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US 9,719,670 B1Granted
Fan cooled LED light and housing
AssigneeLEDLab, LLC
InventorScott Clifford
Life of this patent
Estimating the term…
Abstract
A light emitting diode (LED) system that includes a LED, a heat sink, a fan housing, a fan, and a cover is disclosed. The heat sink is typically coupled to the LED, and the fan housing is typically coupled to the heat sink opposite the LED. The fan housing is sized to fit within an electrical junction box and includes a fan housing aperture that extends through the fan housing. A cover may be coupled to the fan housing opposite the heat sink. The system may include at least one air intake opening and at least one air exhaust opening. When activated, the fan may external air into the fan housing through the air intake opening and direct the air toward the heat sink and ultimately through the air exhaust opening. In so doing, the temperature of the heat sink and the LED is reduced.
Claims36
A light emitting diode (LED) lighting system, comprising:
- a heat sink comprising a platform, an outer periphery, an air exhaust opening positioned between the outer periphery and the platform, a sink wall positioned between the air exhaust opening and the outer periphery, and one or more spacing tabs extending from an inner surface of the heat sink between the outer periphery and the sink wall, the one or more spacing tabs configured to form an air intake opening between the one or more spacing tabs and the inner surface of the heat sink;
- one or more LEDs coupled to the platform of the heat sink;
- a fan housing coupled to the heat sink opposite the one or more LEDs and comprising a fan housing aperture and a cover;
- a fan coupled to the fan housing positioned at least partially within the fan housing aperture, wherein airflow enters the LED lighting system through the air intake opening and exits through the air exhaust opening responsive to activation of the fan.
1 more element
A light emitting diode (LED) lighting system, comprising:
- one or more LEDs;
- a heat sink coupled to the one or more LEDs, the heat sink comprising an outer periphery, a platform, a sink wall, an air exhaust opening extending through the platform and positioned between the sink wall and the platform, an outer wall at the outer periphery, a heat sink channel formed between the outer wall and each of the heat sink walls, and a plurality of air intake openings extending through the outer wall;
- a fan housing coupled to the heat sink opposite the one or more LEDs and comprising a fan housing aperture and a cover;
- and
- a fan coupled to the fan housing and positioned at least partially within the fan housing aperture, wherein airflow enters the LED lighting system through the air intake opening and exits through the air exhaust opening responsive to activation of the fan;
- wherein the cover comprises a threaded coupling configured to removably couple to a base of a jelly jar light.
3 more elements
A light emitting diode (LED) lighting system, comprising:
- one or more LEDs;
- a heat sink coupled to the one or more LEDs, the heat sink comprising an outer periphery, a platform, a sink wall, and an air exhaust opening extending through the platform and positioned between the sink wall and the platform;
- a fan housing coupled to the platform of the heat sink opposite the one or more LEDs, the fan housing comprising an end wall positioned between the sink wall and the outer periphery of the heat sink, a dividing wall coupled to the end wall and comprising a terminating end aligned with and adjacent to the sink wall, an outer opening positioned between the end wall and the dividing wall, a fan housing aperture within the fan housing, and a cover coupled to the end wall opposite the heat sink, wherein the fan housing comprises a volume small enough to be housed within a standard single gang electrical junction box;
- a fan coupled to the fan housing and positioned at least partially within the fan housing aperture, wherein airflow enters the fan housing through the outer opening, passes through the fan housing aperture to interface the heat sink, and exits through the air exhaust opening responsive to activation of the fan;
- wherein the fan comprises a variable speed fan and is electrically coupled to the one or more LEDs such that a voltage of the fan varies as a voltage to the one or more LEDs varies, wherein a speed of the fan varies directly with a brightness of the one or more LEDs.
2 more elements
A light emitting diode (LED) lighting system, comprising:
- a heat sink comprising a plurality of ribs protruding from an inner surface of the heat sink and extending continuously from an outer periphery of the heat sink towards a center of the heat sink;
- a fan housing coupled to the heat sink adjacent the plurality of ribs such that a plurality of air exhaust openings are formed on the outer periphery of the heat sink between the heat sink and a first end of the fan housing, the fan housing comprising a plurality of air intake openings on an outer periphery of the fan housing distal the air exhaust openings;
- one or more LEDs coupled to the heat sink opposite the fan housing;
- and
- a fan mounted within the fan housing, wherein, responsive to activation of the fan, air flows into the fan housing through the air intake openings and out the fan housing through the air exhaust openings;
- wherein the fan comprises a variable speed fan and rotates at a first speed when the one or more LEDs are at a first brightness and at a second speed slower than the first speed when the one or more LEDs are at a second brightness less bright than the first brightness.
3 more elements
Dependencies are inferred from the claim text.