CN215069416U

CN215069416U - Low-loss flexible microwave coaxial radio-frequency cable for high-frequency place

Info

Publication number: CN215069416U
Application number: CN202121397982.4U
Authority: CN
Inventors: 胡志贞; 胡灯有; 姜宝翔
Original assignee: Yangzhou Huayu Cable Co ltd
Current assignee: Yangzhou Huayu Cable Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-07
Anticipated expiration: 2031-06-22

Abstract

The application discloses a low-loss flexible microwave coaxial radio-frequency cable for a high-frequency place, which comprises an outer sheath, wherein a coaxial cable, 2 tensile units and 4 power lines are arranged in the outer sheath, and the coaxial cable sequentially comprises a first conductor, a first insulating layer, a second insulating layer, a third insulating layer, a first shielding layer, a second shielding layer and an inner protection layer from inside to outside; the power line sequentially comprises a second conductor, a fourth insulating layer and a flame-retardant layer from inside to outside; the tensile unit includes tensile heart yearn and tensile heart yearn sheath, tensile heart yearn sheath have one be used for with the first butt face of inner sheath butt and two be used for with the second butt face of fire-retardant layer butt, every tensile heart yearn sheath and two power cord butts. The cable of the application is good in insulation and shielding effect and low in loss.

Description

Low-loss flexible microwave coaxial radio-frequency cable for high-frequency place

Technical Field

The application relates to the field of cables, in particular to a low-loss soft microwave coaxial radio-frequency cable for a high-frequency place.

Background

Radio frequency cables are cables that transmit electromagnetic energy in the radio frequency range, are indispensable components in various radio communication systems and electronic devices, and are widely used in the fields of wireless communication and broadcasting, television, radar, navigation, computers, instruments, and the like. In some environments, the span of the used humidity and temperature is large, and in some occasions, both the radio frequency cable and the power line need to be installed, so that the installation of the cable is troublesome, and in the use occasions, the radio frequency cable is required to have a good shielding effect and low loss.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the application aims to overcome the defects of the prior art and provides the low-loss flexible microwave coaxial radio-frequency cable for the high-frequency place.

The technical scheme is as follows: a low-loss flexible microwave coaxial radio-frequency cable for a high-frequency place comprises an outer sheath, wherein a coaxial cable, 2 tensile units and 4 power lines are arranged in the outer sheath, and the coaxial cable sequentially comprises a first conductor, a first insulating layer, a second insulating layer, a third insulating layer, a first shielding layer, a second shielding layer and an inner sheath from inside to outside; the power line sequentially comprises a second conductor, a fourth insulating layer and a flame-retardant layer from inside to outside; the tensile unit includes tensile heart yearn and tensile heart yearn sheath, tensile heart yearn sheath have one be used for with the first butt face of inner sheath butt and two be used for with the second butt face of fire-retardant layer butt, every tensile heart yearn sheath and two power cord butts.

Further, the first abutting surface, the second abutting surface and the third abutting surface are all arc surfaces.

Further, the fourth insulating layer is a polyethylene insulating layer, and the flame retardant layer is a low-smoke halogen-free flame retardant layer.

Further, the inner sheath and the outer sheath are both made of polyurethane material.

Further, the cross section of the outer sheath is oval.

Further, the first shielding layer is a silver-plated flat wire shielding layer; the second shielding layer is a silver-plated copper wire shielding layer.

Further, the first insulating layer is made of fluoroplastic, the second insulating layer is a foaming layer, and the third insulating layer is a microporous polytetrafluoroethylene insulating layer.

Has the advantages that: the cable of this application contains radio frequency cable and power cord simultaneously, adapts to more use occasions, simplifies the installation of cable to it is insulating, shielding effectual, the loss is low, and the operational environment temperature span that can use is big.

Drawings

Fig. 1 is a schematic cross-sectional view of a cable.

Detailed Description

Reference numerals: 1.1 a first conductor; 1.2 a first insulating layer; 1.3 a second insulating layer; 1.4 a third insulating layer; 1.5 a first shielding layer; 1.6 a second shielding layer; 1.7 inner protecting layer; 2.1 a second conductor; 2.2 a fourth insulating layer; 2.3 flame retardant layer; 3.1 tensile core wire; 3.2 tensile core wire sheath; 4 outer sheath.

The following detailed description is made with reference to the accompanying drawings: as shown in the figure, the low-loss flexible microwave coaxial radio-frequency cable for the high-frequency place comprises an outer sheath 4, wherein a coaxial cable, 2 tensile units and 4 power lines are arranged in the outer sheath 4, and the coaxial cable sequentially comprises a first conductor 1.1, a first insulating layer 1.2, a second insulating layer 1.3, a third insulating layer 1.4, a first shielding layer 1.5, a second shielding layer 1.6 and an inner protecting layer 1.7 from inside to outside; the power line sequentially comprises a second conductor 2.1, a fourth insulating layer 2.2 and a flame-retardant layer 2.3 from inside to outside; the tensile unit includes tensile heart yearn 3.1 and tensile heart yearn sheath 3.2, tensile heart yearn sheath 3.2 has one and is used for the first butt face with interior sheath 1.7 butt and two be used for with the second butt face of fire-retardant layer 2.3 butt, every tensile heart yearn sheath 3.2 and two power cords butt.

The first butt joint surface, the second butt joint surface and the third butt joint surface are all cambered surfaces. Fourth insulating layer 2.2 is the polyethylene insulating layer, fire-retardant layer 2.3 is low smoke and zero halogen fire-retardant layer. The inner sheath layer 1.7 and the outer sheath 4 are both made of polyurethane material. The outer sheath 4 is oval in cross-section. The first shielding layer 1.5 is a silver-plated flat wire shielding layer; the second shielding layer 1.6 is a silver-plated copper wire shielding layer. The first insulating layer 1.2 is made of fluoroplastic, the second insulating layer 1.3 is a foamed layer, and the third insulating layer 1.4 is a microporous polytetrafluoroethylene insulating layer.

As shown in the figure, the cable of this application has coaxial radio frequency cable and many power cords to two power cords are a set of, combine tensile unit, and tensile performance is good on the whole, owing to have the power cord, simplified the installation of some use occasion cables, and radio frequency cable has first, two shielding layers, and the composite insulation layer that first, two, three insulating layers constitute, lead to insulating, shielding effectual, signal transmission loss is low.

Although the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

1. The low-loss flexible microwave coaxial radio-frequency cable for the high-frequency place is characterized by comprising an outer sheath, wherein a coaxial cable, 2 tensile units and 4 power lines are arranged in the outer sheath, and the coaxial cable sequentially comprises a first conductor, a first insulating layer, a second insulating layer, a third insulating layer, a first shielding layer, a second shielding layer and an inner protection layer from inside to outside; the power line sequentially comprises a second conductor, a fourth insulating layer and a flame-retardant layer from inside to outside; the tensile unit includes tensile heart yearn and tensile heart yearn sheath, tensile heart yearn sheath have one be used for with the first butt face of inner sheath butt and two be used for with the second butt face of fire-retardant layer butt, every tensile heart yearn sheath and two power cord butts.

2. The low-loss flexible microwave coaxial radio-frequency cable for the high-frequency field according to claim 1, wherein the first abutting surface, the second abutting surface and the third abutting surface are all cambered surfaces.

3. The low-loss flexible microwave coaxial radio-frequency cable for the high-frequency place according to claim 1, wherein the fourth insulating layer is a polyethylene insulating layer, and the flame-retardant layer is a low-smoke halogen-free flame-retardant layer.

4. The low-loss flexible microwave coaxial radio-frequency cable for the high-frequency field according to claim 1, wherein the inner sheath and the outer sheath are made of polyurethane material.

5. The low-loss flexible microwave coaxial radio-frequency cable for the high-frequency field according to claim 1, wherein the cross-section of the outer sheath is elliptical.

6. The low-loss flexible microwave coaxial radio-frequency cable for the high-frequency place according to claim 1, wherein the first shielding layer is a silver-plated flat wire shielding layer; the second shielding layer is a silver-plated copper wire shielding layer.

7. The low-loss flexible microwave coaxial radio-frequency cable for the high-frequency field according to claim 1, wherein the first insulating layer is made of fluoroplastic, the second insulating layer is a foamed layer, and the third insulating layer is a microporous polytetrafluoroethylene insulating layer.