JP2017012871A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable easy cleaning of a foreign object such as lint adhered to a duct for connecting an exhaust port of a water tub and a filter device, and to improve drying efficiency and a sanitary aspect.SOLUTION: A washing and drying machine includes: an outer case; a water tub provided in the outer case and having an exhaust port and an air supply port; a rotary tub rotatably provided in the water tub; a drain valve for draining the water in the water tub to the outside of the water tub; hot air supply means for generating hot air for drying clothing, and for supplying the hot air to the water tub from the air supply port; a filter device provided outside the water tub and for collecting a foreign object contained in the air exhausted to the outside of the water tub from the exhaust port; an exhaust air duct for connecting the exhaust port and the filter device; a water supply valve connected to an outside water source; and a water discharge part formed in a shape in which a tip part is flat, and for discharging so that the water hits the inside of the exhaust air duct by receiving the water supply from the water supply valve by the water supply valve being opened.SELECTED DRAWING: Figure 5

Description

  Embodiments described herein relate generally to a washing dryer.

2. Description of the Related Art Conventionally, in a washing / drying machine having a drying function, a filter device that collects a so-called lint such as lint coming out of clothes due to drying is provided at the tip of an exhaust port of a water tank.
In this case, since air containing a large amount of lint before the lint is collected by the filter device passes through the duct connecting the filter device and the exhaust port of the water tank, the lint tends to adhere to the inside of the duct. If the lint is left in the duct, the drying efficiency is lowered and sanitary effects are adversely affected. Therefore, the user needs to clean the inside of the duct and remove foreign matters such as lint adhering to the inside of the duct.
However, the duct is often provided at a location where the inside of the duct is difficult to visually recognize from the outside of the washing machine, and is difficult to clean.

JP 2006-187449 A

  Therefore, a washing and drying machine is provided that can easily clean foreign matters such as lint attached in a duct connecting the exhaust port of a water tank and a filter device, and thus improves drying efficiency and hygiene.

  The washing and drying machine of the present embodiment includes an outer box, a water tank provided in the outer box and having an exhaust port and an air supply port, a rotary tank provided rotatably in the water tank, and water in the water tank. A drain valve for draining the water outside the water tank, hot air supply means for generating warm air for drying clothes and supplying the warm air into the water tank from the air supply port, and provided outside the water tank. A filter device for collecting foreign matter contained in the air discharged from the exhaust port to the outside of the water tank, an exhaust duct connecting the exhaust port and the filter device, a water supply valve connected to an external water source, and a tip And a water discharge part that receives water supplied from the water supply valve and discharges the water so as to hit the inside of the exhaust duct when the water supply valve is opened.

FIG. 2 is a longitudinal side view showing the schematic configuration of the washing / drying machine according to the first embodiment, partially broken. Perspective view showing the appearance of the washing and drying machine Longitudinal rear view showing the schematic configuration of the washing dryer partially broken The top view which shows an outline structure of a washing dryer except an outer box Longitudinal side view of the exhaust duct and filter device The figure which expands a water discharge nozzle and shows from the front Flowchart showing control contents related to washing and drying operation FIG. 5 equivalent diagram according to the second embodiment Longitudinal side view of the schematic configuration of the washing / drying machine according to the third embodiment, partially broken away

  Hereinafter, refrigerators according to a plurality of embodiments will be described with reference to the drawings. In addition, in each embodiment, the same code | symbol is attached | subjected to the substantially same component and description is abbreviate | omitted.

(First embodiment)
First, a first embodiment will be described with reference to FIGS.
As shown in FIG. 1, the washing / drying machine 10 includes an outer box 11, a water tank 12, a rotating tank 13, a motor 14, and a door 15. In the present embodiment, the door 15 side with respect to the outer box 11 is the front side of the washing / drying machine 10. The washing / drying machine 10 is a so-called drum-type washing / drying machine having a heat pump-type drying function, in which the rotation axis of the rotary tank 13 is inclined with respect to the ground. The outer box 11 is formed in a substantially rectangular box shape by a steel plate or the like. The water tank 12 is housed inside the outer box 11. The rotary tank 13 is accommodated in the water tank 12. Both the water tank 12 and the rotating tank 13 are formed in a cylindrical shape.

  The water tank 12 has an opening 121 at one end of a cylindrical shape, and a water tank end plate 122 at the other end. The opening 121 is located above the water tank end plate 122 in the inclined water tank 12. Similarly, the rotating tank 13 has an opening 131 formed at one end of a cylindrical shape, and a rotating tank end plate 132 provided at the other end. The opening 131 is located above the rotating tank end plate 132 in the inclined rotating tank 13. The opening 131 of the rotating tank 13 is covered with the opening 121 of the water tank 12.

