CN209249262U - A kind of transformer bushing - Google Patents
A kind of transformer bushing Download PDFInfo
- Publication number
- CN209249262U CN209249262U CN201920039224.1U CN201920039224U CN209249262U CN 209249262 U CN209249262 U CN 209249262U CN 201920039224 U CN201920039224 U CN 201920039224U CN 209249262 U CN209249262 U CN 209249262U
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- CN
- China
- Prior art keywords
- conducting rod
- cushion rubber
- porcelain vase
- interior
- terminal plate
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Abstract
It includes conductive component, porcelain vase, interior cushion rubber, outer cushion rubber, interior tight sleeve, holddown spring and clamp nut that the utility model, which provides a kind of transformer bushing, conductive component includes terminal plate, conducting rod and internal wiring component, terminal plate is shaped in one side end of conducting rod, internal wiring component is fixed on one end on conducting rod far from terminal plate, and porcelain vase, interior tight sleeve and holddown spring are successively from top to bottom sheathed on conducting rod.By the way that whole sealing effect is realized in epoxy resin pouring between porcelain vase and conducting rod, and traditional glue bead is replaced to seal according to this, sealing effect is more preferable；So that its sealing performance is guaranteed using double rubber sealings between porcelain vase and cabinet simultaneously, also extend the service life of interior cushion rubber；It is automatically adjusted by holddown spring elastic force, it is ensured that the tightness of interior cushion rubber and outer rubber sealing；Terminal plate and conducting rod are integrally formed and are arranged, it is ensured that connecting portion does not generate heat in the process of running.
Description
Technical field
The utility model relates to transformer lead connection equipment more particularly to a kind of transformer bushings.
Background technique
Bushing shell for transformer is the outgoing line device outside the high and low pressure lead to fuel tank of inside transformer, has defined electricity
Gas intensity and enough mechanical strengths.With the coil of casing connection, voltage class determines the insulation system of casing, casing
The sectional area of conductor part and the structure of connector lug are determined using electric current, this is the use structure of traditional casing,
Operating specification is formulated from the Shen Bian research institute seventies, is used till today always.
The form that traditional sleeve is sealed using glue bead and rubber mat, after the installation is completed, because working outdoors for a long time, temperature
Variation will cause the thermal expansion and contraction of glue bead and rubber mat, so that sealing surface be prevented to cause the hair of oil leakage phenomenon from being fully sealed
It is raw.
In addition, mostly using the modes such as welding to connect since external conductive bar is connected with terminal plate, connection position is flowed through in electric current
Heat can be generated when setting, and be easy to cause constantly increasing for component connecting portion temperature.Line temperature is higher, and oxidation rate is faster,
Route finally is blown, can not operate normally entire electric system.
Utility model content
Problem to be solved in the utility model is to provide a kind of good seal performance, long service life and connecting portion and is running
The transformer bushing of heat is not generated in the process.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of transformer bushing,
In, a kind of transformer bushing include conductive component, porcelain vase, interior cushion rubber, outer cushion rubber, interior tight sleeve, holddown spring and
Clamp nut, the conductive component include terminal plate, conducting rod and internal wiring component, and the terminal plate and conducting rod are integrally formed
Setting, and the terminal plate is located at one side end of conducting rod, the internal wiring component is fixedly installed on conducting rod far from wiring
One end of plate, the porcelain vase, interior tight sleeve and holddown spring are successively from top to bottom sheathed on conducting rod, and the clamp nut is solid
Fixed rotation is set on conducting rod, and the interior cushion rubber and outer cushion rubber are sheathed on the column part of porcelain vase.
Further, the porcelain vase top is set as multistage umbrella revolving body, and lower part is cylindric revolving body, described in multistage
Umbrella revolving body and cylindric revolving body are coaxially arranged, and the multistage umbrella revolving body and cylindric revolution body by integral forming are set
It sets.
Further, the upper surface of the porcelain vase is in contact with the lower surface of terminal plate, the porcelain vase inside and conducting rod
Between be fixedly connected by epoxy resin.
Further, the conducting rod is equipped with screw thread, and the clamp nut rotation is set on conducting rod, the clamp nut
Holddown spring is provided between interior tight sleeve.
Further, the interior cushion rubber and outer cushion rubber coaxial line are sheathed on the cylindric revolution body portion of porcelain vase, and this is interior
The upper surface of cushion rubber and outer cushion rubber is in contact setting with the lower surface of the cylindric revolution body portion of porcelain vase.
Further, the internal wiring component includes two groups of binding nuts and two groups of gaskets, the rotation of binding nut described in two groups
On conducting rod, gasket described in two groups is sheathed on conducting rod, and two groups of gaskets are located between two groups of binding nuts.
Further, the internal wiring component is sleeve, offers multiple groups mounting hole on the sleeve.
The utility model has the advantages and positive effects of:
1, the utility model by by epoxy resin pour between porcelain vase and conducting rod, make its pour into an entirety from
And realize whole sealing effect, and setting replaces traditional glue bead to seal through this structure, avoid the oil leak of glue bead position existing
The generation of elephant.
2, porcelain vase and tank body of oil tank sealing surface use double sealing structure, and an internal interior cushion rubber, outside is arranged again outside one
Cushion rubber, outer cushion rubber long-time sunlight irradiation and ultraviolet light irradiation in the case where coefficient of elasticity and intensity can change the case where
Under, and interior cushion rubber is because there is the protection of outer cushion rubber, and sealing performance does not have any influence, so that extend interior cushion rubber uses the longevity
Life.
3, it is matched in the utility model by holddown spring and clamp nut and interior tight sleeve is compacted to tank body of oil tank
Inner surface, and by the adjusting of holddown spring can make no matter in cushion rubber and outer cushion rubber in the case where expanding with heat and contract with cold how shape
Become, holddown spring can all automatically adjust the stress of interior cushion rubber and outer cushion rubber by elastic force, to ensure interior cushion rubber and outer rubber sealing
Tightness.
4, terminal plate and conducting rod are integrally formed are arranged during fabrication by the utility model, thoroughly avoid the stream in electric current
The heat generated when crossing link position, it is ensured that connecting portion does not generate heat in the process of running, avoids the hair of transformer fault
It is raw.
Detailed description of the invention
Fig. 1 is that internal wiring component is the half-sectional structural representation of the overall structure of the high current mode of connection in the utility model
Figure.
Fig. 2 is that internal wiring component is the half-sectional structural representation of the overall structure of the low current mode of connection in the utility model
Figure.
Fig. 3 is the half section structure diagram of traditional bushing shell for transformer overall structure.
In figure: terminal plate 10, conducting rod 11, internal wiring component 12, binding nut 121, gasket 122, sleeve 123, peace
Dress hole 124, porcelain vase 20, interior cushion rubber 30, outer cushion rubber 31, interior tight sleeve 40, holddown spring 50, clamp nut 51, epoxy resin 60,
Tank body of oil tank 70, glue bead 80, rubber mat 90.
Specific embodiment
In order to better understand the utility model, the utility model is carried out into one with attached drawing combined with specific embodiments below
The description of step.
As shown in Figure 1 to Figure 3, a kind of transformer bushing includes conductive component, porcelain vase 20, interior cushion rubber 30, outer cushion rubber
31, interior tight sleeve 40, holddown spring 50 and clamp nut 51, conductive component include terminal plate 10, conducting rod 11 and internal wiring group
Part 12, terminal plate 10, which is integrally formed by way of hot pressing with conducting rod 11, to be arranged, and terminal plate 10 is located at 11 side of conducting rod
End, internal wiring component 12 are fixedly installed on one end on conducting rod 11 far from terminal plate 10, this porcelain vase 20,40 and of interior tight sleeve
Holddown spring 50 is successively from top to bottom sheathed on conducting rod 11, and the fixed rotation of clamp nut 51 is set on conducting rod 11, interior cushion rubber
30 and outer cushion rubber 31 be sheathed on the column part of porcelain vase 20.
20 top of porcelain vase is set as multistage umbrella revolving body, and lower part is cylindric revolving body, multistage umbrella revolving body and circle
Column revolving body is coaxially arranged, and the multistage umbrella revolving body and the setting of cylindric revolution body by integral forming.Porcelain vase 20 is used for
Conducting rod 11 and tank body of oil tank 70 and the external world are insulated, while also protecting conducting rod 11 not by the erosion of external environment.
The upper surface of porcelain vase 20 is in contact with the lower surface of terminal plate 10, passes through ring between 20 inside of porcelain vase and conducting rod 11
Oxygen resin 60 is fixedly connected.By between the inside of porcelain vase 20 and the conducting rod 11 filling casting epoxy resin 60 make 20 He of porcelain vase
Conducting rod 11 is fixedly connected as an entirety.It is sealed simultaneously also by the replacement of this structure setting is next original by glue bead 80
Form, to solve glue bead 80 because work outdoors for a long time, the variation of temperature will cause expanding with heat and contract with cold for glue bead 80, make
Sealing surface cannot be bonded completely, to lead to the problem of oil leak.
Conducting rod 11 is equipped with screw thread, and the rotation of clamp nut 51 is set on conducting rod 11, clamp nut 51 and interior tight sleeve 40
Between be provided with holddown spring 50.It is matched by holddown spring 50 and clamp nut 51 and interior tight sleeve 40 is compacted to fuel tank
70 inner surface of cabinet, and can make no matter interior cushion rubber 30 and outer cushion rubber 31 are expanding with heat and contract with cold by adjustings of holddown spring 50
In the case of how deformation, holddown spring 50 all can by elastic force automatically adjust in cushion rubber 30 and outer cushion rubber 31 stress, to ensure
The tightness that interior cushion rubber 30 and outer cushion rubber 31 seal, original single rubber mat 90 is replaced by the sealing structure form of double cushion rubbers
The form of sealing can increase the reliability and service life of sealing.
Interior cushion rubber 30 and 31 coaxial line of outer cushion rubber are sheathed on the cylindric revolution body portion of porcelain vase 20, and the interior cushion rubber 30,
The upper surface of outer cushion rubber 31 is in contact setting with the lower surface of the cylindric revolution body portion of porcelain vase 20.Porcelain vase 20 and tank body of oil tank
Sealing surface between 70 is using double rubber sealing structures, and an internal interior cushion rubber 30, outside is arranged an outer cushion rubber 31, outer glue again
The coefficient of elasticity and in the case that intensity can the change in the case where irradiation of long-time sunlight and ultraviolet light irradiation of circle 31, and it is interior
For cushion rubber 30 because there is the protection of outer cushion rubber 31, sealing performance does not have any influence, to extend the use longevity of interior cushion rubber 30
Life.
Internal wiring component 12 includes two groups of binding nuts 121 and two groups of gaskets 122, and two groups of rotations of binding nut 121 are set to and lead
On electric pole 11, two groups of gaskets 122 are sheathed on conducting rod 11, and two groups of gaskets 122 are located between two groups of binding nuts 121.
The connector assembly of this form is used for the wiring of low current casing.
Internal wiring component 12 is sleeve 123, and sleeve 123 is set on conducting rod 11, offers on sleeve 123 more
Group mounting hole 124.By screwing bolt in multiple groups mounting hole 124 sleeve 123 is fixed on conducting rod 11.This form
Connector assembly be used for high current casing wiring.
The specific work process of the utility model is as follows: porcelain vase 20 is set on conducting rod 11 by staff first, and
And make upper surface and the following table of the circular portion for the terminal plate 10 for being welded on 11 one end of conducting rod of the umbrella revolving body of porcelain vase 20
Face is in contact, complete to epoxy resin 60 then to the cavity casting epoxy resin 60 between 20 inside of porcelain vase and conducting rod 11
Then interior cushion rubber 30 and 31 coaxial line of outer cushion rubber are placed on the outer surface of tank body of oil tank 70 by solidification again, then will
Conducting rod 11 and the porcelain vase 20 being fixed on conducting rod 11 are penetrated together inside tank body of oil tank 70, and make interior cushion rubber 30 and outer cushion rubber
31 upper surface is in contact with the lower surface of the cylindric revolution body portion of porcelain vase 20, then successively first by the lower end of conducting rod 11
After be inserted in interior tight sleeve 40 and holddown spring 50, then clamp nut 51 is screwed on conducting rod 11 by being threadedly engaged again,
Holddown spring 50 is compressed by screwing clamp nut 51, then so that interior tight sleeve 40 is pressed on oil by the elastic force of holddown spring 50
70 inner surface of box body, while conducting rod 11 is tensed downwards by the elastic force of holddown spring 50, then again by 11 band of conducting rod
Dynamic porcelain vase 20 is to bottom offset, so that cushion rubber 30 and outer cushion rubber 31 realize sealing in compressing.Finally further according to the electric current of connecting lead wire
Size selects suitable internal wiring component 12 to be attached.
The embodiments of the present invention are described in detail above, but content is only the preferable implementation of the utility model
Example, should not be considered as limiting the scope of the present invention.It is all according to equivalent change made by the scope of the utility model with
Improve etc., it shall still fall within the scope of this patent.
Claims (7)
1. a kind of transformer bushing, it is characterised in that: a kind of transformer bushing includes conductive component, porcelain vase
(20), interior cushion rubber (30), outer cushion rubber (31), interior tight sleeve (40), holddown spring (50) and clamp nut (51), the conduction group
Part includes terminal plate (10), conducting rod (11) and internal wiring component (12), the terminal plate (10) and conducting rod (11) one at
Type setting, and the terminal plate (10) is located at (11) one side end of conducting rod, the internal wiring component (12), which is fixedly installed on, leads
On electric pole (11) far from terminal plate (10) one end, the porcelain vase (20), interior tight sleeve (40) and holddown spring (50) successively by
It is sheathed under on conducting rod (11), the fixed rotation of the clamp nut (51) is set on conducting rod (11), the interior cushion rubber
(30) and outer cushion rubber (31) is sheathed on the column parts of porcelain vase (20).
2. a kind of transformer bushing according to claim 1, it is characterised in that: porcelain vase (20) top is set as
Multistage umbrella revolving body, lower part are cylindric revolving body, and the multistage umbrella revolving body and cylindric revolving body are coaxially arranged,
And the multistage umbrella revolving body and cylindric revolution body by integral forming are arranged.
3. a kind of transformer bushing according to claim 1, it is characterised in that: the upper surface of the porcelain vase (20) with
The lower surface of terminal plate (10) is in contact, and the porcelain vase (20) is internal fixed by epoxy resin (60) between conducting rod (11)
Connection.
4. a kind of transformer bushing according to claim 1, it is characterised in that: the conducting rod (11) is equipped with spiral shell
Line, clamp nut (51) rotation are set on conducting rod (11), are arranged between the clamp nut (51) and interior tight sleeve (40)
There are holddown spring (50).
5. a kind of transformer bushing according to claim 1, it is characterised in that: the interior cushion rubber (30) and outer cushion rubber
(31) coaxial line is sheathed on the cylindric revolution body portion of porcelain vase (20), and the upper surface of the interior cushion rubber (30) and outer cushion rubber (31)
Be in contact setting with the lower surface of the cylindric revolution body portion of porcelain vase (20).
6. a kind of transformer bushing according to claim 1, it is characterised in that: the internal wiring component (12) includes
Two groups of binding nuts (121) and two groups of gaskets (122), binding nut described in two groups (121) rotation are set on conducting rod (11), and two groups
The gasket (122) is sheathed on conducting rod (11), and two groups of gaskets (122) are located between two groups of binding nuts (121).
7. a kind of transformer bushing according to claim 1, it is characterised in that: the internal wiring component (12) is to connect
Line set (123) offers multiple groups mounting hole (124) on the sleeve (123).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039224.1U CN209249262U (en) | 2019-01-10 | 2019-01-10 | A kind of transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039224.1U CN209249262U (en) | 2019-01-10 | 2019-01-10 | A kind of transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209249262U true CN209249262U (en) | 2019-08-13 |
Family
ID=67536200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920039224.1U Active CN209249262U (en) | 2019-01-10 | 2019-01-10 | A kind of transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209249262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545524A (en) * | 2019-01-10 | 2019-03-29 | 天津兴达电气科技有限公司 | A kind of transformer bushing |
| CN110646651A (en) * | 2019-09-27 | 2020-01-03 | 国网山东省电力公司昌乐县供电公司 | Electric power high voltage metering box |
-
2019
- 2019-01-10 CN CN201920039224.1U patent/CN209249262U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545524A (en) * | 2019-01-10 | 2019-03-29 | 天津兴达电气科技有限公司 | A kind of transformer bushing |
| CN109545524B (en) * | 2019-01-10 | 2023-12-26 | 天津兴达电气科技有限公司 | Novel transformer sleeve |
| CN110646651A (en) * | 2019-09-27 | 2020-01-03 | 国网山东省电力公司昌乐县供电公司 | Electric power high voltage metering box |
| CN110646651B (en) * | 2019-09-27 | 2022-02-15 | 国网山东省电力公司昌乐县供电公司 | Electric power high voltage metering box |
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| GR01 | Patent grant |