JPS6041987A - Drum type washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention is a drum type in which dehydration is performed by increasing the speed of a rotating drum in an outer tank in the following order: low speed rotation, balance rotation, weak dehydration rotation, and scleral water rotation. Regarding washing machines.

(Explanation) Conventional technology This type of drum-type washing machine often immediately stops the spin cycle and returns to low-speed rotation at the front edge when it detects vibrations above the chamber level during the spin cycle. Before the rotation, medium speed rotation is performed, and even if vibration is detected here, if there is vibration, the medium speed rotation is stopped and sent back.This is sufficient in the first stage of medium speed or high speed. This is due to not being able to perform vibration detection.If water still remains in the outer tank when the rotation returns to low speed, the clothes will move in the water, making it easier to untie the machine.However, when the rotation speed returns to medium or high speed Since the water has already been drained, and the medium and high speeds have stopped immediately, the clothes have hardly been dehydrated.Therefore, the clothes that have become heavy due to water content are not loosened by slow rotation. required an extremely long loosening operation.

c) Purpose of the Invention The present invention aims to efficiently perform a loosening operation in a short period of time after vibration detection after completion of drainage.

<2> Structure of the Invention The present invention detects predetermined vibrations primarily during balance rotation and secondarily during weak dehydration rotation, and as a result of the primary detection, provides safety against side load vibration during weak dehydration rotation. , this weak dehydration rotation is forcibly executed for a certain period of time. That is, during this weak dehydration rotation, an unpleasant vibration occurs in the next scleral water rotation, and even if this is detected, this weak dehydration rotation is forced, and the water in the clothes is considerably removed. Therefore, the clothing is lighter and easier to unravel during low-speed, balance rotation as a result of the secondary detection.

(Po) Example Figure 1 is an internal mechanism diagram of a drum-type fully automatic washing machine, and Figure 2 is an explanatory diagram of piping centered on the outer tank. It is an outer tank that is elastically attached (-1), and a horizontal shaft type rotating drum (3) is installed inside, and a washing motor (4), which is a three-phase 200V compatible induction motor, is installed in the outer lower part. =3- (5) and the pulley belt rotate the rotating drum (3). Here, the washing motor (4) rotates the rotating drum (3).
3) at low speed (approximately 45r, p, m) or balance (
Rotate at approximately 9°r, p, m) (reverse in some cases)
let In addition, the dehydration motor (5) is weak (approximately 425r,
p, m>T9. Or rotate it in one direction at high speed (approximately 5 sor, p, m). If the balance rotation is continued in one direction,
The clothes inside the rotating drum (3) are stretched against the inner surface of the drum by centrifugal force.

(6) is a water supply source, which includes a small diameter detergent input channel (9) connected to the outer tank (1) via a detergent input valve (7> and a detergent cup (8)), Agent injection valve (10)
A small-diameter auxiliary agent input path 12) connected via an auxiliary agent cup (11) and a large-diameter water supply channel (14) connected via a water supply valve (13) are provided in parallel with each other. ing.

(15) is a hot water source (boiler, etc.), and hot water J↑(1
6) can be connected to the outer tank <1).

(17) is a steam source, which is connected to the lower part of the outer tank 4-(1) via a steam valve (18).

(19) is the ejection force of the steam source (17) from the ejector (20).
A glue injection valve (23) is inserted in the glue injection path where the glue is sucked up from the sink (21) containing the glue via the flexible hose (22) and sent to the outer tank (1). There is.

Note that the hot water m (15) is not particularly necessary if the steam source (17) is present. In addition, if there is no steam source (17), a ζJ pump (24>) is separately connected to the glue injection path (19>) to serve as the injection source.

(25) is a drainage channel connected to the lowest part of the outer tank (1),
Drain valve (27) after branching the air trap (26)
is inserted. The air trap (26) is connected to the liquid level switch (2g) (29) (30) (3) via a pressure hose.
1) are linked, and these switches are respectively low (1/10 of the outer tank radius), middle and low (the same <3/10), middle and high (the same 5/10), and high (the same <7/10). It operates by detecting the liquid level.

<32) is a temperature sensing element consisting of a thermistor or the like which detects the temperature of water etc. in the outer tank (1) and outputs a detection signal.

<33) is a vibration switch fixed to the main body <2), and the operating rod (34> is inserted into an inverted U-shaped detection fitting (35) fixed to the outer tank (1).This vibration The switch (33) is activated when vibration occurs due to a side load of 2 kg during mild dehydration rotation. Also, with this setting, the vibration switch (
The operating load of 33> is 6 kg. That is, this vibration switch (33) detects vibrations due to a side load of 6 kg during balance rotation, and vibrations due to a small side load of 2 kg during weak dehydration rotation. Therefore, since scleral water cannot tolerate small vibrations, it is safe even if the strength of the structural members is low, and in the end, it is possible to reduce material costs while maintaining safety.

