Shielding power supply cable for interference radar

Abstract

The utility model discloses a shielding power supply cable for an interference radar, which comprises a plurality of tightly arranged copper alloy conductors, and is characterized in that gaps among the plurality of copper alloy conductors are filled with insulating layers, and a belting layer, a shielding layer and a sheath layer are sequentially arranged outside the insulating layers; according to the utility model, the TPV elastomer, namely the thermoplastic elastomer, is adopted as the sheath layer, so that the cable has the advantages of excellent tensile strength, excellent tear resistance and excellent wear resistance, and effectively resists the damage to the cable core wire caused by an external complex environment, and meanwhile, the TPV elastomer and the ETFE are respectively adopted by the sheath and the insulating layer of the cable, so that the cable is more environment-friendly, and the service life of the cable is prolonged. The heat resistance is enhanced; the shielding layer braided by copper wires prevents external equipment from generating electronic interference on the cable. The copper alloy conductors of the cable are made of aluminum alloy materials, on the premise that the requirement of direct current resistance is met, light weight is achieved, the laying pressure of workers is relieved, and meanwhile the sheath layer is soft in texture and adapts to the laying requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a shielded power cable for jamming radar. Background Art

[0002] Cables are mainly used for multiple functions such as control installation, connecting equipment, and transmitting electricity. They are common and indispensable in daily life. With the development of science and technology and the improvement of people's daily living standards, the requirements for wires and cables in special occasions are getting higher and higher, such as power cables used in interference radars;

[0003] Radar jamming can be divided into suppressive jamming and deceptive jamming. The former mainly forms a strong clutter background or a large number of false target echoes on the radar display to reduce the radar's detection capability; the latter mainly includes angle, distance, speed and false target deception, etc., to disrupt the radar operator or the radar automatic tracking system's recognition and tracking of the target;

[0004] Since the power cable used by the jamming radar needs to be laid in an outdoor environment, the power cable is required to have excellent environmental adaptability and anti-interference ability. At the same time, in order to facilitate the laying of construction personnel, the cable is required to have the advantage of being lightweight. Therefore, the utility model proposes a shielded power cable for jamming radar to solve the problems existing in the prior art. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to propose a shielded power cable for jamming radar, which solves the problem that the power cable used for jamming radar needs to be laid in an outdoor environment, and therefore the power cable needs to have excellent environmental adaptability and anti-interference ability.

[0006] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a shielded power cable for interference radar, comprising a plurality of closely arranged copper alloy conductors, the gaps between the plurality of copper alloy conductors are filled with an insulating layer, and a tape layer, a shielding layer and a sheath layer are sequentially arranged outside the insulating layer.

[0007] A further improvement is that the plurality of copper alloy conductors are each formed by twisting a plurality of aluminum alloy wires, and the diameter of a single aluminum alloy wire is 0.3 mm.

[0008] A further improvement is that the insulating layer itself is made of ETFE and has a thickness of 0.3 mm.

[0009] A further improvement is that the material of the wrapping layer itself is polyester.

[0010] A further improvement is that the shielding layer is woven by a plurality of copper wires, and the density of the shielding layer is ≥80%.

[0011] A further improvement is that the sheath layer itself is made of TPV elastomer and has a thickness of 1.0 mm.

[0012] A further improvement is that the plurality of aluminum alloy wires are twisted in a regular manner, and the core arrangement of the copper alloy conductor increases by 6 from the inside to the outside.

[0013] The beneficial effects of the utility model are:

[0014] 1. Considering the need for anti-interference capability, this cable uses a copper wire braided shielding layer to prevent external devices from generating electronic interference to the cable;

[0015] 2. Considering that the power cable needs to have excellent environmental adaptability, this cable uses TPV elastomer, i.e. thermoplastic elastomer, as the sheath layer, which has the advantages of tensile strength, excellent tear resistance and good wear resistance, and can effectively resist damage to the cable core wire caused by the complex external environment. At the same time, since the sheath and insulation layer of this cable are made of TPV elastomer and ETFE respectively, the cable is endowed with heat-resistant characteristics;

[0016] 3. Finally, considering that the cable needs to be laid and used, in order to facilitate laying, the copper alloy conductor of this cable is made of aluminum alloy. On the premise of meeting the requirements of DC resistance, it achieves lightweight and reduces the laying pressure of the staff. At the same time, the sheath layer is soft in texture, which facilitates the laying construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the twisted structure of aluminum alloy wires inside the copper alloy conductor in the utility model.

