LED filament bulb apparatus
US10605447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Apr 24, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A LED filament bulb apparatus includes a bulb shell, one or more LED strips, a core column, two pluggable sockets, a driver board and a cap. The LED strip is electrically connected to two power lead wires. The core column supports the LED strip. The two power lead wires have bottom ends. The two pluggable sockets respectively receives the two bottom ends. The driver board is used for mounting the two pluggable socket and a driver circuit. The two bottom ends of the two power lead wires are electrically connected to the driver circuit for receiving a driving current generated by the driver circuit from converting an external power source. The cap is fixed to the core column and the bulb shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.