KR100353029B1 - washer - Google Patents

Abstract

The present invention relates to a washing machine, and an object thereof is to supply washing water only to a rotating tub to perform washing and rinsing operations, thereby reducing the amount of water and detergent used.

According to the washing machine according to the present invention, the dehydration hole 511 is locally drilled so as to be spaced apart at a predetermined distance from the upper end of the rotating tank 50 adjacent to the balancer 60 and the spiral dewatering induction groove along the inner wall of the rotating tank 50. Since the 512 and the vertical riser 513 are configured, the washing water is stored only in the rotating tank 50 in which the actual laundry is contained during the washing and rinsing stroke, and the vertical rising passage 513 and the dehydrating stroke. Washing water is easily discharged through the dehydration induction groove 512 and the dehydration hole 511 formed on the upper side, which significantly reduces the amount of washing water and also reduces the amount of detergent, thereby preventing environmental pollution caused by domestic wastewater. There is this.

Description

washer

The present invention relates to a washing machine, and more particularly, to a washing machine having a rotary bath in which laundry is contained and washing, rinsing, and dehydration are performed.

In general, the washing machine is programmed to control the washing, rinsing, drainage, and dehydration in advance to the microcomputer in the control unit, and the user is configured to selectively control the washing operation so that the laundry is automatically washed.

As shown in FIG. 1, the washing machine having such a function is rotatably disposed in the water tank 2 and the water tank 2, which are suspended inside the housing 1 forming the exterior and store a predetermined amount of water for washing. It is equipped with a rotary tank (3) having a pulsator (4), a power driving unit (6) which is mounted to the lower portion of the water tank (2) to transfer the power required for washing and dewatering administration.

The water tank 2 is installed by hanging through the suspension device 5 inside the housing 1 to absorb the vibration generated during the operation of the washing machine. The suspension device 5 has a supporting rod 5a and a shock absorbing spring 5b. One end of the supporting rod 5a is fixedly coupled to the inner upper end of the housing 1, and the other end thereof is provided with a case 5c provided with a shock absorbing spring 5b and coupled to the outer lower end of the water tank 2. That is, while supporting the weight of the water tank (2) by the buffer spring (5b) installed on the other end of the support rod (5a) of the suspension device 5, the vertical vibration of the washing and rinsing and dehydration process is alleviated.

Rotating tank (3) rotatably installed in the water tank (2) is a plurality of dehydration holes (3a) is perforated on the inner wall, the inner bottom of the rotating tank (3) to the forward and reverse rotation during washing and rinsing stroke to form a washing water flow A pulsator 4 having a plurality of wings provided radially is configured.

And the power drive unit 6 is mounted on the lower outer side of the water tank 2, which receives the motor (6a) and its power to rotate the pulsator (4) and the rotating tank (3) via the rotating shaft (6c) Clutch 6b. During washing and rinsing stroke, power is transmitted to the pulsator 4 only by the clutch 6b, and during dehydration stroke, the power is transmitted such that the pulsator 4 and the rotating tank 3 rotate simultaneously. In addition, a drain hose 7 is disposed at the lower end of the water tank 2 so that the end portion extends to the outside of the housing 1 to drain the wash water.

In the conventional washing machine configured as described above, washing and rinsing, drainage, and dehydration stroke are performed according to a command of a control unit (not shown) programmed in advance.

That is, after the laundry is put into the rotating tub 3 and the user operates the washing machine through a control unit (not shown), the washing water and the detergent are supplied into the rotating tub 3. At this time, the wash water supplied into the rotating tank 3 is stored in the water tank 2 while exiting through the plurality of dehydration holes 3a.

When an appropriate amount of washing water is supplied to the water tank 2, power is applied to the motor 6a to generate power, and the power is transmitted through the clutch 6b so that the pulsator 4 rotates forward and backward, thereby rotating the rotating tank ( 3) Washing and rinsing operations are performed by forming a wash flow in the tank.

After the end of the stroke, the fresh water washed in the water tank 2 is discharged to the outside of the housing 1 through the drain hose (7). And the rotating tank 3 and the pulsator 4 rotate at high speed in one direction, and dehydration stroke is performed.

However, in the conventional washing machine, although all washing, rinsing, and dehydration operations are performed only in the rotating tank 3 in which the laundry is contained, the washing machine is supplied with the washing water to the space between the water tank 2 and the rotating tank 3. Since the rinse stroke is performed, the amount of water used becomes large.

