WO2015078672A1 - Air filter monitoring - Google Patents
Air filter monitoring Download PDFInfo
- Publication number
- WO2015078672A1 WO2015078672A1 PCT/EP2014/073831 EP2014073831W WO2015078672A1 WO 2015078672 A1 WO2015078672 A1 WO 2015078672A1 EP 2014073831 W EP2014073831 W EP 2014073831W WO 2015078672 A1 WO2015078672 A1 WO 2015078672A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- air filter
- motor
- flow
- pressure difference
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/19—Means for monitoring filtering operation
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
- A47L9/2842—Suction motors or blowers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
Definitions
- the invention relates to a device (e.g. a vacuum cleaner or an air cleaner) comprising an air filter, and to a method of air filter monitoring.
- JP2008301878 provides a vacuum cleaner capable of detecting the clogging of a filter through which air from a dust collection chamber passes toward an electric fan.
- the dust sucked by the operation of the electric fan is stored inside a dust cup, and air from the dust cup passes through the filter toward the electric fan.
- the amount of the dust stored in the dust cup is detected by a dust sensor, and the air flow rate of the electric fan is detected by an air flow rate detection part based on the change of the electric current in the electric fan.
- US5294872 discloses a vacuum cleaner in which by detecting a rotational speed of a variable speed fan motor adapted to give a suction force to the cleaner and its change range, the choking state of the filter and the state of the cleaned surface are discriminated, and a speed command of the fan motor is corrected on the basis of the result of the discrimination, and comfortable cleaning can be performed by the optimum suction force.
- the combination of the flow prediction and the pressure drop over the filter can be combined to a parameter related to the filter resistance, and thus the pollution.
- Fig. 1 shows an embodiment of a device in accordance with the present invention
- ⁇ Voltage to motor as provided by a speed regulator
- part of the invention is to derive an approximation of the flow from other parameters out of the list above by means of calculation.
- a preferred method is the calculation of flow as a function of ⁇ and I.
- Another method is the calculation of flow as a function of ⁇ and ⁇ , or (although more complex) to use T instead of I; ⁇ or T could thus be used as data representative of I within the meaning of the claims.
- the measurements including the filter pressure difference, are fed into a microprocessor that will do the calculation by means of the determined algorithm and will generate a parameter related to the level of filter pollution. Depending on the value of this parameter, information will be generated that can be used to give feed back to the user about the filter status. This information could also be used to control functions in the vacuum cleaner, for instance to control flow.
- the flow (j>Fiit could be measured, but this is relatively complicated. Therefor the idea is to calculate the flow out of known, or simply measurable, system parameters.
- This function / describes a surface in the (_ ⁇ ⁇ , I Motor > Motor) space.
- ⁇ approximated ⁇ 3 ⁇ 4 ⁇ + 10 ⁇ I + a 20 ⁇ I 2 + a 1 ⁇ / ⁇ ⁇ + a 01 ⁇ Ap + a 02 ⁇ Ap 2 [4]
- the coefficients a m consult can be determined via the method as described and be put as fixed numbers into the microprocessor. By putting the formula as algorithm into the microprocessor as well, the flow can be calculated with the measured current and pressure built up as inputs.
- the microprocessor after loading the algorithm. Via formula [1] and the measurement of the pressure difference over the filter, the resistance of the filter can be calculated. As soon as the resistance surpasses a predefined value, the signal for a polluted filter is generated.
- suitable coefficients can be found by measuring the actual flow and tuning the coefficients until the approximated flow sufficiently measures the actual flow. These coefficients can then be programmed into the microprocessor MP.
- Fig. 2 illustrates the operation of the microprocessor MP in the device of Fig. 1.
- the flow ⁇ ni t is calculated from the motor current I and the pressure difference over the fan as determined by the second pressure difference sensor D2.
- the filter resistance Rm t is calculated from the flow ⁇ m t and the pressure difference over the motor filter Filtl as determined by the first pressure difference sensor D l .
- the filter resistance is representative of the pollution of the air filter: the higher the pollution, the higher the filter resistance will be.
- a preset resistance PR can be subtracted from the filter resistance R f ii t : if the difference is positive, the filter is too polluted and should be replaced or cleaned, while if the result is negative, the filter is not yet too polluted and does not yet need to be replaced or cleaned.
Landscapes
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electric Vacuum Cleaner (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016533636A JP6100977B2 (en) | 2013-11-26 | 2014-11-05 | Air filter monitoring method and apparatus |
RU2016117736A RU2664944C2 (en) | 2013-11-26 | 2014-11-05 | Air filter monitoring |
CN201480063136.5A CN105744871B (en) | 2013-11-26 | 2014-11-05 | Air filter monitoring |
PL14793191T PL3073883T3 (en) | 2013-11-26 | 2014-11-05 | Air filter monitoring |
EP14793191.9A EP3073883B1 (en) | 2013-11-26 | 2014-11-05 | Air filter monitoring |
US15/030,474 US9901233B2 (en) | 2013-11-26 | 2014-11-05 | Air filter monitoring |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13194356.5 | 2013-11-26 | ||
EP13194356 | 2013-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015078672A1 true WO2015078672A1 (en) | 2015-06-04 |
Family
ID=49641646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/073831 WO2015078672A1 (en) | 2013-11-26 | 2014-11-05 | Air filter monitoring |
Country Status (8)
Country | Link |
---|---|
US (1) | US9901233B2 (en) |
EP (1) | EP3073883B1 (en) |
JP (1) | JP6100977B2 (en) |
CN (1) | CN105744871B (en) |
PL (1) | PL3073883T3 (en) |
RU (1) | RU2664944C2 (en) |
TR (1) | TR201908589T4 (en) |
WO (1) | WO2015078672A1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160256026A1 (en) * | 2013-11-26 | 2016-09-08 | Koninklijke Philips N.V. | Air filter monitoring |
US10760804B2 (en) | 2017-11-21 | 2020-09-01 | Emerson Climate Technologies, Inc. | Humidifier control systems and methods |
DE202021103938U1 (en) | 2021-07-23 | 2021-08-06 | Sensirion Ag | Filter monitoring system |
EP3885022A1 (en) | 2020-03-24 | 2021-09-29 | Sensirion AG | Monitoring the condition of a filter |
US11226128B2 (en) | 2018-04-20 | 2022-01-18 | Emerson Climate Technologies, Inc. | Indoor air quality and occupant monitoring systems and methods |
CN114226276A (en) * | 2021-11-15 | 2022-03-25 | 威凯检测技术有限公司 | Method for screening clean air quantity of particulate matters of air purifier and testing standard prototype |
US11371726B2 (en) | 2018-04-20 | 2022-06-28 | Emerson Climate Technologies, Inc. | Particulate-matter-size-based fan control system |
US11421901B2 (en) | 2018-04-20 | 2022-08-23 | Emerson Climate Technologies, Inc. | Coordinated control of standalone and building indoor air quality devices and systems |
US11486593B2 (en) | 2018-04-20 | 2022-11-01 | Emerson Climate Technologies, Inc. | Systems and methods with variable mitigation thresholds |
US11609004B2 (en) | 2018-04-20 | 2023-03-21 | Emerson Climate Technologies, Inc. | Systems and methods with variable mitigation thresholds |
EP4183467A1 (en) | 2021-11-23 | 2023-05-24 | Philips Domestic Appliances Holding B.V. | Filter cleaning of an air treatment device |
EP4197617A1 (en) | 2021-12-20 | 2023-06-21 | Versuni Holding B.V. | Filter cleaning of an air treatment device |
EP4209161A1 (en) * | 2022-01-07 | 2023-07-12 | Black & Decker Inc. | A vacuum cleaner, controller, and a method therefor |
EP4306195A1 (en) * | 2022-07-11 | 2024-01-17 | Aigner GmbH | Method for changing the volumetric flow rate of a gaseous fluid |
US11994313B2 (en) | 2018-04-20 | 2024-05-28 | Copeland Lp | Indoor air quality sensor calibration systems and methods |
US12018852B2 (en) | 2018-04-20 | 2024-06-25 | Copeland Comfort Control Lp | HVAC filter usage analysis system |
Families Citing this family (9)
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JP2017503564A (en) * | 2013-12-18 | 2017-02-02 | ノヴォクセル リミテッド | Tissue vaporization apparatus and method |
US10288019B2 (en) * | 2016-07-21 | 2019-05-14 | Ford Global Technologies, Llc | Secondary system and method for controlling an engine |
IT201700117795A1 (en) * | 2017-10-18 | 2019-04-18 | Erretre Spa | LEATHER BOTTALING PLANT |
