公开(公告)号：US11946478B2

公开(公告)日：2024-04-02

申请号：US16977531

申请日：2019-02-27

Applicant: Dyson Technology Limited

Inventor： David John Shorter ,  Liam Craig Barclay ,  Mark Douglas Whiting ,  Victoria Isabelle Palmer ,  Jonathan Edward Clear ,  Edward Michael Waugh ,  Daniel James Beavis ,  Thomas Sideropoulos ,  James Benjamin Brooks

IPC: F04D25/08 ,  F04D27/00 ,  F04D29/42

CPC classification number: F04D25/08 ,  F04D27/004 ,  F04D29/4226

Abstract: There is provided a fan assembly comprising a motor-driven impeller arranged to generate an airflow, an air outlet arranged to emit the airflow, a plurality of sensors arranged to measure a value for each of a plurality of air quality characteristics, a display and a processor. The processor is configured to receive measured values for each of the plurality of air quality characteristics, identify one of a corresponding set of intervals within which the measured value falls and select an air quality index value associated with the identified interval. The processor is then configured to identify the highest of the selected air quality index values as a current overall air quality index value and to cause the display to display a time series plot of the current air quality index value and a number of preceding air quality index values.

公开(公告)号：US12287108B2

公开(公告)日：2025-04-29

申请号：US16977535

申请日：2019-02-27

Applicant: Dyson Technology Limited

Inventor： David John Shorter ,  Liam Craig Barclay ,  Mark Douglas Whiting ,  Victoria Isabelle Palmer ,  Jonathan Edward Clear ,  Edward Michael Waugh ,  Daniel James Beavis ,  Thomas Sideropoulos ,  James Benjamin Brooks

IPC: F24F11/77 ,  F04D25/08 ,  F04D27/00 ,  F24F11/52 ,  F24F110/65

Abstract: There is provided a fan assembly comprising a motor-driven impeller arranged to generate an airflow, an air outlet arranged to emit the airflow, at least one filter assembly that is arranged to purify the airflow, a plurality of sensors arranged to measure a value for each of a plurality of air quality characteristic, and a processor. The processor is configured to receive measured values for each of the plurality of air quality characteristics, identify one of a corresponding set of intervals within which the measured value falls, select an air quality index value associated with the identified interval, and generate a corresponding speed value using the selected air quality index value. The processor is then configured to set a speed of the motor-driven impeller in dependence upon the highest of the speed values.