CN207021129U - A kind of porcelain bushing type bushing shell for transformer - Google Patents
A kind of porcelain bushing type bushing shell for transformer Download PDFInfo
- Publication number
- CN207021129U CN207021129U CN201720579115.XU CN201720579115U CN207021129U CN 207021129 U CN207021129 U CN 207021129U CN 201720579115 U CN201720579115 U CN 201720579115U CN 207021129 U CN207021129 U CN 207021129U
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- Prior art keywords
- insulator
- flange
- insulating sleeve
- wall
- air end
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Abstract
The utility model discloses a kind of porcelain bushing type bushing shell for transformer, including：Core body, including contact tube and insulating sleeve, contact tube one end is oily end, the other end is air end, sets annular protrusion in the middle part of insulating sleeve, lead is connect on outer wall；Flange, it is placed on insulating sleeve, inwall sets annular groove, opens up grounded chamber；Insulator, insulating sleeve outer wall is placed on, one end sets connecting portion, is inserted in flange, connecting portion and flange contact facings coating cementing layer；Insulator fastener, the side opening of insulator one is sheathed on, outer wall sets annular clinch, and clinch one end sets overlap joint groove；Seal closure, is placed on insulating sleeve, and open end cap is located at another openend of insulator fastener；Air end terminal；Oily end terminal.Flange first can be arranged on bushing shell for transformer core body by described sleeve pipe, install after ground wire in glue bonding porcelain sleeve, ensureing properties of product, in the case of keeping fitted position and immersion oil length constant, and having the characteristics that aesthetic in appearance, size is small, in light weight, production cost is low.
Description
Technical field
The utility model belongs to high-tension electricity equipment technical field, and in particular to a kind of porcelain bushing type bushing shell for transformer.
Background technology
Bushing shell for transformer is the primary insulation device outside transformer tank, and the lead-out wire of Transformer Winding has to pass through insulation sleeve
Pipe, make to insulate between lead-out wire and between lead-out wire and transformer case, while play fixation lead-out wire.Because of voltage class
Difference, insulating sleeve have the forms such as pure porcelain casing tube, oil filled bushing and capacitance graded bushing.Pure porcelain casing tube is used for 10kV and following transformation
Device, it is that a conductive copper bar is worn in porcelain bushing shell, is air insulation in insulator.Oil filled bushing is used in 35kV level transformers more,
It is oil-filled in porcelain bushing shell, and a conductive copper bar, copper bar outsourcing insulating paper are worn in porcelain bushing shell.Condenser-type terminal is by major insulation electricity
Hold fuse, lower ceramic part on external insulation, branch sleeve, conservator, spring assembling, base, voltage equalizing ball, measurement terminal, binding post, rubber
Leather washer, insulating oil etc. form.It is used for more than 100kV high voltage transformer.
Have to bushing shell for transformer claimed below：
1) must have defined electrical strength and enough mechanical strengths；
2) moment when must have good heat endurance, and can bear short circuit overheats；
3) profile is small, quality is small, good seal performance, versatile and be easy to repair.
Most of porcelain bushing type bushing shell for transformer lower flange is by insulator producer mucilage binding, bushing shell for transformer factory in the market
Family need to redesign a flange and is connected with porcelain sleeve flange.Add production cost.
For thrombus treatment, the current country is primarily present following patent document：
Authorization Notice No. is CN205542336U Chinese patent literature, discloses a kind of flange seal of bushing shell for transformer
Oil leak may occur for structure, the flange for mainly solving the problems, such as existing bushing shell for transformer.It includes insulation core body, flange, sealing
Circle, flange plate, fixing screws, Nian Jie by casting glue perfusion solidify afterwards between the insulation core body and flange, the insulating core
Sealing ring is provided with the ring-type triangular groove that body, flange and flange plate are formed, flange plate is connected by fixing screws with flange.This reality
With new by increasing by one layer of effective sealing, the oil leak feelings between bushing shell for transformer flange and insulation core body are improved well
Condition, it ensure that the flange seal of bushing shell for transformer.However, the flange sealing structure that the patent is provided, is to flange and insulation
Sealing between core body, rather than the sealing between insulator and flange.
