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US 2015/0091679 A1Published application
Contactless switch
AssigneeContelec AG
InventorRolf BACHMANN
Life of this patent
Estimating the term…
Abstract
A switch includes a button which is connected to a ring-shaped permanent magnet that is magnetized along a z-axis, a guide member made from an non-ferromagnetic material inside which the button and the ring-shaped permanent magnet are arranged so as to be moveable along the z-axis, as well as at least one sensor that has a sensitive area that is arranged inside the ring-shaped permanent magnet and that is configured to measure a change in a magnetic field in the radial direction within a x-y-plane, wherein the x-axis and the y-axis lie orthogonally to the z-axis, respectively.
Claims12
Switch, comprising
- a button (1) which is connected to a ring-shaped permanent magnet (2) that is magnetized along a z-axis,
- a guide member (3) made from a non-ferromagnetic material inside which the button (1) and the ring-shaped permanent magnet (2) are arranged in such a manner as to be moveable along the z-axis, and
- at least one sensor (4, 4a, 4b) that has a sensitive area (41, 41a, 41b) which is arranged inside the ring-shaped permanent magnet and that is configured to measure a change in a magnetic field in the radial direction of a x-y-plane, wherein the x-axis and the y-axis lie orthogonally to the z-axis, respectively.
Dependencies are inferred from the claim text.