Electric switch

An electric switch, comprising:

• a casing;
• wherein a mounting cavity is provided in the casing;
• and an actuator, a movable contact frame, a snap-action resilient member, a lock mechanism, a contact switch and a signal switch are provided in the mounting cavity;
• the actuator is capable of reciprocating in the mounting cavity along a first direction;
• the movable contact frame is provided with a retaining portion;
• the snap-action resilient member is arranged in the movable contact frame, and is configured to be compressed by the actuator with movement of the actuator;
• the lock mechanism comprises a first lock member and a second lock member;
• and the first lock member and the second lock member are configured to reciprocate in the mounting cavity with the movement of the actuator in a second direction to lock or unlock the retaining portion;
• the signal switch comprises a brush and a circuit board;
• the brush is connected to the actuator, so that the actuator drives the brush to move;
• and the circuit board is arranged on the casing;
• the contact switch comprises a movable contact and a fixed contact;
• the movable contact is arranged on the movable contact frame, and the fixed contact is arranged in the mounting cavity;
• when the actuator is driven to move along the first direction, the first lock member locks the retaining portion, and the second lock member does not lock the retaining portion, and the snap-action resilient member is compressed by the actuator for energy storage;
• when the actuator is driven to continuously move along the first direction, the first lock member unlocks the retaining portion, and the snap-action resilient member produces a snap action to release energy to drive the movable contact frame to move;
• the movable contact is driven to move close to or away from the fixed contact, so that the movable contact is in contact with or separated from the fixed contact, allowing the contact switch to be switched on/off;
• the brush is driven by the actuator to move on the circuit board to switch on/off the signal switch;
• and during the movement of the movable contact frame, the second lock member locks the retaining portion.