Sign up for an Award
Participate with your entry in one of our professional or student awards.
Sign up for an awardLearn more:
Unsupported browser
You are using an outdated browser. Please upgrade your browser to improve your experience.
An electric iron is an indispensable repairing tool for many families and professionals. It can melt the soldering tin on a circuit board in order to fix the diode and conduct electricity.
The welding tip of an ordinary electric iron is usually exposed outside.When we use an electric iron, we might carelessly touch the heating welding tip. In this case, we might suffer from severe scald or even a fire disaster.The welding tip of the safe electric iron doesn’t stretch out unless we hold the handle and pinch the switch. When the electric iron is laid aside,the switch bounces again and the welding tip retracts automatically.
Dalian Minzu University
Dalian, China
Xuefei Liu
Di Fang
Jinghua Guo
Huan Li