CN117766333A - Heavy-current split insulation cylinder type pole for inflatable cabinet and working method thereof - Google Patents
Heavy-current split insulation cylinder type pole for inflatable cabinet and working method thereof Download PDFInfo
- Publication number
- CN117766333A CN117766333A CN202311797156.2A CN202311797156A CN117766333A CN 117766333 A CN117766333 A CN 117766333A CN 202311797156 A CN202311797156 A CN 202311797156A CN 117766333 A CN117766333 A CN 117766333A
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- CN
- China
- Prior art keywords
- insulating cylinder
- wire outlet
- outlet seat
- heat dissipation
- pull rod
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009413 insulation Methods 0.000 title description 2
- 230000017525 heat dissipation Effects 0.000 claims abstract description 35
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a high-current split insulating cylinder type pole for an inflatable cabinet and a working method thereof, belonging to the technical field of vacuum switches; the vacuum arc extinguishing device comprises an insulating cylinder vacuum arc extinguishing chamber, an upper wire outlet seat, a lower wire outlet seat and a pull rod; the upper wire outlet seat is fixedly connected with the inner wall of the end part of the insulating cylinder, and a plurality of heat dissipation holes are formed in the side wall of the insulating cylinder; the middle part of the upper wire outlet seat is connected with one end of the vacuum arc-extinguishing chamber, and the other end of the vacuum arc-extinguishing chamber is connected with the pull rod; the lower wire outlet seat is arranged outside the connection part of the vacuum arc extinguishing chamber and the pull rod, and the outer wall of the lower wire outlet seat is fixedly connected with the inner wall of the insulating cylinder. According to the invention, hot air around each conductive part of the pole can be convected with cold air outside the insulating cylinder from the heat dissipation window of the insulating cylinder nearby, so that the heat dissipation performance of the pole is greatly improved. The split insulating cylinder type pole has the advantages of multiple heat dissipation air channels, large area of the heat dissipation air channels and good heat dissipation effect. The problem that the heat dissipation of the switch equipment of the high-current inflatable cabinet is difficult can be effectively solved.
Description
Technical Field
The invention belongs to the technical field of vacuum switches, and relates to a high-current split insulating cylinder type pole for an inflatable cabinet and a working method thereof.
Background
The inflatable cabinet is also called as gas-insulated metal-enclosed switchgear, has the advantages of small volume, high reliability and the like, and is widely applied to places with severe environments such as high altitude, salt fog, pollution and the like and narrow spaces. Along with the limited use of FS6 gas in the international range, the advantage of using dry air, nitrogen, etc. as the insulating gas of the environment-friendly type air charging cabinet is more obvious, and the market demand is increasing. Because the heat dispersion of the dry air and the nitrogen under the same pressure is far worse than that of SF6 gas, the environmental-friendly type air charging cabinet firstly solves the temperature rise problem in the design process, and particularly the temperature rise of the high-current environmental-friendly type air charging cabinet is very difficult.
The gas-filled cabinet generally employs a pole as a vacuum break to extinguish the arc. The pole mainly comprises a solid sealing structure and an insulating cylinder structure. In terms of heat dissipation, the vacuum arc extinguishing chamber, the upper outgoing line and the lower outgoing line are cast into a whole by the solid sealing structure chamber, and most of conductive parts of the solid sealing structure chamber are encapsulated in epoxy resin, so that heat dissipation of the solid sealing structure chamber is seriously influenced. The existing insulating cylinder mostly adopts an integral structure and is mainly an air duct which is penetrated up and down, and heat dissipation is limited to a certain extent.
Disclosure of Invention
The invention aims to solve the technical problem that an insulating cylinder of a pole is not good enough in heat dissipation performance in the prior art, and provides a high-current split insulating cylinder pole for an inflatable cabinet and a working method thereof.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
the invention provides a high-current split insulating cylinder type pole for an inflatable cabinet, which comprises an insulating cylinder vacuum arc extinguishing chamber, an upper wire outlet seat, a lower wire outlet seat and a pull rod; the upper wire outlet seat is fixedly connected with the inner wall of the end part of the insulating cylinder, and a plurality of heat dissipation holes are formed in the circumferential direction of the side wall of the insulating cylinder; the middle part of the upper wire outlet seat is connected with the static end of the vacuum arc-extinguishing chamber, and the movable end of the vacuum arc-extinguishing chamber is connected with the pull rod; the lower wire outlet seat is arranged outside the connection part of the vacuum arc extinguishing chamber and the pull rod, and the outer wall of the lower wire outlet seat is fixedly connected with the inner wall of the insulating cylinder.
Further, the insulating cylinder is of a cuboid structure.
Further, the insulating cylinder is of a split structure and is composed of two parts of structures which are symmetrical along the axis of the insulating cylinder.
Further, the radiating holes are symmetrically arranged along the axis of the insulating cylinder.
Further, the pull rod is an insulating pull rod.
Further, the connection mode between the vacuum arc extinguishing chamber and the pull rod is flexible connection.
Further, the upper wire outlet seat is connected with the insulating cylinder in a welding or bolt connection mode.
Further, the lower wire outlet seat is connected with the insulating cylinder in a welding or bolt connection mode.
In a second aspect, the invention provides a working method of the high-current split insulating cylinder type polar column for the gas-filled cabinet, which comprises the following steps:
the pull rod drives the movable end of the vacuum arc-extinguishing chamber to move along the axial direction of the insulating cylinder, and hot air in the insulating cylinder is discharged through the radiating holes at the two ends and the side wall of the insulating cylinder and is subjected to convection with cold air outside the insulating cylinder so as to achieve the radiating effect.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a large-current split insulating cylinder type pole for an inflatable cabinet and a working method thereof. Therefore, the 6 side surfaces of the pole are provided with large-area heat dissipation windows, and the 6 side surfaces form large-area heat dissipation air channels in 3 directions (x, y and z directions). The hot air around each conductive part of the pole can be convected with the cold air outside the insulating cylinder nearby from the heat dissipation window of the insulating cylinder, so that the heat dissipation performance of the pole is greatly improved. The split insulating cylinder type pole has the advantages of multiple heat dissipation air channels, large area of the heat dissipation air channels and good heat dissipation effect. The problem that the heat dissipation of the switch equipment of the high-current inflatable cabinet is difficult can be effectively solved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of the overall structure of the present invention;
fig. 2 is a view showing an assembly process of the insulating cylinder of the present invention.
Wherein: 1-an insulating cylinder; 2-a vacuum arc extinguishing chamber; 3-an upper wire outlet seat; 4-a lower wire outlet seat; 5-pull rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1 and 2, the embodiment of the invention discloses a large-current split insulating cylinder type pole for an inflatable cabinet, which comprises an insulating cylinder 1, a vacuum arc extinguishing chamber 2, an upper wire outlet seat 3, a lower wire outlet seat 4 and a pull rod 5; the upper wire outlet seat 3 is fixedly connected with the inner wall of the end part of the insulating cylinder 1, and a plurality of heat dissipation holes are formed in the circumferential direction of the side wall of the insulating cylinder 1; the middle part of the upper wire outlet seat 3 is connected with the static end of the vacuum arc-extinguishing chamber 2, and the movable end of the vacuum arc-extinguishing chamber 2 is connected with the pull rod 5; the outer of the junction of the vacuum arc-extinguishing chamber 2 and the pull rod 5 is provided with the lower wire outlet seat 4, and the outer wall of the lower wire outlet seat 4 is fixedly connected with the inner wall of the insulating cylinder 1. The edge cylinder type pole has the advantages of multiple heat dissipation air channels, large area of the heat dissipation air channels and good heat dissipation effect. The problem that the heat dissipation of the switch equipment of the high-current inflatable cabinet is difficult can be effectively solved.
In one possible embodiment of the present invention, the insulating cylinder 1 has a rectangular parallelepiped structure. The insulating cylinder 1 is of a split structure and consists of two parts of structures which are symmetrical along the axis of the insulating cylinder.
In one possible embodiment of the invention, the tie rod 5 is an insulating tie rod. The radiating holes are symmetrically arranged along the axis of the insulating cylinder 1, the shape of the radiating holes can be any shape, and the number of the radiating holes can be 1 or more. The plurality of heat dissipation windows increases the heat dissipation effect.
In one possible embodiment of the present invention, the connection between the vacuum interrupter 2 and the pull rod 5 is a flexible connection. The upper wire outlet seat 3 is connected with the insulating cylinder 1 in a welding or bolt connection mode. The lower wire outlet seat 4 is connected with the insulating cylinder 1 in a welding or bolt connection mode.
The embodiment of the invention provides a working method of a high-current split insulating cylinder type polar column for an inflatable cabinet, which comprises the following steps:
the pull rod 5 drives the movable end of the vacuum arc-extinguishing chamber 2 to move along the axial direction of the insulating cylinder 1, hot air in the insulating cylinder 1 is discharged from the radiating holes at the two ends and the side wall of the insulating cylinder 1, and convection is carried out with cold air outside the insulating cylinder 1 to achieve the radiating effect.
The working principle of the invention is as follows:
the pole comprises an insulating cylinder 1, a vacuum arc-extinguishing chamber 2, an upper wire outlet seat 3, a lower wire outlet seat 4, an insulating pull rod 5 and the like. The insulating cylinder 1 is designed as a split type and comprises two parts with the same structure. One side of each part is provided with a plurality of heat dissipation windows, the two parts are symmetrical along the axis, and the number of the heat dissipation windows of the two sides is 2, 4, 6 and the like. Meanwhile, a heat dissipation air duct penetrating through the dynamic and static ends of the pole is naturally formed between the two parts of the insulating cylinder 1 after installation along the axial direction. The shape of the whole pole is cuboid, 6 side faces of the pole are provided with large-area heat dissipation windows, and the 6 side faces form large-area heat dissipation air channels in 3 directions (x, y and z directions). In the current carrying process, hot air in the insulating cylinder of the pole can be quickly and fully convected with cold air outside the insulating cylinder 1 from a plurality of heat dissipation channels on 6 sides, and the insulating cylinder has a very good heat dissipation effect. The split insulating cylinder type pole can effectively solve the problem that the large-current pole is difficult to radiate, and a reliable solution is provided for the problem of temperature rise of the large-current inflatable cabinet.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The high-current split insulating cylinder type pole for the inflatable cabinet is characterized by comprising an insulating cylinder (1), a vacuum arc extinguishing chamber (2), an upper wire outlet seat (3), a lower wire outlet seat (4) and a pull rod (5); the upper wire outlet seat (3) is fixedly connected with the inner wall of the end part of the insulating cylinder (1), and a plurality of heat dissipation holes are formed in the circumferential direction of the side wall of the insulating cylinder (1); the middle part of the upper wire outlet seat (3) is connected with the static end of the vacuum arc-extinguishing chamber (2), and the movable end of the vacuum arc-extinguishing chamber (2) is connected with the pull rod (5); the lower wire outlet seat (4) is arranged outside the connecting part of the vacuum arc extinguishing chamber (2) and the pull rod (5), and the outer wall of the lower wire outlet seat (4) is fixedly connected with the inner wall of the insulating cylinder (1).
2. The high-current split insulating cylinder type pole for the inflatable cabinet according to claim 1, wherein the insulating cylinder (1) is of a cuboid structure.
3. A high-current split insulating cylinder type pole for an inflatable cabinet according to claim 2, wherein the insulating cylinder (1) is of a split type structure and is composed of two parts symmetrical along the axis thereof.
4. The high-current split insulating cylinder type pole for the inflatable cabinet according to claim 1, wherein the radiating holes are symmetrically arranged along the axis of the insulating cylinder (1).
5. A high-current split insulating cylinder type pole for an inflatable cabinet according to claim 4, wherein the pull rod (5) is an insulating pull rod.
6. The high-current split insulating cylinder type pole for the inflatable cabinet according to claim 5, wherein the connection mode between the vacuum arc extinguishing chamber (2) and the pull rod (5) is flexible connection.
7. The high-current split insulating cylinder type pole for the inflatable cabinet according to claim 5, wherein the upper wire outlet seat (3) is connected with the insulating cylinder (1) in a welding or bolt connection mode.
8. The high-current split insulating cylinder type pole for the gas-filled cabinet according to claim 5, wherein the connection mode between the lower wire outlet seat (4) and the insulating cylinder (1) is welding or bolting.
9. A method of operating a high current split insulated cylinder pole for an inflatable cabinet as claimed in any one of claims 1 to 8, comprising the steps of:
the pull rod (5) drives the movable end of the vacuum arc-extinguishing chamber (2) to move along the axial direction of the insulating cylinder (1), and hot air in the insulating cylinder (1) is discharged from radiating holes at two ends and the side wall of the insulating cylinder (1) and is subjected to convection with cold air outside the insulating cylinder (1) to achieve the radiating effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311797156.2A CN117766333A (en) | 2023-12-25 | 2023-12-25 | Heavy-current split insulation cylinder type pole for inflatable cabinet and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311797156.2A CN117766333A (en) | 2023-12-25 | 2023-12-25 | Heavy-current split insulation cylinder type pole for inflatable cabinet and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117766333A true CN117766333A (en) | 2024-03-26 |
Family
ID=90315891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311797156.2A Pending CN117766333A (en) | 2023-12-25 | 2023-12-25 | Heavy-current split insulation cylinder type pole for inflatable cabinet and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117766333A (en) |
-
2023
- 2023-12-25 CN CN202311797156.2A patent/CN117766333A/en active Pending
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