CN207867944U - A kind of USB cable line - Google Patents

Abstract

The utility model discloses a kind of USB cable lines, including cable core component, the establishment shielded layer and PVC sheath layer that are wrapped in cable core component outer layer；Cable core component includes 2 pairs of shielded signal lines to, 1 pair of unmasked signal wire pair and 2 power cords, and several combustion-proof glass fiber fillers are filled between cable core component and establishment shielded layer.The utility model using the above structure, can reduce cable entirety size, and further fire-retardant, high temperature resistant, use are more safe and reliable.

Description

A kind of USB cable line

Technical field

The utility model is related to data line technical fields, and in particular to a kind of USB cable line.

Background technology

The fast development of internet, scientific and technical is constantly progressive, in multimedia video people constantly pursue faster, it is high Clearly, the technology of transmission quantity bigger, to currently advanced 3.0 technology (USB of USB occur：Universal Serial Bus, universal serial bus).USB 3.0 can be that external data transmission technology bring the change advanced by leaps and bounds, and foreground is by one Piece is bright, and the demand of 3.0 cables of USB to match therewith is also growing day by day.

The process structure of USB3.0 is still the process structure for continuing to use USB2.0 cables, although USB3.0 electricity can be produced Cable, USB3.0 realize that high frequency high capacity transmission, high temperature resistant heat-resisting to cable, fireproof require higher due to needing.And due to The more two pairs of shielded signal lines pair for being used for transceiving data of USB3.0, therefore be that its outer diameter is thicker, the more previous USB 2.0 of flexibility Cable is poor.

Utility model content

The purpose of this utility model is that disclosing a kind of USB cable line, solve and the matched USB electricity of USB3.0 technologies Cable is heat-resisting, high temperature resistant, fire protecting performance are poor, not enough soft problem.

In order to achieve the above objectives, the utility model adopts the following technical solution：

A kind of USB cable line, including cable core component, the establishment shielded layer and PVC sheath layer that are wrapped in cable core component outer layer (PVC：Polyvinyl chloride, polyvinyl chloride)；Cable core component includes 2 pairs of shielded signal lines to, 1 pair of unmasked signal wire Pair and 2 power cords, cable core component and establishment shielded layer between be filled with several combustion-proof glass fiber fillers.

Further, the shielded signal line to include 2 shielding lines and package 2 shielding lines the first shield dielectric layer, Shielding line includes by the twisted shielding core constituted of at least 2 tinned wirds.

Further, the shielding line further includes the first anti-corona dope layer being covered on the shielding core, is covered in Secondary shielding insulating layer on first anti-corona dope layer.

Further, the copper of the tinned wird is made of hypoxemia copper material of the oxygen content in 300ppm.

Further, the power cord includes by conductor wire core that at least 2 copper-clad aluminum conductors are hinged to form, is covered in conductor wire Anti-halation layer on core and the polyamidoimide dope layer being covered on anti-halation layer.

Further, further, the layers of copper of the copper-clad aluminum conductor is made of hypoxemia copper material of the oxygen content in 300ppm.

Further, the PVC sheath layer is made of low smoke and low halogen insulating grade PVC sheath material；Low smoke and low halogen is exhausted Edge grade PVC sheath material include polyvinyl chloride resin, plasticizer a, calcinated argil, fire retardant a, colour black, fire retardant b, heat stabilizer, Plasticizer b, antioxidant, fire retarding synergist, polyethylene wax, lubricant, plasticizer c, metal naphthenate, capsaicine and smoke elimination Agent；The degree of polymerization of polyvinyl chloride resin is 800~1300；Antismoke agent is selected from molybdenum compound；Plasticizer a is dioctyl terephthalate；It is fire-retardant Agent a is three oxygen, two antimony；Plasticizer b is didecyl phthalate；Fire retardant b is inorganic hydroxide；Plasticizer c is inclined benzene three Sour three monooctyl esters；Lubricant is G60；The main component of G60 is the dicarboxylic acids fat of fatty alcohol.

Compared with prior art, the beneficial effects of the utility model：

The utility model use combustion-proof glass fiber filler structure, compared with prior art in shielded signal line to, Unmasked signal wire pair and power cord are located on the structure of a filler, can reduce cable entirety size, and further resistance Combustion, high temperature resistant.PVC sheath layer is made of low smoke and low halogen insulating grade PVC sheath material, has low cigarette, low halogen, fire-retardant, ring The advantages of guarantor, use are more safe and reliable.

