JP5430638B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing and drying machine provided with a drying air path for circulating drying air in a rotating drum that rotates inside a water tank.

  A drum-type washing and drying machine that has been widely used in recent years has a bottomed cylindrical water tank supported in an outer casing in a horizontal or oblique horizontal position, and has a bottom that rotates coaxially inside the water tank. A cylindrical rotary drum is accommodated (see, for example, Patent Document 1).

  The water tub and the rotating drum have an opening that opens on the same side, and the laundry is put into the rotating drum through these openings and immersed in the washing water that accumulates at the bottom of the water tub and the rotating drum. The rotary drum is repeatedly lifted and dropped by repeated rotation, and when it is dropped, it is struck against the circumferential surface of the rotary drum and washed.

  After the laundry has been washed, most of the residual moisture is centrifugally dehydrated by high-speed rotation of the rotating drum, and then dried by contacting with the drying air introduced into the rotating drum. The drying air is connected to the introduction port and the outlet port that open in the water tank by a blow duct, and circulates in the drying air path that includes the water tank and the rotating drum.

  The drying air passage is provided with a blower fan that raises the dry air. A cooling unit is provided on the upstream side of the blower fan, and a heater is also provided on the downstream side. The dry air comes into contact with the laundry in the rotating drum, takes the moisture of the laundry, cools in the cooling unit, becomes dry air from which the contained moisture is condensed and removed, and is heated when passing through the heater. Return to the rotating drum. The laundry in the rotating drum is dried by repeating contact with the circulating drying air in this way.

  The washing and drying machine described in Patent Literature 1 further includes an exhaust duct that communicates the outside of the washing and drying machine with a drying air passage, a damper that opens and closes the exhaust duct, and an air inlet formed in the drying air passage. The laundry dryer drives the damper in the second half of the drying process to open the exhaust duct, exhausts the wet drying air, and stops the heater. At this time, the pressure in the dry air passage is reduced, and the air dried from the air intake is taken into the dry air passage and comes into contact with the laundry. However, when exhaust from the exhaust duct is insufficient, the pressure difference between the inside and outside of the drying air passage becomes small and intake air becomes insufficient, which may require a long time for drying the laundry.

  On the other hand, Patent Document 2 discloses a washing / drying machine including an intake valve provided in a drying air channel, a drain hose connecting a drain trap and a water tank, and a drain valve installed in the drain hose, The washer-dryer opens the intake valve and drain valve in the latter half of the drying process, controls the drive of the fan to break the water seal of the drain trap, exhausts wet dry air from the drain hose, and air that is dried from the intake valve Into the dry air passage. In this washing and drying machine, in order to prevent odor from entering from the drainage hose, the drive of the fan is controlled so as to maintain the inside of the drying air passage at a high pressure, and the exhaust can be surely performed.

JP 2008-110135 A JP 2011-56194 A

  However, the washing and drying machine described in Patent Document 2 has a problem that noise is generated by the fan because the drive of the fan is controlled to maintain the inside of the drying air passage at a high pressure.

  This invention is made | formed in view of such a situation, and it aims at providing the washing-drying machine which can perform the intake-exhaust in a dry air path reliably, and can suppress generation | occurrence | production of the noise at the time of drying.

The washing and drying machine according to the present invention includes a water tank, a rotating drum that rotates inside the water tank, a drying air path through which the drying air supplied into the water tank and the rotating drum circulates, and the drying air path. In a washer / dryer comprising a disposed blower fan and a heater that heats the drying air blown by the blower fan, the exhaust air passage communicated with the drying air passage and the communicating portion between the exhaust air passage opposed to each other Pivotally supported on the peripheral surface of the drying air passage, and provided with a guide plate for guiding the dry air to the exhaust air passage, formed between the suction side of the blower fan and the guide plate in the dry air passage, An intake port that opens and closes by pivoting the guide plate; an exhaust plate that opens and closes the exhaust air passage; a first drive unit that pivots the guide plate; a second drive unit that drives the exhaust plate; Control unit for controlling driving of first driving unit and second driving unit The control unit turns on the heater in the first half of the laundry drying process, closes the intake port with the guide plate by the first driving unit, and the second driving unit The exhaust air passage is closed, and in the latter half of the drying step, the heater is turned off, the first driving unit opens the intake port with the guide plate, and the dry air is supplied to the exhaust air passage. induced to, by the second driving unit, Ri Citea to open the discharge air path includes a water temperature detector for detecting a temperature of the washing water, wherein the control unit is detected by the water temperature detecting unit Based on the water temperature, a time for opening the air inlet or an angle of the guide plate with respect to the peripheral surface is determined, and the air intake is opened or pivoted to the determined angle for the determined time. and wherein the Citea Rukoto to.

In the present invention, a guide plate that guides the dry air to the exhaust air passage is disposed at a portion communicating with the exhaust air passage, and the direction of the guide plate is controlled to exhaust the wet dry air flowing through the dry air passage. Ensure exhaust through the passage. Then, dry air outside the drying air passage is taken into the drying air passage from the air inlet. When it is not necessary to take in dry air from the air inlet, the direction of the guide plate is made substantially parallel to the drying air path. Further, it is not necessary to maintain a high pressure in the drying air passage, and noise generation by the blower fan is suppressed.
In addition, the intake port is opened and closed by a guide plate, and intake and exhaust and stopping thereof are performed simultaneously and reliably. When taking in dry air from the air intake, the air intake is opened and wet dry air is guided to the exhaust air passage by the guide plate. When it is not necessary to take in dry air from the air intake, the air intake is closed by a guide plate, and the dry air is circulated in the dry air passage.
In addition, the opening and closing of the intake port are alternately executed by the guide plate. For example, a heating and drying process in which the drying air heated by the heater is circulated in the drying air path and an exhaust drying process in which the heater is stopped and exhausted from the exhaust air path and sucked from the intake port are alternately performed. In, the inlet is closed, and in the exhaust drying process, the inlet is opened.
In addition, the intake port is opened and closed by a guide plate, and intake and exhaust and stopping thereof are performed simultaneously and reliably. When taking in dry air from the air intake, the air intake is opened and wet dry air is guided to the exhaust air passage by the guide plate. When it is not necessary to take in dry air from the air intake, the air intake is closed by a guide plate, and the dry air is circulated in the dry air passage.
Further, the time for opening the intake port or the angle of the guide plate is determined according to the temperature of the washing water.

The washing and drying machine according to the present invention includes a water tank, a rotating drum that rotates inside the water tank, a drying air path through which the drying air supplied into the water tank and the rotating drum circulates, and the drying air path. In a washer / dryer comprising a disposed blower fan and a heater that heats the drying air blown by the blower fan, the exhaust air passage communicated with the drying air passage and the communicating portion between the exhaust air passage opposed to each other Pivotally supported on the peripheral surface of the drying air passage, and provided with a guide plate for guiding the dry air to the exhaust air passage, formed between the suction side of the blower fan and the guide plate in the dry air passage, An intake port that opens and closes by pivoting the guide plate; an exhaust plate that opens and closes the exhaust air passage; a first drive unit that pivots the guide plate; a second drive unit that drives the exhaust plate; Control unit for controlling driving of first driving unit and second driving unit The control unit turns on the heater in the first half of the laundry drying process, closes the intake port with the guide plate by the first driving unit, and the second driving unit The exhaust air passage is closed, and in the latter half of the drying step, the heater is turned off, the first driving unit opens the intake port with the guide plate, and the dry air is supplied to the exhaust air passage. The exhaust air passage is opened by the second drive unit, and includes a fabric quality detection unit that detects the fabric quality of the laundry, and the control unit is configured by the fabric quality detection unit. Based on the detected cloth quality, a time for opening the air inlet or an angle of the guide plate with respect to the peripheral surface is determined, and the air guide is opened or pivoted to the determined angle for the determined time. It is made to move.
In the present invention, the time for opening the air inlet or the angle of the guide plate is determined according to the quality of the laundry.

  The washing / drying machine according to the present invention is characterized in that a gap is formed between the guide plate and the drying air passage when the intake port is opened.

  In the present invention, even when the intake port is opened, the dry air passage is not completely blocked by the guide plate. A gap is formed between the guide plate and the drying air path, and a part of the drying air is circulated to prevent the temperature in the rotating drum from abruptly decreasing, and the wet drying air is exhausted excessively. Thus, condensation is prevented from occurring in the room where the washing / drying machine is installed.

  The washing / drying machine according to the present invention is characterized in that a filter for removing dust is provided upstream of the guide plate in the drying air passage.

  In the present invention, the dry air from which dust is removed by the filter is guided to the exhaust air passage, and the indoor environment where the washing dryer is installed is prevented from deteriorating.

  In the washing / drying machine according to the present invention, a guide plate is disposed at a portion communicating with the exhaust air passage, and the direction of the guide plate is controlled by the drive unit so that the wet dry air flowing through the dry air passage is generated. It is possible to surely exhaust air from the exhaust passage and to take dry air from the intake port into the dry air passage. Further, when it is not necessary to take in dry air from the air intake, the direction of the guide plate can be made substantially parallel to the drying air passage, and the drying air can be circulated in the drying air passage. Moreover, since it is not necessary to maintain the inside of an exhaust air path at a high pressure, generation | occurrence | production of the noise by a ventilation fan can be suppressed.

