CN205595084U - Multifunctional sound equipment cable - Google Patents

Abstract

The utility model provides a multifunctional sound equipment cable, it includes composite shielding layer and sets up in composite shielding layer several insulation core, stoppings that comprise composite conductor and insulating layer and set up the restrictive coating outside composite shielding layer, composite conductor includes center conductor and the outer contact that strands around center conductor, composite shielding layer includes insulation screen, anti dry drain wire, band and wire braid, anti dry drain wire strands the stranding together with insulation core and hugs closely insulation core's insulation screen, thereby it adopts composite conductor and compound shielding structure to overcome the big and signal of current stereo set line transmission attenuation to mix the scheduling problem to overall structure scientific and reasonable, the simple installation can guarantee that cable every inside conductor can not the mutual interference between respective signal when the transmission heavy current, and outside electromagnetic interference signal is kept apart outside the cable, it extensively is applicable to, and the sound equipment of family is supporting to be used.

Description

A kind of multi-functional audio cable

Technical field

This utility model relates to a kind of multi-functional audio cable.

Background technology

At present, market occurs that the common sound wire that family commonly uses exists following situation: 1. mill run uses several identical rule The hypoxia bare copper stranded wire of lattice diameter monofilament is as conductor, thus structure is single, and the decay making transmission is big, and signal mixes, high, In, the low mixture of tones can not differentiate；2. mill run uses common polrvinyl chloride as insulant, makes the characteristic impedance can not Coupling, thus cause the decay of transmission greatly, audio distortions；3. the unshielded structure of mill run or shielding construction are single, cause Signal interferes, and easily produces noise；4. mill run shell-less, fragile insulating barrier and conductor in installing and using Core.

Summary of the invention

For above-mentioned situation, this utility model purpose is to provide a kind of multi-functional audio cable, and it uses composite conductor with multiple Close shielding construction thus overcome existing sound wire transmission attenuation big and signal such as mixes at the problem；And overall structure is scientific and reasonable, Simple installation, can guarantee that every conductor of cable inner will not interfere with each other between respective signal when transmitting big electric current, and Outside electromagnetic interference signal is isolated in outside cable, the effective guarantee satisfaction of big current signal transfer.

For realizing above-mentioned task, a kind of multi-functional audio cable, it includes composite shielding layer and is arranged in composite shielding layer Several insulated wire cores, inserts and restrictive coatings of being arranged at outside composite shielding layer being made up of composite conductor and insulating barrier；Described Composite conductor includes center conductor and around the stranded outer contact of center conductor, described composite shielding layer include insulation screen, Anti-dry drain wire, band and wire braid.

For realizing this utility model structure, effect optimization, its further step: described center conductor be 1 strand by 37 The monofilament copper stranded conductor concentric stranding of diameter 0.18～0.25mm forms.

Described outer contact includes 3～12 strands and per share by the monofilament copper stranded conductor concentric stranding of 37 diameters 0.08～0.15mm Form.

Described monofilament copper stranded conductor is the naked annealed copper strand wire of high-purity anaerobic.

Described insulation screen is that conductive polyvinyl chloride extrudes and forms outside the insulating barrier of every insulated wire cores, this insulation screen Average thickness be 0.05～0.30mm, concentricity be not less than 80%.

Described several insulated wire cores is 2～8 and there is no torsion twisted synthesizing cable, and described insulating barrier is by relatively low solid poly-of dielectric constant Ethylene or polyethylene foamed are extruded on outer contact formation, and the thickness of this insulating barrier is 0.3～0.7mm.

Described anti-dry drain wire is 1～3, and every anti-dry drain wire is 0.10～0.30mm by 7～19 strands of filament diameters Naked annealed copper wire or tinned wird is stranded forms；Anti-dry drain wire twisted synthesizing cable be close to the exhausted of insulated wire cores together with insulated wire cores Edge screen layer.

Described band is that metal covering outwardly and is formed and lap-joint's weight by the aluminium-plastic tape spiral of thickness 0.025～0.10mm is wrapped Folded rate is not less than 20%.

Described wire braid is arranged at outside aluminium-plastic tape by naked annealed copper wire or the tin plating soft circle of diameter 0.10～0.25mm Copper wire woven forms, and count is not less than 85%.

The nominal thickness of described restrictive coating is not less than 1.0mm, and sheath maximum outside diameter is not more than 20mm；This restrictive coating is by fire-retardant ring Guarantor's type polrvinyl chloride, low smoke halogen-free flame-retardant polyolefin, low-smoke non-halogen flame-retardant cross-linked polyolefin, thermoplastic elastomer (TPE), thermoplasticity Rubber, TPV or thermoplastic polyurethane extrude and form outside wire braid.

