Flood lamp assembly having a reinforced bracket for supporting a weight thereof

• US 7,780,318 B2
• Filed: 02/01/2008
• Issued: 08/24/2010
• Est. Priority Date: 02/01/2008
• Status: Expired due to Fees

• Current Assignee: Foxconn Technology Co., Ltd., Fuzhun Precision Industry Company Limited (Foxconn Technology Co., Ltd.)
• Original Assignee: Foxconn Technology Co., Ltd., Fuzhun Precision Industry Company Limited (Foxconn Technology Co., Ltd.)
• Inventors: Xiao, Xu-Hua, Liu, Yi-San, He, Li
• Primary Examiner(s): Choi; Jacob Y
• Assistant Examiner(s): Makiya; David J
• Application Number:
  US12/024,968
• Publication Number:
  US 20090196037A1
• Time in Patent Office: 935 Days
• Field of Search: 362/370, 362/371, 362/249.1, 362/287, 362/427, 362/428, 362/432, 248/200, 248/201, 248/202.1, 248/316.8, 248/292.14, 248/223.21, 248/287.1
• US Class Current: 362/371
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED flood lamp includes an LED lamp and a primary bracket and an accessorial bracket. The lamp includes a pair of lateral sidewalls. The primary bracket pivotally connects with the lateral sidewalls. The accessorial bracket has one end pivotally connecting with one lateral sidewall, and another end connected to the primary bracket via a fastener. Each of the primary and accessorial brackets defines an elongated slot. The fastener is slidable along the slots of the primary and accessorial brackets to vary an illumination angle of the lamp. The LED lamp has a substrate, a plurality of LED modules mounted on a top surface of the substrate and a heat sink mounted on a bottom surface of the substrate, whereby heat generated by the LED modules can be transferred to the heat sink via the substrate to be dissipated to ambient air.

Claims

1. An LED flood lamp assembly comprising:

a lamp having a hermetical chamber and a sidewall surrounding the chamber;

a substrate received in the chamber;

a plurality of LED modules attached to a top surface of the substrate;

a heat sink attached to a bottom surface of the substrate whereby heat generated by the LED modules is transferred to the heat sink via the substrate to be dissipated to ambient air; and

a bracket comprising;

a primary bracket pivotally connecting with the sidewall of the lamp; and

a pair of accessorial brackets each having an end pivotally connecting with the sidewall of the lamp and another end connected to the primary bracket via a fastener, the primary defining two elongated slots and each of the accessorial brackets defining an elongated slot, the fasteners being slidable along the slots;

wherein the lamp rotates between a first position and a second position relative to the bracket by adjusting a position of the fasteners in the slots of the primary and accessorial brackets to vary an illumination angle of the LED modules of the lamp.

2. The LED flood lamp assembly as claimed in claim 1, wherein the primary bracket and the accessorial brackets are movable relative to each other when the lamp rotates.

3. The LED flood lamp assembly as claimed in claim 2, wherein the primary bracket comprises a mounting portion, two connecting portions extending from opposite ends of the mounting portion and two adjusting portions extending from the connecting portions, and each of the adjusting portions has an upper end pivotally engaging with the sidewall of the lamp, and a lower portion defining one of the two slots of the primary bracket therein and connecting with a corresponding accessorial bracket.

4. The bracket as claimed in claim 3, wherein the accessorial bracket and the corresponding adjusting portion of the primary bracket are adapted for connecting with the one of the lateral sidewalls of the lamp to form a triangular configuration to enhance a stability of the bracket.

5. The LED flood lamp assembly as claimed in claim 3, wherein the each of the accessorial brackets comprises an upper end pivotally engaging with the sidewall of the lamp, and a lower portion defining the slot of the each accessorial bracket therein and connecting with the lower portion of the each of the adjusting portions of the primary bracket.

6. The bracket as claimed in claim 5, wherein the slot of the primary bracket is defined in the lower portion of the corresponding adjusting portion of the primary bracket, and the slot of the accessorial bracket is defined in the lower portion of the accessorial bracket, the fastener extending through the slots of the primary and accessorial brackets to assemble the primary and accessorial brackets together.

7. The LED flood lamp assembly as claimed in claim 1 further comprising a reflector received in the chamber of the lamp, and the reflector reflects light emitted by the LED modules to an outside of the lamp.

8. The LED flood lamp as claimed in claim 1 further comprising a transparent cover mounted to the lamp at a location opposite the heat sink and covering the LED modules.

9. An LED flood lamp comprising:

a rectangular housing having two opposite lateral sidewalls;

a substrate received in the housing, a heat sink thermally connecting with a bottom surface of the substrate, an LED module attached to a top surface of the substrate whereby heat generated by the LED module is transferred to the heat sink via the substrate to be dissipated to ambient air;

a bracket unit attached to the housing for supporting the LED flood lamp on a supporting member, comprising;

a primary bracket having a U-shaped configuration with two arms pivotably connected to the two opposite lateral sidewalls of the housing and a pair of accessorial brackets each having an end pivotably connecting with one of the two opposite lateral sidewalls of the housing and another end connecting with one of the two arms of the primary bracket, whereby a position of another end of the each accessorial bracket relative to the primary bracket is variable;

each the arms of the primary bracket defines an elongated slot therein, and each of the accessorial brackets has an elongated slot defined therein, a fastener extending through the two elongated slots to connect the each of the arms and the each of the accessorial brackets together; and

wherein the lamp rotates between a first position and a second position relative to the bracket by adjusting a position of the fasteners in the slots of the primary and accessorial brackets to vary an illumination angle of the LED module of the lamp.