CN201327734Y - Damp proof co-axial cable - Google Patents
Damp proof co-axial cable Download PDFInfo
- Publication number
- CN201327734Y CN201327734Y CNU2008201662343U CN200820166234U CN201327734Y CN 201327734 Y CN201327734 Y CN 201327734Y CN U2008201662343 U CNU2008201662343 U CN U2008201662343U CN 200820166234 U CN200820166234 U CN 200820166234U CN 201327734 Y CN201327734 Y CN 201327734Y
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- coaxial cable
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Abstract
The utility model relates to co-axial cable techniques, and aims to provide a damp proof co-axial cable. The structure of the damp proof co-axial cable is sequentially composed of an inner conductor, an insulating layer, an outer conductor and a protective sleeve from inside to outside, wherein the insulating layer separates the inner conductor and the outer conductor, the outside of the outer conductor is covered by the protective sleeve with a two-layer structure, the outer layer of the protective sleeve is a polyvinyl chloride layer, the inner layer is an aluminium plastic compound belt layer, and the polyvinyl chloride layer covers the outside surface of the aluminium plastic compound belt layer in longitudinal and annular way. By employing the longitudinally covered hot-melt aluminium plastic compound belt and the polyvinyl chloride comprehensive protecting sleeve layer, the utility model greatly improves radial damp proof performance of cables. Simultaneously, the aluminium plastic compound belt can increase shielding performance of the cables, compound water repellent yarns and aluminum-magnesium alloy wires are free from affecting normal properties of the cables and increasing outer diameters of the cables, and production and process can be easily controlled, thereby being popular among operators.
Description
Technical field
The utility model relates to the coaxial cable technology, specifically a kind of moistureproof coaxial cable.
Background technology
In recent years, the process that urban beautification is built is accelerated, and originally the outdoor built on stilts physically-foamed coaxial cable of cable TV all progressively changes buried-pipe laying into.In addition, many in recent years regional industry development are swift and violent, cause atmosphere, water source, land pollution, and some local weather anomalies fall heavy rain, and this has higher requirement to the humidity resistance that is embedded in underground physically-foamed coaxial cable.As not taking effective moisture preventive measure, its transmission performance can progressively descend, and particularly at U H F-band, the TV signal decay is bigger, has a strong impact on view reception effect.And producer only considers to increase waterproof or moisture-barrier sheath usually, promptly fills between outer conductor and sheath with waterproofing unction and sheath and uses the fabulous polythene material of water proofing property instead.Use these moisture preventive measures to have the following disadvantages:
1) waterproofing unction itself just contains certain moisture, handles badly to run counter to desire on the contrary.
2) use adds the ointment method, and it is bigger to control difficulty aborning, and operating personnel relatively dislike.
3) use polyethylene limited as the sheath waterproof ability separately, in general, poly waterproof penetrating power improves 6 times than polyvinyl chloride.But for the occasion of some low-lying ponding, after a period of time, moisture is still than being easier to penetrate into cable inside.
The utility model content
The utility model for overcoming deficiency of the prior art, provides a kind of moistureproof coaxial cable at the properties of product defective of conventional coaxial cable, and is unaffected with the transmission performance that guarantees buried cable.
Its main design thought is as follows:
(1) the radially moistureproof design of cable;
(2) the vertically moistureproof design of cable;
(3) the whole cable transmission performance guarantees.
At the characteristics and the running environment requirement thereof of moistureproof coaxial cable, take all factors into consideration that cable transmission performance guarantees, factors such as the realization difficulty of technology and manufacturing cost, the utility model is achieved through the following technical solutions.
A kind of moistureproof coaxial cable cable, its structure is followed successively by inner wire, insulating barrier, outer conductor, sheath from inside to outside, is separated the outer conductor outer coated sheath between inner wire and the outer conductor by insulating barrier;
Sheath is a double-decker, and skin is a polyvinyl chloride layer, and internal layer is plastic-aluminum combined belt, and the vertical annular of polyvinyl chloride layer is coated on plastic-aluminum combined belt outer surface.
As a kind of improvement, described plastic-aluminum combined belt comprises aluminium foil layer and plastic film layers, and aluminium foil layer vertically annular coats the outer conductor outer surface.
As further improvement, described outer conductor comprises foil shielding layer, and foil shielding layer is wrapped in the insulating barrier outer surface outward.
As further improvement, described outer conductor comprises aluminum-magnesium alloy wire and the composite braided screen of expansion water blocking yarn, and aluminum-magnesium alloy wire and the composite braided screen of expansion water blocking yarn are wrapped in the foil shielding layer outer surface outward.
As further improvement, described foil shielding layer is the double-sided self-adhesive foil laminated film, vertical annular coated insulation layer outer surface.
As further improvement, described insulating barrier is the insulating barrier that polythene material is made.
As further improvement, the inner wire that described inner wire is made for preferably copper Baogang.
As further improvement, described inner wire is the inner wire that solid copper Baogang monofilament is made.
Relative prior art, moistureproof coaxial cable of the present utility model mainly has the following advantages:
(1) You Yi radially humidity resistance
In general, poly waterproof penetrating power improves 6 times than polyvinyl chloride.And the aluminium-plastic tape waterproof ability has improved than polyvinyl chloride and has reached 1000 times.Therefore, adopt heat molten type aluminum plastic composite belt longitudinal bag and polyethylene composite sheath layer, greatly improved the radially humidity resistance of cable.Simultaneously, adopt aluminium-plastic tape, can also improve the shielding properties of cable.
(2) You Yi vertical humidity resistance
Adopt aluminum-magnesium alloy wire and expansion water blocking yarn composite braided, promptly adding 2-3 root nominal diameter in per share aluminum-magnesium alloy wire is the expansion water blocking yarn of 0.05mm.In case moisture is invaded, water blocking yarn absorbs moisture and expands, and stops the further intrusion of moisture, plays excellent vertical resistance effect.Simultaneously, water blocking yarn and aluminum-magnesium alloy wire are compound, neither influence the normal characteristic of cable, do not increase the outside diameter of cable again, and production and processing is control easily also, welcome by operating personnel.
In sum, moistureproof coaxial cable of the present utility model along with the process that urban beautification is built is accelerated, guarantees the transmission characteristic of coaxial cable simultaneously, and the humidity resistance of buried coaxial cable is had higher requirement.Remedy the deficiency of traditional similar cable, enlarged the selectivity of cable, improved the superiority and the applicability of cable.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is the technological process of production figure of the utility model specific embodiment.
Among the figure: the 1-inner wire; The 2-insulating barrier; The 3-foil shielding layer; 4-aluminum-magnesium alloy wire and the composite braided screen of expansion water blocking yarn; The plastic-aluminum combined belt of 5-; The 6-polyethylene layer.
Embodiment
In conjunction with the accompanying drawings, the utility model is further described.
A kind of moistureproof coaxial cable cable, its structure is followed successively by inner wire 1, insulating barrier 2, outer conductor, sheath from inside to outside, separates the outer conductor outer coated sheath by insulating barrier 2 between inner wire 1 and the outer conductor;
Sheath is a double-decker, and skin is a polyethylene layer 6, and internal layer is plastic-aluminum combined belt 5, and polyethylene layer 6 vertical annulars are coated on plastic-aluminum combined belt 5 outer surfaces.
Plastic-aluminum combined belt 5 comprises aluminium foil layer and plastic film layers, and aluminium foil layer vertically annular coats the outer conductor outer surface; Outer conductor comprises the composite braided screen 4 of foil shielding layer 3 and aluminum-magnesium alloy wire and expansion water blocking yarn, and foil shielding layer 3 is the double-sided self-adhesive foil laminated film, vertical annular coated insulation layer 2 outer surface; Composite braided screen 4 outer foil shielding layer 3 outer surfaces that are wrapped in of aluminum-magnesium alloy wire and expansion water blocking yarn.
Sketch the composition structure and the technological requirement of moistureproof coaxial cable below according to Fig. 1 and Fig. 2:
(1) inner wire 1
(2) insulating barrier 2
Insulating barrier 2 is the physical blowing polyethylene, adopts high and low density polyethylene material to form according to part by weight foaming in 7: 3; Insulating barrier 2 should closely be extruded in inner wire 1 surface.
(3) foil shielding layer 3
Be close to the vertical bag of foamed insulation by the double-sided self-adhesive foil laminated film and form overlapping rate 〉=18%.
(4) the composite braided screen 4 of aluminum-magnesium alloy wire and expansion water blocking yarn
The foil laminated film outer surface is the composite braided screen 4 of aluminum-magnesium alloy wire and expansion water blocking yarn, and count is greater than 60%, braided wires nominal diameter 0.12-0.18mm.Be specially in the per share aluminum-magnesium alloy wire that to add 2-3 root nominal diameter be that the expansion water blocking yarn of 0.05mm carries out compound working out.
(5) sheath
Before polyethylene layer 6 was extruded, online employing heat molten type aluminum plastic composite belt longitudinal bag was formed the composite sheath layer jointly.
Plastic-aluminum combined belt 5 adopts aluminium foil and hot-melt plastic film to be composited.During vertical the bag, aluminium foil layer is inside, and the hot-melt plastic film is outside.Online when extruding polyethylene layer 6, the plastic-aluminum combined belt 5 of heat molten type is met high temperature and is closely binded with polyethylene layer 6 immediately.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model, obviously, the utility model is not limited to above examples of implementation, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection range of the present utility model.
Claims (8)
1, a kind of moistureproof coaxial cable, its structure is followed successively by inner wire, insulating barrier, outer conductor, sheath from inside to outside, is separated the outer conductor outer coated sheath between inner wire and the outer conductor by insulating barrier;
It is characterized in that sheath is a double-decker, skin is a polyethylene layer, and internal layer is plastic-aluminum combined belt, and the vertical annular of polyethylene layer is coated on plastic-aluminum combined belt outer surface.
2, moistureproof coaxial cable according to claim 1 is characterized in that, described plastic-aluminum combined belt comprises aluminium foil layer and plastic film layers, and aluminium foil layer vertically annular coats the outer conductor outer surface.
3, moistureproof coaxial cable according to claim 1 is characterized in that, described outer conductor comprises foil shielding layer, and foil shielding layer is wrapped in the insulating barrier outer surface outward.
4, according to claim 1 or 3 described moistureproof coaxial cables, it is characterized in that, described outer conductor comprises aluminum-magnesium alloy wire and the composite braided screen of expansion water blocking yarn, and aluminum-magnesium alloy wire and the composite braided screen of expansion water blocking yarn are wrapped in the foil shielding layer outer surface outward.
5, moistureproof coaxial cable according to claim 3 is characterized in that, described foil shielding layer is the double-sided self-adhesive foil laminated film, vertical annular coated insulation layer outer surface.
6, moistureproof coaxial cable according to claim 1 is characterized in that, described insulating barrier is the insulating barrier that polythene material is made.
7, moistureproof coaxial cable according to claim 1 is characterized in that, the inner wire that described inner wire is made for preferably copper Baogang.
8, moistureproof coaxial cable according to claim 1 and 2 is characterized in that, described inner wire is the inner wire that solid copper Baogang monofilament is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201662343U CN201327734Y (en) | 2008-10-27 | 2008-10-27 | Damp proof co-axial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201662343U CN201327734Y (en) | 2008-10-27 | 2008-10-27 | Damp proof co-axial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327734Y true CN201327734Y (en) | 2009-10-14 |
Family
ID=41179700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201662343U Expired - Fee Related CN201327734Y (en) | 2008-10-27 | 2008-10-27 | Damp proof co-axial cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN201327734Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044312A (en) * | 2009-10-16 | 2011-05-04 | 青岛汉缆股份有限公司 | High-strength waterproof and corrosion-resistant cable sheath |
| CN102394144A (en) * | 2011-10-27 | 2012-03-28 | 天津市有容安波电缆技术有限公司 | Coaxial bunched cable for 3G (third generation) communication |
| CN104681194A (en) * | 2015-01-30 | 2015-06-03 | 安徽省高沟电缆有限公司 | Industrial waterproof moistureproof corrosion-resistant power cable |
| CN104681158A (en) * | 2015-03-10 | 2015-06-03 | 江苏中辰电缆有限公司 | Slurry-resistant oil-resistant power cable for oil platform |
| CN105741981A (en) * | 2016-04-06 | 2016-07-06 | 河南省卓越电缆有限公司 | Production process of cable special for enhanced gas shielded push wire welding pistol |
| CN105825959A (en) * | 2016-04-06 | 2016-08-03 | 河南省卓越电缆有限公司 | Production process of gas pipe heatproof high-pressure signal ignition cable |
| CN109243714A (en) * | 2018-09-21 | 2019-01-18 | 安徽华电线缆股份有限公司 | A kind of Dampproof coaxial cable and its manufacturing process |
-
2008
- 2008-10-27 CN CNU2008201662343U patent/CN201327734Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044312A (en) * | 2009-10-16 | 2011-05-04 | 青岛汉缆股份有限公司 | High-strength waterproof and corrosion-resistant cable sheath |
| CN102394144A (en) * | 2011-10-27 | 2012-03-28 | 天津市有容安波电缆技术有限公司 | Coaxial bunched cable for 3G (third generation) communication |
| CN104681194A (en) * | 2015-01-30 | 2015-06-03 | 安徽省高沟电缆有限公司 | Industrial waterproof moistureproof corrosion-resistant power cable |
| CN104681158A (en) * | 2015-03-10 | 2015-06-03 | 江苏中辰电缆有限公司 | Slurry-resistant oil-resistant power cable for oil platform |
| CN105741981A (en) * | 2016-04-06 | 2016-07-06 | 河南省卓越电缆有限公司 | Production process of cable special for enhanced gas shielded push wire welding pistol |
| CN105825959A (en) * | 2016-04-06 | 2016-08-03 | 河南省卓越电缆有限公司 | Production process of gas pipe heatproof high-pressure signal ignition cable |
| CN109243714A (en) * | 2018-09-21 | 2019-01-18 | 安徽华电线缆股份有限公司 | A kind of Dampproof coaxial cable and its manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20131027 |