CN108963954A - Seal assembly and oil-filled cable terminal - Google Patents
Seal assembly and oil-filled cable terminal Download PDFInfo
- Publication number
- CN108963954A CN108963954A CN201810996747.5A CN201810996747A CN108963954A CN 108963954 A CN108963954 A CN 108963954A CN 201810996747 A CN201810996747 A CN 201810996747A CN 108963954 A CN108963954 A CN 108963954A
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- China
- Prior art keywords
- oil
- cable terminal
- filled cable
- seal assembly
- filled
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/22—Cable terminations
- H02G15/23—Cable-end sealings
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- Connector Housings Or Holding Contact Members (AREA)
- Gas Or Oil Filled Cable Accessories (AREA)
Abstract
The present invention discloses a kind of seal assembly of oil-filled cable terminal, comprising: metal tube；First elastic sealing element is molded on the outer peripheral surface of the metal tube, for realizing the axial seal of the oil-filled cable terminal；It with the second elastic sealing element, is molded on the end of the metal tube, for realizing the radial seal of the oil-filled cable terminal.In the present invention, the first elastic sealing element of seal assembly and the second elastic sealing element can realize the axial seal and radial seal of oil-filled cable terminal respectively, improve the sealing performance of oil-filled cable terminal.In addition, the metal tube of seal assembly has good conductive property, the ground connection performance of cable is improved.
Description
Technical field
The present invention relates to a kind of seal assembly of oil-filled cable terminal and the oil-filled cable including the seal assembly is whole
End.
Background technique
High pressure filling type power cable terminal product is currently the major product form of high voltage power cable terminal.Especially
Almost all of outdoor cable terminal is oil-filled cable end product in extra-high-tension cable end product system.But
Since oil-filled cable terminal needs to be filled with insulating oil wherein, it is needed in the bottom of oil-filled cable end product
There are axial seal and radial seal.Due to the wriggling of cable in the process of running, cause the radial seal of cable surface very tired
Easily there is the oil leakage phenomenon of oil-filled terminal product in difficulty.In addition, being reliably electrically connected to the design of hermetic unit must also examine
Consider.Since the sealing material of hermetic unit is generally nonmetallic elastic material.It therefore, may in the case where imperfect earth
It will cause the damage of cable or the failure of cable system.
Summary of the invention
The purpose of the present invention aims to solve the problem that at least one aspect of the above-mentioned problems in the prior art and defect.
According to an aspect of the present invention, a kind of seal assembly of oil-filled cable terminal is provided, comprising: metal tube；The
One elastic sealing element is molded on the outer peripheral surface of the metal tube, for realizing the axial seal of the oil-filled cable terminal；
It with the second elastic sealing element, is molded on the end of the metal tube, the radial direction for realizing the oil-filled cable terminal is close
Envelope.
The embodiment of an exemplary according to the present invention, first elastic sealing element are suitable for being compressed axially being used for
On the bottom plate for installing the oil-filled cable terminal, to realize the axial direction between the oil-filled cable terminal and the bottom plate
Sealing.
The embodiment of another exemplary according to the present invention, second elastic sealing element and protrudes into filling type electricity
The cable of cable terminal is interference fitted, to realize the radial seal between the oil-filled cable terminal and the cable.
The embodiment of another exemplary according to the present invention, first elastic sealing element include base portion, edge part and
Connect the interconnecting piece of the base portion and the edge part；The base portion is directly connectcted on the outer peripheral surface of the metal tube, described
Edge part is protruded towards two sides in the axial direction relative to the interconnecting piece, and the edge part is suitable for being compressed axially in the bottom plate
On, to realize the axial seal.
The embodiment of another exemplary according to the present invention, the edge part is relative to interconnecting piece court in the axial direction
1~5mm is protruded respectively in two sides.
The embodiment of another exemplary according to the present invention, the edge part is relative to interconnecting piece court in the axial direction
1mm, 2mm, 3mm, 4mm or 5mm are protruded respectively in two sides.
The cross section of the embodiment of another exemplary according to the present invention, the edge part of first elastic sealing element is big
It causes rounded；The cross section of the base portion of first elastic sealing element is substantially trapezoidal, and gradually tapers up outward radially；
The cross section of the interconnecting piece of first elastic sealing element is generally rectangular shaped.
The embodiment of another exemplary according to the present invention, second elastic sealing element have the processing for allowing cable
The through-hole that the end crossed passes through, the internal diameter of the through-hole is less than the outer diameter of the end of the cable, so that the end of the cable
It is interference fitted with the through-hole, to realize the radial seal.
The internal diameter of the embodiment of another exemplary according to the present invention, the through-hole of second elastic sealing element is described
The 90%~96% of the outer diameter of the end of cable.
The embodiment of another exemplary according to the present invention, the internal diameter of the metal tube are greater than the end of the cable
Outer diameter；And the gap between the outer surface of the end of the inner surface of the metal tube and the cable is in the range of 5~10mm
Within.
The embodiment of another exemplary according to the present invention, the axis of the metal tube and second elastic sealing element
Through-hole axis be overlapped, with guarantee be centrally positioned at institute across the end of the metal tube and the cable of the through-hole
It states in metal tube.
The embodiment of another exemplary according to the present invention, first elastic sealing element and second elastic packing
Part is made of identical Oil resistant elastomers or different Oil resistant elastomers.
The embodiment of another exemplary according to the present invention, the metal tube are made of nonmagnetic conductive metal material.
The embodiment of another exemplary according to the present invention, the metal tube are made of copper or aluminium.
According to an aspect of the present invention, a kind of oil-filled cable terminal, including aforementioned seal component are provided.
The embodiment of an exemplary according to the present invention, the oil-filled cable terminal further include support plate and tail pipe,
The support plate and tail pipe are set on the cables, suitable for being fixed to the bottom plate for installing the oil-filled cable terminal
Side on；When the support plate and tail pipe are fixed on the bottom plate, the support plate is by the of the seal assembly
One elastic sealing element is compressed in the groove of the bottom plate, to realize between the oil-filled cable terminal and the bottom plate
Axial seal.
The embodiment of another exemplary according to the present invention, the oil-filled cable terminal further includes insulator, described
Insulator is set on the cables, suitable for being fixed on the other side of the bottom plate, the insulator and the bottom plate it
Between using O-ring seals seal.
The embodiment of another exemplary according to the present invention, the oil-filled cable terminal further include the first semiconductive
Band, the first metal mask tape and the first insulating tape, first semi-conductive tape are wrapped in metal tube and the institute of the seal assembly
It states on the protective metal shell of cable, first metal mask tape is wrapped on first semi-conductive tape, first insulating tape
First metallic shield is wrapped in take.
The embodiment of another exemplary according to the present invention, the oil-filled cable terminal further include the second semiconductive
Band, the second metal mask tape and the second insulating tape, second semi-conductive tape are wrapped in the metal tube and the of the seal assembly
On the outer semiconducting layer of two elastic sealing elements and the cable, second metal mask tape is wrapped in second semiconductive
It takes, second insulating tape is wrapped in second metallic shield and takes.
The embodiment of another exemplary according to the present invention, the oil-filled cable terminal further include the first heat-shrink tube and
Second heat-shrink tube, the first heat-shrink tube pyrocondensation is on the tail pipe and the cable, and the second heat-shrink tube pyrocondensation is described
On second insulating tape.
The embodiment of another exemplary according to the present invention, the oil-filled cable terminal further include waterproof sealing band,
The waterproof sealing band is wrapped on first insulating tape.
The embodiment of another exemplary according to the present invention, the oil-filled cable terminal further include being located at the metal
Copper braid over braid between sheath and first metal mask tape, one end of the copper braid over braid and first metal mask tape
It is tightened in the first annular groove of the metal tube of the seal assembly with copper wire, the other end is tightened with copper wire in the electricity
On the protective metal shell of cable；
One end and the other end of the copper braid over braid and first metal mask tape are welded separately after being tightened
Onto the metal tube and the protective metal shell.
The other end of the embodiment of another exemplary according to the present invention, second metal mask tape is pricked with copper wire
Tightly in the second ring-shaped groove of the metal tube of the seal assembly；The other end of second metal mask tape is being tightened it
After be soldered on the metal tube.
The embodiment of another exemplary according to the present invention, the oil-filled cable terminal further include being located at the metal
One end of copper braid over braid between sheath and first metal mask tape, the copper braid over braid is soldered to the seal assembly
Metal tube on, the other end is soldered on the protective metal shell of the cable.
The embodiment of another exemplary according to the present invention, the bottom plate and the tail pipe are suitable for connecting with ground terminal
It connects, for the oil-filled cable terminal to be grounded.
In the embodiment of aforementioned each exemplary according to the present invention, the first elastic sealing element of seal assembly and second
Elastic sealing element can realize the axial seal and radial seal of oil-filled cable terminal respectively, improve oil-filled cable terminal
Sealing performance.In addition, the metal tube of seal assembly can improve the convenience and reliability of ground connection, the ground connection for improving cable is reliable
Property.
By the description made for the present invention of below with reference to attached drawing, other objects and advantages of the present invention will be aobvious and easy
See, and can help that complete understanding of the invention will be obtained.
Detailed description of the invention
Fig. 1 shows the schematic diagram of seal assembly according to an embodiment of the invention；
Fig. 2 shows the schematic diagram of oil-filled cable terminal according to an embodiment of the invention.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.Illustrating
In book, the same or similar drawing reference numeral indicates the same or similar component.Following reference attached drawings are to embodiment of the present invention
Illustrate to be intended to explain present general inventive concept of the invention, and is not construed as to a kind of limitation of the invention.
In addition, in the following detailed description, to elaborate many concrete details to provide to present disclosure convenient for explaining
The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments without these specific details can also be with
It is carried out.In other cases, well known construction and device is diagrammatically embodied to simplify attached drawing.
General technical design according to the present invention, provides a kind of seal assembly of oil-filled cable terminal, comprising: gold
Belong to pipe；First elastic sealing element is molded on the outer peripheral surface of the metal tube, for realizing the axis of the oil-filled cable terminal
To sealing；It with the second elastic sealing element, is molded on the end of the metal tube, for realizing the oil-filled cable terminal
Radial seal.
Fig. 1 shows the schematic diagram of seal assembly 101 according to an embodiment of the invention；Fig. 2 is shown according to the present invention
One embodiment oil-filled cable terminal 10 schematic diagram.
As depicted in figs. 1 and 2, in the illustrated embodiment, the seal assembly of oil-filled cable terminal specifically includes that metal
Pipe 1012, the first elastic sealing element 1011 and the second elastic sealing element 1013.
In order to realize to the good electrical shielding of cable 113 and the reliability of ground connection, in the reality of an example of the present invention
It applies in example, metal tube 1012 can be made of nonmagnetic conductive metal material.For example, metal tube 1012 can be by copper or aluminum
At.
As depicted in figs. 1 and 2, in the illustrated embodiment, the first elastic sealing element 1011 is molded in metal tube 1012
On outer peripheral surface, for realizing the axial seal of oil-filled cable terminal 10.Second elastic sealing element 1013 is molded in metal tube
On 1012 end, for realizing the radial seal of oil-filled cable terminal 10.
In the illustrated embodiment, as depicted in figs. 1 and 2, due to the first elastic sealing element 1011 and the second elastic packing
Part 1013 is molded on metal tube 1012, and therefore, entire seal assembly 101 is integrated sealing component, this to installation and
Using bringing great convenience.
As depicted in figs. 1 and 2, in the illustrated embodiment, the first elastic sealing element 1011 can be preferable by oil resistivity
Elastic material is made, for example, elastic rubber material.Similarly, the second elastic sealing element 1013 can be by the preferable bullet of oil resistivity
Property material is made, for example, elastic rubber material.
In the embodiment of an example of the present invention, the first elastic sealing element 1011 and the second elastic sealing element 1013
It can also be made of different Oil resistant elastomers of identical Oil resistant elastomers.
As depicted in figs. 1 and 2, in the illustrated embodiment, the first elastic sealing element 1011 be suitable for compressed axially with
In installation oil-filled cable terminal 10 bottom plate 110 on, to realize the axial direction between oil-filled cable terminal 10 and bottom plate 110
Sealing.
As depicted in figs. 1 and 2, in the illustrated embodiment, the second elastic sealing element 1013 with protrude into oil-filled cable end
The cable 113 at end 10 is interference fitted, to realize the radial seal between oil-filled cable terminal 10 and cable 113.
As depicted in figs. 1 and 2, in the illustrated embodiment, the first elastic sealing element 1011 includes base portion 1011a, edge
The interconnecting piece 1011c of portion 1011b and connection base portion 1011a and edge part 1011b.
As depicted in figs. 1 and 2, in the illustrated embodiment, the base portion 1011a of the first elastic sealing element 1011 is directly engaged
Onto the outer peripheral surface of metal tube 1012.The edge part 1011b of first elastic sealing element 1011 is relative to interconnecting piece 1011c in axial direction
On towards two sides protrude.The edge part 1011b of first elastic sealing element 1011 is suitable for being compressed axially on bottom plate 110, to realize
Axial seal between oil-filled cable terminal 10 and bottom plate 110.
As depicted in figs. 1 and 2, in one embodiment of the present of invention, the edge part 1011b of the first elastic sealing element 1011 can
1~5mm is protruded respectively towards two sides in the axial direction relative to interconnecting piece 1011c.For example, the edge part of the first elastic sealing element 1011
1011b can protrude respectively 1mm, 2mm, 3mm, 4mm or 5mm towards two sides in the axial direction relative to interconnecting piece 1011c.
As depicted in figs. 1 and 2, in the illustrated embodiment, the edge part 1011b's of the first elastic sealing element 1011 is transversal
Face is generally circular.The cross section of the base portion 1011a of first elastic sealing element 1011 is substantially trapezoidal, and radially outward
It gradually tapers up.The cross section of the interconnecting piece 1011c of first elastic sealing element 1011 is generally rectangular shaped.Therefore, the first elastic packing
Part 1011 is on the whole butterfly, and therefore, the first elastic sealing element 1011 can be referred to as butterfly sealing element.
As depicted in figs. 1 and 2, in the illustrated embodiment, the second elastic sealing element 1013 has the place for allowing cable 113
The through-hole 1013a that the end 113a managed is passed through.The internal diameter of the through-hole 1013a of second elastic sealing element 1013 is less than cable 113
End 113a outer diameter so that the end 113a and through-hole 1013a of cable 113 are interference fitted, to realize oil-filled cable end
Radial seal between end 10 and cable 113.
In the embodiment of an example of the present invention, the internal diameter of the through-hole 1013a of the second elastic sealing element 1013 can
Think the 90%~96% of the outer diameter of the end 113a of cable 113.That is, the through-hole 1013a's of the second elastic sealing element 1013 is interior
Diameter can be smaller by 4%~10% than the outer diameter of the end 113a of cable 113.
As depicted in figs. 1 and 2, in the illustrated embodiment, the internal diameter of metal tube 1012 is greater than the end 113a of cable 113
Outer diameter.The end 113a of cable 113 passes through metal tube 1012, and does not contact with metal tube 1012.At of the invention one
In embodiment, the gap between the outer surface of the end 113a of the inner surface and cable 113 of metal tube 1012 can be in 5~10mm
Within the scope of.
As depicted in figs. 1 and 2, in the illustrated embodiment, the axis of metal tube 1012 and the second elastic sealing element 1013
Through-hole 1013a axis be overlapped, with guarantee across metal tube 1012 and the cable 113 of through-hole 1013a end 113a it is placed in the middle
Ground is located in metal tube 1012.
As shown in Fig. 2, in another embodiment of the present invention, a kind of oil-filled cable terminal 10 is also disclosed.This is oil-filled
Formula cable termination 10 includes seal assembly 101 shown in FIG. 1.
As shown in Fig. 2, in the illustrated embodiment, oil-filled cable terminal 10 further includes support plate 107 and tail pipe 108.
Support plate 107 and tail pipe 108 are sleeved on cable 113, suitable for being fixed to the bottom plate for installing oil-filled cable terminal 10
On 110 side.
As shown in Fig. 2, in the illustrated embodiment, when support plate 107 and tail pipe 108 are fixed on bottom plate 110, branch
First elastic sealing element 1011 of seal assembly 101 is compressed in the groove of bottom plate 110 by fagging 107, to realize filling type
Axial seal between cable termination 10 and bottom plate 110.
As shown in Fig. 2, in the illustrated embodiment, oil-filled cable terminal 10 further includes insulator 114, insulator 114
It is sleeved on cable 113, it is close using O shape between insulator 114 and bottom plate 110 suitable for being fixed on the other side of bottom plate 110
Seal sealing (not shown).
As shown in Fig. 2, in the illustrated embodiment, oil-filled cable terminal 10 further includes the first semi-conductive tape 102a,
One metal mask tape 103a and the first insulating tape 104a, the first semi-conductive tape 102a are wrapped in the metal tube of seal assembly 101
1012 and cable 113 protective metal shell 111 on, the first metal mask tape 103a is wrapped on the first semi-conductive tape 102a, first
Insulating tape 104a is wrapped on the first metal mask tape 103a.
As shown in Fig. 2, in the illustrated embodiment, oil-filled cable terminal 10 further includes the second semi-conductive tape 102b,
Two metal mask tape 103b and the second insulating tape 104b, the second semi-conductive tape 102b are wrapped in the metal tube of seal assembly 101
1012 and second elastic sealing element 1013 and cable 113a outer semiconducting layer on, the second metal mask tape 103b is wrapped in
On two semi-conductive tape 102b, the second insulating tape 104b is wrapped on the second metal mask tape 103b.
As shown in Fig. 2, in the illustrated embodiment, oil-filled cable terminal 10 further includes the first heat-shrink tube 109 and second
Heat-shrink tube 106,109 pyrocondensation of the first heat-shrink tube is on tail pipe 108 and cable 113, and 106 pyrocondensation of the second heat-shrink tube is in the second insulating tape
On 104b.
As shown in Fig. 2, in the illustrated embodiment, oil-filled cable terminal 10 further includes waterproof sealing band 105, anti-watertight
Envelope band 105 is wrapped on the first insulating tape 104a.
As shown in Fig. 2, in the illustrated embodiment, oil-filled cable terminal further includes being located at protective metal shell 111 and first
Copper braid over braid 112 between metal mask tape 103a.One end of copper braid over braid 112 and the first metal mask tape 103a are by with copper wire
It tightens in the first annular groove 1012a (referring to Fig. 1) of the metal tube 1012 of seal assembly 101, the other end is pricked with copper wire
Tightly on the protective metal shell 111 of cable 113.One end and the other end of copper braid over braid 112 and the first metal mask tape 103a are in quilt
It is respectively welded on metal tube 1012 and protective metal shell 111 after tightening.
It note that the present invention is not limited to previous embodiment, for example, one end of copper braid over braid 112 and the other end can be
Wind the metal tube 1012 and cable 113 for being pre-welded to seal assembly 101 before the first metal mask tape 103a respectively
On protective metal shell 111.In this way, there is no need to use copper wire to tighten the both ends of copper braid over braid 112.
As shown in Fig. 2, in the illustrated embodiment, the other end of the second metal mask tape 103b is tightened with copper wire close
In second ring-shaped groove 1012b (referring to Fig. 1) of the metal tube 1012 of sealing assembly 101.Second metal mask tape 103b's is another
End is soldered on metal tube 1012 after being tightened.
As shown in Fig. 2, in the illustrated embodiment, bottom plate 110 and tail pipe 108 are suitable for connecting with ground terminal, and being used for will
Oil-filled cable terminal ground connection.
Carry out the installation process for the oil-filled cable terminal that the present invention will be described in detail below with reference to Fig. 1 and Fig. 2.
Firstly, support plate 107, tail pipe 108 and heat-shrink tube 109 are inserted on cable 113；
Then, on mounting base 110 to mounting bracket (not shown)；
Then, integral seal 101 is pushed into the position required on cable 113；
Then, integrated sealing component 101 is moved up, so that its first elastic sealing element 1011 is close to bottom plate 110；
Then, the first semi-conductive tape is successively wound on the protective metal shell 111 of integrated sealing component 101 and cable
102a, the first metal mask tape 103a, the first insulating tape 104a and waterproof sealing band 105, and need to be by the first metal mask tape
The copper braid over braid 112 of 103a and cable 113 metal with the metal tube 1012 of integrated sealing component 101 and cable 113 respectively
Sheath 111 tightened with copper tied silk, and carries out soldering；
Then, support plate 107 and tail pipe 108 are fixed to bottom plate 110, compress one using support plate 107 and tail pipe 108
First elastic sealing element 1011 of formula seal assembly 101 realizes the axial seal between seal assembly 101 and bottom plate 110；
Then, the first heat-shrink tube of pyrocondensation 109 on tail pipe 108 and cable 113, is sealed protection；
Then, by the processed of the second elastic sealing element 1013 of 101 other end of integrated sealing component and cable 113
The internal diameter that end 113a interference fit, i.e. the end 113a outer diameter of cable 103 are greater than the through-hole of the second elastic sealing element 1013, it is real
Radial seal between existing seal assembly 101 and cable 113；
Then, the second semi-conductive tape 102b, the second metal mask tape are successively wound on the second elastic sealing element 1013
103b and the second insulating tape 104b, meanwhile, it needs the second metal mask tape 103b penetrating metal tube 1012 using copper tied silk
In slot, and carry out soldering.
Then, the second heat-shrink tube of pyrocondensation 106 on the second insulating tape 104b, is sealed protection；
Then, insulator 114 is fixed to bottom plate 110, between insulator 114 and bottom plate 110 (not using O-ring seals
Diagram) it is sealed；
Finally, connecting by ground terminal with bottom plate 110 or tail pipe 108, the ground connection of oil-filled cable terminal is realized.
By above step, the excellent sealing of oil-filled cable terminal is not only realized, also achieves entire filling type
The reliable ground of cable termination provides guarantee for the safe operation of oil-filled cable terminal.
It will be understood to those skilled in the art that embodiment described above is all exemplary, and this field
Technical staff can make improvements, the rushing in terms of not recurring structure or principle of structure described in various embodiments
It can be freely combined in the case where prominent.
Although in conjunction with attached drawing, the present invention is described, and embodiment disclosed in attached drawing is intended to preferred to the present invention
Embodiment illustrates, and should not be understood as to a kind of limitation of the invention.
Although some embodiments of this present general inventive concept have been shown and have illustrated, those of ordinary skill in the art will be managed
Solution can make a change these embodiments in the case where the principle and spirit without departing substantially from this present general inventive concept, of the invention
Range is limited with claim and their equivalent.
It should be noted that word " comprising " is not excluded for other element or steps, word "a" or "an" is not excluded for multiple.Separately
Outside, the range that any element label of claim should not be construed as limiting the invention.
Claims (25)
1. a kind of seal assembly of oil-filled cable terminal, comprising:
Metal tube (1012)；
First elastic sealing element (1011), is molded on the outer peripheral surface of the metal tube (1012), for realizing the filling type
The axial seal of cable termination (10)；With
Second elastic sealing element (1013), is molded on the end of the metal tube (1012), for realizing the filling type electricity
The radial seal of cable terminal (10).
2. the seal assembly of oil-filled cable terminal according to claim 1, it is characterised in that:
First elastic sealing element (1011) is suitable for being compressed axially for installing the oil-filled cable terminal (10)
On bottom plate (110), to realize the axial seal between the oil-filled cable terminal (10) and the bottom plate (110).
3. the seal assembly of oil-filled cable terminal according to claim 2, it is characterised in that:
Second elastic sealing element (1013) is interference fitted with the cable (113) for protruding into the oil-filled cable terminal (10),
To realize the radial seal between the oil-filled cable terminal (10) and the cable (113).
4. the seal assembly of oil-filled cable terminal according to claim 2, it is characterised in that:
First elastic sealing element (1011) includes base portion (1011a), edge part (1011b) and the connection base portion
The interconnecting piece (1011c) of (1011a) and the edge part (1011b)；
The base portion (1011a) is directly connectcted on the outer peripheral surface of the metal tube (1012), and the edge part (1011b) is opposite
It is protruded in the axial direction towards two sides in the interconnecting piece (1011c), the edge part (1011b) is suitable for being compressed axially at the bottom
On plate (110), to realize the axial seal.
5. the seal assembly of oil-filled cable terminal according to claim 4, it is characterised in that:
The edge part (1011b) protrudes 1~5mm towards two sides in the axial direction relative to the interconnecting piece (1011c) respectively.
6. the seal assembly of oil-filled cable terminal according to claim 5, it is characterised in that:
The edge part (1011b) protruded respectively towards two sides in the axial direction relative to the interconnecting piece (1011c) 1mm, 2mm,
3mm, 4mm or 5mm.
7. the seal assembly of oil-filled cable terminal according to claim 4, it is characterised in that:
The cross section of the edge part (1011b) of first elastic sealing element (1011) is generally circular；
The cross section of the base portion (1011a) of first elastic sealing element (1011) is substantially trapezoidal, and radially outward
It gradually tapers up；
The cross section of the interconnecting piece (1011c) of first elastic sealing element (1011) is generally rectangular shaped.
8. the seal assembly of oil-filled cable terminal according to claim 3, it is characterised in that:
Second elastic sealing element (1013) has the through-hole for allowing the processed end (113a) of cable (113) to pass through
(1013a), the internal diameter of the through-hole (1013a) is less than the outer diameter of the end (113a) of the cable (113), so that the cable
(113) end (113a) and the through-hole (1013a) is interference fitted, to realize the radial seal.
9. the seal assembly of oil-filled cable terminal according to claim 8, it is characterised in that:
The internal diameter of the through-hole (1013a) of second elastic sealing element (1013) is the end (113a) of the cable (113)
The 90%~96% of outer diameter.
10. the seal assembly of oil-filled cable terminal according to claim 8, it is characterised in that:
The internal diameter of the metal tube (1012) is greater than the outer diameter of the end (113a) of the cable (113)；And
Gap between the outer surface of the end (113a) of the inner surface and cable (113) of the metal tube (1012) is 5
Within the scope of~10mm.
