JP2012075505A - Drum-type washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drum-type washer capable of preventing the smudge of clothes by improving the washing performance.SOLUTION: A drum-type washer comprises: a water tank 52; a rotation drum 53; a motor 54; a water feeding valve 85 for feeding water into the water tank 52; operation display means 74 composed of input setting means 83 and display means 84; an exhaust port 71 disposed at the inner bottom of the water tank 52; a water exhaust valve 59 communicating with the exhaust port 71; cloth amount detection means 91 for detecting an amount of clothes; and controlling means 88 which sequentially controls a smudge prevention course as well as a series of processes of washing, rinsing, dehydrating and drying by controlling e.g. the water feeding valve 85 and the motor 54. If the smudge prevention course is selected by the input setting means 83, the cloth amount detection means 91 detects a cloth amount and then the controlling means displays a water level corresponding to the cloth amount and a detergent amount nearly twice as much as the normal detergent amount corresponding to the water level using the display means 84, so that the washing performance can be improved with a high concentration of detergent and the smudge of clothes can be prevented.

Description

  The present invention relates to a drum-type washing machine that improves washing performance and prevents darkening of clothes.

  Conventionally, in this type of washing machine, in order to improve the washing performance, a control method for washing in a high concentration state of the washing liquid has been proposed. (For example, refer to Patent Document 1).

  FIG. 7 is an operation flowchart of the conventional washing machine described in Patent Document 1, FIG. 8 is a front view of the water amount setting key of the washing machine, and FIG. 9 is a display mode for displaying the detergent amount of the washing machine. FIG.

  In FIG. 7, when the power supply is turned on and the high-concentration operation course is selected (YES in step S1), the amount of water used is displayed on the display lamp shown in FIG. 8, and (a) or ( An indication of the amount of detergent to be introduced is displayed using a display lamp as shown in b) (step S2). The user puts the detergent into the inner tub according to this display. Here, in Patent Document 1, the amount of detergent is displayed in a larger amount than the amount necessary for the standard operation course, and the amount of water supply is made smaller than that in the standard operation course. And the amount of water supply is fixed according to the load less than a rating. For example, the amount of water is 30 liters, and the amount of detergent at this time is displayed as 60 g. This is about 3 times the detergent concentration compared to the set value when the amount of laundry is set to 3 kg in the standard selection course, the amount of water of 39 liters and the amount of detergent of 27 g.

  When the detergent is put on the basis of the detergent amount display and the washing is started, water is supplied up to the set water supply amount (step S3) and the washing process is started (step S11). When the predetermined washing time has elapsed (YES in step S12), the next rinsing process is started. When the pickled high-concentration course is selected (YES in step S4), the amount of water is displayed, the amount of detergent is displayed (step S5), and water is supplied (step S6), as in the case of the high-concentration washing course. Enter the set period. And it progresses to step S7, S8, S9, and when pickling is completed (YES of step S10), it will enter into a washing process (step S11) like the above.

  According to the above control method, the washing power can be increased by washing with more detergent and less water than the standard operation course.

JP 2000-342887 A

  However, in the conventional configuration shown in Patent Document 1, the clothes are forcibly stirred in the washing tub (inner tub) in order to wash the specified amount of clothes with a smaller amount of water than the specified amount of water. In Patent Document 1, a vertical fully automatic washing machine is described as an embodiment, but the water tub (outer tub) containing the inner tub is not limited to the vertical washing machine, even in a drum type washing machine. If the clothes are forcibly agitated in the inner tub, the entire outer tub will be shaken greatly, resulting in increased vibration and noise. In the worst case, the outer tub is Had the problem of crashing into

  An object of the present invention is to solve the above-mentioned conventional problems, and to provide a drum-type washing machine capable of improving the cleaning performance and preventing the darkening of clothes without impairing the vibration performance and capable of finishing with high quality. To do.

