Patent Publication Number: US-9845941-B2

Title: Lighting arrangement

Description:
BACKGROUND 
     1. Field 
     The present disclosure relates to a light-emitting device. 
     2. Description of Related Prior Art 
     U.S. Pat. No. 8,410,699 discloses a HEAT DISSIPATION ENHANCED LED LAMP. The abstract of the &#39;699 patent indicates that a LED lamp which could directly replace an ordinary tungsten, halogen, or electricity-saving light bulb, includes a LED filament, a lamp base, a thermally conductive electric insulator, and a mask. The thermally conductive electric insulator is filled in a cavity of the lamp base, and includes a first portion mechanically contacting the LED filament and an electrode of the lamp base to provide a first thermal channel from the LED filament to the lamp base, and a second portion adhering the mask to the lamp base to provide a second thermal channel from the lamp base to the mask. By using the mask to enlarge the heat dissipation area, a better heat dissipation effect is achieved. 
     The background description provided herein is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventors, to the extent it is described in this background section, as well as aspects of the description that may not otherwise qualify as prior art at the time of filing, are neither expressly nor impliedly admitted as prior art against the present disclosure. 
     SUMMARY 
     A lighting arrangement can include a first housing portion, a second housing portion, a first wire assembly, a driver board, a heat-shrinkable sleeve, a second negative wire, a second positive wire, and a light emitting diode with chip on board. The first housing portion can define a first aperture having a first portion with a first diameter positioned proximate to a first end of the first housing portion and a second portion with a second diameter positioned proximate to a second end of the first housing portion. The second diameter can be greater than the first diameter. The second housing portion can define a second aperture, a third aperture communicating directly with the second aperture, and a fourth aperture communicating directly with the second aperture. One of the first housing portion and the second housing portion can include radially inwardly-directed threads and the other of the first housing portion and the second housing portion can include radially outwardly-directed threads. The first housing portion and the second housing portion can be selectively engageable with one another through the inwardly-directed threads and outwardly-directed threads to define an enclosed cavity extending along an axis. The first wire assembly can pass into the cavity and can include a first positive wire, a first negative wire, and a ground wire. The driver board can be positioned in the cavity and electrically coupled to the first positive wire and the first negative wire. The heat-shrinkable sleeve can enclose the driver board and electrically insulate the driver board within the cavity from at least one of the first housing portion and the second housing portion and from the ground wire. The second positive wire can pass out of the cavity through the third aperture. The second negative wire can pass out of the cavity through the fourth aperture. The light emitting diode with chip on board (LEDCOB) can be mounted on an external surface of one of the first housing portion and the second housing portion. The second positive wire and the second negative wire can be electrically coupled to the LEDCOB. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The detailed description set forth below references the following drawings: 
         FIG. 1  is a perspective view of a lighting arrangement according to an exemplary embodiment of the present disclosure; 
         FIG. 2  is a front view of the lighting arrangement shown in  FIG. 1 ; 
         FIG. 3  is a rear view of the lighting arrangement shown in  FIGS. 1 and 2 ; 
         FIG. 4  is a right-side view of the lighting arrangement shown in  FIGS. 1-3 ; 
         FIG. 5  is a left-side view of the lighting arrangement shown in  FIGS. 1-4 ; 
         FIG. 6  is a perspective view of multiple examples of the lighting arrangement shown in  FIGS. 1-5  in an exemplary operating environment; 
         FIG. 7  is an exploded and partial cross-section of the lighting arrangement shown in  FIGS. 1-5 ; and 
         FIG. 8  is a circuit schematic of a driver board of the lighting arrangement shown in  FIGS. 1-5 . 
     
    
    
     DETAILED DESCRIPTION 
     The present disclosure, as demonstrated by the exemplary embodiment described below, can provide a lighting arrangement. In an exemplary embodiment of the present disclosure, a lighting arrangement  10  can include a first housing portion  12 , a second housing portion  14 , a first wire assembly  16 , a driver board  18 , a heat-shrinkable sleeve  20 , a second negative wire  22 , a second positive wire  24 , and a light emitting diode with chip on board (LEDCOB  26 ). The first housing portion  12  can extend between first and second opposite ends  32 ,  34  along a central, longitudinal axis  50 . The first housing portion  12  can define a first aperture having a first portion  28  with a first diameter positioned proximate to the first end  32  of the first housing portion  12  and a second portion  30  with a second diameter positioned proximate to the second end  34  of the first housing portion  12 . The second diameter can be greater than the first diameter. The first housing portion  12  can be formed from metal and can include an aperture  36 . The aperture  36  can define inwardly-facing threads. 
     The second housing portion  14  can extend between first and second opposite ends  52 ,  54  along the axis  50 . The second housing portion  14  can define a second aperture  38 . The second housing portion  14  can also define a third aperture  40  communicating directly with the second aperture  38 . The second housing portion  14  can also define a fourth aperture  42  communicating directly with the second aperture  38 . The second housing portion  14  can be formed from metal and can also include an aperture  44 . The aperture  44  can be a blind aperture and define inwardly-facing threads. 
     The exemplary first housing portion  12  can include radially inwardly-directed threads  46  at the second end  34 . The second housing portion  14  can include radially outwardly-directed threads  48  at the first end  52 . The first housing portion  12  and the second housing portion  14  can be selectively engageable with one another through the inwardly-directed threads  46  and outwardly-directed threads  48  to define an enclosed cavity  56  extending along the axis  50 . 
     The first wire assembly  16  can pass into the cavity  56  and including a first positive wire  58 , a first negative wire  60 , and a ground wire  62 . The first positive wire  58  can include a first wire member  64  enclosed in a first insulating sheath  66 . The first positive wire  58  can be the “hot” wire of the lighting arrangement  10 . The first negative wire  60  can include a second wire member  68  enclosed in a second insulating sheath  70 . The first negative wire  60  can be the neutral wire of the lighting arrangement  10 . The ground wire  62  can encircle both of the first positive wire  58  and the first negative wire  60 . The ground wire  62  can be formed from a plurality of strands braided together. Each strand of the braid can be formed from a plurality of individual wires. The first wire assembly  16  can also include an insulating sheath  72  enclosing the ground wire  82 . The ground wire  62  can be electrically coupled to one of the first housing portion  12  and the second housing portion  14  within the cavity  56  for grounding. In the exemplary embodiment of the present disclosure, the ground wire  62  can be connected to a clip  74  affixed to the aperture  44  with a screw  76 . The ground wire  62  can be wound on itself to be attached to the clip  74 , but can encircle both of the wires  58 ,  60  over substantially the remainder of its length. 
     The driver board  18  can be positioned in the cavity  56  and electrically coupled to the first positive wire  58  and the first negative wire  60 . A schematic of the driver board  18  and the LEDs of the LEDCOB  26  is shown in  FIG. 8 . The heat-shrinkable sleeve  20  can enclose the driver board  18  and electrically insulate the driver board  18  within the cavity  56  from at least one of the first housing portion  12  and the second housing portion  14  and from the ground wire  62 . 
     The second positive wire  24  can pass out of the cavity  56  through the aperture  40 . The second negative wire  22  can pass out of the cavity  56  through the aperture  42 . The light emitting diode with chip on board (LEDCOB  26 ) can be mounted on an external surface of one of the first housing portion  12  and the second housing portion  14 . The second positive wire  24  and the second negative wire  22  can be electrically coupled to the LEDCOB  26 . The driver board and the LEDCOB can be acquired from Zega LED Inc. of Surrey, British Columbia, Canada (part no. SCK 04-180-830-120-C1). The LEDCOB  26  can be in a recessed portion of the second housing portion  14 . For example, the second housing portion  14  can include a rib  78  at the second end  54 . 
     The second housing portion  14  can also include radially outwardly-directed threads  84  positioned proximate to the LEDCOB  26  along the axis  50 . The threads  84  can be utilized to mount any one of a plurality of differently shaped globes to the lighting arrangement  10 .  FIG. 6  illustrates lighting arrangements  110 ,  210 , and  310  respectively engaged with globes  182 ,  282 , and  382 . It is noted that lighting arrangements  110 ,  210 , and  310  are substantially similar to lighting arrangement  10 .  FIG. 6  also illustrates the lighting arrangement  10  be utilized without a globe. 
     The second housing portion  14  can also include radially outwardly-directed threads  80  positioned immediately adjacent to the LEDCOB  26  along the axis  50 . The threads  80  can be utilized to mount any one of a plurality of differently shaped globes to the lighting arrangement  10  having a different thread size than the thread size of the threads  84 . 
     While the present disclosure has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the essential scope thereof. Therefore, it is intended that the present disclosure not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this present disclosure, but that the present disclosure will include all embodiments falling within the scope of the appended claims. Further, the “present disclosure” as that term is used in this document is what is claimed in the claims of this document. The right to claim elements and/or sub-combinations that are disclosed herein as other present disclosures in other patent documents is hereby unconditionally reserved.