CN110861368A - 一种内饰安装用热桥阻断结构 - Google Patents
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Abstract
本发明公开了一种内饰安装用热桥阻断结构,其结构由下至上依次为蒙皮(1)、隔热保温层(2)、内饰安装基板(3)、内饰板(4);其中,所述蒙皮(1)上表面安装有螺杆(11),所述隔热保温层(2)内有贯穿的安装孔(21),所述内饰安装基板(3)内设有沉孔(33)、所述沉孔(33)内安装有下沉螺母(31)、垫片(32),下沉螺母(31)与螺杆(11)在所述安装孔(21)内配合,所述内饰板(4)上表面安装有螺钉(41)。本发明结构各层固定稳固、牢靠,同时能有效降低蒙皮向螺柱以及螺母传递的热量,避免螺柱以及螺母表面形成热量汇集点,提升方舱内部整体的热防护。
Description
技术领域
本发明涉及热防护领域,具体涉及一种内饰安装用热桥阻断结构。
背景技术
一些装备或设备由于其需要在高温环境下(>200℃)使用,通常需要对其进行隔热设计,例如特种车厢或方舱的内部采用泡沫类隔热材料或隔热纤维类隔热材料以及多层隔热材料,通常为保证车厢或方舱内部美观性,需要在隔热材料的外表面加装内饰材料,由于特殊车厢或方舱对内饰结构安装的可靠性以及高温环境下的使用性能,常规的高分子材料类紧固件或扣件的安装形式不能满足使用要求。现如今主要采用直接将螺柱焊接至车厢或方舱蒙皮,再直接将内饰板安装于车厢或方舱蒙皮表面延生的螺杆上。使用该安装方式,车厢或方舱在高温环境下时,由于焊接用的螺柱通常为金属材质,其具有很大的导热系数,蒙皮上的热量将直接通过螺柱传递至螺柱上表面,并使螺母表面的温度过高,从而该高温螺母位置将向车厢或方舱内饰辐射大量热量,降低车厢或方舱的整体热防护。同时,由于车厢或方舱内饰通常采用高分子材料或复合材料制造,其使用温度范围为(80~100)℃,当螺杆的温度超过该温度时,将使内饰材料失效。
发明内容
针对上述现有技术中存在的问题,本发明的目的在于提供一种内饰安装用热桥阻断结构,其能有效降低蒙皮向螺柱以及螺母传递的热量,从而避免螺柱与螺母表面向舱内释放热量,提升方舱整体热防护、提升方舱内饰的可靠性。
本发明目的通过以下技术方案实现:
一种内饰安装用热桥阻断结构,其特征在于:其结构由下至上(即由方舱外部向内部)依次为蒙皮、隔热保温层、内饰安装基板、内饰板;其中,所述蒙皮上表面固定安装螺杆,所述隔热保温层内有贯穿的安装孔,所述螺杆在所述安装孔内连接一个下沉螺母;所述内饰安装基板采用金属板材、其内设有沉孔,沉孔中轴线与所述安装孔的中轴线共线,所述下沉螺母在所述沉孔内、与一块垫片配合将所述内饰安装基板固定安装在所述蒙皮螺杆上,所述垫片下表面与内饰安装基板上表面接触、所述垫片上表面与所述下沉螺母的螺帽下表面接触,所述下沉螺母上表面不与所述内饰板接触且所述下沉螺母直径小于所述垫片直径;所述内饰板上表面通过螺钉进行安装固定,所述螺钉依次穿过所述内饰板的贯穿定位孔与内饰安装基板;所述螺钉的中轴线与两个相邻螺杆中轴线的中心线共线。
通过上述结构的设定,将内饰板与螺杆隔离,防止极限工况下螺杆聚集的热量直接传递给内饰板安装紧固螺钉,从而导致内饰板安装紧固螺钉的热量升高、影响方舱内部整体的热防护。利用配合垫片的接触隔离与沉孔的空间隔热,防止下沉螺母处成为局部高温点,同时;通过内饰安装基板的设定,吸收大部分螺杆汇聚的热量,利用长路径以及大范围,进行均匀的分散和扩散,有利于热量在内饰安装基板内均匀分布、传递、消散,防止局部汇集、产生高温;从而保护内饰材料,并减少热量向内部空间传递。
进一步,为了进一步起到隔离效果,所述垫片的材质为云母、聚四氟乙烯、电木中的任意一种。
进一步,所述沉孔的直径大于所述垫片的直径;所述沉孔的深度大于所述内饰安装基板厚度的1/2、小于所述内饰安装基板厚度的3/4。
进一步,为了保证螺钉的散热效果,所述螺钉长度下部埋入所述隔热保温层的距离为5~10mm。
进一步,所述内饰安装基板的材质为钢、铝合金中的任意一种。
进一步,所述内饰安装基板的厚度为3~5mm。
进一步,为了保证内饰安装基板的散热效率,所述相邻螺柱的中心线的距离不小于所述内饰安装基板厚度的15倍。
进一步,所述贯穿定位孔与所述螺钉的螺帽直径相等。
本发明具有如下技术效果:
本发明用于方舱内饰安装的热桥阻断结构,能有效降低蒙皮向螺柱以及螺母传递的热量,避免螺柱以及螺母表面形成热量汇集点,从而避免螺柱与螺母表面向舱内释放热量,有效提升方舱整体热防护、提升方舱内饰的可靠性。本发明结构可靠,安装简便,应用范围广。
附图说明
图 1为本发明实施例中热桥阻断结构的结构示意图。
图2为本发明实施例中热桥阻断结构沉孔内的局部俯视图。
其中,1、蒙皮;11、螺杆;2、隔热保温层;21、安装孔;3、内饰安装基板;31、下沉螺母;32、垫片;33、沉孔;4、内饰板;41、螺钉;42、贯穿定位孔。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。
实施例1:
如图1所示,一种内饰安装用热桥阻断结构,其特征在于:其结构由下至上(即由方舱外部向内部)依次为蒙皮1、隔热保温层2、内饰安装基板3、内饰板4;其中,所述蒙皮1上表面安装有螺杆11,所述隔热保温层2内有贯穿的安装孔21,隔热保温层2采用常规的隔热保温材料,如硅酸镁纤维等;所述螺杆11在所述安装孔21内连接一个下沉螺母31。所述内饰安装基板采用金属板材,为钢、铝合金中的任意一种,优选钢合金;内饰安装基板3内设有沉孔33,沉孔33中轴线与所述安装孔21的中轴线共线,所述下沉螺母31在所述沉孔33内、与一块垫片32配合将所述内饰安装基板3固定安装在所述蒙皮1螺杆11上,所述垫片32下表面与内饰安装基板3上表面接触、所述垫片32上表面与所述下沉螺母31的螺帽下表面接触;垫片32的材质为云母、聚四氟乙烯、电木中的任意一种,优选云母。所述下沉螺母31上表面不与所述内饰板4接触且所述下沉螺母31直径小于所述垫片32直径;所述内饰板4上表面通过螺钉41进行安装固定,所述螺钉41依次穿过所述内饰板4的贯穿定位孔42与内饰安装基板3,所述贯穿定位孔42与所述螺钉41的螺帽直径相等且所述螺钉41中心轴线与所述贯穿定位孔42中心轴线在一条直线上;所述螺钉41的中轴线与两个相邻螺杆11中轴线的中心线共线。所述螺钉41的螺帽与所述内饰板4之间通过弹簧垫片等填充物进行填充固定,弹簧垫片的直径大于螺钉41螺帽的直径。
为了保证隔热、散热效果以及防止出现大量热量汇集点,沉孔33的直径大于垫片32的直径;沉孔33的深度为D,内饰安装基板3厚度为H,内饰板4厚度为S,两个相邻螺柱(11)的中心线的距离为L;则 H<D< H,L≥15H、优选为L=20H。H=3~5mm、优选4mm。
为了保证螺钉的散热效果,所述螺钉11长度下部埋入所述隔热保温层2的距离为5~10mm、优选8mm。
上述结构通过垫片32、下沉螺母31、沉孔33、内饰安装基板3、螺钉41的组合,既保证每层结构的稳固安装、防止结构脱落,又将内饰板4与螺杆11进行了隔离,防止极限工况下螺杆11聚集的热量直接传递给内饰板4,从而导致内饰板4的热量升高、影响方舱内部整体的热防护。同时,上述结构还有效的对螺杆11与下沉螺母31处汇集的热量进行均匀分解散失,防止结构内部出现局部汇集、产生高温的现象;本结构导热、散热快,效率高,能快速实现分解散热。
Claims (5)
1.一种内饰安装用热桥阻断结构,其特征在于:其结构由下至上依次为蒙皮(1)、隔热保温层(2)、内饰安装基板(3)、内饰板(4);其中,所述蒙皮(1)上表面固定安装螺杆(11),所述隔热保温层(2)内有贯穿的安装孔(21),所述螺杆(11)在所述安装孔(21)内连接一个下沉螺母(31);所述内饰安装基板(3)采用金属板材、其内设有沉孔(33),沉孔(33)中轴线与所述安装孔(21)的中轴线共线,所述下沉螺母(31)在所述沉孔(33)内、与一块垫片(32)配合将所述内饰安装基板(3)固定安装在所述蒙皮(1)螺杆(11)上,所述垫片(32)下表面与内饰安装基板(3)上表面接触、所述垫片(32)上表面与所述下沉螺母(31)的螺帽下表面接触,所述下沉螺母(31)上表面不与所述内饰板(4)接触且所述下沉螺母(31)直径小于所述垫片(32)直径;所述内饰板(4)上表面通过螺钉(41)进行安装固定,所述螺钉(41)依次穿过所述内饰板(4)的贯穿定位孔(42)与内饰安装基板(3);所述螺钉(41)的中轴线与两个相邻螺杆(11)中轴线的中心线共线。
2.根据权利要求1所述的一种内饰安装用热桥阻断结构,其特征在于:所述垫片(32)的材质可为云母、聚四氟乙烯、电木中的任意一种。
3.根据权利要求2所述的一种内饰安装用热桥阻断结构,其特征在于:所述螺钉(41)长度下部埋入所述隔热保温层(2)的距离为5~10mm。
4.根据权利要求3所述的一种内饰安装用热桥阻断结构,其特征在于:所述内饰安装基板(3)的材质可为材质为钢、铝合金中的任意一种。
5.根据权利要求4所述的一种内饰安装用热桥阻断结构,其特征在于:所述内饰安装基板(3)的厚度厚度为3~5mm。
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