  In order to solve the above-described conventional problems, a drum-type washing machine of the present invention includes a water tub that is swingably supported within a washing machine body, and a rotating drum that is included in the water tub and has a bottomed cylindrical shape. A motor for rotating the rotary drum, a water supply valve for supplying water into the water tub, an operation display means provided on the front upper part of the washing machine main body and comprising input setting means and display means, A drainage port provided at the bottom of the bottom, a drainage valve communicating with the drainage port, a cloth amount detection means for detecting the amount of clothing, a control valve for the water supply valve and motor, etc., and a series of washing, rinsing and dehydration And a control means for sequentially controlling a darkening prevention course for preventing darkening of clothing and the control means, when the blackening prevention course is selected by the input setting means, the cloth amount detection means After detecting the amount, cloth is displayed on the display means. And the corresponding water level, by displaying the substantially twice the amount of detergent in the standard amount of detergent corresponding to the water level, it is possible to prevent the darkening of the clothing to enhance the cleaning performance with a high detergent concentration.

  The drum type washing machine of the present invention can achieve a high quality finish by operating on a darkening prevention course (high quality finishing course).

The longitudinal cross-sectional view of the drum type washing machine in the 1st Embodiment of this invention Block diagram of the drum type washing machine An example of the operation display unit of the drum type washing machine Flow chart of washing and dehydration control of high-grade finishing course of the drum type washing machine An example figure of an operation display part of a drum type washing machine in a 2nd embodiment of the present invention. Flow chart of washing and dehydration control of high-grade finishing course of the drum type washing machine Operation flowchart of conventional washing machine described in Patent Document 1 Front view of water amount setting key of the washing machine The figure which shows the display mode which displays the detergent amount of the washing machine

  According to a first aspect of the present invention, there is provided a water tank swingably supported in a washing machine body, a rotating drum enclosed in the water tank and formed in a bottomed cylindrical shape, a motor for rotationally driving the rotating drum, A water supply valve for supplying water into the aquarium, operation display means provided at the upper front of the washing machine main body, comprising input setting means and display means, a drain outlet provided at the inner bottom lower part of the aquarium, and the drainage A drainage valve communicating with the mouth, a cloth amount detecting means for detecting the amount of clothing, a series of washing, rinsing and dehydration processes, and a darkening prevention course for preventing the darkening of clothing by controlling the water supply valve and motor, etc. Control means for sequentially controlling the amount of cloth, and when the darkening prevention course is selected by the input setting means, the control means detects the cloth amount by the cloth amount detection means and then adjusts the cloth amount by the display means. Corresponding water level and standard detergent corresponding to the water level By displaying substantially twice the amount of detergent, it is possible to prevent the darkening of the clothing to enhance the cleaning performance with a high detergent concentration.

  In a second aspect of the invention, in particular, in the first aspect of the invention, in the darkening prevention course, the control means displays the water level and the amount of detergent, then operates the water supply valve to supply water, and rotates the motor to drive the prewash process. After performing the drainage, operate the drain valve to drain, operate the water supply valve again to supply water, rotate the motor to perform the main washing process, improve the cleaning performance and prevent darkening of clothes, High quality can be finished.

  In particular, the third aspect of the invention includes the liquid detergent automatic charging device according to the first or second aspect of the invention, and the control means controls the cloth amount detection means when the darkening prevention course is selected by the input setting means. After detecting the amount of cloth, the water level corresponding to the amount of cloth is displayed on the display means, and the amount of detergent approximately twice the amount of the standard liquid detergent corresponding to the water level is operated in the water tank by operating the liquid detergent automatic charging device. By putting it in, the user can save the trouble of putting in the detergent, prevent mistakes in putting the detergent, improve the cleaning performance, prevent darkening of the clothes, and finish with high quality.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a longitudinal sectional view of a drum type washing machine according to a first embodiment of the present invention, and FIG. 2 is a block circuit diagram of the drum type washing machine.

  As shown in FIG. 1, a water tank 52 is swingably disposed inside a washing machine main body 51, and a rotary drum 53 is rotatably disposed in the water tank 52. It is rotationally driven by a motor 54 attached to the back side from the outside.

  Further, the drum type washing machine of the present invention automatically controls the motor 54, the water supply system 55, the drainage system 56, the drying system 57, etc. shown in FIG. 1 according to the mode setting and control program, and at least the washing process, the rinsing process, A so-called drum type washing machine having a function of performing a dehydration process and a drying process is configured. However, the drying system 57 can be omitted.

