Patent Publication Number: US-2017356602-A1

Title: Led bulb structure

Description:
TECHNICAL FIELD OF THE INVENTION 
     The present invention relates to an LED bulb structure, and more particularly to an LED Christmas bulb or general lighting bulb structure. 
     DESCRIPTION OF THE PRIOR ART 
     LED bulbs mentioned in this specification are Christmas bulbs or general lighting bulbs with a glass envelope. Such kinks of LED bulbs available in the current market are only installed with one or more LED light emitting bodies for light emitting purpose. But, if the glass envelope of such kind of LED bulb is broken and is still lighted up without replacement due to negligence or unawareness, probably resulting in electricity leakage due to the inflow of water and cutting people due to the broken parts of the glass envelope. Therefore, conventional LED bulb structures with a glass envelope are still not ideal, required to improve. 
     SUMMARY OF THE INVENTION 
     An LED bulb structure of the present invention is mainly constituted by a glass envelope, support, LED light emitting body, tungsten filament light emitting body and electronic element units, where the glass envelope is vacuum-sealed and is filled with gas or no gas. The support formed by a conducting line is fixed inside the glass envelope, both the LED light emitting body and tungsten filament light emitting body are connected with the support, and the necessary electronic element units are configured on the support between the LED light emitting body and tungsten filament light emitting body. Furthermore, one side of the support is set to a positive pole and another negative pole. As arranged, one side of power source (positive pole or negative pole) must be turned on to light LED light emitting body  30  through the tungsten filament light emitting body  40 , while the tungsten filament light emitting body will emit light because power source is turned on or not emit light even if the power source is turned on. Air will enter the glass envelope of an LED bulb when it is broken. At this time, the tungsten filament will be burned by itself to melt or break to extinguish because oxygen molecules in the air act the tungsten filament physically and chemically to cause it to have a high temperature due to molecular oxygen oxidation combustion-supporting, leaving the support form an open circuit to interrupt the power source to cut off the power supply to the LED light emitting body to cause it to extinguish in such a way to remind users that it is the time to replace it with a new one. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic view of an LED bulb structure according to the present invention; and 
         FIG. 2  is a schematic view of an LED bulb structure according to the present invention while a glass envelope is broken. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to  FIG. 1 , an LED bulb structure of the present invention is mainly constituted by a glass envelope  10 , support  20 , LED light emitting body  30 , tungsten filament light emitting body  40  and electronic element units  50 , where the glass envelope  10  is vacuum-sealed and is filled with gas (a uncertain amount of inert gas) or no gas. The support  20  formed by a conducting line is fixed inside the glass envelope  10 , both the LED light emitting body  30  and tungsten filament light emitting body  40  are connected with the support  20 , and the necessary electronic element units  50  are configured on the support  20  between the LED light emitting body  30  and tungsten filament light emitting body  40 . Furthermore, one side of the support  20  is set to a positive pole and another negative pole. As arranged, one side of power source (positive pole or negative pole) must be turned on to light LED light emitting body  30  through the tungsten filament light emitting body  40 , while the tungsten filament light emitting body  40  will emit light because power source is turned on (or not emit light even if the power source is turned on). 
     Next, referring to  FIG. 2 , air will enter the glass envelope  10  of an LED bulb when it is broken. At this time, the tungsten filament  40  will be burned by itself to melt or break to extinguish because oxygen molecules in the air act the tungsten filament  40  physically and chemically to cause it to have a high temperature due to molecular oxygen oxidation combustion-supporting, leaving the support  20  form an open circuit to interrupt the power source to cut off the power supply to the LED light emitting body  30  to cause it to extinguish in such a way to remind users that the LED bulb has structural defects and it is the time to replace it with a new one, thereby facilitating the users to cultivate a use habit that an LED bulb must be replaced immediately when it is not bright as done in general tungsten vacuum bulbs to ensure that an LED bulb with a broken glass envelope can be noticed and replaced immediately.