JPH07116381A - Control device for full automatic washing machine - Google Patents

Abstract

PURPOSE:To prevent a wrinkle from occurring on a laundry, and selectively and evenly wash clothes having a different degree of contamination by providing a water supply means performing the prescribed water feed function after spinning at a pre-washing process, regarding a device where the pre-washing and substantial washing processes take place in a time series. CONSTITUTION:The first spinning process takes place through the first water feed, washing and drainage processes, when a washing course selecting signal is inputted at a standard washing process controlled with a microcomputer 30. In other words, a drive motor 1 is rotated unidirectionally, and a basket 6 and an agitator 8 are concurrently rotated at high speed with a drain valve 18 kept open. As a result, washing water in clothes is discharged via a dehydration hole 6a on a centrifugal force, and further discharged outside a washer through a drain hose 19. After this spinning process, the second water feed process is controlled. For this purpose, the drain valve 18 is closed and a feed valve 16 is opened to supply water to the basket 6. Thereafter, the first rinsing process takes place.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a fully automatic washing machine, and more particularly to a separate washing and washing control suitable for efficiently and economically washing clothes with a lot of dirt and clothes with a little dirt. .

[0002]

2. Description of the Related Art In a fully automatic washing course of a fully automatic washing machine, when laundry clothes are put in and a "start" instruction is given,
All processes from "washing", "rinsing", and "dehydration" are automatically executed in chronological order. Therefore, when washing clothes with a lot of dirt and clothes with a little dirt, it is necessary to sort the clothes according to the degree of dirt and wash according to the dirt. For this reason, the time required for washing, the amount of detergent used, the amount of water used, the amount of electric power used, etc. increase, which is an uneconomical washing method.

Further, as a method of separately washing clothes with a large amount of dirt and clothes with a small amount of dirt, the fully automatic washing machine is set in the "washing" step of the manual washing course, and the clothes with large amounts of dirt are washed and taken out first. There is a method of temporarily storing in a bucket or the like, and then washing clothes with little dirt.

In order to avoid the inconvenience of washing the dirty clothes first with the dirty water when washing the dirty clothes first, wash the dirty clothes first and take them out. Temporarily store in a bucket, etc., and then go to the "washing", "rinsing" and "dehydrating" steps for heavily soiled clothes, and then wash the washed clothes that were temporarily stored in the bucket etc. in the manual washing course. A method of washing by performing "rinsing" and "dehydration" steps has also been proposed. However, this washing method hinders labor saving and is uneconomical in terms of required time and power consumption.

Further, in the conventional washing method, when a Y-shirt or the like having a large amount of dirt on the collar and an undergarment or the like having a small amount of dirt are washed together, there is a problem in that the collar of the Y-shirt remains dirty and unevenly washed.

[0006]

As described above, in the washing using the conventional fully automatic washing machine, when trying to separately wash clothes having different degrees of dirt, labor saving is hindered,
There is a problem that it becomes uneconomical in terms of required time or power consumption.

An object of the present invention is to provide a control device for a fully automatic washing machine which can easily and evenly and economically wash clothes with different degrees of dirt using a fully automatic washing course. It is in.

[0008] Specifically, in a washing method according to a fully automatic washing course in a fully automatic washing machine, clothes with a lot of dirt and clothes with little dirt are separately washed. Method of setting washing conditions for controlling "main washing" to be washed later, detection method for grasping the amount of laundry including dry clothes newly put in "main washing" and wet clothes that have been prewashed And "prewash"
And improving the method of setting the washing conditions to control the washing time of "main washing", etc., and to realize a controller for a fully automatic washing machine that can easily and evenly and economically realize separate washing. .

[0009]

SUMMARY OF THE INVENTION The present invention comprises a pre-wash that automatically performs a wash step and a drainage and / or dehydration step,
In a controller for a fully automatic washing machine that performs time-sequential main washing in which pauses, washing steps, rinsing steps, and dehydration steps are automatically performed, predetermined water supply is performed after the drainage and / or dehydration steps of the pre-wash. It is characterized by the provision of water supply means
Alternatively, a fully-automatic washing machine that performs a time-sequential pre-wash that automatically executes the washing process and drainage and / or dehydration process, pause, and main washing that automatically executes the washing process, rinsing process, and dehydration process In the control device, the water supply means for supplying a predetermined amount of water after the drainage and / or dewatering step of the prewash and a stirring means for temporarily stirring the laundry in a water supply state by the water supply means are provided. Alternatively, control of a fully automatic washing machine that performs pre-washing that automatically executes the washing step and drainage and / or dehydration step and main washing that automatically executes the washing step, rinse step, and dehydration step in time series In the apparatus, a means for storing the cloth amount detection information and / or the prewash washing condition in the prewash, and the washing condition in the main wash for the cloth amount detection information and the stored prewash condition. Cloth amount detection information and Alternatively, a main washing / washing condition setting means for setting with reference to washing conditions is provided, and further, a pre-washing process for automatically executing a washing process and a drainage and / or dehydration process, a washing process, and a rinsing process. In a controller of a fully automatic washing machine that performs one of a plurality of types of main washing that automatically executes the dehydration process in a time series, refer to the selected type of main washing to determine the washing conditions for the pre-wash. It is characterized in that a prewashing / washing condition setting means for setting is provided.

[0010]

[Function] Since the pause provided between the prewash and the main wash passes while water is being supplied, the occurrence of wrinkles in the laundry is prevented. In addition, since the laundry amount detection information and / or the washing conditions of the pre-wash and the main wash are referred to in a linked manner, it is possible to set a suitable washing condition comprehensively. Different clothes can be easily and evenly and economically separated and washed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a vertical sectional side view of a fully automatic washing machine according to the present invention. An outer tub 3 is suspended inside the outer frame 1 by four suspension rods 2. The upper end of the suspension rod 2 engages with the corner plates 4 provided at the four corners of the outer frame, and the lower end of the suspension bar 2 has a compression spring 5 interposed to absorb the vibration of the outer tub 3 during washing and dehydration. To engage with the outer tub 3. A washing tub 6 having a large number of dehydration holes 6a is rotatably provided in the outer tub 3, a balance ring 7 is provided at an upper opening edge of the washing tub 6, and a stirring is provided at a bottom portion of the washing tub 6. The blade 8 is rotatably provided.

A laundry inlet 1a formed on the outer frame 1
Is opened so as to face the upper end openings of the outer tub 3 and the laundry tub 6, and a lid 9 for covering the laundry inlet 1a is provided so as to be openable and closable.

The washing tub 6 and the stirring blades 8 are the outer tub 3
Is connected to a power transmission mechanism portion 10 provided on the outer side of the bottom of the drive motor 11, and the drive force applied from the drive motor 11 via the drive pulley 12, the belt 13 and the driven pulley 14 is selectively transmitted. The power transmission mechanism unit 10 has a reduction gear, a clutch, and a brake mechanism built-in, and is controlled by a control circuit described later to apply a braking force to the outer tub 3 so that the outer tub 3 and the stirring blades 8 rotate together. Alternatively, the selective power transmission is performed so that the stirring force is applied only to the stirring blade 8.

A water supply port 15 for supplying water from the upper openings of the outer tub 3 and the washing tub 8 is connected to a water supply pipe 17 via a water supply valve 16, and a drain port 3a opening at the bottom of the outer tub 3 is a drain valve. Connected to a drain hose 19 via 18.

Reference numeral 20 is a communication pipe 2 connected to the outer tank 3.
A water level sensor 22 connected to the upper end of 1 is a control unit.

FIG. 2 shows an electric circuit centering on the microcomputer 30 provided in the control section 22.
The microcomputer 30 includes a timer 31, a central processing unit (CPU) 32, a memory 33, and an input port 34.
And an output port 35 and the like, and these are connected by a data bus and an address bus. The CPU 32 includes a calculation unit and a control unit, and executes control processing according to a control program stored in the memory 33.

The memory 33 includes a ROM section for storing control programs and fixed data, and a RAM section used as a work area for temporary data storage and arithmetic processing such as various detection information and setting conditions.

The input port 34 includes the CPU 32 and a power switch 36 which is an input device, the water level sensor 20, a lid switch 37 which responds to opening and closing of the lid 9, a program selection switch 38 for selecting a washing course, and a start / stop switch 39. The output port 35 mediates the transmission / reception of signals between the cloth amount sensor 40 and the like, and the output port 35 includes the CPU 32 and the drive motor 11, which is an output device, the water supply valve 16, the drain valve 1.
8, the transmission and reception of signals is mediated between the power transmission mechanism unit 10, the alarm 41, the display panel unit 50, and the like. Each of the input device and the output device includes a signal processing circuit or a drive circuit as needed.

FIG. 3 shows a standard washing process controlled by the microcomputer 30 in the fully automatic washing machine thus constructed. The microcomputer 30
When the power switch 36 is turned on, the laundry course selection signal is input from the program selection switch 38, and the start signal is input from the start / stop switch 39,
The control process for executing the washing process of the selected washing course is started.

First, the first "water supply" step S1 is controlled. In this control, the water supply valve 16 is opened to open the washing tub 6
And the signal from the water level sensor 20 is monitored, and when the amount of water in the washing tub 6 reaches a specified amount, control is passed to the "washing" step S2. In this control, the drive motor 11 is rotated normally and reversely, and the power transmission mechanism 10 is operated so that the stirring blade 8 is normally and reversely rotated while the washing tub 6 is stopped. This process is terminated when the predetermined washing time has elapsed.

Next, the first "drainage" step S3 is controlled. In this control, the drain valve 18 is opened to open the outer tank 3
And the water in the washing tub 6 is discharged to the outside of the machine from the drain hose 19.

