LED lamp assembly

An LED lamp assembly includes a fixing member with a plurality of LED lamps secured to it from different aspects. The fixing member has a plurality of supporting parts extending outwards from a bottom end thereof and a plurality of holding parts extending outwards from an upper end thereof. Each holding part defines an opening therein. The LED lamps are respectively mounted on the holding parts of the fixing member and each comprise a plurality of LED modules received in an opening of a corresponding holding part and facing toward the supporting parts.

BACKGROUND OF THE DISCLOSURE

1. Field of the Disclosure

The disclosure relates to LED (light emitting diode) lamps and, more particularly, to an LED lamp assembly configured as a floor lamp for a street lighting purpose.

2. Description of Related Art

LED lamps utilize LEDs as a source of illumination. LEDs provide resistance to shock and an almost endless lifetime under specific conditions, making them a cost-effective and high quality replacement for incandescent and fluorescent lamps.

Known implementations of LED modules in LED lamps make use of a plurality of individual LEDs to generate sufficient light with satisfactory distribution. However, the great number of LEDs leads to a more expensive module with higher power consumption, leading to increased heat output, which, if not adequately addressed at additional expense, impacts the LED lamp reliability.

A typical LED lamp incorporates a heat dissipating configuration therein, which can dissipate heat generated by the LEDs in a timely manner. However, to meet requirements of heat dissipation with satisfactory illumination, this type of LED lamp at least requires a heat sink, a cover and a connecting base, thereby complicating structure of the overall device. Accordingly, the LED lamp normally requires mounting in a predetermined way; such as only being held in position by a support of an upper end of a fixing rod, when the LED lamp is used as a floor lamp. Alternatively, the LED lamp can be suspended by a lower end of the fixing rod, whereby the LED lamp is used as a hanging lamp. However, with either position, the lamp incorporated with the fixing rod is usually not easily relocated, and usually permanently installed. Thus, the lamps cannot be used in environments requiring varying placements thereof.

What is needed, therefore, is an LED lamp assembly which can overcome the described limitations.

DETAILED DESCRIPTION OF THE DISCLOSURE

Referring toFIGS. 1-2, an LED lamp assembly in accordance with an exemplary embodiment is illustrated. The LED lamp assembly is configured to be directly placed on floor or ground to provide illumination, and be easily moveable. The LED lamp assembly comprises a fixing member10and a plurality of LED lamps20mounted on a top of the fixing member10.

The fixing member10comprises a plurality of brackets12, two spaced canisters14and a plurality of clips16fastening the brackets12together. The number of brackets12used is consistent with that of the LED lamps20and is three in this embodiment. Each bracket12is formed by two parallel metallic pipes or metallic wires connecting at opposite ends thereof. Each bracket12comprises a vertical part122, a supporting part124extending outwards from a lower end of the vertical part122and a holding part126extending outwards from an upper end of the vertical part122. A plurality of connecting poles1220are located between the two metallic pipes or wires and perpendicularly connected to the two metallic pipes or wires of the vertical part122to strengthen the brackets12. Two spaced connecting plates1222are located between the two metallic pipes or wires and perpendicularly connected to the two metallic pipes or wires of the vertical part122to strengthen the brackets12and secure the canisters14. The two canisters14are surrounded by the vertical parts122of the brackets12and abut corresponding inner sides of the connecting plates1222of the brackets12, receiving relative electronic components such as selenium rectifier or controlling printed circuit board (not shown).

The supporting part124and the holding part126obliquely extend from two opposite ends of the vertical part122respectively and are at an obtuse angle to the vertical part122. The holding part126of each bracket12, formed by a round wire or pipe is rectangular and defines an opening (not labeled) therein receiving the LED lamp20. A plurality of spaced engaging holes1260are defined in a top surface of the holding part126for securing the LED lamp20thereon.

The clips16are divided into two groups (i.e., upper and lower groups) spaced from each other. Each group includes three clips16clasping the brackets12together with each other. Each clip16is integrally formed by bending an elongated metallic sheet and comprises a connecting portion162and two hooks164bent inwardly from two opposite ends of the connecting portion162.

In assembly of the fixing member10, the two spaced canisters14abut the inner sides of the connecting plates1222of the brackets12and are secured to the brackets12by a plurality of screws (not labeled) extending through the connecting plates1222and then into the outer surfaces of the canisters14. The clips16securely fasten every two neighboring vertical parts122of every two brackets12, thus assembling the fixing member10. The supporting parts124of the brackets12extend radially and outwards from the lower ends of the vertical parts122of the brackets12, and are directly placed on a flat floor or ground surface while remaining fully moveable. The holding parts126of the bracket12extend radially and outwards from the upper ends of the vertical parts122of the brackets12, thus enabling the LED lamp20to be mounted thereon to thereby provide a wider illumination area.

Also referring toFIGS. 3-4, each LED lamp20is secured to a corresponding mounting part126of the bracket12and faces downwardly through the opening thereof. Each LED lamp20comprises a heat sink22with a plurality of LED modules24attached to a bottom surface thereof, and a cover26engaging the heat sink22to enclose the LED modules24.

The heat sink22is integrally formed of a material with high heat conductivity such as aluminum or copper and comprises a rectangular base plate222and a plurality of fins224extending upwardly from a top surface thereof. The base plate222is of similar size to the holding part126of the bracket12so as to be stably supported thereon. A plurality of extending holes2220are defined in the base plate222and adjacent to an edge of the base plate222for receiving screws (not shown) extending downwardly therethrough. A plurality of retaining holes2222are defined in a central part of the bottom surface of the base plate222and arranged in parallel lines for fixing the LED modules24on the bottom surface of the base plate222. The fins224are perpendicular to the base plate222and parallel to two opposite longitudinal sides of the base plate222.

The LED modules24are fixed on the bottom surface of the base plate222and arranged side by side. Each LED module24comprises an elongated printed circuit board242and a plurality of LEDs244mounted thereon. A plurality of through holes2420are defined in the printed circuit board242and respectively located between the two adjacent LEDs244, allowing screws (not shown) extending therethrough to engage in the retaining holes2222of the base plate222of the heat sink22to fix the LED modules24to the heat sink22.

The lamp cover26comprises a rectangular frame262, a rectangular lens264mounted on a bottom of the frame262and covering the LED modules24, and an annular engaging flange266extending outwards and horizontally from an upper end of the frame262. The engaging flange266therein defines a plurality of mounting holes2660respectively in alignment with the extending holes2220of the base plate222of the heat sink22.

In assembly of LED lamp assembly, the lamp covers26are respectively placed on the holding parts126of the fixing member10. The frame262of the lamp cover26is snugly received in the opening of the holding part126. The engaging flange266of the lamp cover is supported on the top of the holding part126. The screws respectively extend through the extending holes2220of the heat sinks22and the mounting holes2660of the lamp covers26in sequence, and then into the corresponding engaging holes1260of the holding parts126of the fixing member10to thus securely couple the lamps20to the holding parts126in difference aspects of the fixing member10. The lens264of the lamp covers26extend through the corresponding openings of the holding parts126of the fixing member10and are exposed downwardly. The LED modules24fixed to the bottom surfaces of the base plates222of the heat sinks22are respectively accommodated in the openings of the holding parts126of the fixing member10and surrounded by the holding parts126.

In use, the LED lamps20, facing different aspects of the fixing member10and angling upwardly from the vertical parts122of the fixing member10, can generate light directed to different orientations around the fixing member10to thus evenly provide a broad illuminating area. Since the fixing member10of the LED lamp assembly is easily secured by directly placing the fixing member10on floor or ground, the LED lamp assembly is conveniently moved to any place. Heat generated by the LED modules24in use is quickly adsorbed by the base plate222of the heat sink22, evenly distributed over the fins224, and then dissipated to the exterior.