TWI539057B - Washing machine - Google Patents

Description

washing machine

The present invention relates to a washing machine.

Since the inner tank and the outer tank of the washing machine are attached with dirt, in addition to the washing operation, there is a stroke that can be set for the purpose of washing the tank. However, since the medicine for washing is used in the stroke for the purpose of washing the tank, the user must specially operate the stroke of the tank to be cleaned, and the washing operation becomes complicated.

Therefore, there is a washing machine (see Patent Document 1) in which the inner tub is rotated, and the centrifugal water is used to guide the washing water from the lower portion of the outer tub to the upper portion of the outer tub to sprinkle water into the tub. By doing so, the washing water can be flowed to the inner tank which is easy to accumulate dirt and the draft portion above the outer tank, and the accumulation of dirt can be controlled.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] JP-A-2009-178484

However, in the technique described in Patent Document 1, since the rotation direction of the inner groove is a single direction, the bottom surface of the inner groove or the back surface of the rotary blade disposed on the bottom surface of the inner groove may be partially washed due to a complicated shape. The problem arises.

In order to solve the above problems, an object of the present invention is to provide a washing machine in which dirt is less likely to adhere to the bottom surface of the inner tank.

The washing machine of the present invention is provided with: a casing; an outer tank supported in the casing to store water therein; and an inner tank rotatably supported in the outer tank to accommodate the laundry; a bottom surface of the groove, a rotary vane that is rotationally driven; an outer tank outer casing having an opening at a center of the upper portion of the outer tank; and a water supply means for supplying water into the outer tank, and performing a washing step, a washing step, The washing machine in each step of the dehydrating step is characterized in that: the first flow path is provided on the inner circumferential surface of the outer tank, and when the inner tank is rotated forward, the water in the outer tank is rolled An upper portion of the outer tank; a first discharge port, wherein the first discharge port is disposed in the outer tank casing, and the water that is wound up by the first flow path is sprinkled into the outer tank; and the second flow path, the second flow The path is provided on the inner circumferential surface of the outer tank, and when the inner tank is reversed, the water in the outer tank is wound toward the upper portion of the outer tank; and the second discharge port is disposed outside the outer discharge port. Out of the slot The shell sprinkles water that has been wound up by the second flow path into the outer tank, and after the washing step, the inner tank is rotated forward in a state where the water is stored in the outer tank by the water supply means. The water is sprinkled from the first discharge port to the vicinity of the center of the inner tank, and the water sprinkled from the second discharge port is sprinkled with water to the vicinity of the outer circumference of the inner tank.

According to the present invention, it is possible to provide a washing machine in which dirt is less likely to be on the bottom surface of the inner tank.

1A‧‧·Washing and Drying Machine (Washing Machine)

2‧‧‧Shell

6‧‧‧Power button

7‧‧‧Operator panel

7a‧‧‧ operation buttons

7b‧‧‧ display

7a1‧‧‧Automatic slot cleaning button

8‧‧‧Washing and dewatering tank (inner tank)

8a‧‧‧ trough board

8b‧‧‧Rotary Wing

8b1‧‧ inner blade

8c, 80‧‧‧ balance ring

80a‧‧‧Washing Water Storage Department

8e, 8g‧‧‧ cycle path

9‧‧‧ outer trough

9a, 90a‧‧‧ outer casing

10‧‧‧ drive

12‧‧‧Water supply unit (water supply means)

16a, 16b‧‧‧ Waterway

17a, 17b‧‧‧ Waterway

17a1, 17b1‧‧‧ sprinkler

100‧‧‧Control device

Fig. 1 is an external perspective view of a washing machine (washing and drying machine) according to a first embodiment.

Fig. 2 is a schematic view showing the inside of a casing of a washing machine (washing and drying machine) according to the first embodiment.

Fig. 3 is a perspective view showing a water supply unit of a washing machine (washing and drying machine) according to the first embodiment.

Fig. 4 is a perspective view showing a groove and an outer tank casing of the washing machine (washing and drying machine) according to the first embodiment.

Fig. 5 is a plan view showing the washing machine (washing and drying machine) of the first embodiment, with the outer tank casing removed from the casing.

Fig. 6 is a plan view showing the lower surface of the tank casing except the washing machine (washing and drying machine) of the first embodiment.

Fig. 7 is a cross-sectional view of an essential part showing circulating water of a washing machine (washing and drying machine) according to the first embodiment.

Fig. 8 is a view showing a functional configuration of a control device for a washing machine (washing and drying machine) according to the first embodiment.

Fig. 9 is a flow chart showing the operational steps of the washing machine (washing and drying machine) according to the first to third embodiments.

Fig. 10 is a perspective view showing a groove and an outer tank casing of a washing machine (washing and drying machine) according to a second embodiment.

Fig. 11 is a plan view showing the lower surface of a tank casing other than the washing machine (washing and drying machine) of the second embodiment.

Fig. 12 is a cross-sectional view showing the main part of a water supply unit in the upper portion of the fluid balancer of the washing machine (washing and drying machine) according to the third embodiment.

Fig. 13 is a schematic view showing a path from the water supply unit to the washing machine (washing and drying machine) of the washing machine (washing and drying machine) according to the third embodiment.

Hereinafter, the form for carrying out the invention (hereinafter referred to as "embodiment") will be described in detail with reference to the appropriate drawings. The following washing machine is described as an example of a washing and drying machine that can perform washing from laundry to drying.

≪First Embodiment≫

1 is an external view of the washer-dryer 1A, and FIG. 2 is a cross-sectional view showing the internal structure of the washer-dryer 1A. It is a vertical washing and drying machine which is a vertical direction for the rotation axis of the washing and dewatering tank 8. In the washing and drying machine The upper portion of the casing 2 of 1A is provided with an upper casing 2a, and the upper casing 2a is provided with an outer cover 3. The opening portion 2b can be opened by folding the outer lid 3 into a mountain shape while being opened to the rear side, and the laundry (washing material) can be taken out and placed in the washing and dewatering tank 8.

