JP5934616B2 - Washing and drying machine - Google Patents

Description

  The present invention relates generally to a laundry dryer, and more particularly to a laundry dryer using a heat pump as a heat source.

  As a washing / drying machine using a heat pump as a heat source, for example, a washing / drying machine described in JP 2006-296449 A (hereinafter referred to as Patent Document 1) is conventionally known. The washing and drying machine described in Patent Document 1 includes a heat pump device, a compressor, a blower, a control unit, and a current amount detection unit.

  In the washing / drying machine described in Patent Document 1, the current amount detection means detects the amount of current flowing into the washing machine from an AC power source. The control means operates the compressor and the blower in a process prior to the drying process. When the compressor and the blower operate, when the current value in the current amount detected by the current amount detection means approaches the upper limit value, for example, when the current value exceeds 14 amperes, the control means Decreasing the compression capacity reduces the input current to the compressor. Thereby, the said washing dryer can reduce the electric current value which flows in from AC power supply.

  As described above, in the process prior to the drying process, the compressor and the blower are operated, so that the temperature of the air that dries the object to be dried (referred to as drying air) is increased after the process moves to the drying process. Can be raised. Therefore, the time required for drying can be shortened in the drying step.

JP 2006-296449 A

  However, when the compressor and the blower operate in the step before the transition to the drying step, the control unit of the laundry dryer has an upper limit value, for example, the current value in the current amount detected by the current amount detection unit. The compressor capacity is improved to a value approaching 15 amps and the blower is activated. Therefore, in the process before shifting to the drying process, the amount of power consumed by the washing dryer increases. Thus, even if the washing dryer described in patent document 1 can shorten the time required for drying in the drying process, the power consumption of the laundry dryer in the process before shifting to the drying process is reduced. There is no consideration for suppression.

  Accordingly, an object of the present invention is to provide a washing / drying machine capable of quickly raising the temperature of the drying air and suppressing the power consumption in the process before shifting to the drying process.

  The washing dryer according to the present invention includes a heat pump device, a drying chamber, a blower, and a control unit. The heat pump device includes a compressor. The compressor has a drive unit. The drying chamber stores an object to be dried. Moreover, the air heated in the heat pump apparatus is supplied to the drying chamber. The blower has a rotating part. The blower sends air heated in the heat pump device to the drying chamber. The control unit controls the heat pump device and the rotating unit of the blower. The control unit executes any one of the first control, the second control, and the third control.

  In the first control, the operation of the compressor and the operation of the blower are started in the step before the drying step, which is the step of drying the object to be dried, and the blower is operated at a lower rotational speed than the rotational speed in the drying process. And the compressor drive unit rotates at a lower rotational speed than the rotational speed in the drying process.

  The second control is a control in which the operation of the compressor and the operation of the blower are started in the stroke before the drying stroke, and the rotating portion of the blower rotates at a rotation speed lower than the rotation speed in the drying stroke. is there.

  The third control is a control in which at least the operation of the compressor is started in the stroke before the drying stroke, and the compressor drive unit rotates at a rotation speed lower than the rotation speed in the drying stroke.

  In the washing / drying machine according to the present invention, the refrigerant is preheated by starting the operation of the compressor and the operation of the blower, or at least the operation of the compressor, in the step before the drying step. Therefore, the air flow path such as between the heat pump device and the drying chamber can be preheated from the stroke before the drying stroke. Therefore, the temperature of the drying air can be increased quickly from the start of the drying process. In addition, any one of the first control, the second control, and the third control, the output of which is suppressed compared to the drying process, is executed from the process before the drying process, It is possible to suppress the power consumption in the process before the drying process.

  As described above, according to the present invention, it is possible to provide a washing / drying machine capable of quickly raising the temperature of the drying air and suppressing the power consumption in the process before shifting to the drying process. it can.

  In the washing / drying machine according to the present invention, the washing / drying process preferably includes a washing process, a rinsing process, and a dehydration process in order as a process preceding the drying process. The control unit preferably starts any one of the first control, the second control, and the third control from the washing process.

  According to this configuration, preheating of the refrigerant is started from the washing process. Thus, by warming the refrigerant over a relatively long time, the air flow path between the heat pump device and the drying chamber can be sufficiently warmed.

  In the washing / drying machine according to the present invention, the washing / drying process preferably includes a washing process, a rinsing process, and a dehydration process in order as a process preceding the drying process. The control unit starts any one of the first control, the second control, and the third control from the rinsing process.

  According to this configuration, the preheating of the refrigerant is started from the rinsing process. Thus, the amount of power consumption can be further suppressed by warming the refrigerant from a process relatively close to the drying process. Further, it is possible to suppress the amount of heat once applied to the heat pump device and the flow path from being released by the start of the drying process. Therefore, power consumption can be further suppressed.

  In the washing / drying machine according to the present invention, the control unit preferably, when stopping the operation of the compressor in a stroke before the drying stroke, a predetermined time elapses from the time when the operation of the compressor is stopped. The compressor will resume operation.

