JPH0515688A - Washing machine - Google Patents

Abstract

PURPOSE:To enable the automatic setting of a washing course by storing the set washing course every time, accumulating the prescribed number of stored courses with weighting to be reduced the opposite order from the last time respectively, and automatically setting the most accumulation to the next course in full automatic washing machine. CONSTITUTION:A data memory 35 is equipped with ten storage areas 1 to 10, and stores ten washing courses for each time as shown in the figure. An arithmetic unit 37 obtains the accumulation with the name of the washing course of the storage areas 1 to 10 of the data memory 35 weighted in opposite order from the course selected before as 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, setting the course with the most accumulation to the next course. For example, at the end of the second time, C and B are one and A is zero so that the accumulation is performed while taking C as five and B as four and A as zero. Therefore, the C course is automatically set to the next course, and the set course is LED lighted by a LED lighting circuit 48.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention provides a user with a material for laundry,
A washing course selected according to how to wash, the degree of dirt, etc. and the number of times of washing are stored, and the washing course for the next washing is automatically set based on the stored washing course. Regarding the machine.

[0002]

2. Description of the Related Art In recent years, fully automatic washing machines have been put into practical use which sequentially and automatically perform a washing step, a rinsing step and a dehydrating step. In such a washing machine, multiple washing courses are prepared in advance to correspond to the material of the laundry, the degree of dirt, etc., and one of the washing courses is automatically set when the power switch of the washing machine is turned on. And is supposed to do laundry. In the past, regarding the technology of setting which course to set automatically as this washing course, the washing course selected at the time of the previous washing is memorized and the previously selected washing course is automatically set at the time of the next washing. Has been proposed (Japanese Patent Laid-Open No. 63-214284).
No.).

[0003]

By the way, in such a conventional washing machine, the washing course that is automatically set prior to the start of the next washing is not always the washing course that the user uses most often. It's normal not to
Even if the laundry course is automatically set, the user often has to switch the laundry course by pressing the switching button, which is a drawback that the automatic setting effect cannot be sufficiently obtained. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a washing machine capable of automatically setting a laundry course by grasping the latest selection tendency of the laundry course by the user. It is in.

[0004]

The washing machine according to the present invention comprises:
Prior to the start of washing, a washing machine that automatically selects and sets one of the plurality of laundry courses set to handle various types of laundry and performs laundry A memory that is sequentially stored and a predetermined number of washing courses stored in the memory are weighted in reverse order from the previously selected washing course, and the cumulative sum of the weights is added. And a means for automatically setting the laundry course obtained by the arithmetic unit as the next laundry course.

[0005]

According to the present invention, each predetermined number of washing courses stored in the memory is weighted in a reverse order from the previously selected washing course, and the sum of the weights is the highest. By automatically setting the larger laundry course, it becomes possible to automatically set the laundry course that largely reflects the latest selection tendency for the laundry course.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings showing the embodiments. FIG. 1 is a schematic front sectional view of a washing machine according to the present invention, in which 1 denotes a frame having a hollow rectangular parallelepiped shape. An opening 3 having an opening / closing lid 2 is provided at the center of the upper portion of the frame 1, and an operating portion 4 as shown in FIG. 2 is provided around the front part of the opening 3, which is shown in FIG. A control system including such a microcomputer 30 is built in.

Inside the frame 1, an outer tub 5 which is a bottomed cylindrical water tub is arranged with its opening facing upward, and a plurality of dehydration holes 6a are formed in the outer wall of the outer tub 5. The bottomed cylindrical inner tub 6 is provided so as to be rotatable about its axis with the opening provided with the balance ring 6b facing upward, and the laundry to be washed is stored in the inner tub 6. It has become so. At the bottom of the inner tank 6, rotary blades 7 for generating a water flow in the inner tank 6 are provided.

Below the outer tub 5, a motor M for rotating the inner tub 6 and the rotary vanes 7 is provided, and the driving force of the motor M is generated through a power transmission mechanism 8 such as a speed reducer. Tank 6
And is transmitted to the rotor 7. A drain port 5a for draining the water in the outer tub 5 out of the machine is provided at the bottom of the outer tub 5. One end of a drain hose 10 provided with a solenoid valve 9 in the middle is connected to the drain port 5a, and the water in the outer tub 5 is connected to the drain hose 10 and this by releasing the solenoid valve 9. It is designed to be discharged to the outside of the machine through the bellows hose 11. The lower end of an air trap 12 for detecting the water level in the outer tub 5 is connected to the side of the bottom of the outer tub 5, and the upper end of the air trap 12 is connected to a water level sensor 13. In addition, 14 in the figure is an overflow port.

FIG. 2 is a schematic plan view of the operation section 4, which includes a start / pause button 15, a washing course switching button 16, a water level setting button 17, a start button 18 for a favorite course and various setting buttons. 19 to 22, a water flow selection button 23, a buzzer 24, etc. are arranged. If the start / pause button 15 is pressed while the washing machine is stopped, the motor M is rotationally driven to start washing, and if this button is pressed during washing, the motor M is stopped and washing is interrupted. In the fully automatic course, normally, after the power switch (not shown) is turned on, pressing the start / pause button 15 automatically starts washing, rinsing, and dehydration.

When the button 16 for changing the washing course is pressed, the six washing courses are defined, that is, the silk / wool course, the blanket course, the silent washing course, the speedy washing course, and the standard, which correspond to the material of the laundry. It is possible to arbitrarily select one from among various washing courses, a washing course when stubborn dirt is attached, and the like.
The water level button 17 can be selected from four types: high, medium, low and small.

The favorite buttons 19 to 22 are provided for the user to set the washing time, the washing time, the number of rinses, the dehydration time, etc., and perform the washing. When performing, the start button 18 is used. The water flow button 23 is for selecting according to the property of the laundry, the washing time, and the like. 16a, 17a, 19a, 20a, 21a, 22a, 23
Each of a is an LED display window.

FIG. 3 is a block diagram showing a control system of the washing machine according to the present invention. In the figure, 30 is a microcomputer that performs various controls in the washing machine. The microcomputer 30 has a data memory 35 for sequentially storing and storing laundry courses, a general-purpose register 36, and arithmetic processing such as binary addition, logical operation, range increase, comparison, and bit processing in order to calculate the laundry course with the most selection times. The operation unit 37 that performs the operation, the carry flag 38 that is set by the carry from the most significant bit when the operation instruction is executed, the operation result is stored, and the
5, input port, output port accumulator 39 for exchanging data between general-purpose registers, etc., input ports 41, 42 and output ports 43, 44, 45, and a system bus 40 for mutually connecting these Is equipped with. 31 is a power supply circuit 31, 32 is a clock oscillation circuit 32, 33 is a reset circuit,
34 is a water level sensor.

The input port 41 is provided with a signal relating to the driving operation of the washing machine from the input key circuit 46 composed of the various operation button keys of the operation section 2, and the input port 42 is turned on and off by the upper lid switch 47. A signal is given. On the other hand, the output port 43 gives a control signal for the LED lighting circuit 48, the output port 44 gives a buzzer circuit 49 ringing signal, and the output port 45 gives a load drive circuit 50 a control signal. ..

The load drive circuit 50 is composed of a bidirectional thyristor or the like, and drives a solenoid valve for supplying water to the outer tank 5 and a drain valve for discharging water, and a motor M.
A motor left rotation circuit for rotating the motor M to the left, a motor right rotation circuit for rotating the motor M to the right, etc. are connected, and a drive signal is given to each drive circuit as described above based on a control signal given from the microcomputer. ing.

FIG. 4 is an explanatory diagram showing the contents stored in the data memory 35 of the microcomputer 30 and the contents calculated by the arithmetic unit 37 based on the contents. The number of times the washing machine has been used from the first time to the twelfth time, and the data memory 35 stores Area (1) ~ (10)
And the laundry course to be automatically set at the time of the next selection obtained by the arithmetic unit 37.

The data memory 35 includes ten storage areas (1)-
Each time the laundry is completed, the laundry course name selected in the laundry is stored in the storage area, and when the next laundry is completed, the laundry course stored in the storage area (1) is provided. The name is moved to the storage area (2), and the laundry course name is stored in the storage area (1). The storage area (1) always stores the newest previous laundry course name. There is.

On the other hand, in the arithmetic unit 37, the washing course names of the storage areas (1) to (10) in the data memory 35 are "5", "4", "3", "3", "2" and "2", respectively. ],
Weights are added like “1” ... to obtain the cumulative sum of the weights, and the washing course with the largest cumulative sum is set as the washing course to be automatically set next time.

When the power switch is turned on for the first use of the washing machine, a preset standard course, eg, washing course A, is automatically set. When the user carries out the washing by the washing course B, the course switching button 16 is pushed to switch to the washing course B and the washing is carried out.

When the first wash is completed, the laundry course name B selected in the wash is stored in the storage area (1). Then, when the power switch of the washing machine is turned on next time, the arithmetic unit 37 calculates the sum of the weights of the washing courses. Since the weight of the laundry course B is "5" and the weight of the other laundry courses is "0", the laundry course B having the largest weight is determined as the next laundry course, and the LED lighting circuit
At 48, the LED corresponding to laundry course B is turned on (Fig. 4
Is represented by a black circle).

When the user selects the washing course C for the second washing, the washing course name C is stored in the storage area (1) and the previous washing course name B is stored in the storage area when the washing is completed. They are stored in (2) respectively. Then, when the power switch of the washing machine is turned on next time, the arithmetic unit 37 calculates the sum of the weights of the washing courses. Since the weight of the laundry course C is “5”, the weight of the laundry course B is “4”, and the weights of the other laundry courses are “0”, the laundry course C having the largest weight is determined as the next laundry course, LED lighting circuit
At 48, the LED corresponding to laundry course C is turned on.