[0019] Among them: 1. Copper alloy conductor; 2. Insulation layer; 3. Tape layer; 4. Shielding layer; 5. Sheath layer. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0021] according to Figure 1 - Figure 2As shown, the present embodiment provides a shielded power cable for jamming radar, comprising a plurality of closely arranged copper alloy conductors 1, the gaps between the plurality of copper alloy conductors 1 are filled with an insulating layer 2, a tape layer 3, a shielding layer 4 and a sheath layer 5 are sequentially arranged outside the insulating layer 2, considering that the power cable used for jamming radar needs to be laid in an outdoor environment, the power cable is required to have excellent environmental adaptability and anti-interference capabilities, and at the same time, in order to facilitate the laying of construction personnel, the cable is required to have the advantage of being lightweight, and in consideration of the need for its anti-interference capability, the present cable utilizes a copper wire braided shielding layer 4 to prevent external equipment from generating electronic interference to the cable; in consideration of the need for the power cable to have When the cable has excellent environmental adaptability, TPV elastomer, i.e. thermoplastic elastomer, is used as the sheath layer 5, which has the advantages of tensile strength, excellent tear resistance and good wear resistance, and can effectively resist the damage of the cable core wire caused by the complex external environment. At the same time, since the cable adopts TPV elastomer and ETFE as the sheath and insulation layer 2 respectively, the cable is endowed with heat-resistant characteristics; finally, considering that the cable needs to be laid and used, in order to facilitate laying, the copper alloy conductor 1 of the cable is made of aluminum alloy. On the premise of meeting the requirements of DC resistance, it achieves lightweight and reduces the laying pressure of the staff. At the same time, the sheath layer 5 is soft in texture, which facilitates the laying construction.

[0022] Several copper alloy conductors 1 are formed by twisting multiple aluminum alloy wires, and the diameter of a single aluminum alloy wire is 0.3 mm, but is not limited to 0.3 mm, and can also be other sizes. The specific size depends on the manufacturer. By setting the aluminum alloy material as the conductor material, the weight of the cable is reduced while meeting the needs of the retention resistance, achieving lightweight, which is conducive to subsequent laying.

[0023] The insulating layer 2 itself is made of ETFE, and the thickness of the insulating layer 2 is 0.3mm, but not limited to 0.3mm, and can also be other sizes. By setting the material of the insulating layer 2 to ETFE, electrical insulation performance is provided for the cable. At the same time, it has excellent heat resistance and can be used normally at -55℃~+150℃.

[0024] The tape layer 3 is made of polyester. The tape layer 3 is provided to tighten the copper alloy conductor 1 and the insulating layer 2 of the cable, and also to provide a transition between the insulating layer 2 and the shielding layer 4.

[0025] The shielding layer 4 is woven by a number of copper wires, and the density of the shielding layer 4 is ≥80%, but the density is not limited to ≥80%, and can also be other sizes. The shielding layer 4 is provided to effectively prevent electronic interference.

[0026] The material of the sheath layer 5 itself is TPV elastomer, and the thickness of the sheath layer 5 is 1.0 mm, but the thickness is not limited to 1.0 mm. By setting the sheath layer 5 to be TPV elastomer, the cable is endowed with excellent physical and mechanical properties, tensile strength, very good tear resistance, and good wear resistance. At the same time, it also has excellent heat resistance and can work normally in an environment with an ambient temperature of -55°C to 125°C.

[0027] The twisting method of the multiple aluminum alloy wires is regular twisting, and the core arrangement of the copper alloy conductor 1 increases by 6 from the inside to the outside. By setting the twisting method to regular twisting, the roundness of the cable conductor is improved.

[0028] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A shielded power cable for jamming radar, comprising a plurality of closely arranged copper alloy conductors (1), characterized in that: The gaps between the copper alloy conductors (1) are filled with an insulating layer (2), and a tape layer (3), a shielding layer (4) and a sheath layer (5) are sequentially arranged outside the insulating layer (2).

2. The shielded power cable for jamming radar according to claim 1, characterized in that: The copper alloy conductors (1) are each formed by twisting a plurality of aluminum alloy wires, and the diameter of a single aluminum alloy wire is 0.3 mm.

3. The shielded power cable for jamming radar according to claim 1, characterized in that: The insulating layer (2) itself is made of ETFE, and the thickness of the insulating layer (2) is 0.3 mm.

4. The shielded power cable for jamming radar according to claim 1, characterized in that: The material of the wrapping layer (3) is polyester.

5. The shielded power cable for jamming radar according to claim 1, characterized in that: The shielding layer (4) is woven from a plurality of copper wires, and the density of the shielding layer (4) is ≥80%.

6. The shielded power cable for jamming radar according to claim 1, characterized in that: The material of the sheath layer (5) itself is TPV elastomer, and the thickness of the sheath layer (5) is 1.0 mm.

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