Automotive lighting device and method for controlling an element thereof
US11603978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2019 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Dec 5, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S45/47
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automotive lighting device including a light source, a driver arranged to control the operation of the light source, a housing, a desiccant salt and a separating element. The driver includes a driver cover arranged to dissipate the heat generated by the driver. The housing includes a housing wall and a ventilation element located in the housing wall, the ventilation element being configured to allow water vapour to exit the housing. The desiccant salt is arranged in thermal contact with the driver cover. The separating element is provided between the desiccant salt and the light source. A method for controlling the operation of the separating element is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.