CN109065402B - Outdoor secondary fuses built-in intelligent post of isolation sword switch - Google Patents
Outdoor secondary fuses built-in intelligent post of isolation sword switch Download PDFInfo
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- CN109065402B CN109065402B CN201810999098.4A CN201810999098A CN109065402B CN 109065402 B CN109065402 B CN 109065402B CN 201810999098 A CN201810999098 A CN 201810999098A CN 109065402 B CN109065402 B CN 109065402B
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- breaker
- isolating
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- opening
- torsion
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- 238000002955 isolation Methods 0.000 title claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 238000004146 energy storage Methods 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 26
- 238000004806 packaging method and process Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims description 39
- 210000000078 claw Anatomy 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 230000004927 fusion Effects 0.000 claims description 7
- 230000000750 progressive effect Effects 0.000 claims description 7
- 238000012806 monitoring device Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
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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
- H01H33/008—Pedestal mounted switch gear combinations
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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
- H01H33/027—Integrated apparatus for measuring current or voltage
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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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
-
- 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
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
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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
- H01H33/42—Driving mechanisms
-
- 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
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an outdoor secondary integration isolating knife built-in intelligent column switch, which comprises an aluminum alloy base and an aluminum alloy housing matched with the aluminum alloy base, wherein the aluminum alloy housing is enclosed to form an outer packaging box when buckled on the aluminum alloy base, a plurality of isolating knife main loop transmission structures are arranged in the outer packaging box, a left current sensor is arranged at the inner end of a left outgoing line terminal, and a right current sensor is arranged at the inner end of a right outgoing line terminal; the inner end part of the outer packaging box is provided with a hollow cavity, a power operation mechanism is arranged in the hollow cavity, the power operation mechanism comprises a front panel and a rear panel, a component installation cavity is formed between the front panel and the rear panel, and an isolation power mechanism for controlling an isolation knife to be opened and closed, a circuit breaker power mechanism for controlling a circuit breaker to be opened and closed and a circuit breaker closing energy storage mechanism for storing energy for closing the circuit breaker are arranged in the component installation cavity; the whole power operating mechanism which independently or simultaneously provides a power source for the action of the breaker and the isolating knife is realized.
Description
Technical Field
The invention belongs to the technical field of pole-mounted switches, and particularly relates to an intelligent pole-mounted switch with an outdoor secondary fusion isolating knife.
Background
At present, an outdoor pole switch is mainly ZW32 type, ZW20 type and FZW type, wherein the ZW32 type and the ZW20 type are outdoor pole breakers, and isolation knives are arranged externally; FZW28 the type is an outdoor load switch, and the isolating knife is arranged inside. The pole switch belongs to primary equipment in the power distribution network, directly acts on the power transmission line, and is also provided with monitoring equipment, control equipment and the like, and the equipment is called secondary equipment in order to enable the power distribution network to work better. Although the primary equipment and the secondary equipment are combined to function, intelligent power distribution can be realized through modern technology, interfaces among the equipment are not matched, compatibility, expansibility and interchangeability are poor, and the complete intelligent power distribution is difficult to realize.
Disclosure of Invention
The invention aims to provide an intelligent pole-mounted switch with an outdoor secondary fusion isolation knife; the technical scheme adopted for achieving the purpose is as follows:
an outdoor secondary integration isolating knife built-in intelligent column switch comprises an aluminum alloy base and an aluminum alloy housing matched with the aluminum alloy base, wherein an outer packaging box is formed by enclosing the aluminum alloy housing when the aluminum alloy housing is buckled on the aluminum alloy base, a plurality of isolating knife main loop transmission structures are arranged in the outer packaging box in parallel and in series, a left wire outlet terminal which extends out of the outer packaging box leftwards is arranged at the left end of the isolating knife main loop transmission structure, a right wire outlet terminal which extends out of the outer packaging box rightwards is arranged at the right end of the isolating knife main loop transmission structure, a left voltage sensor for measuring the voltage of the left wire outlet terminal and a right voltage sensor for measuring the voltage of the right wire outlet terminal are arranged on the isolating knife main loop transmission structure, a left current sensor is arranged at the inner end of the left wire outlet terminal, and a right current sensor is arranged at the inner end of the right wire outlet terminal;
the isolating knife main loop transmission structure comprises an insulating box, a left wire outlet used for left wire outlet is arranged at the left end of the insulating box, a right wire outlet used for right wire outlet is arranged at the right end of the insulating box, a left conductive piece is arranged in the left wire outlet, a right conductive piece is arranged in the right wire outlet, an isolating knife is arranged between the left wire outlet and the right wire outlet, the isolating knife comprises a knife holder, a rotary knife switch and a knife switch contact, the knife holder and the knife switch contact are all fixed in the insulating box, the knife switch contact is electrically connected with the right conductive piece, a circuit breaker is fixed in the insulating box, a fixed contact of the circuit breaker is electrically connected with the left conductive piece, a moving contact of the circuit breaker is electrically connected with the rotary knife switch through a soft conductive piece, and an insulating pull rod which is coaxially connected with the moving contact and used for driving the moving contact to move is arranged in the insulating box;
