News - Micro Switch 2 / 3 Wires For Gas Water Heater

What Is A Water Heater Micro Switch

The water heater micro switch is a quick switch actuated by pressure, also called a sensitive switch. The waterproof micro switch of the water-gas linkage valve of the gas water heater, including the linkage small shaft, the bracket, the micro switch body and the micro switch body are fixed on the bracket. The fork is set on the bracket through a rotating shaft. The bumps on the fork are in contact, the other end of the fork is in contact with the contact point of the micro switch, and the fork part that is in contact with the contact point of the micro switch is designed as a U-shaped structure.

How the micro switch works

Its working principle is that the external mechanical force acts on the action reed through the transmission element (pressing pin, button, lever, roller, etc.), and after the energy is accumulated to the critical point, an instantaneous action is generated, so that the moving contact at the end of the action reed. The point and the fixed contact are quickly connected or disconnected.

When the force on the transmission element is removed, the action reed generates a reverse action force, and when the reverse stroke of the transmission element reaches the action critical point of the reed, the reverse action is completed instantaneously.

The contact distance of the micro switch is small, the action stroke is short, the pressing power is small, and the on-off is fast. The action speed of the moving contact has nothing to do with the action speed of the transmission element.

The micro switch is based on the push pin type, and can be derived from the button short stroke type, the button long stroke type, the button extra large stroke type, the roller button type, the reed roller type, the lever roller type, the short boom type, and the long boom type. and many more.

Micro switches are used in electronic equipment and other equipment in automatic control and safety protection devices that require frequent switching of circuits.

The function of the water heater micro switch is to control the ignition. When the water pressure reaches a certain level, the diaphragm inside will open the micro switch through the transmission shaft. The micro switch sends a signal to the pulse igniter to start discharging and igniting. When the signal is received, the valve is energized and the gas is supplied to start combustion.



Post time: Oct-27-2022