Heat sink

A site light comprising:

• a main housing having a plurality of inner surfaces defining a first cavity;
• and
• a charger supported by the main housing and positioned within the first cavity, the charger including
• a charger housing having a plurality of inner surfaces defining a second cavity,
• one or more openings formed in the charger housing, the one or more openings fluidly communicating the second cavity with the first cavity, and
• a heat sink at least partially disposed in the charger housing and operable to dissipate heat produced in the charger housing, a first portion of the heat sink positioned in facing relationship with one of the inner surfaces of the charger housing, a second portion of the heat sink positioned in facing relationship with one of the inner surfaces of the main housing via the one or more openings such that the heat sink is at least partially exposed to the first cavity, the heat sink in heat transfer relationship with components of charger electronics of the charger.

A site light comprising:

• a main housing having a plurality of inner surfaces defining a first cavity;
• and
• a charger supported by the main housing and positioned within the first cavity, the charger including
• a charger housing having a plurality of inner surfaces defining a second cavity,
• one or more openings formed in the charger housing, the one or more openings fluidly communicating the second cavity with the first cavity,
• a printed circuit board having charger electronics, the printed circuit board positioned within the second cavity, and
• a heat sink at least partially disposed in the charger housing and operable to dissipate heat produced in the charger housing, a first portion of the heat sink coupled to the printed circuit board and in heat transfer relationship with components of the charger electronics, the first portion positioned in facing relationship with one of the inner surfaces of the charger housing, a second portion of the heat sink extending from the first portion toward the one or more openings, the second portion positioned in facing relationship with one of the inner surfaces of the main housing via the one or more openings such that the heat sink is at least partially exposed to the first cavity.

A power adapter assembly comprising:

• a power box including a housing defining an internal compartment, the power box including an electrical component received in the internal compartment;
• a heat sink positioned within the internal compartment and operable to dissipate heat produced by the electrical component, the heat sink having a U-shaped cross-section formed by a first leg, a second leg spaced from the first leg, and an intermediate leg extending therebetween, the first leg, the second leg, and the intermediate leg defining an air flow slot extending longitudinally along an axis through the heat sink, the heat sink positioned in heat transfer relationship with the electrical component;
• and
• an adapter electrically connectable to the power box, the adapter configured to supply power to an electrical device.

A power adapter assembly comprising:

• a power box including a housing defining an internal compartment, the power box including an electrical component received in the internal compartment;
• a heat sink positioned within the internal compartment and operable to dissipate heat produced by the electrical component, the heat sink having a body and a plurality of fins extending therefrom, the heat sink in heat transfer relationship with the electrical component;
• a case positioned within the internal compartment and positioned to surround the fins of the heat sink, the body of the heat sink positioned exterior to the case;
• and
• an adapter electrically connectable to the power box, the adapter configured to supply power to an electrical device.