JP2007307025A - Washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing machine improved in rinsing process and preventing depletion of water-saving effect by continuously driving a water feed pump in the rinsing process. <P>SOLUTION: A control means 22 sets a water level according to a cloth quantity detected by a cloth quantity detecting means 32 to execute washing and rinsing processes. When an input setting means 23 sets the use of bathwater in the rinsing process, it is possible to improve rinsing performance by continuously driving a water-feed pump 16 to supply a large quantity of water, and at the same time, prevent the depletion of water-saving effect by reusing remaining bath water. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a washing machine having a water supply pump for supplying hot water remaining in a bath, etc., and automatically performing each step of washing, rinsing and dehydration.

Conventionally, when this type of washing machine puts laundry into the washing tub and starts operation, it detects the amount of laundry put in by the cloth amount detection means, and determines the optimum water level according to the detection result. Set the water supply means to supply tap water or supply water from a bath tub, etc., and supply water from the bath tub, etc., and when the detected water level reaches the set water level by the water level detection means, The operation is stopped, and then a washing process and a rinsing process are performed (for example, see Patent Document 1).
JP 2004-173744 A

  However, in the conventional configuration, in the rinsing process, the amount of laundry cannot be detected by the cloth amount detection means, and a water amount higher than the set water level cannot be desired. Further, even if the setting is changed to a higher water level by the input setting means for the user's intention, only the predetermined amount of water can be increased, so that the rinsing performance is limited when the predetermined amount of water is used. Also, if you have set to use tap water in the rinsing process, changing the setting to a higher water level than the set water level will reduce the water-saving effect by increasing the amount of tap water used. It also becomes.

  The present invention solves the above-mentioned conventional problems, and when the use of bath water is set in the rinsing process, the water supply pump is continuously driven in the rinsing process, and the laundry is detected by the cloth amount detecting means. By detecting the amount of water and supplying more water than the set water level or the water level set higher by the user, the rinsing performance is improved and the remaining hot water in the bath is reused. Thus, an object of the present invention is to provide a washing machine that prevents a reduction in the water-saving effect.

  In order to solve the above-described conventional problems, the washing machine of the present invention includes a water receiving tank containing a rotating drum, water supply means for supplying tap water into the water receiving tank, a bath tub in the water receiving tank, and the like. A water supply pump for supplying water from the water, a drainage means at the bottom of the water receiving tub, an overflow outlet at the side surface, a cloth amount detection means for detecting the amount of laundry, a water level detection means for detecting the water level, washing, An input setting means for setting a series of stroke contents such as rinsing and dehydration; a control means for controlling a series of strokes according to the contents of the stroke set by the input setting means and the data detected by the cloth amount detection means and the water level detection means; The control means sets the water level according to the amount of cloth detected by the cloth amount detection means and executes the washing process and the rinsing process, and the use of bath water in the rinsing process is performed by the input setting means. When set , During all or part of the rinsing process step, in which the continue to drive the feed water pump.

  As a result, the amount of laundry is detected by the cloth amount detection means, and a larger amount of water is supplied by reusing the remaining hot water in the bath than the set water level or the water level changed by the user. By doing so, the rinsing performance can be improved and the reduction of the water-saving effect can be prevented.

  In the washing machine of the present invention, the water supply pump is continuously driven in the rinsing process, the amount of laundry is detected by the cloth amount detection means, and is changed to a higher level by the set water level and the user. By supplying a larger amount of water than the water level, the rinsing performance can be improved and the remaining hot water in the bath can be reused to prevent a reduction in the water-saving effect.