CN111248812B (en) * | 2018-12-03 | 2022-04-19 | 添可智能科技有限公司 | Dust collector filter screen replacement reminding method and system and dust collector |
US11304581B2 (en) | 2019-01-08 | 2022-04-19 | Bissell Inc. | Surface cleaning apparatus |
US11039723B2 (en) * | 2019-11-06 | 2021-06-22 | Bissell Inc. | Surface cleaning apparatus |
ES2912047A1 (en) * | 2020-11-23 | 2022-05-24 | Cecotec Res And Development Sl | Intelligent filling system of the deposit of a cleaning and/or disinfection and method to operate it (Machine-translation by Google Translate, not legally binding) |
DE102021124724A1 (en) | 2021-09-24 | 2023-03-30 | Miele & Cie. Kg | Household appliance, preferably a vacuum cleaner, particularly preferably a hand-held vacuum cleaner |
GB2622366A (en) * | 2022-09-13 | 2024-03-20 | Dyson Technology Ltd | A method of determining a value of a filter loading of a filter of an air-moving device |
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US4294595A (en) | 1980-07-18 | 1981-10-13 | Electrolux Corporation | Vacuum cleaner including automatic shutoff device |
US4983895A (en) * | 1986-10-08 | 1991-01-08 | Hitachi, Ltd. | Method and apparatus for operating vacuum cleaner |
EP0479609A2 (en) * | 1990-10-05 | 1992-04-08 | Hitachi, Ltd. | Vacuum cleaner and control method thereof |
US5294872A (en) | 1986-10-08 | 1994-03-15 | Hitachi, Ltd. | Method and apparatus for operating vacuum cleaner |
WO1997007728A1 (en) * | 1995-08-25 | 1997-03-06 | Philips Electronics N.V. | Vacuum cleaner with power control in dependence on a mode of operation of an electrical brush |
JP2008301878A (en) | 2007-06-05 | 2008-12-18 | Sharp Corp | Vacuum cleaner |
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GB712270A (en) | 1950-10-10 | 1954-07-21 | Edgar Peter Senne | Improvements in or relating to vacuum cleaners |
JPH0687675B2 (en) * | 1986-10-08 | 1994-11-02 | 株式会社日立製作所 | Vacuum cleaner |
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JP2983658B2 (en) * | 1991-02-14 | 1999-11-29 | 三洋電機株式会社 | Electric vacuum cleaner |
JPH0763405A (en) * | 1992-02-10 | 1995-03-10 | Daikin Ind Ltd | Air filter clogging-displaying device in convection flow type air conditioner |
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US7261762B2 (en) * | 2004-05-06 | 2007-08-28 | Carrier Corporation | Technique for detecting and predicting air filter condition |
US9120043B2 (en) * | 2006-05-30 | 2015-09-01 | 3M Innovative Properties Company | Filter sensor |
JP5185551B2 (en) * | 2007-03-19 | 2013-04-17 | 日立工機株式会社 | Dust collector |
DE102010016791B4 (en) | 2010-05-05 | 2012-03-15 | Miele & Cie. Kg | Vacuum cleaner with a filter |
EP2581022B1 (en) * | 2011-10-12 | 2014-05-21 | Black & Decker Inc. | A motor, fan and cyclonic seperation apparatus arrangement |
RU2664944C2 (en) * | 2013-11-26 | 2018-08-23 | Конинклейке Филипс Н.В. | Air filter monitoring |
-
2014
- 2014-11-05 RU RU2016117736A patent/RU2664944C2/en active
- 2014-11-05 WO PCT/EP2014/073831 patent/WO2015078672A1/en active Application Filing
- 2014-11-05 EP EP14793191.9A patent/EP3073883B1/en active Active
- 2014-11-05 TR TR2019/08589T patent/TR201908589T4/en unknown
- 2014-11-05 CN CN201480063136.5A patent/CN105744871B/en active Active
- 2014-11-05 US US15/030,474 patent/US9901233B2/en active Active
- 2014-11-05 JP JP2016533636A patent/JP6100977B2/en active Active
- 2014-11-05 PL PL14793191T patent/PL3073883T3/en unknown
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US4294595A (en) | 1980-07-18 | 1981-10-13 | Electrolux Corporation | Vacuum cleaner including automatic shutoff device |
US4983895A (en) * | 1986-10-08 | 1991-01-08 | Hitachi, Ltd. | Method and apparatus for operating vacuum cleaner |
US5294872A (en) | 1986-10-08 | 1994-03-15 | Hitachi, Ltd. | Method and apparatus for operating vacuum cleaner |
