JP2005124761A - Drum type washing-drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type washing-drying machine equipped with a structure for preventing water to a blowing fan which is provided on a slope on the lower side of a water tub from entering. <P>SOLUTION: This drum type washing-drying machine is constituted into a structure wherein the drying performance is increased by feeding hot air from the lower section on the back surface side into a rotating drum 2 by facilitating the loading/unloading of laundry by arranging the rotating drum 2 and the water tub 3 in a manner to be tilted. Thus, the blowing fan is attached on the downward slope on the back surface of the water tub, and water becomes easier to enter a fan motor 58 through the slope. Then, water is prevented from entering the inside of the fan motor 58 by providing a water shielding wall 60, a cylindrical wall 61, and a ring-shaped member 62. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a drum-type washing / drying machine in which laundry is accommodated in a rotating drum that is rotatably disposed in a water tub, and each step of washing, rinsing, dehydration, and drying is performed.

  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.

  In the drying function, the air containing moisture in the rotating drum containing the laundry containing moisture is exhausted outside the tank, and the moisture in the exhausted air is dehumidified by the dehumidifying means and then heated. It is constituted so that the warm air heated and dried by means is blown into the water tank again, the air containing moisture is exhausted, and the air circulation in which the dried warm air is blown is continued, so that The laundry is dried.

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 warm air dehumidified and heated from the air containing exhausted air 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 be reduced. Warm air is blown into the rotating drum from above the front opening of the rotating drum that is opened to take in and out the laundry (see Patent Document 1).
Japanese Patent Laid-Open No. 7-47195 (pages 2 to 4, FIG. 1)

  Since the temperature of the inside of the drum-type washing and drying machine is large, dew condensation is likely to occur and water droplets may scatter, so it is necessary to take measures to prevent water from entering the electrical components. In particular, when a blower fan for circulating the air for drying in the drying process is disposed below, it is required to provide a countermeasure structure so that water does not enter the fan motor that rotationally drives the fan. In the above prior art, since the blower fan is horizontally arranged at the uppermost position in the casing, the waterproof measure can be simplified.

  However, in order to realize a blower structure that can uniformly supply dry hot air to the laundry contained in the rotating drum targeted by the present invention, it is necessary to arrange a blower fan behind the water tank, Since the rotating drum has a structure in which the rotation axis direction is inclined from the horizontal direction and is disposed in the water tank, the blower fan is disposed in a state inclined from the horizontal direction, so that water droplets adhere to the fan motor. Or water easily enters the fan motor. Accordingly, it is required to provide a waterproof structure that prevents water from adhering to the fan motor and entering the fan motor.

  An object of the present invention is to provide a drum type washing and drying machine provided with a waterproof structure for a fan motor that drives a blower fan.

  In order to achieve the above object, the present invention provides a laundry container in a bottomed cylindrical drum having a large number of through-holes formed in a substantially bottomed cylindrical water tank disposed in a housing. A rotating drum that is housed and rotated by a drum drive motor is disposed, and the water tank and the rotating drum are inclined so that the rotation axis direction of the rotating drum is inclined downward from the front side toward the back side, The drying air circulation path for blowing the air exhausted from the water tank into the water tank through the air circulation path provided with the dehumidifying means, the air blowing means, and the heating means into the water tank is an inclined surface of the water tank back surface. In the drum-type washer / dryer provided above, the fan unit is fixed on a downwardly inclined surface of the outer surface of the housing that forms the drying air circulation path with its rotating shaft penetrating into the housing. A waterproof means for preventing water from adhering to the outer surface of the fan motor, and a water immersion blocking means for preventing water from entering the fan motor. And is provided.

  In the drum type washing and drying machine, the water tank and the rotating drum are inclined and a drying air circulation path for blowing the hot air dried from the back side of the rotating drum is formed. A fan portion is arranged in a housing provided at an inclined portion, and a fan motor is attached outside the housing. In such a structure, condensed water or scattered water easily enters the fan motor along the inclined surface, so that water can enter the fan motor by providing the fan motor with waterproof means and water blocking means. It is possible to prevent the occurrence of malfunctions.

  In the above configuration, the waterproof means is configured as a water shielding wall formed on the outer surface of the housing so as to surround the side periphery of the fan motor. Also, water can be prevented from entering from the side periphery and the housing mounting surface.

  Further, the water blocking means is configured as a cylindrical wall formed at a predetermined height so as to surround the rotation shaft on the inner surface of the housing, so that the water that has flowed down along the inner surface of the inclined housing is transmitted along the rotation shaft. Intrusion into the fan motor can be prevented.

  In addition, by having a drainage hole penetrating at the bottom of the wall formed as the water shielding wall or cylindrical wall, it is possible to discharge the water that has entered inside from the drainage hole without retaining it. it can.

  Further, the water blocking means is provided as a ring-shaped member fixed to the rotating shaft, so that water flowing from the fan along the rotating shaft can be blocked by the ring-shaped member.

  The cylindrical wall is formed so that the top portion is located closer to the rotational axis than the lowermost part of the ring-shaped member fixed to the rotational shaft, so that water blocked by the ring-shaped member is dripped and the inside of the cylindrical wall is Never fall into.

  According to the present invention, since the rotating drum and the water tank are arranged in an inclined manner and the air is blown from the back side of the water tank, the blower fan is attached to the obliquely inclined portion on the back side of the water tank. Although it easily enters the fan motor, since the waterproof means and the water blocking means are provided in the fan motor, it is possible to prevent water from entering the fan motor.

  FIG. 1 shows a configuration of a main part of a drum-type washing / drying machine 1 according to the embodiment. A water tank 3 is supported in an obliquely inclined state by a suspension structure (not shown) in a washing machine housing 6, The rotary drum 2 formed in a bottomed cylindrical shape is rotatably supported. The rotary drum 2 is rotationally driven by a drum drive motor 7 attached to the back of the water tank 3 so that the rotational speed can be varied and the rotational direction can be switched. Further, since the rotating drum 2 is inclined so that the direction of the rotation axis is inclined downward from the front side opening as shown in the drawing toward the back side as the bottom surface, the front side of the washing machine casing 6 is arranged. Opening the door body 9 that can be opened and closed on the inclined surface 6a formed on the rotating drum 2 reduces the amount of bending when the laundry is taken in and out of the rotating drum 2, and the drum-type washing machine 1 Since there is no need to secure a space on the front side, 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, the washing machine housing 6 includes a water supply unit 12 for supplying water into the aquarium 3, a drainage unit 13 for draining water in the aquarium 3 to the outside, and the like. Further, as shown in FIGS. 2 and 3, the air in the water tank 3 exhausted from the exhaust port 21 is dehumidified so that a drying process of drying the laundry accommodated in the rotary drum 2 can be performed. 16, a drying air circulation path through which air is blown again from the blower opening 22 into the water tank 3 through the yarn waste collecting filter 17, the blower duct 18, and the heating duct 19 is configured.

  As shown in FIG. 2, the dehumidification pipe line 16 is formed adjacent to the side peripheral surface of the water tank 3, and communicates with the inside of the water tank 3 through an exhaust port 21 that opens to the side peripheral surface of the water tank 3. Dehumidifying means 38 having a water injection nozzle 52 and a heat exchanger 51 through which water sprinkled from the water injection nozzle 52 flows is disposed in the dehumidification pipe line 16, and the air in the water tank 3 exhausted from the exhaust port 21. Is dehumidified by being cooled by the dehumidifying means 38. The dehumidifying duct 16 is connected to the air duct 18 on the front side of the washing machine housing 6, and a lint collecting filter 17 that filters dust such as lint contained in the air is provided at the inlet of the air duct 18. It is arranged. The air duct 18 is a duct for guiding air to the heating duct 19 disposed on the back side of the water tank 3, and is disposed adjacent to the side peripheral surface of the water tank 3 together with the dehumidifying duct 16. As shown in FIG. 3, the air duct 18 is connected to a heating duct 19 formed in a substantially arc shape on the back side of the water tank 3, and the air circulation path for drying is provided by the air fan 15 disposed in the connection portion. A one-way air flow is formed.

  A heater 20 is disposed in the heating pipe 19 and heats the air flowing from the blower pipe 18 and feeds it into the water tank 3 as hot air that has been heated and dried from a blower opening 22 that leads to the water tank 3. . The heating pipe 19 is provided with a temperature sensor 55 that constitutes a temperature detection unit 54 that detects the temperature of the air blown from the blower opening 22, and the heating temperature by the heater 20 is adjusted according to the detected temperature of the blown air. It is configured to be able to. The heating pipe 19 detects an abnormal overheating state of the heater 20 and shuts off the power to the heater 20, and the overflow water level where water or bubbles flowing back from the blower port 22 flows into the blower fan 15 side. An overflow water level sensor 29 for detecting the above is disposed.

  The drum-type washing and drying machine having the above-described configuration is configured to perform a drying process for drying the dehydrated laundry after completion of the washing process, the rinsing process, and the dehydrating process, or to dry wet clothes and the like. It is also possible to arbitrarily carry out only the drying step. When the execution of the drying process is selected and input, the blower fan 15 and the heater 20 are controlled to be turned on and the water injection valve 53 is opened, so that the blower fan 15 is rotationally driven to enter the drying air circulation path. A drying operation for circulating the air in the water tank 3 is performed.

  As shown in FIG. 2, the air in the rotary drum 2 is discharged into the water tank 3 from the through holes 8 formed in the peripheral surface by the rotation of the blower fan 15 and is exhausted into the dehumidifying conduit 16 from the exhaust port 21. The heat exchanger 51 disposed in the dehumidification pipe line 16 is provided with dehumidifying means 38 for pouring water from the water injection nozzle 52 by opening the water injection valve 53, so that the moisture exhausted into the dehumidification pipe line 16 The air containing is cooled and dehumidified. The air dehumidified in the dehumidifying pipe 16 passes through the lint collecting filter 17, passes through the blower pipe 18, is led to the rear of the water tank 3, flows into the heating pipe 19 provided on the back surface of the water tank 3, and is heated. It is heated by 20 and blown into the water tank 3 from the blower port 22. Since the air blown into the water tank 3 flows into the rotating drum 2 from the vent 39 or the through hole 8 formed on the bottom surface of the rotating drum 2, moisture is taken away from the laundry by the dehumidified and heated air, Drying of all the laundry is promoted by stirring by the rotation of the drum 2, and the laundry is dried by repeating this air circulation for a predetermined time.

  As shown in FIG. 4, a plurality of vent holes 39 are formed on the circumference (corresponding to the air outlet 22 formed in the water tank 3) on the bottom surface (rear surface) of the rotary drum 2, Most of the hot air blown into 3 is fed into the rotary drum 2 from a vent 39 formed in the rotating rotary drum 2. Since the air blowing port 22 is formed below the center of the rotating drum 2, the warm air is blown from the lower side of the rotating drum 2 and rises, so that the laundry stirred in the rotating drum 2 is touched over a wide area. Can take away moisture from the laundry.

  In the above configuration, the rotary drum 2 and the water tank 3 are inclined, and the dry air is blown from the back side of the water tank 3, so that the blower fan 15 is a heating provided on the back surface of the water tank 3, as shown in FIG. It is attached to the conduit 19. In such a configuration, since the blower fan 15 is attached to the downward inclined surface on the back side of the water tank 3, the dripping water or the water flowing through the inclined surface enters the fan motor constituting the blower fan 15. It becomes easy to cause a failure. Therefore, it is required to provide a waterproof structure that protects the fan motor from water. This waterproof structure will be described with reference to FIG.

  FIG. 5 shows the blower fan 15 and its mounting structure. The blower fan 15 is attached to a lower duct case (housing) 23 that covers the upper duct case 24 that constitutes the heating duct 19 shown in FIG. It is attached. The blower fan 15 is mounted on the outer surface side of the lower duct case 23 with a fan motor 58 passing through the rotary shaft 58a of the heating pipe 19 and a fan 57 disposed in the heating pipe 19 on the rotary shaft 58a. It is fixed. A water shielding wall (waterproof means) 60 formed in a cylindrical shape so as to surround the side periphery of the fan motor 58 protrudes from the outer surface of the lower duct case 23, and water droplets are secured while ensuring the heat dissipation of the fan motor 58. Is prevented from adhering. In addition, a cylindrical wall (infiltration blocking means) 61 formed in a stepped cylindrical shape is formed on the inner surface of the lower pipe case 23 so as to surround the rotation shaft 58 a, and water is transferred into the fan motor 58 through the rotation shaft 58 a. To prevent intrusion. Since the inner surface of the lower pipe case 23 is an upwardly inclined surface, the cylindrical wall 61 can be discharged outside without being retained in the cylindrical wall 61 when water enters the cylindrical wall 61. A drain hole 61a is formed at the lowest position. Further, a ring-shaped member (water immersion blocking means) 62 is fixed to the rotating shaft 58a so that water does not enter the fan motor 58 from the fan 57 through the rotating shaft 58a. Since the water blocked by the ring-shaped member 62 is dropped from the lowermost part of the ring-shaped member 62, the water drops when the cylindrical wall 61 is formed so as to be positioned closer to the rotary shaft 58a than the water dropping line W. Water does not fall into the cylindrical wall 61. The reason why the cylindrical wall 61 is formed in the stepped structure is to prevent water dripped from the ring-shaped member 62 from entering the cylindrical wall 61.

