JP4083662B2 - Drum type washer / dryer - Google Patents

Description

  The present invention relates to a drum-type washing / drying machine in which a drying process can be carried out in addition to washing, rinsing and dehydration processes.

  A drum-type washing machine for washing laundry by sequentially executing a washing process, a rinsing process, and a dewatering process by putting the laundry in a rotating drum rotatably arranged in the water tank and rotationally driving the rotating drum. By being provided with a drying function, the drum type washing machine can be configured as a drum type washing and drying machine capable of executing a drying process for drying the laundry after the dehydration process.

The drying function is such that after the moisture in the rotating drum containing the laundry containing moisture and the water in the water tank circulating in the air are exhausted outside the tank and the moisture in the air is dehumidified by the dehumidifying means, the heating means It is configured to heat and dry hot air and blow it into the water tank again, and air containing moisture is exhausted, and air circulation in which the dry hot air is blown is continued, thereby washing the laundry in the rotating drum. Is dried (see Patent Document 1).
Japanese Patent Laid-Open No. 10-235093 (pages 2 to 4, FIG. 1)

  Since the rotating drum has a large number of through-holes through which water and air can pass through the entire peripheral surface, when the exhaust is exhausted from the water tank containing the rotating drum, moisture in the rotating drum containing the laundry containing moisture is removed. The contained air passes through the through holes and is discharged from the water tank to the outside. On the other hand, when hot air that has been dehumidified from air containing exhausted moisture and dried by heating is blown into the rotating drum, even if it is simply blown into the water tank, it will mix with the exhaust containing moisture and the drying capacity will decrease. In the prior art, warm air is blown into the rotating drum from the front opening of the rotating drum which is opened to take in and out laundry from the rotating drum.

  However, just before the front opening of the rotating drum, there is a door body that opens and closes when the laundry is put in and out, so that heated air is blown into the rotating drum from the front opening. Then, since the heated air hits the door body, the temperature of the door body rises and becomes too hot to be touched by the hand. The laundry dryer not only continues the drying process until the laundry is completely dried, but also opens the door in the middle of the drying process to take out the freshly dried laundry from the rotating drum, and then dries it completely by drying in the sun. By using it, users can freely open the door body, such as how to save power consumption required for the drying process and how to take clothes out during drying because it is more convenient to dry clothes for ironing clothes etc. Since it is comprised, if the door body will be heated to high temperature by ventilation of heating air, the advantage which can open a door body freely cannot be utilized.

  In the prior art, since the water tank on the vibrating body side and the dehumidifying means on the stationary body side are connected by a hose, if the hose comes off for some reason such as vibration, the water in the water tank will leak. There was a problem.

  Furthermore, in the prior art, the air circulation path for the drying function is arranged around the outside of the aquarium, and a blower fan, a dehumidifying means, etc. are configured at the main points, so that the drying function is configured. The volume which a component occupies in a housing | casing became large, and the subject that a drum type washing-drying machine will enlarge unnecessarily occurred.

  An object of the present invention is to provide a drum-type washing and drying machine having a dehumidifying structure that efficiently dehumidifies air containing moisture exhausted from the inside of a rotating drum.

In order to achieve the above object, a drum-type washing and drying machine according to the present invention includes a housing, a cylindrical water tank disposed in the housing and having a laundry input port on the front surface, and housed in the water tank. A rotating drum having a plurality of through holes formed on a peripheral surface and a bottom surface of a bottom cylindrical shape, and the water tank includes a water tank main body formed in a bottomed cylindrical shape having a bottom surface on the rear side, and the laundry input port. consists of a front water tank lid attached to the open end of the tub body having the front, the water tank body, the outer peripheral surface of that, the cylindrical axis direction, toward the bottom surface from said open end a ventilation duct which penetrates a dehumidification duct in which the opening end side the bottom side is closed is opened is integrally formed at the same time the water tank body when adjacent to each other, wherein the dehumidifying duct outside peripheral surface the dehumidifying duct adjacent exhaust port communicating within a long in the cylinder axis direction And mouth, wherein the dehumidifying duct is a heat exchanger is arranged to the water which is the water supply from the outside is cooled by the flow, the tub lid is in the open end of the blower duct from the open end of the dehumidifying duct It has a communication passage forming an air flow path, and a dust filter which is removably mounted from the periphery of the laundry entrance toward the coupling portion between the ventilation duct and the communication passage toward the the outer bottom surface of the rear of the tank body, the heating duct to form a blowing conduit between the blower port opening on the bottom of the tub and the bottom side of the opening of the air duct comprises a blowing fan and the heater therein mounting et is the the housing front side is characterized by comprising door openably on opposite sides is provided on the laundry inlet and the opening end of the rotary drum of the water tub.

According to the above configuration, the air circulation path constituting the drying function is formed integrally with the water tank, and by driving the blower fan disposed in the heating duct, the exhaust air is discharged from the peripheral surface in the water tank toward the dehumidifying duct. The air containing moisture in the rotating drum passes through the through hole and enters the dehumidifying duct from the water tank, and the moisture in the air is dehumidified by exchanging heat with the heat exchanger. Since the dehumidification duct communicates with the air duct through a communication channel formed in the water tank lid attached to the opening end side of the water tank, the dehumidified air flows into the air duct and is disposed so as to be detachable at the inlet. The lint such as lint mixed in the air is removed by the dust filter and flows from the air duct to the bottom surface of the water tank and flows into the heating duct. Since the heater is disposed in the heating duct, the air is heated and blown again into the water tank from the air outlet formed on the bottom surface of the water tank. The heated air flows from the water tank into the rotating drum through the through-hole, so that the laundry stirred by the rotation of the rotating drum touches the moisture, takes it into the water tank, and then returns to the dehumidifying duct from the exhaust port. Exhausted. By repeating this air circulation, the laundry is efficiently dried, and since there is no connection with a hose or the like, the risk of water leakage can be reduced.

In the above structure, a cylindrical water tank cross section is circular, the enclosure in which the cross-sectional shape formed in a substantially square, the air duct and dehumidification duct is formed in a cylindrical axis direction, of the circular and substantially square corners A corner portion of a drum-type washing and drying machine in which a circular water tank is arranged inside a rectangular casing by being disposed so as to be positioned at a corner portion on the upper side of the casing that becomes a space that can be formed into a portion. Since the formation part of the ventilation duct and the dehumidification duct can be accommodated in the space which can be made, it can suppress that a housing | casing enlarges by providing a drying function.

  According to the present invention, since the air circulation path can be formed integrally with the water tank, the risk of water leakage can be reduced, and a conventional configuration in which a duct, a blowing means, etc. are arranged outside the water tank. Without increasing the size, the number of manufacturing steps and the manufacturing cost can be suppressed. Further, since the heated air is blown into the rotating drum from the bottom surface side, the temperature rise of the door body is suppressed, and at the same time, the heated air is distributed in the rotating drum, so that the drying performance can be improved.

  FIG. 1 shows a configuration of a main part of a drum type washing and drying machine 1 according to an embodiment. A water tank 3 is supported in a slanted state in a housing 6 by a suspension structure (not shown). A rotating drum 2 formed in a bottomed cylindrical shape is rotatably supported, and is rotated by a drum drive motor 7 attached to the back surface of the water tank 3 so that the rotation speed can be changed and the rotation direction can be switched. Further, the rotary drum 2 is formed on the front side of the housing 6 because the rotation axis direction is inclined so that the rotation axis direction is inclined downward from the front side opening as shown in the drawing toward the back side as the bottom surface. Opening the door body 9 that can be opened and closed on the inclined surface 6a is less likely to bend when the laundry is put in and out of the rotating drum 2, and the front side of the drum-type washing and drying machine 1 is reduced. Since it is not necessary to secure a space with a margin, the drum-type washing and drying machine 1 can be installed in a narrow space such as a washroom.

  In addition to the above-described components, a water supply pipe 12 for supplying water into the water tank 3 and a drain pipe 13 for discharging the water in the water tank 3 to the outside are disposed in the housing 6. Further, as shown schematically in FIG. 2, the air in the water tank 3 exhausted from the exhaust port 21 is removed from the dehumidifying duct 16 so that the drying process of drying the laundry accommodated in the rotary drum 2 can be performed. In addition, a drying air circulation path is formed through the dust filter 17, the air duct 18, and the heating duct 19 so as to send air again from the air outlet 22 into the water tank 3.

  As shown in FIG. 3, the water tank main body 3a is formed in a bottomed cylindrical shape, and the air duct 18 penetrating from the opening end side to the bottom surface side in the outer peripheral surface cylindrical axis direction, the bottom surface side is closed, and the opening end side is Opening dehumidification ducts 16 are formed adjacent to each other and at the same time adjacent to the water tank body 3a, and an exhaust port 21 communicating with the inside of the dehumidification duct 16 is formed in the cylindrical axis direction on the circumferential surface adjacent to the dehumidification duct 16 of the water tank body 3a. A heat exchanger 51 that is opened and cooled by running water supplied from outside is disposed in the dehumidifying duct 16.

On the opening end side of the water tank body 3 a, as shown in FIG. 4, the laundry inlet / outlet port 11 leading to the inside of the rotary drum 2 and the air flow path from the opening end of the dehumidifying duct 16 toward the opening end of the air duct 18. A water tank lid provided with a communication flow path 16a that forms a wall and a dust removal filter 17 that is detachably mounted from the peripheral edge of the laundry entrance / exit 11 toward the connection portion between the communication flow path 16a and the air duct 18 The body 3b is attached. Moreover, as shown in FIG.4 (c), the heating duct 19 is attached to the outer bottom face of the water tank main body 3a so that it may connect with the ventilation duct 18. As shown in FIG.

  As shown in FIG. 5, the heating duct 19 is provided with a blower fan 15 at a portion communicating with the bottom side opening of the blower duct 18, provided with a heater 20 inside, and opened from the blower duct 18 to the bottom surface of the water tank body 3 a. The ventilation duct which goes to the ventilation port 22 to be formed is formed. The heating duct 19 shown in FIG. 5 is formed in a sealed pipe line by joining the lower casing 24 and the upper casing 23. In FIG. 5, the upper casing 23 is shown in a removed state to show the internal configuration. is doing. Moreover, although the bearing and drum drive motor 7 which support the rotating shaft of the rotating drum 2 are attached to the center of the outer bottom face of the water tank main body 3a, the illustration is abbreviate | omitted.

  As shown in FIG. 1, the water tank 3 configured as described above is disposed in a housing 6, a water supply pipe 12 is connected to the water tank 3, and a drain is formed at one end of a drain groove 10 formed at the lower part of the water tank 3. A pipe line 13 is connected, and the rotating drum 2 formed in a bottomed cylindrical shape is accommodated in the water tank 3. The door body 9 provided on the front side of the housing 6 is opened, the laundry is put into the rotating drum 2 from the laundry entrance / exit 11, and water is supplied into the water tank 3 through the water supply pipe 12. By controlling the rotation of the rotating drum 2, the washing process, the rinsing process, and the dewatering process can be performed, and the drum type washing and drying machine 1 can be operated as a washing machine.

  The drum-type washing and drying machine 1 can be used to dry the laundry after the dehydration process by the drying process, or to perform only the drying process as a drier for drying wet clothes and the like put in the rotary drum 2. Implementation can also be arbitrarily selected. Hereinafter, the operation of the drying process will be described.

