JPH05263788A - Electric fan - Google Patents

Abstract

PURPOSE:To provide an electric fan which is operated as soon as a room temperature rises after the stop of an air conditioner. CONSTITUTION:When it is detected by means of an illuminance sensor that an illuminator 19 in a room is put out and a room inside has become dark and also it is detected by means of a temperature sensor that the timer of an air conditioner 18 is cut off and a fixed room temperature has risen to more than a predetermined value, the control portion of an electric fan 1 drives a motor for air blowing fan drive and rotates air blowing fans.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan.

[0002]

2. Description of the Related Art Recently, a large number of air conditioners have become widespread in each home. In these homes, the set temperature of the air conditioner is set, for example, at the time of going to bed to eliminate the difficulty of sleeping at night. Is set to a temperature suitable for sleeping, for example, 24 degrees, and a timer sets the operating time of the air conditioner to a time that does not cause overcooling, for example, 2 hours.

[0003]

However, when the air conditioner is operated in this way and goes to sleep, if the air conditioner stops operating after the set time of the timer of the air conditioner, the room temperature gradually rises and it becomes difficult to sleep. was there.

It is an object of the present invention to provide a fan that operates when the room temperature rises after the air conditioner has stopped.

[0005]

According to the present invention, there is provided a blower fan driving electric motor for driving a blower fan, a temperature sensor for detecting a room temperature, an illuminance sensor for detecting a room brightness, and an illuminance sensor. And a control unit for driving and controlling the blower fan driving electric motor when detecting that the room is dark and detecting that the room temperature has risen by a predetermined value or more by the temperature sensor.

[0006]

With this configuration, when the control unit detects that the room has become dark by the illuminance sensor and that the temperature of the air conditioner has expired and the temperature has risen above a predetermined value by the temperature sensor, the control unit turns on the blower fan driving motor. Drive to rotate the blower fan.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side sectional view of an electric fan according to an embodiment of the present invention, in which the electric fan 1 has a head 2
And a neck piece 3 that supports the head 2 in a swingable manner.
And a stand 5 on which a pillar 4 supporting the neck piece 3 is projected.

The head 2 has a blower fan electric motor 6a for blowing air and a vertical swing electric motor 6b.
A blower fan 7 that is detachably mounted on a rotary shaft 7a that protrudes horizontally from the blower fan electric motor 6a; a cover 8 that covers the blower fan driving electric motor 6a and the vertical swinging electric motor 6b; Rear guard 8a
And a front guard 8b which covers the front of the blower fan 7 in connection with the rear guard 8a.

The neck piece 3 pivots the head 2 in the left-right direction by inserting a pivot 9 vertically extending from a blower fan driving motor 6a into an internally formed boss portion 3a for pivoting the head 2. Supports freely. In addition, this neck piece 3
Has a left-right swinging electric motor 6c for swinging the head 2 in the left-right direction via a cam 9a connected to the pivot 9.

On the other hand, the stand 5 holds the neck piece 3 rotatably in the vertical direction by a support shaft 4a pivotally supported by the column 4, and is attached to the wall 10 so that it can be used as a wall fan. Is becoming The stand 5 is also provided with a switch unit, a temperature sensor, an optical sensor, and a microcomputer (not shown).

The switch section is provided with a power switch, a mode changeover switch, an air volume changeover switch, and the like. The mode changeover switch is for switching the operation mode of the fan 1 between a normal mode for normally operating the fan 1 and an automatic operation mode for driving and controlling the fan 1 by a microcomputer. The power switch, the mode switch and the like can be switched manually or by a remote controller.

The temperature sensor detects the temperature in the room,
The detected temperature information about the room temperature is input to the microcomputer at predetermined intervals, and the illuminance sensor inputs the illuminance information about the indoor illuminance to the microcomputer at predetermined intervals.

On the other hand, as shown in FIG.
When the mode changeover switch is switched to the automatic operation mode in, the microcomputer 11 causes the blower fan driving electric motor 6a and the vertical swinging motion based on the temperature information input from the temperature sensor 13 and the illuminance information input from the illuminance sensor 14. The blower fan drive circuit 15 and the up / down swing circuit 1 are provided with drive signals for driving the electric motor 6b and the left / right swinging electric motor 6c (hereinafter referred to as the blower fan driving electric motor 6a, etc.).
6 and the left and right swing circuit 17 (hereinafter, blower fan drive circuit 15
And so on).

Here, after the microcomputer 11 is switched to the automatic operation mode, a timer (not shown) of the air conditioner 18 shown in FIG. 4 which will be described later expires, and the room temperature kept constant for a certain time by the air conditioner 18 is a predetermined temperature. For example, when the temperature rises by 2 degrees or more, it is determined from the temperature information from the temperature sensor 13 that the operation of the air conditioner 18 has stopped.

Further, the microcomputer 11 turns off the lighting fixture 19 shown in FIG. 4 at bedtime, and when the interior of the room kept at a constant brightness by the lighting fixture 19 falls below a predetermined illuminance, the illuminance information from the illuminance sensor 14 is displayed. Has decided that it is currently nighttime.

The microcomputer 11 determines that the night has emptied based on the illuminance information from the illuminance sensor 14 when the interior of the room that was dark at night and gradually becomes brighter and has a predetermined illuminance or more, and activates the timer. Further, for example, the blower fan driving electric motor 6a is operated for only two hours and then stopped.

