CN215377004U - Low-abrasion frequency conversion cable - Google Patents
Low-abrasion frequency conversion cable Download PDFInfo
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- CN215377004U CN215377004U CN202121855289.7U CN202121855289U CN215377004U CN 215377004 U CN215377004 U CN 215377004U CN 202121855289 U CN202121855289 U CN 202121855289U CN 215377004 U CN215377004 U CN 215377004U
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- variable frequency
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- 238000005299 abrasion Methods 0.000 title claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 title abstract description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 8
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 8
- 230000006978 adaptation Effects 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 238000005253 cladding Methods 0.000 claims description 7
- 229920002313 fluoropolymer Polymers 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 2
- 239000004020 conductor Substances 0.000 abstract description 10
- 238000001125 extrusion Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 38
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
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Abstract
The utility model discloses a low-abrasion frequency conversion cable which comprises a cable core consisting of three main wire cores and three zero wire cores, wherein the main wire cores and the zero wire cores are formed by twisting rare earth aluminum alloy rods, the three main wire cores are separated by a supporting frame, every two of the three main wire cores are arranged in a tangent mode, the three zero wire cores are separated by the supporting frame, and every two of the three zero wire cores are arranged in a tangent mode; the support frame includes that the inner arc side respectively with three first arc of main line core adaptation and inner arc side respectively with three second arc of zero line core adaptation, three two double-phase fixed connection of outer arc side of first arc, adjacent two still be fixed with between the first arc the second arc. According to the low-abrasion variable frequency cable with the structure, the rare earth aluminum alloy conductor is adopted, so that the electric conductivity and the creep resistance of the cable conductor are improved, and the mutual abrasion among the wire cores during extrusion is avoided by separating the wire cores through the supporting frame.
Description
Technical Field
The utility model relates to a cable technology, in particular to a low-abrasion variable frequency cable.
Background
With the rapid development of the power industry, the variable frequency cable can be applied to more and more fields, such as occasions with higher requirements on safety and reliability, such as subways, nuclear power stations, markets, hospitals, intelligent buildings and the like, due to the characteristics of high transmission rate, small line loss, convenience in current regulation and transmission direction change, low installation and maintenance cost and the like.
The cables in the existing market basically adopt copper wires as conductors, so that the following problems exist: the wire cores are easy to wear mutually under the extrusion condition; the cable is high in cost, heavy in weight, inconvenient to install and use, and very hard to move for operators, and the moving process can damage the insulating protective layer of the cable, so that the performance of resisting electromagnetic pulses is poor, and electromagnetic interference can be generated in practical application.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-abrasion variable frequency cable, which improves the electric conductivity and the creep resistance of a cable conductor by adopting a rare earth aluminum alloy conductor, and avoids mutual abrasion among wire cores during extrusion by separating the wire cores through a supporting frame.
In order to achieve the purpose, the utility model provides a low-abrasion frequency conversion cable which comprises a cable core consisting of three main wire cores and three zero wire cores, wherein the main wire cores and the zero wire cores are formed by twisting rare earth aluminum alloy rods, the three main wire cores are separated by a supporting frame, every two main wire cores are arranged in a tangent mode, the three zero wire cores are separated by the supporting frame, and every two zero wire cores are arranged in a tangent mode;
the support frame includes that the inner arc side respectively with three first arc of main line core adaptation and inner arc side respectively with three second arc of zero line core adaptation, three two double-phase fixed connection of outer arc side of first arc, adjacent two still be fixed with between the first arc the second arc.
Preferably, the insulating layer is extruded on the outer side of the zero line core and the outer side of the main line core, and the insulating layer is made of fluoroplastic.
Preferably, the insulating layer is wrapped with a shielding layer, and the shielding layer is a copper strip.
Preferably, the outer side of the cable core is sequentially coated with an aluminum-plastic composite tape longitudinal covering layer, an inner sheath layer, a steel tape armor and an outer sheath layer.
Preferably, the inner side of the longitudinal cladding layer of the aluminum-plastic composite belt is filled with fillers.
