CN207800478U - A kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness - Google Patents

Abstract

The utility model discloses a kind of outdoor AC high-voltage vacuum circuit breakers of high leakproofness, including babinet, several insulator binding posts for being covered on the lid of babinet and being set at the top of lid, the end face of the babinet is installed with outwardly extending along side, the upper surface along side is equipped with annular groove, it is placed with the sealing ring being adapted to therewith in the annular groove and the sealing ring protrudes from annular groove, the lid, which is equipped with, to be embedded into sealing ring and the enlarged portion that makes sealing ring expand outwardly, the lateral wall of the sealing ring, which is installed with, to be extended to along the extended segment of side lateral wall, cover rim of the driving extended segment abutting along side lateral wall is installed on the lid, it is bolted between the lid and babinet.The utility model has the following advantages and effect：The utility model can reach better seal effect, to extend the service life of breaker.

Description

A kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness

Technical field

The utility model is related to a kind of power equipment, more particularly to the outdoor AC high-voltage vacuum circuit breaker of a kind of high leakproofness Device.

Background technology

High-voltage circuitbreaker（Or high-voltage switch gear）It can not only cut off or the no-load current in closed high voltage circuit and negative Charged current, and overload electric current and short circuit current are cut off by the effect of relay protection when system jam, It has quite perfect arc extinguishing structure and enough cutout abilities.And vacuum circuit breaker therein is because of its arc-extinguishing medium and arc extinguishing The dielectric of contact gap is all high vacuum and gains the name afterwards；Its with it is small, light-weight, be suitable for frequent operation, arc extinguishing The advantages of being overhauled without 0, using more universal in power distribution network.

Notification number is that the Chinese patent of CN107452543A discloses a kind of hermetically sealed high pressure vacuum of outdoor environmental protection compact Breaker, includes the shell being sealed to form by babinet, lid, and shell is equipped with inflating port；Equipped with three-phase pole, open circuit in babinet Device operating mechanism, and it is equipped with control mechanism；The arranged on left and right sides of babinet is equipped with three-phase positioned opposite into and out of thread casing；Babinet Arranged on left and right sides is correspondingly provided with the extended cavity extended to its outside, sets that there are three compartments in each extended cavity；Three-phase is into and out of line set Correspondence is set with current transformer A, B in compartment on pipe；Three-phase pole all has insulation booth, is equipped in each insulation booth Upside vacuum bubbles with static contact and the lower-side insulation pull rod being connected with moving contact in vacuum bubbles；A, B points of current transformer Other connection control mechanism, and control instruction is sent to control the divide-shut brake shape of breaker from control mechanism to circuit breaker operation mechanism State.

Step-like bead is set at port on the upside of the babinet in above-mentioned patent, the edge arranged to downside is arranged in four sides of lid Side, by common sealing ring being arranged in step-like bead and between side realizing sealing to breaker, due to sealing ring with Contact area between babinet and lid is limited, and babinet, lid and sealing ring material be affected by temperature will produce it is certain Telescopic deformation；Lead to that by common sealing ring good waterproof effect can not be reached so that hydrone is easily accessible case Internal portion causes the short circuit of breaker and influences the service life of breaker.

Utility model content

The purpose of this utility model is to provide a kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness, high leakproofness Outdoor AC high-voltage vacuum circuit breaker has longer service life.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of family of high leakproofness Outer AC high voltage vacuum breaker, including babinet, several insulators for being covered on the lid of babinet and being set at the top of lid Binding post, the end face of the babinet are installed with outwardly extending along side, and the upper surface along side is equipped with annular groove, in the annular groove It is placed with the sealing ring being adapted to therewith and the sealing ring protrudes from annular groove, the lid is equipped with and is embedded into sealing ring and makes sealing The enlarged portion expanded outwardly is enclosed, the lateral wall of the sealing ring, which is installed with, to be extended to along the extended segment of side lateral wall, described It is installed with the abutting of driving extended segment on lid along the cover rim of side lateral wall, is bolted between the lid and babinet.

By using above-mentioned technical proposal, when cover cap is set to babinet, enlarged portion is embedded into sealing ring, to sealing flexible Circle applies the active force expanded outwardly, and the sealing ring after expanding is limited by annular groove, to make to be reached between lid and babinet To better seal effect；And drive extended segment to contact at the side wall along side by cover rim, increase sealing ring and lid and case Contact area between body, to make that better seal effect can be reached between lid and babinet, promote breaker uses the longevity Life.

It is further arranged to：Overbank is arranged to form an inclined surface between the cover rim madial wall and lid, described to prolong The lateral wall for stretching section is equipped with the rake of cooperation inclined surface.

By using above-mentioned technical proposal, lid towards babinet direction when moving, by between inclined surface and rake Cooperation, the distance between inclined surface and rake can be gradually decreased, to extended segment realize preferably squeeze, it is more preferable to reach Sealing effect.

It is further arranged to：The side of the sealing ring back to extended segment is equipped with the extension extended towards box house, Deformation cavity is equipped in extension.

By using above-mentioned technical proposal, the setting of extension further increases connecing between sealing ring and lid and babinet Contacting surface is accumulated, and passes through the setting of deformation cavity so that elastic shape can preferably occur under the extruding of lid and babinet for extension Become, to reach better seal effect.

It is further arranged to：It is covered with rubber layer in the enlarged portion.

By using above-mentioned technical proposal, by rubber layer Contact Seal ring, it can be further reduced and generate between the two Gap, to reach better seal effect.

It is further arranged to：The positioning section extended to along side lower surface is installed on the extended segment, on the positioning section Equipped with locating piece.

By using above-mentioned technical proposal, realize sealing ring on babinet by the cooperation between positioning section and locating piece Fixed, the lid for facilitating lid sets operation.

It is further arranged to：It is fixed at the top of the lid that multiple lifting lugs are distributed with.

By using above-mentioned technical proposal, the setting of lifting lug facilitates the lifting for lid, to realize lid and case Ease of assembly between body.

In conclusion the utility model has the advantages that：The present invention can reach better seal effect, to prolong The service life of long breaker.

Description of the drawings

Fig. 1 is the structural schematic diagram of embodiment；

Fig. 2 is the portions A enlarged drawing in Fig. 1.

In figure：1, babinet；2, lid；3, insulator binding post；4, along side；5, annular groove；6, sealing ring；7, enlarged portion；8、 Extended segment；9, cover rim；10, inclined surface；11, rake；12, extension；13, deformation cavity；14, rubber layer；15, positioning section； 16, locating piece；17, lifting lug；18, braced frame；19, slot.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

With reference to figure 1, a kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness, including babinet 1,1 bottom of babinet are fixed There are braced frame 18,1 top of babinet that should be equipped with lid 2, and be bolted to connection between lid 2 and babinet 1；2 top of lid Fixed to be arranged with three insulator binding posts 3,2 top of lid is installed with lifting lug between two neighboring insulator binding post 3 17。

With reference to figure 2, the end face of babinet 1 be wholely set it is outwardly extending along side 4, along side 4 be surrounded on babinet 1 port and It is mutually perpendicular to the side wall of babinet 1；The lateral wall of lid 2 is wholely set the cover rim 9 extended towards 1 direction of babinet, cover rim 9 with The lateral wall of babinet 1 is parallel and interval setting, cover rim 9 are surrounded on the edge of babinet 1.Along the upper surface on side 4 offer around Annular groove 5 along side 4, the sealing ring 6 being adapted to therewith is placed in annular groove 5 and sealing ring 6 protrudes from the setting of annular groove 5；2 direction of lid Along side 4 one side and the position right over sealing ring 6 be installed with enlarged portion 7, the cross sectional shape of enlarged portion 7 be V-shaped and Rubber layer 14 is adhesively fixed in enlarged portion 7, the position that 6 upper surface of sealing ring corresponds to enlarged portion 7 is offered less than enlarged portion 7 Slot 19, the shape of slot 19 is V-shaped.

Sealing ring 6 towards be wholely set on one side towards the extension 12 that extends back to 9 direction of cover rim back to cover rim 9, Deformation cavity 13 is provided in extension 12；Sealing ring 6 is extended to towards being wholely set on one side for cover rim 9 along 4 lateral wall of side Extended segment 8, tilting procedure is arranged to form the inclined surface 10 between the madial wall and lid 2 of cover rim 9, is set on extended segment 8 There is the rake 11 of cooperation inclined surface 10.It is wholely set the positioning section 15 extended to along 4 lower surface of side on extended segment 8, positions Section 15 is equipped with locating piece 16, and locating piece 16 is bolt, and bolt is threadedly coupled across positioning section 15 with along side 4.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (6)

1. a kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness, including babinet (1), the lid (2) for being covered on babinet (1) And it is set to several insulator binding posts (3) at the top of lid (2), it is characterised in that：The end face of the babinet (1) is installed with Outwardly extending along side (4), the upper surface along side (4) is equipped with annular groove (5), and interior be placed with of the annular groove (5) is adapted to therewith Sealing ring (6) and the sealing ring (6) protrude from annular groove (5), the lid (2) is equipped with and is embedded into sealing ring (6) and makes close The enlarged portion (7) that seal (6) expands outwardly, the lateral wall of the sealing ring (6), which is installed with, to be extended to along side (4) lateral wall Extended segment (8), driving extended segment (8) is installed on the lid (2) and pushes against cover rim (9) along side (4) lateral wall, the lid It is bolted between body (2) and babinet (1).

2. a kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness according to claim 1, it is characterised in that：It is described Overbank is arranged to form an inclined surface (10) between cover rim (9) madial wall and lid (2), the lateral wall of the extended segment (8) Rake (11) equipped with cooperation inclined surface (10).

3. a kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness according to claim 1, it is characterised in that：It is described The side of sealing ring (6) back to extended segment (8) is equipped with towards babinet (1) and extends internally extension (12), and extension (12) is interior Equipped with deformation cavity (13).

4. a kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness according to claim 1, it is characterised in that：It is described Rubber layer (14) is covered in enlarged portion (7).

5. a kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness according to claim 1, it is characterised in that：It is described The positioning section (15) extended to along side (4) lower surface is installed on extended segment (8), the positioning section (15) is equipped with locating piece (16)。

6. a kind of outdoor AC high-voltage vacuum circuit breaker of high leakproofness according to claim 1, it is characterised in that：It is described It is fixed at the top of lid (2) that multiple lifting lugs (17) are distributed with.