CN209297775U - Coaxial cable for automobile application - Google Patents
Coaxial cable for automobile application Download PDFInfo
- Publication number
- CN209297775U CN209297775U CN201821447393.0U CN201821447393U CN209297775U CN 209297775 U CN209297775 U CN 209297775U CN 201821447393 U CN201821447393 U CN 201821447393U CN 209297775 U CN209297775 U CN 209297775U
- Authority
- CN
- China
- Prior art keywords
- conducting wire
- conductive unit
- shielded layer
- coaxial cable
- copper
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- 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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
-
- 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
- H01B11/1813—Co-axial cables with at least one braided conductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/016—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables
- H01B13/0162—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables of the central conductor
Landscapes
- Communication Cables (AREA)
- Insulated Conductors (AREA)
Abstract
The coaxial cable (100) that the utility model relates to a kind of for automobile application comprising: central conductive unit (1) is used for transmission signal；Shielded layer (4) shields central conductive unit for being grounded comprising being set as netted a plurality of conducting wire (40)；Dielectric material (2), between centrally disposed conductive unit (1) and shielded layer (4), so that central conductive unit (1) and shielded layer (4) are insulated, and insulating sheath (5), it is arranged around the shielded layer (4)；Wherein, at least some conducting wires (40) of shielded layer (4) include aluminium core (41)；And central conductive unit (1) includes a plurality of conducting wire (10), wherein at least one conducting wire of central conductive unit is made of copper.
Description
Technical field
The utility model patent application for industrial invention is related to a kind of coaxial cable for automobile application.
Background technique
It is well known that coaxial cable includes: the center conductor for being used for transmission electric signal；Shielded layer, relative to central conductive
Unit is located at circumferential position, for being grounded the interference to shield to central conductive unit；Dielectric material, being situated between, it is conductive single to be set to center
Between member and shielded layer, center conductor and shielded layer are insulated；And surround the insulating sheath of the shielded layer.Shielded layer generally by
The webbed conducting wire composition of shape, also referred to as " wire sheathing (bonding braid) ".
EP1469486A1 discloses a kind of conducting wire, and core and main body (mass) are by being folded into the same lamination of the CCA of tubulose
Material is made.As relevant to the mechanical property of the complexity of production process and the cellular conductor made of curved copper sheet several
Factor so that this coaxial cable it is prohibitively expensive, less flexibly and be easy to be broken during crooked test.Therefore, this to answer
With being typically used in TV industry (therefore for static application), and it may not apply to auto industry.
GB1310334A discloses a kind of axial cable, and wherein center conductor is made of the solid wire that can be used CCA to manufacture,
Pass through the exterior metal sheets and the insulation of a series of vinyl disc as shielding.The coaxial cable does not allow using in auto industry
The standard connector used, and need very high investment to modify connector.This solution is mechanically very
It is weak, and do not allow for cable to connect with other component, such as with folder (when band can be such that the internal structure of cable becomes when pulled
Shape), or other connections are carried out due to operating for braid, it keeps the cables in and is related to tensioning and pull operation together, this
A little operations can change the geometry of cable and change its performance.This coaxial cable is the Typical solutions of static application,
There is Low ESR to bend cycles are repeated, and be unsatisfactory for the cable requirement of automobile application.
US6265667B1 discloses a kind of coaxial cable, has central conductive unit and by the thread metal of multiple CCA
Braiding layer.In particular, central conductive unit may include a plurality of CCA twisted wire.The patent document is described for preventing cable
Metal oxidation technology.A kind of service life of particular matter for prolonging coaxial cable (can be stored and can for a long time
To run under extreme conditions)；However, this substance reduces the electric conductivity and solderability of metal parts, need before processing
Cleaning appropriate to be carried out to it to obtain better welding quality.And the process is for finished product, it is a large amount of in particular for carrying out
It is expensive for the product of assembling and is affected because of quality problems.
