CN205789452U - End structure and there is the bushing shell for transformer of this end structure - Google Patents
End structure and there is the bushing shell for transformer of this end structure Download PDFInfo
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- CN205789452U CN205789452U CN201620441955.5U CN201620441955U CN205789452U CN 205789452 U CN205789452 U CN 205789452U CN 201620441955 U CN201620441955 U CN 201620441955U CN 205789452 U CN205789452 U CN 205789452U
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Abstract
The open a kind of end structure of this utility model, for bushing shell for transformer, this bushing shell for transformer includes insulation tube in oil and the capacitor core being positioned in this oil in insulation tube, this capacitor core includes centre pipe, above-mentioned end structure includes base and end cap, first through hole is set on this base and for fixing the fixing groove of insulation tube in above-mentioned oil, second through hole of corresponding above-mentioned first through hole is set on above-mentioned end cap, above-mentioned centre pipe is through above-mentioned first through hole and is fixed in above-mentioned second through hole, and above-mentioned end cap is detachably fixed with above-mentioned base and is connected.End structure of the present utility model, overall structure is simple, easy accessibility, low cost of manufacture.This utility model is also disclosed a kind of bushing shell for transformer with this end structure.
Description
Technical field
This utility model relates to insulator arrangement field of transmitting electricity, specifically a kind of end structure and have this
The bushing shell for transformer of end structure.
Background technology
Bushing shell for transformer is the primary insulation device outside transformer tank, and the lead-out wire of Transformer Winding is necessary
Through insulated sleeve, make to insulate between lead-out wire and between lead-out wire and transformer case, rise solid simultaneously
Determine the effect of lead-out wire.Capacitance type transformer sleeve is by capacitor core, composite sheath, metal-ware etc.
Composition.Capacitor core generally comprises centre pipe and the cable paper being wound on centre pipe and aluminium foil.
Traditional bushing shell for transformer, when assembling capacitor core, uses centre pipes and round nut screw thread more
The mode coordinated, must make capacitor core rotate against to coordinate with round nut and be attached during installation.By
Generally individually use aluminum component in centre pipe and round nut, thread biting locking easily occurs during dismounting, cause installing
Dismounting inconvenience, assembling consumes a longer time, and capacitor core exposes for a long time and the most easily absorbs water
Point, finally affect its performance.Additionally, due to capacitor core is heavier, typically set on centre pipe top
Meter preformed hole uses frock to carry out Screw assembly, complex operation, and assembly work amount is big, assembly difficulty
Relatively big, increase the time of assembling, thus increase product cost.
Utility model content
For the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of end structure,
The overall structure of this end structure is simple, easy accessibility, low cost of manufacture.
For realizing above-mentioned utility model purpose, the technological means that this utility model is used is as follows: a kind of
End structure, for bushing shell for transformer, this bushing shell for transformer includes in oil insulation tube and is positioned in this oil
Capacitor core in insulation tube, this capacitor core includes that centre pipe, above-mentioned end structure include base
And end cap, this base arranges the first through hole and for fixing the fixing groove of insulation tube in above-mentioned oil, on
Stating the second through hole arranging corresponding above-mentioned first through hole on end cap, above-mentioned centre pipe passes above-mentioned first
Through hole is also fixed in this second through hole, and above-mentioned end cap is detachably fixed with above-mentioned base and is connected.
Above-mentioned end structure, owing to arranging base and end cap, by centre pipe through first on base
In through hole the second through hole of being fixed on end cap, it is detachably fixed that be connected can by end cap and base
To carry out the Assembly And Disassembly of capacitor core, simple in construction easily, reduce assembly work amount, fall
Low cost.
Preferably, sealing structure is set between above-mentioned end structure and above-mentioned centre pipe, above-mentioned first
First seal groove is set on through-hole wall, above-mentioned first seal groove arranges the first sealing ring.So may be used
To conveniently realize the assembling of bushing shell for transformer lower end oil-leakage-prevention.
Preferably, above-mentioned end structure arranges the second seal groove, above-mentioned second seal groove arranges
Two sealing rings, this second seal groove is arranged on above-mentioned second through-hole wall or above-mentioned end cap is with above-mentioned
On the faying face of base.So can realize the oil-leakage-prevention dual-seal of bushing shell for transformer lower end, strengthen close
Envelope effect.
