CN215417668U - Parallel ultrahigh frequency transmission cable for aerospace - Google Patents
Parallel ultrahigh frequency transmission cable for aerospace Download PDFInfo
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- CN215417668U CN215417668U CN202121216020.4U CN202121216020U CN215417668U CN 215417668 U CN215417668 U CN 215417668U CN 202121216020 U CN202121216020 U CN 202121216020U CN 215417668 U CN215417668 U CN 215417668U
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- tape
- parallel
- aerospace
- transmission cable
- ptfe
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 31
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 31
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004590 silicone sealant Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000011135 tin Substances 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000005253 cladding Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 9
- 230000005855 radiation Effects 0.000 description 7
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 6
- 229920009441 perflouroethylene propylene Polymers 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 231100000956 nontoxicity Toxicity 0.000 description 3
- 238000010943 off-gassing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Abstract
The utility model relates to the technical field of cables, and discloses a parallel ultrahigh frequency transmission cable for aerospace. The inner core assembly comprises a parallel line set and a ground wire, the parallel line set comprises a pair of core wires which are arranged in parallel, and the ground wire is arranged between the pair of core wires; each heart yearn all includes conductor and PTFE around the band, and PTFE is around the band cladding outside the conductor. The shielding longitudinal wrapping tape is wrapped outside the inner core combination body. The XL-ETFE jacket is wrapped outside the shielding longitudinal wrapping band. The cable has high processing performance, stable physical structure and electrical performance, and can meet the requirement of ultrahigh frequency transmission of more than 25 Gbps.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a parallel ultrahigh frequency transmission cable for aerospace.
Background
The common high-frequency transmission parallel cable generally comprises a conductor, an insulating layer, a metal shielding tape and an outer protective layer, wherein the insulating layer and the outer protective layer are not suitable for being used in extreme working environments such as aerospace and the like, the metal shielding tape adopts a transverse lapping spiral winding mode, so that a client is inconvenient to peel during processing, and when the client uses and bends, signal leakage is easy to occur in a gap of the transverse lapping tape, so that the original signal transmission performance of the client disappears. The cable can only meet the low-frequency transmission requirement of aerospace application, for example, the cable can be applied to a single channel below 14Gbps and cannot meet the ultrahigh-frequency transmission of more than 25 Gbps.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide the parallel ultrahigh frequency transmission cable for aerospace, which has high processing performance and stable electrical performance and can meet the ultrahigh frequency transmission requirement of more than 25 Gbps.
The purpose of the utility model is realized by the following technical scheme:
a parallel ultra-high frequency transmission cable for aerospace, comprising:
the inner core assembly comprises a parallel line group and a ground wire, the parallel line group comprises a pair of core wires which are arranged in parallel, and the ground wire is arranged between the pair of core wires; each core wire comprises a conductor and a PTFE (polytetrafluoroethylene) lapped tape, and the PTFE lapped tape is coated outside the conductor;
the shielding longitudinal wrapping tape is wrapped outside the inner core combination body; and
an XL-ETFE sheath, wherein the XL-ETFE sheath is coated outside the shielding longitudinal coating.
In one embodiment, the core assembly is formed by a pair of the core wires and the ground wire compacted and twisted.
In one embodiment, the PTFE wrapping tape includes a first wrapping tape and a second wrapping tape, the first wrapping tape is wrapped outside the conductor, and the second wrapping tape is wrapped outside the first wrapping tape.
In one embodiment, the shielding longitudinal wrapping tape is wrapped on the outer surfaces of the PTFE wrapping tape and the ground wire.
In one embodiment, the shielding longitudinal tape comprises a metal longitudinal tape.
In one embodiment, the material of the metal longitudinal wrapping tape is aluminum, tin, copper, silver or gold.
In one embodiment, the shielding longitudinal tape further comprises a silicone sealant layer coated on one side of the metal longitudinal tape.
In one embodiment, the thickness of PTFE around band is 50 ~ 150 um.
In one embodiment, the thickness of the shielding longitudinal wrapping tape is 15-40 um.
In one embodiment, the XL-ETFE sheath has a thickness of 0.1 to 0.4 mm.
Compared with the prior art, the utility model has at least the following advantages:
the utility model comprises a PTFE (polytetrafluoroethylene) wrapping tape, a shielding longitudinal wrapping tape and an XL-ETFE (XL-ETFE) sheath, wherein the PTFE wrapping tape is made of polytetrafluoroethylene, has the excellent characteristics of high temperature resistance, low temperature resistance, corrosion resistance, weather resistance and no toxicity, and is very suitable for aerospace environments. The shielding longitudinal wrapping belt adopts a longitudinal wrapping structure, so that a client can conveniently and rapidly peel the shielding longitudinal wrapping belt, and the processing efficiency of the client can be improved; when the cable is bent, a gap is not easy to appear, and the problem that the signal leakage is easy to occur in the gap of the transverse wrapping tape of the common cable can be solved; the core wire and the ground wire are fixed and do not slide relatively, so that the instability caused by relative displacement is reduced; the ground wire can be directly contacted with the metal shielding layer, signal transmission is not influenced, and the signal conduction rate is accelerated. The XL-ETFE sheath is made of irradiation crosslinking ethylene-tetrafluoroethylene copolymer, has stronger radiation-resistant effect compared with the traditional fluorinated ethylene propylene copolymer (FEP for short), can meet the requirements of extreme working environment of-55-125 ℃, and can meet the requirements of radiation resistance, thermal vacuum outgassing and the like of aerospace cables. The whole cable can keep stable physical structure and electrical property, has flexibility and processing practicability, can meet various processing requirements, not only can meet the requirements of aerospace application scenes, but also can meet the requirements of high-speed data transmission over 25Gbps, and greatly improves the popularization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a parallel ultra-high frequency transmission cable for aerospace according to an embodiment of the utility model.
Fig. 2 is a schematic structural diagram of a parallel ultra-high frequency transmission cable for aerospace according to an embodiment of the utility model.
Fig. 3 is a schematic structural view of a shielding longitudinal wrapping tape of the parallel ultra-high frequency transmission cable for aerospace according to an embodiment of the utility model.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, an aerospace parallel uhf transmission cable 10 includes an inner core assembly 110, a shielding tape 120, and an XL-ETFE sheath 130. The inner core assembly 110 includes a parallel line group and a ground line 112, the parallel line group includes a pair of core wires 111 arranged in parallel, the ground line 112 is arranged between the pair of core wires 111; each core wire 111 includes a conductor 1111 and a PTFE tape 1112, and the PTFE tape 1112 is wrapped around the conductor 1111. The shielding longitudinal wrapping tape 120 is wrapped outside the inner core assembly 110. The XL-ETFE sheath 130 is wrapped outside the shielding longitudinal wrapping tape 120.
The PTFE tape 1112 is made of polytetrafluoroethylene, has the excellent characteristics of high temperature resistance, low temperature resistance, corrosion resistance, weather resistance and no toxicity, and is very suitable for aerospace environments. The shielding longitudinal wrapping belt 120 adopts a longitudinal wrapping structure, so that a client can conveniently and rapidly peel the shielding longitudinal wrapping belt, and the processing efficiency of the client can be improved; when the cable is bent, a gap is not easy to appear, and the problem that the signal leakage is easy to occur in the gap of the transverse wrapping tape of the common cable can be solved; fixing the core wire 111 and the ground wire 112 so that the core wire and the ground wire do not slide relative to each other, and reducing instability caused by relative displacement of the core wire and the ground wire; the ground wire 112 and the metal shielding layer can be in direct contact, signal transmission is not affected, and the signal conduction rate is increased. The XL-ETFE sheath 130 is made of irradiation crosslinking ethylene-tetrafluoroethylene copolymer, has stronger radiation-resistant effect compared with the traditional fluorinated ethylene propylene copolymer (FEP for short), can meet the requirements of extreme working environment of-55-125 ℃, and can meet the requirements of radiation resistance, thermal vacuum outgassing and the like of aerospace cables. The whole cable can keep stable physical structure and electrical property, has flexibility and processing practicability, can meet various processing requirements, not only can meet the requirements of aerospace application scenes, but also can meet the requirements of high-speed data transmission over 25Gbps, and greatly improves the popularization.
Further, the inner core assembly 110 is formed by tightly pressing and twisting the pair of core wires 111 and the ground wire 112, and the compression coefficient (or the filling coefficient) of the inner core assembly can reach more than 0.8, namely the section of the gap is less than 20%, through pressing, the structural stability of the inner core assembly 110 is improved, the outer diameter of the inner core assembly is reduced, and the materials of the shielding longitudinal wrapping tape 120 and the XL-ETFE sheath 130 can be reduced, so that the weight and the production cost of the cable are reduced, and meanwhile, the longitudinal water blocking of the conductor 1111 is facilitated to be realized.
Further, the PTFE tape 1112 comprises a first tape 1112a and a second tape 1112b, the first tape 1112a is wrapped around the conductor 1111 externally, the second tape 1112b is wrapped around the first tape 1112a externally, so that the wrapping tightness and the sealing line of the PTFE tape 1112 to the conductor 1111 can be improved, and the insulation property and the waterproof property are improved. The directions of the first wrapping tape 1112a and the second wrapping tape 1112b may be the same or opposite, for example, the direction of the first wrapping tape 1112a is clockwise, the direction of the second wrapping tape 1112b is counterclockwise, and the winding starting points of the first wrapping tape 1112a and the second wrapping tape 1112b may be the same or opposite, for example, the winding starting point of the first wrapping tape 1112a is at the upper end of the conductor 1111, and the winding starting point of the second wrapping tape 1112b is at the lower end of the conductor 1111.
Further, the shielding longitudinal wrapping tape 120 is wrapped on the outer surfaces of the PTFE wrapping tape 1112 and the ground wire 112, so that the shielding effect can be effectively enhanced, the signal loss is reduced, and the signal transmission stability of the cable is improved.
Further, referring to fig. 3, the shielding longitudinal wrapping tape 120 includes a metal longitudinal wrapping tape 121. For example, the material of the metal longitudinal wrapping tape 121 is aluminum, tin, copper, silver or gold.
Further, the shielding longitudinal tape 120 further comprises a silicone sealant layer 122, and the silicone sealant layer 122 is coated on one side surface of the metal longitudinal tape 121, so that the fixing effect of the shielding longitudinal tape 120 on the core wire 111 and the ground wire 112 can be further improved, and the structural stability of the cable is improved. The silicone sealant layer 122 is resistant to high temperature and low temperature, can resist strong ion radiation, is non-volatile in ultra-vacuum, and is very suitable for aerospace environments.
In order to further improve the physical property and the electrical property of cable, the thickness of PTFE around band 1112 is preferably 50 ~ 150um, the thickness of shielding longitudinal tape 120 is preferably 15 ~ 40um, the thickness of XL-ETFE sheath 130 is preferably 0.1 ~ 0.4 mm. In this case, the physical and electrical properties of the cable are superior. More preferably, the thickness of the PTFE lapping tape 1112 is 100um, the thickness of the shielding longitudinal tape 120 is 28um, and the thickness of the XL-ETFE sheath 130 is 0.25 mm. At this time, the physical and electrical properties of the cable are optimized.
Compared with the prior art, the utility model has at least the following advantages:
the novel high-temperature-resistant shielding tape comprises a PTFE (polytetrafluoroethylene) wrapping tape 1112, a shielding longitudinal tape 120 and an XL-ETFE (ethylene propylene diene monomer) sheath 130, wherein the PTFE wrapping tape 1112 is made of polytetrafluoroethylene, has the excellent characteristics of high temperature resistance, low temperature resistance, corrosion resistance, weather resistance and no toxicity, and is very suitable for aerospace environments. The shielding longitudinal wrapping belt 120 adopts a longitudinal wrapping structure, so that a client can conveniently and rapidly peel the shielding longitudinal wrapping belt, and the processing efficiency of the client can be improved; when the cable is bent, a gap is not easy to appear, and the problem that the signal leakage is easy to occur in the gap of the transverse wrapping tape of the common cable can be solved; fixing the core wire 111 and the ground wire 112 so that the core wire and the ground wire do not slide relative to each other, and reducing instability caused by relative displacement of the core wire and the ground wire; the ground wire 112 and the metal shielding layer can be in direct contact, signal transmission is not affected, and the signal conduction rate is increased. The XL-ETFE sheath 130 is made of irradiation crosslinking ethylene-tetrafluoroethylene copolymer, has stronger radiation-resistant effect compared with the traditional fluorinated ethylene propylene copolymer (FEP for short), can meet the requirements of extreme working environment of-55-125 ℃, and can meet the requirements of radiation resistance, thermal vacuum outgassing and the like of aerospace cables. The whole cable can keep stable physical structure and electrical property, has flexibility and processing practicability, can meet various processing requirements, not only can meet the requirements of aerospace application scenes, but also can meet the requirements of high-speed data transmission over 25Gbps, and greatly improves the popularization.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A parallel UHF transmission cable for aerospace, comprising:
the inner core assembly comprises a parallel line group and a ground wire, the parallel line group comprises a pair of core wires which are arranged in parallel, and the ground wire is arranged between the pair of core wires; each core wire comprises a conductor and a PTFE (polytetrafluoroethylene) lapped tape, and the PTFE lapped tape is coated outside the conductor;
the shielding longitudinal wrapping tape is wrapped outside the inner core combination body; and
an XL-ETFE sheath, wherein the XL-ETFE sheath is coated outside the shielding longitudinal coating.
2. The aerospace parallel uhf transmission cable of claim 1, wherein the core assembly is formed by a compacted and twisted pair of the core wire and the ground wire.
3. The aerospace parallel ultra-high frequency transmission cable according to claim 1, wherein the PTFE tape comprises a first tape and a second tape, the first tape is wrapped outside the conductor, and the second tape is wrapped outside the first tape.
4. The aerospace parallel ultra-high frequency transmission cable according to claim 1, wherein the shielding longitudinal wrapping tape is wrapped around outer surfaces of the PTFE wrapping tape and the ground wire.
5. The aerospace parallel uhf transmission cable of claim 1, wherein the shielding longitudinal tape comprises metal longitudinal tape.
6. The aerospace parallel UHF transmission cable according to claim 5, wherein the longitudinal metal wrapping tape is made of aluminum, tin, copper, silver or gold.
7. The aerospace parallel ultra high frequency transmission cable of claim 5, wherein the shielding longitudinal tape further comprises a silicone sealant layer coated on one side of the metal longitudinal tape.
8. The aerospace parallel ultra-high frequency transmission cable according to claim 1, wherein the PTFE tape has a thickness of 50-150 um.
9. The aerospace parallel ultra-high frequency transmission cable according to claim 1, wherein the shielding longitudinal wrapping tape is 15-40 um thick.
10. The aerospace parallel UHF transmission cable of claim 1, wherein the XL-ETFE jacket has a thickness of 0.1-0.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121216020.4U CN215417668U (en) | 2021-06-01 | 2021-06-01 | Parallel ultrahigh frequency transmission cable for aerospace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121216020.4U CN215417668U (en) | 2021-06-01 | 2021-06-01 | Parallel ultrahigh frequency transmission cable for aerospace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215417668U true CN215417668U (en) | 2022-01-04 |
Family
ID=79678363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121216020.4U Active CN215417668U (en) | 2021-06-01 | 2021-06-01 | Parallel ultrahigh frequency transmission cable for aerospace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215417668U (en) |
-
2021
- 2021-06-01 CN CN202121216020.4U patent/CN215417668U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240112 Address after: No.6, Qingli Second Road, Shuikou Street, Huicheng District, Huizhou, Guangdong Province, 516000 Patentee after: LTK Electric Wire (Huizhou) Ltd. Patentee after: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee after: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Patentee after: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. Address before: 516006 Desai third industrial zone, Zhongkai Avenue, Chenjiang, Huizhou, Guangdong Patentee before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Patentee before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. Patentee before: LTK ELECTRIC WIRE (CHANGZHOU) Ltd. |
|
| TR01 | Transfer of patent right |