LED filament lamp

Patent metadata

Field	Value
Publication number	US-10066824-B2
Application number	US-201615185036-A
Country	US
Kind code	B2
Filing date	Jun 17, 2016
Priority date	Jun 19, 2015
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

An LED filament lamp comprises a bulb shell and an LED filament component located inside the bulb shell. The LED filament lamp further comprises a driving board, a lamp holder bulb shell and an inside liner. The inside liner is a bulb shell structure made of insulating material and installed inside the lamp holder bulb shell. At least a part of the driving board is located inside the inside liner to make the driving board and the lamp holder bulb shell separate from each other. The LED filament component is electrically connected to the driving board and the lamp holder bulb shell is electrically connected to the driving board. The LED filament lamp has characteristic of simple structure.

First claim

What is claimed is:

1. An LED filament lamp, comprising:
a bulb shell;
an LED filament component located in the bulb shell;
a driving board, a lamp holder casing and an inside liner;
wherein the inside liner is a shell structure made of insulating material and installed inside the lamp holder casing;
at least a part of the driving board is located inside the inside liner to make the driving board and the lamp holder casing separated from each other;
the LED filament component is electrically connected to the driving board and the lamp holder casing is electrically connected to the driving board; and
the LED filament component further includes a core pillar and a LED filament, wherein a sealed chamber is formed by the bulb shell and the LED filament component.

2. The LED filament lamp of claim 1 , wherein the lamp holder casing comprises a first electric terminal, a second electric terminal and an insulting part installed thereon;
wherein the second electric terminal connects to the first electric terminal through the insulting part;
the driving board further includes a first electrode and a second electrode, and the first electrode and the second electrode are located on the driving board;
the inside liner includes a hole, and the hole is located inside the inside liner; and
the first electrode and the second electrode of the driving board pass through the hole and respectively connect to the first electric terminal and the second electric terminal of the lamp holder casing.

3. The LED filament lamp of claim 2 , wherein the first electric terminal is an annular sidewall;
the inside liner is fixed inside the first electrical terminal;
the first electrode is a conductive wire; and
the first electrode is bent and located between the inside liner and the sidewall of the lamp holder casing, the first electrode is electrically connected with the first electrical terminal.

4. The LED filament lamp of claim 3 , wherein the inside liner is made of deformable material, the inside liner is interference assembled with the lamp holder casing;
at least one convex ring is located in an outside wall of the inside liner;
the whole inside liner is fixed inside the first electric terminal through the convex ring; and
the first electrode is clamped between the convex ring and the first electric terminal.

5. The LED filament lamp of claim 4 , wherein the first electrical terminal includes at least one spiral groove;
wherein two convex rings are fixed on the outside wall of the inside liner; and
wherein a distance between the two convex rings corresponds to a distance between consecutive troughs of the spiral groove.

6. The LED filament lamp of claim 3 , wherein a hooking slot is installed on a wall of the inside liner;
wherein the hooking slot connects with the hole; and
the first electrode passes through the hooking slot.

7. The LED filament lamp of claim 1 , wherein the bulb shell is a transparent or translucent glass bulb shell and is located on the lamp holder casing; and
wherein the lamp holder casing is secured on the bulb shell through welding mud powder.

8. The LED filament lamp of claim 7 ,
gases with a predetermined molecular weight and a predetermined thermal conductivity are filled in the sealed chamber; and
the gases transmit heat generated from the LED filament component to the bulb shell.

9. The LED filament lamp of claim 1 ,
wherein the LED filament includes a transparent substrate and an LED chip is sealed in the transparent substrate.

10. The LED filament lamp of claim 1 , wherein a connecting pillar is located on a core pillar facing to the driving board; and
wherein a connecting part is located on the driving board and is clamped at a bottom of the connecting pillar.

11. The LED filament lamp of claim 1 , wherein
gases with a predetermined molecular weight and a predetermined thermal conductivity are filled in the sealed chamber; and
the gases transmit heat generated from the LED filament component to the bulb shell.

Assignees

• Xiamen Eco Lighting Co Ltd

Inventors

• Wu Feng
• Chen Yunwei
• Wu Minghao
• Li Fuwen

Classifications

• F21V23/003

  the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array · CPC title

• F21Y2101/00

  Point-like light sources · CPC title

• F21V3/0615

  the material diffusing light, e.g. translucent glass · CPC title

• F21Y2107/00

  Light sources with three-dimensionally disposed light-generating elements · CPC title

• F21K9/238

  Arrangement or mounting of circuit elements integrated in the light source · CPC title