Preferably, above-mentioned second through-hole wall radially arranges at least one first hole, location, on
State the part that centre pipe is placed in above-mentioned second through hole and the second hole, location of corresponding number is set, on
State and the first hole, location arranges keeper be detachably fixed be connected with above-mentioned second hole, location.The most permissible
Conveniently realize the location of centre pipe, prevent centre pipe play vertically from damaging internal structure.
Preferably, above-mentioned end cap arranges at least two the first fixing hole, above-mentioned base is arranged corresponding
Second fixing hole of number, arranges fixture removable with above-mentioned second fixing hole in above-mentioned first fixing hole
Unload fixing connection.So can conveniently realize removably connecting of base and end cap so that install and tear open
Unload conveniently, reduce assembly work amount.
Preferably, above-mentioned base arranges groove, above-mentioned end cap away from the side of insulation tube in described oil
It is placed in this groove.So end cap can be built in base, prevent sharp corners from affecting transformation
The Electric Field Distribution of device cannula tip.
Preferably, in above-mentioned oil, insulation tube is that fiber winding forming mucilage binding are in above-mentioned fixing groove.This
Sample makes insulation tube anti-seismic performance in oil good, simple with the attachment structure of base, easy to operate.
For the deficiencies in the prior art, the two of the purpose of this utility model are to provide a kind of transformator set
Pipe, this bushing shell for transformer uses end structure provided by the utility model.
Above-mentioned bushing shell for transformer, owing to using above-mentioned end structure, can conveniently realize capacitor core
Installation and dismounting, reduce assembly work amount, reduce cost.
Accompanying drawing explanation
Fig. 1 is the partial cutaway schematic of the bushing shell for transformer 001 of this utility model embodiment one；
Fig. 2 is the schematic diagram of the end cap 120 of this utility model embodiment one；
Fig. 3 is the section signal of end structure 010 A-A along Fig. 2 of this utility model embodiment one
Figure；
Fig. 4 is the generalized section of the end structure 210 of this utility model embodiment two；
Fig. 5 is the generalized section of the end structure 310 of this utility model embodiment three；
Detailed description of the invention
As requested, detailed description of the invention of the present utility model will be disclosed here.It is, however, to be understood that
, embodiments disclosed herein is only exemplary of the present utility model, and it can body
It it is now various forms.Therefore, the detail disclosed here is not to be considered as limiting, and only
It it is the basis as claim and as instructing those skilled in the art with any in reality
Appropriate mode differently applies representational basis of the present utility model, described herein including using
Various features and combine be likely not to have the feature clearly disclosed here.
Embodiment one:
As shown in Figure 1-Figure 3, the bushing shell for transformer 001 of this utility model first embodiment has end
Structure 010.Specifically, bushing shell for transformer 001 also includes capacitor core, head 020, compound sleeve
Pipe 030, base flange 040, transformer pipe 050, insulation tube 060 in oil, binding post 070.
Specifically, capacitor core is positioned in oil in insulation tube 060, and capacitor core includes centre pipe 101.
Seeing Fig. 1-Fig. 3, end structure 010 includes base 110 and end cap 120, on base 110
Arrange the first through hole 111 and in fixing oil the fixing groove 112 of insulation tube 060, on end cap 120
Arranging second through hole 121 corresponding with the first through hole 111, centre pipe 101 is through the first through hole 111
And be fixed in the second through hole 121, end cap 120 is detachably fixed with base 110 and is connected.
Specifically, base 110 and centre pipe 101 all use the metal material such as aluminum or copper to make.The end
Seat 110 is in annular, and the endoporus of annulus forms the first through hole 111, and the first through hole 111 is unthreaded hole,
The diameter of the first through hole 111 adapts with the external diameter of centre pipe 101, to facilitate centre pipe 101
Through the first through hole 111.Base 110 arranges fixing in oil on the end face of insulation tube 060 side
Groove 112, fixing groove 112 is circular groove, and the groove width of groove is slightly larger than the wall of insulation tube 060 in oil
Thickness, the degree of depth of groove determines according to actual fixed demand.
