TWI661097B - Washing and drying machine - Google Patents

Abstract

[Subject] The heating air is circulated through the air sent from the air supply means to the inner tank through the air supply path, and the cleaning liquid sprayed from the bottom of the outer tank by the circulation pump without lagging. Can produce hot water and warm air continuously. In addition, during the drying process, steam can be efficiently generated by spraying water with heating means together with warm air heating. [Solution] A washing and drying machine includes: an outer tank that can store liquid inside; a slightly cylindrical drum or an inner tank that is supported in the outer tank and can rotate freely and can be accommodated The washing means; the air supply means, which sends air to the outer tank; the air supply path, which connects the outer tank and the air supply means; the heat exchange means, which is used to heat the air in the air supply path; the sprinkler, which is And watering the water in the outer tank from the upper part of the heat exchange means; and a water storage unit for receiving water flowing down from the heat exchange means.

Description

Washing and drying machine

The present invention relates to a washing machine for washing clothes and the like, and a series of washing and drying machines from washing to drying, and more particularly to a drum-type washing and drying machine having a drum that is slightly horizontal or inclined forward.

The washing machine is a person who puts the laundry into a rotatable inner tank to perform a washing program, a washing program, and a dehydration program. The washing and drying machine is to put the laundry into a rotatable inner tank to perform a washing program, a cleaning program, and dehydration. Procedures and drying procedures. The rotating shaft with an inner groove is a drum type having a horizontal or inclined front side and a so-called upright type in which the rotating shaft is slightly perpendicular to the installation surface; however, the following description will be directed to the target drum type in this patent. In the washing program and the washing program, the drum is rotated at a low speed, the washings stored under the drum are lifted, and the turning is performed while falling from the top of the drum. Through this tumble operation, the washing object is mechanically washed and washed. In particular, the washing accompanying this operation is called a tap washing. In the dehydration process, centrifugal dehydration is performed by rotating the drum at a high speed and centrifugal force caused by the rotation to squeeze water out of the washing.

In addition, in the washing program, in order to improve the washing effect, a circulation pump is provided to impregnate the washing liquid in the washing tank (outer tank) and pour it onto the washing object, so that the washing solution in which the detergent is dissolved is impregnated. Wash things around. In this way, the drum-type washing machine circulates the cleaning liquid caused by the tumbling operation and the circulation pump. Even less water can ensure the cleaning performance. Compared with the upright washing machine, it can save water.

Furthermore, as one of the methods for improving the cleaning power, the cleaning temperature is increased. That is, by increasing the temperature of the detergent and the cleaning solution, by increasing the action of the detergent enzyme, or by promoting the diffusion of the surfactant and the like in the cleaning solution, the cleaning power can be improved. The washing liquid is in a state in which the washing liquid is fully filled in the drum and the washing liquid is normally stored in the lower part of the outer tank. The heating means provided in the lower part of the outer tank is used to heat the washing liquid in the lower part of the outer tank and is pumped up by a circulating pump. A method of heating the entire circulation system including the outer tank by pouring the washing product from above the drum.

On the other hand, in order to effectively remove sebum dirt and the like, it is determined that a high concentration of detergent liquid due to less water supply is dispersed, soaked in the laundry, and the rolling operation is performed. Since the cleaning liquid is smaller than the usual washing liquid, the amount of the cleaning liquid remaining in the lower part of the drum after the cleaning liquid is impregnated with the cleaning liquid becomes almost non-existent. For this reason, ideally, the heating means provided in the lower part of the drum will not be immersed in water, and it is difficult to directly heat the cleaning liquid, and warm air and the like directly hit the washing object and heat it.

Moreover, in the drying program in the washing and drying machine, when the warm air drying of the low-humidity and high-temperature hot air hitting the laundry is basic, it is mainly the heating of circulating air. In the case where a heater is used as a heating source, in order to reduce the heat loss from the heated warm air as much as possible, the heater is ideally provided in a circulating air path or a fan unit to heat the air. In addition, in the case where the warm air hits the laundry in the washing program or the drying program, it is ideal to let the warm air hit the laundry at a timing when the laundry is lifted to the upper part by a rolling operation.

One of these heaters for hot air heaters and hot water heaters is described in Patent Literature 1, for example. Patent Document 1 discloses that its purpose is "to provide effective washing with heated water by using heating means for drying function, and therefore to provide a washing machine that effectively exerts the added value of the drying function to the washing function." There is "a washing machine comprising: a water tank provided in the machine; a duct provided in a side portion of the water tank; an air-supply device that sends air to the inside of the water tank through the duct; and heat generation provided in the inside of the duct Means ", which has the effect of" heating and warming the air conveyed from the air supply device through the duct by heating means inside the duct, and supplying the warm air to the water tank, thereby drying the laundry inside the water tank. Next During washing, the water is also stored in the duct by supplying water to the inside of the sink. Therefore, it is heated by the heating means provided in the duct to heat it, and the water in the sink is further applied. Hot water can be washed with this hot water (heated water). "

Furthermore, in Patent Document 2, it is disclosed that "the heater unit 17 is constituted by a water supply cylindrical portion 38 having a substantially barrel shape passing the water from the water supply valve 20 at the upper portion, and a heater 35 provided in the lower portion. The heater cylindrical portion 39 is integrally formed, and the water in the water supply cylindrical portion 38 passing through the heater unit 17 is heated to hot water and supplied into the water tank 2 during the washing process by being energized to the heater 35. In the drying process, the high-temperature air radiated from the fins 32 provided at the lower portion of the heater cylindrical portion 39 of the heater unit 17 is heated to warm air by passing electricity to the heater 35, and the rotating drum 3 Circulate toward sink 2. " [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2007-167385 [Patent Document 2] Japanese Patent Laid-Open No. 2017-077279

[Questions to be Solved by the Invention]

In the washing machine or washer-dryer described in Patent Document 1, the air heated by a heater that is used for both hot water and warm air is sent to the air outlet in the water tank, and the heater is immersed in water to heat it. In the case of hot water, the water in the water tank is in common with the communication part of the heater. In the case of the drum type, in this case, because the air outlet of the warm air heated by the heater is provided at the bottom of the outer tank, the air heated by the heater also becomes the air supply from the bottom. In the washing program, warm air cannot effectively touch the laundry. Moreover, even when water is supplied until the water surface appears in the outer tank, it is also impossible to generate warm air while maintaining its water level.

In the washer-dryer described in Patent Document 2, the water is connected to the water pipe connected to the heater to heat the hot water, and impurities such as bleaching powder in tap water are on the inner wall of the heated water pipe. Because of heating and precipitation, it is easy to accumulate. Garbage in the washing water that circulates with it also slowly accumulates, but unfortunately, the water pipe is closed, and heat exchange cannot be performed, so that the surroundings of the heater unit are excessively heated. Furthermore, during drying, the lint in the circulating air is clogged between the fins that generate high-temperature air, but unfortunately it also causes obstacles to the heating of the air and overheats the heater unit. [Means for solving problems]

In order to solve such a problem, the washing and drying machine according to the present invention includes an outer tank that can store liquid therein, and a slightly cylindrical drum or an inner tank that is supported in the outer tank. Rotate freely to accommodate washing; air supply means for sending air to the outer tank; air supply path for connecting the outer tank to the air supply means; heat exchange means for heating the air in the air supply path; sprinkle A water fixture is used to sprinkle water in the outer tank from the upper part of the heat exchange means; and a water storage unit is configured to receive water flowing down from the heat exchange means. [Inventive effect]

According to the present invention, the reason that water and air can flow on the effective heat transfer surface of the heating means can prevent the accumulation of bleaching powder or garbage, and can continuously generate hot water and warm air. In the washing program, the washing liquid sprayed from the bottom of the outer tank through the circulation pump is sprinkled with water and flows down to the heater surface of the heater unit and the guide connected to it, thereby generating an irregular flow. As a result, the surfaces of the heater and the guide can be cleaned while the cleaning liquid is sufficiently mixed, so that the heating means is not excessively heated, and hot water can be continuously generated. In addition, when the air is heated, the air sent from the air supply means to the inner tank will flow to the heater unit and be heated. Because of the disorder when the heater and the guide pass, it can drive the air to remove the newly accumulated waste or adhesion. Thing. As a result, the heating means is not excessively heated, and warm air can be continuously generated. Furthermore, during the drying process, together with warm air heating, steam is generated by spraying water on the heating means, whereby the steam drying can be performed efficiently.

Hereinafter, examples will be described using drawings.

(Embodiment 1) FIG. 1 is a perspective view showing the appearance of a drum-type washing and drying machine according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the first embodiment of the present invention, viewed from the front side showing the internal structure of the drum-type washing and drying machine.

First, the appearance will be described. In the upper part of the base 1h, a framework is mainly composed of a steel plate and a side plate 1a made of a resin molded product and a reinforcing material (not shown), and a front surface cover 1c and a top surface are further mounted on it. The casing 1e is covered to form the frame body 1. A door 9 for allowing the laundry 207 to pass in and out is provided on the front cover 1c, and a back cover 1d is attached to the back.

Next, the outline structure of a washing and drying machine, and the operation | movement (task) of each constituent element from a washing process to a drying process are demonstrated briefly. Inside the housing 1 shown in FIG. 1, as shown in FIG. 2, an outer groove 2 is provided at a substantially central portion. The outer groove 2 is supported by a plurality of lower dampers 5. The door 9 is opened, and the laundry 207 is put into the drum 3 provided inside the outer tank 2 to be rotatable. The door 9 itself is a door glass 9a fixed to a door frame 9b, and is attached to the frame through a hinge (not shown). A fluid balancer 208 is provided around the outer periphery of the opening of the rotatable drum 3 to reduce vibration caused by the imbalance of the laundry 207 during dehydration, as needed. A plurality of lifters 209 are provided on the inner side of the drum 3 to lift the laundry 207. The rotatable drum 3 is directly connected to a drum driving motor M10a through a main shaft 211 connected to a metal flange 210. Alternatively, it is a so-called belt-driven configuration in which the pulley fixed to the main shaft and the motor fixed to the outer groove are connected to each other through a belt, and the roller is driven by a belt.

A rubber bellows 10 made of an elastomer is attached to the opening of the outer groove 2. The rubber bellows 10 plays a role (task) in maintaining the water tightness of the inside of the outer tank 2 and the door 9. With this, it is possible to prevent water leakage during washing, washing, and dehydration. The rotatable drum 3 is provided with a plurality of small holes (not shown) for centrifugal dehydration and ventilation on the side wall, that is, the cylindrical portion.

FIG. 3 shows the basic components of a sprinkler mechanism 224 that sprays water from the water storage unit 54 at the lower portion of the outer tank 2 through the circulation pump 18 to the upper portion of the drum 3 in the washing program and the cleaning program, and uses the same circulation pump 18 to supply water. A perspective view of the basic components of the sprinkler 232 to the heater unit 236 provided in the heat exchange duct 231. In addition, in this figure, during the washing process and the drying process, the circulating air heated by the heater unit 236 through the heat exchange duct 231 from the outlet of the drum 3 through the outlet fan 20 is blown into the warm air in the drum 3 The basic elements of a cycle. In this embodiment, a part of the high-humidity air at the exit of the drum is exhausted from the exhaust valve 234 to the outside of the carcass, and dehumidified by sucking the surrounding ambient air from the intake gas door 235.

The drainage outlet 21 (see FIG. 3) for drainage provided on the bottom surface 54 a of the water storage unit 54 is connected to the drainage hose 26 through the fluff filter 222 and the drainage pump 230. The drainage pump 230 can be used for the water storage unit. The water in 54 is drained. Also in the path from the drain port 21 to the circulation pump 18, it is a circulation path from the water passing through the fluff filter 222 to the sprinkler 232 of the sprinkler mechanism 224 and the heater unit 236. In this embodiment, the drain pump 230 and the circulation pump 18 are separately provided. However, for example, a switching valve (not shown) may be provided at the pump outlet to appropriately switch to the drain hose 26 or the sprinkler nozzle 223. The sprinkler 232 is used to collect one pump without any hindrance.

The ventilation means, that is, the ventilation fan 20 and the ventilation duct 29 and the heat exchange duct 231 which guide the ventilation from the outlet of the ventilation fan 20 into the drum 3 are fixed away from the outer tank 2 and fixed to the housing 1 (not shown). On the other hand, the outlet nozzle 203 is fixed to the outer tank 2. For this reason, the connection between the outlet nozzle 203 of the outer tank 2 and the air supply duct 29, and from the outer tank outlet 80 to the heat exchange duct 231 is made through a rubber bellows tube 212, so that the vibration of the outer tank 2 can be prevented. Transfer to the heat exchange duct 231 or the air supply duct 29.

Monitoring air is provided at the outlet of the circulating air and the outlet of the heat exchange duct 231 connected to the drainage port 21 and the intake air side of the blower fan 20 A temperature sensor (not shown) for the temperature of water or water temperature is provided near the heater unit 236 in the heat exchange pipe 231, and a temperature sensor (not shown) for preventing overheating of the pipe is provided.

FIG. 4 is a perspective view showing a schematic structure of the heater unit 236 in the present embodiment. The heaters 237 are configured to meander back with respect to the flow direction (height direction) of the air in the heat exchange duct 231, and are further arranged in two rows in the thickness direction of the heat exchange duct 231. Plate-shaped guides 233 that are more than the meandering height of the heaters 237 in the direction of the duct height and are longer than the lowest part of the meandering sides are fixed on both sides of the inner wall of the ducts facing the heaters 237 formed in two rows. To heater 237. The sprinkler 232 is provided at a position higher than the heater 237, and a pipe having a length equivalent to the meandering width of the heater 237 and capable of dripping into the thickness of the heaters 237 in two rows is used. One end of the constituting tube is closed, and a plurality of through holes 238 are provided in the wall of the tube from the entrance of the cleaning liquid at the other end to the closed end.

Because a perforated plate is used for the guide 233, the air flowing in from the bottom of the heat exchange duct 231 and the cleaning liquid sprinkled from the upper part of the heater unit 236 can flow through the inside and the outside of the heater unit 236. As a result, the cleaning liquid and the air are sufficiently mixed, respectively, so that heat exchange between the heater 237 and the guide 233 can be promoted, and overheating of the heater 237 can be prevented. Furthermore, the surface of the heater and the guide of the perforated plate are irregularly flowed to cause turbulence, which can wash away bleach powder or gradually accumulated garbage. Through this, warm air or hot water can be continuously produced.

The upper and lower end portions of the guide 233 in the direction of the height of the guide pipe 233 are bent from the heater 237 side toward the inner wall side of the heat exchange pipe 231. With such a shape, the circulating air flowing in the heat exchange duct 231 has a gap of two rows of heaters 237 arranged in the thickness direction of the duct, and flows more without resistance. In addition, as a sprinkler 232 side at the upper end, the sprinkler from the through hole 238 of the sprinkler 232 is prevented from scattering toward the inner wall of the heat exchange pipe 231, and is a guide that flows down to the surface of the heater 237 to play effect.

The heat exchange duct 231 of the heater unit 236 is attached to the heater 237 and the sprinkler 232 through a bellows 239. With such a configuration, the airtightness of the duct can be maintained, and vibrations of the washing and drying machine can be individually absorbed.

When water is sprayed onto the heater unit 236, the hot water flowing from the heater 237 and the guide 233 flows down to the water storage part 240 of the duct at the bottom of the heat exchange duct 231, and then passes through the rubber bellows 212 flows toward the water storage portion 54 of the outer tank 2. The water storage unit 240, which is a duct that moves substantially in synchronization with the heater unit 236, temporarily receives hot water flowing from the heater unit 236, thereby preventing hot water from being scattered and dissipated by the vibration of the washing and drying machine. Quickly flows down to the water storage portion 54 of the outer tank 2. When the air is heated, the heater unit 236 heats and drives the air-sending fan 20 and the air flowing into the 231 from the outer tank outlet portion 80. The warm air from the outlet of the blower fan 20 is blown out from the outlet nozzle 203 of the outer tank 2 toward the laundry 207 in the drum. The guide 233 fixed to the heater 237 in contact with the heater 237 can also be used as a heat transfer area together with the surface of the heater 237 because of its high temperature. Further, as described above, the shape of the terminal portion of the guide 233 is fixed to the lower end of the heater 237 and the tail end of the guide 233 is formed to expand toward the inner wall of the heat exchange duct 231. As a result, the air flowing from the lower part of the heat exchange duct 231 to the heater unit 236 can smoothly flow into the gap between the heaters 237 in the two rows, and the heater unit 236 can be prevented from being excessively high temperature.

From the viewpoint of the operation mode and the timing of the generation of warm air and hot water, the parts from the washing process to the drying process in the drum-type washing and drying machine thus constructed will be described in detail using FIGS. 2 and 3. In addition, there are also models that can be set to perform the pre-washing operation by using a detergent prepared from the washing program to the dehydration program as a normal washing course as the previous stage of the normal washing course operation. This is for normal washing operation.

Water is supplied while the washing object 207 is put into the rotatable drum 3 and the drain pump 230 is stopped, and the drum 3 is rotated to wash the washing object 207. If the washing programs are roughly distinguished, they are composed of a detergent dissolving program, a pre-washing program, and a main washing program. The detergent dissolution program is based on the cloth amount sensing at the beginning of washing to indicate the amount of detergent and the time required for washing. After dissolving the detergent in water, the cleaning solution is distributed to the washings 207 in the drum 3. program. The water supplied to the detergent input portion is introduced into the water storage portion 54 located at the lower portion of the drum 3 together with the detergent. When the circulation pump 18 is driven, the water in the water storage unit 54 passes through the fluff filter 222 from the drainage port 21 and enters a suction port (not shown) of the circulation pump 18. The cleaning liquid of the high-concentration detergent, which has been boosted by the circulation pump 18, returns to the water storage unit 54 again from the circulation spout outlet 54b connected to the outlet of the circulation pump 18 (the circulation path of the detergent dissolution program: see the figure 3). By repeating this cycle, less concentrated water is used to produce a highly concentrated detergent solution in which the detergent is dissolved. The output of the circulation pump 18 is regulated so that the cleaning liquid corresponding to the maximum washing load can be fully applied to the sprinkler nozzle 223 provided above the outer tank 2. Therefore, if it is circulated in the circulation path of the aforementioned detergent dissolution program, the required power of the circulation pump 18 is finally converted into thermal energy, so that the temperature of the high-concentration detergent liquid rises. The generated high-concentration detergent liquid is used in this embodiment to switch the rotation direction of the circulation pump 18, and sprays a water spray nozzle 223 provided above the outer tank 2 toward the washing object in the drum 3. 207 spread. That is, as for the outlet of the circulation pump 18, a path leading to the upper part of the outer tank 2 and a path back to the water storage unit 54 without being spread as described above are necessary. The outlets of the respective paths (see FIG. 3) are switched from the side of the outlet that is initially connected in accordance with the rotation direction so as to switch the rotation direction of the circulation pump 18, thereby switching the paths. Furthermore, it is comprised so that it may branch through a switching valve on the way to the sprinkler nozzle 223, and is sent to the sprinkler 232 of the heater unit 236.

In the previous washing procedure, the laundry 207 to which the high-concentration detergent solution is dispersed is subjected to a flapping wash using a tumble operation. The detergent 207 is in a state where the water-retaining detergent liquid has a high concentration. By the action of the detergent component and the mechanical force, the dirt can be separated from the detergent 207. Furthermore, if necessary, the heater 237 is energized and the air-sending fan 20 is driven to send warm air into the drum 3, thereby washing the laundry 207 while heating. Compared with air occupying the fiber gap of the washing 207, it has better heat conduction and can be heated more efficiently. Furthermore, by increasing the temperature, it is possible to reduce the surface tension of the high-concentration detergent liquid in the water-retaining water. Furthermore, if the temperature of the washing | cleaning material 207 is raised, since the air in a fiber swells a fiber, penetration of the fiber of a high-concentration detergent liquid can be promoted more. As a result, more dirt can be separated from the fibers in a short time. The separated dirt is quickly dispersed in the high-concentration detergent solution in the water-retaining liquid, which prevents re-aggregation and re-adhesion.

