EP2458061B1 - Trommelwaschmaschine - Google Patents

Trommelwaschmaschine Download PDF

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Publication number
EP2458061B1
EP2458061B1 EP11188720.4A EP11188720A EP2458061B1 EP 2458061 B1 EP2458061 B1 EP 2458061B1 EP 11188720 A EP11188720 A EP 11188720A EP 2458061 B1 EP2458061 B1 EP 2458061B1
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EP
European Patent Office
Prior art keywords
bubble
drum
air duct
air
washing machine
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.)
Not-in-force
Application number
EP11188720.4A
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English (en)
French (fr)
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EP2458061A1 (de
Inventor
Katsuya Wakita
Toshihiko Yasui
Tadashi Asami
Tomoyuki Kikukawa
Wataru Uchiyama
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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
Priority claimed from JP2010260861A external-priority patent/JP5598283B2/ja
Priority claimed from JP2010260860A external-priority patent/JP2012110461A/ja
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2458061A1 publication Critical patent/EP2458061A1/de
Application granted granted Critical
Publication of EP2458061B1 publication Critical patent/EP2458061B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 
    • D06F39/06—Arrangements for preventing or destroying scum
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements

Definitions

  • the present invention relates to a drum-type washing machine for washing and drying laundry.
  • a conventional drum-type washing machine with a drying function has a drying device which communicates with an inner part of a drum for sending air into the drum accommodating laundry.
  • the drying device generally includes a dehumidifying portion for dehumidifying moist air carrying out dehumidification in contact with the laundry in the drum, a heating portion for heating the cooled and dehumidified air, a blower for sending the heated air into the drum, and an air duct for circulating the air in the drum.
  • the drum-type washing machine generates a bubble when the drum is rotated in a state in which washing water having a detergent dissolved therein is stored in a water tub at a washing step.
  • a user puts the detergent in a proper quantity or more for a degree of dirt or the case in which a rotating speed of the drum is high, a large quantity of bubbles are generated.
  • the bubble enters through a blowing port for sending air into the drum, thereby causing a defect on a drying device having an electric component such as a fan motor. Therefore, it is demanded to prevent the entrance of the bubble into the drying device.
  • Patent Document 1 discloses a drum-type washing machine for stopping a water supply and changing a time required for stirring or reducing a rotating speed of a drum to prevent an increase in a bubble, thereby preventing an entrance of the bubble into an air duct when detecting the generation of the bubble by turning on an electrode.
  • Patent Document 2 discloses a drum-type washing machine provided with a first conductivity sensor for detecting a concentration of a detergent and a second conductivity sensor for detecting a bubble entering an air duct, for example. If the concentration of the detergent is high, it is reduced through a water supply and drainage to prevent foaming. In the case in which the entrance of the bubble into the air duct is detected, furthermore, a rotation of a drum is stopped to prevent the entrance of the bubble into a blasting mechanism provided in the air duct.
  • Patent Document 3 Unexamined Japanese Patent Publication No. 2008-73126
  • Fig. 5 is a schematic structure view of the conventional drum-type washing machine.
  • the drum-type washing machine includes heater unit 60, draft air duct 55 for circulating air in drum 51, and foaming detecting sensor 56 provided in an upper part at a back side in water tub 53.
  • Heater unit 60 has heater 61 for heating air and blasting fan 59 for sending
  • Patent Document 4 a drum-type washing machine for driving an air blower to prevent an entrance of a bubble into an air duct at a washing step is disclosed in Unexamined Japanese Patent Publication No. 2008-6063 (hereinafter referred to as "Patent Document 4"), for example.
  • a duct for a drying unit is large-sized and an air blower is therefore provided in a lower part, for example. Consequently, a bubble entering an air duct and a liquefied bubble falls along an inside wall of an air duct by gravity. For this reason, the falling bubble is sent and returned to a water tub by means of the air blower. Therefore, efficiency is poor.
