Knob assembly and household appliance

The utility model provides a rotary knob assembly and a household electrical appliance, the rotary knob assembly comprises a rotary knob (22) and a decorative cover (21), when the rotary knob (22) isinstalled on the household electrical appliance, the decorative cover (21) is located at the end, away from a shell (10), of the rotary knob (22) and fixed to the rotary knob (22), and the decorativecover (21) is provided with a first limiting piece (211); the first limiting piece (211) penetrates through the rotary knob (22) to enter a shell (10) of the household appliance and is connected withthe shell (10). According to the knob assembly and the household appliance provided by the invention, the installation process of the knob assembly is simplified, the installation efficiency of the knob assembly is improved, and the problem of low assembly efficiency caused by multiple assembly processes of the knob assembly arranged on an existing induction cooker is solved. 本实用新型提供一种旋钮组件和家用电器，旋钮组件包括：旋钮(22)和装饰盖(21)，所述旋钮(22