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US 11,889,799 B2Granted
Fluid-cooled LED-based lighting methods and apparatus for controlled agricultural environments
AssigneeAgnetix, Inc.
InventorsIhor Lys, Nicholas Maderas
Life of this patent
Estimating the term…
Abstract
A lighting fixture has an extruded aluminum housing, at least one light source mechanically supported by the extruded aluminum housing, and at least one copper pipe thermally coupled to the extruded aluminum housing to carry a fluid coolant. During operation of the lighting fixture, the fluid coolant flowing through the at least one copper pipe extracts heat generated by the lighting fixture, and the fluid coolant does not contact the extruded aluminum housing. In one example, a copper fluid coolant circuit is thermally coupled to the housing to contain the fluid coolant, and the lighting fixture does not contain any internal seals or internal O-rings for the fluid coolant.
Claims34
A lighting fixture, comprising:
- an extruded aluminum housing;
- at least one light source mechanically supported by the extruded aluminum housing;
- and
- at least one copper pipe thermally coupled to the extruded aluminum housing to carry a fluid coolant,
- wherein:
- the at least one light source includes at least one LED light source;
- during operation of the lighting fixture, the fluid coolant flowing through the at least one copper pipe extracts heat generated by the lighting fixture;
- the fluid coolant does not contact the extruded aluminum housing;
- the extruded aluminum housing includes at least one cavity to contain control circuitry to control the at least one light source;
- and
- the lighting fixture does not include any seals for the fluid coolant or O-rings for the fluid coolant within the at least one cavity of the extruded aluminum housing.
8 more elements
A lighting fixture, comprising:
- an extruded aluminum housing;
- at least one light source mechanically supported by the extruded aluminum housing;
- and
- at least one copper pipe thermally coupled to the extruded aluminum housing to carry a fluid coolant,
- wherein:
- the at least one light source includes at least one LED light source;
- during operation of the lighting fixture, the fluid coolant flowing through the at least one copper pipe extracts heat generated by the lighting fixture;
- the fluid coolant does not contact the extruded aluminum housing;
- the extruded aluminum housing includes at least one channel formed therein;
- and
- the at least one copper pipe is press-fit into the at least one channel of the extruded aluminum housing so as to establish a thermal connection between the at least one copper pipe and the extruded aluminum housing.
8 more elements
A lighting fixture, comprising:
- an extruded aluminum housing;
- at least one light source mechanically supported by the extruded aluminum housing;
- and
- at least one copper pipe thermally coupled to the extruded aluminum housing to carry a fluid coolant,
- wherein:
- the at least one light source includes at least one LED light source;
- during operation of the lighting fixture, the fluid coolant flowing through the at least one copper pipe extracts heat generated by the lighting fixture;
- the fluid coolant does not contact the extruded aluminum housing;
- and
- the at least one copper pipe includes a first copper pipe and a second copper pipe both thermally coupled to the extruded aluminum housing to carry the fluid coolant.
7 more elements
A lighting fixture, comprising:
- an extruded aluminum housing;
- at least one light source mechanically supported by the extruded aluminum housing;
- and
- at least one copper pipe thermally coupled to the extruded aluminum housing to carry a fluid coolant,
- wherein:
- the at least one light source includes at least one LED light source;
- during operation of the lighting fixture, the fluid coolant flowing through the at least one copper pipe extracts heat generated by the lighting fixture;
- and
- the fluid coolant does not contact the extruded aluminum housing,
- the lighting fixture further comprising at least one port to provide auxiliary DC power to at least one auxiliary device coupled to the at least one port,
- wherein the at least one port comprises at least one of:
- at least one Power over Ethernet (PoE) port to facilitate power coupling and data coupling of at least one first external device to the lighting fixture;
- or
- at least one Universal Serial Bus (USB) port to facilitate coupling of at least one second external device to the lighting fixture.
11 more elements
A controlled agricultural environment, comprising:
- a system comprising:
- at least one lighting fixture comprising:
- an extruded aluminum housing;
- at least one light source mechanically supported by the extruded aluminum housing;
- at least one copper pipe thermally coupled to the extruded aluminum housing to carry a fluid coolant and at least one port to provide auxiliary DC power to at least one auxiliary device coupled to the at least one port;
- wherein:
- the at least one light source includes at least one LED light source;
- during operation of the lighting fixture, the fluid coolant flowing through the at least one copper pipe extracts heat generated by the lighting fixture;
- and
- the fluid coolant does not contact the extruded aluminum housing;
- and
- at least one sensor coupled to the at least one port;
- at least one cooling tower;
- and
- at least one fluid circuit coupled to the at least one cooling tower and the at least one copper pipe of the at least one lighting fixture to carry the fluid coolant between the at least one cooling tower and the at least one lighting fixture.
12 more elements
Dependencies are inferred from the claim text.