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US 8,740,415 B2Granted
Partitioned heatsink for improved cooling of an LED bulb
AssigneeSwitch Bulb Company, Inc.
InventorGlenn Wheelock
Life of this patent
Estimating the term…
Abstract
A light emitting diode (LED) bulb has a shell. An LED is within the shell. The LED is electrically connected to a driver circuit, which is electrically connected to a base of the LED bulb. The LED bulb also has a heatsink between the shell and base. A thermal break partitions the heatsink into an upper partition adjacent the shell and a lower partition adjacent the base.
Claims20
A light emitting diode (LED) bulb comprising:
- a shell;
- an LED within the shell;
- a driver circuit electrically connected to the LED;
- a base electrically connected to the LED driver circuit;
- and
- a heatsink between the base and the shell, wherein the heatsink has a thermal break defining an upper partition adjacent the shell and a lower partition adjacent the base, and wherein the upper partition and the lower partition each conducts heat through the body of the respective partition and dissipates heat from the LED bulb via a surface area of the upper partition and the lower partition exposed to the environment outside of the LED bulb.
3 more elements
A light emitting diode (LED) bulb comprising:
- a shell;
- an LED within the shell;
- a base;
- and
- a heatsink between the base and the shell, wherein the heatsink has a thermal break defining an upper partition adjacent the shell and a lower partition adjacent the base, and wherein the upper partition and the lower partition each conducts heat through the body of the respective partition and dissipates heat from the LED bulb via a surface area of the upper partition and the lower partition exposed to the environment outside of the LED bulb.
2 more elements
A light emitting diode (LED) bulb comprising:
- a shell;
- an LED within the shell;
- a liquid within the shell;
- a base;
- and
- a heatsink between the base and the shell, wherein the heatsink has a thermal break defining a first partition adjacent the shell and a second partition adjacent the base, and wherein the first partition and the second partition each conducts heat through the body of the respective partition and dissipates heat from the LED bulb via a surface area of the upper partition and the lower partition exposed to the environment outside of the LED bulb.
3 more elements
Dependencies are inferred from the claim text.