Airflow sensor and electronic cigarette

The utility model discloses an airflow sensor and an electronic cigarette. The airflow sensor comprises an external packaging structure, a polar plate, a vibrating diaphragm and a vibrating ring, a mounting cavity is formed in the external packaging structure, and an air inlet communicated with the mounting cavity is formed in the external packaging structure; the polar plate is arranged in the mounting cavity; the vibrating diaphragm is arranged in the mounting cavity, is opposite to the polar plate and is a metal piece; the vibrating ring is arranged on the side, away from the polar plate, of the vibrating diaphragm, and the vibrating diaphragm is electrically connected to the external packaging structure through the vibrating ring. According to the technical scheme, the problem that tobacco tar of the electronic cigarette easily corrodes the vibrating diaphragm can be solved, and the sensitivity of the airflow sensor is guaranteed. 本实用新型公开一种气流传感器和电子烟，气流传感器包括外部封装结构、极板、振膜以及振环；外部封装结构内形成有安装腔，外部封装结构开设有连通安装腔的进气孔