Methods and apparatus for actuating and deactuating a switching device using magnets
AssigneeHoneywell International Inc.
InventorsMichael P. Farrey, Michael G. Marchini
Life of this patent
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Abstract
An apparatus and method for actuating and deactuating an electro-mechanical switch utilizing an energy-storing actuator is disclosed. An electro-mechanical switch can be configured to include an (internal or external) lever. A first magnet having a first magnetic field thereof is generally located on the (internal or external) lever of the electro-mechanical switch. A second magnet having a second magnetic field thereof is generally located on an energy-storing actuator, such as a bi-metal coil, wherein the second magnetic field of the second magnet opposes the first magnetic field of the first magnet to form an opposing magnetic force thereof in order to actuate and deactuate the electro-mechanical switch.
Claims18
A magnetically-driven snap action switch apparatus, said apparatus comprising:
- an electro-mechanical switch having an operating element;
- a first magnet having a first magnetic field thereof, wherein said first magnet is located on said operating element;
- a second magnet having a second magnetic field thereof located on a slow-moving energy-storing actuator, such that an opposing magnetic force is created when said electro-mechanical switch is at a free position thereof and an attracting magnetic force is created when said electro-mechanical switch is at a full-over-travel point thereof;
- and
- wherein said second magnetic field of said second magnet opposes said first magnetic field of said first magnet to form said opposing magnetic force thereof in order to actuate and deactuate said electro-mechanical switch.
A magnetically-driven snap action switch apparatus, said apparatus comprising:
- an electro-mechanical switch having an operating element, wherein said electro-mechanical switch comprises a switch adapted for use with a mechanical thermostat;
- a first magnet having a first magnetic field thereof, wherein said first magnet is located on said operating element;
- and
- a second magnet having a second magnetic field thereof located on an energy-storing actuator, wherein said energy-storing actuator comprises a bi-metal coil and wherein said second magnetic field of said second magnet opposes said first magnetic field of said first magnet to form an opposing magnetic force thereof in order to actuate and deactuate said electro-mechanical switch.
A magnetically-driven snap action switch apparatus, said apparatus comprising:
- an electro-mechanical switch having an operating element, wherein said electro-mechanical switch comprises a switch adapted for use with a mechanical thermostat;
- a first magnet having a first magnetic field thereof, wherein said first magnet is located on said operating element;
- a second magnet having a second magnetic field thereof located on a slow-moving energy-storing actuator, wherein said slow-moving energy-storing actuator comprises a bi-metal coil and wherein said second magnetic field of said second magnet opposes said first magnetic field of said first magnet to form an opposing magnetic force thereof in order to actuate and deactuate said electro-mechanical switch
- wherein said first magnet and said second magnet resist movement of, and result in the storage of energy in, said slow-moving energy-storing actuator and said operating element and wherein said slow-moving energy-storing actuator and said operating element expend stored energy which results in a rapid change in geometry thereof in response to overcoming said opposing magnetic force between said first magnet and said second magnet, such that thereafter said second magnet moves to a position at which said second magnet attracts said first magnet to said operating element;
- wherein an attractive magnetic force resists the movement of said slow-moving energy-storing actuator resulting in a deflection of said slow-moving energy-storing actuator as said first magnet and said second magnet move with respect to one another;
- and
- wherein said slow-moving energy-storing actuator moves to an original position thereof to create an opposing magnetic force to deactuate said electro-mechanical switch when an attractive magnetic force between said first magnet and said second magnet is overcome.
Dependencies are inferred from the claim text.