Led lamp

Patent metadata

Field	Value
Publication number	US-2018363857-A1
Application number	US-201815989160-A
Country	US
Kind code	A1
Filing date	May 24, 2018
Priority date	Jun 14, 2017
Publication date	Dec 20, 2018
Grant date	—

Abstract

A LED lamp comprises a base, an envelope, a printed circuit board for mounting a plurality of LED chips and a supporting member for supporting the printed circuit board. The envelope has a bottom end coupled with the base. The envelope defines an interior between the base and the envelope, and the printed circuit board is disposed in the interior. The printed circuit board comprises a hollow structure. One end of the supporting member is assembled in the base, the other end of the supporting member is coupled with the printed circuit board. One end of the printed circuit board extends into the base.

First claim

1 . A LED lamp, comprising: a base, an envelope, a printed circuit board for mounting a plurality of LED chips and a supporting member for supporting the printed circuit board; wherein the envelope has a bottom end coupled with the base, the envelope defines an interior between the base and the envelope, the printed circuit board is disposed in the interior, the printed circuit board comprises a hollow structure, one end of the supporting member is assembled in the base, the other end of the supporting member is coupled with the printed circuit board, one end of the printed circuit board extends into the base.

2 . The LED lamp of claim 1 , wherein the printed circuit board comprises a hollowed polyhedron having multiple mounting sides substantially vertical to a surface of the supporting member, and the plurality of LED chips are mounted on the mounting sides.

3 . The LED lamp of claim 1 , wherein the base defines an internal thread, and the supporting member defines a corresponding thread structure for mating with the internal thread of the base.

4 . The LED lamp of claim 1 , comprising a driver circuit integrated on the printed circuit board.

5 . The LED lamp of claim 1 , wherein the supporting member comprises a base portion, a supporting portion extending upwardly from one end of the base portion, and a pair of latch portions at two sides of the supporting portion and extending in the same direction as the supporting portion.

6 . The LED lamp of claim 5 , wherein the printed circuit board is retained between the supporting portion and the latch portions of the supporting member, and the printed circuit board defines a pair of holes for matching with the latch portions of the supporting member.

7 . The LED lamp of claim 1 , wherein the supporting member comprises a base portion, a floor portion within the base portion, at least one pair of holding portions extending upwardly from a top end of the floor portion, at least one pair of guiding portions corresponding to the holding portions and extending downwardly from a bottom end of the floor portion, and the printed circuit board comprises a plurality of projection portions extending from a bottom end of the printed circuit board.

8 . The LED lamp of claim 7 , further comprising a plurality of position holes corresponding to the plurality of projection portions of the printed circuit board and separately provided on the floor portion of the supporting member.

9 . The LED lamp of claim 7 , wherein the at least one pair of holding portions comprise two pairs of internal holding portions positioned at a radially inner portion of the floor portion and two pairs of external holding portions positioned at a radially outer portion of the floor portion, a protrusion is defined between two adjacent internal holding portions in each pair, a driver circuit board is fixed in the guiding portions and the internal holding portions, and the driver circuit board comprises a slot corresponding to the protrusion of the supporting member.

10 . The LED lamp of claim 1 , wherein the supporting member is made of a thermally conductive material, and the supporting member comprises a mounting slot having a shape matching the printed circuit board and configured to accommodate and fix the printed circuit board.

11 . The LED lamp of claim 1 , wherein the supporting member is an integrally formed member.

Assignees

• Ge Lighting Solutions Llc

Inventors

• Ren Xiaojun
• Xiao Kun
• Bao Zhifeng
• Wang Zhiyong
• Zhu Yimin

Classifications

• F21V23/005

  the substrate is supporting also the light source · CPC title

• F21K9/232 Primary

  specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb · CPC title

• F21V29/85

  characterised by the material (liquid coolants F21V29/56) · CPC title

• F21V17/04

  the fastening being onto or by the light source · CPC title

• F21Y2107/30

  on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section · CPC title