JP2016214480A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine which can supply water to laundry early from the water supply start.SOLUTION: The washing machine is provided that comprises: a housing; a water tank supported in the housing; a washing tub supported rotatably in the water tank; a pulsator disposed rotatably at a bottom in the washing tub; a motor for rotationally driving the pulsator; a water supply valve for controlling water supply to the water tank; a detergent case which is supplied with water by opening of the water supply valve and accommodates detergent; and control means for controlling the water supply valve and the motor. The control means rotates the pulsator normally and reversely at the same time as the opening of the water supply valve, or after elapsing of predetermined time of such an extent that water is supplied to the detergent case from the water supply valve and bubbles generated in the detergent case are supplied to the water tank.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a washing machine for washing clothes.

  2. Description of the Related Art Conventionally, there has been proposed a washing machine that improves laundry efficiency by supplying a detergent liquid to the laundry from above and allowing the detergent liquid to penetrate the laundry (for example, see Patent Document 1).

  FIG. 5 is a cross-sectional view illustrating the configuration of a conventional washing machine. A conventional washing machine will be described with reference to FIG.

  As shown in FIG. 5, the outer tub 1 is elastically suspended from the washing machine outer frame 8 by a suspension rod 7, and the outer tub cover 6 is attached to the upper opening of the outer tub 1 via a packing 5. Is provided. An inner tank 2 is rotatably disposed in the outer tank 1, and a stirring blade is rotatably disposed on the inner bottom portion of the inner tank 2 via a speed reduction mechanism 3.

  The inner tub 2 is rotationally driven through the motor leaf and the speed reduction mechanism 3 as the driving means 9. The water supply valve 10 supplies water into the inner tank 2. The water level detection means 11 detects the water level in the outer tub 1. The drain valve drains the washing liquid in the outer tub 1. The control device 13 controls the motor 9, the water supply valve 10, the drain valve 12, etc., and sequentially controls each process of washing, rinsing and dehydration.

  A bubble chamber 14 is formed on the inner surface of the outer tub 1 at a position higher than the inner bottom surface 1 a of the outer tub 1. The bubble chamber 14 is hermetically sealed with a lid portion 15 formed on the outer tank cover 6 through the packing 5 at the upper opening. A part of the circulation path 16 is formed in a part of the lid part 15, a foam discharge part 17 is formed at the tip of the circulation path 16, and bubbles flowing through the circulation path 16 from the foam discharge part 17 are transferred to the inner tank 2 Supply to the laundry inside from above.

  The operation of the above configuration will be described. When the laundry and detergent are put into the inner tub 2 and the operation is started, the water supply valve 10 is operated by the control device 13 to supply water into the inner tub 2. When the water level detection means 11 detects a predetermined water level lower than the normal washing liquid level, the control device 13 stops the water supply valve 10. And the control apparatus 13 drives the motor 9, rotates the inner tank 2, and performs the detergent melt | dissolution process which melt | dissolves a detergent. The number of rotations of the inner tank 2 in this detergent dissolution process is set lower than the foaming process performed thereafter so that the selective liquid is not supplied into the inner tank 2 before the detergent is completely dissolved.

  When the time sufficient for the detergent to dissolve is elapsed, the process proceeds to the foaming process, and the inner tub 2 is rotated at a higher rotational speed than the detergent dissolving process. A large amount of air is sent to the washing liquid between the inner tub 2 and the outer tub 1 by the rotation of the inner tub 2, and the washing liquid and the air are mixed to generate a large amount of bubbles. Since the generated foam has a low specific gravity, it moves to the upper part of the washing liquid and moves to the foam chamber 14 while rotating in the outer tub 1.

  The foam that has moved to the foam chamber 14 is discharged from the foam discharge portion 17 into the inner tub 2 from above through the circulation path 16 and falls on the laundry in the inner tub 2.

JP 2004-313233 A

  However, the conventional washing machine supplies water up to a predetermined water level, dissolves the detergent in a state where a predetermined amount of water is accumulated in the outer tub 1, and after the detergent is dissolved, foams the detergent liquid and generates the generated foam. Since it supplies to the laundry in the inner tank 2, there exists a problem which requires time until a foam penetrate | invades into a laundry.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a washing machine capable of supplying water to laundry at an early stage.

  In order to solve the conventional problems, a washing machine of the present invention includes a housing, a water tank supported in the housing, a washing tub rotatably supported in the water tank, and the washing tub. A separator that is rotatably disposed on the inner bottom surface, a motor that rotationally drives the pulsator, a water supply valve that controls the supply of water into the water storage tank, and water that is supplied by opening the water supply valve to store detergent. A detergent case; and a control means for controlling the water supply valve and the motor. The control means is generated in the detergent case by supplying water to the detergent case simultaneously with opening of the water supply valve or from the water supply valve. The pulsator is rotated forward and backward after a lapse of a predetermined time such that the foam is supplied into the water tank.

  The washing machine of the present invention can evenly supply water to the laundry from the early stage of water supply, and has the effect of suppressing uneven washing.

1 is a schematic perspective view of a washing machine according to an embodiment of the present invention. Schematic perspective view of the washing machine with the lid open Schematic sectional view of the washing machine Schematic perspective view explaining movement of laundry by rotation of pulsator of the washing machine Schematic sectional view of a conventional washing machine

  FIG. 1 is a schematic perspective view of the washing machine 100. FIG. 2 is a schematic perspective view of the washing machine 100 with the lid 700 opened. FIG. 3 is a schematic cross-sectional view of the washing machine 100. The washing machine 100 will be described with reference to FIGS. 1 to 3.

  The washing machine 100 includes a housing 600 and a lid 700. The housing 600 includes a lower housing 610 and an upper housing 620. A water storage tank 510 is accommodated in the lower housing 610. The lower casing 610 is formed with a discharge port 611 for discharging water from the washing tub 500. The lid 700 is attached to the upper housing 620. The lid 700 rotates up and down on the upper housing 620. The upper casing 620 is formed with the water supply port 200 described with reference to FIG. 1, and the water supply port 200 is provided with a water supply valve (not shown). A water supply box 330 and a detergent case 400, which will be described later, are incorporated in the upper housing 620.

  A washing tub 500 is accommodated in the water storage tank 510. A pulsator 520 is rotatably disposed at the bottom of the washing tub 500, and the laundry in the washing tub 500 is agitated by the rotation of the pulsator 520. The pulsator 520 is rotationally driven by a motor 530, and the water supply valve, the motor 530, and the like are controlled by control means (not shown).

As shown in FIG. 2, the lid 700 is configured to be rotatable upward. Upper housing 620
The inlet 621 is formed. When the user rotates the lid 700 upward, the washing tub 500 is exposed through the insertion port 621. The user can put the laundry into the washing tub 500 through the insertion port 621.

  The detergent case 400 is disposed so that the handle portion 440 faces the insertion port 621. Therefore, the user can rotate the lid 700 upward to grasp and pull the handle portion 440 of the detergent case 400 exposed from the housing 600.

  An operation panel 800 is disposed in the upper housing 620 of the washing machine 100. The operation panel 800 is disposed between the water supply port 200 and the lid 700. The user can set various operations of the washing tub 500 by operating the operation panel 800.

  In the upper housing 620, a water supply box 330 is disposed below the operation panel 800 and the water supply port 200. The water supplied from the water supply port 200 flows downward and flows into the water supply box 330. The water flowing into the water supply box 330 generates bubbles while dissolving the detergent put in the detergent case 400 and supplies the bubbles to the washing tub 500.

  In the above configuration, when water is supplied, the water supplied from the water supply port 200 flows downward and flows into the water supply box 330. The water flowing into the water supply box 330 generates bubbles while dissolving the detergent put into the detergent case 400 and supplies the generated bubbles to the washing tub 500.

  Simultaneously with the opening of the water supply valve, the pulsator 520 starts to rotate. The pulsator 520 repeats normal rotation and reverse rotation. The forward operation time and the reverse operation time of the pulsator 520 are set to different times.

  In the present embodiment, the pulsator 520 performs forward rotation for 0.6 seconds and reverse rotation for 0.4 seconds. Due to the rotation of the pulsator 520, the pulsator 520 rotates about 3/4 at the time of normal rotation and ½ rotation at the time of reverse rotation.

  As the pulsator 520 repeats normal rotation and reverse rotation, the laundry is stirred and the laundry moves.

  Fig.4 (a) shows the state before the pulsator 520 starts rotation, and has shown laundry A-D. FIG. 4B shows a state in which the pulsator 520 is rotated forward, and a state in which the laundry items A to D are moved from the state of FIG. FIG. 4C shows a state in which the pulsator 520 is reversed from the state of FIG. 4B, and shows a state in which the laundry items A to D have moved from the state of FIG.

  As shown in FIGS. 4A, 4B, and 4C, the laundry A to D move sequentially. By repeating normal rotation and reverse rotation of the pulsator 520, the foam falling from the water supply box 330 can be uniformly supplied to the laundry A to D.

  With a simple configuration in which the forward rotation time and the reverse rotation time of the pulsator 520 are different from each other, the positions of the laundry items A to D during the forward rotation and the reverse rotation of the pulsator 520 can be easily changed.

  In the conventional washing machine, the agitation necessary for washing the laundry could not be performed until the water could be stored at a predetermined water level, but in this embodiment, the laundry can be agitated simultaneously with the start of water supply, and the operation time is reduced. It can be shortened.

  In this embodiment, the forward operation time of the pulsator 520 is set longer than the reverse operation time, but the reverse operation time may be set longer than the normal operation time. Further, the rotation speed of the pulsator 520 during the forward rotation operation may be different from the rotation speed during the reverse rotation operation. By changing the number of rotations of the pulsator 520 during normal rotation and reverse rotation, the mechanical force applied to the laundry can be varied, the amount of movement of the laundry can be varied, and the position of the laundry can be varied.

  The normal operation time and reverse operation time of the pulsator 520 may be set to different predetermined times, but the washing machine has a function of determining the amount of laundry and setting the amount of water supply according to the amount of laundry In this case, the forward operation time and the reverse operation time of the pulsator 520 may be set according to the determined amount of laundry.

  In the washing machine having a function of detecting the vibration of the water storage tank 510 or the washing tub 500, the vibration of the pulsator 520 during the normal rotation operation and the reverse rotation operation are compared, and the vibration during the normal rotation operation and the vibration during the reverse rotation operation are compared. When the difference in vibration is small, the positional change of the laundry is greatly increased by increasing the difference in kinetic energy given to the laundry by stirring during normal rotation and reverse rotation, such as increasing the normal operation time. can do.

  If the difference in vibration of the water storage tank 510 or the washing tub 500 during the forward rotation operation and the reverse rotation operation of the pulsator 520 remains small even if the forward rotation operation time of the pulsator 520 is increased, the washing tub 500 It is estimated that the laundry is caught in the structure in the washing tub 500 and the laundry does not move. Therefore, the laundry is moved by increasing the reverse operation time of the pulsator 520 and shortening the normal operation time. Can be easier.

  In the present embodiment, the pulsator 520 is rotated simultaneously with the opening of the water supply valve disposed at the water supply port 200. However, the pulsator 520 is rotated after a predetermined time has passed so that water reaches the washing tub 500 from the water supply port 200. The sweater 520 may be rotated.

  The present invention is suitably used for various apparatuses having a washing function.

DESCRIPTION OF SYMBOLS 100 Washing machine 200 Water supply port 330 Water supply box 400 Detergent case 500 Laundry tank 510 Water storage tank 520 Pulsator 530 Motor 600 Case

Claims (2)

A housing, a water tank supported in the housing, a washing tank rotatably supported in the water tank, a separator rotatably disposed on the bottom surface of the laundry tank, and the pulsator. A motor that rotates, a water supply valve that controls the supply of water into the water storage tank, a detergent case that is supplied with water when the water supply valve is opened and stores detergent, and a control means that controls the water supply valve and the motor. Prepared,
The control means is configured to open the valve at the same time as the water supply valve is opened, or after a predetermined time has passed so that foam generated in the detergent case is supplied from the water supply valve to the detergent case. A washing machine that rotates the sweater forward and backward. The washing machine according to claim 1, wherein the control means sets the forward operation time and the reverse operation time of the pulsator to different times.

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