WO2024099130A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2024099130A1
WO2024099130A1 PCT/CN2023/127529 CN2023127529W WO2024099130A1 WO 2024099130 A1 WO2024099130 A1 WO 2024099130A1 CN 2023127529 W CN2023127529 W CN 2023127529W WO 2024099130 A1 WO2024099130 A1 WO 2024099130A1
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WO
WIPO (PCT)
Prior art keywords
tub
washing
control unit
drum
value
Prior art date
Application number
PCT/CN2023/127529
Other languages
English (en)
French (fr)
Inventor
季恒
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
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 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Publication of WO2024099130A1 publication Critical patent/WO2024099130A1/zh

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Definitions

  • the present invention relates to a washing machine.
  • the washing machine may have only the function of washing laundry, or may have the function of drying laundry in addition to the washing function.
  • the washing machine with the drying function may be called a washing-drying machine.
  • washing machine that can perform a tub cleaning operation to clean an outer tub and an inner tub (a longitudinal axis type washing and dehydrating tub, a transverse axis type drum) disposed in the outer tub using a dedicated tub cleaning detergent.
  • a tub cleaning operation By performing the tub cleaning operation, black mold, detergent residues, etc. attached to the outer wall surface of the inner tub and the inner wall surface of the outer tub are removed.
  • Patent Document 1 describes a washing machine that displays a signal with a cleaning lamp when the number of times the washing machine has been operated reaches a preset number of times, so that a user can see the signal and execute the operation in a tub washing mode.
  • biofilms are formed due to the attachment of detergent residues and dirt, and Aspergillus niger can reproduce by using the biofilms as nutrients.
  • the washing operation including washing and drying
  • the generation of biofilms and the generation of Aspergillus niger are different.
  • detergent water used in the cleaning process
  • biofilm is easily generated and Aspergillus niger is easily generated.
  • the number of rinsing processes increases, the attachment of detergent residues and the like decreases, so it is not easy to generate biofilm and it is difficult to generate Aspergillus niger.
  • the drying process is performed, the outer barrel and the inner barrel are dry and the moisture decreases, so it is not easy to generate biofilm and it is difficult to generate Aspergillus niger.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2002-239285
  • the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a washing machine in which a user can perform a tub washing operation at an appropriate timing according to the usage conditions of the washing machine.
  • the main scheme of the present invention is a washing machine comprising: an outer tub disposed in a housing; an inner tub rotatably disposed in the outer tub and containing laundry; a notification unit; and a control unit for executing a washing operation and a tub cleaning operation for cleaning the outer tub and the inner tub with a tub cleaning liquid.
  • the control unit determines a numerical value for determining the timing for executing the tub cleaning operation based on an operating condition that affects the formation of a biofilm, and accumulates the numerical value for each washing operation to obtain a total value, and causes the notification unit to notify that the execution timing of the tub cleaning operation has arrived based on the total value exceeding a threshold value.
  • the timing of the tub cleaning operation should be determined in consideration of the biofilm generation condition that may change according to the use condition of the washing machine, and a notification of the arrival of the execution timing of the tub cleaning operation is made at the timing. Therefore, the user can perform the tub cleaning operation at an appropriate timing according to the use condition of the washing machine.
  • washing operation means a washing operation in a broad sense, including a washing operation that only washes the laundry and a washing and drying operation that not only washes the laundry but also dries the laundry.
  • the operation condition affecting the generation of the biofilm may include the number of rinsing processes.
  • the control unit may adopt the following structure: the greater the number of rinsing processes, the smaller the value.
  • biofilm is not easy to form.
  • the operating conditions affecting the generation of the biofilm may include the temperature of the detergent water stored in the outer tub during the washing process.
  • the control unit may adopt the following structure: the higher the water temperature, the larger the value.
  • the timing at which the tub washing operation should be performed can be determined in consideration of the fact that biofilm is more likely to be generated when the temperature of the detergent water becomes high.
  • the operating conditions affecting the generation of the biofilm may include whether a drying process is performed.
  • the control unit may adopt a structure that reduces the value when the drying process is performed compared to when the drying process is not performed.
  • the timing at which the tub washing operation should be performed can be determined in consideration of the fact that the biofilm is more likely to be generated when the drying process is performed than when the drying process is not performed.
  • a structure may be adopted that further includes a storage unit that stores a base value and an adjustment value for adjusting the base value.
  • the adjustment value may include: a plurality of first adjustment values corresponding to the water temperature of the detergent water stored in the outer tub during the washing process; and a plurality of second adjustment values corresponding to the number of rinsing processes.
  • the control unit may adopt the following structure: the first adjustment value and the second adjustment value are determined based on the water temperature of the detergent water in the executed washing operation and the number of rinsing processes, respectively, and the base value is adjusted and the numerical value is obtained by the determined first adjustment value and second adjustment value.
  • the base value is adjusted and the score is calculated by using the first adjustment value and the second adjustment value respectively determined according to the water temperature of the detergent water and the number of rinsing processes that affect the formation of biofilm.
  • the timing of the barrel cleaning operation that should be performed can be determined to accurately reflect the formation status of the biofilm.
  • the adjustment value may further include two third adjustment values corresponding to whether or not the drying process is executed.
  • the control unit may adopt the following structure: the third adjustment value is determined based on whether or not the drying process is executed in the washing operation that has been executed, and the base value is adjusted by the determined third adjustment value to obtain the numerical value.
  • the base value is adjusted by the third adjustment value that affects the generation of the biofilm and the numerical value is obtained.
  • the barrel washing that should be performed can be performed accurately reflecting the generation status of the biofilm. Determination of timing of net operation.
  • control unit may be configured to reduce the threshold value as the number of times the tub washing operation has been executed increases.
  • the present invention it is possible to provide a washing machine in which a user can perform a tub washing operation at an appropriate timing according to the use status of the washing machine.
  • Fig. 1 is a side sectional view schematically showing the structure of a drum-type washer-dryer according to an embodiment.
  • FIG. 2 is a block diagram showing the structure of the drum-type washer-dryer according to the embodiment.
  • FIG. 3 is a diagram showing the structure of a score table according to the embodiment.
  • FIG. 4 (a) and (b) are flowcharts showing control processing executed by the control unit for the tub wash timing notification function according to the embodiment.
  • FIG. 5 is a flowchart showing a control process executed by the control unit for the tub wash timing notification function according to the embodiment.
  • FIG. 6 is a flowchart showing a control process executed by the control unit for the tub wash timing notification function according to the first modification example.
  • drum-type washer-dryer washing machine
  • 10 housing
  • 20 outer drum
  • 23 drum (inner drum)
  • 201 control unit
  • 202 storage unit
  • 204 display unit (notification unit).
  • drum-type washer-dryer as one embodiment of the washing machine of the present invention will be described with reference to the drawings.
  • FIG. 1 is a side sectional view schematically showing the structure of a drum-type washer-dryer 1 .
  • the drum-type washer-dryer 1 includes a rectangular box-shaped housing 10.
  • a circular inlet 11 for inputting laundry is formed on the front surface of the housing 10.
  • the inlet 11 is covered by a door 12 that can be opened and closed.
  • An outer barrel 20 is arranged in the housing 10.
  • the outer barrel 20 is elastically supported by a plurality of shock absorbers 21 and springs 22.
  • a drum 23 is rotatably arranged in the outer barrel 20.
  • the drum 23 rotates around a horizontal axis.
  • the drum 23 has a circular opening 23a on its front surface. Laundry is put into the drum 23 through the inlet 11 and the opening 23a.
  • the drum 23 is equivalent to the inner barrel of the present invention.
  • the outer tub 20 has a circular opening 20 a connected to the inlet 11 via a water-sealing gasket (not shown) in front of the opening 23 a of the drum 23 .
  • drum 23 can also rotate around a rotation axis inclined relative to the horizontal direction as long as it is a horizontal axis type.
  • a drive motor 30 for generating a torque for rotating the drum 23 is arranged at the rear of the outer tub 20.
  • the drive motor 30 is, for example, an outer rotor type DC brushless motor.
  • the drive motor 30 rotates the drum 23 at a rotation speed at which the centrifugal force applied to the laundry in the drum 23 is smaller than the gravity and the laundry tumbling.
  • the drive motor 30 rotates the drum 23 at a rotation speed at which the centrifugal force applied to the laundry in the drum 23 is much greater than the gravity and the laundry adheres to the peripheral wall of the drum 23.
  • a drain port 20b is formed at the bottom of the outer tub 20.
  • a drain passage 40 formed of a drain hose or the like is connected to the drain port 20b.
  • a drain valve 41 and a drain filter 42 are provided in the drain passage 40.
  • the drain valve 41 includes, for example, a valve and a torque motor for opening and closing the valve.
  • the drain valve 41 When the drain valve 41 is opened, the water stored in the outer tub 20 is discharged to the outside of the machine through the drain passage 40. Foreign matter such as lint contained in the drain is captured by the drain filter 42.
  • a water supply unit 50 is disposed at the upper portion of the housing 10.
  • the water supply unit 50 includes a water supply valve 51 and a water supply path 52.
  • One end of the water supply path 52 is connected to the water supply valve 51, and the other end is connected to a water inlet 20c provided on the back of the outer tub 20.
  • tap water from the faucet flows through the water supply path 52 and is supplied to the outer tub 20 from the water inlet 20c.
  • the water supply unit 50 may also include an automatic injection device for automatically injecting liquid detergent and liquid softener into the outer tub 20.
  • the automatic injection device includes, for example, a liquid agent box (tank) for storing liquid detergent and liquid softener and a pump for sending the liquid detergent and liquid softener in the liquid agent box to the water supply path 52.
  • the liquid detergent and liquid softener discharged into the water supply path 52 are sent to the outer tub 20 by the water flowing through the water supply path 52.
  • a heater 60 is disposed at the bottom of the outer tub 20.
  • the heater 60 heats the water stored in the outer tub 20 to increase the water temperature.
  • a drying device 100 for drying the laundry in the drum 23 with heated air, ie, warm air, is disposed at the upper portion of the housing 10.
  • the drying device 100 includes a circulation path 110, an air blower 120, a first heat exchanger 131, and a second heat exchanger 132.
  • the circulation path 110 is a wind path for air to flow, and is connected to the outer tub 20.
  • the circulation path 110 includes an outlet duct 111, a fan casing 112, a heat exchanger housing 113, and an inlet duct 114.
  • the circulation path 110 is disposed above the outer tub 20 in the housing 10.
  • One end of the outlet duct 111 is connected to an exhaust port 20d provided on the back of the outer tub 20, and the other end is connected to a suction port of the fan housing 112.
  • the exhaust port 20d may also be provided at the rear of the circumference of the outer tub 20.
  • the heat exchanger housing 113 has a box shape that is long in the front-to-back direction and is disposed above the outer tub 20 and in front of the fan housing 112.
  • the rear end of the heat exchanger housing 113 is connected to the discharge port of the fan housing 112.
  • the introduction duct 114 extends from the front end of the heat exchanger housing 113 and is connected to the introduction port 20e formed in the front upper portion of the outer tub 20.
  • the blower 120 is, for example, a centrifugal fan, and includes a fan 121 housed in a fan housing 112 and a fan motor 122 for rotationally driving the fan 121.
  • the blower 120 circulates air between the outer tub 20 and the circulation path 110.
  • the air exhausted from the outer tub 20 through the exhaust port 20d flows through the circulation path 110 in the order of the outlet duct 111, the fan housing 112, the heat exchanger housing 113, and the inlet duct 114, and returns to the outer tub 20 through the inlet port 20e.
  • the first heat exchanger 131 and the second heat exchanger 132 are respectively disposed on the upstream side and the downstream side in the heat exchanger housing 113.
  • the first heat exchanger 131 and the second heat exchanger 132 are respectively an evaporator (cooler) and a condenser (heater), and are included in the heat pump device 130.
  • the heat pump device 130 includes a first heat exchanger 131 and a second heat exchanger 132, a compressor 133, a refrigerant circulation path 134, and a pressure reducer 135.
  • the compressor 133 compresses the refrigerant.
  • the refrigerant circulation path 134 connects the first heat exchanger 131 and the second heat exchanger 132 with the compressor 133 to circulate the refrigerant.
  • the pressure reducer 135 is, for example, an expansion valve, which is disposed between the first heat exchanger 131 and the second heat exchanger 12 of the refrigerant circulation path 134 to reduce the pressure of the refrigerant.
  • the refrigerant compressed by the compressor 133 to become a high-temperature and high-pressure refrigerant flows to the second heat exchanger 132.
  • the air flowing through the circulation path 110 is heated by heat exchange with the high-temperature refrigerant flowing through the second heat exchanger 132.
  • the refrigerant cooled by the air is decompressed by the decompressor 135, becomes a low-temperature and low-pressure refrigerant, and flows to the first heat exchanger 131.
  • the air flowing through the circulation path 110 is cooled and dehumidified by heat exchange with the low-temperature refrigerant flowing through the first heat exchanger 131.
  • the refrigerant heated by the air returns to the compressor 133.
  • FIG. 2 is a block diagram showing the structure of the drum-type washer-dryer 1 .
  • the drum-type washer-dryer 1 also has: a control unit 201, a storage unit 202, an operation unit 203, a display unit 204, a water level sensor 205, a water temperature sensor 206, a motor drive unit 207, a water supply drive unit 208, a drainage drive unit 209, a fan drive unit 210 and a compressor drive unit 211.
  • the operation unit 203 includes: a power button for turning the power on and off; a mode selection button for selecting any mode from a plurality of operation modes such as washing operation and washing and drying operation; and a start button for starting the operation.
  • the operation unit 203 outputs an input signal corresponding to the button operated by the user to the control unit 201.
  • the display unit 204 includes a light emitting element such as an LED or a display such as a liquid crystal panel, and displays the selected mode, the progress of the operation, and abnormality notifications in accordance with a control signal from the control unit 201.
  • the display unit 204 corresponds to the notification unit of the present invention.
  • operation unit 203 and the display unit 204 may also be constituted by a touch panel in the form of an operation display unit.
  • operation buttons other than the power button may be displayed on the operation display unit in the form of a software keyboard.
  • the water level detection unit 205 detects the water level in the outer tub 20 and outputs a water level signal corresponding to the water level to the control unit 201 .
  • the water temperature detection unit 206 detects the temperature of the water stored in the outer tub 20 , and outputs a temperature signal corresponding to the water temperature to the control unit 201 .
  • the motor driving unit 207 drives the driving motor 30 according to the control signal from the control unit 201.
  • the motor driving unit 207 includes a rotation sensor for detecting the rotation speed of the driving motor 30, an inverter circuit, etc., and adjusts the driving power so that the driving motor 30 rotates at the rotation speed set by the control unit 201.
  • the water supply drive unit 208 drives the water supply valve 51 according to the control signal from the control unit 201.
  • the drainage drive unit 209 drives the drainage valve 41 according to the control signal from the control unit 201.
  • the fan driving unit 210 drives the fan motor 122 of the blower 120 according to the control signal from the control unit 201.
  • the compressor driving unit 211 drives the compressor 133 according to the control signal from the control unit 201, so that the first heat exchanger 131 and the second heat exchanger 132 operate.
  • the storage unit 202 includes an EEPROM (Electrically Erasable Programmable Read Only Memory), a RAM (Random Access Memory), etc.
  • the storage unit 202 stores programs for executing various modes of operation.
  • the storage unit 202 stores various parameters and various control flags for executing these programs.
  • the control unit 201 includes a CPU (central processing unit) and the like, and controls the display unit 204, the motor drive unit 207, the water supply drive unit 208, the drainage drive unit 209, the fan drive unit 210, the compressor drive unit 211 and the like based on various signals from the operation unit 203, the water level sensor 205, the water temperature sensor 206 and the like, according to the program stored in the storage unit 202.
  • a CPU central processing unit
  • the washing and drying operation washing operation and drying operation of various operation modes are performed under the control of the control unit 201.
  • the washing process, the intermediate dehydration process, the rinsing process, the final dehydration process and the drying process are performed in sequence.
  • the washing process is performed to the final dehydration process without performing the drying process.
  • the drying operation only the drying process is performed.
  • the rinsing process and the intermediate dehydration process may be performed twice or more.
  • detergent water containing detergent is stored in the outer tub 20 until the washing water level corresponds to the load of the laundry contained in the drum 23, and the laundry immersed in the detergent water is repeatedly rotated forward and reversely by the drum 23 and tumbled in the drum 23.
  • the dirt on the laundry is removed through the power of the detergent and the mechanical force generated by tumbling.
  • the drum 23 rotates forward and reversely while the outer tub 20 is filled with water up to the rinsing water level, and the laundry tumbles in the drum 23.
  • the detergent contained in the laundry is discharged together with the water, and the laundry is rinsed.
  • the driving motor 30 rotates at a high speed in one direction, and the drum 23 rotates at a speed at which the centrifugal force acting on the laundry in the drum 23 is much greater than the gravity.
  • the laundry is pressed against the peripheral wall of the drum 23 by the centrifugal force and dehydrated.
  • the warm air introduced into the outer tub 20 and the drum 23 from the introduction port 20e hits the tumbling laundry, and the laundry is dried.
  • the warm air that has taken moisture from the laundry returns to the circulation path 110 from the exhaust port 20d.
  • the warm air passes through the first heat exchanger 131 before being heated by the second heat exchanger 132 and is dehumidified by the first heat exchanger 131.
  • the user can change the number of rinsing processes through a prescribed operation.
  • the user can set the water temperature of the detergent water in the outer tub 20 during the washing process through a prescribed operation. For example, the user can select a set water temperature from 20°C, 30°C, 40°C, and 50°C. When the water temperature during water supply is lower than the set temperature, the water is heated to the set temperature by the heater 60.
  • the drum washing machine 1 can use water containing a dedicated drum cleaning detergent as a drum cleaning liquid to perform a tub cleaning operation to clean the drum 23 and the outer tub 20.
  • the drum type washer-dryer 1 has a tub cleaning mode for performing a tub cleaning operation as one of the operation modes.
  • the tub washing operation starts. At this time, the tub washing detergent is put into the outer tub 20 .
  • Water is supplied by the water supply unit 50, and the tub cleaning liquid is stored in the outer tub 20 to the maximum water level. After that, the drum 23 rotates for the preset tub cleaning time. As a result, the outer wall surface of the drum 23 and the inner wall surface of the outer tub 20 are cleaned, and the black mold, biofilm, etc. attached to these walls are removed.