FIG. 3 is a block diagram of a microcomputer (hereinafter referred to as microcomputer) that controls the process of this drum-type fully automatic washing machine, and (36) is a central processing unit (hereinafter referred to as C
PU), (37) is the read W memory (hereinafter referred to as R).
(referred to as OM), (38) is a read-and-write memory (hereinafter referred to as RAM) that uses a battery (not shown) as the source so that the stored contents can be retained even in the event of a power outage or power outage (39)
(40) are first and second person output interfaces. These are connected to each other by a data bus, an address bus, and a control signal. In addition, RAM (3g
> The backup battery may be one that is charged when the power is turned on and serves as a power source during a power outage.

41) is a display device connected to the first person output interface (39), which includes a pair of time display tubes (42) and temperature display tubes (43), as shown in FIG.
42) It is arranged around (43).
Auxiliary agent”, “Glue 4, r-low rotation”, “Low 1”, “Medium low 4”, “
Indicator lights (using segments of indicator tubes) that light up depending on the status of junior high school students, high school students, and drainage only (44).
..., ``pre-wash'', ``wash'', ``rinse 14. Light emitting diodes (hereinafter LE
D) (45〉...).

(46> is a D/7-A converter that converts the digital signal for temperature setting from the first person's output ink face (39) into voltage, and the terminal voltage of the temperature detection element (32>) and the comparator (47) ) to measure the temperature.

(48) is a 6 x 4 matrix type keyboard connected to the first person output interface (39), and as shown in Figure 5, there are number keys (49)..., "time", "temperature" , ``Cold water level'', ``Warm water level 3'', ``Auxiliary agent'', ``Glue j,
“Strength”, “Exclusion 1”, “Program”, “Call”, ′
It is equipped with function keys (50) of ``write'', ``0 fast forward'', and ``start/stop''.

Note that the first person output interface (39) has a built-in timer composed of a counter and a working RAM. This interface (39) further includes a start switch (51) that tells whether to start time counting with a water level signal or with both water level and temperature signals, and a steam fi (17).
), the steam switch (52) tells you whether the glue is added automatically or not, the glue switch (53) tells you whether to add the glue automatically or manually, and it prevents wrinkles when the temperature of the washing water is over 50°C. An input is made as necessary from a cool-down switch (54) which instructs whether or not to perform a so-called cool-down in which water is mixed with water to lower the temperature.

The second person output interface (40) includes each of the liquid level switches (28) (29>(30) (31)), a vibration switch (33), and a thermal switch (55) that works on the safe side when Tanabata overheats. , the door switch (5) of the rotating drum (3)
6). The second person output interface (40) outputs a low speed reversal signal or balance rotation signal to the washing motor (4), a weak dehydration rotation signal or a scleral water rotation signal to the dehydration motor (5), and (4) Prower morph of the fan that cools (5) (
57), water supply valve (13), detergent input valve (7), auxiliary agent input valve (10), steam valve (8), drain valve (27), hot water valve (
16) and the glue injection valve (23), respectively.

Next, FIG. 6 shows only five of the ten driving programs (courses) stored in the ROM (37) so as not to disappear semi-permanently. Here, there are 7 steps from "1 pre-wash" to "1 dehydration" like two series, but I want to wash it.
Before each rinsing step, there is a small step of ``draining/slight dewatering'' whose time is set independently of the set time of each step. The time in FIG. 6 is the set time for each stroke, and the time is counted according to the water level or the water level and water temperature according to the operation of the start switch (51). The cold water level is the set water level, and the temperature is the set temperature. Strong and weak indicate the strength of washing and rinsing, with strong being 8 seconds (rotation)
The rotating drum (3) is reversed from side to side in a cycle of -1.5 seconds (pause), and in low mode it is reversed in a cycle of 2 seconds (rotation) - 8 seconds (pause). Furthermore, "water" in temperature means the unheated feed water, and "weak" in step (1) of "dehydration" means weak dehydration.

To explain the operating procedure using the driving program "PI3" as an example, first press the "Program" key <50> and press "15" on the number keys (49). Then, the time display tube (42) indicates °P'', and the temperature display tube (43) indicates °'
15'' is displayed. At this point, press the ``Call'' key (50), or press the ``Start/Stop'' key (50), or press the ``Call'' key (50), then press the 1 Scoot/Stop key ( 50), the process display L E D (45)... will be displayed that corresponds to the set process, 'P15' will display all the lines, E
D (45)... lights up and the first pre-wash is started.
The LED (45) flashes. While the process is in progress, the LEDs corresponding to the process in progress flash sequentially. The "rapid forward" motor 50) moves the stroke jIL line d(4,
Immediately end the corresponding process (the process where the LED is flashing). This fast forwarding can be executed with the stroke temporarily stopped while the stroke is actually in progress.

' P 15. If you press the ``1 Start/Stop'' key (50) after displaying on the display tube (42), or if you press the ``Call'' key (50) and then press it, the process 'P15J will be executed, and this 1 Pressing the Start/Stop key (50) will stop the process and pressing it again will restart it. In this operation program, the program starts with the "r prewash" process, but the time display tube (42) and temperature display tube (43) display the actual time and water temperature of the "r prewash" process, and each indicator light (44>... - indicates the setting status.

A similar display can be achieved in each of the following steps. In the 1st pre-washing process, the water temperature is set at 60°C and the 1st water level is set to medium-low, so steam is added and heated while water is being supplied to medium-low. This steam is ejected a little later than the water supply. The water level can be detected by a liquid level switch (medium/low) (29), and the temperature can be detected by a temperature detection element (32), and the water supply valve (13) and steam * (18) are opened and closed by the respective detection signals. The same goes for controlling the water level and temperature in each stroke.

Additionally, when the water temperature drops below 12°C from the set temperature, the steam valve (18) is automatically opened to heat the water.

When the "pre-washing" process is completed, a small process of ``drainage/slight dewatering'' is interposed. First, a low-speed reversal of 3 seconds (left rotation) - 2 seconds (pause) - 3 seconds (right rotation) - 2 seconds (pause) - 5 seconds (counterclockwise rotation) is performed without draining water, followed by a balance rotation. (left rotation) is performed, and vibration detection is performed here by the vibration switch (33). If a predetermined vibration (corresponding to a load of 6 kg or more) is present, it will return to low speed counterclockwise rotation, and the
After a few seconds, balance rotation is performed again and vibration detection is performed. If the vibration is below a predetermined level, water is drained for the first time while continuing balance rotation. In addition, it is better to ladle the clothes into the rotating drum (3) if the clothes can be turned over while still soaking in water.
2- They can be placed in one place. Liquid level switch ((ffi>(
28> is reset, the balance rotation shifts to a weak dehydration rotation (left rotation) for 30 seconds 40 seconds after it is reset. These 30
The time of seconds is the vibration switch (3 seconds) during this weak dehydration rotation.
3) Even if vibration corresponding to a flat load of 2 kg or more is detected, it is ignored and fixed. That is, the purpose of detecting vibration during mild dehydration rotation is to ensure safety during the next scleral water treatment, and even if vibration occurs, there is no problem in terms of strength as long as the weight is 6 kg or less during mild dehydration rotation.

When the weak dehydration rotation (30 seconds) is completed, inert rotation is performed for 15 seconds, and low-speed reversal (removal rotation) is performed for 30 seconds in a cycle of 3 seconds (rotation) - 2 seconds pause).

The washing motor (4) is reversed by changing the power supply, and when changing from low speed to balance, the △ connection is changed to the large connection. This is shown in FIG. In the same figure, washing
During low-speed reversal during rinsing, switches (58) and switches (59) are alternately closed. At this low speed, the connection is △. During the subsequent balance rotation, the switches (60) and switch 1) are closed, but since this is a large connection, the number of rotations is doubled.

In addition, the dehydration motor (5) is also △- in the same way as the washing motor (4).
Switch group (58') ..., (60')
)..., (61°)..., weak dehydration rotation (425r, p, m) is performed for the Δ connection, and scleral water rotation (850r, p, m) for the large connection.

Therefore, in order to change the winding of the washing motor (4), the switches (60)..., (61) are used to prevent short circuits.
It is necessary to close the switch (59) after it is completely opened, and this takes about 0.2 seconds. Therefore, in the previous stage of dewatering, water is not drained to improve balance and the load is increased, so during the pause (0.2 seconds) when transitioning from low speed rotation to balance rotation, the speed is greatly reduced and the previous stage is reduced. Clothes that have been loosened by rotating at low speed may become hardened.

Therefore, for about 2 seconds including this 0.2 seconds, the dehydration motor (5) is driven at a rotation speed suitable for weak dehydration, and the rotating drum (
3) prevents deceleration. This operation is shown in flowchart 1- in FIG. Here, first, the counter for the 1st dehydration process is cleared, and the setting status of this process is displayed. If the counter is 0, the washing motor 4) is reversed at a low speed for 15 seconds, and this time is determined and 50 is entered in the 0N10FF counter. This ON1
Since the 0FF counter indicates 1 second in 10 counts, 50 counts indicates 5 seconds. This 5 seconds is the time for balance rotation. After 50 is entered, +1 is entered into the counter. Then, since the determination result of the counter becomes 1, it is determined whether the content of the 0N10FF counter is 48 or less. That is, it is determined whether 02 seconds have elapsed. If 02 seconds have not passed, 0N1
It is determined whether the content of the 0FF counter is 30 or less, that is, whether 2 seconds have elapsed. If the elapsed time has not elapsed, the dehydration motor (5
) will rotate slightly, and this will continue for 2 seconds. 01 seconds (
The above-described determination and processing are performed until the count number of the ON10FF counter reaches 1), and then the content of the 0N10FF counter is decremented by 1 to become 49. Set this to 0
However, since this is not the case and the counter content remains 1, the determination and processing are performed again just because the content of the 0N10FF counter changes from 50 to 49. However, the discrimination result is the same in the case of 50 and in the case of 49, so
．． After 1 second has elapsed and a total of 0.2 seconds have elapsed, the content of the 0N10FF counter remains 48 and the counter content remains 1.

