EP3212835B1 - Appareil de traîtement de linge avec pompe de drainage - Google Patents

Appareil de traîtement de linge avec pompe de drainage Download PDF

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Publication number
EP3212835B1
EP3212835B1 EP15787924.8A EP15787924A EP3212835B1 EP 3212835 B1 EP3212835 B1 EP 3212835B1 EP 15787924 A EP15787924 A EP 15787924A EP 3212835 B1 EP3212835 B1 EP 3212835B1
Authority
EP
European Patent Office
Prior art keywords
pump
detergent
laundry care
care appliance
drainage
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
EP15787924.8A
Other languages
German (de)
English (en)
Other versions
EP3212835A1 (fr
Inventor
Torsten Böttger
Kevin Hahn
Raymond Römer
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
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Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3212835A1 publication Critical patent/EP3212835A1/fr
Application granted granted Critical
Publication of EP3212835B1 publication Critical patent/EP3212835B1/fr
Active legal-status Critical Current
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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations 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
    • D06F79/00—Accessories for hand irons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/48—Fluid-guiding means, e.g. diffusers adjustable for unidirectional fluid flow in reversible pumps
    • F04D29/486—Fluid-guiding means, e.g. diffusers adjustable for unidirectional fluid flow in reversible pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/50—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow
    • F04D29/506—Fluid-guiding means, e.g. diffusers adjustable for reversing fluid flow especially adapted for liquid 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/44—Current or voltage
    • D06F2103/48—Current or voltage of the motor driving the pump
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating
    • 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 
    • 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 
    • D06F39/20—Arrangements for water recovery

Definitions

  • the present invention relates to a laundry care appliance with a drain pump.
  • laundry care appliances nowadays have a pumping system, through which washing suds can be pumped out of the suds container and then fed back into the suds container.
  • laundry care appliances nowadays also have a pump-out system. Pumps are required for the pump-over system and the pump-out system in order to ensure effective pump-over or pump-out of the wash suds.
  • DE 32 09 542 C1 describes a clockwise and counterclockwise drivable radial centrifugal pump as a circulating pump in a dishwasher.
  • the utility model document CN 201 722 529 U shows a washing machine comprising a pumping system.
  • the object is achieved by a laundry care appliance with a pumping system, the pumping system having a Suds container with an inlet opening and a drain opening, a line which connects the inlet opening and the drain opening, and a drain pump for pumping washing suds through the pump-around system, with a suction connection, with a pressure chamber, which has a pump-over connection and a pump-out connection, and with an impeller , wherein the drain pump is designed to pump the washing lye in a preferred direction of rotation of the impeller through the pump-over connection piece to the tub, and to pump out the washing suds through the pump-out connection piece in a pump-out direction of rotation of the impeller, the pump-out connection piece and the pump-over connection piece being tangential to the pressure chamber connect.
  • the washing suds are pumped out of the pumping system again through the pumping connection through the line to the tub, or the washing suds are pumped out of the laundry care appliance through the pumping out connection by the pumping-out direction of rotation of the impeller becomes.
  • the drain pump thus combines a pump-over function and a pump-out function in one component.
  • Conventional laundry care appliances with a pump-over system normally use drain pumps that are activated in a single phase and with a mains frequency and do not have a preferred direction of rotation and therefore do not have a pump-out function that is dependent on the direction of rotation.
  • the impeller of the suds pump moves in a preferred direction of rotation, the preferred direction of rotation over time, in order to suck in washing suds from the pumping system through the suction nozzle.
  • the sucked-in detergent is delivered to the pressure chamber of the detergent pump at increased pressure.
  • the washing suds are moved in a circular motion in the pressure chamber and can be pumped out of the pressure chamber through the pump-over nozzle, which adjoins the pressure chamber tangentially. It is crucial here that the pump-over connection tangentially adjoins the pressure chamber in order to ensure that the circular movement of the washing suds in the pressure chamber continues tangentially in the pump-over connection in order to pump the washing suds out of the pressure chamber.
  • the impeller of the drain pump moves in a pumping-out direction of rotation, which is opposite to the preferred direction of rotation over time.
  • the sucked-in wash liquor is moved in the pressure chamber in a rotational movement which is opposite to the rotational movement of the wash liquor in the pressure chamber in the preferred direction of rotation of the impeller over time.
  • the washing suds can be pumped out of the pressure chamber in the direction of pumping rotation through the pump-out nozzle, which also adjoins the pressure chamber tangentially.
  • the use of the drain pump with a pump-over and pump-out function enables simplification and cost reduction when used in laundry care devices, since only one motor with a hydraulic arrangement is used.
  • the drain pump can replace existing drain pumps without changing mechanical interfaces or other elements of the pumping system, such as an inlet or outlet hose.
  • a laundry care device is understood to be a device that is used for laundry care, such as a washing machine or a washer-dryer.
  • a laundry care appliance is understood to mean a household laundry care appliance.
  • a laundry care device that is used as part of housekeeping and is used to treat laundry in normal household quantities.
  • the pressure chamber has a pumping area with the pumping connection and a pumping-out area with the pump-out connection.
  • the separation of pump-over area and pump-out area can preferably be improved by using a partition wall between pump-over area and pump-out area.
  • the partition wall creates a physical separation between the pumping area and the pumping-out area, so that in the case of opposite rotational movements of the washing suds in the pressure chamber, the movement of the washing suds in the pressure chamber after the pumping-around area or after the pumping-out area is blocked.
  • a dividing wall is arranged between the pumping-around area and the pumping-out area, the dividing wall having a web for separating the pumping-out area and the pumping-out area.
  • the pump-out connection or pump-over connection is inclined at a first angle, in particular at an angle of less than 30°, relative to the vertical axis of the drain pump, or the suction connection is inclined at a second angle, in particular at an angle of , relative to the vertical axis of the drain pump less than 90° inclined.