Seeing Fig. 3, in oil, insulation tube 060 is fiber winding forming, and this fiber can be glass fibre,
It can also be aramid fiber；In oil, insulation tube 060 can be Wrapping formed, also by fiber impregnated resin
Casting resin curing molding again after fiber can being wound around.In the present embodiment, oil insulate
Pipe 060 is that glass fiber impregnated epoxy resin is Wrapping formed, and mucilage binding is in fixing groove 112.Specifically
Ground, in the present embodiment, during in oil, insulation tube 060 puts into fixing groove 112 after, outside fixing groove 112
The gap formed between insulation tube 060 outer wall in the inwall of circle and oil is mucilage binding groove 113.At mucilage binding groove
Insulation tube 060 in glue mucilage binding oil is injected in 113.
See Fig. 3, in the present embodiment, arrange close between end structure 010 and centre pipe 101
Seal structure.Specifically, the inwall of the first through hole 111 arranging the first seal groove 115, first seals
Groove 115 arranges the first sealing ring 116.Specifically, the first seal groove 115 is along end structure 010
The cross section of axis direction is rectangle.First sealing ring 116 is O RunddichtringO, can use EPDM,
Any material in the materials such as nitrile rubber, fluorubber or fluorosioloxane rubber makes.Certainly, this practicality is new
Type is not limited to this, and the first seal groove 115 can be ladder along the cross section of end structure 010 axis direction
Other shapes such as shape, triangle；First sealing ring 116 can also use rectangular seal, trapezoidal close
Seal, special-shaped seal ring etc., as long as enabling between the first through hole 111 and centre pipe 101 close
Seal.
Seeing Fig. 2 and Fig. 3, end cap 120 uses the metal material such as aluminum or copper to make.End cap 120 in
Annular, the endoporus of annulus forms the second through hole 121, and the second through hole 121 is unthreaded hole and is stepped hole,
Step surface 124 is formed between hole 122 that it is relatively large in diameter and the less hole 123 of diameter.Hole 122
The diameter of diameter and the first through hole 111 is identical, and the diameter in hole 123 is slightly less than the diameter in hole 122, with
Centre pipe 101 is facilitated to be placed on step surface 124 through hole 122.
Second through hole 121 inwall radially arranges hole 125, two first location.Specifically,
Hole 125, two first location is arranged along the radial symmetric of end cap 120, is screw-threaded counterbore.At center
Conduit 101 arranges hole 102, two second location with being placed in the partial response in the second through hole 121,
Hole 102, two second location is arranged along the radial symmetric of centre pipe 101, is unthreaded hole.
Two keepers 126 and hole, two second location it is respectively provided with in hole 125, two first location
102 are detachably fixed connection.Specifically, in the present embodiment, keeper 126 uses bolt, peace
During dress, centre pipe 101 through the first through hole 111 and is placed in the second through hole 121, rotates
End cap 120 makes hole 125, two first location corresponding, then with hole 102, two second location respectively
Keeper 126 is screwed into the first hole, location 125, and makes the threaded shank of bolt stretch out the first hole, location
125 and stretch in the second hole, location 102, thus centre pipe 101 is fixed on the second through hole 121
In.Now, during the head of bolt hides the first hole, location 125 completely, it is to avoid shape on end cap 120
Become projection or wedge angle.
Certainly, this utility model is not limited to this, and the first hole 125, location can also be one or three
Or it is more, as long as the second matched the carrying out in hole 102, location arranging corresponding number positions and fix
?.First hole 125, location is it can also be provided that unthreaded hole, and the second hole 102, location is set to spiral shell
Pit, is screwed into the second hole, location 102 by the threaded shank of keeper 126 through the first hole 125, location,
Equally realize the fixing of centre pipe 101.Or can be by fixed for the first hole, location 125 and second
Hole 102, position is disposed as screwed hole, as long as being capable of the fixing of centre pipe 101.
See Fig. 2 and Fig. 3, end cap 120 sets along its axial direction (i.e. above-below direction in figure)
Put six the first fixing holes 127.Specifically, six the first fixing holes 127 are unthreaded hole and are set to
Counter bore structure, and six the first fixing holes 127 are through hole, the circumference along end cap 120 is uniformly arranged.
Being correspondingly arranged six the second fixing holes 117 on base 110, six the second fixing holes 117 are spiral shell
Pit, the circumference along base 110 is uniformly arranged, corresponding with six the first fixing holes 127 respectively.
