US 10,767,816 B1Granted

Light bulb apparatus

AssigneeXiamen Eco Lighting Co. Ltd.

InventorsChenjun Wu, Chengzong Wu, Hongkui Jiang

Life of this patent

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Abstract

A light bulb apparatus includes a light bulb shell, a bulb head, and a heat sink cup. The heat sink cup has a first end connected to the light bulb shell, and a second end connected to the bulb head. The light bulb apparatus includes a flexible filament and a central support. The flexible filament has a first terminal and a second terminal, and the central support provides a first electrode electrically connected to the first terminal, and provides a second electrode for electrically connected to the second terminal. The light bulb apparatus includes an expanding structure and a driver module. The expanding structure is mechanically coupled to the central support, and includes a plurality of holding portions for holding the flexible filament. The driver module is electrically connected to the bulb head and the central support for providing electrical power to the flexible filament.

Claims19

Dependent claims

A light bulb apparatus, comprising:

a light bulb shell;
a bulb head;
a heat sink cup having a first end and a second end, the first end of the heat sink cup is connected to the light bulb shell, and the second end of the heat sink cup is connected to the bulb head;
a flexible filament for emitting light, the flexible filament has a first terminal and a second terminal;
a central support for providing a first electrode and a second electrode, the first electrode of the central support is electrically connected to the first terminal of the flexible filament, and the second electrode is electrically connected to the second terminal of the flexible filament;
an expanding structure mechanically coupled to the central support, the expanding structure includes a plurality of holding portions for holding the flexible filament, and
a driver module for electrically connected to the bulb head and the central support for providing electrical power to the first electrode and the second electrode of the central support, wherein the expanding structure comprises a plurality of support boards, each of the support boards has a plurality of concave portions as the holding portions to hold the flexible filament.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/439,705Filed 13 Jun 2019 · us provisional application
Priority: 24 Apr 2019
Granted: 8 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

F21K 9/232
Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with…
F21K 9/278
Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes: arrangement or…
F21V 19/003
The light sources being semiconductors devices, e.g. LEDs: fastening of light source holders, e.g. of circuit boards or substrates holding light…
F21V 23/009
Enclosed in a casing: the casing being inside the housing of the lighting device

Family

Application62/838,274Us provisional application · filed 24 Apr 2019
US 10,767,816 B1This patent

From the US filing history. Foreign family members aren’t listed.

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Citations

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