This utility model provides a kind of multi-functional audio cable, and it counts in including composite shielding layer and being arranged at composite shielding layer Insulated wire cores that root is made up of composite conductor and insulating barrier, inserts and the restrictive coating being arranged at outside composite shielding layer；Described multiple Closing conductor and include center conductor and around the stranded outer contact of center conductor, described composite shielding layer includes insulation screen, anti- Dry drain wire, band and wire braid；Anti-dry drain wire twisted synthesizing cable be close to insulated wire cores together with insulated wire cores Insulation screen；It uses composite conductor and composite barrier structure thus overcomes existing sound wire transmission attenuation to mix with signal greatly Etc. problem, and overall structure is scientific and reasonable, simple installation, can guarantee that every conductor of cable inner is when transmitting big electric current Will not interfere with each other between respective signal, and the electromagnetic interference signal of outside is isolated in outside cable, the big electricity of effective guarantee The satisfaction of stream signal transmission, has significant economic benefit and social benefit, wide market, it is simple to promote the use of.

This utility model produced beneficial effect compared to existing technology:

I, this utility model uses the naked annealed copper wire of high-purity anaerobic as conductor, and transmission attenuation is little, and loss of signal is little, data Transmission is fast, can deduce the genuineness of sound, natural reality, more presence；

II, this utility model uses composite conductor structure, and peripheral conductors is uniformly distributed spiral surrounding around center conductor, makes Low frequency separates with high frequency signal, accomplishes that high, normal, basic sound is well arranged, and bass shakes, middle pitch is pure, high pitch is plentiful, tonequality Penetrating the most undistorted, show top seeing and hearing enjoyment fully；

III, this utility model uses the low solid polyethylene of dielectric constant or polyethylene foamed as insulating barrier, makes the resistance of conductor Resist and can ensure that tonequality is penetrating the most undistorted with the impedance matching of Music centre loudspeaker and resistance value≤16 Ω, and electrical insulation capability Excellence, insulation resistance >=500M Ω km when 20 DEG C；

IV, this utility model use composite barrier structure, both can guarantee that transmit big electric current time signal between without interference with, again Can guarantee that the electromagnetic interference signal of outside is isolated in outside cable, it is achieved that the satisfaction of big current signal transfer；

V, this utility model uses the crosslinking of anti-flaming environment-friendly polrvinyl chloride, low smoke halogen-free flame-retardant polyolefin, low-smoke non-halogen flame-retardant Polyolefin, thermoplastic elastomer (TPE), thermoplastic elastomer, TPV or thermoplastic polyurethane are as sheath material, both Insulating barrier, conductor and screen layer can be protected in installing and using, product appearance can be made again to show air and your gas, outward appearance essence fully Beautiful；

VI, sheath of the present utility model uses environmental protection flame retardant antioxidative material, has good high-low temperature resistant, wear-resisting, resistance to The features such as solvent, oil resistant, fire-retardant, aging resistance, improve service life；

VII, this utility model resists the outer rim of dry drain wire to be all close to the insulation screen of every insulated wire cores, in can guarantee that cable The every insulated wire cores in portion respective signal when transmitting big electric current will not interfere with each other, and anti-dry drain wire can be by covered wire What core produced magnetic field when transmitting big electric current converted disturbs the leakage current of electric current and insulated wire cores itself from insulation screen On introduce underground by ground connection, thus resistance to voltage is good, proof voltage: AC 800V/1min does not punctures, and ensures and uses safety.

This utility model is widely used in home audio coordinative composition of equipments and uses.

Below with reference to figure, this utility model is described in further detail.

Accompanying drawing explanation

Fig. 1 is overall structure sectional view of the present utility model.

Fig. 2 is the sectional view of insulated wire cores in this utility model.

In figure: 1-restrictive coating, 2-braid, 3-band, 4-insulated wire cores, 41-composite conductor, 411-center conductor, 412-outer contact, 42-insulating barrier, 43-insulation screen, 5-inserts, 6-resists dry drain wire.

Detailed description of the invention

With reference to accompanying drawing, this utility model is achieved in that a kind of multi-functional audio cable, it include composite shielding layer and Several insulated wire cores 4, inserts 5 and settings being made up of composite guide 41 body and insulating barrier 42 in being arranged at composite shielding layer Restrictive coating 1 outside composite shielding layer；Described composite conductor 41 includes center conductor 411 and stranded around center conductor 411 Outer contact 412, described composite shielding layer includes insulation screen 43, anti-dry drain wire 6, band 3 and metal wire knitted Layer 2.

As it is shown in figure 1, anti-interference winding displacement 6 of the present utility model by 7～19 filament diameters be 0.10～0.30mm naked Annealed copper strand wire or tin-coated copper twisted wire concentric stranding form, and this resists the outer rim of dry drain wire 6 to be close to the insulation shielding of insulated wire cores 4 Layer 43, typically can ensure every insulated wire cores by the centre that anti-dry drain wire 6 is arranged at all insulated wire cores 4 in actual production The insulation screen 43 of 4 all can contact with the outer rim of anti-interference winding displacement 6, and this structure can ensure that insulated wire cores 4 is at the big electricity of transmission Will not interfere with each other between respective signal during stream, and anti-dry drain wire 6 can be by composite conductor 41 when transmitting big electric current The leakage current of the interference electric current producing magnetic field and convert and composite conductor 41 itself passes through grounding lead from insulation screen 43 Enter underground, ensure and use safety；Described band 3 is one layer 0.025～0.10mm thick aluminium-plastic tape, and this composite band Metal covering arrange outwardly and contact with wire braid 2, described aluminium-plastic tape uses spiral winding packet mode and lap-joint Duplication not less than 20%；Described wire braid 2 by a diameter of 0.10～0.25mm naked annealed copper wire or tin plating soft circle Copper wire woven forms, and count is not less than 85%；This cable uses two-layer compound shielding construction, has both ensured in transmission big Will not interfere between signal during electric current, can guarantee that again the high and low frequency electromagnetic interference signal of external environment condition is multiple by plastic-aluminum Crossed belt and the double layer screen of wire braid 2 and be isolated in outside insulated wire cores 4, will not be to cable inner composite conductor 41 Signal disturb, it is ensured that the satisfaction of big current signal transfer；Due to anti-dry drain wire 6 external diameter is smaller and with absolutely The insulation screen 43 of edge core 4 contacts, and insulation screen 43 external diameter of insulated wire cores 4 is bigger, so 2～8 There is space in the surrounding of root insulated wire cores 4, and arranges non-absorbent material in gap and as inserts 5, main purpose be Make cable outward appearance rounding, and will not the moisture absorption, it is possible to increase the insulating properties of cable；Described restrictive coating 1 is by one layer of fire-retardant ring Guarantor's type polrvinyl chloride, low smoke halogen-free flame-retardant polyolefin, low-smoke non-halogen flame-retardant cross-linked polyolefin, thermoplastic elastomer (TPE), thermoplasticity Rubber, TPV or thermoplastic polyurethane are arranged at outside braid 2 to extrude and form, and the thickness of this restrictive coating 1 is not Less than 1.0mm, and the maximum outside diameter of restrictive coating 1 is not more than 20mm；This structure can protect insulating barrier in installing and using 42, composite conductor 41 and insulation screen 43, can make again product appearance exquisite, shows air and your gas, and oversheath fully Use environmental protection flame retardant antioxidative material, there is good high-low temperature resistant, wear-resisting, solvent resistant, oil resistant, fire-retardant, aging resistance Etc. feature, thus increase the service life.

As in figure 2 it is shown, the composite conductor 41, absolutely that every insulated wire cores 4 of the present utility model includes setting gradually from the inside to the outside Edge layer 42 and insulation screen 43, described composite conductor 41 by 3～12 strands of equally distributed outer contacts 412 around 1 strand Center conductor 411 concentric stranding forms, the center conductor 411 of this composite conductor 41 by 37 filament diameters be 0.18～ The high-purity anaerobic axial concentric stranding of naked annealed copper wire of 0.25mm forms, the per share outer contact 412 of this composite conductor 41 by 37 filament diameters be 0.08～0.15mm the high-purity anaerobic axial concentric stranding of naked annealed copper wire form；Use high-purity without The naked soft copper of oxygen as composite conductor 41, make that transmission attenuation is little, loss of signal is little, data transmission fast, and whole composite conductor 41 use inside and outside stranded composite construction, low frequency can be made to separate with high frequency signal, thus it is well arranged to realize high, normal, basic sound, Bass shock, middle pitch is pure, high pitch is plentiful, tonequality penetrating from however undistorted, the genuineness of sound can be deduced, more Tool presence, shows top seeing and hearing enjoyment fully；Described insulating barrier 42 uses the solid polyethylene or the poly-second that foams that dielectric constant is low Alkene is extruded in composite conductor 41 outer rim and forms, and the thickness of this insulating barrier 42 is 0.3～0.7mm；This structure can make insulated wire cores The impedance of 4 can be with the impedance matching of Music centre loudspeaker and stable performance, and resistance value≤16 Ω can ensure that tonequality is penetrating the most not Distortion；And electrical insulation capability is excellent, and insulation resistance >=500M Ω km when 20 DEG C, resistance to voltage is good, proof voltage: AC 800V/1min does not punctures, and ensures and uses safety；Described insulation screen 43 uses one layer of conductive polyvinyl chloride to extrude in insulation Forming outside layer 42, the thickness of this screen layer 43 is 0.05～0.30mm and concentricity is not less than 80%.

In conjunction with accompanying drawing, restrictive coating 1 that this utility model includes setting gradually from outside to inside, wire braid 2, band 3, And two to eight insulated wire cores 4 of being arranged in band 3 and one to three anti-dry drain wire 6；Described insulated wire cores 4 with The quantity of anti-dry drain wire 6 is mated with user's request situation according to producing reality, thoroughly does away with edge when cable arranges two or three During core 4, it is only necessary to the centrally disposed anti-dry drain wire 6 surrounded in all insulated wire cores 4 can ensure anti-interference row The outer rim of line 6 can be close to the insulation screen 43 of every insulated wire cores 4；It is four to eight when cable arranges the quantity of insulated wire cores During root, then the center area surrounded because of all insulated wire cores 4 is relatively big, then need to arrange two to three accordingly and resist dry Disturb winding displacement 6 to be all close to the outer rim of anti-interference winding displacement 6 to the insulation screen 43 ensureing every insulated wire cores 4, to protect Barrier insulated wire cores 4 will not interfere with each other between respective signal when transmitting big electric current, and anti-dry drain wire 6 can be by compound What conductor 41 produced magnetic field when transmitting big electric current and converted disturbs the leakage current of electric current and composite conductor 41 itself from shielding Introduce underground by ground connection on layer 43, ensure and use safety.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this area Technical staff for, this utility model can have various modifications and variations；It is all within spirit of the present utility model and principle, Any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (10)

1. a multi-functional audio cable, it is characterised in that several in including composite shielding layer and being arranged at composite shielding layer The insulated wire cores that is made up of composite conductor and insulating barrier, inserts and the restrictive coating being arranged at outside composite shielding layer；Described compound Conductor includes center conductor and around the stranded outer contact of center conductor, and described composite shielding layer includes insulation screen, anti-dry Drain wire, band and wire braid.

A kind of multi-functional audio cable the most according to claim 1, it is characterised in that described center conductor be 1 strand by The monofilament copper stranded conductor concentric stranding of 37 diameters 0.18～0.25mm forms.

A kind of multi-functional audio cable the most according to claim 1, it is characterised in that described outer contact includes 3～12 Stock and per share formed by the monofilament copper stranded conductor concentric stranding of 37 diameters 0.08～0.15mm.

4. according to a kind of multi-functional audio cable described in Claims 2 or 3, it is characterised in that described monofilament copper stranded conductor is The naked annealed copper strand wire of high-purity anaerobic.

A kind of multi-functional audio cable the most according to claim 1, it is characterised in that described insulation screen is conduction Polrvinyl chloride extrudes and forms outside the insulating barrier of every insulated wire cores, the average thickness of this insulation screen be 0.05～ 0.30mm, concentricity is not less than 80%.

A kind of multi-functional audio cable the most according to claim 1, it is characterised in that described several insulated wire cores be 2～ 8 there is no torsion twisted synthesizing cable, and described insulating barrier is extruded in outer layer by the relatively low solid polyethylene of dielectric constant or polyethylene foamed Being formed on conductor, the thickness of this insulating barrier is 0.3～0.7mm.

A kind of multi-functional audio cable the most according to claim 1, it is characterised in that described anti-dry drain wire is 1～3 Root, every anti-dry drain wire by 7～19 strands of filament diameters 0.10～0.30mm naked annealed copper wire or tinned wird is stranded forms； Anti-dry drain wire twisted synthesizing cable be close to the insulation screen of insulated wire cores together with insulated wire cores.

A kind of multi-functional audio cable the most according to claim 1, it is characterised in that described band be metal covering outwardly And wrapped formed and lap-joint's Duplication is not less than 20% by the aluminium-plastic tape spiral of thick 0.025～0.10mm.

A kind of multi-functional audio cable the most according to claim 8, it is characterised in that described wire braid is arranged Outside aluminium-plastic tape, naked annealed copper wire or the braiding of tin plating soft circular copper wire by diameter 0.10～0.25mm form, and count Not less than 85%.

A kind of multi-functional audio cable the most according to claim 1, it is characterised in that the nominal thickness of described restrictive coating Not less than 1.0mm, sheath maximum outside diameter is not more than 20mm；This restrictive coating is by anti-flaming environment-friendly polrvinyl chloride, low smoke and zero halogen resistance Combustion polyolefin, low-smoke non-halogen flame-retardant cross-linked polyolefin, thermoplastic elastomer (TPE), thermoplastic elastomer, TPV or heat Plastic polyurethane extrudes and forms outside wire braid.