LED lamp having distance formed between sleeve and fins
US10731839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2019 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Nov 25, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED lamp includes: a lamp shell including a lamp head, a lamp neck and a sleeve; a passive heat dissipating element having a heat sink connected to the lamp shell, the heat sink comprises fins and a base; a power source; a light emitting surface connected to the heat sink of the passive heat dissipating element and includes LED chip sets having LED chips; a first heat dissipating channel; a second heat dissipating channel; and a lamp cover connected with the heat sink and having a light output surface and an end surface, the end surface is formed with a vent to let air flow from outside of the LED lamp into both the first heat dissipating channel and the second heat dissipating channel through the vent. A distance is kept between distal ends of the fins and the sleeve, and air exists in the distance between the fins and the sleeve of the lamp shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.