JP3863167B1 - Dry washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate lint and cotton dust around a blower fan by a filter, and to remove a washing machine which does not cause blockage of a washing water flow path or a drying path, and dust entangled with a blower fan, etc. To provide a dry washing machine that can be removed.
A blade 170 for removing foreign matter such as lint of the filter 160 by rotation of a rotary drum 5 is provided opposite to a filter 160 provided at a suction port to a blower. Further, the operation speed of the blade 170 is changed by controlling the rotation speed of the rotation drum 5, and the rotation drum 5 is rotated at the rotation speed for removing foreign matters of the filter 160 during the washing course.
[Selection] Figure 2

Description

  The present invention relates to a drying washing machine such as a drum-type drying washing machine or a fully automatic washing machine.

  Conventionally, there is a drum-type drying washing machine as a drying washing machine. 15 and 16 are schematic sectional views of a conventional drum-type drying washing machine. As shown in FIG. 15, the drum-type drying washing machine includes an outer box 1, a water tank 4 disposed in the outer box 1, and a rotating drum 5 that is disposed in the water tank 4 and stores laundry. A transparent non-flexible outer door 3, an automatic door opening / closing mechanism 10 for automatically opening and closing the outer door 3, and a drying unit 24 for drying the laundry are provided.

  An outer box opening 1 a is formed on the front surface of the outer box 1. The laundry is taken in and out through the outer box opening 1a. The outer box opening 1a is opened and closed by the external door 3 that is slidable in the vertical direction with respect to the outer box 1 as described above. In addition to the slidable one, the external door 3 is also known to be pivotally attached to the edge of the opening 1a by a hinge mechanism or the like. Further, the operation panel 11 having operation keys and a display unit is provided on the front upper portion of the outer box 1. A control unit 2 that controls the operation of the drum-type washing and washing machine is provided on the back side of the operation panel 11 (water tank 4 side). A process is performed continuously or each process is performed independently. The outer box 1 elastically supports the water tank 4 with a suspension 8 as an example of elastic support means.

  The water tank 4 has a bottomed cylindrical shape provided with a water tank opening 4a that opens facing the outer box opening 1a, and is inclined so that the rear side (bottom side of the water tank 4) is at a low position. Are placed sideways. The water tank opening 4a and the outer box opening 1a are spaced apart from each other. Further, a transparent lid 6 is attached to the water tank 4 by a hinge mechanism so that the water tank opening 4a can be freely opened and closed. The lid 6 is formed with a convex portion 6a that protrudes toward the inside of the rotating drum 5 when the water tank opening 4a is closed. A seal member 41 is disposed on the inner peripheral surface portion of the water tank opening 4a. When the water tank opening 4a is closed by the lid 6, the seal member 41 and the convex portion 6a are brought into close contact with each other. 4a is kept watertight.

  The rotating drum 5 has a bottomed cylindrical shape having a drum opening 5c that opens to face the water tank opening 4a, and the rear side (the bottom side of the rotating drum 5) is at a low position. It is inclined and placed sideways. The rotating drum 5 is connected to a motor 9 via a shaft portion 5e on the back side thereof, and rotates the rotating drum 5 according to the control of the control unit 2. A plurality of small holes 5 a are formed in the entire peripheral wall of the rotary drum 5. This small hole 5a is formed between the space between the water tank 4 and the rotating drum 5 and the space in the rotating drum 5 with washing water (water such as tap water or bath water, or water containing detergent), Allow air to circulate. A baffle 5b is provided on the inner wall surface of the rotating drum 5 so as to protrude inward in the radial direction. The baffles 5b are provided at three locations, for example, at 120 ° intervals in the circumferential direction, and the lifting and dropping of the laundry are repeated as the rotating drum 5 rotates. Further, the fluid balancer 5d surrounding the opening 5c of the rotating drum 5 from the outside causes the imbalance caused by the bias of the laundry and the washing water when the rotating drum 5 is rotated by the movement of the sealed fluid inside the fluid balancer 5d. Reduce.

  The drying unit 24 includes a blower 31 and a heating unit 32, and is provided in the upper part of the water tank 4. The positions of the blower 31 and the heating unit 32 in the drying unit 24 are the rear side of the blower 31 and the front side of the heating unit 32 in the front-rear direction of the drum-type drying washing machine. The blower 31 includes a blower blade 34 inside a casing 33, and a fan motor 35 that rotationally drives the blower blade 34 is provided outside the casing 33. The fan motor 35 is directly connected to the blower blade 34, and rotates the blower blade 34 by a direct drive structure. On the other hand, the heating unit 32 includes a heater 36 inside the heater case 26, and the inlet portion of the heater case 26 communicates with the outlet portion of the casing 33 of the blower 31.

  A drain valve 20 that is opened and closed by a drain valve motor (not shown) is installed at the bottom of the water tank 4. By opening the drain valve 20, the water in the water tank 4 is drained to the outside through the flexible drain hose 19.

  In the outer box 1, an air duct 38 is disposed on the front side of the water tank 4. One end of the air duct 38 communicates with the outlet of the heater case 26 of the heating unit 32, and the other end serves as a blowout port 38a in the water tank 4 and at the periphery of the opening 4a. The drum 5 also communicates with the opening 5c. That is, the air duct 38 and the air outlet 38a serve as means for blowing air heated toward the inside of the rotary drum 5 through the opening 5c.

  Further, a dehumidifier 27 is disposed behind the water tank 4 in the outer box 1. This dehumidifier 27 cools and condenses the moisture of the air passing through the inside by pouring water from above, and dehumidifies it. The dehumidifier 27 is hollow as a whole, and has a water inlet 27a and an air outlet 27b in the upper part, and an air inlet 27c that also serves as a water outlet in the lower part. The air outlet 27 b of the dehumidifier 27 is in communication with the inlet of the casing 33 of the blower 31, and the air inlet 27 c is in communication with the lower part in the water tank 4. A water supply device (not shown) is connected to the water inlet 27a.

  According to the drum-type drying washing machine having the above-described configuration, the user opens the lid 6 directly by hand, and then puts the laundry into the rotary drum 5 through the opening 1a and closes the lid 6 directly by hand. . Thereby, the inner peripheral edge 41a of the sealing member 41 is brought into close contact with the peripheral edge of the lid body 6, and the water tank 4 is sealed. When the user operates the operation panel 11 and starts a washing operation in response to a command from the control unit 2, first, the automatic door opening / closing mechanism 10 causes the external door 3 to follow the front plate 7 in the upward direction in the figure. Slide. Thereby, the external door 3 draws a substantially arc-shaped movement trajectory, and the opening 1 a of the outer box 1 is closed by the external door 3 as shown in FIG. 16. Thereafter, when the washing operation is completed, the external door 3 is slid downward along the front plate 7 by the automatic door opening / closing mechanism 10. Thereby, as shown in FIG. 15 again, the opening 1a of the outer box 1 is opened. The user opens the lid 6 directly by hand, and then takes out the laundry from the rotating drum 5.

  During the drying operation, the blower 31 is rotationally driven and the heater 36 is energized and heated. As a result, the air sent by the blower 31 is heated by the heater 36 while passing through the heater case 26, and the high-temperature air passes through the blower duct 38, the blowout port 38 a, and the opening 5 c inside the rotary drum 5. Air is blown toward the laundry to dry the laundry. The hot and humid air that has absorbed the moisture of the laundry in the rotating drum 5 is discharged from a small hole formed in the peripheral surface of the rotating drum 5 to a space between the rotating drum 5 and the water tub 4. The space between the rotating drum 5 and the water tank 4 communicates with the space around the dehumidifier 27 as described above, and was cooled by the cold water flowing in the dehumidifier 27 while flowing around the dehumidifier 27. By contacting the wall of the dehumidifier 27, the dew is condensed and dehumidified. The dehumidified air is sent out again into the rotary drum 5 through the heater 36 by the blower 31. In this way, the laundry in the rotary drum 5 is dried. Such a drum-type drying washing machine is disclosed in Patent Document 1, for example.

  However, according to the drum-type drying washing machine having the above-described configuration, foreign matters such as cotton dust from the laundry circulating on the air have not been removed in the drying process. For this reason, it adheres to a shaft (not shown) connecting the blower blades 34 and the fan motor 35, resulting in rotational resistance of the blower blades 34 and the shaft, resulting in a reduction in blowing capability.

As one means for preventing foreign matters contained in the circulating air in the drying process from entering the blower blades 34, filter means for collecting the foreign matters is disposed upstream of the inlet portion of the casing 33 of the blower 31. Can be considered.
Japanese Patent Laid-Open No. 2001-149689

  However, this filter means is clogged when the drying process is repeated many times, and the suction capacity of the blower 31 is reduced. It is necessary to remove the clogging of the filter means each time, but if the user neglects to check it, the clogging of the filter means will be left unattended, causing problems such as prolonged drying time due to a decrease in the air volume. .

  Accordingly, the present invention has been made in view of the above circumstances, and a filter that actively subsidizes the filter means in washing water in a washing step or a rinsing step and actively generates a water flow for removing clogging of the filter means. An object of the present invention is to provide a dry washing machine with easy maintenance.

In order to achieve the above object, the present invention provides a water tank, a rotating drum rotatably arranged in the water tank, a dehumidifying part for dehumidifying air guided from the rotating drum, and a dehumidifying part. A heating unit that heats the heated air, a blowing unit that guides the air in the rotating drum to the dehumidifying unit and blows the air heated by the heating unit into the rotating drum, the rotating drum, and the blowing So as to be immersed in the washing water supplied in the water tank during the washing process or the rinsing process, and provided in the path on the suction port side that is upstream of the air flow generated by the blower during the drying process A drying washing machine comprising filter means arranged in
A cleaning unit that removes foreign matter adhering to the filter unit by generating a water flow in the washing water based on the rotation of the rotating drum is provided, and performs control to change the rotation speed of the rotating drum in the washing step or the rinsing step. It is a dry washing machine.

  According to such a drying washing machine, the foreign matter contained in the air sucked into the blower is collected by the filter means, and the foreign matter is generated based on the rotational drive of the rotating drum in the washing process or the rinsing process. It can be removed by flowing water. Thereby, it is possible to prevent clogging of the path provided with the filter means. Further, since the rotation speed of the rotating drum is changed, the clogging removal performance of the filter means is improved by rotating the rotating drum at a rotation speed at which a water flow having high efficiency for removing clogging of the filter means is generated. it can.

  Further, it is preferable to provide a cleaning means that positively generates a water flow based on the rotational drive of the rotary drum. In this way, clogging of the filter means can be efficiently removed. Moreover, you may arrange | position so that the ventilation fan of the said ventilation part may be immersed in the said washing water. If it does in this way, even if the fine foreign material which was not able to be collected with the said filter means adheres to a ventilation fan, it can remove with washing water.

  The rotary drum rotation control means is configured to remove a foreign matter adhering mainly to the filter means and a first rotation speed for mainly washing the laundry that includes the rotary drum in the washing step or the rinsing step. It is preferable to perform the rotation control at the second rotation speed that is higher than the rotation speed. If it does in this way, the foreign material adhering to the said filter means during a washing process or a rinse process can be removed more reliably.

  In addition, it is preferable that the rotating drum is rotated at the second rotational speed when the washing water supplied into the water tank at the time of the washing process or the rinsing process is drained from the water tank by the drainage means. Since the effect of removing the clogging of the filter means due to the water flow is increased near the surface of the washing water, the above configuration allows clogging of the entire area of the filter means as the water surface decreases when the washing water is drained. Removal water flow can be applied.

  Further, when rotating at the first rotation speed, the rotation is alternately performed in the forward and reverse directions, and when switching to the forward and reverse directions, the drive control is stopped during the first interval, and the rotation at the second rotation speed is performed. Sometimes, it is possible to alternately rotate in the forward and reverse directions and stop the drive control for a second interval shorter than the first interval when switching to the forward and reverse directions. If it does in this way, the water flow of the clogging removal of the said filter means at the time of draining of washing water can be made to act on the said filter means intermittently.

  Moreover, when there exists the said wash water in the said water tank, while arrange | positioning so that the said ventilation fan may be immersed in the said wash water, it is preferable to rotate the said ventilation fan in the state immersed in the said wash water. If it does in this way, it is possible to remove the foreign material adhering to the dry path | route which is a flow path of the air which passes along this ventilation fan, the said dehumidification part, a heating part, and a ventilation part.

  Further, in the drying washing machine that guides the washing water from the water tank to the circulation path and supplies the washing water into the water tank again through a circulation pump, a circulation inlet that is an inlet from the water tank to the circulation path is the blowing fan. It is preferable to be arranged on the downstream side of the water flow by the blower fan. In this way, the water flow in the drying path changes between when the circulation pump is operating or when it is not operating, so that foreign matters adhering to the drying path can be efficiently removed.

  ADVANTAGE OF THE INVENTION According to this invention, the removal performance of the clogging of the filter means which collects the foreign material contained in the air sucked into the blower can be improved.

  Embodiments of the present invention will be described below with reference to the accompanying drawings for understanding of the present invention. In addition, the following embodiment is an example which actualized this invention, Comprising: It is not the thing of the character which limits the technical scope of this invention.

  FIG. 1 is an external perspective view of a drum-type drying washing machine X according to an embodiment of the present invention. The drum-type drying washing machine X is covered with an outer box 1 and has an outer box opening 111 (see FIG. 2), which will be described later, on its front surface, and a door for opening and closing the outer box opening 1a. 103 is rotatably attached by a hinge mechanism. Note that reference numeral 11 in FIG. 1 denotes an operation panel.

  FIG. 2 shows a schematic cross-sectional view taken along line F2-F2 in FIG.

  An outer box opening 111 is formed on the front surface of the outer box 1. The outer box opening 111 is opened and closed by the door 103 that can rotate with respect to the outer box 1 as described above. Further, the operation panel 11 having operation keys and a display unit is provided on the front upper portion of the outer box 1. A control unit 202 that controls the operation of the drum-type drying washing machine X is provided on the back side of the operation panel 11 (water tank 4 side). The drying process is carried out continuously or individually. The outer box 1 elastically supports a water tank 4 to be described later by a suspension 8 as an example of elastic support means.

  In the outer box, a bottomed cylindrical water tank 4 having a water tank opening 118 that opens to face the outer box opening 111 is disposed. The water tank 4 is disposed so as to be inclined such that the rear side of the central axis L1 passing through the center of gravity in each cross section perpendicular to the cylinder axis is lowered.

  In the water tank 4, there is disposed a bottomed cylindrical rotating drum 5 having a drum opening 126 that opens to face the water tank opening 118. The rotating drum 5 is connected to a motor 9 on the back side thereof, and is rotatably supported in the water tank 4. The rotary drum 5 is arranged so as to be inclined so that the rear side of the central axis (rotary axis) L2 is lowered. A plurality of small holes 5 a are formed in the entire peripheral wall of the rotating drum 5. The small holes 5 a circulate washing water and air between the space between the water tank 4 and the rotating drum 5 and the space in the rotating drum 5. Further, the central axis L2 of the rotating drum 5 is disposed above the central axis L1 of the water tank 4.

  A blower duct 39 through which hot air to be supplied into the rotary drum 5 flows is disposed in the lower part of the space in the water tank 4. The front end portion of the air duct 39 communicates with the air outlet 40 located between the lower edge of the water tank opening 118 and the lower edge of the opening 126 of the rotary drum 5. Accordingly, the air flowing in the direction of the arrow D <b> 1 through the air duct 39 is blown out into the rotary drum 5 through the air blowing port 40. The rear end of the air duct 39 is connected to a discharge port 158 of a fan case 134 described later.

  A heating unit 132 is disposed inside the air duct 39, and the heating unit 132 includes a heater case 37 and a sheathed heater 138 that is mostly accommodated in the heater case 37. The heater case 37 is composed of a metal main body and a heat-resistant resin frame for fixing the main body, and the front end is connected to the air duct 39. The sheathed heater 138 can heat the air in the water tub 4 and can also heat the washing water in the water tub 4 because the sheathed heater 138 is disposed in a region immersed in the washing water in the water tub 4.

  The water tank opening 118 facing the outer box opening 111 is provided on the front surface of the water tank 4. A packing 119 made of an elastic body such as rubber or soft resin is fixed to the water tank opening 118. As a result, when the door 103 is closed, the door 103 comes into close contact with the packing 119, so that the liquid in the water tank 4 can be prevented from leaking out of the water tank 4. Further, a lower end portion of a water supply duct 120 for supplying washing water into the water tank 4 is connected to the upper part of the water tank 4. Meanwhile, the upper end of the water supply duct 120 is connected to the lower part of the detergent case 14. Further, a tap water supply channel 241 and a bath water supply channel 42 are connected to the detergent case 14. A water supply valve 43 is provided in the middle of the tap water supply channel 241, while a bath water pump 44 is provided in the middle of the bath water supply channel 42.

  In the lower part of the water tank 4, there is provided a drain port 110 that communicates with the air duct 39 and drains the washing water in the water tank 4. The drain port 110 is located on the downstream side of the blower 131. The drain port 110 is connected to the upper end of a drain duct 21. On the other hand, the lower end of the drain duct 21 is connected to a drain hose 23 via a filter device 22. The liquid flowing through the drain duct 21 can flow into the drain hose 23 or the circulation hose 46 after passing through the filter device 22. Since this filter device 22 removes foreign matter such as lint in the washing water flowing through the drainage duct 21, entry of foreign matter into the drainage hose 23 or the circulation hose 46 can be prevented. Here, the drain port 110 is an example of a circulation inlet.

  The drain hose 23 is provided with a drain valve 25 that is opened and closed by a drain motor 124. The drain valve 25 is controlled to be opened when the washing water in the drain duct 21 flows to the drain hose 23 and to be closed when the washing water in the drain duct 21 flows to the circulation hose 46. The upper end of the circulation hose 46 is provided at the lower part of the front surface of the water tank 4 and is connected to a circulation nozzle 47 provided in the rotary drum 5. On the other hand, the lower end portion of the circulation hose 46 is connected to a circulation pump 45 disposed behind the filter device 22. The circulation pump 45 sucks the wash water in the drain duct 21 through the filter device 22 and discharges the sucked wash water to the circulation hose 46. By operating such a circulation pump 45, the washing water that has flowed out of the water tub 4 from the drain port 110 can be returned to the rotary drum 5 again after passing through the filter device 22. In the washing step or the rinsing step, the washing water is kept clean by removing foreign matters while circulating the washing water.

  A drying system 106 is provided at the entrance of the drain 110 for communicating with the blower duct 39 and draining the washing water in the water tank 4. The drying system 106 has a blower 131 corresponding to a conventional blower 35, a heating unit 132 corresponding to a conventional heater 36, a blower duct 39, and a heat exchanger 133 for dehumidification described later (see FIGS. 3 and 4). ing. Further, a dehumidifying path 164 between the dehumidifying heat exchanger 133 and the blower 131 is provided with a net-like filter 160 knitted with metal yarn. The blower 131, the heating unit 132, the dehumidifying heat exchanger 133, the filter 160, and the blower duct 39 each include a center line L1 of the water tank 4, and more than a plane including a horizontal axis perpendicular to the center line L1. It is provided on the lower side. Thereby, each part of the drying system 106 and members such as the filter 160 are washed by being immersed in washing water at the time of washing or rinsing. The heating unit 132 is an example of a heating unit, the dehumidifying heat exchanger 133 is a dehumidifying unit, the blower 131 is an air blowing unit, and the filter 160 is an example of a filter unit.

  FIG. 3 is a schematic cross-sectional view taken along line F3-F3 in FIG.

  The dehumidifying heat exchanger 133 is connected to the upstream side of the blower 131 attached to the lower rear portion of the water tank 4. More specifically, the dehumidifying heat exchanger 133 is disposed in an area between the inner peripheral surface of the water tank 4 and the outer peripheral surface of the rotary drum 5 that is immersed in washing water during the washing step or the rinsing step. The dehumidifying heat exchanger 133 includes a metal plate 49 that is inclined so that the front side is raised, and a stainless steel fixing member 50 attached to the end of the metal plate 49 (see FIGS. 4 and 5). And have. A cooling nozzle 51 is disposed above the front end of the metal plate 49. During the drying process, the cooling water supplied from the cooling nozzle 51 flows on the upper surface of the metal plate 49 to cool the metal plate 49. As a result, the cooling water and the metal plate 49 cool the air to effectively condense moisture contained in the air flowing therethrough.

  The blower 131 is attached to the lower rear surface of the water tank 4. The blower 131 communicates with the water tank 4 via the suction port 162 and sucks air in the water tank 4 as the blower fan 135 rotates. The suction port 162 is an example of a route on the suction port side.

  FIG. 4 is a schematic sectional view taken along line F4-F4 in FIG.

  The water tank 4 has a convex shape downward, and a blower 131 is arranged so as to overlap the convex shape. The blower 131 is configured with a fan case 134 on the outer periphery thereof, and a blower fan 135 is included therein. The fan case 134 extends in the left-right direction of the convex shape below the water tank 4, and the heating unit 132 and the dehumidifying heat exchanger 133 arranged in the convex shape, respectively, the suction port 162 and the discharge port 158. It communicates through.

  The center C1 of the water tank opening 118 is on the top surface side of the outer case 1 with respect to the center C2 of the drum opening 126. That is, the water tank opening 118 is eccentric to the top surface side of the outer case 1 with respect to the drum opening 126.

  FIG. 5 shows a schematic view of the bottom of the water tank as viewed from the front.

  Inside the convex shape below the water tank 4, a heating unit 132 is disposed on the right side, and a heat exchanger 133 for dehumidification is disposed on the left side. The heating unit 132 and the dehumidifying heat exchanger 133 are arranged so as to be parallel to the central axis L1 of the water tank 4. As will be described later, the dehumidifying heat exchanger 133 is connected to the circulating air. The heating unit 132 is provided on the upstream side and the downstream side.

  As shown in FIGS. 2 to 4, during the drying process, the air sent by the blower 131 is heated through the heating unit 132 as shown by an arrow D <b> 5 (see FIG. 2), and then the water tank opening. As shown by an arrow D1 (see FIG. 2) from 118, the air is blown into the rotary drum 5. Here, the air that has become highly humid by evaporating moisture from the wet laundry in the rotating drum 5 passes through a small hole 5a on the peripheral surface of the rotating drum 5 and is a space between the inner surface of the water tank 4 and the outer surface of the rotating drum 5. And flows along the heat exchanger 133 for dehumidification as shown by an arrow D2 (see FIG. 3). The humid air is cooled and dehumidified by the dehumidifying heat exchanger 133 and cooling water. The dehumidified air enters the blower 131 through the suction port 162 as shown by an arrow D3 (see FIG. 3), and passes from the discharge port 158 to the heating unit 132 as shown by an arrow D4 (see FIG. 4). The air that has been sent and dehumidified enters the blower 131 through the suction port 162 as shown by an arrow D3 (see FIG. 3), and from the discharge port 158 to the heating unit as shown by an arrow D4 (see FIG. 4). The drying of the laundry proceeds by repeating the circulation of being sent to 132 and heated there. In addition, in FIG. 8, the flow of the air at the time of an above-described drying process is shown typically.

  As described above, the laundry is dried by circulating the air in the water tub 4 through the dehumidifying heat exchanger 133, the blower 131, and the heating unit 132 in order during the drying process. At this time, fine dust such as cotton waste from the laundry enters the fan case 134 and adheres to the inside of the fan case 134, one end of the shaft 152, or the blower fan 135. During the rinsing process, since the inside of the fan case 134, one end of the shaft 152, or the blower fan 135 is immersed in the washing water flowing into the fan case 134, dust such as cotton waste is washed away with the washing water and removed. Is done. As a result, the air path in the fan case 134 is not narrowed, the resistance to the rotation of the blower fan 135 is not increased, and the air for drying the laundry can be circulated constantly and efficiently. .

  FIG. 6 shows a detailed view of the periphery of the filter 160 in FIG.

  A blower 131 is attached to the lower rear portion of the water tank 4. The blower 131 is connected to the water tank 4 at a discharge port 158 which is an outlet of the blower, and the discharge port 158 is connected to the blower duct 39.

  FIG. 7 shows a detailed view of the periphery of the filter 160 in FIG.

  The blower 131 includes a fan case 134, a blower fan 135 rotatably disposed in the fan case 134, a fan motor 136 that rotationally drives the blower fan 135, and one end connected to the blower fan 135. The other end portion of the shaft 152 is connected to the fan motor 136, and the seal receiving portion 53 is provided so as to surround the shaft 152 in the radial direction. The shaft 152 receives the rotational driving force of the fan motor 136 and rotates together with the blower fan 135. As described above, one end of the shaft 152 is disposed so as to be immersed in the washing water flowing into the fan case 134 during the washing process or the rinsing process. The blower fan 135 blows the laundry during the drying process, but can be controlled to rotate during the washing process or the rinsing process to generate a water flow.

  The blower 131 is connected to the water tank 4 through an inlet 162 that is an inlet of the blower. In the space between the suction port 162 and the metal plate 49, a mesh-like filter 160 knitted with metal thread is provided, and the air in the water tank 4 does not pass through the filter 160 so that the suction port 162 is opened. The filter 160 is attached so as to cover the inlet 162 so as not to pass through.

  As shown in FIG. 5, the filter 160 is arranged on the bottom surface of the water tub 4 as shown in FIG. 5. It has a symmetric, substantially arc shape, and faces the inlet 162 (see FIG. 3) from the water tank on the left side of FIG. As shown in FIG. 4, the blower fan 135 is provided at the suction port 162 so as to face the suction port 162. FIG. 5 shows a dehumidifying heat exchanger 133 provided on the path to the inlet 162.

  Therefore, the air (washing water) flowing in the direction perpendicular to the paper surface of FIG. 5 through the dehumidifying path 164 (see FIG. 3) to the inlet 162 passes through the filter 160 and enters the blower 131. Inflow. In the washing process or the rinsing process, the washing water flows in the water tank 4 and the blower 131, and foreign matters such as lint contained in the washing water are collected by passing through the filter 160, and are fed into the blower 131. Intrusion of foreign matter is prevented. Since the foreign matter collected by the filter 160 is removed from the surface of the filter 160 by the water flow generated by the rotation of the rotary drum 5, the clogging of the filter 160 is eliminated. Further, since the inner peripheral surface of the aquarium has a gentle arc shape and follows the rotation direction of the rotating drum, foreign matter such as lint that sinks to the bottom of the aquarium due to the water flow caused by the rotation of the rotating drum swings in the rotation direction. However, since the filter 160 is disposed on the bottom surface of the water tank 4, it is difficult for foreign matters to reattach to the filter 160. In the drying process, air flows in the water tank 4 and the blower 131, and foreign matters contained in the air are collected by passing through the filter 160, thereby preventing foreign matters from entering the blower 131. Can be removed.

  In order to collect foreign matter such as washing water carried by the blower 131 or lint in the air as described above, the filter 160 is in a range where the suction force by the blower fan 135 is reached, that is, the water tank of FIG. It is sufficient to cover only the portion facing the inlet 162 shown on the lower left side of FIG. However, in the actual washing process, rinsing process or drying process, the lint that has been carried by washing water or air accumulates on the filter 160 over a long period of time. A lot of lint accumulates in the opposing region, which causes a reduction in suction efficiency.

  Therefore, in this embodiment, the filter 160 is expanded not only to the portion facing the inlet 162 shown on the lower left side of the water tank 4 in FIG. 5 where the suction force by the blower fan 135 directly acts, but also to the right side not facing the blower 131. It is arranged. That is, the filter 160 is disposed over an area larger than the opening area of the suction port 162 when viewed from the central axis L1 direction of the water tank 4. In such a configuration, the lint is initially attached only to the region facing the suction port 162 of the blower 131, but the suction force of the portion to which the lint is attached decreases as the operation time becomes longer. To do. For this reason, lint does not adhere any further to the part where the suction force is lost and moves to the surrounding part where the suction force is still maintained, so that the lint attachment area gradually increases. The yarn spreads and eventually concentrates on the left side in FIG. 5 and lint adheres.

  However, in this embodiment, since the filter 160 is arranged to the right side in FIG. 5 as described above, even if the suction force on the left side in FIG. Since the right side portion to which the lint is not attached can be used as a filter, the filter effect can be maintained for an extremely long time.

  Further, the filter 160 used in the drum-type drying washing machine according to this embodiment is not a simple flat plate, but as clearly shown in FIGS. 6 and 7, the direction of the water tank 4, that is, the dehumidifying heat exchanger 133. Is provided with a bulging portion 160a that bulges in the direction of the metal plate 49 that constitutes the plate. In this way, by slightly inflating the filter 160 in the direction of the water tank 4, a ventilation path is formed between the bottom surface of the water tank 4 and the filter 160 to ensure the long-term usability of the filter 160.

  The filter 160 is not formed by knitting a metal thread into a mesh shape, but may be a plastic molded product or a metal plate punched out of small holes. In some cases, burrs and return occur, and lint and cotton dust get caught and block the small holes. Therefore, it is desirable that the filter 160 has a net structure in which wires are knitted in a mesh shape. In the case of such a network structure, not only is there no fear of burrs and returns as described above, but the ratio of the area of the small holes to the area of the plate surface (ie, the aperture ratio) can be increased, and excellent foreign matter trapping is achieved. The ability as a means of collecting can be demonstrated.

  The wire constituting the filter 160 may be a resin wire in addition to a metal wire, but a metal wire is preferable because its surface is smooth and lint and cotton are not easily caught. Also, if the crossing part of the mesh of the wire rod is fixed, such as a metal coating made of knitted metal wire, the foreign matter is caught between the crossed wire rods or the crossing part moves. The occurrence of defects such as roughness fluctuations can be prevented.

  In this case, the mesh of the filter 160 may be 1 mm to 3 mm. This makes it easier to get entangled in the shaft connecting the blower fan and fan motor. It is possible to prevent early clogging of the filter 160 due to small foreign matter.

  By providing the filter 160 in this way, the inconvenience that foreign matters such as lint and cotton dust get entangled with the blower fan 135 or its shaft 152 is avoided. Further, since the region where the filter 160 is provided as described above is not only the portion facing the suction port 162 where the suction force is directly applied by the blower fan 135 but also the portion away from the blower fan 135, the blower fan over a long period of time. The suction force of 135 can be strongly maintained.

  In this embodiment, the filter 160 is automatically clogged by the water flow generated by the rotation of the rotary drum 5 in the washing process or the rinsing process, but in order to more reliably remove the clogging of the filter 160. On the side facing the water tank 4 on the back surface of the rotating drum 5, a blade 170 is provided to make it easier to generate a water flow that cleans the surface of the filter 160 as the rotating drum 5 rotates. Here, the blade 170 is an example of a cleaning unit.

  9 is a schematic view of the back side of the rotary drum 5 facing the water tank 4, FIG. 10A is a schematic view of the blade viewed from the arrow A in FIG. 9, and FIG. 10B is a view from the arrow B in FIG. A schematic view of the seen blade is shown.

  On the side facing the water tank 4 on the back surface of the rotary drum 5, a blade 170 is attached at a position that is 180 degrees rotationally symmetric. As shown in FIG. 9, the blade 170 is fixed to the bottom surface of the rotating drum 5 by a rivet 172 (see FIG. 10B) in a state where it is inclined 45 degrees with respect to the diameter direction of the rotating drum 5. . Further, as shown in FIG. 10A, the blade 170 is inclined by 30 degrees with respect to the rotation axis of the rotary drum 5 in the direction opposite to the rotation direction in the dehydration process indicated by the arrow D6. In order to prevent the blade 170 from generating wind noise by high-speed rotation of 1000 rpm in the direction of arrow D6 of the rotary drum 5 in the dehydration process, the 45 ° inclination angle and the 30 ° inclination angle are provided. In the present embodiment, the blade 170 is inclined with respect to the diameter direction of the rotating drum 5 and is also inclined with respect to the rotation axis of the rotating drum 5. By adjusting the inclination angle of one of the drums 5 in the rotation axis direction, wind noise during the dehydration process can be reduced.

  The blade 170 rotates about the rotation axis of the rotating drum 5 by the rotation of the rotating drum 5 during the washing process or the rinsing process to generate a water flow in the washing water. As indicated by D8, the light passes through the projection surface of the filter 160. The water flow of the washing water due to the rotation of the blade 170 acts on the foreign matter adhering to the surface of the filter 160 and pulls the foreign matter away from the filter 160. Since the separating action is particularly greater near the trajectory through which the blade 170 passes, the filter 160 in this embodiment may have a concave shape in a region E close to the center side of the rotary drum 5 as shown in FIG. Good. Since the blade 170 can be configured to have a plurality of distances from the rotation axis of the rotary drum 5, the filter 160 can be made wider, and such a dent region is also provided. A cleaning effect can be imparted to E as well.

  The blade 170 is composed of a plurality of metal pieces fixed to the bottom surface of the rotary drum 5, but is preferably provided at a rotationally symmetric position so as not to break the rotational balance of the rotary drum 5. Alternatively, it may be provided in at least one place for correcting imbalance based on caulking of the peripheral wall of the rotating drum 5. The blade 170 is not necessarily made of metal, and may be, for example, resinous.

  FIG. 11 shows a block diagram of the main part of the drum-type drying washing machine X.

  A control unit 202 shown in FIG. 11 includes a calculation unit such as a CPU and a storage unit such as a ROM and a RAM, and performs overall control of the drum-type drying washing machine X. An operation input unit 201 illustrated in FIG. 11 is an operation input interface provided on the operation panel 11 of the drum-type drying washing machine X. Operation input information from the operation input unit 201 is input to the control unit 202. Via the operation input to the operation input unit 201, washing courses such as “standard”, “tickling”, “big”, “Ag rinse”, “my home”, “dry”, water tank 4 and rotation The user selects an operation course of a maintenance course such as “tank cleaning” for cleaning the drum 5 and “filter cleaning” which is a special course for removing foreign matters of the filter 160, and the control unit 202 performs the control based on the selected course. Control of each part of the drum-type drying washing machine X, such as the motor 9, the circulation pump 45, and the fan motor 136, is performed. Here, the operation input unit 201 is an example of an input unit, the control unit 202 is an example of a rotary drum rotation control unit, the “standard” course is an example of a first control state, and the “filter cleaning” course is an example of a second control state. .

  FIG. 12 shows a detailed view of the operation input unit 201.

  The operation input unit 201 includes a course key k1 for selecting a driving course, a course display unit 203 for displaying which course is selected by the course key, a remaining time until the end of the currently running course, and a reserved driving start. A timer display unit 204 for displaying the time, a washing / drying key k2 for selecting whether or not to automatically perform the drying process, a start key k4 for starting or temporarily stopping the washing operation, and the like.

  In selecting each driving course by operating the operation input unit 201, the control unit 202 counts the number of times the course key k1 is pressed, and in response to each of the driving courses in the course display unit 203. The corresponding display is turned on (that is, the lighting on the course display unit 203 changes as the course key k1 is pressed). Further, when the user performs a predetermined confirmation operation (for example, pressing operation of the washing / drying key k2 or the start key k4) in a state where the display corresponding to each of the driving courses is lit, the control unit 202 Then, it is determined that the execution request of the driving course corresponding to the number of times the course key k1 is pressed is made. When the course key k1 is not operated when the power is turned on, the “standard” display 203a among the above-described courses is lit, that is, the “standard” course is selected. Therefore, if the washing key k2 or the start key k4 is pressed without pressing the coarse key k1 immediately after the power is turned on (that is, if selection is confirmed), the control unit 202 will be described later. Control of each part corresponding to the “standard” course is started. In the case of performing the “bath cleaning” course, similarly, the user presses the course key k1 repeatedly to turn on the “bath cleaning” display 203b on the display unit 203, and the user confirms a predetermined value. When an operation (for example, a pressing operation of the washing key k2 or the start key k4) is performed, the control unit 202 starts control of each unit corresponding to a “bath washing” course as described later.

  FIG. 13 is a flowchart showing a processing procedure by the control unit 202. 14A shows a washing process in the “standard” course, FIG. 14B shows a filter washing process in the “filter washing” course, and FIG. 14C shows a tank washing process in the “bath washing” course. The time chart showing the rotation direction and rotation speed of the rotating drum 5 is shown.

  Hereinafter, the content of processing control by the control unit 202 of the drum-type drying washing machine X will be described with reference to FIGS. Each step of the flow shown in FIG. 13 is executed by the control unit 202 controlling each part of the drum-type drying washing machine X including the motor 9, the circulation pump 45, the fan motor 136, and the like. The 13, S1, S2,... Indicate processing numbers. When the drum-type drying washing machine X is turned on, that is, when the user presses the power-on key k3 shown in FIG. Start with processing.

  In step S <b> 1, the control unit 202 determines whether or not the course key k <b> 1 has been pressed via the operation input unit 201. As described above, when the power is turned on, the "standard" display 203a is lit, that is, the "standard" course is selected. Therefore, step S1 corresponds to determination as to whether or not the user is requesting the start of the “standard” course. If a predetermined confirming operation is performed after the course key k1 is pressed at least once (for example, pressing operation of the washing key k2 or the start key k4) (YES in step S1), the process proceeds to step S2. Each time the course key k1 is pressed, “Standard” → “Addition” → “Big” → “Ag Rinse” → “My Home Style” → “Dry” → “Bath Cleaning” → “Filter Cleaning” is selected. If the course key is changed and the course key k1 is pressed again in a state where the course is changed and “filter cleaning” is selected, the state returns to the selection state of the “standard” course. That is, the process returns to the state of step S1. Here, the operation input unit 201 is an example of a control state switching unit.

  In step S2, the control unit 202 controls each unit according to the course selected in step S1. In addition, each washing course of “tacking”, “big game”, “Ag rinse”, “my family style”, and “dry” has a rotational speed of the rotating drum 5 by the motor 9 and a resting time during which the rotating drum 5 is not rotated. A course different from the “standard” course or provided with a function not related to the characteristic part of the present invention, and removing foreign matters (lint etc.) from the filter 160 which is a characteristic part of the present invention, Removal of foreign matters (such as cotton dust) from the blower fan 135 and the drying path is performed in the same manner as in the “standard” course. Therefore, hereinafter, the characteristic control of the present invention will be described by taking the “standard” course as an example.

  On the other hand, when the control unit 202 determines that the washing / drying key k2 is pressed in a state where the “standard” course is selected such that the course key k1 has never been pressed (step S3). YES), go to step S7. On the other hand, when it is determined that the “standard” course is selected (NO in step S1) and the start key k4 is pressed (NO in step S3), the control unit 202 determines that the “standard” course is in the “standard” course. It progresses to step S4 which performs each process. It should be noted that the washing / drying key k2 is pressed (confirmation operation) in a state where the “standard” course (the same applies to “washing”, “big game”, “Ag rinse”, “my family style”, and “dry” washing courses) ) Means the execution request input of the drying process described above in addition to the washing process, the rinsing process, and the dehydrating process.

  In step S4, the control unit 202 washes, rinses and dehydrates the laundry, and easily removes foreign matters adhering to the filter 160, the blower fan 135 and the drying path. Each part in the process and the rinsing process is controlled. Hereinafter, control in the “standard” course for removing foreign matters such as lint attached to the filter 160 by the drum-type drying washing machine X according to the embodiment of the present invention will be described.

  In the “standard” course, three steps of a washing step, a rinsing step, and a dehydrating step are performed. In the washing step, as shown in the term chart of FIG. 14A, the control unit 202 controls the motor 9 to rotate the rotating drum 5 in the clockwise direction and counterclockwise at the first rotation speed of 50 rpm. Rotate alternately in clockwise direction. When the rotation direction is switched, a stop interval (first interval, about 2 to 4 seconds) in which the motor 9 is not driven is inserted. Such rotational driving is normally continued for 15 to 40 minutes based on the amount of laundry contained in the rotating drum 5 or the user's setting. Note that “50 rpm” shown in FIG. 14A indicates a state where the rotating drum 5 is rotating in the clockwise direction, and “−50 rpm” indicates a state where the rotating drum 5 is rotating in the counterclockwise direction. Hereinafter, the clockwise direction and the counterclockwise direction are collectively referred to as forward and reverse directions.

  Meanwhile, foreign matters such as fine cotton dust that cannot be collected by the filter 160 pass through the filter 160 and adhere to the blower fan 135, or other drying paths of the drying system 106 (arrow D1 in FIG. 8). To each part of the route along D5). Therefore, in the washing process in which the washing water is in the water tank 4 and the drying path is immersed in the washing water, the control unit 202 controls the drive of the fan motor 136 and is immersed in the washing water. The blower fan 135 is rotated. By the water flow by the blower fan 135, foreign matters such as cotton dust adhering to the blower fan 135 and the drying path are washed away.

  Further, the control unit 202 is configured to circulate the washing water through the route from the drain duct 21 to the circulation hose 46 for several tens of seconds after the start of the rotation of the blower fan 135, which is a predetermined time. The circulation pump 45 is controlled to operate in conjunction with the blower fan 135. In the state where only the blower fan 135 rotates, the washing water flows linearly from the discharge port 158 shown in FIG. 8 toward the heating unit 132, so that the heating unit 132 and the surrounding dust are removed. Removed. Further, in the state where the blower fan 135 and the circulation pump 45 are operated at the same time, suction of the washing water from the drain port 110 shown in FIG. 2 occurs, so the washing water around the discharge port 158 is generated. The water flow becomes curved, and cotton dust around the discharge port 158 is removed. That is, it is possible to switch the region where the dust is removed by operating the circulation pump 45.

  Further, just before the end of the washing step, the control unit 202 controls the motor 9 to cause the rotary drum 5 to rotate at a second rotational speed of 65 rpm which is faster than the first rotational speed. Then, it is driven to rotate about 20-30 seconds alternately in forward and reverse directions. The control unit 202 is an example of an operation speed control unit.

  Incidentally, as described above, the foreign matter adhering to the surface of the filter 160 is removed by the water flow generated by the rotation of the rotary drum 5 and the blade 170 provided at the bottom thereof. The strength of the water flow for removing foreign matters on the surface of the filter 160 is affected by the rotational speed of the rotary drum 5. Therefore, the control unit 202 controls the rotational speed of the rotating drum 5 by controlling the driving of the motor 9, and removes the foreign matter from the filter 160 by the rotating drum 5 and the blade 170 provided at the bottom thereof. It becomes possible to adjust the strength of the water flow. In other words, the foreign matter removal capability from the filter 160 can be improved by increasing the rotational speed of the rotary drum 5 from 50 rpm to 65 rpm.

  That is, by rotating the rotating drum 5 at 65 rpm just before the end of the washing process, a strong water flow is generated in the vicinity of the filter 160 by the rotating drum 5 and the blade 170 and remains in the filter 160 without being removed. Remove foreign material. After performing the rotation drive at the second rotation speed for a predetermined time (20 to 30 seconds in the present embodiment), the control unit 202 controls the drain motor 124 (see FIG. 2) to control the drain valve 25. The washing water is discharged from the water tank 4 through the drain duct 21. Here, the drain motor 124, the drain valve 25, and the drain duct 21 are examples of drain means. At this time, in order to remove foreign matter (lint etc.) from the filter 160, the control unit 202 may rotate the rotary drum 5 alternately in the forward and reverse directions at a high speed of 65 rpm simultaneously with the drainage operation. good. When the rotation direction of the rotary drum 5 is switched at the same time as the drainage operation, a stop interval at which the rotary drum 5 does not rotate is inserted. The stop interval (second stop interval, about 1 second) of the rotating drum 5 during the drainage work is the stop interval (first stop interval, about 2 to 4 seconds) when the rotating drum 5 rotates at 50 rpm. ). That is, since the water level of the washing water in the water tank 4 continues to decrease during the stop interval at the time of switching the rotation direction, the water flow is reduced to the front of the filter 160 by setting the stop interval short. It is possible to act as evenly as possible. In addition, control which closes the said drain valve 25 during the said stop interval may be performed, and the fall of the water level during the said stop interval may be prevented. When the discharge of the washing water in the water tank 4 through the drainage duct 21 is completed, the washing process ends.

  When the washing process is completed, a rinsing process is then performed. In the rinsing process, the controller 202 controls the motor 9 in a state where the washing water is supplied into the water tub 4 in the same manner as in the washing process, so that the rotary drum 5 is rotated at a first rotational speed of 50 rpm. Rotate alternately in forward and reverse directions. When the rotation direction is switched, a stop interval (first interval, about 2 to 4 seconds) in which the motor 9 is not driven is inserted. Such rotational driving is normally continued for 5 to 15 minutes based on the amount of laundry contained in the rotating drum 5 or the user's setting. Here, as in the washing step, the fan motor 136 may be driven and controlled to wash away foreign matters such as dust adhering to the blower fan 135, the shaft 152, the drying path, and the like. Further, the circulation pump 45 may be operated in conjunction with the drive control of the fan motor 136.

  Further, just before the end of the rinsing process, the control unit 202 controls the motor 9 to cause the rotary drum 5 to rotate at a second rotational speed of 65 rpm which is faster than the first rotational speed. Then, it is driven to rotate about 20-30 seconds alternately in forward and reverse directions.

  After performing the rotation drive at the second rotation speed for a predetermined time (20 to 30 seconds in the present embodiment), the control unit 202 opens the drain valve 25 and discharges the washing water from the water tank 4. At this time, the drainage operation may be performed while rotating the rotary drum 5 as in the washing step. The rinsing process is completed by repeating the rinsing operation from the water supply to the water tank to the drainage from the water tank through the rotation control of the rotating drum one or more times. In addition, you may perform the rotational drive of the said rotating drum 5 by such 65 rpm either at the end of the said washing | cleaning process or a rinse process. Moreover, it may be performed just before the end of each step as in the present embodiment.

  When the rinsing process is completed, a dehydrating process is performed next. In the dewatering step, the control unit 202 controls the motor 9 to centrifugally dehydrate the laundry in the rotating drum 5 at a maximum rotation speed of 1000 rpm. After dehydration for a predetermined time, the dehydration process is completed. When the washing process, the rinsing process, and the dehydrating process as described above are completed, the control unit 202 ends the “standard” course (step S5), and automatically powers off the drum-type drying washing machine X (step S6). ).

  Hereinafter, control of each unit by the control unit 202 when the process proceeds from step S3 to step S7 will be described.

  In step S7 and subsequent steps, the control unit 202 executes processing in the drying step (step S9) in addition to each step (washing, rinsing, dehydration step) of the “standard” course (step S7) as in step S4. Steps S7 and S8 are the same as steps S4 and S5 described above. In step S9 (drying process) subsequent to step S8, the control unit 202 executes a process for drying the laundry in the washed state. This drying process is the same as already described in detail in the explanation of the drying system 106 (see FIG. 2). Near the end of the drying process, the control unit 202 detects whether the filter 160 is clogged (step S10). Such clogging can be detected based on the temperature of the drying air at each location in the drying path.

  When clogging is not detected (NO in step 10), the process proceeds to step S11, and the control unit 202 ends the control related to the drying process. When step S11 ends, the process proceeds to step S12. On the other hand, if clogging is detected in step S10 (YES in step 10), the process proceeds to S14.

  In step S12, the controller 202 compares the accumulated drying time (the accumulated time during which the drying process has been executed) with a predetermined reference time. Such a reference time is stored in the storage unit included in the control unit 202. When it is determined that the accumulated dry time is less than the reference time (YES in S12), the process proceeds to step S13, where the control unit 202 shuts off the power and ends the control. On the other hand, if the controller 202 determines that the accumulated dry time is equal to or longer than the reference time (NO in S12), the process proceeds to step S14.

  If clogging of the filter 160 is detected in step S10, or if the accumulated drying time exceeds the reference time, there is a high possibility that the amount of air blown by the blower 131 has decreased, and the filter 160 Control should be done to eliminate the clogging. Therefore, in step S14 and subsequent steps, the control unit 202 prompts the user to execute the “filter cleaning” course so that the clogging of the filter 160 is eliminated. That is, in step S <b> 14, the control unit 202 blinks the “bath cleaning” display 203 b provided in the operation input unit 201. At the same time, the display of the timer display unit 204 is set to “0:20”. In the present embodiment, when the “bath cleaning” display 203b is lit, it indicates that the “bath cleaning” course is selected as the operation course. In the present embodiment, a dedicated display unit indicating that the “filter cleaning” course is selected is not provided, but may be provided as appropriate.

  In step S15 following step S14, the control unit 202 waits until there is a “filter cleaning” course finalizing operation (such as a pressing operation of the start key k4) by the user via the operation input unit 201. Do. When the confirmation operation input is performed, the control unit 202 executes each process in the “filter cleaning” course.

  Hereinafter, operations of the drum-type dry washing machine X according to the embodiment of the present invention in the “bath cleaning” course and the “filter cleaning” course will be described with reference to FIG.

  The “bath cleaning” course is a course for cleaning the inside of the water tank 4, and the rotating drum is in a state where a predetermined tank cleaner liquid is in the water tank 4 as shown in FIG. 14 (c). 5 is a course in which 5 is rotated and rotated alternately at 50 rpm forward and reverse directions. In the “bath cleaning” course, the control unit 202 rotates the blower fan 135 by driving control of the fan motor 136 in the same manner as the washing step, so that the blower fan 135, the shaft 152, the drying path, etc. Perform cleaning. The control unit 202 also operates the circulation pump 45 when the fan motor 136 is being rotationally driven.

  The “filter cleaning” course is a course for removing foreign substances adhering to the filter 160. That is, in a state where the water tank 4 is filled with washing water (or a predetermined tank cleaner liquid or the like), the control unit 202 controls the motor 9 to rotate the rotation as shown in FIG. The drum 5 is alternately rotated in the forward and reverse directions at a first rotational speed of 50 rpm, a rotational speed of the “bath cleaning” course, or a third rotational speed of 100 rpm, for example, higher than the second rotational speed of 65 rpm. Is rotated for about 20 minutes (the same time as the display by the timer display unit 204). That is, in the “standard” course, the control unit 202 (operation speed control means) causes the rotary drum 5 to rotate at the first rotation speed (50 rpm in this embodiment) or the second rotation speed (this embodiment). The blade 170 provided at the bottom of the rotating drum 5 is driven to rotate at a higher speed than when rotating at 65 rpm, and the filter 160 has a very high foreign substance removal performance. Here, the control unit 202 is an example of a high-speed operation control unit.

  Further, during the high-speed rotation at the third rotation speed, the control unit 202 periodically rotates the blower fan 135 in the same manner as the washing process and the rinsing process of the “standard” course. Similarly, the circulating pump 45 is driven. Thus, after the rotating drum 5 is rotated for about 15 to 20 minutes, the drain valve 25 is opened, the washing water is drained from the water tank 4, and the "filter cleaning" course is completed. Here, the control unit 202 is an example of a blower fan control unit and a circulation pump control unit.

  As described above, according to the drum-type drying washing machine X according to the present embodiment, the foreign matter adhering to the filter 160 that prevents the lint from entering the blower 131 in various washing courses in addition to the “standard” course. The cleaning effect can be enhanced.

  Further, the “standard” course (first control state controlled by the operation speed control means) and the “bath cleaning” course by an operation input from the operation input unit 201 (an example of an input means and a control state switching means). The “filter cleaning” course (second control state controlled by the high-speed operation control means) or the like can be switched, and the filter 160 is cleaned when the filter 160 is clogged. A “filter cleaning” course can optionally be implemented.

  Further, when the blower fan 135 and the circulation pump 45 are operated in a state where the water tank 4 is filled with washing water, the blower fan 135, the shaft 152, and other dust attached to the drying path are removed. it can.

  The washing machine is exemplified as one that automatically performs the process from washing to drying, but the present invention is naturally applicable even to a so-called semi-automatic washing machine that performs part of the process manually. Needless to say.

  Moreover, in the said embodiment, what was formed in the arc shape by the left-right equal distribution centering on the center of the left-right direction of a washing machine is employ | adopted in the said embodiment, but this was provided in one side as mentioned above. This is for increasing the area of the filter 160 and keeping the cleaning period of the filter 160 longer based on the accumulation of foreign matter on the filter 160 facing the blower fan 135. Therefore, if the clogging of the filter 160 does not occur so frequently, it is not always necessary to secure a wide filter area as described above. In this case, for example, the right half of the filter 160 in FIG. It is also possible to use a wall surface that is not a filter.

  In the above-described embodiment, the “standard” course (first control state controlled by the operation speed control means) and the “filter cleaning” course (high speed operation) are input by an operation input from the operation input unit 201 (an example of the input means). The example in which the selection switching with the first control state controlled by the control means is possible has been described, but the present invention is not limited to this. That is, based on the detection result such as clogging of the filter 160, the control unit 202 may automatically shift from the “standard” course to the “filter cleaning” course.

1 is an external perspective view of a drum-type drying washing machine according to an embodiment of the present invention. Sectional drawing cut | disconnected by the F2-F2 line | wire in FIG. Sectional drawing cut | disconnected by the F3-F3 line | wire in FIG. Sectional drawing cut | disconnected by the F4-F4 line | wire in FIG. Schematic of the water tank inner bottom face of the drum type drying washing machine concerning one embodiment of the present invention. FIG. 5 is a detailed view around the filter in FIG. 4. FIG. 6 is a detailed view around the filter in FIG. 5. Schematic which shows the circulation circuit of the air at the time of a drying process. BRIEF DESCRIPTION OF THE DRAWINGS The schematic of the side which faces the water tank of the back surface of the rotating drum of the drum type drying washing machine concerning one Embodiment of this invention. (A) is the schematic of the braid | blade seen from the arrow A of FIG. 11, (b) is the schematic of the braid | blade seen from the arrow B of FIG. The block diagram of the principal part of the drum-type drying washing machine concerning one Embodiment of this invention. The front view of the operation input part of the drum type dry washing machine concerning one Embodiment of this invention. The flowchart which shows the control procedure by the control part of the drum type dry washing machine concerning one Embodiment of this invention. The time chart showing the rotation direction and rotation speed of the said rotating drum 5 in each process performed by the control part of the drum type drying washing machine concerning one Embodiment of this invention. The schematic longitudinal cross-sectional view seen from the side surface at the time of the external door opening of the conventional drum type washing machine. The schematic longitudinal cross-sectional view seen from the side surface at the time of the external door closing of the conventional drum-type drying washing machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer box 4 Water tank 5 Rotating drum 11 Operation panel 21 Drain duct 25 Drain valve 45 Circulation pump 106 Drying system 131 Blower 132 Heating part 133 Dehumidification heat exchanger 158 Discharge port 160 Filter 162 Suction port 170 Blade 201 Operation input unit 202 Control Part

Claims (10)

A water tank, a rotating drum rotatably disposed in the water tank, a dehumidifying part for dehumidifying air guided from the rotating drum, a heating part for heating the air dehumidified in the dehumidifying part, and the rotation The air in the drum is guided to the dehumidifying unit and the air heated by the heating unit is blown into the rotating drum, and between the rotating drum and the air blowing unit and during the drying process. Drying provided with a filter means provided in a path on the suction port side, which is upstream of the air flow generated by the blower, and arranged to be immersed in the washing water supplied into the water tank during the washing step or the rinsing step In the washing machine,
A cleaning unit that generates a water flow in the washing water based on a rotational drive of the rotating drum to remove foreign matters attached to the filter unit, and a rotating drum rotation that changes a rotating speed of the rotating drum in a washing step or a rinsing step A drying washing machine comprising a control means.   The rotating drum includes a cleaning unit that generates a water flow in the washing water based on a rotational drive of the rotating drum during a washing step or a rinsing step to remove foreign matters attached to the filter unit. The dry washing machine according to claim 1.   The blower unit includes a blower fan, a fan motor that rotationally drives the blower fan, and a shaft having one end connected to the blower fan and the other end connected to the fan motor. 3. The drying washing machine according to claim 1, wherein the blower fan is disposed so as to be immersed in washing water supplied into the water tub during a washing step or a rinsing step. .   The rotary drum rotation control means is configured to remove a foreign matter adhering mainly to the filter means and a first rotation speed for mainly washing the laundry that includes the rotary drum in the washing step or the rinsing step. The drying washing machine according to any one of claims 1 to 3, further comprising an operation speed control means that rotates at a second rotation speed that is faster than the rotation speed. . A drainage means for draining the washing water from the water tank;
The rotating drum rotation control means rotates the rotating drum at the second rotation speed when the washing water supplied into the water tank is drained from the water tank by the draining means during the washing process or the rinsing process. The dry washing machine according to claim 4, wherein   The rotating drum rotation control means alternately rotates in the forward / reverse direction when rotating at the first rotational speed, and stops driving control during a first interval when switching to the forward / reverse direction, and the second The rotation control is alternately rotated in the forward / reverse direction at the time of rotation at a rotation speed, and the drive control is stopped for a second interval shorter than the first interval when switching to the forward / reverse direction. 5. The dry washing machine according to 5.   5. The rotary drum rotation control means includes high-speed operation control means for rotating the rotary drum at a third rotation speed that is higher than the second rotation speed. The dry washing machine according to claim 1.   The rotary drum rotation control means has a first control state controlled by the operation speed control means and a second control state controlled by the high speed operation control means based on an input through the input means. The dry washing machine according to claim 7, further comprising a control state switching means for switching. The rotary drum rotation control means has a first rotation speed for cleaning the laundry mainly containing the rotary drum during the washing step or the rinsing step, and the first rotation speed for mainly removing foreign matter adhering to the filter means. An operation speed control means for rotating at a second rotation speed that is faster than the second rotation speed, and a high speed for rotating the rotating drum at a third rotation speed that is faster than the second rotation speed. Operation control means,
The drying washing machine according to claim 3, further comprising a blower fan control unit that rotationally drives the blower fan in a state where the rotation of the rotary drum is controlled by the high-speed operation control unit.   The inlet that leads the washing water in the water tank to the circulation path, the circulation inlet arranged on the downstream side of the water flow by the blower fan, and the washing water guided to the circulation path again into the water tank And a circulation pump control means for controlling the operation of the circulation pump in a state where the rotation of the rotary drum is controlled by the high speed operation control means. 9. The dry washing machine according to 9.

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