Floor electric fan capable of automatically regulating speed and cooling

• Main Authors: ZHANG JIANSHENG, ZOU XIYONG
• Format: Patent
• Language: Chinese; English
• Published: 23.11.2021
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The utility model discloses a floor electric fan capable of automatically regulating speed and cooling. The floor electric fan comprises a control module, a sensing module, a power supply module, a motor driving module, a semiconductor refrigeration module, a key module and an LED lamp. Wherein the sensing module converts an infrared signal of a human body into high and low levels which can be identified by the single chip microcomputer and transmits an environment temperature signal to the single chip microcomputer, and the single chip microcomputer controls a switch of the electric fan according to the infrared signal and controls the rotating speed of the electric fan according to the temperature signal. The semiconductor refrigeration module cools air, after the electric fan rotates, negative pressure is generated on the rear portion of the electric fan, and the cooled air is sucked into the electric fan to be blown to a user through the siphon effect. According to the electric fan, the speed can be autom