Double-layer foil shielding automobile cable

Abstract

The utility model discloses a double-layer foil shielding automobile cable, which comprises a tinned conductor and an insulating wire core, an isolating layer is wrapped outside the tinned conductor and the insulating wire core, the isolating layer comprises a composite film layer and a composite shielding layer, the composite film layer comprises a PVC (polyvinyl chloride) film layer and a PET (polyethylene terephthalate) film layer, and the composite shielding layer is wrapped outside the tinned conductor and the insulating wire core. The composite shielding layer comprises a PET composite belt and an aluminum foil shielding layer, the outer side of the isolation layer is wrapped with the sheath layer, and the outer sheath and the composite film layer can be integrally stripped more easily during wire cutting and head stripping after the electric wire is formed, so that the completeness of the composite shielding layer is kept, and it is guaranteed that when a customer processes the shielding wire, the shielding effect is good. The integrity of the inner layer insulation wire core is protected, and the reject ratio is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile cable production, especially relates to a double-layer foil shielding automobile cable. BACKGROUND

[0002] Automobile wire harness is the network main body of automobile circuit, and there is no automobile circuit without wire harness. Wire harness refers to the assembly of connecting circuit formed by bundling the connector (connector) and wire cable pressure jointed by copper material punching, and the outer plastic pressure insulation body or additional metal shell, etc. The current automobile cable aluminum foil shielding sheath wire generally has the problems that the aluminum foil is not easy to cut when peeling at the client end, or the internal insulating core is damaged by the blade of the wire cutting machine after cutting the aluminum foil. Therefore, the utility model provides a double-layer foil shielding automobile cable. UTILITY MODEL CONTENTS

[0003] In order to solve the above problems, the utility model provides a double-layer foil shielding automobile cable. The utility model solves the problems in the above background technology.

[0004] The double-layer foil shielding automobile cable in the utility model, including tinned conductor and insulating core, the tinned conductor and insulating core outside are wrapped with isolation layer, the isolation layer includes composite film layer and composite shielding layer, the composite film layer includes PVC film layer and PET film layer, the composite shielding layer includes PET composite tape and aluminum foil shielding layer, the aluminum foil shielding layer is wrapped outside the tinned conductor and insulating core, the PET composite tape is wrapped outside the aluminum foil shielding layer, the PET film layer is wrapped outside the PET composite tape, the PVC film layer is wrapped outside the PET composite tape, the isolation layer outside is wrapped with sheath layer.

[0005] In the above scheme, the number of insulating cores is two, and the tinned conductor is tangentially arranged, the diameter of the insulating core is 1.5mm, and the diameter of the tinned conductor is 0.93mm.

[0006] In the above scheme, the cross-sectional diameter of the sheath layer is 4mm.

[0007] In the above scheme, the thickness of the PVC film layer is 0.018mm.

[0008] In the above scheme, the thickness of the PET film layer is 0.012mm.

[0009] In the above scheme, the thickness of the PET composite tape is 0.018mm.

[0010] In the above scheme, the thickness of the aluminum foil shielding layer is 0.012mm.

[0011] The utility model discloses a double -layer foil shielding automobile cable, through setting up by the composite film layer and the composite shielding layer combination isolation layer, make in the sheath extrusion process, PVC film layer and sheath layer contact, because the sheath layer temperature can reach 190 DEG C when extruding, can melt the PVC film layer in composite film layer, make the sheath layer and composite film layer paste firm, and the PET film layer of composite film layer because with the PET composite tape of composite shielding layer contact, both relatively smooth, therefore wire forming when cutting line peeling head, can more easily remove the outer sheath and composite film layer whole, thereby preserving the integrity of composite shielding layer, guarantee customer when processing shielding wire, protect the soundness of inner layer insulated core, reduce the bad rate. BRIEF DESCRIPTION OF DRAWINGS

[0012] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0013] Fig. 1 It is the sectional view of the utility model;

[0014] Fig. 2 It is the enlarged structure schematic view of A of the utility model;

[0015] In the drawing: 1 sheath layer, 2 insulated core, 3 tinned conductor, 4 isolation layer, 41 composite film layer, 411 PVC film layer, 412 PET film layer, 42 composite shielding layer, 421 PET composite tape, 422 aluminum foil shielding layer. DETAILED DESCRIPTION

