EP3303955B1 - Appareil électroménager équipé d'un capteur de pression différentielle - Google Patents

Appareil électroménager équipé d'un capteur de pression différentielle Download PDF

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Publication number
EP3303955B1
EP3303955B1 EP16723736.1A EP16723736A EP3303955B1 EP 3303955 B1 EP3303955 B1 EP 3303955B1 EP 16723736 A EP16723736 A EP 16723736A EP 3303955 B1 EP3303955 B1 EP 3303955B1
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EP
European Patent Office
Prior art keywords
pressure
door
controller
household appliance
pressure profile
Prior art date
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Active
Application number
EP16723736.1A
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German (de)
English (en)
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EP3303955A1 (fr
Inventor
Stephan Kempfle
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.)
BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication of EP3303955A1 publication Critical patent/EP3303955A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/047—Pressure equalising devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/218—Holders
    • E05Y2201/22—Locks
    • E05Y2201/221—Touch latches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • E05Y2201/426—Function thereof for opening for the initial opening movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/30—Electronic control of motors
    • E05Y2400/3013—Electronic control of motors during manual wing operation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/44—Sensors not directly associated with the wing movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening

Definitions

  • the present invention relates to a household appliance with a door opening aid.
  • the publication DE 10 2006 061 083 A1 describes a refrigerator with a door opening help.
  • Electronic door opening aids are often used in modern home appliances, such as domestic refrigerators, to actively assist a user-initiated door opening operation. For this purpose, however, it is necessary to detect a door opening request of the user.
  • a differential pressure sensor can be used, which detects a push on the door in a push opening operation and a pull on the door in a pull opening operation.
  • An exemplary differential pressure sensor is in the document EP 1790252 B1 described.
  • the present invention is based on the finding that the above object can be achieved by monitoring a plurality of pressure values output by a differential pressure sensor.
  • the pressure curve instead of a single pressure value can be used to detect the door opening request.
  • the present invention is based on the further finding that a door closure in the outer region of the household appliance can cause pressure fluctuations, which can lead to a false triggering of a door opening aid when using a differential pressure sensor.
  • a door closure in the outer region of the household appliance can cause pressure fluctuations, which can lead to a false triggering of a door opening aid when using a differential pressure sensor.
  • Such fluctuations can be throttled or damped. This reduces the likelihood of false triggering of a door opening aid due to outside pressure fluctuations.
  • the invention relates to a household appliance having a body, a door for closing an interior, a differential pressure sensor with a sensor membrane for detecting a pressure difference between an internal air pressure in the interior and an external air pressure in an outdoor space, a door opening aid for assisting the door opening operation, and a Controlling the door opening aid as a function of the detected pressure difference, wherein the controller is designed to detect a pressure profile of the pressure difference and to control the door opening aid in dependence on the detected pressure profile.
  • the pressure profile is determined by the pressure output values of the differential pressure sensor, for example within a predetermined time interval of 100 ms, 500 ms or 1 s.
  • the decision to activate the door opening aid will therefore not be based on a single pressure value, but rather on the basis of a pressure curve, i. based on a pressure waveform.
  • the control comprises the activation of the door opening aid, the deactivation of the door opening aid, the non-activation of the door opening aid and the enhancement of the effect of the door opening aid.
  • the controller is configured to activate the door opening aid if the detected pressure profile extends within a predetermined pressure course corridor.
  • the pressure-course corridor can be determined, for example, by a lower pressure curve boundary and by an upper pressure curve boundary, which are predetermined. Runs the pressure curve within these limits and thus within the thus predetermined pressure course corridor, so it can be assumed that there is a door opening request and the door opening help can be activated.
  • the pressure gradient corridor may be different for different door opening variants.
  • an opening operation push
  • an increase in pressure is to be assumed when the door is pressed by a user. After releasing the door by the user, however, the pressure drops.
  • the pressure curve may, for example, be linearly increasing up to a pressure peak value, which represents a maximum pressure value. Upon reaching the maximum pressure value, i. immediately after releasing the door, for example, the pressure drops linearly. If such a pressure profile is detected, the door opening aid is activated.
  • the pressure detected by means of the differential pressure sensor reduces linearly during the pulling phase, which results in a negative pressure gradient. If such a negative pressure curve is detected within the pressure curve corridor, it can also be assumed in the case of the train opening variant that a door opening request is present, so that the door opening aid can be activated.
  • the controller is configured to compare a slope of the sensed pressure profile to at least one gradient threshold to determine if the sensed pressure profile is within a predetermined pressure course corridor, and to activate the door opening assist only if the sensed pressure profile is within the predetermined pressure waveform corridor lies.
  • the gradient threshold value can be determined, for example, by a lower pressure profile boundary and / or by an upper pressure profile boundary.
  • the slope of the gradient threshold value in the first pressure progression phase is positive and then drops off with a negative gradient.
  • the slope threshold has a negative slope from the beginning.
  • the controller is designed to detect a change in the gradient of the detected pressure profile and to activate the door opening aid in the presence of the gradient reversal.
  • the reversal is expected, as stated above, in a push variant and occurs immediately after releasing the door.
  • the slope reversal is determined by a maximum pressure value which can also be detected. As a result, the door opening request is detected at a push opening in a particularly simple and secure manner.
  • the controller is configured to detect a positive slope of the detected pressure profile up to the slope reversal and a negative slope of the detected pressure curve after the slope reversal and to activate the door opening aid only if the positive slope of the pressure curve and the negative slope of the pressure curve within lie of a predetermined pressure course corridor.
  • the controller is configured to detect a positive slope of the detected pressure profile up to the slope reversal and a negative slope of the detected pressure curve after the slope reversal and to activate the door opening aid only if the positive slope of the pressure curve and the negative slope of the pressure curve within lie of a predetermined pressure course corridor.
  • the controller is configured to activate the door opening aid with an increase in a slope of the detected pressure curve or to increase its effect.
  • the pull variant is considered in a particularly advantageous manner, in which the pressure difference and thus the slope of the detected pressure curve are negative.
  • the door opening aid in the pull variant can be activated if an absolute value of the detected, negative pressure difference is exceeded.
  • the controller is configured to activate the door opening aid if the pressure profile with negative pressure difference values falls below the pressure course corridor.
  • the door opening request is advantageously detected in the pull opening variant, in which the pressure difference values due to the pressure exerted on the door from the beginning are negative, so that the pressure curve has a negative slope from the beginning.
  • the sensor membrane has a first membrane side facing the interior and a second membrane side facing away from the interior, and the second membrane side is surrounded by a pressure throttle chamber, and the pressure throttle chamber is designed to at least partially throttle the outside air pressure.
  • the differential pressure sensor is arranged in a body.
  • the differential pressure sensor can also be arranged in any area of the body.
  • the pressure throttle chamber encloses the second membrane side at least partially or completely.
  • the possibility of a slow pressure equalization between the interior of the pressure throttle chamber and the environment of the pressure throttle chamber is effected.
  • the pressure acting on the second membrane side air pressure can be adapted to atmospheric air pressure fluctuations.
  • a reference system with an always constant pressure is provided by the pressure restrictor chamber.
  • the pressure throttle chamber is designed to provide a reference pressure or to throttle the external air pressure.
  • the pressure throttle chamber on a pressure throttle element in particular a throttle opening or a throttle stage, which is provided for a monotone pressure equalization between an interior of the pressure throttle chamber and the outer space. Due to the monotonous pressure equalization on the one hand achieved that an adjustment of the air pressure in the interior of the pressure throttle chamber can be adapted to atmospheric fluctuations of the air pressure outside the pressure throttle chamber. At the same time non-monotonous, ie abrupt slopes of the pressure are not passed on to the second membrane side.
  • the controller has a control board with an electrical circuit, and the control board forms a wall of the pressure throttle chamber or closes off the pressure throttle chamber.
  • the board can for example form a lid of the pressure throttle chamber, which is always to be assumed by the design of the board that, for example due to the via contacts in the board openings are present, which can be exploited as throttle openings, whereby at least partial pressure throttling can be achieved , At the same time less space is needed because the board can not be accommodated in a separate location.
  • the connection lines to the board can be made shorter, resulting in a saving of material.
  • the side walls of the throttle chamber, on which the serving as a lid board can rest can be formed for example by air seals or other walls. Another advantage of this embodiment is that smaller openings are tolerable, because they act as throttle openings. As a result, the production cost is reduced.
  • the door is manifested by a mechanical pressure on the door
  • the controller is adapted to activate the door opening aid upon an increase in the detected pressure difference, or the door is revealed by a mechanical pull on the door
  • the control is designed to activate the door control with a reduction in the detected pressure difference.
  • the invention relates to a method of controlling an activatable door opening aid for assisting opening of a door in a household appliance comprising a body, a door for closing an interior space, a differential pressure sensor with a sensor membrane for detecting a pressure difference between an internal air pressure in the interior space and an external air pressure outside the outer space, wherein a pressure curve of the pressure difference within a Time interval is detected and wherein the door opening aid is activated in dependence on the detected pressure profile.
  • the controller activates the door opening aid only if the detected pressure profile extends within a predetermined pressure course corridor.
  • Fig. 1 schematically shows a household appliance 100, which may be, for example, a household refrigerator.
  • the household appliance 100 has a body 101 and a door 103 which closes the interior 105 of the body 101.
  • an electric door opening aid 107 is provided to assist a door opening operation.
  • the door opening aid 107 may have an actuator which assists the door opening initiated by a user.
  • the differential pressure sensor 106 has a sensor membrane 109, which has a first membrane side 109-1 and a second membrane side 109-2.
  • the first diaphragm side 109-1 faces the inner space 105 and is exposed to the internal air pressure in the inner space 105.
  • the first membrane side 109-1 can be arranged in a pressure chamber 110, which in Fig. 1 shown schematically and the internal pressure in the interior 105 is directly exposed.
  • the second membrane side 109-2 is arranged in a throttle chamber 111, which is provided to at least partially throttle an external air pressure.
  • a throttle chamber 111 which is provided to at least partially throttle an external air pressure.
  • the second membrane side 109-2 is exposed to a throttled external air pressure, so that abrupt pressure fluctuations, which occur, for example, when the door 103 closes, do not directly affect the pressure measurement.
  • the throttle chamber 111 may be fully closed, thereby providing a reference pressure inside the throttle chamber.
  • the throttle chamber 111 does not have to be completely closed, but it may, for example, have one or more pressure compensation openings to allow a slow pressure equalization in, for example, atmospheric fluctuations in the external air pressure. In both cases, throttling reduces a direct environmental impact on the sensor membrane 109, thereby avoiding pressure error detections.
  • the throttled differential pressure sensor 106 can adjust to the ambient pressure. In this way, a high resolution is achieved, which may for example be in a resolution range of 0.001 mbar. By throttling, the operating range of the differential pressure sensor 106 can be limited to a small pressure range, allowing the increased resolution. With the throttled pressure compensation, the differential pressure sensor 106 thus always operates in or around the zero point in the resolution range and does not drift out of the measuring range at higher ambient pressures.
  • the household appliance 100 further comprises a controller 113, which controls the door actuator 107, for example, activated.
  • the controller 111 is arranged on a circuit board, which closes off the pressure throttle chamber 111 as a cover.
  • Fig. 2 shows an exemplary pressure curve 201, which has a first pressure gradient section 201-1 with a positive slope and a second pressure gradient section 201-2 with a negative slope.
  • the pressure curve 201 further has a gradient reversal point 203, which is determined by a detected pressure maximum value.
  • the pressure profile 201 is a differential pressure signal, which results, for example, in the push variant at an opening request, in which a user presses the door to initiate an opening process.
  • the first pressure profile section 201-1 is formed in the phase of pressing until the maximum pressure 203 is reached.
  • the second pressure profile section 201-2 results when the door 103 is released and the associated reduction in the differential pressure.
  • the controller 113 is preferably designed to detect the pressure curve 201 and, depending on the detected pressure curve, to control the door opening aid 107, for example to activate it.
  • the controller 113 may be configured to form a continuous averaging of the differential pressure provided by the differential pressure sensor 106, whereby a signal slope may be monitored.
  • a signal slope may be monitored.
  • the exemplary pressure profile section 201-1 results, while with a negative signal gradient, ie with a drop in the differential pressure, the second pressure profile section 201-2 results.
  • the sensor signal provided by the differential pressure sensor 106 which indicates a plurality of pressure values and thus indicates the pressure profile 201, can be digitized.
  • an analysis can be carried out as to whether the pressure profile, that is to say for example the gradient, runs within predetermined limits 205 and 207.
  • the boundary 205 is a lower pressure gradient boundary
  • the boundary 207 is an upper pressure gradient boundary.
  • the boundaries 205 and 207 define a pressure-course corridor in which the pressure curve 201 is intended to run so that the door-opening aid 107 is activated.
  • the maximum pressure value 203 i. a differential pressure peak
  • the boundaries 205, 207 i. the pressure-course corridor, an envelope. If the pressure curve 201 is within the envelope, then the door opening aid 107 can be activated, as a result of which an actuator is started.
  • the actuator can be started at a staggered time, whereby a movement sequence of a user is taken into account.
  • the pressure-course corridor 205, 207 can, according to one embodiment, take into account further gradients, for example pressure signal overshoots of the door or pressure signal increase changes, in order to further minimize false triggering of the door-opening aid 107.
  • an opening request detection takes place within a range of, for example, 0.2 s or even faster.
  • a superimposed pressure difference as it is, for example, in a negative pressure build-up after a door closing, and which may be accompanied by a slow change in the pressure difference, be taken into account.
  • This consideration can be done, for example, by a shift of the differential pressure differential value or the limits 205, 207, whereby an adaptation of the pressure gradient corridor to given conditions can be achieved.
  • the opening and closing of the door 103 can also be detected.
  • the lower limit 205 and the upper limit 207 each have a differential pressure differential 208, 210, which in each case indicates a gradient reversal point 203.
  • Fig. 3 shows a differential pressure curve 301, which results in the pull scenario in which the door 103 is opened by a train on the door 103.
  • the slope of the differential pressure is negative, which is in Fig. 3 is expressed by the illustrated negative pressure values ⁇ p.
  • the pressure course corridor is here given by the lower pressure curve boundary 303 and the upper pressure curve boundary 305, which each have negative slopes.
  • the door opening aid 107 is activated.
  • a stronger slope of the differential pressure curve 301-1, the activation of the door opening aid 107, so the effect of an additional actuator support, indicate, for example, as long as a door seal is not detached.
  • the pressure-course corridors 205, 207 and 303, 305 can be adjusted by further parameters.
  • FIG. 12 shows an exemplary arrangement of the differential pressure sensor 106 in the body 101.
  • the pressure chamber 110 is connected to the inner space 105 by way of a pressure connection 401 and a pressure line 403, which may have line sections of different diameters.
  • the pressure throttle chamber 111 is executed closed and thereby forms a separate reference system.
  • the pressure throttle chamber 111 includes side walls 405, which can be realized for example by a circumferential seal.
  • the side walls 405 are covered by a closure 407 which hermetically seals the interior of the pressure restricting chamber 111.
  • a constant reference pressure prevails in the interior of the pressure throttle chamber 111, so that any pressure changes only affect the first membrane side 109-1.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Claims (16)

  1. Appareil électroménager (100) avec un corps (101), une porte (103) pour la fermeture d'un espace intérieur (105), un détecteur de pression différentielle (106) avec une membrane de détecteur (109) pour la reconnaissance d'une différence de pression entre la pression atmosphérique intérieure dans l'espace intérieur (105) et une pression atmosphérique extérieure dans un espace extérieur, une aide à l'ouverture de porte (107) pour assister le processus d'ouverture de porte ainsi qu'une commande de cette aide à l'ouverture de porte (107) en fonction de la différence de pression détectée, caractérisé en ce que cette commande est réalisée pour détecter une courbe de pression (201) de la différence de pression et pour commander l'aide à l'ouverture de porte (107) en fonction de la courbe de pression (201) détectée.
  2. Appareil électroménager (100) selon la revendication 1, caractérisé en ce que la commande est réalisée pour activer l'aide à l'ouverture de porte (107) dans le cas où la courbe de pression (201) détectée se produit dans un couloir prédéterminé de la courbe de pression.
  3. Appareil électroménager (100) selon la revendication 1 ou 2, caractérisé en ce que la commande est réalisée pour comparer une pente de la courbe de pression (201) détectée avec au moins une valeur de seuil de pente, dans le but de reconnaître si la courbe de pression (201) détectée se situe à l'intérieur d'un couloir de courbe de pression prédéterminé et pour n'activer l'aide à l'ouverture de porte (107) que quand la courbe de pression (201) détectée se situe dans ce couloir de courbe de pression prédéterminé.
  4. Appareil électroménager (100) selon l'une des revendications précédentes, caractérisé en ce que la commande est réalisée pour détecter une inversion de pente de la courbe de pression (201) détectée et pour activer l'aide à l'ouverture de porte (107) en cas d'inversion de pente.
  5. Appareil électroménager (100) selon l'une des revendications précédentes, caractérisé en ce que la commande est réalisée pour détecter une pente positive de la courbe de pression (201) détectée jusqu'à l'inversion de pente ainsi qu'une pente négative de la courbe de pression (201) détectée après inversion de pente, et pour n'activer l'aide à l'ouverture de porte (107) que quand la pente positive de la courbe de pression (201) et la pente négative de la courbe de pression (201) se situent dans un couloir de courbe de pression prédéterminé.
  6. Appareil électroménager (100) selon l'une des revendications précédentes, caractérisé en ce que la commande (113) est réalisée pour activer l'aide à l'ouverture de porte (107) en cas d'élévation d'une pente de la courbe de pression (201) détectée ou pour renforcer son effet.
  7. Appareil électroménager (100) selon l'une des revendications précédentes, caractérisé en ce que la commande (113) est réalisée pour activer l'aide à l'ouverture de porte (107) si la courbe de pression (201) dépasse négativement, avec des valeurs de différences de pression négatives, le couloir de courbe de pression.
  8. Appareil électroménager (100) selon l'une des revendications précédentes, caractérisé en ce que la membrane de détecteur (109) présente un premier côté de membrane (109-1) tourné vers l'espace intérieur (105) et un deuxième côté de membrane (109-2) opposé à l'espace intérieur (105), et en ce que ce deuxième côté de membrane (109-2) est entouré d'une chambre d'étranglement de la pression (111) et en ce que cette chambre d'étranglement de la pression (111) est réalisée pour étrangler la pression atmosphérique extérieure au moins en partie.
  9. Appareil frigorifique électroménager selon la revendication 8, caractérisé en ce que le détecteur de pression différentielle (106) est agencé dans un corps (101).
  10. Appareil électroménager (100) selon la revendication 8 ou 9, caractérisé en ce que la chambre d'étranglement de la pression (111) englobe le deuxième côté de membrane (109-2) au moins partiellement ou complètement.
  11. Appareil électroménager (100) selon l'une des revendications précédentes 8 à 10, caractérisé en ce que cette chambre d'étranglement de la pression (111) est réalisée pour procurer une pression de référence ou pour étrangler la pression atmosphérique extérieure.
  12. Appareil électroménager (100) selon l'une des revendications précédentes 8 à 11, caractérisé en ce que la chambre d'étranglement (111) comporte un élément d'étranglement de la pression, en particulier un orifice d'étranglement ou une borne d'étranglement, laquelle sert à une compensation monotone de pression entre l'intérieur de la chambre d'étranglement de la pression (111) et l'espace extérieur.
  13. Appareil électroménager (100) selon l'une des revendications précédentes 8 à 12, caractérisé en ce que la commande (113) comporte un disque de commande avec circuit de commutation électrique, et en ce que ce disque de commande forme une paroi de la chambre d'étranglement de la pression (111) ou isole la chambre d'étranglement de la pression (111).
  14. Appareil électroménager (100) selon l'une des revendications précédentes, caractérisé en ce que la porte (103) peut s'ouvrir par pression mécanique sur la porte (103), et en ce que la commande (113) est réalisée pour activer l'aide à l'ouverture de porte (107) en cas d'augmentation de la différence de pression détectée, ou en ce que la porte (103) peut être ouverte par traction mécanique à la porte (103) et en ce que la commande (113) est réalisée pour activer la commande de porte en cas de diminution de la différence de pression détectée.
  15. Procédé de commande d'une aide à l'ouverture de porte (107) activable pour soutenir l'ouverture d'une porte (103) dans un appareil électroménager (100) qui comporte un corps (101), une porte (103) destinée à la fermeture d'un espace intérieur (105), un détecteur de pression différentielle (106) avec une membrane de détecteur (109) pour la détection d'une différence de pression entre une pression atmosphérique intérieure dans l'espace intérieur (105) et une pression atmosphérique extérieure à l'extérieur de l'espace intérieur (105), caractérisé en ce qu'une courbe de pression (201) de la différence de pression est détectée à l'intérieur d'un intervalle de temps et en ce que cette aide à l'ouverture de porte (107) est activée en fonction de la courbe de pression (201) détectée.
  16. Procédé selon la revendication 14, caractérisé en ce que la commande (113) n'active l'aide à l'ouverture de porte (107) que si la courbe de pression (201) détectée évolue à l'intérieur d'un couloir de courbe de pression prédéterminé.
EP16723736.1A 2015-06-02 2016-05-18 Appareil électroménager équipé d'un capteur de pression différentielle Active EP3303955B1 (fr)

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DE102015210113.4A DE102015210113A1 (de) 2015-06-02 2015-06-02 Haushaltsgerät mit Differenzdrucksensor
PCT/EP2016/061077 WO2016192990A1 (fr) 2015-06-02 2016-05-18 Appareil électroménager équipé d'un capteur de pression différentielle

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US20180155975A1 (en) 2018-06-07
US10392855B2 (en) 2019-08-27
WO2016192990A1 (fr) 2016-12-08
EP3303955A1 (fr) 2018-04-11

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