Low-voltage multi-core aluminum foil shielding wire for automobile

Abstract

The utility model discloses a low-voltage multi-core aluminum foil shielding wire for an automobile, which comprises a ground wire core and an insulating wire core, the ground wire core and the insulating wire core are twisted to form a twisted wire core, an aluminum foil shielding layer is wrapped outside the twisted wire core, and a plastic sheath layer is sleeved outside the aluminum foil shielding layer; wherein the ground wire core comprises an aluminum conductor and a first conductive plastic layer, and the first conductive plastic layer wraps the outer layer of the aluminum conductor and is placed in the center of the stranded wire core; and each insulating wire core comprises a conductor, and an insulating plastic layer and a second conductive plastic layer which sequentially coat the outer layer of the conductor. According to the utility model, a novel wire structure is provided, the material cost is saved, the weight of the wire is reduced, and the light weight of an automobile is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric wire manufacturing, specifically relates to a low voltage multi -core aluminum foil shielded electric wire for automobile. BACKGROUND

[0002] The current 7-core low voltage aluminum foil shielded automobile electric wire is mainly composed of a conductor, an insulation layer, an aluminum foil shielding layer, a tinned ground wire and a sheath layer, such as the "bare copper aluminum PET wrap plus ground wire structure thin wall 100 DEG C insulation low voltage cable" in the Ford Company Engineering Specification ES 6G9T-14401-AA, the conductor is a copper conductor, and the ground wire is a tinned copper stranded wire. Since the prices of copper and tin are high and the densities are large, the material cost of the product is high, and the product is heavy, which is also not conducive to the light weight of the automobile. At the same time, the tinned ground wire can only be on the outer layer of the 7-stranded wire cores, so that the tinned conductor and the aluminum foil are in contact, thereby causing the leakage of induced current. In addition, the outer diameter of the ground wire and the outer diameter of the insulated wire core are not the same, and the ground wire is placed in the outer layer, which leads to poor stranding. SUMMARY

[0003] The utility model wants to solve the technical problem in at reducing the weight of the electric wire, and the cost of the low voltage multi -core aluminum foil shielded electric wire for automobile is reduced.

[0004] The utility model is realized thus:

[0005] A low voltage multi -core aluminum foil shielded electric wire for automobile, including ground wire core and insulated wire core, the ground wire core and the insulated wire core are twisted to form stranded wire core, the stranded wire core is wrapped with aluminum foil shielding layer, and the aluminum foil shielding layer is sleeved with plastic sheath layer, wherein the ground wire core includes aluminum conductor and first conductive plastic layer, the first conductive plastic layer is covered on the outer layer of the aluminum conductor, and is placed in the center position of the stranded wire core, the insulated wire core includes conductor and insulating plastic layer and second conductive plastic layer which are covered on the outer layer of the conductor in sequence.

[0006] Further, the stranded wire core is composed of 1 ground wire core and 6 peripheral insulated wire cores.

[0007] Further, the cross-sectional area of the ground wire core is 0.3-0.75mm 2 , and the cross-sectional area of the insulated wire core is 0.35-1.0mm 2 .

[0008] Further, the conductor of the insulated wire core is copper, aluminum or copper-clad aluminum.

[0009] The utility model discloses a ground wire of low voltage multi -core aluminium foil shielded electric wire, which is characterized by the following technical scheme. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model will be further described in connection with the embodiments and with reference to the drawings.

[0011] Figure 1 It is the cross section structure schematic diagram of the utility model.

[0012] In the figure: 100, electric wire;1, plastic sheath layer;2, aluminium foil shielding layer;3, first conductive plastic layer;4, aluminium conductor;5, plastic insulation layer;6, ground wire core;7, insulated wire core;8, conductor;9, second conductive plastic layer. DETAILED DESCRIPTION

[0013] The technical scheme of the utility model will be described clearly and completely in connection with the drawings and specific embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0014] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it can not be understood as the limitation of the utility model.

[0015] In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can be detachable connection, or integrally connected;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through the intermediate medium, can be the intercommunication of two elements. For the person skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0016] Please refer to Figure 1 As shown in the figure, the embodiment provides a kind of low voltage multi-core aluminium foil shielded electric wire 100 for automobile, including a ground wire core 6 and six insulated wire cores 7, the cross-sectional area of ground wire core 6 is 0.3-0.75mm 2 , the cross-sectional area of insulated wire core 7 is 0.35-1.0mm2 The ground wire core 6 and the insulated wire core 7 are twisted to form a twisted wire core, the twisted wire core is wrapped with the aluminum foil shielding layer 2, and the aluminum foil shielding layer 2 is sleeved with the plastic sheath layer 1; wherein the ground wire core 6 comprises an aluminum conductor 4 and a first conductive plastic layer 3, the first conductive plastic layer 3 is wrapped outside the aluminum conductor 4, and the insulated wire core 7 comprises a conductor 8 and a plastic insulation layer 5 and a second conductive plastic layer 9 wrapped outside the conductor 8 in sequence. After the first conductive plastic layer 3 and the second conductive plastic layer 9 on the surface of the insulated wire core 7 are in contact with each other in the twisted wire core, the induced current of the aluminum foil shielding layer 2 is transmitted to the aluminum conductor 4 through the conductive plastic, at this time, the aluminum conductor 4 is grounded, and the leakage current is also grounded. In short, the first conductive plastic layer 3 serves as a leakage channel for the induced current, and in addition, the plastic material is used, so that the cost and weight are lower than those of the tin-plated conductor used as the grounding material. Meanwhile, the ground wire core 6 is placed at the center position of the twisted wire core, and the second conductive plastic layer 9 is ingeniously wrapped outside the insulated wire core 7, so that the ground wire core 6 is connected with the aluminum foil shielding layer 2 through the conductive plastic. Moreover, the ground wire core 6 is placed at the center position of the twisted wire core, so that the twisting is better.

[0017] It should be noted that the conductor 8 of the insulated wire core 7 in the embodiment can be made of copper, aluminum or copper-clad aluminum.

[0018] The low-voltage multi-core aluminum foil shielding electric wire for automobiles has the advantages that the ground wire core is made of aluminum material and conductive plastic, so that the cost is reduced by about 5% and the weight is reduced by about 10% compared with the original copper material and tin material, and the economic benefit is remarkable; and the ground wire core is placed in the middle of the twisted wire core, so that better twisting effect can be achieved compared with the prior art in which the ground wire core is placed on the outer layer.

[0019] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that the specific embodiments described by us are only illustrative, and are not used to limit the scope of the utility model, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the utility model should be covered in the scope of protection of the claims of the utility model.

Claims

1. A low-voltage multi-core aluminum foil shielded wire for automobiles, characterized in that: The wire includes a ground wire core and an insulated wire core, which are twisted together to form a stranded wire core. The stranded wire core is covered with an aluminum foil shielding layer, and the aluminum foil shielding layer is further covered with a plastic sheath layer. The ground wire core includes an aluminum conductor and a first conductive plastic layer, the first conductive plastic layer covering the outer layer of the aluminum conductor and placed at the center of the stranded wire core; The insulated core includes a conductor and an insulating plastic layer and a second conductive plastic layer that are sequentially wrapped around the conductor.

2. The low-voltage multi-core aluminum foil shielded wire for automobiles as described in claim 1, characterized in that: The stranded core consists of one ground core and six outer insulated cores.

3. A low-voltage multi-core aluminum foil shielded wire for automobiles as described in claim 1 or 2, characterized in that: The cross-sectional area of ​​the ground wire core is 0.3-0.75 mm². 2 The cross-sectional area of ​​the insulated wire core is 0.35-1.0 mm². 2 .

4. The low-voltage multi-core aluminum foil shielded wire for automobiles as described in claim 1, characterized in that: The conductor of the insulated wire core is copper, aluminum, or copper-clad aluminum.

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