Rotary switches for life applications？

Rotary SWITCH is now a relatively common type of Switch in household appliances, many home appliances are controlled by rotary switches, not only more convenient but also effective control of electrical appliances, but also a good helper for home appliances, life applications are also relatively wide, the following we talk about rotary switches mainly in the life of what application?
In addition to the microwave oven switch design using the knob method, this switch is also widely used in the electric fan. As we all know, traditional electric fans need to be rotated to adjust the wind speed, so the rotary switch is an indispensable part of the design of electric fans. Experimental studies have shown that the service life of knob switches far exceeds that of push-button switches, so for these appliances, which are used frequently every day, knob switches are the main way to ensure the service life of the appliance.                                       

For many older people, the impression of rotary switches still remains on some old appliances, such as radios, tape recorders, etc. These appliances were initially designed and manufactured with a rotary switch in mind. These appliances were designed and produced with a large number of rotary switches, which were recognised by the market and won the hearts of users. Nowadays, although these appliances have been slowly phased out, these switching solutions still remain in the design of new appliances. The knob adjustment is the mainstream control mode of the future home appliances, will also be widely used.
The above is an analysis of the application of rotary switches in life.