The structure of a tactile switch generally consists of several main parts: housing, contact plate, spring, and trigger button. The outer shell is usually made of plastic or metal to protect the internal structure. Contact pads are key components for connecting circuits. When a button is pressed, electrical connections are made between the contact pads and fixed contacts, thereby completing the circuit. The function of a spring is to provide a reset force for the button, allowing it to return to its original position after release.

In circuits, tactile switches can be used for various purposes. Firstly, it is commonly used to control the switch of power or equipment. For example, in electronic devices, users can turn on or off the device by pressing a touch switch. Secondly, it is also commonly used for mode selection or function switching. Many electronic devices have multiple modes or functions, and users can easily switch between different modes or functions by tapping the switch. In addition, tactile switches are often used in touch sensing systems, such as the touch buttons on smartphone screens, which are a typical application of tactile switches.

In addition to the common uses mentioned above, touch switches can also be customized and applied according to specific needs. For example, in industrial control systems, tactile switches may be integrated into complex control panels for operating and controlling various devices and functions. In automotive electronic systems, touch switches also play an important role in controlling various functions inside the car, such as windows, lights, etc.

Overall, as a simple and practical electronic component, the tactile switch has a wide range of applications. Whether in household appliances, consumer electronics, or industrial and automotive fields, touch switches play an important role in providing convenience and flexibility for circuit control and operation.