Direction-dependent activation of the door operation of a domestic dishwasher

Patent metadata

Field	Value
Publication number	US-2023184021-A1
Application number	US-202117924127-A
Country	US
Kind code	A1
Filing date	May 25, 2021
Priority date	Jun 5, 2020
Publication date	Jun 15, 2023
Grant date	—

Abstract

A household dishwasher includes a washing container having a loading opening, a door, an electrical drive device configured to move the door between a closed position, in which the door closes the loading opening, and an open position, in which the washing container is accessible from outside, and a control unit configured to identify a manual movement of the door performed by an operator in a direction of movement by detecting a characteristic variable of the drive device and to move the door further in the direction of movement via the drive device as a result of the manual movement of the door by the operator.

First claim

1 - 15 . (canceled)

16 . A household dishwasher, comprising:
a washing container having a loading opening; a door; an electrical drive device configured to move the door between a closed position, in which the door closes the loading opening, and an open position, in which the washing container is accessible from outside; and a control unit configured to identify a manual movement of the door performed by an operator in a direction of movement by detecting a characteristic variable of the drive device and to move the door further in the direction of movement via the drive device as a result of the manual movement of the door by the operator.

17 . The household dishwasher of claim 16 , wherein the control unit is configured to move the door via the drive device as a result of the manual movement of the door by the operator until reaching an end position which corresponds to the open position or the closed position of the door as a function of the direction of movement of the manual movement performed by the operator.

18 . The household dishwasher of claim 16 , wherein the drive device comprises a permanently excited drive motor which includes a rotor which is mechanically coupled to the door, such that the manual movement of the door by the operator causes a movement of the rotor, thereby inducing an electrical voltage in the drive motor, said control unit configured to detect the electrical voltage as the characteristic variable of the drive device and upon detection of the electrical voltage to operate the drive motor such that the door is moved further in the direction of movement.

19 . The household dishwasher of claim 18 , wherein the control unit is configured to evaluate a polarity or phase sequence of the electrical voltage, said control unit configured to operate the drive motor by taking into consideration the polarity or phase sequence.

20 . The household dishwasher of claim 18 , wherein the control unit is configured to evaluate an amount and/or the frequency of the electrical voltage, and/or an amount of an angle of rotation of the rotor, said control unit configured to operate the drive motor by taking into consideration the amount and/or the frequency of the electrical voltage and/or the amount of the angle of rotation of the rotor.

21 . The household dishwasher of claim 18 , wherein the control unit is configured to determine an angular speed of the rotor at which the rotor rotates due to a movement impulse of the door generated as a result of the manual movement of the door by the operator in the direction of movement, and to predetermine the drive speed of the drive motor as a function of the determined angular speed at which the door is moved further by the drive device in the direction of movement.

22 . The household dishwasher of claim 18 , further comprising a gear mechanism coupling the drive motor to the door such that a rotation of the rotor causes a movement of the door or a movement of the door causes a rotation of the rotor.

23 . The household dishwasher of claim 22 , wherein the gear mechanism is not configured to be self-locking.

24 . The household dishwasher of claim 18 , further comprising a drive cable coupling the drive motor to the door such that a rotation of the rotor causes a movement of the door or a movement of the door causes a rotation of the rotor.

25 . The household dishwasher of claim 24 , further comprising a rotatably mounted roller, said drive cable being in contact with a rotatably mounted roller, said drive motor configured to drive the roller for moving the drive cable such that the door is moved in a form of a pivoting movement as the drive motor is operated.

26 . The household dishwasher of claim 25 , wherein the drive cable is wound around the roller.

27 . The household dishwasher of claim 25 , wherein the roller and the drive cable are configured such that a drive force is transmitted from the roller to the drive cable exclusively via frictional locking.

28 . A method for operating a household dishwasher, said method comprising:
enabling movement of a door of the household dishwasher by an electrical drive device between a closed position, in which the door closes a loading opening of a washing container of the household dishwasher, and an open position, in which the washing container is accessible from outside; and identifying with a control unit a manual movement of the door by an operator in a direction of movement by detecting a characteristic variable of the drive device to cause the door to be moved further in the direction of movement by the drive device.

29 . The method of claim 28 , further comprising:
mechanically coupling a rotor of a permanently excited drive motor of the drive device to the door; inducing an electrical voltage in the drive motor of the drive device by a movement of a rotor of the drive motor as a result of the manual movement of the door by the operator; and moving the door further in the direction of movement, when the control unit detects the electrical voltage as the characteristic variable of the drive device.

30 . The method of claim 29 , further comprising:
evaluating by the control unit an amount and/or the frequency of the electrical voltage and/or an amount of an angle of rotation of the rotor, as the door is manually moved; and operating the drive motor by taking into consideration the amount and/or the frequency of the electrical voltage and/or the amount of the angle of rotation of the rotor.

31 . The method of claim 29 , further comprising:
evaluating by the control unit a polarity or phase sequence of the electrical voltage, and operating the drive motor by taking into consideration the polarity or phase sequence.

Assignees

• Bsh Hausgeraete Gmbh

Inventors

• Pertermann Hans-Holger
• Friedke Aaron
• Rittner Martin

Classifications

• A47L2301/08

  Other manual input · CPC title

• A47L15/4261

  Connections of the door to the casing, e.g. door hinges · CPC title

• A47L2401/26

  Loading door status, e.g. door latch opened or closed state · CPC title

• A47L2501/22

  Loading doors, e.g. door latches, inflatable door seals · CPC title

• E05F15/627 Primary

  operated by flexible elongated pulling elements, e.g. belts, chains or cables (using flexible elongated push-pull mechanisms E05F15/619) · CPC title