  The water supply system 55 supplies water into the water tank 52 in a timely manner, as indicated by a solid arrow a, by opening and closing a water supply valve 85 (described later in FIG. 2) via a water supply path 75 provided on the left side of the center as viewed from the front. In addition, the detergent in the detergent container 58 can be poured into the water tank 52 together with tap water in a timely manner using water supply.

  The drainage system 56 is connected to a drainage port 71 formed in the lower part of the inner bottom of the water tank 52 as indicated by an alternate long and short dash line arrow b when necessary at the end of the washing process or the end of the rinsing process by opening and closing the drainage valve 59. It is installed in the filter case 67 through the drainage pipe 60, collects lint and passes through a drainage filter 61 that can be removed from the outside, and then passes through a connection hose 72 and a drainage valve 59 to the outside of the machine. It can be drained. A concave drainage groove 76 is formed at the inner lower part of the side wall of the water tank 52 so that the water can be easily drained into the drainage port 71.

  An air trap 68 is formed on the upstream side of the drain valve 59, connected to a water level detection means 78 (described later in FIG. 2) configured by a pressure sensor or the like with an air pipe 69, and water is supplied into the water tank 52. Multiple levels of water can be detected by the water pressure of the wash water.

  The rotary drum 53 is directly connected to a motor 54 fixed to the outer bottom portion of the water tank 52 by a rotary shaft 63 arranged so as to be inclined substantially horizontally or downwardly from the horizontal direction. The clothes thrown into the rotating drum 53 from the section are stirred and washed. The open / close door 64 is sealed and opened through a sealing material 66 attached to the opening edge 65 of the water tank 52.

  The drying system 57 circulates the air in the water tank 52 and the rotating drum 53 by a blower 62 having a blower fan motor 77 as shown by a broken line arrow c in FIG. In the drying system 57, a filter (not shown) that collects and removes dust from the yarns, a dehumidifying part that dehumidifies the introduced air after dust removal, and heating the dehumidified air to dry high temperature air. A heat pump device 86 (described later in FIG. 2).

  In addition to the above, when necessary, such as during the washing preparation process, during the washing process, and during the rinsing process, the water in the water tank 52 is circulated through the circulation channel 78 to prevent premature dissolution and bias of the detergent, and easy washing. It has a function to improve the function.

  For example, during the washing process, the circulation system water channel 78 drives the circulation pump 79 formed of a motor having a variable rotation speed to allow the water in the water tank 52 to pass through the drainage filter 61 through the drainage pipe 60 at the bottom. As the circulating water indicated by the arrow d, from the plurality of injection holes 82 formed in the front part of the water tank 52 through the inflow side path 80 to the circulation pump 79, the circulation pump 79, and the discharge side path 81 from the circulation pump 79. It is injected into the rotating drum 53.

  Selection of a mode such as an operation course and various functions is performed by an input setting means 83 (described later in FIGS. 2 and 3) and a display means 84 (FIG. 2, FIG. 2) provided on the operation panel 73 at the upper front of the washing machine body 51. The control device 70 is displayed on the display means 84 on the operation panel 73 on the basis of the input information and informs the user based on the input information. When the operation start is set by the input setting means 83 at 73, data from the water level detecting means 78 for detecting the water level in the water tank 52 is inputted, and the operation of the motor 54, the drain valve 59, the water supply valve 85, etc. Control, and perform operations such as washing, rinsing, dehydration, and drying.

  In the block circuit diagram of FIG. 2, the control means 88 of the control device 70 is constituted by a microcomputer or the like, and starts operation when power is supplied from a commercial power supply 89 when the power switch 90 is turned on. The outputs of the water level detection means 78 and the temperature detection means 92 and 93 are input, and the setting contents are displayed on the display means 84 based on the contents set by the user input in the input setting means 83, and the bidirectional thyristor. The operation of the motor 54, the fan motor 77 for blower, the heat pump device 86, the drain valve 59, the water supply valve 85, the circulation pump 79, and the like is controlled via a load driving means 87 constituted by a relay and the like, washing, rinsing and dehydration. Control each step of drying. Further, the input setting means 83 and the display means 84 constitute an operation display means 74.

  In the above configuration, operations of washing, rinsing, and dehydration processes when the darkening prevention course (high quality finishing course) referred to in the present application is selected will be described.

  FIG. 3 is an example of an operation display unit of the drum type washing machine according to the first embodiment of the present invention, and FIG. 4 is a flowchart of washing to dewatering control of the high-quality finishing course of the drum type washing machine. This will be described with reference to FIGS.

  First, the user opens the opening / closing door 64 and puts clothes into the rotary drum 53. In the operation display section diagram of FIG. 3, the input setting means 83 presses the power-on button 83a to turn on the power, the course button 83c selects the high-quality finishing course 84a, the start button 83b is pressed, and the operation is started. Start.

  In addition, the input setting means 83 includes a washing / drying switch button 83d for setting washing and drying, a process button 83e for setting a process from washing to drying, and a water level button 83f for setting a water level. The user can freely set the water level according to the amount of cloth, but if the user does not set the water level, the water level of low to high 2 is automatically set based on the result of cloth amount detection. In the case of a high-quality finishing course that prevents darkening of clothes, a low water level or a medium water level is automatically set.

In the flowchart of FIG. 4, when the high-quality finishing course is selected and started (YES in step S1), the cloth amount input by the cloth amount detection means 91 is detected (step S2),
In step S3, the control means 88 displays the water level according to the amount of cloth, in this case, the low water level or the middle water level on the water level display portion 84b, and at the same time, the normal detergent concentration with respect to the water level at that level is approximately 2 The double detergent amount is displayed on the digital display 84c as the amount (cup) of the detergent cup. For example, when the amount of cloth is 4.5 kg, the specified water level that is automatically set is the middle water level, and the amount of detergent with a normal detergent concentration is 0.8 cup of detergent cup, but it is doubled in the high-grade finishing course. 1.6 cups of is displayed.

  In step S4, when the user inputs the displayed amount of detergent, water supply starts (step S5). When the predetermined amount of water supply is completed, the water supply stirring is started in step S6. In the water supply agitation, the circulation pump 79 is driven, and the washing water in the water tank 52 is sprayed as circulating water into the rotating drum 53 from the injection hole 82 at the top of the water tank 52 to accelerate the dissolution of the detergent, and at the same time. Is driven, the rotating drum 53 rotates, the clothes are stirred, and the pre-washing process starts.

  When the pre-washing process is finished and the clothes are cleaned to some extent, the drain valve 59 is opened to drain water (step S7). In the drainage, after draining to the lowest rank level that can be detected by the water level detection means 78, the drain valve 59 is closed after another 10 seconds. By this drainage, a certain amount of dirt peeled from the clothes is discharged out of the machine. Then, water supply is performed to the same water level as step S5 (step S8).

  That is, the concentration of the detergent in the water tank 52 becomes approximately one time, which is a normal concentration, by the drainage in step S7 and the water supply in step S8 after the pre-washing process. In step S9, washing and stirring in the main washing process is performed.

  In the next process, the rinse (1) process, the drain valve 59 is opened and the water in the water tank 52 is drained (step S10), then intermediate dehydration is performed (step S11), and centrifugal force is applied to the clothing. After the water is separated from the clothes, the water is supplied to the washing level by water supply, and the motor 54 is driven to start the rinsing and stirring for removing the detergent solution from the clothes (step S12).

  In the rinsing process (2), that is, the final rinsing process, drainage (step S13) and intermediate dewatering (step S14) are performed in the same manner as the rinsing process (1). After that, rinsing and stirring are started (step S15). ).

  In the dehydration process, after rinsing is completed, the drain valve 59 is opened to drain the water in the water tank 52, the motor 54 is driven, the rotating drum is rotated at a high speed, and centrifugal force is applied to the clothing, thereby supplying moisture to the clothing. (Step S16).

  As described above, in the first embodiment, in the darkening prevention course (high-quality finishing course) for preventing darkening of clothes, a prewash process is performed with approximately twice the amount of detergent, and then drained. By supplying water again and carrying out the main washing process at a concentration of about 1 times the normal detergent concentration, it is possible to improve the washing performance without impairing the vibration performance, prevent darkening of clothes, and achieve a high quality finish. it can.

(Embodiment 2)
FIG. 5 is an example of an operation display unit of the drum type washing machine according to the second embodiment of the present invention, and FIG. 6 is a flowchart of washing to dehydration control of the drum type washing machine.

The drum type washing machine in the second embodiment is provided with an automatic liquid detergent charging device (not shown) inside the washing machine main body 51 and sealed by an air pump (not shown). The air pressure in the tank (not shown) is increased, and the liquid detergent is put into the water tank 52 by the air pressure.

  As shown in FIG. 5, the operation display unit is provided with a liquid detergent automatic input button 83 g so that the user can set it before starting washing.

  In the flowchart of FIG. 6, steps S1, S2 and steps S5 to S16 are the same as those of the first embodiment of FIG.

  In FIG. 6, when the high-quality finishing course is selected (YES in step S1), automatic liquid detergent is selected (YES in step S101), and the cloth amount is detected in step S2, the control means in step S102. In 88, the water level corresponding to the amount of cloth, in this case, the low water level or the middle water level is displayed on the water level display portion 84b, and at the same time, the liquid detergent amount approximately twice the normal detergent concentration with respect to the water level at that water level. The amount of the detergent cup (cup) is displayed on the digital display portion 84c. For example, when the amount of cloth is 4.5 kg, the specified water level that is automatically set is the middle water level, and the amount of liquid detergent with a normal detergent concentration is 0.8 cup of detergent cup, but in the high-grade finishing course, it is 2 Double 1.6 cups are displayed.

  Next, in step S103, the air pump of the liquid detergent automatic charging device is driven for a predetermined time, and the displayed liquid detergent amount is automatically charged into the water tank 52. Thereafter, as in FIG. 4, steps S5 to S16 proceed, and washing is completed.

  As described above, in the second embodiment, the liquid detergent amount is approximately doubled by selecting the automatic liquid detergent input in the darkening prevention course (high quality finishing course) for preventing darkening of clothes. Automatic washing, pre-washing with that amount of detergent, then draining and re-supplying water, and performing main washing at a concentration of about 1 times the normal detergent concentration, improves the washing performance without impairing vibration performance Therefore, it is possible to prevent darkening of clothing and to achieve a high quality finish.

  As described above, the drum type washing machine according to the present invention can improve washing performance and prevent darkening of clothes without impairing vibration performance, so it can be applied to other washing machine applications. it can.

DESCRIPTION OF SYMBOLS 51 Washing machine main body 52 Water tank 53 Rotating drum 54 Motor 59 Drain valve 71 Drain port 74 Operation display means 83 Input setting means 84 Display means 85 Water supply valve 88 Control means 91 Cloth amount detection means

Claims (3)

A water tank supported in a swingable manner in the washing machine body, a rotating drum enclosed in the water tank and formed in a bottomed cylindrical shape, a motor for rotationally driving the rotating drum, and water supply for supplying water to the water tank A valve, an operation display means provided at the upper front of the washing machine main body, comprising an input setting means and a display means, a drain opening provided at the bottom of the inner bottom of the water tank, and a drain valve communicating with the drain outlet And a cloth amount detecting means for detecting the amount of clothes, and a control means for controlling the water supply valve, the motor, etc., and sequentially controlling a series of steps of washing, rinsing and dehydration, and a darkening prevention course for preventing darkening of clothes. And when the input setting means selects a darkening prevention course, the control means detects the cloth amount by the cloth amount detection means, then the water level corresponding to the cloth amount by the display means, and the water level Washing approximately twice the amount of standard detergent corresponding to Drum type washing machine and displaying the amount. In the darkening prevention course, the control means displays the water level and the amount of detergent, then supplies the water by operating the water supply valve, rotates the motor to perform the pre-washing process, then operates the drain valve to drain the water, The drum type washing machine according to claim 1, wherein the water supply valve is operated again to supply water, and the motor is rotated to perform the main washing process. In addition to having an automatic liquid detergent charging device, the control means, when the darkening prevention course is selected by the input setting means, after detecting the cloth amount by the cloth amount detection means, the display means sets the water level corresponding to the cloth amount. The drum-type washing machine according to claim 1 or 2, wherein the drum-type washing machine displays the amount of detergent that is approximately twice the amount of standard liquid detergent corresponding to the water level and puts the detergent into the water tank by operating the liquid detergent automatic charging device.