CN212587241U

CN212587241U - Signal cable for outdoor communication

Info

Publication number: CN212587241U
Application number: CN202021594168.7U
Authority: CN
Inventors: 朱小梅
Original assignee: United Electric Wire Kunshan Co ltd
Current assignee: United Electric Wire Kunshan Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-02-23
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses signal cable for outdoor communication adopts first pair of hank group, second pair of hank group and packing heart yearn to hank mutually and winds, has set gradually flexible protective layer, insulating layer and third sheath from inside to outside, adds the compound line that a set of low frequency control line constitutes by three groups of network lines, and the aluminium foil wheat draws the layer and draws and make with the aluminium foil material by wheat, and the laminated structure that constitutes is the plastic-aluminum complex film, has higher intensity and insulating nature; the application of the thicker insulating layer when the lead is bent can ensure that the distance between the twisted pair group and the conductive shielding layer is changed less; the insulating material uses high-definition polyethylene, and has higher electrical insulating property; the sheath uses polyvinyl chloride, has better mechanical properties and excellent dielectric properties, and the use of specific structure can improve the sunlight resistance of signal cable for outdoor communication. The utility model discloses outdoor communication is with signal cable can satisfy the requirement of the sunlight resistance nature in the UL1581 standard and satisfy national wire and cable life standard.

Description

Signal cable for outdoor communication

Technical Field

The utility model relates to a signal cable especially relates to a signal cable is used in outdoor communication.

Background

The signal line is a communication cable for transmitting acoustic signals generated by a signal source, and is a communication line having a cable core formed by a plurality of mutually insulated wires or conductors and a protective layer on the outside. The maximum ambient temperature is typically 40 ℃ for outdoor mounted signal cables in the shade, and 50 ℃ for signal cables mounted in the sun. In using these ambient temperatures, it is assumed that the maximum load occurs exactly at the specified ambient temperature. Therefore, the outdoor communication signal cable needs to meet the requirement of sunlight resistance in the UL1581 standard and meet the national service life standard of electric wires and cables.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a signal cable for outdoor communication effectively solves the sunshine resistant demand of cable for outdoor communication and satisfies national wire and cable life standard, improves the performance of signal cable for outdoor communication.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a signal cable for outdoor communication, it includes at least one strand first wire, it includes at least a set of first pair twist group, at least a set of second pair twist group, sets up the packing heart yearn between first pair twist group and the second pair twist group, wraps up first pair twist group the second pair twist group with the flexible protective layer of packing the heart yearn, set up the insulating layer in flexible protective layer periphery and set up the third sheath in the insulating layer periphery, first pair twist group includes at least a set of third pair twist group, set up in the first wheat of third pair twist group periphery is drawn the layer and is set up the first sheath in first wheat and draw the layer periphery, every group third pair twist group includes at least a set of paired line; the second twisted pair group comprises a reinforced core, at least one group of second wires wrapped on the periphery of the reinforced core, an aluminum foil layer wrapping the reinforced core and the second wires, a second mylar layer wrapping the periphery of the aluminum foil layer and a second sheath wrapping the periphery of the second mylar layer; the second conductive line includes a second conductor and a second insulating layer.

Further, the third twisted pair group comprises a twisted pair, a first conducting wire and an insulating layer, wherein the first conducting wire comprises a first conductor and a first insulating layer, and the flexibility of the outdoor communication signal cable can be improved.

Furthermore, the twisted directions of at least one group of twisted pairs and two insulated copper wires in the twisted pairs are consistent, so that the flexibility of the outdoor communication signal cable can be improved.

Further, the first pair of twisted groups, the second pair of twisted groups and the filling core wire are concomitant in a twisted manner.

Further, the direction in which the twisted pair wires are twisted is the same as the direction in which the first twisted pair, the second twisted pair and the filler wire are twisted, so that the flexibility of the outdoor communication signal cable can be further improved.

Furthermore, the first conductor and the second conductor are both made of bare copper materials and adopt the 24AWG standard, so that the cable has better conductivity and very stable signal transmission capability.

Further, the first insulating layer, the second insulating layer, the third insulating layer and the fourth insulating layer are all made of HD-PE (high definition polyethylene) materials, the minimum thickness is 150 mu m, the high definition polyethylene materials are used for having better flexibility and higher electric insulating performance, and the distance between the pair twisting group and the conductive shielding layer can be changed less by the application of the thicker insulating layer, so that high-frequency current transmission is stabilized.

Further, the first sheath and the second sheath are both made of semi-matte PVC (polyvinyl chloride) materials, the minimum thickness is 380 mu m, and the polyvinyl chloride materials are used and have good mechanical properties and excellent dielectric properties.

Further, the third sheath is made of semi-matte PVC (ultraviolet-resistant) material and has a minimum thickness of 760 μm, and the use of the polyvinyl chloride material has good mechanical properties and excellent dielectric properties and is ultraviolet-resistant.

Further, the coverage of the flexible protective layer and the insulating layer to 100% overlap is at least 25%, which can reduce the high frequency attenuation to a greater extent.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses signal cable for outdoor communication adopts first pair of hank group, second pair of hank group and packing heart yearn to hank mutually and winds, has set gradually flexible protective layer, insulating layer and third sheath from inside to outside, adds the compound line that a set of low frequency control line constitutes by three sets of network lines, and aluminium foil wheat draws the layer and draws and make with the aluminium foil material by wheat, and the laminated structure of component is the plastic-aluminum complex film, has higher intensity and insulating nature, resistant sunshine performance; the application of the thicker insulating layer when the lead is bent can reduce the distance change between the twisted pair group and the conductive shielding layer and improve the sunlight resistance of the signal cable for outdoor communication; the insulating material uses high-definition polyethylene, and has higher electrical insulating property; the sheath is made of polyvinyl chloride, so that the cable has good mechanical property and excellent dielectric property, and the sunlight resistance of the signal cable for outdoor communication is further improved. Therefore, the outdoor communication signal cable can meet the requirement of sunlight resistance in the UL1581 standard and can meet the national service life standard of electric wires and cables.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is an overall schematic view of a preferred embodiment of the signal cable for outdoor communication according to the present invention;

FIG. 2 is a schematic view of a third pair of twisted pairs according to the present invention;

fig. 3 is a schematic view of a second pair of twisting units according to the present invention.

Wherein the reference numerals are as follows:

1. a first pair of twisted sets; 11. a third twisted pair group; 111. a twisted pair; 112. a first conductive line; 1121. A first conductor; 1122. a first insulating layer; 113. a third insulating layer; 12. a first mylar layer; 13. a first sheath;

2. a second pair of twisted groups; 21. a second conductive line; 211. A second conductor; 212. a second insulating layer; 22. a reinforcing core; 23. an aluminum foil layer; 24. a second mylar layer; 25. a second sheath.

3. Filling a core wire;

4. a flexible protective layer;

5. a fourth insulating layer;

6. a third sheath;

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The invention will be further described with reference to specific embodiments.

A signal cable for outdoor communication generally includes a first twisted pair group 1, a second twisted pair group 2, a filler core 3, a flexible protective layer 4, a fourth insulation layer 5, and a third jacket 6. The first twisted pair group 1 and the second twisted pair group 2 mainly perform a signal transmission function.

The first twisted pair group 1, the second twisted pair group 2 and the filling core wire 3 are twisted and wound, so that the flexibility of the signal cable for outdoor communication can be improved, and the roundness of the signal cable for outdoor communication can be ensured by applying the filling core wire 3. Flexible protective layer 4 sets up in the periphery of first pair twist group 1, second pair twist group 2 and filling heart yearn 3, sets up at the fourth insulating layer 5 of flexible protective layer 4 periphery and sets up the third sheath 6 in fourth insulating layer 5 periphery, and the use of high definition polyethylene material has better compliance and higher electric insulating property, and the application of thick insulating layer can make the distance change between pair twist group and the conductive shielding layer littleer to stable high frequency current transmission. In other embodiments, the fourth insulation layer 5 may be made of an insulating material. The flexible protective layer 4 is made of tissue paper or non-woven fabric to protect the third sheath 6 from the fourth insulating layer 5. The third sheath 6 is made of polyvinyl chloride, has good mechanical property and excellent dielectric property, and is used for protecting signal cables for outdoor communication. In the present embodiment, the first twisted pair group 1 is provided with 3 groups, and the second twisted pair group 2 is provided with 1 group. In other embodiments, the number of the first twisted group 2 is not limited to 3 groups, and the number of the second twisted group 2 is not limited to 1 group, and the number thereof is not limited, and is set according to actual needs.

The first pair of twist groups 1 comprise a third pair of twist groups 11, a first Mylar layer 12 arranged on the periphery of the third pair of twist groups 11, and a first sheath arranged on the periphery of the first Mylar layer 12. The first mylar layer 12 serves as a shielding layer, which can effectively prevent the inside and outside of the shielding layer from interfering with each other. The first sheath 13 is made of polyvinyl chloride, has good mechanical properties and excellent dielectric properties, and is used for protecting the third twisted pair 11. Each third twisted pair group 11 includes at least one twisted pair 111; the twisted pair 111 is a transmission medium most commonly used in the integrated wiring engineering, and is composed of two copper wires with an insulation protection layer. Two insulated copper wires are twisted together according to a certain density, and the electric wave radiated by each wire in transmission can be counteracted by the electric wave emitted by the other wire, thereby effectively reducing the degree of signal interference. The twisted pair 111 and the two insulated copper wires inside the twisted pair 111 are twisted in the same direction, and the flexibility of the outdoor communication signal cable can be improved. The third twisted pair 11 further includes a first conductive line 112 and a third insulating layer 113, and the first conductive line 112 includes a first conductor 1121 and a first insulating layer 1122. The first conductor 112 is made of a bare copper material, and has good electrical conductivity and very stable signal transmission capability. In other embodiments, the first conductor 1121 can be made of other conductive materials. The insulating layer is made of high-definition polyethylene material, and has good flexibility and high electrical insulating property.

In the present embodiment, the first twisted pair 1 is provided with 3 groups, and in other embodiments, the first twisted pair 1 is not limited to 3 groups, and the number thereof is not limited, and is set according to actual needs.

The second twisted pair group 2 comprises a reinforced core 22, the reinforced core 22 can be made by winding one or more high-toughness Kevlar twisted strands so as to increase the flexibility of the cable, the reinforced core 22 can also be made of polyester yarns and cotton yarns, at least one group of second wires 21 is arranged on the periphery of the reinforced core 22, and the first conductor 1121 is made of a bare copper material and has better conductivity and very stable signal transmission capability. An aluminum foil layer wrapping the reinforcing core and the second conductive wire 21, a second mylar layer 12 wrapping the outer periphery of the aluminum foil layer 23, and a second sheath 25 wrapping the outer periphery of the second mylar layer 24; the second conductive line 21 includes a second conductor 211 and a second insulating layer 212. The aluminum foil mylar layer is made of mylar and aluminum foil materials, and the formed laminated structure, namely the aluminum-plastic composite film, has higher strength and insulativity. Mylar is a polyester film, the coverage rate of the aluminum foil Mylar layer reaches 100%, the overlapping rate is 25% at least, and high-frequency attenuation can be reduced to the maximum extent. When the overlapping proportion of the aluminum foil mylar layer is 25% or more, the covering performance of the aluminum foil layer is better when the flame-retardant signal cable for buildings is subjected to multi-directional bending and twisting. The first twisted pair group 1, the second twisted pair group 2 and the filling core wire 3 are matched in a twisted manner, so that the flexibility of the signal cable for outdoor communication can be improved.

The twisted direction among the twisted pairs is the same as the twisted direction of the first twisted group 1, the second twisted group 2 and the filling core 3, and the flexibility of the outdoor communication signal cable can be further improved.

In this embodiment, the second twisted pair group 2 is provided with 1 group, and in other embodiments, the second twisted pair group 2 is not limited to 1 group, and the number thereof is not limited, and is set according to actual needs.

The first insulating layer 1122, the second insulating layer 212, the third insulating layer 113 and the fourth insulating layer 5 are all made of HD-PE materials, the minimum thickness is 150 micrometers, high-definition polyethylene materials are used, the flexibility is good, the electric insulating performance is high, the distance between the pair twisting group and the conductive shielding layer can be changed slightly due to the application of the thicker insulating layer, and therefore high-frequency current transmission is stable.

The first sheath 13 is made of a semi-matt PVC (polyvinyl chloride) material and has a minimum thickness of 380 μm. The polyvinyl chloride material has better mechanical property and excellent dielectric property, and is used for protecting the first twisted group 1.

The third sheath 6 is made of a semi-matt PVC (ultraviolet resistant) material and has a minimum thickness of 760 μm. The polyvinyl chloride material has good mechanical property and excellent dielectric property, and the third sheath 6 is arranged on the outermost layer of the signal cable for outdoor communication and is used for protecting the signal cable for outdoor communication. The third sheath 6 mainly protects other members wrapped inside it, such as water, dust, and external impact.

The signal cable for outdoor communication of the present embodiment has good performance: by adopting the standard of YD/T1019-2001, the resistance is the largest at 20 ℃, the resistance value of 24AWG specification is 94.2 omega/km, and the resistance value of 26AWG specification is 150 omega/km. The signal cable for outdoor communication complies with the RoHS standard, which is a mandatory standard established by the european union legislation. The flame test can reach the flame resistance rating that vw-1 is the electric wire.

The utility model discloses signal cable is used mainly in the signal line for base station communication for outdoor communication, and the base station is a form of radio station for public mobile communication base station promptly, indicates in certain radio coverage area, through mobile communication switching center, and the radio transceiver station who carries out information transfer between the mobile phone terminal, and the main function of base station is just providing wireless coverage, realizes the radio signal transmission between wired communication network and the wireless terminal promptly. The communication base station is the most critical infrastructure in a mobile communication network. The mobile communication base station has machine room, electric wire, iron tower mast and other structural parts, and the machine room is provided with signal transceiver, monitoring device, fire extinguisher, power supply equipment, air conditioner, tower pole, lightning grounding system, tower, foundation, support, cable, auxiliary equipment and other parts. The line is used for receiving and transmitting network signals. Namely, wireless signal transmission between the wired communication network and the wireless terminal is realized.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A signal cable for outdoor communication, characterized in that: the cable comprises at least one first twisted pair group (1), at least one second twisted pair group (2), a filling core wire (3) arranged between the first twisted pair group (1) and the second twisted pair group (2), a flexible protective layer (4) wrapping the first twisted pair group (1), the second twisted pair group (2) and the filling core wire (3), a fourth insulating layer (5) arranged on the periphery of the flexible protective layer (4) and a third sheath (6) arranged on the periphery of the fourth insulating layer (5), wherein the first twisted pair group (1) comprises at least one third twisted pair group (11), a first wheat pulling layer (12) arranged on the periphery of the third twisted pair group (11) and a first sheath (13) arranged on the periphery of the first wheat pulling layer (12), and each third twisted pair group (11) comprises at least one twisted pair (111); the second twisted pair group (2) comprises a reinforced core (22), at least one group of second conducting wires (21) wrapped on the periphery of the reinforced core (22), an aluminum foil layer (23) wrapping the reinforced core (22) and the second conducting wires (21), a second mylar layer (24) wrapped on the periphery of the aluminum foil layer (23) and a second sheath (25) wrapped on the periphery of the second mylar layer (24); the second conductive line (21) includes a second conductor (211) and a second insulating layer (212).

2. The signal cable for outdoor communication according to claim 1, wherein: the third twisted pair (11) includes a twisted pair (111), a first wire (112), and a third insulating layer (113), and the first wire (112) includes a first conductor (1121) and a first insulating layer (1122).

3. The signal cable for outdoor communication according to claim 1, wherein: at least one group of the twisted pairs (111) is twisted with two insulated copper wires in the twisted pairs (111).

4. The signal cable for outdoor communication according to claim 1, wherein: the first pair of twisting groups (1), the second pair of twisting groups (2) and the filling core wires (3) are in mutual accompaniment in a twisting and winding mode.

5. The signal cable for outdoor communication according to claim 1, wherein: the twisting direction among the twisted pairs (111) is consistent with the twisting direction of the first twisted pair group (1), the second twisted pair group (2) and the filling core wire (3).

6. The signal cable for outdoor communication according to claim 2, wherein: the first conductor (1121) and the second conductor (211) are both made of a bare copper material and adopt a 24AWG standard.

7. The signal cable for outdoor communication according to claim 2, wherein: the first insulating layer (1122), the second insulating layer (212), the third insulating layer (113) and the fourth insulating layer (5) are all made of HD-PE material and have a minimum thickness of 150 μm.

8. The signal cable for outdoor communication according to claim 1, wherein: the first sheath (13) and the second sheath (25) are both made of semi-matte PVC material and have a minimum thickness of 380 mu m.

9. The signal cable for outdoor communication according to claim 1, wherein: the third sheath (6) is made of semi-matt PVC material and has a minimum thickness of 760 μm.

10. The signal cable for outdoor communication according to claim 7, wherein: the coverage of the first insulating layer (1122), the second insulating layer (212), the third insulating layer (113), the fourth insulating layer (5), and the flexible protective layer (4) reaches 100% while the overlapping ratio is at least 25%.