Wire harness junction high sealing waterproof structure

Abstract

The utility model relates to the technical field of wiring harness connection, especially relates to a wiring harness junction high sealing waterproof structure, including many electric wire ends, junction, integrated electric wire end, waterproof adhesive tape and heat shrink tube. Many electric wire ends are connected with integrated electric wire end through junction, and the gap of many electric wire ends is wound with waterproof adhesive tape, and the heat shrink tube is sleeved on the outside of many electric wire ends, junction, integrated electric wire end and waterproof adhesive tape and is heat shrink fixed. The utility model cooperates heat shrink tube heat shrink sealing through winding waterproof adhesive tape at the gap of many electric wire ends, effectively prevents the corrosion break and short circuit problem of junction due to the moisture water, significantly improves the working stability and service life of wiring harness in the severe humid environment, and enhances the product performance advantage.

Description

Technical Field

[0001] This utility model relates to the field of wire harness connection technology, specifically to a high-sealing and waterproof structure for wire harness joints. Background Technology

[0002] As a critical connection component in electrical systems, wire harnesses are widely used in automobiles, industrial equipment, and other fields. The sealing and waterproofing performance of their joints directly affects the safety and reliability of the overall system. In humid or dusty environments such as engines and chassis, moisture and impurities can easily penetrate the wire harness joints, leading to short circuits, signal interference, or component corrosion. Therefore, effective sealing and waterproofing of wire harness joints is crucial.

[0003] Existing technologies have significant drawbacks in sealing solutions for wire harness joints: traditional heat shrink tubing sealing processes easily create voids inside the wire joints, failing to meet waterproofing requirements; when using a rubber ring wrapped with heat shrink tubing, the rubber ring is difficult to completely melt after high-temperature heat shrinking, leaving gaps at the ends of multiple wires; when using cross-shaped adhesive strips to fill the gaps between wires, the strips are difficult to fully melt due to the large number of wires, leaving voids, none of which can achieve a complete seal. Utility Model Content

[0004] The purpose of this invention is to provide a highly sealed and waterproof structure for wire harness joints, so as to solve the problems of incomplete sealing and insufficient waterproof performance of wire harness joints in the prior art, and to improve the service life of wire harnesses in harsh environments.

[0005] This utility model discloses a highly sealed and waterproof structure for wire harness joints, comprising multiple wire ends, a joint, an integrated wire end, waterproof tape, and heat shrink tubing. The multiple wire ends are connected to the integrated wire end through the joint, and waterproof tape is wrapped around the gaps between the multiple wire ends. The heat shrink tubing is fitted over the multiple wire ends, the joint, the integrated wire end, and the waterproof tape and fixed by heat shrinking.

[0006] Preferably, the waterproof tape is a non-drying, sheet-like, roll-like, or block-like environmentally friendly sealing material with rubber as the base material.

[0007] Preferably, the waterproof tape is evenly wrapped around the gaps at the ends of the multiple wires.

[0008] Preferably, the waterproof tape meets the emission performance testing standards for automotive materials and components, and has the flexibility and adaptability to remain uncured for life.

[0009] Preferably, the waterproof tape has excellent insulation properties.

[0010] Beneficial effects: This utility model effectively prevents corrosion, breakage, and short circuits at the joints caused by moisture and water ingress by wrapping waterproof tape around the gaps at the ends of multiple wires and using heat shrink tubing for heat shrink sealing. This significantly improves the working stability and service life of the wire harness in harsh and humid environments, enhancing the product's performance advantages. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a traditional heat shrink tubing sealing structure.

[0012] In the attached diagram: 1-Multiple wire ends, 2-Joint point, 3-Integrated wire end, 4-Waterproof tape, 5-Heat shrink tubing. Detailed Implementation

[0013] To make the objectives, technical solutions, and effects of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model. Figure 1 As shown, a high-sealing and waterproof structure for wire harness joints includes:

[0014] The system includes multiple wire ends 1, a connection point 2, an integrated wire end 3, waterproof tape 4, and heat shrink tubing 5. Multiple wire ends 1 are connected to the integrated wire end 3 via connection point 2. Waterproof tape 4 is evenly wrapped around the gaps between the multiple wire ends 1. Heat shrink tubing 5 is then fitted over the multiple wire ends 1, connection point 2, integrated wire end 3, and waterproof tape 4 and secured with heat shrink tubing.

[0015] Multiple wire ends 1 are mechanically and electrically connected to the integrated wire end 3 through the joint point 2. Waterproof tape 4 is wrapped around the gaps of the multiple wire ends 1 to form a pre-seal. After heat shrinking, heat shrink tubing 5 forms an overall protective structure for all components. By filling with waterproof tape 4 and sealing with heat shrink tubing 5, the problem of internal voids in traditional processes is solved, and the waterproof level of joint point 2 is improved.

[0016] like Figure 1 As shown, the waterproof tape 4 is a non-drying sheet, roll, or block environmentally friendly sealing material with rubber as the base material.

[0017] Waterproof tape 4 is made of rubber and comes in non-drying sheets, rolls, or blocks, possessing environmentally friendly properties. It meets emission performance testing standards for automotive materials and components, and its non-curing nature ensures long-term flexibility and conformability, avoiding the high-temperature hardening problems of traditional adhesive rings.

[0018] like Figure 1 As shown, the waterproof tape 4 is evenly wrapped around the gaps at the ends 1 of multiple wires.

[0019] Waterproof tape 4 is evenly wrapped around the gaps between the ends 1 of multiple wires to ensure that the gaps are completely filled. The even wrapping design eliminates local gaps, and when combined with heat shrink tubing 5, it achieves a seamless seal after heat shrinking, solving the void defects caused by incomplete melting of the cross-shaped adhesive strip.

[0020] like Figure 1 As shown, the waterproof tape 4 meets the emission performance test standards for automotive materials and components, and has the flexibility and adaptability to remain uncured for life.

[0021] The waterproof tape 4 meets automotive material emission standards and features lifelong non-curing flexibility and conformability. It can deform with the vibration of the wiring harness in harsh environments, maintaining a tight fit with multiple wire ends 1, and its long-term waterproof performance degradation rate is lower than that of traditional materials.

[0022] like Figure 1 As shown, the waterproof tape 4 has excellent insulation properties.

[0023] Waterproof tape 4 possesses excellent insulation properties, effectively preventing current leakage. It prevents insulation failure at connection point 2 due to humid environments, reduces the risk of short circuits, and enhances the safety of the wiring harness in areas such as the engine and chassis.

[0024] Working principle: Multiple wire ends 1 converge at junction point 2 to form an integrated wire end 3, creating the core conductive path of the wire harness. Waterproof tape 4 is wrapped around the gaps between the multiple wire ends 1. Utilizing the non-drying and flexibility of its rubber substrate, the tape adheres tightly to the surface of the wires and fills the gaps, preventing moisture from seeping in. Heat shrink tubing 5 shrinks under heat, creating uniform pressure on the internal structure. This further compacts the waterproof tape 4, ensuring a seamless seal with the wires. Furthermore, the overall wrapping effect of the heat shrink tubing 5 isolates water, dust, and other impurities from the external environment. Simultaneously, the insulating properties of the heat shrink tubing 5 enhance the overall electrical safety of the structure.

[0025] Compared to traditional direct sealing with heat shrink tubing, this structure provides dual protection through "pre-sealing with waterproof tape + secondary fixing with heat shrink tubing," solving the problem of a single heat shrink tubing being unable to fill the gaps between multiple wires. Compared to adhesive rings or cross-shaped adhesive strips, the waterproof tape 4's lifetime non-curing characteristic can adapt to vibrations and temperature changes during wire harness use, avoiding seal failure due to material hardening and cracking. Water immersion testing verified that the structure using 70mm long heat shrink tubing 5 in conjunction with waterproof tape 4 showed no breakdown alarm after 30 minutes of immersion in water, demonstrating significantly better waterproof performance than solutions using only heat shrink tubing. This is particularly suitable for wire harness connection scenarios in automotive engine compartments, chassis, and other environments where they are frequently exposed to moisture.

[0026] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are similarly included within the protection scope of the present utility model.

Claims

1. A high-sealing and waterproof structure for wire harness joints, comprising multiple wire ends (1), a joint (2), an integrated wire end (3), waterproof tape (4), and heat shrink tubing (5), characterized in that, The multiple wire ends (1) are connected to the integrated wire end (3) through the joint point (2). Waterproof tape (4) is wrapped around the gaps of the multiple wire ends (1). The heat shrink tube (5) is sleeved on the outside of the multiple wire ends (1), the joint point (2), the integrated wire end (3) and the waterproof tape (4) and heat-shrinks it.

2. The high-sealing and waterproof structure for wire harness joints according to claim 1, characterized in that, The waterproof tape (4) is a non-drying sheet, roll, or block environmentally friendly sealing material with rubber as the base material.

3. The high-sealing and waterproof structure for wire harness joints according to claim 1, characterized in that, The waterproof tape (4) is evenly wrapped around the gaps at the ends (1) of multiple wires.

4. The high-sealing and waterproof structure for wire harness joints according to claim 1, characterized in that, The waterproof tape (4) meets the emission performance test standards for automotive materials and parts, and has the flexibility and adaptability that do not harden for life.

5. The high-sealing and waterproof structure for wire harness joints according to claim 1, characterized in that, The waterproof tape (4) has excellent insulation properties.

Images