CN109686492A - A kind of shielded coaxial signal cable of composition metal outer tube - Google Patents
A kind of shielded coaxial signal cable of composition metal outer tube Download PDFInfo
- Publication number
- CN109686492A CN109686492A CN201811552542.4A CN201811552542A CN109686492A CN 109686492 A CN109686492 A CN 109686492A CN 201811552542 A CN201811552542 A CN 201811552542A CN 109686492 A CN109686492 A CN 109686492A
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- CN
- China
- Prior art keywords
- signal cable
- composite pipe
- outer tube
- coaxial signal
- shielded coaxial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1808—Construction of the conductors
-
- 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
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1834—Construction of the insulation between the conductors
-
- 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
-
- 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
- H01B7/1875—Multi-layer sheaths
-
- 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
- H01B7/20—Metal tubes, e.g. lead sheaths
- H01B7/208—Metal tubes, e.g. lead sheaths composed of composite laminated metals
-
- 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
-
- 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
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The present invention relates to a kind of shielded coaxial signal cables of composition metal outer tube, including metal composite pipe, insulator and middle conductor, metal composite pipe has double-layer structure, middle conductor is located in metal composite pipe, insulator is filled in the space between metal composite pipe and middle conductor, metal composite pipe is cylindrical tube, outer diameter is 1.6~20mm, the thickness of outer layer and internal layer is respectively 0.1~3.0mm and 0.1~3.0mm, metal composite pipe is stainless steel-copper multiple tube, stainless steel-aluminium composite pipe or Solder for Al-Cu Joint Welding multiple tube, the material of middle conductor is copper, insulator is magnesia, aluminium oxide or silicon-dioxide powdery.A kind of shielded coaxial signal cable of composition metal outer tube of the invention not only has excellent shielding properties, but also has excellent high temperature resistant, resistance to compression, tension and shock resistance, applied widely, and production is simple, there is good application prospect.
Description
Technical field
The invention belongs to signal cable technical fields, are related to a kind of shielded coaxial signal cable of composition metal outer tube.
Background technique
Coaxial cable (Coaxial Cable) refers to there are two concentric conductor and conductor and shielded layer share same axle center
Cable.Coaxial cable is mainly used for carry high frequency electrical signals, radiofrequency signal and microwave signal, is widely used in mobile communication, leads to
Believe the related fieldss such as terminal, military electronic and aerospace.
Existing coaxial cable is respectively conductor layer, insulating layer, tissue shielded layer and external sheath layer, insulating layer from the inside to the outside
Insulating materials frequently with physical blowing polyethylene or expanded polytetrafluoroethyl(ne, high temperature resistant temperature is no more than 260 DEG C, fire prevention, resistance to
There is obvious deficiency in the performances such as high temperature and shock resistance, meanwhile, the high-side signals transmission field such as aerospace and nuclear power uses temperature
Often greater than 300 DEG C of degree, plastic insulation material is easy deterioration damage when high temperature height radiates；Organize shielded layer frequently with volume
Structure is knitted, the conventional material that oversheath uses is nonmetallic materials, such as polyvinyl chloride (PVC), silica gel and Teflon, existing same
The shielding properties of shaft cable is poor, when there is forceful electric power interference in the external world, the weak electric signal of transmission may Severe distortion, or even destroy with
Its instrument connected or instrument.
Therefore, the coaxial cable for studying a kind of advantages of good shielding performance has a very important significance.
Summary of the invention
The purpose of the invention is to overcome above-mentioned problems of the prior art, a kind of answering for advantages of good shielding performance is provided
Close the shielded coaxial signal cable of metal outer pipe.Shielded coaxial signal cable of the invention is in high/low-temperature impact, radiation and vibration
Etc. in the case where collective effects, remain to provide reliable signal transmission, strong antijamming capability conveys signal stabilization.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of shielded coaxial signal cable of composition metal outer tube, including metal composite pipe, insulator and middle conductor, gold
Belonging to multiple tube has lamination layer structure, and middle conductor is located in metal composite pipe, and insulator is filled in metal composite pipe and centre
Space between conductor.
