JP2005304661A - Electric washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce entanglement of a cloth and a rotating load torque due to the rotation of a pulsator. <P>SOLUTION: This washing machine accumulates wash water in the bottom of an outer tub 6 till such a level as non-exceeding the height of the pulsator 4, normally/inversely rotates the pulsator having a protrusion part 4a and through holes 4b formed by avoiding the crest part of the protrusion part, and executes the washing of circulating the wash water to sprinkle it on laundry while repeatedly applying an upward component force to the laundry. The internal circumferential wall surface of a washing and spin-drying tub 2 is provided with a plurality of inclined surface 5b positioned in a height of facing to the pulsator, formed of a swelling part 5a, and inclinedly extending to become sequentially higher in the circumferential direction; and a projecting strip 5c vertically extending from the crest part of the inclined face. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric washing machine.

  A general agitating type electric washing machine is provided with an outer frame, an outer tub for storing washing water provided to be suspended in the outer frame via a vibration isolating mechanism, and a rotatable in the outer tub. An inner tub that is a vertical washing and dewatering tub; a rotary blade that is positioned rotatably at the bottom of the inner tub; and a drive mechanism that selectively rotates the inner tub and / or the rotary wing. , A detergent dispenser with a finishing agent charging function, a water supply mechanism for supplying washing water into the outer tub or the inner tub, and a detergent pouring water into the detergent charging device, and draining the washing water in the outer tub. Washing water level detecting means for detecting the level of washing water in the outer tub, and washing that circulates the washing water accumulated at the bottom of the outer tub so as to descend from the upper side of the inner tub into the inner tub A controller for controlling the water circulation mechanism, the drive mechanism, the water supply mechanism, the drainage mechanism, and the washing water circulation mechanism; Obtain.

  The electric washing machine with a drying function (washing / drying machine), after sucking out the moist air in the outer tub from the bottom of the outer tub, cooling and dehumidifying the electric washing machine as described above, It is the structure which attached the dry air circulation system which heats and blows into a washing and dehydration tank.

  In general, a preferable amount of washing water in such a stirring type electric washing machine is automatically set according to the amount of laundry. When washing laundry of a standard cloth amount (6 kg) in a general electric washing machine of stirring type, the amount of washing water is about 60 liters, and the laundry is in a form of floating in the washing water. The laundry and washing water are agitated and washed.

  On the other hand, washing in an electric washing machine (washing / drying machine) can reduce the mechanical force that acts on the laundry by effectively utilizing the chemical washing power of the detergent. The preferred detergent concentration when the detergent solution is immersed in the laundry to effectively utilize the chemical cleaning power of the detergent is about 5 to 30 times when the preferred detergent concentration of washing water is 1. In order to generate such a high-concentration detergent liquid and hang it on the laundry, a high-concentration detergent liquid production and supply device that dissolves and hangs the powder detergent is added.

  This high-concentration detergent liquid production supply device dissolves powder detergent in powder detergent-dissolved water to produce an ultra-high-concentration detergent liquid approximately 100 to 200 times, and dilutes the ultra-high-concentration detergent liquid to a moderately high concentration. It is configured to fall on the laundry while being diluted with a concentrated detergent solution.

  By the way, in the subsequent washing, since the washing water is supplied, the detergent concentration of the washing water becomes a standard concentration (a ratio of 20 grams of powder detergent / 30 liters of washing water).

JP 2002-282777 A High concentration detergent liquid soaking JP, 2002-360966, A Drying control of a washing dryer JP, 2002-360981, A Detergent dissolving device of a washing machine JP, 2002-360990, A Air passage structure of a washing dryer

  In this way, the agitating type electric washing machine consumes a large amount of washing water, and a special high-concentration detergent liquid production and supply device can be added to effectively use the chemical cleaning power of the detergent. I need it. For this reason, it is desired to realize an electric washing machine having a relatively simple configuration that can obtain a high detergency with a small amount of washing water.

  And the washing method which obtains high detergency with little washing water is a push-washing method, and the washing method by a drum type washing machine corresponds. However, a drum-type washing machine in which a washing tub (drum = inner tub) is installed on the horizontal axis and rotated has a problem that a vibration-proof mechanism and a waterproof mechanism are complicated.

  As an electric washing machine capable of solving such a problem and executing the push-washing method, the component force in the upward direction is repeatedly applied to the laundry by rotating instead of the rotary blade in the stirring type electric washing machine. A pulsating blade with a plurality of ridges providing a gentle slope is installed, and the washing water stored in the outer tub is kept at a lower level than the pulsating blade, and the washing water collected at the bottom of the outer tub is stored. A structure in which washing is performed by repeatedly applying an upward component force to the laundry on the pulsating blade board by rotating the pulsating blade board forward and backward while circulating so as to descend into the inner tank from above the inner tank. An improved electric washing machine can be proposed.

  However, such an improved electric washing machine rotates the pulsating blades with the laundry wet with a large amount of the washing water put down on the pulsating blades being directly put on the pulsating blades. The object rotates with the pulsating blade, generates centrifugal force, moves so as to be pressed against the inner peripheral wall surface of the inner tank, and is biased near the inner peripheral wall surface of the inner tank. In the state where the laundry is biased near the inner peripheral wall surface of the inner tub, the upward component force acting on the laundry from the raised portion of the rotating pulsating blade is reduced, so that the cleaning efficiency is lowered. In addition, the rotational force of the pulsating blade that strongly acts on the inner part of the laundry acts to round the laundry, resulting in a strong fabric entanglement.