  The water tank 12 has an exhaust port 16 and an air supply port 17. The exhaust port 16 is located in the upper front portion of the peripheral wall that forms the cylindrical portion of the water tank 12, and is located in the left-right direction from the center in the left-right direction of the water tank 12, that is, from the top of the cylindrical outer peripheral surface of the water tank 12. Is provided. In the case of this embodiment, the exhaust port 16 is provided in the position away from the topmost part of the water tank 12 in the right direction when viewed from the front surface of the washing / drying machine 10 and opens upward. The air supply port 17 is in the water tank end plate 122 and is provided at a portion slightly above the center of the water tank end plate 122. The exhaust port 16 and the air supply port 17 communicate the inside and the outside of the water tank 12.

  Moreover, the water tank 12 has the drainage part 18 in the rear-end side of the bottom part located under the gravity direction. The drainage part 18 is located below the exhaust port 16 and the air supply port 17. The drainage unit 18 drains the water in the water tank 12 to the outside of the water tank 12 and further to the outside of the machine. Specifically, the drainage unit 18 includes a drainage port 123, a drainage valve 19, and a drainage hose 20. The drainage port 123 is formed on the rear end side of the bottom of the water tank 12 and communicates the inside and the outside of the water tank 12. The drain valve 19 is outside the water tank 12 and is connected to the drain port 123. The drain hose 20 has one end connected to the drain valve 19 and the end opposite to the drain valve 19 connected to the outside. The drain valve 19 intermittently drains water from the water tank 12. Thereby, the water in the water tank 12 is discharged from the drain outlet 123 to the outside of the washing / drying machine 10 via the drain valve 19 and the drain hose 20.

  The rotary tank 13 has a plurality of holes 21 and a plurality of communication ports 22. The hole 21 and the communication port 22 communicate the inside and the outside of the rotary tank 13. The hole 21 is formed in the whole area of the peripheral wall which comprises the cylindrical cylindrical part of the rotating tank 13. As shown in FIG. The communication port 22 is formed in the entire area of the rotary tank end plate 132. The hole 21 and the communication port 22 mainly function as a water passage through which water enters and exits during a washing operation and a dehydration operation, and function as a ventilation hole through which air enters and exits during a drying operation. In FIG. 1, only a part of the plurality of holes 21 and the communication ports 22 is shown for simplicity. Further, although not shown in detail, the rotating tub 13 is provided with a plurality of baffles inside the cylindrical portion. The baffle stirs the laundry stored inside the rotating tub 13.

  The motor 14 is provided on the water tank end plate 122 outside the water tank 12. The motor 14 is, for example, an outer rotor type direct drive motor. The shaft portion 141 of the motor 14 passes through the water tank end plate 122 and protrudes to the inside of the water tank 12, and is fixed to the center portion of the rotary tank end plate 132. Thereby, the motor 14 rotates the rotation tank 13 relatively with respect to the water tank 12. In this case, the shaft portion 141, the rotation axis of the rotating tub 13, and the central axis of the water tub 12 coincide with each other.

  The door 15 is provided on the outer surface side of the outer box 11 via a hinge (not shown). The door 15 rotates about a hinge as a fulcrum, and opens and closes an opening (not shown) formed on the front surface of the outer box 11. The opening formed in the outer box 11 is connected to the opening 121 of the water tank 12 by a bellows 112. Laundry such as clothes is put into and out of the rotating tub 13 through the openings 121 and 131 with the door 15 opened.

  The washing / drying machine 10 includes a control device (not shown), a door opening / closing detector 151 shown in FIG. 1, an operation panel 23 shown in FIGS. 1 and 2, and a water supply device 24 shown in FIGS. Although not shown in detail, the control device is constituted by a microcomputer or the like, and controls the overall operation of the washing / drying machine 10. The door open / close detector 151 includes, for example, a magnetic sensor or a mechanical switch, and is connected to a control device. The control device detects whether the door 15 is opened or closed based on a signal from the door opening / closing detector 151. The operation panel 23 is provided on the front side of the outer box 11 and above the door 15. The operation panel 23 is connected to a control device, and a driving course or the like is selected by a user operation.

  In addition, the control device controls the water supply device 24 to supply water to the water tank 12 and controls the opening and closing of the drain valve 19 to drain the water in the water tank 12. As shown in FIGS. 3 and 4, the water supply device 24 is provided in the left-right direction center from the center of the water tank 12, that is, from the top of the outer peripheral surface of the cylinder of the water tank 12. In the case of the present embodiment, the water supply device 24 is provided at a position away from the top of the rotating tub 13 in the left direction when viewed from the front side of the washing / drying machine 10.

  The water supply device 24 includes a water supply valve 25, a water injection case 26, and the like. The water supply valve 25 is a three-way valve having one input unit 251 and two output units, in this case, a first output unit 252 and a second output unit 253, and is an electromagnetic valve that is driven to open and close based on control of a control device It consists of In the closed state of the water supply valve 25, the input unit 251, the first output unit 252, and the second output unit 253 are not in communication with each other. On the other hand, when receiving control from the control device, the water supply valve 25 selectively connects the input unit 251 and the first output unit 252 or the input unit 251 and the second output unit 253.

  The input unit 251 of the water supply valve 25 is connected to an external water source such as a water tap through a water supply hose 27 shown in FIG. The first output part 252 of the water supply valve 25 is connected to the water injection case 26. The water injection case 26 is configured in a container shape having a detergent charging part 261 shown in FIG. 2 and an inlet part and an outlet part (not shown). In this case, the inlet portion of the water injection case 26 is connected to the first output portion 252 of the water supply valve 25, and the outlet portion is connected to the water tank 12. The user throws the detergent into the water injection case 26 from the detergent throwing part 261. Water from an external water source is supplied to the water injection case 26 via the water supply hose 27 and the water supply valve 25, and the detergent in the water injection case 26 is dissolved and injected into the water tank 12.

  As shown in FIGS. 1 and 3, the washing / drying machine 10 includes a circulation air passage 30. The circulation air passage 30 connects the exhaust port 16 and the air supply port 17 outside the water tank 12. The circulation air passage 30 exhausts air in the water tank 12 from the exhaust port 16, and supplies warm air from the air supply port 17 into the water tank 12. Specifically, the circulation air passage 30 includes a heat exchange unit 40, a filter device 50, and an air supply duct 31, a connection duct 32, and an exhaust duct 33 that connect them. In this case, the air supply duct 31, the connection duct 32, and the exhaust duct 33 each constitute a part of the circulation air passage 30.

  The heat exchanging unit 40 is provided in the lower part on the inner side of the outer box 11, and is provided below the water tank 12 and the rotating tank 13. The heat exchanging unit 40 generates dry hot air by dehumidifying and heating the air passing through the inside. As shown in FIG. 3, the heat exchange unit 40 includes an evaporator 41 and a condenser 42 inside. The evaporator 41 is provided on the upstream side of the condenser 42 with respect to the air flow in the heat exchange unit 40 during the drying operation. The evaporator 41 and the condenser 42 constitute a heat pump mechanism, that is, a refrigeration cycle together with the compressor 44 provided outside the heat exchange unit 40. The air passing through the heat exchange unit 40 is cooled by the evaporator 41 and dehumidified thereby. The air dehumidified by the evaporator 41 is then heated by the condenser 42 to become hot air.

  The downstream side of the heat exchange unit 40 is connected to the air supply port 17 of the water tank 12 by the air supply duct 31. A circulation fan 43 is provided at a connection portion between the heat exchange unit 40 and the air supply duct 31. The circulation fan 43 is composed of, for example, a sirocco fan. The circulation fan 43 sucks the air in the heat exchange unit 40 and discharges it to the air supply duct 31 side. Thereby, the warm air dehumidified and heated by the heat exchanging unit 40 is supplied from the air supply port 17 into the water tank 12 and further into the rotary tank 13 by the air blowing action of the circulation fan 43. For this reason, the heat exchanging unit 40 and the circulation fan 43 function as hot air supply means that generates hot air for drying clothes in the rotating tub 13 and supplies the hot air from the air supply port 17 into the water tank 12. .

  As shown in FIG. 3, the upstream side of the heat exchanging unit 40 is connected to the filter device 50 via the connection duct 32. As shown in FIGS. 1 and 4, the filter device 50 is provided on the inner upper portion of the outer box 11, above the water tank 12 and the rotary tank 13, in this case, slightly above the exhaust port 16. . The upstream side of the filter device 50 is connected to the exhaust port 16 of the water tank 12 via the exhaust duct 33. In this case, when the air flow in the circulation air passage 30 is viewed, the exhaust port 16 is on the most upstream side, and the air supply port 17 is on the most downstream side.

  As shown in FIG. 1, the exhaust duct 33 extends obliquely from the exhaust port 16 toward the upper rear side, and then extends horizontally toward the filter device 50 side. As shown in FIGS. 1 and 5, the exhaust duct 33 has a bellows portion 331 at a portion extending obliquely upward from the exhaust port 16. The exhaust duct 33 exhibits flexibility by the bellows portion 331. The bellows portion 331 absorbs vibration generated in the water tank 12 and suppresses transmission of vibration to the filter device 50.

