TWI539058B - Washing machine - Google Patents

Description

washing machine

The present invention relates to a washing machine.

In the washing machine, since the dirt adheres to the inner tank (washing and dewatering tank) and the outer tank, it is possible to set a stroke for the purpose of washing the tank differently from the washing operation. However, in the stroke for the purpose of washing the tank, it is necessary to have a chemical for washing, and the user must perform an operation of selecting a tank washing stroke or the like to make the washing operation complicated.

Here, as another aspect of the tank washing of the washing machine, there is proposed a washing machine including a water supply means for providing a concave portion on the upper surface of the inner tank and supplying water to the concave portion. For example, Patent Document 1 listed below discloses a technique in which water is supplied to a recess to allow water to overflow into an inner tank, or water is supplied while rotating the inner tank to cause water to scatter toward the outer tank, thereby washing the inner tank and the outer tank. .

[prior technical literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 8-299679

However, Patent Document 1 does not describe how to set the drain valve when the water supply is performed while rotating the inner tub. Further, the invention described in Patent Document 1 is such that the water supplied to the upper surface of the inner tank overflows into the inner tank and the water scatters toward the outer tank. Therefore, compared with the upper portion of the inner and outer grooves, It is difficult to clean the reverse side of the rotary wing (mixer) in particular in the vicinity of the lower part of the inner tank and the outer tank.

SUMMARY OF THE INVENTION An object of the present invention is to provide a washing machine which is less likely to adhere to the reverse side of a rotary wing in view of the above problems.

In order to achieve the above object, the present invention provides a housing, an outer tub that is supported by the inside of the housing to store water, an inner tank that is enclosed in the outer tub and that contains the laundry, and an inner tank that is disposed in the inner tank. a rotating wing of the inner bottom portion; a driving device for driving the rotary wing; a water supply means for supplying water into the outer tank; and a drain valve for storing water in the outer tank by closing the valve, by opening the valve The water is discharged from the outer tank, and has a water storage portion that can store water on the inner tank, a washing machine, a washing process, and a dehydration washing machine, wherein the water is used after the water used in the washing process. In the state in which the drain valve is closed, the rotary vane is rotated by a higher number of rotations than in the laundry process while the bottom of the outer tank is filled with water, and the drain valve is opened while the rotary vane is rotating. After the water is stored in the water storage unit, the number of rotations of the water tank is accelerated, and water is scattered from the water storage unit to perform cleaning of the outer tank. The tank is washed and running.

According to the present invention, it is possible to provide a washing machine which removes dirt adhering to the reverse side of the rotary wing and which is less likely to be covered again to the reverse side of the rotary wing.

1‧‧‧Washing machine

2‧‧‧Shell

2a‧‧‧Top cover

3‧‧‧ Cover

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

8a‧‧‧Fluid balancer

8a1‧‧‧Receiving Department

8b‧‧‧Sheet plate

8c‧‧‧through holes

8d‧‧‧Rotary Wing

9‧‧‧ outer trough (sink)

9a‧‧‧Outer trough cover

10‧‧‧ drive

11‧‧‧Control base

12‧‧‧Water supply unit

13‧‧‧ bathing pump

14‧‧‧Drain valve

15‧‧‧Washing water drainage road

16‧‧‧Water tank

16a‧‧‧Main water supply solenoid valve

16b‧‧‧Complete agent/tank cleaning water supply solenoid valve

17‧‧‧Slot cleaning water supply room

18‧‧‧Complete agent containment room

19‧‧‧ overflow room

20‧‧‧Water supply

21‧‧‧Sprinkle cover

21a‧‧‧ sprinkler

21b‧‧‧ lining

30‧‧‧Water Storage Department

30a‧‧‧ inner peripheral side ridge

30a1, 30b3‧‧

30b‧‧‧outer side ridge

30b1‧‧‧ inner circumference

30b2‧‧‧ outer perimeter

30c‧‧‧Intermediate uplift

Fig. 1 is a perspective view showing the appearance of a washing machine of a first embodiment.

Fig. 2 is a schematic view showing the inside of a casing of the washing machine of the first embodiment.

Fig. 3 is a perspective view showing a water supply unit of the washing machine of the first embodiment.

Fig. 4 is a perspective view showing a water supply tank of the washing machine of the first embodiment.

Fig. 5 is a top view showing the inside of a water supply tank of the washing machine of the first embodiment.

Fig. 6 is a cross-sectional view of Fig. 5A-A showing a water supply tank of the washing machine of the first embodiment.

Fig. 7 is a perspective view showing a flow of a liquid overflowing in a water supply tank of the washing machine of the first embodiment.

Fig. 8 is a cross-sectional view of Fig. 5B-B showing a water supply tank of the washing machine of the first embodiment.

Fig. 9 is an exploded perspective view showing a groove of the washing machine of the first embodiment.

Fig. 10 is a perspective view (table) showing an outer tank cover of the washing machine of the first embodiment.

11] An exploded perspective view showing an outer tank cover of the washing machine of the first embodiment Figure (in).

Fig. 12 is an external perspective view of a sprinkler cover provided in a water supply port of the washing machine of the first embodiment.

Fig. 13 is a perspective view showing a fluid balancer of the washing machine of the first embodiment.

Fig. 14 is a cross-sectional view showing a fluid balancer of the washing machine of the first embodiment.

Fig. 15 is an enlarged cross-sectional view showing a fluid balancer of a water storage unit of the washing machine of the first embodiment.

Fig. 16 is a schematic cross-sectional view showing various shapes of a water storage unit of the washing machine of the first embodiment.

Fig. 17 is a schematic view showing a positional relationship between a water supply port of an outer tank cover of the washing machine of the first embodiment and a fluid balancer.

Fig. 18 is a schematic view showing a path from the water supply unit of the washing machine of the first embodiment to the outer tub.

19 is a view showing a functional configuration of a control device of a washing machine in the first embodiment.

Fig. 20 is a table showing the operation of the washing machine of the first embodiment.

FIG. 21 is a detailed drawing showing the tank washing operation S20 of the washing machine of the first embodiment to the spin-drying operation S25.

FIG. 22 is a schematic view showing a flow of water after the water supply unit starts to supply water when the washing machine of the washing machine of the first embodiment is washed.

FIG. 23 is a schematic view showing a flow of water when the water in the water storage unit overflows into the inner tank during the washing of the washing machine of the first embodiment.

FIG. 24 is a schematic view showing a flow of water when the water in the water storage unit is scattered to the outer tank during the washing of the washing machine of the first embodiment.

Fig. 25 is a table showing the operation of the washing machine of the second embodiment.

[Fig. 26] A detailed drawing of the tank washing operation S21 to the dehydrating operation S25 of the washing machine of the second embodiment.

[Formation for carrying out the invention]

Hereinafter, the first embodiment of the present invention will be described in detail with reference to an appropriate drawing.

As shown in FIG. 1, the washing machine 1 is an external perspective view of the washing machine 1 in which the rotating shaft 10c of the inner tank 8 is substantially perpendicular. An upper cover 2a is provided on the upper portion of the casing 2 of the washing machine 1, and an outer cover 3 is provided on the upper cover 2a. The outer cover 3 is opened to the deep side while being bent into a mountain shape, whereby the clothes (washing materials) can be taken out and taken in the inner tub 8.

On the deep side of the upper cover 2a, a water supply unit 12 for supplying water into the outer tank 9 is provided. The water supply unit 12 is provided with a water supply hose connection port 4 from the faucet and a water suction hose connection port 5 for the remaining hot water of the bathtub. A power switch 6 is provided on the front side of the upper cover 2a, and an operation panel 7 formed by the operation switch 7a and the display 7b is provided on the front side of the outer cover 3.

As shown in FIG. 2, the washing machine 1 is provided with the inner tank 8, the outer tank 9, the drive device 10, the water supply unit 12, etc. in the housing 2.

The inner tank 8 has a bottomed cylindrical shape, and has a ring-shaped synthetic resin fluid balancer 8a in which a liquid is sealed in a hollow interior, and a substantially cylindrical casing formed of a stainless steel plate or the like. A plate 8b; and a bottom plate (not shown) formed of a synthetic resin at the bottom, and an aluminum flange is disposed on the bottom plate by insert molding. A plurality of through holes 8c (only a part of which are shown) for water and ventilation are formed in the casing plate 8b. Further, in addition to the above, the inner tank 8 may be configured to have a weight or the like that adjusts the rotational balance of the inner tank 8.

The inner groove 8 is provided with a rotor blade 8d on the inner bottom surface. in A pumping action of a plurality of rotating blades 8d is provided on the inner peripheral surface side of the casing plate 8b, thereby circulating a water sprinkling tank (not shown) for circulating the washing water and the washing water supplied to the outer tank 9. And a batt filter box (not shown) for collecting wire scraps.

The outer groove 9 has a bottomed cylindrical shape and is enclosed in a coaxial inner bag. The groove 8 is formed by providing an outer tank cover 9a at its upper portion. The outer tank 9 is provided with a falling portion 9m on the inner peripheral side bottom surface, and a drain valve 14 is connected to the outer peripheral side of the falling lower portion 9m.

By closing the drain valve 14, the washing water and the washed water can be stored. The water is in the outer tank 9. Further, by opening the drain valve 14, the water in the outer tank 9 can be drained to the outside of the washing machine 1 via the washing water drain path 15. Further, the outer tank 9 is provided with a water level sensor connecting portion (not shown) for detecting the water level of the stored washing water.

The driving device 10 is disposed outside the bottom surface of the outer tank 9. central. The drive device 10 includes a motor 10a and a clutch mechanism 10b. The rotation shaft 10c of the drive device 10 penetrates the outer groove 9, and is configured to be coupled to the inner groove 8 and the rotary blade 8d. The clutch mechanism 10b has a function of transmitting the rotational power of the motor 10a to the inner tank 8 and/or the rotary wing 8d. Motor 10a A rotation detecting device 28 including a Hall element that detects the rotation thereof, and a motor current detecting device 29 that detects a current flowing to the motor 10a.

Figure 3 is an enlarged view of the deep side of the casing 2 with the upper cover 2a removed. Figure. A water supply unit 12 is provided on the deep side of the upper portion of the casing 2. The water supply unit 12 is provided with a water supply tank 16 that houses the completion agent, and a bath water pump 13 for supplying the bath water to the outer tank. Further, a control base 11 for controlling the washing machine is provided beside the water supply tank 16.

4 is a perspective view of the water supply tank 16. In the water tank 16 The main water supply solenoid valve 16a that directly supplies the external tank water supply; the completion agent/tank cleaning water supply solenoid valve 16b that supplies the water supply to the water supply tank 16; and the flow path that is connected to the bath water pump 13 although not shown.

FIG. 5 is a top view of the water supply tank 16. Water tank 16 points The tank cleaning water supply chamber 17 for washing the inner tank and the outer tank; the completion agent storage chamber 18 for storing the completion agent; and the overflow chamber 19 into which the water overflowing from the completion agent storage chamber 18 flows. As will be described later, the water supply tank 16 is formed with water supplied from the completion agent/tank cleaning water supply solenoid valve 16b, and the water overflowing from the tank cleaning water supply chamber 17 flows into the completion agent storage chamber 18, from the completion agent storage chamber. The structure in which the overflowed water flows into the overflow chamber 19 and is supplied to the outer tank.

Fig. 6 is a cross-sectional view taken along line A-A of Fig. 5; Washing the water supply chamber in the tank 17 is provided: an inflow port 17a into which water flows when the completion agent/tank is cleaned of the water supply solenoid valve 16b. Although water is supplied from the inflow port 17a to the tank washing and supplying water supply chamber 17, when there is a strong water flow, there is a concern that the water bounces to the outside of the tank washing water supply chamber 17, so for example, a water flow restriction for changing the orientation of the water is provided. The plate or the like causes the inflow port 17a to face downward. Further, in order to suppress the water potential supplied from the inflow port 17a, the inclination of the water flow from the inflow port 17a is formed on the bottom surface of the tank washing and supplying water chamber 17. Further, a rib 17c for suppressing splashing of the wall surface water from which the water flow from the inflow port 17a is suppressed is provided. Although the rib 17c can be considered in various shapes, in the present embodiment, two convex shapes which are substantially parallel to the bottom surface and substantially perpendicular to the wall surface are provided. Further, the ribs 17c may be three or more, and may be provided on other wall surfaces. The water supplied from the inflow port 17a by the above-described structure is weakened by the inclined water potential of the bottom surface, and is formed to collide with the wall surface and then bounces back on the rib 17c, and does not fly out of the tank washing and supplying water chamber 17.

The bottom surface of the tank washing water supply chamber 17 is oriented toward the inlet The manner in which 17a becomes lower is inclined, but the lowest portion is formed below the inflow port 17a. Further, at the lowest portion, a groove communicating with the outer tub is provided to wash the outlet port 17b of the water supply chamber 17. Thereby, the water bounce is suppressed, and the water is prevented from remaining in the tank washing water supply chamber 17.

Fig. 7 is a perspective view showing the flow of water in the water supply tank 16. turn on When the completion agent supply/tank is cleaned of the water supply solenoid valve 16b, the flow rate from the inflow port 17a to the tank washing and supplying water supply chamber 17 is larger than the flow rate from the outflow port 17b of the tank washing and supplying water supply chamber 17. Therefore, when the completion agent/tank is cleaned in the state of the water supply solenoid valve 16b, the water gradually collects in the tank washing water supply chamber 17 and overflows. The water overflowing from the tank cleaning water supply chamber 17 is an arrow 100 as shown in Fig. 7, and flows into the completion agent storage chamber 18 over the partition plate A. The partition plate A is set to the lowest among the walls forming the tank washing water supply chamber 17, and the water overflowing from the tank washing water supply chamber 17 does not flow to other places to complete. Agent accommodating chamber 18. Further, since the partition plate A is disposed at a different position from the wall surface that collides with the water from the inflow port 17a, it is possible to prevent the flow of the water from flowing into the completion agent storage chamber 18 over the partition plate.

The finish agent accommodating chamber 18 is provided with an outflow port communicating with the outer tank 18a. A siphon cap (not shown) is provided in the outflow port 18a of the completion agent accommodating chamber 18, and when a certain amount of water is accumulated, a finishing agent accommodated together with water is put into the outer tub by a siphon phenomenon. Further, the completion agent storage chamber 18 is provided with a partition plate B lower than the partition plate A. Thereby, the water overflowing from the completion agent accommodating chamber 18 is prevented from flowing back to the tank washing and supplying water chamber 17.

Further, the flow from the inflow port 17a into the tank washing and supplying water supply chamber 17 The amount is more than the total flow rate which flows out from the outflow port 17b of the tank washing water supply chamber 17 and the flow rate which flows out from the outflow port 18a of the completion agent accommodation chamber 18. Therefore, when the water supply is continued from the inflow port 17a, the water also overflows from the completion agent accommodating chamber 18, and flows into the overflow chamber 19 beyond the partition plate B such as the arrow 101. The overflow chamber 19 is connected to the outer tank, and the water flowing into the overflow chamber 19 is supplied to the outer tank.

Further, an inlet is formed in the wall of the finisher accommodating chamber 18 A part of the wall surface on the side of the 17a is expanded by obstructing the flow of water from the inflow port 17a. Thereby, the flow of water from the inflow port 17a can be weakened, and the volume of the finish agent containing chamber 18 can be increased. Further, the tank washing water supply chamber 17 has a volume of about 152 ml, and the finished agent storage chamber 18 has a volume of about 84 ml.

