Heating element and fluid heater and method for heating fluid
AssigneeKanthal AB
InventorsThomas LEWIN, Pengcheng CAO
Life of this patent
Estimating the term…
Abstract
A heating element comprising first, second, and third regions, and at least three fluid permeable heating panels. The heating element has a 3-dimensional shape which is delimited in part by first and second lateral sides the heating panels extending between the sides. Each of the first, second, and third region is configured to form one phase of a 3-phase electrical load, and wherein either a common electrical conductor connects the first, second, and third regions, to form a star configuration, or first, second, and third electrical conductors each connects two of the first region, the second region, and the third region to form a delta configuration.
Claims19
A heating element for an electric fluid heater, the heating element having an extension along a first axis and comprising a first region, a second region, and a third region, and at least three fluid permeable heating panels,
- wherein each of the at least three fluid permeable heating panels comprises a 3-dimensional structure, the 3-dimensional structure comprising a multitude of members of at least one electrically conductive material,
- wherein within the 3-dimensional structure, the members are connected to each other at nodes,
- wherein the heating element has a 3-dimensional shape which is delimited in part by a first lateral side and an opposite second lateral side, the first and second lateral sides extending substantially in parallel with the first axis and the fluid permeable heating panels extending between the first and second lateral sides,
- wherein the first region comprises a first fluid permeable heating panel of the at least three fluid permeable heating panels, the second region comprises a second fluid permeable heating panel of the at least three fluid permeable heating panels, and the third region comprises a third fluid permeable heating panel of the at least three fluid permeable heating panels,
- wherein each of the first region, second region, and third region is configured to form one phase of a 3-phase electrical load, and
- wherein either a common electrical conductor connects the first, second, and third regions, or a first electrical conductor, a second electrical conductor, and a third electrical conductor each connects two of the first region, the second region, and the third region.
Dependencies are inferred from the claim text.