CN101752034A - Coaxial cable and multi-core coaxial cable - Google Patents
Coaxial cable and multi-core coaxial cable Download PDFInfo
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- CN101752034A CN101752034A CN201010109038A CN201010109038A CN101752034A CN 101752034 A CN101752034 A CN 101752034A CN 201010109038 A CN201010109038 A CN 201010109038A CN 201010109038 A CN201010109038 A CN 201010109038A CN 101752034 A CN101752034 A CN 101752034A
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Abstract
The embodiment of the invention discloses a coaxial cable and a multi-core coaxial cable; the multi-core coaxial cable is combined by a plurality of coaxial cables; and the multi-core coaxial cable is externally coated with a coating body, wherein the coaxial cable comprises an inner conductor, an insulating layer, a shielding layer and a jacket which are coated in sequence from inside to outside; the shielding layer is made of metal wires; and the shielding layer is coated at the outer part of the insulating layer in a winding manner. The embodiment of the invention effectively solves the problems that the existing coaxial cable has larger total outer diameter and higher cost.
Description
Technical field
The present invention relates to electronics or communication technical field, specifically relate to a kind of coaxial cable and multicore coaxial cable.
Background technology
In the communications field, often use coaxial cable and come transmission of electric signals, as the radio frequency coaxial-cable that wireless base station device is used, the office that the exchange of central machine room and transmission equipment are used is with coaxial cable etc.Innings use coaxial cable for what exchange and transmission equipment were used, according to the difference of signal transmission rate, transmission range etc., can adopt respectively different thicknesses, characteristic impedance is 75 ohm coaxial cable.For the repeating signal of 2.048Mbps, different equipment manufacturers, also used different thicknesses, characteristic impedance is that 75 ohm coaxial cable transmits.
Existing coaxial cable comprises inner wire, insulating barrier, screen and the sheath that connects successively from inside to outside.Wherein, the diameter of inner wire is 0.26 millimeter ± 0.005 millimeter, and material is solid bare copper wire; The insulating barrier diameter is 1.20 millimeters ± 0.05 millimeter, and material is bubble-Pi polyethylene (internal layer is solid polyethylene, and outer is polyethylene foamed) or skin-bubble-Pi polyethylene (internal layer is solid polyethylene, and the intermediate layer is a polyethylene foamed, and skin is solid polyethylene); Screen is a woven shield, and count is more than or equal to 95%, and braided material is that diameter is 0.08 millimeter～0.10 millimeter a bare copper wire; Sheath diameter is 2.20 millimeters ± 0.10 millimeter, and material is a polyvinyl chloride.
In the existing coaxial cable, because screen is a woven shield, makes that the external diameter of woven shield is bigger than normal, and then makes that total external diameter of above-mentioned coaxial cable is bigger than normal, therefore can take too much cabling space in actual use, reduce the line density that of communication equipment; And, because total external diameter of above-mentioned coaxial cable is bigger than normal, making that the copper material that consumes is more, cost is higher.
Many coaxial cable multicore coaxial cables capable of being combined, and, make that total external diameter of multicore coaxial cable is also bigger than normal because total external diameter of coaxial cable is bigger than normal.
Summary of the invention
The embodiment of the invention provides a kind of coaxial cable, to reduce the total external diameter of coaxial cable and to reduce cost.
The embodiment of the invention also provides a kind of multicore coaxial cable, and it is combined by many coaxial cables.
The embodiment of the invention provides a kind of coaxial cable, and it comprises the inner wire that coats successively from inside to outside, insulating barrier, and screen and sheath, wherein, the material of described screen is a wire, described screen is coated on outside the described insulating barrier with canoe.
The embodiment of the invention also provides a kind of multicore coaxial cable, and it is combined by many above-mentioned coaxial cables, and described multicore coaxial cable is coated with cladding.
In the coaxial cable of the embodiment of the invention, its screen is owing to be winding arrangement, compared with prior art, can effectively reduce total external diameter of coaxial cable, can significantly reduce material cost again, it is bigger than normal because of external diameter to have solved prior art, and cost is higher and can't satisfy the highly dense outlet problem of coaxial cable.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic cross-section of a kind of coaxial cable solid of the embodiment of the invention;
Fig. 2 is the schematic cross-section of the coaxial cable of first kind of specific embodiment of the present invention;
Fig. 3 is the schematic cross-section of the coaxial cable of second kind of specific embodiment of the present invention;
Fig. 4 is the cross sectional representation of the multicore coaxial cable of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 1 is the schematic cross-section of the coaxial cable solid of the embodiment of the invention.As shown in Figure 1, coaxial cable comprises the inner wire 1 that coats successively from inside to outside, insulating barrier 2, screen 3 and sheath 4, wherein, the material of described screen 3 is a wire, described screen 3 is coated on outside the described insulating barrier 2 with canoe, that is, described screen 3 is for twining screen.
The structure of woven shield of the prior art is as the bidirectional crossed structure of compiling the rope made of hemp, the equipment that uses is braiding machine, therefore, the external diameter that the external diameter of woven shield equals before the screen braiding adds four times braiding line diameter, makes that the external diameter of woven shield is bigger than normal.
According to an embodiment of the present, the winding density of described screen 3 is more than or equal to 95%, and the diameter of the material of described screen 3 is 0.05 millimeter～0.10 millimeter.The material of described screen 3 further can be bare copper wire, or copper covered steel wire, or tinned wird, or silver-coated copper wire, or silver-copper plated steel clad wire, or CCAM, or the tin-coated copper plated aluminium magnesium alloy wire.The external diameter that the embodiment of the invention like this still has screen 3 is less, thereby makes total external diameter of coaxial cable less, weight saving, the advantage that cost descends.
According to an embodiment of the present, can be added with aluminium-plastic tape or earth connection between described screen 3 and the described insulating barrier 2, so can reduce the winding density of screen 3, that is to say, make composite band or earth connection if be added with plastic-aluminum between screen 3 and insulating barrier 2, as long as the winding density of screen 3 is more than or equal to 40%.
According to an embodiment of the present, the diameter of described inner wire 1 can be 0.16 millimeter～0.26 millimeter; The material of described inner wire 1 can be solid bare copper wire, or copper covered steel wire, or tinned wird, or silver-coated copper wire, or silver-copper plated steel clad wire.
The diameter of described insulating barrier 2 can be 0.60 millimeter～1.10 millimeters; The material of described insulating barrier 2 can be bubble-Pi polyethylene, and (internal layer is solid polyethylene, skin is a polyethylene foamed), or bubble-Pi perfluoroethylene-propylene (internal layer is solid perfluoroethylene-propylene, outer is the foaming perfluoroethylene-propylene), or skin-bubble-Pi polyethylene (internal layer is solid polyethylene, the intermediate layer is a polyethylene foamed, skin is solid polyethylene), or skin-bubble-Pi perfluoroethylene-propylene (internal layer is solid perfluoroethylene-propylene, the intermediate layer is the foaming perfluoroethylene-propylene, and skin is solid perfluoroethylene-propylene).
The diameter of described sheath 4 can be 1.00 millimeters～1.60 millimeters; The material of described sheath 4 can be polyvinyl chloride, or perfluoroethylene-propylene, or low-smoke halogen-free polyolefin.
In the embodiment of the invention, because screen 3 is for twining screen, for the characteristic impedance that keeps coaxial cable constant, the external diameter of its inner wire 1 can reduce, and the external diameter of inner wire 1 reduces, and makes the diameter of insulating barrier 2 and the external diameter of sheath 4 also can correspondingly reduce, and then makes total external diameter of coaxial cable further reduce, weight further alleviates, and cost further descends.
