CN114855446A - 一种用于密封框体的密封材料和密封条及配电柜 - Google Patents

一种用于密封框体的密封材料和密封条及配电柜 Download PDF

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CN114855446A
CN114855446A CN202210489604.1A CN202210489604A CN114855446A CN 114855446 A CN114855446 A CN 114855446A CN 202210489604 A CN202210489604 A CN 202210489604A CN 114855446 A CN114855446 A CN 114855446A
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sealing
hydrophobic
distribution cabinet
layer
nanofiber
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徐海红
程昊洋
赵东
沈静
汪洋
陈小玲
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Hubei University of Science and Technology
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Hubei University of Science and Technology
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Abstract

本发明公开了一种用于密封框体的密封材料和密封条及配电柜,密封材料为多层超疏水纳米纤维,超疏水纳米纤维是将含SiO2‑NPs和疏水化合物异氰酸酯的悬浮液喷涂在棉纤维基材表面而形成的;纳米纤维的水表面接触角>150°,单根棉纤维基材的直径约为μm量级;喷涂的疏水涂层的厚度为纳米量级;将单层编织物逐层堆叠,形成总厚度为5mm疏水纳米纤维垫;再用胶水将纳米纤维垫固定在密封件的密封接触面上。本发明的特点和有益效果在于:本发明专利可靠性高,制造方便,可适用于大部分恶劣极端环境,以及大规模批量生产。

Description

一种用于密封框体的密封材料和密封条及配电柜
技术领域
本发明属于密封技术领域,涉及一种用密封的材料及相关装置。
背景技术
一般地,水和灰尘中存在大量的载流子,因此水和灰尘具有导电性,继而水和灰尘会引起电路短路,使设备失效,甚至损坏设备。特别地,漏电事故可能会对人生命安全造成威胁。所以用电设备总是会受到水和灰尘环境的限制,比如,极端天气下的空气湿度过大,一些工业的除尘车间,或者是一些较为特殊的自然环境。在这些场景中用电,往往要保证供电的可靠性,而如何实现配电柜的防水、防尘功能,是必然要考虑的重要问题。
一般的配电柜设备为了达到简单的防水、防尘要求,通常通过一些机械结构来实现,这会导致柜的密封性差,而且空气中水气与灰尘非常容易进入柜内,造成柜内设备的老化甚至损坏。但是,若将配电柜作全密封处理后,又会导致柜内温度不断升高,从而导致火灾等安全隐患。以上方案都会导致供电的可靠性下降,不能在特殊环境下保证用电设备持续地工作,因此,迫切地需要设计一款新型配电柜,来提供长时间、安全、方便的用电需求,以满足人们生活和生产需要。随着半导体制冷片的应用和超疏水纳米纤维的兴起,为传统的配电柜升级和改良提供了新的方向。
发明内容
一种防尘、防水和自动温湿度控制的密封装置及配电柜。
本发明的技术方案是:
一种用于密封框体的密封材料,其特征在于,所述密封材料为多层超疏水纳米纤维,所述超疏水纳米纤维是将含SiO2-NPs和疏水化合物异氰酸酯的悬浮液喷涂在棉纤维基材表面而形成的。
进一步地,上述纳米纤维的水表面接触角>150°,单根棉纤维基材的直径约为μm量级;喷涂的疏水涂层的厚度为纳米量级。
一种包含上述的用于密封框体的密封材料制备的密封条,将单层编织物逐层堆叠,形成总厚度为5mm疏水纳米纤维垫;再用胶水将纳米纤维垫固定在密封件的密封接触面上。
上述的密封条在密封门框上的应用。
一种配电柜,配电柜设有柜门和其对应的框体,柜门和框体设有相对应的密封条,密封条由用于密封框体的密封材料制备而成,所述密封材料为多层超疏水纳米纤维,所述超疏水纳米纤维是将含SiO2-NPs和疏水化合物异氰酸酯的悬浮液喷涂在棉纤维基材表面而形成的。
进一步地,上述纳米纤维的水表面接触角>150°,单根棉纤维基材的直径约为μm量级;喷涂的疏水涂层的厚度为纳米量级。
进一步地,上述密封条为将单层编织物逐层堆叠,形成总厚度为5mm疏水纳米纤维垫;再用胶水将纳米纤维垫固定在柜体和柜门的密封接触面上。
进一步地,上述配电柜内设有MCU主控模块、温湿度阈值设定模块、显示模块、温度采集传感器模块、湿度采集传感器模块,以及制冷和除湿驱动模块。
本发明的有益效果:本纳米纤维材料具有超疏水性,可以阻止外界环境中的水气进入密封件;同时纳米纤维还具有密封效果,阻碍外界环境的中的灰尘进入到密封件内部。
其次,上述配电柜内还有MCU,半导体制冷器和除湿器,能够对柜内温、湿度进行自动调节。本发明专利可靠性高,可适用于大部分恶劣极端环境。
附图说明
图1是配电柜的整体结构图;
图2为MCU模块的面板图;
图3是防尘、防水纤维层局部结构图;
图4给出的是配电柜温、湿度控制硬件电路结构图;
图5是温、湿度控制软件流程图。
其中:1-配电柜柜体, 2-散热片, 3-防尘、防水纤维, 4-除湿器, 5-除湿孔, 6-导管, 7-密封圈, 8-MCU(Microcontroller Unit:微控制单元)模块, 9-柜门, 19-铰链。
具体实施方式
以下结合实例和附图对本发明的原理和特征进行描述,所举实例只用于解释本发明,并非用于限定本发明的范围。
参见图1,配电柜内设置有半导体制冷片,半导体制冷片的冷端位于配电柜的内部,而半导体制冷片的热端与散热片2相连,散热片2散射部位位于配电柜的外侧,散热片2对配电柜进行散热。
防尘、防水纤维3只布置于柜体与柜门的接触端面上。当配电柜的柜门关闭时,柜体上的防尘、防水纤维与柜门上的防尘、防水纤维紧密接触。
参见图2,为MCU模块的面板图,其内部的传感器可监测柜内的温度和湿度,并在面板上显示出其温、湿度参数。还具有手动控制按键,对阈值温度和阈值湿度进行设定和修改。
将含SiO2-NPs(二氧化硅纳米颗粒)和疏水化合物异氰酸酯的悬浮液喷涂在棉纤维基材表面上形成疏水纳米纤维。单根棉纤维基材的直径约为μm(微米)量级。喷涂的疏水涂层的厚度为纳米(nm)量级,因此将包含疏水涂层的棉纤维叫疏水纳米纤维。所述纳米纤维与水表面的接触角>150°,因此具有超疏水性。
参见图3,为由疏水纳米纤维纵横交织形成的纤维层局部放大图,将疏水纳米纤维进行编织,再将单层编织物逐层堆叠,形成总厚度为5mm疏水纳米纤维垫。再用502胶水将纳米纤维垫固定在柜体和柜门的密封接触面上。
参见图4,为配电柜温、湿度控制硬件电路结构图,包括MCU主控模块、温湿度阈值设定与显示模块、温度采集传感器模块、湿度采集传感器模块和制冷、除湿驱动模块等。温、湿度的阈值通过温湿度阈值设定与显示模块上的按键设定。MCU采用单片机来进行编程控制。当温湿度超过阈值上限,单片机控制继电器,使其触发,制冷器和除湿器工作;当温湿度超过阈值下限,单片机控制继电器,使其断开,制冷器和除湿器停止工作。制冷、除湿有各自对应的继电器进行通断控制。
单片机选用STC32,温、湿度传感器选用HDC1080,可同时采集环境的温度和湿度值,半导体制冷片选用TEC1-12706,液晶显示器采用1602LCD。单个半导体制冷片选用的TEC1-12706约为100W(瓦),为确保制冷效果好,可增加制冷片的数量。
参见图5,为温、湿度控制的软件流程图,当硬件电路系统上电后,开始对系统进行初始化,进入温、湿度阈值设定程序,可以设定温、湿度的上下阈值。继而分别采集环境的温度和湿度参数。初始判定:若环境温度T≤T0,程序结束,T0叫温度上阈值;若环境温度T>T0,单片机控制继电器开通,制冷器工作。次级判定:若环境温度T>T1,制冷器保持工作,直到T≤T1,T1叫环境的温度的下阈值,且T1≤T0。同理,初始判定:若环境湿度Q≤Q0,程序结束,Q0叫湿度上阈值;若环境湿度Q>Q0,单片机控制继电器开通,除湿器工作。次级判定:若环境湿度Q>Q1,除湿器保持工作,直到Q≤Q1,Q1叫环境的湿度的下阈值,且Q1≤Q0
在具体应用中,给出温、湿度上、下阈值为:T0=55℃,T1=0℃,Q0=80,Q1=30。因为在该温、湿度参数范围,可以保证配电柜内的电子器件可靠、温度地工作。
所述配电柜在不考除湿机与外界接触的情况下,其防护等级可高达IP68。
总之,采用超疏水纳米纤维对配电柜的柜体和柜门进行密封,可以极大地阻隔外界环境中的水气和灰尘进入到柜体内部;另外,在柜体中设有温湿度传感器,当柜体中的温湿度大于阈值时,并启用主动的降温和除湿设备对柜体中的温湿度进行控制。本发明专利可靠性高,制造方便,可适用于大部分恶劣极端环境,以及大规模批量生产。

