LED tube lamp
US11112068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2020 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Apr 1, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED tube lamp comprises a glass tube, two end caps coupled to a respective end of the glass tube, an LED light strip attached to an inner circumferential surface of the glass tube, a protective layer disposed on a surface of the LED light strip, a plurality of LED light sources mounted on the LED light strip, two first soldering pads arranged at an end of the LED light strip, two notches formed at an edge of the end of the LED light strip, a power supply module configured to drive the plurality of LED light sources. The protective layer comprises two openings to expose the two first soldering pads. The power supply module comprises a printed circuit board comprising two second soldering pads and each of the two first soldering pad soldered to the respective second soldering pad by a solder. The solder is disposed on the first soldering pad, the corresponding second soldering pad and in the corresponding notch. The power supply module comprises a rectifying circuit and a filtering circuit coupled to the rectifying circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.