KR900008290B1 - washer - Google Patents

Abstract

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Description

washer

1 is a structural diagram showing an example of a washing machine in which the present invention is implemented.

2 is a diagram showing an example of an operation panel of the washing machine of the present embodiment.

3 is a circuit diagram showing an example of the battery circuit of this embodiment.

4 is a timing diagram showing each cycle formed during a washing process for explaining the operation of this embodiment.

5A is a timing diagram for explaining the main cycle or the first cycle.

5b is a tie diagram for explaining an auxiliary cycle or a second cycle.

6A to 6B are timing diagrams for explaining precipitation, standard flow, and weak flow in the main cycle.

7A to 7D are flowcharts for explaining the operation or operation of this embodiment.

8A-C are flow charts showing subroutines of "laundry".

9 is a flow chart showing a subroutine of "multiple".

10 is a flow chart showing a subroutine of "dehydration".

11 is a flow chart showing a subroutine of "rinse".

* Explanation of symbols for main parts of the drawings

10: washing machine 12: frame

14: outer tank 16: drainage

18: drain valve 20: drain hose

22: inner tank 24: rotating shaft

26: dehydration hole 28: rotation axis

30: pulsator 32: motor

32a, 32b: armature coil 34: output shaft

36: bearing case 38: input shaft

40: air trap 42: hose

44: pressure sensor 46: temperature sensor

46α: temperature detector 48: water supply pipe

50: water supply valve 52: operation panel

54: start switch 54a-54b: light emitting diode

56: start switch 56α: light emitting diode

58: stop switch 60, 62, 64, 66, 68: switch

60a-60c: Light Emitting Diode 70a-70c: Light Emitting Diode

72: microcomputer 74: timer

76: display character area 78: resistance network

80a-80b: Comparator 82: Buzzer

84a-84b: Switching Transistor 86a, 86b: Bidirectional Thyristor

88: AC power supply 90: initial cycle

92: main cycle 94: auxiliary cycle

The present invention relates to a washing machine, and more particularly, to a washing machine that most appropriately controls the flow of water formed by a pulsater or agitator of the washing machine.

As a conventional example, in US Pat. No. 4,494,390, which is assigned to the assignee, a washing machine for improving the pulsator of a washing machine and forming water flow using the improved pulsator is proposed.

In this prior art, the shape of the pulsator is uniquely designed to generate a water stream suitable for it, so that clothing is not entangled during washing.

Therefore, damage to clothes for "entanglement" is small, and at the same time, the damage of clothes is further suppressed by the low rotation speed of the pulsator.

However, the washing machine of this teacher technique is somewhat inferior in terms of cleaning power.

That is, although the "rotation of the cloth" is suppressed because the rotation speed of the pulsator is low, there is a problem such that the clothes are gradually purified in the washing tank during the washing process and the washing power is lowered.

As such, the main object of the present invention is to provide a new washing machine which forms an improved water flow.

Another object is to provide a washing machine in which the "entanglement of the cloth" can be suppressed and the cleaning power is enhanced.

The present invention will be described briefly, a washing tank and a pulsator rotatably installed in the washing tank, driving means for driving the pulsator in forward or reverse rotation, controlling the driving means, and controlling electrostatic and reverse of the pulsator. A first means for forming a first cycle comprising a set of first repeating units included therein and a second repeating unit controlling the driving means and intermittently interrupting and reversing the pulsator during the first cycle; And a second means for forming a second cycle consisting of a set of and shorter than the first cycle.

In the washing machine configured as described above, when the washing process is started, a main cycle or a first cycle is formed.

In the first cycle, the pulsator successively repeats the first repeating unit including power failure, rest and reversal.

While the first cycle is being executed, a relatively short auxiliary cycle or a second cycle is formed intermittently.

The second cycle likewise includes repetition of the second repeating unit resulting from the pulsator's blackout, pause and reversal.

By the execution of the second cycle, the clothing which is likely to be stagnated in the washing tank is released and its rotation is promoted.

Therefore, according to the present invention, the "entanglement of the cloth" is suppressed and the rotation of the garment is facilitated, whereby the movement of the garment becomes active, and thus it is possible to enhance the cleaning power.

In a preferred embodiment of the present invention, the second repetition word constituting the second cycle is different from the first repetition unit constituting the first cycle.

Specifically, the second repeating unit has a longer time of power failure or inversion than that of the first repeating unit, or a stop time inserted between them is shorter than that of the first repeating unit.

Therefore, the water flow formed while the second cycle is being executed is stronger than the water flow formed while the first cycle is being executed.

Therefore, the second cycle effectively acts on suppression of "entanglement of the cloth".

In another preferred embodiment of the present invention, the outage time and the inversion time of each adjacent one of the first repeating units constituting the first cycle are different from each other.

As a result, the washed clothes can be efficiently staggered up and down in the washing tank. Therefore, uneven washing does not occur, and improvement of washing power can be expected.

In another preferred embodiment of the present invention, a temperature detecting means for detecting the water temperature of the water contained in the washing tank is provided.

The number of insertions of the second cycle intermittently inserted in the first cycle is changed in accordance with the temperature detected by this temperature detecting means.

Specifically, as the water temperature is lowered, the number of times of inserting the second cycle increases.

Therefore, according to this embodiment, even when the water temperature is low, sufficient washing can be achieved.

In another preferred embodiment of the present invention, an initial cycle or a third cycle is formed immediately after the start of the washing process is commanded.

This third cycle is mainly used to dissolve the detergent introduced prior to the start of the washing process.

And, more preferably, the lower the water temperature, the longer the duration of the third cycle.

In another embodiment of the present invention, the washing tank itself is rotatably installed and used in both the washing process and the dehydration process.

Then, the temperature is detected by the temperature detecting means, and the rotation time of the washing tank is controlled in the dehydration step based on this temperature.

According to this preferred embodiment, when the temperature is low, the dehydration time is set longer, so that a constant dehydration state can be obtained regardless of the elevation of the temperature.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view for explaining the structure of one embodiment of the present invention.

The washing machine 10 includes a frame 12, on which the outer tub 14 is fixedly installed.

A drain hole 16 is formed at the bottom of the outer tub 14, and the drain hose 20 is connected to the drain hole 16 via a drain valve 18.

The tip of the drain hose 20 extends outward of the frame 12.

The inner tub 22 is rotatably supported by the rotating shaft 2 inside the outer tub 14.

A plurality of dehydration holes 26 are formed in the side wall and the bottom of the inner tank 22.

Therefore, the inner tank 22 communicates with the outer tank 14 through these dehydration holes 26.

The bottom of the inner tank 22 is provided with a pulsator 30 connected to the rotary shaft 28.

In the base 12, a motor 32 is provided below the outer tub 14, and the output shaft 34 of the motor 32 is an input shaft of the bearing case 36 via a transmission means such as a belt. Is connected to 38.

The bearing case 36 incorporates a clutch mechanism such as, for example, disclosed in U.S. Patent No. 3,267,703, and passes the rotation given to the input shaft 38 via an appropriate clutch and reducer to the two rotary shafts described above. Optional delivery to (24) and (28).

That is, the clutch mechanism (not shown) connects the rotary shaft 28 to the input shaft in order to rotate the pulsator 30 in the washing or rinsing (rinsing the laundry), and rotates the inner tank 22 in the dehydration step. The rotating shaft 24 is connected to the input shaft to make it.

An air trap 40 is formed on the lower side wall of the outer tub 14 to communicate with the gap between the outer tub 14 and the inner tub 22.

The air trap 40 is connected to the semiconductor pressure sensor 44 via a hose 42.

In the air trap 40, the air pressure therein changes with the level of the space | interval of the outer tank 14 and the inner tank 22, ie, the level of the water level in the inner tank 22 changes.

This pressure change is transmitted to the semiconductor pressure sensor 44 through the hose 42.

Therefore, the semiconductor pressure sensor 44 can detect a change in the water level in the washing tank as a change in pressure.

In the air trap 40, a temperature sensor 46 is provided at the bottom thereof, and the temperature sensor 46 includes, for example, a temperature detecting element such as a negative characteristic thermistor. This detector element is used to detect the temperature of the water when it is submerged, and to detect the temperature in the frame 12 when water is not accumulated in the washing tank.

The water supply pipe 48 is provided inside the upper part of the base 12, and the water supply pipe 48 is fitted in between.

The tip of the water supply pipe 48 is located above the washing tank, i.e., the upper hole of the inner tank 22.

Inside the upper part of the base 12, a control system described later with reference to FIG. 3 is housed.

In this embodiment, the control system is responsible for controlling all operations of the washing machine 10.

As shown in FIG. 2, an operation panel 52 is provided on an upper portion of the base 12 of the washing machine 10.

This operating panel 52 is provided with a start switch 54.

This start switch 54 is used to start either the "standard course" preset in the microcomputer 72 shown in FIG. 3 or the "selective course" in which each process time can be manually set.

The light emitting diode 54a lights up when the standard course is set, and the light emitting diode 54b lights up when the selection course is set.

The separate start switch 56 provided on the operation panel 52 sets a "speedy course" for finishing the whole process in a shorter time, for example, 23 minutes, and starts the speedy course. Is used.

When the speedicos is set, the light emitting diode 56a is turned on.

A stop switch 58 is used to pause the process started by this start switch 54 or 56.

In the selection course, in order to set the respective steps, the respective switches 60, 62, 64, 66 and 68 are used.

In detail, the switch 60 is used to set the time of "washing", and the washing time of "3 minutes", "6 minutes" or "12 minutes" can be set by operating the switch 60. .

When the washing time is set in this way, the corresponding light emitting diodes 60c, 60b or 60a light up.

The switch 62 is used to set the number of times of "rinse", and the number of times of rinsing once or twice can be set by operating this switch 62.

When the number of rinses is set in this manner, the corresponding light emitting diode 62b or 62a is turned on.

The switch 64 is used to set the "dehydration" time, and by operating the switch 64, the dehydration time of "1.5 minutes", "3 minutes" or "6 minutes" can be set.

When the dehydration time is set in this manner, the corresponding light emitting diodes 64c, 64b or 64a are turned on.

The switch 66 is used to set the strength of the water flow formed by the pulsator 30 (FIG. 1), and by operating the switch 66, the " strong ", " standard " or " weak " The strength of each stream can be set.

Next, a description will be given with reference to FIGS. 6A to 6C.

In precipitation, the idle time between the pulsator's blackout and reversal is relatively short, for example "0.2 seconds," and in the case of standard streams, such idle time is, for example, "0.5 seconds." In the case of weak water flow, the rest time is further set to, for example, "0.1 second".

The switch 68 is used to set up a "water rinse" to rinse while watering from the water supply pipe 46 (FIG. 1).

The operation panel 52 is also provided with three light emitting diodes 70a, 70b and 70c for temperature display.

These light emitting diodes 70a-70c are commonly used to display the water temperature of the water contained in the washing tank, or to display the temperature of the frame 12.

The light emitting diodes 70a-70c display water temperature or air temperature by rank, the light emitting diodes 70a display high temperature, the light emitting diodes 70b display medium temperature, and the light emitting diodes 70c display low temperature, respectively. do.

3 is a circuit diagram showing an example of the control system of this embodiment.

This control system includes, for example, a microcomputer 72 such as the integrated circuit " LM6035A "

Although not shown, the microcomputer 72 includes a ROM for accumulating control programs in advance, and a RAM for accumulating data necessary for control, as shown in a flow chart to be described later. .

In this RAM, a timer 74 which is responsible for the power failure time, the idle time, the inversion time, and other time control of the motor 32 is formed, and the display character area 76 is formed.

The switch 54-68 included in the operation panel 52 shown in FIG. 2 is connected to the input port of the microcomputer 72, and therefore, the microcomputer 72 is connected by these switches 54-68. You can enter the control conditions in).

The pressure sensor 44 shown in FIG. 1 is also connected to the input port of the microcomputer 72.

The other input port of the microcomputer 72 is supplied with a signal from the temperature sensor 46 (FIG. 1).

In detail, the temperature sensor 46 includes a temperature detecting element 46a such as, for example, a negative characteristic thermistor.

The resistance value of the temperature detecting element 46a changes in accordance with the temperature of the water contained in the washing tank or the temperature in the base 12.

The voltage determined by the resistance value of the temperature detecting element 46a and the reference voltage determined by the resistance network 78 are compared by the comparators 80a to 80d, respectively.

The outputs of the comparators 80a-80d are input to the microcomputer 72.

In other words, data is input into the input ports P1-P4 of the microcomputer 72 from the ion degree sensor 46 according to the water temperature or the temperature.

The microcomputer 72 determines the rank of water temperature or air temperature according to the following table based on the 4-bit data provided by these input ports P1-P4.

TABLE 1

The water temperature or air temperature measured in this way is displayed for each tank by the light emitting diodes 70 ^a- 70 ^c installed in the operation panel 52 as described above.

For example, when the judging temperature tank "X" or "A", if the light emitting diode (70 ^c) for displaying a "low temperature", "B", light emission to display the "Medium temperature" diode (70 ^b ) and is, "C" or "D" is, light emission for displaying the "high temperature" diode (70 ^a) is lit, respectively.

A buzzer 82 is connected to an appropriate output port of the microcomputer 72, which informs the operator or the user of the completion of a series of processes.

The microcomputer 72 also controls the drain valve 18 and the water supply valve 50.

Two bases of the switching transistors 84a and 84b for motor driving are connected to two output ports P10 and P11 of the microcomputer 72.

Each collector of these switching transistors 84a and 84b is commonly grounded, and each emitter is connected to a respective gate of the bidirectional thyristers 86a and 86b.

The bidirectional die Listers 86a and 86b rotate the pulsator 30 in the washing process, and the motor 32 for rotating the inner tank 22 like the pulsator 30 in the dehydration process. (Figure 1) is connected to an armature coil.

Therefore, the motor 32 is controlled to supply or supply time of the AC power supply 88 by the bidirectional thyristors 86a and 86b, thereby causing a power failure or a reverse or stop.

In detail, when the low level (LOW LEVEL) is output from the output port P10 of the microcomputer 72 and the high level (HIGH LEVEL) is output from the output port P11, the switching transistor 84A is turned on. (ON) ", and the switching transistor 84b is turned" OFF ".

Therefore, the bidirectional thyristor 86a is "ON", and the electric power from the AC power supply 88 is supplied to one armature coil 32a of the motor 32, and thus the motor ( 32 is rotated in the forward direction.

In this way, when stopping the motor 32 rotated in the forward direction, a high level may be output to the output port P10 of the microcomputer 72.

Then, like the switching transistor 84b, the switching transistor 84a is " off ", and thus the bidirectional die Lister 86a is also " off ", so that the armature coil 32a of the motor 32 is formed. The electric power from the AC power supply 88 is not supplied to either of 32 and 32b.

When the motor 32 in the stationary state is reversed, a high level is output to the output port P10 of the microcomputer 72 and a low level to the output port P11, unlike the case of power failure. .

Then, the switching transistor 84a is "off", and the switching transistor 84b is "on".

Therefore, the bidirectional die Lister 86a is " off " and the Bidirectional Die Lister 86b is " on ".

Therefore, electric power from the AC power supply 88 is supplied to the armature coil 32b on the other side of the motor 32 so that the motor 32 rotates in the reverse direction.

In this way, the microcomputer 72 can control the output (low level or high level) to the output ports P10 and P11, and the motor 32 can be stopped or reversed or stopped.

4 is a timing chart for explaining the washing step in this embodiment.

In FIG. 4, as an example, the case where the user sets the "washing" time of "12 minutes" by operating the switch 60 (FIG. 2) of the operation panel 52 is shown.

Prior to the detailed operation explanation, this FIG. 4 is referred and a washing process is demonstrated briefly.

When the washing process is started, first a cycle 90 of relatively short time, for example 20 seconds-40 seconds, is executed.

This initial cycle 90 is mainly formed to dissolve the detergent introduced into the inner tank 22 (FIG. 1).

Then, when the initial cycle ends, the main cycle (first cycle) 92 is started.

In this main cycle 92, for example, as shown in FIG. 5A, the pulsator 30 repeats the power failure and the inversion with the pause time TO interposed therebetween.

That is, one repeating unit is configured as a power failure, a pause, an inversion, and a pause of the pulsator 30.

In the main cycle 92, the power failure time of the pulsator for each repeating unit is T1, T2, T3... As shown in FIG. 5, the reverse time corresponding to the change is sequentially T5, T4, T3. Will be changed sequentially.

This operation is shown in FIGS. 6A-6C.

6A shows a case where "strong" is set by the switch 66 of the operation panel 52, FIG. 6B shows a case where "standard" is set, and FIG. 6C shows a case where "weak" is set. do.

In this embodiment, in the case of precipitation, one cycle of the main cycle is executed at, for example, 19.2 seconds, during which 0.7 seconds power failure → 0.2 seconds stop → 1.3 seconds reverse → 0.2 seconds stop → 0.8 seconds power stop → 0.2 seconds stop → 1.2 seconds reverse → → 0.8 second power failure → 0.2 second stop → 1.2 second reversal → 0.2 second stop → 0.7 second power interruption Repeating units of the pulsator 30 are repeatedly arranged with a certain stop time between different interruption times or reversal times. The main cycle 92 is formed.

In the case of the standard water flow shown in FIG. 6B, one cycle is executed at 23 seconds, for example, between 0.7 second power failure → 0.5 second stop → 1.2 second reverse → 0.5 second stop → 0.8 second power → 0.5 second stop. → 1.1 sec reverse → 0.5 sec stop → 0.9 sec blackout →. The pulsator 30 repeats the interruption or reversal to form the main cycle 92, such as a 0.8 second interruption, 0.5 second stop, 1.1 second reversal, 0.5 second stationary, and 0.7 second interruption. .

Then, the blackout time and the reverse time of the repeating unit adjacent to each other are controlled to be different from each other.

In the case of the weak water flow shown in the 6th book, one cycle is executed as, for example, 24 seconds, and in the meantime, 0.3 second power failure → 1 second stationary → 0.7 second stationary → 1 second stationary → 0.4 second power failure → 1 second stationary. → 0.6 second reversal → 1 second stationary → 0.5 second blackout →. The pulsator 30 is controlled, such as 0.4 seconds power failure, 1 second stop, 0.6 second reverse, 1 second stop, and 0.3 second power failure to form the main cycle 92.

Precipitation is used, for example, when washing thick clothing, weak water is washing thin clothing, and standard water is used when washing other ordinary clothing.

In this way, while the clothing in the inner tank 22 (FIG. 1) is stagnant while the main cycle 92 is being executed, a relatively short auxiliary cycle (second cycle) 94 that can cause a strong water flow than this main cycle 94 ) Intermittently.

By the auxiliary cycle 94 inserted in this way, stagnant clothing can be properly untied.

As shown in FIG. 5B, the auxiliary cycle 94 inserted as described above has the same interruption and reversal time as the pulsator 30 (T10 = T11), which is shorter than the idle time TO of the main cycle TO '(= This power failure and reversal are repeated with 0.1 seconds).

That is, in the auxiliary cycle 94, a second repeating unit is repeated, for example, 1.0 second power failure → 0.1 second stop → 1.0 second reverse → 0.1 second stationary.

When the main cycle 92 is being executed, the time remaining by inserting the appropriate number of auxiliary cycles 94 becomes small. For example, when the main cycle 92 becomes less than 20 seconds, the end cycle is executed.

This end cycle includes a very short set of repeating units having a power failure and reversal time of about 0.2 seconds to 0.4 seconds and a rest time of 0.2 seconds, and is executed for about 10 seconds.

By executing this end cycle, the whole inner tank 22 is fluctuated, the clothing in it is distributed evenly in a washing tank, and it can suppress that the load biases to a washing tank to one side at the next dehydration process performed.

7A to 7D, the operation or operation of this embodiment will be described.

When the start switch 54 included in the operation panel 52 (FIG. 2) is operated, data for the "standard course" in the first step S1 is stored in the ROM of the microcomputer 72 (not shown). Is loaded into RAM or Register.

That is, in the standard course, the washing time "12 minutes", "the number of rinsing times", two times, and "dehydration time" 6 minutes are set, respectively.

After that, in step S2, the light emitting diode 54a for indicating that the standard course is executed is turned on.

When the other start switch 56 is pressed, data for executing the speedi course is loaded in the first step S3.

That is, in the speedi course, the washing time is set to "6 minutes", the number of rinsing times to "twice", and the dehydration time to "3 minutes", respectively.

In the next step S4, for speedy course, the microcomputer 72 sets the intensity of the water flow in the washing step to "precipitation" (Fig. 6A).

In step S5, the light emitting diode 56a for indicating that speedicos is executed is turned on.

After passing through the previous step S2 or S5, the microcomputer 72 inputs the temperature data from the temperature sensor 46 from the input port S1-4 in step S6.

At this time, since no water is contained in the inner tank 22, the temperature data is data of temperature.

In the next step S7, it is determined whether a predetermined amount of water is contained in the inner tank 22 by the input from the pressure sensor 44.

If "Yes" is detected in this step S7, the microcomputer 72 determines the rank of the temperature, for example "medium temperature", based on the temperature data input as step S6 first in step S8. Set.

At the same time, in step S9, the corresponding light emitting diode is turned on to display the time and the number of times such as "washing", "rinse", "dehydration", and the like, the intensity of "water flow", and the like.

In the next step S10, the microcomputer 72 determines whether any of the light emitting diodes 60a-60c associated with the switch 60 is lit.

If any of the light emitting diodes 60a to 60c is turned on, it is determined in the next step S11 or step S12 whether the standard course is set or the speedi course is set.

When the standard course is set, the microcomputer 72 sets "12 minutes" to the timer 74 as the washing time in step S13.

In the same manner, when the speedicos is set, the microcomputer 72 sets "6 minutes" to the timer 74 as the washing time in step S14.

In the case of neither standard course nor speedy course, the selection course is set, and the microcomputer 72 is manually set in step S15 using the switch 60. The timer 74 sets one of washing time "3 minutes", "6 minutes" or "12 minutes".

After the washing time is set in this way, the microcomputer 72 proceeds to a subroutine of "laundry".

Referring to FIG. 8A, in the first step S101 of the subroutine of "washing", the microcomputer 72 determines whether the water contained in the inner tank 22 has reached a predetermined amount in accordance with the input from the pressure sensor 44. FIG. Determine whether or not.

If less than the predetermined amount, the microcomputer 72 opens the water supply valve 50 and continues the water supply (step 102).

When a certain amount of water is contained in the inner tank 22, the microcomputer 72 closes the water supply valve 50 in step S103 and is provided to the input ports P1-P4 in step S104. The temperature of the contained water is measured based on the temperature data from the temperature sensor 46.

That is, if water accumulates in the inner tank 22, the temperature data input at that time is the temperature data of the water, and thus the microcomputer 72 can detect the water temperature.

In step S105, the microcomputer 72 determines the rank of the water temperature based on the temperature data collected in step S104.

That is, in this step S105, it is determined whether the rank of water temperature is rank X shown in the said Table 1. If the rank of the water temperature is X, the microcomputer 72 drives the buzzer 82 in the next step S106 to inform the user that the water temperature is too low.

If the water temperature is higher than rank X, the microcomputer 72 further determines in the next step S107 and S108 whether the water temperature is in the temperature range I, II or III.

That is, in Table 1, the temperature range I indicating low temperature if rank X or A, the temperature range II indicating medium temperature if rank B, and the temperature range III indicating high temperature if rank C or D are detected, respectively. do.

If the water temperature rank I is detected in step S107, the microcomputer 72 does not turn on the light-emitting diode 60a in step S109. That is, "12 minutes" is set as the washing time. Determine if there is any.

If "12 minutes" is set, since the water temperature is low, the microcomputer 72 forcibly sets "14 minutes" as the washing time to the timer 74 (FIG. 3) in the next step S110. .

When "6 minutes" is set as the washing time in steps S111 and S112 in the same manner, the microcomputer 72 sets "8 minutes" to the timer 74 as the washing time.

If "3 minutes" is set as the washing time, the microcomputer 72 sets "3 minutes" to the timer 74 as it is in step S113.

In this way, when the water temperature is low, the microcomputer 72 corrects the data of the washing time set in the timer 74 to extend the washing time set at that time.

In step S108, when the rank II of the water temperature is detected, the microcomputer 72 performs the washing time " 12 minutes ", " 6 minutes " or " 3 minutes " set at that time in steps S114-S118. The timer 74 is set as it is as washing time data.

If it is determined "NO" in step S108, the water temperature at that time is rank III, and it is high temperature.

Therefore, the microcomputer 72 determines whether "12 minutes" is set as the washing time in the next step S119. If " 12 minutes " is set, the data of " 12 minutes " is set in the timer 74 as the washing time as it is.

However, if it is determined in step S121 that the light emitting diode 60b is lit and "6 minutes" is set as the washing time, then in step S122, the microcomputer 72 has a high water temperature. The washing time is corrected to "5 minutes" and the data is set in the timer 74.

When " three minutes " is set as the washing time, the " three minutes " is set to the timer 74 as washing time data as it is in step S123.

Thus, in this embodiment, the microcomputer 72 suitably changes the washing time initially set according to the data or rank of the water temperature applied to the temperature sensor 46.

Specifically, according to the following Table 2, the microcomputer 72 is changed to extend the washing time when the water temperature is low, and to change the washing time when the water temperature is high.

The reason for changing the washing time according to the water temperature is that, in general, the higher the water temperature, the more easily the clothes to be washed or rotated, and thus the washing rate is high.

On the other hand, the lower the water temperature is, the more difficult the clothes to be washed or rotated or rotated, and thus the lower the cleaning rate.

TABLE 2

After passing through steps S110, S112, or S113, the microcomputer 72 returns " 50 seconds " to the timer 74 as the time of the initial cycle described with reference to FIG. 4 in step S124. Set.

Similarly, after passing through step S115, S117 or S118, the microcomputer 72 sets the timer "time 40" of the initial cycle to the timer 74 in step S125.

After passing through step S120, S122 or S123, in step S126, the microcomputer 72 sets "30 seconds" to the timer 74 as the time of the initial cycle.

As described above, the initial cycle 90 (FIG. 4) is a water stream mainly used to dissolve the detergent, while the dissolution of the detergent is slow when the water temperature is low.

Therefore, in this embodiment, the time for which the microcomputer 72 changes the duration of the initial cycle 90 (FIG. 4) according to the detected water temperature rank, and the detergent is sufficiently dissolved according to the water temperature at that time. Set.

Then, in step S127, the microcomputer 72 sets the initial cycle display characters in the display character area 76 (FIG. 3).

Thereafter, in step S128, the microcomputer 72 determines whether the initial cycle display character is set or not, and if it is determined "yes" in this step S128, the microcomputer 72 outputs the output port. The output to (P10) and (P11) is controlled.

In doing so, the motor 32 is driven to generate initial cycle water flow by the pulsator 30 (FIG. 1).

As described above, the initial cycle flow is made up of a set of repeating units having a power failure and a reverse time of 1.0 second and a rest time of 0.2 seconds.

Therefore, in step S129, the microcomputer 72 first outputs a low level to the output port P10 and a high level to the output port P11 to electrostatically charge the motor 32.

Therefore, the pulsator 30 is electrostatic and the clockwise rotational flow is generated in the inner tank 22.

After 1 second has elapsed, the microcomputer 72 outputs a high level to either of the two output ports P10 and P11 to stop the motor 32.

When 0.2 second elapses as the idle time, the microcomputer 72 continuously outputs a high level to the output port P11 and a low level to the output port P11.

Therefore, the motor 32, that is, the pulsator 30 is reversed, and the countercurrent direction of rotation flow occurs in the inner tank 22. As shown in FIG.

In step S130, the repeating unit constituting such an initial cycle is continuously executed until "remain time 0" of the initial cycle is detected. When the elapse of the initial cycle time "50 seconds" is detected in step S130, the microcomputer 72 resets the initial cycle display character set in the display character area 76 first in step S131.

Upon completion of the initial cycle, the microcomputer 72 next determines whether or not the auxiliary cycle display characters are set in steps S132 and S133 and determines whether the end cycle display characters are set. .

Since none of these display characters is set at the beginning of the washing process, the microcomputer 72 executes the main cycle in step S134.

In this main cycle, firstly, the precipitation is set manually by the user or automatically set by the microcomputer 72.

In the case where the precipitation is set, the main cycle is executed as a main cycle composed of a set of repeating units as shown in FIG. 6A.

In the case of the standard water flow, the main cycle shown in FIG. 6C is executed in the case of the weak water flow.

This repetition of power failure → stop → reverse → stop is performed as low level or high level as necessary for the data of the output ports P10 and P11 of the microcomputer 72, as in the initial cycle described in the previous step (S129). Can be achieved by controlling

Thereafter, in the step S135, the microcomputer 72 performs the washing time set in the timer 74 at step S110, S112, S113, S115, S117, S118, S120, S122 or S123. Determine whether or not.

If the washing time is not " 0 ", then, in the next step S136, it is determined whether the remaining time is equal to or greater than the predetermined value. If it is determined as "Yes" in this step S136, the microcomputer 72 sets the auxiliary cycle display character in the display character area 76 in step S137.

When the auxiliary cycle display character is set, "Yes" is detected in step S132, and therefore, the microcomputer 72 executes the auxiliary cycle in the next step S138.

This auxiliary cycle is made from a repetition of a repeating unit of 1.0 second to 0.1 second idle time, as described above, in either the outage time or the reverse time.

Even when the sub-cycle is executed, the microcomputer 72 controls the switching of the low level or the high level of the output ports P10 and P11 and the time, and the predetermined clockwise flow or half of the flow is controlled by the pulsator 30. Clockwise water flow is formed.

As described above, the auxiliary cycle is executed for about 9.9 seconds, and in the next step S139, the microcomputer 72 determines whether the predetermined time, that is, 9.9 seconds has elapsed, by the timer 74.

When the time for the auxiliary cycle ends, the microcomputer 72 resets the auxiliary cycle display character set before the display character area 76 in the next step S140.

Thereafter, the microcomputer 72 again determines whether the remaining washing time is 20 seconds or more in steps S135 and S136. If the remaining washing time is 20 seconds or more, step S134 and step S138 are executed respectively to form the main cycle 92 as shown in FIG. 4, and the auxiliary cycle 945 is appropriately intermittent. Is formed.

That is, the auxiliary cycle 94 is automatically inserted into the main cycle as many times as the length of the total washing time.

In detail, the auxiliary cycle is inserted more times when the washing time is longer according to Table 4 below.

As such, the reason for changing the insertion cycle of the auxiliary cycle according to the water temperature is generally that the higher the water temperature is, the less staying of clothes to be washed and the shaking is easy, and thus the cleaning rate is high.

On the other hand, the lower the water temperature, the more difficult it is for the washed clothes to rotate or swing, and thus the lower the cleaning rate.

TABLE 4

As described above, the washing time is appropriately changed depending on the water temperature rank at that time.

For example, even if "12 minutes" is set, it is extended to "14 minutes" when the water temperature is low.

Therefore, it can be said that the number of insertion of the auxiliary cycle is also determined according to the water temperature rank.

For example, even if the washing time "6 minutes" and the insertion cycle of the auxiliary cycle is set to "2 times", if the water temperature rank is I, the washing cycle is changed to "8 minutes" and the insertion cycle of the auxiliary cycle is "3 times". Is changed to " 5 minutes " and " once "

If it is detected in step S141 that the remaining time is 20 seconds or less, the microcomputer 72 sets the end cycle flag in the display character area 76 in the next step S142. do.

In this way, when the end cycle display character is set, the determination is made to YES in step S133. Therefore, the microcomputer 72 executes the end cycle in step S143 at the end of the washing time.

This end cycle is to swing the entire inner tub 22 as described above with reference to FIG. 4 so that the clothes are evenly distributed therein.

Also in this step S143, the microcomputer 72 appropriately controls the high level or the low level of the output ports P10 and P11, and the time.

After this step S143, the microcomputer 72 determines whether the washing time has reached "0" in step S135 again.

If the washing time is "0", the subroutine of "laundry" shown in Figs. 8a and 8b is returned to the main routine shown in Figs. 7a to 7d. ) do.

Returning to Fig. 7B, the microcomputer 72 determines whether or not "twice" is set as the number of times of rinsing by seeing the light emitting diodes 62a and 62b associated with the switch 62 in step S17. do.

If the number of times of rinsing is set twice, that is, if it is determined as "Yes" in this step S17, the microcomputer 72 will carry out internal thread based on the input from the pressure sensor 44 in the next step S18. It is determined whether or not a certain amount of water exists in (22).

If a predetermined amount or more of water is present, in the next step S19, the microcomputer 72 sets the display character of " divided by one " in the display character area 76, and displays it in FIG. 9 in step S20. Run a multiple subroutine.

Referring to FIG. 9, at the first step S201, the microcomputer 72 opens the drain valve 18, and at step S202, the microcomputer 72 opens the drain valve 18 and enters a predetermined amount of water into the inner tank 22 by the input from the pressure sensor 44. Determine if it exists.

That is, the drain valve 18 is opened until the liquid level in the inner tank 22 becomes below fixed by step S201 (S202).

In step S203, it is determined whether or not the "one-division multiple" display character is set. If the 1-minute multiplier is set, the drain valve 18 is opened in the next step S204 to determine whether the 1-minute has passed to the step S205.

In other words, the drain valve is opened for one minute in steps S204 and S205. When one minute has elapsed, the drain valve 18 is closed in step S206 in the same manner as in the case where "one-division multiple" is not set, and the flow returns to the main routine again.

In this way, when " dividing multiple " is executed in step S20 of the main routine, in step S21, the microcomputer 72 is turned on or not, that is, speedicose is set. Judge whether there is or not.

When the speedy course is set, one minute as the dehydration time in step S22 is speedy course, and when it is not set, "2 minute" is set as the dehydration time in step S23, respectively.

Thereafter, the dehydration subroutine of step S24 is entered.

In the dewatering subroutine shown in FIG. 10, the microcomputer 72 first determines whether the rear lid is closed by looking at the upper lid switch (not shown) in step S301. If the upper lid is not closed, the microcomputer 72 outputs the high level to the output ports P10 and P11 in the next step S302 and at the same time turns off the motor 32 and steps the same. In S303, the drain valve 18 is closed.

In other words, the dehydration process is not performed because the upper lid is in a dangerous state.

If it is judged that the upper lid is closed in step S301, the microcomputer 72 opens the drain valve 18 in the next step S304 and the output port P10 in step S305 simultaneously with the salt. The low level is output to the output port P11, respectively, and the motor 32 is driven in the electrostatic direction.

Therefore, the inner tank 22 rotates like the pulsator 30 and the dehydration process is performed.

In this way, the dehydration process is continued for the time set in step S22 or S23, that is, 1 minute or 2 minutes.

If it is determined in step S306 that the remaining time for dehydration has disappeared, in the next step S307, the microcomputer 72 "offs" the motor 32 and closes the drain valve 18 and closes the main valve. Return to the routine.

When the dehydration process is finished, the rinsing is performed next, but the microcomputer 72 determines whether or not the speedicos is set again in the next step S25.

When the speedy course is set, the microcomputer 72 sets "1 minute" as the time for the rinse in the next step S26, and otherwise "2 minutes" as the time for rinsing in the step S27. ".

In the next step S28, the subroutine of "rinse" shown in FIG. 11 is executed. In the first step S401 (S402) of the subroutine, the microcomputer 72 determines whether the inner tank 22 contains a predetermined level or more of water by the pressure sensor 44, and if not, the water supply valve Open the water supply 50.

And if water of a predetermined level or more is contained, it is determined in step S403 whether "water rinse" is set by the switch 68.

If "water rinse" is set, the microcomputer 72 is left with the water supply valve 50 open. Otherwise, in step S405, the microcomputer 72 opens the water supply valve 50. Close it.

Thereafter, in step S406, the microcomputer 72 outputs a high level to the output port P10 and a low level to P11, respectively.

Therefore, when the motor 32 is inverted and the pulsator 30 is inverted, the counter current rotates in the counterclockwise direction.

When the rinsing time set by step S26 or S27 becomes "0", the microcomputer 72 "offs" the motor 32 in step S408 via step S407. At the same time, when the water supply valve is open, the water supply valve 50 is closed and returned to the main routine.

When " twice " is set as the number of times of rinsing back to the seventh degree, one rinse formed in the next step S29-S37 after the end of step S28 is executed again.

When " once " is set as the number of times of rinsing, drainage → dewatering → rinsing are performed in the same manner without passing through steps S17-S27 and in the same manner. In this way, rinsing is complete | finished.

Thereafter, in step S38 of FIG. 7d, the microcomputer 72 determines whether one of the light emitting diodes 62a-62c for the dehydration step is lit, and determines whether or not the dehydration step is performed. .

In the case of performing the dehydration process, in the next steps S39 and S40, the microcomputer 72 detects the temperature at that time based on the data of the temperature sensor 46 supplied to the input ports P1-P4. .

That is, the temperature sensor 46 which detected the water temperature in the washing process is used as the sensor which detects the temperature in the dehydration process, and the microcomputer 72 controls the dehydration time according to the temperature ranks I, II or III.

When the temperature rank I is detected in step S39, the microcomputer 72 determines whether "6 minutes" is set as the dehydration time in the next step S41.

If "6 minutes" is set, the microcomputer 72 forcibly sets "7 minutes" as the washing time to the timer 74 in the next step S42, because the temperature is low.

In the same manner, in step S43 and step S44, when "3 minutes" is set as the dehydration time, "4 minutes" is set as the dehydration time.

If the selected dehydration time is not "6 minutes" or "3 minutes", "1.5 minutes" is set. In this case, the microcomputer 72 at step S45 is "2 minutes" as the draining time. Is set in the timer 74.

In this way, when the temperature is low, the microcomputer 72 modifies the dehydration time data and sets the timer 74 so as to extend the dehydration time set at that time.

When the rank II of the air temperature is detected in step S40, the microcomputer 72 dehydrates the dehydration time "6 minutes", "3 minutes" or "1.5 minutes" set at that time in steps S46-S50. It sets in the timer 74 as time data.

If it is determined "NO" in step S40, the temperature at that time is rank III and it is high temperature.

Therefore, the microcomputer 72 determines whether "6 minutes" is set as the dehydration time in the next step S51.

If " 6 minutes " is set, the microcomputer 72 in step S53 sets " 5.5 minutes " as the dehydration time to the timer 74 because the temperature is high.

If it is determined in step S53 that "3 minutes" is set as the dehydration time, in the next step S54, the microcomputer 72 corrects the dewatering time to "2.5 minutes" to determine the timer ( 74).

When "1.5 minutes" is set as the dehydration time, the microcomputer 72 sets "1.5 minutes" as the dehydration time data to the timer 74 in step S55.

In this way, the microcomputer 72 forcibly changes the dehydration time initially set in accordance with the following Table 5 according to the rank I, II or III of the detected air temperature, and sets the timer 74.

Thereby, a constant dehydration state can always be obtained.

The reason for changing the dehydration time according to the temperature in general is that the higher the temperature, the higher the natural drying rate, and therefore the higher the dehydration rate, while the lower the temperature, the lower the natural drying rate, and therefore, the lower the dehydration rate. .

TABLE 5

Thereafter, in step S56, the dehydration process described with reference to Fig. 9 is executed, and the microcomputer 72 raises the buzzer 82 in step S57, thereby notifying the end of the series of washing processes. .

As described above, according to the present invention, the "entanglement of the fabric" is suppressed and the rotation of the garment is facilitated, thereby making the movement of the garment active, thus enhancing the cleaning power and always maintaining a constant dehydration state regardless of the elevation of the temperature. You can get it.

Claims (20)

An inner tank 22 of the washing machine 10, a pulsator 30 rotatably installed in the inner tank 22, and driving means 32 and 36 for driving the electrostatic and reverse driving of the pulsator 30. And first means (72) for controlling the drive means (32) and (36) to form a first cycle consisting of a set of first repeating units including power failure and reversal of the pulsator (30); Controlling the drive means (32) and (36), intermittently during the first cycle, from a set of second repeating units including an interruption and reversal of the pulsator (30), and shorter than the first cycle And a second means (72) for forming a second cycle. 2. A washing machine according to claim 1, wherein said first means (72) comprise means for differentiating time between power failure and reversal in said first repeating unit. 3. The washing machine according to claim 2, wherein said second means (72) comprises means for forming said second repeating unit different from said first repeating unit. 4. The washing machine according to claim 3, wherein the first means (72) includes means for differentiating the outage time and the inversion time of the adjacent first repeating unit. 5. A washing machine according to claim 4, wherein said first means (72) comprise means for equalizing or setting the time of adjacent first repeating units equally or substantially equal. The method of claim 1, wherein the time of power failure and reversal of the second repeating unit constituting the second cycle is different from that of the first repeating unit constituting the first cycle. washer. The washing machine according to claim 6, wherein the power failure and the reverse time are the same in the second repetition unit constituting the second cycle. The method according to claim 1, wherein the temperature detection means (46) for detecting the temperature of water contained in the washing machine inner tank (22) and the temperature inserted by the temperature detection means (46) are inserted into the first cycle. Washing machine comprising a number changing means (72) for changing the number of times of insertion of the second cycle. The washing machine according to claim 8, wherein the number of changing means (72) increases the number of times of inserting the second cycle as the temperature is lower. 2. The driving device (32) according to claim 1, wherein the driving means (32) is controlled after the start instruction means (72) for instructing the start of the washing process and after the start instruction of the start instruction means (72). And a third means (72) for forming a third cycle made up of a third set of repeating units including an interruption and reversal of the pulsator (30). The method according to claim 10, wherein the duration of the third cycle is determined according to the temperature detected by the temperature detecting means (46) and the temperature detecting means (46) for detecting the temperature of the water contained in the washing machine inner tank (22). Washing machine, characterized in that consisting of a time changing means 72 for changing. In the outer tub 14 of the washing machine and the outer tub 14, the inner tub 22 and the inner tub 22, which are rotatably installed in the washing tank and the dehydration process, are rotatably installed. First driving means (32) and (36) for electrostatically or reversely driving the pulsator (30) and the pulsator (30) to be used, and for driving the inner tank (22) in the dehydration process. The first drive means 32 (based on the temperature means detected by the drive means 32 and 36 and the temperature detection means 46 for detecting the temperature and the temperature detection means 46); Washing machine, characterized in that it comprises a means (72) for controlling the rotation time of the inner tank (22) rotated by 36. 13. The temperature sensing element according to claim 12, wherein the power switch and the temperature detecting means (46) are installed at the same position as in the air until after the water is contained in the inner tank (22). 46a) and immediately after the power switch is turned on, the temperature is measured based on the output from the electrical temperature sensitive element 46a, and thereafter for measuring the water temperature in the inner tank 22 based on the output from the temperature sensitive element. Washing machine comprising means (72). 14. The washing machine according to claim 13, comprising display means (70a-70 deg. C) for selectively displaying the measured air temperature and water temperature. 15. The washing machine according to claim 14, wherein the display means (70a-70 deg. C) includes a plurality of display elements, and each of the display elements displays the air temperature or the water temperature separately for each tank. The washing machine according to claim 13, comprising means (72) for controlling said washing process in accordance with said water temperature. 17. The method according to claim 16, wherein the drive means (32) (36) is controlled to form a first cycle for forming a first cycle consisting of a set of first repeating units including an electrostatic and reversal of the pulsator (30). Means 72 and the drive means 32, 36 are controlled from a set of second repeating units, including power failure and reversal of the pulsator 30 during the first cycle, And a second means (72) for forming a second cycle shorter than the cycle of. 18. The washing machine according to claim 17, wherein the washing machine comprises a number changing means for changing the number of times of inserting the second cycle inserted into the first cycle according to the water temperature. 13. The apparatus as set forth in claim 12, characterized in that it comprises means (72) for controlling the drive means (32) and (36) to form a cycle consisting of a set of repeating units including an electrostatic and reverse of the pulsator (30). Washing machine. The pulsator 30, which is rotatably installed in the inner tank 22 and the inner tank 22 of the washing machine, and driving means 32 and 36 for driving electrostatic and reverse driving of the pulsator 30, and the driving means. (32) 36 means for forming a cycle from the set of repeating units including the blackout and the reverse of the pulsator 30, and the cycles having different settling time and reverse time for each repeating unit 72 Washing machine characterized by the above.

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