The integration of sound absorption honeycomb board with a built-in resonance cavity, which comprises an upper panel and a lower panel and the middle cylindrical honeycomb core, the cylindrical honeycomb core includes a honeycomb core and honeycomb core to shorten the length, shorten the height difference between the honeycomb core and honeycomb core long exist, the honeycomb core and shorten the cavity formation. The lower panel, the shortening of each core cell honeycomb core in the upper and lower ends are covered with a cap plate. The cylindrical hole of the honeycomb core can form micro hole, there are holes, by adjusting the height of the honeycomb core and honeycomb sandwich structure in high frequency sound insulation performance, while having low frequency sound absorption performance, the invention has the advantages of simple structure, no need to add or change too much structure can achieve the effect of sound absorption in low-frequency noise the. In addition, the honeycomb core is shortened partly in the structure. Compared with the same high constant honeycomb core structure, the material is saved, the quality is reduced and the cost is reduced.
【技术实现步骤摘要】
一种内置共振腔的吸隔声一体化蜂窝板
本专利技术涉及一种吸隔声板材结构。
技术介绍
蜂窝夹层结构的蜂窝夹芯常采用多边形,如正六边形、菱形和矩形等,同时也有圆形孔蜂窝芯结构。蜂窝夹层板结构一般在中高频具有一定隔声性能,但低频隔声效果较差,而且吸声性能有待提高。
技术实现思路
本专利技术的目的在于提供一种内置共振腔的吸隔声一体化蜂窝板,克服原蜂窝夹层板结构低中频吸隔声效果差的缺点。一种内置共振腔的吸隔声一体化蜂窝板,其特征在于:包括上面板、下面板以及中间的圆柱形蜂窝芯,所述圆柱形蜂窝芯包括长蜂窝芯和缩短蜂窝芯,缩短蜂窝芯与长蜂窝芯之间存在高度差,使得缩短蜂窝芯与上下面板间形成空腔,所述缩短蜂窝芯中每一个芯子胞元的上下两端都盖有板帽。优选地,所述圆柱形蜂窝芯之间是紧密排列。优选地,所述缩短蜂窝芯高度与长蜂窝芯高度之比为1:4。优选地,缩短蜂窝芯子胞元三个构成一组,形成缩短蜂窝芯组。优选地,所述缩短蜂窝芯组的位置在长蜂窝芯高度的中间处。优选地,所述的面板与蜂窝芯之间、蜂窝芯与蜂窝芯之间、缩短的蜂窝芯与板帽之间都是胶合连接。本专利技术的有益效果是:由于圆柱形孔蜂窝芯之间可形成微小 ...
【技术保护点】
一种内置共振腔的吸隔声一体化蜂窝板,其特征在于:包括上面板(1)、下面板(5)以及中间的圆柱形蜂窝芯,所述圆柱形蜂窝芯包括长蜂窝芯(2)和缩短蜂窝芯(3),缩短蜂窝芯(3)与长蜂窝芯(2)之间存在高度差,使得缩短蜂窝芯(3)与上下面板间形成空腔,所述缩短蜂窝芯(3)上下两端都盖有板帽(4)。
【技术特征摘要】
1.一种内置共振腔的吸隔声一体化蜂窝板,其特征在于:包括上面板(1)、下面板(5)以及中间的圆柱形蜂窝芯,所述圆柱形蜂窝芯包括长蜂窝芯(2)和缩短蜂窝芯(3),缩短蜂窝芯(3)与长蜂窝芯(2)之间存在高度差,使得缩短蜂窝芯(3)与上下面板间形成空腔,所述缩短蜂窝芯(3)上下两端都盖有板帽(4)。2.根据权利要求1所述的内置共振腔的吸隔声一体化蜂窝板,其特征在于:圆柱形蜂窝芯之间是紧密排列。3.根据权利要求1或2所述的内置共振腔的吸隔声一体化蜂窝板,其特征在于:所述缩...
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