  Further, since the pulsation blade plate directly touches the wet laundry containing a large amount of washing water, the rotational load torque is increased. The pulsating blade plate includes a plurality of through holes for allowing washing water to pass therethrough, and the frictional resistance caused by friction between the edge of the through hole and the laundry increases the rotational load torque of the pulsating blade plate. In particular, the frictional resistance between the pulsating blade and the laundry is strongly generated in a region near the top of the raised portion provided on the pulsating blade.

  If the rotational load torque of the pulsating blade plate is large, the output torque of the drive motor that rotationally drives the pulsating blade plate must be increased, resulting in a problem that the drive motor becomes large.

  One object of the present invention is to reduce the fact that the laundry on the pulsating blade board is entangled near the inner wall surface of the inner tub due to the rotation of the pulsating blade board.

  Another object of the present invention is to enable rotational drive by a relatively small drive motor by reducing rotational load torque acting on a pulsating blade.

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 the wash water stays at the bottom of the outer tub while maintaining a water level that does not exceed the pulsating blade,
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,
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. And a plurality of inclined surfaces extending in a slanted manner, and a ridge 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 peripheral direction to the inner peripheral wall surface And

  In addition, the pulsating blade plate includes a large number of through holes that are distributed in a region excluding the top portion of the raised portion.

  In addition, an air circulation system that sucks out the air in the outer tub and dehydrates it with water and then heats it and blows it into the inner tub and circulates it, and dries the laundry by circulating the air while rotating the pulsating blades. The process is configured to be executed.

  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 exceeding the upper surface of the pulsating 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. A high washing efficiency can be obtained with a small amount of washing water by rotating the pulsating blades forward and backward to repeatedly apply an upward force to the laundry and pushing out the washing water (detergent component) contained in the laundry. Can do.

  In the washing process and the drying process, by rotating the pulsating blade forward and reverse, the laundry on the pulsating blade is rotated against the inner peripheral wall surface of the inner tub by centrifugal force while rotating together with the pulsating blade. Although the lifter located on the inner peripheral wall surface of the inner tub acts on the laundry moved along the inner peripheral wall surface of the inner tub, the laundry is biased and stiff near the inner peripheral wall surface of the inner tub. It is possible to prevent the fabric from being entangled.

  Further, in particular, in the washing process, the through hole of the pulsating blade plate that acts to increase the rotational load torque of the pulsating blade plate by friction with the laundry is in a region excluding the top portion of the raised portion of the pulsating blade plate. Since they are provided so as to be distributed, it is possible to reduce the rotational load torque acting on the pulsating blades and to drive the rotation by a relatively small washing / dehydrating drive motor.

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 the wash water stays at the bottom of the outer tub while maintaining a water level that does not exceed the pulsating blade,
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 exceeding the upper 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 that does not exceed the top surface of the pulsation blade board or a level that slightly exceeds the upper surface is maintained, and water is supplied so as to accumulate at the bottom of the outer tank, and the powder detergent is dissolved to dissolve the powder detergent. Generate wash water with high detergent concentration at the bottom, and press and wash by rotating the pulsating blades forward and backward and repeatedly applying upward force to the laundry while circulating the wash water so that it falls on the laundry. . Here, the washing water when the amount of clothes in the laundry is within the normal range is set to a level that does not exceed the upper surface of the pulsation blade, and the washing water when the amount of laundry is less than the normal range is slightly or slightly. Let the water level exceed.

  In the rinsing process, as in the washing process, the water level that does not exceed or slightly exceeds the upper surface of the pulsating blade is maintained, and the rinsing water that is supplied so as to accumulate at the bottom of the outer tub is circulated so as to fall on the laundry. Then, the pulsation blade is rotated forward and backward to repeatedly apply an upward force to the laundry, thereby rinsing the washing water (detergent component) contained in 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.

As shown in FIGS. 2 to 5, the pulsating blade 4 is put into the washing / dehydrating tub 2 by rotating at the top of the pulsating blade 4 at the bottom of the washing / dehydrating tub 2 to be pulsated. 4. Raised portions 4a that form a plurality of inclined surfaces that are gently inclined in the rotational direction so as to generate push-washing force that repeatedly applies upward force to the laundry that is on top, and a number 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 θ ₁ of the gentle inclined surface in the rotation direction forming the raised portion 4a. is is preferably set to be 20 to 30 degrees relative to the horizontal plane, the inclination angle theta ₂ in the radial direction, it is desirable that 10 to 20 degrees relative to the horizontal plane, the inclination angle theta ₃ of the outer peripheral edge surface 4c is vertical It is desirable that the angle is 7 to 15 degrees with respect to the surface. Further, the through holes 4b through which the washing water is passed are provided in a distributed manner in a region excluding the region of the top portion of the raised portion 4a.

  When the pulsating blade 4 rotates, the laundry on the pulsating blade 4 rotates in the rotational direction of the pulsating blade 4 while sliding on the pulsating blade 4, and is pushed by the raised portion 4a and vibrates in the vertical direction. To do. This slip forms a water film between the laundry and the pulsating blade 4. The thickness of the water film affects the rotational load torque that acts on the pulsating blade 4 from the laundry. The thinner the water film, the greater the rotational load torque. The thickness of the water film decreases as the number of through holes 4b increases. On the other hand, the force that pushes up the laundry is maximized in the top region of the raised portion 4a, so that the thickness of the partial water film greatly affects the rotational load torque acting on the pulsating blade 4. To do. That is, as in this embodiment, when there is no through hole 4a in the top region of the raised portion 4a, a thick water film is formed in the top region, so that the rotation that acts on the pulsating blade 4 from the laundry is performed. Load torque is reduced. In addition, since the direct sliding between the pulsating blade 4 and the laundry does not easily occur, the occurrence of damage to the laundry is reduced.

  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 located at a height facing the pulsating blade 4 and projecting in an arc 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 inner peripheral wall surface, and a form that bulges from the top of the inclined surface 5b in the circumferential direction to the inside of the inner peripheral wall surface And a protrusion 5c extending in the vertical direction (upward) along the inner peripheral wall surface. The inclined surface 5b has a height and inclination similar to the height and inclination angle of the inclined surface that is gentle in the rotational direction in which the raised portion 4a of the pulsating blade 4 is formed. The protruding height (thickness) of the protrusion 5c is substantially the same as the protruding portion 5a of the lifter 5, and is desirably 10 to 15 mm. If the protruding height of the protrusion 5c is excessive, the action of suppressing the movement of the laundry in the circumferential direction accompanying the rotation of the pulsating blade 4 is excessive in the washing process, and the washing is adversely affected. 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.

  These values are suitable for improving the efficiency of washing and drying of the laundry and preventing the laundry from being caught (described later). In other words, it is more advantageous for washing and drying that the top of the raised portion 4a of the pulsating blade 4 is positioned outside, which is advantageous for washing and drying. The gap with the dehydration tank 2 becomes small, and the laundry becomes easy to bite.

  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. This reduces the phenomenon that the power is reduced and the washing efficiency is lowered, and the tangling of the laundry is also reduced. Furthermore, an appropriate inclination angle θ ₃ of the outer peripheral end surface 4 c of the raised portion 4 a of the pulsating blade 4 is provided, the outer peripheral end surface 4 c of the pulsating blade 4, the bulging portion 5 a of the lifter 5, and the washing / dehydrating tub 2. A proper space between the inner peripheral wall surfaces of the lifter 5 is secured, and the laundry bulges when entering the gap between the bulged portion 5a of the lifter 5 and the outer peripheral end surface 4c of the raised portion 4a of the pulsating blade 4 The inclined surface 5b of the portion 5a acts to push the laundry upward, so that the laundry is caught in the gap and the pulsating blade 4 cannot be rotated, or the laundry is damaged by the biting. This can also be prevented. Further, the inner peripheral wall surface of the bulging portion 5 a of the lifter 5 is a cylindrical curved surface, and the gap between the outer peripheral end surface 4 c of the raised portion 4 a of the pulsating blade 4 and the bulging portion 5 a of the lifter 5 is circular. Since it is constant in the circumferential direction, even if the laundry enters the gap, it does not pass through the gap and bite into the gap.

  In the drying process, the pulsating blade 4 and the lifter 5 unravel the laundry that is biased to the inner peripheral wall surface of the washing and dewatering tub 2 by the final dehydration, and the upward movement of the laundry by the inclined surface 5 b of the lifter 5. The protrusion 5c suppresses the movement of the laundry in the rotation direction (circumferential direction), promotes the replacement of the laundry, improves the contact between the circulating air and the laundry, and increases the drying efficiency. To do.

  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 and rear left and right edges of the outer lid 11 abut is formed as a step 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 step surface 9b is positioned so as not to be covered by the closed outer lid 11, and has the same width as the step surface 9b and is inclined downward from the step surface 9b to the front position of the outer frame 1. The switch mounting surface 9c 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

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

As shown in FIGS. 12 to 14, the detergent dispenser 13 opens upward in a powder detergent dispenser installation window 9 b ₂ formed at the top of the raised portion 9 b ₁ provided on the step surface 9 b of the upper cover 9. The inner box 132 that is the inner container is detachably fitted to the outer box 131 that is the outer container that is fitted and attached to the outer container. 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 stepped surface 9b of the upper cover 9 constituting a predetermined depth To secure a 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, and the outer lid 11. It is easy to configure so as 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. The detergent and finishing agent flowing out from the detergent introduction pipe 17 travels along the inner wall surface of the outer tub 6 together with the detergent water supply or the finishing agent water supply, or through the gap between the outer tub 6 and the washing and dewatering tub 2. Therefore, the laundry in the washing / dehydrating tub 2 does not fall directly on the laundry. For this reason, high-concentration detergents and finishes do not adhere to the laundry and cause uneven color or discoloration of the laundry.

  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. Water is poured into the outer space 131 from the outlet of the space to remove the powder detergent and finishing agent poured into the space, and when the water level becomes excessive, the water is allowed to overflow into the outer case 131 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. A detergent water supply port (including a joint) 131b and a finisher water supply port (including a joint) 131c are provided at the site, an overflow port 131d is provided at the upper side of the side wall, and the raised portion 9b ₁ provided on the step surface 9b of the upper cover 9 is provided. by fitting the upper outer peripheral portion so as to open upward on the detergent unit installed windows 9b ₂ configured to install. The bottom wall of the outer box 131 is formed in a mortar shape so that the opening of the detergent inlet 131a is the lowest.

  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, 19, and 20, 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. The powder detergent input space part 132b and the finishing agent input space part 132c are formed by partitioning. The powder detergent charging space 132b has a detergent outlet 132d on the bottom wall thereof, a rectifying chamber 132j in contact with and communicated with the detergent water supply port 131b of the outer box 131 in the middle wall portion of the side wall, and overflow on the upper side wall portion of the side wall. A mouth 132f is provided. The the detergent outlet port in 132d, the ribs 132d ₁ for foreign substances fall prevention of crosslinking in the diameter direction. The rectifying chamber 132j is provided with a horizontally-long slit-shaped detergent water supply inlet 132e on a surface facing the contact surface with the detergent water supply port 131b. The detergent water supply inlet 132e opens downward on the inner side of the side wall of the powder detergent charging space 132b, and its lateral width extends over substantially the entire area excluding the corner arc portion from the width in the front-rear direction of the powder detergent charging space 132b. Yes. Then, the detergent water inlet 132e is provided with a notch 132e ₁ at both ends thereof. Moreover, the side wall inner surface 132k facing the detergent water supply inlet 132e in the powder detergent charging space 132b is formed on an inclined surface. The side wall inner surface 132k is a portion that is far away from the detergent water supply inlet 132e, so that the water flow is weak and the powder detergent is likely to remain. Since it becomes difficult to accumulate in a part and the amount of detergent in the part decreases, it is possible to prevent the remaining detergent.

The flow of the detergent supply water in the powder detergent charging space 132b will be described with reference to FIGS. The detergent water flowing into the rectifying chamber 132j from the detergent water supply port 131b spreads over the entire area of the rectifying chamber 132j, and the flow direction is changed downward by the arc-shaped ceiling wall surface of the rectifying chamber 132j. It flows out as a downward film-like water flow along the inner wall surface of the input space 132. And it becomes the flow of the substantially uniform flow velocity spreading over the whole bottom wall of the powder detergent charging space 132b, and the charged powder detergent is pushed efficiently to the detergent outlet 132d. A part of the detergent water flowing along the bottom wall flows out from the detergent outlet 132d, and the rest reaches the middle of the inclined surface 132k, then changes the flow direction along the inclined surface 132k and returns to the bottom wall to return the detergent flow. It flows out from the outlet 132d. Further, the detergent water that has passed through the notches 132e ₁ at both ends of the detergent water supply inlet 132e flows out from the notch 132e _{1 in a} substantially horizontal direction and flows along the left and right side wall surfaces of the detergent water inlet 132e. Wash away the powder detergent adhering to the side wall surface.

  Note that the higher the flow rate of the detergent feed water flowing into the rectifying chamber 132j, the faster the flow rate of the detergent feed water flowing out from the detergent feed water introduction port 132e, thereby improving the efficiency of flushing the powder detergent. For this purpose, the outlet area of the detergent water supply port 131b may be reduced. However, if the outlet area of the detergent water supply port 131b is reduced, when the user forgets to attach the inner box 132, the detergent water jetted from the detergent water supply port 131b may be scattered outside the outer box 131. Therefore, in this embodiment, the outlet area of the detergent water supply port 131b is not reduced, and the outlet area of the detergent water supply port 131b can be reduced when the inner box 132 is fitted to the outer box 131. A diaphragm plate 132m that closes a part of the detergent water supply port 131b is provided adjacent to the nozzle. With this configuration, when the user forgets to attach the inner box 132, the outlet area of the detergent water supply port 131b is not restricted and the detergent water supply is not scattered.

  The finishing agent charging space 132c has a siphon type finishing agent outlet 132g on the bottom wall thereof, and a finishing agent feed water inlet 132h that is in contact with and communicates with the finishing agent feed port 131c of the outer box 131 at the middle portion of the side wall. And an overflow port 132i in the upper side of the side wall. Further, when the overflow port 132i is clogged, an overflow weir 132n for escaping the finishing agent feed water in the finish agent charging space 132c to the powder detergent charging space 132b is provided at the upper part of the partition wall 132a (position closer to the overflow port 132i). ). 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. 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 tub upper cover 21 is attached with a blow port 24 penetrating so as to open into the washing and dewatering tub 2, and the water supply port 25 is positioned below the hinge 22 so that the inner clothing input port 21 a The detergent inlet pipe 17 and the overflow pipe 19 are penetrated so as to open toward the center and open toward the gap between the washing / dehydrating tub 2 and the outer tub 6.

  The inner lid 23 includes a watering pipe 26 inside thereof. The water sprinkling pipe 26 opens the water spout 26 a at the tip downward downward substantially above the center of the washing / dehydrating tub 2 with the inner lid 23 closed, so that the washing water falls widely into the washing / dehydrating tub 2. The water receiving port 26b at the base end is in contact with the water supply port 25 to receive water.

  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 and an internal pipe 36. A lint filter 37 is detachably installed in the middle of the internal pipe 36.

  Here, the drainage / exhaust port 6b, the bellows pipe 29, the internal pipe 30, the washing water circulation pump 32, the internal pipes 34 and 36, the bellows pipe 35, the water supply port 25, and the water spray pipe 26 constitute a washing water circulation mechanism.

  A water-cooled dehumidifying mechanism 38 is installed inside the rear side surface of the outer frame 1. As is already known, the basic structure of the water-cooled dehumidifying mechanism 38 is to reduce the relative humidity by sucking the moist air in the outer tub 6 from the drainage / exhaust port 6b and 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 41 is installed, and a lint filter 42 and an electric blower 43 are installed on the way. In the water-cooled dehumidifying air passage 40, the water-cooled dehumidifying plate 41 is installed in an ascending air passage 40a provided so as to extend upward from the bellows tube 39. A descending air passage (not shown) that is folded back from the upper end 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 a rising air passage (not shown) 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.

  A rear housing 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 housing portion 9e. Further, the water inlet 47 from the water supply or a bath water (remaining hot water) water absorption pump ( To the cooling water outflow pipe 41a of the water cooling / dehumidifying plate 41 in the water cooling / dehumidifying mechanism 38 in the water cooling / dehumidifying mechanism 38, the detergent water supply port 131b, the finishing agent water supply port 131c, the water spray port pipe 26, and the water cooling / dehumidifying mechanism 38 A water supply mechanism 48 such as an electromagnetic valve or a pump for controlling the water supply is built in. Water is supplied from the water supply mechanism 48 to the water spray pipe 26 through the internal pipe 36.

  As shown in FIG. 23, the control system constituting the control device of the electric washing machine is such that an instruction input button switch 12a provided on the operation display panel unit 12 instructs a course setting switch for setting various washing courses and a start. The display panel 12b displays the set washing course, the progress of each process (processing), and the 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.

  The microcomputer 49a is activated when the power switch 14 is pressed and the power is turned on, and is configured to execute a basic control processing program for washing and drying as shown in FIGS.

In the electric washing machine of this embodiment, the washing water and rinsing water level accumulated at the bottom of the outer tub 6 in the washing process basically circulates the washing water while rotating the pulsating blade 4 forward and backward. In the washing state, the washing water accumulated at the bottom of the outer tub 6 greatly rises to such a level as to drastically exceed the upper surface of the pulsating blade 4 and soak the laundry on the pulsating blade 4. Must be avoided. However, if the laundry on the pulsating blade board 4 contains a large amount of washing water and the rotation of the pulsating blade board 4 and the circulation of the washing water are stopped for a long time, the washing water contained in the laundry and the washing are washed. Since the wash water in the water circulation system 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 board 4. Therefore, in this embodiment, as the set water level for the washing water supply control, in the case of washing a normal amount of laundry, the water level h slightly lower than the height of the lower surface of the pulsating blade 4 in the washing / dehydrating tub 2 _{In the case} of washing laundry with an extremely small amount of cloth that is less than the normal amount of cloth, the level of the pulsating blade 4 in the washing / dehydrating tub 2 is slightly higher than the water level h ₁ (about 10 cm). It was set approximately equal level) h ₂ in the highest part of the top of the part 4c. In the water supply step, a predetermined amount of water is supplied to dissolve the powder detergent added according to the amount of laundry 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, Circulate so as to blow into the dehydration tank 2.

  The pulsating blade 4 of this embodiment generates a cleaning force by rotating the raised portion 4a and moving the surface up and down repeatedly to vibrate the laundry. Specifically, the laundry is washed by moving so as to vibrate in the vertical direction and the circumferential direction while sliding on the pulsating blade 4.

  The movement and washing action of the laundry in the washing process will be described with reference to the schematic diagrams of FIGS. FIG. 26 shows the vertical movement of the laundry 60 at each position in the circumferential direction on the pulsating blade board 4 by deploying the pulsating blade board 4 in the circumferential direction. This shows the circumferential movement of the laundry 60 on the pulsating blade 4 when the board 4 is viewed from above. The principle of the movement of the laundry 60 and the generation of cleaning power at each position is as follows.

(1) The part which goes up the inclined surface of the circumferential direction of the protruding part 4a (position of (a) in FIG. 26)
By repeatedly pushing up the laundry 60a from the bottom by the upward slope of the raised portion 4a, the laundry 60a is repeatedly compressed to generate a washing force of a push-washing action.

(2) A portion beyond the apex of the raised portion 4a (position (b) in FIG. 26)
The laundry 60b pushed upward by the upward slope of the raised portion 4a jumps up at a position beyond the raised portion 4a, and a gap is generated between the raised portion 4a. At this time, the speed in the circumferential direction increases, and a gap is generated between the laundry adjacent in the circumferential direction (between the laundry 60a and the laundry 60b and between the laundry 60d and the laundry 60e). Wash water having a high detergent concentration that descends from above penetrates into the gaps and effectively penetrates into the laundry 60. Therefore, even if the water level that does not exceed the upper surface of the pulsating blade 4 is maintained, the washing water reaches the entire laundry 60.

(3) The part from the part which goes down the inclined surface of the protruding part 4a to the trough part 4d (position (c) in FIG. 26)
The laundry 60c bounced up in the raised portion 4a falls to the position of the valley portion 4d from the descending slope of the raised portion 4a, thereby generating a washing force for pushing and tapping. At this time, a collision with the adjacent laundry 60d having a slow circumferential speed also occurs, and a washing force for pushing and tapping is also generated between the laundry 60 before and after the circumferential direction. Furthermore, the washing water that has permeated into the laundry 60 is pushed out together with the dirt.

(4) The part where the direction of the vertical movement of the laundry 60 is reversed (between (b) and (c) and (c) and (a) in FIG. 26)
The laundry 60b jumped up by the ridge 4a and the falling laundry 60c and the falling laundry 60c and the laundry 60a pushed up are opposite in direction of movement, and the laundry is moved in opposite directions with both hands. Detergency is generated by the scouring action that moves in the same way as hand-washing.

  In order to maximize the cleaning action (1) to (4), it is desirable that the rotational speed of the pulsating blade 4 is 130 to 140 rpm in the desirable dimensions of the pulsating blade 4. . When the rotational speed is slower than this, the movement of the laundry 60 becomes small and the cleaning action is reduced. If the rotational speed is faster than this, the laundry 60 cannot follow the vertical movement of the surface of the pulsating blade 4 and the movement of the laundry 60 becomes small, and the cleaning action is reduced.

  In this way, the washing performed by circulating the washing water having a high detergent concentration while rotating the pulsating blade 4 is combined with three actions of pressing washing, tapping washing and scouring washing at the same time with very little washing water. Demonstrates high detergency.

  Such a movement of the laundry 60 by the pulsating blade 4 is also suitable in the rinsing process. The gap between the laundry generated when the laundry is splashed up easily allows the rinsing water to infiltrate and permeate into the laundry 60, so that the washing water and the detergent component that has soaked into the laundry 60 are the same. The rinsing efficiency is increased by extruding with a gentle action.

  Moreover, it is suitable also in a drying process. Since warm air enters the gap between the laundry that is generated when the laundry is splashed up, the hot air spreads not only on the outer peripheral surface of the laundry but also inside the laundry to promote moisture evaporation and drying. Increase efficiency. Furthermore, the movement of laundry with less fabric entanglement achieves drying with less wrinkles.

  Control processing executed by the microcomputer 49a to realize such washing and drying will be described with reference to FIGS. 24 and 25. FIG.

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, the amount of detergent is obtained by detecting the amount of cloth, and further, a process for setting the amount of washing water (water level) is executed. This detection of the amount of cloth acts on the pulsating blade plate 4 when the pulsating blade plate 4 is rotated in one direction with the washing and dewatering tub 2 stationary in the dry cloth state before supplying the washing water. The laundry dewatering drive motor 8a and the electromagnetically operated clutch mechanism 8b in the laundry dewatering drive device 8 are controlled so as to detect the amount of laundry based on the rotational load. The amount of detergent is calculated by obtaining an appropriate amount of detergent (detergent amount) based on the detected cloth amount. The preferred detergent amount is determined by referring to a preset table of cloth amount and detergent amount. 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. Do by.
The washing water amount (water level h ₁ ) is set so that the water level does not exceed the pulsating blades 4 and accumulates at the bottom of the outer tub 6 when the cloth amount is within the predetermined range (appropriate amount) of the cloth amount. When the amount is less than the predetermined cloth amount range, the washing water amount (water level h ₂ ) is set so that the water level slightly exceeding the pulsating blade board 4 is maintained and accumulated at the bottom of the outer tub 6.
Further, the washing time is obtained and set based on the detection result (cloth amount).
When the cloth amount is not detected, a standard value 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 set water level h ₁ , h ₂ exceeding the level obtained by subtracting the water level increase due to the amount of detergent supplied to pour the detergent powder, the water level is regarded as an abnormal water level. When detected, the water level is normal.

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
When the water level in the outer tub 6 is detected to be equal to or lower than the water level obtained by subtracting the water level increase due to the amount of detergent supplied to flow the powder detergent from the set water levels h ₁ and h ₂ , the drain electromagnetic valve 31 is set as a normal water level. close up.

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. This amount of water is sufficient to agitate the water and powder detergent at the bottom of the outer tub 6 at the bottom (outer wall) of the washing and dewatering tub 2 by rotating the washing and dewatering tub 2 in the subsequent detergent dissolving step. It is determined from the amount of water.

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. Here, the standard concentration is a ratio of 20 grams of powder detergent / 30 liters of washing water. In this detergent dissolving step, the laundry is in a dry state, so there is little unbalance due to the bias of the laundry, and the washing and dewatering tub 2 rotates stably. Note that the slow rotation of the washing and dewatering tub 2 for dissolving the detergent may be started in the middle of the detergent water supply in step S112. When the washing / dehydrating tub 2 starts rotating in the middle of the detergent water supply, the time from the addition of the detergent to the dissolution and stirring of the detergent is shortened, and it is possible to prevent undissolved residue even with powder detergent that becomes hard to dissolve when touched with water. .

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 set water levels h ₁ and h ₂ set in accordance with the amount of laundry, the abnormal water level is set.

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 lower than the set water levels h ₁ and h ₂ .

Step S118
When it is detected that the water level in the outer tub 6 has become the set water levels h ₁ and h ₂ or less, the drain electromagnetic valve 31 is closed as a normal water level.

Step S119
The washing and dewatering tub 2 and the pulsating blade 4 are integrally rotated slowly in one direction (35 to 40 rpm), and the washing water supply electromagnetic valve 48c is opened to spray the washing water onto the laundry. Do pre-watering to wet things. This pre-water supply amount is performed until the water level set according to the amount of laundry in step S104. That is, the low water level h ₁ when the amount of laundry is in the normal range, and the high water level h ₂ when it is extremely small. When the preset water levels h ₁ and h ₂ are set in advance, there is no substantial pre-water supply.

  A fluorescent brightening agent contained in a powdered synthetic detergent that causes uneven coloring of clothing made of light-colored natural materials is a kind of dye that is immediately adsorbed when touching laundry. For this reason, the uppermost part of the laundry to which the washing water having a high detergent concentration is directly applied is most likely to adsorb the fluorescent whitening agent. Therefore, when washing water with high detergent concentration is applied to dry laundry, the amount of fluorescent whitening agent adsorbed in the part where the high detergent concentration washing water has flowed a lot during the penetration process of the high detergent concentration washing water Differences occur and color unevenness occurs. On the other hand, if it is separated from the uppermost part of the laundry to some extent, the optical brightener contained in the wash water having a high detergent concentration that permeates is almost lost, and is less susceptible to the influence of the optical brightener. If the laundry is wet by pre-watering, the high concentration detergent water will be more easily penetrated and diffused uniformly in the laundry, so that the fluorescent whitening agent is evenly absorbed in the laundry. The occurrence of uneven color can be prevented.

Step S120
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 washing water is adjusted to the washing water by repeating the operation of opening the detergent water supply solenoid valve 48a and the washing water supply solenoid valve 48c with reference to the signal and supplying water so that the water level does not exceed the set water levels h ₁ and h ₂ three times. Then, it is carried out so as to be distributed on the pulsating blade 4.

  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.

  During the first forward / reverse rotation, washing water having a detergent concentration of about 7 times falls on the laundry and penetrates into the laundry. High cleaning power is obtained because dirt is lifted from the laundry by the action of washing water of this high detergent concentration. By repeating the replenishing water, the detergent concentration of the washing water falling on the laundry decreases, and at the end of the pre-washing, it becomes about twice the standard concentration.

  Also, in the pre-washing, the first forward / reverse rotation time is set to be the shortest at first because the laundry contains only pre-water supply water and many dry parts, and the wash water is circulated. This is to prevent the washing water from being immediately absorbed by the laundry and drastically reducing the amount of washing water at the bottom of the outer tub 6 in a short time and making it impossible to circulate the washing water. In addition, the reason why the rotation period of forward and reverse rotation is short in the first half of the pre-washing is that the wash water that has fallen down can penetrate into the laundry efficiently. Washing water can be included in the whole. Then, the third forward / reverse rotation in which the washing water has spread over substantially the entire laundry can be performed efficiently for a long time with a long rotation time limit, thereby increasing the cleaning power efficiently.

Step S121
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 forward and backward 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 as follows. (Time / stop time / reverse rotation time) is set to be longer than the rotation time in the press washing agitation, for example, the rotation time in the press agitation is about 2.5 seconds. The rotation time is about 3.0 seconds, and the stop time is about 1 second.

Step S122
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 S123
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 set water levels h ₁ and h ₂ while the rotation of the washing / dehydrating tub 2 and the pulsating blade 4 is 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, the water level does not exceed the set water levels h ₁ and h ₂ while detecting the water level of the rinsing water accumulated at the bottom of the outer tub 6 in a state where the rotation of the pulsating blade 4 and the operation of the washing water circulation pump 32 are stopped. Supply water for about 15 seconds. 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 S124
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 S125
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 S126
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 the 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 the 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 as described above basically supplies water so that the water level does not exceed or slightly exceeds the upper surface of the pulsating blade plate and accumulates at the bottom of the outer tub in the washing process. By dissolving the powder detergent, wash water with high detergent concentration is generated, and while rotating the wash water with high detergent concentration so as to fall on the laundry, the pulsating blades are rotated forward and backward to apply upward force to the laundry. In the rinsing process, the rinsing water supplied so that the water level does not exceed or slightly exceeds the upper surface of the pulsation blade blade and is accumulated at the bottom of the outer tub is retained in the rinsing process. The pulsation blades are rotated forward and backward while circulating so as to fall on the laundry, and an upward force is repeatedly applied to the laundry to rinse out the washing water (detergent component) contained in the laundry, and In the drying process, Rotating the rotor blades forward and backward, stirring the laundry in the same manner as the washing process, sucking out the air in the outer tub, water-cooling and dehumidifying it, then heating it and circulating it so that it is blown into the washing and dehydrating tub Since the product is dried, high washing efficiency can be obtained with a small amount of washing water, and drying can be performed efficiently.

