JPS58138488A - Full automatic washing machine - 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] The invention relates to a fully automatic washing machine.

Conventionally, fully automatic washing machines supply water at the beginning of the washing and rinsing processes, but the user only checks the operation at the first water supply during washing.

Therefore, even if a water supply failure occurs during an intermediate process, unless the user recognizes it, the pulsator will rotate without water unless the subsequent process is stopped, which may lead to motor overload and failure.

In order to prevent failures due to the above-mentioned overload, the invention provides a means to detect a water supply failure, stops the subsequent process unless the water supply is reliably performed, and activates an alarm to notify the user of the failure. This is to provide a notification function.

FIG. 1 is a block diagram showing the configuration of the invention.

262 is a pair of electrodes provided in a part of the water supply route, 1 is a determination unit that determines whether water is flowing in the water supply route, 4 is a load such as a motor, 5 is a return unit, 2 is a control unit, 3 is the timer section. After the load 4 is set to perform the water supply process by the control unit 2, when a certain period of time set by the timer unit 3 has elapsed, a judgment is made to determine whether or not water is being supplied to the lateral side part 1 part 2. The output of section 1 is received, but at this time, judgment section 1 judges whether water is actually being supplied based on the resistance value between electrodes 262, and if it is judged that water is not being supplied, it sends a signal to control section 2 indicating that water supply is defective. Control unit 2 outputs
When it receives this, it will stop the next process.

The notification section 5 is operated to notify the user of the occurrence of a defect. The above is the effect of the present invention.

FIG. 2 shows an embodiment of the invention.

200 is a commercial power source, and 201 is a power holding switch.

When the power hold switch 201 is closed, the transformer 20
2 is energized, and as a result, it is rectified by a full-wave rectifier 203, smoothed by an electrolytic capacitor 205 via a diode 204, further made into a constant voltage by a constant voltage circuit 206, and the current is supplied to a microcombeater 207. When the microcombeater is supplied with power, it energizes the coil 209 of the relay via the driver 208.

When the coil 209 of the relay is energized, the contact 210 of the relay closes, and commercial power is then supplied to the noise suppression system via the contact 210.

211 to 214 are a set of input setting switches for setting a predetermined operation, and each of them is connected to the microconbeater 207 via pull-down resistors 216 to 219.
is input. 211 includes, for example, a fully automatic course that executes all processes from washing to spin-drying, a wash-only course that carries out only washing, a wash and rinse course that carries out washing and rinsing, a rinse and spin-drying course that carries out everything from rinsing to spin-drying, and spin-only course. This is an input setting switch to select the dehydration course to be performed. In this example, the microcon beater 207 counts the number of times 211 is pressed, and selects and stores a course corresponding to the counted number according to instructions from an internal storage section. Reference numerals 212 and 213 are input setting switches that determine washing time, dehydration time, number of rinses, etc. 212 is called a standard course switch, and 213 is called a saving course switch. Both switches are input to the microcon beater 207 via resistors 217 and 218, and which one of them is set to input is stored.

When settings are made using input setting switches 211, 212, and 213, the microcomputer 20 outputs display LEDs 226 to 23 via drivers 221 to 225.
0 is operated to display the input setting switches 211 to 213 corresponding to the stored course. Now 2
26 wants to wash.

Compatible with 227 rinsing, 228 dehydration, 229 standard, and 23° saving. For example, if the fully automatic course and the standard course are selected, LEDs 226 to 228 and 229 are turned on, and if the economical course is selected, LEDs 226 to 228 and 230 are turned on. 23
1 to 235 are current reduction resistors of the LEDs 226 to 230.

When the setting is completed, the micro converter 207
11 to 213 are executed according to the instructions from the storage section stored in advance. If the standard course is set, the LED 226 corresponding to the above-mentioned washing is blinked, and the driver 236 ,
Both identical semiconductor switching elements 2 are connected via a resistor 237.
38 is made conductive, the water supply valve 239 connected thereto is operated, and when the water level reaches a level at which water supply starts, the water level switch 240 closes and the information is input to the microcombeater 207 via the resistor 241. When this information is input, the microcomputer 207 stops energizing the water supply valve 239 according to instructions from the storage unit, and the driver 2
42, 243, resistor 245, 246 and bidirectional semiconductor switching element 24''7, 248 to motor 24.
Control 9. Here, 250 is a capacitor for the motor.

The microcomputer 207 receives and counts the commercial power supply voltage waveform shaped by the resistors 247 and 248 and the TTLAh+D gate 249 as a time reference. The internal timer, which is generated by counting based on this time limit, is compared with the washing time (stored in the storage unit) selected in advance by the input setting switch, and the washing process is performed until they match or the counted number becomes large. When the value of the timer provided inside the microcomputer becomes longer than the pre-selected washing time and stored in the memory section, the microcomputer stops energizing the motor, turns off the LED 226, and completes the washing process.

Perform the rinsing process. When the rinsing process begins, the LED 227 blinks. And to drain the water in the tank.

Driver 243. The drain magnet 264 is controlled through the resistor 246 and the bidirectional semiconductor switching element 253, and draining is completed when the water in the tank is exhausted. When the drainage is completed, the drainage magnet and motor are operated to perform dehydration for a certain period of time, then water is supplied, and the motor is turned off to perform rinsing. The preset time is compared with the value of an internal timer, and if the timer value becomes large, the first rinse is completed.

These operations are performed according to instructions from a storage section provided in the microconheater.

