CN203826065U - Automobile-used multi-core shielding cable - Google Patents
Automobile-used multi-core shielding cable Download PDFInfo
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- CN203826065U CN203826065U CN201420090872.7U CN201420090872U CN203826065U CN 203826065 U CN203826065 U CN 203826065U CN 201420090872 U CN201420090872 U CN 201420090872U CN 203826065 U CN203826065 U CN 203826065U
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- shielding
- cable
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- shielded
- elastic filler
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Abstract
The utility model discloses an automobile-used multi-core shielding cable, which comprises at least two groups of shielding cable cores. The shielding cable core groups are located in the same line; each shielding cable core group is coated with a polytetrafluoroethylene film wrapping layer; the shielding cable core groups are extruded in the same silica gel outer sheath layer; each shielding cable core comprises a central grounding conductor and at least three shielding conductors, the shielding conductors are sequentially distributed outside the central grounding conductor, a hollow elastic filler strip is arranged in the gap between any adjacent two shielding conductors, the cross section of the hollow elastic filler strip is elliptic, and two ends of the major axis of the hollow elastic filler strip respectively abut against the central grounding conductor and the polytetrafluoroethylene film wrapping layer. As the shielding conductors are arranged among the hollow elastic filler strips, damage on double layers of electromagnetic shielding braiding layers of the shielding cable due to the acting force generated when the cable is squeezed, bent or twisted can be avoided, and the shielding performance of the cable can be ensured.
Description
Technical field
The utility model relates to technical field of electric wires and cables, relates in particular to a kind of automobile shielded multiconductor cable.
Background technology
At present, in vehicle, the shielded multiconductor cable of prior art is mainly that many shielding conductors are concentrated in a sheath, there is no earth connection, the ground connection of auto parts and components while being unfavorable for transmitting electricity, in addition, in the situation that shielding conductor is routed to such as the such moveable part of car door from vehicle body (stationary part), such as the load of bending and torsion, all can be applied on partly shielding effect line when each mechanical movement.
For above-mentioned reasons, there is following complicated problem, in forming the bundle conductor of wire sheathing, produce broken string, and its breakage develops into and causes the resistance of electro-magnetic screen layer to increase (conductance is low), thus destroyed shielding conductor pass through characteristic or shielding character.
Utility model content
In order to solve the technical problem existing in background technology; the utility model proposes a kind of automobile shielded multiconductor cable; can either be grounded protection; can improve its shielding properties again; even when extruding, bending or number of torsions increase; its shielding properties is still good, has extended the useful life of cable.
A kind of automobile shielded multiconductor cable the utility model proposes, comprise that at least two group screens cover cable core, each group screen covers cable core and is all located along the same line, at each group screen, cover cable core and be all coated polytetrafluoroethylene film lapping layer outward, and each group screen covers cable core and is all extruded in same silica gel external sheath layer, shielding cable core comprises a centre-point earth conductor and at least three shielded conductors, wherein centre-point earth conductor consists of center ground wire and the insulating barrier being coated on outside center ground wire, shielded conductor is by conductor wire core and be coated on successively the insulating barrier outside conductor wire core, interior electromagnetic shielding braid, outer electromagnetic shielding braid and silicon rubber inner restrictive coating form, shielded conductor is evenly arranged in centre-point earth conductor outside successively, between two shielded conductors of arbitrary neighborhood, space is provided with hollow elastic filler bar, the cross section of hollow elastic filler bar is oval, the major axis two ends of hollow elastic filler bar lean with centre-point earth conductor and polytetrafluoroethylene film lapping layer respectively.
Preferably, the hollow area sectional area of hollow elastic filler bar accounts for 50～80% of its excircle sectional area.
Preferably, each group screen covers the annular hollow out that is equipped with a circle correspondence in the silicon rubber external sheath layer outside cable core.
Preferably, annular hollow out is a plurality of tri-angle-holed in silicon rubber external sheath layer of being distributed on.
Preferably, interior electromagnetic shielding braid, outer electromagnetic shielding braid are tincopper fuse wire braided armor.Even interior electromagnetic shielding braid or outside the braiding copper wire of electromagnetic shielding braid while producing fracture, also can compensate by the braiding copper wire of outer electromagnetic shielding braid or interior electromagnetic shielding braid by the part of defect, even if cable is when extruding, bending or number of torsions increase, its shielding properties is still good.
Preferably, the silicone rubber jacket material that silicon rubber inner restrictive coating, silicon rubber external sheath layer adopt, comprise following weight portion composition: polyvinyl chloride silicon rubber: 80～100 parts, silicon dioxide: 10～30 parts, white carbon black filler: 20～40 parts, silicone lubricant: 10～15 parts, silane coupler: 1～5 part, fire retardant: 1～5 part.The polyvinyl chloride silicon rubber by employing with high mechanical properties, high insulation resistance property is base rubber, in base rubber, add silicon dioxide, white carbon black filler, improved the antiwear characteristic of silicone rubber jacket material, in base rubber, add silicone lubricant, silicone lubricant impels white carbon black filler, silicon dioxide to combine with base rubber, has improved the resistance to compression properties of rubber sheath material.
Preferably, the silicone rubber jacket material that silicon rubber inner restrictive coating, silicon rubber external sheath layer adopt, comprise following weight portion composition: polyvinyl chloride silicon rubber: 88～95 parts, silicon dioxide: 15～25 parts, white carbon black filler: 25～35 parts, silicone lubricant: 12～13 parts, silane coupler: 3～4 parts, fire retardant: 2～3 parts.
The utility model is arranged on shielded conductor between hollow elastic filler bar, when cable be squeezed, crooked or while reversing, hollow elastic filler bar is because boring makes cable produce corresponding flat, shielded conductor can misplace in cable like this, the active force producing when avoiding cable extruding, bending or reversing destroys the double-layer electric magnetic screen braid of shielded type cable, has guaranteed the shielding properties of cable; In silicon rubber external sheath layer, be provided with each group screen simultaneously and cover the annular hollow out that cable core is corresponding, avoid that cable is squeezed, power crooked or that produce while reversing is destroyed silicon rubber external sheath layer, extended the useful life of cable.The utility model is realized the grounding function of automobile shielded multiconductor cable, and the zero line of centre-point earth conductor and power line fetches mutually realizes its ground protection function; Electromagnetic shielding braid, outer electromagnetic shielding braid in adopting, cable shield performance is strengthened, and has avoided the interference producing between interference that shielded conductor produces to external world and shielded conductor; Double-deck electromagnetic shielding braid has reduced the probability of the fracture of braided wire simultaneously, has greatly increased its useful life.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of shielded multiconductor cable for a kind of automobile that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the cross section structure schematic diagram of shielded multiconductor cable for a kind of automobile that the utility model proposes.
With reference to Fig. 1, in one embodiment, a kind of automobile shielded multiconductor cable the utility model proposes, comprise that two group screens cover cable core 1, at each group screen, cover the outer all coated polytetrafluoroethylene film lapping layers 2 of cable core 1, and each group screen covers cable core 1 and is all extruded in same silica gel external sheath layer 3, shielding cable core 1 comprises a centre-point earth conductor 11 and four shielded conductors 12, wherein centre-point earth conductor 11 consists of center ground wire 111 and the insulating barrier 112 being coated on outside center ground wire 111, shielded conductor 12 is by conductor wire core 121 and be coated on successively the insulating barrier 122 outside conductor wire core 121, interior electromagnetic shielding braid 123, outer electromagnetic shielding braid 124 and silicon rubber inner restrictive coating 125 form, shielded conductor 12 is evenly arranged in centre-point earth conductor 11 outsides successively, between two shielded conductors 12 of arbitrary neighborhood, space is provided with hollow elastic filler bar 4, the hollow area sectional area of hollow elastic filler bar 4 accounts for 70% of its excircle sectional area, the cross section of hollow elastic filler bar 4 is oval, the major axis two ends of hollow elastic filler bar 4 lean with centre-point earth conductor 11 and polytetrafluoroethylene film lapping layer 2 respectively.
Wherein, each group screen covers the annular hollow out that is equipped with a circle correspondence in the silicon rubber external sheath layer 3 outside cable core 1, and annular hollow out is a plurality of tri-angle-holed 5 in silicon rubber external sheath layers 3 that are distributed on.
Wherein, interior electromagnetic shielding braid 123, outer electromagnetic shielding braid 124 are tincopper fuse wire braided armor.Even interior electromagnetic shielding braid 123 or outside the braiding copper wire of electromagnetic shielding braid 124 while producing fracture, also can compensate by the braiding copper wire of outer electromagnetic shielding braid 124 or interior electromagnetic shielding braid 123 by the part of defect, even if cable is when extruding, bending or number of torsions increase, its shielding properties is still good.
Wherein, the silicone rubber jacket material that silicon rubber inner restrictive coating 125, silicon rubber external sheath layer 3 adopt, comprises following weight portion composition: polyvinyl chloride silicon rubber: 95 parts, silicon dioxide: 25 parts, white carbon black filler: 35 parts, silicone lubricant: 12 parts, silane coupler: 3 parts, fire retardant: 2 parts.The polyvinyl chloride silicon rubber by employing with high mechanical properties, high insulation resistance property is base rubber, in base rubber, add silicon dioxide, white carbon black filler, improved the antiwear characteristic of silicone rubber jacket material, in base rubber, add silicone lubricant, silicone lubricant impels white carbon black filler, silicon dioxide to combine with base rubber, has improved the resistance to compression properties of rubber sheath material.
In the present embodiment, shielded conductor 12 is arranged between hollow elastic filler bar 4, when cable be squeezed, crooked or while reversing, hollow elastic filler bar 4 is because boring makes cable produce corresponding flat, shielded conductor 12 can misplace in cable like this, the active force producing when avoiding cable extruding, bending or reversing destroys the double-layer electric magnetic screen braid of shielded type cable 12, has guaranteed the shielding properties of cable; In silicon rubber external sheath layer 3, be provided with each group screen simultaneously and cover the annular hollow out that cable core is corresponding, avoid that cable is squeezed, power crooked or that produce while reversing is destroyed silicon rubber external sheath layer 3, extended the useful life of cable.The present embodiment is realized the grounding function of automobile shielded multiconductor cable, and the zero line of centre-point earth conductor 11 and power line fetches mutually realizes its ground protection function; Electromagnetic shielding braid 123, outer electromagnetic shielding braid 124 in adopting, cable shield performance is strengthened, and has avoided the interference producing between interference that shielded conductor produces to external world and shielded conductor; Double-deck electromagnetic shielding braid has reduced the probability of the fracture of braided wire simultaneously, has greatly increased its useful life.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection range of the present utility model.
Claims (5)
1. an automobile shielded multiconductor cable, it is characterized in that, comprise that at least two group screens cover cable core (1), each group screen covers cable core (1) and is all located along the same line, outside covering cable core (1), each group screen is all coated polytetrafluoroethylene film lapping layer (2), and each group screen covers cable core (1) and is all extruded in same silica gel external sheath layer (3), shielding cable core (1) comprises a centre-point earth conductor (11) and at least three shielded conductors (12), wherein centre-point earth conductor (11) is by center ground wire (111) be coated on the outer insulating barrier (112) of center ground wire (111) and form, shielded conductor (12) is by conductor wire core (121) and be coated on successively the outer insulating barrier (122) of conductor wire core (121), interior electromagnetic shielding braid (123), outer electromagnetic shielding braid (124) and silicon rubber inner restrictive coating (125) form, shielded conductor (12) is evenly arranged in centre-point earth conductor (11) outside successively, between two shielded conductors (12) of arbitrary neighborhood, space is provided with hollow elastic filler bar (4), the cross section of hollow elastic filler bar (4) is oval, the major axis two ends of hollow elastic filler bar (4) lean with centre-point earth conductor (11) and polytetrafluoroethylene film lapping layer (2) respectively.
2. automobile shielded multiconductor cable according to claim 1, is characterized in that, the hollow area sectional area of hollow elastic filler bar (4) accounts for 50～80% of its excircle sectional area.
3. automobile shielded multiconductor cable according to claim 1, is characterized in that, each group screen covers the annular hollow out that is equipped with a circle correspondence in the silicon rubber external sheath layer (3) outside cable core.
4. automobile shielded multiconductor cable according to claim 3, is characterized in that, annular hollow out is a plurality of tri-angle-holed (5) that are distributed in silicon rubber external sheath layer (3).
5. automobile shielded multiconductor cable according to claim 1, is characterized in that, interior electromagnetic shielding braid (123), outer electromagnetic shielding braid (124) are tincopper fuse wire braided armor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090872.7U CN203826065U (en) | 2014-03-01 | 2014-03-01 | Automobile-used multi-core shielding cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090872.7U CN203826065U (en) | 2014-03-01 | 2014-03-01 | Automobile-used multi-core shielding cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826065U true CN203826065U (en) | 2014-09-10 |
Family
ID=51481539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090872.7U Expired - Fee Related CN203826065U (en) | 2014-03-01 | 2014-03-01 | Automobile-used multi-core shielding cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903715A (en) * | 2014-03-01 | 2014-07-02 | 安徽海容电缆有限公司 | Multi-core shielding cable for automobiles |
-
2014
- 2014-03-01 CN CN201420090872.7U patent/CN203826065U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903715A (en) * | 2014-03-01 | 2014-07-02 | 安徽海容电缆有限公司 | Multi-core shielding cable for automobiles |
| CN103903715B (en) * | 2014-03-01 | 2016-08-03 | 安徽海容电缆有限公司 | A kind of automobile shielded multiconductor cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20170301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |