JP2013146349A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing and drying machine that can maintain a sanitary space clean even though having a simple structure and is inexpensive.SOLUTION: The washing and drying machine comprises: a water tank; a rotary drum provided in an inner part of the water tank; a drying air path in which drying air to be supplied to the water tank and the rotary drum passes through; a blower fan 70 and an ion generator 80 which are arranged at the drying air path; an exhaust duct 73 communicated with the drying air path; a suction port 69a that is formed at a suction side of the blower fan 70 in the drying air path; and a filter 71 that is arranged at a more upstream side than the suction port 69a in the drying air path and removes dust. A communication part of the exhaust duct 73 and the drying air path is formed between the suction port 69a and the filter 71.

Description

  The present invention relates to a washing and drying machine including a drying air passage through which drying air supplied into a water tank and a rotating drum flows.

  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. It is configured to accommodate a cylindrical rotating drum.

  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 (tumbling), and when it is dropped, it is struck against the peripheral 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 connects the introduction port and the outlet port that open into the water tank through the air duct, and circulates in the circulation path including the water tank, the rotating drum, and the air duct.

Also, as interest in improving the indoor environment has increased, an ion generator that generates positive and negative ions for air purification is provided in the circulation path, and the dry air containing positive and negative ions goes outside the aircraft (ie, sanitary space). A washing / drying machine capable of blowing air has been developed (for example, see Patent Document 1).
FIG. 11 is a schematic longitudinal sectional view showing a circulation path included in the washing / drying machine disclosed in Patent Document 1. As shown in FIG. As shown in FIG. 11, the circulation path 100 is provided with a blower fan 170 for raising dry air. A cooling unit (not shown) upstream of the blower fan 170 generates positive and negative ions on the downstream side. An ion generator 180 and a heater 172 are provided. An intake port 133 is formed on the suction side of the blower fan 170. On the downstream side of the ion generator 180, an air passage 105 is provided. One end of the air passage 105 opens toward the outside of the machine, and the other end is connected to the circulation passage 100 so as to be able to communicate / block. In addition, a filter 140 is provided on the upstream side of the blower fan 170 for capturing and removing dust contained in the dry air circulating in the machine.

  When the laundry is dried with dry air containing positive and negative ions generated by the ion generator 180, the air passage 105 is blocked from the circulation passage 100, and the air inlet 133 is closed. The entire circuit 100 forms a closed space. At this time, the dry air containing positive and negative ions circulates in the circulation path 100, comes into contact with the laundry L in the rotary drum 103, deprives the laundry L of moisture, and is then cooled in the cooling unit to condense the contained moisture. The dry air thus removed is heated when passing through the heater 172 and returned into the rotary drum 103. The laundry L in the rotating drum 103 is dried while being deodorized and sterilized by repeating contact with the circulating drying air.

  When the dry air containing positive and negative ions generated by the ion generator 180 is blown out of the apparatus, the air passage 105 is communicated with the circulation passage 100 and the air inlet 133 is opened. At this time, a part of the drying air circulating in the circulation path 100 is blown out of the machine from the blower opening 105 a opened at one end of the blower path 105. Further, since the air pressure inside the circulation path 100 is lowered by the above-described air blowing, the air outside the circulation path 100 is sucked into the circulation path 100 through the opened intake port 133.

JP 2011-67301 A

  However, in the washing and drying machine described in Patent Document 1, when air containing positive and negative ions is exhausted to the outside of the machine, there is a problem that dust is also scattered in the sanitary space. In order to solve this problem, a filter for capturing and removing dust is required, which increases the number of components and increases costs.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a low-cost washing and drying machine that can keep a sanitary space clean with a simple structure.

  The washing and drying machine according to the present invention includes a water tank, a rotating drum provided inside the water tank, a drying air passage through which the drying air supplied to the water tank and the rotating drum flows, and the drying air passage. A blower fan and an ion generator, an exhaust air passage communicating with the dry air passage, an intake port formed on a suction side of the blower fan in the dry air passage, and an upstream side of the intake port in the dry air passage In the washer / dryer having a filter disposed on the side and removing dust, the exhaust air passage and the communicating portion of the dry air passage are formed between the air inlet and the filter. .

  In the present invention, the filter provided on the upstream side of the air intake port in the dry air passage circulates in the machine by forming a communication portion between the exhaust air passage and the dry air passage between the air inlet and the filter. It also serves to remove dust contained in the drying air and the drying air exhausted outside the machine. In a washing and drying machine equipped with an ion generator, clean air can be exhausted outside the machine without providing a filter in the exhaust air passage, and the sanitary space can be kept clean with a simple structure.

  The washing / drying machine according to the present invention includes a guide plate that is provided on a peripheral surface of the drying air passage that is opposed to the communication portion, and that guides the drying air to the exhaust air passage. It is formed between the fan and the guide plate.

  In the present invention, a guide plate that guides the dry air to the exhaust air passage is provided on the circumferential surface of the dry air passage facing the communicating portion between the exhaust air passage and the dry air passage, and the direction of the guide plate is controlled. The drying air flowing through the drying air passage is surely exhausted from the exhaust passage. Further, an air inlet is formed between the blower fan and the guide plate, and dried air outside the dry air passage can be taken into the dry air passage from the air inlet.

  The washing / drying machine according to the present invention is characterized in that the guide plate is pivotally supported on the peripheral surface, and the intake port is opened and closed by pivoting the guide plate.

  In the present invention, the intake port is opened and closed by the guide plate, and intake and exhaust and stop 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.

  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.

  In the washing / drying machine according to the present invention, the dust is removed from the drying air circulating in the drying air passage and the drying air exhausted outside the machine only by the conventional filter provided on the upstream side of the blower fan. Since this can be realized, it is not necessary to provide a dedicated filter in the exhaust air passage, and the number of parts of the washing / drying machine can be reduced. In addition, by the effect of the released ions, it is possible to suppress the propagation of fungi and viruses in the sanitary space, to suppress the so-called moisture odor in the sanitary space, and to keep the sanitary space clean with a simple structure. Can do.

1 is a perspective view schematically showing an appearance of a washing / drying machine according to an embodiment. 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 top view of an ion generator. FIG. 6 is a conceptual diagram schematically showing a configuration in the vicinity of a connection duct 69 and an air supply duct 79. It is a longitudinal cross-sectional view which shows the structure of exhaust duct vicinity. It is a perspective view which shows the structure of an exhaust duct vicinity. It is a longitudinal cross-sectional view which shows the exhaust port of an exhaust duct. It is a typical longitudinal cross-sectional view which shows the circulation path with which the washing-drying machine disclosed by patent document 1 is provided.

  Hereinafter, the present invention will be described in detail with reference to the drawings showing a washing / drying machine according to an embodiment. 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.

  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, washing water is supplied into the water tank 2 and 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 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 second 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 second water supply outlet, the water supply 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 suction side of the circulation pump 120 through a water pipe 123, and the discharge side of the circulation pump 120 is connected to the front upper portion of the water tank 2 through a return pipe 121. It is communicated to.

  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 that is an air chamber is connected to the drain pipe 24. A water level sensor 29 is attached to the air trap 28.

  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. During the washing operation, the washing water is sucked into the circulation pump 120 by driving the circulation pump 120, and the pressure is increased, and the washing water is sent to the upper part of the water tank 2 through the return pipe 121 and rotated from the tip of the return pipe 121. It is injected into the drum 3.

  Air remains in the air trap 28 even after the drain pipe 24 is filled with washing water. The air pressure in the air trap 28 increases as the washing water level rises inside the water tank 2. The water level sensor 29 is a pressure sensor that detects the air pressure in the air trap 28. 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. It touches.

  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 through a connecting duct 69. A filter 71 is provided in the connecting duct 69. The discharge side of the blower fan 70 is connected to the end of the introduction pipe 64 through the air supply duct 79. Further, an ion generator 80 and a heater 72 are provided on the discharge side of the blower fan 70. The heater 72 is provided on the downstream side of the ion generator 80. An exhaust duct 73 that exhausts dry air is communicated with the connection duct 69.

  FIG. 6 is a plan view of the ion generator 80. As shown in FIG. 6, the ion generator 80 supplies voltages to two ion generation units 81 and 82, and the ion generation units 81 and 82 that are separated and independently arranged at a distance that can ensure insulation. A power supply unit (not shown), an ion generation unit 81, 82, and a box-shaped holding body 83 that holds the power supply unit are provided, and the power supply unit supplies a voltage to the ion generation unit 81, 82, whereby the ion generation unit 81 and 82 are configured to corona discharge and generate ions.

  The ion generating portions 81 and 82 have sharp discharge electrode convex portions 81a and 82a, and induction electrode rings 81b and 82b surrounding the discharge electrode convex portions 81a and 82a, and each of the induction electrode rings 81b and 82b. Discharge electrode convex portions 81a and 82a are arranged at the center, and one ion generating portion 81 is configured to generate positive ions, and the other ion generating portion 82 is configured to generate negative ions. The ion generator 80 may be configured to generate only negative ions.

  FIG. 7 is a conceptual diagram schematically showing the configuration near the connection duct 69 and the air supply duct 79. In FIG. 7, the flow of exhaust and intake air, which will be described later, is indicated by arrows. As shown in FIG. 7, the connection duct 69 has an intake port 69 a on the suction side of the blower fan 70. A communicating portion between the exhaust duct 73 and the connecting duct 69 is located between the intake port 69 a and the filter 71. A guide plate 74 that guides the dry air to the exhaust duct 73 is provided on the peripheral surface of the connection duct 69 that faces the exhaust duct 73 at the communicating portion. The intake port 69 a is formed between the blower fan 70 and the guide plate 74.

  8 is a longitudinal sectional view showing the configuration in the vicinity of the exhaust duct 73, FIG. 9 is a perspective view showing the configuration in the vicinity of the exhaust duct 73, and FIG. 10 is a longitudinal sectional view showing the exhaust port of the exhaust duct 73. 8 to 10, the front, rear, left and right directions are shown with arrows. In FIG. 8, the flow of exhaust and intake air, which will be described later, is indicated by arrows.

  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. 8 and 9). 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. 10, 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,.

  As shown in FIG. 8, on the lower surface of the connecting duct 69, an intake port 69 a is opened between the communication point with the exhaust duct 73 and the blower fan 70. Is guided by a pivot shaft 74a which is long in the left-right direction. One edge of the guide plate 74 is connected to the pivot 74a and extends toward the intake port 69a. A stepping motor (not shown) is provided on the lower surface of the connection duct 69 that faces the communication point with the exhaust duct 73. The output shaft of the stepping motor is connected to the pivot shaft 74a, and the guide plate 74 pivots up and down by the rotation of the stepping motor. By the pivoting of the guide plate 74, the air inlet 69a is opened or closed.

  An exhaust plate 75 that opens or seals the exhaust duct 73 is pivotally supported on a side surface of the projecting portion 73b by a pivot (not shown) that is long in the front-rear direction. As shown in FIG. 8, 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.

  In the washer / dryer having the drying air passage configured as described above, the heating drying operation and the exhaust drying operation are performed. During the heating and drying operation period, the intake port 69a and the exhaust duct 73 are closed, the blower fan 70 is driven, the heater 72 is operated, the drum motor 4 is driven, the rotary drum 3 is tumbled at a low speed, The water supply valve 51 is switched to the second water supply outlet, and the cooling water flows on the cooling plate 23.

  Inside the drying air passage, a flow is generated by driving the blower fan 70. Dry air is sucked and pressurized from the outlet duct 60 connected to the suction side, heated when passing through the heater 72, and sent out to the introduction duct 61 connected to the discharge side. The dry air sent into the introduction duct 61 reaches the introduction port 65 and is introduced into the rotary drum 3 through the communication hole 68 and the introduction hole 34. 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 through a large number of small holes 32 formed in the peripheral wall. It is led out into the lead-out duct 60 through the lead-out port 62 formed as described above, and is sucked into the blower fan 70 again.

  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.

  Further, during such a heating and drying operation, the ion generator 80 is driven at an appropriate timing. Positive and negative ions are generated inside the drying air path by driving the ion generator 80. The generated positive and negative ions are introduced into the rotating drum 3 together with the drying air. The laundry in the rotating drum 3 is deodorized and sterilized by the action of positive and negative ions contained in the dry air. Further, positive and negative ions contained in the drying air circulating inside the washing and drying machine deodorize and disinfect the inside of the outlet duct 60, the outlet pipe 63, the rotary drum 3, the water tank 2, and the like.

  In the exhaust drying operation period, the blower fan 70 is driven, the ion generator 80 is operated, the second water supply outlet is closed, the heater 72 is turned off, the exhaust duct 73 and the intake port 69a are connected to the exhaust plate 75 and the induction plate. It is released by pivoting 74. At this time, as shown in FIG. 7 and FIG. 8, the guide plate 74 pivots upward and maintains an obliquely upward posture, and guides most of the dry air to the exhaust duct 73. Note that 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, and a part of the drying air is sucked into the blower fan 70 and enters the rotary drum 3. Infused.

  The dry air sent out from the outlet 62 into the outlet duct 60 passes through the filter 71 as shown by the arrows in FIGS. 7 and 8, and dust is trapped and removed. Most of the air is exhausted by the guide plate 74. It is guided to the duct 73 and is exhausted from the exhaust port 73a via the protrusion 73b. At this time, positive and negative ions contained in the dry air are also released from the exhaust port 73a. Since positive and negative ions are contained in the exhausted dry wind, propagation of fungi and viruses in the sanitary space and moisture odor are suppressed.

  In addition, the inside of the connection duct 69 becomes negative pressure by the exhaust, and the air outside the connection duct 69 is sucked from the opened intake port 69a. The air is introduced into the rotary drum 3, hits the laundry, takes away moisture, and is sent out into the outlet duct 60 through the outlet 62.

  In the washing and drying machine according to the embodiment, the communication portion between the exhaust duct 73 and the drying air passage is formed between the air inlet 69a and the filter 71, and therefore the filter 71 includes dust contained in the circulating drying air. Is captured and removed, and dust contained in the dry air exhausted outside the apparatus is captured and removed. Since it is not necessary to provide a separate filter in the exhaust duct 73, the number of parts of the washing / drying machine can be reduced, and positive and negative ions can be released outside the machine with a simple structure. In addition, positive and negative ions having an air purification function can be released to the outside of the machine during the drying operation, so that the effect of the released positive and negative ions suppresses the growth of fungi and viruses in the sanitary space. It is possible to suppress a so-called moisture odor in the space. Thereby, the sanitary space can be kept clean with a simple structure.

  A guide plate 74 that guides the drying air to the exhaust duct 73 is provided on the peripheral surface of the drying air passage facing the communicating portion between the exhaust duct 73 and the drying air passage. The dry air flowing through the passage can be reliably exhausted from the exhaust duct 73. In addition, an air inlet 69a is provided between the blower fan 70 and the guide plate 74, and the dried air outside the connection duct 69 can be taken into the dry air path from the air inlet.

  In the above embodiment, an example has been described in which the ion generator 80 is provided in the dry air path and deodorization and sterilization are performed using positive and negative ions generated in the ion generator 80. However, instead of the ion generator 80, charging is performed. An appropriate device capable of generating particles may be provided in the drying air passage to perform deodorization and sterilization. As such an apparatus, for example, an apparatus that collects moisture in the air with an atomizing electrode, causes condensation, and applies high voltage to the condensed water to generate fine particle ions.

  Further, in the above embodiment, the guide plate 74 that guides the dry air to the exhaust duct 73 is pivotally supported on the lower surface of the connection duct 69 at the communication point with the exhaust duct 73. The example in which the intake port 69a is opened or closed has been described, but the intake port 69a may be opened or closed by a member other than the guide plate 74.

  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)
69a Intake port 70 Blower fan 71 Filter 73 Exhaust duct (exhaust air passage)
74 Induction plate 80 Ion generator

Claims (4)

A water tank, a rotating drum provided inside the water tank, a drying air path through which the drying air supplied into the water tank and the rotating drum flows, a blower fan and an ion generator disposed in the drying air path, An exhaust air passage communicating with the dry air passage, an air inlet formed on the suction side of the blower fan in the dry air passage, and an upstream side of the air inlet in the dry air passage are disposed to remove dust. In the washing and drying machine provided with a filter,
A communicating part of the exhaust air passage and the drying air passage is formed between the air inlet and the filter. It is provided on the peripheral surface of the drying air path facing at the communicating portion, and includes a guide plate that guides the drying air to the exhaust air path,
The washing / drying machine according to claim 1, wherein the air inlet is formed between the blower fan and the guide plate. The guide plate is pivotally supported on the peripheral surface;
The washing / drying machine according to claim 2, wherein the intake port is opened and closed by pivoting the guide plate. The washing / drying machine according to claim 3, wherein a gap is formed between the guide plate and the drying air passage when the intake port is opened.

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