CN212847812U - Electrical grade aluminum alloy conductor coaxial fire-resistant cable - Google Patents
Electrical grade aluminum alloy conductor coaxial fire-resistant cable Download PDFInfo
- Publication number
- CN212847812U CN212847812U CN202021858482.1U CN202021858482U CN212847812U CN 212847812 U CN212847812 U CN 212847812U CN 202021858482 U CN202021858482 U CN 202021858482U CN 212847812 U CN212847812 U CN 212847812U
- Authority
- CN
- China
- Prior art keywords
- layer
- aluminum alloy
- alloy conductor
- heat
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses an electrician-level aluminum alloy conductor coaxial fire-resistant cable, which comprises an aluminum alloy conductor, wherein the outer wall of the aluminum alloy conductor is sequentially provided with a shielding layer, an insulating layer, a plastic sealing layer, a heat conducting layer, a fire-proof layer and a supporting layer; above-mentioned shielding layer inner wall parcel aluminum alloy conductor, above-mentioned shielding layer outer wall laminating insulating layer, above-mentioned plastic envelope inner wall laminating insulating layer, above-mentioned heat-conducting layer parcel plastic envelope, above-mentioned heat-conducting layer outer wall laminating flame retardant coating, above-mentioned flame retardant coating is equipped with the supporting layer outward for block the burning by the flame retardant coating, be used for giving off heat energy by the heat-conducting layer, with the cable performance of expecting to improve the aluminum alloy conductor replacement copper line, avoid the cable to appear the problem of route interrupt under high temperature environment.
Description
Technical Field
The utility model relates to an aluminum alloy conductor cable, concretely relates to electrician's level aluminum alloy conductor coaxial fire resisting cable.
Background
Coaxial cables can be used for transmission of analog and digital signals, and are suitable for various applications, the most important of which are television transmission, long distance telephone transmission, short distance connection between computer systems, local area networks, and the like; the existing coaxial cable is divided into four layers from inside to outside, namely a central copper wire, a plastic insulator, a mesh-shaped conductive layer and an outer skin layer. The central copper wire and the reticular conducting layer form a current loop.
The existing coaxial cable has a simple structure, and under the relatively complex external environment, because the central copper wire and the mesh-shaped conductive layer are main components for conducting electromagnetic waves in the cable, when the outer skin layer is affected by the outside, for example, under a high-temperature environment, the outer skin layer is easy to deform, so that the internal central copper wire and the mesh-shaped conductive layer are exposed, and even the phenomenon of path interruption occurs. Meanwhile, the copper wire has larger scarcity, and the aluminum alloy modern product needs to replace the copper wire as a conductor, but the aluminum alloy has lower melting point and higher expansion coefficient than the copper, so that the direct application risk is higher, and how to improve the cable of the aluminum alloy conductor is worthy of research.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electrician's level aluminum alloy conductor coaxial fire resisting cable to expect to improve the cable performance with aluminum alloy conductor replacement copper line, avoid the cable to appear the problem that the route was interrupted under high temperature environment.
In order to solve the technical problem, the utility model adopts the following technical scheme:
an electrical aluminum alloy conductor coaxial fire-resistant cable comprises an aluminum alloy conductor, wherein the outer wall of the aluminum alloy conductor is sequentially provided with a shielding layer, an insulating layer, a plastic sealing layer, a heat conducting layer, a fireproof layer and a supporting layer; above-mentioned shielding layer inner wall parcel aluminum alloy conductor, above-mentioned shielding layer outer wall laminating insulating layer, above-mentioned plastic envelope inner wall laminating insulating layer, above-mentioned heat-conducting layer parcel plastic envelope, above-mentioned heat-conducting layer outer wall laminating flame retardant coating, above-mentioned flame retardant coating is equipped with the supporting layer outward for block the burning by the flame retardant coating, be used for giving off heat energy by the heat-conducting layer.
Preferably, the support layer includes a first guard ring and a second guard ring, the first guard ring wraps the second guard ring, and a waterproof film is disposed between the first guard ring and the second guard ring.
A further technical scheme is that a protruding portion is arranged on the first protection ring, a recessed portion corresponding to the protruding portion is arranged on the second protection ring, and the waterproof film is respectively abutted against the protruding portion and the recessed portion.
Preferably, the heat conduction layer includes a heat conduction portion and a supporting leg, the heat conduction portion is disposed at an upper end of the supporting leg, the heat conduction portion contacts the fireproof layer, and the heat conduction portion is attached to the fireproof layer.
The further technical proposal is that the support legs are in an arch bridge shape, and the lower ends of the support legs are contacted with the plastic sealing layer.
Preferably, the aluminum alloy conductor comprises an aluminum alloy core layer, the outer wall of the aluminum alloy core layer is provided with a plastic layer, and the outer wall of the plastic layer is provided with a mesh-shaped conductive layer forming a loop with the aluminum alloy core layer.
Compared with the prior art, the beneficial effects of the utility model are one of following at least:
the utility model discloses an insulating nature of aluminum alloy conductor is guaranteed to the insulating layer, avoids aluminum alloy conductor to appear partial discharge through the shielding layer, improves the inside support intensity of cable through the plastic envelope layer, through the heat-conducting layer to the local heat absorption of cable inlet wire, through the isolated naked light of flame retardant coating, avoids appearing the burning, through the supporting layer as the crust, the user of being convenient for receives and holds or install.
The utility model arranges the waterproof membrane between the first protective ring and the second protective ring, and the supporting layer has waterproof performance through the waterproof membrane; thereby make the waterproof membrane laminating between first guard ring and second guard ring through bellying and depressed part, and be difficult for sliding.
The utility model discloses a heat-conducting portion direct contact plastic-sealed layer is avoided to the stabilizer blade, avoids heat-conducting portion and plastic-sealed layer to appear the thermal bridge reaction through the stabilizer blade, is arch bridge shape through the stabilizer blade, further reduces the inflation risk that plastic-sealed layer probably appears.
The utility model discloses an isolated aluminum alloy sandwich layer of plastic layer and netted conducting layer form the electric current return circuit in order to realize signal and electric current sharing by aluminum alloy sandwich layer and netted conducting layer.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a supporting layer structure.
Fig. 3 is a schematic view of the structure of the heat conducting layer.
Fig. 4 is a schematic diagram of an aluminum alloy conductor structure.
Description of reference numerals:
the heat-insulating and heat-insulating composite material comprises 1-aluminum alloy conductor, 2-shielding layer, 3-insulating layer, 4-plastic package layer, 5-heat conducting layer, 6-fireproof layer, 7-supporting layer, 8-waterproof film, 501-heat conducting part, 502-supporting leg, 701-first protection ring, 702-second protection ring, 703-convex part and 704-concave part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an embodiment of the present invention is an electrical grade aluminum alloy conductor coaxial fire-resistant cable, which includes an aluminum alloy conductor 1, wherein the aluminum alloy conductor 1 is an inner sleeve portion of a coaxial cable made of an existing aluminum alloy conductor. Note that the aluminum alloy conductor 1 has a different electrical resistivity than the copper conductor, and the IACS is different; it is necessary to increase the sectional area of the aluminum alloy conductor 1 to achieve the electrical properties required for the work. The tensile strength of the aluminum alloy conductor 1 approaches to one half of that of the copper conductor, and the density of the aluminum alloy material is smaller than that of the copper conductor, so that even if the ratio of the sectional area of the aluminum alloy conductor 1 to the sectional area of the copper conductor reaches 200%, the weight of the aluminum alloy conductor 1 is lighter than that of the copper conductor, therefore, the tensile strength of the aluminum alloy conductor 1 is superior to that of the copper conductor in the application direction of the cable, and the yield of the aluminum alloy conductor 1 approaches to that of the copper conductor, so that the creep property of the aluminum alloy conductor approaches to that of the copper conductor. The aluminum alloy conductor and the copper conductor are substantially the same in elongation at break.
The outer wall of the aluminum alloy conductor 1 is sequentially provided with a shielding layer 2, an insulating layer 3, a plastic packaging layer 4, a heat conducting layer 5, a fireproof layer 6 and a supporting layer 7; the inner wall of the shielding layer 2 is wrapped with the aluminum alloy conductor 1, wherein the shielding layer 2 is formed by weaving netted metal wires and is used for isolating electromagnetic interference between the wires. Above-mentioned 2 outer wall laminating insulating layers 3 of shielding layer, if the amount of current is great in aluminum alloy conductor 1, its shielding layer 2 is located between aluminum alloy conductor 1 and insulating layer 3, can effectually avoid taking place partial discharge between aluminum alloy conductor 1 and the insulating layer 3.
Above-mentioned 4 inner wall laminating insulating layer 3 of plastic envelope layer makes aluminum alloy conductor 1, shielding layer 2 and insulating layer 3 relatively firm through plastic envelope layer 4, can not appear shake and dislocation risk. In order to ensure the stability after plastic packaging, the heat conduction layer 5 wraps the plastic packaging layer 4, the outer wall of the heat conduction layer 5 is attached to the fireproof layer 6, and the supporting layer 7 is arranged outside the fireproof layer 6 and used for preventing combustion by the fireproof layer 6 and emitting heat energy by the heat conduction layer 5; the fireproof layer 6 is made of the existing fireproof paint or asbestos material, the fireproof layer 6 covers the outer wall of the heat conduction layer 5, and the heat conduction layer 5 can be made of the existing solid heat conduction material.
When the external temperature is too high, such as in a fire scene, the cable temperature is too high, flame is prevented from easily igniting the cable through the fireproof layer 6, heat energy generated by the fireproof layer 6 is absorbed through the heat conduction layer 5 and is transferred to a low-temperature area, and the fireproof performance of the cable is effectively improved.
Based on the above embodiment, referring to fig. 2, another embodiment of the present invention is that, since the supporting layer 7 mainly protects the conductor and the insulating medium, and simultaneously can improve the mechanical strength thereof and reduce the influence of various complex environmental factors such as moisture, high temperature and high pressure on the whole cable, the supporting layer 7 includes the first protection ring 701 and the second protection ring 702, the first protection ring 701 wraps the second protection ring 702, wherein the selection of the materials of the first protection ring 701 and the second protection ring 702 directly determines the characteristics of corrosion resistance, moisture resistance, flame retardance and the like, in order to ensure good mechanical strength and reduce the influence of external environmental factors such as moisture, high temperature and high pressure on the cable, the materials of the first protection ring 701 and the second protection ring 702 generally adopt polyvinyl chloride, polyethylene or polyurethane.
The waterproof membrane 8 is arranged between the first protective ring 701 and the second protective ring 702, and the supporting layer 7 of the cable can be gradually corroded in the long-term use process, so that the supporting layer 7 is divided into the first protective ring 701 and the second protective ring 702, the waterproof membrane 8 is arranged between the first protective ring 701 and the second protective ring 702, when the first protective ring 701 is gradually corroded in the long-term use process or the waterproof membrane 8 is exposed under the unexpected condition, the relevant cable needs to be replaced, and meanwhile, the waterproof performance of the supporting layer 7 is also improved due to the arrangement of the waterproof membrane 8.
Further, in order to ensure the good attaching performance of the waterproof film 8, the first protection ring 701 is provided with the protrusion 703, the second protection ring 702 is provided with the recess 704 corresponding to the protrusion 703, the waterproof film 8 respectively abuts against the protrusion 703 and the recess 704, the waterproof film 8 is bent at the protrusion 703 and the recess 704, on the one hand, the attaching performance of the waterproof film 8 is improved, the waterproof film 8 is prevented from being folded during assembly, and then after the first protection ring 701 is bonded with the second protection ring 702, the abutting surface can be improved, and the first protection ring 701 and the second protection ring 702 are prevented from being dislocated.
Based on the above embodiment, referring to fig. 3, another embodiment of the present invention is that, the heat conduction layer 5 includes a heat conduction portion 501 and a supporting leg 502, the heat conduction portion 501 is disposed on the upper end of the supporting leg 502, wherein the heat conduction portion 501 may be an alloy sheet, a heat conduction glue is coated on the surface of the heat conduction portion, the supporting leg 502 is a heat insulation material, such as extruded glass fiber, the heat conduction portion 501 contacts the fireproof layer 6, and heat conduction is realized on one side, and the heat conduction portion 501 is attached to the fireproof layer 6, so as to ensure the contact surface between the heat conduction portion 501 and the fireproof layer 6, and improve the heat bridge acting surface.
Further, the supporting leg 502 is in an arch bridge shape, the lower end of the supporting leg 502 is in contact with the plastic package layer 4, the thermal bridge reaction between the heat conducting portion 501 and the plastic package layer 4 is avoided through the supporting leg 502, and the supporting leg is in the arch bridge shape, so that the expansion risk possibly occurring in the plastic package layer 4 is further reduced.
Based on the above embodiment, referring to fig. 4, another embodiment of the present invention is that the aluminum alloy conductor 1 includes an aluminum alloy core layer 101, the outer wall of the aluminum alloy core layer 101 is provided with a plastic layer 102, and the outer wall of the plastic layer 102 is provided with a mesh-shaped conductive layer 103 forming a loop with the aluminum alloy core layer 101, so that the aluminum alloy conductor 1 is a coaxial cable and has good noise suppression characteristics.
The alloy core layer 101 in the cable is a main component for conducting electromagnetic waves, so the requirement on the material of the alloy core layer 101 is much higher than that of an outer conductor, so that a conductor formed by the alloy core layer 101 needs to ensure certain conductivity, and the alloy core layer 101 is usually made of a spiral smooth aluminum alloy which is complete and uniform in material.
The plastic layer 102 is used as a peripheral medium to form a medium for electromagnetic signal transmission, and the plastic layer 102 must have a certain mechanical strength so that the alloy core layer 101 and the mesh-shaped conductive layer 103 are coaxial with each other, and the plastic layer 102 is made of polyethylene because polyethylene has the advantages of low medium attenuation, high voltage resistance, moisture resistance, corrosion resistance and light weight.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. The utility model provides an electrician's level aluminum alloy conductor coaxial fire resisting cable, includes aluminum alloy conductor (1), its characterized in that: the outer wall of the aluminum alloy conductor (1) is sequentially provided with a shielding layer (2), an insulating layer (3), a plastic packaging layer (4), a heat conducting layer (5), a fireproof layer (6) and a supporting layer (7); shielding layer (2) inner wall parcel aluminum alloy conductor (1), shielding layer (2) outer wall laminating insulating layer (3), plastic-sealed coating (4) inner wall laminating insulating layer (3), heat-conducting layer (5) parcel plastic-sealed coating (4), heat-conducting layer (5) outer wall laminating flame retardant coating (6), flame retardant coating (6) are equipped with supporting layer (7) outward for block the burning by flame retardant coating (6), be used for giving off heat energy by heat-conducting layer (5).
2. The electrical grade aluminum alloy conductor coaxial fire-resistant cable of claim 1, wherein: the supporting layer (7) comprises a first protective ring (701) and a second protective ring (702), the first protective ring (701) wraps the second protective ring (702), and a waterproof membrane (8) is arranged between the first protective ring (701) and the second protective ring (702).
3. The electrical grade aluminum alloy conductor coaxial fire-resistant cable of claim 2, wherein: the waterproof structure is characterized in that a protruding portion (703) is arranged on the first protective ring (701), a recessed portion (704) corresponding to the protruding portion (703) is arranged on the second protective ring (702), and the waterproof film (8) abuts against the protruding portion (703) and the recessed portion (704) respectively.
4. The electrical grade aluminum alloy conductor coaxial fire-resistant cable of claim 1, wherein: the heat conduction layer (5) includes heat conduction portion (501) and stabilizer blade (502), heat conduction portion (501) set up in stabilizer blade (502) upper end, heat conduction portion (501) contact flame retardant coating (6), heat conduction portion (501) and flame retardant coating (6) are laminated mutually.
5. The electrical grade aluminum alloy conductor coaxial fire-resistant cable of claim 4, wherein: the supporting legs (502) are in an arch bridge shape, and the lower ends of the supporting legs (502) are in contact with the plastic packaging layer (4).
6. The electrical grade aluminum alloy conductor coaxial fire-resistant cable of claim 1, wherein: the aluminum alloy conductor (1) comprises an aluminum alloy core layer (101), a plastic layer (102) is arranged on the outer wall of the alloy core layer (101), and a mesh-shaped conductive layer (103) forming a loop with the aluminum alloy core layer (101) is arranged on the outer wall of the plastic layer (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021858482.1U CN212847812U (en) | 2020-08-31 | 2020-08-31 | Electrical grade aluminum alloy conductor coaxial fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021858482.1U CN212847812U (en) | 2020-08-31 | 2020-08-31 | Electrical grade aluminum alloy conductor coaxial fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212847812U true CN212847812U (en) | 2021-03-30 |
Family
ID=75142471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021858482.1U Active CN212847812U (en) | 2020-08-31 | 2020-08-31 | Electrical grade aluminum alloy conductor coaxial fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212847812U (en) |
-
2020
- 2020-08-31 CN CN202021858482.1U patent/CN212847812U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212847812U (en) | Electrical grade aluminum alloy conductor coaxial fire-resistant cable | |
| CN216980204U (en) | Waterproof rigid mineral insulation fireproof cable | |
| CN210692172U (en) | Flexible low-smoke halogen-free medium-high voltage single-core fireproof cable | |
| CN104681177A (en) | Novel fireproof cable and novel flexible multi-core fireproof pre-branch cable | |
| CN213092876U (en) | Polyvinyl chloride insulation power cable | |
| CN108320847A (en) | A kind of damp-proof high fire-retardance single-core cable | |
| CN211742696U (en) | Polyolefin insulated communication cable | |
| CN208806079U (en) | Used in nuclear power station three proofings electrical equipment cable | |
| CN107833677A (en) | A kind of flexible mineral insulation double shield shell-less fire proof power cable | |
| CN210271899U (en) | Electric wire with partition plate | |
| CN215643799U (en) | Novel fireproof flame-retardant cable | |
| CN212113264U (en) | Novel environment-friendly cable | |
| CN205487505U (en) | Inorganic mineral BTLY insulated cable of chain armor in aluminum alloy area | |
| CN216772895U (en) | Crosslinked polyethylene insulated halogen-free flame-retardant environment-friendly fire-resistant power cable | |
| CN220208584U (en) | Environment-friendly halogen-free low-smoke flame-retardant fireproof crosslinked polyethylene insulated polyolefin sheath cable | |
| CN215417613U (en) | Electric automatization engineering is with cable that fire prevention fire behaviour is good | |
| CN219105815U (en) | Low-smoke flame-retardant fire-resistant power cable | |
| CN216161507U (en) | Polyolefin medium-voltage cable for ships | |
| CN216928107U (en) | Novel environment-friendly tinned copper stranded wire | |
| CN219642571U (en) | High-performance multipurpose environment-friendly wire and cable | |
| CN215988197U (en) | Aluminum alloy co-extrusion insulation irradiation crosslinking halogen-free low-smoke flame-retardant power cable | |
| CN208444638U (en) | The fire-retardant anti-interference composite cable of water proof type | |
| CN220290501U (en) | Power cable for low-voltage distribution system of building residence | |
| CN216212392U (en) | Novel conductor wire explosion-proof cable | |
| CN217061494U (en) | Fluoroplastic insulation installation cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |