CN108364788A - A kind of power capacitor and its outlet casing tube lower flange sealing structure - Google Patents
A kind of power capacitor and its outlet casing tube lower flange sealing structure Download PDFInfo
- Publication number
- CN108364788A CN108364788A CN201810123857.0A CN201810123857A CN108364788A CN 108364788 A CN108364788 A CN 108364788A CN 201810123857 A CN201810123857 A CN 201810123857A CN 108364788 A CN108364788 A CN 108364788A
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- Prior art keywords
- insulator
- lower flange
- sealing structure
- casing tube
- gasket seal
- Prior art date
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- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 239000003990 capacitor Substances 0.000 title claims abstract description 34
- 239000012212 insulator Substances 0.000 claims abstract description 187
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims description 2
- 230000003467 diminishing effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 18
- 239000004020 conductor Substances 0.000 description 13
- 239000010949 copper Substances 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 description 1
- 229920005560 fluorosilicone rubber Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/236—Terminals leading through the housing, i.e. lead-through
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/26—Lead-in insulators; Lead-through insulators
- H01B17/30—Sealing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Insulators (AREA)
Abstract
A kind of power capacitor of present invention offer and its outlet casing tube lower flange sealing structure, outlet casing tube lower flange sealing structure includes insulator insulator and lower flange, it further include gasket seal, the lower end of the insulator insulator is equipped with first surface, the lower flange is equipped with the second curved surface, the lower flange is coated and fixed in the lower end of the insulator insulator, the first surface is connected with second curved surface, the gasket seal is between the first surface and second curved surface, the medial surface of the gasket seal matches with the first surface, the lateral surface of the gasket seal matches with second curved surface, will be sealed between the insulator insulator and the lower flange.So set, solving the lower flange and insulator insulator poor sealing of power capacitor, lead to insulating oil leakage and the caducous problem of lower flange.
Description
Technical field
The present invention relates to T ＆ D Technology fields, more specifically under a kind of power capacitor and its outlet casing tube
Flange sealing structure.
Background technology
In the power system, power capacitor is a kind of to safeguard that power grid is normal, important power equipment of Effec-tive Function.Electric power
Capacitor can play the role of providing cospectra component present in reactive-load compensation and filtering circuit system for electric system.
Power capacitor includes insulator insulator, copper stranded conductor and upper lower flange, and insulator insulation subcenter is copper stranded conductor, insulator
Insulator lower end is connect with lower flange, and insulating oil is filled in the box shell below lower flange, and the lower end of copper stranded conductor is stretched into insulating oil,
Poor sealing between insulator insulator and lower flange in the prior art, electric current flow through or other heat conditions under oil can occur
The case where leakage, and under certain electric current or voltge surge active force, lower flange often falls off, and gives electric power electricity
The operation of container brings hidden danger.
Therefore, poor sealing between the lower flange of power capacitor and insulator insulator how is solved, insulating oil is caused to ooze
Leakage and the caducous problem of lower flange, become this field staff important technological problems to be solved.
Invention content
The purpose of the present invention is to provide a kind of outlet casing tube lower flange sealing structures of power capacitor, solve electric power electricity
Poor sealing between the lower flange and insulator insulator of container, leads to insulating oil leakage and the caducous problem of lower flange.
The present invention provides a kind of outlet casing tube lower flange sealing structures of power capacitor, including insulator insulator is under
Flange further includes gasket seal, and the lower end of the insulator insulator is equipped with first surface, and the lower flange is equipped with the second curved surface,
The lower flange is coated and fixed in the lower end of the insulator insulator, and the first surface is connected with second curved surface, institute
Gasket seal is stated between the first surface and second curved surface, the medial surface of the gasket seal is bent with described first
Face matches, and the lateral surface of the gasket seal matches with second curved surface, by the insulator insulator with it is described under
It is sealed between flange.
Preferably, insulator insulator lower end is equipped with boss, and the bottom surface of the boss is the first surface.
