The working principle of the micro -switch: The external force acts on the action reed according to the transmission element (pressing needle, button, lever, roller, etc.). When the action reed is deviated from the critical point, the instantaneous movement is generated. The movement point. When the force in the transmission component moves, the torque spring generates reverse force. When the reverse itinerary of the transmission component reaches the critical point of the torque spring, the reverse effect is immediately completed. The micro -switch has a small contact distance, short action schedule, small power, and fast switch. The speed of its dynamic contact point has nothing to do with the speed of the transmission element.
Types of micro -switch: There are many types of micro -motion switches, with thousands of internal structures, divided into ordinary, small and super small; according to the characteristics of maintenance, waterproof, dustproof, and explosion -proof; according to the division method, there are single connection types. , Dual -connected type and multi -connection type. There is also a micro-switch with a strong openness (when the torque spring of the switch does not work, the opening switch can be broken through the external force); according to the divergence capacity, it is divided into ordinary current, DC current, micro current and large current. According to the different use environment, there are ordinary, heat -resistant (250 ° C) ceramic type (400 ° C) micro switch, -Mimply use no auxiliary distribution attached parts as the basic type, and derives small travel types and large large -scale and large large -scale and large large -scale and large large -scale and large large -scale and large large -scale and large Itinerary type.
You can add different auxiliary press auxiliary tools as needed. Depending on the different electric lamp switches, it can be divided into buttons, spring rollers, leveraged rollers, short -arm, long -arm type, etc. Micro switches perform automatic control and security protection in equipment that must be replaced frequently. It is widely used in electronic equipment, instrumentation, mines, power supply systems, household appliances, electrical equipment, aerospace, aviation, ships, missiles, tanks, etc. National defense field.
At present, the micro -motion machinery in the domestic market ranges from 3W to 1000W according to different application requirements. Generally, 10W, 20W, 50W, 100W, 300W, 500W, 800W bronze, tin bronze, stainless steel wire spring, foreign abroad, foreign abroad ALPS can reach 1000W.
