CN217544461U

CN217544461U - Split type vertical vacuum circuit breaker

Info

Publication number: CN217544461U
Application number: CN202122595549.8U
Authority: CN
Inventors: 黄小塬; 林淡; 张群; 林画特; 黄秋敏; 陈日益
Original assignee: Suctrn Technology Co ltd
Current assignee: Suctrn Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-10-04
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a split type vertical vacuum circuit breaker, including metal crate, the isolator of setting on metal crate, vacuum circuit breaker and operating device, the last linkage isolation main shaft that is provided with of metal crate, isolator is including the isolation blade that corresponds mutually and keep apart the static contact, it fixes in the metal crate upper end to keep apart the static contact through an insulating support frame, vacuum circuit breaker includes utmost point post and sets up the vacuum interrupter in utmost point post, the utmost point post top is provided with keeps apart the undersetting, it connects on keeping apart the undersetting to keep apart blade bottom, it connects on the linkage isolation main shaft through an insulating connecting rod to keep apart the blade, it rotates under linkage isolation main shaft and operating device's control and keeps apart the static contact or be the unsettled state of separating brake with keeping apart the static contact, and then realize opening or closing of isolator. The utility model discloses an isolator is split type structure, guarantees that the physics of separating blade, isolation position static contact is isolated behind the separating brake, and the security performance is higher.

Description

Split type vertical vacuum circuit breaker

Technical Field

The utility model relates to a vacuum circuit breaker technical field, concretely relates to split type vertical vacuum circuit breaker.

Background

Most of the longitudinal vacuum circuit breakers in the market at present adopt an isolation, vacuum and grounding top-down structural layout, most of insulation parts for supporting the installation of conductive parts are produced in an integrated design and integrated forming mode, and are fixed on a metal frame through an upper group of bolts and a lower group of bolts, so that the length and the size of the insulation parts are relatively long, the volume is large, and the corresponding production cost is high; meanwhile, the isolation blade and the isolation position fixed contact of the isolation switch are fixed on the metal frame through the same insulating part, physical isolation is not adopted, the requirement on the creep distance can be met only by enlarging an umbrella skirt and the like, and certain potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vertical vacuum circuit breaker of split type to solve isolator's isolation blade, keep apart the static contact and do not have the isolated problem of physics, reduce the overall dimension of insulating part in the circuit breaker simultaneously, reduce cost.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a split type vertical vacuum circuit breaker, including metal crate, the isolator of setting on metal crate, vacuum circuit breaker and operating device, isolator and rather than the complex vacuum circuit breaker be longitudinal arrangement's multistation structure, be provided with linkage isolation main shaft on the metal crate, isolator is including the isolation blade and the isolation static contact that correspond mutually, isolation static contact is fixed in the metal crate upper end through an insulation support frame, vacuum circuit breaker includes utmost point post and the vacuum interrupter who sets up in utmost point post, utmost point post top is provided with the isolation undersetting, isolation blade bottom is connected on the isolation undersetting, the isolation blade passes through an insulation connecting rod and connects on linkage isolation main shaft, the isolation blade rotates under linkage isolation main shaft and operating device's control and electrically conducts the contact with isolation static contact or is the unsettled state of separating brake, and then realize isolator's opening or closing.

Optionally, the bottom of the isolation blade is connected with the isolation lower support in a pressing manner through a disc spring.

Optionally, isolator and rather than complex vacuum circuit breaker be longitudinal arrangement's three station structures, utmost point post upper portion adopts for the umbrella skirt that a plurality of diameters are the same, and the umbrella skirt below of three utmost point post is connected jointly and is formed a square insulating barrier for separate the isolator on upper portion and the vacuum circuit breaker of lower part.

Optionally, the pole is designed to have a hollow structure inside.

Optionally, the isolation lower support is fixedly connected with a static end of the vacuum arc-extinguishing chamber, a breaker spindle is arranged on the metal frame, and the breaker spindle is in driving connection with a moving end of the vacuum arc-extinguishing chamber through a transmission assembly.

Optionally, the terminal is fixedly connected to the metal frame, the movable end of the vacuum arc-extinguishing chamber is further connected with a flexible connection, the bottom of the flexible connection is in partial overlapping contact with the lower outgoing copper bar, the lower outgoing copper bar is fixed to the bottom end face of the inner side of the terminal through a bolt, a knife clamp fixing row is fixed to the lower end of the lower outgoing copper bar, a grounding knife clamp is arranged below the knife clamp fixing row, and the bottom of the metal frame is connected with a grounding knife matched with the grounding knife clamp to form a grounding switch.

Optionally, an upper wire holder is respectively installed in the insulation groove of the insulation support frame, and the upper wire holder is further connected with the isolation position fixed contact for electrically connecting the bus bar.

Optionally, the operating mechanism is disposed on the left side or the right side of the vacuum circuit breaker, and a mechanically linked disconnecting switch control module and a circuit breaker switch control module are disposed in the operating mechanism and are respectively used for controlling the closing, opening and grounding of the disconnecting switch and the vacuum circuit breaker.

The utility model discloses following beneficial effect has:

the utility model discloses to keep apart the blade and connect on the main shaft is kept apart in the linkage through an insulation connecting rod, and then connect on metal crate, keep apart the position static contact and pass through an insulation support frame and fix in metal crate upper end, thereby make isolator be split type layout structure design, the isolation blade after the isolator separating brake has been realized, the physics of isolation position static contact is isolated, for traditional fixed connection that will keep apart blade and isolation position static contact common through an insulator integrated into one piece on metal crate, its security performance is higher, and this structural feature makes the length and size of the insulator on the isolator all shorter, the volume is littleer, and production cost is lower.

Drawings

Fig. 1 is a front view of an embodiment of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a right side view of an embodiment of the present invention;

fig. 4 is a left side view of an embodiment of the present invention;

fig. 5 is a perspective view of an embodiment of the present invention at an angle;

fig. 6 is a perspective view of an embodiment of the present invention at another angle;

the device comprises a metal frame 1, an operating mechanism 2, a linkage isolation main shaft 3, an isolation blade 4, an isolation position static contact 5, an insulation support frame 6, an insulation connecting rod 7, a pole 8, a vacuum arc extinguish chamber 9, a square insulation partition plate 10, a flexible connection 11, an outlet copper bar 12, a knife clamp fixing row 13, a grounding knife holder 14, a grounding knife 15, an upper wiring seat 16, an isolation lower support 17, a breaker main shaft 18 and a transmission assembly 19.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

Referring to fig. 1-6, as the embodiment of the utility model provides a split type vertical vacuum circuit breaker, including metal crate 1, the isolator of setting on metal crate 1, vacuum circuit breaker and operating device 2, isolator and rather than the complex vacuum circuit breaker be longitudinal arrangement's multistation structure, be provided with linkage isolation main shaft 3 on metal crate 1, isolator includes isolation blade 4 and isolation static contact 5 that correspond each other, isolation static contact 5 fixes in metal crate 1 upper end through an insulation support frame 6, vacuum circuit breaker includes utmost point post 8 and sets up vacuum interrupter 9 in utmost point post 8, utmost point post 8 top is provided with isolation undersetting 17, isolation blade 4 bottom is connected on isolation undersetting 17, isolation blade 4 is connected on linkage isolation main shaft 3 through an insulating connecting rod 7, isolation blade 4 rotates under the control of linkage isolation main shaft 3 and operating device 2 and is electrically conductive contact with isolation static contact 5 or is the unsettled state of separating brake, and then realize opening or closing of isolator.

Above-mentioned technical scheme, to keep apart blade 4 and connect on main shaft 3 is kept apart in the linkage through an insulating connecting rod 7, and then connect on metal crate 1, keep apart position static contact 5 and fix in metal crate 1 upper end through an insulating support frame 6, make isolator be split type layout structure design, the physical isolation of having realized isolation blade 4 after the isolator separating brake, isolation position static contact 5, the security performance is higher, and this structural feature makes the length and size of the insulating part on the isolator shorter, the volume is littleer, manufacturing cost is lower.

In this embodiment, the bottom of the isolation blade 4 is protruded and tightly connected with the isolation lower support 17 through a disc spring (not shown), so that the isolation blade is convenient to use, easy to replace and maintain and high in safety.

In this embodiment, isolator 4 is longitudinal arrangement's three station structures rather than complex vacuum circuit breaker, and 8 upper portions of utmost point post adopt for the umbrella skirt that a plurality of diameters are the same, and the umbrella skirt below of three utmost point post 8 is connected jointly and is formed a square insulating barrier 10 for the isolator with upper portion is separated with the vacuum circuit breaker of lower part, has further promoted the utility model discloses a fail safe nature.

In this embodiment, 8 inside hollow structure designs for utmost point post, changes original vacuum bubble solid sealed structure into assembled, and easy to assemble has the cost is reduced.

In this embodiment, keep apart the integrative fixed connection of quiet end of undersetting 17 and vacuum interrupter 9, be provided with circuit breaker main shaft 18 on the metal crate 1, circuit breaker main shaft 18 is connected through the end drive that moves of a drive assembly 19 and vacuum interrupter 9, it is specific, keep apart undersetting 17, the inserts at utmost point post 8 top, the quiet end three of vacuum interrupter 9 passes through the bolt fastening and becomes integrative, operating device 2 is through the rotation of control circuit breaker main shaft 18, and then drive assembly 19 and drive the end action that moves of vacuum interrupter 9, realize opening or closing of vacuum circuit breaker switch.

In this embodiment, the terminal post 8 is fixedly connected to the metal frame 1 through the nut insert in the middle and the bolt in a matching manner, the movable end of the vacuum arc-extinguishing chamber 9 is further connected to the flexible connection 11 through the bolt, the bottom of the flexible connection 11 is in partial overlapping contact with the lower outgoing copper bar 12, the flexible connection is fixed to the bottom end face of the inner side of the terminal post 8 through the bolt, the lower end of the lower outgoing copper bar 12 is fixed to a cutter clamp fixing row 13, a grounding cutter holder 14 is arranged below the cutter clamp fixing row 13, and the bottom of the metal frame 1 is connected to a grounding cutter 15 matched with the grounding cutter holder 14 to form a grounding switch.

In this embodiment, the insulating grooves of the insulating support frame 6 are respectively provided with an upper wire holder 16, and the upper wire holder 16 is further connected with the isolation position fixed contact 5 for electrically connecting the bus bar. The operating mechanism 2 is arranged on the left side or the right side of the vacuum circuit breaker, and a mechanically linked disconnecting switch control module and a circuit breaker switch control module are arranged in the operating mechanism and are respectively used for controlling the closing, the opening and the grounding of the disconnecting switch and the vacuum circuit breaker.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A split type longitudinal vacuum circuit breaker is characterized in that: the vacuum circuit breaker comprises a metal frame, an isolating switch, a vacuum circuit breaker and an operating mechanism, wherein the isolating switch and the vacuum circuit breaker matched with the isolating switch are of a multi-station structure which is longitudinally arranged, a linkage isolating main shaft is arranged on the metal frame, the isolating switch comprises an isolating blade and an isolating static contact which correspond to each other, the isolating static contact is fixed at the upper end of the metal frame through an insulating support frame, the vacuum circuit breaker comprises a pole and a vacuum arc extinguish chamber arranged in the pole, an isolating lower support is arranged at the top end of the pole, the bottom of the isolating blade is connected to the isolating lower support, the isolating blade is connected to the linkage isolating main shaft through an insulating connecting rod, and the isolating blade rotates under the control of the linkage isolating main shaft and the operating mechanism, so that the isolating movable contact on the isolating blade is in conductive contact with the isolating static contact or in a separated brake suspension state, and the opening or closing of the isolating switch is realized; isolator and rather than complex vacuum circuit breaker be longitudinal arrangement's three station structures, utmost point post upper portion adopts for the same full skirt of a plurality of diameters, and the full skirt below of three utmost point post is connected jointly and is formed a square insulating barrier for separate the isolator on upper portion and the vacuum circuit breaker of lower part.

2. The split longitudinal vacuum circuit breaker according to claim 1, characterized in that: the bottom of the isolation blade is tightly connected with the isolation lower support through a disc spring.

3. The split longitudinal vacuum circuit breaker according to claim 1, characterized in that: the pole is internally designed into a hollow structure.

4. The split longitudinal vacuum circuit breaker according to claim 1, characterized in that: the isolation lower support is fixedly connected with the static end of the vacuum arc extinguish chamber in an integrated mode, a breaker main shaft is arranged on the metal frame, and the breaker main shaft is connected with the moving end of the vacuum arc extinguish chamber in a driving mode through a transmission assembly.

5. The split longitudinal vacuum circuit breaker according to claim 1, characterized in that: the pole column is fixedly connected to the metal frame, the moving end of the vacuum arc extinguish chamber is further connected with a flexible connection, the bottom of the flexible connection is in partial overlapping contact connection with a lower outgoing line copper bar, the lower outgoing line copper bar is fixed to the bottom end face of the inner side of the pole column through a bolt, a knife clamp fixing row is fixed to the lower end of the lower outgoing line copper bar, a grounding knife clamp is arranged below the knife clamp fixing row, and the bottom of the metal frame is connected with a grounding knife matched with the grounding knife clamp to form a grounding switch.

6. The split longitudinal vacuum circuit breaker according to claim 1, characterized in that: and the upper wire holders are respectively arranged in the insulating grooves of the insulating support frame and are also connected with the fixed contacts of the isolation positions for electrically connecting the busbar.

7. The split longitudinal vacuum circuit breaker according to claim 1, characterized in that: the operating mechanism is arranged on the left side or the right side of the vacuum circuit breaker, and a mechanical linkage isolating switch control module and a circuit breaker switch control module are arranged in the operating mechanism and are respectively used for controlling the closing, opening and grounding of the isolating switch and the vacuum circuit breaker.