CN213752991U

CN213752991U - Millimeter wave semi-flexible radio frequency coaxial cable

Info

Publication number: CN213752991U
Application number: CN202022722937.3U
Authority: CN
Inventors: 袁剑; 李超; 韩春胜
Original assignee: Anhui Yuanzheng Cable Technology Co ltd
Current assignee: Anhui Yuanzheng Cable Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-07-20
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a millimeter wave semi-soft radio frequency coaxial cable, which comprises an inner conductor, a microporous polytetrafluoroethylene insulating layer, a first wrapping layer, a tinned copper wire braided shielding layer, a second wrapping layer, a fluorinated ethylene propylene sheath layer, a pressure resistant layer and an aramid fiber braided protective layer, wherein the microporous polytetrafluoroethylene insulating layer, the first wrapping layer, the tinned copper wire braided shielding layer, the second wrapping layer, the fluorinated ethylene propylene sheath layer, the pressure resistant layer and the aramid fiber braided protective layer are sequentially wrapped outside the inner conductor; first tensile cores and first toughening cores which are distributed circumferentially around the inner conductor and are tightly attached are arranged between the inner conductor and the microporous polytetrafluoroethylene insulating layer in a staggered manner; a second tensile core is embedded in the microporous polytetrafluoroethylene insulating layer; grooves are formed in the inner side of the fluorinated ethylene propylene sheath layer at intervals, arc-shaped bearing plates are arranged in the grooves, and second toughening cores are arranged between the arc-shaped bearing plates and the second wrapping belt layer; a third tensile core is embedded in the fluorinated ethylene propylene sheath layer; the resistance to compression layer includes the resistance to compression bead that the interval set up and connects the arc connecting plate of adjacent resistance to compression bead. The utility model discloses aim at solving the current problem that radio frequency coaxial cable resistance to compression and tensile strength are poor.

Description

Millimeter wave semi-flexible radio frequency coaxial cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a millimeter wave semi-soft radio frequency coaxial cable.

Background

The cable is made of one or more mutually insulated conductors and an outer-coated insulating protective layer, and is a lead for transmitting electric power or information from one place to another place.

The existing radio frequency coaxial cable has weak pressure resistance, low tensile strength and poor toughness, so that when the cable is subjected to external pressure, tension and torsional force in the using process, the internal structure of the cable is easy to damage, the normal use of the cable is influenced, and even safety accidents such as fire, electric shock and the like are caused.

To above technical problem, the utility model discloses a millimeter wave semi-soft radio frequency coaxial cable, the utility model has the advantages of the compressive property of improvement cable, the tensile strength who improves the cable, the toughness of improvement cable, the life of extension cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a millimeter wave semi-soft radio frequency coaxial cable to solve among the prior art radio frequency coaxial cable's compressive capacity weak, tensile strength is low, and toughness is poor, thereby at the in-process that uses, the cable is when receiving external pressure, pulling force and torsional force, and its inner structure is damaged easily, thereby has influenced the normal use of cable, causes incident such as conflagration, electric shock even, the utility model has the advantages of improve the compressive property of cable, improve the tensile property of cable, improve the toughness of cable, prolong the life of cable.

The utility model discloses a following technical scheme realizes: the utility model discloses a millimeter wave semi-soft radio frequency coaxial cable, which comprises an inner conductor, a microporous polytetrafluoroethylene insulating layer, a first wrapping layer, a tinned copper wire braided shielding layer, a second wrapping layer, a fluorinated ethylene propylene sheath layer, a pressure resistant layer and an aramid fiber braided protective layer, wherein the microporous polytetrafluoroethylene insulating layer, the first wrapping layer, the tinned copper wire braided shielding layer, the second wrapping layer, the fluorinated ethylene propylene sheath layer, the pressure resistant layer and the aramid fiber braided protective layer are sequentially coated outside the inner conductor; first tensile cores and first toughening cores are arranged between the inner conductor and the microporous polytetrafluoroethylene insulating layer in a staggered mode, the first tensile cores and the first toughening cores are distributed circumferentially around the inner conductor, and the adjacent first tensile cores and the first toughening cores are attached to each other; a second tensile core is embedded in the microporous polytetrafluoroethylene insulating layer at intervals; grooves are formed in the inner side of the fluorinated ethylene propylene sheath layer at intervals, arc-shaped bearing plates are arranged in the grooves, arc openings of the arc-shaped bearing plates face the center of the inner conductor, and second toughening cores are arranged between the arc-shaped bearing plates and the second wrapping band layer; a third tensile core is embedded in the fluorinated ethylene propylene sheath layer at intervals; the anti-pressure layer is including being the resistance to compression bead that circumference distribution and interval set up and connecting the arc connecting plate of two adjacent resistance to compression beads around the inner conductor, and the width at resistance to compression bead middle part is greater than the width at both ends about the resistance to compression bead.

Preferably, in order to improve the compressive property and the toughness of cable, the second is toughed the core and is "crescent" shape, and the outside of the second is toughed the core and is closely attached with the inner wall of arc bearing plate, and the inboard of the second is toughed the core and is closely attached with the surface of second band layer, and arc bearing plate can cushion the pressure that the cable received, then the pressure is used to cushion once more on the second is toughed the core, has improved the compressive property of cable.

Preferably, in order to make the cable possess excellent waterproof performance, first band layer and second band layer all adopt the waterproofing tape to wind and form.

Preferably, in order to improve the toughness of the cable and thus improve the fatigue resistance of the cable, the first toughening core and the second toughening core are both made of thermoplastic elastomer materials.

Preferably, in order to improve the tensile property of the cable, the first tensile core, the second tensile core and the third tensile core are aramid fiber ropes.

Preferably, in order to improve the compression resistance of the cable, the compression-resistant rib, the arc-shaped connecting plate and the arc-shaped bearing plate are made of polyurethane materials.

Preferably, the third tensile cores and the arc-shaped bearing plates are arranged in a staggered manner.

The utility model has the advantages of it is following:

(1) in the utility model, the first tensile core and the first toughening core are arranged between the inner conductor and the microporous polytetrafluoroethylene insulating layer in a staggered manner, the first tensile core and the first toughening core are distributed circumferentially around the inner conductor, the adjacent first tensile core and the first toughening core are mutually attached, the second tensile core is embedded in the microporous polytetrafluoroethylene insulating layer, the third tensile core is embedded in the fluorinated ethylene propylene sheath layer, and the second toughening core is arranged between the arc-shaped bearing plate and the second sheath layer, so that the tensile property and the toughness of the cable are obviously improved, and the service life of the cable is prolonged;

(2) in the utility model, the inner side of the fluorinated ethylene propylene sheath layer is provided with a groove at intervals, an arc-shaped pressure-bearing plate is arranged in the groove, the outer part of the fluorinated ethylene propylene sheath layer is provided with a pressure-resistant layer, the pressure-resistant layer comprises pressure-resistant ribs which are circumferentially distributed around the inner conductor and arc-shaped connecting plates which are connected with two adjacent pressure-resistant ribs, and the width of the middle part of each pressure-resistant rib is greater than the widths of the upper end and the lower end of each pressure-resistant rib, so that the pressure applied to the cable can be well buffered, the pressure-resistant performance of the cable is improved, and;

(3) the utility model discloses in, first band layer all adopts the waterproofing area to form around the package with second band layer to make the cable possess excellent waterproof performance.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

fig. 2 is a cross-sectional view of a sheath layer of fluorinated ethylene propylene.

In the figure: 1. an inner conductor; 2. a microporous polytetrafluoroethylene insulating layer; 21. a second tensile core; 3. a first wrapping layer; 4. a tinned copper wire braided shielding layer; 5. a second band layer; 6. a fluorinated ethylene propylene sheath layer; 61. a groove; 62. a third tensile core; 7. a pressure resistant layer; 71. compression-resistant ribs; 72. an arc-shaped connecting plate; 8. an aramid fiber woven protective layer; 9. a first tensile core; 10. A first toughening core; 100. an arc-shaped bearing plate; 110. a second toughening core.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example 1

Embodiment 1 discloses a millimeter wave semi-flexible radio frequency coaxial cable, as shown in fig. 1, which comprises an inner conductor 1, and a microporous polytetrafluoroethylene insulating layer 2, a first wrapping layer 3, a tinned copper wire braided shielding layer 4, a second wrapping layer 5, a fluorinated ethylene propylene sheath layer 6, a compression-resistant layer 7 and an aramid fiber braided protective layer 8 which are sequentially wrapped outside the inner conductor 1, wherein the inner conductor 1 is a tinned copper stranded wire, and the first wrapping layer 3 and the second wrapping layer 5 are both formed by wrapping a water-blocking tape; first tensile cores 9 and first toughening cores 10 are arranged between the inner conductor 1 and the microporous polytetrafluoroethylene insulating layer 2 in a staggered mode, the first tensile cores 9 and the first toughening cores 10 are circumferentially distributed around the inner conductor 1, and the adjacent first tensile cores 9 and the first toughening cores 10 are mutually attached; a second tensile core 21 is embedded in the microporous polytetrafluoroethylene insulating layer 2 at intervals; as shown in fig. 1 and 2, grooves 61 are formed at intervals on the inner side of the fluorinated ethylene propylene sheath layer 6, an arc-shaped bearing plate 100 is arranged in each groove 61, an arc opening of the arc-shaped bearing plate 100 faces the center of the inner conductor 1, a second toughening core 110 is arranged between the arc-shaped bearing plate 100 and the second wrapping layer 5, the second toughening core 110 is in a crescent shape, the outer side of the second toughening core 110 is closely attached to the inner wall of the arc-shaped bearing plate 100, the inner side of the second toughening core 110 is closely attached to the outer surface of the second wrapping layer 5, and the first toughening core 10 and the second toughening core 110 are both made of thermoplastic elastomer materials; third tensile cores 62 are embedded in the fluorinated ethylene propylene sheath layer 6 at intervals, the third tensile cores 62 and the arc-shaped pressure bearing plates 100 are arranged in a staggered mode, and the first tensile core 9, the second tensile core 21 and the third tensile cores 62 are aramid fiber ropes; the anti-pressure layer 7 comprises anti-pressure convex ridges 71 which are circumferentially distributed and arranged at intervals around the inner conductor 1 and arc-shaped connecting plates 72 which are connected with two adjacent anti-pressure convex ridges 71, the width of the middle parts of the anti-pressure convex ridges 71 is larger than the widths of the upper end and the lower end of the anti-pressure convex ridges 71, and the anti-pressure convex ridges 71, the arc-shaped connecting plates 72 and the arc-shaped pressure bearing plates 100 are all made of polyurethane materials.

The principle of the utility model is as follows: in the utility model, the first tensile core 9 and the first toughening core 10 are arranged between the inner conductor 1 and the microporous polytetrafluoroethylene insulating layer 2 in a staggered manner, the first tensile core 9 and the first toughening core 10 are distributed circumferentially around the inner conductor 1, and the adjacent first tensile core 9 and the first toughening core 10 are mutually attached tightly, the second tensile core 21 is embedded in the microporous polytetrafluoroethylene insulating layer 2, the third tensile core 62 is embedded in the perfluorinated ethylene propylene sheath layer 6, and the second toughening core 110 is arranged between the arc-shaped bearing plate 100 and the second wrapping layer 5, so that the tensile property and the toughness of the cable are obviously improved, and the service life of the cable is prolonged; in the utility model, the inner side of the fluorinated ethylene propylene sheath layer 6 is provided with a groove 61 at intervals, an arc-shaped bearing plate 100 is arranged in the groove 61, the outer part of the fluorinated ethylene propylene sheath layer 6 is provided with a pressure-resistant layer 7, the pressure-resistant layer 7 comprises a pressure-resistant rib 71 which is arranged at intervals and is circumferentially distributed around the inner conductor 1 and an arc-shaped connecting plate 72 which is connected with two adjacent pressure-resistant ribs 71, the width of the middle part of the pressure-resistant rib 71 is greater than the widths of the upper end and the lower end of the pressure-resistant rib 71, so that the pressure on the cable can be well buffered, the pressure-resistant performance of the cable is improved, and the service life of the cable is prolonged; the utility model discloses in, first band layer 3 all adopts the waterproofing area to form around the package with second band layer 5 to make the cable possess excellent waterproof performance.

Claims

1. A millimeter wave semi-flexible radio frequency coaxial cable is characterized by comprising an inner conductor, a microporous polytetrafluoroethylene insulating layer, a first wrapping layer, a tinned copper wire braided shielding layer, a second wrapping layer, a polyfluorinated ethylene propylene sheath layer, a pressure-resistant layer and an aramid fiber braided protective layer, wherein the microporous polytetrafluoroethylene insulating layer, the first wrapping layer, the tinned copper wire braided shielding layer, the second wrapping layer, the polyfluorinated ethylene propylene sheath layer, the pressure-resistant layer and the aramid fiber braided protective layer are sequentially wrapped outside the inner conductor, and the inner conductor is a tinned copper stranded wire;

first tensile cores and first toughening cores are arranged between the inner conductor and the microporous polytetrafluoroethylene insulating layer in a staggered mode, the first tensile cores and the first toughening cores are distributed circumferentially around the inner conductor, and the adjacent first tensile cores and the first toughening cores are attached to each other;

a second tensile core is embedded in the microporous polytetrafluoroethylene insulating layer at intervals;

grooves are formed in the inner side of the fluorinated ethylene propylene sheath layer at intervals, arc-shaped pressure bearing plates are arranged in the grooves, arc openings of the arc-shaped pressure bearing plates face the center of the inner conductor, and second toughening cores are arranged between the arc-shaped pressure bearing plates and the second wrapping belt layer;

a third tensile core is embedded in the fluorinated ethylene propylene sheath layer at intervals;

the anti-pressure layer includes around the inner conductor is the resistance to compression bead that circumference distribution and interval set up and connects adjacent two the arc connecting plate of resistance to compression bead, the width at resistance to compression bead middle part is greater than the width at both ends about the resistance to compression bead.

2. The millimeter wave semi-flexible radio frequency coaxial cable according to claim 1, wherein the second toughening core is crescent-shaped, the outer side of the second toughening core is tightly attached to the inner wall of the arc-shaped bearing plate, and the inner side of the second toughening core is tightly attached to the outer surface of the second wrapping layer.

3. The millimeter wave semi-flexible radio frequency coaxial cable according to claim 1, wherein the first and second wrapping layers are wrapped with a water blocking tape.

4. The millimeter wave semi-flexible radio frequency coaxial cable of claim 1, wherein the first toughening core and the second toughening core are both made of a thermoplastic elastomer material.

5. The millimeter wave semi-flexible radio frequency coaxial cable of claim 1, wherein the first tensile core, the second tensile core and the third tensile core are aramid fiber ropes.

6. The millimeter wave semi-flexible radio frequency coaxial cable according to claim 1, wherein the compression-resistant rib, the arc-shaped connecting plate and the arc-shaped bearing plate are made of polyurethane material.

7. The millimeter wave semi-flexible radio frequency coaxial cable according to claim 1, wherein the third tensile cores are staggered with the arc-shaped bearing plates.