KR20000033976A - Washing machine - Google Patents

Abstract

PURPOSE: A washing machine is provided to reduce the used amount of water and a detergent by performing a washing and a rinsing processes with supplying the washing water only the inside of a washing tub by improving the washing tub. CONSTITUTION: A washing tub(50) of a washing machine is installed to be able to be rotated inside a water tank(20). A balancer(60) is installed inside the highest part. A dehydrating slot(511) is punched in the lower end of the balancer(60), and a spiral-shaped guiding path of dehydrating(512) and a vertical rising path(513) are composed via an inner wall. A washing and a rinsing processes are performed by supplying water only inside the washing tub(50) inputted the washing. A dehydrating process is performed through the vertical rising path(513), the guiding path of dehydrating(512) and the dehydrating slot(511) formed in the upper end. Thereby the used amount of washing water is reduced.

Description

Washing tub of washing machine

The present invention relates to a washing machine, and more particularly, to a washing tank 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, a washing machine having such a function includes a water tank 2 for releasing a certain amount of washing water required for washing in a housing 1 forming an exterior, and a pulsator 4 in the water tank 2. The washing tank 3 provided is provided, and the lower part of the water tank 2 is equipped with the power drive part 6 which transmits the power required for washing | cleaning.

The water tank 2 is installed to be suspended by the suspension device 5 inside the housing 1 so as to alleviate the vibration generated when the washing machine is driven. The suspension device 5 is largely comprised of the support rod 5a and the 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.

Washing tank (3) in which a plurality of dehydration holes (3a) is perforated is rotatably installed in the water tank (2), the inner bottom of the plurality of wings are provided radially and the reverse rotation during washing and rinsing administration washing water flow The pulsator 4 is formed.

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 washing tank 3 via the rotation shaft 6c. It consists of the clutch 6b. During washing and rinsing, power is transmitted to the pulsator 4 only by the clutch 6b, and during dehydration, power is transmitted such that the pulsator 4 and the washing tank 3 rotate simultaneously. And the lower end of the water tank (2) is extended to the outside of the housing (1) is composed of a drain hose (7) for draining the wash water.

The conventional washing machine configured as described above performs washing, draining, and dehydrating operations according to a command of a preprogrammed control unit (not shown).

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

When an appropriate amount of washing water is fresh in 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 washing the water tank 3. Washing and rinsing operations are performed by forming a wash stream in the).

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 washing tank 3 and the pulsator 4 are rotated at high speed in one direction, and dehydration operation is performed.

However, in the conventional washing machine, although all washing, rinsing, and dehydration are performed only in the washing 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 washing tank 3 to wash and rinse. Since this is carried out, 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 this problem, an object of the present invention is a cylindrical washing tank rotatably installed inside the tank and the balancer is mounted on the innermost top, dehydration spaced apart at regular intervals along the upper end adjacent to the balancer lower end Perforated locally and forming a spiral dewatering induction groove along the inner wall surface, the water is supplied only to the inside of the washing tank in which the actual laundry is carried out, washing and rinsing administration is performed, and dewatering through the dewatering induction groove and the dewatering hole formed at the top. By performing the administration, it is to provide a washing tank of the washing machine that can reduce the amount of washing water and detergent.

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 washing 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. Washing 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 cylindrical washing tank rotatably installed in a conventional water tank, a pulsator provided at an inner bottom of the washing tank to form a water flow, and a rotating shaft for driving the pulsator. A drainage hole formed at the bottom of the washing tank to penetrate and guide the water in the washing tank, and a drain hose for releasing the washing water discharged during the drainage administration through the drainage hole and the lower part of the tank to communicate with the water discharged during the dehydration administration. In the washing machine with an auxiliary drain hose for guiding discharge to the

The washing tank is not filled with the washing water in the tank, and the washing and rinsing stroke is carried out locally at the upper part of the washing tank so that the washing and rinsing administration is performed in the washing tank with fresh water stored therein. It is characterized in that the dewatering induction groove is formed to be concave in a spiral shape along the inner wall surface of the washing tank to guide the water to the upper end side formed with dehydration holes.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view showing the overall internal structure of the washing machine according to the present invention, Figure 3 is a perspective view showing a washing tank according to the present invention.

Washing machine according to the present invention, as shown in this, the washing tank 50 is built in the suspension tank 20, the pulsator 90 to form the water flow is installed in the housing 10 forming the outer body and drive the same It consists of a power drive unit 40 and the like.

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 coupled to a lower part thereof, and a lid 13 and a detergent dissolving device for inputting and withdrawing laundry from the upper part. The upper cover 12 provided with 14 is coupled.

The water tank 20 is composed of a plastic top with an open top, and is suspended from the inner space of the housing 10 through four suspension devices 30 including the support rod 31 and the buffer spring 32. One end of the support rod 31 is fixed to the upper end of the housing 10, the other end thereof is fixed to the lower side of the water tank 20, and coupled to the case 33 in which the shock absorbing 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, the water tank 20 is installed in the housing 10.

Power drive unit 40 is largely composed of a motor 41 and the clutch 42, which is mounted on the lower outer surface of the water tank (20). Clutch 42 for transmitting power to the washing tank 50 and the pulsator 90 is fixed to the lower center of the water tank 20, the end of the rotary shaft 43, the center of the washing tank 50 and the pulsator 90 Combined with. Accordingly, only the pulsator 90 is rotated forward and backward during washing and rinsing by the clutch 42, and the pulsator 90 and the washing 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. .

The washing tank 50 in which the pulsator 90 is built is installed to maintain a constant distance from the inner wall of the water tank 20. This is a cylindrical body 51 having a cylindrical shape with an open upper and lower portions and a lower body made of a dish shape. 52 is configured to be coupled.

Cylindrical body 51 is composed of a stainless material, the top end of which is filled with salt water balancer 60 is mounted in the circumferential direction. The balancer 60 buffers vibrations during washing and rinsing operations of the washing machine through a wave of brine, and performs a function of maintaining the balance of the washing tank 50 when dehydrating.

The cylindrical body 51 is a characteristic element of the present invention, the dehydration hole 511 is locally drilled only in the upper end, the inner wall surface thereof extends in the longitudinal direction with the dehydration guide groove 512 protruded convexly in a spiral shape. The vertical riser 513 is provided, washing and rinsing is performed in the state in which the wash water is stored in the washing tank 50 in fresh water. 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 for discharging the water guided upward along the inner wall surface of the washing tank 50 to the outside during dehydration administration. will be. The dewatering induction groove 512 formed in a spiral band shape extends from the bottom to the top of the cylindrical body 51 and protrudes in a radial direction. In addition, the vertical rising path 513 having a predetermined width extends from the bottom of the inner wall surface of the washing tank 50 in the vertical length direction of the upper end side. 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 washing tank 50 to the upper side of the washing tank 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 located. To this end, 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. do. At this time, the drainage hole 521 is largely formed so that the rotation shaft 43 is allowed to pass through, which is for smoothing the drainage stroke to be described later. In addition, a shaft flange 522 is provided on the lower surface of the lower body 52. This is the center is connected to the rotation shaft 43 of the clutch 42, through which the power is transmitted from the clutch 42 during dehydration administration through which the washing tank 50 is rotated at high speed.

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 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 washing tank 50 through the central drain cover 70 made of plastic injection molding. That is, the central drain cover 70 is installed between the bottom of the washing tank 50 and the bottom surface of the water tank 20 so as to surround the rotary shaft 43 of the clutch 42, and one end of the main drain hose 80 is disposed therein. Is configured to communicate with, the upper end thereof is formed in the inlet portion 71 is in communication with the drainage hole 521 perforated in the lower portion of the washing tank (50). 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 washing tank 50 to allow the rotating shaft 43 to pass therethrough. , The shaft flange 522 is rotated while rubbing against the sealing member 72 during the dehydration operation, thereby preventing the wash water leakage 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 communicates with the inside through the bottom of the water tank 20, and the other end is communicated 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 washing tank 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, when the washing machine lid 13 is opened and the laundry is put into the washing tank 50 and the washing machine is operated through a control unit (not shown), washing with an appropriate amount of detergent together with the detergent contained in the detergent dissolving device 14 according to the amount of laundry. Water is supplied into the washing tank 50. At this time, since the drain valve 81 of the main drain hose 80 is kept closed, and the dehydration hole 511 is locally drilled only at the upper end of the washing tank 50, the washing water is shown in FIG. As described above, only the central drain cover 70 and the washing tank 50 are filled in from the upper side of the main drain valve 80.

Subsequently, when an appropriate amount of washing water is supplied into the washing tub 50, power is applied to the motor 41, and thus power is generated. Accordingly, the pulsator 90 is rotated forward and backward by the rotation shaft 43 of the clutch 42. Formation of Washing Water Laundry is washed and rinsed in the washing tank 50. Such washing and rinsing administration is performed in a state in which the washing water is filled only in the washing tank 50, so that the amount of washing water as well as detergent is greatly reduced. After the rinsing stroke is completed, the drain valve 81 is opened so that the wash water inside the washing tank 50 passes outside the housing 10 through the drain hole 521, the central drain cover 70, and the main drain hose 80. To be discharged.

In the dehydration operation, power is simultaneously transmitted to the washing 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 washing tank 50 is a vertical riser 513 formed on the wall surface of the washing tank 50, that is, part of the vertical length direction by the centrifugal force The other part is easily climbed to the upper side along the spiral dehydration guide 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 dewatered water flows back 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 washing tank 50 is connected in a spiral shape, water coming out of the laundry is guided to the upper side of the washing tank 50 according to the dehydration smoothly.

Therefore, the washing machine according to the present invention is filled with water only in the washing tank 50, the washing and rinsing stroke is performed, thereby reducing the water used for washing and rinsing stroke and reducing the power consumption due to the reduction of water supply time.

That is, the required amount of washing water is supplied only to the washing tank 50 in which the laundry is contained, and washing and rinsing operations are performed, thereby significantly reducing the amount of water used and saving the amount of detergent, thereby reducing environmental pollution caused by synthetic detergents. have. 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 above in detail, the washing tub of the washing machine according to the present invention is rotatably installed inside the tank and is equipped with a balancer inside the top end, and locally drills the dehydration hole so as to be spaced apart at a predetermined distance from the upper end of the washing tank adjacent to the balancer. A spiral dehydration guide groove and a vertical riser are formed along the inner wall surface. Therefore, the washing and rinsing administration is performed by supplying water only to the inside of the washing tank in which the actual laundry is contained, and the dehydration administration is easily performed through the vertical riser, the dehydration induction groove, and the dehydration hole formed at the top, so that the amount of washing water used is excellent. Savings. In addition, the amount of detergent is reduced, there is an advantage that can reduce the environmental pollution caused by domestic wastewater.

Claims (2)

Cylindrical washing tank 50 rotatably installed in a conventional water tank 20 and a dehydration hole 511 is formed, a pulsator 90 provided at an inner bottom of the washing tank 50 to form a washing water flow, Rotating shaft 43 for driving the pulsator 90 penetrates and drains through the drainage hole 521 and the drainage hole 521 formed in the bottom surface of the washing tank 50 to guide drainage of the water in the washing tank 50. Washing machine equipped with a main drain hose (80) for guiding the discharge of the wash water discharged to the outside and the sub-drain hose (82) for guiding the discharged water to the outside during the dehydration administration is provided in communication with the lower portion of the water tank (20) To The dewatering hole 511 is the upper end of the washing tank 50 so that the washing tank 50 is not filled with the washing water in the water tank 20 and the washing and rinsing strokes are performed in the washing tank 50 with fresh water stored therein. It is perforated locally, and the water coming out of the laundry during the dehydration administration is formed in a spiral concave along the inner wall surface of the washing tank 50 so that the water discharged to the outside through the dehydration hole (511) to the water dehydration hole ( Washing tub of the washing machine, characterized in that the dehydration guide groove 512 is guided to the upper end side formed 511. The method of claim 1, Washing tank of the washing machine, characterized in that the inner wall surface of the washing tank 50 is provided with a vertical riser 513 extending vertically from the bottom of the inner wall surface to the upper end side so that water coming out of the laundry during dehydration administration is directed to the upper end side.