LED LIGHTING MODULE USING AC POWER

• US 20110043135A1
• Filed: 01/05/2009
• Published: 02/24/2011
• Est. Priority Date: 05/10/2008
• Status: Active Grant

• Current Assignee: STCube, Inc.
• Original Assignee: Hyun-Seop Shim
• Inventors: Shim, Hyun-Seop
• Granted Patent: US 8,632,205 B2
• Time in Patent Office: Days
• US Class Current: 315/294
• CPC Class Codes: H05B 45/395 Linear regulators
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The present invention relates to an LED lighting module using AC power, where an AC-driven LED lighting is implemented by a simplified rectifier circuit and by adjusting the number of LED elements, without using a dedicated circuit configuration such as SMPS, and the LED modules are arranged in a way to enable a multiplicity of unit modules to be driven with a single power supply. The LED lighting module using AC power contains a power supply which receives AC power; unit modules, each having at least two LED sets connected together, each having one LED element or plural interconnected LED elements driven by an input power; and rectifier circuits, each being separately installed to which the power is input, for rectifying AC power which is input through the power supply when a multiplicity of unit modules form a loop.

Claims

1. A LED lighting module using an AC power comprising:

a power supply for receiving an AC power source from outside for use as a driving source for a device;

unit modules, with each unit module consisting of at least two LED sets connected together and each LED set consisting of one LED element or plural interconnected LED elements driven by an input power received from the power supply; and

rectifier circuits, each being separately installed in first and last unit modules to which the power is input, for rectifying AC power which is input through the power supply when a multiplicity of unit modules form a loop, thereby allowing the AC power to serve as a drive power for the LED elements.

2. The LED lighting module as recited in claim 1, further comprising:

a constant-current supply circuit installed between the rectifier circuit of the first unit module and the LED set, thereby allowing a constant current of the power source to be always supplied to the LED set when the rectified AC power is applied to the LED set.

3. The LED lighting module as recited in claim 1, wherein:

each unit module comprises a LED driving part which is a construction to drive the LED elements with a desired voltage by using the rectified power and is configured as a serial connection of the plurality of the LED elements and a resistance in response to the inputted power source.

4. The LED lighting module as recited in claim 3, wherein:

each unit module comprises three pieces of wire having one piece of wire for connecting the LED driving part, which is formed at each unit module, in series through the divided rectifier circuit and two pieces of wire for supplying the AC power to the entire unit modules.

5. The LED lighting module as recited in claim 1, wherein:

a plurality of unit block circuits has at least two unit modules and one rectifier circuit and is electrically connected to each other in parallel, each unit block circuit receiving the AC power from a single power supply to constitute a single LED lighting product.

6. A LED lighting module using an AC power comprising:

a mount having LED elements mounted and arranged thereon;

a LED driving part for receiving an AC power source from outside and providing a desired voltage to each LED element so as to drive the LED elements; and

an angle adjusting part having an axis of rotation protruded from the mount so as to adjust an emitted light at various angles and a pivot loop mounted on a place of an installing surface corresponding to the axis of rotation of the mount so as to allow the axis of rotation to be inserted and rotated therein.

7. The LED lighting module as recited in claim 6, wherein the LED driving part comprises:

unit modules, with each unit module consisting of at least two LED sets connected together and each LED set consisting of one LED element or plural interconnected LED elements driven by an input power received from a power supply; and

rectifier circuits, each being separately installed in first and last unit modules to which the power is input, for rectifying AC power which is input through the power supply when a multiplicity of unit modules form a loop, thereby allowing the AC power to serve as a drive power for the LED elements.

8. The LED lighting module as recited in claim 7, wherein:

in the LED driving part, a plurality of unit block circuits has at least two unit modules and one rectifier circuit and is electrically connected to each other in parallel, each unit block circuit receiving the AC power from a single power supply to constitute a single LED lighting product and the unit modules and rectifier circuits are formed at a single mount or divisionally formed at the plural mounts.

9. The LED lighting module as recited in claim 6, further comprising:

an angle extension lens coupled to an end portion of the LED element and having an extension groove formed at an inside thereof so as to extend an emitting angle of light emitted from the LED element.

10. The LED lighting module as recited in claim 6, wherein:

the pivot loop has an inner circumference longer than a half length of an outer circumference of the axis of rotation and the remaining section of the inner circumference is made of an opened elastic body, thereby allowing the axis of rotation of the mount to be elastically inserted into the pivot loop.

11. The LED lighting module as recited in claim 8, wherein:

at least one latching protrusion is radially formed at the outer circumference of the axis of rotation and a plurality of latching grooves is formed at the inner circumference of the pivot loop, thereby allowing the mount to be rotated at a predetermined angle through the latching reaction thereof.

12. The LED lighting module as recited in, claim 6 wherein:

the pivot loop has a rounded end portion extending to the opening portion so as to insert the axis of rotation therein.