Air cooled horticulture lighting fixture for a double ended high pressure sodium lamp
AssigneeIP Holdings, LLC
InventorJohn Stanley
Life of this patent
Estimating the term…
Abstract
An air cooled double ended high pressure sodium lamp fixture for growing plants in confined indoor spaces. The fixture seals the lamp and heat generated by the same to a reflector interior. Flow disruptors create turbulence in a cooling chamber thereby enhancing thermal transfer into a cooling air stream that flows over and around the reflector's exterior side thereby convectively cooling the lamp using the reflector as a heat sink. The lamp is effectively maintained at operational temperatures and the fixture housing is insulated from the hotter reflector by a gap of moving cooling air, allowing use of the double ended HPS lamp in confined indoor growing spaces.
Claims8
An air cooled double ended high pressure sodium (HPS) lamp fixture 1 for growing plants in confined indoor growing spaces, comprising:
- a housing 200 having an open bottom 205 circumscribed by a housing edge 210, a first duct 235 being substantially aligned to a second duct 245, and a housing interior 220;
- a reflector 100 captured within the housing interior 220, the reflector 100 having a first aperture 105A located in opposition to a second aperture 105B, a reflector interior side 101, a reflector exterior side 102, a reflector top 104, and an open bottom 106 circumscribed by a reflector lip 103, the reflector lip 103 located adjacent to the housing edge 210 defining at least one cooling chamber 300 in the space between the reflector exterior side 102 and the housing interior 220, the cooling chamber 300 being in air communication with the first duct 235 and the second duct 245;
- a first socket 230A disposed to sealingly fill the first aperture 105A, a second socket 230B disposed to sealingly fill the second aperture 105B, the first socket 230A and second socket 230B constructed and arranged to cooperatively receive the ends of the double ended HPS lamp 2 as located within the reflector interior side 101;
- a cooling air stream 310 disposed through the cooling chamber 300 between the first duct 235 and the second duct 245;
- a glass sheet 30 and gasket 31 disposed at least proximate to the reflector lip 103 to seal the reflector interior side 101 from the confined growing space;
- at least one flow disruptor 160 disposed within the cooling air stream 310, the flow disruptor 160 being constructed and arranged to disturb laminar flow of the cooling air stream 310 creating local turbulence within the cooling chamber 300 whereby enhancing convective heat transfer from the reflector 100 into the cooling air stream 310.
An air cooled double ended high pressure sodium (HPS) lamp fixture 1 for growing plants in confined indoor growing spaces, comprising:
- a housing 200 having an open bottom 205 circumscribed by a housing edge 210, a first duct 235 being substantially aligned to a second duct 245, and a housing interior 220;
- a reflector 100 captured within the housing interior 220, the reflector 100 having a first aperture 105A located in opposition to a second aperture 105B, a reflector interior side 101, a reflector exterior side 102, a reflector top 104, and an open bottom 106 circumscribed by a reflector lip 103, the reflector lip 103 located adjacent to the housing edge 210 defining at least one cooling chamber 300 in the space between the reflector exterior side 102 and the housing interior 220, the cooling chamber 300 being in air communication with the first duct 235 and the second duct 245;
- a first socket 230A disposed to fill the first aperture 105A, a second socket 230B disposed to fill the second aperture 105B, the first socket 230A and second socket 230B constructed and arranged to cooperatively receive the ends of the double ended HPS lamp 2 as located within the reflector interior side 101;
- a cooling air stream 310 disposed through the cooling chamber 300 flowing from the first duct 235 to the second duct 245;
- a glass sheet 30 and gasket 31 disposed at least proximate to the reflector lip 103 to seal the reflector interior side 101 from the confined growing space;
- at least one flow disruptor 160 enclosing the first socket 230A and first aperture 105A, the flow disruptor 160 being constructed and arranged to deflect the cooling air stream 310 from passing through the first aperture 105A creating local turbulence within the cooling chamber 300 whereby enhancing convective heat transfer from the reflector 100 into the cooling air stream 310.
Dependencies are inferred from the claim text.