1 is a perspective view schematically showing an appearance of a washing / drying machine according to Embodiment 1. FIG. It is a longitudinal cross-sectional view which briefly shows the internal structure of a washing-drying machine. It is a front view which briefly shows the internal structure of a washing dryer. It is a figure which shows the formation aspect of a lead-out duct and an introductory duct. It is an expanded sectional view near the support part of a drum motor. It is a longitudinal cross-sectional view which shows the structure of the exhaust duct vicinity schematically. FIG. 6 is a perspective view schematically showing a configuration near an exhaust duct. It is a longitudinal cross-sectional view which shows schematically the exhaust port of an exhaust duct. It is a block diagram which shows the structure of the control system of a washing / drying machine. It is a flowchart which shows the drying operation control by an operation control part. It is a flowchart which shows the drying operation control by the operation control part of the washing dryer based on Embodiment 2. FIG. It is a flowchart which shows the drying operation control by the operation control part of the washing-drying machine which concerns on Embodiment 3. It is a conceptual diagram which shows an example of LUT memorize | stored in the non-volatile memory. It is a flowchart which shows the drying operation control by the operation control part of the washing-drying machine which concerns on Embodiment 4. It is a conceptual diagram which shows an example of LUT memorize | stored in the non-volatile memory. It is a flowchart which shows the drying operation control by the operation control part of the washing-drying machine which concerns on Embodiment 5. It is a conceptual diagram which shows an example of LUT memorize | stored in the non-volatile memory. It is a flowchart which shows the drying operation control by the operation control part of the washing / drying machine which concerns on Embodiment 6. FIG. It is a conceptual diagram which shows an example of LUT memorize | stored in the non-volatile memory. It is a flowchart which shows the drying operation control by the operation control part of the washing dryer based on Embodiment 7. FIG. 10 is a longitudinal sectional view schematically showing a configuration near an exhaust duct according to an eighth embodiment.

(Embodiment 1)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing / drying machine according to Embodiment 1. FIG. 1 is a perspective view schematically showing the appearance of a washing / drying machine, FIG. 2 is a longitudinal sectional view schematically showing the internal structure of the washing / drying machine, and FIG. 3 is a front view schematically showing the internal structure of the washing / drying machine. It is.

  As shown in FIG. 2, the washing / drying machine includes a water tank 2 and a rotating drum 3 inside an outer casing 1. The water tank 2 is a large-diameter bottomed cylindrical body having an opening 20 in the entire end portion on one side, and is opened by a plurality of support legs 21 (only one is shown) erected on the bottom surface of the outer casing 1. It is elastically supported while maintaining an inclined posture in which the 20 side faces upward and the axis is inclined with respect to a horizontal plane. The support leg 21 has a damper 210 in the middle, and a weight sensor (weight detection unit) 211 is provided below the damper 210. The weight sensor 211 detects the weight of the laundry thrown into the rotating drum 3. Examples of the weight sensor 211 include strain gauge type, piezoelectric type, capacitance type, electromagnetic type, and tuning fork type weight sensors.

  On the front surface of the outer casing 1 (the left side surface in FIG. 2), a laundry inlet 11 is opened at a position facing the opening 20 of the water tub 2 so as to be opened and closed by the lid body 10. The space between the two openings 20 is liquid-tightly sealed by the bellows 12. As shown in FIG. 1, a door opening button 13 is provided in the vicinity of the lid 10 on the front surface of the outer casing 1. The lid 10 is opened by operating the door opening button 13.

  The rotating drum 3 is a bottomed cylindrical body having a slightly smaller diameter than the water tank 2, and the drum motor 4 fixed to the center of the bottom of the water tank 2 with the opening 30 on one side facing the inside of the opening 20 of the water tank 2. It is connected to the end of the output shaft 40 and is rotated coaxially inside the water tank 2 by driving the drum motor 4. A large number of small holes 32 are formed through the entire surface of the peripheral wall of the rotary drum 3, and a plurality of baffles 33 extending in the axial direction are provided on the inner surface of the peripheral wall so as to be evenly spaced in the peripheral direction. Has been. In FIG. 2, only a part of the small hole 32 and one baffle 33 are shown in order to avoid complication of the drawing.

  In the washing operation of the washing / drying machine configured as described above, the lid 10 is opened, the laundry is put into the rotary drum 3 through the openings 20 and 30 located inside the charging slot 11, and the lid 10 Then, as will be described later, washing water is supplied to the inside of the water tank 2, and then the drum motor 4 is driven to tumbl the rotating drum 3. As described above, the rotating drum 3 includes a large number of small holes 32 and a plurality of baffles 33, and the laundry inside the rotating drum 3 is placed in the washing water that enters the rotating drum 3 through the small holes 32. It is soaked and repeatedly lifted and dropped by the action of the baffle 33. At the time of dropping, it is struck against the inner surface of the rotating drum 3 and washed.

  As shown in FIG. 1, an operation panel (reception unit) 15 including an operation unit for various operations and a display unit for various displays is provided on the front upper portion of the outer casing 1. The operation panel 15 is connected to an operation control unit 8 (see FIG. 2) provided inside the lower part of the outer casing 1. The washing operation described above, the drying operation described later, and the dehydration operation performed between them are a series of processes or individually independent depending on the operation of the operation control unit 8 according to the operation of the operation panel 15. It is executed as a process.

  As shown in FIG. 1, a connection port 50 that can be connected to a water supply source such as water supply is provided on the upper surface of the rear portion of the outer casing 1. As shown in FIG. 2, the connection port 50 is connected to a water supply valve 51 provided inside the outer casing 1. The water supply valve 51 is a multiple solenoid valve having a plurality of water supply outlets, and the first water supply outlet is connected to the upper peripheral surface of the water tank 2 via the main water supply pipe 52. When the water supply valve 51 is switched to the first water supply outlet, the water supply from the water supply source is fed into the water tank 2 through the main water supply pipe 52. In the middle of the main water supply pipe 52, a detergent case can be arranged as is well known, and an appropriate amount of detergent can be introduced together with the water supply.

  The 2nd water supply outlet of the water supply valve 51 is connected to the water supply nozzle 54 mentioned later via the small diameter sub-water supply pipe 53. FIG. The water supply nozzle 54 is opened inside an introduction duct 61 described later. When the water supply valve 51 is switched to the second water supply outlet, the water supply from the water supply source reaches the water supply nozzle 54 via the sub-water supply pipe 53 and is sent into the introduction duct 61.

  The third water supply outlet of the water supply valve 51 is connected to the front lower part of the water tank 2 via the cooling water pipe 55. A concave groove 22 extending in the front-rear direction is formed in the lower peripheral surface of the water tank 2, and a cooling plate 23 is installed so as to cover the upper portion of the concave groove 22. The cooling plate 23 is inclined with the rear portion at the bottom, and includes a plurality of concave portions arranged in parallel on the upper surface. When the water supply valve 51 is switched to the third water supply outlet, the water supplied from the water supply source is sent to the front upper part of the cooling plate 23 through the cooling water pipe 55 and stays in the plurality of recesses sequentially while staying in the plurality of recesses. It is used as cooling water that cools the drying air that flows backward along the upper surface and circulates as described later.

  A drain pipe 24 is connected to the rear end of the concave groove 22. The drain pipe 24 is connected to a cylindrical filter case 25 fixedly supported at the front lower part inside the outer casing 1. Inside the filter case 25 is housed a lint filter that captures foreign matters such as fiber waste. As shown in FIG. 3, the filter case 25 is connected to the circulation pump 120 via a water pipe 123, and the discharge side of the circulation pump 120 communicates with the upper front side of the water tank 2 via a return pipe 121. Has been.

  The filter case 25 is connected to a drain hose 27 laid along the bottom surface of the outer casing 1 via a drain valve 26. As shown in FIG. 3, an air trap 28 is connected to the right side portion of the drain pipe 24. The air trap 28 has an air chamber (not shown). A pressure guiding tube (not shown) extending upward is connected to the air chamber, and a water level sensor (cloth quality detecting unit) 29 is attached to the upper end of the pressure guiding tube.

  When the drain valve 26 is closed, the washing water supplied into the water tank 2 enters the filter case 25 through the drain pipe 24, fills the filter case 25, and then passes through the water pipe 123, the drain pipe 24, and It collects inside the aquarium 2. The washing water is sucked into the circulation pump 120 by driving the circulation pump 120 to be pressurized, and sent to the upper part of the water tank 2 through the return pipe 121, and from the tip of the return pipe 121 to the inside of the rotary drum 3. Water is supplied.

  Air is left in the air chamber of the air trap 28 even after the drain pipe 24 is filled with washing water. The air pressure in the air chamber increases as the level of the washing water accumulated with the filter case 25 as the bottom increases. The water level sensor 29 is a pressure sensor that detects the air pressure in the air chamber that propagates through the pressure guiding tube. The detection signal of the water level sensor 29 is given to the operation control unit 8.

  The drain valve 26 is opened after the washing operation. By this opening, the washing water in the water tank 2 is drained to the drain hose 27 through the drain pipe 24 and the filter case 25. At the time of this drainage, foreign matters such as fiber scraps contained in the wash water are captured and removed by the lint filter in the filter case 25 and are not likely to be discharged to the sewer pipe through the drain hose 27.

  The washing and drying machine further includes a drying air passage through which the drying air supplied into the water tank 2 and the rotating drum 3 flows. The drying air passage has a lead-out duct 60 and an introduction duct 61 that are integrally formed with the water tank 2. FIG. 4 is a diagram showing how the lead-out duct 60 and the introduction duct 61 are formed. This figure shows the state which looked at the bottom of water tank 2 from the front, and the upper and lower sides of the figure correspond to the upper and lower sides of FIG. In addition, although many ribs for strength ensuring are provided in the outer surface of the water tank 2, illustration of these ribs is abbreviate | omitted in FIG.

  As shown in FIG. 4, the lead-out duct 60 has an appropriate length in the circumferential direction including the bottom bottom of the water tank 2 and is provided to rise obliquely upward at one side end. FIG. 4 also shows the concave groove 22 formed on the lower peripheral surface of the water tank 2 as described above, and the cooling plate 23 installed above the concave groove 22. The lower part of the lead-out duct 60 communicates with a lead-out port 62 that opens into the water tank 2 at the rear position of the cooling plate 23. The upper end portion of the lead-out duct 60 communicates with a lead-out pipe 63 that protrudes upward from the upper peripheral surface of the water tank 2.

  The introduction duct 61 includes a circular portion provided at the center of the bottom surface of the water tank 2 and a linear portion that is continuous with one end of the circular portion and rises obliquely upward. The upper end of the straight line portion communicates with an introduction pipe 64 that protrudes upward from the upper peripheral surface of the water tank 2. An output shaft 40 of the drum motor 4 protrudes at the center position of the circular portion, and an introduction port 65 having a circular cross section that is coaxial with the protruding portion and opens toward the inside of the water tank 2 is opened.

  FIG. 5 is an enlarged cross-sectional view of the vicinity of the support portion of the drum motor 4. As shown in part in the figure, the output shaft 40 of the drum motor 4 is rotatably supported by a bearing 41 and protrudes toward the inside of the water tank 2, and the protruding end portion is connected via a connecting bracket 42. The center of the bottom surface of the rotating drum 3 is fixed. A thin sealing plate 66 is clamped and fixed between the connection bracket 42 and the rotary drum 3. On the outer periphery of the sealing plate 66, a flange portion is provided around the introduction port 65 at the end of the introduction duct 61, and an oil seal 67 fitted and fixed to the introduction port 65 is slid on the flange portion. Touching.

  On the bottom surface of the rotary drum 3, a plurality of introduction holes 34 arranged on the outer periphery of the fixed portion of the connection bracket 42 are opened, and these introduction holes 34 are provided at corresponding positions of the sealing plate 66. The communication port 68 communicates with the introduction port 65.

  As shown in FIG. 2, a blower fan 70 for raising dry air is disposed on the upper part of the water tank 2. The suction side of the blower fan 70 is connected to the end of the outlet pipe 63 via a connecting duct (dry air passage) 69. The connection duct 69 is provided with a filter 71 for removing dust. A heater 72 is provided on the discharge side of the blower fan 70, and the blower fan 70 and the heater 72 are unitized. The heater 72 is connected to the end of the introduction pipe 64 through the air supply pipe 79. The connecting duct 69 communicates with an exhaust duct (exhaust air passage) 73 for exhausting dry air.

6 is a longitudinal sectional view schematically showing the configuration near the exhaust duct 73, FIG. 7 is a perspective view schematically showing the configuration near the exhaust duct 73, and FIG. 8 is a longitudinal sectional view schematically showing the exhaust port of the exhaust duct 73. is there. 6 to 8, the front, rear, left, and right directions are shown with arrows. In FIG. 6, the flow of exhaust and intake air is indicated by arrows, and the angle of the guide plate 74 with respect to the lower surface of the connecting duct 69 is indicated by θ.
The exhaust duct 73 communicates between the filter 71 and the blower fan 70 on the upper peripheral surface of the connection duct 69. The exhaust duct 73 has a protruding portion 73b protruding upward from the upper peripheral surface of the connecting duct 69 and an L-shaped portion 73c connected to the protruding portion 73b (see FIGS. 6 and 7). The L-shaped portion 73c is arranged with one end directed to the left and the other end directed to the rear. One end portion of the L-shaped portion 73c is connected to the tip portion of the projecting portion 73b, and the tip portion of the other end portion is widened in the lateral direction (left-right direction).

  An exhaust port 73a is formed at the tip of the other end. Inside the L-shaped portion 73c, three wind direction adjusting ribs 78, 78, 78 extending from the corner portion of the L-shaped portion 73c to the exhaust port 73a are arranged side by side. Each of the wind direction adjusting ribs 78, 78, 78 is curved in an L shape along the L-shaped portion 73c. The left and right wind direction adjusting ribs 78, 78 are along the left and right side surfaces of the L-shaped portion 73 c, and the rear end portions are curved so as to be separated from the central wind direction adjusting rib 78.

  Four air passages are formed by the left and right side surfaces of the three air direction adjusting ribs 78, 78, 78 and the L-shaped portion 73c, and the air passage located on the rightmost side exhausts diagonally to the right and is second from the right. The air path located at the side of the air exhausts slightly diagonally to the right from the rear. The air channel located on the leftmost side exhausts diagonally to the left and the air channel located second from the left exhausts slightly diagonally to the left and behind the rear. The exhaust is dispersed in the lateral direction (left-right direction) by the four air paths.

  As shown in FIG. 8, an exhaust cover 76 is provided at the exhaust port 73 a via a sealing member 77. The exhaust cover 76 is designed with dimensions corresponding to the exhaust port 73a. The sealing member 77 is provided at the peripheral edge of the exhaust port 73a. The sealing member 77 is made of an elastic member (for example, polyurethane, rubber, or other elastomer), and seals the gap between the exhaust cover 76 and the exhaust port 73a. . The exhaust cover 76 has an opening 76b corresponding to the exhaust port 73a. In the opening 76b, a plurality of louvers 76a, 76a,. It is installed side by side. Exhaust gas is discharged upward by the louvers 76a, 76a,.

  On the lower surface of the connection duct 69, an intake port 69 a is opened between the communication point with the exhaust duct 73 and the blower fan 70, and the dry air is guided to the exhaust duct 73 at the communication point with the exhaust duct 73. The guide plate 74 is pivotally supported by a pivot (not shown) that is long in the left-right direction. The guide plate 74 has one edge connected to the pivot and extends toward the intake port 69a. A stepping motor (driving unit) 74 a is provided on the lower surface of the connecting duct 69 that faces the communication point with the exhaust duct 73. An output shaft of a stepping motor 74a is connected to the pivot, and the guide plate 74 pivots up and down by the rotation of the stepping motor 74a. By the pivoting of the guide plate 74, the air inlet 69a is opened or closed.

  As shown in FIG. 6, an exhaust plate 75 that opens or seals the exhaust duct 73 is pivotally supported on a side surface of the projecting portion 73 b by a pivot (not shown) that is long in the front-rear direction. . As shown in FIG. 6, the output shaft of the stepping motor 75a is connected to the pivot, and the exhaust plate 75 pivots up and down by the rotation of the stepping motor 75a. The exhaust duct 73 is opened or closed by pivoting the exhaust plate 75.

  When the blower fan 70 is driven in the dry air passage configured as described above, the dry air is sucked and pressurized from the lead-out duct 60 connected to the suction side, and is introduced into the introduction duct 61 connected to the discharge side. Sent out. The dry air sent into the introduction duct 61 flows from the outer periphery of the water tank 2 toward the center, reaches the introduction port 65, and is introduced into the rotary drum 3 through the communication hole 68 and the introduction hole 34. The drying air introduced into the rotating drum 3 flows out into the water tank 2 through a large number of small holes 32 formed in the peripheral wall, and is led out into the outlet duct 60 through the outlet port 62 formed as described above. The air is sucked into the blower fan 70 again.

  In the drying operation of the washer / dryer, the blower fan 70 is driven, the heater 72 is operated, the drum motor 4 is driven, the rotary drum 3 is repeatedly rotated at a low speed, and the water supply valve 51 is connected to the third water supply outlet. And the cooling water is allowed to flow on the cooling plate 23.

  Inside the drying air passage, the above-described flow of the drying air is generated by driving the blower fan 70. This dry air is heated when passing through the heater 72 and introduced into the rotary drum 3. The laundry inside the rotating drum 3 is repeatedly lifted and dropped by the rotation of the rotating drum 3. The drying air introduced into the rotating drum 3 hits the laundry in the rotating drum 3, deprives the laundry of moisture and flows out into the water tank 2, toward the outlet 62 that opens at the bottom of the bottom of the water tank 2. Flowing.

  The dry air flowing in this manner is cooled in contact with the cooling water flowing on the cooling plate 23, becomes dry air from which the contained water has been condensed and removed, reaches the outlet 62, and is sent out into the outlet duct 60. The condensed and removed water flows on the cooling plate 23 together with the cooling water, reaches the rear end of the cooling plate 23 and flows down into the concave groove 22, passes through the drain pipe 24 and the filter case 25, and drains the hose 27. Drained inside.

  On the other hand, the dry air that has become dry air rises in the outlet duct 60, is sucked into the blower fan 70 through the outlet pipe 63, is pressurized, and is reheated by the heater 72 to become hot air of high temperature and low humidity. Then, it is introduced into the rotary drum 3. As described above, the laundry in the rotating drum 3 is dried by repeating contact with the drying air circulating with cooling and heating.

  The drying operation of the washing dryer is also performed by opening the intake port 69a and the exhaust duct 73, as will be described later. By opening the intake port 69 a and the exhaust duct 73, the dry air that has taken away moisture from the laundry and has flowed into the water tank 2 reaches the outlet 62 that opens at the bottom bottom of the water tank 2, and enters the outlet duct 60. Sent out. The wet dry air sent into the outlet duct 60 is guided to the exhaust duct 73 by the guide plate 74 and exhausted from the exhaust port 73a. Due to the exhaust, the connection duct 69 has a negative pressure, and air outside the connection duct 69 is sucked from the opened intake port 69a. In general, the air outside the connection duct 69 is drier than the air that has taken moisture from the laundry. This air is sucked into the blower fan 70 and pressurized, heated by the heater 72 and introduced into the rotary drum 3 as hot air. As described above, the laundry in the rotating drum 3 is dried by repeatedly contacting with the drying air flowing with heating and exhausting.

  As shown in FIGS. 2 and 4, a water supply nozzle 54 is provided in the middle of the introduction duct 61. A sub-water supply pipe 53 is connected to the water supply nozzle 54, so that water supplied from the water supply source reaches the water supply nozzle 54 through the sub-water supply pipe 53 and is sent from the water supply nozzle 54 into the introduction duct 61. It is configured.

  As described above, water is supplied through the auxiliary water supply pipe 53 by switching the water supply valve 51 to the second water supply outlet. The water supply is performed by operating the blower fan 70 and the heater 72 in the dry air passage at the start of the supply of the washing water, and causing the warm air generated by heating the air generated by the blower fan 70 by the heater 72 to flow into the introduction duct 61. Implement in the state of being. This warm air acts as a conveying air for the washing water fed from the water supply nozzle 54, and the washing water flows in the introduction duct 61 together with the conveying air, reaches the introduction port 65 provided at the end, and communicates with the communication holes 68 and 68. It is fed into the rotary drum 3 through the introduction hole 34.

  Further, the water supply by the auxiliary water supply pipe 53 is performed without operating the blower fan 70 and the heater 72 for the purpose of cleaning the inside of the introduction duct 61. This water supply catches foreign matter (fiber waste etc.) in the introduction duct 61 and flows downward, and is drained into the drainage hose 27 through a drain pipe (not shown) connected to the lower end of the introduction duct 61.

  FIG. 9 is a block diagram showing the configuration of the control system of the washing / drying machine. The operation control unit 8 of the washing / drying machine includes a CPU (Central Processing Unit) 8a, a ROM (Read Only Memory) 8b, a RAM (Random Access Memory) 8c, an input / output interface 8d, a rewritable nonvolatile memory 8e, and a timer 8f. A computer connected via a shared bus. The CPU 8a reads the control program stored in the ROM 8b into the RAM 8c and executes it. The nonvolatile memory 8e is composed of, for example, an EEPROM (Electrically Erasable Programmable Read Only Memory) or an EPROM (Erasable Programmable Read Only Memory), and stores in advance a heating drying time, an exhaust drying time, and the like, which will be described later.

The aforementioned operation panel 15 is connected to the input / output interface 8d. The operation panel 15 is provided with various switches operated by the user, such as a power switch, a start switch for instructing operation start, and a switch for selecting operation details.
Further, the water level sensor 29 and the weight sensor 211 described above are connected to the input / output interface 8d. The detection signal of the water level sensor 29 is given to the CPU 8a via the input / output interface 8d, and the CPU 8a recognizes the water level of the stored water inside the water tank 2 based on the detection signal of the water level sensor 29. The detection signal of the weight sensor 211 is given to the CPU 8a via the input / output interface 8d, and the CPU 8a recognizes the weight of the laundry put into the water tub 2 based on the detection signal of the weight sensor 211. An air temperature sensor (air temperature detection unit) 212 and a water temperature sensor (water temperature detection unit) 213 are connected to the input / output interface 8d. The air temperature sensor 212 detects the air temperature outside the washing / drying machine (for example, the room where the washing / drying machine is installed). The water temperature sensor 213 detects the temperature of the washing water supplied to the water tank 2.

  Further, the input / output interface 8d is connected to the drum motor 4, the water supply valve 51, the drain valve 26, the blower fan 70, the heater 72, and the stepping motors 74a and 75a, and more specifically to these drive circuits. The CPU 8a executes a control program stored in the ROM 8b in accordance with the operation contents of the operation panel 15, and issues operation commands to the drum motor 4, the water supply valve 51, the drain valve 26, the blower fan 70, the heater 72, and the stepping motors 74a and 75a. The washing operation and the drying operation described above, and the dehydration operation are performed.

FIG. 10 is a flowchart showing the drying operation control by the operation control unit 8. In the initial state, the intake port 69 a is closed by the guide plate 74, and the exhaust duct 73 is closed by the exhaust plate 75.
The CPU 8a of the operation control unit 8 determines whether or not the drying process should be started (step S1). When the drying process should not be started (step S1: NO), for example, when the washing, rinsing, and drying processes are executed, when the washing and rinsing operation is not completed, the CPU 8a returns the process to step S1. When the drying process should be started (step S1: YES), the CPU 8a issues an operation command to the blower fan 70 to turn on the blower fan 70 (step S2), and issues an operation command to the heater 72 to turn on the heater 72. (Step S3). At this time, the CPU 8a starts aging by the timer 8f.

  Then, the CPU 8a issues an operation command to the water supply valve 51 and opens the third water supply outlet (step S4). At this time, cooling water is supplied onto the cooling plate 23. Next, the CPU 8a refers to the timer 8f and the nonvolatile memory 8e, and waits until the heating and drying time has elapsed (step S5: NO). Until the heating and drying time elapses, the drying air circulates in the washing / drying machine, and the drying air is dehumidified by the cooling water on the cooling plate 23 and heated by the heater 72.

  When the heat drying time has elapsed (step S5: YES), the CPU 8a issues a stop command to the heater 72 and turns off the heater 72 (step S6). Then, the CPU 8a issues an operation command to the stepping motor 75a, pivots the exhaust plate 75, and opens the exhaust duct 73 (step S7). Next, the CPU 8a issues an operation command to the stepping motor 74a, pivots the guide plate 74, and opens the intake port 69a (step S8). At this time, as shown in FIG. 6, the guide plate 74 pivots upward to maintain an obliquely upward posture, and guides the drying air to the exhaust duct 73. A gap is formed between the front end portion (upper end portion) of the guide plate 74 and the upper side surface of the connecting duct 69.

  Next, the CPU 8a issues an operation command to the water supply valve 51 and closes the third water supply outlet (step S9). Then, the CPU 8a refers to the timer 8f and the nonvolatile memory 8e, and waits until the exhaust gas drying time has elapsed (step S10: NO). At this time, the air (dry air) deprived of moisture from the laundry is in contact with the guide plate 74 and turns upward, flows through the exhaust duct 73, and is exhausted from the exhaust port 73a. Due to the exhaust, the pressure in the connection duct 69 is reduced, and the air outside the connection duct 69 is sucked from the intake port 69a. In general, the air outside the connection duct 69 is drier than the air that has taken moisture from the laundry.

  When the exhaust gas drying time has elapsed (step S10: YES), the CPU 8a issues a stop command to the blower fan 70 and turns off the blower fan 70 (step S11). Then, the CPU 8a issues an operation command to the stepping motor 74a to close the intake port 69a (step S12), and issues an operation command to the stepping motor 75a to close the exhaust duct 73 (step S13).

  In the washing and drying machine according to the first embodiment, in the connecting duct 69, the guide plate 74 is disposed at a portion where the exhaust duct 73 communicates, and the direction of the guide plate 74 is controlled by the stepping motor 75a, thereby connecting the connecting duct 69 and the like. It is possible to reliably exhaust the wet dry air flowing through the exhaust duct 73 and to take the dry air into the dry air passage from the intake port 69a. When it is not necessary to take in dry air from the air intake port 69a, the air intake port 69a is closed by the guide plate 74, and the direction of the guide plate 74 is made substantially parallel to the connecting duct 69 so that dry air can be circulated. . Moreover, since it is not necessary to maintain the inside of the exhaust duct 73 at a high pressure, generation of noise by the blower fan 70 can be suppressed.

  Also, a heating and drying process (steps S2 to S4) in which the drying air heated by the heater 72 is circulated in the drying air path, and an exhaust drying process (step S6) in which the heater is stopped, the exhaust air path is exhausted, and the air is sucked from the intake port. To S9) are alternately performed, and the intake port 69a is closed in the heating and drying process, and the intake port 69a is opened in the exhaust and drying process. The heating drying process is performed in the first half of the drying process where the temperature of the laundry is low, and the exhaust drying process is performed in the second half of the drying process where the temperature of the laundry is high, thereby harmonizing the reduction in power consumption of the heater 72 and efficient drying. Can be achieved.

  Even when the air inlet 69 a is opened, the drying air passage is not completely blocked by the guide plate 74. Since a gap is formed between the guide plate 74 and the connecting duct 69 and a part of the drying air is circulated, it is possible to prevent the temperature in the rotating drum 3 from rapidly decreasing. Further, excessive exhaust of moist air (dry air) can be avoided, and condensation can be prevented from being easily generated in the room where the washing / drying machine is installed.

  Further, since the dry air from which dust is removed by the filter 71 is guided to the exhaust duct 73, it is possible to prevent the indoor environment in which the washing / drying machine is installed from being deteriorated by dust.

  Further, exhaust is dispersed in the lateral direction (left and right direction) by the four air passages formed in the L-shaped portion 73c of the exhaust duct 73, so that condensation occurs on the wall surface even when the washer-dryer is placed close to the wall surface. Hateful. Since the exhaust is discharged into the upper space by the louvers 76a, 76a,..., 76a, dew condensation is less likely to occur than when exhausted into the narrow space just behind.

  Further, when the process proceeds to the exhaust drying process after finishing the heating and drying process (step S5: YES), the exhaust duct 73 is opened (step S7), and then the intake port 69a is opened (step S8). The wind pressure to the plate 74 can be reduced.

  A gap is formed between the leading end of the guide plate 74 and the connecting duct 69 by controlling the driving of the stepping motor 74a. However, a restricting portion for restricting the movement of the guide plate 74 is provided in the connecting duct 69. A gap may be formed. It is sufficient that a gap is formed between the guide plate 74 and the connecting duct 69, and the position is not limited. For example, a gap may be formed between the left and right edges of the guide plate 74 and the connecting duct 69. Further, a PCI (Plasma Cluster Ion) unit may be provided in the exhaust duct 73 to exhaust the dry air together with the PCI. For example, a PCI unit is mounted on the upper side surface of the L-shaped portion 73c. The indoor environment where the washing / drying machine is installed can be improved by PCI.

(Embodiment 2)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing / drying machine according to a second embodiment. FIG. 11 is a flowchart showing the drying operation control by the operation control unit 8. In the initial state, the intake port 69 a is closed by the guide plate 74, and the exhaust duct 73 is closed by the exhaust plate 75. The non-volatile memory 8e stores in advance the total operation time (total drying time) in the drying process.
The CPU 8a of the operation control unit 8 determines whether or not the drying process should be started (step S21). When the drying process should not be started (step S21: NO), for example, when the washing, rinsing and drying processes are executed, when the washing and rinsing operation is not completed, the CPU 8a returns the process to step S21. When the drying process should be started (step S21: YES), the CPU 8a issues an operation command to the blower fan 70 to turn on the blower fan 70 (step S22), and issues an operation command to the heater 72 to turn on the heater 72. (Step S23). At this time, the CPU 8a starts aging by the timer 8f.

  Then, the CPU 8a issues an operation command to the water supply valve 51 and opens the third water supply outlet (step S24). At this time, cooling water is supplied onto the cooling plate 23. Next, the CPU 8a refers to the timer 8f and the nonvolatile memory 8e, and waits until the heating and drying time has elapsed (step S25: NO). Until the heating and drying time elapses, the drying air circulates in the washing / drying machine, and the drying air is dehumidified by the cooling water on the cooling plate 23 and heated by the heater 72.

  When the heating and drying time has elapsed (step S25: YES), the CPU 8a issues a stop command to the heater 72 and turns off the heater 72 (step S26). Then, the CPU 8a issues an operation command to the stepping motor 75a, pivots the exhaust plate 75, and opens the exhaust duct 73 (step S27). Next, the CPU 8a issues an operation command to the stepping motor 74a, pivots the guide plate 74, and opens the intake port 69a (step S28). At this time, as shown in FIG. 6, the guide plate 74 pivots upward to maintain an obliquely upward posture, and guides the drying air to the exhaust duct 73. A gap is formed between the front end portion (upper end portion) of the guide plate 74 and the upper side surface of the connecting duct 69.

  Next, the CPU 8a issues an operation command to the water supply valve 51 and closes the third water supply outlet (step S29). Then, the CPU 8a refers to the timer 8f and the nonvolatile memory 8e, and waits until the exhaust gas drying time elapses (step S30: NO). At this time, the air deprived of moisture from the laundry (dry air) contacts the guide plate 74 and turns upward, flows through the exhaust duct 73, and is exhausted from the exhaust port 73a. Due to the exhaust, the pressure in the connection duct 69 is reduced, and the air outside the connection duct 69 is sucked from the intake port 69a. In general, the air outside the connection duct 69 is drier than the air that has taken moisture from the laundry.

  When the exhaust gas drying time has elapsed (step S30: YES), the CPU 8a issues an operation command to the stepping motor 74a to close the intake port 69a (step S31), and issues an operation command to the stepping motor 75a to cause the exhaust duct 73 to pass. Close (step S32). Then, the CPU 8a refers to the timer 8f and the nonvolatile memory 8e and determines whether or not the total drying time has elapsed (step S33).

  When the total drying time has not elapsed (step S33: NO), the CPU 8a returns the process to step S23. When the total drying time has elapsed (step S33: YES), the CPU 8a issues a stop command to the blower fan 70 and turns off the blower fan 70 (step S34).

  In the washer / dryer according to the second embodiment, opening and closing of the intake port 69a is alternately performed by the guide plate 74. A heating and drying process (steps S22 to S24) in which the drying air heated by the heater 72 is circulated in the drying air path, and an exhaust drying process (steps S26 to S24) in which the heater is stopped, the exhaust air is exhausted, and the air is sucked from the intake port. S29) is alternately performed until the total drying time is completed. The intake port 69a is closed in the heat drying process, and the intake port 69a is opened in the exhaust drying process. By alternately performing the heat drying step and the exhaust drying step, it is possible to avoid a rapid decrease in the temperature in the water tank 2 and to achieve harmony between the reduction in power consumption of the heater 72 and efficient drying. .

  In the case of shifting from the heat drying process to the exhaust drying process, since the air intake port 69a is opened after the exhaust duct 73 is opened (steps S27 and S28), the wind pressure acting on the guide plate 74 can be reduced. On the other hand, when shifting from the exhaust drying process to the heating drying process, the exhaust duct 73 is closed after the intake port 69a is closed (steps S31 and S32), so that the guide plate 74 is compared with the case where the exhaust duct 73 is closed first. The wind pressure acting on the can be reduced.

  Among the configurations of the washing and drying machine according to the second embodiment, configurations similar to those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

(Embodiment 3)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing / drying machine according to a third embodiment. FIG. 12 is a flowchart showing the drying operation control by the operation control unit 8, and FIG. 13 is a conceptual diagram showing an example of the LUT stored in the nonvolatile memory 8e.
In the initial state, the intake port 69 a is closed by the guide plate 74, and the exhaust duct 73 is closed by the exhaust plate 75. The operation control unit 8 detects the weight of the laundry by the weight sensor 211 before executing the drying operation control (for example, at the start of the washing operation), and stores it in the nonvolatile memory 8e in advance.

  Further, as shown in FIG. 13, the nonvolatile memory 8 e includes the weight of the laundry, the time of the heat drying process (heat drying time), the time of the exhaust air drying process (exhaust air drying time), and the lower surface of the connection duct 69. A LUT (Look Up Table) indicating the relationship with the angle θ of the guide plate 74 (see FIG. 6) is stored. The heat drying time in the LUT has a relationship of T1 ≦ T2 ≦ T3, the exhaust gas drying time has a relationship of K1 ≦ K2 ≦ K3, and the angle θ has a relationship of θ1 ≦ θ2 ≦ θ3.

  The CPU 8a of the operation control unit 8 determines whether or not the drying process should be started (step S41). When the drying process should not be started (step S41: NO), for example, when the washing, rinsing and drying processes are executed, when the washing and rinsing operation is not completed, the CPU 8a returns the process to step S41. When the drying process is to be started (step S41: YES), the CPU 8a accesses the nonvolatile memory 8e, refers to the weight of the laundry (step S42), and refers to the LUT and performs heating corresponding to the weight of the laundry. A drying time is determined (step S43). Further, an exhaust drying time corresponding to the weight is determined (step S44), and an angle θ corresponding to the weight is determined (step S45).

Next, the CPU 8a issues an operation command to the blower fan 70 to turn on the blower fan 70 (step S46), issues an operation command to the heater 72, and turns on the heater 72 (step S47). At this time, the CPU 8a starts aging by the timer 8f.
Then, the CPU 8a issues an operation command to the water supply valve 51 and opens the third water supply outlet (step S48). At this time, cooling water is supplied onto the cooling plate 23. Next, the CPU 8a refers to the timer 8f and waits until the determined heating and drying times T1 to T3 have elapsed (step S49: NO). Until the heat drying time T1 to T3 elapses, the drying air circulates inside the washing dryer, and the drying air is dehumidified by the cooling water on the cooling plate 23 and heated by the heater 72.

  When the heating and drying times T1 to T3 have elapsed (step S49: YES), the CPU 8a issues a stop command to the heater 72 and turns off the heater 72 (step S50). Then, the CPU 8a issues an operation command to the stepping motor 75a, pivots the exhaust plate 75, and opens the exhaust duct 73 (step S51). Next, the CPU 8a issues an operation command to the stepping motor 74a, pivots the guide plate 74 until the determined angles θ1 to θ3 are reached, and opens the intake port 69a (step S52). The CPU 8a gives the stepping motor 74a a number of pulse waves corresponding to the angles θ1 to θ3. At this time, as shown in FIG. 6, the guide plate 74 pivots upward to maintain an obliquely upward posture, and guides the drying air to the exhaust duct 73. A gap is formed between the front end portion (upper end portion) of the guide plate 74 and the upper side surface of the connecting duct 69.

  Next, the CPU 8a issues an operation command to the water supply valve 51 and closes the third water supply outlet (step S53). Then, the CPU 8a refers to the timer 8f and waits until the determined exhaust drying times K1 to K3 have elapsed (step S54: NO). At this time, the air deprived of moisture from the laundry (dry air) contacts the guide plate 74 and turns upward, flows through the exhaust duct 73, and is exhausted from the exhaust port 73a. Due to the exhaust, the pressure in the connection duct 69 is reduced, and the air outside the connection duct 69 is sucked from the intake port 69a. In general, the air outside the connection duct 69 is drier than the air that has taken moisture from the laundry.

  When the exhaust gas drying times K1 to K3 have elapsed (step S54: YES), the CPU 8a issues a stop command to the blower fan 70 and turns off the blower fan 70 (step S55). Then, the CPU 8a issues an operation command to the stepping motor 74a to close the intake port 69a (step S56), and issues an operation command to the stepping motor 75a to close the exhaust duct 73 (step S57).

  In the washing and drying machine according to the third embodiment, the time for opening the intake port 69a (exhaust drying time T1 to T3) and the angle θ of the guide plate (angles θ1 to θ3) are set according to the weight of the laundry. Therefore, it is possible to dry the laundry without excess and deficiency, and to avoid excessive heating of the laundry and insufficient drying of the laundry.

  In the third embodiment, the weight of the laundry detected by the weight sensor 211 is stored in advance in the nonvolatile memory 8e. At the start of the drying operation, the weight of the laundry is detected by the weight sensor 211, The detected value may be used for drying operation control.

  Among the configurations of the washing and drying machine according to the third embodiment, the same reference numerals are given to the same configurations as those in the first or second embodiment, and the detailed description thereof is omitted.

(Embodiment 4)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing / drying machine according to a fourth embodiment. FIG. 14 is a flowchart showing the drying operation control by the operation control unit 8, and FIG. 15 is a conceptual diagram showing an example of the LUT stored in the nonvolatile memory 8e. In the initial state, the intake port 69 a is closed by the guide plate 74, and the exhaust duct 73 is closed by the exhaust plate 75. The operation control unit 8 accepts an operation course through the operation panel 15, and stores the accepted operation course in the nonvolatile memory 8e.

  As shown in FIG. 15, the non-volatile memory 8 e includes an operation course received by the operation panel 15, a time of a heating drying process (heating drying time), a time of an exhaust drying process (exhaust drying time), and a connecting duct 69. An LUT indicating the relationship with the angle θ (see FIG. 6) of the guide plate 74 with respect to the lower side surface is stored. The heat drying time in the LUT has a relationship of T1 ≦ T2 ≦ T3, the exhaust gas drying time has a relationship of K1 ≦ K2 ≦ K3, and the angle θ has a relationship of θ1 ≦ θ2 ≦ θ3.

  The CPU 8a of the operation control unit 8 determines whether or not the drying process should be started (step S61). When the drying process should not be started (step S61: NO), for example, when the washing, rinsing and drying processes are executed, when the washing and rinsing operation is not completed, the CPU 8a returns the process to step S61. When the drying process is to be started (step S61: YES), the CPU 8a accesses the nonvolatile memory 8e and refers to the operation course (soft course, blanket course or standard course) received on the operation panel 15 (step S62). ) By referring to the LUT, the heating and drying times T1 to T3 corresponding to the operation course are determined (step S63). Further, exhaust drying times K1 to K3 corresponding to the operation course are determined (step S64), and angles θ1 to θ3 corresponding to the operation course are determined (step S65).

Next, the CPU 8a issues an operation command to the blower fan 70 to turn on the blower fan 70 (step S66), issues an operation command to the heater 72, and turns on the heater 72 (step S67). At this time, the CPU 8a starts aging by the timer 8f.
Then, the CPU 8a issues an operation command to the water supply valve 51 and opens the third water supply outlet (step S68). At this time, cooling water is supplied onto the cooling plate 23. Next, the CPU 8a refers to the timer 8f and waits until the determined heating and drying times T1 to T3 have elapsed (step S69: NO). Until the heat drying time T1 to T3 elapses, the drying air circulates inside the washing dryer, and the drying air is dehumidified by the cooling water on the cooling plate 23 and heated by the heater 72.

  When the heating and drying times T1 to T3 have elapsed (step S69: YES), the CPU 8a issues a stop command to the heater 72 and turns off the heater 72 (step S70). Then, the CPU 8a issues an operation command to the stepping motor 75a, pivots the exhaust plate 75, and opens the exhaust duct 73 (step S71). Next, the CPU 8a issues an operation command to the stepping motor 74a, pivots the guide plate 74 until the determined angles θ1 to θ3 are reached, and opens the intake port 69a (step S72). The CPU 8a gives the stepping motor 74a a number of pulse waves corresponding to the angles θ1 to θ3. At this time, as shown in FIG. 6, the guide plate 74 pivots upward to maintain an obliquely upward posture, and guides the drying air to the exhaust duct 73. A gap is formed between the front end portion (upper end portion) of the guide plate 74 and the upper side surface of the connecting duct 69.

  Next, the CPU 8a issues an operation command to the water supply valve 51 and closes the third water supply outlet (step S73). Then, the CPU 8a refers to the timer 8f and waits until the determined exhaust gas drying times K1 to K3 have elapsed (step S74: NO). At this time, the air deprived of moisture from the laundry (dry air) contacts the guide plate 74 and turns upward, flows through the exhaust duct 73, and is exhausted from the exhaust port 73a. Due to the exhaust, the pressure in the connection duct 69 is reduced, and the air outside the connection duct 69 is sucked from the intake port 69a. In general, the air outside the connection duct 69 is drier than the air that has taken moisture from the laundry.

  When the exhaust drying times K1 to K3 have elapsed (step S74: YES), the CPU 8a issues a stop command to the blower fan 70 and turns off the blower fan 70 (step S75). Then, the CPU 8a issues an operation command to the stepping motor 74a to close the intake port 69a (step S76), and issues an operation command to the stepping motor 75a to close the exhaust duct 73 (step S77).

  The soft course is a course that assumes a towel with a pile. When the soft course is received, the operation control unit 8 sets the angle θ to the minimum (θ1), raises the temperature in the rotating drum 3, raises the pile, and finishes the laundry softly. Further, the heating drying time and the exhaust drying time are set to the shortest (T1, K1) to prevent the laundry from being heated excessively.

  The blanket course is a course that assumes a laundry having hair such as a blanket. The operation control unit 8 sets the angle θ to a medium level (θ2), slightly raises the temperature in the rotary drum 3 and sucks dry air to increase the drying efficiency. In addition, the heating drying time and the exhaust drying time are set to medium (T2, K2) to dry the laundry without excess and deficiency, thereby preventing the laundry from being damaged by excessive heating.

  When the standard course is accepted, the operation control unit 8 sets the angle θ to the maximum (θ3), increases the exhaust amount of wet dry air, and increases the intake amount of dry air to promote drying. Let Further, the heating drying time and the exhaust drying time are set to the longest (T3, K3), and the heating drying with the warm air of the heater is sufficiently performed, and the drying with the dried air is sufficiently performed to surely dry the laundry.

  Among the configurations of the washing and drying machine according to the fourth embodiment, the same reference numerals are given to the same configurations as those of the first to third embodiments, and detailed description thereof is omitted.

(Embodiment 5)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing / drying machine according to a fifth embodiment. FIG. 16 is a flowchart showing the drying operation control by the operation control unit 8, and FIG. 17 is a conceptual diagram showing an example of the LUT stored in the nonvolatile memory 8e. In the initial state, the intake port 69 a is closed by the guide plate 74, and the exhaust duct 73 is closed by the exhaust plate 75.

  As shown in FIG. 17, the non-volatile memory 8e includes the temperature detected by the temperature sensor 212, the time of the heating and drying process (heating and drying time), the time of the exhaust and drying process (exhaust and drying time), and the connection duct 69. An LUT indicating the relationship with the angle θ (see FIG. 6) of the guide plate 74 with respect to the side surface is stored. The heat drying time in the LUT has a relationship of T1 ≦ T2 ≦ T3, the exhaust gas drying time has a relationship of K1 ≦ K2 ≦ K3, and the angle θ has a relationship of θ1 ≦ θ2 ≦ θ3.

  The CPU 8a of the operation control unit 8 determines whether or not the drying process should be started (step S81). When the drying process should not be started (step S81: NO), for example, when the washing, rinsing and drying processes are executed, when the washing and rinsing operation is not completed, the CPU 8a returns the process to step S81. When the drying process should be started (step S81: YES), the CPU 8a takes in the detected value of the air temperature from the air temperature sensor 212 (step S82), and determines the heating and drying times T1 to T3 corresponding to the detected air temperature (step S83). . Further, exhaust drying times K1 to K3 corresponding to the detected temperature are determined (step S84), and angles θ1 to θ3 corresponding to the detected temperature are determined (step S85).

Next, the CPU 8a issues an operation command to the blower fan 70 to turn on the blower fan 70 (step S86), issues an operation command to the heater 72, and turns on the heater 72 (step S87). At this time, the CPU 8a starts aging by the timer 8f.
Then, the CPU 8a issues an operation command to the water supply valve 51 and opens the third water supply outlet (step S88). At this time, cooling water is supplied onto the cooling plate 23. Next, the CPU 8a refers to the timer 8f and waits until the determined heating and drying times T1 to T3 have elapsed (step S89: NO). Until the heat drying time T1 to T3 elapses, the drying air circulates inside the washing dryer, and the drying air is dehumidified by the cooling water on the cooling plate 23 and heated by the heater 72.

  When the heating and drying times T1 to T3 have elapsed (step S89: YES), the CPU 8a issues a stop command to the heater 72 and turns off the heater 72 (step S90). Then, the CPU 8a issues an operation command to the stepping motor 75a, pivots the exhaust plate 75, and opens the exhaust duct 73 (step S91). Next, the CPU 8a issues an operation command to the stepping motor 74a, pivots the guide plate 74 until the determined angles θ1 to θ3 are reached, and opens the intake port 69a (step S92). The CPU 8a gives the stepping motor 74a a number of pulse waves corresponding to the angles θ1 to θ3. At this time, as shown in FIG. 6, the guide plate 74 pivots upward to maintain an obliquely upward posture, and guides the drying air to the exhaust duct 73. A gap is formed between the front end portion (upper end portion) of the guide plate 74 and the upper side surface of the connecting duct 69.

  Next, the CPU 8a issues an operation command to the water supply valve 51 and closes the third water supply outlet (step S93). Then, the CPU 8a refers to the timer 8f and waits until the determined exhaust drying times K1 to K3 have elapsed (step S94: NO). At this time, the air (dry air) deprived of moisture from the laundry is in contact with the guide plate 74 and turns upward, flows through the exhaust duct 73, and is exhausted from the exhaust port 73a. Due to the exhaust, the pressure in the connection duct 69 is reduced, and the air outside the connection duct 69 is sucked from the intake port 69a. In general, the air outside the connection duct 69 is drier than the air that has taken moisture from the laundry.

  When the exhaust gas drying times K1 to K3 have elapsed (step S94: YES), the CPU 8a issues a stop command to the blower fan 70 and turns off the blower fan 70 (step S95). Then, the CPU 8a issues an operation command to the stepping motor 74a to close the intake port 69a (step S96), and issues an operation command to the stepping motor 75a to close the exhaust duct 73 (step S97).

When the temperature is less than 10 ° C., the operation control unit 8 sets the angle θ to the minimum (θ1), and avoids a rapid decrease in the temperature in the rotating drum 3.
Moreover, the heat drying time and the exhaust drying time are set to the longest (T3, K3), and the laundry is surely dried even in winter.

  When the temperature is 10 ° C. or higher and lower than 25 ° C., the operation control unit 8 sets the angle θ to a medium level (θ2), slightly increases the temperature in the rotating drum 3 and promotes drying. Further, the heating drying time and the exhaust drying time are set to medium (T2, K2), and the laundry is dried without excess or deficiency in the spring and autumn seasons.

  When the temperature is 25 ° C. or higher, the operation control unit 8 sets the angle θ to the maximum (θ3), increases the amount of inhaled dry air, and promotes drying. In addition, the heat drying time and the exhaust drying time are set to the shortest (T1, K1), and in the summer, the laundry is reliably dried in a short time to improve the drying efficiency and promote the reduction of power consumption.

  Among the configurations of the washing and drying machine according to the fifth embodiment, the same reference numerals are given to the same configurations as those in the first to fourth embodiments, and detailed description thereof is omitted.

(Embodiment 6)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing / drying machine according to a sixth embodiment. FIG. 18 is a flowchart showing the drying operation control by the operation control unit 8, and FIG. 19 is a conceptual diagram showing an example of the LUT stored in the nonvolatile memory 8e. In the initial state, the intake port 69 a is closed by the guide plate 74, and the exhaust duct 73 is closed by the exhaust plate 75.

  As shown in FIG. 19, the nonvolatile memory 8 e includes a water temperature detected by the water temperature sensor 213, a heating drying process time (heating drying time), an exhaust drying process time (exhaust drying time), and a connection duct 69. An LUT indicating the relationship with the angle θ (see FIG. 6) of the guide plate 74 with respect to the side surface is stored. The heat drying time in the LUT has a relationship of T1 ≦ T2 ≦ T3, the exhaust gas drying time has a relationship of K1 ≦ K2 ≦ K3, and the angle θ has a relationship of θ1 ≦ θ2 ≦ θ3.

  The CPU 8a of the operation control unit 8 determines whether or not the drying process should be started (step S101). When the drying process should not be started (step S101: NO), for example, when the washing, rinsing, and drying processes are executed, when the washing and rinsing operation is not completed, the CPU 8a returns the process to step S101. When the drying process is to be started (step S101: YES), the CPU 8a takes in the detected value of the water temperature from the water temperature sensor 213 (step S102) and determines the heating and drying times T1 to T3 corresponding to the detected water temperature (step S103). . Further, exhaust drying times K1 to K3 corresponding to the detected water temperature are determined (step S104), and angles θ1 to θ3 corresponding to the detected water temperature are determined (step S105).

Next, the CPU 8a issues an operation command to the blower fan 70 to turn on the blower fan 70 (step S106), issues an operation command to the heater 72, and turns on the heater 72 (step S107). At this time, the CPU 8a starts aging by the timer 8f.
Then, the CPU 8a issues an operation command to the water supply valve 51 and opens the third water supply outlet (step S108). At this time, cooling water is supplied onto the cooling plate 23. Next, the CPU 8a refers to the timer 8f and waits until the determined heating and drying times T1 to T3 have elapsed (step S109: NO). Until the heat drying time T1 to T3 elapses, the drying air circulates inside the washing dryer, and the drying air is dehumidified by the cooling water on the cooling plate 23 and heated by the heater 72.

  When the heating and drying times T1 to T3 have elapsed (step S109: YES), the CPU 8a issues a stop command to the heater 72 and turns off the heater 72 (step S110). Then, the CPU 8a issues an operation command to the stepping motor 75a, pivots the exhaust plate 75, and opens the exhaust duct 73 (step S111). Next, the CPU 8a issues an operation command to the stepping motor 74a, pivots the guide plate 74 until the determined angles θ1 to θ3 are reached, and opens the intake port 69a (step S112). The CPU 8a gives the stepping motor 74a a number of pulse waves corresponding to the angles θ1 to θ3. At this time, as shown in FIG. 6, the guide plate 74 pivots upward to maintain an obliquely upward posture, and guides the drying air to the exhaust duct 73. A gap is formed between the front end portion (upper end portion) of the guide plate 74 and the upper side surface of the connecting duct 69.

  Next, the CPU 8a issues an operation command to the water supply valve 51 and closes the third water supply outlet (step S113). Then, the CPU 8a refers to the timer 8f and stands by until the determined exhaust drying times K1 to K3 have elapsed (step S114: NO). At this time, the air (dry air) deprived of moisture from the laundry is in contact with the guide plate 74 and turns upward, flows through the exhaust duct 73, and is exhausted from the exhaust port 73a. Due to the exhaust, the pressure in the connection duct 69 is reduced, and the air outside the connection duct 69 is sucked from the intake port 69a. In general, the air outside the connection duct 69 is drier than the air that has taken moisture from the laundry.

  When the exhaust drying times K1 to K3 have elapsed (step S114: YES), the CPU 8a issues a stop command to the blower fan 70 and turns off the blower fan 70 (step S115). Then, the CPU 8a issues an operation command to the stepping motor 74a to close the intake port 69a (step S116), and issues an operation command to the stepping motor 75a to close the exhaust duct 73 (step S117).

When the water temperature is lower than 15 ° C., the operation control unit 8 sets the angle θ to the minimum (θ1), and avoids the temperature in the rotating drum 3 from rapidly decreasing.
Also, the heat drying time and the exhaust drying time are set to the longest (T3, K3), and the laundry is reliably dried even when the rotating drum 3 and the water tub 2 are at a low temperature by the wash water.

  When the water temperature is 15 ° C. or higher and lower than 30 ° C., the operation control unit 8 sets the angle θ to a medium level (θ 2), slightly increases the temperature in the rotating drum 3, and promotes drying. The heating drying time and the exhaust drying time are set to medium (T2, K2), and the laundry is dried without excess or deficiency.

  When the water temperature is 30 ° C. or higher, the operation control unit 8 sets the angle θ to the maximum (θ3) and increases the amount of dry air sucked to promote drying. In addition, the drying time and heat drying time are set to the shortest (T1, K1), and in the rotating drum 3 and the water tank 2 heated to high temperature by the washing water, the laundry is reliably dried in a short time to improve the drying efficiency. Promote reduction of power consumption.

  Among the configurations of the washing and drying machine according to the sixth embodiment, the same reference numerals are given to the same configurations as those in the first to fifth embodiments, and the detailed description thereof is omitted.

(Embodiment 7)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing / drying machine according to a seventh embodiment. FIG. 20 is a flowchart showing the drying operation control by the operation control unit 8. In the initial state, the intake port 69 a is closed by the guide plate 74, and the exhaust duct 73 is closed by the exhaust plate 75. The operation control unit 8 supplies the washing water to the aquarium 2 before executing the drying operation control (for example, at the start of the washing operation), and whether the laundry contains a lot of hydrophobic fibers based on the water absorption of the laundry. The determination result is stored in advance in the nonvolatile memory 8e. Other known methods may be used to determine whether the laundry contains a lot of hydrophobic fibers. In the nonvolatile memory 8e, a predetermined time described later is stored in advance.

  The CPU 8a of the operation control unit 8 determines whether or not the drying process should be started (step S121). When the drying process should not be started (step S121: NO), for example, when the washing, rinsing and drying processes are executed, when the washing and rinsing operation is not completed, the CPU 8a returns the process to step S121. When the drying process should be started (step S121: YES), the CPU 8a accesses the nonvolatile memory 8e to determine whether the laundry contains a lot of hydrophobic fibers (step S122). When the laundry does not contain a lot of hydrophobic fibers (step S122: NO), the CPU 8a ends the process, and executes the above-described heating drying process and exhaust drying process.

  When the laundry contains a lot of hydrophobic fibers (step S122: YES), an operation command is issued to the blower fan 70 to turn on the blower fan 70 (step S123), and an operation command is issued to the heater 72 to turn on the heater 72. (Step S124). At this time, the CPU 8a starts aging by the timer 8f. The CPU 8a issues an operation command to the stepping motor 75a to open the exhaust duct 73 (step S125), and issues an operation command to the stepping motor 74a to open the intake port 69a (step S126). The CPU 8a issues an operation command to the water supply valve 51 and closes the third water supply outlet (step S127). That is, the dehumidification of the drying air with the cooling water is not performed.

  Next, the CPU 8a refers to the timer 8f and waits until a predetermined time has elapsed (step S128: NO). When the predetermined time has elapsed (step S128: YES), a stop command is issued to the heater 72 to turn off the heater 72 (step S129). Then, the CPU 8a refers to the timer 8f and waits until a predetermined time elapses (step S130: NO). When the predetermined time has elapsed (step S130: YES), the CPU 8a issues a stop command to the blower fan 70 to turn off the blower fan 70 (step S131), issues an operation command to the stepping motor 74a, and closes the intake port 69a. Then, an operation command is issued to the stepping motor 75a to close the exhaust duct 73 (step S133).

  In the laundry dryer according to the seventh embodiment, when drying laundry containing a large amount of hydrophobic fibers, the outside air is sucked from the air inlet 69a, heated by the heater 72, and dried in the rotary drum 3 as dry air. Supply. Then, the drying air deprived of moisture from the laundry is discharged from the exhaust duct 73. In the case of a laundry containing a large amount of hydrophobic fibers, it can be reliably dried in a short time with a dry and heated drying air without raising the temperature of the water tank 2 to a high temperature. Further, the heater 72 can be turned off after a predetermined time has elapsed to reduce power consumption. In addition, after receiving a driving course with the operation panel 15, you may determine whether a laundry contains many hydrophobic fibers.

  Among the configurations of the washing and drying machine according to the seventh embodiment, the same reference numerals are given to the same configurations as those in the first to sixth embodiments, and the detailed description thereof is omitted.

(Embodiment 8)
Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing and drying machine according to an eighth embodiment. FIG. 21 is a longitudinal sectional view schematically showing the configuration in the vicinity of the exhaust duct 73 according to the eighth embodiment.
The guide plate 74 is connected to the rotation shaft of the stepping motor 74a via a pivot shaft (not shown) and extends to the filter 71 side. A recess 69b that accommodates the guide plate 74 is formed on the lower surface of the connecting duct 69 at a position facing the guide plate 74, and a restriction that restricts the movement of the guide plate 74 closer to the intake port 69a than the guide plate 74 is. A portion 170 is provided. The position of the restricting portion 170 may be a position that can restrict the movement of the guide plate 74. For example, the restricting portion 170 may be provided on the upper side surface or the left and right side surfaces of the connection duct 69.

  Due to the rotation of the stepping motor 74a, the guide plate 74 pivots up and down between the recess 69b and the restricting portion 170. Even when the wind pressure acts on the guide plate 74 and pushes up the guide plate 74, the pivoting of the guide plate 74 is restricted by contacting the restricting portion 170. When abutting against the restricting portion 170, a gap is formed between the leading end portion of the guide plate 74 and the upper side surface of the connecting duct 69. Regardless of the number of pulses applied to the stepping motor 74a, the upward pivoting of the guide plate 74 can be mechanically restricted. In addition, by accommodating the guide plate 74 in the recess 69b, the drying air can be smoothly circulated.

  Among the configurations of the washing and drying machine according to the eighth embodiment, the same reference numerals are given to the same configurations as those in the first to seventh embodiments, and detailed description thereof is omitted.

  The embodiment described above is an exemplification of the present invention, and the present invention can be implemented in various modified forms within the scope defined by the matters described in the claims and the description of the claims. it can.

1 Outer casing 2 Water tank 3 Rotating drum 60 Outlet duct (dry air passage)
61 Introduction duct (dry air passage)
69 Connection duct (dry air passage)
70 Blower fan 73 Exhaust duct (exhaust air passage)
74 Guide plate 69a Air intake port 74a Stepping motor (drive unit)
8 Operation control unit (control unit)
211 Weight sensor (weight detector)
212 Air temperature sensor (temperature detector)
213 Water temperature sensor (water temperature detector)
29 Water level sensor (cloth quality detector)
15 Operation panel (reception part)
71 Filter

Claims (4)

A water tank, a rotating drum that rotates inside the water tank, a drying air path through which the drying air supplied into the water tank and the rotating drum circulates, a blower fan disposed in the drying air path, and the blower fan In the washing and drying machine comprising a heater for heating the drying air blown by
An exhaust air passage communicating with the dry air passage;
Pivotally supported on the peripheral surface of the drying air passage facing the exhaust air passage, and a guide plate for guiding the dry air to the exhaust air passage,
An intake port formed between the suction side of the blower fan and the guide plate in the dry air passage, and opened and closed by pivoting of the guide plate;
An exhaust plate for opening and closing the exhaust air passage;
A first drive for pivoting the guide plate;
A second driving unit for driving the exhaust plate;
A control unit for controlling the driving of the first driving unit and the second driving unit,
The controller is
In the first half of the laundry drying process, the heater is turned on, the intake port is closed by the guide plate by the first drive unit, and the exhaust air path is closed by the second drive unit. And
In the latter half of the drying step, the heater is turned off, the first drive unit opens the intake port with the guide plate, and guides dry air to the exhaust air path, and the second drive unit Ri Citea so as to open the exhaust air duct,
It has a water temperature detector that detects the temperature of the washing water,
The control unit determines a time for opening the intake port or an angle of the guide plate with respect to the peripheral surface based on the water temperature detected by the water temperature detection unit, and opens the intake port for the determined time. or washer-dryer, wherein Citea Rukoto so as to pivot the guide plate to the determined angle. A water tank, a rotating drum that rotates inside the water tank, a drying air path through which the drying air supplied into the water tank and the rotating drum circulates, a blower fan disposed in the drying air path, and the blower fan In the washing and drying machine comprising a heater for heating the drying air blown by
An exhaust air passage communicating with the dry air passage;
Pivotally supported on the peripheral surface of the drying air passage facing the exhaust air passage, and a guide plate for guiding the dry air to the exhaust air passage,
An intake port formed between the suction side of the blower fan and the guide plate in the dry air passage, and opened and closed by pivoting of the guide plate;
An exhaust plate for opening and closing the exhaust air passage;
A first drive for pivoting the guide plate;
A second driving unit for driving the exhaust plate;
A control unit for controlling the driving of the first driving unit and the second driving unit,
The controller is
In the first half of the laundry drying process, the heater is turned on, the intake port is closed by the guide plate by the first drive unit, and the exhaust air path is closed by the second drive unit. And
In the latter half of the drying step, the heater is turned off, the first drive unit opens the intake port with the guide plate, and guides dry air to the exhaust air path, and the second drive unit The exhaust air passage is opened,
It has a cloth quality detection unit that detects the quality of the laundry,
The control unit determines a time for opening the air inlet or an angle of the guide plate with respect to the peripheral surface based on the cloth quality detected by the cloth quality detecting unit, and opens the air inlet for the determined time. Or the guide plate is pivoted to a determined angle
A washing dryer characterized by. The washing / drying machine according to claim 1 or 2 , wherein a gap is formed between the guide plate and the drying air passage when the intake port is opened. The washing / drying machine according to any one of claims 1 to 3 , wherein a filter for removing dust is provided upstream of the guide plate in the drying air passage.

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