Light bulb apparatus with heat dissipation and isolation
US11002444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2019 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Nov 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light bulb apparatus has a bulb shell, LED modules, a light source plate, an inner tube and an outer cup. The light source plate has a substrate plate. The substrate plate and the inner tube are made of heat dissipation material like metal material. There is a pressing portion of a lateral side of the substrate plate pressing against an inner side of the inner tube part and there is a spacing portion of the lateral side of the substrate plate not engaging the inner side of the inner tube. The outer cup part has top part and a bottom part. The inner cup is placed inside the top part of the outer cup and pressing against the outer cup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.