Ultra-thin coaxial line and ultra-flexible electronic line mixed waterproof wire harness

By adopting a three-level waterproof system in the waterproof wiring harness, the problem of insufficient waterproof reliability in the torsional part is solved, stable operation in complex environments is achieved, and the waterproof performance and stability of the wiring harness are improved.

CN120637952APending Publication Date: 2025-09-12SHENZHEN LIANCHUANG TECH CO LTD
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Patent Information

Application Number
CN202511131203.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

Existing waterproof wiring harnesses have insufficient waterproof reliability at the torsion part, are prone to loosening under vibration conditions, and lack a systematic waterproof system.

Method used

A three-level waterproof system is adopted, including filling the wire groove with UV glue, covering the terminal with acetate cloth, and covering the torsion part with nano tape and rubber sleeve, forming a multi-level waterproof structure.

Benefits of technology

The waterproof performance and stability of the wiring harness are improved, enabling it to work reliably in complex and humid environments, reducing the risk of water seepage through gaps in the torsion section and improving the long-term reliability of the device.

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Abstract

The invention provides a superfine coaxial line and super-flexible electronic line mixed waterproof wire harness, which belongs to the technical field of wire harnesses, and comprises a bracket, two groups of wire clamping grooves are formed in the bracket, wire harnesses are clamped in the two groups of wire clamping grooves, the wire clamping grooves are filled with UV glue, and the UV glue coats the surfaces of the wire harnesses; two ends of the wire harness are provided with terminals, and the terminals are coated with first protective layers; an FPC board is clamped on the support, a plugboard is arranged on one side of the support, and the FPC board is electrically connected with the plugboard through a coaxial harness; the coaxial wire harness and the wire harness intersect to form a torsion part, the torsion part is coated with a protective sleeve, the two ends of the protective sleeve are coated with second protective layers, and the protective sleeve is sleeved with a rubber sleeve; and the wire clamping groove, the torsion part and the sealing structure at the terminal form a three-stage waterproof system. According to the device, through the arrangement of the three-stage waterproof system, the wire harness can resist moisture invasion, and the waterproof performance of the wire harness is improved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of wire harnesses, and more specifically, relates to a waterproof hybrid wire harness of ultra-thin coaxial lines and ultra-flexible electronic lines. Background Art

[0002] Nowadays, electronic devices are widely used. Many electronic products involve the fields of internal circuit connection and signal transmission, and often need to use wiring harnesses for power transmission and signal transmission. For example, in some outdoor electronic equipment, underwater monitoring instruments or electronic devices with high requirements for waterproof performance, in order to ensure that the equipment can operate stably in a humid or even water-stained environment, and to avoid problems such as short circuits and signal interference caused by water intrusion into the circuit, waterproof wiring harnesses are often used for internal circuit connections of the equipment. In this case, waterproof wiring harnesses are needed to protect the circuits and facilitate the reliable operation of electronic equipment in various complex and humid environments.

[0003] There is also a waterproof and torsion-resistant connection harness in the prior art. For example, a Chinese utility model with patent number CN202420206706.2 discloses a waterproof and torsion-resistant connection harness, which includes a plurality of wires, a coaxial cable and a bracket; the wires are individually passed through the through holes of the bracket in an intermittent manner, and the coaxial cable is electrically connected to the FPC board in the slot of the bracket; the wires and the coaxial cable are fixed and sealed on the bracket with UV glue, the torsion part of the coaxial cable and the wire is wrapped with conductive tape, and terminals are installed at both ends of the wire.

[0004] This technical solution, through UV glue fixation and tape wrapping, partially addresses the issues of moisture intrusion and twisting damage to the rotating camera. However, this solution lacks a systematic waterproofing system, relying solely on conductive tape for protection of the twisting portion. This lacks waterproofing reliability, and the mounting structure for the bracket and wiring harness is susceptible to loosening under vibration. Furthermore, this solution lacks a sealing cover for further protection, and acetate tape is not used to protect the wiring beyond the terminals at each end. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a hybrid waterproof wiring harness of ultra-fine coaxial line and ultra-flexible electronic line to solve the technical problem in the prior art that the connection parts of traditional waterproof wiring harnesses are prone to water seepage and cause equipment failure.

[0006] The purpose and effect of the present invention's hybrid waterproof wiring harness of ultra-fine coaxial line and ultra-flexible electronic line are achieved by the following specific technical means: A hybrid waterproof wiring harness of ultra-fine coaxial cables and ultra-flexible electronic wires, comprising a bracket, the bracket being provided with two groups of wire clamping grooves, both groups of wire clamping grooves being provided with wire harnesses, the wire clamping grooves being filled with UV glue, and the UV glue coating the surface of the wire harness; terminals being provided at both ends of the wire harness, the outside of the terminals being coated with a first protective layer; an FPC board being provided on the bracket, a plug-in plate being provided on one side of the bracket, the FPC board being electrically connected to the plug-in plate via a coaxial harness; the coaxial harness and the wire harness intersecting to form a torsion portion, the torsion portion being coated with a protective sleeve, both ends of the protective sleeve being coated with a second protective layer, and a rubber sleeve being coated on the protective sleeve; the sealing structure of the wire clamping grooves, the torsion portion, and the terminals forming a three-level waterproof system.

[0007] In a preferred embodiment, a slot is provided on one side of the bracket, and the FPC board is mounted in the slot.

[0008] In a preferred embodiment, both groups of the cable clamping grooves are filled with UV glue.

[0009] In a preferred embodiment, the coaxial harness and the electrical wire harness are both covered with a third protective layer.

[0010] In a preferred embodiment, the protective sleeve is a nano-adhesive tape, and the rubber sleeve is made of rubber.

[0011] In a preferred embodiment, the first protective layer, the second protective layer and the third protective layer are all made of acetate cloth.

[0012] In a preferred embodiment, buckles are provided on both sides of the rubber sleeve and the bracket.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes a three-stage waterproofing system to protect the wiring harness from moisture intrusion, enhancing its waterproof performance. The device fills the cable trough with UV glue, which coats the surface of the wiring harness, creating a waterproof barrier at the trough and enhancing the device's protection in complex, humid environments. After curing, the UV glue adheres to the wiring harness, preventing moisture from seeping through the gap between the trough and the harness.

[0014] 2. When using the wiring harness, the device can enhance the waterproof performance of the terminals by wrapping the terminals with acetate cloth. This allows the wiring harness to better resist vibration, bending, and moisture at the connection point, improving the overall stability of the device. Then, by wrapping a protective sleeve made of nano-tape at the torsion section formed by the intersection of the coaxial harness and the wire harness, and then covering the protective sleeve with a rubber sleeve, the device can further enhance the waterproof effect of the torsion section, reduce the risk of water seepage due to gaps in the torsion section, provide more reliable waterproof protection for the device, and improve the reliability of the device during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention after assembly; Figure 2 It is a schematic structural diagram of the protective cover of the present invention; Figure 3 It is a schematic structural diagram of the stent of the present invention; Figure 4 It is a structural schematic diagram of the rubber sleeve of the present invention.

[0016] In the figure, the corresponding relationship between component names and reference numerals is as follows: 11. Bracket; 12. Wire duct; 13. Wire harness; 14. Terminal; 15. First protective layer; 16. Second protective layer; 17. Third protective layer; 16. FPC board; 17. Insert board; 18. Coaxial cable harness; 19. Protective cover; 21. Rubber cover; 22. Slot; 23. Buckle. DETAILED DESCRIPTION

[0017] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but are not intended to limit the scope of protection of the present invention.

[0018] Example: like Figures 1 to 4 As shown, the present invention provides a hybrid waterproof wiring harness of ultra-fine coaxial line and ultra-flexible electronic line, including a bracket 11, on which two groups of wire clamping grooves 12 are opened, and both groups of wire clamping grooves 12 are clamped with wire harnesses 13, and the wire clamping grooves 12 are filled with UV glue, and the UV glue covers the surface of the wiring harness.

[0019] Specifically, it can achieve positioning and preliminary waterproof protection for the wiring harness, improving the structural stability and basic waterproof capability of the device. For example, during the use of outdoor electronic equipment, it can prevent the wiring harness 13 from shaking freely. At the same time, UV glue fills the gaps, preventing external moisture from easily contacting the wiring harness, ensuring stable operation of the circuit.

[0020] Terminals 14 are provided at both ends of the wire harness 13, and the terminals 14 are covered with a first protective layer 15. An FPC board 16 is fixed on the bracket 11, and a plug board 17 is provided on one side of the bracket 11. The FPC board 16 is electrically connected to the plug board 17 through a coaxial harness 18.

[0021] Specifically, the first protective layer 15 at the terminals 14 prevents moisture from entering the connection point, ensuring stable current transmission. The coaxial cable 18 transmits signals, ensuring proper functioning of the device.

[0022] The coaxial harness 18 and the wire harness 13 intersect to form a torsion portion, which is covered with a protective sleeve 19 . Both ends of the protective sleeve 19 are covered with a second protective layer 16 , and a rubber sleeve 21 is provided on the protective sleeve 19 .

[0023] Specifically, this provides enhanced protection for the torsion zone, a vulnerable and water-permeable area, enhancing the device's adaptability in complex environments. For example, when the wiring harness is twisted due to different routings, the protective sleeve 19 and rubber sleeve 21 prevent water from entering the gaps created by the twisting, ensuring the safety of the internal wiring.

[0024] The sealing structures at the wire clamping groove 12, the torsion portion and the terminal 14 form a three-level waterproof system.

[0025] Specifically, multi-layered waterproof protection is implemented to enhance the device's overall waterproof performance. For example, in environments with high humidity or occasional water damage, even if a minor seal failure occurs at one point, the other two levels of waterproofing will still block moisture, preventing the wiring harness from becoming damp and causing malfunctions.

[0026] A slot 22 is defined on one side of the bracket 11 , and the FPC board 16 is received in the slot 22 .

[0027] Specifically, the positioning and installation of the FPC board 16 are achieved, improving the compactness and stability of the device structure. For example, in the case of limited space inside an electronic device, this arrangement can ensure that the FPC board 16 does not shift under conditions such as vibration, ensuring the stability of the connection with other components.

[0028] The two sets of cable slots 12 are filled with UV glue.

[0029] Specifically, the sealing performance of the wire clamping groove 12 is further enhanced, thereby improving the waterproof effect of the wire clamping groove 12 of the device.

[0030] The coaxial harness 18 and the electrical harness 13 are both covered with a third protective layer 17 .

[0031] Specifically, the third protective layer 17 provides additional protection for the entire wiring harness, enhancing the device's ability to protect the wiring harness. For example, when exposed to dust, oil, and other erosion, the third protective layer 17 prevents these impurities from adhering to the wiring harness surface, which could indirectly affect the waterproof performance or cause wiring failure.

[0032] The protective sleeve 19 is made of nano-tape, and the rubber sleeve 21 is made of rubber.

[0033] This achieves better fit and waterproof protection for the torsion portion, improving the effectiveness of the torsion portion protection of the device. For example, in torsion portions with different degrees of curvature, the nano-tape can fit the torsion portion, and the rubber sleeve 21 can adapt to the deformation and maintain a seal to prevent moisture from penetrating.

[0034] The first protective layer 15 , the second protective layer 16 and the third protective layer 17 are all made of acetate cloth.

[0035] Specifically, the uniformity of protective materials and the consistency of their performance have been achieved, improving the coordination and stability of the device's overall protection. For example, acetate cloth offers excellent insulation, waterproofing, and abrasion resistance. Using the same material across all parts ensures a stable overall protective effect.

[0036] Buckles 23 are provided on both sides of the rubber sleeve 21 and the bracket 11 .

[0037] Specifically, the connection and fixation between the rubber sleeve 21 and the bracket 11 are achieved, improving the reliability and maintainability of the overall structure of the device. For example, when the rubber sleeve 21 needs to be inspected or replaced, the buckle 23 can be quickly removed and installed. At the same time, the buckle 23 connection ensures that the rubber sleeve 21 will not fall off easily during use.

[0038] The specific usage and function of this embodiment are as follows: During electronic device assembly, the wiring harness 13 is inserted into the wire slot 12 of the bracket 11. The UV adhesive filling the wire slot 12 not only secures the wiring harness 13 but also provides preliminary waterproofing. Terminals 14 at each end of the wiring harness 13 connect to device components, and the acetate cloth surrounding them prevents moisture from penetrating through the connection points. The FPC board 16 is inserted into the slot 22 of the bracket 11 and electrically connected to the plug-in board 17 via the coaxial harness 18, enabling signal and power transmission. The torsion zone formed by the intersection of the coaxial harness 18 and the wiring harness 13 is first covered with a protective sheath 19 made of nano-tape, then a second protective layer 16 is wrapped at each end, and a rubber sleeve 21 is placed on the outermost layer to further waterproof this vulnerable area. The three-level waterproofing system at the wire slot 12, torsion zone, and terminals 14 provides comprehensive protection against moisture. The UV adhesive within the wire slot 12 further strengthens the seal. A third protective layer 17 on the coaxial harness 18 and wiring harness 13 provides additional protection. The buckles 23 on both sides of the rubber sleeve 21 and the bracket 11 facilitate installation and removal of the rubber sleeve 21 and facilitate maintenance. The overall wiring harness ensures stable operation in humid environments and ensures the normal operation of electronic equipment.

[0039] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A hybrid waterproof wiring harness of an ultra-fine coaxial line and an ultra-flexible electronic line, comprising a bracket (11), characterized in that: The bracket (11) is provided with two groups of wire clamping grooves (12), and the two groups of wire clamping grooves (12) are both provided with wire bundles (13), and the wire clamping grooves (12) are filled with UV glue, and the UV glue covers the surface of the wire bundle; terminals (14) are provided at both ends of the wire bundle (13), and the terminals (14) are externally covered with a first protective layer (15); an FPC board (18) is provided on the bracket (11), and a plug board (19) is provided on one side of the bracket (11), and the FPC board (18) is electrically connected to the plug board (19) through a coaxial harness (21); the coaxial harness (23) and the wire bundle (13) intersect to form a torsion portion, and the torsion portion is covered with a protective sleeve (22), and both ends of the protective sleeve (22) are covered with a second protective layer (16), and a rubber sleeve (23) is provided on the protective sleeve (22); the sealing structure at the wire clamping groove (12), the torsion portion, and the terminal (14) forms a three-level waterproof system.

2. The waterproof hybrid wiring harness of ultra-fine coaxial line and ultra-flexible electronic line according to claim 1, characterized in that: A slot (24) is provided on one side of the bracket (11), and the FPC board (18) is clamped in the slot (24).

3. The waterproof hybrid wiring harness of ultra-fine coaxial line and ultra-flexible electronic line according to claim 2, characterized in that: Both groups of the wire clamping slots (12) are filled with UV glue.

4. The waterproof hybrid wiring harness of ultra-fine coaxial line and ultra-flexible electronic line according to claim 3, characterized in that: The coaxial harness (21) and the electrical harness (13) are both covered with a third protective layer (17).

5. The waterproof hybrid wiring harness of ultra-fine coaxial line and ultra-flexible electronic line according to claim 4, characterized in that: The protective sleeve (22) is made of nano-adhesive tape, and the rubber sleeve (23) is made of rubber.

6. The waterproof hybrid wiring harness of ultra-fine coaxial line and ultra-flexible electronic line according to claim 5, characterized in that: The first protective layer (15), the second protective layer (16) and the third protective layer (17) are all made of acetate cloth.

7. The waterproof hybrid wiring harness of ultra-fine coaxial line and ultra-flexible electronic line according to claim 1, characterized in that: Buckles (25) are provided on both sides of the rubber sleeve (21) and the bracket (11).

Citation Information

Patent Citations

  • New energy automobile inverter wire harness

    CN116260006A

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    CN201528085U

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    CN219202820U

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    CN221651852U