JPS605317B2 - washing machine operation display device - Google Patents

Description

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

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. It was done 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 that includes a pilot lamp circuit in the automatic time switch circuit and indicates the operation of the washing machine,
It 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. 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.

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 such as washing and rinsing. In addition to classifying and displaying the three operation indications of dehydration and dehydration,
The fully automatic washing machine operation display device is configured such that the display elements displayed in this classification are turned off in the order of washing, rinsing, and spin-drying. A further feature of the present invention is a fully automatic washing machine operation display device configured to display the elapsed time of washing, rinsing, and spin-drying operations by blinking the display element.

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 the present 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. Reference numeral 3 denotes a display control section which outputs display signals based on signals from the operation control section 1 and time control section 2, and outputs display signals through drive circuits D, to D3 to operation display lamps WL, R.
Display is performed by driving each of L and DL according to the operating state.

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, the 12 steps are classified and displayed into three operations: washing, rinsing, and spin-drying. In FIG. 2, P, -Pn indicate operating programs of a fully automatic washing machine. FIG. 3 shows an example of a minute method when the reference signal of the time control section is a commercial power source.

The binary counter 11 is composed of two flip-flops.

The quintal or hexadecimal counter 12 is a flippuff.

It consists of three chips and a logic circuit. The quinary counter 13 and the IS Hayabusa 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 waveform of each bit of the 5-ary counter 13 and the 15-ship counter 4 becomes the output shown in FIGS. 5 and 6, respectively, and the output signal is inputted to the circuit shown in FIG. , the output waveform of NAND gate G5 in the same figure ×
is T. When T2 is at the H level, the waveform becomes X in FIG. 7, when T2 is at the H level, the waveform becomes X2 in FIG.

These X, -X4 signals are passed through gates G6 to G8 and operation display signals Wo, Ro, and Do to become a washing display signal 4, a rinse display signal 5, and a dehydration display signal 6. Light up RL and DL respectively.
T, -T4 are signals indicating to the display control unit 3 the respective remaining time during the operation, which is displayed on the display lamps WL, RL, and DL. Now, when the remaining time for each movement is 0 to 1 minute, T
, is the day, T2 is the day when it is 1 to 3 minutes, T3 is the day when it is 3 to 5 minutes, and T4 is the day when it is 5 minutes or more.

The signal of A2 is as shown in Fig. 6 (once per second, according to Fig. 7, two pulses of 0.2 sand, that is, a peak of 0.4 seconds and 1" - 0.4" = The waveform has a valley between 0.6'' and 0.0. On the other hand, the BI signal has a valley for the first 2 seconds between 19 sand and then a peak and a valley, as shown in Figure 6. It is a signal with a period of 19 seconds that repeats alternately.In Figure 4, since the signals A2 and B are processed by the NAND gate G3, the signal is transmitted once every 3 seconds for the first time among the 19 sand gaps, and once every 2 seconds thereafter. An L level signal appears on X3 for 0.4 seconds at a rate of 0.4 seconds.In order for G5's output X3 to become H level, G4's output must be at L level and G3's output level must be at H level. For this purpose,
It is determined what the signal levels of and B should be. According to the NAND gate logic table, it suddenly turns out to be B. It can be seen that the output level of G3 is the same except when both are peak signals. Here, the peaks in FIGS. 5 and 6 are defined as day, and the valleys as L. To summarize the above, 2.
An X3 signal of Minesa/Machi, L for 0.4 seconds, day for 1.6 seconds, and L for 0.4 seconds can be obtained. Assuming that the operation program P shown in FIG. 2 is instructed as the washing program, the operation control unit 1 instructs the water supply operation and at the same time the display signal Wo and time signal T4 become the day. The washing indicator lamp WL is turned on via the inverters N1 and N2, the gates 5 and 6, and the drive circuit D. No special circuit is required for generating the washing display signal Wo in the operation control section 1. It is clear that the washing display signal Wo 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,
Next, a washing operation is started. When time passes and the remaining time of the washing operation reaches 5 to 3 minutes, the indicator lamp goes out for 0.4 seconds every 3 or 2 seconds, as indicated by X3 in FIG. When the remaining time is between 3 and 1 minute, the display lamp WL flashes at the cycle indicated by X2. Similarly, when the time reaches 1 to 0 minutes, the display lamp WL will appear for 1 second as shown by X.
flashes twice. When washing is completed, the operation moves to the next rinsing step, and the rinsing indicator lamp RL lights up on the display. The range of the rinse display includes seven operations such as draining, water supply, rinsing, and spin-drying, as detailed in the rinse contents of the operation classification in Figure 2, so the remaining time indication signal T, ~Operation control unit 2 instead of T4
Depending on the operation control signals Wo, Ro, and Do output from the washing machine, it is possible to display a different response 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 the cycle indicated by X3 is displayed, and the display is continuous during the previous rinsing (3 minutes) water supply operation. In this way, when the washing operation is completed, the indicator lamp WL is turned off, and the indicator lamp RL indicating the operation in progress, for example, the rinsing operation, is lit.
Since the indicator lamp DL is lit when the spin-drying operation is proceeding after the rinsing operation is completed, it is possible to easily know the progress status of the operating program of the washing machine.

Furthermore, by blinking the display lamps WL, RL, and DL, it is possible to easily know that the operating time for washing, rinsing, and spin-drying is running out.

As described above, according to the present invention, it is possible to provide a washing machine operation display device that can easily display the progress of an operation program in a washing machine controlled by a digital control circuit.

[Brief explanation of drawings]

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. 1...Operation control section, 2...Time control section, 3...Display control section, D, ~D3...Drive circuit, WL, RL, DL... ...Indication lamp. Figure 2 Figure 3 Younger brother, Figure 4 Millet Figure 6 Younger brother Box

Claims (1)

[Claims] 1. An operation control unit 1 that outputs an operation instruction signal that instructs the operation that is currently being executed among washing, rinsing, and spin-drying operations;
a time control unit 2 that outputs a time signal instructing the operation time of any one of the operations; and a display that logically calculates the operation instruction signal and the time signal to instruct the operation being executed and the display time of the operation. A display control unit 3 that outputs a signal, and a plurality of display elements WL, RL, and DL that display each of the above operations.
and a drive circuit D_1 that drives the lighting timing and lighting time of these display elements WL, RL, and DL using the display signal.
, D_2, D_3, and the display elements WL, RL,
A washing operation display device characterized in that a series of operation displays of a washing machine based on DL is classified and displayed as each operation display of washing, rinsing, and spin-drying. 2. In the item described in claim 1, washing,
A washing machine operation display device, characterized in that the remaining time of each of rinsing and spin-drying operations is adjusted to the output of a remaining time instruction signal, and a display element blinks and displays the output waveforms of different cycles. 3. In the product described in claim 1, the display elements WL, RL, and DL that are classified and displayed are turned on according to each operation of washing, rinsing, and spin-drying, and the display element at the end of the operation is turned off. A washing machine operation display device comprising: