Novel automobile low-voltage thin-wall shielding multi-core cable

Abstract

A novel automobile low-voltage thin-wall shielding multi-core cable provided by the present application comprises a wire core, an insulating layer wrapping the periphery of the wire core, a reinforcing layer group wrapping the periphery of the insulating layer, and a sheath layer wrapping the periphery of the reinforcing layer group, the wire core comprises N strands of conductors, the insulating layer wraps the periphery of each strand of conductor, and the sheath layer wraps the periphery of each strand of conductor. The conductor is made of tin-plated copper-clad aluminum, and the material of the conductor is replaced by tin-plated copper-clad aluminum from a fifth-class pure copper conductor, so that the density of the conductor is remarkably reduced, the material cost of the cable is remarkably reduced, the purchase cost of an automobile enterprise can be reduced in practical application, the overall manufacturing cost of an automobile is reduced, and finally the consumption experience of consumers is improved. The utility model provides a cheap and fine product for consumers, and has the advantages of simple structure, low implementation cost, stable structure and convenience in popularization and implementation.

Description

Technical Field

[0001] This application belongs to the field of cable manufacturing technology, specifically relating to a novel low-voltage thin-walled shielded multi-core cable for automobiles. Background Technology

[0002] In existing technologies, the design and manufacturing processes of new energy vehicles have specific requirements for the cables used to meet the high standards of vehicle performance, safety, and energy efficiency. Low-voltage thin-walled cables, due to their lightweight, flexibility, and good electrical properties, are widely used in new energy vehicles for communication with power sources and other electronic control units.

[0003] In existing technologies, low-voltage thin-walled cables are widely used in automobile manufacturing and other electrical fields. Their structure includes a conductor layer, an insulation layer, a shielding layer, and a sheath layer. However, current low-voltage thin-walled cables have some shortcomings in design and material selection, specifically in the following aspects: The conductor material and processing costs are relatively high. Currently, most conductors use Category 5 copper conductors stranded together, which have a high density, increasing the conductor's volume and weight, thus increasing material costs. Furthermore, the insulation material is mostly 105 thermoplastic polyvinyl chloride, which also has a high density, further increasing the cable's volume and weight and pushing up production costs. In practical applications, this leads to increased procurement costs for automakers, thereby increasing the overall manufacturing cost of automobiles and ultimately reducing the consumer experience. Therefore, improvements are urgently needed. Utility Model Content

[0004] This application addresses the technical problem that in existing low-voltage thin-walled cables, the conductor material is typically Category 5 pure copper conductor, which has a high density. In actual use, this significantly increases the volume and weight, raising material costs. The insulation material is typically 105 thermoplastic polyvinyl chloride, which also has a high density, further increasing the cable's volume and weight and pushing up production costs. This hinders large-scale production and prevents automakers from having a price advantage. Therefore, this application proposes a novel low-voltage thin-walled shielded multi-core cable for automobiles.

[0005] This application adopts the following scheme: a novel low-voltage thin-walled shielded multi-core cable for automobiles, comprising a conductor, an insulation layer covering the outer periphery of the conductor, a reinforcing layer group covering the outer periphery of the insulation layer, and a sheath layer covering the outer periphery of the reinforcing layer group. The conductor comprises N conductors, and the insulation layer covers the outer periphery of each conductor. The conductor is made of tin-plated copper-clad aluminum.

[0006] In one embodiment, N is a positive even number greater than 2, and the conductor is composed of multiple strands of alloy single wires twisted together. The alloy single wires are made of tin-plated copper-clad aluminum, and the density of the alloy single wires is 4.9 g / cm³. 3 -5.5g / cm 3 .

[0007] In one embodiment, the multiple alloy single wires are twisted together in a 1+6+12+19 arrangement.

[0008] In one embodiment, the conductor has a pitch ratio of 15.

[0009] In one embodiment, the insulating layer is made of environmentally friendly 125°C irradiated crosslinked polyolefin material, and the density of the insulating layer is 1.4 g / cm³. 3 -1.5g / cm 3 .

[0010] In one embodiment, the reinforcing layer group includes a wrapping layer covering the outer periphery of the wire core and a braided layer covering the outer periphery of the wrapping layer, the thickness of the braided layer being twice the thickness of the wrapping layer.

[0011] In one embodiment, the wrapping layer is made of aluminum foil, and the thickness of the wrapping layer is 0.03mm-0.05mm.

[0012] In one embodiment, the braided layer is made of tin-plated copper-clad aluminum alloy, the braiding pitch of the braided layer is 40mm-45mm, and the braiding angle of the braided layer is 55°-65°.

[0013] In one embodiment, the sheath layer is made of 125 polyolefin flame-retardant radiation crosslinked material, and the density of the sheath layer is 1.5 g / cm³. 3 -1.6g / cm 3 .

[0014] In one embodiment, a flocculent support is filled between the reinforcing layer and the core, and the flocculent support is made of polyester fiber.

[0015] Compared with the prior art, this application has the following beneficial effects:

[0016] This application provides a novel low-voltage thin-walled shielded multi-core cable for automobiles, comprising a conductor core, an insulation layer covering the outer periphery of the conductor core, a reinforcing layer group covering the outer periphery of the insulation layer, and a sheath layer covering the outer periphery of the reinforcing layer group. The conductor core comprises N conductors, with the insulation layer covering the outer periphery of each conductor. The conductors are made of tin-plated copper-clad aluminum. By replacing the conductor material from Category 5 pure copper conductors with tin-plated copper-clad aluminum, the conductor density is significantly reduced, significantly reducing the material cost of the cable. In practical applications, this can reduce the procurement costs for automakers, thereby reducing the overall manufacturing cost of automobiles. Ultimately, this will improve the consumer experience, providing consumers with high-quality, low-priced products. It has the advantages of simple structure, low implementation cost, stable structure, and ease of promotion and implementation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of a novel low-voltage thin-walled shielded multi-core cable for automobiles, as described in this application. Detailed Implementation

[0018] Combination Figure 1 The content shown further illustrates the technical solution provided in this application: a novel low-voltage thin-walled shielded multi-core cable for automobiles, comprising a conductor 1, an insulation layer 2 covering the outer periphery of the conductor 1, a reinforcing layer group 3 covering the outer periphery of the insulation layer 2, and a sheath layer 4 covering the outer periphery of the reinforcing layer group 3. The conductor 1 comprises N strands of conductor 10, and the insulation layer 2 covers the outer periphery of each strand of conductor 10. The material of the conductor 10 is tin-plated copper-clad aluminum.

[0019] This application provides a novel low-voltage thin-walled shielded multi-core cable for automobiles, comprising a conductor core, an insulation layer covering the outer periphery of the conductor core, a reinforcing layer group covering the outer periphery of the insulation layer, and a sheath layer covering the outer periphery of the reinforcing layer group. The conductor core comprises N conductors, with the insulation layer covering the outer periphery of each conductor. The conductors are made of tin-plated copper-clad aluminum. By replacing the conductor material from Category 5 pure copper conductors with tin-plated copper-clad aluminum, the conductor density is significantly reduced, significantly reducing the material cost of the cable. In practical applications, this can reduce the procurement costs for automakers, thereby reducing the overall manufacturing cost of automobiles. Ultimately, this will improve the consumer experience, providing consumers with high-quality, low-priced products. It has the advantages of simple structure, low implementation cost, stable structure, and ease of promotion and implementation.

[0020] In this embodiment, N is a positive even number greater than 2. The conductor 10 is made of multiple strands of alloy single wire 11 twisted together. The alloy single wire 11 is made of tin-plated copper-clad aluminum and has a density of 4.9 g / cm³. 3 -5.5g / cm 3 .

[0021] In actual implementation, for example, N can be 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24 or 26, etc.

[0022] In actual implementation, the average density of the alloy single wire is 5.1 g / cm³. 3 .

[0023] In this embodiment, the multiple alloy single wires 11 are twisted together in a 1+6+12+19 arrangement.

[0024] In this embodiment, the diameter ratio of the conductor 10 is 15 times.

[0025] In actual implementation, the conductor process adopts a standard stranding method: a 1+6+12+19 arrangement. During operation, the conductor filaments are evenly stressed, and the stress points are distributed. The conductor junction diameter ratio is stranded at 15 times. The smaller the junction diameter ratio, the tighter and rounder the conductor stranding, which makes it easier to extrude insulation in the next process. The conductor is relatively lightweight, and the conductor manufacturing cost is low.

[0026] In this embodiment, the insulating layer 2 is made of environmentally friendly 125-degree polyolefin irradiated crosslinking material, and the density of the insulating layer 2 is 1.4 g / cm³. 3 -1.5g / cm 3 .

[0027] In actual implementation, the average density of the insulation layer is 1.45 g / cm³. 3 .

[0028] In actual implementation, the insulation layer is extruded using an extrusion method. During the extrusion process, the outer die has a length of 20mm. The above extrusion method has high extrusion pressure, which facilitates rapid molding of the insulation layer and results in a smooth appearance. After extrusion, the insulation layer will be irradiated to significantly improve the temperature resistance of the insulation layer and greatly enhance its high-temperature resistance to meet the requirements of use under high-temperature conditions inside automobiles.

[0029] In this embodiment, the reinforcing layer group 3 includes a wrapping layer 30 covering the outer periphery of the wire core 1, and a braided layer 31 covering the outer periphery of the wrapping layer 30. The thickness of the braided layer 31 is twice the thickness of the wrapping layer 30.

[0030] In this embodiment, the material of the wrapping layer 30 is aluminum foil, and the thickness of the wrapping layer 30 is 0.03mm-0.05mm.

[0031] In this embodiment, the braided layer 31 is made of tin-plated copper-clad aluminum alloy, the braiding pitch of the braided layer 31 is 40mm-45mm, and the braiding angle of the braided layer 31 is 55°-65°.

[0032] In actual implementation, by setting the braiding pitch and braiding angle, the shielding attenuation performance and transfer impedance data can be effectively improved.

[0033] In this embodiment, the sheath layer 4 is made of 125 polyolefin flame-retardant radiation crosslinked material, and the density of the sheath layer 4 is 1.5 g / cm³. 3 -1.6g / cm 3 .

[0034] In actual implementation, the average density of the sheath layer is 1.55 g / cm³. 3 .

[0035] In practice, the sheath layer is extruded using a semi-extrusion process, which facilitates easy separation between the sheath layer and the braided layer, improves the plasticization of the sheath, enhances the material's temperature resistance and flame retardant properties, eliminates potential product hazards caused by poor high-temperature resistance and flame retardancy, provides a stable product for the automotive industry, and this design also meets the lightweight product positioning requirements of new energy vehicles, satisfying market demand.

[0036] In this embodiment, a flocculent support 5 is filled between the reinforcing layer 3 and the core 1, and the flocculent support 5 is made of polyester fiber.

[0037] This application provides a novel low-voltage thin-walled shielded multi-core cable for automobiles, comprising a conductor core, an insulation layer covering the outer periphery of the conductor core, a reinforcing layer group covering the outer periphery of the insulation layer, and a sheath layer covering the outer periphery of the reinforcing layer group. The conductor core comprises N conductors, with the insulation layer covering the outer periphery of each conductor. The conductors are made of tin-plated copper-clad aluminum. By replacing the conductor material from Category 5 pure copper conductors with tin-plated copper-clad aluminum, the conductor density is significantly reduced, significantly reducing the material cost of the cable. In practical applications, this can reduce the procurement costs for automakers, thereby reducing the overall manufacturing cost of automobiles. Ultimately, this will improve the consumer experience, providing consumers with high-quality, low-priced products. It has the advantages of simple structure, low implementation cost, stable structure, and ease of promotion and implementation.

[0038] The above are merely embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel low-voltage thin-walled shielded multi-core cable for automobiles, characterized in that, It includes a wire core (1), an insulation layer (2) covering the outer periphery of the wire core (1), a reinforcing layer group (3) covering the outer periphery of the insulation layer (2), and a sheath layer (4) covering the outer periphery of the reinforcing layer group (3). The wire core (1) includes N strands of conductors (10). The insulation layer (2) covers the outer periphery of each strand of the conductor (10). The material of the conductor (10) is tin-plated copper-clad aluminum. N is a positive even number greater than 2. The conductor (10) is made of multiple alloy single wires (11) twisted together. The alloy single wires (11) are made of tin-plated copper-clad aluminum and the density of the alloy single wires (11) is 4.9g / cm³-5.5g / cm³. The alloy single wires (11) are twisted together in a 1+6+12+19 arrangement.

2. The novel automotive low-voltage thin-walled shielded multi-core cable according to claim 1, characterized in that, The diameter ratio of the conductor (10) is 15 times.

3. A novel automotive low-voltage thin-walled shielded multi-core cable according to claim 1, characterized in that, The insulating layer (2) is made of environmentally friendly 125-degree polyolefin irradiated crosslinking material, and the density of the insulating layer (2) is 1.4g / cm³-1.5g / cm³.

4. A novel automotive low-voltage thin-walled shielded multi-core cable according to claim 1, characterized in that, The reinforcing layer group (3) includes a wrapping layer (30) covering the outer periphery of the wire core (1) and a braided layer (31) covering the outer periphery of the wrapping layer (30), wherein the thickness of the braided layer (31) is twice the thickness of the wrapping layer (30).

5. A novel automotive low-voltage thin-walled shielded multi-core cable according to claim 4, characterized in that, The material of the wrapping layer (30) is aluminum foil, and the thickness of the wrapping layer (30) is 0.03mm-0.05mm.

6. A novel automotive low-voltage thin-walled shielded multi-core cable according to claim 4, characterized in that, The braided layer (31) is made of tin-plated copper-clad aluminum alloy, the braiding pitch of the braided layer (31) is 40mm-45mm, and the braiding angle of the braided layer (31) is 55°-65°.

7. A novel automotive low-voltage thin-walled shielded multi-core cable according to claim 1, characterized in that, The sheath layer (4) is made of 125 polyolefin flame retardant radiation crosslinking material, and the density of the sheath layer (4) is 1.5g / cm³-1.6g / cm³.

8. A novel automotive low-voltage thin-walled shielded multi-core cable according to claim 1, characterized in that, The reinforcing layer (3) and the core (1) are filled with a flocculent support (5), which is made of polyester fiber.

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