Preferably, the first surface be taper surface, the taper surface be along the insulator insulator axially downwardly by
Tapered small taper surface.
Preferably, the angle between the taper surface and horizontal plane is between 25 °~30 °.
Preferably, the angle between the taper surface and horizontal plane is 27 °.
Preferably, the medial surface of the gasket seal is third curved surface, and the third curved surface is tapered, and the taper is along institute
The angle being axially downwardly gradually reduced between horizontal plane for stating gasket seal is 27 °.
Preferably, the lateral surface of the gasket seal is the 4th curved surface, the 4th curved surface and second curve form
It is identical, fit.
Preferably, the material of the gasket seal is corrosion-resistant high polymer.
The present invention also provides a kind of power capacitors, are equipped with outlet casing tube lower flange sealing structure, the outlet casing tube
Lower flange sealing structure is the outlet casing tube lower flange sealing structure described in any one as above.
The present invention provides a kind of processing method of outlet casing tube lower flange sealing structure, including：
Annealing heat-treats are carried out to the lower flange；
The surface of the lower flange is subjected to steel ball grinding, polishing；
The gasket seal and the lower flange are sequentially arranged to the lower end of the insulator insulator, and described first is bent
Face is fitted closely with the third curved surface, second curved surface is fitted closely with the 4th curved surface；
By the lower flange roll riveting in the lower end of the insulator insulator.
In technical solution provided by the invention, the outlet casing tube lower flange sealing structure of power capacitor includes insulator insulation
Son, lower flange and gasket seal.The lower end of insulator insulator is equipped with first surface, and lower flange is equipped with the second curved surface.Lower flange packet
The lower end for being fixed on insulator insulator is covered, when lower flange is installed with the cooperation of insulator insulator, first surface is connected with the second curved surface
It connects.Gasket seal is for the sealing between lower flange and the lower end of insulator insulator, between first surface and the second curved surface
Position.The medial surface of gasket seal matches with first surface, and lateral surface matches with the second curved surface.Medial surface and the first song
Face paste is closed, lateral surface and the second application of a surface realize that gasket seal will seal between the lower end and lower flange of insulator insulator.Such as
This setting, the lower end of lower flange and gasket seal, gasket seal and insulator insulator fit closely, and gasket seal is solid by compression
It is scheduled between lower flange and the lower end of insulator insulator, makes the leakproofness between the lower flange of power capacitor and insulator insulator
More preferably, solve the problems, such as that lower flange is easy to fall off and insulating oil leakage.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the installation diagram of insulator insulator, lower flange and gasket seal in the embodiment of the present invention；
Fig. 2 is the structure chart of insulator insulator in the embodiment of the present invention；
Fig. 3 is the vertical view of gasket seal in the embodiment of the present invention；
Fig. 4 is the structure chart of the cross section of gasket seal in the embodiment of the present invention；
Fig. 5 is the vertical view of lower flange in the embodiment of the present invention；
Fig. 6 is the front view of a part for lower flange in the embodiment of the present invention.
In Fig. 1-Fig. 6：
1- insulator insulators, 2- lower flanges, 3- gasket seals, 4- boss, 5- first surfaces, the second curved surfaces of 6-, the convex edges 7-,
8- copper stranded conductors, 9- third curved surfaces, the 4th curved surfaces of 10-.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art obtained institute without making creative work
There is other embodiment, belongs to the range that the present invention is protected.
Present embodiment is designed to provide a kind of outlet casing tube lower flange sealing structure of power capacitor, solution
Certainly poor sealing between the lower flange of power capacitor and insulator insulator leads to insulating oil leakage and lower flange is caducous asks
Topic.
Hereinafter, being illustrated to embodiment with reference to attached drawing.In addition, embodiments illustrated below is not to recorded in claim
Invention content rise any restriction effect.In addition, the full content of the composition represented by following example is not limited to as right
It is required that necessary to the solution of recorded invention.
Referring to FIG. 1, present embodiment provides a kind of outlet casing tube lower flange sealing structure of power capacitor,
Outlet casing tube lower flange sealing structure includes insulator insulator 1, lower flange 2 and gasket seal 3.The lower end of insulator insulator 1 is set
There are first surface 5, lower flange 2 to be equipped with the second curved surface 6.Lower flange 2 is coated and fixed in the lower end of insulator insulator 1, lower flange 2 with
When the cooperation installation of insulator insulator 1, first surface 5 is connected with the second curved surface 6.Gasket seal 3 is exhausted for lower flange 2 and insulator
Sealing between edge 1, the position between first surface 5 and the second curved surface 6.The medial surface of gasket seal 3 and the first song
Face 5 matches, and lateral surface matches with the second curved surface 6.Insulator insulator 1, lower flange 2 and 3 three of gasket seal coordinate installation
When, the medial surface of gasket seal 3 is bonded with first surface 5, lateral surface is bonded with the second curved surface 6 and realizes gasket seal 3 by insulator
It is sealed between the lower end and lower flange 2 of insulator 1.
So set, lower flange 2 is fitted closely with gasket seal 3, gasket seal 3 and the lower end of insulator insulator 1, it is close
Gasket 3 is fixed on by compression between lower flange 2 and the lower end of insulator insulator 1, and the lower flange 2 and insulator of power capacitor are made
Better tightness between insulator 1 solves the problems, such as that insulating oil leakage and lower flange 2 are caducous.
It please refers to Fig.2 and Fig. 4, in the present embodiment, the lower end of insulator insulator 1 is equipped with boss 4, and the bottom surface of boss 4 is
First surface 5.Gasket seal 3 is connected with the boss 4 of insulator insulator 1, the bottom surface of the medial surface and boss 4 of gasket seal 3
It fits.In the preferred embodiment of the present embodiment, first surface 5 be taper surface, taper surface along insulator insulator 1 axially downwardly
It is gradually reduced.Certainly, in other embodiments, the other shapes such as first surface 5 or planar annular.
In the preferred embodiment of the present embodiment, the angle between taper surface and horizontal plane is between 25 °~30 °.It is preferred that
Ground, the angle between taper surface and horizontal plane are 27 °.
It should be noted that insulator insulator 1 is made of high-strength electromagnetic material, high-strength electromagnetic material is ceramic products, machine
Tool intensity is good, hardness is high, and has excellent insulation performance.Inventor considers the factor of various aspects, by taper surface and water
Angle between plane is determined as 27 °, and the insulator insulator 1 is made to have excellent electric property, for example, creepage distance and electrical
Safety net distance is big.Wiring guide rod is terminated on insulator insulator 1, wiring guide rod is connected with copper stranded conductor 8, and copper stranded conductor 8 penetrates
In the central through hole of insulator insulator 1, and the one end penetrated is pierced by from the lower end of insulator insulator 1, and creepage distance is along insulator
The insulating surface of the insulator 1 wiring guide rod measured and copper stranded conductor 8 are between the part that insulator insulator 1 is pierced by, different
Under service condition, since wiring guide rod and the insulating materials around the traversing through end of copper stranded conductor 8 are electrically polarized, the insulating materials is caused to be in
The live zone of existing electrification phenomenon.Electrical safety clear distance is that the both ends live part of insulator insulator 1 will not to external ground object
The safe distance of electric discharge or induction occurs.The creepage distance and electrical safety clear distance of the insulator insulator 1 are larger, table
Reveal excellent electric conductivity.
In the present embodiment, with reference to figure 3- Fig. 4, the inner surface of gasket seal 3 is third curved surface 9, and third curved surface 9 is also in cone
Shape, taper are axially downwardly gradually reduced along gasket seal, and the angle between horizontal plane is 27 °.Gasket seal 3 and insulator are exhausted
When the lower end cooperation installation of edge 1, tapered third curved surface 9 matches with first surface 5, and shape is identical, is fitted tightly over
Together.So set, seamless between gasket seal 3 and the lower end of insulator insulator 1, gasket seal 3 and insulator insulator 1 it
Between sealing effect it is more preferable.
In the preferred embodiment of the present embodiment, the lateral surface of gasket seal 3 is the 4th curved surface 10, the 4th curved surface 10 and second
Curved surface 6 matches, and shape is identical, and when cooperation is installed, the lateral surface of gasket seal 3 fits together with the second curved surface 6.So set
It sets, seamless between gasket seal 3 and lower flange 2, sealing performance is more preferable, and the insulating oil below lower flange 2 in box shell is avoided to go out
The case where now leaking.
In order to improve the weatherability of gasket seal 3, after avoiding power capacitor work a period of time, there is gasket seal 3
Aging or the phenomenon that be corroded, in the preferred embodiment of the present embodiment, is set as corrosion resistant high poly- by the material of gasket seal 3
Object, for example, fluorine silicone rubber, polysulfide rubber, nitrile rubber etc..Filled with insulating oil in box shell below lower flange 2, circuit system exists
When work or when carrying power capacitor, gasket seal 3 is inevitably contacted with insulating oil, some high polymers with absolutely
The case where contact of edge oil will appear chemical bond rupture, soften, lose the effect of sealing.Corrosion resistant high polymer, for example, fluorine silicon rubber
Glue, the characteristic with oil resistant, and the soda acid of resistance to low concentration, are suitable for use on power capacitor, make gasket seal 3 and be used.
In the present embodiment, as shown in Fig. 2, insulator insulator 1 is equipped with multiple convex edges 7, convex edge 7 is along insulator insulator 1
Axial setting, and be uniformly distributed in an axial direction, radial protrusion of the convex edge 7 along insulator insulator 1.So set, porcelain can be increased
The creepage distance of insulator 1 is covered, the electric property of insulator insulator 1 is improved.
In the preferred embodiment of the present embodiment, such as Fig. 5-Fig. 6, lower flange 2 is equipped with the second curved surface 6, the second curved surface 6 with it is close
The lateral surface of gasket 3 matches, it is ensured that good seal between gasket seal 3 and lower flange 2.The material of lower flange 2 is
SUS304 stainless steels (national standard 1Cr18N i9), SUS304 stainless steels are widely used in industry, furniture decoration industry and food medical treatment
Industry has good corrosion resistance, heat resistance, and low temperature intensity and mechanical property are preferable, and the hot-workabilities such as punching press, bending are good,
It is not in heat treatment hardening phenomenon.After the shapes and sizes of the requirement of lower flange 2 are made of SUS304 stainless steels, annealing heat is carried out
Processing, the main purpose for carrying out annealing heat-treats are to increase the ductility and toughness of lower flange 2.The surface of lower flange 2 uses steel
It is polished after pearl grinding, keeps the surface-brightening of lower flange 2 beautiful, non-corrosive.
Further, it is the structure of lower flange 2 in Fig. 5, for the capacitor cover plate of monoblock type outlet casing tube lower end, including
The structure of two lower flanges 2, for arranged in parallel on capacitor cover plate, each lower flange 2 is all connected with an insulator insulator above
1.Preferably, annealing heat-treats are integrally carried out to capacitor cover plate, then is polished after being ground with steel ball to surface.Capacitor cover plate is set
It is set to oblong-shaped, four circular protrusions are additionally provided on capacitor cover plate, rectangular four angles are located at, under two
It also is provided with protrusion between flange 2.So set, these protrusions optimize the mechanical performance of capacitor cover plate, make capacitor cover plate
Intensity and rigidity strengthened.
Insulator insulator 1 is hollow-core construction, and one end of copper stranded conductor 8 is inserted by the upper end of insulator insulator 1, runs through entire porcelain
Insulator 1 is covered, is pierced by by the lower end of insulator insulator 1, then the lower flange 2 for penetrating gasket seal 3 successively and handling well, first is bent
Face is fitted closely with third curved surface, the second curved surface is fitted closely with the 4th curved surface, and lower flange 2 and the lower end of insulator insulator 1 are matched
It gets togather, by three station rolling riveters by 2 roll riveting of lower flange in the lower end of insulator insulator 1.Copper stranded conductor 8 is pierced by by lower flange 2
End is inserted into the insulating oil below lower flange 2 in box shell.Preferably, tin plating processing is carried out on the surface of copper stranded conductor 8, to reinforce
The electric conductivity of copper stranded conductor 8.Keep the connection between lower flange 2 and insulator insulator 1 more secured using the processing technology of roll riveting.
After lower flange 2 roll riveting to the lower end of insulator insulator 1, the sealing performance of gasket seal 3 is tested, is ensured
The phenomenon that being not in leakage insulating oil between insulator insulator 1 and lower flange 2, then carry out the machinery of tension and flexural strength
Strength test, it is ensured that workpiece disclosure satisfy that defined requirement.
Content combines above-mentioned each embodiment to carry out the outlet casing tube lower flange sealing structure of this power capacitor below
It illustrates, as shown in figs 1 to 6, outlet casing tube lower flange sealing structure includes insulator insulator 1, lower flange 2 and gasket
Piece 3, lower flange 2 are coated and fixed in the lower end of insulator insulator 1, and gasket seal 3 is located at lower end and the lower flange of insulator insulator 1
Between 2, for the sealing between the lower end and lower flange 2 of insulator insulator 1.The lower end of insulator insulator 1 is equipped with boss 4, convex
The lower surface of platform 4 is first surface 5, and first surface 5 is taper surface, axially downwardly gradually contracting of the taper surface along insulator insulator 1
Small, the angle between taper surface and horizontal plane is 27 °, and the medial surface of gasket seal 3 is tapered, along gasket seal 3 it is axial to
Under be gradually reduced, the angle of taper and horizontal plane is also 27 °, and first surface 5 matches with the medial surface of gasket seal 3.Laxative remedy
Orchid 2 is equipped with the second curved surface 6, and the second curved surface 6 is identical as the lateral surface shape of gasket seal 3, cooperation installation.Gasket seal 3 uses
Corrosion-resistant high polymer is made.Multiple convex edges 7 are evenly distributed in the axial direction of insulator insulator 1, convex edge 7 is along insulator insulator 1
Radial protrusion.
Insulator insulator 1 is hollow-core construction, and one end of the copper stranded conductor 8 of electroplating surfaces with tin processing is inserted by 1 upper end of insulator insulator
Enter, lower end is pierced by, and stretch into after gasket seal 3 and lower flange 2 in insulating oil of the lower flange 2 below in box shell.Gasket
After piece 3 is worked good with the lower end of insulator insulator 1, lower flange 2,2 roll riveting of lower flange is fixed using roll riveting technique, gasket seal
3 compressions are fixed between the lower end of insulator insulator 1 and lower flange 2, realize the sealing between insulator insulator 1 and lower flange 2.
So set, gasket seal 3 is fitted between the lower end of insulator insulator 1 and lower flange 2, realize that insulator is exhausted
Sealing between edge 1 and lower flange 2 solves the lower flange 2 and 1 poor sealing of insulator insulator of power capacitor, causes
2 caducous problem of insulating oil leakage and lower flange.
The present embodiment additionally provides a kind of power capacitor, is equipped with outlet casing tube lower flange sealing structure, the outlet casing tube
Lower flange sealing structure is the outlet casing tube lower flange sealing structure described in embodiment as above.So set, power capacitor
It when working in the power system, solves the problems, such as poor sealing between lower flange 2 and insulator insulator 1, avoids the occurrence of insulation
The case where oil seepage or lower flange 2 fall off.The derivation of the advantageous effect and above-mentioned outlet casing tube lower flange sealing structure
The derivation for the advantageous effect brought is substantially similar, therefore repeats no more herein.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to same or analogous content in other embodiment.Multiple schemes provided by the invention include
The basic scheme of itself does not condition each other independently of each other, but it can also be combined with each other in the absence of conflict, reach
It is realized jointly to multiple effects.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in should all be covered those skilled in the art
Within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of outlet casing tube lower flange sealing structure of power capacitor, including insulator insulator (1) and lower flange (2),
It is characterized in that, further includes gasket seal (3), the lower end of the insulator insulator (1) is equipped with first surface (5), the lower flange
(2) it is equipped with the second curved surface (6), the lower flange (2) is coated and fixed bent in the lower end of the insulator insulator (1), described first
Face (5) is connected with second curved surface (6), and the gasket seal (3) is located at the first surface (5) and second curved surface
(6) between, the medial surface of the gasket seal (3) matches with the first surface (5), the outside of the gasket seal (3)
Face matches with second curved surface (6), will be sealed between the insulator insulator (1) and the lower flange (2).
