EP2312047B1 - Séchoir et machine à laver et à sécher - Google Patents

Séchoir et machine à laver et à sécher Download PDF

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Publication number
EP2312047B1
EP2312047B1 EP10187484.0A EP10187484A EP2312047B1 EP 2312047 B1 EP2312047 B1 EP 2312047B1 EP 10187484 A EP10187484 A EP 10187484A EP 2312047 B1 EP2312047 B1 EP 2312047B1
Authority
EP
European Patent Office
Prior art keywords
clothes
drum
drying
air duct
section
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
EP10187484.0A
Other languages
German (de)
English (en)
Other versions
EP2312047A1 (fr
Inventor
Yuji Ozeki
Shigeharu Nakamoto
Kouji Nakai
Kenji Terai
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Panasonic Corp
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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 JP2009238910A external-priority patent/JP2011083458A/ja
Priority claimed from JP2009238908A external-priority patent/JP2011083456A/ja
Application filed by Panasonic Corp filed Critical Panasonic Corp
Priority to EP11174377.9A priority Critical patent/EP2400053B1/fr
Publication of EP2312047A1 publication Critical patent/EP2312047A1/fr
Application granted granted Critical
Publication of EP2312047B1 publication Critical patent/EP2312047B1/fr
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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • 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
    • 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
    • D06F2103/26—Imbalance; Noise level
    • 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
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2105/32—Air flow control means
    • 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
    • D06F2105/62—Stopping or disabling machine operation
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/44—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of conditioning or finishing, e.g. for smoothing or removing creases
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers

Definitions

  • the present invention relates to a drying machine for drying clothes and a washing and drying machine for washing and drying clothes.
  • the conventional drum-type drying machine and the washing and drying machine of Japanese laid-open patent publication No. Hei 7-185196/1995 includes a drum for storing clothes to be dried, a motor which rotates the drum in reciprocal directions, a hot air supplying unit with a fan for supplying hot air into the drum and a heater.
  • the foregoing conventional drum-type washing and drying machine further includes a load variation amount detection means that detects an amount of variation in the motor load per rotation of the drum, wherein it is determined that an entanglement of clothes to be dried has actually occurred when the amount of variation in the motor load per rotation of the drum becomes a predetermined value or above, and the motor is driven in reverse direction.
  • the conventional drum-type washing and drying machine described in Japanese laid open patent publication No. 259549/2008 comprises a blower that inhales air from a water tank and spouts air, a heater that heats air, provided in the downstream of the blower, a switching device that switches the spouting end of the air inhaled by the blower, a front-side blowoff opening provided so as to oppose a drum opening, for spouting air from the switching device in the rotating drum, a back-side blowoff opening provided at the rear side of the rotating drum, for spouting air from the switching device in the rotating drum, and a control section that controls the blower, the heater, and the switching device, etc.
  • control section controls the switching device in such a manner than the spouting end of the air inhaled into the blower is not switched in the constant rate drying process, and the spouting end of the air inhaled to the blower is switched in the lapse rate drying process.
  • the drying air spouted from either the front-side blowoff opening or the rear-side blowoff opening in the constant rate drying process.
  • the drying air spouted from the other of the front-side blowoff opening and the rear-side blowoff opening in the lapse rate drying process.
  • the drying air is spouted against the washing to which the drying air cannot be reached with ease in the constant rate drying process.
  • the washing can be dried without irregularity in a short period of time.
  • the spouting end of the drying air can be switched at a timing of switching to the lapse rate drying process.
  • high performance drum-type washing and drying machines in which directly before the drying process, the clothes are subjected to the spinning process for a long time with high speed rotations (for example, the drum rotation number of 1,500 rpm or above, and the dehydration-rate at the completion of the spinning process reaches 80 % or above).
  • the above-mentioned conventional structure only executes the switching of a spouting end of the drying air between the constant rate drying process or the lapse rate drying process. Therefore, the drying process is not carried out while detecting the drying level of the clothes. Moreover, it cannot be determined whether the uneven drying condition of clothes is solved to a sufficient level.
  • the spouting end of the drying air is simply switched between the constant rate drying process and the lapse rate drying process, and the drying operation is not performed while detecting the drying level of the clothes. Furthermore, it is not determined if an uneven drying state has been solved to a sufficient level.
  • the foregoing conventional structure has a problem in that it is difficult to surely reduce uneven drying of the clothes.
  • EP 2 143 837 A1 , JP 2008 054960A and WO 2004/048673 disclose technologies relevant to the present invention described below in detail. However these disclosed technologies do not address or overcome the aforementioned drawbacks.
  • a drying machine in accordance with one aspect of the present invention includes: a drum for storing clothes to be dried; a drum drive section for rotatably driving said drum; an entanglement determination section for determining if entanglement of clothes has occurred in said drum; a first air duct with a first blowoff opening which is opened to said drum; a second air duct with a second blowoff opening which is opened to said drum, said second blowoff section having a smaller cross-sectional blowing area than that of said first blowoff section; an air duct switch section which selectively switches between said first air duct and said second air duct; a blower section which blows drying air into said drum from said first blowoff opening when said first air duct is selected for blowing drying air into said drum, and blows drying air into said drum from said second blowoff opening when said second air duct is selected, said drying air from said first blowoff opening being of larger airflow quantity than said drying air from said second blowoff opening; and a control section which controls
  • the drying machine in accordance with another aspect of the present invention includes: a drum for storing clothes to be dried; a drum drive section for rotatably driving said drum; a blower section for blowing drying air into said drum; a first air duct with a first blowoff opening which is opened at a rear side of said drum; a second air duct with a second blowoff opening which is opened at a front side of said drum; an air duct switch section which selectively switches between said first air duct and said second air duct; an oscillation detection section which detects an oscillation of said drum; and a control section which controls the air duct switch section based on a result of detection by said oscillation detection section to selectively switch between the first air duct and the second air duct in a drying process.
  • Fig. 1 is a cross-sectional side view showing the schematic configuration of the drum-type washing and drying machine in accordance with one embodiment of the present invention.
  • a barrel-shaped drum 1 for storing therein the washing has a bottom surface and is opened at the front.
  • the drum 1 is housed in a barrel housing 2 serving as a water tank for storing washing water, and is supported in a cabinet 100.
  • a drum drive motor (drum drive section) 3 for rotating the rotation shaft of the drum 1, which is sloped upwards to the front.
  • a feed duct with a feed valve 25 see Fig. 2
  • a discharge duct 40 with a discharge valve 27 To the barrel housing 2, connected are a feed duct with a feed valve 25 (see Fig. 2 ) and a discharge duct 40 with a discharge valve 27.
  • the cabinet 100 has a door 35 provided so as to face the opening of the drum 1 so that the user can place the clothes of the washing in and take them out of the drum 1 by opening the door 35.
  • a rotating operation tumbling operation
  • clothes are lifted up as being caught by these plural projection bodies while rotating the drum 1 at low speed, and the clothes are then dropped from an appropriate height position.
  • the drying air for drying the clothes is sent to the blower section 4, and deprives moisture from the washing in the drum 1 and becomes humid.
  • the resulting humid drying air is discharged to the outside of the drum 1 through the discharge opening 5 on the side face of the drum 1.
  • the dehumidifier section 6 dehumidifies the drying air as discharged.
  • the heater section 7 heats the resulting drying air as dehumidified by the dehumidifier section 6.
  • the drying air as being heated is directed either to the first air duct 9 or the second air duct 11, and is then blown again into the inside of the drum 1.
  • the first air duct 9 has the first blowoff opening 8, which is opened at the rare side of the drum 1.
  • the second air duct 11 has the second blowoff opening 10 which is opened at the front side of the drum 1.
  • the first blowoff opening 8 of the first air duct 9 has a larger cross-sectional blowing area than the second blowoff opening 10 so that drying air of larger airflow quantity with smaller loss in pressure can be spouted into the drum 1 as compared to the drying air spouted from the second air duct 11.
  • the second blowoff opening 10 of the second air duct 11 has a smaller cross-sectional blowing area than that of the first blowoff opening 8, so that the drying air of higher pressure and higher speed can be spouted into the drum 1 from the second blowoff opening 10 than the drying air spouted from the first blowoff opening 8.
  • the space between the front side of the drum 1 that rotates and the barrel housing 2 is minimized to avoid the clothes from being caught. Therefore, it is difficult in terms of space to provide a large blowoff opening at small loss in pressure in such a small space.
  • the second blowoff opening 10 with relatively small cross-sectional blowing area which spouts air with high speed and pressure.
  • the air duct switch section 12 is provided at a branch section between the first air duct 9 and the second air duct 11, on the downstream side of the blower section 4. This air duct switch section 12 switches the air duct for the drying air either to the first air duct 9 or to the second air duct 11.
  • the air duct switch section 12 has a drive section (not shown) for rotatably driving the valve 12a which is rotatably supported by the branch section between the first air duct 9 and the second air duct 11.
  • the blower section 4 and the air duct switch section 12 are provided, the air passes through the discharge opening 5, the defumidifier section 6 and the heater section 7 in this order, and the drying air is spouted again into the drum 1 either from the first blowoff opening 8 or the second blowoff opening 10, to circulate the drying air in the drum-type washing and drying machine.
  • the blower section 4 is provided between the heater section 7 and the air duct section 12, and the drying air heated at the heater section 7 is sent to the downstream side of the air duct 13.
  • the blowing fan 4a of the blower section 4 is driven in such a manner that the airflow quantity of the drying air which passes the first air duct 9 is of a larger airflow quantity than that of the second air duct 11.
  • the blowing fan 4a of the blower section 4 is driven in such a manner that the drying air spouted from the second blowoff opening 10 of the second air duct 11 is of a predetermined speed that is higher than that of the drying air spouted from the first blowoff opening 8.
  • the velocity of the air that spouted from the first blowoff opening can be set to around 10 m/s
  • the velocity of the air that spouted from the second blowoff opening 10 can be set to around 50 m/s or above.
  • the velocity of the air spouted from the first blowoff section 8 or the second blowoff section 10 is not limited to the above as long as the velocity of the air spouted from the second blowoff section 10 is higher than that of the air from the first blowoff section 8.
  • the air that passes through the first air duct 9 is of larger airflow quantity than that passes through the second air duct 11, the velocity of the air spouted from the second blowoff section 10 of the second air duct 11 is higher than that from the first blowoff section 8, and based on the result of determination of the entanglement (to be explained later) in the drying process, it is switched between the first air duct 9 and the second air duct 11 by the air duct switch section 12.
  • the discharge opening 5 is provided at position more away from the first blowoff opening 8 than from the second blowoff opening 10 (i.e., the discharge opening 5 is formed at position closer to the second blowoff opening 10 than to the first blowoff opening 8).
  • the discharge opening 5 is formed at position more to the front half than the back half.
  • the discharge opening 5 may be provided in a vicinity of the second blowoff opening 10 at the front side of the drum 1 at position most away from the first blowoff opening 8 among positions where the discharge opening 5 can be formed.
  • the discharge opening 5 As described, by forming the discharge opening 5 at position closer to the second discharge opening 10 at the front side of the drum 1 and to be away from the first blowoff opening 8, a longer distance can be ensured between the first blowoff opening 8 and the discharge opening 5. As a result, while the air is spouting from the first blowoff opening 8 provided at the back side of the drum 1, the drying air from the first blowoff opening 8 can be widely spread over the space in the drum 1. It is therefore possible to make the clothes contact the drying air in the drum 1 in an efficient manner, and to dry the clothes using small power consumption.
  • the drying air at high pressure and high speed spouted from the second blowoff opening 10.
  • the drying air can reach entire space from the front to the back in the drum 1.
  • a desirable contact between the drying air and the clothes is not disturbed, thereby maintaining the effect of stretching the wrinkles by spouting drying air at high pressure and high speed.
  • the discharge opening 5 is provided above the drum 1, so that the drying air after having contacted the clothes can be discharged in a sufficient manner.
  • the discharge opening 5 in the drum-type drying machine without washing function, it is possible to form the discharge opening 5 at positions other that the position above the drum 1.
  • the second blowoff opening 10 is formed in the front upper portion in the drum 1. Therefore, it is possible to spout the drying air from the second blowoff opening 10 at high pressure and high speed effectively against the moving clothes as being lifted up with the rotations of the drum 1, thereby effectively reducing the wrinkles of the clothes.
  • first blowoff opening 8 is provided for the first air duct 9
  • second blowoff opening 10 is provided for the second air duct 11; however, a plurality of second blowoff openings 11 may be provided.
  • a dumper 34 which supports the barrel housing 2 and attenuates the oscillations of the barrel housing 2 when rotating the drum 1 in the weight unbalanced state due to the clothes as being biased in the drum 1 when carrying out the spinning process or the like.
  • a cloth amount detection section 15 which detects an amount of the clothes by detecting a change in displacement amount, which moves up and down the shaft of the dumper 34 by a change in weight due to clothes in the barrel housing 2 to be supported.
  • the drum-type washing and drying machine of the present embodiment adopts the heat pump method which carries out dehumidification and heating, and is provided with a heater 50.
  • This heat pump device 50 comprises a compressor 16 that compresses a refrigerant, a condenser 17 that condenses heat from the refrigerant, that becomes high temperature and high pressure as being compressed, a decompressor 18 which decompresses the refrigerantat high pressure; a heat absorber 36 which deprives heat from the surroundings by the refrigerant which becomes low pressure as being decompressed; and a duct 31 which connects the above four members to circulate therein the refrigerant.
