JP5957259B2 - Washing machine - Google Patents

Description

  The embodiment relates to a vertical washing machine in which clothes in a rotating tub are stirred with a pulsator.

  Some vertical washing machines have a drying mechanism. This drying mechanism dries clothes in the rotating tub by sending dry air into the rotating tub, and after the dehydration process is stopped, it is put into an operation state together with the washing motor. The washing motor rotates the rotating tub, and after the dehydrating process is stopped, a drying process is performed in which the drying tub is sent into the rotating tub while the rotating tub is rotating.

JP-A-11-70288 JP-A-11-276761

  In the case of the conventional washing machine, the stirring process is started after the dehydration process is stopped, and the drying process is started after the stirring process is stopped. This stirring process is to stir the clothes in the rotating tank by rotating the pulsator in a stationary state of the rotating tank, and the uneven distribution of clothes in the rotating tank caused by the dehydration process is a stirring process. The drying process is performed in a state where the uneven distribution of clothes is improved. In the case of this conventional washing machine, it takes a long time until the drying process is started after the dehydration process is stopped.

  The washing machine of the embodiment includes an outer box installed on the floor, a water tank provided in the outer box and having an opening formed at the top thereof, and receiving water, and a vertical axis provided in the water tank. A rotary tub that is driven to rotate around a substantially vertical axis and into which clothing is put, a pulsator that is provided in the rotary tub and stirs the clothing in the rotary tub, and the rotation provided in the water tub A washing motor that rotationally drives each of the tub and the pulsator, a clutch mechanism that switches a mechanical connection state of the rotating tub to the washing motor between a dehydrating mode and a washing mode; and for drying clothes in the rotating tub A fan for sending the drying air, a fan motor for rotationally driving the fan, and an electric for detecting the amount of horizontal shaking based on the position of the water tub when the washing motor is stopped A sensor that outputs a signal and rotating the washing motor in a dewatering mode of the clutch mechanism to release moisture from the clothes in the rotating tub by centrifugal force, and driving the washing motor at a constant speed Dehydrating means for performing a dehydrating process including processing, and detecting an electric signal from the sensor in a state where the washing motor is operated at the constant speed during the dehydrating process, and an electric signal from the sensor When detected, a shaking amount detection means for detecting a shaking amount in the horizontal direction of the aquarium according to the detection result of the electrical signal, and when the shaking amount of the aquarium is detected, the detection result of the shaking amount is determined as stirring. The agitation determination means for determining whether or not the value is larger than the value, and the washing motor and the fan motor in the dewatering mode of the clutch mechanism are put in an operating state to perform the rotation. A drying processing means for performing a drying process for sending a drying air into the tank, and a stirring process for performing a stirring process for stirring the clothes in the rotating tank with the pulsator by rotationally driving the washing motor in the washing mode of the clutch mechanism. And the stirring process means starts the stirring process after the dehydration process is stopped when it is determined that the detection result of the shaking amount is larger than the stirring determination value. When it is determined that the detection result is not larger than the stirring determination value, the stirring process is not started after the dehydration process is stopped, and the drying processing unit has the detection result of the shaking amount The drying process is started after the stirring process is stopped when it is determined that it is larger than the stirring determination value, and the detection result of the amount of shaking is larger than the stirring determination value. In the case where it is determined that the dehydration process is not performed, the drying process is started after the dehydration process is stopped.

The figure which shows Example 1 (The figure which shows the internal structure of an outer case) Diagram showing electrical configuration Diagram showing standard course processing of control circuit The figure which shows the final dehydration processing of the control circuit Diagram showing control circuit loosening process Diagram showing the drying process of the control circuit The figure which shows Example 2 (The figure which shows the standard course process of a control circuit) Diagram showing control circuit loosening process Diagram showing the drying process of the control circuit The figure which shows Example 3 (The figure which shows the bath water course process of a control circuit) Diagram showing control circuit loosening process The figure which shows the temperature confirmation processing inside the tank of the control circuit The figure which shows Example 4 (The figure which shows the temperature confirmation process in the tank of a control circuit)

  The outer box 1 in FIG. 1 is installed on the floor. The outer box 1 has a vertically long box shape with an open top surface, and includes a front plate, a rear plate, a left side plate, a right side plate, and a bottom plate. A top cover 2 is fixed to the upper end portion of the outer box 1. The top cover 2 has a cylindrical entrance / exit 3, and an outer lid 4 is attached to the top cover 2. The outer lid 4 can be operated by the user between a closed state and an open state, and the entrance / exit 3 of the top cover 2 is closed when the outer lid 4 is closed and the outer lid 4 is opened. Released.

  As shown in FIG. 1, a cylindrical water tank 5 oriented in the vertical direction is accommodated in the outer box 1. The water tank 5 receives water for washing clothes, and has a lower surface closed and an upper surface opened. The water tank 5 has an opening at the top, and a plurality of plates 6 are fixed to the lower end of the water tank 5. Each of the plurality of plates 6 protrudes in the radial direction from the outer peripheral surface of the water tank 5 and is arranged at equal intervals in the circumferential direction. A rod 7 is inserted into each of the plurality of plates 6. Each of the plurality of bars 7 has a linear shape directed in the vertical direction, and is linearly movable in the vertical direction with respect to the plate 6.

  As shown in FIG. 1, a spring receiver 8 is fixed to each lower end surface of the plurality of bars 7. Each of the plurality of spring receivers 8 protrudes in the radial direction from the outer peripheral surface of the rod 7, and the compression coil spring 9 is positioned between the plate 6 and the spring receiver 8 on the outer peripheral portion of each of the plurality of rods 7. Has been inserted. A universal joint 10 is connected to the upper ends of the plurality of bars 7. Each of the plurality of universal joints 10 is fixed to the outer box 1, and the water tank 5 is allowed to swing with respect to the outer box 1 by operating each of the plurality of universal joints 10. Each of the compression coil springs 9 is expanded and contracted so that the outer casing 1 is damped in the vertical direction.

  As shown in FIG. 1, a washing motor 11 is fixed to the lower surface of the water tank 5. The washing motor 11 is composed of a DC brushless motor capable of speed control, and has a vertical rotating shaft oriented in the vertical direction. A stirring shaft 12 is fixed to the rotating shaft of the washing motor 11 so as to be located in the water tank 5. The stirring shaft 12 has a cylindrical shape that is concentric with the rotation shaft of the washing motor 11, and rotates integrally with the rotation shaft of the washing motor 11 when the washing motor 11 is operated. A pulsator 13 is fixed to the stirring shaft 12. The pulsator 13 is housed in the water tank 5 and rotates integrally with the stirring shaft 12 when the washing motor 11 is operated.

