CN113394429A - 并联式氢燃料电池卡车用散热系统 - Google Patents
并联式氢燃料电池卡车用散热系统 Download PDFInfo
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- 239000002826 coolant Substances 0.000 claims description 6
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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Abstract
本发明涉及氢燃料电池卡车技术领域,公开了一种并联式氢燃料电池卡车用散热系统,包括散热器,散热器存储有冷却液,散热器的出水口分别与第一水泵和第二水泵的进水口连接,第一水泵的出水口与MCU的进水口连接,MCU的出水口与电机的进水口连接,电机的出水口与散热器的进水口连接,第二水泵的出水口与升压DCDC的进水口连接,升压DCDC的出水口分别与空压机和空压机控制器的进水口连接,空压机和空压机控制器的出水口与散热器的进水口连接。本发明并联式氢燃料电池卡车用散热系统,降低了系统冷却液的流动阻力,减少了水泵的负载,且有效提高散热系统的可靠性。
Description
技术领域
本发明涉及氢燃料电池卡车技术领域,具体涉及一种并联式氢燃料电池卡车用散热系统。
背景技术
汽车的大量使用加剧了环境污染及全球变暖等问题,促使人们寻找安全高效的可再生能源。燃料电池作为一种效率高、无污染、可靠性高的能源转换装置,受到了汽车行业的普遍重视。其中,质子交换膜燃料电池具有启动速度快、发电效率高等优点,最适合作为汽车的动力源。
为了保证燃料电池汽车的正常工作,对整车进行有效热管理十分必要。燃料电池卡车的热管理由三部分组成:燃电系统电堆的热管理系统、动力电池的热管理系统、电机电控和燃电系统附件的热管理系统。其中电机电控和燃电系统附件里面的电机、MCU、空压机、空压机控制器、升压DCDC这5大部件在正常工作状态下都会产生大量的热量,设计一套良好的热管理系统能够保证部件的正常运转。
如图2所示,现有技术条件下都是将这5个部件与水泵、散热器串联在一起,这种方案的好处是结构简单,但是由于串联部件太多,系统阻尼过大,需要选用较大功率的水泵,同时水泵的负载过大,导致水泵可靠性降低。
发明内容
本发明的目的就是针对上述技术的不足,提供一种并联式氢燃料电池卡车用散热系统,降低了系统冷却液的流动阻力,减少了水泵的负载,有效提高散热系统的可靠性。
为实现上述目的,本发明所设计的并联式氢燃料电池卡车用散热系统,包括散热器,所述散热器存储有冷却液,所述散热器的出水口分别与第一水泵和第二水泵的进水口连接,所述第一水泵的出水口与MCU的进水口连接,所述MCU的出水口与电机的进水口连接,所述电机的出水口与所述散热器的进水口连接,所述第二水泵的出水口与升压DCDC的进水口连接,所述升压DCDC的出水口分别与空压机和空压机控制器的进水口连接,所述空压机和空压机控制器的出水口与所述散热器的进水口连接。
优选地,所述散热器与第一水泵和第二水泵之间、所述第一水泵与所述MCU之间、所述MCU与所述电机之间、所述电机与所述散热器之间、所述第二水泵与所述升压DCDC之间、所述升压DCDC与所述空压机和空压机控制器之间、所述空压机和空压机控制器与所述散热器之间均通过胶管连接。
本发明与现有技术相比,具有以下优点:
1、降低了系统冷却液的流动阻力,减少水泵的负载,进而提高散热系统的可靠性;
2、由于采用并联的散热管路,冷却液流动阻力降低,选用小功率的水泵即可满足要求,系统能耗更低,更加节能环保。
附图说明
图1为本发明并联式氢燃料电池卡车用散热系统的结构示意图;
图2为现有技术氢燃料电池卡车散热系统示意图。
图中各部件标号如下:
散热器1、第一水泵2、第二水泵3、MCU4、电机5、升压DCDC6、空压机7、空压机控制器8。
具体实施方式
下面结合附图和具体实施例对本发明作进一步的详细说明。
如图1所示,本发明一种并联式氢燃料电池卡车用散热系统,包括散热器1,散热器1存储有冷却液,散热器1的出水口分别与第一水泵2和第二水泵3的进水口连接,第一水泵2的出水口与MCU4的进水口连接,MCU4的出水口与电机5的进水口连接,电机5的出水口与散热器1的进水口连接,第二水泵3的出水口与升压DCDC6的进水口连接,升压DCDC6的出水口分别与空压机7和空压机控制器8的进水口连接,空压机7和空压机控制器8的出水口与散热器1的进水口连接。
其中,散热器1与第一水泵2和第二水泵3之间、第一水泵2与MCU4之间、MCU4与电机5之间、电机5与散热器1之间、第二水泵3与升压DCDC6之间、升压DCDC6与空压机7和空压机控制器8之间、空压机7和空压机控制器8与散热器1之间均通过胶管连接,供冷却液流动。
本实施例中,散热器1的功能是存储冷却液,降低冷却液的温度。
其中,MCU4用来控制电机5转速、转矩,电机5作为整车的动力输出元件,升压DCDC6的作用是输出燃料电堆内产生的电能,空压机7、空压机控制器8的作用是保证燃料电堆内有充足的氧气。
整个散热系统通过第一水泵2和第二水泵3形成并联的两路散热管路。第一水泵2与MCU4、电机5连接形成一个回路,第二水泵3与升压DCDC6、空压机7、空压机控制器8连接形成另外一个回路,两路散热管路共用一个散热器1。
正常工作时:第一水泵2与MCU4、电机5连通,第一水泵2驱动冷却液流经MCU4、电机5,保证MCU5、电机4正常运转,第二水泵3与升压DCDC6、空压机7、空压机控制器8连通,第二水泵3驱动冷却液流经升压DCDC6、空压机7、空压机控制器8,保证升压DCDC6、空压机7、空压机控制器8正常运转。
本发明并联式氢燃料电池卡车用散热系统,降低了系统冷却液的流动阻力,减少水泵的负载,进而提高散热系统的可靠性;当其中一路水泵出现故障时,可切换另外一路水泵工作,保证车辆够利用动力电池里的剩余电能继续行驶至维修服务区域,提升车辆发生故障的应急能力;由于采用并联的散热管路,冷却液流动阻力降低,选用小功率的水泵即可满足要求,系统能耗更低,更加节能环保。
Claims (2)
1.一种并联式氢燃料电池卡车用散热系统,包括散热器(1),所述散热器(1)存储有冷却液,其特征在于:所述散热器(1)的出水口分别与第一水泵(2)和第二水泵(3)的进水口连接,所述第一水泵(2)的出水口与MCU(4)的进水口连接,所述MCU(4)的出水口与电机(5)的进水口连接,所述电机(5)的出水口与所述散热器(1)的进水口连接,所述第二水泵(3)的出水口与升压DCDC(6)的进水口连接,所述升压DCDC(6)的出水口分别与空压机(7)和空压机控制器(8)的进水口连接,所述空压机(7)和空压机控制器(8)的出水口与所述散热器(1)的进水口连接。
2.根据权利要求1所述并联式氢燃料电池卡车用散热系统,其特征在于:所述散热器(1)与第一水泵(2)和第二水泵(3)之间、所述第一水泵(2)与所述MCU(4)之间、所述MCU(4)与所述电机(5)之间、所述电机(5)与所述散热器(1)之间、所述第二水泵(3)与所述升压DCDC(6)之间、所述升压DCDC(6)与所述空压机(7)和空压机控制器(8)之间、所述空压机(7)和空压机控制器(8)与所述散热器(1)之间均通过胶管连接。
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