Next, the first "dehydration" step S4 is controlled. In this control, with the drain valve 18 kept open, the drive motor 11 is continuously rotated in one direction to rotate the washing tub 6 and the stirring blade 8 together at a high speed, and the power transmission mechanism 10 To operate. In this process,
The washing water in the clothes is discharged from the dehydration hole 6a by centrifugal force, and is discharged to the outside of the machine through the drain valve 18 and the drain hose 19.

Next, the second "water supply" step S5 is controlled. In this control, the drain valve 18 is closed and the water supply valve 1
6 is opened and water is supplied into the washing tub 6. This water supply is for "rinsing", and water is supplied to a water level suitable for rinsing.

Next, the first "rinsing" step S6 is controlled. In this control, the drive motor 11 is rotated normally and reversely, and the power transmission mechanism 10 is operated so that the stirring blade 8 is normally and reversely rotated while the washing tub 6 is stopped. When the predetermined rinsing time has elapsed, this process ends.

Then, similarly, the second "drainage" step S is performed.
7. The second "dehydration" step S8, the second "rinsing" step S9, and the third "drainage" step S10 are sequentially executed to control the execution of the "final dehydration" step S11.

Next, a cloth amount sensor 40 for detecting the amount of cloth to be washed will be described with reference to FIG. The cloth amount sensor 40 is configured to detect the amount of cloth in the washing tub 6 based on the amount of inertial rotation of the drive motor 11 that changes according to the amount of cloth in the washing tub 6. When the drive motor 11 connected to the power supply selectively conducts the triacs 11a and 11b by a control signal from the microcomputer 30, the conducting side coil 11c (11d) is used as a main coil and the other one is set to 1
1d (11c) is rotated by a rotating magnetic field formed as a phase-advancing coil with a capacitor 11e interposed. This rotation is transmitted to the stirring blade 8 in the washing tub 6 and transmitted to the clothes. The resistance acting on the stirring blade 8 changes depending on the amount of clothes in the washing tub 6, and this degree appears in the inertial rotation of the drive motor 11, affects the counter electromotive force generated in the coils 11c and 11d, and the terminal of the capacitor 11e. Appears as a change in voltage.

The photo-triac coupler 40a of the cloth amount sensor 40 is connected to the voltage dividing resistor 40 from the capacitor 11e.
It operates at a voltage given through b and 40c, cooperates with the voltage dividing resistor 40d to give a rectangular wave detection signal to the inverter 40e, and transmits its inverted signal to the microcomputer 30.

A method of detecting the amount of clothes in the washing tub 6 by the cloth amount sensor 40 will be described with reference to FIG.
The gate signal G1 that makes the triac 11a conductive is given to the gate signal G1 while the drive motor 11 is being fed (driven).
When is turned off, the drive motor 11 enters an inertial rotation state.
A voltage is induced in the coils 11c and 11d by this inertial rotation, and the terminal voltage Ve of the capacitor 11e is gradually attenuated. Photo-triac coupler 40a and inverter 4
0e waveform-shapes this terminal voltage Ve to generate a detection pulse signal Pd.

The microcomputer 30 detects the amount of cloth by referring to the detection pulse signal Pd. Since the pulse interval Δt of the detection pulse signal Pd changes depending on the amount of cloth, the cloth amount is detected by measuring this pulse interval Δt. That is, as described above, the pulse interval Δt changes according to the magnitude of the resistance due to the amount of cloth that acts on the stirring blade 8.

FIG. 6 shows the load (k) acting on the stirring blade 8.
g) and the pulse interval Δt (mse between the detection pulse signal Pd
c. ) Shows the experimental results of measuring the relationship.

In the cloth amount detecting process, the microcomputer 30 detects the pulse interval Δt of the detection pulse signal Pd.
Is acquired and the amount of cloth in the washing tub 6 is determined to set the washing or rinsing water level. Actually, reference values such as “low level”, “middle level”, “high level” prepared in advance are selected and set. Then, the microcomputer 30 inputs the detection signal from the water level sensor 20 and compares the water level in the outer tub 3 and the washing tub 6 with the set water level, and controls the opening and closing of the water supply valve 16 or the drain valve 18.

Next, with reference to FIG. 7, the control of the basic separate washing and washing process executed by the microcomputer 30 in the fully automatic washing machine according to the present invention will be described. The steps common to the washing step described with reference to FIG.
The same reference numerals are given and detailed description thereof is omitted.

The "water supply" step PS1 is a water supply control for prewash, in which clothes with a lot of dirt are put into the washing tub 6, the power switch 36 is turned on, and the program selection switch 3
The process starts when the separate washing and washing course selection signal is input from 8 and the start signal is input from the start / stop switch 39.

Next, the "prewash" step PS2 is controlled. This "pre-washing" step PS2 is controlled so as to wash clothes that are heavily soiled to such an extent that the dirt is lightly removed. This is a shorter time than the wash time set in the "wash" step in a normal standard laundry course.

Next, the "drain" step PS3 for draining the wash water for pre-washing is controlled, and the "dewatering" step PS4 for draining the wash water for pre-washing is controlled, and the "rest" step PS
5 is controlled. This "pause" step PS5 is continued until an operation for shifting to the main wash is performed from the outside.

When a signal from the lid switch 37 detects an operation of opening and closing the lid 9 to put clothes with little dirt added in the main washing into the washing tub 6, or when a signal from the start switch is input, The "water supply" step S1 is controlled, and then the "main washing" step S2 is performed. This "main washing" step S2 is a step of washing the pre-washed clothes and the added less soiled clothes together, and is longer than the washing time set in the "washing" step in the normal standard washing course. Set to a short time.

After the "main washing" step S2 is completed,
Similar to the washing course described above, "drainage" step S3, "water supply" step S9, "rinsing" step S10, "drainage" step S
11 and the final "dehydration" step S12 are controlled. The number of "drainage" and "dehydration" steps of wash / rinse water is set as required.

By carrying out such a separate washing and washing step, clothes with a large amount of dirt and clothes with a small amount of dirt can be uniformly washed economically in a short time in a series of washing steps of one washing course. In addition, since the washing water in the "pre-wash" step that washed heavily soiled clothes is drained and dehydrated,
There is also no inconvenience of contaminating clothes that are lightly soiled in the "main washing" step.

FIG. 8 shows a separate washing process in which the above-mentioned separate washing process according to the present invention is further improved. In the separate washing process, the "dehydration" process P of pre-washing
If the "pause" step PS5 after S4 is continued for a long time, wrinkles occur on the clothes. In this improved washing process, "water supply / stirring" is performed to perform water supply and stirring between "dehydration" process PS4 and "rest" process PS5 in order to prevent the occurrence of wrinkles.
Process PS6 is added. The other steps are the same as the separate washing and washing step.

The "water supply / stirring" step PS6 is controlled so as to be executed immediately after the "dehydration" step PS4 is completed or after a lapse of a predetermined time. The amount of water supplied in this step is the same as that of the "water supply" performed for the "prewash" step PS2. Then, after performing a predetermined water supply, it is left as it is until the next "pause" step PS5 is resolved, or a short stirring time is set to rotate the stirring blade 8 in order to eliminate the state of being dehydrated. After performing the control so that the “pause” step PS5 is performed.

Also, the "dehydration" step PS4 for prewashing
Is completed, or after the "water supply / stirring" step PS6 is completed, control is performed to notify the state visually or visually. This notification is continued until the lid 9 is opened to add clothes to be washed in the main wash.

Next, the setting and display of the washing condition based on the detection of the amount of laundry in this separate washing course will be described. The cloth amount sensor 40 described above is used for this cloth amount detection. In the laundry amount detection process in the separate washing process shown in FIGS. 7 and 8, first, the “pre-wash” process PS is performed.
2 is performed in the initial stage, and the detection result is displayed as the washing condition on the display panel unit 50, as shown in FIGS. 9 and 10.

The display panel section 50 shown in FIG. 9 is provided with a water quantity display section 51, a washing water level display section 52 and a detergent quantity display section 53, each of which displays a prescribed value as an initial value, and then the cloth quantity detection result is displayed. The amount of water and the washing water level of the washing condition set accordingly are displayed. The amount of detergent is a specified amount corresponding to this amount of water, and the value shown is an amount under standard washing conditions in a normal washing course.

The display panel section 50 shown in FIG. 10 shows the values corresponding to the washing conditions in the "prewash" step PS2 in the separate washing washing course by the fully automatic washing machine according to the present invention. The water amount and the washing water level are the values of the washing condition set based on the result of the laundry amount detection similarly to the above, but the detergent amount in this divided washing course is less than the specified amount for this water amount. This is a device for economically executing a "prewash" step for prewashing heavily soiled clothes.

The device for reducing the amount of detergent from the amount in the normal washing course is also applied to the setting of the amount of detergent in the "main washing" step S2. Since the clothes with a large amount of dirt have been prewashed and thus have a small amount of dirt, in the "main washing" step S2, the required cleaning action can be obtained with a small amount of detergent. Moreover, in the pre-washing, the "rinsing" step is omitted, and the water containing the detergent is soaked into the pre-washed clothes. Therefore, the surfactant acts on the dirt even in the "pause" step PS5. This enhances the cleaning effect in the "main washing" step S2. Further, since the laundry added for the main washing is clothes with little dirt, a lot of detergent is not required to wash the clothes.

Next, the cloth amount detection processing and the setting of the washing conditions in the "main washing" step S2 will be described. At the beginning of the "main washing" step S2, the wet clothes that have been prewashed and dehydrated and the added dry clothes coexist. Since the damp clothes are heavy and located at the bottom of the washing tub 6 and the dry clothes are light and located above them, a highly accurate detection result cannot be obtained even if the cloth amount detection process is performed in that state. For this reason, when the "main washing" step S2 is started, water is supplied up to the washing water level of the washing condition set in the "prewashing" step PS2, and the added clothes with less dirt are also in a compress state. After that, the cloth amount detection process is performed.

