JP2015228930A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce power consumption for drying.SOLUTION: A washing and drying machine 100A comprises: an outer tub 2 in which the inside becomes a drying chamber during a drying operation; a washing and dewatering tub 3 disposed rotatably in the outer tub 2 and for accommodating laundry 90; a motor 4 for driving the washing and dewatering tub 3; a housing 1 for supporting the washing and dewatering tub 3; a drying device including a draft air path 20 for blowing air to the washing and dewatering tub 3, a fan 21 and a motor 21a for fan driving for driving the fan; and an intake valve 25 provided at the draft air path 20 and located at an upper part inside the housing 1. A duct-shaped duct-like air passage 26 is provided for introducing air from the motor 21a for fan driving to an intake port 24.

Description

  The present invention relates to a washing / drying machine.

  Drying of laundry with a dryer or a laundry dryer that can perform from washing to drying continuously creates high-temperature and low-humidity air with a blower fan and a heat source, and blows it into the washing tub to control the temperature of the laundry. This is done by evaporating the moisture from the laundry and discharging the evaporated moisture out of the machine.

  There are two methods for removing the evaporated water: an exhaust system that discharges the liquid directly to the outside of the washing and drying machine (always supplying new air) and a dehumidification system that cools the evaporated water and condenses to remove the water (circulates air).

  In the exhaust system that exhausts warm air after being blown to the laundry as it is, the air in the housing is sucked from the intake port during the drying operation, and at least a part of the air discharged from the washing tub passes through the drain hose. And exhaust technology.

  There exists Unexamined-Japanese-Patent No. 2013-371 (patent document 1) as background art of this technical field. In Patent Document 1, the fan is arranged so that the motor for driving the fan is located on the outer tub side and the rotary blade is located on the side of the outer tub, and the heat generated from the motor for driving the fan is sucked from the intake port without escaping to the outside. In addition, a technique of a washing dryer or a dryer that is used for a drying operation and in which the thermal efficiency of the drying operation is remarkably improved is described.

JP 2013-371 A

  In the configuration described in Patent Document 1, various flow paths exist when air in the enclosure is sucked from the intake port. Among these, since air is sucked into the intake port from a region having a small flow path resistance, in the configuration of Patent Document 1 that does not have a path for limiting the air flow between the fan driving motor and the intake port, the intake port is Inhales air that does not flow around the fan drive motor. This air does not obtain the heat generated from the fan driving motor, and the heat that is not sucked from the intake port is dispersed from the fan driving motor into the housing, so that the effect of improving the thermal efficiency of the drying operation is small.

  An object of the present invention is to provide a washing / drying machine that efficiently uses heat generated by a fan driving motor in a casing for drying, and reduces power consumption during drying operation.

  In order to achieve the above object, the present invention provides an outer tub whose inside becomes a drying chamber during a drying operation, a washing and dehydrating tub that is rotatably arranged in the outer tub and stores laundry, and the washing and detaching A motor that drives the water tub, a housing that supports the washing and dewatering tub, a ventilation path for blowing air to the washing and dewatering tub, a fan, and a drying device that includes a fan driving motor that drives the fan, In a washer / dryer provided in the air passage and provided with an intake valve located in the upper part of the housing, a duct-like air passage that guides air from the fan driving motor to the intake port is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the washing-drying machine which utilizes efficiently the heat | fever which generate | occur | produced with the fan drive motor in a housing | casing for drying, and reduces power consumption can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view showing a drum type washing / drying machine according to a first embodiment of the present invention. It is a perspective view which cut | disconnects a part of housing | casing of the drum type washing machine which is the 1st Example of this invention, and shows an internal structure. It is a side view which shows the internal structure of the drum type washing-drying machine which is the 1st Example of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a bottom surface of a washing / dehydrating tub obtained by longitudinally cutting a drum-type washing / drying machine according to a first embodiment of the present invention at a substantially central portion in the front-rear direction. It is a side view which shows the internal structure of the drum type washing-drying machine which is the 1st Example of this invention. It is a top view which cut | disconnects some housings | casings of the drum type washing-drying machine which is the 1st Example of this invention, and shows an internal structure. It is a flowchart which shows a part of control process which the microcomputer in the controller of the control system of the drum type washing-drying machine which is 1st Example of this invention performs. It is the perspective view and side view which show the structure of the ventilation path of the drum type washing-drying machine which is the 1st Example of this invention. It is a schematic diagram of the open state which shows the flow of the air before and behind the fan which is the 1st Example of this invention. It is a schematic diagram of the open state which shows the flow of the air before and behind the fan which is the 2nd Example of this invention. It is a schematic diagram which shows the flow of the air before and behind the fan which is the 3rd Example of this invention. It is a schematic diagram which shows the flow of the air before and behind the fan which is the 4th Example of this invention. It is the schematic which shows the internal structure of the vertical washer-dryer which is the 5th Example of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an external perspective view of a drum type washing and drying machine 100A according to the present embodiment, FIG. 2 is a perspective view showing an internal structure by cutting a part of the housing, and FIG. 3 is a side view showing the internal structure. 4 is a cross-sectional view showing the wall surface of the bottom of the washing / dehydrating tub, which is cut longitudinally at a substantially central portion in the front-rear direction of the housing, FIG. 5 is a side view showing the internal structure viewed from the opposite direction of FIG. FIG. 7 is a flowchart showing a part of control processing executed by the microcomputer in the controller of the control system, and FIG. 8 is a perspective view and side view showing the structure of the air passage. FIG. 9 and FIG. 9 are schematic views of the air intake opening showing the air flow before and after the fan.

  The drum-type washing / drying machine 100A according to the present embodiment includes a laundry / dehydration tub 3 that stores laundry 90 and performs washing, dehydration, and drying, a motor 4 that rotates the laundry / dehydration tub 3, and a laundry / dehydration tub 3 1 is provided. Here, the housing 1 is mounted on a base 1g, and includes left and right side plates 1a and 1b, a front cover 1c, a back cover 1d, a top cover 1e, and a lower front cover 1f. The left and right side plates 1a and 1b are connected by a U-shaped upper reinforcing material (not shown), a front reinforcing material 1j, and a rear reinforcing material 1k, and form a box-shaped housing 1 including a base 1g. However, it has sufficient strength as a housing.

  Further, a door 9 that closes an insertion port for taking in and out the laundry 90 is provided at the approximate center of the front cover 1c, and is supported by a hinge (not shown) provided in the front reinforcing member 1j so as to be opened and closed. When the door opening button 9d is pressed, the lock mechanism (not shown) is released and the door 9 is opened. By pressing the door 9 against the front cover 1c, the door 9 is locked in the closed state. The front reinforcing material 1j has a substantially circular opening for taking in and out the laundry 90 coaxially with an opening 2c of the outer tub 2 described later.

  The cylindrical washing / dehydrating tub 3 that is freely supported by rotation has a large number of through holes 3g for water flow and ventilation in the cylindrical outer peripheral wall 3e, and an opening for taking in and out the laundry 90 on the front end face. Part 3a. A fluid balancer 3c integrated with the washing and dewatering tub 3 is provided outside the opening 3a. A plurality of lifters 3b extending in the axial direction are provided inside the outer peripheral wall 3e. When the washing and dewatering tub 3 is rotated at a low speed during washing and drying, the laundry 90 is pressed against the outer peripheral wall by centrifugal force due to the rotation. Further, the movement in the rotation direction is inhibited by the lifter 3b. For this reason, the laundry 90 repeats the movement which lifts along the outer peripheral wall 3e, and falls with gravity. The rotation center axis of the washing and dewatering tub 3 is inclined so that the horizontal or opening 3a side becomes higher.

  A cylindrical outer tub 2 for storing washing water is supported by the housing 1, includes a washing / dehydrating tub 3 coaxially, has an open front surface, and has a motor 4 at the outer center of the bottom wall 2e. . The rotating shaft of the motor 4 passes through the outer tub 2 and is connected to the center of the bottom wall 3 f of the washing and dewatering tub 3. An outer tub cover 2 d is provided at the opening on the front surface of the outer tub 2, and water can be stored in the outer tub 2. In the center of the front side of the outer tub cover 2d, there is an opening 2c for taking in and out the laundry 90. The opening provided in the main opening 2c and the front reinforcing member 1j is connected by a rubber bellows 40, and the outer tub 2 is sealed with water by closing the door 9.

  The motor 4 includes a rotation detection device (not shown) configured by a Hall element or a photo interrupter that detects the rotation speed, and a motor current detection device (not shown) that detects a current flowing through the motor 4.

  At the lowermost part of the outer tub 2, a convex water receiving portion 2f projecting outward in the radial direction of the outer tub 2 is provided. The water receiver 2f is formed in the depth direction of the outer tub 2 from the bottom wall 2e to the outer tub cover 2d, and is connected to the drain hose 31 through the drain opening 2b. A circulation pump 34, a lint filter 35, and a drain valve 36 are provided in the middle of the drain hose 31. Further, by driving the circulation pump 34, the water accumulated in the outer tub 2 flows through the circulation water hose 31 a and is sprayed into the washing and dewatering tub 3. At this time, the circulated water passes through the lint filter 35, and dust such as lint contained in the water is collected in the lint filter 35. The lint filter 35 can be easily attached and detached by opening the door 1i provided on the lower front cover 1f and turning the handle 35a.

  A detergent container 33 is provided on the upper left side in the housing 1, and a drawer-type detergent tray 7 is attached to the opening facing the front of the housing. When putting detergents, the detergent tray 7 is pulled out as shown by a two-dot chain line in FIG. The detergent container 33 is fixed to the housing 1.

  The top cover 1e is provided with a water supply hose connection port 30a from the water tap and a water absorption hose connection port 32a for remaining hot water in the bath. The detergent container 33 is connected to a water supply nozzle 2g provided in the outer tub 2. By opening a water supply electromagnetic valve (not shown) or driving a bath water supply pump 32, a water supply hose is connected from a water tap. Washing water is supplied to the outer tub 2 from the mouth 30a or the water absorption hose connection port 32a of the remaining hot water in the bath. On the back side of the detergent container 33, water-related parts such as a water level sensor 37 are provided.

  The outer tub cover 2d is connected to an air outlet 23 for blowing air into the washing and dehydrating tub 3 mainly in a drying operation, and the air passage 20 is connected to the bottom wall 2e of the outer tub 2. The air passage 20 is composed of a plurality of bellows tubes and ducts. A dehumidifier (not shown), a fan 21 and a heat source 22 are provided in the middle of the air passage 20 and connected to the air outlet 23. Further, an opening is provided on the upstream side of the fan 21 in the air passage 20 toward the front surface of the housing, and a drawer-type drying filter 8 is inserted into the opening. The air 81 that has passed through the drying filter 8 is freed of lint and the like and flows into the fan 21. An intake port 24 and an intake valve 25 that opens and closes the intake port 24 are provided upstream of the fan 21 in the air passage 20. When the intake port 24 is closed (see FIG. 5A), the air that has flowed out of the outer tub 2 through the air passage 20 flows into the fan 21. When the intake port 24 is opened (see FIG. 5B), the air in the housing 1 is supplied to the fan 1 through the duct-like air passage 26 that includes the fan drive motor 21a and is connected to the intake port 24. 21 flows into.

  The heat source 22 may be a sheathed heater, a PTC heater, a heat pump, or the like. The heat source 22 may be arranged upstream or downstream of the fan 21 or may be included in the fan 21. In this embodiment, the heat source 22 is a heater and is included in the fan 21. The heat source 22 supplied with power in the drying operation heats the air discharged from the fan 21.

  Next, an example of the control process executed by the microcomputer in the controller of the control system will be described mainly with reference to FIG. 7 for the basic operation of washing and drying of the washing and drying machine 100A.

  When the power switch 14 is pressed, the power is turned on and a basic control processing program for washing and drying is performed.

  In step S101, the washing / drying machine 100A performs state confirmation and initial setting.

  In step S102, the display 11 of the operation panel 10 is turned on, and a washing / drying course is set according to an instruction input from the operation button switch 13. When there is no instruction input, the standard washing / drying course or the washing / drying course set in the previous operation is automatically set.

  In step S103, an instruction input from the start switch 12 of the operation panel 10 is monitored and the process branches. When the start switch 12 is pressed, the cloth amount sensing in step S104 is performed. As an example of the cloth amount sensing, the washing and dewatering tub 3 is rotated at a low speed or accelerated to a specified rotational speed, and the current value of the motor 4 at that time is measured to determine the amount of the laundry 90. Then, the display unit 11 displays the time until drying is completed. After that, a standby time (step S105) for the user to put in detergent or softener is provided. Although not shown in the figure, if the door 9 is not closed when the waiting time is over, the washing / drying machine 100A notifies the user with a buzzer or the like, and water leaks such as closing the door 9. Try not to have it.

  In step S106, the washing / drying machine 100A executes a washing operation. The washing operation is sequentially executed by combining three steps of washing, dehydration, and rinsing. As the main operation of each process, in washing, the washing / drying machine 100A supplies water with the drain valve 36 closed, stores washing water in the outer tub 2, supplies electric power to the motor 4, and rotates the washing / dehydration tub 3 The laundry 90 is washed (see FIG. 4). In the dehydration, the washing / drying machine 100A opens the drain valve 36 to drain the washing water in the outer tub 2, and rotates the washing / dehydrating tub 3 to perform centrifugal dehydration. In rinsing, the washing / drying machine 100A supplies water with the drain valve 36 closed again, and rotates the washing / dehydrating tub 3 at a low rotational speed to float detergent components remaining in the laundry 90 in the water. Make it. By performing dehydration after rinsing, the laundry 90 in the washing and dehydrating tub 3 is in a state of low moisture at the end of the washing operation.

  In step S107, it is confirmed whether or not a washing / drying course is set, and the process branches. If the washing course is set, the operation is terminated, and if the washing / drying course is set, the process proceeds to step S108.

  Step S108 is a drying operation, and includes circulation drying S108a and exhaust drying S108b.

  In the circulation drying S108a which is the first half of the drying operation, the washing dryer 100A supplies power to the heat source 22 and closes the intake port 24 by the intake valve 25. When the intake port 24 is closed, the air 83 flowing out of the outer tub 2 flows through the air blowing path 20 and flows into the fan 21. The air 82 discharged from the fan 21 is heated by the heat source 22 and blown from the blower opening 23 to the laundry 90 inside the washing and dewatering tub 3 (see FIG. 5A). Since the temperature of the air 82 is increased, the temperature difference from the laundry 90 is increased, so that the drying of the laundry 90 is promoted. The air containing moisture that dries the laundry 90 flows again into the air passage 20 and the fan 21 in the same manner as the air 83, and circulates and flows. Here, by using a dehumidifying mechanism (not shown) in the air passage 20 to dehumidify the circulating air, the humidity difference between the air and the laundry 90 is increased to promote drying.

  In the exhaust drying S108b, which is the latter half of the drying operation, the washing dryer 100A stops supplying power to the heat source 22, and heat of the laundry 90 warmed in the circulation drying S108a and the accompanying warming of the washing / dehydrating tub 3 is performed. Preheat drying using The washing / drying machine 100A opens the drain valve 36 and also opens the intake port 24 by the intake valve 25 (see FIGS. 5B, 6 and 8). When the intake valve 24 is opened, the duct-like air passage 26 sucks the air 80 in the enclosure, and the air 81 flowing through the duct-like air passage 26 and the intake port 24 flows into the fan 21. The air 82 blown from the fan 21 and blown into the washing / dehydrating tank 3 through the blower opening 23 dries the laundry 90. The air 84 containing water and flowing out of the outer tub 2 flows through the drain valve 36 and the drain hose 31 in an open state, and is discharged to the drain port 38 having the drain trap 38a (see FIG. 5B). In order to discharge the air 84 to the drain trap 38a, it is necessary to break the water seal in the drain trap 38a. In the case of a general drain trap 38a, the water seal height is about 50 to 80 mm. The pressure on the drain hose 31 side needs about 1000 Pa or more. Moreover, in order to suppress the odor from the drain outlet 38, the drain hose 31 needs to ensure a pressure higher than a predetermined level even after the water seal is broken, and the fan 21 controlled during the exhaust drying S108b is high in the drain hose 31. Keep pressure.

  After the operation is completed, the washing and drying machine 100A notifies the user that the operation has been completed by a buzzer or the like, and returns the water seal of the drain trap 38a to the state in which the water before the operation is accumulated as shown in FIG. After-treatment is performed.

  Here, the flow of air before and after the fan in the exhaust drying S108b will be described mainly with reference to FIG.

  In the circulation drying S108b, the external air 86 (see FIG. 5B) sucked from the gap at the lower part of the casing 1 is sucked into the duct-like air passage 26 after flowing through the side surface and the rear surface of the outer tub 2, The air 80 sucked into the air duct 26 flows on the surface of the fan driving motor 21. The air 81 passing through the duct-like air passage 26 and passing through the intake port 24 flows into the fan 21.

  At this time, a voltage is applied to the fan driving motor 21a to drive the fan 21, and a part of the electric power is lost in the fan driving motor 21a to generate heat. For example, when the fan driving motor 21a is driven at 200 to 300 W and the efficiency is constant at 90%, heat of 20 to 30 W is generated, and the heat is generated from the surface of the fan driving motor 21a to the periphery of the fan driving motor 21a. To the air. Therefore, the temperature of the air 80 flowing into the duct-like air passage 26 rises due to heat transfer from the surface of the fan driving motor 21a.

  The air 81 that has been heated and flows into the fan 21 from the air inlet 24 is discharged from the fan 21, flows through the air passage 20 and the air outlet 23, and becomes air 82 that is blown onto the laundry 90 inside the washing and dewatering tub 3.

  Here, when there is no duct-like air passage 26, the air 81 flowing into the fan 21 does not flow on the surface of the fan drive motor 21a, compared with the case where the duct-like air passage 26 is present, and heat generated from the fan drive motor 21a. Leaks from the surface of the housing 1 to the outside air through the air in the housing 1. For this reason, the amount of heat transfer from the fan drive motor 21a to the air 81 decreases.

  By providing the duct-like air passage 26, the amount of heat transfer from the surface of the fan driving motor 21a to the air 80 flowing into the duct-like air passage 26 increases, so the temperature of the air 82 rises, and the air 82 and the laundry 90 Temperature difference and humidity difference increase. As the temperature difference and humidity difference between the air 82 and the laundry 90 are larger, the drying of the laundry 90 is promoted. Therefore, the operation time until the drying is completed can be shortened, and the operation time is shortened, which is necessary for the drying operation. The power consumption is reduced.

  Further, the fan driving motor 21a may be one that does not have a covering housing, or one that is made of metal or plastic. In any case, heat is transmitted from the fan drive motor 21a to the air 80 by using the above-described configuration. Particularly, when the housing is made of metal, the heat conductivity of the housing is high. The thermal resistance between the air 80 is small. Therefore, since the amount of heat transferred from the fan drive motor 21a to the air 80 is large, the air 80 has a higher temperature, and the temperature difference between the air 82 and the laundry 90 is large, so the effect of reducing the power consumption of the drying operation is high.

  Further, when fins are provided on the surface of the housing of the fan drive motor 21a, the heat transfer area is wider than when no fins are provided, and the amount of heat transferred from the fan drive motor 21a to the air 80 is large. For this reason, since the temperature of the air 80 is higher and the temperature difference between the air 82 and the laundry 90 becomes larger, the drying of the laundry 90 can be promoted and the operation time can be further shortened, and the power consumption of the drying operation can be reduced. Will increase. As the fin shape, a flat plate, a pin, a corrugate and the like can be considered.

  In addition, the connection between the duct-like air passage 26 and the intake port 24 may be sealed with a sealing material or the like, but the mainstream flowing in the duct-like air passage 26 is more than the gap between the connection portion and the duct-like air passage 26. When the pressure loss is small, it is not always necessary to seal. Costs can be reduced and productivity can be improved by omitting the sealing material and using a simple air passage structure.

  Further, the fan driving motor 21a may have a characteristic that the motor efficiency deteriorates as the temperature rises. In this case, since the heat is transmitted from the fan drive motor 21a to the air 80, the temperature increase of the fan drive motor 21a can be suppressed, so that the efficiency of the fan drive motor 21a is increased. As a result, the input power of the fan drive motor 21a necessary for obtaining the same air volume and pressure increase can be reduced, so that the effect of reducing the power consumption of the drying operation can be obtained.

  In order to increase the amount of heat transferred from the fan drive motor 21a to the air 80, the heat transfer rate from the surface of the fan drive motor 21a to the air 80 is improved in the vicinity of the fan drive motor 21a and the duct-like air passage 26. There is a need. In order to improve the heat transfer rate from the surface of the fan drive motor 21a to the air 80, it is necessary to reduce the flow area in the vicinity of the fan drive motor 21a and the duct-like air passage 26 and increase the air speed of the air 80. is there.

  On the other hand, when the flow path area of the duct-like air passage 26 is small, the pressure loss is larger than when the flow passage area is large. Therefore, in order to obtain the same air volume and pressure increase, the rotational speed of the fan drive motor 21a is increased. There is a need. When the flow path area is small, the required input power of the fan driving motor 21a is larger than that when the flow path area is large, but the amount of heat transferred from the fan driving motor 21a surface to the air 80 increases, and the air 82 The temperature difference of the laundry 90 increases and the effect of reducing the power consumption of the drying operation is enhanced.

  Therefore, in order to reduce the power consumption of the drying operation of the washing / drying machine, the flow path in the vicinity of the fan driving motor 21a and the duct-shaped air path 26 is within a range where a predetermined air volume flows into the washing and dewatering tub 3. It is necessary to reduce the area and increase the wind speed of the air 80. As a result, heat can be efficiently transferred from the fan drive motor 21a to the air 80, the temperature difference between the air 82 and the laundry 90 increases, and the power consumption of the drying operation is further reduced by shortening the operation time of the drying operation. The effect of reducing the amount is increased.

  In addition, the flow path shape of the duct-like air path 26 is preferably configured to be circular in order to reduce pressure loss. However, in consideration of the structure of other parts such as the fan case 21b, there are portions where the flow passage area is small when circular, and the pressure loss may not be reduced. In this case, the flow path shape of the duct-like air passage 26 is matched to the gap shape of the other parts, and a part of the wall surface of the duct-like air passage 26 also serves as the wall surface of the other parts, thereby reducing the thickness of the omitted wall surface. The road area can be increased. Since the pressure loss can be reduced by increasing the flow passage area of the duct-like air passage 26, the input power of the fan driving motor 21a necessary to obtain the same air volume and discharge pressure can be reduced, and the power consumption of the drying operation The effect of reducing the amount is increased.

  When a high pressure type fan is used as the fan 21 to break the water seal of the drain trap 38a with the discharge pressure of the fan 21, the temperature of the air 81 flowing into the fan 21 due to the adiabatic compression of the fan 21 is 10 It rises by about ℃. In this case, the laundry 90 can be dried even in the drying operation using only the exhaust drying S108b without using the heat source 22.

  Next, a second embodiment will be described with reference to FIG.

  FIG. 10 is a schematic diagram of the air intake opening showing the air flow before and after the fan.

  The difference from the first embodiment is that the duct-like air passage 26 includes a part of the fan driving motor 21a.

  With the structure of the present embodiment, the air 80 flowing into the duct-like air passage 26 flows on a part of the surface of the fan drive motor 21a, so that the heat generated by the fan drive motor 21a is transferred to the air 80, and the air 82 The temperature difference between the laundry 90 and the laundry 90 can be increased, and by promoting the drying of the laundry 90, the operation time can be shortened and the power consumption of the drying operation can be reduced.

  Further, the duct-like air passage 26 can shorten the flow path around the fan driving motor 21a by the difference L in length between the structure of the first embodiment and the structure of the present embodiment, and the pressure loss can be reduced. For this reason, in addition to reducing the input power of the fan driving motor 21a and reducing the power consumption of the drying operation, the volume of the duct-like air passage 26 can be reduced and placed in a narrower space, increasing the weight of the product. Can be suppressed.

  Next, a third embodiment will be described with reference to FIG.

  FIG. 11 is a schematic diagram showing the air flow before and after the fan.

  The difference from the first embodiment is that the duct-like air passage 26 includes not only the fan driving motor 21 a but also the vicinity of the heat source 22 or is arranged so as to be close to the heat source 22.

  The heat generated from the heat source 22 in the circulation drying S108a is not transmitted to the air 82 but leaks into the air in the housing 1 from the wall surface around the heat source 22 (see FIG. 11A). In this embodiment, the heat 88 leaked from the heat source 22 is stored in the duct-like air passage 26, and the amount of heat diffused into the housing 1 is reduced. In the exhaust drying step S108b, the air stored in the duct-like air passage 26 is taken into the fan 21 by opening the intake port 24, and the temperature of the air 81 flowing into the fan 21 is further increased. Since the temperature difference and the humidity difference of the air 82 blown to the laundry 90 can be increased, drying of the laundry 90 is promoted, the operation time can be shortened and the power consumption can be reduced (see FIG. 11B).

  Next, a fourth embodiment will be described with reference to FIG.

  FIG. 12 is a schematic diagram showing the air flow before and after the fan.

  The difference from the first embodiment is that the air passage 20 does not have the intake valve 25 and that the air passage 20 includes the fan driving motor 21 a instead of the duct-like air passage 26. At this time, one or a plurality of the air inlets 24 exist so that the air in the housing 1 flows into the air passage 20 or the fan 21, and can be disposed at a place other than the air passage 20. Accordingly, in the same drying operation as in the first to second embodiments, the air 85 flowing through the air passage 20 and flowing into the fan 21 flows on the surface of the fan driving motor 21a included in the air passage 20.

  Here, only the sealed portion such as the housing portion of the fan drive motor 21a is included in the air passage 20, and the connection portion is sealed. Thereby, it is set as the structure where the water | moisture content and lint contained in the air 85 do not flow in into the fan drive motor 21a, and the lifetime of the fan drive motor 21a and the fall of efficiency can be suppressed.

  Further, by disposing the fan driving motor 21a downstream of the drying filter 8, the lint contained in the air 85 flowing through the air blowing path 20 is collected upstream of the fan driving motor 21a. For this reason, since it can suppress that lint accumulate | stores in a housing part and the flow path of the vicinity among the motor 21a for a fan drive, and the increase in the pressure loss of the ventilation path 20 can be suppressed, the fall of the airflow which flows in into the washing and dewatering tank 3 is reduced. Can be suppressed. Further, by suppressing lint accumulation, an increase in the thermal resistance of the air 85 and the fan driving motor 21a is suppressed, and a decrease in the amount of heat transmitted from the fan driving motor 21a to the air 85 can be prevented.

  By using such a structure, particularly when the air in the housing 1 is sucked to lower the temperature of the air 85 and the temperature difference from the surface temperature of the fan driving motor 21a is large, the heat generated from the fan driving motor 21a. Can be taken into the air passage 20 and used efficiently. For this reason, since the temperature of the air 85 rises more and the temperature difference and humidity difference of the air 82 sprayed on the laundry 90 and the laundry 90 can be increased, the drying of the laundry 90 is promoted and the operation time of the drying operation is shortened. As a result, power consumption can be reduced.

  Next, a fifth embodiment will be described with reference to FIG.

  FIG. 13 is a schematic view showing the structure of a vertical washer-dryer.

  The difference from the first embodiment is that the washing and drying machine 100B in which the rotation axis of the washing and dewatering tub 203 is substantially perpendicular to the ground is taken as an example.

  The washing and dewatering tub 203 includes a fluid balancer 203c at the upper edge thereof, and a stirring blade 205 is rotatably installed inside the bottom. The agitation blade 205 agitates the laundry 290 in the washing and dewatering tub 203 by rotating.

  The outer tub 202 containing the washing / dehydrating tub 203 has a washing / dehydrating driving device 204 on the outer side of the lower portion thereof. The outer tub 202 is evenly supported by engaging four directions with a support bar (not shown) having four shock absorbers suspended from the four corners of the upper end of the casing 201. As a result, the outer tub 202 is suspended from the central portion of the casing 201.

  The casing 201 includes an outer lid 209a that closes an insertion port for putting the laundry 290 into and out of the washing and dewatering tub 203, and the outer lid 209a is manually openable and closable. It is fixed in a closed state by a lock mechanism (not shown).

  The outer tub 202 is also provided with an inner lid 209b that closes an insertion port for putting the laundry 290 into and out of the washing and dewatering tub 203. By closing the inner lid 209b, the airtightness in the outer tub 202 is enhanced, and leakage of hot air in the drying process can be suppressed.

  An air passage 220 is connected to the lower part of the outer tub 202, and the air passage 220 has a dehumidifier (not shown), a fan 221, and a heat source 222, and is connected to the air outlet 223. In this embodiment, a fan 221 is provided on the upper portion of the housing 201, and an intake port 224 having an intake valve 225 is provided on the upstream side of the fan 221. An air passage 226 is provided so as to be connected to the air inlet 224 and include at least a part of the fan driving motor 221a.

  Such a washing / drying machine 100B is operated by combining washing, dehydration and rinsing in the same manner as the basic operation in the first embodiment. In the drying operation, air is sent to the laundry 290 in the washing and dewatering tub 203 using the fan 221 to promote the evaporation of moisture contained in the laundry 290. The air from which the laundry 290 has been dried is discharged out of the housing 201 due to a gap between the housings 201 and the flow through the drain valve 236 and the drain hose 231.

  When the air inlet 224 is opened in the drying operation, the air 281 whose temperature has increased due to heat transfer from the fan driving motor 221 a flows through the air passage 220 and flows into the fan 221. Air 282 discharged from the fan 221 flows through the heat source 222 and the air blowing path 220 and is blown into the washing and dewatering tub 203 from the air blowing port 223.

  In the vertical washer / dryer 100B, the positions of the washing / dehydrating drive device 204 and the fan driving motor 221a are divided above and below the outer tub 202. For this reason, the intake air flowing into the intake port 224 can recover the heat generated from the fan drive motor 221a at a closer position, but it is difficult to recover the heat generated from the washing / dehydrating drive device 204 at a remote position.

  In this structure, the air passage 226 allows the outside air flowing in from the gap between the casing 201 and the outer lid 209a to flow around the fan driving motor 221a while keeping the temperature outside the casing 201. Thereby, the temperature difference between the air 281 flowing around the fan driving motor 221a and the surface of the fan driving motor 221a can be increased, so that heat generated from the fan driving motor 221a can be collected with priority.

  On the other hand, unlike the drum type washer-dryer as in the first embodiment, in the vertical washer-dryer, the heat generated in the washing / dehydrating drive unit 204 during dehydration is transferred to the stirring blade 205 through the main shaft of the washing / dehydrating drive unit 204, The temperature of the stirring blade 205 is increased. When the drying operation is started after finishing the dehydration, the laundry 290 attached to the side surface of the washing / dehydrating tub 203 is in a state of being stacked around the bottom of the washing / dehydrating tub 203 and comes into contact with the agitating blade 205. Heat is transferred from the wing 205 to the laundry 290. Even during the drying operation, the heat generated by the washing / dehydrating drive device 204 is transmitted to the stirring blade 205 through the main shaft of the washing / dehydrating drive device 204, so that the laundry 290 continues to be heated by the stirring blade 205. In this way, the heat generated in the laundry dewatering drive device 204 is transmitted to the laundry 290 via the stirring blade 205.

  As described above, by using this structure, the air 282 efficiently recovered from the heat generated from the fan drive motor 221a can be blown to the laundry 290, and the heat generated from the washing / dehydrating driving device 204 can be discharged. 203, the whole laundry 290 can be heated from above and below. For this reason, this structure can reduce drying unevenness and can dry more efficiently in the operation which dries laundry 290.

DESCRIPTION OF SYMBOLS 1 Housing 2 Outer tub 3 Washing / dehydration tub 4 Motor 7 Detergent tray 8 Drying filter 9 Door 14 Power switch 20 Blower path 21 Fan 21a Fan drive motor 22 Heat source 23 Blower 24 Inlet 25 Intake valve 25c Stepping motor 26 Duct shape Air channel 31 Drain hose 36 Drain valve 38 Drain port 38a Drain trap 100A Washer / dryer 100B Vertical washer / dryer

Claims (4)

  An outer tub whose inside becomes a drying chamber during the drying operation, a washing / dehydration tub that is rotatably arranged in the outer tub and that stores laundry, a motor that drives the washing / dehydration tub, and the washing tub A housing supporting the dewatering tub, a blower passage for blowing air to the washing and dewatering tub, a fan and a drying device including a fan driving motor for driving the fan; A washer / dryer provided with an air intake valve located in a duct-like air passage that guides air from the fan driving motor to the intake port.   2. The washing and drying machine according to claim 1, wherein the duct-like air passage includes at least a part of the fan driving motor.   In Claims 1 and 2, a drainage hose for discharging water discharged from the outer tub to the outside of the casing is provided, and air in the casing inner space is sucked into the air passage from the intake port during a drying operation. A washing and drying machine that exhausts at least a part of the air discharged from the rotating drum or the washing and dewatering tank through the drainage hose.   An outer tub whose inside becomes a drying chamber during the drying operation, a washing / dehydration tub that is rotatably arranged in the outer tub and that stores laundry, a motor that drives the washing / dehydration tub, and the washing tub In a washer / dryer comprising a housing for supporting a dewatering tub, a fan passage for blowing air to the washing and dewatering tub, a fan and a fan driving motor for driving the fan, A washing and drying machine including at least a part of a fan driving motor.