CN102456440A - High-temperature-resistant digital cable for automotive bus - Google Patents
High-temperature-resistant digital cable for automotive bus Download PDFInfo
- Publication number
- CN102456440A CN102456440A CN2010105298540A CN201010529854A CN102456440A CN 102456440 A CN102456440 A CN 102456440A CN 2010105298540 A CN2010105298540 A CN 2010105298540A CN 201010529854 A CN201010529854 A CN 201010529854A CN 102456440 A CN102456440 A CN 102456440A
- Authority
- CN
- China
- Prior art keywords
- core
- cable
- data transmission
- digital data
- spiral
- 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
Links
Images
Classifications
-
- 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 high-temperature-resistant digital cable for an automotive bus, comprising two digital signal transmission cores disposed in parallel, wherein filling cores are symmetrically disposed at the both sides of each digital signal transmission core; the digital signal transmission cores and the filling cores compose a compound transmission core; a spiral lapped shielding layer is disposed outside the compound transmission core; at least one interference signal leading-out core parallel to the compound transmission core is disposed outside the spiral lapped shielding layer; a metal wire weaved shielding layer is disposed outside the spiral lapped shielding layer, and a cable jacket is disposed outside the metal wire weaved shielding layer; the digital signal transmission cores are formed by wrapping an insulating layer outside a multi-strand copper wire bundle respectively; and the interference signal leading-out core is composed of the multi-strand copper wire bundle. The high-temperature-resistant digital cable for an automotive bus disclosed by the invention is good in interference resistance, capable of achieving a heat-resisting class of 150 DEG C, as well as good in flame resistance, wear resistance and oil resistance.
Description
Technical field
The present invention relates to a kind of automobile bus and use high temperature resistant digital cable; This cable has two parallel digital data transmission cores that are provided with; The digital data transmission core constitutes the composite transmission line core with the filling core; The composite transmission line core is provided with the wrapped formula screen of spiral outward, and this screen is provided with interference signal outward and derives core, its outer cable cover(ing) that is provided with.
Background technology
Along with people's improves the requirement of vehicle safety, comfort type, and each unit and amount of equipment of controlling automatically constantly increases in the automobile, and its performance requirement is also increasingly high.In automobile electronic system, there is a large amount of automobile electronic control units, for example: automobile ABS anti-lock braking system, automotive theft proof system, and various Monitoring and Controlling electrical appliances unit in a series of automobile engine.Automobile bus cable wherein is mainly used in the electronic signal of each ECU in the automobile and the transmission of automatically controlled information.Chinese patent 200420022074.7 discloses a kind of automobile bus control system; Its main feature is; Described automobile bus control system comprises control box behind a master control box, preceding control box and, is connected through the CAN bus between described master control box, preceding control box and the back control box.Adopt the automobile bus control system of this kind structure, make and use the automobile of this bus system obviously to reduce the rat tail from the automotive front to the rear portion; Compare with a line system system simultaneously, this system has obviously reduced the quantity of control box, has so not only reduced the possibility that control box breaks down, and makes the mounting arrangements of control box very simple.The automobile bus network be connected to satisfy between the automobile electronic control unit various electronic signals and automatically controlled information accurately, be delivered to each unit, the transmission cable that design meets the automobile bus system-specific has great significance.Because the environment of running car engineering is abominable, present automobile bus cable can't satisfy heat-resisting degree height, anti-wear performance is good, oil resistant and fire-retardant requirement.For this reason, need to propose a kind of new automobile bus and use high temperature resistant digital cable.
Summary of the invention
The object of the present invention is to provide a kind of automobile bus to use high temperature resistant digital cable; This cable has two parallel digital data transmission cores that are provided with; The digital data transmission core constitutes the composite transmission line core with the filling core; The composite transmission line core is provided with the wrapped formula screen of spiral outward, and composite transmission line core and interference signal derive core cable cover(ing) is set outward.Screening effectiveness of the present invention is less than or equal to 225 milliohm/rice, good in anti-interference performance, and thermal endurance class is high, can reach 150 ℃ of thermal endurance classs; Also have good flame retardancy, anti-wear performance and oil resistance.
The objective of the invention is to be realized by following technical proposals: a kind of automobile bus is used high temperature resistant digital cable; Two parallel digital data transmission cores that are provided with are arranged; The bilateral symmetry of said digital data transmission core is provided with the filling core; Said digital data transmission core and said filling core constitute the composite transmission line core, and said composite transmission line core is provided with the wrapped formula screen of spiral outward, and the wrapped formula screen of this spiral is provided with at least one outward and derives core with the parallel interference signal of said composite transmission line core; The wrapped formula screen of said spiral is provided with the metal wire knitted screen outward, and this metal wire knitted screen is provided with cable cover(ing) outward; Said digital data transmission core is made up of multiply copper cash bundle outsourcing insulation; Said interference signal derives core and is made up of multiply copper cash bundle.
The present invention compared with prior art has following advantage:
1, because the present invention is provided with the wrapped formula screen of spiral outside the composite transmission line core, outside this screen, be provided with interference signal again and derive core and metal wire knitted screen, guarantee that transmission signals does not receive extraneous interference, therefore, good in anti-interference performance.
2, because digital data transmission core of the present invention has adopted temperature-resistant insulation layer outward; The composite transmission line core is provided with the high temperature-resistant cable sheath outward; Can reach 150 ℃ of thermal endurance classs, be particularly suitable for being used in the engineering vehicle of working under automobile engine position and the various harsh conditions.
3, the good material of anti-wear performance that adopted of the present invention has improved anti-wear performance and oil resistance.
4, the present invention has good flame retardancy, can reach ISO14572 and ISO6722 standard-required.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1, structural representation of the present invention
Fig. 2, an alternative embodiment of the invention sketch map
Embodiment
Embodiment one:
(accompanying drawing only shows cross section of the present invention referring to Fig. 1; Vertical outside drawing of the present invention omits); Automobile bus of the present invention is used high temperature resistant digital cable; Two parallel digital data transmission cores 1 that are provided with are arranged, and the bilateral symmetry of said digital data transmission core is provided with fills core 2, and said digital data transmission core and said filling core constitute the composite transmission line core; Said composite transmission line core is provided with the wrapped formula screen 3 of spiral outward; The wrapped formula screen of said spiral is provided with at least one outward and derives core 4 with the parallel interference signal of composite transmission line core, and the wrapped formula screen of said spiral is provided with metal wire knitted screen 5 outward, and said metal wire knitted screen is provided with cable cover(ing) 6 outward; Said digital data transmission core is made up of multiply copper cash bundle outsourcing insulation; Said interference signal derives core and is made up of multiply copper cash bundle.Length of the present invention can be designed to 50 meters～200 meters, also can process, be designed to longer size according to production and processing or the needs that use.
In the present embodiment; The bilateral symmetry of said digital data transmission core is provided with the filling core; Filling core and digital data transmission core is symmetrical set each other; The digital data transmission core constitutes the composite transmission line core with the filling core, and the cross section of this composite transmission line core is a cross flower shape; For transmission performance and the overall performance that improves cable, two digital data transmission cores and two filling cores twist together, and the line of said filling core directly is the 45%-65% in digital data transmission core line footpath.Said digital data transmission core is made up of the multiply copper cash bundle and the outer field insulating barrier 11 of core; Through this insulating barrier and the support of filling core; Make two digital data transmission cores keep parallel be provided with (two the digital data transmission core is all kept at a distance equal) on all line segments, be used for guaranteeing impedance parameter of the present invention.The described line of present embodiment directly is meant the largest cross-sectional sized of core, if the circular section, line directly is exactly a diameter, if oval cross section, line directly is exactly the size of long axis direction, by that analogy.
In the world, the data bus cable of developed country can only be accomplished 125 degree thermal endurance classs.In order to improve heat-resisting ability of the present invention, the maximum operating temperature of the insulating barrier in the digital data transmission core (normal operation) is 150 ℃, and the maximum operating temperature of filling core (normal operation) is 150 ℃; The maximum operating temperature of cable cover(ing) is 150 ℃.
In the present embodiment; The composite transmission line core is provided with the wrapped formula screen of spiral outward, and the wrapped formula screen of said spiral is provided with the metal wire knitted screen outward and realizes according to following technology: after two digital data transmission cores and two filling cores are twisted into cable, adopt conventional wrapped plant equipment; According to the wrapped mode of spiral; In the mask tape of the overlapping wrapped containing metal composition of its outer surface, Duplication is 15%-25%, forms a transmission cable that has screen; An interference signal is set outside the wrapped formula screen of spiral then derives core, this interference signal derives core and this transmission cable is isometric and it is parallel to keep; Outside interference signal derives core and transmission cable, knit out the metal wire knitted screen with braiding machine again, interference signal derives core and the digital data transmission core all is in the metal wire knitted screen.In the present embodiment, interference signal derives core can be provided with one, also can be provided with many.In the present embodiment, the material of the wrapped formula screen of said spiral is a kind of in aluminium-plastic tape, the compound copper-plastics band.In the use of reality, interference signal derives core and screen and is electrically connected with ground connection (bonding) terminal on the automobile.
In the present embodiment, the outer field insulating barrier in the said digital data transmission core adopts foaming and the material that does not foam compound to constitute, and foam process adopts physical blowing and chemical foaming technology; In the present embodiment, also can form by solid insulating barrier.In the present embodiment, cable cover(ing) adopts not expanded material formation.
In the present embodiment; For rounding property and the stability of structure that improves impedance parameter of the present invention, cable; Article two, digital data transmission core and two filling cores twist together; Twisting pitch is 15-25 a times of a digital data transmission wire core diameter, and the diameter of said filling core is the 45%-65% of digital data transmission wire core diameter; Article two, the centre distance between the digital data transmission core is 1 times of a digital data transmission wire core diameter; Digital data transmission wire core diameter can choose in 2.23-3.50 millimeter scope.
In the automobile bus control system, the requirement of wave impedance is 120 ohm.Signal is in transmission course, and cable need guarantee impedance matching, and impedance matching is meant that load impedance (vehicle data bus) and driving source (source of data/address bus) internal driving are adaptive mutually, obtains a kind of operating state of maximum power output; When impedance matching was bad, signal can't continue to keep due stable and uniform transmission, and data controlling signal decay and reflection are big; So can't avoid interference spurious signal; Thereby produce the control signal of misoperation, influence normal transfer of data, influence the normal use of equipment.Therefore, the practical impedance of cable is more near 120 ohm, and transmission performance is good more.Automobile bus in the present embodiment is with high temperature resistant digital cable parameter such as following table:
In the last table: PF/M is ripple method/rice.
Embodiment two:
Automobile bus in the present embodiment is used high temperature resistant digital cable; It is the improvement on embodiment one basis; Be not repeated in this description one by one at this with technology contents similar among the embodiment one, disclosed technology contents among the embodiment one also is to be understood that to be the disclosed technology contents of present embodiment.
In order to improve heat-resisting ability of the present invention, the maximum operating temperature of the insulating barrier in the digital data transmission core in the present embodiment (normal operation) is 150 ℃, and the material of insulating barrier is crosslinked polyolefin material (150 ℃ of XLPO; 150 ℃ of cross-linked polyolefins), (perfluoroethylene-propylene FEP is commonly called as F46 to fluoroplastics; Ethylene-tetrafluoroethylene copolymer ETFE is commonly called as F40), elastomeric insulating material (TPE-E; Thermoplastics type's polyester elastomeric material) a kind of in.The maximum operating temperature of said filling core (normal operation) is 150 ℃; The line of said filling core directly is the 45%-65% in digital data transmission core line footpath.
Embodiment three:
Automobile bus in the present embodiment is used high temperature resistant digital cable, is the improvement on embodiment two bases.
In order to improve heat-resisting ability of the present invention, the maximum operating temperature of the filling core in the present embodiment is 150 ℃; The line of said filling core directly is the 45%-65% in digital data transmission core line footpath; The material of said filling core is low-loss cross-linking radiation TPO material (150 ℃ of XLPO; 150 ℃ of cross-linked polyolefins), (perfluoroethylene-propylene FEP is commonly called as F46 to fluoroplastics; Ethylene-tetrafluoroethylene copolymer ETFE is commonly called as F40), elastomeric insulating material (TPE-E; Thermoplastics type's polyester elastomeric material) a kind of in.
Referring to Fig. 2, in the present embodiment,, fill core 21 and be designed to irregular elliptical shape for transmission performance and the overall performance that improves cable.
Embodiment four:
Automobile bus in the present embodiment is used high temperature resistant digital cable, is the improvement on embodiment three bases.
In order to improve antijamming capability of the present invention, the material of the wrapped formula screen of the spiral in the present embodiment is a kind of in aluminium-plastic tape, the compound copper-plastics band.
Embodiment five:
Automobile bus in the present embodiment is used high temperature resistant digital cable, is the improvement on embodiment four bases.
In order to improve heat-resisting ability of the present invention, anti-wear performance and oil resistance, the maximum operating temperature of the cable cover(ing) in the present embodiment is 150 ℃, and the material of said cable cover(ing) is a kind of in crosslinked polyolefin material, fluoroplastics, the elastomeric insulating material.
Embodiment six:
Automobile bus in the present embodiment is used high temperature resistant digital cable, is the improvement on embodiment five bases.
In the present embodiment, in order to improve performance of the present invention and life-span, the copper line surface of the multiply copper cash bundle in the said digital data transmission core is provided with antioxidation coating, and described antioxidation coating is a kind of in tin coating, the silver coating.The copper line surface that said interference signal derives the multiply copper cash bundle in the core is provided with antioxidation coating, and described antioxidation coating is a kind of in tin coating, the silver coating.Multiply copper cash bundle is by stranded the forming of naked soft circular copper wire, and its structure is 18AWG wire gauge conductor (cross-sectional area of conductor 0.80mm
2) or 20AWG wire gauge (cross-sectional area of conductor 0.50mm
2) conductor.
Claims (7)
1. an automobile bus is used high temperature resistant digital cable; It is characterized in that: two parallel digital data transmission cores that are provided with are arranged; The bilateral symmetry of said digital data transmission core is provided with the filling core; Said digital data transmission core and said filling core constitute the composite transmission line core, and said composite transmission line core is provided with the wrapped formula screen of spiral outward, and the wrapped formula screen of said spiral is provided with at least one outward and derives core with the parallel interference signal of said composite transmission line core; The wrapped formula screen of said spiral is provided with the metal wire knitted screen outward, and said metal wire knitted screen is provided with cable cover(ing) outward; Said digital data transmission core is made up of multiply copper cash bundle outsourcing insulation; Said interference signal derives core and is made up of multiply copper cash bundle.
2. automobile bus according to claim 1 is used high temperature resistant digital cable; It is characterized in that: the maximum operating temperature of the insulating barrier in the said digital data transmission core is 150 ℃, and the material of said insulating barrier is a kind of in crosslinked polyolefin material, fluoroplastics, the elastomeric insulating material.
3. automobile bus according to claim 2 is used high temperature resistant digital cable, it is characterized in that: the maximum operating temperature of said filling core is 150 ℃; The line of said filling core directly is the 45%-65% in digital data transmission core line footpath; The material of said filling core is a kind of in low-loss cross-linking radiation TPO material, fluoroplastics, the elastomeric insulating material.
4. use high temperature resistant digital cable according to claim 1 or 3 described automobile bus, it is characterized in that: the material of the wrapped formula screen of said spiral is a kind of in aluminium-plastic tape, the compound copper-plastics band.
5. automobile bus according to claim 4 is used high temperature resistant digital cable; It is characterized in that: the maximum operating temperature of said cable cover(ing) is 150 ℃, and the material of said cable cover(ing) is a kind of in crosslinked polyolefin material, fluoroplastics, the elastomeric insulating material.
6. automobile bus according to claim 5 is used high temperature resistant digital cable, it is characterized in that: the copper line surface of the multiply copper cash bundle in the said digital data transmission core is provided with antioxidation coating, and described antioxidation coating is a kind of in tin coating, the silver coating.
7. automobile bus according to claim 6 is used high temperature resistant digital cable, it is characterized in that: the copper line surface that said interference signal derives the multiply copper cash bundle in the core is provided with antioxidation coating, and described antioxidation coating is a kind of in tin coating, the silver coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105298540A CN102456440A (en) | 2010-11-03 | 2010-11-03 | High-temperature-resistant digital cable for automotive bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105298540A CN102456440A (en) | 2010-11-03 | 2010-11-03 | High-temperature-resistant digital cable for automotive bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102456440A true CN102456440A (en) | 2012-05-16 |
Family
ID=46039520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105298540A Pending CN102456440A (en) | 2010-11-03 | 2010-11-03 | High-temperature-resistant digital cable for automotive bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102456440A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680716A (en) * | 2012-09-21 | 2014-03-26 | 北京斯普乐电线电缆有限公司 | High temperature-resistant cable for thermoplastic type car |
| CN103778998A (en) * | 2012-11-16 | 2014-05-07 | 北京斯普乐电线电缆有限公司 | Shielded cable for automotive engine |
| CN107464601A (en) * | 2017-07-25 | 2017-12-12 | 福泰克（连云港）电子有限公司 | Heat-resisting cold-resistant Vehicular video line and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201281982Y (en) * | 2008-10-20 | 2009-07-29 | 南京全信传输科技股份有限公司 | Data bus cable |
| CN201315181Y (en) * | 2008-12-19 | 2009-09-23 | 芜湖航天特种缆业股份有限公司 | Fluoroplastic insulating vehicle-mounted measurement and control composite cable |
| CN201522889U (en) * | 2009-11-26 | 2010-07-07 | 天津亿鑫通科技股份有限公司 | Data bus cable |
-
2010
- 2010-11-03 CN CN2010105298540A patent/CN102456440A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201281982Y (en) * | 2008-10-20 | 2009-07-29 | 南京全信传输科技股份有限公司 | Data bus cable |
| CN201315181Y (en) * | 2008-12-19 | 2009-09-23 | 芜湖航天特种缆业股份有限公司 | Fluoroplastic insulating vehicle-mounted measurement and control composite cable |
| CN201522889U (en) * | 2009-11-26 | 2010-07-07 | 天津亿鑫通科技股份有限公司 | Data bus cable |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680716A (en) * | 2012-09-21 | 2014-03-26 | 北京斯普乐电线电缆有限公司 | High temperature-resistant cable for thermoplastic type car |
| CN103680716B (en) * | 2012-09-21 | 2015-09-02 | 北京斯普乐电线电缆有限公司 | High temperature-resistancable cable for thermoplastic type car |
| CN103778998A (en) * | 2012-11-16 | 2014-05-07 | 北京斯普乐电线电缆有限公司 | Shielded cable for automotive engine |
| CN103778998B (en) * | 2012-11-16 | 2015-06-03 | 北京斯普乐电线电缆有限公司 | Shielded cable for automotive engine |
| CN107464601A (en) * | 2017-07-25 | 2017-12-12 | 福泰克（连云港）电子有限公司 | Heat-resisting cold-resistant Vehicular video line and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20140262424A1 (en) | Shielded twisted pair cable | |
| CN202549405U (en) | Cable for high-temperature resistant computer | |
| CN201893176U (en) | Digital cable for automobile bus | |
| CN102456440A (en) | High-temperature-resistant digital cable for automotive bus | |
| CN201549247U (en) | Audio transmission and control cable used for automobile sound | |
| CN203444819U (en) | Anti-interference environment-friendly computer cable | |
| CN202650689U (en) | Power cable with functions of shielding and chemical resistance | |
| CN202549475U (en) | Metallic shielded power cable | |
| CN102332330B (en) | Power and control combined cable for rail transit vehicle | |
| CN202258420U (en) | High-speed signal transmission cable | |
| CN202662344U (en) | Computer cable for intrinsically safe circuit | |
| CN210956275U (en) | High-speed data transmission cable for automobile | |
| CN202549400U (en) | High temperature resistance detection instrument cable for intrinsically safe system | |
| CN103778998B (en) | Shielded cable for automotive engine | |
| CN2922074Y (en) | Horizontal paired cable with new shielding structure for super seven class data communication | |
| CN202093864U (en) | Power control combined cable used for track traffic vehicle | |
| CN202662319U (en) | Control cable for investment | |
| CN202549413U (en) | Halogen-free low-smoke flame-retardant signal cable for detection, control and computer | |
| CN202487281U (en) | Electric cable for 3G data communication | |
| CN105719734A (en) | High-temperature resisting type thin-wall insulation shielding type locomotive vehicle cable | |
| CN202871343U (en) | Shielded cable for automotive engine | |
| CN202662345U (en) | Shield cable for digital touring detection device | |
| CN212724760U (en) | Low-smoke zero-halogen shielded data cable | |
| CN202662343U (en) | Computer shielding cable for intrinsically safe circuit | |
| CN215770672U (en) | Speed identification signal cable for automobile VCU |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120516 |