In electric screwdrivers, microswitches play a crucial role as the start button that controls the opening and closing of the electric screwdriver. These switches are usually designed to be very small and sensitive in order to accommodate the compact construction and frequent operation of electric screwdrivers.
Features of microswitches
DC Configuration: As you mentioned, microswitches in electric screwdrivers are usually in a DC configuration, which matches the type of power supply they use. A common configuration such as 5A 24VDC means that the switch is capable of handling up to 5 amps of current at 24 volts DC.
High Sensitivity: Micro switches are named for their tiny contact travel, which usually requires very little force or displacement to activate. This high sensitivity ensures that users can easily and quickly activate electric screwdrivers.
Long life: Due to the high frequency of electric screwdriver use on production lines, microswitches must be able to withstand long, intense operation. As a result, they are often designed for high durability and long life.
Reliability: In a production line environment, where any malfunction can bring production to a standstill, microswitches in electric screwdrivers must be highly reliable. They should be able to work stably in a variety of conditions, including harsh environments such as humidity and dust.
Safety: The safety of power tools is of paramount importance. Microswitches are usually designed to automatically break the circuit under certain conditions to prevent overloads, short circuits and other safety hazards.
Microswitches in Electric Screwdrivers
In an electric screwdriver, the microswitch is mounted in a location that is easily accessible to the user, usually a button or switch handle. When the user presses the button, the contacts of the microswitch close, allowing current to pass through, which starts the motor of the electric screwdriver. When the user releases the button, the contacts break and the motor stops turning.
Additionally, some advanced electric screwdrivers may be equipped with complex control systems that utilize microswitches to trigger various functions such as adjusting torque, changing speed, etc. The realization of these functions usually requires multiple microswitches or other types of sensors to work in concert.
In short, microswitches are an integral part of electric screwdrivers, and their performance directly affects the experience and safety of electric screwdrivers. Therefore, when selecting and replacing microswitches in electric screwdrivers, their performance parameters and reliability requirements need to be fully considered.