EP1571394A1 - Dispositif de commande électronique pour un moteur électrique de ventilateur de brûleur - Google Patents

Dispositif de commande électronique pour un moteur électrique de ventilateur de brûleur Download PDF

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Publication number
EP1571394A1
EP1571394A1 EP04425137A EP04425137A EP1571394A1 EP 1571394 A1 EP1571394 A1 EP 1571394A1 EP 04425137 A EP04425137 A EP 04425137A EP 04425137 A EP04425137 A EP 04425137A EP 1571394 A1 EP1571394 A1 EP 1571394A1
Authority
EP
European Patent Office
Prior art keywords
electric motor
speed
signal
input
operating mode
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
EP04425137A
Other languages
German (de)
English (en)
Other versions
EP1571394B1 (fr
Inventor
Attiliano Gambaretto
Giuseppe Toniato
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.)
Riello SpA
Original Assignee
Riello SpA
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 Riello SpA filed Critical Riello SpA
Priority to ES04425137.9T priority Critical patent/ES2611010T3/es
Priority to EP04425137.9A priority patent/EP1571394B1/fr
Priority to PL04425137T priority patent/PL1571394T3/pl
Priority to CN2005100531035A priority patent/CN1665122A/zh
Publication of EP1571394A1 publication Critical patent/EP1571394A1/fr
Application granted granted Critical
Publication of EP1571394B1 publication Critical patent/EP1571394B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/08—Regulating air supply or draught by power-assisted systems
    • F23N3/082—Regulating air supply or draught by power-assisted systems using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed

Definitions

  • the present invention relates to an electronic regulating device for an electric motor applied to a fuel burner ventilator.
  • a gas or vapourized liquid fuel burner is supplied with a mixture of fuel and combustion air; and the combustion air supply to the burner is regulated by a ventilator driven by an electric motor, the speed of which is controlled by a flame control device commonly used to control operation of the fuel burner.
  • the flame control device is normally equipped with an electric control card for processing physical flame combustion parameters to regulate the fuel and combustion air mixture according to the desired calories.
  • the electronic control card therefore has one or more outputs for controlling the speed of the electric motor, so as to regulate combustion air supply by the ventilator on the basis of processing by the electronic control card.
  • a first type comprises two-stage burners, commonly used in floor-mounted boilers, in which the flame control device directly controls electric power supply to the motor by a motor output (current phase).
  • a second type comprises modulating burners, commonly used in wall-mounted boilers, in which the flame control device modulates the speed of the ventilator by a PWM (Pulse Width Modulation) signal, i.e. by varying the duty cycle of a square-wave signal.
  • PWM Pulse Width Modulation
  • electric motors for two-stage burners simply have an input for receiving electric power supply directly from the motor output of the flame control device; and electric motors for modulating burners simply have a PWM input for connection to the corresponding PWM output of the flame control device.
  • an electronic regulating device for an electric motor applied to a fuel burner ventilator as claimed in Claim 1 and, preferably, in any one of the following Claims depending directly or indirectly on Claim 1.
  • Number 1 in Figure 1 indicates as a whole an electronic regulating device for regulating the speed of an electric motor 2 applied to a ventilator (not shown) of a fuel burner (not shown).
  • Regulating device 1 comprises a programmable device (microcontroller) 3; a speed sensor 4 for supplying a signal proportional to the speed of electric motor 2; a switching device 5 for regulating the voltage supplied to electric motor 2; and a selector 6 for selecting the operating mode of programmable device 3.
  • electric motor 2 is a brushless motor
  • speed sensor 4 is a Hall sensor
  • switching device 5 is based on MOSFET transistors.
  • Regulating device 1 is controlled by a number of inputs, in particular an electric power supply input 7; a first-stage control input 8; a second-stage control input 9; a PWM (Pulse Width Modulation) input 10; and a three-point modulation input 11.
  • a number of inputs in particular an electric power supply input 7; a first-stage control input 8; a second-stage control input 9; a PWM (Pulse Width Modulation) input 10; and a three-point modulation input 11.
  • Electric power supply input 7 is connected to a rectifying block 12 to convert a 230 volt alternating voltage phase to a 230 volt direct voltage required to electrically power electric motor 2 by means of switching device 5; and a DC/DC converter 13 is cascade-connected to rectifying block 12 to convert the 230 volt direct voltage to a 5 volt direct voltage required to electrically power programmable device 3 and speed sensor 4.
  • First-stage control input 8, second-stage control input 9, PWM input 10, and three-point modulation input 11 supply respective signals directly to programmable device 3, which also receives a signal proportional to the speed of electric motor 2 from speed sensor 4, a feedback signal from switching device 5 and filtered by an integrating circuit 14, and three constant calibration signals from respective potentiometers (trimmers) 15, 16, 17.
  • Programmable device 3 processes the above signals to control switching device 5, which electrically powers electric motor 2, and to supply an output signal, proportional to the speed of electric motor 2, at an RPM output 18 of regulating device 1.
  • Electric power supply input 7, first-stage control input 8, second-stage control input 9, PWM input 10, three-point modulation input 11, and RPM output 18 are connected respectively to respective outputs and to a respective input of a generic external flame control device (not shown) for controlling overall operation of the fuel burner.
  • first-stage control input 8 and second-stage control input 9 interpret two-state ("ON”, “OFF") signals from a two-stage burner flame control device; three-point modulation input 11 interprets a three-state ("DOWN”, “UP”, “ZERO") signal from an external power regulator (not shown) controlled by the flame control device of a more sophisticated two-stage burner; and PWM input 10 interprets a PWM signal from a flame control device of a wall-mounted boiler burner.
  • RPM output 18 and PWM input 10 are preferably provided with respective optocouplers 20, 19 to protect programmable device 3 from voltage peaks and/or spurious input currents.
  • Programmable device 3 is programmed (firmware) to process the above signals and accordingly control switching device 5 to regulate the speed of electric motor 2 using a regulating method shown schematically in the Figure 2 flow chart.
  • programmable device 3 continuously monitors the state of selector 6, which selects the operating mode of regulating device 1 and, therefore, the way in which programmable device 3 processes the signals from inputs 8, 9, 10, 11 of regulating device 1.
  • programmable device 3 In a first (two-stage) operating mode, programmable device 3 :
  • programmable device 3 In a second (PWM) operating mode, programmable device 3 :
  • programmable device 3 In a third (three-point modulation) operating mode, programmable device 3 :
  • the main advantage of the present invention is that of providing an electronic regulating device 1, for an electric motor 2 applied to a fuel burner ventilator, which can be integrated with the motor and interfaced with any known flame control device to obtain a more versatile motor assembly comprising electric motor 2 and regulating device 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
EP04425137.9A 2004-03-02 2004-03-02 Dispositif de commande électronique et moteur électrique de ventilateur de brûleur Expired - Lifetime EP1571394B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES04425137.9T ES2611010T3 (es) 2004-03-02 2004-03-02 Dispositivo de regulación electrónica y motor eléctrico aplicado a un ventilador del quemador
EP04425137.9A EP1571394B1 (fr) 2004-03-02 2004-03-02 Dispositif de commande électronique et moteur électrique de ventilateur de brûleur
PL04425137T PL1571394T3 (pl) 2004-03-02 2004-03-02 Elektroniczne urządzenie regulacyjne oraz silnik elektryczny stosowane do wentylatora palnika
CN2005100531035A CN1665122A (zh) 2004-03-02 2005-03-02 用于施加到燃烧装置通风设备上的电动机的电子调节装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425137.9A EP1571394B1 (fr) 2004-03-02 2004-03-02 Dispositif de commande électronique et moteur électrique de ventilateur de brûleur

Publications (2)

Publication Number Publication Date
EP1571394A1 true EP1571394A1 (fr) 2005-09-07
EP1571394B1 EP1571394B1 (fr) 2016-12-07

Family

ID=34746223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425137.9A Expired - Lifetime EP1571394B1 (fr) 2004-03-02 2004-03-02 Dispositif de commande électronique et moteur électrique de ventilateur de brûleur

Country Status (4)

Country Link
EP (1) EP1571394B1 (fr)
CN (1) CN1665122A (fr)
ES (1) ES2611010T3 (fr)
PL (1) PL1571394T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1843095A2 (fr) * 2006-04-07 2007-10-10 Thomas & Betts International, Inc. Système et procédé pour la modulation de l'air de combustion d'un système de chauffage à gaz

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5513979A (en) * 1993-03-05 1996-05-07 Landis & Gyr Business Support A.G. Control or regulating system for automatic gas furnaces of heating plants
US5732691A (en) * 1996-10-30 1998-03-31 Rheem Manufacturing Company Modulating furnace with two-speed draft inducer
WO2001094847A2 (fr) * 2000-06-08 2001-12-13 Honeywell International Inc. Systeme de commande d'appareil reparti a localisation des pannes
US20030030408A1 (en) * 2001-07-12 2003-02-13 Ratz James W. Variable speed controller for air moving applications using an AC induction motor
US20040007196A1 (en) * 2002-07-15 2004-01-15 Jonathan Young Vehicle heater and controls therefor
US20040033140A1 (en) * 2000-03-02 2004-02-19 New Power Concepts Llc Metering fuel pump
US20040043345A1 (en) * 2002-08-30 2004-03-04 Jaeschke Horst Eric Apparatus and methods for variable furnace control

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5513979A (en) * 1993-03-05 1996-05-07 Landis & Gyr Business Support A.G. Control or regulating system for automatic gas furnaces of heating plants
US5732691A (en) * 1996-10-30 1998-03-31 Rheem Manufacturing Company Modulating furnace with two-speed draft inducer
US20040033140A1 (en) * 2000-03-02 2004-02-19 New Power Concepts Llc Metering fuel pump
WO2001094847A2 (fr) * 2000-06-08 2001-12-13 Honeywell International Inc. Systeme de commande d'appareil reparti a localisation des pannes
US20030030408A1 (en) * 2001-07-12 2003-02-13 Ratz James W. Variable speed controller for air moving applications using an AC induction motor
US20040007196A1 (en) * 2002-07-15 2004-01-15 Jonathan Young Vehicle heater and controls therefor
US20040043345A1 (en) * 2002-08-30 2004-03-04 Jaeschke Horst Eric Apparatus and methods for variable furnace control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1843095A2 (fr) * 2006-04-07 2007-10-10 Thomas & Betts International, Inc. Système et procédé pour la modulation de l'air de combustion d'un système de chauffage à gaz
EP1843095A3 (fr) * 2006-04-07 2010-01-20 Thomas & Betts International, Inc. Système et procédé pour la modulation de l'air de combustion d'un système de chauffage à gaz
US7802984B2 (en) 2006-04-07 2010-09-28 Thomas & Betts International, Inc. System and method for combustion-air modulation of a gas-fired heating system

Also Published As

Publication number Publication date
PL1571394T3 (pl) 2017-06-30
EP1571394B1 (fr) 2016-12-07
ES2611010T3 (es) 2017-05-04
CN1665122A (zh) 2005-09-07

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