JP2022012945A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress heating of a liquid agent used for washing such as a detergent and a softener by heat during a drying operation.
A washer / dryer 100 includes a housing 1, an outer tub 3 arranged inside the housing, a rotatable washing / dehydrating tub 4 arranged inside the outer tub, and a washing / dehydrating tub. (Motor 6), a tank for storing the liquid used for washing (detergent tank 91), and a cooling unit (water cooling unit 14) for cooling the liquid supplied from the tank to the washing / dehydrating tank. It has a detection unit 200 for detecting whether or not the cooling function of the cooling unit is effective.
[Selection diagram] Fig. 1

Description

The present invention relates to a washer-dryer provided with means for drying laundry such as clothes and cloth, particularly a vertical type washer-dryer.

As a washer / dryer, for example, a drum is rotatably arranged inside a water tank arranged horizontally or substantially horizontally inclined, and the drum is rotationally driven around a rotation axis to wash laundry. There is a drum-type washer-dryer that rinses, dehydrates, and dries (see, for example, Patent Document 1). Further, for example, there is also a vertical type washer-dryer that rotates and drives a water tank that rotates around a rotation axis arranged in the vertical direction (vertical direction) to wash, rinse, dehydrate, and dry the laundry.

The washing / drying machine described in Patent Document 1 includes a housing, a water tank provided inside the housing, automatic washing treatment liquid charging means for supplying the washing treatment liquid into the water tank, and washing in the water tank. The washing treatment liquid is provided with a detergent inlet for supplying the treatment liquid, a washing treatment liquid automatic charging means, a water supply means for supplying water to the detergent inlet, and a control means for controlling the washing treatment liquid supply means. The supply means includes a tank for holding the washing treatment liquid inside and a transport pump for transporting the washing treatment liquid from the inside of the tank to the outside of the tank, and the washing treatment liquid automatic charging means includes. The configuration is characterized in that it is arranged on the upper side of the housing and is arranged between the detergent inlet and the water supply means.

Japanese Unexamined Patent Publication No. 2018-11618

Since the washing / drying machine has a tank arranged at the top of the housing, detergents, softeners, etc. supplied from the tank to the washing / dehydrating tank (corresponding to the water tank of Patent Document 1) due to the heat during the drying operation. The liquid agent (washing treatment liquid) used for washing is heated. In such a conventional washing / drying machine, it has been desired to suppress the heating of the liquid agent (washing treatment liquid) used for washing by the heat during the drying operation.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a washer-dryer that suppresses heating of a liquid agent used for washing by heat during a drying operation.

In order to achieve the above object, the present invention is a washer / dryer, in which a housing, an outer tub arranged inside the housing, and a rotatable washing / removing machine arranged inside the outer tub are provided. A water tank, a driving means for rotationally driving the washing / dehydrating tank, a tank for storing the liquid agent used for washing, a cooling unit for cooling the liquid agent supplied from the tank to the washing / dehydrating tank, and the cooling unit. It is configured to have a detection unit for detecting whether or not the cooling function is effective.
Other means will be described later.

According to the present invention, it is possible to suppress the heating of the liquid agent used for washing by the heat during the drying operation.

It is an internal structure diagram of the washer-dryer which concerns on embodiment. It is explanatory drawing which shows the flow of the circulating wind during the drying operation of the washer-dryer which concerns on embodiment. It is a perspective view of the water cooling part (cooling part) attached to the detergent automatic addition unit of the washer-dryer which concerns on embodiment. It is a front view of the water cooling part (cooling part) attached to the detergent automatic addition unit of the washer-dryer which concerns on embodiment. It is a perspective view of the water cooling part (cooling part) of the washer-dryer which concerns on embodiment. It is a top view of the water cooling part (cooling part) of the washer-dryer which concerns on embodiment. It is a front view of the water cooling part (cooling part) of the washer-dryer which concerns on embodiment. It is a block diagram of the control circuit of the washer-dryer which concerns on embodiment. It is a flowchart which shows the operation of the washing and drying operation of the washing and drying machine which concerns on embodiment. It is a flowchart which shows the operation of the drying operation of the washer-dryer which concerns on embodiment. It is a flowchart which shows the operation of the washer-dryer which concerns on embodiment during a drying operation. It is a schematic explanatory drawing which shows an example of the measured value of the circulation air temperature sensor in the case where the cooling function of the water cooling part (cooling part) of the washer-dryer which concerns on embodiment is effective. It is a schematic explanatory drawing which shows an example of the measured value of the circulation air temperature sensor in the case where the cooling function of the water cooling part (cooling part) of the washer-dryer which concerns on embodiment is invalid. It is a flowchart which shows another operation of the washer-dryer which concerns on embodiment during a drying operation. It is a schematic explanatory drawing which shows an example of the measured value of the drainage temperature sensor in the case where the cooling function of the water cooling part (cooling part) of the washer-dryer which concerns on embodiment is effective. It is a schematic explanatory drawing which shows an example of the measured value of the drainage temperature sensor in the case where the cooling function of the water cooling part (cooling part) of the washer-dryer which concerns on embodiment is invalid.

Hereinafter, embodiments of the present invention (hereinafter referred to as “the present embodiments”) will be described in detail with reference to the drawings. It should be noted that each figure is merely schematically shown to the extent that the present invention can be fully understood. Therefore, the present invention is not limited to the illustrated examples. Further, in each figure, common components and similar components are designated by the same reference numerals, and duplicate description thereof will be omitted.

The present embodiment also has a technical idea of providing a washer / dryer that can solve the following problems in the conventional washer / dryer. For example, in a conventional washer / dryer, especially in a vertical type washer / dryer, a tank or an automatic charging unit (corresponding to the washing treatment liquid automatic charging means of Patent Document 1) is located above a portion where a relatively high temperature is likely to occur during a drying operation. ) Is placed. The parts that tend to be relatively hot are, for example, a heater (heating part) that is a heat source for heating the circulating air circulated inside the housing during the drying operation, a water tank through which the warm air heated by the heater passes, and the like. Is. When the distance from the part where the temperature tends to be relatively high to the tank or the automatic charging part is short, the liquid (washing treatment liquid) used for washing such as detergent and softener is heated by the heat during the drying operation. When the liquid agent (washing treatment liquid) is heated, the characteristics of the liquid agent (washing treatment liquid) change, for example, a phenomenon that the cleaning ability of the detergent is lowered or the softener is solidified and the automatic charging means (Corresponding to the automatic washing liquid charging means of Patent Document 1), there is a possibility that a phenomenon may occur in which the softener cannot be satisfactorily charged into the water tank. Therefore, in a vertical type washer-dryer, in order to secure a certain distance from the part that tends to get relatively hot to the tank or the automatic loading part, the tank is moved from above the part that tends to get relatively hot. And the placement of an automatic loading unit is being considered. According to this configuration, since the distance from the portion where the temperature tends to be relatively high to the tank or the automatic charging portion is secured at a certain level or more, it is possible to suppress heating of the liquid agent (washing treatment liquid). However, in the vertical washer-dryer with this configuration, the housing size (especially the size in the left-right direction or the front-back direction) increases by the amount of the position where the tank and the automatic loading part are shifted, so the size of the housing is reduced. Is hindered. Therefore, the present embodiment also has a technical idea of providing a washer / dryer capable of solving such a problem.

