公开(公告)号：EP4148530A1

公开(公告)日：2023-03-15

申请号：EP21803646.5

申请日：2021-03-09

申请人： Zheng, Boang

发明人： Zheng, Boang

IPC分类号： G05D27/02

摘要： A positive and negative pressure system and an operation method therefor, and a positive and negative pressure electrical appliance using the positive and negative pressure system. The positive and negative pressure electrical appliance comprises: a positive and negative pressure refrigerator, a positive and negative pressure washing machine, a vacuum dishwasher/fruit and vegetable cleaning machine, a super-oxygenated water washing range hood, a positive and negative pressure oven/fryer/microwave oven, a positive and negative pressure fresh-keeping compartment, a positive and negative pressure fresh-keeping warehouse, and a positive and negative pressure modular cabinet. The technical principle and a basic operation method for the positive and negative pressure system are as follows: regulating airflow with positive and negative pressure, or carrying multiple effective loads such as ozone, an air catalyst, a negative ion, modified atmosphere gas and water for orderly getting in and out of or staying in a positive and negative pressure chamber, and exerting the required effects on objects therein. Accordingly, multiple technologies such as vacuum, high pressure, ozone, catalysts, modified atmosphere fresh-keeping, negative ions, disinfection and purification, humidification and dehumidification, air water production, and low-temperature storage are regulated and integrated by the positive and negative pressure system, and are combined and applied in the positive and negative pressure electrical appliance, so that a respiration function is given to the electrical appliance, existing appliances and traditional technologies are upgraded and updated, and a subdivided field of positive and negative pressure electrical appliances is developed.