Fan assembly
AssigneeDyson Technology Limited
InventorsJohn David Wallace, Chang Hin Choong
Life of this patent
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Abstract
A fan assembly includes a motor-driven impeller for creating an air flow, at least one heater for heating a first portion of the air flow, a surface diverting a second portion of the air flow away from said at least one heater, and a casing comprising at least one first air outlet for emitting the first portion of the air flow and at least one second air outlet from emitting the second portion of the air flow. To cool an external surface of the casing, at least one second air outlet is arranged to direct at least part of the second portion of the air flow over the external surface.
Claims30
A fan assembly comprising:
- a system for creating an air flow;
- a heating arrangement for heating a first portion of the air flow;
- at least one air diverting surface for diverting a second portion of the air flow away from the heating arrangement;
- and
- a casing comprising a plurality of air outlets for emitting the air flow from the casing, the casing having an annular external surface defining an opening through which air from outside the casing is drawn by the air flow emitted from the air outlets;
- wherein the plurality of air outlets comprises at least one first air outlet for emitting the first portion of the air flow through the opening and at least one second air outlet for emitting the second portion of the air flow through the opening;
- wherein said at least one second air outlet is arranged to direct the second portion of the air flow over said external surface of the casing, and said at least one first air outlet is arranged to direct the first portion of the air flow over the second portion of the air flow.
Dependencies are inferred from the claim text.