EP2636355B1 - Appareil ménager doté d'une porte - Google Patents

Appareil ménager doté d'une porte Download PDF

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Publication number
EP2636355B1
EP2636355B1 EP12401038.0A EP12401038A EP2636355B1 EP 2636355 B1 EP2636355 B1 EP 2636355B1 EP 12401038 A EP12401038 A EP 12401038A EP 2636355 B1 EP2636355 B1 EP 2636355B1
Authority
EP
European Patent Office
Prior art keywords
door
sensor
household appliance
spring
detected
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.)
Active
Application number
EP12401038.0A
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German (de)
English (en)
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EP2636355A1 (fr
Inventor
Stefan Tiekötter
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Priority to EP12401038.0A priority Critical patent/EP2636355B1/fr
Priority to US13/786,622 priority patent/US20130232877A1/en
Publication of EP2636355A1 publication Critical patent/EP2636355A1/fr
Application granted granted Critical
Publication of EP2636355B1 publication Critical patent/EP2636355B1/fr
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Anticipated expiration legal-status Critical

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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
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0049—Detection or prevention of malfunction, including accident prevention
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4261—Connections of the door to the casing, e.g. door hinges
    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1269—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring
    • E05F1/1276—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
    • 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
    • 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
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/023—Mounting of doors, e.g. hinges, counterbalancing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/26—Loading door status, e.g. door latch opened or closed state
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/32—Vibration or sound detection
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/34—Other automatic detections
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/22—Loading doors, e.g. door latches, inflatable door seals
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/32—Stopping or disabling machine operation, including disconnecting the machine from a network, e.g. from an electrical power supply
    • 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
    • E05Y2201/21—Brakes
    • 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
    • E05Y2201/246—Actuation thereof by auxiliary motors, magnets, springs or weights
    • 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
    • E05Y2201/46—Magnets
    • E05Y2201/462—Electromagnets
    • 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
    • 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
    • E05Y2400/50—Fault detection
    • E05Y2400/506—Fault detection of counterbalance
    • 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
    • E05Y2400/50—Fault detection
    • E05Y2400/514—Fault detection of speed
    • 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
    • E05Y2400/52—Safety arrangements associated with the wing motor
    • E05Y2400/53—Wing impact prevention or reduction
    • E05Y2400/532—Emergency braking or blocking
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/46—Mounting location; Visibility of the elements in or on the wing
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/73—Multiple functions
    • 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
    • E05Y2900/304—Application of doors, windows, wings or fittings thereof for domestic appliances for dishwashers
    • 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
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens
    • 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

Definitions

  • the present invention relates to a domestic appliance having the features of the preamble of claim 1.
  • Domestic appliances of the aforementioned, that is generic type are known from the prior art. They have a pivotable about a horizontal axis formed door, by means of which an opening to the treatment room can be closed.
  • these doors are hinged to the lower side to allow a Aufklappiolo.
  • the household appliance doors are spring loaded to slow down or dampen the door especially when swinging down.
  • so-called door springs are used for this purpose, which are arranged at one end optionally with the interposition of a cable to the door and the other end on the machine base.
  • one or more door springs can be used.
  • a first door spring on the left side of the door and a second door spring on the right side of the door is used.
  • the springs described are often designed as coil springs.
  • a sensor for detecting an opening request is used, which detects a force acting on the decorative panel force.
  • the household appliance according to the invention has a door pivotable about a horizontally extending axis for closing an opening of a treatment room.
  • the door is provided with at least one door spring, which serves to slow down the movement of the door when swinging down.
  • the household appliance has a sensor with which the functionality of the door spring can be monitored. On the basis of the monitoring of the functionality by the sensor can thus be recognized in particular whether the door spring is working properly or whether a failure of the door spring, i. a malfunction of the door spring, such as a breakage of the door spring or at least an insufficient braking effect by the door spring, is present.
  • the domestic appliance according to the invention further comprises an additional braking means, which is activated in the event of a detected by the sensor failure of the door spring and is suitable to slow down the movement of the door when swinging down.
  • the braking agent acts on the door or its door hinge in such a way that a free, ie unrestrained swung down the door is avoided.
  • the additional braking means is preferably activated only when a failure of the door spring has been detected. In order to stop the swiveling movement of the door immediately, the activation takes place immediately as soon as the failure of the door spring has been detected.
  • the domestic appliance advantageously has a device control which evaluates the signals detected by the sensor and draws conclusions about the functionality of the door spring from the signals and their evaluation. Determines whether the door spring is working properly or if there is a malfunction of the door spring. Upon detection of a malfunction or a failure of the door spring, the device control activates the deceleration.
  • the braking means is designed as an electromagnetically actuated brake.
  • This can act for example on a brake pad frictionally on the hinge and thereby prevent the pivoting movement.
  • An advantage of this embodiment is the particularly short reaction time of the braking agent.
  • an electromagnetically actuated brake but also the Einstz a centrifugal brake or a wedge brake or other positive or frictional braking means is conceivable, which has an analog functionality.
  • the senor is designed so that temporal changes in the angle of inclination of the door can be detected.
  • the signals detected by the sensor can thus be used to determine at which speed and which acceleration the pivotal movement of the door takes place, i. how fast the door is opened.
  • the detected signals are compared with predetermined reference values, which are associated with a proper, braked by an intact door spring pivotal movement of the door.
  • the reference values are entered when setting up the household appliance and setting the correct door spring preload of the door spring in the device control or automatically read by this by pivoting and swiveling the door.
  • the senor is able to measure signals in three independent spatial directions. It is therefore a sensor measuring in three dimensions, the three measuring directions preferably being orthogonal to one another.
  • the sensor is arranged and designed so that vibrations of the household appliance and / or acoustic pulses can be detected. If the door spring breaks when the door swings open, it strikes against the body, the hinge or other components of the household appliance. In this case, vibrations and / or acoustic pulses are generated, which can be detected by the sensor. Characterized that the sensor detects signals from three independent spatial directions, it is designed so that the spatial direction of the source of the detected vibrations and / or acoustic pulses with respect to the sensor can be determined. In this way, the source of the signals can be located and thereby a spring break with great certainty can be identified.
  • the sensor or device controller is thus able to reliably distinguish signals resulting from breakage of the spring from interference signals originating from another source.
  • the sensor also detects frequencies in the range of 1-4 kHz, which can be assigned to a stop signal of a broken spring and excludes frequencies from outside frequency ranges at least partially. This further increases the security in the identification of a door spring break.
  • the senor is a monolithic element.
  • the sensor is a monolithic element.
