CN214796905U - Flat trinity reel cable - Google Patents
Flat trinity reel cable Download PDFInfo
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- CN214796905U CN214796905U CN202121094916.XU CN202121094916U CN214796905U CN 214796905 U CN214796905 U CN 214796905U CN 202121094916 U CN202121094916 U CN 202121094916U CN 214796905 U CN214796905 U CN 214796905U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model discloses a flat trinity reel cable, the reel cable includes the flexible sheath, is provided with tensile enhancement layer, power cord unit, optical cable unit and data cable unit in the flexible sheath, tensile enhancement layer, power cord unit, optical cable unit and data cable unit are arranged side by side; the optical cable, the data cable and the power cable are distributed in parallel, the structure is compact and stable, the optical cable has the advantages of being integrated with communication lines, good in winding performance, compact and stable in structure, anti-interference, low-friction, capable of integrating optical fiber communication, data communication, power supply guarantee and an integrated composite communication cable and the like, and can be applied to intelligent robots and intelligent equipment image acquisition and data transmission wiring systems. The novel oil-resistant flexible special outer sheath is adopted, so that the soft flame-retardant flexible outer sheath can be stored at low temperature and is flame-retardant. The weather-resistant rubber flat cable weather-resistant cable with the copper wire shielding can resist severe environment conditions, is smaller in space required by the flat cable than a round cable, smaller in bending radius, shielded by the copper wire weaving and resistant to electromagnetic interference.
Description
Technical Field
The utility model belongs to the technical field of flat reel cable, concretely relates to flat trinity reel cable.
Background
A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires. The cable is typically a rope-like cable made up of several or groups of conductors twisted together, each group being insulated from the other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation. The cable often includes optical fiber communication, data communication and power supply guarantee, and the development of the optical fiber communication technology is rapidly carried out, and the optical fiber sensing technology is an important mark for measuring the national informatization degree. The optical fiber sensing technology is widely applied to the fields of military affairs, national defense, aerospace, industrial and mining enterprises, energy environmental protection, industrial control, medicine and health, metering test, building, household appliances and the like, and has a wide market. There are hundreds of fiber sensing technologies in the world, and physical quantities such as temperature, pressure, flow, displacement, vibration, rotation, bending, liquid level, speed, acceleration, sound field, current, voltage, magnetic field, radiation and the like realize sensing with different performances.
In an electric control conduction system at present, cables for data conduction are relatively independent, and the winding performance is different; with the development and application of intelligent control, communication cables with stable quality, reliability and suitability for high-frequency multidirectional mechanical motion data signal transmission are required to be ensured in the aspects of data transmission, image acquisition and power supply, and meanwhile, integrated optical fiber communication, data communication, power supply guarantee and integrated composite communication cables with centralized communication lines, excellent winding performance, compact and stable structure and low friction are required.