  As described above, according to the present invention, the rotating drum is inclined and the drying air circulation path for blowing the warm air dried from the back side of the rotating drum is formed. A drum type washing and drying machine with excellent performance can be constructed. When the drying function is configured in this way, the blower fan is attached to the obliquely inclined part on the back of the water tank, so that condensed water and scattered water can easily enter the fan motor attached to the downwardly inclined surface through the inclined surface. However, it is possible to provide a drum-type washing and drying machine that can prevent the occurrence of failure due to water entering the fan motor by providing the fan motor with waterproof means and water blocking means.

Sectional drawing which shows the principal part structure of the drum type washing-drying machine which concerns on embodiment. Sectional drawing which shows the structure of the drying function with which a drum type washing-drying machine same as the above is provided. The top view on the water tank back side which shows the structure in a heating pipe line. The top view which shows the vent formed in the bottom face of a rotating drum. Sectional drawing which shows the waterproof structure of a fan motor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum type washing and drying machine 2 Rotating drum 3 Water tank 7 Drum drive motor 8 Through hole 15 Blower fan (blower means)
16 Dehumidification pipeline 17 Waste thread filter (dust removal means)
18 Blower line 19 Heating line 20 Heater (heating means)
DESCRIPTION OF SYMBOLS 21 Exhaust port 22 Blower port 38 Dehumidification means 39 Ventilation hole 57 Fan 58 Fan motor 58a Rotating shaft 60 Water shielding wall (waterproof means)
61 Cylindrical wall (flood blocking means)
61a Drain hole 62 Ring-shaped member (infiltration blocking means)

Claims (6)

The laundry is accommodated in a bottomed cylindrical drum having a large number of through holes formed in the peripheral surface in a substantially bottomed cylindrical water tank disposed in the housing, and is rotated by a drum drive motor. A rotating drum is disposed, and the water tank and the rotating drum are disposed so that a rotation axis direction of the rotating drum is inclined downward from the front side to the back side, and dehumidifying means exhausts air exhausted from the water tank, A drum-type washing and drying machine in which an air circulation path for drying is provided on the inclined surface of the rear surface of the water tank through the air circulation path provided with the air blowing means and the heating means. In
The blowing means includes a fan motor that is fixed on the downwardly inclined surface of the outer surface of the housing that forms the drying air circulation path with a rotation shaft passing through the housing, and a fan motor that is fixed to the rotation shaft in the housing. A drum comprising: a provided fan; and a waterproof means for preventing water from adhering to an outer surface of the fan motor; and a water immersion blocking means for preventing water from entering the fan motor. Type washing dryer. The drum type washing and drying machine according to claim 1, wherein the waterproof means is a water shielding wall formed on an outer surface of the housing so as to surround a side peripheral portion of the fan motor. The drum-type washing / drying machine according to claim 1, wherein the water blocking means is a cylindrical wall formed on the inner surface of the housing so as to surround the rotation shaft. The drum type washing and drying machine according to claim 2 or 3, wherein a drainage hole is provided at the bottom of the wall surface. The drum-type washing / drying machine according to claim 1, wherein the water blocking means is a ring-shaped member fixed to the rotating shaft. The flood blocking means includes a cylindrical wall formed on the inner surface of the housing so as to surround the rotation shaft and a ring-shaped member fixed to the rotation shaft, and the cylindrical wall is closer to the rotation shaft than the lowermost part of the ring-shaped member. The drum-type washing / drying machine according to claim 1, wherein the drum-type washing / drying machine is formed so that the top portion is located on the top.

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