CN208521635U - A kind of digital signal cable - Google Patents

Abstract

The utility model discloses a kind of digital signal cable, including cable core, be successively arranged on cable core cotton paper layer, shielded layer, PVC material insulating layer, between cable core and cotton paper layer be filled with cotton yarn；Cable core is made of the support core of conducting wire and soft silica gel material, supporting core is cylinder, the support bar along itself axially extending plastic material is equipped with inside supporting-core body, support core circumference face has the wire casing for the formation that is recessed inside, circumference side of the wire casing around support core and the axial screw extension along support core, conducting wire are embedded in wire casing.Compared with prior art, the utility model has preferable resistance to damage.

Description

A kind of digital signal cable

Technical field

The utility model relates to field of cables more particularly to a kind of digital signal cables.

Background technique

Cable generally comprises following part: first, conductor wire core is made of high electrical conductivity materials (copper or aluminium).According to deposited If requirement of the use condition to cable softness, the every line heart may be twisted by solid conductor or multiple conducting wires；Second, Insulating layer, the insulating materials as cable should have a high insulation resistance, high breakdown field strength, low dielectric loss and Low dielectric constant.Cable will receive in installation or use process and pull or squeeze, and is easy to be damaged, more especially be used for The cable of data-signal is transmitted, damage-retardation ability is more weak.

Utility model content

The utility model is to solve existing technological deficiency, provides a kind of digital signal cable, is had preferable anti- Damage ability.Its specific technical solution is as follows:

The utility model discloses a kind of digital signal cable, including cable core, is successively arranged with cotton paper on cable core Layer, shielded layer, PVC material insulating layer, between cable core and cotton paper layer be filled with cotton yarn；Cable core is by conducting wire and soft The support core of silica gel material forms, and support core is cylinder, is equipped with inside supporting-core body along itself axially extending modeling Expect the support bar of material, support core circumference face has the wire casing for the formation that is recessed inside, circle of the wire casing around support core All sides simultaneously extend along the axial screw of support core, and conducting wire is embedded in wire casing.

Further, the configuration quantity of wire casing is two, in mutually twisted state between two lines slot；The configuration of conducting wire Quantity is adapted with the configuration quantity of wire casing.

Further, pass through adhesive bonding between conducting wire and wire casing.

Further, shielded layer includes aluminium foil layer and the copper wire layer that is woven by tin plating copper free wire, aluminium foil layer position The side of cable core is closed in copper wire layer.

Further, support bar is made of polyether-ether-ketone resin material.

The utility model has the beneficial effects that the support core of the utility model is cylinder, circumference side opens up spiral The wire casing of extension, conducting wire are embedded in wire casing, and conducting wire and support core collectively constitute cable core, and around cable core Cotton yarn is filled, then is wrapped up with cotton paper, keeps cable whole more mellow and fuller, cable can be made when in use in this way, installation process is more It is easy to add, and reduces the probability that cable is damaged during installing and using；Conducting wire is spirally wound on soft supporting core, support Core can be improved the tensile capacity of conducting wire, and support core can also buffer extruding force that cable is subject to (such as due to artificially stepping on Step on or article pound pressure and the extruding force of generation), play the role of protecting conducting wire；Support bar is worn in supporting-core body, can be improved The bending resistance of soft support core, and then improve the bending resistance of cable.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model embodiment；

Fig. 2 is the support core structural schematic diagram of the utility model embodiment.

It is marked in figure: support core 100, wire casing 101, conducting wire 200, cotton paper layer 300, shielded layer 400, insulating layer 500, branch Stay 600.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

The utility model is described in further detail below by specific embodiment combination attached drawing.Please refer to attached drawing.

The utility model discloses a kind of digital signal cable, including cable core, is successively arranged with cotton paper on cable core Layer 300, shielded layer 400, PVC material insulating layer 500, between cable core and cotton paper layer 300 be filled with strip cotton yarn, cotton The length direction of yarn and the length direction of cable core are identical, and specifically, cotton paper layer 300 is made of the cotton paper of strip, cotton paper It is spirally wound on cable core and forms cotton paper layer 300；Cotton paper layer 300 can be improved the tensile property of cable entirety and make electricity Cable global shape is more mellow and fuller.Cable core is made of conducting wire 200 and support core 100, and support core 100 is by soft material Matter is made, such as PVC (polyvinyl chloride) material or silica gel material or other soft materials, preferably silica gel material, silica gel have Good flame retardant property and corrosion resistance also have preferable flexibility, and the fire resistance of cable and corrosion-resistant can be improved Property, moreover it is possible to preferable buffer function is played to stress.Support core 100 is cylinder, supports and is equipped with inside core 100 along certainly The axially extending support bar 600 of body, the material of support bar 600 require certain rigidity and elasticity, and support bar 600 can be with The bending resistance for improving support core 100, can use rubber material or plastic material.Support 100 circumference face of core has Be recessed the wire casing 101 of formation inside, wire casing 101 around support core 100 circumference side and along the axis of support core 100 To extending spirally, specifically, wire casing 101 extends around the axis spiral surrounding of support core 100, and conducting wire 200 is embedded in wire casing In 101, specifically, conducting wire 200 includes copper wire bundle and the pvc insulating jacket being wrapped in outside copper wire bundle.The utility model Support core 100 be cylinder, circumference side opens up the wire casing 101 extended spirally, and conducting wire 200 is embedded in wire casing 101, Conducting wire 200 and support core 100 collectively constitute cable core, and cotton yarn are filled around cable core, then wrapped up with cotton paper, Keep cable whole more mellow and fuller, cable can be made when in use in this way, installation process is more easier, and reduce cable makes in installation The probability being damaged during；Conducting wire 200 is spirally wound on soft supporting core 100, and support core 100, which can be improved, leads The tensile capacity of line 200, support core 100 can also buffer extruding force that cable is subject to (such as due to artificially trampling or article The extruding force pounding pressure and generating), play the role of protecting conducting wire 200；Support bar 600 is worn in support core 100, can be improved The bending resistance of soft support core 100, and then improve the bending resistance of cable.

Further, the configuration quantity of wire casing 101 is two, in mutually twisted state between two lines slot 101；Conducting wire 200 configuration quantity is adapted with the configuration quantity of wire casing 101, and conducting wire 200 has two, and conducting wire 200 is embedded in wire casing 101 When, tensile capacity also is improved in mutually twisted state between two conducting wires 200, improves anti-interference ability.

Further, pass through adhesive bonding, the preferred polyvinyl alcohol of the material of adhesive between conducting wire 200 and wire casing 101 Formal, adhesive is fixed on conducting wire 200 on wire casing 101, simple and fast, moreover it is possible to improve conducting wire 200 and support core 100 it Between connective stability, and then improve cable whole tensile property.

Further, shielded layer 400 includes aluminium foil layer and the copper wire layer that is woven by tin plating copper free wire, aluminium foil layer The side of cable core is closed on positioned at copper wire layer, aluminium foil layer and copper wire layer can play the role of double layer screen, improve anti-interference energy Power, and aluminium foil layer and copper wire layer can also improve the tensile property of cable.

Further, support bar 600 is made of flexible plastic material, such as PVC material or polyether-ether-ketone resin material Or the composite material of polyether-ether-ketone resin is made, it is preferred to use polyether-ether-ketone resin, polyether-ether-ketone resin have good resistance Performance is fired, lower dielectric coefficient is provided simultaneously with, can be improved the flame retardant property of cable entirety, improve the matter of data signal transmission Amount.

The above content is combine specific embodiment further detailed description of the utility model, and it cannot be said that The specific implementation of the utility model is only limited to these instructions.For the utility model person of an ordinary skill in the technical field For, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made.

Claims (5)

1. a kind of digital signal cable, including cable core, cotton paper layer (300), shielding are successively arranged on the cable core The insulating layer (500) of layer (400), PVC material is filled with cotton yarn between the cable core and the cotton paper layer (300)；It is described Cable core is made of the support core (100) of conducting wire (200) and soft silica gel material, and the support core (100) is cylinder Shape, the internal support bar (600) being equipped with along itself axially extending plastic material of support core (100), the support Core (100) circumference face has the wire casing (101) for the formation that is recessed inside, and the wire casing (101) is around the support core (100) circumference side and the axial screw extension along support core (100), the conducting wire (200) is embedded in described In wire casing (101).

2. digital signal cable as described in claim 1, which is characterized in that the configuration quantity of the wire casing (101) is two, In mutually twisted state between two wire casings (101)；The configuration quantity of the conducting wire (200) and the wire casing (101) Configuration quantity be adapted.

3. digital signal cable as described in claim 1, which is characterized in that the conducting wire (200) and the wire casing (101) it Between pass through adhesive bonding.

4. digital signal cable as described in claim 1, which is characterized in that the shielded layer (400) include aluminium foil layer with And the copper wire layer being woven by tin plating copper free wire, the aluminium foil layer are located at the copper wire layer and close on the one of the cable core Side.

5. digital signal cable as described in claim 1, which is characterized in that the support bar (600) is by polyether-ether-ketone resin Material is made.