EP2360434B1 - Dunstabzugshaube und Steuerverfahren dafür - Google Patents

Dunstabzugshaube und Steuerverfahren dafür Download PDF

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Publication number
EP2360434B1
EP2360434B1 EP11000884.4A EP11000884A EP2360434B1 EP 2360434 B1 EP2360434 B1 EP 2360434B1 EP 11000884 A EP11000884 A EP 11000884A EP 2360434 B1 EP2360434 B1 EP 2360434B1
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EP
European Patent Office
Prior art keywords
fan
motor
cooking
extractor hood
control
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EP11000884.4A
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English (en)
French (fr)
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EP2360434A1 (de
Inventor
Nicolas Barjolin
Didier Gouardo
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Groupe Brandt SAS
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Groupe Brandt SAS
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Publication of EP2360434A1 publication Critical patent/EP2360434A1/de
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    • 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

Definitions

  • the present invention relates on the one hand to a cooking fume extraction hood, in particular to a domestic cooking fume extraction hood, provided with at least one fume extraction fan and control means. in operation of said at least one fan.
  • It also relates to a control method of a fume extraction hood equipped with at least one fume extraction fan and operating control means of said at least one fan.
  • a fume hood having fume extraction means comprising for example a fan provided with a motor and a turbine.
  • suction hoods are equipped with control means in operation of the suction means, for triggering manually or automatically the operation of the suction means during the presence of cooking fumes.
  • Operating control means are thus known for operating a fan of a fume hood used to circulate a flow of air at a low air flow rate by controlling the motor of said blower at a most rapid rotation speed. low possible over a short period, of the order of a few minutes per hour, so as to limit noise.
  • hoods have the disadvantage of controlling the fan motor at a fixed rotational speed to be sufficient to allow the operation of said engine in all operating conditions, especially when the engine is cold or the voltage power supply network is weak.
  • the fan of these suction hoods is triggered at different times when the control of the latter by the control means.
  • DE 10 2004 055 944 A1 which describes a device for ventilating a cooking surface or the area surrounding it.
  • This device comprises a fan, a device used to activate the latter so that it operates at a certain power and for a period of time at periodic intervals and an adjusting device comprising an input element for activating the intermittent ventilation.
  • the object of the present invention is to solve the aforementioned drawbacks and to propose a fume extraction hood and a control method for such a fume hood making it possible to obtain a flow of air sucked by at least one fan at a reduced air flow while consuming a minimum of energy and by limiting the level of noise, while ensuring operation without damage to the engine and without causing additional cost to obtain said hood.
  • the present invention aims, in a first aspect, a fume extraction hood with at least one fume extraction fan, control means in operation of said at least one fan, said minus a fan comprising a motor and a turbine.
  • said control means regulate a flow of air sucked by said at least one fan to a value of air flow by means of a control of said motor in a succession of at least acceleration ramps and deceleration of said engine.
  • the average rotational speed of the motor of said at least one fan of the suction hood is reduced by means of a succession of at least ramps of acceleration and deceleration of said motor so as to use the inertia of the turbine said at least one fan and to obtain suction fumes cooking at a reduced air flow, regular and limiting noise.
  • the motor control of the at least one fan in a succession of at least ramps of acceleration and deceleration of said motor also ensures operation without damage to said engine in all operating conditions, especially when the engine is cold or the voltage sector is weak.
  • this motor control of said at least one fan following ramps of acceleration and deceleration of said motor ensures the suction efficiency and without causing additional cost to obtain the suction hood.
  • a suction hood according to the invention makes it possible to create an air flow generated by said at least one fan at an air flow rate value in a continuous manner and without starting the rotary drive of the turbine of said minus one fan at a specified frequency.
  • said control means regulate said air flow sucked by said at least one fan to said air flow value outside the cooking periods implemented by a hob.
  • the air contained in a room such as a kitchen is sucked so as to extract cooking fumes or odors outside the cooking periods implemented by a hob, and to renew the air in the kitchen.
  • a room such as a kitchen
  • evacuating and / or treating smells of cigarette smoke especially for evacuating and / or treating smells of cigarette smoke.
  • a suction hood according to the invention makes it possible to replace or supplement a conventional controlled mechanical ventilation device set up in homes, and in particular in kitchens.
  • Such a suction hood allows by means of a motor control of said at least one fan to drive the turbine thereof at a low rotational speed so as to minimize the consumption of electrical energy and to limit the level noise nuisance in this mode of operation outside cooking periods implemented by a hob, while ensuring operation without damage to the engine of said at least one fan and the suction efficiency of cooking fumes.
  • said airflow value of said at least one fan outside the cooking periods implemented by a hob is less than an operating airflow value of said at least one fan during periods of operation. cooking implemented by said hob.
  • the present invention aims, according to a second aspect, a control method of a fume hood fume hood comprising at least one fume extraction fan, operating control means of said at least one fan, said at least one fan comprising a motor and a turbine.
  • This method of controlling a fume extraction hood has advantages similar to those described above with reference to the hood fume extraction cooking according to the invention.
  • the flow of air sucked by said at least one fan is regulated to an air flow value by means of a succession of at least ramps of acceleration and deceleration of the motor control of said at least one fan.
  • This regulation of the airflow sucked by the at least one fan makes it possible to reduce the rotational speed of the motor of the at least one fan of the extractor hood by means of a succession of at least one acceleration and deceleration ramps. said engine so as to use the inertia of the turbine of said at least one fan and to obtain a suction of cooking fumes at a reduced air flow, regular and limiting noise.
  • such a suction hood 1 is intended to be placed above a hob 2 to suck, and to evacuate and / or treat the fumes from cooking food on the table of cooking 2.
  • This suction hood 1 comprises in known manner at least one suction fan for cooking fumes 3.
  • said at least one fan 3 comprises a motor 4 and a turbine 5 for sucking the cooking fumes during cooking periods implemented by a hob 2.
  • a control device 6, as illustrated in FIG. figure 3 makes it possible to control the operation of said at least one fan 3, in particular the operation of the motor 4 for rotating the turbine 5 of said at least one fan 3.
  • the control device 6 of the operation of the suction hood 1 comprises in particular control means 7 themselves, such as for example at least one microcontroller 12, for controlling the operation of said at least one fan 3, via its motor. 4.
  • control panel 8 comprising selection means 9, such as for example touch keys, buttons, and possibly display means 10, such as for example a display, lights.
  • a comparator 11 is further adapted to detect the crossing of the zero value of the mains voltage U A.
  • the control means 7, 12 of the motor 4 use a gradation of the mains voltage U A by means of a triac 13 controlled by a microcontroller 12.
  • the control means 7, 12 carrying out the regulation of the air flow sucked by said at least one fan 3 use a gradation of the mains voltage U A by means of the triac 13 controlled by the microcontroller 12.
  • This gradation of the mains voltage U A consists of applying a set of conduction times to the triac 13 in an open loop.
  • the triac 13 makes it possible to accurately apply or not to apply the mains voltage U A to the terminals of the motor 4 of said at least one fan 3 so as to implement this gradation of the mains voltage U A.
  • a sector synchronization signal U B is derived from the mains voltage U A allowing the microcontroller 12 to determine the moment when the triac 13 is to be initiated.
  • the triac 13 is initiated according to the sector synchronization signal U B from the mains voltage U A.
  • the microcontroller 12 generates a control signal U c of the triac 13 for controlling the operation of the motor 4 of said at least one fan 3.
  • the motor 4 of said at least one fan 3 has a voltage U D at its terminals depending on the mains voltage U A and the control signal U C of the triac 13.
  • the mains voltage U A is defined by a sector period consisting of a positive half cycle and a negative half cycle.
  • the control device 6 of the operation of the suction hood 1 is supplied with electrical energy with the mains voltage U A and delivers the sector synchronization signal U B from the mains voltage U A , the control signal U C of the triac 13 generated by the microcontroller 12 from the sector synchronization signal U B , and the resulting voltage U D at the terminals of the motor 4 from the mains voltage U A and the control signal U C of the triac 13.
  • the voltage U D applied across the motor 4 is limited to a fraction of an alternation of the mains voltage U A.
  • the control device 6 of the operation of the suction hood 1 is adapted to synchronize the microcontroller 12 with the passage to the zero value of the mains voltage U A by means of the comparator 11 so as to obtain precise control of the triac 13.
  • the microcontroller 12 counts the time before the priming of the triac 13 so as to control said triac 13 at the precise instant when the voltage U D is at apply to the motor terminals 4.
  • said triac 13 opens of itself when the current flowing in the motor 4 is canceled, that is to say say at the end of each alternation of the mains voltage U A. Therefore, the triac 13 must be initiated during each alternation of the mains voltage U A.
  • the control means 7, 12 regulate a flow of air sucked by said at least one fan 3 to an air flow value by means of a control of the engine 4 in a succession of at least acceleration ramps A and of deceleration D of said engine 4, as illustrated in FIGS. Figures 2A and 2B .
  • This air flow rate, said reduced, of said at least one fan 3 may be less than an operating air flow value of said at least one fan 3 generated by a fixed minimum rotation speed of the motor 4 of said at least one fan 3.
  • the average speed of rotation of the motor 4 of said at least one fan 3 of the extractor hood 1 is reduced by means of a succession of at least ramps of acceleration A and deceleration D of said motor 4 so as to use the inertia of the turbine 5 of said at least one fan 3 and to obtain suction fumes cooking at a reduced air flow, regular and limiting noise.
  • the control of the motor 4 of said at least one fan 3 along acceleration ramps A and deceleration D of said engine 4 also makes it possible to guarantee operation without damage to said engine 4 under all operating conditions, in particular when the engine 4 is cold. or the mains voltage U A is low.
  • the suction hood 1 makes it possible to create a flow of air generated by said at least one fan 3 at an air flow rate value in a continuous manner and without starting the rotary drive of the turbine 5 of said at least one fan 3 at a determined frequency.
  • the power delivered Pu to the motor 4 of said at least one fan 3 is expressed as a percentage as a function of time, for example in seconds.
  • the curve in solid line illustrates the power delivered Pu to the motor 4 of said at least one fan 3 subjected during its control to at least ramps of acceleration A and deceleration D so as to modulate the speed of rotation of said motor 4.
  • the continuous line curve of the Figures 2A and 2B illustrates the acceleration ramps A and deceleration ramps D can be implemented periodically.
  • the motor 4 of said at least one fan 3 may be subjected to one or more acceleration ramps A and deceleration D which may be successive or not, and of identical or different values.
  • the top of the curve in solid line illustrating the power delivered Pu to the motor 4 of the at least one fan 3 subjected when it is controlled to at least ramps of acceleration A and deceleration D, corresponds to the power level delivered Pu assuring a drive of the turbine 5 of said at least one fan 3 at a sufficient speed of rotation so as to obtain an air flow in accordance with the control of the motor 4 of said at least one fan 3.
  • This delivered power level Pu ensuring a drive of the turbine 5 of said at least one fan 3 at a sufficient speed of rotation is dependent on the characteristics of the motor 4 of said at least one fan 3.
  • this power value delivered to the engine 4 is of the order of 20W in average value for a motor 4 of fan 3 delivering a maximum air flow of 800m 3 / h, where the delay at initiation of the triac 13 is greater than or equal to 6.5 ms for an air flow of the fan 3 of the order of 100 m 3 / h generated by a control of said motor 4 in a succession of at least two ramps acceleration A and deceleration D of said motor 4.
  • the power delivered to the motor 4 is of the order of 60W in average value, where the triac 13 ignition delay is equal to 6.5ms for an operating air flow of the fan 3 of the order of 225m 3 / h generated by a control of said motor 4 at a fixed rotational speed.
  • the power delivered to the engine 4 is of the order of 130W in average value, where the triac 13 ignition delay is equal to 5.3ms for an operating air flow of the fan 3 of the order of 380m 3 / h generated by a control of said motor 4 at a fixed rotational speed.
  • the power delivered to the engine 4 is of the order of 210W in average value, where the delay in the priming of the triac 13 is equal to 3.8ms for a flow of air in operation of the fan 3 of the order of 550m 3 / h generated by a control of said motor 4 at a fixed rotational speed.
  • the power delivered to the engine 4 is of the order of 280W in average value, where the triac 13 permanently drives for an operating air flow of the fan 3 of the order of 710m 3 / h generated by a control said motor 4 at a fixed rotational speed.
  • the theoretical maximum delay at initiation of the triac 13 is equal to the duration of an alternation of the mains voltage U A , ie 10 ms for a mains voltage U A having a frequency of 50 Hz.
  • Reduction of the conduction time of triac 13, by the delay in priming the triac 13, makes it possible to reduce the time of application of the mains voltage U D to the motor 4 of said at least one fan 3 so as to reduce the power delivered Pu to said motor 4.
  • the acceleration ramps A of the motor 4 of said at least one fan 3 make it possible to limit jolts in said motor 4 when it is put into operation.
  • the deceleration ramps D of the engine 4 of said at least one fan 3 make it possible to avoid abrupt freewheeling of said engine 4, and in particular to avoid the restart of the engine 4 by a strong acceleration during an increase in the Power delivered Pu to the engine 4.
  • the dashed and mixed lines of Figures 2A and 2B illustrate the power Pu delivered to the motor 4 of said at least one fan 3 when driving said motor 4 at a fixed rotational speed for four different power values.
  • the power curve broad dashed line corresponds to the power Pu delivered minimum acceptable by the motor 4 of the at least one fan 3 when driving at a fixed rotational speed.
  • the mixed line power curve corresponds to the maximum power output Pu acceptable by the motor 4 of said at least one fan 3 when driving at a fixed rotational speed.
  • acceleration ramps A and the deceleration ramps D of the engine 4 of said at least one fan 3 are produced along line segments.
  • acceleration ramps A and the deceleration ramps D of the engine 4 of said at least one fan 3 are produced according to smooth curves, in particular of the polynomial type.
  • the behavior of the turbine 5 of said at least one fan 3 is better respected so as to reduce the vibrations of the suction hood 1 and the noise generated by said at least one fan 3.
  • the suction hood 1 comprising at least one fan 3 is adapted to operate the motor 4 of said at least one fan 3 so as to obtain a reduced air flow by modulating the control of said motor 4 by means of a succession of at least ramps of acceleration A and deceleration D of said motor 4, and to obtain an air flow in operation greater than the reduced air flow by maintaining said motor 4 at a fixed rotational speed.