  • less cabling and assembly costs are incurred than would be the case with the use of two or more sensors.
  • a concatenation of several uniaxial acceleration sensors would also be conceivable, but associated with an additional effort during assembly.
  • the inclination sensor is preferably a three-axis acceleration sensor. These types of sensors are also referred to as XYZ acceleration sensors. Such a sensor measures accelerations, where a vibration is proportional to the acceleration.
  • One possible measuring principle of such a sensor is that according to which the sensor capacitively measures the deflection of a reference mass. The deflection of the reference mass is proportional to the acceleration.
  • Such sensors can be designed as a micro-electro-mechanical system (MEMS).
  • MEMS micro-electro-mechanical system
  • accelerations can be precisely measured with such a sensor, while at the same time having a fully integrated design, low costs and a small installation space.
  • the inclination sensor may also be designed as a three-axis vibration sensor or the like. The decisive factor is that he is able to measure signals in three independent spatial directions
  • the tilt sensor is the low installation costs, since the sensor can be positioned, for example, directly on the control electronics. At the same time cost-effective installation results in a more reliable system.
  • the inclination sensor preferably in the aperture, as part of the device control, arranged.
  • the inclination sensor can be carried in particular by an electronics.
  • the sensor may be carried by the control board which is disposed within the device control in a bezel.
  • a further preferred embodiment represents the arrangement of the sensor on the display or operating board, within the display and operating control.
  • Other arrangements of the inclination sensor are also conceivable.
  • the sensor is preferably mechanically decoupled from the decorative plate. This means that there is no direct operative connection between decorative plate and sensor.
  • the sensor is thus not, as known from the prior art sensors, attached to the decorative plate, but rather spatially spaced therefrom.
  • Advantageously, thus acting on the decorative plate signals, such as structure-borne noise, not directly transmitted to the sensor. This reduces the susceptibility to interference.
  • the determined malfunction such as the breakage of the door spring
  • a visual and / or audible warning signal for example as a warning light or warning sound.
  • the user is forewarned in this way and will not be surprised by an unobstructed falling door when the door is opened. If the door is still in its closed position upon detection of the malfunction, it is preferable to block an automatic door opening device, i. the automatic opening mechanism is omitted. The user can then be given the opportunity to open the door in a controlled manner, which minimizes the security risk already explained, whereby the reliability for the use of the door springs can be significantly increased.
  • the voltage supply of the sensor takes place in front of the main switch of the household appliance. It is advantageous here that monitoring of the door spring is made possible even when the household appliance is switched off. According to another particular embodiment of the invention, the voltage supply of the braking means takes place in front of the main switch of the household appliance. This advantageously allows activation of the deceleration even when the household appliance is switched off.
  • a method for operating a domestic appliance with the features of the preamble of claim 14 is proposed in the method.
  • signals are measured by means of a sensor, the signals evaluated and concluded on the basis of the signals on a functioning of the door spring.
  • a deceleration means for slowing down the movement of the door is activated when swinging down.
  • the invention is suitable for all types of household appliances in which a door is pivoted about a horizontal axis, in particular for integrated or fully integrated household appliances, in which the weight of the decorative plate increases the risk of injury.
  • the invention is suitable for ovens, Dampfgarella, microwave ovens, refrigerators and dishwashers.
  • Fig. 1 schematically represents the door area of a dishwasher 100 together with mounted decorative plate 3. Further essential components of the household appliance door 1 are the device control 4 with the control panel 2.
  • a partially integrated dishwasher is shown by way of example in which a portion of the front covered by a decorative plate 3 and a control panel 2 even when the device 100 is closed, ie closed position P1 is visible.
  • the appliance door 1 is further connected via a hinge 8 with the device 100, which allows a pivoting movement, starting from the closed position P1 of the door 1 to the open position P2 about the pivot point 9.
  • the hinge 8 has a door-side mount point 7, in which a door spring 5 is fixed, which on the Device side is hooked in the mount point 6.
  • the purpose of the door spring 5 is to decelerate the door 1, in particular during opening, so that it does not fall under gravity into the open position P2.
  • the position of the device-side Ein Wegstraticians 6 along the path S3 and thus the bias of the door spring 5 can vary and so tune the force of the often designed as a spiral tension spring door spring 5 on the door weight. If the door spring is adjusted correctly, it is ensured that the door remains in any angular position and does not open or close again on its own.
  • the treatment space 107 is an automatic opening device consisting of a motor 101 which drives a rack 102 and displaces it horizontally by the path S1.
  • the door is pressed in the first phase of the automatic door opening in a slightly open position.
  • the spring 5 here slows down the unfolding movement S2 in the normal case, i. acts against the gravity of the door 1, which would otherwise cause a complete unfolding. A break of the spring can have serious consequences here, as the door opens up unchecked.
  • Fig. 2 the door region of a dishwasher 100 is shown schematically.
  • the inclination sensor 10 preferably in the diaphragm 2 is shown here as being arranged as part of the device control 4.
  • Other arrangements of the inclination sensor are also conceivable, but not shown further.
  • the tilt sensor 10 is preferably a three-axis sensor, in particular a three-axis acceleration sensor. This measures signals in the in the Fig. 2 illustrated three orthogonal spatial directions X, Y, Z.
  • FIG Fig. 3 A schematic illustration of the tilt sensor 10 can be found in FIG Fig. 3 ,
  • a test input T for the sensor test.
  • an amplitude-invariant signal or idle signal is tapped, as long as the sensor 10 is not inclined by the three solid angles ⁇ x , ⁇ y or ⁇ z , or as long as no accelerations a x , a y or a z act on the sensor 10. If one of these parameters changes, another signal is output at the outputs X, Y and Z.
  • the three signals of the sensor 10 by means of a control computer (not shown) are read and evaluated.
  • the waveform will be at the X signal output during door opening as in Figure. 5 illustrated example.
  • Fig. 4 the signals of the sensor for monitoring the opening movement are displayed. If the appliance door is in the closed position P1, the signal at the signal output X points For example, an amplitude-invariant high first level. This only changes when the motor-driven rack travels the path S1 and swings the door open. In the second phase of the door opening, the signal level at the signal output X continues to drop during the opening stroke S2 until the door in position P2 is fully swung open by the user by hand. In this position, the signal at the signal output X has a second, compared to the first level lower level. If the door spring 5 intact, the opening process takes place depending on the set spring tension more or less damped. The slope or the gradient of the signal is relatively low in this case.
  • the gradient of the signal or the gradient in the signal of the outputs X, Y, Z represents a measure of the inclination rate of the domestic appliance door 1.
  • the inclination rate is in turn determined by the bias of the door spring 5 and an intact spring system. Reference parameters for the gradient are preferably entered when setting up the household appliance 100 and setting the correct bias of the door spring 5 in the device control 4 or are read by this automatically by opening and pivoting the door 1.
  • the acceleration sensor 10 may also be detected by the acceleration sensor 10 preferably directly. Due to its spatial orientation, the XYZ acceleration sensor 10 offers the possibility of directly detecting the breakage of the door spring 5.
  • the household appliance door 1 and the integrated acceleration sensor 10 are connected via the door hinge 8 mechanically and thus acoustically with the door spring 5.
  • the spring 5 strikes against the body of the household appliance 100 or directly against the hinge 8, which propagates as an acoustic pulse and thus as acceleration to the XYZ acceleration sensor 10.
  • the signal outputs of the sensor 10 provide a different signal intensity, whereby a spring break can be identified and located.
  • Fig. 6 the signal outputs for a spring break are shown by way of example.
  • One axis in each case measures a signal in one of the spatial directions X, Y, Z.
  • the respective signal level is in Fig. 6 applied over time.
  • An in Fig. 6 Dashed value L which can also be different depending on the direction of space, can also be used, for example, as a threshold value, whose violation is evaluated by the device controller 4. If at least one threshold is exceeded, the device control 4 closes on a spring break.
  • the source of the signals can be localized by the device controller 4. Depending on the result of this localization, the device controller 4 determines whether the signals are due to breakage of the spring 5 or to another cause.
  • the device control 4 provides for the outputting of an error message, in particular an optical and / or audible warning signal.
  • the device controller is able to block any existing automatic door opening mechanisms so that the door remains closed, and to activate a braking means for slowing down the movement of the door 1 when swinging down.
  • Fig. 7 the door region of a domestic appliance 100 according to the invention is shown schematically.
  • This includes in particular a braking agent 11.
  • This is in the present case designed as an electromagnetically operated brake, which acts via a brake pad 12 frictionally directly to the hinge 8.
  • a braking agent 11 This is in the present case designed as an electromagnetically operated brake, which acts via a brake pad 12 frictionally directly to the hinge 8.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Refrigerator Housings (AREA)

