CN217720272U - Bus device for gas insulated metal enclosed switchgear - Google Patents
Bus device for gas insulated metal enclosed switchgear Download PDFInfo
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- CN217720272U CN217720272U CN202221472453.0U CN202221472453U CN217720272U CN 217720272 U CN217720272 U CN 217720272U CN 202221472453 U CN202221472453 U CN 202221472453U CN 217720272 U CN217720272 U CN 217720272U
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- bus bar
- insulator
- connection terminal
- connector
- insulated metal
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Abstract
The utility model discloses a generating line device for gas insulated metal enclosed switchgear, include: a bus bar, the bus bar comprising: a busbar housing having a first end and a second end, the first end having a first engagement end surface and the second end having a second engagement end surface; a hollow conductor tube disposed in the bus bar housing coaxially with the bus bar housing, having a first end portion and a second end portion, the conductor tube having a first connection terminal at the first end portion and a second connection terminal at the second end portion; and a shield base connected to the first connection terminal at the first end of the conductor tube. The bus device also comprises a contact finger seat, wherein the side of the shielding seat far away from the first end part of the conductor tube is connected with the shielding seat; a first insulator fixed to the first joint end face and connected to the contact finger seat; and a second insulator fixed to the second joint end face and connected to the second connection terminal. The utility model discloses a bus bar device can reduce use, simple structure and the leakproofness of insulator good.
Description
Technical Field
The utility model relates to a high-voltage apparatus technical field specifically relates to a generating line device for gas insulated metal enclosed switchgear (GIS).
Background
The existing bus bar device for gas insulated metal enclosed switchgear (GIS) currently uses the present bus bar in combination with an extended bus bar to extend the connection length of the bus bar, as shown in fig. 1, the existing bus bar device 1 includes the present bus bar 2, the present bus bar 2 includes the present bus bar housing 3, a conductor bar 4 located in the present bus bar housing 3; an extended bus 5 including an extended bus housing 6, a conductor bar 7 located within the delayed bus housing 6; a contact finger seat 8, an insulator 9 and a shielding conductor 10 connected between one end of the conductor bar 4 and one end of the conductor bar 7; an insulator 11 connected to the other end of the conductor bar 7; a contact finger base 12 and an insulator 13 connected to the other end of the conductor bar 4, and a predetermined SF is injected between the bus bar and the conductor bar6The gas acts as an insulating medium.
As can be seen from fig. 1, the device has a complex structure, various parts and components, so that the assembly process is complex, the assembly is laborious and time-consuming, and because the bus is combined with the extended bus for use, three insulators are configured, a sealing ring needs to be arranged between each insulator and the bus, so that the number of structures to be sealed is increased, air leakage can occur between each insulator and the bus, and the sealing performance of the bus device is reduced. Further, since the intermediate insulator is provided in the direction in which the bus bar device extends, the through-flow efficiency is deteriorated. In addition, in the conventional bus bar device, the conductor bar is used, so that the weight and cost of the bus bar are high.
In view of the above problems, no corresponding solution has been proposed at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a bus bar device for gas insulated metal enclosed switchgear, one of its purpose designs a longer bus bar device and replaces the original bus bar device that uses this generating line and extension generating line in combination, can reduce the use of insulator from this to reduce risks such as insulator discharge and gas leakage, the reliability increases, and bus bar device's simple structure, assembly are simple, with low costs and the leakproofness is good.
According to an aspect of the disclosed embodiments, a bus bar apparatus for a gas insulated metal enclosed switchgear includes: a bus bar, the bus bar comprising: a busbar housing having a first end and a second end, the first end having a first engagement end surface and the second end having a second engagement end surface; a hollow conductor tube disposed in the bus bar housing coaxially with the bus bar housing and having a first end portion on the same side as the first end of the bus bar housing and a second end portion on the same side as the second end of the bus bar housing, the conductor tube having a first connection terminal at the first end portion and a second connection terminal at the second end portion; and a shield base connected to the first connection terminal of the conductive tube at the first end of the conductive tube; the bus device also comprises a contact finger seat, wherein the contact finger seat is connected with the shielding seat at one side of the shielding seat far away from the first end part of the conductor tube; the first insulator is fixed to the first joint end surface of the bus bar shell and connected to the contact finger seat; and a second insulator fixed to the second joint end surface of the bus bar case and connected to the second connection terminal of the conductor tube.
