CN210200359U

CN210200359U - Multi-shield type anti-break cable

Info

Publication number: CN210200359U
Application number: CN201921355808.6U
Authority: CN
Inventors: Xianli Zheng; 郑鲜莉; Yaowei Zhang; 张姚伟; Peigen Yao; 姚佩根; Fuxiang Gu; 顾富祥
Original assignee: Zhejiang Hai Yan Electronic Cable Co Ltd
Current assignee: Zhejiang Hai Yan Electronic Cable Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-03-27
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a many shielding layer types are able to bear or endure broken cable, the cable is by outer to interior outer jacket, back up coat, interior sheath, weaving shielding layer and aluminium foil of including in proper order around the package shielding skin, the aluminium foil has the aluminium foil around the cable core of package shielding inner layer around four outer cladding that are provided with mutual transposition in the package shielding skin, every the cable core is respectively including two sinle silks of mutual transposition, every the sinle silk includes the insulating layer of conductor and conductor periphery respectively, near the cable core is provided with the packing. The utility model discloses can effectively block the loss of signal and prevent static, under the prerequisite of ensureing the shielding effect, improve the mechanical strength of cable greatly to internal stress between the wire pair when reducible cable twists increases cable life.

Description

Multi-shield type anti-break cable

Technical Field

The utility model relates to a shielded cable technical field, concretely relates to resistant broken cable of many shielding layer types.

Background

The shielding cable is formed by adding a shielding layer outside a transmission cable and has the capability of resisting external electromagnetic interference. The shielding layer of the cable is mostly woven into a netted metal wire or a metal film, and the cable has a plurality of different modes of single shielding and multi-shielding. Single shield refers to a single shielding mesh or film in which one or more wires may be wrapped. The multi-shielding mode is that a plurality of shielding nets and shielding films are arranged in a cable in a shared mode. Some are used to isolate electromagnetic interference between wires, and some are double-layer shields used to enhance shielding effect. The shielding layer is grounded to isolate the induced interference voltage of the external connection to the conducting wire.

Nowadays, with the rapid development of the network era, the application requirements of the network cable are higher and higher, and especially in a strong interference environment, namely, a place with electromagnetic interference, the research and development of the double-shielded network cable can effectively solve the problems of electromagnetic interference and information leakage in the strong interference environment. However, the existing aluminum foil wrapped double-shielded data cable still has the problem of poor shielding effect, and cannot meet the requirement of high standard in the industry, and in addition, the double-shielded cable also has the defects of low mechanical strength, low bursting strength, poor practicability and the like.

Based on the circumstances, the utility model provides a many shielding layer types are able to bear or endure broken cable, can effectively solve above problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistant broken cable of shielding layer type is shielded to many screens. The utility model adds a layer of braided shield layer outside the double-layer aluminum foil shield layer, which can effectively block the loss of signals and prevent static electricity; the utility model is provided with a reinforcing layer between the inner and outer protective layers, which can greatly improve the mechanical strength of the cable on the premise of ensuring the shielding effect; the filling piece is added in the cable core structure, so that the internal stress between the wire pairs when the cable is twisted is reduced, and the service life of the cable is prolonged.

The utility model discloses a following technical scheme realizes:

the utility model provides a many screen shielding layer type are able to bear or endure broken cable, the cable is by outer to interior outer jacket, back up coat, interior sheath, weave shielding layer and the aluminium foil of including in proper order around the package shielding skin, the aluminium foil has the aluminium foil to wrap the cable core of package shielding inlayer around the outer four outer cladding that are provided with mutual transposition of package shielding skin, every the cable core includes two sinle silks of transposition each other respectively, every the sinle silk includes the insulating layer of conductor and conductor periphery respectively, near the cable core is provided with the filler.

As a preferred technical scheme, the inner protective layer and the outer protective layer are both made of high-density polyethylene materials.

As a preferable technical scheme, the number of the filling pieces is 5, and the filling pieces and the four cable cores are mutually twisted.

As a more preferable technical solution, the material of the filling member is polytetrafluoroethylene material.

As an optimal technical scheme, the aluminum foil lapping shielding outer layer and the aluminum foil lapping shielding inner layer are double-sided aluminum foil shielding layers or single-sided aluminum foil shielding layers.

As a preferred technical scheme, the reinforcing layer is a steel wire armor layer.

As a preferred technical scheme, the conductors are all formed by stranding thin oxygen-free copper wires.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model discloses increase the one deck and weave the shielding layer outside double-deck aluminium foil shielding layer, can effectively block the loss of signal and prevent static.

The utility model discloses added the filling member in the cable core structure, internal stress between the line pair when reducing the cable distortion increases cable life.

The utility model discloses be equipped with the one deck back up coat between the outer jacket including, can improve the mechanical strength of cable greatly under the prerequisite of guaranteeing the shielding effect.

The utility model discloses a conductor adopts the stranded tin-plating or does not plate tin anaerobic copper wire transposition and forms, and bending radius is little when laying, easily removes.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the present invention.

In the figure: 1-a cable core; 11-a wire core; 101-a conductor; 102-an insulating layer; 2-wrapping an inner shielding layer with aluminum foil; 3-a filling member; 4-wrapping the shielding outer layer with aluminum foil; 5-weaving a shielding layer; 6-inner protective layer; 7-a reinforcing layer; 8-outer protective layer.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1, the cable sequentially comprises an outer protective layer 8, a reinforcing layer 7, an inner protective layer 6, a braided shielding layer 5 and an aluminum foil lapping shielding outer layer 4 from outside to inside, wherein the braided shielding layer 5 is an interwoven braided shielding formed by braiding copper foil wires and metal bare wires in a crossed manner; the aluminum foil is provided with four cable cores 1 which are mutually twisted and are coated with an aluminum foil wrapping shielding inner layer 2 in the aluminum foil wrapping shielding outer layer 4, each cable core 1 comprises two wire cores 11 which are mutually twisted, each wire core 11 comprises a conductor 101 and an insulating layer 102 on the periphery of the conductor 101, a filling part 3 is arranged near the cable core 1, the insulating layer 102 is made of ethylene propylene rubber, the ethylene propylene rubber is simple in production process and low in cost, and the main chain of the ethylene propylene rubber is composed of chemically stable saturated hydrocarbon, so that the ethylene propylene rubber is excellent in ozone resistance, heat resistance, weather resistance and other aging resistance.

Further, in another embodiment, the inner sheath layer 6 and the outer sheath layer 8 are both made of high density polyethylene material, and the high density polyethylene material is thermoplastic polyolefin formed by copolymerizing ethylene, and has good heat resistance, cold resistance, chemical stability, and higher rigidity, toughness, and mechanical strength.

Further, in another embodiment, the number of the filling members 3 is 5, and the filling members are twisted with four of the cable cores 1.

Further, in another embodiment, the material of the filling member 3 is teflon, and the filling member 3 is formed by extrusion of teflon.

Further, in another embodiment, the aluminum foil lapping shielding outer layer 4 and the aluminum foil lapping shielding inner layer 2 are double-sided aluminum foil shielding layers or single-sided aluminum foil shielding layers.

Further, in another embodiment, the reinforcing layer 7 is a steel wire armor layer, which prevents the cable from mechanical damage during laying or operation, so as to ensure the integrity of the inner protective layer and withstand a certain external force.

Further, in another embodiment, the conductors 101 are formed by twisting thin oxygen-free copper wires, and a plurality of strands of thin oxygen-free copper wires are twisted, so that the flexibility is strong, and the bending resistance is high.

According to the utility model discloses a description and attached drawing, the skilled person in the art makes or uses very easily the utility model discloses a resistant broken cable of shielding layer type more, and can produce the positive effect that the utility model discloses record.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims

1. The utility model provides a resistant broken cable of many shielding layer types which characterized in that: the cable is by outer to interior outer jacket (8), back up coat (7), interior sheath (6), weave shielding layer (5) and aluminium foil around package shielding skin (4) of including in proper order, the aluminium foil has four outer cladding that have the aluminium foil around package shielding inner layer (2) cable core (1) around package shielding skin (4) of mutual transposition, every cable core (1) is including two sinle silks (11) of mutual transposition respectively, every sinle silk (11) include insulating layer (102) of conductor (101) and conductor (101) periphery respectively, near cable core (1) is provided with filler (3).

2. A multi-shielding layer type rupture-resistant cable according to claim 1, wherein: the inner protection layer (6) and the outer protection layer (8) are both made of high-density polyethylene materials.

3. A multi-shielding layer type rupture-resistant cable according to claim 1, wherein: the number of the filling pieces (3) is 5, and the filling pieces and the four cable cores (1) are mutually twisted.

4. A multi-shield type rupture-resistant cable according to claim 1 or 3, wherein: the filling piece (3) is made of polytetrafluoroethylene material.

5. A multi-shielding layer type rupture-resistant cable according to claim 1, wherein: the aluminum foil wrapping shielding outer layer (4) and the aluminum foil wrapping shielding inner layer (2) are double-sided aluminum foil shielding layers or single-sided aluminum foil shielding layers.

6. A multi-shielding layer type rupture-resistant cable according to claim 1, wherein: the reinforcing layer (7) is a steel wire armor layer.

7. A multi-shielding layer type rupture-resistant cable according to claim 1, wherein: the conductors (101) are all formed by stranding thin oxygen-free copper wires.