TW201506222A - Washing machine - Google Patents

Abstract

This invention is a washing machine which can increase cleaning power by preventing uneven distribution of detergent-mixed water onto laundry. The solution comprises: a cylindrical part (34b) having a central axis which is along substantially vertical direction; a water inlet (34c) allowing entrance of detergent-mixed water via a substantially tangential direction around the cylindrical part (34b); and an enlarged diameter part (34e) in which the passage that faces an outlet (34a) has an enlarged cross-section. This design allows detergent-mixed water flow at the inlet (34c) that enters into the cylindrical part (34b) to generate a rotating flow; furthermore, the centrifugal force generated by this rotating flow allows detergent-mixed water to spray out via the outlet (34a).

Description

washing machine

The present invention relates to a washing machine having a watering function for sprinkling water on laundry.

In the laundry stroke of the washing machine, a high detergency can be obtained while reducing the physical strength acting on the laundry by effectively utilizing the chemical detergency of the lotion. In addition, in recent years, in order to prevent global warming, home appliances have become more and more energy-efficient. In terms of energy saving means, although the water saving in the washing machine is effective, when the amount of water is reduced, the washing water cannot be sufficiently spread to the laundry, and the washing power and the washing ability are deteriorated. Here, there is proposed a washing machine in which a flushing pump that sucks the washing water accumulated in the bottom of the washing tub from the upper side of the washing tub by a circulation pump (see, for example, Patent Documents 1 and 2).

[Advanced technical literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2012-223305

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2007-282934

However, in the washing machines described in Patent Documents 1 and 2, when the amount of the laundry increases, the distance between the water spout and the laundry becomes short, so that the range in which the washing water cannot be sprinkled to the laundry is increased, because the washing water is poured. If the amount of laundry is not increased, there is a case where the activity of the laundry in the laundry tank is deteriorated. Therefore, there is a problem that the degree of uniform dispersion of the washing water is deteriorated, the unevenness of washing is increased, and the detergency is lowered.

SUMMARY OF THE INVENTION An object of the present invention is to provide a washing machine which can improve the washing power without unevenly dispersing washing water to the laundry.

The present invention is characterized by comprising: an outer tank for accumulating washing water; an inner tank as a washing and dewatering tank rotatably provided in the outer tank; and a rotary wing rotatably provided at a bottom portion of the inner tank And a washing water circulation mechanism that circulates the washing water in the outer tank from above the inner tank to the inner tank, wherein the washing water circulation mechanism includes the washing water at a bottom of the outer tank and the a circulation path that circulates between the upper sides of the inner tank; a circulation pump that circulates the washing water; and a sprinkling water that is provided in the circulation path to sprinkle the washing water into the inner tank, the sprinkling water having: facing the inside a spout of the slot opening; And a flow path section enlarged portion in which the flow path sectional area is enlarged toward the discharge port.

According to the present invention, there is provided a washing machine which can reduce the unevenness of washing without unevenly dispersing washing water to the laundry, and can also improve the washing power.

100‧‧‧Washing machine

1‧‧‧ frame

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

10‧‧‧ outer trough

11‧‧‧Pulsating wing disc (rotary wing disc)

16‧‧‧Circulating pump

17‧‧‧Circulation pipe (circulation road)

34‧‧‧ sprinkler

34a‧‧‧Exporting

34b‧‧‧Cylinder

34c‧‧‧ water inlet

34e‧‧‧Expanded section (flow path section enlargement)

50‧‧‧Washing water circulation mechanism

Fig. 1 is an external view showing a washing machine according to an embodiment of the present invention.

Fig. 2 is a longitudinal sectional view showing a schematic structure of a washing machine according to an embodiment of the present invention.

Fig. 3 is a perspective view showing a pulsating blade of a washing machine according to an embodiment of the present invention.

Fig. 4 is a plan view showing a tank cover of a washing machine according to an embodiment of the present invention.

Fig. 5 is a partial plan view showing a circulating water cap mounting portion on the lower surface of the tank cover of Fig. 4;

Fig. 6 is an external perspective view of the circulating water cover viewed from below.

Fig. 7 is a plan view showing the inside of a circulating water cover.

Fig. 8 is an enlarged cross-sectional view taken along line A-A of Fig. 7;

FIG. 9 is an enlarged cross-sectional view taken along line B-B of FIG. 7. FIG.

Fig. 10 is a schematic view showing a water injection mode in accordance with the amount of laundry.

Fig. 11 is a schematic view showing a sprinkling range.

Fig. 12 is a block diagram showing a control system of the washing machine in the embodiment of the present invention.

Fig. 13 is a flow chart showing a part of control processing of the washing machine in the embodiment of the present invention.

Fig. 14 is a flow chart showing another part of the control process of the washing machine in the embodiment of the present invention.

In the following, the embodiment for carrying out the present invention (hereinafter referred to as "the embodiment" will be described in detail with reference to an appropriate drawing. Further, in the following, a washing machine capable of washing, washing, dehydrating, and drying may be used. The vertical type laundry dryer is described as an example, but it is also applicable to a washing machine (so-called fully automatic washing machine) which can be washed, washed, and dehydrated.

Fig. 1 is an external view of a washing machine according to an embodiment of the present invention, and Fig. 2 is a longitudinal sectional view showing a schematic structure of a washing machine according to an embodiment of the present invention. In the following description, the direction when the washing machine 100 is viewed from the front will be described as a reference.

As shown in Fig. 2, the washing machine 100 is composed of a casing 1, a washing and dewatering tank 9 (inner tank), an outer tank 10, a pulsating wing 11 (rotary wing), a washing water circulation mechanism 50, and the like.