  As illustrated in FIG. 5, the filter device 50 includes a filter case 51, a non-fixed filter 52, and a fixed filter 53. The filter case 51 is formed in a container shape whose upper side is open. The upper opening of the filter case 51 communicates with the outside of the outer box 11. As shown in FIGS. 1, 2, and 3, the outer box 11 is provided with a hinged lid 111. The lid 111 opens and closes the upper opening of the filter case 51.

  As shown in FIG. 5, the filter case 51 is made of synthetic resin or the like, and integrally includes an inlet portion 511 and an outlet portion 512. The inlet 511 is provided on the front side of the filter case 51, that is, on the exhaust port 16 side. The inlet portion 511 is formed in a cylindrical shape and protrudes forward from the front portion of the filter case 51. An exhaust duct 33 is connected to the inlet portion 511. In this case, the inner diameter of the exhaust duct 33 is configured to be larger than the outer shape of the inlet portion 511 and is inclined downward toward the exhaust duct 33 side. The exhaust duct 33 is fitted on the outside of the inlet portion 511 in the radial direction. The outlet 512 is provided on the rear side of the filter case 51, that is, on the side opposite to the exhaust port 16. The outlet portion 512 is formed in a cylindrical shape and is provided so as to protrude downward from the lower surface of the rear portion of the filter case 51. The outlet part 512 is connected to the connection duct 32.

  The non-fixed filter 52 is configured to be removable from the filter case 51. The non-fixed filter 52 is taken out from the filter case 51 with the lid 111 opened. Although not shown in detail, the non-fixed filter 52 is formed in a substantially rectangular box shape having an opening on the inlet portion 511 side, and has a mesh-like filter on the outlet portion 512 side. The air taken into the filter case 51 from the inlet 511 passes through the inside of the non-fixed filter 52 from the opening of the non-fixed filter 52. Then, foreign matters such as lint contained in the passing air are collected by the filter on the outlet portion 512 side.

  The fixed filter 53 is fixed inside the filter case 51. The fixed filter 53 is provided on the outlet portion 512 side and covers the entire outlet portion 512. Although not shown in detail, the fixed filter 53 is configured by attaching a mesh filter to a rectangular frame. The fixed filter 53 is provided on the downstream side of the non-fixed filter 52, that is, on the outlet portion 512 side with respect to the air flow during the drying operation. The mesh of the fixed filter 53 is smaller than that of the non-fixed filter 52. For this reason, the non-fixed filter 52 collects relatively large lint, and the fixed filter 53 collects relatively small lint that has passed through the non-fixed filter 52.

  Moreover, the filter apparatus 50 has the water discharge nozzle 54 as a water discharge part. The water discharge nozzle 54 is provided inside the inlet 511. The water discharge nozzle 54 is formed of, for example, a metal pipe, and is formed in a shape such that its tip is crushed from the left and right and flattened in the vertical direction, as shown in FIG. In this case, the water discharge nozzle 54 is formed with two enlarged portions 541 at the upper and lower portions and a reduced portion 542 between the enlarged portions 541. And as shown in FIG. 5, the front-end | tip part of the water discharge nozzle 54 is opened toward the exhaust duct 33 side, ie, the exhaust port 16 side. On the other hand, the proximal end portion of the water discharge nozzle 54 passes through the peripheral wall of the inlet portion 511 and is exposed outside the upper side of the filter case 51. And the base end part of the water discharge nozzle 54 is connected to the 2nd output part 253 of the water supply valve 25 via the connection hose 55, as shown in FIG.

  The control device of the washing / drying machine 10 performs a duct cleaning process in which foreign matter such as lint attached to the inside of the exhaust duct 33 is washed away by opening the drain valve 19 and opening the second output portion 253 of the water supply valve 25. . That is, the water discharge nozzle 54 discharges water toward the exhaust duct 33 side, that is, the exhaust port 16 side, when the second output portion 253 of the water supply valve 25 is opened. At this time, since the tip of the water discharge nozzle 54 is flattened so as to expand in the vertical direction and has two enlarged portions 541 in the upper and lower portions, the water is discharged separately from the two enlarged portions 541 in the vertical direction. For this reason, the water discharged from the water discharge nozzle 54 spreads in the vertical direction while being jetted forward, and reaches the entire inside of the exhaust duct 33 evenly. Further, the water droplets dripping from the water discharge nozzle 54 do not flow into the outlet portion 512 side because the inlet portion 511 is inclined downward toward the exhaust duct 33 side.

  The water discharged from the water discharge nozzle 54 flows down from the exhaust port 16 into the water tank 12 together with the lint 100 while washing the lint 100 adhering to the inner surface of the exhaust duct 33, and then travels along the outer peripheral surface of the rotary tank 13. And flow down to the bottom of the water tank 12. In this case, the exhaust port 16 is provided at a position shifted in the left-right direction from the topmost portion that is the center in the left-right direction of the rotary tank 13. Therefore, the water that has flowed down from the exhaust port 16 is more likely to flow downward along the outer surface of the rotary tank 13 as compared with the case where the exhaust port 16 is at the top of the rotary tank 13. Therefore, most of the water that has flowed down from the exhaust port 16 flows down from the hole 21 of the rotating tub 13 to the bottom of the water tub 12 without entering the rotating tub 13. Thereafter, the water that has flowed down to the bottom of the water tank 12 is discharged from the drainage unit 18 through the drainage valve 19 and the drainage hose 20 together with the washed lint to the outside of the washing / drying machine 10.

  The control device performs the duct cleaning process after the drying process based on the supply of warm air into the water tank 12 by the heat exchange unit 40 and the circulation fan 43 is completed. For example, when the user selects the washing / drying operation in which the washing process and the drying process are performed, the control device executes a series of controls shown in FIG. That is, the control device first executes a washing process of washing, rinsing and dehydrating in step S11. In the washing process, it is necessary to inject water into the water tank 12 by opening the first output part 252 of the water supply valve 25, to rotate the rotary tank 13 by the motor 14, and to drain the water in the water tank 12 by opening and closing the drain valve 19. It is executed according to.

  After the washing process, a drying process is executed in step S12. In the drying process, with the drain valve 19 closed, the heat exchanger 40 and the circulation fan 43 are driven to supply hot air for drying into the water tank 12 and the rotary tank 13 and the rotary tank 13 is driven to rotate. Thus, the clothes in the rotating tub 13 are dried.

  After the drying process, when the control device detects that the door 15 is opened / closed after the drying process is completed by the door opening / closing detector 151 in step S13, the control apparatus determines that the clothes in the rotating tub 13 have been taken out by the user. And it transfers to step S14, and the drain valve 19 is opened, and the opening of the water supply valve 25 is switched to the second output part 253 side. Thereby, it discharges from the water discharge nozzle 54 and performs a duct washing | cleaning process. This duct cleaning process is performed for a predetermined time, for example, about several minutes. Then, after closing the water supply valve 25, the power of the washing / drying machine 10 is turned off and the operation is finished.

  According to this, the washing / drying machine 10 includes the water discharge nozzle 54 for discharging water into the exhaust duct 33. Then, the control device discharges water from the discharge nozzle 54 into the exhaust duct 33 by opening the second output portion 253 side of the water supply valve 25 with the drain valve 19 opened. Thereby, even if the exhaust duct 33 that connects the exhaust port 16 of the water tank 12 and the filter device 50 is provided at a place where it is difficult to visually recognize the inside of the exhaust duct 33 from the outside of the washing / drying machine 10, Foreign matter such as lint adhering to the inside of the exhaust duct 33 due to water discharge from the nozzle 54 can be easily cleaned, and as a result, drying efficiency and hygiene can be improved.

  Further, the washing / drying machine 10 includes a circulation air passage 30 that circulates the air in the water tank 12 by warming it. The water discharge nozzle 54 discharges water into the exhaust duct 33 constituting a part of the circulation air passage 30 and cleans it. According to this, the amount of air supplied to the water tank 12 again through the exhaust duct 33 can be maintained to suppress a decrease in drying efficiency, and the air can be kept hygienic.

  Further, the water discharge nozzle 54 discharges water from the filter device 50 toward the exhaust port 16 of the water tank 12. According to this, the lint washed away by the water discharge from the water discharge nozzle 54 flows down into the water tank 12 from the exhaust port 16, and then passes through the drain valve 19 and the drain hose 20 of the drainage section 18 to the outside of the washing dryer 10. Is discharged. In this case, the waste water containing the lint washed away from the exhaust duct 33 is directly discharged from the drainage section 18 to the outside of the washing dryer 10 without passing through other filters. This eliminates the need for the user to clean the filter that collects the lint washed away from the exhaust duct 33, thereby improving convenience.