  The present invention includes a rotating drum having a horizontal or oblique rotation center axis, a water receiving tub that is elastically supported by a washing machine body and rotatably includes the rotating drum, a motor that rotationally drives the rotating drum, Provided in the middle of a water supply means for supplying tap water into the water receiving tank, a water supply pump for supplying water from a bath tub or the like into the water receiving tank, and a drainage channel communicating with the bottom of the water receiving tank Drainage means for draining the washing water in the water receiving tub, an overflow port overflowing the drainage passage when the level of the washing water in the water receiving tank exceeds the maximum water level, and the laundry in the rotating drum Set by a cloth amount detecting means for detecting the amount of water, a water level detecting means for detecting the water level in the water receiving tub, an input setting means for setting a series of process contents such as washing, rinsing and dehydration, and the input setting means. The contents of the performed process and the cloth quantity inspection Control means for controlling the motor, the water supply means, the water supply pump, etc. according to the data detected by the means and the water level detection means, and the control means sets the water level according to the cloth amount detected by the cloth amount detection means. When the washing process and the rinsing process are executed, and the use of bath water is set in the rinsing process by the input setting means, the water supply pump is driven during all or part of the rinsing process. By detecting the amount of laundry with the cloth amount detection means, and supplying a larger amount of water than the set water level and the water level changed to a higher level by the user, By improving the rinsing performance and reusing the remaining hot water in the bath, it is possible to prevent a reduction in the water-saving effect.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Further, the present invention is not limited by this embodiment.

(Embodiment 1)
1 is a side sectional view of a washing machine according to an embodiment of the present invention, FIG. 2 is a block circuit diagram of the washing machine, and FIG. 3 is an enlarged front view of an operation display panel of the washing machine. As shown in FIG. 1, the rotating drum 1 is formed in a bottomed cylindrical shape, and a large number of water passage holes 2 are provided on the entire surface of the rotating drum 1, and are rotatably disposed in a water receiving tank 3. A rotation axis (rotation center axis) 4 is provided at the rotation center of the rotary drum 1 in a substantially inclined direction, and the axial center direction of the rotary drum 1 is inclined downward from the front side toward the back side. A motor 5 attached to the back surface of the water receiving tank 3 is connected to the rotating shaft 4, and the rotating drum 1 is driven to rotate in the forward and reverse directions. Several protruding plates 6 are provided on the inner wall surface of the rotating drum 1.

  The opening provided in the upward inclined surface on the front side of the water receiving tub 3 is covered with a lid 7 so that it can be opened and closed. By opening the lid 7, the laundry can be taken in and out of the rotary drum 1 through the clothing entrance 8. ing. Since the lid body 7 is provided on the upward inclined surface, the laundry can be carried out without bending the waist.

  The water receiving tub 3 is suspended from the washing machine main body 9 by a spring body 10 and a damper 11 so as to be oscillated and supported by vibration proofing. A drainage path 12 is disposed below the water receiving tub 3, and A drain valve 13 is provided on the way to drain the washing water in the water receiving tank 3.

  In addition, when the use of bath water is set in the rinsing process, the water supply pump 16 is continuously driven during the rinsing process, so that the washing water overflowing from the rotating drum 1 or the water receiving tank 3 overflows. , One end is drained from an overflow port 14 provided on the side surface of the water receiving tank 3 connected to the drainage path 12.

  A water supply means (water supply valve) 15 and a water supply pump 16 supply tap water or bath water into the water receiving tank 3 through a water supply path 17. The water level detection means 18 detects the water level in the water receiving tank 3.

  In the present embodiment, the rotation shaft 4 is provided in a substantially inclined direction at the rotation center of the rotary drum 1 and the axial center direction of the rotary drum 1 is inclined downward from the front side to the back side. However, the rotating shaft 4 may be provided in the substantially horizontal direction at the rotation center of the rotating drum 1, and the axial center direction of the rotating drum 1 may be disposed in the substantially horizontal direction.

  A control device 21 is disposed below the washing machine main body 9, and an input setting unit 23 and a display unit 24 are disposed on the upper front portion.

  The control device 21 has a circuit configuration as shown in FIG. 2, and controls the operation of the motor 5, the drain valve 13, the water supply valve 15, the water supply pump 16, and the like, and sequentially performs a series of steps of washing, rinsing, and dewatering. It has a control means 22 comprising a microcomputer for controlling.

  The control means 22 inputs information from the input setting means 23 for setting the driving course, etc., displays the information on the display means 24 based on the information, informs the user, and starts driving by the input setting means 23. Is set, the data from the water level detection means 18 or the like for detecting the water level in the water receiving tank 3 is inputted and the drain drive valve 13, the water supply valve 15, the water supply pump 16, etc. The operation is controlled and operations such as washing, rinsing and dehydration are performed.

