Patent Publication Number: US-2011058376-A1

Title: LED illumination device capability of increasing brightness of illumination

Description:
FIELD OF THE INVENTION 
     The present invention relates to an LED illumination device capability of increasing brightness of illumination, and in particular to an LED lamp capable of assembling conveniently 
     DESCRIPTION OF THE RELATED ART 
     Since light emitting diodes (LEDs) feature the high brightness, power saving and long life expectancy advantages, they have been used extensively for the illumination of lamps. Several LED lamps are usually connected to form an LED lamp set, and the position of each lamp can be adjusted to achieve an illumination effect to meet the requirements for a large projecting area and a high brightness. These LED lamp sets are used as illuminating devices indoors and outdoors. However, it is necessary to plan the LED lamps and the layout of different projecting areas, so as to differentiate the projecting area for each LED lamp with a different distance from the LED lamp and the projecting area, and prevent an uneven brightness of the light projected from the LED lamps onto the projecting areas. Therefore, it is an important subject for manufacturers in the related field to design an LED lamp with good directionality and even brightness. 
     As is generally known in the art, use has been made of varying kinds of illumination lamps for lightening or illuminating objects at night or indoors. Such illumination lamps are supplied with electric energy from a power source and convert the electric energy to light energy, thereby producing a beam of light for illumination. Typical examples of the illumination lamps include a glow lamp and a fluorescent lamp. 
     Widely used in recent years is a Light Emitting Diode (LED) illumination lamp that has a benefit of providing illumination of different colors, although higher in price than the typical lamps referred to above. However, the LED illumination lamp poses a drawback in that it tends to be heated up and shows decreased efficiency when used for more than a predetermined time period. Use of the LED lamp for a prolonged period of time may result in excessive heat generation, thus shortening the life span of the lamp. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide an LED illumination device capability of increasing brightness of illumination. 
     To achieve the above-mentioned object, the present invention includes a heat sink base, an LED illumination module and a transparent board. The heat sink base has a bottom board and two reflector boards arranged at the both side of the bottom to form an accommodating space, which has an open end. The LED illumination module is arranged at the bottom board of the heat sink base, and is located within the accommodating space. The transparent board is mounted at the open end of the accommodating space to cover the accommodating space of the heat sink base. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a cross-sectional view of assembly drawing of an LED illumination device capability of increasing bright of illumination of the present invention 
         FIG. 2  is a cross-sectional of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring to  FIG. 1-FIG .  2 , an LED illumination device capability of assembling conveniently of the present invention includes a heat sink base  10 , an LED illumination module  20  and a transparent board  40 . Wherein 
     The heat sink base  10  has a bottom board  16  and two reflector boards  18  located on the both sides of the bottom board  16  to form an accommodating space  20 , which has an open end  22 . The bottom board  16  is formed with a cavity  24  and a plurality of heat sink sheets  25  opposite to the cavity  24 , wherein the two reflector boards  18  are extended inclined outwardly from the cavity  24  of the bottom board  16 , and is formed with correspond to guide slot  26 , the external side of the two reflector boards  16  are formed with reinforcement board  30  individually. 
     The LED illumination module  12  has a print circuit board  34  and a plurality of LED  36  mounted on the print circuit board  34 , wherein the print circuit board  34  is located within the cavity  24  of the bottom board  16  of the heat sink base  10 . 
     The transparent board  14  is inserted within the guide slot  28  of the two reflectors  18  to cover the open end  22  of the accommodating space  20  for encapsulating the LED illumination module  12 , so that the emitted light from the illumination module  12  may illuminated via the transparent board  14 . 
     Therefore, the two reflector boards  18  may be reflected the emitted light from the illumination module to increase the brightness of illumination. 
     While the present has been described by way of an example and in terms of a preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment. To the contrary, it is intended to cover various modifications. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modification.