  According to this configuration, among the refrigerants used in the heat pump device, the pressure of the refrigerant in the heat exchanger can be leveled.

  In the washing / drying machine according to the present invention, the control unit preferably includes a capacity detection unit that detects the capacity of the object to be dried accommodated in the drying chamber. In addition, the control unit preferably has a rotation number of the compressor drive unit and a rotation number of the blower rotation unit in the first control according to the volume of the object to be dried detected by the capacity detection unit, The rotational speed of the rotating part of the blower in the control 2 and the rotational speed of the driving part of the compressor in the third control are changed.

  According to this structure, according to the capacity | capacitance of a to-be-dried target object, a heat pump apparatus, a flow path, etc. can be warmed efficiently.

  In the washing and drying machine according to the present invention, a plurality of driving courses are preferably set. The control unit preferably, according to the operation course, the rotation number of the compressor drive unit and the rotation unit of the blower in the first control, the rotation number of the rotation unit of the blower in the second control, The rotation speed of the drive unit of the compressor in the third control is changed.

  According to this structure, a heat pump apparatus, a flow path, etc. can be warmed efficiently according to a driving | running course.

  As described above, according to the present invention, it is possible to provide a washing / drying machine capable of quickly raising the temperature of the drying air and suppressing the power consumption in the process before shifting to the drying process. Can do.

It is the schematic which shows the structure of the drum type washing-drying machine which is an example of the washing-drying machine according to this invention. It is a block diagram which shows each structure controlled by the control part of the washing / drying machine according to this invention. It is a figure which shows the example of the rotation speed of the drive part of the compressor in the each process performed by the washing / drying machine according to this invention, or the rotation speed of the rotation part of an air blower. It is a figure for demonstrating the state by which operation | movement of the compressor was stopped for the predetermined time in the process before a drying process, Comprising: Rotation of the drive part of the compressor in each process performed by the washing dryer according to this invention It is a figure which shows the example of a number.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a drum type laundry dryer 100 which is an example of a laundry dryer according to the present invention. As shown in FIG. 1, the drum type washing and drying machine 100 includes an outer box 1. The outer box 1 forms the outer shape of the main body of the drum type washing and drying machine 100. The drum type washing and drying machine 100 includes a water tank 2, a rotating drum 3, and a motor 4. The rotating drum 3 is rotated by the rotation of the motor 4.

  The rotating drum 3 has a cylindrical shape. In the cylinder, one end side (left side in FIG. 1) is opened, and the other end side (right side in FIG. 1) forms a bottom portion 3b having a bottom wall. The rotary drum 3 rotates around a rotation axis that is inclined from the horizontal direction or extends in the horizontal direction. As the material of the rotating drum 3, a stainless steel plate is generally used. A plurality of small holes (not shown) for water supply, drainage and ventilation are formed in the peripheral wall 3a and the bottom 3b of the rotary drum 3. The peripheral wall 3 a is a cylindrical part of the rotary drum 3. In the drum type washing and drying machine 100, the peripheral wall 3a has a substantially cylindrical shape. The peripheral wall 3a extends in a direction parallel to the direction in which the rotation axis extends.

  A plurality of baffles (not shown) are arranged on the peripheral wall 3a. The baffle extends substantially parallel to the rotation axis. Further, the baffle protrudes from the peripheral wall 3a inward in the radial direction of a circle centered on the rotation axis.

  The water tank 2 has a cylindrical shape. In the cylinder, one end side is open and the other end side has a bottom wall. The rotating drum 3 is accommodated in the space inside the water tank 2. A counterweight (not shown) is attached to the lower part of the water tank 2. A plurality of counterweights may be attached to the water tank 2 in order to balance the entire water tank 2. The counterweight may be attached to the upper part of the water tank 2. A liquid balancer (not shown) is attached outside the edge of the opening of the rotary drum 3.

  The rotating drum 3 stores the laundry 5 as an object to be dried. A drive shaft 41 is fixed to the outer surface of the bottom 3 b of the rotary drum 3. The motor 4 is attached to the outer surface of the bottom 2 b of the water tank 2. The motor 4 is connected to the drive shaft 41.

  The drum-type washing / drying machine 100 is a washing / drying machine that uses a heat pump device 13 including a compressor 7, a condenser 8, an evaporator 10, and an expansion valve 9 as a heat source. The compressor 7 compresses the refrigerant and raises the temperature of the refrigerant. The condenser 8 heats the air by exchanging heat between the refrigerant compressed by the compressor 7 and the air. The expansion valve 9 reduces the pressure of the refrigerant that heated the air. The evaporator 10 cools the air by exchanging heat between the decompressed refrigerant and the air. Further, the heat pump device 13 includes a refrigerant pipe 14. The refrigerant pipe 14 connects the compressor 7, the condenser 8, the expansion valve 9, and the evaporator 10 so that the refrigerant circulates in the order of the compressor 7, the condenser 8, the expansion valve 9, and the evaporator 10. .

  The drum type washing and drying machine 100 includes a drying chamber 32, a blower 11, a duct 18, and a control unit 90. A space inside the rotating drum 3 functions as a drying chamber 32. In addition, the air heated in the condenser 8 is supplied to the drying chamber 32. The blower 11 sends the heated air to the drying chamber 32. The blower 11 has a rotating part 11a. The rotating part 11a has a configuration including a general electric motor. The duct 18 has an exhaust duct 6 and an air supply duct 12. The air supply duct 12 is disposed between the condenser 8 and the drying chamber 32 so that the air heated in the condenser 8 is supplied to the drying chamber 32. The exhaust duct 6 is disposed between the drying chamber 32 and the evaporator 10 so that air used for drying the laundry 5 in the drying chamber 32 flows toward the evaporator 10. The air used for drying the laundry 5 circulates between the drying chamber 32 and the heat pump device 13 by flowing through the duct 18 along the direction indicated by the arrow.

  The condenser 8 and the evaporator 10 are fin tube type heat exchangers. In the heat pump device 13, drying air flows through the evaporator 10 and the condenser 8 in this order.

  As shown in FIG. 2, the control unit 90 includes a compressor control unit 911, a flow rate control unit 912, a blower control unit 93, a storage unit 94, a determination unit 95, a detection unit 96, and a timer 92. In the drum type washing / drying machine 100, the determination about the control necessary for the operation of the drum type washing / drying machine 100 is determined by the determination unit 95. The storage unit 94 stores data and the like necessary for the operation of the drum type washer / dryer 100.

  The storage unit 94 includes a ROM (Read Only Memory) and a RAM (Random Access Memory). The process of the drum type washing and drying machine 100 (see FIG. 1) includes a washing process, a rinsing process, and a dehydrating process in order as a process before the drying process. Information on the operation of each member in each stroke is recorded in the storage unit 94 as a program chart, for example. However, the information on the operation of each member in each stroke may be recorded in the storage unit 94 simply in a map shape or a table shape.

  The compressor 7 has a drive unit 15 that drives the compressor 7. The drive unit 15 constitutes a drive source for the compressor 7. A preferred example of the drive unit 15 is an induction motor. The motor as the drive unit 15 may be another electric motor. The driving unit 15 of the compressor 7 and the rotating unit 11a of the blower 11 are each connected to a circuit including a switch (not shown). The control unit 90 controls the switch so that the switch included in the circuit is switched on and off, so that the rotation start and rotation stop of the drive unit 15 and the rotation start and rotation stop of the rotation unit 11a are switched. It is done.

  The control unit 90 controls each member including the heat pump device 13 and the rotating unit 11a of the blower 11 in accordance with information recorded in a program or the like. The compressor control unit 911 controls the drive unit 15 of the compressor 7. The flow rate control unit 912 controls the expansion valve 9 to adjust the flow rate of the refrigerant flowing through the refrigerant pipe 14 (see FIG. 1). The blower control unit 93 controls the rotating unit 11 a of the blower 11. Further, the rotation of the motor 4 (see FIG. 1) of the rotating drum 3 and the operation of a water supply valve (not shown) that opens and closes a flow path through which water supplied to the water tank 2 (see FIG. 1) passes, etc. The operation of each member in the washing machine 100 is based on the control of the control unit 90.

  As shown in FIG. 1, the drum type washing and drying machine 100 includes a temperature sensor 16. The temperature sensor 16 detects the temperature of the refrigerant of the heat pump device 13. The temperature sensor 16 is disposed in the discharge part of the compressor 7. In addition, the discharge part of the compressor 7 is a part of the compressor 7 and is a part located on the side where the refrigerant flows out of the compressor 7 rather than the part where the refrigerant flows into the compressor 7. is there. Alternatively, the discharge part of the compressor 7 may be a part of the refrigerant pipe 14 through which the refrigerant flowing out of the compressor 7 passes, and may be a connection part between the refrigerant pipe 14 and the compressor 7.

  The detection unit 96 (see FIG. 2) is electronically or electrically connected to the temperature sensor 16. In the control unit 90, the detection unit 96 detects the temperature of the discharge unit of the compressor 7 detected by the temperature sensor 16. When the determination unit 95 determines that the temperature of the discharge unit of the compressor 7 detected by the detection unit 96 is equal to or higher than a predetermined temperature, the compressor control unit 911 temporarily rotates the drive unit 15. Stop. As will be described later, when the temperature of the discharge unit subsequently decreases, the compressor control unit 911 restarts the compressor 7 by rotating the drive unit 15. A predetermined temperature value set as a threshold value for stopping or restarting the rotation of the drive unit 15 is stored in the storage unit 94.

  The drum-type washing and drying machine 100 (see FIG. 1) includes a water level sensor 59 (see FIG. 2) that detects the water level of the water tank 2 (see FIG. 1) in the washing process or the rinsing process. The amount of water absorbed by each laundry 5 varies depending on the quality of the laundry 5. When a certain amount of water is supplied to the water tank 2, the water level of the water tank 2 differs depending on the quality of the laundry 5 accommodated in the rotating drum 3. The detection unit 96 detects the capacity of the laundry 5 based on the water level detected by the water level sensor 59 and the constant amount of water supplied to the water tank 2. The water level sensor 59 and the detection unit 96 are examples of a capacity detection unit.

  Below, with reference to FIG. 1 and FIG. 2, operation | movement of the drum type washing-drying machine 100 is demonstrated.

  First, the user opens a door (not shown), puts the laundry 5 into the rotating drum 3, and then closes the door. The detergent used for washing is put in a detergent case (not shown). If necessary, the user puts a finish into the detergent case. The user may add the finishing agent during the washing process or rinsing process.

  Next, the user operates an operation unit (not shown) installed in the outer box 1 to select a washing condition and a drying condition. Based on the operation of the operation unit by the user, the operation unit transmits a control signal to the control unit 90 (see FIG. 2), whereby the control unit 90 controls each member of the drum type washing and drying machine 100. For example, a washing process, a rinsing process, and a dehydrating process are sequentially performed according to the washing condition and the drying condition selected by the user. The detergent case and the operation unit (both not shown) are installed inside the outer box 1.

  The drum type washing / drying machine 100 has a plurality of operation courses. The drum-type washing / drying machine 100 includes, as an operation course, for example, a course in which a washing process and a rinsing process are performed over a standard time, a course in which a washing process and a rinsing process are performed with a reduced time, A course in which a washing process and a rinsing process are performed on a heavy object such as a blanket over a relatively long time. The user can select these driving courses by operating the operation unit.

  First, the washing process will be described. When the user presses the start button of the operation unit, the control unit 90 controls the door and the water supply valve (both not shown). Thereby, while a door is locked, tap water is supplied to the water tank 2 by opening a water supply valve. At this time, water in which the detergent contained in the detergent case is mixed is supplied to the water tank 2.

  After the water is supplied to the water tank 2, the rotating drum 3 is rotated by the motor 4 according to the rotation chart for the washing process. In the drum type washing and drying machine 100, the rotating drum 3 rotates at, for example, about 50 rpm. Regarding the rotation chart of the rotating drum 3, the rotation speed, the rotation period, the inversion period, and the like are different for each of the washing process, the rinsing process, and the dehydration process, or depending on the type of laundry 5 or the operation course. A plurality of rotation charts are preset. The rotation chart is programmed to be selected by the user or automatically.

  As will be described later, the control unit 90 starts the operation of the compressor 7 and the operation of the blower 11 in the washing process, and rotates the rotation unit 11a of the blower 11 at a rotation speed lower than the rotation speed in the drying process. And the drive part 15 of the compressor 7 is rotated at the rotation speed lower than the rotation speed in a drying process. The rotation chart of the drive unit 15 and the rotation chart of the rotation unit 11a are also set in advance in the program.

  When the rotation of the motor 4 in the washing process is completed according to the program, the water remaining in the water tank 2 is discharged out of the outer box 1 through a drainage section (not shown). After the drainage is completed, an intermediate dehydration process is performed. In this process, the rotary drum 3 rotates at a high speed according to the rotation chart for the intermediate dehydration process. In the intermediate dehydration process, the water contained in the laundry 5 is discharged from the rotary drum 3 to the water tank 2 through a small hole (not shown) by the centrifugal force generated by the rotation of the rotary drum 3. The water discharged into the water tank 2 flows downward along the inner wall surface of the water tank 2 and then is discharged out of the outer box 1 through the drainage section.

  When the intermediate dewatering process ends, the program moves from the intermediate dewatering process to the rinsing process. When the program shifts to the rinsing process, tap water is supplied to the aquarium 2 by opening the water supply valve. When a water level sensor (not shown) detects that water has been supplied to the water tank 2 to a predetermined water level, the water supply valve is closed. The controller 90 controls the circulation pump so that the circulation pump (not shown) is driven for a predetermined time after the water supply valve is closed. By the operation of the circulation pump, water circulates between the water tank 2 and the duct through a duct connecting the water tank 2 and the circulation pump. When the predetermined time has elapsed, the control unit 90 stops driving the circulation pump. Thereafter, the rotating drum 3 rotates according to the rotation chart for the rinsing process. Note that the circulating pump may be driven also when the rotary drum 3 rotates.

  After the intermediate dehydration process and the rinsing process are repeated a plurality of times, the program shifts from the rinsing process to the final rinsing process. When the program shifts to the final rinsing process, the water supply valve is opened, so that water containing the soft finish is supplied to the water tank 2.

  After a predetermined number of rinsing strokes, the program moves to the dewatering stroke. When the final rinsing process is completed, the water used for rinsing is discharged from the water tank 2 to the outside of the outer box 1. After the drainage is completed, the final dehydration process is performed so that the rotary drum 3 rotates at a high speed of, for example, 1000 rpm, according to the rotation chart for the final dehydration process. In the final dewatering process, as in the intermediate dewatering process, the moisture contained in the laundry 5 is discharged to the water tank 2 through a small hole (not shown) by the centrifugal force generated by the rotation of the rotating drum 3. After a predetermined time has elapsed since the start of the dehydration process, the control unit 90 cuts off the power to the motor 4 and then performs a stop process.

  Below, operation | movement of each member which heats the air supplied to the drying chamber 32 in order to dry the laundry 5 among the drying processes of the drum-type washing dryer 100 is demonstrated.

  When the dehydration process is completed, the program shifts from the dehydration process to the drying process. Even when the program shifts to the drying process, the control unit 90 rotates the rotating drum 3 by driving the motor 4. In order to heat the air supplied to the drying chamber 32, the control unit 90 drives the driving unit 15 of the compressor 7 to increase the pressure of the refrigerant and increase the temperature. The control unit 90 rotates the rotating unit 11 a of the blower 11 so that air heated by exchanging heat with the refrigerant is supplied to the drying chamber 32.

  As described above, as the first control, the control unit 90 starts the operation of the compressor 7 and the operation of the blower 11 in the washing process, and rotates the blower 11 at a rotation speed lower than the rotation speed in the drying process. The drive unit 15 of the compressor 7 is rotated at a rotational speed lower than the rotational speed in the drying process while rotating the section 11a.

  The rotation speed Rb shown in FIG. 3 is the rotation speed of the drive unit 15 or the rotation speed of the rotation unit 11a before the transition from the washing process to the drying process. On the other hand, the rotation speed Ra shown in FIG. 3 is the rotation speed of the drive unit 15 or the rotation speed of the rotation unit 11a in the drying process.

  The rotational speed Ra of the drive unit 15 in the drying process is, for example, 5000 rpm. Further, the rotational speed Ra of the rotating part 11a in the drying process is, for example, 4600 rpm. On the other hand, the rotational speed Rb of the drive unit 15 before shifting from the washing process to the drying process is, for example, 4000 rpm. The rotational speed Rb of the rotating part 11a before shifting from the washing process to the drying process is, for example, 1400 rpm. These rotational speeds Ra and Rb are set in advance in a program for the drying process and a program before the transition from the washing process to the drying process, respectively.

  In the drying process, the driving unit 15 rotates at 5000 rpm and the rotating unit 11a rotates at 4600 rpm, so that the air passing through the condenser 8 inside the heat pump device 13 is heated and then heated. The air (drying air) is supplied to the drying chamber 32. The drying air flows through the duct 18 as indicated by the white arrow shown in FIG. The white arrows schematically indicate the direction in which the airflow flows, and do not indicate the speed or scale of the airflow.

  The air flowing into the drying chamber 32 by the air flow generated by the blower 11 obtains moisture from the laundry 5 stirred in the drying chamber 32 and flows through the exhaust duct 6 toward the heat pump device 13. The air flowing into the heat pump device 13 from the exhaust duct 6 is dehumidified below the dew point when passing through the evaporator 10. The dehumidified air is heated in the condenser 8 to be heated and reduced in humidity, and flows again into the rotary drum 3 as drying air. By repeating such an air flow, the laundry 5 is dried.

  In addition, even when water is stored in the water tank 2 in the process before shifting to the drying process, the drum-type washer / dryer 100 is provided in the water tank 2 because the rotational speed of the rotating unit 11a of the blower 11 is kept low. It is possible to prevent the water in the water tank 2 from flowing into the duct 18 together with the air flowing through the inside.

  In the drum type washing / drying machine 100, as shown in FIG. 4, when the rotation of the drive unit 15 is stopped in the stroke before the drying stroke, the time T from the time when the rotation of the drive unit 15 is stopped is stopped. Until the time elapses, the rotation of the drive unit 15 is stopped. As described above, when the operation of the compressor 7 (see FIG. 2) is stopped in the stroke before the drying stroke, the control unit 90 (see FIG. 2) takes time from the time when the operation of the compressor 7 is stopped. When T elapses, the operation of the compressor 7 is resumed. Information of the time T as a threshold for restarting rotation is stored in the storage unit 94 (see FIG. 2). The time T is measured by a timer 92 (see FIG. 2).

  Note that the control unit 90 can execute any one of the following second control and third control separately from the above-described first control. The control unit 90 executes any one of the first control, the second control, and the third control.

  In the second control, the controller 90 starts the operation of the compressor 7 and the operation of the blower 11 in the washing process as the process before the drying process, and the rotational speed is lower than the rotational speed in the drying process. In this control, the control unit 90 rotates the rotating unit 11a of the blower 11. In the third control, at least the operation of the compressor 7 (that is, the operation of the compressor 7 and the operation of the blower 11 or the operation of the compressor 7 alone) is controlled in the washing process as the process before the drying process. This is a control that the controller 90 starts and the controller 90 rotates the drive unit 15 of the compressor 7 at a rotational speed lower than the rotational speed in the drying process.

  Numerical examples of the rotation speed Rb of the drive unit 15 or the rotation unit 11a in the second control and the third control are the same as in the first control. The rotational speed Rb of the drive unit 15 before shifting to the drying process is, for example, 4000 rpm. The rotational speed Rb of the rotating part 11a before shifting to the drying process is, for example, 1400 rpm.

  The control unit 90 may start any one of the first control, the second control, and the third control from the rinsing process. Numerical examples of the rotation speed Rb of the drive unit 15 or the rotation unit 11a in the first control, the second control, and the third control that are started from the rinsing process are the same as the examples that are started from the washing process.

  Further, the control unit 90, according to the capacity of the laundry 5 detected by the detection unit 96, the rotation speed of the drive unit 15 of the compressor 7 and the rotation speed of the rotation unit 11a of the blower 11 in the first control, The rotational speed of the rotating part 11a of the blower 11 in the second control and the rotational speed of the drive part 15 of the compressor 7 in the third control are changed.

  Table 1 shows an example of the number of rotations of the drive unit 15 of the compressor 7 or the number of rotations of the rotation unit 11a of the blower 11 (both see FIG. 1) in each process classified according to the capacity of the laundry 5 (see FIG. 1). It is a table | surface which shows.

  The rotational speeds Rb1, Rb2, and Rb3 shown in Table 1 are the rotational speeds of the drive unit 15 and the rotational speeds of the rotating unit 11a in the process before shifting to the drying process set according to the capacity of the laundry 5, respectively. . The rotational speed Rb1 of the drive unit 15 is set so that the drive unit 15 rotates at, for example, 4000 rpm when the capacity is 4 kg or more and less than 6 kg. The rotation speed Rb2 of the drive unit 15 is set so that the drive unit 15 rotates at, for example, 3500 rpm when the capacity is 2 kg or more and less than 4 kg. The rotational speed Rb3 of the drive unit 15 is set so that the drive unit 15 rotates at, for example, 3000 rpm when the capacity is less than 2 kg.

  Further, the rotational speed Rb1 of the rotating part 11a is set so that the rotating part 11a rotates at, for example, 1400 rpm when the capacity is 4 kg or more and less than 6 kg. The rotational speed Rb2 of the rotating part 11a is set so that the rotating part 11a rotates at, for example, 1300 rpm when the capacity is 2 kg or more and less than 4 kg. The rotational speed Rb3 of the drive unit 15 is set so that the rotating unit 11a rotates at, for example, 1200 rpm when the capacity is less than 2 kg.

  On the other hand, the rotation speed Ra of the drive unit 15 and the rotation speed Ra of the rotation unit 11a in the drying process are set uniformly without changing according to the capacity. As described above, the rotational speed Ra of the driving unit 15 and the rotational speed Ra of the rotating unit 11a in the drying process are 5000 rpm and 4600 rpm, respectively.

  When the third control is executed, the rotating part 11a is stopped in the process before the drying process (that is, the rotational speeds Rb1, Rb2, Rb3 of the rotating part 11a are substantially zero (zero). ) Is preferred. When the third control is executed, the rotational speeds Rb1, Rb2, and Rb3 of the rotating part 11a in the process before the drying process may be substantially the same as the rotational speed Ra of the rotating part 11a in the drying process. . When the second control is executed, the rotational speeds Rb1, Rb2, and Rb3 of the driving unit 15 in the process before the drying process may be substantially the same as the rotational speed Ra of the driving unit 15 in the drying process. preferable.

  Or the control part 90 is the rotation part of the rotation part 11a of the rotation part 11a of the drive part 15 of the compressor 7 and the air blower 11 in 1st control, and the rotation part of the air blower 11 in 2nd control according to a driving | running course. The rotational speed of 11a and the rotational speed of the drive part 15 of the compressor 7 in 3rd control are changed.

  Table 2 is a table showing an example of the number of rotations of the drive unit 15 of the compressor 7 or the number of rotations of the rotation unit 11a of the blower 11 in each stroke classified by the operation course of the drum type washing and drying machine 100 (see FIG. 1). It is.

  The rotational speeds Rb4 and Rb5 shown in Table 2 are the rotational speed of the drive unit 15 or the rotational speed of the rotating unit 11a in the process before the transition to the drying process set in accordance with the operation course. The rotational speed Rb4 of the drive unit 15 is set so that the drive unit 15 rotates at, for example, 4000 rpm when the standard course is selected. The rotational speed Rb5 of the drive unit 15 is set so that the drive unit 15 rotates at, for example, 4200 rpm when the speed course (course for time reduction) is selected.

  Further, the rotation speed Rb4 of the drive unit 15 is set so that the rotation unit 11a rotates at, for example, 1300 rpm when the standard course is selected. The rotational speed Rb5 of the rotating part 11a is set so that the rotating part 11a rotates at, for example, 1400 rpm when the speed course (time shortening course) is selected.

  On the other hand, the rotation speed Ra of the drive unit 15 and the rotation speed Ra of the rotation unit 11a in the drying process are set uniformly without changing according to the operation course.

  When the third control is executed, the rotating part 11a is stopped in the process before the drying process (that is, the rotational speeds Rb4 and Rb5 of the rotating part 11a are substantially zero (zero)). Is preferred). When the third control is executed, the rotational speeds Rb4 and Rb5 of the rotating part 11a in the process before the drying process may be substantially the same as the rotational speed Ra of the rotating part 11a in the drying process. When the second control is executed, it is preferable that the rotational speeds Rb4 and Rb5 of the drive unit 15 in the process before the drying process are substantially the same as the rotational speed Ra of the drive unit 15 in the drying process.

  As described above, the drum type washing and drying machine 100 includes the heat pump device 13, the drying chamber 32, the blower 11, and the control unit 90. The heat pump device 13 includes a compressor 7. The compressor 7 has a drive unit 15. The drying chamber 32 stores the laundry 5 as an object to be dried. The drying chamber 32 is supplied with air heated in the heat pump device 13. The blower 11 has a rotating part 11a. The blower 11 sends the air heated in the heat pump device 13 to the drying chamber 32. The control unit 90 controls the heat pump device 13 and the rotating unit 11 a of the blower 11. In addition, the control unit 90 executes any one of the first control, the second control, and the third control.

  In the first control, the control unit 90 starts the operation of the compressor 7 and the operation of the blower 11 in the stroke before the drying stroke, and the blower 11 is operated at the rotation speed Rb lower than the rotation speed Ra in the drying stroke. In this control, the control unit 90 rotates the rotating unit 11a, and the driving unit 15 of the compressor 7 is rotated at a rotation speed Rb lower than the rotation speed Ra in the drying process.

  In the second control, the control unit 90 starts the operation of the compressor 7 and the operation of the blower 11 in the stroke before the drying stroke, and the blower at the rotation speed Rb lower than the rotation speed Ra in the drying stroke. 11 is a control in which the control unit 90 rotates the 11 rotation units 11a.

  In the third control, the controller 90 starts at least the operation of the compressor 7 in the stroke before the drying stroke, and the driving portion of the compressor 7 at the rotation speed Rb lower than the rotation speed Ra in the drying stroke. 15 is a control in which the controller 90 rotates.

  In the drum-type washing / drying machine 100, the refrigerant is pre-warmed by starting the operation of the compressor 7 and the operation of the blower 11, or at least the operation of the compressor 7 in the process before the drying process. Therefore, the air flow path such as between the heat pump device 13 and the drying chamber can be preheated from the stroke before the drying stroke. Therefore, the temperature of the drying air can be increased quickly from the start of the drying process. In addition, any one of the first control, the second control, and the third control, the output of which is suppressed compared to the drying process, is executed from the process before the drying process, It is possible to suppress the power consumption in the process before the drying process.

  As described above, in the drum type washing and drying machine 100, the temperature of the drying air can be raised quickly, and the power consumption in the process before shifting to the drying process can be suppressed.

  The process of the drum type washing and drying machine 100 includes a washing process, a rinsing process, and a dehydrating process in order as a process before the drying process. The control unit 90 starts any one of the first control, the second control, and the third control from the washing process.

  According to this configuration, preheating of the refrigerant is started from the washing process. Thus, by warming the refrigerant over a relatively long time, the air flow path between the heat pump device 13 and the drying chamber 32 can be sufficiently warmed.

  The process of the drum type washing and drying machine 100 includes a washing process, a rinsing process, and a dehydrating process in order as a process before the drying process. The control unit 90 starts any one of the first control, the second control, and the third control from the rinsing process.

  According to this configuration, the preheating of the refrigerant is started from the rinsing process. Thus, the amount of power consumption can be further suppressed by warming the refrigerant from a process relatively close to the drying process. Moreover, it can suppress that the heat quantity once added to the heat pump apparatus 13, the duct 18, etc. is discharge | released by the start time of a drying process. Therefore, power consumption can be further suppressed.

  In the drum type washing and drying machine 100, the control unit 90, when stopping the operation of the compressor 7 in the stroke before the drying stroke, when the time T elapses from the time when the operation of the compressor 7 is stopped. Then, the operation of the compressor 7 is resumed.

  According to this configuration, it is possible to equalize the pressure of the refrigerant in the heat exchanger among the refrigerant used in the heat pump device 13.

  In the drum type laundry dryer 100, the control unit 90 includes a detection unit 96 that detects the capacity of the laundry 5 accommodated in the drying chamber 32. Further, the control unit 90 includes the rotation speeds Rb1, Rb2, and Rb3 of the drive unit 15 of the compressor 7 in the first control and the rotation speeds Rb1, Rb2, and Rb3 of the rotation unit 11a of the blower 11, and the blower in the second control. The capacity of the laundry 5 detected by the detecting unit 96 is the rotational speeds Rb1, Rb2, Rb3 of the 11 rotating parts 11a and the rotational speeds Rb1, Rb2, Rb3 of the driving part 15 of the compressor 7 in the third control. It changes according to.

  According to this structure, according to the capacity | capacitance of the laundry 5, the heat pump apparatus 13, the duct 18, etc. can be warmed efficiently.

  The drum type washing and drying machine 100 is set with a plurality of operation courses. The control unit 90 includes the rotation speeds Rb4 and Rb5 of the drive unit 15 of the compressor 7 in the first control, the rotation speeds Rb4 and Rb5 of the rotation unit 11a of the blower 11, and the rotation unit 11a of the blower 11 in the second control. The rotation speeds Rb4 and Rb5 and the rotation speeds Rb4 and Rb5 of the drive unit 15 of the compressor 7 in the third control are changed according to the operation course.

  According to this configuration, the heat pump device 13 and the duct 18 can be efficiently warmed according to the operation course.

  Note that the control unit 90 is connected to a commercial power supply via a power supply circuit (not shown). Further, an inverter circuit (not shown) is provided between the control unit 90 and each electric member, such as between the control unit 90 and the compressor 7 and between the control unit 90 and the blower 11. . The control unit 90 controls the circuit configuration so as to modulate the current, voltage, or any one of the pulse widths of the circuit, thereby adjusting the rotational speed of the driving unit 15 and the rotational speed of the rotating unit 11a. be able to.

  In addition, the detection part 96 may detect the capacity | capacitance of the laundry 5 based on the information of the capacity | capacitance of the laundry 5 input via the operation part (not shown), for example. Note that the drum-type washing / drying machine 100 may include a weight sensor that detects or measures the weight of the laundry 5 accommodated in the rotary drum 3.

  In addition, the position where the control part 90 is arrange | positioned in the drum type washing-drying machine 100 is not specifically limited. The position of the control unit 90 shown in FIG. 1 is schematically shown. Moreover, the control part 90 should just be comprised so that a desired function can be show | played as mentioned above.

  The embodiment disclosed above should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above embodiments but by the scope of claims, and includes all modifications and variations within the meaning and scope equivalent to the scope of claims.

2: water tank, 3: rotating drum, 5: laundry, 7: compressor, 8: condenser, 9: expansion section, 10: evaporation section, 11: blower, 11a: rotation section, 13: heat pump device, 15: Drive unit, 32: drying chamber, 59: water level sensor, 90: control unit, 96: detection unit

Claims (6)

A heat pump device including a compressor having a drive unit;
A drying chamber for storing an object to be dried and supplied with air heated in the heat pump device;
A blower having a rotating part and sending air heated in the heat pump device to the drying chamber;
A controller that controls the heat pump device and the rotating unit of the blower;
The control unit starts the operation of the compressor and the operation of the blower in a process before the drying process that is a process of drying the object to be dried, and the rotation is always lower than the number of rotations in the drying process. the rotating portion of the blower is rotated by the number, and, of the compressor first and controls the driving unit of the compressor is always at a lower rotational speed than the rotational speed in the drying step is rotated, even without least The washing and drying machine that performs any one of the second control in which the operation is started and the drive unit of the compressor rotates at a rotation speed that is always lower than the rotation speed in the drying process. . The process of the washing and drying machine includes a washing process, a rinsing process, and a dehydrating process in order as a process before the drying process,
Wherein the control unit starts either one of the control of said first control and said second control city from the washing step, washing and drying machine according to claim 1. The process of the washing and drying machine includes a washing process, a rinsing process, and a dehydrating process in order as a process before the drying process,
Wherein the control unit starts either one of the control of said first control and said second control city from the rinsing operation, the washing and drying machine according to claim 1.   In a case where the operation of the compressor is stopped in a process before the drying process, the control unit operates the compressor when a predetermined time elapses from the time when the operation of the compressor is stopped. The washing / drying machine according to any one of claims 1 to 3, wherein the operation is resumed. The control unit has a capacity detection unit that detects a capacity of an object to be dried housed in the drying chamber,
The control unit, according to the capacity of the object to be dried detected by the capacity detection unit, the number of rotations of the drive unit of the compressor and the number of rotations of the rotation unit of the blower in the first control , varying the rotational speed of the driving part of the compressor in the prior SL second control,
The washing / drying machine according to any one of claims 1 to 4. In the washing and drying machine, a plurality of driving courses are set,
Wherein, in response to said operation course, the compressor in the the rotational speed of the rotary part of the rotational speed and the blower of the driving of the compressor, before Symbol second control in the first control The washing / drying machine according to any one of claims 1 to 4, wherein the rotational speed of the drive unit is changed.

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