CN114596995B

CN114596995B - Low-loss flexible feeder coaxial cable applied to 5G room division

Info

Publication number: CN114596995B
Application number: CN202210262279.5A
Authority: CN
Inventors: 宋海燕; 刘斌; 王惠兵; 崔国强; 屠伟华; 朱健; 周祎
Original assignee: Jiangsu Hengxin Technology Co Ltd
Current assignee: Jiangsu Hengxin Technology Co Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-12-02
Anticipated expiration: 2042-03-17
Also published as: WO2023173830A9; CN114596995A; WO2023173830A1

Abstract

The invention discloses a low-loss flexible feeder coaxial cable applied to 5G room division, which comprises an inner conductor layer, an insulating layer, an outer conductor layer and a sheath layer which are sequentially arranged from inside to outside, wherein the inner conductor layer, the insulating layer, the outer conductor layer and the sheath layer are coaxially arranged and mutually connected, the outer conductor layer and the inner conductor layer are both in a regular spiral corrugated copper pipe structure, and the insulating layer is a polyolefin foaming insulating layer with large foaming degree. Is suitable for the technical field of coaxial cables.

Description

Low-loss flexible feeder coaxial cable applied to 5G room division

Technical Field

The invention relates to the technical field of coaxial cables, in particular to a low-loss flexible feeder coaxial cable applied to 5G room division.

Background

Feeder coaxial cables are applied to the field of wireless communication and are widely applied to indoor wireless signal coverage. The structure of coaxial cables covered with indoor signals is currently applied: the inner and outer conductors are made of solid copper clad aluminum or air copper pipes, the insulation is made of foamed polyethylene, the outer conductor is made of annular embossed copper pipes, and the specific product models are HCAAYZ-50-12 and HCTAYZ-50-22. The two types of cables have the following problems when applied to 5G signal coverage: although the HCAAYZ-50-12 cable meets the use frequency range of 0-6 GHz, the HCAAYZ-50-12 cable is not suitable for being used as a 5G high-frequency signal transmission line due to small structure size, large attenuation of high-frequency transmission signals and short transmission distance; the HCTAYZ-50-22 has a relatively large structural size, so that the use frequency is limited, the large structural size of the cable has bending performance, the cable is difficult to mount and arrange, and the cable is not suitable for being used as a transmission line of 5G high-frequency signals, so that a low-loss flexible feeder coaxial cable applied to a 5G room is provided to solve the problems.

Disclosure of Invention

The invention provides a low-loss flexible feeder coaxial cable applied to a 5G room divider, which aims to solve the problems in the background technology.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a be applied to low flexible feeder coaxial cable that decreases that 5G room divides, the key point lies in, includes inner conductor layer, insulating layer, outer conductor layer and the restrictive coating that sets gradually from inside to outside, inner conductor layer, insulating layer, outer conductor layer and the coaxial setting of restrictive coating and interconnect, outer conductor layer and inner conductor layer are regular spiral embossing copper tubular construction, the insulating layer is big foaming degree polyolefin foaming insulating layer.

Furthermore, a plurality of groups of protection mechanisms for preventing the sheath layer from being worn by moving transversely are distributed on the outer surface of the sheath layer at intervals along the axial direction of the sheath layer.

Further, protection machanism includes the pivot of a plurality of along the circumference interval distribution of restrictive coating, the axial of pivot is unanimous with the axial of restrictive coating, the quantity of pivot is four, and each pivot rotates with the restrictive coating to be connected.

Further, the spiral pipeline has been cup jointed to the outside of restrictive coating coaxial, the restrictive coating can slide along the axial of spiral pipeline to constitute the dismouting of restrictive coating and spiral pipeline.

Furthermore, the outer wall of the spiral pipeline is rotatably connected with a plurality of balls, the balls are distributed at intervals along the spiral line of the spiral pipeline, and the balls are in contact with the ground.

Furthermore, four bar-shaped sliding grooves are formed in the outer wall of the sheath layer along the radial direction of the outer wall, the bar-shaped sliding grooves are distributed along the circumferential direction of the sheath layer at intervals, and four bar-shaped sliding blocks which are connected with the bar-shaped sliding grooves in a sliding mode are fixedly connected to the inner wall of the spiral pipeline.

Furthermore, a limiting assembly used for limiting the mutual movement between the bar-shaped sliding block and the sheath layer is constructed between the bar-shaped sliding block and the sheath layer.

Further, the bar spout is T type spout, the bar slider is the T type slider with T type spout looks adaptation, spacing subassembly is including seting up the slide opening in one of them T type slider, in slide opening just there is elastic fixture block, two in the both sides of slide opening sliding connection respectively elastic fixture block, two link firmly through first spring between the elastic fixture block, stopper and fixed block have been linked firmly respectively to the upper end and the lower extreme of elastic fixture block, spacing groove has been seted up respectively on the both sides wall of T type spout, two the stopper of elastic fixture block can be played to spacing inslot under the elasticity of first spring to constitute fixed between bar slider and the restrictive coating.

Further, the quantity of helical pipeline is a plurality of, and two adjacent helical pipeline head and the tail can be dismantled and connect and be a whole, the draw-in groove has been seted up to helical pipeline's one end, and the other end has linked firmly the connecting block, the fixed slot has been seted up on the connecting block, the spring catch lever has been linked firmly through the second spring on the lateral wall of connecting block, one of which helical pipeline's one end inserts in the connecting block of another spiral pipe, the spring catch lever passes fixed slot and draw-in groove under the elasticity of second spring to constitute two adjacent helical pipeline's fixed

The beneficial effects are that:

the invention adopts the structure, compared with the prior art, the invention comprises an inner conductor layer, an insulating layer, an outer conductor layer and a sheath layer which are sequentially arranged from inside to outside, wherein the inner conductor layer, the insulating layer, the outer conductor layer and the sheath layer are coaxially arranged and mutually connected, the outer conductor layer and the inner conductor layer are both in a regular spiral corrugated copper pipe structure, and the insulating layer is a large-foaming-degree polyolefin foaming insulating layer; the outer conductor layer and the inner conductor layer are both of regular spiral corrugated copper tube structures, so that the transmission performance is good, the oxidation is difficult, in addition, the enough stretching space is provided in the bending process, the bending performance of the cable bending device is optimized, the cable bending device has the advantage of convenient cable arrangement, and the spiral corrugated copper tube structures are adopted for the outer conductor layer and the inner conductor layer, so that the attenuation coefficient of the cable bending device is reduced; the insulating dielectric constant of the invention can be reduced by arranging the insulating layer as a polyolefin foaming insulating layer with large foaming degree, thereby realizing the purpose of reducing the transmission loss of the invention; the invention can keep lower direct current resistance and lower insulating dielectric constant, not only greatly reduces the transmission loss of the invention, but also optimizes the bending performance of the invention.

Drawings

The following detailed description of embodiments of the present application is provided in conjunction with the appended drawings, wherein:

in the drawings:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a connection between a sheath layer and a spiral pipeline according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a side view of an embodiment of the present invention;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is a cross-sectional view of two adjacent helical piping connections according to an embodiment of the present invention;

fig. 8 is an exploded view of a jacket layer and a spiral duct according to an embodiment of the present invention.

In the figure: 1. an inner conductor layer; 2. an insulating layer; 3. an outer conductor layer; 4. a sheath layer; 5. a rotating shaft; 6. a helical conduit; 7. a ball bearing; 8. a strip-shaped chute; 9. a bar-shaped slider; 10. a slide hole; 11. an elastic clamping block; 12. a first spring; 13. a limiting block; 14. a fixed block; 15. a limiting groove; 16. a card slot; 17. connecting blocks; 18. fixing grooves; 19. a second spring; 20. the spring clamps the pole.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the embodiments of the present application, the embodiments of the present application are described in detail below with reference to the drawings, and the description in this section is only exemplary and explanatory, and should not have any limiting effect on the scope of the embodiments of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that a product of the embodiments of the present application is usually placed in when used, and are only used for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-8, the present embodiment discloses a low-loss flexible feeder coaxial cable applied to 5G indoor separation, which includes an inner conductor layer 1, an insulating layer 2, an outer conductor layer 3, and a sheath layer 4, which are sequentially disposed from inside to outside, wherein the inner conductor layer 1, the insulating layer 2, the outer conductor layer 3, and the sheath layer 4 are coaxially disposed and connected to each other, the outer conductor layer 3 and the inner conductor layer 1 are both of a regular spiral corrugated copper pipe structure, and the insulating layer 2 is a large foaming polyolefin foaming insulating layer; in the embodiment, the outer conductor layer 3 and the inner conductor layer 1 are both of regular spiral corrugated copper tube structures, so that the transmission performance is good, the oxidation is not easy, in addition, the embodiment has enough stretching space in the bending process, the bending performance of the embodiment is optimized, and the advantage of convenient wire arrangement is realized, in addition, the outer conductor layer 3 and the inner conductor layer 1 adopt the spiral corrugated copper tube structures, and the attenuation coefficient of the embodiment is reduced; by arranging the insulating layer 2 as a polyolefin foamed insulating layer with a large foaming degree, the insulating dielectric constant of the embodiment can be reduced, thereby achieving the purpose of reducing the transmission loss of the invention; the embodiment can keep lower direct current resistance and lower insulating dielectric constant, not only greatly reduces the transmission loss of the embodiment, but also optimizes the bending performance of the embodiment.

In this embodiment, there are multiunit protection machanism along its axis direction interval distribution on the surface of restrictive coating 4, protection machanism is used for preventing the wearing and tearing when restrictive coating 4 lateral shifting, it is specific, protection machanism includes a plurality of pivot 5 along the circumference interval distribution of restrictive coating 4, the axis direction of pivot 5 is unanimous with the axis direction of restrictive coating 4, the quantity of pivot 5 is four, and each pivot 5 rotates with restrictive coating 4 and is connected, through setting up pivot 5, when this embodiment is subaerial lateral shifting, pivot 5 rolls subaerial, thereby can alleviate the wearing and tearing of restrictive coating 4.

In the embodiment, the spiral pipeline 6 is coaxially sleeved on the outer side of the sheath layer 4, and the sheath layer 4 can slide along the axial direction of the spiral pipeline 6, so that the sheath layer 4 and the spiral pipeline 6 can be conveniently disassembled and assembled; specifically, the outer wall of the spiral pipeline 6 is rotatably connected with a plurality of balls 7, the balls 7 are distributed at intervals along the spiral line of the spiral pipeline 6, and the balls 7 are in contact with the ground, the spiral pipeline 6 is arranged in the embodiment, so that the jacket layer 4 is prevented from being worn when the embodiment moves, the balls 7 are arranged, the embodiment can move left and right to reduce resistance, the resistance can also be reduced when the spiral pipeline moves back and forth, and the wear of the jacket layer 4 and the ground is reduced when the spiral pipeline is adjusted through multi-angle movement; through setting up helical piping 6, have certain supporting role to restrictive coating 4 to thereby having and preventing to be pressed the phenomenon that leads to damaging and taking place, the protecting effect is good.

In this embodiment, four strip-shaped sliding grooves 8 are formed in the outer wall of the sheath layer 4 inwards along the diameter direction of the sheath layer, the strip-shaped sliding grooves 8 are distributed at intervals along the circumferential direction of the sheath layer 4, four strip-shaped sliding blocks 9 which are respectively connected with the strip-shaped sliding grooves 8 in a sliding manner are fixedly connected to the inner wall of the spiral pipeline 6, and the strip-shaped sliding grooves 8 and the strip-shaped sliding blocks 9 are arranged to facilitate sliding assembly and disassembly of the two; a limiting assembly is constructed between one of the strip-shaped sliding blocks 9 and the sheath layer 4 and used for limiting the movement between the strip-shaped sliding blocks 9 and the sheath layer 4, the strip-shaped sliding grooves 8 are T-shaped sliding grooves, the strip-shaped sliding blocks 9 are T-shaped sliding blocks matched with the T-shaped sliding grooves, the limiting assembly comprises sliding holes 10 formed in one of the T-shaped sliding blocks, elastic clamping blocks 11 are respectively connected in the sliding holes 10 in a sliding mode and on two sides of the sliding holes 10 in a sliding mode, the two elastic clamping blocks 11 are fixedly connected through first springs 12, the upper ends and the lower ends of the elastic clamping blocks 11 are respectively fixedly connected with limiting blocks 13 and fixing blocks 14, limiting grooves 15 are respectively formed in two side walls of the T-shaped sliding grooves, the limiting blocks 13 of the two elastic clamping blocks 11 can be sprung into the limiting grooves 15 under the elasticity of the first springs 12, and therefore the strip-shaped sliding blocks 9 and the sheath layer 4 are fixed; overcome the inside movement of the elasticity of first spring 12 through two fixed blocks 14 of extrusion for two elasticity fixture blocks 11 are close to each other, and stopper 13 breaks away from spacing groove 15, thereby removes the fixed of bar slider 9 and restrictive coating 4.

The quantity of the spiral pipeline 6 of this embodiment can be a plurality of, 6 head and the tail of two adjacent spiral pipeline can be dismantled and connect as a whole, according to actual conditions, can dock a plurality of spiral pipeline 6, thereby can adjust according to the length of restrictive coating 4, it is specific, draw-in groove 16 has been seted up to the one end of spiral pipeline 6, other end fixedly connected with connecting block 17, fixed slot 18 has been seted up on connecting block 17, through 19 fixedly connected with spring catch bar 20 of second spring on connecting block 17's the lateral wall, the one end of one of them spiral pipeline 6 is inserted in the connecting block 17 of another spiral pipeline 6, spring catch bar 20 passes fixed slot 18 and draw-in groove 16 under the elasticity of second spring 19, thereby realize two adjacent spiral pipeline 6's fixed.

The above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the same, and any modification or equivalent replacement without departing from the spirit and scope of the embodiments of the present application should be covered within the technical solutions of the present application.

Claims

1. The utility model provides a be applied to low-loss flexible feeder coaxial cable of 5G room branch which characterized in that: the cable comprises an inner conductor layer (1), an insulating layer (2), an outer conductor layer (3) and a sheath layer (4) which are sequentially arranged from inside to outside, wherein the inner conductor layer (1), the insulating layer (2), the outer conductor layer (3) and the sheath layer (4) are coaxially arranged and are mutually connected, the outer conductor layer (3) and the inner conductor layer (1) are both in a regular spiral-embossing copper tube structure, and the insulating layer (2) is a large-foaming-degree polyolefin foaming insulating layer;

a plurality of groups of protection mechanisms for preventing the sheath layer (4) from being worn by transverse movement are distributed on the outer surface of the sheath layer (4) at intervals along the axial direction of the sheath layer, each protection mechanism comprises a plurality of rotating shafts (5) distributed at intervals along the circumferential direction of the sheath layer (4), the axial direction of each rotating shaft (5) is consistent with the axial direction of the sheath layer (4), the number of the rotating shafts (5) is four, each rotating shaft (5) is rotatably connected with the sheath layer (4), a spiral pipeline (6) is coaxially sleeved on the outer side of the sheath layer (4), and the sheath layer (4) can slide along the axial direction of the spiral pipeline (6) to assemble and disassemble the sheath layer (4) and the spiral pipeline (6);

the outer wall of the sheath layer (4) is provided with four bar-shaped sliding grooves (8) inwards along the radial direction of the sheath layer, the bar-shaped sliding grooves (8) are distributed along the circumferential direction of the sheath layer (4) at intervals, the inner wall of the spiral pipeline (6) is fixedly connected with four bar-shaped sliding blocks (9) which are respectively connected with the bar-shaped sliding grooves (8) in a sliding mode, a limiting component used for limiting the bar-shaped sliding blocks (9) and the sheath layer (4) to move mutually is constructed between the bar-shaped sliding blocks (9) and the sheath layer (4), the bar-shaped sliding grooves (8) are T-shaped sliding grooves, the bar-shaped sliding blocks (9) are T-shaped sliding blocks matched with the T-shaped sliding grooves, the limiting component comprises sliding holes (10) formed in one T-shaped sliding block, elastic clamping blocks (11) are respectively connected in the sliding holes (10) in two sides of the sliding holes (10) in a sliding mode, the two elastic clamping blocks (11) are fixedly connected between the two elastic clamping blocks (11) through first springs (12), the upper end and the lower end of each elastic clamping block (11) are fixedly connected with a limiting block (13) and a fixing block (14), the limiting block (15) which is formed between the two elastic clamping blocks (15) and the limiting block (15) can be fixed in the protecting layer (4);

the quantity of helical tube (6) is a plurality of, and two adjacent helical tube (6) can be dismantled end to end and connect and be a whole, draw-in groove (16) have been seted up to the one end of helical tube (6), and the other end has linked firmly connecting block (17), fixed slot (18) have been seted up on connecting block (17), spring catch pole (20) have been linked firmly through second spring (19) on the lateral wall of connecting block (17), one of which the one end of helical tube (6) is inserted in connecting block (17) of another helical tube (6), spring catch pole (20) pass fixed slot (18) and draw-in groove (16) under the elasticity of second spring (19) to constitute the fixed of two adjacent helical tube (6).

2. A low loss flexible feeder coaxial cable for 5G room division applications as claimed in claim 1, wherein: the outer wall of the spiral pipeline (6) is rotatably connected with a plurality of balls (7), the balls (7) are distributed at intervals along the spiral line of the spiral pipeline (6), and the balls (7) are in contact with the ground.