  • the heat absorber 36 in this heat pump device is the defumidifier section 6, and the condenser 17 is the heater section 7.
  • the drum-type washing and drying machine of the present embodiment is not limited to the structure, which dries clothes in the heat-pump system.
  • the dehumidifier section 6 may adopt the water-cooling system that sprays water directly against the drying air.
  • the drum-type washing and drying machine is provided with the control section 70.
  • This control section 70 controls the sequential operation of washing, rinsing, spinning process based on the setting information to be input by the user via the input setting section 32 and the monitoring of the operation state in respective sections.
  • the control section 70 controls the rotations of the drum drive motor 3, and operations of the blower section 4, the dehumidifier section 6 and the heating section 7, and further controls the air duct switch section 12 between the first air duct 9 and the second air duct 11.
  • the control section 70 controls washing, rincing, spinning operations, and displays in the display section 33 the states in the drying process on the display section 33.
  • This control section 70 is made up of, for example, a CPU (Central Processing Unit) not shown, a ROM (Read Only Memory) which stores the program, a RAM (Random Access Memory) which stores a program or data when executing various processes, an input/output interface and a bus which connects these members.
  • a CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • an AC power 23 is rectified by a rectifier 28, and is further rectified by the rectifying circuit made up of a coil reactor 29 and a smooth capacitor 30. Then, the drum drive motor 3 is rotationally driven by the invertor circuit 22 using the DC power as rectified as the drive power.
  • the control section 70 controls the rotations of the drum drive motor 3 based on the drive instructions to be input from the input setting section 32 and the monitoring information in the driving state to be detected by each detection section,. Furthermore, the control section 70 controls the operations of necessary load such as a feed valve 25, a discharge valve 27, a blower section 4, a defumidifier section 6, a heater section 7, etc.
  • the drum drive motor 3 for example, includes a stator provided with three phase winding 3a, 3b, and 3c, and a rotor provided with permanent magnet in two poles, and a rotor with a permanent magnet in two poles, and is configured as a DC brushless motor provided with three position detection elements 19a to 19c.
  • This drum drive motor 3 is rotationally controlled by the invertor circuit 22 which permits PWM control by the switching elements 22a to 22f.
  • the rotor position detection signal to be detected by the position detection elements 19a to 19c is input to the control section 70.
  • the control section 70 outputs the control signal to the invertor drive circuit 21 based on the rotor position detection signal, and PWM controls the ON/OFF state of the switching element 22a to 22f based on the rotor position detection signal via the invertor drive circuit 21.
  • the control section 70 controls the conduct with respect to the three-phase winding 3a, 3b, and 3c of the stator, and rotates the rotor of the drum drive motor 3 at a predetermined rotation speed.
  • the control section 70 detects the states in signals a periodic cycle of a signal every time the state of signal in any of the position detection elements 19a to 19c has changed, and computes the rotation speed of the rotor based on the periodic cycle as detected by the rotation number detector 19 as an internal function.
  • an oscillation detection section 14 which detects oscillations or impact of the barrel housing 2. An output value from the oscillation detection section 14 is used for determining if the entanglement of the clothes has occurred in the drying process (detailed explanations will be described later).
  • the oscillation detection section 14 adopted as an acceleration sensor is an acceleration sensor, which permits detection of acceleration in three directions (detection directions 14a, 14b and 14c) which intersect at right angles.
  • the detection direction 14a is set in the direction of the rotation shaft 1a of drum 1.
  • the detection direction 14b is the right and left horizontal direction.
  • the detection direction 14c is a substantially vertical in the top and bottom direction, which is orthogonal to the detection directions 14a and 14b.
  • the oscillation detection section 14 adjusts the mounting direction to the barrel housing 2 so that oscillations in respective directions of the detection directions 14a, 14b and 14c can be monitored.
  • the detection direction of the acceleration sensor is not limited to the detection directions 14a, 14b and 14c, and it may be arranged so as to detect accelerations in other directions.
  • the installation position of the oscillation detection section 14 provided in the barrel housing 2 is not particularly limited. However, in the case of adopting the acceleration sensor as the oscillation detection section 14, it is preferable to install the acceleration sensor at position away from a dumper 34, which attenuates oscillations of the barrel housing 2. By installing the acceleration sensor at position away from the dumper 34, it is possible to detect highly sensible oscillations.
  • the acceleration sensor is provided in the upper portion on the front opening side of the barrel housing 2.
  • the acceleration sensor of any of the semiconductor type, mechanical type, and optical type may be used.
  • the semiconductor acceleration sensor suited for compact size is preferably adopted.
  • the acceleration sensor that can detect accelerations in three directions (three axes) of the detection directions 14a, 14b and 14c is detected.
  • the number of detection axes of the acceleration sensor is not limited to three.
  • an acceleration sensor of one to three axes that can detect the acceleration in at least one direction of the detection directions 14a, 14b and 14c may be adopted.
  • the acceleration sensor as the oscillation detection section 14 may be used for detecting the weight unbalanced state due to the clothes biased in the drum 1 in the spinning process of the clothes by rotating the drum 1 at high speed. Therefore, the acceleration sensor as the oscillation detection section 14 may be used both for the determination of the occurrence of the entanglement of the clothes in the drying process and determination of the weigh unbalanced state in the spinning process.
  • the oscillation detection section 14 is not limited to the acceleration sensor.
  • an angular velocity sensor 38 may be adopted as the oscillation detection sensor.
  • the angular velocity sensor 38 detects an angular velocity when the barrel housing 2 is displaced as being oscillated.
  • the installation direction of the angular velocity 38 at the barrel housing 2 is adjusted so that the angular velocity in the rotation direction 38a with an axis in the left and right horizontal direction when viewed from the front opening of the drum 1 can be detected.
  • the rotation direction 38a to be detected by the angular velocity sensor 38 is not limited to this, and it may be arranged so as to detect the angular velocity in other rotation direction.
  • the angular velocity of the barrel housing 2 to be detected by the angular velocity sensor 38 is the same irrespectively of the position of the barrel housing 2.
  • a mechanical type, fluid type or optical type gyroscope, or the like may be adopted.
  • the mechanical type (oscillation type) gyroscope suited for compact size is preferably adopted.
  • the oscillation detection sensor 14 only one acceleration sensor shown in Fig. 1 or the angular velocity sensor 38 shown in Fig. 8 is provided at the barrel housing 2.
  • the present invention is not intended to be limited to this, and for the oscillation detection sensor 14, plural acceleration sensors or plural angular velocity sensors 38 may be provided at the barrel housing 2. Furthermore, it may be arranged so as to provide both an acceleration sensor and an angular velocity sensor 38 at the barrel housing 2.
  • the oscillation detection section 14 it is possible to improve the precision in the oscillation detection by adopting a plurality of sensors as the oscillation detection section.
  • the generation of the entanglement of the clothes in the drying process of the clothes will be considered.
  • the clothes can be moved only in the small space, the entanglement of the clothes is liable to occur.
  • the clothes including long sleeved clothes the long sleeve portions of the clothes are liable to be entangled with other portions of the clothes. If the drying process is continued, the number of the wrinkles of the clothes as dried is liable to be increased.
  • the present embodiment is arranged such that based on an output value of the oscillation detection section 14 fixed to the barrel housing 2, the entanglement determination section 20 of the control section 70 shown in Fig. 2 determines accurately if an entanglement of the clothes has occurred in the drum 1.
  • the mechanism of this structure of the present embodiment will be explained.
  • an output value of the oscillation detection section 14 fixed to the barrel housing 2 becomes smaller as the drying process progresses. Furthermore, depending on the degree of the entanglement of the clothes in the drum, an output value of the oscillation detection section 14 will differs. Namely, in the state where the entanglement of the clothes in the drum 1 has not occurred (or small), the clothes lifted up by the tumbling in the drum 1 drops at small intervals. Therefore, an impact to the drum 1 is small, and an output value of the oscillation detection section 14 shows a small oscillation value.
  • an output value of the oscillation detection section 14 fixed to the barrel housing 2 shows a larger oscillation value as compared to that in the state where the entanglement of the clothes has not occurred.
  • an output value of the oscillation detection section 14 is reduced gradually as the drying process progresses. In contrast, when an output value of the oscillation detection section 14 increases, it can be determined that an entanglement of the clothes has occurred in the drum 1.
  • an output value of the oscillation detection section 14 is reduced significantly after the entanglement of the clothes has occurred in the drum 1, i.e., an output value is reduced by a larger amount than a reduction amount which can be expected as the drying process progresses, it can be determined that the entanglement of the clothes in the drum is unraveled.
  • the entanglement determination section 20 of the control section 70 determines the entangled state of the clothes.
  • the air at high pressure and high speed spouted from the second blowoff opening 10 of the second air duct 11 against the entangled clothes to unravel the entangled clothes effectively.
  • the entanglement determination section 20 determines that the entanglement has not occurred, the drying air in large airflow quantity at low speed is spouted from the first blowoff opening 8 of the first air duct 9.
  • the first air duct 9 and the second air duct 11 is switched at an appropriate timing so that the entangled clothes can be unraveled effectively with single blower section 4. Furthermore, where the entanglement has not occurred in the drying process, the drying process is performed by spouting drying air of large airflow quantity at low speed. It is therefore possible to reduce an overall power consumption as compared to the case of continuously spouting the drying air at high pressure and high speed. As described, the drum-type washing and drying machine of the present embodiment, it is possible to realize drying operation with small entanglement of the clothes while realizing a reduction in power consumption.
  • Fig. 4 is a graph which shows an output value of the oscillation detection section 14 which varies as the drying process progresses wherein the x-axis indicates the time as passed in the drying process, and the y-axis indicates the output value (oscillation speed) of the oscillation detection section 14.
  • Fig. 5 shows the state of the clothes in the drum 1 for the amplitude A in Fig. 4 .
  • Fig. 6 shows the state of the clothes in the drum 1 for the amplitude B in Fig. 4 .
  • a semiconductor acceleration sensor is adopted which is capable of detecting respective accelerations in three directions (14a, 14b and 14c) which mutually intersect at right angles as the oscillation detection section 14.
  • Fig. 4 shows the results of detection of the acceleration of the barrel housing 2 in the direction of the rotation shaft 1a (i.e., the detection direction 14a) of the drum 1 when the number of rotations in the drum 1 in the drying process is set to 47 rpm. This is because, in the drying process with the above number of rotations, the acceleration in the detection direction 14a is the largest among the above three directions (i.e., the highest sensibility).
  • the present invention is not intended to be limited to the case of detecting the acceleration in the detection direction 14a. Namely, it is preferable to read an oscillation value in a direction of the highest sensitivity according to the structure of the drum, the support structure of the barrel housing 2, the drum 1 (inclined angle of the drum 1, the dumper 34 which supports the barrel housing 2, the structure of mounting the support spring, etc.) or the number of rotations of the drum 1, etc., and it is not intended to be limited to the structure of reading the acceleration in a specific direction.
  • the oscillation detection section 14 be composed as a multiaxial sensing type sensor, which permits the oscillating detections of not less than two axes, and that the oscillation components in plural directions are read so that the value that shows the highest sensitivity in the tumbling operation in the drying process can be selected.
  • Fig. 5 shows the state where the clothes that are not entangled much are lifted up by the rotations of the drum is dropped at small intervals.
  • an acceleration peak-to-peak value (amplitude A in Fig. 4 )) is minute, i.e., about 0.03 G.
  • Fig. 6 shows the state where the clothes that are entangled strongly to form a heavy mass are lifted up by the rotations of the drum is dropped.
  • an impact to barrel housing 2 is large, and the acceleration peak-to-peak value (amplitude B in Fig. 4 ) is increased, i.e., about 0.05 G.
  • the impact to barrel housing 2 becomes smaller gradually since the moisture of clothes is dehumidified, and the weight of clothes lightens, and the output of oscillation detection section 14 becomes smaller.
  • Fig. 7 is a flowchart that shows a switch timing of the air duct based on the result of determination by the entanglement determination section 20.
  • the entanglement determination section 20 starts monitoring an output value (oscillation value V) from the oscillation detection section 14 (S1).
  • the control section 70 is set to use the first air duct 9 of large cross-sectional blowing area with small loss in pressure, and the drying air in large airflow quantity at low speed is spouted from the first blowoff opening 8 from the back of the drum 1 against the clothes (S2).
  • control section 70 controls the air duct switch section 12 to open the first air duct 9, and sets the rotation rate of the blowing fan motor 4b to be relatively low, so that drying air of large airflow quantity can be obtained by driving the blower section 4 with low power consumption.
  • the control section 70 controls the air duct switch section 12 to open the first air duct 9, and sets the rotation rate of the blowing fan motor 4b to be relatively low, so that drying air of large airflow quantity can be obtained by driving the blower section 4 with low power consumption.
  • the first air duct 9 since the loss in pressure is small, it is possible to generate the drying air of large airflow quantity even when driving the lower section 4 at low rotation rate of the blowing fan motor 4b with low power consumption. Therefore, when the drying process is being carried out under the conditions of S2, it is possible to reduce the time required for drying the clothes with smaller power consumption.
  • an oscillation value V to be detected by the oscillation detection section 14 will not be increased, but reduced gradually as time passes in the drying process(oscillating value V decreases gradually).
  • an oscillation value V indicated by the oscillation detection section 14 will not be increased by a predetermined value ⁇ V 1 (first predetermined value) or more from the oscillation value V detected directly before by the oscillation detection section 14 (NO in S3), and the drying process is to be continued under the conditions defined in S2.
  • the entanglement determination section 20 determines that the entanglement has occurred (S5).
  • the control section 70 sets the blowing fan motor 4b to rotate at higher speed so that the drying air of higher pressure and higher speed can spout from the second blowoff opening 10 having a smaller cross-sectional blowing area than that of the first blowoff opening 8 (S6).
  • control section 70 controls the air duct switch section 12 to open the second air duct 11, and controls the blower section 4 to increase the rotation rate of the blowing fan motor 4b. In this way, by spouting air at high pressure and high speed, the entangled clothes can be unraveled.
  • the entanglement determination section 20 determines that the entanglement of the clothes has been unraveled (S9). In this case, the sequence goes back to S2, i.e., the control section 70 switches the air duct switch section 12 to switch an air duct to the first air duct 9.
  • the entanglement determination section 20 of the control section 70 monitors an oscillation value V of the oscillation detection section 14 to determine if an oscillation value V has been increased by a predetermined value ⁇ V 1 or more (S3) or decreased by a predetermined value ⁇ V 2 or more (S7).
  • the oscillation value V of the oscillation detection section 14 indicates a peak value (see Fig. 4 ) when the clothes as being lifted up with the rotations of the drum 1 has dropped.
  • the entanglement determination section 20 may be arranged so as to peak-hold a maximum oscillation value V at predetermined time intervals, and stores in the memory the peak hold value of the oscillation value V at predetermined intervals.
  • the entanglement determination section 20 can determine if the oscillation value V is increased by a predetermined value ⁇ V 1 or more (S3) or decreased by a predetermined value ⁇ V 2 or more (S7) by comparing the current oscillation value V with the previous oscillation value at very predetermined intervals.
  • the predetermined time intervals can be set as desired or according to needs.
  • the oscillation value V has a plurality of peak values.
  • the clothes are entangled to be a big heavy mass, such big mass of the clothes drops within the drum 1 one in one rotation of the drum 1. Therefore, in order to detect oscillations caused by the drop of the mass of the clothes in a predetermined time interval, it is preferable to set the predetermined interval longer than the time required for one rotation of the drum 1.
  • the predetermined values ⁇ V 1 and ⁇ V 2 as criterion for the determination if the entanglement has occurred be adjusted to be reduced gradually in the drying process according to the drying level of the clothes as the drying process progresses.
  • the first and second predetermined values for the period of next 30 minutes can be set to ⁇ V 1 x 0.9 and ⁇ V 2 x 0.9, and the first and second predetermined values for the following period of 30 minutes can be set to ⁇ V 1 x 0.8 and ⁇ V 2 x 0.8. In this way, it is possible to determine if an entanglement has occurred with high precision as the drying process progresses.
  • the foregoing adjustments of the first and second predetermined values ⁇ V 1 and ⁇ V 2 are executed by the entanglement detection section 20 of the control section 70.
  • the control section 70 has a timer (not shown) which measures the time elapsed in the drying process.
  • a timer for the timer, an internal timer in the control section as an operational internal function may be used. However, the timer may be provided independently of the control section 70.
  • the control section 70 (entanglement detection section 20) executes a control operation shown in the flowchart of Fig. 7 by starting the counting of a time elapsed from the start of the drying process by the timer from the start of the drying process, and adjusting the predetermined values ⁇ V 1 and ⁇ V 2 at every 30 minutes.
  • the predetermined values ⁇ V 1 and ⁇ V 2 are adjusted at every 30 minutes.
  • the present invention is not limited to the above, and it may be arranged so as to adjust the predetermined values ⁇ V 1 and ⁇ V 2 at every predetermined time, for example, at every 20 minutes.
  • the predetermined values ⁇ V 1 and ⁇ V 2 may be adjusted step by step at prescribed time intervals.
  • the timing of adjusting the predetermined values ⁇ V 1 and ⁇ V 2 may be adjusted according to an amount of clothes. Namely, the amount of the clothes is detected by the cloth amount detection section 15, and the control section 70 determines the timing of adjusting the predetermined values ⁇ V 1 and ⁇ V 2 according to the result of detection.
  • the predetermined values ⁇ V 1 and ⁇ V 2 are adjusted at every 30 minutes from the start of the drying process; on the other hand, when an amount of the clothes is smaller, the predetermined values ⁇ V 1 and ⁇ V 2 are adjusted every 25 minutes from the start of the drying process.
  • the predetermined values ⁇ V 1 and ⁇ V 2 as criterion for the determination if the entanglement has occurred, be adjusted to increase, as the amount of clothes in the drum 1 increases.
  • the predetermined values for the clothes in an amount of from 4 kg to 5 kg can be set to ⁇ V 1 x 0.9 and ⁇ V 2 x 0.9
  • the clothes in an amount of from 3 kg to 4 kg can be set to ⁇ V 1 x 0.8 and ⁇ V 2 x 0.8
  • the clothes in an amount of from 2 kg to 3 kg can be set to ⁇ V 1 x 0.7 and ⁇ V 2 x 0.7
  • the clothes in an amount of from 1 kg to 2 kg can be set to ⁇ V 1 x 0.6 and ⁇ V 2 x 0.6.
  • the cloth amount determination section determines that the amount of clothes is less than 1 kg, entanglement is less likely to occur. Therefore, it may be arranged not to set the predetermined values ⁇ V 1 and ⁇ V 2 when the amount of clothes is determined to be less than 1 kg.
  • the foregoing adjustments of the predetermined values ⁇ V 1 and ⁇ V 2 set according to the amounts of the clothes (mass) stored in the drum 1 are carried out by the entanglement detection section 20 of the control section 70 based on the results of detection by the cloth amount detection section 15. Before starting washing, the cloth amount detection section 15 detects an amount of the clothes placed in the drum 1.
  • the cloth amount detection section 15 detects an amount of the clothes set in the drum 1 based on the difference between i) the position of the shaft of the dumper 34 in the state where the barrel housing 2 is empty without water (the drum 1 is empty without clothes), and ii) the position of the shaft of the dumper 34 in the state where the barrel housing 2 is empty without water directly before introducing therein water for the start of washing, but the drum 1 has clothes set therein. Then, based on the result of detection of the cloth amount detection section 15, the entanglement detection section 20 of the control section 70 adjusts the predetermined values ⁇ V 1 and ⁇ V 2 as described above. Then, the control operation shown in the flowchart of Fig. 7 is executed. By determining the amount of clothes set in the drum in the foregoing manner, it is possible to determine if an entanglement has occurred with high precision.
  • the predetermined values ⁇ V 1 and ⁇ V 2 as criterion for the determination if the entanglement has occurred may be set to the same value, or different values.
  • the entanglement determination section 20 starts monitoring an output value (oscillation value V of the barrel housing 2) from the oscillation detection section 14 (S11).
  • an oscillation value of V' set according to the cloth amount information or above is detected (YES in S12)
  • the control section 70 controls to use the second air duct 11 having a smaller cross-sectional blowing area with a large loss in pressure to spout the drying air at high pressure and high speed from the second blowoff opening 12 at the front of the drum 1 against the clothes (S14). Namely, the control section 70 controls the air duct switch section 12 to open the second air duct 11 to set the rotation rate of the blower fan motor 4b to high speed. In this case, by spouting drying air at high speed and high pressure from the second blowoff opening 12, the entangled clothes can be unraveled effectively. As the entangled clothes are unraveled with the air at high pressure and high speed, an impact against the barrel housing 2 is reduced gradually.
  • the entanglement determination section 20 determines that the entanglement has been unraveled. In this case, the control section 70 moves the sequence onto S17 to switch the air duct to the first air duct 9 by the air duct switch section 12.
  • an oscillation value to be detected should be lower than the oscillation value V' set according to the amount of clothes (NO in S12).
  • the sequence goes to S17 directly after the start of the drying process, and S17 to S24 are executed.
  • the operations in S17 to S24 are the same as those of S2 to S9 of Fig. 7 , and explanations thereof shall be omitted here.
  • the clothes include those made of chemical fiber, or the like with low water content, or the clothes are entangled strongly due to a mixture of clothes in many kinds (material, shape, etc., of the clothes), it is determined if an entanglement has occurred at the start of the drying process in S12 and S13 as described above. Then, when drying operation is started by spouting drying air at high pressure and high speed against the clothes, the entanglement of the clothes which hinder un uniform drying can be unraveled in an early stage, thereby reducing the time required for the drying process.
  • the drying process with smaller entanglement can be realized, as compared to the case of spouting drying air at high pressure and high speed.
  • the cloth amount detection section 15 for the cloth amount detection section 15, explanations have been given through the case of detecting changes in amount of displacement in up and down direction of the axis of the dumper 34.
  • the present invention is not intended to be limited to this.
  • a cloth amount detection section that detects a rotational speed, driving current, and the amount of the variation of the torque etc. of the drum drive motor 3 that rotates the drum 1 may be adopted.
  • the control section 70 automatically changes the predetermined values ⁇ V 1 and ⁇ V 2 based on a result of detection by the cloth amount detection section.
  • the control section 70 changes the predetermined values ⁇ V 1 and ⁇ V 2 based on the input by the user.
  • an entanglement determination section may be adopted, which detects a change in rotation number, drive current, torque, etc., of the drum drive motor 3 which rotates the drum 1, and which determines that an entanglement of clothes has occurred when a change in amount of the load of the drum drive motor 3 in the drying process is at a predetermined value or above.
  • a drying machine in accordance with one aspect of the present invention includes a drum which stores clothes to be dried, a drum drive section which rotatably drives the drum, an entanglement determination section, an entanglement determination section which determines if an entanglement of the clothes has occurred in the drum; a first air duct having a first blowoff opening which is opened to the drum; a second air duct with a second blowoff opening which is opened to said drum, said second blowoff section having a smaller cross-sectional blowing area than that of said first blowoff section; an air duct switch section which selectively switches between the first air duct and the second air duct, wherein when the first air duct is selected, drying air of larger airflow quantity spouted from the first blowoff opening than the case where when the second air duct is selected, and when the second air duct is selected, drying air of her pressure and higher speed spouted from the second air duct than the case where when the first second air duct is selected; a control section is provided for controlling
  • the air duct which spouts the drying air into the drum which houses the clothes two air ducts of the first air duct and the second air duct are provided, and the air duct switch section switches between these two ducts.
  • the first blowoff opening of the first air duct has a larger cross-sectional blowing area than the second blowoff opening, and of smaller loss in pressure than that from the second blowoff opening of the second air duct.
  • the drying air of larger airflow quantity is spouted into the drum that that in the case where the second air duct is selected. In this case, as the loss in pressure of the first air duct is small, it is possible to obtain the air of large airflow quantity even when drying the blower section with relatively low power consumption.
  • the second air flow opening of the second air duct has smaller cross-sectional blowing area than the first blowoff opening.
  • the drying air of higher pressure and higher speed is spouted into the drum from the second blowoff opening than that in the case of selecting the first air duct.
  • the clothes can be stretched by receiving air at high pressure and high speed. It is therefore possible to unravel the entanglement of the clothes.
  • the entanglement determination section determines if the entanglement of the clothes has occurred in the drum by the entanglement determination section, and based on the results of determination, it is selectively switched between the first air duct and the second air duct in the drying process.
  • the second air duct is selected, while in the case where the entanglement of the clothes has not occurred, the first air duct can be selected.
  • the first air duct can be selected.
  • the arrangement of the present invention which unravels the entanglement of the clothes by drying them with the drying air at high pressure and high speed is more effective to prevent the entanglement of the clothes and reduce the drying time and the wrinkles of the clothes as compared to the conventional arrangement of unraveling the clothes by rotating the drum in reverse direction.
  • first blowoff opening is opened at the back of the drum
  • second blowoff opening is opened at the front of the drum
  • the clothes in the case of drying clothes within a small space in the drum, when the amount of clothes is relatively large, the clothes can be the liquor ratio to which it can freely move in the clothes is small. It is therefore possible to dry clothes without being entangled much even for the clothes which are liable to be entangled. Moreover, when drying the clothes including long sleeved clothes, the long sleeve portions of the clothes are liable to be entangled with other portions of the clothes. If the drying process is continued, the number of the wrinkles of the clothes as dried is liable to be increased.
  • control section controls the air duct switch section to be switched to the second air duct when the entanglement determination section determines that the entanglement has occurred.
  • control section controls the air duct switch section based on a result of determination by the entanglement determination section, to switch between the first air duct and the second air duct in the drying process.
  • the drying air of large airflow quantity is spouted into the drum from the first blowoff opening that is opened at the back side of the drum as compared to the case of selecting the second air duct.
  • the loss in pressure of the first air duct is small, it is possible to obtain the air in large airflow quantity even by drying the blower section with relatively small power consumption. As a result, it is possible to reduce the drying time and an amount of power consumption by the air of large airflow quantity.
  • the oscillation detection section for detecting oscillations of the drum, wherein the entanglement determination section determines that when the output value from the oscillation detection section is increased by the first predetermined value or larger, and that the entanglement of the clothes has been unraveled when the output value of the oscillation detection section is reduced by not less than the predetermined value.
  • the entanglement determination section reduces the first predetermined value and the second predetermined value as time passes in the drying process.
  • the weight of dehumidified clothes decreases gradually according to the dehumidification level as the drying process progresses.
  • an impact to the drum due to the entanglement of the clothes is also becomes smaller gradually as the drying process progresses. Therefore, by reducing the first predetermined value and the second predetermined value as time passes in the drying process, a still higher precision entanglement determination can be realized.
  • the cloth amount detection section for detecting the amount of the clothes in the drum, wherein the entanglement determination section changes the time interval for reducing the first predetermined value and the second predetermined value according to an amount of clothes detected by the cloth amount detection section.
  • the time interval (the adjustment timing of reducing the first predetermined value and the second predetermined value stepwise) is changed according to an amount of clothes to be dried.
  • the overall time for the drying process changes according to the amount of the clothes to be dried (that is, a longer time is required for drying for a larger amount of clothes as it takes longer time for moisture vaporization), and the progress speed of the drying of the clothes is also different.
  • the cloth amount detection detects the amount of the clothes in the drum, and the entanglement determination section changes the first predetermined value and the second predetermined value step by step according to the amount of the clothes (for example, the larger is the amount of clothes, the longer is the set interval).
  • the entanglement determination section changes the first predetermined value and the second predetermined value step by step according to the amount of the clothes (for example, the larger is the amount of clothes, the longer is the set interval).
  • the cloth amount detection section that detects an amount of clothes in the drum 1, wherein the entanglement determination section sets the first predetermined value and the second predetermined value according to the amount of clothes detected by the cloth amount detection section.
  • the weight of the clothes that twine and became masses becomes heavier according to the amount of the clothes in the drum (total weight). If the weight of clothes that twine and became masses becomes heavier, an impact to the drum increases accordingly. Therefore, the first specified value and the second specified value as the criterion of an occurrence of the entanglement are set according to the amount of clothes, thereby ensuring high precision determination of entanglement irrespectively of the amount of the clothes.
  • the oscillation detection section is an acceleration sensor.
  • the oscillation detection section is an angular velocity sensor.
  • an impact to the drum can be detected as an angular velocity, and a level of an impact to the drum, which increases or decreases according to the level of the entanglement of clothes can be determined with high precision.
  • an entanglement determination can be performed with high precision.
  • the angular velocity of the drum is identical at either position of the operation part in a vicinity of the drum. Therefore, the degree-of-freedom at the installation position of the oscillation detection section can be improved.
  • a washing and drying machine includes the cloth drying of any of the foregoing structures, and a water tank for storing the washing water which houses the accommodation section. As described, when applying the present invention to any of the foregoing washing and drying machines, it is possible to realize the washing and drying machine capable of drying the clothes with small entanglement of the clothes at low power consumption.
  • the basic structure of the drum-type washing and drying machine in accordance with the second embodiment is the same as the drum-type washing and drying machine in accordance with the first embodiment shown in Fig. 1 , Fig. 2 , Fig. 9 , etc. Therefore, the same reference numerals are assigned, and explanations thereof shall be omitted here.
  • the control section 170 shown in Fig. 11 determines the drying level of the clothes in the drum 1 (portions of the clothes on the side of the flowoff opening is dried sufficiently) with accuracy. This mechanism will be explained below.
  • the drying process is carried out by selecting either the air duct of either the first air duct 9 or the second air duct 11. Since the water content of the clothes in the drum 1 is reduced gradually as the drying process progresses, the weight of the clothes becomes lighter gradually. As a result, an impact to the drum 1 (an oscillation value detected by the oscillation detection section 14) when the clothes are dropped in the drum 1 is reduced gradually.
  • an oscillation value detected by the oscillation detection section 14 is also reduced. It is therefore possible to determine the drying level of the clothes on the side closer to the blowoff opening of the air duct as selected (the clothes on the side of the blowoff opening is dried to a sufficient level) based on the result of detection by the oscillation detection section 14.
  • control section 170 in accordance with the present embodiment, it is possible to surely reduce uneven drying of clothes by switching the blowoff opening of the drying air while accurately detecting the drying level based on the result of detection of the oscillation detection section 14.
  • Fig. 12 the switching of the air duct based on the results of detection by the oscillation detection section 14 will be explained.
  • Fig. 12 is a graph showing the relationship between the drying time and an integrated output value of an oscillation detection section 14.
  • an oscillation detection section 14 adopted is a semiconductor acceleration sensor which detects respective accelerations in three directions (14a, 14b and 14c) which intersect at right angles.
  • the results of accelerations of the barrel housing 2 in the directions of the rotation axis 1a of the drum (detection direction 14a) are shown in Fig. 1 , provided that the number of rotations of the drum 1 in the drying process is set to 47 rpm. This is because the oscillation value in the detection direction 14a shows the largest oscillation value (i.e., the highest sensitivity).
  • the present invention is not limited to the arrangement of detecting the accelerations in the detection direction 14a. Namely, it is desirable to read the oscillation value in the direction which shows the highest sensitivity according to the structure of the main body, the support structure of the barrel housing 2, the drum (inclination angle of the drum, the mount structure of the dumper 34 or the support spring which support the barrel housing), but the present invention is not intended to be limited to reading the oscillation in a specific direction.
  • the oscillation detection section 14 is constituted by a multiaxial sensing type sensor which is capable of reading oscillation components in a plurality of directions, and to read the oscillation components in a plurality of directions so that the oscillation value in the direction which shows the highest sensitivity can be selected in the tumbling operation in the drying process.
  • the detection axis of the oscillation detection section 14 changes according to the number of rotation in the drying process, to select the detection axis which is the most sensitive to the actual number of rotations. In this case, at the initial stage at the start of the drying process, the level of change in axis of the oscillation detection section 14 is confirmed to select the detection axis which shows the higher sensitivity, to control switching according to changes in the detection axis.
  • the first air duct 9 is selected at a start of the drying process, and the operation of drying the clothes is performed by spouting the drying air from the first blowoff opening 8 into the drum 1. Then, as the drying process using the first air duct 9 progresses, the oscillation value A_pp detected by the oscillation detection section 14 is reduced gradually.
  • the oscillation value A_pp detected by the oscillation detection section 14 is reduced, and an amount of reduction ⁇ A_pp of the oscillation value A_pp per unit time (10 minutes in Fig.
  • the oscillation value A_pp detected by the oscillation detection section hardly changes. This indicates that the clothes on the side of the first blowoff opening have been dried to a sufficient level. Even if the drying operation continues without switching the air duct at the above timing, while the moisture to be removed from the clothes in a vicinity of the air duct is very little, the clothes at position far from the air duct will not be dried to a sufficient level. In the case of switching the air duct at the above timing, as shown in Fig.
  • the oscillation value A_pp is reduced again directly after switching the air duct, and the water content of the clothes in the drum is reduced. This shows that by switching the air duct to the second air duct 11, the clothes on the side of the second blowoff opening 10 progresses, which was not dried to a sufficient level, progresses. With this operation, a partially occurred uneven drying of the clothes in the drum 1 can be solved in an efficient manner.
  • Fig. 13 is a flowchart showing the timing of switching the air duct based on the results of detection by the oscillation detection section 14.
  • the control section 170 starts monitoring the oscillation value to be detected by the oscillation detection section 14 (S31).
  • the integrated value of 10 rotations of the drum 1 of the peak-to-peak value of the accelerations detected by the oscillation detection section 14 is set to the oscillation value A_pp to be detected by the oscillation detection section 14.
  • the multiplication period of oscillating value A_pp is not limited to this, and can be set as desired.
  • the control section 170 opens the first air duct 9 by controlling the air duct switch section 12, and starts driving the operation of drying the clothes by spouting the drying air into the drum 1 from the first blowoff opening 8 (S32). Then, the control section 170 determines if an amount of decrease ⁇ A_pp of the oscillating value A_pp per unit time (for example, for 10 minutes) is below the first predetermined value ⁇ A_pp1 (S33). Where the clothes in the drum 1 is drying appropriately without a problems and the clothes become lighter gradually, the oscillation value A_pp to be detected by the oscillation detection section 14 is reduced gradually. While the moisture is being removed from the clothes and the drying operation progresses, the drying operation continues under the conditions shown in Fig. 32 without having the amount of reduction ⁇ A_pp of the oscillation value A_pp per unit time reduced below the first oscillation value A_pp1 (YES in S33), and the drying operation continues under the conditions shown in S32.
  • the control section 170 controls the air duct switch section 12 to open the second air duct 11. Then, the drying operation is switched to dry clothes by spouting the drying air from the second blowoff opening 10 to the drum 1 (S34).
  • the control section 170 determines that the clothes at both sides of the first blowoff opening 8 and the second blowoff opening 10 are dried evenly without having an irregular drying state (i.e., all the clothes in the drum), thereby terminating the drying operations.
  • an impact to the drum 1 when the clothes drop also differs.
  • the cloth amount detection section 15 detects the amount of the clothes in the drum 1 to adjust the first predetermined value ⁇ A_pp1 and the second predetermined value ⁇ A_pp2 according to the amount of clothes as detected. Namely, the larger is the amount of the clothes in the drum 1, the larger is the oscillation value A_pp to be detected by the oscillation detection section 14, and therefore the first predetermined value ⁇ A_pp1 and the second predetermined value ⁇ A_pp2 are set larger.
  • the predetermined values for the clothes in an amount of from 4 kg to 5 kg can be set to ⁇ A_pp1x 0.9 and ⁇ A_pp2 x 0.9
