Constant-temperature air bath device and method for detecting temperature controller thereof and testing aging of temperature controller

The invention discloses a constant-temperature air bath device and a method for detecting a temperature controller thereof and testing the aging of the temperature controller. The device comprises an outer box body, an upper cover, a heating cavity and an air feed and discharge mechanism, wherein the outer box body is internally provided with the heating cavity, the side of the outer box body is provided with an air feed and discharge fan, the top part of the outer box body is provided with a control switch, the air feed and discharge mechanism is arranged below the upper cover, the side of the upper cover is provided with an air discharge fan, the side and the upper of the upper cover are respectively provided with a heat-preservation layer, the heating cavity is connected with the outer box body through a supporting column, and the air feed and the discharge mechanism is clung to a protective cover in the heating cavity through a sealing ring. Compared with the prior art, in the invention, the heating cavit