Engine wire harness external protection device

Abstract

The utility model relates to the technical field of wire harness protection accessories, and discloses an external protection device for an engine wire harness, which comprises a braid, an outer wall of which is provided with a sealing assembly used for sealing two ends of the braid; the sealing assembly comprises fixing belts which are in bilateral symmetry, the ends of the fixing belts are fixed to a braid, hook-and-loop fastener thorn faces are fixed to the lower surfaces of the fixing belts, two sealing rings which are in bilateral symmetry are fixed to the interior of the braid, and hook-and-loop fastener loop faces which are in bilateral symmetry are fixed to the outer wall of the braid. The hook-and-loop fastener loop surface is attached to the hook-and-loop fastener thorn surface; and the fixing assembly is arranged on the braid and used for fixing the wire harness in the braid. According to the utility model, through the cooperation of the internal structures of the sealing assembly, the effect of improving the overall sealing performance of the device is achieved, and meanwhile, due to the design of the Newtonian fluid layer, when the braid is impacted by external force, Newtonian fluid can be rapidly hardened to protect internal engine wire harnesses.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness protection accessories, in particular to an external protection device for an engine wire harness. Background Art

[0002] The engine wiring harness refers to a system composed of wires, cables and connectors that connect various engine components. It is mainly responsible for transmitting power signals and control signals. Due to the high-temperature exhaust airflow in the engine compartment, the engine wiring harness is usually subjected to a high-temperature environment, so it needs to be equipped with a protective cover on its surface. The protective cover on the outside of the engine wiring harness can provide thermal protection, dust and water resistance, insulation protection and mechanical protection, thereby ensuring the normal operation of the wiring harness and extending its service life.

[0003] In the prior art, the external protection device of the wire harness mostly adopts a bellows for protection. However, since the temperature around the engine is generally very high, the traditional bellows is easily deformed and melted under the influence of high temperature, resulting in poor sealing effect on the wire harness. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides an engine wiring harness external protection device, which aims to improve the problem that traditional bellows are easily deformed and melted under the influence of high temperature, resulting in poor sealing effect on the wiring harness.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an engine wiring harness external protection device, comprising:

[0006] The braid has an outer wall provided with a sealing assembly for sealing both ends of the braid;

[0007] The sealing assembly includes a bilaterally symmetrical fixing belt, the ends of which are fixed to a braid, a Velcro thorn surface is fixed to the lower surface of the fixing belt, two bilaterally symmetrical sealing rings are fixed inside the braid, and a bilaterally symmetrical Velcro fleece surface is fixed to the outer wall of the braid, wherein the Velcro fleece surface and the Velcro thorn surface are in contact with each other;

[0008] A fixing assembly, which is provided on the braid and is used to fix the wiring harness inside the braid;

[0009] A non-Newtonian fluid layer is provided inside the braid.

[0010] As a further description of the above technical solution:

[0011] The fixing assembly includes a male buckle, and the outer wall of the male buckle is fixed to the upper surface of the braid.

[0012] As a further description of the above technical solution:

[0013] A plurality of female buckles are fixed to the outer wall of the braid, and the inner wall of the female buckle is engaged with the outer wall of the male buckle.

[0014] As a further description of the above technical solution:

[0015] The fixing assembly includes a limiting belt, both ends of which are fixed to one end of the outer wall of the braid, and the other end of the braid slides inside the limiting belt, and the limiting belt is used to limit the other end of the braid.

[0016] As a further description of the above technical solution:

[0017] A plurality of elastic bands 1 are fixed inside the braid, and a plurality of elastic bands 2 are fixed inside the braid. The elastic bands 1 and 2 are used for classifying multiple harnesses.

[0018] As a further description of the above technical solution:

[0019] A fluorescent strip is fixed on the outer wall of the braid, and the outer wall of the fluorescent strip is arranged below the fixing strip.

[0020] As a further description of the above technical solution:

[0021] The braid is provided with a carbon fiber layer, the material of the carbon fiber layer is carbon fiber, the outer wall of the carbon fiber layer is connected with a silicone layer, and the material of the silicone layer is silicone.

[0022] As a further description of the above technical solution:

[0023] The outer wall of the silicone layer is fixed to the outer wall of the non-Newtonian fluid layer. The material of the non-Newtonian fluid layer is a polymer-based composite material with excellent deformation performance and impact resistance. The outer wall of the non-Newtonian fluid layer is fixed with a ceramic coating. The material of the ceramic coating is silicon nitride ceramic with high hardness and wear resistance.

[0024] The utility model has the following beneficial effects:

[0025] 1. In the present invention, the overall sealing performance of the device is improved firstly by cooperating with the internal structures of the sealing components. At the same time, the design of the Newtonian fluid layer can quickly harden and protect the internal engine wiring harness when an external force hits the braided tape, thereby solving the problem that the traditional bellows are easily deformed and melted under the influence of high temperature, resulting in poor sealing effect on the wiring harness. It not only provides the necessary protection, but also extends the service life of the device.

[0026] 2. In the present invention, through the cooperation between the fixing component and the elastic band 1 and the elastic band 2, the wiring harnesses of different types of motors can be fixed separately, which is convenient for subsequent differentiation. The fixing effect of the wiring harness is greatly improved by fixing it again through the fixing component, avoiding the failure of the wiring harness caused by looseness during operation, and solving the problem of wiring harness confusion and difficulty in identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of an engine wiring harness external protection device proposed by the utility model;

[0028] Figure 2 This is a side view of an engine wiring harness external protection device proposed by the utility model;

[0029] Figure 3 This is a cross-sectional view of the inner part of the braid of an engine wiring harness external protection device proposed by the present invention.

[0030] Legend:

[0031] 1. Braided tape; 2. Sealing assembly; 201. Fixing tape; 202. Velcro thorn surface; 203. Velcro fleece surface; 204. Sealing ring; 3. Fixing assembly; 301. Male buckle; 302. Female buckle; 303. Limiting tape; 4. Elastic band 1; 5. Elastic band 2; 6. Fluorescent strip; 7. Carbon fiber layer; 8. Silicone layer; 9. Non-Newtonian fluid layer; 10. Ceramic coating. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 - Figure 3 The present invention provides an embodiment of an engine wiring harness external protection device, comprising:

[0034] The braid 1 has a sealing assembly 2 provided on its outer wall for sealing both ends of the braid 1;

[0035] The sealing assembly 2 includes a bilaterally symmetrical fixing belt 201, the ends of which are fixed to the braid 1. A Velcro thorn surface 202 is fixed to the lower surface of the fixing belt 201. Two bilaterally symmetrical sealing rings 204 are fixed inside the braid 1. A bilaterally symmetrical Velcro fleece surface 203 is fixed to the outer wall of the braid 1. The Velcro fleece surface 203 and the Velcro thorn surface 202 are in contact with each other.

[0036] A fixing assembly 3, which is provided on the braid 1 and is used to fix the wire harness inside the braid 1;

[0037] A non-Newtonian fluid layer 9 is provided inside the braid 1;

[0038] Specifically, the sealing component 2 is composed of a left-right symmetrical fixing belt 201, the end of the fixing belt 201 is firmly fixed on the braid 1 to ensure its stability, and the lower surface of the fixing belt 201 is provided with a Velcro thorn surface 202, which fits with the Velcro fur surface 203 on the outer wall of the braid 1 to form a tight closed structure. Two symmetrical sealing rings 204 are provided inside the braid 1 to further enhance the sealing performance and ensure the safety of the wiring harness in various working environments. In addition, the fixing component 3 is arranged on the braid 1 to effectively fix the internal wiring harness to avoid loosening and damage caused by vibration or movement during use. The braid 1 also contains a non-Newtonian fluid layer 9. This material will harden rapidly when impacted by external force, thereby providing additional protection, absorbing impact energy, and ensuring the integrity and safety of the internal wiring harness. The overall design not only takes into account the sealing and fixing functions, but also improves the durability and adaptability of the device through material selection and structural optimization.

[0039] Reference Figure 1 - Figure 3The fixing component 3 includes a male buckle 301, the outer wall of the male buckle 301 is fixed to the upper surface of the braid 1, the outer wall of the braid 1 is fixed with multiple female buckles 302, the inner wall of the female buckle 302 is engaged with the outer wall of the male buckle 301, the fixing component 3 includes a limiting belt 303, both ends of the limiting belt 303 are fixed to one end of the outer wall of the braid 1, and the other end of the braid 1 slides inside the limiting belt 303, and the limiting belt 303 is used to limit the other end of the braid 1. Multiple elastic belts 1-4 are fixed inside the braid 1, and multiple elastic belts 2-5 are fixed inside the braid 1. The elastic belts 1-4 and the elastic belts 2-5 are used for multiple wiring harnesses. For classification, the outer wall of the braid 1 is fixed with a fluorescent strip 6, the outer wall of the fluorescent strip 6 is arranged below the fixing belt 201, the braid 1 is provided with a carbon fiber layer 7, the material of the carbon fiber layer 7 is carbon fiber, the outer wall of the carbon fiber layer 7 is connected with a silicone layer 8, the material of the silicone layer 8 is silicone, the outer wall of the silicone layer 8 is fixed to the outer wall of the non-Newtonian fluid layer 9, the material of the non-Newtonian fluid layer 9 is a polymer-based composite material, which has excellent deformation performance and impact resistance, the outer wall of the non-Newtonian fluid layer 9 is fixed with a ceramic coating 10, the material of the ceramic coating 10 is silicon nitride ceramic, which has high hardness and wear resistance;

[0040] Specifically, the outer wall of the male buckle 301 is securely fixed to the upper surface of the braid 1, ensuring its stability and reliability. Furthermore, multiple female buckles 302 are fixed to the outer wall of the braid 1. The inner walls of these female buckles 302 engage with the outer walls of the male buckles 301, forming a secure connection and ensuring the wiring harness remains secure during use. The securing assembly 3 also includes a retaining strap 303, the two ends of which are fixed to one end of the outer wall of the braid 1, while the other end of the braid 1 is able to slide within the retaining strap 303. This design effectively limits the other end of the braid 1, preventing it from moving unnecessarily during operation, thereby enhancing the stability of the overall structure.

[0041] Multiple elastic bands 1 (4) and 2 (5) are secured within braid 1. These bands are designed to categorize and secure multiple wire harnesses, allowing them to be arranged in an orderly manner, avoiding confusion and facilitating subsequent operation and maintenance. To enhance visibility and safety, a fluorescent strip 6 is secured to the outer wall of braid 1. This strip is positioned beneath the securing band 201, making it easily identifiable even in low-light conditions.

[0042] In addition, the carbon fiber layer 7 inside the braid 1 provides extremely high strength and rigidity, enhancing the durability of the overall structure. The outer wall of the carbon fiber layer 7 is connected to the silicone layer 8, which not only provides good flexibility, but also effectively absorbs external impact and protects the internal wiring harness. The outer wall of the silicone layer 8 is fixed to the outer wall of the non-Newtonian fluid layer 9. The non-Newtonian fluid layer 9 is made of a polymer-based composite material and has excellent deformation properties and impact resistance. It can quickly harden when subjected to external force and provide additional protection. Finally, the outer wall of the non-Newtonian fluid layer 9 is fixed with a ceramic coating 10, which is made of silicon nitride ceramic and has high hardness and wear resistance. It further enhances the overall durability and protection capabilities of the device, allowing it to maintain excellent performance in various harsh environments.

[0043] Working principle: The braid 1 is the main structure, and the outer wall is provided with a sealing component 2, which is fixed to the braid 1 through the left and right symmetrical fixing belts 201 to ensure the sealing of both ends of the braid 1. The Velcro thorn surface 202 fits with the Velcro fur surface 203 to further enhance the sealing effect. The internal sealing ring 204 provides additional sealing support, thereby effectively preventing the external environment from invading the wiring harness. The fixing component 3 fixes the wiring harness inside the braid 1 through a male buckle 301 and multiple female buckles 302. The male buckle 301 is fixed to the upper surface of the braid 1, and the female buckle 302 is engaged with the male buckle 301 to ensure that the wiring harness will not loosen during use. One end of the limiting belt 303 is fixed to the outer wall of the braid 1, and the other end slides It moves inside the braid 1 and plays a limiting role to prevent the other end of the braid 1 from moving, thereby ensuring the stability of the wiring harness. Multiple elastic bands 1 4 and elastic bands 2 5 are arranged inside the braid 1 to classify and fix different types of wiring harnesses, avoid wiring harness confusion, and facilitate subsequent operations. The fluorescent strip 6 is arranged on the outer wall of the braid 1 to provide good visibility and increase safety. The carbon fiber layer 7 provides additional strength and rigidity for the braid 1, and the silicone layer 8 provides flexibility and protection for the braid 1. The non-Newtonian fluid layer 9 will harden quickly when hit by external force to protect the internal wiring harness. The ceramic coating 10 provides high hardness and wear resistance, further enhancing the durability and protection effect of the overall device.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An engine wiring harness external protection device, characterized in that: include: A braid (1) having an outer wall provided with a sealing assembly (2) for sealing both ends of the braid (1); The sealing assembly (2) comprises a bilaterally symmetrical fixing belt (201), the end of the fixing belt (201) is fixed to the braid (1), a Velcro thorn surface (202) is fixed to the lower surface of the fixing belt (201), two bilaterally symmetrical sealing rings (204) are fixed inside the braid (1), and a bilaterally symmetrical Velcro hair surface (203) is fixed to the outer wall of the braid (1), and the Velcro hair surface (203) and the Velcro hair surface (202) are in contact with each other; A fixing assembly (3) is provided on the braid (1) and is used to fix the internal wiring harness of the braid (1); A non-Newtonian fluid layer (9) is provided inside the braid (1).

2. The engine wiring harness external protection device according to claim 1, characterized in that: The fixing assembly (3) comprises a male buckle (301), and the outer wall of the male buckle (301) is fixed to the upper surface of the braid (1).

3. The engine wiring harness external protection device according to claim 1, characterized in that: A plurality of female buckles (302) are fixed to the outer wall of the braid (1), and the inner walls of the female buckles (302) are engaged with the outer walls of the male buckles (301).

4. The engine wiring harness external protection device according to claim 1, characterized in that: The fixing assembly (3) comprises a limiting belt (303), the two ends of the limiting belt (303) being fixed to one end of the outer wall of the braid (1), and the other end of the braid (1) sliding inside the limiting belt (303), and the limiting belt (303) being used to limit the other end of the braid (1).

5. The engine wiring harness external protection device according to claim 1, characterized in that: A plurality of elastic bands (1) are fixed inside the braid (1), and a plurality of elastic bands (5) are fixed inside the braid (1). The elastic bands (4) and (5) are used for classifying multiple harnesses.

6. The engine wiring harness external protection device according to claim 1, characterized in that: A fluorescent strip (6) is fixed to the outer wall of the braided tape (1), and the outer wall of the fluorescent strip (6) is arranged below the fixing tape (201).

7. The engine wiring harness external protection device according to claim 1, characterized in that: The braid (1) is provided with a carbon fiber layer (7), the material of the carbon fiber layer (7) is carbon fiber, the outer wall of the carbon fiber layer (7) is connected to a silicone layer (8), and the material of the silicone layer (8) is silicone.

8. The engine wiring harness external protection device according to claim 7, characterized in that: The outer wall of the silicone layer (8) is fixed to the outer wall of the non-Newtonian fluid layer (9), the material of the non-Newtonian fluid layer (9) is a polymer-based composite material with excellent deformation performance and impact resistance, and the outer wall of the non-Newtonian fluid layer (9) is fixed with a ceramic coating (10), and the material of the ceramic coating (10) is silicon nitride ceramic with high hardness and wear resistance.

Images