JPS6317477B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an operation display device suitable for a washing machine controlled by a digital control circuit.

[Conventional technology]

Conventional washing machines are controlled by a timer with a cam, and its operation is displayed by attaching a pointer to the timer shaft to which the cam is attached, and writing an operating program on the panel in accordance with the rotation of the pointer. I was going by. However, when the control device is made into a solid state, there is no time axis as in the conventional case, so it becomes difficult to display the operation.

Furthermore, an operation indicating device for indicating the operation of a washing machine by providing a pilot lamp circuit in an automatic time switch circuit is known from Japanese Utility Model Publication No. 41-22345. However, when this operation indicator device is used in a washing machine that performs one or more rinsing operations between the washing operation and the spin-drying operation, it can be Either the washing, rinsing, or spin-drying operation is being performed because the spin indicator lamp lights up when washing, or the water supply indicator lamp lights up, and the washing indicator lamp lights up while the rinsing operation is in progress. It is not possible to check the progress of the set operating program.

[Problem that the invention seeks to solve]

SUMMARY OF THE INVENTION An object of the present invention is to provide a washing machine operation display device that can easily display the progress of a washing machine operation program in order to solve the above problems.

In addition, in a device that operates a series of operation processes such as washing, rinsing, and spin-drying, multiple operation programs that select and set a single process or a combination of processes can display the results selected by input settings. The purpose of the present invention is to provide a washing machine operation display device that can display the operation of a washing machine.

[Means for solving problems]

The present invention is characterized by an operation control section that outputs an operation instruction signal that instructs the operation in progress among the three operations of washing, rinsing, and spin-drying, and a time that instructs the operation time of any of the three operations. a time control unit that outputs a signal; a display control unit that logically calculates the operation instruction signal and the time signal and outputs a display signal that instructs the operation being executed and the display time of the operation; It is equipped with a plurality of display elements for displaying information, and a drive circuit that controls the lighting timing and lighting time of these display elements using the display signal, and the display element can display a series of operations of the fully automatic washing machine, and the water supply process. The washing operation, which includes washing operations, the rinsing operation, which includes processes such as draining, water supply, and spin-drying, and the spin-driving operation, which includes draining, are classified and displayed. The fully automatic washing machine operation display device is configured to turn on or off in the order of washing, rinsing, and spin-drying so that the operating steps can be identified.

Furthermore, by combining each process corresponding to the above three-part display, the washing time can be calculated for the first full process program from water supply to the buzzer, and second the first full process program from water supply to the final dehydration. A short program that cuts the entire process by about half and rinsing by about half. Thirdly, there is a washing only program that only performs washing after water is supplied. Fourth, rinsing by excluding the third washing only program from the first full process program;
Dehydration program.

Fifth, the operating operation can be divided into three parts, such as a drainage/dewatering program. The purpose can be achieved by configuring the system so that the selection of one of these programs can be recognized by the lighting of the three-part display lamp.

[Effect]

An operation control section that instructs and outputs the execution of operations among the operations that proceed in the order of washing, rinsing, and spin-drying; a time control section that instructs and outputs the operation time of any of the operations; and the operation control section. and a display control unit that outputs a display signal from the time control unit to display the sorting of the operation program and the progress of the execution operation, and each of the operations is a washing operation including a water supply process, drainage, water supply, 3 for rinsing operation including dehydration process and dehydration operation including draining process.
It is divided into three sets of display elements, each consisting of a single display element or a plurality of display elements, and a drive circuit that drives these display elements using output signals from the display control unit. According to the settings of an operation program that combines and operates divided steps of rinsing and spin-drying, the three sets of display elements can be sorted and displayed, and the progress of a series of washing, rinsing and spin-drying operations can be displayed. .

〔Example〕

Hereinafter, this invention will be explained in detail with reference to embodiments shown in the drawings.

FIG. 1 is a block diagram of the overall configuration of this invention. In Fig. 1, 1 and 2 are an operation control unit and a time control unit, respectively, for controlling the fully automatic washing operation, and are used to classify and display the overall operation of the fully automatic washing machine into three categories: washing, rinsing, and spin-drying. It outputs an operation instruction signal and a time signal for displaying the elapsed time during each operation. 3 is a display control section, and operation control section 1
In response to the signals from the time control section 2, a display signal is output, and an operation display lamp is output via the drive circuits _D1 to _D3 .
Display is performed by driving each of WL, RL, and DL according to the operating status.

FIG. 2 shows an example of an operating program for a fully automatic washing machine. The figure shows an example of 12 steps from water supply to buzzer, but in this embodiment, these 12 steps are classified and displayed into three operations: washing, rinsing, and spin-drying. In FIG. 2, P ₁ to P _o indicate operating programs of a fully automatic washing machine.

The first to fifth programs described above correspond to _P1 to _P5 here.

FIG. 3 shows an example of a frequency division method when a commercial power source is used as the reference signal of the time control section. The binary counter 11 is composed of two flip-flops. The quinary or hexadecimal counter 12 is composed of three flip-flops and a logic circuit. The quinary counter 13 and the hexadecimal counter 14 are similarly constructed of flip-flops and logic circuits. Since the specific configuration of each circuit is well known, the explanation will be omitted.

When a counter circuit is constructed so that the output waveforms of each bit of the quinary counter 13 and the hexadecimal counter 14 become the outputs shown in FIGS. 5 and 6, respectively, and the output signals are inputted to the circuit shown in FIG. , the output waveform X of NAND gate _G5 in the figure is _X1 in Figure 7 when _T1 is at H level, and as in Figure 7 when _T2 is at H level.
_Similarly , when T ₃ is H, the waveform becomes X ₃ , and when T ₄ is T, the waveform becomes X ₄ . The signals X ₁ to _{X 4} are passed through gates G ₆ to _{G 8} and operation display signals W ₀ , R ₀ , and D ₀ to become a washing display signal 4, a rinse display signal 5, and a dehydration display signal 6, which are sent to drive circuits D ₁ to Display lamp WL by D ₃ ,
Light up RL and DL respectively. T ₁ to _{T 4} are signals indicating to the display control unit 3 the respective remaining times during the operation, which are displayed by the display lamps WL, RL, and DL.

Now, when the remaining time of each movement is 0 to 1 minute, T ₁ is H,
T ₂ is H for 1 to 3 minutes, T ₃ is H for 3 to 5 minutes,
_T4 becomes H when the time is 5 minutes or more. The signal of A2 is once per second as shown in Figure 5, and according to Figure 7 it is two pulses of 0.2 seconds, or a peak of 0.4 seconds.
Since 1″-0.4″=0.6″, the waveform has a valley of 0.6 seconds.On the other hand, the signal of B1 is as shown in Figure 6.
It is a signal with a 15-second cycle, with a 2-second trough for the first 2 seconds of the 15-second period, and then alternating peaks and troughs. In Figure 4, since the A ₂ and B ₁ signals are processed by the NAND gate G3, the L level signal is output once every 3 seconds for the first time in 15 seconds, and then once every 2 seconds for 0.4 seconds. This is what appears in X ₃ .
In order for G5's output _X3 to become H level, G4
The output level of G3 must be L level and the output level of G3 must be H level, and for this purpose, it is determined what the signal levels of A ₂ and B ₁ should be. According to the logic table of the NAND gate, it can be seen that the output level of G3 is H except when both A ₂ and B ₁ are peak signals. Here, the peaks in FIGS. 5 and 6 are defined as H, and the valleys as L. To summarize the above, a signal of X ₃ is obtained: H for 2.6 seconds, L for 0.4 seconds, H for 1.6 seconds, and L for 0.4 seconds after the start. If the operation program _P1 shown in FIG. 2 is instructed as the washing program, the operation control section 1
When the water supply operation is instructed, the display signal is displayed at the same time.
W ₀ and time signal T ₄ become H. Inverter N1,
The washing indicator lamp WL is turned on via the N2-gates 5, 6-drive circuit _D1 . No special circuit is required for generating the washing display signal W ₀ in the operation control section 1. It is clear that the washing display signal W ₀ can be used as a signal for the washing control section or with a slight change in logic. When the water supply reaches the set water level, the washing operation starts next. Time has passed and the remaining time for washing operation is 5~
At 3 minutes, as shown by X ₃ in Figure 7,
The display lamp goes out for 0.4 seconds once every second or two seconds. When the remaining time is between 3 and 1 minute, the display lamp WL flashes at the cycle indicated by _X2 . Similarly 1
When the time reaches ~0 minutes, the display lamp WL flashes twice per second as indicated by _X1 . When washing is completed, the operation moves to the next rinsing step, and the rinsing indicator lamp RL lights up as well. The range of rinsing display includes drainage, water supply,
Since seven operations such as rinsing and dehydration are included, the operation control signals W ₀ , R ₀ , D ₀ output from the operation control unit 2 instead of the remaining time instruction signals T ₁ to _{T 4}
Accordingly, it is possible to take and display a response different from the washing display. As shown in Figure 2, during the final rinse (1.5 minutes) of the rinsing operation, the display is displayed at a cycle indicated by X ₁ , and during the water supply in the previous step, X ₂
During dehydration, X ₃ is displayed, and during the previous rinsing (3 minutes) water supply operation, the display is continuous.

〔Effect of the invention〕

(1) The entire washing process is divided into three parts: washing, rinsing, and spin-drying, and the progress is displayed, so you can see at a glance where the progress is in the entire process.

(2) The progress display of each display element WL, RL, and DL starts with a continuously lit display, and then changes to a blinking display as time elapses. It's easy to tell if the rinse has just started.

(3) The progress display of each display element WL, RL, DL will blink faster as the remaining time decreases, so you can intuitively know how long it will take to finish washing, rinsing, or spin-drying, even if you do not use the washing machine fully. It's easy to understand and use.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which FIG. 1 is a block diagram of the overall configuration, FIG. 2 is an operation program diagram, FIG. 3 is a block diagram of a part of the time control section, and FIG. A circuit diagram of the display control section, FIGS. 5 and 6 are partial output waveform diagrams of the counter shown in FIG. 3, and FIG. 7 is a display signal waveform diagram. DESCRIPTION OF SYMBOLS 1...Operation control part, 2...Time control part, 3...Display control part, _D1 - _D3 ...Drive circuit, WL, RL, DL...Display lamp.

Claims (1)

[Claims] 1. An operation control unit 1 that instructs and outputs the execution of operations among the operations that proceed in the order of washing, rinsing, and spin-drying; a time control unit 2 that instructs and outputs the operation time of any of the operations; The operation control section 1
and a display control unit 3 which outputs a display signal from the time control unit 2 for displaying the sorting of the operation program and displaying the progress of the execution operation. The display element WL is divided into three parts: a rinsing operation including a dehydration process, and a dehydration operation including a draining process, and correspondingly each display element WL is composed of a single unit or a plurality of units.
RL, DL, and a drive circuit that drives these display elements by output signals from the display control section 3, and according to the settings of an operation program that combines and operates separately instructed washing, rinsing, and spin-drying processes,
The display elements WL, RL, and DL display the classification, and also display the progress of a series of washing, rinsing, and spin-drying operations. A washing machine operation display device characterized in that the display shifts to a blinking display as the remaining time elapses, and the blinking cycle becomes progressively faster as the remaining time decreases.