Patent ID: 11898776
Assignee: OTIS ELEVATOR COMPANY
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC B  F | IPC F

Claim 8:
9. An elevator cab, comprising:
a floor;
a ceiling;
a plurality of vertically oriented walls between the floor and the ceiling, at least one of the plurality of vertically oriented walls including a plurality of aesthetic raised panels each having a height that extends over a substantial portion of a distance between the floor and the ceiling, a housing being configured as at least one of the plurality of aesthetic raised panels, the housing including an inlet, an outlet, and a plurality of air pathways between the inlet and the outlet;
a fan module that is situated to cause air flow into the inlet and along at least one of the plurality of air pathways in a first direction and air flow along at least one other of the plurality of air pathways in a second direction that is opposite the first direction; and
an air purifier comprising at least one source of radiation situated within the plurality of air pathways along a substantial length of the plurality of air pathways and configured to irradiate air that flows along the plurality of air pathways to thereby purify the air before the air exits the outlet, and wherein the at least one source of radiation comprises a radiation strip that extends from a first end adjacent a fan from the fan module at the inlet to a second end adjacent the outlet;
wherein the housing, configured as the at least one of the plurality of aesthetic raised panels, includes a plurality of baffles that define the plurality of air pathways, and wherein the plurality of baffles are spaced apart from each other in a direction across a width of the at least one of the plurality of vertically oriented walls such that the plurality of air pathways comprise a series of vertical air pathways that each extend along the substantial portion of the distance between the floor and the ceiling;
wherein the fan module comprises a plurality of fans, and wherein the series of vertical air pathways comprise at least five vertical air pathways, and wherein:
the fan module comprises:
a first fan of the plurality of fans located in a first vertical air pathway of the at least five vertical air pathways adjacent to the inlet;
a second fan of the plurality of fans located in a transition between a second vertical air pathway and a third vertical air pathway of the at least five vertical air pathways; and
a third fan of the plurality of fans located in a transition between a fourth vertical air pathway and a fifth vertical air pathway of the at least five vertical air pathways.