CN109003740B - MINI type ultra-six type non-shielding network data cable - Google Patents
MINI type ultra-six type non-shielding network data cable Download PDFInfo
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- CN109003740B CN109003740B CN201810754299.8A CN201810754299A CN109003740B CN 109003740 B CN109003740 B CN 109003740B CN 201810754299 A CN201810754299 A CN 201810754299A CN 109003740 B CN109003740 B CN 109003740B
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- 230000001681 protective effect Effects 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/04—Cables with twisted pairs or quads with pairs or quads mutually positioned to reduce cross-talk
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/005—Quad constructions
-
- 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
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
- H01B7/1815—Protections not provided for in groups H01B7/182 - H01B7/26 composed of longitudinal inserts
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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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- 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
Abstract
The invention relates to a MINI type ultra-six type non-shielding network data cable, which comprises an outer protective sleeve with a wavy inner wall, wherein four twisted wire pairs and a central supporting frame for mutually isolating the four twisted wire pairs are arranged in the outer protective sleeve, and two twisted wires of each twisted wire pair form a pair pitch circle; the central supporting frame is a star-shaped solid frame with four cambered surfaces and four star angles; tooth width w=0.8 mm and tooth depth h=0.3 mm of the wave tooth; the thickness T1 = 0.4mm at the thinnest point of the outer protective sheath; the core wire diameter D1=0.585-0.59 mm of each stranded wire, the outer diameter D2=1.03-1.05 mm of the insulating sheath, and the diameter D3=2.06-2.10 mm of each pair of twisted rings; the maximum width W2=3.6-3.8 mm of the central supporting frame, the inner diameter D4=2.1-2.15 mm of each cambered surface, and the corner tip thickness T2=0.3 mm of each star corner. The invention is beneficial to controlling the outer diameter of the cable, and the outer diameter can be as thin as 6.9+/-0.1 mm.
Description
Technical Field
The invention relates to structural improvement of a MINI type ultra-six type unshielded network data cable.
Background
The application of the super-six types of cables in data centers is becoming more and more widespread at present. However, in the traditional super-six-class cable, the highest signal transmission frequency index is required to be improved to 500MHz on the basis of 250MHz of the six-class cable, in order to meet the improvement of transmission performance, the cross filling strips from the inner conductor of the whole cable to the center are all much larger than the design sizes of the common six-class cable, the traditional method in the industry is to enlarge the size of the center cross filling framework, meanwhile, the contact part of the outer sheath and the cable core adopts the inner teeth with rectangular shapes, the thickness of the outer wall of the common tooth depth plus sheath is thinnest between 1.3 and 1.5mm, and the outer diameter of the cable core is 5.5-5.8 mm, so that the outer diameter of the finished product of the traditional super-six-class cable can reach about 8.0mm +/-0.3. Because the space of computer lab and data center is limited, can place the number of cable in same space, can reduce greatly because of the amplification of cable external diameter. Therefore, research and development of the MINI type CAT6AUTP cable are necessary, for example, the outer diameter of the cable with more than six types is effectively reduced, the transmission performance is improved, the laying space of the cable is greatly saved, and particularly, the research and development of the MINI type CAT6AUTP cable is particularly important for a data center with limited space or a machine room to reduce consumption and save energy, and the successful development of the cable can generate obvious economic and social benefits.
Disclosure of Invention
The invention discloses a MINI type ultra-six type non-shielding network data cable, which aims to improve the defects of the existing similar products.
The invention adopts the following technical scheme:
the MINI type ultra-six type non-shielding network data cable comprises an outer protective sleeve, wherein four twisted wire pairs and a central supporting frame for mutually isolating the four twisted wire pairs are arranged in the outer protective sleeve, and two twisted wires of each twisted wire pair form a pair pitch circle; the central supporting frame is a star-shaped solid frame with four cambered surfaces and four star angles, the inner wall of the outer protecting sleeve is provided with wave teeth, and four twisted wire pairs are separated into the four cambered surfaces by the four star angles and are fixed in the outer protecting sleeve by the inner and outer matching of the four cambered surfaces and the wave teeth on the inner wall of the outer protecting sleeve;
tooth width w=0.8 mm and tooth depth h=0.3 mm of the wave tooth;
the thickness T1 = 0.4mm at the thinnest point of the outer protective sheath;
the core diameter D1=0.585-0.59 mm of each stranded wire, the outer diameter D2=1.03-1.05 mm of the insulating sheath, and the diameter D3=2.06-2.10 mm of each pair of twisted rings;
the maximum width W2=3.6-3.8 mm of the central supporting frame, the diameter D4=2.10-2.15 mm of each cambered surface, and the corner tip thickness T2=0.3 mm of each star corner.
Preferably, the tolerance of the twisting pitch of the four twisted wire pairs is +/-0.05 mm.
As a preferable scheme, the pair lay values of the four twisted wire pairs are 13.8-13.9, 8.9-9.0 and 9.9-10,8.3-8.4 mm.
As a preferable scheme, the cabling pitch of the total twisting of the four twisted wire pairs and the central supporting frame is 18-19 times of the outer diameter of the cabling.
As an optimal scheme, the outer protective sleeve is made of a low-smoke high-flame-retardance PVC material, and the Shore hardness value of the outer protective sleeve is 92-93 Shore A.
As a preferable scheme, the tooth tip of the wave tooth is a smooth convex cambered surface.
As a preferable scheme, the central supporting frame is made of LSZH low-smoke halogen-free material.
The beneficial effects of the invention are as follows:
1, as the contact surface of each twisted pair and the central supporting frame is arc-shaped, the center of the central supporting frame is solid, the physical distance between each twisted pair is greatly improved, and compared with the traditional cross structure, the optimal design is more beneficial to greatly improving the signal anti-interference capability between the twisted pairs;
2, as the maximum width L of the central supporting frame is smaller than 3.8mm, the cabling outer diameter of the inner cable core of the cable can be controlled to be 5.3-5.4 mm, further the outer diameter of a finished product is controlled to be 6.9+/-0.1 mm, the outer diameter of the finished product is greatly optimized, and compared with the traditional super-six-class cable, the weight of the cable per 305m is 4-5 KG, the weight can be reduced by 20%, and the diameter is reduced by 15%;
3, the central supporting frame adopts LSZH, so that on one hand, the material is easy to plasticize and form, and meanwhile, the central supporting frame has a certain supporting force outwards, and the central supporting frame cannot be pressed and deformed by a cable core, thereby being beneficial to the stability of the internal structure of the cable; meanwhile, the base material of the LSZH is PE polyethylene, so that the dielectric constant epsilon of the LSZH is close to PE, the cable core is kept to have a relatively low comprehensive dielectric constant, and the signal attenuation index of the cable is improved. Meanwhile, the halogen content of the cable and the comprehensive smoke amount during the combustion of the cable can be reduced, so that the cable is an optimal design of the environment-friendly cable;
the average pitch of the four twisted wire pairs is smaller, so that the aim of improving various crosstalk indexes among the wire pairs is fulfilled, but the reduction of the twisted wire pair pitch can improve the actual transmission distance of signals in the cable and is not beneficial to the overall insertion loss index of the cable, therefore, the conductor diameter and the insulation outer diameter need to be optimally designed, and the conductor diameter is 0.585-0.59 mm and the insulation outer diameter is 1.03' -1.05 mm, so that the negative influence of the smaller twisted wire pair pitch on the comprehensive insertion loss index of the cable can be compensated and improved;
the average pitch of the four twisted wire pairs is reduced as much as possible, which is beneficial to the improvement of the crosstalk resistance between the wire pairs;
the inner wall of the outer protective sleeve is designed to be of a wave fine tooth type structure, so that on one hand, the inner skin layer can be effectively contacted with the cable core in a multipoint manner, and the 4 cambered surfaces of the inner star-shaped center supporting frame are supported, 4 twisted wire pairs are effectively isolated, and the relative physical position relationship is firmly fixed by fine wave teeth and the arc surfaces, so that signal crosstalk attenuation between the wire pairs is greatly improved;
and 7, the outer protective sleeve is made of a low-smoke high-flame-retardant PVC material, the Shore hardness value of the outer protective sleeve is designed to be 92-93 Shore A, so that the hardness is favorable for the wavy teeth of the wire inner skin to be meshed with the cable core, and meanwhile, the whole cable is not easy to construct and place because the outer skin is too hard. If the Shore hardness value is smaller, the relative position relation of the inner cable core cannot be well fixed due to the fact that the outer skin is too soft, so that the stability of the high-frequency transmission performance of the 6A cable is not facilitated;
after 8 is optimized, the main technical characteristic indexes of the invention when working at 500MHz are as follows:
insert LOSS: 45dB/100m or less
Return LOSS: not less than 15.5dB
Next (near-end crosstalk attenuation): not less than 38dB
Psnext (near-end crosstalk-attenuating power sum): and more than or equal to 35dB.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of an outer protective sheath according to an embodiment of the present invention;
FIG. 3 is a schematic view of a central support structure according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a twisted pair structure according to an embodiment of the present invention.
Detailed Description
The invention is described below with reference to the drawings and specific embodiments.
References 1-4:
a MINI type ultra-six type non-shielding network data cable comprises an outer protective sleeve 1, wherein four twisted wire pairs 2 and a central supporting frame 3 used for mutually isolating the four twisted wire pairs 2 are arranged in the outer protective sleeve 1, and two twisted wires of each twisted wire pair 2 form a pair pitch circle 4.
The central supporting frame 3 is a star-shaped solid frame with four cambered surfaces and four star angles, the inner wall of the outer protecting sleeve 1 is provided with wave teeth 101, and the four twisted wire pairs 2 are separated into the four cambered surfaces by the four star angles and are fixed in the outer protecting sleeve 1 by the inner and outer matching of the four cambered surfaces and the wave teeth 101 on the inner wall of the outer protecting sleeve 1.
The tooth width w=0.8 mm and the tooth depth h=0.3 mm of the wavy tooth 101.
The thickness t1=0.4 mm of the thinnest point of the outer protective sheath 1.
The diameter d1=0.585-0.59 mm of the core wire 201 of each twisted wire, the outer diameter d2=1.03-1.05 mm of the insulating sheath 202, and the diameter d3=2.06-2.10 mm of each pair of knuckle circles 4.
The maximum width w2=3.6-3.8 mm of the central support frame 3, the diameter d4=2.10-2.15 mm of each cambered surface thereof, and the corner tip thickness t2=0.3 mm of each star-corner thereof.
The tolerance of the twisting pitch of the four twisted wire pairs 2 is +/-0.05 mm.
The pair lay values of the four pair twisted wire pairs 2 are 13.8-13.9, 8.9-9.0 and 9.9-10,8.3-8.4 mm.
The cabling pitch of the four twisted wire pairs 2 and the central supporting frame 3 is 18-19 times of the outer diameter of the cabling.
The outer protective sleeve 1 is made of low-smoke high-flame-retardance PVC material, and the Shore hardness value of the outer protective sleeve is 92-93 Shore A.
The tooth tip of the wavy tooth 101 is a smooth convex arc surface.
The center supporting frame 3 is made of LSZH low-smoke halogen-free material.
Through the improvement, the outer diameter of the cabling of the invention can be limited to 6.9+/-0.1 mm.
Claims (7)
1. The MINI ultra-six-type non-shielding network data cable comprises an outer protective sleeve (1), wherein four twisted wire pairs (2) and a central supporting frame (3) used for isolating the four twisted wire pairs (2) from each other are arranged in the outer protective sleeve (1), and two twisted wires of each twisted wire pair (2) form a twisted pair pitch circle (4); the method is characterized in that: the central supporting frame (3) is a star-shaped solid frame with four cambered surfaces and four star angles, the inner wall of the outer protecting sleeve (1) is provided with wavy teeth (101), the four twisted wire pairs (2) are separated into the four cambered surfaces by the four star angles, and the four cambered surfaces are matched with the wavy teeth (101) on the inner wall of the outer protecting sleeve (1) in an inner-outer manner to be fixed in the outer protecting sleeve (1);
tooth width w=0.8 mm and tooth depth h=0.3 mm of the wave tooth (101);
the thickness T1 = 0.4mm of the thinnest point of the outer protective sleeve (1);
the diameter D1=0.585-0.59 mm of the core wire (201) of each stranded wire, the outer diameter D2=1.03-1.05 mm of the insulating sheath (202), and the diameter D3=2.06-2.10 mm of each pair of knuckle circles (4);
the maximum width W2=3.6-3.8 mm of the central supporting frame (3), the diameter D4=2.10-2.15 mm of each cambered surface, and the corner tip thickness T2=0.3 mm of each star corner.
2. The MINI ultra-six type unshielded network data cable according to claim 1, wherein: the tolerance of the twisting pitch of the four twisted wire pairs (2) is +/-0.05 mm.
3. The MINI-type ultra-six non-shielded network data cable according to claim 2, wherein: the pair lay values of the four twisted wire pairs (2) are 13.8-13.9, 8.9-9.0 and 9.9-10,8.3-8.4 mm.
4. The MINI ultra-six type unshielded network data cable according to claim 1, wherein: the total twisted cabling pitch of the four twisted wire pairs (2) and the central supporting frame (3) is 18-19 times of the outer diameter of the cabling.
5. The MINI ultra-six type unshielded network data cable according to claim 1, wherein: the outer protective sleeve (1) is made of low-smoke high-flame-retardance PVC material, and the Shore hardness value of the outer protective sleeve is 92-93 Shore A.
6. The MINI ultra-six type unshielded network data cable according to claim 1, wherein: the tooth tip of the wave tooth (101) is a smooth convex cambered surface.
7. The MINI ultra-six type unshielded network data cable according to claim 1, wherein: the central supporting frame (3) is made of LSZH low-smoke halogen-free material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810754299.8A CN109003740B (en) | 2018-07-11 | 2018-07-11 | MINI type ultra-six type non-shielding network data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810754299.8A CN109003740B (en) | 2018-07-11 | 2018-07-11 | MINI type ultra-six type non-shielding network data cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109003740A CN109003740A (en) | 2018-12-14 |
| CN109003740B true CN109003740B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810754299.8A Active CN109003740B (en) | 2018-07-11 | 2018-07-11 | MINI type ultra-six type non-shielding network data cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN109003740B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6222130B1 (en) * | 1996-04-09 | 2001-04-24 | Belden Wire & Cable Company | High performance data cable |
| CN101719398A (en) * | 2010-01-11 | 2010-06-02 | 浙江兆龙线缆有限公司 | Super-six type unshielded data cable |
| CN202434260U (en) * | 2012-02-02 | 2012-09-12 | 华迅工业(苏州)有限公司 | Novel double-sheath filled super-six unshielded paired cable for data communication |
| CN202650704U (en) * | 2012-06-29 | 2013-01-02 | 上海天诚通信技术有限公司 | Category 6+ network cable |
| CN203386534U (en) * | 2013-07-03 | 2014-01-08 | 宁波能士通信设备有限公司 | Super-six unshielded data communication cable |
| CN203521034U (en) * | 2013-03-28 | 2014-04-02 | 江苏亨通线缆科技有限公司 | Category 6+ skeleton type cable |
| CN205542162U (en) * | 2016-04-09 | 2016-08-31 | 江苏东强股份有限公司 | High fire -retardant hyperfrequency digital communication cable |
| CN208315274U (en) * | 2018-07-11 | 2019-01-01 | 李祖钱 | A kind of MINI type surpasses six class unmasked network data cables |
-
2018
- 2018-07-11 CN CN201810754299.8A patent/CN109003740B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6222130B1 (en) * | 1996-04-09 | 2001-04-24 | Belden Wire & Cable Company | High performance data cable |
| CN101719398A (en) * | 2010-01-11 | 2010-06-02 | 浙江兆龙线缆有限公司 | Super-six type unshielded data cable |
| CN202434260U (en) * | 2012-02-02 | 2012-09-12 | 华迅工业(苏州)有限公司 | Novel double-sheath filled super-six unshielded paired cable for data communication |
| CN202650704U (en) * | 2012-06-29 | 2013-01-02 | 上海天诚通信技术有限公司 | Category 6+ network cable |
| CN203521034U (en) * | 2013-03-28 | 2014-04-02 | 江苏亨通线缆科技有限公司 | Category 6+ skeleton type cable |
| CN203386534U (en) * | 2013-07-03 | 2014-01-08 | 宁波能士通信设备有限公司 | Super-six unshielded data communication cable |
| CN205542162U (en) * | 2016-04-09 | 2016-08-31 | 江苏东强股份有限公司 | High fire -retardant hyperfrequency digital communication cable |
| CN208315274U (en) * | 2018-07-11 | 2019-01-01 | 李祖钱 | A kind of MINI type surpasses six class unmasked network data cables |
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| Publication number | Publication date |
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| CN109003740A (en) | 2018-12-14 |
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