  • the vertical axis of the drain pump is arranged perpendicular to the horizontal axis of the drain pump and runs centrally between the pump-out connection and pump-over connection of the drain pump.
  • the horizontal axis of the drain pump runs approximately parallel to the suction port.
  • the pump-out connection piece has a first diameter and the pump-out connection piece has a second diameter, the first diameter being larger than the second diameter.
  • the impeller has a plurality of impeller blades, the impeller blades being curved.
  • the curvature of the impeller blades enables fine-tuning of the impeller blade geometry in order to ensure a particularly advantageous flow movement of the washing liquor in the pressure chamber, in particular to ensure different delivery quantities of washing liquor depending on the direction of rotation of the impeller either through the pump-over connection or to pump through the pump out nozzle.
  • the curved impeller blades can, for example, be designed in such a way that they preferentially convey the washing liquor in the preferred direction of rotation of the impeller to the pump-over connection piece of the pressure chamber conveyed to allow efficient pumping over of the wash liquor in the pumping system.
  • the curved impeller blades can, for example, be designed in such a way that they preferentially transport the washing suds in the pumping-out direction of rotation of the impeller to the pump-out nozzle of the pressure chamber in order to ensure that the washing suds are pumped out effectively from the pump-over system.
  • the laundry care appliance comprises a power acquisition element for acquiring an electrical power value of the drain pump, e.g to determine detected electrical power value of the drain pump, and wherein the controller is designed to control the speed of the impeller depending on the determined flow rate of washing suds.
  • the power detection element can determine a reduction in the flow rate on the basis of a falling detected electrical power value of the drain pump, as a result of which the controller can correspondingly control the speed of the impeller of the drain pump.
  • the power detection element comprises a current sensor for detecting a supply current of the drain pump.
  • the current sensor includes a switching resistor that detects the supply current of the drain pump during a time interval.
  • the supply current of the drain pump depends on the Amount of suds pumped by the suds pump. If the amount of liquid delivered by the pump decreases, there will be a reduction in the flow rate supplied to the pump.
  • the laundry care appliance comprises a flow sensor for detecting a flow rate of washing suds in the circulation pump system and a controller, wherein the controller is designed to compare the flow rate detected by the flow sensor with the flow rate determined by the detected electrical power value of the suds pump , in order to obtain a comparative value, and wherein the controller is designed to control the rotational speed of the impeller as a function of the comparative value obtained.
  • the laundry care appliance has a reservoir for storing washing suds, with the pump-out nozzle being connected to a reservoir via a pump-out line.
  • the drain pump has a first screen or a first nozzle on the pump-out connection piece and/or a second screen or a second nozzle on the pump-out connection piece.
  • the first screen or the first nozzle on the pump-out connection has a third diameter
  • the second screen or the second nozzle on the pump-over connection has a fourth diameter, the third diameter being larger than the fourth diameter .
  • the pump-out connection is connected to a pump-out opening of the laundry care appliance via a pump-out line, the pump-out opening being arranged on an outside of the laundry care appliance at a first height, and the first height being greater than a second height of the tub in the laundry care appliance where the second elevation is the highest point of the pumping system
  • the drain pump has to overcome a pumping-out pressure level during a pumping-out process and a pumping-over pressure level during a pumping-over process, the drain pump being designed to pump out the washing-suds through the pump-over connection piece in a preferred direction of rotation of the impeller over time when there is a pumping-over pressure level to be overcome, and wherein the drain pump is designed to pump out the wash water in a pumping-out direction of rotation of the impeller through the pump-out connector at a pumping-out pressure level to be overcome.
  • the hydraulic design of the suds pump ensures that the washing suds are pumped out during the pumping-out process, or that the washing suds are pumped out during the transfer process.
  • the drain pump is specifically designed, depending on a different pump-out pressure level or pump-over pressure level, either to move the impeller in a pump-out direction of rotation in order to carry out a pump-out process or to move the impeller in a temporal direction To move preferred direction of rotation to perform a pumping operation.
  • the laundry care appliance comprises a washing drum for receiving laundry and a load detection device for detecting the weight of laundry in the Washing drum, wherein the drain pump is designed to control the speed of the impeller depending on the detected weight of the laundry in the washing drum.
  • the weight of the laundry can be determined by the load detection device, such as a device for determining the weight of the laundry in the washing drum.
  • the speed of the impeller can be increased by the suds pump when there is a large amount of laundry in order to achieve effective pumping of the washing suds and effective wetting of the laundry, whereby effective heating of the washing suds in the pumping system can be ensured.
  • the drain pump has a heating element, which is designed to heat the wash water in the drain pump.
  • the laundry care appliance 100 includes a reservoir 101, which is also referred to as a dispensing bowl, and into which detergent or other liquid substances can be filled.
  • the laundry care appliance 100 includes a door 103 for loading the laundry care appliance 100 with laundry.
  • FIG. 2 shows a view of a pumping system 105 in a laundry care appliance 100 with a washing drum 107 for holding laundry, with a suds container 109 for holding washing suds, which includes an inlet opening 111 and a drain opening 113 .
  • the inlet port 111 is connected to the outlet port 113 by a line 115 .
  • Line 115 includes a suds pump 117, which can pump the washing suds during a pumping process either through the drain opening 113 out of the suds container 109 and through the inlet opening 111 back into the suds container 109, or during a pumping-out process, the washing suds through the pump-out line 119 from the pumping system 105 can pump out.
  • a large part of the wash liquor in the pump-over system 105 is circulated through the line 115 so that only a part of the wash suds in the pump-over system 105 is present in the tub 109 .
  • the wash suds in the tub 109 have a pumping level 121 .
  • the washing suds are no longer pumped through the line 115 but are collected in the suds container 109 in order to be available for pumping out, the washing suds having a pumping level 123 in the suds container 109 . Since the entire washing suds are in the suds container 109 before the pumping out process, the pumping out level 123 is greater than the pumping level 121.
  • the suds pump 117 comprises a suction chamber 125 into which the washing suds can be sucked out of the line 115 and a pressure chamber 127 from which the sucked washing suds can be delivered back to the pump-over system 105 at an increased pressure.
  • An impeller 129 is arranged in the drain pump 117, which can be designed, for example, as a propeller and can have one or more impeller blades, and can convey the washing liquor from the suction chamber 125 into the pressure chamber 127 at an increased pressure. In 3 the impeller 129 cannot be shown since it is located inside the drain pump 117.
  • the drain pump 117 also includes a suction nozzle 131 which is arranged on the suction chamber 125 and which is connected to the line 115 of the pump-over system 105 in order to suck in the washing solution.
  • the pressure chamber 127 includes a pump-over connection piece 133 through which the drain pump 117 can convey the washing suds under increased pressure to the line 115 of the pump-over system 105 and to the tub 109 .
  • the pressure chamber 127 also includes a pump-out socket 135 which can be connected to a pump-out line 119 of the laundry care appliance 100 in order to pump out the washing suds from the pump-over system 105 and from the laundry care appliance 100 .
  • FIG. 4 the schematic representation of a drain pump is shown in a side view.
  • the line of sight in 4 is directed toward the pressure chamber 127 with the cover of the pressure chamber 127 removed to show the interior of the pressure chamber 127.
  • FIG. An impeller 129 is arranged in the drain pump 117, which cannot be seen in the chosen illustration, and which is designed to draw washing suds from the suction chamber 125, which is located in the plane of the drawing behind the pressure chamber 127 and in 4 is not shown, with an increased pressure in the pressure chamber 127 to convey.
  • the drain pump 117 is designed to move the impeller 129 in a preferred direction of rotation 145 over time or in a direction of rotation 147 for pumping out.
  • the preferred direction of rotation 145 in terms of time can be counterclockwise, for example.
  • the direction of rotation 147 for pumping out can be clockwise, for example.
  • a suction nozzle 131 is arranged on the suction chamber 125 in order to draw in wash liquor from the circulation system 105 .
  • the suction connection is inclined by about 5° with respect to the horizontal axis 151 of the drain pump 117.
  • the pressure chamber 127 includes a pump-over connection piece 133 through which the drain pump 117 can convey the washing suds under increased pressure to the line 115 of the pump-over system 105 and to the tub 109 .
  • the pressure chamber 127 also includes a pump-out connector 135 which is connected to a pump-out line 119 of the laundry care appliance 100 can be connected in order to pump the washing suds out of the pumping system 105 and out of the laundry care appliance 100 .
  • the pump-out connection 135 and the pump-out connection 133 are inclined by approximately 30° with respect to the vertical axis 149 of the drain pump 117 .
  • the pressure chamber 127 also has a dividing wall 137 with a web 139 which is arranged in the pressure chamber 127 in order to separate a pumped-around region 141 of the pressure chamber 127 from a pumped-down region 143 of the pressure chamber 127 .
  • the pumping area 141 of the pressure chamber 127 is in contact with the pumping connection 133 in order to transport washing liquor from the suction chamber 125 into the pressure chamber 127 while the impeller 129 moves in the preferred direction of rotation 145 over time.
  • the sucked-in wash suds are moved in a circular motion in the preferred direction of rotation 145 in the pressure chamber 127, then conveyed into the pump-around region 141 and can be pumped out of the pressure chamber 127 through the pump-around nozzle 133, which adjoins the pressure chamber 127 tangentially.
  • the dividing wall 137 with the web 139 causes an effective separation between the pumping area 141 and the pumping-out area 143 in order to prevent the washing suds that have been drawn in from being pumped out via the pumping-out area 143 and the pump-out nozzle 135 when the impeller 129 is in the preferred direction of rotation 145 over time can.
  • the drain pump 117 Since during operation of the laundry care appliance 100 the drain pump 117 mainly circulates the washing suds in the pumping system 105 and only pumps the washing suds out of the pumping system 105 after the end of the laundry care program, the drain pump 117 is designed in such a way that the preferred direction of rotation 145 over time is preferred to the direction of rotation 147 for pumping out is.
  • washing liquor is also conveyed from the suction chamber 125 into the pressure chamber 127 . Due to the different pumping directions 147 of the impeller 129, the sucked-in washing suds are moved in a circular motion in the pumping-out direction 147 in the pressure chamber 127, with the pumping-out direction 147 being opposite to the preferred direction of rotation 145 over time. The washing suds are thereby conveyed into the pump-out area 143 and can flow out of the circular pressure chamber 127 through the pump-out nozzle 135, which adjoins the pressure chamber 127 tangentially be pumped out.
  • the partition wall 137 with the web 139 causes an effective separation between the pump-over area 141 and the pump-out area 143 in order to prevent the washing suds that have been drawn in from being able to be pumped out in part via the pump-out area 141 and the pump-out connection piece 133 when the impeller 129 rotates in a pump-out direction 147 .
  • the function of the suds pump 117 is based on different filling levels of the washing suds in the pump-over system 105 in relation to a pump-over process or a pump-out process. Since the washing suds are no longer bound to the laundry in the washing drum 107 before the pumping out process, but are in the suds container 109 or in the pumping system 105, the fill level in the pumping system 105 before the pumping out process is higher, e.g. 80 cm, than during the pumping out process Circulation process, during which a large part of the suds is bound to the laundry.
  • the fine design for the different flow rates during the pumping or pumping process can be optimized by using curved impeller blades of the impeller 129 with an advantageous geometry, or by using pressure-reducing elements, such as diaphragms and nozzles, on the pump-over connection 133 or on the Pump-out nozzle 135, or by a targeted variation of the speed of the impeller 129 depending on the flow conditions or the flow rates of the washing liquor in the pump-over system 105.
  • the height of the positioning of the drainage opening of the laundry care appliance 100 can also be used to realize a pressure difference between the pumping out process and the pumping around process.
  • the prerequisite for implementation is the use of a pump motor that is dependent on the direction of rotation, in order to move the impeller 129 of the drain pump 117 in a preferred direction of rotation 145 over time or in a direction of rotation 147 for pumping out.
  • the drain pump 117 thus achieves an effective separation of the pumping-out process and the pumping-over process depending on the different directions of rotation 145, 147 of the impeller 129 of the pump. Only one common motor has to be used for a pump-out and pump-over system 105 of the laundry care appliance 100, which means that there are no costs, e.g. by dispensing with a further set of cables. Due to the pumping process, there is also no need to seal the tub 109 at the sump, since this function avoids carrying over detergent.
  • Moistening back, or incorrect separation of the flow paths due to a blockage can be detected and thus prevented by monitoring the motor current using the electrical power of the electrical power present at the drain pump 117 .
  • the entire pumping system 105 can be simplified, whereby a space-saving pumping solution is achieved.
  • the drain pump 117 can also be used in laundry care appliances 100 with conventional pump-over systems 105 without having to change mechanical interfaces, or the conventionally used inlet hose of the pump-over system 105 or the pump-out hose of the pump-out system can be used.
  • the pump-over connection piece 133 and the pump-out connection piece 135 the pump-over or pump-out can be implemented without a specific control of the drain pump 117 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (13)

  1. Appareil d'entretien du linge (100) comprenant un système de transvasement par pompage (105), dans lequel le système de transvasement (105) comprend un compartiment à lessive (109) présentant un orifice d'entrée (111) et un orifice de sortie (113), un conduit (115), lequel raccorde l'orifice d'entrée (111) et l'orifice de sortie (113), et une pompe à lessive (117) pour le pompage de la lessive de linge par le système de transvasement (105), avec une buse d'aspiration (131), comprenant une chambre sous pression (127), laquelle comprend une buse de transvasement par pompage (133) et une buse de vidange par pompage (135), et comprenant une roue mobile (129),
    la pompe à lessive (117) étant réalisée pour pomper au compartiment à lessive (109) la lessive de linge dans un sens prédominant de rotation (145) dans le temps de la roue mobile (129) au moyen de la buse de transvasement (133), et vidanger la lessive de linge dans un sens rotatif de vidange (147) de la roue mobile (129) au moyen de la buse de vidange (135),
    la buse de vidange (135) et la buse de transvasement (133) raccordant tangentiellement la chambre sous pression (127),
    la buse de vidange (135) ou la buse de transvasement (133) étant inclinée par rapport à l'axe perpendiculaire (149) de la pompe à lessive (117) à un premier angle, en particulier à un angle de moins de 30°, ou la buse d'aspiration (131) étant inclinée par rapport à l'axe perpendiculaire (149) de la pompe à lessive (117) à un deuxième angle, en particulier à un angle de moins de 90°, l'axe perpendiculaire (149) de la pompe à lessive (117) étant agencé à la perpendiculaire de l'axe horizontal (151) de la pompe à lessive (117) et passant au centre entre la buse de vidange (135) et la buse de transvasement (133) de la pompe à lessive (117), l'axe horizontal (151) de la pompe à lessive (117) passant à peu près en parallèle à la buse d'aspiration (131),
    l'appareil d'entretien du linge (100) comprenant un moteur de pompage dépendant du sens de rotation pour déplacer la roue mobile (129) de la pompe à lessive (117) dans le sens de rotation prédominant dans le temps (145) ou dans le sens de rotation de vidange (147), caractérisé en ce que la pompe à lessive (117) comprend un élément chauffant, lequel est réalisé pour chauffer la lessive du linge dans la pompe à lessive (117).
  2. Appareil d'entretien du linge (100) selon la revendication 1, caractérisé en ce que la chambre sous pression (127) comprend une zone de transvasement (141) comprenant la buse de transvasement (133) et une zone de vidange (143) comprenant la buse de vidange (135).
  3. Appareil d'entretien du linge (100) selon la revendication 2, caractérisé en ce qu'entre la zone de transvasement (141) et la zone de vidange (143) se trouve une paroi de séparation (137), la paroi de séparation (137) comprenant un montant (139) qui sépare la zone de vidange (143) et la zone de transvasement (141).
  4. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que la buse de vidange (135) a un premier diamètre et en ce que la buse de transvasement (133) a un deuxième diamètre, le premier diamètre étant plus grand que le deuxième diamètre.
  5. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que la roue mobile (129) comprend une pluralité de pales, les pales étant recourbées.
  6. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un élément de détection de puissance qui détecte la valeur de puissance électrique de la pompe à lessive (117), en ce que
    l'appareil d'entretien du linge (100) comprend une commande, la commande étant réalisée pour déterminer une vitesse de courant de la lessive du linge dans le conduit (115) en fonction de la valeur de puissance électrique détectée de la pompe à lessive (117), et en ce que
    la commande est réalisée pour commander le régime de la roue mobile (129) en fonction de la vitesse de courant déterminée de la lessive du linge.
  7. Appareil d'entretien du linge (100) selon la revendication 6, caractérisé en ce que l'élément de détection de la puissance comprend un détecteur de courant qui détecte le courant d'alimentation de la pompe à lessive (117).
  8. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un récipient de stockage qui stocke la lessive de lavage, la buse de vidange (135) étant raccordée par un conduit de vidange (119) au récipient de stockage.
  9. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que la pompe à lessive (117) comprend, sur la buse de vidange (135), un premier bandeau ou un premier gicleur, et/ou sur la buse de transvasement (133), un deuxième bandeau ou un deuxième gicleur.
  10. Appareil d'entretien du linge (100) selon la revendication 9, caractérisé en ce que le premier bandeau ou le premier gicleur a, sur la buse de vidange (135), un troisième diamètre, en ce que le deuxième bandeau ou le deuxième gicleur a, sur la buse de transvasement (133), un quatrième diamètre, le troisième diamètre étant plus grand que le quatrième diamètre.
  11. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que la buse de vidange (135) est raccordée à un orifice de vidange de l'appareil d'entretien du linge (100) par un conduit de vidange (119), l'orifice de vidange se trouvant sur un côté extérieur de l'appareil d'entretien du linge (100) à une première hauteur, et la première hauteur étant plus grande qu'une deuxième hauteur du compartiment à lessive (109) dans l'appareil d'entretien du linge (100), la deuxième hauteur étant le point le plus haut du système de transvasement (105).
  12. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que la pompe à lessive (117), pendant un processus de vidange, doit vaincre un niveau de pression de vidange, et pendant un processus de transvasement, un niveau de pression de transvasement, et en ce que la pompe à lessive (117) est réalisée, la pompe à lessive (117) étant réalisée, en cas de niveau de pression de transvasement à vaincre, pour vidanger par pompage la lessive de linge dans un sens prédominant de rotation (145) dans le temps de la roue mobile (129) au moyen de la buse de transvasement (133), et la pompe à lessive (117) étant réalisée pour, en cas de niveau de pression de vidange à vaincre, vidanger par pompage, la lessive de lavage dans un sens de rotation de vidange (147) de la roue mobile (129) au moyen de la buse de vidange (135).
  13. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un tambour de lavage (107) pour le logement du linge et un dispositif de détection de charge qui détecte le poids du linge dans le tambour du linge (107) et en ce que la pompe à lessive (117) est réalisée pour commander le régime de la roue mobile (129) en fonction du poids détecté du linge dans le tambour de lavage (107).
EP15787924.8A 2014-10-29 2015-10-21 Appareil de traîtement de linge avec pompe de drainage Active EP3212835B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014222050.5A DE102014222050B3 (de) 2014-10-29 2014-10-29 Wäschepflegegerät mit einer Laugenpumpe
PCT/EP2015/074330 WO2016066485A1 (fr) 2014-10-29 2015-10-21 Appareil d'entretien du linge comprenant une pompe à lessive

Publications (2)

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EP3212835A1 EP3212835A1 (fr) 2017-09-06
EP3212835B1 true EP3212835B1 (fr) 2022-08-24

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EP15787924.8A Active EP3212835B1 (fr) 2014-10-29 2015-10-21 Appareil de traîtement de linge avec pompe de drainage

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EP (1) EP3212835B1 (fr)
CN (1) CN107110177A (fr)
DE (1) DE102014222050B3 (fr)
PL (1) PL3212835T3 (fr)
RU (1) RU2675461C2 (fr)
WO (1) WO2016066485A1 (fr)

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DE102016202006A1 (de) * 2016-02-10 2017-08-10 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Laugenpumpe
KR102555267B1 (ko) * 2016-06-13 2023-07-14 엘지전자 주식회사 의류처리장치용 배수펌프
KR101816583B1 (ko) * 2016-09-13 2018-01-09 엘지전자 주식회사 배수펌프
CN106704264B (zh) * 2017-01-12 2023-08-25 常州雷利电机科技有限公司 泵以及具有所述泵的排水循环系统和家用电器
KR102554903B1 (ko) 2018-04-03 2023-07-11 엘지전자 주식회사 세탁물 처리장치
DE102018206364A1 (de) * 2018-04-25 2019-11-21 BSH Hausgeräte GmbH Haushaltsgerät zur Pflege von Wäschestücken und Verfahren zum Betreiben eines Haushaltsgeräts
KR102173188B1 (ko) 2019-05-14 2020-11-03 엘지전자 주식회사 배수펌프 및 그것을 포함하는 의류처리장치
DE102021123348A1 (de) 2021-09-09 2023-03-09 Miele & Cie. Kg Flüssigkeitsweiche für eine Waschmaschine, Flüssigkeitssystem, Waschmaschine und Verfahren zum Betrieb einer Waschmaschine

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US3836001A (en) * 1972-07-19 1974-09-17 Westinghouse Electric Corp Pump with self-cleaning lint filter
EP2221485A2 (fr) * 2009-01-26 2010-08-25 Coprecitec, S.L. Pompe de circulation de fluide adaptée à un appareil électroménager
US20120114473A1 (en) * 2010-11-10 2012-05-10 Badafem Awade Centrifugal pump

Also Published As

Publication number Publication date
RU2675461C2 (ru) 2018-12-19
RU2017117602A (ru) 2018-11-29
RU2017117602A3 (fr) 2018-11-29
CN107110177A (zh) 2017-08-29
DE102014222050B3 (de) 2016-03-31
EP3212835A1 (fr) 2017-09-06
WO2016066485A1 (fr) 2016-05-06
PL3212835T3 (pl) 2022-12-05

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