Claims (8)

1.一种用于密封框体的密封材料,其特征在于,所述密封材料为多层超疏水纳米纤维,所述超疏水纳米纤维是将含SiO2-NPs和疏水化合物异氰酸酯的悬浮液喷涂在棉纤维基材表面而形成的。
2.如权利要求1所述的密封材料,其特征在于,所述纳米纤维的水表面接触角>150°,单根棉纤维基材的直径约为μm量级;喷涂的疏水涂层的厚度为纳米量级。
3.一种包含如权利要求1或2所述的用于密封框体的密封材料制备的密封条,将单层所述纳米纤维编织物逐层堆叠,形成总厚度为5mm疏水纳米纤维垫;再用胶水将纳米纤维垫固定在密封件的密封接触面上。
4.如权利要求3所述的密封条在密封门框上的应用。
5.一种配电柜,其特征在于,所述配电柜设有柜门和其对应的框体,所述柜门和框体设有相对应的密封条,所述密封条由用于密封框体的密封材料制备而成,所述密封材料为多层超疏水纳米纤维,所述超疏水纳米纤维是将含SiO2-NPs和疏水化合物异氰酸酯的悬浮液喷涂在棉纤维基材表面所而形成的。
6.如权利要求5所述的配电柜,其特征在于,所述纳米纤维的水表面接触角>150°,单根棉纤维基材的直径约为μm量级;喷涂的疏水涂层的厚度为纳米量级。
7.如权利要求5所述的配电柜,其特征在于,所述密封条将单层编织物逐层堆叠,形成总厚度为5mm疏水纳米纤维垫;再用胶水将纳米纤维垫固定在柜体和柜门的密封接触面上。
8.如权利要求5所述的配电柜,其特征在于,所述配电柜内设有MCU模块、温湿度阈值设定模块与显示模块、温度采集传感器模块、湿度采集传感器模块,以及制冷和除湿驱动模块。
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