WO2020088309A1 - 滚筒洗衣机 - Google Patents

滚筒洗衣机 Download PDF

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Publication number
WO2020088309A1
WO2020088309A1 PCT/CN2019/112539 CN2019112539W WO2020088309A1 WO 2020088309 A1 WO2020088309 A1 WO 2020088309A1 CN 2019112539 W CN2019112539 W CN 2019112539W WO 2020088309 A1 WO2020088309 A1 WO 2020088309A1
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WO
WIPO (PCT)
Prior art keywords
drum
ozone
washing machine
laundry
bias
Prior art date
Application number
PCT/CN2019/112539
Other languages
English (en)
French (fr)
Inventor
高桥靖
松下丈也
森大树
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
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.)
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Publication date
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社 filed Critical 青岛海尔洗衣机有限公司
Publication of WO2020088309A1 publication Critical patent/WO2020088309A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 

Definitions

  • the present invention relates to a drum washing machine that performs, for example, a washing process, a rinsing process, and a dehydration process.
  • drum washing machine As a commercial drum washing machine used in a laundromat or the like, there is a drum washing machine that does not have a drying function. In such a drum washing machine, the washing process, the rinsing process, and the spin-drying process are automatically performed.
  • a process of supplying ozone into the drum and rinsing the laundry with ozone water may be considered. Therefore, in such a drum washing machine, ozone is generated by an ozone generating device and supplied to the drum, but not all the ozone supplied into the drum is dissolved in water, so the drum is filled with ozone.
  • the dehydration process is carried out and the washing is completed. Therefore, when the washing is properly ended, the ozone concentration in the drum becomes low, and there is no problem even if the door of the drum washing machine is opened.
  • FIG. 8 is a schematic diagram showing a state change in the drum when washing is properly ended.
  • the dehydration process starts, as shown in (a) of FIG. 8, the ozone concentration in the drum is high.
  • the rotation speed of the drum is increased to perform the spin-drying operation, as shown in FIG. 8 (b) and FIG. 8 (c)
  • the drum rotates to rotate The water contained in the washing is removed.
  • the ozone concentration in the drum will decrease at the end of the dehydration process.
  • FIG. 9 is a schematic diagram showing a state change in the drum when washing is not properly ended.
  • the dehydration process starts, as shown in (a) of FIG. 9, the ozone concentration in the drum is high. Then, the rotation speed of the drum is increased to perform the spin-drying operation. However, as shown in FIG. 9 (b) and FIG. 9 (c), the laundry in the drum is largely biased, so the rotation of the drum is stopped. At this time, although a part of the ozone in the drum will be discharged from the exhaust port, after that, even if the dehydration operation is restarted after the unwinding operation, it will be stopped immediately, so most of the ozone in the drum cannot be discharged from the exhaust port.
  • drum washing machine there is a drum washing machine having a drying function.
  • the washing process, the rinsing process, the dehydration process, and the drying process are automatically performed. Therefore, in the drum washing machine that has been subjected to the drying process, after the sterilization rinse is performed, when the air in the drum is discharged during the drying process, the ozone in the drum will also be removed, so at the end of the washing The ozone concentration becomes lower, and there is no problem even if the door of the drum washing machine is opened.
  • the dehydration process will be stopped if the laundry is biased during the dehydration process and the dehydration cannot be started.
  • the ozone in the drum is discharged by driving the fan for the drying process, so that the ozone concentration in the drum is reduced.
  • the operation of the drum washing machine is also stopped for a long time in the drum washing machine that has proceeded to the drying process.
  • Patent Document 1 Japanese Patent Laid-Open No. 2018-33512
  • the object of the present invention is to provide a drum washing machine which can reduce the ozone concentration in the drum in a short time after the sterilization and rinsing, when the bias of the laundry in the dehydration process is large and the dehydration process is stopped Open the door of the drum washing machine.
  • a method of reducing the ozone in the drum when the dehydration process is stopped a method of discharging ozone from the exhaust port, a method of rotating the drum and consuming ozone by collision, and the like may be considered.
  • the dehydration process is stopped because the bias of the laundry is large, and even if the drum is rotated, it is difficult to increase the rotation speed of the drum to a high rotation speed. Therefore, the method of rotating the drum and depleting ozone by collision is not effective.
  • the inventor of the present invention conducted an experiment to evaluate the change in the ozone concentration in the drum by variously changing the rotation speed of the drum.
  • the inventors of the present invention found that when the spin-drying process is stopped, by rotating the drum at a predetermined speed, the laundry passes through the central part of the drum, and the ozone concentration in the drum can be reduced in a short time .
  • the drum washing machine of the present invention includes: a water supply path for supplying water to the drum arranged in the main body of the washing machine; an ozone generating device for generating ozone in the water supply path; and an exhaust path for making the drum and the The exterior of the washing machine body communicates; and an eccentricity detection unit that detects the bias of the laundry in the drum, and the drum washing machine performs rinsing while ozone generated by the ozone generating device is supplied to the drum After the sterilization and rinsing process, a dehydration process is performed.
  • the drum washing machine is characterized in that, during the dehydration process, the bias of the laundry detected by the eccentricity detection unit is greater than a predetermined bias and the dehydration process is terminated Next, an ozone removal operation is performed to rotate the drum so that the laundry in the drum passes through the central portion of the drum.
  • the ozone removal operation is performed by continuously rotating the drum.
  • the rotation speed of the drum during the ozone removal operation is 40 to 60 rpm.
  • the drum is configured to be rotatable about a rotation axis extending in a horizontal direction or an oblique direction, and when viewed from the front, above the drum, at a central portion relative to the inside of the drum
  • the area on one side is provided with an exhaust port communicating with the exhaust path, and during the ozone removal operation, the drum rotates so that the lower end portion of the drum moves toward the exhaust port side.
  • the drum washing machine of the present invention includes a door lock device that switches a door that opens / closes the opening of the drum to a locked state or an unlocked state, and the door lock device is controlled as follows: During the process, the door is in a locked state, and when the dehydration process is suspended, after the ozone removal operation is performed, the door is in an unlocked state.
  • the drum washing machine of the present invention in the dehydration process after the sterilization and rinsing process is performed, when the dehydration process is stopped because the bias of the laundry is more than a predetermined bias, the drum is rotated to wash the laundry in the drum Ozone removal operation after passing through the central part of the drum. Therefore, when the dehydration process is stopped, the ozone located in the central portion of the drum is easily diffused and discharged from the exhaust passage. Therefore, when the dehydration process is stopped, the ozone concentration in the drum is reduced in a short time to open the door of the washing machine.
  • the drum washing machine of the present invention during the ozone removal operation, by continuously rotating the drum, the laundry at the lower portion of the drum is repeatedly lifted along the peripheral wall of the drum, and then the laundry is moved to pass through the central portion of the drum action. Therefore, the ozone concentration in the drum can be effectively reduced.
  • the laundry in the lower portion of the drum can be lifted along the peripheral wall of the drum, and then the laundry can be moved to pass through the central portion of the drum.
  • the drum washing machine of the present invention since the lower end portion of the drum rotates so as to move on the side where the exhaust port communicating with the exhaust passage is arranged in the upper direction of the drum, an air flow toward the exhaust port is formed in the drum, The ozone in the drum easily flows toward the exhaust port. Therefore, the ozone in the drum can be discharged from the exhaust port in a shorter time.
  • the door is unlocked after the ozone concentration in the drum is reduced by performing the ozone removal operation.
  • FIG. 1 is a side sectional view showing the structure of the drum washing machine 1 of the present embodiment.
  • FIG. 2 is a front view showing a schematic structure of the drum washing machine 1 of FIG. 1.
  • FIG. 3 is a diagram showing the configuration of the ozone generating device 58.
  • FIG. 4 is a control block diagram of the drum washing machine 1 of FIG. 1.
  • FIG. 5 is a schematic diagram showing a state change in the drum 22 during the ozone removing operation of the drum washing machine 1 of FIG. 1.
  • FIG. 6 is a diagram showing the operation of the washing mode of the drum washing machine 1 of FIG. 1.
  • FIG. 7 is a diagram illustrating the operation of the spin-drying process of the drum washing machine 1 of FIG. 1.
  • FIG. 8 is a schematic diagram showing a state change in the drum when washing is properly ended.
  • FIG. 9 is a schematic diagram showing a state change in the drum when washing is not properly ended.
  • Drum washing machine 10: Cabinet (main body of washing machine); 12: door; 20c: exhaust port; 22: drum; 22a: opening of drum; 54: exhaust path; 55: ozone water supply path (water supply path) ); 58: ozone generating device; 60a: eccentricity detection unit (eccentricity detection unit); 62: door lock device.
  • FIG. 1 is a side sectional view showing the structure of the drum washing machine 1 of the present embodiment.
  • the drum washing machine 1 includes a cabinet 10 as a main body of the washing machine that constitutes the appearance.
  • the front surface 10a of the cabinet 10 is inclined from the central portion to the upper portion, and the laundry inlet 11 is formed on the inclined surface.
  • the entrance 11 is covered by a door 12 that can be opened and closed freely.
  • the outer cylinder 20 is elastically supported by a plurality of dampers 21.
  • a drum 22 is rotatably arranged inside the outer cylinder 20.
  • the outer cylinder 20 and the drum 22 are inclined with respect to the horizontal direction so that the rear surface side becomes lower. Thereby, the drum 22 rotates about the rotation axis extending in the direction inclined with respect to the horizontal direction.
  • the opening 20a on the front surface of the outer cylinder 20 and the opening 22a on the front surface of the drum 22 face the inlet 11 and are closed by the door 12 together with the inlet 11.
  • Many dewatering holes 22b are formed in the peripheral wall of the drum 22.
  • three lifting ribs 23 are provided at substantially equal intervals in the circumferential direction.
  • a rotary wing 24 is rotatably arranged.
  • the rotary wing 24 has a substantially disc shape.
  • the rotor 24 rotates coaxially with the drum 22.
  • the drive unit 30 that generates torque that drives the drum 22 and the rotary blade 24 is disposed.
  • the drive unit 30 has a motor 30a (FIG. 4).
  • a drain port 20b is formed at the bottom of the outer cylinder 20.
  • the drain port 20b is connected to the drain hose 40.
  • the drain hose 40 is provided with a drain valve 40a. When the drain valve 40a is opened, the water stored in the outer cylinder 20 is discharged to the outside of the body through the drain hose 40.
  • a detergent box 50 is arranged in the upper front part of the cabinet 10.
  • the detergent container 50a containing the detergent is accommodated in the detergent box 50 so as to be freely drawn from the front.
  • the detergent box 50 is connected to the upper part of the outer cylinder 20 through a water injection pipe 51.
  • the detergent box 50 is connected to the faucet through the water supply hose 52.
  • the water supply hose 52 is provided with a water supply valve 52 a disposed at the upper rear portion in the casing 10. When the water supply valve 52a is opened, tap water is supplied into the outer cylinder 20 from the faucet through the water supply hose 52, the detergent box 50, and the water injection pipe 51. At this time, the detergent contained in the detergent container 50a is washed away by water and supplied into the outer cylinder 20.
  • the outer cylinder 20 is equipped with a vibration switch 31 that is turned on / off by vibration caused by the rotation of the rotary drum 22.
  • an exhaust port 20 c is formed in the upper part of the outer cylinder 20.
  • the exhaust port 20c is arranged above the drum 22 in a region on the left side with respect to the central portion of the drum 22 when viewed from the front, and is connected to the exhaust passage 54 that communicates the inside of the drum 22 with the outside of the cabinet 10. Therefore, the air and ozone in the drum 22 are discharged to the outside of the machine through the exhaust passage 54.
  • Activated carbon is accommodated in a part of the exhaust passage 54, and the gas passing through the exhaust passage 54 passes through the activated carbon and is discharged outside the machine. Therefore, part of the ozone passing through the exhaust passage 54 is consumed by activated carbon.
  • the drum washing machine 1 can perform a rinsing process (so-called sterilization rinsing) by supplying ozone to the drum 22 and rinsing the laundry with ozone water. Therefore, as shown in FIG. 2, an ozone water supply channel 55 which is a water supply channel independent of the water supply hose 52 is connected below the drum 22, and an ozone water supply valve 55 a and an ozone generating device 58 are arranged in the ozone water supply channel 55. Therefore, ozone water is supplied to the drum 22 by controlling the ozone water supply valve 55a and the ozone generating device 58.
  • the ozone generating device 58 includes an ozone electrolysis section 58 a, and the ozone electrolysis section 58 a is disposed in an ozone generation area that is provided substantially horizontally with a part of the ozone water supply path 55.
  • the ozone generating device 58 is configured to pass a pair of ozone electrolysis sections 58a in series and generate ozone by electrolysis of water.
  • a first connection portion 55b extending upward is formed on the upstream side of the ozone generation region of the ozone water supply path 55, and a second connection portion 55c extending downward is formed on the downstream side.
  • FIG. 4 is a control block diagram of the drum washing machine 1 of this embodiment.
  • the control unit 60 of the drum washing machine 1 is composed of, for example, a microcomputer and the like, and includes a CPU, a ROM that stores a program that controls the operation of the drum washing machine 1, and a RAM that temporarily stores data and the like used when the above-mentioned program is executed. The operation of the drum washing machine 1 is controlled by this control unit 60.
  • the control unit 60 has an eccentricity detection unit 60a.
  • the control unit 60 is connected to an operation unit 61, a vibration switch 31, a motor 30a, a water supply valve 52a, a drain valve 40a, an ozone water supply valve 55a, an ozone generating device 58, a door lock device 62, and a display unit 63.
  • the eccentricity detection unit 60a detects the deflection (eccentricity) of the laundry in the drum 22 when the drum 22 rotates during the spin process based on the detection signal from the vibration switch 31. Specifically, in the on and off signals of the vibration switch 31, when the interval of the off time is longer than a predetermined time, the eccentricity detection unit 60a regards the vibration of the drum 22 as abnormal vibration and detects The bias of the laundry is more than the prescribed bias. That is, when the laundry is not uniformly attached to the peripheral wall of the drum 22 and a deviation of more than a predetermined amount occurs, the eccentricity detection unit 60a detects that the deviation of the laundry in the drum 22 is a predetermined deviation or more.
  • the spin-drying process when the bias of the laundry in the drum 22 is equal to or greater than the predetermined bias, the spin-drying process is interrupted, and when the interruption of the spin-drying process is repeated two or more times a predetermined number of times, the spin-drying process is terminated.
  • the operation unit 61 includes a power button 61a, a start button 61b, and a sterilization rinse button 61c.
  • the power button 61a is a button for turning on and off the power of the drum washing machine 1.
  • the start button 61b is a button for starting operation.
  • the sterilization rinse button 61c is a button for performing sterilization rinse.
  • the operation unit 61 outputs the input signal corresponding to the button operated by the user to the control unit 60.
  • the control unit 60 controls the rotation speed of the drum 22 by controlling the motor 30a.
  • the control unit 60 controls the water supply valve 52 a and the drain valve 40 a to perform water supply to and discharge from the outer cylinder 20.
  • the control unit 60 controls the ozone water supply valve 55a and the ozone generating device 58 to supply the ozone generated by the ozone generating device 58 into the drum 22 when performing sterilization and rinsing.
  • the control unit 60 controls the door lock device 62 that switches the door 12 to the locked state or the unlocked state, thereby locking and unlocking the door 12.
  • the control unit 60 controls the display unit 63 to, for example, display an error display showing an abnormal state when the drum washing machine 1 becomes an abnormal state.
  • the case where the control unit 60 performs an error display refers to a case where the abnormal state of the washing machine cannot be eliminated even by controlling each part of the drum washing machine 1. Therefore, in the drum washing machine 1, for example, in the spin-drying process, the bias of the laundry in the drum 22 is equal to or greater than a predetermined bias, and when spin-drying cannot be started, the spin-drying process is terminated, the control unit 60 displays an error to prompt the user to perform the washing Action of things.
  • the control unit 60 controls the motor 30 a in consideration of the bias of the laundry in the drum 22.
  • control unit 60 controls the motor 30 a to increase the rotation speed of the drum 22 at a predetermined ascent speed corresponding to the current rotation speed of the drum 22.
  • control unit 60 controls the motor 30a to slowly accelerate the rotation speed at a low acceleration until the rotation speed of the drum 22 reaches 100 rpm, and performs an operation such that the laundry is slowly and uniformly attached to the inner circumference of the drum. Then, the control unit 60 controls the motor 30a to increase the acceleration that increases the rotation speed of the drum 22 to increase the rotation speed to the target rotation speed (for example, 800 rpm). In addition, during the dehydration process, when the rotation speed of the drum 22 reaches the target rotation speed (for example, 800 rpm), the control unit 60 continues the dehydration operation, and ends the dehydration process after a predetermined dehydration time has elapsed.
  • target rotation speed for example, 800 rpm
  • control unit 60 determines that the bias of the laundry in the drum 22 is greater than or equal to the predetermined bias. Interrupt the dehydration process.
  • control unit 60 controls the motor 30a to increase the rotation speed of the drum 22 in stages, but before the rotation speed of the drum 22 reaches the target rotation speed, if the laundry in the drum 22 If the bias is greater than the prescribed bias, the dehydration process is interrupted and the operation to unwrap the laundry is performed.
