CN215007645U

CN215007645U - Waterproof communication cable

Info

Publication number: CN215007645U
Application number: CN202121574865.0U
Authority: CN
Inventors: 陈桥; 赖厦丰; 李雪文; 赖标铃; 戴森华
Original assignee: Lifu Fujian Photoelectric Group Co ltd
Current assignee: Lifu Fujian Photoelectric Group Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-03
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a waterproof communication cable, including sinle silk pair, sheath, water-blocking layer and oleamen obturator, the sinle silk pair includes two sinle silks of transposition each other, the sinle silk includes conductor and insulating layer, the insulating layer cladding is in the periphery of conductor, four the sinle silk pair is located in the sheath; the water-resistant layer comprises a first water-resistant layer and a second water-resistant layer, the first water-resistant layer and the second water-resistant layer are respectively arranged on the inner side and the outer side of the sheath, and the factice filling body is filled in a cavity between the wire core pair and the first water-resistant layer. The three-stage waterproof structure sequentially adopts the ointment filling body, the first waterproof layer and the second waterproof layer from inside to outside, greatly enhances the waterproof performance of the product, can be widely applied to engineering projects of outdoor and water environments, and improves the reliability of product data transmission.

Description

Waterproof communication cable

Technical Field

The utility model relates to a technical field of high reliability cable especially relates to a waterproof communication cable.

Background

The wire and cable is a wire product used for transmitting electric (magnetic) energy, information and realizing electromagnetic energy conversion. The electric wire cable in a broad sense is also called as a cable for short, and the cable in a narrow sense refers to an insulated cable which is composed of the following parts: one or more insulated wire cores, and their respective possible coatings, total protective layers and outer protective layers. The communication cable is a cable for transmitting telephone, telegraph, fax document, television and radio program, data and other electric signals, and is formed by twisting more than one pair of mutually insulated wires; the method has various laying modes such as overhead, direct burial, pipeline and underwater; the cable is divided into symmetrical, coaxial and comprehensive cables according to the structure; the communication cable has wider transmission frequency band, larger communication capacity and small external interference, but is not easy to overhaul.

When the communication cable is laid outdoors, the cable is laid in an overhead mode, and the cable is directly exposed in the air, so that the outer protective layer is easy to age after long-time wind blows and is exposed to the sun, and rainwater is easy to permeate into the cable after rainfall. In addition, in some occasions, the communication cable can be laid in water environments such as river bottom, lake bottom or seabed due to construction requirements, the communication cable is soaked in the water environment for a long time, water seepage is easy to occur inside the product, and the reliability and the service life of the product are influenced. The development of a cable which can be laid outdoors and in water environment is a powerful guarantee for improving the performance of products. In view of the above, the present inventors have studied and designed a waterproof communication cable.

SUMMERY OF THE UTILITY MODEL

The waterproof communication cable achieves the waterproof purpose by arranging the waterproof layer and the filling ointment on the periphery of the wire core, so that the service life of the product is prolonged, and the reliability of data transmission of the product in outdoor and water environments is improved.

The invention provides a waterproof communication cable, which comprises a wire core pair, a sheath, a waterproof layer and an ointment filling body, wherein the wire core pair comprises two twisted wire cores, each wire core comprises a conductor and an insulating layer, the insulating layer is coated on the periphery of the conductor, and the four wire core pairs are arranged in the sheath; the water-resistant layer comprises a first water-resistant layer and a second water-resistant layer, the first water-resistant layer and the second water-resistant layer are respectively arranged on the inner side and the outer side of the sheath, and the factice filling body is filled in a cavity between the wire core pair and the first water-resistant layer. The three-stage waterproof structure sequentially adopts the ointment filling body, the first waterproof layer and the second waterproof layer from inside to outside, greatly enhances the waterproof performance of the product, and can be widely applied to engineering projects of outdoor and water environments.

According to at least one embodiment of the present disclosure, the water-blocking layer is one or more layers of a polyester non-woven fabric composite polymer absorption resin layer. The present disclosure may provide one or more water-resistant layers depending on the particular circumstances of the installation environment to provide water protection at different levels of strength.

According to at least one embodiment of the present disclosure, the communication cable further includes a cross-shaped frame, the cross-shaped frame is disposed in the sheath, and the four pairs of wire cores are respectively disposed in four quadrants of the cross-shaped frame. The cross-shaped framework enables the communication cable to maintain a stable line pair position, reduces crosstalk and keeps impedance stable.

According to at least one embodiment of the present disclosure, the communication cable further includes a wire casing, and the four wire casings are respectively disposed in the inner cavity of the sheath and are mutually matched with the end portion of the cross-shaped framework. The wire casing that this disclosure set up can be so that cross skeleton position maintains in fixed position, prevents the off normal back, and the line is to causing the influence.

According to at least one embodiment of the present disclosure, the cross-shaped corner area of the cross-shaped framework adopts an arc-shaped transition structure, which can effectively provide sufficient supporting force for the wire core pair.

According to at least one embodiment of the present disclosure, the top surfaces of the four end portions of the cross-shaped frame adopt arc structures, the arc structures are matched with the inner side surface radians of the first waterproof layer, so that the contact area between the end portions of the cross-shaped frame and the first waterproof layer can be effectively increased, and the first waterproof layer is prevented from being physically damaged.

According to at least one embodiment of the present disclosure, the communication cable further includes a shielding layer disposed between the first water resistant layer and the jacket. The shielding layer provided by the present disclosure adopts a metal aluminum foil, and provides reliable external crosstalk resistance.

According to at least one embodiment of the present disclosure, the communication cable further includes a braid disposed between the shielding layer and the sheath. The braided layer is braided by adopting metal wires, copper wires or steel wires, and the steel wires can provide mechanical protection and bear longitudinal tensile breaking force; the copper wire can provide the shielding effect of electromagnetic interference resistance, contacts with the ground wire or acts as the ground wire, can reflect the electric leakage condition in time, and provides the shielding effect of safety protection.

According to at least one embodiment of the present disclosure, the communication cable further includes a tear cord disposed between the braid and the jacket. The tearing rope arranged in the utility model can enable the operator to peel the wire pair in the utility model more quickly and conveniently.

According to at least one embodiment of the present disclosure, air bubbles are distributed within the insulating layer. The present disclosure further improves the electrical insulation properties of the present disclosure with distributed gas bubbles.

According to at least one embodiment of the present disclosure, the communication cable further includes a reinforcing layer, and the reinforcing layer is respectively disposed between the wire core pair and the first water blocking layer, so that the wire core pair can be effectively prevented from being extruded by an external force.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural view of a waterproof communication cable of the present disclosure.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the waterproof communication cable of the present disclosure includes a core pair 1, a cross frame 2, a sheath 3, a water blocking layer 4 and an ointment filling body 5, wherein the core pair 1 includes two core 11 twisted with each other, the core 11 includes a conductor 111 and an insulating layer 112, the insulating layer 112 covers the periphery of the conductor 111, the conductor 111 preferably uses annealed oxygen-free copper, the diameter of the conductor is preferably 0.49-0.65mm, and can cover the requirements of five types of communication cables to eight types of communication cables, and the insulating layer 112 preferably uses a dow 7387 elastomer material; the cross framework 2 is arranged in the sheath 3, the four groups of wire core pairs 1 are respectively arranged in four quadrants of the cross framework 3, and the cross framework 2 enables the communication cable to maintain a stable wire pair position, thereby reducing crosstalk and keeping impedance stable; the colors of the four groups of wire core pairs 1 are respectively white blue/blue, white orange/orange, white green/green and white brown/brown; the sheath 3 preferably adopts DF605 polyolefin elastomer material, the water-proof layer 4 preferably adopts polyester non-woven fabric composite macromolecule absorption resin material, and comprises a first water-proof layer 41 and a second water-proof layer 42, the first water-proof layer 41 and the second water-proof layer 42 are respectively arranged at the inner side and the outer side of the sheath 3, and the factice filling body 5 is filled in the cavity between the wire core pair 1 and the first water-proof layer 41. The three-stage waterproof structure sequentially adopts the ointment filling body, the first waterproof layer and the second waterproof layer from inside to outside, greatly enhances the waterproof performance of the product, and can be widely applied to engineering projects of outdoor and water environments.

The waterproof layer 4 of the present disclosure is one or more layers of polyester non-woven fabric composite polymer absorption resin layers. The present disclosure may provide one or more water-resistant layers depending on the particular circumstances of the installation environment to provide water protection at different levels of strength.

The communication cable of the present disclosure further includes a shielding layer 6, and the shielding layer 6 is disposed between the first waterproof layer 41 and the sheath 3. The shielding layer 6 provided by the present disclosure adopts a metal aluminum foil, and provides reliable external crosstalk resistance.

The communication cable further comprises wire slots (not shown), wherein the four wire slots are respectively arranged on the inner side of the first waterproof layer 41 and are matched with the end part of the cross-shaped framework 2. The wire casing that this disclosure set up can be so that cross skeleton position maintains in fixed position, prevents the off normal back, and the line is to causing the influence. The cross corner area of the cross framework 2 adopts an arc-shaped transition structure 21, which can effectively provide enough supporting force for the wire core pair. The top surfaces of the four end parts of the cross-shaped framework 2 adopt the arc structures 22, the arc structures 22 are matched with the inner side surface radians of the first waterproof layer 41, the contact area between the end parts 22 of the cross-shaped framework 2 and the first waterproof layer 41 can be effectively increased, and the first waterproof layer 41 is prevented from being physically damaged.

The communication cable of the present disclosure further includes a braid 7, the braid 7 being disposed between the shielding layer 6 and the sheath 3. The braided layer is braided by adopting metal wires, copper wires or steel wires, and the steel wires can provide mechanical protection and bear longitudinal tensile breaking force; the copper wire can provide the shielding effect of electromagnetic interference resistance, contacts with the ground wire or acts as the ground wire, can reflect the electric leakage condition in time, and provides the shielding effect of safety protection.

The communication cable of the present disclosure further includes a tear cord 8, the tear cord 8 being provided between the braid 7 and the sheath 3. The tearing rope 8 arranged in the utility model can enable the operator to peel the wire pair in the utility model more quickly and conveniently.

Air bubbles are distributed within the insulating layer 112 of the present disclosure. The present disclosure further improves the electrical insulation properties of the present disclosure with distributed gas bubbles.

The communication cable of the present disclosure further includes a reinforcing layer 9, the reinforcing layer 9 is respectively disposed on the periphery of the wire core pair 1, and the wire core pair can be effectively prevented from being extruded by external force.

According to the waterproof structure, the three-stage waterproof structure comprising the ointment filling body, the first waterproof layer and the second waterproof layer is adopted from inside to outside in sequence, so that the waterproof performance of the product is greatly enhanced; the shield layer may provide reliable alien crosstalk resistance. Through the special structural design, the data transmission of the product is ensured to have high reliability. The present disclosure can be laid outdoors in water, and is suitable for overhead or direct-buried laying.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. A waterproof communication cable is characterized by comprising a wire core pair, a sheath, a waterproof layer and an ointment filling body, wherein the wire core pair comprises two twisted wire cores, each wire core comprises a conductor and an insulating layer, the insulating layer is coated on the periphery of the conductor, and the four wire core pairs are arranged in the sheath; the water-resistant layer comprises a first water-resistant layer and a second water-resistant layer, the first water-resistant layer and the second water-resistant layer are respectively arranged on the inner side and the outer side of the sheath, and the factice filling body is filled in a cavity between the wire core pair and the first water-resistant layer.

2. The communication cable according to claim 1, wherein the water-resistant layer is one or more layers of a polyester non-woven fabric composite polymer absorbent resin layer.

3. The communication cable of claim 1, further comprising a cross-frame disposed within the jacket, wherein four of the wire core pairs are disposed within four quadrants of the cross-frame, respectively.

4. The communication cable of claim 3, further comprising wire slots, four of said wire slots being disposed in said interior cavity of said sheath and cooperating with said ends of said cruciform baffle.

5. The communication cable of claim 3 wherein said cruciform baffle has an arcuate transition in its cruciform corner region.

6. The communication cable of claim 3 wherein the top surfaces of the four ends of the cross-shaped frame are arc structures that match the inner curvature of the first layer of water-blocking material.

7. The communication cable of claim 1 further comprising a shield layer disposed between said first water resistant layer and said jacket.

8. The communication cable of claim 7, further comprising a braid disposed between the shield and the jacket.

9. The communication cable of claim 1 wherein the interior of the insulating layer is interspersed with air bubbles.

10. The communication cable of claim 1, further comprising a reinforcement layer, each of the four reinforcement layers being disposed between the pair of cores and the first water-resistant layer.