LED lamp
US8388172B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 24, 2011 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | May 4, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED lamp includes a cylindrical tube and two lamp holders fixed on two ends of the cylindrical tube. The cylindrical tube comprises a lampshade, a lamp plate, and a heat dispersing plate. The heat dispersing plate further comprises a base portion and two fastening portions. Two free edges of the base portion comprise two supports extending toward each other. The fastening portions are connected to the supports correspondingly, and the lamp shape and the lamp plate are fixed to the fastening portions correspondingly. Two lamp holders are fixed to opposite ends of the cylindrical tube, and each of the lamp holders comprises a hollow shell and a protrusion formed on an inner wall of the hollow shell. The protrusion resists against one end of the supports to prevent the lampshade from rotating relative to the heat dispersing plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.