CN110616554B - Clothes dryer and washing dryer - Google Patents
Clothes dryer and washing dryer Download PDFInfo
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- CN110616554B CN110616554B CN201910401741.3A CN201910401741A CN110616554B CN 110616554 B CN110616554 B CN 110616554B CN 201910401741 A CN201910401741 A CN 201910401741A CN 110616554 B CN110616554 B CN 110616554B
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- drying
- control unit
- heating device
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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
- D06F58/00—Domestic laundry dryers
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
Provided is a technology capable of ending a drying operation at the latest scheduled drying end time and improving the energy efficiency of a clothes dryer in the drying operation. The clothes dryer is provided with a rotary barrel, a motor, a heating device, a fan and a control part. The control unit starts the drying operation based on the first scheduled drying end time when the scheduled drying end time of the drying operation is obtained, determines the standby time based on the second scheduled drying end time when a request signal including a second scheduled drying end time later than the first scheduled drying end time is received from an external device during the execution of the drying operation, stops the driving of the heating device during the execution of the drying operation, and drives the heating device to restart the drying operation after the standby time elapses after the driving of the heating device is stopped.
Description
Technical Field
The technology disclosed in this specification relates to a laundry dryer and a washer-dryer.
Background
Patent document 1 discloses a bathroom dryer including: a heating device for heating air; a fan for supplying air heated by the heating device to the bathroom; and a control unit for controlling the operation of the heating device and the fan. The control unit of the bathroom dryer is configured to be capable of executing a drying operation including a first drying operation in which the heating device and the fan are driven, a standby operation in which only the fan is driven in a state in which the driving of the heating device is stopped, and a second drying operation in which the heating device and the fan are driven. The first drying operation is an operation performed when the drying rate of the laundry is less than a first drying index value, and the second drying operation is an operation performed when the drying rate of the laundry is equal to or more than the first drying index value. When the scheduled end time of the drying operation is acquired, the control unit stores the acquired scheduled end time as a first scheduled end time. The control unit executes the first drying operation, the standby operation, and the second drying operation based on the first predetermined end timing. In addition, when the second scheduled termination time is acquired during the execution of the first drying operation, the control unit adjusts the time of the standby operation so that the drying operation is terminated at the acquired second scheduled termination time.
Prior art documents:
patent documents:
patent document 1: japanese patent laid-open publication No. 2016-129596
Disclosure of Invention
In the bathroom dryer of patent document 1, the control unit inevitably executes a standby operation for stopping the driving of the heating device after executing the first drying operation. That is, the control unit stops the driving of the heating device even if the second scheduled end time, which is a time later than the first scheduled end time, is not obtained during the execution of the first drying operation. Even if the driving of the heating device is not required to be stopped, the driving of the heating device is stopped, and the energy efficiency of the bathroom dryer is reduced.
In the present specification, a technology is provided that can end the drying operation at the latest scheduled drying end time and can improve the energy efficiency of the laundry dryer in the drying operation.
The laundry dryer disclosed in the present specification may further include: a rotary tub for accommodating the laundry; a motor for rotating the rotary tub; a heating device for heating air; a fan for supplying air heated by the heating device to the rotary tub; and a control unit configured to control operations of the motor, the heating device, and the fan, wherein the control unit is configured to be capable of performing a drying operation for drying laundry in the rotary tub, the drying operation includes a constant-speed drying step for driving the motor, the heating device, and the fan, and a deceleration drying step for driving the motor, the heating device, and the fan, the control unit stores the acquired scheduled drying end time as a first scheduled drying end time when the scheduled drying end time of the drying operation is acquired, starts the drying operation based on the first scheduled drying end time, and receives a request signal including a second scheduled drying end time later than the first scheduled drying end time from an external device during execution of the drying operation In this case, the drying operation is resumed by determining a standby time as a time for stopping the driving of the heating device based on the second scheduled drying end time, stopping the driving of the heating device during the drying operation, and driving the heating device after the standby time has elapsed after the stopping of the driving of the heating device.
Further, the cleaning dryer disclosed in the present specification may further include: a rotary tub for accommodating the laundry; a motor for rotating the rotary tub; a heating device for heating air; a fan for supplying the hot air heated by the heating device to the rotary tub; a control unit configured to control operations of the motor, the heating device, and the fan, wherein the control unit is configured to be capable of executing a washing and drying operation including a washing operation and a drying operation including a constant-speed drying step of driving the heating device and the fan and a deceleration drying step of driving the motor, the heating device, and the fan, wherein the control unit stores the acquired washing and drying completion scheduled time as a first washing and drying completion scheduled time when the washing and drying completion scheduled time of the washing and drying operation is acquired, starts the washing and drying operation based on the first washing and drying completion scheduled time, and receives a command including a command of being later than the first washing and drying completion scheduled time from an external device during execution of the drying operation included in the washing and drying operation In the case of a request signal including the second predetermined cleaning/drying end time, the standby time is determined as the time for stopping the driving of the heating device based on the second predetermined cleaning/drying end time, the driving of the heating device is stopped, and the heating device is driven after the standby time has elapsed after the driving of the heating device is stopped, and the drying operation is restarted.
Drawings
Fig. 1 is a block diagram showing a drying system 2 of a first embodiment.
Fig. 2 is a perspective view showing the laundry dryer 10 of the first embodiment.
Fig. 3 is a flowchart showing the scheduled drying process of the first embodiment.
Fig. 4 is a graph showing transitions of the outlet air temperature and the like in the case where the laundry dryer 10 does not receive the request signal from the portable terminal 100 while the constant-speed drying process is being performed in the first embodiment.
Fig. 5 is a graph showing transitions of the blowing temperature and the like in the case where the laundry dryer 10 receives the request signal from the portable terminal 100 while the constant-speed drying process is being executed in the first embodiment.
Fig. 6 is a block diagram showing a cleaning and drying system 202 of the second embodiment.
Fig. 7 is a flowchart showing the scheduled cleaning process of the second embodiment.
Fig. 8 is a flowchart showing the drying process of the second embodiment.
Description of the reference numerals
2: drying system
4: internet network
10: clothes dryer
12: shell body
14: display unit
16: operation part
18: communication I/F
20: control unit
22: memory device
24: procedure for measuring the movement of a moving object
30: rotary barrel unit
32: rotary barrel
34: electric motor
36 a: temperature sensor
36 b: temperature sensor
40: drying unit
42: fan with cooling device
44: electric heater
46: heat exchanger
48: temperature sensor
70: control unit
100: mobile terminal
102: display unit
104: communication I/F
110: control unit
112: memory device
114: dry run application
202: cleaning and drying system
210: cleaning and drying machine
314: cleaning and drying operation application
Detailed Description
(first embodiment)
(constitution of drying System 2)
Referring to fig. 1, a drying system 2 will be explained. The drying system 2 includes a laundry dryer 10 and a portable terminal 100. The laundry dryer 10 and the mobile terminal 100 can be connected to the internet 4 by performing Wi-Fi communication conforming to a Wi-Fi (registered trademark) system, respectively. Thus, the laundry dryer 10 and the mobile terminal 100 can communicate with each other via the internet 4.
(constitution of clothes dryer 10)
With reference to fig. 1 and 2, a laundry dryer 10 will be described. As shown in fig. 1 and 2, the laundry dryer 10 includes a casing 12, a display unit 14, an operation unit 16, a communication I/F18, a control unit 20, a rotary tub unit 30, and a drying unit 40.
A display unit 14 and an operation unit 16 are provided on the upper surface of the housing 12. The housing 12 accommodates a communication I/F18, a control section 20, a rotary tub unit 30, and a drying unit 40. The display unit 14, the operation unit 16, the communication I/F18, the rotary tub unit 30, and the drying unit 40 are communicably connected to the control unit 20. The display unit 14 includes a liquid crystal panel. The display unit 14 is controlled by the control unit 20 to display information related to the process executed by the laundry dryer 10 (for example, a remaining time of the drying operation and a scheduled drying end time TD of the drying operation, which will be described later).
The user can perform a plurality of operations such as a start operation of the drying operation and a reservation operation of the drying operation by using the operation unit 16. The operation unit 16 includes a plurality of buttons such as a power switch, a start button, and a stop button. When the user operates the button, the operation unit 16 transmits a signal corresponding to the operated button to the control unit 20. In the modification, the display unit 14 and the operation unit 16 may be provided with touch panels.
The communication I/F18 is a wireless I/F for performing Wi-Fi communication with an external device. The laundry dryer 10 is capable of accessing the internet 4 via a communication I/F18.
The rotary tub unit 30 includes a rotary tub 32, a motor 34, and temperature sensors 36a and 36 b. The rotary tub 32 is connected to the drying unit 40 through an air inlet (not shown) and an air outlet (not shown).
The rotary tub 32 has a bottomed cylindrical shape with an opening. The rotary tub 32 is inclined with respect to the vertical direction. In the modification, the rotary tub 32 may be disposed in the vertical direction. The rotary tub 32 is supported to be rotatable with respect to the housing 12. The rotary tub 32 is rotated with respect to the housing 12 by a motor 34. The motor 34 is driven in accordance with a signal received from the control unit 20 to rotate the rotary tub 32. The temperature sensor 36a detects the temperature of the air near the air inlet, that is, the temperature of the air blown out from the drying unit 40 (hereinafter, sometimes referred to as "blowing temperature"). The temperature sensor 36b detects the temperature of the air in the vicinity of the exhaust port (hereinafter, sometimes referred to as "tub outlet temperature").
The drying unit 40 includes a fan 42, an electric heater 44, a heat exchanger 46, and a temperature sensor 48.
The fan 42 is disposed between the intake port and the exhaust port. The electric heater 44 is provided between the exhaust port and the fan 42. Further, a heat exchanger 46 is provided between the exhaust port and the electric heater 44. The heat exchanger 46 is a water-cooling dehumidification type heat exchanger. The heat exchanger 46 is connected to a water supply pipe (not shown) for supplying water into the heat exchanger 46 and a water discharge pipe (not shown) for discharging water from the heat exchanger 46. The air passing through the heat exchanger 46 is cooled and dehumidified by the water injected into the heat exchanger 46. The temperature sensor 48 detects the temperature of the water discharged from the heat exchanger 46 (hereinafter, sometimes referred to as "outlet water temperature").