  Further, the water discharge nozzle 54 discharges water toward the side opposite to the filter device 50. For this reason, it can avoid that the filters 52 and 53 in the filter apparatus 50 get wet as much as possible. Furthermore, since the inlet portion 511 is inclined downward toward the exhaust duct 33, the water discharged from the water discharge nozzle 54 flows into the heat exchanging portion 40 side through the water supply device 24, and the circulation fan 43 and the heat exchanging portion. It is possible to avoid wetting 40 as much as possible.

  The water supply valve 25 has a first output portion 252 side connected to the water injection case 26, and a second output portion 253 side connected to the water discharge nozzle 54 via a connection hose 55. The water supply valve 25 receives control from the control device and switches between opening the first output unit 252 and the second output unit 253, thereby supplying water to the water injection case 26 and supplying water to the water discharge nozzle 54. And switch. According to this, water discharge from the water discharge nozzle 54 can be automated, and the exhaust duct 33 can be further easily cleaned.

And a control apparatus performs the duct washing | cleaning process which discharges water from the water discharge nozzle 54 and wash | cleans the exhaust duct 33 after execution of a drying process. According to this, since the inside of the exhaust duct 33 is washed after the drying process in which the lint easily adheres to the inside of the exhaust duct 33, the inside of the exhaust duct 33 can be maintained in a sanitary state. Further improvement is achieved.
In addition, the heat exchange part 40 is not restricted to a heat pump system, A heater system may be sufficient.
Moreover, you may provide the filter which collects the lint washed away from the exhaust duct 33. FIG.

(Second embodiment)
Next, a second embodiment will be described with reference to FIG.
In the second embodiment, the exhaust duct 33 has a spiral portion 332 instead of the bellows portion 331 of the first embodiment. The spiral portion 332 is formed in a single spiral along the peripheral wall of the exhaust duct 33. The exhaust duct 33 exhibits flexibility by the spiral portion 332. A spiral groove 333 is formed on the inner surface of the exhaust duct 33 by a spiral portion 332. The groove 333 is formed in a single groove connected from the base end portion on the filter device 50 side to the terminal end portion of the exhaust port 16. In FIG. 8, the part formed in the back | inner side with respect to the paper surface of FIG. 8 among the groove | channel 333 is shown as a continuous line, and the part formed in the near side with respect to the paper surface of FIG. 8 is shown with the dashed-two dotted line. . In this case, the groove 333 is inclined downward from the base end side to the terminal end side of the groove 333 in both portions indicated by a solid line and a two-dot chain line.

In this configuration, when the water is discharged from the water discharge nozzle 54 and the duct cleaning process is executed, the water flows to the exhaust port 16 side through the spiral groove 333 while washing the lint 100 in the exhaust duct 33. Then, it flows down from the exhaust port 16 into the water tank 12 and is discharged from the drainage part 18 through the drainage valve 19 and the drainage hose 20 to the outside of the washing / drying machine 10. According to this, since water becomes easier to flow inside the exhaust duct 33, the cleaning performance by water discharge from the water discharge nozzle 54 is improved. Moreover, compared with the case where it has the bellows part 331, it is prevented that water accumulates in a bellows-like clearance gap, and the inside of the exhaust duct 33 can be kept in a more hygienic state.
The spiral portion 332 is not limited to a single spiral, and may be a multiple spiral.

(Third embodiment)
Next, a third embodiment will be described with reference to FIG.
The washing and drying machine 60 of the third embodiment is a vertical axis type washing and drying machine, has a heater-type drying function, and does not have a configuration corresponding to the circulation air passage 30 of the first embodiment. Thus, it is greatly different from the first embodiment.
Specifically, the washing / drying machine 60 includes an outer box 61, a water tank 62, a rotating tank 63, a pulsator 64, and a motor 65. The washing / drying machine 60 according to the third embodiment is a vertical washing machine in which the axis direction of the rotation axis of the rotating tub 63 is parallel to the weight direction.

  The outer box 61 is configured in a rectangular box shape using a steel plate or the like. A top cover 611 is provided on the upper side of the outer box 61. The water tank 62 is configured in a cylindrical shape having a bottom, and is provided in a non-rotatable manner inside the outer box 61 by a vibration isolator (not shown). The water tank 62 has an inner lid 68 that opens and closes an upper opening at the top thereof. The water tank 62 has an air supply port 66 and an exhaust port 67. The air supply port 66 is provided on the upper surface of the water tank 62. The exhaust port 67 is provided in the lower peripheral wall of the water tank 62.

  An exhaust duct 69 is connected to the exhaust port 67. The exhaust duct 69 extends upward along the peripheral wall of the water tank 12, and then opens in the horizontal direction along the upper surface of the water tank 12. A filter device 70 is provided at the opening at the tip of the exhaust duct 69. As a result, the exhaust duct 69 opens to the outside of the water tank 12 through the filter device 70 on the side opposite to the exhaust port 67.

The rotating tank 63 is configured in a cylindrical shape having a bottom portion, and is rotatably provided inside the water tank 62. The rotating tub 63 has a large number of holes 631 communicating with the peripheral wall toward the water tub 62 side. Water and air in the rotating tub 63 flow out to the water tank 62 side through the holes 631.
The pulsator 64 is rotatably provided on the inner bottom portion of the rotating tank 63. The motor 65 is provided outside the bottom of the water tank 62. The motor 65 is connected to the rotating tub 63 and the pulsator 64 via a clutch (not shown). The motor 65 switches the clutch to rotate only the pulsator 64 or the rotary tank 63 and the pulsator 64.

  The washing / drying machine 60 includes an operation panel 71, a blower fan 72, and a heater device 73. The operation panel 71 is provided at the front portion of the top cover 611 and is connected to a control device (not shown). The blower fan 72 and the heater device 73 are provided inside the top cover 611 and provided at the upper rear part of the water tank 12 and the rotary tank 13. The blower fan 72 is provided on the upstream side of the heater device 73. The downstream side of the heater device 73 is connected to an air supply port 66 of the water tank 12 through an air supply duct 74.

  The blower fan 72 and the heater device 73 function as hot air supply means. That is, when the heater device 73 and the blower fan 72 are driven, the air outside the washing and drying machine 60 is blown to the heater device 73 by the blowing action of the blower fan 72. The air is heated by the heater device 73 and supplied from the air supply duct 74 to the water tank 62 and the rotating tank 63 through the air supply port 66. Then, the clothes in the rotating tub 63 are dried by the supplied hot air. Thereafter, the air containing the moisture of the clothes passes through the exhaust duct 69 from the exhaust port 67 and further passes through the filter device 70 and is discharged out of the water tank 62. Thereafter, the air discharged to the outside of the water tank 62 is discharged from the gap of the outer box 61 to the outside of the outer box 61.

  The washing / drying machine 60 includes a drainage unit 75. The drainage part 75 is provided at the bottom of the water tank 62. The drainage part 75 is comprised from the drainage port 621 formed in the water tank 12, the drainage valve 76, and the drainage hose 77 similarly to the drainage part 18 of 1st embodiment. A control device (not shown) drains water in the water tank 62 from the drainage part 75 by opening and closing the drain valve 76.

  The washing / drying machine 60 includes a water supply device 78 and a water discharge nozzle 81. The water supply device 78 includes a water supply valve 79, a water injection case 80, and the like, like the water supply device 24 of the first embodiment. The water supply device 78 is provided in the upper rear portion of the water tank 62 and the rotary tank 63 inside the outer box 11 and on the opposite side of the blower fan 72 and the heater device 73 in the left-right direction. The water supply valve 79 is configured in the same manner as the water supply valve 25 of the first embodiment, and has an input part 791, a first output part 792, and a second output part 793. The input unit 791 is connected to an external water source such as a water tap through a water supply hose (not shown). The first output unit 792 is connected to the water injection case 80, and the second output unit 793 is connected to the water discharge nozzle 81.

  The water discharge nozzle 81 is configured in substantially the same manner as the water discharge nozzle 54 of the first embodiment. In the exhaust duct 69, the water discharge nozzle 81 is provided between the exhaust port 67 and the filter device 70, in particular, close to the filter device 70. In this case, the water discharge nozzle 81 is provided at the uppermost part of the exhaust duct 69. And the front-end | tip part of the water discharge nozzle 81 is opened toward the downward direction, and the base end part is connected to the 2nd output part 793 of the water supply valve 79 via the connection hose 82. FIG.

  As in the first embodiment, a control device (not shown) discharges water from the discharge nozzle 81 by opening the drain valve 76 and opening the second output portion 793 side of the water supply valve 79 in the duct cleaning process. Accordingly, the water discharged from the water discharge nozzle 81 into the exhaust duct 69 ishes away the lint 100 attached to the inside of the exhaust duct 69. Then, along with the washed lint 100, the water is discharged from the drain port 621 of the drainage part 75 through the drainage valve 76 and the drainage hose 77 to the outside of the washing and drying machine 60.

  According to this, even in a configuration that does not include the circulation air passage 30, the same effect as that of the first embodiment can be obtained. That is, even when the exhaust duct 69 that connects the exhaust port 67 of the water tank 62 and the filter device 70 is provided at a location where it is difficult to visually recognize the inside of the exhaust duct 69 from the outside of the washing / drying machine 60, The lint adhering to the inside of the exhaust duct 69 can be easily cleaned by discharging water from 81, and as a result, the drying efficiency and hygiene can be improved.

