LIGHT-EMITTING DIODE (LED) LAMP FOR EMITTING LIGHT IN NEARLY ALL DIRECTIONS

• US 20140369034A1
• Filed: 10/16/2012
• Published: 12/18/2014
• Est. Priority Date: 09/24/2012
• Status: Abandoned Application

• Current Assignee: Suzhou Jingpin Optoelectronic Co., Ltd.
• Original Assignee: Suzhou Jingpin Optoelectronic Co., Ltd.
• Inventors: Gao, Ju
• Application Number:
  US14/373,975
• Publication Number:
  US 20140369034A1
• Time in Patent Office: Days
• US Class Current: 362/190
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21V 1/00 Shades for light sources , i.e. lampshades for table, floor, wall or ceiling lamps
• CPC Class Codes: F21V 25/12 Flameproof or explosion-proof arrangements
• CPC Class Codes: F21Y 2107/30 on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light-emitting diode lamp for emitting light in nearly all directions has a lamp holder, an LED power supply, a cylindrical surface-mounted device (SMD) LED light source, a lamp shade, a metal connecting piece, a metal radiator and a flame-retardant plastic connecting piece. The LED light source is fixed in the flame-retardant plastic connecting piece; an upper portion of the flame-retardant plastic connecting piece is mechanically fixed with the lamp holder and a lower portion is mechanically fixed with the lamp shade through the metal radiator; one end of the metal connecting piece is fixed with the metal radiator and the other end is extended into the lamp shade; the cylindrical SMD LED light source is adhered to an outer side surface of a portion of the metal connecting piece extended into the lamp shade; and the lamp holder.

Claims

1. A light-emitting diode (LED) lamp for emitting light in nearly all directions, comprising a lamp holder (1), an LED power supply (2), a cylindrical surface-mounted device (SMD) LED light source (3), a lamp shade (4), a metal connecting piece (5), a metal radiator (6) and a flame-retardant plastic connecting piece (7), wherein the LED power supply (2) is fixed in the flame-retardant plastic connecting piece (7);

an upper portion of the flame-retardant plastic connecting piece (7) is mechanically fixed with the lamp holder (1) and a lower portion is mechanically fixed with the lamp shade (4) through the metal radiator (6);

one end of the metal connecting piece (5) is fixed with the metal radiator (6) and the other end is extended into the lamp shade (4);

the cylindrical SMD LED light source (3) is adhered to an outer side surface of a portion of the metal connecting piece (5) extended into the lamp shade (4); and

the lamp holder (1), the LED power supply (2) and the cylindrical SMD LED light source (3) are in circuit connection.

2. The LED lamp for emitting light in nearly all directions according to claim 1, wherein the cylindrical SMD LED light source (3) includes a rectangular flexible circuit board (31) and a round circuit board (32);

a printed circuit (33) is arranged on both the rectangular flexible circuit board (31) and the round circuit board (32);

an LED bonding region is disposed on the printed circuit (33);

SMD LED (34) are arranged on the LED bonding region;

the rectangular flexible circuit board (31) is curved inwards and fixed into a cylindrical shape; and

the round circuit board (32) is fixed on a bottom end surface of the cylindrical shape.

3. The LED lamp for emitting light in nearly all directions according to claim 2, wherein a central portion of the round circuit board (32) may be provided with a through hole (35).

4. The LED lamp for emitting light in nearly all directions according to claim 2, wherein after the rectangular flexible circuit board (31) is curved inwards, connected sides are fixed by welding, sewing or clamps;

and connected sides between the round circuit board (32) and the rectangular flexible circuit board (31) are fixed by welding, sewing, screws, rivets or clamps.

5. The LED lamp for emitting light in nearly all directions according to claim 2, wherein the LED bonding regions are in series or parallel connection through the arrangement of the printed circuits (33).

6. The LED lamp for emitting light in nearly all directions according to claim 2, wherein the rectangular flexible circuit board (31) is adhered to a side surface of the metal connecting piece (5);

and the round flexible circuit board (32) is adhered to a bottom surface of the metal connecting piece (5).

7. The LED lamp for emitting light in nearly all directions according to claim 2, wherein the rectangular flexible circuit board (31) and the round circuit board (32) are adhered to outer side surfaces of the metal connecting piece (5) by heat-conductive adhesive materials.

8. The LED lamp for emitting light in nearly all directions according to claim 2, wherein the SMD LED (34) are fixed on the LED bonding regions by reflow soldering, laser welding, eutectic soldering or electrical heating.

9. The LED lamp for emitting light in nearly all directions according to claim 8, wherein the lamp beads (34) are SMD lamp beads.

10. The LED lamp for emitting light in nearly all directions according to claim 1, wherein the metal radiator (6) includes an annular ring member and a plurality of side rods;

the side rods are uniformly arranged on the outside of the annular ring member;

waist portions of the side rods are fixed with an outer side surface of the annular ring member;

there are gaps among the side rods;

the flame-retardant plastic connecting piece (7) is disposed above the annular ring member;

the lamp shade (4) is disposed below the annular ring member;

one end of the metal connecting piece (5) is fixed in a hole in the middle of the annular ring member and the other end is extended into the lamp shade (4);

portions below the waist portions of the side rods are fixed with the lamp shade (4); and

portions above the waist portions are fixed with the flame-retardant plastic connecting piece (7).

11. The LED lamp for emitting light in nearly all directions according to claim 1, wherein the metal connecting piece (5) is a solid rod or a tubular structure.

12. The LED lamp for emitting light in nearly all directions according to claim 1, wherein the metal radiator (6) and the metal connecting piece (5) are made of aluminum or copper.

13. The LED lamp for emitting light in nearly all directions according to claim 1, wherein surfaces of the metal radiator (6) and the metal connecting piece (5) are subjected to anodizing and coating or provided with slotted holes.

14. The LED lamp for emitting light in nearly all directions according to claim 1, wherein the flame-retardant plastic connecting piece (7) is made of flame-retardant polycarbonate (PC) materials or flame-retardant heat-conductive PC materials.

15. The LED lamp for emitting light in nearly all directions according to claim 1, wherein there is a gap between an upper end of the cylindrical SMD LED light source (6) and an opening portion of the lamp shade (4);

and a lower end of the cylindrical SMD LED light source (6) is level to the bottom of the metal connecting piece (5).

16. The LED lamp for emitting light in nearly all directions according to claim 1, wherein the lamp shade (4) and the metal radiator (6) are fixedly connected by colloids, threads, lock catches, spring pressure and the like.

17. The LED lamp for emitting light in nearly all directions according to claim 1, wherein the lamp shade (4) is made of transparent or light-transmitting glass, plastics or resin materials.

18. The LED lamp for emitting light in nearly all directions according to claim 1, wherein a surface of the lamp shade (4) is subjected to atomization or multi-reflecting-surface treatment.

19. The LED lamp for emitting light in nearly all directions according to claim 1, wherein the lamp holder (1) is a standard lamp holder.