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US 9,058,955 B2Granted
Lamp comprising active cooling device for thermal management
AssigneeGE Lighting Solutions, LLC
InventorBruce Richard Roberts
Life of this patent
Estimating the term…
Abstract
Embodiments of a lamp comprise a light source and an active cooling device that propagates airflow within the lamp to dissipate heat from the light source. In one embodiment, the lamp comprises a light emitting diode (LED) device and an inductor that couples in series with the light emitting diode (LED) device. The lamp also comprises a diaphragm magnetically coupled with the inductor, wherein the diaphragm can flex between a first position and a second position to generate the air flow.
Claims18
A lamp, comprising:
- a light source;
- a field generator electrically coupled with the light source, wherein the field generator comprises a base element and an inductor with a winding wound about the base element, wherein the field generator generates a magnetic field in response to a first input signal that energizes the light source, wherein the inductor couples in series with the light source;
- and
- an actuator magnetically coupled with the field generator via the magnetic field.
1 more element
A lamp, comprising:
- a light emitting diode device;
- an active cooling device forming a series circuit with the light emitting diode device and a ground,
- wherein the active cooling device generates a magnetic field in response to a first input signal that energizes the light emitting diode device.
A lamp, comprising:
- a drive circuit generating a first input signal and a second input signal that is different from the first input signal;
- a light emitting diode device coupled with the drive circuit to receive the first input signal;
- a first inductor coupled in series with the light emitting diode device to conduct the first input signal to ground;
- and
- a diaphragm magnetically coupled with the first inductor, wherein the diaphragm comprises material that flexes between a first position and a second position in response to the second input signal from the drive circuit.
2 more elements
Dependencies are inferred from the claim text.