LED lamp having improved waterproof performance
US8201970B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 21, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Sep 8, 2030 |
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 lamp seat, an illuminant module mounted on the lamp seat, an envelope covering the illuminant module, a waterproof cushion sandwiched between the lamp seat and the envelope and a pressing frame pressing the envelope toward the lamp seat. A plurality of protrusions protrude vertically and downwardly from the pressing frame. Outer faces of sidewalls of the lamp seat slant outwardly and upwardly relative to each other. A plurality of fasteners extend through the protrusions horizontally and are fastened on the sidewalls of the lamp seat, whereby the envelope is urged to tightly press the waterproof cushion toward the lamp seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.