CN215954856U

CN215954856U - Flexible cable for computer

Info

Publication number: CN215954856U
Application number: CN202122044912.7U
Authority: CN
Inventors: 熊立志; 潘路豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-03-04
Anticipated expiration: 2031-08-27

Abstract

The utility model relates to the technical field of computer cables, in particular to a flexible cable for a computer, which comprises four conductor units; a support member for mounting and protecting the conductor unit; through setting up the support barrel holder that is used for installing the conductor unit that a plurality of connects through connecting the rope, the ellipse that the conductor unit passes through the elasticity broach and puts into the support barrel holder holds the intracavity, a plurality of supports the barrel holder and is the fishbone form through connecting the rope connection, the clearance has between per two support barrel holders, the cable has the bending space when making the cable of buckling, the inside central point department of putting of support barrel holder is circular cavity, when the cable received the radial extrusion of external acting force, support the barrel holder itself can be through the inside shrink of compression circular cavity orientation, make the extrusion force or the power that the support barrel holder received turn into the partial deformation that supports barrel holder self through circular cavity, absorb or disperse the effort, and then avoid the conductor unit to receive tensile stress too big and damage.

Description

Flexible cable for computer

Technical Field

The utility model relates to the technical field of computer cables, in particular to a flexible cable for a computer.

Background

The computer cable is suitable for electronic computer and automatic instrument with rated voltage of 500V or below and high interference preventing requirement, and is used mainly in computer power supply and power transmission and distribution line with rated voltage of 1KV or below for electric power transmission.

The flexibility and the tensile property of the computer cable directly influence the service life of the cable, and for the cable with poor tensile property, accidents such as cable breakage and the like can be caused due to excessive extrusion or stretching and the like in a working place, the flexibility of the cable is poor, the condition of cable core breakage can be caused due to the bending of the cable, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a flexible cable for a computer, which comprises:

four conductor units;

a support member for mounting and protecting the conductor unit;

the wrapping tape layer, the shielding layer and the outer sheath are sequentially arranged on the outer side of the supporting component;

the supporting component comprises a plurality of supporting barrel frames which are distributed along the axial direction of the cable at equal intervals, the supporting barrel frames are connected through connecting ropes to form a fishbone shape, four oval containing cavities are formed in the supporting barrel frames in an axisymmetric distribution mode, and the conductor units are arranged in the four oval containing cavities.

Furthermore, the conductor unit comprises two groups of conductor core groups formed by mutually twisting a plurality of conductor cores, the outer walls of the conductor core groups are coated with insulating layers to form conductors, and the two conductors are arranged in a pairwise tangential manner and are wound into an oval section together with the filling ropes distributed on the outer sides of the conductors by polyester tapes.

Furthermore, elastic comb teeth are fixedly arranged on the support barrel frame corresponding to each oval containing cavity.

Furthermore, a heat dissipation layer is arranged between the conductor unit and the oval cavity.

Furthermore, the connecting rope is a multi-strand twisted steel wire rope.

Further, the inner middle position of the supporting barrel frame is provided with a circular cavity.

Furthermore, a through hole for penetrating and connecting the rope is formed between every two oval cavities.

Further, the outer wall of the outer sheath is coated with a protective layer.

Compared with the prior art, the utility model has the beneficial effects that:

set up a plurality of through setting up the support barrel holder that is used for installing the conductor unit that a plurality of connects through connecting the rope, the conductor unit passes through the elasticity broach and puts into the oval appearance intracavity that supports the barrel holder, a plurality of supports the barrel holder and is the fish bone form through connecting the rope connection, the clearance has between per two support barrel holders, the cable has the bending space when making the cable of buckling, the inside central point department of putting of support barrel holder is circular cavity, when the cable received the radial extrusion of outside effort, support the barrel holder itself can be through the inside shrink of the circular cavity orientation of compression, make the extrusion force or the power that the support barrel holder received turn into the partial deformation that supports the barrel holder self through circular cavity, absorb or disperse the effort, and then avoid the conductor unit to receive tensile stress too big and damage, prolong the life of cable to a certain extent.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of an installation structure of a conductor unit and a support bobbin bracket according to an embodiment of the present invention;

FIG. 3 is a schematic view of a partial connection structure of a support frame according to an embodiment of the present invention;

fig. 4 is an axial view structural diagram of a supporting barrel frame according to an embodiment of the utility model.

Detailed Description

In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the utility model. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways using a flexible cable, as the disclosed concepts and embodiments are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.

Because the anti-interference performance of the current computer cable is enhanced in structural design, the shielding effect is more emphasized, the mechanical strength of the cable is weak, the cable is not tensile, when the cable is laid, the cable needs to be pulled and pulled, and the cable needs to be bent and bundled at a small angle in a narrow installation space, the cable is possibly over-stretched or extruded in the laying process, so that cracks appear on a cable conductor, the current streaming concentration and skin effect of current are caused, the current density and the resistance at the crack tip are locally increased, the effect can strengthen heating in a small range at the crack tip, and potential safety hazards are brought.

