Trunk and branch layout主干与分支
Locate trunk and branch datums from equipment fixing points. Allow room for mating, bends and servicing so branches do not transfer installation loads to contacts.以设备固定点确定主干和各支路的尺寸基准，预留插拔、弯曲和维护空间，避免支路把拉力传递到端子。
Low-Voltage New-Energy Harness新能源低压线束
VCU Rear Low-Voltage Branch HarnessVCU后部低压分支线束
VCU Rear Low-Voltage Branch Harness can be configured around equipment interfaces and routing. Low-voltage new-energy harnesses serve auxiliary controllers, sensors, pumps, fans, lighting, communication or diagnostic functions in electric or new-energy equipment. This category does not mean high-voltage traction or battery power cabling.VCU后部低压分支线束可围绕设备接口与安装路径进行配置。新能源低压线束用于电动或新能源设备中的辅助控制器、传感器、泵、风扇、照明、通信或诊断功能。本类别不等同于高压动力或电池主回路线束。
- Interface and circuit review接口与回路对应审核
- Length and installation configuration线长与安装结构定制
- Manufacture from approved sample样品确认后组织制造
CONSTRUCTION结构解析
Connection structure and design details连接结构与设计要点
Use the vcu rear low-voltage branch harness form as a starting point and confirm these design points against drawings and the actual equipment.以VCU后部低压分支线束的结构形式为起点，结合图纸和实际设备确认以下设计要点。
Interface and function review接口与功能确认
Define low-voltage auxiliary and high-voltage power harnesses separately低压辅助线束与高压动力线束分开定义
Installation and acceptance安装与验收
Verify sensing order, reference ground and fusing采样线序、参考地与熔断要求必须核对
CONFIGURATION结构与选配
Construction & customization options结构与定制配置
The table describes the construction and available configuration choices. Materials, dimensions, circuits and inspection requirements are agreed for each project.以下说明展示结构与可配置内容。具体材料、尺寸、电路和检验要求按项目确认。
| System low-voltage boundary and voltage range系统低压边界与电压范围 | Separate auxiliary low-voltage and high-voltage power boundaries.先区分辅助低压与高压动力系统的边界。 |
|---|---|
| BMS sensing, power and control pinoutBMS采样、电源与控制针脚图 | Define BMS sensing, supply and control pins separately.BMS采样、供电与控制针位分别定义。 |
| Wire size, protective devices and branch loads线径、保护器件与支路负载 | Select conductors from trunk/branch loads and protective devices together.主干、支路负载和保护器件共同决定导体配置。 |
| Temperature, vibration and isolation near the battery电池附近温度、振动及隔离要求 | Route for heat, vibration and isolation needs near the battery.按电池附近的热、振动及隔离需求布线。 |
| Circuit and revision reference电路与版本依据 | Provide the platform and controller, nominal and maximum voltage, current by circuit, communication type, pin map, connector references, installation zone and applicable customer specification.需要提供平台与控制器、标称和最高电压、各回路电流、通信类型、针脚图、接口资料、安装区域和客户规范；高压需求必须另行进行能力与合规审核。 |
| Sample and manufacturing configuration样品与制造配置 | Engineering confirms the low-voltage boundary, interfaces and inspection plan before sampling. The approved sample, pin table, labels and agreed electrical checks become the controlled reference for production.打样前确认低压范围、接口和检验计划；获批样品、针脚表、标签和约定的电气检查项目作为受控量产依据。 |
APPLICATIONS连接的应用
Application directions应用方向
These are connection directions for project discussion. Suitability depends on interfaces, circuits, installation conditions and project validation; configuration can be adapted to the equipment.以下为可讨论的连接方向。实际适用性取决于接口、电路、安装环境和项目验证，可按设备需求调整。
Electric and electrified mobile equipment电动与电气化移动设备
Supports auxiliary controls, sensing, lighting, communication and service functions outside the high-voltage traction circuit. Separate auxiliary low-voltage and high-voltage power boundaries.支持高压牵引回路之外的辅助控制、传感、照明、通信与服务功能。选配时，先区分辅助低压与高压动力系统的边界。
Charging equipment auxiliaries充电设备辅助系统
Connects low-voltage controllers, indicators, locks, fans, sensors and communication modules in charging cabinets or interfaces. Define BMS sensing, supply and control pins separately.连接充电柜或接口中的低压控制器、指示、锁止、风扇、传感器与通信模块。选配时，BMS采样、供电与控制针位分别定义。
Battery and energy-storage monitoring电池与储能监测
Supports low-voltage sensing, BMS communication, service and auxiliary-control branches while the project defines voltage and isolation boundaries. Select conductors from trunk/branch loads and protective devices together.支持低压传感、BMS通信、服务与辅助控制分支，电压和隔离边界由项目明确。选配时，主干、支路负载和保护器件共同决定导体配置。
Photovoltaic and power-conversion controls光伏与电能转换控制
Links monitoring boards, fans, indicators, sensors and service interfaces around inverters and control enclosures, excluding their high-energy power paths. Route for heat, vibration and isolation needs near the battery.连接逆变器与控制外壳周围的监测板、风扇、指示、传感与服务接口，不包括其高能量动力路径。选配时，按电池附近的热、振动及隔离需求布线。
New-energy industrial equipment新能源工业设备
Connects auxiliary power distribution, controls, interlocks, pumps and monitoring in electrified production and process equipment. Separate auxiliary low-voltage and high-voltage power boundaries.连接电气化生产与工艺设备中的辅助配电、控制、互锁、泵与监测。选配时，先区分辅助低压与高压动力系统的边界。
Thermal-management and environmental systems热管理与环境系统
Routes sensors, pumps, valves and fans for defined cooling, heating and environmental-control functions. Define BMS sensing, supply and control pins separately.为明确的冷却、加热与环境控制功能连接传感器、泵、阀与风扇。选配时，BMS采样、供电与控制针位分别定义。
ENGINEERING & PRODUCTION工程与制造
Adapt the connection to your equipment.围绕设备，调整连接细节。
Touched by me, better it’ll beTouched by me, better it’ll be
Custom wire harness manufacturing in China中国工厂 · 定制线束制造
Our China factory supports low-voltage new-energy harness projects through custom wire harness manufacturing and OEM/ODM development. Interface, circuit and installation data guide material selection, sample builds and manufacturing-document approval before repeat production.Super Smile-Tech 中国工厂围绕新能源低压线束的项目需求提供定制线束制造与 OEM/ODM 支持。我们从接口、电路与安装资料开始，协同物料选配、样品制作和制造文件确认，再按批准要求组织重复生产。
Separate low-voltage scope from high-voltage scope区分低压与高压范围
Nominal and maximum voltage, isolation boundaries, interfaces and applicable customer rules are confirmed before quotation. High-voltage traction requests enter a separate capability review.报价前确认标称与最高电压、隔离边界、接口和适用客户规则；高压牵引需求进入独立能力审核。
Develop from system architecture and pin data依据系统架构与针脚资料开发
Controller I/O, power distribution, fuse strategy, loads, communication buses, grounding and service interfaces are converted into a controlled harness drawing.把控制器I/O、配电、保险策略、负载、通信总线、接地与服务接口转化为受控线束图纸。
Coordinate power and sensitive signals协调供电与敏感信号
Branch geometry, pair structure, separation, shield termination and reference grounds are arranged so switching circuits do not unnecessarily disturb sensing or communication.通过分支几何、线对结构、隔离、屏蔽端接与参考地布置，减少开关回路对传感与通信的不必要干扰。
PRODUCT QUESTIONS产品问答
Product & customization questions产品与定制常见问题
Does this category include high-voltage battery or traction cables?这个小类包括高压电池或牵引电缆吗？
No. It covers project-defined low-voltage auxiliary power, control, sensing, communication and diagnostic circuits. High-voltage requests require separate capability and compliance review.不包括。本小类覆盖项目定义的低压辅助供电、控制、传感、通信与诊断回路，高压需求需要独立能力与合规审核。
How is the low-voltage boundary defined?低压边界怎样定义？
The customer provides nominal and maximum voltage, platform rules, circuit list and isolation boundaries. The label low voltage is not assumed from connector size or application name.由客户提供标称与最高电压、平台规则、回路与隔离边界，不能根据接口大小或应用名称自行判断。
Can power and communication circuits share one harness?供电与通信回路可以放在同一线束里吗？
They may when current paths, separation, pair structure, shielding, grounding and connector capacity are reviewed for the actual controller architecture.可以，但必须结合实际控制器架构审核电流路径、隔离、线对结构、屏蔽、接地与接口容量。
Start with your interface and installation requirements从您的接口与安装需求开始
Share mating interfaces, a circuit table, target lengths or a sample for the vcu rear low-voltage branch harness. We can use them to review configuration and sample requirements.提供VCU后部低压分支线束的对插接口、回路表、目标长度或参考样品，我们据此梳理选配与样品确认事项。