  As shown in FIG. 1, a tank shaft 14 is inserted into the outer peripheral surface of the stirring shaft 12. The tank shaft 14 has a cylindrical shape concentric with the stirring shaft 12, and a rotating tank 15 is fixed to the tank shaft 14. The rotating tank 15 has a cylindrical shape concentric with the water tank 5, and has a lower surface closed and an upper surface opened. The rotating tank 15 is housed in the water tank 5, and the pulsator 13 is disposed at the bottom of the rotating tank 15. The rotating tub 15 is driven to rotate about the vertical axis around the rotation axis of the washing motor 11 when the washing motor 11 is in operation. The inner diameter of the rotating tank 15 is set to be large from the bottom to the top, and the inner peripheral surface of the rotating tank 15 extends outward from the bottom to the top. The rotary tank 15 has a plurality of through holes 16, and water can flow between the inside of the rotary tank 15 and the water tank 5 through each of the plurality of through holes 16.

  As shown in FIG. 1, a tank cover 17 is fixed to the rotating tank 15. The tank cover 17 has a cylindrical doorway 18, and an inner lid 19 is attached to the tank cover 17. The inner lid 19 is movable between a closed state and an opened state, and the entrance / exit 18 of the tank cover 17 is closed when the inner lid 19 is closed and opened when the inner lid 19 is opened. The inner lid 19 can be operated from above by the user with the outer lid 4 open, and the top cover 2 is opened in the rotary tank 15 with the outer lid 4 and the inner lid 19 being opened. Clothes are put in from the entrance 3 through the entrance 18 of the tank cover 17.

  As shown in FIG. 1, a clutch mechanism 20 is accommodated in the washing motor 11. The clutch mechanism 20 uses a clutch motor 21 (see FIG. 2) as a driving source, and the mechanical state is switched between the washing mode and the dewatering mode in accordance with the rotation of the clutch motor 21. The dewatering mode is a state in which the tank shaft 14 is mechanically coupled to the stirring shaft 12. When the washing motor 11 is operated in the dewatering mode of the clutch mechanism 20, the rotating tank 15 rotates with respect to the water tank 5 together with the pulsator 13. To do. The washing mode is a state in which the tank shaft 14 is mechanically disconnected from the stirring shaft 12, and when the washing motor 11 is operated in the washing mode of the clutch mechanism 20, the pulsator 13 is placed in the water tank 5 while the rotary tank 15 is stationary. Rotate against.

  A water injection valve 22 is fixed in the top cover 2 as shown in FIG. The water injection valve 22 has an inlet and an outlet, and the inlet of the water injection valve 22 is connected to a water tap through a hose. The water injection valve 22 is driven by a water injection valve motor 23 (see FIG. 2). The water injection valve 22 is in a closed state in which tap water cannot pass and an open state in which the water can pass in response to the rotation of the water injection motor 23. Switch between each other. The outlet of the water injection valve 22 is connected to the water tank 5 via a hose. When the water injection valve 22 is open, tap water is injected into the water tank 5 from the tap through the water injection valve 22.

  As shown in FIG. 1, a drain pipe 24 is accommodated in the outer box 1. The drain pipe 24 has an inlet and an outlet. The inlet of the drain pipe 24 is connected to the water tank 5 at the lowest part of the water tank 5, and the outlet of the drain pipe 24 protrudes outside the outer box 1. A drain valve 25 is interposed in the drain pipe 24. The drain valve 25 is switched between a closed state in which water cannot pass and an open state in which water can pass, and the water injection valve 22 is opened in the water tank 5 with the drain valve 25 closed. The tap water is stored, and the tap water in the water tank 5 is discharged to the outside of the outer box 1 through the drain pipe 24 when the drain valve 25 is opened. The drain valve 25 is mechanically connected to the clutch motor 21 of the clutch mechanism 20 and is opened when the clutch mechanism 20 is dehydrated and closed when the clutch mechanism 20 is washed.

  A fan casing 26 is fixed in the top cover 2 as shown in FIG. The fan casing 26 has an inlet 27 and an outlet 28, and the top cover 2 is formed with a through-hole-like air inlet 29 located behind the inlet 27 of the fan casing 26. A fan motor 30 is fixed to the fan casing 26 so as to be located outside the fan casing 26. The fan motor 30 has a rotating shaft protruding into the fan casing 26, and a fan 31 is fixed to the rotating shaft of the fan motor 30. The fan 31 is housed in the fan casing 26. When the fan motor 30 is operated, the fan 31 rotates so that the air outside the outer box 1 passes through the inlet 27 from the inlet 29 through the inlet 27. The air sucked into the fan 26 and sucked into the fan casing 26 is discharged from the outlet 28.

  A heater case 32 is fixed in the top cover 2 as shown in FIG. The heater case 32 has an inlet and an outlet, and the inlet of the heater case 32 is connected to the outlet 28 of the fan casing 26. In the heater case 32, air discharged from the outlet 28 of the fan casing 26 enters through the inlet. The upper end of the hose 33 is connected to the outlet of the heater case 32, and the lower end of the hose 33 is the exhaust port 34. It is connected to the. The exhaust port 34 is formed in the tank cover 17, and the air that has entered the heater case 32 enters the rotary tank 15 through the hose 33 and the exhaust port 34 from the outlet of the heater case 32.

  A heater 35 is fixed in the heater case 32 as shown in FIG. The heater 35 heats the air sent from the fan 31 into the heater case 32 in the heater case 32. In the respective operating states of the fan motor 30 and the heater 35, the heater case 32 and the hose 33 and the exhaust port 34 are heated. The hot air having a temperature higher than that of the outside of the outer box 1 is injected into the rotary tank 15 through each of the above.

  As shown in FIG. 1, a duct 36 is fixed to the water tank 5 outside the water tank 5. The duct 36 is oriented in the vertical direction. An inlet 37 is formed at the lower end of the duct 36, and an outer outlet 38 and an inner outlet 39 are formed at the upper end of the duct 36. The inlet 37 of the duct 36 is connected to the water tank 5, and the wind injected into the rotary tank 15 from the outlet of the heater case 32 escapes to the outside of the rotary tank 15 through each of the plurality of through holes 16. The wind that has escaped to the outside of the rotary tank 15 enters the duct 36 from the inlet 37. Part of the wind that has entered the duct 36 is discharged into the outer box 1 through the outer outlet 38, and the rest is returned into the rotary tank 15 through the inner outlet 39.

  The control circuit 40 in FIG. 2 has a CPU, a ROM, and a RAM. This control circuit 40 compares the dehydration processing means, shaking amount detection means, stirring determination means, drying processing means, stirring processing means, temperature drying determination means, weight detection means, weight determination means, tank temperature detection means, and tank temperature determination means. This corresponds to each of the means, and a control program and control data are recorded in advance in the ROM of the control circuit 40. Each of the start switch 41 and the driving course switch 42 is fixed to the top cover 2 and can be operated by the user. Each of the start switch 41 and the driving course switch 42 is a self-returning push switch, and the CPU of the control circuit 40 detects the electrical states of the start switch 41 and the driving course switch 42. The CPU of the control circuit 40 selects one of a plurality of driving courses recorded in advance in the ROM in accordance with the detection result of the electric state of the driving course switch 42. The selection result of the driving course is started according to the detection result of the state.

  The water level sensor 43 in FIG. 2 outputs an electrical water level signal having a magnitude corresponding to the height of the water level in the water tank 5, and the CPU of the control circuit 40 determines the level of the water level signal from the water level sensor 43. Accordingly, the height of the water level in the water tank 5 is detected. The temperature sensor 44 is fixed in the exhaust port 34 of the tank cover 17. The temperature sensor 44 outputs an electrical temperature signal having a magnitude corresponding to the temperature of the wind injected from the heater case 32 into the rotary tank 15, and the CPU of the control circuit 40 is a temperature sensor. The temperature of the wind injected into the rotary tank 15 is detected according to the magnitude of the temperature signal from 44.

  The motor circuit 45 in FIG. 2 supplies drive power to the washing motor 11, and the speed sensor 46 outputs a unit number of pulse signals each time the rotation shaft of the washing motor 11 rotates by a unit amount. Each of the motor control circuit 47 and the control circuit 40 detects the rotational speed of the washing motor 11 according to the pulse signal from the speed sensor 46, and the motor control circuit 47 responds to the detection result of the rotational speed of the washing motor 11. The motor circuit 45 is electrically controlled to rotate the washing motor 11 at a target speed. The motor control circuit 47 receives a speed command from the control circuit 40, and electrically controls the motor circuit 45 according to the reception result of the speed command, thereby controlling the washing motor 11 according to the speed command. Rotate with.

The acceleration sensor 48 shown in FIG. 2 has an electrical acceleration signal at a level corresponding to the magnitude of the acceleration in the X direction, and an electrical acceleration signal at a level corresponding to the magnitude of the acceleration in the Y direction. It is a capacitance type that outputs an electrical acceleration signal of a level corresponding to the magnitude of the acceleration in the direction, and is fixed to the water tank 5. In the acceleration sensor 48, the X direction is the left-right direction when viewed from the user, the Y direction is the front-rear direction when viewed from the user, and the Z direction is parallel to the respective axis lines of the water tank 5 and the rotating tank 15. The CPU of the control circuit 40 detects the acceleration signal in the X direction from the acceleration sensor 48, and adds {1 / (detection result of the rotation speed of the washing motor 11) ^{2 to} the detection result of the acceleration signal. } To detect the magnitude of the amount of shaking R in the X direction relative to the stationary position of the aquarium 5. The stationary position of the water tank 5 is the position of the water tank 5 when the operation of the washing motor 11 is stopped, and the acceleration sensor 48 corresponds to a sensor.

  The unbalance switch 49 in FIG. 2 is fixed to the outer box 1 and has a lever. This lever is movable between the off position and the on position, and when the amount of shaking of the water tank 5 in the X direction has not reached a predetermined limit value, the outer peripheral surface of the water tank 5 is the lever. By moving away from the position, it stops at the off position. This lever contacts the outer peripheral surface of the water tank 5 when the amount of shaking of the water tank 5 in the X direction reaches a limit value. When the outer peripheral surface of the water tank 5 contacts the lever, the lever It is moved from the off position to the on position by being pushed on the outer peripheral surface. The unbalance switch 49 is electrically turned off when the lever is turned off, and is electrically turned on when the lever is turned on. The CPU of the control circuit 40 detects the electrical state of the unbalance switch 49. To do.

  The motor circuit 50 in FIG. 2 supplies driving power to the clutch motor 21, and the control circuit 40 electrically controls the motor circuit 50 to rotate the clutch motor 21 and rotate the clutch motor 21. Thus, the clutch mechanism 20 is switched between the washing mode and the dewatering mode, and the drain valve 25 is switched between the closed state and the opened state in conjunction with the clutch mechanism 20. The motor circuit 51 supplies drive power to the water injection valve motor 23, and the control circuit 40 electrically controls the motor circuit 51 to rotate the water injection valve motor 23 and rotate the water injection valve motor 23. Thus, the water injection valve 22 is switched between the closed state and the water supply state.

  The motor circuit 52 in FIG. 2 supplies driving power to the fan motor 30, and the control circuit 40 rotates the fan motor 30 by electrically controlling the motor circuit 52. The heater circuit 53 supplies drive power to the heater 35, and the control circuit 40 electrically controls the heater circuit 53 to turn the heater 35 on and off. The LCD circuit 54 supplies drive power to the display 55, and the control circuit 40 controls the display content of the display 55 by electrically controlling the LCD circuit 54. The display 55 is fixed to the top cover 2 and is arranged so that the user can visually recognize the display content of the display 55.

The CPU of the control circuit 40 can select a standard course from a plurality of driving courses by determining that the driving course switch 42 has been operated, and the start switch 41 is operated in the selected state of the standard course. If it is determined that the standard course processing is started, the standard course processing is started. FIG. 3 shows the standard course process. When the CPU starts the standard course process, the weight measurement process in step S1, the washing process in step S2, the dehydration process in step S3, the rinse process in step S4, and the final dehydration in step S5 are performed. It moves to each of the processes in order.
[1] Weight Measurement Processing The weight measurement processing in step S1 in FIG. 3 is performed in the washing mode of the clutch mechanism 20, and each of the water injection valve 22 and the drain valve 25 is closed. In this weight measurement process, the CPU of the control circuit 40 transmits a measurement start command to the motor control circuit 47, and starts measuring time when the measurement start command is transmitted. When it is determined that the measurement result of this time has reached a certain value, the rotational speed of the washing motor 11 is detected according to the speed signal from the speed sensor 46 and a measurement stop command is transmitted to the motor control circuit 47. When the motor control circuit 47 receives the measurement start command, the motor control circuit 47 starts the rotation operation of the washing motor 11 with a predetermined weight measurement pattern. When the measurement stop command is received, the motor control circuit 47 sets the washing motor 11 to the rotation stop state. To do.

When the CPU of the control circuit 40 transmits a measurement stop command, it calculates the weight W of the clothing in the rotating tub 15 according to the detection result of the rotation speed. The weight W is calculated to be heavy according to the detection result of the rotation speed being slow. When the CPU calculates the weight W, the target water level, the washing time, and the dewatering time are determined according to the calculation result of the weight W. Set the rinse time, unwind time, and dry time. The target water level is set higher as the calculation result of the weight W becomes heavier, and the calculation result of the weight W becomes heavier for each of the washing time, the dehydration time, the rinsing time, the loosening time, and the drying time. The length is set accordingly.
[2] Washing Process When the CPU of the control circuit 40 shifts to the washing process in step S2, tap water as a result of setting the target water level is stored in the water tank 5. This tap water is stored in the water tank 5 by opening the water injection valve 22 in the washing mode of the clutch mechanism 20, and the CPU has reached the setting result of the target water level from the water level signal from the water level sensor 43. When it is determined that the water injection valve 22 is closed, tap water as a result of setting the target water level is stored in the water tank 5.

When the CPU of the control circuit 40 stores the tap water as a result of setting the target water level in the water tank 5, it starts measuring time after transmitting a washing start command to the motor control circuit 47. When it is determined that the measurement result of this time has reached the setting result of the washing time, a washing stop command is transmitted to the motor control circuit 47, and the tap water is discharged from the water tank 5 by setting the clutch mechanism 20 to the dewatering mode. To do. The motor control circuit 47 rotates the pulsator 13 in the washing pattern by starting the operation of the washing motor 11 in the washing pattern when the washing start command is received, and rotates the washing motor 11 in the case of receiving the washing stop command. Set to the stop state. That is, in the washing process, the pulsator 13 is rotated in a washing pattern to wash the clothes in the rotary tank 15 with tap water containing a detergent while stirring the clothes.
[3] Dehydration process When the CPU of the control circuit 40 proceeds to the dehydration process of step S3, the CPU starts the time measurement after transmitting the dehydration start command to the motor control circuit 47, and the time measurement result becomes the dehydration time setting result. When it is determined that it has arrived, a dehydration stop command is transmitted to the motor control circuit 47. This dewatering process is performed in the dewatering mode of the clutch mechanism 20, and the motor control circuit 47 starts the operation of the washing motor 11 in the dewatering pattern when the dewatering start command is received, thereby rotating the rotating tub 15 together with the pulsator 13. When the washing stop command is received, the washing motor 11 is stopped. In this dewatering pattern, the washing motor 11 is accelerated from the stationary state to the dewatering speed and then operated at a constant speed at the dewatering speed. This dehydration speed is set to a speed at which moisture is released from the clothes in the rotating tank 15 by centrifugal force, and the rotating tank 15 rotates with the clothes attached to the inner peripheral surface of the rotating tank 15. .
[4] Rinsing Process When the CPU of the control circuit 40 proceeds to the rinsing process of step S4, the tap water as a result of setting the target water level is stored in the water tank 5. Then, after the rinse start command is transmitted to the motor control circuit 47, time measurement is started, and when it is determined that the time measurement result has reached the rinse time setting result, a rinse stop command is transmitted to the motor control circuit 47. After that, the tap water is discharged from the water tank 5 by setting the clutch mechanism 20 to the dewatering mode. The motor control circuit 47 starts the operation of the washing motor 11 in the rinsing pattern when the rinsing start command is received, and puts the washing motor 11 in the rotation stopped state when the rinsing stop command is received. That is, in the rinsing process, the pulsator 13 is rotated in a rinsing pattern to rinse the clothes in the rotating tank 15 with tap water that does not contain a detergent component while stirring the clothes.
[5] Final Dehydration Process FIG. 4 shows the final dehydration process in step S5. The CPU of the control circuit 40 starts the operation of the washing motor 11 in the dehydration pattern by transmitting a dehydration start command to the motor control circuit 47 in step S21. Command that. In step S22, (0) is set as the value of the timer T in the RAM. In step S23, it is determined whether or not the addition result of the value of the timer T has reached the vibration measurement time. The value of the timer T is such that the CPU starts timer interrupt processing every time a predetermined time elapses, and adds a constant value every time the timer interrupt processing is started. The CPU adds the value of the timer T value in step S23. If it is determined that the vibration measurement time has not been reached, the process proceeds to step S24.

  When the CPU proceeds to step S24, the CPU determines whether or not the unbalance switch 49 is on. If it is determined that the unbalance switch 49 is in the OFF state, the process returns to step S23. If it is determined that the unbalance switch 49 is in the ON state, the process proceeds to step S30. Here, by sending a dehydration stop command to the motor control circuit 47, it is instructed to put the washing motor 11 in a rotation stop state, and the final dehydration process is completed.

  If the CPU determines that the addition result of the value of the timer T has reached the vibration measurement time in step S23, the CPU detects an acceleration signal in the X direction from the acceleration sensor 48 in step S25. This vibration measurement time is set to the time after the constant speed operation at the dewatering speed of the washing motor 11 is started, and the CPU determines the magnitude of the acceleration in the X direction of the water tank 5 by the washing motor 11. It detects in the state of constant speed operation.

When the CPU detects the X direction acceleration signal from the acceleration sensor 48 in step S25, the CPU detects the rotation speed of the washing motor 11 in accordance with the speed signal from the speed sensor 46 in step S26, and calculates the amount of shaking R in step S27. To do. The amount of shaking R is calculated by multiplying the detection result of the acceleration signal by {1 / (detection result of rotational speed) ² }. When the CPU calculates the amount of shaking R in step S27, the step S28 is performed. Then, it is determined whether or not the addition result of the value of the timer T has reached the dehydration time setting result. If it is determined that the addition result of the value of the timer T has reached the dehydration time setting result, a dehydration stop command is transmitted to the motor control circuit 47 in step S30, and the final dehydration process is completed.

  If the CPU determines in step S28 that the addition result of the value of timer T has not reached the dehydration time setting result, it determines in step S29 whether or not the unbalance switch 49 is on. If it is determined that the unbalance switch 49 is in the OFF state, the process returns to step S28. If it is determined that the unbalance switch 49 is in the ON state, the process proceeds to step S30. Here, a dehydration stop command is transmitted to the motor control circuit 47, and the final dehydration process is completed.

  When the CPU finishes the final dehydration process in step S5 of FIG. 3, the CPU compares the calculation result of the weight W with a threshold (2 kg) recorded in advance in the ROM in step S6. This threshold value corresponds to the weight determination value. If the CPU determines in step S6 that the calculation result of the weight W is larger than the threshold value, the process proceeds to step S8, and the calculation result of the weight W is equal to or less than the threshold value. If it is determined that there is, the process proceeds to step S7. Here, the hot air flag in the RAM is set to the on state, and the process proceeds to the drying process in step S13. This hot air flag indicates whether or not the clothes are dried with the heater 35 turned on, and is initially set to the off state when starting the standard course process.

  When the CPU proceeds to step S8, the CPU compares the calculation result of the shaking amount R with the determination value 1 recorded in advance in the ROM. This determination value 1 corresponds to the temperature-drying determination value. When the CPU determines that the calculation result of the shake amount R is larger than the determination value 1 in step S8, the process proceeds to step S10, and the shake amount R. When it is determined that the calculation result is equal to or less than the determination value 1, the process proceeds to step S9. Here, the hot air flag is set to the on state, and the process proceeds to the drying process in step S13.

When the CPU proceeds to step S10, the CPU compares the calculation result of the shaking amount R with the determination value 2. This determination value 2 is recorded in advance in the ROM, and is set larger than the determination value 1. This determination value 2 corresponds to the agitation determination value, and when the CPU determines that the calculation result of the shaking amount R is larger than the determination value 2 in step S10, the process proceeds to the unraveling process in step S12. When it is determined that the calculation result of the amount R is the determination value 2 or less, the process proceeds to step S11. Here, the hot air flag is set to the off state, and the process proceeds to the drying process in step S13.
[6] Unraveling Process FIG. 6 shows the unraveling process in step S12, and the CPU switches the clutch mechanism 20 from the dewatering mode to the washing mode in step S31. In step S32, a loosening start command is transmitted to the motor control circuit 47, and the value of the timer T is set to (0) in step S33. This unraveling start command is for instructing to rotate the washing motor 11 with a predetermined unraveling pattern. This unraveling pattern stirs the clothes in the rotating tank 15 by alternately rotating the pulsator 13 in the forward and reverse directions while the rotating tank 15 is stationary, and stirs the clothes in the rotating tank 15 to In order to improve the distribution bias, the motor control circuit 47 starts the rotation operation of the washing motor 11 in the loosening pattern when receiving the loosening start command. The process of rotating the pulsator 13 in a loosening pattern corresponds to a stirring process.

