JP4357352B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing / drying machine that includes a drying device having a water-cooled heat exchanger and performs washing, dehydration and drying.

  Conventionally, an outer tub elastically supported in a casing (also referred to as an outer frame) and an inner tub (a washing tub or a washing / dehydrating tub) that has a central axis of rotation in a vertical direction and is rotatably supported in the outer tub. A rotating blade provided rotatably on the inner bottom of the inner tank, a driving means for driving the inner tank or the rotating blade, a hot air blowing means for blowing warm air into the inner tank, and a heat exchanger The hot air circulation path for circulating the hot air by the hot air blowing means, the cooling means for cooling the heat exchanger, the drive means, the hot air blowing means, the cooling means, etc., controlling the operation, washing, rinsing, dehydrating In addition, there is known a washing / drying machine that includes a control unit that controls a process such as drying, and has a heat exchanger having a stepped water scattering portion on the inner surface (for example, see Patent Document 1).

Japanese Patent Laying-Open No. 2003-93779 (second page, FIG. 1)

In the above-described conventional technology, lint is formed in a duct that constitutes a heat exchanger and serves as a flow path for circulating air that is blown by warm air blowing means, together with washing water in a washing process or in a drying process. May be carried with the air blown by the hot air blowing means.
The objective of this invention is providing the washing-drying machine provided with the means suitable for removing the lint conveyed in the ventilation duct of the circulating air which comprises a heat exchanger.

In order to achieve the above object, the washing and drying machine of the present invention has the following configuration.
A first discharge port that discharges cooling water during water-cooling and dehumidification in a blower duct (air channel) that communicates with the inside of the outer tub and constitutes a heat exchange unit that cools and dehumidifies the circulating air, In addition, a second discharge port for discharging water is provided, and for example, a pump for pumping bath water from a bathtub (hereinafter, water pumped up by this pump is referred to as bath water) is connected to the second discharge port.
The lint can be washed away by the water discharged from the second discharge port, and water can be saved by using bath water as this water. Furthermore, since the flow rate can be changed within the range permitted by the pump performance when using tap water, it is easy to ensure a flow rate suitable for washing the lint. This is particularly advantageous when it is desired to increase the flow rate compared to when tap water is used.
In the washing / drying machine of the present invention, bath water can be used as cooling water by discharging bath water from the second discharge port during water-cooled dehumidification. In addition to saving water, it is advantageous when a large amount of water is required as the cooling water for the above-described reason, and the drying time of the laundry can be shortened.
When tap water is used, if the tap water is used elsewhere in the home, the amount of water supplied will change, while the amount of water supplied by the pump will not change. This is particularly advantageous because it does not change and the drying time can be constant.

  ADVANTAGE OF THE INVENTION According to this invention, the washing-drying machine provided with the means suitable for removing the lint conveyed in the ventilation duct of the circulating air which comprises a heat exchanger can be provided.

The present invention includes an inner tub that is a washing and dewatering tub provided rotatably in an outer tub that stores washing water, a rotary vane that is provided rotatably at the bottom of the inner tub, and the inner tub. And / or a drive mechanism for selectively rotating the rotary vane, a water supply mechanism for supplying washing water into the outer tub, a drainage mechanism for draining the washing water in the outer tub, Water level detecting means for detecting the level of the washing water, a washing water circulation mechanism for circulating the washing water in the outer tub so as to descend from the upper side of the inner tub into the inner tub, the drive mechanism, the water supply mechanism, and the drainage In an electric washing machine equipped with a control device for controlling the mechanism and the washing water circulation mechanism,
The control device controls the water supply mechanism so that washing water is maintained at a water level that does not exceed the pulsating blade and accumulates at the bottom of the outer tub,
The rotary blade is configured as a pulsating blade with a plurality of raised portions that provide a gentle inclined surface that repeatedly applies an upward component force to the laundry on the plate by rotating, and the top of the raised portion Provide a number of through holes distributed in the area excluding the part,
The inner tank is formed by an upper surface of a bulging portion that is located at a height facing the pulsating blade and protrudes inwardly from the inner peripheral wall surface, and sequentially increases in the circumferential direction along the inner peripheral wall surface. A plurality of inclined surfaces extending in a slanted manner, and a ridge extending in the vertical direction along the inner peripheral wall surface in a form bulging from the top portion of the inclined surface in the peripheral direction to the inner peripheral wall surface,
It is set as the structure provided with the air circulation system which draws out the air in the said outer tank, is water-cooled dehumidified, then heats and blows and circulates in an inner tank.

  In the washing step, the water level not exceeding the upper surface of the pulsating blade is maintained, and water is supplied so as to be accumulated at the bottom of the outer tub to dissolve the powder detergent. While circulating washing water with detergent concentration on the laundry, the pulsation blades are rotated forward and backward to repeatedly apply an upward force to the laundry to wash it. In the rinsing process, as in the washing process, While maintaining the water level not to exceed the top surface of the pulsating blade, the rinsing water supplied so as to collect at the bottom of the outer tub is circulated so as to fall on the laundry, and the pulsating blade is rotated forward and backward to face the laundry. In the drying process, a drying process is performed in which the laundry is dried by circulating air while rotating the pulsating blades. Execute Sea urchin to configure.

  The electric washing machine in this embodiment is configured to execute washing and drying, and basically has a configuration for executing washing and drying as follows.

  A washing / dehydrating tub, which is an inner tub, is rotatably installed in an outer tub for storing washing water, and a pulsating blade is rotatably installed at the bottom of the washing / dehydrating tub. The pulsating blade includes a plurality of ridges that provide a gentle inclined surface that repeatedly causes an upward component force to act on the laundry put on the pulsation blade by rotating, and a top portion of the ridge A large number of through-holes are provided in a distributed manner in the region excluding. The washing / dehydrating tub and the pulsating blade are configured to be selectively rotated by a driving mechanism.

  The washing and dewatering tub is formed by an upper surface of a bulging portion that protrudes inward from the inner peripheral wall surface at a height facing the pulsating blade, and sequentially in the circumferential direction along the inner peripheral wall surface. And a plurality of angled slopes extending in an inclined manner so as to increase in height, and extending in the longitudinal direction along the inner peripheral wall surface in a form bulging from the top portion of the inclined surface in the circumferential direction to the inside of the inner peripheral wall surface Provide ridges.

  Further, the detergent dispenser, the detergent water supply mechanism for introducing the powder detergent in the detergent dispenser into the bottom of the outer tub, the water supply mechanism for supplying washing water into the outer tub, and the washing water in the outer tub are drained. A drainage mechanism, a washing water circulation mechanism that circulates washing water at the bottom of the outer tub from above the washing and dehydration tub, and a water-cooled dehumidification by sucking out air in the outer tub The air circulation dehumidifying mechanism that heats and then circulates to blow into the washing and dewatering tub and dries the laundry, and controls the drive mechanism, water supply mechanism, drainage mechanism, washing water circulation mechanism, and air circulation dehumidification mechanism. A controller which is a control device is provided.

  The controller controls the washing and drying process as follows.

  In the washing step, in the subsequent washing step, the water level not exceeding the upper surface of the pulsating blade is maintained and water is supplied so as to accumulate at the bottom of the outer tub, thereby dissolving the powder detergent and increasing the concentration of the high detergent at the bottom of the outer tub. The washing water is generated, and the washing water is circulated so as to fall on the laundry, and the pulsation blade is rotated forward and backward to repeatedly apply an upward force to the laundry.

  In the rinsing step, as in the washing step, the pulsating blades are circulated while circulating the rinsing water supplied so that the water level does not exceed the upper surface of the pulsating blades and collects at the bottom of the outer tub. The washing is performed by pushing the washing water (detergent component) contained in the laundry by rotating the forward and reverse directions and repeatedly applying an upward force to the laundry.

  Then, in the drying step, the air in the outer tub is sucked out while rotating the pulsating blade forward and backward, and after water-cooled dehumidification, it is heated and circulated so as to blow into the washing and dewatering tub to dry the laundry.

  FIG. 1 is a schematic view showing a side surface in a state where an electric washing machine that performs such washing and drying is cut vertically, and 1 is a rectangular tubular side frame that constitutes an outer shell. 2 is a washing and dewatering tub constituting an inner tub, and has a plurality of small through holes 2a for water flow and ventilation on the outer peripheral wall thereof, and a plurality of holes for water flow and ventilation on the bottom wall thereof. A hole 2b is provided, a fluid balancer 3 is provided at the upper edge thereof, and a pulsating blade 4 is rotatably installed inside the bottom.