  When an object to be dried is put into the rotary drum 2 and a drying operation is started, the blower fan 15 and the heater 20 are energized, the water injection valve 53 is opened, and cooling water is injected into the heat exchanger 51. The rotation of the blower fan 15 generates an air flow in the air circulation path. A large number of through holes 8 are formed on the peripheral surface of the rotary drum 2, and a plurality of vent holes 39 are formed on the bottom surface of the rotary drum 2 on the circumference facing the air outlet 22 formed in the water tank 3. An air circulation path passing through the rotary drum 2 is formed so that the air circulation path is shown as a hollow arrow.

  Air containing moisture in the rotary drum 2 is exhausted into the dehumidification duct 16 from the exhaust port 21, and moisture in the air exhausted by the heat exchanger 51 disposed in the dehumidification duct 16 is dehumidified. Since the water injected from the water injection nozzle 52 flows into the heat exchanger 51 and is cooled, the air in the water tank 3 exhausted from the exhaust port 21 is cooled, whereby water vapor is condensed and dehumidified. The cooling water poured into the heat exchanger 51 and the water generated by condensation flow in the water tank 3 from the dehumidification duct 16 and are discharged to the outside from the drain pipe 13 as indicated by broken line arrows in FIG.

  The dehumidified air in the dehumidifying duct 16 passes through the communication channel 16a, and lint such as lint mixed in the air when passing through the dust removing filter 17 disposed at the inlet of the blower duct 18 is filtered and blown. It flows from the duct 18 to the bottom side of the water tank 3. The air duct 18 is a conduit for guiding air to the heating duct 19 disposed on the back side of the water tank 3, and the drying air is provided by the air blowing fan 15 provided at a connection portion of the heating duct 19 with the air duct 18. A one-way air flow is formed in the circulation path.

  A heater 20 is disposed in the heating duct 19, and the air flowing from the blower duct 18 is heated and blown into the water tank 3 as hot air that has been heated and dried from the blower opening 22 that leads to the water tank 3. The heating duct 19 is provided with a temperature sensor 55 that detects the temperature of the air blown from the blower opening 22, and is configured so that the heating temperature by the heater 20 can be adjusted by the detected temperature of the blown air. In addition, the heating duct 19 detects a temperature fuse 27 that detects an abnormal overheating state of the heater 20 and cuts off the power to the heater 20, and an overflow water level at which water or bubbles flowing backward from the air blowing port 22 flows into the air blowing fan 15 side. An overflow water level sensor 29 to be detected is disposed.

  Since the air blown into the water tank 3 from the blower port 22 flows into the rotary drum 2 from the vent hole 39 or the through hole 8 formed on the bottom surface of the rotary drum 2, moisture is removed from the laundry by the dehumidified and heated air. Since it is taken away and exhausted again from the exhaust port 21 to the dehumidifying duct 16, the drying of all the laundry is promoted by the stirring by the rotation of the rotary drum 2, and the drying of the laundry is repeated by repeating this air circulation for a predetermined time. Made.

  Since the air outlet 22 that blows the heated air into the water tank 3 is formed near the bottom of the bottom of the water tank 3, the heated air is blown into the dry object to be stirred by the rotation of the rotary drum 2. Therefore, it is possible to obtain a state in which the heated air uniformly touches the object to be dried and improve the drying efficiency. Further, since the blower fan 15 is disposed at a position close to the blower port 22, the blower fan 15 can be blown into the water tank 3 in a state where the flow resistance is low, so that the heated air can be efficiently blown.

  In the configuration for carrying out the drying step, the exhaust port 21 is long in the cylindrical axis direction of the water tank body 3a, so that the exhaust port area can be increased, the exhaust resistance can be reduced, and the air volume can be increased. As a result, the dehumidifying effect by heat exchange can be enhanced. Further, since the exhaust port 21 can be opened in the arc tangential direction of the water tank main body 3a, water scattered with the rotation of the rotating drum 2 flows into the dehumidifying duct 16 during the rinsing process and flows into the dehumidifying duct 16 during the drying process. The lint such as lint attached to the inside 16 can be washed away.

  Further, since the dust removal filter 17 can be provided at a position where it can be inserted and removed from the laundry entrance / exit 11, the dust removal filter 17 can be seen at a position that can be seen by opening the door body 9 that opens and closes before and after using the drum type washing dryer 1. There is a handle 17a, and it is possible to obtain a state suitable for making the filter cleanly executed.

  As described above, according to the present invention, the components for carrying out the drying process in a compact manner can be arranged integrally with the outer periphery of the water tank, the risk of water leakage is reduced, and the drum is not increased in size. A type washer / dryer can be configured. Moreover, since the exhaust from the rotating drum and the air blowing into the rotating drum are smoothly performed, a drum-type washing and drying machine capable of performing a drying process with good drying efficiency can be provided.

Sectional drawing which shows the principal part structure of the drum type washing-drying machine which concerns on embodiment. The schematic diagram which shows the whole structure of the drying function with which a drum type washing-drying machine same as the above is provided. (A) which shows the structure of a water tank main body is a front view, (b) is a side view, (c) is a rear view. (A) which shows the state which attached the water tank cover body to the water tank main body, (b) is a side view, (c) is a rear view. The top view on the water tank back side which shows the structure in a heating duct.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum-type washing dryer 2 Rotating drum 3 Water tank 3a Water tank main body 3b Water tank lid body 6 Case 7 Drum drive motor 8 Through hole 9 Door body 11 Laundry entrance / exit 15 Air blower fan 16 Dehumidification duct 16a Communication flow path 17 Dust removal filter 18 Air blower Duct 19 Heating duct 20 Heater 21 Exhaust port 22 Blower port 51 Heat exchanger 52 Injection nozzle

Claims (2)

A casing, a cylindrical water tank disposed in the casing and having a laundry input port on the front surface, and a rotation in which a large number of through holes are formed on the circumferential surface and bottom surface of the bottomed cylindrical shape housed in the water tank and a drum, the tub includes a water tank body that is formed into a bottomed cylindrical shape having a bottom surface to the rear, the laundry inlet to have the front the water tank body in front of the water tank lid attached to the open end consists of a body, said water tank body, the outer peripheral surface of that, the cylindrical axis direction, and the air duct penetrating toward the bottom surface side from said open end, said open end said bottom side is closed is opened dehumidifying and the duct is integrally formed at the same time the water tank body when adjacent to each other, wherein the dehumidifying air outlet communicating with the duct on the outer peripheral surface dehumidification duct adjacent the longer open to the cylindrical axis direction, the dehumidifying duct , the flow of water, which is the water supply from the outside Heat exchangers retirement is disposed, the tub lid comprises a communication passage forming an air flow path extending from the open end of the dehumidifying duct to the open end of the blower duct, said blower and said communication passage has from the peripheral edge of the laundry entrance toward the coupling portion between the duct and removably loaded dust filter, the outer bottom surface of the rear of the tub body, the comprises a blower fan and a heater inside heating duct to form a blowing conduit between the blower port opening with the bottom side of the opening of the air duct to the bottom of the water tub is mounted, et al is, on the front side of the housing, the laundry charged in the tub mouth and drum type washing and drying machine according to claim openably door to become disposed on the surface facing the open end of the rotary drum. A cylindrical water tank having a circular cross-sectional shape is a space in which a blower duct and a dehumidifying duct formed in the direction of the cylindrical axis can be formed in a corner portion of the circular shape and the substantially rectangular shape in a casing whose cross-sectional shape is formed in a substantially rectangular shape. The drum-type washing / drying machine according to claim 1, wherein the drum-type washing / drying machine is disposed so as to be positioned at a corner portion on an upper side of the casing .

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