Anti-electromagnetic interference communication cable

Abstract

The utility model discloses an anti-electromagnetic interference communication cable, which comprises an outer layer assembly, a middle layer assembly and an inner layer assembly, and is characterized in that the outer layer assembly comprises an insulating layer and a fireproof layer, and the fireproof layer is fixedly connected inside the insulating layer; the middle-layer assembly comprises an outer sleeve, a buffer layer, an inner sleeve and a tough layer, the circumferential surface of the outer sleeve is fixedly connected with the fireproof layer, and the inner circumferential surface of the outer sleeve is fixedly connected with the buffer layer. By arranging the insulating layer, the fireproof layer, the outer sleeve, the buffer layer, the inner sleeve, the tough layer, the outer shielding layer, the inner sleeve body, the waterproof layer, the inner shielding layer, the conductor and the grounding wire, by utilizing a multi-layer structure and arranging the outer sleeve, the buffer layer and the inner sleeve, the capacity of the cable for coping with external impact is enhanced, the toughness of the cable is improved, and the service life of the cable is prolonged. Meanwhile, the middle layer assembly, the outer shielding layer, the inner shielding layer, the grounding wire and the multiple anti-electromagnetic interference layers greatly improve the anti-electromagnetic interference capability of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an electromagnetic interference protection communication cable. Background Art

[0002] Communication cables are used to transmit telephone, telegraph, fax documents, television and radio programs, data and other electrical signals. They are made of one or more mutually insulated wires twisted together. Compared with overhead wires, communication cables have the advantages of large communication capacity, high transmission stability, good confidentiality, and less impact from natural conditions and external interference.

[0003] In the prior art, cables are generally laid underground, where they are easily corroded by various substances and impacted by the outside world, causing damage to the inner and outer layers of the cables. In addition, they are also interfered by various electromagnetic waves, which can easily cause poor signals and other phenomena. Utility Model Content

[0004] The utility model provides an electromagnetic interference protection communication cable, which utilizes a multi-layer structure and is provided with an outer sleeve, a buffer layer and an inner sleeve, thereby enhancing the cable's ability to cope with external impacts and improving the toughness of the cable. At the same time, the middle layer components, the outer shielding layer, the inner shielding layer and the grounding wire have multiple electromagnetic interference protection layers, which greatly improve the cable's electromagnetic interference protection capability.

[0005] To achieve the above object, an electromagnetic interference protection communication cable is provided, comprising: an outer layer component, a middle layer component and an inner layer component, wherein the outer layer component comprises an insulating layer and a fireproof layer, and the fireproof layer is fixedly connected to the interior of the insulating layer;

[0006] The middle layer assembly comprises an outer sleeve, a buffer layer, an inner sleeve and a toughness layer, the outer sleeve has a circumferential surface fixedly connected to the fireproof layer, the inner sleeve has a buffer layer fixedly connected to the inner circumferential surface of the outer sleeve, the inner sleeve has a toughness layer fixedly connected to the inner circumferential surface of the buffer layer;

[0007] The inner layer component includes an outer shielding layer, an inner sleeve, a waterproof layer, an inner shielding layer, a conductor and a grounding wire. The outer circumferential surface of the outer shielding layer is fixedly connected to the inner circumferential surface of the tough layer, the inner sleeve is fixedly connected to the inner circumferential surface of the outer shielding layer, the inner sleeve is provided with a waterproof layer inside, the waterproof layer is provided with an inner shielding layer inside, the circumferential surface of the inner shielding layer is fixedly connected to the conductor, and the circumferential surface of the outer shielding layer is fixedly connected to the grounding wire.

[0008] According to the electromagnetic interference protection communication cable, the insulation layer is made of cross-linked polyethylene, which has a series of physical and chemical properties such as good wear resistance, chemical resistance, and stress cracking resistance, and is safer and more durable. The fireproof layer is made of polycarbonate, which has a low density and is lighter in weight, which can reduce the weight of the product and can carry a larger load.

[0009] According to the electromagnetic interference protection communication cable, the cross-section of the buffer layer is a hollow hexagon, and the outer sleeve, buffer layer, inner sleeve and toughness layer are all made of polypropylene, which has excellent toughness, electrical insulation and corrosion resistance, and can better cope with external impacts and shield external electromagnetic interference.

[0010] According to the electromagnetic interference protection communication cable, the outer shielding layer is woven copper wire to improve the electromagnetic interference resistance of the line. The inner sleeve is made of modified nylon and is used to wrap the internal cable. The waterproof layer is a water-blocking paste, which can prevent water from entering the line and improve the sealing and waterproofness of the line. The inner shielding layer is woven tinned copper wire to further improve the electromagnetic interference resistance of the line. The grounding wire is a metal copper conductor.

[0011] According to the electromagnetic interference protection communication cable, the conductor is oxygen-free copper and soft copper, and the conductor and the inner shielding layer are provided in multiple numbers and are evenly distributed inside the waterproof layer.

[0012] According to the electromagnetic interference protection communication cable, the end of the grounding wire away from the outer shielding layer passes through the middle layer component and the outer layer component. Good grounding of the grounding wire can form a grounding loop outside the line, thereby better suppressing the interference of electromagnetic waves.

[0013] The beneficial effects of the utility model are as follows: by arranging an insulating layer, a fireproof layer, an outer sleeve, a buffer layer, an inner sleeve, a toughness layer, an outer shielding layer, an inner sleeve, a waterproof layer, an inner shielding layer, a conductor and a grounding wire, and utilizing a multi-layer structure, arranging an outer sleeve, a buffer layer and an inner sleeve, the ability of the cable to cope with external impacts is enhanced, and the toughness of the cable is improved. At the same time, the middle layer components, the outer shielding layer, the inner shielding layer and the grounding wire, and multiple anti-electromagnetic interference layers greatly improve the anti-electromagnetic interference capability of the cable.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of an electromagnetic interference protection communication cable of the utility model;

[0017] Figure 2 The utility model is a cross-sectional view of an electromagnetic interference protection communication cable.

[0018] Legend:

[0019] 1. Outer layer components; 2. Middle layer components; 3. Inner layer components;

[0020] 101. Insulation layer; 102. Fireproof layer;

[0021] 201, outer sleeve; 202, buffer layer; 203, inner sleeve; 204, toughness layer;

[0022] 301, outer shielding layer; 302, inner casing; 303, waterproof layer; 304, inner shielding layer; 305, conductor; 306, grounding wire. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-2 The utility model embodiment is an anti-electromagnetic interference communication cable, which includes: an outer layer component 1, a middle layer component 2 and an inner layer component 3. The outer layer component 1 includes an insulating layer 101 and a fireproof layer 102. The fireproof layer 102 is fixedly connected to the inside of the insulating layer 101. The insulating layer 101 is made of cross-linked polyethylene, and the fireproof layer 102 is made of polycarbonate. The cross-linked polyethylene has a series of physical and chemical properties such as good wear resistance, chemical resistance, and stress cracking resistance. It is safer and more durable. The polycarbonate material has a low density and is lighter in quality, which can reduce the weight of the product and can carry a larger load.

[0025] The middle layer component 2 includes an outer sleeve 201, a buffer layer 202, an inner sleeve 203 and a toughness layer 204. The circumferential surface of the outer sleeve 201 is fixedly connected to the fireproof layer 102, the buffer layer 202 is fixedly connected to the inner circumferential surface of the outer sleeve 201, the inner sleeve 203 is fixedly connected to the inner circumferential surface of the buffer layer 202, and the toughness layer 204 is fixedly connected to the inner circumferential surface of the inner sleeve 203. The cross section of the buffer layer 202 is a hollow hexagon. The outer sleeve 201, the buffer layer 202, the inner sleeve 203 and the toughness layer 204 are all made of polypropylene, which has excellent toughness, electrical insulation and corrosion resistance, and can better cope with external impact and shield external electromagnetic interference;

[0026] The inner layer component 3 includes an outer shielding layer 301, an inner sleeve 302, a waterproof layer 303, an inner shielding layer 304, a conductor 305 and a grounding wire 306. The outer circumferential surface of the outer shielding layer 301 is fixedly connected to the inner circumferential surface of the toughness layer 204, the inner sleeve 302 is fixedly connected to the inner circumferential surface of the outer shielding layer 301, the inner sleeve 302 is provided with a waterproof layer 303, the inner shielding layer 304 is provided inside the waterproof layer 303, the conductor 305 is fixedly connected to the circumferential surface of the inner shielding layer 304, the grounding wire 306 is fixedly connected to the circumferential surface of the outer shielding layer 301, the outer shielding layer 301 is woven with copper wire to improve the electromagnetic interference resistance of the line, the inner sleeve 30 2 is made of modified nylon and is used to wrap the internal cable. The waterproof layer 303 is a water-blocking paste, which can prevent water from entering the line and improve the sealing and waterproofness of the line. The inner shielding layer 304 is woven with tinned copper wire to further improve the electromagnetic anti-interference ability of the line. The grounding wire 306 is a metal copper wire, and the conductor 305 is oxygen-free copper and soft copper. There are multiple conductors 305 and inner shielding layers 304, which are evenly distributed inside the waterproof layer 303. The end of the grounding wire 306 away from the outer shielding layer 301 passes through the middle layer component 2 and the outer layer component 1. Good grounding of the grounding wire 306 can form a grounding loop on the outside of the line, thereby better suppressing the interference of electromagnetic waves.

[0027] Working principle: The insulation layer 101 is made of cross-linked polyethylene, and the fireproof layer 102 is made of polycarbonate. Cross-linked polyethylene has good physical and chemical properties such as wear resistance, chemical resistance, and stress cracking resistance, making it safer and more durable. Polycarbonate has a low density and is lighter in weight, which can reduce the weight of the product and carry a larger load. The cross-section of the buffer layer 202 is a hollow hexagon. The outer sleeve 201, the buffer layer 202, the inner sleeve 203 and the toughness layer 204 are all made of polypropylene, which has excellent toughness, electrical insulation and The anti-corrosion performance can better cope with external impact and shield external electromagnetic interference. The outer shielding layer 301 is woven with copper wire to improve the electromagnetic anti-interference ability of the line. The material of the inner sleeve 302 is modified nylon, which is used to wrap the internal cable. The waterproof layer 303 is a water-blocking paste, which can prevent water from entering the line and improve the sealing and waterproofness of the line. The inner shielding layer 304 is woven with tinned copper wire to further improve the electromagnetic anti-interference ability of the line. The grounding wire 306 is well grounded to form a grounding loop on the outside of the line, thereby better suppressing the interference of electromagnetic waves.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An electromagnetic interference protection communication cable, characterized in that: include: An outer layer component (1), a middle layer component (2) and an inner layer component (3), wherein the outer layer component (1) comprises an insulating layer (101) and a fireproof layer (102), and the fireproof layer (102) is fixedly connected to the interior of the insulating layer (101); The middle layer component (2) comprises an outer sleeve (201), a buffer layer (202), an inner sleeve (203) and a toughness layer (204); the circumferential surface of the outer sleeve (201) is fixedly connected to the fireproof layer (102); the buffer layer (202) is fixedly connected to the inner circumferential surface of the outer sleeve (201); the inner circumferential surface of the buffer layer (202) is fixedly connected to the inner sleeve (203); and the toughness layer (204) is fixedly connected to the inner circumferential surface of the inner sleeve (203); The inner layer component (3) comprises an outer shielding layer (301), an inner casing (302), a waterproof layer (303), an inner shielding layer (304), a conductor (305) and a grounding wire (306); the outer circumferential surface of the outer shielding layer (301) is fixedly connected to the inner circumferential surface of the toughness layer (204); the inner casing (302) is fixedly connected to the inner circumferential surface of the outer shielding layer (301); the inner casing (302) is provided with a waterproof layer (303); the inner shielding layer (304) is provided with an inner shielding layer (304); the circumferential surface of the inner shielding layer (304) is fixedly connected to the conductor (305); and the circumferential surface of the outer shielding layer (301) is fixedly connected to the grounding wire (306).

2. The electromagnetic interference protection communication cable according to claim 1, characterized in that: The insulating layer (101) is made of cross-linked polyethylene, and the fireproof layer (102) is made of polycarbonate.

3. The electromagnetic interference protection communication cable according to claim 1, characterized in that: The cross section of the buffer layer (202) is a hollow hexagon, and the outer sleeve (201), the buffer layer (202), the inner sleeve (203) and the toughness layer (204) are all made of polypropylene.

4. The electromagnetic interference protection communication cable according to claim 1, characterized in that: The outer shielding layer (301) is braided copper wire, the inner casing (302) is made of modified nylon, the waterproof layer (303) is a water-blocking paste, the inner shielding layer (304) is braided tinned copper wire, and the grounding wire (306) is a metal copper conductor.

5. The electromagnetic interference protection communication cable according to claim 1, characterized in that: The conductor (305) is oxygen-free copper and is soft copper. The conductor (305) and the inner shielding layer (304) are provided in plural numbers and are evenly distributed inside the waterproof layer (303).

6. The electromagnetic interference protection communication cable according to claim 1, characterized in that: One end of the grounding wire (306) away from the outer shielding layer (301) passes through the middle layer component (2) and the outer layer component (1).

Images