  The pulsating blade 4 constitutes an actuator for applying mechanical force to the laundry in this embodiment, and is rotated on the top surface of the washing / dehydrating tub 2 as shown in FIGS. As a result, a plurality of slantingly inclined in the rotational direction is generated so as to generate a push-washing force that repeatedly applies an upward component force to the laundry put on the pulsating blade 4 after being put into the washing / dehydrating tub 2 And a plurality of drainage through holes 4b. The raised portion 4a is inclined in a mountain shape in the rotation direction, and is inclined in the radial direction so that the outer peripheral portions are sequentially increased, and the outer peripheral end surface 4c is an inclined surface inclined so that the upper portion is tilted toward the center side. . The pulsating blade 4 in this embodiment has an outer diameter dimension of about 470 mm with respect to the washing and dewatering tub 2 having an inner diameter dimension of about 520 mm. In the pulsating blade 4 having such a size, the height of the highest portion of the raised portion 4a is preferably 65 to 70 mm, and the maximum inclination angle of the gentle inclined surface in the rotational direction forming the raised portion 4a is the horizontal plane. The inclination angle in the radial direction is preferably 10 to 20 degrees with respect to the horizontal plane, and the inclination angle of the outer peripheral end face 4c is 10 to 20 degrees with respect to the vertical plane. It is desirable to set it at 20 degrees. Further, the through holes 4b through which the washing water passes are distributed and provided in a region excluding the region of the top portion of the raised portion 4a, thereby reducing the rotational load torque that acts on the pulsating blade plate 4 from the laundry.

  As will be described in detail later, the pulsating blade 4 having such a configuration causes an appropriate upward force to repeatedly act on the laundry on the pulsating blade 4 by rotating, and the ridge 4a and the washing It is suitable for preventing the pulsating blade 4 from becoming unrotatable (locked) due to the laundry biting between the inner peripheral surface of the cum dewatering tank 2 and between the lifter (described later).

  The washing and dewatering tub 2 is provided with a lifter 5 for preventing upward biasing and cloth entanglement of the laundry by applying an upward force to the laundry near the inner peripheral wall surface at the bottom of the inner peripheral wall surface. Is provided. As shown in detail in FIGS. 6 and 7, the lifter 5 is formed by an upper surface of a bulging portion 5 a that is located at a height facing the pulsating blade 4 and protrudes inward from the inner peripheral wall surface. A mountain-shaped inclined surface 5b that inclines and extends so as to increase sequentially in the circumferential direction along the circumferential wall surface, and a shape that bulges from the top of the inclined surface 5b in the circumferential direction to the inside of the inner circumferential wall surface. A protrusion 5c extending in the vertical direction (upward) along the peripheral wall surface is provided. The inclined surface 5b has a height and inclination similar to the height and inclination angle of the gently inclined surface in the rotational direction forming the raised portion 4a in the pulsating blade 4. The lifter 5 is integrally formed and attached by resin molding.

In addition, a gap g _{1 of} about 25 mm or more is provided between the outer edge at the top of the raised portion 4a of the pulsating blade 4 and the top edge of the inclined surface 5b of the lifter 5 facing each other. It is desirable for the configuration to be able to ensure. Further, the gap g ₂ of the top portion outer edge and washing and dewatering tank 2 of the inner surface of the raised portion 4a of the pulsation wing plate 4 is preferably configured to be able to ensure a higher 30 mm.

  FIG. 8 is a perspective view showing the facing relationship between the pulsating blade 4 and the lifter 5 in the washing / dehydrating tub 2 through the washing / dehydrating tub 2. In this embodiment, the pulsation blade 4 is provided with two raised portions at intervals of 180 degrees, and the two lifters 5 are also installed at intervals of 180 degrees on the inner surface of the outer peripheral wall of the washing and dewatering tub 2. In FIG. 8, the illustration of one lifter is omitted.

  In the washing process, the lifter 5 configured as described above is rotated with the pulsating blade 4 while the washing wet with the washing water or the rinsing water is directly put on the pulsating blade 4. When it moves so as to be pressed against the inner peripheral wall surface of the washing and dewatering tub 2 by centrifugal force, an upward force is applied to the laundry by the inclined surface 5b of the lifter 5, and further, rotation is suppressed by the protrusion 5c and the pulsating blade Since the laundry moves toward the center side of the board 4, the laundry is biased near the inner peripheral wall surface of the washing and dewatering tub 2, and the upward portion acting on the laundry from the raised portion 4 a of the pulsating blade board 4. It is possible to reduce the phenomenon that the power is reduced and the washing efficiency is lowered, and the tangling of the laundry is also reduced. Furthermore, since the proper inclination angle of the outer peripheral end surface 4c of the raised portion 4a of the pulsating blade 4 and the proper interval between the inclined surface 5b and the inner peripheral wall surface of the washing and dewatering tub 2 are secured, the laundry bites. It is also possible to prevent the pulsating blade 4 from becoming unable to rotate.

  Further, in the drying process, the action of the pulsating blade 4 and the lifter 5 as described above unravels the laundry that is biased to the inner peripheral wall surface of the washing and dewatering tub 2 by the final dehydration, and improves the contact with the circulating air. It works to increase the drying efficiency.

  Reference numeral 6 denotes an outer tub containing the washing and dewatering tub 2, and a washing / dehydrating drive device 8 is attached to the outside of the bottom portion via a steel plate mounting base 7. Although not shown in the drawings, the outer tub 6 has four support rods that are suspended from the corner plates provided at the four corners of the upper end portion of the side frame 1 and are suspended from the outer tub 6 via a shock absorber. These four directions are engaged and supported uniformly to be suspended from the central portion of the side frame 1.

  The washing / dehydrating drive device 8 incorporates a washing / dehydrating drive motor using an inverter-driven motor or a reversible rotation type capacitor phase-separated single-phase induction motor, an electromagnetic operation clutch mechanism, and a planetary gear speed reduction mechanism. By controlling the operation clutch mechanism, a washing drive mode in which the pulsation blade 4 is repeatedly rotated forward and backward in a state where the washing and dewatering tub 2 is locked so as to be stationary or released so as to be freely rotatable, It has a drive function for selectively executing a dewatering drive mode in which the water tank 2 and the pulsating blade 4 are integrally rotated in the same direction.

  The upper cover 9 formed with the outer garment insertion port 9a is attached so as to be fitted to the upper opening edge so as to cover the upper opening of the side frame 1 and fixed to the side frame 1 with an attaching screw. The upper cover 9 is configured by combining a plurality of members as necessary. The outer garment insertion port 9 a formed in the upper cover 9 is covered with an outer lid 11 attached to the upper cover 9 by a base hinge 10 so as to be freely opened and closed.

  As shown in FIGS. 9 and 10, the upper cover 9 is not covered by the upper surface of the outer lid 11 and the outer lid 11 when the outer lid 11 falls down and the outer clothing input port 9 a is closed. The outer peripheral edge of the outer garment insertion port 9a with which the front, rear, left and right edges of the outer lid 11 abut is formed as a contact surface 9b so that no step is generated on the upper surfaces of the left and right and rear edges of the upper cover 9. The front side of the contact surface 9b is positioned so as not to be covered by the closed outer lid 11, and has the same width as the contact surface 9b and the front position of the outer frame 1 downward from the contact surface 9b. The switch mounting surface 9c that is tilted up to is formed.

  The outer lid 11 includes a rear half part 11a attached to the upper cover 9 by the base hinge 10 so as to be raised and lowered, and a front half part 11c connected to the front edge of the rear half part 11a so as to be able to bend and stretch by an intermediate hinge 11b.

  As shown in FIG. 11, the front half portion 11c of the outer lid 11 has a handle portion 11d formed by recessing the rear end portion of the front half portion 11c so that a fingertip can be inserted to manually open and close the outer lid 11. And a handle lid 11e that is positioned so as to close the opening of the handle portion 11d and is retreated by pressing with the fingertip so that the fingertip can be inserted into the handle portion 11d, and a front side of the handle portion 11d. An operation display panel unit 12 is provided so as to be arranged in a row.

  The outer lid 11 is inserted into the handle portion 11d and operated to raise / lower the rear end portion of the front half portion 11c so that the rear half portion 11a is raised and lowered with the base hinge 10 as a fulcrum. Then, the front half part 11c is stood up in a mountain fold (open) / flattened flatly (closed).

  Further, the upper panel 9 is provided with an outer lid full-closed detection sensor (described later) for detecting the fully-closed state of the outer lid 11.

  The operation display panel unit 12 is mounted with an instruction input button switch 12a and a display panel 12b, which are positioned on the upper surface of the front half 11c of the outer lid 11 and operated mainly with the outer lid 11 closed. The substrate 12c is mounted inside and mounted. Further, the operation display panel unit 12 positions the display panel 12b so as to be continuous with the front side of the handle portion 11d of the outer lid 11, and positions the instruction input button switch 12a so as to be continuous with the front side of the display panel 12b. Thus, when the instruction input button switch 12a is arranged so as to be far away from the handle portion 11d, it is difficult for the hand to touch the instruction input button switch 12a when the handle portion 11d is grasped by the hand and the outer lid 11 is opened and closed. Configure to be

  A detergent feeder 13 for pouring powder detergent is installed on the left front edge of the abutment surface 9b of the upper cover 9, and a push button type power switch 14 and detergent amount detection are installed on the switch mounting surface 9c. An instruction switch 15 is mounted.

As shown in FIGS. 12 to 14, the detergent thrower 13 opens upward in a powder detergent thrower installation window 9 b ₂ formed at the top of the raised portion 9 b ₁ provided on the contact surface 9 b of the upper cover 9. The inner box 132 as the inner container is detachably fitted into the outer box 131 as the outer container fitted and attached in this manner. Thus mounting the detergent dispenser 13 to open upward on the powder detergent instrument installed windows 9b ₂ which is formed on top of the raised portion 9b ₁ provided on the contact surface 9b of the upper cover 9 constituting a predetermined depth The structure that holds the necessary gap between the outer wall surface of the bottom of the detergent dispenser 13 and the outer tank upper cover (described later) provided at the upper end of the outer tank 6 is ensured. 11 is configured to open and close the opening of the detergent dispenser 13 (specifically described later).