  When the motor 5 is configured as a direct current brushless motor, the current detection means 29 uses the fact that the torque is substantially proportional to the input current, and the current detection circuit 31 detects the current value of the drive circuit 27, etc. A torque of 5 can be detected.

  The cloth amount detection means 32 detects the amount of laundry in the rotary drum 1, and the torque (that is, the load amount) of the motor 5 when the rotary drum 1 is raised to a predetermined rotational speed (for example, 200 r / min). Is calculated by detecting the signal from the current detecting means 29 to detect the amount of laundry in the rotating drum 1.

  The operation display unit is composed of the input setting means 23 and the display means 24. As shown in FIG. 3, the power on / off switch 40 for turning on / off the power, the start / pause for instructing the start or pause of the operation. A switch 41, a bath water setting switch 42 for setting bath water supply, a water level switch 43 for setting the amount of easy washing, a washing switch 44 for setting a washing time, and a rinsing switch 45 for setting the number of times of rinsing. And an input setting device such as a dehydration switch 46 for setting a dehydration time, a reservation switch 47 for setting a washing operation reservation, and a course operation switch 48 for setting a predetermined course operation.

  Further, the bath water supply display on the display means includes a display 42a for supplying bath water only for the washing process, a display 42b for supplying bath water for both the washing process and the rinsing process, and a rinsing process. Only the display 42c in the case of supplying bath water is arranged.

  When the bath water setting switch 42 is pressed, only the display 42a for supplying the bath water only for the washing process is displayed. When the pressing operation is further performed, only the display 42b for supplying the bath water for both the washing process and the rinsing process is displayed. Is displayed, and when the pressing operation is performed again, only the display 42c for supplying the bath water only during the rinsing process is displayed. If the pressing operation is further performed, the display disappears and the bath water is not supplied. It is possible to select how to use the bath water by setting the patrol display so that the display is returned to the display 42a when the bath water is supplied only in the washing process initially displayed.

  Further, the display means sets the water level switch 43 to set the water supply amount to a small amount, a low water level, a medium water level, a high water level, etc. It has a washing time display section 44b for displaying for 30 minutes, a display section 45b for setting the number of times of rinsing and water injection rinse, a dehydration time display section 46b, and the like.

  About the washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  After the lid 7 is opened, the laundry is put into the rotary drum 1 from the clothing doorway 8 and the lid 7 is closed, the content of the stroke is set by the input setting means 23 and the operation is started. The amount of laundry in the rotating drum 1 is detected.

  Here, when the cloth amount detection operation starts, the control means 22 increases the rotation speed while balancing the laundry in the rotary drum 1, and the rotation speed of the rotary drum 1 is in the range of 150 r / min to 200 r / min. The current detection circuit 31 detects the amount of laundry in the rotary drum 1.

  When the detection of the amount of laundry is completed, the control means 22 sets an optimum water level according to the detected amount of laundry, and controls the water supply means 15 or the water supply pump 16 via the load driving means 25. Water is supplied into the rotary drum 1 and the water receiving tank 3. Then, when the water level is detected by the water level detecting means 18 and reaches the set water level, the water supply is terminated, the motor 5 is controlled via the drive circuit 27, the rotating drum 1 is rotated, and the washing process is performed.

  When the rest of the bath water is used for the water supply of the washing process, the bath water is supplied by the operation of the bath water setting switch 42 when the bath water is supplied only in the washing process, or in both the washing process and the rinsing process. The case display 42b is lit (or blinked).

  After the washing process is completed, the process proceeds to the rinsing process. If the input setting unit 23 sets the process content and the use of tap water is set during the rinsing process, the control unit 22 in the rinsing process uses the load driving unit 25. The water supply means 15 is controlled via the water supply, water supply is started, the water level is detected by the water level detection means 18, water is supplied until the set water level is reached, and then the motor 5 is controlled via the drive circuit 27. Then, the rotating drum 1 is rotated and the rinsing process is performed.

