CN214624861U - Solid-sealed polar pole applicable to high altitude - Google Patents

Abstract

The utility model provides an applicable utmost point post that seals admittedly in high altitude, including insulating casing, set up vacuum interrupter in insulating casing, connect the last seat of being qualified for the next round of competitions of the quiet end of vacuum interrupter and connect the lower seat of being qualified for the next round of competitions of the end of moving of vacuum interrupter, insulating casing still extends to have and is used for covering the cage of moving of vacuum interrupter, the bottom of cage still is equipped with detachable insulation and inserts, insulation is inserted and is had an opening of stepping down that is used for stepping down the insulating pull rod. The product is through the mode that increases insulating insert, increases and seals utmost point post creepage distance admittedly for ordinary type seals utmost point post admittedly also can be applicable to high-altitude area, makes ordinary type seal utmost point post admittedly and seals utmost point post admittedly with high-altitude type and unify on appearance and mould, strengthens its commonality.

Description

Solid-sealed polar pole applicable to high altitude

Technical Field

The utility model relates to an electrical switch field, concretely relates to seal utmost point post field admittedly, it is specific again, relate to an applicable solid utmost point post that seals in high altitude.

Background

The solid-sealed pole is formed by simultaneously embedding conductive parts (an upper wire outlet seat, a lower wire outlet seat and the like) related to the vacuum arc-extinguishing chamber and the circuit breaker into easily-cured solid insulating materials such as epoxy resin or thermoplastic materials, so that the whole circuit breaker pole is an integral component. Generally, the vacuum switch comprises an insulating shell, a vacuum arc-extinguishing chamber arranged in the insulating shell, an upper wire outlet seat connected with a static end of the vacuum arc-extinguishing chamber, and a lower wire outlet seat connected with a movable end of the vacuum arc-extinguishing chamber, wherein the insulating shell also extends to form an isolation cover for covering the movable end of the vacuum arc-extinguishing chamber, and a subsequent insulating pull rod extends into the isolation cover to be connected with the movable end of the vacuum arc-extinguishing chamber.

The higher the height of the embedded pole is, the higher the required insulating property of the embedded pole is according to different use regions. The coastal low-altitude area is relatively dense in population, relatively developed in industry and relatively more in electricity consumption, most of the ordinary altitude solid-sealed designs are not compatible with the high-altitude area, and if the solid-sealed polar poles are uniformly prepared into the structure suitable for the high-altitude area, a method for increasing the cost of a single piece is required to be compatible with the small people, so that the method is not economical. Or the solid-sealed polar pole structure suitable for different altitudes is designed to be different, corresponding dies need to be arranged, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an applicable utmost point post that seals admittedly in high altitude, the above-mentioned problem of solution that can be fine.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

the utility model provides an applicable utmost point post that seals admittedly in high altitude, includes insulating housing, sets up vacuum interrupter in insulating housing, connects the last seat of being qualified for the next round of competitions of the quiet end of vacuum interrupter and connects the lower seat of being qualified for the next round of competitions of the end of moving of vacuum interrupter, insulating housing still extends the cage that is used for covering the end of moving of vacuum interrupter, the bottom of cage still is equipped with detachable insulation and inserts, insulation is inserted and is had an opening of stepping down that is used for stepping down insulating pull rod.

Furthermore, an insulating elastic diaphragm covering the abdicating opening is fixed on the insulating insert, and a through hole corresponding to the connecting end of the insulating pull rod is formed in the insulating elastic diaphragm.

Further, the end portion of the insulating insert abutting against the isolation cover is defined as an upper end portion, the end portion opposite to the upper end portion is defined as a lower end portion, the lower end portion of the insulating insert is also recessed with a mounting groove communicated with the abdication opening, and the insulating elastic membrane is fixedly attached to the mounting groove.

Furthermore, the insulating elastic diaphragm and the insulating insert are provided with corresponding connecting holes, and the insulating elastic diaphragm is fixed on the insulating insert by the fasteners penetrating through the corresponding connecting holes.

Furthermore, a pressing ring pad is further arranged on the insulating elastic diaphragm.

Furthermore, the insulating elastic membrane is a wave-shaped membrane.

Furthermore, the insulating elastic membrane is made of silica gel.

Furthermore, the end part of the insulating insert abutting against the isolation hood is defined as an upper end part, the upper end part is recessed with a containing groove matched with the bottom appearance of the isolation hood, and the bottom of the isolation hood is embedded into the containing groove of the insulating insert to realize positioning and assembling.

Furthermore, the insulating insert and the isolation cover are provided with corresponding connecting holes, and the insulating insert is fixed on the isolation cover by penetrating fasteners into the corresponding connecting holes.

Furthermore, the insulating insert is made of epoxy resin.

Through the utility model provides a technical scheme has following beneficial effect:

the product is through the mode that increases insulating insert, increases and seals utmost point post creepage distance admittedly for ordinary type seals utmost point post admittedly also can be applicable to high-altitude area, makes ordinary type seal utmost point post admittedly and seals utmost point post admittedly with high-altitude type and unify on appearance and mould, strengthens its commonality.

Drawings

FIG. 1 is a first schematic view of an embodiment of an embedded pole;

FIG. 2 is a schematic view of an embodiment of a second external view of a solid-sealed terminal post;

FIG. 3 is an exploded view of a portion of the embedded pole in the embodiment;

FIG. 4 is a cross-sectional view of the embedded pole in the embodiment;

FIG. 5 is a first external view of an insulation insert according to an embodiment;

FIG. 6 is a second appearance diagram of the insulation insert of the embodiment;

FIG. 7 is a cross-sectional view of an embodiment of an insulation insert;

fig. 8 is an external view of the insulating elastic diaphragm in the embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 8, the embodiment provides an embedded pole applicable to a high altitude, including an insulating housing 11, a vacuum interrupter 12 disposed in the insulating housing 11, an upper wire outlet base 13 connected to a stationary end of the vacuum interrupter 12, and a lower wire outlet base 14 connected to a moving end of the vacuum interrupter 12, the insulating housing 11 further extends to have an isolation cover 111 for covering the moving end of the vacuum interrupter 12, and in subsequent use, the insulating rod 1 extends into the isolation cover 111 to be connected to the moving end of the vacuum interrupter 12. The isolation cover plays a role in increasing creepage distance, and the insulation grade of the solid-sealed polar pole is well improved. Meanwhile, the isolation cover also plays a dustproof role.

The bottom of the isolation cover 111 is also provided with a detachable insulating insert 20, and the insulating insert 20 is provided with a yielding opening 21 for yielding the insulating pull rod 1 so that the insulating pull rod 1 can pass through the yielding opening to realize installation. Specifically, the insulating insert 20 is preferably made of epoxy resin, and has good insulating properties and low cost. Of course, in other embodiments, the insulating insert 20 may be made of insulating material such as silicon gel, rubber, or ceramic.

The arrangement of the insulating insert 20 further increases the creepage distance of the solid-sealed polar pole, so that the common solid-sealed polar pole can be also suitable for high altitude areas, namely when the common solid-sealed polar pole is used for low altitude, the insulating insert 20 can be detached for use; if the embedded pole needs to be applied to high altitude, the insulating insert 20 is installed to improve the insulating property of the embedded pole, and the embedded pole is suitable for high altitude areas. Meanwhile, the common solid-sealed polar pole and the high-altitude solid-sealed polar pole are unified in appearance and mold, the universality is enhanced, and the preparation cost is reduced.

Further, an insulating elastic membrane 30 covering the abdicating opening 21 is fixed on the insulating insert 20, a through hole 31 corresponding to the connecting end of the insulating pull rod 1 is formed in the insulating elastic membrane 30, and an external connecting component penetrates through the through hole 31 in the insulating elastic membrane 30 to connect the connecting end of the insulating pull rod 1. This insulating elastic diaphragm 30's setting, the opening of stepping down 21 that covers that can be fine effectively completely cuts off the interior outer space of cage 111, prevents that cage 111 inner space from weing and reducing insulating properties, still further plays dustproof effect. In the process of opening and closing transmission, the insulating elastic membrane 30 can act along with the opening and closing transmission, and the operation of the vacuum arc extinguish chamber is not influenced.

Specifically, the insulating elastic membrane 30 is a wavy membrane made of silica gel, and the silica gel has good insulation, good flexibility and low cost, and is a preferred material choice; and the wavy diaphragm can well provide a deformation stroke. Of course, in other embodiments, the material and deformation of the insulating elastic membrane 30 are not limited thereto, and alternatively, the structure of the insulating elastic membrane 30 may not be adopted.

Specifically, the end portion of the insulating insert 20 abutting against the isolation cover 111 is defined as an upper end portion, the end portion opposite to the upper end portion is defined as a lower end portion, the lower end portion of the insulating insert 20 is further recessed with a mounting groove 23 communicating with the abdicating opening 21, and the insulating elastic membrane 30 is fixedly attached to the mounting groove 23, so that the insulating elastic membrane 30 is convenient to mount.

More specifically, the insulating elastic diaphragm 30 and the insulating insert 20 have corresponding connection holes (defined as first connection holes), such as the first connection hole 32 of the insulating elastic diaphragm 30 and the first connection hole 231 of the insulating insert 20, and the fastener (defined as the first fastener 50) is inserted into the corresponding first connection hole to fix the insulating elastic diaphragm 30 on the insulating insert 20. The first fastening member 50 may be a bolt, and the first connection hole 32, 231 may be a screw hole, and the fixation is achieved by the screw engagement of the bolt and the screw hole.

More specifically, in order to prevent the insulating elastic diaphragm 30 from deforming during fixing, in this embodiment, a pressing ring pad 40 is further disposed on the insulating elastic diaphragm 30, and the outer edge of the insulating elastic diaphragm 30 is pressed by the pressing ring pad 40, so as to effectively prevent deformation.

Of course, in other embodiments, the connection manner of the insulating elastic membrane 30 and the insulating insert 20 is not limited to this, and may also be fixed by gluing with an adhesive layer.

The upper end of the insulating insert 20 is recessed with a containing groove 22 matched with the bottom shape of the isolation cover 111, and the bottom of the isolation cover 111 is embedded into the containing groove 22 of the insulating insert 20 to realize positioning and assembling, so that the assembling position is more accurate.

The insulating insert 20 and the isolation cover 111 are provided with corresponding connecting holes (defined as second connecting holes), such as the second connecting hole 221 on the insulating insert 20, the second connecting hole on the isolation cover 111 is not shown, and the insulating insert 20 is fixed on the isolation cover 111 by a fastener (defined as a second fastener (not shown)) passing through the corresponding second connecting hole. The second fastening piece can be a bolt, the second connecting hole can be a screw hole, and the second fastening piece and the screw hole are in threaded fit to realize fixation; the assembly and disassembly are convenient, and of course, in other embodiments, the fixed connection structure of the insulating insert 20 and the isolation cover 111 is not limited to this.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides an applicable utmost point post that seals admittedly in high altitude, includes insulating housing, sets up vacuum interrupter in insulating housing, connects the last seat of being qualified for the next round of competitions of the quiet end of vacuum interrupter and the lower seat of being qualified for the next round of competitions of the end of moving of connecting vacuum interrupter, insulating housing still extends to have and is used for covering the cage of moving of vacuum interrupter, its characterized in that: the bottom of cage still is equipped with the insulating insert of detachable, insulating insert has an opening of stepping down that is used for stepping down insulating pull rod.

2. The embedded pole applicable to high altitude according to claim 1, wherein: the insulation insert is further fixed with an insulation elastic membrane covering the abdicating opening, and the insulation elastic membrane is provided with a through hole corresponding to the connecting end of the insulation pull rod.

3. The embedded pole applicable to high altitude according to claim 2, wherein: the end portion of the insulating insert abutting against the isolation cover is defined to be an upper end portion, the end portion opposite to the upper end portion is defined to be a lower end portion, the lower end portion of the insulating insert is further sunken to be provided with a mounting groove communicated with the abdication opening, and the insulating elastic membrane is fixedly attached to the mounting groove.

4. The embedded pole applicable to high altitude according to claim 3, wherein: the insulating elastic diaphragm and the insulating insert are provided with corresponding connecting holes, and the insulating elastic diaphragm is fixed on the insulating insert by the fasteners penetrating through the corresponding connecting holes.

5. The embedded pole applicable to high altitude according to claim 4, wherein: and a pressing ring pad is also arranged on the insulating elastic diaphragm.

6. The embedded pole applicable to high altitude according to claim 2, wherein: the insulating elastic membrane is a wave-shaped membrane.

7. The embedded pole applicable to high altitude according to claim 2, wherein: the insulating elastic membrane is made of silica gel.

8. The embedded pole applicable to high altitude according to claim 1, wherein: the end part of the insulating insert abutting against the isolation hood is defined as the upper end part, the upper end part of the insulating insert is recessed with a containing groove matched with the bottom appearance of the isolation hood, and the bottom of the isolation hood is embedded into the containing groove of the insulating insert to realize positioning and assembling.

9. The embedded pole applicable to high altitude according to claim 8, wherein: the insulating insert and the isolation cover are provided with corresponding connecting holes, and the insulating insert is fixed on the isolation cover through the fasteners penetrating through the corresponding connecting holes.

10. The embedded pole applicable to high altitude according to claim 1, wherein: the insulating insert is made of epoxy resin.

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