EP2128322B1 - Machine à laver à tambour et procédé de nettoyage du tambour - Google Patents

Machine à laver à tambour et procédé de nettoyage du tambour Download PDF

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Publication number
EP2128322B1
EP2128322B1 EP09156313.0A EP09156313A EP2128322B1 EP 2128322 B1 EP2128322 B1 EP 2128322B1 EP 09156313 A EP09156313 A EP 09156313A EP 2128322 B1 EP2128322 B1 EP 2128322B1
Authority
EP
European Patent Office
Prior art keywords
washing
drum
water
tub
cycle
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.)
Expired - Fee Related
Application number
EP09156313.0A
Other languages
German (de)
English (en)
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EP2128322A1 (fr
Inventor
In Ju Lee
Jong Sung Park
Jung Soo Lim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 KR1020080050853A external-priority patent/KR20090124565A/ko
Priority claimed from KR1020080094117A external-priority patent/KR20100034898A/ko
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP2128322A1 publication Critical patent/EP2128322A1/fr
Application granted granted Critical
Publication of EP2128322B1 publication Critical patent/EP2128322B1/fr
Expired - Fee Related 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs

Definitions

  • the above drum washing machine rotates the drum according to a control signal outputted from a control unit, after laundry and a detergent have been put into the drum, to automatically carry out a washing cycle, a rinsing cycle, and a dehydrating cycle for a designated time, thus washing the laundry.
  • the drum washing machine employs a method, in which a tank (i.e., the drum and the tub) washing detergent is put into the drum to periodically perform a tank washing cycle, or a method in which a contamination level of the drum and the tub is detected and thus a tank washing cycle is performed when the detected contamination level is more than a designated level, that removes various contaminants remaining on the inner and outer walls of the drum and the inner wall of the tub, thus preventing the re-contamination of the drum and the tub.
  • a tank i.e., the drum and the tub
  • a tank washing cycle is performed when the detected contamination level is more than a designated level
  • the contamination level of the rear surface of the drum is continuously increased, and the increased contamination of the rear surface of the drum provides an environment in which microorganisms can propagate, and causes a bad smell due to the contamination and secondary contamination due to the washing of laundry.
  • Document JP 2005 065 923 A relates to a washing machine, wherein during the rotation of a rotating drum, water discharged from the drum is reflected from a drain ditch and returned to the side of the rotating drum, in order to clean the outer circumferential wall of the rotating drum. It is the technical disadvantage that by the reflected water, only the side surface of the rotating drum can be washed, wherein, from the rear surface bacteria or other contaminants cannot be removed. In order to remove the bacteria and contaminants from the rear surface of the rotating drum, the washing machine has to be disassembled.
  • Document GB 2 432 577 A describes a dispensing apparatus for automatically dispensing a suitable quantity of a laundry substance.
  • one aspect is to provide a washing machine, which prevents the generation of a microorganism propagating environment due to the contamination of a drum, the generation of a bad smell due to the contamination, and the generation of secondary contamination due to the washing of laundry, and a method of controlling the washing machine.
  • Another aspect is to provide a washing machine, which washes a tub and a drum using water used in a washing or rinsing cycle, and washes the tub and the drum simultaneously with the washing, rinsing, or dehydrating cycle, and thus reduces the amount of water, power, and time required to wash the tub and the drum, and a method of controlling the washing machine.
  • a washing machine including a drum configured to receive articles to be washed; a washing device configured to spray water to perform the washing of an outer surface of the drum; and a control unit controlling the washing of the outer surface of the drum such that the washing of the outer surface of the drum is performed during a washing or rinsing cycle.
  • the washing machine may further include a tub provided at an outside of the drum, and the washing device may be connected to the tub and may spray the water to a rear surface of the drum.
  • the washing device may include a nozzle to adjust a spraying direction of the water; and the nozzle may face a center of the rear surface of the drum.
  • the washing machine may further include a circulation device to circulate water in the tub, and the washing device may be connected to the circulation device and spray a portion of the circulated water.
  • the control unit may control the washing of the drum such that the washing of the drum is performed during a dehydrating cycle.
  • the washing machine may further include a water level sensing unit sensing a level of water in the tub, and the control unit may perform a draining cycle until the level of water in the tub is sensed to have reached a designated level and stop the draining cycle and perform the dehydrating cycle when the level of water in the tub is sensed to have reached the designated level.
  • the washing machine may further include a water supply device to supply water, and the control unit may control the water supply device such that a designated level of water is supplied to the tub after a draining cycle has been completed.
  • the washing machine may further include a water supply device to supply water, and the washing device may be connected to the water supply device and spray the supplied water.
  • the washing machine may further include a flange shaft connected to a rear surface of the drum; and a plurality of ribs protruded from the flange shaft and continuously extended from a center of the flange shaft in a radial direction of the drum to form channels on the flange shaft.
  • the washing machine may further include a tub receiving water; the drum installed in the tub; and the washing device installed between the tub and the drum to perform washing of the drum.
  • a method of controlling a washing machine having a tub to contain water and a drum provided in the tub including performing a washing or rinsing cycle by circulating the water in the tub; and performing washing of an outer surface of the drum using a portion of the circulated water during the washing or rinsing cycle.
  • the washing of the drum may be performed by spraying the portion of the circulated water to a rear surface of the drum.
  • the method may further include performing a draining cycle to drain the water in the tub; and performing a dehydrating cycle when the level of the water in the tub is sensed to have reached a designated level, the washing of the drum being performed during the dehydrating cycle.
  • the method may further include draining the water in the tub; additionally supplying water to the tub when the draining has been completed; and performing a dehydrating cycle when the level of the water in the tub is sensed to have reached a designated level, the washing of the drum being performed during the dehydrating cycle.
  • the method may further include performing washing of an outer surface of the drum during the washing, rinsing, or dehydrating cycle, the washing of the drum being performed by washing the outer surface of the drum with water supplied from the water supply device using a washing device connected to the water supply device.
  • FIG. 1 is a schematic view of a drum washing machine in accordance with a first embodiment.
  • the drum washing machine in this embodiment includes a main body 10, a door 11, a tub 20, a motor 21, a drum 30, a channel pipe 41, a circulation pump 42, a circulation pipe 43, a circulation valve 44, a first washing pipe 61, a first nozzle 62, a first washing valve 63, a drain pipe 45, a water supply pipe 51, and a water supply valve 52.
  • the main body 10 forms an external appearance of the drum washing machine, and is provided with an opening through which laundry can be put into or taken out of the drum washing machine.
  • the door 11 to open and close the opening is installed at a portion of the main body 10 provided with the opening, and a diaphragm 12 to tightly close a gap between the door 11 and the opening is installed on the inner circumferential surface of the opening.
  • the tub 20 is fixedly installed in the main body 10 and receives water supplied from a water supply device.
  • the drum 30, having a shape corresponding to a shape of the tub 20, is installed in the tub 20, and the motor 21 to rotate the drum 30 in the clockwise or counterclockwise direction is installed at an outside of the tub 20.
  • a hole (not shown) is formed through a rear surface of the tub 20, and the first nozzle 62 of a washing device is inserted into the hole such that water sprayed through the first nozzle 62 can reach the rear surface of the drum 30.
  • the drum 30 is rotatably installed in the tub 20. One end of the drum 30 is opened, and the opened end of the drum 30 is located toward the opening of the main body 10. Here, when the door 11 installed at the opening of the main body 10 is opened, laundry is put into the drum 30 through the opened end of the drum 30. Now, the drum 30 will be described in detail with reference to FIGS. 2A and 2B .
  • a plurality of holes 31 is formed through the circumferential surface of the drum 30, and washing water (i.e., water) flows into the drum 30 through the plurality of holes 31.
  • a flange shaft 32 and a rotary shaft 33 are provided on the rear surface of the drum 30. One end of the rotary shaft 33 is connected to the center of the flange shaft 32, and the other end of the rotary shaft 33 is extended to the outside of the tub 20 and connected to the motor 21 at the outside of the tub 20.
  • the flange shaft 32 includes a plurality of blades (i.e., radial blades) extended from the center of the flange shaft 32, to which the rotary shaft 33 is connected, in a radial direction of the drum 30.
  • the respective tips of the blades are fixed to the drum 30 through fixtures, such as bolts, for example, but is not limited thereto and may be any type of fixing device that fixes the blades to the drum.
  • a plurality of holes 31 is formed through the circumferential surface of the drum 30, and washing water (i.e., water) flows into the drum 30 through the plurality of holes 31.
  • a flange shaft 32 and a rotary shaft 33 are provided on the rear surface of the drum 30. One end of the rotary shaft 33 is connected to the center of the flange shaft 32, and the other end of the rotary shaft 33 is extended to the outside of the tub 20 and connected to the motor 21 at the outside of the tub 20.
  • the flange shaft 32 serves to uniformly disperse the rotary force of the rotary shaft 33, and includes a plurality of radial blades 32a, 32b, and 32c extended from the center of the flange shaft 32, to which the rotary shaft 33 is connected, in a radial direction of the drum 30.
  • the respective tips of the radial blades 32a, 32b, and 32c are fixed to the drum 30 through fixtures, such as bolts, for example. Therefore, when the rotary shaft 33 is rotated by the rotation of the motor 21, the flange shaft 32 connected to the rotary shaft 33 is rotated, and then the drum 30 connected to the flange shaft 32 is rotated, thus washing, rinsing, and dehydrating the laundry in the drum 30.
  • Ribs 34 which increase the strength of the flange shaft 32, are respectively provided on the radial blades 32a, 32b, and 32c.
  • a plurality of the ribs 34 may be formed on each of the radial blades 32a, 32b, and 32c.
  • the ribs 34 are protruded from inner surfaces of the respective radial blades 32a, 32b, and 32c, and are extended from the center of the flange shaft 32 in the radial direction of the drum 30, which is the same as the extension direction of the respective blades 32a, 32b, and 32c.
  • Channels 35 are formed on the flange shaft 32 by the ribs 34, and water flowing in the flange shaft 32 in the washing and rinsing cycles flows along the channels 35 formed by the ribs 34.
  • the ribs 34 formed in the same direction as the respective blades 32a, 32b, and 32c of the flange shaft 32 increase the strength of the flange shaft 32 and form the channels 35 in which water flows in the flange shaft 32 to reduce the remaining contaminants on the flange shaft 32 and to easily remove the contaminants remaining on the flange shaft 32 to enhance the washability of the flange shaft 32.
  • the water flowing in the flange shaft 32 is water sprayed onto the rear surface of the drum 30 through a washing device 60 (shown in FIG. 4 ).
  • the contaminants remaining on the flange shaft 32 are minimized, thus preventing the generation of a bad smell due to bacteria and mold.
  • the washing of the rear surface of the drum 30 is easily performed under the condition that the washing machine is not disassembled, and thus the washing machine maintains sanitary conditions.
  • a circulation device 40 (shown in FIG. 4 ) supplies the water in the tub 20 to the outside of the tub 20, and then re-supplies the water to the insides of the tub 20 and the drum 30. That is, the circulation device 40 circulates water to the insides of the tub 20 and the drum 30, and thus allows the laundry to be uniformly soaked and be washed and rinsed with a small amount of water.
  • the circulation device 40 includes a circulation pump 42 to pump water discharged through the channel pipe 41 formed under the tub 20, the circulation pipe 43 to inhale the water discharged downwardly from the tub 20 and discharge the inhaled water again to supply the water to the insides of the tub 20 and the drum 30, and the circulation valve 44 to shut out the water supplied to the circulation pipe 43.
  • the circulation pump 42 serves to perform a pumping action such that the water supplied to the inside of the circulation pump 42 is discharged again to the outside of the circulation pump 42, and the water discharged from the circulation pump 42 is raised along the circulation pipe 43 and is supplied again to the side surface of the tub 20.
  • the circulation pump 42 may simultaneously serve as a drain pump to drain the water after the washing or rinsing cycle has been completed. That is, in case that the circulation pump 42 simultaneously serves as a drain pump, the circulation pump 42 pumps the water contained in the tub 20, and then opens a drain valve 46 connected to the circulation pump 42, thus discharging the pumped water to the outside of the main body 10 through the drain pipe 45. On the other hand, in case that the circulation pump 42 does not serve as a drain pump, a separate drain pump, which drains water after the washing or rinsing cycle has been completed, is further provided.
  • the circulation device 40 operates the circulation pump 42 during the washing or rinsing cycle such that the pumped water can be sprayed to the rear surface of the drum 30 and the flange shaft 32 through the first washing pipe 61, and thus removes contaminants remaining on the rear surface of the drum 30 and the flange shaft 32 during the washing or rinsing cycle.
  • the circulation device 40 pumps the water in the tub 20 simultaneously with the dehydrating cycle such that the pumped water can be supplied to the first washing pipe 61, and thus removes residue of the detergent, mold, and foreign substances remaining on the rear surface of the drum 30 and the flange shaft 32 through the first nozzle 62 installed on the rear surface of the drum 30.
  • a water supply device 50 (shown in FIG. 4 ) supplies water to the insides of the tub 20 and the drum 30, and includes the water supply pipe 51 and the water supply valve 52.
  • the water supply valve 52 of the water supply device 50 is connected to an external water pipe (not shown), and is opened in the washing and rinsing cycles to supply water to the insides of the tub 20 and the drum 30.
  • the water supply pipe 51 of the water supply device 50 is connected to a detergent box 53, and allows detergent to be supplied to the inside of the drum 30 through the detergent box 53 when the water is supplied to the drum 30 through the water supply pipe 51.
  • the water supply device 50 supplies water to a designated level in the tub 20 after the draining cycle has been completed, and the supplied water is sprayed to the rear surface of the tub 20 through the first washing pipe 61 according to the operation of the circulation pump 42.
