CN215451020U - Computer cable with excellent shielding effect - Google Patents

Abstract

The utility model relates to the technical field of cables, in particular to a computer cable with excellent shielding effect, which comprises: a cable core elastic support; the cable core elastic support is provided with a cross-shaped buffer frame in the direction which is not around the cable core elastic support, four ends of the cross-shaped buffer frame are integrally formed with fan-shaped parts, the four fan-shaped parts surround to form a circular ring, and four relatively closed fan-shaped cavities are surrounded between the cross-shaped buffer frame and the four fan-shaped parts; when the cable laying, the cross buffer frame of the cotton material of EMI electrically conductive bubble can be out of shape wantonly, can not lead to the fact the influence to the whole flexibility of cable, and simultaneously, the closed fan-shaped chamber that cross buffer frame and four fan-shaped portions enclose carries out the electromagnetic shield to four electrically conductive units, prevents that four electrically conductive units from receiving electromagnetic interference, and because the cross buffer frame elasticity of the cotton material of EMI electrically conductive bubble is better, when receiving the extrusion, difficult emergence damage, cross buffer frame and fan-shaped portion after the shrink still have good electromagnetic shield effect.

Description

Computer cable with excellent shielding effect

Technical Field

The utility model relates to the technical field of cables, in particular to a computer cable with excellent shielding effect.

Background

The computer cable belongs to the weak current cable for electric equipment, in particular to a flexible control cable, which is suitable for electronic computers and automatic instruments with higher requirement on interference resistance.

The existing computer cable adopts a mode of partial shielding, total shielding and partial shielding plus total shielding to shield electromagnetic signals, a corresponding shielding mode is selected according to the application environment of the cable, a metal belt or a metal net is specifically adopted, in order to achieve a corresponding shielding effect, multiple layers of winding or weaving are often carried out, when electromagnetic signals with larger energy are required to be shielded, the laying thickness of a shielding layer is thicker, the flexibility of the cable is seriously influenced, and the computer cable is difficult to lay.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a computer cable with excellent shielding effect, which comprises:

a cable core elastic support; the cable core elastic support is characterized in that a cross-shaped buffer frame is sleeved on the outer side wall of the cable core elastic support, four ends of the cross-shaped buffer frame are integrally formed with fan-shaped parts, the four fan-shaped parts surround to form a circular ring, and four relatively closed fan-shaped cavities are surrounded between the cross-shaped buffer frame and the four fan-shaped parts;

the four conductive units are respectively laid in the four fan-shaped cavities;

the metal belt shielding layer is wrapped on the outer side wall of the sector and used for shielding electromagnetic signals;

the outer winding cladding is wound on the outer side wall of the metal belt shielding layer;

a sheath extruded on the outer side wall of the outer winding cladding.

Preferably, two ends of each of the four fan-shaped parts are respectively provided with an external pressing part and an internal pressing part, and the external pressing parts and the internal pressing parts of the adjacent fan-shaped parts are mutually attached.

Preferably, the cross-shaped buffer frame is a conductive bracket.

Preferably, four U-shaped grooves are formed in the outer side walls of the fan-shaped parts, and drainage wires for drainage are laid in the U-shaped grooves.

Preferably, the lapping rate of the outward wrapping covering is 65% -85%.

Preferably, the conductive unit comprises a conductive wire core, a braided shielding layer, an inner wrapping layer, an insulating layer and an inner sheath which are sequentially distributed from inside to outside.

Preferably, the weaving density of the braided shielding layer is 85% -95%.

Compared with the prior art, the utility model has the advantages that:

the cross-shaped buffer frame made of the EMI conductive foam cotton can be deformed randomly when the cable is laid, the overall flexibility of the cable cannot be affected, meanwhile, the four conductive units are shielded electromagnetically by the closed fan-shaped cavity formed by the cross-shaped buffer frame and the four fan-shaped parts, the four conductive units are prevented from being interfered by electromagnetism, the cross-shaped buffer frame made of the EMI conductive foam cotton is good in elasticity and not prone to being damaged when being extruded, and the cross-shaped buffer frame and the fan-shaped parts after being contracted still have a good electromagnetic shielding effect.

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 view of a computer cable excellent in shielding effect according to the present invention;

FIG. 2 is a schematic view of a cross-shaped buffer structure of a computer cable with excellent shielding effect according to the present invention;

FIG. 3 is a schematic structural diagram of a cable core elastic support of the computer cable with excellent shielding effect according to the present invention;

fig. 4 is a schematic view of the structure of the conductive element of the computer cable with excellent shielding effect according to 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 a computer cable having superior shielding, as the disclosed concepts and embodiments are not limited to any embodiment. 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 current computer cable adopts the metal to shield electromagnetic signal around the mode of package, when electromagnetic signal interference intensity is great, in order to reach corresponding shielding effect, often carry out the multilayer around establishing or weaving, thereby lead to the holistic flexibility of cable to reduce by a wide margin, it is comparatively difficult when the cable bending is laid, therefore, need urgently a computer cable that shielding effect is good to answer, when increasing shielding effect, the holistic flexibility of cable is better, make the cable comparatively convenient when the bending is laid.

Referring to fig. 1, 2 and 3, the present invention provides a computer cable with excellent shielding effect, which includes a cable core elastic support 1, a cross-shaped buffer frame 2, a conductive unit 3, a metal tape shielding layer 4, an outer wrapping layer 5 and a sheath 6.

The cable core elastic support 1 is provided with a cross-shaped buffer frame 2 in the peripheral direction, four ends of the cross-shaped buffer frame 2 are integrally formed with sector parts 21 which are mutually embedded in the peripheral direction, the four sector parts 21 surround to form a circular ring, and four relatively closed sector cavities 201 are formed between the cross-shaped buffer frame 2 and the four sector parts 21.

In an optional embodiment, the cable core elastic support 1 is made of fluororubber, the cross section is cross-shaped, the fluororubber cable has good mechanical properties, the overall tensile strength of the cable can be effectively increased, and meanwhile, the fluororubber cable still has good elasticity after being used at high temperature for a long time, and the overall flexibility of the cable cannot be affected.

Further, the cross-shaped buffer frame 2 is a conductive support, which has a good electromagnetic shielding effect and electromagnetically separates the four conductive units 3.

In an optional embodiment, the cross-shaped buffer frame 2 is made of EMI conductive foam, which has a good electromagnetic shielding effect and good elasticity. Since the sectors 21 are integrally formed on the cross-shaped buffer 2, the cross-shaped buffer 2 and the sectors 21 are made of the EMI conductive foam.

In the embodiment of the utility model, optionally, the surface layer of the EMI conductive foam is a copper mesh, the inner layer is a nickel mesh, and the middle layer is a flame-retardant fiber layer, so that the thermal management and the electromagnetic shielding are realized, the working temperature range is 0-60 ℃, and the compression coefficient is less than or equal to 15%.

So, when computer cable (especially control cable), cross buffer 2 of the cotton material of EMI electrically conductive bubble can be out of shape wantonly, realize the flexible arrangement, and simultaneously, closed fan-shaped chamber 201 that cross buffer 2 and four sectors 21 enclose carries out the electromagnetic shield to four electrically conductive unit 3, prevent that four electrically conductive unit 3 from receiving electromagnetic interference, and because cross buffer 2 elasticity of the cotton material of EMI electrically conductive bubble is better, when receiving the extrusion, difficult emergence damage, cross buffer 2 and sector 21 after the shrink still have good electromagnetic shield effect.

Further, the outer pressure part 22 and the inner pressure part 23 are respectively arranged at two ends of the four fan-shaped parts 21, and the outer pressure part 22 and the inner pressure part 23 of the adjacent fan-shaped parts 21 are mutually attached.

In an alternative embodiment, the external pressure part 22 and the internal pressure part 23 are integrally formed on the sector 21, the external pressure part 22 and the internal pressure part 23 are made of EMI conductive foam, and the external pressure part 22 and the internal pressure part 23 also have good elasticity and electromagnetic shielding effect.

Thus, when the conductive unit 3 is manufactured, the conductive unit can be pressed into the sector cavity 201 through the space between the external pressing part 22 and the internal pressing part 23, then the external pressing part 22 and the internal pressing part 23 are attached again, when the cable is bent, the sector part 21 at the position outside the bending part of the cable is compressed, the external pressing part 22 and the internal pressing part 23 are closely attached, a gap cannot be formed under the extrusion of the conductive unit 3, and the electromagnetic signal of the conductive unit 3 is effectively covered and shielded.

As shown in fig. 1 and 4, four conductive units 3 are laid in four sector cavities 201, respectively.

Further, the conductive unit 3 includes a conductive wire core 31, a braided shielding layer 32, an inner wrapping layer 33, an insulating layer 34 and an inner sheath 35 which are sequentially distributed from inside to outside.

In an alternative embodiment, the conductive core 31 is formed by twisting a plurality of copper wires, especially a twisted wire core with ultra-class 6 softness.

The braided shielding layer 32 is formed by weaving a galvanized round copper net with the diameter of 0.2mm, the weaving density of the braided shielding layer 32 is 85% -95%, electromagnetic radiation generated by the conductive wire core 31 can be effectively shielded, certain flexibility is considered, and the cable flexibility is prevented from being too low.

The inner wrapping layer 33 is wrapped by adopting a polyester tape, and plays a role in isolating water.

The insulating layer 34 is a silicon-based rubber insulating layer, which has excellent insulation and flexibility and is beneficial to the arrangement of control cables.

Inner sheath 35 adopts the silicon rubber material, and it has good elasticity, and heat resistance and cold resistance are better, and long-term use still has elasticity under high temperature for the whole flexibility of cable is better.

As shown in fig. 1, the metal shielding layer 4 wraps around the outer side wall of the sector 21 to enhance electromagnetic signal shielding.

Further, the outer side walls of the four fan-shaped parts 21 are provided with U-shaped grooves 202, and drainage wires 41 for drainage are laid in the U-shaped grooves 202.

In optional embodiment, the metal tape shielding layer 4 adopts the copper strips that thickness is 0.2mm to wrap, and is 35% around the package overlap ratio, can effectively shield the electromagnetic radiation that four conductive element 3 produced, takes into account certain flexibility simultaneously, prevents that the cable flexibility from crossing lowly, and the drainage wire 41 of laying in the U-shaped groove 202 adopts the diameter to be 0.5's galvanized round copper line, ensures shielded electric continuity.

Further, the outer winding cladding 5 is wrapped on the outer side wall of the metal belt shielding layer 4, and the wrapping covering rate of the outer winding cladding 5 is 65% -85%.

In an alternative embodiment, the outer wrapping 5 is wrapped with polyester tape.

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 (9)

1. A computer cable having excellent shielding effect, comprising:

the cable core elastic support is provided with a cross-shaped buffer frame in the direction which is not around the cable core elastic support, four ends of the cross-shaped buffer frame are integrally formed with fan-shaped parts, the four fan-shaped parts surround to form a ring, and four relatively closed fan-shaped cavities are surrounded between the cross-shaped buffer frame and the four fan-shaped parts;

the four conductive units are respectively laid in the four fan-shaped cavities;

the metal belt shielding layer is wrapped on the outer side wall of the sector;

the outer winding cladding is wound on the outer side wall of the metal belt shielding layer;

a sheath extruded on the outer side wall of the outer winding cladding.

2. The computer cable excellent in shielding effect according to claim 1, wherein an outer pressing portion and an inner pressing portion are provided at both ends of the four sectors, respectively, and the outer pressing portion and the inner pressing portion of the adjacent sectors are attached to each other.

3. The computer cable with excellent shielding effect according to claim 1, wherein the cross-shaped buffer frame is an EMI conductive foam bracket.

4. The computer cable with excellent shielding effect according to claim 1, wherein the four outer side walls of the fan-shaped portions are provided with U-shaped grooves, and drainage wires for drainage are laid in the U-shaped grooves.

5. The computer cable with excellent shielding effect according to claim 1, wherein the lapping rate of the outer wrapping layer is 65% to 85%.

6. The computer cable with excellent shielding effect according to any one of claims 1 to 5, wherein the conductive unit comprises a conductive wire core, a braided shielding layer, an inner wrapping layer, an insulating layer and an inner sheath which are sequentially distributed from inside to outside.

7. The computer cable with excellent shielding effect according to claim 6, wherein the braided shielding layer is braided by a galvanized round copper mesh, and the braiding density is 85-95%.

8. The computer cable with excellent shielding effect as claimed in claim 6, wherein the inner wrapping layer is a polyester tape wrapping layer.

9. The computer cable with excellent shielding effect according to claim 6, wherein the insulating layer is a silicone rubber insulating layer.

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