WO2020003760A1 - Machine à laver - Google Patents

Machine à laver Download PDF

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Publication number
WO2020003760A1
WO2020003760A1 PCT/JP2019/018655 JP2019018655W WO2020003760A1 WO 2020003760 A1 WO2020003760 A1 WO 2020003760A1 JP 2019018655 W JP2019018655 W JP 2019018655W WO 2020003760 A1 WO2020003760 A1 WO 2020003760A1
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WO
WIPO (PCT)
Prior art keywords
water
washing
tub
tank
temperature
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Application number
PCT/JP2019/018655
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English (en)
Japanese (ja)
Inventor
池水　麦平
脇田　克也
Original Assignee
パナソニックＩｐマネジメント株式会社
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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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2020527254A priority Critical patent/JPWO2020003760A1/ja
Publication of WO2020003760A1 publication Critical patent/WO2020003760A1/fr

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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the present invention relates to a washing machine for washing clothes and the like.
  • washing machines equipped with a tub washing course have been considered in order to wash the above-mentioned dirt.
  • the washing tub does not contain laundry such as clothes. Further, when a laundry detergent is used in the tub washing course, bubbles are generated in the washing tub, and a load is applied to a motor for rotating and driving the washing tub, resulting in power loss. In addition, when the water in the washing machine is drained, bubbles remain in the washing tub, which causes soiling of the washing tub. Therefore, a washing machine configured to remove the detergent remaining in the washing tub at the beginning of the tub washing course has been proposed (for example, see Patent Document 1).
  • Patent Literature 1 does not use the cleaning power of the detergent for tub cleaning because the detergent is removed in the tub cleaning course at an early stage of operation. Further, in the case of Patent Literature 2, at the time of washing the tub, it is necessary to use a dedicated detergent for tub washing with reduced foaming, in addition to the laundry detergent used for washing clothes.
  • the present invention provides a washing machine capable of washing a tub with a laundry detergent used for washing clothes and the like.
  • a washing machine of the present invention includes a washing tub rotatably provided in a water tub, a motor for rotating and driving the washing tub, a water supply unit for supplying water to the water tub, a drainage unit for draining water in the water tub, A heating unit that heats the water stored in the tub, a temperature detection unit that detects the temperature of the water in the water tub, and a control unit that controls the washing operation and the tub cleaning operation.
  • the control unit performs the charging of the laundry detergent into the tub, the supply of water in the tub by the water supply unit, and the heating of the water stored in the tub by the heating unit.
  • the control unit is configured to, when the temperature detecting unit detects that the water in the water tub is heated to a predetermined temperature, control the rotation of the washing tub and stir the water in the water tub.
  • the water containing the laundry detergent is agitated while the water temperature is rising.
  • a washing machine that suppresses foaming of the detergent and can wash the tub with the laundry detergent.
  • FIG. 1 is a schematic configuration diagram of a washing machine according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram of the washing machine.
  • FIG. 3 is a time chart showing the operation of the washing machine during the tub washing operation.
  • FIG. 4 is a graph showing the relationship between the temperature of the washing machine and the sterilization effect.
  • FIG. 5 is a time chart showing an operation during a tub cleaning operation of the washing machine according to Embodiment 2 of the present invention.
  • FIG. 1 is a schematic configuration diagram of a washing machine according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram of the washing machine.
  • FIG. 3 is a time chart showing the operation of the washing machine during the tub washing operation.
  • FIG. 4 is a graph showing the relationship between the temperature of the washing machine and the sterilization effect.
  • the washing machine according to the first embodiment is a so-called drum type washing machine in which the rotating shaft 3a of the drum 3, which is the washing tub 3, is disposed in a horizontal direction (including an inclination).
  • the washing machine includes a housing 1, a water tub 2 elastically supported in the housing 1, and the like.
