GB2309746A - Fan controller - Google Patents

Fan controller Download PDF

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Publication number
GB2309746A
GB2309746A GB9602233A GB9602233A GB2309746A GB 2309746 A GB2309746 A GB 2309746A GB 9602233 A GB9602233 A GB 9602233A GB 9602233 A GB9602233 A GB 9602233A GB 2309746 A GB2309746 A GB 2309746A
Authority
GB
United Kingdom
Prior art keywords
controller
fan
sensing means
vary
ventilation
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.)
Granted
Application number
GB9602233A
Other versions
GB9602233D0 (en
GB2309746B (en
Inventor
Philip John West
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.)
Nuaire Ltd
Original Assignee
Nuaire Ltd
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 Nuaire Ltd filed Critical Nuaire Ltd
Priority to GB9602233A priority Critical patent/GB2309746B/en
Publication of GB9602233D0 publication Critical patent/GB9602233D0/en
Publication of GB2309746A publication Critical patent/GB2309746A/en
Application granted granted Critical
Publication of GB2309746B publication Critical patent/GB2309746B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ventilation (AREA)

Abstract

A controller 10 for a ventilation or extraction fan 14 comprises a sensor 12 (e.g. a Hall effect sensor) which provides an output dependent upon the amount of electrical power drawn by an electrical appliance 16 (particularly a cooker hob for which the fan 14 is provided): the controller 10 is arranged to vary the speed of the fan 14 according to the output of the sensor 12.

Description

Fan Controller The present invention relates to a fan controller intended for, but not limited to a cooker hob extraction fan.
In many circumstances, it is required to vary the speed of a fan in response to one or more environmental conditions.
An example is a cooker hob extraction fan, by means of which the undesirable build up of heat, water vapour and odours in the airspace surrounding the cooker may be alleviated.
It is known to provide a controller for such a fan which will vary its speed in response to an input from a temperature or a humidity sensor. However, a combination of such sensors would be required in order to fully take into account the range of conditions to be expected during the day to day operation of a cooker and these can require substantial amounts of work to fit.
We have now devised a fan controller which is of simple construction, is relatively easy to fit, and which functions in an effective manner.
In accordance with the present invention, there is provided a ventilation or extraction fan controller comprising sensing means for providing an output dependent upon the amount of electrical power drawn by an appliance, and arranged to vary the speed of a fan according to the output of said sensing means.
In use of this fan controller with an appliance which comprises a cooker hob, its function is based upon an approximate correlation which we have found to exist, between levels of excess heat and water vapour and the rate of electrical power consumption by the cooker.
Preferably the sensing means provides an output according to the amount of current drawn by the appliance.
Preferably the output of the sensing means is a variable voltage signal.
Preferably the sensing means comprises a Hall effect device.
Preferably the controller is arranged for varying the voltage supplied to the fan in order to vary its speed, either continuously or in discrete steps.
Preferab]y the controller further comprises manual override means for switching the fan on or off.
Preferably the appliance has a single phase 110 or 240v, or a three phase 400 or 440v electrical supply.
Preferably the controller is either external to or is integrated within the appliance.
An embodiment of the present invention will now be described by way of example only and with reference to the accompanying drawing, the single figure of which is a schematic diagram of an extraction fan controller in accordance with the present invention.
Referring to the drawing, there is shown a controller 10 and a Hall effect sensor 12 which supplies a low voltage output to the controller 10 which in turn varies the output voltage to a fan 14. Hall effect sensor 12 encircles the live cable L of a single phase supply having live, neutral and earth connections L,N,E to a cooker hob 16, and varies its output voltage according to the amount of current flowing in that cable. The use of such a device has the advantage of electrically isolating the control circuitry from the appliance supply and is relatively easily fitted.
In the specific embodiment illustrated, fan 14 operates from a voltage supplied by the controller directly, however it would remain in accordance with the present invention for the fan 14 to have an independent voltage supply controlled indirectly by the controller 10.
The power sensing fan controller, as described above, obviates the need for a plurality of enviromental sensors and their associated circuitry and provides an efficient electrically isolated control means for a ventilation or extraction fan.

Claims (6)

Claims
1) A ventilation or extraction fan controller, comprising sensing means for providing an output dependent upon the amount of electrical power drawn by an electrical appliance, and arranged to vary the speed of a ventilation or extraction fan according to the output of said sensing means.
2) A controller is claimed in claim 1, in which said sensing means is arranged to provide an output according to the amount of current drawn by said electrical appliance.
3) A controller as claimed in claim 1 or 2, in which said sensing means comprises a Hall effect device.
4) A controller as claimed in any preceding claim, arranged for varying the voltage supplied to said fan in order to vary its speed continuously.
5) A controller as claimed in any one of claims 1 to 3, arranged for varying the voltage supplied to said fan in order to vary its speed in discrete steps.
6) A ventilation or extraction fan controller in combination with an electrical cooker hob, substantially as herein described with reference to the accompanying drawings.
6) A ventilation or extraction fan controller substantially as herein described with reference to the accompanying drawings.
Amendments to the claims have been filed as follows Claims 1) A ventilation or extraction fan controller in combination with an electrical cooker hob, said controller comprising sensing means for providing an output dependent upon the amount of electrical power drawn by said cooker hob, and being arranged to vary the speed of a ventilation or extraction fan according to the output of said sensing means.
2) A controller and cooker hob combination as claimed in claim 1, in which said sensing means is arranged to provide an output according to the amount of current drawn by said cooker hob.
3) A controller and cooker hob combination as claimed in claim 1 or 2, in which said sensing means comprises a Hall effect device.
4) A controller and cooker hob combination as claimed in any preceding claim, in which said controller is arranged for varying the voltage supplied to said fan in order to vary its speed continuously.
5) A controller and cooker hob combination as claimed in any one of claims 1 to 3, in which said controller is arranged for varying the voltage supplied to said fan in order to vary its speed in discrete steps.
GB9602233A 1996-02-05 1996-02-05 Fan controller Expired - Lifetime GB2309746B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9602233A GB2309746B (en) 1996-02-05 1996-02-05 Fan controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9602233A GB2309746B (en) 1996-02-05 1996-02-05 Fan controller

Publications (3)

Publication Number Publication Date
GB9602233D0 GB9602233D0 (en) 1996-04-03
GB2309746A true GB2309746A (en) 1997-08-06
GB2309746B GB2309746B (en) 1999-08-18

Family

ID=10788099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9602233A Expired - Lifetime GB2309746B (en) 1996-02-05 1996-02-05 Fan controller

Country Status (1)

Country Link
GB (1) GB2309746B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010949A2 (en) * 1998-12-16 2000-06-21 AEG Hausgeräte GmbH Device combination, comprising a cooking apparatus and a vapour-exhaust extraction system and method for using such a combination
GB2396209A (en) * 2002-12-10 2004-06-16 Phillip John West Fan controller
CN103542439A (en) * 2012-07-11 2014-01-29 博西华电器（江苏）有限公司 Kitchen ventilator and control method thereof
WO2018051178A1 (en) * 2016-09-13 2018-03-22 P.G.A. Srl System for automating the switching on, adjustment and/or switching off of one or more accessories for cooktops
EP3859214A3 (en) * 2020-01-31 2021-12-01 Wesco Ag Method for operating a vapour extraction device for a kitchen appliance, preferably for a cooking hob with several hotplates

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115143495A (en) * 2021-03-30 2022-10-04 耀主科技股份有限公司 Air exhaust control device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1288932A (en) * 1969-02-06 1972-09-13
GB2115922A (en) * 1982-03-01 1983-09-14 Gec Xpelair Ltd Ventilation apparatus
GB2210966A (en) * 1987-10-01 1989-06-21 Hunter Int Ltd Ventilating fan control arrangement
EP0584713A1 (en) * 1992-08-21 1994-03-02 T. Smedegaard A/S Method of controlling an electric motor driving a centrifugal pump
JPH07174377A (en) * 1993-12-17 1995-07-14 Matsushita Seiko Co Ltd Ventilator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4041798C2 (en) * 1990-02-10 1999-10-28 Miele & Cie Extractor hood control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1288932A (en) * 1969-02-06 1972-09-13
GB2115922A (en) * 1982-03-01 1983-09-14 Gec Xpelair Ltd Ventilation apparatus
GB2210966A (en) * 1987-10-01 1989-06-21 Hunter Int Ltd Ventilating fan control arrangement
EP0584713A1 (en) * 1992-08-21 1994-03-02 T. Smedegaard A/S Method of controlling an electric motor driving a centrifugal pump
JPH07174377A (en) * 1993-12-17 1995-07-14 Matsushita Seiko Co Ltd Ventilator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010949A2 (en) * 1998-12-16 2000-06-21 AEG Hausgeräte GmbH Device combination, comprising a cooking apparatus and a vapour-exhaust extraction system and method for using such a combination
EP1010949A3 (en) * 1998-12-16 2001-10-04 AEG Hausgeräte GmbH Device combination, comprising a cooking apparatus and a vapour-exhaust extraction system and method for using such a combination
GB2396209A (en) * 2002-12-10 2004-06-16 Phillip John West Fan controller
GB2396209B (en) * 2002-12-10 2007-01-03 Phillip John West Fan controller
CN103542439A (en) * 2012-07-11 2014-01-29 博西华电器（江苏）有限公司 Kitchen ventilator and control method thereof
CN103542439B (en) * 2012-07-11 2018-01-09 博西华电器（江苏）有限公司 Smoke exhaust ventilator and its control method
WO2018051178A1 (en) * 2016-09-13 2018-03-22 P.G.A. Srl System for automating the switching on, adjustment and/or switching off of one or more accessories for cooktops
EP3859214A3 (en) * 2020-01-31 2021-12-01 Wesco Ag Method for operating a vapour extraction device for a kitchen appliance, preferably for a cooking hob with several hotplates

Also Published As

Publication number Publication date
GB9602233D0 (en) 1996-04-03
GB2309746B (en) 1999-08-18

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20160204