Then, since it is determined at 48 that they are the same, the balance rotation of the washing motor 4) starts. Further, the dewatering motor (5) is also rotating weakly. O every time this action is repeated
N10 FF The contents of the F counter are decremented by -1, and -
When the number reaches 30 after 20 (for 2 seconds), it is determined that they are the same at 30, so the dewatering motor (5) stops. Furthermore, when this operation is repeated and the content of the 0N10FF counter becomes 0 after 5 seconds, the balance rotation also stops. Then, the content of the counter is incremented by 1 and becomes 2, and based on the determination result, the process moves to the next operation of the "dehydration" process.

If the cool-down switch (54) is set, water is automatically supplied dynamically during the last minute of a process where the set temperature is 50°C or higher. Water can be supplied up to a water level one step higher than the water level set in each stroke. In this "pre-washing" process, water can be supplied at medium-high water because it is medium-low. As a result, the water temperature is often lower than 50°C and the clothes are cooler and less likely to wrinkle. That is, this cool-down is an operation to prevent wrinkles. Note that the water supply may be started as long as it is before draining, and an appropriate point other than 1 minute before the end can be adopted depending on the water supply amount, outer tank capacity, etc. This cool-down operation is shown in the flowchart of FIG. here,
By opening and closing the steam valve 18), the set temperature will be lower than that.
During the set time of the rinsing process, one minute before the end, it is determined whether the set temperature for that process is 50°C or higher. However, if not, move to the next step after the set time has elapsed.If the set temperature is 50°C or higher, check to see if the liquid level switch one step higher than the set water level has tripped (operated). If it has not tripped, the water supply valve (13
)open.

Open the steam valve (18) one minute before the end of heating.
o- Things will disappear. If the level switch trips before the end, the water supply valve (13) closes and a low water temperature, slow reversal is performed until the end of the time to cool the clothes. If the trip does not occur before the end of the time, close the water supply valve (13) after the time ends.

Moreover, when this cool-down switch (54) is set, even if water is supplied to the water level one step higher, nothing will happen unless the temperature falls sufficiently. Therefore, although water is automatically supplied during this setting, the end of the water supply can be determined depending on the actual water temperature. That is, when the temperature detection element 32) detects that the actual water temperature is below 40°C, water supply is terminated. This operation is shown in flowchart 1 in FIG. Here, the water temperature is controlled to be the set temperature by opening and closing the steam valve (18), and the washing mode'/(4) is reversed at a low speed. When the set time for the washing and rinsing process reaches a predetermined time,
It is determined whether the set temperature for that process is 50° C. or higher, and if not, the process moves to the next process after the set time has elapsed (ended).

If the temperature is 50°C or higher, it is determined whether the water temperature in the outer tank (1) is at the specified temperature (40°C in this case), and if it is higher than 40°C, the water supply valve (13) is opened to supply water. . When the set time becomes shorter than the predetermined time, temperature control using steam is completely stopped, and the water temperature decreases during low-speed reversal. In most cases, the water temperature will drop below 4°C before the water is turned off, and the water supply valve (13) will close.
is closed, after which the set time expires. 4 even after the end
If the temperature is higher than 0°C, keep the water supply valve (13) closed after completion.

After such a small process of "1 drainage/slight dehydration", the process of "r washing" can be completed. Here, detergent is added for 40 seconds. That is, the water supply valve (13) is opened to allow only water to enter the outer tank (1), and then the detergent input valve (7) is also simultaneously opened to allow detergent liquid to enter the outer tank (1). The valve (13) closes.The water supply channel (14) and the detergent input channel (9) close.
) Since the water pressure inside is divided, the detergent solution will not be sprayed strongly from the beginning. Also, if the detergent solution is in the drain (25
), water is supplied to the tun first so that it does not immediately escape. The detergent injection valve (7) opens and closes for 40 seconds,
Subsequently, the water supply valve (13) is opened again until the water level reaches the set level. Steam (19) is also blown out, so that the set temperature is reached.

In this way, when adding detergent, water is simply supplied first, but this water supply method is the same when adding auxiliary agents such as softer and glue. Also, when adding the auxiliary agent, water whose partial pressure has been reduced is initially used.

When the specified "washing" process is completed, "draining/mild dehydration"
and "Rinse 1" starts. From then on, each process progresses, and
In the process of "Zuzugi 4", the glue injection valve (23) is opened for 20 seconds, the steam from the steam source (17) creates a negative pressure in the ejector (20), and the glue is transferred from the bucket (21) through the port (22). to suck it up and put it in. The steam source (17) may be replaced by a pump (24). When adding glue manually, set the glue switch (53) to manual. Then, in this "Rinse 4" process, 10 at the beginning of the process
The buzzer sounds and the water supply is interrupted after a few seconds of water supply. Here, the glue injection J[ is opened for a predetermined period of time to manually introduce the glue. 1 start/stop after valve closing” key (5
When 0) is pressed, water supply is restarted, water is supplied to the set water level, and the process continues. When the process of 1 Rinse 4 is completed, it is dehydrated.