The outer tube of shielded coaxial signal cable of the present invention uses metal composite pipe, compiles compared to nonmetallic materials or wire
Structure is knitted, the strong antijamming capability of metallic composite layer structure can transmit reliable and stable signal, and advantages of good shielding performance is multiple simultaneously
Metal material is closed relative to single metal material, there is excellent high temperature resistance, tensile strength, crushing resistance and shock resistance
Property, it is applicable to high temperature, fire prevention operating condition use, application range is more wide.
As a preferred technical scheme:
A kind of shielded coaxial signal cable of composition metal outer tube as described above, metal composite pipe is cylindrical tube, outer diameter
For 1.6~20mm.The size and shape of metal composite pipe of the present invention include but are not limited to this, the outer diameter of metal composite pipe and
Shape can be adaptively adjusted according to actual needs.
A kind of shielded coaxial signal cable of composition metal outer tube as described above, metal composite pipe have double-layer structure,
The thickness of outer layer and internal layer is respectively 0.1~3.0mm and 0.1~3.0mm, and the number of plies of metal composite pipe of the present invention is not limited to double
Layer can also be three layers or more.
A kind of shielded coaxial signal cable of composition metal outer tube as described above, the electric conductivity of metal composite inner tube layer
Higher than outer layer, internal layer has more excellent electric conductivity, is conducive to the electrical property for improving the shielding of shielded coaxial signal cable.
A kind of shielded coaxial signal cable of composition metal outer tube as described above, metal composite pipe are that stainless steel-copper is multiple
Close pipe, stainless steel-aluminium composite pipe or Solder for Al-Cu Joint Welding multiple tube.Metal composite pipe of the invention tension with higher, resistance to compression and anti-impact
Performance, and advantages of good shielding performance are hit, by taking stainless steel-copper multiple tube as an example, stainless steel-copper multiple tube is relative to copper outer tube, due to not
Rust steel outer layer tension, resistance to compression and shock resistance with higher, thus tension, resistance to compression and shock resistance are more excellent；No
Steel-copper multiple tube become rusty relative to stainless steel outer tube, since layers of copper has excellent electric conductivity, thus shielding properties is more excellent
It is good.
A kind of shielded coaxial signal cable of composition metal outer tube as described above, the material of middle conductor are copper.Copper tool
There is high conductivity, be conducive to quickly transmit signal, the material of middle conductor is without being limited thereto, other materials with high conductance
Matter is equally applicable to the present invention.
A kind of shielded coaxial signal cable of composition metal outer tube as described above, all copper is all oxygen-free copper.Anaerobic
Copper refers to that the not oxygen-containing fine copper for being also free of any deoxidier residue, oxygen-free copper not only have excellent electric conductivity, be conducive to
The electric conductivity of shielded coaxial signal cable is improved, while it is compared to common copper, also with high excellent of high temperature resistant and intensity
Point.
A kind of shielded coaxial signal cable of composition metal outer tube as described above, insulator be magnesia, aluminium oxide or
Silicon-dioxide powdery.Insulating material of the invention not only good insulation preformance, but also there is good high temperature resistant and fire line
Can, the insulator of formation has reasonable dielectric constant, so that the impedance operator of cable be made to meet the requirement for transmitting signal.
A kind of shielded coaxial signal cable of composition metal outer tube as described above, silicon-dioxide powdery are silica sand, quartz
The silicon dioxide powder of the different shapes such as powder, melting powder, SiO 2-ceramic powder or fumed silica.
A kind of shielded coaxial signal cable of composition metal outer tube as described above, metal composite pipe, insulator and centre
After each component of conductor assembles, process to form high compactness cable by drawing or rolling technology, compact structure, have resistance to compression,
Shock proof characteristic.
Beneficial effect
(1) a kind of shielded coaxial signal cable of composition metal outer tube of the invention, metal composite pipe high temperature resistance are excellent
Good, use temperature range is -270 DEG C~800 DEG C, and the material of insulator is magnesia, aluminium oxide or silicon-dioxide powdery,
It insulate at 800 DEG C -1000 DEG C good, coax signal cable obtained has good high temperature resistant and fire protecting performance；
(2) the shielded coaxial signal cable of a kind of composition metal outer tube of the invention, outer tube use metal composite pipe, metal
The worn-out function of the screen of multiple tube is strong；
(3) the shielded coaxial signal cable of a kind of composition metal outer tube of the invention, middle conductor, insulator and metal are multiple
It closes pipe to process to form compact texture by drawing or rolling technology, there is resistance to compression, shock proof characteristic；
(4) the shielded coaxial signal cable of a kind of composition metal outer tube of the invention, insulating materials select magnesia, oxidation
Aluminium or silicon-dioxide powdery, so that the insulator formed has reasonable dielectric constant, so that the impedance operator of cable be made to meet
Transmit the requirement of signal.
Detailed description of the invention
Fig. 1 and 2 is the diagrammatic cross-section in the shielded coaxial signal cable difference cutting direction of composition metal outer tube of the present invention；
Wherein, 1- metal composite pipe, 2- insulator, 3- middle conductor, 4- outer layer, 5- internal layer.
Specific embodiment
The invention will be further elucidated with reference to specific embodiments.It should be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, art technology
Personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Fixed range.
Embodiment 1
A kind of shielded coaxial signal cable of composition metal outer tube, as shown in Fig. 1~2, including outer tube metal composite pipe 1,
Insulator (magnesium oxide powder) 2 and middle conductor 3, middle conductor 3 are located in metal composite pipe 1, and insulator oxide magnesium powder body 2 is filled out
Fill the space between metal composite pipe 1 and middle conductor 3；
Wherein, metal composite pipe 1 is cylindrical tube, and metal composite pipe 1 has double-layer structure, is that stainless steel-oxygen-free copper is compound
Pipe, i.e., the double-layer structure of metal composite pipe 1 is made of stainless steel outer layer 4 and oxygen-free copper internal layer 5, and the outer diameter of metal composite pipe 1 is
The thickness of 4mm, outer layer 4 and internal layer 5 is respectively 0.8mm and 0.5mm；
The material of middle conductor 3 is oxygen-free copper.
Embodiment 2
A kind of shielded coaxial signal cable of composition metal outer tube, it is substantially the same manner as Example 1, the difference is that, gold
Category multiple tube is stainless steel-aluminium composite pipe, i.e. the double-layer structure of metal composite pipe is made of stainless steel outer layer and aluminium internal layer, outside
Diameter is 1.6mm, and the thickness of outer layer and internal layer is respectively 0.1mm and 0.1mm, and insulator is alumina powder.
Embodiment 3
A kind of shielded coaxial signal cable of composition metal outer tube, it is substantially the same manner as Example 1, the difference is that, gold
Category multiple tube is Solder for Al-Cu Joint Welding multiple tube, i.e. the double-layer structure of metal composite pipe is made of aluminium outer layer and copper internal layer, and outer diameter is
The thickness of 8.0mm, outer layer and internal layer is respectively 1.0mm and 1.0mm, and insulator is silica flour, and insulator of the invention can also be
The silicon-dioxide powdery of other forms, such as silica sand, melting powder, SiO 2-ceramic powder or fumed silica silicon dioxide powder
Body.
Embodiment 4
A kind of shielded coaxial signal cable of composition metal outer tube, it is substantially the same manner as Example 1, the difference is that, gold
Category multiple tube is Solder for Al-Cu Joint Welding multiple tube, i.e. the double-layer structure of metal composite pipe is made of aluminium outer layer and copper internal layer, and outer diameter is
The thickness of 20mm, outer layer and internal layer is respectively 3.0mm and 3.0mm, and insulator is SiO 2-ceramic powder, insulator of the invention
It can also be the silicon-dioxide powdery of other forms, such as silica sand, melting powder, silica flour or fumed silica silicon dioxide powder
Body.
It is verified, the shielded coaxial signal cable of above-mentioned composition metal outer tube of the invention high/low-temperature impact, radiation and
In the case where the collective effects such as vibration, remains to provide reliable signal transmission, not only there is excellent shielding properties, but also have
There are higher high temperature resistant, resistance to compression, tension and shock resistance, applied widely, production is simple, there is good application prospect.
Claims (9)
1. a kind of shielded coaxial signal cable of composition metal outer tube, it is characterized in that: including metal composite pipe, insulator and centre
Conductor, metal composite pipe have lamination layer structure, and middle conductor is located in metal composite pipe, and insulator is filled in metal composite pipe
Space between middle conductor.
2. a kind of shielded coaxial signal cable of composition metal outer tube according to claim 1, which is characterized in that metal is multiple
Closing pipe is cylindrical tube, and outer diameter is 1.6~20mm.
3. a kind of shielded coaxial signal cable of composition metal outer tube according to claim 2, which is characterized in that metal is multiple
It closes to manage and there is double-layer structure, the thickness of outer layer and internal layer is respectively 0.1~3.0mm and 0.1~3.0mm.
4. a kind of shielded coaxial signal cable of composition metal outer tube according to claim 3, which is characterized in that metal is multiple
The electric conductivity for closing inner tube layer is higher than outer layer.
5. a kind of shielded coaxial signal cable of composition metal outer tube according to claim 4, which is characterized in that metal is multiple
Closing pipe is stainless steel-copper multiple tube, stainless steel-aluminium composite pipe or Solder for Al-Cu Joint Welding multiple tube.
6. a kind of shielded coaxial signal cable of composition metal outer tube according to claim 5, which is characterized in that lead centre
The material of body is copper.
7. a kind of shielded coaxial signal cable of composition metal outer tube according to claim 6, which is characterized in that all
Copper is all oxygen-free copper.
8. a kind of shielded coaxial signal cable of composition metal outer tube according to claim 1, which is characterized in that insulator
For magnesia, aluminium oxide or silicon-dioxide powdery.
9. a kind of shielded coaxial signal cable of composition metal outer tube according to claim 8, which is characterized in that titanium dioxide
Silicon powder is silica sand, silica flour, melting powder, SiO 2-ceramic powder or fumed silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552542.4A CN109686492A (en) | 2018-12-19 | 2018-12-19 | A kind of shielded coaxial signal cable of composition metal outer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552542.4A CN109686492A (en) | 2018-12-19 | 2018-12-19 | A kind of shielded coaxial signal cable of composition metal outer tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109686492A true CN109686492A (en) | 2019-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811552542.4A Pending CN109686492A (en) | 2018-12-19 | 2018-12-19 | A kind of shielded coaxial signal cable of composition metal outer tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736511A (en) * | 2020-11-26 | 2021-04-30 | 广东核电合营有限公司 | Cable connection structure and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001307561A (en) * | 2000-04-18 | 2001-11-02 | Daido Steel Co Ltd | Shielded cable |
| CN101339824A (en) * | 2008-08-14 | 2009-01-07 | 上海西邦电气有限公司 | Composite insulating tube type bus and method for preparing the same |
| CN201681656U (en) * | 2010-03-19 | 2010-12-22 | 上海浦东电线电缆(集团)有限公司 | Direct-current high-voltage cable with composite metal shielding structure |
| CN103021577A (en) * | 2011-09-27 | 2013-04-03 | 中国电子科技集团公司第二十三研究所 | Implementation method of mineral insulated 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 |
-
2018
- 2018-12-19 CN CN201811552542.4A patent/CN109686492A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001307561A (en) * | 2000-04-18 | 2001-11-02 | Daido Steel Co Ltd | Shielded cable |
| CN101339824A (en) * | 2008-08-14 | 2009-01-07 | 上海西邦电气有限公司 | Composite insulating tube type bus and method for preparing the same |
| CN201681656U (en) * | 2010-03-19 | 2010-12-22 | 上海浦东电线电缆(集团)有限公司 | Direct-current high-voltage cable with composite metal shielding structure |
| CN103021577A (en) * | 2011-09-27 | 2013-04-03 | 中国电子科技集团公司第二十三研究所 | Implementation method of mineral insulated 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736511A (en) * | 2020-11-26 | 2021-04-30 | 广东核电合营有限公司 | Cable connection structure and manufacturing method thereof |
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Application publication date: 20190426 |