CN110682965A - 一种隔音防火的电动公交车框架 - Google Patents
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Abstract
本发明公开了一种隔音防火的电动公交车框架,包括框架,所述框架内安装有隔离框,所述隔离框内设置有一级隔离层、二级隔离层和三级隔离层,所述二级隔离层设置在一级隔离层与三级隔离层之间,所述一级隔离层为蜂窝层,所述二级隔离层包括阻燃层,所述三级隔离层为真空层,所述阻燃层包括上中下三个隔离腔,所述隔离腔内填充有碳酸粉末,每个所述隔离腔朝向蜂窝层的一侧开设有多个开口。本发明的蜂窝层可以分散噪音,粗糙表面的阻燃层能够有效的对噪音进行漫反射,真空层缺少传播声音的介质,继而起到隔绝噪音的作用,从而能够为后排的乘客良好降低噪音,则坐在后排的乘客能够清楚的听清广播的声音,从而减少不必要的麻烦。
Description
技术领域
本发明涉及电动公交车技术领域,尤其涉及一种隔音防火的电动公交车框架。
背景技术
电动公交车是指以车载蓄电池或电缆等供电设备,提供电能驱动行驶的公交车,电动公交车主要是指纯电动公交车,该类产品噪音小,行驶稳定性高,并且实现零排放,电动公交车具备良好动力性能、持续行驶里程达500公里、电池使用寿命长(两年以上)而且成本较低、与整车的配备良好。
电动公交车相较于传统的公交车整体噪音较小,由于电动公交车的蓄电池和发动机安装在公交车车尾的位置,导致整体的噪音集中在车尾位置,且由于电动公交车使用的是蓄电池,安装在车尾靠近乘客,蓄电池在受到损伤的时候存在可能自然的安全隐患。
发明内容
本发明的目的是为了解决现有技术中存在的缺点,如:整体的噪音集中在车尾位置,且由于电动公交车使用的是蓄电池,存在一定的安全隐患,而提出的一种隔音防火的电动公交车框架。
为了实现上述目的,本发明采用了如下技术方案:
一种隔音防火的电动公交车框架,包括框架,所述框架内安装有隔离框,所述隔离框内设置有一级隔离层、二级隔离层和三级隔离层,所述二级隔离层设置在一级隔离层与三级隔离层之间,所述一级隔离层为蜂窝层,所述二级隔离层包括阻燃层,所述三级隔离层为真空层,所述阻燃层包括上中下三个隔离腔,所述隔离腔内填充有碳酸粉末,每个所述隔离腔朝向蜂窝层的一侧开设有多个开口,所述开口处卡接有活动机构。
优选的,所述活动机构包括卡块、密封块和记忆金属弹簧轴,所述密封块固定连接在卡块靠近开口的一侧,所述密封块卡接在开口内,所述卡块的两侧对称固定连接有记忆金属弹簧轴,所述记忆金属弹簧轴与隔离腔的内壁固定连接。
优选的,所述卡块为T型结构,所述记忆金属弹簧轴连接在卡块较长的一端,所述卡块较小的一端直径大于开口。
优选的,所述开口的侧边为斜面,所述开口靠近蜂窝层的一端口径大于另一端,所述阻燃层的外表面设置粗糙。
与现有技术相比,本发明的有益效果是:
1、蜂窝层可以分散噪音,粗糙表面的阻燃层能够有效的对噪音进行漫反射,真空层缺少传播声音的介质,继而起到隔绝噪音的作用,从而能够为后排的乘客良好降低噪音,则坐在后排的乘客能够清楚的听清广播的声音,从而减少不必要的麻烦。
2、阻燃层内填充有碳酸钙粉末,碳酸钙受热将会分解,分解会产生二氧化碳气体,二氧化碳为阻燃气体,则当火焰蔓延到阻燃层的时候,能够有效的控制火势,为车内乘客争取到足够的逃生时间,且真空层由于没有任何的介质,则能够有效的阻止火焰的继续蔓延,起到保护乘客的作用。
附图说明
图1为本发明提出的一种隔音防火的电动公交车框架的结构示意图;
图2为本发明提出的一种隔音防火的电动公交车框架的内部结构示意图;
图3为图2中A处的结构示意图。
图中:1框架、2隔离框、3真空层、4阻燃层、5蜂窝层、6碳酸粉末、7记忆金属弹簧轴、8密封块、9开口、10卡块。
具体实施方式
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、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。
在本发明的描述中,需要理解的是,术语“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
参照图1-3,一种隔音防火的电动公交车框架,包括框架1,框架1内安装有隔离框2,隔离框2内设置有一级隔离层、二级隔离层和三级隔离层,二级隔离层设置在一级隔离层与三级隔离层之间,一级隔离层为蜂窝层5,二级隔离层包括阻燃层4,三级隔离层为真空层3,阻燃层4包括上中下三个隔离腔,隔离腔内填充有碳酸粉末6,每个隔离腔朝向蜂窝层5的一侧开设有多个开口9,开口9处卡接有活动机构;活动机构包括卡块10、密封块8和记忆金属弹簧轴7,密封块8固定连接在卡块10靠近开口9的一侧,密封块8卡接在开口 9内,卡块10的两侧对称固定连接有记忆金属弹簧轴7,记忆金属弹簧轴7与隔离腔的内壁固定连接,当火势接近到阻燃层4的是时候,各个隔离腔直至整个阻燃层4都将会受热,在火焰炙烤下温度迅速上升,阻燃层4内的碳酸粉末6也将会受热被加温,且记忆金属弹簧轴 7也将会受热展开拉长,记忆金属弹簧轴7在伸展的过程中会带动卡块10和密封块8移动,密封块8将会与开口9脱离,碳酸粉末6受热分解出二氧化碳,二氧化碳是不燃物,则能够避免火势的蔓延;