As shown in Fig. 1, the casing 1 is formed by combining a steel plate and a resin molded article to form a periphery, and a washing tub (outer tank 10, washing and dewatering tank 9, see Fig. 2) is accommodated therein. Further, a top cover 2 is provided on the upper portion of the casing 1. The top cover 2 is provided with an outer cover 3 that opens and closes the upper portion of the washing tub. Cover 3 The structure is bent at the center and provided with an operation panel 8 on the front side, and the operation panel is provided with various operation button switches 6, 6a and displays 7, 25. The operation panel 8 is electrically connected to a microcomputer 40 (hereinafter, a brief microcomputer, see FIG. 2) provided at the bottom of the body. Further, a power switch 5 is provided on the front surface of the top cover 2. Further, in the rear portion of the top cover 2, water supply solenoid valve 4, heater 20 (see Fig. 2), blower fan 19 (see Fig. 2), and the like are provided with water supply and drying related parts, in the top cover 2 The inside of the outer cover 3 is provided with a lotion ‧ complete agent container 28 (see Fig. 2).

As shown in Fig. 2, the washing and dewatering tank 9 is formed with a plurality of small through holes 9a for water passage and ventilation on the outer peripheral wall thereof, and a plurality of through holes 9b for water passage and ventilation are formed in the bottom wall. Further, the washing and dewatering tank 9 is provided with a fluid balancer 9c at its upper edge portion, and the pulsating wing 11 (rotary wing) is rotatably attached to the bottom.

The outer tank 10 constitutes an inner package washing and dewatering tank 9, and has a washing and dewatering driving device for driving the washing and dewatering tank 9 and the pulsating blade 11 on the outer side of the bottom portion. Moreover, although the outer tank 10 is not illustrated, it is locked at the four corners provided in the upper end part of the frame 1, and the four support rods which are suspended are elastically supported by the frame via a buffer device. The center of the interior.

The washing and dehydrating driving device is a motor 13 and an electromagnetically operated clutch mechanism (clutch) 12 and a planetary gear reduction mechanism which are provided with a built-in inverter driving motor or a reversible capacitive phase split single phase induction motor. Further, the washing and dehydrating driving device selectively performs the control of the motor 13 and the clutch 12 by the microcomputer 40, thereby causing washing And the dewatering tank 9 is statically stuck, or in a state where the freely rotatable liberation is performed, the pulsating blade 11 is reversely rotated in the washing drive mode; and the washing and dewatering tank 9 and the pulsating blade 11 are integrally formed in the same direction. The function of the dehydration drive mode that rotates in the direction.

Further, a vibration sensor 27 is attached to the outer surface of the outer tub 10. The vibration sensor 27 detects the vibration at the time of dehydration in which the washing and dewatering tank 9 performs high-speed rotation.

Further, an upper portion of the outer tub 10 is provided with an upper portion that closes the washing and dewatering tank 9, and the tank cover 10a of the upper portion of the outer tub 10 is closed.

Further, a gas trap 21a is provided at the bottom of the outer tank 10. The air trap 21a transmits the internal pressure to the water level sensor 21 via the duct 21b to detect the water level of the washing water in the outer tank 10.

The washing water circulation mechanism 50 is constituted by a circulation pump 16, a circulation pipe (circulation path) 17, a circulating water cover 30, and the like.

The circulation pump 16 is provided at the bottom of the body, and has a function of sucking the washing water from the water vent 10b provided at the bottom of the outer tank 10 toward the circulating water inlet 33 of the circulating water cover 30 via the circulation pump 17.

The foreign matter replenisher 18 is provided in the middle of the circulation pipe 17, and the drain hose 24 is connected to the upstream side of the foreign material replenisher 18 via the drain valve 15.

When the circulation pump 16 is driven, the washing water in the outer tank 10 is transported from the water vent 10b provided at the bottom of the outer tank 10 to the upper portion of the outer tank 10 through the circulation pipe 17, and enters the circulating water cover from the circulating water inlet 33. The circulating water path 37 (see FIG. 5) of 30, the wire dust filter 38 (refer to FIG. 5) removes the wire dust, and flows into the washing and dewatering tank 9 from the water sprinkling pipe 34 (refer to FIG. 5). The arrow is printed on the ground.

Further, the washing machine 100 is provided with rubber bellows tubes 29a, 29b, 29c, 29d, 29e, and 29f. The bellows tubes 29a to 29f are the outer tank 10 for displacing the vibration, the tank cover 10a, the drying passage 22 provided on the fixed side (the frame 1, the top cover 2, etc.), the water supply solenoid valve 4, and the circulation pump 16th connection.

The drying duct 22 is connected between the water passing vent 10b and the warm air blowing port 22a (see FIGS. 4 and 5). Further, a blower fan 19, a heater 20, a batt filter (not shown), a dehumidifying mechanism 22b, and a temperature sensor 26 are provided in the middle of the drying duct 22. When the blower 19 is operated, when the heater 20 is energized, warm air is blown into the washing and dewatering tank 9, and the laundry in the washing and dewatering tank 9 is heated to evaporate water. The high-temperature and high-humidity air is discharged to the outer tank 10 through the through holes 9a and 9b, and is sucked into the drying duct 22 from the water passing vent 10b, and is cooled and dehumidified by the cooling water flowing down the dehumidifying mechanism 22b to become a dry low temperature. The air is heated again in the heater 20, and is circulated by being blown into the washing and dehydrating tank 9.

Fig. 3 is a perspective view showing a pulsating wing of the washing machine according to the embodiment of the present invention.

As shown in Fig. 3, the pulsating blade 11 is provided with a ridge portion 11a formed by a plurality of inclined faces formed by a gentle inclination in the rotational direction, which is an upward movement by the laundry placed on the upper surface by rotation, and A plurality of dewatering through holes 11b. The raised portion 11a has an inclined surface which is inclined in the circumferential direction and which is inclined in the radial direction in order to increase the outer peripheral end portion, and the upper portion of the outer peripheral end surface 11c is inclined toward the center side. In this embodiment, there are two ridges 11a, but it is not limited to two, but may be three or more.