  • the operation to undo the laundry refers to an operation to eliminate the bias of the laundry in the drum 22.
  • the control unit 60 performs the operation of eliminating the bias of the laundry by repeatedly rotating the drum 22 at a low speed (approximately 40 to 50 rpm) in forward rotation and reverse rotation to agitate the laundry.
  • the control unit 60 ends the unlocking operation when the predetermined unlocking operation time elapses. That is, in order to eliminate the abnormal state of the washing machine, that is, the state where the bias of the laundry is equal to or greater than the predetermined bias, the control unit 60 controls each part of the drum washing machine 1 to perform the unlocking operation.
  • the unwinding operation is performed before starting the spin-drying operation, or when the laundry is biased and the spin-drying operation is restarted.
  • the control unit 60 controls the motor 30a to restart the spin-drying process, thereby increasing the rotation speed of the drum 22 in stages.
  • the control unit 60 restarts the dehydration process after performing the decoupling operation.
  • the dehydration process is terminated. That is, when it is impossible to eliminate the bias of the laundry in the drum 22 by performing the unlocking operation, the control unit 60 considers that even if each part of the drum washing machine 1 is controlled, the abnormal state of the washing machine cannot be eliminated, and the spin-drying process is suspended. Then, after the ozone removal operation is performed, the control unit 60 displays an error on the display unit 63 of the drum washing machine 1 and performs a process that prompts the user to perform an operation to undo the laundry.
  • the ozone removal operation refers to an operation for reducing the ozone concentration in the drum 22 when the dehydration process after the sterilization rinse process is stopped.
  • the ozone removal operation is performed when the dehydration process is stopped because the bias of the laundry is equal to or greater than the predetermined bias.
  • the control unit 60 continuously rotates the drum 22 so that the laundry in the drum 22 passes through the central portion of the drum 22.
  • the control unit 60 continues to rotate the drum 22 at a predetermined rotation speed (for example, 50 rpm) for a predetermined ozone removal time (for example, 10 minutes).
  • the predetermined rotation speed of the drum 22 during the ozone removal operation is, for example, 40 to 60 rpm.
  • the rotation speed of the drum 22 is too low (for example, 20 to 30 rpm)
  • the laundry located in the lower part of the drum 22 cannot be lifted along the peripheral wall of the drum.
  • the rotation speed of the drum 22 is too high (for example, 70 to 100 rpm)
  • the drum 22 rotates with the laundry in the drum 22 attached to the peripheral wall of the drum 22.
  • the predetermined rotation speed of the drum 22 during the ozone removal operation is set to the rotation speed: when the drum 22 rotates, the laundry located in the lower part of the drum 22 is lifted along the peripheral wall of the drum 22, and then the laundry leaves The peripheral wall of the drum 22 falls downward from above so as to pass through the central portion in the drum 22.
  • the central portion in the drum 22 refers to at least a portion of the space in the drum 22 where the extension line of the rotation axis of the drum 22 passes.
  • the predetermined rotation speed of the drum 22 in the ozone removal operation is substantially the same rotation speed.
  • drum washing machine 1 of the present embodiment is the same as the conventional washing machine, and when the spin-drying process is stopped, as shown in FIG. 5 (a), the ozone concentration in the drum is not sufficiently low.
  • the ozone concentration in the drum 22 at the central portion of the drum 22 becomes high, and when the laundry passes through the central portion of the drum 22, the ozone located in the central portion of the drum 22 diffuses and tends to face the exhaust port 20c Flowing, the ozone in the drum 22 is discharged from the exhaust port 20c.
  • the exhaust port 20c is arranged above the drum 22 in a region on the left side with respect to the central portion in the drum 22 when viewed from the front.
  • the drum 22 rotates in the direction of the arrow shown in FIG. 2. Therefore, an air flow toward the exhaust port 20c is formed in the drum 22, and ozone in the drum 22 easily flows toward the exhaust port 20c.
  • the drum washing machine 1 of the present embodiment includes: an ozone water supply channel 55 for supplying water to the drum 22 disposed in the cabinet 10 as the main body of the washing machine; an ozone generating device 58 for generating ozone in the ozone water supply channel 55;
  • the air passage 54 communicates the inside of the drum 22 with the outside of the cabinet 10; and the eccentricity detection unit 60a as an eccentricity detection unit detects the deflection of the laundry in the drum 22.
  • a dehydration process is performed, and during the dehydration process, the delamination of the laundry detected by the eccentricity detection unit 60a is equal to or greater than a predetermined deviation to stop dehydration
  • the ozone removal operation which rotates the drum 22 so that the laundry in the drum 22 passes the center part in the drum 22 is performed.
  • the drum washing machine 1 of the present embodiment in the dehydration process after the sterilization and rinsing process is performed, when the dehydration process is stopped because the bias of the laundry is equal to or greater than the predetermined bias, the drum 22 is rotated to The laundry in the drum 22 passes through the ozone removing operation in the central portion of the drum 22. Therefore, when the dehydration process is stopped, the ozone located in the central portion of the drum 22 is easily diffused and discharged from the exhaust passage 54. Therefore, when the dehydration process is stopped, the ozone concentration in the drum 22 is reduced in a short time to open the door 12 of the drum washing machine 1.
  • the drum 22 is arranged to be rotatable about a rotation axis extending in a horizontal direction or an oblique direction.
  • the drum 22 is placed closer to the center of the drum 22
  • the left side region of the side region is provided with an exhaust port 20c communicating with the exhaust passage 54.
  • the drum 22 rotates so that the lower end portion of the drum 22 moves toward the exhaust port 20c side.
  • the airflow toward the exhaust port 20c is formed in the drum 22, and the ozone in the drum 22 easily flows toward the exhaust port 20c. Therefore, the ozone in the drum 22 can be discharged from the exhaust port 20c in a shorter time.
  • the drum washing machine 1 has, for example, a washing process, a rinsing process, and a spin-drying process, and can operate in a washing mode without a drying process. It should be noted that in this embodiment, the following will be described: before the end of the washing process, the user presses the sterilization and rinsing button 61c of the operation unit 61, and a predetermined amount of money is used to generate the ozone generator 58. The ozone sterilization rinse process.
  • step S1 first, the user opens the door 12, puts laundry in the drum 22, and closes the door 12.
  • the control section 60 opens the water supply valve 52a for supplying ordinary washing water to supply water to the outer tub 20.
  • the control unit 60 closes the drain valve 40a, and the supplied water is stored in the outer cylinder 20 and also stored in the drum 22.
  • the control unit 60 closes the water supply valve 52a, drives (turns on) the motor 30a, and rotates the drum 4.
  • the control unit 60 opens the drain valve 40a, and the washing water in the outer tub 20 is discharged to the outside of the machine body through the drain hose 40.
  • the control unit 60 rotates the drum 22 at a high speed by the motor 30a, and performs intermediate dehydration to remove the washing water contained in the laundry.
  • the washing water removed from the laundry by intermediate dehydration is discharged into the outer cylinder 20 through the dehydration hole 22b, and is discharged to the outside of the machine body from the drain port 20b.
  • step S1 when the washing process ends, a rinsing process is performed in step S2.
  • the control section 60 closes the drain valve 40a, opens the water supply valve 52a for supplying ordinary washing water, and supplies a predetermined amount of rinsing water to the outer tub 3. Then, when a predetermined amount of water is supplied, the control unit 60 closes the water supply valve 52a, rotates the drum 22 by the motor 30a, and rinses the laundry in the drum 22 for a predetermined time.
  • the control unit 60 opens the drain valve 40a to discharge the rinsing water in the outer cylinder 20 from the drain port 20b to the outside of the machine body.
  • intermediate dehydration is performed by the same dehydration operation as described above to remove the rinsing water contained in the laundry.
  • the removed rinse water is also drained from the drain port 20b to the outside of the machine body as described above.
  • step S2 when the rinsing process ends, a sterilization rinsing process is performed in step S3.
  • the control unit 60 closes the drain valve 40a, opens the ozone water supply valve 55a, and supplies a predetermined amount of rinsing water to the outer cylinder 20 via the ozone water supply path 55.
  • the control unit 60 switches the energization of the ozone electrolysis unit 58a from off to on.
  • the ozone electrolysis unit 58a electrolyzes the washing water to generate ozone.
  • the control unit 60 closes the ozone water supply valve 55a, rotates the drum 22 by the motor 30a, and performs sterilization and rinsing of the laundry in the drum 22 using the ozone water for a predetermined time.
  • the control unit 60 opens the drain valve 40a, and the rinsing water in the outer cylinder 20 is discharged to the outside of the machine body through the drain port 22b.
  • step S3 when the sterilization rinse process ends, a dehydration process is performed in step S4.
  • the control unit 60 increases the rotation speed of the drum 22 toward the target rotation speed.
  • the dehydration operation is performed until a predetermined dehydration time elapses.
  • the control unit 60 stops the rotation of the drum 22 and ends the operation in the washing mode. The water removed during the dehydration process is also discharged to the outside of the machine body from the drain port 22b as described above.
  • the spin-drying process when the bias of the laundry in the drum 22 is large, the spin-drying process is interrupted or suspended. According to FIG. 7, operations including the spin-drying process interruption or suspension will be described.
  • step S101 when the spin-drying process starts, the control unit 60 controls the door lock device 62 to put the door 12 in the locked state, and performs an unlocking operation for eliminating the bias of the laundry in the drum 22.
  • step S102 the control unit 60 increases the rotation speed of the drum 22 to the target rotation speed.
  • the control unit 60 determines whether the bias of the laundry in the drum 22 is greater than the predetermined bias while increasing the rotation speed of the drum 22.
  • step S103 when the control unit 60 determines that the bias of the laundry in the drum 22 is greater than or equal to the predetermined bias, the control unit 60 stops the rotation of the drum 22 and interrupts the spin-drying process.
  • step S105 the control unit 60 determines whether the dehydration process has been interrupted a predetermined number of times and stopped.
  • the process moves to step S101, and the control unit 60 performs the unlocking operation again.
  • step S105 when the control unit 60 determines that the dehydration process has been interrupted a predetermined number of times and stops, the process proceeds to step S106.
  • the control unit 60 stops the dehydration process, rotates the drum 22 continuously at 50 rpm, and starts the ozone removal operation.
  • the spin-drying process is interrupted, and after the opening operation While the dehydration operation is restarted, the dehydration process is terminated when the dehydration process is interrupted repeatedly for a predetermined number of times or more.
  • the spin-drying process when the spin-drying process is interrupted, if the bias of the laundry is eliminated by the action of unwinding the laundry, the spin-drying process can be continued without performing the ozone removal operation.
  • the ozone removal operation is performed by continuously rotating the drum 22.
  • the operation of lifting the laundry at the lower portion of the drum 22 along the peripheral wall of the drum 22 and then moving the laundry through the central portion of the drum 22 is repeated. Therefore, the ozone concentration in the drum can be effectively reduced.
  • the rotation speed of the drum 22 during the ozone removal operation is 40 to 60 rpm.
  • the laundry at the lower portion of the drum 22 can be lifted along the peripheral wall of the drum 22, and then the laundry can be moved to pass through the central portion of the drum 22.
  • step S107 the control unit 60 determines whether the ozone removal operation has continued for 10 minutes. In step S107, when the control unit 60 determines that the ozone removal operation has not continued for 10 minutes, the process proceeds to step S106, and the control unit 60 continues the ozone removal operation.
  • step S107 when the control unit 60 determines that the ozone removal operation has continued for 10 minutes, the process proceeds to step S108, and the control unit 60 stops the rotation of the drum 22.
  • step S109 the control unit 60 controls the door lock device 62 to put the door 12 in the unlocked state.
  • the drum washing machine 1 of the present embodiment is provided with a door lock device 62 that switches the door 12 that opens / closes the opening 22a of the drum 22 to a locked state or an unlocked state.
  • the door lock device 62 is controlled as follows: during the spin-drying process When the door 12 is locked, and the dehydration process is stopped, after the ozone removal operation is performed, the door 12 is unlocked.
  • the ozone concentration in the drum 22 is reduced by performing the ozone removal operation, and then the door 12 is unlocked.
  • step S110 the control unit 60 causes the display unit 63 to display an error, and performs a process that prompts the user to perform an operation to undo the laundry.
  • step S103 when the control unit 60 determines that the bias of the laundry in the drum 22 is smaller than the predetermined bias, the process proceeds to step S111, and the control unit 60 continues the spin-drying process to increase the rotation of the drum 22 to the target rotation speed and determine whether After the prescribed dehydration time.
  • step S111 when the control unit 60 determines that the predetermined dehydration time has elapsed, in step S112, the control unit 60 stops the rotation of the drum 22.
  • step S113 the control unit 60 controls the door lock device 62 to put the door 12 in the unlocked state.
  • the drum 22 rotates about a rotation axis extending in an oblique direction with respect to the horizontal direction.
  • the drum 22 may rotate about a rotation axis extending in the horizontal direction.
  • the dehydration process is suspended and the ozone removal operation is performed.
  • the dehydration process may not be implemented when the dehydration process is interrupted, and the dehydration process may be suspended for removal. Ozone is running.
  • the drum 22 continuously rotates during the ozone removal operation, but the drum 22 may rotate intermittently.
  • the exhaust port 20c communicating with the exhaust passage 54 is arranged above the drum 22 in a region on the side of the central portion of the drum 22 when viewed from the front.
  • the drum 22 The lower end portion of the drum 22 rotates so as to move toward the exhaust port 20c side.
  • the drum 22 may rotate so that the lower end portion of the drum 22 moves toward the side opposite to the exhaust port 20c.
  • the rotation of the lower end portion of the drum 22 toward the exhaust port 20c side and the rotation of the lower end portion of the drum 22 toward the opposite side of the exhaust port 20c may be alternately performed.
  • the eccentricity detection unit 60a detects the bias (eccentricity) of the laundry in the drum 22 based on the detection signal from the vibration switch 31, but the method of detecting the bias of the laundry in the drum 22 is not limited to this.
  • the drum washing machine 1 having no drying function has been described, but the present invention can also be applied to a drum washing machine having a drying function.
  • a drum washing machine with a drying function for example, in the case where a fan used in the drying process fails, the effects of the present invention can be obtained.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
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Abstract

一种滚筒洗衣机（1），在进行了除菌漂洗之后，在脱水过程中洗涤物的偏倚大而脱水过程中止的情况下，使滚筒（22）内的臭氧浓度在短时间内降低从而能打开洗衣机的门（12）。该滚筒洗衣机具备：臭氧水供水路（55），用于向配置于箱体（10）内的滚筒进行供水；臭氧产生装置（58），使臭氧供水路内产生臭氧；排气路（54），使滚筒内与洗衣机主体的外部连通；以及偏心检测单元（60a），检测滚筒内的洗涤物的偏倚，在进行了在由臭氧产生装置产生的臭氧被供给至滚筒的状态下进行漂洗的除菌漂洗过程之后，进行脱水过程，在脱水过程中由偏心检测单元检测出的洗涤物的偏倚为规定的偏倚以上而中止脱水过程的情况下，进行使滚筒旋转以使滚筒内的洗涤物经过滚筒内的中央部的去除臭氧运转。

Description

滚筒洗衣机 技术领域
本发明涉及一种例如进行洗涤过程、漂洗过程以及脱水过程的滚筒洗衣机。
背景技术
以往，作为自助洗衣店等使用的商用的滚筒洗衣机，有一种不具有烘干功能的滚筒洗衣机。这种滚筒洗衣机中，自动地进行从洗涤过程到漂洗过程、脱水过程。
现有的滚筒洗衣机中，可以考虑向滚筒内供给臭氧并通过臭氧水来进行漂洗洗涤物的过程(所谓的除菌漂洗)。因此，在这种滚筒洗衣机中，通过臭氧产生装置产生臭氧并将该臭氧供给至滚筒内，但是供给至滚筒内的臭氧并没有全部溶入水中，因此滚筒内充满臭氧。在通常的运转中，进行除菌漂洗之后，进行脱水过程，结束洗涤，因此在洗涤恰当结束的情况下，滚筒内的臭氧浓度会变低，即使打开滚筒洗衣机的门也没有问题。
图8是表示洗涤恰当结束的情况下的滚筒内的状态变化的示意图。脱水过程开始时，如图8的(a)所示，滚筒内的臭氧浓度高。然后，当滚筒的转速上升进行脱水运转时，如图8的(b)和图8的(c)所示，在滚筒内的洗涤物贴附于滚筒的周壁上的状态下，滚筒旋转，将洗涤物中所含的水脱去。在恰当地进行了脱水过程的情况下，由于滚筒内的臭氧从排气口排出，因此如图8的(d)所示，在脱水过程结束时滚筒内的臭氧浓度会降低。
但是，当在脱水过程中洗涤物的偏倚较大时，有时无法启动脱水。滚筒洗衣机中，在脱水过程中断的情况下，在进行解开洗涤物的运转之后会重新开始脱水过程，但是之后，当脱水过程的中断反复进行规定次数时，会无法启动脱水，因此脱水过程会中止。这种情况下，滚筒洗衣机的显示部会显示出错，进行促使用户解开洗涤物的动作的处理。这时，由于洗涤没有恰当地结束，因此滚筒内的臭氧浓度不够低。
图9是表示洗涤未恰当结束的情况下的滚筒内的状态变化的示意图。脱水过程开始时，如图9的(a)所示，滚筒内的臭氧浓度高。然后，滚筒的转速上升，进行脱水运转，但是如图9的(b)和图9的(c)所示，滚筒内的洗涤物的偏倚大，因此滚筒的旋转会停止。这时，虽然滚筒内的臭氧的一部分会从排气口排出，但是之后，即使进行解开运转之后重新开始脱水运转，也会马上中止，因此滚筒内的大部分臭氧无法从排气口排出。
因此，由于洗涤物的偏倚未被消除，因此在中止脱水过程并进行了出错显示的情况下，如图9的(d)所示，滚筒内的臭氧浓度不够低。因此，尽管滚筒停止，但是直到滚筒内的臭氧浓度足够低为止，都不能打开滚筒洗衣机的门。由此，用户不能进行解开洗涤物的动作，因此滚筒洗衣机的运转会长时间停止。
此外，作为商用的滚筒洗衣机，有一种具有烘干功能的滚筒洗衣机。这种滚筒洗衣机中，自动地进行从洗涤过程到漂洗过程、脱水过程、烘干过程。因此，由于在进行到烘干过程的滚筒洗衣机中，在进行除菌漂洗之后，在烘干过程中排出滚筒内的空气时，滚筒内的臭氧也会被去除，因此在洗涤结束时，滚筒内的臭氧浓度变低，即使打开滚筒洗衣机的门也没有问题。
但是，即使是进行到烘干过程的滚筒洗衣机，在进行除菌漂洗之后，在脱水过程中洗涤物的偏倚大而无法启动脱水的情况下，脱水过程也会中止。这时，可以考虑在进行到烘干过程的滚筒洗衣机中，通过驱动烘干过程用的风扇排出滚筒内的臭氧，使滚筒内的臭氧浓度降低。但是，在例如烘干过程用的风扇发生故障的情况下，在进行到烘干过程的滚筒洗衣机中，滚筒洗衣机的运转也会长时间停止。
现有技术文献
专利文献
专利文献1：日本特开2018－33512号公报
发明内容
发明所要解决的问题
本发明的目的在于，提供一种滚筒洗衣机，其在进行除菌漂洗之后，在脱水过程中洗涤物的偏倚大而脱水过程中止的情况下，使滚筒内的臭氧浓度在短时间内降低从而能打开滚筒洗衣机的门。
用于解决问题的方案
本发明的发明人进行研究的结果是，研究出一种方法，在脱水过程中洗涤物的偏倚大而脱水过程中止的情况下将滚筒内的臭氧浓度在短时间内降低。
作为在脱水过程中止的情况下使滚筒内的臭氧降低的方法，可以考虑将臭氧从排气口排出的方法、使滚筒旋转并通过碰撞来消耗臭氧的方法等。但是，脱水过程中止是由于洗涤物的偏倚大，即使旋转滚筒，也难以使滚筒的转速上升到高转速。因此，使滚筒旋转并通过碰撞来消耗臭氧的方法并不有效。
因此，虽然将臭氧从排气口排出会使滚筒内的臭氧降低，但是本发明的发明人发现，在脱水过程中止的情况下，在滚筒内的中央部，滚筒内的臭氧浓度高。
因此，本发明的发明人进行了使滚筒的转速发生各种变化来评价滚筒内的臭氧浓度的变化的试验。
(1)在滚筒的转速过低的情况下，位于滚筒内的下部的洗涤物不能沿滚筒的周壁被举起。因此，与不使滚筒旋转的情况相同，滚筒内的臭氧浓度只有经过较长时间才会降低。
(2)在滚筒的转速过高的情况下，由于滚筒在滚筒内的洗涤物贴附于滚筒的周壁的状态下进行旋转，因此位于滚筒内的中央部的臭氧没怎么从排气口排出。因此，与不使滚筒旋转的情况相同，滚筒内的臭氧浓度只有经过较长时间才会降低。
(3)在滚筒的转速为规定的转速的情况下，位于滚筒内的下部的洗涤物沿滚筒的周壁被举起，然后，洗涤物离开滚筒的周壁，以经过滚筒内的中央部的方式从上方朝向下方落下。这时，可以认为，洗涤物经过滚筒内的中央部，使得位于滚筒内的中央部的臭氧扩散，容易地从排气路排出。因此，与不使滚筒旋转的情况相比，滚筒内的臭氧浓度会在短时间内降低。
本发明的发明人根据上述的试验结果发现，在脱水过程中止的情况下，通 过使滚筒以规定转速旋转，使洗涤物经过滚筒内的中央部，能使滚筒内的臭氧浓度在短时间内降低。
即，本发明的滚筒洗衣机具备：供水路，用于向配置于洗衣机主体内的滚筒进行供水；臭氧产生装置，使所述供水路内产生臭氧；排气路，使所述滚筒内与所述洗衣机主体的外部连通；以及偏心检测单元，检测所述滚筒内的洗涤物的偏倚，所述滚筒洗衣机在进行了在由所述臭氧产生装置产生的臭氧被供给至所述滚筒的状态下进行漂洗的除菌漂洗过程之后，进行脱水过程，所述滚筒洗衣机的特征在于，在脱水过程中，在由所述偏心检测单元检测出的洗涤物的偏倚为规定的偏倚以上从而中止了脱水过程的情况下，进行使所述滚筒旋转以使所述滚筒内的洗涤物经过所述滚筒内的中央部的去除臭氧运转。
优选的是，本发明的滚筒洗衣机中，所述去除臭氧运转通过使所述滚筒连续旋转来进行。
优选的是，本发明的滚筒洗衣机中，所述去除臭氧运转中的所述滚筒的转速为40～60rpm。
优选的是，本发明的滚筒洗衣机中，所述滚筒配置成能绕沿水平方向或倾斜方向延伸的旋转轴旋转，正面观察时在所述滚筒的上方，在相对于所述滚筒内的中央部靠一侧的区域，配置有与所述排气路连通的排气口，所述臭氧除去运转中，所述滚筒以所述滚筒的下端部向所述排气口侧移动的方式旋转。
优选的是，本发明的滚筒洗衣机中，具备将打开/关闭所述滚筒的开口部的门切换为锁定状态或解锁状态的门锁装置，所述门锁装置以如下方式被控制：在进行脱水过程时使所述门处于锁定状态，并且在脱水过程中止的情况下，在进行了所述去除臭氧运转之后，使所述门处于解锁状态。
发明效果
本发明的滚筒洗衣机中，在进行了除菌漂洗过程之后的脱水过程中，在由于洗涤物的偏倚为规定的偏倚以上而中止脱水过程的情况下，进行使滚筒旋转以使滚筒内的洗涤物经过滚筒内的中央部的去除臭氧运转。因此，在脱水过程中止时，位于滚筒内的中央部的臭氧容易扩散而从排气路排出。因此，在脱水过程中止的情况下使滚筒内的臭氧浓度在短时间内降低从而能打开洗衣机的 门。
本发明的滚筒洗衣机中，在去除臭氧运转中，通过使滚筒连续旋转，反复进行将位于滚筒的下部的洗涤物沿滚筒的周壁举起，然后使洗涤物以经过滚筒的中央部的方式移动的动作。因此，能有效地降低滚筒内的臭氧浓度。
本发明的滚筒洗衣机中，在去除臭氧运转中，能将位于滚筒的下部的洗涤物沿滚筒的周壁举起，然后，使洗涤物以经过滚筒的中央部的方式移动。
本发明的滚筒洗衣机中，由于滚筒的下端部以在滚筒的上方向配置有与排气路连通的排气口的一侧移动的方式旋转，因此在滚筒内形成有朝向排气口的气流，滚筒内的臭氧容易朝向排气口流动。因此，能使滚筒内的臭氧在更短的时间内从排气口排出。
本发明的滚筒洗衣机中，在脱水过程中止的情况下，在通过进行去除臭氧运转而使得滚筒内的臭氧浓度降低之后，进行门的解锁。
附图说明
图1是表示本实施方式的滚筒洗衣机1的结构的侧剖图。
图2是表示图1的滚筒洗衣机1的概要结构的主视图。
图3是表示臭氧产生装置58的结构的图。
图4是图1的滚筒洗衣机1的控制框图。
图5是表示图1的滚筒洗衣机1的去除臭氧运转时的滚筒22内的状态变化的示意图。
图6是表示图1的滚筒洗衣机1的洗涤模式的动作的图。
图7是表示图1的滚筒洗衣机1的脱水过程的动作的图。
图8是表示洗涤恰当结束的情况下的滚筒内的状态变化的示意图。
图9是表示洗涤未恰当结束的情况下的滚筒内的状态变化的示意图。
附图标记说明
1：滚筒洗衣机；10：箱体(洗衣机主体)；12：门；20c：排气口；22：滚 筒；22a：滚筒的开口部；54：排气路；55：臭氧水供水路(供水路)；58：臭氧产生装置；60a：偏心检测部(偏心检测单元)；62：门锁装置。
具体实施方式
以下，参照附图，对作为本发明的滚筒洗衣机的实施方式的、不具有烘干功能的滚筒洗衣机1进行说明。图1是表示本实施方式的滚筒洗衣机1的结构的侧剖图。
滚筒洗衣机1具备构成外观的作为洗衣机主体的箱体10。箱体10的前表面10a从中央部倾斜到上部，在倾斜的面上形成有洗涤物的投入口11。投入口11由自由开闭的门12覆盖。
在箱体10内，外筒20由多个减振器21弹性支承。在外筒20内，自由旋转地配置有滚筒22。外筒20和滚筒22以后表面侧变低的方式相对于水平方向倾斜。由此，滚筒22绕沿相对于水平方向倾斜的方向延伸的旋转轴旋转。外筒20的前表面的开口部20a和滚筒22的前表面的开口部22a与投入口11对置，与投入口11一起由门12关闭。在滚筒22的周壁形成有许多脱水孔22b。进一步地，在滚筒22的周壁，沿周向以大致相等的间隔设置有三个提升筋23。
在滚筒22的后部，自由旋转地配置有旋转翼24。旋转翼24具有大致圆盘形状。在旋转翼24的表面，形成有从中央部向径向外侧延伸的多个突状部24a。旋转翼24与滚筒22同轴进行旋转。
在外筒20的后方，配置有产生驱动滚筒22和旋转翼24的转矩的驱动部30。驱动部30具有马达30a(图4)。
在外筒20的底部形成有排水口部20b。排水口部20b与排水软管40连接。在排水软管40设置有排水阀40a。当排水阀40a打开时，蓄于外筒20内的水通过排水软管40向机体外部排出。
在箱体10内的前方上部配置有洗涤剂盒50。收容有洗涤剂的洗涤剂容器50a从前方自由抽出地收容于洗涤剂盒50。洗涤剂盒50通过注水管51连接于外筒20的上部。洗涤剂盒50通过供水软管52与水龙头连接。在供水软管52设置有配置在箱体10内的后方上部的供水阀52a。当供水阀52a打开时，自来 水从水龙头通过供水软管52、洗涤剂盒50以及注水管51被供给至外筒20内。此时，收容于洗涤剂容器50a的洗涤剂被水冲走而被供给至外筒20内。
在外筒20装配有通过旋转滚筒22的旋转所引起的振动而接通/断开的振动开关31。
如图2所示，在外筒20的上部形成有排气口20c。排气口20c在正面观察时，在滚筒22的上方配置于相对于滚筒22的中央部靠左侧的区域，与使滚筒22内和箱体10的外部连通的排气路54连接。因此，滚筒22内的空气、臭氧通过排气路54向机外排出。在排气路54的一部分中收容有活性炭，经过排气路54的气体在经过活性炭之后，向机外排出。因此，经过排气路54的臭氧的一部分被活性炭消耗。
滚筒洗衣机1能进行向滚筒22供给臭氧并通过臭氧水来漂洗洗涤物的漂洗过程(所谓的除菌漂洗)。因此，如图2所示，作为独立于供水软管52的供水路的臭氧供水路55连接于滚筒22的下方，在臭氧供水路55配置有臭氧水供水阀55a和臭氧产生装置58。因此，通过控制臭氧水供水阀55a和臭氧产生装置58向滚筒22进行臭氧水的供给。
如图3所示，臭氧产生装置58包括臭氧电解部58a，臭氧电解部58a配设于与臭氧供水路55的一部分大致水平地设置的臭氧产生区域。臭氧产生装置58配置为使一对臭氧电解部58a串联穿过，并通过水的电解而产生臭氧。在臭氧供水路55的臭氧产生区域的上游侧形成有向上延伸的第一连接部55b，在下游侧形成有向下延伸的第二连接部55c。
图4是本实施方式的滚筒洗衣机1的控制框图。如图4所示，滚筒洗衣机1的控制部60例如由微型计算机等构成，具备CPU、储存有控制滚筒洗衣机1的动作的程序的ROM以及暂时存储执行上述程序时所用的数据等的RAM。滚筒洗衣机1的运转动作由该控制部60控制。
控制部60具有偏心检测部60a。此外，控制部60连接有操作部61、振动开关31、马达30a、供水阀52a、排水阀40a、臭氧水供水阀55a、臭氧产生装置58、门锁装置62以及显示部63。
偏心检测部60a根据来自振动开关31的检测信号，在脱水过程中滚筒22 进行旋转时，检测滚筒22内的洗涤物的偏倚(偏心)。具体而言，在振动开关31的接通、断开信号中，断开时间的间隔比规定时间长的情况下，偏心检测部60a将滚筒22的振动视为异常振动，检测出滚筒22内的洗涤物的偏倚为规定的偏倚以上。即，在洗涤物未均匀地贴附于滚筒22的周壁而产生规定量以上的偏倚的情况下，偏心检测部60a检测出滚筒22内的洗涤物的偏倚为规定的偏倚以上。本实施方式的滚筒洗衣机1中，在滚筒22内的洗涤物的偏倚为规定的偏倚以上的情况下，脱水过程中断，当脱水过程的中断反复进行两次以上的规定次数时，中止脱水过程。
操作部61包括电源按钮61a、开始按钮61b以及除菌漂洗按钮61c。电源按钮61a是用于接通和断开滚筒洗衣机1的电源的按钮。开始按钮61b是用于使运转开始的按钮。除菌漂洗按钮61c是用于进行除菌漂洗的按钮。操作部61将与用户所操作的按钮对应的输入信号输出至控制部60。
控制部60通过控制马达30a，从而控制滚筒22的转速。
控制部60通过控制供水阀52a和排水阀40a，从而进行向外筒20内的供水和从外筒20内的排水。
控制部60通过控制臭氧水供水阀55a和臭氧产生装置58，在进行除菌漂洗的情况下，将由臭氧产生装置58产生的臭氧供给至滚筒22内。
控制部60通过控制将门12切换为锁定状态或解锁状态的门锁装置62，从而进行门12的锁定和解锁。
控制部60通过控制显示部63，例如在滚筒洗衣机1变为异常状态时，进行显示出异常状态的出错显示等显示。在本实施方式中，控制部60进行出错显示的情况是指，即使控制滚筒洗衣机1的各部分也不能消除洗衣机的异常状态的情况。因此，滚筒洗衣机1中，例如在脱水过程中滚筒22内的洗涤物的偏倚为规定的偏倚以上，无法启动脱水因此中止脱水过程的情况下，控制部60进行出错显示，促使用户进行解开洗涤物的动作。
对于本实施方式的滚筒洗衣机1的脱水过程中的控制进行说明。
(脱水过程)
本实施方式的滚筒洗衣机1中，在脱水过程中，根据振动开关31的接通、 断开信号的断开时间的间隔，检测滚筒22内的洗涤物的偏倚。因此，控制部60考虑滚筒22内的洗涤物的偏倚，对马达30a进行控制。
(滚筒22内的洗涤物的偏倚比规定的偏倚小的情况)
在脱水过程中，控制部60使滚筒22的转速以与现在的滚筒22的转速对应的规定上升速度上升的方式控制马达30a。
具体而言，控制部60控制马达30a以使转速以较低的加速度缓慢加速直到滚筒22的转速达到100rpm，进行使洗涤物缓慢地均匀地贴附于滚筒的内周那样的运转。然后，控制部60控制马达30a以提高使滚筒22的转速上升的加速度而使转速上升至目标转速(例如800rpm)。此外，在脱水过程中，当滚筒22的转速达到目标转速(例如800rpm)时，控制部60继续脱水运转，在经过了预先设定的规定脱水时间之后，结束脱水过程。
(滚筒22内的洗涤物的偏倚为规定的偏倚以上的情况下)
控制部60在脱水过程中，在振动开关31的接通、断开信号中，断开时间的间隔比规定时间长的情况下，根据滚筒22内的洗涤物的偏倚为规定的偏倚以上，来中断脱水过程。
具体而言，当脱水过程开始时，如上所述，控制部60通过控制马达30a，使滚筒22的转速阶段性上升，但是在滚筒22的转速达到目标转速之前，如果滚筒22内的洗涤物的偏倚为规定的偏倚以上，则中断脱水过程，进行解开洗涤物的运转。
解开洗涤物的运转是指，用于消除滚筒22内的洗涤物的偏倚的运转。具体而言，作为解开运转，控制部60通过使滚筒22以低速(40～50rpm左右)反复进行正转、反转，进行洗涤物的搅拌，进行消除洗涤物的偏倚的运转。当经过了预先设定的规定的解开运转时间时，控制部60结束解开运转。即，控制部60为了消除洗衣机的异常状态即洗涤物的偏倚为规定的偏倚以上的状态，控制滚筒洗衣机1的各部分，进行解开运转。解开运转在开始脱水运转之前，或者在洗涤物的偏倚大而重新进行脱水运转时进行。
在进行了洗涤物的解开运转之后，控制部60控制马达30a重新开始脱水过程，使滚筒22的转速阶段性上升。控制部60在进行了解开运转之后重新开始 脱水过程，但是当脱水过程的中断反复进行了两次以上的规定次数时，中止脱水过程。即，在无法通过进行解开运转来消除滚筒22内的洗涤物的偏倚的情况下，控制部60认为即使控制滚筒洗衣机1的各部分也不能消除洗衣机的异常状态，中止脱水过程。然后，在进行了去除臭氧运转之后，控制部60在滚筒洗衣机1的显示部63进行出错显示，进行促使用户进行解开洗涤物的动作的处理。
(去除臭氧运转)
去除臭氧运转是指，在进行除菌漂洗过程之后的脱水过程中止的情况下，使滚筒22内的臭氧浓度降低的运转。本实施方式中，去除臭氧运转在由于洗涤物的偏倚为规定的偏倚以上而中止了脱水过程的情况下进行。具体而言，控制部60使滚筒22连续旋转而使得滚筒22内的洗涤物经过滚筒22的中央部。本实施方式中，控制部60将使滚筒22以规定转速(例如50rpm)旋转的状态持续规定的臭氧去除时间(例如10分钟)。
去除臭氧运转中的滚筒22的规定转速例如为40～60rpm。如上所述，在滚筒22的转速过低的情况下(例如20～30rpm)，位于滚筒22内的下部的洗涤物无法沿滚筒的周壁被举起。此外，在滚筒22的转速过高的情况下(例如70～100rpm)，滚筒22以滚筒22内的洗涤物贴附于滚筒22的周壁的状态进行旋转。
因此，去除臭氧运转中的滚筒22的规定转速被设定为如下的转速：在滚筒22进行旋转时，位于滚筒22内的下部的洗涤物沿滚筒22的周壁被举起，然后，洗涤物离开滚筒22的周壁，以经过滚筒22内的中央部的方式从上方朝向下方落下。在本发明中，滚筒22内的中央部是指，滚筒22内的空间中滚筒22的旋转轴的延长线经过的部分的至少一部分。此外，无论滚筒洗衣机1的滚筒22的容量如何，去除臭氧运转中的滚筒22的规定转速为大致相同的转速。
即使是本实施方式的滚筒洗衣机1，也与现有的洗衣机相同，在脱水过程中止的情况下，如图5的(a)所示，滚筒内的臭氧浓度不够低。
然后，当进行了去除臭氧运转时，如图5的(b)和图5的(c)所示，位于滚筒22内的下部的洗涤物沿滚筒22的周壁被举起，然后，洗涤物离开滚筒的周壁，以经过滚筒22内的中央部的方式从上方朝向下方落下。去除臭氧运转中，反复进行使洗涤物以经过滚筒22内的中央部的方式从上方朝向下方落下的 动作。
如上所述，滚筒22内的中央部处的滚筒22内的臭氧浓度变高，当洗涤物经过滚筒22内的中央部时，位于滚筒22内的中央部的臭氧扩散，容易朝向排气口20c流动，滚筒22内的臭氧从排气口20c排出。
在本实施方式中，如上所述，排气口20c在正面观察时在滚筒22的上方配置于相对于滚筒22内的中央部靠左侧的区域。去除臭氧运转中，滚筒22沿图2所示的箭头的方向旋转。因此，在滚筒22内形成有朝向排气口20c的气流，滚筒22内的臭氧容易朝向排气口20c流动。
本实施方式的滚筒洗衣机1具备：臭氧水供水路55，用于向配置于作为洗衣机主体的箱体10内的滚筒22进行供水；臭氧产生装置58，使臭氧水供水路55内产生臭氧；排气路54，使滚筒22内与箱体10的外部连通；以及作为偏心检测单元的偏心检测部60a，检测滚筒22内的洗涤物的偏倚，所述滚筒洗衣机在进行了在由臭氧产生装置58产生的臭氧被供给至滚筒22的状态下进行漂洗的除菌漂洗过程之后，进行脱水过程，在脱水过程中，在由偏心检测部60a检测出的洗涤物的偏倚为规定的偏倚以上而中止脱水过程的情况下，进行使滚筒22旋转以使滚筒22内的洗涤物经过滚筒22内的中央部的去除臭氧运转。
由此，本实施方式的滚筒洗衣机1中，在进行了除菌漂洗过程之后的脱水过程中，在由于洗涤物的偏倚为规定的偏倚以上而中止脱水过程的情况下，进行使滚筒22旋转以使滚筒22内的洗涤物经过滚筒22内的中央部的去除臭氧运转。因此，在脱水过程中止时，位于滚筒22内的中央部的臭氧容易扩散而从排气路54排出。因此，在脱水过程中止的情况下，使滚筒22内的臭氧浓度在短时间内降低从而能打开滚筒洗衣机1的门12。
在本实施方式的滚筒洗衣机1中，滚筒22配置成能绕沿水平方向或倾斜方向延伸的旋转轴旋转，正面观察时，在滚筒22的上方，在作为相对于滚筒22内的中央部靠一侧的区域的左侧区域，配置有与排气路54连通的排气口20c，去除臭氧运转中，滚筒22以滚筒22的下端部向排气口20c侧移动的方式旋转。
由此，本实施方式的滚筒洗衣机1中，在滚筒22内形成有朝向排气口20c的气流，滚筒22内的臭氧容易朝向排气口20c流动。因此，能将滚筒22内的 臭氧在更短的时间内从排气口20c排出。
接着，根据图6和图7，对滚筒洗衣机1的运转动作进行说明。滚筒洗衣机1例如具有洗涤过程、漂洗过程以及脱水过程，并且能进行不具有烘干过程的洗涤模式的运转。需要说明的是，本实施方式中，对于如下情况进行说明：在洗涤过程结束之前，用户按下操作部61的除菌漂洗按钮61c，投入规定的金额，从而进行使用了由臭氧产生装置58生成的臭氧的除菌漂洗过程。
＜步骤S1：洗涤过程＞
步骤S1中，首先，使用者打开门12，向滚筒22内放入洗涤物，关闭门12。当洗涤过程开始时，控制部60打开用于供给普通洗涤水的供水阀52a，向外筒20供水。此时，控制部60关闭排水阀40a，供给来的水蓄于外筒20内，也蓄于滚筒22内。然后，当供给了规定量的水时，控制部60关闭供水阀52a，驱动(接通)马达30a，使滚筒4旋转。
然后，当规定时间的洗涤动作结束时，控制部60打开排水阀40a，外筒20内的清洗水经由排水软管40向机体外部排出。排水后，控制部60通过马达30a使滚筒22高速旋转，进行将洗涤物中所含的洗涤水脱去的中间脱水。通过中间脱水而从洗涤物中脱去的洗涤水穿过脱水孔22b排出至外筒20内，从排水口部20b向机体外部排出。
＜步骤S2：漂洗过程＞
步骤S1中，当洗涤过程结束时，在步骤S2中进行漂洗过程。当漂洗过程开始时，控制部60关闭排水阀40a，打开用于供给普通洗涤水的供水阀52a，向外筒3供给规定量的漂洗水。然后，当供给了规定量的水时，控制部60关闭供水阀52a，通过马达30a使滚筒22旋转，进行规定时间的滚筒22内的洗涤物的漂洗。
当漂洗结束时，控制部60打开排水阀40a，将外筒20内的漂洗水从排水口部20b向机体外部排出。排水后，通过与上述相同的脱水动作进行中间脱水，脱去洗涤物中所含的漂洗水。该脱去的漂洗水也如上所述从排水口部20b向机体外部排出。
＜步骤S3：除菌漂洗过程＞
步骤S2中，当漂洗过程结束时，在步骤S3中进行除菌漂洗过程。当除菌漂洗过程开始时，控制部60关闭排水阀40a，打开臭氧供水阀55a，经由臭氧供水路55向外筒20供给规定量的漂洗水。此时，控制部60将对臭氧电解部58a的通电从断开切换至接通。由此，臭氧电解部58a将洗涤水电解而产生臭氧。
然后，当供给了规定量的水时，控制部60关闭臭氧水供水阀55a，通过马达30a使滚筒22旋转，使用臭氧水进行规定时间的滚筒22内的洗涤物的除菌漂洗。当除菌漂洗结束时，控制部60打开排水阀40a，外筒20内的漂洗水经由排水口部22b向机体外部排出。
＜步骤S4：脱水过程＞
步骤S3中，当除菌漂洗过程结束时，在步骤S4中进行脱水过程。当脱水过程开始时，控制部60使滚筒22的转速向目标转速上升，当达到目标转速时，进行脱水运转直到经过了规定脱水时间。当脱水过程结束时，控制部60将滚筒22的旋转停止，结束洗涤模式的动作。在脱水过程中脱去的水也如上所述从排水口部22b向机体外部排出。
脱水过程中，在滚筒22内的洗涤物的偏倚大的情况下，脱水过程会中断或中止，根据图7，对包括脱水过程的中断或中止的动作进行说明。
＜步骤S101＞
在步骤S101中，当脱水过程开始时，控制部60控制门锁装置62，使门12处于锁定状态，进行用于消除滚筒22内的洗涤物的偏倚的解开运转。
＜步骤S102＞
当解开运转结束时，在步骤S102中，控制部60使滚筒22的转速向目标转速上升。
＜步骤S103＞
控制部60在使滚筒22的转速上升的同时，判定滚筒22内的洗涤物的偏倚是否比规定的偏倚大。
＜步骤S104＞
步骤S103中，在控制部60判定滚筒22内的洗涤物的偏倚为规定的偏倚以 上的情况下，控制部60停止滚筒22的旋转，中断脱水过程。
＜步骤S105＞
然后，在步骤S105中，控制部60判定是否已将脱水过程中断规定次数并停止。步骤S105中，在控制部60判定没有将脱水过程中断规定次数并停止的情况下，转移至步骤S101，控制部60再次进行解开运转。
＜步骤S106＞
步骤S105中，在控制部60判定已将脱水过程中断规定次数并停止的情况下，进入步骤S106，控制部60中止脱水过程，使滚筒22以50rpm连续旋转，开始去除臭氧运转。
在本实施方式的滚筒洗衣机1中，在脱水过程中由作为偏心检测单元的偏心检测部60a检测出的洗涤物的偏倚为规定的偏倚以上的情况下，中断脱水过程，在进行了解开运转之后重新开始脱水运转的同时，在脱水过程的中断反复进行了两次以上的规定次数的情况下，中止脱水过程。
由此，本实施方式的滚筒洗衣机1中，在脱水过程中断时，在通过解开洗涤物的动作而消除了洗涤物的偏倚的情况下，能不进行去除臭氧运转而继续脱水过程。
本实施方式的滚筒洗衣机1中，去除臭氧运转通过使滚筒22连续旋转来进行。
由此，本实施方式的滚筒洗衣机1中，反复进行将位于滚筒22的下部的洗涤物沿滚筒22的周壁举起，然后，使洗涤物以经过滚筒22的中央部的方式移动的动作。因此，能有效地降低滚筒内的臭氧浓度。
在本实施方式的滚筒洗衣机1中，去除臭氧运转中的滚筒22的转速为40～60rpm。
由此，本实施方式的滚筒洗衣机1中，能将位于滚筒22的下部的洗涤物沿滚筒22的周壁举起，然后，使洗涤物以经过滚筒22的中央部的方式移动。
＜步骤S107＞
在步骤S107中，控制部60判定去除臭氧运转是否持续了10分钟。步骤S107 中，在控制部60判定去除臭氧运转尚未持续10分钟的情况下，进入步骤S106，控制部60继续去除臭氧运转。
＜步骤S108＞
步骤S107中，在控制部60判定去除臭氧运转持续了10分钟的情况下，进入步骤S108，控制部60使滚筒22的旋转停止。
＜步骤S109＞
在步骤S109中，控制部60控制门锁装置62，使门12处于解锁状态。
在本实施方式的滚筒洗衣机1中，具备将打开/关闭滚筒22的开口部22a的门12切换为锁定状态或解锁的门锁装置62，门锁装置62以如下方式被控制：在进行脱水过程时使门12处于锁定状态，并且在脱水过程中止的情况下，在进行了去除臭氧运转之后，使门12处于解锁状态。
由此，本实施方式的滚筒洗衣机1中，在脱水过程中止的情况下，通过进行去除臭氧运转而使得滚筒22内的臭氧浓度降低之后，进行门12的解锁。
＜步骤S110＞
然后，在步骤S110中，控制部60使显示部63进行出错显示，进行促使用户进行解开洗涤物的动作的处理。
＜步骤S111＞
步骤S103中，在控制部60判定滚筒22内的洗涤物的偏倚比规定的偏倚小的情况下，进入步骤S111，控制部60继续脱水过程，使滚筒22的旋转上升至目标转速，并判定是否经过了规定脱水时间。
＜步骤S112＞
步骤S111中，在控制部60判定经过了规定脱水时间的情况下，在步骤S112中，控制部60使滚筒22的旋转停止。
＜步骤S113＞
然后，在步骤S113中，控制部60控制门锁装置62，使门12处于解锁状态。
以上，对本发明的实施方式进行了说明，但是各部分的具体结构不局限于 上述的实施方式。
上述实施方式中，滚筒22绕沿相对于水平方向倾斜方的向延伸的旋转轴旋转，但是滚筒22也可以绕沿水平方向延伸的旋转轴旋转。
上述实施方式中，脱水过程的中断反复进行两次以上的规定次数之后，脱水过程中止，进行去除臭氧运转，但是也可以在脱水过程中断的情况下不实施解开运转，脱水过程中止，进行去除臭氧运转。
上述实施方式中，在去除臭氧运转中，滚筒22连续旋转，但是滚筒22也可以间歇旋转。
上述实施方式中，与排气路54连通的排气口20c在正面观察时在滚筒22的上方配置于相对于滚筒22内的中央部靠一侧的区域，在去除臭氧运转中，滚筒22以滚筒22的下端部向排气口20c侧移动的方式旋转，但在去除臭氧运转中，滚筒22也可以以滚筒22的下端部向排气口20c的相反侧移动的方式旋转。此外，在去除臭氧运转中，也可以交替进行使滚筒22的下端部向排气口20c侧移动的方向的旋转和使滚筒22的下端部向排气口20c的相反侧移动的方向的旋转。
上述实施方式中，偏心检测部60a根据来自振动开关31的检测信号来检测滚筒22内的洗涤物的偏倚(偏心)，但是检测滚筒22内的洗涤物的偏倚的方法不局限于此。
上述实施方式中，对不具有烘干功能的滚筒洗衣机1进行了说明，但是本发明也能适用于具有烘干功能的滚筒洗衣机。在具有烘干功能的滚筒洗衣机中，例如在烘干过程用的风扇发生故障的情况下，能得到本发明的效果。
其他的结构也能在不脱离本发明的技术思想的范围内进行各种变形。

Claims (5)

  1. 一种滚筒洗衣机，具备：供水路，用于向配置于洗衣机主体内的滚筒进行供水；臭氧产生装置，使所述供水路内产生臭氧；排气路，使所述滚筒内与所述洗衣机主体的外部连通；以及偏心检测单元，检测所述滚筒内的洗涤物的偏倚，所述滚筒洗衣机在进行了在由所述臭氧产生装置产生的臭氧被供给至所述滚筒的状态下进行漂洗的除菌漂洗过程之后，进行脱水过程，
    所述滚筒洗衣机的特征在于，
    在脱水过程中，在由所述偏心检测单元检测出的洗涤物的偏倚为规定的偏倚以上而中止脱水过程的情况下，进行使所述滚筒旋转以使所述滚筒内的洗涤物经过所述滚筒内的中央部的去除臭氧运转。
  2. 根据权利要求1所述的滚筒洗衣机，其特征在于，
    所述去除臭氧运转通过使所述滚筒连续旋转来进行。
  3. 根据权利要求2所述的滚筒洗衣机，其特征在于，
    所述去除臭氧运转中的所述滚筒的转速为40～60rpm。
  4. 根据权利要求1～3中任一项所述的滚筒洗衣机，其特征在于，
    所述滚筒配置成能绕沿水平方向或倾斜方向延伸的旋转轴旋转，正面观察时，在所述滚筒的上方，在相对于所述滚筒内的中央部靠一侧的区域，配置有与所述排气路连通的排气口，所述去除臭氧运转中，所述滚筒以所述滚筒的下端部向所述排气口侧移动的方式旋转。
  5. 根据权利要求1～4中任一项所述的滚筒洗衣机，其特征在于，
    具备将打开/关闭所述滚筒的开口部的门切换为锁定状态或解锁状态的门锁装置，
    所述门锁装置以如下方式被控制：在进行脱水过程时使所述门处于锁定状态，并且在脱水过程中止的情况下，在进行了所述去除臭氧运转之后，使所述门处于解锁状态。
PCT/CN2019/112539 2018-10-30 2019-10-22 滚筒洗衣机 WO2020088309A1 (zh)

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