the left outgoing line terminal is spliced in the left outgoing line port, the right outgoing line terminal is spliced in the right outgoing line port, the left voltage sensor is electrically connected with the left conductive piece, and the right voltage sensor is electrically connected with the right conductive piece;
the rotary knife switch is hinged with the knife rest through a hinge shaft, a first power shaft is fixed on the rotary knife switch, and the first power shaft and the hinge shaft are coaxially arranged; the first power shafts of the transmission structures of the main loops of the isolating knives are integrally formed and coaxially arranged to form the same first power shaft;
the driving device comprises a base, a second power shaft is rotationally connected to the base, a swinging piece is fixed on the second power shaft, a connecting rod is arranged between the swinging piece and the free end of the insulating pull rod, and two ends of the connecting rod are hinged with the swinging piece and the free end of the insulating pull rod respectively; the second power shafts of the transmission structure of the main circuit of each isolation knife are integrally formed and coaxially arranged, namely the same second power shaft;
the inner end part of the outer packaging box is provided with a hollow cavity, a power operation mechanism is arranged in the hollow cavity, the power operation mechanism comprises a front panel and a rear panel, a component installation cavity is formed between the front panel and the rear panel, and an isolation power mechanism for controlling an isolation knife to be connected with or disconnected from the component installation cavity, a circuit breaker power mechanism for controlling a circuit breaker to be connected with or disconnected from the component installation cavity and a circuit breaker closing energy storage mechanism for circuit breaker closing energy storage are arranged in the component installation cavity;
the isolating power mechanism comprises an isolating switch torsion column and an isolating main shaft which is coaxially and fixedly connected with a first power shaft, wherein two ends of the isolating main shaft are respectively and rotatably connected with a front panel and a rear panel, a first isolating swing arm and a second isolating swing arm are fixed on the isolating main shaft, an isolating transmission arm is fixed on the isolating switch torsion column, a strip-shaped sliding groove is arranged on the isolating transmission arm, an isolating sliding shaft is slidably connected in the strip-shaped sliding groove, the isolating sliding shaft is fixedly connected with the first isolating swing arm, an isolating connecting column is rotatably connected in a component mounting cavity, a perforation is arranged on the isolating connecting column, an isolating guide column is slidably connected in the perforation, and the tail end of the isolating guide column is hinged with the second isolating swing arm;
the breaker power mechanism comprises a breaker opening energy storage mechanism and a breaker main shaft which is coaxially and fixedly connected with a second power shaft, wherein two ends of the breaker main shaft are respectively connected with a front panel and a rear panel in a rotating way, a three-claw crank arm is fixedly arranged on the breaker main shaft and comprises a first extending claw, a second extending claw and a third extending claw, a breaker guide post is hinged on the first extending claw, a breaker limit sleeve is fixedly arranged in a component mounting cavity, the breaker guide post is positioned in the breaker limit sleeve and is in sliding connection with the breaker limit sleeve, and a breaker opening energy storage pressure spring is sleeved on the breaker guide post;
the breaker opening energy storage mechanism comprises a breaker opening detent and a breaker opening torsion column, the breaker opening detent and the breaker opening torsion column are both rotationally connected with the front panel and the rear panel, the breaker opening detent comprises a first opening swing arm and a second opening swing arm, when the three-claw turning arm rotates, the second extending claw pushes the first opening swing arm to rotate so that the second opening swing arm is lapped on the breaker opening torsion column to complete breaker closing and breaker opening energy storage, and when the breaker opening torsion column rotates, the second opening swing arm is separated from the breaker opening torsion column to complete breaker opening;
the breaker closing energy storage mechanism comprises an energy storage unit and a cam, wherein the cam is driven to rotate when the energy storage unit releases mechanical energy, and the cam rotates to push the third extending claw to rotate in the process of pushing the third extending claw to drive the breaker main shaft to rotate so as to complete breaker closing and breaker opening energy storage.
Preferably, a locking mechanism is arranged between the isolation power mechanism and the breaker power mechanism, the locking mechanism comprises a locking crank arm fixed on a main shaft of the breaker, and a locking plate is fixed on the locking crank arm; when the main shaft of the circuit breaker rotates to switch on the circuit breaker, the locking crank arm rotates towards the direction of the isolating main shaft, so that the interlocking plate clamps the first isolating swing arm; when the main shaft of the circuit breaker reversely rotates to switch off the circuit breaker, the locking crank arm reversely rotates, so that the interlocking plate is separated from the first isolation swing arm.
Preferably, the energy storage unit comprises a breaker closing latch, a breaker closing torsion column, a transmission mechanism and a cam; the driving mechanism comprises a driving rotating shaft and a driven rotating shaft, two ends of the driving rotating shaft and two ends of the driven rotating shaft are respectively connected with a front panel and a rear panel in a rotating mode, the cam is fixed on the driven rotating shaft, a driving pinion is fixed on the driving rotating shaft, a driven large gear meshed with the driving pinion is fixed on the driven rotating shaft, a round wheel is rotationally connected on the driven rotating shaft, a circumferential progressive opening is formed in the circumferential edge of the round wheel, a jack post is fixed on the round wheel, a clutch crank arm is fixed on the driven large gear, a clutch post is fixed in a component mounting cavity beside the driven large gear, an energy storage crank arm is rotationally connected on the driven rotating shaft, and a breaker closing energy storage tension spring is connected on the energy storage crank arm; when the driven large gear rotates, the clutch crank arm is propped against the circumferential progressive opening to push the round wheel to rotate until the jacking column is propped against the bottom of the breaker closing pawl, so that the top of the breaker closing pawl is lapped on the breaker closing torsion column to finish breaker closing energy storage, when the breaker closing torsion column rotates, the breaker closing pawl is separated from the breaker closing torsion column, and the third extending claw is pushed to rotate in the cam rotating process so as to drive the breaker main shaft to rotate to finish breaker closing and breaker opening energy storage.