EP0479609A2 (en) * | 1990-10-05 | 1992-04-08 | Hitachi, Ltd. | Vacuum cleaner and control method thereof |
WO1997007728A1 (en) * | 1995-08-25 | 1997-03-06 | Philips Electronics N.V. | Vacuum cleaner with power control in dependence on a mode of operation of an electrical brush |
JP2008301878A (en) | 2007-06-05 | 2008-12-18 | Sharp Corp | Vacuum cleaner |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160256026A1 (en) * | 2013-11-26 | 2016-09-08 | Koninklijke Philips N.V. | Air filter monitoring |
US9901233B2 (en) * | 2013-11-26 | 2018-02-27 | Koninklijke Philips N.V. | Air filter monitoring |
US10760804B2 (en) | 2017-11-21 | 2020-09-01 | Emerson Climate Technologies, Inc. | Humidifier control systems and methods |
US10760803B2 (en) | 2017-11-21 | 2020-09-01 | Emerson Climate Technologies, Inc. | Humidifier control systems and methods |
US10767878B2 (en) | 2017-11-21 | 2020-09-08 | Emerson Climate Technologies, Inc. | Humidifier control systems and methods |
US11371726B2 (en) | 2018-04-20 | 2022-06-28 | Emerson Climate Technologies, Inc. | Particulate-matter-size-based fan control system |
US11226128B2 (en) | 2018-04-20 | 2022-01-18 | Emerson Climate Technologies, Inc. | Indoor air quality and occupant monitoring systems and methods |
US12018852B2 (en) | 2018-04-20 | 2024-06-25 | Copeland Comfort Control Lp | HVAC filter usage analysis system |
US11609004B2 (en) | 2018-04-20 | 2023-03-21 | Emerson Climate Technologies, Inc. | Systems and methods with variable mitigation thresholds |
US11421901B2 (en) | 2018-04-20 | 2022-08-23 | Emerson Climate Technologies, Inc. | Coordinated control of standalone and building indoor air quality devices and systems |
US11486593B2 (en) | 2018-04-20 | 2022-11-01 | Emerson Climate Technologies, Inc. | Systems and methods with variable mitigation thresholds |
US11994313B2 (en) | 2018-04-20 | 2024-05-28 | Copeland Lp | Indoor air quality sensor calibration systems and methods |
EP3885022A1 (en) | 2020-03-24 | 2021-09-29 | Sensirion AG | Monitoring the condition of a filter |
DE202021103938U1 (en) | 2021-07-23 | 2021-08-06 | Sensirion Ag | Filter monitoring system |
WO2023001638A1 (en) | 2021-07-23 | 2023-01-26 | Sensirion Ag | Filter monitoring system |
CN114226276B (en) * | 2021-11-15 | 2023-11-10 | 威凯检测技术有限公司 | Method for screening clean air quantity testing standard prototype of particulate matters of air purifier |
CN114226276A (en) * | 2021-11-15 | 2022-03-25 | 威凯检测技术有限公司 | Method for screening clean air quantity of particulate matters of air purifier and testing standard prototype |
EP4183467A1 (en) | 2021-11-23 | 2023-05-24 | Philips Domestic Appliances Holding B.V. | Filter cleaning of an air treatment device |
WO2023094077A1 (en) | 2021-11-23 | 2023-06-01 | Philips Domestic Appliances Holding B.V. | Filter cleaning of an air treatment device |
EP4197617A1 (en) | 2021-12-20 | 2023-06-21 | Versuni Holding B.V. | Filter cleaning of an air treatment device |
WO2023117408A1 (en) | 2021-12-20 | 2023-06-29 | Philips Domestic Appliances Holding B.V. | Filter cleaning of an air treatment device |
EP4209161A1 (en) * | 2022-01-07 | 2023-07-12 | Black & Decker Inc. | A vacuum cleaner, controller, and a method therefor |
EP4306195A1 (en) * | 2022-07-11 | 2024-01-17 | Aigner GmbH | Method for changing the volumetric flow rate of a gaseous fluid |
Also Published As
Publication number | Publication date |
---|---|
PL3073883T3 (en) | 2019-09-30 |
TR201908589T4 (en) | 2019-07-22 |
EP3073883A1 (en) | 2016-10-05 |
JP6100977B2 (en) | 2017-03-22 |
RU2016117736A (en) | 2017-11-10 |
JP2016540633A (en) | 2016-12-28 |
EP3073883B1 (en) | 2019-04-03 |
RU2664944C2 (en) | 2018-08-23 |
CN105744871B (en) | 2019-08-02 |
US20160256026A1 (en) | 2016-09-08 |
CN105744871A (en) | 2016-07-06 |
US9901233B2 (en) | 2018-02-27 |
RU2016117736A3 (en) | 2018-06-13 |
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