When the microcomputer 11 determines from the temperature information from the temperature sensor 13 that the operation of the air conditioner 18 has stopped, and from the illuminance information from the illuminance sensor 14 that it is currently nighttime, it drives the blower fan. A drive signal for driving the electric motor 6a and the like is issued to the drive circuit 15 and the like.

Therefore, for example, the room temperature kept constant for a certain time by the air conditioner 18 in the daytime is the air conditioner 1
Even if the microcomputer 11 determines that the air conditioner 18 has stopped due to a signal from the temperature sensor 13, the microcomputer 11 does not input the signal indicating nighttime from the illuminance sensor 14, so that the microcomputer 11 blows air. The drive signal for driving the fan driving electric motor 6a or the like is not issued.

Next, the blowing operation of the thus-configured fan in the automatic operation mode at night will be described with reference to FIG.
This will be described with reference to the flowchart shown in.

In the room equipped with the fan 1 and the air conditioner 18 as shown in FIG. 4, the user sets the temperature of the air conditioner 18 to, for example, 27 degrees before going to bed and sets the timer to, for example, 2 hours. Fan 1 by 19
When the power switch is turned on and the mode switch is switched to the automatic operation mode, the lighting device 19 is turned off and the person goes to bed, the air conditioner 18 operates to keep the room temperature at 27 degrees for 2 hours.

Here, the microcomputer 11 monitors the condition of the room temperature by the temperature sensor 13. However, since the air conditioner 18 is operated and the room temperature is kept at 27 degrees C for two hours after going to bed, the microcomputer 11 is operated by the air conditioner 18. Judge that it is working. Further, the microcomputer 11 determines that it is currently nighttime by the illuminance sensor 14 when the brightness in the room after turning off becomes equal to or lower than a predetermined illuminance (Y in determination 51).

Then, after two hours have passed after going to bed, the timer of the air conditioner 18 expires and the operation of the air conditioner 18 is stopped, so that the room temperature gradually rises and eventually rises more than 2 degrees from the set temperature (Y in judgment 52). Based on the temperature information from the temperature sensor 13, the microcomputer 11 determines that the operation of the air conditioner 18 has stopped.

At this time, since the microcomputer 11 has already determined by the illuminance sensor 14 that it is currently nighttime, the microcomputer 11 outputs a drive signal to the drive circuit 15 or the like, and the blower fan drive motor 6a. Etc. are driven (process 53). As a result, the fan 1 rotates the blower fan 7 to start blowing air as shown in FIG. 4, and swings vertically and horizontally to circulate the air in the room as indicated by the arrow. Can get a cool feeling.

Eventually, the interior of the room, which was dark at night, gradually became brighter and became a predetermined illuminance or more (Y in judgment 54).
Based on the illuminance information from the illuminance sensor 14, the microcomputer 11 determines that the night has passed. Then, for example, a two-hour timer is set only after the dawn until the user wakes up (process 55), and the fan 1 continues to blow air until the two hours elapse (Y at judgment 56). To do.

As described above, by providing the fan 1 with the temperature sensor 13 and the illuminance sensor 14, the night air conditioner 1
When the room temperature rises above a predetermined temperature after 8 is stopped, the fan 1 can start blowing air, and it becomes possible to sleep peacefully without waking up at night.

When the fan 1 blows air directly on the user, and there is a risk that the user's health may be impaired, the blower fan driving electric motor 6a can be rotated normally and reversely, and the microcomputer 11 causes the blower fan only at night. The drive circuit 15 causes the blower fan driving electric motor 6a to rotate in the reverse direction. As a result, the air blown by the fan 1 circulates in the room after hitting the wall 10 to which the fan 1 is once attached, so that the wind becomes soft and the user's health is not impaired.

Further, in the above description, the case where the operation mode of the fan is switched to the automatic operation mode at the time of sleeping at night has been described, but the present invention is not limited to this, and the room is darkened even in the daytime, and the air conditioner is turned on. It goes without saying that the fan can be switched to the automatic operation mode and used when it is operated and goes to sleep.

Further, in the above description, the fan is mounted on the wall as a wall-mounted type, but an ordinary floor-standing type may be used.

[0030]

As described above, according to the present invention, after sleeping by operating the air conditioner, the fan automatically operates when the air conditioner stops and the room temperature rises, so that a comfortable sleep can be taken. ..

[Brief description of drawings]

FIG. 1 is a side sectional view of an electric fan according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a relationship between input and output of a microcomputer of the fan.

FIG. 3 is a flowchart showing a blower operation of the electric fan at night.

FIG. 4 is an explanatory view of the room equipped with an air conditioner and a fan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fan 2 Head 6a Blower fan driving electric motor 7 Blower fan 7 11 Microcomputer 13 Temperature sensor 14 Illuminance sensor 18 Air conditioner

Claims (1)

[Claims] 1. A blower fan driving electric motor for driving a blower fan, a temperature sensor for detecting a room temperature, an illuminance sensor for detecting a room brightness, and a illuminance sensor for detecting that the room is dark. An electric fan, further comprising: a control unit that drives and controls the blower fan driving electric motor when the temperature sensor detects that the room temperature has risen by a predetermined value or more.