.
4 opening coil 6 of the second driving portion, which is powered, at this time generates magnetic flux, reduces the magnetic flux of permanent magnet 5, so that
Permanent magnet 5 generate electromagnetic force become smaller, the electromagnetic force be less than bias piece 19 elastic force, cause armature 18 together with actuating arm 14 to
It being moved clockwise far from 8 direction of separating brake iron core, the actuating arm 14 of elastic force driving 2 side of backup power source of the bias piece 19 rotates,
To which the second moving contact 12 of 2 side of backup power source is pulled to the position far from the second static contact 13, until Backup Power Switch 2
It disconnects.
3, when common power switch 1 is from off-state is closed to, Backup Power Switch 2 is from when being disconnected to closed state:
The opening coil 6 of first driving portion 3, which is powered, generates magnetic flux, and separating brake iron core 8 generates electromagnetic force to overcome bias
The elastic force of part 19 rotates counterclockwise armature 18 to far from 8 direction of separating brake iron core together with actuating arm 14, thus by rotating with it
First moving contact 10 of common power supply 1 is pulled to the position far from the first moving contact 10, Zhi Daochang by connected first connecting rod 17
It is disconnected with power switch 1；Common power switch 1 remains off under the elastic force effect of bias piece 19；
The subsequent movement as follows of second driving portion 4, closing coil 7, which is powered, generates magnetic flux, passes through the electromagnetic force of closing iron core 9
Armature 18 is attracted to overcome the elastic force of bias piece 19, so that armature 18 is with the actuating arm 14 fixed thereto being connected to close to closing iron core
9 directions are moved counterclockwise, and the first connecting rod 17 being rotatedly connected on the actuating arm 14 with it is pulled to drive 12 court of the second moving contact
It is mobile to the second static contact 13, it is connected until the second moving contact 12 is contacted with the second static contact 13.At this point, 5 magnetic flux of permanent magnet
Increase, the magnetic force of permanent magnet 5 is greater than 19 elastic force of bias piece, and Backup Power Switch 2 is made to remain powered on state.
Embodiment 2
Dual power supply switching mechanism provided in this embodiment, as shown in figure 4, the present embodiment is the difference from embodiment 1 is that forever
Magnetic driving mechanism, the permanent mechanism driving mechanism include: dynamic iron core 20, and the dynamic iron core 20 is connected with interlocking bar 26, it is close or
It moves back and forth between 14 direction of actuating arm of actuating arm 14 or the standby electricity source of the person far from the common source side.
Above-mentioned permanent mechanism driving mechanism further include: static iron core 23, be positioned close to the standby electricity source 14 side of actuating arm first
Electromagnetic coil 24, the second electromagnetic coil 25, and for making the dynamic iron core 20 be maintained at first on-position or described
The permanent magnet 21 of de-energized or second on-position, above-mentioned static iron core 23 have for accommodating the dynamic iron core 20, institute
State permanent magnet 21 and first electromagnetic coil 24 and second electromagnetic coil 25, the sliding that the dynamic iron core 20 is driven
In in the cavity.Above-mentioned permanent magnet 21 can effectively realize the effect of the permanent magnetism holding to dynamic iron core 20, and dynamic iron core 20 is by forever
Stationary state can be effectively kept under the magneticaction of magnet 21, make common power switch 1, Backup Power Switch 2 be powered or
Person's power-off；
When common power switch 1 disconnects, and Backup Power Switch 2 is closed:
First electromagnetic coil 24 of common 1 side of power switch is powered, and under the magnetic force, is driven often by dynamic iron core 20
It is rotated counterclockwise with the direction that the actuating arm 14 of source side is directed away from common permanent mechanism driving mechanism, it is and normal in moving process
The first connecting rod 17 being rotatedly connected with the actuating arm 14 of source side pushes the first moving contact 10 to be connected with the contact of the second static contact 13,
Common power switch 1 disconnects power-off.
Then, the second electromagnetic coil 25 of 2 side of Backup Power Switch is powered, and under the magnetic force, passes through dynamic iron core 20
The actuating arm 14 of standby electricity source is driven to rotate counterclockwise towards the direction close to spare permanent mechanism driving mechanism, in moving process
In, the first connecting rod 17 being rotatedly connected at this time with the actuating arm 14 of standby electricity source pushes the second moving contact 12 and the second static contact
13 contacts are connected, and the closure of Backup Power Switch 4 is powered.
With should Backup Power Switch 4 disconnect switch, commonly use 1 closure switch of power switch when, working condition is opposite.
Embodiment 3
Dual power supply switching mechanism provided in this embodiment, as shown in figure 5, the present embodiment is the difference from embodiment 1 is that
The difference of the locational space of one driving portion 3 and the second driving portion 4 layout, as shown in figure 5, dual power supply switching mechanism includes common electricity
Source switch 1 and Backup Power Switch 2, position are oppositely arranged in opposed vertical direction, further include permanent mechanism driving mechanism, permanent magnetism
Driving mechanism includes the first driving portion 3 and the second driving portion 4, and first driving portion 3 is opened by lever construction and common power supply
1 is closed to be connected；Second driving portion 4 is driven by lever construction to be connected with Backup Power Switch 2；The lever construction is in
L-type is bent toward horizontal direction, and the arm of force for being located at the permanent mechanism driving mechanism side, which is greater than, is located at the common power switch 1
Or the arm of force of 2 side of Backup Power Switch, first driving portion 3 are opposite in vertical direction with second driving portion 4
Setting.It the advantage is that the layout needs suitable for different spaces.
Embodiment 4
Dual power supply switching mechanism provided in this embodiment, as shown in fig. 6, dual power supply switching mechanism includes common power switch
1 and Backup Power Switch 2, it further includes permanent magnet driver that common power switch 1 and Backup Power Switch 2 are arranged in horizontal direction
Structure, permanent mechanism driving mechanism include the first driving portion 3 and the second driving portion 4, and first driving portion 3 is by lever construction and often
It is connected with power switch 1；Second driving portion 4 is driven by lever construction to be connected with Backup Power Switch 2；The thick stick
Rod structure is of a straight line type, so that permanent magnetic drive structure main centralized driving arm side, so that the first driving portion 3 and second drives
Certain space is vacateed between dynamic portion 4, actuating arm linear type design makes dual power supply switching mechanism be adapted to different spaces
Layout needs, and adapts to different types of power supply assembly needs.
Embodiment 5
Dual power supply switching mechanism provided in this embodiment, as shown in fig. 7, the present embodiment is the difference from embodiment 1 is that forever
In Magnetic driving structure, a support frame 27, the first connecting rod 28 and branch are set between the first driving portion 3 and the second driving portion 4
Support 27 is connected by the second support portion 29, and first connecting rod 28 is swung centered on the second support portion 29, first connection
28 both-side ends two sides of bar are located at the actuating arm 14 of common source side and 14 lower end of actuating arm of standby electricity source, at the two
When horizontality, common power switch 1 is in off-state with Backup Power Switch 2, closes when common power switch 1 is in
When conjunction state, the actuating arm 14 of common source side drives first connecting rod 28 to rotate counterclockwise, due to lever principle, the first connection
Bar 28 is then moved upwards close to 14 one end of actuating arm of common source side, and the actuating arm 14 of driving standby electricity source rotates, so that
Backup Power Switch disconnects, and similarly it is found that when backup power source closure, the actuating arm 14 of standby electricity source drives first connecting rod
28 move down close to the actuating arm 14 of standby electricity source, and due to lever principle, first connecting rod 28 is far from standby electricity source
Actuating arm 14 then moves upwards, so that common power switch 1 disconnects, the use of the device makes common power switch 1 and standby electricity
Source switch 2 can not be powered simultaneously, and whole conversion process is allow to accomplish the function of first powering off " first have no progeny and connect " for being connected to again, with solution
It the problem of lacking mechanical self-locking device between its common power supply of dual power supply switching mechanism certainly in the prior art and backup power source, keeps away
The control switch for exempting from common power switch 1 and Backup Power Switch 2 is possible to will appear the case where being closed at energization generation, keeps away
Exempt from common power switch 1 and generation the problem of Backup Power Switch 2 is shorted together, causes safety accident.
Certainly, the present patent application is not particularly limited the position of common power switch 1 and Backup Power Switch 2, at it
In its embodiment, the position of common power switch 1 and Backup Power Switch 2 can mutually be exchanged.
Certainly, the present patent application is not particularly limited bias piece structure, and in other embodiments, above-mentioned bias piece 19 is also
It can be with the elastomeric element that deformation occurs for rubber parts etc..
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (11)
1. a kind of dual power supply switching mechanism characterized by comprising
Common power switch (1) is vacuum-tube switch；
Backup Power Switch (2) is vacuum-tube switch；
Driving mechanism, including the first driving portion (3) and the second driving portion (4), first driving portion (3) are driven by lever construction
Move common power switch (1) power on/off；Second driving portion (4) drives the Backup Power Switch by lever construction
(2) power on/off；Its arm of force for being located at the driving mechanism side of the lever construction, which is greater than, is located at the common power switch (1)
Or the arm of force of Backup Power Switch (2) side.
2. dual power supply switching mechanism according to claim 1, which is characterized in that
The common power switch (1) includes the first static contact (11), and first to be connected with lever construction transmission is dynamic
Contact (10)；
The Backup Power Switch (2), including, the second static contact (13), and second to be connected is driven with the lever construction
Moving contact (12).
3. dual power supply switching mechanism according to claim 2, which is characterized in that the lever construction includes: the first support
Portion (15), and the actuating arm (14) being rotatably arranged on first support portion (15), the actuating arm (14) are L shape knot
Wherein one end of structure, the actuating arm (14) is rotated by the driving mechanism, the other end and first moving contact
(10) or second moving contact (12) transmission is connected.
4. dual power supply switching mechanism according to claim 3, which is characterized in that be provided on the actuating arm (14) and its
The first connecting rod (17) being rotatedly connected, the first connecting rod (17) drive first moving contact (10) or second moving contact
(12) it moves along a straight line, realizes the common power switch (1) or the Backup Power Switch (2) power on/off.
5. dual power supply switching mechanism according to any one of claim 2 to 4, which is characterized in that the lever construction packet
It includes: the first support portion (15), and the actuating arm (14) being rotatably arranged on first support portion (15), the actuating arm
(14) be arranged along straight line, wherein one end of the actuating arm (14) is rotated by the driving mechanism, the other end with it is described
First moving contact (10) or second moving contact (12) transmission are connected.
6. dual power supply switching mechanism according to claim 5, which is characterized in that be provided on the actuating arm (14) and its
The first connecting rod (17) being rotatedly connected, the first connecting rod (17) drive first moving contact (10) or second moving contact
(12) it moves along a straight line, realizes the common power switch (1) or the Backup Power Switch (2) power on/off.
7. dual power supply switching mechanism according to any one of claim 3 to 6, which is characterized in that the driving mechanism is
Permanent mechanism driving mechanism.
8. dual power supply switching mechanism according to claim 7, which is characterized in that
The permanent mechanism driving mechanism includes being oppositely arranged closing coil (7) and closing iron core (9) so that power supply is powered, opposite to set
Set opening coil (6) and separating brake iron core (8) so that power cut-off, be arranged on the actuating arm (14) and with the combined floodgate iron
The armature (18) that core (9) and the separating brake iron core (8) are correspondingly arranged；
The permanent mechanism driving mechanism further includes permanent magnet (5), and the permanent magnet (5) makes the armature (18) and the closing iron core
(9) the two keeps fit-state, so that the common power switch (1) or the Backup Power Switch (2) are powered；Or, institute
Stating permanent magnet (5) makes the armature (18) and the closing iron core (9) the two keep discrete state, so that the common power supply
Switch (1) or the Backup Power Switch (2) power-off.
9. dual power supply switching mechanism according to claim 8, which is characterized in that the permanent mechanism driving mechanism further include: partially
Casting die (19), Xiang Suoshu actuating arm (14), which applies, makes it away from the mobile biasing force in the closing iron core (9) direction, to overcome
The attraction for stating permanent magnet (5) makes the bias piece (19) of the armature (18) separate the closing iron core (9).
10. dual power supply switching mechanism according to claim 9, which is characterized in that the bias piece (19) is spring.
11. a kind of switchgear, which is characterized in that including the dual power supply interpreter as described in any one of claims 1 to 11
Structure.
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| CN201910770262.9A CN110473723B (en) | 2019-08-20 | 2019-08-20 | Dual power supply switching mechanism and switch equipment with same |
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| CN201910770262.9A CN110473723B (en) | 2019-08-20 | 2019-08-20 | Dual power supply switching mechanism and switch equipment with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114784952A (en) * | 2022-05-27 | 2022-07-22 | 衢州杭氧气体有限公司 | Uninterruptible power supply system |
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| Publication number | Publication date |
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| CN110473723B (en) | 2024-04-19 |
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