Same applicant under one's name, WO2014/135419 discloses a kind of axial cable, wherein center conductor and shielding
Layer is formed by more CCA lines.Due to this solution, cable is cheap and light-weight, but it does not allow to obtain small size
To guarantee good electric property, such as the enough impedances and low-loss of stringent Customer Standard defined, that is, adjust transmission
With the basic parameter for receiving radiofrequency signal.In fact, in order to ensure reliably operating, the minimum diameter of the aluminum steel of CCA conducting wire is
0.13mm；Be less than the aluminum steel of 0.13mm for diameter, it cannot be guaranteed that enough aluminum steel mechanical strengths, and due to processing operation and
Fracture suddenly frequent occurrence.The state of the center conductor of coaxial cable is crucial, because when terminal compression joint and conducting wire deformation
When can produce fracture, center conductor is by shearing force, to damage the operation of coaxial cable completely.Therefore, it is necessary to increase center
The minimum diameter of the aluminum steel of conducting wire reaches the value of 0.27mm, and change the electricity applied by Customer Standard in some cases
Feature.
Utility model content
The purpose of this utility model is to overcome the prior art by providing a kind of coaxial cable suitable for automobile application
The shortcomings that, which is suitable for minimizing and guaranteeing enough impedances and low-loss, this is by stringent Customer Standard
Forced.
Another purpose of the utility model is to disclose this coaxial cable, and it is suitable for dynamic applications, such as automobile to answer
With, while being efficient, effective, cheap and easily fabricated.
According to the utility model, these purposes are realized by the claimed feature of appended technical solution 1.
Advantageous embodiment indicates to embody in other technologies scheme.
According to the utility model, the coaxial cable for automobile application includes:
Central conductive unit, is used for transmission signal,
Shielded layer shields the central conductive unit for being grounded comprising being set as netted a plurality of conducting wire,
Dielectric material, between centrally disposed conductive unit and shielded layer, so that central conductive unit and shielded layer are exhausted
Edge, and
Insulating sheath is arranged around the shielded layer.
Shielded layer includes a plurality of conducting wire, wherein at least some described conducting wires are aluminium core.
Central conductive unit includes a plurality of conducting wire, and conducting wire described in wherein at least one is made of copper or copper alloy.
The fact that at least one conducting wire of central conductive unit is made of copper allows to reduce the diameter of the conducting wire, to have
There are enough impedances and low-loss, as stringent Customer Standard is forced, while guaranteeing the mechanical strength for being used for automobile application,
Its standard coaxial cable is crimped into standard connector and alternating bending.
Detailed description of the invention
The supplementary features of the utility model will be more obvious from detailed description with reference to the accompanying drawings, and wherein attached drawing is to say
The purpose and not restrictive of bright property, in which:
Fig. 1 is a partial cross section perspective view according to the utility model for the coaxial cable of automobile application；
Fig. 2 is the perspective view of the central conductive unit of the coaxial cable in Fig. 1；
Fig. 3 is the sectional view of the coaxial cable in Fig. 1；
Fig. 3 A is the details enlarged drawing of Fig. 3, shows the single wire of central conductive unit；And
Fig. 3 B is the details enlarged drawing of Fig. 3, shows the single wire of wire sheathing.
Specific embodiment
With reference to attached drawing, the coaxial cable for automobile application of the utility model is described, appended drawing reference 100 is usually used
It indicates.
With reference to Fig. 1 and Fig. 3, coaxial cable 100 includes:
Central conductive unit 1,
The dielectric material 2 being arranged around central conductive unit 1,
The shielded layer 4 being arranged around dielectric material 2, and
The insulating sheath 5 being arranged around shielded layer 4.
Optionally, coaxial cable 100 can also include the secondary shielding layer being arranged between dielectric material 2 and shielded layer 4
3。
Central conductive unit 1 is used for transmission electric signal.Central conductive unit 1 includes a plurality of conducting wire 10 being suitably set.
With reference to Fig. 3 A, at least one conducting wire 10 of central conductive unit is made of copper (CU) or copper alloy (CW).According to answering
With the overall diameter of the conducting wire 10 of central conductive unit is 0.05mm~1mm.
