H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 41/24 (2006.01) H01J 61/52 (2006.01) H01J 61/56 (2006.01)
Patent
CA 2076126
LD 10,371 COMPACT DISCHARGE LAMP HAVING IMPROVED THERMAL MANAGEMENT CHARACTERISTICS ABSTRACT OF THE INVENTION A discharge lamp having improved thermal management properties includes a housing base in which the ballast circuit utilized for driving the discharge lamp at an appropriate operating frequency is located. The ballast circuit is disposed on a circuit board which is mounted in a vertical orientation within the housing base relative to the discharge lamp being mounted in an upright position. The space along either side of the circuit board on which the components of the ballast circuit are mounted allows for the flow of thermal convection currents thereover. Additionally, the circuit board extends into the lowermost portion of the housing base to the point where the screw base attaches and is disposed in thermal connection to the screw base such that the screw base acts as a heat sink for the components disposed on the circuit board. Selective placement of the components of the ballast circuit is made such that the components capable of generating the most heat are located toward the bottom of the circuit board in closer proximity to the screw base than those components which generate less heat.
Minarczyk Michael M.
Nerone Louis R.
Vamvakas Spiro
Company General Electric
Craig Wilson And Company
Minarczyk Michael M.
Nerone Louis R.
Vamvakas Spiro
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