CN215451014U

CN215451014U - Flexible cable for computer

Info

Publication number: CN215451014U
Application number: CN202121877490.5U
Authority: CN
Inventors: 何泽球; 周杏芬; 张斌; 周君; 刘喜
Original assignee: Wuxi Linde Cable Co ltd
Current assignee: Wuxi Linde Cable Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-01-07
Anticipated expiration: 2031-08-12

Abstract

The utility model relates to the technical field of wires and cables, in particular to a flexible cable for a computer, which comprises a conductor unit and a shielding layer wrapped on the outer wall of the conductor unit; be equipped with the crowded supporting layer of wrapping of spiral and crowded package at the resilient cushion of supporting layer outer wall in the shielding layer outside of cable, the supporting layer adopts the metal alloy material, the crowded package of supporting layer outer wall has the resilient cushion of rubber material, the supporting layer of metal alloy material, hardness is high, good radial supporting effect has, the resilient cushion of rubber material has good elastic deformation nature, when receiving exogenic action, resilient cushion can produce deformation, absorb or the effort that the dispersion produced, the combination has the supporting layer of radial supporting action, can prevent that external effort from damaging the conductor core, improve cable resistance, the supporting layer structure of the crowded package of spiral does not influence the bending property of cable, make the cable still have good pliability.

Description

Flexible cable for computer

Technical Field

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

Background

The computer cable belongs to common cable for electric equipment, and is suitable for electronic computer and automatic instrument with rated voltage of 500V or below and high interference preventing requirement for transmitting electric energy and controlling signal.

The flexibility and the compressive property of the computer cable directly influence the service life of the cable, and for the cable with poor compressive property, accidents such as cable fracture and the like can be caused by excessive torsion and pressure of a working place, the flexibility of the cable is poor, the cable core breakage can be caused by excessive torsional 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: the three conductors are arranged in a pairwise tangential manner and wound together with filling layers distributed on the outer sides of the conductors by a wrapping layer to form conductor units with circular sections; the shielding layer is wrapped on the outer wall of the conductor unit; the flame-retardant layer is wrapped on the outer wall of the shielding layer; a support layer for providing radial support to the cable; an elastic buffer layer for absorbing an external force; the waterproof layer and the outer sheath are sequentially coated on the outer side of the elastic buffer layer from inside to outside;

wherein the supporting layer is spirally extruded on the outer wall of the flame-retardant layer; the elastic buffer layer is extruded on the outer wall of the supporting layer, so that the cable cannot be broken and damaged due to external acting force caused by excessive softness and lacking of rigidity.

Further, the shielding layer comprises a copper wire braided shielding layer.

Further, the flame retardant layer includes a mica tape layer.

Further, the support layer includes a metal alloy layer.

Further, the elastic buffer layer comprises a rubber layer.

Further, the water-blocking layer comprises a water-blocking cable paste layer.

Further, the outer sheath comprises a PVC or silicone rubber sheath.

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

be equipped with the crowded supporting layer of wrapping of spiral and crowded package at the resilient cushion of supporting layer outer wall in the shielding layer outside of cable, the supporting layer adopts the metal alloy material, the crowded package of supporting layer outer wall has the resilient cushion of rubber material, the supporting layer of metal alloy material, hardness is high, good radial supporting effect has, the resilient cushion of rubber material has good elastic deformation nature, when receiving exogenic action, resilient cushion can produce deformation, absorb or the effort that the dispersion produced, the combination has the supporting layer of radial supporting action, can prevent that external pressure effort from damaging the conductor core, improve cable compressive property, the crowded supporting layer structure of wrapping of spiral does not influence the bending property of cable, make the cable still have good pliability.

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 a flexible cable for a computer according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional elevational view of an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional front view of a conductor unit according to an embodiment of the present invention;

fig. 4 is a partially enlarged structural view of a flame retardant layer and a support layer according to an embodiment of the present invention.

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, as the disclosed concepts and embodiments are not limited to any one 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.

The flexible needs of present computer cable are all made by flexible material by interior conductor core to outer oversheath in order to satisfy flexible needs, and holistic cable structure has satisfied the flexible needs of cable, but compressive property is poor, leads to the cable to receive the torsion of operation, especially at assembly process and line processing procedure, leads to the cable inner core fracture easily to influence signal and power transmission effect. In the prior art, in order to improve the torsion resistance, a thicker hard outer protective layer and a thicker braided layer are used outside the cable, so that the sheath strength of the cable is improved, but the measures change the cable to be extremely thick and hard to a great extent, and are very unfavorable for routing and assembling treatment.

