CN211150141U

CN211150141U - Shielding control cable

Info

Publication number: CN211150141U
Application number: CN201922354973.6U
Authority: CN
Inventors: 杜力永; 刘艳崇; 褚立松; 李永军
Original assignee: Hubei Shangde Jinli Wire And Cable Co ltd
Current assignee: Hubei Shangde Jinli Wire And Cable Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-07-31
Anticipated expiration: 2029-12-23

Abstract

The utility model relates to a shielding control cable, the technical field of cable has been related to, it utilizes copper line layer and aluminium foil to wind the covering at the low frequency to have solved, in the strong electromagnetic field interference region, lead to the problem of data disclosure and data distortion easily, including a plurality of protection hoses, wear to be equipped with a plurality of conductors in the protection hose, the outside insulating layer of having wound of conductor, the week side of a plurality of protection hoses is wrapped up in proper order jointly and is had around the band, the inner liner, the armor, the oversheath, the gap internal clamp between a plurality of protection hoses is equipped with cross shielding layer, it is equipped with the enhancement shielding layer to press from both sides between inner liner and the armor, be equipped with the elasticity enhancement layer between armor. The utility model discloses realize the inside and outside two-way shielding effect of cable, effectively reduced external signal to the interference of transmission signal in the conductor, can reduce the condition that transmission signal leaked in the conductor simultaneously.

Description

Shielding control cable

Technical Field

The utility model belongs to the technical field of the technique of cable and specifically relates to a shielding control cable is related to.

Background

Because the continuous rapid development of construction engineering, the performance requirements such as heat-resisting, cold-resistant, tensile, shielding to the cable are higher and higher, in power transmission, data communication field, for guaranteeing high quality data transmission, prevent the data distortion, shielded cable obtains the wide application, and shielded cable uses the netted weaving layer of metal to wrap up the transmission line that plays signal conductor, utilizes the netted weaving layer of metal to play the shielding effect.

Chinese patent with grant publication number CN202871355U proposes a shielded cable, which comprises a plurality of conductors, wherein the conductors are sequentially provided with an insulating layer, a winding layer, a copper wire layer and a protective layer, a tensile resistance device is arranged in the protective layer, a filler is arranged in the winding layer, the filler is an asbestos filler, the tensile resistance device is a steel wire, and the winding layer is an aluminum foil.

The above prior art solutions have the following drawbacks: utilize copper wire layer and aluminium foil to have better shielding effect to external high frequency electromagnetic signal around the covering, nevertheless in low frequency, strong electromagnetic field interference region, can't satisfy the normal transmission of signal, lead to data leakage and data distortion easily, cause serious accident.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, one of the purposes of the utility model is to provide a shielding control cable that interference immunity is strong, shielding performance is strong, strong adaptability.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a shielding control cable, includes a plurality of protection hoses, wear to be equipped with a plurality of conductors in the protection hose, the outside coiling of conductor has the insulating layer, and is a plurality of the week side of protection hose wraps up around band, inner liner, armor, oversheath jointly in proper order, and is a plurality of press from both sides in the gap between the protection hose and be equipped with the cross shielding layer, the cross shielding layer with form the heat dissipation space between the protection hose, the inner liner with it is equipped with the enhancement shielding layer to press from both sides between the armor, the cross shielding layer with strengthen the copper wire net that the shielding layer all adopted the beryllium copper silk to weave to form, the armor with be equipped with the elasticity enhancement layer between the oversheath.

Through adopting above-mentioned technical scheme, utilize the insulating layer, the inner liner, the armor, exhale outward the cover and play basic guard action to the conductor, utilize cross shielding layer to play the shielding effect to adjacent conductor, it absorbs external electromagnetic signal to combine to strengthen the shielding layer, realize the inside and outside two-way shielding effect of cable, external signal has effectively been reduced and has been transmitted signal's in to the conductor interference, the condition that the transmission signal leaked in the conductor can be reduced simultaneously, utilize the heat dissipation of the space conductor of being convenient for of dispelling the heat, make the in-process of conductor transmission signal, heat-conduction is stable, thereby the holistic performance of cable is more stable.

The present invention may be further configured in a preferred embodiment as: and a tin coating is coated on the surface of the crossed shielding layer.

By adopting the technical scheme, the cross shielding layer and the shielding effectiveness of the shielding net are further enhanced by utilizing the tin-plated layer, and the stability of signal shielding is ensured.

The present invention may be further configured in a preferred embodiment as: a Teflon sealing ring is sleeved outside the wrapping tape.

Through adopting above-mentioned technical scheme, utilize the teflon sealing washer to wrap tightly around the band for it is better to wrap the package effect around the band.

The present invention may be further configured in a preferred embodiment as: the wrapping tape is made of mica tapes.

By adopting the technical scheme, the mica tape has better fire-resistant and heat-resistant performances, and the integral strength of the cable is enhanced.

The present invention may be further configured in a preferred embodiment as: the elastic reinforcing layer is made of ceramic silica gel rubber materials.

Through adopting above-mentioned technical scheme, ceramic silicon rubber material self has the shielding effect, strengthens cable's shielding function, and the material of self is comparatively soft simultaneously for the pliability of cable is better, and is more durable, is suitable for more environment.

The present invention may be further configured in a preferred embodiment as: the armor layer is composed of a flexible aluminum strip pipe and a double-layer polyethylene pipe filled with carbon.

Through adopting above-mentioned technical scheme, utilize the double-deck polyethylene pipe of flexible aluminium strip pipe and filling carbon to play protection and isolation to the cable, keep apart external electromagnetic interference simultaneously.

The present invention may be further configured in a preferred embodiment as: the outer sheath is of a low-smoke halogen-free flame-retardant polyvinyl chloride extrusion structure, and the thickness of the outer sheath is 2-5 mm.

Through adopting above-mentioned technical scheme, the lag plays the guard action to inside conductor on the one hand, plays the constraint effect to the armor, and its self also has insulating ability simultaneously, uses more stably and safety.

To sum up, the utility model discloses a following at least one kind benefits technological effect:

1. the insulating layer, the inner liner, the armor layer and the outer breathing sleeve are utilized to play a basic protection role on the conductor, the structure is simple and stable, the adaptability of the cable is strong, and the application range is wide;

2. utilize the cross shielding layer to play the shielding effect to adjacent conductor, combine to strengthen the shielding layer and absorb external electromagnetic signal, realize the inside and the outside two-way shielding effect of cable, effectively reduced external signal to the interference of transmission signal in the conductor, can reduce the condition that transmission signal leaked in the conductor simultaneously, shielding effect is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals: 1. a protective hose; 2. a conductor; 3. an insulating layer; 4. wrapping a tape; 5. an inner liner layer; 6. an armor layer; 7. an outer sheath; 8. a cross-shield layer; 9. reinforcing the shielding layer; 10. an elastic reinforcing layer; 11. teflon sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a shielding control cable, including a plurality of protection hoses 1, wear to be equipped with a plurality of conductors 2 in the protection hose 1, the outside system of coiling of conductor 2 has insulating layer 3, and conductor 2, insulating layer 3, protection hose 1 constitute the cable core of cable jointly. The conductor 2 is used to implement the underlying signal transfer function.

The gaps among the plurality of protective hoses 1 are internally provided with crossed shielding layers 8 in a clamping mode, the cross sections of the crossed shielding layers 8 in the axial direction of the protective hoses 1 are arranged in a cross shape, the number of the protective hoses 1 is preferably four, the four protective hoses 1 are respectively arranged at the crossed connection positions of the crossed shielding layers 8, a heat dissipation space is formed between the crossed shielding layers 8 and the protective hoses 1, and tin-plated layers are coated on the surfaces of the crossed shielding layers 8. The cross shielding layer 8 is utilized to shield the adjacent conductors 2, the signal leakage condition in the signal transmission process of the conductors 2 is reduced, the tin coating is utilized to further strengthen the cross shielding layer 8 and strengthen the shielding effectiveness of the shielding net, and the stability of signal shielding is ensured.

The side of week of a plurality of protection hoses 1 has wrapped around the band 4 jointly in proper order, and around band 4 adoption mica tape make, the outside cover of band 4 is equipped with teflon sealing washer 11. The mica tape has better fire-resistant heat resistance, strengthens the holistic intensity of cable, utilizes teflon sealing washer 11 to wrap 4 tightly around band for it is better to wrap the effect around band 4.

Wrapping up in proper order around the outside of taking 4 has inner liner 5, armor 6, oversheath 7, presss from both sides between inner liner 5 and the armor 6 and is equipped with and strengthens shielding layer 9, and cross shielding layer 8 all adopts the copper wire net that beryllium copper silk was woven and is formed with strengthening shielding layer 9.

An elastic reinforcing layer 10 is arranged between the armor layer 6 and the outer sheath 7, and the elastic reinforcing layer 10 is made of ceramic silica gel rubber materials. Ceramic silicon rubber material self has shielding effect, strengthens cable's shielding function, and the material of self is comparatively soft simultaneously for the pliability of cable is better, and is more durable, is suitable for more environment.

The armor layer 6 is composed of a flexible aluminum strip pipe and a double-layer polyethylene pipe filled with carbon. The flexible aluminum strip pipe and the double-layer polyethylene pipe filled with carbon are used for protecting and isolating the cable, and meanwhile, external electromagnetic interference is isolated.

The outer sheath 7 adopts a low-smoke halogen-free flame-retardant polyvinyl chloride extrusion structure, and the thickness is 2-5 mm. The lag plays the guard action to inside conductor 2 on the one hand, plays the constraint effect to armor 6, and its self also has insulating ability simultaneously, uses more stably and safety.

The implementation principle of the embodiment is as follows:

utilize insulating layer 3, inner liner 5, armor 6, exhale outward the cover and play basic guard action to conductor 2, utilize cross shielding layer 8 to play the shielding effect to adjacent conductor 2, it absorbs to external electromagnetic signal to combine to strengthen shielding layer 9, realize the inside and outside two-way shielding effect of cable, external signal has effectively been reduced and has been transmitted signal's in to conductor 2 interference, the condition that transmission signal leaked in the conductor 2 can be reduced simultaneously, utilize the heat dissipation of heat dissipation space conductor 2 of being convenient for, make conductor 2 transmission signal's in-process, heat-conduction is stable, thereby the holistic performance of cable is more stable.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A shielded control cable, characterized by: comprises a plurality of protective hoses (1), a plurality of conductors (2) are arranged in the protective hoses (1) in a penetrating manner, insulating layers (3) are wound outside the conductors (2), peripheral sides of the protective hoses (1) are sequentially wrapped with a winding band (4), an inner liner layer (5), an armor layer (6) and an outer sheath (7), cross shielding layers (8) are clamped in gaps among the protective hoses (1), a heat dissipation space is formed between the crossed shielding layer (8) and the protection hose (1), a reinforced shielding layer (9) is clamped between the inner lining layer (5) and the armor layer (6), the cross shielding layer (8) and the reinforcing shielding layer (9) are copper wire nets woven by beryllium copper wires, an elastic reinforcing layer (10) is arranged between the armor layer (6) and the outer sheath (7).

2. A shielded control cable according to claim 1, characterized in that the cross-shield (8) is surface coated with tin plating.

3. A shielded control cable according to claim 2, characterized in that a teflon sealing ring (11) is sleeved on the outside of the wrapping tape (4).

4. A shielded control cable according to claim 3, characterized in that the wrapping tape (4) is made of mica tape.

5. A shielded control cable according to claim 4, characterized in that the elastic reinforcement layer (10) is made of ceramic silicone rubber material.

6. A shielded control cable according to claim 5, characterized in that the armouring layer (6) is constituted by a tube of flexible aluminium tape and a double polyethylene tube filled with carbon.

7. A shielded control cable according to claim 6, characterized in that the said outer sheath (7) is of extruded structure of low smoke halogen-free flame retardant polyvinyl chloride, with thickness of 2-5 mm.