Advantageously, the diameter of conducting wire 10 can be less than 0.2mm, to optimize impedance and to minimize loss.Further into
Row experiment test, it is found by the applicant that the optimum diameter of conducting wire 10 can be 0.12~0.16mm.In fact, minor diameter (0.12~
Copper 0.16mm) ensures the mechanical strength suitable for automobile application, and standard coaxial cable standard connector crimping is simultaneously curved
It is bent.
Optionally, the conducting wire 10 of central conductive unit includes the copper core 11 protected by tin coating 12.Tin coating 12 passes through layer
Pressure or electroplating processes deposition, layering and obtain.In this case, the thickness of tin coating 12 is equal to conducting wire overall diameter
0.5%~2%.Tin coating 12 protects conducting wire from aoxidizing and keeping its solderability feature to remain unchanged at any time.
With reference to Fig. 2, central conductive unit 1 is by straight center conductor 10a and spirally harness form winding center conducting wire
The a plurality of periphery conducting wire 10b of 10a is formed.Peripheral conducting wire 10b is formed by helical form harness and passes through along straight center conductor 10a
And develop it as the axis winding of spiral.
Attached drawing shows the embodiment of central conductive unit 1 comprising seven conducting wires, i.e. a center conductor and six
Peripheral conducting wire.
Advantageously, center conductor 10a is made of copper, because it must be the conducting wire with highest mechanical strength.It is all outer
Enclosing conducting wire 10b can be made of copper, or only some peripheral conducting wires are made of copper.
Peripheral conducting wire 10b is to form the helical form harness winding center conducting wire 10a with 15~20mm winding pitch.So
And the quantity of the conducting wire according to the size of conducting wire and for central conductive unit 1, the winding pitch of spiral can have different
Value.
This manufacturing technology of central conductive unit 1 is able to use suitable machine and carries out industry with lower production cost
Automated production.
Such mechanical performance for being configured to improve the central conductive unit 1 of the conducting wire 10 of central conductive unit.
In fact, due to such as processing required in automotive vehicles applications, production in special applications and operation is installed, only by a conducting wire
Or solid conductor made of the harness of parallel wire cannot bear a large amount of alternating bending operation of coaxial cable 100.
Wherein central conductive unit 1 is obtained the coaxial cable 100--- of the utility model using such manufacturing technology ---
It is more flexible, more resistant against in any direction bending and be easier to be compacted during the crimping of connector.
It must be noted that the central conductive unit 1 of coaxial cable according to the present utility model is on entire cable length
There is no the conducting wire of any twisting.The central conductive unit 1 of multiple wire system is manufactured using such technique, wherein periphery conducting wire 10b is logical
Cross bending rather than twisting by around center conductor 10a and be arranged.This allows to obtain compact harness and is avoided air in electricity
Presence between line.
Dielectric material 2 can be polyethylene, polyethylene foamed or polypropylene, and can have 0.8~3mm, preferably
The diameter of 1.5mm.
With reference to Fig. 1 and Fig. 3, coaxial cable 100 advantageously has there are two shielded layer: shielded layer 4 and secondary shielding layer 3.
Shielded layer 4 includes a plurality of conducting wire 40 wound in such a way that shape is webbed, and the net is for being grounded.Due to this original
Cause, shielded layer 4 are also referred to as " wire sheathing ".
Shielded layer 4 is made of one group of conducting wire 40 with suitable twisting pitch twisting.According to application, every conducting wire 40 it is total
Diameter can be 0.08mm~0.2mm.At least some conducting wires 40 of shielded layer are made of aluminum.Preferably, at least the 50% of shielded layer
Conducting wire 40 it is made of aluminum.
With reference to Fig. 3 B, some conducting wires 40 of shielded layer advantageously can be CCA type.In this case, shielded layer is led
Line 40 includes aluminium core 41, copper coating 42 and finally further includes external tin coating 43.
Cover aluminium core 41 copper coating 42 and external tin coating 43 can by depositing, pass through point of lamination or electroplating processes
Layer obtains.
The thickness of copper coating 42 is equal to the 6% of 40 overall diameter of conducting wire of shielded layer.The thickness range of external tin coating 43 is
The 0.5%~2% of 40 overall diameter of conducting wire of shielded layer.