  Although the specific structure of the outer box 131 will be described later, the water supply from the water supply electromagnetic valve is supplied to the fitted inner box 132, and the powder detergent, the finishing agent, and the overflow flowing out from the inner box 132 are received. As shown in FIG. 2, the water is introduced into the outer tub 6 from the detergent introduction port via the detergent introduction tube 17 having the bellows tube 16 interposed therebetween, and when the water level becomes excessive, the overflow pipe 19 having the bellows tube 18 interposed from the overflow port. It functions to overflow into the outer tub 6 via.

  Although the specific structure of the inner box 132 will be described later, a powder detergent charging space portion having an outlet and an overflow port and a finishing agent charging space portion are partitioned and each space portion is received from the outer box 131. The water detergent and the finishing agent poured into the space are poured out from the outlet of the space into the outer box 131, and when the water level becomes excessive, the outer container 131 overflows from the overflow port. Function to prevent leakage to the outside.

  A specific structure of the outer box 131 and the inner box 132 will be described.

As shown in FIGS. 13 to 18, the outer box 131 is a box that opens upward, and includes a detergent introduction port (including a joint) 131 a that connects the detergent introduction pipe 17 to the bottom wall, and the middle stage of the side wall. 1 is provided with a detergent water supply port (including a joint) 131b and a finishing agent water supply port (including a joint) 131c at the site, an overflow port 131d at the upper side of the side wall, and a raised portion 9b ₁ provided on the contact surface 9b of the upper cover 9. constituting upper outer peripheral portion so as to open upward on the detergent unit installed windows 9b ₂ of for installation by fitting the.

  As shown in FIG. 18, the detergent water supply port 131b and the finishing agent water supply port 131c are respectively provided with a detergent water supply electromagnetic valve 48a and a finishing agent water supply in a water supply mechanism 48 described later by a detergent water supply tube 133 and a finishing agent water supply tube 134, respectively. Connect to solenoid valve 48b. The detergent water supply pipe 133 and the finishing agent water supply pipe 134 are arranged on the side of the detergent water supply port 131b and the finishing agent water supply port 131c so that a large amount of residual water does not remain in the interior when the detergent water supply electromagnetic valve 48a and the finishing agent water supply electromagnetic valve 48b are closed. The height positions of the detergent water supply port 131b, the finishing agent water supply port 131c, the detergent water supply electromagnetic valve 48a, and the finishing agent water supply electromagnetic valve 48b are set so that they can be disposed so as to be lowered.

  As shown in FIGS. 12 to 14 and 19, the inner box 132 is an upward-opening box that is fitted into the outer box 131 with a lower space interposed therebetween, and the inside is partitioned by a partition wall 132 a. Thus, a powder detergent charging space 132b and a finishing agent charging space 132c are formed. The powder detergent charging space 132b is provided with a detergent outlet 132d on the bottom wall thereof, and has a horizontally long slit-shaped detergent water supply inlet 132e in contact with and in communication with the detergent water inlet 131b of the outer box 131 at the side wall interruption portion. Provided with an overflow port 132f at the upper side of the side wall. The finishing agent charging space 132b includes a siphon-type finishing agent outlet 132g on the bottom wall thereof, and a finishing agent water supply inlet 132h that is in contact with and communicates with the finishing agent water supply port 131c of the outer box 131 at the side wall interruption portion. And an overflow port 132i in the upper side of the side wall. FIG. 12 shows the siphon type finishing agent outlet 132g with the cap removed.

  In the inner box 132 in the detergent charging device 13, wet air in the outer tub 6 flows back into the inner box 132 from the detergent inlet 131 a and the overflow port 131 d through the detergent inlet pipe 17 and the overflow pipe 19 in the drying process. Therefore, in order to prevent wet air from leaking out from the inner box 132, the opening of the inner box 132 is airtight when the outer lid 11 is tilted inside the outer lid 11 and the outer clothing input port 9a is closed. Provide a detergent feeder lid to close the condition.

The structure of this detergent charging device lid will be described with reference to FIGS. 20 and 21. FIG. This detergent charging device lid portion 20 abuts the opening half of the inner box 132 when the outer lid 11 is closed, inside the front half portion 11c that rises so as to tilt forward and downward when the outer lid 11 is opened. The opening is positioned so that it can be closed in an airtight state, and a detergent feeder lid 20a and a packing 20b are provided. Detergent vessel lid 20a is provided with a condensed water receiving box 20a ₁ which is open towards the inside at the site to be the lower edge portion when erected as the first half portion 11c is tilted forward and downward by opening the outer lid 11 . The condensed water receiving box 20a ₁ is an inner surface of the when the first half portion 11c is erected so as to be inclined forward and downward opening is turned upwards state detergent vessel lid 20a to open the outer garment inlet 9a receiving dew condensation water flowing down along the inner side surface adhered to, the opening is collected in the dew condensation water tray box 20a ₁ becomes directed downward when the front half portion 11c has fallen to close the outer garment inlet 9a The dew condensation water is discharged into the inner box 132.

  A gap between the outer tub 6 and the washing / dehydrating tub 2 is provided by attaching an outer tub upper cover 21 having an inner clothing inlet 21a to the upper opening end of the outer tub 6 containing the washing / dehydrating tub 2. cover. The inner garment insertion port 21 a formed in the outer tub upper cover 21 is configured to be freely opened and closed by an inner lid 23 attached to the outer tub upper cover 21 by a hinge 22.

  The outer tank upper cover 21 and the inner lid 23 will be described in detail with reference to FIGS. 25 to 28 as appropriate. 25 and 26 are views of the outer tub upper cover 21 and the inner lid 23 as viewed from the upper side and the lower side, respectively. FIG. 27 is a side view of the outer tub upper cover 21 and the inner lid 23 with the inner lid 23 closed. FIG. 28 is a sectional view of the outer tub upper cover 21 and the inner lid 23 viewed from the side with the inner lid 23 opened.

  The outer tub upper cover 21 is attached with a blow port 24 penetrating so as to open into the washing and dehydrating tub 2, a connection port 102 of an internal pipe 36 from a washing water circulation pump 32 described later, and a water supply mechanism 48. And a connection port 103 to which a pipe from a washing / water supply electromagnetic valve 48c for controlling the supply of tap water to the washing and dewatering tub 2 is connected, and the water supply port 25 is provided below the hinge 22 (outer tub). It is located on the lower surface side of the upper cover 21, and the detergent charging pipe 17 and the overflow pipe 19 are penetrated so as to open toward the gap between the washing / dehydrating tub 2 and the outer tub 6.

  The inner lid 23 is provided with a watering pipe 26 communicating with the water supply port 25 on the inner side (the lower surface facing the washing and dewatering tub 2). As shown in FIG. 27, the water sprinkling pipe 26 is configured to receive water by bringing the water receiving port 26b at the base end into contact with the water supply port 25a in a state where the inner lid 23 is closed. The water port 26 a is opened downward substantially above the center of the washing / dehydrating tub 2 so that the washing water is widely dropped into the washing / dehydrating tub 2. As shown in FIG. 26, when the inner lid 23 is rotated around the hinge 22 and opened, the water receiving port 26b is separated from the water supply port 25a.

  In the connection port 102 to which the internal pipe 36 from the washing water circulation pump 32 is connected and the connection port 103 to which the pipe from the washing water supply electromagnetic valve 48 c is connected, the connection port 103 is provided on the upstream side of the connection port 102. The connection port 102 has a larger passage cross-sectional area than the connection port 103. Accordingly, the washing water circulation pump 32 can be supplied with water at a flow rate higher than that from the washing water supply electromagnetic valve 48c, so that the washing efficiency is improved and the washing time can be shortened.

  The outer tub 6 is formed with an air trap 6a for detecting the water level on the lower side wall thereof, connected to a pressure-sensitive water level detection sensor 28 serving as a water level detection means via an air tube 27, and drained at the bottom. A cum exhaust port 6b is provided.

  The drainage / exhaust port 6 b is connected to each water inlet of the drainage electromagnetic valve 31 and the electrically driven washing water circulation pump 32 via the bellows tube 29 and the internal pipe 30. The drain electromagnetic valve 31 and the washing water circulation pump 32 are installed on a fixing member related to the outer frame 1, the outlet of the drain electromagnetic valve 31 is connected to the external drain hose 33, and the outlet of the washing water circulation pump 32 is The water supply port 25 is connected via an internal pipe 34, a bellows pipe 35 a and an internal pipe 36. A lint filter 37 is detachably installed in the middle of the internal pipe 36. The thread waste filter 37 may be provided immediately before the washing water circulation pump 32 as shown in FIG.

  Here, the drainage / exhaust port 6b, the bellows pipe 29, the internal pipe 30, the lint filter 37, the washing water circulation pump 32, the internal pipes 34 and 36, the bellows pipe 35, the water supply port 25, and the sprinkling pipe 26 are a washing water circulation mechanism. Configure.

  A water-cooled dehumidifying mechanism 38 is installed inside the rear side surface of the outer frame 1. As already known, the basic structure of the water-cooled dehumidifying mechanism 38 is to reduce the relative humidity by sucking the humid air in the outer tub 6 from the drain / exhaust port 6b, heating it after water-cooling and dehumidifying. Thus, a part of the dry air circulation system configured to blow into the washing / dehydrating tub 2 from above the washing / dehydrating tub 2 is configured.

  The water-cooled dehumidifying mechanism 38 includes a water-cooled dehumidifying air passage 40 connected to the drainage / exhaust port 6b through a bellows tube 39. The water-cooled dehumidifying air passage 40 includes a cooling water outflow pipe 41a at the upper end. A water-cooled dehumidifying plate (heat exchange plate) 41 is installed, and a lint filter 42 and an electric blower 43 are installed on the way. The water-cooled dehumidifying plate 41 is formed with a plurality of projections (for example, meandering ribs as described in FIG. 4 of JP-A-2003-62384).

  As shown in FIG. 29, the water-cooled dehumidifying air passage 40 has the water-cooled dehumidifying plate 41 installed in an ascending air passage 40a provided so as to extend upward from the bellows tube 39. A descending air passage 40b that is folded back from the upper end portion of the ascending air passage 40a and extends downward is provided, and the lint filter 42 is detachably installed in the folded portion. A humidity detection sensor (described later) that is sensitive to the humidity of the air flowing in the down air path is installed in the down air path. An intake port of the electric blower 43 is connected to a lower end portion of the descending air passage, and an updraft passage 40c extending upward from the exhaust port of the electric blower 43 is provided.

  The tip of the ascending air passage is connected to the jet port 24 through an air heating pipe 44 and a bellows pipe 45, and a PTC heater 46, which is an electric heater for heating the circulating air, is provided in the air heating pipe 44.

  In FIG. 1, a rear storage portion 9e is formed at the rear portion of the upper cover 9, and the water level detection sensor 28 is installed in the rear storage portion 9e. ) Of the water cooling dehumidifying plate 41 in the water absorption pump (48d in FIG. 29), the detergent water supply port 131b and the finishing agent water supply port 131c provided in the outer box 131 of the detergent charging device 13, the water spray port pipe 26, and the water cooling and dehumidifying mechanism 38. A water supply mechanism 48 such as an electromagnetic valve or a pump for controlling water supply to the cooling water outflow pipe 41a is incorporated. Water supply from the water supply mechanism 48 to the water spray pipe 26 is configured to be performed via the internal pipe 36.

  With reference to FIG. 29, the water supply of a present Example is demonstrated in detail. FIG. 29 is a diagram schematically showing a washing water circulation mechanism and a water-cooling dehumidification mechanism described later. The water supply mechanism 48 includes four solenoid valves 48a, 48b, 48c, and 48e, and 48a and 48b control the supply of tap water to the detergent feeder 13 through the detergent water supply pipe 133 and the finisher water supply pipe 134, respectively. 48c controls the supply of tap water to the water supply unit 100 through the pipe 48g, and 48e controls the supply of tap water to the water cooling / dehumidification mechanism 38, which will be described later, through the pipe 41c. The tap water supplied through 48e flows down from the nozzle of the cooling water outflow pipe 41a while touching the water-cooled dehumidifying plate 41, and water-cooled dehumidification is executed.

  The tap water supplied to the water supply unit 100 is divided into the water supply port 25 side and the piping 41d side as shown by the arrow a. The tap water that has flowed to the water supply port 25 side is supplied to the washing and dehydrating tub 2 from the sprinkling port 26 a, and the tap water that has flowed to the pipe 41 d side flows out from the washing nozzle 41 b and flows down while touching the water-cooled dehumidifying plate 41. The tap water that has flowed out of the washing nozzle 41b wash away the lint attached to the protrusions of the water-cooled dehumidifying plate 41 and the rising air passage 40a during the drying process. When water is supplied to the washing / dehydrating tub 2 through the electromagnetic valve 48c in the washing process, the tap water also flows to the washing nozzle 41b. Therefore, the water-cooled dehumidifying mechanism 38 is washed when the tap water is supplied to the washing / dehydrating tub 2. Become.

  In FIG. 29, reference numeral 48d denotes a water supply source other than tap water, for example, a bath water pump that pumps bath water from a bath tub. When the bath water pump is driven by a control device to be described later, It is led to the water supply unit 100 through the pipe 48h. In the water supply unit 100, the bath water is divided into the water supply port 25 side and the piping 41d side as shown by the arrow b. Bath water that has flowed to the water supply port 25 side is supplied to the washing and dewatering tub 2 from the water sprinkling port 26 a, and bath water that has flowed to the pipe 41 d side flows out from the washing nozzle 41 b and flows down while touching the water-cooled dehumidifying plate 41. The bath water that has flowed out of the washing nozzle 41b wash away the lint attached to the protrusions of the water-cooled dehumidifying plate 41 and the rising air passage 40a during the drying process. When water is supplied to the washing / dehydrating tub 2 through the bath water pump 48d in the washing process, the bath water also flows to the washing nozzle 41b, so that the water-cooled dehumidifying mechanism 38 is cleaned when the bath water is supplied to the washing / dehydrating tub 2. become.

  The water supply unit 100 is formed with a separation wall 101 that separates the flow paths so that bath water pumped by the bath water pump 48d does not flow into the solenoid valve 48c and the piping 48g side.

  In FIG. 29, the yarn waste washed away from the water-cooled dehumidifying plate 41 and the rising air passage 40a by the water supply in the washing process is collected by the yarn waste filter 37 of the washing water circulation mechanism including the washing water circulation pump 32. At this time, it is preferable that the waste thread does not flow into the washing water circulation pump 32 in consideration of the maintenance of the washing water circulation pump 32. In this case, the waste thread filter 37 is connected to the drainage / exhaust port 6b, the washing water circulation pump 32, the water spray pipe 26, the drainage / exhaust port 6b in this order, and the drainage / exhaust port 6b and the washing water circulation pump. 32 is preferably provided. The preferred position of the lint filter 37 is located in the circulation path on the washing water circulation pump 32 side from the branch point where the branch line from the circulation path of the washing water circulation mechanism branches to the drain electromagnetic valve 31 side.

  Alternatively, the flow path structure of the water supply unit 100 may be changed so that all the water supplied from the bath water pump 48d is sent to the cleaning nozzle 41b. In the washing process of this embodiment, the water level is maintained at a level that does not exceed the pulsation blade 4, but since the washing water circulation pump is provided, the washing water may be accumulated at the bottom of the outer tub 6. If the drain electromagnetic valve is closed, the bath water flowing out from the cleaning nozzle 41b is stored in the outer tub 6, so that the bath water can be supplied to the outer tub 6 from the cleaning nozzle 41b. In addition, although the flow rate that can be supplied from the cleaning nozzle 41b is limited, if the water level is as in this embodiment, the water supply time may be short. The same applies to tap water supplied from the electromagnetic valve 48c to the cleaning nozzle 41b. If all the water supply from the bath water pump 48d can be sent to the washing nozzle 41b, the water supply from the bath water pump 48d does not wet the laundry in the washing and dehydrating tank 2 during water cooling and dehumidification, so the bath water is water cooled and dehumidified. It becomes possible to use for. For this purpose, in addition to changing the flow path structure of the water supply unit 100, a new one is provided between the bath water pump 48d and the water spray port 26a, preferably upstream of the water supply port 25, more preferably in the water supply unit 100. The water supply from the bath water pump 48d may be prevented from flowing to the washing / dehydrating tub 2 side during water cooling and dehumidification by providing an electromagnetic valve.

  When water-cooled dehumidification is performed with bath water from the cleaning nozzle 41b, the discharge amount from the cleaning nozzle 41b is less than that for the purpose of supplying water into the washing / dehydrating tub 2 or the outer tub 6 (the momentum to discharge). In order to weaken the power, the power supplied to the bath water pump 48d or the driving voltage may be reduced. If the momentum of the water discharged from the cleaning nozzle 41b is too strong, splashes are wound up by the blown air, and the filter 42 disposed on the upstream side is wetted, and the filter 42 is easily clogged. The water discharged from the cleaning nozzle 41b should flow along the water-cooled dehumidifying plate 41.

  Further, in order to determine the presence or absence of bath water, the current flowing through the bath water pump 48d is detected. The current decreases when the bath water runs out. In order to detect this current, a detection circuit 110 shown in FIG. 22B is provided. The detection value detected by the detection circuit 110 is taken into the microcomputer 49a, and the presence or absence of bath water is determined.

  In this embodiment, when the bath water pump 48d is operated in the water-cooled dehumidifying mode, the drive voltage is reduced. In order to accurately determine the presence / absence of bath water, the drive voltage is increased at predetermined time intervals, and the operation of determining the presence / absence of bath water is repeated in a state where the drive voltage is increased. This determination method for the presence or absence of bath water can also be used for bath water supply at the time of washing. In this case, the bath water pump 48d is driven at a normal drive voltage, and therefore it is not necessary to increase the drive voltage at predetermined time intervals. . Such a determination method can make a determination in a shorter time than a conventional determination method based on a change in water level.

  FIG. 30 shows the configuration of the electric blower 43 provided in the ascending air passage 40a, the descending air passage 40b, the ascending air passage 40c, and the folded portion of the descending air passage 40b and the ascending air passage 40c. Each air passage is arranged along the vertical direction. In this case, in the air passage 40 b and the air passage 40 c in which the electric blower 43 is disposed below, water condensed in these air passages accumulates in the fan case of the electric blower 43. When the electric blower 43 is disposed below the air passage, the lower part of the electric blower 43 is lower than the piping downstream of the drain electromagnetic valve, and drainage becomes difficult. The water accumulated in the fan case wets the dehumidified air, lowers the drying efficiency, and increases the drying time. Therefore, in this embodiment, the electric pump 106 is provided, the pipe 107 from the electric pump 106 is communicated with the lower part (bottom part) of the fan case, and the water pumped up by the electric pump 106 from the lower part of the fan case is drained to the overflow pipe 104 through the pipe 108. To do.

  As shown in FIG. 22, an instruction input button switch 12a provided on the operation display panel unit 12 indicates a course setting switch for setting various washing courses and a start, as shown in FIG. The display panel 12b displays a set washing course, a progress state of each process (processing), and a detected amount of detergent.

  The controller 49 includes a microcomputer 49a, a load drive circuit 49b, an internal power supply circuit 49c, and a power supply self-holding relay 49d. When the power switch 14 is turned on, the internal power supply circuit 49c functions and the microcomputer 49a is activated. The load driving circuit 49b, the power supply self-holding relay 49d, and the display panel 12b are controlled by executing the control processing program. The controller 49 is mounted in a space provided in the upper cover 9 or a space provided in the outer frame 1.

  The microcomputer 49 a in the controller 49 is connected to the instruction input button switch 12 a, the detergent amount detection instruction switch 15, the water level detection sensor 28, the humidity detection sensor 50, and the outer lid fully closed detection sensor 51 mounted on the operation display panel unit 12. Then, the signals from these are inputted, and the load drive circuit 49b is connected to the washing / dehydrating drive motor 8a, the electromagnetic operation clutch mechanism 8b, the drain electromagnetic valve 31, the washing water circulation pump 32, and the electric blower 43 in the washing / dehydrating drive device 8. , The PTC heater 46, the detergent water supply electromagnetic valve 48a, the finishing agent water supply electromagnetic valve 48b, the washing water supply electromagnetic valve 48c, the bath water absorption pump 48d, and the cooling water supply electromagnetic valve 48e in the water supply mechanism 48 are connected to supply power to them. Control.

  Although illustration explanation is omitted, the washing and dehydrating drive motor 8a in this embodiment is an inverter drive motor, and the load drive circuit 49b has a voltage doubler rectification function for generating a DC voltage obtained by boosting the power supply voltage to about 280V, An inverter function for generating an AC voltage to be applied to the washing / dehydrating drive motor 8a and an effective value of the AC voltage applied to the washing / dehydrating drive motor 8a are controlled by pulsing the AC voltage waveform into pulses and controlling the pulse width. An effective value control function is provided.

  In order to wash and dry the laundry in this way, the microcomputer 49a starts when the power switch 14 is pressed and the power is turned on, and the basics of washing and drying as shown in FIGS. The control processing program is configured to be executed.

  In the electric washing machine according to this embodiment, the water level of the washing water and the rinsing water collected at the bottom of the outer tub 6 in the washing process is outside in the washing state in which the washing water is circulated while rotating the pulsating blade 4 forward and backward. It must be avoided that the washing water accumulated at the bottom of the tub 6 rises to a level that exceeds the upper surface of the pulsating blade 4 and immerses the laundry on the pulsating blade 4. However, if the laundry on the pulsating blade 4 includes a large amount of washing water and continues to stop the rotation of the pulsating blade 4 and the circulation of the washing water, the washing water and the washing water circulation system included in the laundry are continued. Since the inner wash water flows down by gravity and accumulates at the bottom of the outer tub 6, the wash water level in such a state is allowed to exceed the upper surface of the pulsating blade 4. Therefore, in this embodiment, the water level h slightly lower than the height of the lower surface of the pulsating blade 4 in the washing and dewatering tub 2 is set as the set water level for the washing water supply control. In the water supply step, a predetermined amount of water is supplied regardless of the amount of laundry, and the powder detergent supplied according to the amount of laundry is dissolved to generate wash water having a high detergent concentration. In the washing step, the washing water having a high concentration of detergent accumulated at the bottom of the outer tub 6 is circulated so as to fall on the laundry while rotating the pulsating blade 4 forward and backward while the washing / dehydrating tub 2 is stationary. Thus, on the pulsating blade 4, the washing containing the washing water having a high detergent concentration is pushed and washed by repeatedly applying an upward component force to the laundry from the inclined surface of the raised portion 4 a of the pulsating blade 4. In the rinsing process, the rinsing water accumulated at the bottom of the outer tub 6 is rotated into the laundry while the pulsation blade 4 is rotated in the forward and reverse directions while the washing and dewatering tub 2 is kept stationary with the same level of rinsing water as in the washing process. By circulating so as to descend, washing is performed by repeatedly applying an upward component force to the laundry containing washing water on the pulsating blade 4 from the inclined surface of the raised portion 4a of the pulsating blade 4. Rinse to push out water. In the drying process, the laundry in the washing and dewatering tub 2 that has been centrifugally dehydrated is agitated by forward and reverse rotation of the pulsating blade 4 to suck out the moist air in the outer tub 6, dewater-cool and dehumidify it, and then heat and wash. Circulate so as to blow into the dehydration tank 2.

Step S101
The power supply self-holding relay 49d is closed to secure the power supply, and the state confirmation and initial setting are performed.

Step S102
The display panel 12b of the operation display panel unit 12 is turned on and a washing course is set according to an instruction input from the instruction input button switch 12a. A reservation course for washing after a predetermined time elapses is also set in this washing course setting. When no instruction is input, the standard washing course or the previous washing course is automatically set.

Step S103
The instruction input signal from the detergent amount detection instruction switch 15 is monitored, and the process branches according to the instruction input. The user opens the outer lid 11 and the inner lid 23 and puts the laundry into the washing and dewatering tub 2, or throws the laundry and throws the powder detergent into the powder detergent throwing space 132 b of the detergent thrower 13. Then, the finishing agent charging space 132c is inserted to close the inner lid 23 and the outer lid 11, and when only the laundry is loaded, the detergent amount detection instruction switch 15 is operated to know an appropriate amount of the detergent to be loaded.

Step S104
When an instruction is input from the detergent amount detection instruction switch 15, a detergent amount detection process is executed. The amount of detergent is detected by rotating the pulsating blade plate 4 when the pulsating blade plate 4 is rotated in one direction with the washing / dehydrating tub 2 stationary in a dry cloth state before supplying the washing water. The laundry dewatering drive motor 8a and the electromagnetic operation clutch mechanism 8b in the laundry dewatering drive device 8 are controlled so as to detect the amount of laundry based on the load amount, and an appropriate amount of detergent (detergent amount) is determined based on the detected amount of cloth. To do so. Specifically, the amount of cloth is detected by detecting the ultimate rotational speed when power is supplied for a predetermined time so as to rotate the laundry dewatering drive motor 8a in the configuration using the inverter drive motor as the laundry dewatering drive motor 8a. In the configuration using the capacitor phase-separation single-phase induction motor as the washing / dehydrating drive motor 8a, detecting the inertial rotational deceleration characteristic after the power is turned off while the washing / dehydrating drive motor 8a is powered up to the saturation rotation speed. To do. A preferable detergent amount is obtained by referring to a preset table of cloth amount and detergent amount. Further, the washing time is obtained and set based on the detection result (cloth amount). When the amount of cloth is not detected, a standard washing time is set.

Step S105
The determined amount of detergent is displayed on the display panel 12b of the operation display panel unit 12. The user operates to close the outer lid 11 after putting the indicated amount of the powder detergent into the powder detergent throwing space 132b of the detergent thrower 13. Part of the powder detergent charged into the powder detergent charging space 132 b falls from the detergent outlet 132 d to the bottom of the outer tub 6 through the detergent inlet 131 a and the detergent inlet tube 17.

Step S106
The process branches after monitoring the instruction input from the start switch in the instruction input button switch 12a of the operation display panel unit 12.

Step S107
When there is an instruction input from the start switch in the instruction input button switch 12a, the water level in the outer tub 6 is confirmed with reference to the water level detection signal output from the water level detection sensor 28, and the process branches. When the water level in the outer tub 6 exceeds the water level obtained by subtracting the water level increase due to the amount of detergent supplied for pouring the detergent powder from the set water level h, the water level is determined to be abnormal. And

Step S108
The drain electromagnetic valve 31 is opened so that the water level in the outer tub 6 is lowered to the normal water level, and the water in the outer tub 6 is drained.

Step S109
If the water level in the outer tub 6 is less than the water level obtained by subtracting the water level increase due to the amount of detergent supplied to pour the powder detergent from the height h of the lower surface of the pulsating blade 4, the water level is set as normal water level. The valve 31 is closed.

