CN212257269U

CN212257269U - Solid-sealed pole type wire outlet sleeve

Info

Publication number: CN212257269U
Application number: CN202022138866.2U
Authority: CN
Inventors: 郭国领; 李继龙; 王志超; 刘华枝
Original assignee: Henan Lingzhi Electric Co ltd
Current assignee: Henan Lingzhi Electric Co ltd
Priority date: 2020-09-26
Filing date: 2020-09-26
Publication date: 2020-12-29
Anticipated expiration: 2030-09-26

Abstract

The utility model 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 utility model has few detachable parts, high reliability, simplified product structure and is beneficial to realizing the miniaturization of the switch cabinet; furthermore, the utility model discloses still be favorable to reducing manufacturing cost, improve the qualification rate of product.

Description

Solid-sealed pole type wire outlet sleeve

Technical Field

The utility model relates to a vacuum switch technical field, concretely relates to solid seal pole type wire outlet 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.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve prior art not enough, provide a solid utmost point column type wire outgoing sleeve, it has simplified the product structure, and the reliability is high, still has low in manufacturing cost, the advantage that the product percent of pass is high.

In order to achieve the above purpose, the utility model provides a 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 utility model discloses make the wire sleeve pipe and combine together with vacuum interrupter, it is few to dismantle the part, and the reliability is high, has simplified the product structure moreover, is favorable to realizing the miniaturization of cubical switchboard. Furthermore, the utility model discloses still be favorable to reducing manufacturing cost, improve the qualification rate of product.

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 these 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 sectional view of the insulating sleeve of the present invention;

FIG. 6 is an enlarged partial view taken at I in FIG. 5;

fig. 7 is a half-sectional view of the umbrella skirt 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 clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-7, the utility model provides a solid-sealed pole outgoing line sleeve, which comprises a conductor bar 1, a vacuum arc-extinguishing chamber 4 connected with one end of the conductor bar 1, and an insulating sleeve 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 utility model, the middle outer side of the insulating sleeve 3 is provided with a flange part 303, one side of the flange part 303 departing from the vacuum arc extinguish chamber 4 is provided with a conical installation part 304, the diameter of the end of the conical installation part 304 close to the flange part 303 to the end of the conical installation part 304 away from the flange part 303 is gradually reduced, and the joint of the flange part 303 and the conical installation part 304 is provided with a clamping groove 306 surrounding the insulating sleeve 3 for one circle; 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 utility model discloses well conductor stick 1 is solid straight-bar and its axis collineation with vacuum interrupter 4, and required casting mold structure is more simple when manufacturing, not only can reduce the die sinking cost, is favorable to improving the qualification rate of adding man-hour product moreover. When using, flange portion 303 be used for making the utility model discloses fixed with the casing of circuit breaker, and establish the joint strength that can strengthen full skirt 2 and insulating sleeve 3 in draw-in groove 306 through buckle portion 202 card that makes full skirt 2 lower extreme.

In order to facilitate the installation, in the utility model discloses in leading-out terminal 5 is flat, is provided with two round holes that are used for being connected with the electric wire netting cable on leading-out terminal 5.

In the utility model, one end of the insulating sleeve 3 far away from the 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 outside a movable end cover plate of the 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.

The utility model discloses in, insulating sleeve 3 keeps away from the inside cavity 301 that forms the same with 4 sizes of vacuum interrupter of one end of conductor bar 1, vacuum interrupter 4 is located cavity 301 in. 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 preferable embodiment of the present 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 utility model discloses make the wire sleeve pipe and combine together with vacuum interrupter 4, it is few to dismantle the part, and the reliability is high, has simplified the product structure moreover, is favorable to realizing the miniaturization of cubical switchboard. Furthermore, the utility model discloses still be favorable to reducing manufacturing cost, improve the qualification rate of product.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

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.