  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 tank 2 acts on the laundry moved along the inner peripheral wall surface of the washing / dehydrating tank 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 rotationally driven by the relatively small washing / dehydrating drive motor 8a.

  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. It prevents biting between the raised portion 4a and the inner peripheral wall surface of the washing / dehydrating tub 2 or between the lifter 5.

  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.

In addition, when the amount of laundry cloth is extremely small below a predetermined range (appropriate amount), the amount of washing water (water level h ₂₎ is maintained so that the water level slightly exceeding the pulsating blade 4 is maintained and accumulated at the bottom of the outer tub 6. ) Is set, the wet laundry does not rotate with the pulsating blade 4 in a state where it adheres to the pulsating blade 4, and the pulsating blade 4 is rotated from the raised portion 4a. An upward component force cannot be applied to the laundry, so that the washing efficiency and the rinsing efficiency are not reduced.

  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 failure.

  In addition, the powder detergent and the finishing agent are put into the bottom of the outer tub 6 by placing the detergent thrower 13 on the step surface 9b located on the front side of the upper cover 9 of the outer frame 1 and throwing it into the detergent throwing container 13. Since the powder detergent and the finishing agent are poured into the bottom of the outer tub 6 by the detergent water supply and the finishing agent water supply, it is possible to easily introduce the detergent and the finishing agent and to smoothly introduce the detergent and the finishing agent into the bottom of the outer tub 6. it can.

  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, the detergent feeder 13 for pouring the powder detergent and the finishing agent into the bottom of the outer tub 6 is installed and installed on the raised portion 9b ₁ provided on the step 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. FIG. 20 is a left side view of the inner box of the detergent dispenser shown in FIG. 19. 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. 23 performs. 24 is a flowchart showing another part of the control process executed by the microcomputer in the controller of the control system shown in FIG. It is a schematic diagram which shows the up-down direction movement of the laundry in each position of the circumferential direction on the pulsation blade board by unfolding the pulsation blade board in Example 1. It is a schematic diagram which shows the movement of the circumferential direction of the laundry on this pulsation blade board seeing the pulsation blade board in Example 1 from upper direction.

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, 60 ... Laundry.

Claims (5)

An inner tub which is a washing and dewatering tub provided rotatably in an outer tub for storing washing water, a rotary vane provided rotatably at the bottom of the inner tub, the inner tub and / or the rotation A drive mechanism for selectively rotating the blades, a water supply mechanism for supplying wash water into the outer tub, a drainage mechanism for draining wash water in the outer tub, and a water level of the wash water in the outer tub A water level detecting means for detecting water, a washing water circulation mechanism for circulating the washing water in the outer tub so as to fall into the inner tub from above the inner tub, the drive mechanism, the water supply mechanism, the drainage mechanism, and the washing water circulation In an electric washing machine equipped with a control device for controlling the mechanism,
The control device controls the water supply mechanism so that the wash water stays at the bottom of the outer tub while maintaining a water level that does not exceed the pulsating blade,
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,
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 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. Electric washing machine characterized by   2. The electric washing machine according to claim 1, wherein the pulsating blade includes a plurality of through holes provided in a distributed manner in a region excluding the top portion of the raised portion. An inner tub which is a washing and dewatering tub provided rotatably in an outer tub for storing washing water, a rotary vane provided rotatably at the bottom of the inner tub, the inner tub and / or the rotation A drive mechanism for selectively rotating the blades, a water supply mechanism for supplying wash water into the outer tub, a drainage mechanism for draining wash water in the outer tub, and a water level of the wash water in the outer tub A water level detecting means for detecting water, a washing water circulation mechanism for circulating the washing water in the outer tub so as to fall into the inner tub from above the inner tub, the drive mechanism, the water supply mechanism, the drainage mechanism, and the washing water circulation In an electric washing machine equipped with a control device for controlling the mechanism,
The control device controls the water supply mechanism so that the wash water maintains a water level that does not exceed the pulsating blade and accumulates at the bottom of the outer tub,
The rotating blades are provided in a region excluding a plurality of raised portions that provide a gentle inclined surface that repeatedly applies an upward component force to the laundry on the rotating blades by rotating, and a top portion of the raised portions. Configured as a pulsating blade with many through-holes distributed,
An upward force is applied to the laundry from the pulsating blade board by rotating the pulsating blade board forward and backward while circulating the wash water collected at the bottom of the outer tub so as to fall on the laundry on the pulsating blade board. An electric washing machine characterized in that washing is carried out by repeatedly acting.   4. The inner tank according to claim 3, wherein 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 inward from the inner peripheral wall surface, and is circumferentially along the inner peripheral wall surface. A plurality of inclined surfaces that incline and extend so as to increase sequentially, and a protrusion that extends in the longitudinal direction along the inner peripheral wall surface in a form that bulges from the top portion of the inclined surface in the circumferential direction to the inner peripheral wall surface. Electric washing machine characterized by having a strip. 5. The air circulation system according to claim 1, further comprising an air circulation system that sucks out the air in the outer tank and dehumidifies it by water cooling and blows it into the inner tank for circulation. An electric washing machine configured to execute a drying step of drying laundry by the above.

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