In the same manner, after the tenth washing is performed on the washing course A, the washing course name A is stored in the storage area (1). Then, when the power switch of the washing machine is turned on next time, the arithmetic unit 37 calculates the sum of the weights of the washing courses. Since the cumulative sum of weights of the washing course A is “6”, the cumulative sum of weights of the washing course B is “4”, and the cumulative sum of weights of the washing course C is “13”, the cumulative sum of weights is the largest. The course C is determined as the next washing course, and the LED corresponding to the washing course C is lit by the LED lighting circuit 48.

Next, when the eleventh wash is performed in the wash course A different from the automatically set wash course C, when the wash is completed, the wash course B stored in the storage area (10) is erased. Then, the laundry course names stored in the storage areas (1) to (9) are sequentially transferred to the storage areas (2) to (10), and the current laundry course name A is stored in the storage area (1). .. Then, when the power switch of the washing machine is turned on next time, the arithmetic unit 37 calculates the sum of the weights of the washing courses. The sum of the weights of laundry course A is "10", laundry course B
Since the cumulative sum of weights of “2” and the cumulative sum of weights of washing course C are “11”, the washing course C having the largest cumulative sum of weights is determined as the next washing course, and the LED lighting circuit 48
The LED corresponding to laundry course C will be turned on.

Next, the process of determining the washing course to be automatically set at the next washing in such a washing machine will be described with reference to the flowchart shown in FIG. First, when the power switch is turned on, the microcomputer 30 determines whether or not the washing machine is first used (step S1). In the case of the first use, for example, the washing course A which is the standard course of the fully automatic course is selected, and the LED lighting circuit 48 is turned on to display that the washing course A is selected.
(Step S2).

On the other hand, when the washing machine is not used for the first time, the arithmetic unit 37 selects the most of the selected past washing courses stored in the storage areas (1) to (10) as shown in FIG. A laundry course having a large sum of weights is calculated (step S3). It is judged whether or not there are a plurality of washing courses with the largest cumulative sum of weights (whether there is one or a plurality of washing courses with the largest cumulative sum of weights) (step S4). If there are multiple laundry courses, the last selected laundry course among these laundry courses should be prioritized as the next laundry course (step S5), and then the LED corresponding to the selected laundry course should be turned on. The LED lighting circuit 48 is driven (step S6), and the user determines whether or not the course to be washed is different from the automatically set course (step S7). After switching the laundry course by pressing (step S8) and selecting the laundry course to be selected by the user, the start / pause button 15
Press (step S9). After that, the washing is automatically performed (step S11), and when the washing is completed, the used washing course is stored in the storage area (1) (step S12).

In the above-described embodiment, the storage area in the data memory 35 stores the washing courses for 10 times (1) to (10), but the storage area is not particularly limited to this. Of course, may be set arbitrarily.

[0026]

As described above, in the washing machine according to the present invention, the washing course is stored in the memory, and the predetermined number of washing courses are weighted in reverse from the previous washing course. Since the cumulative sum of weights for each laundry course is calculated and the laundry course with the largest cumulative weight is automatically set as the next laundry course, the laundry course that strongly reflects the user's recent living condition is automatically set. Will be done,
The present invention has excellent effects such that the number of times the user changes the laundry course to the automatically set laundry course is further reduced.

[Brief description of drawings]

FIG. 1 is a schematic front sectional view of a washing machine according to the present invention.

FIG. 2 is a schematic plan view of an operation unit.

FIG. 3 is a block diagram showing a control system of an operation unit.

FIG. 4 is an explanatory diagram showing a stored content of a selected course in a memory and a manner of determining a laundry course with a maximum number of selections.

FIG. 5 is a flowchart showing an automatic setting process of a washing course in the washing machine according to the present invention.

[Explanation of symbols]

 1 frame 2 top lid 3 opening 4 operating part 5 outer tank 6 inner tank 7 rotor 15 start / pause button 16 course switching button 35 data memory 36 general-purpose register 37 arithmetic unit 40 system bus 41, 42 input port 43, 44,45 output ports

Claims (1)

Claims: 1. Laundry prior to the start of washing, in which one of a plurality of washing courses determined to correspond to various kinds of laundry is automatically selected and set for washing. In the machine
With respect to each of the memory for sequentially storing the set laundry course for each laundry and the predetermined number of laundry courses stored in the memory, the laundry course becomes smaller in the reverse order from the previously selected laundry course. A washing machine comprising: a calculation unit for weighting and obtaining a washing course having the largest cumulative sum of weights; and a unit for automatically setting the washing course obtained by the calculation unit as the next washing course. ..