Referring to fig. 1-4, the present invention provides a flexible cable for computers, which is applied to the inside of a substation or a cabinet room, and the cable mainly includes a conductor unit 1, a support bobbin bracket 2, a tape layer 3, a shielding layer 4, and an outer sheath 5.

The conductor unit 1 comprises two conductor core groups 11 formed by mutually twisting a plurality of conductor cores, the insulating layers 12 are respectively coated on the outer walls of the conductor core groups 11 to form two conductors, and the two conductors are arranged in a pairwise tangential manner and are wound into an oval section together with filling ropes 13 distributed on the outer sides of the conductors by polyester tapes 14.

In an optional embodiment, the conductor core group 11 is formed by twisting a plurality of pure oxygen-free copper superfine copper wires, the oxygen-free copper superfine copper wires are high in flexibility and good in bending resistance, and the manufactured conductor core group 11 has good flexibility and bending resistance.

Furthermore, the insulating layer 12 sequentially wraps the conductor shielding layer, the insulating layer 12 and the insulating shielding layer from inside to outside in a three-layer co-extrusion mode, the insulating layer 12 is made of a crosslinked polyethylene insulating material and has unique insulating characteristics, excellent mechanical properties and heat resistance, the conductor shielding layer and the insulating shielding layer are both made of ultra-clean semi-conductive shielding materials, current can be effectively led out, the cable insulation material also has ultra-smooth surface characteristics, the performance is stable, a good uniform electric field effect can be achieved, space charge accumulation in the cable insulation material is inhibited, the conductivity of the cable insulation material is reduced, and a good shielding effect is achieved.

Furthermore, the filling rope 13 is made of reinforced tensile fiber rope, and is wrapped around the outer wall of the conductor by the polyester belt 14 to form the conductor unit 1,

thus, the conductor unit 1 as a whole has good tensile resistance and flexibility.

Referring to fig. 2 and 3, the supporting bobbin bracket 2 is provided with a plurality of supporting bobbin bracket 2 along the axial direction of the cable, the supporting bobbin bracket 2 is connected by the connecting rope 23 to form a fishbone shape, the supporting bobbin bracket 2 is provided with four oval cavities 201 for installing the conductor units 1 in an axisymmetric manner, and the conductor units 1 are provided with four conductor units and are correspondingly arranged in the four oval cavities 201 of the supporting bobbin bracket 2.

The supporting barrel frame 2 is made of mixed high-flexibility butadiene-acrylonitrile rubber, and has good tensile resistance and bending resistance.

Further, the support bobbin cradle 2 that a plurality of is established ties is the fishbone form and arranges the distribution, can excessively not extrude inside conductor unit 1 when making the cable crooked, has the clearance between per two support bobbin cradles 2 to when making the cable buckle, have the space of buckling, avoid buckling because of the transition of cable and leading to the inside cable core of cable to appear buckling the fracture, the ellipse holds the oval internal diameter that holds chamber 201 and is greater than conductor unit 1's oval external diameter, so that the ellipse of putting into that conductor unit 1 can be smooth holds the intracavity 201.

Further, the support frame 2 has a circular cavity 202 at an inner middle position.

So, when receiving outside extrusion effort, give support creel 2 and the 1 extrusion space of inner conductor unit through circular cavity 202, when the cable received the radial extrusion of outside effort, support creel 2 itself can be through compressing circular cavity 202 towards inside shrink for the extrusion force or the power that support creel 2 received can be turned into the partial deformation that supports creel 2 self through circular cavity 202, absorb or the dispersion effort, and then avoid conductor unit 1 to receive tensile stress too big and damage.

Referring to fig. 2 and 4, in order to connect a plurality of support frames 2 in series, a through hole 203 for passing the connection rope 23 is formed between each two oval cavities 201.

Further, in order to enable the cable to have high tensile strength, fatigue resistance and impact toughness, the connecting rope 23 penetrates through the through holes 203 of the plurality of supporting barrel frames 2 to realize series connection of the plurality of supporting barrel frames 2, and the connecting rope 23 is made of a multi-strand twisted steel wire rope.

In a preferred embodiment, the connecting rope 23 may also be a nylon fiber rope in order to provide the cable with high tensile strength and fatigue resistance and to ensure the flexibility of the cable.

In the preferred embodimentIn order to place the conductor unit 1 in the oval chamber 201, four support frames 2 are fixed on the outsideGroup ofThe elastic comb teeth 21 are arranged in the middle positions of the four elliptical cavities 201, the elastic comb teeth 21 are formed by a plurality of comb teeth in a staggered distribution combination mode, gaps are formed among the comb teeth on two sides, so that the conductor unit 1 can be placed into the elliptical cavities 201 by pressing and expanding the elastic comb teeth 21, the elastic comb teeth 21 and the support barrel frame 2 are integrally formed, and after the conductor unit 1 is placed into the elliptical cavities 201, the elastic comb teeth 21 can be restored to an initial state.

As shown in fig. 2, further, in order to prevent the cable from being aged too early in a high temperature environment, a heat dissipation layer 22 is disposed between the conductor unit 1 and the oval cavity 201.

In an optional embodiment, after the conductor unit 1 is placed in the elliptical cavity 201, a proper amount of heat dissipation filler is filled in the elliptical cavity 201 to form the heat dissipation layer 22, the heat dissipation filler is a high-thermal-conductivity backfill material prepared from slag stone, calcium oxide, polyvinyl acetate adhesive, water and sodium silicate, and the conductor unit has the technical characteristics of good initial fluidity, moderate alkalinity, low bleeding rate and the like before solidification. The solidified cable is coated on the outer wall of the conductor unit 1, and has the advantages of high water content and high stability, lower thermal resistance can be kept around the cable for a long time, the thermal resistance is smaller than that of soil, and the heat dissipation performance is good, so that the current-carrying star of the cable is improved or the operating temperature of the conductor unit 1 is reduced, the hardness is higher, the conductor unit 1 is fixed in the oval containing cavity 201 more stably, the limiting and protecting effects are achieved on the fixation of the conductor unit 1 in the oval containing cavity 201, the conductor unit 1 is not easy to be loosened by external force, bending and extrusion, meanwhile, the cable is prevented from being aged too early in a high-temperature environment, and the service life of the cable is prolonged.

As shown in the figure 1, the belting layer 3 is transversely wrapped around the outer wall of the support barrel frame 2.

Further, band layer 3 is by polypropylene materials foaming, and inside a plurality of bubbles that form, band hardness reduce, makes the cable more soft, bends easily, when the cable receives the extrusion, plays stress cushioning effect, so, can protect the conductor from destroying. And the dielectric constant of the wrapping layer 3 formed by foaming the polypropylene material is low, which is beneficial to reducing the impedance of the cable and the loss of signals and improving the signal transmission quality of the cable.

In order to reduce the communication influence of the external electromagnetic field on the cable, as shown in fig. 1, the shielding layer 4 is coated on the outer wall of the wrapping tape layer 3.

Furthermore, in order to prevent current from leaking along the radial direction and ensure the use safety, the shielding layer 4 is formed by weaving a plurality of layers of tinned soft copper wires, has good electrical insulation performance and heat resistance and certain mechanical strength, has a shielding effect of 100 percent, and has no change in shielding characteristics when bent.

As shown in fig. 1, the outer sheath 5 is extruded on the outer wall of the shielding layer 4.

Further, the outer sheath 5 is made of mixed high-flexibility butadiene-acrylonitrile rubber, has excellent tensile property and puncture resistance, higher tensile strength and excellent wear resistance, and also has high flexibility and bending resistance.

In a preferred embodiment, the outer wall of the outer sheath 5 is coated with a protective layer 6.

Further, the protective layer 6 is formed by coating teflon, and the teflon coating has excellent chemical corrosion resistance, insulating property, fire resistance and waterproofness. Thus, the coating on the surface of the outer sheath 5 plays an excellent moisture-proof protection role for the outer sheath 5.

In combination with the above embodiments, the present invention is provided with a plurality of supporting cylinder frames 2 connected by a connecting rope 23 and used for installing the conductor unit 1, the conductor unit 1 is placed in the elliptical cavity 201 of the supporting cylinder frame 2 through the elastic comb teeth 21, the supporting cylinder frames 2 are connected by the connecting rope 23 to be in a fishbone shape, a gap is formed between every two supporting cylinder frames 2, so that the cable has a bending space when the cable is bent, the inner center position of the supporting cylinder frame 2 is a circular cavity 202, when the cable is radially extruded by an external acting force, the supporting cylinder frame 2 itself can be contracted towards the inside by compressing the circular cavity 202, so that the extrusion force or force applied to the supporting cylinder frame 2 can be converted into partial deformation of the supporting cylinder frame 2 itself through the circular cavity 202, the acting force is absorbed or dispersed, and further the conductor unit 1 is prevented from being damaged due to overlarge tensile stress.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A flexible cable for a computer, comprising:

four conductor units;

a support member for mounting and protecting the conductor unit;

2. The flexible cable for computer according to claim 1, wherein the conductor unit comprises two conductor core groups formed by twisting a plurality of conductor cores with each other, the outer wall of the conductor core group is coated with an insulating layer to form conductors, and two of the conductors are arranged tangentially in pairs and wound by a polyester tape to have an oval cross-section together with a filling cord distributed at the outer side thereof.

3. The flexible cable for computers according to claim 1, wherein elastic comb teeth are fixedly arranged on the support barrel frame corresponding to each oval cavity.

4. The flexible cable for computer as claimed in claim 1, wherein a heat dissipation layer is disposed between the conductor unit and the oval cavity, and the thickness of the heat dissipation layer is 0.3-0.5 mm.

5. The flexible cable for computer as claimed in claim 1, wherein the connecting cord is a multi-stranded twisted steel cord.

6. The flexible cable for computer as claimed in claim 1, wherein the support cradle has a circular cavity at an intermediate position inside the support cradle.

7. The flexible cable for computers according to claim 1, wherein a through hole for passing a connecting rope is formed between each two of the oval cavities.

8. The flexible cable for computer as claimed in any one of claims 1 to 7, wherein the outer wall of the outer sheath is coated with a protective layer having a thickness of 0.5 to 0.8 mm.