On the inner side (rear side) of the upper casing 2a, a water supply pipe connection port 4 from the faucet and a suction pipe connection port 5 for bathing the remaining water are provided. A power button 6 is provided on the body side of the upper casing 2a, and an operation panel 7 composed of the operation button 7a and the display 7b is provided on the body side of the outer cover 3. The operation button 7a is for performing an operation stroke setting such as washing or drying, and performs setting of an operation content such as washing, washing, or dehydration, and an operation button 7a1 for performing washing of the washing tub is further provided therein.

As shown in Fig. 2, the washer-dryer 1A is provided in the casing 2: a washing and dewatering tank 8, an outer tank 9, a driving device 10, a lotion. The putting device 11 for the softener, the water supply unit 12A, the drying duct 20, and the like.

The laundry and dewatering tank 8 has a bottomed cylindrical shape and has a tank plate 8a formed of a stainless steel plate or the like. A plurality of through holes 8d2 for passing water are provided in the bottom plate 8d of the washing and dewatering tank 8. A plurality of through holes (see FIG. 2, only partially shown) 8a1 for water passage and ventilation are formed in the tank plate 8a. Further, circulation paths 8e, 8g of washing water are provided on the inner peripheral surface of the tank plate 8a. At the lower end of the circulation paths 8e, 8g, there are inlets 8e1, 8g1 of washing water. A sprinkler 8f is provided at the upper end of the circulation path 8e, and a batt filter 8h is provided at the upper end opening of the circulation path 8g. A plurality of radially inner blades 8d1 are provided on the outer peripheral portion of the bottom plate 8d.

Rotary wing is provided on the inner bottom surface of the laundry and dewatering tank 8 8b. On the back surface of the rotary wing 8b, there are a plurality of inner blades 8b1 extending radially from a slightly outer side of the center.

The outer tank 9 has a bottomed cylindrical shape, and includes a washing and dewatering tank 8 coaxially therewith and an outer tank casing 9a at its upper portion. The user of the washer-dryer 1A can take out the clothes from the opening 2b and put them into the washing and dewatering tank 8 by opening the cover member 9c of the outer cover 3 and the outer tank casing 9a.

As shown in Fig. 4, in the groove portion 9d of the outer tub 9, two water passages A16a extending upward from the groove portion 9d in the radial direction at a position of about 180 degrees, and a water passage A16a are formed. It is approximately 90 degrees and faces two water passages B16b extending up and down. Fig. 5 is a plan view showing the outer tank casing 9a, the outer tank 9 and the washing and dewatering tank 8 as seen from above, and Fig. 6 is a plan view of the tank outer casing 9a as seen from below.

The water path A16a and the water path B16b are surrounded by a cylindrical surface 16a1, 16b1, inclined surfaces 16a2, 16b2, and radial wall surfaces 16a3, 16b3, which are approximately concentric with the laundry dewatering tank 8, and are from the tank portion. 9d flies outwards. The inclined surface 16a2 is formed such that the gap between the laundry and dewatering tank 8 is increased toward the right turn direction of the washing and dewatering tank 8, and the inclined surface 16b2 is such that the gap between the laundry and the dewatering tank 8 is oriented. The left turn direction is increased as it is formed.

The casing 2 viewed from above is generally slightly square, so that the water path A16a and the water path B16b are arranged so as to be positioned at the four corners when the outer groove 9 is fixed in the casing 2.

The washing and dewatering tank 8 has a balance ring (also referred to as a fluid balancer) 8c formed of synthetic resin or the like at the upper end edge portion of the tank plate 8a. The balance ring 8c is formed by enclosing a fluid having a large specific gravity in the inside. When the laundry and dewatering tank 8 rotates, when the laundry is biased or the like, the eccentricity is generated, and the movement of the fluid in the balance ring 8c can be used to eliminate the eccentricity. It has the function of maintaining the balance when rotating.

The outer tank casing 9a has a substantially semicircular inlet port 9b and is attached to the upper end edge of the outer tank 9. Further, a cover member 9c that can be opened and closed freely is provided in the input port 9b. A connection port 9e that connects the extension tube 23a is provided on the inner side (rear side) of the outer tank casing 9a.

On the lower surface of the outer tank casing 9a, a water passage 17a is formed at a position opposed to the upper end of the water passage A16a, and a water passage 17b is formed at a position opposed to the upper end of the water passage B16b. The portions provided with the water passages 17a, 17b project upward toward the upper side, and have inclined surfaces 17a2, 17b2 in the circumferential direction on one side, and partition walls 17a3, 17b3 on the opposite sides of the inclined surface. Further, sprinklers 17a1, 17b1 are provided inside the water passages 17a, 17b (on the side of the laundry and dewatering tank).

Once the washing water is present in the outer tank 9 in the laundry, the rotary wing 8b is rotated, and the laundry in the washing and dewatering tank 8 is stirred to perform washing or washing. At the same time, the centrifugal water is generated by the rotation of the inner blade 8b1, and the washing water circulates as shown by the thick arrow of FIG. The washing water at the bottom of the outer tank 9 is sucked into the bottom of the washing and dewatering tank 8 through the through hole 8d2. Then, it is discharged by the centrifugal force of the inner blade 8b1, and enters the circulation paths 8e, 8g from the inflow ports 8e1, 8g1. Laundry entering the circulation path 8e The water flows upward in the circulation path 8e, and is sprinkled from the spout 8f to the laundry in the washing and dewatering tank 8. Further, the washing water that has entered the circulation path 8g flows upward in the circulation path 8g, and the cotton wool is removed by the batt filter 8h, and then flows down into the washing and dewatering tank 8. Then, the washing water in the washing and dewatering tank 8 passes through the plurality of through holes 8a1 and returns to the outer tank 9.

In this way, the washing water can be circulated, and the washing water is sprinkled from the upper part of the washing and dewatering tank 8, so that the amount of washing water can be reduced, and even if the washing material exceeds the surface of the washing water, the washing water can be sprinkled and washed. Therefore, the washing effect can be saved without reducing the washing effect (cleaning power or cleaning effect).

On the other hand, in the laundry, once the rotary wing 8b is integrally rotated with the washing and dewatering tank 8, the washing water between the washing and dewatering tank 8 and the outer tank 9 is caused to flow in the circumferential direction. At the same time, the washing water is squeezed by the centrifugal pump generated by the bottom surface of the washing and dewatering tank 8 or the inner blade 8d1, and is squeezed to the side of the tank plate 9d of the outer tank 9. When the washing and dewatering tank 8 is rotated to the right, the washing water is rotated as shown by the dot lock line T in Fig. 4, and rises along the inner peripheral surface of the groove portion 9d of the outer tub 9. At this time, the water surface of the washing water in the washing and dewatering tank 8 is a mortar shape as shown by a dot lock line in Fig. 7. The degree of rise of the washing water changes depending on the water level at rest or the number of revolutions of the washing and dewatering tank 8, and reaches the upper portion of the outer tank 9 when it reaches a certain number of revolutions or more. A part of the washing water enters the water path A16a, hits the radial direction wall surface 16a3, changes the water flow direction upward, and flows upward in the water path A16a (two-point lock arrow U). Then, as shown by the arrow line U of Figure 7, the water path A16a is entered. The water path 17a of the outer tank casing 9a. Here, the water flow T is merged, and the partition wall 17a3 and the top plate of the flow path 17a (the back surface of the outer tank casing 9c) change the flow direction, and water is sprinkled from the spout 17a1 into the washing and dewatering tank 8. The washing water in the washing and dewatering tank 8 is returned to the outer tank 9 through the plurality of through holes 8a1. Further, although the washing water also flows into the water passage B16b, since it flows along the inclined surface 16b1, it is difficult to generate an upward flow of water.

Once the washing and dewatering tank 8 is rotated to the left, the washing water becomes a flow of water in the opposite direction to the above, and the washing water passes through the water passage B16b, and the water is sprinkled from the sprinkling port 17b1 toward the washing and dewatering tank 8.

In this way, by rotating the washing and dewatering tank 8, the washing water can be sprayed from the upper portion of the washing and dewatering tank 8 even if the water level at rest is low. Although this method can spray the washing water on the laundry, it cannot produce a mechanical action on the laundry, so it is not suitable for washing, but only for washing. That is, since the washing liquid is sprinkled while circulating a small amount of washing water, the lotion can be diluted, so that water can be saved.

Further, a part of the washing water flowing upward above the water path A16a and the water path B16b overflows and flows to the outside of the water path A16a and the water path B16b. Therefore, it is possible to obtain an effect of washing the groove other than the residual dirt.

In the present embodiment, since the inner blade 8d1 is provided on the outer bottom surface portion of the washing and dewatering tank 8, the centrifugal pump action when the washing and dewatering tank 8 is rotated can be enhanced, but the bottom surface of the washing and dewatering tank 8 can also be used. The centrifugal pump is produced, so it is not necessary to set it.

Also, the flow path of the washing water is rolled up (waterway 16a, waterway) 16b) Although it is opened toward the center of the outer tank 9, it is also possible to provide a partition (not shown) which covers at least a part of the flow path and which is a partition between the flow path and the outer groove 9. In this way, the washing water that is rolled up in the flow path is less likely to leak out of the flow path.

Once the washing is repeated, dirt or garbage caused by lotion, water stains, or the like is adhered in the vicinity of the water line of the tank portion 9d of the outer tank 9 or the tank plate 8a of the washing and dewatering tank 8. However, by rotating the washing and dewatering tank 8, the washing water can also flow to the upper portion of the outer tank 9 or the upper portion of the washing and dewatering tank 8, and even to the balance ring 8c, so that the accumulation of dirt or garbage can be prevented.

Further, in order to allow water to flow to the upper end of the washing and dewatering tank 8 or the balance ring 8c, at least one of the washing water sprayed by the sprinkler may hit the upper end of the washing and dewatering tank 8 or the balance ring 8c. As a result, the washing and dewatering tank 8 is rotated by the washing and dewatering tank 8, so that the washing water flows toward the entire circumference. Therefore, it is not necessary to wash the washing and dewatering tank 8 or the balance ring 8c.

The drive unit 10 is disposed at the center of the outer side of the bottom surface of the outer tub 9. The drive unit 10 includes a motor 10a and a clutch mechanism 10b. The rotary shaft 10c of the drive unit 10 is inserted through the outer tub 9 and coupled to the washing and dewatering tank 8 and the rotary vane 8b. The clutch mechanism 10b has a function of transmitting the rotational power of the motor 10a to the washing and dewatering tank 8 and/or the rotating blade 8b. The motor 10a includes a rotation detecting device 28 that is configured to detect the rotating Hall element, a photointerrupter, and the like, and a motor current detecting device 29 that detects a current flowing to the motor 10a.

The input device 11 is tied to the body side of the upper casing 2a. The injection of the lotion or the softener can be carried out between the outer tank 9 and the washing and dewatering tank 8 by means of the inlet pipe 11a.

The water supply unit 12A is provided inside the upper casing 2a. This water supply unit 12A supplies tap water from the water supply pipe connection port 4 to the input device 11 and a water-cooling dehumidification mechanism (not shown) which will be described later. Further, the water supply unit 12A can inject the tap water from the water supply pipe connection port 4 or the bath water from the water suction pipe connection port 5 (refer to FIG. 1) into the outer tank 9 through the water injection pipe 11b. The water supply unit 12A will be described in detail later using FIG.

A drain valve 14 is provided in the recessed portion 9m provided on the bottom surface of the outer tub 9, and is connected to the washing water drain passage 15. The washing water or the washing water can be stored in the outer tank 9 by closing the drain valve 14. Further, by opening the drain valve 14, the water in the outer tank 9 can be discharged to the outside of the washing machine 1A through the washing water drain path 15.

The drying duct 20 is provided on the inner side of the back surface of the casing 2 in the longitudinal direction, and the lower portion of the duct is connected to the recessed portion 9m of the outer tank 9 by a rubber bellows 20a. A water-cooling dehumidifying mechanism (not shown) is housed in the drying duct 20, and the cooling water is supplied from the water supply unit 12A to the water-cooling/dehumidifying mechanism. The cooling water flows through the wall surface of the drying duct 20 (a metal plate made of stainless steel or the like), flows into the recessed portion 9m, passes through the washing water drainage path 15, and is discharged to the outside of the machine.

The outlet of the drying duct 20 is connected to the intake port of the fan 21, and the outlet of the fan 21 is connected to the heater 22. Out of heater 22 The port is connected to the blowing nozzle 24 through the air duct 23 and the rubber bellows 23a.

In this way, in the drying step, the air in the outer tank 9 can be cooled and dehumidified by the drying duct 20, and the heater 22 can be sucked into the suction port of the fan 21, and the air discharged from the fan 21 can be heated. The blowing nozzle 24 blows the high temperature and low humidity wind into the washing and dewatering tank 8.

Further, although not shown, the air supply duct 23 is provided with a temperature sensor that detects the temperature of the wind blown into the washing and dewatering tank 8 during the drying operation, and is provided in the recessed portion 9m of the outer tank 9. a temperature sensor for detecting the temperature of the washing water or the temperature of the air sucked into the drying duct 20 during the drying operation; and at the upper portion of the drain valve 14: detecting the temperature of the washing water or during the drying operation, A temperature sensor for the temperature of the cooling water discharged from the outside of the machine is provided; and an acceleration sensor for detecting the vibration acceleration due to the vibration of the outer groove 9 is provided on the upper side of the outer groove 9. Further, it has a water level sensor 18 for detecting the water level of the washing water stored in the outer tub 9.

As shown in FIG. 3, the water supply unit 12A includes a lotion supply solenoid valve 12a, a softener supply solenoid valve 12b, a cooling water supply solenoid valve 12c, an outer tank water supply solenoid valve 12d, a bath water pump 12f, and a water supply path. Unit 30.

The lotion water supply solenoid valve 12a passes the tap water from the water supply pipe connection port 4 through the water supply port unit 30 from the water inlet (not shown), and is connected to the water outlet 32 by the hose 12i (see Fig. 2). cast Water is supplied to the lotion input chamber (not shown) of the apparatus 11 (see Fig. 2). The tap water injected into the lotion supply chamber passes through the injection pipe 11a (see FIG. 2) together with the supplied lotion, and water is injected into the outer tank 9.

The softener supply solenoid valve 12b passes the tap water from the water supply pipe connection port 4 through the water supply path unit 30 from the water inlet 33, and the input device 11 is connected to the water supply port 35 by the hose 12j (refer to FIG. 2). The softener is put into the room (not shown) for water supply. The tap water injected into the softener supply chamber is injected into the outer tank 9 through the input hose 11a (see FIG. 2) together with the supplied softener.

The cooling water supply solenoid valve 12c is supplied to the water-cooling dehumidifying mechanism (not shown) of the drying duct 20 (see FIG. 2) through a hose (not shown) through a hose (not shown).

The outer tank water supply solenoid valve 12d supplies tap water from the water supply pipe connection port 4 into the outer tank 9 from the water injection pipe 11b (see FIG. 2) connected to the flow path 12h.

In addition, the bath water that has been pumped from the suction pipe connection port 5 by the bath water pump 12f is supplied into the outer tank 9 from the water injection pipe 11b (see FIG. 2) that is connected and connected to the flow path 12h.

As shown in FIG. 8, the washer-dryer 1A is equipped with the control apparatus 100. The control device 100 is configured mainly by the microcomputer 110. The microcomputer 110 includes an operation type database 111, a step control unit 112, a rotation speed calculation unit 113, a clothing weight calculation unit 114, and the like.

The microcomputer 110 has the function of calling out the operation type of the operation stroke input by the operation button 7a, starting the laundry or/and drying clothes.

The step control unit 112 has a function of controlling each step of the washing step, the washing step, the dehydrating step, and the drying step in accordance with the operation type called from the operation type database 111. In each step, the step control unit 112 has drive control water supply units 12A (water supply solenoid valves 12a to 12d), a drain valve 14, a motor 10a, a clutch mechanism 10b, a heater 22, and a fan 21, respectively, using respective drive circuits. Features.

The rotation speed calculation unit 113 has a function of calculating the rotation speed of the motor 10a based on the detection value of the rotation detecting device 28 that detects the rotation of the motor 10a.

The clothing weight calculating unit 114 has a function of calculating the weight of the clothes in the washing and dewatering tank 8 based on the rotational speed calculated by the rotational speed calculating unit 113 and the detected value of the motor current detecting device 29. Since the weight of the clothes is increased, the load for rotating the washing and dewatering tank 8 becomes large, so the motor current flowing to the motor 10a must be increased. Therefore, the weight of the clothes can be calculated by the motor current and the rotational speed of the motor 10a. .

Next, the operation of the washer-dryer 1A in the first embodiment will be described with reference to Fig. 9 . Fig. 9 is a flow chart for explaining an operation procedure of the washing machine (washing and drying machine) according to the first embodiment. The washing operation shown in Fig. 9 is a step chart for explaining the operation steps of washing → washing (tank washing) → dehydrating → (drying).

As shown in FIG. 9, in the cloth amount sensing step S1, step control The manufacturing unit 112 rotates the washing and dewatering tank 8, and the clothing weight calculating unit 114 calculates the cloth amount for the clothes before the water injection.

In the water supply. In the step S2, the step control unit 112 opens the outer tank water supply solenoid valve 12d, and injects tap water into the washing and dewatering tank 8 by the water injection pipe 11b. Further, the step control unit 112 closes the outer tank water supply solenoid valve 12d after the predetermined time has elapsed. This is because the inside of the water injection pipe 11b connected to the water supply pipe connection port 4 contains air, and the air is discharged into the outer tank 9.

Thereafter, the step control unit 112 turns on the lotion supply solenoid valve 12a, and injects tap water into the lotion input chamber (not shown) of the input device 11. The tap water injected into the lotion supply chamber is injected into the outer tank 9 along with the injected lotion. Further, the step control unit 112 closes the lotion water supply solenoid valve 12a after a predetermined time elapses (or after reaching a predetermined water level) after the lotion water supply solenoid valve 12a is turned on.

In step S3 of dissolving the lotion, the step control unit 112 drives the washing and dewatering tank 8 or the stirring blade 8a to dissolve the lotion to produce a high concentration lotion solution.

In the rotary water supply step S4, the step control unit 112 opens the outer tank water supply solenoid valve 12d, supplies water to the outer tank, and rotates the washing and dewatering tank 8 and/or the rotary wing 8b while bringing the high-concentration lotion solution toward the laundry. The clothes in the dewatering tank 8 are scattered.

In the pre-washing step S5, a high concentration of the lotion solution is used to wash the clothes.

In the cloth sensing step S6, first, the weight calculation of the clothing type The portion 114 calculates the weight of the garment in the hydrated state. Then, the cloth quality (water absorption) of the clothes is judged from the weight of the clothes having no water content calculated in the cloth amount sensing step S1 and the weight of the clothes in the water state calculated in the cloth quality sensing step S6. The following steps are controlled according to the fabric quality of the clothes to be judged.

In the laundry water supply step S7, the step control unit 112 matches the weight of the clothing calculated in the cloth amount sensing step S1 and the cloth quality of the clothing determined in the cloth sensing step S6, and the outer tank 9 (or the laundry and the dewatering tank) 8) Internal water supply.

In the present washing step S8, the step control portion 112 rotates the rotary wing 8b (or alternately rotates in forward and reverse directions) to wash the clothes. Further, although not shown, in the present washing step S8, the rotary blades 8b are alternately rotated in the forward and reverse directions, and the operation of loosening the clothes is also performed. Further, the step control unit 112 repeats the present laundry step and the clothing loosening step several times. After the laundry step is completed, the balance state of the clothes is monitored to determine whether or not to move to dehydration.

In the draining step S9, the step control unit 112 opens the drain valve 14 to discharge the washing water in the outer tub 9.

In the spin-drying step S10, after the completion of the draining, the step control unit 112 rotates the washing and dewatering tank 8 to remove the water (washing water) contained in the clothes.

In the spin spraying step S11, the step control unit 112 closes the drain valve 14, opens the outer tank water supply solenoid valve 12d, and supplies the washing water to the washing and dewatering tank 8. Then, the washing and dewatering tank 8 is rotated to the right at a low speed (about 30 to 50 revolutions per minute) to spread the washing water in the washing and dewatering tank. 8 clothes. However, since it is difficult to completely infiltrate all of the supplied washing water into the clothes, some of the washing water does not permeate the clothes but is stored in the outer tub 9. Therefore, after the predetermined time elapses, or after the predetermined water level is reached, the outer tank water supply solenoid valve 12d is closed, and the washing and dewatering tank 8 is turned to the right rotation at 150 to 200 per minute. The washing water is lifted to the flow path A16a by the centrifugal pump of the bottom surface 8d of the washing and dewatering tank 8 and the inner blade 8d2, and the washing agent in the washing and dewatering tank 8 is sprinkled from the sprinkling port 17a1 to dilute the lotion contained in the clothes. . By doing so, the supplied washing water can be effectively dispersed in the clothes.

In the spin-drying step S12, the step control unit 112 opens the drain valve to rotate the washing and dewatering tank 8 and remove the washing water from the clothes.

In the rotary spraying step S13, the same operation as the rotary spraying step S11 is performed.

In the draining step S14, the step control unit 112 stops the washing and dehydrating tank 8, opens the drain valve 14, and discharges the washing water in the outer tub 9.

In the spin-drying step S15, after the completion of the draining, the step control unit 112 rotates the washing and dewatering tank 8 to remove the water (washing water) contained in the clothes.

In the washing water supply step S16, the step control unit 112 closes the drain valve 14, opens the softener supply solenoid valve 12b, and supplies the washing and dewatering tank 8 with the washing water containing the softener. After the elapse of a predetermined time, the outer tank water supply solenoid valve 12d is opened, and the outer tank 9 (or the washing and dewatering tank 8) is supplied with washing water.

In the loosening step S17, the step control unit 112 causes the rotary blades 8b to alternately rotate in the forward and reverse directions to perform loose operation of the clothes.

In the stirring step S18, the step control unit 112 rotates the washing and dewatering tank 8 while the outer tank 9 stores the washing water, and washes the laundry while stirring.

In the above-described rotary spraying steps S11, S13, since the washing water reaches the upper portion of the washing and dewatering tank 8 or the outer tank 9, it has a function of preventing dirt from adhering to the washing and dewatering tank 8 or the outer tank 9. However, since the bottom surface of the washing and dewatering tank 8 or the back surface of the stirring blade 8b has a complicated shape, if only one-way rotation occurs, a portion where the washing water does not flow is generated, and this portion may have dirt adhering thereto.

Therefore, when the operation button 17a1 for performing the tank cleaning is set, the tank cleaning step S19 is performed. In the tank washing step S19, the washing and dewatering tank 8 is rotated bilaterally in the left and right directions, and the upper surface or the lower surface of the bottom surface of the washing and dewatering tank 8 and the lower surface of the rotating blade 8b are washed. At this time, the number of revolutions of the washing and dewatering tank 8 is changed in accordance with the amount of water stored in the outer tank 9, and the higher the water level, the lower the number of revolutions. For example, when the predetermined water level (at a standstill, which is 1/3 of the height of the outer tank 9), it is set to 150 to 200 rpm, and above the predetermined water level (at rest, it is the height of the outer tank 9) In 1), it is set to 80~130 rpm. This number of revolutions is set so that the washing water can rise along the groove portion 9d of the outer tub 9 and reach the back surface of the outer tank casing 9a by the centrifugal action of the rotation of the washing and dewatering tank 8.

For example, initially, the washing and dewatering tank 8 is rotated to the right to raise the washing water from the flow path A16a, and sprinkle from the spout 17a1 to the laundry. In the water tank 8, after a predetermined period of time, the washing and dewatering tank 8 is suspended, and then the washing and dewatering tank 8 is rotated to the left to raise the washing water from the flow path B16b, and the laundry from the spout 17b1 toward the washing and dewatering tank 8 spray. By doing so, it is possible to prevent the dirt from adhering to the back surface of the washing/dewatering tank 8 or the stirring blade 8b or the entire outer tank 9 by the flow of the washing water.

Since a large amount of water can be wound up by the flow paths A16a and B16b, the groove cleaning power can be improved as compared with the case where the water is brought to the surface of the mortar-like water only by the rotation of the washing and dewatering tank 8. Further, since the inner side or the inner blade 8b1 of the stirring blade 8b can be washed on the one hand by the left and right rotation, the water can be rolled up regardless of whether it is a right turn or a left turn, so that the inside of the groove can be washed more efficiently. Even since the direction of the water flow differs depending on the right and left rotation, it is possible to prevent the occurrence of the washing spot and further surely complete the washing in the tank.

When inverting, it is better to reverse it quickly after the rotation stops. As a result, the washing and dewatering tank 8 rotates in the opposite direction to the washing water swirled in the outer tank 9 by the rotation of the first washing and dewatering tank 8, so that the water in the outer tank 9 and the washing and dewatering tank 8 are The relative speed is increased, and a strong fluid force acts on the bottom plate 8d of the washing and dewatering tank 8 or the back surface of the rotary wing 8b, which can further effectively remove dirt or garbage. Further, the reversal of the rotation direction of the washing and dewatering tank 8 may be repeated several times. In this way, it can be further cleaned.

Next, the rotation speed of the washing and dewatering tank 8 in the tank washing step S19 can be increased from 150 rpm to more than 200 rpm in the spin spraying steps S11, S13 to increase the circulating flow rate of the washing water. As a result, the flow rate between the washing and dewatering tank 8 and the outer tank 9 flows. The liter can increase the surface of the tank or the washing effect of the back surface of the stirring blade 8b, and can effectively remove dirt or garbage.

In the above, although the washing water is directly used for the tank washing, the washing water may be discharged, the lotion water supply valve 12a and the softener water supply valve 12b may be opened, and the tap water may be supplied to the outer tank 9. In the same manner as the rotary spraying step S11 or S13), the washing and dewatering tank 8 is rotated right, stopped, and left rotated at 150 to 200 revolutions per minute. In this way, since the washing and dewatering tank 8 or the rotary vane 8b and the outer tub 9 are cleaned using clean tap water, the washing effect can be further improved.

After the tank washing step S19 is completed, the step control unit 112 monitors the balance state of the clothes and determines whether or not to move to the final dewatering.

In the draining step S20, the step control unit 112 opens the drain valve 14 to discharge the washing water in the outer tub 9.

When a series of operation modes from laundry to drying is set, the drying step S22 is performed after the dehydration step S21.

In the drying step S22, the step control unit 112 turns on the cooling water supply solenoid valve 12c, energizes the heater 22, and drives the fan 21.

As described above, the washing and drying machine 1A of the first embodiment rotates the washing and dewatering tank 8, and the centrifugal water can be used to flow the washing water to the upper portion of the washing and dewatering tank 8 or the outer tank 9, even because the laundry is made. Since the rotation direction of the dewatering tank 8 is reversed, the fluid force of the washing water can be fully acted to prevent dirt or garbage from adhering to the washing and dewatering tank 8 or the rotary wing 8b or the outer tank 9.

In the first embodiment described above, although the rotation is described The rotation directions of the washing and dewatering tanks 8 in the spraying steps S11 and S13 are all right-turning, but may be set to be a right turn in the rotary spraying step S11 and a left turn in the rotary spraying step S13. By doing so, even when the operation button 17a1 for performing the tank cleaning is not set, the washing water can be completely sprayed to the washing and dewatering tank 8 or the rotary wing 8b or the outer tank 9 in the rotary spraying step, so that the cleaning can be improved. Prevent the effects of dirt or rubbish attached to it.

In addition, by increasing the number of revolutions of the washing and dewatering tank 8 in the final cleaning of the washing step or in the tank washing step to a higher number of revolutions than in the rotary spraying step, it is possible to produce a stronger water flow. Use clean water to wash the tank.

Further, the shape of the sprinkling port 17a1 and the sprinkling port 17b1 may be changed so that the direction in which the washing water is sprinkled is different. For example, the shape of the partition wall 17a3 is set such that the washing water from the sprinkling port 17a1 is sprayed toward the center of the washing and dewatering tank 8, and the partition wall 17b3 is shaped such that the washing water from the spout 17b1 faces the laundry. Water is sprayed near the outer periphery of the water tank 8 (near the groove plate 8a). By doing so, the washing water can be completely sprinkled into the clothes in the washing and dewatering tank 8, and the washing performance can be improved.

Further, instead of providing the operation button 17a1 for cleaning the tank, it is also possible to set the tank to be washed frequently.

≪Second embodiment≫

Fig. 10 is a schematic external view of the outer tub 90 of the washer-dryer according to the second embodiment. Parts overlapping with FIG. 2 are omitted because they use the same symbols.

Unlike the first embodiment, three or more water passages 116a are provided in the tank portion 109d of the outer tank 109. When the washing and dewatering tank 8 is turned right, the washing water is directed upward. Fig. 10 shows a case where four water passages 116a are provided. Further, as shown in Fig. 11, a water path 117a is provided on the lower surface of the outer tank casing 90a at a position facing the upper end of the water passage 116a. The portion in which the water passage 117a is provided protrudes toward the upper side, and has a circumferentially inclined surface 117b on one side and a vertically vertical partition wall 117c on the opposite side of the inclined surface. Further, a sprinkler 117a1 is provided inside the water passage 117a (on the side of the laundry and dewatering tank).

In this way, by increasing the number of water passages 116a, the flow rate of the washing water leading to the upper portion of the washing and dewatering tank 8 or the outer tank 109 can be increased, so that the dirt or garbage can be controlled to adhere to the washing and dewatering tank 8 or the outer tank 109. .

The operation procedure of the present embodiment is basically the same as that of the first embodiment shown in Fig. 9. However, in the tank cleaning step S19, only the washing and dewatering tank 8 is rotated in only one direction. Further, the angle of the partition wall 117c of the water passage 11a of the outer tank casing 90a toward the washing and dewatering tank 8 is also changed. In Fig. 11, the partition wall 117c faces the rotation axis of the washing and dewatering tank 8 with respect to the partition wall 117c, the partition wall 117c1 faces the rotation direction of the washing and dewatering tank 8, and the partition wall 117c2 faces the same rotation as the washing and dewatering tank 8. direction. By doing so, the washing water can be sprayed to a wider range, and the washing water can be evenly sprinkled on the laundry to improve the washing performance.

Just change the distance from the center of the rotary shaft to make the sprinkler position different. When sprinkling water toward the outer peripheral side that is away from the center of the rotating shaft, because When the laundry is dehydrated, the laundry is biased on the outer peripheral side of the washing and dewatering tank 8, so that the washing water can be effectively sprayed to the laundry during the spin spraying step performed after the dehydration.

≪The third embodiment≫

Fig. 12 is a partial cross-sectional view showing a water supply unit that supplies water to the balance ring 80 of the washer-dryer according to the third embodiment, and Fig. 13 is a schematic view of a water supply path. The same portions as those in Fig. 2 are omitted because the same reference numerals are used.

A washing water reservoir 80a is formed on the upper end surface of the balance ring 80. The washing water storage unit 80a is formed by a crotch portion 80b, an inner peripheral wall 80c, and an outer peripheral wall 80d. The inner peripheral wall 80c is formed on the inner peripheral portion of the crotch portion and extends more toward the upper portion than the upper end surface of the gimbal ring 80. The outer peripheral wall 80d is an outer peripheral portion of the crotch portion and extends more toward the upper portion than the upper end surface of the gimbal ring 80. The upper end of the inner peripheral wall 80c is higher than the upper end of the outer peripheral wall 80d.

The outer tank water supply solenoid valve 12d supplies tap water from the water supply pipe connection port 4 into the outer tank 9 from the water injection pipe 11b. The water injection pipe 11b diverges the water injection pipe 11c from the middle, and the water injection pipe 11c is connected to the connection port 9f provided inside the upper surface of the outer tank casing 90a. A sprinkler 50 is provided on the lower surface of the outer tank casing 90a, and the sprinkler 50 is located at a position opposed to the washing water reservoir 80a on the upper surface of the balance ring 80. The sprinkler 50 communicates with the connection port 9f, and a part of the tap water from the outer tank water supply valve 12d can be stored in the washing water storage unit 80a.

The operation steps of the washer-dryer according to the third embodiment are the same The first embodiment shown in Fig. 9 is shown. In this embodiment, the water supply for opening the outer tank water supply solenoid valve 12d is performed. When the lotion input step S2, the rotary water supply step S4, the laundry water supply step S7, the spin-spraying steps S11, S13, and the washing water supply step S16, the tap water is supplied to the washing water storage unit 80a.

At this time, when the washing and dewatering tank 8 is stopped or rotated at an extremely low speed (about 10 revolutions per minute), the tap water supplied to the washing water storage portion 80a overflows from the outer peripheral wall 80d, and the laundry and the dewatering tank are carried out by gravity. The outer side of the tank plate 8a of 8 flows down (dashed arrow) to clean the dirt or garbage on the outer side of the tank plate 8a of the washing and dewatering tank 8. In addition, when the washing and dewatering tank 8 is rotated at about 10 revolutions per minute, the tap water supplied to the washing water storage unit 80a is splashed on the inner circumferential surface of the outer tank 9 by the centrifugal force, and is along the inner circumference of the outer tank 9. The surface of the outer surface of the outer tank 9 is cleaned of dirt or garbage by flowing down the circumference (two-point lock arrow).

Specifically, after the outer tank water supply solenoid valve 12d is opened, the washing and dewatering tank 8 is stopped or rotated at a very low speed, and after a predetermined period of time, the washing and dewatering tank 8 is accelerated to several tens of revolutions per minute. When the acceleration rate at this time is increased, the tap water stored in the washing water reservoir 80a flows together to the inner peripheral surface of the outer tank 9, so that the effect of cleaning dirt or garbage can be improved. Therefore, in the case of water supply for washing or washing, the outer surface of the tank plate 8a of the washing and dewatering tank 8 or the inner peripheral surface of the outer tank 9 can be washed with tap water, so that the first embodiment or the first embodiment 2 Compared with the embodiment, it is possible to further prevent dirt or garbage from accumulating in the washing and dewatering tank 8 or the outer tank 9. In addition, because it is a part of the water used for washing or washing, there is no need The advantage of using excess tap water.

The third embodiment can be combined with the first embodiment or the second embodiment. In the first embodiment or the second embodiment, the washing water storage unit 80a is provided on the upper end surface of the balance ring 80, and the water is immersed in the washing water storage unit 80a from the spouts 17a1, 17b1 or 117a1. Composition. In this way, when the washing and dewatering tank 8 is rotated, the water that is carried to the spout by the water passage provided in the outer tub 9 can be supplied to the washing water reservoir 80a, and the water can be repeatedly sprayed toward the outer tank 9. Therefore, the upper portion of the outer tank 9 which is difficult to clean can be effectively washed. In addition, when the washing and dewatering tank 8 is rotated, the water supply to the washing water storage unit 80a is continuously supplied, so that it is possible to continue washing without supplying new water, thereby achieving water saving on the one hand and washing in the tank. .

The above description has been made on the first embodiment to the third embodiment, and the last washing water is used in the tank washing step. Therefore, although there are only a small amount, there are still lotion components or soap scraps or dirt components from the laundry during washing. Therefore, if used for a long time, it may cause the growth of mold or bacteria. Therefore, in order to suppress the growth of these bacteria after the completion of the washing, it is preferable to carry out the drying operation in the outer tank 9. Specifically, after the laundry is completed, the user opens the outer cover 3 and the cover member 9c to take out the laundry, and after checking whether the cover member 9c and the outer cover 3 are closed, the heater 22 is energized to drive the fan 21, which will The hot air is blown into the washing and dewatering tank 8 or the outer tank 9, and the temperature is raised to evaporate the internal water to perform the drying operation of the tank. In this way, the temperature rise can be used to remove bacteria and the mold can be prevented from being propagated by removing moisture. Detecting the closing of the outer cover 3 The opening/closing detecting means of the outer cover 3 or the operation button 7a for detecting whether the user has operated the drying operation of the start groove or the like can be used.

Further, in addition to the drying operation of the tank, ozone generated by the discharge or the OH anion generated from the moisture in the air may be used to sterilize or suppress the generation of mold by the same discharge. At this time, as in the above-described drying operation of the tank, after the washing is taken out, or in the dehydrating step S21, ozone or OH anion is mixed into the airflow generated by the washing and dewatering tank 8 at the time of high-speed rotation. can.

Further, the final cleaning may be performed by using water in which silver ions are eluted, electrolyzed water in which water is hydrolyzed, or ozone water in which ozone gas is dissolved.

Although the above description has been made using a washer-dryer, the present invention is not limited thereto, and can be applied to a washing machine that does not have a drying function.

8c‧‧‧balance ring

9‧‧‧ outer trough

9a‧‧‧ outer casing

9d‧‧‧Slot body

9e‧‧‧ connector

16a1, 16b1‧‧‧ cylindrical surface

16a2, 16b2‧‧‧ sloped surface

16a3, 16b3‧‧‧ wall

17a, 17b‧‧‧ Waterway

17a1, 17b1‧‧‧ sprinkler

17a2, 17b2‧‧‧ sloped surface

17a3, 17b3‧‧‧ next door

Claims (6)

A washing machine is provided with: a casing; an outer tank supported in the casing to store water therein; an inner groove rotatably supported in the outer tank to accommodate the laundry; and an inner groove disposed in the inner tank a bottom surface portion, a rotary vane that is rotationally driven; an outer tank outer casing provided at an upper portion of the outer tank and having an opening at the center; and a water supply means for supplying water into the outer tank, and performing a washing step, a washing step, and a dehydrating step The washing machine of each step includes: a first flow path provided on an inner circumferential surface of the outer tank, and when the inner tank is rotated forward, the water in the outer tank is rolled outward a first discharge port, wherein the first discharge port is provided in the outer tank casing, and water that is wound up by the first flow path is sprinkled into the outer tank; and a second flow path, the second flow path Provided on the inner circumferential surface of the outer tank, when the inner tank is reversed, the water in the outer tank is wound toward the upper portion of the outer tank; and the second discharge port is provided in the outer tank outer casing , the water that is to be rolled up by the second flow path is sprinkled In the outer tank, after the washing step, the inner tank is rotated forward and reversed in a state where the water is stored in the outer tank by the water supply means, and the water is discharged from the first discharge port. Water is sprinkled near the center of the inner tank, and water sprinkled from the second discharge port is sprinkled with water to the vicinity of the outer circumference of the inner tank. The washing machine according to the first aspect of the invention, wherein the inner bottom surface of the inner tank is provided with an inner blade for stirring water. The washing machine of claim 1, wherein The first discharge port or the second discharge port is sprayed with water toward the upper end portion of the inner tank. The washing machine according to claim 1, wherein the inner tank is rotated forward and the washing water for washing is stored in the outer tank after the washing step is completed. Reverse. The washing machine according to claim 4, wherein after the cleaning step is completed, at least a part of the washing water for washing is discharged, and the inner tank is positively recharged by the water supply means. Turn and reverse. The washing machine according to the first, second or third aspect of the invention, wherein the plurality of first discharge ports and the first flow path are provided, or the second discharge port and the second flow path are provided.