Mechanical Buzzer Structure- What is a Electromechanical Buzzer ?

Mechanical Buzzer Structure- What is a Electromechanical Buzzer ?

Mechanical (or electromechanical) buzzer produces sound using an electromagnet to rapidly vibrate a metal armature or reed, creating a distinct low-pitch buzz. These devices are commonly used in appliances, timers, and alarms due to their reliability, though they consume more power and are generally quieter than piezo alternatives.

Mechanical buzzers generally consist of a vibrating shell and a plastic diaphragm. (The plastic diaphragm is installed and fixed on the casing), coil, iron core bracket, magnet, percussion spring piece (the magnet is fixed on the reed with glue), oscillation circuit board. When the mechanical buzzer is powered on, the oscillation circuit passes through the coil, and the iron core bracket attracts the percussion reed to strike the plastic diaphragm on the housing to produce sound.

Key Features and Details:
Mechanism: Uses an electromagnetic coil to attract a metal diaphragm/tab repeatedly.
Usage: Ideal for applications like washing machines, kitchen timers, and industrial alarms.
Power: Typically operates on DC voltage.
Specifications: Can range in sound level, often around 75dB to 95dB.