The invention discloses an automatic
sunlight tracking device. The automatic
sunlight tracking device comprises a first upright post, a second upright post, a rotating shaft, an
electric motor and a
solar cell panel
assembly, wherein the first upright post and the second upright post are arranged in parallel at an interval, the rotating shaft is erected at the top end of the first upright post and the top end of the second upright post, the
electric motor is connected with the rotating shaft, the
solar cell panel
assembly is installed on the rotating shaft, the length of the first upright post is longer than that of the second upright post, the
electric motor is fixedly connected with the second upright post through a reducing motor support, a
sunlight test box
grating groove is connected with the side wall of the top end of the first upright post, a photosensitive element and a controller are installed inside the sunlight test box
grating groove, the controller is connected with the electric motor, a first travel switch is connected with the top end of the second upright post, a second travel switch is connected with the top end of the second upright post, and a position measurement head which contacts with the first travel switch or the second travel switch is connected with the rotating shaft. The automatic sunlight tracking device is simple in structure, reasonable in design, convenient to install, capable of achieving full-
automatic control, saving
electric power and saving costs, convenient to use and operate, low in
electric power consumption, long in service life and convenient to popularize and use.