  • the water tub 2 includes a cylindrical drum 3 with a bottom, which is a washing tub 3 rotatably provided inside.
  • the drum 3 is arranged such that the rotating shaft 3a is inclined forward (upper left in the drawing) by an angle ⁇ (for example, 10 degrees).
  • the door 25 is defined as the front
  • the motor 7 is defined as the rear
  • the detergent injection device 10 is defined as the upper side
  • the drainage channel 12 is defined as the lower side.
  • the drum 3 includes a plurality of baffles 4 protruding inward toward the rotation center of the drum 3 and a number of small holes 5 communicating with the inside of the water tank 2 on the inner peripheral side surface. Further, the drum 3 includes an opening 6 provided on the front side. Through the opening 6, the user can load laundry such as clothes (hereinafter sometimes referred to as “substance to be washed”) into the drum 3 and take it out of the drum 3.
  • laundry such as clothes
  • the water tank 2 is provided on the rear surface and includes a motor 7 for driving the drum 3 to rotate.
  • the motor 7 is an inverter-controlled, for example, a brushless DC motor.
  • the rotation speed of the motor 7 is variably driven by inverter control.
  • the water supply pipe 8 for supplying the washing water into the water tub 2 is connected to, for example, a faucet (not shown) of the water supply and includes a water supply valve 9 which is a water supply unit.
  • the water supply pipe 8 is connected in communication with a detergent introduction device 10 for introducing a detergent.
  • the detergent introduction device 10 is connected to the water tank 2 through a water supply channel 11.
  • the washing water flows from the water supply pipe 8 through the detergent introduction device 10 and the water supply passage 11 and is supplied into the water tub 2.
  • the washing water includes not only water in which the detergent is dissolved but also mere water.
  • the drainage path 12 includes a drainage valve 13 which is a drainage part, a drainage filter 14, and the like.
  • the drain filter 14 is disposed at a position where the washing water circulates during washing, and collects, for example, a button that has come off the object to be washed.
  • the drain filter 14 is provided detachably from the front side of the housing 1.
  • the circulation water channel 16 is provided so as to guide the washing water in the water tub 2 from the drain port 15 of the water tub 2 to the opening 6 side of the drum 3 located in the front part of the water tub 2.
  • the circulation channel 16 includes a pump 17 for circulating washing water, a discharge port 18, and the like.
  • the pump 17 is installed at the bottom in the housing 1 and is arranged downstream of the drain filter 14. By driving the pump 17, the washing water in the water tub 2 is discharged from the discharge port 18 toward the inside of the drum 3.
  • the heater 19 constitutes a heating unit for heating water stored in the water tank 2, and is disposed near the bottom in the water tank 2.
  • the heater 19 is provided at a position where the heater 19 is submerged when a predetermined amount of water is stored in the water tank 2.
  • Water amount detector 20 detects the amount of washing water supplied into water tub 2.
  • the temperature detector 21 is disposed near the drain 15 of the water tank 2 and detects the temperature of water in the water tank 2.
  • the temperature detection unit 21 is configured by, for example, a thermistor.
  • the cloth amount detection unit 23 detects the amount of the object to be washed put into the drum 3.
  • the rotation detecting unit 24 detects a driving amount of the drum 3, such as a rotation speed.
  • the control unit 22 is disposed in the housing 1 and controls various components based on input information to execute a washing operation, a tub washing operation, and the like.
  • the control unit 22 controls the amount of the washing target detected by the cloth amount detection unit 23, the amount of the washing water detected by the water amount detection unit 20, and the temperature detection unit 21.
  • the detected water temperature, the driving amount (for example, the number of rotations) of the drum 3 detected by the rotation detecting unit 24, and the like are input as information.
  • control unit 22 controls the motor 7, the water supply valve 9, the drain valve 13, the pump 17, the heater 19, and the like based on the input information, and sequentially controls a washing step, a rinsing step, a dehydration step, and the like. Perform a washing operation.
  • control unit 22 executes a tank cleaning operation to be described later, and cleans the water tank 2, the drum 3, the circulation water passage 16, and the like.
  • the user When using the washing machine, the user first opens the door 25 provided on the front surface of the housing 1 so as to be openable and closable. As a result, the object to be cleaned can be taken in and out through the opening 6 of the drum 3 provided on the front side of the drum 3.
  • the operation display unit 26 is provided at the upper part on the front side of the housing 1.
  • the user can input settings for operating the washing machine via the operation display unit 26. Further, the operation display unit 26 displays the setting contents and the operation status of the washing machine. As a result, the user can grasp the setting contents and the driving conditions, and can correct the setting contents as necessary.
  • the washing machine of the first embodiment is configured.
  • the user opens the door 25 and throws the article to be washed into the drum 3 through the opening 6.
  • the user turns on a power switch (not shown) of the operation display unit 26 and presses a start switch (not shown), for example.
  • a power switch not shown
  • a start switch not shown
  • a washing step is executed.
  • the controller 22 first detects the amount (for example, the weight) of the object to be washed put into the drum 3 by the cloth amount detector 23. Specifically, the cloth amount detection unit 23 detects the amount of the object to be cleaned from the amount of torque applied to the motor 7 and the current value of the motor 7 when the motor 7 rotates the drum 3.
  • the cloth amount detection unit 23 detects the amount of the object to be cleaned from the amount of torque applied to the motor 7 and the current value of the motor 7 when the motor 7 rotates the drum 3.
  • control unit 22 sets the amount of water to be supplied into the water tank 2 according to the amount of the object to be cleaned detected by the cloth amount detection unit 23. Further, the control unit 22 sets a time for executing each step such as a washing step, a rinsing step, and a dehydration step. Further, the control unit 22 determines a guideline detergent amount from a preset detergent amount according to the amount of the object to be cleaned, and displays the detergent amount on the operation display unit 26. At this time, the user puts the laundry detergent in a detergent container (not shown) in the detergent feeding device 10 in advance.
  • control unit 22 automatically injects an appropriate amount of the detergent in the detergent container into the water tank 2 by a tube pump (not shown) in accordance with the amount of the object to be washed.
  • control unit 22 opens the water supply valve 9.
  • the water supplied from the tap water flows through the water supply path 11 as the washing water together with the injected detergent via the detergent injection device 10 and is supplied into the water tank 2.
  • the drain valve 13 is closed, the washing water collects at the bottom in the water tub 2.
  • the washing water accumulated in the water tub 2 flows into the drum 3 from the small holes 5 on the outer peripheral side surface of the drum 3.
  • the user may manually input the laundry detergent according to the standard of the detergent amount displayed on the operation display unit 26 without performing the automatic injection of the detergent.
  • the control unit 22 detects the amount of water supplied into the water tank 2 with the water amount detection unit 20. Then, the control unit 22 closes the water supply valve 9 when the set amount of water is supplied according to the amount of the object to be cleaned. At this time, the control unit 22 drives the drum 3 to rotate in one direction by the motor 7 at a rotation speed of, for example, 20 rpm so that the cleaning target rolls in the drum 3 during water supply. Thereby, the penetration of the washing water into the object to be washed is accelerated. At this time, the amount of water in the water tub 2 generally drops from the set water level due to the absorption of the washing water into the object to be washed. Therefore, the control unit 22 opens the water supply valve 9 again, replenishes the water tank 2 with a reduced amount of water, and returns to the set water level. Note that this does not apply if the water level does not drop from the set water level.
  • the control unit 22 drives the pump 17.
  • the washing water accumulated at the bottom in the water tub 2 is guided from the drain port 15 to the circulation channel 16.
  • the washing water guided to the circulation channel 16 flows through the circulation channel 16.
  • the fluid is discharged from the discharge port 18 of the circulation water channel 16 into the drum 3.
  • the discharged washing water flows out of the small hole 5 of the drum 3 into the water tub 2 and circulates again from the drain port 15 through the circulation channel 16.
  • the cleaning water sufficiently permeates the object to be cleaned.
  • the control unit 22 executes so-called slap washing of the object to be cleaned.
  • the tap washing is performed by alternately rotating the drum 3 forward and reverse at predetermined rotation speeds (for example, 42 rpm) by the motor 7 at predetermined rotation speeds (for example, 15 seconds).
  • predetermined rotation speeds for example, 42 rpm
  • the object to be cleaned is first lifted by the baffle 4 in the rotation direction of the drum 3. Thereafter, the object to be washed falls from the upper portion in the lifted drum 3. Thereby, the object to be cleaned is cleaned.
  • control unit 22 executes the washing step for a set predetermined time (for example, 10 minutes). Thereafter, the control unit 22 opens the drain valve 13 and discharges the washing water from the washing machine to the outside of the machine. Thereby, the washing step of the washing operation ends.
  • control unit 22 executes the rinsing step and the dehydrating step in this order. Then, the control unit 22 ends the washing operation. Detailed description of the rinsing step and the dehydration step is omitted.
  • the above-mentioned washing water is a general term for water used in washing machines. That is, the washing water includes detergent-free water supplied to the washing machine, washing water containing the supplied detergent, and rinsing water for washing away detergent components and dirt in the rinsing step.
  • the tub washing operation is an operation that is performed separately from the washing operation to wash the water tank 2, the drum 3, the circulation water passage 16, and the like.
  • the tank cleaning operation includes steps such as a tank cleaning step, a draining step, a rinsing step, and a draining step, which are sequentially executed.
  • the user first turns on the power switch (not shown) of the operation display unit 26 and sets the tank cleaning operation. After the setting, the user presses, for example, a start switch (not shown). Thereby, the tank cleaning operation is started.
  • a tank cleaning step is performed.
  • the control unit 22 opens the water supply valve 9. Thereby, the water supplied from the tap water is supplied into the water tank 2 via the detergent introduction device 10. At this time, the detergent for washing is put into the water tub 2 as in the washing step of the washing operation.
  • the water collected at the bottom of the water tank 2 flows into the drum 3 from the small holes 5 on the outer peripheral side surface of the drum 3.
  • the control unit 22 detects the amount of water supplied into the water tank 2 with the water amount detection unit 20.
  • the amount of water supplied is set to, for example, two levels of a water level “low” and “high”, and in the tank cleaning step, the water level is set to “low”. Is done. That is, when the water amount detection unit 20 detects the predetermined water level “low”, the control unit 22 closes the water supply valve 9.
  • the water level “low” corresponds to the amount of the heater 19 submerged in the supplied water and the lower part of the drum 3 contacting the water.
  • the user may set the amount of the laundry detergent to be supplied to the detergent supply device 10 in advance according to the type of the detergent (eg, powder or liquid).
  • the type of the detergent eg, powder or liquid.
  • the control unit 22 energizes the heater 19 to heat the water at the temperature T0 stored at the bottom of the water tank 2 to the set temperature T1. Specifically, the control unit 22 controls the amount of power to the heater 19 and the like based on the output (detected temperature) of the temperature detection unit 21. Thereby, water evaporates with heating, and steam is generated in the water tank 2. At this time, since the lower part of the drum 3 is in contact with the heated warm water, the drum 3 is directly heated by the warm water. As a result, the drum 3 having a large mass and a large heat capacity is efficiently heated, and the temperature in the water tank 2 can be quickly increased.
  • the control unit 22 drives the drum 3 to rotate at the rotation control S0 almost simultaneously with energization of the heater 19.
  • the peripheral side surface of the drum 3 is heated by the hot water.
  • the rotation of the drum 3 stirs the hot water, thereby promoting the generation of steam. That is, the drum 3 is driven to rotate while the temperature of the water in the water tank 2 is increased by heating. Therefore, the inside of the water tank 2 can be quickly heated from a low temperature stage.
  • the rotation control S0 is a control operation that repeats, for example, “20 rpm, driving for 5 seconds, stopping 25 seconds”.
  • the control unit 22 controls the heater 19 so as to maintain the temperature near the set temperature T1 for a predetermined time. For example, when the set temperature T1 is 60 ° C., the control unit 22 turns off the heater 19 when the water temperature reaches 60 ° C. When the water temperature drops to 59 ° C., the control unit 22 turns on the heater 19 again. The above ON / OFF control is repeated to maintain the water temperature at around 60 ° C., which is the set temperature T1.
  • the control unit 22 drives the drum 3 by the rotation control S2.
  • the rotation control S2 is a control operation that repeats, for example, “40 rpm, driving for 10 seconds, and stopping for 10 seconds”. Thereby, the hot water is stirred by the rotation of the drum 3. As a result, the water tank 2, the drum 3, and the like are effectively washed with the warm water being stirred.
  • the inside of the water tank 2 can be sterilized by heating the water tank 2 with steam or hot water.
  • the higher the temperature the more advantageous.
  • the set temperature T1 is set to a high temperature, it is necessary to consider the heat resistant temperature of the resin material that is the structure of the washing machine. Furthermore, it takes time to heat the water supplied into the water tank 2 to the high set temperature T1. Therefore, the set temperature T1 is set in the above-mentioned temperature range because the same effect can be exhibited in a shorter time and at a low temperature as at a high temperature.
  • FIG. 4 is a graph showing the relationship between the heating temperature and the holding time for mold and the bactericidal effect.
  • the set temperature T1 is set to the above-mentioned 50 ° C.
  • the control unit 22 drives the pump 17. Thereby, the heated water in the water tank 2 flows and circulates through the circulation channel 16. Specifically, the heated water is sucked from the drain port 15 at the bottom of the water tank 2, passes through the drain filter 14, and is guided to the circulation channel 16. The water flowing into the circulation channel 16 is discharged from the discharge port 18 into the drum 3. Then, the water discharged into the drum 3 flows out of the small hole 5 of the drum 3 into the water tank 2 and circulates again from the drain port 15 through the circulation channel 16.
  • the pump 17 be driven at a low speed so that bacteria and mold come into contact with the warm water for a long time. Specifically, it is preferable to drive the pump 17 so that the hot water flows at a speed that allows the hot water to flow in the circulation water channel 16 without staying.
  • the pump 17 may be driven continuously or intermittently.
  • control unit 22 executes the bath cleaning step for a predetermined time set in advance (for example, 10 minutes after the temperature reaches the set temperature T1), and stops the energization of the heater 19.
  • control unit 22 executes a drain step of the tank cleaning operation.
  • the control unit 22 opens the drain valve 13 as shown in FIG. As a result, water containing dirt in the water tank 2 and the circulation water passage 16 is discharged to the outside of the machine through the drain passage 12.
  • control unit 22 executes a rinsing step following the drain step.
  • the rinsing step is a step in which the detergent and the dirt removed in the tank cleaning step are peeled off from the wall of the water tank 2 and the drum 3 and washed away.
  • the control unit 22 opens the water supply valve 9 to supply water into the water tank 2.
  • the water level to be supplied is set to “high”, which is higher than the water level “low” at the time of the tank cleaning step.
  • the control unit 22 closes the water supply valve 9.
  • the lower portion of the drum 3 is fully immersed in the water.
  • the control unit 22 does not operate the detergent introduction device 10 and does not supply the laundry detergent into the water tub 2. Therefore, the water supplied into the water tank 2 is tap water.
  • the control unit 22 controls the drum 3 with the rotation control S3 while the drum 3 is immersed in water.
  • the rotation control S3 is, for example, an operation of controlling to rotate leftward at 120 rpm for one minute and then rotate rightward at 100 rpm for one minute.
  • the water in the water tank 2 that has been increased to the water level “high” by the water supply is wound upward by the high-speed rotation of the drum 3 and reaches the inner surface on the upper side of the water tank 2.
  • the control unit 22 drives the pump 17. Thereby, the water in the water tank 2 flows and circulates through the circulation channel 16. As a result, dirt and detergent such as bacteria, mold, biofilm and the like, which have been killed in the tank washing step and adhere to the wall surface in the circulation water channel 16 are washed away.
  • control unit 22 executes the above-described rinsing step for a predetermined period of time (for example, 30 minutes).
  • control unit 22 executes a drain step following the rinsing step.
  • the control unit 22 first opens the drain valve 13. As a result, the water in the water tank 2 and the circulation channel 16 including the dirt washed out in the rinsing step is drained out of the machine.
  • control unit 22 rotates the drum 3 at a high speed (for example, 300 rpm) for a short time, as shown in FIG. As a result, water droplets and the like adhering to the drum 3 are blown into the water tank 2 by centrifugal force, and are discharged out of the machine via the drain path 12. Then, the tank cleaning operation ends.
  • a high speed for example, 300 rpm
  • the washing machine includes the drum 3 rotatably provided in the water tub 2, the motor 7 for driving the drum 3 to rotate, the water supply valve 9 for supplying water to the water tub 2, the water tub 2 A drain valve 13 for draining water in the tank, a heater 19 for heating water stored in the water tank 2, a temperature detection unit 21 for detecting the temperature of water in the water tank 2, and controlling a washing operation and a tub washing operation.
  • the control unit 22 is included. In the tub washing operation, the control unit 22 supplies water into the tub 2 by the water supply valve 9, supplies the laundry detergent into the tub 2, and heats the water stored in the tub 2 by the heater 19. Further, when the temperature detecting section 21 detects that the water in the water tank 2 has been heated to a predetermined temperature by the temperature detecting section 21, the control section 22 drives the drum 3 to rotate and agitates the water in the water tank 2. .
  • the water containing the laundry detergent is stirred in a state where the water temperature is raised. Thereby, foaming of the laundry detergent is suppressed, and the tub can be washed with the laundry detergent without using a dedicated detergent for washing the tub.
  • the washing machine of the first embodiment includes a circulating water passage 16 provided to guide water in water tub 2 from the bottom of water tub 2 into drum 3, and a pump 17 for circulating water in water tub 2 through circulating water passage 16.
  • the control part 22 is comprised so that the pump 17 may be driven and the water in the water tank 2 may be circulated through the circulation water channel 16 in the tank cleaning operation.
  • the heated water is caused to flow through the circulation channel 16 to kill bacteria and fungi that live in the circulation channel 16. Further, dirt such as dead bacteria, mold and biofilm is peeled off from the circulation channel 16 and discharged outside the machine. This makes it possible to clean the inner surface of the piping around the water such as the circulating water passage 16 where the humidity is high and it is likely to be a habitat for bacteria and mold. As a result, in the next washing operation, re-adhesion of dirt to clothes can be suppressed.
  • Embodiment 2 a washing machine according to Embodiment 2 of the present invention will be described with reference to FIG.
  • the washing machine according to the second embodiment differs from the washing machine according to the first embodiment in that a washing detergent is added after the water in the water tub 2 is heated to a predetermined temperature in a tub washing step of the tub washing operation. different. Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and the detailed description uses the first embodiment.
  • FIG. 5 is a time chart showing the operation of the washing machine in the tub washing operation in Embodiment 2 of the present invention.
  • the tank cleaning operation according to the second embodiment includes, as in the first embodiment, a tank cleaning step, a drain step, a rinsing step, a drain step, and the like, and is sequentially executed.
  • the water supply valve 9 is opened. Thereby, the water supplied from the tap water flows through the water supply pipe 8, and is supplied into the water tank 2 via the detergent introduction device 10 and the water supply passage 11. At this time, although the detergent for washing is previously introduced into the detergent introducing device 10, the control unit 22 controls the detergent stored in the water tub 2 until the water is heated to a predetermined temperature (set temperature T1). The charging device 10 is not operated. Therefore, at the initial stage of water supply, the laundry detergent is not supplied into the water tub 2 and only water is supplied.
  • the control unit 22 detects that the water level is “low” by the water amount detection unit 20, the control unit 22 energizes the heater 19 to heat the water at the temperature T0 stored in the bottom of the water tank 2.
  • the control unit 22 drives the drum 3 to rotate under the rotation control S1.
  • the peripheral side surface of the drum 3 is heated by the hot water.
  • the rotation of the drum 3 agitates the heated water, thereby promoting the generation of steam. That is, the drum 3 is driven to rotate while the temperature of the water in the water tank 2 is increased by heating. Therefore, the inside of the water tank 2 can be quickly heated from the stage where the inside of the water tank 2 is at a low temperature.
  • the laundry detergent is not put into the water tub 2. Therefore, the rotation speed of drum 3 can be set higher than that in the case where the laundry detergent according to the first embodiment is supplied. Therefore, in the second embodiment, the drum 3 is controlled not by the rotation control S0 but by the rotation control S1.
  • the rotation control S1 is a control operation for continuously driving at, for example, 40 rpm.
  • the controller 22 activates the detergent dispenser 10 and dispenses the laundry detergent into the water tub 2.
  • the control unit 22 simultaneously drives the drum 3 under the rotation control S2.
  • the rotation control S2 is a control operation that repeats, for example, “40 rpm, driving for 10 seconds, and stopping for 10 seconds”, as in the first embodiment.
  • the washing machine has the detergent charging device 10 for charging the laundry detergent into the water tub 2.
  • the control unit 22 is configured so that when the water stored in the water tub 2 is heated to a predetermined temperature, the detergent input device 10 inputs the laundry detergent.
  • the laundry detergent when the temperature of the water is low, the laundry detergent is not supplied, so that the foaming does not occur even when the drum 3 is driven to rotate while the temperature of the water is rising. Therefore, the water tank 2 and the drum 3 can be washed with the water being heated. In addition, the stirring time of the water stored in the water tank 2 by the rotation of the drum 3 can be increased. Therefore, the temperature in the water tank 2 can be efficiently raised during the temperature rise of the water.
  • the washing machine of the present invention has a washing tub rotatably provided in a water tub, a motor for driving the rotation of the washing tub, a water supply unit for supplying water to the water tub, and draining water in the water tub.
  • a heating unit that heats the water stored in the water tank, a temperature detection unit that detects the temperature of the water in the water tank, and a control unit that controls the washing operation and the tub cleaning operation.
  • the control unit performs the charging of the laundry detergent into the tub, the supply of water in the tub by the water supply unit, and the heating of the water stored in the tub by the heating unit.
  • the control unit is configured to, when the temperature detecting unit detects that the water in the water tub is heated to a predetermined temperature, rotate the washing tub and stir the water in the water tub.
  • the water containing the laundry detergent is stirred in a state where the water temperature is raised. Thereby, foaming of the laundry detergent is suppressed, and the tub can be washed with the laundry detergent without using a dedicated detergent for washing the tub.
  • the washing machine of the present invention also has a detergent feeding device for feeding a laundry detergent into a water tub. Then, it is desirable that the control unit inputs the laundry detergent by the detergent input device when the water stored in the water tub is heated to a predetermined temperature.
  • the laundry detergent when the water temperature is low, the laundry detergent is not supplied, so that the washing tub is not foamed even when the washing tub is driven to rotate while the temperature of the water is rising. Therefore, the water tub and the washing tub can be washed with the water being heated. Further, the stirring time of the water stored in the water tank can be increased. Therefore, the temperature in the water tank can be efficiently raised during the temperature rise.
  • the washing machine of the present invention has a circulating water channel that guides water in the water tub from the bottom of the water tub into the washing tub, and a pump that circulates the water in the water tub through the circulating water channel. And it is desirable that the control unit drives the pump in the tank cleaning operation to circulate the water in the water tank through the circulation water channel.
  • the heated water can be flown into the circulation channel to kill bacteria and fungi that live in the circulation channel. Further, dirt such as dead bacteria, mold, biofilm and the like can be peeled off from the circulation channel and discharged out of the machine. This makes it possible to clean the inner surface of the piping around the water, which is likely to be a habitat for bacteria and mold due to high humidity. As a result, in the next washing operation, re-adhesion of dirt to clothes can be suppressed.
  • the tub can be washed using a laundry detergent. Therefore, it is useful for a washing machine or the like in which running cost and the like are desired to be suppressed.

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  • Control Of Washing Machine And Dryer (AREA)

Abstract

La présente invention concerne une machine à laver comprenant : un tambour (3) placé dans un réservoir d'eau (2) ; un moteur (7) qui entraîne le tambour (3) ; une soupape d'alimentation en eau (9) pour fournir de l'eau au réservoir d'eau (2) ; une soupape d'évacuation d'eau (13) pour évacuer l'eau de lavage du réservoir de lavage (2) ; un dispositif de chauffage (19) qui chauffe l'eau dans le réservoir d'eau (2) ; une unité de détection de température (21) qui détecte la température de l'eau dans le réservoir d'eau (2) ; et une unité de commande (22) qui commande une opération de lavage et une opération de lavage de réservoir. L'unité de commande (22) pendant l'opération de lavage de réservoir réalise : le chargement du détergent de lavage dans le réservoir d'eau (2) ; l'alimentation en eau du réservoir d'eau (2) au moyen de la soupape d'alimentation en eau (9) ; et le chauffage de l'eau dans le réservoir d'eau (2) au moyen du dispositif de chauffage (19). Lorsque l'unité de détection de température (21) a détecté que l'eau dans le réservoir d'eau (2) a été chauffée à une température prédéterminée, le tambour (3) est commandé en rotation et l'eau dans le réservoir d'eau (2) est agitée. De cette manière, il est possible d'effectuer un lavage de réservoir à l'aide du détergent de lavage pour laver des vêtements et analogues.
PCT/JP2019/018655 2018-06-25 2019-05-10 Machine à laver WO2020003760A1 (fr)

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JP2020527254A JPWO2020003760A1 (ja) 2018-06-25 2019-05-10 洗濯機

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JP2018119899 2018-06-25
JP2018-119899 2018-06-25

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WO2020003760A1 true WO2020003760A1 (fr) 2020-01-02

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PCT/JP2019/018655 WO2020003760A1 (fr) 2018-06-25 2019-05-10 Machine à laver

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TW (1) TW202001028A (fr)
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Publication number Priority date Publication date Assignee Title
JP2022033597A (ja) * 2020-08-17 2022-03-02 日立グローバルライフソリューションズ株式会社 洗濯機
JP2023021325A (ja) * 2020-07-31 2023-02-10 アイリスオーヤマ株式会社 洗濯機
JP7469825B2 (ja) 2020-07-31 2024-04-17 アイリスオーヤマ株式会社 洗濯機

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JP2008104714A (ja) * 2006-10-26 2008-05-08 Toshiba Corp 洗濯機
JP2011000318A (ja) * 2009-06-19 2011-01-06 Toshiba Corp 洗濯機
JP2013226337A (ja) * 2012-04-27 2013-11-07 Hitachi Appliances Inc 洗濯機

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JP2004321306A (ja) * 2003-04-22 2004-11-18 Sharp Corp 洗濯機
JP4886656B2 (ja) * 2007-11-05 2012-02-29 株式会社稲本製作所 連続式水洗機及び連続式水洗機の消毒方法

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2008104714A (ja) * 2006-10-26 2008-05-08 Toshiba Corp 洗濯機
JP2011000318A (ja) * 2009-06-19 2011-01-06 Toshiba Corp 洗濯機
JP2013226337A (ja) * 2012-04-27 2013-11-07 Hitachi Appliances Inc 洗濯機

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023021325A (ja) * 2020-07-31 2023-02-10 アイリスオーヤマ株式会社 洗濯機
JP7319738B2 (ja) 2020-07-31 2023-08-02 アイリスオーヤマ株式会社 洗濯機
JP7469825B2 (ja) 2020-07-31 2024-04-17 アイリスオーヤマ株式会社 洗濯機
JP2022033597A (ja) * 2020-08-17 2022-03-02 日立グローバルライフソリューションズ株式会社 洗濯機
JP7281437B2 (ja) 2020-08-17 2023-05-25 日立グローバルライフソリューションズ株式会社 洗濯機

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JPWO2020003760A1 (ja) 2021-07-08

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