CN208337132U - Three-phase cable intermediate head - Google Patents
Three-phase cable intermediate head Download PDFInfo
- Publication number
- CN208337132U CN208337132U CN201821039710.5U CN201821039710U CN208337132U CN 208337132 U CN208337132 U CN 208337132U CN 201821039710 U CN201821039710 U CN 201821039710U CN 208337132 U CN208337132 U CN 208337132U
- Authority
- CN
- China
- Prior art keywords
- transition joint
- cable transition
- cone
- threephase cable
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007704 transition Effects 0.000 claims description 35
- 239000004020 conductor Substances 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 9
- 238000009413 insulation Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 239000004703 cross-linked polyethylene Substances 0.000 description 4
- 229920003020 cross-linked polyethylene Polymers 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model relates to a three-phase cable intermediate head, which comprises an explosion-proof shell, a fastening screw rod arranged in the explosion-proof shell, a three-phase female head arranged in the middle of the explosion-proof shell and a three-phase male head arranged at two ends of the three-phase female head and matched with the three-phase female head; the fastening screw rod penetrates through the male heads at the two ends. The utility model realizes the convenient plugging of the three-phase cable intermediate joint by male-female connection and mechanical locking, and has convenient installation and higher installation efficiency; due to the structural integrity, the size of the joint is effectively reduced; meanwhile, the mechanical locking has better fluctuation resistance and can be laid in an environment with larger vibration.
Description
Technical field
The utility model relates to a kind of transition joints, more specifically to a kind of threephase cable transition joint.
Background technique
In the prior art, in order to improve power supply reliability, urban electricity supply route is more and more to use power cable, and leads to
Cross the connection that cable and cable are realized in transition joint.Transition joint be generally divided into the transition joint of thermal contraction formula, in cold-contraction type indirectly
Head and prefabricated transition joint.Since prefabricated transition joint generally uses silicon rubber or EP rubbers material, mainly using several
What Structure Method, that is, stress cone handles the problems in stress collection, has the advantages that material property is excellent, elasticity is good, simple installation is fast
Victory, without heating i.e. mountable, the available larger improvement of interface performance, therefore it is attached in mesolow and high-tension cable in recent years
Part field is widely adopted.But prefabricated transition joint currently on the market is suitable for single-core cable more, is unable to satisfy three-phase electricity
The demand that cable is attached is unfavorable for the laying of urban electricity supply route (mostly 10kV or 35kV).
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of three-phase electricity
Cable transition joint.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of threephase cable transition joint is constructed,
The threephase cable transition joint includes explosion-proof shell, the fastening screw being arranged in the explosion-proof shell, is arranged in explosion-proof shell
The three-phase female at middle part and the three-phase male connector that three-phase female both ends are set to match with three-phase female；The fastening screw
Male connector through both ends.
As a further improvement of the above technical scheme, central location setting metallic conductor is plugged into above-described female
Part, the metallic conductor connecting parts successively outer provided with shielding layer and epoxy resin layer；The male connector successively includes tail pipe, stress
Cone is arranged in the spring between tail pipe and stress cone, compresses cone and the contact ring for compressing cone outer layer is arranged in.
As a further improvement of the above technical scheme, above-described explosion-proof shell uses sheet metal forging and forming, with mother
Head integrated molding.
As a further improvement of the above technical scheme, above-described fastening screw is three.
As a further improvement of the above technical scheme, above-described metallic conductor connecting parts, shielded layer, epoxy resin
The common moulding by casting of layer is integrated.
As a further improvement of the above technical scheme, above-described shielded layer is copper mesh shielded layer.
As a further improvement of the above technical scheme, above-described stress cone is using silicon rubber and semiconductive composite wood
Material, the stress cone end also set up becket, and becket is between stress cone and metallic conductor connecting parts.
As a further improvement of the above technical scheme, above-described compression cone and contact ring are set using pyramidal structure
Meter, the length for contacting ring, which is less than, compresses cone, is stuck in compression cone outer layer.
As a further improvement of the above technical scheme, above-described tail pipe is made of 40mm thickness aluminium alloy plate.
