CN107393649A - A kind of big current-carrying capacity power cable of easy heat radiation - Google Patents
A kind of big current-carrying capacity power cable of easy heat radiation Download PDFInfo
- Publication number
- CN107393649A CN107393649A CN201710372785.9A CN201710372785A CN107393649A CN 107393649 A CN107393649 A CN 107393649A CN 201710372785 A CN201710372785 A CN 201710372785A CN 107393649 A CN107393649 A CN 107393649A
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- China
- Prior art keywords
- core
- cable
- support tube
- carrying capacity
- power cable
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- Insulated Conductors (AREA)
Abstract
The present invention proposes a kind of big current-carrying capacity power cable of easy heat radiation, including central supported core, inner support tube, more first cores, more second cores, central supported core is located at the center of cable, central supported core outer cover is equipped with fire retardant elastic pipe, outside the centrally disposed supporting-core of inner support tube, multiple arcs support member is provided with the inside of inner support tube, more first cores are separately positioned in multiple arcs support member, second core is provided with gap between two curved support parts of arbitrary neighborhood, first core, heat caused by the work of second core is dispersed in the surrounding of central supported core without being concentrated in the middle part of cable, and heat quickly can be distributed outwards, make cable interior environment temperature balanced；Fire retardant elastic pipe is set with outside central supported core, improves the flame-resistant high-temperature-resistant performance of cable, when cable is squeezed, fire retardant elastic pipe, heat-resistant fireproof material can prevent the first core, the second core from being destroyed because being squeezed by deformation buffer extruding force.
Description
Technical field
The present invention relates to power cable technical field, more particularly to a kind of big current-carrying capacity power cable of easy heat radiation.
Background technology
The power cable of existing big current-carrying capacity, the poor and incendive problem of structural stability be present, this is to power cable
Design adds certain difficulty, therefore the level of security of electric wiring and the fire-retardant problem of cable increasingly cause people's
Concern, a flame-retarded comprehensive developing direction for having become cable industry for cable.The current capacity of power cable simultaneously
It is generally relevant with the sectional area of conductor thread core, it can raise conductor temperature when the current increases, once the insulation of conductor outer cladding
The temperature of layer can cause insulating barrier that the change in performance occurs when exceeding the upper limit, so that the insulating reliability of insulating barrier drops significantly
It is low, influence the service life of power cable.
The content of the invention
Based on technical problem present in background technology, the present invention proposes a kind of big current-carrying capacity power cable of easy heat radiation.
The big current-carrying capacity power cable of a kind of easy heat radiation proposed by the present invention, including central supported core, inner support tube, more
One core, more second cores, wherein：
Central supported core is located at the center of cable, and central supported core outer cover is equipped with fire retardant elastic pipe；
Outside the centrally disposed supporting-core of inner support tube, lapping layer, restrictive coating, interior branch are enclosed with outside inner support tube successively
The angle being provided with the inside of stay tube between two curved support parts of multiple arcs support member and arbitrary neighborhood is equal to each other, curved support
The arc opening of part is towards central supported core；
The quantity of first core is consistent with the quantity of curved support part, and more first cores are separately positioned on multiple arcs branch
In support member, more first cores respectively with curved support part inwall against, and more first cores respectively with fire retardant elastic pipe
Outer wall against；
The quantity of second core is consistent with the quantity of curved support part, and between two curved support parts of arbitrary neighborhood
Second core is provided with gap, the second core leans with inner support tube, two neighboring curved support part, in fire retardant elastic
Heat-resistant fireproof material is filled with gap between pipe, the first core, the second core and inner support tube.
Preferably, multiple hollow pipes are provided between inner support tube and lapping layer, two hollow pipes of arbitrary neighborhood abut.
Preferably, be distributed with multiple cavitys axially extending along cable in fire retardant elastic pipe, cavity have oval cross section and
The major axis of cavity is radially arranged along cable.
Preferably, it is filled with cooling agent in cavity.
Preferably, inner support tube is made of elastomeric material, and curved support part, central supported core use hard material system
Into.
Preferably, the central angle corresponding to curved support part is more than 180 degree and is less than 210 degree.
Preferably, the first core includes more the first mutually twisted conductors and be wrapped in outside the first conductor first
Insulating barrier.
Preferably, the second core includes more the second mutually twisted conductors and be wrapped in outside the second conductor second
Insulating barrier.
Preferably, the first insulating barrier, the second insulating barrier are made of polyvinyl chloride insulation material, polyvinyl chloride insulation material bag
Include following weight parts composition：Corvic：80~120 parts；Pentaerythrite octanoic acid butyrate：15~25 parts；Polypropylene：10
~25 parts；Chlorinated paraffin：30~50 parts；Stabilizer：10~15 parts；Fire retardant：20~35 parts；Filler：10~20 parts.By adopting
By the use of Corvic as base rubber, the electrical insulating property of polyvinyl chloride insulation material can be improved by adding chlorinated paraffin.
Preferably, the first insulating barrier, the second insulating barrier are made of polyvinyl chloride insulation material, polyvinyl chloride insulation material bag
Include following weight parts composition：Corvic：90~100 parts；Pentaerythrite octanoic acid butyrate：18~22 parts；Polypropylene：15
~20 parts；Chlorinated paraffin：35~45 parts；Stabilizer：12~13 parts；Fire retardant：25~30 parts；Filler：13~18 parts.
In the present invention, central supported core is located at the center of cable, and central supported core outer cover is equipped with fire retardant elastic pipe,
Outside the centrally disposed supporting-core of inner support tube, multiple arcs support member, more first core difference are provided with the inside of inner support tube
It is arranged in multiple arcs support member, second core is provided with the gap between two curved support parts of arbitrary neighborhood, the
Heat caused by one core, the work of the second core is dispersed in the surrounding of central supported core without being concentrated in the middle part of cable, and
Heat quickly can be distributed outwards, make cable interior environment temperature balanced；Simultaneously fire retardant elastic is set with outside central supported core
Pipe, and heat-resistant fireproof material is filled with the gap between fire retardant elastic pipe, the first core, the second core and inner support tube
Material, the flame-resistant high-temperature-resistant performance of cable is not only increased, and when cable is squeezed, fire retardant elastic pipe, heat-resistant fireproof
Material can prevent the first core, the second core from being destroyed because being squeezed by deformation buffer extruding force.First core of the invention is used
In the big high-voltage alternating circuit of current-carrying capacity, the second core is used for the small low-voltage alternating-current circuit of current-carrying capacity, to meet different current-carrying
Ability.The present invention sets multiple hollow pipes between lapping layer and inner support tube, not only contributes to the first core, the production of the second core
Raw heat distributes, while when power cable is on fire, hollow pipe forms the carburization zone pair of heat-insulated resistance oxygen outside inner support tube
Cable plays protection, so as to prevent flame spread from burning.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the big current-carrying capacity power cable of easy heat radiation proposed by the present invention.
Embodiment
Reference picture 1, the present invention propose a kind of big current-carrying capacity power cable of easy heat radiation, including central supported core 1, inner support tube
2nd, the first core of the six roots of sensation 3, the second core of the six roots of sensation 4, wherein：
Central supported core 1 is made of hard material, and central supported core 1 is located at the center of cable, central supported core 1
Outer cover is equipped with fire retardant elastic pipe 5, and multiple cavitys 51 axially extending along cable are distributed with fire retardant elastic pipe 5, and cavity 51 has
There is oval cross section and the major axis of cavity 51 is radially arranged along cable, cooling agent is filled with cavity 51.
Outside the centrally disposed supporting-core 1 of inner support tube 2, lapping layer 6, restrictive coating are enclosed with outside inner support tube 2 successively
7, multiple hollow pipes 9 are provided between inner support tube 2 and lapping layer 6, two hollow pipes 9 of arbitrary neighborhood abut.Inner support tube 2
The angle that inner side is provided between two curved support parts 8 of six curved support parts 8 and arbitrary neighborhood is equal to each other, curved support part
8 arc opening is more than 180 degree less than 210 degree towards the central angle corresponding to central supported core 1 and curved support part 8, interior
Support tube 2 is made of elastomeric material, and curved support part 8 is made of hard material.
The first core of the six roots of sensation 3 is separately positioned in six curved support parts 8, the first core of the six roots of sensation 3 respectively with curved support
The inwall of part 8 against, and more first cores 3 respectively with the outer wall of fire retardant elastic pipe 5 against.First core 3 includes more mutually
The first twisted conductor 31 and the first insulating barrier 32 being wrapped in outside the first conductor 31.
The quantity of second core 4 is consistent with the quantity of curved support part 8, and two curved support parts 8 of arbitrary neighborhood it
Between gap in be provided with second core 4, the second core 4 leans with inner support tube 2, two neighboring curved support part 8,
Heat-resistant fireproof material 10 is filled with gap between fire retardant elastic pipe 5, the first core 3, the second core 4 and inner support tube 2.
Second core 4 includes more the second mutually twisted conductors 41 and the second insulating barrier 42 being wrapped in outside the second conductor 41.
In the present invention, the first insulating barrier, the second insulating barrier are made of polyvinyl chloride insulation material, polyvinyl chloride insulation material
Including following weight parts composition：Corvic：80~120 parts；Pentaerythrite octanoic acid butyrate：15~25 parts；Polypropylene：
10~25 parts；Chlorinated paraffin：30~50 parts；Stabilizer：10~15 parts；Fire retardant：20~35 parts；Filler：10~20 parts.Pass through
Using Corvic as base rubber, the electrical insulating property of polyvinyl chloride insulation material can be improved by adding chlorinated paraffin.
In a particular embodiment, the first insulating barrier, the second insulating barrier are made of polyvinyl chloride insulation material, polyvinyl chloride
Insulation Material includes following weight parts composition：Corvic：90~100 parts；Pentaerythrite octanoic acid butyrate：18~22 parts；
Polypropylene：15~20 parts；Chlorinated paraffin：35~45 parts；Stabilizer：12~13 parts；Fire retardant：25~30 parts；Filler：13~18
Part.
The big current-carrying capacity power cable of a kind of easy heat radiation proposed by the present invention, central supported core 1 are located at the center of cable,
The outer cover of central supported core 1 is equipped with fire retardant elastic pipe 5, outside the centrally disposed supporting-core 1 of inner support tube 2, the inner side of inner support tube 2
Provided with multiple arcs support member 8, the first core of the six roots of sensation 3 is separately positioned in six curved support parts 8, two arcs of arbitrary neighborhood
Be provided with second core 4 in gap between support member 8, the first core 3, the second core 4 work caused by heat be dispersed in
The surrounding of central supported core 1 is without being concentrated in the middle part of cable, and heat quickly can be distributed outwards, make cable internal environment
Temperature equalization；Fire retardant elastic pipe 5 is set with outside central supported core 1 simultaneously, multiple cavitys 51 are set simultaneously in fire retardant elastic pipe 5
Cooling agent is filled in cavity, is filled out in the gap between fire retardant elastic pipe 5, the first core 3, the second core 4 and inner support tube 2
Filled with heat-resistant fireproof material 10, not only increase the flame-resistant high-temperature-resistant performance and heat dispersion of cable, and when cable by
During extruding, fire retardant elastic pipe 5, heat-resistant fireproof material 10 can prevent the first core 3, the second line by deformation buffer extruding force
Core 4 destroys because being squeezed.First core 3 of the invention is used for the big high-voltage alternating circuit of current-carrying capacity, and the second core 4 is used for current-carrying
Small low-voltage alternating-current circuit is measured, to meet different current capacities.The present invention sets more between lapping layer 6 and inner support tube 2
Individual hollow pipe 9, not only contributes to the first core 3, heat caused by the second core 4 distributes, while when power cable is on fire,
The carburization zone that hollow pipe 9 forms heat-insulated resistance oxygen outside inner support tube 2 plays protection to cable, so as to prevent flame spread from burning.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (8)
1. a kind of big current-carrying capacity power cable of easy heat radiation, it is characterised in that including central supported core (1), inner support tube (2), more
The core of root first (3), more second cores (4), wherein：
Central supported core (1) is located at the center of cable, and central supported core (1) outer cover is equipped with fire retardant elastic pipe (5)；
Inner support tube (2) centrally disposed supporting-core (1) is outside, is enclosed with lapping layer (6), shield outside inner support tube (2) successively
Jacket layer (7), inner support tube (2) inner side are provided between two curved support parts (8) of multiple arcs support member (8) and arbitrary neighborhood
Angle is equal to each other, and the arc opening of curved support part (8) is towards central supported core (1)；
The quantity of first core (3) is consistent with the quantity of curved support part (8), and more first cores (3) are separately positioned on multiple
In curved support part (8), more first cores (3) are respectively with curved support part (8) inwall against and more first cores
(3) respectively with fire retardant elastic pipe (5) outer wall against；
The quantity of second core (4) is consistent with the quantity of curved support part (8), and two curved support parts (8) of arbitrary neighborhood
Between gap in be provided with second core (4), the second core (4) and inner support tube (2), two neighboring curved support part
(8) lean, filled out in the gap between fire retardant elastic pipe (5), the first core (3), the second core (4) and inner support tube (2)
Filled with heat-resistant fireproof material (10).
2. the big current-carrying capacity power cable of easy heat radiation according to claim 1, it is characterised in that inner support tube (2) with it is wrapped
Multiple hollow pipes (9) are provided between layer (6), two hollow pipes (9) of arbitrary neighborhood abut.
3. the big current-carrying capacity power cable of easy heat radiation according to claim 1, it is characterised in that divide in fire retardant elastic pipe (5)
Multiple cavitys axially extending along cable (51) are furnished with, cavity (51) has the major axis of oval cross section and cavity (51) along cable footpath
To setting.
4. the big current-carrying capacity power cable of easy heat radiation according to claim 3, it is characterised in that filled with cold in cavity (51)
But agent.
5. the big current-carrying capacity power cable of easy heat radiation according to any one of claim 1-4, it is characterised in that inner support tube
(2) it is made of elastomeric material, curved support part (8), central supported core (1) are made of hard material.
6. the big current-carrying capacity power cable of easy heat radiation according to any one of claim 1-4, it is characterised in that curved support
Central angle corresponding to part (8) is more than 180 degree and is less than 210 degree.
7. the big current-carrying capacity power cable of easy heat radiation according to any one of claim 1-4, it is characterised in that the first core
(3) include more mutually twisted the first conductors (31) and be wrapped in outside the first insulating barrier (32) of the first conductor (31).
8. the big current-carrying capacity power cable of easy heat radiation according to any one of claim 1-4, it is characterised in that the second core
(4) include more mutually twisted the second conductors (41) and be wrapped in outside the second insulating barrier (42) of the second conductor (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372785.9A CN107393649B (en) | 2017-05-24 | 2017-05-24 | Power cable easy to radiate and high in current-carrying capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372785.9A CN107393649B (en) | 2017-05-24 | 2017-05-24 | Power cable easy to radiate and high in current-carrying capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107393649A true CN107393649A (en) | 2017-11-24 |
| CN107393649B CN107393649B (en) | 2020-05-15 |
Family
ID=60338436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710372785.9A Active CN107393649B (en) | 2017-05-24 | 2017-05-24 | Power cable easy to radiate and high in current-carrying capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107393649B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735354A (en) * | 2018-08-10 | 2018-11-02 | 郑州极致科技有限公司 | A kind of flexible cable with heat dissipation effect |
| CN109215873A (en) * | 2018-09-25 | 2019-01-15 | 山东大学 | The cooling charging cable of liquid and electric vehicle rapid charging equipment |
| CN110400658A (en) * | 2019-02-22 | 2019-11-01 | 淮南文峰航天电缆有限公司 | A kind of super soft low-loss high-temperature-resisting vehicle-mounted CAN signal bus of multichannel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203826030U (en) * | 2014-03-04 | 2014-09-10 | 安徽复兴电缆集团有限公司 | Internal-cooling high temperature-resisting multifunctional cable |
| CN203931601U (en) * | 2014-06-27 | 2014-11-05 | 安徽弘毅电缆集团有限公司 | A kind of easily large ampacity electric power cable of heat radiating type |
| CN205335002U (en) * | 2016-01-13 | 2016-06-22 | 湖南盛世电线电缆有限公司 | Composite cable |
| WO2017009760A1 (en) * | 2015-07-10 | 2017-01-19 | Bigaran S.R.L. | Refractory composite material, method for the preparation and use thereof, manufactured items and method for the preparation of said manufactured items. |
| CN106683759A (en) * | 2016-12-09 | 2017-05-17 | 晋源电气集团股份有限公司 | High heat-dissipation anti-magnetic shielding power transmission cable |
-
2017
- 2017-05-24 CN CN201710372785.9A patent/CN107393649B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203826030U (en) * | 2014-03-04 | 2014-09-10 | 安徽复兴电缆集团有限公司 | Internal-cooling high temperature-resisting multifunctional cable |
| CN203931601U (en) * | 2014-06-27 | 2014-11-05 | 安徽弘毅电缆集团有限公司 | A kind of easily large ampacity electric power cable of heat radiating type |
| WO2017009760A1 (en) * | 2015-07-10 | 2017-01-19 | Bigaran S.R.L. | Refractory composite material, method for the preparation and use thereof, manufactured items and method for the preparation of said manufactured items. |
| CN205335002U (en) * | 2016-01-13 | 2016-06-22 | 湖南盛世电线电缆有限公司 | Composite cable |
| CN106683759A (en) * | 2016-12-09 | 2017-05-17 | 晋源电气集团股份有限公司 | High heat-dissipation anti-magnetic shielding power transmission cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735354A (en) * | 2018-08-10 | 2018-11-02 | 郑州极致科技有限公司 | A kind of flexible cable with heat dissipation effect |
| CN109215873A (en) * | 2018-09-25 | 2019-01-15 | 山东大学 | The cooling charging cable of liquid and electric vehicle rapid charging equipment |
| CN110400658A (en) * | 2019-02-22 | 2019-11-01 | 淮南文峰航天电缆有限公司 | A kind of super soft low-loss high-temperature-resisting vehicle-mounted CAN signal bus of multichannel |
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| Publication number | Publication date |
|---|---|
| CN107393649B (en) | 2020-05-15 |
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