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Founded in 2005, Dongguan Yinyin Hardware Products Co., Ltd. specializes in: silver contacts, electrical contacts, double composite silver nails, riveted silver contacts, soldered silver contacts, various precision stampings, conductive copper posts, contacts Screws, electrical screws, DC, AC pins, copper sleeves, such as hollow needles, semi-hollow needles, four guides, rivets, silver dots, binding posts, AV copper sleeves, 3F07 copper sleeves, 3F05 copper sleeves, 215 copper sleeves Etc., and the production of various silver, copper, iron, aluminum, non-show steel and other heterosexual products, electricity, mobile phone 13728192869, Mr. Chen
Thanks to the manufacturer of professional silver contacts (in-mold riveting parts), stamping parts, low-voltage switches (wall switches, leakage switches, etc.) that focus on "safety electricity, safety switches, safety electricians"! Thank you for your attention! ! Committed to providing users with the most comprehensive safety power detail service!
Normally open contact: It is in the closed state when the coil is energized, and is in the open state when the coil is powered off.
Normally closed contact: It is in the closed state when the coil is de-energized, and is in the off state when the coil is energized.
Electromagnetic relays are generally composed of a core, a coil, an armature, a contact spring, and the like. As long as a certain voltage is applied to both ends of the coil, a certain current flows in the coil, thereby generating an electromagnetic effect, and the armature will absorb the pulling force of the return spring against the iron core under the action of the electromagnetic force attraction, thereby driving the armature. The moving contact is in contact with the stationary contact (normally open contact). When the coil is de-energized, the electromagnetic suction force also disappears, and the armature returns to the original position at the reaction force of the spring, so that the movable contact is attracted to the original static contact (normally closed contact). This is sucked and released, thereby achieving the purpose of turning on and off in the circuit. For the "normally open, normally closed" contact of the relay, it can be distinguished as follows: a static contact that is in an open state when the relay coil is not energized, called a "normally open contact"; a static contact that is in an on state It is a "normally closed contact".
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