Cabinet fan unit with alarm function

The utility model belongs to the technical field of cabinets, discloses a cabinet fan unit with an alarm function, solves the problems that cabinets in the current market cannot give an alarm in timeand internal equipment cannot be protected, and comprises a cabinet body, a protective cover is fixedly connected to the back face of an inner cavity of the cabinet body, and a fan is arranged in theprotective cover. A silencing box is fixedly connected to the back face of the cabinet body, a rotating motor is fixedly connected to one side of an inner cavity of the silencing box, an output shaftof the rotating motor is fixedly connected with a rotating rod, one end of the rotating rod is fixedly connected with a rotating sleeve, fan blades are equidistantly mounted on the surface of the rotating sleeve, and a temperature detector is mounted at the top of the inner cavity of the cabinet body. According to the cabinet fan unit with the alarm function, the temperature in the cabinet body can be detected and alarmed,