  When the rest of the bath water is used for rinsing, the bath water setting switch 42 is operated to display the display 42b when the bath water is supplied for both the washing stroke and the rinsing stroke, or the bath water is supplied only for the rinsing stroke. The display 42c of the case is turned on (or blinked), and the control unit 22 controls the feed water pump 16 to continue to be driven via the load driving unit 25.

  When the water level is detected by the water level detection means 18 and reaches the set water level, the motor 5 is controlled via the drive circuit 27 to rotate the rotating drum 1 and perform the rinsing process. Since the water supply pump 16 continues to be driven while rotating the rotary drum 1, bath water continues to be supplied into the rotary drum 1 and the water receiving tank 3. Accordingly, the washing water overflows from the rotating drum 1 or the water receiving tub 3. The overflowing washing water is drained through the overflow port 14 and the drainage path 12.

  The rinsing process can be set to one rinsing, two rinsings, three rinsings, four rinsings or four rinsings, as shown in the display section 45b of the number of rinsings and irrigation rinsing settings. When the bath water is set to be used three times, the water supply pump 16 may be continuously driven during the three rinsing steps, or the water supply pump may be used during the first and second rinsing steps. It is also possible to control to stop driving of the water supply pump 16 when the water supply pump 16 is driven to the set water level and the set water level is reached.

  Alternatively, in the third rinsing, the water supply means 15 is controlled to optimally set the use of bath water and tap water, such as supplying tap water, and optimal control can be performed to improve the water-saving effect and rinsing performance. Is possible.

  As described above, when the use of bath water is set in the rinsing process, the cloth amount detection means allows the laundry amount to be detected by continuously driving the water supply pump during all or part of the rinsing process. By detecting the amount, supplying more water than the set water level and the water level changed to higher by the user, improving the rinsing performance and reusing the remaining hot water in the bath, A decrease in the water-saving effect can be prevented.

  Although the embodiment of the present invention has been described with a drum-type washing machine, the same effect can be obtained even with a vertical fully automatic washing machine.

  As described above, when the use of bath water is set in the rinsing process, the washing machine according to the present invention continues to drive the water supply pump in the rinsing process so that the laundry amount is detected by the cloth amount detection unit. By detecting the amount, supplying more water than the set water level and the water level changed to higher by the user, improving the rinsing performance and reusing the remaining hot water in the bath, Since it is possible to prevent a reduction in the water-saving effect, it can also be applied to uses such as a drum-type washing and drying machine having a drying function.

Side sectional view of the washing machine of the embodiment of the present invention Block diagram of the washing machine An enlarged front view of the operation display panel of the washing machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotating drum 3 Water receiving tank 5 Motor 9 Washing machine main body 12 Drainage path 13 Drain valve (drainage means)
DESCRIPTION OF SYMBOLS 14 Overflow port 15 Water supply means 16 Water supply pump 18 Water level detection means 21 Control apparatus 22 Control means 23 Input setting means 24 Display means 32 Cloth amount detection means

Claims (1)

A rotating drum having a horizontal or oblique rotation center axis; a water receiving tub that is elastically supported by a washing machine body and rotatably includes the rotating drum; a motor that rotationally drives the rotating drum; and the water receiving tub A water supply means for supplying tap water, a water supply pump for supplying water from a bath tub or the like into the water receiving tank, and the water receiver provided in the middle of a drainage path communicating with the bottom of the water receiving tank. Drainage means for draining the wash water in the tank, an overflow port overflowing the drainage path when the water level of the wash water in the water receiving tank exceeds the maximum water level, and detecting the amount of laundry in the rotating drum A cloth level detecting means, a water level detecting means for detecting the water level in the water receiving tank, an input setting means for setting a series of process contents such as washing, rinsing and dehydration, and a process set by the input setting means. Contents and the cloth amount detecting means and Control means for controlling the motor, the water supply means, the water supply pump, etc. according to the data detected by the water level detection means, and the control means sets the water level according to the amount of cloth detected by the cloth amount detection means and performs washing. When the use of bath water is set in the rinsing stroke by the input setting means, the water supply pump is continuously driven during all or a part of the rinsing stroke. Like a washing machine.

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