  According to the configuration of the embodiment described above, the washing / drying machine includes the water discharge unit that discharges water into the exhaust duct and the water supply valve that is connected to an external water source and supplies water to the water discharge unit. And a water discharge part discharges water by opening a water supply valve in the state where the drain valve was opened, and the inside of an exhaust duct is washed by this. And the water discharged from the water discharge part is discharged | emitted from a drainage part with foreign materials, such as a lint. According to this, even if the exhaust duct connecting the exhaust port of the water tank and the filter device is provided in a place where it is difficult to visually recognize the inside of the exhaust duct from the outside of the washing / drying machine, the water discharge from the water discharge unit As a result, lint adhering to the inside of the exhaust duct can be easily cleaned, and as a result, drying efficiency and hygiene can be improved.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and equivalents thereof.

  In the drawing, 10 and 60 are washing / drying machines, 11 and 61 are outer boxes, 12 and 62 are water tanks, 13 and 63 are rotating tanks, 16 and 66 are exhaust ports, 17 and 67 are air supply ports, and 19 and 76 are Drain valves, 25 and 79 are water supply valves, 26 and 80 are water injection cases, 30 is a circulation air passage, 33 and 69 are exhaust ducts, 333 is a spiral groove, 40 is a heat exchange section (hot air supply means), 43 Is a circulation fan (hot air supply means), 50 and 70 are filter devices, 54 is a water discharge nozzle (water discharge portion), 72 is a blower fan (hot air supply means), and 73 is a heater device (hot air supply means).

Claims (6)

An outer box,
A water tank provided in the outer box and having an exhaust port and an air supply port;
A rotating tank provided rotatably in the water tank;
A drain valve for draining the water in the aquarium out of the aquarium,
Hot air supply means for generating hot air for drying clothes and supplying the hot air into the water tank from the air supply port;
A filter device for collecting foreign matter contained in the air provided outside the water tank and discharged from the exhaust port to the outside of the water tank;
An exhaust duct connecting the exhaust port and the filter device;
A water supply valve connected to an external water source;
A water discharge part that is formed in a flat shape at the tip, and receives water supplied from the water supply valve by opening the water supply valve, and discharges water so as to hit the inside of the exhaust duct;
With
Washing and drying machine. The tip of the water discharge part is flat so as to expand toward the outside in the width direction of the exhaust duct,
The washing / drying machine according to claim 1. An outer box,
A water tank provided in the outer box and having an exhaust port and an air supply port;
A rotating tank provided rotatably in the water tank;
A drain valve for draining the water in the aquarium out of the aquarium,
Hot air supply means for generating hot air for drying clothes and supplying the hot air into the water tank from the air supply port;
A filter device for collecting foreign matter contained in the air provided outside the water tank and discharged from the exhaust port to the outside of the water tank;
An exhaust duct that extends upward from the exhaust port and then bends and extends to the filter device side to connect the exhaust port and the filter device;
A water supply valve connected to an external water source;
A water discharge part that receives water supplied from the water supply valve by opening the water supply valve and discharges the water so as to hit the bent part of the exhaust duct inside the exhaust duct;
Equipped with a washer-dryer. An outer box,
A water tank provided in the outer box and having an exhaust port and an air supply port;
A rotating tank provided rotatably in the water tank;
A drain valve for draining the water in the aquarium out of the aquarium,
Hot air supply means for generating hot air for drying clothes and supplying the hot air into the water tank from the air supply port;
A filter device for collecting foreign matter contained in the air provided outside the water tank and discharged from the exhaust port to the outside of the water tank;
An exhaust duct connecting the exhaust port and the filter device;
A water supply valve connected to an external water source;
A water discharge unit that receives water supplied from the water supply valve by opening the water supply valve and discharges the water from the filter device side toward the exhaust port side so as to hit the inside of the exhaust duct;
A control device capable of opening and closing the drain valve and the water supply valve;
With
The control device is capable of performing a duct cleaning step of cleaning the exhaust duct by opening the water supply valve and discharging water from the water discharge unit.
Washing and drying machine. The control device opens the drain valve in the duct cleaning process,
The water discharged from the water discharge section during the duct cleaning step flows down from the exhaust port to the bottom of the water tank and is discharged to the outside through the drain valve.
The washing / drying machine according to claim 4. The control device, after executing the duct cleaning process for a predetermined time, closes the water supply valve and turns off the power to finish the operation.
The washing / drying machine according to claim 4 or 5.

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