JP2011072497A - Washing-drying machine and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing-drying machine and a drying machine each capable of enhancing drying efficiency. <P>SOLUTION: There are included a nozzle 38 (supply port) to supply warm air into an interior tub 10 and a vent 32b to vent the warm air outside a case 1. The nozzle 38 and the vent 32b are located on the opposite side each other across the center in the depth direction of an exterior tub 20. In addition, the nozzle 38 is located above the rotation center of an interior tub 10, and the vent 32b is located below the rotation center. The vent 32b is also formed on an air blow duct 30, set at the height to function as a water overflow port, and connected with the downstream side of the drainage valve V of a drainage hose 8 via a pipe coupling 50 and a bellows hose 51. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a washing dryer and a dryer provided with a means for drying clothes and the like.

  Drying clothes and the like with a washing and drying machine that can perform from washing to drying continuously, for example, by creating high-temperature and low-humidity air with a blower fan and a heat source and blowing it into the inner tub to increase the temperature of the clothes It is carried out by evaporating moisture from the clothing, and again creating and circulating high-temperature and low-humidity air (see Patent Document 1).

Japanese Patent Laying-Open No. 2005-137642 (FIG. 1)

  By the way, in recent washing and drying machines, water saving and power saving are demanded, but in the drying process by circulation, it is necessary to reduce the humidity of the high-temperature and high-humidity air after passing through the clothing. That is, in order to efficiently produce high-temperature and low-humidity air, a water-cooled dehumidifying mechanism using cooling water is required, and water saving is impaired, and heater heating is necessary, and power saving is also impaired.

  Therefore, it is necessary to take in low-humidity outside air during drying and supply it to the inner tank, and then discharge the air outside the machine. In this case, as an exhaust path, a so-called overflow hose (excess water was supplied into the tank). Means have been proposed for using the overflow port as a discharge port.

  However, in the washing and drying machine described in Patent Document 1, as a supply port for supplying warm air into the tub, for example, when supplied from the front side (front side) of the upper portion of the outer tub, the warm air supplied from the supply port is In other words, without hitting the clothes, there is a problem that the hot air is short cut and discharged from the outlet, and drying efficiency is impaired.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a washing / drying machine and a drying machine capable of improving the drying efficiency.

  The present invention includes an outer tub in which the inside becomes a washing room and a drying room, an inner tub that is rotatably arranged in the outer tub, stores laundry, a motor that drives the inner tub, and the inner tub. A drying apparatus having a blowing path for sending warm air, a blowing means and a heating means, and an intake means provided in the blowing path on the upstream side of the blowing means and sucking in the outside air in the housing; A washing / drying machine for discharging outside air sucked from the suction means through the inner tank to the outside of the housing, a supply port for supplying the hot air to the inner tank, and the hot air A discharge port for discharging to the outside of the housing, wherein the supply port and the discharge port are located on opposite sides of the center in the depth direction of the outer tub.

  According to the present invention, the hot air supply port and the discharge port are arranged on opposite sides (front side and rear side) with respect to the depth direction of the inner tank, so that the hot air supplied from the supply port is a shortcut. The hot air supplied from the supply port hits the laundry and is discharged from the discharge port. As a result, warm air can be efficiently applied to the laundry (the object to be dried), and power consumption can be reduced.

It is a perspective view which shows the external appearance of the washing-drying machine of this embodiment. It is a side view which shows the internal structure of the washing / drying machine of this embodiment. It is a perspective view which shows the internal structure of the washing / drying machine of this embodiment. It is a rear view which shows the internal structure of the washing / drying machine of this embodiment. It is sectional drawing which shows the supply port of the washing / drying machine of this embodiment, and its periphery structure. It is a perspective view which shows the exhaust air path provided in the ventilation duct of the washing / drying machine of this embodiment. It is the sectional view on the AA line of FIG. It is a side view which shows the flow of the air at the time of the exhaust_gas | exhaustion drying process in the washing / drying machine of this embodiment. It is a side view which shows the flow of the air at the time of the circulation drying process in the washing dryer of this embodiment. It is a block diagram which shows the washing-drying machine of this embodiment. It is a flowchart which shows an example of the control processing program of the washing / drying machine of this embodiment. It is a flowchart which shows an example of the control processing program of a washing dryer when outside temperature is less than predetermined temperature. It is a flowchart which shows an example of the control processing program of a washing dryer when a water level is higher than a regulation value.

Hereinafter, the washing / drying machine S of the present embodiment will be described with reference to FIGS. 1 to 13.
As shown in FIG. 1, the washing / drying machine S of the present embodiment is a drum-type washing / drying machine, and has a casing 1 whose outer shell is configured by combining a steel plate and a resin molded product. Is mounted on the base 1h. The housing 1 includes left and right side plates 1a and 1b (see FIG. 4 for 1b), a front cover 1c, a back cover 1d (see FIG. 2), an upper cover 1e, and a lower front cover 1f. The left and right side plates 1a and 1b are joined by a U-shaped upper reinforcing material (not shown), a front reinforcing material (not shown), and a rear reinforcing material (not shown), and include a base 1h. A box-shaped housing 1 is formed and has sufficient strength as a housing.

  A door 2 that closes an insertion port for putting in and out clothes (laundry, objects to be dried) is supported at a substantially center of the front cover 1c so as to be openable and closable by a hinge provided in the front reinforcing material. . A front cover 1 c in the vicinity of the door 2 is provided with a door release button 3 for releasing a lock mechanism (not shown) of the door 2. When the door release button 3 is pressed, the lock mechanism (not shown) is released and the door 2 is opened. When the door 2 is pressed against the front cover 1c, the door 2 is locked and closed. A front reinforcing material (not shown) has a circular opening for putting clothes in and out concentrically with an opening 20b (see FIG. 3) of an outer tub 20 (see FIG. 2) to be described later.

  An operation panel 4 including a power switch 4a, operation switches 4b and 4c, a display 4d, and the like is provided at the upper center of the housing 1. The operation panel 4 is electrically connected to a control device 60 (see FIGS. 2 and 3) provided at the lower part of the housing 1. Further, on the left side of the operation panel 4, a drawer-type tray 5 into which a detergent, a softening agent, or the like is charged is provided.

  In addition, on the right side of the operation panel 4, a pull-out drying filter 6 is provided. The dry filter 6 includes a mesh type filter 6a (see FIG. 3) so that lint and the like are removed. Cleaning of the dry filter 6 is performed by pulling out the dry filter 6 and taking out the mesh filter 6a (see FIG. 3). Further, the upper surface cover 1e is provided with a water supply hose connection port 7a from the water tap and a water absorption hose connection port 7b for remaining hot water in the bath.

  As shown in FIG. 2, the washing / drying machine S is provided with an inner tub (rotary drum) 10 as a cylindrical washing and dewatering tub that is rotatably supported in a housing 1. The inner tub 10 has an opening 10a for putting clothes in and out of the front side (front side) end face, and a plurality of through holes (not shown) for water flow and ventilation on the peripheral wall and the bottom wall (back side). Z). A fluid balancer 10b integrated with the inner tank 10 is provided at the edge of the opening 10a. Further, the inner peripheral wall of the inner tub 10 is provided with a plurality of lifters 10c extending in the depth direction (axial direction). When the inner tub 10 rotates during washing and drying, clothes and the like are surrounded by the lifter 10c and centrifugal force. It moves along and repeats the movement of falling by gravity. The rotation center O1 of the inner tub 10 is inclined so that the opening 10a side becomes higher.

  The washing / drying machine S includes a washing room and a drying room. The washing / drying machine S includes a cylindrical outer tub 20 that coaxially encloses the inner tub 10 and has an open front surface. An opening 20s (see FIG. 5) on the front surface of the outer tub 20 is provided with an outer tub cover 20a (see FIGS. 3 and 5) made of synthetic resin, which enables water storage in the outer tub 20. An opening 20b (see FIGS. 3 and 5) for taking in and out clothes is formed in the center of the front side (near side) of the outer tub cover 20a. The opening 20b and the opening provided in the front reinforcing member are connected by a rubber packing 22 (see FIG. 3). The packing 22 plays a role of maintaining the water tightness between the outer tub 20 and the door 2. This prevents water leakage during washing, rinsing and dehydration. A drain port 20 c is provided on the bottom surface of the outer tub 20, and a drain hose 8 is connected thereto.

  The front end of the drain hose 8 is connected to a drain hole 101 provided in the floor G. In addition, a drain valve V is provided in the middle of the drain hose 8. Water is stored in the outer tank 20 by closing the drain valve V and supplying water, and opening the drain valve V in the outer tank 20. Water is discharged outside the aircraft.

  In the washing / drying machine S, a motor 21 for rotationally driving the inner tub 10 is attached to the center of the back surface of the outer tub 20. The rotating shaft 21a of the motor 21 passes through the outer tub 20 and is coupled to a metal flange 10e provided on the back surface of the inner tub 10. The lower part of the outer tub 20 is supported by a plurality of vibration isolating means 9 (consisting of coil springs and dampers) whose lower side is fixed to the base 1h. The upper portion of the outer tub 20 is supported by an auxiliary spring (not shown) attached to the upper reinforcing member, and is configured to prevent the outer tub 20 from falling in the front-rear direction.

  As shown in FIG. 4, components related to water supply such as a water supply electromagnetic valve 7 a 1, a bath water supply pump 7 b 1, and a water level sensor 63 (see FIG. 10) are provided behind the tray 5 (see FIG. 1). The detergent container 5a (see FIG. 3) is configured to communicate with the outer tub 20, and the washing water is supplied to the outer tub 20 by opening the water supply electromagnetic valve 7a1 or operating the bath water supply pump 7b1. It has come to be.

