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US 10,890,014 B2Granted
Electromagnetic actuator
AssigneeAxtuator Oy
InventorMika Pukari
Life of this patent
Estimating the term…
Abstract
The invention provides a magnetic actuator including at least two magnets. One magnet is a semi hard magnet and the other magnet is a hard magnet. The hard magnet is configured to open or close the magnetic actuator. The semi hard magnet and the hard magnet are placed adjacent to each other. A change in magnetization polarization of the semi hard magnet is configured to push or pull the hard magnet to open or close a digital lock realised with the magnetic actuator. The magnetic actuator of the invention can also be used to realise a valve.
Claims33
A system comprising:
- a magnetic actuator comprising a semi-hard magnet, a hard magnet, and an axle, wherein the magnetic actuator is configured to position a notch of the axle in place for the hard magnet to enter the notch;
- a processor;
- and
- a memory storing a program, which, when executed on the processor, performs an operation, the operation comprising:
- receiving an input from a user interface;
- authenticating the input received from the user interface;
- controlling a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet.
6 more elements
A method for controlling a magnetic actuator comprising a semi-hard magnet and a hard magnet, the method comprising;
- receiving, using a computer processor, an input from a user interface;
- authenticating, using the computer processor, the input received from the user interface;
- controlling, using the computer processor, a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet, wherein the magnetic actuator further comprises a first axle, a second axle and the user interface connected to the first axle, and wherein the semi-hard magnet and the hard magnet are inside the first axle.
2 more elements
A method for controlling flow of fluid through a conduit using a flow control valve comprising a hard magnet, a semi-hard magnet, and a plunger coupled to the hard magnet, the method comprising:
- receiving, using a computer processor, an input from a user interface;
- authenticating, using the computer processor, the input received from the user interface;
- controlling, using the computer processor, a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet and the plunger coupled to the hard magnet, to at least one of allow or restrict flow of the fluid through the conduit, based on the changing the magnetization polarization of the semi-hard magnet to at least one of attract or repel the hard magnet.
2 more elements
A system comprising:
- a magnetic actuator comprising a semi-hard magnet and a hard magnet;
- a processor;
- and
- a memory storing a program, which, when executed on the processor, performs an operation, the operation comprising:
- receiving an input from a user interface;
- authenticating the input received from the user interface;
- controlling a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet, wherein in an open position, the hard magnet is protruded into a notch of an axle.
6 more elements
A system comprising:
- a magnetic actuator comprising a semi-hard magnet and a hard magnet, wherein the magnetic actuator is powered by a mechanical movement of a lever or a knob, or powered by an electronic digital key insertion;
- a processor;
- and
- a memory storing a program, which, when executed on the processor, performs an operation, the operation comprising:
- receiving an input from a user interface;
- authenticating the input received from the user interface;
- controlling a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet.
6 more elements
A system comprising:
- a magnetic actuator comprising a semi-hard magnet and a hard magnet, wherein the magnetic actuator comprises at least one blocking pin that is configured to protrude into a notch of a body of the magnetic actuator to prevent unauthorized actuation of the magnetic actuator in the event of any of the following:
- an external magnetic field is applied, an external hit or impulse is applied, or a first axle is turned too fast;
- a processor;
- and
- a memory storing a program, which, when executed on the processor, performs an operation, the operation comprising:
- receiving an input from a user interface;
- authenticating the input received from the user interface;
- controlling a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet.
7 more elements
A method for controlling a magnetic actuator comprising a semi-hard magnet and a hard magnet, the method comprising;
- receiving, using a computer processor, an input from a user interface;
- authenticating, using the computer processor, the input received from the user interface;
- controlling, using the computer processor, a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet, wherein the magnetic actuator is further configured to position a notch of an axle in place for the hard magnet to enter the notch.
2 more elements
A method for controlling a magnetic actuator comprising a semi-hard magnet and a hard magnet, the method comprising;
- receiving, using a computer processor, an input from a user interface;
- authenticating, using the computer processor, the input received from the user interface;
- controlling, using the computer processor, a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet, wherein the magnetic actuator further comprises a first axle, a second axle, and the user interface, and wherein the hard magnet is configured to be inside first axle to cause a close position of the magnetic actuator, the second axle is configured to not rotate, and the user interface rotates.
2 more elements
A method for controlling a magnetic actuator comprising a semi-hard magnet and a hard magnet, the method comprising;
- receiving, using a computer processor, an input from a user interface;
- authenticating, using the computer processor, the input received from the user interface;
- controlling, using the computer processor, a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet;
- and
- protruding the hard magnet into a notch of an axle to cause an open position of the magnetic actuator.
3 more elements
A method for controlling a magnetic actuator comprising a semi-hard magnet and a hard magnet, the method comprising;
- receiving, using a computer processor, an input from a user interface;
- authenticating, using the computer processor, the input received from the user interface;
- controlling, using the computer processor, a power source to power a magnetization coil to change magnetization polarization of the semi-hard magnet, in response to successful identification of a user, wherein identification information for the user is stored in a database;
- and
- inducing mechanical movement of the hard magnet based on the magnetization of the semi-hard magnet, wherein the magnetic actuator further comprises at least one blocking pin configured to protrude into a notch of a body of the magnetic actuator to prevent unauthorized actuation of the magnetic actuator in the event of any of the following:
- a external magnetic field is applied, an external hit or impulse is applied, or a first axle is turned too fast.
3 more elements
Dependencies are inferred from the claim text.