Claims (14)

  1. Appareil ménager (100), en particulier lave-vaisselle, cuiseur vapeur ou four, avec une porte (1) pivotant autour d'un axe horizontal pour la fermeture d'un espace de traitement, qui est munie d'un ressort de porte (5) qui sert à freiner le mouvement de la porte (1) lors du pivotement vers le bas,
    caractérisé en ce que
    l'appareil ménager présente un capteur (10) qui permet de surveiller l'aptitude au fonctionnement du ressort de porte (5), et un moyen de freinage (11) supplémentaire qui est activé en cas de défaillance du ressort de porte (5) détectée par le capteur (10) et qui est approprié pour freiner le mouvement de la porte (1) lors du pivotement vers le bas.
  2. Appareil ménager (100) selon la revendication précédente,
    caractérisé en ce que
    des modifications dans le temps de l'angle d'inclinaison de la porte (1) peuvent être détectées avec le capteur (10).
  3. Appareil ménager (100) selon la revendication précédente,
    caractérisé en ce que
    le capteur (10) peut détecter des signaux en provenance de trois directions spatiales indépendantes.
  4. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le capteur (10) est disposé et constitué de telle sorte que des vibrations de l'appareil (100) et/ou des impulsions acoustiques qui sont déclenchées en particulier par la rupture du ressort de porte (5) peuvent être détectées.
  5. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le capteur (10) permet de déterminer la direction spatiale de la source des vibrations et/ou impulsions acoustiques détectées par rapport au capteur (10).
  6. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé par
    une commande d'appareil (4) avec laquelle des signaux détectés par le capteur peuvent être analysés.
  7. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le capteur (10) est raccordé mécaniquement au ressort de porte (5) par le biais de la charnière de porte (8).
  8. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que,
    concernant le capteur (10), il s'agit d'un ou de plusieurs capteurs d'accélération mono-axiaux caténés.
  9. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le capteur (10) est un capteur triaxial, en particulier un capteur d'accélération triaxial ou un capteur de vibrations triaxial.
  10. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le moyen de freinage (11) agit par liaison par friction sur la charnière (8).
  11. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le moyen de freinage (11) est réalisé en tant que frein pouvant être actionné par voie électromagnétique.
  12. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le moyen de freinage (11) est réalisé en tant que frein centrifuge ou en tant que frein à coin.
  13. Appareil ménager (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    l'alimentation en tension du capteur (10) et/ou du moyen de freinage (11) s'effectue en amont de l'interrupteur général de l'appareil ménager (100).
  14. Procédé de fonctionnement d'un appareil ménager qui présente une porte (1) pivotant autour d'un axe horizontal pour la fermeture d'un espace de traitement (107), qui est munie d'un ressort de porte (5) qui sert à freiner le mouvement de la porte (1) lors du pivotement vers le bas,
    caractérisé par les étapes de procédé suivantes :
    - mesure de signaux au moyen d'un capteur (10) ;
    - analyse des signaux et conclusion sur une aptitude au fonctionnement du ressort de porte (5) à l'aide des signaux ;
    - en cas de détection d'une défaillance du ressort de porte (5) :
    - activation d'un moyen de freinage (11) pour le freinage du mouvement de la porte (1) lors du pivotement vers le bas.
EP12401038.0A 2012-03-07 2012-03-07 Appareil ménager doté d'une porte Active EP2636355B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12401038.0A EP2636355B1 (fr) 2012-03-07 2012-03-07 Appareil ménager doté d'une porte
US13/786,622 US20130232877A1 (en) 2012-03-07 2013-03-06 Household appliance with door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12401038.0A EP2636355B1 (fr) 2012-03-07 2012-03-07 Appareil ménager doté d'une porte

Publications (2)

Publication Number Publication Date
EP2636355A1 EP2636355A1 (fr) 2013-09-11
EP2636355B1 true EP2636355B1 (fr) 2015-10-07

Family

ID=45928758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12401038.0A Active EP2636355B1 (fr) 2012-03-07 2012-03-07 Appareil ménager doté d'une porte

Country Status (2)

Country Link
US (1) US20130232877A1 (fr)
EP (1) EP2636355B1 (fr)

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US20130232877A1 (en) 2013-09-12

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