When coaxial cable 100 is exposed in heavy load conditions, such as moist thermal condition, salt water mist or the ground of heat-flash repeatedly
Fang Shi, the external tin coating 43 being applied on the conducting wire 40 of shielded layer are necessary.The external tin coating 43 allows to keep leading
The constant resistance rate of line is constant at any time, the electrical feature without changing cable.Further, since not oxidized, the use of tin is really
Protect the excellent solderability of shielded layer 4 over time.
For example, the conducting wire 40 that overall diameter is the shielded layer of 0.13mm has a structure that
Maximum gauge=0.12mm of aluminium core 41,
Minimum thickness=0.004mm of copper coating 42,
Minimum thickness=0.001mm of external tin coating 43.
For example, shielded layer 4 is made of the net of twisting conducting wire 40.Conducting wire be grouped into every 5 conducting wires one.A total of 16 strands
It is used to make net.It is made per one of 5 (every conducting wire) diameters of the conducting wire of 0.13mm.Make the twisting section of webbed stock
Away from for 28mm.
Secondary shielding layer 3 surrounds dielectric material 2.Secondary shielding layer 3 is by with a thickness of 0.03~0.05mm aluminum matrix composite
Sheet material be made.Advantageously, secondary shielding layer 3 includes multi-layer sheet, which is located between two aluminium layers by being situated between
Polyester film composition.
The optics coverage rate high percentage of dielectric material 2 and secondary shielding layer 3 is in 90%.
Exterior insulation sheath 5 is made of unleaded anti-migration PVC.
The cable 100 of the utility model has following mechanical property:
Minimum static state bending radius is 5 times of outer diameter；With
Minimum dynamic curvature radius is 15 times of outer diameter.
Cable 100 has passed through following laboratory and has checked:
It is exposed within -3,000 hours at a temperature of+105 DEG C~-40 DEG C；With
Comply with standard the reliability of 30,000 bend cycles of ISO 14572.
Can the current embodiment to the utility model carry out various change and modification, these embodiments are in ability
In the limit of power of the technical staff in domain, both fall in the scope of the utility model under any circumstance.
Claims (11)
1. being used for the coaxial cable (100) of automobile application, comprising:
Central conductive unit (1), is used for transmission signal；
Shielded layer (4) shields the central conductive unit for being grounded comprising being set as netted a plurality of conducting wire (40)；
Dielectric material (2), setting is between the central conductive unit (1) and the shielded layer, so that central conductive unit
(1) it insulate with shielded layer (4), and
Insulating sheath (5) is arranged around the shielded layer (4)；
Wherein, at least some of these conducting wires (40) of the shielded layer (4) include aluminium core (41)；
It is characterized in that,
The center conductive unit (1) includes a plurality of conducting wire (10), wherein leading described in at least one of the center conductive unit
Line is made of copper or copper alloy.
2. coaxial cable (100) according to claim 1, which is characterized in that it is described center conductive unit (1) it is described extremely
The diameter of the conducting wire (10) of few copper or copper alloy is less than 1.2mm.
3. coaxial cable (100) according to claim 2, which is characterized in that it is described center conductive unit (1) it is described extremely
The diameter of the conducting wire (10) of few copper or copper alloy is 0.12~0.16mm.
4. coaxial cable (100) according to claim 1, which is characterized in that the described of the center conductive unit (1) is led
Line (10) includes straight center conductor (10a), and is wound in described by bending rather than twisting and spirally harness form
The a plurality of peripheral conducting wire (10b) of heart conducting wire (10a), wherein the center conductor (10a) is copper or copper alloy.
5. coaxial cable (100) according to any one of the preceding claims, which is characterized in that the center conductive unit
(1) at least one conducting wire (10) has the core (11) and tin coating (12) being made of copper or copper alloy.
6. coaxial cable (100) according to claim 5, which is characterized in that it is described center conductive unit (1) by copper
At conducting wire (10) the tin coating (12) conducting wire (10) overall diameter with a thickness of the central conductive unit 0.5%~
2%.
7. coaxial cable (100) according to claim 1, which is characterized in that the conducting wire (40) of shielded layer (4) is extremely
Few 50% includes aluminium core (41).