Shielding line and power cord use the conductor wire core of twisting structure, reduce core relative displacement, make stable structure, circle Whole, configured transmission is stablized.The first shield dielectric layer and secondary shielding insulating layer of shielding line are all made of solid polyethylene layer, insulation Resistance coefficient is high, and relative dielectric constant is small, and the loss of electromagnetic energy is small, meets in USB3.0 transport protocols to shielded signal line pair Propagation delay time and attenuation requirement.The polyamidoimide dope layer of power cord is made of special polyamidoimide finishing coat, Friction coefficient is low, and the flexibility of paint film and wearability are good, prevents because of shielded signal line to, unmasked signal wire to power supply The friction of line causes power cord damaged, extends the service life of the utility model.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, other drawings may also be obtained based on these drawings.

Fig. 1 is a kind of cross-sectional view of USB cable line embodiment of the utility model；

Fig. 2 is the cross-sectional view of power cord in Fig. 1.

In figure, shielded layer 1 is worked out；PVC sheath layer 2；Shielded signal line pair 3；Shielding line 31；First shield dielectric layer 32； Unmasked signal wire pair 4；Power cord 5；Conductor wire core 51；Anti-halation layer 52；Polyamidoimide dope layer 53；Fireproof glass is fine Tie up filler 6.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

A kind of USB cable line of embodiment as depicted in figs. 1 and 2, including cable core component, the volume for being wrapped in cable core component outer layer Shielded layer 1 and PVC sheath layer 2 processed.Cable core component includes 2 pairs of 3,1 pairs of shielded signal line pair power supplys of unmasked signal wire pair 4,2 Line 5.2 pairs of shielded signal lines pair 3 are used for data transmission, and 1 pair of unmasked signal wire pair 4 is used for and USB2.0 technical compatibilities.Cable core Several tiny combustion-proof glass fiber fillers 6 are filled between component and establishment shielded layer 1, it is middle screen compared with prior art The structure that signal wire pair 3, unmasked signal wire pair 4 and power cord 5 are located on a filler is covered, it is integrally big cable can be reduced It is small, and further fire-retardant, high temperature resistant.

Shielded signal line pair 3 includes the first shield dielectric layer 32 of 2 shielding lines 31 of 2 shielding lines 31 and package, shielding Line 31 includes by the twisted shielding core constituted of at least 2 tinned wirds, is covered in the first anti-corona coating shielded on core Layer and the secondary shielding insulating layer being covered on the first anti-corona dope layer.The copper of tinned wird is using oxygen content in 300ppm Hypoxemia copper material be made, have higher ductility.It shields core and uses lay configuration, reduce core relative displacement, make knot Structure stabilization, rounding, configured transmission are stablized.First shield dielectric layer 32 and secondary shielding insulating layer are all made of solid polyethylene layer, Using the structure of solid polyethylene layer, insulation resistance coefficient is high, and relative dielectric constant is small, and the loss of electromagnetic energy is small, meets To the propagation delay time and attenuation requirement of shielded signal line pair in USB3.0 transport protocols.

Power cord 5 includes by conductor wire core 51 that at least 2 copper-clad aluminum conductors are hinged to form, is covered on conductor wire core 51 Anti-halation layer 52 and the polyamidoimide dope layer 53 being covered on anti-halation layer 52.The layers of copper of copper-clad aluminum conductor uses oxygen content Hypoxemia copper material in 300ppm is made, and has higher ductility, pliability is significantly after annealing for copper-clad aluminum conductor It improves.Copper resource has been saved using copper-clad aluminum conductor, under the premise of meeting the requirement of electric elements conduction, has significantly reduced and is fabricated to This.Conductor wire core 51 uses lay configuration, reduces core relative displacement, and stable structure, rounding, configured transmission is made to stablize.Polyamides Amine imide coating layer 53 is made of special polyamidoimide finishing coat, polyamidoimide finishing coat include lubricating and wear-resisting at Part, solvent and lacquer；Solvent is the mixture of N-Methyl pyrrolidone and dimethylbenzene；Lacquer is polyamidoimide paint.Using Special polyamidoimide finishing coat replaces external coating of the common polyamide imide coating as conductor wire core 1, need not be another Outer re-coating lubricant layer, not only friction coefficient is low, but also the flexibility of paint film and wearability are good, prevent because shielded signal line to, Unmasked signal wire extends the service life of the present embodiment to causing power cord damaged the friction of power cord 5.

PVC sheath layer 2 is made of low smoke and low halogen insulating grade PVC sheath material, low smoke and low halogen insulating grade PVC sheath Material includes：Polyvinyl chloride resin, calcinated argil, fire retardant a, colour black, fire retardant b, heat stabilizer, plasticizer b, resists plasticizer a Oxygen agent, fire retarding synergist, polyethylene wax, lubricant, plasticizer c, metal naphthenate, capsaicine and antismoke agent；Polyvinyl chloride resin The degree of polymerization is 800~1300；Antismoke agent is selected from molybdenum compound；Plasticizer a is dioctyl terephthalate；Fire retardant a is three oxygen two Antimony；Plasticizer b is didecyl phthalate；Fire retardant b is inorganic hydroxide；Plasticizer c is trioctyl trimellitate (TOTM)；Profit Lubrication prescription is G60；The main component of G60 is the dicarboxylic acids fat of fatty alcohol.The present embodiment is using low halogen flame-proof PVC sheath layer 2 Structure has low cigarette, low halogen, fire-retardant, environmentally friendly advantage, meets ROHS standards.

The other structures of the present embodiment are referring to the prior art.

The utility model is not limited to the above embodiment, if various changes or modifications to the utility model do not take off Spirit and scope from the utility model, if these modification and variations belong to the claims and equivalents of the utility model Within the scope of, then the utility model is also intended to include these modification and variations.

Claims (7)

1. a kind of USB cable line, it is characterized in that：Including cable core component, it is wrapped in the establishment shielded layer and PVC of cable core component outer layer Restrictive coating；Cable core component includes 2 pairs of shielded signal lines to, 1 pair of unmasked signal wire pair and 2 power cords, cable core component and volume Several combustion-proof glass fiber fillers are filled between shielded layer processed.

2. a kind of USB cable line according to claim 1, it is characterised in that：The shielded signal line is to including 2 shielding lines With the first shield dielectric layer of 2 shielding lines of package, shielding line includes by the twisted shielding line constituted of at least 2 tinned wirds Core.

3. a kind of USB cable line according to claim 2, it is characterised in that：The shielding line further includes being covered in the screen The secondary shielding insulating layer for covering the on core first anti-corona dope layer, being covered on the first anti-corona dope layer.

4. according to a kind of USB cable line described in Claims 2 or 3, it is characterised in that：The copper of the tinned wird uses oxygen content Hypoxemia copper material in 300ppm is made.

5. a kind of USB cable line according to claim 1, it is characterised in that：The power cord includes by least 2 copper clad aluminums Conductor wire core, the anti-halation layer being covered on conductor wire core and the polyamide acyl being covered on anti-halation layer that line is hinged to form are sub- Amine dope layer.

6. a kind of USB cable line according to claim 5, it is characterised in that：The layers of copper of the copper-clad aluminum conductor uses oxygen content Hypoxemia copper material in 300ppm is made.

7. according to a kind of USB cable line of claim 1,2,3,5 or 6, it is characterised in that：The PVC sheath layer is by low cigarette Low halogen fire retardant insulating grade PVC sheath material is made；Low smoke and low halogen insulating grade PVC sheath material includes polyvinyl chloride resin, plasticizer a, forges Burn clay, fire retardant a, colour black, fire retardant b, heat stabilizer, plasticizer b, antioxidant, fire retarding synergist, polyethylene wax, Lubricant, plasticizer c, metal naphthenate, capsaicine and antismoke agent；The degree of polymerization of polyvinyl chloride resin is 800~1300；Antismoke agent Selected from molybdenum compound；Plasticizer a is dioctyl terephthalate；Fire retardant a is three oxygen, two antimony；Plasticizer b is phthalic acid two Last of the ten Heavenly stems ester；Fire retardant b is inorganic hydroxide；Plasticizer c is trioctyl trimellitate (TOTM)；Lubricant is G60；The main component of G60 It is the dicarboxylic acids fat of fatty alcohol.