Fig. 2 is the schematic cross-section of the coaxial cable of first kind of specific embodiment of the present invention.As shown in Figure 2, coaxial cable comprises the inner wire 1 ' that coats connection from inside to outside successively, insulating barrier 2 ', screen 3 ' and sheath 4 ', wherein, the material of described screen 3 ' is a wire, and described screen 3 ' is coated on outside the described insulating barrier 2 ' with canoe, that is, described screen 3 ' is for twining screen.
Inner wire 1 ' diameter is 0.26 millimeter ± 0.008 millimeter, and material is solid bare copper wire; Insulating barrier 2 ' diameter is 1.10 millimeters ± 0.05 millimeter, and material is bubble-Pi polyethylene (internal layer is solid polyethylene, and skin is a polyethylene foamed); The winding density of screen 3 ' is more than or equal to 95%, and the material of screen 3 ' is the bare copper wire of 0.08 millimeter of diameter; Sheath 4 ' diameter is 1.60 millimeters ± 0.05 millimeter, and material is a polyvinyl chloride.
The embodiment of the invention compared with prior art has following advantage:
1, total external diameter of the coaxial cable of identical core number reduces about 25%, effectively reduces the cabling occupation space, improves the line density that of communication equipment.
2, weight reduces more than 50%, effectively saves cost of transportation.
3, cost can reduce more than 25%.
4, effectively save the copper resource, met the energy-saving and emission-reduction main trend.
Fig. 3 is the schematic cross-section of the coaxial cable of second kind of specific embodiment of the present invention.As shown in Figure 3, coaxial cable comprises the inner wire 1 that coats connection from inside to outside successively "; insulating barrier 2 ", screen 3 " and sheath 4 ", wherein, described screen 3 " material be wire, described screen 3 " be coated on described insulating barrier 2 with canoe " outside; promptly, described screen 3 " for twining screen.
The embodiment of the invention compared with prior art has following advantage:
1, the total external diameter of the coaxial cable of identical core number reduces about 40%, effectively reduces the cabling occupation space, improves the line density that of communication equipment.
2, weight reduces more than 70%, effectively saves cost of transportation.
3, cost can reduce more than 30%.
4, effectively save the copper resource, met the energy-saving and emission-reduction main trend.
Fig. 4 is the cross sectional representation of the multicore coaxial cable of the embodiment of the invention.As shown in Figure 4, the embodiment of the invention has proposed a kind of multicore coaxial cable, and multicore coaxial cable is combined by many coaxial cables, and described multicore coaxial cable is coated with cladding 5.
, no longer repeat referring to the description in the execution mode 1～3 about the concrete structure of this coaxial cable and beneficial effect herein.
Wherein, described cladding 5 can be plastic film.
Described cladding 5 also can be outer shielding layer and oversheath, and described oversheath is coated on outside the described outer shielding layer.
Above-mentioned explanation of the present invention is to be that 75 ohm ± 3 ohm coaxial cable is that example describes with characteristic impedance, but not as limit, those skilled in the art are to be understood that, by making screen adopt winding arrangement, also can make the coaxial cable of other value characteristic impedance have total external diameter reduces, weight saving, the advantage that cost descends.
The above only is several embodiments of the present invention, and those skilled in the art can carry out various changes or modification to the embodiment of the invention and do not break away from the spirit and scope of the present invention according to application documents are disclosed.
Claims (10)
1. a coaxial cable is characterized in that, described coaxial cable comprises the inner wire that coats successively from inside to outside, insulating barrier, and screen and sheath, wherein, the material of described screen is a wire, described screen is coated on outside the described insulating barrier with canoe.
2. coaxial cable according to claim 1 is characterized in that, the winding density of described screen is more than or equal to 95%.
3. coaxial cable according to claim 2 is characterized in that, the material of described screen is a bare copper wire, or copper covered steel wire, or tinned wird, or silver-coated copper wire, or silver-copper plated steel clad wire, or CCAM, or the tin-coated copper plated aluminium magnesium alloy wire.
4. coaxial cable according to claim 1 is characterized in that, is added with aluminium-plastic tape or earth connection between described screen and the described insulating barrier, and the winding density of described screen is more than or equal to 40%.