In the actual mechanical motion cable transmission process, a communication cable with stable quality and reliability and suitable for high-frequency multidirectional mechanical motion data signal transmission is required to guarantee, and meanwhile, a communication line is required to be concentrated, the winding performance is excellent, the structure is compact and stable, the friction is low, and the optical fiber communication, the data communication, the power supply guarantee and the integrated composite communication cable are integrated, so that the flat three-in-one reel cable is provided for solving the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flat trinity reel cable, tensile enhancement layer, power cord unit, optical cable unit and data cable unit make this cable can satisfy the transmission demand of carrying out data transmission and optical fiber transmission simultaneously, have that communication line concentrates, the winding performance is good, compact structure is stable, anti-interference, low friction's advantages such as the integration optical fiber communication, data communication, power guarantee and integrative compound communication cable to solve the problem among the above-mentioned background art and propose prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a flat three-in-one reel cable comprises a flexible sheath, wherein a tensile reinforcement layer, a power line unit, an optical cable unit and a data cable unit are arranged in the flexible sheath, and the tensile reinforcement layer, the power line unit, the optical cable unit and the data cable unit are arranged side by side;
the tensile reinforced layer comprises a soft steel wire and a polyethylene inner sheath, the polyethylene inner sheath is sleeved outside the soft steel wire, and the tensile reinforced layer is used for resisting the tensile force applied to the reel cable so as to ensure that the reel cable has enough structural strength;
the power line unit comprises a copper power supply wire core, a shielding layer and a polyethylene inner sheath, the shielding layer is sleeved outside the copper power supply wire core, the polyethylene inner sheath is positioned in the middle of the copper power supply wire core and the shielding layer, and the power line unit is used as a power supply line of the reel cable and supplies power for equipment using the reel cable;
the optical cable unit comprises a reinforced core wire, an optical fiber sheath and an optical fiber protective sleeve, wherein the optical fiber protective sleeve is sleeved outside the reinforced core wire, the optical fiber is arranged outside the optical fiber protective sleeve, a polyethylene inner sheath is sleeved outside the optical fiber, the optical fiber protective sleeve comprises a stainless steel sleeve and a loose sleeve, the stainless steel sleeve is sleeved outside the reinforced core wire, the loose sleeve is sleeved outside the stainless steel sleeve, and the optical cable unit is used for carrying out optical fiber signal transmission on equipment using the reel cable;
the data cable unit includes data line sinle silk, shielding layer and polyethylene inner sheath, the outside at the data line sinle silk is established to the shielding layer cover, the polyethylene inner sheath is located the intermediate position of data line sinle silk and shielding layer, the data cable unit is used for carrying out data signal transmission to the equipment that uses this reel cable.
Preferably, the flexible sheath is a polyethylene insulating sheath or a butyronitrile composite sheath, a wire hole is formed in the flexible sheath, and the tensile reinforcing layer, the power line unit, the optical cable unit and the data cable unit are all located in the wire hole.
Preferably, the width of the section of the flexible sheath is 110 +/-5 mm, and the height of the section of the flexible sheath is 30 +/-2 mm.
Preferably, the diameter of the cross section of the copper power supply wire core is 35mm2The cross-sectional diameter of the reinforcing core wire is 40mm2。
Preferably, the soft steel wire of the tensile reinforcement layer is a galvanized soft steel wire, and the shielding layer is a galvanized copper wire shielding layer.
Preferably, the cable unit is provided as an optical fiber unit having twelve groups of optical fibers therein, and the optical fiber unitThe cross-sectional diameter of the optical fiber is 2.5mm2。
Preferably, a filling paste layer is arranged between the optical fiber protective sleeve and the polyethylene inner sheath of the optical cable unit, and twelve groups of optical fibers are located in the filling paste layer.
Preferably, the sides of the two sides of the cross section of the flexible sheath are arranged in a semicircular shape, and the tensile reinforced layer, the power line unit, the optical cable unit and the data cable unit are arranged at equal intervals.
Preferably, the surfaces of the copper power supply wire core and the data wire core are subjected to silver plating or tin plating treatment.
The utility model discloses a technological effect and advantage: the utility model provides a flat trinity reel cable compares with prior art, has following advantage:
through the composite design of the structures such as the tensile reinforced layer, the power line unit, the optical cable unit, the data cable unit and the like, the tensile reinforced layer is formed by compounding a soft steel wire and a polyethylene inner sheath; the power line unit is formed by sleeving a copper power supply wire core, a shielding layer and a polyethylene inner sheath; the data cable unit is formed by compounding a data wire core, a shielding layer and a polyethylene inner sheath; the tensile reinforced layer, the power line unit, the optical cable unit and the data cable unit enable the cable to meet the transmission requirements of data transmission and optical fiber transmission at the same time;
conductors of the power line unit and the optical cable unit are subjected to surface silver plating and tin plating treatment, so that the transmission quality of signals and power is improved; the tensile reinforcement layer enhances the tensile and anti-bending performance; optical cable, data cable, power cable parallel distribution, compact structure is stable, has that communication line is concentrated, the performance of winding is good, compact structure is stable, anti-interference, low friction fuse advantages such as optical fiber communication, data communication, power guarantee and integrative compound communication cable, can be applied to intelligent robot, smart machine image acquisition, data transmission wiring system, uses extremely thin copper wire, has improved the conducting ability, and the polyethylene insulation sheath or the butyronitrile compound sheath frictional force that outside set up are littleer.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
Fig. 1 is a schematic view of the external structure of the flat three-in-one drum cable of the present invention;
FIG. 2 is a schematic cross-sectional view of the flat three-in-one drum cable of the present invention;
fig. 3 is a schematic structural diagram of the optical cable unit of the present invention;
FIG. 4 is a schematic view of a partial internal structure of the flat three-in-one drum cable of the present invention;
fig. 5 is an enlarged schematic view of a portion a in fig. 4 according to the present invention.
In the figure: 1. a drum cable; 2. a flexible sheath; 3. a tensile reinforcement layer; 4. a power line unit; 5. an optical cable unit; 6. a data cable unit; 7. a shielding layer; 8. a polyethylene inner sheath; 9. a wire hole; 31. a mild steel wire; 41. a copper power supply wire core; 51. reinforcing the core wire; 52. an optical fiber; 53. an optical fiber jacket; 54. a stainless steel sleeve; 55. loosening the sleeve; 56. an optical fiber protective sleeve; 57. filling the paste layer; 61. and a data wire core.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The present invention provides embodiments as shown in figures 1-5:
a flat three-in-one reel cable 1 comprises a flexible sheath 2, wherein a tensile reinforced layer 3, a power line unit 4, an optical cable unit 5 and a data cable unit 6 are arranged in the flexible sheath 2, and the tensile reinforced layer 3, the power line unit 4, the optical cable unit 5 and the data cable unit 6 are arranged side by side;
the tensile reinforced layer 3 comprises a soft steel wire 31 and a polyethylene inner sheath 8, the polyethylene inner sheath 8 is sleeved outside the soft steel wire 31, and the tensile reinforced layer 3 is used for resisting the tensile force applied to the reel cable 1 so as to ensure that the reel cable 1 has enough structural strength;
the power line unit 4 comprises a copper power supply wire core 41, a shielding layer 7 and a polyethylene inner sheath 8, the shielding layer 7 is sleeved outside the copper power supply wire core 41, the polyethylene inner sheath 8 is positioned in the middle of the copper power supply wire core 41 and the shielding layer 7, and the power line unit 4 is used as a power supply line of the reel cable 1 and supplies power for equipment using the reel cable 1;
the optical cable unit 5 comprises a reinforced core wire 51, an optical fiber 52, an optical fiber sheath 53 and an optical fiber sheath 56, the optical fiber sheath 56 is sleeved outside the reinforced core wire 51, the optical fiber 52 is arranged outside the optical fiber sheath 56, the polyethylene inner sheath 8 is sleeved outside the optical fiber 52, the optical fiber sheath 56 comprises a stainless steel sleeve 54 and a loose sleeve 55, the stainless steel sleeve 54 is sleeved outside the reinforced core wire 51, the loose sleeve 55 is sleeved outside the stainless steel sleeve 54, and the optical cable unit 5 is used for carrying out optical fiber signal transmission on equipment using the reel cable 1;
Through the composite design of the structures of the tensile reinforced layer 3, the power line unit 4, the optical cable unit 5, the data cable unit 6 and the like, the tensile reinforced layer 3 is formed by compounding a soft steel wire 31 and a polyethylene inner sheath 8; the power line unit is formed by sleeving a copper power supply wire core 41, a shielding layer 7 and a polyethylene inner sheath 8; the data cable unit 6 is formed by compounding a data wire core 61, a shielding layer 7 and a polyethylene inner sheath 8; the tensile reinforced layer 3, the power line unit 4, the optical cable unit 5 and the data cable unit 6 enable the cable to meet the transmission requirements of data transmission and optical fiber transmission at the same time;
conductors of the power line unit 4 and the optical cable unit 5 are subjected to surface silver plating and tin plating treatment, so that the transmission quality of signals and power is improved; the tensile reinforcement layer 3 enhances tensile and bending resistance; optical cable, data cable, power cable parallel distribution, compact structure is stable, has that communication line is concentrated, the performance of winding is good, compact structure is stable, anti-interference, low friction fuse advantages such as optical fiber communication, data communication, power guarantee and integrative compound communication cable, can be applied to intelligent robot, smart machine image acquisition, data transmission wiring system, uses extremely thin copper wire, has improved the conducting ability, and the polyethylene insulation sheath or the butyronitrile compound sheath frictional force that outside set up are littleer.
The flat trinity reel cable in this application in specific application: the cable is suitable for use indoors as a control and power cable for crane and conveyor systems. Compared with round cables, the closely laid core wire can achieve a smaller bending radius. The outer sheath of the cable enables it to be used in low temperature situations. The cable is also suitable for installation in elevators and cranes as long as the suspension length does not exceed 35m and the travel speed does not exceed 1.6 m/s. The outer sheath is extremely resistant to oils, acids and bases. The cable adopts a special structural design and can be used as a power and control cable to be installed on occasions such as a track, a crane, logistics transportation and the like.
The use condition of the crane is as follows: when the hoisting cables are arranged in a straight line: when the free use length is more than 35 meters and the running speed is more than 1.6 m/s; the increase of a bearing element in the cable is considered, and the bearing element is generally a galvanized soft steel wire rope or a fiber rope such as aramid yarn and the like; when the hoisting cable is arranged in a quincunx twisted manner, the free suspension length is more than 80 meters, and the running speed is 4m/s-10m/s, a bearing element is added in the cable, wherein the element is generally a galvanized flexible steel wire rope; by adopting the novel oil-resistant flexible special outer sheath, the flame-retardant flexible cable can be still stored at a low temperature of 15 ℃ and is flame-retardant. The weather-resistant rubber flat cable weather-resistant cable with the copper wire shielding can resist severe environment conditions, is smaller in space required by the flat cable than a round cable, smaller in bending radius, shielded by the copper wire weaving and resistant to electromagnetic interference.
The power supply of various mobile power devices in the industries of hoisting, transportation, machinery, gas mines and the like with the ambient temperature of-40 to 70 ℃ is connected with a garbage control signal for illumination and the like. Has the following characteristics: the insulation and sheath are made of nitrile-butadiene composite. The flexibility, corrosion resistance, cold resistance and other performances of the cable are improved. And steel wire ropes or other bearing elements can be added on two sides of the wire core according to the requirements of customers.
The drum cable is used as a bucket wheel machine cable and is used for power connection, control signal illumination and the like of various mobile power devices in the industries of hoisting, transportation, machinery, gas, mine, and the like with the working voltage below 450/750V level and the ambient temperature of-40-70 ℃;
this reel cable still can regard as power plant bucket-wheel stacker reclaimer to roll up the letter cable, power plant stacker reclaimer receive and releases the cable, power plant bucket-wheel stacker reclaimer receive and releases the cable, power plant stacker reclaimer tow chain cable, power plant bucket-wheel stacker reclaimer drag cable, stock ground bucket-wheel stacker reclaimer reel cable, QL series reclaimer reel cable, DQL series bucket-wheel stacker reclaimer reel cable, DQLK series ore bucket-wheel stacker reclaimer reel cable, DBK series bucket-wheel ore stacker reel cable.
The external diameter ratio is greatly reduced, the space is saved, the weight is reduced, the cost is saved by a small-specification disc tool, a guide wheel and a driving motor, tension is required to be applied to the cable no matter the cable is wound up, wound out or drawn out, the central bearing reinforcing core relieves the tension and ensures that the freely suspended cable is wound up, wound out and deflected in a long distance; the outer jacket makes the cable resistant to ozone and ultraviolet radiation and resistant to oils, acids and other solvents, the cable can be used in dry or wet rooms and outdoors and also for mobile equipment such as fast moving container cranes, in lifting equipment, in travelable large and excavator ground down-hole mining equipment.
The drum cable has stronger voltage impact resistance, can bear frequency conversion clock pulse voltage cable and has good impact property, can bear frequency conversion clock pulse voltage cable and has good shielding property, effectively eliminates electromagnetic interference and reduces noise shielding property of a frequency converter, effectively eliminates electromagnetic interference and reduces noise shielding property of the frequency converter, effectively eliminates electromagnetic interference and reduces noise of the frequency converter to ensure stable operation of a system, is widely used for ensuring stable operation of systems such as metallurgy and electric power petrochemical industry, and is widely used for ensuring stable operation of systems such as metallurgy and electric power petrochemical industry.
The flexible sheath 2 is a polyethylene insulating sheath or a butyronitrile composite sheath, a wire hole 9 is formed in the flexible sheath 2, and the tensile reinforcing layer 3, the power line unit 4, the optical cable unit 5 and the data cable unit 6 are all located in the wire hole 9.
The width of the section of the flexible sheath 2 is 110 +/-5 mm, and the height of the section of the flexible sheath 2 is 30 +/-2 mm; the diameter of the cross section of the copper power supply wire core 41 is 35mm2The cross-sectional diameter of the reinforcing core wire 51 is 40mm2(ii) a The soft steel wire 31 of the tensile reinforcement layer 3 is a galvanized soft steel wire, and the shielding layer 7 is a galvanized copper wire shielding layer; the optical cable unit 5 is provided as an optical fiber unit having twelve groups of optical fibers 52 inside, and the cross-sectional diameter of the optical fibers 52 is 2.5mm2。
A filling paste layer 57 is arranged between the optical fiber protective sleeve 56 of the optical cable unit 5 and the polyethylene inner sheath 8, and twelve groups of optical fibers 52 are positioned in the filling paste layer 57; the two side edges of the cross section of the flexible sheath 2 are arranged in a semicircular shape, and the tensile reinforcement layer 3, the power line unit 4, the optical cable unit 5 and the data cable unit 6 are arranged at equal intervals; the surfaces of the copper power supply wire core 41 and the data wire core 61 are subjected to silver plating or tin plating treatment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (9)
1. The utility model provides a flat trinity reel cable, reel cable (1) include flexible sheath (2), be provided with tensile enhancement layer (3), power cord unit (4), optical cable unit (5) and data cable unit (6) in flexible sheath (2), its characterized in that: the tensile reinforced layer (3), the power line unit (4), the optical cable unit (5) and the data cable unit (6) are arranged side by side;
the tensile reinforcement layer (3) comprises a soft steel wire (31) and a polyethylene inner sheath (8), the polyethylene inner sheath (8) is sleeved outside the soft steel wire (31), and the tensile reinforcement layer (3) is used for resisting tensile force borne by the reel cable (1) so as to ensure that the reel cable (1) has sufficient structural strength;
the power line unit (4) comprises a copper power supply wire core (41), a shielding layer (7) and a polyethylene inner sheath (8), the shielding layer (7) is sleeved outside the copper power supply wire core (41), the polyethylene inner sheath (8) is located in the middle of the copper power supply wire core (41) and the shielding layer (7), and the power line unit (4) serves as a power supply line of the reel cable (1) and provides power supply for equipment using the reel cable (1);
the optical cable unit (5) comprises a reinforced core wire (51), an optical fiber (52), an optical fiber sheath (53) and an optical fiber sheath (56), the optical fiber sheath (56) is sleeved outside the reinforced core wire (51), the optical fiber (52) is arranged outside the optical fiber sheath (56), a polyethylene inner sheath (8) is sleeved outside the optical fiber (52), the optical fiber sheath (56) comprises a stainless steel sleeve (54) and a loose sleeve (55), the stainless steel sleeve (54) is sleeved outside the reinforced core wire (51), the loose sleeve (55) is sleeved outside the stainless steel sleeve (54), and the optical cable unit (5) is used for carrying out optical fiber signal transmission on equipment using the reel cable (1);
data cable unit (6) include data line sinle silk (61), shielding layer (7) and polyethylene inner sheath (8), the outside at data line sinle silk (61) is established in shielding layer (7) cover, polyethylene inner sheath (8) are located the intermediate position of data line sinle silk (61) and shielding layer (7), data cable unit (6) are used for carrying out data signal transmission to the equipment that uses this reel cable (1).
2. The flat three-in-one spool cable according to claim 1, wherein: the flexible sheath (2) is a polyethylene insulating sheath or a butyronitrile composite sheath, a wire hole (9) is formed in the flexible sheath (2), and the tensile reinforcing layer (3), the power line unit (4), the optical cable unit (5) and the data cable unit (6) are all located in the wire hole (9).
3. The flat three-in-one reel cable of claim 2, wherein: the width of the cross section of the flexible sheath (2) is 110 +/-5 mm, and the height of the cross section of the flexible sheath (2) is 30 +/-2 mm.
4. The flat three-in-one spool cable according to claim 1, wherein: the diameter of the cross section of the copper power supply wire core (41) is 35mm2The cross-sectional diameter of the reinforcing core wire (51) is 40mm2。
5. The flat three-in-one spool cable according to claim 1, wherein: the soft steel wire (31) of the tensile reinforced layer (3) is set to be a galvanized soft steel wire, and the shielding layer (7) is set to be a galvanized copper wire shielding layer.
6. The flat three-in-one spool cable according to claim 1, wherein: the optical cable unit (5) is an optical fiber unit with twelve groups of optical fibers (52) inside, and the cross-sectional diameter of each optical fiber (52) is 2.5mm2。
7. The flat three-in-one spool cable according to claim 6, wherein: a filling paste layer (57) is arranged between the optical fiber protective sleeve (56) of the optical cable unit (5) and the polyethylene inner sheath (8), and twelve groups of optical fibers (52) are located in the filling paste layer (57).
8. The flat three-in-one spool cable according to claim 1, wherein: the flexible sheath (2) is characterized in that the sides of the two sides of the cross section of the flexible sheath are semicircular, and the tensile reinforcement layer (3), the power line unit (4), the optical cable unit (5) and the data cable unit (6) are arranged at equal intervals.
9. The flat three-in-one spool cable according to claim 1, wherein: the surfaces of the copper power supply wire core (41) and the data wire core (61) are subjected to silver plating or tin plating treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121094916.XU CN214796905U (en) | 2021-05-21 | 2021-05-21 | Flat trinity reel cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121094916.XU CN214796905U (en) | 2021-05-21 | 2021-05-21 | Flat trinity reel cable |
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| CN214796905U true CN214796905U (en) | 2021-11-19 |
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| CN202121094916.XU Active CN214796905U (en) | 2021-05-21 | 2021-05-21 | Flat trinity reel cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023131351A1 (en) * | 2022-05-12 | 2023-07-13 | 安徽华能电缆集团有限公司 | High-temperature-resistant, bending-resistant and wear-resistant reeling flat cable for variable frequency device |
| CN117831837A (en) * | 2024-03-01 | 2024-04-05 | 云南百冠电线电缆有限公司 | Anti-creeping separable double-layer insulated wire with tin-plated copper conductor and processing technology |
-
2021
- 2021-05-21 CN CN202121094916.XU patent/CN214796905U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023131351A1 (en) * | 2022-05-12 | 2023-07-13 | 安徽华能电缆集团有限公司 | High-temperature-resistant, bending-resistant and wear-resistant reeling flat cable for variable frequency device |
| CN117831837A (en) * | 2024-03-01 | 2024-04-05 | 云南百冠电线电缆有限公司 | Anti-creeping separable double-layer insulated wire with tin-plated copper conductor and processing technology |
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