  • a drum-type washing machine includes a housing, a water tub supported in the housing, a drum provided rotatably in the water tub, a motor for rotating and driving the drum, an air duct having a sucking port and a blowing port which introduce air into the drum, a blower provided in the air duct for sending the air into the drum, a bubble detecting portion for detecting a bubble entering the air duct, and a control portion for controlling at least one of a washing step of washing laundry with a low speed rotation in which the laundry is subjected to beat washing in the drum and a high speed rotation in which the laundry sticks to an inner peripheral surface of the drum, a rinsing step and a dewatering step, and at the washing step, the control portion operates the bubble detecting portion, operates the blower to send air to the blowing port from above the blowing port when the bubble detecting portion detects the entrance of the bubble, and causes the bubble to flow from the blowing port toward the water tub side.
  • Fig. 1 is a sectional view showing a drum-type washing machine according to a first exemplary embodiment of the present invention.
  • Fig. 2 is a perspective view showing a main part of an air duct in the drum-type washing machine.
  • Fig. 3 is a time chart showing an operation of a washing step in the drum-type washing machine.
  • an arrow a indicates a direction in which air flows and an arrow b indicates a direction in which a bubble entering air duct 10 flows.
  • the drum-type washing machine includes at least housing 1, water tab 3, drum 4, motor 9, air duct 10, blasting fan 13 to be a blower, bubble detecting portion 21, and control portion 25.
  • Water tank 3 is swingably supported into housing 1 by means of damper 2 or the like.
  • Cylindrical bottomed drum 4 is rotatably provided in water tub 3.
  • Drum 4 has rotating shaft 5 which is downward inclined from an opened front side toward a back side to be a bottomed portion (for example, approximately 10 degrees).
  • Openable door 24 is provided on an inclined surface at the front side of housing 1 opposite to opening portion 8 of drum 4.
  • Door 24 serves to put laundry A in/out of drum 4.
  • a plurality of baffles 6 and a large number of water passing holes 7 are provided on an inner peripheral surface of drum 4.
  • Baffles 6 are protruded inward in a direction of rotating shaft 5.
  • Water passing holes 7 communicate with an inner part of water tub 3.
  • Washing water is supplied into water tab 3 by means of a water supply valve (not shown) to be a water supply portion for supplying the washing water into water tub 3, and the washing water supplied into water tub 3 is supplied from water passing hole 7 into drum 4.
  • the washing water in water tub 3 is discharged to an outside of the washing machine via drainage passage 23 by opening drainage valve 22 provided below drum 4 after washing laundry A.
  • Motor 9 for rotating and driving drum 4 is attached to a rear surface of water tub 3.
  • Motor 9 is constituted by a brushless DC motor, for example, and is rotated and driven with a rotating speed varied freely by an inverter control.
  • Heat pump device 17 is provided above water tub 3.
  • Heat pump device 17 is constituted by compressor 18, condenser 16, expansion portion 19 and evaporator 15, and conduit 20 and heat pump device 17 are coupled to each other in order to circulate a refrigerant.
  • Compressor 18 compresses the refrigerant.
  • Condenser 16 is a heating portion for radiating heat of the compressed refrigerant having a high temperature and a high pressure, thereby heating passing air.
  • Expansion portion 19 is constituted by a capillary tube or the like, for example, and reduces a pressure of the refrigerant having a high pressure.
  • Evaporator 15 serves as a dehumidifying portion in which the refrigerant having the pressure reduced dehumidifies air drawing heat from surroundings and passing.
  • Air duct 10 for introducing the air from the rear surface of water tub 3 into drum 4 is provided to reach the rear surface of water tub 3 from above water tub 3.
  • Air duct 10 has sucking port 12 provided in front of an upper surface of water tub 3 and blowing port 11 provided on the rear surface of water tab 3, and sucking port 12 is disposed above blowing port 11.
  • the air in water tub 3 and drum 4 is supplied from sucking port 12 of water tub 3 to air duct 10, and is blown toward blowing port 11 from above blowing port 11 provided on an outlet side of air duct 10 and is thus supplied into water tub 3 and drum 4.
  • air duct 10 includes evaporator 15 and condenser 16 in heat pump device 17, blasting fan 13 to be driven by fan motor 14, and bubble detecting portion 21.
