CN112053891A - Solid-sealed pole type wire outlet sleeve - Google Patents
Solid-sealed pole type wire outlet sleeve Download PDFInfo
- Publication number
- CN112053891A CN112053891A CN202011027167.9A CN202011027167A CN112053891A CN 112053891 A CN112053891 A CN 112053891A CN 202011027167 A CN202011027167 A CN 202011027167A CN 112053891 A CN112053891 A CN 112053891A
- Authority
- CN
- China
- Prior art keywords
- vacuum arc
- insulating sleeve
- conductor bar
- far away
- extinguishing chamber
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a solid-sealed pole type outgoing line sleeve, which comprises a conductor bar, a vacuum arc extinguish chamber connected with one end of the conductor bar and an insulating sleeve poured outside the conductor bar and the vacuum arc extinguish chamber; the conductor bar is collinear with the central axis of the vacuum arc-extinguishing chamber; one end of the conductor bar, which is far away from the vacuum arc-extinguishing chamber, and one end of the vacuum arc-extinguishing chamber, which is far away from the conductor bar, extend out of the insulating sleeve, and one end of the conductor bar, which is far away from the vacuum arc-extinguishing chamber, is provided with a wire outlet terminal; the outer side of the insulating sleeve far away from one end of the vacuum arc extinguish chamber is sleeved with an umbrella skirt, and the surface of the insulating sleeve positioned outside the vacuum arc extinguish chamber is provided with a plurality of annular grains distributed at intervals. The invention has few detachable parts and high reliability, simplifies the product structure and is beneficial to realizing the miniaturization of the switch cabinet; in addition, the invention is beneficial to reducing the manufacturing cost and improving the qualification rate of products.
Description
Technical Field
The invention relates to the technical field of vacuum switches, in particular to a solid-sealed pole type outgoing line sleeve.
Background
In the field of medium voltage transmission, in particular in the order of 12kV, vacuum circuit breakers are used very widely. The wide application of the vacuum circuit breaker is not separated from the continuous progress of the vacuum circuit breaker technology, and the most important is the technical progress of the embedded pole. The pole insulation of the vacuum circuit breaker is subjected to three stages of air insulation, composite insulation and solid sealing insulation. The solid-sealed pole is used for extinguishing electric arc through the vacuum arc-extinguishing chamber so as to achieve the purposes of breaking overload current and protecting electric equipment. The solid-sealed polar pole used at present is complex in structure, high in manufacturing difficulty and high in manufacturing cost, and therefore a novel solid-sealed polar pole needs to be designed aiming at the problems.
Disclosure of Invention
The invention provides a solid-sealed pole type wire outlet sleeve for solving the defects of the prior art, which simplifies the product structure, has high reliability, and also has the advantages of low manufacturing cost and high product qualification rate.
In order to achieve the purpose, the invention provides the following technical scheme:
a solid-sealed pole type outgoing line sleeve comprises a conductor bar, a vacuum arc extinguish chamber connected with one end of the conductor bar and an insulating sleeve poured outside the conductor bar and the vacuum arc extinguish chamber; the conductor bar is collinear with the central axis of the vacuum arc-extinguishing chamber; one end of the conductor bar, which is far away from the vacuum arc-extinguishing chamber, and one end of the vacuum arc-extinguishing chamber, which is far away from the conductor bar, extend out of the insulating sleeve, and one end of the conductor bar, which is far away from the vacuum arc-extinguishing chamber, is provided with a wire outlet terminal; the outer side of the insulating sleeve far away from one end of the vacuum arc extinguish chamber is sleeved with an umbrella skirt, and the surface of the insulating sleeve positioned outside the vacuum arc extinguish chamber is provided with a plurality of annular grains distributed at intervals.
Furthermore, a flange part is arranged on the outer side of the middle part of the insulating sleeve, a conical mounting part is arranged on one side of the flange part, which is far away from the vacuum arc-extinguishing chamber, the diameter of the end, which is close to the flange part, of the conical mounting part is gradually reduced to the end, which is far away from the flange part, of the conical mounting part, and a clamping groove surrounding the insulating sleeve for one circle is arranged at the joint of the flange part and; one end of the umbrella skirt is provided with a tail part matched with the shape of the conical mounting part, and the tail end of the tail part is provided with a clamping part extending inwards; the tail part is sleeved on the conical mounting part, and the clamping part is sleeved in the clamping groove.
Furthermore, the umbrella skirt is made of silicon rubber.
Furthermore, the outlet terminal is flat, and a round hole used for being connected with a power grid cable is formed in the outlet terminal.
Furthermore, a clamping edge extending towards the inner side of the insulating sleeve is arranged at one end, far away from the conductor bar, of the insulating sleeve, and the clamping edge is coated on the outer side of a movable end cover plate of the vacuum arc-extinguishing chamber; the static end guide rod on the vacuum arc extinguish chamber is connected with the conductor bar, and the moving end guide rod on the vacuum arc extinguish chamber extends out of the through hole formed on the inner side of the clamping edge.
Furthermore, each annular grain all encircles insulation support a week, and all annular grains are along insulation support's axial direction equidistance interval distribution.
Further, the inside cavity that forms the same with vacuum interrupter size of one end that insulating sleeve kept away from the conductor bar, vacuum interrupter is located the cavity in, the insulating sleeve's of cavity outside wall thickness is 8 ~ 10 mm.
Furthermore, the insulating sleeve is made of epoxy resin.
Compared with the prior art, the invention combines the outgoing line sleeve with the vacuum arc extinguish chamber, has few detachable parts and high reliability, simplifies the product structure and is beneficial to realizing the miniaturization of the switch cabinet. In addition, the invention is beneficial to reducing the manufacturing cost and improving the qualification rate of products.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described 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 front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a bottom view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is a cross-sectional view of an insulating sleeve according to the present invention;
FIG. 6 is an enlarged partial view taken at I in FIG. 5;
figure 7 is a half sectional view of the shed of the present invention.
The reference numerals are explained below:
in the figure: 1. a conductor bar; 2. an umbrella skirt; 201. a tail portion; 202. a fastening part; 3. an insulating sleeve; 301. a cavity; 302. annular lines; 303. a flange portion; 304. a tapered mounting portion; 305. edge clamping; 306. a card slot; 4. a vacuum arc-extinguishing chamber; 401. a movable end guide rod; 5. and an outlet terminal.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1-7, the invention provides a fixed pole type outgoing line bushing, which comprises a conductor bar 1, a vacuum arc-extinguishing chamber 4 connected with one end of the conductor bar 1, and an insulating bushing 3 poured outside the conductor bar 1 and the vacuum arc-extinguishing chamber 4; the conductor bar 1 is a solid straight bar, and the conductor bar 1 is collinear with the central axis of the vacuum arc-extinguishing chamber 4; one end of the conductor bar 1, which is far away from the vacuum arc-extinguishing chamber 4, and one end of the vacuum arc-extinguishing chamber 4, which is far away from the conductor bar 1, extend out of the insulating sleeve 3, and one end of the conductor bar 1, which is far away from the vacuum arc-extinguishing chamber 4, is provided with an outlet terminal 5 for connecting a power grid cable; the outer side of the insulating sleeve 3 far away from one end of the vacuum arc-extinguishing chamber 4 is sleeved with the umbrella skirt 2, and the surface of the insulating sleeve 3 located outside the vacuum arc-extinguishing chamber 4 is provided with a plurality of annular grains 302 distributed at intervals.
In the invention, a flange part 303 is arranged on the outer side of the middle part of the insulating sleeve 3, a tapered mounting part 304 is arranged on one side of the flange part 303, which is far away from the vacuum arc-extinguishing chamber 4, the diameter of the tapered mounting part 304 from one end of the tapered mounting part, which is close to the flange part 303, to the end of the tapered mounting part 304, which is far away from the flange part 303, is gradually reduced, and a clamping groove 306 surrounding the insulating sleeve 3 for one circle is arranged at; a tail part 201 matched with the shape of the conical mounting part 304 is arranged at one end of the umbrella skirt 2, and a buckling part 202 extending inwards is arranged at the tail end of the tail part 201; the tail portion 201 is sleeved on the tapered mounting portion 304, and the fastening portion 202 is sleeved in the clamping groove 306. Wherein, the umbrella skirt 2 is made of silicon rubber. The conductor bar 1 is a solid straight bar and is collinear with the central axis of the vacuum arc-extinguishing chamber 4, a casting mold required in processing and manufacturing is simpler in structure, the mold opening cost can be reduced, and the yield of products in processing is improved. In use, the flange portion 303 is used to fix the present invention to a case of a circuit breaker, and the fastening portion 202 at the lower end of the skirt 2 is fastened to the fastening groove 306, whereby the coupling strength between the skirt 2 and the insulating sleeve 3 can be enhanced.
In order to facilitate installation, the outlet terminal 5 is in a flat plate shape, and two round holes used for being connected with a power grid cable are formed in the outlet terminal 5.
In the invention, one end of an insulating sleeve 3, which is far away from a conductor bar 1, is provided with a clamping edge 305 extending towards the inner side of the insulating sleeve 3, and the clamping edge 305 is coated on the outer side of a movable end cover plate of a vacuum arc-extinguishing chamber 4; the stationary end guide rod on the vacuum interrupter 4 is connected to the conductor bar 1, and the moving end guide rod 401 on the vacuum interrupter 4 extends out of the through hole formed inside the clamping edge 305. After the insulating sleeve 3 is poured, the clamping edge 305 at the lower end stably fixes the vacuum arc-extinguishing chamber 4 in the cavity 301, so that the product is ensured to have good stability. Each annular line 302 all encircle insulating sleeve 3 a week, all annular lines 302 along insulating sleeve 3's axis direction equidistance interval distribution, can increase the creep distance through the annular line 302 that sets up.
In the invention, a cavity 301 with the same size as the vacuum arc-extinguishing chamber 4 is formed in one end of the insulating sleeve 3 away from the conductor bar 1, and the vacuum arc-extinguishing chamber 4 is positioned in the cavity 301. In order to ensure the structural strength of the product and save raw materials and reduce the cost, the wall thickness of the insulating sleeve 3 outside the cavity 301 (i.e. the dimension a shown in fig. 5) is 8-10 mm. As a preferred embodiment of the invention, the wall thickness of the insulating sleeve 3 outside the cavity 301 is 9 mm. The insulating sleeve 3 is made of a solid insulating material which is easy to cure, such as epoxy resin.
The invention combines the outgoing line sleeve with the vacuum arc extinguish chamber 4, has few detachable parts and high reliability, simplifies the product structure and is beneficial to realizing the miniaturization of the switch cabinet. In addition, the invention is beneficial to reducing the manufacturing cost and improving the qualification rate of products.
The above description is only for the 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 easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A solid-sealed pole type outgoing line sleeve is characterized by comprising a conductor bar, a vacuum arc-extinguishing chamber connected with one end of the conductor bar and an insulating sleeve poured outside the conductor bar and the vacuum arc-extinguishing chamber; the conductor bar is collinear with the central axis of the vacuum arc-extinguishing chamber; one end of the conductor bar, which is far away from the vacuum arc-extinguishing chamber, and one end of the vacuum arc-extinguishing chamber, which is far away from the conductor bar, extend out of the insulating sleeve, and one end of the conductor bar, which is far away from the vacuum arc-extinguishing chamber, is provided with a wire outlet terminal; the outer side of the insulating sleeve far away from one end of the vacuum arc extinguish chamber is sleeved with an umbrella skirt, and the surface of the insulating sleeve positioned outside the vacuum arc extinguish chamber is provided with a plurality of annular grains distributed at intervals.
2. The anchor pole type wire outlet sleeve of claim 1, wherein: the outer side of the middle of the insulating sleeve is provided with a flange part, one side of the flange part, which is far away from the vacuum arc-extinguishing chamber, is provided with a conical mounting part, the diameter of the end, which is close to the flange part, of the conical mounting part to the end, which is far away from the flange part, of the conical mounting part is gradually reduced, and a clamping groove surrounding the insulating sleeve for one circle is arranged at the joint of the flange; one end of the umbrella skirt is provided with a tail part matched with the shape of the conical mounting part, and the tail end of the tail part is provided with a clamping part extending inwards; the tail part is sleeved on the conical mounting part, and the clamping part is sleeved in the clamping groove.
3. The anchor post type wire outlet sleeve according to claim 2, wherein: the umbrella skirt is made of silicon rubber.
4. The anchor pole type wire outlet sleeve of claim 1, wherein: the outlet terminal is flat and is provided with a round hole for connecting with a power grid cable.
5. The anchor pole type wire outlet sleeve of claim 1, wherein: one end of the insulating sleeve, which is far away from the conductor bar, is provided with a clamping edge extending towards the inner side of the insulating sleeve, and the clamping edge is coated on the outer side of a movable end cover plate of the vacuum arc-extinguishing chamber; the static end guide rod on the vacuum arc extinguish chamber is connected with the conductor bar, and the moving end guide rod on the vacuum arc extinguish chamber extends out of the through hole formed on the inner side of the clamping edge.
6. The anchor pole type wire outlet sleeve of claim 1, wherein: each annular line all encircle insulating sleeve a week, all annular lines along insulating sleeve's axis direction equidistance interval distribution.
7. The anchor post type wire outlet sleeve according to any one of claims 1 to 6, wherein: the insulating sleeve is kept away from the inside cavity that forms the same with vacuum interrupter size of one end of conductor stick, vacuum interrupter is located the cavity in, the insulating sleeve's in the cavity outside wall thickness is 8 ~ 10 mm.
8. The anchor post type wire outlet sleeve according to claim 7, wherein: the insulating sleeve is made of epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011027167.9A CN112053891A (en) | 2020-09-26 | 2020-09-26 | Solid-sealed pole type wire outlet sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011027167.9A CN112053891A (en) | 2020-09-26 | 2020-09-26 | Solid-sealed pole type wire outlet sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112053891A true CN112053891A (en) | 2020-12-08 |
Family
ID=73604855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011027167.9A Pending CN112053891A (en) | 2020-09-26 | 2020-09-26 | Solid-sealed pole type wire outlet sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112053891A (en) |
-
2020
- 2020-09-26 CN CN202011027167.9A patent/CN112053891A/en active Pending
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