其中,卡块10为T型结构,记忆金属弹簧轴7连接在卡块10较长的一端,卡块10较小的一端直径大于开口9,开口9的侧边为斜面,开口9靠近蜂窝层5的一端口径大于另一端,阻燃层4的外表面设置粗糙,锥形的结构便于内部受热其他的发散。
本发明中,使用者使用该装置时,框架1为电动公交车车尾封装蓄电池和发动机的外壳,框架1隔绝着电动公交车蓄电池与后排乘客座位,电动公交车在启动的时候,发动机转动会发出噪音,由于蜂窝层5为蜂窝状结构,当声音经过框架1向车内传递的时候,蜂窝状结构的蜂窝层5将会分散噪音,蜂窝层5内有多个小空间,各个小空间的侧壁能够有效的吸收外界的震动,并且将其转化为蜂窝结构的变形能,然后再缓慢的进行释放,声音是由于物体振动产生的声波,通过介质传播并且能够被人或者动物的听觉器官感知的波动现象,当声波进入蜂窝层5内后,会引起空气和材料的振动,由于摩擦阻力和粘滞阻力,使一部分声能转化为热能而散失掉,因而起到消声的作用;未被消散的声音会经过阻燃层4,由于阻燃层4的外表面十分的粗糙,当声波接触到阻燃层4外表面的时候,粗糙面造成声波的漫反射,声能相应的被消散,再一次的实现对噪音的消散;当噪音经过了蜂窝层 5和阻燃层4之后,还需要经过真空层3才能穿向电动公交车的车厢内,由于真空层3内部为真空结构,真空层3内部缺少声音传播声音的介质,则将真空层3隔绝在发动机与乘客之间,继而能够起到隔绝噪音传播的作用;上的蜂窝层5、阻燃层4和真空层3共同配合作用,最终达到减小噪音的作用,坐在车尾位置的乘客与发动机之间有效的隔绝开,则乘客就能够良好的接收广播里面的声音,从而实时的了解电动公交车的行驶状况。
蓄电池是一种易燃物质,蓄电池一般安装在电动公交车的车尾处,一旦蓄电池发生自燃的问题将会从车尾向内部持续蔓延,发生火灾问题的时候,人们很容易出现恐慌,此时需要为车内的人们争取足够的逃生时间,当火焰接触到蜂窝层5的时候,蜂窝层5能够有效的避免火势的继续蔓延,继而起到防火的作用,但是蜂窝层5在高温的炙烤作用下会发热,不能长久的使得乘客远离危险,在热传导的作用下阻燃层4的靠近蜂窝层5一侧也将会受热,相应的阻燃层4内部的记忆金属弹簧轴7会受热,根据记忆金属弹簧轴7材质本身的固有属性,记忆金属弹簧轴7在低温环境下呈现收缩状态,记忆金属弹簧轴 7在高温环境下呈现伸展状态,则当阻燃层4受热的时候,记忆金属弹簧轴7将由收缩状态转变为伸展状态,记忆金属弹簧轴7伸展的时候会带动卡块10和密封块8移动,密封块8与开口9脱离,开口9 处于开放状态,阻燃层4受热的时候同时内部的碳酸粉末6也将会受热,根据化学反应将会从各个开口9处逐步发散出不可燃物CO2,CO2能够抑制火势的继续蔓延,且当环境中空气的含氧量由于CO2而降低,缺乏足够氧气的环境中,火焰将会熄灭,继而可以达到灭火的目的;但是当火势蔓延过快的时候,内部真空结构的真空层3也能够抑制火焰,真空层3内部没有任何的介质可以帮助火焰继续燃烧,则就能够有效的起到灭火的作用,从而为乘客提供足够的逃生时间,有效的避免由于火势蔓延过快导致的伤亡时间。
以上,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (4)
1.一种隔音防火的电动公交车框架,包括框架(1),其特征在于,所述框架(1)内安装有隔离框(2),所述隔离框(2)内设置有一级隔离层、二级隔离层和三级隔离层,所述二级隔离层设置在一级隔离层与三级隔离层之间,所述一级隔离层为蜂窝层(5),所述二级隔离层包括阻燃层(4),所述三级隔离层为真空层(3),所述阻燃层(4)包括上中下三个隔离腔,所述隔离腔内填充有碳酸粉末(6),每个所述隔离腔朝向蜂窝层(5)的一侧开设有多个开口(9),所述开口(9)处卡接有活动机构。
2.根据权利要求1所述的一种隔音防火的电动公交车框架,其特征在于,所述活动机构包括卡块(10)、密封块(8)和记忆金属弹簧轴(7),所述密封块(8)固定连接在卡块(10)靠近开口(9)的一侧,所述密封块(8)卡接在开口(9)内,所述卡块(10)的两侧对称固定连接有记忆金属弹簧轴(7),所述记忆金属弹簧轴(7)与隔离腔的内壁固定连接。
3.根据权利要求2所述的一种隔音防火的电动公交车框架,其特征在于,所述卡块(10)为T型结构,所述记忆金属弹簧轴(7)连接在卡块(10)较长的一端,所述卡块(10)较小的一端直径大于开口(9)。
4.根据权利要求1所述的一种隔音防火的电动公交车框架,其特征在于,所述开口(9)的侧边为斜面,所述开口(9)靠近蜂窝层(5)的一端口径大于另一端,所述阻燃层(4)的外表面设置粗糙。
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