| 摘要 |
A filter screen blockage alarm device, an air conditioning device, a dehumidifier, an air purifier and a heating device. The filter screen blockage alarm device comprises an auxiliary temperature sensor (2) arranged on the front side or/and the rear side of a filter screen (1), and further comprises an environment temperature sensor (24) and a processing module which is used for comparing the temperature value monitored by the auxiliary temperature sensor(s) (2) with the temperature value monitored by the environment temperature sensor (24). The auxiliary temperature sensor(s) (2) and the environment temperature sensor (24) are both electrically connected with the processing module. The filter screen blockage alarm device further comprises a notification part which is controlled by the processing module. The notification part is electrically connected with the processing module. The air conditioning device, the dehumidifier, the air purifier and the heating device comprise the filter screen blockage alarm device mentioned above. The filter screen blockage alarm device, the air conditioning device, the dehumidifier, the air purifier and the heating device can determine whether the filter screen (1) is blocked or not accurately and selectively, and the application cost is low. |
