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US 12,539,734 B2Granted
Combination of roof top air conditioning unit base pan and air inlet duct
AssigneeDometic Sweden AB
InventorsJianmin Chen, Sihu Liu
Life of this patent
Estimating the term…
Abstract
The present embodiments relate to a roof top air conditioning unit with connection air ducts. The plurality of air connection air ducts are disposed between a roof top unit and an air distribution box. The plurality of connection air ducts define an adjustable height for the air duct that may compensate for vehicles of differing roof thickness dimension.
Claims13
A combination of a roof top air conditioning unit base pan and connection air ducts, the combination comprising:
- a roof top unit, a roof, said connection air ducts being a plurality of individual connection air ducts which are in stacked arrangement, and an air distribution box;
- wherein the base pan is disposed on an outer wall surface of the roof, the base pan provided with an air outlet;
- the air distribution box disposed on an inner wall surface of the roof, the air distribution box provided with an air inlet duct;
- the connection air ducts communicating the air outlet of the base pan with the air inlet duct of the air distribution box via an opening through the inner wall surface of the roof;
- said plurality of individual connection air ducts comprising a first connection air duct connected to said base pan, a second connection air duct connected to said first connection air duct and to said air distribution box air inlet duct, each of said connection air ducts having an upper surface and a lower surface wherein said lower surface of said first connection air duct is disposed above said upper surface of said second connection air duct;
- and
- wherein an adjustment portion is formed in the air outlet of the base pan and has a vertical dimension that is greater than any one of the plurality of individual connection air ducts;
- such that the first connection air duct is receivable within the base pan adjustment portion, and is adjustable for differing dimensions between the outer wall surface and the inner wall surface.
5 more elements
A combination of a roof top air conditioning unit base pan and connection air ducts, the combination comprising:
- a roof top unit, a roof, said connection air ducts and an air distribution box;
- wherein the roof top unit is disposed on an outer wall surface of the roof, the roof top unit having a base pan provided with an air outlet;
- the air distribution box is disposed on an inner wall surface of the roof, the air distribution box is provided with an air inlet upper duct;
- the connection air ducts are formed of a plurality of individual connection air ducts in stacked arrangement communicating the air outlet of the base pan with the air inlet upper duct of the air distribution box via an opening of the roof;
- characterized in that the air outlet of the base pan provides an adjustment portion for adjusting a roof thickness gap;
- wherein the adjustment portion has a vertical recess dimension that is greater than any one individual connection air duct of the plurality of individual connection air ducts;
- wherein the connection air ducts each having an upper surface and a lower surface, the lowermost connection air duct lower surface are shaped to fit with an upper surface of the air distribution box upper duct;
- the connection air ducts upper surface are shaped to fit within the base pan adjustment portion;
- such that the any one individual connection air duct is receivable within the base pan adjustment portion, and is adjustable for differing dimensions between the outer wall surface and inner wall surface.
6 more elements
Dependencies are inferred from the claim text.