CN219591139U

CN219591139U - Anti-interference cable

Info

Publication number: CN219591139U
Application number: CN202223372734.1U
Authority: CN
Inventors: 王珏; 吴礼
Original assignee: Knott Changsha Connection Technology Co ltd
Current assignee: Knott Changsha Connection Technology Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-08-25
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses an anti-interference cable, which comprises: the two mutually insulated signal wires are sequentially provided with an aluminum foil layer, a braiding layer and an outer sheath; a plurality of mutually insulated earth conductors, earth conductors set up between weaving layer and oversheath for connect different grounds respectively, connect different grounds through different earth conductors, each earth conductor is mutually insulated, each other do not have the connection between the different earth conductors, avoid mutual interference, set up aluminium foil layer and weaving layer outside the signal line, aluminium foil layer and weaving layer can play dual electromagnetic shield effect, prevent outside electromagnetic interference to cause the influence to signal transmission, promoted interference immunity ability, ensure signal quality is stable.

Description

Anti-interference cable

Technical Field

The utility model relates to the technical field of cables, in particular to an anti-interference cable.

Background

In order to ensure reliable operation of the system and devices connected with the system and ensure complete data transmission and accurate signal control, the circuit system must be grounded, and various components and functional modules in the system are correspondingly provided with various ground wires, including signal ground, analog ground, digital ground, suspension ground, power ground and the like. The traditional cable generally adopts shielding layer or armor to connect the ground wire, directly links to each other between different ground wires, and the interference easily mutually, in addition, traditional cable still receives outside electromagnetic interference easily, influences circuit system normal operating.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides an anti-interference cable which can solve the problem of insufficient anti-interference performance of the traditional cable.

According to an embodiment of the utility model, an anti-interference cable comprises: the two mutually insulated signal wires are sequentially provided with an aluminum foil layer, a braiding layer and an outer sheath; and the grounding wires are arranged between the braiding layer and the outer sheath and used for respectively connecting different grounds.

The anti-interference cable provided by the embodiment of the utility model has at least the following beneficial effects:

the grounding wires are connected with different grounds through different grounding wires, the grounding wires are mutually insulated, the grounding wires are not connected with each other, mutual interference is avoided, an aluminum foil layer and a weaving layer are arranged outside a signal wire, the aluminum foil layer and the weaving layer can play a role in dual electromagnetic shielding, the influence of external electromagnetic interference on signal transmission is prevented, the grounding wires are arranged between the weaving layer and an outer sheath, the weaving layer prevents the mutual interference between the grounding wires and the signal wire, the outer sheath plays a role in protecting the grounding wires, the grounding wires are prevented from being mechanically damaged, the anti-interference performance is improved, and the signal quality is ensured to be stable.

According to some embodiments of the utility model, the number of ground conductors is 6.

According to some embodiments of the utility model, a first wrap is provided between the signal line and the aluminum foil layer.

According to some embodiments of the utility model, a filler is disposed between the signal line and the first cladding layer for forming a cylindrical structure.

According to some embodiments of the utility model, a second wrap is provided between the braid and the outer sheath, and the ground wire is provided between the braid and the second wrap.

According to some embodiments of the utility model, an armor layer is disposed between the second wrap layer and the outer jacket.

According to some embodiments of the utility model, an inner sheath is disposed between the second cladding layer and the armor layer.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a cross-sectional view of the present utility model.

Reference numerals:

a signal line 100, a first insulating layer 110,

200 parts of aluminum foil layer,

A braiding layer 300,

An outer sheath 400,

A first ground wire 500, a second ground wire 510, a third ground wire 520, a fourth ground wire 530, a fifth ground wire 540, a sixth ground wire 550,

A first cladding 600, a second cladding 610,

A filler 700,

Armor 800,

An inner sheath 900.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

An anti-interference cable according to an embodiment of the present utility model is described below with reference to fig. 1.

As shown in fig. 1, an anti-interference cable according to an embodiment of the present utility model includes: the two signal wires 100 and the ground wires, the ground wires include a first ground wire 500, a second ground wire 510, a third ground wire 520, a fourth ground wire 530, a fifth ground wire 540 and a sixth ground wire 550, the surface of the signal wire 100 is provided with a first insulating layer 110, the outside of the signal wire 100 is provided with an aluminum foil layer 200, a braid 300 and an outer sheath 400 in order, the first ground wire 500, the second ground wire 510, the third ground wire 520, the fourth ground wire 530, the fifth ground wire 540 and the sixth ground wire 550 are provided between the braid 300 and the outer sheath 400, and the first ground wire 500, the second ground wire 510, the third ground wire 520, the fourth ground wire 530, the fifth ground wire 540 and the sixth ground wire 550 are insulated from each other. The material of the first insulating layer 110 is polyolefin. The material of braid 300 is tin-plated copper wire. The material of the outer sheath 400 is polyolefin. Other protective layers can be added between the aluminum foil layer 200 and the outer sheath 400, and the first ground wire 500, the second ground wire 510, the third ground wire 520, the fourth ground wire 530, the fifth ground wire 540, and the sixth ground wire 550 can be disposed between any two protective layers. The number of the ground conductors may also be increased or decreased depending on the application scenario.

The first, second, third, fourth, fifth and sixth grounding wires 500, 510, 520, 530 are connected to analog ground, the fourth grounding wire 530 is connected to floating ground, the fifth grounding wire 540 is connected to digital ground, the sixth grounding wire 550 is connected to power ground, the first, second, third, fourth, fifth and sixth grounding wires 500, 510, 520, 530, 540, 550 are insulated from each other, the different grounding wires are not connected to each other, mutual interference is avoided, the aluminum foil layer 200 and the braid 300 are disposed outside the signal wire, the aluminum foil layer 200 and the braid 300 can play a dual electromagnetic shielding role, the influence of external electromagnetic interference on signal transmission is prevented, the first, second, third, fourth, fifth, and sixth ground conductors 500, 510, 520, 530, 540, and 550 are disposed between the braid 300 and the outer sheath 400, and the braid 300 prevents the first, second, third, fourth, fifth, and sixth ground conductors 500, 510, 520, 530, 540, and 550 from interfering with the signal line 100, and the outer sheath 400 protects the first, second, third, fourth, fifth, and sixth ground conductors 500, 520, 530, 540, and 550 from mechanical damage, improves anti-interference performance, ensures stable signal quality, and is applicable in various complex industrial environments.

As shown in fig. 1, a first wrapping layer 600 is arranged between the signal wire 100 and the aluminum foil layer 200, and the first wrapping layer 600 is a mailer layer, so that strength is increased, loosening of a cable is prevented, and stable capacitance is maintained.

As shown in fig. 1, a filler 700 is provided between the signal wire 100 and the first cladding layer 600 for forming a cylindrical structure, increasing the roundness and strength. The material of the filler 700 is polyolefin.

As shown in fig. 1, a second wrapping layer 610 is disposed between the braid 300 and the outer sheath 400, the first, second, third, fourth, fifth and sixth ground wires 500, 510, 520, 530, 540 and 550 are disposed between the braid 300 and the second wrapping layer 610, the surfaces of the first, second, third, fourth, fifth and sixth ground wires 500, 520, 530, 540 and 550 are each provided with a second insulating layer, and the second wrapping layer 610 can fix the first, second, third, fourth, fifth and sixth ground wires 500, 510, 520, 530, 540 and 550 between the braid 300 and the outer sheath 400, so that the structure is stable. The material of the second wrapping layer 610 is a nonwoven fabric.

As shown in fig. 1, an armor layer 800 is provided between the second cladding layer 610 and the outer sheath 400 to improve tensile strength, resistance to flattening, corrosion resistance and direct burial application.

As shown in fig. 1, an inner sheath 900 is provided between the second cladding layer 610 and the armor 800 to protect the first and second insulation layers 110 and 110 from moisture, mechanical damage, and the action of light and chemically aggressive media. The material of the inner sheath 900 is polyolefin.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. An anti-interference cable, comprising:

the device comprises two mutually insulated signal wires (100), wherein an aluminum foil layer (200), a braiding layer (300) and an outer sheath (400) are sequentially arranged outside the signal wires (100);

and a plurality of mutually insulated grounding wires arranged between the braiding layer (300) and the outer sheath (400) for respectively connecting different grounds.

2. The anti-interference cable of claim 1, wherein: the number of the grounding wires is 6.

3. The anti-interference cable of claim 1, wherein: a first wrapping layer (600) is arranged between the signal wire (100) and the aluminum foil layer (200).

4. A tamper resistant cable according to claim 3, wherein: a filler (700) is arranged between the signal line (100) and the first cladding layer (600) for forming a cylindrical structure.

5. The anti-interference cable of claim 1, wherein: a second wrapping layer (610) is arranged between the braiding layer (300) and the outer sheath (400), and the grounding wire is arranged between the braiding layer (300) and the second wrapping layer (610).

6. The anti-interference cable of claim 5, wherein: an armor layer (800) is disposed between the second cladding layer (610) and the outer jacket (400).

7. The anti-interference cable of claim 6 wherein: an inner sheath (900) is disposed between the second cladding layer (610) and the armor layer (800).