WO2023131351A1 - High-temperature-resistant, bending-resistant and wear-resistant reeling flat cable for variable frequency device - Google Patents
High-temperature-resistant, bending-resistant and wear-resistant reeling flat cable for variable frequency device Download PDFInfo
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- WO2023131351A1 WO2023131351A1 PCT/CN2023/077579 CN2023077579W WO2023131351A1 WO 2023131351 A1 WO2023131351 A1 WO 2023131351A1 CN 2023077579 W CN2023077579 W CN 2023077579W WO 2023131351 A1 WO2023131351 A1 WO 2023131351A1
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- frequency conversion
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- bending
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- 238000005452 bending Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 99
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002955 isolation Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 32
- 239000004020 conductor Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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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
- H01B7/08—Flat or ribbon cables
- H01B7/0861—Flat or ribbon cables comprising one or more screens
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/228—Metal braid
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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
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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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
Definitions
- the invention relates to the technical field of cable production, in particular to a reel flat cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device.
- frequency conversion speed regulation motor is used in the high-power motor, the entire generator set can save 30% of electricity. And the use of frequency conversion speed regulation can realize the soft start of the motor, make the motor work smoothly, reduce the wear of the motor bearing, and prolong the service life and maintenance cycle of the motor. Therefore, frequency conversion speed regulation technology has been widely used in petroleum, metallurgy, power generation, railway, mining and other industries. With the rapid development of various electrified and intelligent machinery and equipment, frequency conversion devices have also been further applied to mobile machinery and equipment, such as: scrapers, power plant bucket wheel machines, cranes, loaders and other heavy handling equipment.
- High temperature resistant reel cables for frequency conversion devices on the existing market often use silicone rubber as insulation and sheath materials, which are not wear-resistant when used, have poor tensile properties, short service life, are not easy to bend, have poor drag performance, and are inconvenient to use.
- the present invention proposes a high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion devices, including:
- control cables include the first thin soft steel wire rope located in the middle, eight control cable cores and the cable core shielding layer coated on the outside of the first thin soft steel wire rope and the eight control cable core cables;
- Frequency conversion cable one the frequency conversion cable one includes three first frequency conversion power cores, three ground cores, and a cable core shielding layer covering the outside of the three first frequency conversion power cores and three ground cores;
- the frequency conversion cable 2 includes the second thin soft steel wire rope located in the middle, three second frequency conversion power cores, three ground wire cores, and the second thin soft steel wire rope, three second frequency conversion power cores, and three ground wires The shielding layer of the cable core outside the core;
- Inner sheath and outer sheath, the control cable, frequency conversion cable 1, frequency conversion cable 2, and control cable are arranged along a straight line in turn, and the inner sheath is extruded between two sets of control cables, frequency conversion cable 1, and frequency conversion cable 2 Between, the outer sheath covers the outside of the inner sheath.
- control cable cores in the control cable are arranged in a circumferential array outside the first thin soft steel wire rope.
- the three first frequency conversion power cores and the three ground cores in the frequency conversion cable 1 are alternately arranged in a circle; the three second frequency conversion power cores and the three ground cores in the frequency conversion cable 2 Circular alternate circumferential arrays are arranged outside the second thin flexible steel wire rope.
- the eight control cable cores in the control cable all have a nominal thickness of 1.0 mm and a nominal cross section of 2.5 mm 2 .
- the nominal thickness of the three first variable frequency power cores in the frequency conversion cable 1 are all 1.2 mm and the nominal cross section is 16 mm 2
- the nominal thickness of the three ground cores are all 1.0 mm and the nominal cross section is 1.0 mm. Both are 2.5mm 2 .
- the nominal thickness of the three second frequency conversion power wire cores in the frequency conversion cable 2 is 1.0 mm, and the nominal cross section is 4 mm 2 , and the nominal thickness of the three ground wire cores in the frequency conversion cable 2 is 1.0 mm. mm and nominal section are both 2.5mm 2 .
- the outer part of the control cable is wrapped with a polyester tape isolation layer, and the pitch ratio of the cable is 7 to 8; 9 to 10.
- the cable core shielding layer, the cable core shielding layer, and the cable core shielding layer are all tinned copper wire braids,
- the weaving density is between 85% and 87%.
- it also includes a light-weight non-woven isolation layer, and the cable core shielding layer, the cable core shielding layer, and the outside of the cable core shielding layer are all wrapped with the light-weight non-woven fabric isolation layer.
- the inner sheath is made of TPEE material and its nominal thickness is 3.0mm.
- the outer sheath is made of TPEE material.
- a high-temperature-resistant, bending-resistant and wear-resistant reel flat cable proposed by the present invention adopts the above-mentioned technical scheme, and achieves the following technical effects:
- the frequency conversion cable core adopts a 3+3 structure.
- the pulse voltage during frequent frequency conversion plays a good role in protecting the frequency conversion electrical appliances, and has the advantages of energy saving, prolonging the service life and maintenance cycle of the motor;
- the conductor adopts the sixth tinned annealed copper wire in accordance with the provisions of GB/T 3956, and the twisted structure is encrypted in the same direction.
- the structural design such as tensile core is set to make the cable have excellent properties such as flexibility, tensile strength and bending resistance.
- the insulation and sheath are made of TPEE material.
- TPEE has extremely high tensile strength, excellent oil resistance and chemical resistance, excellent insulation, excellent resilience, and has excellent creep resistance, impact resistance and Flex fatigue resistance, its working temperature is very wide, so that the cable has excellent high temperature resistance, cold resistance, flex resistance, impact resistance, wear resistance and tear resistance.
- Fig. 1 is a schematic cross-sectional structure diagram of the present invention.
- Control cable 11. The first soft steel wire rope, 12. Control cable core, 13. Cable core shielding layer, 2. Frequency conversion cable 1, 21. The first frequency conversion power core, 22. Ground core, 23 .Cable core shielding layer, 3.Frequency conversion circuit Cable two, 31. The second soft steel wire rope, 32. The second frequency conversion power core, 33. Ground wire core, 34. Cable core shielding layer, 4. Inner sheath, 5. Outer sheath.
- the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch.
- “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
- “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
- the present invention proposes a high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion devices, including:
- control cables 1 include the first thin soft steel wire rope 11 in the middle, eight control cable cores 12 and the cable core shielding layer 13 coated on the outside of the first thin soft steel wire rope 11 and the eight control cable cores 12;
- eight control cable cores 12 in the control cable 1 are arranged in a circumferential array outside the first thin soft steel wire rope 11 .
- the eight control cable cores 12 in the control cable 1 are all set to have a nominal thickness of 1.0 mm and a nominal cross section of 2.5 mm 2 .
- the outer part of the control cable 1 is wrapped with a polyester tape isolation layer, and the pitch ratio of the cable is 7-8;
- the frequency conversion cable 12, the frequency conversion cable 12 includes three first frequency conversion power cores 21, three ground cores 22, and a cable core shielding layer 23 coated on the outside of the three first frequency conversion power cores 21 and the three ground cores 22 ;
- the three first frequency conversion power cores 21 and the three ground cores 22 in the frequency conversion cable 2 are alternately arranged in a circle.
- the nominal thickness of the three first frequency conversion power cores 21 in the frequency conversion cable 12 are all 1.2 mm, and the nominal cross section is 16 mm 2 , and the nominal thickness of the three ground cores 22 are all 1.0 mm, and the nominal thickness is 1.0 mm. Said section is 2.5mm 2 .
- the variable frequency cable-2 is wrapped with a polyester tape isolation layer, and the pitch ratio of the cable is 9-10.
- the frequency conversion cable 2 3, the frequency conversion cable 2 3 includes the second thin soft steel wire rope 31 located in the middle, three second frequency conversion power cores 32, three ground cores 33, and the second thin soft steel wire rope 31, three second frequency conversion power cores 32.
- the cable core shielding layer 34 outside the three ground wire cores 33; the three second frequency conversion power cores 32 and the three ground wire cores 33 in the frequency conversion cable 2 3 are arranged in a circular alternate circumferential array on the second thin soft steel wire rope 31 outside.
- the nominal thickness of the three second frequency conversion power cores 32 in the frequency conversion cable 2 3 is 1.0 mm
- the nominal cross section is 4 mm 2
- the nominal thickness of the three ground cores 22 in the frequency conversion cable 2 3 is 1.0 mm. Both are 1.0mm, and the nominal cross-section is 2.5mm 2 .
- the frequency conversion cable 2 3 is wrapped with a polyester tape isolation layer, and the section diameter ratio of the cable is 9-10.
- Inner sheath 4 and outer sheath 5, control cable 1, frequency conversion cable 2, frequency conversion cable 2 3, and control cable 1 are arranged in sequence from left to right, and inner sheath 4 is extruded between two groups of control cable 1 and frequency conversion cable 1 2. Between frequency conversion cables 2 3 , the outer sheath 5 covers the inner sheath 4 outside.
- the inner sheath 4 is made of TPEE material and its nominal thickness is 3.0mm.
- the material is tinned annealed copper wire in accordance with GB/T 4910, the conductor stranding adopts the structure of bundled wire and multiple twisting, and the conductor The beam is right, the re-twisting direction is right, and the small pitch is twisted.
- control cable cores 12 For the setting of the control cable 1 on the left: eight control cable cores 12, including seven white ones and one yellow one. For the setting of the control cable 1 on the right side, there are eight control cable cores 12, including three red ones, three green ones and two yellow ones.
- the three first frequency conversion power wire cores 21 are red, yellow and green respectively, and the three ground wires 22 cores are all yellow-green.
- the three second frequency conversion power cores 32 are respectively red, yellow and green, and the three ground cores 33 are all yellow-green.
- frequency conversion cable 1 2 and frequency conversion cable 2 3 are all cabled according to the structure of 3+3, the direction is right, and the polyester tape isolating layer is wrapped around the outside, and the pitch ratio of the cable is 9 ⁇ 10; the control cable 1 is 8+ 1
- the structure is cabled, the middle is a steel wire rope, the direction is right, and the outer layer is wrapped with a polyester tape isolation layer, and the cable pitch ratio is 7-8.
- the above cable core shielding layer 13 , cable core shielding layer 23 , and cable core shielding layer 33 are all braided layers of tinned copper wires, and the braiding density is between 85% and 87%.
- the cable core shielding layer 13, the cable core shielding layer 23, and the cable core shielding layer 33 are all wrapped with light non-woven fabric isolation layers.
- the cable is equipped with an insulating protective layer, in which the insulating protective layer and the outer sheath 5 are made of TPEE (thermoplastic polyester elastomer) material, which makes the tensile strength not less than 20N/mm 2 , tear-resistant The strength is not less than 70kN/m, and the elongation at break is not less than 400%.
- TPEE thermoplastic polyester elastomer
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- Insulated Conductors (AREA)
Abstract
Provided in the present invention is a high-temperature-resistant, bending-resistant and wear-resistant reeling flat cable for a variable frequency device. The high-temperature-resistant, bending-resistant and wear-resistant reeling flat cable comprises: two control cables, each control cable comprising a first thin and flexible steel wire rope located in the middle, eight control cable cores, and a cable core shielding layer, which covers the first thin and flexible steel wire rope and the eight control cable cores; and a variable frequency cable I, which comprises three variable frequency power wire cores, three ground wire cores, and a cable core shielding layer, which covers the three variable frequency power wire cores and the three ground wire cores. In the present invention, two variable frequency cables are provided, and variable frequency cable cores both use a 3+3 structure, and are externally provided with tinned copper wire braided layers, which have a density not less than 85%, such that the cable has strong voltage impact resistance, can withstand a pulse voltage during high-speed frequent frequency conversion, have a good protection effect on a variable-frequency electric apparatus, and have the advantages of saving energy and prolonging the service life and maintenance period of an electric motor. In addition, the cable has excellent performances such as tensile strength and bending resistance by means of the special structural design of the cable.
Description
本发明涉及电缆生产技术领域,尤其涉及一种变频装置用耐高温抗弯曲耐磨卷筒扁电缆。The invention relates to the technical field of cable production, in particular to a reel flat cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device.
目前的变频装置节能效果十分明显,在大功率电机中采用变频调速电机,整个发电机组可节电30%。并且使用变频调速,可以实现电机的软启动,使电机工作平稳,电机轴承磨损减小,延长了电机使用寿命和维护周期。因此,变频调速技术在石油、冶金、发电、铁路、矿山等工业方面得到了广泛的使用。随着各类电动化和智能化机械设备迅速发展,变频装置也在移动机械设备上得到了进一步应用,如:铲运机、电厂斗轮机、起重机、装卸机及其它重型搬运设备等。The energy-saving effect of the current frequency conversion device is very obvious. If the frequency conversion speed regulation motor is used in the high-power motor, the entire generator set can save 30% of electricity. And the use of frequency conversion speed regulation can realize the soft start of the motor, make the motor work smoothly, reduce the wear of the motor bearing, and prolong the service life and maintenance cycle of the motor. Therefore, frequency conversion speed regulation technology has been widely used in petroleum, metallurgy, power generation, railway, mining and other industries. With the rapid development of various electrified and intelligent machinery and equipment, frequency conversion devices have also been further applied to mobile machinery and equipment, such as: scrapers, power plant bucket wheel machines, cranes, loaders and other heavy handling equipment.
现有市场上的变频装置用耐高温卷筒电缆常用硅橡胶作为绝缘和护套材料,使用时不耐磨,抗拉性能也较差,使用寿命短,不易弯曲、拖拽性差,使用不便。High temperature resistant reel cables for frequency conversion devices on the existing market often use silicone rubber as insulation and sheath materials, which are not wear-resistant when used, have poor tensile properties, short service life, are not easy to bend, have poor drag performance, and are inconvenient to use.
发明内容Contents of the invention
基于背景技术中存在的技术问题,本发明提出了一种变频装置用耐高温抗弯曲耐磨卷筒扁电缆,包括:Based on the technical problems existing in the background technology, the present invention proposes a high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion devices, including:
两组控制电缆,所述控制电缆包括位于中部的第一细软钢丝绳、八根控制缆芯以及包覆在第一细软钢丝绳、八根控制缆芯缆外部的缆芯屏蔽层;Two groups of control cables, the control cables include the first thin soft steel wire rope located in the middle, eight control cable cores and the cable core shielding layer coated on the outside of the first thin soft steel wire rope and the eight control cable core cables;
变频电缆一,所述变频电缆一包括三根第一变频动力线芯、三根地线芯、以及包覆在三根第一变频动力线芯、三根地线芯外部的缆芯屏蔽层;
Frequency conversion cable one, the frequency conversion cable one includes three first frequency conversion power cores, three ground cores, and a cable core shielding layer covering the outside of the three first frequency conversion power cores and three ground cores;
变频电缆二,所述变频电缆二包括位于中部的第二细软钢丝绳、三根第二变频动力线芯、三根地线芯以及包覆在第二细软钢丝绳、三根第二变频动力线芯、三根地线芯外部的缆芯屏蔽层; Frequency conversion cable 2, the frequency conversion cable 2 includes the second thin soft steel wire rope located in the middle, three second frequency conversion power cores, three ground wire cores, and the second thin soft steel wire rope, three second frequency conversion power cores, and three ground wires The shielding layer of the cable core outside the core;
内护套和外护层,所述控制电缆、变频电缆一、变频电缆二、控制电缆依次沿直线排布,所述内护套挤包在两组控制电缆、变频电缆一、变频电缆二之间,所述外护层包覆在内护套外部。Inner sheath and outer sheath, the control cable, frequency conversion cable 1, frequency conversion cable 2, and control cable are arranged along a straight line in turn, and the inner sheath is extruded between two sets of control cables, frequency conversion cable 1, and frequency conversion cable 2 Between, the outer sheath covers the outside of the inner sheath.
优选的,所述控制电缆中的八根控制缆芯周向阵列布置在第一细软钢丝绳外部。Preferably, eight control cable cores in the control cable are arranged in a circumferential array outside the first thin soft steel wire rope.
优选的,所述变频电缆一中的三根第一变频动力线芯、三个地线芯呈圆形的交替排布;所述变频电缆二中的三根第二变频动力线芯、三根地线芯呈圆形的交替周向阵列排布在第二细软钢丝绳外部。Preferably, the three first frequency conversion power cores and the three ground cores in the frequency conversion cable 1 are alternately arranged in a circle; the three second frequency conversion power cores and the three ground cores in the frequency conversion cable 2 Circular alternate circumferential arrays are arranged outside the second thin flexible steel wire rope.
优选的,所述控制电缆中的八个控制缆芯的标称厚度均为1.0mm、标称截面均为2.5mm2。Preferably, the eight control cable cores in the control cable all have a nominal thickness of 1.0 mm and a nominal cross section of 2.5 mm 2 .
优选的,所述变频电缆一中的三根第一变频动力线芯的标称厚度均为1.2mm、标称截面均为16mm2,三根地线芯的标称厚度均为1.0mm、标称截面均为2.5mm2。Preferably, the nominal thickness of the three first variable frequency power cores in the frequency conversion cable 1 are all 1.2 mm and the nominal cross section is 16 mm 2 , and the nominal thickness of the three ground cores are all 1.0 mm and the nominal cross section is 1.0 mm. Both are 2.5mm 2 .
优选的,所述变频电缆二中的三根第二变频动力线芯的标称厚度均为1.0mm、标称截面均为4mm2,变频电缆二中的三根地线芯的标称厚度均为1.0mm、标称截面均为2.5mm2。Preferably, the nominal thickness of the three second frequency conversion power wire cores in the frequency conversion cable 2 is 1.0 mm, and the nominal cross section is 4 mm 2 , and the nominal thickness of the three ground wire cores in the frequency conversion cable 2 is 1.0 mm. mm and nominal section are both 2.5mm 2 .
优选的,所述控制电缆外部绕包聚酯带隔离层,成缆节径比为7~8;所述变频电缆一、变频电缆二外部均绕包聚酯带隔离层,成缆节径比为9~10。Preferably, the outer part of the control cable is wrapped with a polyester tape isolation layer, and the pitch ratio of the cable is 7 to 8; 9 to 10.
优选的,所述缆芯屏蔽层、缆芯屏蔽层、缆芯屏蔽层均为镀锡铜丝编织层,
编织密度介于85%~87%之间。Preferably, the cable core shielding layer, the cable core shielding layer, and the cable core shielding layer are all tinned copper wire braids, The weaving density is between 85% and 87%.
优选的,还包括轻型无纺布隔离层,所述缆芯屏蔽层、缆芯屏蔽层、缆芯屏蔽层外部均绕包有所述轻型无纺布隔离层。Preferably, it also includes a light-weight non-woven isolation layer, and the cable core shielding layer, the cable core shielding layer, and the outside of the cable core shielding layer are all wrapped with the light-weight non-woven fabric isolation layer.
优选的,所述内护套由TPEE材料制成并且其标称厚度3.0mm。Preferably, the inner sheath is made of TPEE material and its nominal thickness is 3.0mm.
优选的,所述外护层由TPEE材料制成。Preferably, the outer sheath is made of TPEE material.
相较于现有技术,本发明提出的一种变频装置用耐高温抗弯曲耐磨卷筒扁电缆采用上述技术方案,达到了如下技术效果:Compared with the prior art, a high-temperature-resistant, bending-resistant and wear-resistant reel flat cable proposed by the present invention adopts the above-mentioned technical scheme, and achieves the following technical effects:
1、设置了两组变频电缆,变频缆芯采用3+3结构,缆芯外设有镀锡铜丝编织层,密度不小于85%,使电缆具有较强的耐电压冲击性,能经受高速频繁变频时的脉冲电压,对变频电器起到良好的保护作用,具有节能、延长电机使用寿命和维护周期的优点;1. Two sets of frequency conversion cables are installed. The frequency conversion cable core adopts a 3+3 structure. There is a tinned copper wire braid outside the cable core, and the density is not less than 85%, so that the cable has strong voltage shock resistance and can withstand high speed. The pulse voltage during frequent frequency conversion plays a good role in protecting the frequency conversion electrical appliances, and has the advantages of energy saving, prolonging the service life and maintenance cycle of the motor;
2、导体采用符合GB/T 3956规定第6种镀锡软铜丝,同向加密的的绞合结构,控制电缆、变频电缆一、变频电缆二成缆均采用小节距绞合,控制电缆中心设置抗拉芯等结构设计,使电缆具有优异的柔软、抗张强度和耐弯曲等性能。2. The conductor adopts the sixth tinned annealed copper wire in accordance with the provisions of GB/T 3956, and the twisted structure is encrypted in the same direction. The structural design such as tensile core is set to make the cable have excellent properties such as flexibility, tensile strength and bending resistance.
3、绝缘和护层采用TPEE材料,TPEE具有极高的拉伸强度、极佳的耐油性和耐化学物质、优异的绝缘性、优异的回弹性,同时具有优异的抗蠕变、耐冲击和耐曲挠疲劳性,其工作温度非常宽,使电缆具有优异的耐高温、耐寒、耐曲挠、耐冲击、耐磨、抗撕性能。3. The insulation and sheath are made of TPEE material. TPEE has extremely high tensile strength, excellent oil resistance and chemical resistance, excellent insulation, excellent resilience, and has excellent creep resistance, impact resistance and Flex fatigue resistance, its working temperature is very wide, so that the cable has excellent high temperature resistance, cold resistance, flex resistance, impact resistance, wear resistance and tear resistance.
图1为本发明的剖视结构示意图。Fig. 1 is a schematic cross-sectional structure diagram of the present invention.
图中:1.控制电缆、11.第一细软钢丝绳、12.控制缆芯、13.缆芯屏蔽层、2.变频电缆一、21.第一变频动力线芯、22.地线芯、23.缆芯屏蔽层、3.变频电
缆二、31.第二细软钢丝绳、32.第二变频动力线芯、33.地线芯、34.缆芯屏蔽层、4.内护套、5.外护层。In the figure: 1. Control cable, 11. The first soft steel wire rope, 12. Control cable core, 13. Cable core shielding layer, 2. Frequency conversion cable 1, 21. The first frequency conversion power core, 22. Ground core, 23 .Cable core shielding layer, 3.Frequency conversion circuit Cable two, 31. The second soft steel wire rope, 32. The second frequency conversion power core, 33. Ground wire core, 34. Cable core shielding layer, 4. Inner sheath, 5. Outer sheath.
在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接或彼此可通讯;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, Unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
在本发明中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。而且,第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
参照图1,本发明提出一种变频装置用耐高温抗弯曲耐磨卷筒扁电缆,包括:Referring to Figure 1, the present invention proposes a high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion devices, including:
两组控制电缆1,控制电缆1包括位于中部的第一细软钢丝绳11、八根控制缆芯12以及包覆在第一细软钢丝绳11、八根控制缆芯12缆外部的缆芯屏蔽层13;优选的,控制电缆1中的八根控制缆芯12周向阵列布置在第一细软钢丝绳11外部。进一步的,设置控制电缆1中的八个控制缆芯12的标称厚度均为1.0mm、标称截面均为2.5mm2。进一步的,控制电缆1外部绕包聚酯带隔离层,成缆节径比为7~8;
Two groups of control cables 1, the control cables 1 include the first thin soft steel wire rope 11 in the middle, eight control cable cores 12 and the cable core shielding layer 13 coated on the outside of the first thin soft steel wire rope 11 and the eight control cable cores 12; Preferably, eight control cable cores 12 in the control cable 1 are arranged in a circumferential array outside the first thin soft steel wire rope 11 . Further, the eight control cable cores 12 in the control cable 1 are all set to have a nominal thickness of 1.0 mm and a nominal cross section of 2.5 mm 2 . Further, the outer part of the control cable 1 is wrapped with a polyester tape isolation layer, and the pitch ratio of the cable is 7-8;
变频电缆一2,变频电缆一2包括三根第一变频动力线芯21、三根地线芯22、以及包覆在三根第一变频动力线芯21、三根地线芯22外部的缆芯屏蔽层23;优选的,变频电缆一2中的三根第一变频动力线芯21、三个地线芯22呈圆形的交替排布。进一步的,设置变频电缆一2中的三根第一变频动力线芯21的标称厚度均为1.2mm、标称截面均为16mm2,三根地线芯22的标称厚度均为1.0mm、标称截面均为2.5mm2。进一步的,变频电缆一2外部绕包聚酯带隔离层,成缆节径比为9~10。The frequency conversion cable 12, the frequency conversion cable 12 includes three first frequency conversion power cores 21, three ground cores 22, and a cable core shielding layer 23 coated on the outside of the three first frequency conversion power cores 21 and the three ground cores 22 ; Preferably, the three first frequency conversion power cores 21 and the three ground cores 22 in the frequency conversion cable 2 are alternately arranged in a circle. Further, the nominal thickness of the three first frequency conversion power cores 21 in the frequency conversion cable 12 are all 1.2 mm, and the nominal cross section is 16 mm 2 , and the nominal thickness of the three ground cores 22 are all 1.0 mm, and the nominal thickness is 1.0 mm. Said section is 2.5mm 2 . Further, the variable frequency cable-2 is wrapped with a polyester tape isolation layer, and the pitch ratio of the cable is 9-10.
变频电缆二3,变频电缆二3包括位于中部的第二细软钢丝绳31、三根第二变频动力线芯32、三根地线芯33以及包覆在第二细软钢丝绳31、三根第二变频动力线芯32、三根地线芯33外部的缆芯屏蔽层34;变频电缆二3中的三根第二变频动力线芯32、三根地线芯33呈圆形的交替周向阵列排布在第二细软钢丝绳31外部。进一步的,设置变频电缆二3中的三根第二变频动力线芯32的标称厚度均为1.0mm、标称截面均为4mm2,变频电缆二3中的三根地线芯22的标称厚度均为1.0mm、标称截面均为2.5mm2。进一步的,变频电缆二3外部绕包聚酯带隔离层,成缆节径比为9~10。The frequency conversion cable 2 3, the frequency conversion cable 2 3 includes the second thin soft steel wire rope 31 located in the middle, three second frequency conversion power cores 32, three ground cores 33, and the second thin soft steel wire rope 31, three second frequency conversion power cores 32. The cable core shielding layer 34 outside the three ground wire cores 33; the three second frequency conversion power cores 32 and the three ground wire cores 33 in the frequency conversion cable 2 3 are arranged in a circular alternate circumferential array on the second thin soft steel wire rope 31 outside. Further, the nominal thickness of the three second frequency conversion power cores 32 in the frequency conversion cable 2 3 is 1.0 mm, and the nominal cross section is 4 mm 2 , and the nominal thickness of the three ground cores 22 in the frequency conversion cable 2 3 is 1.0 mm. Both are 1.0mm, and the nominal cross-section is 2.5mm 2 . Further, the frequency conversion cable 2 3 is wrapped with a polyester tape isolation layer, and the section diameter ratio of the cable is 9-10.
内护套4和外护层5,控制电缆1、变频电缆一2、变频电缆二3、控制电缆1依次自左向右排布,内护套4挤包在两组控制电缆1、变频电缆一2、变频电缆二3之间,外护层5包覆在内护套4外部。优选的,内护套4由TPEE材料制成并且其标称厚度3.0mm。Inner sheath 4 and outer sheath 5, control cable 1, frequency conversion cable 2, frequency conversion cable 2 3, and control cable 1 are arranged in sequence from left to right, and inner sheath 4 is extruded between two groups of control cable 1 and frequency conversion cable 1 2. Between frequency conversion cables 2 3 , the outer sheath 5 covers the inner sheath 4 outside. Preferably, the inner sheath 4 is made of TPEE material and its nominal thickness is 3.0mm.
对于上述的电缆导体的选用:采用GB/T 3956中规定的第6种导体结构,材料为符合GB/T 4910的镀锡软铜线,导体绞合均采用先束丝加复绞结构,导体束丝为右,复绞方向为右,小节距绞合。
For the selection of the above-mentioned cable conductors: adopt the sixth conductor structure specified in GB/T 3956, the material is tinned annealed copper wire in accordance with GB/T 4910, the conductor stranding adopts the structure of bundled wire and multiple twisting, and the conductor The beam is right, the re-twisting direction is right, and the small pitch is twisted.
对于左侧的控制电缆1的设置:八根控制缆芯12,其中白色七根,黄色一根。对于右侧的控制电缆1的设置,八根控制缆芯12,其中红色三根,绿色三根,黄色两根。For the setting of the control cable 1 on the left: eight control cable cores 12, including seven white ones and one yellow one. For the setting of the control cable 1 on the right side, there are eight control cable cores 12, including three red ones, three green ones and two yellow ones.
对于变频电缆一2的设置:三根第一变频动力线芯21分别为红色、黄色、绿色,三根地线22芯均为黄绿色。对于变频电缆二3的设置:三根第二变频动力线芯32分别为红色、黄色、绿色,三根地线芯33均为黄绿色。For the setting of the frequency conversion cable 12: the three first frequency conversion power wire cores 21 are red, yellow and green respectively, and the three ground wires 22 cores are all yellow-green. For the setting of frequency conversion cable 2 3: the three second frequency conversion power cores 32 are respectively red, yellow and green, and the three ground cores 33 are all yellow-green.
对于成缆:变频电缆一2、变频电缆二3均按3+3结构成缆,方向为右,外绕包聚酯带隔离层,成缆节径比9~10;控制电缆1按8+1结构成缆,中间为钢丝绳,方向为右,外绕包聚酯带隔离层,成缆节径比7~8。For cabling: frequency conversion cable 1 2 and frequency conversion cable 2 3 are all cabled according to the structure of 3+3, the direction is right, and the polyester tape isolating layer is wrapped around the outside, and the pitch ratio of the cable is 9~10; the control cable 1 is 8+ 1 The structure is cabled, the middle is a steel wire rope, the direction is right, and the outer layer is wrapped with a polyester tape isolation layer, and the cable pitch ratio is 7-8.
以上的缆芯屏蔽层13、缆芯屏蔽层23、缆芯屏蔽层33均为镀锡铜丝编织层,编织密度介于85%~87%之间。缆芯屏蔽层13、缆芯屏蔽层23、缆芯屏蔽层33外部均绕包有轻型无纺布隔离层。The above cable core shielding layer 13 , cable core shielding layer 23 , and cable core shielding layer 33 are all braided layers of tinned copper wires, and the braiding density is between 85% and 87%. The cable core shielding layer 13, the cable core shielding layer 23, and the cable core shielding layer 33 are all wrapped with light non-woven fabric isolation layers.
同时本电缆外设有绝缘保护层,其中绝缘保护层和外护层5均采用TPEE(热塑型聚酯弹性体)材料,使用该材料使得抗张强度不小于20N/mm2,抗撕裂强度不小于70kN/m,断裂伸长率不小于400%。At the same time, the cable is equipped with an insulating protective layer, in which the insulating protective layer and the outer sheath 5 are made of TPEE (thermoplastic polyester elastomer) material, which makes the tensile strength not less than 20N/mm 2 , tear-resistant The strength is not less than 70kN/m, and the elongation at break is not less than 400%.
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.
Claims (10)
- 一种变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,包括:A high-temperature-resistant, bending-resistant, wear-resistant reel flat cable for a frequency conversion device, characterized in that it includes:两组控制电缆(1),所述控制电缆(1)包括位于中部的第一细软钢丝绳(11)、八根控制缆芯(12)以及包覆在第一细软钢丝绳(11)、八根控制缆芯(12)缆外部的缆芯屏蔽层(13);Two sets of control cables (1), the control cables (1) include a first soft steel wire rope (11) located in the middle, eight control cable cores (12), and eight control cable cores (12) coated on the first thin soft steel rope (11), eight control cables The cable core shielding layer (13) outside the cable core (12) cable;变频电缆一(2),所述变频电缆一(2)包括三根第一变频动力线芯(21)、三根地线芯(22)、以及包覆在三根第一变频动力线芯(21)、三根地线芯(22)外部的缆芯屏蔽层(23);Frequency conversion cable one (2), the frequency conversion cable one (2) includes three first frequency conversion power cores (21), three ground cores (22), and three first frequency conversion power cores (21), The cable core shielding layer (23) outside the three ground wire cores (22);变频电缆二(3),所述变频电缆二(3)包括位于中部的第二细软钢丝绳(31)、三根第二变频动力线芯(32)、三根地线芯(33)以及包覆在第二细软钢丝绳(31)、三根第二变频动力线芯(32)、三根地线芯(33)外部的缆芯屏蔽层(34);The frequency conversion cable two (3), the frequency conversion cable two (3) includes the second thin soft steel wire rope (31) located in the middle, three second frequency conversion power cores (32), three ground cores (33) and the coating on the second Two thin soft steel wire ropes (31), three second frequency conversion power wire cores (32), three ground wire cores (33) outer cable core shielding layers (34);内护套(4)和外护层(5),所述控制电缆(1)、变频电缆一(2)、变频电缆二(3)、控制电缆(1)依次沿直线排布,所述内护套(4)挤包在两组控制电缆(1)、变频电缆一(2)、变频电缆二(3)之间,所述外护层(5)包覆在内护套(4)外部。The inner sheath (4) and the outer sheath (5), the control cable (1), frequency conversion cable one (2), frequency conversion cable two (3), and control cable (1) are arranged along a straight line in sequence, and the inner The sheath (4) is extruded between the two sets of control cables (1), frequency conversion cable 1 (2), and frequency conversion cable 2 (3), and the outer sheath (5) is wrapped outside the inner sheath (4) .
- 根据权利要求1所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,所述控制电缆(1)中的八根控制缆芯(12)周向阵列布置在第一细软钢丝绳(11)外部。The high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion device according to claim 1, characterized in that, the eight control cable cores (12) in the control cable (1) are arranged in a circumferential array on the first thin soft Wire rope (11) outside.
- 根据权利要求2所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,所述变频电缆一(2)中的三根第一变频动力线芯(21)、三个地线芯(22)呈圆形的交替排布;所述变频电缆二(3)中的三根第二变频动力线芯(32)、三根地线芯(33)呈圆形的交替周向阵列排布在第二 细软钢丝绳(31)外部。The high-temperature-resistant, bending-resistant, and wear-resistant reel flat cable for frequency conversion devices according to claim 2, characterized in that, the three first frequency conversion power cores (21) and three ground wires in the frequency conversion cable one (2) The cores (22) are alternately arranged in a circle; the three second frequency conversion power cores (32) and the three ground cores (33) in the frequency conversion cable two (3) are arranged in a circular alternate circumferential array in the second Thin soft wire rope (31) outside.
- 根据权利要求1-3中任一项所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,所述控制电缆(1)中的八个控制缆芯(12)的标称厚度均为1.0mm、标称截面均为2.5mm2。According to any one of claims 1-3, the high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion device is characterized in that, the eight control cable cores (12) in the control cable (1) are marked The said thickness is 1.0mm and the nominal section is 2.5mm 2 .
- 根据权利要求4所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,所述变频电缆一(2)中的三根第一变频动力线芯(21)的标称厚度均为1.2mm、标称截面均为16mm2,三根地线芯(22)的标称厚度均为1.0mm、标称截面均为2.5mm2。The high-temperature-resistant, bending-resistant, and wear-resistant reel flat cable for frequency conversion devices according to claim 4, characterized in that the nominal thicknesses of the three first frequency conversion power cores (21) in the frequency conversion cable one (2) are the same The nominal thickness of the three ground cores (22) is 1.0mm , and the nominal cross-section is 2.5mm 2 .
- 根据权利要求5所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,所述变频电缆二(3)中的三根第二变频动力线芯(32)的标称厚度均为1.0mm、标称截面均为4mm2,变频电缆二(3)中的三根地线芯(22)的标称厚度均为1.0mm、标称截面均为2.5mm2。According to claim 5, the high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion device is characterized in that, the nominal thicknesses of the three second frequency conversion power cores (32) in the frequency conversion cable two (3) are equal to The nominal thickness of the three ground cores ( 22 ) in the frequency conversion cable 2 ( 3 ) is 1.0 mm, and the nominal cross section is 2.5 mm 2 .
- 根据权利要求6所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,所述控制电缆(1)外部绕包聚酯带隔离层,成缆节径比为7~8;所述变频电缆一(2)、变频电缆二(3)外部均绕包聚酯带隔离层,成缆节径比为9~10。The high-temperature-resistant, bending-resistant, and wear-resistant reel flat cable for frequency conversion devices according to claim 6, characterized in that the control cable (1) is externally wrapped with a polyester tape isolation layer, and the cable pitch ratio is 7-8 The frequency conversion cable 1 (2) and the frequency conversion cable 2 (3) are both wrapped with a polyester tape isolation layer on the outside, and the pitch ratio of the cables is 9-10.
- 根据权利要求5-7中任一项所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,所述缆芯屏蔽层(13)、缆芯屏蔽层(23)、缆芯屏蔽层(33)均为镀锡铜丝编织层,编织密度介于85%~87%之间。According to any one of claims 5-7, the high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion device is characterized in that, the cable core shielding layer (13), the cable core shielding layer (23), the cable The core shielding layer (33) is a braided layer of tinned copper wire, and the braiding density is between 85% and 87%.
- 根据权利要求8所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,还包括轻型无纺布隔离层,所述缆芯屏蔽层(13)、缆芯屏蔽层(23)、缆芯屏蔽层(33)外部均绕包有所述轻型无纺布隔离层。 According to claim 8, the high-temperature-resistant, bending-resistant and wear-resistant reel flat cable for frequency conversion device is characterized in that it also includes a light non-woven fabric isolation layer, the cable core shielding layer (13), the cable core shielding layer (23 ), the cable core shielding layer (33) are all wrapped with the light-duty non-woven isolation layer.
- 根据权利要求9所述的变频装置用耐高温抗弯曲耐磨卷筒扁电缆,其特征在于,所述内护套(4)由TPEE材料制成并且其标称厚度3.0mm;所述外护层(5)由TPEE材料制成。 The high-temperature-resistant, bending-resistant, and wear-resistant reel flat cable for frequency conversion devices according to claim 9, wherein the inner sheath (4) is made of TPEE material and has a nominal thickness of 3.0mm; the outer sheath Layer (5) is made of TPEE material.
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ZA2023/05954A ZA202305954B (en) | 2022-05-12 | 2023-06-05 | A flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device |
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CN202210515394.9A CN114758830A (en) | 2022-05-12 | 2022-05-12 | High-temperature-resistant, bending-resistant and wear-resistant flat cable of winding drum for frequency conversion device |
CN202210515394.9 | 2022-05-12 |
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WO2023131351A1 true WO2023131351A1 (en) | 2023-07-13 |
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PCT/CN2023/077579 WO2023131351A1 (en) | 2022-05-12 | 2023-02-22 | High-temperature-resistant, bending-resistant and wear-resistant reeling flat cable for variable frequency device |
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CN (1) | CN114758830A (en) |
LU (1) | LU504403B1 (en) |
WO (1) | WO2023131351A1 (en) |
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CN114758830A (en) * | 2022-05-12 | 2022-07-15 | 安徽华能电缆集团有限公司 | High-temperature-resistant, bending-resistant and wear-resistant flat cable of winding drum for frequency conversion device |
CN115691884A (en) * | 2022-12-19 | 2023-02-03 | 江苏江扬特种电缆有限公司 | Novel dampproofing photovoltaic cable |
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- 2023-02-22 LU LU504403A patent/LU504403B1/en active IP Right Grant
- 2023-02-22 WO PCT/CN2023/077579 patent/WO2023131351A1/en unknown
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ZA202305954B (en) | 2024-01-31 |
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