DE3360774D1 - Indicator in an air filter - Google Patents

Indicator in an air filter

Info

Publication number
DE3360774D1
DE3360774D1 DE8383850114T DE3360774T DE3360774D1 DE 3360774 D1 DE3360774 D1 DE 3360774D1 DE 8383850114 T DE8383850114 T DE 8383850114T DE 3360774 T DE3360774 T DE 3360774T DE 3360774 D1 DE3360774 D1 DE 3360774D1
Authority
DE
Germany
Prior art keywords
cell
capacitor
filter
clean
charged
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8383850114T
Other languages
German (de)
Inventor
Oskar Arne Andersson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux AB
Original Assignee
Electrolux AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux AB filed Critical Electrolux AB
Application granted granted Critical
Publication of DE3360774D1 publication Critical patent/DE3360774D1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Projection Apparatus (AREA)
  • Color Television Image Signal Generators (AREA)
  • Glass Compositions (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Electrostatic Separation (AREA)

Abstract

An arrangement for indication of the need to clean a filter, e.g. in a stove hood, has a time circuit actuated by a push button during at least 0,5 second, whereby a capacitor is charged. After the push button has returned to rest a discharging of the capacitor takes place during some 4-5 minutes, simultaneously an E-cell is charged by some 1 mA. When the discharging of the capacitor is finished the E-cell is connected in a circuit with an opposite current direction and an amperage, which is proportional to the current of the ventilator motor, and a signal lamp is put out. When the ventilator motor is not in duty, nothing is going on in the E-cell, as no current passes. A condition for making the cell work is that the voltage on it exceeds a step of some 1 V. This is the voltage step which can be used just for the reason that no reduction of time to the next cleaning shall take place when the motor works at minimum rpm. When finally the E-cell is discharged a signal lamp indicates <<clean the filter>>.
DE8383850114T 1982-05-11 1983-05-03 Indicator in an air filter Expired DE3360774D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8202948A SE431025B (en) 1982-05-11 1982-05-11 AIR FILTER INDICATOR

Publications (1)

Publication Number Publication Date
DE3360774D1 true DE3360774D1 (en) 1985-10-17

Family

ID=20346774

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383850114T Expired DE3360774D1 (en) 1982-05-11 1983-05-03 Indicator in an air filter

Country Status (7)

Country Link
EP (1) EP0094360B1 (en)
AT (1) ATE15537T1 (en)
DE (1) DE3360774D1 (en)
DK (1) DK193683A (en)
FI (1) FI831587L (en)
NO (1) NO153383C (en)
SE (1) SE431025B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10158851A1 (en) 2001-11-30 2003-06-12 Bsh Bosch Siemens Hausgeraete Service life detection device for a filter of an extractor hood
DE102010043538A1 (en) 2010-11-08 2012-05-10 BSH Bosch und Siemens Hausgeräte GmbH Filter with evaluation device
CN103672995B (en) * 2012-08-31 2016-02-10 芜湖美的厨卫电器制造有限公司 The air quantity autocontrol method of range hood and range hood
CN112013435B (en) * 2019-05-30 2021-11-26 宁波方太厨具有限公司 Self-cleaning detection method of range hood based on direct current motor drive

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2353756A1 (en) * 1973-10-26 1975-05-15 Vdo Schindling MAINTENANCE OR INSPECTION DISPLAY DEVICE FOR MOTOR VEHICLES
DE2748913C3 (en) * 1977-11-02 1981-11-05 Neff - Werke, Carl Neff Gmbh, 7518 Bretten Extractor hood with a device for displaying the degree of saturation for its fat and / or odor filter
DE2816406A1 (en) * 1978-04-15 1979-10-18 Weiss Kg Alfons Extractor hood with fat and odour filters - has warning signals indicating saturation point of filter and stopping filter action
US4348664A (en) * 1978-10-30 1982-09-07 Elder Pharmaceuticals, Inc. Device for measuring ultraviolet light exposure
DE2852472A1 (en) * 1978-12-05 1980-06-12 Seuffer Robert Gmbh & Co Domestic cooker air filter clogging indicator - uses coloured liquid in capillary vessel evaporated by fan drive motor current

Also Published As

Publication number Publication date
SE431025B (en) 1983-12-27
DK193683A (en) 1983-11-12
ATE15537T1 (en) 1985-09-15
DK193683D0 (en) 1983-05-02
FI831587L (en) 1983-11-12
EP0094360A1 (en) 1983-11-16
SE8202948L (en) 1983-11-12
NO153383B (en) 1985-11-25
SE8202948D0 (en) 1982-05-11
FI831587A0 (en) 1983-05-09
EP0094360B1 (en) 1985-09-11
NO153383C (en) 1986-03-05
NO831665L (en) 1983-11-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee