Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F33/00—Control of operations performed in washing machines or washer-dryers 
  • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
  • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/12—Casings; Tubs
  • D06F39/14—Doors or covers; Securing means therefor
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
  • D06F2103/40—Opening or locking status of doors

Definitions

• the present invention relates to a household appliance with a return element.
• conventional household appliances such as e.g. Laundry care appliances
• the trapped garments may be damaged or liquor may leak between the closed door and the body, and may penetrate into the interior of the household appliance.
• DE 10 2009 024 503 B3 discloses a closure arrangement for a washing machine, which comprises a locking element arranged on the inside of the door, which interacts with a closure element on the housing side.
• DE 10 2009 005 781 B3 discloses a closure arrangement for a door of a washing machine, wherein a locking element operable from the outside of the door is arranged on the inside of the door for locking the door.
• the object according to the invention is achieved by a domestic appliance having a main body, a door for closing the main body, a door lock for locking the appliance door in the closed state, wherein the appliance door exerts a restoring force on the door lock in the closed state, a signal output device for outputting a signal and a controller for controlling the signal output device, wherein the door lock has a reset element for detecting the restoring force, and wherein the controller is configured to activate the signal output device for outputting a signal when the detected restoring force exceeds a restoring force threshold ,
• the technical advantage is achieved that the exceeding of the restoring force threshold value can be detected by the restoring force with the controller.
• the controller in this case activates the signal output means to deliver a signal, e.g. Warning sound to alert the user of the household appliance to a possible fault in the locking of the appliance door by the door lock.
• laundry items may be inadvertently clamped when closing the appliance door of the household appliance between the closed door and the body accidentally.
• the trapped garments could possibly be damaged, or wash liquor may optionally leak between the closed door and the body, or damage to a cuff between the door and the body may occur.
• the aforementioned disadvantages can be prevented if the wash cycle is not even started, or interrupted or aborted by the delivery of a signal by the signal output device.
• the user of the laundry care device can be caused, for example, to reopen before opening a washing cycle, the appliance door to remove the possibly jammed laundry items to place them again completely in the washing drum and then the appliance door close again to allow an effective door lock.
• a household appliance is a device that is used for household management. This can be a large household appliance, such as a Washing machine, a tumble dryer, a dishwasher. But this can also be a small household appliance, such as a water heater, a coffee machine, a food processor or a carpet cleaning machine.
• the restoring element comprises a force sensor for detecting the restoring force, in particular an electronic force sensor.
• the technical advantage is achieved that an effective detection of the restoring force is ensured by the force sensor, in particular electronic force sensor.
• the force sensor in particular electronic force sensor.
• the elastic deformation of the component of the force sensor can be converted into the change of a voltage of an electric circuit, wherein the electrical signal thereby obtained can be detected by the controller to obtain the detected restoring force.
• the restoring element comprises a mechanical switch, wherein the mechanical switch comprises an elastically deformable component for detecting the restoring force and a switching element for switching an electrical control circuit of the household appliance.
• the mechanical switch comprises an elastically deformable component, in particular a spring, wherein the elastically deformable component is deformable in dependence on the voltage applied to the component restoring force, whereby on the basis of the extent of deformation of the component, the restoring force can be detected.
• the mechanical switch further comprises a switching element, which is in contact with an electrical control circuit of the household appliance, and is designed to switch in dependence on the deformation of the component, and thus in dependence on the restoring force of the electrical control circuit.
• the switching element is designed to switch a switch of the electric control circuit as a function of the restoring force detected by the elastically deformable component.
• the technical advantage is achieved that a switch, in particular rotary or toggle switch, the electrical control circuit can be switched particularly effective by the switching element of the mechanical switch.
• the deformation of the elastically deformable member e.g. the spring, whereby the switching element of the mechanical switch is moved relative to the switch. Due to the direct contact between the switching element and the switch, the switching element can switch the switch in dependence on the deformation of the component.
• the mechanical switch is designed to switch the electrical control circuit when the restoring force exceeds the restoring threshold value
• the controller is designed to activate the signal output device for outputting a signal when switching the electrical control circuit.
• the technical advantage is achieved that by the switching of the electric control circuit by the mechanical switch, when the restoring force exceeds the restoring force threshold, the controller can detect from the switching of the electric control circuit when the signal output device has to be activated.
• the door lock comprises a movement element which is designed to move the reset element relative to the appliance door when the appliance door is closed, in order to increase the restoring force.
• the restoring force is increased by the displacement of the return element relative to the door.
• the restoring element is moved away from the appliance door in the direction of the interior of the household appliance.
• the movement element comprises a motor element, in particular an electric motor element.
• the technical advantage is achieved that by the motor element, in particular electric motor element, such as. Electric motor, an effective displacement of the return element relative to the door is made possible.
• the restoring element is arranged along a vertical axis of the appliance door, wherein the vertical axis extends from an underside of the appliance door to an upper side of the appliance door.
• the door lock comprises a further restoring element for detecting a restoring torque about a transverse axis of the appliance door, wherein the further return element is arranged along the transverse axis of the appliance door, wherein the transverse axis from one longitudinal side of the appliance door to another longitudinal side of the appliance door and wherein the controller is configured to activate the signal output device to output a signal when the detected return torque exceeds a return torque threshold.
• the technical advantage is achieved that a particularly effective distinction between a trapped garment and a high load of the washing drum, which also acts on the door, is made possible by measuring the restoring torque about the transverse axis of the door.
• a large-volume laundry load acts more along the vertical axis of the door extending restoring force on the return element, whereas at a clamped laundry additionally a restoring torque occurs about the transverse axis of the door.
• the domestic appliance has a load detection device for detecting a weight of laundry in a washing drum of the household appliance, wherein the controller is configured to change the restoring force threshold or the restoring torque threshold depending on the detected weight of the laundry in the laundry drum.
• the controller is designed to interrupt a program of the household appliance or to prevent the start of the program when the restoring force exceeds a restoring force threshold.
• the controller interrupts a program of the household appliance or prevents the start of the program in a not effectively locked door to ensure that no damage to the household appliance, for example, by leaking liquid occurs.
• the door lock comprises a closure hook which is designed to engage in a receiving opening on the appliance door in order to lock the appliance door to the basic body.
• the household appliance comprises a washing drum for receiving laundry, and the return element is designed to detect an increased restoring force when laundry is clamped with the door closed between the door and the base body.
• the technical advantage is achieved that is ensured by detecting an increased restoring force by the restoring element that the trapping of laundry between the door and the body can be detected by the controller effectively to activate the signal output device for delivering a signal.
• the signal output device is designed to emit an optical, acoustic or electrical signal.
• An optical signal may include activating a warning light or a warning of a display element of the household appliance.
• An acoustic signal may include a warning sound.
• An electrical signal may include a signal which is e.g. is passed to the control of the household appliance, e.g. to change the course of a program of the household appliance.
• the object is achieved by a method for activating a signal output device in a household appliance, the household appliance a base body, a door to close the body, a door lock for locking the door in the closed state, wherein the door in the closed state applies a restoring force to the door lock, a signal output device for outputting a signal and a control for controlling the signal output device, the method comprising detecting the
• a signal output device for outputting a signal by the controller when the restoring force exceeds a restoring force threshold comprises.
• FIG. 1 is a schematic view of a laundry care device
• FIG. 2 is a schematic view of a door lock according to an embodiment
• FIG. 3 shows a schematic view of a door lock according to a further embodiment
• 4 shows a schematic representation of restoring forces occurring in a door lock
• FIG. 5 shows a sequence of a method for the care of laundry in a laundry care appliance.
• Fig. 1 shows a schematic view of a laundry care device, as an example of a general household appliance 100, such as a washing machine.
• the laundry care device 100 with a main body 101 comprises an induction bowl 103, into which the laundry care substance, such as, for example, detergent, can be filled.
• the laundry care device 100 comprises a device door 105 for closing the main body 101, whereby the loading of the laundry care device 100 with laundry is made possible.
• the appliance door 105 has a bottom 107 and a top 109, wherein a vertical axis 1 1 1 extends from the bottom 107 to the top 109.
• the appliance door 105 also has a first longitudinal side 1 13 and a further longitudinal side 1 15, wherein a transverse axis 1 17 extends from the first longitudinal side 1 13 to the further longitudinal side 15 1.
• the laundry care appliance 100 further comprises a controller 1 19 for controlling a signal delivery device 121 of the laundry care appliance, and comprises a door lock (not shown in FIG. 1) for locking the appliance door 105 in the closed state.
• the household appliance 100 comprises a door lock 123, which is arranged on the appliance door 105 of the household appliance 100 in order to lock the appliance door 105.
• the door lock 123 comprises a locking hook 125 which is designed to engage in a receiving opening 127 of a projection 129 of the appliance door 105 in order to lock the appliance door 105 to the main body 101.
• the door lock 123 further includes a return element 131 for detecting the restoring force 133, wherein the restoring force 133 is exerted by the closed door 105 on the door lock door 123, in particular on the return element 131.
• the restoring element 131 comprises a force sensor for detecting the restoring force 133, in particular an electronic force sensor.
• a controller 1 19 of the household appliance 100 activates a signal output device 121 when the detected restoring force 133 exceeds a restoring force threshold value.
• the controller 1 19 and the signal output device 121 are not shown in Fig. 2.
• an increased restoring force 133 of approximately 19 N against a restoring force 133 of approximately 12 N in the case of a properly closed appliance door 105 can be determined.
• 3 shows a schematic view of a door lock according to a further embodiment.
• the door lock 123 comprises a locking hook 125 which is designed to engage in a receiving opening 127 of a projection 129 of the appliance door 105 in order to lock the appliance door 105 to the main body 101.
• the restoring element 131 of the door lock 123 comprises a mechanical switch which has an elastically deformable component 135, in particular a spring, for detecting the restoring force 133 and a switching element 137 for switching a switch 139, in particular a rotary or toggle switch, of an electrical control circuit 141 of the domestic appliance 100 includes.
• the electric control circuit 141 at a reset force 133 lying above the restoring force threshold value can be interrupted by the restoring element 131, as a result of which the control unit 19, not shown in FIG. 3, activates the signal output device 121, not shown in FIG. 3, for emitting a signal.
• the user of the laundry care device 100 receives the instruction to check the locking of the appliance door 105.
• FIG. 4 shows a schematic representation of occurring restoring forces in a door lock.
• FIG. 4 shows a temporal representation of restoring forces 133 in Newton, which are plotted along the ordinate axis 143 as a function of time, which is indicated along the abscissa axis 145.
• the restoring forces 133 shown in FIG. 4 are determined with a return element 131 according to FIG. 2 or FIG. 3 and are caused by various types of items of laundry which are clamped between the main body 101 and the appliance door 105.
• the first curve 147 shows the course of the restoring force 133 with an open appliance door 105.
• the second curve 149 shows the course of the restoring force 133 with a closed appliance door 105 without a trapped laundry item.
• the third curve 151 shows the course of the restoring force 133 with a closed appliance door 105 with a clamped sleeve of a laundry item.
• the fourth curve 153 shows the course of the restoring force 133 with a closed appliance door 105 with a pinched corner of a towel.
• the fifth curve 155 shows the course of the restoring force 133 with a closed door 105 with a towel, which is clamped in one ply.
• the sixth curve 157 shows the course of the restoring force 133 with a closed appliance door 105 with a towel, which is clamped in two layers.
• the door lock 123 may comprise a movement element, eg an electric motor, which is formed with the appliance door 105 closed, the restoring element 131 relative to the appliance door 105 to move. As a result, the appliance door 105 is moved closer to the main body 101, and the restoring force 133 is increased. As a result, the force levels in different types of trapped laundry items are further separated and the controller 19 can more likely detect a trapped laundry item.
• restoring force 133 further extending along a transverse axis 1 17 of the door 105 further restoring force, or about the transverse axis 1 17 occurring restoring moment can be detected.
• an increased return force 133, or restoring torque can be distinguished by a trapped laundry item and an increased return force 133 by a high load in the washing drum.
• the force level of the return force 133 can be varied over two possibilities. On the one hand, a trapped laundry item between the main body 101 and the appliance door 105 can lead to higher restoring forces 133 in the door lock 123.
• a large-volume drum load exert an axial force extending in the longitudinal direction of the door 105 on the door 105 and thus cause a likewise increased restoring force 133 in the door lock 123.
• these two cases can be distinguished.
• a trapped laundry item always acts a restoring moment about the transverse axis 1 17, wherein reinforced at a large volume laundry load extending along the vertical axis 1 1 1 of the door 105 restoring force 133 acts on the door lock 123.
• the detection of the restoring force 133 within the door lock 123 can be coupled with a load detection.
• trapped types of laundry at low loads easier and safer detected by the controller 1 19.
• a small amount of laundry load can not exert any restoring force 133 along the vertical axis 1 1 1 of the appliance door 105, so that in this case an exceeding of the permissible restoring force 133 is necessarily correlated with a trapped laundry item.
• FIG. 5 shows a sequence of a method 200 for activating a signal dispenser 121 in a domestic appliance 100, which is described according to FIG.
• the method comprises, as a first method step, the detection 201 of a restoring force 133 by the restoring element 131.
• the method comprises, as a second method step, the activation 203 of the signal output device 121 for outputting a signal by the controller 1 19 in a second time period adjoining the first time segment when the restoring force 133 exceeds a restoring force threshold value.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
• Control Of Washing Machine And Dryer (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=57136911

Family Applications (1)

Country Status (5)

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Citations (4)

Family Cites Families (6)

• 2015
  • 2015-12-09 DE DE102015224661.2A patent/DE102015224661B3/de active Active
• 2016
  • 2016-10-17 RU RU2018120339A patent/RU2682308C1/ru active
  • 2016-10-17 EP EP16781820.2A patent/EP3387179A1/de not_active Withdrawn
  • 2016-10-17 WO PCT/EP2016/074853 patent/WO2017097476A1/de active Application Filing
  • 2016-10-17 CN CN201680071833.4A patent/CN108368666B/zh active Active

Patent Citations (4)

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