CN211507217U

CN211507217U - Video coaxial cable

Info

Publication number: CN211507217U
Application number: CN202020268317.4U
Authority: CN
Inventors: 周林纲
Original assignee: Calder Cable Dongguan Co ltd
Current assignee: Calder Cable Dongguan Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-09-15
Anticipated expiration: 2030-03-06

Abstract

The embodiment of the utility model relates to the technical field of cables, a video coaxial cable is disclosed, including first protective layer, circumference is provided with first weaving layer on the first protective layer inner wall, circumference is provided with the second protective layer on the first weaving layer inner wall, circumference is provided with the second weaving layer on the second protective layer inner wall, circumference is provided with the third protective layer on the second weaving layer inner wall, circumference is provided with the third weaving layer on the third protective layer inner wall, be provided with the heart yearn in the third weaving layer, the heart yearn is by interior to outer conductor bundle and insulating layer of including. The innermost core wire is shielded by the three-layer braided layer and is wrapped and protected by the three-layer protective layer, so that the video coaxial cable has a good shielding effect and a good protection effect, the transmission performance is not interfered by external signals, and the normal transmission of the signals is ensured.

Description

Video coaxial cable

Technical Field

The embodiment of the utility model provides a relate to cable technical field, in particular to video coaxial cable.

Background

The cable is made of one or more mutually insulated conductors and an outer insulating protective layer, and is a lead for transmitting electric power or information from one place to another place, and the video coaxial cable is also called a video cable or a video monitoring cable, because the video coaxial cable is mainly used for transmitting video signals and is mostly used for connecting a security monitoring camera and a wire cable of a real terminal (a computer or a display and the like). In order to ensure the transmission of signals, the requirements on video coaxial cables are higher and higher, particularly the shielding rate of the cables is stricter and stricter, the existing video coaxial cables are only simple double-layer weaves, the shielding effect of the signals cannot meet the requirements, and the transmission performance is interfered.

SUMMERY OF THE UTILITY MODEL

Based on above, the utility model provides an aim at video coaxial cable possesses good shielding effect for transmission performance is not disturbed by external signal.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

the utility model provides a video coaxial cable, includes first protective layer, circumference is provided with first weaving layer on the first protective layer inner wall, circumference is provided with the second protective layer on the first weaving layer inner wall, circumference is provided with the second weaving layer on the second protective layer inner wall, circumference is provided with the third protective layer on the second weaving layer inner wall, circumference is provided with the third weaving layer on the third protective layer inner wall, be provided with the heart yearn in the third weaving layer, the heart yearn is by interior conductor bundle and insulating layer of including to the outside.

Further, the insulating layer is made of FEP material.

Further, the conductor bundle comprises 7 silver-plated ultra-fine conductors of 0.10 mm.

Furthermore, the third braided layer is formed by braiding 48 silver-plated superfine conductors with the thickness of 0.10 mm.

Further, the third protective layer is made of FEP material.

Furthermore, the second braided layer is formed by braiding 80-count 0.10mm tin-plated superfine conductors.

Further, the second protective layer is made of FEP material.

Further, the first braided layer is braided by 112 pieces of 0.10mm tin-plated superfine conductor.

Further, the first protective layer is made of a PVC material.

The utility model discloses beneficial effect does:

the embodiment of the utility model provides a video coaxial cable, the heart yearn of the innermost is shielded and three-layer protective layer parcel protection by the three-layer weaving layer for video coaxial cable possesses good shielding effect and protective effect, and transmission performance is not disturbed by external signal, has guaranteed the normal transmission of signal.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a video coaxial cable according to an embodiment of the present invention.

In the figure:

1. a first protective layer; 2. a first woven layer; 3. a second protective layer; 4. a second woven layer; 5. a third protective layer; 6. a third woven layer; 7. a core wire; 71. a conductor bundle; 72. an insulating layer.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments, but not all embodiments, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the embodiments of the present invention.

In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features through another feature not in direct contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, an embodiment of the present invention provides a video coaxial cable, which includes a first protection layer 1, preferably, the first protection layer 1 is made of PVC material, and the PVC material is cheap and has excellent performance; the inner wall of the first protective layer 1 is circumferentially provided with a first braided layer 2, preferably, the first braided layer 2 is formed by braiding 112 tinned superfine conductors with the thickness of 0.10mm, and the first braided layer 2 shields the inner core wire 7 to prevent an external signal from interfering the transmission performance of the core wire 7; the inner wall of the first braided layer 2 is circumferentially provided with the second protective layer 3, preferably, the second protective layer 3 is made of FEP (fluorinated ethylene propylene) material, and the FEP material is adopted, so that on one hand, the cable has super-strong mechanical bending and twisting resistance, and on the other hand, the FEP material is melted and flows to form a non-porous film when the non-stick coating is baked, and has excellent chemical stability and excellent non-stick property; a second braided layer 4 is circumferentially arranged on the inner wall of the second protective layer 3, preferably, the second braided layer 4 is formed by braiding 80 tinned superfine conductors with the thickness of 0.10mm, and further shields and protects the core wire 7 to prevent external signals from interfering the transmission performance of the core wire 7; a third protective layer 5 is circumferentially arranged on the inner wall of the second braided layer 4, preferably made of FEP (fluorinated ethylene propylene) material, so that the mechanical bending and twisting resistance of the cable is further improved; a third braided layer 6 is circumferentially arranged on the inner wall of the third protective layer 5, preferably, the third braided layer 6 is formed by braiding 48 silver-plated superfine conductors with the thickness of 0.10mm, so that the core wire 7 is further shielded and protected, and interference of external signals on the transmission performance of the core wire 7 is prevented; a core wire 7 is arranged in the third braided layer 6, the core wire 7 comprises a conductor bundle 71 and an insulating layer 72 from inside to outside, and preferably, the conductor bundle 71 comprises 7 silver-plated superfine conductors with the thickness of 0.10 mm; preferably, the insulating layer 72 is made of FEP, and the insulating layer 72 further protects the conductor bundle 71, so as to further improve the mechanical bending and twisting resistance of the cable.

The embodiment of the utility model provides a video coaxial cable, the heart yearn 7 of the innermost is shielded and three-layer protective layer parcel protection by the three-layer weaving layer for video coaxial cable possesses good shielding effect and protective effect, and transmission performance is not disturbed by external signal, has guaranteed the normal transmission of signal. In addition, the second protective layer 3 and the third protective layer 5 are made of Teflon FEP materials, on one hand, the cable can have super-strong mechanical bending and twisting resistance, and on the other hand, the FEP is melted and flows to form a non-porous film when the non-stick coating is baked, so that the non-stick coating has excellent chemical stability and excellent non-stick property.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the embodiments of the present invention are not limited to the particular embodiments described herein, but are capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the embodiments of the invention. Therefore, although the embodiments of the present invention have been described in greater detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments can be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.

Claims

1. The utility model provides a video coaxial cable, its characterized in that, includes first protective layer (1), circumference is provided with first weaving layer (2) on first protective layer (1) inner wall, circumference is provided with second protective layer (3) on first weaving layer (2) inner wall, circumference is provided with second weaving layer (4) on second protective layer (3) inner wall, circumference is provided with third protective layer (5) on second weaving layer (4) inner wall, circumference is provided with third weaving layer (6) on third protective layer (5) inner wall, be provided with heart yearn (7) in third weaving layer (6), heart yearn (7) are by interior to outer conductor bundle (71) and insulating layer (72) including.

2. The video coaxial cable of claim 1, wherein the insulating layer (72) is made of a FEP material.

3. The video coaxial cable of claim 1, wherein the conductor bundle (71) comprises 7 silver plated micro fine conductors of 0.10 mm.

4. Video coaxial cable according to any one of claims 1 to 3, characterized in that said third braid (6) is braided from 48 silver plated micro conductors of 0.10 mm.

5. Video coaxial cable according to claim 4, characterized in that said third protective layer (5) is made of FEP material.

6. Video coaxial cable according to claim 5, characterized in that said second braid (4) is braided from 80 pieces of 0.10mm tin plated micro conductor.

7. Video coaxial cable according to claim 6, characterized in that said second protective layer (3) is made of FEP material.

8. The video coaxial cable according to claim 7, characterized in that said first braid (2) is braided from 112 pieces of 0.10mm tin plated micro conductor.

9. Video coaxial cable according to claim 8, characterized in that said first protective layer (1) is made of PVC material.