2. outlet casing tube lower flange sealing structure as described in claim 1, which is characterized in that under the insulator insulator (1)
End is equipped with boss (4), and the bottom surface of the boss (4) is the first surface (5).
3. outlet casing tube lower flange sealing structure as claimed in claim 2, which is characterized in that the first surface (5) is cone
Shape face, the taper surface are the axially downwardly diminishing taper surface along the insulator insulator (1).
4. outlet casing tube lower flange sealing structure as claimed in claim 3, which is characterized in that the taper surface and horizontal plane it
Between angle between 25 °~30 °.
5. outlet casing tube lower flange sealing structure as claimed in claim 4, which is characterized in that the taper surface and horizontal plane it
Between angle be 27 °.
6. outlet casing tube lower flange sealing structure as claimed in claim 5, which is characterized in that the gasket seal (3) it is interior
Side be third curved surface (9), the third curved surface (9) is tapered, the taper along the gasket seal (3) axially downwardly by
Tapered small and between horizontal plane angle is 27 °.
7. outlet casing tube lower flange sealing structure as claimed in claim 6, which is characterized in that outside the gasket seal (3)
Side is the 4th curved surface (10), and the 4th curved surface (10) is identical as the second curved surface (6) shape and fits.
8. outlet casing tube lower flange sealing structure as described in claim 1, which is characterized in that the material of the gasket seal (3)
Matter is corrosion-resistant high polymer.
9. a kind of power capacitor, which is characterized in that including outlet casing tube lower flange sealing structure, the outlet casing tube lower flange
Sealing structure is the outlet casing tube lower flange sealing structure as described in claim 1~8 any one.
10. a kind of processing method of outlet casing tube lower flange sealing structure, the outlet casing tube lower flange sealing structure is as weighed
Profit requires the outlet casing tube lower flange sealing structure described in 7, which is characterized in that including：
Annealing heat-treats are carried out to the lower flange (2)；
The surface of the lower flange (2) is subjected to steel ball grinding, polishing；
The gasket seal (3) and the lower flange (2) are sequentially arranged to the lower end of the insulator insulator (1), and described
First surface (5) is fitted closely with the third curved surface (9), second curved surface (6) is closely pasted with the 4th curved surface (10)
It closes；
By the lower flange (2) roll riveting in the lower end of the insulator insulator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123857.0A CN108364788A (en) | 2018-02-07 | 2018-02-07 | A kind of power capacitor and its outlet casing tube lower flange sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123857.0A CN108364788A (en) | 2018-02-07 | 2018-02-07 | A kind of power capacitor and its outlet casing tube lower flange sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108364788A true CN108364788A (en) | 2018-08-03 |
Family
ID=63005110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810123857.0A Pending CN108364788A (en) | 2018-02-07 | 2018-02-07 | A kind of power capacitor and its outlet casing tube lower flange sealing structure |
Country Status (1)
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| CN (1) | CN108364788A (en) |
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| CN205278636U (en) * | 2016-01-08 | 2016-06-01 | 海南同德管业有限公司 | Modified double -walled bellows sealing circle |
| CN207834118U (en) * | 2018-02-07 | 2018-09-07 | 陕西智容电气有限公司 | A kind of power capacitor and its outlet casing tube lower flange sealing structure |
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