阅读说明：本技术 一种中压环保型开关组件 (Medium-voltage environment-friendly switch assembly ) 是由 王军 于庆瑞 黄文辉 于 2020-12-28 设计创作，主要内容包括：本发明提供了一种中压环保型开关组件包括竖直放置的安装板、固定在所述安装板上的三工位隔离接地开关和断路器,所述断路器安装在所述三工位隔离接地开关的正下方,所述三工位隔离接地开关上从左到右依次设置有分别固定连接在所述断路器上的接地触头座、中间触头座和隔离触头座。本发明包括三工位隔离接地开关和断路器,断路器主要用于关合、承载和开断正常回路条件下的电流,同时能在规定的时间内关合、承载和开断异常回路条件下的电流。三工位隔离接地开关主要用于检修时隔离高压电源、工作时连通承载回路电流,用于检修设备时,让回路接地,保证停电检修时检修人员人身安全。(The invention provides a medium-voltage environment-friendly switch assembly which comprises a vertically arranged mounting plate, a three-station isolation grounding switch and a circuit breaker, wherein the three-station isolation grounding switch and the circuit breaker are fixed on the mounting plate, the circuit breaker is arranged under the three-station isolation grounding switch, and a grounding contact seat, a middle contact seat and an isolation contact seat which are fixedly connected to the circuit breaker are sequentially arranged on the three-station isolation grounding switch from left to right. The three-station isolating grounding switch comprises a three-station isolating grounding switch and a breaker, wherein the breaker is mainly used for closing, bearing and breaking current under the condition of a normal loop and can close, bear and break current under the condition of an abnormal loop within specified time. The three-station isolation grounding switch is mainly used for isolating a high-voltage power supply during maintenance and communicating and bearing loop current during working, and is used for grounding a loop during maintenance of equipment, so that personal safety of maintenance personnel during power failure maintenance is guaranteed.)

1. A medium voltage environment-friendly switch assembly is characterized in that: medium voltage environment-friendly switch subassembly includes vertical mounting panel of placing, fixes three station isolation earthing switch and circuit breaker on the mounting panel, the circuit breaker is installed under three station isolation earthing switch, three station isolation earthing switch from left to right has set gradually respectively fixed connection and is in ground connection contact seat, middle contact seat and isolation contact seat on the circuit breaker.

2. The medium voltage environmental protection switch assembly according to claim 1, wherein: the three-station isolation grounding switch comprises a driving screw rod, wherein the central axis of the driving screw rod is horizontally arranged and penetrates through the mounting plate, a magnetic fluid sealing element is used for the driving screw rod to penetrate through and be fastened with a screw on the mounting plate, a grounding contact seat is sleeved on the driving screw rod, a first grounding contact spring and a grounding bus are arranged on the grounding contact seat, a second grounding spring contact and a first isolation spring contact are arranged on an intermediate contact seat, a moving contact, the central axis of which coincides with the central axis of the driving screw rod, is arranged on the right side of the driving screw rod, the intermediate contact seat is sleeved on the driving screw rod and the contact seat, and a second isolation spring contact and an upper outgoing line are arranged on the isolation contact seat.

3. The medium voltage environmental protection switch assembly according to claim 2, wherein: and a sealing ring is arranged between the mounting plate and the magnetic fluid sealing element.

4. The medium voltage environmental protection switch assembly according to claim 1, wherein: the circuit breaker includes that the central axis level sets up and passes the insulating pull rod subassembly of mounting panel, the uide bushing confession the insulating pull rod passes and fixed mounting is in on the mounting panel, supplies the insulating pull rod passes and fixed mounting is in installation base on the mounting panel, one of exceeding the mounting panel on the insulating pull rod subassembly serves and is provided with rod end joint bearing, be provided with on the installation base and be located the outside solid utmost point post that seals of insulating pull rod subassembly, gu seal utmost point post with ground contact seat middle contact seat with keep apart the contact seat and link to each other.

5. The medium voltage environmental protection switch assembly according to claim 4, wherein: the insulating pull rod assembly comprises an insulating pull rod insert rod, wherein the central axis of the insulating pull rod insert rod is horizontally arranged, an insulating pull rod epoxy piece and an insulating pull rod insert piece sleeve are molded at one end of the insulating pull rod insert rod far away from the rod end joint bearing through pouring, and the insulating pull rod insert piece sleeve is positioned at the end part of the insulating pull rod epoxy piece.

6. The medium voltage environmental protection switch assembly according to claim 5, wherein: the insulating pull rod insert sleeve is provided with a guide rod, a disc spring group and a nut, wherein the guide rod is superposed with the central axis of the insulating pull rod insert rod, and the disc spring group and the nut are positioned between the guide rod and the insulating pull rod insert sleeve.

7. The medium voltage environmental protection switch assembly according to claim 6, wherein: the guide rod is provided with a sliding conductive rod with a central axis coinciding with the central axis of the guide rod, and the sliding conductive rod is provided with a sliding contact seat and a sliding spring contact positioned between the sliding contact seat and the sliding conductive rod.

8. The medium voltage environmental protection switch assembly according to claim 4, wherein: the mounting panel with be provided with sealing device between the uide bushing, the uide bushing with be provided with X type sealing washer between the insulating draw bar assembly.

9. The medium voltage environmental protection switch assembly according to claim 4, wherein: the solid-sealed polar pole comprises a polar pole epoxy piece arranged on the mounting base, an arc extinguish chamber arranged in the polar pole epoxy piece, a grounding contact mounting insert arranged on the polar pole epoxy piece, a transition outgoing line, an isolation contact seat mounting insert and a lower outgoing line, wherein the grounding contact mounting insert is connected with the grounding contact seat, the transition outgoing line is connected with the middle contact seat, and the isolation contact seat mounting insert is connected with the isolation contact seat.

Technical Field

The present invention relates to a medium voltage environment-friendly switch assembly, and more particularly, to a high-integration and high-reliability medium voltage environment-friendly switch assembly.

Background

With the continuous progress of scientific technology and the continuous enhancement of environmental protection consciousness, the requirements of human beings on the switch equipment are higher and higher, the environment-friendly, energy-saving, high-reliability, maintenance-free and low-cost switch equipment becomes the development direction of the switch equipment, the environment-friendly C-GIS has great significance on environmental protection, and the development prospect of related products is wide.

The existing medium-voltage C-GIS switch equipment adopts a multi-air-chamber structure, the circuit breaker is an air chamber, the isolation grounding switch is an air chamber, the product structure is complex, and the production cost is high. The medium-voltage environment-friendly C-GIS switch component integrated unit disclosed by the invention has the advantages of high integration of structural member functions, simple structure, small volume, few parts, low production cost and high reliability. The method is particularly suitable for ring network power distribution systems.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a medium-voltage environment-friendly switch assembly, which has the following specific scheme:

the invention relates to a medium-voltage environment-friendly switch component, which is characterized in that: medium voltage environment-friendly switch subassembly includes vertical mounting panel of placing, fixes three station isolation earthing switch and circuit breaker on the mounting panel, the circuit breaker is installed under three station isolation earthing switch, three station isolation earthing switch from left to right has set gradually respectively fixed connection and is in ground connection contact seat, middle contact seat and isolation contact seat on the circuit breaker.

The technical problem to be solved by the present invention can be further solved by the following technical solutions, the three-position isolating grounding switch comprises a driving screw rod with a horizontal central axis and penetrating through the mounting plate, a magnetic fluid sealing piece is used for the driving screw rod to penetrate through and is fastened on the mounting plate through screws, the grounding contact seat is sleeved on the driving screw rod, a first grounding contact spring and a grounding bus are arranged on the grounding contact seat, the middle contact seat is provided with a second grounding spring contact and a first isolation spring contact, the driving screw rod is provided with a moving contact the central axis of which coincides with the central axis of the driving screw rod, the moving contact is positioned on the right side of the driving screw rod, the middle contact seat is sleeved on the driving screw rod and the contact seat, and the isolation contact seat is provided with a second isolation spring contact and an upper outgoing line.

The technical problem to be solved by the invention can be further solved by the following technical scheme that a sealing ring is arranged between the mounting plate and the magnetic fluid sealing element.

The technical problem to be solved by the invention can be further solved by adopting the following technical scheme that the circuit breaker comprises an insulating pull rod assembly, wherein the central axis of the insulating pull rod assembly is horizontally arranged and penetrates through the mounting plate, the guide sleeve is used for enabling the insulating pull rod to penetrate through and be fixedly mounted on the mounting plate, the insulating pull rod penetrates through and is fixedly mounted on a mounting base on the mounting plate, a rod end joint bearing is arranged at one end, exceeding the mounting plate, of the insulating pull rod assembly, a solid-sealed polar pole positioned outside the insulating pull rod assembly is arranged on the mounting base, and the solid-sealed polar pole is connected with the grounding contact seat, the middle contact seat and the isolation contact seat.

The technical problem to be solved by the invention can be further solved by adopting the following technical scheme that the insulating pull rod assembly comprises an insulating pull rod insert rod, an insulating pull rod epoxy piece and an insulating pull rod insert sleeve, wherein the insulating pull rod insert rod is horizontally arranged on the central axis, the insulating pull rod epoxy piece is injection molded at one end of the insulating pull rod insert rod far away from the rod end joint bearing, and the insulating pull rod insert sleeve is positioned at the end part of the insulating pull rod epoxy piece.

The technical problem to be solved by the invention can be further solved by the following technical scheme that a guide rod which is superposed with the central axis of the insulating pull rod insert rod, a disc spring group positioned between the guide rod and the insulating pull rod insert sleeve and a nut are assembled on the insulating pull rod insert sleeve.

The technical problem to be solved by the invention can be further solved by the following technical scheme that a sliding conductive rod with a central axis coinciding with the central axis of the guide rod is arranged on the guide rod, and a sliding contact seat and a sliding spring contact positioned between the sliding contact seat and the sliding conductive rod are arranged on the sliding conductive rod.

The technical problem to be solved by the invention can be further solved by adopting the following technical scheme that a sealing device is arranged between the mounting plate and the guide sleeve, and an X-shaped sealing ring is arranged between the guide sleeve and the insulating pull rod assembly.

The technical problem to be solved by the invention can be further solved by adopting the following technical scheme that the solid-sealed polar pole comprises a polar pole epoxy member arranged on the mounting base, an arc extinguish chamber positioned in the polar pole epoxy member, a grounding contact mounting insert, a transition outgoing line, an isolation contact seat mounting insert and a lower outgoing line positioned on the polar pole epoxy member, wherein the grounding contact mounting insert is connected with the grounding contact seat, the transition outgoing line is connected with the middle contact seat, and the isolation contact seat mounting insert is connected with the isolation contact seat.

Compared with the prior art, the invention has the beneficial effects that: the three-station isolating grounding switch comprises a three-station isolating grounding switch and a breaker, wherein the breaker is mainly used for closing, bearing and breaking current under the condition of a normal loop and can close, bear and break current under the condition of an abnormal loop within specified time. The three-station isolation grounding switch is mainly used for isolating a power supply during maintenance and communicating a bearing loop current during working, and is used for grounding a loop during maintenance of equipment, so that the personal safety of maintenance personnel during power failure maintenance is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a medium voltage environment-friendly switch assembly according to the present invention.

Fig. 2 is a top view of a medium voltage environmental protection switch assembly according to the present invention.

In the figure: 1-mounting plate, 201-magnetic fluid sealing element, 202-grounding bus, 203-grounding contact seat, 204-first grounding spring contact, 205-strong nylon driving screw rod, 206-second grounding spring contact, 207-middle contact seat, 208-first grounding spring contact, 209-moving contact, 210-second grounding spring contact, 211-isolating contact seat, 212-upper outlet wire, 213-sealing ring, 301-mounting base, 302-guide sleeve, 303-sealing device, 304-rod end joint bearing, 305-X-shaped sealing ring, 306-insulating pull rod insert rod, 307-grounding contact mounting insert, 308-insulating pull rod epoxy, 309-insulating pull rod insert sleeve, 310-disc spring group, 311-guide rod, guide rod, 312-nut, 313-transition outgoing line, 314-sliding contact seat, 315-sliding spring contact, 316-sliding conductive rod, 317-arc extinguish chamber, 318-pole epoxy part, 319-isolation contact seat installation insert and 320-lower outgoing line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in the figure, the medium voltage environment-friendly switch assembly that this embodiment provided includes vertical mounting panel 1 of placing, installs three station isolation earthing switch and circuit breaker on mounting panel 1, and the circuit breaker is installed under three station isolation earthing switch, has set gradually ground contact seat 203, middle contact seat 207 and isolation contact seat 211 on the circuit breaker respectively from left to right on three station isolation earthing switch. The three-station isolating grounding switch comprises a three-station isolating grounding switch and a breaker, wherein the breaker is mainly used for closing, bearing and breaking current under the condition of a normal loop and can close, bear and break current under the condition of an abnormal loop within specified time. The three-station isolation grounding switch is mainly used for isolating a power supply during maintenance and communicating a bearing loop current during working, and is used for grounding a loop during maintenance of equipment, so that the personal safety of maintenance personnel during power failure maintenance is ensured.

The three-station isolation grounding switch comprises a driving screw rod, wherein the central axis of the driving screw rod is horizontally arranged and penetrates through the mounting plate 1, a magnetic fluid sealing member 201 is used for the driving screw rod to penetrate through and be fastened on the mounting plate 1 through a screw, a grounding contact seat 203 is sleeved on the driving screw rod, a first grounding contact spring and a grounding bus 202 are arranged on the grounding contact seat 203, a second grounding spring contact 206 and a first isolation spring contact 208 are arranged on an intermediate contact seat 207, a moving contact 209 with the central axis coincident with the central axis of the driving screw rod is arranged on the driving screw rod, the moving contact 209 is located on the right side of the driving screw rod, the intermediate contact seat 207 is sleeved on the driving screw rod and the contact seat, and a second isolation spring contact. A seal ring 213 is provided between the mounting plate 1 and the magnetic fluid seal 201.

The circuit breaker comprises an insulating pull rod assembly, wherein the central axis of the insulating pull rod assembly is horizontally arranged and penetrates through a mounting plate 1, a guide sleeve 302 is used for enabling the insulating pull rod to penetrate through and be fixedly mounted on the mounting plate 1, a mounting base 301 is used for enabling the insulating pull rod to penetrate through and be fixedly mounted on the mounting plate 1, a rod end joint bearing 304 is arranged at one end, exceeding the mounting plate 1, of the insulating pull rod assembly, a solid-sealed polar pole located outside the insulating pull rod assembly is arranged on the mounting base 301, and the solid-sealed polar pole is connected with a grounding contact seat 203, a middle. The insulated pull rod assembly comprises an insulated pull rod insert rod 306 with a horizontal central axis, an insulated pull rod epoxy piece 308 which is injection molded at one end of the insulated pull rod insert rod 306 far away from the rod end joint bearing 304, and an insulated pull rod insert sleeve 309 which is positioned at the end part of the insulated pull rod epoxy piece 308.

The insulating pull rod insert sleeve 309 is fitted with a guide rod 311 coinciding with the central axis of the insulating pull rod insert rod 306, a disc spring assembly 310 and a nut 312 located between the guide rod 311 and the insulating pull rod insert sleeve 309. The guide rod 311 is provided with a sliding conductive rod 316 with a central axis coinciding with the central axis of the guide rod 311, and the sliding conductive rod 316 is provided with a sliding contact seat 314 and a sliding spring contact 315 located between the sliding contact seat 314 and the sliding conductive rod 316. A sealing device 303 is arranged between the mounting plate 1 and the guide sleeve 302, and an X-shaped sealing ring 305 is arranged between the guide sleeve 302 and the insulating pull rod assembly. The solid-sealed polar pole comprises a polar pole epoxy member 318 installed on the installation base 301, an arc extinguish chamber 317 located in the polar pole epoxy member 318, a grounding contact installation insert 307, a transition outgoing line 313, an isolation contact seat installation insert 319 and a lower outgoing line 320 located on the polar pole epoxy member 318, wherein the grounding contact installation insert 307 is connected with the grounding contact seat 203, the transition outgoing line 313 is connected with the middle contact seat 207, and the isolation contact seat installation insert 319 is connected with the isolation contact seat 211.

The working principle and the working process are explained as follows:

the core element of the circuit breaker is an arc extinguish chamber 317, a fixed contact and a movable contact 209 are arranged in the arc extinguish chamber 317, when the fixed contact is contacted with the movable contact 209, the circuit breaker is in a switching-on position and is connected with a loop, normal loop current and abnormal loop current within a specified time can be borne, and when the fixed contact is separated from the movable contact 209 and keeps a certain distance, the circuit breaker is in a switching-off position. The rod end joint bearing 304, the insulating pull rod insert rod 306, the insulating pull rod epoxy piece 308, the insulating pull rod insert sleeve 309, the disc spring group 310, the guide rod 311 and the sliding conductive rod 316 form a transmission piece combination of the circuit breaker, and the rod end joint bearing 304 is connected with an operating mechanism of the circuit breaker. When the circuit breaker is in a switching-on position, under the driving of the operating mechanism, the transmission part combination of the circuit breaker drives the moving contact 209 of the arc extinguish chamber 317 to move leftwards, so that the switching-off operation of the circuit breaker is realized, and the current under the condition of a normal loop and the current under the condition of an abnormal loop can be switched off; when the circuit breaker is at the opening position, the transmission part combination of the circuit breaker drives the moving contact 209 of the arc extinguish chamber 317 to move rightwards under the driving of the operating mechanism, so that the closing operation of the circuit breaker is realized, and the current under the normal loop condition and the current under the abnormal loop condition can be closed. The pole epoxy 318 is a support of the circuit breaker, and is used for supporting the fixed arc extinguish chamber 317, the transition outgoing line 313 and the lower outgoing line 320 to be connected, and the like. The lower outgoing line 320 is used for connecting a loop bus and a fixed contact of an arc extinguish chamber 317, a moving contact 209 of the arc extinguish chamber 317 is communicated with a sliding conductive rod 316, the moving contact is connected with a transition outgoing line 313 through a sliding spring contact 315 and a sliding contact seat 314, and the transition outgoing line 313 is communicated with a middle contact seat 207 of the three-station isolation grounding switch.

When the three-station isolation grounding switch is in the middle position (the isolation switch is in the opening position, and the grounding switch is in the opening position), namely the moving contact 209 is positioned inside the middle contact seat 207, the three-station isolation grounding switch operating mechanism drives the moving contact 209 to move rightwards through a transmission part, the middle contact seat 207 is communicated with the isolation contact seat 211 through the moving contact 209, and the three-station isolation grounding switch is in the closing position (the isolation switch is in the closing position, and the grounding switch is in the opening position) of the isolation switch, so that the closing operation of the isolation switch is realized; when the three-station isolation grounding switch is in the switch-on position of the isolation switch (the isolation switch is in the switch-on position, and the grounding switch is in the switch-off position), the three-station isolation grounding switch operating mechanism drives the moving contact 209 to move leftwards through the transmission part, the moving contact 209 is positioned in the middle contact seat 207, the three-station isolation grounding switch is in the middle position (the isolation switch is in the switch-off position, and the grounding switch is in the switch-off position), and the switch-off operation of the isolation switch is realized; when the three-station isolation grounding switch is in the middle position (the isolation switch is in the opening position, the grounding switch is in the opening position), namely the moving contact 209 is positioned in the middle contact seat 207, the three-station isolation grounding switch operating mechanism drives the moving contact 209 to move leftwards through a transmission part, the middle contact seat 207 is connected with the grounding contact seat 203 through the moving contact 209, and the three-station isolation grounding switch is in the closing position (the isolation switch is in the opening position, the grounding switch is in the closing position) of the grounding switch, so that the closing operation of the grounding switch is realized; when the three-station isolation grounding switch is in the switching-on position of the grounding switch (the isolation switch is in the switching-off position, and the grounding switch is in the switching-on position), the three-station isolation grounding switch operating mechanism drives the moving contact 209 to move rightwards through the transmission part, the moving contact 209 is positioned inside the middle contact seat 207, the three-station isolation grounding switch is in the middle position (the isolation switch is in the switching-off position, and the grounding switch is in the switching-off position), and the switching-off operation of the grounding switch is realized.

When the three-station isolation grounding switch is in the middle position (the isolation switch is in the opening position, and the grounding switch is in the opening position), the moving contact 209 is positioned in the middle contact seat 207, and the transition outgoing line 313, the sliding contact seat 314, the sliding conductive rod 316 and the arc extinguish chamber 317 of the circuit breaker are in the suspension position; when the three-station isolation grounding switch is in a grounding switch on position (the isolation switch is in an off position, and the grounding switch is in an on position), the middle contact seat 207 is communicated with the grounding contact seat 203 through the moving contact 209, and the transition outgoing line 313, the sliding contact seat 314, the sliding conducting rod 316 and the moving contact 209 of the arc extinguish chamber 317 of the circuit breaker are in the grounding position; when the three-station isolation grounding switch is in an isolation switch on position (the isolation switch is in the on position, and the grounding switch is in the off position), the middle contact seat 207 is connected with the isolation contact seat 211 through the moving contact 209, and the transition outgoing line 313, the sliding contact seat 314, the sliding conductive rod 316 and the moving contact 209 of the arc extinguish chamber 317 of the circuit breaker are in the on position. If the circuit breaker is in the closed position at this time, the upper outgoing line 212 and the lower outgoing line 320 are closed.

The above are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the scope of the present invention disclosed by the present invention, and all the persons skilled in the art belong to the scope of the present invention.