The laundry on the pulsating blade 11 is rotated in the rotational direction of the pulsating blade 11 while sliding on the pulsating blade 11 while the pulsating blade 11 is rotated, and is pushed up in the swelled portion 11a in the up and down direction. vibration. At this time, water is sprayed from above the laundry while circulating the washing water, so that the washing water can be spread over the laundry. In this way, even if the washing water capable of immersing the laundry in the washing water is not accumulated in the washing and dewatering tank 9, the laundry can be washed and water can be saved. Further, as long as the washing water can be uniformly dispersed in the laundry, the washing time can be shortened in order to increase the washing power. Further, a detailed configuration of the uniform dispersion of the washing water will be described later.

Fig. 4 is a plan view showing a tank cover of the washing machine according to the embodiment of the present invention.

As shown in FIG. 4, the groove cover 10a has a laundry input port 10a1 (see a broken line portion) which is slightly semicircular in plan view in a portion of about 2/3 of the front side. Moreover, the inner cover 23 which opens and closes the laundry input opening 10a1 is provided in the tank cover 10a.

The inner lid 23 is attached to the groove cover 10a so as to be openable and closable via the hinge 23b, and the hand grip 23a is lifted upward to release the lock (not shown) of the inner lid 23, and the hand grip 23a is pressed downward to lock it.

Further, in the tank cover 10a, a warm air blowing port 22a for introducing warm air into the outer tank 10, a water supply inlet 32, and a circulating water inlet 33 are provided behind the laundry inlet 10a1. Further, a lotion ‧ complete agent inlet 28a is provided on the front side of the tank cover 10a.

Figure 5 shows the installation of the circulating water cover under the slot cover of Figure 4 Partial view of the department. In addition, FIG. 5 is a plan view when the groove cover 10a to which the circulating water cover 30 and the water supply cover 36 are attached is viewed in reverse.

As shown in Fig. 5, the circulating water cover 30 is provided with a lower surface on the rear side of the tank cover 10a (on the side of the washing and dewatering tank 9). In addition, the circulating water cover 30 is for guiding the washing water that has flowed in from the circulating water inlet 33 to the side of the laundry inlet 10a1 (see FIG. 4) of the tank cover 10a, and is spread to the washing and dewatering tank 9 (refer to the drawing). 2) Built in.

The water supply cap 36 is provided so as to guide the tap water flowing from the water supply inlet 32 to the laundry inlet 10a1 (see FIG. 4) side and spread it into the washing and dewatering tank 9. Further, the water supply cap 36 is provided with a plurality of water sprinkling ports 35 facing the opening side of the washing and dewatering tank 9.

A circulation water path 37 is formed inside the circulating water cover 30. One end of the circulating water passage 37 communicates with the other end of the circulating water inlet 33 and the sprinkling water passage 34. The water sprinkling channel 34 is located at the center of the laundry inlet 10a1 (see FIG. 4) of the tank cover 10a at a slight center in the left-right direction of the tank cover 10a, and is positioned at a rotation of the washing/dewatering tank 9 (see FIG. 2). The center O (refer to FIG. 4) is located further on the rear side. In the middle of the circulating water passage 37, the swarf filter 38 is detachably attached, and the inner lid 23 is opened and the holding portion 38a is pulled out toward the laundry inlet 10a1 (front side) to be detachable.

Further, in the present embodiment, the water supply solenoid valve 4 (see Fig. 2) is constituted by a four-way valve that can supply water in four directions. The first valve is a washing water supply solenoid valve and is connected to the water supply inlet 32, and constitutes a water supply from the water spout 35 of the water supply cover 36 to the washing and dewatering tank 9 by the microcomputer 40 being opened. The second valve is a lotion supply solenoid valve and is constructed by a microcomputer. 40 is opened and the lotion is supplied to the lotion ‧ complete agent container 28 (see Fig. 2). The third valve is a completion water supply solenoid valve, and constitutes a supply of water to the completion agent of the lotion ‧ complete agent container 28 by the microcomputer 40 being opened. The lotion ‧ complete agent container 28 communicates with the lotion ‧ complete agent inlet 28 a to form a lotion and a finishing agent in the outer tank 10 . The fourth valve is connected to a dehumidifying mechanism 22b which will be described later.

Fig. 6 is an external perspective view of the circulating water cover when viewed from below. In addition, FIG. 6 shows a state in which the wire filter 38 is removed.

As shown in FIG. 6, the sprinkling water path 34 is formed in a cylindrical shape in the vertical direction (up-and-down direction), and a slightly circular discharge port 34a for discharging the washing water is formed downward in the vertical direction at the lower end of the circulating water cover 30.

Further, the discharge port 34a of the sprinkling water passage 34 is configured to protrude downward in the vertical direction from the lower surface 30a of the circulating water cover 30. Thereby, it is possible to prevent the laundry from expanding in volume during the drying operation, and the laundry is caught in the washing tub (washing and dewatering tank 9, outer tank 10).

Further, the circulating water cover 30 is formed with a plurality of screw fixing portions 30b for screwing the circulating water cover 30 to the slot cover 10a (see FIG. 5), and an opening for pulling up the inserted wire filter 38 is formed on the front surface. Part 30d.

Fig. 7 is a plan view showing the inside of the circulating water cover.

As shown in Fig. 7, the circulating water cover 30 is attached with a rubber gasket (not shown) along the boundary 30c of the circulating water passage 37, and the circulating water cover 30 is fixed by the gasket and the groove cover 10a (see Fig. 5). . Thereby, the watertightness of the circulating water path 37 is ensured, and the water is prevented from leaking from the circulating water path 37 to the circulating water cover. 30 outside. Therefore, the washing water (circulating water) introduced from the circulating water inlet 33 is introduced into the sprinkling water passage 34 through the circulating water passage 37.