Fig. 8 is a cross-sectional view taken along line B-B of Fig. 5; Wash from finisher/tank The water supply solenoid valve 16b is supplied to the tank washing water supply chamber 17, and is supplied from the water supply port 20 to the outer tank through the flow path of the arrow mark 103 (water storage) unit). The water supplied from the main water supply solenoid valve 16a attached to the water supply tank 16 is supplied to the outer tank through the flow path of the arrow print 102. Further, the outflow port 18a and the overflow chamber 19 of the completion agent storage chamber 18 are in communication with the flow path of the arrow print 102, and the water containing the finish agent flowing out from the outlet port 18a of the completion agent storage chamber 18 and the overflow chamber 19 follows. The flow path of the arrow print 104 merges with the water supplied from the main water supply solenoid valve 16a and is supplied to the outer tank.

As shown in FIG. 9, the outer tank cover 9a has a substantially semicircular shape. The inlet 9b is introduced and mounted on the upper end edge of the outer tub 9. The inner tank 8 has a fluid balancer 8a formed of synthetic resin or the like attached to the upper end edge portion of the casing plate 8b.

As shown in FIG. 10, the outer tank cover 9a is provided with a groove which will be described later. The water supply port 20 for washing. The water supply port 20 is connected to the outflow port 17b of the tank washing water supply chamber 17 of the water supply tank 16.

Fig. 11 is a view showing the outer groove cover 9a from the inside. Figure 5 As shown, the sprinkler cover 21 provided in the outer tank cover 9a is provided. A water-shielding lining 21b is provided between the sprinkler cover 21 and the outer tank cover 9a, so that the water supplied from the water supply port 20 can flow to the sprinkler cover 21 without waste.

As shown in Figure 12, the sprinkler cover 21 faces the fluid balancer The radial arrangement of 8a has a plurality of sprinklers 21a. The sprinkling port 21a from the inner peripheral side of the fluid balancer 8a is supplied to a water storage portion 30, which will be described later, and the spout 21a located on the outer peripheral side of the fluid balancer 8a flows to the outer peripheral wall of the inner tank 8. Way to give water.

Figure 13 shows the three-dimensional image of the overall image of the fluid balancer 8a. Figure. As shown in Fig. 7, the fluid balancer 8a is formed in a substantially annular shape. The fluid balancer 8a is constituted by a fluid having a large internal sealing ratio, and when eccentricity occurs due to the deviation of the laundry during the rotation of the inner tank 8, the eccentricity is eliminated by the movement of the fluid in the fluid balancer 8a. To maintain the balance of rotation. The fluid balancer 8a is attached to the upper end portion of the casing plate 8b so as to be substantially concentric with the central axis of rotation of the inner tank 8.

Fig. 14 is a cross-sectional view showing the fluid balancer 8a cut in the radial direction. The liquid sealed in the fluid balancer 8a is housed in the accommodating portion 8a1. The inside of the accommodating portion 8a1 is divided into a plurality of layers in the radial direction from the center of the fluid balancer 8a. Further, the interior of each layer is divided into a plurality of spaces, each of which is movably connected to the enclosed liquid.

As shown in Fig. 15, on the inner tank 8 (fluid balancer 8a), a water storage portion 30 capable of storing water is formed. The water storage portion 30 is constituted by a concave portion that surrounds the circumference of the inner circumference of the inner groove 8. Although the tank is washed by overflowing or scattering water from the water storage portion, the water storage portion is preferably placed at a high position, and it is preferable to form the upper end portion of the inner tank 8 as described later. The water storage unit 30 is formed so as to be sandwiched between the inner circumferential side bulging portion 30a and the outer circumferential side bulging portion 30b which are positioned on the inner circumferential side and the outer circumferential side of the inner circumferential direction of the inner groove 8. The water storage portion 30 formed between the ridges is such that the larger the volume of the water storage, the more the accumulated water is scattered to the outer tank 9, so that the effect of washing the outer tank 9 is improved.

In the present embodiment, since the fluid balancer 8a is provided at the upper end portion of the casing plate 8b, the water storage portion 30 is formed at the upper portion of the fluid balancer 8a, but the members other than the fluid balancer 8a of the inner tank 8 are integrally formed. The water storage portion 30, or may be provided as a different member.

The inner peripheral surface 30b1 of the outer peripheral side ridge portion 30b is formed substantially Vertically, or inclined toward the outer groove 9, is formed. When the inner peripheral surface 30b1 of the outer peripheral side raised portion 30b is formed to be inclined obliquely to the direction of the outer groove 9, the water stored in the water storage portion 30 cannot be scattered and remains, which causes moisture and scale. Therefore, the inner peripheral surface 30b1 of the outer peripheral side ridge portion 30b is considered to be substantially perpendicular to the volume of water stored in the water storage portion 30.

The outer peripheral surface 30b2 of the outer peripheral side ridge portion 30b is formed substantially It is formed vertically or obliquely in the opposite direction to the outer groove 9. When the outer peripheral surface 30b2 of the outer peripheral side ridge portion 30b is formed to be inclined toward the outer groove 9, when water is allowed to overflow from the water storage portion 30, water is easily transmitted to the outer peripheral wall of the inner groove 8, and there is no flow between the outer groove 9 and the inner groove 8. fall. On the other hand, when the outer circumferential groove 9 is inclined in the direction of the outer groove 9, the inner circumferential surface 30b1 of the outer circumferential side bulging portion 30b can be inclined toward the outer groove 9 side, so that the volume of the water storage portion 30 can be increased. At this time, it is preferable that the outer peripheral surface 30b2 is formed at an inclination of 20 or less from the vertical axis toward the outer groove 9. Further, when it is inclined in the direction of the outer groove 9, it is necessary to consider that only the distance between the outer peripheral surface 30b2 of the outer peripheral side ridge portion 30b and the outer groove 9 is shortened.

When the water storage portion 30 is formed in the fluid balancer 8a, there will be As far as possible, it is not desirable to reduce the restriction of the volume of the liquid sealed in the fluid balancer 8a in order to prevent the performance of the fluid balancer 8a from deteriorating. Therefore, the depth of the water storage portion 30 is such that the outer peripheral side is formed deeper than the inner peripheral side. The reason for this is that when the inner tank 8 is rotated, the water surface of the water stored in the water storage unit 30 is increased in the outer peripheral side due to the centrifugal force, and the inner peripheral side is lowered. Happening. In other words, when the number of rotations of the inner tank 8 is increased, most of the water on the inner peripheral side of the water storage unit 30 flows out during the period of the number of rotations of the water reaching the outer tank 9 when the water reaching the water storage unit 30 is scattered. Therefore, the depth formed on the outer peripheral side of the water storage unit 30 can ensure a larger amount of water in the water storage unit 30 until the water in the water storage unit 30 starts to scatter toward the outer tank 9 when the inner tank 8 rotates. Moreover, it is also possible to suppress a decrease in the storage volume of the liquid accommodated in the fluid balancer 8a.

Further, in order to secure more water remaining in the water storage portion 30, Therefore, the height of the outer peripheral side ridge portion 30b is higher than that of the inner peripheral side ridge portion 30a. For the same reason as described above, the water surface on the outer peripheral side of the water storage portion 30 is increased when the inner tank 8 is rotated. Therefore, the height of the outer peripheral side bulging portion 30b is increased, and the amount of water can be easily secured in the water storage portion 30. More water is scattered to the outer tank 9.

FIG. 16 is a cross-sectional view showing various shapes of the water storage portion 30 provided in the inner tank 8. The shape A is described as a basic structure in order. The shape A is a schematic view of the water storage unit 30 shown in FIG. 15 and is a shape of the water storage unit 30 sandwiched between the inner circumferential side bulging portion 30a and the outer circumferential side bulging portion 30b. The inner peripheral surface 30b1 of the outer peripheral side raised portion 30b is also formed in the substantially vertical direction, and the depth of the water storage portion 30 is formed to gradually become deeper toward the outer peripheral side from the inner peripheral side with respect to the rotation axis of the inner groove 8. In the inner peripheral side ridge portion 30a, the protrusion 30a1 is provided in order to increase the volume of the water storage portion 30, but the position of the protrusion 30a1 is provided at the inner peripheral end of the inner groove 8, and the volume of the water storage portion 30 can be further increased. .

The shape B is provided with a projection 30b3 extending in the direction of the outer groove 9 at the upper end of the outer peripheral side bulging portion 30b, thereby forming the opposite water supply port 20 Face (over the protrusion 30b3). Therefore, the water supplied from the water supply port 20 hits the upper surface of the projection 30b3 toward the outer groove 9, and the inner peripheral wall of the outer tank 9 can be washed. When the projection 30b3 is too long in the direction of the outer groove 9, the distance between the outer groove 9 and the inner groove 8 is narrowed, and the water is also less likely to flow down the outer peripheral wall of the inner groove 8, so that this adjustment is considered to be a suitable length.

Shape C is provided with a water storage portion on the fluid balancer 8a At the time, a step is provided on the outer peripheral surface 30b2 of the outer peripheral side ridge portion 30b, and the position where the water storage portion 30 is formed is away from the outer peripheral end of the fluid balancer 8a. The more the liquid enclosed in the fluid balancer 8a is located on the outer peripheral side of the fluid balancer 8a, the higher the effect of adjusting the eccentricity is. However, the shape C is formed, and the liquid accommodating portion can be provided wider than the outer peripheral side of the fluid balancer 8a. Therefore, the deterioration of the performance of the fluid balancer 8a can be suppressed to form the water storage portion 30. Further, when the position of the water storage unit 30 is too far away from the outer tank 9, when the water in the water storage unit 30 is scattered toward the outer tank 9, the water does not easily hit the inner peripheral wall of the outer tank 9, so that the water storage unit 30 The position is adjusted in consideration of the distance from the outer groove 9.

The shape D is not provided on the inner peripheral side ridge portion 30a. It is formed smoothly from 30a1, and the inner peripheral side ridges 30a are also easily washed. When the projection 30a1 is provided in the inner peripheral side ridge portion 30a, the volume of the water storage portion 30 can be increased, and water does not easily flow into the inner peripheral side beyond the projection 30a1. Although the volume of the water storage unit 30 is reduced, the inner circumferential side bulging portion 30a is formed to be substantially flat without providing the protrusion 30a1. Therefore, the water is likely to come to the inner circumference side, and the upper surface of the water storage unit 30 is also easily washed.

The shape E is such that an intermediate raised portion 30c is formed between the inner peripheral side raised portion 30a and the outer peripheral side raised portion 30b. Dividing the water storage unit 30 into two The layer, when the water scatters to the outer groove 9, changes the position at which the water of the inner peripheral wall of the outer groove 9 touches. Moreover, the angle of the inner peripheral surface 30b1 of the intermediate raised portion 30c and the outer peripheral side raised portion 30b is changed, and the direction in which the water accumulated in each layer is scattered toward the outer groove 9 can be changed. Further, although it may be divided into two or more layers, when a plurality of ridge portions are formed, the volume of the entire water storage portion 30 is reduced, so that several layers can be appropriately adjusted.

The shape F is a body different from the inner groove 8 and the water storage portion 30 is mounted. structure. Since the mounting is performed in a different body, the members constituting the existing inner tank 8 can be directly used, and it is possible to suppress new equipment investment, special appliance investment, and the like. The shape of the water storage unit 30 to be mounted is not limited to the shape F, and the shape of the water storage unit 30 having the characteristics of the shape A to the shape E may be formed. Further, it is preferable that the water storage portion 30 to be mounted is formed in a size that cannot protrude from the outer peripheral end of the inner tank 8.

Figure 17 shows the water supply port 20 provided in the outer tank cover 9a, A diagram of the arrangement relationship with the water storage portion 30 formed on the fluid balancer 8a. The water supply port 20 is disposed to face the water storage portion 30, and is disposed such that water coming out of the water supply port 20 is supplied with water to the water storage portion 30.

The water supply port 20 is provided with a sprinkler cover 21 (water supply cover) having a plurality of sprinklers 20a arranged in the radial direction of the inner tank 8. When water is supplied from the water supply port 20 in a state where the sprinkler cover 21 is provided, water is supplied from the spout 21a which is located further inside than the outer peripheral side bulging portion 30b to the water storage portion 30, and is further displaced from the outer peripheral side ridge portion 30b. The water from the outer sprinkling port 21a hits the outer peripheral wall of the inner tank 8 and flows. That is, the sprinkler cover 21 is provided, whereby the water storage unit 30 and the outer peripheral wall of the inner tank 8 can be supplied with water.

Figure 18 shows the path from the water supply tank 16 to the outer tank 9. Schematic diagram. The water supply tank 16 is provided with a main water supply solenoid valve 16a, a completion agent/tank cleaning water supply solenoid valve 16b, and is connected to the bath water pump 13 and the water supply paths 16c and 16d. Each of the water supply solenoid valves is connected from a faucet via a hose or the like, and controls the timing of water supply and water supply by opening and closing of the valve.

Opening the water after the main feed water solenoid valve 16a is supplied with water is passed The water supply path 16c is supplied with water from the main water inlet 16e into the outer tank. Though the detailed control is described later, the water that has been supplied from the tank cleaning and water supply chamber 17 by the opening completion agent/tank cleaning water supply solenoid valve 16b is water supplied from the water supply port 20 to the water storage unit 30 through the water supply path 16d. . Further, the water flowing out of the completion agent storage chamber 18 by the opening completion agent/tank cleaning water supply solenoid valve 16b is supplied with water from the main water injection port 16e to the outer tank through the water supply path 16c in the same manner as the water supplied from the main water supply solenoid valve 16a. Inside.

In addition, using the bath water pump 13 to suck up from the water hose The bath water of the port 5 is fed into the outer tank 9 from the main water inlet 16e in conjunction with the water supply path 16c.

As shown in FIG. 19, the washing machine 1 is provided on the control base 11 Control device 100. The control device 100 is configured mainly around the microcomputer 110. The microcomputer 110 includes an operation mode database 111, a project control unit 112, a rotation speed calculation unit 113, a clothing weight calculation unit 114, and the like.

The microcomputer 110 has the readout output from the operation switch 7a The operation mode in the running stroke is started, and the predetermined automatic washing stroke or the function of washing, washing, and dehydration is started.

The engineering control unit 112 is based on the data from the operation mode. The operation mode read by the library 111 controls the functions of each project of the laundry, washing, dewatering, and tank cleaning processes. In each of the projects, the engineering control unit 112 has a function of driving and controlling the water supply unit 12, the drain valve 14, the motor 10a, and the clutch mechanism 10b via the drive circuit.

The rotation speed calculation unit 113 has a basis for detecting the horse The function of detecting the rotational speed of the motor 10a by the detected value of the rotational detecting device 28 of the rotation of 10a.

The clothing type weight calculation unit 114 has a rotation speed according to the use speed The rotation speed calculated by the degree calculation unit 113 and the function of the detection value of the motor current detection device 29 calculate the weight of the clothes in the inner tub 8. Since the load for rotating the inner tank 8 is increased by increasing the weight of the clothes, and the motor current flowing to the motor 10a is required to be increased, the weight of the clothes can be calculated from the motor current and the rotational speed of the motor 10a.

Next, the laundry of the present embodiment will be described with reference to FIGS. 20 to 24 . The operation of the machine 1 will be described. Fig. 20 is a table showing the operation of the washing machine of the embodiment, Fig. 21 is a detailed drawing of the washing operation of the washing machine of the embodiment, and Figs. 22 to 24 are showing the washing of the washing machine of the embodiment. Pattern diagram of the water flow.

In the washing dose sensing project S1, the rotating wing 8d is rotated, and the clothes are rotated. The class weight calculation unit 114 calculates the amount of cloth in the dry state before the water supply from the result of measuring the load amount at this time.

Rotate the water supply project S2 while making the inner groove 8 and/or rotate When the blade 8d rotates, the engineering control unit 112 opens the main water supply solenoid valve 16a, and injects tap water from the main water injection port 16e into the outer tank 9 via the water supply path 16c. Further, the engineering control unit 112 closes the valve after the main water supply solenoid valve 16a is opened for a predetermined time.

In the lotion dissolution project S3, is rotated by the rotating wing 8d The lotion which is placed in the lower side of the rotary vane 8d in the lotion inlet port of the inner tank 8 is dissolved in the water supplied to the water in the rotary water supply project S2 to prepare a high-concentration lotion liquid.

In the water supply project S4, the engineering control unit 112 will supply the main water and electricity The magnetic valve 16a is opened, and tap water is injected into the outer tank 9 from the main water inlet 16e via the water supply path 16c. Further, the engineering control unit 112 closes the valve after the predetermined time has elapsed after the main water supply solenoid valve 16a is opened.

In the soaking and stirring engineering S5, it is made in a state where the water level is low. The rotary wing 8d is rotated to allow the high-concentration lotion liquid made by the lotion dissolution process S3 to penetrate into the clothes.

In the cloth amount sensing project S6, the rotor 8d is rotated, and the clothing weight calculating unit 114 calculates the weight of the clothes in the hydrated state.

In the water supply project S7, the engineering control unit 112 supplies water to the inside of the outer tank 9 in accordance with the weight of the clothes calculated by the washing amount sensing project S1 and the cloth quality of the clothing determined in the cloth sensing project S6.

In the pre-washing process S8, the clothes are washed with a high concentration of the lotion solution.

In the cloth quality sensing project S9, the weight of the clothes calculated by the washing amount sensing project S1 and the weight calculated by the cloth amount sensing project S6 are included. The weight of the clothes in the water state determines the cloth quality (water absorption) of the clothes. The following items are controlled according to the fabric quality of the clothes to be judged.

In the actual laundry engineering S10, the engineering control unit 112 rotates The rotor 8d washes clothes. Further, although not shown, in the actual laundry project S10, the rotary wing 8d is alternately rotated in the reverse direction in the forward direction to perform the unlocking operation. Further, the engineering control unit 112 performs the actual laundry and unwinding works several times in succession. When the actual laundry is finished, monitor the uneven state of the clothes and judge whether or not to move to dehydration.

In the drainage project S11, the engineering control unit 112 opens the drain valve 14. The drainage of the washing water in the outer tank 9 is performed.

In the dehydration project S12, after the drainage is completed, the engineering control department 112 rotates the inner tank 8 to remove water (laundry water) contained in the clothes.

In the rotary sprinkling water project S13, the engineering control unit 112 closes the row The water valve 14 opens the main water supply solenoid valve 16a and supplies the washing water to the outer tank 9. Further, the inner tank 8 is rotated to spread the washing water to all the clothes.

In the dewatering process S14, the engineering control unit 112 rotates the inner groove 8 Turn, take off the clothes and wash the water.

In the rotary sprinkling water project S15, the engineering control unit 112 makes again The inner tank 8 is rotated, the drain valve 14 is closed, the main water supply solenoid valve 16a is opened, the washing water is supplied to the outer tank 9, and the washing water is dispersed into the clothes in the inner tank 8.

In the drainage project S16, the engineering control unit 112 makes the rotary wing 8d and the inner tank 8 are stopped, the drain valve 14 is opened, and the outer tank 9 is drained to wash the water.

After the dewatering project S17, the drainage project S16 is finished, the project The control unit 112 rotates the inner tub 8 to remove water (washing water) contained in the clothes.

In the water supply project S18, the engineering control unit 112, shuts off the drainage The valve 14 opens the main water supply solenoid valve 16a while opening the completion agent/tank cleaning water supply solenoid valve 16b to supply water to the water supply tank 16. The project control unit 112 continuously supplies water to the tank washing and supplying water chamber 17 from the inflow port 17a, and overflows the water from the tank washing and supplying water chamber 17 to the completion agent storage chamber 18. In this way, the completion agent/tank cleaning water supply solenoid valve 16b is opened to continue the supply of water, and the rinse water containing the completion agent is supplied from the outlet port 18a of the completion agent storage chamber 18 and the overflow chamber 19. Further, the time required until the siphon is generated depends on the inflow amount when the completion agent/tank cleaning water supply solenoid valve 16b is opened, the outflow amount of the outlet port 17b of the tank washing water supply chamber 17, and the tank washing water supply chamber 17 The volume, the volume of the completion agent storage chamber 18, and the like.

Moreover, after a predetermined period of time, the finisher/tank wash is turned off. When the water supply solenoid valve 16b is cleaned, almost all of the liquid in the completion agent storage chamber 18 flows out into the outer tank by the siphon phenomenon. In the water supply process S18, the water is supplied to the tank cleaning water supply chamber 17. Therefore, the water supply is supplied from the tank cleaning water supply port, but it can be used as washing water, so that it is not wasted.

In the stirring process S19, the engineering control unit 112 collects the water in the water The inner tank 8 is rotated while being accumulated in the outer tank 9, and is washed while stirring the clothes.

Next, the drawing is appropriately referred to along the engineering table of FIG. 22 to 24, the tank cleaning operation will be described on one side. Figure 21 shows A detailed control drawing from the tank cleaning project S20 to the dewatering S25.

First, the tank cleaning process S20 will be described. engineering The control unit 112 determines whether or not the washing water is equal to or lower than the predetermined water level s. When the water level is higher than the predetermined water level s, the drain valve 14 is opened to drain the water. The predetermined water level s is, for example, a water level higher than the bottom surface of the inner tank 8 and the bottom surface of the rotary wing 8d. When the predetermined water level s is below, the drain valve 14 is closed. In this way, the drainage of a part of the water used in the washing process is performed, and the remaining washing water is accumulated in the bottom of the outer tank 9, and the inner tank 8 and the rotary wing 8d are rotated in one direction or rotated forward and backward to make a predetermined schedule. The time (for example, 70 to 120 s) is washed and adhered to the upper and lower surfaces of the bottom surface of the inner tank 8, the lower surface of the bottom surface of the rotary wing 8d, and the remaining water of the dirt on the upper surface of the bottom surface of the outer tank 9. The number of rotations at this time is set to be lower than that in the case of the laundry process, and is set to be lower than 70 rpm and 300 rpm, for example.

Here, the inner groove 8 and the rotary wing 8d can also be rotated simultaneously. It is also possible to rotate only the inner groove 8 and the rotary wing 8d. When the inner groove 8 is rotated only by rotating the rotary blade 8d, the lower surface of the bottom surface of the rotary blade 8d and the bottom surface of the inner groove 8 can be efficiently cleaned compared with the case where both the rotary blade 8d and the inner groove 8 are rotated. The top. Further, even if the inner rotor 8 is rotated and only the rotary vane 8d is rotated, the lower surface of the bottom surface of the rotary vane 8d and the bottom surface of the inner tank 8 can be efficiently cleaned compared to when the inner tank 8 and the rotary vane 8d are rotated. On the top, since the lower surface of the bottom surface of the inner tank 8 and the upper surface of the bottom surface of the outer tank 9 cannot be cleaned, a process of rotating the inner tank 8 is additionally provided.

Moreover, the drain is opened while the rotary wing 8d is rotating The valve 14 begins to drain and enters the drainage project S21 (intermediate drainage). hit The timing at which the drain valve 14 is opened varies depending on the amount of water accumulated in the bottom of the outer tank 9, the drainage performance, and the like. However, in the present embodiment, the valve is opened about 50 seconds after the stirring of the remaining water. Further, during the rotation of the rotary wing 8d, by completely draining the water in the outer tank 9, it is possible to prevent the dirt temporarily falling by the back surface of the rotary blade 8d and the bottom surface of the inner tank 8 from being again attached to the dirt. The case of the reverse side of the rotary wing 8d. Further, the drain does not end during the rotation of the rotary wing 8d, and even if the rotary wing 8d is stopped in the middle of the drain, as long as the water level has been drained to a lower water level than the bottom of the rotary wing 8d at the time of the stop of the rotation, the drainage can be suppressed. Reattachment of the reverse side of the rotary wing 8d. Further, as long as the water level can be drained to the lowermost portion of the inner bottom surface of the inner tank 8 during the rotation of the inner tank 8, the dirt can be prevented from reattaching to the bottom of the inner tank 8, as long as the inner tank 8 is rotated. Draining to a lower water level than the lowermost portion of the outer bottom surface of the inner tank 8 suppresses the dirt from adhering to the bottom of the inner tank 8.

Next, move to the tank to wash the sprinkler (1) project S22. In the tank, the sprinkling water (1) is carried out in the step S22, and the completion/closing tank water supply solenoid valve 16b is repeatedly opened and closed at predetermined time intervals, and only the tank washing water supply chamber 17 is supplied with water to supply water to the water storage tank. Part 30. The water is allowed to overflow from the tank washing and supplying water chamber 17, and when the water flows into the finishing agent accommodating chamber 18, it becomes the remaining water in the finishing agent accommodating chamber 18, and is discharged from the outlet 18a of the finished agent accommodating chamber 18 by siphoning. When it reaches the outer tank, it will not waste water to the water storage part.

The opening/closing time of the completion agent/tank cleaning water supply solenoid valve 16b is changed by the water channel pressure, and the high water pressure is increased compared with the low water pressure. The valve opening time of the agent/tank washing water supply solenoid valve 16b. For example, when the water pressure is "4 L/min ≦ Q ≦ 6 L/min" (high water pressure), the finisher/tank washing water supply solenoid valve 16b is repeatedly turned ON for 3.5 seconds for 6 seconds. When the water pressure is "3 L/min ≦ Q < 4 L/min" (low water pressure), the finisher/tank washing water supply solenoid valve 16b is repeatedly turned off for 6 seconds to 6 seconds. The opening/closing time of the completion agent/tank cleaning water supply solenoid valve 16b is such that the water does not overflow from the tank cleaning water supply chamber 17, and the water in the water supply chamber 17 is not washed in order to continuously supply water to the water storage portion. The empty way to decide. Therefore, the larger the volume of the tank washing water supply chamber 17, the longer the valve opening time of the finisher/tank washing water supply solenoid valve 16b can be increased, and the control becomes easy. For example, the volume is increased more than the finisher accommodation chamber 18.

As shown in FIG. 22, sprinkling from the upper portion of the water storage portion 30 The water from the spout of the water cap 21 is water that is stored in the water storage unit 30, and is discharged from the water spout 21a of the sprinkler cover 21 on the outer peripheral side of the water storage unit 30, and is transferred to the fluid balance. The outer peripheral wall of the device 8a and the outer peripheral wall of the inner groove 8 flow.

As shown in Figure 23, when the water supply is continued, the water is supplied to The amount of water in the water storage unit 30 exceeds the volume of the water storage unit 30, and the water overflows from the outer peripheral side bulging portion 30b. The water overflowing from the water storage portion 30 flows along the outer peripheral wall of the inner tank 8 through the outer peripheral wall of the fluid balancer 8a. Thus, the water flows in the outer peripheral wall of the inner tank 8, and the dirt adhering to the outer peripheral wall of the inner tank 8 can be washed away.

At this time, since the water is supplied while rotating the inner tank 8, the water can be completely overflowed from the outer peripheral side bulging portion 30b. Moreover, the water flowing down the outer peripheral wall of the inner tank 8 easily follows the path of the initial flow, especially When the amount of water is small, the path of the water flow is easily fixed. As a result, water does not flow around the outer peripheral wall of the inner tank 8, and a linear washing spot is generated. Therefore, do not allow the rotation of the inner groove 8 to rotate forward and backward in only one direction to change the path of the water flow to allow the water to pass through. Further, although the amount of water is increased, the linear washing spots can be prevented, and when the front and back rotations are performed, the inner tank 8 can be completely washed with a smaller amount of water.

Positive and negative rotation, is repeated 6 times each 20s positive rotation and inverse Rotate and total for 120s. Although the operation time may be set in advance, it may be determined based on the execution results of various sensing such as dirt sensing, odor sensing, and washing density sensing. In the present embodiment, although about 5 L of water is supplied, the amount of water supplied can be appropriately changed in accordance with the time of forward and reverse rotation. It is not a positive or negative rotation but a rotation in one direction is an increase in the amount of water supplied. The number of rotations (rotational speed) of the forward and reverse rotations is performed at about 30 rpm (rotation revolutions per minute). Although the number of rotations is appropriately adjusted so that the water overflows from the water storage unit 30, it is preferably 5 rpm to 60 rpm, more preferably 20 rpm to 40 rpm. When the number of rotations is too low, water does not easily overflow from the outer peripheral side bulging portion 30b. When the number of rotations is too high, the water of the water storage portion 30 does not contact the outer peripheral wall of the inner tank 8, but between the inner tank 8 and the outer tank 9. It is dropped or scattered toward the outer groove 9 side, and the outer peripheral wall of the inner tank 8 cannot be washed.

At this point, although the tank is washed and sprinkled (1) in the project S22 The control for mainly cleaning the outer peripheral wall of the inner tank 8 will be described, but the control of the inner peripheral wall of the outer tank 9 in the washing water sprinkling (2) project S24 will be described next.

Wash and sprinkle in the tank (1) Project S22 ends the positive and negative rotation Thereafter, the finisher/tank washing water supply solenoid valve 16b is closed, and the water supply to the water storage unit 30 is stopped. Then, the process proceeds to the draining process S23, the drain valve 14 is opened, and the water accumulated in the bottom of the outer tank 9 during the forward and reverse rotation is slowly discharged, and is returned to the water level for dehydration start. After the water level in the outer tank 9 becomes the water level for dehydration start, the drain valve 14 is closed to stop the draining and to the tank washing and sprinkling water (2) project S24.

Transfer to the tank to wash the sprinkler (2) Project S24 for dehydration At startup, the drain valve 14 is opened. Moreover, the water supply to the water storage unit 30 is restarted, and the number of rotations of the inner tank 8 is accelerated in a state where water is accumulated in the water storage unit 30. As a result, as shown in FIG. 24, the water accumulated in the water storage portion 30 is scattered toward the outer groove 9 by the centrifugal force beyond the outer peripheral side bulging portion 30b, and flows into the inner peripheral wall of the outer groove 9. Thereby, since not only the amount of water to be supplied with water but also the amount of water accumulated in the water storage portion 30 is poured into the inner peripheral wall of the outer tank 9 at a time, the washing spots are less likely to occur and the inner peripheral wall of the outer tank 9 can be completely washed.

At this time, the greater the acceleration of rotating the inner groove 8, the one time The water accumulated in the water storage portion 30 is caused to scatter in the outer tank 9. On the other hand, when the acceleration is small, the number of rotations of the inner tank 8 reaches the number of rotations of the water in the water storage unit 30 to the outer tank 9, and most of the water in the water storage unit 30 is not poured on the inner peripheral wall of the outer tank 9. On the other hand, the outer peripheral side bulging portion 30b is dropped between the outer peripheral wall of the inner tank 8 and the inner tank 8 and the outer tank 9. Therefore, the amount of water that hits the inner peripheral wall of the outer tub 9 is reduced.

For the above reasons, in order to accumulate more in storage at a time The water of the portion 30 is poured on the inner peripheral wall of the outer groove 9, so that the number of rotations of the inner groove 8 is urgent Acceleration is better. Therefore, the acceleration in which the inner tank 8 is rotated in a state where water is accumulated in the water storage unit 30 is preferably 20 rpm/s (acceleration of 20 rpm increase in one second), and is desirably 40 rpm/s or more. In the present embodiment, the temperature is 50 rpm/s or more, and the upper limit of the acceleration is a value considering the performance and vibration of the motor to be used. Further, the timing of starting the water supply to the water storage unit 30 is such that the amount of water scattered during acceleration can be increased before the number of rotations of the inner tank 8 is accelerated.

In this embodiment, in order to return to the water level for dehydration start-up Since the water level in the outer tank 9 is measured, the rotation of the inner tank 8 is stopped, but the rotation is accelerated without stopping the rotation, and the number of rotations is increased, and the operation time can be shortened. At this time, since the state in which the inner tank 8 is rotated is accelerated, the water accumulated in the water storage unit 30 is slightly overflowed. Therefore, the amount of water scattered toward the inner peripheral wall of the outer tank 9 is higher than the state from the stop of the inner tank 8 to Accelerate more and reduce.

Therefore, to make more water scattered, although it is expected to When the state in which the groove 8 is stopped is accelerated, it is preferable to accelerate the state in which the inner groove 8 is stopped from the state of rotation to the acceleration. Further, when the outer peripheral side ridge portion 30b of the water storage portion 30 is formed higher than the inner circumferential side ridge portion 30a, the amount of water overflowing from the water storage portion 30 during the rotation of the inner tank 8 can be suppressed, and the operation time can be shortened.

After the number of rotations of the inner tank 8 is accelerated to about 130 rpm, temporarily Stop accelerating. Then, the inner tank 8 is continuously rotated to supply water to the water storage portion 30 while rotating. Although the acceleration is stopped, the number of rotations of the inner tank 8 reaches the number of rotations of the water in the water storage unit 30 to the outer tank 9, so that the water is supplied. The water to the water storage portion 30 scatters toward the outer groove 9 beyond the outer peripheral side bulging portion 30b, and continues to touch the inner peripheral wall of the outer groove 9. Thereby, the water which hits the inner peripheral wall of the outer tank 9 falls, and the dirt adhering to the inner peripheral wall of the outer tank 9 is wash|cleaned. This operation is performed for a predetermined time (about 80 s), and the total amount of water supplied is about 3 L during this period. After the predetermined time has elapsed, the water supply to the water storage unit 30 is stopped, and the tank is washed and sprinkled (2), and the work S24 is completed.

Here, for the tank washing and sprinkling (2) project S24 In addition, the inner tank washing operation for discharging water from the water storage unit 30 is not performed and omitted, and it is possible to suppress the tank washing and watering (2). In other words, after the water storage unit 30 accumulates water, only the number of rotations of the inner tank 8 in which the number of rotations of the inner tank 8 is accelerated to cause the water to scatter is performed, and the number of rotations of the inner tank 8 which is increased in the outer tank washing operation can be directly used. It is not easy to become an extension of the dehydration operation time by moving to the dehydration project S25. Since the dehydration of the clothes is performed even in the outer tank washing operation, the outer tank washing operation can be simultaneously performed as part of the dewatering process S25.

Further, after the water storage unit 30 accumulates water, the number of rotations of the inner tank 8 is accelerated to allow the water to scatter the outer tank washing operation, and may be performed plural times. In other words, after the water in the water storage unit 30 is scattered, the number of rotations of the inner tank 8 is decelerated, and the water is again accumulated in the water storage unit 30 to perform an operation of accelerating the number of rotations of the inner tank 8. At this time, since the number of rotations of the inner tank 8 is temporarily lowered, the time is prolonged. However, since the outer tank is washed at a large amount of water at a time, the inner tank 8 is rotated at a substantially constant speed while continuing to disperse the water. The tank washing can be washed efficiently, so that the amount of water supplied can be suppressed to achieve water saving.

Moreover, in the present embodiment, the inner tank is cleaned during the operation. Although the number of rotations of the groove 8 is accelerated to about 130 rpm, the primary resonance point where the vibration is increased may be 70 to 90 rpm. Therefore, when the number of rotations of the inner tank 8 is passed through the resonance point several times, the risk of vibration is increased. Therefore, when the outer tank cleaning operation for accelerating the number of rotations of the inner tank 8 is performed in a state where water is accumulated in the water storage unit 30, the number of rotations of the inner tank 8 is 60 rpm or less, and vibration can be suppressed from being washed.

At the same time, because the second resonance point exists near 250 rpm, Therefore, when the inner tank 8 is rotated at a constant speed and the outer tank is cleaned by the water storage unit 30, the number of rotations of the inner tank 8 is set between the primary resonance point and the secondary resonance point. ~240rpm is preferred. When water is supplied to the water storage unit 30 in a state where the number of rotations of the inner tank 8 is increased after the secondary resonance point, since a large amount of water is not scattered to the outer tank cover 9a, the timing of the water supply is considered. This is set. Here, as in the present embodiment, in the case of a fully automatic washing machine which does not have a drying function and does not have an inner cover, it is only possible to prevent the water from bouncing up to the above-mentioned number of rotations at a high speed, but there is an inner cover for sealing the outer tank. In the case of the washer-dryer, the outer tank washing operation can be further performed while rotating at a high speed.

Next, the process proceeds to the dehydration process S25. Dehydration project S25, In the state in which the tank washing sprinkling water (2) works S24 to rotate the inner tank 8, the number of rotations of the inner tank 8 is accelerated to about 200 rpm. The number of rotations of the inner tank 8 rises, and the water remaining in the water storage portion 30 scatters to the inner peripheral wall of the outer tank 9, and the inner peripheral wall of the outer tank 9 is washed.

In the dewatering project S25, the rotation of the inner tank is accelerated step by step. The number was rotated at about 850 rpm to remove moisture contained in the clothes. In addition, by the user's setting, there is also a rotation at about 1000 rpm. After the tank washing and sprinkling (2) project 24, the inner tank 8 is rotated at a high speed to perform the dewatering process S25, and the water accumulated in the water storage unit 30 is almost completely scattered, so that the water does not easily remain in the water storage unit 30. It will not be the cause of moisture and scale. Further, since the moisture contained in the clothes flies out to the outside of the inner tub 8 through the through hole 8c and hits the inner surface of the outer tub 9, the inner peripheral wall surface of the outer tub 9 can be cleaned. Then, when the dehydration of the clothes is finished by the dehydration process S25, all the operation works are completed.

As described above, in the washing machine 1 of the present embodiment, the outer tank cover 9a is provided with the tap water supplied from the water supply unit 12 to the water storage portion formed on the fluid balancer 8a provided on the upper portion of the inner tank 8. 30 water supply port 20. Further, the water supply port 20 is provided with a sprinkler cover 21 having a plurality of sprinkling ports 21a in the radial direction of the inner tank 8.

The water storage unit 30 is formed by being sandwiched by the inner circumferential side bulging portion 30a and the outer circumferential side bulging portion 30b. The outer peripheral side raised portion 30b is formed to be higher than the inner peripheral side raised portion 30a, and the inner peripheral surface 30b1 and the outer peripheral surface 30b2 of the outer peripheral side raised portion 30b are formed substantially perpendicularly. The depth of the water storage portion 30 is deeper than the inner circumferential side closer to the rotation axis of the inner groove 8 than the outer circumferential side.

While the inner tank 8 is rotating in the forward and reverse directions, water is supplied from the sprinkler cover 21, and a part of the water is stored in the water storage portion 30, and a part of the water is transferred to the outer peripheral wall of the inner tank 8. When the water supply is continued in this manner, the water overflowing from the water storage portion 30 flows to the outer peripheral wall of the inner tank 8. At this time, since the water is overflowed while rotating the inner tank 8, the overflow position is not easily displaced, and the water flows to the inner tank. 8 outer peripheral wall. Further, the forward and reverse rotation is performed, whereby the path of the water flow is not easily spread over the entire outer peripheral wall of the inner tank 8 by the fixed water. As a result, dirt and garbage can be prevented from adhering to the outer peripheral wall of the inner tank 8, so that the growth of mold, the occurrence of malodor, and the like can be suppressed, and the inner tank 8 can be kept clean. Furthermore, it is also possible to prevent or inhibit the adhesion of the garbage to the laundry.

And in the state in which the water storage unit 30 supplies water to the water, The number of rotations of the inner tank 8 is accelerated, and the water of the water storage portion 30 is once scattered toward the outer tank 9. When the water flows into the tank for washing, when the amount of water is small, the path of the water flow is fixed, and the linear washing spots are generated, because the water accumulated in the water storage portion 30 flows once to the inner peripheral wall of the outer tank 9. Therefore, the inner peripheral wall of the outer tank 9 can be completely washed. Therefore, since dirt and garbage can be suppressed from adhering to the inner peripheral wall of the outer tub 9, it is possible to suppress the growth of mold, the occurrence of malodor, and the like, and to keep the outer tank 9 clean. Furthermore, it is also possible to prevent or inhibit the adhesion of the garbage to the laundry.

Also, wash the water from the tank (2) and move to S24. Since the water can start dehydration in a state where the inner tank 8 is rotated, the operation time for the tank washing and sprinkling operation can be shortened. Further, the tank washing and sprinkling operations S22 and S24 may be performed between or before and after the respective washing processes, but the final dewatering advancement behavior of the water in the outer tank 9 as much as possible in a clean state is desirable. In addition, when the tank washing and sprinkling (2) operation S24 is performed after the final dewatering, water may remain in the water storage unit 30, which may cause moisture and scale.

Further, in the washing machine of the present embodiment, the water supply tank 16 is provided with the tank washing water supply chamber 17 and the finished agent storage chamber 18. The tank washes the water supply chamber 17, The partition plate A having the lowest height among the walls constituting the tank washing and supplying water chamber 17 is provided, and the water overflowing from the tank washing and supplying water chamber 17 flows into the finished agent storage chamber 18 over the partition plate A. Therefore, only the control of the completion/tank cleaning water supply solenoid valve installed in the tank washing and supplying water chamber 17 can supply water to the tank washing and supplying water chamber 17 and the finished agent storage chamber 18. When the control device 100 supplies water to the tank washing and supplying water supply chamber 17, the water supply solenoid valve is opened and closed by a predetermined time interval, and the water is supplied without overflowing from the tank washing water supply chamber 17. Further, when the control device 100 supplies water to the completion agent storage chamber 18, the water supply to the tank cleaning water supply chamber 17 and the completion agent storage chamber 18 can be supplied when the completion agent/tank cleaning water supply solenoid valve is continuously opened.

In the present embodiment, the finished agent accommodating chamber 18 in the water supply tank 16 Although the completion agent is contained, it is not limited to this, and it can also contain a bleaching agent and other medicines. Further, in the washing machine having the water-cooling drying function, the water supply chamber for the cooling water that supplies the cooling water from the outflow port 17b may be replaced with the tank washing water supply chamber 17. At this time, the steam in the outer tank may be discharged to the outside of the machine via the water supply tank 16, but a check valve may be provided in the water supply path for the cooling water to prevent it.

Further, in the present embodiment, it is shown that water is supplied from the solenoid valve. When the first water supply chamber is used as the cooling water for the tank cleaning, and the second water supply chamber into which the water overflowing from the first water supply chamber flows is used as the completion agent, the first water supply chamber may be used as the cooling water. The second water supply chamber can be used as a bleaching agent, etc., and can be changed as appropriate.

25 and 26 show other embodiments. In this embodiment, the control up to the final cleaning 2 is the same as in the first embodiment. However, since the control after this is different from that of the first embodiment, the portion will be specifically described.

In this embodiment, as shown in FIG. 25, the final mixing project At S19, the process proceeds to the draining process S20, and the engineering control unit 112 stops the rotor 8d and the inner tank 8, opens the drain valve 14, and discharges the washing water used for washing 2 at a time.

After that, move to the tank to wash the water (1) project S21, off The drain valve 14 is closed, and the completion tank/tank cleaning water supply solenoid valve 16b is opened to supply water to the water storage unit 30 while rotating the inner tank 8. Then, similarly to the tank washing and sprinkling water (1) of the first embodiment described above, the dirt adhering to the outer peripheral wall of the inner tank 8 is washed away by the water overflowing from the water storage portion 30. At this time, the washed water used in the outer peripheral wall of the inner tank 8 is accumulated in the bottom of the outer tank 9.

When the predetermined time elapses, the tank cleaning process S22 is performed. to In this state, the relatively clean water supplied to the water after the final washing is accumulated in the bottom of the outer tank 9, and the inner tank 8 and the rotary vane 8d are integrally rotated at a rotation speed of 70 rpm or more and 300 rpm or less, thereby preventing dirt adhesion. The reverse side of the rotary wing 8d, the bottom surface of the inner groove 8, and the bottom inner surface of the outer groove 9.

Moreover, in such residual water agitation, the drain valve is opened 14 Enter the drainage project S23. Further, during the rotation of the rotary wing 8d, almost all of the water is drained, whereby the dirt dropped by the washing can be prevented from adhering to the reverse surface of the rotary blade 8d again.

Then, the process proceeds to the tank washing and sprinkling (2) project S24, and the water supply to the water storage unit 30 is restarted in a state where the drain valve 14 is opened. The number of rotations of the inner tank 8 is accelerated in a state where water accumulates in the water storage unit 30. Therefore, in the same manner as the tank washing and sprinkling (2) of the above-described first embodiment, not only the amount of water to be supplied with water but also the amount of water accumulated in the water storage portion 30 is poured together in the inner peripheral wall of the outer tank 9, so the washing is performed. The plaque is not easy to occur and the inner peripheral wall of the outer tank 9 can be completely washed.

In the first embodiment, the back surface of the rotary blade 8d is washed by the water used for the final cleaning. In the present embodiment, the water used in the final cleaning is not used, but the re-supply is used. Since the tap water is washed on the reverse side of the rotary wing 8d or the like, there is an advantage that the reverse surface of the rotary wing 8d can be cleaned more cleanly.

Claims (7)

A washing machine comprising: a casing; an outer tank supported by the inside of the casing for storing water; an inner tank encased in the outer tank and containing the laundry; and disposed at an inner bottom surface of the inner tank a rotary wing; a driving device for driving the rotary wing; a water supply means for supplying water into the outer tank; and a drain valve for storing water in the outer tank by closing the valve, and opening the valve from the outer groove A washing machine that discharges water and has a laundry process, a washing process, and a dewatering process, wherein a water storage portion capable of storing water is formed on the inner tank, and is discharged after being drained by the water used in the washing process. In the drain valve, the rotary vane is rotated by a higher number of rotations than in the laundry process while the bottom of the outer tank is filled with water, and the drain valve is opened during the rotation of the rotary vane to store water. After the water storage unit, the number of rotations of the water tank is accelerated, and water is scattered from the water storage unit to perform an outer tank washing operation for performing the washing of the outer tank. The washing machine according to claim 1, wherein the water level is drained to a lower level than the bottom of the rotary wing during the rotation of the rotary wing. The washing machine according to claim 1 or 2, wherein the rotating blade has a rotation speed higher than a rotation speed of the rotary wing in the washing machine in a state where water is accumulated in a bottom of the outer tub. The rotation speed is rotated. The washing machine according to claim 1 or 2, wherein the rotating blade is integrally rotated with the inner groove. The washing machine according to the first aspect of the invention, wherein, in a state in which the drain valve is closed, the driving device is driven to rotate the inner tank, and the water supply means supplies water to the upper portion of the inner tank, in the inner tank or After the water flowing around the peripheral wall of the outer tank accumulates at the bottom of the outer tank, the drain valve is opened while the rotor is rotating. The washing machine according to the first aspect of the invention, wherein the drain valve is opened to perform drainage of water used in the cleaning process, and when the water stored in the bottom of the outer tank becomes a predetermined water level, the drain is closed. valve. The washing machine according to claim 1, wherein after the draining of the water used in the washing and cleaning process, the drain valve is closed, and the bottom of the outer tank is supplied with water to a predetermined water level by the water supply means.