Patent ID: 7061352

Claim:
A noise-free low-power consumption wide voltage range DC and AC contactor, comprising: a housing including a bottom, a top, and at least a pair of opposite walls extending between said bottom and said top of said housing; a static iron core installed at said bottom of the housing, said static iron core having a longitudinal axis thereof and including a first core leg and a second core leg displaced from said first core leg relative said longitudinal axis; a movable iron core having a fist end and a second end and installed in said housing and reciprocating along said longitudinal axis of said static iron core; a movable copper having two ends and a middle portion, said middle portion being attached to said first end of said movable iron core in proximity to the top of the housing, said movable copper having a movable silver spot disposed on each of said two ends of said movable copper; a stationary copper attached to each wall of said pair of opposite walls of the housing, each said stationary copper having a static silver spot formed thereon, said static silver spot being disposed below said moving silver spot; a spring installed between said second end of the moveable iron core and a bottom of the static iron core along said longitudinal axis thereof; a magnetic coil wound around said first core leg of the static iron core; a retaining coil wound around said second core leg of the static iron core, axes of said magnetic coil and said retaining coil being displaced each from the other relative said longitudinal axis of said static iron core; an integrated circuit coupled between said magnetic and retaining coils; a micro switch operatively coupled to the magnetic coil, said microswitch including a normally closed contact point connected in series with the magnetic coil; and a linkage member having one end and another end and connected by said one end thereof to said movable iron core, said linkage member controlling said microswitch, wherein, when said moveable iron core is attracted towards said bottom of the housing into said static iron core between said magnetic coil and said retaining coil and when respective ones of said movable and static silver spots are brought in contiguous engagement said linkage mechanism engages by said another end thereof said microswitch and opens said normally closed contact point of said microswitch, thereby ceasing the energizing of said magnetic coil and starting energizing said retaining coil through said integrated circuit.