JP2012075525A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing and drying machine which can reduce the manufacturing cost and the running cost.SOLUTION: A washing and drying machine 1 comprises: an outer case 10 with an opening 11a through which the laundry is put in and taken out; screen parts 16 and 17 for covering a part between a water tank 20 arranged in the outer case 10 and the periphery of the opening 11a; a dewatering bin 30 arranged in the water tank 20; a water supply part 77 for supplying the dewatering bin 30 with water; an outlet duct 51f guided from an outlet 51d facing the dewatering bin 30 and provided with a fan 50 and a heater 54; an outside air introducing duct 57 formed between the peripheral wall of the water tank 20 and the outer case 10 and connected to the outlet duct 51f; and an exhaust duct 53 guided from an air outlet 53a facing the dewatering bin 30. The machine 1 performs a washing step of supplying the dewatering bin 30 with water to wash the laundry and a drying step of sending an outside air heated up by the driving of the fan 50 and the heater 54 and exhausting the air through the exhaust duct 53 to dry the laundry. The machine 1 is also provided with a control board for controlling electrical components adjacent to the outside air introducing duct 57 on the back-face upper section of the outer case 10.

Description

  The present invention relates to a laundry dryer for washing and drying laundry.

  A conventional washing and drying machine is disclosed in Patent Document 1. In this washing / drying machine, after the first drying operation in which the blower and the heater are driven while rotating the washing / dehydrating tank at a high speed, the rotation speed of the washing / dehydrating tank is set to be lower than that in the first drying operation. A second drying operation for driving the dehumidifying means is performed.

  In the second drying operation, air containing moisture evaporated from the laundry is passed through the cooling water supplied by the dehumidifying means while the hot air is circulated inside the washing / drying machine to dehumidify. Thereby, the dry warm air can be circulated and the laundry can be dried.

JP 2010-11924 A JP 2010-42118 A

  However, according to the conventional washing and drying machine, a dehumidifying means for dehumidifying warm air containing water evaporated from the laundry is provided. For this reason, there has been a problem in that the structure becomes complicated and the manufacturing cost of the washing / drying machine increases, and the running cost increases because cooling water for dehumidification is required.

  An object of this invention is to provide the washing-drying machine which can reduce manufacturing cost and running cost.

  In order to achieve the above object, a washing and drying machine according to the present invention includes an outer box that opens and closes a doorway of laundry that opens on an upper surface by a lid portion, and a bottomed cylindrical shape that is housed in the outer box and has an upper surface opened. A water tank, a shielding part that covers between the periphery of the entrance and the upper surface of the water tank, a dehydration tank that is rotatably arranged in the water tank and is provided with a pulsator at the bottom, and a water supply part that supplies water to the dehydration tank And an air outlet duct that is led out from the air outlet facing the dehydration tank and in which a blower and a heater are arranged, and is formed between the peripheral wall of the water tank and the outer box and is connected to the air outlet duct to introduce outside air A washing step of washing the laundry by supplying water into the dewatering tank, and the blower and the heater. Sends outside air heated by driving And a drying process for drying the laundry by exhausting through the exhaust duct, and a control board for controlling electrical components is provided adjacent to the outside air introduction duct at the upper back of the outer box It is characterized by being provided in.

  According to this configuration, the blower and the heater are stopped in the washing process, and the laundry is put into the dewatering tank arranged in the water tank from the entrance and supplied from the water supply unit. Then, the washing operation and the rinsing operation are performed by the rotation of the pulsator, and the dehydrating operation is performed by rotating the dewatering tank. Thereby, the laundry is washed. In the drying process, the blower and the heater are driven, and the outside air whose temperature has been increased flows into the water tank through the outside air introduction duct and is exhausted through the exhaust duct. Thereby, the air containing water vapor is exhausted and the laundry is dried. At this time, the control board is cooled by the airflow flowing through the outside air introduction duct. Since the periphery of the doorway and the upper surface of the water tank are covered with a shielding part, there is no need to provide an inner lid on the upper surface of the water tank, and the number of parts can be reduced. When the water level rises to the upper side of the water tank due to a failure of the water supply unit in the washing process, water flows into the blowout duct and is drained through an outside air introduction duct arranged between the water tank and the outer box. At this time, the control board is disposed on the upper back of the outer box and is not arranged in the outer box, so that the control board is prevented from being flooded.

  Further, the washing and drying machine of the present invention, in the above-described configuration, includes a suction duct that is led out from a suction port facing the dewatering tank and is arranged below the blower and the heater and connected to the blowout duct, In the initial stage of the drying process, the outside air introduction duct is closed, the blower and the heater are driven, and the air in the water tank is circulated through the suction duct and the blowout duct.

  According to this configuration, the outside air introduction duct is closed at the initial stage of the drying step, and the air in the water tank is circulated through the suction duct and the blowout duct. Thereby, the temperature in the water tank is quickly raised. When the water level rises above the water tank due to a failure of the water supply unit in the washing process, water flows into the suction duct arranged below the blower and the heater and is drained through the outside air introduction duct.

  Moreover, the washing / drying machine of the present invention is characterized in that, in the above configuration, the blowing duct is arranged above the control board. According to this structure, the heat of the heater arranged in the blowing duct rises and the control board is prevented from being heated.

  In the above-described configuration, the washing and drying machine of the present invention includes an extending portion in which the shielding portion extends downward from the periphery of the doorway, and an elastic body that connects between the extending portion and the upper surface of the water tank. And a horizontal portion covering the upper side of the control board and extending from the lower end of the vertical portion and extending outward from the outer box. Part. According to this configuration, even if the inside of the drying unit is submerged through the air outlet, water falls from the horizontal portion to the outside of the control board, and the control board is more reliably prevented from being submerged.

  According to the present invention, the heated outside air is supplied into the water tank through the outside air introduction duct and exhausted through the exhaust duct in the drying step, so that the moisture evaporated from the laundry is discharged and the laundry is dried. Can do. Therefore, it is not necessary to provide a dehumidifying means for dehumidifying air containing moisture as in the conventional example, and the manufacturing cost and running cost of the washing / drying machine can be reduced. At this time, the control board adjacent to the outside air introduction duct can be cooled by outside air flowing through the outside air introduction duct.

  Moreover, since the space between the periphery of the doorway and the upper surface of the water tank is covered by the shielding portion, it is not necessary to provide an inner lid on the upper surface of the water tank, and the number of parts can be reduced. At this time, when the water level rises above the water tank due to a failure of the water supply section and water flows into the blowout duct, the water is drained through an outside air introduction duct arranged between the water tank and the outer box. Therefore, it is possible to prevent the control board from being flooded.

It is a perspective view which shows the washing-drying machine which concerns on embodiment of this invention. It is side surface sectional drawing which shows schematic structure of the washing-drying machine which concerns on embodiment of this invention. It is a perspective view which shows the state which opened the cover part of the washing-drying machine which concerns on embodiment of this invention. It is a rear view which shows the washing-drying machine which concerns on embodiment of this invention. It is a block diagram which shows the structure of the washing-drying machine which concerns on embodiment of this invention. It is a schematic sectional side view which shows the drying unit of the inside air circulation period of the washing / drying machine which concerns on embodiment of this invention. It is a schematic sectional side view which shows the drying unit of the outside air introduction period of the washing / drying machine which concerns on embodiment of this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a perspective view showing a washer / dryer according to an embodiment of the present invention from a diagonally upper front point of view, and FIG. 2 is a schematic side sectional view showing the washer / dryer of FIG. In the washing and drying machine shown in FIG. 2, the left side is the front surface and the right side is the back surface.

  The washing / drying machine 1 is a fully automatic type and includes a rectangular parallelepiped outer box 10. The outer box 10 is formed in a substantially rectangular parallelepiped shape, and its upper and lower sides are opened. The upper open portion of the outer box 10 is covered with an upper surface plate 11. An operation unit 71 for operating the washing / drying machine is provided on the front side of the top plate 11, and the back panel 14 is mounted on the back side of the top plate 11.

  An entrance / exit 11a for feeding laundry into the washing / drying machine 1 is opened at the center of the top plate 11. The entrance / exit 11a is opened and closed by a lid 15 pivotally supported by a hinge 15a provided at the front end of the back panel 14. A packing (not shown) is provided on the periphery of the lid portion 15, and the space between the entrance / exit 11 a and the lid portion 15 is sealed. By rotating the lid portion 15 up and down to open and close the entrance / exit 11a, the laundry can be put into or taken out of the dehydration tank 30 described later.

  FIG. 3 is a perspective view showing a state in which the lid portion 15 is opened. In FIG. 1 to FIG. 3, a dewatering tank 30 that also serves as a washing tub and a water tank 20 that houses the dewatering tub 30 are housed inside the outer box 10. The dewatering tank 30 stores water in which detergent is dissolved or water for rinsing (hereinafter collectively referred to as “washing water”). Both the water tank 20 and the dewatering tank 30 have the shape of a bottomed cylindrical cup having an open top surface, and are arranged concentrically with the water tank 20 on the outside and the dewatering tank 30 on the inside, with the axis being vertical. The

  The water tank 20 is suspended by a suspension member 21. Suspension members 21 are provided at a total of four locations connecting the lower outer surface of the water tank 20 and the inner corners of the outer box 10, and support the water tank 20 so that it can swing within a horizontal plane.

  The dewatering tank 30 has a peripheral wall extending upwardly in a tapered shape, and this peripheral wall has no opening for allowing liquid to pass except for a plurality of dewatering holes 31 arranged in an annular shape at the uppermost portion. That is, the dewatering tank 30 is formed in a so-called “no hole” type. An annular balancer 32 is attached to the edge of the upper opening of the dewatering tub 30 to suppress vibration when the dewatering tub 30 is rotated at a high speed for dewatering the laundry. A pulsator 33 for causing the washing water to flow in the tank is disposed on the inner bottom surface of the dewatering tank 30.

  A drive unit 40 is attached to the lower surface of the water tank 20. The drive unit 40 includes a motor 41 and a clutch / brake mechanism 43. The clutch / brake mechanism 43 is connected to the motor 41 by a belt 42, and the dewatering shaft 44 and the pulsator shaft 45 protrude upward. The clutch / brake mechanism 43 operates by electromagnetic force, and alternatively connects one of the dewatering shaft 44 and the pulsator shaft 45 to the motor 41. The clutch / brake mechanism 43 brakes the rotation of the dehydrating shaft 44 by electromagnetic force and releases the brake.

  The dewatering shaft 44 and the pulsator shaft 45 have a double shaft structure. The dewatering shaft 44 is disposed outside and the pulsator shaft 45 is disposed inside. The dewatering shaft 44 penetrates the water tank 20 and is connected to the dewatering tank 30 to support the dewatering tank 30. The pulsator shaft 45 passes through the water tank 20 and the dewatering tank 30 and is connected to the pulsator 33 to support the pulsator 33. Seal members for preventing water leakage are disposed between the dewatering shaft 44 and the water tank 20 and between the dewatering shaft 44 and the pulsator shaft 45, respectively.

  The outer box 10 is provided with an extending portion 16 that extends downward from the periphery of the doorway 11a. The extending portion 16 has a substantially vertical vertical portion 16a formed in an annular shape and a horizontal portion 16b extending substantially horizontally from the lower end of the vertical portion 16a. An annular bellows-like elastic body 17 is attached to the lower surface of the horizontal portion 16b. The extending portion 16 and the upper surface of the water tank 20 are connected by the elastic body 17, and the vibration of the water tank 20 due to the rotation of the dewatering tank 30 or the like is absorbed.

  Further, the extending portion 16 and the elastic body 17 constitute a shielding portion that shields between the periphery of the entrance / exit 11 a and the upper surface of the water tank 20. A sealed space is formed between the water tank 20 and the entrance / exit 11a by the shielding portion. Thereby, the inner cover which opens and closes the upper surface of the water tank 20 is not required, and the lid 15 can be closed to perform washing and drying.

  A drying unit 91 is installed on the extended portion 16 at the rear of the outer box 10. The drying unit 91 includes a blower 50 and a heater 54, and terminals such as a water level sensor 74 (see FIG. 5), a drive motor (not shown) for an opening / closing member 61 described later, and the like are installed on the horizontal portion 16b.

  In the drying unit 91, the first opening 51b and the exhaust port 53a are opened in the vertical part 16a of the extending part 16, and the second opening 51c and the outlet 51d are opened in the horizontal part 16b. The first opening 51 b and the second opening 51 c form a suction port 51 a of the circulation duct 51. The air outlet 51d is arranged so as to blow out hot air along the inner peripheral wall of the dewatering tank 30 downward.

  The exhaust port 53a is led out to the exhaust duct 53 that is open to the atmosphere, and opens above the suction port 51a and is arranged in the vicinity of the entrance / exit 11a. An exhaust filter 56 is provided in the exhaust duct 53. The exhaust filter 56 can prevent the fibers contained in the exhaust from being scattered in the room during the drying process.

  The suction port 51 a and the air outlet 51 d are connected by a circulation duct 51, and the blower 50 and the heater 54 are arranged in the circulation duct 51. Thus, the circulation duct 51 forms a suction duct 51e between the suction port 51a and the blower 50, and forms a blowout duct 51f between the blower 50 and the blower outlet 51d.

  The blowout duct 51f extends upward from the blowout opening 51d, and then bends in a substantially horizontal direction, and the blower 50 and the heater 54 are disposed. The suction duct 51e extends downward from the blower 50, bends forward, and then branches to communicate with the first opening 51b and the second opening 51c from the suction duct 51e. Thereby, the air blower 50 and the heater 54 are arrange | positioned in the position higher than the suction inlet 51a.

  The heater 54 is composed of a PTC (Positive Temperature Coefficient) heater, and warm air is sent out from the outlet 51 d by driving the blower 50 and the heater 54. If the hot air becomes too hot, the synthetic resin parts inside the washer / dryer 1 may be melted. For this reason, it is good to set so that the blowing temperature from the circulation duct 51 may not exceed 90 ° C.

  An intake filter 55 is provided in the suction duct 51e. The intake filter 55 is supported by a frame 55a of a resin molded product, and is disposed downstream of the second opening 51c. The front surface of the frame 55a opens to form the first opening 51b, and the lower surface of the frame 55a opens to communicate with the second opening 51c. Thereby, the intake filter 55 can be pulled out and cleaned by placing a finger on the first opening 51b.

  The intake filter 55 can prevent foreign matter (mainly fibers) from being sucked into the blower 50 or attached to the heater 54 and burnt. Further, since the first opening 51b and the second opening 51c that form the suction port 51a of the circulation duct 51 are provided on the front surface and the lower surface of the extending portion 16, respectively, the airflow flowing into the circulation duct 51 is increased. Can do.

  An outside air introduction duct 57 is connected to the circulation duct 51 upstream of the blower 50. The outside air introduction duct 57 communicates with the upper portion and the lower portion of the horizontal portion 16 b through the opening portion 13 provided in the horizontal portion 16 b of the extending portion 16. An outside air introduction duct 57 below the horizontal portion 16 b is formed between the water tank 20 and the outer box 10. The drying unit 91 is provided with an opening / closing member 61 that opens and closes the opening 13.

  A PCI generator 80 for generating plasma cluster ions (hereinafter referred to as “PCI”) composed of positive ions and negative ions is provided above the circulation duct 51. The PCI generated by the PCI generator 80 is discharged into the circulation duct 51. Further, a PCI external discharge duct 82 for discharging PCI to the outside of the circulation duct 51 is formed on the downstream side of the PCI generator 80.

  A PCI discharge valve 81 that discharges PCI to the outside of the machine is provided at a branch portion between the circulation duct 51 and the PCI outside discharge duct 82. The PCI discharge valve 81 opens the circulation duct 51 and closes the PCI outside discharge duct 82 (solid line state in FIG. 1), and also opens the PCI outside discharge duct 82 and partially opens the circulation duct 51 (in FIG. 1). Take one of the postures in the broken line state).

  Further, the horizontal portion 16b of the extending portion 16 is provided with a water supply port (not shown). The water supply port is connected to city water through a water supply valve 77 (see FIG. 5). Therefore, the water supply port and the water supply valve 77 constitute a water supply unit that supplies water to the dehydration tank 30.

  A drain hose 60 for draining the water in the water tank 20 and the dehydration tank 30 to the outside of the outer box 10 is attached to the bottom of the water tank 20. The dewatering tank 30 is provided with four drain holes 62 on the same circumference, and each drain hole 62 and the drain hose 60 are connected by a drain duct 61. A drain valve 63 is provided in the drain duct 61. When the drain valve 63 is opened, the water in the dehydration tank 30 is drained through the drain duct 61 and the drain hose 60. Further, the water that flows out from the upper part of the dehydration tank 30 during dehydration passes through between the peripheral wall of the water tank 20 and the peripheral wall of the dehydration tank 30 and is drained from the drain hose 60.

  FIG. 4 is a rear view of the washing / drying machine 1. Both side surfaces of the outer box 10 of the washing / drying machine 1 are formed by side plates 10a bent to the back side. The rear upper portion of the outer box 10 is formed by a back plate 10b attached to both side plates 10a. A lower back portion of the outer box 10 is formed by a back plate 10c attached to both side plates 10a. A vent hole 93 is provided in the back plate 10c. A control unit 70 including a control board 70a for controlling electrical components is provided on the back plate 10b. As a result, the control unit 70 is disposed adjacent to the outside air introduction duct 57 at the upper back of the outer box 10. At this time, the control board 70a of the control unit 70 can be cooled by the outside air flowing through the outside air introduction duct 57. Further, the upper portion of the control unit 70 is covered by the horizontal portion 16 b of the extending portion 16. A drying unit cover 94 that covers the back surface of the drying unit 91 is provided above the horizontal portion 16b, and a ventilation hole 95 is provided in the drying unit cover 94.

  FIG. 5 is a block diagram showing the configuration of the washing / drying machine 1. The control unit 70 includes a motor 41, a clutch / brake mechanism 43, a blower 50, a heater 54, an opening / closing member 61, a water supply valve 77, a PCI generator 80, a PCI release valve 81, an operation unit 71, a display unit 72, and a lid opening / closing sensor 73. A water level sensor 74, a temperature sensor 75, and a humidity sensor 76 are connected.

  The display unit 72 is provided in the operation unit 71 and displays an operation screen and an operation state of the washing / drying machine 1. The lid opening / closing sensor 73 detects the opening / closing state of the lid portion 15. The water level sensor 74 detects the water level in the dehydration tank 30. The temperature sensor 75 detects the temperature inside the dehydration tank 30. The humidity sensor 76 detects the humidity inside the dehydration tank 30.

  In the washing / drying machine 1 having the above-described configuration, the laundry is put into the dewatering tank 30 from the entrance / exit 11a, and the lid 15 is closed. When a washing condition is selected by the operation unit 71 and the start of washing is instructed, the lid opening / closing sensor 73 detects that the lid unit 15 is closed, and the washing process and the drying process are executed.

  In the washing process, the drain valve 63 is closed and the water supply valve 77 is opened to supply water to the dehydration tank 30 from the water supply port. When a predetermined amount of water accumulates in the dewatering tank 30, the water supply valve 77 is closed by detection of the water level sensor 74. Next, the pulsator shaft 45 is connected to the motor 41 by the clutch / brake mechanism 43 to drive the motor 41. Thereby, the pulsator 33 rotates and the washing operation is performed by stirring the water in the dewatering tank 30.

  When a predetermined time has elapsed since the start of the washing operation, the drain valve 63 is opened to drain the water in the dewatering tank 30, and the dewatering shaft 44 is connected to the motor 41 by the clutch / brake mechanism 43. Thereby, the dehydrating tank 30 is rotated at a high speed by the drive of the motor 41 and the dehydrating operation is performed. Water splashed from the laundry due to the high-speed rotation of the dewatering tank 30 flows out from the drainage duct 61 and the dewatering hole 31.

  When a predetermined time elapses after starting the dehydrating operation, the motor 41 is stopped, the drain valve 63 is closed, and the water supply valve 77 is opened. When a predetermined amount of water accumulates in the dewatering tank 30, the water supply valve 77 is closed by detection of the water level sensor 74. Next, the pulsator shaft 45 is connected to the motor 41 by the clutch / brake mechanism 43 to drive the motor 41. As a result, the pulsator 33 rotates, and the rinsing operation is performed by stirring the water in the dewatering tank 30.

  When a predetermined time has elapsed after starting the rinsing operation, the above dehydration operation is performed again. When the dehydrating operation is performed for a predetermined time, the washing process ends.

  In the washing process, the outside air introduction duct 57 is opened by the opening / closing member 61 as shown in FIG. For this reason, when the water level rises above the water tank 20 due to a failure of the water supply section and water flows into the circulation duct 51, the open / close member 61 is opened and the water is discharged through the outside air introduction duct 57. This prevents the blower 50, the heater 54, and other electrical components disposed in the drying unit 91 from being flooded.

  Moreover, since the control part 70 which has the control board 70a is distribute | arranged to the back upper part of the outer case 10, and is not arrange | positioned in the outer case 10, the water immersion of the control board 70a can be prevented. In addition, since the upper part of the control unit 70 is covered by the horizontal part 16b, even if water leaks from the circulation duct 51 into the drying unit 91, water falls from the horizontal part 16b to the outside of the control part 70. Thereby, the flooding of the control board 70a can be prevented more reliably.

  When the washing process is completed, a drying process is performed. The drying process is provided with an inside air circulation period and an outside air introduction period. During the inside air circulation period, as shown in FIG. 6, the opening / closing member 61 is closed and the blower 50 and the heater 54 are driven. Thereby, the air in the water tank 20 circulates through the circulation duct 51. During the outside air introduction period, as shown in FIG. 7, the opening / closing member 61 is opened to drive the blower 50 and the heater 54. Thereby, the outside air flowing in from the outside air introduction duct 57 is heated and sent into the water tank 20, and is exhausted from the exhaust duct 53.

  When the drying process is started, the air in the water tank 20 flows into the circulation duct 51 through the suction port 51a during the inside air circulation period by driving the blower 50. The air flowing into the circulation duct 51 is heated by the heater 54 and sent out into the water tank 20 from the outlet 51d. Thereby, the air in the water tank 20 is heated.

  Since warm air does not go out of the washing / drying machine 1 during the inside air circulation period, heat is confined in the water tank 20. Moreover, since the dehydration tank 30 is a holeless type, the amount of air leaking out from the dehydration tank 30 is small, and air hardly convects in the space between the dehydration tank 30 and the water tank 20. For this reason, the space in which the air circulates and circulates is almost limited to the inside of the dehydration tank 30, the convection and the circulation proceed efficiently, and the temperature in the dehydration tank 30 rises quickly.

  At this time, since the evaporation of water from the laundry becomes active at 50 ° C. or higher, the inside of the dewatering tank 30 is raised to 50 ° C. or higher during the inside air circulation period. At this time, the dewatering tank 30 is rotated at a lower rotational speed than the rotational speed at the time of dehydration so that the warm air is uniformly applied to the laundry inside the dehydrating tank 30. Since the pressure in the water tank 20 increases due to the temperature rise, a part of the air is exhausted to the outside through the exhaust duct 53.

  When the temperature inside the dewatering tank 30 rises, the water evaporates from the laundry, and the air in the inside air circulation in the water tank 20 contains a lot of water. When the temperature sensor 75 detects that the internal temperature of the dehydration tank 30 has risen to a predetermined value, the outside air introduction period is switched. When the humidity sensor 76 detects that the internal humidity of the dehydration tank 30 has risen to a predetermined value, it may be switched to the outside air introduction period.

  The opening / closing member 61 is opened during the outside air introduction period. As a result, the air is introduced into the circulation duct 51 from both the suction port 51 a and the outside air introduction duct 57 to the blower 50. Then, the air heated by the heater 54 flows through the blowout duct 51f and is sent downward from the blowout port 51d. Since the outside air is heated from the outside air introduction duct 57 and supplied into the water tank 20, the air containing a large amount of water in the water tank 20 is exhausted to the outside through the exhaust duct 53. Thereby, moisture is efficiently discharged from the water tank 20.

  At this time, warm air is sent out along the peripheral surface of the dehydration tank 30 downward from the outlet 51d, flows through the dehydration tank 30, and flows out from the front to the top of the dehydration tank 30. The air that has flowed out above the dehydration tank 30 flows rearward along the lid portion 15, and flows out from the exhaust port 53 a disposed near the lid portion 15. Thereby, an airflow can distribute | circulate smoothly through the sealed space enclosed by the water tank 20 and the shielding part (extension part 16, elastic body 17), and it can dry laundry efficiently.

  On the other hand, not all the air in the dehydration tank 30 is exhausted from the exhaust duct 53, but a part of the air circulates in the circulation duct 51 through the suction port 51a. Thereby, the high-temperature state inside the dehydration tank 30 can be maintained and the water evaporation rate from the laundry can be kept high.

  Further, the control board 70 a of the control unit 70 adjacent to the outside air introduction duct 57 can be cooled by the air flowing through the outside air introduction duct 57.

  When the outside air introduction period is continued and the humidity detected by the humidity sensor 76 is lower than a predetermined value, the blower 50, the heater 54, and the motor 41 are stopped. Then, the completion of the washing process and the drying process is notified by display on the display unit 72, voice, or the like.

  When the laundry is set to be sterilized by PCI in the drying process, the PCI external discharge valve 81 closes the PCI external discharge duct 82 and the PCI generator 80 is driven. Thereby, PCI is discharged | emitted in the circulation duct 51, and the air containing PCI in the dehydration tank 30 is sent out from the blower outlet 51d.

  The PCI adheres to the laundry and can perform sterilization, fungicide, deodorization, etc. of the laundry. In addition, the dehydration tank 30, the circulation duct 51, the intake filter 55, the blower 50 can be sterilized, mildew-proof, deodorized, and the like, and these can be maintained in a good sanitary state.

  If the setting is such that indoor sterilization or the like is performed by PCI in the drying process, the PCI generator 80 is driven by opening the PCI external discharge duct 82 by the PCI discharge valve 81. As a result, most of the PCI is discharged from the PCI external discharge duct 82 to the outside of the apparatus. The PCI discharged from the PCI outside discharge duct 82 diffuses into the room where the washing / drying machine 1 is placed, and can perform sterilization, mold prevention, deodorization and the like in the room.

  When the power of the washing / drying machine 1 is stopped, the opening / closing member 61 is closed. Thereby, intrusion of dust into the circulation duct 51 can be prevented.

  Note that the suction duct 51e may be closed during the outside air introduction period. Alternatively, the outside air introduction period may be performed for a predetermined period with the suction duct 51e opened and then for a predetermined period with the suction duct 51e closed.

  Further, the dehydration tank 30 may be temporarily rotated at a high speed during the outside air introduction period. Thereby, the wind speed of the convection inside the dehydration tank 30 is increased, and the evaporation of moisture from the laundry and the discharge of the evaporated moisture can be promoted.

  According to the present embodiment, the open / close member 61 is opened during the outside air introduction period of the drying process, and the heated outside air is supplied into the water tank 20 through the outside air introduction duct 57 and exhausted through the exhaust duct 53. The evaporated water can be discharged and the laundry can be dried. Therefore, there is no need to provide a dehumidifying means for dehumidifying air containing moisture as in the conventional example, and the manufacturing cost and running cost of the washing / drying machine 1 can be reduced. At this time, the control board 70a of the control unit 70 adjacent to the outside air introduction duct 57 can be cooled by outside air flowing through the outside air introduction duct 57.

  Moreover, since the space | interval of the entrance / exit 11a and the upper surface of the water tank 20 are covered with the extension part 16 and the elastic body 17 (shielding part), it is not necessary to provide an inner cover in the upper surface of the water tank 20, and can reduce a number of parts. At this time, when the water level rises above the water tank 20 due to a failure of the water supply section and water flows into the circulation duct 51, the water is drained through the outside air introduction duct 57 arranged between the water tank 20 and the outer box 10. The Therefore, the control board 70a can be prevented from being flooded.

  Further, since the opening / closing member 61 is closed and the air in the water tank 20 is circulated through the circulation duct 51 in the initial inside air circulation period of the drying process, the temperature of the air in the water tank 20 can be quickly raised. Since the suction port 51a is arranged below the blower 50 and the heater 54, when the water level rises to above the water tank 20 and water flows into the circulation duct 51 from the suction port 51a, the water is drained through the outside air introduction duct 57. . Therefore, the blower 50 and the heater 54 can be prevented from being flooded.

  Further, since the blowout duct 51f in which the blower 50 and the heater 54 are disposed is disposed above the control unit 70, the heat of the heater 54 rises, so that the control board 70a can be prevented from being heated.

  Further, since the upper part of the control unit 70 is covered by the horizontal part 16b, even if the inside of the drying unit 91 is submerged through the circulation duct 51, water falls from the horizontal part 16b to the outside of the control part 70, and the control board 70a. Infiltration of water can be prevented more reliably.

  In the present embodiment, the suction duct 51e may be omitted, and the drying step may be performed only by the outside air introduction period by connecting the outside air introduction duct 57 and the blowout duct 51f. Thereby, since the inside air circulation period is not provided, the time of the drying process is lengthened. However, since it is not necessary to provide the dehumidifying means as described above, the manufacturing cost and the running cost of the washing dryer 1 can be reduced.

  At this time, when the water level rises above the water tank 20, the water flows into the blowout duct 51 f and is drained through the outside air introduction duct 57 disposed between the water tank 20 and the outer box 10. Therefore, the control board 70a can be prevented from being flooded.

  The present invention can be widely used in washing and drying machines.

DESCRIPTION OF SYMBOLS 1 Washing and drying machine 10 Outer box 11 Top plate 11a Entrance / exit 13 Opening part 14 Back panel 16 Extension part 16a Vertical part 16b Horizontal part 20 Water tank 30 Dehydration tank 32 Balancer 33 Pulsator 40 Drive unit 41 Motor 42 Belt 43 Clutch / brake mechanism 44 Dehydrating shaft 50 Blower 51 Circulating duct 51a Suction port 51b First opening 51c Second opening 51d Blowing outlet 51e Suction duct 51f Blowing duct 53 Exhaust duct 53a Exhaust port 54 Heater 57 Outside air introduction duct 61 Opening / closing member 70 Control unit 70a Control board 71 Operation Unit 75 Temperature Sensor 76 Humidity Sensor 80 PCI Generator 81 PCI Release Valve 82 PCI External Release Duct

In order to achieve the above object, a washing and drying machine according to the present invention includes an outer box that opens and closes a doorway of laundry that opens on an upper surface by a lid portion, and a bottomed cylindrical shape that is housed in the outer box and has an upper surface opened. aquarium and a shielding portion that covers between the periphery and the upper surface of the water tank of the doorway, and de aquarium pulsator is provided at the bottom with the rotatably arranged in said water tank, a water supply unit for supplying water to said drying tub And an air outlet duct that is led out from the air outlet facing the dehydration tank and in which a blower and a heater are arranged, and is formed between the peripheral wall of the water tank and the outer box and is connected to the air outlet duct to introduce outside air A washing step of washing the laundry by supplying water into the dewatering tank, and the blower and the heater. Sends outside air heated by driving And a drying process for drying the laundry by exhausting through the exhaust duct, and a control board for controlling electrical components is provided adjacent to the outside air introduction duct at the upper back of the outer box It is characterized by being provided in.

Further, the extending portion 16 and the elastic body 17 constitute a shielding portion that shields between the periphery of the entrance / exit 11 a and the upper surface of the water tank 20, and prevents leakage of water and steam from the water tank 20 . A sealed space is formed between the water tank 20 and the entrance / exit 11a by the shielding portion. Thereby, the inner cover which opens and closes the upper surface of the water tank 20 is not required, and the lid 15 can be closed to perform washing and drying.

Claims (4)

  An outer box that opens and closes the doorway of the laundry that opens on the upper surface by a lid, a bottomed cylindrical water tank that is housed in the outer box and opens the upper surface, and between the periphery of the doorway and the upper surface of the water tank A dewatering tank that is rotatably arranged in the water tank and is provided with a pulsator at the bottom, a water supply part that supplies water to the dehydration tank, and a blower that is led out from the outlet facing the dehydration tank. Derived from a blowout duct in which a heater is arranged, an outside air introduction duct formed between the peripheral wall of the water tank and the outer box and connected to the blowout duct to introduce outside air, and an exhaust port facing the dehydration tank And an exhaust duct that is opened to the atmosphere, supplying the dehydration tank with water and washing the laundry, and sending the outside air heated by driving the blower and the heater to send the exhaust duct By exhausting through In washing and drying machine provided with a drying step of drying the 濯物, washing and drying machine, characterized in that provided on the top rear of the outer box adjacent the control board for controlling the electric components on the outside air inlet duct.   The blower is provided with a suction duct that is led out from a suction port facing the dewatering tank and is arranged below the blower and the heater and connected to the blowout duct, and the outside air introduction duct is closed at an early stage of the drying step. The laundry dryer according to claim 1, wherein the heater is driven to circulate the air in the water tank through the suction duct and the blowout duct.   The washing / drying machine according to claim 1 or 2, wherein the blowing duct is disposed above the control board.   The shield part has an extending part extending downward from the periphery of the doorway, and an elastic body that connects between the extending part and the upper surface of the water tank, and the outlet opens to the extending part, The said extending part has a vertical part which extends vertically, and a horizontal part which bends from a lower end of the vertical part and extends outside the outer box and covers the upper side of the control board. Laundry dryer.

Images