Automobile wire with a sheath layer

Abstract

The utility model relates to the technical field of automobile wire, specifically relates to a kind of automobile wire with sheath layer, comprising: conductor;Insulating layer, fixedly covered in the conductor outside;Sheath layer, fixedly covered in the insulating layer outside;Wherein, the conductor, the insulating layer with the sheath layer length are same;The radius of the conductor is greater than the thickness of the insulating layer with the thickness of the sheath layer;The conductor includes: inner layer conductor;Outer layer conductor, fixedly covered in the inner layer conductor outside;The insulating layer is fixedly covered in the outer layer conductor outside;The inner layer conductor, the outer layer conductor with the insulating layer length are same.By the setting of sheath layer, on the one hand, conductor and insulating layer are protected, especially to avoid the direct damage of insulating layer;On the other hand, sheath layer and insulating layer constitute double insulation structure, improve the electrical insulation performance of wire, reduce the risk of electric leakage.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring technology, specifically to an automotive wiring harness with a sheath layer. Background Technology

[0002] In modern automotive electrical systems, wires are key components for electrical energy transmission. Their structure mainly consists of conductors for conducting electricity and an insulating layer for protection. The insulating layer not only prevents short circuits caused by contact between the conductors and the outside environment but also avoids interference between conductors, ensuring the normal operation of the automotive electrical system.

[0003] However, during actual use of automobiles, the insulation layer of wires is prone to wear due to continuous vehicle vibration, friction between components, and the complex working environment. Once the insulation layer is worn away, the conductor will be exposed, which will lead to a decrease in the insulation performance of the wire, increasing the risk of leakage and short circuits. In severe cases, it may even cause safety accidents such as fires, threatening the safety and reliability of the vehicle.

[0004] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0005] The purpose of this invention is to provide an automotive wiring harness with a sheath layer.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An automotive wiring harness with a sheath layer, comprising:

[0008] conductor;

[0009] An insulating layer is fixedly sleeved on the outside of the conductor;

[0010] A sheath layer is fixedly sleeved on the outside of the insulating layer;

[0011] Wherein, the conductor, the insulating layer, and the sheath layer have the same length;

[0012] The radius of the conductor is greater than the thickness of the insulation layer and the thickness of the sheath layer.

[0013] This application does not change the working principle of automotive wiring harnesses.

[0014] In the above scheme, the sheath layer protects the conductor and the insulation layer, especially preventing direct damage to the insulation layer. On the other hand, the sheath layer and the insulation layer form a double insulation structure, which improves the electrical insulation performance of the conductor and reduces the risk of leakage.

[0015] The conductor's radius is greater than the thickness of the insulation layer and the sheath layer. This can be understood as the conductor being thicker while the insulation and sheath layers are thinner. Based on this, the current carrying capacity of the conductor can be guaranteed to a certain extent, but it can also cause the temperature of the insulation layer to rise easily. By forming a double insulation structure with the sheath layer and the insulation layer, the risk of leakage can be avoided. The specific dimensions of the three components are not limited here.

[0016] The conductor, insulation layer, and sheath layer are of the same length, which improves the reliability of electrical connections and the stability of mechanical properties of automotive wiring harnesses.

[0017] In summary, the automotive wiring harness in this application has strong insulation properties, a low risk of leakage or short circuit, and ensures the safety and reliability of the vehicle during operation.

[0018] In some implementations, the conductor is a copper conductor.

[0019] In some embodiments, the diameter of the conductor ranges from 1.36 to 1.45 mm.

[0020] In a further technical solution, the thickness of the insulating layer is greater than or equal to the thickness of the sheath layer.

[0021] The insulation layer primarily serves the function of electrical isolation, while the sheath layer focuses on mechanical protection and environmental resistance.

[0022] If the thickness of the insulation layer is greater than or equal to the thickness of the sheath layer, the thickness of the insulation layer can be considered guaranteed, thus enabling electrical isolation. The thickness of the sheath layer is limited by the thickness of the insulation layer to avoid a significant increase in the cost and space required for automotive wiring due to excessive thickness, thereby ensuring the applicability of automotive wiring.

[0023] In some embodiments, the thickness of the insulation layer is 0.1 mm, and the thickness of the sheath layer is 0.08-0.1 mm.

[0024] In a further technical solution, the insulation layer is a PVC insulation layer, and the sheath layer is a nylon sheath layer.

[0025] This embodiment further refines the insulation layer and the sheath layer. Through material settings, both can meet the above functions while ensuring the temperature resistance of the automotive wiring harness, ensuring that the automotive wiring harness can be used for a long time, thereby ensuring the applicability of the automotive wiring harness.

[0026] In a further technical solution, the conductor comprises:

[0027] Inner conductor;

[0028] The outer conductor is fixedly sleeved on the outside of the inner conductor;

[0029] The insulating layer is fixedly sleeved on the outside of the outer conductor;

[0030] The inner conductor, the outer conductor, and the insulating layer have the same length.

[0031] This embodiment refines the conductor, where the inner conductor carries the main current and provides a low-resistance path, while the outer conductor enhances the conductor's flexibility and bending resistance, and also assists in conductivity. It should be noted that the functions of both can be adjusted depending on the specific setup.

[0032] The inner conductor, outer conductor, and insulation layer are of the same length, which improves the reliability of electrical connections in automotive wiring harnesses.

[0033] In some embodiments, the inner conductor is made of five strands of 0.4 mm single wires twisted together, and the outer conductor is made of eleven strands of 0.35 mm single wires twisted together.

[0034] A further technical solution includes a filling layer disposed inside the insulating layer to fill the gap between the conductor and the insulating layer.

[0035] The filler layer densely fills the gap between the conductor and the insulation layer to prevent moisture from easily penetrating into the conductor, thereby improving the conductor's service life and ensuring the service life of automotive wiring harnesses.

[0036] The filler layer effectively improves the leakage prevention capability of automotive wiring harnesses, thereby enhancing their reliability.

[0037] In a further technical solution, the filling layer is configured as a water-resistant adhesive filling layer.

[0038] This embodiment refines the filler layer, achieving its function while avoiding a significant increase in cost and weight of the automotive wiring harness. It should be noted that the cost, size, and weight of automotive wiring harnesses all affect their applicability and market competitiveness.

[0039] There are no restrictions on the specific choice of water-blocking adhesive.

[0040] In a further technical solution, the filling layer is disposed at both ends of the insulating layer along its own length direction.

[0041] It should be noted that, as mentioned above, the sheath layer and the insulation layer form a double insulation structure (which can also be seen as a double protection structure), preventing moisture from easily penetrating the conductor through the outer insulation structure. Based on this, this embodiment only places the filler layer at both ends of the insulation layer along its own length (which can also be described as the length direction of the automotive wire), further preventing a significant increase in the cost of the automotive wire. This embodiment primarily prevents moisture from easily penetrating the conductor after the ends of the (double) insulation structure are stripped. Taking a conductor consisting of multiple individual wires as an example, it prevents moisture from flowing between the individual wires, ultimately preventing premature aging and performance failure of the wire.

[0042] In summary, the automotive wiring harness of this application has strong anti-leakage capability, long service life, and high reliability during use.

[0043] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0044] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0045] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0046] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0047] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0048] The working principle and advantages of this utility model are as follows:

[0049] By setting a sheath layer, on the one hand, the conductor and the insulation layer are protected, especially to prevent direct damage to the insulation layer; on the other hand, the sheath layer and the insulation layer form a double insulation structure, which improves the electrical insulation performance of the conductor and reduces the risk of leakage.

[0050] The conductor's radius is greater than the thickness of the insulation layer and the sheath layer. This can be understood as the conductor being thicker and the insulation and sheath layers being thinner. Based on this, the current carrying capacity of the conductor can be guaranteed to a certain extent, but it will also cause the temperature of the insulation layer to rise easily. By forming a double insulation structure with the sheath layer and the insulation layer, the risk of leakage can be avoided.

[0051] The conductor, insulation layer, and sheath layer are of the same length, which improves the reliability of electrical connections and the stability of mechanical properties of automotive wiring harnesses.

[0052] In summary, the automotive wiring harness in this application has strong insulation properties, a low risk of leakage or short circuit, and ensures the safety and reliability of the vehicle during operation. Attached Figure Description

[0053] Figure 1 This is a cross-sectional view of an automotive wiring harness according to an embodiment of the present invention;

[0054] Figure 2 This is a dimensional schematic diagram of the internal structure of the automotive wiring harness according to an embodiment of the present invention.

[0055] In the above attached diagram: 1. Conductor; 11. Inner conductor; 12. Outer conductor; 2. Insulation layer; 3. Sheath layer. Detailed Implementation

[0056] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0057] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0058] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0059] See Figures 1-2 An automotive wiring harness with a sheath layer, comprising:

[0060] Conductor 1;

[0061] Insulating layer 2 is fixedly sleeved on the outside of conductor 1;

[0062] Sheath layer 3 is fixedly sleeved on the outside of the insulating layer 2;

[0063] Wherein, the conductor 1, the insulating layer 2, and the sheath layer 3 have the same length;

[0064] The radius of the conductor 1 (half of L1 in the figure) is greater than the thickness of the insulating layer 2 (L2 in the figure) and greater than the thickness of the sheath layer 3 (L3 in the figure).

[0065] The conductor 1 includes:

[0066] Inner conductor 11;

[0067] The outer conductor 12 is fixedly sleeved on the outside of the inner conductor 11;

[0068] The insulating layer 2 is fixedly sleeved on the outside of the outer conductor 12;

[0069] The inner conductor 11, the outer conductor 12, and the insulating layer 2 have the same length.

[0070] This application does not change the working principle of automotive wiring harnesses.

[0071] By setting the sheath layer 3, on the one hand, the conductor 1 and the insulation layer 2 are protected, especially to prevent the insulation layer 2 from being directly damaged; on the other hand, the sheath layer 3 and the insulation layer 2 form a double insulation structure, which improves the electrical insulation performance of the conductor and reduces the risk of leakage.

[0072] The radius of conductor 1 is greater than the thickness of insulation layer 2 and sheath layer 3. This can be understood as conductor 1 being thicker while insulation layer 2 and sheath layer 3 are thinner. Based on this, the current carrying capacity of the conductor can be guaranteed to a certain extent, but it will also cause the temperature of insulation layer 2 to rise easily. By forming a double insulation structure with sheath layer 3 and insulation layer 2, the risk of leakage can be avoided. The specific dimensions of the three are not limited here.

[0073] Conductor 1, insulation layer 2, and sheath layer 3 are of the same length, which improves the reliability of electrical connections and the stability of mechanical properties of automotive wiring harnesses.

[0074] In conductor 1, the inner conductor 11 carries the main current and provides a low-resistance path, while the outer conductor 12 enhances the flexibility and bending resistance of conductor 1 and also assists in conduction. It should be noted that the functions of both can be adjusted according to the specific setup.

[0075] The inner conductor 11, the outer conductor 12 and the insulation layer 2 are of the same length, which improves the reliability of the electrical connection of the automotive wiring.

[0076] In some embodiments, the inner conductor 11 is made of five strands of 0.4 mm single wires, preferably hard alloy wire (99.7% copper plus 0.3% tin, the tin-copper alloy has a tensile strength of 600 MPa or more and an elongation of ≥2%), to ensure the strength of the inner conductor and increase the tensile strength of the wire; the outer conductor 12 is made of eleven strands of 0.35 mm single wires, using oxygen-free copper, with a tensile strength of about 250 MPa and a breakage rate of ≥15%.

[0077] In summary, the automotive wiring harness in this application has strong insulation properties, a low risk of leakage or short circuit, and ensures the safety and reliability of the vehicle during operation.

[0078] In some embodiments, conductor 1 is configured as a copper conductor.

[0079] In some embodiments, the diameter of conductor 1 ranges from 1.36 to 1.45 mm.

[0080] In this embodiment, the thickness of the insulating layer 2 is greater than or equal to the thickness of the sheath layer 3.

[0081] Insulation layer 2 primarily serves the function of electrical isolation, while sheath layer 3 focuses on mechanical protection and environmental resistance.

[0082] The thickness of insulation layer 2 is greater than or equal to the thickness of sheath layer 3, which can be considered as ensuring the thickness of insulation layer 2 and enabling electrical isolation. The thickness of sheath layer 3 is limited by the thickness of insulation layer 2 to avoid a significant increase in the cost and required space of automotive wiring due to its greater thickness, thus ensuring the applicability of automotive wiring.

[0083] In some embodiments, the thickness of the insulating layer 2 is 0.1 mm, and the thickness of the sheath layer 3 is 0.08-0.1 mm.

[0084] In this embodiment, the insulating layer 2 is a PVC insulating layer, and the sheath layer 3 is a nylon sheath layer.

[0085] This embodiment further refines the insulation layer 2 and the sheath layer 3. Through material settings, both can meet the above functions while ensuring the temperature resistance of the automotive wiring harness, ensuring that the automotive wiring harness can be used for a long time, thereby ensuring the applicability of the automotive wiring harness.

[0086] In this embodiment, a filling layer (not shown in the figure) is also included, disposed inside the insulating layer 2, for filling the gap between the conductor 1 and the insulating layer 2.

[0087] The filler layer densely fills the gap between conductor 1 and insulation layer 2 to prevent moisture (also known as lubricant or humidity) from easily penetrating into conductor 1, thereby improving the service life of conductor 1 and ensuring the service life of automotive wiring.

[0088] The filler layer effectively improves the leakage prevention capability of automotive wiring harnesses, thereby enhancing their reliability.

[0089] In this embodiment, the filling layer is configured as a water-resistant adhesive filling layer.

[0090] This embodiment refines the filler layer, achieving its function while avoiding a significant increase in cost and weight of the automotive wiring harness. It should be noted that the cost, size, and weight of automotive wiring harnesses all affect their applicability and market competitiveness.

[0091] The specific choice of water-blocking adhesive is not limited here. In some cases, the water-blocking adhesive material is densely filled between the single wire (soft copper wire) and the insulation layer to absorb or block the flow of moisture between the single wires, reducing the risk of premature aging caused by water vapor and oil leakage.

[0092] In this embodiment, the filling layer is disposed at both ends of the insulating layer 2 along its own length direction.

[0093] It should be noted that, as mentioned above, the sheath layer 3 and the insulation layer 2 form a double insulation structure (which can also be seen as a double protection structure), preventing moisture from easily penetrating through the outer insulation structure of the conductor 1 and seeping into the conductor 1. Based on this, in this embodiment, the filler layer is only set at both ends of the insulation layer 2 along its own length direction (which can also be said to be the length direction of the automotive wire), further avoiding a significant increase in the cost of the automotive wire. This embodiment mainly prevents moisture from easily seeping into the conductor 1 after the ends of the (double) insulation structure are stripped. Taking the conductor 1 as an example that includes multiple single wires, it prevents moisture from flowing between the single wires, ultimately preventing premature aging and performance failure of the wire.

[0094] In summary, the automotive wiring harness of this application possesses strong leak-proof capabilities, can meet IP69 waterproof performance requirements after adjustments, has a long service life, and high reliability during use. Furthermore, the automotive wiring harness of this application has a simple and compact structure, enabling lightweight design, and ensures a more than 20% increase in pull-out force after terminal crimping.

[0095] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A car wiring harness with a sheath layer, characterized in that: include: Conductor (1); Insulating layer (2); Sheath layer (3) is fixedly sleeved on the outside of the insulating layer (2); Wherein, the conductor (1), the insulating layer (2), and the sheath layer (3) have the same length; The radius of the conductor (1) is greater than the thickness of the insulating layer (2) and greater than the thickness of the sheath layer (3); The conductor (1) comprises: Inner conductor (11); The outer conductor (12) is fixedly sleeved on the outside of the inner conductor (11); The insulating layer (2) is fixedly sleeved on the outside of the outer conductor (12); The inner conductor (11), the outer conductor (12), and the insulating layer (2) have the same length.

2. The automotive wire with a sheath layer according to claim 1, characterized in that: The thickness of the insulating layer (2) is greater than or equal to the thickness of the sheath layer (3).

3. The automotive wiring harness with a sheath layer according to claim 1, characterized in that: The insulation layer (2) is a PVC insulation layer, and the sheath layer (3) is a nylon sheath layer.

4. A car wiring harness with a sheath layer according to any one of claims 1-3, characterized in that: It also includes a filling layer disposed inside the insulating layer (2) for filling the gap between the conductor (1) and the insulating layer (2).

5. The automotive wire with a sheath layer according to claim 4, characterized in that: The filling layer is configured as a water-resistant adhesive filling layer.

6. The automotive wiring harness with a sheath layer according to claim 4, characterized in that: The filling layer is disposed at both ends of the insulating layer (2) along its own length direction.

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