CN220121536U - High-strength flame-retardant wire - Google Patents
High-strength flame-retardant wire Download PDFInfo
- Publication number
- CN220121536U CN220121536U CN202321469295.8U CN202321469295U CN220121536U CN 220121536 U CN220121536 U CN 220121536U CN 202321469295 U CN202321469295 U CN 202321469295U CN 220121536 U CN220121536 U CN 220121536U
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- CN
- China
- Prior art keywords
- retardant
- outer sheath
- embedded
- wire
- flame
- 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.)
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Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 32
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 20
- 239000010949 copper Substances 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 239000004576 sand Substances 0.000 claims abstract description 19
- 239000010425 asbestos Substances 0.000 claims description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- DFEYYRMXOJXZRJ-UHFFFAOYSA-N sevoflurane Chemical compound FCOC(C(F)(F)F)C(F)(F)F DFEYYRMXOJXZRJ-UHFFFAOYSA-N 0.000 abstract description 3
- 229960002078 sevoflurane Drugs 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 33
- 239000010408 film Substances 0.000 description 5
- 239000010409 thin film Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of wires and cables, in particular to a high-strength flame-retardant wire. The high-strength flame-retardant wire comprises an outer sheath and a wire core arranged in the outer sheath, wherein a plurality of spiral grooves distributed in a ring shape are formed in the outer sheath, and spiral copper strips are embedded in each spiral groove; the protective ball is characterized in that a plurality of uniformly distributed protective balls are embedded in the outer sheath, a film is embedded in the middle of the protective ball, and the ball cavities on two sides of the film are respectively filled with sevoflurane gas and fine sand. When the open fire is induced at the joint of the wire core and the equipment due to overload or failure, the protective ball is burnt and damaged, and at the moment, the heptafluoromethane gas and the fine sand can quickly overflow, so that the fire extinguishing capability of the electric wire can be improved, and meanwhile, the fine sand is arranged outside, so that the heptafluoromethane gas can blow the fine sand, the coverage area of the fine sand is increased, and the flame retardant effect of the rest wire segments of the electric wire is further enhanced.
Description
Technical Field
The utility model relates to the technical field of wires and cables, in particular to a high-strength flame-retardant wire.
Background
The wire refers to a wire for transmitting electric energy, and is divided into a bare wire, an electromagnetic wire and an insulated wire, wherein the conductor is mainly a wire core wire, and the wire has a thin insulating layer and good electromechanical properties, and has heat resistance, moisture resistance, solvent resistance and the like. Different insulating materials are selected to obtain different characteristics, and the quality of the electric wires and the cables is an indispensable material for users in the electricity utilization process, and is directly related to the electricity utilization safety of thousands of households, so that an insulating wire with reliable quality is needed to increase the electricity utilization safety.
In the prior art, part of the structural design is insufficient in protection of the wire core, so that open fire is induced at the joint of the wire core and the electrical equipment due to overload or failure, and at the moment, the flame retardance of the protective layer on the outer layer of the wire core is poor, and the wire core is easily damaged to generate large-scale open fire.
Accordingly, there is a need to provide a new high-strength flame-retardant wire that solves the above-mentioned technical problems.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a high-strength flame-retardant wire.
The high-strength flame-retardant wire provided by the utility model comprises:
an outer sheath, and
the cable core is internally arranged in the outer sheath, a plurality of spiral grooves which are distributed in an annular mode are formed in the outer sheath, and spiral copper strips are embedded in each spiral groove;
the protective ball is characterized in that a plurality of uniformly distributed protective balls are embedded in the outer sheath, part of the balls of the protective balls extend out of the outer sheath, a film is embedded in the middle of the protective balls, and seven-fluoro methane gas and fine sand are respectively filled in ball cavities on two sides of the film.
Preferably, the spherical cavity of the film close to the wire core is filled with heptafluoro methane gas, and the spherical cavity of the film far away from the wire core is filled with fine sand.
Preferably, the ball of the protective ball extending out of the outer sheath portion is embedded with a rubber block.
Preferably, the top and the two side walls of the spiral copper bar are respectively embedded with an arc surface and side bulges which are distributed along the spiral copper bar, the arc surface extends out of the spiral groove and is attached to the outer sleeve surface of the outer sleeve, and the side bulges are propped against the inner groove surfaces at the two sides of the spiral groove.
Preferably, the wire core is fixedly coated with an insulating layer, a shielding layer is fixedly sleeved on the insulating layer, and the shielding layer is made of semiconductor paper.
