CN110391488A

CN110391488A - Coaxial cable

Info

Publication number: CN110391488A
Application number: CN201910692971.XA
Authority: CN
Inventors: 杨云超
Original assignee: Kunshan Ray Communication Technology Co Ltd
Current assignee: Kunshan Ray Communication Technology Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2019-10-29

Abstract

A kind of coaxial cable, including center conductor, the winding body for being wound in the center conductor periphery, the inner insulating layer for being coated on the winding body periphery, the shielded layer being coated on outside the inner insulating layer and the external insulation layer for being coated on the shielded layer periphery, the winding body of the center conductor periphery be formed with the air gap contacted with the center conductor；The reflection of the application coaxial cable is small, is lost low.

Description

Coaxial cable

Technical field

This application involves electric connector field, espespecially a kind of coaxial cable.

Background technique

Existing coaxial cable generally comprises center conductor, the inner insulating layer being coated on outside the center conductor, is coated on institute The external insulation layer stating the shielded layer outside inner insulating layer and being coated on outside the shielded layer.It can emit during radio signal transmission, It causes to be lost, and center conductor transmitting radio frequency signal, the reflection of radiofrequency signal in air medium are smaller, and general insulation material Reflection in material is larger instead.

Summary of the invention

In consideration of it, it is necessary to provide one kind can reduce reflection to control the coaxial cable of radio frequency loss.

In order to solve the above technical problems, this application provides a kind of coaxial cable, including center conductor, it is wound in described The winding body of heart conductor periphery, the inner insulating layer for being coated on the winding body periphery, the shielding being coated on outside the inner insulating layer Layer and be coated on the external insulation layer of the shielded layer periphery, the winding body of the center conductor periphery be formed with it is described in The air gap of heart conductor contact.

Preferably, the winding body is spiral winding structure, and the air gap is the gap of the spiral winding structure.

Preferably, the spiral spacing of the screw type winding body is between 0.1-10mm.

Preferably, the spiral spacing of the screw type winding body is between 2-8mm.

Preferably, the diameter of the winding body is greater than the thickness of the inner insulating layer.

Preferably, the center conductor is that more core wires hingedly form.

The application coaxial cable winds winding body between the center conductor and the inner insulating layer, leads the center The periphery of body forms spiral the air gap to reduce the reflection for the radiofrequency signal that the center conductor is transmitted, and reduces damage Consumption.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.

Fig. 1 is the perspective view of the application coaxial cable；

Fig. 2 is the partial enlarged view of virtual coil shown in Fig. 1；

Fig. 3 is the cross-sectional view along A-A dotted line shown in Fig. 1；

Fig. 4 is the cross-sectional view along B-B dotted line shown in Fig. 1；

Fig. 5 is the center conductor of the application coaxial cable and the constitutional diagram of winding body.

Specific embodiment

To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and Technical scheme is clearly and completely described in corresponding attached drawing.

It please refers to shown in Fig. 1, Fig. 2, the application coaxial cable includes center conductor 10, is wound in outside the center conductor 10 The winding body 50 in week, the inner insulating layer 20 for being coated on 50 periphery of winding body, the shielding being coated on outside the inner insulating layer 20 Layer 30 and the external insulation layer 40 for being coated on 30 periphery of shielded layer.

Please continue to refer to shown in Fig. 3 to Fig. 5, the winding body 50 is made of insulating materials, and the winding body 50 is with spiral Formula is wound in 10 periphery of center conductor, and the inner insulating layer 20 is closely coated on 50 periphery of winding body, the winding The diameter of body 50 is greater than the thickness of the inner insulating layer 20, forms spiral sky in the periphery of the center conductor 10 as a result, Gas gap 60.The spiral spacing h of the winding body 50 is about between 0.1-10mm, and in theory, the spiral spacing h is got over It is big better, but need to be enough to support the inner insulating layer 20 will not collapse and then tie up the air gap 60, it is preferably described H is between 2-8mm for spiral spacing.

The center conductor 10 is individual cord, more preferable using individual cord effect, but the design hardness of individual cord It is larger, it is not easy to bend；So the center conductor 10 is generally hingedly formed using more core wires, such as 3,5,7.

The shielded layer 30 is wire sheathing, plays the role of shielded signal, the shielded layer one with conventional coaxial cable It causes.The external insulation layer 40 is closely coated on 30 periphery of shielded layer.

The application coaxial cable winds winding body 50 between the center conductor 10 and the inner insulating layer 20, makes described The periphery of center conductor 10 forms spiral the air gap 60 to reduce radiofrequency signal that the center conductor 10 is transmitted Reflection reduces loss.

The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal Replacement, improvement etc., should be included within the scope of the claims of this application.

Claims

1. a kind of coaxial cable, which is characterized in that including center conductor, the winding body that is wound in the center conductor periphery, packet It the inner insulating layer for being overlying on the winding body periphery, the shielded layer being coated on outside the inner insulating layer and is coated on outside the shielded layer The external insulation layer in week, the winding body of the center conductor periphery are formed with the air gap contacted with the center conductor.

2. coaxial cable as described in claim 1, which is characterized in that the winding body is spiral winding structure, the air Gap is the gap of the spiral winding structure.

3. coaxial cable as claimed in claim 2, which is characterized in that the spiral spacing of the screw type winding body is 0.1- Between 10mm.

4. coaxial cable as claimed in claim 3, which is characterized in that the spiral spacing of the screw type winding body is 2-8mm Between.

5. coaxial cable as claimed in claim 2, which is characterized in that the diameter of the winding body is greater than the inner insulating layer Thickness.

6. coaxial cable as described in claim 1, which is characterized in that the center conductor is that more core wires hingedly form.