Step S110
The process branches after confirming the lid detection signal output from the outer lid full-closed detection sensor 51.

Step S111
When the outer lid 11 is not closed, an alarm recommending that the outer lid 11 be closed is issued.

Step S112
When the outer lid 11 is closed, the detergent water supply solenoid valve 48a is opened, and a predetermined amount of detergent water is supplied to the powder detergent charging space 132b of the detergent charging device 13. In opening the detergent water supply solenoid valve 48a, first, the other water supply solenoid valves (for example, the washing water supply solenoid valve 48c and the cooling water supply solenoid valve 48e) are opened to reduce the tap water pressure at the entrance of the detergent feed solenoid valve 48a. In this way, the flow rate of the detergent water supply into the detergent water supply pipe 133 is suppressed, so that the air in the detergent water supply pipe 133 is pushed out of the detergent water supply inlet 132e by the detergent water supply, and the inside of the powder detergent charging space 132b. Prevent the powder detergent from splashing. In this example, the detergent water supply amount was set to about 10 liters regardless of the detergent amount.

Step S113
The washing / dehydration tank 2 and the pulsation blade 4 are integrally rotated slowly in one direction (about 70 rpm) to agitate the detergent-dissolved water and the powder detergent in the washing / dehydration tank 2 to wash water with high detergent concentration. Run a detergent melt to produce. The detergent concentration of the washing water at this time is about 7 times.

Step S114
Check if the reserved course is set and branch the process.

Step S115
When the reserved course is set, the system waits until the reserved time (time elapses). During this standby, the washing and dewatering tub 2 and the pulsation blade 4 are integrally rotated in one direction at a slow speed (about 70 rpm) for a predetermined time to agitate the washing water in the washing and dewatering tub 2. (Detergent dissolution) is performed to prevent precipitation and solidification of the detergent components.

Step S116
When the reserved course is not set or when the reserved time is reached, the water level in the outer tub 6 is confirmed with reference to the water level detection signal output from the water level detection sensor 28, and the process is branched. When the water level in the outer tub 6 exceeds the height h of the lower surface of the pulsating blade 4, the water level is abnormal, and if it is lower than that, the water level is normal.

Step S117
The drain electromagnetic valve 31 is opened to drain the water in the outer tub 6 so that the water level in the outer tub 6 is not higher than the height h.

Step S118
When the water level in the outer tub 6 is detected to be equal to or lower than the height h of the lower surface of the pulsating blade 4, the drain electromagnetic valve 31 is closed as a normal water level.

Step S119
Perform pre-washing. This pre-washing is performed by intermittently rotating the pulsating blade 4 forward and backward while the washing / dehydrating tub 2 is stationary, and operating the washing water circulation pump 32 during the forward and reverse rotation of the pulsating blade 4. Thus, the washing water at the bottom of the outer tub 6 is sent to the sprinkler 26 and circulated intermittently so as to fall on the laundry, and the water level detection sensor 28 detects during the stop period of the pulsating blade 4 and the washing water circulation pump 32. The laundry is adjusted to the washing water and dispersed on the pulsating blade 4 by repeating the operation of opening the washing water supply electromagnetic valve 48c while referring to the signal and replenishing water so that the water level does not exceed the height h three times. Do as follows.

  The rotational speed of the pulsating blade 4 in this pre-washing is medium speed rotation (about 100 rpm), and the first forward / reverse rotation has a rotation time limit (forward rotation time / stop time / reverse rotation time) of about 0.6. Rotate for 2 seconds, stop for about 0.8 seconds and repeat for about 30 seconds. The second forward / reverse rotation is the rotation time limit (forward / stop time / reverse rotation time) for about 0.6 seconds, about 0.8 Stop for 1 second and repeat for about 1 minute and 30 seconds. The 3rd forward and reverse rotation is repeated for about 3 seconds with rotation time (forward rotation time / stop time / reverse rotation time) rotating for about 2 seconds and stopping for about 1 second. Do.

  Incidentally, the detergent concentration of the washing water generated in this pre-washing step is about twice the standard concentration. Here, the standard concentration is 20 grams of powder detergent / 30 liters of washing water.

Step S120
Perform the main wash. In the main washing, first, the set washing time is corrected and set by detecting the cloth amount in the same manner as described above. Thereafter, the washing water circulating pump 32 is operated while the pulsation blade 4 is rotated forward and backward while the washing / dehydrating tub 2 is stationary, and the washing water collected at the bottom of the outer tub 6 is sprinkled through the sprinkling port 26a of the sprinkling pipe 26. For about 2 minutes to circulate the washing water that falls on the laundry and about 1 minute to rotate the pulsating blade 4 forward and backward with the washing water circulation pump 32 stopped and the circulation of the washing water stopped. Repeatedly unraveling and stirring, and finally, the operation of the washing water circulation pump 32 is stopped and the circulation of the washing water is stopped, and the pulsating blade 4 is rotated in the forward and reverse directions for about 1 minute. Try to end the main wash time. The rotational speed of the forward / reverse rotation of the pulsating blade 4 during the main washing is such that the press-washing stirring is high-speed rotation (about 130 rpm), the disassembling stirring is medium-speed rotation (about 100 rpm), and the forward-reverse rotation time limit (forward rotation). (Time / stop time / reverse rotation time) is set to be longer than the rotation time in the press-washing and stirring, for example, the rotation time in the washing and stirring is about 2.5 seconds. The rotation time is about 3.0 seconds, and the stop time is about 1 second.

Step S121
Perform a shower rinse. In this shower rinsing, first, drainage of washing water and centrifugal dehydration of washing water contained in the laundry are executed. The drainage of the washing water is such that the drainage electromagnetic valve 31 is opened and the washing water in the outer tub 6 flows out from the drainage / exhaust port 6 b to the external drainage hose 33 through the bellows pipe 29, the internal pipe 30 and the drainage solenoid valve 31. Do. Centrifugal dehydration is performed by controlling the washing / dehydrating drive device 8 so that the washing / dehydrating tub 2 and the pulsating blade 4 are integrally rotated at a high speed in one direction. The rotational speed of the washing / dehydrating tub 2 and the pulsating blade 4 at the time of dehydrating the washing water is set in the same manner as the rotational speed (about 1000 rpm) in the final dehydration described later so as to achieve a high dehydration rate (about 60%). For about 2 minutes and 30 seconds. Next, a bath rotary shower rinsing is performed. In this tank rotary shower rinsing, with the drain electromagnetic valve 31 closed, the washing / water supply electromagnetic valve 48c is rotated slowly (35-40 rpm) in one direction integrally with the washing / dehydrating tank 2 and the pulsating blade 4 in one direction. The tap water or bath water absorption pump 48d is opened and the remaining hot water of the bath is discharged from the water spout 26a so as to fall on the laundry on the pulsation blade 4. The amount of rinsing water at this time is about 9 liters. Further, during the rotatory shower rinsing, if necessary, the washing water circulation pump 32 is operated to supply the rinsing water accumulated at the bottom of the outer tub 6 to the sprinkling pipe 26 and squirt from the sprinkling port 26a. Let

Step S122
The first reservoir rinse is performed. In this rinsing, first, the draining electromagnetic valve 31 is opened to drain the rinsing water of the rotatory shower rinsing stored in the bottom of the outer tub 6, and then the washing and dewatering tub 2 and the pulsating blade 4 are integrated in one direction. The rinse water contained in the laundry is centrifuged and dehydrated. The rotational speeds of the washing / dehydrating tub 2 and the pulsating blade 4 at the time of dewatering of the rinsing water are set in the same manner as the rotational speed (about 1000 rpm) in the final dewatering described later so as to realize a high dewatering rate (about 60%). For about 2 minutes and 30 seconds.

  Thereafter, the drain electromagnetic valve 31 is closed and the washing / dehydrating tub 2 and the pulsation blade 4 are integrally rotated slowly in one direction (35-40 rpm) while the washing water supply electromagnetic valve 48c is opened, and tap water is sprinkled. Water is supplied from 26a to the laundry on the pulsating blade 4. The rinsing water supply time at this time is about 30 seconds, and the water supply amount is about 8 liters.

  Next, rinsing water is supplied for about 30 seconds so that the water level at the bottom of the outer tub 6 does not exceed the height h with the rotation of the washing / dehydrating tub 2 and the pulsating blade 4 stopped. The amount of water supply at this time is about 8 liters.

  Next, similarly to the push-washing stirring in the main washing, the washing water circulation pump 32 is operated while rotating the pulsating blade 4 in the forward and reverse directions while the washing and dewatering tub 2 is stationary, and collected at the bottom of the outer tub 6. Rinsing water circulation stirring rinsing is performed in which the rinsing water is circulated so as to fall from the water spout 26a to the laundry on the pulsating blade 4. This rinsing water circulation stirring rinsing is performed for about 30 seconds.

  Next, makeup water for about 15 seconds is used so that the water level does not exceed h while detecting the water level of the rinse water accumulated at the bottom of the outer tub 6 with the rotation of the pulsating blade 4 and the operation of the washing water circulation pump 32 stopped. To do. The amount of makeup water is about 4 liters.

  Next, the washing water circulation pump 32 is operated while the pulsating blade 4 is rotated forward and backward while the washing / dehydrating tub 2 is stationary, and the rinsing water accumulated at the bottom of the outer tub 6 is discharged from the sprinkling port 26a. Rinsing water circulation stirring and rinsing to circulate so as to fall on the upper laundry is performed. This rinsing water circulation stirring rinsing is performed for about 1 minute and 30 seconds.

  Thereafter, the electric circulation pump 32 is stopped to stop the circulation of the rinsing water, and uniform agitation for continuing forward and reverse rotation of the pulsating blade 4 is performed. This homogenization stirring is performed for about 1 minute.

Step S123
A second reservoir rinse is performed. In this second rinsing, the finishing agent water supply solenoid valve 48b is opened and water is supplied to the finishing agent charging space 132c in the detergent charging device 13, whereby the finishing agent in the finishing agent charging space 132c is removed from the outer tub 6. This is performed in the same manner as the first rinsing with the addition of control for introduction to the bottom.

Step S124
Perform final dehydration. In the final dehydration, the washing / dehydrating drive device 8 is operated so that the washing / dehydrating tub 2 and the pulsation blade 4 are integrated and rotated at a high speed of about 1000 rpm in one direction with the drain electromagnetic valve 31 left open. Then, the laundry in the washing and dewatering tub 2 is centrifugally dehydrated. The operation time for the final dehydration is set to a time for obtaining a desired dehydration rate.

Step S125
Perform drying. This drying is performed while the drain electromagnetic valve 31 is kept open, and in the same manner as the washing process, while the washing and dewatering tub 2 is stationary, the pulsating blade 4 is rotated forward and backward, By operating the electric blower 43 provided in the middle, the air in the outer tub 6 is sucked out from the drainage / exhaust port 6b through the bellows tube 39 into the water-cooled dehumidified air passage 40, and the water-cooled dehumidified air passage 40 has a rising air passage 40a. The water-cooled dehumidifying plate 41 installed in the ascending air passage 40a and the cooling water flowing down the surface of the water-cooled dehumidifying plate 41 are touched to cool and dehumidify, and the yarn waste is collected through a lint filter (not shown). The collected air is heated by a PTC heater 46 provided in the air heating pipe 44, then sent to the air outlet 24 through the bellows pipe 45 and blown into the washing / dehydrating tub 2 from the air outlet 24.

  The cooling water supplies the tap water to the cooling water outflow pipe 41a by opening the cooling water supply electromagnetic valve 48e, flows out to the surface of the water cooling / dehumidifying plate 41, and flows down along the surface of the water cooling / dehumidifying plate 41. The cooling water that has flowed down the dehumidifying plate 41 flows out to the external drainage hose 33 through the bellows tube 39, the drainage / exhaust port 6b, the bellows tube 29, the internal pipe 30, and the drainage electromagnetic valve 31, and drains it.

  This drying control is executed while monitoring a detection signal output from the humidity detection sensor 50 that is sensitive to the humidity of the air after water-cooled dehumidification, and ends when the humidity is reduced to a predetermined humidity.

  When the washing water circulation in this electric washing machine is continued by continuously operating the washing water circulation pump 32 for a long time, the yarn waste contained in the washing water accumulates in the circulation water channel and the clogging failure of the circulation water channel ( When the duration exceeds a predetermined time (for example, 1 minute), the operation of the washing water circulation pump 31 is intermittently turned on / off every predetermined time, or a flow sensor is installed in the circulation water channel. A lowering amount of the washing water level at the bottom of the outer tub 6 when the washing water circulation pump 31 is operated by monitoring the flow rate of circulating water or monitoring the water level detection signal output from the water level detection sensor 28 (with a decrease in the flow rate) When the flow rate is reduced to a predetermined value or less, the operation of the washing water circulation pump 31 is controlled to be intermittent (on / off). If the operation of the washing water circulation pump 31 is interrupted during the washing water circulation, the washing water being circulated will flow backward when the washing water is turned off (off), and the washing water will flow forward (circulate) when the operation is continued (on). The washing water that flows is oscillated, and therefore, the lint collected in a part of the circulation channel is shaken and flows out together with the washing water, so that the occurrence of clogging failure can be prevented. In this embodiment, the cycle in the intermittent operation of the washing water circulation pump 32 is configured to repeat about 2 seconds on / 3 seconds off 12 times, and then return to the continuous operation again.

  The electric washing machine configured in this manner basically dissolves the powder detergent by supplying water so that the water level does not exceed the upper surface of the pulsating blade and staying at the bottom of the outer tub in the washing process. To generate wash water with high detergent concentration, and while rotating this wash water with high detergent concentration on the laundry, rotate the pulsating blades forward and backward to repeatedly apply upward force to the laundry and push it. In the washing and rinsing process, as in the washing process, while maintaining the water level not to exceed the upper surface of the pulsation blade, the rinsing water supplied so as to accumulate at the bottom of the outer tub is circulated so as to fall on the laundry. The pulsating blade is rotated forward and backward to repeatedly apply an upward force to the laundry to push out the washing water (detergent component) contained in the laundry, and in the drying process, the pulsating blade is moved forward and backward. Rotate and wash like the washing process The air in the outer tub is sucked out while water-cooled and dehumidified while stirring, and then heated and circulated so as to be blown into the washing / dehydrating tub to dry the laundry, so that high washing efficiency can be obtained with less washing water. And can be efficiently dried.

  Specifically, the following effects can be obtained.

  By rotating the pulsating blade board 4 forward and backward in the washing and drying process, the laundry on the pulsating blade board 4 is rotated against the inner wall surface of the washing and dewatering tub 2 by centrifugal force while rotating together with the pulsating blade board 4. However, since the lifter 5 located on the inner peripheral wall surface of the washing / dehydrating tub 2 acts on the laundry moved along the inner peripheral wall surface of the washing / dehydrating tub 2, the laundry is washed and removed. It is possible to prevent the cloth from being tightly entangled near the inner peripheral wall surface of the water tank 2.

  In particular, in the washing process, the through hole 4 b of the pulsating blade 4 that acts to increase the rotational load torque of the pulsating blade 4 by friction with the laundry is the top of the raised portion 4 a of the pulsating blade 4. Since it is provided so as to be distributed in the region excluding the portion, the rotational load torque acting on the pulsating blade 4 can be reduced, and it can be rotated by the relatively small washing and dehydrating drive motor 8a.

  Further, by rotating the pulsating blade board 4 forward and backward in the washing and drying process, the laundry on the pulsating blade board 4 is pressed against the inner peripheral wall surface of the washing and dewatering tub 2 by centrifugal force while rotating together with the pulsating blade board 4. Since the lifter 5 located on the inner peripheral wall surface of the washing / dehydrating tub 2 acts on the laundry moved along the inner peripheral wall surface of the washing / dehydrating tub 2, the laundry is washed It is possible to prevent the cloth from being strongly entangled near the inner peripheral wall surface of the cum dewatering tank 2.

  In addition, various inclination angles set to preferable values of the raised portion 4a of the pulsating blade 4 and gaps between the lifter and the inner surface of the washing and dewatering tub 2 are such that the laundry is the pulsating blade 4. Biting between the raised portion 4a and the inner peripheral wall surface of the washing and dewatering tub 2 or between the lifter 5 is prevented.

  Further, in the pre-washing which is the initial stage of the washing process, the forward / reverse rotation of the pulsating blade board 4 and the circulation of the washing water, the forward / reverse rotation suspension of the pulsation blade board 4 and the circulation suspension of the washing water are repeated, and the pulsation blade board 4 Since the replenishing water is monitored while monitoring the water level during the forward / reverse rotation stop and the wash water circulation stop period, the fully wet laundry containing a large amount of the wash water is uniformly distributed on the pulsation blade 4. Further, the washing water is contained in the laundry, and the washing water that accumulates at the bottom of the outer tub 6 is insufficient, so that the washing water falling on the laundry on the pulsating blade 4 during washing is reduced. A sufficient amount of washing water can be used so as not to occur.

  In addition, when the washing / dehydrating tub 2 is stationary and the pulsating blade 4 is rotated forward and reverse, the washing water accumulated at the bottom of the outer tub 6 is circulated so as to fall on the laundry. In addition, since the washing water is repeatedly dropped and suspended during the forward / reverse rotation of the pulsating blade 4, the laundry on the pulsating blade 4 is suspended during the washing water landing. It is possible to disperse it on the pulsating blade 4 by reducing the water content and unraveling it, thereby improving the cleaning efficiency.

  Further, when the continuous operation of the washing water circulation pump 32 exceeds a predetermined time (for example, 1 minute) or when the circulation flow rate decreases, the operation of the washing water circulation pump 31 is controlled to be intermittent (on / off). The lint collected in a part of the water channel is shaken and flows out along with the washing water to prevent clogging troubles.

  In addition, the powder detergent and finishing agent are put into the bottom of the outer tub 6 by placing the detergent feeder 13 on the abutting surface 9b located on the front side of the upper cover 9 of the outer frame 1 and throwing it into the detergent container 13. Since the powder detergent and the finishing agent are poured into the bottom of the outer tub 6 by the detergent water and the finishing water supply, the detergent and the finishing agent can be easily introduced and smoothly introduced into the bottom of the outer tub 6. Can do.

  The detergent water supply solenoid valve 48a and the detergent water supply solenoid valve 48b installed in the rear housing part 9e provided at the rear part of the upper cover 9 and the detergent water supply pipe 133 and the finisher water supply pipe 134 connecting the detergent feeder 13 are detergents. Since the water supply solenoid valve 48a and the finishing agent water supply solenoid valve 48b are closed, the detergent water supply port 131b and the finishing agent water supply port 131c are disposed so as to be inclined so as not to remain in the interior. Freezing of residual water in can be prevented.

  In addition, the detergent water supply by the detergent water supply solenoid valve 48a first opens other water supply solenoid valves (for example, the washing water supply solenoid valve 48c and the cooling water supply solenoid valve 48e) to lower the tap water pressure at the entrance of the detergent water supply solenoid valve 48a. Since the flow rate of the detergent water supply into the detergent water supply pipe 133 is suppressed by performing the operation in the wet state, the air in the detergent water supply pipe 133 is strongly pushed out from the detergent water supply introduction 132e by the detergent water supply, and the powder detergent is introduced. It is possible to prevent the powder detergent in the space 132b from being blown off and scattered.

Further, in the drying process, the detergent charging device 13 causes the moist air in the outer tub 6 to flow backward through the detergent introduction path and enter the powder detergent charging space 132b and the finishing agent charging space 132c. Dew condensation occurs by touching the detergent charging device lid 20 provided inside the container. However, the condensed water flows down into the condensed water receiving box 20a ₁ when the outer lid 11 (detergent feeder lid 20) is opened, and is stored when the outer lid 11 (detergent feeder lid 20) is closed. Since it flows down from the inside of the dew condensation water receiving box 20a ₁ into the detergent thrower 13 and flows out into the outer tub 6, the dried laundry in the inner tub 2 is not wetted.

  In addition, the water level in the outer tub 6 is detected prior to the supply of detergent and the start of washing, and when the water level in the outer tub 6 is excessive, the water is drained until a predetermined water level is reached. Various inconveniences can be prevented from occurring.

Further, a detergent feeder 13 for pouring a powder detergent and a finishing agent into the bottom of the outer tub 6 is installed on a raised portion 9b ₁ provided on the contact surface 9b located on the front side of the upper cover 9 of the outer frame 1. Since the inner box 132 is detachably fitted in the outer box 131, the inner box 132 that is contaminated with the powder detergent can be removed and easily cleaned. A laterally long slit-shaped detergent water supply inlet 132e formed at the side wall interruption portion of the powder detergent charging space 132b of the inner box 132 is a wall surface suitable for pouring out the powder detergent in the powder detergent charging space 132b without leaving it. Generates a wide layered water flow along Further, there is no case where water droplets adhering to the upper cover 9 flow into and the powder detergent is deposited.

  In addition, when the reservation course is set, the controller 49 performs control to wait for a predetermined time in a state where the powder detergent put into the detergent feeder 13 is introduced into the bottom of the outer tub 6 and dissolved in the detergent melted water. Therefore, the powder detergent does not adhere to the detergent feeder 13 and solidify during the waiting time. In addition, the powder detergent introduced and dissolved in the bottom of the outer tub 6 rotates the washing and dewatering tub every predetermined time during the waiting time to perform stirring (detergent dissolution), thus preventing precipitation and solidification of the detergent components. Can do.

  The washing function in the present invention can be similarly applied to a washing and dehydrating electric washing machine having no drying function.

It is a schematic diagram of the side surface shown in the state which cut through the electric washing machine of Example 1 of this invention vertically. It is a perspective view of the pulsation blade board in the electric washing machine of Example 1. FIG. 2 is a plan view of a pulsating blade in the electric washing machine of Embodiment 1. FIG. It is IV-IV sectional drawing of the pulsation blade board shown in FIG. It is VV sectional drawing in FIG. It is a perspective view of the lifter in the electric washing machine of Example 1. It is a front view of the lifter shown in FIG. It is a perspective view which sees through a washing and dehydrating tank, and shows the opposing relationship of the pulsation blade board incorporated in the washing and dehydrating tank in the electric washing machine of Example 1 and a lifter. It is an external appearance perspective view which shows the upper part of the electric washing machine of Example 1 in the state which closed the outer cover. It is an external appearance perspective view which shows the upper part of the electric washing machine shown in FIG. 9 in the state which opened the outer cover. It is a vertical side view of the outer lid part in the electric washing machine shown in FIG. It is a perspective view of the detergent thrower part in the electric washing machine shown in FIG. It is a front view which cuts and shows the powder detergent charging space part of the detergent charging device part shown in FIG. It is a perspective view from the back side which shows the finishing agent input space part of the detergent input device part shown in FIG. It is a perspective view of the outer case of the detergent thrower shown in FIG. It is a top view of the outer case of the detergent thrower shown in FIG. It is XVII-XVII sectional drawing of the outer case of the detergent thrower shown in FIG. It is a perspective view which shows the water supply system with respect to the detergent thrower shown in FIG. It is a top view of the inner box of the detergent thrower shown in FIG. It is a vertical side view which shows the part of the detergent insertion device and detergent insertion device lid part in the electric washing machine shown in FIG. 9 and FIG. 10 in the state which closed the outer cover. It is a vertical side view which shows the part of the detergent insertion device and detergent insertion device lid part in the electric washing machine shown in FIG. 9 and FIG. 10 in the state which opened the outer cover. It is a block diagram of the control system of the electric washing machine shown in FIG. It is a flowchart which shows a part of control process which the microcomputer in the controller of the control system shown in FIG. 22 performs. It is a flowchart which shows a part of other control processing which the microcomputer in the controller of the control system shown in FIG. 22 performs. It is the figure which looked at the outer tank upper cover and the inner lid from the upper side and the lower side. It is the figure which looked at the outer tank upper cover and the inner lid from the upper side and the lower side. It is sectional drawing which looked at the outer tank upper cover and the inner lid from the side with the inner lid closed. It is sectional drawing which looked at the outer tank upper cover and the inner lid from the side with the inner lid opened. It is the figure which showed typically the washing water circulation mechanism and the water cooling dehumidification mechanism. It is a figure which shows the air path structure containing the electric blower of a water cooling dehumidification mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Side frame, 2 ... Washing and dewatering tank, 4 ... Pulsating blade 4a ... Raised part, 4b ... Through-hole, 4c ... Outer end face, 5 ... Lifter, 5a ... Swelling part, 5b ... Inclined surface, 5c ... Ridges, 6 ... outer tub, 8 ... laundry dewatering drive device, 8a ... laundry dewatering drive motor, 9 ... upper cover, 9a ... outer garment insertion port, 9e ... rear storage part, 11 ... outer lid, 12 ... operation display panel 12a ... Instruction input button switch, 12b ... Display panel, 13 ... Detergent input device, 131 ... Outer box, 132 ... Inner box, 132b ... Powder detergent input space, 132c ... Finishing agent input space, 132e ... Detergent water supply inlet , 133 ... detergent water supply pipe, 134 ... finish the water supply pipe, 20 ... detergent vessel lid, 20a ... detergent vessel lid, 20a 1 _... condensed water receiving box, 28 ... water level detecting sensor, 31 ... water discharge solenoid valve, 32 ... washing water circulation pump, 37 ... lint filter, DESCRIPTION OF SYMBOLS 8 ... Water cooling dehumidification mechanism, 42 ... Waste thread filter, 43 ... Electric blower, 46 ... PTC heater, 48 ... Water supply mechanism, 48a ... Detergent water supply electromagnetic valve, 48b ... Finishing agent water supply electromagnetic valve, 48c ... Washing water supply electromagnetic valve, 48e ... Cooling water supply solenoid valve, 49 ... Controller, 49a ... Microcomputer, 50 ... Humidity detection sensor.

Claims (1)

A washing and dewatering tub, an outer tub containing the washing and dewatering tub, an actuator for applying mechanical force to the laundry in the washing and dewatering tub, a water supply means for supplying water into the outer tub, and the inside of the outer tub In a washing and drying machine comprising drainage means for draining from water, a water cooling and dehumidifying mechanism for drying the laundry in the washing and dewatering tub, and a water supply pump for pumping water from a water source other than tap water,
The water-cooled dehumidifying mechanism includes a blower, an air passage that blows air with the blower, a heater in the air passage, and a heat exchange plate in the air passage that communicates with the bottom of the outer tub at a lower portion in the vertical direction of the air passage. A first discharge port for discharging water to the upper part of the heat exchange plate, and a second discharge port for supplying water from the water supply pump and cleaning the water-cooled dehumidification mechanism ,
Driving the water supply pump in the drying process so that water flows from the second discharge port to the heat exchange plate;
The water supply pump is driven at the time of water supply into the outer tub in the washing process and at the time of water cooling and dehumidification in the drying process, and the driving voltage at the time of water cooling and dehumidification is lower than the driving voltage at the time of water supply to the outer tub in the washing process A washing / drying machine characterized by being driven by a driving voltage .

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