Back to results
US 2019/0154206 A1Published application
Led light bulb and led filament thereof
AssigneeJiaxing Super Lighting Electric Appliance Co., Ltd
InventorsTAO JIANG, LIQIN LI
Life of this patent
Estimating the term…
Abstract
An LED light bulb, comprising: a bulb shell; a bulb base connected with the bulb shell to defining a cavity inside the bulb shell, the cavity is filled with air selected from the group consisting of helium and hydrogen, the volume ratio of hydrogen to the overall volume of the cavity is from 5% to 50%; and an LED filament with a plurality of LED chips electrically connected to each other disposed in the bulb shell, at least two conductive supports, disposed in the bulb shell, a driving circuit, electrically connected with the two conductive supports and the bulb base, a stem disposed in the bulb shell, the LED filament is connected with the stem through the conductive supports, and a plurality of supporting arms, connected with and supporting the LED filament.
Claims20
An LED light bulb, comprising:
- a bulb shell;
- a bulb base connected with the bulb shell to such that a cavity is composed inside the bulb shell, the cavity is filled with air selected from the group consisting of helium and hydrogen, the volume ratio of hydrogen to the overall volume of the cavity is from 5% to 50%;
- and
- an LED filament with a plurality of LED chips electrically connected to each other disposed in the bulb shell,
- at least two conductive supports, disposed in the bulb shell,
- a driving circuit, electrically connected with the two conductive supports and the bulb base,
- a stem disposed in the bulb shell, the LED filament is connected with the stem through the conductive supports, and
- a plurality of supporting arms, connected with and supporting the LED filament,
- wherein the stem comprises a stand extending to the center of the bulb shell, the driving circuit comprises a circuit board which is fixed to the bulb base;
- wherein each of the supporting arms comprises a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with stand while the second end of the supporting arms is connected with LED filament, the second end of each of supporting arms has a clamping portion, if LED filament is bent into wavy, the clamping portion clamp at any position between the wave crest and the wave trough;
- wherein the LED filament further comprises:
- at least two conductive electrodes respectively disposed corresponding to the plurality of LED chips, the conductive electrodes being electrically connected with the plurality of LED chips;
- and
- a light conversion coating comprise a top layer and a base layer, the plurality of LED chips and the conductive electrodes are disposed on a conductive foil disposed on the base layer, the conductive foil comprises a plurality of openings;
- wherein the top layer of the light conversion layer of the LED filament is disposed on at least two sides of each of the plurality of LED chips and the conductive electrodes, and exposing a portion of each of the two conductive electrodes to be connected with the bulb base;
- wherein the conductive supports are electrically connected with circuit board and passing through the stand to be electrically connected with the conductive electrodes of the LED filament, the connection between the conductive supports and the conductive electrodes is a mechanical connection or soldering connection, the soldering connection is done by a soldering process with one of a sliver-based alloy, a silver solder, or a thin solder.
13 more elements
An LED light bulb, comprising:
- a bulb shell, the interior of the bulb shell is doped with a golden material or a surface inside the bulb shell is plated a golden yellow thin film,
- a bulb base, connected with the bulb shell,
- at least two conductive supports, disposed in the bulb shell, and
- a driving circuit, electrically connected with the two conductive supports and the bulb base, and
- an LED filament, disposed in the bulb shell, the bulb shell is configured to absorbing some blue light emitted by the LED filament and filled with air selected from the group consisting of helium and hydrogen, the air pressure inside the bulb shell is 0.4 to 1.0 atm,
- a stem disposed in the bulb shell, the LED filament is connected with the stem through the conductive supports, and
- a plurality of supporting arms, connected with and supporting the LED filament,
- wherein the stem comprises a stand extending to the center of the bulb shell, the driving circuit comprises a circuit board which is fixed to the bulb base;
- wherein each of the supporting arms comprises a first end and a second end opposite to the first end of the supporting arms, the first end of each of the supporting arms is connected with stand while the second end of the supporting arms is connected with LED filament, the second end of each of supporting arms has a clamping portion, if LED filament is bent into wavy, the clamping portion clamp at any position between the wave crest and the wave trough;
- wherein the LED filament comprising:
- a plurality of LED chips, electrically connected to each other,
- at least two conductive electrodes, disposed corresponding to the plurality of LED chips, the conductive electrodes being electrically connected with the plurality of LED chips, and
- a light conversion coating comprise a top layer and a base layer, the plurality of LED chips and the conductive electrodes are disposed on a conductive foil disposed on the base layer, the conductive foil comprising a plurality of openings;
- wherein the top layer of the light conversion coating of the LED filament is disposed on at least two sides of each of the plurality of LED chips and the conductive electrodes, and exposing a portion of each of the two conductive electrodes to be connected with the bulb base, and
- wherein the conductive supports are electrically connected with circuit board and passing through the stand to be electrically connected with the conductive electrodes of the LED filament, the connection between the conductive supports and the conductive electrodes is a mechanical connection or soldering connection, the soldering connection is done by a soldering process with one of a sliver-based alloy, a silver solder, or a thin solder.
12 more elements
Dependencies are inferred from the claim text.