Lamp having improved insulation of the circuit unit
US8981636B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2012 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Feb 3, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a lamp: an LED module and a circuit unit for lighting are housed within an envelope composed of a globe and a case; the LED module is attached to an end of an extension member that extends from a mount, which closes an opening at one end of the case, into the globe; the circuit unit is mounted inside the case; an insulation member disposed inside the case ensures insulation between the mount, which is made of metal, and the circuit unit; the insulation member has a bottomed cylinder portion inserted into the mount, and a protrusion portion formed on an outer circumference of the based cylinder portion that protrudes toward an inner surface of the mount; and the insulation member is attached to the mount by the protrusion portion pressing against the inner surface of the mount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.