  • control means 7, 12 in operation of said at least one fan 3 control said motor 4 at a maximum power for a predetermined duration.
  • the control triac 13 of said motor 4 is permanently driven so as to provide a maximum power to said motor 4.
  • the predetermined duration of the motor 4 of said at least one fan 3 to a maximum power, when starting said motor 4, may for example be of the order of 2 seconds.
  • the value of the predetermined duration of motor control of said at least one fan at maximum power, when starting said motor is in no way limiting and may be different.
  • control means 7, 12 regulate a flow of air sucked by said at least one fan 3 to a value of air flow by means of a control of the engine 4 in a succession of at least of the acceleration ramps A and deceleration D of said engine 4.
  • control means 7, 12 regulate the flow of air sucked by said at least one fan 3 to the air flow value outside the cooking periods implemented by a hob 2.
  • the air contained in a room such as a kitchen is sucked so as to extract cooking fumes or odors outside the cooking periods implemented by a hob 2, as well as to renew the air in such a room, especially for evacuating and / or treating smells of cigarette smoke.
  • the suction hood 1 makes it possible to replace or supplement a conventional controlled mechanical ventilation device installed in the dwellings, and especially in kitchens.
  • Such a suction hood 1 allows by means of a control of the motor 4 of said at least one fan 3 to drive the turbine 5 thereof at a low rotational speed so as to minimize the consumption of electrical energy and to limit the level of noise in this mode of operation outside the cooking periods implemented by a hob 2, while ensuring operation without damage to the motor 4 of the at least one fan 3 and the efficiency of suction of cooking fumes.
  • the reduced air flow rate value of said at least one fan 3 outside the cooking periods implemented by a hob 2 is less than an operating air flow value of said at least one fan 3 to during the cooking periods implemented by the hob 2.
  • control means 7, 12 of the motor 4 control a freewheeling rotation phase P of said motor 4 following a deceleration ramp D of the control of said motor 4, as illustrated in FIGS. Figures 2A and 2B .
  • phase of freewheeling rotation P of the motor 4 of said at least one fan 3 between a deceleration ramp D and an acceleration ramp A may be of reduced duration, or even eliminated, or else lengthened as long as the inertia the turbine 5 of said at least one fan 3 is sufficient to ensure reduced air flow and avoid suction variations causing noise.
  • control means 7, 12 of the motor 4 supply electrical energy to said motor 4 in a discontinuous manner.
  • the modulation of the motor control 4 of said at least one fan 3 of the suction hood 1 exploits the inertia of the turbine 5 of said at least one fan 3 so as to allow a discontinuous supply of said motor 4 without stopping rotation training.
  • the acceleration ramps A and deceleration D of the motor control 4 of said at least one fan 3 are associated with the discontinuous electric power supply of said motor 4 so as to limit the jolts during the rotational drive. said motor 4, and to limit sudden momentum breaks given to the turbine 5 of said at least one fan 3, which are noise and vibration generators.
  • the air flow sucked by said at least one fan 3 is regular while ensuring a minimum power consumption and a reduction of noise.
  • the moment of priming of the triac 13 of said motor 4 at each alternation of the mains voltage U A , c ' ie every 10ms for a mains voltage U A having a frequency of 50Hz does not vary. Therefore, the voltage signal U D at the terminals of the motor 4 would be identical for each period of the mains voltage U A and would be repeated for each alternation is positive or negative, that is to say every 20ms.
  • the curve of the figure 6 illustrating the voltage U D at the terminals of the motor 4 of said at least one fan 3 can be approximated to that of the curve of the Figures 2A and 2B continuous line illustrating the power Pu delivered to said engine 4 during the modulation of the control of this engine 4.
  • modulation phases of the motor control of the at least one fan illustrated in FIGS. Figures 2 to 6 are in no way limiting and may be different.
  • control of the motor 4 of said at least one fan 3 comprises a triac initiation delay 13 identical during a positive half cycle and a negative half cycle of at least one mains period of the mains voltage U A.
  • the modulation phases of the motor control 4 of said at least one fan 3 are symmetrical for at least a period mains of the mains voltage U A.
  • the control of the motor 4 following at least ramps of acceleration A and deceleration D of said motor 4 comprises a delay in priming the triac 13 identical during a positive half cycle and a negative half cycle of at least one mains period of the voltage U A sector, that is for a mains period of 20 ms when the mains voltage U A has a frequency of 50 Hz, then the triac 13 start delay can be modified for a positive half cycle and a negative half cycle. of a following sector period of the mains voltage U A.
  • this control of the motor 4 makes it possible to avoid any dissymmetry of the current absorbed by the motor 4 causing disturbances on the mains voltage U A.
  • Such disturbances on the mains voltage U A would occur in the case where a triac 13 initiation delay would be different during a positive half cycle and a negative half cycle of at least one mains voltage period U A.
