CN201904104U - Cable of CCTV camera for ships and maritime works - Google Patents
Cable of CCTV camera for ships and maritime works Download PDFInfo
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- CN201904104U CN201904104U CN 201020681124 CN201020681124U CN201904104U CN 201904104 U CN201904104 U CN 201904104U CN 201020681124 CN201020681124 CN 201020681124 CN 201020681124 U CN201020681124 U CN 201020681124U CN 201904104 U CN201904104 U CN 201904104U
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Abstract
The utility model discloses a cable of a CCTV (Closed-Circuit Television) camera for ships and maritime works in the cable field. The cable core of the cable comprises a coaxial cable, a pair-twisting core wire and a power cable; the circumference of the cable core is wrapped by a polyester belt wrapping layer; a tin plated copper shielding layer is wrapped outside the polyester belt wrapping layer; an outer sheath is sheathed outside the tin plated copper shielding layer in an extruded manner; a coaxial cable insulation layer, a coaxial cable shielding layer, and a coaxial cable sheath are wrapped outside the center conductor of the coaxial cable sequentially; the center of the pair-twisting core wire comprises a twisted pair and a non-insulating copper conductor leakage wire, wherein the twisted pair comprises two strands of insulating core wires twisted together, and each strand of the insulating core wire comprises a twisted pair conductor in the center and a twisted pair insulation layer wrapped outside the twisted pair conductor; an aluminium foil polyester composite belt is wrapped outside both the twisted pair and the leakage wire; the leakage wire and the aluminum layer of the aluminium foil polyester composite belt are in electric contact; and the power cable comprises a power cable core wire conductor and a power cable insulation layer wrapped outside the power cable core wire conductor.
Description
Technical field
The utility model relates to a kind of multi-functional cable, and particularly a kind of ships maritime works closed-circuit TV camera cable belongs to the cable technology field.
Background technology
On May 27th, 2009, publication number is the Chinese utility application of CN 201247605, a kind of combined communication cable is disclosed, comprise coaxial cable, coaxial cable includes inner wire, oversheath, and with coaxial cable and show cable for digital communication, cable for digital communication and coaxial cable are " 8 " word arrangement, cable for digital communication includes oversheath, and the oversheath of this oversheath and coaxial cable fuses.The monitoring closed-circuit TV camera that arrives commonly used when this telecommunication cable is used for closed-circuit TV camera, also needs supporting separately twisted-pair feeder and power cable on the ships, makes the supporting circuit of closed-circuit TV camera more, is not easy to on-the-spot the use, and is in disorder easily.
The utility model content
The purpose of this utility model is, overcomes problems of the prior art, and a kind of ships maritime works closed-circuit TV camera cable is provided, and a cable can satisfy power supply, the signal instructions for use of video camera.
For solving above technical problem, a kind of ships maritime works closed-circuit TV camera cable provided by the utility model, cable core comprises coaxial cable, pair twist heart yearn and power cable, the periphery of described cable core is surrounded with the polyester belt lapping layer, described polyester belt lapping layer is coated with the tinned copper wire screen, and described tinned copper wire screen is extruded with oversheath outward; Described coaxial cable comprises coax cable center conductor, outwards is coated with coaxial cable insulated layer, coaxial cable shielding layer and coaxial cable sheath successively by described coax cable center conductor; The center of described pair twist heart yearn comprise one group of twisted pair wire to a nonisulated copper conductor leaky line, described twisted pair wire is to heart yearns stranded the forming mutually of being insulated by two sub-threads, described sub-thread insulation heart yearn comprises the twisted pair wire conductor that is positioned at the center and is coated on the outer twisted pair wire insulating barrier of described twisted pair wire conductor, described twisted pair wire is to being surrounded with aluminium foil polyester composite band outward with leaky line, and described leaky line is electric with the aluminium lamination of described aluminium foil polyester composite band and contacts; Described power cable comprises the power cable cored wire conductor and is coated on the outer power cable insulation layer of described power cable cored wire conductor.
With respect to prior art, the utility model has been obtained following beneficial effect: the existing power line of cable of the present utility model, coaxial cable, pair twist heart yearn are also arranged, and can satisfy of the user demand of ships maritime works closed-circuit TV camera simultaneously to power supply and holding wire; Coaxial cable self is provided with insulating barrier and screen, adds that cable core integral body also is provided with screen and forms double layer screen, and the signal shielding that coaxial cable is transmitted is good; The pair twist heart yearn is coated with aluminium foil, adds that cable core integral body also is provided with screen and also forms double layer screen, also is provided with the leaky line that contacts with aluminium lamination in the pair twist heart yearn along its length, can good earth, reduce signal noise.
As preferred version of the present utility model, described coaxial cable has two, described pair twist heart yearn has two groups and two groups of pair of twisted cores cabling lay ratio differences of adjacent setting, described power cable has two and adjacent setting, two described coaxial cables are positioned at the central authorities of described cable core, and described pair twist heart yearn and described power cable lay respectively at the both sides of described coaxial cable.Power cable is relative with signal cable to be separated, and can reduce interference; Coaxial cable is thicker simultaneously, is placed on the rounding that the middle part is beneficial to whole cable core; Two groups of pair of twisted cores cabling lay ratio differences can be avoided the mutual interference of two groups of signal phases.
As preferred version of the present utility model, described coax cable center conductor is stranded the forming of naked copper tow that seven diameters are 0.2mm, and stranded lay ratio is 12～15; Described coaxial cable insulated layer is a polyethylene foamed, and thickness is 0.9～0.95mm, and external diameter is 2.4mm～2.5mm; It is the bare copper wire braiding of 0.12～0.13mm that described coaxial cable shielding layer adopts diameter, and count is 90%, and the order number is 94～98 orders; Described coaxial cable sheath adopts Halogen elastomer or thermosets, and jacket thickness is 0.4～0.45mm; The entire outer diameter of described coaxial cable is 3.8～4.0mm.The characteristic impedance of this structure coaxial cable (5MHz) is about 75 Ω, and maximum attenuation (5MHz) is below 3.3dB/100m, and normal capacitance (1kHz) can satisfy the instructions for use of video camera about 55pF/m.
As preferred version of the present utility model, stranded the forming of tin-coated copper tow that it is 0.2mm that described twisted pair wire conductor adopts seven diameters respectively, stranded lay ratio is 8～12, and two described sub-thread insulating core cabling pitch differences; Described twisted pair wire insulating barrier is the Halogen cross-linked material, and insulation thickness is 0.3mm, and the insulation external diameter is 1mm; Stranded the forming of tin-coated copper tow that described leaky line is 0.2mm by seven diameters; Described aluminium foil polyester composite band is surrounded with two-layer, and every layer the rate of putting up is 30%～35%.The twisted pair wire of this structure, its mutual capacitance≤6.6Nf/100m; Characteristic impedance is about 100 ± 15 Ω; Attenuation constant (1MHz)≤2.0db/100mm.
As preferred version of the present utility model, the power cable cored wire conductor of described power cable is stranded the forming of tin-coated copper tow that 50 diameters are 0.25mm, and stranded lay ratio is 8～10; The insulating material of described power cable insulation layer is the crosslinked halogen-free material, and insulation thickness is 0.6～0.7mm, and the insulation external diameter is 3.3～3.4mm.The electric conductivity of the power cable of this structure and insulation property are all good.
As preferred version of the present utility model, described polyester belt lapping layer is double-deck wrapped, and polyester belt thickness is 0.04mm, the wrapped rate 25%～35% of putting up; Described tinned copper wire screen is twice structures on two, and percentage of braiding coverage 90%～95%, the diameter of described tinned copper wire are 0.15mm; Described oversheath is the elastomer crosslinked material of Halogen, and extruding thickness is 1.5～1.7mm; The finished cable external diameter is 14.5～17.5mm.The advantages of good shielding performance of this cable, materials economy, overall dimension is little.
Description of drawings
Fig. 1 is the structural representation of the utility model ships maritime works closed-circuit TV camera with cable.