The sprinkling water passage 34 has a circular cylindrical portion 34b as viewed from the axial direction. A water inlet 34c for introducing washing water into the circulating water passage 37 is formed on the circumferential surface of the cylindrical portion 34b. The water inlet 34c is configured to introduce wash water from the substantially tangential direction S of the cylindrical portion 34b. By introducing the washing water from the substantially tangential direction S of the circumferential surface of the cylindrical portion 34b, the swirling flow (refer to the arrow mark) can be generated in the cylindrical portion 34b with respect to the washing water, and the diameter can be made from the discharge port 34a. The washing water is spit out widely to the outer side.

Fig. 8 is a sectional view taken along line A-A of Fig. 7;

As shown in Fig. 8, the cylindrical portion 34b has a whirling chamber 34b1 that generates a swirling flow, a rib 34d that protrudes horizontally toward the center of the shaft and extends toward the circumferential direction, and an expanded diameter that expands toward the discharge port 34a below the rib 34d. Part 34e (flow path section enlargement part). The enlarged diameter portion 34e becomes larger as the cross-sectional area of the flow path becomes larger toward the discharge port 34a.

The rib 34d has a force F2 in the force F2 that is perpendicular to the radial direction of the radial force F1 of the swirling flow of the wash water introduced from the water inlet 34c, and is lowered from the discharge port 34a to the vertical direction (axial direction). The function of reducing the amount of water in the washing water.

Further, the rib 34d is not provided in the entire circumference, but has a ribless portion 34d1 in which a rib 34d is not provided in a part of the circumferential direction. Thereby, it is possible to prevent water from accumulating on the rib 34d, and for example, it is possible to prevent the water (water droplets) from falling from the discharge port 34a to the laundry after the washing is completed.

The enlarged diameter portion 34e is formed to have a cross-sectional area of the flow path under the rib 34d. The square gradually becomes larger toward the discharge port 34a. In other words, the inner wall surfaces of the enlarged diameter portion 34e of the present embodiment constitute the curvatures R3 and R4. Further, the curvature of the inner wall surface of the enlarged diameter portion 34e may be constant, or the curvature of the discharge port 34a (opening edge portion) may be gradually increased.

Moreover, the enlarged diameter portion 34e is formed in a convex shape (bulging shape, mountain shape) toward the axial center side of the cylindrical portion 34b by a straight line L formed by the point P1 on the side of the connecting rib 34d and the side of the discharge port 34a. Moreover, the diameter-enlarged portion 34e is formed so that the direction in the tangential direction of the point P2 is outward in the radial direction.

Further, the curvature R3 and the curvature R4 of the discharge port 34a shown in the cross section of Fig. 8 are set to the same extent.

In the present embodiment, the case where the enlarged diameter portion 34e has a surface having the curvatures R3 and R4 will be described. However, a structure having a curved surface (for example, a conical trapezoidal shape) may not be formed in the enlarged diameter portion.

As shown in Fig. 9, the enlarged diameter portion 34e positioned on the front side is formed by a curvature R1 larger than the curvatures R3 and R4. Further, the enlarged diameter portion 34e located on the rear side is formed by a curvature R2 smaller than the curvatures R3 and R4. Thus, when the distance from the sprinkling water path 34 to the inner peripheral wall of the washing and dewatering tank 9 is long, the curvature R1 is formed to be large, and the curvature R2 is formed to be small when it is short. Further, the curvature may be changed stepwise at a predetermined angle (range) or continuously.

In the washing machine 100 having the sprinkling channel 34 configured as described above, the washing water introduced into the sprinkling water path 34 (the cylindrical portion 34b) from the circulating water passage 37 spirally rotates while flowing downward in the vertical direction in the cylindrical portion 34b. At this time, by providing the rib 34d on the downstream side of the cylindrical portion 34b, the expansion can be expanded. The sprinkling range (sprinkling range) at which the discharge port 34a is discharged. This is because the flow of water in the portion of the rib 34d rectifies the downward flow of water into a radial flow of water.

Further, the enlarged diameter portion 34e of the curvatures R1, R2, R3, and R4 is provided on the downstream side of the rib 34d, so that the water flow can be accelerated (concentrated) in the radial direction, and the shower range (sprinkling range) can be further enlarged. Further, since the water can be drawn by the surface tension of the material constituting the water sprinkling pipe 34, the shower range (sprinkling range) can be enlarged.

Here, the relationship between the size parameter of the sprinkling water path 34 (the cylindrical portion 34b) and the flow rate and the expansion of the shower will be described. As shown in Fig. 8, the thickness of the rib 34d is "a", the inner diameter of the rib 34d is "b", the inner diameter of the whirling chamber 34b1 is "c", and the lower surface of the rib 34d is curved. The length of the starting point is set to "d".

At this time, the smaller the thickness a, the wider the spray range (sprinkling range), and the larger the sprinkling range (sprinkling range) becomes narrower. The inner diameter b is an important point to determine the shower range and the shower flow. When the inner diameter b is large, the shower range is narrow and the shower flow is increased. On the contrary, when the inner diameter b is small, the shower range is wide and dripping. The sprinkling flow is reduced, so the size is ideal depending on the application. The length d is an important point for determining the range of the shower, and it is desirable to set it below (c-b)/2. The curvature R is the most important point in determining the extent of the shower, and the possible range of construction ensures that the large curvature R is ideal.

Fig. 10 is a schematic view showing a water injection mode in accordance with the amount of laundry.

The water from the circulating water passage 37 forms a swirling flow (see FIG. 8) flowing into the water sprinkling channel 34 from the water inlet port 34c along the side wall (inner peripheral wall surface) of the swirling chamber 34b1, and is discharged from the discharge port 34a into the washing and dewatering tank 9. .

As shown in Fig. 10, the water in the whirling chamber 34b1 (see Fig. 8) is rotated by the centrifugal force generated by the action, so that the water from the discharge port 34a (see Fig. 8) expands downward and becomes substantially conical. It is film-like and spread to the laundry.

Further, the sprinkling water 34 is located at a position deviated from the center of the washing and dewatering tank 9 to the deep side (the rear side in FIG. 10). Therefore, the water sprinkling from the discharge port 34a (see FIG. 8) is almost spread over the entire laundry when the amount of the laundry is small, but the upper surface of the laundry is to be pulled up as the amount of the laundry increases. Since the outlet 34a (sprinkling water path 34) is in a state in which the washing water is scattered on the front side (front side) of the washing and dewatering tank 9 (see FIG. 10). However, the diameter-enlarged portion 34e having the curvature R1 is provided in the discharge port 34a, so that the shower range (sprinkling range) can be enlarged, and even if the amount of the laundry increases, the washing water can be uniformly spread to the entire laundry. In addition, in general, in the present embodiment, the flow path cross-sectional area of the discharge port 34a is narrowed, and in the present embodiment, the diameter of the flow path is enlarged toward the discharge port 34a. 34e, the showering range (sprinkling range) can be enlarged without reducing the area of the discharge port 34a, and the washing water can be sufficiently sprinkled to the front side of the washing and dewatering tank 9. Further, since it is not necessary to reduce the cross-sectional area of the flow path of the discharge port 34a (because the flow path is not required to be narrowed), there is an advantage that there is no possibility of clogging of the wire.

Further, according to the washing test of the washing machine (washing and drying machine) having the rated capacity of 10 kg of the water sprinkling pipe 34 of the present embodiment (according to the Japanese Industrial Standard: the performance measuring method of the household electric washing machine, JIS C 9811-1999, the so-called washing performance) As a result, at 10kg, the washing rate is about 2% increase, laundry unevenness reduced by about 2%. When the laundry is more difficult to move (10 kg), the laundry unevenness is remarkably reduced, and the effect of uniform dispersion of the laundry is confirmed to be clear.

Fig. 11 is a schematic view showing a sprinkling range.

However, since the sprinkling water path 34 (discharge port 34a) cannot be disposed in the rotation center O of the washing and dewatering tank 9 in the relationship of the laundry inlet 10a1, it is provided further than the rotation center O. Further, when the shower range (sprinkling range) is set to be 360 degrees uniform, since the amount of water discharged from the sprinkling water path 34 is fixed, the distance from the sprinkling water path 34 to the long-distance water becomes smaller. Here, in the present embodiment, as described above, the position of the sprinkling water path 34 is shifted toward the rear of the rotation center O, and when the distance between the sprinkling water path 34 and the inner peripheral wall is not uniform, the sprinkling water path 34 and the inside of the washing and dewatering tank 9 can be used. The distance of the peripheral wall (the casing plate) changes the curvature of the enlarged diameter portion 34e, and the shower range (sprinkling range) can be changed.

As shown in FIG. 11, since the distance with respect to the front of the sprinkling waterway 34 is the longest, the curvature R1 (refer FIG. 9) of the diameter expansion part 34e is the largest, and the sprinkling range Q1 can be expanded. Further, since the distance from the rear of the sprinkling water path 34 is the shortest, the curvature R2 (see FIG. 9) of the enlarged diameter portion 34e is minimized, and the sprinkling range Q2 can be reduced. Further, since the distance from the left and right with respect to the sprinkling water path 34 is intermediate, the curvatures R3 and R4 (see FIG. 8) of the enlarged diameter portion 34e are set to the curvature between the curvature R1 and the curvature R2, and the sprinkling range Q3, Q4 can be set. It is set in the middle of the sprinkling range Q1 and the sprinkling range Q2.

In this way, when determining the amount of water coming out of the sprinkler 34, the water will be When the source is set to 360 degrees, the flying distance of the water becomes smaller, but as described above, the water source is changed according to the distance from the sprinkling water 34, and the washing water can be washed and taken off without changing the water volume 360 degrees. The peripheral wall (case plate) of the water tank 9.

Fig. 12 is a block diagram showing the control of the washing machine in the embodiment of the present invention.

As shown in FIG. 12, the microcomputer (control device) 40 is connected to the operation button input circuit 41, the water level sensor 21, the temperature sensor 26, and the vibration sensor 27 connected to the operation button switches 6, 6a. Accept the user's button operation, in the washing project; various information signals for the drying project. The microcomputer 40 is connected to the water supply solenoid valve 4, the clutch 12, the drain valve 15, the circulation pump 16, the electric motor 13, the blower fan 19, the heater 20, and the like via the drive circuit 42, and controls such opening, closing, rotation, and energization. Further, the microcomputer 40 (hereinafter simply referred to as a microcomputer) is a display 25 that is connected to a seven-segment LED that is used to notify the user of the operation state of the washing machine, a display 7 that is formed of a light-emitting diode, and a buzzer. 43.

Fig. 13 is a flowchart showing a part of the control process of the washing machine in the embodiment of the present invention, and Fig. 14 is a flow chart showing another part of the control process of the washing machine in the embodiment of the present invention. The microcomputer 40 is a basic control processing program for starting up when the power switch 5 is turned on, and performing the washing and drying shown in Figs. 13 and 14 .

As shown in FIG. 13, in step S101, the microcomputer 40 performs state confirmation and initial setting of the washing machine 100.

In step S102, the microcomputer 40 lights up to display the operation panel. The display 7, 7 (see Fig. 12) of 8 (refer to Fig. 1), and the washing stroke is set in accordance with an input instruction from the operation button switch 6. The standard washing stroke or the previously executed washing stroke is automatically set in a state where no instruction is input.

In step S103, the microcomputer 40 monitors the input of the start switch signal from the start switch (operation button switch) 6a of the operation button switch 6 of the operation panel 8. When the microcomputer 40 determines that there is no input of the switching signal, the process of step S103 is repeated, and when it is determined that the switching signal is input, the process proceeds to step S104.

