CN113488239B - Flame-retardant Gao Wenxiang-sheath flexible cable made of thermosetting resin composite material - Google Patents
Flame-retardant Gao Wenxiang-sheath flexible cable made of thermosetting resin composite material Download PDFInfo
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- CN113488239B CN113488239B CN202110660075.2A CN202110660075A CN113488239B CN 113488239 B CN113488239 B CN 113488239B CN 202110660075 A CN202110660075 A CN 202110660075A CN 113488239 B CN113488239 B CN 113488239B
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- retardant
- power core
- cable
- water
- flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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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
- 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
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Abstract
The invention discloses a flame-retardant Gao Wenxiang-sleeve flexible cable made of a thermosetting resin composite material, which belongs to the field of cables and comprises a power core conductor, a power core insulator, a metal braiding shield, an inner sheath and an outer sheath, wherein the power core insulator and the metal braiding shield are sequentially coated on the outer surface of the power core conductor from inside to outside, a flame-retardant high-temperature-resistant layer is arranged between the inner sheath and the outer sheath, arc-shaped water absorbing cotton is annularly arranged on the inner side of the flame-retardant high-temperature-resistant layer, a water collecting frame is arranged on the arc-shaped water absorbing cotton, a supporting piece is arranged between any adjacent one of the water collecting frames, and a flexible adhesive tape is embedded on the outer side of the supporting piece. According to the invention, the water collecting frame, the water drain groove, the arc-shaped water absorbing cotton and the supporting piece are arranged, so that the situation that the service life of the cable is reduced due to the fact that water permeates into the cable core of the cable can be effectively avoided, and the effect of improving the waterproof performance of the cable can be achieved.
Description
Technical Field
The invention relates to the field of cables, in particular to a flame-retardant Gao Wenxiang-sheath flexible cable made of a thermosetting resin composite material.
Background
A cable made of one or more mutually insulated conductors and an outer insulating protective layer, wires for transmitting power or information from one place to another. The wires of each group are insulated from each other and are often twisted around a center and covered entirely with a highly insulating coating. The cable has an inner energized, outer insulated feature. The thermosetting resin-based composite material is a composite material compounded by taking various thermosetting resins as a matrix and adding various reinforcing fibers. The reinforcing fibers increase the strength and stiffness of the composite material and the resin bonds the fibers together to transfer loads between the reinforcing fibers. In addition, toughness, interlaminar shear strength, compressive strength, thermal stability, oxidation resistance, moisture absorption and molding processability of the composite material also depend mainly on the resin matrix.
The existing thermosetting resin composite material cable has better flame-retardant and high-temperature-resistant performance, but has poorer waterproof performance, the cable for the coal mining machine has poorer service environment and higher waterproof requirement on the cable, and in order to improve the waterproof performance of the cable, the invention provides a flame-retardant Gao Wenxiang-sleeve flexible cable of the thermosetting resin composite material.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to solve the technical problem of providing a flame-retardant Gao Wenxiang-sheath flexible cable made of a thermosetting resin composite material, which can effectively solve the problem of reduced service life of the cable caused by water seepage of the cable.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a fire-retardant resistant Gao Wenxiang cover flexible cable of thermosetting resin composite, includes power core conductor, power core insulation, metal braiding shielding, inner sheath and oversheath, power core conductor surface has power core insulation and metal braiding shielding by interior cladding in proper order to outside, be equipped with fire-retardant high temperature resistant layer between inner sheath and the oversheath, fire-retardant high temperature resistant layer inboard is the annular and is equipped with the arc cotton that absorbs water, be equipped with the water catch frame on the arc cotton that absorbs water, all be equipped with support piece between the arbitrary adjacent of water catch frame, the support piece outside has inlayed flexible adhesive tape.
Preferably, the raw materials of the flame-retardant and high-temperature-resistant layer comprise polytetrafluoroethylene, carbon fiber, polyvinyl chloride, polyether-ether-ketone, glass fiber and adhesive.
Preferably, glass fiber fillers are arranged on the inner side of the inner sheath, and the glass fiber fillers are only filled between any adjacent water collecting frames.
Preferably, the flexible glue strip is in contact with the inner sheath.
Preferably, the power core conductor is clamped between any adjacent water collecting frames through the supporting piece.
Preferably, a hollow groove is formed in the middle of the water collecting frame.
Preferably, the outer side surface of the arc-shaped absorbent cotton is uniformly provided with a water drain groove along the direction of the central line of the cable.
3. Advantageous effects
(1) According to the invention, the water collecting frame, the water drain groove, the arc-shaped water absorbing cotton and the supporting piece are arranged, when the cable is arranged in a severe environment, the cable is easy to enter water under the long-term condition because the cable is soaked in water, most of water is firstly absorbed by the arc-shaped water absorbing cotton and the water collecting frame after the cable enters water under the action of the arc-shaped water absorbing cotton, when the cable is dragged, the water collected in the arc-shaped water absorbing cotton and the water collecting frame is extruded and discharged outwards again, so that the situation that the service life of the cable is reduced due to the fact that the water permeates the cable core of the cable is effectively avoided, and the effect of improving the waterproof performance of the cable can be achieved.
(2) According to the invention, the power core conductor is arranged between the adjacent water collecting frames and is limited by the support piece and the flexible adhesive tape, so that the stability of the power core conductor is improved, and the extrusion resistance of the cable is greatly improved by the hollow groove and the water collecting frames.
(3) According to the invention, the flame-retardant and high-temperature-resistant layer is arranged, and the thermosetting resin and various composite materials are mixed, so that the flame retardance and high-temperature resistance of the cable can be improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of an arcuate absorbent cotton of the present invention;
FIG. 3 is a schematic diagram showing the connection of the arc-shaped absorbent cotton and the water collecting frame;
fig. 4 is a schematic view of the clamping connection of the support member and the flexible adhesive tape.
Reference numerals: 1. a power core conductor; 2. the power core is insulated; 3. a metal braided shield; 4. a support; 5. an inner sheath; 6. a glass fiber filler; 7. a water collecting frame; 8. a hollow groove; 9. arc-shaped absorbent cotton; 10. a water drain tank; 11. a flame retardant and high temperature resistant layer; 12. an outer sheath; 13. a flexible adhesive tape.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, an embodiment of the present invention is provided: a flame-retardant Gao Wenxiang-sheath flexible cable of a thermosetting resin composite material comprises a power core conductor 1, a power core insulator 2, a metal braiding shield 3, an inner sheath 5 and an outer sheath 12, wherein glass fiber fillers 6 are arranged on the inner side of the inner sheath 5, and the glass fiber fillers 6 are only filled between any adjacent water collecting frames 7. The quantity of catchment frame 7 and support piece 4 equals, and catchment frame 7 and support piece 4 alternately set up, and support piece 4 and catchment frame 7 form and stabilize the restriction to power core conductor 1, receive extrusion or draw the in-process at the cable, and the pliability of cavity groove 8 and catchment frame 7 itself can improve the anti extrusion performance of cable, power core conductor 1 surface has power core insulation 2 and metal braiding shielding 3 from interior to exterior cladding in proper order, be equipped with fire-retardant high temperature resistant layer 11 between inner sheath 5 and the oversheath 12, the raw materials on fire-retardant high temperature resistant layer 11 includes polytetrafluoroethylene, carbon fiber, polyvinyl chloride, polyether ether ketone, glass fiber and adhesive group become. Specifically, 10-20 parts of polytetrafluoroethylene, 5-8 parts of carbon fiber, 10-15 parts of polyether-ether-ketone, 10-25 parts of glass fiber, 1-2 parts of adhesive, and the polytetrafluoroethylene has the characteristics of acid resistance, alkali resistance, resistance to various organic solvents, high temperature resistance and the like, has a melting point as high as 327 ℃, can be used stably at-180-250 ℃ for a long time, is used as one of the composite materials of the flame-retardant high-temperature-resistant layer 11, and can improve the flame-retardant, high-temperature-resistant and corrosion-resistant performances of the cable;
the fire-retardant high temperature resistant layer 11 inboard is the annular and is equipped with arc cotton 9 that absorbs water, arc cotton 9 that absorbs water evenly locates the inner sheath 5 outside, be equipped with water collecting frame 7 between the adjacent arc cotton 9 that absorbs water, water collecting frame 7 locates between the power core conductor 1, and water collecting frame 7 is the circular arc that sets up around its middle part symmetry, through locating between the adjacent water collecting frame 7 with power core conductor 1 to cooperation support piece 4 restricts power core conductor 1, has improved the stability of power core conductor 1, and cavity groove 8 and water collecting frame 7, makes the extrusion resistance of cable obtain very big improvement, arc cotton 9 lateral surface that absorbs water evenly is equipped with the hydrophobic groove 10 along cable central line direction. The water-draining tank 10 is arranged, redundant water absorbed by the arc-shaped water-absorbing cotton 9 can be led into the water-collecting frame 7, the water-collecting frame 7 is arranged on the arc-shaped water-absorbing cotton 9, and the hollow tank 8 is arranged in the middle of the water-collecting frame 7. The utility model discloses a cable is characterized by including support piece 4, support piece 4 and flexible adhesive tape 13, support piece 4 all is equipped with support piece 4 between arbitrary adjacent of catchment frame 7, support piece 4 is approximately "T" font, and support piece 4's outer tip and the contact of arc cotton 9 that absorbs water, and support piece 4 locates the middle part of arc cotton 9 that absorbs water, sets up support piece 4, when the cable receives to draw, through support piece 4 and catchment frame 7's setting, can play the effect of protection power core conductor 1, provides the effect of resisting cable tension, support piece 4 outside has inlayed flexible adhesive tape 13. The flexible adhesive tape 13 is made of rubber, through the arrangement of the flexible adhesive tape 13, the contact area between the support piece 4 and the arc-shaped absorbent cotton 9 is small, the support piece 4 is arranged in the middle of the arc-shaped absorbent cotton 9, water entering a cable can be led into the water collecting frame 7 from the arc-shaped absorbent cotton 9 to two sides, the water collecting frame 7 is integrally formed, the water storage capacity is large, and the power core conductor 1 can be effectively protected, and the flexible adhesive tape 13 is in contact with the inner sheath 5. The power core conductor 1 is clamped between any adjacent water collecting frames 7 through the supporting piece 4.
Working principle: the utility model provides a fire-retardant resistant Gao Wenxiang cover flexible cable of thermosetting resin composite, during the use, the cable is under abominable environment, one side of cable and ground contact, the infiltration water easily, through the effect of arc absorbent cotton 9, the cable is after getting into water, firstly through the absorption of arc absorbent cotton 9 and catchment frame 7 to most moisture content, when the cable receives to drag, collect the moisture content in arc absorbent cotton 9 and catchment frame 7, receive the extrusion, discharge outward once more, because catchment frame 7 is integrated into one piece processing, its water storage is big, and can effectively protect the cable core of cable, the life of cable has been ensured.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments will fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (5)
1. The utility model provides a fire-retardant resistant Gao Wenxiang cover flexible cable of thermosetting resin composite, includes power core conductor (1), power core insulation (2), metal braiding shielding (3), inner sheath (5) and oversheath (12), its characterized in that: the utility model discloses a power core conductor, including power core conductor (1), inner sheath (5) and outer sheath (12) are equipped with fire-retardant high temperature resistant layer (11) between power core insulation (2) and metal braiding shielding (3) by interior cladding to outer in proper order, fire-retardant high temperature resistant layer (11) inboard is annular and is equipped with arc cotton (9) that absorb water, be equipped with on arc cotton (9) that absorbs water and collect water frame (7), all be equipped with support piece (4) between arbitrary one of water frame (7) adjacently, flexible adhesive tape (13) have been inlayed in support piece (4) outside, inner sheath (5) inboard has glass fiber filler (6), glass fiber filler (6) are only filled between arbitrary adjacent water collecting frame (7), arc cotton (9) lateral surface evenly is equipped with hydrophobic groove (10) along cable central line direction, fire-retardant high temperature resistant layer (11) inboard is annular and is equipped with arc cotton (9), arc cotton (9) evenly locates the inner sheath (5) outside, adjacent be equipped with between arc cotton (9) that absorbs water and collect water frame (7), power core (7) are located around the circular arc conductor (7) between the power core (1) that absorbs water and set up between the circular arc conductor.
2. The flame-retardant Gao Wenxiang-sheath flexible cable of a thermosetting resin composite material according to claim 1, wherein the raw materials of the flame-retardant and high-temperature-resistant layer (11) comprise polytetrafluoroethylene, carbon fibers, polyvinyl chloride, polyether-ether-ketone, glass fibers and an adhesive.
3. A flame retardant Gao Wenxiang jacketed flexible cable of thermosetting resin composite material according to claim 1, wherein the flexible glue strip (13) is in contact with the inner sheath (5).
4. A flame retardant Gao Wenxiang jacket flexible cable of a thermosetting resin composite material according to claim 1, characterized in that the power core conductor (1) is clamped between any adjacent water collection shelves (7) by means of a support (4).
5. The flame-retardant Gao Wenxiang jacketed flexible cable of thermosetting resin composite material as claimed in claim 1, wherein the middle part of the water collecting frame (7) is provided with a hollow groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660075.2A CN113488239B (en) | 2021-06-15 | 2021-06-15 | Flame-retardant Gao Wenxiang-sheath flexible cable made of thermosetting resin composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660075.2A CN113488239B (en) | 2021-06-15 | 2021-06-15 | Flame-retardant Gao Wenxiang-sheath flexible cable made of thermosetting resin composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113488239A CN113488239A (en) | 2021-10-08 |
| CN113488239B true CN113488239B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110660075.2A Active CN113488239B (en) | 2021-06-15 | 2021-06-15 | Flame-retardant Gao Wenxiang-sheath flexible cable made of thermosetting resin composite material |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3279206B2 (en) * | 1996-12-16 | 2002-04-30 | 住友電気工業株式会社 | Flame-retardant resin composition, insulated wire, shielded wire and coated tube using the same |
| CN106981338A (en) * | 2017-05-11 | 2017-07-25 | 成都兰腾科技有限公司 | A kind of high-effective water-proof power cable |
| CN209804295U (en) * | 2019-05-21 | 2019-12-17 | 江苏红峰电缆集团有限公司 | Flame-retardant power cable with good insulating property |
| CN210404608U (en) * | 2019-10-14 | 2020-04-24 | 无等高新电子(无锡)有限公司 | Anti-aging PVC heat-shrinkable sleeve |
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- 2021-06-15 CN CN202110660075.2A patent/CN113488239B/en active Active
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