US2007025109A1PendingUtilityA1

C7, C9 LED bulb and embedded PCB circuit board

48
Individually held — no corporate assignee on recordPriority: Jul 26, 2005Filed: Jul 26, 2005Published: Feb 1, 2007
Est. expiryJul 26, 2025(expired)· nominal 20-yr term from priority
Inventors:Jing Jing Yu
F21V 3/02F21W 2121/00Y10S362/80F21K 9/232F21Y 2115/10H05B 45/34Y02B20/30
48
PatentIndex Score
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Cited by
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References
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Claims

Abstract

The invention presents a new design of C7 or C9 type LED bulb and its embedded PCB electronic circuit board structure, comprising a lamp cover, LEDs, a PCB circuit board and a base. The bulb houses one or multiple number of LEDs. The LEDs are soldered on the PCB board that is embedded inside of the base. The PCB board power input ports connect to the brass base or are directly wired to outside the base. The base and the lamp cover may be attached together by means of bonding (thermal, sonic or solvent), friction interference fit, adhesive or simply by screwing the lamp cover into the threaded base. The PCB board, utilizing a bridge design, allows the LED bulb to be directly powered by 110-120V AC voltage power sources. The simple bulb design significantly reduces the weight of the entire product and power consumption.

Claims

exact text as granted — not AI-modified
1 . A new C9 style LED bulb comprising: a lamp cover, LEDs, a PCB electronic circuit board, a brass base. The bulb houses the LEDs that are soldered on the PCB board, and the PCB board is embedded inside of the base. The voltage input ports of the PCB board are connected to the brass connectors.  
   
   
       2 . The LED bulb of  claim 1 , wherein said bulb can be a C7 style LED bulb.  
   
   
       3 . The LED bulb of  claim 1 , wherein said base can be a E12 type base.  
   
   
       4 . The LED bulb of  claim 1 , wherein said base can be a E14 type base.  
   
   
       5 . The LED bulb of  claim 1 , wherein said base can be a E17 type base.  
   
   
       6 . The LED bulb of  claim 1 , wherein said lamp cover can be round.  
   
   
       7 . The LED bulb of  claim 1 , wherein said lamp cover can be of a polygonal shape.  
   
   
       8 . The LED bulb of  claim 1 , wherein said PCB board is used to connect LEDs to 110-120V AC voltage.  
   
   
       9 . The PCB board of  claim 8 , wherein said AC 110-120V voltage inputs are in series with a resistor and capacitor unit and another resistor before connecting to a voltage bridge unit which transfers AC to DC voltage.  
   
   
       10 . The LED bulb of  claim 1 , wherein a fuse is used to limit the total current and protect the PCB board and LEDs.  
   
   
       11 . The PCB board of  claim 8 , wherein said output voltage to LEDs is stabilized by connecting the capacitor and voltage regulator diode in parallel.  
   
   
       12 . The LED bulb of  claim 1 , wherein said lamp cover can be securely attached to the base by screwing the lamp cover into the threaded base  
   
   
       13 . The LED bulb of  claim 1 , wherein said lamp cover can be securely attached to the base by adhesive.  
   
   
       14 . The LE bulb of  claim 1 , wherein said LED pins are connected to the PCB board by soldering.  
   
   
       15 . The LED bulb of  claim 1 , wherein said lamp cover can be securely attached to the base by adhesive.  
   
   
       16 . The LED bulb of  claim 1 , wherein said base can be made with any suitable conducting material.

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