EP4161338A1 - Activation, dépendant de la direction, du fonctionnement de la porte d'un lave-vaisselle domestique - Google Patents

Activation, dépendant de la direction, du fonctionnement de la porte d'un lave-vaisselle domestique

Info

Publication number
EP4161338A1
EP4161338A1 EP21729435.4A EP21729435A EP4161338A1 EP 4161338 A1 EP4161338 A1 EP 4161338A1 EP 21729435 A EP21729435 A EP 21729435A EP 4161338 A1 EP4161338 A1 EP 4161338A1
Authority
EP
European Patent Office
Prior art keywords
door
movement
drive
control unit
drive motor
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.)
Pending
Application number
EP21729435.4A
Other languages
German (de)
English (en)
Inventor
Hans-Holger Pertermann
Aaron Friedke
Martin Rittner
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
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4161338A1 publication Critical patent/EP4161338A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • E05F15/627—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • 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
    • 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
    • A47L15/4274—Arrangement of electrical components, e.g. control units or cables
    • 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
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/08—Other manual input
    • 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
    • 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
    • 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
    • E05Y2201/434—Electromotors; Details thereof
    • E05Y2201/438—Rotors
    • 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
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/654—Cables
    • 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
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/688—Rollers
    • 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
    • E05Y2400/36—Speed control, detection or monitoring
    • 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
    • E05Y2400/40—Control units therefor
    • 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
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/45—Control modes
    • 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

Definitions

  • a method for operating a household dishwasher with a washing container having a loading opening is proposed, the loading opening being closable with the aid of a door of the household dishwasher, the household dishwasher comprising an electrical drive device, with the help of which the door can be moved between a closed position in which it is the Loading opening closes, and an open position in which the washing container is accessible from the outside, is moved.
  • washing liquor water or water with detergent and / or rinse aid
  • household dishwashers In order to put the items to be washed in the washing container or to remove them from the washing container again after the cleaning process, household dishwashers have a door that moves between an open position and a closed position can, of course, intermediate positions are also possible (partly open).
  • Household dishwashers also already exist which have an electric drive motor with the aid of which the door can be moved back and forth between the open position and the closed position.
  • an operating element e.g. an operating button. If the control element is operated by an operator, the drive is activated to move the door.
  • the object of the present invention is to further develop the known prior art.
  • the household dishwasher according to the invention is characterized in that it has a control unit which is designed to detect a manual movement of the door carried out by an operator in a certain direction of movement by detecting at least one parameter of the drive device and, as a result of the movement, the door with the aid to move the drive device further in said direction of movement.
  • the drive device is therefore no longer activated by manually operating a control element that is preferably provided specifically before. Rather, it is provided that the household dishwasher automatically detects a movement of the door carried out manually by the operator and interprets the door movement impulse triggered by the operator as an output signal in order to detect the movement of the door in the direction in which it was moved manually by the operator. move on.
  • One or more parameters of the drive device itself are therefore used to detect the movement of the door by the operator.
  • the background is that a manual movement of the door through the coupling Treatment of the door with the drive device also causes a manual movement of the drive device or parts thereof.
  • one or more elements of the drive device for example a mechanical connection that connects the door to an electric drive motor of the drive device, are monitored with the aid of a sensor to determine whether a movement (for example a rotary movement or a pivot movement ) of the one or more elements of the drive device takes place without the drive device having previously been activated by the control unit. This is an indication that the door has been moved manually by the operator.
  • control unit If the control unit recognizes that a corresponding movement of the door has been made by the operator, this is interpreted to the effect that the operator would like to continue this movement up to a certain position of the door. In this case, the control unit activates the drive device in order to effect this further movement of the door.
  • the door is thus moved further with the aid of the drive device when an initial movement impulse of the door is detected, which was caused by the operator moving the door manually.
  • the door of the household dishwasher according to the invention is preferably a front door that can be swung open around a lower, widthwise axis of rotation to the front and un th (from the point of view of a user who is standing in front of the household dishwasher to operate it).
  • this front door In its closed position, this front door is in particular essentially upright vertically. It closes the front loading opening of the washing compartment of the household dishwasher. To open it, it can be pivoted forward and downward about the lower horizontal axis. In the fully open position, it lies in particular at least almost horizontally.
  • control unit is designed to move the door further with the aid of the drive device as a result of the movement by the operator until an end position is reached.
  • the end position corresponds to the through depending on the direction of movement manual movement of the open position or the closed position of the door carried out by the operator. So if the operator moves the door a little way in the direction of the open position, this is interpreted as a sign by the control unit that the operator wants to open the door completely. In this case, the door is moved further until it assumes its open position (the open position is the position in which the door cannot be opened any further).
  • the operator preferably only has to make a short movement of the door in the direction of the open position or in the direction of the closed position in order to give the control unit the signal that he would like to move the door into the corresponding end position (open position or closed position).
  • the rest of the movement is then carried out by the drive device, which is activated accordingly by the control unit.
  • the respective end position can be recognized, for example, with one or more sensors. It is also conceivable that the control unit always knows in which position the door is currently by evaluating one or more parameters of the drive device. On the basis of this data, the control unit finally knows how far it has to move the door after recognizing a manual movement impulse in order to reach the corresponding end position. A sensor that detects the corresponding end position of the door is not necessary in this case.
  • the drive device comprises a permanently excited drive motor with a rotor, which is mechanically coupled to the door in such a way that the movement of the door manually effected by the operator causes a movement of the rotor.
  • Permanently excited drive motors have the property of generating an electromotive force in the winding (stator) when the rotor rotates, which creates an electrical force in the drive motor Voltage is induced, which can be tapped at the motor terminals and evaluated by the control unit.
  • the non-activated drive motor acts as a generator when the door is moved manually.
  • the rotor can turn a certain angular amount, which generates a voltage pulse on the motor terminals for a short time.
  • the polarity or phase sequence of the voltage depends on the direction of movement and the voltage level is proportional to the angular speed of the door.
  • control unit is designed to detect the electrical voltage as a characteristic of the drive device (in this case the electrical voltage corresponds to the above-mentioned characteristic). Furthermore, the control unit is designed to operate the drive motor upon detection of the electrical voltage in such a way that the door is moved further in the mentioned direction of movement.
  • additional sensors are not required, which would detect movement of the door or the drive motor. Rather, during the manual movement of the door, the drive motor itself provides a characteristic value which can be recognized or evaluated by the control unit through the aforementioned generator operation.
  • both the desire and the intended direction of door activation can be recognized by the control unit and the drive device activated to move the door in the direction of movement set by the operator by manual movement the door was told to keep moving.
  • control unit When the door is moved manually by the operator, an electrical voltage is induced in the drive motor, the control unit being designed to detect the electrical voltage as a characteristic of the drive device, and the control unit being designed to control the drive motor when the electrical voltage is detected to operate in such a way that the door is moved further in the direction of movement mentioned.
  • Another parameter that could additionally or alternatively be monitored by the control unit is, for example, the rotation of the rotor, which could be monitored with the aid of a sensor.
  • the control unit is designed to evaluate the polarity (in the case of a direct current or alternating current motor) or phase sequence (in the case of a three-phase motor) of the electrical voltage that occurs during the movement of the rotor during the movement of the Door is induced.
  • the polarity of the electrical voltage means its sign (+ or -)
  • the phase sequence means the time sequence of the energization of three electrical phases of the three-phase current applied to the drive motor or the generated generator voltage.
  • the control unit is designed to operate the drive motor taking into account the polarity or phase sequence. Since the polarity or phase sequence depends on whether the operator moves the door manually in the direction of the open position or in the direction of the closed position, the control unit can tell from the polarity or the phase sequence whether the operator is opening or closing the door would like.
  • control unit drives the drive motor in a direction (clockwise or counterclockwise rotation of the rotor) after detecting an induced voltage on the drive motor, which causes the door to be moved with the aid of the drive device in the direction of movement that corresponds to the direction of movement of the manual movement of the door previously made.
  • the control unit therefore ensures that the door is moved further in the same direction of movement after a manual movement impulse.
  • the control unit is designed to evaluate the amount and / or the frequency of the electrical voltage that is induced during the movement of the rotor when the door is moved manually by the operator, the control unit using this is designed to operate the drive motor taking into account the amount and / or the frequency of the induced electrical voltage.
  • the control unit it would be conceivable for the control unit to measure the drive speed of the drive motor and thus the motion caused by the drive motor speed of the door as a function of the amount mentioned and / or the frequency of the induced electrical voltage selects. If the operator moves the door quickly by hand, the door is also moved on relatively quickly by the drive motor. If, on the other hand, the door is moved relatively slowly by the operator, then the movement by the drive motor also takes place relatively slowly.
  • limit values or ranges for the detected amount and / or the frequency of the induced electrical voltage can be stored in the control unit, a certain drive speed of the drive motor being selected depending on the detected amount.
  • control unit is designed to evaluate the amount of the angle of rotation of the rotor in the aforementioned manual movement of the door, the control unit also being designed to control the drive motor taking into account the amount of the angle of rotation operate.
  • the control unit is able to recognize which position the door is currently in or after the manual movement by the operator. For example, if the door has a maximum opening angle of 90 ° and the control unit detects that the door has been moved 10 ° from the closed position, the control unit knows that it will open the door further after the operator's manual movement impulse 80 ° to move the door into its open position.
  • the opening angle of the door can be calculated from the angle of rotation of the rotor, as this is mechanically coupled to the door. A certain angle of rotation of the rotor thus always corresponds to a certain opening angle of the door.
  • the drive motor is mechanically coupled to the door via a gear so that a rotation of the rotor of the electric drive motor causes the door to move and a movement of the door causes the rotor to rotate.
  • a gearbox has the advantage that a speed and the torque of the drive motor can be converted in such a way that the rotary movements of the rotor can be optimally adapted to the requirements of a door opening mechanism.
  • a reduction gear is provided in which the transmission ratio of the drive speed of the rotor of the electric drive motor to the output speed of the output shaft of the gearbox is greater than 1.
  • the output shaft is preferably connected in a rotationally test manner to a rotatably mounted roller, on the outer circumference of which a drive cable rests at least in sections, which is coupled to the door for its movement.
  • the roller is attached, for example, to a side wall of a base support, which is arranged below the washing compartment and is used to accommodate functional components such as a circulation pump, emptying pump, program control unit, decalcification system, etc. ...
  • the drive motor can be kept sufficiently compact, which makes it easier to accommodate it, especially in the base support below the dishwasher of the household dishwasher.
  • a sufficiently large torque can be generated on the roller and the drive cable for moving the door.
  • the transmission can be, for example, a planetary gear, a spur gear or a belt gear.
  • a drive connection between the door and the drive motor is rope-free and / or belt-free.
  • the drive connection between the door and the drive motor is preferably carried out exclusively with the aid of solid bodies (i.e. no drive cables or belts). In this way, a torque of the drive motor can advantageously be transmitted reliably and with low vibration to the door.
  • the transmission is not designed to be self-locking. This has the advantage that the door can be moved manually by the operator even when the drive motor is deactivated.
  • the gearbox does not block the door when the drive motor is deactivated. A rotation of the output shaft of this non-self-locking gear by manual moving conditions of the door is therefore possible when the electric drive motor is de-energized.
  • the drive motor is coupled to the door via a drive cable, so that a rotation of the rotor causes a movement of the door and a movement of the door causes a rotation of the rotor.
  • the drive motor is therefore not or at least not exclusively connected to the door with the aid of solid-state gear parts. Rather, at least part of the drive train between the drive motor or its rotor and the door is implemented by a drive cable.
  • the drive rope is in contact with a rotatably mounted roller of the household dishwasher, in particular wraps around it, and that the drive motor is designed to drive the Rol le to move the drive cable in such a way that the door is opened by operating the drive motor Form of a pivoting movement is moved.
  • roller means, for example, a rotatably mounted element which, in particular, has rotational symmetry with respect to a central axis.
  • the role can, for example, also be referred to as a drive rope pulley.
  • a drive rope is in contact with the roller along an angle of wrap, for example, the angle of wrap, in particular essentially, remaining constant during a movement of the drive rope.
  • the drive cable preferably comprises plastic or metal.
  • the drive rope can comprise yarn or textiles, in particular natural fibers and / or man-made fibers.
  • the drive cable is formed from several drive cable sections that are mechanically connected to one another.
  • the drive cable does not have a fixed connection to the roller, but merely has an abutting contact with the roller. The role acts as a direct drive for the drive rope.
  • the drive rope is driven ben only by means of the roller.
  • the roller and the drive cable are designed in such a way that drive force is transmitted from the roller to the drive cable exclusively with the aid of a frictional connection.
  • the drive force is preferably transmitted from the roller to the drive cable with the aid of drive cable friction.
  • a tangential friction force develops along a touched roller circumference, which is used to realize the door movement.
  • a tensile force on the door which is caused by the drive rope, can thereby be limited, since after a limit tensile force is exceeded, sliding friction sets in on a contact surface between the drive rope and the roller.
  • the door has a lever to which one end of the drive cable is connected, the door, the drive motor and the drive cable being set up in such a way that a change in a tensile force on the lever with the aid of the drive motor and the drive cable causes the pivoting movement of the Door effects.
  • the domestic dishwasher preferably comprises a spring element which is connected to the housing and to the drive cable and is set up to at least partially compensate for a weight of the door.
  • the spring element is preferably a helical spring.
  • a spring characteristic of the Federele element is progressive, degressive or linear.
  • the spring element is preferably designed as a tension spring.
  • the drive cable is preferably provided between the roller and the lever and between the roller and the spring element as a continuous drive cable. It is also conceivable that the drive cable and the pulley are set up in such a way that when the opening angle of the door changes due to manual force acting on the door, the drive cable slips over the pulley.
  • the method according to the invention is characterized in that a manual movement of the door carried out by an operator in a certain direction of movement is recognized by detecting a parameter of the drive device with the aid of a control unit of the domestic dishwasher, with the door as a result of the movement with the aid of the drive device is moved further in the direction of movement mentioned.
  • the operator does not have to move the door completely into the desired end position. Rather, it is sufficient for the operator to generate a certain movement impulse by manually moving the door. testifies, which is recognized by a control unit of the domestic dishwasher. After recognizing the movement impulse, the control unit activates the drive device of the domestic dishwasher in such a way that the door is moved further in the direction of movement specified by the operator. In this case, the majority of the door movement is taken over by the drive device, the initial movement of the door by the operator merely serving as a start signal for the movement.
  • the drive device comprises a permanently excited drive motor with a rotor, which is mechanically coupled to the door in such a way that the movement of the door manually effected by the operator causes a movement of the rotor, whereby an electrical voltage in the drive motor is induced, the control unit detecting the electrical voltage as a characteristic of the drive device, and the control unit, when the electrical voltage is detected, operates the drive motor in such a way that the door is moved further in the direction of movement mentioned.
  • the advantage of such a drive motor is that a movement of the rotor is recognized as soon as the door is moved, since the rotor is in operative connection with the door. If a movement of the rotor is detected when the drive motor is actually deactivated, the control unit evaluates this as a signal that the operator wishes the door to move. There is no need for separate sensors that detect movement of the door, such as a proximity sensor.
  • the amount and / or the frequency of the electrical voltage that is induced during the movement of the rotor during the manual movement of the door caused by the operator and / or the amount of the rotation angle of the rotor in the case of the mentioned manually effected movement of the door is evaluated by the control unit, and the drive motor is operated taking into account the amount and / or the frequency of the electrical voltage and / or the amount of the angle of rotation.
  • the control unit evaluates the amount and / or the frequency of the electrical voltage and / or the amount of the angle of rotation.
  • the amount of the angle of rotation can be used to determine how far the door is moved on after the detection of the movement impulse caused by the operator.
  • the polarity or phase sequence of the electrical voltage which is induced during the movement of the rotor when the door is moved manually by the operator, is evaluated by the control unit, the drive motor taking the polarity into account or phase sequence is operated.
  • the control unit evaluates the polarity or the phase sequence of the electrical voltage, it is possible to identify the direction in which the door is being moved by the operator. The subsequent de direction of movement by the drive motor ultimately corresponds to the movement direction in which the door was moved by the operator.
  • FIG. 1 a side view of a household dishwasher
  • FIG. 2 shows a partially sectioned side view of a detail of a household dishwasher according to the invention
  • FIG. 3 shows a partially sectioned side view of a household dishwasher according to the invention
  • Figure 4 is a plan view of a section of a household dishwasher according to the invention.
  • Fig. 1 shows a schematic side view of a household dishwasher 1.
  • the household dishwasher 1 comprises a washing container 3, which is through a door 10 can be closed in a watertight manner.
  • the washing container 3 is preferably qua deriform.
  • the washing compartment 3 and the door 10 form an internal washing area for washing items to be washed.
  • the door 10 is shown in Fig. 1 with solid lines in its closed position GE, in which they close the wash cabinet to the outside. Furthermore, the door 10 is shown in its open position with dashed lines, wherein in the open position the washing area is accessible to an operator via a loading opening 2 in order to place items in the domestic dishwasher 1 or to take them out of it. By pivoting about a pivot axis 11 seen at a lower end of the door 10, the door 10 can therefore be closed or opened to whoever.
  • the domestic dishwasher 1 also has at least one washware receptacle, not shown.
  • washware receptacles can be provided, for example a lower washware receptacle or a lower basket, an upper washware receptacle or an upper basket or a cutlery drawer.
  • the rinsing container 3 is preferably fixedly connected to the bottom housing 17.
  • the bottom housing 17 and the washing container 3 form a housing 15 of the domestic dishwasher 1.
  • the housing 15 comprises, for example, further housing sections (not identified by reference characters) which surround and cover the washing compartment 3.
  • Fig. 2 shows a schematic section of the side view of a domestic dishwasher 1 with further details.
  • the household dishwasher 1 includes the housing 15, the door 10 pivotably connected to the housing 15, a drive cable 8 connected to the door 10, a roller 9 in contact with the drive cable 8 and an electric drive motor 6 which is set up for this purpose is to drive the roller 9 for moving the drive cable 8 in such a way that a pivoting movement of the door 10 is effected.
  • the door 10 comprises a lever 13, with which a first end of the drive cable 8 is connected.
  • the door 10, the drive motor 6 and the drive cable 8 are set up in such a way that a change in a tensile force F1 on the lever 13 with the aid of the drive motor 6 and the drive cable 8 causes the door 10 to pivot.
  • the roller 9 is drive-connected to the drive motor 6.
  • the door 10 is connected to the housing 15 with the aid of a hinge 12, for example.
  • the pivot axis 11 runs through the hinge 12.
  • the door 10 comprises a plate-shaped door section which, when the door 10 is closed, covers or closes the loading opening 2 (see FIG. 1).
  • the roller 9 and the drive cable 8 are preferably set up in such a way that drive force is transmitted from the roller 9 to the drive cable 8 exclusively with the aid of a frictional connection.
  • a friction surface 16 is formed between the roller 9 and the drive cable 8.
  • the frictional connection takes place, for example, with the aid of rope friction.
  • the drive cable 8 wraps around the roller 9 along a circumferential angle which can be referred to as wrap angle ⁇ .
  • wrap angle ⁇ is between 90 ° and 540 °.
  • the loop angle ⁇ remains essentially constant.
  • FIG. 3 shows a schematic side view of a further embodiment of the domestic dishwasher 1, which further develops the embodiment shown in FIG. 2.
  • the drive cable 8 has the loop angle a around the roller 9 between 360 ° and 540 °, preferably between 400 ° and 500 °, more preferably between 425 ° and 475 ° and even more preferably between 445 ° and 455 ° on.
  • the wrap angle a is exactly 450 °. This can also be referred to as 1.25 wraps of rope around the roller 9.
  • a maximum tensile force that pulls on the lever 13 can be set or limited.
  • the domestic dishwasher 1 comprises a spring element 20 which is connected to the housing 15 and to the drive cable 8 and is set up to at least partially compensate for a weight G of the door 10. Included a second end 21 of the drive cable 8 is connected to the spring element 20.
  • the spring element 20 is designed as a helical spring and a tension spring.
  • the spring element 20 comprises a first end 22 which is connected to the second end 21 of the drive cable 8.
  • the spring element 20 comprises a second end 23 which is firmly connected to the bottom housing 17. If the drive motor 6 drives the roller 9 in such a way that the door 10 executes an opening movement, the spring element 20 is elongated.
  • the domestic dishwasher 1 comprises a deflection pulley 19 which is set up to deflect the drive cable 8 between the pulley 9 and the door 10.
  • the pulley 19 for example, the course of the drive rope 8 (rope course) can be designed.
  • the wrap angle a can be increased or adapted to the geometrical boundary conditions of the housing 15.
  • the drive cable 8 and the roller 9 are set up in such a way that when an opening angle ⁇ of the door 10 changes due to manual force F2 acting on the door 10, the drive cable 8 slides over the roller 9. This occurs in particular when the spring element 20 is abruptly relieved, in particular when the door 10 is quickly closed by means of manual force F2, and a spring force F3 pulls the second end 21 of the drive cable 8 when the roller 9 is blocked.
  • the opening angle ß Publ is an angle that is spanned between the door 10 and a vertical plane ne V, through which the pivot axis 11 extends.
  • the household dishwasher 1 is designed, for example, in such a way that a combination of spring force F3 and weight G of the door 10 at every opening angle ß of the door 10 enables the drive cable 8 to be wound onto the roller 9 without slipping and the drive cable 8 to be unwound from the roller 9 .
  • the domestic dishwasher 1 comprises a control unit 5 which is set up to control the drive motor 6 in such a way that the pivoting movement of the door 10 is effected.
  • the control unit 5 is set up to control the drive motor 6 in such a way that the door 10 executes a complete opening movement and / or a partial opening movement and / or a complete closing movement and / or a partial closing movement.
  • the control unit 5 and the drive motor 6 are involved in signaling coupled together (indicated by dashed lines).
  • the domestic dishwasher 1 comprises an operator interface 18 which is set up to communicate with the control unit 5 for controlling the drive motor 6.
  • the operator interface 18 preferably comprises a push button, a touch display, a microphone, a sensor or some other input device.
  • roller 9 and / or the drive cable 8 and / or the spring element 20 and / or the drive motor 6 and / or the lever 13 can be provided redundantly, for example, and arranged along the side walls of the domestic dishwasher 1, for example.
  • Fig. 4 shows a detail of a section through the bottom housing 17 in a plan view.
  • the drive motor 6 is preferably drive-connected to the roller 9 with the aid of the rotor 7 of the drive motor 6 (this comprises a rotor 7 and a stator).
  • the drive motor 6 or its rotor 7 can be in operative connection with the roller 9 directly or via a gear 24, in particular a worm gear.
  • the roller 9 is rotated around a central axis M with the help of the drive motor 6 and the gearbox 24.
  • the roller 9 has a rotational symmetry with respect to the central axis M, for example.
  • the gear 24 is set up to inhibit the movement of the roller 9 when a torque is applied to the roller 9 from outside the gear 24. This case can occur, for example, when an operator opens the door 10 manually so that the spring force F3 pulls on the second end of the drive cable 8 and thereby applies a torque to the roller 9. For example, if such a spring force F3 exceeds a certain amount, then the drive rope 8 slips over the roller 9. On the friction surface 16, sliding friction then occurs.
  • the control unit 5 operates the drive motor of the drive mechanism. direction 4 finally such that the initial manual movement of the door 10 is continued.
  • the door 10 is preferably moved further until a defined end position (preferably the open position or the closed position of the door 10) is reached.
  • the rotor 7 of the drive motor 6 is also moved, since the door 10 is mechanically coupled to the rotor 7.
  • the movement of the rotor 7 induces an electrical voltage in the drive motor 6, which can be evaluated by the control unit 5.
  • a detected electrical voltage at the actually deactivated drive motor 6 thus means that the door 10 was moved manually by the operator. This is evaluated by the control unit 5 to the effect that the operator wishes to open or close the door 10.
  • the drive motor 6 is finally activated, the door 10 being moved further in the same direction of movement as it was also moved by the operator.
  • the drive motor 6 is activated indirectly by the manual movement of the door 10.
  • control unit 5 detects and evaluates an electrical voltage that is generated in the drive motor 6 during the manual movement of the door 10 induced by the operator.
  • a household dishwasher (another name for household dishwashing machine) generally has a movable door, in particular a front door, which can be manually positioned via hinges for loading and unloading the dishes. Can be opened or closed at any angle from 0 ° to a maximum of 90 ° from vertical to horizontal, the weight of the door being compensated by a spring mechanism and a friction element preventing the door from moving automatically, so that any stable intermediate positions are possible.
  • CADOC mechatronic drive system
  • a permanently excited electric motor (DC or PMSM) can be used in the mechatronic drive train.
  • This drive motor can be connected to the door hinge and the door leaf via a mechanical power flow by means of suitable gear elements.
  • Permanently excited drive motors have the property of generating an electromotive force (EMF voltage / Back-EM F) in the winding when the rotor rotates, which can be tapped at the motor terminals.
  • EMF voltage / Back-EM F electromotive force
  • the non-activated drive motor acts as a generator.
  • the rotor can turn a certain angular amount, which generates a voltage pulse on the motor terminals for a short time.
  • the polarity or phase sequence of the voltage depends on the direction of movement and the voltage level is proportional to the angular speed of the door.
  • both the request and the intended direction of door activation can be recognized by the electronics and the corresponding direction of door movement activated.
  • the door speed can be set variably via the angular speed as a reaction to the impulse of the intention to move.
  • a mechatronic drive is therefore conceivable consisting of a permanently excited drive motor with a gear unit for opening and closing the door of a household dishwasher, the drive being activated by externally pushing the door, with the mechanical coupling of the door to the drive motor in this by rotating A generator voltage is induced in the rotor, which is used as an activation signal for the door drive.
  • the voltage level of the generator's voltages induced in the motor windings to influence the speed of the door movement can also be evaluated.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)

Abstract

L'invention propose un lave-vaisselle domestique (1) comprenant un compartiment pour laver la vaisselle (3) qui présente une ouverture de chargement (2), l'ouverture de chargement (2) pouvant être fermée au moyen d'une porte (10) du lave-vaisselle domestique (1), le lave-vaisselle domestique (1) comprenant un dispositif d'entraînement électrique (4) au moyen duquel la porte (10) peut être déplacée entre une position fermée, dans laquelle elle ferme l'ouverture de chargement (2) et une position ouverte, dans laquelle le compartiment pour laver la vaisselle (3) est accessible depuis l'extérieur. Le lave-vaisselle domestique (1) est caractérisé en ce que le lave-vaisselle domestique (1) comprend une unité de commande (5) qui est conçue pour identifier un mouvement manuel de la porte (10) effectué par un opérateur dans une direction de mouvement spécifique par détection d'une variable caractéristique du dispositif d'entraînement (4) et pour déplacer la porte (10) davantage dans ladite direction de mouvement au moyen du dispositif d'entraînement (4) suite au mouvement. L'invention concerne en outre un procédé de fonctionnement d'un lave-vaisselle domestique (1).
EP21729435.4A 2020-06-05 2021-05-25 Activation, dépendant de la direction, du fonctionnement de la porte d'un lave-vaisselle domestique Pending EP4161338A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020207064.4A DE102020207064A1 (de) 2020-06-05 2020-06-05 Richtungsabhängige Aktivierung der Türbetätigung einer Haushaltsgeschirrspülmaschine
PCT/EP2021/063790 WO2021244889A1 (fr) 2020-06-05 2021-05-25 Activation, dépendant de la direction, du fonctionnement de la porte d'un lave-vaisselle domestique

Publications (1)

Publication Number Publication Date
EP4161338A1 true EP4161338A1 (fr) 2023-04-12

Family

ID=76250293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21729435.4A Pending EP4161338A1 (fr) 2020-06-05 2021-05-25 Activation, dépendant de la direction, du fonctionnement de la porte d'un lave-vaisselle domestique

Country Status (5)

Country Link
US (1) US20230184021A1 (fr)
EP (1) EP4161338A1 (fr)
CN (1) CN115697171A (fr)
DE (1) DE102020207064A1 (fr)
WO (1) WO2021244889A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1031032B1 (de) * 2022-11-11 2024-06-10 Miele & Cie Verfahren zum Betreiben eines Reinigungsgeräts, Verfahren zum Trainieren eines neuronalen Netzes und Reinigungsgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20130044A1 (it) * 2013-01-15 2014-07-16 Faringosi Hinges Srl Cerniera
DE102014107544A1 (de) * 2014-05-28 2015-12-03 Miele & Cie. Kg Backofen
DE102016205367A1 (de) 2016-03-31 2017-10-05 Meiko Maschinenbau Gmbh & Co. Kg Reinigungsvorrichtung und Verfahren zum Reinigen von Reinigungsgut
DE102017218501A1 (de) 2017-10-17 2019-04-18 BSH Hausgeräte GmbH Haushaltsgerät
DE102017218493A1 (de) 2017-10-17 2019-04-18 BSH Hausgeräte GmbH Haushaltsgerät

Also Published As

Publication number Publication date
CN115697171A (zh) 2023-02-03
US20230184021A1 (en) 2023-06-15
DE102020207064A1 (de) 2021-12-09
WO2021244889A1 (fr) 2021-12-09

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