CN106852104A - 一种用于供电作业的电磁屏蔽车 - Google Patents
一种用于供电作业的电磁屏蔽车 Download PDFInfo
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Abstract
本申请涉及一种用于供电作业的电磁屏蔽车,该电磁屏蔽车包括汽车主体、电磁屏蔽舱、蓄电池、风力发电系统和太阳能发电系统;该电磁屏蔽舱设置在汽车主体上,该电磁屏蔽舱为长方体形状,包括六个舱壁,每个舱壁均由外蒙板、屏蔽体、内蒙板组成,该屏蔽体设置在外蒙板和内蒙板之间,该屏蔽体为一种吸收反射一体的电磁屏蔽体,该屏蔽体整体呈三明治结构,中间设有电磁反射层,在电磁反射层两边设有电磁吸波层。
Description
技术领域
本申请涉及电磁屏蔽车领域,尤其涉及一种用于供电作业的电磁屏蔽车。
背景技术
电磁技术是一把双刃剑,随着科学技术的发展,电磁技术的利用给人类带来了诸多便利,然而,随着大功率、高集成电气化设备的广泛使用,其同样引发了电磁干扰、电磁泄密、电磁污染等一系列问题。目前,电磁屏蔽车中一般设有电磁屏蔽方舱,电磁屏蔽车以其密闭性能、运输灵活性,为供电作业人员提供了很好的保护,然而,现有电磁屏蔽车中电磁屏蔽方舱的电磁防护效果不佳,有待提高。
由于电磁干扰或电磁污染的形成一般需要电磁干扰源、传播路径和敏感设备三个要素,那么对于电磁波的屏蔽,通常做法,都是采用单一的反射型或者吸收型材料来切断电磁波的传播路径,以达到屏蔽的效果。然而,单一屏蔽机制的材料存在诸多缺点,难以满足实际需要。
发明内容
本发明旨在提供一种用于供电作业的电磁屏蔽车,以解决上述提出问题。
本发明的实施例中提供了一种用于供电作业的电磁屏蔽车,该电磁屏蔽车包括汽车主体、电磁屏蔽舱、蓄电池、风力发电系统和太阳能发电系统;该电磁屏蔽舱设置在汽车主体上,风力发电系统和太阳能发电系统与汽车主体和电磁屏蔽舱连接;该太阳能发电系统包括设于电磁屏蔽舱顶部的太阳能光伏板,太阳能光伏板通过光电转换器与蓄电池连接;风力发电系统包括设于电磁屏蔽舱顶部的风力发电机组,风力发电机组通过风电转换器与蓄电池连接;该电磁屏蔽舱为长方体形状,包括六个舱壁,每个舱壁均由外蒙板、屏蔽体、内蒙板组成,该屏蔽体设置在外蒙板和内蒙板之间,该屏蔽体为一种吸收反射一体的电磁屏蔽体,该屏蔽体整体呈三明治结构,中间设有电磁反射层,在电磁反射层两边设有电磁吸波层。
本发明的实施例提供的技术方案可以包括以下有益效果:
本发明的电磁屏蔽车具有太阳能和风能发电系统,为汽车主体及电磁屏蔽舱进行供电,节约能源;在电磁屏蔽舱中,包含有对电磁波进行吸收、反射一体的电磁屏蔽体,该电磁屏蔽体其能够采用反射和吸收的机制对其进行屏蔽,其区别于采用单一吸收机制的吸波材料不能损耗低频率电磁波的缺点,该吸收反射一体的电磁屏蔽体屏蔽频率宽,消除了二次杂波的影响。
本申请附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本申请的实践了解到。应当理解的是,以上的一般描述和后文的细节描述仅是示例性和解释性的,并不能限制本申请。
附图说明
