Senior Mechanical Design & Simulation Engineer

岗位概述 | Position Summary

负责新能源汽车电驱逆变器（Traction Inverter）、车载充电机（OBC）以及高压/低压DC/DC转换器产品的结构设计、热设计、CAE仿真分析及先进技术开发工作。 该岗位以结构设计和仿真分析为核心能力，覆盖产品从概念设计、详细设计、仿真分析到验证优化的完整开发过程。 This role is responsible for mechanical design, thermal design, CAE simulation and advanced technology development for traction inverters, onboard chargers (OBC), and HV/LV DC/DC converters. The role focuses on mechanical design and simulation analysis across the full product development process, from concept design, detailed design, simulation, to validation-driven optimization.

主要职责 | Key Responsibilities

一、结构设计（50%-60%） | Mechanical Design (50%-60%)

1. 产品结构开发 | Product Mechanical Design

• 负责Traction Inverter、OBC和HV/LV DC/DC产品的总体结构方案设计和详细结构设计。

Develop overall mechanical concepts and detailed mechanical designs for traction inverter, OBC, and HV/LV DC/DC products.

• 完成铝压铸壳体、钣金件、注塑件、端盖、支架及安装结构设计。

Design aluminum die-cast housings, sheet-metal parts, plastic parts, covers, brackets, and mounting structures.

• 负责功率模块安装结构、电容及磁性器件固定结构、母排支撑结构、高压连接器集成和线束接口设计。

Design power module mounting structures, capacitor and magnetic component fixation, busbar support structures, HV connector integration, and harness interfaces.

• 负责密封结构、防护设计、呼吸阀布置及IP67/IP69K相关结构方案。

Develop sealing structures, protection design, venting arrangement, and IP67/IP69K-related mechanical solutions.

• 负责冷却板、水道、液冷接口和热设计相关结构开发。

Develop cooling plates, water jackets, liquid cooling interfaces, and thermal-design-related mechanical structures.

2. CAD设计、图纸和工程化落地 | CAD Design, Drawings & Engineering Implementation

• 熟练使用CATIA、Siemens NX或Creo进行3D建模、装配设计和2D工程图输出。

Use CATIA, Siemens NX, or Creo for 3D modeling, assembly design, and 2D engineering drawings.

• 完成GD&T定义、公差分析、装配间隙检查和关键尺寸链分析。

Define GD&T, perform tolerance analysis, assembly clearance checks, and critical dimension chain analysis.

• 开展DFM/DFA分析，支持压铸、机加工、注塑、钣金、装配和密封工艺可制造性评审。

Conduct DFM/DFA analysis to support manufacturability reviews for die casting, machining, plastic injection, sheet metal, assembly, and sealing processes.

• 支持样机装配、设计评审、DFMEA、DV/PV验证中的结构相关问题分析和设计闭环。

Support prototype build, design review, DFMEA, and structural issue analysis and design closure during DV/PV validation.

3. 电驱与车载电源产品结构经验 | Mechanical Experience in eDrive and On-board Power Products

• 具备Inverter、OBC、DC/DC中至少两个领域的结构开发经验，能够理解功率模块、母排、电容、磁件、连接器和冷却系统的结构边界。

Have mechanical development experience in at least two of inverter, OBC, and DC/DC, with understanding of structural interfaces for power modules, busbars, capacitors, magnetics, connectors, and cooling systems.

• 参与高功率密度、高压平台或多合一电驱产品开发，关注空间布置、装配可行性、重量优化、可维护性和可靠性。

Participate in high-power-density, high-voltage, or multi-in-one eDrive product development, focusing on packaging layout, assembly feasibility, weight optimization, serviceability, and reliability.

4. 先进技术预研与创新 | Advanced Technology Development & Innovation

• 参与高频化、高压化、SiC/GaN、Embedded Power Module、集成式功率电子架构等先进技术预研。

Participate in advanced technology development for high-frequency operation, high-voltage platforms, SiC/GaN devices, embedded power modules, and integrated power electronics architectures.

• 输出技术方案、仿真结论、设计评审材料、技术路线图和专利/创新成果。

Deliver technical proposals, simulation conclusions, design review materials, technology roadmaps, and patent/innovation outputs.

二、CAE仿真分析（40%-50%） | CAE Simulation (40%-50%)

1. 结构强度与可靠性仿真 | Structural Strength & Reliability Simulation

• 独立开展静强度分析、模态分析、随机振动、机械冲击和疲劳分析。

Independently perform static strength analysis, modal analysis, random vibration, mechanical shock, and fatigue analysis.

• 支持壳体、安装点、支架、螺栓连接、功率模块安装结构和关键承载部件的优化。

Support optimization of housing, mounting points, brackets, bolted joints, power module mounting structures, and key load-bearing components.

• 根据DV/PV和可靠性要求识别结构风险，并提出设计改进方案。

Identify structural risks based on DV/PV and reliability requirements and propose design improvements.

2. 热分析与CFD仿真 | Thermal Analysis & CFD Simulation

• 开展稳态热分析、瞬态热分析、热阻路径分析、热点预测和热边界评估。

Perform steady-state thermal analysis, transient thermal analysis, thermal resistance path analysis, hotspot prediction, and thermal boundary evaluation.

• 开展CFD仿真、流量分配分析、压降评估和冷却板/水道优化。

Perform CFD simulation, flow distribution analysis, pressure drop evaluation, and cooling plate/water jacket optimization.

• 支持功率模块、母排、电容、磁性器件和壳体之间的热路径优化。

Support thermal path optimization among power modules, busbars, capacitors, magnetic components, and housings.

3. 多物理场与仿真工具 | Multi-Physics Analysis & Simulation Tools

• 开展热-结构耦合、热膨胀、热机械可靠性和关键部件应力分析。

Perform thermal-structural coupling, thermal expansion, thermo-mechanical reliability, and key component stress analysis.

• 熟练使用ANSYS Mechanical、ANSYS Icepak、Fluent、Star-CCM+、Abaqus等工具中的一种或多种。

Use one or more simulation tools such as ANSYS Mechanical, ANSYS Icepak, Fluent, Star-CCM+, and Abaqus.

• 能够将仿真结论转化为可执行的结构设计优化建议。

Translate simulation results into actionable mechanical design optimization recommendations.

任职资格 | Qualifications

教育背景 | Education

• 机械工程、车辆工程、机电一体化、热能工程或相关专业本科及以上学历，硕士优先。

Bachelor’s degree or above in mechanical engineering, vehicle engineering, mechatronics, thermal engineering, or related disciplines; master’s degree preferred.

工作经验 | Experience

• 8年以上新能源汽车或汽车电子相关结构设计/仿真开发经验。

Minimum 8 years of experience in mechanical design and/or simulation development for NEV or automotive electronics products.

• 具备Traction Inverter、OBC、HV/LV DC/DC中至少两个领域的产品开发经验。

Development experience in at least two of traction inverter, OBC, and HV/LV DC/DC products.

• 具备从概念设计、详细设计、样机验证到量产导入的完整项目经验者优先。

Full-cycle project experience from concept design, detailed design, prototype validation, to production launch is preferred.

• 具备800V平台、多合一电驱、高功率密度或液冷产品经验者优先。

Experience with 800V platforms, multi-in-one eDrive systems, high-power-density products, or liquid-cooled products is preferred.

必备技术能力 | Required Technical Skills

• 扎实的结构设计能力，包括铝压铸、钣金、塑料件、密封、连接器和冷却结构设计。

Solid mechanical design capability covering aluminum die casting, sheet metal, plastic parts, sealing, connectors, and cooling structures.

• 熟练掌握3D CAD、2D图纸、GD&T、公差分析和DFM/DFA。

Proficiency in 3D CAD, 2D drawings, GD&T, tolerance analysis, and DFM/DFA.

• 具备独立结构仿真能力，包括静强度、模态、振动、冲击和疲劳分析。

Independent structural simulation capability, including static strength, modal, vibration, shock, and fatigue analysis.

• 具备热分析或CFD仿真能力，能够支持冷却结构和热路径设计优化。

Thermal analysis or CFD capability to support cooling structure and thermal path optimization.

• 理解高压安全、绝缘、爬电/电气间隙、防护等级和汽车可靠性要求对结构设计的影响。

Understanding of mechanical design impacts from HV safety, insulation, creepage/clearance, IP protection, and automotive reliability requirements.

语言能力 | Language Requirements

• 具备良好的中文沟通和技术文档编写能力。

Strong Chinese communication and technical documentation skills.

• 英语可作为工作语言，能够独立阅读和编写英文技术文档、仿真报告、设计评审材料及邮件。

English can be used as a working language, with ability to independently read and write technical documents, simulation reports, design review materials, and emails in English.

• 能够使用英语参加全球技术评审会议，并与海外研发团队开展技术交流。

Able to participate in global technical review meetings in English and communicate with overseas engineering teams.

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