Coil heating element with a heat transfer disk
AssigneeHaier US Appliance Solutions, Inc.
InventorPaul Bryan Cadima
Life of this patent
Estimating the term…
Abstract
An electric resistance heating coil assembly includes a spiral wound sheathed heating element having a first coil section and a second coil section. A bimetallic thermostat is connected in series between the first and second coil sections of the spiral wound sheathed heating element. The bimetallic thermostat is spring loaded such that a distal end of the bimetallic thermostat is urged away from a top surface of the spiral wound sheathed heating element. A heat transfer disk is positioned on the bimetallic thermostat at the distal end of the bimetallic thermostat.
Claims20
An electric resistance heating coil assembly, comprising:
- a spiral wound sheathed heating element having a first coil section and a second coil section;
- a bimetallic thermostat connected in series between the first and second coil sections of the spiral wound sheathed heating element, the bimetallic thermostat spring loaded such that a distal end of the bimetallic thermostat is urged away from a top surface of the spiral wound sheathed heating element;
- a shroud;
- a plurality of coil support arms extending from the shroud, the spiral wound sheathed heating element positioned on and supported by the plurality of coil support arms;
- a shroud cover defining a central opening at a top wall of the shroud cover, the bimetallic thermostat mounted to the shroud cover the central opening of the shroud cover, a top of the shroud nested in the shroud cover;
- and
- a heat transfer disk positioned on the bimetallic thermostat at the distal end of the bimetallic thermostat, the heat transfer disk positioned concentrically with a center of the spiral wound sheathed heating element, the heat transfer disk positioned above the shroud cover,
- wherein a diameter of the heat transfer disk is greater than a diameter of the bimetallic thermostat, and the diameter of the heat transfer disk is less than a diameter of the center of the spiral wound sheathed heating element.
An electric resistance heating coil assembly, comprising:
- a spiral wound sheathed heating element having a first coil section and a second coil section;
- a shroud;
- a plurality of coil support arms extending from the shroud, the spiral wound sheathed heating element positioned on and supported by the plurality of coil support arms;
- a shroud cover defining a central opening at a top wall of the shroud cover, the bimetallic thermostat mounted to the shroud cover the central opening of the shroud cover, a top of the shroud nested in the shroud cover;
- a bimetallic thermostat connected in series between the first and second coil sections of the spiral wound sheathed heating element, the bimetallic thermostat spring loaded such that a distal end of the bimetallic thermostat is urged away from a top surface of the spiral wound sheathed heating element;
- and
- a heat transfer disk positioned on the bimetallic thermostat at the distal end of the bimetallic thermostat, the heat transfer disk positioned at a center of the spiral wound sheathed heating element, a ratio of a diameter of the heat transfer disk to a thickness of the heat transfer disk being no less than twenty and no greater than seventy-five, and
- wherein a flange of the heat transfer disk extends downwardly towards the shroud cover.
Dependencies are inferred from the claim text.