8. coaxial cable (100) according to claim 1, which is characterized in that the conducting wire (40) of shielded layer (4) includes
Aluminium core (41) and copper coating (42).
9. coaxial cable (100) according to claim 8, which is characterized in that the copper coating of the conducting wire of shielded layer
(42) the 7%~10% of the conducting wire overall diameter with a thickness of shielded layer (4).
10. coaxial cable (100) according to claim 8, which is characterized in that the conducting wire (40) of shielded layer (4) wraps
Include external tin coating (43).
11. coaxial cable (100) according to claim 10, which is characterized in that the external tin of the conducting wire of shielded layer
The variable thickness of coating (43) is the 0.5%~2% of conducting wire (40) overall diameter of the shielded layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT201700100571 | 2017-09-07 | ||
| IT102017000100571 | 2017-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209297775U true CN209297775U (en) | 2019-08-23 |
Family
ID=61006097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821447393.0U Active CN209297775U (en) | 2017-09-07 | 2018-09-05 | Coaxial cable for automobile application |
Country Status (7)
| Country | Link |
|---|---|
| CN (1) | CN209297775U (en) |
| BR (1) | BR202018067569U2 (en) |
| DE (1) | DE202018105020U1 (en) |
| ES (1) | ES1220045Y (en) |
| FR (1) | FR3070789B3 (en) |
| PT (1) | PT11544U (en) |
| TR (1) | TR201811908U5 (en) |
-
2018
- 2018-08-15 TR TR2018/11908U patent/TR201811908U5/en unknown
- 2018-08-24 PT PT1154418U patent/PT11544U/en unknown
- 2018-09-03 BR BR202018067569-4U patent/BR202018067569U2/en unknown
- 2018-09-03 DE DE202018105020.6U patent/DE202018105020U1/en active Active
- 2018-09-05 CN CN201821447393.0U patent/CN209297775U/en active Active
- 2018-09-05 ES ES201831346U patent/ES1220045Y/en active Active
- 2018-09-07 FR FR1871004A patent/FR3070789B3/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202018105020U1 (en) | 2018-09-28 |
| FR3070789B3 (en) | 2020-01-24 |
| PT11544U (en) | 2019-02-25 |
| TR201811908U5 (en) | 2019-03-21 |
| FR3070789A3 (en) | 2019-03-08 |
| BR202018067569U2 (en) | 2019-08-06 |
| ES1220045Y (en) | 2019-01-25 |
| ES1220045U (en) | 2018-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3394041B2 (en) | Electric cable | |
| JP2012079563A (en) | Electric wire | |
| KR20140074911A (en) | Connection method between braided shield layer of shield wire and drain wire, and connection structure of the same | |
| US9633764B2 (en) | Conducting line shield structure | |
| CN102017018A (en) | Electrical wire and method for producing same | |
| JP5928305B2 (en) | Shielded cable | |
| JP2012249506A (en) | Protection structure of flat wire | |
| US9460833B2 (en) | Conducting line shield structure | |
| WO2019193989A1 (en) | Insulated wire | |
| JP6209187B2 (en) | Twisted conductor | |
| JP7424226B2 (en) | Coaxial cable, coaxial cable manufacturing method, and cable assembly | |
| JP5794899B2 (en) | Shield braiding | |
| CN113508441B (en) | Shielded wire for communication | |
| CN209297775U (en) | Coaxial cable for automobile application | |
| JP5032405B2 (en) | Superconducting cable former, its manufacturing method and superconducting cable | |
| JP7265324B2 (en) | insulated wire, cable | |
| JP2015079665A (en) | Shield electric wire and production method of the same | |
| CN104981880B (en) | Coaxial cable | |
| JP2006164754A (en) | Shield cable | |
| JP6979796B2 (en) | Multi-core cable | |
| JP4268172B2 (en) | coaxial cable | |
| EP4297046A1 (en) | Rectangular cross-section multi-core insulated wire, and method for manufacturing same | |
| JP2023067142A (en) | Electric wire for communication | |
| KR20240016855A (en) | Electric wire and cable | |
| JP2006164753A (en) | Shield cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |