CN103745772B - Phase transformation temp auto-controlled shielded cable - Google Patents
Phase transformation temp auto-controlled shielded cable Download PDFInfo
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- CN103745772B CN103745772B CN201310739853.2A CN201310739853A CN103745772B CN 103745772 B CN103745772 B CN 103745772B CN 201310739853 A CN201310739853 A CN 201310739853A CN 103745772 B CN103745772 B CN 103745772B
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- 230000009466 transformation Effects 0.000 title claims abstract description 24
- 239000012782 phase change material Substances 0.000 claims abstract description 61
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 229920002521 macromolecule Polymers 0.000 claims abstract description 18
- 229920000728 polyester Polymers 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000000977 initiatory effect Effects 0.000 abstract description 3
- 239000012071 phase Substances 0.000 description 25
- 239000000463 material Substances 0.000 description 23
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005504 petroleum refining Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Abstract
A kind of phase transformation temp auto-controlled shielded cable, adopt the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fill low-temperature phase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control; It has solved a difficult problem for traditional cable temperature rise, can elevate the temperature by self-heating, thereby cause cable life to shorten while having overcome cable load, and equipment failure rate increases, the defect of the harmfulness such as easy initiation fire; It integrates properties of product, technique, resource, energy consumption, environmental protection, is worth to vast social recommendation, is worth especially to high automation control appliance recommendation; It is applicable to mechanization, higher, high-power, the high electric current operating mode of automatic technology cable; Be particularly suitable for the temperature rises such as cable testing bridge, control room, switch board higher establish cable in stock; While is also suitable for high electric current of moment, intermittent load causes heating and the large situation cable of variation of ambient temperature.
Description
Technical field
The present invention relates to a kind of phase transformation temp auto-controlled shielded cable.
Background technology
Cable is normally by several or array wire, the cable of at least two every group stranded similar ropes that form, every group of wire itBetween mutually insulated, and be often twisted into round Yi Gen center, whole outside is surrounded by the cover layer of high-insulation.
Due to the raising of China's mechanization, automatic technology, high-power, high electric current operating mode makes cable, cable testing bridge, control roomOr switch board temperature rise is higher and be difficult to control, thereby shorten cable service life, increased that equipment fault and fire causeDanger, the control cables that simultaneously Institute of Automation uses, the impact that signal cable is subject to temperature and make distorted signals.
The existing disposal options of taking for an above-mentioned difficult problem: using air-conditioning temperature-reducing is main settling mode, but this cooling method existsMany defects: the one, cost is high and need outside acting, and the 2nd, energy loss is larger, and the 3rd, Existential Space restricted problem, the 4th, dirtyDye environment.
Summary of the invention
For above-mentioned situation, the object of the present invention is to provide a kind of phase transformation temp auto-controlled shielded cable, it can be to self mistake momentCarry and causing that heating carries out phase transformation from cooling, can cause that heating carries out phase transformation from cooling to intermittently overload and load again, go back cost,Without outside acting, Non-energy-consumption loss, without spatial limitation, and environmentally safe.
To achieve these goals, a kind of phase transformation temp auto-controlled shielded cable, it comprises central core, sheath and outer jacket, described inCentral core, by stranded the forming of several shielding insulation lines, is filled phase-change material in its stranded gap; Shielding insulation line is by conductor, insulationLayer, internal shield composition, described sheath is arranged on central core outside, it comprise wrapped interior polyester belt outside central core,Be arranged on the external shielding layer on interior polyester belt and be arranged on the phase-change material layers on external shielding layer surface; Described outer jacket settingIn sheath outside, it comprises the wrapped outer polyester belt on high-temperature macromolecule phase-change material layers surface, is arranged on outer polyester beltThe restrictive coating on surface.
For implementation structure, effect optimization, its further step is:
Described internal shield, external shielding layer are shielding layer of copper wires.
Described shielding insulation line is four.
Described phase-change material layers is high-temperature macromolecule phase-change material layers.
Described phase-change material is low-temperature phase-change material.
Described restrictive coating is PVC restrictive coating.
A kind of phase transformation temp auto-controlled shielded cable of the present invention, it by filling low temperature phase change material in the stranded gap of shielding insulation lineExpect, the technical solution of high-temperature macromolecule phase-change material layers is set on external shielding layer surface, and its key is to apply different phase transformationsThe phase-change material of temperature is satisfied level temperature control to cable: 1. normally in service when cable, the spontaneous heating of cable makes cable temperature higher than lowWhen the phase transition temperature of temperature phase-change material, phase-change material heat absorption produces solid-solid phase change, and temperature is kept, and no longer raises; 2. ought establishStandby load reduces, or environment temperature drops to while being less than phase transition temperature, and phase-change material carries out inverse process and emits waste heat; 3. work as cableWhen overload or length, operation and low-temperature phase-change material have completed after whole phase transformations, and temperature will restart to raise, when temperature is higher than high temperatureWhen macromolecular material phase-change material, high temperature phase change material (pcm) carries out temperature control with low-temperature phase-change material identical process; It has solved traditional electricalA difficult problem for cable temperature rise, can elevate the temperature by self-heating while having overcome cable load, thereby causes cable shortening in service life, establishesStandby fault rate increases frequently, the Dangerous defects such as easy initiation fire.
The beneficial effect that the present invention produced compared to existing technology:
(I) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Solve preferably cable spontaneous heating difficult problem when cable normally moves;
(II) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Excite the temp auto-controlled function of cable, thoroughly rewritten the history that adopts air-conditioning temperature-reducing, saved large quantity of material and human resources;
(III) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Phase-change material used is selected petroleum refining material, and in conjunction with best production technology of the present invention, cost is low, be not oxidized, non-volatile,Do not decompose, cable extends service life greatly, stable and reliable for performance;
(IV) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Phase-change material used is selected petroleum refining material, and in conjunction with best production technology of the present invention, adaptability is good, can with various water-baseds,Oiliness, powder systems are mixed, and comprise that various weavings safeguard liquid, coating, paint, mortar, plastics, rubber etc.;
(V) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Phase-change material used is selected petroleum refining material, in conjunction with best production technology of the present invention, water-fast, high temperature resistant, uses for a long time nothingLeak;
(VI) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Phase-change material used is selected petroleum refining material, in conjunction with best production technology of the present invention, has eliminated easy initiation fire harmfulnessDefect;
(VII) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Phase-change material used is selected petroleum refining material, in conjunction with best production technology of the present invention, in the phase transition temperature scope of phase-change materialIn, absorb, store, discharge more heat, there is the effect of bidirectional modulation environment temperature, store heat, its waste heat obtainsMake full use of, eliminated the defect that easily causes environmental pollution while discharging waste heat;
(VIII) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Phase-change material used is selected petroleum refining material, in conjunction with best production technology of the present invention, provides a high thermal conductivity and low-heatThe premium quality product that impedance operator and fault rate reduce;
(IX) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;Its cost, technique be simple and easy, without outside acting, Non-energy-consumption loss, without spatial limitation, and environmentally safe;
(X) the present invention adopts the reciprocal heat transfer theory of low and high temperature phase-change material, in the stranded gap of shielding insulation line, fills low temperaturePhase-change material, external shielding layer surface arranges high-temperature macromolecule phase-change material layers, cable is satisfied to the technical solution of level temperature control;It integrates properties of product, technique, resource, energy consumption, environmental protection, and being worth, to vast social recommendation, is worth especially to heightAutomation control appliance recommendation.
The present invention is applicable to mechanization, automatic technology is higher, high-power, high electric current operating mode cable; Be particularly suitable for cable testing bridge,What the temperature rise such as control room, switch board was higher establishes cable in stock; Also be suitable for simultaneously high electric current of moment, intermittent load cause heating andThe situation cable that variation of ambient temperature is large.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure: 1, conductor, 2, insulating barrier, 3, internal shield, 4, phase-change material, 5, outer polyester belt, 6, phase transformation materialThe bed of material, 7, restrictive coating, 8, external shielding layer, 9, interior polyester belt, L, shielding insulation line, A, central core, B, sheath,C, outer jacket.
Detailed description of the invention
Structure, principle of control temperature and its functional characteristics of phase transformation temp auto-controlled shielded cable of the present invention are provided by reference to the accompanying drawings.
I, provide one to cause that heating carries out phase transformation from cooling cable to self, intermittently overload and load moment.
For the higher cable of temperature rise, as cable for control room, switch board, cable testing bridge etc., present embodiment application phase transformation materialMaterial in cable cabling gap and sheath fills and extrude, in the time of electric cable heating temperature rise, phase-change material produces solid-solid phase-change absorptionA large amount of heat, ensures that cable temperature is constant in a value, and this value is different and different according to phase-change material, and then reaches temperature control object,Solve the problem of cable temperature rise; This cable is also applicable to high electric current of moment simultaneously, intermittent load causes that heating and environment temperature becomeChange large situation; Phase transformation temp auto-controlled shielded cable comprises central core A, sheath B and outer jacket C, and described central core A is by fourStranded the forming of shielding insulation line L, fills low-temperature phase-change material 4 in its stranded gap; Shielding insulation line L is by conductor 1, insulating barrier2, the internal shield 3 of copper wire material forms, and described sheath B is arranged on central core A outside, and it comprises wrapped at central core AOuter interior polyester belt 9, be arranged on the external shielding layer 8 of the copper wire material on interior polyester belt 9 and be arranged on external shielding layer 8The high-temperature macromolecule phase-change material layers 6 on surface; Described outer jacket C is arranged on sheath B outside, and it comprises wrapped high at high temperatureThe outer polyester belt 5 on molecule phase-change material layers 6 surfaces, be arranged on the PVC restrictive coating 7 on outer polyester belt 5 surfaces. Phase transformation usedMaterial selection petroleum refining material, in conjunction with best production technology of the present invention, can guarantee the quality of its product.
II, for ensure cable service life, safety and signal true and reliable-it applies the phase-change material pair of different phase transition temperaturesCable is level temperature control then.
Concrete temperature control process: 1. when cable is normally in service, the spontaneous heating of cable makes cable temperature higher than low-temperature phase-change materialWhen phase transition temperature, phase-change material heat absorption produces solid-solid phase change, and temperature is kept, and no longer raises; 2. work as apparatus of load and reduce,Or environment temperature drops to while being less than phase transition temperature, phase-change material carries out inverse process and emits waste heat; 3. when cable overload or long luckRow and low-temperature phase-change material have completed after whole phase transformations, and temperature will restart to raise, when temperature is higher than high-temperature macromolecule phase transformation materialWhen material, high temperature phase change material (pcm) carries out temperature control with low-temperature phase-change material identical process.
The functional characteristics of III, phase transformation temp auto-controlled shielded cable.
The present invention adopts phase transformation temp auto-controlled mode, compared with traditional application air-conditioning temperature-reducing: and cost, without outside acting,Non-energy-consumption loss, without spatial limitation, pollution-free, it integrates properties of product, technique, resource, energy consumption, environmental protection, is worthTo vast social recommendation, be worth especially to high automation control appliance recommendation.
To sum up, show and described general principle of the present invention, principal character and advantage; The technical staff of the industry should understand,The present invention is not restricted to the described embodiments, and that in above-described embodiment and description, describes just illustrates principle of the present invention, notUnder the prerequisite of disengaging spirit and scope of the invention, the present invention also has various changes and modifications, and these changes and improvements all fall into requirementIn the scope of the invention of protection; The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. a phase transformation temp auto-controlled shielded cable, is characterized in that it comprises central core (A), sheath (B) and outer jacket (C), and described central core (A), by stranded the forming of several shielding insulation lines (L), is filled low-temperature phase-change material (4) in its stranded gap; Shielding insulation line (L) is made up of conductor (1), insulating barrier (2), internal shield (3), described sheath (B) is arranged on central core (A) outside, and it comprises wrapped interior polyester belt (9) outside central core (A), is arranged on the external shielding layer (8) on interior polyester belt (9) and is arranged on the high-temperature macromolecule phase-change material layers (6) on external shielding layer (8) surface; Described outer jacket (C) is arranged on sheath (B) outside, and it comprises the wrapped outer polyester belt (5) on high-temperature macromolecule phase-change material layers (6) surface, is arranged on the restrictive coating (7) on outer polyester belt (5) surface.
2. a kind of phase transformation temp auto-controlled shielded cable according to claim 1, is characterized in that described internal shield (3), external shielding layer (8) are shielding layer of copper wires.
3. a kind of phase transformation temp auto-controlled shielded cable according to claim 1, is characterized in that described shielding insulation line (L) is four.
4. a kind of phase transformation temp auto-controlled shielded cable according to claim 1, is characterized in that described restrictive coating (7) is PVC restrictive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739853.2A CN103745772B (en) | 2013-12-29 | 2013-12-29 | Phase transformation temp auto-controlled shielded cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739853.2A CN103745772B (en) | 2013-12-29 | 2013-12-29 | Phase transformation temp auto-controlled shielded cable |
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| Publication Number | Publication Date |
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| CN103745772A CN103745772A (en) | 2014-04-23 |
| CN103745772B true CN103745772B (en) | 2016-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3249658A3 (en) * | 2016-05-24 | 2018-03-28 | Yazaki Systems Technologies GmbH | Vehicle wiring harness, assembly comprising such a vehicle wire harness and method |
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| CN104036866A (en) * | 2014-06-27 | 2014-09-10 | 国家电网公司 | Phase-change temperature-control type high-voltage cable |
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| CN110828045A (en) * | 2018-08-07 | 2020-02-21 | 广东天虹电缆有限公司 | Phase-change temperature-control high-voltage cable |
| FR3094131B1 (en) | 2019-03-20 | 2021-09-03 | Commissariat Energie Atomique | Cable for conducting an electric current comprising a phase change material |
| CN110379567B (en) * | 2019-07-31 | 2021-02-19 | 福建礼恩科技有限公司 | Preparation method of constant-temperature cable |
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| CN110890170B (en) * | 2019-11-11 | 2021-04-27 | 昆明明超电缆有限公司 | Environment-friendly cable with strong brittleness resistance for low-temperature environment |
| CN118762881B (en) * | 2024-08-30 | 2025-01-21 | 金刚电缆实业有限公司 | A production method and device for heat-resistant cross-linked polyethylene control cable |
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| CN103745772A (en) | 2014-04-23 |
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