  As shown in FIG. 2, the washing / drying machine S includes a blower duct (fan passage) 30 inside the housing 1. The blower duct 30 has a rear duct 32 extending in the vertical direction (vertical direction) on the back side of the outer tub 20 and an upper duct 33 extending on the upper surface side of the outer tub 20 from the rear to the front. The rear duct 32 has a flat flow path that is wide in the left-right direction and thin in the front-rear direction. The upper duct 33 has a flat flow path that is wide in the left-right direction and thin in the up-down direction.

  The blower duct 30 has an intake port 34a formed on the inner wall surface of the inclined duct 34 connecting the upper end portion of the rear duct 32 and the rear end portion of the upper duct 33, and the intake valve 13 for opening and closing the intake port 34a is provided. It has been. The intake valve 13 has a valve opening position for opening the intake port 34a and a valve closing position for closing the intake port 34a via drive means (such as a motor) controlled by the control device 60 (see FIGS. 2 and 3). The position can be controlled. When the intake valve 13 is in the valve open position (see FIG. 8), the flow path between the rear duct 32 and the upper duct 33 is blocked, and the air (outside air) in the housing 1 is moved above the blower duct 30. It can be taken into the duct 33. Further, when the intake valve 13 is in the closed position, the rear duct 32 and the upper duct 33 communicate with each other to form a circulation flow path.

  A blower fan unit 40 including a fan 41 (blower unit) and a heater 42 (heating unit) is provided on the downstream side of the upper duct 33. In the present embodiment, the air duct 30 and the air blowing fan unit 40 (fan 41 and heater 42), a bellows (air blowing path) 31, a hot air duct (air blowing path) 35, a bellows (air blowing path) 36, a blowout, which will be described later. A nozzle (air blowing path) 37 constitutes a drying device.

  Although not shown, the rear duct 32 is provided with a stainless steel plate (heat exchange plate) on which a large number of protrusions are formed, for example, as a water-cooled dehumidifying mechanism. A water supply pipe (not shown) provided with a water supply valve 53 (see FIGS. 9 and 10) for flowing cooling water along the wall surface is connected.

  As shown in FIG. 3, the fan 41 is a so-called turbo fan, and an impeller (not shown) composed of a plurality of blades is accommodated in a fan case 41a, and the periphery of the impeller A scroll-like (spiral) flow path (not shown) is formed. Further, an intake hole (not shown) for sucking air is formed on one surface side of the rotation center of the impeller on the outer surface of the fan case 41a, and an electric motor M that rotates the impeller at high speed is attached to the other surface side. ing.

  The heater 42 (see FIG. 2) is composed of a PTC (Positive Temperature Coefficient) heater or the like, and is provided on the downstream side of the scroll-like flow path in the fan case 41a. The fan case 41a on the downstream side of the heater 42 is formed with a discharge port (not shown) through which hot air (drying air) generated by the heater 42 is discharged.

  The lower part of the air duct 30 (rear duct 32) is connected substantially horizontally to the outlet 20d (see FIG. 2) provided at the lower back of the outer tub 20 by a flexible bellows 31.

  The upper duct 33 includes a filter duct 33a (see FIG. 3). The front surface of the filter duct 33a has an opening, and the drawer-type drying filter 6 is inserted into the opening. The downstream side of the drying filter 6 (see FIG. 3) is connected to an air intake hole (not shown) of the blower fan unit 40, and a hot air duct 35, a bellows 36, and a blowout are connected to a discharge port (not shown) of the blower fan unit 40. The nozzles 37 are connected in order. The blowing nozzle 37 is located between the uppermost surface of the outer tub 20 and the rotation center O1 (see FIG. 2), and on the front side of the center O2 (see FIG. 2) in the depth direction (front-rear direction) of the outer tub 20. At the position, it is connected to a hot air outlet 20e (see FIG. 5) provided in the outer tank cover 20a of the outer tank 20.

  As shown in FIG. 5, the hot air outlet 20e is arranged along the opening 20b from the front side of the outer tank cover 20a, and is configured so that the internal flow path becomes narrower. A nozzle (supply port) 38 is formed by the wall surface and the inner wall surface of the hot air outlet 20e. The nozzle 38 is located so as to open between the opening 10 a on the inner peripheral side of the balancer 10 b and the door 2, and is configured so that the opening of the nozzle 38 faces the inside of the inner tank 10.

  In addition, the inner diameter of the opening 20b of the outer tub cover 20a and the inner diameter of the opening 10a of the inner tub 10 are set substantially the same so that clothing does not enter between the gaps between the inner tub 10 and the outer tub cover 20a. For this reason, the outlet of the nozzle 38 of the warm air outlet 20e is formed so as to jump out from the inner peripheral surface of the opening 20b, and the nozzle 38 opens toward the inner tank 10. Moreover, by comprising in this way, the warm air from the nozzle 38 can be directly applied to the clothing in the inner tank 10.

  As shown in FIG. 6, one end of a bellows 31 is attached to the lower end portion of the rear duct 32 (the air duct 30). The other end of the bellows 31 is connected to a circular outlet 20d (see FIG. 4) formed on the back surface of the outer tub 20. The rear duct 32 has a flat shape that is wider in the left-right direction and has an inner diameter in the left-right direction that is sufficiently longer than the inner diameter in the front-rear direction. Moreover, the height position of the outlet 20d is located at a height from the lowermost surface of the outer tub 20 to the rotation center O1 (see FIG. 2) with respect to the back surface of the outer tub 20 (see FIG. 4). .

  The bellows 31 is formed of an elastically deformable material such as rubber, and is configured such that a bellows portion 31a having a track-shaped cross section in a track shape is disposed vertically at the center in the front-rear direction (horizontal direction). .

  Further, the bellows 31 is formed with connecting portions 31b and 31c having a circular channel cross section at both ends in the front-rear direction of the bellows portion 31a so as to be integrally formed with the bellows portion 31a. Are arranged. The bellows portion 31a is formed so as to be offset leftward with respect to the axial center of the connection portions 31b and 31c.

  Further, a pipe joint 50 is attached to the lower end portion of the air duct 30 in the vicinity of the bellows 31 via a plurality of screws 50c. The pipe joint 50 is formed of a material such as a synthetic resin, is connected to a discharge port 32b (see FIGS. 2 and 7) formed in the rear duct 32, and a pipe portion 50a extends downward. The pipe joint 50 has a large-diameter portion 50b having a horizontally long elliptical shape (track shape) when viewed from the front, and an opening of the large-diameter portion 50b is connected to the discharge port 32b.

  The large-diameter portion 50b is disposed on the front surface 32a side of the rear duct 32 so as to be offset above the bellows 31 and on the right side (outside) with respect to the left-right direction. Furthermore, with respect to the large diameter part 50b, the pipe part 50a extends downward from a position offset to the right side (outside) in the left-right direction.

  Moreover, it arrange | positions so that the pipe part 50a of the pipe joint 50 may pass through the recessed part 31d formed in the bellows part 31a of the bellows 31. FIG. Thus, the bellows 31 and the pipe joint 50 can be made compact without projecting from the left and right ends of the rear duct 32 without impairing the flow of exhaust gas from the outer tub 20 to the rear duct 32 (blower duct 30). It becomes possible to arrange.

  Note that one end of a flexible bellows hose 51 (see FIG. 2) is connected to the tip of the pipe joint 50, and the other end is connected to the downstream side of the drain valve V of the drain hose 8. .

  Further, as shown in FIG. 2, the discharge port 32b is set at a height position that functions as an overflow port. That is, the lower end of the opening of the discharge port 32b is set to a height position that is the maximum water level Lmax during washing. The water exceeding the maximum water level Lmax passes through the pipe joint 50 and the bellows hose 51 (overflow pipe), is discharged to the drain hose 8, and then is discharged to the outside of the washing / drying machine S (housing 1).

  In addition, by making the discharge port 32b function as an overflow port, for example, a pipe joint 50 connected to the discharge port 32b and a bellows hose connected to the pipe joint 50 are located below the discharge port 32b. 51, the drainage hose 8 connected to the bellows hose 51 is configured to have a watertight structure using a seal member or the like.

  As shown in FIG. 7, the large-diameter portion 50b of the pipe joint 50 is connected to the front surface 32a of the rear duct 32, and the base portion forms a space with a rectangular cross section, and is about half the major diameter R of the pipe portion 50a. Is formed so as to have a buffer space Q having a cross section larger than the flow path cross section of the pipe portion 50a. Thus, by providing the buffer space Q, it becomes possible to reduce turbulent flow when warm air during drying flows from the rear duct 32 to the pipe portion 50a, and more efficient exhaust can be performed. .

  In addition, since the pipe joint 50 is attached to the front surface 32a of the rear duct 32, the protrusion from the rear duct 32 to the rear is eliminated, and the size of the washing and drying machine S in the front-rear direction can be reduced. Further, the dead space is reduced by arranging the pipe joint 50 in a triangular space (see FIG. 2) in a side view formed on the back surface of the outer tank 20 and the front surface 32a of the rear duct 32 arranged in an inclined manner. Thus, the space can be used effectively.

  Next, operation | movement of the washing dryer S of this embodiment is demonstrated. First, the overall configuration of the washing / drying machine S of the present embodiment will be briefly described. As shown in FIG. 10, the control device (microcomputer) 60 is connected to an operation button input circuit 62, a water level sensor 63, a temperature sensor 64, and a vibration sensor 65 that are connected to the various switches 4b and 4c. Various information signals in the operation, washing process, and drying process are acquired. The temperature sensor 64 includes an outside air temperature sensor, a temperature sensor for the intake port 34a, a temperature sensor for the drain port 20c, and the like.

  In addition, the control device 60 opens and closes the water supply electromagnetic valve 7a1, the bath water / water supply pump 7b1, the drain valve V, the intake valve 13 and the water supply valve 53 via each drive circuit 66, and the rotation of the motor M of the motor 21 and the fan 41. Controls the speed and energization of the heater 42. In addition, the control device 60 controls the display 4d, the light emitting diode 67, and the buzzer 68 for notifying the user of the operation state of the washing / drying machine S.

  The control device 60 is activated when the power switch 4a is pressed and the power is turned on, and executes, for example, a basic control processing program for washing and drying shown in FIGS.

  In step S101, the control device 60 performs state confirmation and initial setting of the washing / drying machine S.

  Then, in step S102, the control device 60 turns on the display 4d of the operation panel 4, and continues the washing / drying course (the course in which only washing is performed, from washing to drying) according to the instruction input from the operation switch 4c. Or a course that only performs drying). When no instruction is input, the standard washing / drying course or the previous washing / drying course is automatically set.

  Then, in step S103, the control device 60 confirms the presence or absence of a start signal from the operation switch 4b (start switch) of the operation panel 4. The control device 60 repeats the process of step S103 when determining that the start switch signal is “none (none)”, and proceeds to step S104 when determining that the start switch signal is “present (present)”. .

  In step S104, the control device 60 executes washing. In this washing, washing, intermediate dehydration, rinsing, and final dehydration are sequentially performed. At this time, washing is performed by appropriately controlling the water supply electromagnetic valve 7a1, the bath water supply pump 7b1, the drain valve V, the motor 21, and the like.

  In addition, when the water level exceeds a predetermined value (water level determined to be abnormal, Lmax) at the time of washing, the water is drained through the pipe joint 50 and the bellows hose 51 which are also configured as an overflow hose (OF hose). It is discharged downstream of the drain valve V of the hose 8. And the water discharged | emitted by the drainage hose 8 is directly discharged | emitted by the drainage hole 101 provided in the floor G outside the housing | casing 1 (outside the machine). With this configuration, it is possible to prevent water such as washing water from overflowing outside the machine (outside the casing 1) beyond a predetermined water level.

  Then, after completion of washing, the process proceeds to step S105, and the control device 60 checks whether or not a washing / drying course is set. In step S105, the control device 60 ends the operation when only the washing course is set (No), and proceeds to step S106 when the washing / drying course is set (Yes).

  In step S106, the control device 60 performs high-speed dewatering with the fan 41 turned off and the heater 42 turned off. In the high-speed dehydration, the inner tub 10 is rotated at a high speed to effectively dehydrate moisture from the clothes (centrifugation at a high speed).

  Then, the process proceeds to step S107, and the control device 60 determines whether or not a specified time has elapsed since the start of high-speed dewatering. Whether the specified time has elapsed is determined by a timer (not shown). In step S107, when it is determined that the specified time has not elapsed (No), the control device 60 repeats the process of step S107, and when it is determined that the specified time has elapsed (Yes), step S108. Proceed to

  In step S108, the control device 60 detects the value of an outside air temperature sensor (not shown) and checks whether the outside air temperature is equal to or higher than a predetermined temperature. The predetermined temperature is set to 10 ° C., for example. Moreover, the outside temperature sensor which detects outside temperature is provided in the position (bottom part in the housing | casing 1) in which the outside air (refer FIG. 8) in the housing 1 is taken in, for example. In step S108, when the control device 60 determines that the outside air temperature is not equal to or higher than the predetermined temperature (No), the control device 60 proceeds to the control shown in FIG. 12, while when it determines that the outside air temperature is equal to or higher than the predetermined temperature. (Yes), the process proceeds to step S109.

  When the outside air temperature is equal to or higher than the predetermined temperature, in step S109, the control device 60 energizes (ON) the heater 42 with “weak (for example, 600 watts or less)” while rotating the fan 41 at a high speed. While repeating forward / reverse rotation of the inner tub 10 and changing the position of the clothes in the inner tub 10, hot air is blown onto the clothes (laundry) (heater heating circulation drying step).

  That is, in the heater heating circulation drying step, as shown in FIG. 2, the air discharged from the fan 41 is cooled by the heater 42 with low humidity and high temperature while the intake valve 13 is closed (with the air duct 30 communicated). And is discharged from the nozzle 38 (see FIG. 5) into the inner tank 10 through the warm air outlet 20e.

  The discharged warm air warms the clothing, and moisture is evaporated from the clothing using a part of the heat. For this reason, the humidity of the circulating air at the outlet of the inner tub 10 is nearly saturated humidity. The hot and humid hot air discharged from the inner tank 10 is discharged from the outlet 20 d of the outer tank 20, passes through the bellows 31 and the blower duct 30, and returns to the blower fan unit 40. At this time, the warm air returns to the blower fan unit 40 while giving a part of heat to the outer tub 20 and the blower duct 30.

  As described above, since the circulating air reaches substantially saturated humidity at the outlet of the inner tub 10, when it is cooled by the inner wall of the outer tub 20 and the air duct 30, moisture is condensed on the inner wall as the temperature decreases. At this time, the warm air temperature and the clothing temperature are not constant, and the temperature continues to rise. Accordingly, heat is continuously applied to the inner tub 10, the outer tub 20, and the air duct 30, so these temperatures also continue to rise. That is, condensation (dehumidification) can be performed while accumulating heat in the clothes and the air duct 30. The hot air thus dehumidified returns to the fan 41 through the air duct 30.

  In such a heater heating circulation drying process, when hot air circulates, a water seal is formed in the drain trap 100 and the outlet side of the discharge port 32b is sealed. The warm air that has flowed to 30 is not discharged outside the casing 1 through the discharge port 32b.

  And it progresses to step S110 and the control apparatus 60 confirms whether regulation time passed since the drying start. In addition, as the specified time, a value determined in advance through experiments or the like is used. For example, about 30% of the entire drying time is set.

  In step S110, when it is determined that the specified time has not elapsed (No), the control device 60 repeats the process of step S110, and when it is determined that the specified time has elapsed (Yes), step S111. Proceed to

  In step S111, the control device 60 fully opens the intake valve 13 while energizing the heater 42 (for example, 600 W). As a result, as shown in FIG. 8, the rear duct 32 and the upper duct 33 are blocked (the circulation air passage is fully closed), and the intake port 34a is fully opened. Therefore, the upper duct 33 on the downstream side of the intake valve 13 communicates with the air (outside air) in the housing 1.

  And it progresses to step S112 and the control apparatus 60 confirms whether the value of the water level sensor 63 is below a regulation pressure. The water level sensor 63 detects the pressure in the outer tub 20, and can convert the pressure applied to the diaphragm into an electrical signal and detect this to detect the pressure in the outer tub 20.

  In step S112, when the control device 60 determines that the value of the water level sensor 63 is higher than the specified value (No), the control device 60 proceeds to the control shown in FIG. (Yes), the process proceeds to step S113.

  In step S113, the control device 60 increases the rotation speed (rotation speed) of the fan 41, and checks whether the rotation speed (rotation speed) of the fan 41 is equal to or higher than the specified rotation speed (specified rotation speed). In step S113, when the control device 60 determines that the fan 41 is not equal to or higher than the specified rotational speed (No), the control device 60 returns to step S112, and when it is determined that the fan 41 is equal to or higher than the specified rotational speed (Yes). ), The process proceeds to step S114. Steps S112 and S113 are processes for determining whether or not the water seal of the drain trap 100 has been broken. In the case of Yes in S113, it is determined that the water seal has been broken and the heater heating exhaust drying process is performed. Transition.

  As shown in FIG. 8, when the intake valve 13 is opened (S111), the air (outside air) in the housing 1 is taken into the upper duct 33 from the intake port 34a and is generated by the fan 41 and the heater 42. Hot air of high temperature and low humidity is discharged from the nozzle 38 toward the inner tank 10. The discharged hot air is discharged from an outlet 20d of the outer tub 20 provided on the opposite side (back side) of the nozzle 38 in the axial direction (depth direction) while hitting clothing. The warm air discharged from the outlet 20d of the outer tub 20 is discharged out of the housing 1 through the bellows 31, the rear duct 32, the discharge port 32b, the pipe joint 50, the bellows hose 51, and the drainage hose 8.

  In step S114 of FIG. 11, the control device 60 measures the initial temperature of the drain port 20c at the lower part of the outer tub 20 and the initial temperature of the intake port 34a (the inlet side of the fan 41). Each initial temperature is a temperature at which the temperature rise starts to stabilize after the start of drying.

  And it progresses to step S115 and the control apparatus 60 performs drying completion determination. That is, the control device 60 measures the end temperature of the drain port 20c at the lower part of the outer tub 20 and the end temperature of the intake port 34a, and determines whether or not the difference ΔT between the initial temperature and the end temperature exceeds the specified temperature. . The specified temperature (predetermined temperature) is determined in advance through experiments or the like. In addition, the drying end determination is not limited to the determination based on the temperature difference ΔT, and may be determined based on whether a specified time (elapsed time since the temperature began to stabilize) has elapsed.

  In step S115, when the control device 60 determines that ΔT is equal to or lower than the specified temperature (No), the control device 60 determines that the drying is not completed, repeats the process of step S115, and ΔT exceeds the specified temperature. If it is determined (Yes), it is determined that the drying is completed, and the process proceeds to step S116.

  In step S116, the control device 60 changes the rotational speed of the fan 41 from high speed to low speed, opens the drain valve V and the water supply valve 53, and turns off the heater 42. The inside of the tank is cooled by rotating the fan 41 at a low speed that does not affect the recovery of the water seal described later. By opening the water supply valve 53, the water sealing of the drain trap 100 is recovered.

  And it progresses to step S117 and the control apparatus 60 judges whether regulation time has passed since the water supply valve 53 was opened. In step S117, when it is determined that the specified time has not elapsed (No), the control device 60 repeats the process of step S117, and when it is determined that the specified time has elapsed (Yes), It is determined that the water sealing of the drain trap 100 has been recovered, the fan 41 is stopped, the motor 21 is stopped, the intake valve 13, the water supply valve 53, and the drain valve V are all closed, and the series of processes is completed.

  If it is determined that the outside air temperature is less than a predetermined temperature (for example, less than 10 ° C.) (No in S108), the process proceeds to step S121 in FIG. 12, and the intake valve 13 is fully closed (the circulation air path is fully opened). ) Will continue. When the outside air temperature is lower than the predetermined temperature, the heater heating circulation drying operation by the dehumidifying operation using the heater 42 is performed.

  Then, similarly to steps S109 and S110, the control device 60 rotates the inner tub 10 while reversing the left and right while turning on the heater 42 (for example, 600 W) until the specified time elapses (steps S122 and S123). .

  Then, when the specified time elapses in step S123, the process proceeds to step S124, and the control device 60 opens the water supply valve 53 to provide cooling water in the air duct 30 as shown in FIG. Flow down along the plate (not shown). As a result, the hot and humid air blown to the laundry and discharged from the outlet 20d through the bellows 31 to the blower duct 30 is cooled by the water-cooled dehumidifying mechanism when passing through the rear duct 32, and dehumidified (water-cooled). Dehumidified). The dehumidified air circulates through the drying filter 6, the fan 41, and the heater 42 so as to be introduced again from the nozzle 38 into the inner tank 10.

  Then, the process proceeds to step S125, and the control device 60 determines whether a specified time has elapsed since the start of water-cooled dehumidification with cooling water. The specified time here is a time determined in advance through experiments or the like. When it is determined that the specified time has not elapsed (S125, Yes), the control device 60 repeats the process of step S125, and when it is determined that the specified time has elapsed (S125, Yes), the water supply valve 53 is closed and it progresses to the process after step S126. Since the processes of steps S126 to S130 are the same as steps S114 to S118 shown in FIG.

  As described above, when the outside air temperature is low, the heater heating circulation drying operation by water-cooled dehumidification is performed without performing the heater heating exhaust drying operation for opening the intake valve 13 and drying while taking in the outside air as described above. Do. In addition, it is not limited to water cooling dehumidification, Air cooling dehumidification using air may be sufficient.

  Further, in steps S112 and S113 shown in FIG. 11, when it is determined that the value of the water level sensor 63 has exceeded the specified pressure before the rotation speed of the fan 41 becomes equal to or higher than the specified rotation speed (No in S113, S112 As shown in FIG. 13, the process proceeds to step S131, where the control device 60 operates the intake valve to be slightly closed rather than fully open (for example, 80% when fully open is 90 °). And make the circulation air passage slightly open.

  And it progresses to step S132 and the control apparatus 60 confirms again whether the value of the water level sensor 63 is below a regulation pressure. When the control device 60 determines that the value of the water level sensor 63 is equal to or lower than the specified pressure (S132, Yes), the control device 60 proceeds to step S133, and increases the rotation speed of the fan 41 while increasing the detected value of the water level sensor 63. Check.

  If it is determined in step S133 that the rotation speed of the fan 41 is not equal to or higher than the specified rotation speed (specified rotation speed) (No), the process returns to step S132, and whether the value of the water level sensor 63 is equal to or less than the specified pressure. Judge whether.

  In step S132, when it is determined that the value of the water level sensor 63 confirmed again exceeds the specified pressure (No), the control device 60 proceeds to the processing of steps S121 to S130 shown in FIG. The heater heating circulation drying process is executed without executing the exhaust drying process.

  Note that steps S134 to S138 shown in FIG. 13 are the same as steps S114 to S118 shown in FIG.

  In the control shown in FIG. 11, the heater heating circulation drying process is performed in the first half of the drying process and the heater heating exhaust drying process is performed in the second half. However, the intake valve 13 is fully opened in all the drying processes. The heater 42 may be weak (for example, 600 W or less) and the exhaust drying process may be performed.

  As described above, according to the washer / dryer S of the present embodiment, the nozzle 38 (supply port) and the discharge port 32b are positioned opposite to each other across the center O2 in the depth direction of the outer tub 20. Since it provided, warm air can be reliably applied to the laundry (drying object) at the time of drying, and it becomes possible to improve drying efficiency.

  Further, according to the washing / drying machine S of the present embodiment, the nozzle 38 (supply port) is disposed above and the discharge port 32b is disposed below the rotation center O1 of the inner tub 10, so the laundry (object to be dried) Thus, it is possible to more reliably apply hot air to the air, thereby further improving the drying efficiency.

  Moreover, according to the washing / drying machine S of this embodiment, the structure of the washing / drying machine S can be simplified by using the discharge port 32b also as the overflow port. In addition, by providing the discharge port 32b in the air duct 30, it is not necessary to provide an overflow hose with an overflow port in the outer tub 20, so that the structure of the outer tub 20 can be simplified.

  In addition, according to the washer / dryer S of the present embodiment, by providing the outlet 20d of the outer tub 20 below the height position of the discharge port 32b, the hot air can sink below the discharge port 32b. Since the flow path can be formed, the hot air from the nozzle 38 can be efficiently applied to the laundry, so that the drying efficiency can be further increased.

  In the following description, the washing / drying machine S is described as an example, but the present invention can also be applied to a drying machine for drying clothes. The dryer includes a drum (inner tub + outer tub) that stores an object to be dried (clothes after washing, etc.), a motor that rotationally drives the drum (inner tub), and a blowing means that sends air for drying to the drum. A heating device, a drying device including an air passage, and an air intake means are configured, and by providing an outlet in the air passage on the upstream side of the air passage, hot air can be efficiently applied to an object to be dried. It becomes possible to increase the drying efficiency. In addition, except the point of an overflow port, the effect similar to the above-mentioned washing dryer D is acquired.

  Moreover, in the washing / drying machine S of this embodiment, although the case where the discharge port 32b was provided in the ventilation duct 30 was mentioned as an example, it demonstrated, for example, it is not limited to this, For example, the bottom side of the back surface of the outer tub 20 You may make it provide a discharge port. Moreover, the discharge port in that case may be used also as the overflow port, or may be provided at a position lower than the overflow port and provided with an on-off valve that opens during exhaust drying.

  Further, the supply port (nozzle 38) may be an upper part on the back side in the depth direction of the outer tub 20, and the discharge port may be a lower part on the near side in the depth direction of the outer tub 20.

DESCRIPTION OF SYMBOLS 1 Case 8 Drain hose 10 Inner tank 13 Intake valve (intake means)
20 Outer tank 20d Outlet 21 Motor 30 Blower duct (Blower passage, dryer)
31 Bellows (air blower, drying device)
32, 33 Duct 32b Discharge port 34a Intake port (intake means)
35 Hot air duct
36 Bellows
37 Blowout nozzle (blower passage)
38 nozzles (supply port)
40 Blower fan unit (drying device)
41 Fan (air blowing means, drying device)
42 Heater (heating means, drying device)
50 Piping joint (communication path)
51 Bellows hose (communication path)
50a Pipe part 50b Large diameter part O1 Center of rotation O2 Center of depth direction of outer tub Q Buffer space S Washing dryer V Drain valve

Claims (11)

An outer tub in which the inside becomes a washing room and a drying room,
An inner tub that is rotatably arranged in the outer tub and accommodates laundry;
A motor for driving the inner tank;
A drying device having a blowing path for sending warm air to the inner tank, a blowing means and a heating means;
An air intake means that is provided in the air supply path upstream of the air supply means and sucks in the outside air in the housing, and the outside air sucked in from the air intake means during the drying operation passes through the inner tank A washing and drying machine that discharges outside the housing,
A supply port for supplying the warm air to the inner tub and a discharge port for discharging the warm air to the outside of the housing, the supply port and the discharge port sandwiching the center in the depth direction of the outer tub A washing and drying machine characterized in that they are located on opposite sides of each other.   The washing / drying machine according to claim 1, wherein the supply port is located above the rotation center of the inner tub, and the discharge port is located below the rotation center.   The said discharge port is set to the height which functions as an overflow port, and is connected to the downstream of the drainage valve of the drainage hose via the communicating path. Laundry dryer.   The outlet of the outer tub to which the air passage is connected is located vertically below the outlet, and the outlet is provided in the air passage. The washing / drying machine according to claim 3. The air passage is arranged from the outlet of the outer tub through the back surface of the outer tub,
The washing / drying machine according to claim 4, wherein the communication path connected to the discharge port is provided on a side facing the back surface of the outer tub.   The opening portion of the communication path connected to the discharge port has a buffer space having a channel cross-section formed larger than the pipe portion on the downstream side of the communication path. Item 6. A washing and drying machine according to Item 5. An outer tank whose inside is a drying chamber;
An inner tub that is rotatably arranged in the outer tub and accommodates laundry;
A motor for driving the inner tank;
A drying device having a blowing path for sending warm air to the inner tank, a blowing means and a heating means;
An air intake unit that is provided in the air passage on the upstream side of the air supply unit and sucks outside air in the housing;
A supply port for supplying the hot air to the inner tub and a discharge port for discharging the hot air to the outside of the housing, the supply port and the discharge port sandwiching the center in the depth direction of the inner tub The dryers are located on opposite sides of each other.   The washing / drying machine according to claim 7, wherein the supply port is located above the rotation center of the inner tub, and the discharge port is located below the rotation center.   The outlet of the outer tub to which the air passage is connected is located vertically below the outlet, and the outlet is provided in the air passage. The dryer according to claim 8. The air passage is arranged from the outlet of the outer tub through the back surface of the outer tub,
The dryer according to claim 9, wherein the communication path connected to the discharge port is provided on a side facing the back surface of the outer tub.   The opening portion of the communication path connected to the discharge port has a buffer space having a channel cross-section formed larger than a pipe portion on the downstream side of the communication path. Item 11. The dryer according to Item 10.

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