Electric control reflector capable of changing projection range of projector

The utility model discloses an electric control reflecting mirror capable of changing the projection range of a projector, which relates to the technical field of projector components and comprises a main body and an installation body arranged in the main body, the installation body is connected with a reflecting mirror outer frame, and the reflecting mirror outer frame is connected with a reflecting mirror body; the main body and the mounting body are connected through a first clamping mechanism, so that the mounting body and the main body are detachable, the mounting body and the reflector outer frame are connected through an angle adjusting mechanism, and the angle adjusting mechanism comprises that a first motor is arranged at the upper end of the mounting body. According to the utility model, a convenient butt-joint installation function is provided, the installation body is inserted into the slot in the main body, the front end of the installation body pushes the positioning convex block open, the posit