High-safety automobile wiring harness

Abstract

The utility model relates to the field of automobile wiring harnesses, and particularly discloses a high-safety automobile wiring harness, which comprises a wire core and a heat insulation layer coated outside the wire core, the heat insulation layer is strip-shaped, the heat insulation layer is wound and fixed on the periphery of the wire core in a spiral manner, and a plurality of heat insulation cavities penetrating through the heat insulation layer along the length direction of the heat insulation layer are arranged in the heat insulation layer. The strip-shaped heat insulation layer is wound and wrapped on the periphery of the wire core in a spiral mode, so that the wire cores with different lengths can be wrapped, the wire cores can be protected by utilizing the heat insulation effect of the heat insulation layer, and the heat insulation effect of the heat insulation layer can be further improved by forming the heat insulation cavity and filling aerogel in the heat insulation cavity. Therefore, the situation that the wire harness is damaged due to high temperature is reduced, and the service life of the wire harness is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of auto parts wiring harnesses, in particular to a high-safety auto parts wiring harness. Background Art

[0002] The auto parts wiring harness is the main network of the automobile circuit and is mainly installed inside the automobile. Due to the poor heat dissipation inside the automobile, especially the wiring harness installed near heat sources such as the automobile engine, it is easily affected by the heat emitted by the heat source and is prone to line failure. The existing auto parts wiring harness is mainly coated with insulating tape on its periphery. The traditional insulating tape has poor thermal insulation and the protective effect on the wiring harness is not ideal.

[0003] Therefore, it is necessary to design a high-safety auto parts wiring harness to alleviate the above-mentioned technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a high-safety auto parts wiring harness to overcome the above-mentioned defects in the prior art.

[0005] According to the utility model, the high-safety auto parts wiring harness includes a wire core and a heat insulation layer wrapped around the wire core. The heat insulation layer is strip-shaped and spirally wound and fixed on the outer periphery of the wire core. The heat insulation layer is provided with a plurality of heat insulation cavities that penetrate the heat insulation layer along its length direction.

[0006] Through the above technical solution, the strip-shaped insulation layer is spirally wound and coated on the outer circumference of the wire core, so that wire cores of different lengths can be coated. The insulation effect of the insulation layer can be used to protect the wire core. The opening of the insulation cavity further increases the insulation effect of the insulation layer, thereby reducing the impact of the heat inside the car on the wire core.

[0007] The utility model is further configured as follows: a glue layer is coated on one side edge of the thermal insulation layer along its length, a connecting layer is fixedly provided on the other side edge of the thermal insulation layer along its length, and the connecting layer extends along the width direction of the thermal insulation layer toward one side away from the thermal insulation layer and can be bonded to the glue layer.

[0008] Through the above technical solution, the heat insulation layer is spirally wound on the outer periphery of the wire core, and the heat insulation layer covering effect can be ensured under the bonding action of the connecting layer and the glue layer.

[0009] The utility model is further configured as follows: when the heat insulation layer is in a strip shape, a layer of release paper is bonded to the glue layer.

[0010] The above technical solution is beneficial to the storage of the thermal insulation layer and prevents the glue layer from adhering to the rest of the thermal insulation layer during storage.

[0011] The utility model is further configured as follows: the glue layer is made of silicone type pressure-sensitive adhesive.

[0012] Through the above technical solution, the glue layer has excellent heat resistance and electrical insulation, so that the adhesion stability between the connecting layer and the glue layer is ensured during the process of the thermal insulation layer covering the outer periphery of the wire core.

[0013] The utility model is further configured that: the side of the connecting layer that is bonded to the glue layer is a frosted surface.

[0014] Through the above technical solution, the frosted surface of the connecting layer can increase the adhesion between it and the glue layer.

[0015] The utility model is further configured as follows: the heat insulation layer is made of silicone rubber.

[0016] Through the above technical solution, the heat insulation layer made of silicone rubber has better heat insulation and electrical insulation, thereby increasing its protection of the wire core.

[0017] The utility model is further configured as follows: two ends of the heat insulation cavity along the width direction of the heat insulation layer are arc-shaped, and the heat insulation cavity is filled with aerogel.

[0018] Through the above technical solution, the arc-shaped ends of the insulation cavity are conducive to the stress dispersion in the insulation layer, thereby increasing the supporting strength of the insulation layer. At the same time, the aerogel filled in the insulation cavity can further increase the thermal insulation of the insulation layer.

[0019] The beneficial effects of the utility model are as follows: the strip-shaped heat-insulating layer is spirally wound and coated on the outer circumference of the wire core, so that the wire cores of different lengths can be coated, the heat-insulating effect of the heat-insulating layer can be used to protect the wire core, and the heat-insulating effect of the heat-insulating layer can be further increased by opening a heat-insulating cavity and filling it with aerogel, thereby reducing the influence of the heat inside the car on the wire core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the winding state of the heat insulation layer in the utility model;

[0022] Figure 3 It is a cross-sectional view of the heat insulation layer of the utility model in the use state;

[0023] Figure 4 This utility model Figure 3 The enlarged schematic diagram at A in the middle;

[0024] Figure 5 It is a schematic diagram of the spreading state of the heat insulation layer in the utility model;

[0025] Figure 6It is a cross-sectional schematic diagram of the heat insulation layer in the utility model in a spread state;

[0026] Figure 7 This utility model Figure 6 Enlarged schematic diagram of point B in the middle.

[0027] In the figure:

[0028] 10. Wire core; 20. Thermal insulation layer; 21. Connecting layer; 22. Glue layer; 23. Thermal insulation cavity; 24. Release paper. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the scope of protection of the specific request of the utility model. As used in this article, the terms up and down and left and right are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors. The specific features of the high-safety auto parts wiring harness are described in detail below:

[0031] An embodiment of the utility model:

[0032] Reference Figure 1-Figure 7The utility model provides a high-safety auto parts wiring harness, including a wire core 10 and a heat insulation layer 20 wrapped outside the wire core 10, the heat insulation layer 20 is strip-shaped, the heat insulation layer 20 is spirally wound and fixed on the outer periphery of the wire core 10, the winding length of the heat insulation layer 20 can be adaptively adjusted with the length of the wire core 10, a plurality of heat insulation cavities 23 penetrating the heat insulation layer 20 along its length direction are opened in the heat insulation layer 20, a glue layer 22 is coated on one side edge of the heat insulation layer 20 along its length, a connecting layer 21 is fixed on the other side edge of the heat insulation layer 20 along its length, the connecting layer 21 extends along the width direction of the heat insulation layer 20 to the side away from the heat insulation layer 20 and can be bonded to the glue layer 22. On the water layer 22, when the thermal insulation layer 20 is in a strip shape, a layer of release paper 24 is bonded to the glue layer 22, the glue layer 22 is made of silicone pressure-sensitive adhesive, and the side where the connecting layer 21 is bonded to the glue layer 22 is a frosted surface. The thermal insulation layer 20 is made of silicone rubber, which is a rubber material with excellent high-temperature properties and can operate in the range of -60°C to 250°C. Silicone rubber has the characteristics of high thermal stability, oxidation resistance, electrical insulation, radiation resistance, high temperature resistance and aging resistance, so that it can better protect the wire core 10. The two ends of the thermal insulation cavity 23 along the width direction of the thermal insulation layer 20 are arc-shaped, and the thermal insulation cavity 23 is filled with aerogel.

[0033] During the process of winding the insulation layer 20 around the outer periphery of the core 10, the insulation layer 20 is wound in a spiral manner. After tearing off the release paper 24, the connecting layer 21 of the latter circle is adhered to the glue layer 22 of the previous circle, thereby achieving a fixed connection between two adjacent circles of the insulation layer 20, thereby ensuring that the insulation layer 20 is stably wrapped around the outer periphery of the core 10.

[0034] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A high-safety automotive wiring harness, comprising a wire core (10) and a heat insulation layer (20) coated outside the wire core (10), characterized in that: The heat insulation layer (20) is in strip shape and is spirally wound and fixed on the outer periphery of the wire core (10). The heat insulation layer (20) is provided with a plurality of heat insulation cavities (23) penetrating the heat insulation layer (20) along its length direction.

2. The high-safety auto parts wiring harness according to claim 1 is characterized in that: The heat insulation layer (20) is coated with a glue layer (22) on one side edge along the length thereof, and the heat insulation layer (20) is fixedly provided with a connection layer (21) on the other side edge along the length thereof, and the connection layer (21) extends along the width direction of the heat insulation layer (20) toward a side away from the heat insulation layer (20) and can be bonded to the glue layer (22).

3. The high-safety auto parts wiring harness according to claim 2 is characterized in that: When the heat insulation layer (20) is in a strip shape, a layer of release paper (24) is bonded to the glue layer (22).

4. The high-safety auto parts wiring harness according to claim 2 is characterized in that: The glue layer (22) is made of silicone pressure-sensitive adhesive.

5. The high-safety auto parts wiring harness according to claim 4 is characterized in that: The side of the connecting layer (21) that is bonded to the glue layer (22) is a frosted surface.

6. The high-safety auto parts wiring harness according to claim 1, characterized in that: The heat insulation layer (20) is made of silicone rubber.

7. The high-safety auto parts wiring harness according to claim 6, characterized in that: Both ends of the heat insulation cavity (23) along the width direction of the heat insulation layer (20) are arc-shaped, and the heat insulation cavity (23) is filled with aerogel.

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