Six the first fixing holes 127 are respectively provided with six fixtures 128 and six the second fixing holes
117 are detachably fixed connection.Specifically, in the present embodiment, fixture 128 uses bolt, peace
During dress, rotating end cap 120 make six the second fixing holes 117 respectively with six the first fixing holes 127
Corresponding, then the threaded shank of fixture 128 is screwed into the second fixing hole through the first fixing hole 127
117, tighten and can be connected fixing with base 110 to end cap 120 and capacitor core.Now, bolt
Head hide in the first fixing hole 127 completely, it is to avoid on end cap 120, form projection or wedge angle.
On base 110, the side away from insulating cylinder in oil 060 arranges groove 118, groove 118 ringwise,
Its diameter slightly larger than the height of end cap 120, so works as end slightly larger than the diameter of end cap 120, its groove depth
Lid 120 and capacitor core are fixed with base 110 when being connected, and end cap 120 is placed in groove 118 completely
In.The outer rim of base 110 is smooth arc, and the most whole end structure 010 is overall round and smooth, without appointing
What projection or wedge angle, can improve the distribution of high voltage electric field, play all pressure effects, it is not necessary to additionally arrange and all press
Spherical structure, simplifies the overall structure of end structure 010, thus simplifies the structure of bushing shell for transformer 001.
Certainly, this utility model is not limited to this, and the first fixing hole 127 can also be two or three
Or four or five or more, as long as the second fixing hole 117 that corresponding number is set matched enter
Row location is with fixing.In addition it is also possible to the first fixing hole 127 is set to screw-threaded counterbore.With
Sample can also arrange voltage equalizing ball structure according to demand outside end structure 010 again.
See Fig. 3, end structure 010 arranges the second seal groove 103, in the second seal groove 103
Second sealing ring 104 is set.Specifically, in the present embodiment, the second seal groove 103 is arranged on end
On the faying face of lid 120 and base 110, with end cap 120, base 110 while of the second sealing ring 104
And centre pipe 101 contacts and seals.More specifically, the second seal groove 103 is end cap
120 chamferings arranged on the second through hole 121 edge on base 110 1 side end face, second is close
Seal 104 uses delta-ring, can use EPDM, nitrile rubber, fluorubber or fluorine silicon
Any material in the materials such as rubber makes.Certainly, the second sealing ring 104 can also use O shape close
Seal, rectangular seal, ladder-shaped sealing ring, special-shaped seal ring etc..
In conjunction with Fig. 1-Fig. 3, the assembly method of end structure 010 is described: put by the first sealing ring 116
Put in the first seal groove 115, by centre pipe 101 through the first through hole 111, seal second
Circle 104 is placed in the second seal groove 103, and is placed on step surface 124 by centre pipe 101,
Rotating end cap 120 makes the first hole, location 125 corresponding with the second hole 102, location, uses keeper
Centre pipe 101 is fixed by 126 with end cap 120.Then by whole to end cap 120 and centre pipe 101
Body moves upwardly so that the upper surface of end cap 120 and the inner surface laminating of groove 118, uses fixture
128 are connected fixing with base 110 for end cap 120.
Bushing shell for transformer 001 in the present embodiment, owing to using above-mentioned end structure 010, Ke Yifang
Just realize installation and the dismounting of capacitor core, reduce assembly work amount, reduce cost.
Embodiment two:
As shown in Figure 4, the end structure 210 of this utility model the second embodiment and first embodiment base
This is identical, and unlike first embodiment, the second seal groove 203 is arranged on the second through hole 221
On inwall.Specifically, the second seal groove 203 is arranged on hole 222, when centre pipe 201 is placed
Time on step surface 224, the second seal groove 203 is positioned at the top in the second hole, location 202.
Embodiment three:
As it is shown in figure 5, the end structure 310 of this utility model the 3rd embodiment and first embodiment base
This is identical, and unlike first embodiment, the second seal groove 303 is arranged on the upper end of end cap 320
On face.
Certainly, this utility model is not limited to this, and the second seal groove 303 can also be arranged on groove 328
Inner surface on.Or can also on the upper surface of end cap 320, on the inner surface of groove 328 with
And second through hole 321 inwall on be respectively provided with seal groove and sealing ring, form multi-sealing structure, increase
Strong sealing effectiveness.
Technology contents of the present utility model and technical characterstic have revealed that as above, it being understood, however, that at this
Under the creative ideas of utility model, said structure and material can be made various by those skilled in the art
Changes and improvements, including the combination of the technical characteristic individually disclosing here or claiming, it will be apparent that bag
Include other combination of these features.These deformation and/or combination each fall within the skill involved by this utility model
In art field, and fall into this utility model scope of the claims.
Claims (8)
1. an end structure, for bushing shell for transformer, described bushing shell for transformer includes insulation tube and position in oil
The capacitor core in insulation tube in described oil, described capacitor core includes centre pipe, its feature
Be: described end structure includes base and end cap, described base is arranged the first through hole and for
The fixing groove of insulation tube in fixing described oil, described end cap arranges the of corresponding described first through hole
Two through holes, described centre pipe is through described first through hole and is fixed in described second through hole, institute
State end cap to be detachably fixed with described base and be connected.
2. end structure as claimed in claim 1, it is characterised in that: described end structure and described center
Sealing structure is set between conduit, described first through-hole wall arranges the first seal groove, described
One seal groove arranges the first sealing ring.
3. end structure as claimed in claim 1, it is characterised in that: arrange second on described end structure
Seal groove, arranges the second sealing ring in described second seal groove, described second seal groove is arranged on institute
State on the second through-hole wall or on the faying face of described end cap and described base.
4. end structure as claimed in claim 1, it is characterised in that: along it on described second through-hole wall
Being radially arranged at least one first hole, location, described centre pipe is placed in described second through hole
Part arranges the second hole, location of corresponding number, arranges keeper with described in described first hole, location
Second hole, location is detachably fixed connection.
5. end structure as claimed in claim 1, it is characterised in that: on described end cap, at least two is set
First fixing hole, described base arranges the second fixing hole of corresponding number, described first fixing hole
In fixture is set is detachably fixed with described second fixing hole and is connected.
6. end structure as claimed in claim 1, it is characterised in that: away from described oil on described base
The side of insulation tube arranges groove, and described end cap is placed in described groove.
7. end structure as claimed in claim 1, it is characterised in that: in described oil, insulation tube is that fiber twines
Around molding mucilage binding in described fixing groove.
8. a bushing shell for transformer, it is characterised in that: described bushing shell for transformer uses claim 1 to right
Require the end structure according to any one of 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620441955.5U CN205789452U (en) | 2016-05-16 | 2016-05-16 | End structure and there is the bushing shell for transformer of this end structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620441955.5U CN205789452U (en) | 2016-05-16 | 2016-05-16 | End structure and there is the bushing shell for transformer of this end structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205789452U true CN205789452U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620441955.5U Active CN205789452U (en) | 2016-05-16 | 2016-05-16 | End structure and there is the bushing shell for transformer of this end structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN205789452U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869859A (en) * | 2016-05-16 | 2016-08-17 | 江苏神马电力股份有限公司 | Tail end structure and transformer bushing provided with tail end structure |
| CN107887086A (en) * | 2017-10-10 | 2018-04-06 | 江苏神马电力股份有限公司 | A kind of insulator and its adhesive binding method |
| KR20200101438A (en) * | 2018-01-23 | 2020-08-27 | 에이비비 파워 그리즈 스위처랜드 아게 | Sealing arrangements for bushings and bushings having such sealing arrangements |
-
2016
- 2016-05-16 CN CN201620441955.5U patent/CN205789452U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869859A (en) * | 2016-05-16 | 2016-08-17 | 江苏神马电力股份有限公司 | Tail end structure and transformer bushing provided with tail end structure |
| CN107887086A (en) * | 2017-10-10 | 2018-04-06 | 江苏神马电力股份有限公司 | A kind of insulator and its adhesive binding method |
| KR20200101438A (en) * | 2018-01-23 | 2020-08-27 | 에이비비 파워 그리즈 스위처랜드 아게 | Sealing arrangements for bushings and bushings having such sealing arrangements |
| KR102397155B1 (en) | 2018-01-23 | 2022-05-12 | 히타치 에너지 스위처랜드 아게 | Sealing arrangement for bushings and bushings with such sealing arrangement |
| US11769611B2 (en) | 2018-01-23 | 2023-09-26 | Hitachi Energy Switzerland Ag | Sealing arrangement for a bushing and a bushing with such a sealing arrangement |
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