LED light bulb having filament with conductor partly overlapping with LED chip
US10978624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2019 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Oct 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8513
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED light bulb, comprising: a lamp housing; a bulb base connected to the lamp housing; a stem connected to the bulb base and located in the lamp housing, the stem comprises a stand extending to the center of the lamp housing; a single LED filament, disposed in the lamp housing, the LED filament comprising: a plurality of LED sections, each of the LED sections includes at least two LED chips that are electrically connected to each other by a wire; a plurality of conductive sections, each of the conductive sections is located between the two adjacent LED sections and configured to electrically connect the two adjacent LED sections, each of the conductive section includes a conductor connecting the LED sections, and length of the wire being less than that of the conductor, the conductor comprises joint region and transition regions, the joint region is located between the transition regions and configured to connect the transition regions, each of the transition region has an opening, and the LED chip close to the conductor is disposed in the opening that has three sides opposite to the part of the conductor; two conductive supports, each of the two conductive supports connected wi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.