Magnetic knob, household appliance and control method thereof

Abstract

The application relates to the technical field of household appliances, and discloses a magnetic suction knob, a household appliance and a control method thereof. The magnetic suction knob comprises a knob body, a base and an upper cover rotatably connected to the base, a rotating cavity is formed in the knob body, a magnetic fluid, a first electrode and a second electrode, the magnetic fluid is arranged in the rotating cavity, the first electrode and the second electrode are arranged in the rotating cavity, a first magnetic member, the knob body is adsorbed to a mounting panel through the first magnetic member, the first magnetic member can generate a magnetic field, and the magnetic fluid is in the coverage range of the magnetic field, when the upper cover rotates relative to the base, positive ions and negative ions of the magnetic fluid can be gathered on the first electrode and the second electrode under the action of the magnetic field, and an electric current is generated between the first electrode and the second electrode. Through the above design, the knob adjustment has a damping feeling, the experience of a user during use is improved, and the problem of excessive adjustment caused by misoperation can be avoided.

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