JP2002035492A - Washing drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save city water in a drying (dehumidifying) operation. SOLUTION: Water except city water is supplied (S5) to a dehumidifier as the water for dehumidifying by a water supply pump in a device equipped with a water-cooled dehumidifier for drying, and thereby a drying (dehumidifying) operation is performed by the water except city water such as bathwater so as to avoid the use of city water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing and drying machine provided with a water-cooled dehumidifier for drying.

[0002]

2. Description of the Related Art In recent years, washing and drying machines have been provided which can not only wash and dehydrate laundry but also dry it. Further, in this device, a device provided with a water-cooled dehumidifier for drying is provided. In this device, the air in the tub containing laundry is washed and dehydrated and the dehumidifier is used. At the same time, the air passed through the dehumidifier is heated by a heater to warm the air, and the dehumidifier is supplied with dehumidifying water, thereby removing moisture from the laundry in the tub to remove moisture from the tub. It dehumidifies the hot air that has flowed out from the system using a water-cooling system, and has the advantage of being able to perform efficient dehumidification with a relatively simple configuration.

[0003]

However, the water supplied to the above-mentioned dehumidifier and used for dehumidification of the warm air coming out of the tank is tap water, which usually takes about two and a half hours. One drying operation requires about 6 liters,
If it were done once a day, it would be about 180 liters a month (30 days). SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a washing and drying machine capable of reducing the amount of tap water used in a drying (dehumidifying) operation.

[0004]

In order to achieve the above object, a washing and drying machine according to the present invention comprises a tub shared for washing, dewatering, and drying, a water supply valve for supplying tap water, and a water supply valve other than tap water. A water supply pump that supplies water, a water-cooled dehumidifier, a blower that circulates the air in the tank through the dehumidifier, and a heater that heats the air passed through the dehumidifier, During the drying operation, water other than tap water is supplied to the dehumidifier as water for dehumidification by the water supply pump (the invention of claim 1). According to this, the drying (dehumidifying) operation is performed with water other than tap water, such as bath water, and use of tap water is avoided.

[0005] In this case, there is provided a judging means for judging whether or not supply of water other than tap water is possible. If it is determined that supply of water other than tap water is impossible during the drying operation, the drying operation is stopped. The dehumidifier may be switched to supply tap water as water for dehumidification by a water supply valve (the invention of claim 2). In this case, when the supply of water other than tap water becomes impossible and the dehumidification with water other than the tap water becomes impossible, for example, when the remaining bath water runs out, it is unreasonable to continue the dry operation as it is. It is possible to switch to tap water and continue the drying operation.

In addition, the apparatus is provided with water temperature detecting means for detecting the temperature of water other than tap water. If an abnormal temperature is detected by the water temperature detecting means during the drying operation, the drying operation is stopped or a dehumidifier is provided. As the dehumidifying water, it may be switched so that tap water is supplied by a water supply valve (the invention of claim 3). With this method, when the temperature of water other than tap water becomes abnormally high and dehumidification becomes impossible, it is possible to eliminate the irrationality of continuing the drying operation as it is, or to switch to tap water and continue the drying operation It is possible to

On the other hand, the water supply pump supplies water other than tap water into the tub at the time of washing, and the water supply flow rate of the water supply pump at the time of washing and the water supply flow rate at the time of drying are preferably different. 4 invention). In this case, water can be supplied at a flow rate that matches the dehumidifying capacity during drying.

In this case, the water supply pump reverses the rotation direction of the impeller or makes the rotation speed of the impeller different, so that the water supply flow rate during washing and the water supply flow rate during drying differ. (Inventions of claims 5 and 6) Alternatively, the flow rate of the water channel for supplying the dehumidifier may be set to be smaller than the flow rate of the water channel for supplying the water in the tank (claim). 7 invention). In these products, water supply with a flow rate that matches the dehumidifying capacity during drying is simple,
It can be done with a simple configuration.

Water temperature detecting means for detecting the temperature of tap water or water other than tap water is provided. During a drying operation, the supply flow rate of tap water or water other than tap water is determined based on the temperature detected by the water temperature detecting means. It may be changed (the invention of claim 8). In this case, it is possible to obtain a stable dehumidifying ability with no difference between the tap water and the temperature of the water other than the tap water, with the amount of water according to the temperature of the tap water or the water other than the tap water.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, as shown in FIG. 2, a laundry doorway 2 is formed at the center of a front part (right side in the figure) of an outer box 1 which forms an outer shell of the entire washing and drying machine. A door 3 for opening and closing is provided. Although not shown in detail, an operation panel 4 for performing an operation necessary for operation of the washer / dryer is provided on an upper surface of a front portion of the outer box 1, and an operation panel 4 is provided on the back side.
Is provided with an operation circuit unit 5 that responds to the above operation. Further, a control circuit unit 6 is provided on the rear side of the lower part of the front part of the outer box 1.

A water tank 7 is provided inside the outer box 1. The water tank 7 has a cylindrical shape, and is arranged in a horizontal axis shape whose axial direction is front and rear (left and right in the figure), and is arranged in a forwardly inclined shape, and a pair of right and left (see FIG. 3). It is supported by an elastic support device 8. Inside the water tank 7, a drum 9 is disposed coaxially with the water tank 7. This drum 9
It functions as a common tub for washing, spin-drying and drying. It has many small holes 10 in almost the entire body (only part is shown), and multiple baffles 11 in the inner periphery of the body. (Only one is shown).

Each of the water tub 7 and the drum 9 has openings 12 and 13 for loading and unloading laundry in the front part, and the opening 12 of the water tub 7 is connected to the laundry entrance 2 of the outer box 1. The opening 13 of the drum 9 faces the opening 12 of the water tank 7. A balance ring 15 is provided around the opening 13 of the drum 9.

A motor 16 is provided on the back of the water tank 7 as a driving device for driving the drum 9 to rotate. In this case, the motor 16 is of an outer rotor type, and its stator 16 a is attached to the outer periphery of a bearing housing 17 attached to the center of the back of the water tank 7.
The rotary shaft 16 attached to the center of the rotor 16b
c, which is rotatably supported by bearings 18. The center of the back of the drum 9 is attached to the front end of the rotating shaft 16c protruding into the water tank 7 from the bearing housing 17.

A water basin 19 is attached to the lower surface of the water tub 7, and a heater 2 for heating washing water is provided inside the water basin 19.
A drain hose 22 is connected to the rear of the basin 19 via a drain valve 21. In this case, the drain valve 21
Is an electric type which is opened by the driving force of an electromagnet or a motor.

On the other hand, on the upper surface of the water tank 7, a blower 23 is provided on the rear side, and a heating device 24 is provided on the front side.
The blower 23 includes a blower blade 26 provided inside a casing 25, and a motor 27 for rotating the blower blade 26 provided outside the casing 25. A belt transmission mechanism 27a Are linked by On the other hand, the heating device 24 is provided with a heater 29 for hot air inside a case 28, and an inlet of the case 28 communicates with an outlet of a casing 25 of the blower 23.

Further, a duct 30 is provided at the front of the water tank 7. One end of the duct 30 communicates with the outlet of the case 28 of the heating device 24, and the other end passes through the periphery of the opening 12 of the water tank 7 and faces the opening 13 of the drum 9. In.

As shown in FIG. 3, a dehumidifier 31 is provided on the back of the water tank 7. The dehumidifier 31 is a water-cooled type in which water is poured from the upper part to cool and condense the moisture of the air passing through the inside with water, and dehumidify the water. The dehumidifier 31 is entirely hollow and has a zigzag shape inside. Have a plurality of walls 32 forming the passage. The dehumidifier 31 has a shape concentrically curved with respect to the rotation shaft 16c of the motor 16, which is the center of rotation of the drum 9, and is disposed on the left side of the drawing so as to avoid the motor 16. ing.

The dehumidifier 31 has an air inlet 33 at the lower part and an air outlet 34 at the upper part. The air inlet 33 of the dehumidifier 31 communicates with the inner lower part of the water tank 7, and the air outlet 34 is connected to the lower part. It communicates with the inlet of the casing 25 of the blower 23. The dehumidifier 31 has first and second dehumidifiers on its upper part.
, And two first and second temperature sensors 37 and 38 are disposed inside the lower portion. Among them, the first temperature sensor 37 functions as an air temperature detecting means for detecting the air temperature in the dehumidifier 31, and the second temperature sensor 38 is
The second temperature sensor 38 functions as a water temperature detecting means for detecting the temperature of the water in the first dehumidifier 31 at the lowest portion (the portion where water accumulates) in the lower portion of the dehumidifier 31, and The temperature sensor 37 is disposed above (a portion located above the level of the accumulated water).

As shown in FIG. 4, a pump stand 39 is provided in the upper left corner of the outer box 1 in the figure, and a water supply pump 40 is mounted on the pump stand 39. I have. The water supply pump 40 is supplied with priming water from a priming water supply port 41, sucks water other than tap water such as bath water from a water suction port 42 through a water suction hose (not shown), and discharges the sucked water other than tap water. It is discharged from the water port 43.

FIG. 5 shows the inside of the water supply pump 40.
The positional relationship between the volute casing 40a and an impeller 40b that is driven to rotate by a motor (not shown) is shown.
b is offset rightward in the figure.

[0021] With this configuration, depending on the clockwise rotation of the impeller 40b, the water sucked in from the center of the impeller 40b and discharged outward is volute casing 40a.
A small amount of water is discharged through the inside, with a high flow rate, for example, 10 to 20 liters per minute, as indicated by arrow A. On the other hand, depending on the counterclockwise rotation of the impeller 40b, water sucked in from the center of the impeller 40b and discharged to the outside is also discharged to the volute casing 40a.
A large amount of water is passed through the inside of the chamber, and the flow rate is low, for example, 0.2 to 1.0 liter per minute, as shown by arrow B.

As shown in FIG. 4, a water injection case 44 is provided in front of the water supply pump 40 (downward in the figure) and at the front of the upper part of the outer box 1 on the left side in the figure. ing.
Although not shown in detail, the water injection case 44 has first and second two tap water supply paths and a supply path other than tap water, and the outlets thereof are common, and are provided in the water tank 7. It communicates from above.

The water outlet 43 of the water supply pump 40 is connected to a supply path other than tap water of the water injection case 44 via a connection hose 45, a branch joint 46, a connection hose 47, and a valve 48. . In this case, the valve 48 is the drain valve 2
It is an electric type similar to 1. The branch joint 46 is
More specifically, it is made of, for example, a T-shaped joint, and a connection hose 45 is connected to one of the three ports, and a connection hose 47 is connected to a port facing the port. Water injection case 44
The priming water supply port 41 of the water supply pump 40 is connected to the first tap water supply path via a connection hose 49.

A water distribution device 50 is provided in the upper right part of the water supply pump 40 in the outer box 1 in the drawing. The water distribution device 50 distributes tap water. One water inlet 51 connected to a water tap via a water supply hose (not shown) is provided with three first to third water outlets 52 and 5.
The water outlets 52 to 54 are provided with valves 55, 56, and 57, respectively, serving as water supply valves. In this case, the valves 55 to 57 are of an electric type similar to the drain valve 21 and the valve 48.

Thus, the valve 55 is connected to the first tap water supply passage of the water injection case 44 via the connection hose 58,
The valve 56 is connected to a second tap water supply path of the water injection case 44 via a connection hose 59. A detergent is set in the first tap water supply path of the water injection case 44,
In the tap water supply path, a washing auxiliary agent, for example, a softening agent is set.

The valve 57 is connected to the first water inlet 35 of the dehumidifier 31 via a connection hose 60.
The remaining port of the branch joint 46 is connected to a second water inlet 36 of the dehumidifier 31 via a connection hose 61. In this case, the remaining ports of the branch joint 46 connected to the second water inlet 36 of the dehumidifier 31 have substantially the same diameter as the two ports.

FIG. 6 shows a microcomputer 62 which is included in the control circuit unit 6 and functions as control means for controlling the overall operation of the washing and drying machine. Various operation signals are input from the operation input unit 63 to the microcomputer 62. The operation input unit 63 is included in the operation circuit unit 5 and outputs various operation signals according to a user operation on the operation panel 4.

In addition, the microcomputer 62 receives a water level detection signal from a water level sensor 64, which is a water level detection means provided to detect the stored water level in the water tank 7, and receives the first and second signals. Two temperature sensors 3
7 and 38, a temperature detection signal is inputted from each of them. Further, a dirt detection signal is inputted from a dirt sensor 65 which detects dirt in water, and a drying detection signal is inputted from a drying sensor 66 which detects drying of the laundry in the drum 9. Is entered.

The microcomputer 62 supplies a drive control signal to an inverter circuit 67 for driving the motor 16 based on the inputs and a control program stored in advance. Here, the motor 16 is of the above-described outer rotor type and is formed of, for example, a DC brushless motor. The microcomputer 62 controls the rotation speed and the rotation direction of the motor 16 via an inverter circuit 67. It has become.

In addition, the microcomputer 62
A buzzer 68 and an indicator 69 as notification means, the washing water heating heater 20, a drain valve 21, a motor 27 of a blower 26, a hot air heater 29, a water supply pump 40, a valve 48,
A drive control signal is given to a drive circuit 70 for driving the valves 55 to 57.

Next, the operation of the above configuration will be described. In the course of the operation of the washer-dryer of the present embodiment, regarding water supply, there are a course using tap water and a course using water other than tap water, and when the latter is selected,
The operation is executed by the microcomputer 62 as shown in FIG.

More specifically, "washing" of "washing" is performed (step S1). In this “washing”, although not shown in detail, at the time of supplying water, the tap water is first opened by opening the valve 55 of the water distribution device 50.
The water is supplied from the valve 55 to the water tank 7 through the first tap water supply path of the water injection case 44 via the connection hose 58. At this time, if a detergent is set in the first tap water supply channel of the water injection case 44, the detergent is dissolved in water and supplied to the water tank 7 together therewith. Further, from the first tap water supply channel of the water injection case 44, a part of the water is diverted to the connection hose 49 and supplied to the water supply pump 40 as priming water.

Thereafter, the valve 55 of the water distribution device 50 is closed, and the water supply pump 40 is operated instead. In this case, the water supply pump 40 rotates the impeller 40b clockwise. As a result, the water supply pump 40 discharges a large amount of water other than tap water such as bath water. Also, in this case,
The valve 48 is open, and the water discharged from the water supply pump 40 passes through the connection hose 45, the branch joint 46, the connection hose 47, and the valve 48 from the water discharge port 43, and passes through the water supply case 44 except for tap water. A large flow rate is supplied from the supply path into the water tank 7. Further, at this time, the water diverted from the branch joint 46 to the connection hose 61 enters the dehumidifier 31 through the second water inlet 36 of the dehumidifier 31, passes through the dehumidifier 31, and passes through the lower air inlet 33. It is supplied into the water tank 7.

Thereafter, the drum 9 is rotated at a low speed by the motor 16, and the laundry previously stored in the drum 9 is washed. After the washing is completed, the drainage valve 21 is opened, thereby draining water in the water tank 7 from the drainage valve 21 to the outside of the machine through the drainage hose 22.

Next, "rinsing" of "washing" is performed (step S2). In this “rinsing”, if it is determined from the detection result of the dirt sensor 65 that water other than tap water supplied by the water supply pump 40 is clean,
At the time of water supply, water supply by the water supply pump 40 is performed in the same manner as described above, and if it is determined that water other than tap water is not clean, water supply is performed by opening the valve 55 of the water distribution device 50 in the same manner as described above. After the water supply, the operation of rotating the drum 9 by the motor 16 is performed in the same manner as described above, and further, the drainage is performed in the same manner as described above.

This "rinsing" is performed a plurality of times, and at the last rinsing, the valve 56 of the water distribution device 50 is used.
Is opened, the tap water is supplied from the valve 56 via the connection hose 59 to the water tank 7 through the second tap water supply path of the water injection case 44. Therefore, at this time, if a washing auxiliary agent, for example, a softening agent is set in the second tap water supply passage of the water injection case 44, the softening agent is dissolved in water and supplied into the water tank 7 together therewith. . After this,
"Dehydration" is performed (step S3). In this “dehydration”, the drum 9 is rotated at a high speed by the motor 16 to perform centrifugal dehydration of the laundry in the drum 9.

Then, "drying" is started (step S4). In this “drying”, while the motor 16 is operated at a low speed, the motor 27 of the blower 23 and the heater 29 for the hot air of the heating device 24 are operated, and the valve 48 is closed. Then, the water supply pump 40 is operated (step S5). The operation of the water supply pump 40 in this case is to rotate the impeller 40b counterclockwise. At this time, temperature detection by the first and second two temperature sensors 37 and 38 is started.

Therefore, while the drum 9 is rotated at a low speed by the motor 16, the blower blades 26 of the blower 23 are rotated by the motor 27, so that the air in the drum 9 flows from the air inlet 33 of the dehumidifier 31. The air is sucked into the dehumidifier 31, passes upward through the dehumidifier 31, and is sucked into the casing 25 of the blower 23 from the upper air outlet 34. Then, the air sucked into the casing 25 is sent into the case 28 of the heating device 24, where it is heated by the hot air heater 29 to be warmed, and then the drum 30 passes through the duct 30. 9, and after removing moisture from the laundry in the drum 9 by passing through the drum 9, the dehumidifier 3
The suction from the first air inlet 33 into the dehumidifier 31 is repeated and circulated.

The operation of the water supply pump 40 in this case is to rotate the impeller 40b counterclockwise as described above, whereby the water supply pump 40 reduces the flow of water other than tap water such as bath water. Discharge. Further, in this case, the valve 48 is closed, so that the water discharged from the water supply pump 40 flows into the connection hose 61 at a low flow rate from the water discharge port 43 through the connection hose 45 and the branch joint 46, The water that has flowed in a small amount is used as the dehumidifier 3
The first water enters the dehumidifier 31 through the second water inlet 36 and passes through the dehumidifier 31. Therefore, at this time, in the dehumidifier 31, the above-described circulating air is cooled by water passing through the dehumidifier 31, condensed, and dehumidified, and the dehumidified air is returned into the drum 9. By repeating this, the laundry is dried.

Thus, in the situation where the "drying" is performed, the microcomputer 62 determines that the temperature t2 (the temperature of the water in the dehumidifier 31) detected by the second temperature sensor 38 is equal to a predetermined value. For example, it is determined whether the temperature is lower than 40 ° C. (step S6). If it is determined that the temperature is lower than 40 ° C. (YES), the temperature t1 (air temperature in the dehumidifier 31) detected by the first temperature sensor 37 and the temperature detected by the second temperature sensor 38 are detected. Temperature t
It is determined whether or not the difference from 2 is a predetermined value, for example, “3” or more (step S7).

If it is determined in step S7 that the temperature difference is equal to or greater than "3" (YES), then the drying sensor 66
It is determined whether or not the laundry in the drum 9 has been dried based on the detection result (step S8), and the laundry has not been dried (NO).
While the determination is made, the process returns to step S6, and if it is determined that the drying has been completed (YES), the "drying" is ended.

If it is determined in step S6 that the temperature t2 detected by the second temperature sensor 38 is not lower than 40.degree. C. (NO), the temperature of the water supplied into the dehumidifier 31 is reduced to 40. ° C or higher, for example, when the bath water was at a high temperature of 40 ° C or higher from the beginning, or when the bath boiler was ignited during “drying”,
When the temperature reaches 0 ° C. or higher, the bath water cannot be dehumidified even if the bath water is supplied to the dehumidifier 31. Therefore, in this case, the drying operation is stopped, and the abnormality is notified by the buzzer 68 and the indicator 69 (step S9).

If it is determined in step S7 that the temperature difference is not equal to or more than "3" (NO), the bath water may be supplied when there is no remaining bath water or when the water supply pump 40 fails. That is, when the supply of water other than tap water is disabled. At this time, since water other than tap water is not supplied into the dehumidifier 31, the temperature t1 detected by the first temperature sensor 37 and the second temperature sensor 38
The difference from the detected temperature t2 disappears, and the temperature difference does not exceed "3".

Therefore, in this case, it is determined whether or not 10 minutes have elapsed since the start of the drying operation, which is required to raise the temperature of the circulating air (step S10).
S), the first temperature sensor 3
It is determined whether or not the difference between the temperature t1 detected by Step 7 and the temperature t2 detected by the second temperature sensor 38 is "3" or more (Step S11), and is not "3" or more (Step S11). If the determination is NO, the process proceeds to step S9, that is, the drying operation is stopped, and the abnormality is notified. Therefore,
In this case, the microcomputer 62 functions as a judging unit for judging whether water other than tap water is supplied. If it is determined in step S11 that the temperature difference is equal to or more than "3" (YES), the process proceeds to step S8.

In contrast to the above-mentioned course using water other than tap water, the course using tap water is different from the course using tap water in place of the tap water supplied in the course using water other than tap water. Supply water. Therefore, at the time of supplying water for "washing", the valve 55 of the water distribution device 50 is opened to supply tap water throughout, and when supplying water for "rinsing", the water distribution device 5 is also supplied.
The tap valve 55 is opened to supply tap water. Furthermore, at the time of “drying”, the valve 57 of the water distribution device 50 is opened, and tap water is supplied into the dehumidifier 31 by the connection hose 60 to perform dehumidification.

As described above, according to the present configuration, in a course using water other than tap water, during the drying operation, water other than tap water such as bath water is supplied to the dehumidifier 31 as dehumidifying water. Since the drying (dehumidification) operation is performed with water other than tap water and the use of tap water is avoided, the amount of tap water used in the dry operation can be reduced.

During the drying operation, the first temperature sensor 37 detects whether or not water other than tap water is supplied, such as whether or not bath water remains and whether or not bath water can be supplied by the water supply pump 40. Judging from the difference between the measured temperature t1 and the temperature t2 detected by the second temperature sensor 38, if it is judged that the supply of water other than the tap water is impossible, the drying operation is stopped. In addition, in a situation where dehumidification with water other than tap water cannot be performed, it is possible to eliminate the irrationality of continuing the drying operation as it is.

Further, a first temperature sensor 37 is provided as a water temperature detecting means for detecting the temperature of the water in the dehumidifier 31. During the drying operation, the first temperature sensor 37 detects an abnormal temperature (for example, 40 ° C. or more). When it is detected, the drying operation is stopped, so that in the situation where the temperature of water other than tap water becomes abnormally high and dehumidification cannot be performed, the absurdity of continuing the drying operation as it is is eliminated. be able to.

In addition, the water supply pump 40 supplies water other than tap water into the drum 9 at the time of washing, and makes the water supply flow rate of the water supply pump 40 at the time of washing different from that at the time of washing. In this way, water can be supplied at a flow rate suitable for the dehumidifying capacity particularly during drying, and even water other than tap water such as bath water can be prevented from being used extra.

In this case, the water supply pump 40 reverses the rotation direction of the impeller 40b so as to make the flow rate of water supplied during washing different from the flow rate of water supplied during drying. Water supply with a flow rate that matches the dehumidifying capacity at the time can be performed in a simple manner.

The water supply pump 40 rotates the impeller 40b only clockwise in FIG. 5, for example, and varies the rotation speed so that the water supply flow rate during washing and the water supply flow rate during drying are different. The difference may be made as described above (the rotation speed during drying is made lower than the rotation speed of the impeller 40b during washing). Even in this case, water can be supplied by a simple method at a flow rate suitable for the dehumidifying capacity during drying.

7 and 8 show the second and third embodiments of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, respectively, and will be described. Omitted, and only different parts will be described.

[Second Embodiment] In a second embodiment shown in FIG. 7, a branch joint 81 is used in place of the branch joint 46 described above. This branch joint 81 is connected to a second water inlet 36 of the dehumidifier 31 via a connection hose 82.
c through the connecting hose 45 to feed water pump 4
0 and the inner diameter d2 of the port 81b connected to the valve 48 via the connecting hose 47 are smaller than the inner diameter d1 of the port
The flow rate of water flowing through the water path that supplies water to the dehumidifier 31 by the connection hose 82 is smaller than the flow rate of water flowing through the water path that supplies water into the inside, and the flow rate is, for example, the same as the above. By doing so, water supply with a flow rate suitable for the dehumidifying capacity at the time of drying can be performed with a simple configuration, and in particular, it can be performed without changing the rotation direction and the rotation speed of the impeller 40b of the water supply pump 40. It can be carried out.

[Third Embodiment] In the third embodiment shown in FIG. 8, after step S5 at the stage when "drying" is started, detection is performed by the second temperature sensor 38 instead of step S6 described above. It is determined whether the measured temperature t2 (the temperature of the water in the dehumidifier 31) is, for example, less than 10 ° C. (step S101). Here, the detected temperature t2 is 1
If it is determined that the temperature is lower than 0 ° C. (YES), the dehumidifier 31
The water is supplied at a flow rate of, for example, 0.3 liter per minute (step S102). The switching of the water supply flow rate to the dehumidifier 31 may be performed by changing the rotation speed of the impeller 40b of the water supply pump 40 as described above.

If it is determined in step S101 that the detected temperature t2 is not lower than 10 ° C. (NO), it is determined whether or not the detected temperature t2 is, for example, not lower than 10 ° C. and lower than 20 ° C. ( Step S103). Here, the detected temperature t2 is 10 ° C. or higher and lower than 20 ° C. (YES).
When it is determined that the water supply flow rate to the dehumidifier 31 is, for example, 0.4 liter per minute, water is supplied (step S10).
4).

If it is determined in step S103 that the detected temperature t2 is not lower than 10 ° C. and lower than 20 ° C. (NO), it is determined whether the detected temperature t2 is higher than 20 ° C. and lower than 30 ° C. A determination is made (step S105). If it is determined that the detected temperature t2 is equal to or higher than 20 ° C. and lower than 30 ° C. (YES), water is supplied to the dehumidifier 31 at a flow rate of, for example, 0.6 liter per minute (step S106).

If it is determined in step S105 that the detected temperature t2 is not lower than 20 ° C. and not lower than 30 ° C. (NO), it is determined whether the detected temperature t2 is higher than 30 ° C. and lower than 40 ° C. A determination is made (step S107). If it is determined that the detected temperature t2 is equal to or higher than 30 ° C. and lower than 40 ° C. (YES), water is supplied to the dehumidifier 31 at a flow rate of, for example, 0.8 liter per minute (step S108). Steps S102, S104, S1
After steps 06 and S108, the process proceeds to step S7.

In this case, step S107
When it is determined that the detected temperature t2 is 30 ° C. or higher and not lower than 40 ° C. (NO: 40 ° C. or higher), it is determined in step S11 that the temperature difference is not “3” or higher (NO). In any case, the water supply pump 40 is stopped, the valve 57 of the water distribution device 50 is opened instead, and tap water is supplied into the dehumidifier 31 through the connection hose 60 to perform dehumidification (step S109).

Thereafter, as in step S11, it is determined whether the difference between the temperature t1 detected by the first temperature sensor 37 and the temperature t2 detected by the second temperature sensor 38 is "3" or more. (Step S1
10) If it is determined that the temperature difference is "3" or more (YES), the process returns to step S101, and if it is determined that the temperature difference is not "3" or more (NO), the process proceeds to step S9, that is, the drying operation. Is stopped and the abnormality is notified.

According to this configuration, at the time of the drying operation, the flow rate of the water other than the tap water or the flow rate of the tap water is changed according to the temperature detection result by the second temperature sensor 38 (steps S101 to S108). The higher the water temperature, the more the amount of water supplied to the dehumidifier 31 is increased to compensate for the dehumidifying capacity, whereby the amount of water according to the temperature of tap water or water other than tap water, and other than tap water or tap water And a stable dehumidifying ability that is not affected by the temperature of the water can be obtained. In addition, in order to change the flow rate of tap water, the flow rate may be adjusted by, for example, changing the opening of the valve 57.

In this case, when it is determined that the supply of water other than tap water is impossible (N in steps S7 and S11).
In O), instead of stopping the above-mentioned drying operation, the dehumidifier 31 is switched to supply tap water as water for dehumidification by the valve 57 (step S1).
09), whereby the drying operation for dehumidifying the circulating air can be continued.

Further, in this case, when an abnormal temperature is detected by the second temperature sensor 38 during the drying operation (NO in step S107), instead of stopping the drying operation, the dehumidifier 31 Tap water is used as dehumidifying water.
7 (step S109), whereby the drying operation for dehumidifying the circulating air can be continued.

Here, it is assumed that the tap water has an abnormal temperature. However, this is a case where the tap water is supplied via a water heater, and the tap water depends on the temperature setting of the water heater. This is because dehumidification can result in an abnormally high temperature.

Although the first to third embodiments of the present invention have been described above, the present invention is not limited to them. For example, a water supply pump 40 for supplying water other than tap water to the dehumidifier 31 is basically similar to the first embodiment. In addition, a water pump other than the tap water for supplying water other than the tap water into the water tank 7 may be used, for example, a pump dedicated to dehumidification. Further, these water supply pumps are not limited to those provided in the machine of the washing and drying machine, but are used by being immersed in water by being located outside the machine, for example, at the tip of a water supply hose. May be. In addition, the valve 48 is not limited to the electric type, and may be manually opened and closed.
Further, instead of providing the valve 48, the branch joint 46 may be of a switching cock type. Further, the whole is not limited to the drum type washer / dryer, but may be a vertical axis type washer / dryer having a vertical axis having a tub and an opening at an upper surface.

[0065]

The present invention is as described above.
The following effects are obtained. According to the washing and drying machine of claim 1,
Drying (dehumidification) operation is performed with water other than tap water, such as bath water, and the use of tap water can be avoided, so that the amount of tap water used can be reduced. According to the washing and drying machine of claim 2, when supply of water other than tap water becomes impossible and dehumidification with water other than tap water becomes impossible, it is possible to eliminate the irrationality of continuing the drying operation as it is. Alternatively, the drying operation can be continued by switching to tap water.

According to the washing and drying machine of claim 3, when the temperature of water other than tap water becomes abnormally high and dehumidification cannot be performed, it is possible to eliminate the irrationality of continuing the drying operation as it is, Alternatively, the drying operation can be continued by switching to tap water. According to the washing and drying machine of the fourth aspect, water can be supplied at a flow rate that matches the dehumidifying capacity during drying. According to the washing and drying machine of the fifth aspect, it is possible to supply water with a flow rate suitable for the dehumidifying capacity at the time of drying by a simple method.

According to the washing and drying machine of the sixth aspect, water can be supplied in a simple manner at a flow rate suitable for the dehumidifying capacity during drying. According to the washing and drying machine of the seventh aspect, water can be supplied at a flow rate suitable for the dehumidifying capacity during drying with a simple configuration. According to the washing / drying machine of claim 8, it is possible to obtain a stable dehumidifying capacity with a difference in the temperature of the tap water or the water other than the tap water with a water amount according to the temperature of the tap water or the water other than the tap water. Can be.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating an operation of a first embodiment of the present invention.

FIG. 2 is a vertical sectional side view of the entire washing and drying machine.

FIG. 3 is a rear view of the entire washing / drying machine with an outer case back plate removed.

FIG. 4 is a top view of the entire washing and drying machine in a state where an outer box upper plate is removed.

FIG. 5 is an explanatory diagram of an internal structure of a water supply pump.

FIG. 6 is a block diagram of an electrical configuration.

FIG. 7 is an enlarged cutaway plan view of a branch joint according to a second embodiment of the present invention.

FIG. 8 is a view corresponding to FIG. 1, showing a third embodiment of the present invention.

[Explanation of symbols]

9 is a drum (tank), 23 is a blower, 29 is a heater, 3
1 is a dehumidifier, 37 is a first temperature sensor, 38 is a second temperature sensor (water temperature detecting means), 40 is a water supply pump, 40b
Is an impeller, 46 is a branch joint, 47 is a connection hose (a water channel for supplying water into the tank), 48 is a valve, 57 is a valve (water supply valve), 61
Denotes a connection hose, 62 denotes a microcomputer (judgment means), 81 denotes a branch joint, and 82 denotes a connection hose (a channel for supplying water to the dehumidifier).

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B155 AA16 BB14 CB07 CB42 CB44 CB52 CB57 KA12 LA12 LA14 LB18 LB20 LB24 LB29 LC08 LC28 MA01 MA02 MA06 MA08 4L019 AA02 AC01 AG01

Claims (8)

[Claims] A tank commonly used for washing, dehydrating, and drying; a water supply valve for supplying tap water; a water supply pump for supplying water other than tap water; a water-cooled dehumidifier; And a heater that heats the air that has passed through the dehumidifier, wherein the dehumidifier includes water other than tap water as dehumidifying water during a drying operation. Washer is supplied by the water supply pump. And a determining means for determining whether or not supply of water other than tap water is possible. If it is determined that supply of water other than tap water is impossible during the drying operation, the drying operation is stopped or dehumidification is performed. 2. The washing / drying machine according to claim 1, wherein the water is supplied to the water supply device through a water supply valve as dehumidifying water. 3. A water temperature detecting means for detecting a temperature of water other than tap water, wherein during a drying operation, when an abnormal temperature is detected by the water temperature detecting means, the drying operation is stopped or a dehumidifier is provided. 2. The washing and drying machine according to claim 1, wherein tap water is switched to be supplied by a water supply valve as the dehumidifying water. 4. A water supply pump for supplying water other than tap water into a tub at the time of washing, wherein a water supply flow rate of the water supply pump at the time of washing and a water supply flow rate at the time of drying are different. The washing and drying machine as described. 5. The washing and drying machine according to claim 4, wherein the water supply pump makes the rotation of the impeller reverse so as to make the flow of water supplied during washing different from the flow of water supplied during drying. 6. The washer / dryer according to claim 4, wherein the water supply pump makes the rotational flow rate of the impeller different so that the flow rate of the water supply during washing is different from the flow rate of the water supply during drying. 7. A water supply pump supplies water other than tap water into a tub at the time of washing, and a flow rate of a water channel supplied to the dehumidifier is determined to be smaller than a flow rate of a water channel supplied to the tub. The washing / drying machine according to claim 1, wherein: 8. A water temperature detecting means for detecting a temperature of tap water or water other than tap water, and in a drying operation, a flow rate of tap water or water other than tap water is determined based on a result of temperature detection by the water temperature detecting means. The washing and drying machine according to claim 1, wherein the washing and drying machine is changed.