  • Evaporator 15, condenser 16 and blasting fan 13 are provided sequentially from sucking port 12 along an air flow above water tub 3.
  • the air sent by blasting fan 13 is cooled and dehumidified in evaporator 15 of heat pump device 17 and is heated in condenser 16. Then, the air heated in the condenser 16 is sent by blasting fan 13 so as to be blown down from above blowing port 11 provided on the rear surface of water tub 3 through air duct 10 which is downward extended toward blowing port 11. Consequently, the air circulates into water tub 3 and drum 4.
  • the air which draws moisture in contact with laundry A in drum 4 and thus becomes moist returns from sucking port 12 to air duct 10, and flows from a forward part toward a rear part above water tab 3 and thus circulates.
  • control portion 25 provided in housing 1 drives motor 9, compressor 18 of heat pump device 17, fan motor 14 to be a blower and the like, and successively controls each of washing, rinsing, dewatering and drying steps.
  • Control portion 25 includes a signal processing portion for processing a bubble detection signal output from bubble detecting portion 21 which will be described below in detail.
  • a bubble detecting portion 21 according to the present invention will be described below with reference to Fig. 2 .
  • bubble detecting portion 21 is constituted by at least one pair of electrodes provided close to each other at predetermined interval K on an inner peripheral surface of air duct 10 opposite to each other in a perpendicular direction to an axial direction of air duct 10, and is formed to take a shape of a plate or a needle.
  • Bubble detecting portion 21 is provided in the vicinity of blowing port 11 of air duct 10 and detects a bubble entering air duct 10. When the bubble entering air duct 10 comes in contact with the electrodes, the electrodes are conducted to each other so that a current flows to detect the bubble.
  • the electrodes may be provided vertically or transversely on a substrate so as to be separated hollowly in air duct 10 and placed in close positions.
  • bubble detecting portion 21 may detect a bubble according to a quantity of light transmission other than an electrical conduction.
  • door 24 provided openably on the front surface side of housing 1 is opened to put laundry A into drum 4 through opening portion 8.
  • a power switch (not shown) of operating portion 26 provided in a front part of an upper surface of housing 1 is turned ON.
  • a start switch (not shown) is manipulated to start an operation, a quantity of a cloth in laundry A which is put in is detected by cloth quantity detecting portion 27.
  • washing is executed in order of a washing step, a rinsing step and a dewatering step. Based on a time chart of Fig. 3 , an operation of the washing step will be described below in detail.
  • the washing step is started subsequently to the decision of the quantity of the cloth in laundry A which is put in.
  • control portion 25 drives motor 9 and rotates drum 4 at a low speed. Consequently, laundry A is lifted up in a rotating direction of drum 4 by means of baffle 6 provided in drum 4 and falls from an upper part in drum 4 by gravity.
  • the rotating speed of drum 4 is set to be 30 r/min to 50 r/min, for example, and a mechanical force such as a shock in the fall is effectively applied to laundry A to carry out washing.
  • the rotating speed of drum 4 also depends on the quantity of laundry A, it is preferably 40 r/min.
  • the rotating speed of drum 4 in the high speed rotation is set to be 150 r/min to 300 r/min, for example, and washing water contained in laundry A is forcedly discharged by a centrifugal force. It is preferable that the rotating speed of drum 4 should be 200 r/min.
  • the high speed rotation is executed at least once at the washing step, it may be executed at plural times. While a time required for the high speed rotation is set to be shorter than a time required for the low speed rotation, the low speed rotation and the high speed rotation are repetitively carried out. Consequently, drum 4 is rotated at a high speed to remove the washing water between fibers of laundry A by a centrifugal force and to continuously substitute the washing water between the fibers. Thus, a washing effect can be enhanced.
  • the washing water having a detergent dissolved therein is stored in a bottom part of water tub 3.
  • the rotating speed of drum 4 is set to be 200 r/min, for example, and drum 4 is thus rotated at a high speed, therefore, the washing water is stirred so that a bubble is generated.