  When the CPU sets (0) to the value of timer T in step S33, the CPU determines in step S34 whether or not the addition result of the value of timer T has reached the setting result of the loosening time. If it is determined that the addition result of the timer T value has reached the setting result of the loosening time, a loosening stop command is transmitted to the motor control circuit 47 in step S35, and the clutch mechanism 20 is washed in step S36. To dehydration mode. When the motor control circuit 47 receives a loosening stop command, the motor control circuit 47 stops the loosening of the clothes by putting the washing motor 11 in a rotation stop state. That is, the stirring process is started in step S32 and is stopped in step S35.

  When the CPU switches the clutch mechanism 20 to the dehydration mode in step S36, the CPU starts rotation operation in the dehydration pattern of the washing motor 11 by transmitting a dehydration start command to the motor control circuit 47 in step S37. In step S38, (0) is set to the value of timer T, and in step S39, it is determined whether or not the addition result of the value of timer T has reached the vibration measurement time. If it is determined that the addition result of the value of the timer T has reached the vibration measurement time, the acceleration signal in the X direction from the acceleration sensor 48 is detected in step S40, and the speed from the speed sensor 46 is detected in step S41. The rotational speed of the washing motor 11 is detected according to the signal, and the shaking amount R is calculated again according to the detection result of the acceleration signal and the detection result of the rotational speed at step S42.

  When the CPU again calculates the shaking amount R in step S42, the washing motor 11 is stopped in rotation by transmitting a dehydration stop command to the motor control circuit 47 in step S43, and the recalculation result of the shaking amount R is multiplied in step S44. Compare with the judgment value. This crossing-off determination value determines whether or not the uneven distribution of clothes in the rotary tub 15 has been improved to the extent that the unbalance switch 49 is not turned on when the washing motor 11 is rotated at the dehydration speed. The unbalance switch 49 is set to a value that is smaller than the amount of shaking R of the aquarium 5 that is to be switched from the off state to the on state and is larger than the determination value 2. . This round-off determination value is recorded in advance in the ROM, and when the CPU determines that the recalculation result of the shaking amount R is larger than the round-off determination value in step S44, the CPU returns to step S31 to return the clothing. Unwind again.

If the CPU determines in step S44 that the recalculation result of the swing amount R is less than or equal to the multiplication determination value, the CPU compares the recalculation result of the swing amount R with the determination value 1 in step S45. If it is determined that the recalculation result of the fluctuation amount R is equal to or less than the determination value 1, the hot air flag is set to the ON state in step S46, and the recalculation result of the fluctuation amount R is larger than the determination value 1. If it is determined that the warm air flag is turned off in step S47, the process proceeds to the drying process in step S13 in any case.
[7] Drying Process FIG. 6 shows the drying process in step S13, and the CPU determines in step S51 whether the hot air flag is set to the on state. If it is determined that the hot air flag is set to the off state, the process proceeds to step S54. If it is determined that the hot air flag is set to the on state, the process proceeds to step S52. Here, the hot air flag is set to the off state, the heater 35 is set to the operating state in step S53, and the process proceeds to step S54.

  When the CPU proceeds to step S54, the CPU sets the fan motor 30 in an operating state. The fan motor 30 rotates at a constant speed in a certain direction when it is in an operating state. When the hot air flag is set to the off state before the drying process is started, the fan motor 30 is heated. When the dry operation at normal temperature is supplied to the clothes in the rotary tub 15 by being rotated in the operation stop state 35, and the warm air flag is set to the on state before the drying process is started, the fan When the motor 30 is rotated in the operating state of the heater 35, hot air having a higher temperature than the normal temperature is supplied to the clothes in the rotating tub 15 as dry air. The heater 35 is on / off controlled so that the temperature signal from the temperature sensor 44 becomes a constant value, and the temperature of the hot air is controlled to a constant value.

  When the CPU sets the fan motor 30 to the operating state in step S54, the CPU compares the amount of shaking R with the determination value 3 in step S55. This step S55 is “when the calculation result of the weight W is determined to be less than or equal to the threshold value (step S6)” and “when the calculation result of the shaking amount R is determined to be equal to or less than the determination value 1 (step S8)”. And “when the calculation result of the shaking amount R is determined to be less than or equal to the determination value 2 (step S10)”, the calculation result of the shaking amount W in step S17 of the final dehydration process is compared with the determination value 3. In the loosening process, “when the recalculation result of the shake amount R is determined to be less than or equal to the multiplicative determination value (step S44)”, the recalculation result of the shake amount R in step S42 is the determination value 3. To be compared. This determination value 3 is recorded in advance in the ROM, and is set smaller than the determination value 1.

  When the CPU determines that the amount of shaking R is equal to or less than the determination value 3 in step S55, the CPU transmits a speed command 1 to the motor control circuit 47 in step S56. This speed command 1 notifies the motor control circuit 47 of the rotation speed (900 rpm) of the washing motor 11 in the constant speed rotation state, and the rotation speed (900 rpm) is applied to the inner peripheral surface of the clothes in the rotary tank 15. It is set to the speed at which it is attached.

  If the CPU determines that the amount of shaking R is larger than the determination value 3 in step S55, the CPU compares the amount of shaking R in step S55 with the determination value 4 recorded in advance in the ROM in step S57. This determination value 4 is set to be larger than the determination value 3. If the CPU determines in step S57 that the shaking amount R is equal to or less than the determination value 4, then in step S58, the speed command is sent to the motor control circuit 47. 2 is transmitted to notify the rotation speed (800 rpm) of the washing motor 11 in the constant speed rotation state. If it is determined in step S57 that the shaking amount R is larger than the determination value 4, motor control is performed in step S59. The speed command 3 is transmitted to the circuit 47 to notify the rotation speed (700 rpm) in the constant speed rotation state of the washing motor 11. Each of the rotational speed (700 rpm) and the rotational speed (800 rpm) is set to a speed at which the clothes in the rotating tub 15 are rotated with the inner peripheral surface attached.

  When the CPU transmits any one of the speed command 1 to the speed command 3, the CPU transmits a drying start command to the motor control circuit 47 in step S60, and sets the value of the timer T to (0) in step S61. When the motor control circuit 47 receives a drying start command, the motor control circuit 47 starts the rotation operation of the washing motor 11 with a predetermined drying pattern. In this drying pattern, the washing motor 11 is accelerated from the stationary state to the target speed and then operated at a constant speed at the target speed, and the target speed is set in the reception result of the speed command.

  When the CPU sets (0) as the value of timer T in step S61, the CPU compares the result of adding the value of timer T with the result of setting the drying time in step S62. If it is determined that the addition result of the value of timer T has reached the setting result of the drying time, the fan motor 30 is stopped in step S63, the heater 35 is stopped in step S64, and in step S65. A drying stop command is transmitted to the motor control circuit 47, and the drying process is completed. When the motor control circuit 47 receives a drying stop command, the motor control circuit 47 puts the washing motor 11 in a rotation stop state.

According to the said Example 1, there exists the following effect.
When it is determined that the calculation result of the shaking amount R is larger than the determination value 2, the loosening process is started after the final dehydration process is stopped, and the drying process is started after the unraveling process is stopped. When the uneven distribution of clothing in the rotary tank 15 becomes relatively large by performing the above, the drying treatment is performed after the uneven distribution of clothing is improved by the loosening process. Therefore, the rotating tub 15 does not shake greatly with respect to the water tank 5 in response to the washing operation of the washing motor 11 at the target speed corresponding to the speed command in the drying process. This is prevented and the quietness is improved.

  When it was determined that the calculation result of the shaking amount R was not larger than the determination value 2, the final dehydration process was stopped and the unraveling process was not started, and the final dehydration process was stopped and the drying process was started. That is, when the final dehydration process is performed and the uneven distribution of the clothes in the rotary tank 15 is not relatively large, and there is no possibility of the rotary tank 15 coming into contact with the water tank 5 by the drying process, the loosening is performed. Since the drying process is performed without performing the process, the time from when the final dehydration process is stopped until the drying process is started can be safely shortened. In addition, the loosening process does not cause a relatively large distribution of clothes.

  When it is determined that the calculation result of the shaking amount R is not equal to or less than the determination value 1, the heater 35 is stopped in the drying process, so that the distribution of clothes in the rotary tank 15 is biased by the final dehydration process. Is relatively medium or higher, the drying process is performed with the heater 35 stopped. Therefore, since a large force does not act on each of the water tank 5 and the rotating tank 15 when heated by hot air, the water tank 5 and the rotating tank 15 are deformed with a large force, particularly when each of the water tank 5 and the rotating tank 15 is made of synthetic resin. Disappears.

  When it is determined that the calculation result of the shaking amount R is equal to or less than the determination value 1, the heater 35 is brought into an operating state by a drying process. That is, when the final dehydration process is performed, the distribution of clothes in the rotating tub 15 is not relatively moderately biased, and a large force does not act on each of the water tub 5 and the rotating tub 15. Since the drying process is performed in the operation state of the heater 35, the dryness of the clothes in the rotating tank 15 can be safely increased by supplying warm air safely to the clothes in the rotating tank 15 by the drying process.

  When it was determined that the calculation result of the weight W was equal to or less than the threshold value, the drying process was performed in the operating state of the heater 35. That is, in the final dehydration process, warm air is safely supplied to the clothes in the rotating tank 15 in the drying process in a state where a small amount of clothes is put in there is no possibility that the uneven distribution of the clothes in the rotating tank 15 becomes medium or higher. The degree of drying of the clothes in the rotary tank 15 is increased safely.

  When it is determined that the calculation result of the weight W is not less than or equal to the threshold value, the drying process is performed in the operation state of the heater 35 when the calculation result of the shake amount R is determined to be equal to or less than the determination value 1. When it was determined that the calculation result was not equal to or less than the determination value 1, the drying process was performed with the heater 35 stopped. That is, in a state where a non-small amount of clothing is put in the final dehydration process in which the uneven distribution of clothes in the rotating tub 15 may become medium or higher, the heater 35 is set according to the measurement result of the uneven distribution of clothes in the rotating tub 15. Therefore, the hot air is safely supplied to the clothes in the rotating tub 15 by the drying process.

  The standard course process of FIG. 7 is performed by the CPU of the control circuit 40 in place of the standard course process of FIG. 3. If the CPU determines in step S6 that the calculation result of the weight W is less than or equal to the threshold value, step S7 is performed. Then, the process proceeds to step S71. Here, the correction value X1 (40 minutes) is subtracted from the drying time setting result, and the process proceeds to the drying process in step S13.

  If the CPU determines in step 8 that the calculation result of the shaking amount R is equal to or less than the determination value 1, the CPU proceeds to step S72 via step S9. Here, the correction value X1 is subtracted from the setting result of the drying time, and the process proceeds to the drying process in step S13. This correction value X1 is recorded in advance in the ROM, and when the drying process is performed while supplying warm air into the rotating tub 15 without loosening the clothes in the rotating tub 15, the setting result of the drying time is shortened. Is done.

  If the CPU determines that the calculation result of the shaking amount R is equal to or less than the determination value 2 in step 10, the CPU proceeds to step S73 via step S11. Here, the correction value X2 (20 minutes) is subtracted from the drying time setting result, and the process proceeds to the drying process in step S13. This correction value X2 is recorded in advance in the ROM, and when drying processing is performed while supplying normal temperature air to the rotating tub 15 without loosening clothes in the rotating tub 15, drying is performed while supplying warm air. Compared with processing, the setting result of the drying time is shortened by a short time.

  The loosening process of FIG. 8 is performed by the CPU in place of the loosening process of FIG. 5, and when the CPU determines that the recalculation result of the shaking amount R is equal to or less than the determination value 1 in step S45, the process goes to step S74 via step S46. Migrate to Here, the correction value X3 (10 minutes) is subtracted from the setting result of the drying time, and the loosening process ends. This correction value X3 is recorded in advance in the ROM, and when the drying process is performed while warm air is supplied into the rotary tank 15 after loosening the clothes in the rotary tank 15, the setting result of the drying time is subtracted. Is done.

  If the CPU determines in step S45 that the recalculation result of the shaking amount R is larger than the determination value 1, the CPU proceeds to step S75 via step S47. Here, the correction value X4 (30 minutes) is added to the setting result of the drying time, and the loosening process is completed. This correction value X4 is recorded in advance in the ROM, and the drying time setting result is extended when drying is performed while air is supplied into the rotating tub 15 after loosening the clothes in the rotating tub 15. Is done.

  The drying process of FIG. 9 is performed by the CPU of the control circuit 40 in place of the drying process of FIG. 6, and when the CPU determines that the amount of shaking R is less than or equal to the determination value 4 in step S57, the process proceeds to step S58. In step S81, the correction value X5 (10 minutes) recorded in advance in the ROM is added to the correction result of the drying time. If it is determined that the amount of shaking R is larger than the determination value 4, the process proceeds to step S82 via step S59. A correction value X6 (15 minutes) recorded in advance in the ROM is added to the correction result of the drying time.

  When the CPU transmits a drying start command to the motor control circuit 47 in step S60, the drying time is set to the value of the timer T1 in the RAM in step S83. The timer T1 value starts the timer interrupt process every time a predetermined time elapses, and subtracts a constant value every time the timer interrupt process starts. The CPU subtracts the timer T1 value by the timer interrupt process. Every time it is done, the display unit 55 displays the result of subtracting the value of the timer T1, thereby displaying the remaining time until the drying process is completed.

  When the CPU sets the drying time to the value of timer T1 in step S83, the CPU compares the subtraction result of the value of timer T1 with (0) in step S84. If it is determined that the subtraction result of the value of the timer T1 has reached (0), the process proceeds to each of steps S63 to S65, and the washing motor 11, the fan motor 30, and the heater 35 are stopped. The drying process is completed by setting the state.

According to the said Example 2, there exist the following effects.
When the calculation result of the weight W is determined to be less than or equal to the threshold and when the calculation result of the shaking amount R is determined to be the determination value 1 or less, the drying set according to the calculation result of the weight W The time was greatly shortened, and when it was determined that the calculation result of the shaking amount R was equal to or less than the determination value 2, the drying time set according to the calculation result of the weight W was shortened. Therefore, when the drying process is performed in the supply state of hot air and a small amount of shaking of the rotating tank 15, the setting result of the drying time is greatly shortened, and the drying process is performed in the supply state of the normal temperature air and in the rotating tank 15. When it is performed in the state of shaking, the setting result of the drying time is shortened small, so that the clothes are finished to a certain degree of drying in a short time.

  A bath water pump is fixed in the outer box 1. This bath water pump has a pump motor housed in a housing, and an impeller is fixed to a rotation shaft of the pump motor. This housing has an inlet and an outlet. The outlet of the housing is connected to the water tank 5 via a water injection hose, and a water absorption case is connected to the inlet of the housing via a bath water hose. This water absorption case contains a filter inside. When the pump motor is operated with the water absorption case inserted in the bath water of the bathtub, the bath water in the bathtub passes through the bath water hose from the water absorption case. Bath water sucked into the housing and sucked into the housing is injected into the water tank 5 through the water injection hose.

  A tank temperature sensor is fixed to the water tank 5, and the tank temperature sensor is in contact with the outer peripheral surface of the water tank 5. This tank temperature sensor outputs a tank temperature signal at a level corresponding to the temperature of the water in the water tank 5, and the CPU of the control circuit 40 controls the water in the water tank 5 according to the tank temperature signal from the tank temperature sensor. Detect temperature.

  A bath water course is recorded in advance in the ROM of the control circuit 40 as one of the operation courses. This bath water course can be selected from a plurality of driving courses including a standard course by the CPU of the control circuit 40 when the driving course switch 42 is operated. When it is determined that the start switch 41 is operated in the course selection state, the bath water course processing is started.

  FIG. 10 shows a bath water course process. This bath water course process is performed in the water tank 5 by setting the pump motor of the bath water pump to an operating state instead of opening the water injection valve 22 in each of the washing process in step S2 and the rinsing process in step S4. The bath water is stored as a result of setting the water level, and when the CPU sets the hot air flag to the on state in step S7, the process proceeds to the in-tank temperature confirmation process in step S91, and the hot air flag is set in step S9. When the on state is set, the process proceeds to the in-tank temperature confirmation process in step S92.

  The loosening process in FIG. 11 is executed by the CPU in step S12 in place of the loosening process in FIG. 5. When the hot air flag is set to the on state in step S46, the CPU checks the in-bath temperature in step S93. Migrate to

  FIG. 12 shows the in-vessel temperature confirmation process in step S91, step S92, and step S93. The CPU detects the bath temperature signal from the bath temperature sensor in step S101, and the detected result of the bath temperature signal in the ROM in step S102. Is compared with the tank temperature judgment value (35 ° C.) recorded in advance. When it is determined that the detection result of the tank temperature signal is less than the tank temperature determination value, the hot air is supplied to the clothes in the rotating tank 15 by the drying process by keeping the hot air flag on. If it is determined that the detection result of the tank temperature signal is equal to or higher than the tank temperature determination value, the warm air flag is set to an off state in step S103, thereby supplying room temperature air to the clothes in the rotating tank 15 by a drying process.

According to the said Example 3, there exist the following effects.
If it is determined that the detection result of the bath temperature signal is equal to or higher than the bath temperature determination value in the bath water course processing, the calculation result of the weight R is determined if the calculation result of the weight W is lower than the threshold value. Even when it was determined that the value was 1 or less, the drying process was performed with the heater 35 stopped. That is, when a force is applied to each of the water tank 5 and the rotary tank 15 in a heated state with bath water, the drying process is performed in a state where the heater 35 is stopped, so that each of the water tank 5 and the rotary tank 15 is particularly made of synthetic resin. When it is made, it will not be deformed.

  The bath temperature confirmation process of FIG. 13 is performed by the CPU of the control circuit 40 in place of the bath temperature confirmation process of FIG. 12, and the CPU detects that the bath temperature signal is equal to or higher than the bath temperature determination value in step S102. If it is determined, the fluctuation amount R is compared with the determination value 5 in step S111. The shaking amount R is calculated in step S17 of the final dehydration process in the tank temperature confirmation process in steps S91 and S92, and the crossover determination value in step S44 of the loosening process in the tank temperature confirmation process in step S93. Those determined to be the following are used.

  When the CPU determines that the amount of shaking R is larger than the determination value 5 in step S111, the CPU sets the warm air flag to an off state in step S103, thereby supplying room temperature air to the clothing in the rotating tub 15 by a drying process. This determination value 5 is recorded in advance in the ROM, and is set smaller than the determination value 1. This determination value 5 corresponds to the low-temperature dry determination value, and when the CPU determines that the amount of shaking R is equal to or less than the determination value 5 in step S111, the hot air flag is kept on. Hot air is supplied to the clothes in the rotary tank 15 by a drying process.

According to the said Example 4, there exists the following effect.
When it is determined that the detection result of the bath temperature signal is equal to or higher than the bath temperature determination value, it is determined that the shake amount R is larger than the determination value 5 so that the drying process is performed while the heater 35 is stopped. By determining that the amount R was not larger than the determination value 5, the drying process was performed in the operating state of the heater 35. That is, even when each of the water tank 5 and the rotating tank 15 is heated with bath water, if the force acting on each of the water tank 5 and the rotating tank 15 is small, the drying process is performed in the operating state of the heater 35. Therefore, the dryness of the clothes in the rotary tank 15 can be safely increased.

  In each of the first to fourth embodiments, when it is determined in step S51 of each of FIGS. 6 and 9 that the hot air flag is set to the off state, the heater 35 has a smaller output than that of step S53. And the drying process may be performed in an operation state with a small output of the heater 35.

  In each of the first to fourth embodiments, the unbalance switch is used within the period from when the dehydration start command is transmitted in step S37 of FIGS. 5, 8, and 11 until the dehydration stop command is transmitted in step S43. It may be determined whether 49 is in an on state. In this case, it is preferable to proceed to step S45 by determining that the unbalance switch 49 is turned off, and to return to step S31 by determining that the unbalance switch 49 is turned on. That is, it may be determined according to the state of the unbalance switch 49 whether or not the uneven distribution of clothes in the rotary tank 15 has been improved.