The present invention is directed to solve the above technical problems, and provides a flexible cable for computers, which is composed of a conductor unit 1, a shielding layer 2, a flame retardant layer 3, a support layer 4, an elastic buffer layer 5, a water-resistant layer 6, and an outer sheath 7, in combination with the embodiments shown in fig. 1 to 4.

The conductor unit 1 comprises three conductor core groups 11 formed by twisting a plurality of copper conductor cores, the outer walls of the conductor core groups 11 are extruded with insulating layers 12 to form three conductors with circular cross sections, and the three conductors are arranged in a pairwise tangent mode and are wound around a wrapping layer 14 together with a filling layer 13 distributed on the outer side of the three conductors to form a circular cross section.

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.

Further, the insulating layer 12 is made of cross-linked polyethylene insulating material, which has unique insulating characteristics, excellent mechanical properties and heat resistance.

Furthermore, the filling layer 13 is made of glass fiber ropes, so that the wrapped cable core is round.

Wherein, the wrapping layer 14 adopts a polyester tape wrapping layer, and the thickness is 0.5-1 mm.

Referring to fig. 1 and 2, in order to reduce the influence of an external electromagnetic field on a power supply or a communication line, a shielding layer 2 is wrapped around the outer wall of the conductor unit 1. In an optional embodiment, the shielding layer 2 is a copper wire braided shielding layer, a combined filament film is formed by combining copper wires with the diameter of 0.07mm, then a 16-or 24-spindle braiding machine is adopted to perform cross braiding on the combined filament film at a density of not less than 90% (braiding density is 90% -94%) on the outer side of the wrapped conductor core group 1 to form a braided layer 4, the braiding angle is 45 degrees, and good uniform electric field and shielding effects are achieved.

The outer wall of the shielding layer 2 is wrapped with a flame-retardant layer 3.

In a preferred embodiment, the flame retardant layer 3 is a layer of mica tape, having a thickness of 0.5-0.8 mm. The mica tape is a gold mica tape, has the characteristics of good fire resistance, high temperature resistance (capable of resisting 800 ℃ of high temperature) and acid and alkali resistance, and has good flexibility and tensile strength, the high temperature generated when the shielding layer 2 is wrapped on the outer wall of the shielding layer can be isolated, the overall flexibility and bending performance of the cable are not affected, and meanwhile, the cable has certain flame retardant property, and the requirement of fire resistance and flame retardance can be met even if the cable is used in an ultra-high-speed computer system, a machine room, a server and a power battery.

Because the current computer cable adopts flexible materials to meet the flexible requirement, the manufactured cable has the defect of insufficient rigidity, and the compression resistance and the deformation performance are poor, so that when the cable is subjected to external pressure, the inner core of the cable is easy to break, and the signal and power transmission effect is influenced. As shown in fig. 1, 2 and 4, in order to enhance the compression resistance of the cable, so that the cable is not broken and damaged by external force due to too soft and lacking rigidity, the outer side of the flame retardant layer is coated with a support layer 4 for providing radial support to the cable and an elastic buffer layer 5 for absorbing the external force.

Wherein, the supporting layer 4 is a spiral aluminum alloy layer of a spirally extruded thin layer, such as 5000 series aluminum alloy material, which has strong toughness and good bending property, when in extrusion, an aluminum ingot is adopted to pass through an aluminum press production device, so that the metal alloy is continuously extruded on the shielding layer 2 in a semi-molten state, the extrusion temperature is up to 400 ℃, and the metal alloy is spirally extruded on the outer wall of the flame retardant layer 3 to form a spiral spring type structure, and the thickness of the spiral spring type structure is 0.4-0.8mm, preferably 0.5 m.

So, the setting of supporting layer 4 can not influence the crooked compliance of cable, and radial support bears the weight of well simultaneously, makes the cable have the rigidity, can improve the holistic compressive property of cable to make the cable can not be because of too soft disappearance rigidity receiving outside effort and producing the fracture damage.

As shown in fig. 1 and 2, the outer wall of the supporting layer 4 is extruded with an elastic buffer layer 5.

Specifically, the elastic buffer layer 5 is a rubber layer, and particularly preferably adopts a silicon rubber substrate, the thickness of the silicon rubber substrate is 0.5-0.6 mm, the silicon rubber substrate can generate large deformation under the action of small external force, and the elastic buffer layer can recover the original shape after the external force is removed. Therefore, the elastic buffer layer 5 is coated on the outer wall of the support layer 4, and when the cable is subjected to external impact acting force, part of the acting force generated is absorbed or dispersed through the deformation of the elastic buffer layer 5.

So, can absorb the elastic buffer layer 5 combination that external impact effort has radial supporting role's supporting layer 4, can prevent that external effort from damaging the conductor core, improves cable compressive property, and the helical structure of the supporting layer 4 of spiral crowded package does not influence the bending property of cable, makes the cable still have good pliability when having the rigidity.

As shown in the combined

drawings

1 and 2, the outer wall of the elastic buffer layer 5 is coated with a water-blocking layer 6, and the thickness of the water-blocking layer is 0.5-0.9 mm. In a preferred embodiment, the water-blocking layer 6 may be a commercially available water-blocking cable paste layer containing a water-absorbent resin which rapidly absorbs water to swell and form a gel to block the gap when moisture or water enters the cable through the outer sheath 7.

As shown in fig. 1 and 2, the outer wall of the water-resistant layer 6 is wrapped with an outer sheath 7.

In a specific embodiment, the outer sheath 7 is a PVC or silicone rubber sheath, and has good tensile properties, puncture resistance, high tensile strength, and bending resistance.

By combining the above embodiments, the supporting layer 4 spirally wrapped and the elastic buffer layer 5 wrapped on the outer wall of the supporting layer are arranged on the outer side of the shielding layer 2 of the cable, the supporting layer 4 is made of metal alloy, the elastic buffer layer 5 made of rubber is wrapped on the outer wall of the supporting layer 4 in an extruding manner, the supporting layer 4 made of metal alloy has good radial supporting effect, the elastic buffer layer 5 made of rubber has good elastic deformability, when the cable is subjected to external force, the elastic buffer layer 5 can deform to absorb or disperse the generated acting force, and by combining the supporting layer 4 with the radial supporting effect, the conductor core material can be prevented from being damaged by the external force, and the compression deformation resistance of the cable is improved.

It should be understood that the flexible cable for a computer according to the present invention may not only be used in a conventional computer, for example, a desktop computer, to achieve stable operation during routing and wire management, and may be conveniently bent or twisted, and the wire core is not easily broken, but also may be applied in a computer system in a broad sense, for example, in a currently commonly used vehicle-mounted computer system, a server system (a computer system having a memory, a network module and a memory), a vehicle-mounted power battery system (including a CPU for controlling charging and discharging of a battery), and other electric power or electric control systems having storage and calculation functions.

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:

the three conductors are arranged in a pairwise tangential manner and wound together with filling layers distributed on the outer sides of the conductors by a wrapping layer to form conductor units with circular sections;

the shielding layer is wrapped on the outer wall of the conductor unit;

the flame-retardant layer is wrapped on the outer wall of the shielding layer;

a support layer for providing radial support to the cable, forming a helical spring structure;

an elastic buffer layer for absorbing an external pressing force;

the waterproof layer and the outer sheath are sequentially coated on the outer side of the elastic buffer layer from inside to outside;

wherein the supporting layer is spirally extruded on the outer wall of the flame-retardant layer; the elastic buffer layer is extruded on the outer wall of the supporting layer, so that the cable cannot be broken and damaged due to external pressure caused by excessive softness and lack of rigidity.

2. The flexible cable for the computer according to claim 1, wherein the shielding layer is a copper wire braided shielding layer braided by using a copper wire with a diameter of 0.07mm, the braiding density is 90-94%, and the braiding angle is 45 °.

3. The flexible cable for computer use according to claim 1, wherein said flame retardant layer comprises a layer of phlogopite tape having a thickness of 0.5-0.8 mm.

4. The flexible cable for computer according to claim 1, wherein the support layer comprises a spiral aluminum alloy layer forming a spiral spring type structure, and has a thickness of 0.5 mm.

5. The flexible cable for computer as claimed in claim 1, wherein the elastic buffer layer comprises a rubber layer having a thickness of 0.5 to 0.6 mm.

6. The flexible cable for computer as claimed in claim 1, wherein the water-blocking layer comprises a water-blocking paste layer having a thickness of 0.5-0.9 mm.

7. The flexible cable for computer according to any one of claims 1 to 6, wherein the outer sheath comprises a PVC or silicone rubber sheath.