JP4812595B2 - Drum type washer / dryer - Google Patents

Description

  The present invention relates to a drum type laundry dryer that includes a drying device having a heat exchanger and performs washing, dehydration and drying.

  A drum type washing and drying machine is described in JP-A-2005-224621 (Patent Document 1). In this drum type washing and drying machine, a circulation air passage is connected from a heater outlet to a side surface of a circular opening for taking in and out laundry. Moreover, as for the drum type washing-drying machine described in Unexamined-Japanese-Patent No. 2005-224351 (patent document 2), the blower outlet from a heater exit is connected to the front direction of the outer tank via packing.

Japanese Patent Laying-Open No. 2005-224621 (page 7, FIG. 1) Japanese Patent Laying-Open No. 2005-224351 (page 12, FIG. 2)

  In order to shorten the drying time in the washing and drying machine, it is necessary to cool the dehumidifying duct to improve the dehumidifying performance. For this purpose, it is necessary to separate the dehumidification duct from the hot outer tub, connect the inlet and outlet of the duct with a duct having a flexible structure, and absorb the displacement caused by the vibration of the outer tub.

  In the configuration of the prior art, a circulation air passage is connected from the heater outlet to the side surface of the circular opening for taking in and out the laundry, so it becomes difficult to absorb the displacement due to the vibration of the outer tub, particularly the vibration in the front-rear direction of the outer tub. Further improvement is required to improve the strength reliability of the duct connecting portion. In addition, when the outlet from the heater outlet is connected to the front of the outer tub via a packing, the length of the connecting part is required to absorb the vibration of the outer tub. It is disadvantageous for.

  An object of the present invention is to provide a drum-type washing and drying machine with improved strength reliability of a duct connection portion. Another object of the present invention is to provide a compact drum type washing and drying machine.

  In order to achieve the above object, a washing and drying machine according to the present invention includes a rotatable rotating drum having a rotation axis centered sideways, an outer tub containing the rotating drum and storing washing water, and the outer tub. A drum-type washing and drying apparatus including an outer frame to be included, and a drying device including a dehumidifying unit for blowing warm air to the rotating drum, a heater, and a blower, and at least a part of the drying device is disposed on the outer frame side In the machine, the ventilation path on the drying device side is connected to the outer tub side via a bellows, and the bellows is provided so that its expansion / contraction direction is along the front surface of the outer tub 20 or substantially along the vertical direction, It is provided outside the outer peripheral edge of the front surface of the outer tub.

  According to the present invention, it is easy to absorb the vibration of the outer tub, and the strength reliability of the duct connecting portion can be improved. Furthermore, a compact drum type washing and drying machine can be provided.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of a drum type washing and drying machine according to an embodiment of the present invention. On the upper part of the base 1, an outer frame 2 composed of a steel plate and a resin molded product is placed. The front side of the outer frame 2 is provided with a door 3 for loading and unloading the laundry 30, a front cover 22 and a back cover 23 on the back.

  FIG. 2 relates to an embodiment of the present invention, and shows a cross-sectional view of a drum type washing and drying machine. FIG. 3 relates to the embodiment of the present invention, and shows a front view of the drum type washing and drying machine with the front cover 22 removed. FIG. 4 relates to the embodiment of the present invention, and shows a rear view of the drum type washing and drying machine with the back cover 23 removed. An outer tub 20 is provided inside the outer frame 2. The outer tub 20 is provided with a plurality of suspensions 21 at the lower portion thereof, and is supported by these suspensions 21.

  The laundry 30 is configured to be put into the rotary drum 29 inside the outer tub 20 by opening the door 3. The rotating shaft of the rotating drum 29 is lateral. The horizontal direction of the rotating shaft includes not only horizontal but also a slanted surface such that the front side is higher than the back side (back side). A fluid balancer 31 is provided on the outer periphery of the opening of the rotary drum 29 to reduce vibration due to unbalance of the laundry 30 during dehydration. A plurality of lifters 33 for lifting the laundry 30 are provided inside the rotary drum 29. The rotary drum 29 is directly connected to a drum driving motor 36 via a main shaft 35 connected to a metal flange 34. A rubber packing 38 made of an elastic body is attached to the opening of the outer tub 20. The packing 38 serves to maintain the watertightness between the outer tub 20 and the door 3. This prevents water leakage during washing, rinsing and dehydration. The rotating drum 29 has a large number of small holes (not shown) for centrifugal dehydration and ventilation on the side wall. The drainage port 37 opened in the bottom wall of the outer tub 20 is connected to the drainage hose 9 via the drainage electromagnetic valve 8.