Among the figure: 1 coaxial cable, 1a coax cable center conductor, 1b coaxial cable insulated layer, 1c coaxial cable shielding layer, 1d coaxial cable sheath, 2 pair twist heart yearns, 2a twisted pair wire conductor, 2b twisted pair wire insulating barrier, 2c leaky line, 2d aluminium foil polyester composite band, 3 power cables, 3a power cable cored wire conductor, 3b power cable insulation layer, 4 polyester belt lapping layers, 5 tinned copper wire screens, 6 oversheaths.
Embodiment
Embodiment one
(1) makes coaxial cable 1, pair twist heart yearn 2 and power cable 3 respectively;
The naked copper tow that to get seven diameters be 0.2mm is twisted into coax cable center conductor 1a, and stranded lay ratio is 12; Extrude the polyethylene foamed insulating barrier then outside coax cable center conductor 1a, thickness is 0.9mm, and the external diameter that extrudes back coaxial cable insulated layer 1b is 2.4mm; Be the bare copper wire braiding of 0.12mm at coaxial cable insulated layer 1b external application diameter then, count is 90%, and the order number is 94 orders; Extrude coaxial cable sheath 1d again outside coaxial cable shielding layer 1c, adopt Halogen elastomer or thermosets, coaxial cable sheath 1d thickness is 0.4mm, and the entire outer diameter of the coaxial cable after the moulding is 3.8mm;
The tin-coated copper tow that to get seven diameters respectively be 0.2mm is twisted into twisted pair wire conductor 2a separately, and stranded lay ratio is respectively 8 and 10; Then extrude twisted pair wire insulating barrier 2b outside twisted pair wire conductor 2a, twisted pair wire insulating barrier 2b is the Halogen cross-linked material, and insulation thickness is 0.3mm, and the insulation external diameter is 1mm; The tin-coated copper tow that to get seven diameters be 0.2mm is twisted into leaky line 2c; Getting two sub-threads insulation heart yearns then, to be twisted into twisted pair wire right, two sub-thread insulating core cabling pitch differences; Again twisted pair wire to leaky line 2c outside wrapped two-layer aluminium foil polyester composite band 2d constitute pair twist heart yearn 2, every layer the rate of putting up is 30%;
The tin-coated copper tow that to get 50 diameters be 0.25mm is twisted into power cable cored wire conductor 3a, and stranded lay ratio is 8: 1; Extrude power cable insulation layer 3b then outside power cable cored wire conductor 3a, the insulating material of power cable insulation layer 3b is the crosslinked halogen-free material, and insulation thickness is 0.6mm, and the external diameter of power cable 3 is 3.3mm behind the stranding;
(2) get 3 two of 2 liang of groups of 1 two of coaxial cables, pair twist heart yearn and power cables, the 2 adjacent arrangements of pair twist heart yearn, power cable 3 adjacent arrangements, two coaxial cables 1 are positioned at the central authorities of cable core, and pair twist heart yearn 2 and power cable 3 lay respectively at the both sides of coaxial cable 1;
(3) at the wrapped polyester belt lapping layer 4 of the periphery of cable core, polyester belt lapping layer 4 is double-deck wrapped, and polyester belt thickness is 0.04mm, the wrapped rate 25% of putting up;
(4) adopt diameter to be the braiding of 0.15mm tinned copper wire outside polyester belt lapping layer 4, tinned copper wire screen 5 is twice structures on two, percentage of braiding coverage 90%;
(5) extrude oversheath 6 outside tinned copper wire screen 5, oversheath 6 is the elastomer crosslinked material of Halogen, possesses the oil resistant mud performance of NEK 606 standard codes and low temperature resistant-35 ℃ of performances of CSA standard, and extruding thickness is 1.5mm; The finished cable external diameter is 14.5mm.
Embodiment two
(1) makes coaxial cable 1, pair twist heart yearn 2 and power cable 3 respectively;
The naked copper tow that to get seven diameters be 0.2mm is twisted into coax cable center conductor 1a, and stranded lay ratio is 15; Extrude the polyethylene foamed insulating barrier then outside coax cable center conductor 1a, thickness is 0.95mm, and the external diameter that extrudes back coaxial cable insulated layer 1b is 2.5mm; Be the bare copper wire braiding of 0.13mm at coaxial cable insulated layer 1b external application diameter then, count is 90%, and the order number is 98 orders; Extrude coaxial cable sheath 1d again outside coaxial cable shielding layer 1c, adopt Halogen elastomer or thermosets, coaxial cable sheath 1d thickness is 0.45mm, and the entire outer diameter of the coaxial cable 1 after the moulding is 4.0mm;
The tin-coated copper tow that to get seven diameters respectively be 0.2mm is twisted into twisted pair wire conductor 2a separately, and stranded lay ratio is respectively 9 and 12; Then extrude twisted pair wire insulating barrier 2b outside twisted pair wire conductor 2a, twisted pair wire insulating barrier 2b is the Halogen cross-linked material, and insulation thickness is 0.3mm, and the insulation external diameter is 1mm; The tin-coated copper tow that to get seven diameters be 0.2mm is twisted into leaky line 2c; Getting two sub-threads insulation heart yearns then, to be twisted into twisted pair wire right, two sub-thread insulating core cabling pitch differences; Again twisted pair wire to leaky line 2c outside wrapped two-layer aluminium foil polyester composite band 2d constitute pair twist heart yearn 2, every layer the rate of putting up is 35%;
The tin-coated copper tow that to get 50 diameters be 0.25mm is twisted into power cable cored wire conductor 3a, and stranded lay ratio is 10; Extrude power cable insulation layer 3b then outside power cable cored wire conductor 3a, the insulating material of power cable insulation layer 3b is the crosslinked halogen-free material, and insulation thickness is 0.7mm, and the external diameter of power cable 3 is 3.4mm behind the stranding;
(2) get 3 two of 2 liang of groups of two of coaxial cables, pair twist heart yearn and power cables, the 2 adjacent arrangements of pair twist heart yearn, power cable 3 adjacent arrangements, two coaxial cables are positioned at the central authorities of cable core, and pair twist heart yearn 2 and power cable 3 lay respectively at the both sides of coaxial cable;
(3) at the wrapped polyester belt lapping layer 4 of the periphery of cable core, polyester belt lapping layer 4 is double-deck wrapped, and polyester belt thickness is 0.04mm, the wrapped rate 35% of putting up;
(4) adopt diameter to be the braiding of 0.15mm tinned copper wire outside polyester belt lapping layer 4, tinned copper wire screen 5 is twice structures on two, percentage of braiding coverage 95%;
(5) extrude oversheath 6 outside tinned copper wire screen 5, oversheath 6 is the elastomer crosslinked material of Halogen, possesses the oil resistant mud performance of NEK 606 standard codes and low temperature resistant-35 ℃ of performances of CSA standard, and extruding thickness is 1.7mm; The finished cable external diameter is 17.5mm.
Embodiment three
(1) makes coaxial cable 1, pair twist heart yearn 2 and power cable 3 respectively;
The naked copper tow that to get seven diameters be 0.2mm is twisted into coax cable center conductor 1a, and stranded lay ratio is 13; Extrude the polyethylene foamed insulating barrier then outside coax cable center conductor 1a, thickness is 0.92mm, and the external diameter that extrudes back coaxial cable insulated layer 1b is 2.45mm; Be the bare copper wire braiding of 0.12mm at coaxial cable insulated layer 1b external application diameter then, count is 90%, and the order number is 96 orders; Extrude coaxial cable sheath 1d again outside coaxial cable shielding layer 1c, adopt Halogen elastomer or thermosets, coaxial cable sheath 1d thickness is 0.42mm, and the entire outer diameter of the coaxial cable 1 after the moulding is 3.9mm;
The tin-coated copper tow that to get seven diameters respectively be 0.2mm is twisted into twisted pair wire conductor 2a separately, and stranded lay ratio is respectively 8 and 11; Then extrude twisted pair wire insulating barrier 2b outside twisted pair wire conductor 2a, twisted pair wire insulating barrier 2b is the Halogen cross-linked material, and insulation thickness is 0.3mm, and the insulation external diameter is 1mm; The tin-coated copper tow that to get seven diameters be 0.2mm is twisted into leaky line 2c; Getting two sub-threads insulation heart yearns then, to be twisted into twisted pair wire right, two sub-thread insulating core cabling pitch differences; Again twisted pair wire to leaky line 2c outside wrapped two-layer aluminium foil polyester composite band 2d constitute pair twist heart yearn 2, every layer the rate of putting up is 32%;
The tin-coated copper tow that to get 50 diameters be 0.25mm is twisted into power cable cored wire conductor 3a, and stranded lay ratio is 9: 1; Extrude power cable insulation layer 3b then outside power cable cored wire conductor 3a, the insulating material of power cable insulation layer 3b is the crosslinked halogen-free material, and insulation thickness is 0.65mm, and the external diameter of power cable 3 is 3.35mm behind the stranding;
(2) get 3 two of 2 liang of groups of two of coaxial cables, pair twist heart yearn and power cables, the 2 adjacent arrangements of pair twist heart yearn, power cable 3 adjacent arrangements, two coaxial cables are positioned at the central authorities of cable core, and pair twist heart yearn 2 and power cable 3 lay respectively at the both sides of coaxial cable;
(3) at the wrapped polyester belt lapping layer 4 of the periphery of cable core, polyester belt lapping layer 4 is double-deck wrapped, and polyester belt thickness is 0.04mm, the wrapped rate 30% of putting up;
(4) adopt diameter to be the braiding of 0.15mm tinned copper wire outside polyester belt lapping layer 4, tinned copper wire screen 5 is twice structures on two, percentage of braiding coverage 92%;
(5) extrude oversheath 6 outside tinned copper wire screen 5, oversheath 6 is the elastomer crosslinked material of Halogen, possesses the oil resistant mud performance of NEK 606 standard codes and low temperature resistant-35 ℃ of performances of CSA standard, and extruding thickness is 1.6mm.
To coaxial cable performance test result such as the table 1 among the embodiment one to embodiment three:
Table 1
| Coaxial cable | Unit | Embodiment one | Embodiment two | Embodiment three |
| Characteristic impedance (5MHz) | Ω | 76 | 74 | 75 |
| Maximum attenuation (5MHz) | dB/100m | 3.26 | 3.14 | 3.21 |
| Normal capacitance (1kHz) | pF/m | 54 | 55 | 55 |
To right performance test result such as the table 2 of twisted pair wire among the embodiment one to embodiment three:
Table 2
Insulation Test result to the power cable among the embodiment one to embodiment three is as shown in table 3:
Table 3
In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (6)
1. ships maritime works closed-circuit TV camera cable, it is characterized in that: cable core comprises coaxial cable, pair twist heart yearn and power cable, the periphery of described cable core is surrounded with the polyester belt lapping layer, described polyester belt lapping layer is coated with the tinned copper wire screen, and described tinned copper wire screen is extruded with oversheath outward;
Described coaxial cable comprises coax cable center conductor, outwards is coated with coaxial cable insulated layer, coaxial cable shielding layer and coaxial cable sheath successively by described coax cable center conductor;
The center of described pair twist heart yearn comprise one group of twisted pair wire to a nonisulated copper conductor leaky line, described twisted pair wire is to heart yearns stranded the forming mutually of being insulated by two sub-threads, described sub-thread insulation heart yearn comprises the twisted pair wire conductor that is positioned at the center and is coated on the outer twisted pair wire insulating barrier of described twisted pair wire conductor, described twisted pair wire is to being surrounded with aluminium foil polyester composite band outward with leaky line, and described leaky line is electric with the aluminium lamination of described aluminium foil polyester composite band and contacts;
Described power cable comprises the power cable cored wire conductor and is coated on the outer power cable insulation layer of described power cable cored wire conductor.
