LED Replacement Light Assembly with Improved Cooling Features
AssigneePentair Water Pool and Spa, Inc.
InventorDaniel A. Armstrong
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Abstract
Embodiments of the invention provide an LED replacement light assembly for retrofitting an incandescent light fixture that has a housing with a base. The LED replacement light assembly can include a shaft with a top portion and a lower threaded portion. The lower threaded portion can be screwed into the base. The LED replacement light assembly can also include an LED adapter, and a circuit board including a plurality of LEDs. One embodiment can include a thermally conductive disc that can engage the circuit board and the housing to conduct heat from the circuit board to the housing. A thermal interface can be positioned between the thermally conductive disc and the housing to provide enhanced conduction.
Claims20
An LED replacement light assembly for retrofitting an incandescent light fixture for use under water, the incandescent light fixture having a housing with a base, the LED replacement light assembly comprising:
- a shaft including a top portion and a lower threaded portion, the lower threaded portion for screwing into the base;
- an LED adapter including circuitry for a plurality of LEDs, the LED adapter in electrical communication with the lower threaded portion of the shaft;
- a circuit board including the plurality of LEDs, the plurality of LEDs in electrical communication with the LED adapter;
- and
- a thermally conductive disc engaging the circuit board, an outer surface of the thermally conductive disc engaging the housing for conducting heat from the circuit board to the housing.
An LED replacement light assembly for retrofitting an incandescent light fixture for use under water, the incandescent light fixture having a housing with a base, the LED replacement light assembly comprising:
- a shaft including a top portion and a lower threaded portion, the lower threaded portion for screwing into the base;
- an LED adapter including circuitry for a plurality of LEDs, the LED adapter in electrical communication with the lower threaded portion of the shaft;
- and
- a circuit board including the plurality of LEDs, the plurality of LEDs in electrical communication with the LED adapter, the circuit board having a flat section to support the plurality of LEDs and a flared section being of a shape to match an inner surface of the housing and engaging the inner surface of the housing such that heat can be conducted from the circuit board to the housing.
A method of retrofitting an incandescent light fixture, the incandescent light fixture having a lens, a housing with a base, and an incandescent light screwed into the base, the method comprising the steps of:
- removing the lens;
- removing the incandescent light from the base of the housing;
- providing an LED replacement light assembly that comprises:
- a shaft including a top portion and a lower threaded portion, the lower threaded portion for screwing into the base;
- an LED adapter including circuitry for a plurality of LEDs, the LED adapter in electrical communication with the lower threaded portion of the shaft;
- and
- a circuit board including the plurality of LEDs, the plurality of LEDs in electrical communication with the LED adapter;
- and
- installing the LED replacement light assembly into the incandescent light fixture by screwing the lower threaded portion of the shaft into the base;
- the LED replacement light assembly conducting heat generated by the plurality of LEDs from the circuit board to the housing.
Dependencies are inferred from the claim text.