The hot air blowing means for drying the laundry 30 in the rotating drum 29 is constituted by the drying device 6 including the dehumidifying duct 5, the blower 61, and the heater 62. The drying device 6 is fixed to the outer frame 2 side away from the outer tub 20. The ventilation port 32 serving as an outlet of the circulating air from the outer tub 20 and the dehumidifying duct 5 are connected substantially horizontally by a bellows 4 having a flexible structure. The ventilation path (duct) on the outlet side of the heater 62 and the blowing nozzle 11 are connected via the bellows 7 in order to absorb the vibration of the outer tub 20. The bellows 7 is provided so that its expansion / contraction direction is along the front surface of the outer tub 20 or substantially along the vertical direction. A connection portion between the blowing nozzle 11 and the outer tub 20 is provided on the front surface of the outer tub 20. In the present embodiment, the connection is made substantially perpendicular to the front surface of the outer tub 20 in particular.

  The bellows 7 is provided so that at least a portion that is loosely shaped and expands and contracts is located outside the outer peripheral edge of the front surface of the outer tub 20. The bellows 7 is disposed on the front side of the front surface of the outer tub 20 when the drum type washing and drying machine is viewed from the side (side). Thereby, even if the outer tub 20 vibrates, the expansion / contraction part of the bellows 7 does not contact the outer tub 20. Further, the connecting portion between the blowing nozzle 11 and the outer tub 20 is seen from the front side on which the door 3 is provided, and from the center line CC taken in the vertical direction across the rotation axis of the rotary drum 29, the left-right direction. They are arranged shifted in the (width direction) (w in FIG. 3). At this time, at least the lower end of the bellows 7 is set at a position lower than the highest portion of the outer tub 20 in the vertical direction (h in FIG. 3). Thereby, even if it arrange | positions outside the outer periphery of the front surface of the outer tub 20, the part which expands and contracts in a loose shape can prevent that the external dimension in the height direction of a drum type washing-drying machine becomes large. .

  In order to arrange the bellows 7 outside the outer peripheral edge of the front surface of the outer tub 20, the bellows 7 is connected to the outer tub 20 via a joint 71. The joint 71 is configured such that the opening surface connected to the bellows 7 is horizontal. That is, the opening surface is directed upward in the vertical direction. Thereby, since the expansion-contraction performance of the bellows 7 can be exhibited to the maximum, the bellows 7 can be shortened, and it is possible to prevent the outer dimension in the height direction of the drum type washing and drying machine from increasing.

  In this embodiment, the blowing nozzle 11 is provided on the front side of the outer tub 20, but the flow of circulating air is reversed, and the circulating air intake port (intake port) to the drying device 6 is provided on the front side of the outer tub 20. ) May be provided. Also in this case, the arrangement of the bellows 7 is effective.

  The drum-type washing / drying machine configured as described above is configured such that, in the washing process, the laundry is put into the rotating drum 29, the water is supplied with the drain electromagnetic valve 8 closed, and the washing water is stored in the outer tub 20 to rotate. The drum 29 is rotated to wash the laundry. Further, in the dehydration step, the drain electromagnetic valve 8 is opened to drain the washing water in the outer tub 20, and the rotary drum 29 is rotated to perform centrifugal dehydration. In the drying process, the rotary drum 29 is rotated with the drain electromagnetic valve 8 opened, and the blower 61 is operated to suck out the air in the outer tub 20 from the air vent 32 and pass it through the dehumidifying duct 5. After water-cooled dehumidification, the heated air is heated by the heater 62 to generate circulating air 12 that is blown from the blowing nozzle 11 toward the laundry 30 in the rotary drum 29. The dehumidification of the circulating air 12 that has taken moisture away from the laundry 30 in the rotary drum 29 causes the cooling water 52 that has flowed out from the cooling water supply pipe 51 to the wall surface in the dehumidifying duct 5 to flow down and contact the circulating air 12. This is realized. The cooling water 52 that has flowed out to the wall surface in the dehumidifying duct 5 passes through the drain port 37 and is discharged by the drain hose 9.

  In the drum type washing / drying machine configured as described above, the dehumidifying duct 5 is installed away from the outer tub 20 which becomes high temperature during the drying process, so that the dehumidifying duct 5 is sufficiently cooled and the dehumidifying performance is improved. The drying time can be shortened. Further, by providing the bellows 4 and the bellows 7 as described above, the vibration of the outer tub 20 in the vertical and horizontal directions and in the front-rear direction can be easily absorbed, and the noise caused by the vibration can be reduced. The strength reliability of the device 6 is improved. In particular, when the outer tub 20 is inclined as in the present embodiment, the amount of displacement in the front-rear direction increases. For this reason, it is important to arrange the bellows 7 so that the expansion and contraction direction thereof is along the front surface of the outer tub 20 or the substantially vertical direction, and connect the outer tub 20 side and the duct on the drying device 6 side. Further, by arranging the bellows 7 as in the present embodiment, it is possible to efficiently arrange the connecting portion in the space between the outer tub 20 and the outer frame 2 while absorbing the vibration of the outer tub 20, and the drum type laundry drying The machine can be made compact.

  The dehumidifying part and the heater may be configured as a heat pump.

The perspective view of a washing-drying machine in the implementation of the present invention is shown. FIG. 3 is a cross-sectional view of a washing / drying machine according to an embodiment of the present invention. The front view of the washing-drying machine which removed the front cover in connection with implementation of this invention is shown. The rear view of the washing-drying machine which concerns on implementation of this invention and removed the back cover is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Outer frame 3 Door 4, 7 Bellows 5 Dehumidification duct 6 Drying device 8 Drainage solenoid valve 9 Drainage hose 11 Blowing nozzle 12 Circulating air 20 Outer tank 21 Suspension 22 Front cover 23 Back cover 29 Rotating drum 30 Laundry 31 Fluid Balancer 32 Ventilation port 33 Lifter 34 Flange 35 Main shaft 36 Drum drive motor 37 Drain port 38 Packing 51 Cooling water supply pipe 52 Cooling water 61 Blower 62 Heater 71 Joint

Claims (1)

A rotatable rotating drum whose front side is inclined so that the front side is higher than the back side, an outer tub containing the rotating drum and storing washing water, an outer frame containing the outer tub, and the rotating drum A drying device including a dehumidification duct, a heater, and a blower for blowing warm air to the air, a ventilation path through which the circulating air passes through the dehumidification duct, the heater, and the blower, and an outside of the ventilation path. A drum type having a first bellows to which the tank is connected, a second bellows to which the dehumidification duct is connected, and a ventilation port serving as an outlet from the outer tank of the circulating air, and fixing the drying device to the outer frame In the washing dryer
The second bellows is provided substantially horizontally,
Connecting the ventilation path to the outer tub via a first bellows;
The first bellows is provided so that its expansion / contraction direction is along the front surface of the outer tub or substantially along the vertical direction, and is provided outside the outer peripheral edge of the front surface of the outer tub,
Furthermore, the first bellows is disposed in a manner shifted in the width direction from the center line taken in the vertical direction across the rotation axis of the rotating drum as seen from the front side provided with the door for taking in and out the laundry, At least the lower end of the stretchable part of the first bellows is arranged in a position lower than the highest part of the outer tub in the vertical direction;
The first bellows is located on the front side of the front surface of the outer tub when the drum type washing and drying machine is viewed from the side ,
A drum-type washing and drying machine , wherein at least the lower end of the drying device through which the circulating air after passing through the dehumidifying duct flows is disposed at a position lower than the highest portion of the outer tub in the vertical direction. .

Images