Maintenance-free moisture absorber

The invention belongs to the technical field of transformer accessories, and particularly relates to a maintenance-free moisture absorber. The drying chamber is sleeved with the condensation cover, the condensation cover communicates with the breathing opening, the humidity sensor is arranged on the top of the drying chamber, the fixing frame is arranged on the drying chamber, the control box is arranged on the fixing frame, the controller is arranged in the control box, and the controller is in communication connection with the humidity sensor. The controller is electrically connected with the heating piece, and the silica gel particles are heated through the heating piece. Silica gel particles in the drying chamber are heated, the dehumidification effect can be effectively improved, and the maintenance-free function of the moisture absorber is achieved. 本发明属于变压器配件技术领域，具体涉及一种免维护吸湿器。本发明将冷凝罩套设在干燥室外部，冷凝罩与呼吸口接通，干燥室顶部设有湿度传感器，干燥室上设有固定架，固定架上设有控制箱，控制箱内设有控制器，控制器与湿度传感器通信连接，通过湿度传感器对流经干燥室空气湿度进行检测，控制器与加热片电连接，通过加热片对硅胶颗粒进行