  • the washing device 60 is installed in the hole formed through the rear surface of the tub 20, and sprays water to the rear surface of the drum 30, thus removing the residue of the detergent, the mold, and the foreign substances remaining on the rear surface of the drum 30.
  • the washing device 60 includes the first washing pipe 61 provided with one end connected to the circulation pump 42 and the other end facing the rear surface of the tub 20, the first nozzle 62 provided with one end connected to the other end of the first washing pipe 61 and the other end of the first nozzle 62 inserted into the rear surface of the tub 20 to spray water toward the flange shaft 32, and the first washing valve 63 provided in the first washing pipe 61 to shut out the water supplied to the first nozzle 62.
  • the first nozzle 62 may be installed at a position that does not interfere with a rotating body including the motor 21 on the rear surface of the tub 20, and the spray angle or spray hole of the first nozzle 62 is set such that the first nozzle 62 can spray water to a wide region from an outermost portion of the flange shaft 32 to the center of the rotary shaft 33.
  • At least one washing device 60 including the first washing pipe 61, the first nozzle 62, and the first washing valve 63 is provided.
  • washing devices 60 it is possible to spray water to the rear surface of the tub 20 under the condition that the rotation of the drum 30 is stopped.
  • FIG. 3 is a schematic view of a drum washing machine in accordance with a second embodiment.
  • the drum washing machine of the second embodiment differs from the drum washing machine of the first embodiment, as shown in FIG. 1 , in that the drum washing machine of the second embodiment includes a washing device 60 connected to the water supply pipe 51 of the water supply device 50, instead of the washing device 60 connected to the circulation pump 42, and thus a detailed description of other elements 10, 20, and 30 of the drum washing machine of the second embodiment, which are the same as those of the drum washing machine of the first embodiment, will be omitted.
  • the circulation device 40 operates the circulation pump 42 and opens the circulation valve 44 when the washing or rinsing cycle is performed, thus circulating the water in the tub 20 through the circulation pipe 43.
  • the water supply device 50 supplies water to the inside of the tub 20 in the washing or rinsing cycle and allows the supplied water to be sprayed to the rear surface of the drum 30 and the flange shaft 32 through a second washing pipe 64 connected to the water supply pipe 51 during the washing or rinsing cycle, thus removing foreign substances remaining on the rear surface of the drum 30 and the flange shaft 32.
  • the water supply device 50 supplies water to the water supply pipe 51 and opens a second washing valve 66 connected to the water supply pipe 51 simultaneously with the dehydrating cycle such that the supplied water is sprayed to the rear surface of the drum 30 and the flange shaft 32 through the second washing pipe 64, thus removing mold, residue of the detergent, foreign substances remaining on the rear surface of the drum 30 and the flange shaft 32, etc.
  • the washing device 60 includes the second washing pipe 64 provided with one end connected to the water supply pipe 51 of the water supply device 50 and the other end facing the rear surface of the tub 20, a second nozzle 65 provided with one end connected to the other end of the second washing pipe 64 and the other end inserted into the hole formed through the rear surface of the tub 20, and the second washing valve 66 to shut out the water supplied from the second washing pipe 64 to the second nozzle 65.
  • the second washing pipe 64 may be connected directly to the water supply valve 52 without using the second washing valve 66 such that the water supplied to the second washing pipe 64 and the second nozzle 65 can be shut out by the operation of the water supply valve 52.
  • the second washing pipe 64 and the second nozzle 65 are installed such that they cannot interfere with a rotating body including the motor 21 on the rear surface of the tub 20, and the spray angle or the spray hole of the second nozzle 65 is set such that the second nozzle 65 can spray water to a wide region from the outermost portion of the flange shaft 32 to the center of the rotary shaft 33.
  • FIG. 4 is a block diagram of a control system of the drum washing machine in accordance with the first embodiment.
  • the control system includes the circulation device 40, the water supply device 50, the washing device 60, a control unit 70, and a water level sensing unit 80. Now, the control system will be described with reference to FIG. 1 .
  • the circulation device 40 operates the circulation pump 42 and opens the circulation valve 44 during the washing or rinsing cycle, and thus circulates the water pumped by the circulation pump 42 to the inside of the tub 20 through the circulation pipe 43. Further, the circulation device 40 operates the circulation pump 42 when the drum 30 is rotated, and thus sprays the water pumped by the circulation pump 42 to the rear surface of the tub 20 through the first washing pipe 61.
  • the circulation device 40 pumps the water in the tub 20 simultaneously with the dehydrating cycle, supplies the pumped water to the first washing pipe 61, and sprays the water through the first nozzle 62 installed on the rear surface of the tub 20.
  • the water sprayed to the rear surface of the tub 20 during the dehydrating cycle is remaining water during the dehydrating cycle or additionally supplied water after the dehydrating cycle.
  • the water supply device 50 supplies water, to be used to wash and rinse laundry in the washing and rinsing cycles, to the tub 20.
  • the water supply device 50 supplies a designated level of water, to be used to wash the rear surface of the drum 30 after the dehydrating cycle has been completed, to the tub 20.
  • the washing device 60 sprays the water pumped by the circulation pump 42 to the rear surface of the drum 30 and the flange shaft 32 according to the opening of the first washing valve 63, and thus removes residue of the detergent, mold, and foreign substances remaining on the rear surface of the drum 30 and the flange shaft 32.
  • the control unit 70 controls the operation of the water supply device 50 in the washing or rinsing cycle, and thus allows water to be used in the washing or rinsing cycle to be supplied to the inside of the tub 20.
  • the control unit 70 controls the operations of the circulation pump 42 and the circulation valve 44 during the washing or rinsing cycle to circulate the water in the tub 20 through the circulation pipe 43, and controls the operations of the circulation pump 42 and the first washing valve 63 when the drum 30 is rotated during the washing or rinsing cycle to spray water to the rear surface of the drum 30 through the first washing pipe 61.
  • the control unit 70 controls the operations of the circulation pump 42 and the first washing valve 63 during the dehydrating cycle to pump the water stored in the tub 20 and spray the pumped water to the rear surface of the tub 20 through the first washing pipe 61.
  • the control unit 70 controls the drain valve 46 after the washing or rinsing cycle has been completed to drain the water used in the washing or rinsing cycle.
  • the control unit 70 controls the water level sensing unit 80 to sense the level of the water in the tub 20.
  • control unit 70 controls the water level sensing unit 80 to sense the level of the remaining water in the tub 20 during the draining cycle or to sense the level of water additionally supplied to the tub 20 after the draining cycle has been completed.
  • the control unit 70 receives the level of the remaining water during the draining cycle or the level of water supplied from the water supply device 50 from the water level sensing unit 80, and compares the received level of the water in the tub 20 with a predetermined level.
  • the control unit 70 When it is determined that the level of the water in the tub 20 reaches the predetermined level, the control unit 70 performs the dehydrating cycle.
  • the water level sensing unit 80 senses the level of the water in the tub 20 in the dehydrating cycle, and then transmits the sensed level of the water to the control unit 70.
  • FIG. 5 is a block diagram of a control system of the drum washing machine in accordance with the second embodiment.
  • the control system includes the circulation device 40, the water supply device 50, the washing device 60, and a control unit 70. Now, the control system will be described with reference to FIG. 3 .
  • the circulation device 40 operates the circulation pump 42 and opens the circulation valve 44 during the washing or rinsing cycle, and thus circulates the water in the tub 20 through the circulation pipe 43.
  • the water supply device 50 supplies water to the inside of the tub 20 in the washing or rinsing cycle, and supplies water to the second washing pipe 64 connected to the water supply pipe 51 during the washing or rinsing cycle.
  • the water supply device 50 supplies water to the second washing pipe 64 connected to the water supply pipe 51 simultaneously with the dehydrating cycle, and thus sprays the water to the rear surface of the drum 30 and the flange shaft 32.
  • the control unit 70 controls the operations of the circulation pump 42 and the circulation valve 44 of the circulation device 40 during the respective washing or rinsing cycle, and thus circulates the water in the tub 20 through the circulation pipe 43.
  • the control unit 70 controls the operation of the second washing valve 66 connected to the water supply pipe 51 when the drum 30 is rotated during the respective washing or rinsing cycle, and thus sprays water to the rear surface of the drum 30 through the second washing pipe 64.
  • the control unit 70 controls the operation of the second washing valve 66 connected to the water supply pipe 51 during the dehydrating cycle, and thus sprays the water supplied from the water supply pipe 51 to the rear surface of the drum 30 through the second washing pipe 64.
  • the control unit 70 controls the operation of the drain valve 46 after the washing or rinsing cycle, and thus drains the water used in the washing or rinsing cycle.
  • FIG. 6 is a flow chart illustrating a method of controlling the drum washing machine in accordance with the first embodiment. The method will be described with reference to FIGS. 1 , 2A , 2B , and 4 .
  • water is supplied to the inside of the tub 20 through the water supply pipe 51 of the water supply device 50, and the washing or rinsing cycle is started using the supplied water.
  • the circulation pump 42 is operated to pump the water in the tub 20, and the circulation valve 44 is opened to supply the pumped water again to the inside of the tub 20 through the channel pipe 41 and the circulation pipe 43. Then, the circulation pump 42 is stopped, and the circulation valve 44 is closed.
  • the drum 30 is rotated and the washing or rinsing cycle of laundry in the drum 30 is performed using the water circulated by the circulation pump 42 (operation 101).
  • the circulation pump 42 and the first washing valve 63 are operated to supply the water in the tub 20 pumped by the circulation pump 42 to the nozzle 62 installed on the rear surface of the tub 20 through the channel pipe 41 and the first washing pipe 61, thus washing the rear surface of the drum 30 while soaking residue of the detergent and foreign substances remaining on the rear surface of the drum 30 (operation 102).
  • the operation of the circulation pump 42 to remove the foreign substances, etc. on the rear surface of the drum 30 may be periodically carried out after the operation of the circulation pump 42 to wash or rinse the laundry has been carried out at least one time.
  • the operation of the circulation pump 42 to wash or rinse the laundry is repeated three times, and then the operation of the circulation pump 42 to remove the foreign substances, etc. on the rear surface of the drum 30 is carried out one time.
  • the washing of the rear surface of the drum 30 may be performed for each of the washing cycle and plural rinsing cycles or for at least one cycle of the washing cycle, plural rinsing cycles, or dehydrating cycle, or be periodically performed according to the number of used times of the washing machine by a user.
  • the laundry in the drum 30 is washed or rinsed and the rear surface of the drum 30 is washed while the washing or rinsing of the laundry is performed, and thus residue of the detergent, mold, contaminants remaining on the rear surface of the drum 30 and the flange shaft 32 can be immediately removed.
  • the draining cycle is performed (operation 103).
  • the dehydrating cycle to dehydrate the laundry is performed and simultaneously, the circulation pump 42 is operated to pump the water in the tub 20 and the pumped water is supplied to the first washing pipe 61 and the first nozzle 62 to wash the rear surface of the drum 30 and the flange shaft 32 (operation 107).
  • the circulation pump 42 is operated under the condition that water remains in the tub 20, a designated level of water remains in the tub 20 during the draining cycle and then the draining cycle is stopped, or water is additionally supplied to the tub 20 after the draining cycle has been completed.
  • the water level sensor 80 senses the level of the water in the tub 20 from this point of time when the draining cycle is started, and the draining cycle is stopped when the sensed level reaches a predetermined level.
  • water is supplied from the water supply device 50 to the tub 20 (operation 104). Then, the level of the supplied water is sensed and is compared with the predetermined level (operation 105). When the sensed water reaches the predetermined level, the supply of water is stopped (operation 106). If the sensed water does not reach the predetermined level, water is continuously supplied until the water level is sensed to reach the designated level.
  • the water is sprayed to the drum 30, which is rotated at a dehydration speed. Since collision power generated when the rotary power of the drum 30 and the jet force of the water collide with each other is larger than that in the washing or rinsing cycle, it is possible to more effectively remove the contaminants on the rear surface of the drum 30.
  • FIG. 7 is a flow chart illustrating a method of controlling the drum washing machine in accordance with the second embodiment. The method will be described with reference to FIGS. 2A , 2B , 3 , and 5 .
  • water is supplied to the inside of the tub 20 through the water supply pipe 51 of the water supply device 50, and the washing or rinsing cycle is started using the supplied water.
  • the circulation pump 42 is operated to pump the water in the tub 20, and the circulation valve 44 is opened to supply the pumped water again to the inside of the tub 20 through the channel pipe 41 and the circulation pipe 43. Then, the circulation pump 42 is stopped, and the circulation valve 44 is closed.
  • the second washing valve 66 connected to the water supply pipe 51 is operated to spray the water to the rear surface of the drum 30 through the second washing pipe 64 and the second nozzle 65, thus washing the rear surface of the drum 30 while soaking residue of the detergent and foreign substances remaining on the rear surface of the drum 30 (operation 202).
  • the washing operation to remove the foreign substances, etc. on the rear surface of the drum 30 may be periodically carried out after the operation of the circulation pump 42 to wash or rinse the laundry has been carried out at least one time.
  • the operation of the circulation pump 42 to wash or rinse the laundry is repeated three times, and then the washing operation to remove the foreign substances, etc. on the rear surface of the drum 30 is carried out one time.
  • the washing of the rear surface of the drum 30 may be performed for each of the washing cycle and plural rinsing cycles or for at least one cycle of the washing cycle, plural rinsing cycles, or dehydrating cycle, or be periodically performed according to the number of used times of the washing machine by a user.
  • the laundry in the drum 30 is washed or rinsed and the rear surface of the drum 30 is washed while the washing or rinsing of the laundry is performed, and thus residue of the detergent, mold, contaminants remaining on the rear surface of the drum 30 and the flange shaft 32 can be immediately removed.
  • the draining cycle is performed (operation 203).
  • the dehydrating cycle to dehydrate the laundry is performed and simultaneously, the second washing valve 66 connected to the water supply pipe 51 is operated to spray water to the rear surface of the drum 30 through the second washing pipe 64 and the second nozzle 65, thus washing the rear surface of the drum 30 and the flange shaft 32 (operation 204).
  • the washing machine does not need to be disassembled to wash the drum and tub and thus is easily washed, and the washing method performs the washing of the drum for each of washing, rinsing, and dehydrating cycles and thus maintains sanitary conditions without leaving residue of the detergent and foreign substances. Thereby, contamination of the insides of the drum and tub is minimized.
  • the ribs are formed on the flange shaft, which thus increases the strength of the flange shaft.
  • the ribs are extended in the same direction of the extension direction of the flange shaft, and thus form channels of water flowing on the flange shaft in the washing or rinsing cycle and reduce the remaining of contaminants on the flange shaft. Further, the contaminants remaining on the flange shaft are easily removed and thus the washability of the flange shaft is enhanced.
  • the washing machine minimizes the contaminants remaining on the flange shaft, and thus prevents the generation of a bad smell caused by bacteria and mold and maintains sanitary conditions.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (13)

  1. Machine à laver, comprenant :
    un tambour (30) configuré pour recevoir des articles à laver ;
    une cuve (20) pourvue à l'extérieur du tambour (30),
    un dispositif de lavage (60) configuré pour pulvériser de l'eau afin de mettre en oeuvre le lavage d'une surface externe du tambour (30) ; et
    une unité de contrôle (70) qui contrôle le lavage de la surface externe du tambour (30) de telle sorte que le lavage de la surface externe du tambour (30) est mis en oeuvre durant un cycle de lavage ou de rinçage (101, 201) de la machine à laver,
    caractérisée
    en ce que le dispositif de lavage (60) comprend un gicleur (62, 65) pour ajuster une direction de pulvérisation de l'eau, dans lequel
    le gicleur (62, 65) fait face à une surface arrière du tambour (30).
  2. Machine à laver selon la revendication 1, dans laquelle le dispositif de lavage (60) est connecté à la cuve (20) et pulvérise l'eau sur la surface arrière du tambour (30).
  3. Machine à laver selon la revendication 1 ou 2, comprenant en outre un dispositif de circulation (40) pour faire circuler l'eau dans la cuve (20), le dispositif de lavage (60) étant connecté au dispositif de circulation (40) et pulvérisant une partie de l'eau circulée.
  4. Machine à laver selon l'une des revendications 1 à 3, dans laquelle l'unité de contrôle (70) contrôle le lavage du tambour (30) de telle sorte que le lavage du tambour (30) est mis en oeuvre durant un cycle de déshydratation (107, 204).
  5. Machine à laver selon l'une des revendications 1 à 4, comprenant en outre une unité de détection de niveau d'eau (80) qui détecte un niveau d'eau dans la cuve (20), l'unité de contrôle (70) mettant en oeuvre un cycle de vidange (103, 203) jusqu'à ce que le niveau d'eau dans la cuve (20) soit détecté comme ayant atteint un niveau désigné, et arrêtant le cycle de vidange (103, 203) et mettant en oeuvre le cycle de déshydratation (107, 204) lorsque le niveau d'eau dans la cuve (20) est détecté comme ayant atteint le niveau désigné.
  6. Machine à laver selon l'une des revendications 1 à 4, comprenant en outre un dispositif d'alimentation en eau (50) pour alimenter de l'eau, l'unité de contrôle (70) contrôlant le dispositif d'alimentation en eau (50) de telle sorte qu'un niveau d'eau désigné est fourni à la cuve (20) après qu'un cycle de vidange (103, 203) est terminé.
  7. Machine à laver selon l'une des revendications 1 à 4, comprenant en outre un dispositif d'alimentation en eau (50) pour alimenter l'eau, le dispositif de lavage (60) étant connecté au dispositif d'alimentation en eau (50) et pulvérisant l'eau alimentée.
  8. Machine à laver selon l'une des revendications 1 à 7, comprenant en outre un arbre à bride (32) connecté à la surface arrière du tambour (30) ; et une pluralité de nervures (34) faisant saillie de l'arbre à bride (32) et s'étendant en continu depuis le centre de l'arbre à bride (32) en direction radiale du tambour (30) pour former des canaux (35) sur l'arbre à bride (32).
  9. Machine à laver selon l'une des revendications 1 à 8, dans laquelle la cuve (20) reçoit de l'eau, le tambour (30) est installé dans la cuve (20), et le dispositif de lavage (60) est installé entre la cuve (20) et le tambour (30) pour mettre en oeuvre le lavage du tambour (30).
  10. Procédé de contrôle d'une machine à laver comportant une cuve (20) pour contenir de l'eau et un tambour (30) agencé dans la cuve (20), comprenant :
    la mise en oeuvre d'un cycle de lavage ou de rinçage (101, 201) en faisant circuler l'eau dans la cuve (20) ; et
    la mise en oeuvre du lavage d'une surface externe du tambour (30) en utilisant une partie de l'eau circulée durant le cycle de lavage ou de rinçage (101, 201),
    caractérisé
    en ce que le lavage du tambour (30) est mis en oeuvre en pulvérisant ladite partie de l'eau circulée sur une surface arrière du tambour (30).
  11. Procédé selon la revendication 10, comprenant en outre :
    la mise en oeuvre d'un cycle de vidange (103, 203) pour vidanger l'eau dans la cuve (20), et
    la mise en oeuvre d'un cycle de déshydratation (107, 204) lorsque le niveau de l'eau dans la cuve (20) est détecté comme ayant atteint le niveau désigné, le lavage du tambour (30) étant mis en oeuvre durant le cycle de déshydratation (107, 204).
  12. Procédé selon la revendication 10, comprenant en outre :
    la vidange de l'eau de la cuve (20) ;
    l'alimentation d'eau additionnelle dans la cuve (20) lorsque la vidange est terminée ; et
    la mise en oeuvre d'un cycle de déshydratation (107, 204) lorsque le niveau de l'eau dans la cuve (20) est détecté comme ayant atteint un niveau désigné, le lavage du tambour (30) étant mis en oeuvre durant le cycle de déshydratation (107, 204).
  13. Procédé selon l'une des revendications 10 à 12, comprenant en outre :
    la mise en oeuvre du lavage d'une surface externe du tambour (30) durant le cycle de lavage, de rinçage ou de déshydratation (107, 204), le lavage de la surface externe du tambour (30) étant mis en oeuvre en lavant le tambour (30) avec de l'eau fournie par un dispositif d'alimentation en eau (50) en utilisant un dispositif de lavage (60) connecté au dispositif d'alimentation en eau (50) .
EP09156313.0A 2008-05-30 2009-03-26 Machine à laver à tambour et procédé de nettoyage du tambour Expired - Fee Related EP2128322B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080050853A KR20090124565A (ko) 2008-05-30 2008-05-30 세탁기 및 그 제어 방법
KR1020080094117A KR20100034898A (ko) 2008-09-25 2008-09-25 세탁기

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EP2128322B1 true EP2128322B1 (fr) 2014-03-05

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CN203475160U (zh) * 2013-07-26 2014-03-12 博西华电器（江苏）有限公司 具有清洁装置的衣物清洗设备
WO2016199958A1 (fr) * 2015-06-11 2016-12-15 삼성전자주식회사 Machine à laver et son procédé de commande
CN106400392B (zh) * 2015-07-30 2021-03-09 青岛海尔洗涤电器有限公司 一种滚筒洗衣机及其控制方法
CH712014B1 (de) * 2016-01-14 2019-08-30 V Zug Ag Waschmaschine mit Wasserzufuhr durch die Trommelrückseite.
KR102578677B1 (ko) * 2016-10-05 2023-09-13 엘지전자 주식회사 세탁기의 제어방법
DE102018200147A1 (de) * 2018-01-08 2019-07-11 BSH Hausgeräte GmbH Verfahren zur Behandlung von Wäsche in einer Waschmaschine mit Umpumpsystem sowie Waschmaschine hierfür
JP7506377B2 (ja) * 2020-12-25 2024-06-26 青島海爾洗衣机有限公司 洗濯機
CN114182481B (zh) * 2021-12-23 2022-12-16 珠海格力电器股份有限公司 基于进水参数的洗涤装置的洗涤方法和洗涤装置
CN115748193B (zh) * 2022-11-03 2024-07-23 北京赛升药业股份有限公司 一种可更换式洗衣机滚筒

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856699A (en) * 1956-08-06 1958-10-21 Gen Motors Corp Clothes drier with condenser
KR20040007001A (ko) * 2002-07-16 2004-01-24 삼성전자주식회사 워블링 세탁기의 제어방법
JP2005065923A (ja) 2003-08-22 2005-03-17 Matsushita Electric Ind Co Ltd ドラム式洗濯機
KR100631574B1 (ko) * 2005-08-13 2006-10-09 엘지전자 주식회사 응축식 세탁건조기
US7934281B2 (en) * 2005-11-14 2011-05-03 Whirlpool Corporation Stain removal process control method using BPM motor feedback
GB2432577A (en) 2005-11-25 2007-05-30 Andrew Reason Ltd Dispensing apparatus
JP4751357B2 (ja) * 2007-03-27 2011-08-17 パナソニック電工株式会社 洗濯機

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US20090293204A1 (en) 2009-12-03

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