Preferably, torsion springs are respectively sleeved on the breaker closing torsion column and the breaker opening torsion column, a breaker closing pulling piece is fixed on the breaker closing torsion column, a breaker opening pulling piece is fixed on the breaker opening torsion column, a breaker opening Guan Niuzhu is installed in the component installation cavity, a pulling arm is fixed on the breaker opening torsion column, and when the breaker opening torsion column is twisted positively and negatively, the pulling arm pulls the breaker closing pulling piece or the breaker opening pulling piece to rotate.
Preferably, the rotation of the driving rotating shaft is performed by a manual or servo motor to provide a power source; the rotation of the breaker switch torsion column is performed through a manual or electric release to provide a power source.
Preferably, a brake-separating limiting swing arm is fixed on a brake-separating pawl of the circuit breaker, and a brake-separating limiting column which is matched with the brake-separating limiting swing arm is installed in the component installation cavity.
Preferably, the forward and reverse torsion range of the isolating switch torsion column is 45 degrees, the forward and reverse torsion range of the second isolating swing arm is driven to be 90 degrees, and the second isolating swing arm spans the connecting line position between the connecting column and the isolating main shaft during forward and reverse torsion.
Preferably, a monitoring device for observing the operating state of the isolating knife is arranged in the outer packaging box.
Preferably, the insulation box comprises a first insulation box and a second insulation box, a left wire outlet is arranged on the first insulation box, a right wire outlet is arranged on the second insulation box, and a left conductive piece, a circuit breaker, an insulation pull rod, a knife holder and a rotary knife switch are coated in the first insulation box; the disconnecting link contact and the right conductive piece are covered in the second insulation box.
The invention has the beneficial effects that: (1) The main loop transmission structures such as the isolation knife and the arc extinguishing chamber are arranged in the insulation box, so that the insulation distance in the structure is shortened, the electric field intensity is uniformly distributed, the overall miniaturization design is facilitated, the overall bare leakage of the main loop transmission structures outside the environment is avoided, and the main loop transmission structures are beneficial to safe and reliable long-term operation in a power grid. Further, in order to avoid the generation of leakage current, an obvious air break is required, and the insulation boxes are designed as a first insulation box and a second insulation box, so that the corresponding portions are wrapped in the corresponding insulation boxes.
(2) The outer packaging box and the insulation box are arranged in two layers, the whole box type structure is provided with an internal isolation knife and a voltage/current sensor, the main transmission is in linear arrangement, the field intensity of an electric field is uniform, the vacuum arc-extinguishing chamber is adopted in the arc-extinguishing chamber, and the insulation medium is in environment-friendly gas insulation. The conductive extension connecting part reduces an air layer, increases the length and is far away from the wall penetrating distance, so that the local discharge capacity of the whole machine is smaller than 20PC.
(3) The isolation power mechanism controls the isolation knife and the switch, and the breaker power mechanism controls the on and off of the breaker, so that the isolation knife and the switch can be independently operated and interlocked with each other, and the working reliability is high; when the breaker is in a closing state, the isolating knife is automatically locked and cannot be operated, so that the overall safety performance is greatly improved; the isolation power mechanism and the breaker power mechanism are integrally designed, so that the isolation power mechanism is small in overall size, simple in structure and convenient to install; the pole-mounted switch circuit breaker and the isolating knife are independently or simultaneously provided with a power source, and the isolating knife is provided with an integrated power operating mechanism.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the brake release in the direction A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the valve in FIG. 1 taken along the direction A-A;
FIG. 4 is a schematic diagram of the power operated mechanism;
FIG. 5 is a rear view of FIG. 4;
FIG. 6 is a schematic structural view of the locking mechanism;
fig. 7 is a schematic structural view of a three-jaw lever.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the invention comprises an aluminum alloy base 11 and an aluminum alloy housing 13 matched with the aluminum alloy base 11, when the aluminum alloy housing 13 is buckled on the aluminum alloy base 11, the aluminum alloy housing 13 and the aluminum alloy base 11 are enclosed to form an outer packaging box 1, a rubber sealing ring can be arranged between the aluminum alloy housing 13 and the aluminum alloy base 11, a plurality of isolation knife main loop transmission structures are arranged in parallel and in series in the outer packaging box 1, a left outgoing line terminal 3 which extends leftwards from the outer packaging box 1 is arranged at the left end of the isolation knife main loop transmission structure, a right outgoing line terminal 7 which extends rightwards from the outer packaging box 1 is arranged at the right end of the isolation knife main loop transmission structure, a left voltage sensor 15 for measuring the voltage of the left outgoing line terminal 3 and a right voltage sensor 16 for measuring the voltage of the right outgoing line terminal 7 are arranged on the isolation knife main loop transmission structure, a left current sensor 14 is arranged at the inner end of the left outgoing line terminal 3, a right current sensor 6 is arranged at the inner end of the right outgoing line terminal 7, wherein one left current sensor 14 can also be arranged to carry out the measurement on all the isolation knife main loop transmission structures, and all the isolation knife main transmission structures can be arranged at the left outgoing line terminals 3 and the right current sensor 7 are arranged;
the isolating knife main loop transmission structure comprises an insulating box 28, a left wire outlet 12 for left wire outlet is arranged at the left end of the insulating box 28, a right wire outlet 19 for right wire outlet is arranged at the right end of the insulating box 28, a left conductive piece 14 is arranged in the left wire outlet 12, a right conductive piece 17 is arranged in the right wire outlet 19, an isolating knife is arranged between the left wire outlet 12 and the right wire outlet 19, the isolating knife comprises a knife holder (not numbered in the figure), a rotary knife switch 9 and a knife switch contact 18, the knife holder and the knife switch contact 18 are both fixed in the insulating box 28, the knife switch contact 18 is electrically connected with the right conductive piece 17, an arc extinguishing chamber 27 is fixed in the insulating box 28, a fixed contact 26 of the arc extinguishing chamber 27 is electrically connected with the left conductive piece 14 through a hard conductive piece 29, a moving contact 25 of the arc extinguishing chamber 27 is electrically connected with the rotary knife switch 9 through a soft conductive piece 24, and an insulating pull rod 23 which is coaxially connected with the moving contact 25 and is used for driving the moving contact 25 to move is arranged in the insulating box 28; the left outgoing line terminal 3 is inserted in the left outgoing line port 12, the right outgoing line terminal 7 is inserted in the right outgoing line port 19, the left voltage sensor 15 is electrically connected with the left conductive member 14, and the right voltage sensor 16 is electrically connected with the right conductive member 17.
