초록 ▼

An electric switch magnetically activatable including a Hall Effect sensor with a permanent magnet fixed on one side of the sensor and magnetic shielding interposed between the sensor and fixed magnet to direct flux away from the sensor, such that an operating magnet upon movement toward and away fr

An electric switch magnetically activatable including a Hall Effect sensor with a permanent magnet fixed on one side of the sensor and magnetic shielding interposed between the sensor and fixed magnet to direct flux away from the sensor, such that an operating magnet upon movement toward and away from the other side of the sensor cooperates with fixed magnet to produce an increased magnetic field through the sensor to activate the latter.

대표청구항 ▼

A magnetically activated Hall Effect switch of enhanced magnetic sensitivity comprising a Hall Effect digital sensor, a fixed magnet proximate to on side of said sensor, shielding means shielding said fixed magnet from said sensor to prevent activation of the latter by said fixed magnet only, said s

A magnetically activated Hall Effect switch of enhanced magnetic sensitivity comprising a Hall Effect digital sensor, a fixed magnet proximate to on side of said sensor, shielding means shielding said fixed magnet from said sensor to prevent activation of the latter by said fixed magnet only, said shielding means being configured to shield said fixed magnet between the latter and said sensor and leave unshielded a region of said fixed magnet spaced from said sensor, and an operating magnet movable toward and away from the other side of said sensor with opposite poles of said fixed and operating magnets adjacent to each other to activate the sensor, said operating magnet cooperating with said fixed magnet and shielding means to increase the magnetic field through said sensor for activation thereof with said operating magnet at a greater distance from said sensor than possible without said fixed magnet.