JPS63106697A - Electrical apparatus - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an electrical appliance equipped with a display device that displays operating time.

(Prior Art) In electrical equipment such as washing machines, a plurality of light emitting elements are provided on the display panel in order to display the operating time of washing, dehydration, etc., and each of these light emitting elements is selectively turned on. There was one that allowed the driving time to be displayed in multiple stages at intervals of several minutes. However, this system is inconvenient because it cannot display the driving time in detail, for example, in 1 minute t11. This inconvenience can be solved by increasing the number of light emitting elements, but this increases the number of parts and increases the number of output ports for the microcomputer that controls the lighting of each of the 11 light emitting elements, resulting in higher costs. There were drawbacks.

There have also been devices that use digital displays to display operating time in detail, but digital displays are more expensive than the light-emitting elements mentioned above, and require a decoder circuit to drive the digital display. A new one was needed, and the cost was high.

(Problems to be Solved by the Invention) As mentioned above, in the past, in order to display the operating time in detail, a large number of light emitting elements or a digital display were used, which resulted in high costs. Ta.

The present invention aims to solve these problems,
Therefore, the objective is to provide an electrical device that can display operating time in detail while keeping manufacturing costs low.

[Structure of the Invention] (Means for Solving the Problems) One of the electrical appliances of the present invention includes a display device for displaying operating time, in which the display device is composed of a plurality of light emitting elements arranged in a row. and a lighting control circuit that selectively turns on each light emitting element to display the operating time in binary notation, with each light emitting element representing one bit.

(Function) Each of the plurality of light emitting elements arranged in a row is regarded as 1 bit, and 2
Since the operating time is displayed in the base system, if the number of light emitting elements is n, there are (2 minus - 1) ways of displaying the time (O
), and it is possible to display detailed time similar to a digital display using a small number of light emitting elements.

(Example) Hereinafter, an example in which the present invention is applied to a washing machine will be described based on the drawings. First, in Figure 5 showing the overall configuration, 1
For example, this is a two-tub type washing machine body, and although not shown, a washing tub and a dehydrating tub are installed inside the machine, and the "-" side of the volume is the lid 2.
It is opened and closed by 3.

Reference numeral 4 denotes an operation box erected at the rear of the upper end of the washing machine main body 1, and the configuration of an operation panel 5 provided on the front side of the operation box will be explained based on FIG. 1. 6 is a power switch, 7 is a drain switch lever knob that switches a drain valve (not shown), 8 is a water level adjustment lever knob that adjusts the water level in the washing tub, 9 is a start switch that starts the spin-drying operation, and 10 is a knob A start switch 11 is used to start washing and rinsing operations, and a water flow set switch 11 is a water flow set switch that switches the water flow in the washing tub into three stages.
By selectively turning on the light according to the switching of 1,
Displays water flow status. Reference numerals 13 and 14 are addition and subtraction keys for setting washing and rinsing operating times.Each time each key 13 or 14 is pressed, 1 minute is added or subtracted from the set time. The time can be set in 1-minute increments within the range of minutes. Above each of these keys 13, 14, for example, four light emitting elements 15 are arranged in a horizontal row for displaying washing/rinsing operation time. Numerals 16 and 17 are addition and subtraction keys for setting the dehydration operation time. Each press of each key 16 and 17 adds or subtracts 1 minute to the set time. The time can be set in 1 minute increments within the range. Above each of these keys 16 and 17, there are, for example, three light emitting elements 1 for displaying the dehydration operation time.
8 are arranged in a horizontal row. On the other hand, inside the operation box 4,
In addition to operational control, a microcomputer 19 (see FIG. 2) that also functions as a lighting control circuit for controlling the lighting of each of the light emitting elements 12, 15. A light-emitting cord 15 for displaying washing/rinsing operation time is connected through 20, and light-emitting elements 18 for displaying dehydration operation time are connected to the output ports co to c3 through drive circuits 20, respectively. The microcomputer 19 selectively turns on each light emitting element 15.
Each driving time is displayed in binary notation, with each of the 18 bits being 1 bit. The display mode in this case is shown in Figures 3 and 4 (in each figure, the black circle is lit,
(The white circle indicates the off state), each light emitting element 15.18 corresponds to each bit in the binary representation, and each one minute from the right side,
2 minutes, 4 minutes, and 8 minutes are shown. The operating time is then displayed by the sum of the times corresponding to the lighted light emitting cords 15 and 18. For example, if the light emitting elements for 1 minute and 4 minutes are lit, it means that 1+4=5 (minutes). In this case, since four light emitting elements 15 are used, the washing/rinsing operation time is 15 minutes in 1 minute increments within the range of 1 minute to 15 minutes, as shown in FIG.
Since three light-emitting elements 18 are used, the dehydration operation time can be displayed in 1-minute increments within the range of 1 minute to 7 minutes, as shown in Figure 4.
It is possible to display the street time. Generally, if n light emitting elements are provided, time can be displayed in (2''-1) ways in 1-minute increments within the range from 1 minute to (2''-1) minutes. A display device 21 is comprised of the light-emitting cable 15.degree. 18 described above, the microcomputer 19, and the like.

Next, the operation of the "-" construction area will be explained based on FIG. First, when the power switch 6 is turned on, the microcomputer 19 goes through an initialization routine and enters a state of waiting for human input from each switch. After this, for example, if the addition key 13 for washing and rinsing is pressed, the set time is added by 1 minute each time it is suppressed for 1 period (however, 1 minute is added to the set time after 15 minutes).
minutes), and the time after addition is displayed in binary using four light emitting elements 15. If the display time exceeds the desired set time, press the subtraction key 14 to reduce it by 1.
Each time the button is pressed, the set time is subtracted by 1 minute (however, after 1 minute, it returns to 15 minutes), so that the desired set time can be quickly set.

The dewatering operation time can also be set in exactly the same manner using the addition key 16 and the subtraction key 17.

After setting the driving time in this way, by pressing the start switch of the desired driving course, the driving will be executed for the set time.

”-According to the embodiment, a plurality of light emitting elements 1 arranged in a row
Since the operating time is displayed in binary notation with each of 5.18 as 1 bit, the light emitting element 15.18
If the number is n, it is possible to display the time in (2"-1) ways (not including 0), and it is possible to display the time in the same way as a digital display with a small number of light emitting elements. Therefore, the number of light emitting elements 15 and 18, the number of microcombinations and the output ports of the user 19 can be reduced, and a relatively expensive digital display can be omitted.
Manufacturing costs can be kept low.

The scope of application of the present invention is not limited to washing machines as in the above embodiments, but can be similarly applied to, for example, dryers as long as the operating time is displayed on any electrical appliance.

[Effect of the invention] As is clear from the above description, the present invention provides
(Since the operating time is displayed in binary with each of the several light emitting elements being 1 bit, it is possible to display the time in the same way as a digital display with a small number of light emitting elements. This has an excellent effect in that the operating time can be displayed in detail while keeping costs low.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of the operation panel, FIG. 2 is an electric circuit diagram of the display device,
Fig. 3 is an explanatory diagram showing the display mode of the washing/rinsing operation time, Fig. 4 is an explanatory diagram showing the display mode of the dehydration operation time, and Fig. 5 is an explanatory diagram showing the display mode of the washing/rinsing operation time.
The figure is an overall perspective view, and FIG. 6 is a diagram showing a control flowchart. In the drawing, 5 is an operation panel, 13 is an addition key, 14 is a subtraction key, 15 is a light emitting element, 16 is an addition key, and 17 18 is a subtraction key, 18 is a light emitting element, 19 is a microcomputer (lighting control circuit), and 21 is a display device. Applicant: Higashi Shiba Co., Ltd. 1 Figure 1/42 Figure 0 0 @ 0---2% O@
O---2 minutes 00 ・ ・-1---3 minutes 0
・ ・ ---1-3 minutes 0 ・ 00-m--4 minutes
・ ○ O----4 minutes 0 ・ ○ ・-1--
5 minutes ・ 0 ・ --1-5 minutes O ・ 0
---6 minutes ・ ・ O-1 --6 minutes ○
・ ・ ・−1−−7 minutes ・ ・ ・ −
-1-7 minutes・o o o----B minutes・○ ・ ・-1-11 minutes・ ・ O0---12 minutes・ ・ ○ ・----13 minutes・ ・ ・ ○−- ---14 minutes ・ ・ ・ ・---15 minutes Figure 3 Figure 5

Claims (1)

[Claims] 1. In a device equipped with a display device that displays the operating time, the display device includes a plurality of light emitting elements arranged in a row, and each of these light emitting elements is used as one bit to display the operating time in binary notation. 1. An electrical device comprising a lighting control circuit that selectively lights up each light emitting element in order to