90- Move to the process.

In the 1st dehydration step, you can choose between ``weak dehydration'' and ``strong sclera'', and in the case of ``weak dehydration'', you can select ``drainage/weak dehydration''.
The operation is the same as the δ small stroke, but the weak dehydration rotation time can be set arbitrarily. This ' P 15. Since the ``dehydration'' step in the operating program is ``scleral'', the operation in this case will be explained below.

Following the end of the previous process, the rotating drum (3) rotates at low speed for 3 seconds (rotation) - 2 seconds (pause) once on each side without draining water, then rotates at low speed to the left for another 5 seconds, and then performs a balance rotation. At this point, the vibration switch (33) turns on the vibration (6).
(corresponding to a flat load of Kg or more) is detected. If there is vibration, it returns to low speed rotation and shifts to re-hig/<lance rotation, and vibration is detected. During this time, no water was drained. When there is no vibration or no vibration, drainage starts during balance rotation,
40 seconds after the liquid level switch (low > (28)) is reset, weak dehydration rotation is performed for 30 seconds.In addition, when transitioning from low speed rotation to balance rotation, the dehydration motor (5) is activated as described above. The rotating drum rotates for 2 seconds when the winding is changed.3
) prevents the rotation speed from decreasing.

Vibration switch <33> is 2K during 30 seconds of mild dehydration rotation.
Vibrations corresponding to flat loads of g or more are detected. If there is no vibration, weak dehydration rotation is continued for another 10 seconds, and then the winding of the dehydration motor (5) is changed to a large wire connection.
Scleral water rotation is performed at 0r, p, and m. The time for this scleral water rotation is the set time 'J5.

If there is vibration during mild dehydration rotation, perform low-speed reversal (after inert rotation (15 seconds) with a cycle of 3 seconds (rotation) - 2 seconds (pause)).
Perform 7 cycles of counterclockwise rotation (loosening rotation to remove twists in clothing), followed by 3 cycles of intermittent rotation (distributed rotation to separate clothing) at a low speed of 0.5 seconds (counterclockwise rotation> - 1 second (pause)) Then, after another 3 seconds of low-speed left rotation, it shifts to balance rotation.In this state, when water has already been drained, in order to maintain balance, the rotating drum 3) is rotated for a short period of time, less than one rotation. The rotation has been devised, such as by doing this. When transitioning to balance rotation, there is no load called water this time, so there is no need to consider torque too much. Therefore, at this time, the switch (59) is opened and the switches (61>... are closed, and 0.
After 2 seconds, the switch (60) is closed.

Then, while the Δ connection was formed by the closing of the switches (<59), . . ., the Δ connection state remains transiently before the large connection is achieved by the closing of the switches (61), .

Therefore, the washing motor (4) rotates with low torque and large slip, but the rotation speed is higher than the low speed rotation.
Then, after the switch (60)... is closed, the large connection/balance rotation is performed for the first time. As a result, the 0.2 second pause in the rotating drum (3) is substantially eliminated.

After the balance rotation, a weak dehydration rotation is performed for 10 seconds, and during this time the vibration switch (33) is activated to reduce the permissible flat load to 2K.
The vibration of & is detected, and if there is any vibration, the robot immediately returns to the last cycle of 7 cycles of low-speed reversals (rotation to the left for 3 seconds - body stop for 2 seconds). Then, the cycle shifts to intermittent rotation, balance rotation, and weak dehydration rotation, and if vibration is detected during the weak dehydration rotation, the process returns to the last cycle of low-speed reversal. If there is vibration, repeat this, and if it continues 5 times, it will return to the beginning of low speed reversal (7 cycles). While the vibrations are being detected in this way, if the vibrations disappear, the weak dehydration rotation is performed for a complete 10 seconds, and then the scleral water rotation is performed.

In any case, once the set time has passed after shifting to scleral water rotation, the transition will be inert rotation for 15 seconds, weak dehydration rotation for 3 seconds, and inert rotation for 15 seconds, followed by a slow speed of 3 seconds (rotation) - 2 seconds (pause). Inversion is performed for 30 seconds (6 cycles) and the "dehydration" process is completed. If, for some reason, a vibration corresponding to a constant flattening load occurs during this scleral water rotation, the vibration switch (33) is activated, and the final cycle of the above-mentioned 7-cycle low-speed reversal is immediately activated. ) Return to the rotation (counterclockwise rotation for 3 seconds - 2 seconds pause), intermittent rotation - balance rotation (5 seconds) - mild dehydration rotation (10 seconds)
seconds), and redo the vibration detection during this weak dehydration rotation. Then, the following process is the same as above, and the process shifts to scleral water rotation again.

And this' P15. The buzzer sounds because the driving program has finished.

The intermittent rotation operation in this 1 dehydration process is shown at 23 in Figure 11.
− Illustrated in a flowchart. Here, the counter for the dehydration process is first cleared, this process is displayed, and the contents of the counter are determined. Initially it is 0, so the washing motor (4
) rotate counterclockwise at low speed.

It is stopped after 0.5 seconds and +1 is added to the counter.

When the content of the counter becomes 1, 1 is further added to the counter after 1 second has elapsed to make it 2. Below, if the counter contents are 2 and 4, allow the washing motor (4) to rotate counterclockwise at low speed for 0.5 seconds, as shown in ■ in the figure, and if the counter contents are 3 and 5, as shown in ■ in the figure, allow the washing motor (4) to rotate counterclockwise for 1 second. After this, although it is omitted in this flowchart, when the counter value reaches 6, the washing motor (4) is rotated to the left at low speed for 3 seconds, and when the counter value reaches 7, the balance shown in the figure is reached. A rotation is performed.

Further, the operations of "scleral water" and "mild dehydration" in the "dehydration" process (the intermittent rotation operation has been explained in FIG. 11 and will be omitted) are shown in the flowchart of FIG. 12. Here, first, the counter is cleared, the process is displayed, and the strength or weakness of dehydration is determined. If the setting is weak (24-), it is determined that the counter content is O, and a push-up operation (a) is performed. After waiting for a predetermined time, the contents of the counter are set to 1 and the process returns to point in the figure.

Next, it is determined that the content of the counter is 1, and balance rotation is performed, during which vibration is detected by the vibration switch (33). If there is a vibration corresponding to a load of 6 kg or more, the contents of the counter will be cleared and the value shown in the figure [Yes] will be cleared.
Return to That is, the balance rotation is performed after performing the reversal operation (a) again. Then, vibration is detected, and if vibration is detected, the loosening operation and balance rotation are repeated. No drainage was performed during this time. If there is no constant vibration, the balance rotation will be performed for a predetermined period of time (until 40 seconds after the water is drained and the liquid level switch (low) (28) is reset).
Balance rotation stops. Then, 1 is added to the counter and the process returns to ■ in the figure. Next, since the counter content is 2, rotate the dehydration motor 5) gently (425r, p,
m) for 30 seconds during the small steps of "draining/slight dehydration".
The "dehydration" process is stopped after a preset time. During this time, the content of the counter is 2, so weak dehydration is performed regardless of the result of vibration detection by the vibration switch (33). After this, it coasts for 15 seconds, followed by 3 seconds (
Low speed) - 2 seconds (pause) cycle, alternating left and right for a total of 3
Do this for 0 seconds.

If the dewatering setting is strong, it is determined that the counter value is 0, and a draining operation (b) is performed.

When this has been carried out for a predetermined period of time, the contents of the counter are set to 1 and the process returns to point in the figure. Next, it is determined that the content of the counter is 1, and a balance rotation is performed, during which vibration is detected by the vibration switch (33). If there is vibration corresponding to a flat load of 6 kg or more, the contents of the counter are cleared and returned to the one shown in the figure. Therefore, the behavior is exactly the same as the weak setting. If there is no constant vibration, drain the water and turn the liquid level switch (
Low) (28> Balance rotation stops 40 seconds after it is reset. 1 is added to the contents of the counter and returns to the figure in the figure. Next, it is determined that the contents of the counter are 2, and dehydration is started. The motor (5) is rotated slowly and vibration is detected by the vibration switch (33) during rotation for 30 seconds. Flat load 2
If a vibration corresponding to Kg is detected, 27- stop the weak rotation and let it rotate by inertia for 15 seconds, clear the contents of the counter, and return to ■ in the figure. If no vibration is detected, it rotates slightly for another 10 seconds, cuts off the weak rotation signal, and adds 1 to the counter.

When a certain amount of vibration is detected and the counter is cleared, the loosening operation (c) in the draining state is started, and after the lance rotation, when the counter reaches 2, a 10-second weak dewatering operation is started. Vibration detection is done during rotation. Again, when a certain amount of vibration (corresponding to 2) is detected, the counter is immediately cleared and the process returns to ■ in the diagram, and this time the loosening operation (d) is executed.
The same operation is repeated below. If the counter content is 2 and no vibration is detected during weak dehydration rotation, 1 is added to the counter content. Thus, after the mild dehydration rotation is performed for 10 seconds, the scleral water rotation is transferred. During this rotation of the scleral water, vibrations are not detected unless there is an accident in which mechanical fixing means or the like is damaged, but vibrations are detected by a vibration switch (33) for safety. If vibration is detected here, the operation is repeated from the ripping operation (d).

28- When the scleral water rotation is waited for the set time, after 15 seconds of inertia rotation - 3 seconds of weak dehydration rotation - 15 seconds of inertia rotation,
3 seconds (low-speed left rotation) - 2 seconds (pause) - 3 seconds (low-speed right rotation) The cycle of one weight is completed for a total of 30 seconds.A buzzer sounds when the cycle is completed.