Preferably, the shielding layer is fixedly sleeved with a heat-resistant layer, and the heat-resistant layer is composed of a crosslinked polyethylene layer with an inner and outer composite structure and a low-smoke halogen-free flame-retardant polyolefin layer.
Preferably, the heat-resistant layer is coated with an asbestos flame-retardant layer, the outer wall of the asbestos flame-retardant layer is embedded with a plurality of annularly distributed rubber rods, and the rubber rods are embedded on the inner sleeve wall of the outer sheath.
Compared with the related art, the high-strength flame-retardant wire provided by the utility model has the following beneficial effects:
1. the protection ball extends out of the sphere of the outer sheath part, and the rubber block is embedded in the protection ball, so that the buffer performance and the friction resistance of the protection ball are improved, when open fire is induced at the joint of the wire core and the equipment due to overload or faults, the protection ball is burnt and damaged, at the moment, the heptafluoromethane gas and the fine sand can quickly overflow, the fire extinguishing capability of an electric wire can be accelerated, and meanwhile, the fine sand is arranged outside, so that the heptafluoromethane gas can blow the fine sand, the coverage area of the fine sand is accelerated, and the flame retardant effect of the rest wire segments of the electric wire is further enhanced;
2. according to the utility model, the spiral copper strip is embedded in the surface of the outer sheath, so that the whole strength of the electric wire is improved, and the spiral copper strip is of an elastic structure and has contractility, so that when the outer sheath is stretched, the spiral copper strip can counteract part of the pulling force, and the tensile resistance of the electric wire is improved.
Drawings
FIG. 1 is a schematic view of a high strength flame retardant wire according to a preferred embodiment of the present utility model;
fig. 2 is a schematic structural view of the outer sheath and the copper bar shown in fig. 1.
Reference numerals in the drawings: 1. an outer sheath; 1a, a spiral groove; 2. a wire core; 3. a spiral copper bar; 3-1, an arc surface; 3-2, side projections; 4. a protective ball; 41. a rubber block; 42. a film; 43. a heptafluoromethane gas; 44. fine sand; 5. an insulating layer; 6. a shielding layer; 7. a heat-resistant layer; 8. an asbestos flame retardant layer; 9. rubber rod.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Specific implementations of the utility model are described in detail below in connection with specific embodiments.
Referring to fig. 1 to 2, a high-strength flame-retardant wire according to an embodiment of the present utility model includes: the cable comprises an outer sheath 1, a cable core 2, a spiral copper bar 3 and a protective ball 4.
In the embodiment of the present utility model, referring to fig. 1, a plurality of spiral grooves 1a are formed on the outer sheath 1, each spiral groove 1a is embedded with a spiral copper bar 3, specifically, the top and two side walls of the spiral copper bar 3 are respectively embedded with an arc surface 3-1 and side protrusions 3-2 distributed along the spiral copper bar 3, the arc surface 3-1 extends out of the spiral groove 1a and is attached to the outer sheath 1, and the side protrusions 3-2 are abutted against the inner groove surfaces on two sides of the spiral groove 1 a.
It should be noted that: because the spiral copper bar 3 is embedded in the surface of the outer sheath 1, the whole strength of the electric wire is achieved, and the spiral copper bar 3 is of an elastic structure and has contractility, when the outer sheath 1 is stretched, the spiral copper bar 3 can counteract part of the pulling force, so that the tensile resistance of the electric wire is improved, the arc-shaped surface 3-1 can protect the spiral groove 1a on the outer sheath 1 from being damaged, and the embedding force of the spiral copper bar 3 in the spiral groove 1a is improved by the side protrusions 3-2.
In the embodiment of the present utility model, referring to fig. 1, a plurality of uniformly distributed protective balls 4 are embedded in the outer sheath 1, a portion of the balls of the protective balls 4 extends out of the outer sheath 1, rubber blocks 41 are embedded in the portions of the balls of the protective balls 4 extending out of the outer sheath 1, a thin film 42 is embedded in the middle of the protective balls 4, the ball cavities on two sides of the thin film 42 are respectively filled with sevoflurane gas 43 and fine sand 44, the ball cavities of the thin film 42 close to the wire core 2 are filled with sevoflurane gas 43, and the ball cavities of the thin film 42 far away from the wire core 2 are filled with fine sand 44;
it should be noted that: the protection ball 4 extends out of the part of the outer sheath 1, and the rubber block 41 is embedded in the protection ball, so that the buffer performance and the friction resistance of the protection ball are improved, when the open fire is induced at the joint of the wire core 2 and equipment due to overload or faults, the protection ball 4 is burnt to be damaged, at the moment, the heptafluoromethane gas 43 and the fine sand 44 can quickly overflow, the fire extinguishing capacity of the electric wire can be accelerated, and meanwhile, the fine sand 44 is arranged outside, so that the heptafluoromethane gas 43 can blow the fine sand 44, the coverage area of the heptafluoromethane gas is accelerated, and the flame retardant effect of the rest wire segments of the electric wire is further enhanced.
In the embodiment of the present utility model, referring to fig. 2, a wire core 2 is disposed in the outer sheath 1, an insulating layer 5 is fixedly coated on the wire core 2, a shielding layer 6 is fixedly sleeved on the insulating layer 5, the shielding layer 6 is made of semiconductor paper, a heat-resistant layer 7 is fixedly sleeved on the shielding layer 6, the heat-resistant layer 7 is composed of a crosslinked polyethylene layer with an inner and outer composite structure and a low smoke halogen-free flame retardant polyolefin layer, an asbestos flame retardant layer 8 is coated on the heat-resistant layer 7, a plurality of rubber rods 9 distributed in a ring shape are embedded on the outer wall of the asbestos flame retardant layer 8, and the rubber rods 9 are embedded on the inner sheath wall of the outer sheath 1.
It should be noted that: the shielding layer 6 is arranged, so that the quality of a signal is not reduced due to interference of external factors when the signal is transmitted, the transmission function of the wire is further improved, the flame retardance and high temperature resistance of the wire are effectively enhanced by the heat-resistant layer 7, the flame retardance of the wire is further enhanced by the cooperation of the asbestos flame-retardant layer 8, and the compression resistance of the wire is enhanced by the rubber rod 9.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. A high strength flame retardant electrical wire, comprising:
an outer sheath (1), and
a wire core (2) arranged in the outer sheath (1), wherein a plurality of spiral grooves (1 a) distributed in a ring shape are formed in the outer sheath (1), and each spiral groove (1 a) is internally embedded with a spiral copper bar (3);
the novel protective ball structure is characterized in that a plurality of uniformly distributed protective balls (4) are embedded in the outer sheath (1), part of the spheres of the protective balls (4) extend out of the outer sheath (1), a film (42) is embedded in the middle of the protective balls (4), and seven-fluoro methane gas (43) and fine sand (44) are respectively filled in ball cavities at two sides of the film (42).
2. The high-strength flame-retardant wire according to claim 1, wherein the spherical cavity of the film (42) close to the wire core (2) is filled with heptafluoromethane gas (43), and the spherical cavity of the film (42) far from the wire core (2) is filled with fine sand (44).
3. The high-strength flame-retardant electric wire according to claim 2, wherein the ball of the protective ball (4) extending out of the portion of the outer sheath (1) is embedded with a rubber block (41).
4. The high-strength flame-retardant wire according to claim 1, wherein the top and the two side walls of the spiral copper bar (3) are respectively embedded with an arc-shaped surface (3-1) and side protrusions (3-2) distributed along the spiral copper bar (3), the arc-shaped surface (3-1) extends out of the spiral groove (1 a) and is attached to the outer sleeve surface of the outer sleeve (1), and the side protrusions (3-2) are propped against the inner groove surfaces on the two sides of the spiral groove (1 a).
5. The high-strength flame-retardant wire according to claim 1, wherein an insulating layer (5) is fixedly coated on the wire core (2), a shielding layer (6) is fixedly sleeved on the insulating layer (5), and the shielding layer (6) is made of semiconductor paper.
6. The high-strength flame-retardant wire according to claim 5, wherein a heat-resistant layer (7) is fixedly sleeved on the shielding layer (6), and the heat-resistant layer (7) is composed of a cross-linked polyethylene layer with an inner and outer composite structure and a low-smoke halogen-free flame-retardant polyolefin layer.
7. The high-strength flame-retardant wire according to claim 6, wherein the heat-resistant layer (7) is coated with an asbestos flame-retardant layer (8), a plurality of annularly-distributed rubber rods (9) are embedded on the outer wall of the asbestos flame-retardant layer (8), and the rubber rods (9) are embedded on the inner sleeve wall of the outer sheath (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321469295.8U CN220121536U (en) | 2023-06-09 | 2023-06-09 | High-strength flame-retardant wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321469295.8U CN220121536U (en) | 2023-06-09 | 2023-06-09 | High-strength flame-retardant wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220121536U true CN220121536U (en) | 2023-12-01 |
Family
ID=88915492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321469295.8U Active CN220121536U (en) | 2023-06-09 | 2023-06-09 | High-strength flame-retardant wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220121536U (en) |
-
2023
- 2023-06-09 CN CN202321469295.8U patent/CN220121536U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |