Bells

Electromechanical bells

Electromechanical bells combine electrical power with mechanical action to create an audible signal.

How bells work

Bells are widely used in both domestic and industrial and office applications, due to their reliability and easy installation. Electromechanical bells are preferred due to their simplified design and reliability.

Bell device

One of the main elements in the device of the electromechanical bell is the electric magnet, as well as a lever or hammer, which creates sound when struck. When an electric current passes through a coil, a magnetic field is created, which excites the mechanical part of the bell.

The mechanical part of the bell is a small metal hammer that hits a sound plate or metal dome and reproduces a sound wave.

Circuit and button for a bell

The working structure of the electromechanical bell is relatively simple, but very effective. When an external button connected by a wire is pressed, this closes the electrical circuit that powers the electric magnet. The current passes through the coil of the magnet, which turns it into a magnet and attracts the mechanical element that creates the sound.

When the button is released, the circuit is broken and the magnet loses its strength, and the hammer stops the sound.

Power supply

Electrical mechanical doorbells mainly use low-current electrical installations, which makes them energy-efficient and efficient. They use a supply voltage:

 

• 8VAC
• 8~12VAC
• 8~12VAC
• 110~230VAC

Application of bells

Electromechanical bells are most commonly used in residential and office buildings and are used for indication and notification of entrance doors.

Another main application in industry and industry, which are used as alarm bells, as signaling the completion of a process or informing in the event of an accident. Unlike ordinary ones, they are much louder.