CN106335256B - 一种带散热功能的汽车前盖消音垫 - Google Patents

一种带散热功能的汽车前盖消音垫 Download PDF

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CN106335256B
CN106335256B CN201610724528.2A CN201610724528A CN106335256B CN 106335256 B CN106335256 B CN 106335256B CN 201610724528 A CN201610724528 A CN 201610724528A CN 106335256 B CN106335256 B CN 106335256B
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潘建新
张陆贤
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Guangde God's Will New Technology Ltd Co
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Abstract

一种带散热功能的汽车前盖消音垫，包括阻尼隔音毡、铝合金散热片、EVA发泡层、无纺布层、CPVC层和硅橡胶层；所述CPVC层上均匀设置有通孔，所述通孔与无纺布层相通。本发明具有优良的消音、阻燃、防潮、隔热、减震的效果，且质量轻、避免厚重，外形平整美观，所采用的材料在封闭的空间使用无刺鼻异味，环保无污染；在制备方法中，采用EVA发泡层在铝合金散热片上喷涂的工艺，粘结牢固，提高材料利用率，减少原料浪费。

Description

一种带散热功能的汽车前盖消音垫
技术领域
本发明涉及汽车内部饰件技术领域，具体涉及一种带散热功能的汽车前盖消音垫。
背景技术
汽车发动机是汽车的心脏，为汽车行走提供动力，发动机就是一个能量转换机构，即将汽油或者柴油或是天然气的热能，通过再密封气缸内燃烧气体膨胀，推动活塞做功，转变为机械能的最基本工作原理，因此发动机一般是设置在汽车的前部，且设置在车前盖下。
因此发动机在工作时容易产生噪音，同时也会发热，也会产生蒸汽，因此就需要对发动机进行隔音散热和防潮，现有的车前盖的只具有隔音效果，但是隔音效果不是很好，同时硬度也不够，长期使用容易变形，散热效果不好，也不具有防潮的功能。
发明内容
本发明的目的在于针对现有技术之弊端，提供一种带散热功能的汽车前盖消音垫。
一种带散热功能的汽车前盖消音垫，其特征在于，包括阻尼隔音毡、铝合金散热片、EVA发泡层、无纺布层、CPVC层和硅橡胶层；
所述阻尼隔音毡位于与车体接触的内侧，所述铝合金散热片位于所述阻尼隔音毡上表面，所述EVA发泡层位于所述铝合金散热片上端，所述无纺布层位于所述EVA发泡层的上表面，所述CPVC层位于所述无纺布层的上表面；所述CPVC层上均匀设置有通孔，所述通孔与无纺布层相通；所述硅橡胶层位于本发明的外表面。
本发明的制备方法为：
a.模压阻尼隔音毡，阻尼隔音毡的形状尺寸与汽车前盖接触面相配合，将铝合金散热片与阻尼隔音毡接触的面涂上粘结剂，将载有铝合金散热片的下模输送用于复合阻尼隔音毡的模压机内，该模压机的上模具有吸附功能，预先将阻尼隔音毡片材吸附到上模处，待载有铝合金散热片的下模输送到位后模压机合模，模压完成阻尼隔音毡与铝合金散热片的复合，得到消音垫半成品一；
b.PU发泡层喷涂：将步骤a中得到的半成品一输送到喷涂区，向铝合金散热片外表面上喷涂PU发泡层；喷涂量控制在30g-60g/秒，喷涂均匀厚度为1～3mm；
c.通过硅溶胶粘接无纺布层和CPVC层和硅橡胶层，得到消音垫的半成品二；
d.通过硅溶胶粘接喷涂有EVA发泡层的半成品一和半成品二，再输送到模压机中将六个结构层复合为一体，形成本发明产品件。
进一步的，所述阻尼隔音毡厚度为0.8～1.2mm，所述铝合金散热片厚度为3～4mm，所述EVA发泡层厚度为1～3mm，所述无纺布层厚度为4～5mm，所述CPVC层厚度为1～3mm，所述硅橡胶层厚度为1～2mm。
本发明的有益效果为：本发明采用阻尼隔音毡、铝合金散热片、EVA发泡层、无纺布层、CPVC层和硅橡胶层制成，使本发明具有优良的消音、阻燃、防潮、隔热、减震的效果，且质量轻、避免厚重，外形平整美观，所采用的材料在封闭的空间使用无刺鼻异味，环保无污染；在制备方法中，采用EVA发泡层在铝合金散热片上喷涂的工艺，粘结牢固，提高材料利用率，减少原料浪费。
附图说明
图1为本发明的剖面示意图；
其中，1-阻尼隔音毡；2-铝合金散热片；3-EVA发泡层；4-无纺布层；5-CPVC层；6-硅橡胶层；7-通孔。
具体实施方式
以下结合具体实施方式对本发明做进一步详细说明。
一种带散热功能的汽车前盖消音垫，包括阻尼隔音毡1；铝合金散热片2、EVA发泡层3、无纺布层4、CPVC层5和硅橡胶层6；所述阻尼隔音毡1位于与车体接触的内侧，厚度为0.8～1.2mm，采用阻尼隔音毡1，厚度薄，在同等面积下有效地提高了空间的使用率，创造更大的效益；隔音效果有非常好地保证；还能防潮、阻燃，无毒环保，稳定耐用，能提高本发明的使用寿命；
所述铝合金散热片2位于所述阻尼隔音毡1上表面，厚度为3～4mm，铝合金应用广泛，成本低，采用铝合金作为散热片效果优于其他合金散热片，经实验表明，铝合金厚度为3～4mm时，散热效果最佳；不仅如此，加入铝合金散热片，可为本发明定型，提高本发明的硬度；
所述EVA发泡层3位于所述铝合金散热片上2上端，厚度为1～3mm；加上EVA发泡层，可增加本发明弹性，提高消音、隔热效果，还可有效防静电；
所述无纺布层4位于所述EVA发泡层3的上表面，厚度为4～5mm，无纺布层具有透气、隔音、不助燃的特点，能提高本发明的使用性能；
所述CPVC层5位于所述无纺布层4的上表面，厚度为1～3mm，CPVC俗称过氯乙烯，由PVC经氯化而得的一种热塑性树脂，由溶液氯化法制，不仅有PVC材料稳定、耐腐蚀、阻燃、绝缘等优点，同时弥补PVC的缺点，耐热耐燃性耐水性更优；所述CPVC层5上均匀设置有通孔7，通孔7与无纺布层4相通，具有散热透气防潮的功能；
所述硅橡胶层6位于本发明的外表面，厚度为1～2mm，用它作为本发明的外表面，不仅使本发明外观平整光滑，还具有防潮、避尘、防震、耐热、耐腐蚀、收缩小的特点。
本发明的制备方法为：
a.模压阻尼隔音毡，阻尼隔音毡的形状尺寸与汽车前盖接触面相配合，将铝合金散热片与阻尼隔音毡接触的面涂上粘结剂，将载有铝合金散热片的下模输送用于复合阻尼隔音毡的模压机内，该模压机的上模具有吸附功能，预先将阻尼隔音毡片材吸附到上模处，待载有铝合金散热片的下模输送到位后模压机合模，模压完成阻尼隔音毡与铝合金散热片的复合，得到消音垫半成品一；
b.PU发泡层喷涂：将步骤a中得到的半成品一输送到喷涂区，向铝合金散热片外表面上喷涂PU发泡层；喷涂量控制在30g-60g/秒，喷涂均匀厚度为1～3mm；
c.通过硅溶胶粘接无纺布层和CPVC层和硅橡胶层，得到消音垫的半成品二；硅溶胶可用作耐火材料的粘结剂，它的粘结力强，耐高温，还能抗污防尘、耐老化、防火；
d.通过硅溶胶粘接喷涂有EVA发泡层的半成品一和半成品二，再输送到模压机中将六个结构层复合为一体，形成本发明产品件。
以上对本发明的一个实施例进行了详细说明，但所述内容仅为本发明的较佳实施例，不能被认为用于限定本发明的实施范围。凡依本发明申请范围所作的均等变化与改进等，均应仍归属于本发明的专利涵盖范围之内。