Here, the forward driving (a) and (b) is 3 seconds (low speed left rotation)
-2 seconds (pause) -3 seconds (slow clockwise rotation) -2 seconds (pause)-
5 seconds (low speed left rotation). In addition, for the lifting operation (c), perform 7 cycles of 3 seconds (low speed rotation) - 2 seconds (pause) alternately on the left and right sides, then 0.5
After 3 cycles of 1 second (low speed left rotation) - 1 second (rest), an intermittent rotation of 3 seconds (low speed left rotation) is performed. Furthermore, loosening operation (d) is 7 of loosening operation (c).
Starting from the last cycle of low-speed reversal of the cycle, intermittent rotation is performed.

Furthermore, it will be explained with reference to FIG. 13 that when the washing motor (4) is able to change from the Δ connection to the large connection, an irregular Δ connection temporarily remains. Here, in order to simplify the explanation, 4-pole-2-pole switching will be explained using a 24-slot winding. In the 4-pole Δ connection, three-phase currents flow from U through the → mark, from ■ through the → mark, and from W through the → mark, and as a result, a four-pole magnetic field is generated in the winding as a rotating magnetic field. This is low speed rotation. Next, when the switch (58) is opened and the switch (61) is closed, and the switch (60) is still open, three-phase currents flow in the order of R→T→S. This is △
Although it is a wire connection, a two-pole magnetic field is generated in the winding.

However, as is clear from the drawing, when it flows from R as → mark, it is in slots No. 3 and 4, when it flows from T as → mark, it is in slots No. 19 and 20, and when it flows from S as → mark, it is in slots No. 0 II and 12. The currents cancel each other out, and the rotating magnetic field is small. Therefore, although the slip is large and the torque is small, the rotation of the rotating drum (3) is maintained to some extent because the power is not turned off.

After this, when the switches (60) and (61) are closed,
A large two-pole connection is completed, resulting in balanced rotation.

In addition, the washing motor (4) in the example is 6 tiji and 12
The speed is changed by switching the poles.

In figure vJ6, 'P17. Among wool and thin materials,
This is an operation program for cases that cannot be treated with a dry cleaner, and it omits the steps of ``Pre-wash'' 1 and ``Rinse 1'', and the settings are set in ``P15.'' It has changed.

'P22J is an operating program for cleaning the rotating drum (3).

' P 23J is detergent input valve (7), water supply valve (13),
This is an operation program for manually operating the hot water tank (16), steam valve (18), and drain valve (27) separated from microcomputer control, and the user arbitrarily determines various setting values and executes the program. Therefore, a knob for manual operation is installed on the aircraft. Manual operation includes electrically operating each valve by knob operation. In this operating program, the glue injection valve (23) will also be manually operated.

' P 24. is an operating program when only one "dehydration" process is executed independently.

Settings during each step of the operating program representatively shown in FIG. 6 can be changed and registered as a new operating program. This setting change is performed in response to the "1 function" key (50).

For example, in 'P15J, first press the 1 program' key (
50), press the "Number" key (49) (49) as '15', and then press the L J key (50) to recall 1, and set the r P 15 in the ROM (37) to the first Call the RAM of the human output interface (39). Then,′
L E D (45
)... lights up, and L E corresponding to "prewash"
D (45) flashes, and the time and temperature display tube 42>
, (43) and the indicator light (44)... will display the settings for the 1st prewash stroke. When you press the "Call" key (50), the next stroke L E D (45) will flash, and the next stroke will be displayed. Display tubes (42), (43> and indicator light (44) for stroke setting status
...is displayed by lighting up.

At each step of the operation program that has been recalled in this way, press the ``1 hour'' key (50), press the ``Number'' key (49)...
If you press , the set time of the stroke will be changed to the time (minutes) of the number you pressed.The temperature (°C) will also be changed by the same operation.For the water level (cold/warm), press the ``1'' key. ' is for '°low', '3' is for 'mid-low', '5' is for mid-high, '
7°' corresponds to the height '32-, so you can change it accordingly.

If you press the ``Auxiliary agent'' key (50) and the Glue switch (53) automatically 1 Glue key (50) and then press the ``Number'' key, the time (seconds) for only the pressed number (up to 99 seconds) The detergent injection time can be changed using the "auxiliary agent" key (50). When the glue switch (53) is set manually, 1 When the "glue" key (50) is pressed, water supply interruption for gluing is set. If you press it again, it will not be glued.1
Pressing the “Strength/Weakness” key (50) during the washing/rinsing process °
It changes to ``°weak°'', and if you press it again, it returns to ``°strong'', and if you do this in the ``dehydration'' step, you can change between ``scleral water'' and ``weak dehydration''. ``You can change the time in the mild dehydration mode.''Press the Drain key (50) to select ``Drain/Mild Dehydration''.
In the small stroke of , it only drains water and does not perform weak dehydration, and when you press it again, it returns to normal.

After making changes to one driving program in this way, 'P
IJ~'P14. Specify the address up to by pressing the "Program" key (50), a number, the key (49)... The new driving program will be transferred and memorized. When this process is completed, a buzzer will sound. If you want to immediately execute the new driving program you created, press "Start/Stop" after the buzzer sounds.
Then press the key (50).

``Pl, ~' P The driving program that has been memorized by 14J can be changed by the same operation as above.
If you want to make a small change to "P10", press the "Write" key (50>) after the change operation, and then press rP.
10. is partially corrected and memorized.

Next, a case will be described in which a hot water source (15) is used instead since there is no steam source (17). In this case, the steam switch (
52) to one without steam source. Then, if the water temperature is within ±10°C of the set temperature for each stroke, an error signal will be issued and the stroke can be executed. On the other hand, when setting the water level, it is necessary to set both the cold water level and the hot water level in consideration of the temperature.

For example, if the hot water supply temperature of the hot water source (15) is go'c, 'P15. In order to obtain a water temperature close to 60°C in the "prewash" step, 1 part hot water is supplied to 2 parts hot water.

In this case, the settings are to call the "prewash" process on P15J, set the cold water level to 'i' (low), and set the hot water level to '3' (medium).
Perform the respective change operations. Then, after water has been supplied to the low water level, hot water is supplied from the low water level to the middle and low water levels, and the temperature of the mixed water can be brought to close to 60°C. When using the hot water source (15) as a substitute in this way, the mixing ratio of water and hot water is determined in consideration of the set water level and the water temperature of the four seasons.

If the cold water level and the hot water level are set to the same water level, this operation will leave the water level operated later, that is, if the setting operation is performed from cold water level to hot water level, the set water level of the hot water level will remain.

In addition, water (hot water) is supplied from the side where the water level is set lower.
Then, the side with the higher water level will supply hot water (water) for the remaining water level.
I try to do that. This operation is shown in the flowchart of FIG. Here, first calculate the difference between the set values for the cold water level and the hot water level, and if the set value for the cold water level is set, check whether the level switch for the water level set as the warm water level has tripped, and then trip 35-. Provides hot water up to. When it trips, the hot water valve (1
6) Close, check whether the water level switch at the water level set as the cold water level has tripped, and supply water until it trips. If tripped, the water supply valve (13) is closed.

If the set value for the hot water level is higher, the trip state of the liquid level switch on the cold water level side is checked first and water is supplied first. Then, hot water is supplied.

Furthermore, if the hot water supply temperature (15) is 80°C and the set temperature is 60°C, it will be stored as an operating program unless the cold water level is set incorrectly. During execution, an error message is displayed on the display tubes (42), (43), etc., and the process is interrupted. At the same time, the detergent injection valve (7) is opened, so water is supplied from the small diameter injection path (9) until the cold water level is properly set and the temperature falls within the permissible temperature range (±10°C). There is.

In this embodiment, the RAM (38) is backed up by a battery power source, but the battery power source is omitted and the RAM (3g) is replaced by an E-E-FROM (engineering eraser programmable ROM). > (electrically erasable and writable write/read memory).This E-E-FROM retains the written contents even when the power is turned off, and if you want to change the contents, you can use electrical processing. It is possible to erase written content and write new content.

(F) Effects of the Invention According to the present invention, even if a predetermined vibration is detected after draining water, the water is forcibly dehydrated to some extent and the weight is reduced, so that it is easy to loosen it when it is rotated at a low speed afterwards. Therefore, it is possible to provide a drum-type washing machine that can smoothly shift to the subsequent scleral water rotation, has a short IJ combing operation time, and is highly safe.

[Brief explanation of the drawing]

Fig. 1 is an internal mechanism diagram of a drum-type fully automatic washing machine according to the present invention, Fig. 2 is an explanatory diagram of piping, Fig. 3 is a block diagram, Fig. 4 is an explanatory diagram of the display device, and Fig. 5 is an illustration of the keyboard. Key arrangement diagram, Figure 6 is a program diagram, Figure 7 is a motor electrical connection diagram, Figures 8 to 12 and 14 are flowcharts, and Figure 13 is an explanatory diagram of motor connections and windings. . (1)...outer tank, (3)...rotating drum, (4)...
・・Washing motor, (5)・・Dehydration motor, (27)・
...Drain valve, (33)...Vibration switch. 1 ゛ Figure 7 Figure 8 Figure 9 To the creation of the shim Figure 10 To the 41 paste 'I↓ Kaisho GO-41987 (16)

Claims (1)

[Claims] (1) The rotating drum in the outer tank is rotated at low speed, balanced rotation,
In machines that perform dehydration by increasing speed in the order of weak dehydration rotation and scleral water rotation, we first detect the vibration corresponding to a relatively large single load during balance rotation, and also confirm that this vibration is absent. Under the conditions, it is possible to shift to weak dehydration rotation, and during this weak dehydration rotation, a vibration corresponding to a relatively small unbalanced load is detected secondaryly, and on the condition that there is no such vibration, it is shifted to scleral water rotation. When transitioning to weak dewatering rotation, draining of the outer tank is finished, and if a certain vibration is detected in the secondary detection, the system returns to low speed rotation and balance rotation, and then shifts to weak dehydration rotation again.After the primary detection A drum-type washing machine characterized in that the weak spin rotation is forcibly executed for a certain period of time regardless of the result of secondary detection.