  • control of the motor 4 by the control means 7, 12 is triggered manually by a selection means 9 of a control panel 8.
  • the selection means 9 of the control of the motor 4, making it possible to implement the modulation of the control of the latter by means of a succession of at least acceleration ramps A and deceleration D, can be for example a button, a touch pad, or an optical key.
  • selection means is in no way limiting and may be different.
  • control of the motor 4 by the control means 7, 12 is triggered automatically by a sensor 14 in communication with said control means 7, 12.
  • the sensor 14 of the motor control 4 for implementing modulation of the control thereof by means of a succession of at least acceleration ramps A and deceleration D, can be for example a sensor of temperature of the suction hood 1 detecting a predetermined temperature threshold value, and / or a humidity sensor of the suction hood 1 detecting a predetermined threshold moisture value, and / or an infrared sensor of the hood of suction 1 communicating with a transmitter disposed at the level of the hob 2.
  • the type of sensor is not limiting and may be different.
  • control of the motor 4 by the control means 7, 12 is triggered remotely by a communication device (not shown), in particular using a communication network, or a communication device. Automation.
  • this control method is implemented in a fume hood as described with reference to Figures 1 to 6 .
  • This method comprises at least one step of regulating a flow of air sucked by said at least one fan 3 to a value of air flow by means of a control of the motor 4 in a succession of at least two ramps. acceleration A and deceleration D of said engine 4.
  • This air flow rate, said reduced, of said at least one fan 3 may be less than an operating air flow value of said at least one fan 3 generated by a fixed minimum rotational speed of the engine 4 of said at least a fan 3.
  • the flow of air sucked by said at least one fan 3 is regulated to an air flow value by means of a succession of at least acceleration ramps A and deceleration D of the engine control 4 of said at least a fan 3.
  • This regulation of the air flow sucked by said at least one fan 3 makes it possible to reduce the rotational speed of the motor 4 of said at least one fan 3 of the extractor hood 1 by means of a succession of at least two ramps.
  • a acceleration and deceleration D of said engine 4 so as to use the inertia of the turbine 5 of said at least one fan 3 and to obtain a suction of cooking fumes at a reduced air flow, regular and limiting noise.
  • the step of regulating the flow of air sucked by said at least one fan 3 to the airflow value is implemented outside the cooking periods implemented by a hob 2.
  • the regulation of the air flow sucked by said at least one fan 3 to the air flow value outside the cooking periods implemented by the hob 2 makes it possible to limit the noise nuisance and to suck in continuously the air contained in a room, such as a kitchen, so as to evacuate this air and / or to treat it.
  • the airflow value of said at least one fan 3 outside the cooking periods implemented by a hob 2 is less than an operating airflow value of said at least one fan 3 during the periods cooking used by said hob 2.
  • the air flow generated by the at least one fan 3 outside the cooking periods implemented by the hob 2 is adapted to circulate the air in the room where the suction hood is arranged. 1, in particular in a kitchen, by limiting noise pollution since the air flow is adapted to evacuate and / or treat the odors of this room and the air flow is reduced compared to the conventional operation of the hood 1 using a fixed rotational speed of the motor 4 of said at least one fan 3 during the cooking periods set implemented by the hob 2.
  • the step of regulating an intake airflow is triggered following a step of manually selecting the operating mode of said at least one fan 3 of the extractor hood 1 at a flow rate value. air.
  • the manual selection of the operating mode of said at least one fan 3 of the suction hood 1 to a value of air flow, implementing the modulation of the motor control of said at least one fan 3 by means of a succession of at least ramps of acceleration A and deceleration D, can be achieved for example by a button, a touch pad, or an optical key.
  • selection means is in no way limiting and may be different.
  • the step of regulating an intake airflow is triggered following an automatic operation step of the extractor hood 1 when the hob 2 is determined at a standstill. .
  • the automatic activation of the operating mode of said at least one fan 3 of the suction hood 1 to an air flow value can be carried out for example by a temperature sensor of the suction hood 1 detecting a predetermined temperature threshold value, and / or a humidity sensor of the suction hood 1 detecting a predetermined humidity threshold value, and / or an infrared sensor of the extractor hood 1 communicating with a transmitter disposed at the level of the hob 2.
  • the type of sensor is not limiting and may be different.
  • control method of a fume hood 1 comprises a step of stopping the step of regulating a flow of air sucked following a manual shutdown step of said shutdown. minus a fan 3 of said extractor hood 1 to an air flow rate value or following operation of said at least one fan 3 of said extractor hood 1 to an operating air flow rate value of said at least one fan 3 generated by a fixed rotational speed of the motor 4 of said at least one fan 3.
  • the manual selection of the shutdown of said at least one fan 3 of the hood 1, or the operating mode of said at least one fan 3 of the hood 1 at an operating air flow rate of said at least one fan 3 generated by a fixed rotation speed of the motor 4 of said at least one fan 3, can be achieved for example by a button, a touch pad, or an optical key.
  • selection means is in no way limiting and may be different.
  • control method of a suction hood 1 comprises a step of automatically stopping the step of regulating the flow of air sucked following a step of determining the operation of the hob 2.
  • Automatic shutdown of the operating mode of said at least one fan 3 of the extractor hood 1 to a value of air flow can be performed by a temperature sensor of the suction hood 1 detecting a predetermined temperature threshold value, and / or a humidity sensor of the suction hood 1 detecting a predetermined threshold humidity value, and / or an infrared sensor of the extractor hood 1 communicating with a transmitter disposed at the level of the hob 2.
  • the type of sensor is not limiting and may be different.
  • the step of regulating the flow of air sucked by said at least one fan 3 to the airflow value is implemented when the suction hood 1 is in a standby state.
  • said at least one fan 3 of the suction hood 1 is operated at an operating air flow value of said at least one fan 3 generated by a fixed rotation speed of the motor 4 of said at least one fan 3.
  • the step of regulating the flow of air sucked by said at least one fan 3 to the air flow value is carried out for a predetermined duration.
  • the suction hood 1 is put into operation by regulating the flow of air sucked by said at least one fan 3 to the air flow value for the predetermined duration.
  • the predetermined duration of operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the air flow value may be for example of the order of 1 hour.
  • the value of the predetermined duration of operation of the hood suction by regulating the flow of air sucked by said at least one fan to the air flow value is not limiting.
  • the predetermined duration of operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the airflow value can be selected manually or stored by the control means 7, 12.
  • the manual selection of the predetermined duration of operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the air flow value can be carried out by means of selection 9 of the panel 8, such as for example a dedicated key.
  • This selection means 9 can also make it possible to trigger and stop the operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the airflow value.
  • the predetermined duration of operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the airflow value can be displayed by a display means 10 of the control panel 8 , such as for example by a display with seven segments.
  • the predetermined duration of operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the airflow value can be adjusted by incrementing or decrementing the value of said predetermined duration manually by at least one selection means 9 of the control panel 8.
  • Said at least one selection means 9 may for example comprise a key for incrementing the predetermined duration and a key for decrementing the predetermined duration.
  • the adjustment of the predetermined time can be activated by a long press on the selection means 9 for triggering and stopping the operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the airflow value.
  • the adjustment of the predetermined duration of operation of the extractor hood 1 by regulating the flow of air sucked by said at least one fan 3 to the air flow rate value can range for example from 1 hour to 9 hours. hours.
  • the value of the adjustment of the predetermined duration of operation of the suction hood by regulating the flow of air sucked by said at least one fan to the air flow value is not limiting.
  • the value of the predetermined duration being adjusted can be displayed by a display means 10 of the control panel 8, for example by flashing of said value.
  • the validation of the predetermined duration following the adjustment of the latter may be automatic after a predefined duration without detection of the activation of at least one selection means 9 allowing this adjustment, which may be for example of the order 10 seconds, or manual by the activation of a selection means 9 for starting and stopping the operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the air flow value.
  • the adjustment of the predetermined duration can also be canceled by the activation of a selection means 9 of the control panel 8, such as for example a key, in particular during the predefined duration of validation of the predetermined duration.
  • the suction hood 1 stops automatically following the lapse of the predetermined duration of operation of said suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the flow rate value. air.
  • the predetermined duration of operation of the suction hood 1 by regulating the flow of air sucked by said at least one fan 3 to the air flow value can be changed at any time by one of the selection means 9 of the control panel 8. This change in the predetermined time can occur during the startup of the suction hood 1 regulating the flow of air sucked by said at least one fan 3 to the air flow value .
  • the predetermined duration of operation of the hood 1 can be displayed on a display means 10 of the control panel 8 by pressing on one of the selection means 9 of the control panel 8 when the operation of the suction hood 1 regulating the flow of air sucked by said at least one fan 3 to the air flow value, then said predetermined time can be modified by one or more supports on one of the selection means 9 of the control panel 8 allowing the adjustment of this predetermined time, and this predetermined time can be validated either automatically or manually so that the control device 6 of the suction hood 1 continues to control said at least a fan 3 to the airflow value.
  • the step of regulating the flow of air sucked by said at least one fan 3 to the air flow value is carried out continuously outside the cooking periods implemented by a cooktop 2.
  • said at least one fan 3 of the suction hood 1 is operated at an operating airflow value of said at least one fan 3 generated by a fixed rotation speed of the motor 4 of said at least one fan 3 during cooking periods implemented by a hob 2, either following a manual selection step or following a step of automatic operation at said operating air flow rate of said at least one fan 3 .
  • the modulation of the motor control of the said less a fan of the suction hood exploits the inertia of the turbine of the at least one fan so as to allow a discontinuous power supply of said motor without stopping the rotation drive.

Landscapes

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

Claims (19)

  1. Dunstabzugshaube (1) für Küchen, mindestens einen Absaugventilator (3) für Küchendunst und Steuermittel (7, 12) für den Betrieb besagten mindestens einen Ventilators (3) umfassend, wobei der besagte, mindestens eine Ventilator (3) einen Motor (4) und eine Turbine (5) umfasst, die dadurch gekennzeichnet sind, dass:
    - besagte Steuermittel (7, 12) den Strom der von besagtem mindestens einen Ventilator (3) abgesaugten Luft mittels einer Steuerung besagten Motors (4) auf einen Sollwert regulieren, dabei eine Abfolge von zumindest Beschleunigungsrampen (A) und Bremsrampen (D) besagten Motors (4) befolgend.
  2. Dunstabzugshaube (1) für Küchen nach Anspruch 1, dadurch gekennzeichnet, dass besagte Steuermittel (7, 12) den besagten, von mindestens einem Ventilator (3) abgesaugten Luftstrom außerhalb der von einem Kochfeld (2) ausgeführten Kochintervalle auf besagten Sollwert regulieren.
  3. Dunstabzugshaube (1) für Küchen nach Anspruch 2, dadurch gekennzeichnet, dass besagter Sollwert abgesaugter Luft besagten mindestens einen Ventilators (3) außerhalb der von einem Kochfeld (2) ausgeführten Kochintervalle niedriger ist als ein Sollwert abgesaugter Luft im Funktionszustand besagten mindestens einen Ventilators (3) im Verlauf der von besagtem Kochfeld (2) ausgeführten Kochintervalle.
  4. Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass im Zuge der Regulierung des von dem besagten, mindestens einen Ventilator (3) abgesaugten Luftstroms unter Beachtung besagten Sollwerts abgesaugter Luft die besagten Steuermittel (7, 12) besagten Motors (4) im Anschluss an eine Bremsrampe (D) der Steuerung besagten Motors (4) eine Anlaufphase im Leerlauf (P) besagten Motors (4) vorgeben.
  5. Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass besagte Steuermittel (7, 12) besagten Motors (4) besagten Motor (4) diskontinuierlich mit Strom versorgen.
  6. Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass besagte Steuermittel (7, 12) besagten Motors (4) anhand einer von einer Mikrosteuerung (12) gesteuerten Triac (13) eine Abstufung der Netzspannung (UA) verwenden.
  7. Dunstabzugshaube (1) für Küchen nach Anspruch 6, dadurch gekennzeichnet, dass besagte Triac (13) in Funktion eines Signals zur Netzspannungssynchronisierung (UB) ausgelöst wird, welches von besagter Netzspannung (UA) ausgeht.
  8. Dunstabzugshaube (1) für Küchen nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Steuerung besagten Motors (4) besagten mindestens einen Ventilators (3) eine Verzögerung des Auslösens besagter Triac (13) umfasst, wobei besagte Verzögerung bei einem positiven Lastwechsel und einem negativen Lastwechsel mindestens einer Netzphase der Netzspannung (UA).
  9. Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass besagte Steuerung besagten Motors (4) von besagten Steuermitteln (7, 12) manuell durch ein Auswahlmittel (9) eines Steuerpanels (8) in Gang gesetzt wird.
  10. Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass besagte Steuerung besagten Motors (4) von besagten Steuermitteln (7, 12) automatisch durch einen Sensor (14) in Gang gesetzt wird, der mit besagten Steuermitteln (7, 12) verbunden ist.
  11. Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass besagte Steuermitteln (7, 12) besagten mindestens einen Ventilators (3) nach dem Starten besagten Motors (4) besagten mindestens einen Ventilators (3) den besagten Motor über einen vordefinierten Zeitraum hinweg mit maximaler Leistung steuern.
  12. Verfahren zur Steuerung einer Dunstabzugshaube (1) für Küchen, mindestens einen Absaugventilator für Küchendunst (3) und Steuermittel (7, 12) für den Betrieb besagten mindestens einen Ventilators (3) umfassend, wobei der besagte, mindestens eine Ventilator (3) einen Motor (4) und eine Turbine (5) umfasst, dadurch gekennzeichnet, dass besagtes Verfahren mindestens einen Schritt umfässt:
    - das Regulieren des Stroms der von besagtem mindestens einen Ventilator (3) abgesaugten Luft mittels einer Steuerung besagten Motors (4) auf einen Sollwert, dabei eine Abfolge von zumindest Beschleunigungsrampen (A) und Bremsrampen (D) besagten Motors (4) befolgend.
  13. Verfahren zur Steuerung einer Dunstabzugshaube (1) für Küchen nach Anspruch 12, dadurch gekennzeichnet, dass besagter Schritt des Regulierens eines von besagtem, mindestens einen Ventilator (3) abgesaugten Luftstroms auf besagten Sollwert außerhalb der von einem Kochfeld (2) ausgeführten Kochintervalle erfolgt.
  14. Verfahren zur Steuerung einer Dunstabzugshaube (1) für Küchen nach Anspruch 13, dadurch gekennzeichnet, dass besagter Sollwert abgesaugter Luft besagten mindestens einen Ventilators (3) außerhalb der von besagtem Kochfeld (2) ausgeführten Kochintervalle niedriger ist als ein Sollwert abgesaugter Luft im Funktionszustand besagten mindestens einen Ventilators (3) im Verlauf der von besagtem Kochfeld (2) ausgeführten Kochintervalle.
  15. Verfahren zur Steuerung einer Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass besagter Schritt des Regulierens eines abgesaugten Luftstroms mit einem reduzierten Sollwert im Anschluss an einen Schritt der manuellen Auswahl des Funktionsmodus besagten mindestens einen Ventilators (3) besagter Dunstabzugshaube (1) des abgesaugten Luftstroms erfolgt.
  16. Verfahren zur Steuerung einer Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass besagter Schritt des Regulierens eines abgesaugten Luftstroms im Anschluss an einen Schritt des automatischen Startens besagter Dunstabzugshaube (1) erfolgt, nachdem besagtes Kochfeld (2) abgeschaltet wurde.
  17. Verfahren zur Steuerung einer Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 12 bis 16, dadurch gekennzeichnet, dass es einen Schritt des Beendens besagten Schritts des Regulierens eines abgesaugten Luftstroms im Anschluss an einen Schritt der manuellen Auswahl des Abschaltens besagten mindestens einen Ventilators (3) besagter Dunstabzugshaube (1) mit besagtem Grenzwert oder im Anschluss an das Inbetriebsetzen besagten mindestens einen Ventilators (3) besagter Dunstabzugshaube (1) mit einem Sollwert für den Luftstrom beim Betrieb des besagten, mindestens einen Ventilators (3) umfasst, ausgelöst durch eine feste Drehgeschwindigkeit besagten Motors (4) des besagten, mindestens einen Ventilators (3).
  18. Verfahren zur Steuerung einer Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 12 bis 17, dadurch gekennzeichnet, dass es einen Schritt des automatischen Beendens besagten Schritts des Regulierens eines abgesaugten Luftstroms im Anschluss an einen Schritt des Erkennens der Inbetriebnahme besagten Kochfelds (2) umfasst.
  19. Verfahren zur Steuerung einer Dunstabzugshaube (1) für Küchen nach einem jeglichen der Ansprüche 12 bis 18, dadurch gekennzeichnet, dass besagter Schritt des Regulierens eines von besagtem, mindestens einen Ventilator (3) abgesaugten Luftstroms auf besagten Sollwert für einen vordefinierten Zeitraum erfolgt.
EP11000884.4A 2010-02-11 2011-02-04 Dunstabzugshaube und Steuerverfahren dafür Active EP2360434B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1000609A FR2956189B1 (fr) 2010-02-11 2010-02-11 Hotte d'aspiration et procede de commande associe

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EP2360434B1 true EP2360434B1 (de) 2016-08-31

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Publication number Priority date Publication date Assignee Title
JP5921890B2 (ja) * 2012-01-17 2016-05-24 富士工業株式会社 レンジフード
CN107763690A (zh) * 2017-09-28 2018-03-06 珠海格力电器股份有限公司 吸油烟机及其控制方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3625135A (en) * 1970-04-22 1971-12-07 Honeywell Inc Automatically controlled cooking area ventilating system
GB2147990B (en) * 1983-10-14 1988-04-27 Thorn Emi Domestic Appliances Fan unit
WO1987007787A1 (en) * 1986-06-11 1987-12-17 Uni-Power International Pty. Ltd. Ac to ac converter
US5955794A (en) * 1997-02-14 1999-09-21 Gerhard Kurz Method and arrangement for controlling the output of a load connected to an ac line voltage
US6070660A (en) * 1997-02-18 2000-06-06 Hoffman Controls Corp. Variable speed fan motor control for forced air heating/cooling system
US6150776A (en) * 1999-05-04 2000-11-21 Metropolitan Industries, Inc. Variable frequency motor starting system and method
DE102004055944A1 (de) * 2004-11-19 2006-05-24 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung und Verfahren zur Belüftung einer Kochfläche
US7800339B2 (en) * 2006-11-20 2010-09-21 Honeywell International Inc. Drive control assembly for controlling a motor
US20080274683A1 (en) * 2007-05-04 2008-11-06 Current Energy Controls, Lp Autonomous Ventilation System

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Publication number Publication date
FR2956189A1 (fr) 2011-08-12
ES2601815T3 (es) 2017-02-16
FR2956189B1 (fr) 2012-03-02
EP2360434A1 (de) 2011-08-24

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