The rotary knife switch 9 is hinged with the knife rest through a hinge shaft, a first power shaft 10 is fixed on the rotary knife switch 9, and the first power shaft 10 is coaxially arranged with the hinge shaft; the first power shafts 10 of each isolation knife main loop transmission structure are integrally formed and coaxially arranged, namely the same first power shaft 10; the device is characterized by further comprising a driving device for driving the insulating pull rod 23 to move, wherein the driving device comprises a base 21, a second power shaft 8 is rotatably connected to the base 21, a swinging piece 20 is fixed to the second power shaft 8, a connecting rod 22 is arranged between the swinging piece 20 and the free end of the insulating pull rod 23, and two ends of the connecting rod 22 are hinged with the swinging piece 20 and the free end of the insulating pull rod 23 respectively; the second power shafts 8 of the transmission structure of the main circuit of each isolation knife are integrally formed and coaxially arranged, namely the same second power shaft 8.
Further, in order to avoid the occurrence of leakage current, a significant air break is required, the insulation box 23 includes a first insulation box and a second insulation box, the left outlet 12 is disposed on the first insulation box, the right outlet 19 is disposed on the second insulation box, and the left conductive member 14, the arc extinguishing chamber 27, the insulation pull rod 23, the tool holder and the rotary knife switch 9 are enclosed in the first insulation box; the disconnecting link contact 18 and the right conductive member 17 are enclosed in a second insulating housing.
A cavity chamber 2 for placing a power operation mechanism is arranged in the outer packaging box 1, and the power operation mechanism provides a power source for the rotation of the first power shaft 10 and the second power shaft 8, so that the whole is miniaturized and intelligent. On the other hand, a monitoring device 5 for observing the operating state of the isolating blade is provided in the outer casing 1, and whether the isolating blade is opened or closed can be clearly seen.
When the invention is used, as shown in fig. 1 and 2, the power operation mechanism has the function of controlling the first power shaft 10 and the second power shaft 8 independently or simultaneously, and the specific power operation mechanism can be realized by adopting a device in the prior art or can be realized by independent design, and the power source part does not belong to the protection of the invention; when the switch-on is needed, the first power shaft 10 rotates clockwise to drive the rotary knife switch 9 to rotate clockwise to be closed with the knife switch contact 18, and finally the second power shaft 8 swings anticlockwise to drive the insulating pull rod 23 to move leftwards, so that the fixed contact 26 of the arc-extinguishing chamber 27 contacts with the moving contact 25 of the arc-extinguishing chamber 27 to form a conducting loop.
As shown in fig. 3, when the disconnecting operation is required, the second power shaft 8 swings clockwise to drive the insulating pull rod 23 to move rightward, so that the fixed contact 26 of the arc-extinguishing chamber 27 and the moving contact 25 of the arc-extinguishing chamber 27 are pulled apart to form a vacuum break arc-extinguishing, and finally the first power shaft 10 rotates counterclockwise to drive the rotary disconnecting link 9 to rotate counterclockwise to be separated from the disconnecting link contact 18, so that the on-circuit is in an off state.
The main loop transmission structures such as the isolation knife and the arc extinguishing chamber are arranged in the insulation box, so that the insulation distance in the structure is shortened, the electric field intensity is uniformly distributed, the overall miniaturization design is facilitated, the overall bare leakage of the main loop transmission structures outside the environment is avoided, and the main loop transmission structures are beneficial to safe and reliable long-term operation in a power grid. Further, in order to avoid the generation of leakage current, an obvious air break is required, and the insulation boxes are designed as a first insulation box and a second insulation box, so that the corresponding portions are wrapped in the corresponding insulation boxes.
The outer packaging box and the insulating box are arranged in two layers in an insulating way, the whole box type structure is provided with an internal isolating knife and a voltage/current sensor, the main transmission is in linear arrangement, the field intensity of an electric field is uniform, the vacuum arc-extinguishing chamber is adopted in the arc-extinguishing chamber, and the insulating medium is in environment-friendly gas insulation. The conductive extension connecting part reduces an air layer, increases the length and is far away from the wall penetrating distance, so that the local discharge capacity of the whole machine is smaller than 20PC.