At step S104, the microcomputer 40 executes a washing dose detecting process. The washing dose detecting process is based on the dry state of the laundry before the washing water is supplied, and the pulsating blade 11 is rotated in one direction while the washing and dewatering tank 9 is stationary, and the pulsating blade 11 is acted upon according to the action. The amount of the rotating load is detected by detecting the amount of the laundry. The microcomputer 40 controls the motor 13 and the clutch 12 in the washing and dehydrating driving device, and determines an appropriate amount (washing amount) of the lotion based on the detected amount of cloth. The washing dose is obtained by referring to a comparison table of the amount of cloth and the washing amount set in advance.

Specifically, the detection of the amount of cloth is performed by using the inverter drive motor as the structure of the motor 13, and the motor 13 is rotated in accordance with the arrival rotational speed at the time of power supply for a predetermined time. The configuration in which the capacitor-phase split single-phase induction motor is used as the motor 13 is performed by detecting the inertial rotation deceleration characteristic after the power is turned off in a state where the motor 13 is raised to the saturation rotation speed by the power supply. Further, the ideal washing amount is obtained by referring to a comparison table of the cloth amount and the washing amount set in advance.

Moreover, the amount of washing water is a measure of the amount of cloth in a predetermined amount of cloth. In the case of the circumference (appropriate amount), the amount of washing water (water level h1) is set so as not to exceed the water level of the pulsating wing disk 11 at the bottom of the outer tank 10.

Further, the microcomputer 40 sets the washing time based on the detection result (the amount of cloth). When the cloth amount is not detected, set the standard washing time.

In step S105, the control device 40 displays the determined washing dose on the display 25 of the operation panel 8.

In step S106, the microcomputer 40 opens the lotion water supply solenoid valve (not shown), and performs lotion supply to the lotion input chamber of the lotion ‧ complete agent container 28 (see Fig. 2). Further, the user puts the indicated amount of the powder lotion into the lotion ‧ completion agent container 28 into the lotion before the lotion is supplied, and then closes the outer cover 3 (see Fig. 2). The powder lotion which is put into the lotion supply chamber in which the lotion is supplied with water is dropped to the bottom of the outer tank 10 through the lotion ‧ completion agent inlet 28 together with the water of the lotion feed water.

In step S107, the microcomputer 40 stops the lotion feed water after the water is supplied to the lotion level of the lotion. In this embodiment, the amount of the lotion supplied is set to, for example, about 10 liters regardless of the amount of washing (amount of cloth). The amount of water is set to the amount of water that is sufficient to stir the water and the lotion after the water is supplied to the bottom of the washing and dewatering tank 9 when the washing agent is dissolved (step S108) to rotate the washing and dewatering tank 9, and the water surface ratio is set. The lower level of the pulsating wing disc 11 is lower (the laundry does not get wet before the lotion dissolves).

In step S108, the microcomputer 40 executes the slow rotation of the washing and dewatering tank 9 and the pulsating wing 11 in one direction (for example, about 70 rotations per minute), and the stirring is applied to the bottom surface of the washing and dewatering tank 9. The lotion at the bottom of the outer tank 10 dissolves the water and the powder lotion, and the lotion which produces the washing water having a high lotion concentration dissolves. The time during which the lotion is dissolved is, for example, set at 1 minute. The conditions of the powder lotion which is not easily dissolved at a low temperature (low water temperature) become a dissolution rate of about 90%. The detergent concentration of the resulting wash water is about 7 times the standard concentration. Here, the standard concentration is a ratio of a powder washing dose of 20 g / a washing water amount of 30 liters.

At step S109, the microcomputer 40 executes the front laundry. In the front washing, the pulsating blade 11 is intermittently rotated in the forward and reverse rotation in a state where the washing and dewatering tank 9 is stationary, and the circulation pump 16 is operated by the forward and reverse rotation of the pulsating blade 11. The washing water (washing water) at the bottom of the outer tub 10 is sucked up by the circulation pump 17, and water is sprinkled from the sprinkling water path 34 onto the laundry (dispersion). The microcomputer 40 opens the lotion water supply solenoid valve (not shown) and the washing water supply solenoid valve while referring to the detection signal of the water level sensor 21 during the stop period of the pulsation wing 11 and the circulation pump 16 (not shown). The make-up water that does not cross the set water level (h1). By repeating the operation a plurality of times, the laundry is stained with washing water (washing water) and dispersed on the pulsating blade 11.

At the time of the first forward and reverse rotation, the washing water having a concentration of about 7 times the lotion is poured into the laundry to be soaked into the laundry. Since the high-concentration washing water is spread from the discharge port 34a (see FIG. 8) of the sprinkling water path 34 to the entire laundry, the penetration of the lotion can be prevented from penetrating into the laundry without unevenness. The high concentration of the washing water soaked in the laundry has a high dissolving power of the oil, dissolves the grease and dirt, and allows the dirt to float from the laundry to have a large effect, and a high detergency can be obtained.

Further, by repeating the supply of water, the concentration of the lotion of the washing water dispersed in the laundry is lowered, and the concentration of the lotion is about twice the standard concentration at the end of the pre-washing.

At step S110, the microcomputer 40 performs formal laundry. In the official laundry, first, the cloth amount is detected in the same manner as described above, and the set washing time is corrected. Then, in a state where the washing and dewatering tank 9 is stationary, the circulating pump 16 is operated to circulate the pulsating blade 11 in the forward and reverse directions for about 2 minutes, and the washing water accumulated in the bottom of the outer tank 10 is discharged from the sprinkling water 34 to the washing. The stirring of the laundry water circulation of the material; and the stirring of the unwinding cloth for rotating the pulsating blade 11 in the forward and reverse directions in about 1 minute in a state in which the circulation of the washing water is stopped.

Since the washing water dispersed from the sprinkling water passage 34 is expanded into a thin film shape, it has an effect of suppressing water bounce when the laundry is hit. Further, since the effect of eliminating the foam of the lotion generated in the washing and dewatering tank 9 is also achieved in the main laundry, it is possible to suppress the foaming more than necessary. Therefore, it is possible to prevent a decrease in the detergency due to the action of the cushioning material of the lotion foam. Further, the drainage after the official laundry can be smoothly performed, and the effect of preventing the foaming phenomenon at the time of dehydration can also be achieved.

Further, in step S110, the microcomputer 40 stops the circulation of the circulating water pump 16 and stops the circulation of the washing water, and performs the uniform washing for about 1 minute to rotate the pulsating blade 11 forward and backward, and then ends the official washing.

As shown in FIG. 14, in step S111, the microcomputer 40 executes the first water storage rinsing. In the water rinsing rinse, first open the drain valve 15 After draining the washing water accumulated in the bottom of the outer tub 10, the washing and dewatering tank 9 and the pulsating flap 11 are integrally rotated in one direction to centrifugally dewater the washing water contained in the laundry. The rotational speed of the washing and dewatering tank 9 and the pulsating blade 11 at the time of centrifugal dewatering is set to be the same as the rotational speed (about 1000 rpm) of the final dehydration which will be described later. Thereby, a dehydration operation for realizing a high dehydration rate is performed.

Further, the microcomputer 40 closes the drain valve 15 and opens the washing water supply solenoid valve (not shown) while rotating the washing and dewatering tank 9 and the pulsating blade 11 in a single direction (35 to 40 rpm), and performs the water discharge port 35. The tap water (clear water) is spread to the feed water of the laundry on the pulsating wing disk 11.

Further, in the state where the microcomputer 40 stops the rotation of the washing and dewatering tank 9 and the pulsating blade 11, the water level at the bottom of the outer tank 10 does not wash the water supply water beyond the set water level h1.

In the same manner as in the case of the main washing (step S110), the microcomputer 40 is operated while the washing and dewatering tank 9 is stationary, and the circulating pump 16 is operated while the pulsating blade 11 is rotated forward and backward to accumulate in the outer tub 10. The washing water at the bottom of the bottom is discharged from the sprinkling water path 34 to the washing material on the pulsating blade 11, and the washing water is circulated and sterilized.

Then, in the state where the rotation of the pulsating blade 11 and the operation of the circulation pump 16 are stopped, the microcomputer 40 detects the water level of the washing water accumulated at the bottom of the outer tub 10, and supplies the water level to the set water level h1. water.

Moreover, the microcomputer 40 is in the washing and dewatering tank 9 In the stopped state, the circulating pump 16 is operated while the pulsating blade 11 is rotated in the forward and reverse directions, and the washing water accumulated in the bottom portion of the outer tub 10 is circulated and washed from the water sprinkling pipe 34 to the laundry on the pulsating blade 11. The water is circulated and stirred for washing. At this time, the washing water discharged from the discharge port 34a of the sprinkling water passage 34 is not unevenly distributed to the laundry, and the lotion component contained in the laundry can be efficiently diluted, and the washing performance can be improved.

Thereafter, the microcomputer 40 stops the circulation pump 16 and performs uniform agitation for continuing the forward and reverse rotation of the pulsating blade 11 in a state where the circulation of the washing water is stopped.

In step S112, the microcomputer 40 executes the second water storage rinsing. In the second water rinsing and rinsing, the softening agent water supply solenoid valve (not shown) is opened, and the softening agent is supplied to the room by the water supply to the softening agent of the lotion ‧ complete agent container 28 The control of the soft finish into the bottom of the outer tank 10 is controlled. In addition, the other operations are the same as the first water storage rinse.

At step S113, the microcomputer 40 performs final dehydration. In the state where the drain valve 15 is opened, the washing and dewatering driving device is operated, and the washing and dewatering tank 9 and the pulsating blade 11 are integrally rotated at a high speed in about 1000 rpm in one direction, and are in the washing and dewatering tank 9 at a high speed. The laundry is subjected to centrifugal dehydration. The operation time of this final dehydration is set to a time at which the desired dehydration rate can be obtained.

In step S114, the microcomputer 40 determines whether or not there is a set washing and drying stroke. When the microcomputer 40 determines that the washing and drying stroke is not set (S114, N), the processing is terminated by skipping the step S115, and it is determined that the washing and drying is set. At the time of the dry stroke (S114, Y), the process proceeds to step S115.

In step S115, the microcomputer 40 performs drying when the washing and drying stroke is set. In the state in which the drain valve 15 is opened and the drain valve 15 is opened, the pulsating blade 11 is rotated in the forward and reverse directions while the washing and dehydrating tank 9 is stationary. Fan 19 (see Fig. 2). Thereby, the air in the outer tank 10 is sucked out from the water passing vent 10b into the drying duct 22, and when passing through the drying duct 22, the cooling water flowing from the dehumidifying mechanism 22b provided in the drying duct 22 is contacted. It is cooled and dehumidified. The air cooled and dehumidified is collected by a cotton wool filter, heated by the heater 20, and then sucked into the washing and dewatering tank 9 from the warm air blowing port 22a (see Fig. 4).

Further, the microcomputer 40 performs drying while monitoring the temperature of the warm air according to the temperature sensor 26 (see FIG. 2), and ends the drying when the ratio of the temperature change becomes a predetermined value.

As described above, the washing machine 1 of the present embodiment is provided with the enlarged diameter portion 34e (flow path section enlarged portion) in which the flow path sectional area is enlarged toward the discharge port 34a in the water sprinkling path 34 of the washing water circulation mechanism 50, and the water sprinkling channel can be enlarged. The sprinkling range of 34 wash water. Therefore, the uneven distribution of the washing water to the laundry can reduce the unevenness of the washing and can improve the washing power.

In the present embodiment, the water sprinkling channel 34 includes a cylindrical portion 34b whose central axis is substantially perpendicular, and a water inlet 34c that allows the washing water to enter the water from the substantially tangential direction with respect to the circumferential surface of the cylindrical portion 34b (see FIG. 7). The swirling flow is caused by the washing water entering the cylindrical portion 34b from the water inlet 34c, Further, the centrifugal force by the swirling flow allows the washing water to be sprinkled from the discharge port 34a. Therefore, the laundry can be spread to the laundry without unevenness, and the washing unevenness can be reduced, and the washing power can be improved.

Further, by the centrifugal force by the swirling flow, the washing water is allowed to permeate into the laundry from the discharge port 34a of the water sprinkling pipe 34 without unevenness, and the soaking action of the high-concentration lotion liquid, the solubilization of the oil stain, and the like can be performed. The chemical detergency allows dirt to float from the laundry. After that, the washing water of the high-concentration lotion is circulated to the laundry, and the pulsating blade 11 is rotated forward and backward to cause the vibration in the vertical direction to be generated in the laundry, and the laundry which floats from the laundry can be obtained from the washing. The material is detached and the water saving efficiency is high.

In the present embodiment, the discharge port 34a is provided at a position (rearward) away from the rotation center O of the washing and dewatering tank 9, and the distance from the discharge port 34a to the inner peripheral surface of the washing and dewatering tank 9 is increased. The curvature of the enlarged diameter portion 34e (flow path section enlarged portion) is increased, and the water spray range of the washing water can be adjusted in accordance with the distance from the rotation center O to the inner peripheral surface of the washing and dewatering tank 9. Thereby, the washing water can be brought to the inner peripheral surface of the washing and dewatering tank 9 without increasing the performance of the circulation pump 16, that is, without changing the flow rate of the washing water introduced into the sprinkling water path 34.

Further, in the present embodiment, the rib 34d that protrudes inward in the radial direction is formed in the cylindrical portion 34b in the circumferential direction, and the force against the swirling flow (on the side of the discharge port 34a) can be reduced, so that the discharge port can be further enlarged. The sprinkler range of 34a.

Furthermore, the present invention is not limited to the foregoing embodiments. Various changes can be made without departing from the spirit and scope of the invention. In addition, in the above-described embodiment, the water sprinkling pipe 34 in the case where the washing water in the outer tank 10 is dispersed from above the washing and dewatering tank 9 by the circulation pump 16 will be described, but the configuration may be performed from the water sprinkling pipe 34. In the case of the water supply of the tap water, the water sprinkling pipe 34 is provided in the water supply cap 36, and the tap water is dispersed in the washing and dewatering tank 9 (clothing, etc.). In this way, even when the tap water is distributed from the water sprinkling pipe 34, the laundry unevenness of the laundry (clothing) can be reduced, that is, the clothes in the dry state are reduced, and the clothes can be immersed in the washing water frequently, so that the washing power can be improved.

In the present embodiment, the structure in which the shower water passage 34 includes the cylindrical portion 34b will be described. However, the present invention is not limited to a circular shape, and may be a cylindrical portion such as a polygonal shape.

34‧‧‧ sprinkler

30‧‧‧Circular water cover

34c‧‧‧ water inlet

P1‧‧ points

c‧‧‧Inner diameter of the rotating chamber

F2‧‧‧ force

34e‧‧‧Expanded section (flow path section enlargement)

L‧‧‧ Straight line

P2‧‧ points

Q3‧‧‧ sprinkler range

34b‧‧‧Cylinder

34b1‧‧‧Turning room

F1‧‧‧ force

B‧‧‧ inner diameter of the rib

34d1‧‧‧Fringless

R3‧‧‧ curvature

34a‧‧‧Exporting

R4‧‧‧ curvature

Q4‧‧‧ sprinkler range

30a‧‧‧Exporting

d‧‧‧The length of the rib below the starting point of the curvature

A‧‧‧ rib thickness

34d‧‧‧Link ribs

37‧‧‧Circular waterway

Claims (5)

A washing machine comprising: an outer tank for accumulating washing water; an inner tank as a washing and dewatering tank rotatably provided in the outer tank; and a rotary wing rotatably provided at a bottom portion of the inner tank And a sprinkling water that sprinkles the washing water into the inner tank from above the inner tank, the sprinkling water having a discharge port that opens toward the inner tank; and a flow path in which the cross-sectional area of the flow path is expanded toward the discharge port Section enlargement. A washing machine comprising: an outer tank for accumulating washing water; an inner tank as a washing and dewatering tank rotatably provided in the outer tank; and a rotary wing rotatably provided at a bottom portion of the inner tank And a washing water circulation mechanism that circulates the washing water in the outer tank to disperse water from the upper tank into the inner tank, wherein the washing water circulation mechanism includes: the washing water at a bottom of the outer tank and the inner tank a circulating circuit that circulates between the upper portions; a circulation pump that circulates the washing water; and a sprinkling water channel that is disposed in the circulation path to sprinkle washing water into the inner tank, the sprinkling water channel having: opening toward the inner tank Spit And a flow path section enlarged portion in which the flow path sectional area is enlarged toward the discharge port. The washing machine according to the first aspect of the invention, wherein the water sprinkling channel includes a cylindrical portion having a central axis that is substantially perpendicular to the vertical direction, and the washing water is substantially constant with respect to a circumferential surface of the cylindrical portion. The water inlet of the water entering the tangential direction causes a swirling flow of the washing water that has entered the cylindrical portion from the water inlet, and the washing water is sprinkled from the discharge port by the centrifugal force generated by the swirling flow. The washing machine according to claim 3, wherein the discharge port is provided at a position away from a rotation center of the inner groove, and the distance from the discharge port to the inner circumferential surface of the inner groove increases as the distance increases. The expansion rate of the enlarged section of the flow path. The washing machine according to the third aspect of the invention, wherein the cylindrical portion is formed with a rib projecting inward in the radial direction along the circumferential direction.