<Structure of washer / dryer>
Hereinafter, the configuration of the washer / dryer 100 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is an internal structural diagram of the washer / dryer 100 according to the present embodiment, and shows a vertical cross-sectional structure of the washer / dryer 100. FIG. 2 is an explanatory diagram showing the flow of circulating air during the drying operation of the washer / dryer 100.

In the present embodiment, it is assumed that the washer / dryer 100 is configured as a vertical washer / dryer in which the detergent tank 91 is arranged at a relatively high position near the back surface inside the housing 1. .. Further, in the present embodiment, each of the "top", "bottom", "front", "rear", "left", and "right" directions is the direction seen from the user using the washer / dryer 100. Explain as pointing.

As shown in FIGS. 1 and 2, the washer / dryer 100 according to the present embodiment has a housing 1 in which a washing / dehydrating tub 4 for storing laundry (clothes, cloth, etc.) is arranged inside. ing. A lid 40 for putting the laundry in and out of the washing / dehydrating tub 4 is arranged on the upper part of the housing 1. Further, an operation input unit 2 operated by the user is arranged in the upper portion of the housing 1 in front of the lid 40. The operation input unit 2 has a display unit 34 for displaying the operation content, and a notification sound for notifying the user that the operation has been accepted and a notification unit 35 for notifying the user of the start or end of the operation. Further, the water supply unit 8 is arranged in the upper part of the housing 1 behind the lid 40. The water supply unit 8 is a unit that takes in tap water inside and supplies it to each part. The water supply unit 8 is connected to a household faucet of water supply via a water supply port 10 and a hose (not shown), and takes in tap water from the outside to the inside. Inside the water supply port 10, a mesh-shaped filter (not shown) for removing fine foreign matter is arranged.

At the bottom of the lid 40, a lid lock 42 for restricting the opening and closing of the lid 40 and a detergent inlet 41 for manually charging a detergent, a softener, or the like are arranged. The user manually puts a detergent, a softener, or the like into the detergent inlet 41 according to the amount of laundry.

Inside the housing 1, an outer tub 3 for storing washing water is arranged. The outer tank 3 is elastically supported by an elastic support (not shown). A washing / dehydrating tub 4 is arranged inside the outer tub 3. A through hole 5 for water passage and ventilation is formed in the peripheral wall of the washing / dehydrating tub 4. The washing / dehydrating tub 4 is rotationally driven by a motor 6 as a driving means arranged on the bottom surface of the outer tub 3.

Inside the washing / dehydrating tank 4, a stirring blade 7 that is rotationally driven by a motor 6 is arranged. The stirring blade 7 is controlled to alternately repeat forward rotation and reverse rotation in order to stir the laundry during the washing operation, the rinsing operation, and the drying operation.

A detergent tank 91 and an automatic detergent charging unit 9 are arranged at a relatively high position near the back surface inside the housing 1. The detergent tank 91 is a tank for storing a liquid agent (washing treatment liquid) such as a detergent or a softener. The detergent automatic charging unit 9 is an automatic charging unit that automatically charges the liquid agent (washing treatment liquid) stored in the detergent tank 91 into the washing / dehydrating tank 4. In the present embodiment, the detergent tank 91 and the detergent automatic charging unit 9 are arranged at positions on the front side of the water supply unit 8. Further, the detergent automatic charging unit 9 is attached to the lower part of the detergent tank 91.

When the washing / drying machine 100 starts washing, the motor 6 drives the stirring blade 7 in a predetermined rotation pattern, and the washing / drying machine 100 determines the amount of laundry based on the value of the current flowing through the motor 6.

The washer-dryer 100 charges the washing and dehydrating tub 4 with a liquid agent (washing treatment liquid) in an amount corresponding to the determination result of the amount of laundry by the detergent automatic charging unit 9 (automatic charging unit). When the liquid agent (washing treatment liquid) is put into the washing / dehydrating tank 4, the washing / drying machine 100 takes in tap water from the outside (household faucet of tap water) through the water supply unit 8 to the inside of the washing / dehydrating tank 4. Water is supplied to the inside. The water supply is controlled by the control device 16 (see FIG. 5) based on the signal of the water level sensor 26.

In the present embodiment, the water supply unit 8 has a plurality of valves such as a water supply valve 36, a softener valve 37, a shower valve 38, and a cooling valve 39 inside. The water supply valve 36 is a valve provided at the entrance of a pipe used for supplying tap water to the washing / dehydrating tank 4. The softener valve 37 is a valve provided at the entrance of a pipe used for supplying tap water to a softener case (not shown) in which a softener is stored. The shower valve 38 is a valve provided at the entrance of a pipe used when tap water is widely supplied to the inside of the washing / dehydrating tank 4. The cooling valve 39 is a valve provided at the entrance of a pipe used when tap water is supplied as cooling water to the drying duct 11 during water cooling, dehumidification and water supply in the drying operation. The washer / dryer 100 switches the water flow path and supplies tap water to each part by controlling the opening and closing of each valve provided inside the water supply unit 8 according to the application. The switching of the water flow path is controlled by the control device 16 (see FIG. 5).

For example, the washer / dryer 100 supplies water to the washing / dehydrating tank 4 by opening the water supply valve 36 during the washing step (step S24 in FIG. 6) described later. At that time, the washer / dryer 100 may supply water to the inside of the washing / dehydrating tank 4 in a wide range by opening the shower valve 38.

Further, the washer / dryer 100 supplies water to the softener case (not shown) in which the softener is stored by opening the softener valve 37 during the rinsing step (steps S28 and S34 in FIG. 6) described later. The softener is put into the washing / dehydrating tank 4.

Further, the washer / dryer 100 supplies water to the drying duct 11 by opening the cooling valve 39 during the water-cooled dehumidifying / supplying water step (step S37 in FIG. 6) of the drying operation described later. At that time, the washing / drying machine 100 is configured so that tap water (cooling water) supplied to the drying duct 11 passes through the inside of the water cooling unit 14 described later.

The washer / dryer 100 has a water cooling unit 14 and a detection unit 200 (see FIG. 5). The water cooling unit 14 is a cooling unit that cools the liquid agent (washing treatment liquid) supplied to the washing / dehydrating tank 4. The detection unit 200 (see FIG. 5) is a functional unit that detects whether or not the cooling function (water cooling function) of the water cooling unit 14 (cooling unit) is effective. In the present embodiment, the detection unit 200 (see FIG. 5) detects the temperature of the air (circulating air) circulated inside the housing 1 based on the measured value of the circulating air temperature sensor 21. Further, the detection unit 200 (see FIG. 5) detects the temperature of the warm air after passing through the laundry during the drying operation based on the measured value of the drainage temperature sensor 23.

The water cooling unit 14 is arranged between the heater 24 (heating unit) described later and the detergent tank 91. That is, the water cooling unit 14 is arranged above the heater 24 (heating unit) and below the detergent tank 91. The water cooling unit 14 has a flow path 14b (see FIGS. 3B and 4A to 4C) through which water (cooling water) for cooling the liquid agent (washing liquid) flows.

In the present embodiment, the water cooling unit 14 is configured to be mounted on the lower part of the detergent automatic charging unit 9. The water cooling unit 14 cools at least the detergent charging pipe 92 (loading pipe) provided in the detergent automatic charging unit 9 in order to guide the liquid agent (washing treatment liquid) from the detergent tank 91 to the washing / dehydrating tank 4. It has become.

The lower portion of the water cooling portion 14 is preferably made of a resin material that is harder to transfer heat than a metal material so that heat from the heater 24 (heating part) or the like is hard to be transferred to the liquid agent (washing treatment liquid). .. Further, in the upper part of the water cooling unit 14, the cold air of the cooling water flowing through the flow path 14b (see FIGS. 3B and 4A to 4C) is the liquid agent (washing treatment liquid) inside the detergent input pipe 92 and the detergent input pipe 92. It is preferable that the material is made of a metal material that easily transfers heat so that the water can be easily transferred to the water.

In the present embodiment, the water cooling unit 14 is configured to come into contact with at least a part of the detergent charging pipe 92 provided in the detergent automatic charging unit 9. The water cooling unit 14 heats the cooling water flowing through the flow path 14b (see FIGS. 3B and 4A to 4C) and the liquid agent (washing liquid) inside the detergent charging pipe 92 and the detergent charging pipe 92. Make a replacement. As a result, the water cooling unit 14 can cool the liquid agent (washing treatment liquid) inside the detergent charging pipe 92 and the detergent charging pipe 92. Further, the water cooling unit 14 indirectly cools the liquid agent (washing treatment liquid) inside the detergent input pipe 92 and the detergent input pipe 92 to indirectly charge the liquid agent (washing treatment liquid) inside the detergent tank 91 and the detergent tank 91. It can also be cooled to.

The water cooling unit 14 may be configured to abut not only the detergent charging pipe 92 but also another portion of the detergent automatic charging unit 9 to cool the portion. Further, the water cooling unit 14 may be configured to abut on the detergent tank 91 to directly cool the liquid agent (washing treatment liquid) inside the detergent tank 91 or the detergent tank 91.

A drying duct 11 connected to the outer tank 3 by a drying duct connecting portion 27 is arranged near the back surface inside the housing 1. A ventilation unit 20 is arranged on the upper part of the drying duct 11 to blow air. Further, a warm air air passage 25 is arranged between the air blower unit 20 and the washing / dehydrating tank 4. The outer tank 3, the drying duct connecting portion 27, the drying duct 11, the air blowing unit 20, and the warm air air passage 25 form a path for air to circulate during the drying operation.

The blower unit 20 includes a blower fan 12, a circulating air temperature sensor 21, a warm air temperature sensor 22, and a heater 24 (heating unit). The circulating air temperature sensor 21 is a sensor that detects the temperature of the air (circulating air) that has been heated by the heater 24 (heating unit) and then circulated inside the housing 1 and returned to the position in front of the heater 24. .. The hot air temperature sensor 22 is a sensor that detects the temperature of the air (warm air) heated by the heater 24 (heating unit).

The flow of warm air in the drying operation step (step S37 in FIG. 6) described later in FIG. 2 is indicated by a white arrow. At the time of the drying operation step (step S37 in FIG. 6) described later, inside the washer / dryer 100, the air produced by the blower unit 20 becomes warm air by passing through the heater 24, and the warm air blower passage 25 is provided. It is sent to the laundry inside the washing / dehydrating tub 4 via the washing / dehydrating tub 4. When the laundry is warmed by the warm air, the moisture evaporated from the laundry is generated. The warm air flows downstream in a state containing evaporated water, passes through the drying duct connecting portion 27, and flows into the drying duct 11. Further, the warm air passes through the blower unit connection portion 28 and returns to the blower unit 20 as circulating air. The circulating air returns to the heater 24 via the blower unit 20 and circulates as warm air in the same path as the previous time.

Further, in the drying operation step (step S37 in FIG. 6) described later, inside the washing / drying machine 100, tap water taken in from a household faucet of tap water is used as cooling water for dehumidifying hot air. used. At this time, the cooling water is temporarily stored in the water supply unit 8. Then, the cooling water flows from the water supply unit 8 to the inside of the water cooling unit 14 via the water cooling unit connecting pipe 13. Inside the water cooling unit 14, a flow path 14b (see FIGS. 3B and 4A to 4C) for flowing cooling water is formed. When the cooling water exceeds a predetermined water level inside the flow path 14b (for example, when the inside of the flow path 14b is filled with the cooling water), the cooling water flows out from the water cooling portion 14 to the cooling water pipe 15 and enters the drying duct 11. It flows in. Inside the drying duct 11, the warm air containing a large amount of water is cooled by the cooling water that flows down, and the water in the warm air is condensed to generate dew condensation water and dehumidify the warm air. The condensed and recovered dew condensation water mixes with the cooling water, flows down the drying duct 11, passes through the drying duct connection portion 27, the drain valve 18, and the drain hose 19, and is discharged to the outside of the washing / drying machine 100. The warm air dehumidified by ascending the drying duct 11 goes to the heater 24.

The washing / drying machine 100 detects the temperature of the hot air (air heated by the heater 24) described above by the warm air temperature sensor 22 during the drying operation step (step S37 in FIG. 6) described later, and the circulating air described above. The temperature of (the air that has been heated by the heater 24 and then circulated inside the housing 1 and returned to the position in front of the heater 24) is detected by the circulating air temperature sensor 21, and the temperature of the warm air and the circulating air Perform drying operation while monitoring the temperature.

Further, the washer / dryer 100 controls to reduce the output of the heater 24 when the temperature of the warm air or the temperature of the circulating air is higher than the predetermined temperature after the water-cooled dehumidifying / supplying water step (step S37b in FIG. 6) described later. I do. In the present embodiment, when the temperature of the circulating air is higher than the predetermined temperature Tz (see FIGS. 9 and 10), the output of the heater 24 is controlled to be lowered.

Further, the washer / dryer 100 drains the temperature of the warm air after passing through the laundry in the water-cooled dehumidifying / supplying water step (step S37b in FIG. 6) described later in the drying operation step (step S37 in FIG. 6) described later. The drying operation is performed while detecting with the temperature sensor 23 and monitoring the temperature of the warm air after passing through the laundry.

Further, in the washing / drying machine 100, the temperature of the dehumidified / cooled air detected after the water-cooled dehumidifying / supplying water step (step S37b in FIG. 6) described later is the temperature of the dehumidified / cooled air detected before the water-cooled dehumidifying / cooling water supply step. If the temperature is higher than the temperature, the drying operation is stopped.

<Structure of water cooling part>
3A to 4C show a specific configuration of the water cooling unit 14. 3A and 3B are a perspective view of a water cooling unit (cooling unit) mounted on the detergent automatic charging unit (automatic charging unit) of the washer / dryer 100, and a front view of the water cooling unit (cooling unit), respectively. 4A, 4B, and 4C are a perspective view, a top view, and a front view of a water-cooled portion (cooling portion) of the washer / dryer 100, respectively.

As shown in FIGS. 3A and 3B, in the present embodiment, the water cooling unit 14 is configured to be mounted on the lower part of the detergent automatic charging unit 9.

As shown in FIGS. 3B and 4A to 4C, the water cooling unit 14 includes an introduction port 14a for introducing the cooling water supplied from the water supply unit 8 into the inside, a flow path 14b for flowing the cooling water, and cooling water. It is provided with a discharge port 14c for discharging the water to the outside. Further, the water cooling unit 14 is provided with a charging pipe cooling unit 14d on which the detergent charging pipe 92 of the detergent automatic charging unit 9 is placed and which cools the detergent charging pipe 92.

The water cooling unit 14 introduces the cooling water supplied from the water supply unit 8 into the inside through the introduction port 14a. The cooling water flows inside the flow path 14b. The flow path 14b has a plurality of layered structures in the vertical direction. Here, it is assumed that the flow path 14b has a two-layer structure of an upper layer and a lower layer. The upper layer of the flow path 14b is provided with an opening leading to the lower layer. The cooling water introduced into the water cooling unit 14 is first stored in the upper layer of the flow path 14b. When the cooling water exceeds a predetermined water level inside the upper layer of the flow path 14b (for example, when the inside of the flow path 14b is filled with the cooling water), the cooling water falls to the lower layer through the opening. The cooling water that has fallen to the lower layer flows out from the water cooling unit 14 to the cooling water pipe 15 through the discharge port 14c. The cooling water that has flowed out into the cooling water pipe 15 (see FIG. 1) flows into the drying duct 11 (see FIG. 1). The water cooling unit 14 cools the liquid agent (washing treatment liquid) by flowing the cooling water used in the water cooling / dehumidifying / supplying water in the drying operation to the flow path 14b.

The water cooling unit 14 is cooled to a temperature similar to the cooling water temperature by constantly flowing cooling water during the drying operation. Therefore, the washing / drying machine 100 does not affect the liquid (washing liquid) inside the detergent tank 91, the detergent charging pipe 92, and the detergent automatic charging unit 9 with heat during the drying operation, and the liquid (washing liquid). Can be cooled. Therefore, the washer / dryer 100 can suppress the heating of the liquid agent (washing treatment liquid) stored inside the detergent tank 91 and the detergent automatic charging unit 9.

It is desirable that the water cooling unit 14 is in contact with or in close contact with the detergent automatic charging unit 9 and the detergent automatic charging unit 9. In the present embodiment, the water cooling unit 14 is mounted on the lower part of the detergent automatic charging unit 9 and is arranged so as to be in contact with the detergent charging pipe 92 of the detergent automatic charging unit 9. However, by arranging the water cooling unit 14 at the bottom or inside of the detergent tank 91, the liquid agent (washing treatment liquid) inside the detergent tank 91 can be directly cooled.

FIG. 5 shows the configuration of the control device 16 of the washer / dryer 100. FIG. 5 is a block diagram of the control circuit of the washer / dryer 100. The control device 16 is mainly composed of a microcomputer 31.

The microcomputer 31 controls a water supply unit 8, a detergent automatic charging unit 9, a drain valve 18, a display unit 34, a notification unit 35, a water supply valve 36, a softener valve 37, a shower valve 38, a cooling valve 39, a lid lock 42, and the like. Can be done.

Further, the microcomputer 31 can drive and control the motor 6 via the inverter circuit 33 based on the information of the rotation sensor 17.

Further, the microcomputer 31 drives and controls the blower fan 12 during the drying operation, and also controls the energization of the heater 24 via the heater drive circuit 32 to switch the heater 24 from strong / weak / off. The output can be controlled.

Further, the microcomputer 31 can determine whether or not the laundry is dry based on each temperature detected by the circulating air temperature sensor 21, the warm air temperature sensor 22, and the drainage temperature sensor 23.

<Operation of washer / dryer>
Hereinafter, the operation of the washer / dryer 100 will be described with reference to FIGS. 6 and 7. FIG. 6 is a flowchart showing the operation of the washing / drying operation of the washer / dryer 100. FIG. 7 is a flowchart showing the operation of the drying operation of the washer / dryer 100.

For example, it is assumed that the user puts the laundry into the washing / dehydrating tub 4 and instructs the washing / drying machine 100 to start the washing / drying operation from the operation input unit 2. Then, as shown in FIG. 6, the washer / dryer 100 performs the following operations from step S21 to step S38.

First, the washer / dryer 100 drives the stirring blade 7 with a predetermined rotation pattern by the motor 6, and determines (confirms) the amount of laundry (cloth amount) based on the current value flowing through the motor 6 (step S21). At this time, the washer / dryer 100 displays the estimated time until the end of the operation on the display unit 34. Then, the washing / drying machine 100 charges the washing / dehydrating tub 4 with the amount of detergent (detergent liquid) corresponding to the determination result (confirmation result) of the amount of laundry by the detergent automatic charging unit 9 (automatic charging unit) (the washing / dehydrating tank 4). Step S22).

Next, the washing / drying machine 100 takes in tap water from the outside (water tap for household use) via the water supply unit 8 and supplies (watering) the taken-in tap water to the inside of the washing / dehydrating tank 4. (Step S23). When the amount of tap water corresponding to the determination result (confirmation result) of the amount of laundry is accumulated inside the washing / dehydrating tank 4, the washer / dryer 100 rotates the stirring blade 7 by the motor 6 to drive the detergent. The used laundry is washed (step S24). When the washing process is completed, the washer / dryer 100 discharges (drains) the water inside the washing / dehydrating tub 4 to the outside (step S25), and the washing / dehydrating tub 4 is rotationally driven by the motor 6 to perform the dehydration process. (Step S26).

Next, the washing / drying machine 100 takes in tap water from the outside (water tap for household use) via the water supply unit 8 and supplies (watering) the taken-in tap water to the inside of the washing / dehydrating tank 4. (Step S27). When the amount of tap water corresponding to the determination result (confirmation result) of the amount of laundry is accumulated inside the washing / dehydrating tank 4, the washer / dryer 100 performs the first rinsing treatment (step S28). In the first rinsing process, the stirring blade 7 is rotationally driven by the motor 6 to stir the laundry, so that the laundry is washed with the detergent and the detergent soaked in the laundry is supplied to the washing / dehydrating tub 4. The process of releasing it into water is performed. After the first rinsing process is completed, the washer / dryer 100 discharges (drains) the water inside the washing / dehydrating tub 4 to the outside (step S29), and the motor 6 rotates the washing / dehydrating tub 4 to drive the washing / dehydrating tub 4. , Dehydration treatment is performed (step S30).

Next, the washing / drying machine 100 takes in tap water from the outside (water tap for household use) via the water supply unit 8 and supplies (watering) the taken-in tap water to the inside of the washing / dehydrating tank 4. (Step S31). When the amount of tap water corresponding to the determination result (confirmation result) of the amount of laundry is accumulated inside the washing / dehydrating tub 4, the washer / dryer 100 corresponds to the determination result (confirmation result) of the amount of laundry. An amount of the softener (softener liquid) is charged into the washing / dehydrating tank 4 by the detergent automatic charging unit 9 (automatic charging unit) (step S32).

Next, the washing / drying machine 100 takes in tap water from the outside (water tap for household use) via the water supply unit 8 and supplies (watering) the taken-in tap water to the inside of the washing / dehydrating tank 4. (Step S33). When an amount of tap water corresponding to the determination result (confirmation result) of the amount of laundry is accumulated inside the washing / dehydrating tank 4, the washer / dryer 100 performs a second rinsing process (step S34). In the second rinsing process, the stirring blade 7 is rotationally driven by the motor 6 to stir the laundry, so that the laundry is immersed in the softener and the softener soaked in the laundry is supplied to the washing / dehydrating tank 4. A treatment is performed to release the water into the water. After the second rinsing process is completed, the washer / dryer 100 discharges (drains) the water inside the washing / dehydrating tub 4 to the outside (step S35), and the motor 6 rotates the washing / dehydrating tub 4 to drive the washing / dehydrating tub 4. , The final dehydration treatment is performed (step S36).

Next, the washer / dryer 100 performs a drying operation for drying the laundry (step S37). In the step S37, the washer / dryer 100 performs a heating / blowing step (step S37a), a water-cooled dehumidifying / dehumidifying / supplying step (step S37b), and a drying confirmation step (step S37c).

In the heating and blowing step of step S37a, the washer / dryer 100 creates heated air (warm air) by circulating the air inside the housing 1 by the blowing unit 20 while heating the air by the heater 24. , Warm air is passed through the laundry inside the washing / dehydrating tub 4.

When the laundry is warmed by the warm air, the moisture evaporated from the laundry is generated. The warm air flows downstream in a state containing evaporated water, passes through the drying duct connecting portion 27, and flows into the drying duct 11. Further, the warm air passes through the blower unit connection portion 28 and returns to the blower unit 20 as circulating air. The circulating air returns to the heater 24 via the blower unit 20 and circulates as warm air in the same path as the previous time.

Since the amount of water that evaporates from the laundry is small when the temperature of the laundry is low, the washer / dryer 100 carries out the heating and blowing step of step S37a for about 15 minutes. When the evaporation of water from the laundry is started by the heating air, the washer / dryer 100 starts the water-cooled dehumidifying / supplying step of step S37b.

In the water-cooled dehumidifying / supplying water step of step S37b, the washing / drying machine 100 takes in tap water (cooling water) from the outside (water supply household faucet) into the water supply unit 8 through the water supply port 10, and the water cooling unit connecting pipe from the water supply unit 8. Water is passed through 13. Then, the washer / dryer 100 supplies (supplys) cooling water to the water cooling unit 14. When the water cooling portion 14 is filled with water, the cooling water flows into the drying duct 11 via the cooling water pipe 15. Even in the water-cooled dehumidifying / supplying water step of step S37b, the washer / dryer 100 continues to heat and blow air. That is, the washer / dryer 100 continues to circulate the air inside the housing 1 by the blower unit 20 while heating the air by the heater 24.

In this way, the washing / drying machine 100 takes in tap water (cooling water) from the outside (water supply household faucet) through the water supply unit 8 and takes in tap water (cooling water) through the water cooling unit 14. It is supplied to the drying duct 11. The inside of the water cooling unit 14 is a space through which water can pass. The washing / drying machine 100 crawls the cooling water used in the water cooling / dehumidifying / supplying step of step S37b and the blast cooling step of step S38 to crawl a part of the detergent automatic charging unit 9 (detergent charging pipe 92 in this embodiment). Cooling.

Inside the drying duct 11, the warm air passing through the inside of the drying duct 11 is cooled by the cooling water, and the moisture contained in the warm air is condensed. As a result, dew condensation water is generated and warm air is dehumidified. The condensed dew condensation water mixes with the cooling water, flows down the drying duct 11, passes through the drying duct connection portion 27, the drain valve 18, and the drain hose 19, and is discharged to the outside of the washing / drying machine 100.

The washing / drying machine 100 monitors the temperature of the air during the drying operation by the warm air temperature sensor 22, the drainage temperature sensor 23, and the circulating air temperature sensor 21. For example, the washer / dryer 100 monitors the temperature of the air (warm air) immediately after being heated by the heater 24 with the warm air temperature sensor 22. Further, the washer / dryer 100 monitors the temperature of the warm air after passing through the laundry with the drainage temperature sensor 23. Further, the washer / dryer 100 monitors the temperature of the air (circulating air) when it is dehumidified and cooled by cooling water after passing through the laundry and returned to the blowing unit 20 again with the circulating air temperature sensor 21.

In the drying confirmation step of step S37c, the washer / dryer 100 confirms that the laundry has dried. At this time, the washing / drying machine 100 confirms that the laundry has dried by detecting, for example, that the measured value of the circulating air temperature sensor 21 and the measured value of the drainage temperature sensor 23 have reached a predetermined temperature. ..

When the drying of the laundry is confirmed in step S37c, the washer / dryer 100 blows the cooling air to the laundry inside the washing / dehydrating tub 4 (step S38). At this time, the washing / drying machine 100 stops the heater 24 and cools the air circulating inside the housing 1 with the cooling water supplied to the drying duct 11, while washing and removing the cooled air (cooling air). Pass it through the laundry inside the water tank 4.

When the washing / drying machine 100 performs the processes from step S21 to step S38, the operation is terminated. In the case of the washing operation, the operation is completed by the final dehydration step of step S36. In these series of operations, the household faucet of the water supply connected to the water supply port 10 is in a state where water can be supplied to the washer / dryer 100.

In the above-mentioned operation of the washing / drying machine 100, when the vibration of the outer tub 3 accommodating the washing / dehydrating tub 4 becomes large during the dehydration step of steps S26 and S29, the vibration is detected by the acceleration sensor 30. Then, the washing / drying machine 100 takes measures such as lowering the dehydration rotation speed of the motor 6 rotating the washing / dehydrating tub 4 or stopping the motor 6 by the brake.

The washer / dryer 100 can only perform a drying operation, for example, as described below.

For example, it is assumed that the user puts the laundry into the washing / dehydrating tub 4 and instructs the washing / drying machine 100 to start the drying operation from the operation input unit 2. Then, as shown in FIG. 7, the washer / dryer 100 performs only the processes of step S21, step S37, and step S38 described above.

The washing / drying machine 100 dries the cooling water via the water cooling unit 14 (cooling unit) in the steps from the water-cooled dehumidifying / supplying water step (step S37b) to the cooling air blowing process (step S38) in the drying operation step (step S37). Send to duct 11. The water cooling unit 14 is configured so that the cooling water flows at least around an intermediate portion of the detergent input pipe 92. Such a water cooling unit 14 can cool the detergent input pipe 92 and the liquid agent (washing treatment liquid) accumulated in the detergent input pipe 92 by using the cooling water supplied from the outside during the drying operation. Further, by cooling the detergent input pipe 92, the water cooling unit 14 can also cool the detergent tank 91 connected to the detergent input pipe 92 and the liquid agent accumulated in the detergent tank 91.

Further, in the washer / dryer 100, the detergent tank 91 and the detergent automatic charging unit 9 are likely to have a relatively high temperature (for example, a heater 24 which is a heat source during the drying operation, and a washing machine where the temperature is raised by warm air during the drying operation. It is not necessary to secure a certain distance or more from the dehydration tank 4 etc.). That is, in the washing / drying machine 100, the detergent tank 91 and the detergent automatic charging unit 9 can be arranged close to a portion where the temperature tends to be relatively high. Therefore, the washing / drying machine 100 can reduce the size of the main body (the size of the housing 1). In particular, when the washer / dryer 100 is a vertical type, the size of the main body (size of the housing 1) can be reduced.

The washing / drying machine 100 detects the temperature of the circulating air with the circulating air temperature sensor 21 during the drying operation, and detects the temperature of the warm air after passing through the laundry with the drainage temperature sensor 23. Therefore, it can be determined whether or not the cooling function (water cooling function) of the water cooling unit 14 is functioning normally.

In the present embodiment, during the drying operation of step S37, the washer / dryer 100 has a detection unit 200 (see FIG. 5) in which the temperature of the circulating air circulating inside the housing 1 is a predetermined temperature Tz (FIGS. 9 and 9). 10) is exceeded. Thereby, the washer / dryer 100 can determine whether or not the cooling function of the water cooling unit 14 (cooling unit) is effective.

Hereinafter, this operation will be described with reference to FIGS. 8 to 10. FIG. 8 is a flowchart showing the operation of the washer / dryer 100 during the drying operation. FIG. 9 is a schematic explanatory view showing an example of the measured values of the circulating air temperature sensor when the cooling function of the water cooling unit 14 of the washing / drying machine 100 is effective. FIG. 10 is a schematic explanatory view showing an example of the measured values of the circulating air temperature sensor when the cooling function of the water cooling unit 14 of the washing / drying machine 100 is invalid. In FIGS. 9 and 10, the graph shows the temperature of the circulating air detected by the circulating air temperature sensor 21 (see FIG. 5).

As shown in FIG. 8, for example, during the drying operation of step S37 of FIG. 6 or FIG. 7, the detection unit 200 of the housing 1 is based on the measured value of the circulating air temperature sensor 21 (see FIG. 5). The temperature of the circulating wind circulating inside is repeatedly detected (step S51).

Then, in the detection unit 200, the temperature of the circulating air detected by the circulating air temperature sensor 21 (see FIG. 5) after the water-cooled dehumidifying / supplying water step of step S37b in FIG. (See FIG. 10) is determined (step S52). As a result, the detection unit 200 determines whether or not the cooling function of the water cooling unit 14 is effective.

At this time, if the cooling function of the water cooling unit 14 is effective (that is, if the water cooling unit 14 is functioning normally), for example, as shown in the graph of FIG. 9, after the start of the water cooling / dehumidifying / supplying water, the circulating air The amount of increase in temperature decreases.

To elaborate on the phenomenon of FIG. 9, during the drying operation, the circulating air is heated by the heated air blower from the heating air blowing step of step S37a of FIG. 6 or 7 to the start of the water cooling dehumidifying water supply step of step S37b. .. As a result, the temperature of the circulating wind continues to rise. Then, when the laundry is sufficiently heated, the washer / dryer 100 starts the water-cooled dehumidifying / supplying water step of step S37b of FIG. 6 or FIG. Then, the circulating air is cooled by the cooling water. As a result, the amount of increase in the temperature of the circulating air decreases (becomes gradual). In this case, the temperature of the circulating air does not exceed the predetermined temperature Tz.

On the other hand, if the cooling function of the water cooling unit 14 is invalid (that is, if the water cooling unit 14 is not functioning normally), for example, as shown in the graph of FIG. 10, after the start of the water cooling / dehumidifying / supplying water, the circulating air The temperature keeps rising.

The case where the cooling function of the water cooling unit 14 is invalid means that, for example, the cooling valve 39 (see FIG. 1) to be opened continues to be closed, or the user keeps the household faucet closed. For example, when the drying operation process of No. 7 is instructed.

To elaborate on the phenomenon of FIG. 10, during the drying operation, the circulating air is heated by the heating air from the heating air blowing step of step S37a of FIG. 6 or 7 to the water cooling dehumidifying water supply step of step S37b. As a result, the temperature of the circulating wind continues to rise. Then, when the laundry is sufficiently heated, the washer / dryer 100 starts the water-cooled dehumidifying / supplying water step of step S37b of FIG. 6 or FIG. At this time, for example, the cooling valve 39 (see FIG. 1) to be opened continues to be closed, or the user instructs the drying operation step of FIG. 7 with the household faucet closed to perform water cooling. It is assumed that the cooling function of the unit 14 is disabled. In this case, even if the water-cooled dehumidifying / supplying water step of step S37b is started, the cooling water is not supplied (supplied) to the water cooling unit 14, so that the circulating air is not cooled. As a result, the amount of increase in the temperature of the circulating wind as shown in FIG. 10 is larger than that in the case shown in FIG. Therefore, the temperature of the circulating air becomes high, and after a while, the predetermined temperature Tz is exceeded.

In the determination of step S52, as shown in FIG. 9, when the temperature of the circulating air does not exceed the predetermined temperature Tz (in the case of "No"), the detection unit 200 determines that the cooling function of the water cooling unit 14 is effective. judge. In this case, the detection unit 200 causes the control unit 300 (see FIG. 5) to continue the operation of the drying operation (step S53).

On the other hand, in the determination of step S52, as shown in FIG. 10, when the temperature of the circulating air exceeds the predetermined temperature Tz (in the case of "Yse"), the cooling function of the water cooling unit 14 of the detection unit 200 is invalid. Judge that there is. In this case, the detection unit 200 causes the control unit 300 (see FIG. 5) to lower the heating temperature of the heater 24 (heating unit) (step S54).

After the process of step S53 or step S54, the washer / dryer 100 determines whether or not the drying operation is completed (step S55). If it is determined in step S55 that the drying operation has not been completed (in the case of "No"), the process returns to step S51. On the other hand, when it is determined in step S55 that the drying operation has been completed (in the case of "Yes"), the process ends.

When the temperature of the circulating air exceeds the predetermined temperature Tz (when the determination in step S52 is “Yes”), the washer-dryer 100 operates by reducing the output of the heater 24. As a result, the washer / dryer 100 instructs the drying operation step of FIG. 7 in a state where the cooling valve 39 (see FIG. 1) to be opened keeps closing or the user keeps the household faucet closed by any chance. Even when the cooling function of the water cooling unit 14 becomes invalid, the heating of the liquid agent (washing treatment liquid) can be suppressed.

It is desirable that the predetermined temperature Tz is set in a temperature range that does not reach when the cooling function of the water cooling unit 14 is effective, and in the present embodiment, it will be described as being set to, for example, 70 degrees.

Further, in the present embodiment, during the drying operation of step S37, the washer / dryer 100 is the cooling water supplied to the drying duct 11 through the water cooling unit 14 (cooling unit) by the detection unit 200 (see FIG. 5). It is determined whether or not the temperature of the dehumidified and cooled air exceeds the predetermined temperature Tz. Thereby, the washer / dryer 100 can determine whether or not the cooling function of the water cooling unit 14 (cooling unit) is effective.

Hereinafter, this operation will be described with reference to FIGS. 11 to 13. FIG. 11 is a flowchart showing another operation of the washer / dryer 100 during the drying operation. FIG. 12 is a schematic explanatory view showing an example of the measured value of the drainage temperature sensor when the cooling function of the water cooling unit 14 of the washing / drying machine 100 is effective. FIG. 13 is a schematic explanatory view showing an example of the measured value of the drainage temperature sensor when the cooling function of the water cooling unit 14 of the washing / drying machine 100 is invalid. In FIGS. 12 and 13, the graph shows the temperature of the warm air after passing through the laundry detected by the drainage temperature sensor 23 (see FIG. 5).

As shown in FIG. 11, for example, during the drying operation of step S37 of FIG. 6 or FIG. 7, the detection unit 200 passed through the laundry based on the measured value by the drainage temperature sensor 23 (see FIG. 5). The temperature of the subsequent warm air is repeatedly detected (step S71).

Then, the detection unit 200 passes the warm air detected by the drainage temperature sensor 23 (see FIG. 5) at a predetermined timing before and after the water-cooled dehumidifying / supplying water step of step S37b in FIG. 6 or FIG. It is determined whether or not the temperature of the first temperature Ta, the second temperature Tb, and the third temperature Tc increase in this order (step S72). As a result, the detection unit 200 (see FIG. 5) determines whether or not the cooling function of the water cooling unit 14 (cooling unit) is effective.

The first temperature Ta is the temperature of the warm air after passing through the laundry detected during the heating air blowing in step S37a of FIG. 6 or FIG. The first temperature Ta is detected before the start of the water-cooled dehumidifying / supplying water step of step S37b. The second temperature Tb is the temperature of the warm air after passing through the laundry detected at the start of the water-cooled dehumidifying water supply step (or immediately after the start of the water-cooled dehumidifying water supply step) in step S37b. The second temperature Tb is detected after the first temperature Ta. The third temperature Tc is the temperature of the warm air after passing through the laundry detected after the start of the water-cooled dehumidifying / supplying water step of step S37b. The third temperature Tc is detected after the second temperature Tb. In the present embodiment, the third temperature Tc will be described as being acquired 5 minutes after the start of the water-cooled dehumidifying / supplying water step of step S37b.

At this time, if the cooling function of the water cooling unit 14 is effective (that is, if the water cooling unit 14 is functioning normally), for example, as shown in the graph of FIG. 12, after the start of the water cooling / dehumidifying / supplying water, the laundry is washed. The temperature of the warm air after passing through drops. That is, in this case, the third temperature Tc detected after the start of the water-cooled dehumidifying water supply is lower than the second temperature Tb detected at the start of the water-cooled dehumidifying water supply (or immediately after the water-cooled dehumidifying water supply step). Therefore, the temperature of the warm air after passing through the laundry detected by the drainage temperature sensor 23 (see FIG. 5) does not increase in the order of the first temperature Ta, the second temperature Tb, and the third temperature Tc.

On the other hand, if the cooling function of the water cooling unit 14 is invalid (that is, if the water cooling unit 14 is not functioning normally), for example, as shown in the graph of FIG. 13, even after the start of the water cooling / dehumidifying / supplying water, the laundry is washed. The temperature of the warm air after passing rises. That is, in this case, the third temperature Tc detected after the start of the water-cooled dehumidifying water supply is higher than the second temperature Tb detected at the start of the water-cooled dehumidifying water supply (or immediately after the water-cooled dehumidifying water supply step). Therefore, the temperature of the warm air after passing through the laundry detected by the drainage temperature sensor 23 (see FIG. 5) increases in the order of the first temperature Ta, the second temperature Tb, and the third temperature Tc.

In the determination of step S72, as shown in FIG. 12, the temperature of the warm air after passing through the laundry detected by the drainage temperature sensor 23 (see FIG. 5) is the first temperature Ta, the second temperature Tb, and the second. When the temperature does not increase in the order of the three temperatures Tc (in the case of "No"), the detection unit 200 determines that the cooling function of the water cooling unit 14 is effective. In this case, the detection unit 200 causes the control unit 300 (see FIG. 5) to continue the operation of the drying operation (step S73). After the process of step S73, the washer / dryer 100 determines whether or not the drying operation is completed (step S74). If it is determined in step S74 that the drying operation has not been completed (in the case of "No"), the process returns to step S71. On the other hand, when it is determined in step S74 that the drying operation has been completed (in the case of "Yes"), the process ends.

Further, in the determination of step S72, as shown in FIG. 13, the temperature of the warm air after passing through the laundry detected by the drainage temperature sensor 23 (see FIG. 5) is the first temperature Ta and the second temperature Tb. When the temperature increases in the order of the third temperature Tc (in the case of "Yse"), the detection unit 200 determines that the cooling function of the water cooling unit 14 is invalid. In this case, the detection unit 200 causes the control unit 300 (see FIG. 5) to stop the drying operation (step S75). This ends the process.

In such a washer / dryer 100, when the temperature of the warm air after passing through the laundry detected by the drainage temperature sensor 23 increases in the order of the first temperature Ta, the second temperature Tb, and the third temperature Tc ( In the case of "Yse" in the determination of step S72), the drying operation is stopped. As a result, the washer / dryer 100 instructs the drying operation step of FIG. 7 in a state where the cooling valve 39 (see FIG. 1) to be opened keeps closing or the user keeps the household faucet closed by any chance. Even when the cooling function of the water cooling unit 14 becomes invalid, the heating of the liquid agent (washing treatment liquid) can be suppressed.

As shown in FIG. 12, when the cooling function of the water cooling unit 14 is effective, the second temperature Tb acquired at the start of the water cooling dehumidifying / dehumidifying water supply step (step S37b in FIG. 6 or FIG. 7) is the highest. Then, the third temperature Tc acquired after the second temperature Tb is lower than the second temperature Tb because the cooling water flowing into the drying duct 11 cools the warm air.

As described above, in the washer / dryer 100, as shown in FIG. 12, by confirming that the third temperature Tc is lower than the second temperature Tb, the cooling water surely flows into the inside of the housing 1. It can be determined that it is. Further, the washer / dryer 100 is surely supplied with water to the water cooling unit 14 arranged on the path of the water supply port 10 and the cooling water pipe 15, and it can be confirmed that the water cooling unit 14 is functioning.

On the other hand, in the washing / drying machine 100, as shown in FIG. 13, when the temperature of the warm air after passing through the laundry has a relationship of first temperature Ta <second temperature Tb <third temperature Tc. By detecting this, it is possible to detect that the cooling water is not supplied to the water cooling unit 14. As a result, the washer / dryer 100 can determine that the cooling function of the water cooling unit 14 is not functioning effectively (that is, the cooling function of the water cooling unit 14 is invalid).

When it is determined that the cooling water is not supplied to the water cooling unit 14, the washing / drying machine 100 stops the drying operation, and the notification unit 35 notifies the user that the water is not supplied.

Such a washer / dryer 100 can determine whether or not the water cooling unit 14 is functioning normally. Then, when the washing / drying machine 100 determines that it is not functioning, the output of the heater 24 is lowered or the drying operation is stopped, and the notification unit 35 notifies the user of the liquid agent. It is possible to suppress the heating of (washing liquid).

As described above, according to the washer / dryer 100 according to the present embodiment, it is possible to suppress the heating of the liquid agent used for washing such as the detergent and the softener due to the heat during the drying operation.
Moreover, according to the washer / dryer 100 according to the present embodiment, the detergent tank 91 (tank) and the detergent automatic charging unit 9 (automatic charging unit) are placed close to the heater 24 (heating unit) above the heater 24 (heating unit). Can be placed. Therefore, it is possible to suppress an increase in the installation area and reduce the size of the main body (housing).

The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations. Further, it is possible to replace a part of the configuration of the embodiment with another configuration, and it is also possible to add another configuration to the configuration of the embodiment. In addition, it is possible to add / delete / replace a part of the configuration.

1 Housing 2 Operation input unit 3 Outer tank 4 Washing and dehydration tank 5 Through hole 6 Motor (driving means)
7 Stirring blade 8 Water supply unit 9 Detergent automatic charging unit (automatic charging section)
10 Water supply port 11 Drying duct 12 Blower fan 13 Water cooling part connection pipe 14 Water cooling part (cooling part)
14a Introductory port 14b Flow path 14c Outlet port 14d Input pipe Cooling unit 15 Cooling water pipe 16 Control device 17 Rotation sensor 18 Drain valve 19 Drain hose 20 Blower unit 21 Circulating air temperature sensor (circulating air temperature detecting means)
22 Hot air temperature sensor 23 Drainage temperature sensor (water temperature detection means)
24 Heater (heating part)
25 Warm air air passage 26 Water level sensor 27 Dry duct connection part 28 Blower unit connection part 30 Acceleration sensor 31 Microcomputer 32 Heater drive circuit 33 Inverter circuit 34 Display part 35 Notification part 36 Water supply valve 37 Softener valve 38 Shower valve 39 Cooling valve 40 Lid 41 Detergent inlet 42 Lidlock 91 Detergent tank (tank)
92 Detergent input piping (input piping)
100 Washer / dryer 200 Detection unit 300 Control unit Ta 1st temperature Tb 2nd temperature Tc 3rd temperature Tz Predetermined temperature

Claims (5)

With the housing
The outer tank arranged inside the housing and
A rotatable washing / dehydrating tub arranged inside the outer tub,
The driving means for rotating the washing / dehydrating tub and
A tank that stores the liquid used for washing,
A cooling unit that cools the liquid agent supplied from the tank to the washing / dehydrating tank, and
A washer / dryer having a detection unit for detecting whether or not the cooling function of the cooling unit is effective. In the washer / dryer according to claim 1,
The washing / drying machine is characterized in that the cooling unit is a water cooling unit that cools the liquid agent by using the cooling water used in the water-cooled dehumidifying / supplying water in the drying operation. In the washer / dryer according to claim 1 or 2.
It has a heating unit that heats the air circulated inside the housing.
The washing / drying machine is characterized in that the cooling unit is installed between the heating unit and the tank. In the washer / dryer according to any one of claims 1 to 3.
During the drying operation, the detection unit is returned to the temperature of the hot air heated by the heating unit or after being heated by the heating unit, circulating inside the housing and returning to a position in front of the heating unit. When the temperature of the circulating air exceeds a predetermined temperature, it is determined that the cooling function of the cooling unit is invalid, and the control unit that controls the operation of the washer / dryer is the heating unit that heats the circulating air. A washer / dryer characterized by lowering the heating temperature. In the washer / dryer according to any one of claims 1 to 4.
In the detection unit, the temperature of the warm air after being heated by the heating unit and passing through the laundry during the drying operation is the first temperature, the second temperature after the first temperature, and the second temperature. When the temperature rises in the order of the third temperature after the temperature, it is determined that the cooling function of the cooling unit is invalid, and the control unit that controls the operation of the washing / drying machine stops the drying operation. A featured washer / dryer.

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