CN202126867U - Flame retarding shielded cable for computer - Google Patents
Flame retarding shielded cable for computer Download PDFInfo
- Publication number
- CN202126867U CN202126867U CN2011201488809U CN201120148880U CN202126867U CN 202126867 U CN202126867 U CN 202126867U CN 2011201488809 U CN2011201488809 U CN 2011201488809U CN 201120148880 U CN201120148880 U CN 201120148880U CN 202126867 U CN202126867 U CN 202126867U
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- cable
- shield
- total
- conductor groups
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Abstract
The utility model discloses a flame retarding shielded cable for a computer, comprising a three conductor groups which respectively consist of two inter-twisted conductors wrapped externally with the insulating layer. A taped covering and a branch shielding layer are wrapped successively outside the three conductor groups respectively. Ground wires are arranged among the three conductor groups wrapped with the branch shielding layer. The external side is successively wrapped with total shielding layers. A plurality of fillers and drain wires are arranged between the total and branch shielding layers. The drain wires are contacted with the total and branch shielding layers. The total shielding layer is wrapped successively with an internal jacket layer, an armor layer and an external jacket layer outside. The bend radius is not smaller than 13 times of the outer diameter for the cable. Ground wires are arranged among conductor groups, thereby effectively preventing short circuit due to mutual contact of the conductors of the cable and improving the branch shielding effect as well. In addition, the drain wires contacted with the total and branch shielding layers are arranged to effectively improve the total shielding effect of the cable and enhance the safety performance to a great extent.
Description
Technical field:
The utility model relates to the computer cable field, relates in particular to a kind of flame retardant type computer shield cable.
Background technology:
Cable is in order to transmit electricity (magnetic) ability, information and the wire product of realizing the electromagnetic energy conversion.Normally by the cable of several or at least two every group stranded similar ropes that form of several groups of leads, mutually insulated between every group of lead, and often be twisted into round a center, whole outside is surrounded by the cover layer of high-insulation.Electric wire comprises that mainly bare wire, electromagnetic wire and electrical equipment and electrical are with insulated electric conductor, power cable, telecommunication cable and optical cable.
In order to reduce crosstalking each other and external disturbance between the loop, computer cable all need adopt shielding construction usually.The shielding requirements of cable is based on different occasions and adopts respectively: total shielding, pair twist combination that pair twist combination shielding, pair twist are formed cable shield methods such as the total shielding in back.
The computer cable of previous flame-retarding characteristic; Structure is compact inadequately, intensity is lower; Shield effectiveness is bad, and the utility model is to be applicable to that industries such as ac rated voltage 300/500V electric power, metallurgy, petrochemical industry are that main automatic control system, computer distributed control system, automation control system made control line and detecting instrument instrument computer cable with the electronic computer.Between the conductor group, be provided with earth connection, protective earthing:, prevented that effectively cable conductor is in contact with one another and short circuit phenomenon occurs and improved simultaneously and divide the shielding effect for signal voltage provides a stable zero potential reference point; Be provided with the drain wire that contacts simultaneously with total, sub-shield in addition, improved the total shield effectiveness of cable effectively, security performance promotes significantly.
The utility model content:
To the prior art problem, the purpose of the utility model provides a kind of flame retardant type computer shield cable, and compact conformation makes shield effectiveness improve simultaneously.
The technical scheme of the utility model is following:
Flame retardant type computer shield cable; Comprise three conductor groups; Described three conductor groups are enclosed with by two outsides respectively that the conductor of insulating barrier is each other stranded to be constituted; It is characterized in that: described three conductor groups outside is enclosed with lapping layer, sub-shield respectively successively, is provided with earth connection between three conductor groups after the parcel sub-shield; The outside is enclosed with total screen successively, is provided with several core, drain wires filled out between described total screen and the sub-shield, and described drain wire is sectional area 0.1-0.8mm
2Thin copper wire, described drain wire contacts with total screen, sub-shield, and described total screen is enclosed with inner restrictive coating, armour, external sheath layer outward successively, and cable permission bending radius is not less than 13 times of external diameter.
Described flame retardant type computer shield cable; It is characterized in that: described sub-shield adopts the copper wire braiding to constitute; Described total screen adopts total screen to adopt the overlapping wrapped mode of aluminium-plastic tape that is not less than 0.06mm; Aluminium-plastic tape is by being base material with the plastic film, and single face applies aluminium powder and processes, and aluminium is towards interior during coating.
Described flame retardant type computer shield cable is characterized in that: described inside and outside restrictive coating material adopts flame-proof polyvinyl chloride.
The utility model has the advantages that:
The utility model is provided with earth connection between the conductor group, prevented that effectively cable conductor is in contact with one another and short circuit phenomenon occurs and improved simultaneously and divide the shielding effect; Be provided with the drain wire that contacts simultaneously with total, sub-shield in addition, improved the total shield effectiveness of cable effectively, security performance promotes significantly.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
Flame retardant type computer shield cable; Comprise three conductor groups 1; Three conductor groups 1 are enclosed with by two outsides respectively that the conductor 3 of insulating barrier 2 is stranded each other to be constituted; Three conductor group 1 outsides are enclosed with lapping layer 4, sub-shield 5 respectively successively, are provided with earth connection 6 between three conductor groups 1 after the parcel sub-shield 5; The outside is enclosed with total screen 7 successively, is provided with several core 8, drain wires 9 filled out between total screen 7 and the sub-shield 5, and drain wire 9 is sectional area 0.1-0.8mm
2Thin copper wire; Drain wire 9 contacts with total screen 7, sub-shield 5, total screen 7 outer inner restrictive coating 10, armour 11, external sheath layers 12 of being enclosed with successively, and cable permission bending radius is not less than 13 times of external diameter; Sub-shield 5 adopts the copper wire braiding to constitute; Total screen 7 adopts the overlapping wrapped mode of aluminium-plastic tape that is not less than 0.06mm, and aluminium-plastic tape is by being base material with the plastic film, and single face applies aluminium powder and processes; Aluminium is towards interior during coating, and inside and outside restrictive coating 10,12 materials adopt flame-proof polyvinyl chloride.
Claims (2)
1. flame retardant type computer shield cable; Comprise three conductor groups; Described three conductor groups are enclosed with by two outsides respectively that the conductor of insulating barrier is each other stranded to be constituted; It is characterized in that: described three conductor groups outside is enclosed with lapping layer, sub-shield respectively successively, is provided with earth connection between three conductor groups after the parcel sub-shield; The outside is enclosed with total screen successively, is provided with several core, drain wires filled out between described total screen and the sub-shield, and described drain wire is sectional area 0.1-0.8mm
2Thin copper wire, described drain wire contacts with total screen, sub-shield, and described total screen is enclosed with inner restrictive coating, armour, external sheath layer outward successively, and cable permission bending radius is not less than 13 times of external diameter.
2. flame retardant type computer shield cable according to claim 1 is characterized in that: described inside and outside restrictive coating material adopts flame-proof polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201488809U CN202126867U (en) | 2011-05-12 | 2011-05-12 | Flame retarding shielded cable for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201488809U CN202126867U (en) | 2011-05-12 | 2011-05-12 | Flame retarding shielded cable for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126867U true CN202126867U (en) | 2012-01-25 |
Family
ID=45489931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201488809U Expired - Fee Related CN202126867U (en) | 2011-05-12 | 2011-05-12 | Flame retarding shielded cable for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202126867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390885A (en) * | 2014-08-07 | 2016-03-09 | 泰科电子公司 | Cable assembly having a grounded cable harness |
-
2011
- 2011-05-12 CN CN2011201488809U patent/CN202126867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390885A (en) * | 2014-08-07 | 2016-03-09 | 泰科电子公司 | Cable assembly having a grounded cable harness |
| CN105390885B (en) * | 2014-08-07 | 2020-02-07 | 泰连公司 | Cable assembly with ground cable bundle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20130512 |