汽车通风换气孔泄压阀设计

ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.ITWShanghai2015.09.11ITW关于泄压阀/强制排风口/AIRVENT的介绍ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.目录指引1.泄压阀/强制排风口产品的功能作用2.目前常见泄压阀/强制排风口存在的问题；3.ITW产品的设计理念和优势；4.ITW现有的泄压阀种类；5.ITW关于对该类产品的测试对比6.总结。ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.1.来自轿厢内的压力2.通过PRV泄压3.轿厢内压力降低4.轿厢内压力恢复泄压阀车身钣金孔泄压阀产品的功能ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.通常每车2件，对称安装在车身的尾部或后保靠近后轮罩处，是整个轿厢通过后行李箱和外界空气相通的“窗口”。该零件所处的工作环境较为恶劣，需要通过耐高低温、耐腐蚀、耐久性试验。安装位置为调节车内压力，保证乘坐舒适性，需要安装泄压阀车内外压力差产生的主要原因开关门行驶过程中开关窗空调运行产生压强差泄压阀产品的功能ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.泄压阀产品常见的问题及产生的影响问题一：泄压阀的密封圈和车身配合处出现老化、变形，胶贴脱落现象，从而产生行李箱漏水，进灰现象。有时在淋雨试验是就能发现，但是大多数情况发生在售后1-2年间。ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.泄压阀产品常见的问题及产生的影响问题二：泄压阀的通风叶片材料的耐腐蚀性和耐温性不好，在车辆的寿命期限内产生翘曲变形，使得轿厢形成直接向外的常开窗口，产生进水和进灰现象，直接影响NVH。问题三：叶片的安装方式不当，造成在需要排压时，叶片的根部被压紧，叶片不能顺畅打开ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.ITW为主机厂解决的典型案例ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.1.热塑性弹性体TPE材料，有良好的延展性，具有抗撕裂性能及良好的弹性和稳定性，相对于发泡材料具有明显的抗老化和防腐蚀性能2.PP-T20,材料轻，耐热性，稳定性好3.新型特殊材料，材质轻，易于排风，各方面性能稳定，贴合性好7.斜坡设计避免积水，零件在喷淋试验中表现良好5.ITW独创”挂钩式”(Hooker)结构设计,此结构保证挡风片能轻松顺利的张开和闭合，保证良好通风效果并有效降低噪音。6.上下分别为R10和R20的圆角，不同R大小以避免工人将通风框上下倒置安装，起到防倒装作用。4.流水槽设计，避免水积漏ITW泄压阀产品的设计理念Howareweproducingthispart?ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.1）部番：FX.24518G200产品信息：a.车体开孔尺寸：122X92（mm）b.车型平台：VW，Audi，SeatLeon等Chery/SAIC/SGMW2）部番：FX.24530G200产品信息：a.车体开孔尺寸：196X94（mm）b.车型平台：VW411（NMS新),AentryChery/Changan/Dongfeng3）部番：FX.24534G200产品信息：a.车体开孔尺寸：182X42（mm）b.车型平台：新Lavida，SeatLeon,CheryITW根据车身装配位置和排风量设计的3类产品ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.合格功能试验一：淋雨试验模拟ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.TestStdNo.试验标准Requirements试验要求(限值等）TestResults试验结果Conclusion结论Sample#1样件1高温存储温度产品在90℃的环境温度下存储96h，不发生翘曲变形无翘曲变形合格同类产品试验前合格功能试验二：耐温试验同类产品试验后ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.气流测试流量L/SP1泄压阀P2压强差=P1-P2功能试验三：排风量试验768041HM1A-25768041HM1A-50768041HM1A-100768041HM1A-125FX.24534G200-25cFX.24534G200-50cFX.24534G200-100cFX.24534G200-125c此试验由ITW委托德国IAV公司实施ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.功能试验三：排风量试验结果对比ITWFX24518G200A虽然通风面积小于768042DD0A,但是由于采用好的叶片材料，通风排压效果仍比768042DD0A通风排压效果高。.ITW独创”挂钩式”(Hooker)结构设计,此结构保证挡风片能轻松顺利的张开和闭合，保证良好通风效果并有效降低噪音ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.PressureTestIAV03.05.2011Pressure:(压强差）25109.2030.33108.7230.2050173.3048.14175.5748.77100268.5074.58270.1475.04125306.6085.17309.7686.04[Pa][m^3/h][l/s][m^3/h][l/s]Leakageat200Pa[l/s]（漏风量）ITWFX.24534G200768041HM1A0.021.07ITWFX24534G200虽然通风面积小于768041HM1A,但是通风排压效果相当功能试验三：排风量试验结果对比ShanghaiInnovativeSolutionsForAutomotiveTheinformationthatisattachedandbeingpresentedistheconfidentialpropertyofITWandcannotbeshared,copiedorreproducedwithoutthewrittenconsentofITWShanghai.ITW上海依工是专业设计开发和制造泄压阀的公司，有成熟的经验和优势。1.技术优势1）ITW泄压阀的框体用双色注塑的TPE；现有用的是发泡海绵，经常老化导致密封失效；2）ITW泄压阀的挡风片是特殊进口材料轻质；现有用的挡风片是橡胶重，泄压能力差；3）ITW泄压阀可以缩小车身钣金孔，技术上是优化可以杜绝漏水漏灰尘，降低噪音，提案整车的NVH（舒适度）。2.质量优势1）ITW泄压阀是国际整车厂成熟产品，已在国内诸多厂家各系车型采用，通过各家主机厂严格的认证。2）实验设备保证：ITW海外公司有专业的通风雨淋试验设备及配套