Flame-retardant electronic connecting wire

By adopting a flat double-row structure and multi-layer flame-retardant material design, the problem of flammability of electronic connection wires at high temperatures is solved, achieving stable operation at high temperatures and mechanical stability.

CN224096443UActive Publication Date: 2026-04-07CHONGQING KUNLING ELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing electronic connection cables are prone to fire under high-temperature conditions, posing significant safety hazards, and lack sufficient functional integration.

Method used

It adopts a flat, double-row symmetrical structure design, with an inner acetate cloth protective layer and a UL94V-0 flame-retardant shell, and an outer flame-retardant protective layer of modified polycarbonate PC/ABS composite material. Combined with gold-plated terminals and UV adhesive layer, it forms a three-layer composite structure to improve heat resistance and mechanical stability.

Benefits of technology

Ensuring stable operation in high-temperature environments improves the flame retardancy and impact resistance of the connecting wires, extends their service life, and enhances mechanical stability and electrical connection reliability.

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Abstract

The utility model relates to a flame-retardant electronic connecting wire, one end of a wire body is provided with a first joint, the other end of the wire body is provided with a second joint, and the whole wire body is thin; a bent section is arranged at a position close to the second joint; six electronic wires are arranged in the wire body, a plurality of Pin terminals are arranged on the first joint, and two adjacent Pin terminals exist; acetate cloth is arranged in the middle of the wire body for wrapping, the second connector is provided with a rubber shell, and a UV rubber layer used for filling and fixing is arranged in the rubber shell. And the first joint is provided with masking paper. As an optimized structure and an improved structure, the packaging box is designed to be thin and can be conveniently packaged.
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Description

Technical Field

[0001] This utility model relates to the field of electronic technology, specifically to a flame-retardant electronic connection wire. Background Technology

[0002] With the sustained and stable economic growth in my country, the market size of electronic wire products has shown a significant expansion trend. Electronic wire, as a general term for internal connection circuits in electrical equipment, is mainly used in low-voltage systems and differs fundamentally from high-voltage cables in terms of technical specifications and application scenarios. Current electronic wires generally adopt a basic structure consisting of a conductive core and an outer insulating sheath: the conductor is made of single or multiple strands of high-purity copper stranded together, while the insulation layer uses different polymer materials such as polyvinyl chloride and polyethylene, depending on the application scenario. It should be particularly noted that existing electronic connection wires suffer from insufficient functional integration, making them prone to causing major fire accidents under high-temperature conditions, posing significant safety hazards. To address this technical bottleneck, our team has developed an electronic connection wire device with excellent heat resistance and has filed an invention patent application for this purpose. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this invention provides a flame-retardant electronic connection wire that can improve upon these shortcomings.

[0004] This utility model relates to a flame-retardant electronic connector. The conductor body has a first connector at one end and a second connector at the other end. The conductor body is thin overall. It has a bent section near the second connector. Six electronic wires are disposed within the conductor body. The first connector has multiple pin terminals, including two adjacent pin terminals. The conductor body is wrapped with acetate cloth in the middle. The second connector has a flame-retardant shell, inside which a UV adhesive layer for filling and fixing is disposed. Masking tape is disposed on the first connector. A flame-retardant protective layer is disposed on the middle surface of the conductor body.

[0005] Furthermore, the UV adhesive layer is UV adhesive 3804 transparent.

[0006] Furthermore, the core of the electronic wire is made of fine copper-plated wire.

[0007] Furthermore, the surface of the electronic lines is provided with a color for marking.

[0008] Furthermore, the acetate cloth is a black die-cut acetate cloth.

[0009] Furthermore, a gold plating layer is provided on the surface of the terminal.

[0010] Furthermore, the masking tape used is die-cut masking tape measuring 7.5*45*0.14mm.

[0011] This utility model, as an optimized structure and an improved structure, is designed to be thin, which facilitates packaging. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the cross-section of an electron line.

[0014] Diagram: 1. Wire body, 2. First connector, 2. Masking tape, 3. Second connector, 4. Housing, 5. Acetate cloth, 6. Pin terminal, bent end. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0016] like Figure 1 , 2 As shown, this utility model discloses a flame-retardant electronic connection wire device, comprising a wire body 1, a first connector 2, and a second connector 3. The wire body adopts a flat, double-row symmetrical structure design, with its width controlled within the range of 12mm ± 0.5mm and its thickness maintained at 0.8mm. One end integrates the first connector, and the other end is connected to the second connector through a 3.5mm radius arc-shaped bending section 7. The wire body integrates six independent electronic wires with a diameter of 0.32mm, arranged at a staggered angle of ±15°. The pin terminal 6 array of the first connector adopts a 2×3 matrix layout, which includes two adjacent terminal structures with a spacing of 0.5mm. In terms of modular configuration, the middle section of the conductor body is covered with a 0.12mm thick black die-cut acetate cloth protective layer 5, with a temperature resistance rating of 180℃ / 72h. The second connector is equipped with a shell 4 that meets the UL94V-0 flame retardant rating and has a built-in 0.25mm thick UV adhesive 3804 transparent curing layer. The joint of the first connector is encapsulated in a stepped manner using 7.5mm×45mm×0.14mm die-cut masking tape 21. The outer surface of the conductor body is entirely covered with a flame-retardant protective layer with a Shore hardness of 85±3. The flame-retardant material in this design is specifically a modified polycarbonate PC / ABS composite material, which has excellent fire resistance and impact resistance, ensuring stable operation in high-temperature environments.

[0017] Preferably, the electronic wire conductor uses a high-precision plated fine copper core of 20AWG specification, with the copper layer thickness controlled within the range of 7.6±0.3μm. The wire surface has a 0.05mm thick color marking layer, which can be quickly identified using the Pantone color chart TPX-19-4052 standard. The conductors are arranged in parallel with a 1.2mm spacing, and an insulation layer structure with a tensile strength of 30N is used.

[0018] Further optimized, the pin terminal surface undergoes a 0.76μm±0.1μm gold plating process, resulting in a contact resistance of ≤5mΩ. Combined with a white plastic housing (model 50459-009H0M0-001), its insertion and removal life reaches 5000 cycles, forming a stable electrical connection structure with a contact pressure of 4.5N. The terminal insertion part features a 0.8mm deep anti-foolproof groove design, ensuring an assembly accuracy of ±0.1mm.

[0019] In terms of structural innovation, the six electronic wires adopt a 2×3 grouping layout. By dividing the wire harness into two functional units with a 2.5mm spacing, and combining this with a 0.15mm thick aramid fiber reinforcement layer, the mechanical stability of the connection system is improved by 42%, effectively solving the technical defect of traditional integrated wire harnesses that become unstable under a 10N lateral force. The design also utilizes a combination of double-sided adhesive and a 3804 UV adhesive transparent layer to form a three-layer composite structure with a peel strength of 3.2N / mm². 2 This improves the seismic resistance of the joint to ISO 16750-3 Level C under operating conditions of -40℃ to 125℃, and extends the durability period to 12,000 hours.

Claims

1. A flame-retardant electronic connection wire, comprising a conductor body, characterized in that: The conductor body has a first connector at one end and a second connector at the other end. The conductor body is thin overall. It has a bent section near the second connector. The conductor body contains 6 electronic wires. The first connector has multiple pin terminals, including two adjacent pin terminals. The conductor body is wrapped with acetate cloth in the middle. The second connector has a flame-retardant shell with a UV adhesive layer inside for filling and fixing. The first connector is covered with masking tape. A flame-retardant protective layer is provided on the middle surface of the conductor body.

2. The flame-retardant electronic connection wire according to claim 1, characterized in that: The UV adhesive layer is UV adhesive 3804 transparent.

3. The flame-retardant electronic connection wire according to claim 1, characterized in that: The core of the electronic wire is made of fine copper-plated wire, and the outer layer of the fine copper-plated wire is wrapped with a polytetrafluoroethylene insulation layer to enhance heat resistance; the flame-retardant protective layer is made of environmentally friendly materials.

4. The flame-retardant electronic connection wire according to claim 1, characterized in that: The surface of the electron wire is set with colors for marking.

5. A flame-retardant electronic connection wire according to claim 1, characterized in that: The acetate cloth is a black die-cut acetate cloth.

6. A flame-retardant electronic connection wire according to claim 1, characterized in that: The terminal surface is plated with a gold layer.

7. A flame-retardant electronic connection wire according to claim 1, characterized in that: The masking tape used is die-cut masking tape measuring 7.5*45*0.14mm.