As shown in fig. 4 to 7, the power operation mechanism comprises a front panel (not shown in the drawings) and a rear panel B13, a component mounting chamber is formed between the front panel and the rear panel B13, and an isolating power mechanism for controlling an isolating blade to be opened and closed, a circuit breaker power mechanism for controlling a circuit breaker to be opened and closed and a circuit breaker closing energy storage mechanism for storing the closing energy of the circuit breaker are mounted in the component mounting chamber;
the isolation power mechanism comprises an isolation switch torsion column B1 and an isolation main shaft B7, wherein two ends of the isolation main shaft B7 are respectively connected with a front panel and a rear panel B13 in a rotating way, a first isolation swing arm B8 and a second isolation swing arm B6 are fixed on the isolation main shaft B7, an isolation transmission arm B36 is fixed on the isolation switch torsion column B1, a strip-shaped sliding groove B9 is arranged on the isolation transmission arm B36, an isolation sliding shaft B5 is connected in a sliding way in the strip-shaped sliding groove B9, the isolation sliding shaft B5 is fixedly connected with the first isolation swing arm B8, an isolation connecting column B2 is connected in a rotating way in a component mounting cavity, a perforation is arranged on the isolation connecting column B2, an isolation guide column B3 is connected in a sliding way, the tail end of the isolation guide column B3 is hinged with the second isolation swing arm B6, and an isolation energy storage pressure spring B4 is sleeved on the isolation guide column B3;
the breaker power mechanism comprises a breaker opening energy storage mechanism and a breaker main shaft B34, two ends of the breaker main shaft B34 are respectively connected with a front panel and a rear panel B13 in a rotating way, a three-jaw crank arm is fixed on the breaker main shaft B34 and comprises a first extending jaw B35, a second extending jaw B29 and a third extending jaw B30, a breaker guide post B11 is hinged on the first extending jaw B35, a breaker limit sleeve B12 is fixed in a component mounting cavity, the breaker guide post B11 is positioned in the breaker limit sleeve B12 and is in sliding connection with the breaker limit sleeve B12, and a breaker opening energy storage pressure spring B10 is sleeved on the breaker guide post B11;
the breaker opening energy storage mechanism comprises a breaker opening detent B14 and a breaker opening torsion column B15, the breaker opening detent B14 and the breaker opening torsion column B15 are both in rotary connection with a front panel and a rear panel B13, the breaker opening detent B14 comprises a first opening swing arm B44 and a second opening swing arm B43, when a three-claw turning arm rotates, a second extending claw B29 pushes the first opening swing arm B44 to rotate so that the second opening swing arm B43 is lapped on the breaker opening torsion column B15 to complete breaker closing and breaker opening energy storage, when the breaker opening torsion column B15 rotates, the second opening swing arm B43 is separated from the breaker opening torsion column B15, and the three-claw turning arm reversely rotates to complete breaker opening;
the breaker closing energy storage mechanism comprises an energy storage unit and a cam, wherein the cam is driven to rotate when the energy storage unit releases mechanical energy, and the cam rotates to push the third extending claw to rotate in the process of pushing the third extending claw to drive the breaker main shaft to rotate so as to complete breaker closing and breaker opening energy storage.
In order to realize that the isolating knife is locked with the switch to meet the requirement of working safety after the breaker is switched on, a locking mechanism is arranged between the isolating power mechanism and the breaker power mechanism and comprises a locking crank arm B39 fixed on a main shaft B34 of the breaker, and a linkage plate B40 is fixed on the locking crank arm B39; when the main shaft B34 of the circuit breaker rotates to switch on the circuit breaker, the locking crank arm B39 rotates towards the direction of the isolating main shaft B7, so that the interlocking plate B40 clamps the first isolating swing arm B8, and the isolating knife in the separated state or the combined state is locked; when the breaker main shaft B34 rotates reversely to perform breaker opening, the locking crank arm B39 rotates reversely, so that the interlocking plate B40 is separated from the first isolating swing arm B8 to be unlocked.
The breaker closing energy storage mechanism can adopt an existing closing energy storage mechanism of a pole-mounted switch or other existing energy storage mechanisms, and in the embodiment, the energy storage unit comprises a breaker closing latch B21, a breaker closing torsion pole B20, a transmission mechanism and a cam; the transmission mechanism comprises a driving rotating shaft B33 and a driven rotating shaft B22, two ends of the driving rotating shaft B33 and the driven rotating shaft B22 are respectively and rotatably connected with a front panel and a rear panel B13, the cam is fixed on the driven rotating shaft B22 (which is shielded by a driven large gear B27 and not shown), a driving small gear B32 is fixed on the driving rotating shaft B33, a driven large gear B27 meshed with the driving small gear B22 is fixed on the driven rotating shaft B22 (an intermediate transition gear B31 can be meshed between the driving small gear B22 and the driven large gear B27), a round wheel B28 is rotatably connected on the driven rotating shaft B22, a circumferential progressive opening B24 is arranged on the circumference of the round wheel B28, a jack post B23 is fixed on the round wheel B28, a clutch crank arm B25 is rotatably connected on the driven large gear B27, the clutch crank arm B25 is tightly attached to the circumference of the round wheel B28 under the action of a torsion spring, a clutch post B26 is fixed in a component mounting cavity beside the driven large gear B27, an energy storage crank arm B22 is fixedly connected with an energy storage crank arm B37, and a brake breaker B37 is connected with a brake breaker B38; when the driven large gear B27 rotates, the clutch crank arm B25 props against the circumferential progressive opening B24 to push the round wheel B28 to rotate until the jacking column B23 props against the bottom of the breaker closing pawl B21 to rotate the breaker closing pawl B21, so that the top lap joint is on the breaker closing torsion column B20 to finish breaker closing energy storage, when the breaker closing torsion column B20 rotates, the breaker closing pawl B21 is separated from the breaker closing torsion column B20, and the third extending claw B30 is pushed to rotate in the cam rotation process to drive the breaker main shaft B34 to rotate to finish breaker closing and breaker opening energy storage.
For circuit breaker switching-on, separating brake convenient operation is swift, all overlap and be equipped with the torsional spring on circuit breaker switching-on torsion post B20 and circuit breaker separating brake torsion post B15, be fixed with circuit breaker switching-on plectrum B45 on circuit breaker switching-on torsion post B20, be fixed with circuit breaker separating brake plectrum B17 on circuit breaker separating brake torsion post B15, install circuit breaker switch torsion post B18 in the part installation cavity, be fixed with the arm B16 on circuit breaker switch torsion post B18, when positive and negative torsion circuit breaker switch torsion post B18, arm B16 stir circuit breaker switching-on plectrum B45 or circuit breaker separating brake plectrum B17 rotate, can also set up transition plectrum B19 between arm B16 and circuit breaker switching-on plectrum B45 in order to overall structure's overall arrangement and change the rotation direction that arm B16 was dialled to circuit breaker switching-on plectrum B45.
In order to realize intelligent automatic control, the rotation of the driving rotating shaft B33 is provided with a power source through a manual or servo motor; the rotation of the breaker switch torsion bar B18 may also be powered by a manual or electric release.
In order to ensure that the breaker brake release latch B14 rotates beyond the range in the breaker brake release process, a brake release limiting swing arm B42 is fixed on the breaker brake release latch B14, and a brake release limiting column (not shown in the figure) which is matched with the brake release limiting swing arm B42 is installed in the component installation chamber.
Preferably, the forward and reverse torsion range of the isolating switch torsion column B1 is 45 °, which drives the second isolating swing arm B6 and the isolating spindle B7 to twist forward and reverse by 90 ° range, and the second isolating swing arm B6 spans the connection line between the connecting column B2 and the isolating spindle B7 during forward and reverse torsion, i.e. the locking action of the isolating spindle B7 is realized by the centering action.
When the invention works, firstly, the isolating main shaft B7 is connected with the isolating knife power shaft, and the breaker main shaft B34 is connected with the breaker power shaft;
when the on-column switch needs to be switched on, the isolating knife is switched on first and then the circuit breaker is switched on again, the isolating switch torsion column is rotated anticlockwise by 1 to 45 degrees, the isolating main shaft B7 is driven to rotate clockwise by 90 degrees, and accordingly the switching-on action of the isolating knife is completed, and in the process, the isolating energy storage pressure spring B4 stores energy, so that the isolating knife is locked in a switching-on state. Then, the driving rotating shaft B33 is manually or electrically controlled to rotate anticlockwise, so that the driven large gear B27 is driven to rotate anticlockwise, the clutch crank arm B25 is propped against the circumferential progressive opening B24 to push the round wheel B28 to rotate anticlockwise until the prop B23 is propped against the bottom of the breaker closing pawl B21 to enable the breaker closing pawl B21 to rotate, and the top lap joint is enabled to be on the breaker closing torsion post B20 to finish breaker closing energy storage; then, the breaker switch torsion post B18 is manually or electrically controlled to toggle the transition pulling piece B19, the transition pulling piece B19 toggles the breaker closing pulling piece B45, the breaker closing pawl B21 is separated from the breaker closing torsion post B20, and the third extending claw B30 is pushed to rotate in the cam rotation process, so that the breaker main shaft B34 is driven to rotate to finish breaker closing and breaker opening energy storage. At the same time, the locking crank arm B39 rotates in the direction of the isolation spindle B7, so that the interlocking plate B40 catches the first isolation swing arm B8 to lock the isolation blade.
When the on-column switch needs to be opened, the breaker is opened first and then the disconnecting switch is opened, the breaker switch torsion column B18 is controlled manually or electrically to stir the breaker opening pulling sheet B17, the second opening swing arm B43 is separated from the breaker opening torsion column B15, the three-claw turning arm reversely rotates to complete the breaker opening, and meanwhile, the locking turning arm B39 reversely rotates to enable the interlocking plate B40 to be separated from the first disconnecting swing arm B8 to unlock. Then, the isolating switch torsion column B1 is rotated clockwise to reset, the isolating main shaft B7 is driven to rotate anticlockwise by 90 degrees, so that the disconnecting operation of the isolating knife is completed, and the isolating energy storage pressure spring B4 stores energy again in the process, so that the isolating knife is locked in a disconnecting state.
If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is for convenience only as well as for simplicity of description, and nothing more than a particular meaning of the terms is intended to be used unless otherwise stated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with others, which may not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The intelligent pole switch with the built-in outdoor secondary fusion isolating knife is characterized by comprising an aluminum alloy base and an aluminum alloy housing matched with the aluminum alloy base, wherein an outer packaging box is formed by enclosing the aluminum alloy housing when the aluminum alloy housing is buckled on the aluminum alloy base, a plurality of isolating knife main loop transmission structures are arranged in the outer packaging box in parallel and in series, a left wire outlet terminal which stretches out of the outer packaging box leftwards is arranged at the left end of the isolating knife main loop transmission structure, a right wire outlet terminal which stretches out of the outer packaging box rightwards is arranged at the right end of the isolating knife main loop transmission structure, a left voltage sensor for measuring the voltage of the left wire outlet terminal and a right voltage sensor for measuring the voltage of the right wire outlet terminal are arranged on the isolating knife main loop transmission structure, a left current sensor is arranged at the inner end of the left wire outlet terminal, and a right current sensor is arranged at the inner end of the right wire outlet terminal;
the isolating knife main loop transmission structure comprises an insulating box, a left wire outlet used for left wire outlet is arranged at the left end of the insulating box, a right wire outlet used for right wire outlet is arranged at the right end of the insulating box, a left conductive piece is arranged in the left wire outlet, a right conductive piece is arranged in the right wire outlet, an isolating knife is arranged between the left wire outlet and the right wire outlet, the isolating knife comprises a knife holder, a rotary knife switch and a knife switch contact, the knife holder and the knife switch contact are all fixed in the insulating box, the knife switch contact is electrically connected with the right conductive piece, a circuit breaker is fixed in the insulating box, a fixed contact of the circuit breaker is electrically connected with the left conductive piece, a moving contact of the circuit breaker is electrically connected with the rotary knife switch through a soft conductive piece, and an insulating pull rod which is coaxially connected with the moving contact and used for driving the moving contact to move is arranged in the insulating box;
the left outgoing line terminal is spliced in the left outgoing line port, the right outgoing line terminal is spliced in the right outgoing line port, the left voltage sensor is electrically connected with the left conductive piece, and the right voltage sensor is electrically connected with the right conductive piece;
the rotary knife switch is hinged with the knife rest through a hinge shaft, a first power shaft is fixed on the rotary knife switch, and the first power shaft and the hinge shaft are coaxially arranged; the first power shafts of the transmission structures of the main loops of the isolating knives are integrally formed and coaxially arranged to form the same first power shaft;
the driving device comprises a base, a second power shaft is rotationally connected to the base, a swinging piece is fixed on the second power shaft, a connecting rod is arranged between the swinging piece and the free end of the insulating pull rod, and two ends of the connecting rod are hinged with the swinging piece and the free end of the insulating pull rod respectively; the second power shafts of the transmission structure of the main circuit of each isolation knife are integrally formed and coaxially arranged, namely the same second power shaft;
the inner end part of the outer packaging box is provided with a hollow cavity, a power operation mechanism is arranged in the hollow cavity, the power operation mechanism comprises a front panel and a rear panel, a component installation cavity is formed between the front panel and the rear panel, and an isolation power mechanism for controlling an isolation knife to be connected with or disconnected from the component installation cavity, a circuit breaker power mechanism for controlling a circuit breaker to be connected with or disconnected from the component installation cavity and a circuit breaker closing energy storage mechanism for circuit breaker closing energy storage are arranged in the component installation cavity;
the isolating power mechanism comprises an isolating switch torsion column and an isolating main shaft which is coaxially and fixedly connected with a first power shaft, wherein two ends of the isolating main shaft are respectively and rotatably connected with a front panel and a rear panel, a first isolating swing arm and a second isolating swing arm are fixed on the isolating main shaft, an isolating transmission arm is fixed on the isolating switch torsion column, a strip-shaped sliding groove is arranged on the isolating transmission arm, an isolating sliding shaft is slidably connected in the strip-shaped sliding groove, the isolating sliding shaft is fixedly connected with the first isolating swing arm, an isolating connecting column is rotatably connected in a component mounting cavity, a perforation is arranged on the isolating connecting column, an isolating guide column is slidably connected in the perforation, and the tail end of the isolating guide column is hinged with the second isolating swing arm;
the breaker power mechanism comprises a breaker opening energy storage mechanism and a breaker main shaft which is coaxially and fixedly connected with a second power shaft, wherein two ends of the breaker main shaft are respectively connected with a front panel and a rear panel in a rotating way, a three-claw crank arm is fixedly arranged on the breaker main shaft and comprises a first extending claw, a second extending claw and a third extending claw, a breaker guide post is hinged on the first extending claw, a breaker limit sleeve is fixedly arranged in a component mounting cavity, the breaker guide post is positioned in the breaker limit sleeve and is in sliding connection with the breaker limit sleeve, and a breaker opening energy storage pressure spring is sleeved on the breaker guide post;
the breaker opening energy storage mechanism comprises a breaker opening detent and a breaker opening torsion column, the breaker opening detent and the breaker opening torsion column are both rotationally connected with the front panel and the rear panel, the breaker opening detent comprises a first opening swing arm and a second opening swing arm, when the three-claw turning arm rotates, the second extending claw pushes the first opening swing arm to rotate so that the second opening swing arm is lapped on the breaker opening torsion column to complete breaker closing and breaker opening energy storage, and when the breaker opening torsion column rotates, the second opening swing arm is separated from the breaker opening torsion column to complete breaker opening;
the breaker closing energy storage mechanism comprises an energy storage unit and a cam, wherein the cam is driven to rotate when the energy storage unit releases mechanical energy, and the cam drives the third extending claw to rotate in the rotating process of the cam so as to drive the breaker main shaft to rotate to finish breaker closing and breaker opening energy storage;
the forward and reverse torsion range of the isolating switch torsion column is 45 degrees, the second isolating swing arm is driven to twist forward and reverse by 90 degrees, and the second isolating swing arm spans the position of the connecting line between the connecting column and the isolating main shaft during forward and reverse torsion;
a monitoring device for observing the working state of the isolating knife is arranged in the outer packaging box.
2. The outdoor secondary fusion isolating blade built-in intelligent pole-mounted switch according to claim 1, wherein a locking mechanism is arranged between the isolating power mechanism and the circuit breaker power mechanism, the locking mechanism comprises a locking crank arm fixed on a main shaft of the circuit breaker, and a locking plate is fixed on the locking crank arm; when the main shaft of the circuit breaker rotates to switch on the circuit breaker, the locking crank arm rotates towards the direction of the isolating main shaft, so that the interlocking plate clamps the first isolating swing arm; when the main shaft of the circuit breaker reversely rotates to switch off the circuit breaker, the locking crank arm reversely rotates, so that the interlocking plate is separated from the first isolation swing arm.
3. The outdoor secondary fused isolating blade built-in intelligent pole-mounted switch of claim 2, wherein the energy storage unit comprises a breaker closing detent, a breaker closing torsion pole, a transmission mechanism and a cam; the driving mechanism comprises a driving rotating shaft and a driven rotating shaft, two ends of the driving rotating shaft and two ends of the driven rotating shaft are respectively connected with a front panel and a rear panel in a rotating mode, the cam is fixed on the driven rotating shaft, a driving pinion is fixed on the driving rotating shaft, a driven large gear meshed with the driving pinion is fixed on the driven rotating shaft, a round wheel is rotationally connected on the driven rotating shaft, a circumferential progressive opening is formed in the circumferential edge of the round wheel, a jack post is fixed on the round wheel, a clutch crank arm is fixed on the driven large gear, a clutch post is fixed in a component mounting cavity beside the driven large gear, an energy storage crank arm is rotationally connected on the driven rotating shaft, and a breaker closing energy storage tension spring is connected on the energy storage crank arm; when the driven large gear rotates, the clutch crank arm is propped against the circumferential progressive opening to push the round wheel to rotate until the jacking column is propped against the bottom of the breaker closing pawl, so that the top of the breaker closing pawl is lapped on the breaker closing torsion column to finish breaker closing energy storage, when the breaker closing torsion column rotates, the breaker closing pawl is separated from the breaker closing torsion column, and the third extending claw is pushed to rotate in the cam rotating process so as to drive the breaker main shaft to rotate to finish breaker closing and breaker opening energy storage.
4. The outdoor secondary fused isolating blade built-in intelligent pole-mounted switch according to claim 3, wherein torsion springs are respectively sleeved on the breaker closing torsion pole and the breaker opening torsion pole, a breaker closing pulling piece is fixed on the breaker closing torsion pole, a breaker opening pulling piece is fixed on the breaker opening torsion pole, a breaker opening Guan Niuzhu is installed in the component installation cavity, a pulling arm is fixed on the breaker opening torsion pole, and when the breaker opening torsion pole is twisted positively and negatively, the pulling arm pulls the breaker closing pulling piece or the breaker opening pulling piece to rotate.
5. The intelligent pole-mounted switch with the built-in outdoor secondary fusion isolation knife according to claim 4, wherein the rotation of the driving rotating shaft is provided with a power source by a manual or servo motor; the rotation of the breaker switch torsion column is performed through a manual or electric release to provide a power source.
6. The outdoor two-shot fusion isolation knife built-in intelligent pole switch according to claim 5, wherein a brake-separating limit swing arm is fixed on a brake-separating pawl of the circuit breaker, and a brake-separating limit pole which is matched with the brake-separating limit swing arm is installed in the component installation cavity.
7. The outdoor two-time fusion isolation knife built-in intelligent pole switch according to claim 5, wherein the insulation boxes comprise a first insulation box and a second insulation box, a left wire outlet is arranged on the first insulation box, a right wire outlet is arranged on the second insulation box, and a left conductive piece, a circuit breaker, an insulation pull rod, a knife holder and a rotary knife switch are coated in the first insulation box; the disconnecting link contact and the right conductive piece are covered in the second insulation box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810999098.4A CN109065402B (en) | 2018-08-30 | 2018-08-30 | Outdoor secondary fuses built-in intelligent post of isolation sword switch |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810999098.4A CN109065402B (en) | 2018-08-30 | 2018-08-30 | Outdoor secondary fuses built-in intelligent post of isolation sword switch |
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| CN109065402A CN109065402A (en) | 2018-12-21 |
| CN109065402B true CN109065402B (en) | 2023-12-01 |
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| CN201810999098.4A Active CN109065402B (en) | 2018-08-30 | 2018-08-30 | Outdoor secondary fuses built-in intelligent post of isolation sword switch |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599292B (en) * | 2018-12-26 | 2019-12-13 | 环欧电气有限公司 | One-time and two-time fusion complete column switch |
| CN112216550B (en) * | 2020-10-09 | 2024-01-09 | 南京四方致捷开关有限公司 | Column circuit breaker with built-in isolating switch |
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| CN109065402A (en) | 2018-12-21 |
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Effective date of registration: 20231106 Address after: 461000 Xuchang City, Henan province Ruixiang economic and Technological Development Zone Road Applicant after: Xuchang yushengchang Electric Co.,Ltd. Address before: 461000 No. 469 Ruixiang Road, Economic and Technological Development Zone, Xuchang City, Henan Province Applicant before: XUCHANG YONGXIN ELECTRIC Co.,Ltd. |
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