CN214476483U - Flexible high-temperature computer cable - Google Patents

Abstract

The utility model relates to the technical field of cables, particularly, relate to flexible high temperature resistant computer cable, include: a conductor assembly for power transmission; the total wrapping layer is wound outside the conductor assembly, and a filling layer is filled between the total wrapping layer and the conductor assembly; the total shielding layer is arranged outside the total wrapping layer; the outer sheath is sleeved outside the total shielding layer; a heat insulation layer is arranged between the main shielding layer and the outer sheath, and a nylon woven net layer is embedded and fixed in the outer sheath; through being equipped with the insulating layer, can play partial thermal-insulated effect, still avoid total shielding layer and oversheath to repeat frictional contact, cause the oversheath wearing and tearing, especially set up the recess at the inner wall of oversheath, provide the elastic compensation of oversheath when crooked to reduce the tensile stress of oversheath bending process, reduce the fatigue degree of oversheath under the bending state, thereby prolong the life of oversheath.

Description

Flexible high-temperature computer cable

Technical Field

The utility model relates to a computer cable technical field particularly relates to flexible high temperature computer cable.

Background

The flexible cable is the first choice cable of power transmission material, signal transmission carrier in the drag chain motion system, and the computer cable belongs to cable for the electrical equipment, is used for computer and instrument automated control technology more, and the cable that requires the transmission signal can operate under the condition of circulation chain commentaries on classics, reciprocal dragging, in order to reduce mutual crosstalk and external disturbance between the return circuit, the computer cable need adopt shielding structure, and shielding structure adopts tin-plated or non-tin-plated copper material to set up in conductor and insulating cladding material with the way of lapping or weaving generally.

However, when the cable is repeatedly bent under the driving of the drag chain, the sheath on the outer layer is softer than the metal shielding layer on the inner layer, so that the metal shielding layer on the inner layer can rub against the outer sheath during bending, cracks are formed on the surface of the outer sheath, and the cable skin is easily damaged and cracked after the cable is repeatedly bent in the drag chain for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible high temperature computer cable, include: a conductor assembly for power transmission; the total wrapping layer is wound outside the conductor assembly, and a filling layer is filled between the total wrapping layer and the conductor assembly; the total shielding layer is arranged outside the total wrapping layer; the outer sheath is sleeved outside the total shielding layer; a nylon mesh layer is fixedly embedded in the outer sheath, a plurality of grooves which are distributed at equal intervals along the length direction are formed in the inner side wall of the outer sheath and used for providing a bending deformation space of the outer sheath, the nylon mesh layer is located at 1/3 of the outer sheath along the thickness from outside to inside, and the groove bottoms of the grooves are located at 2/3 of the outer sheath along the thickness from outside to inside; and a heat insulation layer is arranged between the total shielding layer and the outer sheath, and the heat insulation layer is wound and fixed outside the total shielding layer so as to avoid direct contact between the total shielding layer and the outer sheath.

Further, the grooves are annularly distributed on the inner wall of the outer sheath.

Further, the grooves are spirally distributed on the inner wall of the outer sheath.

Further, the inclination angle of the groove is 60-85 degrees by taking the axis of the cable as a reference.

Furthermore, the outer side wall of the heat insulation layer is provided with bulges which are uniformly distributed along the length direction.

Further, the bulges are annularly or spirally distributed on the outer side wall of the heat insulation layer.

Further, when the outer sheath reaches the minimum bending radius, the groove at the outer arc bending part of the cable is in a closed state, and two adjacent protrusions at the inner arc bending part of the cable are attached to each other.

Furthermore, the conductor assembly comprises a plurality of copper conductive cores twisted and wound with each other, and a sub-winding cladding and a sub-shielding layer which are arranged outside the copper conductive cores, wherein the sub-winding cladding is wound on the outer wall of the copper conductive cores, and the sub-shielding layer is coated on the outer wall of the sub-winding cladding.

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 the 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 diagram of an exemplary embodiment of a flexible high temperature computer cable of the present invention.

Fig. 2 is a schematic diagram of a hierarchical exemplary embodiment of the flexible high temperature computer cable of the present invention.

Fig. 3 is a schematic view of a partially enlarged exemplary embodiment of the outer jacket and the insulation layer of the present invention.

Fig. 4 is a schematic view of an exemplary embodiment of the partially bent state of fig. 3.

The various reference numbers in the drawings have the following meanings:

10. a conductor assembly; 1. a copper conductive core; 2. separately winding the cladding; 3. dividing a shielding layer; 4. a filling layer; 5. a total wrapping layer; 6. a total shielding layer; 7. a thermal insulation layer; 71. a protrusion; 8. an outer sheath; 801. a groove; 9. a nylon mesh layer;

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with 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 invention. 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 any flexible high temperature computer cable, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

With reference to the examples shown in fig. 1-4, it is intended to protect the outer sheath 8, so that the service life of the outer sheath 8 can be prolonged under the repeated bending condition of the drag chain system, in order to achieve the above object, the utility model provides a flexible high-temperature computer cable, through being equipped with the insulating layer 7 between the total shielding layer 6 and the outer sheath 8, can play partial thermal insulation effect on the one hand, still avoid the total shielding layer 6 and the outer sheath 8 of metal to repeat the frictional contact, cause the outer sheath 8 to wear and tear, especially the inner wall of the outer sheath 8 sets up the groove 801, provide the elasticity compensation of the outer sheath 8 when bending, so as to reduce the tensile stress of the outer sheath 8 in the bending process, reduce the fatigue degree of the outer sheath 8 under the bending state, thereby prolong the service life of the outer sheath 8.

With reference to fig. 1 and 2, the present invention provides a flexible high-temperature computer cable, especially a computer cable applied in an automatic device (e.g. a laser cutting machine or a welding device) in a high-temperature environment, which is integrated in a drag chain to realize signal connection between a controlled device and a computer. The flexible high-temperature computer cable mainly comprises a conductor assembly 10, a general wrapping layer 5 and an outer sheath 8.

Further, the conductor assembly 10 includes a plurality of copper conducting cores 1 twisted and wound with each other, and a sub-winding cladding 2 and a sub-shielding layer 3 disposed outside the copper conducting core 1, wherein the sub-winding cladding 2 is wound on the outer wall of the copper conducting core 1, and the sub-shielding layer 3 is coated on the outer wall of the sub-winding cladding 2.

Copper conductor core 1 is the resistant wire of buckling who uses in the tow chain system among the prior art, can adopt the mild copper wire, and a plurality of copper conductor cores are laminated each other between 1, divide around covering 2 can adopt around the package polyester area, around establishing in the outside of copper conductor core 1, divide shielding layer 3 can adopt tinned wire or non-tinned wire, adopt to weave the production mode, weave the coverage and be not less than 90%, conductor assembly 10 wholly is used for transmitting electric power or signal of telecommunication.

In alternative embodiments, the filling layer 4 may be a PP rope or a hemp rope, and fills the gap between the conductor assemblies 10 to ensure the surface of the cable is round, so as to avoid the cable surface from appearing a twist shape when extruding the sheath.

The total winding layer 5 can adopt a winding material applied in the prior art, an aluminum foil or polyvinyl fluoride cable winding belt has the advantages of low dielectric loss, small influence caused by temperature and signal frequency change, stable dielectric constant and excellent temperature resistance, the total shielding layer 6 can adopt a tinned or non-tinned copper wire, a weaving production mode is adopted, the weaving coverage rate is not less than 90%, and a signal shielding effect is achieved.

As shown in fig. 1 to 4, a heat insulation layer 7 is disposed between the total shielding layer 6 and the outer sheath 8, the heat insulation layer 7 is wound and fixed outside the total shielding layer 6 to prevent the total shielding layer 6 from directly contacting the outer sheath 8, and a nylon mesh layer 9 is embedded and fixed inside the outer sheath 8.

In an alternative embodiment, the insulating layer 7 is preferably a flexible insulating layer 7, for example made of glass wool, which has good thermal insulation, is flame retardant, and is relatively flexible, able to maintain its form in the event of repeated bending over a long period of time.

Further, the outer side wall of the heat insulation layer 7 is provided with protrusions 71 which are uniformly distributed along the length direction, and the protrusions 71 are silicon rubber strips and fixed outside the heat insulation layer 7.

In an alternative embodiment, the outer sheath 8 may be made of fluoroplastic or silicone rubber, and has a good high temperature resistance, and a plurality of grooves 801 equidistantly distributed along the length direction and gaps formed between the protrusions 71 are formed on the inner side wall of the outer sheath 8 to provide a bending deformation space for the outer sheath 8.

Thus, when the outer sheath 8 is bent and deformed, the grooves 801 and the protrusions 71 provide deformation generated by bending deformation to reduce the tensile stress of the outer sheath 8, so that the service life of the outer sheath 8 is prolonged, the nylon mesh layer 9 is embedded and fixed in the outer sheath 8, the nylon mesh layer 9 is located at 1/3 of the outer sheath 8 in the thickness from outside to inside direction, and the groove bottoms of the grooves 801 are located at 2/3 of the outer sheath 8 in the thickness from outside to inside direction; the nylon fiber has good tensile resistance, and the arrangement of the distribution positions of the nylon woven mesh layer 9 and the grooves 801 enhances the fatigue resistance of the outer sheath 8 under the repeated bending condition.

Further, the grooves 801 are annularly distributed on the inner wall of the outer sheath 8, the outer sheath 8 is easier to bend and is more flexible due to the annularly distributed grooves 801, and when the outer sheath 8 is bent, the spaces of the grooves 801 are compressed, so that the tensile stress on the surface of the outer sheath 8 is reduced, and the service life of the outer sheath 8 is prolonged.

In some embodiments, the grooves 801 are spirally distributed on the inner wall of the outer sheath 8, the inclination angle of the grooves 801 is 60 ° to 85 ° based on the axis of the cable, the spiral grooves 801 make the strength of the outer sheath 8 in the axial direction higher than the annularly distributed grooves 801, and when the outer sheath 8 is bent, the space of the grooves 801 is compressed, so that the tensile stress on the surface of the outer sheath 8 is reduced, and the service life of the outer sheath 8 is prolonged.

Furthermore, the bulges 71 are annularly or spirally distributed on the outer side wall of the heat insulation layer 7, and the gaps formed among the bulges 71 can provide deformation quantity generated by bending deformation when the outer sheath 8 is bent, so that the tensile stress of the outer sheath 8 is reduced, and the service life of the outer sheath 8 is prolonged.

In some embodiments, when the outer sheath 8 reaches the minimum bending radius, the groove 801 at the outer arc bending part of the cable is in a closed state or an approximately closed state, and two adjacent protrusions 71 at the inner arc bending part of the cable are attached to each other, so that when the outer sheath 8 reaches the minimum bending radius, the density of the groove 801 and the protrusions 71 just can meet the bending requirement.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims (8)

1. A flexible high temperature computer cable, comprising:

a conductor assembly for weak current power transmission;

the total wrapping layer is wound outside the conductor assembly, and a filling layer is filled between the total wrapping layer and the conductor assembly;

the total shielding layer is arranged outside the total wrapping layer;

the outer sheath is sleeved outside the total shielding layer;

the nylon mesh layer is embedded and fixed in the outer sheath, a plurality of grooves which are distributed equidistantly along the length direction are formed in the inner side wall of the outer sheath and used for providing a bending deformation space of the outer sheath, the nylon mesh layer is located at 1/3 of the outer sheath along the thickness from outside to inside, and the groove bottoms of the grooves are located at 2/3 of the outer sheath along the thickness from outside to inside; and is

The heat insulation layer is arranged between the total shielding layer and the outer sheath, and the heat insulation layer is wound and fixed outside the total shielding layer so as to avoid direct contact between the total shielding layer and the outer sheath.

2. The flexible high temperature computer cable of claim 1, wherein the groove is annular, and wherein the groove at the outer arc bend of the cable is in a closed position when the outer jacket reaches a minimum bend radius.

3. The flexible high temperature computer cable of claim 1, wherein the groove is helical, and wherein the groove at the outer arc bend of the cable is in a closed position when the outer jacket reaches a minimum bend radius.

4. The flexible high temperature computer cable of claim 3, wherein the groove has an angle of inclination of 60 ° to 85 ° with respect to the cable axis.

5. The flexible high-temperature computer cable according to claim 1, wherein the outer side wall of the heat insulating layer is provided with protrusions uniformly distributed along the length direction, and when the outer sheath reaches a minimum bending radius, two adjacent protrusions at the inner arc bending part of the cable are attached to each other.

6. The flexible high temperature computer cable of claim 5, wherein the protrusions are annularly or helically distributed on an outer sidewall of the insulation layer.

7. The flexible high temperature computer cable of claim 1, wherein the conductor assembly comprises a plurality of copper conductive cores twisted with each other, and a partial winding cladding and a partial shielding layer disposed outside the copper conductive cores, wherein the partial winding cladding is wound around an outer wall of the copper conductive core, and the partial shielding layer is wrapped around an outer wall of the partial winding cladding.

8. The flexible high temperature computer cable of claim 1, wherein the total shielding layer is a braided tin-plated or non-tin-plated copper wire.

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