LU504403B1 - A flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device - Google Patents
A flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device Download PDFInfo
- Publication number
- LU504403B1 LU504403B1 LU504403A LU504403A LU504403B1 LU 504403 B1 LU504403 B1 LU 504403B1 LU 504403 A LU504403 A LU 504403A LU 504403 A LU504403 A LU 504403A LU 504403 B1 LU504403 B1 LU 504403B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- cable
- frequency conversion
- resistance
- core
- cores
- Prior art date
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 112
- 238000005452 bending Methods 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 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
- 229920000728 polyester Polymers 0.000 claims description 9
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 claims description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 238000009954 braiding Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 34
- 239000004020 conductor Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 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
- 238000005065 mining Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention provides a flat coiled cable with high temperature resistance, bending resistance and wear resistance for frequency conversion device. The control cable comprises two groups of control cables. The control cable comprises a first fine soft wire rope in the middle, eight control cable core and a cable core shielding layer covering the first fine soft wire rope and eight control cable cores. The frequency conversion cable comprises three frequency conversion power wire core, three ground wire cores, and a cable core shielding layer covered in three frequency conversion power wire core and three ground wire cores. The invention provides two groups of frequency conversion cables, and the frequency conversion cable core adopts 3+3 structure. The outer layer is equipped with tinned copper wire braid, the density is not less than 85%, so that the cable has strong voltage impact resistance. It can withstand the pulse voltage of high-speed frequency conversion, and it plays a good protective role for frequency conversion appliances. It has the advantages of energy saving, extending the service life and maintenance cycle of the motor. The special structure design of the cable makes the cable have excellent tensile strength and bending resistance.
Description
A Flat Coil Cable with High Temperature Resistance, Bending Resistance and Wear LU504403
Resistance for a Frequency Conversion Device
The invention relates to the technical field of cable production, in particular to a coiled flat cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device.
At present, the energy-saving effect of frequency conversion device is very obvious. The frequency conversion speed regulating motor is adopted in the high-power motor, and the whole generating set can save 30% of electricity. And the use of frequency control, can realize the soft start of the motor, make the motor work smoothly, motor bearing wear is reduced, prolong the service life and maintenance cycle of the motor. Therefore, frequency control technology has been widely used in petroleum, metallurgy, power generation, railway, mining and other industries. With the rapid development of all kinds of electric and intelligent mechanical equipment, frequency conversion devices have also been further applied in mobile mechanical equipment, such as: scrapers, power plant bucket turbines, cranes, stevedors and other heavy handling equipment.
On the existing market, the high temperature resistant coil cable for frequency conversion device is commonly used as insulation and sheath material, which is not wear-resistant when used, has poor tensile performance, short service life, is not easy to bend, poor towing performance, and inconvenient to use.
Based on the technical problems existing in the background technology, the invention provides a flat coiled cable with high temperature resistance, bending resistance and wear resistance for frequency conversion device, including:
Two groups of control cable, the control cable comprises a first fine soft wire rope in the middle, eight control cable core and covered in the first fine soft wire rope, eight control cable core cable shielding layer;
The frequency conversion cable i, the frequency conversion cable 1 comprises three first frequency conversion power wire core, three ground wire cores, and a cable core shielding layer covered in three first frequency conversion power wire core and three ground wire cores;
The frequency conversion cable ii, the frequency conversion cable two comprises the second fine soft wire rope in the middle, three second frequency conversion power wire core, three ground wire core and covered in the second fine soft wire rope, three second frequency conversion power wire core, three ground wire cores outside the cable core shielding layer;
The inner protective shell and the outer protective shell, the control cable, frequency conversion cable one, frequency conversion cable two, the control cable is arranged along a straight line, the inner protective shell is squeezed between the two groups of control cable, frequency conversion cable i, frequency conversion cable ii, the outer protective shell covers the outer protective shell.
Preferably, a circumferential array of eight control cable cores in the control cable is arranged outside the first fine soft wire rope.
Preferably, the three first frequency conversion power core and three ground cores of the frequency conversion cable are alternately arranged in a circular manner; The alternating circular circumferential array of three second frequency conversion power wire cores and three ground wire cores in the second frequency conversion cable is arranged outside the second fine soft wire rope. LU504403
Preferably, each of the eight control cable cores in the control cable has a nominal thickness of 1.0mm and a nominal cross-section of 2.5mm?.
Preferably, the nominal thickness of the three first frequency conversion power core of the variable frequency cable is 1.2mm and the nominal section is 16mm”, and the nominal thickness of the three ground wire cores is 1.0mm and the nominal section is 2.5mm?
Preferably, the nominal thickness of the three second frequency conversion power core of the frequency conversion cable is 1.0mm and the nominal section is 4mm? and the nominal thickness of the three ground wire cores of the frequency conversion cable is 1.0mm and the nominal section is 2.5mm?
Preferably, the control cable is externally wrapped with a polyester tape isolation layer, and the cable pitch diameter ratio is 7-8; The frequency conversion cable i and frequency conversion cable ii are wrapped with polyester tape isolation layer, and the diameter ratio of cable joint is 9- 10.
Preferably, the cable core shielding layer, cable core shielding layer and cable core shielding layer are tinned copper wire braided layer, and the braided density is between 85% and 87%.
Preferably, the light non-woven fabric isolation layer is also included, and the cable core shielding layer, cable core shielding layer and cable core shielding layer are wrapped with the light non-woven fabric isolation layer.
Preferably, the inner protective shell is made of TPEE material and its nominal thickness is 3.0mm.
Preferably, the outer protective shell is made of a TPEE material.
Compared with the prior art, the flat cable with high temperature resistance, bending resistance and wear-resisting coil for frequency conversion device proposed by the invention adopts the above technical scheme and achieves the following technical effects: 1. Two groups of frequency conversion cables are set. The frequency conversion cable core adopts 3+3 structure, and the cable core is equipped with tinned copper wire braid layer outside, the density of which is no less than 85%; 2. The conductor adopts the sixth kind of tinned soft copper wire in accordance with the provisions of GB/T 3956, the twisted structure of the same direction encryption, control cable, frequency conversion cable i, frequency conversion cables ii are twisted with small distance, the control cable center is set with tensile core and other structural design, so that the cable has excellent soft, tensile strength and bending resistance performance. 3. The insulation and protection layer are made of TPEE material, which has extremely high tensile strength, excellent oil resistance and chemical resistance, excellent insulation, excellent resilience, and excellent creep resistance, impact resistance and flexural fatigue resistance. Its working temperature is very wide, which makes the cable have excellent high temperature resistance, cold resistance, flexural resistance, impact resistance, wear resistance and tear resistance.
Drawing 1 is a schematic diagram of the section structure of the invention.
In the drawing: 1. Control cable, 11. First fine soft wire rope, 12. Control cable core, 13.
Cable core shielding layer, 2. Frequency conversion cable i, 21. The first frequency conversion power core, 22. Ground core, 23. Cable core shielding layer, 3. Frequency conversion cable 11, 31.
Second fine soft wire rope, 32. Second frequency conversion power core, 33. Ground core, 34.
Cable core shielding layer, 4. Inner protective shell, 5. Outer protective shell. LU504403
In the present invention, unless otherwise expressly specified and limited, the terms "installation", "connection", "connecting", "fixed", etc., shall be understood broadly, for example, may be fixed, may be detachable, or may be integrated; They can be mechanically connected, they can be electrically connected or they can communicate with each other; It may be directly connected or indirectly connected through an intermediary, or it may be a connection within two components or an interaction between two components, unless otherwise expressly specified. For ordinary technicians in the field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
In the present invention, unless otherwise expressly specified and qualified, the first feature "above" or "below" the second feature may be the first and second feature in direct contact, or the first and second feature in indirect contact through an intermediate medium. Moreover, the first feature is "above", "upwards", and "on the top of" the second feature, but the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is higher horizontally than the second feature. The first feature "below", "in the bottom of", and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is less horizontal than the second feature.
Referring to Drawing 1, the invention provides a flat coiled cable with high temperature resistance, bending resistance and wear resistance for frequency conversion device, including:
Two groups of control cables 1, the control cable 1 includes the first fine soft wire rope 11, eight control cable cores 12 located in the middle and the cable core shielding layer 13 covering the first fine soft wire rope 11, eight control cable core 12; Preferably, eight control cable cores 12 in control cable 1 are arranged outside the first fine soft wire rope 11. Further, the nominal thickness of eight control cable cores 12 in control cable 1 is 1.0mm and the nominal section is 2.5mm? Further, the control cable 1 is externally wrapped with polyester tape isolation layer, and the cable pitch diameter ratio is 7 -8;
Frequency conversion cable 1 2. The frequency conversion cable 1 2 comprises three first frequency conversion power wire cores 21, three ground wire cores 22, and the cable core shielding layer 23 covering the three first frequency conversion power wire cores 21, three ground wire cores 22; Preferably, the three first frequency conversion power wire cores 21 and the three ground wire cores 22 in the frequency control cable 1 and frequency conversion cable 1 2 are alternately arranged in a circular manner. Further, the three first frequency conversion power wire cores 21 in the frequency conversion cable i 2 are set to have nominal thicknesses of 1.2mm and nominal cross sections of 16mm? and the three ground wire cores 22 have nominal thicknesses of 1.0mm and nominal cross sections of 2.5mm? Further, the frequency conversion cable i 2 is externally wrapped with polyester tape isolation layer, and the cable pitch diameter ratio is 9-10.
Frequency conversion cable ii 3, frequency conversion cable ii 3 includes the second soft wire rope 31 in the middle. The three second frequency conversion power wire cores 32, three ground wire cores 33 and the cable core shielding layer 34 covering the second soft wire rope 31, three second frequency conversion power wire cores 32, three ground wire cores 33; The alternating circular circumferential array of three second frequency conversion power wire cores 32 and three ground wire cores 33 in the frequency conversion cable ii 3 are arranged outside the second fine soft wire rope 31. Further, the nominal thickness of the three second frequency conversion power wire core 32 in the frequency conversion cable ii 3 is set to be 1.0mm and the nominal section is
4mm?. The nominal thickness of the three ground wire cores 22 in the frequency conversion cabt&)504403 ii 3 is set to be 1.0mm and the nominal section is 2.5mm?. Further, the frequency conversion cable ii 3 is externally wrapped with polyester tape isolation layer, and the cable pitch diameter ratio is 9-10.
Inner protective shell 4 and outer protective shell 5, control cable 1, frequency conversion cable 1 2, frequency conversion cable ii 3, control cable 1 are arranged from left to right, inner protective shell 4 is squeezed between two groups of control cable 1, frequency conversion cable 1, frequency conversion cable 1 2, frequency conversion cable 11 3, outer protective shell 5 covers the outer protective shell 4. Preferably, the inner protective shell 4 is made of TPEE material and has a nominal thickness of 3.0mm.
For the selection of the above cable conductor: the sixth conductor structure specified in GB/T 3956 is adopted. The material is tinned soft copper wire conforming to GB/T 4910. The conductor stranded is the first bundle wire and double stranded structure, the conductor bundle wire is right, the double stranded direction is right, and the bar distance is stranded.
For the setting of control cable 1 on the left side: There are eight control cable cores 12, including seven white cables and one yellow cable. For the setup of control cable 1 on the right:
There are eight control cable cores 12, including three red cables, three green cables and two yellow cables.
For the setting of frequency conversion cable 1 2, the three first frequency conversion power wire cores 21 are red, yellow and green respectively, and the three ground wire cores 22 are yellow- green. For the setting of frequency conversion cable ii 3: The three second frequency conversion power wire core 32 are red, yellow and green respectively, and the three ground wire cores 33 are yellow-green.
For cable forming: Frequency conversion cable 1 2 and frequency conversion cable ii 3 are formed according to the structure of 3+3, the direction is right, and the insulating layer of polyester belt is wrapped outside, and the diameter ratio of cable joint is 9-10. Control cable 1 is formed according to 8+1 structure, with steel wire rope in the middle and direction to the right. The isolation layer of polyester belt is wrapped around the outside, and the diameter ratio of cable joint is 7-8.
The above cable core shielding layer 13, cable core shielding layer 23 and ground cores 33 are tinned copper wire braided layers with braided densities ranging from 85% to 87%. Cable core shielding layer 13, cable core shielding layer 23 and cable core shielding layer 33 are wrapped with light non-woven insulation layer.
At the same time, the cable is provided with an insulating protective layer, of which the insulating protective layer and the outer protective layer 5 are made of TPEE (thermoplastic polyester elastomer) material, the use of which makes the tensile strength not less than 20N/mm?, tear strength not less than 70kN/m, elongation at break not less than 400%.
However, the scope of protection of the invention is not limited to this, and any technical person familiar with the technical field who makes equivalent substitution or alteration according to the technical scheme of the invention and the idea of the invention within the technical scope disclosed by the invention shall be covered by the scope of protection of the invention.
Claims (10)
1. The invention relates to a flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device, which is characterized in that: 5 Two groups of control cable (1), the control cable (1) comprises a first soft wire rope (11) in the middle, eight control cable cores (12) and covered in the first soft wire rope (11), eight control cable cores (12) outside the cable core shielding layer (13); Frequency conversion cable i (2), the frequency conversion cable 1 (2) comprises three first frequency conversion power wire core (21), three ground wire cores (22), and covered in three first frequency conversion power wire core (21), cable core shielding layer (23) outside the three ground wire cores (22); Frequency conversion cable ii (3), the frequency conversion cable 11 (3) comprises in the middle of the second fine soft wire rope (31), three second frequency conversion power wire core (32), three ground wire core (33) and covered in the second fine soft wire rope (31), three second frequency conversion power wire core (32), three ground wire cores (33) outside the cable core shielding layer (34); Inner protective shell (4) and outer protective shell (5), the control cable (1), frequency conversion cable 1 (2), frequency conversion cable ii (3), control cable (1) arranged along a straight line, the inner protective shell (4) squeezed between the two groups of control cable (1), frequency conversion cable 1 (2), frequency conversion cable ii (3), the outer protective shell (5) covering the inner protective shell (4) externally.
2. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 1, it is characterized in that: The eight control cable cores (12) in the control cable (1) are arranged in a circumferential array outside the first fine soft wire rope (11).
3. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 2, it is characterized in that: The three first frequency conversion power wire cores (21) and three ground wire cores (22) in the frequency conversion cable 1 (2) are circular alternating arrangement; The three second frequency conversion power wire core (32) and three ground wire core (33) in the frequency conversion cable ii (3) are circular alternating circumferential array arranged outside the second fine soft wire rope (31).
4. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 1-3, it is characterized in that: The nominal thickness of the eight control cable cores (12) in the said control cable (1) is
1.0mm and the nominal section is 2.5mm?.
5. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 4, it is characterized in that: The nominal thickness of the three first frequency conversion power core (21) in the frequency conversion cable i (2) is 1.2mm and the nominal section is 16mm? The nominal thickness of the three ground wire cores (22) is 1.0mm and the nominal cross section is 2.5mm?.
6. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 5, it is characterized in that: The nominal thickness of the three second frequency conversion power core (32) in the second frequency conversion cable (3) is 1.0mm and the nominal section is 4mm? The nominal thickness of the three ground wire cores (22) in the frequency conversion cable ii (3) of the frequendy/904403 conversion cable is 1.0mm and the nominal cross section is 2.5mm?.
7. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 6, it is characterized in that: The control cable (1) is externally wrapped with polyester tape isolation layer, and the diameter ratio of cable joint is 7-8; The frequency conversion cable 1 (2) and frequency conversion cable ii (3) are wrapped with polyester tape isolation layer, and the diameter ratio of cable joint is 9-10.
8. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 5-7, it is characterized in that: The cable core shielding layer (13), cable core shielding layer (23) and cable core shielding layer (33) are tinned copper wire braiding layer with a braiding density between 85% and 87%.
9. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 8, it is characterized in that: It also includes a lightweight non-woven fabric isolation layer. The cable core shielding layer (13), cable core shielding layer (23) and cable core shielding layer (33) are wrapped with the lightweight non-woven fabric isolation layer.
10. According to the flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device mentioned in Claim 9, it is characterized in that: The inner protective shell (4) is made of TPEE material and its nominal thickness is 3.0mm; The outer protective shell (5) is made of TPEE material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU504403B1 true LU504403B1 (en) | 2023-12-01 |
Family
ID=82334678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504403A LU504403B1 (en) | 2022-05-12 | 2023-02-22 | A flat coil cable with high temperature resistance, bending resistance and wear resistance for a frequency conversion device |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN114758830A (en) |
| LU (1) | LU504403B1 (en) |
| WO (1) | WO2023131351A1 (en) |
| ZA (1) | ZA202305954B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5330792B2 (en) * | 2008-10-21 | 2013-10-30 | 株式会社フジクラ | Flat cable |
| CN201397696Y (en) * | 2009-04-10 | 2010-02-03 | 安徽天龙电器线缆集团有限公司 | Waterproof type composite flat cable for controlling kinetic energy |
| CN203118538U (en) * | 2013-01-25 | 2013-08-07 | 安徽吉安特种线缆制造有限公司 | Composite anti-splash flat cable with high temperature shielding function used for iron and steel plants |
| JP2016201272A (en) * | 2015-04-10 | 2016-12-01 | 日立金属株式会社 | Noise shield cable |
| CN206849561U (en) * | 2017-06-15 | 2018-01-05 | 江苏上上电缆集团有限公司 | A kind of mobile device controls cable with tensile type plastics |
| CN208819637U (en) * | 2018-11-26 | 2019-05-03 | 河南新昊宝丰电缆科技有限公司 | A kind of wear-resistance and oil-resistance sensor cable |
| CN209591578U (en) * | 2019-03-13 | 2019-11-05 | 四川川东电缆有限责任公司 | Novel variable-frequency electric cable for coal mining machine |
| CN214796905U (en) * | 2021-05-21 | 2021-11-19 | 德汝电缆(上海)有限公司 | Flat trinity reel cable |
| 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 |
-
2022
- 2022-05-12 CN CN202210515394.9A patent/CN114758830A/en active Pending
-
2023
- 2023-02-22 WO PCT/CN2023/077579 patent/WO2023131351A1/en unknown
- 2023-02-22 LU LU504403A patent/LU504403B1/en active IP Right Grant
- 2023-06-05 ZA ZA2023/05954A patent/ZA202305954B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023131351A1 (en) | 2023-07-13 |
| CN114758830A (en) | 2022-07-15 |
| ZA202305954B (en) | 2024-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20231201 |