  • those for the clothes in an amount of from 3 kg to 4 kg can be set to ⁇ A_pp1x 0.8 and ⁇ A_pp2 x 0.8
  • those for the clothes in an amount of from 2 kg to 3 kg can be set to ⁇ A_pp1x 0.7 and ⁇ A_pp2 x 0.7
  • those for the clothes in an amount of from 1 kg to 2 kg can be set to ⁇ A_pp1x 0.6 and ⁇ A_pp2 x 0.6
  • those for the predetermined values for the clothes in an amount of from 4 kg can be set to ⁇ A_pp1x 0.6 and ⁇ A_pp2 x 0.6
  • those for the predetermined values for the clothes in an amount of from 4 kg to 5 kg can be set to ⁇ A_pp1x 0.9 and ⁇ A_pp2 x 0.9
  • the foregoing adjustment of the first and second predetermined values ⁇ A-pp1 and ⁇ A_pp2 according to the amount of the clothes stored in the drum 1 are executed by the control section 170 based on the results of detection of the cloth amount detection section 15. Before carrying out washing, the cloth amount detection section 15 detects the amount of the clothes (total weight) to be placed in the drum 1.
  • the cloth amount detection section 15 detects an amount of the clothes set in the drum 1 based on the difference between i) the position of the shaft of the dumper 34 in the state where the barrel housing 2 is empty without water (the drum 1 is empty without clothes), and ii) the position of the shaft of the dumper 34 in the state where the barrel housing 2 is empty without water directly before introducing therein water for the start of washing, but the drum 1 has clothes set therein. Then, based on the result of detection of the cloth amount detection section 15, the entanglement detection section 20 of the control section 70 adjusts the predetermined values ⁇ V 1 and ⁇ V 2 as described above.
  • the control section 170 adjusts the predetermined values ⁇ A_pp1and ⁇ A_pp2. Then, the control operation shown in the flowchart of Fig. 13 is executed.
  • the control operation shown in the flowchart of Fig. 13 is executed.
  • the cloth amount detection section 15 As the cloth amount detection section 15, explanations have been given through the case of detecting changes in amount of displacement in up and down direction of the axis of the dumper 34.
  • the present invention is not intended to be limited to this.
  • a cloth amount detection section which detects a rotational speed, driving current, and the amount of the variation of the torque etc. of the drum drive motor 3 that rotates the drum 1 may be adopted, and which detects an amount of the clothes in the drum based on variations in load of the drum drive motor 3.
  • the control section 170 automatically changes the first and second predetermined values ⁇ A 1 and ⁇ A 2 based on a result of detection by the cloth amount detection section 15.
  • the control section 170 adjusts the predetermined values ⁇ A_pp1 and ⁇ A_pp2 based on the input by the user.
  • the first air duct 9 or the second air duct 11 is selected without specifying neither of the airflow quantity and the velocity of the air.
  • the basic structure of the drum-type washing and drying machine) of the present embodiment is the same as those of the first and second embodiment shown in Figs. 1 , 9 and 11 .
  • explanations will be given mainly on the structures different from those of the first and second embodiments.
  • the first blowoff opening 8 of the first air duct 9 has a larger cross-sectional blowing area than that of the second blowoff opening 10, and therefore, the drying air of larger airflow quantity than that from the second air duct 11 can spout into the drum 1 with smaller loss in pressure.
  • the second blowoff opening 10 of the second air duct 11 has a smaller cross-sectional blowing area than that of the first blowoff opening 8, and therefore, the drying air of higher pressure and higher speed than that from the second air duct 11 can spout into the drum 1.
  • the space between the front side of the drum 1 that rotates and the barrel housing 2 is formed to be minimized to avoid the clothes from being caught. Therefore, it is difficult in terms of space to provide the large blowoff opening with small loss in pressure in such a small space.
  • the second blowoff opening 10 with relatively small cross-sectional blowing area, which spouts air at high pressure and high speed.
  • the blowing fan 4a of the blower section 4 is driven in such a manner that the airflow quantity of the drying air which passes the first air duct 9 is of a larger airflow quantity than that of the second air duct 11.
  • the blowing fan 4a of the blower section 4 is driven in such a manner that the drying air spouted from the second blowoff opening 10 of the second air duct 11 is of a predetermined speed that is higher than that of the drying air spouted from the first blowoff opening 8.
  • the velocity of the air that spouted from the first blowoff opening can be set to around 10 m/s, and the velocity of the air that spouted from the second blowoff opening 10 can be set to around 50 m/s or above.
  • the velocity of the air spouted from the first blowoff section 8 or the second blowoff section 10 is not limited to the above as long as the velocity of the air that spouted from the second blowoff section 10 is higher than that of the air from the first blowoff section 8.
  • the air that passes through the first air duct 9 is of larger airflow quantity than that passes through the second air duct 11, the velocity of the air that spouted from the second blowoff section 10 of the second air duct 11 is higher than that from the first blowoff section 8, and based on the result of detection by the oscillation detection section in the drying process, it is switched between the first air duct 9 and the second air duct 11 by the air duct switch section 12.
  • the discharge opening 5 is provided at position more away from the first blowoff opening 8 than from the second blowoff opening 10 (i.e., the discharge opening 5 is formed at position closer to the second blowoff opening 10 than to the first blowoff opening 8). Therefore, the discharge opening 5 is formed at position more to the front half than the back half.
  • the discharge opening 5 may be provided in a vicinity of the second blowoff opening 10 at the front side of the drum 1 at position most away from the first blowoff opening 8 among positions where the discharge opening 5 can be formed.
  • the discharge opening 5 As described, by forming the discharge opening 5 at position closer to the second discharge opening 10 at the front side of the drum 1 and to be away from the first blowoff opening 8, a longer distance can be ensured between the first blowoff opening 8 and the discharge opening 5. As a result, while the air is spouting from the first blowoff opening 8 provided at the back side of the drum 1, the drying air from the first blowoff opening 8 can be widely spread over the space in the drum 1. As a result, it is possible to make the clothes contact the drying air in the drum 1 in an efficient manner, and to dry the clothes using small power consumption.
  • the drying air from the first blowoff opening 8 can be widely spread over the space in the drum 1. It is therefore possible to make the clothes contact the drying air in the drum 1 in an efficient manner, and to dry the clothes using small power consumption.
  • the drying air at high pressure and high speed spouted from the second blowoff opening 10.
  • the drying air can reach entire space from the front to the back in the drum 1.
  • a desirable contact between the drying air and the clothes is not disturbed, thereby maintaining the effect of stretching the wrinkles by spouting drying air at high pressure and high speed.
  • the second blowoff opening 10 is formed in the front upper portion in the drum 1. Therefore, it is possible to spout the drying air from the second blowoff opening 10 at high pressure and high speed effectively against the moving clothes as being lifted up with the rotations of the drum 1, thereby effectively reducing the wrinkles of the clothes.
  • Fig. 14 is a flowchart showing the operation of switching the air duct in accordance with the third embodiment.
  • the flowchart of Fig. 14 differs from that of the second embodiment shown in Fig. 13 in the drying conditions in S32 and S34. Namely, in the third embodiment, the drying process is carried out under the conditions of S32' and S34' in Fig. 14 in replace of the conditions of S32 and S34 of Fig. 13 .
  • the control section 170 sets the conditions of carrying out the drying operation to use the first air duct 9 having a larger cross-sectional blowing area with small loss in pressure, so that the drying air of large airflow quantity with low velocity is spouted from the first blowoff opening 8 formed at the back of the drum 1 (S32'). Namely, the control section 170 controls the air duct switch section 12 to open the first air duct 9 and sets the number of rotations of the blower fan motor 4a to relatively low.
  • the control section 170 sets the conditions for carrying out the drying process to spout the drying air at high pressure and high speed from the second blowoff opening 10 having a smaller cross-sectional blowing area than the first blowoff opening 8 by rotating the blower fan motor 4b at high speed (S34'). Namely, the control section 170 controls the air duct switch section 12 to open the second air duct 11, and the blower section 4 to increase the number of rotations of the blower fan motor 4b. In this case, it is possible to reduce the wrinkles of the clothes effectively by the air at high pressure and high speed.
  • a drying machine in accordance with one aspect of the present invention includes: a drum for storing clothes to be dried; a drum drive section for rotatably driving said drum; a blower section for blowing drying air into said drum; a first air duct with a first blowoff opening which is opened at a rear side of said drum; a second air duct with a second blowoff opening which is opened at a front side of said drum; an air duct switch section which selectively switches between said first air duct and said second air duct; an oscillation detection section which detects an oscillation of said drum; and a control section which controls the air duct switch section based on a result of detection by said oscillation detection section to selectively switch between the first air duct and the second air duct in a drying process.
  • the air duct for spouting drying air into the drum which stores clothes two air ducts of the first air duct and the second air duct are provided, to be selectively switched by the air duct switch section. Then, the drying operation is performed using either the first air duct or the second air duct as selected.
  • the weight of the clothes becomes lighter gradually. As a result, an impact to the drum (an oscillation value detected by the oscillation detection section) when the clothes are dropped in the drum is reduced gradually.
  • the control section controls the air duct switch section to switch the air duct to the second air duct when an amount of reduction or a ratio of reduction per unit time of the oscillation value detected by said oscillation detection section is reduced below the first predetermined value.
  • an oscillation value detected by the oscillation detection section is reduced again, to be smaller than the second predetermined value which is smaller than the first predetermined value, it can be determined that both the closes on the side of the first blowoff opening and the side of the second blowoff opening (all the clothes in the drum) have been dried to a sufficient level. As a result, it is possible to determine the timing of terminating the drying operation with high precision.
  • a cloth amount detection section which detects an amount of clothes in the drum, wherein said control section sets the first predetermined value or the second predetermined value according to an amount of clothes detected by said cloth amount detection section.
  • the amount of clothes in the drum is detected by the cloth amount detection section to set the first determined value and the second determined value according to the amount of clothes detected.
  • the larger is the amount of the clothes in the drum the larger is the oscillation value to be detected by the oscillation detection section, and therefore the first predetermined value and the second predetermined value are set larger.
  • the smaller is the amount of the clothes in the drum the smaller is the first predetermined value and the second predetermined value.
  • said first blowoff opening has a larger cross-sectional blowing area than that of said second blowoff opening, wherein said blower section blows drying air into said drum in such a manner than when said first air duct is selected, drying air of larger airflow quantity is spouted from said first blowoff opening into the drum than that in the case of selecting the second air duct, while when said second air duct is selected, drying air of higher pressure and higher speed is spouted from said second blowoff opening into the drum than that in the case of selecting said first air duct.
  • the first blowoff opening has a larger cross-sectional blowing area than that of said second blowoff opening and has small loss in pressure. Then, when the first air duct is selected, drying air of larger airflow quantity spouted into the storage room from the first blowoff opening which is opened at the rare side of the storage room. In this case, since the first air duct has small loss in pressure, it is possible to generate air in large airflow quantity even when drying the blower section at relatively small power consumption. By spouting air in large airflow quantity, the drying time can be reduced with smaller power consumption.
  • the second blowoff opening of the second air duct has a smaller cross-sectional blowing area than that of said first blowoff opening.
  • the drying air of higher pressure and higher speed is blown into the storage room from the second blowoff opening which is opened at the front side of the storage section.
  • the clothes long sleeved clothes which are liable to be biased to the front side of the storage section
  • a washing and drying machine in accordance with the present invention includes the drying machine of any of the foregoing structure, and a water tank for storing washing water, which houses the storage section.
  • the present invention is not limited to this, and is applicable to the drying machine without the washing functions, and may adopt the structures of the drum-type washing and drying machine shown in Fig. 1 excluding the washing functions.
  • the barrel housing 2 which serves as a water tank shown in Fig. 1 , is not necessarily to be connected to the feed duct or the discharge duct 40, and therefore may be formed simply as a housing of the drum 1 not as a water tank.
  • those of the drum-type washing and drying machine shown in Fig. 1 may be adopted.
  • a drying machine and the washing and drying machine of the present invention is widely applicable not only to a domestic drum-type drying machine or washing and drying machine but also to a business use drum-type drying machine or washing and drying machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Claims (11)

  1. Machine à sécher comprenant:
    un tambour (1) pour stocker des vêtements à sécher; et
    une section d'entraînement du tambour (3) pour entraîner de façon rotative ledit tambour (1); caractérisée en ce que:
    la machine à sécher comprend en plus:
    une section de détermination d'emmêlement (2) pour déterminer si un emmêlement de vêtements s'est produit dans ledit tambour (1);
    un premier conduit d'air (9) avec une première ouverture de vidange (8) qui est ouverte vers ledit tambour (1);
    un deuxième conduit d'air (11) avec une deuxième ouverture de vidange (10) qui est ouverte vers ledit tambour (1), ladite deuxième ouverture de vidange (10) ayant une zone de ventilation en coupe transversale plus petite que celle de ladite première ouverture de vidange (8);
    une section de commutation de conduit d'air (12) qui commute de façon sélective entre ledit premier conduit d'air (9) et ledit deuxième conduit d'air (11);
    une section de soufflante (4) qui souffle de l'air de séchage dans ledit tambour (1) à partir de ladite première ouverture de vidange (8) quand ledit premier conduit d'air (9) est sélectionné pour souffler de l'air de séchage dans ledit tambour (1), et souffle de l'air de séchage dans ledit tambour (1) à partir de ladite deuxième ouverture de vidange (10) quand ledit deuxième conduit d'air (11) est sélectionné, ledit air de séchage de ladite première ouverture de vidange (8) ayant un débit d'air plus large que ledit air de séchage de ladite deuxième ouverture de vidange (10); et
    une section de contrôle (70) qui contrôle ladite section de commutation de conduit d'air (12) en fonction d'un résultat de détermination par ladite section de détermination d'emmêlement (2) afin de commuter de façon sélective entre ledit premier conduit d'air (9) et ledit deuxième conduit d'air (11) dans un procédé de séchage.
  2. Machine à sécher selon la revendication 1, caractérisée en ce que:
    ladite première ouverture de vidange (8) est ouverte sur un côté postérieur dudit tambour (1), et ladite deuxième ouverture de vidange (10) est ouverte sur un côté antérieur dudit tambour (1).
  3. Machine à sécher selon la revendication 1 ou 2, caractérisée en ce que:
    lorsque ladite section de détermination d'emmêlement (2) détermine que l'emmêlement de vêtements s'est produit, ladite section de contrôle (70) contrôle ladite section de commutation de conduit d'air (12) pour commuter le conduit d'air audit deuxième conduit d'air (11).
  4. Machine à sécher selon l'une quelconque des revendications 1 à 3, caractérisée en ce que:
    lorsque ladite section de détermination d'emmêlement (2) détermine qu'il n'y a pas d'emmêlement de vêtements, ladite section de contrôle (70) contrôle ladite section de commutation de conduit d'air (12) pour commuter le conduit d'air audit premier conduit d'air (9).
  5. Machine à sécher selon l'une quelconque des revendications 1 à 4, caractérisée en ce qu'elle comprend en outre:
    une section de détection d'oscillation (14) pour détecter une oscillation dudit tambour (1),
    où ladite section de détermination d'emmêlement (2) détermine qu'un emmêlement de vêtements s'est produit quand une valeur de sortie de ladite section de détection d'oscillation (14) est augmentée de pas moins d'une première valeur prédéterminée, et détermine que l'emmêlement de vêtements a été défait quand une valeur de sortie de ladite section de détection d'oscillation est réduite de pas moins d'une deuxième valeur prédéterminée.
  6. Machine à sécher selon la revendication 5, caractérisée en ce que:
    ladite section de détermination d'emmêlement (2) réduit la première valeur prédéterminée et ladite deuxième valeur prédéterminée à mesure que le temps passe dans le procédé de séchage.
  7. Machine à sécher selon la revendication 6, caractérisée en ce qu'elle comprend en outre:
    une section de détection de quantité de tissu (15) qui détecte une quantité de vêtements dans ledit tambour (1),
    où ladite section de détermination d'emmêlement (2) change un intervalle de temps pour réduire la première valeur prédéterminée et la deuxième valeur prédéterminée pas à pas conformément à une quantité de vêtements détectée par ladite section de détection de quantité de tissu (15).
  8. Machine à sécher selon l'une quelconque des revendications 5 à 7, caractérisée en ce qu'elle comprend en outre:
    une section de détection de quantité de tissu (15) qui détecte une quantité de vêtements dans ledit tambour (1),
    où ladite section de détermination d'emmêlement (2) établit la première valeur prédéterminée et la deuxième valeur prédéterminée en fonction d'une quantité des vêtements détectée par la section de détection de quantité de tissu (15).
  9. Machine à sécher selon l'une quelconque des revendications 5 à 8, caractérisée en ce que ladite section de détection d'oscillation (14) est un capteur d'accélération.
  10. Machine à sécher selon l'une quelconque des revendications 5 à 8, caractérisée en ce que ladite section de détection d'oscillation (14) est un capteur de vitesse angulaire.
  11. Machine à laver et à sécher, caractérisée en ce qu'elle comprend:
    une machine à sécher selon l'une quelconque des revendications 1 à 10; et
    un réservoir à eau (2) pour stocker de l'eau de lavage, où ledit réservoir à eau (2) contient ledit tambour (1).
EP10187484.0A 2009-10-16 2010-10-14 Séchoir et machine à laver et à sécher Not-in-force EP2312047B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11174377.9A EP2400053B1 (fr) 2009-10-16 2010-10-14 Séchoir et machine à laver et à sécher

