Low resistance wire and cable

Abstract

The present invention relates to a low-resistance wire and cable; the low-resistance wire and cable comprises a conducting material, a magnetic material layer, and an insulating layer; the magnetic material layer is wrapped around the conducting material; the insulating layer is sleeved outside the magnetic material layer; and the magnetic material layer is axially magnetized in the same direction. The low-resistance wire and cable of the present invention is provided with a magnetic material layer that has been axially magnetized in the same direction, close to the conducting material; the magnetic material layer can generate a directional magnetic field and reduce the resistance of the directional current.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission, and in particular to a low-resistance electric wire and cable. Background Art

[0002] Cables are the most common electrical equipment on the market. Conventional cables include a conductor at the core, an insulating layer wrapped around the conductor, a shielding layer outside the insulating layer, and an outermost sheath. Cable resistance refers to the impedance of the conductor per unit length. It is an important parameter of the cable and also the resistance to the flow of current per unit length of the cable. Low-resistance wires and cables mean a significant reduction in the resistance of wires and cables. Currently, everyone believes that the factors that affect the resistance of wires and cables include factors such as wire length, wire thickness, wire material, and the ambient temperature of the wire, ignoring the giant magnetoresistance effect. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problem and provide a low-resistance electric wire and cable.

[0004] The technical solution of the present invention is: a low-resistance wire and cable includes a current-carrying material, a magnetic material layer, and an insulating layer; the magnetic material layer is wrapped around the current-carrying material; the insulating layer is sleeved outside the magnetic material layer; the magnetic material layer is axially magnetized in the same direction; the magnetic material layer can generate a directional magnetic field and reduce the resistance of the directional current; the insulating layer protects the current-carrying material to avoid leakage accidents.

[0005] Preferably, the low-resistance wire and cable also includes a shielding layer; the shielding layer is wrapped around the magnetic material layer; the insulating layer is wrapped around the shielding layer; the shielding layer shields the electromagnetic field, so that the axial magnetic field carried by the magnetic material layer does not leak out, and external interference is avoided.

[0006] The beneficial effects of the present invention are as follows: the low-resistance wire and cable of the present invention has the following advantages:

[0007] (1) The low-resistance wire and cable of the present invention is provided with a magnetic material layer which is axially magnetized in the same direction, in close contact with the current-carrying material; according to the principle of giant magnetoresistance effect, the magnetic material layer can generate a directional magnetic field and reduce the resistance of the directional current;

[0008] (2) The shielding layer of the present invention shields the electromagnetic field, so that the axial magnetic field carried by the magnetic material layer does not leak out and external interference is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic structural diagram of the low-resistance electric wire and cable of the present invention;

[0010] Figure 2 It is a schematic diagram of the working principle of the present invention;

[0011] In the figure: 1. Current-carrying material, 2. Magnetic material layer, 3. Shielding layer, 4. Insulation layer. DETAILED DESCRIPTION

[0012] Example 1: See Figure 1-2 A low-resistance wire and cable includes a current-carrying material 1, a magnetic material layer 2, and an insulating layer 4; the magnetic material layer 2 is wrapped around the current-carrying material 1; the insulating layer 4 is sleeved on the magnetic material layer 2; the magnetic material layer 2 is axially magnetized in the same direction; the magnetic material layer 2 can generate a directional magnetic field and reduce the resistance of the directional current; the insulating layer 4 protects the current-carrying material 1 to avoid leakage accidents.

[0013] Compared with the prior art, the low-resistance wire and cable of the present invention has a magnetic material layer 2 that is axially magnetized in the same direction arranged close to the current-carrying material 1; according to the principle of giant magnetoresistance effect, the magnetic material layer 2 can generate a directional magnetic field and reduce the resistance of the directional current.

[0014] The low-resistance wire and cable also includes a shielding layer 3; the shielding layer 3 is wrapped around the outside of the magnetic material layer 2; the insulating layer 4 is wrapped around the outside of the shielding layer 3; the shielding layer 3 shields the electromagnetic field, so that the axial magnetic field carried by the magnetic material layer 2 does not leak out, and external interference is avoided.

[0015] The working principle of this embodiment is as follows: the magnetic material layer 2 is magnetized in the same axial direction, and the magnetic material layer 2 can generate a directional magnetic field and reduce the resistance of the directional current; the insulating layer 4 protects the energized material 1 to avoid leakage accidents.

[0016] See also Figure 2 , the magnetic material layer 2 is magnetized in the same axial direction, so that magnetic poles are generated at the left and right ends of the magnetic material layer 2; the current-carrying material 1 is located at the center of the cable; the magnetic material layer 2, the insulating layer 4, and the shielding layer 3 are arranged in sequence from the current-carrying material 1 to the outside; the resistance of the ordinary current-carrying material 1 mainly comes from the scattering of electrons by atoms inside the material, which causes the electrons to be blocked during the conduction process, thereby generating resistance; the directional magnetic field generated by the magnetic material layer 2 acts on the carriers, exerting a magnetic field on the carriers along Figure 2 The force is in the direction of the dashed arrow; Figure 2 The solid arrow in the middle indicates the direction of the current; when the current direction is consistent with the direction in which the carriers are acted upon by the oriented magnetic field, the current is accelerated; the resistance of the energized material 1 is greatly reduced, thereby reducing the current resistance; when the current direction is inconsistent with the direction in which the carriers are acted upon by the oriented magnetic field, the current is decelerated; the resistance of the energized material 1 is increased, thereby increasing the current resistance.

[0017] Two parallel low-resistance wires and cables are connected at both ends. Their directional magnetic fields are in opposite directions and can be used for AC power transmission.

[0018] If two low-group wires and cables of the present invention are connected in parallel, and the magnetic force directions of the magnetic material layers 2 in the two low-group wires and cables are opposite, they can be used to transmit alternating current. The working principle is as follows: the resistance of the two low-group wires and cables connected in parallel is set to R;

[0019] When the forward current flows through the low-group wire and cable A, it shows low impedance, and the resistance is R1. When the reverse current flows through it, it shows high impedance, and the resistance is R2; R1<R2;

[0020] When the forward current flows into the low-group wire and cable B, it shows high impedance, and the resistance is R3. When the reverse current flows into the low-group wire and cable B, it shows low impedance, and the resistance is R4. R3>R4;

[0021] When the forward current is about to enter the low-group wire and cable A and the low-group wire and cable B connected in parallel, R1<R3, and the forward current mainly passes through the low-group wire and cable A;

[0022]

[0023] When the reverse current is about to enter the parallel low-group wire and cable A and low-group wire and cable B, R4<R2, and the reverse current mainly passes through the low-group wire and cable B;

[0024]

[0025] From the above, it can be seen that when low-group wires and cables are arranged in parallel and the magnetic force directions of the magnetic material layers 2 in the low-group wires and cables are opposite, the parallel low-group wires and cables can transmit alternating current; and, exhibit lower impedance.

Claims

1. A low-resistance wire and cable, characterized in that: It includes an electrified material, a magnetic material layer and an insulating layer; the magnetic material layer is wrapped around the electrified material; the insulating layer is sheathed around the magnetic material layer; and the magnetic material layer is magnetized in the same axial direction.

2. The low-resistance wire and cable according to claim 1, characterized in that: It also includes a shielding layer; the shielding layer is wrapped outside the magnetic material layer; and the insulating layer is wrapped outside the shielding layer.

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