CN108766659B - Heat dissipation type cable - Google Patents
Heat dissipation type cable Download PDFInfo
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- CN108766659B CN108766659B CN201810585168.1A CN201810585168A CN108766659B CN 108766659 B CN108766659 B CN 108766659B CN 201810585168 A CN201810585168 A CN 201810585168A CN 108766659 B CN108766659 B CN 108766659B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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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
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0216—Two layers
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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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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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
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
Abstract
The invention discloses a heat dissipation type cable which comprises a conductor wire core and a first insulating layer, wherein a shielding layer is arranged on the surface of the first insulating layer, an outer protective sleeve structure is arranged on the outer side of the shielding layer, the outer protective sleeve structure sequentially comprises an outer sheath protective sleeve, a second insulating layer and an interlocking armor layer from outside to inside, and a filling layer is arranged between the interlocking armor layer and the shielding layer. The first insulating layer and the second insulating layer are made of nanometer heat dissipation insulating composite materials. The cable provided by the invention has the first insulating layer and the second insulating layer, the insulating effect of the double spaces is good, and most importantly, the first insulating layer and the second insulating layer are made of the nanometer heat dissipation insulating composite material, so that the insulating effect is achieved, the heat dissipation effect is good, the thickness of the cable is greatly reduced, and the overall heat dissipation effect of the cable is good.
Description
Technical Field
The invention relates to a heat dissipation type cable, and belongs to the technical field of cables.
Background
The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater. In the power lines, the cable is increasing in specific gravity. Power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables. At present, along with the development of society, the power consumption also increases along with the same, and the requirement on the cable is higher and higher, and when the cable passes through certain load current, must generate heat, along with the increase of load current, the cable surface temperature just is higher, if the current carrying capacity of electric wire and cable surpasss its limit bearing capacity, can cause the conflagration because the heat dissipation is untimely, causes life and property loss to be sufficient.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a heat dissipation type cable, wherein an insulating layer of the heat dissipation type cable is made of a novel nano heat dissipation insulating material, such that the cable has a good heat dissipation effect.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a nanometer heat dissipation type cable, includes conductor sinle silk, first insulation layer, and first insulation layer surface has the shielding layer, and the shielding layer outside is outer protective sheath structure, outer protective sheath structure by outer sheath, second insulation layer, interlocking armor of including in proper order to interior, interlocking armor and shielding layer between have the filling layer.
The first insulating layer and the second insulating layer are made of nanometer heat dissipation insulating composite materials.
The shielding layer is a tinned copper wire braided shielding layer.
The crust is a low-smoke halogen-free sheath.
The cable provided by the invention has the first insulating layer and the second insulating layer, the insulating effect of the double spaces is good, and most importantly, the first insulating layer and the second insulating layer are made of the nanometer heat dissipation insulating composite material, so that the insulating effect is achieved, the heat dissipation effect is good, the thickness of the cable is greatly reduced, and the overall heat dissipation effect of the cable is good.
Drawings
Fig. 1 is a schematic diagram of a cable structure provided by an embodiment of the present invention;
in the figure, 1, a core conductor, 2, a first insulating layer, 3, a conductor shielding layer, 4, a filling layer, 5, an interlocking armor layer, 6, a second insulating layer, 7 and a sheath.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a nanometer heat dissipation cable according to an embodiment of the present invention includes a conductor core, a first insulating layer, a shielding layer on a surface of the first insulating layer, an outer protective sleeve structure outside the shielding layer, the outer protective sleeve structure sequentially including an outer sheath, a second insulating layer, and an interlocking armor layer from outside to inside, and a filling layer is disposed between the interlocking armor layer and the shielding layer.
The first insulating layer and the second insulating layer are made of nanometer heat dissipation insulating composite materials.
The shielding layer is a tinned copper wire braided shielding layer.
The crust is a low-smoke halogen-free sheath.
The cable provided by the invention has the first insulating layer and the second insulating layer, the insulating effect of the double spaces is good, and most importantly, the first insulating layer and the second insulating layer are made of the nanometer heat dissipation insulating composite material, so that the insulating effect is achieved, the heat dissipation effect is good, the thickness of the cable is greatly reduced, and the overall heat dissipation effect of the cable is good.