The cloth amount detecting process and the setting of the washing water level in the "main washing" step S2 will be described with reference to FIG. When the control process 111 for the "main washing" step S2 is entered, a water supply process 112 is performed. This water supply is performed while the water level is detected in the process 113 until the wash water level rises to the water level H1 set in the washing condition in the "prewash" step PS2. Processing 114 when the washing water level rises to the set water level H1
Then, the cloth amount detection process is performed. The process 115 is a process of determining whether the wash water level to be set is equal to or lower than the wash water level at the time of pre-washing based on the detected amount of cloth, and if the wash water level to be set is equal to or lower than the wash water level at the time of pre-washing. The process moves to 116. In this process 116, the wash water level is set to the water level at the time of pre-washing, which has already been supplied with water, and the routine proceeds to the next control process 117.

When the wash water level to be set is higher than the wash water level at the time of pre-washing, the process proceeds to step 118, and the wash water level is set based on the amount of cloth detected by the detection process. Then, after a makeup water control process for supplying water to the washing water level is performed in process 119, the process proceeds to process 117.

In this way, the laundry amount detection information in the pre-wash is stored in order to carry out the laundry amount detection process in the main washing to set the washing condition, so that the washing condition in the main washing can be pre-washed. The laundry conditions can be set from a comprehensive point of view.

In setting the washing conditions, it is desirable to consider the quality of the laundry. The control process executed by the microcomputer 30 for detecting the cloth quality will be described with reference to FIGS. 12 and 13. This control process is actually performed in parallel with the cloth amount detection process. In the prewash of the separate washing course, as shown in FIG. 12, when the control process 131 for the "prewash" process PS2 is entered, the water supply process 13 is performed.
Do 2. This water supply is performed while detecting the water level in process 133 until the water level rises to the specified value of the low water level. When the water level rises to this specified value, the process proceeds to step 134, and the first cloth amount detection process is performed. Then, in step 135, the washing water level is set based on the detected cloth amount, and in steps 136 and 137, water supply control up to this set water level is performed. When the water is supplied up to the set water level, the process proceeds to step 138 and the second cloth amount detection process is performed. In the process 139, the first
The cloth quality is estimated from the difference between the detection information obtained in the second cloth quantity detection processing 134 and the detection information obtained in the second cloth quantity detection processing 138, and the washing condition is set in consideration of this cloth quality, and then Then, the processing 140 is started. A cloth quality detection method based on such two pieces of cloth amount detection information is already known.

In the main washing, as shown in FIG.
When the control process 111 for the "main washing" step S2 is entered, a water supply process 112 is performed. This water supply is performed while the water level is detected in the process 113 until the wash water level rises to the water level H1 set in the washing condition in the "prewash" step PS2. When the washing water level rises to the set water level H1, the process proceeds to step 114 and the cloth amount detection process is performed. The process 115 is a process of determining whether the wash water level to be set based on the detected amount of cloth is less than or equal to the wash water level at the time of pre-washing. The process up to this point is the same as the cloth amount detection process described above.

If the wash water level to be set is equal to or lower than the wash water level at the time of pre-washing, the process proceeds to step 120. In this process 120,
The second cloth amount detection process is performed at the water level at the time of pre-washing that has already been supplied. Then, in the process 121, the cloth quality is estimated from the difference between the two cloth amount detection information, but since the first cloth amount detecting process 114 and the second cloth amount detecting process 120 are performed at the same water level, this detected information It is difficult to estimate the cloth quality from the difference between the two, and therefore, the cloth quality is estimated by referring to the stored detection information in the cloth amount detection process 138 for the pre-wash, and the washing condition with this cloth quality taken into consideration. Is set and the process moves to the next control process 125.

When the wash water level to be set is higher than the wash water level at the time of pre-washing, the process proceeds to step 119, and the makeup water control process for supplying water to the wash water level to be set based on the amount of cloth detected by the detection process is performed. After that, the process proceeds to the process 123 and the second cloth amount detection process is performed. Then, in the process 124,
The cloth quality is estimated from the difference between the detection information obtained in the first cloth quantity detection process 114 and the detection information obtained in the second cloth quantity detection process 123, and the washing condition is set in consideration of this cloth quality. Then, the processing shifts to the next processing 125.

Next, the relationship between the pulse interval of the detection pulse signal, which is the detection information obtained in each cloth amount detection process, and the cloth amount will be described with reference to the experimental results shown in FIGS.
In each figure, the horizontal axis represents the cloth amount and the vertical axis represents the detection pulse interval.

FIG. 14 shows the relationship between the amount of cloth and the detection pulse interval when the laundry is wet clothes. From the detection pulse interval Amsec, it is determined that the amount of cloth is small, and the variation amount W1 is relatively small, about 200 to 300 g. FIG. 15 shows the relationship between the amount of cloth and the detection pulse interval when the laundry is dry clothes. Since dry clothes are light, it is determined that the amount of cloth is smaller in the case of the same detection pulse interval Amsec than in the case of wet clothes. The variation W2 is relatively large and is about 500 to 800 g.

In the cloth amount detection in the main washing in the separate washing course, the pre-washed wet clothes and the added dry clothes are mixed. Therefore, the cloth amount detection characteristic as it is is a combination of the detection characteristic shown in FIG. 14 and the detection characteristic shown in FIG. FIG. 16 shows the relationship between the amount of cloth and the detection pulse interval in the case of a laundry in which wet clothes and dry clothes are mixed. The variation W3 is large in the same detection pulse interval Amsec as described above, and the variation amount reaches 1500 g, which cannot contribute to preferable washing condition setting.

In the control device according to the present invention, in order to avoid the occurrence of such an inconvenience in detecting the amount of cloth in the main washing in the separate washing course, as described with reference to FIG. 11, The amount of cloth is detected after the additional dry clothes are made wet by supplying water to the washing water level in the prewash. FIG. 17 shows the relationship between the cloth amount thus detected and the detection pulse interval. When the detection pulse interval Amsec is compared, the variation amount W4 is small, and the cloth amount can be detected with an error of 200 to 300 g.

Next, the detergency which is the basis of washing will be described. FIG. 18 shows the washing power in a standard fully automatic washing course of a conventional fully automatic washing machine that consistently continuously performs from washing to rinsing and dehydration and the separate washing washing course in the fully automatic washing machine according to the present invention. It shows the cleaning power at.

A large difference (unevenness) in washing power occurs in the washing by the fully automatic washing course in the conventional fully automatic washing machine. This is because clothes with a lot of dirt such as a Y-shirt and the like having a lot of collar collars and clothes with a little dirt such as underwear are collectively washed. Therefore, when the clothes with much dirt and the clothes with little dirt are put together and washed in the fully automatic washing course in the conventional fully automatic washing machine, uneven washing occurs.

On the other hand, in the separate washing washing course of the fully automatic washing machine according to the present invention, the clothes with a large amount of dirt are prewashed as described with reference to FIGS. The difference in cleaning power has been reduced by adding clothes with little dirt to the main wash. Therefore, clothes with much dirt and clothes with little dirt can be washed evenly. It was also confirmed that the overall cleaning power was improved by about 10 to 20%.

In this embodiment, the steps of prewashing are "water supply"-"prewash"-"drainage"-"dehydration" or "water supply"-"prewash"-"drainage"-"dehydration"-"water supply". Alternatively, each process of "water supply"-"pre-wash"-"drainage"-"dewatering"-"water supply / stirring" is performed, but the dewatering power in the dewatering process is determined by the standard amount The effect of preventing wrinkle formation can be enhanced by making it weaker or by supplying water after dehydration to contain a large amount of water in the clothes. To reduce dehydration,
There are a method of lowering the rotation speed of the washing tub 6 in the "dewatering" step (the power supply to the drive motor 11 may be turned on / off) and a method of shortening the dehydration time. The method of lowering the rotation method can also suppress the foaming phenomenon during dehydration.

Further, the pre-washing step can be constituted by the steps of "water supply"-"pre-washing"-"drainage", in which case no additional measures for preventing wrinkles are required.

FIG. 19 shows various washing courses equipped in the controller of the fully automatic washing machine according to the present invention. The pre-washing course 201 is composed of the steps of "water supply"-"pre-washing"-"drainage"-"dehydration"-"water supply", as described above.
It is independent as one course. For fully automatic washing machines,
It is equipped with a fully automatic course that automatically advances from "water supply" to "washing", "rinsing", and "dehydration" to perform washing. There are several courses available that can be selected according to the degree of dirt. For example, a standard course 202 suitable for washing general clothes (cotton, etc.), a strong rouge course 203 and a woolen course 203 with a strong wash water flow and a long washing time suitable for washing extremely dirty clothes. There is a wool course 204 suitable for washing etc., and a pickling and picking course 205 for pickling and then washing, and each of these washing courses is added by washing manually after the prewashing course 201.

For example, when a washing course in which the pre-washing course 201 and the wool course 204 are combined is set, the washing water flow in the pre-washing course 201 is set to be the same as the washing water flow set in the wool course in the fully automatic course. . When a washing course in which the pre-washing course 201 and the doronko course 203 are combined is set, the washing water flow in the pre-washing course 201 is set according to the strong water flow of the doronko course 203 in the fully automatic course. That is, the wash water flow in the pre-washing course 201 is set to a value suitable for the type and dirt of the clothes to be washed according to the washing in the fully automatic course to be combined, so that the efficient pre-washing can be performed.

The conventional fully automatic washing machine can set a course only for the "washing" step and a course only for the "washing" and "dewatering" steps. It is possible to perform a separate washing method in which washing is performed and then clothes with less dirt are added and the clothes are washed in the fully automatic course.However, in the fully automatic course, the detection information and washing conditions in the prewash are lost and inherited. Is not done,
From a comprehensive point of view, it is impossible to set proper washing conditions, and it is not possible to obtain favorable washing results. Moreover, in the cloth amount detection in the fully automatic course, since the cloth amount detection processing is performed in the same way as the newly added dry light clothes, which are heavy clothes that have been prewashed and moistened, the cloth amount detection process is more likely to occur than the actual cloth amount. Therefore, it is uneconomical to detect and therefore to raise the washing water level and consume a large amount of detergent.

However, in order to eliminate such inconvenience, the controller of the fully automatic washing machine according to the present invention comprehensively refers to the detection information and the washing conditions as a series of pre-washing and main washing. It is configured to set washing conditions. That is, it is configured to store the amount-of-clothes detection information, the quality-of-clothes detection information, and the set water level of the pre-washing, which are stored in the pre-washing and inherited and used in the main washing.
For example, laundry control based on the laundry conditions set by performing the laundry amount detection process for clothes that have been dried in the previous wash can perform proper washing, but clothes that have become damp and heavy after this previous wash can be washed in the main wash. It has a great adverse effect on the detection of the amount of dry clothes thrown in. For example, the amount of cloth of 2.0 kg obtained by the cloth amount detection process in the pre-washing is about 4.0 kg even if it is dehydrated after the pre-washing, about 4.0 kg for cotton underwear, and the like for synthetic fibers with a low water content. The weight of 2.5 kg and bath towel having a high water content is about 6.0 kg, which makes it difficult to accurately detect the amount of mixed clothes by adding dry clothes. Therefore, by storing the information of the dried clothes washed in the prewash, it is possible to utilize the cloth amount detection processing in the main washing to accurately detect the cloth amount.

Regarding the setting of the amount of detergent, if the amount used in the pre-wash is stored, the amount of detergent is set to a small amount and displayed on the display panel section 50 by referring to this information during the main washing. It is possible to prevent wasteful use of detergent.

A comprehensive control flow chart of such a separate washing and washing course is shown in FIGS.
FIG. 20 is a control flowchart for prewashing, and FIG. 21 is a control flowchart for main washing.

[0070]

As described above, according to the present invention, since the pause provided between the pre-wash and the main wash passes with the water being supplied, the occurrence of wrinkles in the laundry can be prevented. In addition, since the laundry amount detection information and / or the washing conditions of the pre-wash and the main wash are referred to in a linked manner, it is possible to set a suitable washing condition comprehensively. Different clothes can be easily and evenly and economically separated and washed.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a fully automatic washing machine according to the present invention.

FIG. 2 is an electric circuit diagram centering on a microcomputer provided in a control unit in the control device for a fully automatic washing machine according to the present invention.

FIG. 3 is a standard washing process diagram controlled by a microcomputer in the fully automatic washing machine according to the present invention.

FIG. 4 is an electric circuit diagram of a cloth amount sensor of a controller for a fully automatic washing machine according to the present invention.

FIG. 5 is an explanatory diagram of a cloth amount detecting operation of the cloth amount sensor of the controller for the fully automatic washing machine according to the present invention.

FIG. 6 is a characteristic diagram showing the relationship between the load amount acting on the stirring blade and the detection pulse interval output by the cloth amount sensor in the fully automatic washing machine of the present invention.

FIG. 7 is a diagram of a basic separate washing and washing process controlled by a microcomputer in the control device of the fully automatic washing machine according to the present invention.

FIG. 8 is a further improved washing process of separate washing controlled by a microcomputer in the controller of the fully automatic washing machine according to the present invention.

FIG. 9 is a view showing a washing condition displayed on a display panel section in the controller of the fully automatic washing machine according to the present invention.

FIG. 10 is a view showing a washing condition displayed on a display panel section in the controller of the fully automatic washing machine according to the present invention.

FIG. 11 is a flowchart of a cloth amount detection process and a wash water level setting process in a main wash executed by the microcomputer in the control device of the fully automatic washing machine according to the present invention.

FIG. 12 is a flow chart of a cloth quality detection process and a washing condition setting process in a pre-wash executed by a microcomputer in the controller of the fully automatic washing machine according to the present invention.

FIG. 13 is a flow chart of a cloth quality detection process and a washing condition setting process in a main washing executed by a microcomputer in the controller of the fully automatic washing machine according to the present invention.

FIG. 14 shows the relationship between the detection pulse interval output from the cloth amount sensor and the cloth amount of wet clothes in the controller for a fully automatic washing machine according to the present invention.

FIG. 15 shows the relationship between the detection pulse interval output by the cloth amount sensor and the cloth amount of dry clothes in the controller of the fully automatic washing machine according to the present invention.

FIG. 16 shows a relationship between a detection pulse interval output from a cloth amount sensor and a cloth amount when detecting a laundry in which wet clothes and dry clothes are mixed.

FIG. 17 shows the relationship between the cloth amount and the detection pulse interval output by the cloth amount sensor in the controller of the fully automatic washing machine according to the present invention when the cloth amount is detected in the main washing.

FIG. 18: Detergency in a standard fully automatic washing course of a conventional fully automatic washing machine that consistently continuously performs from washing to rinsing and dehydration and a separate washing laundry course in the fully automatic washing machine according to the present invention It shows the cleaning power at.

FIG. 19 is a block diagram showing various washing courses installed in the controller of the fully automatic washing machine according to the present invention.

FIG. 20 is a comprehensive control flowchart of pre-washing of a separate washing course executed by the controller of the fully automatic washing machine according to the present invention.

FIG. 21 is an overall control flowchart of main washing of a separate washing course executed by the controller of the fully automatic washing machine according to the present invention.

[Explanation of symbols]

 6 Washing tub 8 Stirring blade 11 Drive motor 20 Water level sensor 22 Control unit 30 Microcomputer 40 Cloth amount sensor

Claims (12)

[Claims] 1. A fully automatic washing machine for performing a pre-wash that automatically executes a washing step and a dehydrating step, a pause, and a main washing that automatically executes a washing step, a rinsing step, and a dehydrating step in time series. A control device for a fully automatic washing machine, comprising a water supply means for supplying a predetermined amount of water after the dehydration step of the prewash. 2. The control device for a fully automatic washing machine according to claim 1, wherein the pause is continued until a lid covering the laundry inlet is opened and closed. 3. The fully automatic washing machine according to claim 1, further comprising a linking unit for linking the cloth amount detection information of the prewash and / or the prewash washing condition with the washing condition setting of the main wash. Control device. 4. A fully automatic washing machine for performing time-sequential pre-washing for automatically executing a washing step and dehydration step, pause, and main washing for automatically executing a washing step, a rinsing step, and a dehydration step. The control device is provided with a water supply means for supplying a predetermined amount of water after the dehydration step of the prewash, and a stirring means for temporarily stirring the laundry in a water supply state by the water supply means. Control device. 5. The control device for a fully automatic washing machine according to claim 4, wherein the pause is continued until a lid covering the laundry inlet is opened and closed. 6. The fully automatic washing machine according to claim 4, further comprising a linking unit for linking the cloth amount detection information of the prewash and / or the prewash washing condition with the washing condition setting of the main wash. Control device. 7. A controller for a fully automatic washing machine, which performs pre-washing for automatically executing a washing step and dehydration step and main washing for automatically executing a washing step, a rinsing step, and a dehydration step in time series. A means for storing the cloth amount detection information in the prewash and / or the prewash washing condition, and the washing condition in the main wash, the cloth amount detection information in the main wash, and the stored cloth amount in the prewash A control device for a fully-automatic washing machine, characterized in that main washing / washing condition setting means for setting with reference to detection information and / or washing conditions is provided. 8. A fully automatic time-sequential pre-wash that automatically executes a washing step and a dehydration step and one of a plurality of types of main washing that automatically executes a washing step, a rinsing step, and a dehydration step. A control device for a fully automatic washing machine, characterized in that the control device for a washing machine further comprises a pre-washing condition setting means for setting the washing condition for the pre-washing with reference to a selected type of main washing. 9. A fully automatic washing machine for performing time-sequential pre-washing that automatically executes a washing step and a draining step, a pause, and a main washing that automatically executes a washing step, a rinsing step, and a dehydrating step. A control device for a fully automatic washing machine, comprising a water supply means for performing a predetermined water supply after the drainage step of the prewash. 10. A fully automatic washing machine for performing time-sequential pre-washing that automatically executes a washing step and draining step, pause, and main washing that automatically executes a washing step, a rinsing step, and a dehydrating step. The control device is provided with a water supply means for supplying a predetermined amount of water after the drainage step of the prewash, and a stirring means for temporarily stirring the laundry in a water supply state by the water supply means. Control device. 11. A controller for a fully automatic washing machine, which performs a pre-wash that automatically executes a washing step and a draining step and a main washing that automatically executes a washing step, a rinsing step and a dehydrating step in a time series. A means for storing the cloth amount detection information in the prewash and / or the prewash washing condition, and the washing condition in the main wash, the cloth amount detection information in the main wash, and the stored cloth amount in the prewash A control device for a fully-automatic washing machine, characterized in that main washing / washing condition setting means for setting with reference to detection information and / or washing conditions is provided. 12. A fully automatic time-sequential pre-wash that automatically executes a washing step and a draining step and one of a plurality of types of main washing that automatically executes a washing step, a rinsing step, and a dehydrating step. A control device for a fully automatic washing machine, comprising: a control device for a washing machine, comprising a pre-washing condition setting means for setting a washing condition for the pre-washing with reference to a selected type of main washing.