JPH0354600B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a washing machine control device that allows the user to reserve a time to finish washing.

(B) Prior art This type of washing machine is disclosed in Japanese Patent Application Laid-Open No. 56-45696, and if a finish time is reserved, the current time can be compared with the time obtained by subtracting the operating time from the finish time. The system then starts operation when a match is found.

(c) Problems to be solved by the invention However, this reserved operation is the same as normal operation without reservation, and as the reversal cycle of washing and rinsing becomes shorter as in recent years, the motor (pulsator) has to be operated frequently. The rising sound became harsh.

The present invention automatically changes the reversal cycle of normal operation and the reversal cycle of reserved operation, and during reserved operation, the motor rests longer than the reversal cycle of normal operation, thereby ensuring a good night's sleep as much as possible. be.

(d) Means for Solving the Problem The solution according to the present invention includes an operation control unit that controls the washing operation consisting of washing, rinsing, and spin-drying steps, and a control unit that controls whether the washing operation is normal or a scheduled operation in which the washing end time is reserved. an operation discrimination unit that determines the normal operation, and when the discrimination result is normal operation, selects the normal reversal cycle in the washing and rinsing processes, and when it is scheduled operation, selects the scheduled reversal cycle that has a longer pause time than the normal reversal cycle in the relevant process. This configuration includes an inverted cycle selection section that selects a cycle.

(E) Effect If there is an operation to reserve the end time, the operation discrimination section discriminates this, and upon receiving this discrimination result, the reversal cycle selection section selects a reservation with a long downtime during the washing and rinsing processes during a series of operations. Select the inversion cycle,
The operation control section causes the selected reversal cycle to be executed in this stroke. For this reason, the rising noise of the motor that drives the pulsator in reverse is generated at sufficient intervals, making it less likely to be harsh on the ears of the sleeper.

(f) Example To explain based on the drawings, in Fig. 3,
Water supply, soaking if necessary, washing, draining, dehydrating, water supply, rinsing, draining, dehydrating, water supply, rinsing, draining,
A fully automatic washing machine that sequentially performs a series of processes called final dehydration has an outer tank 2 and a porous washing/dehydration tank 3 inside the machine frame 1. The inner bottom of the dehydration tank 3 has a large diameter chevron. A pulsator 4 is installed. A motor 5 for intermittently reversing the pulsator 4 at an appropriate low speed (for example, 180 rpm) is mounted on the outer bottom surface of the outer tank 2.
A pulley belt 6 and a speed reduction mechanism 7 are attached. Further, a drainage channel 9 is connected to the outer tank 2 via a drainage electromagnetic valve 8 in the middle. Water is supplied by a water supply channel 11 via a water supply solenoid valve 10 midway. A control device including a microcomputer (hereinafter referred to as microcomputer) 13 for controlling the entire fully automatic washing operation is built into the control box 12 at the top of the machine frame 1, and its operation surface 14 is shown in FIG. As shown in the figure, operation keys and indicator lights (LEDs) are provided. The microcomputer 13 has ROM, RAM, CPU,
It is a general type consisting of I/O, and as shown in Fig. 1, a clock 15, a power supply circuit 16, a reset circuit 17, a water level sensor 18, and a clock signal generating means 19 are connected, and a start key for a standard course is connected. 20,
Shortened course start key 21, favorite course start key 22, reservation key 23, time key 2
4. Time setting knob 25, water level and flow for each stroke,
Input from the number of times and time change keys 26, digital time display 27, change indicator light 28 such as LED, etc.
..., course designation indicator lights 36, 36, buzzer 29,
It is output to the drive circuit 30 of each load.

As shown in FIG. 1, the microcomputer 13 includes a driving determination unit 31, a current time counter 32, a driving control unit 33, a reversal cycle selection unit 34, a reservation content storage unit 35, a reservation course determination unit 37, It includes a stroke timer 38, a remaining time determination section 39, a reversal cycle designation section 40, a drainage time extension section 41, a time subtraction section 42, a time comparison section 43, and a reservation abnormality control section 44.

Next, the operation will be explained based on the flowchart of FIG.
displays the contents of the current time counter 32 as is, and here, if the start key 20 is operated, the standard course is selected, if the start key 21 is operated, the shortened course is selected, and after the change key 26 is operated, the start key 22 is selected. If you operate , each changed course is automatically operated by the operation control section 33 . Standard courses and shortened courses are stored in ROM in advance.
The modified course is a modified version of the called standard course, and is executed after each program is moved to RAM.

When the normal operation is determined by the determining section 31, the reversing cycle selecting section 34 selects cycle A shown in the time chart of FIG. 5A as the reversing cycle for each step of washing and rinsing. This reversal cycle is completed during the 1.1 second left and right rotation time.
There is a pause time of 0.5 seconds.

Next, reservation of the driving end time is made by specifying the reservation mode by operating the reservation key 23, and is determined by the determination unit 31. In this mode, if a reservation has already been made, the reservation time is displayed on the display 27, and the end time is set while looking at the display 27 using the time setting knob 25, which can be freely rotated left and right. Then, the user selects a desired course by operating one of the start keys 20, 21, or selects a favorite course by operating the change keys 26. Further, if a standard course or a shortened course has been previously reserved and this course is to be changed using the change keys 26, the reservation will be made with the changes made by operating the change keys 26. The end time and course (changed course if necessary) have now been reserved, and are stored in the reservation content storage section 35, and the display on the display 27 disappears. Course designation indicator lights (LEDs) 36, 36 provided near the start keys 20, 21 light up to display the reserved course only when the course is reserved, including a change operation using the change keys 26.... An indicator light (LED) 50 is provided in the vicinity of the display 27, which lights up to indicate a reservation has been made along with text, and this indicator light flashes in the reservation mode until the reservation is completed to prompt the user to make a reservation.

When the user wants to know the reserved time after the reservation is completed, the reservation key 23 is operated, and the display 27 displays the information for 5 seconds.

When setting the current time, the mode is changed by operating the time key 24, and the time is adjusted by the time setting knob 25 while looking at the time displayed on the display 27.

When a power switch (not shown) is turned off, the reserved time is erased, but a signal can be output from the clock signal generating means 19 to the counter 32 that clocks the current time.

Then, the microcomputer 13 uses the reserved course determining unit 37 to determine whether the reserved course is a favorite course or another course based on whether the course designation indicator lights 36, 36 are turned on or off. . When a favorite course is reserved, the reversal cycle selection section 34 selects cycle I shown in the time chart of FIG. Select cycle RO shown in the time chart in figure RO. The cycle shown in Fig. 5B changes the pause time from 0.5 seconds to 6 seconds, and automatically extends the washing and rinsing process times, but the ON-OFF interval is extended and the motor starts up. Since there is almost no resistance due to the residual water flow, frequent and loud motor start-up noise can be suppressed. The extended travel time is automatically set in the travel timer 38, for example, 30 minutes instead of 12 minutes and 15 minutes instead of 60 minutes.

When you reserve your favorite course, the normal reversal cycle is executed at a time when people are already awake, so that you do not disturb the neighbors by frequent ON-OFF operations. This is so that laundry can be done in the driving time.

The reversal cycle during reserved operation shown in the time chart of FIG. 5(b) can be changed to that shown in FIG. 5(c). The reversal cycle shown in the time chart in Fig.
It changes in that it continues several times (multiple times), and uses the slight remaining same direction water to encourage the laundry to turn upside down and compensate for the decrease in the turning force on the laundry due to the long pause time. It is uno.

The progress status of each stroke during operation is compared and determined by the remaining time determination section 39 from the contents of the stroke timer 38.
The remaining time of 1 minute and the remaining time of 30 seconds are output to the inversion cycle designation section 40. This reversal cycle designation section 40
specifies the reversal cycle 2 shown in the time chart in FIG. 5D when the remaining time is 1 minute, and the reversal cycle H shown in the time chart in FIG. 5E when the remaining time is 30 seconds. This reversal cycle ni, ho occurs every very short time.
It repeats ON and OFF, loosens the laundry before the intermediate spin and final spin, and suppresses the occurrence of abnormal vibrations during spin.

If the operation determining unit 31 determines a reserved operation and the reserved course determining unit 37 determines a course other than the favorite course, the time of the draining process executed after washing and rinsing is determined by the draining time extension unit 41. Therefore, the usual one minute time is extended to two minutes. This is to reduce the amount of water that is splashed during centrifugal spin-drying by thoroughly draining the water contained in the laundry before spin-drying, and to reduce the noise of the splashed water colliding with the tank, thereby reducing noise.

Next, the function of the reservation abnormality control section 44 that checks whether the reservation operation is appropriate will be explained. When the start key of any course is operated in the reservation mode, the reservation contents of the end time are subtracted from the contents of the current time counter 32 by the time subtraction section 42. Then, the time comparison unit 43 compares this subtracted value (time) T ₁ with the total driving time T ₀ of the reserved course that will probably be executed. If the subtracted value (time) T ₁ is now longer than the total driving time T ₀ , the subtracted time determined by the subtraction is stored as the driving start time in the reservation contents storage unit 35 along with other reservation contents,
End your reservation.

However, if the subtraction value (time) _T1 is short, this means that the current time has already passed the operation start time, and the reservation abnormality control unit 44 displays "E" on the display 27, indicating that the reservation is abnormal. is displayed and the buzzer 29 is activated for a predetermined period of time. This abnormality display (notification) is terminated by operating the stop key 45, and by operating this key, the reservation contents are erased and the system enters a state of waiting for key operation.

In this way, the reserved operation has been checked and completed, and the operation control unit 33 executes normal operation from water supply, or executes the reserved operation at the start time, depending on the settings and specifications in each part, and the contents of the counter and timer. .

(g) Effects of the invention According to the present invention, when executing reserved operation,
The pause time during the reversal cycle is automatically made longer than that during normal operation, so the motor (pulsator)
The washing machine can be made easier to use without causing any complaints from the neighbors, since the noise of the washing machine becomes less busy and can be suppressed due to the small resistance of the water flow.

[Brief explanation of drawings]

Fig. 1 is a control circuit diagram of the device of the present invention, Fig. 2 is a front view of the operation panel, Fig. 3 is a sectional view of the washing machine, Fig. 4 A, B, and C are flowcharts for explaining the operation. Figure 5 A, B, C, D, and H are time charts of the reversal cycle. 5...Motor, 13...Microcomputer, 20, 21, 2
2...Start key, 23...Reservation key, 25...Time setting knob, 27...Digital time display, 31
...Driving discrimination unit, 32...Current time counter, 33...
Operation control section, 34... Reversal cycle selection section.

Claims (1)

[Claims] 1. An operation control unit that controls the washing operation consisting of washing, rinsing, and spin-drying processes, an operation discrimination unit that discriminates between normal operation and reserved operation with a reserved washing end time, and when the discrimination result is normal operation, the above A washing machine control device comprising a reversing cycle selection unit that selects a normal reversing cycle in washing and rinsing processes, and selects a reserved reversing cycle with a longer pause time than the normal reversing cycle in the scheduled operation when the process is scheduled. .