摘要
传统电子锁电磁阀作为受力元件时功耗过高,且开锁瞬间电流超出窄带物联网(NB-IoT)模组的许可电流,易导致元件损坏。结合NB-IoT模组承载性能,为光交箱设计一种采用低功耗双滑块联动机构的智能锁。在联动机构中,电磁阀不再作为受力元件,而是作为触发元件,开锁时瞬间通电,开锁后瞬间断电,实现微电流开锁;采用双滑块设计,严格控制行程误差和复位过程,实现短时触发。经评测,在NB-IoT模组供电电压3.3~5 V范围内,电磁阀通电时间由2 s降低至0.40 s以内,开锁峰值电流由300 mA降低至120 mA以内,提升了智能锁的使用寿命和可靠性。
In the traditional electronic lock,the solenoid valve is used as a force component,which consumes too much power,and the instantaneous current of unlocking exceeds the allowable current of Narrow Band Internet-of-Things(NB-IoT)module,which is easy to cause component damage.Combined with the bearing capacity of NB-IoT module,an intelligent lock with low-power consumption and double-slider linkage mechanism is designed for the optical cabinets.In the linkage mechanism,the solenoid valve is no longer used as a force-bearing element,but as a trigger element.When unlocking,the solenoid valve is powered on instantaneously,and the power is cut off immediately after unlocking,as to realize the micro-current unlocking.The double-slider design is adopted to strictly control the travel error and reset process to realize short-time trigger.In the evaluation,in the range of 3.3~5 V supply voltage of the NB-IoT module,the power-on time of solenoid valve is reduced from 2 s to 0.40 s,and the peak current of unlocking is reduced from 300 mA to less than 120 mA,which improves the service life and reliability of the intelligent lock.
作者
丁凡
姚春良
姜杰
DING Fan;YAO Chun-liang;JIANG Jie(Ningbo Shengjiu Cabinet Lock Co.,Ltd.,Ningbo 315423,China)
出处
《工业技术创新》
2020年第5期28-32,共5页
Industrial Technology Innovation
关键词
智能锁
联动机构
光交箱
短时触发
电磁阀
低功耗
Intelligent Lock
Linkage Mechanism
Optical Cabinet
Short-time Trigger
Solenoid Valve
Low-power Consumption
作者简介
通信作者:丁凡(1986-),男,硕士,机械工程师。研究方向:机械设计制造及其自动化。E-mail:ding3fan@163.com。
