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解码T20黑科技:智能电池

2019-11-22 08:57:58 来源:DJI大疆农业 阅读量:21238 评论

导读:大疆农业植保无人飞机 T20 的发布,实现了安全、、上的技术突破。如此的背后究竟隐藏着什么样的黑科技呢?

  【农机网 明星企业
 
  大疆农业植保无人飞机 T20 的发布,实现了安全、、上的技术突破。如此的背后究竟隐藏着什么样的黑科技呢?
 
  前方高能,一波 T20 黑科技来袭。
 
  植保作业当中,电池可谓耗材,如何实现安全与并举?如何降低电池温升?如何减少喷洒成本?
 
  解码 T20 黑科技集
 
  智能电池
 
  T20 电池采用高温化学材料,优化电解液配方,使得电芯高温性能增强,温升减少10℃。相比目前市面上的普通植保机电池仅能承受 45℃ 而言,T20电池可耐受的充电温度高达 55-60℃
 
  另外,T20 智能电池充电倍率由 3C 提升至 3.5C,放电能力提升至 9C(C表示充放电能力)。工作时发热量相比上一代产品降低了 50%。这意味着充放电时电流更大,发热量会更低,减少了电池的冷却时间。T20只需三电两充,就能实现满载循环作业,眼见为实。
 
点击观看T20智能电池循环作业测试
 
  不仅如此,T20 智能电池无需依靠额外装备辅助散热,懂得好风凭借力。利用电池自身的全金属外壳将热量导出,再巧妙借助飞行时的强大风场带走热量,做到 “边飞边散热”。终使得 T20 电池实现落地即充,无需冷却。
 
  为了能够适用于各种严苛环境,如丘陵、山地、果园、高海拔等作业场景,T20 为电芯设计了更大余量的放电电流,大持续输出为 160A。为什么这样设计呢?我们知道飞机爬坡时会耗费力气,设计更大的电流余量,能够支持更多的作业场景。
 
  这就好比一个大极限可以挑 100 斤担子的人,在平路上刚好能挑起 100 斤,但爬坡就不行了。但是如果他是一个可以挑 130 斤的人,那上坡时他也可以轻松挑起 100 斤。然而目前市面上的植保机一般是按照 0海拔高度即普通大田作物模式去设计电流能力,因此无法覆盖更多作业场景。 T20 将带你超越更多可能,实现更多作业场景需求。
 
  T20 的电池循环寿命能够达到保内600 次循环,相比 T16 电池的 400 次,寿命提升 50%,大大降低了用户的作业成本。这主要得益于优化了电芯设计,散热更均衡,能够支持更大倍率充放电,降低温升,有助于提升电池的循环寿命。
 
  长久以来,锂电池就是植保无人机成本的重要组成部分,通过电池循环寿命的提升以及充放电循环时间的减少能够直接降低作业成本。以电池作业一次 8 分钟,作业完成充电大约 15 分钟计算,只需要 3 块电池 2 个充电器即可满足循环作业。
 
  以每次循环作业 25 亩来计算,电池保内循环 600 次,相当于作业750 次(植保机作业一个架次,并未消耗完一整个电池循环,配合合理的电池使用和维护,可作业更多架次)。T20 电池每亩地的成本仅为 2毛1(1块电池4000元÷25亩÷750次作业≈ 0.21元/亩)。
 
  从 0 度的寒冬,飞到 40 度的酷暑,几次材料换代,几十块打样实验田,数万次极限飞行测试,数十万次充放实验,为的就是:要安全,还要长寿命率。
 
  「黑科技」终究要回归推动农业生产工具革新的根本,真正实现藏粮于技,帮助用户增产增效。下期——《喷洒系统》,我们继续解码 T20 的黑科技。
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