Claims (2)

1.一种带散热功能的汽车前盖消音垫，其特征在于，包括阻尼隔音毡、铝合金散热片、EVA发泡层、无纺布层、CPVC层和硅橡胶层；
所述阻尼隔音毡位于与车体接触的内侧，所述铝合金散热片位于所述阻尼隔音毡上表面，所述EVA发泡层位于所述铝合金散热片上端，所述无纺布层位于所述EVA发泡层的上表面，所述CPVC层位于所述无纺布层的上表面；所述CPVC层上均匀设置有通孔，所述通孔与无纺布层相通；所述硅橡胶层位于汽车前盖消音垫的外表面；
汽车前盖消音垫的制备方法为：
a.模压阻尼隔音毡，阻尼隔音毡的形状尺寸与汽车前盖接触面相配合，将铝合金散热片与阻尼隔音毡接触的面涂上粘结剂，将载有铝合金散热片的下模输送到用于复合阻尼隔音毡的模压机内，该模压机的上模具有吸附功能，预先将阻尼隔音毡片材吸附到上模处，待载有铝合金散热片的下模输送到位后模压机合模，模压完成阻尼隔音毡与铝合金散热片的复合，得到消音垫半成品一；
b.EVA发泡层喷涂；
c.通过硅溶胶粘接无纺布层和CPVC层和硅橡胶层，得到消音垫的半成品二；
d.通过硅溶胶粘接喷涂有EVA发泡层的半成品一和半成品二，再输送到模压机中将六个结构层复合为一体，形成汽车前盖消音垫产品件。
2.根据权利要求1所述的一种带散热功能的汽车前盖消音垫，其特征在于，所述阻尼隔音毡厚度为0.8～1.2mm，所述铝合金散热片厚度为3～4mm，所述EVA发泡层厚度为1～3mm，所述无纺布层厚度为4～5mm，所述CPVC层厚度为1～3mm，所述硅橡胶层厚度为1～2mm。
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