JP2016052394A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing and drying machine capable of reducing drying unevenness and wrinkle attachment of clothes in a drying step, and capable of improving finish.SOLUTION: A washing and drying machine includes control means capable of executing a washing and drying course including steps of washing, dewatering and drying respectively regarding clothes in a rotary tub. This control means is configured so as to execute a first drying step and a second drying step sequentially regarding the drying step in which clothes after the dewatering step are dried by dry air in the washing and drying course. In the first drying step, a rotary tub motor is driven and controlled in such a manner that larger movement is imparted on the clothes in the rotary tub than in the second drying step as a rotary tub operation.SELECTED DRAWING: Figure 7

Description

  Embodiments described herein relate generally to a washing dryer.

Conventionally, a washing and drying machine performs a washing process, a rinsing process, a dehydrating process, and a drying process, and for example, a heat pump is used as a drying means.
In this type of washing machine, for example, when a dehydration process is performed in which a drum as a rotating tub is rotated at a high speed, the centrifugal force generated during the rotation causes the clothes to be tangled with each other on the inner peripheral surface of the drum. Often becomes. For this reason, if the drying process is performed in this state, there is a problem that uneven drying of the clothes is likely to occur, and wrinkling of the clothes after drying becomes severe.

JP 2008-194258 A

  In view of this, there is provided a washing / drying machine capable of reducing uneven drying and wrinkling of clothes in the drying process and improving the finish.

  The washing / drying machine according to the embodiment is provided with a water tank disposed in an outer box, and is rotatably disposed in the water tank, and stores clothes, and is rotationally driven using a rotation tank motor as a drive source. A rotating tub and a drying air for drying the clothes in the rotating tub, each of a washing fan, a dehydration, and a drying process for a fan that uses a fan motor as a drive source and the clothes in the rotating tub Control means capable of executing a washing / drying course including the first drying process and the second drying for the drying process in which the clothes after the dehydration process are dried by the drying air in the washing / drying course. The rotary tub motor is configured to be capable of sequentially executing a stroke, and in the first drying stroke, the rotary tub motor is configured to give a larger movement to the clothes in the rotary tub than the second drying stroke. The The dynamic control.

Longitudinal side view schematically showing the washing and drying machine of the first embodiment The same longitudinal rear view Schematic configuration diagram of drying means Block diagram showing electrical configuration Explanatory drawing which shows each process of a washing drying course and a drying course Flow chart showing control contents of control device Diagram for explaining the contents of the laundry drying course control Diagram for explaining the control content of the drying course The figure which shows the relationship between each drying process and rotation speed of a ventilation fan about 2nd Embodiment. FIG. 9 equivalent diagram showing the third embodiment. FIG. 7 equivalent view showing the fourth embodiment (A) is explanatory drawing of cloth peeling process, (b) is a figure which shows the relationship between each drying process, the temperature difference of the entrance / exit of a drying wind, and a drying rate. The figure which shows the relationship between each drying process, the operating frequency of a compressor, and the temperature which concerns on drying air about 5th Embodiment.

<First Embodiment>
A first embodiment will be described with reference to FIGS. In the washing / drying machine 10 shown in FIG. 1, the outer box 11 has a substantially rectangular box-like outer shape, and a circular opening serving as a clothing input port is opened and closed by a door 11 a on the front side of the outer box 11. 11b is formed.

  A cylindrical water tank 12 is supported inside the outer box 11 via an elastic support mechanism (not shown) in a state where the water tank 12 is inclined upward. A cylindrical rotating tub 13 capable of storing clothes (laundry) is rotatably supported in the water tub 12. The rotating tank 13 is configured as an inner tank (drum) inclined upward in the same manner as the water tank 12 as an outer tank. Thus, the water tub 12 and the rotating tub 13 function as a drying chamber capable of storing clothes and also serve as a washing tub. That is, the water tub 12 and the rotating tub 13 constituting the washing tub / drying chamber function as a washing tub during a washing process for washing clothes and the like, and function as a drying chamber during a drying process for drying. .

  The water tank 12 is provided with an opening 121 at one end of a cylindrical body, and a water tank end plate 122 at the other end. Similarly, the rotating tub 13 has an opening 131 at one end of a cylindrical body, and a rotating tub end plate 132 at the other end.

  The water tank 12 has an exhaust port 16 and an air supply port 17 as shown in FIG. The exhaust port 16 is an opening provided on the upper front portion of the body of the water tank 12, that is, the peripheral wall. The air supply port 17 is an opening provided in a portion slightly above the center of the end plate 122 in the water tank end plate 122. The exhaust port 16 and the air supply port 17 communicate the inside and the outside of the water tank 12. Moreover, the water tank 12 has the drainage part 18 in the rear-end side of the bottom part. The drainage unit 18 is located below the exhaust port 16 and the air supply port 17, and includes a drainage port 123, a drainage valve 19, and a drainage hose 20. By opening the drain valve 19, the water in the water tank 12 is discharged from the drain port 123 to the outside of the washing / drying machine 10 via the drain valve 19 and the drain hose 20.

  The rotary tank 13 has a plurality of holes 21 and a plurality of communication ports 22. The hole 21 and the communication port 22 communicate the inside and the outside of the rotary tank 13. The hole 21 is formed over the entire area of the peripheral wall, which is the trunk of the rotating tank 13, and the communication port 22 is formed over the entire area of the rotating tank end plate 132. The hole 21 and the communication port 22 function as water holes through which water mainly enters and exits during the washing process and the dewatering process, and function as air holes through which air enters and exits during the drying process. In FIG. 1, for convenience of explanation, only some of the plurality of holes 21 and the communication ports 22 are shown. Although not shown, a plurality of baffles capable of stirring clothes stored in the rotating tub 13 are provided inside the trunk of the rotating tub 13.

  A rotary tank motor 14 is provided outside the water tank end plate 122. The rotary tank motor 14 is composed of, for example, an outer rotor type DC brushless motor, and its shaft portion 141 penetrates the water tank end plate 122 and protrudes to the inside of the water tank 12, and is fixed to the central portion of the rotary tank end plate 132. Yes. Thereby, the rotating tank motor 14 rotates the rotating tank 13 relative to the water tank 12. In this case, the shaft portion 141, the rotation axis of the rotating tub 13, and the central axis of the water tub 12 coincide with each other.

  The door 11a opens and closes the opening 11b of the outer box 11 by rotating through a hinge (not shown). The opening 11b of the outer box 11 is connected to the opening 121 of the water tank 12 by a bellows 112, and clothes are put into and out of the rotating tank 13 through the openings 121 and 131 with the door 11a opened.

  In addition, an operation panel 24 (see FIGS. 1 and 4) having a display unit 24a and an operation unit 24b and a detergent case 15a (see a two-dot chain line in FIG. 1) are arranged on the upper front surface of the outer box 11 on the left and right. Arranged. The operation unit 24b in the operation panel 24 includes various keys or various switches, and the user performs selection of an operation course such as a washing / drying course and various settings by operating these keys. The display unit 24a is a display unit composed of a liquid crystal display panel or the like, and displays various setting items, operation details, and the like. The display unit 24a corresponds to course selection means for selecting a driving course together with the operation unit 24b.

  A water supply case 26 having a detergent case storage portion 15b is provided at the upper left corner of the outer box 11, and the detergent case 15a is arranged so as to be able to be withdrawn / withdrawn from the detergent case storage portion 15b. . In the detergent case 15a, there are formed a plurality of rooms for storing various types of laundry agents (detergents, softeners, bleaching agents, etc.) for each type, and the laundry agents contained in each room are stored. It can be turned on automatically during operation. A reed switch 15c (see FIG. 4) is incorporated in the detergent case storage portion 15b, and a magnet 15d (see FIG. 1) is incorporated in the detergent case 15a. Accordingly, when the detergent case 15a is stored and set in the detergent case storage portion 15b, the reed switch 15c is activated (detects the setting of the detergent case 15a) when the magnet 15d comes close to the reed switch 15c. ing.

  As shown in FIG. 2, a water supply device 25 is provided on the upper portion of the outer box 11. The water supply device 25 includes the water supply case 26, a water supply valve 27, a water supply hose 28, and the like. One end of the water supply hose 28 is connected to the water supply valve 27 and the other end is connected to an external water source such as a water supply. The water supply valve 27 is driven to open and close by a control device 23 (see FIG. 4) described later, thereby supplying water from the water source into the water tank 12 through the water supply hose 28, the water supply valve 27, and the water supply case 26. .

  As shown also in FIG. 3, the washing / drying machine 10 includes a circular ventilation path (circulation wind path) 30 having the water tank 12 as a part of the path. The ventilation path 30 includes, for example, an exhaust duct 31, a filter device 32, a connection duct 33, a heat exchange unit 34, and an air supply duct 35, and the exhaust port 16 and the air supply port are provided outside the water tank 12 by these members 31 to 35. 17 is connected. Specifically, the exhaust duct 31 connects the exhaust port 16 of the water tank 12 and the filter device 32 (see FIGS. 1 and 3), and the exhaust duct 31 is configured by, for example, a bellows-like hose. . The filter device 32 is provided on the inner upper portion of the outer box 11, and a filter 321 is provided inside the device 32. When the air exhausted from the exhaust port 16 passes through the filter 321 of the filter device 32, foreign matters such as lint are removed. In addition, the arrow shown in FIGS. 1-3 has shown the flow of the air in the ventilation path 30 in the case of a drying process.

  The filter device 32 is connected to the upstream side of the heat exchanging section 34 via a connection duct 33 extending downward. The heat exchange part 34 is provided in the inner lower part of the outer box 11, and generates dry hot air by dehumidifying and heating the air passing through the heat exchange part 34. An evaporator 36 is disposed in the heat exchanging section 34, and a condenser 37 is disposed on the downstream side thereof. The evaporator 36 and the condenser 37 together with a compressor 38 and a decompression device (decompression unit) 39 provided outside the heat exchanging unit 34 constitute a heat pump 40 as a drying unit. The air passing through the heat exchange section 34 is cooled by the evaporator 36 and dehumidified thereby. The air dehumidified by the evaporator 36 is then heated by the condenser 37 to become warm air.

  In the heat pump 40, the compressor 38, the condenser 37, the decompression device 39, and the evaporator 36 are connected in this order in a closed loop by the refrigerant pipe 40a, and the refrigerant is circulated by the operation of the compressor 38. It has become. Although neither the evaporator 36 nor the condenser 37 is shown in detail in detail, the evaporator 36 and the condenser 37 are of a finned tube type in which a large number of heat transfer fins are arranged at a fine pitch on the refrigerant circulation pipe, and have excellent heat exchange properties. Between the heat transfer fins, the above-described air flow (circulation wind) in the ventilation path 30 passes.

  The compressor 38 is configured to be able to change the operating frequency (drive rotational speed of the compressor 38) by drive control (for example, inverter control) by the control device 23. In this way, by changing the operating frequency of the compressor 38, the supply pressure of the refrigerant discharged from the compressor 38 is changed, whereby the heating capacity of the condenser 37 and the cooling capacity of the evaporator 36 are changed. The decompression device 39 decompresses the high-pressure liquid refrigerant discharged from the condenser 37 to bring it into a low-pressure gas-liquid mixed state. For example, so-called electric expansion in which the throttle opening can be adjusted by the control of the control device 23. It consists of valves.

  The downstream side of the heat exchange unit 34 is connected to the air supply port 17 of the water tank 12 through the air supply duct 35. And the blower 41 which forms the above-mentioned circulating wind is provided in the connection part of the heat exchange part 34 and the air supply duct 35. As shown in FIG. The blower 41 of the present embodiment is configured by a blower fan 41a made of, for example, a sirocco fan and a fan motor 41b. The blower fan 41a is configured such that the rotational speed can be changed by controlling the drive of the fan motor 41b by the control device 23. Thus, the blower fan 41a in the ventilation path 30 sucks the air in the heat exchange section 34 and discharges it to the air supply duct 35 side. Thereby, as shown with the arrow of FIGS. 1-3, the flow of the air which circulates through the water tank 12 (and rotation tank 13) and the ventilation path 30 arises. Looking at the air flow in the ventilation path 30 in this case, the exhaust port 16 is on the most upstream side, and the air supply port 17 is on the most downstream side.

  In this configuration, when the compressor 38 and the fan motor 41b are driven, the warm air (dry air) dehumidified and heated in the heat exchanging section 34 is supplied via the air supply duct 35 by the air blowing action of the air blowing fan 41a. It is supplied from the air supply port 17 into the water tank 12. Thereafter, the warm air mainly enters the rotary tank 13 from the communication port 22, takes moisture away from the clothes in the rotary tank 13, and then exits from the hole 21 to the outside of the rotary tank 13. The air containing moisture is sucked into the ventilation path 30 from the exhaust port 16. The air sucked into the ventilation path 30 first passes through the exhaust duct 31 and the filter device 32. At this time, the lint that comes out of the clothes and is contained in the air is collected by the filter 321 provided in the filter device 32. Thereafter, it flows to the heat exchanging section 34 through the connection duct 33. In this way, in the drying process, dry air is generated by the heat pump 40, and air is circulated between the water tank 12 and the ventilation path 30 by the air blowing action of the blower fan 41a, and the clothes in the rotary tank 13 are dried. It is like that.

  In the present embodiment, the inlet air temperature sensor 44 that detects the inlet air temperature supplied to the water tank 12 (the rotating tank 13) through the air supply duct 35 as the first temperature detecting means for detecting the temperature related to the drying air. (See FIG. 4). Further, as shown in FIG. 4, an outlet air temperature sensor 45 for detecting the outlet air temperature discharged from the rotary tank 13 to the exhaust duct 31 is provided. The inlet air temperature sensor 44 corresponds to inlet temperature detection means, and the outlet air temperature sensor 45 corresponds to outlet temperature detection means.

  FIG. 4 is a block diagram schematically showing the electrical configuration of the washing / drying machine 10 described above. The control device 23 is mainly composed of a microcomputer, and controls the overall operation of the washing and drying machine 10 including the washing process to the drying process for washing and drying the clothes in the rotary tub 13.

  The control unit 23 is connected to the display unit 24a, the operation unit 24b, the reed switch 15c, the inlet air temperature sensor 44, and the outlet air temperature sensor 45, and inputs these signals. In addition, a motor rotation sensor 48 that detects the rotation speed of the rotary tub motor 14, a current sensor 43 that detects the current flowing through the rotary tub motor 14, and a water level sensor 49 that detects the water level in the water tank 12 are connected to the control device 23. These signals are also input. As will be described in detail later, an electrode 52 is connected to the control device 23 and its signal is also input.

  The control device 23 is provided with non-volatile storage means (non-volatile memory 47 such as EEPROM or flash memory) in which an estimated required time table, an operation control program, a threshold value, and the like are stored. And the control apparatus 23 controls the rotary tank motor 14, the drain valve 19, the water supply valve 27, the compressor 38, the decompression device 39, the fan motor 41b, etc. based on the above-mentioned various input signals.

  In this way, a washing process including washing, rinsing, dehydration, and the like, and a drying process (both processes are shown in FIG. 5) are automatically executed by the control device 23 as the control means in accordance with the operation course selected by the user. The Specifically, the washing process includes a washing process of washing the clothes, a rinsing process of rinsing the detergent-washed clothes, and a dehydration process of dewatering the wet clothes. In the washing / drying machine 10, each process can be executed independently or each process can be executed in series. The user can perform a washing course by performing a setting operation in the operation unit 24 b. An arbitrary driving course can be selected from a drying course for performing a drying process and a washing course for washing and a drying process (hereinafter abbreviated as a washing course).

  As will be described in the following description of the operation, in the present embodiment, the content of control is different between the drying process in the drying course and the drying process in the washing and drying course, and each drying process depends on the weight of the clothing. By performing the control, drying unevenness and wrinkle of clothing are suppressed. In FIG. 5, for convenience of explanation, “washing course 1” and “drying course 1” in (a) and “washing course 2” and “drying course 2” in (b) are shown side by side. In the first embodiment, the former (a) course 1 will be described, and the latter (b) course 2 will be described later as another embodiment.

Next, the operation of the above configuration will be described with reference to FIGS.
The user accommodates the clothes in the rotating tub 13 and then operates the operation unit 24b to select a desired driving course and starts driving. Here, the control device 23 receives the setting of the operation course (step S1), and determines whether or not the set operation course is the washing course (step S2). When it is determined that the set operation course is a washing course (YES in Step 2), the control device 23 sequentially performs a series of steps including a washing step and a drying step including washing, rinsing, and dehydration. Execute (Step S3).

  At the start of washing in the washing process, the weight of clothes in the rotating tub 13 is determined. That is, the control device 23 is configured as clothing weight detection means that performs vector control of the rotating tub motor 14 and performs weight detection control for detecting the weight of the clothing accommodated in the rotating tub 13. In the weight detection control, the rotating tub motor 14 rapidly rotates the rotating tub 13 to, for example, 170 rpm, the current value flowing through the rotating tub motor 14 during the rapid rotation is detected by the current sensor 43, and the detected current value (torque) The weight of the clothing is detected based on the q-axis current value corresponding to the component. The clothing weight is divided into weight ranks W1, W2, W3, and W4 in a plurality of stages (for example, four stages) according to a threshold value serving as a reference that defines a range of a predetermined weight (4 kg, etc.) according to the detected current. .

  The nonvolatile memory 47 stores a predicted required time table associated with the required time of the drying process (or the required time until the washing and drying course is completed) for each of the weight ranks W1 to W4. 23 is a drying time predicting means for reading the required time predicted based on the detected clothing weight and displaying it on the display unit 24a. The time required for the drying process means the time from the start of the drying process to the time when the drying level reaches the preset drying standard when clothes of an arbitrary weight are dried. The part 24a predicts and displays the time required from the start of the washing process to the end of the drying process, including the time required for the drying process.

  At the start of washing in the washing process, the control device 23 opens the water supply valve 27 and supplies water at a predetermined water level into the water tank 12 (detergent is automatically supplied at the initial stage of water supply). The control device 23 performs washing by alternately rotating the rotating tub 13 in both forward and reverse directions by the rotating tub motor 14. During this process, the water level (water amount) in the rotating tub 13 is set to a predetermined amount of water. After reaching and stabilizing, the magnitude of torque fluctuation of the rotating tub motor 14 is detected based on the q-axis current value described above. The magnitude of the torque fluctuation (fluctuation width and average value) becomes larger as the water absorption of the clothes increases. In this respect, the clothes in the rotating tub 13 have a high water absorption when the cotton ratio is relatively large, so that the torque fluctuation is large, whereas the water absorption is low when the chemical fiber (chemical fiber) is relatively large. Torque fluctuation is reduced. Based on the magnitude of this torque fluctuation and the above-described clothing weight, the control device 23 determines the fabric quality of the clothing as a fabric quality detection means (step S4). That is, by determining the magnitude of the torque fluctuation for each weight rank based on the correlation between the magnitude of torque fluctuation of the rotary tub motor 14 and the water absorption of the clothing, the clothing is cotton-based or synthetic fiber-based (cotton Whether or not the ratio is relatively large).

  In step S4, when it is determined that the cotton ratio is relatively high in the clothing quality in the rotary tub 13 (YES), the control device 23 operates before starting the final rinse during the washing process. Temporarily stop (step S5). Next, the control device 23 causes the display unit 24a to display a display for prompting additional addition of the softening agent (step S6). In this case, the display unit 24a displays, for example, “Please input more softening agent. The finish will be better”.

  After step S6, the control device 23 waits until it is determined that a softening agent has been additionally charged (YES in step S7) (step S8). Whether or not the softening agent is inserted is determined by the fact that the magnet 15d comes close to the reed switch 15c when the detergent case 15a in which the user additionally inputs the softening agent is stored in the detergent case storage unit 15b. By detecting the set of the detergent case 15a, it can be determined by the control device 23.

  Thus, the control device 23 executes the final rinsing process and the final dehydration process in order (step S9) on condition that the softener is additionally charged (YES in step S7). At the start of the final rinse, the softener is automatically charged by the operation of supplying water from the water supply valve 27 to the water tank 12 through the water supply case 26 (detergent case 15a). In the final rinsing process, the rotating tub 13 is alternately rotated in both forward and reverse directions at a low speed in the same manner as in the washing process, and in the final dehydrating process, the rotating tub 13 is rotated at a high speed so that the clothes in the rotating tub 13 are rotated. Is centrifugally dehydrated. Thus, when the washing process is completed, the drying process is started (step S10). In the drying process, the rotating tank 13 is rotated in both forward and reverse directions, the blower fan 41a is driven by the fan motor 41b, and the compressor 38 is activated to operate the heat pump 40. Thereby, as described above, a drying process is performed in which air is circulated between the water tank 12 and the ventilation path 30 and the air is dehumidified and heated in the ventilation path 30. Among these, the drive of the fan motor 41b and the start of the compressor 38 can be started by the control device 23 in the middle of the final dehydration process. Details of the start-up and operating frequency of the compressor 38 will be described later.

  In the present embodiment, for example, the drying process (see the washing course 1 in FIG. 5A) is performed in the order of the first drying process A and the second drying process B on condition that the weight of the clothes is equal to or less than a predetermined weight. Is done. Specifically, when it is determined that the clothing weight is equal to or less than a predetermined weight (for example, 4 kg) set in advance, the control device 23 first executes the first drying process A. The weight detection control is not limited to the start of the washing process, and may be executed after the final dehydration process or after a cloth peeling process described later.

  In the first drying process A, the control contents are different from those in the second drying process B, and a large movement is given to the clothes in the rotating tank 13 as a rotating tank operation in order to loosen the clothes entangled in the last final dehydrating process. Thus, the rotary tank motor 14 is driven and controlled.

  The operation of the rotating tank in the first drying process A will be described with reference to FIG. The figure shows the “fan rotation speed” (rotation speed of the fan motor 41b) and “rotation tank rotation speed” (rotation of the rotation tank motor 14) in the first drying process A and the second drying process B of the washing course 1. Number), “rotation time limit” (forward / reverse rotation time limit of the rotary tank motor 14).

  That is, as represented by “rotation tank rotation speed” in FIG. 7, the rotation tank operation in the first drying process A performs the rotation speed (rotation) of the rotation tank motor 14 in order to loosen the clothes entangled in the last final dehydration process. The speed setting value) is set to, for example, 50 [rpm], and is set to be higher than, for example, 47 [rpm], which is the rotational speed of the rotary tank motor 14 in the second drying step B. Thereby, in the 1st drying process A, since big movement is given to clothes in turn tank 13, and clothes are lifted and dropped by rotation of rotation tank 13, it becomes easy to eliminate entanglement of clothes.

  In addition, as represented by “rotation time” in FIG. 7, the rotation tank operation in the first drying process A has a rotation time TA of, for example, 15 seconds, and the rotation time TB in the second drying process B, for example, 7 seconds. Longer than that. More specifically, in the first drying process A, each time period (respective continuous rotation time) of the forward rotation and the reverse rotation of the rotary tank motor 14 is set to a relatively long TA, and the forward / reverse rotation thereof is performed. repeat. Thereby, a big movement can be given to the clothing in the rotating tub 13, and the drying unevenness in the 2nd drying process after that can be prevented.

  On the other hand, in the 2nd drying process B, each time period of forward rotation and reverse rotation is set to a relatively short TB for the rotary tank motor 14, and the off time Ts1, Ts2 when the rotary tank 13 stops every time the rotation direction is switched. (For example, both are 2 seconds). By repeating such a forward rotation-stop-reverse rotation-stop cycle, drying is performed while preventing entanglement between clothes and suppressing wrinkles.

  Further, as represented by “Blower fan rotation speed” in FIG. 7, in the second drying step B, the rotation speed of the fan fan 41a (of the fan motor 41b) (Rotation speed setting value) is set higher. For example, the rotation speed of the blower fan 41a is 4300 [rpm] in the first drying process A and 4800 [rpm] in the drying process B. In this regard, in the drying course 1 (see FIG. 5) described later, there is no washing process, and the clothes are bulky in the rotating tub 13 at the start of drying, and the drying air is difficult to pass through. Good. On the other hand, in the main washing / drying course 1, clothes may stick to the inner peripheral surface of the rotating tub 13 due to the final dehydration and may be hardened. Therefore, in the first drying step A, the rotational speed of the blower fan 41a is It is easy to pass dry wind even if it is low. Therefore, the second drying operation is performed by performing the operation of the rotating tank in the first drying step A to promote the loosening of the clothes and to set the rotation speed of the blower fan 41a to be gradually dehumidified. Wrinkle of clothing is suppressed through the process B.

  As is clear from the description of the “rotating tank rotational speed” and “rotation time limit”, the amount of rotation of the rotating tank motor 14 per unit time in the first drying process is the same as the rotating tank per unit time in the second drying process. The amount of rotation of the motor 14 is greater than that, and the first drying process A can be said to be a process of imparting a relatively large movement to the clothes in the rotating tub 13 to loosen the clothes. In addition, the second drying process B can prevent the clothes from being entangled and can be said to be a process of drying the clothes while suppressing wrinkles by setting the above-described “fan fan rotation speed”.

  Then, the control device 23 performs the second drying from the first drying step A when the time required for the drying step predicted based on the weight of the clothes (total time including the drying steps A and B) becomes 1/4. Move to process B. That is, the control apparatus 23 prescribes | regulates the ratio (it may be 1/4 or less) which the said rotation tank operation occupies among the time of the whole drying process A and B, and transfers to the 2nd drying process B. A suitable timing is obtained by calculation from the required time. As a result, in the first drying step A, the clothing is loosened at an initial stage suitable for loosening the clothing according to the clothing weight (drying time), and a drying period in the second drying step B is sufficiently secured. be able to.

When the controller 23 determines that the required time has been reached in the second drying step B, the controller 23 stops the operation of the heat pump 40 in step S11, stops the driving of the fan motor 41b and the rotary tank motor 14, and performs drying. The process (driving course 1 operation) is completed.
If it is determined in step S2 that the set operation course is not a washing and drying course (NO), operation in the set course is performed in step S12 (step S12). This step S12 will be described by taking the drying course 1 (see FIGS. 5A and 8) in which only the drying step B is executed as an example.

In the drying course 1, weight detection control is performed at the start of the drying process B. And the control apparatus 23 is the same control content as the 2nd drying process B in the above-mentioned washing course 1 when it judges that the detected clothing weight is below a predetermined weight (for example, 4 kg) set up beforehand. The drying process B of the drying course 1 is performed.
That is, when the drying process B of the drying course 1 is started, the rotary tank motor 14 and the fan motor 41b are driven, and the compressor 38 is started to operate the heat pump 40. In the drying process B, as shown by “small weight” in FIG. 8, when the weight of the clothes is 4 kg or less, for example, the rotary tank motor is the same as the second drying process B in the washing course 1 described above when the clothes weight is small. 14, each time period (rotation time period) of forward rotation and reverse rotation is set to a relatively short TB (for example, 7 seconds), and each time the rotation direction is switched, the off time Ts1, Ts2 (for example, whichever 2 seconds).

  On the other hand, in the drying course 1, when the control device 23 determines that the clothing weight is relatively large (for example, exceeding 4 kg), the rotating tub motor 14 is rotated forward as indicated by “heavy weight” in FIG. And each time period of reverse rotation is set to a relatively long TB ′ (for example, 30 seconds), and it is rotated in both forward and reverse directions without providing an off time. Thereby, when the clothing weight is large, the amount of rotation of the rotating tub motor 14 (and the amount of rotation per unit time) is larger in both the forward and reverse directions than when the clothing weight is small.

  Although not shown in FIG. 8, in the drying course 1, as in the second drying process B of the washing / drying course 1, when the clothing weight is small, the rotational speed of the rotary tank motor 14 is set to be relatively low, for example. You may set the rotation amount of the rotary tank motor 14 per unit time smaller by setting to 47 [rpm]. Further, as described in the second embodiment, the rotational speed of the blower fan 41a may be set for each of the drying courses 1 according to the weight of clothes (see FIG. 9).

Also in the drying course 1 described above, the time required for the drying process is predicted based on the weight detection control, and the drying process B is completed when the required time corresponding to the clothing weight has elapsed (step S11).
In the above-described “washing course 1”, when it is determined that “heavy” is determined in step S10, only the drying process B is executed without passing through the first drying process A. The drying process B at the time of “heavy” in the washing and drying course 1 has the same content as the drying process B at the time of “heavy” in the drying course 1. In addition, the first drying process A of the washing / drying course 1 described above is executed only when the condition relating to the weight of the clothes (not limited to 4 kg or less, as long as the condition that the weight is relatively small) is satisfied. It becomes.

  As described above, in the washing / drying course 1, the control device 23 according to the present embodiment sequentially executes the first drying process A and the second drying process B in the drying process in which the clothes after the dehydration process are dried with the drying air. In the first drying process A, the rotation tank motor 14 is driven and controlled so that the clothes in the rotation tank 13 have a larger movement than the second drying process B as the rotation tank operation.

  According to this, by applying a large movement to the clothes in the rotating tank 13 by the rotating tank operation in the first drying step A, it is possible to perform a so-called unraveling operation and to easily eliminate the entanglement between the clothes. Thereby, the entanglement of clothes can be eliminated before the 2nd drying process B, and wrinkle of clothes can be reduced.

  In addition, the operation | movement of the said rotary tank observes the 1st drying process A whole and the 2nd drying process B whole comprehensively, and the 1st drying process A has a bigger movement to clothing than the 2nd drying process B. It only needs to be given. That is, even if the “rotation amount of the rotary tank motor 14 per unit time” is set to temporarily take a larger value in the second drying process B than in the first drying process A, the entire first drying process A is performed. If the average value in the relationship is larger than the average value in the entire second drying process B, the first drying process A as a whole can give a larger movement to the clothing than the second drying process B. I can say that. Such a relationship is also valid for a heating period to be described later for performing the rotating tank operation and a constant rate drying period.

  Further, the control device 23 sets the rotation amount of the rotary tank motor 14 per unit time in the first drying process A in the washing / drying course 1 to be larger than the rotation amount of the rotary tank motor 14 per unit time in the second drying process B. Perform a large rotating tank operation. According to this, since the rotation amount of the rotation tank motor 14 is larger than that in the second drying process B, the rotation operation of the rotation tank in the first drying process A can give a large movement to the clothes in the rotation tank 13. it can. Therefore, the same effects as described above can be achieved, such as tangling between clothes can be eliminated in the first drying step A.

  The control device 23 rotates so that the rotation speed (set value of the rotation speed) of the rotation tank 13 in the rotation tank operation of the first drying process A is higher than the rotation speed of the rotation tank 13 in the second drying process B. The tank motor 14 is driven and controlled. For example, if the rotation speed of the rotating tank 13 is low, there is a concern that the clothes may behave only at the inner lower portion of the rotating tank 13, but in the first drying process A, the rotation speed of the rotating tank 13 is increased. Thus, for example, the clothes are repeatedly lifted and dropped by the rotation of the rotating tub 13, and the above-described effect of unraveling can be enhanced.

  The control device 23 drives and controls the fan motor 41b so that the rotational speed of the blower fan 41a in the rotating tank operation in the first drying process A is lower than the rotational speed of the blower fan 41a in the second drying process B. According to this, in the 1st drying process A, the rotation speed of a ventilation fan is set low, the temperature rise in the rotation tank 13 is made moderate, and it is made to dehumidify gradually, and suppresses wrinkle of clothing. be able to.

  The control device 23 drives and controls the rotary tank motor 14 so that the rotation time of the rotation tank 13 in the rotation tank operation of the first drying process A is longer than the rotation time of the rotation tank 13 in the second drying process B. Thus, the loosening of the clothing in the first drying process A is promoted. According to this, in the drying process A, the rotation time of the rotary tank 13 can be lengthened, and a larger movement can be given to the clothes in the rotary tank 13. Therefore, it becomes easy to eliminate entanglement between clothes, and drying unevenness in the subsequent second drying step B can be prevented.

  In the drying process, when the weight of the clothes is large, the clothes are entangled with the rotation of the rotating tub 13 by the weight of the garment itself. It is hard to be loosened. In this regard, the control device 23 sequentially executes the first drying process A and the second drying process B on the condition that the clothing weight detected as the clothing weight detection means is equal to or less than the predetermined weight, and does not satisfy the condition. In this case, the drying process B not including the rotary tank operation control is performed. According to this, appropriate drying processes A and B can be performed according to the clothing weight, and even when the clothing weight is small, the entanglement between the clothing can be eliminated by the operation of the rotating tank.

  Regarding the first drying step A, if the rotation amount of the rotary tub 13 is too large, the clothing may be entangled and may have an adverse effect. On the other hand, if the rotation amount of the rotary tub 13 is small when the clothing weight is large, There is a risk that it will be difficult to dry because it is not evenly dried. In this regard, the control device 23, when the rotation amount of the rotary tank motor 14 per unit time in the first drying process A executed when the above condition is satisfied (see the time limit TA in FIG. 7) does not satisfy the above condition. The rotary tank motor 14 is driven and controlled so as to be smaller than the rotation amount rotation amount of the rotary tank motor 14 per unit time in the drying step B (see time limit TB ′ in FIG. 8). According to this, in the first drying process A, even when the weight of the garment is equal to or less than the predetermined weight, the desired amount of rotation of the rotary tub 13 can be obtained, and the entanglement of the garment can be more reliably eliminated.

  When the drying course 1 is selected by the course selecting means, the control device 23 performs a control different from the drying process of the washing course 1 by executing a drying process that does not include the rotary tank operation control. According to this, in the drying course, it is not necessary to consider the sticking of the clothing in the rotating tub 13 during dehydration, and therefore an appropriate drying process according to the course contents and according to the state of the clothing in the rotating tub 13. It can be performed.

  The control device 23 is configured as a drying time predicting unit, and the time point of the first drying process with respect to the total time length of the drying process including the first drying process and the second drying process becomes a predetermined time ratio. Thus, by moving from the first drying step A to the second drying step B, the operation of the rotating tank is performed at the initial stage of the drying step. According to this, the 1st drying process A and the 2nd drying process B can be performed at a predetermined time ratio according to the time of the whole drying process, respectively, and the finish can be improved as a whole.

Second Embodiment
FIG. 9 is a diagram showing the relationship between the drying steps A and B and the rotational speed of the blower fan 41a in the second embodiment. Hereinafter, differences from the first embodiment will be described. In the washing / drying course 1 of the second embodiment, when it is determined that the clothing weight exceeds a predetermined weight (for example, 4 kg) based on the detection result of the weight detection means, the clothing weight is compared with the case where the clothing weight is not more than the predetermined weight. And the rotation speed of the ventilation fan 41a in the 2nd drying process B is made low.

  That is, in the second embodiment, the control device 23 may execute the drying processes A and B regardless of the clothing weight (or may set the condition for executing the drying processes A and B to a value exceeding 4 kg. ), When it is determined that the weight of the clothes exceeds 4 kg, for example, the rotational speed of the blower fan 41a (fan motor 41b) in the second drying process B is set to, for example, 4300 [rpm] (see “heavy” in FIG. 9) ). On the other hand, when it is determined that the clothing weight is 4 kg or less, for example, the control device 23 sets the rotational speed of the blower fan 41a in the second drying process B to 4800 [rpm] (see “low weight” in FIG. 9). ).

  In this respect, when the weight of the garment is relatively large, the garment has no room for the bulky space in the rotary tank 13, and thus the garment cannot be moved greatly. Accordingly, if the rotational speed of the blower fan 41a is high, the clothes are pressed down in the rotating tub 13 and wrinkles are likely to occur. In addition, when the rotational speed of the blower fan 41a is high, the circulation of air passing through the water tank 12 (rotating tank 13) and the ventilation path 30 is fast, so that the drying progresses quickly and causes wrinkles of clothes.

  On the other hand, when the clothing weight is relatively large, the control device 23 of the second embodiment drives and controls the fan motor 41b so that the rotational speed of the blower fan 41a in the second drying process B is reduced. According to this, when the weight of the clothes is relatively large, the momentum of the drying air sent to the rotating tub 13 becomes relatively weak, and the drying proceeds slowly, so that it can be dried while suppressing wrinkles. Moreover, the ventilation effect | action of the ventilation fan 41a according to clothing weight can be obtained, and a finish can be improved irrespective of clothing weight.

  In addition, you may apply the control of the fan motor 41b according to the clothing weight of this 2nd Embodiment to the drying course 1 in 1st Embodiment. Specifically, in the drying process B of the drying course 1 in FIG. 8, when the clothing weight is large, the rotation speed of the blower fan 41a is set to 4300 [rpm], for example, and when the clothing weight is small, the rotation of the blower fan 41a. By setting the number to, for example, 4800 [rpm], the same effect as in the second embodiment can be obtained.

<Third Embodiment>
FIG. 10 is a view corresponding to FIG. 9 showing the third embodiment. Hereinafter, differences from the first embodiment will be described. In the washing / drying course 1 of the third embodiment, when it is determined (determined) that the ratio of cotton is large for the cloth quality of the clothes based on the detection result of the cloth quality detecting means, the air blowing in the second drying process B is performed. The rotation speed of the fan 41a is made lower.

  In other words, in the third embodiment, the control device 23 causes the rotational speed of the blower fan 41a to be lower when the cloth quality determined as the cloth quality detection means is a cotton type compared to the case of the synthetic fiber type. For example, it is set to 4300 [rpm]. On the other hand, the control apparatus 23 sets to 4800 [rpm], for example, when the determined cloth quality is a synthetic fiber type.

  In this regard, cotton (cotton) clothing tends to be wrinkled more easily than synthetic fiber (chemical fabric) clothing, and the air passing through the water tank 12 and the ventilation path 30 when the rotational speed of the blower fan 41a is high. Because of the fast circulation, drying progresses quickly and causes wrinkling of clothing.

  On the other hand, when the control device 23 of the third embodiment determines that the cotton ratio is relatively large for the cloth quality of the clothing, the cotton ratio is relative to the rotational speed of the blower fan 41a in the drying process. The fan motor 41b is driven and controlled so as to be lower than in the case of a few synthetic fibers. According to this, when the ratio of cotton is relatively large, the momentum of the drying air sent to the rotating tub 13 becomes relatively weak and the drying progresses slowly, so that wrinkling of the clothing can be suppressed. Moreover, the ventilation effect | action of the ventilation fan 41a according to cloth quality can be obtained, and a finish can be improved irrespective of cloth quality.

  In addition, as shown in FIG. 10, you may set the rotation speed of the ventilation fan 41a in the 1st drying process A to a value less than 4300 [rpm]. Further, the rotational speed of the blower fan 41a in the second drying step B is not limited to the above set value, and can be changed as appropriate. Further, in the present disclosure, in the second drying process B of the washing / drying course 1, the configuration of each embodiment described above (and will be described later), such as setting the rotational speed of the blower fan 41a based on the cloth quality and weight of clothes. The configuration of the embodiments may be appropriately combined, or may be appropriately changed by omitting a part of the configuration of each embodiment.

  Further, for example, in the second drying process B, when the control device 23 determines that the cotton ratio is large for the cloth quality of the clothes based on the detection result of the cloth quality detecting means, the rotation tank motor 14 per unit time The rotary tank motor 14 is driven and controlled so that the rotation amount becomes smaller. Specifically, in the second drying process, when the control device 23 determines that the cotton ratio is relatively large, for example, the rotation time TB is set to be shorter than 7 seconds (or the rotation speed of the rotary tank motor 14). Lower). In this respect, wrinkles of clothing are likely to occur even when a long part such as a sleeve of clothing is caught or twisted by the rotation of the rotating tub 13, and particularly cotton-based clothing does not spread the sleeve after the drying process is finished. However, according to the above configuration, when the cotton ratio is relatively large, the amount of rotation of the rotary tub motor 14 per unit time is set to be smaller, so that the clothes are entangled and wrinkled. Sticking can be suppressed.

<Fourth embodiment>
FIG. 11 and FIG. 12 show the fourth embodiment, and differences from the first embodiment will be described. The washing course 2 and the drying course 2 of the fourth embodiment (see FIGS. 11 and 5B) have a third drying process C, and the washing course 1 and the drying course 1 of the first embodiment. And different.

  That is, as shown in FIG. 5B, the control device 23 sequentially executes the first drying process A, the second drying process B, and the third drying process C in the washing / drying course 2, and in the drying course 2, The second drying process B and the third drying process C are sequentially executed. Further, as shown in FIG. 11, in the drying process C, the rotation of the rotary tank 13 is set to a rotation time TC (for example, 5 seconds) that is shorter than the rotation time TB of the second drying process B, and the rotation direction is switched. OFF times Ts1 and Ts2 (for example, both are 2 seconds) during which the rotating tank 13 stops each time. Thus, by shortening the time limit TC of the forward rotation and the reverse rotation of the rotating tub 13, that is, the continuous rotation time, the clothes are prevented from being entangled and wrinkled. Further, in the drying step C, the rotation speed of the rotary tank 13 is also set to a value lower than 47 [rpm], for example, and the rotation amount of the rotary tank motor 14 per unit time is generally reduced.

  Further, the rotational speed of the blower fan 41a in the third drying process C is, for example, lower than the rotational speed of the fan 41a in the second drying process B, and is the same as the rotational speed of the fan 41a in the first drying process A 4300 [ rpm]. As will be described below, the drying step C has a drying rate of about 85%, and is a stage where wrinkles are likely to occur, so that the wrinkle is suppressed by lowering the rotational speed again and slowing the progress of drying. It has become. In the fourth embodiment, the cloth peeling process is performed before starting a series of drying processes A to C including the drying process C.

Here, FIG. 12B shows the relationship between each drying process, the temperature difference between the inlet and outlet of the drying air, and the drying rate, and FIG. 12A shows the cloth peeling process.
Specifically, after the final dehydration process, the control device 23 peels the clothes in a state of being attached to the inner peripheral surface of the rotary tank 13 in the final dehydration process until the process proceeds to the first drying process A. The cloth peeling process is executed. In the cloth peeling process, for example, the rotating tub 13 is intermittently rotated forward, the rotating tub motor 14 is set to 30 [rpm], the rotation time limit is set to 5 seconds, and the rotating tub 13 is rotated. Is provided with an off time of 10 seconds. Thus, the cloth peeling process is to rotate the rotating tank 13 more slowly than the drying processes A to C described above, and the normal rotation (5 seconds) -stop (10 seconds) -forward rotation (5 seconds) -stop ( 10 seconds) is repeated three times as one cycle, and the clothes on the inner peripheral surface of the rotating tub 13 are peeled off. Therefore, in the 1st drying process A which transfers after that, since clothes are peeling from the inner peripheral surface of the rotation tank 13, clothing can fully be loosened.

  In addition, the control device 23 detects the degree of drying of the clothes in the rotary tank 13 as to the transition from the first drying process A to the second drying process B and the transition from the second drying process B to the third drying process. To do it. Although detailed illustration is omitted, the electrode 52 (see FIG. 4) is provided so as to face the rotary tank 13 from the front side of the rotary tank 13, for example. The electrode 52 is configured as a dryness detection unit that detects the contact resistance of clothing when it comes into contact with the clothing in the rotating tub 13 and outputs a detection signal to the control device 23. Note that the contact resistance [Ω] of clothing has a well-known correspondence that the drying rate [%] of clothing increases as its value increases.

  And the control apparatus 23 reads the contact resistance of the clothing which contacts the electrode 52 during the first drying process A, and the contact resistance corresponds to the first drying rate (for example, 75% shown in FIG. 12B). When it is determined that the predetermined first resistance value has been reached, the process proceeds to the second drying step B. In addition, the control device 23 reads the contact resistance of the clothing in contact with the electrode 52 during the second drying process B, and the contact resistance corresponds to a predetermined second resistance value corresponding to the second drying rate (for example, 85%). If it is determined that the value has reached, the process proceeds to the third drying step C. In addition, a data table associated with the contact resistance in advance is stored in the nonvolatile memory 47 for the drying rate, and the contact resistance read by the control device 23 is collated on the data table, so that It is possible to determine how the clothes are dried.

  The first drying rate is set to a value of 80% or less (for example, in the range of 75 to 80%), or is set to a drying rate that is 1/4 or less of the entire drying process time as in the first embodiment. May be. Thereby, the timing of shifting to the second drying step B is the difference between the detected temperature of the inlet air temperature sensor 44 and the detected temperature of the outlet air temperature sensor 45 (that is, the inlet / outlet temperature difference of the water tank 12 shown in FIG. 12B). Is the time before the maximum value (ΔTmax). In addition, the second drying rate may be set to a value within the range of 85 to 88%. At this time, the timing that shifts to the third drying step C is also the temperature detected by both the air temperature sensors 44 and 45. This is the time before the difference reaches the maximum value (ΔTmax).

  As described above, when the control device 23 of the fourth embodiment determines that the clothes have reached a predetermined drying condition based on the detection result of the drying condition detection means (for example, the electrode 52), the first drying process A starts. Shift to the second drying step B. According to this, since it can be made to transfer from the 1st drying process A to the 2nd drying process B at the appropriate timing according to progress of the drying of the clothes in rotation tank 13, wrinkles etc. are controlled further. And the finish can be improved.

  Further, since the control device 23 determines the dryness of the clothing based on the contact resistance detected by the electrode 52 as the dryness detection means, the contact resistance of the clothing is combined with the drying process A that suppresses the entanglement of the clothing. Can be detected more accurately, and uneven drying can be prevented.

  The dryness detection means is not limited to the electrode 52, and may be configured using the air temperature sensors 44, 45 or a humidity sensor (not shown). That is, as shown in FIG. 12 (b), the “entrance / exit temperature difference” has a correlation that increases with the “drying rate” until the maximum temperature difference (ΔTmax) is reached as the clothes are dried. The controller 23 can determine the drying condition of the clothes based on the entrance / exit temperature difference. In addition, the humidity sensor is provided in the outer box 11 so as to detect the humidity of the air circulating through the water tank 12 and the ventilation path 30, and based on the detected humidity, the degree of drying of the clothing during the drying operation is determined. Can do. Note that the “drying process C” in the drying course 2 of FIG. 5B can be controlled in the same manner as the third drying process C of the washing and drying course 2 described above, and a detailed description thereof will be omitted.

<Fifth Embodiment>
FIG. 13 shows a fifth embodiment, and points different from the fourth embodiment will be described. The control device 23 of the fifth embodiment variably controls the compressor 38 based on the detection result of the first temperature detection means. Here, as the first temperature detecting means, the inlet air temperature sensor 44 corresponding to the “drum inlet temperature” shown in FIG. 13 or the air temperature sensors 44 and 45 corresponding to the “outlet / outlet temperature difference” can be used. . Further, by changing the number of revolutions of the compressor 38, the discharge refrigerant temperature, and hence the drying capacity by the heat pump 40, is changed, and three periods of a heating period, a constant rate drying period, and a reduced rate drying period shown in FIG. After that, dry the clothes.

  Specifically, during the heating period in the early stage of drying, the compressor 23 is started by the control device 23, and the operation frequency is set and maintained at the highest value, and the temperature of the air supplied to the rotary tank 13 is increased. It is considered as a period. During the heating period, the first drying step A is performed. During the heating period, since the evaporation of moisture from the clothes is still small, the clothes are not easily wrinkled even if the clothes move in the rotary tank 13. The start time of the first drying step A (the rotary tank operation) may be any time after the start of the compressor 38 and before the start of the decrease in the maximum operating frequency.

When determining that the predetermined temperature α has been reached based on the detection result of the inlet air temperature sensor 44, the control device 23 lowers the operating frequency of the compressor 38 from the maximum operating frequency, and shifts to the constant rate drying period. The constant rate drying period is a period during which control is performed to vary the operating frequency of the compressor 38 in accordance with the temperature detected by the inlet air temperature sensor 44 in order to maintain the temperature of the air supplied to the rotary tank 13.
In accordance with the transition to the constant rate drying period, the process proceeds to the second drying process B. Alternatively, before and after the transition to the constant rate drying period (before or after the transition to the constant rate drying period), the process proceeds to the second drying step B. In the constant rate drying period, evaporation of moisture from the clothing starts and the clothing is more likely to wrinkle compared to the heating period. Therefore, the second drying process B in which the rotation speed of the rotating tank 13 is reduced or the rotation time period is shortened. By performing this, wrinkling can be further reduced.

  When the control device 23 determines that the temperature difference (ΔT) has reached the predetermined temperature β based on the detection results of the air temperature sensors 44 and 45, the control device 23 further reduces the operating frequency of the compressor 38 to reduce the drying rate. Migrate to For this reason, the progress of drying becomes more gradual during the decreasing rate drying period. In accordance with the transition to the decreasing rate drying period (or before and after the transition to the decreasing rate drying period), the process proceeds to the third drying step C. The rate-of-decreasing drying period is a period in which the clothes are substantially dry and are likely to wrinkle, so that the wrinkle is generated by performing the third drying process C in which the rotation speed of the rotating tank 13 is further reduced or the rotation time is shortened. Can be further reduced.

  As described above, the control device 23 of the fifth embodiment is configured to variably control the drying capacity of the drying means (for example, the operating frequency of the compressor 38) in the drying steps A to C, and the drying capacity of the drying means. A drying period including a heating period in which the temperature of the drying air is raised by the control and a constant rate drying period after this heating period is set. The rotary tank motor 14 is driven and controlled so as to give a large movement to the clothes in the tank 13.

  According to this, a so-called unraveling operation can be performed by applying a large movement to the clothes in the rotating tank 13 by the rotating tank operation during the heating period, and the entanglement between the clothes can be easily eliminated. Thereby, entanglement of clothing can be eliminated before the constant rate drying period, and wrinkling of clothing can be reduced. The drying means is not limited to the heat pump 40 and may be composed of one or more drying heaters. The drying capacity of the drying heater can be varied by, for example, suppressing the output of the drying heater or energizing one or all of the plurality of drying heaters.

  The control device 23 is configured to be able to sequentially execute a first drying process A and a second drying process B that perform a rotating tank operation in the drying processes A to C, and starts the compressor 38 to The first drying stroke A is executed at the maximum operating frequency of the compressor 38, and after the compressor 38 reaches the maximum operating frequency, the first drying stroke A is shifted to the second drying stroke B as the maximum operating frequency starts decreasing. Let According to this, the drying processes A and B corresponding to the drying state of the clothes or the operation of the compressor 38 can be executed, and the wrinkles of the clothes are generally caused by the decrease in the operation frequency of the compressor 38. Can be suppressed.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and equivalents thereof.