In addition, according to the dirt, the amount of water in the cleaning liquid attached to the detergent 207 is small (the concentration of the detergent is thick) and falls well, and on the contrary, the amount of water in the cleaning liquid is large (the detergent The concentration is thin) and the case is well dropped. There is a difference in the motive force of the dirt falling from the two, which can be explained as follows. One of the main components of the detergent is the surfactant, which promotes the wetting of the fibers. Furthermore, it acts to negatively affect the surface potential of the dirt or the cloth in a negative manner biased to the surfactant. This has the effect of increasing the mutual repulsive force between the dirt or the fiber and the dirt floating from the washing 207. For this reason, when washing | cleaning the solid dirt adhere | attached with van der Waal force as a main body, if the concentration of a surfactant is strong, the mutual repulsion force which resists van der Waal force mentioned above can be strengthened. Therefore, in general, solid dirt and the like fall off as the concentration of the surfactant increases. On the other hand, the so-called water-soluble dirt that is easily dissolved in water or a cleaning solution varies according to the concentration of the solvent, that is, the concentration of the dirt that is a solute in the cleaning solution, and the dissolution rate varies. The dissolution rate is large in a liquid with a thin soil concentration, but the dissolution rate is decreased in a thick liquid. For this reason, if the concentration of the dirt dispersed in the water-retaining washing liquid held by the washing 207 is thinned, the dirt can be more easily dropped from the washing 207. In other words, it is necessary to dispose of the cleaning solution that retains the water in the laundry 207 with a cleaning solution having a very low concentration of dirt or thinning the concentration of the dirt. That is, the effect (task) of the surfactant on such dirt is to disperse and maintain the flakes peeled from the washing 207, and to prevent aggregation or re-adhesion (task). There are many reasons, so it is full of some kind. When the degree of the detergent concentration is small, there is little dependence on the concentration of the detergent falling off the dirt.

Increasing the cleaning temperature for arbitrary dirt also results in an increase in the cleaning power. For the former, in order to increase the temperature, it can promote the diffusion of molecules in the cleaning solution, so that more surfactants can be attached to the surface of the cloth or dirt, which can increase the mutual repulsion. Also for the latter, increasing the diffusion of the surfactant in the cleaning solution can promote the wetting of the surface of the cloth. Furthermore, the separated dirt can be effectively diffused.

In the subsequent main washing program, additional water is supplied at the end of the previous washing program to increase the amount of water in the water storage unit 54 and raise the water level. This water level is obtained by pumping the cleaning liquid from the water storage unit 54 by the circulation pump 18 and continuously spreading it from the sprinkler nozzle 223 on the upper part of the outer tank 2 to maintain a sufficient water level. That is, in a pre-washing program that ensures a sufficient washing time and a small amount of water in the washing liquid, it is a program that effectively removes dirt that is difficult to drop. Dispersion from the sprinkler nozzle 223 may be continuous or intermittent. Specifically, during the period when a lot of dirt is still attached to the back side of the laundry 207, the cleaning fluid retained by the laundry 207 can be continuously exchanged to have a low concentration of dirt by continuously spreading and promoting the stirring of the cleaning fluid. Cleaning fluid. After that, after almost all the dirt falls, the washing force is mainly used to remove the remaining dirt, and the washing efficiency is good. Therefore, the dispersion in the second half is ideally an intermittent dispersion that does not hinder the mechanical force. In addition, the driving force of the intermittent circulation pump 18 can reduce power consumption, and is also preferable from the aspect of energy saving.

Moreover, the sprinkler nozzle 223 is structured as follows: it is located in the outer tank 2 and is located above the central axis of the rotatable drum 3 when viewed from the front of the washer-dryer, and from the side of the washer-dryer, It is fixed to the front side and spreads the spray range from the sprinkler nozzle 223 with a wide angle with respect to the radial direction of the drum 3 (refer FIG. 4). In this main washing program, together with a wide range of spreading, the washing 207 stored in the lower part of the drum 3 is lifted by the rotation of the drum 3, and the cleaning liquid is closed up and dropped from the upper part of the drum 3 After this, mechanical force is applied to the laundry 207, and the washing is performed by flapping. The larger the diameter of the drum, the more multiplying effect of spreading and tap washing can be obtained, and the time of the main washing program can be shortened. If the water level of the cleaning liquid is lower than that of the outer tank outlet portion 80 connected to the bottom of the heat exchange duct 231, air can be circulated between the outer tank 2 and the ventilation fan 20, even if it is used as in the previous washing program There is nothing to prevent warm air from raising the washing temperature. Furthermore, when the water level is raised or the cleaning temperature is increased more efficiently, the circulation pump 18 is driven to wash up the cleaning liquid at the bottom of the outer tank 2 and sprinkle water from the sprinkler 232 to the heater 237, thereby , Heat the cleaning solution. At this time, if the circulation of warm air is possible, even if the circulation of air is used in combination, there is no hindrance. In addition, the warm air outlet nozzle 203 is configured to determine that the vicinity of the height of the washing object 207 can be raised by using the top of the drum head or a rolling operation to promote direct contact between the warm air and the water flow. Foaming caused by liquid stirring can also quickly defoam.

In addition, as necessary, the main washing program is a first main washing program and a second main washing program executed after the first main washing program. The amount of water in the second main washing program is water supplied at the end of the first main washing program, and the amount of water is greater than that in the first main washing program. The amount of water is increased by rotating the drum. In addition, as necessary, the circulation flow rate of the circulation pump 18 in the second main washing program is larger than the circulation flow rate of the circulation pump 18 in the first main washing program. Furthermore, the rotation speed of the drum-driven motor M10a in the second main washing program is lower than the rotation speed of the motor M10a in the first main washing program.

The main washing program is mainly carried out in order to separate the middle dirt on the inner side or the bag-like part of the laundry which has not been washed in the previous washing program with a small amount of water, from the laundry 207. Therefore, in order to remove various kinds of dirt, it is more preferable to combine at least two or more programs that change the amount of water and the rotation speed of the drum-driven motor M10a as described above. In the first main washing program, because the rotation speed of the drum 3 is increased, the washing objects 207 raised up with the rotation of the drum 3 will not fall down. Most of them are fixed to the drum due to centrifugal force. In the state of the inner wall of 3, it rotates together with the drum 3. Here, because the cleaning liquid is dispersed from the circulation pump 18, the penetration flow rate of the cleaning liquid to the laundry 207 is increased. With this, the dirt can be easily dissolved from the washing 207. Here, in the next second main washing program, the rotation speed of the drum 3 is reduced to be lower than that of the first main washing program, and the centrifugal force is weakened to suppress the sticking of the drum 3 to the washing article 207 as much as possible. It is a procedure that pays attention to falling and washing from the top of the drum 3 to the bottom. As a result, in order to make the mechanical force act on the laundry 207, the water-based dirt can be easily dropped. When the washing articles 207 are dropped from above to below the drum 3, the water level of the washing liquid staying below the drum 3 is increased, and the amount of circulating water is also increased, whereby the washing articles 207 directly collide with each other if necessary. It also prevents the fibers from being pressed.

In the cleaning program, after the drainage pump 230 is driven to drain the cleaning solution, the drainage pump 230 is stopped, and the cleaning water is supplied to the outer tank 2 to a specific water level. Thereafter, the drum 3 is rotated, and the washing object 207 and the washing water are stirred and washed.

In the dehydration program, after the drainage pump 230 is driven to drain the washing water in the outer tank 2, the drum 3 is rotated to perform centrifugal dehydration of the laundry 207. The dehydration speed is raised to a set speed corresponding to the load without the discomfort that the current value of the motor M10a exceeds the upper limit due to the imbalance of the laundry 207. When the spin speed is increased and the drum 3 rotates at a high speed, the vibration is also transmitted to the outer tank 2, and only the outer tank 2 itself vibrates. The air supply duct 29, the air supply fan 20, and the heat exchange duct 231 are fixed to the carcass. Because each duct is connected to the outer groove 2 through a rubber bellows tube 212, the rubber bellows tube 212 absorbs part of the vibration. In addition, in the dehydration program, by blowing warm air into the drum 3, it is possible to reduce the surface tension of the washing liquid contained in the washing object 207 and improve the dehydration performance.

In the drying process, the blower fan 20 is driven and the heater 237 is energized to send warm air into the drum 3. In this embodiment, the exhaust valve 234 and the air supply valve 235 of the heat exchange duct 231 provided through the suction port (not shown) of the air-sending fan 20 are opened, and a part of the circulating air is exhausted from the exhaust valve 234, and The air supply valve 235 draws in the same amount of air in the casing. It is possible to reduce the humidity of the high-humidity air from the drum 3 by exchanging a part of the circulating air with the air in the frame that is passed to the surrounding outside air. Particularly, in the first half of the drying process, where the water content of the washing 207 is large, it is desirable to increase the air exchange amount to reduce and maintain the humidity of the warm air. In the second half of the drying, in order to continuously reduce the water content of the washing 207, in order to promote the evaporation of the inside of the fibers from the washing 207, it is necessary to increase the temperature of the fiber surface and increase the heat transfer to the inside. Here, in order to increase the temperature of the warm air and increase the heat transfer amount to the laundry 207, it is desirable to suppress the exchange of air in the ventilation duct 232 and increase the temperature step of the circulating air. However, when the drying load is small, even if the temperature and humidity level of the air is changed, it will not affect the drying time or power consumption. Even if the amount of air fixed to the ventilation duct 232 is not affected, . In addition, in the case where the wrinkle of the laundry 207 is suppressed and finishing is emphasized, water may be supplied to the bottom of the outer tank 2 in the second half of the drying, and a circulation pump may be driven to apply a small amount of water together with warm air from the sprinkler 232 The heating is evaporated and a so-called steam drying is performed. Even if it is configured to directly supply tap water to the sprinkler 232, there will be no change in function.

As described above, according to the washing and drying machine or washing machine that can be operated from washing to drying, hot water and warm air can be used to efficiently increase the washing temperature of the washing object 207 and the washing liquid. Furthermore, during the drying process, low-humidity warm air can be ensured by heating the circulating air and exchanging air with a humidity equivalent to the ambient air. In the case where the finishing of the drying is emphasized, a small amount of water is distributed to the heater 237 in the second half of the drying, and steam is generated together with the warm air, so that drying wrinkles can be suppressed. In addition, as a condition that can respond to the high humidity of the surrounding air and difficult to reduce the humidity even if it is replaced, even if the water supply (not shown) is upstream of the circulating air heated by the heater unit 236 (heat exchange duct 231) The lower part) is used to add water-cooling dehumidification to the air in the duct (the cooling water is drained from the lowest part of the heat exchange duct 231 to the outside of the duct) as an additional equipment, and it will not have any effect on the washing and drying function.

FIG. 5 is a block diagram showing a configuration of a control device 100 of the drum-type washing and drying machine according to the embodiment of the present invention. The control device 100 (operation control means) controls the energization of the motor M10a (drive device M10), the water supply unit 15, and the heater 237 to perform washing and drying operations. Furthermore, if the electric conductivity detection means 4 is provided, the electric conductivity of the cleaning liquid in the outer tank 2 detected by the electric conductivity detection means 4 is calculated at the control device 100, and the presence or absence of a fabric softener in the washing water can be determined. (Discrimination from the reference concentration), it is judged that the dehydration program is shortened, and it is judged that the washing program is shortened. Through this, it is possible to perform a delicate washing and drying operation according to the type of the detergent, the water quality, and the amount of dirt on the clothes. As shown in FIG. 5, the control device 100 includes a microcomputer (hereinafter referred to as a “microcomputer”) 110, a driving circuit, operation switches 12 and 13, a conductivity detection means 4, and input circuits from various sensors. The microcomputer 110 receives various information signals in the operation of the user, the washing process, and the drying process. The microcomputer 110 is connected to a driving device M10 (motor M10a), a water supply solenoid valve 16, a drain pump 230, a blower fan 20, and the like through a drive circuit, and controls the switching, rotation, and energization of these components. In addition, in order to inform the user about the drum type washing machine, the display 14 or a buzzer (not shown) is controlled.

Next, an operation procedure of the drum type washing and drying machine according to the first embodiment will be described mainly from the viewpoint of a control algorithm. Fig. 8 is a flowchart illustrating an operation procedure of a washing operation (washing-washing-dehydration-drying) in the drum-type washing and drying machine according to the first embodiment.

In step S1, the program control unit 112 accepts input of stroke selection (stroke selection) of the operation program of the drum-type washing and drying machine. Here, the user opens the door 9, puts the laundry 207 to be washed into the drum 3, and closes the door 9. Next, the user operates the operation switches 12 and 13 to select the stroke for inputting the operation program. The stroke of the selected operation program is input to the program control unit 112 by operating the operation switches 12 and 13. The program control unit 112 reads the corresponding operation mode from the operation mode database 111 based on the stroke of the input operation program, and proceeds to step S2. In addition, in the following description, a 40 ° C hot water washing cycle (washing without prewashing-washing twice-dehydration) is selected for description.

In step S2, the program control unit 112 executes a program (clothing amount sensing) for detecting the weight (clothing amount) of the laundry 207 fed into the drum 3. Specifically, the program control unit 112 drives the motor M10a to rotate the drum 3, and the laundry weight calculation unit 114 calculates the weight (clothing amount) of the laundry 207 before water injection.

In step S3, the program control unit 112 performs one of the stroke selections, that is, determines whether a pre-washing program is selected, and performs divergent selection of a control algorithm. In the following, it was decided to choose a person without prewashing.

In step S4, the program control unit 112 executes a program for calculating a cleaning dose and an operation time (calculating a cleaning dose operation time). Specifically, the program control unit 112 controls the water supply solenoid valve 16 (for example, opens the fourth solenoid valve), and supplies water directly to the water supply port 2 a of the outer tank 2. The electrical conductivity measurement unit 115 detects the electrical conductivity (hardness) of the supplied water. Then, the temperature of the supplied water is detected by the sensor T1. After that, the water supply solenoid valve 16 is controlled to end the water supply to the external tank 2.

The cleaning amount and washing time determination unit 116 determines a cleaning amount and an operation time to be inputted based on the cloth amount detected in step S2, the electrical conductivity (hardness) of the water, and the temperature of the water through a map search. In other words, the cleaning amount and operating time for each cleaning performance can be ensured for the amount of cloth, the electrical conductivity and temperature of the water as a map, and the measured values are compared with the map. The decision is based on compliance. Detergent amount and running time within the range of measured value. Next, the program control unit 112 displays the determined cleaning amount and operation time on the display 14. In addition, although the person who supplied water to the outer tank 2 and detected the electrical conductivity (hardness) and water temperature of water was demonstrated, it is not limited to this. For example, the electrical conductivity (hardness) and water temperature of the water during the previous operation may be stored in a memory section (not shown) of the microcomputer 110 and used.

In step S5, the program control unit 112 executes a detergent-waiting program (a detergent-waiting program). For example, the program control unit 112 waits for a specific time and proceeds to step S6. In addition, the program control unit 112 may be configured to detect the switch (not shown) of the detergent input unit 7 as a detergent input when the detergent input unit 7 is opened and then closed. Otherwise, proceed to step S6.

In step S6, the program control unit 112 executes a detergent dissolution program (detergent dissolution program). For example, the program control unit 112 controls the water supply solenoid valve 16 to supply water to the powder detergent input chamber 73a and the liquid detergent input chamber 73b through the water supply pipe. The detergent and water in the powder detergent input chamber 73a and the liquid detergent input chamber 73b flow from the water supply port 2a to the water storage portion 54 of the outer tank 2. When the water is supplied to a specific amount, the program control unit 112 controls the water supply solenoid valve 16 (for example, closes the first solenoid valve) to stop the water supply. Next, the program control unit 112 performs a detergent dissolving operation (detergent dissolving operation). After a specific time (for example, 10 seconds) has elapsed, the generated high-concentration detergent solution is sprayed onto the sprinkler nozzle 223 that comes to the upper part of the outer tank 2 and dispersed. In order to spread the less high-concentration detergent liquid as uniformly as possible to the washing article 207, the drum 3 is rotated at a high speed before being dispersed, and the washing article 207 is placed on the inner surface of the drum 3 by centrifugal force. While maintaining the rotation of the drum 3, the high-concentration detergent solution sprayed onto the sprinkler nozzle 231 hitting the upper part of the outer tank 2 was spread by the circulation pump 18 while being spread. The high-concentration detergent liquid is directed toward the inner wall of the drum 3 and penetrates the detergent 207 by using the speed energy at the time of spraying water and the centrifugal force acting from reaching the detergent 207. In addition, the drum 3 is rotated at a rotation speed of the washing article 207 by using centrifugal force. For example, when the drum 3 is rotated at 80 r / min, the spreading time is 20 seconds. 26 sprinkled water.

After the high-concentration detergent solution is infiltrated into the detergent 207, warm air is generated in the next procedure, and the detergent 207 which has been infiltrated with the high-concentration detergent solution is sprayed, thereby suppressing power consumption and improving efficiency. The washing temperature method can increase the washing power.

In step S7, the program control unit 112 executes a pre-washing and washing program (pre-washing and washing program). In the pre-washing and washing program, the hot air heated by the heater 237 is sprayed on the laundry 207 to which the high-concentration detergent liquid has been sprayed, diffused to the laundry 207, and heated. When a specific time has elapsed from the start of the program, the water supply solenoid valve 16 is controlled to raise the water level of the cleaning liquid in the outer tank 2. Next, when the water level of the washing liquid in the outer tank 2 rises to a specific water level WL1 (WL0 <WL1) relative to the water level WL0 during the detergent dissolution process, the water supply is stopped, and the pre-wash process is terminated, and the process proceeds to step S8.

Once the pre-washing procedure of step S7 is completed, the program control section 112 executes the main washing procedure. Here, the so-called main washing program is to use the rotation of the drum 3 to lift the laundry 207 stored in the lower part of the drum 3 and drop it from the upper part of the drum 3, and then apply the laundry 207 to the laundry. Mechanical force, the process of tapping and washing. The main washing program is composed of the main washing 1 program (the first main washing program) in step S8 and the main washing 2 program (the second main washing program) in step S9.

In step S8, the program control unit 112 executes the first main washing program (first main washing program). Specifically, the program control unit 112 controls the circulation pump 18 to achieve a specific flow rate PF1, and sprays the cleaning liquid sucked from the drainage port 21 from the sprinkler nozzle 231 provided in the opening of the outer tank 2 to the inside of the drum 3, and The motor M10a is controlled to rotate the drum 3 at a specific rotation speed DR1, and after that, the laundry 207 inside the washing drum 3 is tapped. At this time, the heating up to the selected specific temperature (in this embodiment, 40 ° C.) is in the neutral position of the water spray from the sprinkler nozzle caused by the circulating pump to the washing object 207, and is turned on to the heater. 237, and the discharge of the circulation pump is switched to the sprinkler 232 side of the heater unit 236 to perform hot water heating. In addition, when the set temperature is high or the washing load is large, in the state where the rotation of the drum 3 and the circulation pump 18 are intermittently operated, the blower fan 20 is driven to send warm air into the drum 3, thereby performing washing. The object 207 and the water-containing cleaning solution are mainly heated. If the water level of the cleaning liquid in the outer tank 2 is higher than that of the outer tank outlet 80, the drum 3 is continuously rotated, and the cleaning liquid at the bottom of the outer tank 2 is stirred by the tumbling operation, and the circulation pump is used to supply water to the heater. The sprinkler 232 of the unit 236 is heated by hot water. At this time, the switching valve at the outlet of the circulation pump is used to simultaneously supply water to the sprinkler 232 and water to the sprinkler nozzle of the external tank 2, thereby effectively increasing the cleaning temperature including the laundry 207. In addition, by increasing or decreasing the additional water supply speed to the drum, the rising speed of the washing temperature that is suitable for the heating capacity of the heater unit 623 may be adjusted. In other words, it is possible to suppress the rapid temperature drop of the laundry 207, and in particular, it is possible to improve the cleaning performance of solid dirt and the like that are easily attached to the laundry in a high-temperature environment.

Once a specific time (T1) has elapsed, the program control unit 112 ends the first main washing program and proceeds to step S9. In step S9, the program control unit 112 executes a second main washing program (second main washing program). Specifically, the program control unit 112 controls the water supply solenoid valve 16 to supply water to the outer tank 2 to a specific water level WL2 (WL1 <WL2). In addition, the program control unit 112 controls the circulation pump 18 to achieve a specific flow rate PF2 (PF1 <PF2), and sprays the cleaning liquid sucked from the drain port 21 from a sprinkler nozzle 231 provided at the opening of the outer tank 2 to the drum 3 In addition, the control motor M10a rotates the drum 3 at a specific rotation speed DR2 (DR1> DR2), and thereafter, the laundry 207 inside the washing drum 3 is tapped. Also in this procedure, while maintaining the cleaning temperature, stop or intermittently operate the water spray from the water spray nozzle toward the washing object 207 caused by the circulating pump, and increase the water level of the sprinkler 232 of the heater unit 623. Frequency of water supply. Once a specific time (T2) has elapsed, the program control unit 112 stops the motor M10a and the circulation pump 18, drives the drain pump 230, and drains the cleaning liquid in the outer tank 2.

In step S9, the program control unit 112 executes a first cleaning program (first cleaning program). For example, in the first cleaning program, the program control unit 112 controls the water supply solenoid valve 16 and the drain valve V1, repeats water supply and drainage, and controls the motor M10a to rotate the drum 3, and controls the circulation pump 18 to suck in from the drain port 21. The washing water is sprayed from the sprinkler nozzle 231 provided in the opening of the outer tub 2 to the inside of the drum 3 to wash the laundry. Then, once a predetermined time has elapsed, the program control unit 112 stops the motor M10a and the circulation pump 18, drives the drain pump 230, and drains the washing water in the outer tank 2.

In step S11, the program control unit 112 executes a second cleaning program (second cleaning program). For example, in the second cleaning program, the program control unit 112 stops the drain pump 230 and controls the water supply solenoid valve 16 to supply water to the outer tank 2 to a specific water level. In addition, the program control unit 112 controls the motor M10a to rotate the drum 3, controls the circulation pump 18, and causes the washing water sucked from the drainage port 21 to spray water from a sprinkler nozzle 223 provided in the opening of the outer tank 2 to the inside of the drum 3. , To wash and wash 207. Then, once a predetermined time has elapsed, the program control unit 112 stops the motor M10a and the circulation pump 18, drives the drain pump 230, and drains the washing water in the outer tank 2.

In step S12, the program control unit 112 executes a dehydration program (dehydration program). Specifically, the program control unit 112 drives the drain pump 230, and controls the motor M10a to rotate the drum 3 at a higher speed than during the main washing program, to perform centrifugal dehydration of the laundry 207. Then, once a predetermined time has elapsed, the program control unit 112 stops the motor M10a, stops the drain pump 230, and ends the washing cycle (washing-washing-dehydrating). Moreover, in this procedure, the blower fan 20 may be driven, and the heater 237 may be energized to send warm air to the drum 3, thereby heating the water contained in the laundry 207 and reducing the surface tension to promote dehydration.

In addition, in the main washing program in steps S7 and S8, the operation characteristics of suppressing the blackening and hardening of the dishwashing substance 207 will be described below, focusing on its mechanism. The second main washing program (step S9) is performed after the first main washing program (step S8). However, the water level WL2 of the second main washing program is higher than the water level WL1 of the first main washing program (WL1 <WL2). That is, by increasing the amount of water in the cleaning liquid in the outer tank 2, the dirt peeled off from the washing 207 can be dispersed into the washing liquid, and the generation of the dirt peeled off from the washing 207 to adhere to the washing 207 can be suppressed. "Blackening of the laundry."

The rotation speed DR2 of the drum 3 in the second main washing program is slower than the rotation speed DR1 of the drum 3 in the first main washing program (DR1> DR2). By making the rotation speed DR2 of the drum 3 slower than the rotation speed DR1, when the washing 207 stored in the lower part of the drum 3 is lifted by the rotation of the drum 3 and dropped from the upper part of the drum 3, the lowering is started. Falling position. That is, by suppressing the drop impact (mechanical force) of the laundry 207 to be patted and washed, "hardening of the laundry" can be suppressed. Furthermore, by raising the water level WL2, it is possible to suppress the drop impact (mechanical force), and it is possible to suppress "hardening of the laundry". On the other hand, the rotation speed DR1 of the drum 3 is rotated at a faster rotation speed than centrifugal force when the washing articles 207 placed on the inner wall of the drum 3 are lifted up and peeled off due to gravity (centrifugal force) > Gravity), as long as it does not drop or wash like the entire washing object 207, it has no effect. That is, ideally, on the one hand, slapping is suppressed as much as possible, and on the other hand, a circulation amount larger than a normal washing operation is passed to the washing object 207, thereby performing a washing operation. However, there is a possibility that the washing performance may be deteriorated due to flapping washing. In this regard, the flow rate PF2 of the circulation pump 18 in the second main washing program is set to be larger than the flow rate PF1 of the circulation pump 18 in the first main washing program. PF1 <PF2), thereby ensuring the cleaning performance due to water flow. For example, ideally, the circulation flow rate of the circulation pump 18 is 30 L / min or more and 80 L / min or less. Furthermore, ideally, the operating time (T1) of the first main washing program and the operating time (T2) of the second main washing program are set to be the operating time (T2) of the second main washing program. The running time (T1) of the washing program is even longer (T1 <T2). In this way, "hardening of the laundry" can be suppressed.

In step S13, the program control unit executes a drying program (drying program). Specifically, the motor M10 is controlled to repeatedly rotate the drum 3 at a distance of about 10 s at a time of about 40 r / min for 30 s each. In other words, the laundry 207 is operated at a lower rotation speed than that applied to the inner wall of the drum 3. During this period, the blower fan 20 is continuously or intermittently driven to send air into the drum 3, and the heater 237 is also continuously or intermittently energized in order to reach a specific warm air temperature. During the drying process, the drain pump 230 is intermittently driven to drain water remaining from the lower portion of the drum 3 to the vicinity of the fluff filter 222. Then, the air supply valve 235 and the exhaust valve 234 for ventilation are opened to adjust the humidity of the circulating air. Ideally, the opening degree is determined based on a data sheet prepared in advance in accordance with the load of the drying stroke. After a predetermined period of time, or the air temperature T2 of the outlet of the drum 3 toward the intake air side of the fan 20 is confirmed, The temperature rises to a predetermined value or more, and based on this, it is judged that it is dry, and the opening degrees of the intake gas valve 235 and the exhaust valve 234 are reduced in order to increase the temperature of the warm air, and the ventilation volume is reduced. A predetermined time has elapsed from the start of drying, and the end determination is made. Specifically, the difference ΔT2 between the exit temperature T2 of the drum 3 toward the suction gas side of the fan fan 20 at the initial drying stage and the T2 at the time of determination is determined, and the difference ΔT4 between the initial drying value of the ambient gas T4 in the frame and the value at the time of determination When the ratio ΔT2 / ΔT4 is equal to or greater than a predetermined value, the drying is terminated. That is, when the change in the temperature of the warm air at the outlet of the drum 3 with respect to the change in the temperature of the ambient gas is greater than a predetermined value, it is determined that the evaporation of the water from the washing 207 is completed, and the drying is completed.

Moreover, in this embodiment, a steam drying function is provided. When this function is selected, a small amount of water is distributed to the heater 237 in the second half of the drying process or on the way to generate steam together with warm air. Suppresses dry wrinkles. In particular, in order to adjust the amount of water supply and the timing in accordance with the drying load, on the one hand, it imparts moderate humidity to the degree of flattening wrinkles, and on the other hand, it dries, thereby making it possible to perform high-quality products with fewer wrinkles. Finishing and drying.

As described above, according to the operation program of the drum-type washing and drying machine according to the first embodiment, hot water and warm air are generated in accordance with the amount of the cleaning liquid in each stroke during cleaning. Wash temperature and heat to the optimal value for better efficiency. In addition, during drying, a fine finishing state can be ensured by adjusting the amount of warm air and steam. Furthermore, it is possible to suppress the blackening of the clothes and the hardening of the clothes.

The washing process at 40 ° C was used as a reference. The washing process that is concerned about discoloration or discoloration due to temperature, or the washing of the fiber due to heating caused significant shrinkage of the fiber can be selected. In this case, power consumption can be reduced. Furthermore, because of worries such as pure white or light-textured objects that are black, and other towels that are hard to wash, etc., in short, if you want water-saving washing, you can choose a water-saving washing schedule. In this case, the water level is not raised in the main washing program, and the circulation flow rate is also set to 15 to 20 L / min, thereby suppressing the amount of water used in the entire washing process.

Embodiment 2 FIG. 7 is a cross-sectional view showing a basic configuration of a heater unit 236 according to a second embodiment of the present invention. The heater unit 236 in this embodiment is configured such that a water supply pipe 246 capable of supplying tap water is provided between the sprinkler 232 and the heater 237. The water supply pipe 246 is provided with more water spray holes 241 than the number of water spray holes 238 of the water spraying device 232. By supplying and spraying tap water at the beginning of the washing operation or the end of the washing and drying operation, it is possible to maintain a state in which the debris that is a cause of occlusion such as fluff is removed around the water hole 238 of the sprinkler 232. Furthermore, in this embodiment, it is comprised so that the overflow part 242 may be provided in the uppermost part of the sprinkler 232. With such a structure, if the water hole 238 is closed, as shown in FIG. 7 (b), it overflows from the overflow portion 242, so that water can be sprayed onto the heater 237 through the guide 233. Even if the water passage 238 is closed during operation, the heat exchange duct 231 will not be overheated.

(Example 3)

FIG. 8 is a sectional view showing a basic configuration of a heater unit 236 according to a third embodiment of the present invention. The heater unit 236 in this embodiment is configured such that a plurality of protrusions 243 are provided on the guide 233, and the protrusions 243 penetrate through the meandering portion of the row in which the heaters 237 are in contact with each other, and the protrusion 243 The protrusions 243 of the guide 233 on the other side of the heater 237 are arranged in a staggered manner. With such a structure, water can be flowed down and mixed into the cleaning liquid of the heater 237 and the guide 233-2 system formed in two rows, so that heating can be performed efficiently.

(Example 4)

FIG. 9 is a sectional perspective view showing a basic configuration of a heater unit 236 according to a fourth embodiment of the present invention. The heater unit 236 in this embodiment is configured to fix the heat exchange pipe 231 through the universal joint portion 244 定 到 热 Exchange 管 231。 The heat exchange conduit 231. With this configuration, even when the installation state of the washer-dryer body is abruptly inclined, the posture of the heater unit 236 in the heat exchange duct 231 can always be maintained to be slightly perpendicular to the ground plane. It is possible to stabilize the state of water spraying to the heater 237. Further, ideally, the bellows 239 in this case has a sufficient movable range.

1‧‧‧frame

1a, 1b‧‧‧Side panels

1c‧‧‧Front cover

1d‧‧‧ cover the back of the back

1e‧‧‧ top shell on top

1h‧‧‧base

2‧‧‧ Outer Slot

2a‧‧‧ water inlet

3‧‧‧ roller

4‧‧‧ Conductivity detection means

5‧‧‧ damper

7‧‧‧Detergent input department

9‧‧‧ gate

9a‧‧‧door glass

9b: Door frame 10: Rubber bellows M10: Drive M10a: Motor M10b: Mounting tools 12, 13: Operation switch 14: Display 15: Water supply unit (water supply means) 16: Water supply solenoid valve 16a: Water supply hose connection port 18: Circulation pump 20: Air supply fan 21: Drain outlet 26: Drain hose 27: Acceleration sensor 28: Rotation detection device 29: Air supply duct 34: Water level sensor 54: Water storage unit 54a: Bottom surface 54b: Cycling Exit 71: Withdrawable tray 73: Detergent input chamber 73a: Powder detergent input chamber 73b: Liquid detergent input chamber 74: Fabric softener input chamber 80: Outer tank outlet 100: Control device (operation control Means) 110: Microcomputer 111: Operation mode database 112: Program control unit 113: Rotation speed calculation unit 114: Clothing weight calculation unit 115: Conductivity measurement unit 116: Detergent amount and washing time determination unit 117: Turbidity determination Section 118: Threshold value storage section 123: Heater switch 124: Fan drive circuit 125: Circulating pump drive circuit V1: Drain valves T1 to T4: Temperature sense Device 203: outlet nozzle 207: washing 208: fluid balancer 209: lifter 210: metal flange 211: main shaft 212: rubber bellows 215: bellows hose 222: fluff filter 223: Sprinkler nozzle 224: Sprinkler mechanism 230: Drain pump 231: Heat exchange pipe 232: Sprinkler 233: Guide 234: Exhaust valve 235: Supply valve 236: Heater unit 237: Heater 238: Water hole 239: Bellows 240: Water storage part of the duct 241: Water spray hole 242: Overflow part 243: Protrusion part 244: Universal joint part 245: Switching valve 246: Water supply pipe EC1: (before the first main washing program) Conductivity Degree (conductivity) EC2: (after the first main washing program) conductivity (conductivity)

[Fig. 1] Fig. 1 is an external perspective view showing a drum-type washing and drying machine according to an embodiment of the present invention. [FIG. 2] A schematic cross-sectional view of the right side when viewed from the front showing the internal structure of the drum-type washing and drying machine according to the embodiment of the present invention. [FIG. 3] A perspective view schematically showing a roller sprinkler mechanism and a warm air circulation mechanism according to an embodiment of the present invention. [FIG. 4] A schematic diagram showing a basic configuration of a heater unit according to an embodiment of the present invention. [FIG. 5] A block diagram showing a configuration of a control device of the drum-type washing and drying machine according to the embodiment of the present invention. [Fig. 6] Fig. 6 is a program diagram illustrating an operation procedure of a washing operation (washing-washing-dehydration) in the drum-type washing and drying machine according to the first embodiment. [FIG. 7] A sectional view showing a basic configuration of a heater unit according to a second embodiment of the present invention. [FIG. 8] A sectional view showing a basic configuration of a heater unit according to a third embodiment of the present invention. [FIG. 9] A sectional view showing a basic configuration of a heater unit according to a fourth embodiment of the present invention.

Claims (1)

A washing and drying machine is provided with: (1) an outer tank that can store liquid inside; (2) a cylindrical drum or an inner tank that is supported in the outer tank and can rotate freely, and can contain washing materials; Means, which sends air to the aforementioned outer tank; air supply path, which connects the outer tank and the air supply means; heat exchange means, which is used to heat the air in the air supply path; sprinkler, which is used to remove air from the aforementioned The upper part of the heat exchange means sprinkles water in the aforementioned outer tank; and