  • control portion 25 rotates drum 4 at a high speed, and at the same time, turns ON bubble detecting portion 21 to bring a state in which the bubble entering air duct 10 can be detected.
  • blasting fan 13 is operated. Then, the air is sent to be blown down toward blowing port 11 from above blowing port 11 so that the bubble entering air duct 10 is caused to flow out of blowing port 11 toward water tub 3 side.
  • bubble detecting portion 21 makes a transition from the high speed rotation (for example, 200 r/min) to the low speed rotation (for example, 40 r/min) over drum 4 to turn OFF a power supply of bubble detecting portion 21 as shown in Fig. 3 .
  • blasting fan 13 is stopped after predetermined time t1 passes since the transition from the high speed rotation to the low speed rotation in drum 4. Consequently, bubble detecting portion 21 is turned ON to bring a state in which the entrance of the bubble can be detected only in the high speed rotation of drum 4 in which the generation of the bubble is increased at the washing step.
  • power consumption is lessened as compared with the case in which bubble detecting portion 21 is usually turned ON, and furthermore, the bubble in air duct 10 is caused to flow toward water tub 3 side more reliably, thereby preventing the entrance of the bubble into heat pump device 17 or the like.
  • control portion 25 rotates drum 4 at a high speed, and at the same time, turns ON bubble detecting portion 21 to bring a state in which the bubble entering air duct 10 can be detected.
  • bubble detecting portion 21 is turned ON to bring a state in which the entrance of the bubble can be detected.
  • power consumption can be lessened as compared with the case in which bubble detecting portion 21 is usually turned ON, and furthermore, the entrance of the bubble into air duct 10 can be prevented precisely.
  • the drum-type washing machine operates bubble detecting portion 21 to detect the bubble entering air duct 10 in the high speed rotation of drum 4 in at least the washing step.
  • bubble detecting portion 21 detects the entrance of the bubble into air duct 10
  • blasting fan 13 is operated to send air so as to be downward blown toward blowing port 11 from above blowing port 11 so that the bubble in air duct 10 is pushed and returned toward water tub 3 side.
  • the entrance of the bubble into air duct 10 can be prevented efficiently. Therefore, the high speed rotation of drum 4 can be carried out at the washing step. Consequently, it is possible to sufficiently discharge a large quantity of washing water contained in laundry A from the laundry by a centrifugal force generated with the high speed rotation and to effectively remove the washing water having dirt dissolved therein from a fiber, thereby enhancing the washing effect. As a result, it is possible to simultaneously implement the prevention of the entrance of the bubble into air duct 10 and the high washing effect.
  • control portion 25 rotates drum 4 at a high speed, and at the same time, bubble detecting portion 21 is turned ON to bring a state in which the bubble entering air duct 10 can be detected in the present exemplary embodiment, the present invention is not restricted thereto. Also when control portion 25 rotates drum 4 at a low speed, bubble detecting portion 21 may be turned ON to bring a state in which the bubble entering air duct 10 can be detected. Consequently, it is possible to prevent the bubble from entering air duct 10 irrespective of the rotating speed of drum 4.
  • Fig. 4 is a perspective view showing a main part of air duct according to a second exemplary embodiment of the present invention.
  • the present exemplary embodiment is different from the first exemplary embodiment in that a plurality of bubble detecting portions 21 is provided in air duct 10 from air blowing port 11 to blasting fan 13.
  • the other structures are the same as those of the first exemplary embodiment and the same structures have the same reference numerals, and detailed description of the first exemplary embodiment will be incorporated by reference.
  • a plurality of bubble detecting portions 21 is correspondingly provided at predetermined interval L with respect to a direction (a direction of arrow b) in which a bubble entering air duct 10 flows in order of first sensor 21a, second sensor 21b and third sensor 21c upward from blowing port 11 in three places in air duct 10.
  • control portion 25 varies a quantity of air to be sent by blasting fan 13 according to a time interval between signals detected by bubble detecting portion 21 (first sensor 21a, second sensor 21b or third sensor 21c). Consequently, unnecessary blasting can be reduced and the bubble can be efficiently pushed out of air duct 10 reliably.
  • control portion 25 sets the quantity of air to be sent by blasting fan 13 to be larger than a predetermined value when the time interval between signal detected by bubble detecting portion 21 (for example, a time internal from first sensor 21a to second sensor 21b or from second sensor 21b to third sensor 21c) is shorter.
  • the predetermined value is set to be a quantity of blast obtained immediately before the air is sent by blasting fan 13. Consequently, time intervals from a start of detection to first sensor 21a, from first sensor 21a to second sensor 21b and from second sensor 21b to third sensor 21c are measured. As a result, a bubble is pushed back in an optimum quantity of blast in which an entrance is prevented against an increase situation of the bubble so that the entrance of the bubble into the air duct can be prevented precisely.
  • Table 1 shows the relationship between the time intervals between signals detected by first sensor 21a, second sensor 21b and third sensor 21c and the quantity of the air sent by blasting fan 13. Referring to the quantity of blast, for example, an output of 100% of a blast capability in blasting fan 13 is set to be “large”, an output of 50% is set to be “middle” and an output of 20% is set to be “small”.
  • drum 4 is rotated at a high speed, and at the same time, a time that first to third sensors 21a to 21c are turned ON is set to be a detection starting time.
  • duration t from the start of the detection to an entrance of a bubble generated in water tab 3 and drum 4 into air duct 10 through blowing port 11 and a contact with first sensor 21a is detected by control portion 25.
  • control portion 25 duration t from the start of the detection to an entrance of a bubble generated in water tab 3 and drum 4 into air duct 10 through blowing port 11 and a contact with first sensor 21a is detected by control portion 25.
  • the quantity of blast through blasting fan 13 is set to be "small" and the air is sent.
  • blasting fan 13 is not driven but a stopping state is maintained.
  • control portion 25 increases the quantity of blast through blasting fan 13 from "small" to "middle".
  • control portion 25 controls to set the quantity of blast into "small” and to continuously carry out blasting until the detection signal from first sensor 21a is eliminated, and to push the bubble back.
  • control portion 25 controls to maintain the quantity of blast to be "small” and to continuously carry out the blasting until the detection signal from first sensor 21a is eliminated, and to push the bubble back.
  • control portion 25 controls to set the quantity of blast through blasting fan 13 from “middle” to "large” and to push the bubble out of air duct 10 in the quantity of blast at a maximum output (100 %).
  • control portion 25 increases the quantity of blast through blasting fan 13 from "small" to "middle".
  • control portion 25 controls to maintain the quantity of blast through blasting fan 13 to be "Small” and to continuously carry out the blasting until the detection signal from first sensor 21a is eliminated, and to push the bubble back.
  • the time intervals for the detection of the bubble through bubble detecting portions 21 are measured. Consequently, it is possible to push the bubble back from air duct 10 in an optimum quantity of blast which prevents the entrance of the bubble according to the time interval. As a result, the entrance of the bubble into air duct 10 can be prevented more efficiently.
  • the quantity of blast is controlled according to the time interval of the detection signal in Table 1 according to the present exemplary embodiment, the present invention is not restricted thereto.
  • the control may be carried out according to a speed at which the bubble reaches each bubble detecting portion 21. Consequently, it is possible to reliably prevent the bubble from entering air duct 10.
  • blasting fan 13 may be driven by setting the case in which the bubble reaches first sensor 21a in one second or less into “large” and setting the case in which the bubble reaches first sensor 21a in two seconds or less into “middle". Consequently, it is possible to detect the bubble with higher precision.
  • the quantity of blast is varied according to the time interval between signals detected by bubble detecting portions 21 (first sensor 21a, second sensor 21b and third sensor 21c) in the present exemplary embodiment, moreover, the present invention is not restricted thereto.
  • the quantity of blast may be varied according to an arrival time from when detecting is started to when the bubble arrives at bubble detecting portion 21 of first sensor 21a, second sensor 21b and third sensor 21c, or speed during the time. Consequently, air in the quantity of blast according to the arrival duration or speed of the bubble can be blown onto the bubble. As a result, power consumption can be lessened and the entrance of the bubble into the air duct can be prevented reliably.
  • bubble detecting portions 21 are provided in the vicinity of blowing port 11 of air duct 10 in the present exemplary embodiment, furthermore, the present invention is not restricted thereto.
  • first sensor 21a is provided on blowing port 11 of air duct 10 and second sensor 21b is provided in a position at a predetermined interval in a blasting direction (a direction of arrow b), and third sensor 21c is not provided.
  • control portion 25 controls to vary the quantity of blast according to a time interval or a speed for the detection of the entrance of the bubble in contact with second sensor 21b by setting, as a starting point, a time that the bubble is detected through first sensor 21a provided on blowing port 11. Consequently, the air in the quantity of blast according to the arrival time or speed of the bubble can be blown onto the bubble. As a result, the power consumption can be lessened and the entrance of the bubble into air duct 10 can be prevented more precisely.
  • control portion 25 controls to continuously carry out sending air until the detection signal from bubble detecting portion 21 is eliminated if it is decided that the increase in the bubble entering air duct 10 is suppressed in the exemplary embodiment, moreover, the present invention is not restricted thereto. For example, if a resistance value or a current which is detected by bubble detecting portion 21 has a certain value, the blasting may be stopped. Consequently, a duration for driving blasting fan 13 is shortened. Therefore, the power consumption can be reduced more greatly.
  • blower 13 is operated when bubble detecting portion 21 detects the entrance of the bubble in the exemplary embodiment, moreover, the present invention is not restricted thereto.
  • the air can be sent from blowing port 11 before the entrance of the bubble is detected by bubble detecting portion 21.
  • the generation of the bubble is increased, consequently, it is possible to prevent the entrance of the bubble from blowing port 11 into air duct 10.
  • a pair of electrodes in bubble detecting portion 21 is provided close to each other in air duct 10.
  • the entrance of the bubble can be reliably detected even if the bubble is not linked to washing water in water tab 3.
  • the bubble can be discharged from air duct 10 to an outside of blowing port 11 through blasting.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Claims (7)

  1. Trommelwaschmaschine, die Folgendes umfasst:
    ein Gehäuse (1);
    einen Wasserbottich (3), der in dem Gehäuse (1) gehalten wird;
    eine Trommel (4), die in dem Wasserbottich (3) drehbar vorgesehen ist;
    einen Motor (9) zum Drehen und Antreiben der Trommel (4);
    eine Luftleitung (10), die eine Ansaugöffnung (12) und eine Einblasöffnung (11) aufweist, die Luft in die Trommel (4) einleitet;
    ein Gebläse (13), das in der Luftleitung (10) vorgesehen ist, um Luft in die Trommel (4) zu schicken;
    einen Blasendetektionsabschnitt (21) zum Detektieren einer Blase, die in die Luftleitung (10) eintritt; und
    einen Steuerungsabschnitt (25) zum Steuern eines Waschschritts zum Waschen von Wäsche mit einer niedrigen Drehzahl, bei der die Wäsche einem schlagenden Waschen in der Trommel (4) unterzogen wird, und mit einer hohen Drehzahl, bei der die Wäsche an einer Innenumfangsfläche der Trommel (4) haftet, eines Spülschritts und/oder eines Entwässerungsschritts,
    wobei in dem Waschschritt der Steuerungsabschnitt (25) den Blasendetektionsabschnitt (21) ansteuert, das Gebläse (13) ansteuert, damit es Luft von oberhalb der Einblasöffnung (11) zu der Einblasöffnung (11) schickt, wenn der Blasendetektionsabschnitt (21) den Eintritt der Blase detektiert, und bewirkt, dass die Blase von der Einblasöffnung (11) in Richtung der Seite des Wasserbottichs fließt, dadurch gekennzeichnet, dass
    der Blasendetektionsabschnitt (21) ein Paar Elektroden umfasst und dass das Paar Elektroden an einer Innenumfangsfläche der Luftleitung (10) in einer senkrechten Richtung zu einer axialen Richtung der Luftleitung (10) einander gegenüberliegend vorgesehen ist.
  2. Trommelwaschmaschine nach Anspruch 1, wobei in dem Waschschritt mit der hohen Drehzahl der Steuerungsabschnitt (25) den Blasendetektionsabschnitt (21) ansteuert und das Gebläse (13) ansteuert, um zu bewirken, dass die Blase in Richtung der Seite des Wasserbottichs fließt, wenn der Blasendetektionsabschnitt (21) den Eintritt der Blase detektiert.
  3. Trommelwaschmaschine nach Anspruch 1, wobei der Blasendetektionsabschnitt mehrere Detektionsabschnitte (21 a, 21 b, 21 c) umfasst, die in einer Richtung vorgesehen sind, in die die Blase, die in die Luftleitung eintritt, fließt.
  4. Trommelwaschmaschine nach Anspruch 3, wobei die mehreren Detektionsabschnitte (21a, 21b, 21c) in einem vorher festgelegten Abstand (L) in der Luftleitung (10) von der Lufteinblasöffnung (11) zu dem Gebläse (13) in einer Richtung vorgesehen sind, in die die Blase, die in die Luftleitung (10) eintritt, fließt.
  5. Trommelwaschmaschine nach Anspruch 3, wobei der Steuerungsabschnitt (25) in Übereinstimmung mit einem Zeitabstand zwischen Signalen, die durch den Blasendetektionsabschnitt (21) detektiert werden, eine Luftmenge ändert, die von dem Gebläse (13) geschickt werden soll.
  6. Trommelwaschmaschine nach Anspruch 5, wobei der Steuerungsabschnitt (25) die Luftmenge, die von dem Gebläse (13) geschickt werden soll, so eingestellt wird, dass sie größer als ein vorher festgelegter Wert ist, wenn der Zeitabstand zwischen dem Signal, das durch zwei benachbarte Blasendetektionsabschnitte (21 a, 21 b, 21 c) detektiert wird, kürzer ist.
  7. Trommelwaschmaschine nach einem der Ansprüche 1 bis 6, wobei in dem Spülschritt zum Spülen der Wäsche mit der niedrigen Drehzahl, bei der die Wäsche einem schlagenden Waschen in der Trommel (4) unterworfen wird, und mit der hohen Drehzahl, bei der die Wäsche an der Innenumfangsfläche der Trommel (4) haftet, der Steuerungsabschnitt (25) den Blasendetektionsabschnitt (21) bei der hohen Drehzahl der Trommel (4) aktiviert, um die Blase zu detektieren.
EP11188720.4A 2010-11-24 2011-11-11 Trommelwaschmaschine Not-in-force EP2458061B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010260861A JP5598283B2 (ja) 2010-11-24 2010-11-24 ドラム式洗濯機
JP2010260860A JP2012110461A (ja) 2010-11-24 2010-11-24 ドラム式洗濯機

Publications (2)

Publication Number Publication Date
EP2458061A1 EP2458061A1 (de) 2012-05-30
EP2458061B1 true EP2458061B1 (de) 2016-06-15

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EP11188720.4A Not-in-force EP2458061B1 (de) 2010-11-24 2011-11-11 Trommelwaschmaschine

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EP (1) EP2458061B1 (de)
CN (1) CN102535087B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
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US9809915B2 (en) * 2013-12-26 2017-11-07 Dongbu Daewoo Electronics Corporation Drum type washing machine and operating method of the same
CN107227598A (zh) * 2016-03-24 2017-10-03 杭州三花家电热管理系统有限公司 烘干系统及具有其的衣物处理装置
KR102573126B1 (ko) 2016-05-04 2023-09-01 엘지전자 주식회사 건조기의 제어 방법
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CN109944029B (zh) * 2017-12-21 2023-07-04 青岛海尔洗涤电器有限公司 一种洗衣机消除泡沫的方法及洗衣机
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CN116356522A (zh) * 2021-12-27 2023-06-30 青岛海尔洗涤电器有限公司 一种衣物处理设备控制方法及衣物处理设备

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