[0016] The specific implementation of the utility model will be further described below in combination with the drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0017] As Figs. 1-2As shown, the utility model relates to a double-layer foil shielding automobile cable, including tinned conductor 3 and insulating core 2, the number of insulating core 2 is two, and tinned conductor 3 is tangent arrangement in triangle type, the diameter of insulating core 2 is 1.5mm, the diameter of tinned conductor 3 is 0.93mm. Tinned conductor 3 and insulating core 2 outside are wrapped with isolation layer 4, and isolation layer 4 is used for isolating insulating core 2, the isolation layer 4 includes composite film layer 41 and composite shielding layer 42, the composite film layer 41 includes PVC film layer 411 and PET film layer 412, the thickness of PVC film layer 411 is 0.018mm. The thickness of PET film layer 412 is 0.012mm, and PET film layer 412 is high temperature resistant and smooth, since the sheath layer 1 temperature is as high as about 200 DEG C, can easily melt PVC film layer 411 and PET film layer 412 and adhere together and form a whole structure, the composite shielding layer 42 includes PET composite tape 421 and aluminium foil shielding layer 422, the aluminium foil shielding layer 422 is wrapped in tinned conductor 3 and insulating core 2 outside, the PET composite tape 421 is wrapped in aluminium foil shielding layer 422 outside, the thickness of PET composite tape 421 is 0.018mm. The thickness of aluminium foil shielding layer 422 is 0.012mm, and PET film layer 412 and composite shielding layer 42 are contacted through two layers of PET layer, because PET material is high temperature resistant, is not easy to melt and is very smooth, so can relatively easily produce relative sliding, therefore, when cutting wire and stripping head after wire forming, can more easily remove sheath layer 1 and composite film layer 41 as a whole, thereby preserving the integrity of composite shielding layer 42, the PET film layer 412 is wrapped in PET composite tape 421 outside, the PVC film layer 411 is wrapped in PET composite tape 421 outside, the isolation layer 4 outside is wrapped with sheath layer 1, the cross section diameter of sheath layer 1 is 4mm, in the wire extrusion process, PET film layer 412 and PET composite tape 421 all will not melt, after wire forming, two layers of PET film relatively slide more easily, therefore, after cutting wire, cutting knife can guarantee that composite film layer 41 is peeled off and composite shielding layer 42 is preserved, thereby prevent the condition that cutting wire damages inner layer insulating core 2.

[0018] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should include in the protection scope of the utility model.

Claims

1. A double-layer foil-shielded automotive cable, comprising a tin-plated conductor (3) and an insulated core (2), characterized in that: The tin-plated conductor (3) and the insulated core (2) are wrapped with an isolation layer (4). The isolation layer (4) includes a composite film layer (41) and a composite shielding layer (42). The composite film layer (41) includes a PVC film layer (411) and a PET film layer (412). The composite shielding layer (42) includes a PET composite tape (421) and an aluminum foil shielding layer (422). The aluminum foil shielding layer (422) is wrapped around the outside of the tin-plated conductor (3) and the insulated core (2). The PET composite tape (421) is wrapped around the outside of the aluminum foil shielding layer (422). The PET film layer (412) is wrapped around the outside of the PET composite tape (421). The PVC film layer (411) is wrapped around the outside of the PET composite tape (421). The isolation layer (4) is wrapped with a sheath layer (1).

2. The double-layer foil shielded automotive cable according to claim 1, characterized in that, The number of insulated wire cores (2) is two, which are arranged in a triangular tangential manner with the tin-plated conductor (3). The diameter of the insulated wire cores (2) is 1.5 mm, and the diameter of the tin-plated conductor (3) is 0.93 mm.

3. The double-layer foil shielded automotive cable according to claim 1, characterized in that, The cross-sectional diameter of the sheath layer (1) is 4 mm.

4. The double-layer foil shielded automotive cable according to claim 1, characterized in that, The thickness of the PVC film layer (411) is 0.018 mm.

5. A double-layer foil-shielded automotive cable according to claim 1, characterized in that, The thickness of the PET film layer (412) is 0.012 mm.

6. The double-layer foil shielded automotive cable according to claim 1, characterized in that, The thickness of the PET composite tape (421) is 0.018 mm.

7. A double-layer foil shielded automotive cable according to claim 1, characterized in that, The thickness of the aluminum foil shielding layer (422) is 0.012 mm.

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