专利名称：BISTABLE ELECTRIC SWITCH发明人：HOUNSGARD H,DK申请号：US3729697D申请日：19711108公开号：US3729697A公开日：19730424
摘要：The invention relates to a bistable electric switch assembly of the type havingan actuating permanent magnet pivotally mounted relative to a central axis and held ineach of its stable positions by two soft iron pole pieces offset from the central plane.The actuating magnet is responsive to an operating permanent magnet arranged to passone of the poles of the actuating magnet and disposed at a right angle relative thereto.Fixed and movable contacts are provided with the movable contact being mounted on anarmature which forms a variable width air gap with one of the pole pieces. A spring biasesthe armature and the movable contact towards an open position. A substantial part ofthe magnetic flux extends across the air gap which sequentially causes closing andopening forces to be exerted on the armature of the movable contact depending on theposition of the permanent actuating magnet.
申请人：DANFOSS AS,DK
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