Abstract:
A modular illumination lamp comprises a base, wherein the lamp further comprises: a first frame integrally formed with the base; a second frame connected to the first frame or the base; at least one illumination module mounted on the first and second frames. By the specific design of the modular illumination lamp, the amount of the illumination modules can be increased or decreased as desired.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This is a national stage application under 35 U.S.C. §371(c), PCT application number PCT/US11/57194 filed on Oct. 21, 2011, which respectively claims priority to Chinese application 201020599022.1 filed on Oct. 29, 2010, the disclosures of which are hereby incorporated in their entirety by reference herein. 
     
    
     TECHNICAL FIELD 
       [0002]    An embodiment of the present invention relates to a lamp, in particularly, to a modular light-emitting diode (LED) lamp with the number of its modules being able to be increased or decreased as desired. 
       BACKGROUND 
       [0003]    Currently, there has been a trend of using LED light sources to replace other kinds of light sources for energy saving. LED lamps are generally similar to traditional lamps in some aspects, and usually, the size of the LED lamp is fixed, and the power of the lamp can be adjusted by varying the amount of the LEDs. It is uneconomical to use a large lamp housing where small power is required. 
         [0004]    Currently available modular LED lamps usually each have a detachable frame mounted on the base of the lamp. Frames with different lengths may be selected in accordance with the amount of LED illumination modules needed. However, such a lamp with a detachable frame is generally less aesthetic in appearance than those with a frame integral with the lamp base, since the detachable frame is normally made by extrusion, and is of poor flexibility. 
       BRIEF DESCRIPTION 
       [0005]    The technical problem to be solved by the disclosed technology is to overcome the drawbacks in the related technical field that the frame and base of the lamp can hardly be integrally formed and the lamp has poor flexibility. Hence, an embodiment of the present invention discloses a new modular illumination lamp. 
         [0006]    To solve the above problem, an embodiment of the present invention provides a modular illumination lamp comprises a base, wherein the lamp further comprises: a first frame integrally formed with the base; a second frame connected to the first frame or the base; at least one illumination module mounted on the first and second frames. 
         [0007]    By the specific design of the first and second frames, the amount of the illumination modules can be increased or decreased as desired. 
         [0008]    As the first frame is formed integrally with the base of the lamp, the technical solution of the embodiments of the present invention ensures an aesthetic appearance of the lamp in its normal use state and the flexibility of the product. The second frame may be added under special requirements to lengthen the lamp structure, so as to achieve a good effect in use. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]    The contents, advantages of embodiments of the present invention would be more apparent with reference to the accompany drawings of the illustrative embodiments of the invention. 
           [0010]      FIG. 1  shows a structural exploded view of a modular illumination lamp of an embodiment of the invention; 
           [0011]      FIG. 2  shows a structural view of a telescopic extrusion member of the modular illumination lamp of an embodiment of the invention; 
           [0012]      FIG. 3  shows a structural exploded view of the telescopic extrusion member of the modular illumination lamp of an embodiment of the invention; 
           [0013]      FIG. 4  shows a frame view of a telescopic lamp housing of the modular illumination lamp of an embodiment of the invention; 
           [0014]      FIG. 5  shows an elevation view of a light source module of the modular illumination lamp of an embodiment of the invention; 
           [0015]      FIG. 6  shows an exploded view of the light source module of the modular illumination lamp of an embodiment of the invention; 
           [0016]      FIG. 7  shows an elevation assembly view of the light source module of the modular illumination lamp of an embodiment of the invention; and 
           [0017]      FIG. 8  shows an elevation assembly view of the light source module of the modular illumination lamp of an embodiment of the invention from another angle of view. 
       
    
    
     DETAILED DESCRIPTION 
       [0018]    An embodiment of the invention is shown in  FIG. 1-8 , wherein  FIG. 1  shows a structural exploded view of a modular LED lamp, and said lamp comprises a base  1 , a first frame  2 , a power source case  3 , a second frame  4 , an end cap  5 , and LED light source module(s)  6 . 
         [0019]    The base  1  comprises an upper housing  11  and a lower housing  12 . The power source  3  is mounted in a space formed between the upper and lower housings. The lower housing  12  comprises a pivot shaft  120  on its rear side, which is mounted within respective hole or holes (not shown) on the rear side of the upper housing, such that the lower housing  12  can be pivotally mounted on the upper housing  11 , and are fixed together with the upper housing  11  by a fixing means on the front of the lower housing  12 . The power source case  3  mounted within the space formed between the upper and lower housing performs a conversion from alternating current (AC) to direct current (DC), i.e., converts alternating electric current AC to direct current. 
         [0020]    The front portion of the base  1  further comprises a first frame  2 , which is formed integral with the base  1  by casting so as to meet different requirements of the users and the forming of the different appearance. The first frame  2  comprises a support rod extending forwardly from the base  1 , a cross beam  24 , and a space  22  running through in the up-down direction. The support bar  21  and the cross beam  24  are respectively provided with threaded holes  23 . The inside of the first frame  1  forms a receiving space for receiving the LED light source module(s)  6 . A bolt  7  mates with each of the threaded holes in the support bar  21 , so as to fit the LED light source  6  onto the first frame  2 . 
         [0021]    The length of the first frame  2  can be adjusted as desired. The present embodiment shows an arrangement with two LED modules, which is the one of the familiar arrangements in use. A section of the first frame  2  can be removed away when only one LED module is mounted. 
         [0022]    With Reference to  FIGS. 2-4 , the second frame  4  is mounted on a side of the first frame. The second frame  4  comprises the support bars  41 , which are extrusion members or stamping members, extending along an axis direction of the lamp, and a top face thereof is connected to cross beams  42  and  45  by self tapping screws  7 . The cross beams  42 ,  45  and the support bar  41 , the top face  43  together form a through space  40 . The amount of the mounted optical modules is changed with the requirement of the lamp power, and thus the lengths of the support bar  41  and the top face  43  are also changed. 
         [0023]    With reference to  FIGS. 5-6 , the LED module  6  comprises a radiator, the center of which forms a receiving portion  67  inside, and is provided with a DC-DC circuit (not shown) on its back. There is a circuit board  68  inside the receiving portion  67 . A LED light source  63  is mounted on the circuit board  68 . Heat dispersion ridges  61  extend from the back of the receiving portion  67  to the two sides of the receiving portion, and extend from the radiator vertically and upwardly. Through holes  62  are formed between heat dispersion ridges  61  so as to facilitate the dispersion of heat. As shown in  FIGS. 7 and 8 , when the LED module  6  are mounted on the first frame  2  and the second frame  4 , at least a portion of the heat dispersion ridges  61  and the through holes  62  are disposed just below the through space  22  and  40 , so as to facilitate the heat dispersion of the vertically extending heat dispersion ridges  61  and prevent accumulation of dirt and debris on the lamp. 
         [0024]    A reflector  64  comprises two side portions  642  and a reflecting portion  641  connecting the two side portions  642  and forms a sector structure, and a receiving space is formed between the side portions  642  and reflector  641  and corresponds to the LED light sources  63 . In the present embodiment, each LED module  6  comprises three reflectors  64 , each corresponding to the LED light source  63  on the circuit board  68  respectively. When the LED module  6  is mounted on the circuit board  68 , the LED light source  63  is located in the receiving space  640 . The light source  63  emits light onto the reflector  64 , and the light reflected from the reflector  64  is emitted to outside through lens  65 . There is also a portion of the light emitted directly to outside without being reflected. The present embodiment adapts design of a sector shape reflector  64  adjacent to each LED light source  63 , so as to achieve good optical effect. A press plate  66  fixes the lens  65  and reflector  64  on the LED module  6 . 
         [0025]    An end cap  5  is mounted on a side of the second frame  4 . The end cap  5  may also be directly mounted on a side of the first frame  2 , as the fixation structure is common to both the second frame  4  and the first frame  2 . Therefore, a complete lamp is constructed. That is to say, the end cap  5  may connected to the first frame  2  or the base, and is same with the fixation means on the second frame  4  in structure. 
         [0026]    The lamp of an embodiment of the present invention may use an arrangement with a base and a first frame integral with the base instead of the arrangement with an end cap; the lamp further comprises a second frame mounted to be connected with the first frame or the base. 
         [0027]    As the first frame  2  is formed integral with the base  1  of the lamp, an embodiment of the present invention ensures an aesthetic appearance of the lamp in its normal use state and the flexibility of the product. The second frame may be added under special requirements to lengthen the lamp structure, so as to achieve a good effect in use. 
         [0028]    This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any computing system or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.