CN210349389U - Fire-resistant shielding control cable - Google Patents
Fire-resistant shielding control cable Download PDFInfo
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- CN210349389U CN210349389U CN201921591952.XU CN201921591952U CN210349389U CN 210349389 U CN210349389 U CN 210349389U CN 201921591952 U CN201921591952 U CN 201921591952U CN 210349389 U CN210349389 U CN 210349389U
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Abstract
The utility model relates to the cable related field, in particular to a fire-resistant shielding control cable, which comprises an electric transmission wire, the electric transmission wire is arranged in the middle of the inner cavity of the cable and is provided with a plurality of channels, one of the electric transmission wires is arranged at the axis position of the cable, the other electric transmission wires are annularly arranged in equal radian with the axis as the central line, the electric transmission wire comprises a mineral insulation fire-resistant layer and oxygen-free copper, the oxygen-free copper is a wire core which is arranged in the inner cavity of the mineral insulation fire-resistant layer in a penetrating way, the outer side of the electric transmission wire rod is sleeved with a fireproof wrapping tape, the electric transmission wire rod is tightly hooped in the fireproof wrapping tape, the fireproof wrapping tape is characterized in that a metal composite shielding layer is sleeved on the outer side of the fireproof wrapping tape, a flame-retardant high polymer sheath is sleeved on the outer side of the metal composite shielding layer, and a glass fiber filler is filled in a gap between the electric transmission wire and the fireproof wrapping tape. The utility model discloses effectual sinle silk to the inner chamber is protected, reaches multiple fire-retardant and shielded effect.
Description
Technical Field
The utility model relates to a cable correlation field specifically is a fire-resistant shielding control cable.
Background
The invention of the fire makes the human beings advance in civilization, along with the development of the human beings in civilization and the development of the society, the human beings rely on living and space occasions to be higher and higher in various buildings such as houses, office buildings, entertainment occasions and the like, so the prevention and the control of the loss of the fire to the lives and properties are very important, the basic reason of the fire caused by the electric wires and the cables is that the insulating sheath layer of the cable is made of organic materials such as polyvinyl chloride and the like, the problems of flammability, ageing and the like are caused, and the cable sheath is easy to generate gas harmful to the environment in the combustion process, thereby causing great damage to the environment.
Chinese patent (publication No. CN205621502U) discloses a flame-retardant fire-resistant shielding control cable, wherein the outer sheath is made of radiation cross-linked polyolefin material, so that the cable does not generate halogen element in case of combustion, thereby effectively protecting the environment, but the patent has certain defects, the shielding effect of the whole cable is not in place, and the stability of the whole cable is not sufficient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire-resistant shielding control cable to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a fire-resistant shielding control cable comprises an electric transmission wire, a fire-resistant wrapping tape, a metal composite shielding layer, a fire-resistant high polymer sheath and a glass fiber filler, the electric transmission wire is arranged in the middle of the inner cavity of the cable and is provided with a plurality of channels, one of the electric transmission wires is arranged at the axis position of the cable, the other electric transmission wires are annularly arranged in equal radian with the axis as the central line, the electric transmission wire comprises a mineral insulation fire-resistant layer and oxygen-free copper, the oxygen-free copper is a wire core which is arranged in the inner cavity of the mineral insulation fire-resistant layer in a penetrating way, the outer side of the electric transmission wire rod is sleeved with a fireproof wrapping tape, the electric transmission wire rod is tightly hooped in the fireproof wrapping tape, the fireproof wrapping tape is characterized in that a metal composite shielding layer is sleeved on the outer side of the fireproof wrapping tape, a flame-retardant high polymer sheath is sleeved on the outer side of the metal composite shielding layer, and a glass fiber filler is filled in a gap between the electric transmission wire and the fireproof wrapping tape.
As a further aspect of the present invention: the oxygen-free copper is composed of a plurality of micro-alloyed copper single lines, and the micro-alloyed copper is required to have a smooth surface without the defects of oil stain, gaps and the like.
As a further aspect of the present invention: the fireproof wrapping tape is formed by twisting insulated wire cores woven by nylon, the pitch diameter ratio is not more than 10, and the double-layer non-woven fabric belt is adopted for reverse tightening, so that the inner cavity electric transmission wire is ensured to be fixed together.
As a further aspect of the present invention: the metal composite shielding layer is formed by arranging and twisting a plurality of tinned copper wires together, and the pitch diameter ratio of the twisted wires is required to be not more than 10. The interference of an external magnetic field can be effectively reduced, the cable structure is kept stable, short-circuit current is transmitted, the cable can be used as a ground wire, the number of cable cores is reduced, and the manufacturing and installation cost is saved.
As a further aspect of the present invention: the flame-retardant high polymer sheath adopts phosphorus-containing epoxy resin and a condensate thereof. The organic phosphorus flame retardant decomposes in the presence of flame to generate phosphoric acid-metaphosphoric acid-polymetaphosphoric acid, and a phosphoric acid layer is generated in the decomposition process to form a nonvolatile protective layer to cover the combustion surface, so that oxygen supply is isolated, and the combustion is stopped. The polymetaphosphoric acid can promote the combustion decomposition of high polymer to carbonization to generate great amount of water, so preventing the generation of flame.
As a further aspect of the present invention: the glass fiber filler is polymerized by glass fiber nylon, and has the advantages of good surface gloss, high rigidity, large specific gravity, creep resistance, low warpage, warping resistance, high temperature resistance, hot air resistance, aging resistance, hot oil resistance, wear resistance and good thermal stability.
Compared with the prior art, the beneficial effects of the utility model are that:
this application overall structure is the integral structure, and the combination steadiness is high between each group layer to effectual sinle silk to the inner chamber is protected, reaches multiple fire-retardant and shielded effect, and uses high stability environmental protection material, and prior art compares, has optimized the influence to the environment.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. Also, the drawings and the description are not intended to limit the scope of the present concepts in any way, but rather to illustrate the concepts of the present disclosure to those skilled in the art by reference to specific embodiments.
Fig. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
In the figure: the cable comprises 1-electric transmission wire, 2-mineral insulation fire-resistant layer, 3-oxygen-free copper, 4-fire-resistant wrapping tape, 5-metal composite shielding layer, 6-flame-retardant high polymer sheath and 7-glass fiber filler.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, examples of which are shown in the drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements, unless otherwise indicated.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. 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.
Referring to fig. 1 and 2, a fire-resistant shielding control cable includes an electrical transmission wire 1, a fire-resistant wrapping tape 4, a metal composite shielding layer 5, a flame-retardant high polymer sheath 6, and a glass fiber filler 7.
The electric transmission wire rod 1 is arranged in the middle of an inner cavity of a cable, the electric transmission wire rod 1 is provided with a plurality of channels, one channel of the electric transmission wire rod 1 is arranged at the axis position of the cable, the rest electric transmission wire rods 1 are annularly arranged in an equal radian mode by taking the axis as the central line, the electric transmission wire rod 1 comprises a mineral insulation fire-resistant layer 2 and oxygen-free copper 3, the oxygen-free copper 3 is arranged in the inner cavity of the mineral insulation fire-resistant layer 2 in a penetrating mode by taking a wire core as a wire core, the oxygen-free copper 3 is composed of a plurality of micro-alloyed copper single wires, and the micro-alloyed. The electrical transmission wire 1 is composed of inorganic substances (metallic copper and magnesium oxide powder), which cannot cause fire and burn or aid combustion, and the melting point of copper is 1083 ℃ and the melting point of the mineral insulating layer is more than 1000 ℃. Therefore, the cable can continuously maintain power supply under the condition of fire near the melting point of copper, and is a fire-proof cable in a true sense. And can pass BS6387C, W, Z tests.
The outside cover of electricity transmission wire rod 1 is equipped with fire-resistant around band 4, 1 lock hoop of electricity transmission wire rod is in fire-resistant around band 4, fire-resistant insulating core transposition of weaving by nylon is constituteed around band 4 adoption, and the pitch ratio is not more than 10 to adopt double-deck non-woven fabric strap reverse to tighten, guarantee that inner chamber electricity transmission wire rod 1 is fixed together.
The fireproof cable is characterized in that a metal composite shielding layer 5 is sleeved on the outer side of the fireproof wrapping tape 4, a flame-retardant high polymer sheath 6 is sleeved on the outer side of the metal composite shielding layer 5, and a glass fiber filler 7 is filled in a gap between the electric transmission wire 1 and the fireproof wrapping tape 4.
The glass fiber filler 7 is polymerized by glass fiber nylon, and has the advantages of good surface gloss, high rigidity, large specific gravity, creep resistance, low warpage, warping resistance, high temperature resistance, hot air resistance, aging resistance, hot oil resistance, wear resistance and good thermal stability.
The electricity transmits wire rod 1, fire-resistant around band 4 and glass fiber filler 7 constitution integral structure wholly to make the cable be integral structure, overall stability is higher, has avoided the problem of transmitting 1 activity of wire rod of electricity.
The metal composite shielding layer 5 is formed by arranging and twisting a plurality of tinned copper wires together, and the pitch diameter ratio of the twisted wires is required to be not more than 10. The interference of an external magnetic field can be effectively reduced, the cable structure is kept stable, short-circuit current is transmitted, the cable can be used as a ground wire, the number of cable cores is reduced, and the manufacturing and installation cost is saved.
The flame-retardant high polymer sheath 6 adopts phosphorus-containing epoxy resin and a condensate thereof. The organic phosphorus flame retardant decomposes in the presence of flame to generate phosphoric acid-metaphosphoric acid-polymetaphosphoric acid, and a phosphoric acid layer is generated in the decomposition process to form a nonvolatile protective layer to cover the combustion surface, so that oxygen supply is isolated, and the combustion is stopped. The polymetaphosphoric acid can promote the combustion decomposition of high polymer to carbonization to generate great amount of water, so preventing the generation of flame. The epoxy resin has excellent chemical stability, dimensional stability, electrical insulation and corrosion resistance, and can be widely applied to various fields of chemical industry, light industry, machinery, electronics, space navigation and the like. However, the general epoxy resin has an oxygen index of only 19.8, belongs to a flammable material, and therefore has flame retardance and no halogen, and achieves the effect of environmental protection. The content of phosphorus element in the molecular skeleton of the epoxy resin is not more than 1 percent, and the specific curing agent is matched for use, so that the flame retardance of a curing system can meet the international standard ul94v-0 grade used by electric products.
This application overall structure is the integral structure, and the combination steadiness is high between each group layer to effectual sinle silk to the inner chamber is protected, reaches multiple fire-retardant and shielded effect, and uses high stability environmental protection material, and prior art compares, has optimized the influence to the environment.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A fire-resistant shielding control cable comprises an electric transmission wire (1), a fire-resistant wrapping tape (4), a metal composite shielding layer (5), a flame-retardant high polymer sheath (6) and a glass fiber filler (7), and is characterized in that the electric transmission wire (1) is arranged in the middle of an inner cavity of the cable and is provided with a plurality of channels, one channel of the electric transmission wire (1) is arranged in the axial position of the cable, the rest electric transmission wires (1) are annularly arranged in equal radian by taking the axial line as the central line, the electric transmission wire (1) comprises a mineral insulation fire-resistant layer (2) and oxygen-free copper (3), the oxygen-free copper (3) is a wire core penetrating through the inner cavity of the mineral insulation fire-resistant layer (2), the outer side of the electric transmission wire (1) is sleeved with the fire-resistant wrapping tape (4), and the electric transmission wire (1) is tightly hooped in the fire-resistant wrapping tape, fireproof is equipped with metal composite shielding layer (5) around covering tape (4) outside cover, the outside cover of metal composite shielding layer (5) is equipped with fire-retardant high polymer sheath (6), it has glass fiber filler (7) to transmit electric wire rod (1) and fireproof to fill around the clearance intussuseption of covering tape (4).
2. Fire-resistant shielded control cable according to claim 1, characterized in that the oxygen-free copper (3) consists of several single lines of micro-alloyed copper, which is required to have a smooth surface free from defects such as oil stains and gaps.
3. The fire-resistant shielding control cable of claim 1, wherein the fire-resistant wrapping tape (4) is formed by twisting insulated wire cores woven by nylon, the pitch diameter ratio is not more than 10, and the fire-resistant wrapping tape is reversely fastened by adopting a double-layer non-woven cloth tape to ensure that the inner cavity electric transmission wires (1) are fixed together.
4. The fire-resistant shielding control cable according to claim 1, wherein the metal composite shielding layer (5) is formed by arranging and twisting a plurality of tinned copper wires together, and the pitch ratio of the twisted wires is not more than 10.
5. The fire-resistant shielded control cable according to claim 1, wherein the flame-retardant polymer sheath (6) is composed of phosphorus-containing epoxy resin and a cured product thereof.
6. Fire-resistant shielded control cable according to claim 1, characterized in that the glass fibre filler (7) is polymerized from glass fibre nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921591952.XU CN210349389U (en) | 2019-09-24 | 2019-09-24 | Fire-resistant shielding control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921591952.XU CN210349389U (en) | 2019-09-24 | 2019-09-24 | Fire-resistant shielding control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210349389U true CN210349389U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921591952.XU Active CN210349389U (en) | 2019-09-24 | 2019-09-24 | Fire-resistant shielding control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210349389U (en) |
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2019
- 2019-09-24 CN CN201921591952.XU patent/CN210349389U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220415 Address after: 365400 No. 37, Gongye South Road, Chengnan Town, Ninghua County, Sanming City, Fujian Province Patentee after: Fujian Chaoyang wire and cable Co.,Ltd. Address before: 350208 Liyushan Industrial Zone, Heshang Town, Changle District, Fuzhou City, Fujian Province Patentee before: FUZHOU TONGERDA ELECTRIC WIRE & CABLE Co.,Ltd. |
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| TR01 | Transfer of patent right |