CN210837259U - Novel copper core copper sheath mineral insulated cable - Google Patents
Novel copper core copper sheath mineral insulated cable Download PDFInfo
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- CN210837259U CN210837259U CN201922290864.2U CN201922290864U CN210837259U CN 210837259 U CN210837259 U CN 210837259U CN 201922290864 U CN201922290864 U CN 201922290864U CN 210837259 U CN210837259 U CN 210837259U
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 39
- 239000011707 mineral Substances 0.000 title claims abstract description 39
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 21
- 239000010949 copper Substances 0.000 title claims abstract description 21
- 239000005030 aluminium foil Substances 0.000 claims abstract description 8
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 8
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910002114 biscuit porcelain Inorganic materials 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 239000010445 mica Substances 0.000 claims abstract description 6
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 6
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 5
- 239000000454 talc Substances 0.000 claims abstract description 4
- 229910052623 talc Inorganic materials 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 3
- 235000012222 talc Nutrition 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 241001251094 Formica Species 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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Abstract
The utility model provides a novel copper core copper sheath mineral insulated cable, including a plurality of cable core, the cable core includes conductor and insulating layer, the outside of cable core is provided with the filling layer, around the covering, mineral insulating layer and copper sheath, the cable core includes two central cable cores and two biasing cable core groups, be provided with the support cover of "8" font between two central cable cores, the outside of central cable core and support cover is provided with first filling layer, the outside of first filling layer is provided with the aluminium foil layer, the biasing cable core distributes in the aluminium foil layer outside, be provided with the second filling layer between the biasing cable core, the outside of second filling layer has set gradually firstly around covering, mineral insulating layer, second around covering, ceramic silicon rubber layer and sheath, the mineral insulating layer includes mica bisque, talcum bisque and magnesium oxide bisque. The cable is convenient to install, can be directly laid, can be produced continuously, and is long in service life, good in flame retardance and fire resistance, high in tensile strength, high in safety performance, high-temperature resistant, corrosion resistant, environment-friendly and pollution-free.
Description
Technical Field
The utility model belongs to the technical field of power cable, especially, relate to a novel copper core copper sheath mineral insulated cable.
Background
The mineral insulated cable can be divided into a rigid mineral insulated cable and a flexible mineral insulated cable, and is also called as a fireproof cable at home. The mineral insulated cable generally adopts annealed copper as a conductor, dense magnesium oxide as insulation and a metal sleeve as a sheath, and a layer of polyolefin (low smoke and zero halogen) sheath can be added outside on occasions where the metal sheath cannot be exposed under specific requirements. The metal sheath mineral insulated cable has the characteristics of excellent fireproof performance, long continuous length, large section, no smoke and toxicity during combustion, high overload capacity and corrosion resistance.
Existing cables are typically rope-like cables stranded with several or groups of wires (at least two per group) for communication or power transmission. Specifically, the copper-sheathed cable comprises a conductor, an insulating layer, a filling layer, a wrapping layer, a mineral insulating layer and a copper sheath. However, the problem exists that the softening effect of the mineral insulating layer and the copper sheath enables the whole cable to have good flexibility but insufficient strength and poor tensile strength, so that the cable is easy to deform in length, and the electrical property and the service life of the cable are influenced; secondly, the physical properties of the mineral insulation layer need to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem that foretell cable exists, provide a reasonable in design, simple structure, a novel copper core copper sheath mineral insulated cable.
In order to achieve the purpose, the utility model discloses a technical scheme do, the utility model provides a pair of novel copper core copper sheath mineral insulated cable, including a plurality of cable core, the cable core includes conductor and insulating layer, the outside of cable core is provided with the filling layer, around covering, mineral insulating layer and sheath, the cable core includes the central cable core of two radial symmetries and the biasing core group of two symmetric distributions, is provided with between two central cable cores and supports the cover, it is "8" font to support the cover, the outside of central cable core and support cover is provided with first filling layer, the outside of first filling layer is provided with the aluminium foil layer, biasing core group distributes in the aluminium foil layer outside, the inside second filling layer that is provided with of biasing core group, the outside of second filling layer has set gradually first around covering, mineral insulating layer, second filling layer, The mineral insulating layer comprises a mica powder layer, a talc powder layer and a magnesium oxide powder layer which are arranged inside and outside, and the sheath is a copper sheath.
Preferably, the cross section of the aluminum foil layer is oval, the offset cable core group at least comprises five offset cable cores distributed along the outer circular surface of the aluminum foil layer, and the diameters of the five offset cable cores are gradually increased from two ends to the middle.
Preferably, the radius of curvature of the end of the support sleeve is smaller than the diameter of the central cable core.
Preferably, the material of the filling layer is talcum powder.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
the utility model provides a pair of novel copper core copper sheath mineral insulated cable adopts the structure of central cable core and biasing cable core, in addition supports the guard action of cover, has effectively improved the tensile strength of cable to better pliability has, and better insulating fire-resistant effect. This device simple to operate can directly lay and need not the poling, sustainable production, and longe-lived, the fire resistance is good, and low cigarette, zero halogen, nontoxic, the security performance is high, and operating temperature is high, and the current-carrying capacity is big, and the ageing resistance, mechanical strength is high, and the radiation protection is explosion-proof, and is waterproof, protection against rodents ant, good moisture resistance, high temperature resistant, corrosion-resistant, the environmental protection is pollution-free.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a novel copper core and copper sheath mineral insulated cable provided by an embodiment;
in the above figures, 1, cable core; 11. a conductor; 12. an insulating layer; 13. a central cable core; 14. biasing the cable core; 2. a filling layer; 21. a first filling layer; 22. a second filling layer; 3. wrapping a covering; 31. a first lapping layer; 32. a second lapping layer; 4. a mineral insulation layer; 41. a mica powder layer; 42. a talc powder layer; 43. a magnesium oxide layer; 5. a sheath; 6. a silicon rubber layer is ceramic; 7. a support sleeve; 8. an aluminum foil layer.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.
Embodiment, as shown in fig. 1, the utility model provides a pair of novel copper core copper sheath mineral insulated cable, including a plurality of cable core, cable core 1 includes conductor 11 and insulating layer 12, and cable core 1's outside is provided with filling layer 2, around covering 3, mineral insulating layer 4 and sheath 5. On this basis, the utility model discloses the distribution form to the cable core and the structure of mineral insulation layer propose the improvement to this tensile strength and the insulating effect that improves cable itself.
Specifically, the utility model provides a cable core includes the central cable core 13 of two radial symmetries and the biasing cable core group of two symmetric distributions, be provided with between two central cable cores 13 and support cover 7, support cover 7 and be "8" font, central cable core 13 is provided with first filling layer 21 with the outside of supporting cover 7, the outside of first filling layer 21 is provided with aluminium foil layer 8, biasing cable core group distributes in the 8 outsides of aluminium foil layer, biasing cable core group inside is provided with second filling layer 22, the outside of second filling layer 22 has set gradually firstly around covering 31, mineral insulating layer 4, the second is around covering 32, pottery silicon rubber layer and sheath, mineral insulating layer 4 includes the mica bisque 41 of inside and outside setting, talc bisque 42 and magnesium oxide bisque 43, sheath 5 is the copper sheath. The first and second filling layers 21 and 22 may be made of the same filler or different fillers. The central cable core 13 is used as the main part of the whole cable core, the offset cable core 13 is used as the supplement part of the cable core and still has good electrical performance, the offset cable core 14 can play a role in dispersing external pressure, and the support sleeve 7 plays a role in supporting a framework between the central cable core and the offset cable core, so that the tensile strength of the cable is improved, the deflection of the central cable core can be prevented in the production process, and the production efficiency is improved. The ceramic silicon rubber layer 6 has the characteristics of excellent fire resistance, flame retardance, low smoke, no toxicity and the like, and the extrusion molding process is simple.
Furthermore, the mineral insulating layer 4 provided by the device adopts three different powder materials, so that the insulating effect is changed in a step mode, the insulating capability of materials at all levels can be exerted to the maximum extent, the cost of the cable can be reduced, for example, the cost of the mica powder, the talcum powder and the magnesium oxide powder which are combined is much lower than that of pure magnesium oxide for the mineral insulating layer 4 with the same thickness, and the talcum powder has excellent physical and chemical properties such as lubricating property, anti-sticking property, flow aid, fire resistance, acid resistance, insulating property, high melting point, chemical inactivity, good covering power, softness, good gloss, strong adsorption power and the like. Above all, talc is advantageous to ensure the combined density of the mineral insulation layer 4. The first wrapping layer 31 can provide larger adhesive force for mica powder, and is favorable for reducing the production difficulty; the second around covering 32 not only can play good constraint effect to mineral insulation layer, can also play waterproof and fire-retardant effect. Adopt the copper sheathing to make whole cable have the advantage of metal sheath cable, can directly lay and need not the poling if simple to operate, sustainable production, longe-lived, shielding capacity is strong, and mechanical strength is high, and is high temperature resistant, corrosion-resistant, the environmental protection is pollution-free.
In order to improve tensile and compressive strength of cable, the utility model provides an aluminum foil layer 8's cross-section is oval, and biasing cable core group includes five biasing cable cores 14 that distribute along the outer disc of aluminum foil layer at least to five biasing cable cores 14's diameter is by both ends grow gradually to the centre. The aluminum foil layer 8 serves as a wrapping layer of the first filling layer 31 and the central cable core 13, and not only plays a role in shaping, but also plays a role in shielding. The aluminum foil layer 8, the first filling layer 21 and the central cable core 13 are oval in cross section, and the compression resistance of the end part of the supporting sleeve and the characteristic of anisotropic stress of the offset cable core are added, so that the cable has good tensile strength and compressive strength, the electrical performance of the cable is kept, and the effective service life of the cable is prolonged.
In order to improve the resistance to compression effect of supporting cover 7, the utility model provides a curvature radius of supporting the cover tip is less than the radius of central cable core, makes to form sufficient packing gap between its tip and the central cable core 13, nevertheless can guarantee that central cable core does not break away from the working face for first filling layer 21 provides the packing base face, not only prevents that central cable core from deflecting, and effectual resistance to compression is whole moreover, is favorable to improving the compressive capacity of cable.
Further, the utility model provides a 2 materials on filling layer are the talcum powder, and the talcum powder has lubricity, anti glutinous, flow aid, fire resistance, acid resistance, insulating nature, high melting point, chemical inactive, covering power is good, soft, gloss is good, good physical, chemical properties such as adsorption affinity are strong. The talcum powder is utilized to ensure that the first filling layer, the supporting sleeve and the central cable core have higher integrity, and the pressure resistance is better, thereby being beneficial to prolonging the effective service life of the cable.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a novel copper core copper sheath mineral insulated cable, includes a plurality of cable core, the cable core includes conductor and insulating layer, the outside of cable core is provided with the filling layer, around covering, mineral insulating layer and sheath, a serial communication port, the cable core includes the central cable core of two radial symmetries and the bias cable core group of two symmetric distributions, is provided with between two central cable cores and supports the cover, it is "8" font to support the cover, the outside of central cable core and support cover is provided with first filling layer, the outside of first filling layer is provided with the aluminium foil layer, bias cable core group distributes in the aluminium foil layer outside, the inside second filling layer that is provided with of bias cable core group, the outside of second filling layer has set gradually first around covering, mineral insulating layer, second around covering, pottery silicon rubber layer and sheath, the mineral insulating layer includes the inside and outside mica bisque layer that sets up, Talc powder layer and magnesium oxide powder layer, the sheath is the copper sheath.
2. The novel copper core and copper sheath mineral insulated cable of claim 1, wherein the cross section of the aluminum foil layer is oval, the offset cable core group at least comprises five offset cable cores distributed along the outer circular surface of the aluminum foil layer, and the diameters of the five offset cable cores are gradually increased from two ends to the middle.
3. The novel copper core and copper sheath mineral insulated cable of claim 2, wherein the radius of curvature of the end of the support sheath is smaller than the diameter of the central core.
4. The new copper core and copper sheath mineral insulated cable of claim 3, wherein the filler layer material is talc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922290864.2U CN210837259U (en) | 2019-12-19 | 2019-12-19 | Novel copper core copper sheath mineral insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922290864.2U CN210837259U (en) | 2019-12-19 | 2019-12-19 | Novel copper core copper sheath mineral insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210837259U true CN210837259U (en) | 2020-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922290864.2U Active CN210837259U (en) | 2019-12-19 | 2019-12-19 | Novel copper core copper sheath mineral insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210837259U (en) |
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2019
- 2019-12-19 CN CN201922290864.2U patent/CN210837259U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A New Type of Copper Core Copper Sheath Mineral Insulated Cable Effective date of registration: 20230423 Granted publication date: 20200623 Pledgee: Liaocheng Branch of Postal Savings Bank of China Co.,Ltd. Pledgor: Liaocheng Zhengsheng Cable Co.,Ltd. Registration number: Y2023980038766 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200623 Pledgee: Liaocheng Branch of Postal Savings Bank of China Co.,Ltd. Pledgor: Liaocheng Zhengsheng Cable Co.,Ltd. Registration number: Y2023980038766 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new type of copper core copper sheathed mineral insulated cable Granted publication date: 20200623 Pledgee: Liaocheng Branch of Postal Savings Bank of China Co.,Ltd. Pledgor: Liaocheng Zhengsheng Cable Co.,Ltd. Registration number: Y2024980020776 |