11. the seal assembly of oil-filled cable terminal according to claim 10, it is characterised in that:
The axis of the metal tube (1012) is overlapped with the axis of the through-hole (1013a) of second elastic sealing element (1013),
To guarantee across the end (113a) of the metal tube (1012) and the cable (113) of the through-hole (1013a) medially
It is located in the metal tube (1012).
12. the seal assembly of oil-filled cable terminal according to claim 1, it is characterised in that:
First elastic sealing element (1011) and second elastic sealing element (1013) by identical Oil resistant elastomers or
Different Oil resistant elastomers are made.
13. the seal assembly of oil-filled cable terminal according to claim 1, it is characterised in that: the metal tube
(1012) it is made of nonmagnetic conductive metal material.
14. the seal assembly of oil-filled cable terminal according to claim 13, it is characterised in that: the metal tube
(1012) it is made of copper or aluminium.
15. a kind of oil-filled cable terminal characterized by comprising seal assembly described in any one of claim 1-14
(101)。
16. oil-filled cable terminal according to claim 15, it is characterised in that:
The oil-filled cable terminal (10) further includes support plate (107) and tail pipe (108), the support plate (107) and tail pipe
(108) it is sleeved on the cable (113), suitable for being fixed to the bottom plate for installing the oil-filled cable terminal (10)
(110) on side；
When the support plate (107) and tail pipe (108) are fixed on the bottom plate (110), the support plate (107) is by institute
The first elastic sealing element (1011) for stating seal assembly (101) is compressed in the groove of the bottom plate (110), thus described in realizing
Axial seal between oil-filled cable terminal (10) and the bottom plate (110).
17. oil-filled cable terminal according to claim 16, it is characterised in that:
The oil-filled cable terminal (10) further includes insulator (114), and the insulator (114) is sleeved on the cable
(113) on, suitable for being fixed on the other side of the bottom plate (110), the insulator (114) and the bottom plate (110) it
Between using O-ring seals seal.
18. oil-filled cable terminal according to claim 17, it is characterised in that:
The oil-filled cable terminal (10) further includes the first semi-conductive tape (102a), the first metal mask tape (103a) and first
Insulating tape (104a), first semi-conductive tape (102a) are wrapped in metal tube (1012) and the institute of the seal assembly (101)
It states on the protective metal shell (111) of cable (113), first metal mask tape (103a) is wrapped in first semi-conductive tape
On (102a), first insulating tape (104a) is wrapped on first metal mask tape (103a).
19. oil-filled cable terminal according to claim 18, it is characterised in that:
The oil-filled cable terminal (10) further includes the second semi-conductive tape (102b), the second metal mask tape (103b) and second
Insulating tape (104b), second semi-conductive tape (102b) are wrapped in the metal tube (1012) and of the seal assembly (101)
On the outer semiconducting layer of two elastic sealing elements (1013) and the cable (113a), second metal mask tape (103b) is twined
It is wound on second semi-conductive tape (102b), second insulating tape (104b) is wrapped in second metal mask tape
On (103b).
20. oil-filled cable terminal according to claim 19, it is characterised in that:
The oil-filled cable terminal (10) further includes the first heat-shrink tube (109) and the second heat-shrink tube (106), first pyrocondensation
(109) pyrocondensation is managed on the tail pipe (108) and the cable (113), the second heat-shrink tube (106) pyrocondensation is described second
On insulating tape (104b).
21. oil-filled cable terminal according to claim 18, it is characterised in that:
The oil-filled cable terminal (10) further includes waterproof sealing band (105), and the waterproof sealing band (105) is wrapped in described
On first insulating tape (104a).
22. oil-filled cable terminal according to claim 19, it is characterised in that:
The oil-filled cable terminal further include positioned at the protective metal shell (111) and first metal mask tape (103a) it
Between copper braid over braid (112), one end of the copper braid over braid (112) and first metal mask tape (103a) is pricked with copper wire
Tightly in the first annular groove (1012a) of the metal tube (1012) of the seal assembly (101), the other end is tightened with copper wire
On the protective metal shell (111) of the cable (113)；
One end and the other end of the copper braid over braid (112) and first metal mask tape (103a) are divided after being tightened
It is not welded on the metal tube (1012) and the protective metal shell (111).
23. oil-filled cable terminal according to claim 22, it is characterised in that:
The other end of second metal mask tape (103b) is tightened metal tube in the seal assembly (101) with copper wire
(1012) in the second ring-shaped groove (1012b)；
The other end of second metal mask tape (103b) is soldered on the metal tube (1012) after being tightened.
24. oil-filled cable terminal according to claim 19, it is characterised in that:
The oil-filled cable terminal further include positioned at the protective metal shell (111) and first metal mask tape (103a) it
Between copper braid over braid (112), one end of the copper braid over braid (112) is soldered to the metal tube of the seal assembly (101)
(1012) on, the other end is soldered on the protective metal shell (111) of the cable (113).
25. oil-filled cable terminal according to claim 16, it is characterised in that:
The bottom plate (110) and the tail pipe (108) are suitable for connecting with ground terminal, for connecing the oil-filled cable terminal
Ground.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996747.5A CN108963954B (en) | 2018-08-29 | 2018-08-29 | Sealing assembly and oil-filled cable terminal |
| PCT/IB2019/056695 WO2020044145A1 (en) | 2018-08-29 | 2019-08-06 | Sealing assembly and oil-filled cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810996747.5A CN108963954B (en) | 2018-08-29 | 2018-08-29 | Sealing assembly and oil-filled cable terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108963954A true CN108963954A (en) | 2018-12-07 |
| CN108963954B CN108963954B (en) | 2021-01-29 |
Family
ID=64473460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810996747.5A Active CN108963954B (en) | 2018-08-29 | 2018-08-29 | Sealing assembly and oil-filled cable terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108963954B (en) |
| WO (1) | WO2020044145A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3890584A (en) * | 1972-08-03 | 1975-06-17 | Georg Spinner | Means for sealing the crimped end portion of a wave guide |
| US5234515A (en) * | 1991-02-11 | 1993-08-10 | Alcatel Stk A/S | Method of connecting two electrical conductors |
| CN101162832A (en) * | 2006-10-13 | 2008-04-16 | 深圳市长园新材料股份有限公司 | GIS terminal of crosslinked electrical cable |
| CN201113373Y (en) * | 2007-03-15 | 2008-09-10 | 武汉华瑞电力科技股份有限公司 | 110kV-220kV cross linkage cable filling open air terminal |
| CN101512859A (en) * | 2006-09-09 | 2009-08-19 | 哈贝尔有限公司 | Cable glands |
| CN202906422U (en) * | 2012-11-05 | 2013-04-24 | 广东吉熙安电缆附件有限公司 | Novel oil-filled cable terminal |
| CN207559518U (en) * | 2017-11-15 | 2018-06-29 | 常州安凯特电力器件有限公司 | Environment-protection type outdoor terminal cable sealing structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1865516B1 (en) * | 2006-06-07 | 2013-04-10 | Nexans | System with a superconductive cable |
| US7635813B2 (en) * | 2007-09-10 | 2009-12-22 | 3M Innovative Properties Company | Article and method for sealing fluid-containing cables |
| US7960652B2 (en) * | 2008-10-02 | 2011-06-14 | Delphi Technologies, Inc. | Sealed cable and terminal crimp |
| KR101598223B1 (en) * | 2009-02-11 | 2016-02-29 | 엘에스전선 주식회사 | Connecting Structure of Terminal for Super Conductor Cable |
| US9871363B1 (en) * | 2017-03-16 | 2018-01-16 | Te Connectivity Corporation | Seal systems for oil-filled cable terminations and assemblies and methods including the same |
-
2018
- 2018-08-29 CN CN201810996747.5A patent/CN108963954B/en active Active
-
2019
- 2019-08-06 WO PCT/IB2019/056695 patent/WO2020044145A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3890584A (en) * | 1972-08-03 | 1975-06-17 | Georg Spinner | Means for sealing the crimped end portion of a wave guide |
| US5234515A (en) * | 1991-02-11 | 1993-08-10 | Alcatel Stk A/S | Method of connecting two electrical conductors |
| CN101512859A (en) * | 2006-09-09 | 2009-08-19 | 哈贝尔有限公司 | Cable glands |
| CN101162832A (en) * | 2006-10-13 | 2008-04-16 | 深圳市长园新材料股份有限公司 | GIS terminal of crosslinked electrical cable |
| CN201113373Y (en) * | 2007-03-15 | 2008-09-10 | 武汉华瑞电力科技股份有限公司 | 110kV-220kV cross linkage cable filling open air terminal |
| CN202906422U (en) * | 2012-11-05 | 2013-04-24 | 广东吉熙安电缆附件有限公司 | Novel oil-filled cable terminal |
| CN207559518U (en) * | 2017-11-15 | 2018-06-29 | 常州安凯特电力器件有限公司 | Environment-protection type outdoor terminal cable sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108963954B (en) | 2021-01-29 |
| WO2020044145A1 (en) | 2020-03-05 |
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