5. coaxial cable according to claim 1 is characterized in that, the material of described inner wire is solid bare copper wire, or copper covered steel wire, or tinned wird, or silver-coated copper wire, or silver-copper plated steel clad wire.
6. coaxial cable according to claim 1 is characterized in that, the diameter of described insulating barrier is 0.60 millimeter～1.10 millimeters; The material of described insulating barrier is a bubble-Pi polyethylene, or bubble-Pi perfluoroethylene-propylene, or skin-bubble-Pi polyethylene, or skin-bubble-Pi perfluoroethylene-propylene.
7. coaxial cable according to claim 1 is characterized in that, the diameter of described sheath is 1.00 millimeters～1.60 millimeters; The material of described sheath is a polyvinyl chloride, or a poly-fluoro ethyl propene, or low-smoke halogen-free polyolefin.
8. a multicore coaxial cable is characterized in that, described multicore coaxial cable combines as any described coaxial cable of claim 1-7 by many, and described multicore coaxial cable is coated with cladding.
9. multicore coaxial cable according to claim 8 is characterized in that, described cladding is a plastic film.
10. multicore coaxial cable according to claim 8 is characterized in that described cladding comprises outer shielding layer and oversheath, and described oversheath is coated on outside the described outer shielding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010109038A CN101752034A (en) | 2010-02-04 | 2010-02-04 | Coaxial cable and multi-core coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010109038A CN101752034A (en) | 2010-02-04 | 2010-02-04 | Coaxial cable and multi-core coaxial cable |
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| Publication Number | Publication Date |
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| CN101752034A true CN101752034A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201010109038A Pending CN101752034A (en) | 2010-02-04 | 2010-02-04 | Coaxial cable and multi-core coaxial cable |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290132A (en) * | 2011-06-28 | 2011-12-21 | 南京全信传输科技股份有限公司 | Flexible wire/cable with 600V rated voltage and preparation process thereof |
| CN102361149A (en) * | 2011-10-17 | 2012-02-22 | 江苏俊知技术有限公司 | Leakage coaxial cable with novel structure |
| CN103680752A (en) * | 2013-12-09 | 2014-03-26 | 泰州日顺电器发展有限公司 | Coaxial cable and manufacturing technology thereof |
| CN104981880A (en) * | 2013-03-06 | 2015-10-14 | Ask工业股份公司 | Coaxial cable |
| CN106409424A (en) * | 2016-12-15 | 2017-02-15 | 耒阳市诚松新材料有限公司 | Carbon-fiber metal composite shielded wire |
| CN106782802A (en) * | 2016-12-15 | 2017-05-31 | 耒阳市诚松新材料有限公司 | A kind of metal carbon fiber composite shielding cable |
-
2010
- 2010-02-04 CN CN201010109038A patent/CN101752034A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290132A (en) * | 2011-06-28 | 2011-12-21 | 南京全信传输科技股份有限公司 | Flexible wire/cable with 600V rated voltage and preparation process thereof |
| CN102361149A (en) * | 2011-10-17 | 2012-02-22 | 江苏俊知技术有限公司 | Leakage coaxial cable with novel structure |
| CN104981880A (en) * | 2013-03-06 | 2015-10-14 | Ask工业股份公司 | Coaxial cable |
| CN103680752A (en) * | 2013-12-09 | 2014-03-26 | 泰州日顺电器发展有限公司 | Coaxial cable and manufacturing technology thereof |
| CN103680752B (en) * | 2013-12-09 | 2016-06-08 | 泰州日顺电器发展有限公司 | A kind of coaxial cable and manufacturing process thereof |
| CN106409424A (en) * | 2016-12-15 | 2017-02-15 | 耒阳市诚松新材料有限公司 | Carbon-fiber metal composite shielded wire |
| CN106782802A (en) * | 2016-12-15 | 2017-05-31 | 耒阳市诚松新材料有限公司 | A kind of metal carbon fiber composite shielding cable |
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Open date: 20100623 |