CN111696823A - Synchronous linked fast switch - Google Patents
Synchronous linked fast switch Download PDFInfo
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- CN111696823A CN111696823A CN202010661017.7A CN202010661017A CN111696823A CN 111696823 A CN111696823 A CN 111696823A CN 202010661017 A CN202010661017 A CN 202010661017A CN 111696823 A CN111696823 A CN 111696823A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims description 62
- 230000003068 static effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 6
- 239000000872 buffer Substances 0.000 description 9
- 230000005672 electromagnetic field Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
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- 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
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/52—Interlocking mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a synchronous linkage quick switch, which comprises a main beam, a driving device, at least two switch parts and connecting rod parts which are in one-to-one correspondence with the switch parts, wherein the main beam is provided with a plurality of connecting rods; one end part of the connecting rod part is connected with the corresponding switch part; the other end of the connecting rod part is connected to the main cross beam; the driving device is connected with the main beam and used for acting to drive the main beam to move, and further drives the connecting rod part to move synchronously, so that the connecting rod part drives the corresponding switch part to be switched on or switched off. The invention can drive the quick switch to be synchronously switched on and switched off in a mechanical linkage mode, improves the consistency of switching on and switching off actions, and can also reduce the volume and the manufacturing cost.
Description
Technical Field
The invention relates to a synchronous linkage quick switch.
Background
At present, in the application of a three-phase fast switch, the opening and closing of each set of vacuum arc-extinguishing chamber are independently controlled by one set of driving device, and then one set of driving device can only control the opening and closing of one-phase electrical port. Therefore, the existing three-phase quick switch needs three sets of driving devices, and the existing three-phase quick switch has the defects of large volume, high overall cost and the like. And the three sets of driving devices independently control the corresponding vacuum arc-extinguishing chambers, and due to errors of part processing and assembly, the three sets of driving devices are asynchronous in action, so that the opening and closing actions of the three-phase quick switch are asynchronous and lack of consistency.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a synchronous linkage quick switch, which can drive the quick switch to be synchronously opened and closed in a mechanical linkage mode, improve the consistency of opening and closing actions, reduce the volume and reduce the manufacturing cost.
In order to solve the technical problems, the technical scheme of the invention is as follows: a synchronous linkage quick switch comprises a main beam, a driving device, at least two switch parts and connecting rod parts which are in one-to-one correspondence with the switch parts; wherein,
one end part of the connecting rod part is connected with the corresponding switch part;
the other end of the connecting rod part is connected to the main cross beam;
the driving device is connected with the main beam and used for acting to drive the main beam to move, and further drives the connecting rod part to move synchronously, so that the connecting rod part drives the corresponding switch part to be switched on or switched off.
Further provides a concrete scheme of the switch component, the switch component is a vacuum arc-extinguishing chamber, and a static contact and a moving contact are arranged in the vacuum arc-extinguishing chamber;
one end of the connecting rod component is connected with a moving contact in the corresponding vacuum arc-extinguishing chamber, so that when the driving device drives the main beam and the connecting rod component to move, the moving contact is driven to move to abut against the fixed contact or to move to be separated from the fixed contact.
Further provides a specific scheme of the driving device, the driving device comprises at least one driving mechanism, and the driving mechanism comprises a power mechanism and a driving part; wherein,
one end part of the driving part is connected with the main cross beam;
the power mechanism is connected with the other end of the driving part and is used for acting to drive the driving part and the main cross beam to move.
Further, the synchronous linkage quick switch also comprises a shell; wherein,
the driving part is connected to the shell in a sliding mode;
the main beam is connected to the upper end part of the driving part;
the power mechanism is connected with the lower end part of the driving part.
Further, a specific structure of the driving part is provided, wherein the driving part comprises a driving rod and at least one supporting plate; wherein,
the lower end part of the driving rod is connected with the power mechanism;
the lower end of the supporting plate is connected with the driving rod, and the upper end of the supporting plate is connected with the main cross beam.
Further provides a concrete structure of the supporting plate, the supporting plate is of a triangular structure, and/or a lightening hole is formed in the supporting plate.
Furthermore, the supporting plates are at least two, and all the supporting plates are circumferentially distributed by taking the central shaft of the driving rod as a circle center.
The specific scheme of the power mechanism is further provided, the power mechanism is an electromagnetic repulsion mechanism, and the electromagnetic repulsion mechanism comprises a closing coil, an opening coil and a repulsion disc; wherein,
the repulsion disc is connected with the driving part;
the closing coil is arranged below the repulsion plate and is used for being electrified to generate an upward electromagnetic repulsion force on the repulsion plate, and then the main beam is driven to move upwards through the driving part;
the opening coil is arranged above the repulsion plate and is used for being electrified to generate downward electromagnetic repulsion force on the repulsion plate, and the main beam is driven to move downwards by the driving part.
Further, in order to improve the stability of switching-off and switching-on, the synchronous linkage quick switch also comprises at least one bistable mechanism; wherein,
the driving part is provided with a first station corresponding to the opening and closing of the switching part and a second station corresponding to the closing of the switching part in the moving process;
the bistable mechanism is used for applying a holding force to the driving part or the repulsive disc so as to hold the position of the driving part when the driving part is positioned at the first station or the second station.
Further, in order to buffer the main cross beam, the synchronous linkage quick switch further comprises at least one buffer device which is arranged below the main cross beam and used for abutting against the lower end part of the main cross beam when the main cross beam moves downwards to a proper position.
After the technical scheme is adopted, the driving device drives the main beam to move horizontally, and then the main beam drives all the connecting rod parts to move synchronously, so that mechanical linkage action of all the connecting rod parts is realized, all the vacuum arc extinguish chambers can be synchronously opened or closed, the consistency of three-phase opening and closing is improved, the whole size can be reduced, the occupied space is reduced, and the manufacturing cost is reduced. The driving device is provided with the electromagnetic repulsion mechanism, so that the response time can be greatly shortened, the rigid opening speed can be improved, the rapid isolation and clearing of the power grid fault can be facilitated, and the stability of opening and closing can be improved by the bistable mechanism.
Drawings
FIG. 1 is a schematic diagram of a synchronous linked fast switch according to the present invention;
FIG. 2 is another schematic diagram of the synchronous linked fast switch of the present invention;
FIG. 3 is a third structural view of the synchronized linked fast switch of the present invention;
FIG. 4 is a fourth structural diagram of the synchronized linked fast switch of the present invention;
fig. 5 is a schematic structural diagram of the bistable mechanism of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example one
As shown in fig. 1 and 2, a synchronous linkage fast switch comprises a main beam 1, a driving device 2, at least two switch components 3 and connecting rod components 4 corresponding to the switch components 3 one by one; wherein,
one end part of the connecting rod part 4 is connected with the corresponding switch part 3;
the other end of the connecting rod part 4 is connected to the main beam 1;
the driving device 2 is connected with the main beam 1 and is used for acting to drive the main beam 1 to move, so as to drive the connecting rod part 4 to move synchronously, so that the connecting rod part 4 drives the corresponding switch part 3 to open or close. Specifically, through main beam 1 has realized the mechanical type linkage of all connecting rod parts 4, makes all switching part 3 can divide the floodgate or close the floodgate in step, is favorable to improving the uniformity of three-phase divide-shut brake, can also reduce holistic volume, reduces occupation space to manufacturing cost has been reduced. Further specifically, the main beam 1 is horizontally arranged, the main beam 1 is made of a material with high specific strength, the cross section of the main beam is of an I-shaped structure, reinforcing ribs are further arranged on the main beam 1, the rigidity of the main beam 1 can be improved through the design, so that all the connecting rod parts 4 can be ensured to synchronously act, and further all the switch parts 3 can be ensured to be synchronously switched on and off, wherein the lower end parts of the connecting rod parts 4 are fixedly connected to the main beam 1.
As shown in fig. 1 and 2, the switch component 3 may be a vacuum arc-extinguishing chamber, and a fixed contact 5 and a movable contact 6 may be disposed in the vacuum arc-extinguishing chamber;
one end of the connecting rod component 4 is connected with a moving contact 6 in a corresponding vacuum arc-extinguishing chamber, so that when the driving device 2 drives the main beam 1 and the connecting rod component 4 to move, the moving contact 6 is driven to move to abut against the static contact 5 or the moving contact 6 is driven to move to be separated from the static contact 5; specifically, when the moving contact 6 abuts against the fixed contact 5, the vacuum arc-extinguishing chamber is in a closing state, and when the moving contact 6 is separated from the fixed contact 5, the vacuum arc-extinguishing chamber is in an opening state. In this embodiment, there are 3 vacuum arc-extinguishing chambers, the static contact 5 is disposed above the moving contact 6, and the top of the connecting rod component 4 is connected to the bottom of the moving contact 6.
As shown in fig. 1 and 2, the driving device 2 may include at least one driving mechanism, such as, but not limited to, a structure including a power mechanism and a driving member 10; wherein,
one end of the driving part 10 is connected with the main beam 1;
the power mechanism is connected with the other end of the driving part 10 and is used for acting to drive the driving part 10 and the main beam 1 to move; in this embodiment, actuating mechanism is equipped with one, compares and controls the scheme of 3 vacuum interrupter divide-shut brake respectively through three actuating mechanism among the prior art, and this embodiment has reduced the quantity of spare part, has effectively reduced manufacturing cost.
Specifically, the synchronous linkage quick switch can further comprise a shell; wherein,
the driving part 10 is connected to the shell in a sliding way;
the main beam 1 is connected to the upper end part of the driving part 10;
the power mechanism is connected with the lower end part of the driving part 10; specifically, be equipped with the uide bushing on the shell, drive unit 10 sliding connection in the uide bushing and through uide bushing sliding connection be in on the shell, vacuum interrupter can connect on the shell.
As shown in fig. 1 and 2, the driving member 10 includes, for example, but not limited to, a driving rod 11 and at least one supporting plate 12; wherein,
the lower end part of the driving rod 11 is connected with the power mechanism;
the lower end part of the support plate 12 is connected with the drive rod 11, and the upper end part of the support plate 12 is connected with the main beam 1; specifically, the upper end of the driving rod 11 may be fixedly connected with or disconnected from the main beam 1, the lower end of the driving rod 11 is provided with a flange 13, and the flange 13 is connected with the power mechanism through a bolt; the bottom of the main beam 1 is provided with a ribbed plate 14 connected with the upper end of the support plate 12, and the drive rod 11 is provided with a boss 15 connected with the lower end of the support plate 12.
As shown in fig. 1 and 2, the supporting plate 12 may have a triangular structure;
the support plate 12 may have lightening holes 16 therein;
at least two support plates 12 are arranged, and all the support plates 12 are circumferentially distributed by taking the central shaft of the driving rod 11 as a circle center; in this embodiment, the support plate 12 is provided in two pieces.
As shown in fig. 1 and 2, the power mechanism may be an electromagnetic repulsion mechanism, such as, but not limited to, a structure including a closing coil 17, an opening coil 18, and a repulsion disc 19; wherein,
the repulsive disc 19 is connected to the driving part 10;
the closing coil 17 is arranged below the repulsive force disc 19 and is used for being electrified to generate an upward electromagnetic repulsive force on the repulsive force disc 19, so that the main beam 1 is driven to move upwards through the driving part 10, and the corresponding movable contact 6 is driven to move to be abutted against the fixed contact 5 through the connecting rod part 4, so that the vacuum arc extinguish chamber is closed;
the opening coil 18 is disposed above the repulsive disc 19 and is used for being energized to generate a downward electromagnetic repulsive force on the repulsive disc 19, so as to drive the main beam 1 to move downward through the driving part 10, and further drive the corresponding movable contact 6 to move downward through the connecting rod part 4 to be separated from the fixed contact 5, so as to open the vacuum interrupter.
Specifically, the closing coil 17 and the opening coil 18 are both directly or indirectly connected to the housing, and the closing coil 17, the opening coil 18 and the repulsive disc 19 are coaxially arranged.
More specifically, after the closing coil 17 is powered on, an electromagnetic field generated by the closing coil 17 induces an eddy current in the repulsive disc 19, and the electromagnetic field generated by the eddy current interacts with the electromagnetic field generated by the closing coil 17 to make the repulsive disc 19 receive an upward electromagnetic repulsive force; similarly, when the opening coil 18 is energized, the repulsive disc 19 is subjected to a downward electromagnetic repulsive force. Further specifically, the electromagnetic repulsion mechanism is adopted as the power mechanism, so that the power mechanism has the advantages of short response time, high rigid division speed, simple structure and the like, and is beneficial to quickly isolating and clearing the power grid fault.
As shown in fig. 1, 2 and 5, the synchronized linked fast switch may further comprise at least one bistable mechanism 20; wherein,
the driving part 10 is provided with a first station corresponding to the opening and closing of the switching part 3 and a second station corresponding to the closing of the switching part 3 in the moving process;
the bistable mechanism 20 is configured to apply a holding force to the driving unit 10 or the repulsive disc 19, so as to hold the position of the driving unit 10 when the driving unit 10 is located at the first station or the second station, thereby achieving the purpose of holding the state of the switching unit 3 when the switching unit 3 is located at the opening state or the closing state, and improving the stability of opening and closing. In this embodiment, the bistable mechanism 20 may include a spring 21, a slide rod 22, and a steady-state rod 23; wherein,
the slide bar 22 is slidably connected to the housing;
one end of the steady-state rod 23 is hinged on the driving rod 11;
the other end of the steady-state rod 23 is hinged to one end of the sliding rod 22;
one end of the spring 21 is fixed to the housing, and the other end of the spring 21 abuts against the other end of the slide rod 22. Specifically, during the switching-off or switching-on process, the driving rod 11 moves up and down, at this time, the spring 21 is compressed, and when the driving rod 11 moves up to a certain position, the spring 21 keeps the driving rod 11 at a position through the sliding rod 22 and the steady-state rod 23, and further keeps the switching component 3 at a switching-on state through the main beam 1; when the driving rod 11 moves downwards to a proper position, the spring 21 keeps the driving rod 11 at a certain position through the sliding rod 22 and the stable rod 23, and further keeps the switch component 3 in a switching-off state through the main beam 1, so that the switching-off and switching-on stability is improved.
More specifically, the bistable mechanism 20 may also be a bistable disc spring, an outer peripheral portion of the bistable disc spring is fixedly disposed on the housing, and an inner peripheral portion of the bistable spring 21 is connected to the driving rod 11; the bistable mechanism 20 has various implementations, which are not illustrated in the embodiment.
As shown in fig. 1 and 2, the synchronous linkage quick switch further comprises at least one buffer device 24 disposed below the main beam 1 and configured to abut against the lower end of the main beam 1 when the main beam 1 moves downward to a proper position; in the present embodiment, there are 2 buffering devices 24, and the buffering devices 24 may be, but are not limited to, spring buffers.
Example two
As shown in fig. 3 and 4, another synchronous linkage fast switch comprises a main beam 1, a driving device 2, at least two switch components 3 and connecting rod components 4 corresponding to the switch components 3 one by one; wherein,
one end part of the connecting rod part 4 is connected with the corresponding switch part 3;
the other end of the connecting rod part 4 is connected to the main beam 1;
the driving device 2 is connected with the main beam 1 and is used for acting to drive the main beam 1 to move, so as to drive the connecting rod part 4 to move synchronously, so that the connecting rod part 4 drives the corresponding switch part 3 to open or close. Specifically, through main beam 1 has realized the mechanical type linkage of all connecting rod parts 4, makes all switching part 3 can divide the floodgate or close the floodgate in step, is favorable to improving the uniformity of three-phase divide-shut brake, can also reduce holistic volume, reduces occupation space to manufacturing cost has been reduced. Further specifically, the main beam 1 is horizontally arranged, the main beam 1 is made of a material with high specific strength, the cross section of the main beam 1 is of an I-shaped structure, and reinforcing ribs are further arranged on the main beam 1, so that the rigidity of the main beam 1 can be improved, all the connecting rod parts 4 can be ensured to synchronously act, and all the switch parts 3 can be ensured to synchronously switch on and off; wherein, the lower end of the connecting rod part 4 is fixedly connected to the main beam 1. .
As shown in fig. 3 and 4, the switch component 3 may be a vacuum interrupter, and a fixed contact 5 and a movable contact 6 may be disposed in the vacuum interrupter;
one end of the connecting rod component 4 is connected with a moving contact 6 in a corresponding vacuum arc-extinguishing chamber, so that when the driving device 2 drives the main beam 1 and the connecting rod component 4 to move, the moving contact 6 is driven to move to abut against the static contact 5 or the moving contact 6 is driven to move to be separated from the static contact 5; specifically, when the moving contact 6 abuts against the fixed contact 5, the vacuum arc-extinguishing chamber is in a closing state, and when the moving contact 6 is separated from the fixed contact 5, the vacuum arc-extinguishing chamber is in an opening state. In this embodiment, there are 3 vacuum arc-extinguishing chambers, the static contact 5 is disposed above the moving contact 6, and the top of the connecting rod component 4 is connected to the bottom of the moving contact 6.
As shown in fig. 3 and 4, the driving device 2 may include at least one driving mechanism, such as, but not limited to, a structure including a power mechanism and a driving part 10; wherein,
one end of the driving part 10 is connected with the main beam 1;
the power mechanism is connected with the other end of the driving part 10 and is used for acting to drive the driving part 10 and the main beam 1 to move.
Specifically, the synchronous linkage quick switch can further comprise a shell; wherein,
the driving part 10 is connected to the shell in a sliding way;
the main beam 1 is connected to the upper end part of the driving part 10;
the power mechanism is connected with the lower end part of the driving part 10; specifically, a guide sleeve is arranged on the shell, and the driving part 10 is slidably connected in the guide sleeve and is slidably connected to the shell through the guide sleeve.
As shown in fig. 3 and 4, in this embodiment, two driving mechanisms are provided, and compared with a scheme in the prior art in which three driving mechanisms respectively control opening and closing of 3 vacuum arc-extinguishing chambers, the number of parts is reduced in this embodiment, and manufacturing cost is effectively reduced. Specifically, the driving part 10 is a driving rod 11, the upper end of the driving rod 11 may be fixedly connected to the main beam 1 or may be hinged to the main beam, the lower end of the driving rod 11 is provided with a flange 13, and the flange 13 is connected to the power mechanism through a bolt.
As shown in fig. 3 and 4, the power mechanism may be an electromagnetic repulsion mechanism, such as, but not limited to, a structure including a closing coil 17, an opening coil 18, and a repulsion disc 19; wherein,
the repulsive disc 19 is connected to the driving part 10;
the closing coil 17 is arranged below the repulsive force disc 19 and is used for being electrified to generate an upward electromagnetic repulsive force on the repulsive force disc 19, so that the main beam 1 is driven to move upwards through the driving part 10, and the corresponding movable contact 6 is driven to move to be abutted against the fixed contact 5 through the connecting rod part 4, so that the vacuum arc extinguish chamber is closed;
the opening coil 18 is disposed above the repulsive disc 19 and is used for being energized to generate a downward electromagnetic repulsive force on the repulsive disc 19, so as to drive the main beam 1 to move downward through the driving part 10, and further drive the corresponding movable contact 6 to move downward through the connecting rod part 4 to be separated from the fixed contact 5, so as to open the vacuum interrupter.
Specifically, the closing coil 17 and the opening coil 18 are both directly or indirectly connected to the housing, and the closing coil 17, the opening coil 18 and the repulsive disc 19 are coaxially arranged.
More specifically, after the closing coil 17 is powered on, an electromagnetic field generated by the closing coil 17 induces an eddy current in the repulsive disc 19, and the electromagnetic field generated by the eddy current interacts with the electromagnetic field generated by the closing coil 17 to make the repulsive disc 19 receive an upward electromagnetic repulsive force; similarly, when the opening coil 18 is energized, the repulsive disc 19 is subjected to a downward electromagnetic repulsive force. Further specifically, the electromagnetic repulsion mechanism is adopted as the power mechanism, so that the power mechanism has the advantages of short response time, high rigid division speed, simple structure and the like, and is beneficial to quickly isolating and clearing the power grid fault.
As shown in fig. 3, 4 and 5, the synchronized linked fast switch may further comprise at least one bistable mechanism 20; wherein,
the driving part 10 is provided with a first station corresponding to the opening and closing of the switching part 3 and a second station corresponding to the closing of the switching part 3 in the moving process;
the bistable mechanism 20 is configured to apply a holding force to the driving unit 10 or the repulsive disc 19, so as to hold the position of the driving unit 10 when the driving unit 10 is located at the first station or the second station, thereby achieving the purpose of holding the state of the switching unit 3 when the switching unit 3 is located at the opening state or the closing state, and improving the stability of opening and closing. In this embodiment, the bistable mechanism 20 may include a spring 21, a slide rod 22, and a steady-state rod 23; wherein,
the slide bar 22 is slidably connected to the housing;
one end of the steady-state rod 23 is hinged on the driving rod 11;
the other end of the steady-state rod 23 is hinged to one end of the sliding rod 22;
one end of the spring 21 is fixed to the housing, and the other end of the spring 21 abuts against the other end of the slide rod 22. Specifically, during the switching-off or switching-on process, the driving rod 11 moves up and down, at this time, the spring 21 is compressed, and when the driving rod 11 moves up to a certain position, the spring 21 keeps the driving rod 11 at a position through the sliding rod 22 and the steady-state rod 23, and further keeps the switching component 3 at a switching-on state through the main beam 1; when the driving rod 11 moves downwards to a proper position, the spring 21 keeps the driving rod 11 at a certain position through the sliding rod 22 and the stable rod 23, and further keeps the switch component 3 in a switching-off state through the main beam 1, so that the switching-off and switching-on stability is improved.
More specifically, the bistable mechanism 20 may also be a bistable disc spring, an outer peripheral portion of the bistable disc spring is fixedly disposed on the housing, and an inner peripheral portion of the bistable spring 21 is connected to the driving rod 11; the bistable mechanism 20 has various implementations, which are not illustrated in the embodiment.
As shown in fig. 3 and 4, the synchronous linked fast switch further comprises at least one buffer device 24 disposed below the main beam 1 and configured to abut against the lower end of the main beam 1 when the main beam 1 moves downward to a proper position; in this embodiment, the buffer device 24 is provided with 3 buffer devices and connected to the housing, and the buffer device 24 may be, but is not limited to, a spring buffer.
The working principle of the invention is as follows:
the driving device 2 drives the main beam 1 to move horizontally, and then the main beam 1 drives all the connecting rod parts 4 to move synchronously, so that mechanical linkage action of all the connecting rod parts 4 is realized, all the vacuum arc extinguish chambers can be synchronously opened or closed, the consistency of three-phase opening and closing is improved, the whole size can be reduced, the occupied space is reduced, and the manufacturing cost is reduced. The driving device 2 is provided with the electromagnetic repulsion mechanism, so that the response time can be greatly shortened, the rigid switching-off speed can be improved, the rapid isolation and clearing of the power grid fault can be facilitated, and the stability of switching-off and switching-on can be improved by the bistable mechanism 20.
The above embodiments are described in further detail to solve the technical problems, technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (10)
1. A synchronous linkage quick switch is characterized by comprising a main beam (1), a driving device (2), at least two switch components (3) and connecting rod components (4) which are in one-to-one correspondence with the switch components (3); wherein,
one end part of the connecting rod part (4) is connected with the corresponding switch part (3);
the other end of the connecting rod component (4) is connected to the main beam (1);
the driving device (2) is connected with the main beam (1) and used for acting to drive the main beam (1) to move, and further drives the connecting rod part (4) to move synchronously, so that the connecting rod part (4) drives the corresponding switch part (3) to be switched on or switched off.
2. The synchronized linked quick switch of claim 1,
the switch component (3) is a vacuum arc extinguish chamber, and a static contact (5) and a moving contact (6) are arranged in the vacuum arc extinguish chamber;
one end of the connecting rod component (4) is connected with a moving contact (6) in the corresponding vacuum arc-extinguishing chamber, so that when the driving device (2) drives the main beam (1) and the connecting rod component (4) to move, the moving contact (6) is driven to move to abut against the static contact (5) or the moving contact (6) is driven to move to be separated from the static contact (5).
3. A synchronized and linked quick switch according to claim 1, characterised in that said driving means (2) comprise at least one driving mechanism comprising a power mechanism and a driving member (10); wherein,
one end part of the driving part (10) is connected with the main beam (1);
the power mechanism is connected with the other end of the driving part (10) and is used for acting to drive the driving part (10) and the main beam (1) to move.
4. The synchronized ganged quick switch of claim 3, further comprising a housing; wherein,
the driving part (10) is connected to the shell in a sliding mode;
the main beam (1) is connected to the upper end part of the driving part (10);
the power mechanism is connected with the lower end part of the driving part (10).
5. A synchronized and linked quick switch according to claim 3, characterised in that said driving means (10) comprise a driving rod (11) and at least one supporting plate (12); wherein,
the lower end part of the driving rod (11) is connected with the power mechanism;
the lower end of the supporting plate (12) is connected with the driving rod (11), and the upper end of the supporting plate (12) is connected with the main cross beam (1).
6. A synchronized and linked quick switch according to claim 5, characterised in that said support plate (12) is of triangular configuration and/or in that said support plate (12) is provided with lightening holes (16).
7. The fast switch of claim 5, characterized in that said support plates (12) are provided in at least two pieces, all said support plates (12) being circumferentially distributed around the central axis of said driving rod (11).
8. The fast switch of the synchronous linkage according to claim 3, wherein the power mechanism is an electromagnetic repulsion mechanism, the electromagnetic repulsion mechanism comprises a closing coil (17), an opening coil (18) and a repulsion disc (19); wherein,
the repulsion disc (19) is connected with the driving part (10);
the closing coil (17) is arranged below the repulsive force disc (19) and is used for being electrified to generate an upward electromagnetic repulsive force on the repulsive force disc (19), and then the main beam (1) is driven to move upwards through the driving part (10);
the opening coil (18) is arranged above the repulsive force disc (19) and is used for electrifying to generate downward electromagnetic repulsive force on the repulsive force disc (19), and the main beam (1) is driven to move downwards through the driving part (10).
9. A synchronized and linked fast switch according to claim 8, characterized in that it further comprises at least one bistable mechanism (20); wherein,
the driving part (10) is provided with a first station corresponding to the opening and closing of the switching part (3) and a second station corresponding to the closing of the switching part (3) in the moving process;
the bistable mechanism (20) is configured to apply a holding force to the drive member (10) or the repulsive disc (19) to hold the position of the drive member (10) when the drive member (10) is in the first or second position.
10. A synchronized speed switch according to claim 1, further comprising at least one damping means (24) provided below said main beam (1) and adapted to abut against the lower end of said main beam (1) when said main beam (1) is moved downwardly into position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010661017.7A CN111696823A (en) | 2020-07-10 | 2020-07-10 | Synchronous linked fast switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010661017.7A CN111696823A (en) | 2020-07-10 | 2020-07-10 | Synchronous linked fast switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111696823A true CN111696823A (en) | 2020-09-22 |
Family
ID=72485777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010661017.7A Pending CN111696823A (en) | 2020-07-10 | 2020-07-10 | Synchronous linked fast switch |
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| Country | Link |
|---|---|
| CN (1) | CN111696823A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259407A (en) * | 2020-09-30 | 2021-01-22 | 西安交通大学 | Three-phase linkage on-off transmission retaining device of high-voltage rapid vacuum switch and working method |
| CN113241291A (en) * | 2021-05-08 | 2021-08-10 | 安徽工业大学 | Novel bistable air switch with self-resetting function and self-resetting method |
| CN113394047A (en) * | 2021-06-15 | 2021-09-14 | 西安西电开关电气有限公司 | Quick switch assembly |
| CN113675047A (en) * | 2021-08-12 | 2021-11-19 | 常州博瑞电力自动化设备有限公司 | Compact electromagnetic repulsion force operating mechanism and three-phase switch using same |
-
2020
- 2020-07-10 CN CN202010661017.7A patent/CN111696823A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259407A (en) * | 2020-09-30 | 2021-01-22 | 西安交通大学 | Three-phase linkage on-off transmission retaining device of high-voltage rapid vacuum switch and working method |
| CN113241291A (en) * | 2021-05-08 | 2021-08-10 | 安徽工业大学 | Novel bistable air switch with self-resetting function and self-resetting method |
| CN113241291B (en) * | 2021-05-08 | 2022-08-30 | 安徽工业大学 | Bistable air switch with self-resetting function and self-resetting method |
| CN113394047A (en) * | 2021-06-15 | 2021-09-14 | 西安西电开关电气有限公司 | Quick switch assembly |
| CN113394047B (en) * | 2021-06-15 | 2022-11-22 | 西安西电开关电气有限公司 | Quick switch assembly |
| CN113675047A (en) * | 2021-08-12 | 2021-11-19 | 常州博瑞电力自动化设备有限公司 | Compact electromagnetic repulsion force operating mechanism and three-phase switch using same |
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