  • the tub cleaning time has passed and the rotation of the drum 23 stops, water is discharged from the outer tub 20. The removed black mold, etc., are mixed with the tub cleaning liquid.
  • the tub cleaning operation ends.
  • the drum 23 may be rotated at a high speed for a predetermined time. In this way, the water attached to the drum 23 can be shaken off.
  • warm air may be supplied to the outer tub 20 for a predetermined time by the drying device 100. In this way, the drum 23 and the outer tub 20 can be dried.
  • the drum-type washer-dryer 1 has a tub washing timing notification function for notifying the user that the execution timing of the tub washing operation has arrived.
  • the storage unit 202 stores a score table 202 a as a data table used for the tub wash timing notification function.
  • FIG. 3 is a diagram showing the structure of the score table 202 a .
  • the adjustment score includes: two first adjustment scores corresponding to the water temperature of the detergent water stored in the outer barrel 20 during the washing process, five second adjustment scores corresponding to the number of rinsing processes, i.e., the number of rinsing processes, and two third adjustment scores corresponding to whether the drying process is executed.
  • the basic score is a basic value of a score for determining the timing to execute the tub washing operation, and is set to a positive predetermined value (for example, 10).
  • the temperature range of the detergent water is divided into two ranges with the reference water temperature, i.e., 30°C, as the boundary. If the water temperature is less than 30°C, the first adjustment score is a relatively small positive prescribed value (e.g., +12), and if the water temperature is above 30°C, the first adjustment score is a relatively large positive prescribed value (e.g., +18). That is, the higher the temperature of the detergent water, the larger the first adjustment score.
  • the reference water temperature i.e. 30°C
  • the temperature range of the detergent water may be divided into three or more first adjustment points, and three or more first adjustment points may be entered in the point table 202a.
  • the number of rinses that can be performed in the drum-type washer-dryer 1 is set to 0 to 4.
  • the second adjustment point is 0 or a negative predetermined value (eg, -4, -8, -10, -12), and the greater the number of rinses, the smaller the second adjustment point (large negative value).
  • the number of rinses that can be performed may be less than 4 times or more than 5 times.
  • the number of integral points matches the number of rinses that can be performed.
  • the value of the third adjustment score is 0, and when the drying process is not executed, the third adjustment score is a negative predetermined value (e.g., -8). That is, the value of the third adjustment score when the drying process is executed is smaller than the value of the third adjustment score when the drying process is not executed.
  • the basic score corresponds to the basic value of the present invention.
  • the first adjustment score, the second adjustment score, and the third adjustment score correspond to the first adjustment value, the second adjustment value, and the third adjustment value of the present invention, respectively.
  • the detergent water used in the washing process is warm water, for example, when the water temperature is 30°C to 40°C, biofilm is easily generated and Aspergillus niger is easily generated.
  • the number of rinsing processes increases, the attachment of detergent residues and the like decreases, so it is not easy to generate biofilm and Aspergillus niger is difficult to generate.
  • the drying process is performed, the outer barrel 20 and the drum 23 are dry and the moisture decreases, so it is not easy to generate biofilm and Aspergillus niger is difficult to generate.
  • the temperature of detergent water, the number of rinses, and whether or not a drying process is performed are operating conditions that affect the formation of biofilm.
  • 4(a), (b) and 5 are flowcharts showing control processes executed by the control unit 201 for the tub wash timing notification function. These three control processes are started when the drum-type washer-dryer 1 is powered on and are executed in parallel.
  • a score for determining the execution timing of the tub washing operation is calculated at the end of the washing operation or the washing and drying operation, and the total score accumulated in each operation is updated.
  • the score is equivalent to the numerical value of the present invention, and the total score is equivalent to the total value of the present invention.
  • the control unit 201 monitors whether the washing operation or the washing and drying operation is completed ( S101 ).
  • the completion of these operations includes the case where the operation is completed by a user operation before the operation is completed, that is, the operation is stopped.
  • the control unit 201 detects the water temperature of the detergent water stored in the outer barrel 20 through the water temperature sensor 206 and stores it in the storage unit 202. At this time, when the heater 60 is operated by setting the water temperature of the detergent water, the water temperature of the detergent water heated by the heater 60 is detected. In addition, each time a rinsing process is completed, the control unit 20 counts the number of times through a counter and the like and stores the number of times. Moreover, when the drying process is executed, the control unit 201 stores the information of "execution" by setting a flag and the like.
  • the control unit 201 obtains the basic score from the score table 202a, and obtains the first adjustment score, the second adjustment score, and the third adjustment score corresponding to the water temperature of the detergent water obtained during the operation, the number of rinses, and whether the drying process is executed (S102). Then, the control unit 201 calculates the score for determining the execution timing of the tub washing operation in this operation by adding the first adjustment score, the second adjustment score, and the third adjustment score to the basic score (S103).
  • the higher the temperature of the detergent water the larger the first adjustment score.
  • the more the number of rinses the smaller the second adjustment score.
  • the third adjustment score becomes smaller than when the drying process is not performed.
  • the control unit 201 reduces the score compared with the case where the drying process is not performed. Therefore, the easier it is to generate biofilm and produce Aspergillus niger, the higher the value of the score is.
  • control unit 201 adds the current score to the total score obtained by accumulating the scores of each operation until the last operation, thereby updating the total score ( S104 ) and storing the updated total score in the storage unit 202 ( S105 ).
  • the total score is a value that takes into account the biofilm generation conditions that may change depending on the usage conditions of the drum-type washer-dryer 1. The easier it is to generate biofilm and produce Aspergillus niger, the faster the total score increases, and the total score will increase with a smaller number of operations.
  • the score is calculated based on the operation conditions before the termination. For example, if the operation is terminated before all the rinsing processes are completed, the score is calculated based on the number of rinsing processes performed before the operation is terminated. In addition, if the washing and drying operation is executed but the operation is terminated before the drying process starts, the score is calculated as "not executed" for the drying process. In this way, the operation that is terminated midway is also incorporated into the determination of the execution timing of the tub washing operation.
  • the control unit 201 reads the total score from the storage unit 202 (S202). Then, the control unit 201 determines whether the total score is greater than a prescribed score (e.g., 800 points) (S203).
  • a prescribed score e.g. 800 points
  • the prescribed score is set in advance by conducting experiments, etc. The prescribed score is equivalent to the threshold value of the present invention.
  • the control unit 201 ends the control process of FIG. 4 (b). On the other hand, if the total score is greater than the prescribed score (S203: Yes), the control unit 201 causes the display unit 204 to display a tub cleaning sign as a notification that the execution timing of the tub cleaning operation has arrived (S204).
  • the tub cleaning sign is composed of, for example, an icon including the text "tub cleaning" and is displayed on the display.
  • the barrel cleaning mark is for example continuously displayed after the operation ends until the power supply of the drum-type washing and drying machine 1 is cut off.
  • the barrel cleaning mark can also be cancelled midway in the operation. In this case, it can also be that the barrel cleaning mark is displayed again when the operation ends.
  • the notification that the execution timing of the tub washing operation has arrived may be performed by sound emitted from a speaker (not shown).
  • the user can know that the tub cleaning operation needs to be performed by finding the notification, that is, the tub cleaning mark, of the display unit 204. Then, when the current washing operation or the washing and drying operation is finished, the user can perform the tub cleaning operation.
  • the notification will be repeated every time the washing operation or the washing and drying operation is started unless the tub washing operation is performed.
  • the control unit 201 monitors whether the tub washing operation is executed (S301). Then, when the tub washing operation is executed (S301: Yes), the control unit 201 resets the total score stored in the storage unit 202 to 0 (S302). The total score is reset not only when the tub washing operation is executed after the notification of the arrival of the execution timing of the tub washing operation, but also when the tub washing operation is executed before the notification.
  • control unit 201 reduces the predetermined score to be compared with the total score in step S203 of the control process of Fig. 4(b) by a predetermined value (S303).
  • the predetermined score originally being 800 points is reduced to 780 points.
  • the user can perform the tub cleaning operation at an earlier timing in response to the situation where the tub cleaning frequency increases and the cleaning state soon becomes necessary.
  • the prescribed score is decreased each time the tub washing operation is performed once, but the prescribed score may be decreased each time the tub washing operation is performed a prescribed number of times (twice or more).
  • a score for determining the timing of executing the tub washing operation is calculated based on the operating conditions that affect the formation of the biofilm, and the score of each operation is accumulated to obtain a total score. Then, based on the total score reaching or exceeding a predetermined score, a notification is made through the display unit 204 to inform that the timing of executing the tub washing operation has arrived.
  • the timing of the drum cleaning operation is determined in consideration of the biofilm generation condition that may vary according to the use condition of the drum-type washer-dryer 1, and a notification of the arrival of the execution timing of the drum cleaning operation is made at this timing. Therefore, the user can perform the drum cleaning operation at an appropriate timing according to the use condition of the drum-type washer-dryer 1.
  • the operation condition that affects the generation of the biofilm includes the number of rinsing processes, and the greater the number of rinsing processes, the smaller the score for determining the timing for executing the tub washing operation.
  • the timing at which the tub washing operation should be performed can be determined in consideration of the fact that the biofilm is less likely to be generated as the number of rinsing processes increases.
  • the operating conditions affecting the generation of biofilm include the temperature of the detergent water stored in the outer tub 20 during the washing process. The higher the temperature of the detergent water, the greater the score for determining the timing of executing the tub washing operation.
  • the operating conditions affecting the generation of the biofilm include whether or not the drying process is executed. Furthermore, when the drying process is executed, the score for determining the timing of executing the tub washing operation becomes smaller than when the drying process is not executed.
  • the timing at which the tub washing operation should be performed can be determined in consideration of the fact that the biofilm is more likely to be generated when the drying process is performed than when the drying process is not performed.
  • the basic score and the adjustment score for adjusting the basic score are stored in the storage unit 202.
  • the adjustment score includes: a plurality of first adjustment scores corresponding to the water temperature of the detergent water stored in the outer tub 20 during the washing process, a plurality of second adjustment scores corresponding to the number of rinsing processes, and two third adjustment scores corresponding to whether or not a drying process is performed.
  • the first adjustment score, the second adjustment score, and the third adjustment score are determined based on the water temperature of the detergent water in the washing operation or the washing and drying operation that has been performed, the number of rinsing processes, and the presence or absence of the drying process, respectively, and the basic score is adjusted by the determined first adjustment score, second adjustment score, and third adjustment score to calculate the score for determining the timing of performing the tub washing operation.
  • the basic score is adjusted and the score is calculated by adjusting the first adjustment score, the second adjustment score and the third adjustment score which are respectively determined according to the water temperature of the detergent water, the number of rinsing processes and the presence or absence of the drying process which affect the formation of the biofilm.
  • the timing of the drum cleaning operation that should be performed can be accurately reflected.
  • the predetermined score decreases.
  • FIG. 6 is a flowchart showing a control process executed by the control unit 201 for the tub wash timing notification function according to the first modification example.
  • determination of whether a tub washing operation is necessary is performed not only at the start of a washing operation or a washing and drying operation but also at the end of the washing operation or the washing and drying operation, and notification of the arrival of the execution timing of the tub washing operation is performed based on the determination result.
  • control unit 201 when the control unit 201 stores the updated total score in the storage unit 202 in step S105, it is then determined whether the total score is greater than a prescribed score (S111). Then, if the total score is greater than the prescribed score (S111: Yes), the control unit 201 causes the display unit 204 to display a tub washing mark as a notification that the execution timing of the tub washing operation has arrived (S112).
  • the first adjustment score corresponding to the water temperature of the detergent water, the second adjustment score corresponding to the number of rinsing processes, and the third adjustment score corresponding to whether the drying process is performed are entered as adjustment scores (including negative values), and the score for determining the execution timing of the barrel washing operation is calculated by adding these adjustment scores to the basic score.
  • the first adjustment coefficient corresponding to the water temperature of the detergent water, the second adjustment coefficient corresponding to the number of rinsing processes, and the third adjustment coefficient corresponding to whether the drying process is performed are entered as adjustment coefficients (including values less than 1), and the above score is calculated by multiplying these adjustment coefficients by the basic score.
  • the first adjustment coefficient, the second adjustment coefficient, and the third adjustment coefficient are respectively equivalent to the first adjustment value, the second adjustment value, and the third adjustment value of the present invention.
  • the water temperature of the detergent water, the number of rinsing processes, and whether or not a drying process is executed are considered as operating conditions that affect the formation of the biofilm.
  • two or one of the above-mentioned three operating conditions are considered. In this case, the adjustment points of the operating conditions that are not considered in the first adjustment point, the second adjustment point, and the third adjustment point are deleted from the score table 202a.
  • operating conditions that affect the formation of the biofilm other than the above-mentioned three may also be taken into consideration in determining the timing of executing the tub washing operation.
  • the fourth adjustment score corresponding to the new operating condition is entered into the score table 202a.
  • the method of determining the score for determining the timing of executing the tub washing operation based on the temperature of the detergent water, the number of rinsing cycles, and whether or not the drying process is performed, which are operating conditions that affect the biofilm is not limited to the method of adjusting the basic score by adjusting the score (first adjustment score, second adjustment score, third adjustment score) as in the above-mentioned embodiment. That is, the method of determining the score may be any other method as long as the higher the temperature of the detergent water, the larger the score, the more the number of rinsing cycles, the smaller the score, and the case where the drying process is performed is smaller than the case where the drying process is not performed.
  • control unit 201 may predict the number of washing operations before the execution timing of the tub washing operation arrives based on the difference between the specified score and the total score when the total score is less than the specified score, and display the predicted number of washing operations on the display unit 204, such as a display. Furthermore, after the tub washing mark is displayed (notification of the execution timing of the tub washing operation), the washing operation may be performed several times without performing the tub washing operation, and when the total score is greater than the specified score by a specified value or more, a stronger notification such as flashing the tub washing mark may be performed.
  • the barrel cleaning operation uses a dedicated barrel cleaning detergent to clean the barrel.
  • the drum-type integrated washer-dryer 1 may also adopt a structure that uses a barrel cleaning liquid (ozone water, hypochlorous acid water, etc.) generated by the device itself to perform the barrel cleaning operation.
  • the drum-type integrated washer-dryer 1 may adopt the following structure: an ozone generator is provided, and ozone generated by the ozone generator is mixed into the water stored in the outer barrel 20 or the water flowing through the water supply path 52 to generate ozone water, and the generated ozone water is used for the barrel cleaning operation.
  • a drum-type washer-dryer 1 having a horizontal-axis drum 23 is exemplified.
  • the present invention can also be applied to a so-called vertical washer-dryer (fully automatic washer-dryer) having a vertical-axis washing-spinning drum having a pulsator as an inner drum in an outer drum.
  • the present invention can also be applied to a drum washing machine and a vertical washing machine (fully automatic washing machine) without a drying function.
  • the third adjustment score is deleted from the score table 202a.
  • the control unit 201 adjusts the basic score according to the first adjustment value and the second adjustment value and calculates the score for determining the timing of executing the tub washing operation.
  • the basic score is also adjusted and the score is calculated by using the first adjustment score and the second adjustment score respectively determined according to the water temperature of the detergent water that affects the formation of the biofilm and the number of rinsing processes. As a result, the timing of the tub washing operation that should be performed can be determined to accurately reflect the formation of the biofilm.

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Abstract

一种用户能根据洗衣机的使用状况而在适当的定时进行桶洗净运转的洗衣机。滚筒式洗干一体机（1）具备：外桶（20），配置于箱体（10）内；滚筒（23），能旋转地配置于外桶（20）内，容纳洗涤物；显示部（204）；以及控制部（201），执行洗涤运转以及利用桶洗净液来洗净外桶（20）和滚筒（23）的桶洗净运转。每当洗涤运转结束时，控制部（201）基于影响生物膜的生成的运转条件来确定用于决定执行桶洗净运转的定时的数值，并对每次洗涤运转的数值进行累计而求出总数值，基于总数值超过阈值来使显示部（204）进行告知桶洗净运转的执行定时到来的通知。

Description

洗衣机 技术领域
本发明涉及一种洗衣机。洗衣机既可以仅具备进行洗涤物的洗涤的功能，也可以除了洗涤功能以外还具备进行洗涤物的烘干的功能。具有烘干功能的洗衣机可以称为洗干一体机。
背景技术
以往，已知有一种洗衣机，其能执行使用专用的桶洗净清洁剂来洗净外桶和配置在外桶内的内桶(纵轴型的洗涤脱水桶、横轴型的滚筒)的桶洗净运转。通过执行桶洗净运转，附着在内桶的外壁面、外桶的内壁面的黑曲霉、洗涤剂残渣等被去除。
专利文献1中记载了如下洗衣机：在洗衣机的运转次数达到预先设定的次数时，通过由清扫灯进行显示，使用者能发现该显示而执行桶洗净模式的运转。
在外桶、内桶中，因洗涤剂残渣、污垢的附着而生成生物膜，黑曲霉能通过以该生物膜作为营养而繁殖。根据洗衣机的使用状况即平时在什么样的运转条件下进行洗涤运转(包括洗涤烘干)，生物膜的生成状况、黑曲霉的产生状况有所不同。
例如，在清洗过程中所使用的含洗涤剂的水(以下，称为“洗涤剂水”)温热的情况下，容易生成生物膜，容易产生黑曲霉。另一方面，当漂洗过程的次数变多时，洗涤剂残渣等的附着变少，因此不易生成生物膜，很难产生黑曲霉。此外，在进行了烘干过程的情况下，外桶、内桶干燥而湿气变少，因此不易生成生物膜，很难产生黑曲霉。
因此，在如以往那样不考虑洗衣机的使用状况而在运转次数达到规定次数时进行催促桶洗净运转的执行的通知的情况下，容易引发如下情况：无论是否产生了需要清扫的程度的黑曲霉等，用户都不进行桶洗净运转。
现有技术文献
专利文献
专利文献1：日本特开2002-239285公报
发明内容
发明所要解决的问题
本发明是鉴于上述问题而完成的，其目的在于提供一种用户能根据洗衣机的使用状况而在适当的定时进行桶洗净运转的洗衣机。
用于解决问题的方案
本发明的主要的方案的洗衣机具备：外桶，配置于箱体内；内桶，能旋转地配置于所述外桶内，容纳洗涤物；通知部；以及控制部，执行洗涤运转以及利用桶洗净液来洗净所述外桶和所述内桶的桶洗净运转。其中，每当所述洗涤运转结束时，所述控制部基于影响生物膜的生成的运转条件来确定用于决定执行所述桶洗净运转的定时的数值，并对每次所述洗涤运转的所述数值进行累计而求出总数值，基于所述总数值超过阈值来使所述通知部进行告知所述桶洗净运转的执行定时到来的通知。
根据本方案的洗衣机，考虑到可能会根据洗衣机的使用状况而变化的生物膜的生成状况来确定应该执行桶洗净运转的定时，并在该定时进行告知桶洗净运转的执行定时到来的通知。因此，用户能根据洗衣机的使用状况而在适当的定时进行桶洗净运转。
需要说明的是，在权利要求书中，“洗涤运转”一词意味着广义的洗涤运转，包括仅进行洗涤物的洗涤的洗涤运转和除了洗涤物的洗涤以外还进行烘干的洗涤烘干运转。
在方案的洗衣机中，影响所述生物膜的生成的运转条件可以包括漂洗过程的次数。在该情况下，所述控制部可以采用如下结构：所述漂洗过程的次数越多则所述数值越小。
根据上述结构，能考虑到当漂洗过程的次数变多时生物膜不易生成这一点 来决定应该执行桶洗净运转的定时。
在本方案的洗衣机中，影响所述生物膜的生成的运转条件可以包括在清洗过程中蓄于所述外桶内的洗涤剂水的水温。在该情况下，所述控制部可以采用如下结构：所述水温越高则所述数值越大。
根据上述结构，能考虑到洗涤剂水的水温变高时容易生成生物膜这一点来决定应该执行桶洗净运转的定时。
在本方案的洗衣机中，影响所述生物膜的生成的运转条件可以包括有无执行烘干过程。在该情况下，所述控制部可以采用如下结构：在执行所述烘干过程的情况下，与不执行所述烘干过程的情况相比，使所述数值减小。
根据上述结构，能考虑到执行烘干过程的情况与不执行烘干过程的情况相比容易生成生物膜这一点来决定应该执行桶洗净运转的定时。
在本方案的洗衣机中，可以采用还具备存储有基础值和用于调整该基础值的调整值的存储部的结构。在该情况下，所述调整值可以包括：多个第一调整值，与在清洗过程中蓄于所述外桶内的洗涤剂水的水温对应；以及多个第二调整值，与漂洗过程的次数对应。并且，所述控制部可以采用如下结构：基于已执行的所述洗涤运转中的所述洗涤剂水的水温和所述漂洗过程的次数来分别确定所述第一调整值和所述第二调整值，通过所确定的所述第一调整值和所述第二调整值来调整所述基础值并求出所述数值。
根据上述结构，通过根据影响生物膜的生成的洗涤剂水的水温和漂洗过程的次数而分别确定的第一调整值和第二调整值来调整基础值并求出分数，其结果为，能进行准确反映了生物膜的生成状况的应该执行桶洗净运转的定时的确定。
在采用上述结构的情况下，进而，所述调整值可以包括与有无执行烘干过程对应的两个第三调整值。在该情况下，所述控制部可以采用如下结构：基于已执行的所述洗涤运转中的所述烘干过程的有无来确定所述第三调整值，通过所确定的所述第三调整值来调整所述基础值并求出所述数值。
当采用这样的结构时，通过影响生物膜的生成的第三调整值来调整基础值并求出数值，其结果为，能进行准确反映了生物膜的生成状况的应该执行桶洗 净运转的定时的确定。
在本方案的洗衣机中，所述控制部可以采用如下结构：随着已执行的所述桶洗净运转的次数增加而使所述阈值减小。
根据上述结构，即使随着桶洗净运转的次数增加而通过桶洗净运转无法去除的黑曲霉等残留在内桶、外桶中，成为需要清扫的受污状态的周期变短，也能与此相应地加快进行告知桶洗净运转的执行定时到来的通知的定时。
发明效果
根据本发明，能提供一种用户能根据洗衣机的使用状况而在适当的定时进行桶洗净运转的洗衣机。
通过以下所示的实施方式的说明，本发明的效果乃至意义将变得更明确。但是，以下的实施方式只不过是实施本发明时的一个例示，本发明不受以下的实施方式所记载的内容的任何限制。
附图说明
图1是示意性地表示实施方式的滚筒式洗干一体机的结构的侧剖图。
图2是表示实施方式的滚筒式洗干一体机的结构的框图。
图3是表示实施方式的分数表的结构的图。
图4中，(a)和(b)是表示实施方式的为了桶洗净定时通知功能而由控制部执行的控制处理的流程图。
图5是表示实施方式的为了桶洗净定时通知功能而由控制部执行的控制处理的流程图。
图6中是表示变更例一的为了桶洗净定时通知功能而由控制部执行的控制处理的流程图。
附图标记说明
1：滚筒式洗干一体机(洗衣机)；10：箱体；20：外桶；23：滚筒(内桶)；201：控制部；202：存储部；204：显示部(通知部)。
具体实施方式
以下，参照附图对作为本发明的洗衣机的一个实施方式的滚筒式洗干一体机进行说明。
图1是示意性地表示滚筒式洗干一体机1的结构的侧剖图。
滚筒式洗干一体机1具备方形箱状的箱体10。箱体10的前表面形成有供洗涤物投入的圆形的投入口11。投入口11由自由开闭的门12覆盖。
箱体10内配置有外桶20。外桶20由多个减振器21和弹簧22弹性支承。在外桶20内旋转自如地配置有滚筒23。滚筒23绕水平轴旋转。滚筒23在其前表面具有圆形的开口部23a。通过投入口11和开口部23a向滚筒23内投入洗涤物。滚筒23相当于本发明的内桶。
外桶20在滚筒23的开口部23a的前方具有经由未图示的水封用衬垫与投入口11相连的圆形的开口部20a。
在滚筒23的周面壁形成有许多脱水孔23b。此外，在滚筒23内的周面壁设置有用于举升洗涤物的提升筋24。需要说明的是，滚筒23只要是横轴型，也可以绕相对于水平方向倾斜的旋转轴旋转。
在外桶20的后方配置有产生用于使滚筒23旋转的转矩的驱动马达30。驱动马达30例如为外转子型的DC无刷马达。在清洗过程、漂洗过程以及烘干过程时，驱动马达30以施加给滚筒23内的洗涤物的离心力比重力小而洗涤物会翻滚(tumbling)的转速使滚筒23旋转。另一方面，在脱水过程时，驱动马达30以施加给滚筒23内的洗涤物的离心力远大于重力而洗涤物会贴附于滚筒23的周面壁的转速使滚筒23旋转。
在外桶20的底部形成有排水口20b。排水口20b连接有由排水软管等构成的排水路40。在排水路40设置有排水阀41和排水过滤器42。排水阀41例如包括阀门和对阀门进行开闭的转矩马达。
当排水阀41打开时，蓄于外桶20内的水通过排水路40排出至机外。排水中所含的线屑(lint)等异物由排水过滤器42捕获。
在箱体10内的上部配置有供水部50。供水部50包括供水阀51和供水路52。供水路52的一端连接于供水阀51，另一端连接于设置在外桶20的背面的注水口20c。当供水阀51打开时，来自水龙头的自来水流过供水路52并从注水口20c供给至外桶20内。
需要说明的是，供水部50也可以包括将液体洗涤剂、液体柔顺剂自动投入至外桶20内的自动投入装置。自动投入装置例如包括储存液体洗涤剂、液体柔顺剂的液剂盒(tank)和将液剂盒内的液体洗涤剂、液体柔顺剂送出至供水路52内的泵。在该情况下，排出至供水路52内的液体洗涤剂、液体柔顺剂由流过供水路52的水送到外桶20内。
在外桶20内的底部配置有加热器60。加热器60通过加热蓄于外桶20内的水来使水温上升。
在箱体10内的上部配置有用于利用加热过的空气即暖风来烘干滚筒23内的洗涤物的烘干装置100。烘干装置100具备循环路110、送风器120、第一热交换器131以及第二热交换器132。
循环路110是供空气流动的风路，与外桶20连接。循环路110包括导出管道111、风扇壳体(casing)112、热交换器外壳(housing)113以及导入管道114。循环路110在箱体10内配置于外桶20的上方。
导出管道111的一端连接于设置在外桶20的背面的排气口20d，另一端连接于风扇壳体112的吸入口。排气口20d也可以设置在外桶20的周面后部。
热交换器外壳113具有前后方向上长的箱状，配置于外桶20的上方且风扇壳体112的前方。热交换器外壳113的后端与风扇壳体112的吐出口连接。导入管道114从热交换器外壳113的前端延伸并与形成于外桶20的前上部的导入口20e连接。
送风器120例如为离心扇，包括容纳于风扇壳体112内的风扇121和用于对风扇121进行旋转驱动的风扇马达122。送风器120使空气在外桶20与循环路110之间循环。经过排气口20d从外桶20内排出的空气按照导出管道111、风扇壳体112、热交换器外壳113、导入管道114的顺序流过循环路110内，经过导入口20e返回外桶20内。
第一热交换器131和第二热交换器132分别配置于热交换器外壳113内的上游侧和下游侧。第一热交换器131和第二热交换器132分别是蒸发器(冷却器)和冷凝器(加热器)，包括在热泵装置130中。
热泵装置130除了包括第一热交换器131和第二热交换器132，还包括压缩机133、制冷剂循环路134以及减压器135。压缩机133压缩制冷剂。制冷剂循环路134连接第一热交换器131和第二热交换器132与压缩机133之间，使制冷剂循环。减压器135例如为膨胀阀，配置于制冷剂循环路134的第一热交换器131与第二热交换器12之间，对制冷剂进行减压。
当压缩机133工作时，被压缩机133压缩而成为高温高压的制冷剂流向第二热交换器132。通过与流过第二热交换器132的高温的制冷剂进行热交换，流过循环路110的空气被加热。被空气冷却的制冷剂经过减压器135而被减压，成为低温低压并流向第一热交换器131。通过与流过第一热交换器131的低温的制冷剂进行热交换，流过循环路110的空气被冷却、除湿。被空气加热过的制冷剂返回压缩机133。
图2是表示滚筒式洗干一体机1的结构的框图。
滚筒式洗干一体机1除了上述结构以外，还具备：控制部201、存储部202、操作部203、显示部204、水位传感器205、水温传感器206、马达驱动部207、供水驱动部208、排水驱动部209、风扇驱动部210以及压缩机驱动部211。
操作部203包括：电源按钮，对设备进行电源的接通和切断；模式选择按钮，用于从洗涤运转、洗涤烘干运转等运转的多个模式中选择任意的模式；以及开始按钮，用于使运转开始。操作部203将与用户所操作的按钮对应的输入信号输出给控制部201。
显示部204包括LED等发光元件、液晶面板等显示器，根据来自控制部201的控制信号进行所选择的模式的显示、运转的进行状况的显示、异常的通知等。显示部204相当于本发明的通知部。
需要说明的是，操作部203和显示部204也可以由触摸面板以操作显示部的形式构成。在该情况下，电源按钮以外的操作按钮可以以软键盘的形式显示于操作显示部。
水位检测部205检测外桶20内的水位，并将与水位相应的水位信号输出给控制部201。
水温检测部206检测蓄于外桶20内的水的温度，并将与水温相应的温度信号输出给控制部201。
马达驱动部207根据来自控制部201的控制信号对驱动马达30进行驱动。马达驱动部207包括检测驱动马达30的转速的旋转传感器、逆变电路等，对驱动电力进行调整，使得驱动马达30以由控制部201设定的转速进行旋转。
供水驱动部208根据来自控制部201的控制信号对供水阀51进行驱动。排水驱动部209根据来自控制部201的控制信号对排水阀41进行驱动。
风扇驱动部210根据来自控制部201的控制信号对送风器120的风扇马达122进行驱动。压缩机驱动部211根据来自控制部201的控制信号对压缩机133进行驱动，使第一热交换器131和第二热交换器132工作。
存储部202包括EEPROM(电可擦可编程只读存储器)、RAM(随机存取存储器)等。存储部202中存储有用于执行各种模式的运转的程序。此外，存储部202中存储有用于执行这些程序的各种参数、各种控制标志。
控制部201包括CPU(中央处理器)等，基于来自操作部203、水位传感器205、水温传感器206等的各个信号，根据存储于存储部202的程序对显示部204、马达驱动部207、供水驱动部208、排水驱动部209、风扇驱动部210、压缩机驱动部211等进行控制。
那么，在滚筒式洗干一体机1中，基于用户对操作部203的操作，在控制部201的控制下进行各种运转模式的洗涤烘干运转、洗涤运转以及烘干运转。在洗涤烘干运转中，按顺序执行清洗过程、中间脱水过程、漂洗过程、最终脱水过程以及烘干过程。在洗涤运转中，从清洗过程进行到最终脱水过程而不进行烘干过程。在烘干运转中，仅进行烘干过程。根据运转模式，有时会进行两次以上漂洗过程和中间脱水过程。
在清洗过程中，向外桶20内蓄留含洗涤剂的水即洗涤剂水直至与容纳在滚筒23内的洗涤物的负荷量对应的清洗水位，浸在洗涤剂水中的洗涤物通过滚筒23被重复进行正旋转和逆旋转而在滚筒23内翻滚。洗涤剂水浸透至洗涤物的内 部，通过洗涤剂的力量和由翻滚产生的机械力，洗涤物的污垢被去除。
在漂洗过程中，在外桶20内蓄水至漂洗水位的状态下滚筒23进行正旋转和逆旋转，洗涤物在滚筒23内翻滚。由此，洗涤物中所含的洗涤剂与水一起被排出，洗涤物被漂洗。
在中间脱水过程和最终脱水过程中，驱动马达30向一个方向高速旋转，滚筒23以作用于滚筒23内的洗涤物的离心力远大于重力的转速向一个方向进行旋转。通过离心力的作用，洗涤物被按压在滚筒23的周面壁而被脱水。
在烘干过程中，通过送风器120的动作，空气在外桶20与循环路110之间循环，通过第二热交换器132的动作，导入外桶20的空气被加热而成为暖风。而且，滚筒23进行正旋转和逆旋转，滚筒23内的洗涤物翻滚。
从导入口20e导入至外桶20和滚筒23内的暖风触及翻滚的洗涤物，洗涤物被烘干。从洗涤物夺取了水分的暖风从排气口20d返回循环路110。在循环路110内，暖风在由第二热交换器132加热之前经过第一热交换器131而被第一热交换器131除湿。
在洗涤运转和洗涤烘干运转的许多运转过程中，用户能通过规定的操作来变更漂洗过程的次数。而且，用户能通过规定的操作来设定清洗过程中的外桶20内的洗涤剂水的水温。例如，用户能从20℃、30℃、40℃以及50℃中选择水温的设定温度。在供水时的水温低于设定温度的情况下，通过加热器60进行加热至设定温度。
滚筒洗衣机1能使用含有专用的桶洗净清洁剂的水作为桶洗净液来进行洗净滚筒23和外桶20的桶洗净运转。在滚筒式洗干一体机1中，作为运转模式之一备有执行桶洗净运转的桶洗净模式。
在操作部203中，当通过模式选择按钮选择了桶洗净模式之后按下开始按钮时，桶洗净运转开始。此时，桶洗净清洁剂被投入到外桶20内。
由供水部50进行供水，向外桶20内蓄留桶洗净液至最高水位。之后，滚筒23旋转预先设定的桶洗净时间。由此，滚筒23的外壁面、外桶20的内壁面被洗净，附着在这些壁面的黑曲霉、生物膜等被去除。当经过桶洗净时间而滚筒23的旋转停止时，从外桶20内进行排水。被去除的黑曲霉等与桶洗净液一 起被排出至机外。当排水完成时，桶洗净运转结束。
需要说明的是，也可以是，从外桶20内的排水完成后，使滚筒23高速旋转规定时间。由此，能甩掉附着在滚筒23的水。而且，也可以通过烘干装置100来向外桶20内供给暖风规定时间。由此，能烘干滚筒23和外桶20。
而且，滚筒式洗干一体机1具备向用户告知桶洗净运转的执行定时到来的桶洗净定时通知功能。
如图2所示，在存储部202中存储有用于桶洗净定时通知功能的作为数据表的分数表202a。
图3是表示分数表202a的结构的图。
在桶洗净定时通知功能中，如后文所描述的，每当洗涤运转或洗涤烘干运转结束时，计算用于决定执行桶洗净运转的定时的分数。分数表202a中录入基础分和用于调整基础分的调整分以便将其用于上述分数的计算。调整分包括：与在清洗过程中蓄于外桶20内的洗涤剂水的水温对应的两个第一调整分、与漂洗过程的次数即漂洗次数对应的五个第二调整分以及与有无执行烘干过程对应的两个第三调整分。
基础分是用于决定执行桶洗净运转的定时的分数的基础值，设为正的规定值(例如，10)。
洗涤剂水的水温范围以基准水温即30℃为界限分为两个范围。如果水温小于30℃，则第一调整分为相对小的正的规定值(例如，+12)，如果水温为30℃以上，则第一调整分为相对大的正的规定值(例如，+18)。即，洗涤剂水的水温越高，第一调整分越大。
需要说明的是，也可以通过将洗涤剂水的水温范围分为三个以上，在分数表202a中录入三个以上的第一调整分。
滚筒式洗干一体机1中能执行的漂洗次数被设为0次～4次。第二调整分为0或负的规定值(例如，-4、-8、-10、-12)，并且漂洗次数越多，第二调整分为越小的值(大的负值)。
需要说明的是，能执行的漂洗次数也可以是小于4次或5次以上。第二调 整分的个数与能执行的漂洗次数匹配。
在执行烘干过程的情况下，第三调整分的值为0值，在不执行烘干过程的情况下，第三调整分为负的规定值(例如，-8)。即，执行烘干过程的情况下的第三调整分的值比不执行烘干过程的情况下的第三调整分的值小。
需要说明的是，基础分相当于本发明的基础值。第一调整分、第二调整分以及第三调整分各自相当于本发明的第一调整值、第二调整值以及第三调整值。
清洗过程中使用的洗涤剂水为温水的情况下，例如水温为30℃～40℃的情况下，容易生成生物膜，容易产生黑曲霉。另一方面，当漂洗过程的次数变多时，洗涤剂残渣等的附着变少，因此不易生成生物膜，很难产生黑曲霉。此外，在进行了烘干过程的情况下，外桶20、滚筒23干燥而湿气变少，因此不易生成生物膜，很难产生黑曲霉。
如此，洗涤剂水的水温、漂洗次数以及有无执行烘干过程是影响生物膜的生成的运转条件。
图4的(a)、(b)和图5是表示为了桶洗净定时通知功能而由控制部201执行的控制处理的流程图。这三个控制处理在滚筒式洗干一体机1接通电源时开始，并行执行。
在图4的(a)的控制处理中，在洗涤运转或洗涤烘干运转结束时计算用于决定桶洗净运转的执行定时的分数，更新对各运转中的分数进行累计而得到的总分数。分数相当于本发明的数值，总分数相当于本发明的总数值。
参照图4的(a)，控制部201监视洗涤运转或洗涤烘干运转是否结束(S101)。这些运转的结束包括在运转完成前通过用户的操作来结束的情况，即运转被中止的情况。
在运转中的清洗过程中，控制部201通过水温传感器206来检测蓄于外桶20内的洗涤剂水的水温并存储于存储部202。此时，在通过设定洗涤剂水的水温来使加热器60工作的情况下，检测由加热器60加热后的洗涤剂水的水温。此外，每当一次漂洗过程结束时，控制部20通过计数器等对次数进行计数并保存该次数。而且，当执行了烘干过程时，控制部201通过设置标志(flag)等来存储“有执行”的信息。
当洗涤运转或洗涤烘干运转结束时(S101：是)，控制部201从分数表202a获取基础分，并且获取与运转中获取到的洗涤剂水的水温、漂洗次数以及有无执行烘干过程相应的第一调整分、第二调整分以及第三调整分(S102)。然后，控制部201通过在基础分上加上第一调整分、第二调整分以及第三调整分来计算出用于决定本次运转中的桶洗净运转的执行定时的分数(S103)。
如上所述，洗涤剂水的水温越高，第一调整分越大。此外，漂洗次数越多，第二调整分越小。而且，在执行烘干过程的情况下，与不执行烘干过程的情况相比，第三调整分变小。
因此，洗净水的水温越高则控制部201使分数越大，漂洗次数越多则控制部201使分数越小。而且，在执行烘干过程的情况下，与不执行烘干过程的情况相比，控制部201减小分数。因此，越是容易生成生物膜并容易产生黑曲霉，分数的取值越高。
接着，控制部201将本次的分数加到对每次运转的分数进行累计而得到的截止至上次运转为止的总分数上，由此更新总分数(S104)。然后，控制部201将更新的总分数(S105)存储于存储部202。
总分数是考虑了可能会根据滚筒式洗干一体机1的使用状况而变化的生物膜的生成状况的值，越是容易生成生物膜并容易产生黑曲霉的状况，总分数增加越快，总分数会在少的运转次数下变大。
如此，图4(a)的控制处理结束。
需要说明的是，在本实施方式中，即使在洗涤运转或洗涤烘干运转中途结束的情况下，也基于结束之前的运转条件来计算分数。例如，在漂洗过程全部次数结束之前结束运转的情况下，根据运转结束之前进行的漂洗过程的次数来计算分数。此外，在执行了洗涤烘干运转但烘干过程开始前结束了运转的情况下，作为烘干过程“无执行”来计算分数。如此，中途结束的运转也被结合到桶洗净运转的执行定时的确定中。
在图4的(b)的控制处理中，在洗涤运转或洗涤烘干运转开始时，基于在图4的(a)的控制处理中按每次运转结束来更新的总分数，进行告知桶洗净运转的执行定时到来的通知。
参照图4的(b)，当洗涤运转或洗涤烘干运转开始时(S201：是)，控制部201从存储部202读出总分数(S202)。然后，控制部201判定总分数是否为规定分数(例如，800分)以上(S203)。规定分数通过进行实验等来预先设定。规定分数相当于本发明的阈值。
如果总分数小于规定分数(S203：否)，则控制部201结束图4的(b)的控制处理。另一方面，如果总分数为规定分数以上(S203：是)，则控制部201使显示部204显示桶洗净标记(sign)来作为告知桶洗净运转的执行定时到来的通知(S204)。在显示部204包括显示器的情况下，桶洗净标记例如由包含“桶洗净”文字的图标构成并显示于显示器。
桶洗净标记例如在运转结束后持续显示直到滚筒式洗干一体机1的电源被切断为止。桶洗净标记也可以在运转的中途撤销。在该情况下，也可以是，当运转结束时再次显示桶洗净标记。
需要说明的是，也可以是，除了通过显示部204进行通知以外，还通过从未图示的扬声器发出声音来进行告知桶洗净运转的执行定时到来的通知。
用户能通过发现显示部204的通知即桶洗净标记来获知需要进行桶洗净运转。然后，当本次洗涤运转或洗涤烘干运转结束时，用户能进行桶洗净运转。
越是容易生成生物膜、容易产生黑曲霉，总分数增加越快，能在少的运转次数下通过显示部204进行通知。因此，即使滚筒式洗干一体机1的使用状况不同，用户也能在适当的定时进行桶洗净运转。
需要说明的是，只要能通过显示部204进行通知，之后只要不进行桶洗净运转，就会在每次开始洗涤运转或洗涤烘干运转时重复进行通知。
接着，参照图5，控制部201监视是否执行了桶洗净运转(S301)。然后，当执行了桶洗净运转时(S301：是)，控制部201将存储于存储部202的总分数重置为0(S302)。不仅在告知桶洗净运转的执行定时到来的通知之后进行了桶洗净运转的情况下，在该通知之前进行了桶洗净运转的情况下也重置总分数。
接着，控制部201使要在图4的(b)的控制处理的步骤S203中与总分数进行比较的规定分数减小规定值(S303)。例如，原本为800分的规定分数减小到780分。
通过桶洗净运转难以完全去除滚筒23、外桶20的黑曲霉等。因此，本次桶洗净运转之后与上次桶洗净运转之后相比更可能会成为黑曲霉等残留在滚筒23、外桶20的状态。因此，即使之后的黑曲霉等的产生状况相同，也可能很快成为需要清扫的状态。
如上所述，当减小规定分数时，即使总分数以与之前相同的方式增加，总分数也会很快达到规定分数以上，会以比之前更短的周期进行桶洗净运转的执行定时的通知。因此，能与随着桶洗净次数增加而很快成为需要清扫的状态的情况相应地使用户在较早的定时进行桶洗净运转。
需要说明的是，在图5的控制处理中，每进行一次桶洗净运转时，规定分数减小，但也可以是，每进行规定次数(两次以上的次数)的桶洗净运转时，规定分数减小。
<实施方式的效果>
根据本实施方式，每当洗涤运转或洗涤烘干运转结束时，基于影响生物膜的生成的运转条件来计算用于决定执行桶洗净运转的定时的分数，并对每次运转的分数进行累计而求出总分数。然后，基于总分数达到规定分数以上，通过显示部204来进行告知桶洗净运转的执行定时到来的通知。
根据该结构，考虑到可能会根据滚筒式洗干一体机1的使用状况而变化的生物膜的生成状况来确定应该执行桶洗净运转的定时，并在该定时进行告知桶洗净运转的执行定时到来的通知。因此，用户能根据滚筒式洗干一体机1的使用状况而在适当的定时进行桶洗净运转。
而且，根据本实施方式，影响生物膜的生成的运转条件包括漂洗过程的次数。并且，漂洗过程的次数越多，用于决定执行桶洗净运转的定时的分数越小。
根据该结构，能考虑到当漂洗过程的次数变多时生物膜不易生成这一点来决定应该执行桶洗净运转的定时。
而且，根据本实施方式，影响生物膜的生成的运转条件包括清洗过程中蓄于外桶20内的洗涤剂水的水温。并且，洗涤剂水的水温越高，用于决定执行桶洗净运转的定时的分数越大。
根据该结构，能考虑到洗涤剂水的水温变高时容易生成生物膜这一点来决 定应该执行桶洗净运转的定时。
而且，根据本实施方式，影响生物膜的生成的运转条件包括有无执行烘干过程。并且，在执行烘干过程的情况下，与不执行烘干过程的情况相比，用于决定执行桶洗净运转的定时的分数变小。
根据该结构，能考虑到执行烘干过程的情况与不执行烘干过程的情况相比容易生成生物膜这一点来决定应该执行桶洗净运转的定时。
而且，根据本实施方式，基础分和用于调整该基础分的调整分存储于存储部202。调整分包括：与在清洗过程中蓄于外桶20内的洗涤剂水的水温对应的多个第一调整分、与漂洗过程的次数对应的多个第二调整分以及与有无执行烘干过程对应的两个第三调整分。并且，基于已执行的洗涤运转或洗涤烘干运转中的洗涤剂水的水温、漂洗过程的次数以及烘干过程的有无来分别确定第一调整分、第二调整分以及第三调整分，通过确定的第一调整分、第二调整分以及第三调整分来调整基础分并计算用于决定执行桶洗净运转的定时的分数。
根据该结构，通过根据影响生物膜的生成的洗涤剂水的水温、漂洗过程的次数以及烘干过程的有无而分别确定的第一调整分、第二调整分以及第三调整分来调整基础分并求出分数，其结果为，能进行准确反映了生物膜的生成状况的应该执行桶洗净运转的定时。
而且，根据本实施方式，随着执行桶洗净运转的次数增加，规定分数变小。
根据该结构，即使随着桶洗净运转的次数增加而通过桶洗净运转无法去除的黑曲霉等残留在滚筒23、外桶20中，成为需要清扫的受污状态的周期变短，也能与此相应地加快进行告知桶洗净运转的执行定时到来的通知的定时。
以上，对本发明的实施方式进行了说明，但本发明不受上述实施方式等的任何限制，此外，本发明的实施方式也能进行上述以外的各种变更。
<变更例一>
图6是表示变更例一的为了桶洗净定时通知功能而由控制部201执行的控制处理的流程图。
在上述实施方式中，通过执行图4的(b)所示的控制处理，在洗涤运转或 洗涤烘干运转开始时进行是否需要桶洗净运转的判定，并基于该判定结果来进行告知桶洗净运转的执行定时到来的通知。
对此，在本变更例中，除了洗涤运转或洗涤烘干运转开始时以外，在结束时也进行是否需要桶洗净运转的判定，并基于该判定结果来进行告知桶洗净运转的执行定时到来的通知。
即，如图6所示，在本变更例中，当控制部201在步骤S105中将更新过的总分数存储于存储部202时，之后判定总分数是否为规定分数以上(S111)。然后，如果总分数为规定分数以上(S111：是)，则控制部201使显示部204显示桶洗净标记来作为告知桶洗净运转的执行定时到来的通知(S112)。
如此，能在需要桶洗净运转时，在该次洗涤运转结束时向用户告知需要桶洗净运转，用户能在下次洗涤运转之前进行桶洗净运转。
<其他变更例>
在上述实施方式中，在分数表202a中，作为调整分(包含负的值)录入与洗涤剂水的水温对应的第一调整分、与漂洗过程的次数对应的第二调整分以及与有无执行烘干过程对应的第三调整分，并通过在基础分上加上这些调整分来计算用于决定桶洗净运转的执行定时的分数。然而，也可以是，在分数表202a中，作为调整系数(包含小于1的值)录入与洗涤剂水的水温对应的第一调整系数、与漂洗过程的次数对应的第二调整系数以及与有无执行烘干过程对应的第三调整系数，并通过在基础分上乘以这些调整系数来计算上述分数。在该情况下，第一调整系数、第二调整系数以及第三调整系数分别相当于本发明的第一调整值、第二调整值以及第三调整值。
而且，在上述实施方式中，在执行桶洗净运转的定时的确定中，作为影响生物膜的生成的运转条件，考虑洗涤剂水的水温、漂洗过程的次数以及有无执行烘干过程。然而，也可以是，不需要考虑洗涤剂水的水温、漂洗过程的次数以及有无执行烘干过程的全部运转条件，考虑上述三个运转条件中的两个或一个。在该情况下，从分数表202a中删除第一调整分、第二调整分以及第三调整分中未被考虑的运转条件的调整分。而且，也可以将上述三个以外的影响生物膜的生成的运转条件考虑到执行桶洗净运转的定时的确定中。在该情况下，在 分数表202a中录入与新的运转条件对应的第四调整分。
而且，基于作为影响生物膜的运转条件的洗涤剂水的水温、漂洗次数以及有无执行烘干过程来确定用于决定执行桶洗净运转的定时的分数的方法不限于上述实施方式那样的通过调整分(第一调整分、第二调整分、第三调整分)来调整基础分并求出分数的方法。即，确定上述分数的方法只要是洗涤剂水的水温越高则上述分数越大、漂洗过程的次数越多则上述分数越小、执行烘干过程的情况与不执行烘干过程的情况相比上述分数小的方法，也可以是其他方法。
而且，在上述实施方式中，也可以是，控制部201在总分数小于规定分数的情况下基于规定分数与总分数的差分值来预测桶洗净运转的执行定时到来之前的洗涤运转的次数，并将预测的次数显示于显示部204，例如显示器。而且，也可以是，在进行桶洗净标记的显示(告知桶洗净运转的执行定时的通知)之后，不进行桶洗净运转而进行几次洗涤运转，当总分数比规定分数大了规定值以上时，进行使桶洗净标记闪烁等更强的通知。
而且，在上述实施方式中，桶洗净运转使用专用的桶洗净清洁剂来进行桶洗净。然而，滚筒式洗干一体机1也可以采用使用设备自身生成的桶洗净液(臭氧水、次氯酸水等)来进行桶洗净运转的结构。例如，滚筒式洗干一体机1可以采用如下结构：具备臭氧发生器，使臭氧发生器所产生的臭氧混入蓄于外桶20内的水或流过供水路52的水中而生成臭氧水，将生成的臭氧水用于桶洗净运转。
而且，在上述实施方式中，也可以是，在通过图4的(b)的控制处理在显示部204上进行了桶洗净标记的显示(告知桶洗净运转的执行定时的通知)时，设置表示桶洗净运转的执行定时到来的标志，之后不进行图4的(a)和(b)的控制处理，在洗涤运转等开始时，基于设置了标志来进行桶洗净标记的显示。在该情况下，当执行了桶洗净运转时，标志被重置，重新开始图4的(a)和(b)的控制处理。
而且，在上述实施方式中，例示了具备横轴型滚筒23的滚筒式洗干一体机1。然而，本发明也可以应用于在外桶内具备具有波轮的纵轴型洗涤脱水桶来作为内桶的所谓立式洗干一体机(全自动洗干一体机)。而且，本发明也可以应用于不具有烘干功能的滚筒洗衣机和立式洗衣机(全自动洗衣机)。
当本发明应用于滚筒洗衣机或立式洗衣机时，由于这些洗衣机不具有烘干功能，因此在执行桶洗净运转的定时的确定中不考虑有无执行烘干过程。因此，从分数表202a中删除第三调整分。并且，控制部201根据第一调整值和第二调整值来调整基础分并求出用于决定执行桶洗净运转的定时的分数。在该情况下也通过根据影响生物膜的生成的洗涤剂水的水温和漂洗过程的次数而分别确定的第一调整分和第二调整分来调整基础分并求出分数，其结果为，能进行准确反映了生物膜的生成状况的应该执行桶洗净运转的定时的确定。
此外，本发明的实施方式能在权利要求书所示的技术构思的范围内适当地进行各种变更。

Claims (7)

  1. 一种洗衣机，其特征在于，具备：
    外桶，配置于箱体内；
    内桶，能旋转地配置于所述外桶内，容纳洗涤物；
    通知部；以及
    控制部，执行洗涤运转以及利用桶洗净液来洗净所述外桶和所述内桶的桶洗净运转，
    每当所述洗涤运转结束时，所述控制部基于影响生物膜的生成的运转条件来确定用于决定执行所述桶洗净运转的定时的数值，
    所述控制部对每次所述洗涤运转的所述数值进行累计而求出总数值，
    所述控制部基于所述总数值超过阈值来使所述通知部进行告知所述桶洗净运转的执行定时到来的通知。
  2. 根据权利要求1所述的洗衣机，其特征在于，
    影响所述生物膜的生成的运转条件包括漂洗过程的次数，
    所述控制部设为：所述漂洗过程的次数越多则使所述数值越小。
  3. 根据权利要求1所述的洗衣机，其特征在于，
    影响所述生物膜的生成的运转条件包括在清洗过程中蓄于所述外桶内的洗涤剂水的水温，
    所述控制部设为：所述水温越高则使所述数值越大。
  4. 根据权利要求1所述的洗衣机，其特征在于，
    影响所述生物膜的生成的运转条件包括有无执行烘干过程，
    所述控制部设为：执行所述烘干过程的情况与不执行所述烘干过程的情况相比，使所述数值减小。
  5. 根据权利要求1所述的洗衣机，其特征在于，
    还具备：存储部，存储有基础值和用于调整该基础值的调整值，
    所述调整值包括：多个第一调整值，与在清洗过程中蓄于所述外桶内的洗涤剂水的水温对应；以及多个第二调整值，与漂洗过程的次数对应，
    所述控制部基于已执行的所述洗涤运转中的所述洗涤剂水的水温和所述漂洗过程的次数来分别确定所述第一调整值和所述第二调整值，
    所述控制部通过所确定的所述第一调整值和所述第二调整值来调整所述基础值并求出所述数值。
  6. 根据权利要求5所述的洗衣机，其特征在于，
    所述调整值包括与有无执行烘干过程对应的两个第三调整值，
    所述控制部基于已执行的所述洗涤运转中的所述烘干过程的有无来确定所述第三调整值，
    所述控制部通过所确定的所述第三调整值来调整所述基础值并求出所述数值。
  7. 根据权利要求1～6中任一项所述的洗衣机，其特征在于，
    所述控制部随着已执行的所述桶洗净运转的次数增加而使所述阈值减小。
PCT/CN2023/127529 2022-11-07 2023-10-30 洗衣机 WO2024099130A1 (zh)

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