  In each of the first to fourth embodiments, the speed sensor 46 is within a period from when the dehydration start command is transmitted in step S37 of FIGS. 5, 8, and 11 until the dehydration stop command is transmitted in step S43. The rotational speed of the washing motor 11 may be detected in accordance with the speed signal from the motor, and it may be determined whether or not the detection result of the rotational speed has reached a threshold value. In this case, when it is determined that the rotation speed detection result has reached the threshold value, the process proceeds to step S45, and when it is determined that the rotation speed detection result has not reached the threshold value, the process may return to step S31. . That is, whether or not the uneven distribution of clothes in the rotating tub 15 has been improved may be determined according to the state of increase in the rotational speed of the washing motor 11.

  In each of the first to fourth embodiments, a sensor that outputs an electric signal corresponding to the displacement of the water tank 5 in the final dehydration process or a sensor that outputs an electric signal corresponding to the speed of the water tank 5 instead of the acceleration sensor 48 is provided. It may be used.

In each of the first to fourth embodiments, the rotating tub 15 may be driven to rotate about a substantially vertical axis around the rotation axis of the washing motor 11 in the operation state of the washing motor 11.
As mentioned above, although one Example of this invention was described, these Examples are shown as an example and are not intending limiting the range of invention. These novel embodiments can be implemented in various other examples, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and spirit of the invention, and are also included in the invention described in the claims and equivalents thereof.

  1 is an outer box, 5 is a water tank, 11 is a washing motor, 13 is a pulsator, 15 is a rotating tank, 20 is a clutch mechanism, 30 is a fan motor, 31 is a fan, 35 is a heater, 40 is a control circuit (dehydration processing means, Shaking amount detection means, stirring determination means, drying processing means, stirring processing means, temperature drying determination means, weight detection means, weight determination means, tank temperature detection means, tank temperature determination means, comparison means), 48 is an acceleration sensor (sensor ).

Claims (5)

An outer box installed on the floor,
A water tank that is provided in the outer box and has an opening formed in the upper part for receiving water,
A rotating tub that is provided in the water tank and is driven to rotate about a vertical axis or a substantially vertical axis, and into which clothes are put;
A pulsator that is provided in the rotating tank and stirs the clothes in the rotating tank;
A washing motor that is provided in the water tub and that rotationally drives each of the rotating tub and the pulsator;
A clutch mechanism for switching a mechanical connection state of the rotary tub to the washing motor between a dehydrating mode and a washing mode;
A fan that sends dry air to dry clothes in the rotating tub;
A fan motor that rotationally drives the fan;
A sensor that outputs an electrical signal for detecting a horizontal shaking amount based on the position of the water tub when the washing motor is stopped;
Rotating the washing motor in the dehydrating mode of the clutch mechanism to release moisture from the clothes in the rotating tub by centrifugal force, including a process of driving the washing motor at a constant speed Dehydration means,
When the electric signal from the sensor is detected in a state where the washing motor is operated at the constant speed during the dehydration process, the electric signal from the sensor is detected. In response, a shaking amount detecting means for detecting a shaking amount in the horizontal direction of the water tank,
Stirring determination means for determining whether or not the detection result of the shaking amount is larger than the stirring determination value when the shaking amount of the water tank is detected;
A drying processing means for performing a drying process of sending drying air into the rotating tub by setting each of the washing motor and the fan motor in an operating state in the dewatering mode of the clutch mechanism;
Agitating processing means for agitating the clothes in the rotating tub with the pulsator by rotating the washing motor in the washing mode of the clutch mechanism,
The stirring processing means includes
The stirring process is started after the dehydration process is stopped when it is determined that the detection result of the shaking amount is larger than the stirring determination value, and the detection result of the shaking amount is the stirring determination value. The stirring process is not started after the dehydration process is stopped when it is determined that it is not larger than
The drying processing means includes
The drying process is started after the stirring process is stopped when it is determined that the detection result of the shaking amount is larger than the stirring determination value, and the detection result of the shaking amount is the stirring determination value. The washing machine is characterized in that the drying process is started after the dehydration process is stopped when it is determined that the drying process is not larger. A heater that warms the air by heating the drying air from the fan;
A temperature-drying determination means for comparing the detection result of the amount of shaking with a temperature-drying determination value that is smaller than the stirring determination value;
The drying processing means includes
When it is determined that the detection result of the shaking amount is equal to or less than the temperature-drying determination value, the drying process is performed in the operation state of the heater, and the detection result of the shaking amount is equal to or less than the temperature-drying determination value If it is determined that the temperature is not equal to or less than the temperature-drying determination value, the drying process is performed in an operating state in which the output of the heater is suppressed to a smaller value or in a state where the heater is stopped. The washing machine according to claim 1. A weight detecting means for detecting the weight of the clothes in the rotating tub;
A weight determination means for determining whether a weight detection result of the weight detection means is equal to or less than a weight determination value;
The drying processing means includes
When it is determined that the weight detection result is equal to or less than the weight determination value, the drying process is performed in the operation state of the heater;
When it is determined that the weight detection result is not less than the weight determination value, the drying process is performed in the operation state of the heater when it is determined that the shake detection result is less than the temperature dry determination value. An operation state in which the output of the heater is suppressed to be smaller than the case where it is determined that the detection result of the shaking amount is not equal to or less than the temperature-dry determination value when it is determined that the detection result is not equal to or less than the temperature-dry determination value The washing machine according to claim 2, wherein the drying process is performed when the operation is stopped. A tank temperature sensor that outputs a tank temperature signal corresponding to the temperature of the water in the water tank;
A tank temperature detecting means for detecting a tank temperature signal from the tank temperature sensor before the drying process is started;
When a bath temperature signal from the bath temperature sensor is detected, the bath temperature determination means for determining whether the detection result of the bath temperature signal is equal to or higher than the bath temperature determination value,
The drying processing means includes
When it is determined that the detection result of the tank temperature signal is equal to or higher than the tank temperature determination value, the detection result of the shaking amount is determined to be equal to or lower than the temperature dry determination value or the detection result of the weight is Even if it is determined that the weight is equal to or less than the weight determination value, the drying process is performed in one of an operation state in which the output of the heater is suppressed to be small and an operation stop state of the heater. The washing machine according to claim 2 or 3. Comparing means for comparing the detection result of the amount of shaking with a small low temperature dry determination value compared to each of the stirring determination value and the high temperature dry determination value,
The drying processing means includes
In the case where it is determined that the detection result of the shaking amount is equal to or less than the temperature-drying determination value or the weight detection result is determined to be equal to or less than the weight determination value,
When the detection result of the bath temperature signal is determined to be equal to or higher than the bath temperature determination value, the drying process is performed by determining that the detection result of the shaking amount is larger than the low temperature dry determination value. The drying process is performed either in an operation state in which the output of the heater is suppressed to a low level or in an operation stop state of the heater, and the detection result of the shaking amount is determined not to be larger than the low temperature dry determination value. The washing machine according to claim 4, wherein the washing is performed in an operating state of the heater.

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