In this way, by designing a longer bus bar device to replace the original bus bar device combining the bus bar and the extension bus bar, the use of the bus bar shell and the conductor, the use of the insulator, and the use of the related contact parts such as the contact finger seat, the shielding conductor, the bolt and the like can be reduced, so that the risks of insulator discharge, air leakage and the like are reduced, the reliability is increased, and the manufactured bus bar device has the advantages of simple structure, simple assembly, low cost and good sealing property. In addition, because no other insulator is arranged in the middle of the bus device, the through-flow efficiency is improved.
In one example according to the present embodiment, the conductor tube has a first internal thread at the first end portion, the shield base has a first through hole, the first connection terminal includes a first connection piece having a first screw hole at a center thereof, an outer wall of the first connection piece has a first external thread to be screwed into the first internal thread at the first end portion; and the first bolt sequentially passes through the first through hole and the first threaded hole to connect the shielding seat and the first connecting piece together.
In this way, by designing the first connecting member and the shield seat of the conductor tube, it is possible to connect with the insulator with a simple structure and fewer parts, thereby simplifying the structure and reducing the manufacturing cost.
In one example according to the present embodiment, the second connection terminal protrudes to the outside of the bus bar housing to be engaged with the second insulator.
In this way, the second connection terminal of the conductor tube can be directly connected to, i.e., engaged with, the insulator, thereby making it possible to simplify the connection structure of the bus bar and the insulator, reduce the number of connection components, make assembly simplified, reduce assembly time, reduce manufacturing cost, and improve through-flow efficiency.
In one example according to the present embodiment, the conductor tube has a second internal thread at the second end portion, the second insulator has a second screw hole, and the second connection terminal includes: and a second connector having a second through hole at a center thereof and a second external thread at an outer wall thereof to be threadedly coupled into the second internal thread at a second end thereof, wherein the second connector is coupled to the second insulator by passing a second bolt through the second through hole and the second threaded hole in this order.
In this way, by designing the second connecting member of the conductor tube, it is possible to connect with the insulator with a simple structure and fewer parts, thereby simplifying the structure, reducing the manufacturing cost, and facilitating the maintenance and assembly.
In one example according to the present embodiment, the first connector and the shield socket have a gap therebetween.
In one example according to the present embodiment, the second connector has a gap with the second insulator.
In this way, the gap ensures a reliable flow capacity and a reliable contact of the conductor tube with the shielding base and with the insert in the second insulator.
In one example according to this embodiment, the first connector also has at least three fitting holes surrounding the first threaded hole.
In one example according to the present embodiment, the second connector further has at least three fitting holes surrounding the second through hole.
In this way, it is possible to easily fit the first and second connectors in the conductor tube and to easily detach the first and second connectors from the conductor tube.
In one example according to the present embodiment, the first insulator includes a first insulator body, a first insert embedded in a center of the first insulator body for connection with the finger seat, and a first flange ring at an outer periphery of the first insulator body, and the first insulator is fixed to the first joint end surface by bolts through the first flange ring.
In one example according to the present embodiment, the second insulator includes a second insulator main body, a second insert embedded in a center of the second insulator main body for connection with the second connection terminal, and a second flange ring at an outer periphery of the second insulator main body, the second insulator being fixed to the second joint end surface by bolts through the second flange ring, wherein the second insert includes an insertion portion in which a threaded hole of the second insulator is opened and a flange portion at an outer side of the insertion portion, the insertion portion being inserted into the conductor pipe at the second end portion to be connected with the second connection member, the flange portion abutting against an end surface of the second end portion.
In this way, the second insulator can be joined with the conductor tube without other fittings, thereby simplifying the connection structure, the assembly process, reducing the assembly time, reducing the manufacturing cost, and increasing the reliability of through-flow.
It can be seen from the above solution that in the utility model, replace the original busbar device of this generating line of combination and extension generating line through a longer busbar device, compare the prior art busbar device that fig. 1 shows and can reduce the use of an insulator, from this simple structure, the assembly is simple, can reduce cost and improve busbar device's leakproofness to owing to replace the conductor bar with the conductor pipe, thereby can alleviate busbar device's quality, reduce busbar device's cost.
Drawings
The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:
fig. 1 is a schematic view of a cross section of a prior art bus bar arrangement for a switchgear.
Fig. 2 is a schematic illustration of a cross-section of a bus bar arrangement for a switchgear according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the following embodiments are provided to further explain the present invention in detail.
Fig. 2 is a schematic illustration of a cross-section of a bus bar arrangement for a switchgear according to an embodiment of the present disclosure. As shown in fig. 2, a bus bar device 20 for a switchgear according to an embodiment of the present disclosure includes: a bus bar 21, the bus bar 21 comprising: a busbar housing 22 having a first end 22a and a second end 22b, the first end 22a having a first engagement end surface and the second end 22b having a second engagement end surface; a hollow conductor tube 23 provided in the bus bar case 22 coaxially with the bus bar case 22, and SF is filled between the conductor tube 23 and the bus bar case 226An insulating gas as an insulating medium, and the conductor tube 23 has a first end portion 23a and a second end portion 23b, the first end portion 23a being on the same side as the first end 22a of the bus bar housing 22, the second end portion 23b being on the same side as the second end 22b of the bus bar housing 22, the conductor tube 23 having a first connection terminal 230 at the first end portion 23a and a second connection terminal 231 at the second end portion 23 b; and a shield holder 24, the shield holder 24 being connected to the first connection terminal 230 of the conductor tube 23 at the first end portion 23a of the conductor tube 23, the shield holder 24 being made of a conductor material.
The bus bar device 20 further comprises a contact finger seat 25, wherein the contact finger seat 25 is connected with the shielding seat 24 at one side of the shielding seat 24, which is far away from the first end 23a of the conductor tube 23; a first insulator 26 fixed to the first joint end surface of the bus bar case 22 and connected to the finger seat 25; and a second insulator 27 fixed to the second joint end surface of the bus bar housing 22 and connected to the second connection terminal 231 of the conductor tube 23.
For example, the finger seats 25 may comprise annular spring fingers and guide rings to ensure a reliable through-flow of the spring fingers and thereby to allow the shield seat 24 and the finger seats 25 to be slidably connected.
In addition, as shown in fig. 2, the first insulator 26 may be fixed to the first joint end surface of the bus bar case 22 by bolts, the second insulator 27 may be fixed to the second joint end surface of the bus bar case 22 by bolts, and the first insulator 26 and the second insulator 27 are basin-type insulators.
For example, as an example of a basin-type insulator, the first insulator 26 may include a first insulator body 261, a first insert 260 embedded in the center of the first insulator body 261 for connection with the finger seat 25, and a first flange ring 262 at the outer circumference of the first insulator body 261, through which the first insulator 26 is fixed to the first joint end surface of the bus bar housing 22 by bolts through the first flange ring 262.
The second insulator 27 includes a second insulator body 271, a second insert 270 embedded in the center of the second insulator body 271 for connection with the second connection terminal 231, and a second flange ring 274 at the outer periphery of the second insulator body 271, and the second insulator 27 is fixed to the second joint end surface of the bus bar case 22 by bolts through the second flange ring 274.
The first insert 260 and the second insert 270 may be made of metal. The first and second insulator bodies 261 and 271 may be made of epoxy, and the first and second flange rings 262 and 274 may be made of metal.
Furthermore, the conductor tube 23 has an internal thread at the first end 23a, the shield seat 24 has a through hole, the first connection terminal 230 of the conductor tube 23 includes a first connector 232, the center of the first connector 232 has a threaded hole, the outer wall of the first connector 232 has an external thread to be screwed into the internal thread of the conductor tube 23 at the first end 23a of the conductor tube 23; wherein the shielding seat 24 and the first connecting member 232 are connected together by passing the first bolt 28 through the through hole of the shielding seat 24 and the threaded hole of the first connecting member 232 in sequence.
The first connector 232 may also have at least three fitting holes H surrounding the threaded hole of the first connector 232, whereby it is possible to easily fit the first connector 232 into the conductor tube 23 and to detach the first connector 232 from the conductor tube 23.
Further, the second connection terminal 231 of the conductor tube 23 may be protruded to the outside of the bus bar housing 22 to be engaged with the second insulator 27, thereby being capable of being directly connected to the second insulator 27 without assistance and cooperation of other parts, thereby reducing the use of parts and simplifying the assembly procedure.
Specifically, the conductor tube 23 has an internal thread at the second end portion 23b, and the second connection terminal 231 of the conductor tube 23 includes: a second connecting member 233 having a through hole at the center thereof, the outer wall of the second connecting member 233 having an external thread to be screwed into the internal thread of the conductor tube 23 at the second end 23b of the conductor tube 23, wherein the second connecting member 233 is engaged with the second insulator 27 by passing a second bolt 29 through the through hole of the second connecting member 233 and the threaded hole of the second insulator 27 in this order. The second connector 233 may further have at least three fitting holes H surrounding the through-hole of the second connector 233.
In order to achieve the joining of the second connection terminal 231 to the second insulator 27, the second insert 270 includes an insertion portion 272 and a flange portion 273 outside the insertion portion 272, a screw hole of the second insulator 27 is opened in the insertion portion 272, the insertion portion 272 is inserted into the conductor tube 23 at the second end portion 23b of the conductor tube 23 to be connected to the second connector 233 of the conductor tube 23, and the flange portion 273 abuts on the end surface of the second end portion 23b of the conductor tube 23, thereby joining the second connection terminal 231 to the second insulator 27 without requiring any additional fitting.
Further, as shown in fig. 2, a gap may be provided between the first connecting member 232 and the shield seat 24, and a gap may be provided between the second connecting member 233 and the second insulator 27. The gap ensures the reliability of the through-flow structure, i.e. the reliable contact of the conductor tube with the shielding base and with the second insert in the second insulator.
Through the bus bar device of this disclosure, can realize following effect at least:
1) The use of an insulator and associated contact assembly and the associated cost are reduced.
2) The bus bar shell and the conductor in the shell are saved, and the corresponding cost is saved.
3) The risks of insulator discharge, electric leakage and the like are reduced, and the reliability is improved.
4) The production and assembly processes and time are reduced.
5) The bus bar device can be transported together with other components, so that the transportation cost and the field installation time are reduced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A bus bar assembly for a gas insulated metal enclosed switchgear, comprising:
a bus bar (21) comprising: a busbar housing (22) having a first end (22 a) and a second end (22 b), the first end (22 a) having a first engagement end surface and the second end (22 b) having a second engagement end surface; a hollow conductor tube (23) that is provided in the bus bar housing (22) coaxially with the bus bar housing (22) and has a first end portion (23 a) and a second end portion (23 b), the conductor tube (23) having a first connection terminal (230) at the first end portion (23 a) and a second connection terminal (231) at the second end portion (23 b); and a shield base (24), the shield base (24) being connected to the first connection terminal (230) at the first end (23 a);
a contact finger seat (25), wherein the contact finger seat (25) is connected with the shielding seat (24) on the side of the shielding seat (24) departing from the first end part (23 a);
a first insulator (26) fixed to the first joint end face and connected to the finger seat (25); and
a second insulator (27) fixed to the second joint end face and connected to the second connection terminal (231).
2. The bus bar device for gas-insulated metal-enclosed switchgear according to claim 1, characterized in that said conductor tube (23) has a first internal thread at said first end (23 a), said shielding seat (24) has a first through hole, said first connection terminal (230) comprises:
a first connector (232), the first connector (232) having a first threaded hole in the center thereof, the first connector (232) having a first external thread on the outer wall thereof for being threaded into the first internal thread at the first end (23 a);
wherein the shield seat (24) and the first connector (232) are connected together by passing a first bolt (28) through the first through hole and the first threaded hole in this order.
3. The bus bar arrangement for a gas insulated metal enclosed switchgear according to claim 1, characterized in that the second connection terminal (231) protrudes outside the bus bar housing (22) to engage with the second insulator (27).
4. The bus bar arrangement for gas-insulated metal-enclosed switchgear according to any one of claims 1 to 3, wherein said conductor tube (23) has a second internal thread at said second end (23 b), said second insulator (27) has a second threaded hole, said second connection terminal (231) comprises:
a second connection member (233) having a second through hole at the center of the second connection member (233), an outer wall of the second connection member (233) having a second external thread to be screwed into the second internal thread at the second end portion (23 b),
wherein the second connector (233) is coupled to the second insulator (27) by passing a second bolt (29) through the second through hole and the second screw hole in this order.
5. The bus bar arrangement for a gas insulated metal enclosed switchgear according to claim 2, characterized in that there is a gap between the first connector (232) and the shield seat (24).
6. The bus bar arrangement for a gas insulated metal enclosed switchgear according to claim 4, characterized in that there is a gap between the second connector (233) and the second insulator (27).
7. The bus bar arrangement for a gas insulated metal enclosed switchgear according to claim 2, characterized in that said first connector (232) further has at least three fitting holes (H) surrounding said first threaded hole.
8. The bus bar arrangement for a gas insulated metal enclosed switchgear according to claim 4, characterized in that said second connection member (233) further has at least three fitting holes (H) surrounding said second through hole.
9. The bus bar device for a gas-insulated metal-enclosed switchgear as claimed in claim 1, characterized in that the first insulator (26) comprises a first insulator body (261), a first insert (260) embedded in the center of the first insulator body (261) for connection with the finger seats (25), and a first flange ring (262) at the outer periphery of the first insulator body (261), the first insulator (26) being fixed to the first joint end face by bolts through the first flange ring (262).
10. The bus bar apparatus for a gas-insulated metal-enclosed switchgear according to claim 4, wherein the second insulator (27) comprises a second insulator body (271), a second insert (270) embedded in the center of the second insulator body (271) for connection with the second connection terminal (231), and a second flange ring (274) at the outer circumference of the second insulator body (271), the second insulator (27) being fixed to the second joint end surface by bolts through the second flange ring (274),
wherein the second insert (270) comprises an insertion portion (272) and a flange portion (273) outside the insertion portion (272), the second threaded hole being opened in the insertion portion (272), the insertion portion (272) being inserted into the conductor tube (23) at the second end portion (23 b) to be connected with the second connector (233), the flange portion (273) abutting against an end face of the second end portion (23 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472453.0U CN217720272U (en) | 2022-06-14 | 2022-06-14 | Bus device for gas insulated metal enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472453.0U CN217720272U (en) | 2022-06-14 | 2022-06-14 | Bus device for gas insulated metal enclosed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217720272U true CN217720272U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221472453.0U Active CN217720272U (en) | 2022-06-14 | 2022-06-14 | Bus device for gas insulated metal enclosed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217720272U (en) |
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2022
- 2022-06-14 CN CN202221472453.0U patent/CN217720272U/en active Active
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