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patent

An electromagnetic actuator

Zarate, Juan José  
•
Shea, Herbert  
2018

The present invention concerns an electromagnetic actuator (2) for a haptic display (1). The actuator (2) comprises: a) a first, movable permanent magnetic element (5), the first magnetic element (5) comprising a first latching layer facing side, a second latching layer facing side substantially opposite to the first latching layer facing side, and at least one lateral face between the first latching layer facing side and the second latching layer facing side; b) a shielding element (7) for shielding laterally the first magnetic element (5) to confine a magnetic field generated by the first magnetic element (5); c) a first actuation inductor (12) facing the first latching layer facing side for actuating the first magnetic element (5) and arranged to displace the first magnetic element (5) from a first latching position to a second latching position, or vice versa; d) a first latching layer (13) facing the first latching layer facing side and arranged to attract the first magnetic element (5) for obtaining the first latching position; and e) a second latching layer (15) facing the second latching layer facing side and arranged to attract the first magnetic element (5) for obtaining the second latching position, different from the first latching position.

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Type
patent
EPO Family ID

58644783

Author(s)
Zarate, Juan José  
Shea, Herbert  
Note

Alternative title(s) : (de) Elektromagnetischer aktuator (fr) Actionneur électromagnétique

EPFL units
AVP-R-TTO  
IdentifierCountry codeKind codeDate issued

US10692637

US

B2

2020-06-23

EP3382678

EP

B1

2019-07-31

EP3382678

EP

A1

2018-10-03

US2018277292

US

A1

2018-09-27

Available on Infoscience
December 5, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/163690
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