Shielding sheath wire for automobile

Abstract

The utility model provides a shielding sheath wire for an automobile. The shielding sheath wire comprises three wire cores, a sheath layer and a metal powder layer, the three wire cores comprise two insulated conductors and a grounding wire which are arranged in a twisting manner; the sheath layer wraps the outer surface of the wire core; and the metal powder layer is filled between the wire cores and the sheath layer. The utility model provides the automobile shielding sheath wire which is simple in structure, not easy to deform and fold and strong in shielding performance, and the anti-interference capability and the wire roundness are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a shielded sheath wire for automobiles. Background Technique

[0002] At present, China's economy continues to grow rapidly. With the continuous expansion of the scales of China's power industry, data communication industry, urban rail transit industry, automobile industry, shipbuilding and other industries, the demand for wires and cables will also increase rapidly.

[0003] Such as Figure 1 As shown in the structure of the existing shielded wire for automobiles, a shield layer 2' is wrapped outside the wire core 1', and a sheath layer 3' is wrapped outside the shield layer 2'. At present, the shield layer 2' uses aluminum foil or copper foil. The aluminum foil or copper foil needs to be processed into a ribbon shape in advance. After the aluminum foil is wrapped, there are problems such as uneven aluminum foil thickness, low wrapping degree, and during the processing, the aluminum foil is easy to fold and deform, and is easy to break, resulting in poor shielding performance, making the finished wire vulnerable to external signal interference; the aluminum foil or copper foil is inside the sheath layer 3', and it is impossible to monitor in real time whether its wrapping state is normal, and batch quality problems are likely to occur. The structures of most wire cores 1' are not very symmetrical, and the roundness inside the wire core 1' is not high, resulting in heavy surface wire flowers after extrusion, and poor roundness of the wire after sheathing. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a shielded sheath wire for automobiles with a simple structure, not easy to deform and fold, and strong shielding performance, which improves the anti-interference ability and the roundness of the wire.

[0005] The utility model is realized as follows: A shielded sheath wire for automobiles, comprising:

[0006] Three wire cores, including two insulated conductors and one grounding wire stranded together;

[0007] A sheath layer, wrapped on the outer surface of the wire core;

[0008] A metal powder layer, filled between the wire core and the sheath layer.

[0009] Further, the metal powder layer is made of aluminum powder, and the aluminum powder is a 20um-class powder.

[0010] Further, the insulated conductor includes a metal conductor and an insulating layer sleeved on the outer surface of the metal conductor.

[0011] Further, the metal conductor is a bare copper conductor or an alloy conductor.

[0012] Further, the cross-sectional area of the metal conductor is 0.3mm2 - 1.0mm2.

[0013] Further, the sheath layer is made of PVC or XLPE material, and the thickness is 0.5 mm - 2.0 mm.

[0014] Further, the insulation layer is made of PVC or XLPE material, and the thickness is 0.20 mm - 0.80 mm.

[0015] The advantages of the present utility model are as follows: by filling aluminum powder between the sheath layer and the wire core, the aluminum powder is used instead of aluminum foil as the shielding layer, reducing the problems of easy breakage, easy folding and incomplete wrapping degree of the aluminum foil during aluminum foil shielding, improving the shielding interference performance of the product; improving the roundness of the wire structure, making the wire surface smooth and round, and the wire is less likely to be damaged; and only by detecting the outer diameter of the finished wire, the wrapping state of the aluminum powder can be monitored. Description of the Drawings

[0016] The following further describes the present utility model with reference to the drawings in conjunction with embodiments.

[0017] Figure 1 It is a schematic structural diagram of a shielded wire for automobiles in the prior art.

[0018] Figure 2 It is a schematic structural diagram of a shielded sheath wire for automobiles of the present utility model.

[0019] Explanation of the reference numerals in the drawings: wire core 1', shielding layer 2', sheath layer 3', sheath wire 100, wire core 1, insulated conductor 11, metal conductor 111, insulation layer 112, grounding wire 12, sheath layer 2, metal powder layer 3. Detailed Embodiment

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figure 2 shown, a shielded sheath wire 100 for automobiles includes: three wire cores 1, one sheath layer 2 and one metal powder layer 3; the three wire cores 1 include two insulated conductors 11 and one grounding wire 12 twisted together; the sheath layer 2 is wrapped on the outer surface of the wire core 1; the metal powder layer 3 is filled between the wire core 1 and the sheath layer 2.

[0022] In specific implementation, preferably, the metal powder layer 3 is made of aluminum powder, and the aluminum powder is 20um grade powder.

[0023] In a specific implementation, preferably, the insulated conductor 11 includes a metal conductor 111 and an insulating layer 112 sleeved on the outer surface of the metal conductor 111.

[0024] In a specific implementation, preferably, the metal conductor 111 is a bare copper conductor or an alloy conductor.

[0025] In a specific implementation, preferably, the cross-sectional area of the metal conductor 111 is 0.3 mm² - 1.0 mm².

[0026] In a specific implementation, preferably, the sheath layer 2 is made of PVC or XLPE material, and the thickness is 0.5 mm - 2.0 mm.

[0027] In a specific implementation, preferably, the insulating layer 112 is made of PVC or XLPE material, and the thickness is 0.20 mm - 0.80 mm.

[0028] In the present utility model, a metal powder layer 3 is filled between the sheath layer 2 and the wire core 1. Preferably, the metal powder layer 3 is aluminum powder. Using aluminum powder instead of aluminum foil as a shielding layer reduces the problems that the aluminum foil is easily damaged, folded, and the wrapping is incomplete during aluminum foil shielding, and improves the shielding interference performance of the product; the filling of aluminum powder can increase the saturation between the sheath layer and the wire core, improve the roundness of the wire structure, make the wire surface smooth and round, and the wire is less likely to be damaged; and only by detecting the outer diameter of the finished wire, the wrapping state of the aluminum powder can be monitored.

[0029] Although the specific implementation manners of the present utility model have been described above, those skilled in the art should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present utility model. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present utility model should be covered by the scope protected by the claims of the present utility model.

Claims

1. A shielded sheathed wire for automobiles, characterized in that, Including: A three-core wire, including two insulated conductors and a ground wire stranded together; A sheath layer, wrapped around the outer surface of the wire core; A metal powder layer, filled between the wire core and the sheath layer.

2. The shielded sheathed wire for an automobile according to claim 1, wherein: The metal powder layer is made of aluminum powder, and the aluminum powder is a 20um grade powder.

3. The shielded sheathed wire for an automobile according to claim 1, characterized in that: The insulated conductor includes a metal conductor and an insulating layer sleeved on the outer surface of the metal conductor.

4. The shielded sheathed wire for automobile according to claim 3, wherein: The metal conductor is a bare copper conductor or an alloy conductor.

5. The shielded sheathed wire for automobiles according to claim 3, characterized in that: The cross-sectional area of the metal conductor is 0.3 mm 2 - 1.0 mm 2 .

6. The shielded sheathed wire for automobiles according to claim 5, characterized in that: The sheath layer is made of PVC or XLPE material, with a thickness of 0.5mm - 2.0mm.

7. The shielded sheathed wire for automobile according to claim 5, characterized in that: The insulating layer is made of PVC or XLPE material, with a thickness of 0.20mm - 0.80mm.

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