利用附图对本发明作进一步说明,但附图中的实施例不构成对本发明的任何限制,对于本领域的普通技术人员,在不付出创造性劳动的前提下,还可以根据以下附图获得其它的附图。
图1是本发明电磁屏蔽车的结构示意图,
图2是本发明电磁屏蔽舱中舱壁的结构示意图,
图3是本发明电磁屏蔽舱中屏蔽体的结构示意图,
其中,1-汽车主体,2-电磁屏蔽舱,3-蓄电池,4-太阳能光伏板,5-风力发电机组,6-通风窗口,7-蜂窝状滤波板,8-轴流风机,51-外蒙板,52-屏蔽体,53-内蒙板,521-电磁反射层,522-电磁吸波层。
具体实施方式
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
如图1,本申请涉及一种用于供电作业的电磁屏蔽车,该电磁屏蔽车包括汽车主体1、电磁屏蔽舱2、蓄电池3、风力发电系统和太阳能发电系统;该电磁屏蔽舱2设置在汽车主体1上,风力发电系统和太阳能发电系统与汽车主体1和电磁屏蔽舱2连接。
上述的太阳能发电系统包括设于电磁屏蔽舱2顶部的太阳能光伏板4,太阳能光伏板4通过光电转换器与蓄电池3连接;风力发电系统包括设于电磁屏蔽舱2顶部的风力发电机组5,风力发电机组5通过风电转换器与蓄电池3连接。
本申请的电磁屏蔽车,利用风力发电系统和太阳能发电系统,解除了对燃油的依赖,减少了环境污染,同时,风力和太阳能相结合,可以适应不同的天气状况,保证供电。
上述的电磁屏蔽舱2为长方体形状,在电磁屏蔽舱2的左右舱壁上设有通风窗口6,通风窗口6上设有蜂窝状滤波板7,在蜂窝状滤波板7与通风窗口6之间设有金属衬垫;在电磁屏蔽舱2侧壁上设有轴流风机8,轴流风机8的进出线口上设有滤波器,在电磁屏蔽舱2内温度过高或通风不畅时,轴流风机8配合通风窗口6对电磁屏蔽舱2内进行通风散热,滤波器可以对电源线中特定频率的频点或该频点以外的频率进行有效滤波,得到一个特定频率的电源信号达到滤波的作用。
结合图1、图2,该电磁屏蔽舱2包括六个舱壁,每个舱壁均由外蒙板51、屏蔽体52、内蒙板53组成,屏蔽体52设置在外蒙板51和内蒙板53之间,其中,该外蒙板51为钢板,该内蒙板53为铝合金板,该屏蔽体52为一种吸收反射一体的电磁屏蔽体,对于电磁波,其能够采用反射和吸收的机制对其进行屏蔽,其区别于采用单一吸收机制的吸波材料不能损耗低频率电磁波的缺点,该吸收反射一体的电磁屏蔽体屏蔽频率宽,消除了二次杂波的影响。
图3为图2中屏蔽体52的结构示意图,该屏蔽体52整体呈三明治结构,中间设有电磁反射层521,在电磁反射层521两边设有电磁吸波层522,采用该种结构,其屏蔽效果区别于采用单一的反射层或者吸收层,也区别于一层反射层加一层吸收层的结合,当电磁波入射时,电磁反射层中对电磁波既有反射作用也有吸波作用,以反射为主,电磁吸波层中对电磁波既有吸波作用也有反射作用,以吸波为主;并且,在反射层与吸收层的界面,由于界面处的阻抗差异很大,该阻抗突变使得电磁波在界面处的反射增大,从而使得电磁波反射进入电磁吸波层,整体上提高屏蔽效果。
在该屏蔽体52中,所述电磁吸波层522以镁酚醛树脂为基底,填充物为沸石粉、重晶石粉、羰基铁粉、碳纳米管、真空玻璃微珠、纳米二氧化钛,其中,填充物各物质的质量比为:沸石粉6份、重晶石粉5份、羰基铁粉15份、碳纳米管22份、真空玻璃微珠8份、纳米二氧化钛15份。
纳米二氧化钛粒子一般表现为光催化性能,用于光催化自清洁材料,或者用于造纸、橡胶等制品中,作为填充剂、着色剂使用,本申请中,电磁吸波层的填料中添加了纳米二氧化钛粒子,其与其它填充物构成了电磁吸波剂,产生了良好的电磁吸波能力。
在该屏蔽体52中,所述的电磁反射层521以镁酚醛树脂为基底,填充物为铜网片和Fe3O4包二氧化钛粒子,铜网片和Fe3O4包二氧化钛粒子的质量比为7:5;铜网片中,铜网片为80目,规格为5mm×5mm;Fe3O4包二氧化钛粒子中,二氧化钛粒子直径为10μm,Fe3O4包层厚度为500nm。
铜网片为传统的电磁屏蔽材料,具有良好的导电性,依靠电导率传输、消耗和极化发射电磁波达到电磁屏蔽的作用;二氧化钛粒子一般表现为光催化性能,本申请中,在二氧化钛粒子表面包覆了一层磁性的Fe3O4,该Fe3O4包二氧化钛粒子对电磁波具有良好的介电损耗和磁损耗能力,能够增强对电磁波的吸收,作为对电磁波吸收层的补充,增强了对电磁波再次吸收;另一方面,由于Fe3O4包二氧化钛粒子比表面积较大,在电磁反射层的树脂基底中,引入了更多的界面,根据混杂界面散射机理,其能够最大程度的增大电磁波在其中的散射次数,从而增加电磁波的损耗。
在优选地实施方式中,该电磁反射层521的制备过程为:
步骤1,将铜网片裁剪为5mm×5mm,然后将其清洗干净,晾干;
步骤2,量取树脂,选取固含量为60%的镁酚醛树脂,然后加入一半体积的10%丙酮溶液稀释,一边倾倒一边搅拌;
步骤3,将铜网片放置在瓷钵盂中,均匀倒入适量的Fe3O4包二氧化钛粒子,再向钵盂中倒入镁酚醛树脂溶液,一边倾倒一边搅拌直至混合物粘度变大,再倒入少量丙酮溶液;将已经混合均匀的铜网-粒子-树脂体系混合物置于通风厨中,使体系的丙酮和水等液态溶剂挥发,等待80h;
步骤4,将温控箱目标温度调整为180℃,将混合物料分成4cm2的片状后放入模压腔中,整个过程应迅速进行;
步骤5,启动压机并观察压力表,待显示有压力时开始计时,先粗调压力至20MPa,然后通过微调钮较为精确的保持此压力;随着反应的进行,大量挥发性物质排出,此时显示压力会有所下降,应通过微调及时补偿压力,待反应结束后,切断供热电源,仍然保持压力等待样品温度降低后取出样品,即得到电磁反射层521。
电磁吸波层522的制备过程与电磁反射层521近似。
其中,在电磁反射层中,该Fe3O4包二氧化钛粒子的制备过程为:
首先,取20gTiO2粒子,12g NaOH,25ml Fe(CO)5,400ml乙醇胺,30ml水合肼(85%)混合加入到不锈钢反反应釜中,在180℃保温12~15h,自然冷却到室温,得到黑色沉淀,将其清洗干净,烘干后即得到Fe3O4包二氧化钛粒子。
在优选地实施方式中,屏蔽体52中电磁反射层521和电磁吸波层522厚度分别为1.6mm、0.7mm。
由电磁反射层521和电磁吸波层522结合构成屏蔽体52,然后外蒙板51、屏蔽体52、内蒙板53构成电磁屏蔽舱2。
对本申请的电磁屏蔽车进行屏蔽效能测试,当电磁反射层和电磁吸波层中填充物的质量分数不同时,该屏蔽体的屏蔽能力大于10dB时的频率宽度有所差异,如下表:
可以看到,当电磁吸波层522、电磁反射层521中填充物的质量分数分别为45%、60%时,屏蔽能力大于10dB时的频率宽度为14.5GHz,表现为在低频和高频段均有良好的电磁屏蔽能力。
以上所述仅为本发明的较佳方式,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (7)
1.一种用于供电作业的电磁屏蔽车,该电磁屏蔽车包括汽车主体、电磁屏蔽舱、蓄电池、风力发电系统和太阳能发电系统;该电磁屏蔽舱设置在汽车主体上,风力发电系统和太阳能发电系统与汽车主体和电磁屏蔽舱连接;该太阳能发电系统包括设于电磁屏蔽舱顶部的太阳能光伏板,太阳能光伏板通过光电转换器与蓄电池连接;风力发电系统包括设于电磁屏蔽舱顶部的风力发电机组,风力发电机组通过风电转换器与蓄电池连接;其特征在于,该电磁屏蔽舱为长方体形状,包括六个舱壁,每个舱壁均由外蒙板、屏蔽体、内蒙板组成,该屏蔽体设置在外蒙板和内蒙板之间,该屏蔽体为一种吸收反射一体的电磁屏蔽体,该屏蔽体整体呈三明治结构,中间设有电磁反射层,在电磁反射层两边设有电磁吸波层。
2.根据权利要求1所述的用于供电作业的电磁屏蔽车,其特征在于,在电磁屏蔽舱的左右舱壁上设有通风窗口,通风窗口上设有蜂窝状滤波板,在蜂窝状滤波板与通风窗口之间设有金属衬垫;在电磁屏蔽舱侧壁上设有轴流风机,轴流风机的进出线口上设有滤波器。
3.根据权利要求2所述的用于供电作业的电磁屏蔽车,其特征在于,该电磁屏蔽舱中,该外蒙板为钢板,该内蒙板为铝合金板。
4.根据权利要求3所述的用于供电作业的电磁屏蔽车,其特征在于,在该屏蔽体中,所述电磁吸波层以镁酚醛树脂为基底,填充物为沸石粉、重晶石粉、羰基铁粉、碳纳米管、真空玻璃微珠、纳米二氧化钛。
5.根据权利要求3所述的用于供电作业的电磁屏蔽车,其特征在于,在该屏蔽体中,所述的电磁反射层以镁酚醛树脂为基底,填充物为铜网片和Fe3O4包二氧化钛粒子。
6.根据权利要求5所述的用于供电作业的电磁屏蔽车,其特征在于,该电磁反射层的制备过程为:
步骤1,将铜网片裁剪为5mm×5mm,然后将其清洗干净,晾干;
步骤2,量取树脂,选取固含量为60%的镁酚醛树脂,然后加入一半体积的10%丙酮溶液稀释,一边倾倒一边搅拌;
步骤3,将铜网片放置在瓷钵盂中,均匀倒入适量的Fe3O4包二氧化钛粒子,再向钵盂中倒入镁酚醛树脂溶液,一边倾倒一边搅拌直至混合物粘度变大,再倒入少量丙酮溶液;将已经混合均匀的铜网-粒子-树脂体系混合物置于通风厨中,使体系的丙酮和水等液态溶剂挥发,等待80h;
步骤4,将温控箱目标温度调整为180℃,将混合物料分成4cm2的片状后放入模压腔中,整个过程应迅速进行;
步骤5,启动压机并观察压力表,待显示有压力时开始计时,先粗调压力至20MPa,然后通过微调钮较为精确的保持此压力;随着反应的进行,大量挥发性物质排出,此时显示压力会有所下降,应通过微调及时补偿压力,待反应结束后,切断供热电源,仍然保持压力等待样品温度降低后取出样品,即得到电磁反射层。
7.根据权利要求1所述的用于供电作业的电磁屏蔽车,其特征在于,屏蔽体中电磁反射层和电磁吸波层厚度分别为1.6mm、0.7mm。
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