Therefore, the water supply time is increased, the power consumption is increased, and the amount of detergent supplied with the washing water is also increased, there is a problem to increase the environmental pollution.

The present invention is to solve such a problem, an object of the present invention is to improve the use of the laundry to supply the washing water only to the inside of the rotating tank containing the actual laundry to perform the washing and rinsing stroke to use the amount of washing water and detergent It is to provide a washing machine that can be saved.

And another object of the present invention is to provide a washing machine that can more easily discharge the wash water in the rotary tub during drainage and dehydration stroke.

1 is a cross-sectional view showing the overall structure of a conventional washing machine.

2 is a cross-sectional view showing the overall structure of a fully automatic washing machine according to the present invention.

3 is a perspective view of a rotating tub according to the present invention.

Figure 4 shows the water supply during washing administration of the washing machine according to the present invention.

Figure 5 shows the dehydration process during the dehydration administration of the washing machine according to the present invention.

* Description of the symbols for the main parts of the drawings *

20 .. Tank 50 .. Swivel tank 51. Cylindrical body

511 .. Dewatering work 512. Dewatering induction groove 513. Vertical lift

52 .. Lower body 521 .. Drainage hole 80 .. Main drain hose

82..Sub Drain Hose

In order to achieve the above object, the present invention provides a washing machine having a conventional water tank, a rotating water tank rotatably installed in the water tank, and a pulsator rotatably disposed at the inner bottom of the water tank.

Swivel

A dewatering hole drilled locally on the upper end of the rotating tub so that washing and rinsing strokes are performed while the washing tank is not filled with the washing tank and the washing water is stored only in the rotating tub;

In the case of the dehydration stroke, it is characterized in that it comprises a dewatering guide groove formed in a spiral concave along the inner wall of the rotating tub so as to guide the water out of the laundry to the upper end side formed with dehydration holes.

According to this configuration, the washing water is supplied only to the inside of the rotary bath in which the laundry is contained, and the washing and rinsing stroke can be performed to reduce the amount of washing water and detergent, and to easily discharge the water from the laundry during the dehydration stroke. can do.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. 2 and 3 show the overall internal structure and the rotating tub of the washing machine according to the present invention, Figures 4 and 5 show the operating state of the washing machine.

2 and 3, the washing machine according to the present invention, the washing tank in which the suspension tank 20 is installed in the housing 10 constituting the outer body, the pulsator 90 forming the water flow is built-in washing machine ( 50 and a power driver 40 for driving the same.

The housing 10 which is injection-molded with a plastic material is usually made of an upper part and an lower part, and a base plate 11 is mounted at a lower part thereof, and a lid 13 and a detergent dissolving device 14 for putting laundry in and out of the upper part. ) Is provided with the upper cover 12 is coupled.

The water tank 20 is provided with an open plastic top, and is suspended from the inner space of the housing 10 through four suspension devices 30 having a support rod 31 and a shock absorbing spring 32. One end of the support rod 31 is fixed to the upper end of the housing 10, the other end thereof is mounted in the case 33, which is mounted below the water tank 20, and the buffer spring 32 is built. Therefore, while the vibration and shock generated during the operation of the washing machine by the elastic restoring force of the shock absorbing spring 32 is absorbed, the water tank 20 is firmly installed in the housing 10.

The power drive unit 40 includes a motor 41 and a clutch 42 mounted on the lower outer surface of the water tank 20. The clutch 42 is fixed to the lower center of the water tank 20 so as to transfer power to the rotating tank 50 and the pulsator 90, and the end of the rotating shaft 43 thereof is the rotating tank 50 and the pulsator 90. ) Is combined with the central part. Accordingly, only the pulsator 90 is rotated forward and reverse during washing and rinsing stroke by the clutch 42, and the pulsator 90 and the rotating tank 50 are simultaneously rotated in one direction during the dehydration stroke. The motor 41 generates power and transmits the power to the clutch 42. To this end, the pulley 411 of the motor 41 and the pulley 421 of the clutch 42 are connected to each other via a belt 44. .

Rotating tank 50 in which the pulsator 90 is built is composed of a cylindrical body 51 having an upper and lower portions and a lower body 52 having a plate shape, so as to maintain a constant distance from the inner wall of the water tank 20. Is installed.

Cylindrical body 51 is made of a stainless material, the innermost upper end of the balancer 60 filled with saline is mounted in the circumferential direction. The balancer 60 buffers vibrations during washing and rinsing strokes of the washing machine through a wave of brine, and maintains a balance of the rotating tank 50 during dehydration strokes.

