China Professional Car Wiring Harness Manufacturer

JinHai is a technology manufacturer specializing in designing ceiling wiring harnesses. We adapt to different scenarios and provide a variety of customized solutions to help customers choose the best solution. The customized solutions provided by JinHai are worthy of your choice and trust.

Advantages Of Our Roof Wiring Harnesses

  • Lightweight and Space-Saving: The flat design allows this wiring harness to meet both functional requirements and smooth routing in confined spaces.
  • Mechanical Durability: The flexible design, capable of over 50,000 flex cycles, adapts to various layouts and ensures long-term reliability.
  • Environmental Adaptability: A magnetic fastening system prevents damage to the ceiling, and a wide temperature range ensures enhanced practicality.
  • Strong Safety Protection: Fully flame-retardant materials and a double-locking design for key connectors prevent loosening, ensuring continuous power supply to critical devices such as airbags.

Application Areas for Headliner Wiring Harnesses

Our ceiling wiring harnesses are widely used in:
Lighting systems, intelligent safety assistance systems, and connected car systems for passenger cars, commercial vehicles, and new energy vehicles
Industrial equipment and specialized vehicles

At JinHai, we manufacture wiring harnesses based on the vehicle’s ceiling space layout and individual requirements, ensuring they meet your specific needs.

Roof Wiring Harness  Communication Standard

Ceiling area equipment mostly uses a layered communication architecture, and the protocol selection needs to match the device characteristics:

Device Type Recommended Agreement Rate/Characteristics Application Cases
Sunroof motor/sensor LIN bus 20Kbps, single line low cost Door glass control
In-car entertainment system MOST 150Mbps, optical fiber transmission with anti-interference Audio and video signal transmission
Rain/light sensor CAN-FD 2Mbps, high real-time performance Automatic wiper linked with ECU

 

Contact us immediately to learn how we can meet your cable and harness requirements. Follow us on Youtube .

We Partner With Top Manufacturers and Suppliers

Our purchasing department uses a global strategy to source quality components from special channels.

Quality and Safety, Guaranteed

Adhering to IPC/WHMA-A-620 standards, we ensure reliability and performance in each product.

Key Decision Points in Roof Harness Design

Dimensions Design Goals Technical Solution
Electrical performance Stable power supply and signal fidelity LIN/CAN protocol selection + shielded twisted pair
Mechanical reliability >50,000 bending lifespan Flexible conductor + aerogel buffer layer
Environmental adaptability -40℃~150℃ wide operating temperature range Silicone insulation + temperature compensation algorithm
Safety and Compliance Flame retardant + anti-loosening Cotton flame retardant fabric + CPA connector
Space efficiency Hidden wiring + zero interference Magnetic fixation + flattened wiring harness

Wiring Harness by Applications

NEW GM Roof Wiring Harness Assembly

NEW GM Roof Wiring Harness Assembly

NEW GM Roof Wiring Harness 23228751 Tahoe Suburban Yukon Escalade 2015

NEW GM Roof Wiring Harness 23228751 Tahoe Suburban Yukon Escalade 2015

New Chevrolet Roof Wiring Harness 2016 Silverado 2500HD GMC Sierra 2500HD

New Chevrolet Roof Wiring Harness 2016 Silverado 2500HD GMC Sierra 2500HD

Wire Harness Sews Cabind SPA 47619219 ROOF HARNESS FARMALL PS

Wire Harness Sews Cabind SPA 47619219 ROOF HARNESS FARMALL PS

Product Package

After-sales Instructions

How to handle quality issues or returns?

At JinHai, if there are any quality issues with the goods we ship, we generally handle them in the following three ways:

  • If the product cannot be repaired, JinHai will directly send the customer a good product to replace the defective one;

  • If the product is repairable, JinHai will negotiate with the customer and coordinate with a third party approved by the customer to assist with the repair, and the cost will be borne by JinHai;

  • Under normal order conditions, JinHai will give customers products at a rate of 0.1% of the order amount for later product maintenance or replacement.

Quality begins with details, and service builds trust. The Jinhai after-sales team is dedicated to resolving your issue!

FAQ

什么是线束?和普通电缆有什么区别?

线束是由多根电线/电缆、连接器、端子、保护套管等组件,通过捆扎、包裹等方式组成的集成化电气连接系统。与普通电缆相比:

A.集成度:线束是多线路系统化集成,电缆是单根导体

B.功能:线束实现多点互联和信号分配,电缆仅传输电能/信号

C.定制性:线束需根据应用场景定制设计,电缆多为标准件

D.防护:线束具有整体防护结构(波纹管、胶带等),电缆多为单一绝缘层

一条标准线束包含:

A.导体:多股铜线(常规信号传输应用)或单芯线(高频信号传输应用)

B.绝缘层:PVC/XLPE/硅胶等材质

C.连接器:AMP/TE等品牌,含端子、外壳

D.保护材料:波纹管、胶带、编织网等

E.固定件:扎带、支架、卡扣等

F.标识:色标、标签、条码等

A. 温度等级:

PVC:-40℃~105℃(低压系统)

交联聚乙烯(XLPE):125℃(发动机舱)

硅胶:-60℃~200℃(新能源高压)

B.机械性能:

耐磨:TPE/TPU优于PVC

柔韧性:硅胶最优

C.环保要求:符合ROHS/REACH

成本:PVC<XLPE<硅胶

诊断流程:

A.测量回路电阻(标准值<0.5Ω,使用高精度毫欧表,分辨率:0.1mΩ)

B.进行振动测试(20-2000Hz扫频,红外热像仪)

C.使用微欧计检测接触电阻

重点检查:

A.端子压接区(截面分析)

B.连接器锁止机构

C.线束弯曲半径过小处

A.采用”蛇形布线”(预留10%长度余量)

B.固定点间距≤200mm

C.使用PA66材质支架(耐温120℃)

D.导线:0.3mm²细绞线(比常规线柔韧性提升25%)

E.绝缘层:TPE-S(动态弯曲寿命>50万次)

F.端子压接:实施剖面分析

G.点胶固定:汉高乐泰3265结构胶(剪切强度>15MPa)

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