Utility model content
The purpose of this utility model is to provide a kind of porcelain bushing type bushing shell for transformer solve double flange arrangements of existing sleeve pipe
The problem of production cost is too high.
To achieve the above object, a kind of porcelain bushing type bushing shell for transformer provided by the utility model, described sleeve pipe can be first
Flange is arranged on bushing shell for transformer core body, is installed after ground wire in glue bonding porcelain sleeve, is being ensured properties of product, keeping assembling chi
It is very little and in the case that immersion oil length is constant, and have the characteristics that aesthetic in appearance, size is small, in light weight, production cost is low.
Specifically, the technical solution adopted in the utility model is：
A kind of porcelain bushing type bushing shell for transformer, described sleeve pipe include：Core body, including contact tube and be sheathed on exhausted on contact tube
Edge sleeve pipe, the openend one end of contact tube two is oily end, the other end is air end, is extended to respectively in axial direction on the outside of insulating sleeve,
Outer wall circumferentially sets an annular protrusion in the middle part of the insulating sleeve, and insulating sleeve is connected to one on the outer wall of annular protrusion side
Lead；Flange, be sheathed on the core body insulating sleeve, its inwall ring set one be engaged with the annular protrusion it is annular recessed
Groove, the grounded chamber for placing the lead is opened up positioned at the annular groove inwall side；Insulator, it is sheathed on empty close to contact tube
On the core body insulating sleeve outer wall at gas end, its companion flange one end sets connecting portion, and insulator is inserted in flange by the connecting portion,
Cementing layer has been respectively coated with flange inner wall contact surface in insulator connecting portion, forms the mucilage binding of insulator and flange, insulator outer wall edge week
Some full skirts are set to, axially spaced-apart ring；Insulator fastener, is a body, and an openend is sheathed on the insulator close to contact tube
Air end side rims, its outer wall circumferentially one annular clinch of projection, clinch correspond to insulator one end end face ring set with
The overlap joint groove that insulator outer wall is engaged, insulator fastener are sheathed on insulator openend outer wall, formation pair by the overlap joint groove
Sealing, fastening between insulator and core body insulating sleeve；Seal closure, body is shaped as, is sheathed on the core body insulating sleeve,
And one open end cap formed on the outside of another openend of the insulator fastener and between insulator fastener and be detachably connected,
Seal closure forms the sealing to core body insulating sleeve and insulator with insulator appended claims；Air end terminal, including symmetrically set
The two air end terminal plates put, two air end terminal plates respectively include a U-shaped connecting portion and from the U-shaped connecting portion bottom surface to
The connecting plate that outer bending, extension are formed, it is respectively semicircle, two air end terminal plate U that two connecting plates, which correspond to U-shaped connecting portion one end,
Type connecting portion is superimposed to form the air end terminal, and two connecting plate semi-circular ends are superimposed to form a connection through hole, air end terminal
The core body contact tube air end opening is sheathed on by the connection through hole；Oily end terminal, including oily terminated line plate and with oil
The sleeve of terminated line plate one end connection, sleeve side wall one end set opening vertically, and opening both ends outward bending, extension are formed
Two tight lock parts, locking hole is opened up on tight lock part, and locking member is inserted in the regulation that butted line cover locking degree is formed in locking hole, oil
End terminal is sheathed on the contact tube oil end opening by sleeve.
Further, the insulator opens up fluted with flange contact facings.
Further, the insulator and flange contact facings be also coated with one layer of bitumen layer, the bitumen layer and cementing layer by
It is interior to being coated on the insulator and flange contact facings successively outside.
Further, the air end plate surface opens up some air end wiring holes, the U types connection surface
Fixing hole is offered, U-shaped connecting portion is formed a fixed connection by the fixing bolt being inserted in fixing hole, and air end terminal is with leading
Tube air end opening junction is fixed by clamp nut, locked.
Further, if the oily terminated line plate surface opens up drier oil terminated line hole.
Further, the locking member is bolt.
Further, the flange corresponds to contact tube oil end side rims circumferentially ring sets an annulus, the annulus one
Side offers a grounding through hole vertically.
Further, the insulator fastener is provided with O-ring seal with insulator openend outer wall junction.
Further, the seal closure is provided with O-ring seal with insulator fastener junction；Seal closure and insulator fastener
Between by fastening bolt formed be detachably connected.
Further, the air end terminal connection through hole is provided with O-ring seal with contact tube air end opening junction；
The oily end terminal sleeve is provided with O-ring seal with contact tube oil end opening junction.
The utility model has the following advantages that：
The contact surface car groove of mucilage binding is needed in insulator and flange and keeping coarse makes mucilage binding more firm；
Before mucilage binding, insulator, flange and cementing layer contact surface first uniformly apply one layer of pitch, ensure adhesion effect, lift-off seal
Heart infarction；
Insulator bottom is embedded in injection adhesive mucilage binding in flange；
Insulator end uses the structure design for installing insulator fastener, seal closure and clamp nut additional, while in each gold utensil
The Seal Design of O-ring seal is used between part, ensure that fastening and the sealing property of end.
Brief description of the drawings
Fig. 1 is the structural representation of core body in a kind of porcelain bushing type bushing shell for transformer provided by the utility model.
Fig. 2 is the structural representation of insulator in a kind of porcelain bushing type bushing shell for transformer provided by the utility model.
Fig. 3 is the structural representation of flange in a kind of porcelain bushing type bushing shell for transformer provided by the utility model.
Fig. 4 is the structural representation of insulator fastener in a kind of porcelain bushing type bushing shell for transformer provided by the utility model.
Fig. 5 is the structural representation of air end terminal in a kind of porcelain bushing type bushing shell for transformer provided by the utility model.
Fig. 6 is Fig. 5 side view.
Fig. 7 is Fig. 5 top view.
Fig. 8 is the structural representation of seal closure in a kind of porcelain bushing type bushing shell for transformer provided by the utility model.
Fig. 9 is the structural representation of oily end terminal in a kind of porcelain bushing type bushing shell for transformer provided by the utility model.
Figure 10 is Fig. 9 top view.
Figure 11 is a kind of general assembly structural representation of porcelain bushing type bushing shell for transformer provided by the utility model.
Embodiment
The utility model is described further below by specific embodiment, but embodiment is not intended to limit this practicality newly
The protection domain of type.
Embodiment 1
Referring to Fig. 1~Figure 11, a kind of porcelain bushing type bushing shell for transformer provided by the utility model, described sleeve pipe includes：Core
Body 1, including contact tube 11 and the insulating sleeve 12 that is sheathed on contact tube 11,11 liang of openends of contact tube one end be oily end 111,
The other end is air end 112, extends to the outside of insulating sleeve 12 respectively in axial direction, the middle part outer wall of insulating sleeve 12 is circumferentially
If an annular protrusion 121, insulating sleeve 12 is connected to a lead 122 on the outer wall of the side of annular protrusion 121；Flange 2, set
On the insulating sleeve 12 of core body 1, its inwall ring sets an annular groove 21 being engaged with the annular protrusion 121, position
The grounded chamber 22 for placing the lead 122 is opened up in the inwall side of annular groove 21；Insulator 3, it is sheathed on close to conduction
On the outer wall of 1 insulating sleeve of core body 12 of the air end 112 of pipe 11, its one end of companion flange 2 sets connecting portion 31, and insulator 3 passes through the company
Socket part 31 is inserted in flange 2, and cementing layer (not shown), shape has been respectively coated with the inwall contact surface of flange 2 in the connecting portion 31 of insulator 3
Into the mucilage binding of insulator 3 and flange 2, the outer wall of insulator 3 circumferentially, axially spaced-apart ring set some full skirts 32；Insulator fastener 4, it is one
Body, it is circumferentially convex close to the side rims of 11 air end of contact tube 112, its outer wall that an openend is sheathed on the insulator 3
If an annular clinch 41, the corresponding one end end face ring of insulator 3 of clinch 41 sets the overlap joint groove 42 being engaged with the outer wall of insulator 3,
Insulator fastener 4 is sheathed on the openend outer wall of insulator 3 by the overlap joint groove 42, is formed to insulator 3 and the insulating sleeve 12 of core body 1
Between sealing, fastening；Seal closure 5, is shaped as body, is sheathed on the insulating sleeve 12 of core body 1, and an open end cap is set
Formed on the outside of 4 another openend of insulator fastener and between insulator fastener 4 and be detachably connected, seal closure 5 and porcelain
Harness fastener 4 cooperatively forms the sealing to the insulating sleeve 12 of core body 1 and insulator 3；Air end terminal 6, including it is symmetrically arranged
Two air end terminal plates 61, two air end terminal plates 61 include a U-shaped connecting portion 611 and by the U-shaped connecting portions 611 respectively
The connecting plate 612 that bottom surface outward bending, extension are formed, the corresponding U-shaped one end of connecting portion 611 of two connecting plates 612 is respectively semicircle,
The superposition of two air end terminal plate 61U types connecting portions 611 forms the air end terminal 6, the semi-circular end of two connecting plate 612 superposition shape
Into a connection through hole 62, air end terminal 6 is sheathed on the air end 112 of 1 contact tube of core body 12 by the connection through hole 62 and opened
Mouthful；Oily end terminal 7, including oily terminated line plate 71 and the sleeve 72 that is connected with oily one end of terminated line plate 71, the side of sleeve 72
Wall one end sets opening 73 vertically, and 73 both ends outward bendings of opening, extension form two tight lock parts 731, lock opened up on tight lock part 731
Tieholen 732, locking member (not shown) are inserted in the regulation that the locking degree of butted line set 72 is formed in locking hole, and oily end terminal 7 is logical
Cross sleeve 72 and be sheathed on the oily end 111 of the contact tube 11 and be open.
Further, the surface of air end terminal plate 61 opens up some air end wiring holes 63, the two U-shaped connection
611 surfaces open up fixing hole 64 respectively, and U-shaped connecting portion 611 passes through the fixing bolt (not shown) that is inserted in fixing hole 64
Form a fixed connection, air end terminal 6 is fixed by clamp nut 8 with the air end 112 of contact tube 12 opening junction, locked.
Further, if the oily surface of terminated line plate 71 opens up drier oil terminated line hole 74.
Further, the locking member is bolt.
Further, circumferentially ring sets an annulus 23 to the oily side rims of end 111 of the corresponding contact tube 11 of the flange 2,
The side of annulus 23 offers a grounding through hole 231 vertically.
Further, detachably connected by fastening bolt formation (not shown) between the seal closure 5 and insulator fastener 4
Connect.
Embodiment 2
The insulator 3 opens up fluted (not shown) with the contact surface of flange 2.Remaining is the same as embodiment 1.
Embodiment 3
The insulator 3 and the contact surface of flange 2 be also coated with one layer of bitumen layer (not shown), the bitumen layer and cementing layer by
It is interior to outside successively coated on the insulator 3 and the contact surface of flange 2.Remaining is the same as embodiment 1 or 2.
Embodiment 4
The insulator fastener 4 is provided with O-ring seal (not shown) with the openend outer wall junction of insulator 3.Remaining is the same as real
Apply example 1.
Embodiment 5
The seal closure 5 is provided with O-ring seal (not shown) with the junction of insulator fastener 4.Remaining is the same as embodiment 1.
Embodiment 6
The air end terminal 6 connects through hole 62 and is provided with O-ring seal with the air end 112 of contact tube 11 opening junction
(not shown)；(do not scheme provided with O-ring seal the sleeve 72 of oily end terminal 7 opening of end 111 junction oily with contact tube 12
Show).
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, the these modifications or improvements on the basis of without departing from the utility model spirit, belonging to the utility model will
Seek the scope of protection.
Claims (10)
1. a kind of porcelain bushing type bushing shell for transformer, it is characterised in that described sleeve pipe includes：
Core body, including contact tube and the insulating sleeve that is sheathed on contact tube, the openend one end of contact tube two are oily end, the other end
For air end, extending to respectively in axial direction on the outside of insulating sleeve, outer wall circumferentially sets an annular protrusion in the middle part of the insulating sleeve,
Insulating sleeve is connected to a lead on the outer wall of annular protrusion side；
Flange, it is sheathed on the core body insulating sleeve, its inwall ring sets an annular groove being engaged with the annular protrusion,
The grounded chamber for placing the lead is opened up positioned at the annular groove inwall side；
Insulator, it is sheathed on the core body insulating sleeve outer wall of contact tube air end, its companion flange one end sets connecting portion, porcelain
Set is inserted in flange by the connecting portion, and cementing layer has been respectively coated with flange inner wall contact surface in insulator connecting portion, forms porcelain
Set and the mucilage binding of flange, insulator outer wall circumferentially, axially spaced-apart ring set some full skirts；
Insulator fastener, is a body, and an openend is sheathed on the insulator close to contact tube air end side rims, its
Outer wall circumferentially one annular clinch of projection, clinch corresponds to insulator one end end face ring, and to set the overlap joint being engaged with insulator outer wall recessed
Groove, insulator fastener are sheathed on insulator openend outer wall by the overlap joint groove, formed between insulator and core body insulating sleeve
Sealing, fastening；
Seal closure, body is shaped as, be sheathed on the core body insulating sleeve, and an open end cap is located at the insulator fastener
Formed on the outside of another openend and between insulator fastener and be detachably connected, seal closure is formed to core with insulator appended claims
The sealing of body insulating sleeve and insulator；
Air end terminal, including symmetrically arranged two air ends terminal plate, two air end terminal plates include a U-shaped connecting portion respectively
And the connecting plate formed by the U-shaped connecting portion bottom surface outward bending, extension, two connecting plates correspond to U-shaped connecting portion one end point
Wei not be semicircle, the two U-shaped connecting portions of air end terminal plate are superimposed to form the air end terminal, the superposition of two connecting plate semi-circular ends
A connection through hole is formed, air end terminal is sheathed on the core body contact tube air end opening by the connection through hole；
Oily end terminal, including oily terminated line plate and the sleeve that is connected with oily terminated line plate one end, sleeve side wall one end edge
Opening is axially set, opening both ends outward bending, extension form two tight lock parts, open up locking hole on tight lock part, locking member is inserted in
The regulation of butted line cover locking degree is formed in locking hole, oily end terminal is sheathed on the contact tube oil end by sleeve and opened
Mouthful.
2. a kind of porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the insulator and flange contact facings
Open up fluted.
3. a kind of porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the insulator and flange contact facings
One layer of bitumen layer is also coated with, the bitumen layer and cementing layer are coated on the insulator and flange contact facings successively from the inside to the outside.
A kind of 4. porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the air end plate surface
Some air end wiring holes are opened up, the U-shaped connection surface offers fixing hole, and U-shaped connecting portion is by being inserted in fixing hole
Interior fixing bolt forms a fixed connection, air end terminal and contact tube air end opening junction fixed by clamp nut,
Locking.
5. a kind of porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the oily terminated line plate surface is opened
If if drier oil terminated line hole.
6. a kind of porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the locking member is bolt.
7. a kind of porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the flange corresponds to contact tube oil
Circumferentially ring sets an annulus to end side rims, and the annulus side offers a grounding through hole vertically.
8. a kind of porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the insulator fastener and insulator
Openend outer wall junction is provided with O-ring seal.
9. a kind of porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the seal closure fastens with insulator
Part junction is provided with O-ring seal；Formed and be detachably connected by fastening bolt between seal closure and insulator fastener.
A kind of 10. porcelain bushing type bushing shell for transformer according to claim 1, it is characterised in that the air end terminal connection
Through hole is provided with O-ring seal with contact tube air end opening junction；The oily end terminal sleeve and contact tube oil end opening
Junction is provided with O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720579115.XU CN207021129U (en) | 2017-05-23 | 2017-05-23 | A kind of porcelain bushing type bushing shell for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720579115.XU CN207021129U (en) | 2017-05-23 | 2017-05-23 | A kind of porcelain bushing type bushing shell for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207021129U true CN207021129U (en) | 2018-02-16 |
Family
ID=61476502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720579115.XU Expired - Fee Related CN207021129U (en) | 2017-05-23 | 2017-05-23 | A kind of porcelain bushing type bushing shell for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207021129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335881A (en) * | 2018-05-07 | 2018-07-27 | 合肥徽鹏贸易有限责任公司 | A kind of bushing shell for transformer being easily installed |
-
2017
- 2017-05-23 CN CN201720579115.XU patent/CN207021129U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335881A (en) * | 2018-05-07 | 2018-07-27 | 合肥徽鹏贸易有限责任公司 | A kind of bushing shell for transformer being easily installed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180216 Termination date: 20180523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |