JPS61215497A - Electric fan - Google Patents

Abstract

PURPOSE:To ensure conveniences for the user of an electric fan by making the constitution wherein an indicator lamp for 'Sleep' is lit 'ON' and one of time indicator lamps is selectively lit 'ON' concurrently, when the 'Sleep' circuit of the fan is selected. CONSTITUTION:A display panel 2 on the base of an electric fan is provided with a group of indicators comprising LED to display the force of current supply, its rhythm, running time for 'Sleep', etc. When a 'Sleep' mode is selected by a mode selector switch 23, the pattern of current supply is selected and a timer starts concurrently,, even if it is not set. Moreover, LED 16 is lit 'ON' and so kept for 30min. Consequently, the user of an electric fan can feel easy about the selection of the 'Sleep' mode and many conveniences are ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an electric fan, and particularly to a display device that displays the operating status of the electric fan.

(Background of the Invention) Conventionally, as a display device for an electric fan,
As typified by Publication No. 6081, the operating status is one-to-one.
It has an indicator light that displays the information. This display also applies to fans that can obtain a rhythm wind in which the wind strength changes within a certain period or a good night wind in which the wind gradually changes from strong to weak and stops operating after a predetermined period of time. It was only intended to turn on the indicator light.

Therefore, even if the user simply selects a good night setting, the set time is unknown, causing inconvenience to the user.

[Purpose of the invention]

The present invention makes it possible to set a predetermined time even when the timer is not set when the user selects "Sleep", and also uses an indicator light to display "Sleep" and the predetermined time at the same time, making it convenient for the user. It's about getting used to it.

[Summary of the invention]

The present invention is configured so that when a good night is selected, a good night indicator light is turned on and one of the one hour indicator lights is selected and turned on at the same time, making it convenient for the user. It is.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

1st I! I indicates the display panel 2 part arranged on the upper surface of the base 1 of the electric fan shown in the second (!I).

Across the front side and side sides of the display panel 2.

A display group consisting of light emitting diodes (LEDs) is arranged in a straight line. Further, a group of push buttons is also arranged in a straight line parallel to this group of indicator lights.

There are 9 indicator lights from below, such as breeze 1 weak wind 1 strong wind to display the wind strength, rhythm to display the mode, good night, and 30 minutes to display the driving time, 1 hour, 2 hours, 4 hours. Indicator lights are installed.

In addition, the wind strength is arranged from weakest to strongest, and the wind duration is arranged from shortest to longest to suit the user's sensibilities.

The operation buttons are arranged from the bottom according to the function group of the indicator light, such as off, on, air volume, mode, and timer.

The operation button consists of a push button switch. In Fig. 1, 3 is a support.

FIG. 3 is an enlarged plan view of the display section. In this diagram,
11 to 19 are indicator lights consisting of LEDs.

21 to 24 are push buttons.

Reference numeral 21 denotes a push button exclusively used to release the push buttons 22 to 24, which has the same function as a release button of a normal multiple push button switch, or corresponds to a reset button.

22 is the push button for turning on and setting the air volume.Press this button once to turn on the breeze.
The circuit and display will change if you press it twice for weak winds, press it three times for strong winds, and press it four times for light winds.

Reference numeral 23 denotes a mode switching push button, which switches between a rhythm in which the strength of the wind changes within a predetermined period and a sleep mode each time the button is pressed.

The timer push button 24, like the push button 22, is set for 30 minutes the first time, 1 hour the second time, 2 hours the third time, 4 hours the fourth time, and on the fifth time.

Go back to 30 minutes and repeat the following in sequence.

In the above, when you select good night using the mode button 23, the good night ventilation pattern is selected, and at the same time, even if the timer is not set, the 30 minute timer is started by the built-in software timer of the microcomputer, and the 30 minute I, ED16 lights up and displays 30 minutes.

In other words, when you select Good Night, the Good Night display changes to LE.
Obtained by D15 and 30 minute display with LED
16.

Previously, the 15 LEDs displayed only the good night message and no driving time, which caused users to feel uneasy because they could not know the driving time.However, with this configuration, the time can be displayed along with the good night message. This allows you to drive at night with peace of mind.

Furthermore, when driving at night, the shortest time, in this example 30 minutes, is always selected to protect the user from getting cold during sleep, and does not harm the user's health.

If you select Good Night, the wind speed pattern will be as shown in Figure 4.

That is, if the wind speed is selected as strong.

It operates for 20 minutes in strong rhythmic winds, and then intermittently in light winds. If the wind speed is low or light wind is selected, the vehicle is operated for the initial 20 minutes at low wind speed or light wind, as described above.

Intermittent operation is performed for 10 minutes and then stopped.

Incidentally, when the time is set by the timer for one hour or more, the duration of the intermittent operation in the breeze is 50 minutes.

Next, the control circuit will be explained based on FIG.

100 is a general power supply circuit, and a detailed explanation thereof will be omitted.

200 is a microprocessing unit (MPU) having input pins Nα1-14 and output pins &15-28. 300 is an induction motor, 301 is a capacitor, and 302 is a main winding.

303 is an auxiliary winding. A strong wind tap H1, a weak wind tap M, and a light wind tap L are drawn out from the auxiliary winding 303, and the energization mode of each can be changed by FLS. The power terminal of the FLS is connected to the power supply 100, and the gates are configured to be controlled by the output bins of the MPU 200, respectively.

The function of this circuit configuration will be explained next. The push button switch 21 is for resetting the set of push button switches 22 to 24.

When the air volume push button switch 22 is pressed, the output will appear on the output bins 18, 25 and 15, and the 1 indicator light 1 will start operating with a light breeze.
Turn on 1. When this switch 22 is pressed again, the bin 22
and 23. And the output appears on 15, 1 weak wind and indicator light 12
The circuit is established.

Further, when the switch 22 is pressed, an output appears on the bins 20, 21, and 15, and a circuit of 1 weak wind and the indicator light 13 is established. If the switch 22 is pressed further, the state returns to the initially pressed state.

Next, when the mode change push button switch 23 is pressed, the rhythm wind that changes the speed of the motor within a predetermined period is activated by the MPU 2.
Obtained by 00 ROM.

That is, one of the bins 18, 20, 22 is selected and appears on the switch 22, and its output also changes.

At this time, output also appears on bins 23 and 16, and indicator light 1
Turn on 4. The output change mode corresponds to the rhythmic pattern shown in FIG.

When the switch 23 is pressed again, one of the bins 18, 20, 22 selected by the switch 22 and 21
, 25. An output appears at 16, and a good night circuit is formed. At this time, the built-in software timer of the MPU is set to 30 minutes. At the same time, the sleep indicator light and 3
The 0 minute indicator lights up. In other words, the good night display and the time display are displayed at the same time. Furthermore, switch 2
Press 3 to return to the original rhythm style state.

Next, when the timer switch 24 is pressed, the output appears on the bins 25 and 17, and the 1-hour indicator light 17 lights up, as well as lMP.
A one hour timer is set by the software timer of U200. In the same way, when the switch 24 is pressed again, the bin 23
and 15, press switch 24 a third time and bins 21 and 15
The respective outputs appear, and the 2-hour or 4-hour time set and the respective corresponding indicator lights are lit. If you press the switch again, the setting returns to 1 yuan for 1 hour.

In consideration of the case where the switches 21 to 24 are pressed at the same time, the signals from these switches are prioritized, that is, weighted.

The order of priority is switches 21→22→23→24.

The above-mentioned operation and its display are achieved by the processing of MPU 200. In other words, the routine corresponding to the directly selective input signal by operating each of the switches 21 to 24 and the number of times each switch is suppressed are 1MPU.
200 built-in counters are used for comparison, and switching for one hour, etc. is executed.

Note that this is the essential part of this invention. Regarding displaying the sleep driving itself and the time at the same time, MP
This can also be achieved with the simple rotation configuration shown in FIG. 6 without using U.

In other words, a good night indicator light 15 and a 30 minute indicator light 16
are connected in parallel, and when the sleep circuit is set by the switch 23, both indicator lights 15 and 16 are configured to light up.Normally, 30 minutes is not long enough to set by the timer switch 24, so the timer The circuit can be simplified by separating it from the circuit, but this time is also set by a timer, and if it is shared, insert a diode as shown in the figure to prevent the indicator light from lighting up when the timer is set.

In this way, there are concrete means other than microprocessors for displaying both the goodnight message and the time, but in order to display such a large number of displays while also enhancing various other functions, it is necessary to A microprocessor is suitable.

According to the embodiment described above, there are specific effects and advantages as described below.

(b) Since the good night display and the good night time display are displayed at the same time, the user can sleep and drive with peace of mind.

(b) Since the bedtime time is automatically set to the shortest time, there is no need to worry about getting cold during sleep, which is healthy.

(c) The sleep indicator light and the time indicator light are placed adjacent to each other, making it easier for the user to check.

(d) The indicator light is an LED, which consumes less power and has a long life.

〔Effect of the invention〕

As explained above, according to the present invention, when the sleep mode is selected, the sleep driving time is automatically set regardless of the timer operation, and the display lamp displays the sleep mode and the time at the same time. Therefore, the user can safely choose sleep driving and use it according to the environmental conditions.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view mainly showing a display panel provided on the surface of the base, Fig. 2 is a slope view of the electric fan, and Fig. 3 includes an indicator light and operation buttons. A plan view of the display section, Figure 4 is a wind speed pattern diagram for good night, Figure 5
The figure shows a control circuit diagram, and FIG. 6 shows another example of the display circuit. 1...Base, 2...Display panel, 11-19...
・Indicator light, 21-24...Push button (switch), 100
...Power supply circuit, 200...Microprocessor-1
300...Motor. ￥11 Diagram 2nd leap 3rd leap procedure amendment book Shu

Claims (1)

[Scope of Claims] 1. A speed adjustment circuit using tap switching, a sleep circuit that stops the motor after a predetermined time has elapsed, a timer circuit that sets the operating time to a desired time, and the air volume, sleep, and time described above. The device is configured so that when the good night circuit is selected, the good night indicator light is lit, and one of the time indicator lights is selected and lit. Features a fan. 2. The electric fan according to claim 1, wherein the sleep and selected time indicator lights are arranged adjacent to each other. 3. The electric fan according to claim 1, wherein the time indicator light is an indicator light that displays the shortest operating time selected and displayed by a timer.