Automobile instrument wire harness outer protective sleeve

Abstract

The utility model relates to harness protective sleeve technical field especially relates to a kind of automobile instrument harness outer protective sleeve, including protective sleeve body, the protective sleeve body includes by inside to outside sequentially arranged buffer layer, heat insulation layer and wear-resistant layer;The buffer layer is made of polyurethane foam material with elasticity, inside is provided with multiple honeycomb-shaped buffer cavities;The heat insulation layer is composed of aerogel felt;The wear-resistant layer is woven from ultra-high molecular weight polyethylene fiber.This utility model adopts the multilayer structure design of buffer layer, heat insulation layer and wear-resistant layer by inside to outside sequentially arranged, can efficiently absorb and disperse external impact force, reduce the risk of harness mechanical damage, block high temperature, prevent harness from aging due to overheating.

Description

Technical Field

[0001] This utility model relates to the field of wire harness protective sleeve technology, and in particular to an outer protective sleeve for automotive instrument wire harness. Background Technology

[0002] During vehicle operation, the instrument panel wiring harness, as a key component for transmitting electrical signals, is crucial for the safe and stable operation of the vehicle. Existing protective sleeves for automotive instrument panel wiring harnesses often fail to meet the multiple protection requirements under complex operating conditions. Some sleeves use only a single material, which cannot simultaneously withstand mechanical impact, high temperatures, and external friction, making the wiring harness susceptible to damage from impacts, aging due to high temperatures, or reduced lifespan due to frequent friction. Furthermore, traditional protective sleeves are generally cylindrical in structure, inserting the wiring harness inside, which makes it inconvenient to inspect, install, or remove the wiring harness. Utility Model Content

[0003] The purpose of this utility model is to provide an outer protective sleeve for automotive instrument wiring harnesses. Existing outer protective sleeves for automotive instrument wiring harnesses are made of a single material and have insufficient protective performance, making it difficult to simultaneously cope with mechanical impact, high temperature and friction, as well as the inconvenience of installing, inspecting and disassembling traditional cylindrical structure wiring harnesses.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An outer protective cover for automotive instrument wiring harness includes a protective cover body, which comprises a buffer layer, a heat insulation layer, and a wear-resistant layer arranged sequentially from the inside to the outside; the buffer layer is made of elastic polyurethane foam material and has multiple honeycomb-shaped buffer cavities inside; the heat insulation layer is composed of aerogel felt; and the wear-resistant layer is woven from ultra-high molecular weight polyethylene fibers.

[0006] Preferably, the protective sleeve has an opening along its length, and a magnetic connection assembly is provided at the opening. The magnetic connection assembly includes magnetic strips respectively fixed to the two sides of the opening.

[0007] Preferably, both ends of the protective sleeve are provided with sealing rings, the sealing rings are made of silicone rubber material, and the inner ring of the sealing ring is provided with an annular sealing groove to enhance the sealing effect.

[0008] Preferably, the inner surface of the buffer layer is provided with a plurality of raised anti-slip strips, the anti-slip strips being wavy.

[0009] Preferably, plastic retaining rings are evenly bonded to the outer side of the protective sleeve body, and plastic cable ties are provided on the outer side of the protective sleeve body, with the plastic cable ties passing through the plastic retaining rings to further secure the protective sleeve body.

[0010] Preferably, the outer surface of the wear-resistant layer is coated with an anti-corrosion coating, which is an epoxy resin coating.

[0011] This utility model has at least the following beneficial effects:

[0012] The system employs a multi-layered structural design, consisting of a buffer layer, a heat insulation layer, and a wear-resistant layer arranged sequentially from the inside out. The polyurethane foam material in the buffer layer, combined with a honeycomb-shaped buffer cavity, efficiently absorbs and disperses external impact forces, significantly reducing the risk of mechanical damage to the wiring harness. The aerogel felt in the heat insulation layer, with its extremely low thermal conductivity, effectively blocks high temperatures, preventing the wiring harness from aging due to overheating. The ultra-high molecular weight polyethylene fiber in the wear-resistant layer possesses excellent wear resistance and tear resistance, resisting external friction and scratches. These three elements work synergistically to provide comprehensive, multi-layered protection for the instrument panel wiring harness from multiple dimensions, including mechanical protection, temperature isolation, and wear and scratch resistance, significantly extending the harness's service life and ensuring the stable operation of the automotive instrument system.

[0013] The protective sleeve has an opening along its length and is equipped with a magnetic connection component. The opening design makes it very convenient to install and remove the wiring harness. The magnetic connection component, through the magnetic force of the magnetic strip and the cooperation of the plastic cable tie, can quickly and securely close the opening, effectively preventing the opening from accidentally coming loose during vehicle bumps. This ensures both ease of use and the stability of the protective sleeve in protecting the wiring harness. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the protective sleeve body of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the magnetic strip in this practical application;

[0018] Figure 4 This is a schematic diagram of the anti-slip strip structure of this utility model.

[0019] In the diagram: 1. Protective cover body; 11. Wear-resistant layer; 12. Heat insulation layer; 13. Buffer layer; 14. Opening; 2. Plastic cable tie; 3. Plastic retaining ring; 4. Sealing ring; 5. Magnetic strip; 6. Anti-slip strip. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Reference Figure 1-4 An outer protective cover for automotive instrument wiring harness includes a protective cover body 1. The protective cover body 1 includes a buffer layer 13, a heat insulation layer 12, and a wear-resistant layer 11 arranged sequentially from the inside to the outside. The buffer layer 13 is made of elastic polyurethane foam material and has multiple honeycomb-shaped buffer cavities inside. The heat insulation layer 12 is made of aerogel felt. The wear-resistant layer 11 is woven from ultra-high molecular weight polyethylene fiber.

[0023] The honeycomb-shaped buffer cavity of the buffer layer 13 can effectively absorb and disperse external impact forces, protecting the internal wiring harness from mechanical damage; the aerogel felt of the heat insulation layer 12 can block high temperatures and prevent the wiring harness from aging due to overheating; the ultra-high molecular weight polyethylene fiber of the wear-resistant layer 11 can resist external friction and scratches, extending the service life of the protective sleeve. The three work together to comprehensively ensure the normal use of the instrument wiring harness.

[0024] Furthermore, the protective sleeve has an opening 14 along its length, and a magnetic connection assembly is provided at the opening 14. The magnetic connection assembly includes magnetic strips that are respectively fixed to the two sides of the opening 14.

[0025] The opening 14 of the protective sleeve is designed to facilitate the installation and removal of the wire harness. The magnetic connection component can quickly and firmly close the opening 14 through the magnetic force of the magnetic strip. Compared with traditional buckles, zippers and other connection methods, it is easier to operate and has high connection stability, which can prevent the opening 14 from accidentally coming loose during use.

[0026] Furthermore, both ends of the protective sleeve are provided with sealing rings 4. The sealing rings 4 are made of silicone rubber material. The inner ring of the sealing ring 4 is provided with an annular sealing groove to enhance the sealing effect. The annular sealing groove can form a tighter sealing structure when the sealing ring 4 comes into contact with the wiring harness or other connecting parts, effectively filling any gaps that may exist and further preventing external impurities from entering. Compared with ordinary sealing rings 4, the sealing performance is significantly improved, and the instrument wiring harness is better protected.

[0027] The silicone rubber sealing ring 4 has good elasticity and sealing performance, which can effectively prevent dust, moisture, oil and other impurities from entering the protective sleeve, avoiding damage such as corrosion and short circuits to the wire harness, and further improving the protective performance of the protective sleeve.

[0028] Furthermore, the inner surface of the buffer layer 13 is provided with a plurality of raised anti-slip strips 6, which are wavy in shape.

[0029] The wavy anti-slip strip 6 increases the friction between the buffer layer 13 and the instrument wiring harness, making it less likely for the protective cover to slide or shift after installation. This ensures that the protective cover always provides stable protection for the wiring harness, making it especially suitable for scenarios where there is vibration or bumps during vehicle operation.

[0030] Furthermore, plastic retaining rings 3 are evenly adhered to the outer side of the protective sleeve body 1. A reusable, manually detachable plastic cable tie 2 is provided on the outer side of the protective sleeve body 1. The plastic cable tie 2 passes through the plastic retaining rings 3 to further secure the protective sleeve body 1. One end of the plastic cable tie 2 has a locking buckle with a one-way toothed groove structure inside. The other end has a claw that engages with the one-way toothed groove. When the plastic cable tie 2 passes through the plastic retaining rings 3 and surrounds the protective sleeve body 1, pulling the cable tie causes the claw to engage with the one-way toothed groove, thus locking and securing the cable tie. When it is necessary to untie the cable tie, pressing the unlock button on the locking buckle activates the internal unlocking rod, lifting the claw and separating it from the one-way toothed groove, allowing easy untying of the cable tie. This facilitates adjusting the position of the protective sleeve or reinstalling the wire harness, while also enabling the cable tie to be reused. The opening on the protective sleeve allows for easy access to and from the wire harness. After access, the opening can be closed using a magnetic attachment. In addition, the use of plastic cable ties prevents the opening on the protective sleeve from opening easily.

[0031] Furthermore, the outer surface of the wear-resistant layer 11 is coated with an anti-corrosion coating, which is an epoxy resin coating.

[0032] The epoxy resin coating has excellent anti-corrosion properties, which can resist the erosion of the wear-resistant layer 11 by corrosive substances such as acids, alkalis and salt spray, protect the structure and performance stability of the wear-resistant layer 11, extend the overall service life of the protective sleeve, and ensure that the wire harness can play a good protective role even in harsh environments.

[0033] In summary, through a multi-layered structural design that combines a buffer layer, a heat insulation layer, and a wear-resistant layer, the device provides comprehensive protection for instrument wiring harnesses from multiple dimensions, including mechanical protection, temperature isolation, and wear and scratch resistance. The magnetic connection components, combined with an open design, ensure both ease of installation and connection stability. Sealing rings, anti-slip strips, plastic retaining rings, and cable ties further enhance the sealing and securing effect of the protective sleeve. The anti-corrosion coating and special sealing groove design effectively address the challenges of complex environments. The various structural components work together synergistically, significantly improving the protective performance, practicality, and durability of the protective sleeve compared to existing technologies.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An outer protective cover for an automobile instrument harness, comprising a protective cover body (1), characterized in that, The protective sleeve body (1) includes a buffer layer (13), a heat insulation layer (12) and a wear-resistant layer (11) arranged sequentially from the inside to the outside; the buffer layer (13) is made of elastic polyurethane foam material and has multiple honeycomb-shaped buffer cavities inside; the heat insulation layer (12) is made of aerogel felt; the wear-resistant layer (11) is woven from ultra-high molecular weight polyethylene fiber.

2. The outer protective sleeve for an automobile instrument wire harness according to claim 1, wherein The protective sleeve has an opening (14) along its length, and a magnetic connection assembly is provided at the opening (14). The magnetic connection assembly includes magnetic strips (5) fixed to the two sides of the opening (14).

3. The outer protective sleeve for an automobile instrument wire harness according to claim 1, wherein Both ends of the protective sleeve are provided with sealing rings (4), which are made of silicone rubber material. The inner ring of the sealing ring (4) is provided with an annular sealing groove to enhance the sealing effect.

4. The outer protective sleeve for an automobile instrument wire harness according to claim 3, wherein The inner surface of the buffer layer (13) is provided with a plurality of raised anti-slip strips (6), which are wavy.

5. The outer protective sleeve for an automobile instrument wire harness according to claim 1, wherein Plastic retaining rings (3) are evenly bonded to the outer side of the protective sleeve body (1), and plastic cable ties (2) are provided on the outer side of the protective sleeve body (1). The plastic cable ties (2) pass through the plastic retaining rings (3) to further fix the protective sleeve body (1).

6. The outer protective sleeve for an automobile instrument wire harness according to claim 1, wherein The outer surface of the wear-resistant layer (11) is coated with an anti-corrosion coating, which is an epoxy resin coating.

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