CN209658124U - A kind of fuse unit - Google Patents
A kind of fuse unit Download PDFInfo
- Publication number
- CN209658124U CN209658124U CN201920490549.1U CN201920490549U CN209658124U CN 209658124 U CN209658124 U CN 209658124U CN 201920490549 U CN201920490549 U CN 201920490549U CN 209658124 U CN209658124 U CN 209658124U
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- China
- Prior art keywords
- plum blossom
- striker
- shell
- blossom seat
- fuse unit
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Abstract
The utility model provides a kind of fuse unit, including shell, mouth component, rubber sleeve, the cartridge fuse being set in shell, lower contact base, upper plum blossom seat and lower plum blossom seat, lower plum blossom seat is fixed with lower contact base by screw, fixation is stronger, and it is provided with arc extinguishing grid pieces and can carry out that arc extinguishing is isolated well, be conducive to improve conductive effect, striker, which is connect by buffer spring with upper plum blossom seat, is conducive to play better buffer function, reduce the damage of striker, mouth component is provided with seesaw, striker impact seesaw, seesaw hits end cap again, kinetic energy efficiency is high.
Description
Technical field
The utility model relates to electric system equipment for power transmission and distribution, and in particular to a kind of fuse unit.
Background technique
Switchgear in the market uses high pressure SF6 gas as dielectric, gas in closed metal cabinet mostly
Its dielectric strength is larger by the quality of ambient air and the pressure influence of SF6 gas, if the humidity of ambient air and it is filthy compared with
In the big or lesser situation of SF6 gas pressure, it is possible to can electrically puncture, cause power grid accident and cause great economic damage
It loses；Meanwhile sulfur hexafluoride can be electrolyzed to produce the toxic gases such as less fluorinated sulphur when switch cut-offs arc extinguishing, if being discharged into atmospheric environment
In environment can be caused greatly to pollute, and solid insulation switch cabinet is environmentally protective, is suitble to distribution automation, and safety
It is high, environment resistant pollution is strong, is able to achieve substantially non-maintaining, therefore be widely used by market.Fuse unit is in solid insulation switch cabinet
One highly important component, performance will have a direct impact on the safety of high-tension switch cabinet operation.Therefore, if one kind can be provided
Miniaturization, sealed insulation performance is good, reliable operation, is readily disassembled the fuse unit of replacement, is required for switchgear.
And the lower plum blossom seat of existing fuse unit contacts not secured enough with lower contact base, also without arc-control device, leads
Electric effect is poor, and the fixation of striker does not have buffering mostly, it is easy to the phenomenon of striker damage occurs, and mostly be to use to hit
Needle, which is directly hit, opens mouth components, and kinetic energy efficiency is low.
Utility model content
For the comprehensively solve above problem, in particular for deficiency of the prior art, the utility model provides one
Kind fuse unit, lower plum blossom seat are fixed with lower contact base by screw, and fixation is stronger, and being provided with arc extinguishing grid pieces can
To carry out isolation arc extinguishing well, be conducive to improve conductive effect, striker, which is connect by buffer spring with upper plum blossom seat, to be conducive to
Better buffer function is played, the damage of striker is reduced, mouth component is provided with seesaw, striker impact seesaw, and seesaw is hit again
End cap, kinetic energy efficiency are high.
To achieve the above object, the utility model uses following technological means:
A kind of fuse unit, including shell, mouth component, rubber sleeve, the cartridge fuse being set in shell, lower contact base, on
Plum blossom seat and lower plum blossom seat are provided with step surface on the lower contact base inner wall, and the lower end surface of shell withstands on the step surface
On, the fin of lower plum blossom seat is stuck between the step surface of lower contact base and the lower end surface of shell, is provided in the lower plum blossom seat
Lower plum blossom seat is fixed on lower contact base by screw, is set inside the cartridge fuse by arc extinguishing grid pieces, the arc extinguishing grid pieces bottom
It is equipped with striker, the mouth component and shell are sealed using rubber sleeve, and the mouth component, which is equipped with, supplies the striker edge
The striker of the axial activity setting of mouth component accommodates lumen, and the striker accommodates lumen rear end and is threadedly coupled with upper plum blossom seat,
The striker rear end is provided with link block, and the link block is connect by buffer spring with upper plum blossom seat.
Further, the fin of the lower plum blossom seat and the angle of fuse unit axial direction are 45 ° -70 °.
Further, the shell is epoxide resin material.
Further, it is provided with end cap corresponding with striker on the mouth component, is provided with connecting plate in the end cap,
It is hingedly provided in the connecting plate and corresponding with end cap lifts up bar.
Further, it is provided with articulated slab on the connecting plate, is provided on the articulated slab corresponding with bar is lifted up hinged
Hole, described lift up are provided with hinge bar corresponding with hinge hole on bar, the articulated slab top is provided with limit corresponding with bar is lifted up
Bolt.
The utility model has the beneficial effects that the utility model structure is simple, lower plum blossom seat and lower contact base by screw into
Row is fixed, and fixation is stronger, and is provided with arc extinguishing grid pieces and can carry out that arc extinguishing is isolated well, is conducive to improve conductive effect
Fruit, striker, which is connect by buffer spring with upper plum blossom seat, is conducive to play better buffer function, reduces the damage of striker, mouth
Component is provided with seesaw, striker impact seesaw, and seesaw hits end cap again, and kinetic energy efficiency is high.
Detailed description of the invention
Fig. 1 is the end view of the utility model；
Fig. 2 is Section A-A structural schematic diagram in Fig. 1；
Fig. 3 is enlarged diagram at AB in Fig. 2；
Fig. 4 is enlarged diagram at AD in Fig. 2；
Fig. 5 is the schematic perspective view one of the utility model；
Fig. 6 is the schematic perspective view two of the utility model.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention
As shown in Figures 1 to 6, it the present embodiment provides a kind of fuse unit, including shell 1, mouth component 2, rubber sleeve 3, sets
It is placed in cartridge fuse 4 in shell, lower contact base 5, upper plum blossom seat 6 and lower plum blossom seat 7, is set on 7 inner wall of lower contact base
It is equipped with step surface 8, the lower end surface of shell is withstood on the step surface 8, and the fin 10 of lower plum blossom seat is stuck in the step surface of lower contact base
Between the lower end surface of shell, arc extinguishing grid pieces 9 are provided in the lower plum blossom seat, 9 bottom of arc extinguishing grid pieces passes through screw 11
Lower plum blossom seat is fixed on lower contact base, the cartridge fuse is internally provided with striker 12, and the mouth component 2 is used with shell
Rubber sleeve 3 is sealed, and the striker that the mouth component is equipped with for the striker along the axial activity setting of mouth component holds
Receive lumen 1201, the striker accommodates lumen rear end and is threadedly coupled with upper plum blossom, and the striker rear end is provided with link block
1202, the link block is connect by buffer spring 1203 with upper plum blossom seat.
Wherein, the fin of the lower plum blossom seat and the angle of fuse unit axial direction are 45 ° -70 °.
The shell is epoxide resin material.
It is provided with end cap 201 corresponding with striker on the mouth component, connecting plate 202, institute are provided in the end cap
It states hingedly to be provided in connecting plate and corresponding with end cap lifts up bar 203.
It is provided with articulated slab 204 on the connecting plate, hinge hole 205 corresponding with bar is lifted up is provided on the articulated slab,
Described lift up is provided with hinge bar 206 corresponding with hinge hole on bar, the articulated slab top is provided with limit corresponding with bar is lifted up
Bolt 207.
The present embodiment structure is simple, and lower plum blossom seat is fixed with lower contact base by screw, and fixation is stronger, and
Being provided with arc extinguishing grid pieces can carry out that arc extinguishing is isolated well, be conducive to improve conductive effect, striker by buffer spring with it is upper
Plum blossom seat connection is conducive to play better buffer function, reduces the damage of striker, mouth component is provided with seesaw, striker impact
Seesaw, seesaw hit end cap again, and kinetic energy efficiency is high.
Examples for clearly illustrating the present invention, and do not limit the embodiments.For the ordinary skill people of fields
For member, other different forms of changes or modifications may be made based on the above description, there is no need and unable to right
All embodiments are exhaustive, and thus changes and variations that derived from are still in the utility model
In protection scope.
Claims (5)
1. a kind of fuse unit, which is characterized in that including shell, mouth component, rubber sleeve, the cartridge fuse being set in shell, under
Contact base, upper plum blossom seat and lower plum blossom seat, are provided with step surface on the lower contact base inner wall, the lower end surface of shell is withstood on
On the step surface, the fin of lower plum blossom seat is stuck between the step surface of lower contact base and the lower end surface of shell, the lower plum blossom seat
Arc extinguishing grid pieces are inside provided with, lower plum blossom seat is fixed on lower contact base by the arc extinguishing grid pieces bottom by screw, the fuse
Pipe is internally provided with striker, and the mouth component and shell are sealed using rubber sleeve, and the mouth component is equipped with for institute
The striker for stating axial activity setting of the striker along mouth component accommodates lumen, and the striker accommodates lumen rear end and upper plum blossom seat spiral shell
Line connection, the striker rear end are provided with link block, and the link block is connect by buffer spring with upper plum blossom seat.
2. a kind of fuse unit according to claim 1, which is characterized in that the fin and fuse unit of the lower plum blossom seat are axial
Angle be 45 ° -70 °.
3. a kind of fuse unit according to claim 1, which is characterized in that the shell is epoxide resin material.
4. a kind of fuse unit according to claim 1, which is characterized in that be provided on the mouth component corresponding with striker
End cap, be provided with connecting plate in the end cap, be hingedly provided in the connecting plate and corresponding with end cap lift up bar.
5. a kind of fuse unit according to claim 4, which is characterized in that articulated slab is provided on the connecting plate, it is described
Hinge hole corresponding with bar is lifted up is provided on articulated slab, described lift up is provided with hinge bar corresponding with hinge hole, the hinge on bar
Fishplate bar top is provided with caging bolt corresponding with bar is lifted up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920490549.1U CN209658124U (en) | 2019-04-12 | 2019-04-12 | A kind of fuse unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920490549.1U CN209658124U (en) | 2019-04-12 | 2019-04-12 | A kind of fuse unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209658124U true CN209658124U (en) | 2019-11-19 |
Family
ID=68529132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920490549.1U Active CN209658124U (en) | 2019-04-12 | 2019-04-12 | A kind of fuse unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209658124U (en) |
-
2019
- 2019-04-12 CN CN201920490549.1U patent/CN209658124U/en active Active
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