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, and a casing comprising at least one air outlet for emitting the first portion of the air flow, and first channel for conveying the first portion of the air flow to the at least one air outlet. To cool part of the casing, the casing diverts a second portion of the air flow away from the at least one heater, and comprises a second channel for conveying the second portion of the air flow along an internal surface of the casing. This second portion of the air flow may merge with the first portion within the casing, or it may be emitted through at least one second air outlet of the casing.
Claims17
A nozzle for a fan assembly for creating an air current, the nozzle comprising:
- an air inlet for receiving an air flow;
- a heating arrangement for heating a first portion of the air flow;
- air diverting surfaces for diverting a second portion of the air flow away from the heating arrangement, and for diverting a third portion of the air flow away from the heating arrangement;
- at least one first channel for conveying the first portion of the air flow to at least one air outlet of the nozzle, the nozzle defining an opening through which air from outside the nozzle is drawn by the air flow emitted from the at least one air outlet;
- at least one second channel for conveying the second portion of the air flow along a first internal surface of the nozzle;
- and
- at least one third channel for conveying the third portion of the air flow along a second internal surface of the nozzle.
Dependencies are inferred from the claim text.