Wind turbine blade with electro-thermal heating element
US11933275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2020 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Nov 6, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2280/6003
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A wind turbine blade comprising an electro-thermal heating element with a tapering width. The electro-thermal heating element comprises: electrically resistive sheet material; a first electrode which is in electrical contact with the sheet material and positioned at a first end of the element; and a second electrode which is in electrical contact with the sheet material and positioned at a second end of the sheet material. An electrically conductive strip extends across a width of the element. The sheet material has a first part on a first side of the strip and a second part on a second side of the strip. The strip is in electrical contact with the first and second parts of the sheet material. The first part of the sheet material has a first width, and the second part of the sheet material has a second width which is different to the first width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.