That is, the microcombeater not only stores the progress of washing, rinsing, and dehydration processes, but also stores the progress of each process. For example, if washing is in progress, the progress state is stored to determine whether water is being supplied or washing is desired. If rinsing is in progress, status storage is performed to determine the progress of drainage, dewatering, water supply, and rinsing, and whether it is the first or second rinse. Then, the process is executed while comparing the course selected in advance with the input setting and the added memory. In the standard course, the dehydration process is performed after the above-described series of rinses is repeated twice. In the dehydration process, LP, D2
28 and blinks the LED 229, the drain magnet is controlled to drain the water, and then the motor is also controlled to start the dewatering operation. When the value of the internal timer exceeds the predetermined time, the motor and magnet are de-energized, dehydration is completed, and the hD22s is turned off.

Then, after sounding the buzzer 266 via the driver 255, the power to the relay coil 209 is stopped.

Shut off the stop electricity m. If the water is not drained fL and the water level switch 240 does not open even after a certain period of time has elapsed during draining, it is determined that the drain is defective and further operations are stopped. Further, when the unbalance detection switch 257 for detecting the unbalance of the dewatering cloth is activated, the input is inputted through the resistor 258, and the following operation is stopped as an unexpected lance failure. In the event of poor drainage or imbalance, the buzzer 266 will sound.
At the same time, the voice synthesizing means 258 is operated and the speaker 269 is used to notify the user of a defect every one foot or every foot. 260 is a lid switch that detects opening/closing of the lid, and is inputted to the microconbeater via a resistor 261. Now, the return to the original operation from the defective state is performed based on the information of the lid switch. That is, the necessary operations after the beak defect occurs when the lid is opened and closed are executed. At this time, when the lid was opened to recover from the defective state, the voice synthesis means was activated to notify the contents of the defect, and 14 persons were instructed to conduct an inspection based on the instructions, and the cause of the defect was removed. If you close the rear lid, the original operation will continue. Further, 262 is a pair of electrodes provided in the water supply path, for example as shown in the third column. 263 to 266 are resistors, and 266 is a comparator, which are input to the microcomputer 207. Even though the water supply process has started now, if water is not supplied, the resistance value between the electrodes will be large, and therefore the non-inverting input of the comparator will be higher than the inverting input that provides the comparison basis of the comparator, and its output will be at the resistor 26.
If the output of the comparator remains HIGH even after a certain period of time has passed after the start of the water supply process, the voice synthesis means is operated and the output of the water bottle faucet connected to the water supply route or beyond is activated. Issues a warning to remind you to check opening and closing. Further, a microcomputer stops subsequent processes. The setting input switch 214 is a cut-off switch for stopping the -off operation and cutting off the power supply.
4- Input in the evening. When this switch is pressed, the power supply to the motor water supply valve, drain magnet, etc. is stopped, and a second timer provided in the microconbeater is activated to cut off the power after a certain period of time. 268 is a capacitor that stops the operation of the microcon beater when the power supply of the microconbeater is unstable and constitutes a sector circuit; 269 is a resistor 270 is a capacitor; these are part of the circuit that generates the clock for the microconbeater. It forms part of the

If the input setting switch is changed during current operation, the new course content selected by the input setting switch is stored in the storage section within the microcomputer. Instructions for washing, rinsing, and spin-drying, washing time, number of rinses, and spin-drying time are stored as course data. On the other hand, as mentioned above, the record W inside the microcombinator
HIS also stores the current progress status. When the input setting switch is changed and the course is changed, the new course data is compared with the progress state memory, and the washing, rinsing, and spin-drying steps are compared first, and the steps that have already been performed are ignored. . Then, the results are stored in the memory section (the following execution instructions are given).Also, in the case of washing or dehydration, the newly set time for each wash is compared with the time that has already passed, and the elapsed time is For example, if the new set time is shorter than the elapsed time, the process will proceed to the next step, and if it is longer than the elapsed time, the new set time will be added to the elapsed time. Washing or spin-drying will be performed for a time equal to the difference in time set.

Regarding rinsing, the set number of times of rinsing is compared with the number of times of rinsing in the progressed state, and if the new set number of times is less than the number of times of progress, the process moves to the next step.

Now, when moving to the next process, the progress memory of washing, rinsing, and spin-drying is normally cleared, but when moving to the next process of dehydration during draining and spin-drying, the progress memory and the elapsed time of the timer are cleared. The time is left as data and the process moves on to the dehydration process. Therefore, if you are draining water during the second rinse with the standard settings, if you change it to save, the savings will only be in one rinse, and the memory of the drain time that has already been executed will be cleared. Not done. Therefore, drainage during dehydration is performed only for the remaining time required.

Figure 3 shows an example of a pair of electrodes used for water supply detection.
1 is a water supply path, and 32 and 33 are a pair of electrodes.

As mentioned above, in the case of uninvention, the newly changed settings are not re-executed from the beginning, but are changed in the forward direction as the order progresses, and the execution takes place. This results in significant savings and, as a result, a valid change in accordance with the user's intentions.

It also has a power saving effect.

[Brief explanation of the drawing]

The first example is a block diagram of a fully automatic washing machine according to an embodiment of the invention, FIG. 2 is a circuit diagram of the same, and FIG. 3 is a perspective view of a pair of electrodes used for water supply detection. 1... Judgment Department, 2... Famine Control Department, 3...
...Timer section. 4...Load, 6...Notification section, 65...
...Water supply route, 32.33...Electrode,.

Claims (1)

[Claims] A control @j section that controls the operation of the load, a timer section that gives a reference time to the control j section, a notification section that notifies a defective state, and a judgment section that judges whether or not water is flowing through the water supply route. and when the analysis section determines that water is not flowing through the water supply route even after a certain period of time determined by the timer has elapsed since water supply was started by the control section, the control section is operated. A fully automatic washing machine that activates the alarm and stops further operation.