2. ships maritime works closed-circuit TV camera cable according to claim 1, it is characterized in that: described coaxial cable has two, described pair twist heart yearn has two groups and two groups of pair of twisted cores cabling lay ratio differences of adjacent setting, described power cable has two and adjacent setting, two described coaxial cables are positioned at the central authorities of described cable core, and described pair twist heart yearn and described power cable lay respectively at the both sides of described coaxial cable.
3. ships maritime works closed-circuit TV camera cable according to claim 2 is characterized in that: described coax cable center conductor is stranded the forming of naked copper tow that seven diameters are 0.2mm, and stranded lay ratio is 12～15; Described coaxial cable insulated layer is a polyethylene foamed, and thickness is 0.9～0.95mm, and external diameter is 2.4mm～2.5mm; It is the bare copper wire braiding of 0.12～0.13mm that described coaxial cable shielding layer adopts diameter, and count is 90%, and the order number is 94～98 orders; Described coaxial cable sheath adopts Halogen elastomer or thermosets, and jacket thickness is 0.4～0.45mm; The entire outer diameter of described coaxial cable is 3.8～4.0mm.
4. ships maritime works closed-circuit TV camera cable according to claim 2, it is characterized in that: stranded the forming of tin-coated copper tow that it is 0.2mm that described twisted pair wire conductor adopts seven diameters respectively, stranded lay ratio is 8～12, and two described sub-thread insulating core cabling pitch differences; Described twisted pair wire insulating barrier is the Halogen cross-linked material, and insulation thickness is 0.3mm, and the insulation external diameter is 1mm; Stranded the forming of tin-coated copper tow that described leaky line is 0.2mm by seven diameters; Described aluminium foil polyester composite band is surrounded with two-layer, and every layer the rate of putting up is 30%～35%.
5. ships maritime works closed-circuit TV camera cable according to claim 2 is characterized in that: the power cable cored wire conductor of described power cable is stranded the forming of tin-coated copper tow that 50 diameters are 0.25mm, and stranded lay ratio is 8～10; The insulating material of described power cable insulation layer is the crosslinked halogen-free material, and insulation thickness is 0.6～0.7mm, and the insulation external diameter is 3.3～3.4mm.
6. according to each described ships maritime works closed-circuit TV camera cable in the claim 1 to 5, it is characterized in that: described polyester belt lapping layer is for double-deck wrapped, and polyester belt thickness is 0.04mm, the wrapped rate 25%～35% of putting up; Described tinned copper wire screen is twice structures on two, and percentage of braiding coverage 90%～95%, the diameter of described tinned copper wire are 0.15mm; Described oversheath is the elastomer crosslinked material of Halogen, and extruding thickness is 1.5～1.7mm; The finished cable external diameter is 14.5～17.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020681124 CN201904104U (en) | 2010-12-24 | 2010-12-24 | Cable of CCTV camera for ships and maritime works |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020681124 CN201904104U (en) | 2010-12-24 | 2010-12-24 | Cable of CCTV camera for ships and maritime works |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904104U true CN201904104U (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020681124 Expired - Lifetime CN201904104U (en) | 2010-12-24 | 2010-12-24 | Cable of CCTV camera for ships and maritime works |
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| Country | Link |
|---|---|
| CN (1) | CN201904104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097161A (en) * | 2010-12-24 | 2011-06-15 | 江苏远洋东泽电缆股份有限公司 | Cable for ship marine closed circuit television camera and manufacturing method thereof |
| CN104008814A (en) * | 2014-06-18 | 2014-08-27 | 昆山信昌电线电缆有限公司 | Halogen-free high-antiflaming total shielding communication cable |
-
2010
- 2010-12-24 CN CN 201020681124 patent/CN201904104U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097161A (en) * | 2010-12-24 | 2011-06-15 | 江苏远洋东泽电缆股份有限公司 | Cable for ship marine closed circuit television camera and manufacturing method thereof |
| CN104008814A (en) * | 2014-06-18 | 2014-08-27 | 昆山信昌电线电缆有限公司 | Halogen-free high-antiflaming total shielding communication cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110720 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |