WO2020181898A1 - Commutateur d'isolation et base conductrice associée - Google Patents

Commutateur d'isolation et base conductrice associée Download PDF

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Publication number
WO2020181898A1
WO2020181898A1 PCT/CN2019/130783 CN2019130783W WO2020181898A1 WO 2020181898 A1 WO2020181898 A1 WO 2020181898A1 CN 2019130783 W CN2019130783 W CN 2019130783W WO 2020181898 A1 WO2020181898 A1 WO 2020181898A1
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WO
WIPO (PCT)
Prior art keywords
conductive
base
plate
conductive tube
supporting
Prior art date
Application number
PCT/CN2019/130783
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English (en)
Chinese (zh)
Inventor
孙玉洲
李付永
高坚
王巧红
郭海涛
陈亚亚
孙龙勇
师丽芳
钟荣松
姚灿江
Original Assignee
河南平高电气股份有限公司
平高集团有限公司
国家电网有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 河南平高电气股份有限公司, 平高集团有限公司, 国家电网有限公司 filed Critical 河南平高电气股份有限公司
Publication of WO2020181898A1 publication Critical patent/WO2020181898A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details

Definitions

  • This application relates to the technical field of high-voltage switchgear, in particular to an isolating switch and its conductive base.
  • Isolation switch is one of the main equipment in high-voltage power transmission and transformation equipment, and can realize the disconnection and closing of the transmission line after being connected to the transmission line.
  • the authorization announcement number is CN202159617U and the authorization announcement date is 2012.03.07.
  • a double-post horizontal telescopic outdoor high-voltage AC disconnect switch disclosed in the document mainly includes a pillar insulator, a base set on the pillar insulator, and a connecting rod mechanism
  • the assembly of the conductive tube assembled on the base can drive the upper conductive tube and the lower conductive tube in the assembly of the conductive tube to fold or extend through the corresponding action of the link mechanism, and the movable contact set on the upper conductive tube is driven by the lower conductive tube
  • the bottom is matched with the static contact to realize the opening and closing action of the disconnect switch.
  • the action of the linkage mechanism is generally driven by a rotating insulator.
  • a drive flange is provided between the drive member and the insulator of the linkage mechanism, and a flange mounting seat for installing the drive flange is correspondingly provided on the base.
  • the conductive tube hinge seat used to assemble and articulate the conductive tube, the conductive tube assembly has an accurate action rule through the linkage mechanism to ensure the accuracy of opening and closing. This kind of opening and closing action is realized through the relative movement of the conductive tube
  • the isolation switch is widely used because of its simple structure and reliable action.
  • the authorized announcement number is CN203367122U, and the patent document with the authorized announcement date of 2013.12.25 discloses a folding arm type high voltage isolating switch, which includes a movable contact assembly and a static contact composed of a transmission base and a motor, and a movable contact assembly It includes a conductive tube assembly composed of relatively rotatable upper and lower conductive tubes. A flange plate is arranged on the transmission seat. The flange plate is connected with the conductive tube assembly and transmission through a connecting rod mechanism, thereby driving the lower conductive tube in the opening and closing positions Swing back and forth, correspondingly, the upper conductive tube is driven by the lower conductive tube to realize the opening and closing action of the isolating switch.
  • the transmission base After the transmission base is connected with the terminal board, the transmission base forms a conductive base that conducts the lower conductive tube and the external bus circuit.
  • the transmission base In order to ensure the stable support of the conductive tube assembly and the connecting rod mechanism, the transmission base generally uses castings, but the problem is : The use of castings as conductive bases must consider both current flow and strength issues, which will lead to waste of raw materials and increased costs, and castings are often thicker. After current passes through the conductive base, it is not conducive to heat dissipation.
  • the purpose of the embodiments of the present application is to provide a conductive base of an isolating switch, which can solve the problems of high cost and poor heat dissipation of the conductive base in the prior art.
  • Another purpose of the embodiments of the present application is to provide an isolating switch that can solve the current problems. There are the problems of high cost and poor heat dissipation of the conductive base in the technology, which ensures the working stability of the isolation switch.
  • the isolating switch in the embodiment of the present application adopts the following technical solutions:
  • the isolating switch includes a conductive tube assembly and a conductive base for the installation of the conductive tube.
  • the conductive base includes a base, and the base is provided with a conductive tube hinge seat for the conductive tube assembly and hinge and a corresponding driving method Flange mounting seat for rotating assembly, the base body is formed by two spaced support beams, the conductive tube hinge seat and the flange mounting seat are respectively located at the two ends of the support beam and are both fixed in two Between the supporting beams, the supporting beam, the conductive tube hinge seat and the flange mounting seat constitute a frame structure.
  • the beneficial effect is that: two spaced support beams are used to form the base of the conductive base, and the conductive tube hinge seat and the flange mounting seat can form a stable frame structure, and while supporting the conductive tube assembly, The redundant structure is reduced, the utilization rate of raw materials is improved, and the production cost is reduced; and the two support beams are arranged at intervals, which has a larger heat dissipation space when the support beams are conductive, which can improve the heat dissipation effect of the conductive base and the stability of the isolation switch Sex.
  • the support beam includes vertical plate parts arranged opposite to each other along the direction in which the two support beams are arranged at intervals, and also includes a transverse plate arranged perpendicular to the vertical plate to strengthen the support beam Body part.
  • the beneficial effect is that the support beam is formed by the combination of the horizontal plate body and the vertical plate body, which can simplify the structure and optimize the cost while ensuring the strength.
  • the support beam is formed by a bent plate with an L-shaped cross section.
  • the beneficial effect is that the technology of processing the bent plate with the L-shaped cross section is mature and the yield rate is high, and the complete set progress is fast.
  • the flange mounting seat includes a supporting plate spanning between the top surfaces of the two supporting beams, and one end of the supporting beam provided with the supporting plate is also fixedly connected to the two supporting beams. Wiring board between beams.
  • the beneficial effect is that the main structure of the flange mounting seat adopts a supporting plate, which reduces the use of redundant structures.
  • the wiring board has a Y-shaped structure and includes a horizontal wiring board main body, and the vertical board body of the supporting beam is respectively provided on the wiring board main body at two positions corresponding to the top of the Y shape.
  • the side surface is attached to the fixed connecting lug plate, and the part of the wiring board main body located between the two connecting lug plates forms an escape recess for avoiding the driving flange.
  • the wiring board is a Y-shaped structure, and each branch has a different function: the top two branches form a fixed part fixed to the support beam, the remaining branches form a diversion part connected to the external bus, and the top two branches
  • the drive flange can pass through between the spaces, forming an avoiding recess that avoids the drive flange, making the structure of the entire conductive base more compact.
  • the flange mounting seat is provided with a limit plate
  • the limit plate is provided with a limit member for limiting the limit swing position of the driving arm connected to the driving flange.
  • the beneficial effect is that a limit plate is provided on the flange mounting seat to limit the movement of the conductive tube assembly, which can further ensure the accuracy of opening and closing actions.
  • the limiting plate is formed of an L-shaped plate arranged along the extension direction of the support beam, and the limiting plate has a vertical part connected with the flange mounting seat, and the vertical part is There is a limit surface that restricts the driving arm to continue to rotate after the isolation switch is opened and closed, and the vertical part correspondingly forms the limit member.
  • the beneficial effect is that: L-shaped plates are used to form the limit plate, and the structure is simple and easy to manufacture.
  • the conductive tube hinge seat includes a bottom plate spanning between the bottom surfaces of the two supporting beams, and also includes two supporting plates that are closely fixed to the sides of the two supporting beams. The lower side of the board is fixedly connected with the bottom board.
  • the beneficial effect is that the hinged seat of the conductive tube is installed in a sinking manner between the two support beams, the structure of the support beam is fully utilized, the conductive base structure is more compact, and the layout of redundant structures is reduced.
  • the conductive base of the isolating switch in the embodiment of the present application adopts the following technical solutions:
  • the conductive base of the isolating switch includes a base body.
  • the base body is provided with a conductive tube hinge seat for assembling the conductive tube and a flange mounting seat for rotating and assembling the corresponding drive flange.
  • the base body is composed of two spaced apart
  • the supporting beam is formed, the conductive tube hinge seat and the flange mounting seat are respectively located at both ends of the supporting beam and both are fixed between the two supporting beams, the supporting beam and the conductive tube hinge seat,
  • the flange mounting seat constitutes a frame structure.
  • the beneficial effect is that: two spaced support beams are used to form the base of the conductive base, and the conductive tube hinge seat and the flange mounting seat can form a stable frame structure, and while supporting the conductive tube assembly, The redundant structure is reduced, and the utilization rate of raw materials is improved; and the two supporting beams are arranged at intervals, so that when the supporting beams are conductive, there is a larger heat dissipation space, which can improve the heat dissipation effect of the conductive base.
  • the support beam includes vertical plate parts arranged opposite to each other along the direction in which the two support beams are arranged at intervals, and also includes a transverse plate arranged perpendicular to the vertical plate to strengthen the support beam Body part.
  • the beneficial effect is that the support beam is formed by the combination of the horizontal plate body and the vertical plate body, and the structure is simplified as much as possible while ensuring the strength, and the use of materials is reduced.
  • the support beam is formed by a bent plate with an L-shaped cross section.
  • the beneficial effect is that the technology for processing the bent plate with the L-shaped cross section is mature and easy to manufacture.
  • the flange mounting seat includes a supporting plate spanning between the top surfaces of the two supporting beams, and one end of the supporting beam provided with the supporting plate is also fixedly connected to the two supporting beams. Wiring board between beams.
  • the beneficial effect is that the main structure of the flange mounting seat adopts the supporting plate, which reduces the use of redundant structure.
  • the wiring board has a Y-shaped structure and includes a horizontal wiring board main body, and the vertical board body of the supporting beam is respectively provided on the wiring board main body at two positions corresponding to the top of the Y shape.
  • the side surface is attached to the fixed connecting lug plate, and the part of the wiring board main body located between the two connecting lug plates forms an escape recess for avoiding the driving flange.
  • the wiring board is a Y-shaped structure, and each branch has a different function: the top two branches form a fixed part fixed to the support beam, the remaining branches form a diversion part connected to the external bus, and the top two branches
  • the drive flange can pass through between the spaces, forming an avoiding recess that avoids the drive flange, making the structure of the entire conductive base more compact.
  • the flange mounting seat is provided with a limit plate
  • the limit plate is provided with a limit member for limiting the limit swing position of the driving arm connected to the driving flange.
  • the beneficial effect is that a limit plate is provided on the flange mounting seat to limit the movement of the conductive tube assembly, which can further ensure the accuracy of opening and closing actions.
  • the limiting plate is formed of an L-shaped plate arranged along the extension direction of the supporting beam, and the limiting plate has a vertical part connected with the flange mounting seat, and the vertical part is There is a limit surface that restricts the driving arm to continue to rotate after the isolation switch is opened and closed, and the vertical part correspondingly forms the limit member.
  • the beneficial effect is that L-shaped plates are used to form the limit plate, which is easy to manufacture.
  • the conductive tube hinge seat includes a bottom plate spanning between the bottom surfaces of the two supporting beams, and also includes two supporting plates that are closely fixed to the sides of the two supporting beams. The lower side of the board is fixedly connected with the bottom board.
  • the beneficial effect is that the hinged seat of the conductive tube is installed in a sinking manner between the two support beams, the structure of the support beam is fully utilized, the conductive base structure is more compact, and the layout of redundant structures is reduced.
  • Figure 1 is a schematic structural diagram of an isolating switch in an embodiment of the application
  • FIG. 2 is a top view of the partial structure of the isolating switch in the embodiment of the application;
  • FIG. 3 is a schematic diagram of the assembly of the conductive base and the conductive tube of the isolating switch in the embodiment of the application, and the conductive tube is assembled in a folded state in the figure;
  • FIG. 4 is a schematic diagram of the structure of the conductive base of the isolating switch in the embodiment of the application;
  • FIG. 5 is a schematic diagram of the connection structure between the upper conductive tube and the lower conductive tube of the isolating switch in an embodiment of the application;
  • Fig. 6 is a front view of the conductive base when the isolating switch is opened in the embodiment of the application;
  • Fig. 7 is a top view of the conductive base when the isolating switch is opened in the embodiment of the application;
  • Figure 8 is a front view of the conductive base when the isolating switch is closed in the embodiment of the application;
  • Fig. 9 is a top view of the conductive base when the isolating switch is closed in the embodiment of the application.
  • the isolating switch includes a support part and a switch part arranged on the support part.
  • the switch part includes a conductive base 10 and a conductive tube assembly arranged on the conductive base 10, and a movable contact 40 is provided on the conductive tube assembly.
  • the switch part also includes a static contact 50 that is spaced apart from the conductive base 10.
  • the movable contact 40 can contact and cooperate with the static contact 50 under the drive of the conductive tube assembly to realize the isolation switch closing, or the movable contact 40
  • the isolation switch is opened in the opposite way.
  • the supporting part includes a post insulator 60, which is further divided into a supporting insulator that plays a supporting role and a rotating insulator that drives the assembly of the conductive tube through its own rotation.
  • the conductive tube assembly includes an upper conductive tube 30 and a lower conductive tube 20 that are connected in transmission.
  • the lower conductive tube 20 is in transmission connection with the conductive base 10, and the upper conductive tube 30 is provided with a movable contact matched with a static contact 50. 40.
  • the lower conductive tube 20 acts as an active part, which can drive the upper conductive tube 30 to swing when it swings.
  • the conductive base 10 can drive the lower conductive tube 20 to rotate to realize the upper conductive tube 30 approaching or moving away from the static contact 50.
  • a conductive tape 70 is arranged between the two conductive tubes, and the conductive tape 70 is correspondingly connected to the conductive tube through a connecting piece 71.
  • the conductive base 10 includes two parallel support beams 11, the support beams 11 are made of conductive material, when the lower conductive tube 20 and the conductive base 10 are connected in transmission, the lower conductive tube 20 and the conductive When the base 10 is connected, the supporting beam 11 also forms the base of the conductive base 10 correspondingly.
  • the conductive base 10 also includes a link mechanism for directly driving the lower conductive tube 20 to rotate to realize opening and closing actions.
  • the linkage mechanism is a spatial linkage mechanism, including a driving arm 12 that rotates on a horizontal plane and a swing seat 14 that rotates on a vertical plane for driving the lower conductive tube 20 to move.
  • the swing seat 14 has a U-shaped structure and is arranged in Between two supporting beams.
  • the shape of the swing seat 14 is different from that of the rod, its function and movement mode are the same as those of the rod.
  • a hinge shaft extending in the vertical direction is provided on the driving arm 12, and a hinge shaft connected with other followers to drive itself to swing is provided on the swing seat 14, because the driving arm 12 and the swing seat 14 move The directions are different, so the arrangement directions of the two different hinge shafts are also different, and the hinge shafts on the swing seat 14 extend in the horizontal direction.
  • a driven rod 13 as a follower is also provided between the driving arm 12 and the swing base 14.
  • One end of the driven rod 13 is hinged with the driving arm 12, and the other end is hinged with the swing base.
  • the two ends of the driven rod 13 are hinged.
  • the axes are also different. In order to ensure the smooth movement of the spatial linkage mechanism, both ends of the driven rod 13 are hinged with the driving arm 12 and the swing seat 14 through a spherical hinge structure.
  • the supporting beam 11 includes a vertical plate body 112 arranged opposite to each other in a direction in which two supporting beams 11 are arranged at intervals, and also includes a transverse plate body 111 arranged perpendicular to the vertical plate body 112 to strengthen the supporting beam 11.
  • the horizontal plate body 111 and the vertical plate body 112 are connected so that the cross section of the support beam 11 is L-shaped, and the bent plate can be directly used when the support beam 11 is manufactured.
  • the two supporting beams 11 are arranged in a parallel manner, and a certain interval is reserved between the two supporting beams 11.
  • a flange mounting seat 18 is fixed at one end of the transverse plate body 111 of the two support beams 11 by threaded fasteners.
  • the specific structure is a support plate spanning the top surface of the two support beams 11, and the flange mounting seat 18 is provided There is a through hole for the drive shaft connected with the driving arm 12 to pass through from bottom to top to be connected with the driving arm 12, and a limit plate is also provided on the flange mounting seat 18.
  • the limit plate is formed by a cross section It is formed of an L-shaped limit angle steel 15.
  • the limit angle steel 15 has a horizontal part fixedly connected to the flange mounting seat 18 and a vertical part connected to the horizontal part. The vertical part faces the driving arm 12 and is provided with a drive
  • the arm 12 blocks the matched limit screw 151, and the operator can adjust the stop position of the limit angle 15 to restrict the rotation of the driving arm 12 by screwing the limit screw 151.
  • a conductive tube hinge seat 16 fixedly connected to the vertical plate 112 of the support beam 11 by threaded fasteners is provided.
  • the conductive tube hinge seat 16 is hinged with the swing seat 14 to provide the swing seat 14 A support, the conductive tube hinge seat 16 includes a bottom plate spanning between the bottom surfaces of the two support beams 11, and also includes two support plates that are fitted and fixed on the inner sides of the two vertical plates. The lower sides of the two support plates are connected to The bottom plate is fixedly connected.
  • the two supporting beams 11 form a stable frame structure through the flange mounting seat 18 and the conductive tube hinge seat 16.
  • pillar insulators 60 matched with the conductive base 10, which are respectively a support insulator fixedly connected to the bottom of the conductive tube hinge seat 16 to support the conductive base 10, and a transmission insulator with a drive shaft arranged inside.
  • the transmission insulator is not directly connected with The conductive base 10 is matched.
  • a drive flange 19 arranged axially in the vertical direction is connected to the bottom of the drive arm 12 through an adapter shaft, and the drive flange is passed through a rotation stop pin. 80 realizes the anti-rotation cooperation with the adapter shaft. When the driving flange 19 rotates, it can drive the adapter shaft and the driving arm 12 to move synchronously.
  • the transmission insulator cooperates with the driving flange 19 to support the conductive base 10.
  • the lower conductive tube 20 and the support beam 11 of the conductive base 10 are electrically connected by a conductive tape 70.
  • One end of the conductive tape 70 is connected to the conductive tube through a connecting piece 71, and the other end is connected to the transverse plate of the supporting beam 11 through a connecting piece 71. ⁇ 111 ⁇ Body 111.
  • the wiring board 17 is a Y-shaped structure, and the main body of the wiring board 17 is arranged in the horizontal direction.
  • the lower conductive tube 20 is also provided with a rack that moves along the axial direction of the lower conductive tube 20 and a gear matched with the rack.
  • the gear is in transmission connection with the transmission arm 31 of the upper conductive tube 30.
  • the upper conductive tube 30 has an accurate movement track through the gear and rack meshing transmission to ensure the accuracy of the opening and closing actions.
  • a gear box 21 is provided at one end of the lower conductive tube 20 close to the upper conductive tube 30, and the gear box 21 is formed by a combination of two parts, and its radial dimension is smaller than that of the lower conductive tube 20.
  • the extension direction of the conductive base 10 is defined as the front-rear direction.
  • the wiring board 17 is located at the front end of the conductive base 10
  • the swing base 14 is located at the rear end of the conductive base 10.
  • the limit angle steel 15 and the flange mounting seat 18 are arranged perpendicularly.
  • the driving arm 12 rotates forward, it will drive the swing seat 14 to swing forward.
  • the driving arm 12 rotates to the limit position.
  • the upper and front limit screws 151 of the angle steel 15 are matched, the upper conductive tube 30 and the lower conductive tube 20 are in a folded state, and the isolating switch is opened at this time.
  • the structure of the supporting beam can be adjusted accordingly, for example, square steel, cylindrical steel pipe, I-beam and other extensions are used.
  • the arrangement position of the wiring board on the support beam can be adjusted, for example, set in the middle of the support beam, or set at the end of the support beam.
  • the two supports Reinforcing plates are arranged between the beams.
  • the structure of the wiring board can be adjusted accordingly, such as a square structure or a circular structure.
  • the driving device that drives the driving arm can be directly restricted to limit the rotation angle of the driving arm, and it is not necessary to set a limit structure on the support beam to restrict the driving arm's action.
  • the structure of the limit plate can be adjusted accordingly, such as a flat plate.
  • the conductive tube hinge seat can be arranged on the top of the two supporting beams, instead of being arranged by sinking between the two supporting beams.
  • the structure of the conductive base in the embodiment of the present application is the same as the conductive base structure in the above-mentioned isolation switch embodiment, and the method of use is also the same, so the implementation of the conductive base will not be repeated.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

La présente invention concerne un commutateur d'isolation et une base conductrice associée, qui se rapportent au domaine technique des dispositifs de commutation à haute tension, et qui peuvent résoudre les problèmes de l'état de la technique dans lesquels des bases conductrices présentent un coût élevé et un effet de dissipation de chaleur est médiocre. Le commutateur d'isolation comprend un ensemble tube conducteur et une base conductrice (10) utilisée pour monter l'ensemble tube conducteur, et la base conductrice comprend un corps de base ; le corps de base est pourvu d'une base de charnière de tube conducteur (16) pour articuler l'ensemble tube conducteur, et d'une base de montage de bride (18) qui assemble de manière rotative une bride d'entraînement correspondante (10) ; le corps de base est formé à partir de deux poutres de support (11) disposées à un intervalle ; la base de charnière de tube conducteur (16) et la base de montage de bride (18) sont situées au niveau de deux extrémités des poutres de support (11) respectivement et sont fixées entre les deux poutres de support (11) ; et les poutres de support (11), la base de charnière de tube conducteur (16) et la base de montage de bride (18) constituent une structure de type cadre.
PCT/CN2019/130783 2019-03-14 2019-12-31 Commutateur d'isolation et base conductrice associée WO2020181898A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910194492.5A CN109950085A (zh) 2019-03-14 2019-03-14 隔离开关及其导电底座
CN201910194492.5 2019-03-14

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WO2020181898A1 true WO2020181898A1 (fr) 2020-09-17

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950085A (zh) * 2019-03-14 2019-06-28 河南平高电气股份有限公司 隔离开关及其导电底座

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Publication number Priority date Publication date Assignee Title
JP2005332636A (ja) * 2004-05-18 2005-12-02 Fuji Electric Fa Components & Systems Co Ltd フック棒操作式断路器
CN201387837Y (zh) * 2009-04-28 2010-01-20 山东泰开隔离开关有限公司 双柱水平伸缩式户外三相高压交流隔离开关
CN201673845U (zh) * 2010-06-04 2010-12-15 重庆市电力公司教育培训中心 大电流户外隔离开关
CN107633975A (zh) * 2017-10-20 2018-01-26 湖南长高高压开关集团股份公司 一种用于接地开关的双连杆传动装置
CN109950085A (zh) * 2019-03-14 2019-06-28 河南平高电气股份有限公司 隔离开关及其导电底座

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Publication number Priority date Publication date Assignee Title
CN203367122U (zh) * 2013-07-08 2013-12-25 江苏南瑞泰事达电气有限公司 一种折臂式高压隔离开关

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005332636A (ja) * 2004-05-18 2005-12-02 Fuji Electric Fa Components & Systems Co Ltd フック棒操作式断路器
CN201387837Y (zh) * 2009-04-28 2010-01-20 山东泰开隔离开关有限公司 双柱水平伸缩式户外三相高压交流隔离开关
CN201673845U (zh) * 2010-06-04 2010-12-15 重庆市电力公司教育培训中心 大电流户外隔离开关
CN107633975A (zh) * 2017-10-20 2018-01-26 湖南长高高压开关集团股份公司 一种用于接地开关的双连杆传动装置
CN109950085A (zh) * 2019-03-14 2019-06-28 河南平高电气股份有限公司 隔离开关及其导电底座

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