Preferably, the longitudinal covering layer of the aluminum-plastic composite belt comprises an aluminum-plastic composite belt and a non-woven fabric which are wrapped inside and outside in sequence.
Preferably, the outer sheath layer is made of polyvinyl chloride.
Preferably, the outside of oversheath layer still cladding has the abrasionproof layer that is used for reducing wearing and tearing when removing, tear line has been sewed up to the axial side of abrasionproof layer.
Preferably, the abrasion-proof layer is made of rubber.
Therefore, the low-abrasion variable frequency cable adopting the structure improves the electric conductivity and the creep resistance of the cable conductor by adopting the rare earth aluminum alloy conductor, and avoids mutual abrasion among the wire cores during extrusion by separating the wire cores through the supporting frame.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural diagram of a low-abrasion frequency conversion cable according to an embodiment of the present invention.
Wherein: 1. a support frame; 10. a first arc-shaped plate; 11. a second arc-shaped plate; 2. a cable core; 20. a neutral core; 21. a main wire core; 3. an inner jacket layer; 4. steel tape armoring; 5. an outer jacket layer; 6. an anti-wear layer; 7. the aluminum-plastic composite belt longitudinal cladding; 8. an insulating layer; 9. and a shielding layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
Fig. 1 is a schematic structural diagram of a low-wear frequency conversion cable according to an embodiment of the present invention, and as shown in fig. 1, the structure of the present invention includes a cable core 2 composed of three main wire cores 21 and three zero wire cores 20, where the main wire cores 21 and the zero wire cores 20 are formed by twisting rare earth aluminum alloy rods, the three main wire cores 21 are separated by a support frame 1, and two of the three main wire cores 21 are arranged in a tangent manner, and the three zero wire cores 20 are separated by the support frame 1, and two of the three zero wire cores 20 are arranged in a tangent manner; the supporting frame 1 comprises three first arc-shaped plates 10 with inner arc sides respectively matched with the three main wire cores 21 and three second arc-shaped plates 11 with inner arc sides respectively matched with the three zero wire cores 20, every two outer arc sides of the three first arc-shaped plates 10 are fixedly connected, the second arc-shaped plates 11 are further fixed between every two adjacent first arc-shaped plates 10, the first arc-shaped plates 10 and the second arc-shaped plates 11 in the embodiment are both major arcs, namely three main wire cores 21 are centrosymmetric, three zero wire cores 20 are centrosymmetric, the electromagnetic interference can be effectively reduced, then, an insulating layer 8 is extruded on the conductor, the insulating layer 8 is made of fluoroplastic materials, the fluoroplastic materials are small in density, have certain insulativity and good ductility, also have good thermal aging performance and strong voltage impact resistance, can withstand pulse voltage during high-speed frequent frequency conversion, and prolong the service life of the cable.
Preferably, the insulating layer 8 is extruded on the outer side of the zero wire core 20 and the outer side of the main wire core 21, the insulating layer 8 is made of fluoroplastic, and the fluoroplastic material has high chemical stability, excellent physical and mechanical properties, good aging resistance and good cable insulation performance.
Preferably, the insulating layer 8 is wrapped with a shielding layer 9, and the shielding layer 9 is a copper tape, so that the cable has a good shielding performance, electromagnetic waves are well inhibited from being emitted to the outside, and the stability of system operation is further improved.
Preferably, the outer side of the cable core 2 is sequentially coated with an aluminum-plastic composite tape longitudinal cladding layer 7, an inner sheath layer 3, a steel tape armor 4 and an outer sheath layer 5. Preferably, the inner side of the longitudinal cladding layer 7 of the aluminum-plastic composite tape is filled with filler. Preferably, the aluminum-plastic composite tape longitudinal covering layer 7 comprises an aluminum-plastic composite tape and a non-woven fabric which are wrapped inside and outside in sequence. Preferably, the outer sheath layer 5 is made of polyvinyl chloride, and the cross-linked polyvinyl chloride has good pressure resistance and corrosion resistance, can be bent at will without brittle fracture, and has high creep strength.
Preferably, the outer side of the outer sheath layer is further coated with an anti-abrasion layer 6 for reducing abrasion during movement, and a tear line is sewn on the axial side of the anti-abrasion layer 6. The anti-abrasion layer 6 is made of rubber, so that the cable is prevented from being directly abraded during moving, and the anti-abrasion layer can be peeled off by tearing and tearing the tear line after moving, so that the influence on the cable is avoided.
Therefore, the low-abrasion variable frequency cable adopting the structure improves the electric conductivity and the creep resistance of the cable conductor by adopting the rare earth aluminum alloy conductor, and avoids mutual abrasion among the wire cores during extrusion by separating the wire cores through the supporting frame.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the utility model without departing from the spirit and scope of the utility model.
Claims (9)
1. The utility model provides a low wearing and tearing variable frequency cable, includes the cable core of constituteing by three main line cores and three zero line cores, its characterized in that: the main wire cores and the zero wire cores are formed by twisting rare earth aluminum alloy rods, the three main wire cores are separated by a supporting frame, every two of the three main wire cores are arranged in a tangent mode, the three zero wire cores are separated by the supporting frame, and every two of the three zero wire cores are arranged in a tangent mode;
the support frame includes that the inner arc side respectively with three first arc of main line core adaptation and inner arc side respectively with three second arc of zero line core adaptation, three two double-phase fixed connection of outer arc side of first arc, adjacent two still be fixed with between the first arc the second arc.
2. A low-wear variable frequency cable according to claim 1, wherein: the outside of zero line core with the outside of main line core is all extruded and is had the insulating layer, the material of insulating layer is fluoroplastics.
3. A low-wear variable frequency cable according to claim 2, wherein: and a shielding layer is wound and wrapped outside the insulating layer, and the shielding layer is a copper strip.
4. A low-wear variable frequency cable according to claim 1, wherein: and the outer side of the cable core is sequentially coated with an aluminum-plastic composite tape longitudinal covering layer, an inner sheath layer, a steel tape armor and an outer sheath layer.
5. A low-wear variable frequency cable according to claim 4, wherein: the inner side of the longitudinal cladding layer of the aluminum-plastic composite belt is filled with fillers.
6. A low-wear variable frequency cable according to claim 4, wherein: the aluminum-plastic composite belt longitudinal covering layer comprises an aluminum-plastic composite belt and non-woven fabric which are wrapped inside and outside in sequence.
7. A low-wear variable frequency cable according to claim 4, wherein: the outer sheath layer is made of polyvinyl chloride.
8. A low-wear variable frequency cable according to claim 4, wherein: the outside of oversheath layer still the cladding has the abrasionproof that is used for reducing wearing and tearing when removing and decreases the layer, the axial side seam of abrasionproof decreases the layer has tears the line.
9. A low-wear variable frequency cable according to claim 8, wherein: the anti-abrasion layer is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121855289.7U CN215377004U (en) | 2021-08-10 | 2021-08-10 | Low-abrasion frequency conversion cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121855289.7U CN215377004U (en) | 2021-08-10 | 2021-08-10 | Low-abrasion frequency conversion cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215377004U true CN215377004U (en) | 2021-12-31 |
Family
ID=79617167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121855289.7U Active CN215377004U (en) | 2021-08-10 | 2021-08-10 | Low-abrasion frequency conversion cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215377004U (en) |
-
2021
- 2021-08-10 CN CN202121855289.7U patent/CN215377004U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231019 Address after: 918, Building B, Yonghuayuan, No. 6 Baotian Second Road, Chentian Community, Xixiang Street, Bao'an District, Shenzhen City, Guangdong Province, 518102 Patentee after: Shenzhen Zhongsheng Wanjia Investment Co.,Ltd. Address before: 918, unit 4, building B, yonghuayuan, No.6 Baotian 2nd Road, chentian community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Guangdong Xinyi Cable Co.,Ltd. |