The nanometer heat dissipation insulating composite material is characterized in that the surface of an aluminum nitride nanosheet is functionalized by adopting microwave plasma, and the surface of the aluminum nitride nanosheet is reacted with methacrylic acid to prepare vinyl-aluminum nitride nanosheet functionalized nanoparticles, and in the preparation process, heat conduction materials are uniformly dispersed in a three-dimensional network structure system and form a three-dimensional heat dissipation structure, so that the heat dissipation speed of the composite material is increased. The preparation method of the heat-conducting insulating material is simple, stable and reliable, and compared with the traditional heat-conducting material, the heat-conducting insulating material has the advantages of high heat-conducting coefficient, good processing performance and relatively low cost, and is suitable for large-scale and industrial production. The preparation method comprises the following steps:
example 1
1) Weighing 100 parts by weight of aluminum nitride micro powder, adding the aluminum nitride micro powder into 300 parts by weight of 75% ethanol solution by mass, ultrasonically dispersing for 10-15 min, adding 100 parts by weight of 5mol/L NaOH solution, magnetically stirring and carrying out reflux reaction for 15-18 h under the condition of 150rmp in a silicon oil bath at 95-105 ℃, distilling out ethanol, and washing the obtained solution with 150 parts by weight of water until the pH value of filtrate is 7-7.5 for later use;
2) weighing 90.5 parts by weight of the hydroxylated aluminum nitride blending solution, performing wet ball milling for 24 hours at the rotating speed of 2000r/min by using a sand mill, transferring the solution into a beaker, heating the solution in a water bath to 60 ℃, immediately placing the solution into a low-temperature experimental refrigerator at-28 ℃, freezing the solution for 12 hours, naturally heating the solution to room temperature, heating the solution in the water bath to 60 ℃, immediately placing the solution into the low-temperature experimental refrigerator at-28 ℃, freezing the solution for 12 hours, circularly operating the method for 5 times, treating the beaker in an ultrasonic cell crusher for 4 hours to obtain a mixed dispersion solution of aluminum nitride, performing centrifugal treatment for 10 minutes at 4000rmp, taking supernatant, vacuumizing the supernatant in a stainless steel chamber to the pressure of 0.3Pa, keeping the solution at room temperature for 10 minutes, and then taking the supernatant, cleaning and drying the supernatant to obtain a functional aluminum nitride nanosheet;
3) weighing 55 parts by weight of the prepared functionalized aluminum nitride nanosheet, dissolving the functionalized aluminum nitride nanosheet in 150 parts by weight of 25% toluene solution, dropwise adding 30 parts by weight of 65% methacrylic acid, reacting at 100-120 ℃ for 2-3 h, and performing suction filtration and drying to obtain vinyl-aluminum nitride nanosheet functionalized nanoparticles;
4) weighing 85 parts by weight of nano SiO in sequence2The preparation method comprises the following steps of putting hybrid vinyl phenyl resin, 25 parts by weight of epoxy resin, 30 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles, 15 parts by weight of cyclohexanone peroxide acetone solution with the mass concentration of 6% and 70 parts by weight of carbon fiber resin-based composite material in a closed heating chamber, heating to 200 ℃, introducing high-purity nitrogen while carrying out heat preservation melting treatment for 2 hours, and naturally cooling to room temperature to obtain the prepared novel heat-conducting insulating material.
Example 2
Exactly the same as example 1, except that: weighing 20 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles and 80 parts by weight of carbon fiber resin-based composite material.
Example 3
Exactly the same as example 1, except that: weighing 25 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles and 75 parts by weight of carbon fiber resin-based composite material.
Example 4
Exactly the same as example 1, except that: weighing 35 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles and 65 parts by weight of carbon fiber resin-based composite material.
Example 5
Exactly the same as example 1, except that: weighing 40 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles and 60 parts by weight of carbon fiber resin-based composite material.
Example 6
Exactly the same as example 1, except that: weighing 45 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles and 55 parts by weight of carbon fiber resin-based composite material.
Example 7
Exactly the same as example 1, except that: weighing 50 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles and 50 parts by weight of carbon fiber resin-based composite material.
Example 8
Exactly the same as example 1, except that: weighing 55 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles and 45 parts by weight of carbon fiber resin-based composite material.
Example 9
Exactly the same as example 1, except that: weighing 60 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles and 40 parts by weight of carbon fiber resin-based composite material.
Comparative example 1
Exactly the same as example 1, except that: the carbon fiber resin-based composite material is not added in the preparation of the heat-conducting insulating material.
Comparative example 2
Exactly the same as example 1, except that: the carbon fiber resin matrix composite material is prepared without adding magnesium oxide powder.
Comparative example 3
Exactly the same as example 1, except that: the carbon fiber resin-based composite material is prepared without adding dimethylformamide.
Comparative example 4
Exactly the same as example 1, except that: the carbon fiber resin matrix composite material is prepared without adding polypropylene non-woven fabrics.
Comparative example 5
Exactly the same as example 1, except that: the polyallylamine resin is used for replacing ABS resin for preparing the carbon fiber resin matrix composite material.
Comparative example 6
Exactly the same as example 1, except that: vinyl phenyl resin added during preparation of the heat-conducting insulating material is not subjected to nano SiO2Hybridization is carried out.
Comparative example 7
Exactly the same as example 1, except that: epoxy resin is not added in the preparation of the heat-conducting insulating material.
Comparative example 8
Exactly the same as example 1, except that: when the heat-conducting insulating material is prepared, ABS resin is used for replacing carbon fiber resin matrix composite material.
Comparative example 9
Exactly the same as example 1, except that: the heat-conducting insulating material is prepared without wet ball milling under a sand mill.
The novel heat conductive insulating materials prepared in examples 1 to 9 and comparative examples 1 to 9 were subjected to a heat conductive property test in the following manner.
Taking the prepared novel heat-conducting insulating material 100mm (length) x 50mm (width) x 20mm (height), putting the novel heat-conducting insulating material into a heat-conducting coefficient tester, and testing the heat-conducting coefficient of the novel heat-conducting insulating material; and testing the alternating current insulation breakdown voltage by using an insulation material breakdown voltage tester.
Heat-conducting property experiment of novel heat-conducting insulating material
It can be found from the embodiments 1 to 9 that when the embodiment 1 is in the proportioning environment, the thermal conductivity coefficient of the prepared thermal conductive insulation material is the highest, and reaches 4.92W/(m · K), and the alternating current insulation breakdown voltage reaches 103kv/mm, while the thermal conductivity coefficients of the thermal conductive insulation materials prepared in the embodiments 2 to 9 are not particularly ideal, and are all below 1.0W/(m · K), while the thermal conductivity coefficient of the thermal conductive insulation material prepared in the embodiment 1 is surprisingly high, and the possible reason is that in the proportion of the embodiment 1, the vinyl-aluminum nitride nanosheet functionalized nanoparticles can perform a cross-linking reaction with the added carbon fiber resin-based composite material to form a high polymer, and the formed material has a directional arrangement, and has a compact and loose structure, so that the thermal conductivity is enhanced. In addition, comparative examples 1 to 5 show that the addition of the carbon fiber resin-based composite material has a large influence on the heat conduction and insulation performance of the heat conduction and insulation material, and comparative examples 5 to 9 show that the selection of raw materials and conditions for preparing the heat conduction and insulation material has a prominent influence on the heat conduction and insulation performance.
Claims (3)
1. A heat dissipation type cable is characterized by comprising a conductor wire core and a first insulating layer, wherein a shielding layer is arranged on the surface of the first insulating layer, an outer protective sleeve structure is arranged on the outer side of the shielding layer, the outer protective sleeve structure sequentially comprises an outer sheath, a second insulating layer and an interlocking armor layer from outside to inside, and a filling layer is arranged between the interlocking armor layer and the shielding layer;
the preparation method of the nanometer heat dissipation insulation composite material comprises the following steps:
1) weighing 100 parts by weight of aluminum nitride micro powder, adding the aluminum nitride micro powder into 300 parts by weight of 75% ethanol solution by mass, ultrasonically dispersing for 10-15 min, adding 100 parts by weight of 5mol/L NaOH solution, magnetically stirring and carrying out reflux reaction for 15-18 h under the condition of 150rmp in a silicon oil bath at 95-105 ℃, distilling out ethanol, and washing the obtained solution with 150 parts by weight of water until the pH value of filtrate is 7-7.5 for later use;
2) weighing 90.5 parts by weight of the hydroxylated aluminum nitride blending solution, performing wet ball milling for 24 hours at the rotating speed of 2000r/min by using a sand mill, transferring the solution into a beaker, heating the solution in a water bath to 60 ℃, immediately placing the solution into a low-temperature experimental refrigerator at-28 ℃, freezing the solution for 12 hours, naturally heating the solution to room temperature, heating the solution in the water bath to 60 ℃, immediately placing the solution into the low-temperature experimental refrigerator at-28 ℃, freezing the solution for 12 hours, circularly operating the method for 5 times, treating the beaker in an ultrasonic cell crusher for 4 hours to obtain a mixed dispersion solution of aluminum nitride, performing centrifugal treatment for 10 minutes at 4000rmp, taking supernatant, vacuumizing the supernatant in a stainless steel chamber to the pressure of 0.3Pa, keeping the solution at room temperature for 10 minutes, and then taking the supernatant, cleaning and drying the supernatant to obtain a functional aluminum nitride nanosheet;
3) weighing 55 parts by weight of the prepared functionalized aluminum nitride nanosheet, dissolving the functionalized aluminum nitride nanosheet in 150 parts by weight of 25% toluene solution, dropwise adding 30 parts by weight of 65% methacrylic acid, reacting at 100-120 ℃ for 2-3 h, and performing suction filtration and drying to obtain vinyl-aluminum nitride nanosheet functionalized nanoparticles;
4) weighing 85 parts by weight of nano SiO hybridized vinyl phenyl resin, 25 parts by weight of epoxy resin, 30 parts by weight of vinyl-aluminum nitride nanosheet functionalized nanoparticles, 15 parts by weight of cyclohexanone peroxide acetone solution with the mass concentration of 6% and 70 parts by weight of carbon fiber resin based composite material in a closed heating chamber, heating to 200 ℃, introducing high-purity nitrogen while carrying out heat preservation and melting treatment for 2 hours, and naturally cooling to room temperature to obtain the prepared novel heat-conducting insulating material.
2. The heat dissipation cable of claim 1, wherein the shielding layer is a braided shielding layer of tinned copper wire.
3. The heat dissipation type cable of claim 1, wherein the sheath is a low smoke zero halogen sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810585168.1A CN108766659B (en) | 2018-06-08 | 2018-06-08 | Heat dissipation type cable |
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| CN201810585168.1A CN108766659B (en) | 2018-06-08 | 2018-06-08 | Heat dissipation type cable |
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| CN108766659B true CN108766659B (en) | 2020-05-12 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101503284B1 (en) * | 2013-12-17 | 2015-03-17 | 전자부품연구원 | Complex insulator composition with high thermal conductivity and method thereof |
| CN107043538A (en) * | 2012-07-07 | 2017-08-15 | 迪睿合电子材料有限公司 | Heat conductive sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103943228A (en) * | 2014-03-24 | 2014-07-23 | 安徽航天电缆集团有限公司 | Environment-friendly type watertight and fireproof insulated cable |
| CN104835583A (en) * | 2015-03-25 | 2015-08-12 | 安徽幸福电器电缆有限公司 | Shielding insulating cable |
| CN204834150U (en) * | 2015-08-31 | 2015-12-02 | 广东吉青电缆实业有限公司 | Heat dissipation type middling pressure power cable |
| CN204991225U (en) * | 2015-10-10 | 2016-01-20 | 深圳市申朗讯电气电缆有限公司 | Adopt nanocomposite's wear -resisting heat -resisting cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107043538A (en) * | 2012-07-07 | 2017-08-15 | 迪睿合电子材料有限公司 | Heat conductive sheet |
| KR101503284B1 (en) * | 2013-12-17 | 2015-03-17 | 전자부품연구원 | Complex insulator composition with high thermal conductivity and method thereof |
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Effective date of registration: 20200416 Address after: Keyuan street Shanghe County Economic Development Zone of Ji'nan City, Shandong province 250300 Applicant after: JINAN MASHIJI INTELLIGENT ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 221000 Jiangsu city of Xuzhou province Xuzhou high tech Industrial Development Zone, Second Industrial Park, Qianjiang Road No. 23 Applicant before: XUZHOU LETAI MECHANICAL AND ELECTRIC TECHNOLOGY Co.,Ltd. |
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Denomination of invention: a heat-dissipating cable Effective date of registration: 20220920 Granted publication date: 20200512 Pledgee: Ji'nan finance Company limited by guarantee Pledgor: JINAN MASHIJI INTELLIGENT ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2022980015561 |
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