The control unit 20 includes a CPU and a memory 22 such as a RAM and a ROM. The control unit 20 is controllably connected to the respective units 14, 16, 18, 30, and 40 by a wiring not shown. The control unit 20 controls the operations of the various units 14, 16, 18, 30, 40 of the laundry dryer 10 in accordance with a program 24 stored in a memory 22. The control unit 20 executes the drying operation using the CPU and the memory 22. The drying operation includes a preheating step, a constant-speed drying step, a deceleration drying step, an air blowing step, and a soft hold (soft keep) step (see fig. 4).
(constitution of Mobile terminal 100)
Next, the mobile terminal 100 will be described with reference to fig. 1. The mobile terminal 100 is a portable terminal device such as a mobile phone, a smart phone, or a tablet PC. The mobile terminal 100 includes a display unit 102, a communication I/F104, and a control unit 110. The display unit 102 is a display for displaying various information, and also functions as a so-called touch panel (i.e., an operation unit). The communication I/F104 is a wireless I/F for performing Wi-Fi communication with an external device. The mobile terminal 100 is capable of accessing the internet 4 via the communication I/F104. The control unit 110 controls the operation of the mobile terminal 100. The control unit 110 further includes a memory 112. A dry-run application 114 is stored in the memory 112. The dry-run application 114 is installed in the mobile terminal 100 from a server (not shown) on the internet 4, for example. The dry running application 114 is an application for setting a drying end predetermined time TD of the drying running performed by the laundry dryer 10.
(drying operation)
Next, a drying operation performed by the control unit 20 of the laundry dryer 10 will be described with reference to fig. 4. As shown in fig. 4, during the drying operation, a preheating step, a constant-speed drying step, a deceleration drying step, an air blowing step, and a soft holding step are sequentially performed. The control unit 20 drives the motor 34, the fan 42, the electric heater 44, and the heat exchanger 46 in the preheating step, the constant-speed drying step, and the deceleration drying step. The preheating process is a process of drying the laundry until the drum outlet temperature detected by the temperature sensor 36b reaches a first predetermined temperature. The constant-speed drying process is a process for drying the clothes until the drying rate of the clothes in the rotary tub 32 is about 85 to 90 [% ]. The deceleration drying process is a process of drying the laundry until the drying rate of the laundry in the rotary tub 32 becomes about 100 [% ]. The drying rate of the laundry is an index indicating a value obtained by dividing the weight of the laundry containing no moisture by the current weight of the laundry by a percentage ([% ]).
The control unit 20 drives the motor 34 and the fan 42 in the air blowing step. The air blowing step is a step of circulating air between the rotary tub 32 and the drying unit 40 for a predetermined time. Further, the control unit 20 intermittently drives the motor 34 every predetermined time in the soft holding step. The soft holding step is a step for making wrinkles of the laundry less likely to occur by intermittent driving of the motor 34.
(reservation drying treatment; FIG. 3)
Next, the drying reservation process executed by the control unit 20 of the laundry dryer 10 will be described with reference to fig. 3 to 5. The reserved drying process is a process executed when the user operates a start button in a state where the scheduled drying end time TD of the drying operation is stored in the memory 22. The control unit 20 performs the drying operation in the scheduled drying process. In the following description, a case where the user operates the operation unit 16 of the laundry dryer 10 and sets the first scheduled drying end time TD1 as the scheduled drying end time TD, that is, a case where the first scheduled drying end time TD1 is stored in the memory 22 will be described as an example. Fig. 4 is a graph showing an example of the case where no is determined in S34, and fig. 5 is a graph showing an example of the case where yes is determined in S34. In fig. 5, a situation is assumed in which the control unit 20 receives the request signal from the mobile terminal 100 during a period from time T11 to time T12. The case where the control unit 20 receives the request signal from the portable terminal 100 is, for example, the case where the time of the user's return home is later than the first scheduled drying end time TD 1.
At S10, control unit 20 detects the weight of the laundry put into rotary tub 32. Specifically, the control unit 20 drives the motor 34 to rotate the rotary tub 32. Then, the control unit 20 determines the weight of the laundry put into the rotary tub 32 based on the load applied to the motor 34, and stores the determined weight in the memory 22.
In S12, control unit 20 determines drying start scheduled time TS 1. Predetermined drying start time TS1 is a time for starting the preheating process of S20, and control unit 20 determines the drying operation time required for the drying operation based on the weight of the laundry detected in S10. Then, the control unit 20 determines a time earlier than the first scheduled drying end time TD1 by the drying operation time as the scheduled drying start time TS 1. Then, the control unit 20 stores the scheduled drying start time TS1 in the memory 22.
At S14, control unit 20 monitors the arrival of predetermined drying start time TS 1. If the current time is scheduled drying start time TS1, control unit 20 determines yes in S14 and proceeds to S20.
In S20, the control unit 20 executes the warm-up process (time T0 to time T1 in fig. 4, and time T10 to time T11 in fig. 5). In the preheating step, the control unit 20 drives the motor 34, the fan 42, the electric heater 44, and the heat exchanger 46. With the driving of the fan 42, the air inside the rotary tub 32 is taken into the drying unit 40 via the air outlet. The air taken into the drying unit 40 is cooled and dehumidified by the heat exchanger 46. The air passing through the heat exchanger 46 is heated by the electric heater 44. The air heated by the electric heater 44 is supplied to the rotary tub 32 through the air inlet. As shown in fig. 4 and 5, in the warm-up process, the outlet air temperature detected by the temperature sensor 36a, the outlet temperature of the rotary tub detected by the temperature sensor 36b, and the outlet water temperature detected by the temperature sensor 48 increase. As described above, the control unit 20 distinguishes between the preheating step and the constant-speed drying step based on the drum outlet temperature detected by the temperature sensor 36 b. The preheating step is performed when the drum outlet temperature is lower than a first predetermined temperature (for example, 50 ℃), and the constant-speed drying step is performed when the drum outlet temperature is equal to or higher than the first predetermined temperature (for example, 50 ℃). Therefore, when the drum outlet temperature becomes equal to or higher than the first predetermined temperature (time T1 in fig. 4 and time T11 in fig. 5), the controller 20 ends the warm-up process and proceeds to S30.
In S30, control unit 20 executes a constant-speed drying process (time T1 to time T2 in fig. 4, and time T11 to time T12 in fig. 5). In the constant-speed drying process, the control unit 20 drives the motor 34, the fan 42, the electric heater 44, and the heat exchanger 46.
In S32, the control unit 20 determines whether the constant-speed drying process is finished. In the present embodiment, when the first predetermined time has elapsed after the constant-speed drying process is started, the controller 20 determines yes in S32 and proceeds to S34. The first predetermined time is a time required for the drying rate of the laundry in the rotary tub 32 to reach about 85 to 90 [% ].
In the modification, the control unit 20 may determine whether the constant-speed drying process is finished based on a temperature difference (see fig. 4 and 5) calculated by subtracting the outlet water temperature from the outlet temperature of the rotary tub. In the present modification, the control unit 20 determines the temperature difference at the time when the second predetermined time (for example, 7 minutes) has elapsed after the start of the constant-speed drying process as the reference temperature difference. When the temperature difference after the second predetermined time is higher than the reference temperature difference by a second predetermined temperature (for example, 3 ℃), the control unit 20 determines yes at S32. In the present modification, the second predetermined temperature is set so that the drying rate of the laundry in the rotary tub 32 is about 85 to 90 [% ].
In another modification, laundry dryer 10 may include a humidity sensor, and determine whether or not the drying rate of the laundry in rotary tub 32 has reached about 85 to 90 [% ] based on the humidity detected by the humidity sensor. That is, in S32, control unit 20 may determine that the drying rate of the laundry has reached about 85 to 90 [% ].
In S34, the control unit 20 determines whether or not a request signal is received from the portable terminal 100 while the warm-up process or the constant speed drying process is being performed. The request signal is a signal transmitted from the portable terminal 100 when an operation for setting the second scheduled drying end time TD2 as the scheduled drying end time TD is performed by the user on the display unit 102 of the portable terminal 100. That is, the request signal is a signal for requesting a change of the scheduled drying end time TD of the drying operation, and is a signal including the second scheduled drying end time TD 2. When the request signal is received from the mobile terminal 100 (yes in S34), the control unit 20 proceeds to S36, and when the request signal is not received from the mobile terminal 100 (no in S34), the control unit proceeds to S50.
In S36, control unit 20 determines the drying standby time. The drying standby time is a time for maintaining a state in which the driving of the electric heater 44 is stopped after the constant-speed drying process is finished. When second scheduled drying end time TD2 in the request signal is later than first scheduled drying end time TD1 in memory 22, controller 20 determines the drying standby time by subtracting first scheduled drying end time TD1 from second scheduled drying end time TD 2. The control unit 20 stores the drying standby time and the second scheduled drying end time TD2 in the request signal in the memory 22. In the case where the second drying end scheduled time TD2 is a later time than the first drying end scheduled time TD1, the drying operation can be ended at the second drying end scheduled time TD2 changed by the user. In order to terminate the drying operation at the second predetermined drying termination time TD2, the drying operation (in detail, the driving of the electric heater 44) needs to be temporarily interrupted. Therefore, the control unit 20 determines the drying standby time, which is a time for stopping the driving of the electric heater 44, in order to end the drying operation at the second predetermined drying end time TD 2. For example, the following case is explained: user settings 17: 00 is set as the first scheduled drying end time TD1, and thereafter, since it is late to come home, 17: 30 as the second drying end scheduled time TD 2. In this case, the control unit 20 controls the operation from 17: 30 minus 17: 00, thereby determining the drying standby time to be 30 minutes. When the second scheduled drying end time TD2 is earlier than the first scheduled drying end time TD1, the control unit 20 does not determine the drying standby time. This is because it is difficult to advance the timing at which the drying operation ends after the drying operation is started. In this case, the control unit 20 does not execute S36 to S40.
In S38, controller 20 stops driving of electric heater 44 and heat exchanger 46 while maintaining driving of motor 34 and fan 42 (T12 in fig. 5). This reduces the temperature of the air supplied from the drying unit 40 into the rotary tub 32.
In S40, the control unit 20 monitors that the drying standby time has elapsed after the driving of the electric heater 44 is stopped. If the drying standby time has elapsed after the stop of the driving of the electric heater 44 (T13 in fig. 5), the controller 20 determines yes in S40 and proceeds to S50.
In S50, the control unit 20 executes the deceleration drying process (time T2 to time T3 in fig. 4, and T13 to time T14 in fig. 5). In the deceleration drying process, the control unit 20 drives the motor 34, the fan 42, the electric heater 44, and the heat exchanger 46. When no has passed in S34, the motor 34, the fan 42, the electric heater 44, and the heat exchanger 46 are driven. On the other hand, when the answer of S34 is yes, the driving of the electric heater 44 and the heat exchanger 46 is stopped (see S38). Accordingly, in S50 after yes in S34, the controller 20 drives the electric heater 44 and the heat exchanger 46 (time T13 in fig. 4). When the third predetermined time has elapsed after the start of the deceleration drying process, the control unit 20 ends the deceleration drying process and proceeds to S52.
In S52, the control unit 20 executes the blowing step (time T3 to time T4 in fig. 4, and time T14 to time T15 in fig. 5). Specifically, the control unit 20 stops the driving of the electric heater 44 and the heat exchanger 46 while maintaining the driving of the motor 34 and the fan 42. When a fourth predetermined time (for example, 10 minutes) has elapsed after the start of the air blowing step, the control unit 20 ends the air blowing step and proceeds to S54.
In S54, the control unit 20 executes a soft hold process (time T4 to time T5 in fig. 4, and time T15 to time T16 in fig. 5). In the soft holding step, the control unit 20 intermittently drives the motor 34 every fifth predetermined time. By driving motor 34 every fifth predetermined time, controller 20 periodically agitates the laundry in tub 32, thereby agitating the laundry in tub 32 and preventing wrinkles from being formed in the laundry. When the current time reaches scheduled drying end time TD (i.e., first scheduled drying end time TD1 or second scheduled drying end time TD2) in memory 22, control unit 20 ends the soft hold process and ends the processing shown in fig. 3. In addition, in fig. 4, the time T5 corresponds to the first scheduled drying end time TD1, and in fig. 5, the time T16 corresponds to the second scheduled drying end time TD 2.
According to the above-described configuration, when the control unit 20 of the laundry dryer 10 receives the request signal including the second scheduled drying end time TD2 from the mobile terminal 100 while the drying operation is being performed (yes in S34 of fig. 3), the drying standby time is determined based on the second scheduled drying end time TD2 (S36). Then, the control unit 20 stops the driving of the electric heater 44 (S38), and drives the electric heater 44 when the drying standby time elapses after the driving of the electric heater 44 is stopped (yes in S40) (S50). In this case, the drying operation is ended at the second drying end scheduled time TD 2. On the other hand, when the control unit 20 does not receive the request signal from the portable terminal 100 while the drying operation is being executed (no in S34), the drying standby time is not determined. Therefore, the control unit 20 does not stop the driving of the electric heater 44 during the drying operation (specifically, during the period from the constant-speed drying step to the deceleration drying step). In this case, the drying operation is ended at the first drying end scheduled time TD 1. Therefore, the control unit 20 can end the drying operation at the latest scheduled drying end time TD (the first scheduled drying end time TD1 or the second scheduled drying end time TD 2).
As described above, when the control unit 20 does not receive the request signal from the portable terminal 100 while the drying operation is being executed (no in S34), the drive of the electric heater 44 is not stopped. Accordingly, the energy efficiency of the laundry dryer 10 can be improved as compared to the case where the driving of the electric heater 44 must be stopped even if a request signal is not received from the mobile terminal 100 in the course of performing the drying operation.
After the constant-speed drying process is completed, the control unit 20 stops the electric heater 44 (S38). That is, the control unit 20 stops the electric heater 44 before the deceleration drying process is performed. The drying rate of the laundry after the constant-speed drying process is completed is relatively high. That is, the amount of moisture contained in the laundry is relatively small. In this case, when the driving of the electric heater 44 is restarted, the temperature of the laundry rises faster than when the moisture content of the laundry is relatively large. Therefore, even if the driving of the electric heater 44 is stopped, the laundry can be dried relatively quickly. As described above, the drying rate of the laundry in the rotary tub 32 at the time when the constant-speed drying process is completed reaches about 85 to 90 [% ]. In a state where the laundry contains moisture, wrinkles are less likely to be generated on the laundry even if the laundry is placed, as compared to a state where the laundry does not contain moisture (i.e., the drying rate of the laundry is 100 [% ]) after the completion of the drying operation. Therefore, by stopping the electric heater 44 after the constant-speed drying process is completed (S38), wrinkles of the laundry can be suppressed even if the laundry is placed.
(corresponding relationship)
The electric heater 44 is an example of a "heating device". The dry standby time is an example of the "standby time". The control section 20 of the laundry dryer 10 is an example of a "control section".
(second embodiment)
In the first embodiment described above, the drying system 2 including the laundry dryer 10 has been described, but the present invention is not limited to this configuration. The technique disclosed in the present specification can also be applied to the washing and drying system 202 of the second embodiment. The washing and drying system 202 of the second embodiment includes a washing and drying machine 210 instead of the laundry dryer 10 of the first embodiment. The washing and drying machine 210 includes a tub (not shown) accommodated in the housing 12 and accommodating the rotary tub 32. In the washing and drying system 202 of the second embodiment, a washing and drying operation including a washing operation and a drying operation is performed.
Referring to fig. 6, a cleaning and drying system 202 according to a second embodiment will be described. Note that the same reference numerals are given to the components shared between the embodiments, and the description thereof is omitted.
(constitution of cleaning and drying System 202)
As shown in fig. 6, the washing and drying system 202 includes a washing and drying machine 210 and the mobile terminal 100. The washing and drying machine 210 and the mobile terminal 100 can perform Wi-Fi communication in compliance with the Wi-Fi method to connect to the internet 4, respectively. Thus, the washing and drying machine 210 and the mobile terminal 100 can communicate with each other via the internet 4.
(constitution of washing and drying machine 210)
The control unit 220 includes a CPU and a memory 222 such as a RAM and a ROM. The control unit 220 is controllably connected to the respective units 14, 16, 18, 30, and 40 by a wiring not shown. The control unit 220 controls the operations of the respective units 14, 16, 18, 30, and 40 of the washing and drying machine 210 in accordance with a program 224 stored in a memory 222. The control unit 220 executes various operations including a washing and drying operation by using the CPU and the memory 222. The washing and drying operation is composed of a washing operation and a drying operation. The cleaning operation includes a washing process, a rinsing process, and a dehydrating process. The drying operation includes a preheating step, a constant-speed drying step, a deceleration drying step, an air blowing step, and a soft holding step.
(constitution of Mobile terminal 100)
The memory 112 of the mobile terminal 100 stores the wash dry run application 314 instead of the dry run application 114 of the first embodiment. The wash dry run application 314 is installed in the mobile terminal 100 from, for example, a server (not shown) on the internet 4. The wash-dry run application 314 is an application for setting the wash-dry end scheduled time TW of the wash-dry run performed by the wash dryer 210.
(reservation cleaning treatment; FIG. 7)
The scheduled cleaning process executed by the control unit 220 of the cleaning and drying machine 210 will be described with reference to fig. 7. The scheduled cleaning process is a process executed when the user operates a start button in a state where cleaning/drying completion scheduled time TW of the cleaning/drying operation is stored in the memory 222. The control unit 220 executes the cleaning and drying operation in the scheduled cleaning process. The washing step (S220), the rinsing step (S230), and the dewatering step (S240) to be executed in the scheduled cleaning process are known steps. Therefore, the details of S220, S230, and S240 are omitted below. In the following description, a case where the user operates the operation unit 16 of the washing and drying machine 210 and sets the first scheduled washing and drying end time TW1 as the scheduled washing and drying end time TW, that is, a case where the first scheduled washing and drying end time TW1 is stored in the memory 222 will be described as an example.
In S210, control unit 220 detects the weight of laundry put into rotary tub 32. The weight detection method is the same as S10 of fig. 3. In S210, the control unit 220 further determines the amount of detergent used, the amount of water, and the like based on the determined weight, and displays the determined amount of detergent used and the determined amount of water on the display unit 14. Thus, the user can know the amount of the detergent to be put into the rotary tub 32.
In S212, control unit 220 determines cleaning start scheduled time TS 2. The predetermined washing start time TS2 is a time for starting the washing process in S220, and the control unit 220 determines the washing and drying operation time required for the washing operation and the drying operation based on the weight of the laundry detected in S210. Then, control unit 220 determines a time before the first scheduled cleaning and drying end time TW1 by the cleaning and drying operation time as predetermined cleaning start time TS 2. Then, control unit 220 causes memory 222 to store predetermined cleaning start time TS 2.
In S214, the control unit 220 monitors the arrival of the scheduled cleaning start time TS 2. If the current time is scheduled cleaning start time TS2, control unit 220 determines yes in S214 and proceeds to S220.
In S220, the control unit 220 executes the washing process, and when the washing process is completed, the flow proceeds to S222.
In S222, the control unit 220 determines whether a request signal is received from the mobile terminal 100 while the washing process is being performed. The request signal is a signal transmitted from mobile terminal 100 by performing an operation for the user to set second washing and drying end scheduled time TW2 as washing and drying end scheduled time TW on display unit 102 of mobile terminal 100. That is, the request signal is a signal for requesting a change of the scheduled washing and drying end time TW of the washing and drying operation, and is a signal including the second scheduled washing and drying end time TW 2. When the request signal is received from the mobile terminal 100 (yes in S222), the control unit 220 proceeds to S224, and when the request signal is not received from the mobile terminal 100 (no in S222), the control unit proceeds to S230.
In S224, the control part 220 determines the washing standby time. The washing standby time is a time of standby after the washing process is finished. The method of determining the washing standby time is the same as the method of determining the drying standby time of the first embodiment (refer to S36 of fig. 3). Control unit 220 stores the washing standby time and second washing/drying completion scheduled time TW2 in the request signal in memory 222. When second scheduled cleaning/drying end time TW2 in the received request signal is earlier than first scheduled cleaning/drying end time TW1 in memory 222, controller 220 does not determine the washing standby time. In this case, the control unit 220 does not execute S224 and S226.
In S226, the control unit 220 monitors that the washing standby time has elapsed. If the washing standby time has elapsed, the controller 220 determines yes in S226 and proceeds to S230.
In S230, the control unit 220 executes the rinsing process, and when the rinsing process is completed, the flow proceeds to S232.
In S232, the control unit 220 determines whether a request signal is received from the mobile terminal 100 during the rinsing process. When the request signal is received from the mobile terminal 100 (yes in S232), the control unit 220 proceeds to S234, and when the request signal is not received from the mobile terminal 100 (no in S232), the control unit proceeds to S240.
In S234, the control unit 220 determines the rinsing standby time. The rinsing standby time is a time of standby after the rinsing process is finished. The method of determining the rinsing standby time is the same as the method of determining the drying standby time of the first embodiment (refer to S36 of fig. 3). Control unit 220 stores the rinsing standby time and second washing/drying completion scheduled time TW2 in the request signal in memory 222. When second scheduled cleaning and drying end time TW2 in the received request signal is earlier than first scheduled cleaning and drying end time TW1 in memory 222, controller 220 does not determine the rinsing standby time. In this case, the control unit 220 does not execute S234 and S236.
In S236, the control unit 220 monitors that the rinsing standby time has elapsed. When the rinsing standby time has elapsed, the controller 220 determines yes in S236 and proceeds to S240.
In S240, the control unit 220 executes the dehydration step, and when the dehydration step is completed, the process proceeds to S250.
In S250, the control unit 220 executes the drying process (fig. 8). The control unit 220 performs a drying operation in the drying process. When the drying process is finished, the process of fig. 7 is finished.
(drying treatment; FIG. 8)
Next, the drying process executed in S250 in fig. 7 will be described with reference to fig. 8. The process performed in fig. 8 is the same as the process of fig. 3 except that S12, S14 of fig. 3 are not included. S260, S270 to S304 correspond to S10, S20 to S54 in fig. 3, respectively.
According to the above configuration, when the control unit 220 of the washing and drying machine 210 receives the request signal including the second scheduled washing and drying end time TW2 from the mobile terminal 100 while the drying operation included in the washing and drying operation is being executed (yes in S284 of fig. 8), the drying standby time is determined based on the second scheduled washing and drying end time TW2 (S286). Then, the control unit 220 stops the driving of the electric heater 44 (S288), and drives the electric heater 44 when the drying standby time has elapsed after the stopping of the driving of the electric heater 44 (yes in S290) (S300). In this case, the washing and drying operation is ended at the second washing and drying end scheduled time TW 2. On the other hand, when the control unit 220 does not receive the request signal from the mobile terminal 100 while the drying operation is being executed (no in S284), the drying standby time is not determined. Therefore, the control unit 220 does not stop the driving of the electric heater 44 during the drying operation (specifically, during the period from the constant-speed drying step to the deceleration drying step). In this case, the washing and drying operation is ended at the first washing and drying end scheduled time TW 1. Therefore, control unit 220 ends the washing and drying operation at latest scheduled washing and drying end time TW (first scheduled washing and drying end time TW1 or second scheduled washing and drying end time TW 2).
As described above, when the request signal is not received from the portable terminal 100 while the washing and drying operation is being executed (no in S284), the control unit 220 does not stop the driving of the electric heater 44. Thus, the energy efficiency of the washing and drying machine 210 is improved as compared to the case where the driving of the electric heater 44 must be stopped even if the request signal is not received from the mobile terminal 100 in the course of performing the drying operation.
Further, the control unit 220 stops the electric heater 44 after the constant-speed drying process is completed (S288). That is, the control unit 220 stops the electric heater 44 before the deceleration drying process is performed. The drying rate of the laundry after the constant-speed drying process is completed is relatively high. That is, the amount of moisture contained in the laundry is relatively small. In this case, when the driving of the electric heater 44 is restarted, the temperature of the laundry rises faster than in the case where the moisture content of the laundry is relatively large. Therefore, even if the driving of the electric heater 44 is stopped, the laundry can be dried relatively quickly.
(corresponding relationship)
The control section 220 of the washing and drying machine 210 is an example of a "control section".
While several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention.
In fig. 3, the control unit 20 may be configured to execute the process of S54 while executing the deceleration drying process of S50 (first modification). In the present modification, upon receiving a request signal from the portable terminal 100 while the deceleration drying process is being executed, the control unit 20 stops driving of the electric heater 44 and the heat exchanger 46, and interrupts the deceleration drying process during the drying standby time. When the drying standby time elapses, the control unit 20 drives the electric heater 44 and the heat exchanger 46 to restart the deceleration drying process.
In fig. 3, the control unit 20 may be configured to execute the process of S34 while executing the constant speed drying process of S30 (second modification). In the present modification, upon receiving the request signal while the constant-speed drying process is being executed, the control unit 20 stops the driving of the electric heater 44 and the heat exchanger 46, and interrupts the constant-speed drying process during the drying standby time. When the drying standby time elapses, the control unit 20 drives the electric heater 44 and the heat exchanger 46 to restart the constant-speed drying process. If the laundry is left in a completely dried state, wrinkles are easily generated in the laundry. According to the above configuration, the control unit 20 stops the electric heater 44 during the constant-speed drying process. During the constant-speed drying process, the laundry contains moisture. In this state, even if the driving of the electric heater 44 is stopped, that is, the laundry is placed, wrinkles are less likely to be generated in the laundry. When the standby time elapses, the control unit 20 performs the constant-speed drying step and the deceleration drying step (S50). Therefore, by stopping the driving of the electric heater 44 during the constant-speed drying process, the generation of wrinkles in the laundry can be suppressed.
(third modification) "heating device" is not limited to the electric heater 44, and may be a heat pump or the like.
These embodiments and modifications are included in the scope and gist of the invention, and are also included in the scope and equivalents of the invention described in the claims.
Claims (4)
1. A clothes dryer is provided with:
a rotary tub for accommodating the laundry;
a motor for rotating the rotary tub;
a heating device for heating air;
a fan for supplying air heated by the heating device to the rotary tub; and
a control unit that controls operations of the motor, the heating device, and the fan,
the control part is configured to be capable of executing a drying operation for drying the clothes in the rotary tub, the drying operation includes a constant speed drying process for driving the motor, the heating device and the fan and a deceleration drying process for driving the motor, the heating device and the fan after the constant speed drying process,
the control unit, when a scheduled drying end time of the drying operation is acquired, stores the acquired scheduled drying end time as a first scheduled drying end time, and starts the drying operation based on the first scheduled drying end time,
the control unit determines a standby time, which is a time for stopping the driving of the heating device, based on a second scheduled drying end time when receiving a request signal including the second scheduled drying end time, which is a time later than the first scheduled drying end time, from an external device while the drying operation is being performed,
the control part stops the driving of the heating device in the process of executing the drying operation,
the control unit drives the heating device to restart the drying operation after the standby time has elapsed after the driving of the heating device is stopped,
and performing the drying operation without determining the standby time when the request signal is not received from the external device during the drying operation.
2. The laundry dryer of claim 1,
the control unit stops driving of the heating device after the constant-speed drying process is completed when the request signal is received from the external device during execution of the constant-speed drying process,
the control unit drives the heating device to restart the drying operation when the standby time has elapsed after stopping the driving of the heating device.
3. The laundry dryer of claim 1,
the control unit stops driving of the heating device during the constant-speed drying process when the request signal is received from the external device during the constant-speed drying process,
the control unit drives the heating device to restart the constant-speed drying process when the standby time has elapsed after stopping the driving of the heating device.
4. A cleaning dryer is provided with:
a rotary tub for accommodating the laundry;
a motor for rotating the rotary tub;
a heating device for heating air;
a fan for supplying the hot air heated by the heating device to the rotary tub;
a control unit that controls operations of the motor, the heating device, and the fan,
the control unit is configured to be capable of executing a washing and drying operation including a washing operation and a drying operation,
the drying operation includes a constant-speed drying process of driving the heating device and the fan and a deceleration drying process of driving the motor, the heating device and the fan, which is performed after the constant-speed drying process,
the control unit stores the acquired scheduled cleaning/drying end time as a first scheduled cleaning/drying end time when the scheduled cleaning/drying end time of the cleaning/drying operation is acquired, and starts the cleaning/drying operation based on the first scheduled cleaning/drying end time,
the control unit determines a standby time, which is a time for stopping the driving of the heating device, based on a second scheduled cleaning and drying end time when receiving a request signal including the second scheduled cleaning and drying end time, which is a time later than the first scheduled cleaning and drying end time, from an external device while the drying operation included in the cleaning and drying operation is being executed,
the control unit stops the driving of the heating device,
the control unit drives the heating device to restart the drying operation after the standby time has elapsed after the driving of the heating device is stopped,
and performing the drying operation without determining the standby time when the request signal is not received from the external device during the drying operation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-116980 | 2018-06-20 | ||
| JP2018116980A JP7082532B2 (en) | 2018-06-20 | 2018-06-20 | Clothes dryer and washer / dryer |
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| CN110616554A CN110616554A (en) | 2019-12-27 |
| CN110616554B true CN110616554B (en) | 2021-12-21 |
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| CN201910401741.3A Active CN110616554B (en) | 2018-06-20 | 2019-05-15 | Clothes dryer and washing dryer |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP7082532B2 (en) | 2022-06-08 |
| JP2019217028A (en) | 2019-12-26 |
| CN110616554A (en) | 2019-12-27 |
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