In the cylindrical body 51, a dehydration hole 511 is locally drilled only at the upper end thereof, and an inner wall thereof is provided with a dehydration guide groove 512 formed to protrude convexly in a spiral shape and a vertical upward passage 513 extending in the longitudinal direction. In this way, the washing and rinsing administration can be performed in a state in which the washing water is stored only in the rotating tub 50.

That is, the dehydration hole 511 is formed to be spaced apart at a predetermined interval in the circumferential direction along the edge adjacent to the lower end of the balancer 60, which is discharged to the outside along the inner wall of the rotating tank 50 in the dehydration stroke to the outside It is to. In addition, the dehydration guide groove 512 formed in a spiral band direction is provided extending from the bottom to the upper end of the cylindrical body 51 and protrudes in a radial direction. In addition, the vertical riser 513 having a predetermined width extends from the bottom of the inner wall of the rotating tub 50 to the upper end, that is, in the vertical length direction. The dehydration guide groove 512 and the vertical riser 513 are intended to facilitate dehydration by guiding water coming out of the laundry during the high speed rotation of the rotating tub 50 to the upper end of the rotating tub 50.

And the lower body 52 of the plate-shaped injection molded with a plastic material is coupled to the lower end of the outer surface portion of the cylindrical body 51, the upper side of the pulsator 90 is provided with a plurality of wings 91 radially Is placed. A drainage hole 521 having a predetermined diameter is drilled in the center of the lower body 52 so that the rotation shaft 43 of the clutch 42 is coupled to the center of the pulsator 90 through the drainage hole 521. At this time, the drainage hole 521 is largely formed so that the rotation shaft 43 is allowed to pass through, which is to facilitate the drainage stroke to be described later. In addition, a shaft flange 522 is provided on the lower surface of the lower body 52. The central portion of the shaft flange 522 is connected to the rotary shaft 43 of the clutch 42, through which the rotary tank 50 is rotated at high speed by receiving power from the clutch 42 during dehydration and administration.

On the other hand, the lower portion of the water tank 20 is provided with a main drain hose 80 and a sub drain hose 82 for discharging the wash water to the outside of the housing 10. One end of the main drain hose 80 communicates with the water tank 20, and the other end thereof extends to the outside of the housing 10. One end portion of the main drain hose 80 is provided with a drain valve 81 for selectively opening and closing it. One end of the main drain hose 80 is in direct communication with the inside of the rotating tank 50 through the central drain cover 70 made of a plastic injection molding. That is, the central drain cover 70 is disposed between the bottom of the rotating tank 50 and the bottom surface of the water tank 20 so as to surround the rotary shaft 43 of the clutch 42, and is drilled in the lower portion of the rotating tank 50. An inlet 71 communicating with the drain hole 521 is formed at the upper end of the central drain cover 70, and one end of the main drain hose 80 is coupled to communicate with the inside of the central drain cover 70. In addition, a sealing member 72 is installed between the inlet portion 71 of the central drain cover 70 and the shaft flange 522 installed at the bottom of the rotating tub 50 to allow the rotating shaft 43 to penetrate therethrough. In the dehydration stroke, the shaft flange 522 is rotated while rubbing against the sealing member 72 to prevent leakage of the wash water between the shaft flange 522 and the inlet portion 71 of the central drain cover 70.

Further, at one end of the main drain hose 80, a sub drain hose 82 whose tip portion communicates with the water tank 20 is branched. One end of the sub-drain hose 82 is in communication with the inside through the bottom of the water tank 20, the other end is in communication with the main drain hose 80 below the drain valve 81. The sub-drain hose 82 is for discharging the washing water discharged to the outside of the rotating tub 50 during the dehydration stroke of the washing machine to the outside of the housing 10.

Next will be described the operation of the washing machine according to the present invention configured as described above.

First, after opening the washing machine lid 13 and putting the laundry into the rotating tank 50 and operating the washing machine through a control unit (not shown), according to the amount of laundry, an appropriate amount of detergent and the detergent contained in the detergent dissolving device 14 Washing water is supplied into the rotating tub (50). At this time, since the drain valve 81 of the main drain hose 80 remains closed, and the dehydration hole 511 is locally drilled only at the upper end of the rotating tank 50, the washing water is shown in FIG. As described above, only the main drain valve 80 upstream and the central drain cover 70 and the rotating tank 50 are filled.

Subsequently, when a suitable amount of washing water is supplied into the rotating tub 50, power is applied to the motor 41 to generate power, and the pulsator 90 is reversed by the rotating shaft 43 of the clutch 42. Washing water flow is formed. Washing and rinsing is performed while the laundry is rubbed with the inner wall of the pulsator 90 and the rotating tank 50 by the washing water flow. Since the washing and rinsing administration is performed in a state in which only the washing water is filled in the rotating tank 50, the washing water and the amount of detergent are significantly reduced.

After the rinsing stroke is completed, the drain valve 81 is opened to operate the washing water in the rotary tub 50 through the drain hole 521, the central drain cover 70, and the main drain hose 80. ) It is discharged to the outside.

In addition, during the dehydration stroke, power is simultaneously transmitted to the rotating tank 50 and the pulsator 90 by the clutch 42, so that they rotate at a high speed in one direction, thereby dehydrating the laundry. That is, as shown in Figure 5, the water absorbed in the laundry due to the high-speed rotation of the rotating tub 50 is a vertical rise path 513 formed in the vertical length direction of the wall surface of the rotating tub 50 by the centrifugal force 513 ) And the remaining part is easily elevated to the upper side along the spiral dehydration induction groove 512, and discharged into the water tank 20 through a plurality of dehydration holes 511 formed adjacent to the lower end of the balancer 60. The water dewatered through this path flows down to the bottom surface of the water tank 20 and is discharged to the outside of the housing 10 through the sub drain valve 82. At this time, since the dehydration induction groove 512 formed on the inner wall surface of the rotating tank 50 is connected in a spiral shape, the water coming out of the laundry is guided to the upper side of the rotating tank 50 according to this, so that the dehydration is made smoothly. .

As such, since the washing machine is operated in a state in which only the required amount of washing water is supplied to the inside of the rotary tub 50 during washing and rinsing, water used for washing and rinsing is reduced, and power consumption is reduced due to the reduction of water supply time. In addition, environmental pollution caused by synthetic detergents can be reduced. In fact, the inventors of the laundry experiment through the washing machine was found that the water used is reduced by about 25%.

As described in detail above, according to the washing machine according to the present invention, the dehydration hole is locally drilled so as to be spaced apart at a predetermined distance from the upper end of the rotating tank adjacent to the balancer, and the spiral dewatering induction groove and the vertical riser are formed along the inner wall of the rotating tank. Since the washing water is stored only in the rotating tank where the actual laundry is stored during the washing and rinsing stroke, and the washing water is easily discharged through the vertical riser and the dehydration guide groove and the dehydration hole formed at the top during the dehydrating stroke. The amount of washing water used is greatly reduced, and the amount of detergent is also reduced, which has the advantage of preventing environmental pollution caused by domestic wastewater.

Claims (3)

In a washing machine having a conventional water tank (20), a rotating tank (50) rotatably installed in the water tank (20), and a pulsator (90) rotatably disposed at an inner bottom of the rotating tank (50), The rotating tank 50, Dewatering hole 511 locally perforated in the upper end of the rotating tank 50 to perform the washing and rinsing stroke in the state in which the washing water is stored only in the rotating tank 50 without washing water in the water tank 20, In the case of dehydration administration, characterized in that it comprises a dehydration guide groove 512 formed concave in a spiral shape along the inner wall of the rotating tub 50 to guide the water coming out of the laundry to the upper end side formed with the dehydration hole (511) Washing machine. The method of claim 1, Washing machine, characterized in that the inner wall of the rotating tub 50 is provided with a vertical riser extending vertically from the bottom of the inner wall to the upper side so that water from the laundry is guided to the upper end when the dehydration stroke. The method of claim 1, The bottom of the rotating tank 50 is provided with a drain hole 521 perforated to pass through the rotating shaft 43 for driving the pulsator 90 and to guide the water of the rotating tank 50 at the same time. , A central drain cover 70 is disposed between the rotary tank 50 and the water tank 20 so as to surround the rotary shaft 43 and communicate with the drain hole 521. One end of the water tank 20 is connected in communication with the central drain cover 70 and provided with a drain valve 81 to guide discharge of the washing water discharged through the drain hole 521 to the outside during the drainage stroke. Washing machine, characterized in that the main drain hose (80) and the sub-drain hose (82) is provided in communication with the water tank 20 to discharge the water discharged during the dehydration administration to the outside.