Check patentability & draft patents in minutes with Patsnap Eureka AI!

Flexible mineral insulated fireproof cable

A mineral insulated, fire-resistant cable technology, applied in the direction of insulated cables, insulators, insulated conductors, etc., can solve the problems of fillers, high cable cores, and easy deformation, etc., to improve heat dissipation, ensure fire protection efficiency, and facilitate processing Effect

Inactive Publication Date: 2021-10-22
ANHUI YIHE CABLE
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This solution solves the problem that the outer sheath of the cable tends to become soft when encountering external high temperatures, and is easily deformed and damaged when squeezed by external objects, resulting in a decrease in the fire protection efficiency of the cable; at the same time, during the production process, the stranded wire The equipment twists and compresses the cables, and the temperature of the compressed cable core itself is high, which is inconvenient for the next step of cable processing operations, and the high temperature cable core is easy to affect the filling, thereby reducing the cable's temperature. The question of overall fire protection efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible mineral insulated fireproof cable
  • Flexible mineral insulated fireproof cable
  • Flexible mineral insulated fireproof cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Through the operation of the rotating column 10 of the stranding equipment, a plurality of insulated wire cores are stranded to form a cable core, and the cable core is cooled and cooled, and at the same time, the magnetic interference test is performed on the cable core by a spark tester. The cooled cable core, the fire-proof and heat-insulating filling layer 4 is one of metal hydrate aluminum hydroxide and aluminum hydroxide; the metal hydrate degradation temperature is about 350 degrees Celsius, and the heat transfer is lower than Celsius, and the metal hydrate will Free water is released, and when heat is transferred to the metal hydrate at 350 degrees Celsius, a large amount of water molecules will be released, absorbing a large amount of heat, and reducing the internal temperature of the cable. When the water molecules are completely released, the metal hydrate will form a porous medium compound, and the porous medium will It has excellent heat insulation performan...

Embodiment 2

[0052] The above-mentioned wire twisting equipment includes a base 17, the middle part of the top surface of the base 17 is fixedly equipped with a fixed deck 9, and one side of the fixed deck 9 is provided with a twisting mechanism and a compression deck, and the two ends of the top surface of the base 17 The first driving mechanism 18 and the second driving mechanism 12 are fixedly installed respectively, and a cavity is opened inside the base 17, and a cooling mechanism 14 and a transmission mechanism 16 for driving the second driving mechanism 12 are arranged in the middle of the cavity.

[0053] The above-mentioned wire twisting mechanism includes a rotating column 10 that is in transmission connection with the fixed bracket 9 and a wire twisting reel 11 arranged on a base 17 .

[0054] One end of the above-mentioned base 17 close to the second driving mechanism 12 is provided with a second mounting hole, the top surface of the base 17 is provided with a first mounting hol...

Embodiment 3

[0057] The above heat dissipation mechanism 14 includes a driving motor 1402 and a first limiting plate 1404 located at the bottom of the cavity, the output end of the driving motor 1402 is fixedly connected with a first transmission shaft 1405, and the first transmission shaft 1405 moves through the first limiting plate 1404 And it is fixedly connected with the fan shaft of the second fan 15, the second bevel gear 1403 is fixedly connected on the first transmission shaft 1405, the second bevel gear 1403 is meshed with the first bevel gear 1401, and the central axis of the first bevel gear 1401 is connected with the The fan shaft of the first blower fan 13 is fixedly connected; the first drive shaft 1405 is driven to run by the drive motor 1402, so that the second blower fan 15 runs to suck the air from the outside into the cavity, and then cooperates with the second bevel gear 1403 and the first bevel gear 1401 is meshed, so that the first fan 13 runs to take out the air in th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a flexible mineral insulated fireproof cable which comprises a copper core conductor, a mineral insulating layer and insulating reinforcing layers are sequentially arranged outside the copper core conductor, and a cabling wrapping layer, an inner protective layer, a fireproof layer and a sheath layer are sequentially arranged on the outer side of the insulating reinforcing layers. A fireproof heat-insulation filling layer is arranged between the multiple insulating reinforcing layers and the cabling wrapping layer, the insulating reinforcing layers and the mineral insulating layers provide fireproof protection for the copper core conductors, through matching with the fireproof heat-insulation filling layer, the fireproof heat-insulation filling layer can carry out good fireproof protection on the cable cores, and meanwhile the fireproof heat-insulation filling layer is wrapped, so that the cable is prevented form signal interference. A driving motor operates to drive the first transmission shaft to operate, so that a second fan operates to suck external air into the cavity, and a first fan operates to take out the air in the cavity, so that the air in the cavity forms convection, and the heat dissipation effect of the driving motor in the cavity is improved.

Description

technical field [0001] The invention relates to the field of cables, in particular to a flexible mineral insulated fireproof cable. Background technique [0002] It is usually a rope-like cable twisted by several or groups of wires (at least two in each group), each group of wires is insulated from each other, and is often twisted around a center, and the entire outer surface is covered with a high degree of insulation overlay. The cable has the characteristics of internal electrification and external insulation. [0003] The Chinese patent with the publication number CN205211441U discloses an environmentally friendly, energy-saving and fireproof cable. The conductor is twisted with several copper wires or aluminum wires or aluminum alloy wires. layer, temperature-insulation and waterproof shielding layer, fire-resistant layer and environmental protective sheath layer, a compressive and tensile layer can be added between the fire-resistant layer and the environmental prote...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01B7/29H01B7/295H01B7/02H01B7/04H01B7/17H01B3/08H01B3/28H01B13/00H01B13/02H01B13/06H01B13/22
CPCH01B7/292H01B7/295H01B7/0225H01B7/0291H01B3/082H01B3/28H01B7/04H01B7/17H01B13/0207H01B13/0036H01B13/06H01B13/22H01B13/221
Inventor 李峰吴福道肖尚玉
Owner ANHUI YIHE CABLE
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com