A kind of threephase cable transition joint for implementing the utility model, has the advantages that
It being connected by male-female head, the locked mode of machinery realizes the convenient plug of threephase cable transition joint, it is easy for installation,
Installation effectiveness is higher；Due to its structural intergrity, the size of connector is effectively reduced；Meanwhile mechanical interlocking has preferable resist
Fluctuation can be laid in and shake biggish environment.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is a kind of structural schematic diagram of threephase cable transition joint of the utility model；
Fig. 2 is a kind of threephase cable transition joint combination assembling structure schematic diagram of the utility model；
Fig. 3 is that wherein structural schematic diagram is cutd open in a phase side to a kind of threephase cable transition joint of the utility model；
In figure: metallic conductor connecting parts 1, shielded layer 2, epoxy resin layer 3, fastening screw 4, explosion-proof shell 5, compress cone 61,
Contact ring 6, stress cone becket 7, waterproof rubber ring 8, spring 9, stress cone 10, tail pipe 11, cable core 12, shield semiconductors
Layer 13, XLPE insulation 14.
Specific embodiment
As shown in Figure 1-3, in a kind of embodiment of threephase cable transition joint of the utility model, the three-phase electricity
Cable transition joint includes explosion-proof shell 5, is arranged in the explosion-proof shell 5 three fastening screws 4, setting are at 5 middle part of explosion-proof shell
Three-phase female and the three-phase male connector that three-phase female both ends are set that matches with three-phase female；The fastening screw 4 passes through
Wear the male connector at both ends.In the female central location be arranged metallic conductor connecting parts 1, the metallic conductor connecting parts 1 according to
Secondary peripheral hardware copper mesh shielded layer 2 and epoxy resin layer 3；The male connector successively includes tail pipe 11, stress cone 10, is arranged in tail pipe 11
Spring 9, compression cone 61 between stress cone 10 and the contact ring 6 that compression 61 outer layers of cone are set.
10kV cable is made of cable core 12, semi-conductive shield 13, XLPE insulation 14, by 10kV
Tail pipe 11 is passed through after threephase cable removing phase insulation to fill in stress cone 10, is shelled in 10 end cable of stress cone
It is compressed from being filled in compression cone 61 after XLPE insulation 14 through professional crimping tool.Connector exterior aluminium casting tail pipe 11 passes through nut and passes through
The fastening screw 4 for wearing connector connects, and it is real that spring 9 squeezes spring 9 between tail pipe 11 and stress cone 10, through fastening screw 4
Existing three-phase male and female head closely connects.The presence of waterproof rubber ring 8 makes the gap between each component be reduced to minimum, is conducive to subtract
Shake；Explosion-proof shell 5 is located on the outside of threephase cable transition joint, carries out Global Macros to threephase cable transition joint.Cable stripping phase
Between insulate after pass through tail pipe 11 and fill in stress cone 10 and concentrated with improving its field strength distribution and stress, in 10 end of stress cone electricity
It fills in compression cone 61 after cable removing XLPE insulation 14 and is compressed through professional crimping tool, due to compressing the cone of cone 61 and contact ring 6
The design of shape structure ensure that cable core and compress the close connection of cone.Spring 9 plays machine between stress cone 10 and tail pipe 11
Tool connection function.
In a kind of threephase cable transition joint of the utility model, the metallic conductor connecting parts 1 play connecting cable
The effect of core.Be laid with copper mesh shielded layer 2 between three-phase metallic conductor connecting parts 1, can uniformly alternate electric field, improve electric field
Distortion.The metallic conductor connecting parts 1, copper mesh shielded layer 2, the common moulding by casting of epoxy resin layer 3 are integrated.Each portion of female
Divide close connection, avoids the presence between each layer due to air gap and cause shelf depreciation, improve the security performance of product.
It is cased with compression cone 61 on the outside of cable core to be compressed with contact ring 6, the compression cone 61 and contact ring 6 use
Taper structure design, the length of contact ring 6, which is less than, compresses cone 61, is stuck in compression 61 outer layers of cone；So that compressing cone 61 and cable
Core, contact ring 6 and compression cone 61 are realized and are in close contact.
The stress cone 10 can be realized electric field from cable core to insulation using silicon rubber and semiconductive composite material
The smooth transition of material reduces interfacial polarization.Meanwhile 10 end of stress cone also sets up becket 7,10 end metal ring of stress cone
7 between stress cone 10 and metallic conductor connecting parts 1, and becket 7 uses fillet design, and 10 edge of stress cone can be effectively reduced
Locate electric field strength.
The explosion-proof shell 5 uses sheet metal forging and forming, with female integrated molding.Explosion-proof shell 5,4 and of fastening screw
Tail pipe 11 is grounded simultaneously, and when insulation fault breakdown female insulation occurs for threephase cable transition joint, high current can be by explosion-proof
Shell 5 enters ground, reduces the probability of explosion.If accident, which occurs, for cable intermediate joint generates explosion, explosion-proof shell 5 is stronger explosion-proof because of its
Ability, the high pressure draught that can also generate explosion, flame and fragment are limited in explosion-proof shell 5, avoid fault spread, prevent secondary
Accident.
The tail pipe 11 is made of 40mm thickness aluminium alloy plate, is embedded in metal explosion-proof shell, and each insulating part of protection is played
And the effect of metalwork.Spring 9 squeezes spring 9 by fastening screw 4 and realizes male and female between tail pipe 11 and stress cone 10
The close connection of head, has been effectively ensured the structural stability and shock resistance of threephase cable transition joint.
Spring 9 is squeezed by way of fastening screw 4 and then realizes that contact ring 6 connects with the close of metallic conductor connecting parts 1
Touching.Meanwhile biggish contact pressure also effectively reduces the contact resistance between contact ring 6 and metallic conductor connecting parts 1.The present invention
Mechanical interlocking there is preferable anti-fluctuation, can be laid in and shake biggish environment.
In conclusion such as those of ordinary skill is scrutable in the art, described in this specification only originally
One preferred embodiment of utility model, the change or modification that all designs according to the utility model are made all should be practical new at this
In the claims of type.
Claims (9)
1. a kind of threephase cable transition joint, which is characterized in that the threephase cable transition joint includes explosion-proof shell, described
Explosion-proof shell in be arranged fastening screw, the three-phase female being arranged in the middle part of explosion-proof shell and the setting to match with three-phase female exist
The three-phase male connector at three-phase female both ends；The fastening screw runs through the male connector at both ends.
2. a kind of threephase cable transition joint according to claim 1, which is characterized in that central location in the female
Metallic conductor connecting parts, the metallic conductor connecting parts successively outer provided with shielding layer and epoxy resin layer are set；The male connector
Successively include tail pipe, stress cone, the spring between tail pipe and stress cone is set, compresses cone and is arranged in compress and bore outer layer
Contact ring.
3. a kind of threephase cable transition joint according to claim 1, which is characterized in that the explosion-proof shell uses thin steel
Plate forging and forming, with female integrated molding.
4. a kind of threephase cable transition joint according to claim 1, which is characterized in that the fastening screw is three
It is a.
5. a kind of threephase cable transition joint according to claim 2, which is characterized in that the metallic conductor is plugged into
The common moulding by casting of part, shielded layer, epoxy resin layer is integrated.
6. a kind of threephase cable transition joint according to claim 2, which is characterized in that the shielded layer is copper mesh screen
Cover layer.
7. a kind of threephase cable transition joint according to claim 2, which is characterized in that the stress cone uses silicon rubber
Glue and semiconductive composite material, the stress cone end also set up becket, and becket is located at stress cone and connects with metallic conductor
It refutes between part.
8. a kind of threephase cable transition joint according to claim 2, which is characterized in that the compression cone and contact ring
Using taper structure design, the length for contacting ring, which is less than, compresses cone, is stuck in compression cone outer layer.
9. a kind of threephase cable transition joint according to claim 2, which is characterized in that the tail pipe is thick using 40mm
Aluminium alloy plate production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821039710.5U CN208337132U (en) | 2018-07-03 | 2018-07-03 | Three-phase cable intermediate head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821039710.5U CN208337132U (en) | 2018-07-03 | 2018-07-03 | Three-phase cable intermediate head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208337132U true CN208337132U (en) | 2019-01-04 |
Family
ID=64786112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821039710.5U Active CN208337132U (en) | 2018-07-03 | 2018-07-03 | Three-phase cable intermediate head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208337132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808617A (en) * | 2018-07-03 | 2018-11-13 | 深圳供电局有限公司 | Three-phase cable intermediate head |
-
2018
- 2018-07-03 CN CN201821039710.5U patent/CN208337132U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808617A (en) * | 2018-07-03 | 2018-11-13 | 深圳供电局有限公司 | Three-phase cable intermediate head |
| CN108808617B (en) * | 2018-07-03 | 2024-05-17 | 深圳供电局有限公司 | Three-phase cable intermediate joint |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |