CN100586751C - 利用碳纤维制备的汽车散热器 - Google Patents
利用碳纤维制备的汽车散热器 Download PDFInfo
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Abstract
本发明提供一种利用碳纤维制备的汽车散热器,属于汽车散热器的制备技术。该汽车散热器包括:汽车用散热水套、散热片和一加热组件,该加热组件包括一由极细碳纤维构成的发热丝,在发热丝两端分别设有正、负电源端子,加热组件通过电源开关与电源连接。本发明利用汽车内电气在碳纤维长丝发热体产生800℃~1200℃的热量,将该热量传给散热片,并通过鼓风机将该暖气供给乘客舱内,不需要加热发动机的时间,尤其是严冬汽车温度低时,也能在短时间内提高乘客舱内温度,提供舒适的驾驶环境。本发明适用性强、耗电量小。
Description
技术领域
本发明涉及一种汽车散热器的制备技术,具体是涉及一种利用极细碳纤维或掺入碳纳米管的碳纤维制造的汽车散热器。
背景技术
汽车内通常用水来冷却发动机所产生的热量,传统的汽车用散热器广泛采用的方式是:利用冷却水中所携带的能量供给散热片,并通过鼓风机将热量从散热片向乘客舱供给。采用该方式时,由于启动发动机后需要一个发动机被加热的时间,且通过鼓风机将热量供给乘客舱也需要相当长的时间,尤其是严冬汽车温度低时,需要很长时间才能感受到暖气。作为解决方案,目前高档汽车除了安装散热器,还在散热器前面安装了利用汽车内电气的电加热器,在汽车发动机温度升高到可以供应热风之前,通过鼓风机将电加热器所产生热量供给乘客舱。
但是要构建这种系统,需要重新进行鼓风机线的基础设计和应用设计等来重建符合车型特性的部件装配线,需要耗费大量时间和资金,难以广泛应用。
传统的汽车用散热器和汽车用加热器组件隔开一定距离安装和运行,并根据鼓风机的送风性能将汽车用加热器组件产生的热量供给乘客舱的结构,因变更设计、改造生产线等需要耗费大量时间和资金,很难适用于所有车型,由导电碳粉和粘合剂构成的传统的加热器,因受冲击下的材料容易龟裂、界面电阻增加诱发电弧等,大大降低加热器的使用寿命。
此外,传统的碳粉加热器,由于产生启动电流引起的电气系统负载,不能使产品稳定,不能制造不同形状、不同容量的加热器,因此只能维持极其有限的适用性。
此外,传统的电加热器耗电多,针对以电力为主要动力的电气汽车等,其电气系统设计存在诸多困难,未能给用户带来更多的便利。
发明内容
本发明目的在于解决上述问题,发动机启动后,无需加热发动机的时间,只要启动汽车即可利用汽车内电气在碳纤维长丝发热体产生800℃~1200℃的热量后,将该热量传给散热片,并通过鼓风机将该暖气供给乘客舱内,因此就不需要加热发动机的时间,尤其是严冬汽车温度低时,也能在短时间内提高乘客舱内温度,提供舒适的驾驶环境。
此外,本发明目的在于同时提供机械耐久性和便利性,本发明的设计具有当汽车的发动机冷却水温度低时,利用汽车内电气来补偿发动机冷却水温度的效果,可以部分改善发动机在过冷状态下发动机磨损严重的缺点,当发动机冷却水温度达到适当的送风温度时,通过温控传感装置切断电源,防止冷却水过热。
此外,本发明目的在于解决上述问题,在严冬期汽车温度很低时,需要长时间才能感到暖气的缺点。作为改善方案,目前的高档汽车除了安装散热器,还在散热器前面安置了利用汽车内电气的电加热器,在汽车发动机温度升高到可以供应热风之前,通过鼓风机将电加热器所产生热量供给乘客舱的系统。但是若构建该系统,需重新进行鼓风机线的基础设计和应用设计等重建符合车型特性的部件装配线,需要通过投入大量资金和时间。为解决上述问题,设计散热器一体式加热器系统,不论何种车型,无需改变原有的设计、部件装配线、组装线,只需进行简单的电气设计,并将现有产品按同样尺寸替换安装即可,因此大大节约汽车生产成本,提高汽车供暖效果、适用性强。
此外,本发明目的在于解决上述问题,可防止高温加热器材料表明因受冲击所出现的龟裂、界面电阻增加所诱发的电弧现象,不会因启动电流致使电器系统的超负荷,使产品更加稳定,而且加热器的形状和容量可根据车型或用户需求来设计,适用性强,可以耗电量降至最低,可更有效地应用于以电力为主要动力的设备产业,给用户带来便利。
此外,本发明目的在于,使汽车散热器成为普遍的可选配件,以满足不同消费者的需求。
本发明的上述目的可通过如下的技术方案予以实现:
一种利用碳纤维制备的汽车散热器,包括:汽车用散热水套、散热片和一加热组件,该加热组件包括一由极细碳纤维构成的发热丝,在发热丝两端分别设有正、负电源端子,加热组件通过电源开关与电源连接。
进一步,在发热丝内掺入碳纳米管,该碳纳米管为0.7nm~70nm直径的单壁碳纳米管。
进一步,在发热丝内掺入导电碳粉。
进一步,将由极细碳纤维构成的发热丝装入一壳体内,在壳体两侧分别设有正、负电源端子。
进一步,发热丝为多根极细碳纤维捻成绳束状。
进一步,在发热丝或加热组件壳体的外部包裹一层或多层绝缘层。
进一步,用若干个发热丝替代部分散热片固定在汽车用散热器水套之间。
进一步,加热组件连接一温控器和传感器,该温控器通过传感器控制加热组件的电源开关。
发明的技术效果
向汽车乘客舱内供给暖气的过程不需要加热发动机的时间,尤其是严冬汽车温度低时,也能在短时间内迅速提高乘客舱内的温度,提供舒适的驾驶和乘车环境;其核心技术:可以通过利用单独使用极细碳纤维或者极细碳纤维内掺入碳纳米管所制成的碳纤维发热丝,提高加热器的发热效率来提升产品的品质;只需将现有产品按1∶1替换安装即可,因此不论何种车型,只需进行简单的电气设计即可应用,可以降低汽车生产成本,提高用户满意度,提高企业竞争力;可以制成不同形状、不同容量的加热器,适用性强,可以将耗电量降至最低,可更加有效地应用于以电力为主要动力的设备产业,可通过抢先拥有,也可应用于第二代汽车-电气汽车、氢气汽车的制造最佳产品所需的技术开发,巩固作为掌握核心技术之国的地位,以低廉的价格提供高品质的服务,从而让顾客感动。
附图说明
图1是表示本发明中混用极细碳纤维和碳纳米管制备的发热丝的示意图;
图2是表示本发明中碳纤维长丝发热体结构的示意图;
图3是表示本发明利用碳纤维制备的汽车散热器的示意图;
图4是表示本发明中系统结构的示意图;
图5是表示本发明中极细碳纤维发热丝的示意图。
符号说明
101:极细碳纤维;102:碳纳米管混合物;103:绝缘物层;104:铝板;201:发热丝;202:绝缘物;203:电极插座;204:连接电极板;205:电极连接螺钉;206:电极连接螺母;207:电线;208:电线连接器;301:碳纤维长丝加热组件;302:冷却水入口;303:冷却水出口;304:电源连接插座;305:水套;306:铝制散热片;307:水套通道;308:加热器固定装置;401:用户仪表盘;402:温控器(Temp Controler);404:鼓风机;405:加热器开关(On,Off Heater Switch);406:温度传感器;602:绝缘物防护壳;603:绝缘填充物;605:绝缘物。
具体实施方式
利用本发明汽车散热器,启动发动机后的2~5秒内,碳纤维长丝发热体利用500瓦~1200瓦的汽车电气产生800℃~1500℃的热量,将该热量传给散热片,并通过鼓风机将该暖气供给乘客舱内,因此就不需要加热发动机的时间,尤其是严冬汽车温度低时,也能在短时间内将发动机温度提高到适于驾驶的温度,从而减少发动机磨损;在汽车乘客舱内温度低时,也能在短时间内提高乘客舱内温度,从而提供舒适的驾驶环境。
在此,上述碳纤维长丝加热器组件为,将极细碳纤维或碳纳米管与导电碳混合构成发热丝,或者混用极细碳纤维和碳纳米管混合物制成发热丝,或者混合单壁碳纳米管和导电碳填充入具有一定形状的壳内发热,或者采用将极细碳纤维和碳纳米管和导电碳混合物填充入具有一定形状的壳内的方法,形成以多重复合结构来发热的碳纤维发热丝。
在此,上述碳纤维长丝加热器组件是以直流、交流电(100~240V)为电源的加热器,形成将多根极细碳纤维捻成绳束,连接3~45V的直流电源发热,或者将交流电(100~240V)作为电源发热的复合结构。
在此,由导电碳粉和粘合剂构成的传统的加热器,因受冲击下的容易出现龟裂、界面电阻增加诱发电弧等,降低高温加热器的使用寿命,针对这一点,本发明碳纤维长丝加热器组件为,将200根以上的极细碳纤维单丝按相同的捻向加捻成线股后,以相反的捻向进行复合捻或复捻来确保长丝的外观和耐久性,从而可防止高温加热器因受冲击下的龟裂、界面电阻增加而发生电弧现象,不会因启动电流产生电器系统的过载,使产品更加稳定,可以制成不同形状、不同容量的加热器,适用性强,可以耗电量降至最低,因此可更加有效地用于以电力为主要动力的设备产业。
在此,上述碳纤维长丝加热器组件,为防止发热组件与汽车散热器之间的漏电,通过在内外形成多重绝缘层的多层复合结构来确保绝缘性能。
在此,上述碳纤维长丝加热器组件的长丝连接电极,采用由将单一碳纤维长丝直线连接后,在长丝两端连接正电源端子和负电源端子的结构,或将碳纤维长丝制成U字形,在中间形成绝缘层后,在一端同时形成正电源端子和负电源端子的结构所形成的长丝连接电极形成技术,从而无需变更车辆空调系统的设计,提高适用性。
在此,上述碳纤维长丝加热器组件,在铝制散热片上涂抹焊接活性物质,可提高焊接到水套时的瞬间熔接性能、即使熔焊部位的温度低于铝的熔点也可以焊接,插在汽车用散热器水套之间,并以一定数量的碳纤维长丝加热器组件代替铝制散热片置于应插入散热片的位置后,通过瞬间铝熔焊将铝制散热片和碳纤维长丝发热组件同时焊接到汽车用散热器。
在此,一般来说要想更换一种系统,需要通过投入大量资金和重新进行鼓风机线的基础设计和应用设计等来重建符合车型特性的部件装配线等,需要耗费大量时间。为解决上述问题而设计的散热器一体式加热器系统,无需改变设计、部件装配线、组装线,只需将现有产品按1∶1替换安装即可,因此不论何种车型,只需进行简单的电气设计即可应用,可以节约汽车生产成本,提高用户满意度的效果,适用性强。
下面,结合附图对本发明中技术结构做进一步说明。
图1是表示本发明中混用极细碳纤维和碳纳米管制备的发热丝的示意图;图2是表示本发明中碳纤维长丝发热体结构的示意图;图3是表示本发明利用碳纤维制备的汽车散热器的示意图;图4是表示本发明中系统结构的示意图;图5是表示本发明中极细碳纤维发热丝的示意图。
结合图1、图2、图3说明如下:汽车发动机的冷却水通过散热器的冷却水入口302流入,经过水套305,在水套通道307向铝制散热片306散热后,通过冷却水出口303重新作为发动机的冷却水循环,代替铝制散热片306置于汽车散热器水套通道307之间的碳纤维长丝加热器301,向铝制散热片306和水套通道307传导800~1500℃的热量时,鼓风机404通过送风将热量传导给汽车乘客舱。
在此,发热丝201为,将3000K-6000K粗的极细碳纤维101单独或混合捻成绳束状装入具有一定形状的壳内,以碳纳米管混合物102填充壳和极细碳纤维101之间的缝隙,将其两端含浸于纳米银浆中后,在其外部以绝缘物层103填充入由极细碳纤维101和碳纳米管混合物102形成的碳纤维长丝加热组件301和铝板104之间的缝隙。此外,发热丝201,为了防止由电极插座203所供应电漏电到发热丝201的外部材料铝板104,在发热丝201前面与绝缘物202结合,具有多级通电销形状的电极插座203,以深深插入发热丝201一端的方式与极细碳纤维101结合。
电极插座203以其底面与电极连接螺钉205焊接的状态结合后,其底面再与连接电极板204完全紧密结合,之后以防止连接电极板204与水套305、水套通道307之间的漏电为目的结合绝缘物202,之后通过电极连接螺钉205大小的孔结合电线连接器208,最后电极连接螺钉206与电极连接螺钉205机械结合。
在此,碳纤维长丝加热组件301结构为,以耐机械冲击的金属将其两端用来连接通电端子204的端子208外部包裹起来绝缘后,通过部分焊接及加热器固定装置308来固定于汽车散热器,之后形成用来防止加热组件301和汽车散热器之间通电的电绝缘层202,设置可以接电的连接插座304。
此外,结合图5说明如下:以极细碳纤维长丝101和绝缘物防护壳602与绝缘填充物603紧密结合,或者将极细碳纤维长丝101插入绝缘物防护壳602后,以绝缘填充物603填满缝隙的方式结合,在绝缘物防护壳602外部和铝板104之间再填充耐热绝缘物605,从而完成碳纤维长丝加热组件301。
结合图4说明如下:当汽车用户启动发动机后通过用户仪表盘401使加热器开关405处于打开(ON)状态时,碳纤维长丝加热组件301与接收到电气信号的温控器402通过电线得到连接,温控器402将接收到的电器信号传达给碳纤维加热组件301和温度传感器406,温度传感器406在测量所测到温度和用户仪表盘401所指示温度之差后,启动与温控器402连接的碳纤维加热组件301,达到一定温度时,由温控器402给鼓风机404发送电气信号使其开始工作。
在此,温度传感器根据模拟信号或数字信号或经过预先测量达到目标温度所需的时间后预输入的信号来工作,冷却水温度因发动机的运转升高到用户通过仪表盘输入的温度补偿值以上,即达到碳纤维加热组件301无需工作的温度时,碳纤维加热组件301将加热器开关405切换为关闭(OFF)状态,只有鼓风机404继续工作。
因此,本发明的设计,具有当汽车的发动机冷却水温度低时,利用汽车内电气来补偿发动机冷却水温度的效果,可以改善发动机在过冷状态下发动机磨损严重的缺点,当发动机冷却水温度达到适当的送风温度时,通过温控传感装置切断电源,防止冷却水过热;汽车生产企业无需为构建该系统而通过投入大量资金和重新进行鼓风机线的基础设计和应用设计等来重建符合车型特性的部件装配线,无需改变设计、部件装配线、组装线,因此可以节约汽车生产成本;当发动机冷却水温度达到适当的送风温度时,通过温控传感装置切断电源,防止冷却水过热,同时提供机械耐久性和便利性,从而提高安全性,降低危险性。
此外,本发明即使在严冬汽车温度低时,也无需加热发动机的时间,能在短时间内提高乘客舱内温度,提供舒适的驾驶环境,从而极大提高消费者满意度。
Claims (8)
1、一种利用碳纤维制备的汽车散热器,包括:汽车用散热器水套和散热片,其特征在于:
增加一加热组件,该加热组件:包括一由极细碳纤维构成的发热丝;壳体,所述碳纤维装入到所述壳体中;以及纳米碳管,所述纳米碳管填充在所述发热丝和所述壳体之间的缝隙内,在所述壳体的两端分别设有正、负电源端子,加热组件通过电源开关与电源连接,并且
所述壳体的尺寸确定为与部分散热片一致,使得所述加热组件替代部分散热片固定在汽车用散热器水套之间。
2、如权利要求1所述的利用碳纤维制备的汽车散热器,其特征在于:所述纳米碳管为0.7nm~70nm直径的单壁纳米碳管。
3、如权利要求1或2所述的利用碳纤维制备的汽车散热器,其特征在于:在发热丝内掺入导电碳粉。
4、如权利要求1所述的利用碳纤维制备的汽车散热器,其特征在于:发热丝为多根极细碳纤维捻成绳束状。
5、如权利要求1所述的利用碳纤维制备的汽车散热器,其特征在于:发热丝的极细碳纤维弯曲呈U形,弯曲间隙增设绝缘层。
6、如权利要求1所述的利用碳纤维制备的汽车散热器,其特征在于:在发热丝的外部包裹一层或多层绝缘层。
7、如权利要求1所述的利用碳纤维制备的汽车散热器,其特征在于:在汽车加热组件壳体的外部包裹一层或多层绝缘层。
8、如权利要求1所述的利用碳纤维制备的汽车散热器,其特征在于:加热组件连接一温控器和传感器,温控器通过传感器控制加热组件的电源开关。
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