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009238910A JP2011083458A (ja) 2009-10-16 2009-10-16 衣類乾燥機および洗濯乾燥機
JP2009238908A JP2011083456A (ja) 2009-10-16 2009-10-16 衣類乾燥機および洗濯乾燥機

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP11174377.9A Division EP2400053B1 (fr) 2009-10-16 2010-10-14 Séchoir et machine à laver et à sécher
EP11174377.9A Division-Into EP2400053B1 (fr) 2009-10-16 2010-10-14 Séchoir et machine à laver et à sécher

Publications (2)

Publication Number Publication Date
EP2312047A1 EP2312047A1 (fr) 2011-04-20
EP2312047B1 true EP2312047B1 (fr) 2016-07-06

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EP10187484.0A Not-in-force EP2312047B1 (fr) 2009-10-16 2010-10-14 Séchoir et machine à laver et à sécher
EP11174377.9A Not-in-force EP2400053B1 (fr) 2009-10-16 2010-10-14 Séchoir et machine à laver et à sécher

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CN (1) CN102041669B (fr)

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DE102013215675A1 (de) * 2013-08-08 2015-02-12 BSH Bosch und Siemens Hausgeräte GmbH Betreiben eines Wäschetrocknungsgeräts mit horizontal drehbarer Wäschetrommel
CN107723992B (zh) * 2016-08-11 2021-10-29 青岛海尔洗涤电器有限公司 一种直接驱动式洗涤装置
EP3339499B1 (fr) * 2016-12-22 2019-10-23 Electrolux Appliances Aktiebolag Seche-linge equipee avec un ensemble de porte
CN109402990B (zh) * 2017-08-18 2022-04-22 青岛海尔滚筒洗衣机有限公司 衣物处理方法及衣物处理装置
CN112941801B (zh) * 2019-12-10 2023-11-17 博西华电器（江苏）有限公司 衣物处理设备及操作其的方法和装置

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JP3093548B2 (ja) 1993-12-28 2000-10-03 株式会社東芝 衣類乾燥機
AU2003295855A1 (en) * 2002-11-22 2004-06-18 Su Heon Kim Fast clothes dryer and drying method
CN1963009A (zh) * 2005-11-08 2007-05-16 乐金电子(天津)电器有限公司 干燥兼用滚筒洗衣机及其控制方法
JP4711914B2 (ja) * 2006-08-31 2011-06-29 日立アプライアンス株式会社 ドラム式洗濯機
JP4855324B2 (ja) 2007-04-10 2012-01-18 シャープ株式会社 ドラム式洗濯乾燥機
JP4737242B2 (ja) * 2008-07-10 2011-07-27 パナソニック株式会社 ドラム式洗濯乾燥機
JP5108800B2 (ja) * 2009-01-29 2012-12-26 日立アプライアンス株式会社 洗濯乾燥機および乾燥機

Also Published As

Publication number Publication date
EP2400053A1 (fr) 2011-12-28
EP2400053B1 (fr) 2015-02-11
CN102041669B (zh) 2012-12-26
CN102041669A (zh) 2011-05-04
EP2312047A1 (fr) 2011-04-20

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