  As described above, the configurations of the embodiments can be selectively combined, or can be implemented with appropriate modifications, such as omitting a part of the configurations of the embodiments. For example, in the first drying process A of the washing course 1, the rotation tank 13 (rotation tank) per unit time is set by setting either one of “rotation tank rotation speed” or “rotation time limit” in FIG. The rotation amount of the motor 14) can be made larger than the rotation amount of the rotary tank 13 per unit time in the second drying process. Further, in the first drying step A, the acceleration of the rotary tub motor 14 and the time for which the acceleration is continued may be controlled so as to give a large movement to the clothing as the rotary tub operation.

  In the drawings, 10 is a washing / drying machine, 11 is an outer box, 12 is a water tank, 13 is a rotation tank, 14 is a rotation tank motor, 23 is a control means (clothing weight detection means, drying time prediction means), and 24a and 24b are courses. Selection means, 30 is a ventilation path (circulation air path), 36 is an evaporator, 37 is a condenser, 38 is a compressor, 40 is a drying means, 41a is a blower fan, 41b is a fan motor, 44 is a first temperature detection means (Inlet temperature detection means, dryness detection means), 45 indicates an outlet temperature detection means (dryness detection means), and 52 indicates an electrode (dryness detection means).

Claims (13)

A water tank disposed in the outer box;
A rotating tub that is rotatably arranged in the water tub and that contains clothing and is driven to rotate using a rotating tub motor as a drive source;
Sending dry air for drying clothes in the rotating tub, a fan that uses a fan motor as a drive source,
A control means capable of executing a washing and drying course including washing, dehydrating, and drying steps for the clothes in the rotating tub,
The control means includes
In the washing and drying course, the drying process for drying the clothes after the dehydration process by the drying air is configured to be able to sequentially execute the first drying process and the second drying process, and in the first drying process, A washing and drying machine that drives and controls the rotating tub motor so as to give a larger movement to the clothes in the rotating tub than the second drying process as a rotating tub operation. A water tank disposed in the outer box;
A rotating tub that is rotatably arranged in the water tub and that contains clothing and is driven to rotate using a rotating tub motor as a drive source;
Sending dry air for drying clothes in the rotating tub, a fan that uses a fan motor as a drive source,
A control means capable of executing a washing and drying course including washing, dehydrating, and drying steps for the clothes in the rotating tub,
The control means includes
In the washing and drying course, the drying process for drying the clothes after the dehydration process by the drying air is configured to be able to sequentially execute the first drying process and the second drying process, and in the first drying process, A washing and drying machine that performs a rotating tub operation in which a rotation amount of the rotary tub motor per unit time is set larger than a rotation amount of the rotary tub motor per unit time in the second drying step.   The control means drives and controls the rotary tank motor so that the rotation speed of the rotation tank in the operation of the rotary tank in the first drying process is higher than the rotation speed of the rotation tank in the second drying process. The washing / drying machine according to claim 1 or 2.   The said control means drives and controls the said fan motor so that the rotation speed of the said ventilation fan in the rotation tank operation | movement of the said 1st drying process may become lower than the rotation speed of the said ventilation fan in the said 2nd drying process. The washing dryer according to any one of 1 to 3.   The said control means drives and controls the said rotary tank motor so that the rotation time of the said rotation tank in the rotation tank operation | movement of the said 1st drying process may become longer than the rotation time of the said rotation tank in the said 2nd drying process. Item 5. The washing dryer according to any one of Items 1 to 4. Garment weight detection means for detecting the weight of the garment in the rotating tub,
The control means sequentially executes the first drying process and the second drying process on condition that the clothing weight detected by the clothing weight detection means is equal to or less than a predetermined weight, and the condition is not satisfied. The laundry dryer according to any one of claims 1 to 5, wherein a drying step that does not include the rotary tank operation control is executed.   The control means per unit time in the drying stroke executed when the rotation amount of the rotary tank motor per unit time in the first drying stroke executed when the condition is satisfied does not satisfy the condition. The washing / drying machine according to claim 6, wherein the rotary tub motor is driven and controlled to be smaller than the rotation amount of the rotary tub motor. A course selection means for selecting the washing / drying course for performing the washing, dehydration and drying, and the drying course for performing the drying,
The said control means performs control different from the drying process of the said washing drying course by performing the drying process which does not include the said rotation tank operation control, when the said drying course is selected by the course selection means. The washing dryer according to any one of 7. A circular air passage with the water tank as a part of the path;
A drying means arranged with the blower fan in the ventilation path to generate the drying air;
A drying condition detection means for detecting the drying condition of the clothes in the rotating tub,
The control means, when judging that the clothes have reached a predetermined drying condition based on the detection result of the drying condition detection means, causes the first drying process to shift to the second drying process. The washing dryer according to any one of the above. As the drying condition detecting means, an inlet temperature detecting means for detecting an inlet air temperature supplied to the water tank by the blower fan, and an outlet temperature detecting means for detecting an outlet air temperature discharged from the water tank to the ventilation path, An electrode that detects contact resistance of the clothing when the clothing in the rotating tub comes into contact with, and a humidity sensor that detects humidity in the outer box or the path of the ventilation path,
The control means includes a temperature difference between the inlet air temperature detected by the inlet temperature detecting means and the outlet air temperature detected by the outlet temperature detecting means, the contact resistance detected by the electrodes, The washing / drying machine according to claim 9, wherein the degree of drying of the clothing is determined based on any detection result of humidity detected by a humidity sensor. A circular air passage with the water tank as a part of the path;
A drying means disposed in the ventilation path to generate the drying air;
Drying time predicting means for predicting the time required for drying the clothes,
Based on the prediction of the drying time predicting means, the control means has a predetermined time ratio of the time of the first drying process with respect to the total time length of the drying process including the first drying process and the second drying process. 9. The washing and drying machine according to claim 1, wherein at the time, the rotary tub operation is performed in an initial stage of the drying process by shifting from the first drying process to the second drying process. A water tank disposed in the outer box;
A rotating tub that is rotatably arranged in the water tub and that contains clothing and is driven to rotate using a rotating tub motor as a drive source;
Provided in the ventilation path, for sending dry air for drying clothes in the rotating tub, and a blower fan using a fan motor as a drive source;
A circular air passage with the water tank as a part of the path;
A drying means disposed in the ventilation path to generate the drying air;
A control means capable of executing a washing and drying course including washing, dehydrating, and drying steps for the clothes in the rotating tub,
The control means includes
In the configuration of variably controlling the drying capacity of the drying means in the drying step of drying the clothes after the dehydration step in the washing and drying course with the drying air,
A drying period including a heating period in which the temperature of the drying air is increased by controlling the drying capacity of the drying unit, and a constant rate drying period after the heating period is set,
In the heating period, a rinse drier that drives and controls the rotary tank motor so as to give a larger movement to clothes in the rotary tank than the constant rate drying period as a rotary tank operation. Compressor, condenser, decompression means, and evaporator are connected in a closed loop with a refrigerant line. Among them, the evaporator and condenser are arranged in the ventilation path, and dry air is generated as the drying means. A heat pump,
The control means includes
In the drying process, the first drying process for performing the rotating tank operation and the second drying process can be sequentially performed,
Activating the compressor and performing the first drying step at the highest operating frequency of the compressor;
The laundry dryer according to claim 12, wherein after the compressor reaches a maximum operating frequency, the first drying process is shifted to the second drying process as the maximum operating frequency starts decreasing.

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