JPH0663661B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention detects infrared rays radiated from a heat source in a room to detect a temperature distribution in the room and accordingly eliminates temperature unevenness in the room. The present invention relates to an air conditioner that blows air.

[Conventional technology]

Conventionally, in an air conditioner, generally, the air blowing direction is uniquely determined, such as upward during cooling, and downward during heating, and when changing the air blowing direction, it is manually operated by a remote control device or the like. It is supposed to be operated.

[Problems to be Solved by the Invention]

However, in that case, there is a problem in that the temperature of the interior walls and the periphery of the ceiling is uneven due to the effect of sunlight on the outer wall and roof of the house, and the comfortable space in the room is reduced.

[Means for Solving the Problems]

The air conditioning apparatus according to the present invention, in order to solve the above problems, in the air conditioning apparatus having the adjusting function of the air volume, the air direction and the blowing temperature, in order to detect the temperature distribution in the room, infrared rays from each part of the room Infrared detecting means for detecting radiation, and when the infrared detecting means detects temperature unevenness, wind direction control is performed to preferentially blow air to a part where temperature unevenness occurs. And a display means for displaying the temperature unevenness to the user when the temperature unevenness is detected by the infrared detecting means. There is.

[Action]

According to the above configuration, the infrared detecting means detects the temperature distribution in the room, and the wind direction controlling means preferentially sends the air to the high temperature portion during cooling, and to the low temperature portion during heating. As a result, the temperature unevenness in the room is eliminated and the entire room is made a comfortable space.

Further, by displaying the temperature distribution in the room detected by the infrared detection means on the display means, the user can recognize the location of the temperature unevenness in the room. As a result, if the display means displays that temperature unevenness is occurring near the window, for example, the user recognizes that the temperature unevenness is caused by sunlight coming in through the window. Therefore, it is possible to eliminate the temperature unevenness with less energy consumption by taking measures such as closing the curtain to prevent sunlight from entering through the window.

[Embodiment 1] The following will describe one embodiment of the present invention with reference to FIGS. 1 to 5.

As shown in FIG. 1, the air conditioner includes a main control unit 1 including a microcomputer and the like, and the main control unit 1 uses an infrared temperature detection device as an infrared detection unit that detects infrared radiation from each part in the room. The temperature distribution in the room is detected based on the signal from 2, and the presence or absence of people in the room,
It is designed to detect the location of people. Further, the room temperature is input to the main controller 1 from the room temperature detector 3.

The main controller 1 compares the temperature distribution in the room, the room temperature, the target value of the room temperature set by the user, etc., and performs processing such as calculation,
In addition, it is determined whether or not there is a person in the room, and if there is a person, the position of the person is determined. Based on the results, the main control unit 1 causes the wind direction control unit 4 serving as the wind direction control unit to control the wind direction adjusting device 5 that determines the air blowing direction, and the air volume control unit 6 controls the indoor blower 7. The rotation speed is controlled to adjust the air volume, and the outdoor unit control unit 8
Thus, the capacity of the outdoor compressor 9 is controlled to adjust the blowing temperature of the indoor blower 7.

Further, the main control unit 1 is adapted to display a region where temperature unevenness occurs, a position where a person is present, etc. on the display unit 10 as a display means. As a result, the user can recognize the part where the temperature unevenness occurs in the room. As shown in FIG. 3, the display unit 10 is, for example, configured by vertically and horizontally arranging a plurality of LEDs (light emitting diodes) corresponding to the respective units in the room. The LED corresponding to is turned on.

As shown in FIG. 2, the infrared sensor 11 in the infrared temperature detecting device 2 is attached to the main body 13 of the indoor blower 7 via the drive unit 12. A lens 14 is provided in front of the infrared sensor 11, and the lens 14 is covered with a lens cover 15. When the infrared sensor 11 is driven by the drive unit 12, the infrared sensor 11
Infrared rays radiated from various parts in the room, especially from a high temperature part such as a ceiling or a wall, or infrared rays radiated from a human body are incident through the lens cover 15 and the lens 14 as indicated by arrows, and are converted into electric signals. Is input to the main control unit 1, and the main control unit 1 detects the temperature distribution in the room.

As shown in FIG. 4, the wind direction adjusting device 5 includes, for example, a vertical louver 16 and two pairs of horizontal louvers 17, 18 ...
And a vertical louver 16 and each horizontal louver 17.1.
.., 18, 18 ... are driven independently by drive devices 23 to 25 via rods 20 to 22, respectively, and the blowing direction is adjusted.

Hereinafter, an example of a control procedure during the cooling operation of the air conditioner having the above configuration will be described with reference to FIG.

The main controller 1 compares the room temperature T ₀ set by the user with the actual room temperature T ₁ read from the room temperature detecting device 3, controls the outdoor compressor 9 based on the result, and controls the indoor blower 7
Adjust the blowing temperature of. When the infrared rays radiated from the high temperature portion such as the wall 26 enter the infrared temperature detecting device 2 as indicated by the imaginary line arrow and it is detected that the temperature unevenness exists in the room, the wind direction control unit 4 adjusts the wind direction. The device 5 is controlled to preferentially blow air to the wall 26, which is a high temperature portion, as indicated by a solid arrow so that the temperature unevenness is eliminated and the entire room becomes a comfortable space. At this time, if the amount of air blown from the indoor blower 7 is increased by the air flow controller 6 so that strong air is blown, temperature unevenness can be eliminated in a short time.

In addition, by displaying the portion where the temperature unevenness occurs on the display unit 10, for example, if it is displayed that the temperature unevenness occurs near the window, the temperature unevenness is caused by sunlight being inserted through the window. Since it is understood by the user that this is the case, it is possible to eliminate temperature unevenness with less energy consumption by taking measures such as closing the curtain to prevent sunlight from entering through the window. The comfortable space in the room can be increased in time.

Further, as described above, basically, while eliminating the temperature unevenness in the room, the temperature control is performed so that the room temperature T ₀ matches the target temperature T ₁ , and then the infrared temperature detecting device 2 is used to control the indoor temperature. When it is detected that 27 is present, the air flow control unit 6 may control the wind direction adjusting device 5 to avoid the position where the person 27 is present and blow the air, as indicated by the dotted arrow. As a result, a comfortable cooling state can be obtained without causing the person 27 to feel uncomfortable due to direct exposure to cool air. Further, when the air is blown while avoiding the position where the person 27 is present, it is preferable to reduce the air flow of the indoor blower 7 by the air flow control unit 6 and blow the air in a weak wind state.

In the above, the control during the cooling operation is described, but in the heating operation, contrary to the cooling operation, if temperature unevenness is detected in the room, the wind direction is preferentially sent to the low temperature part. Control. Further, as in the case of the cooling operation, if there is a person 27 in the room, the position where the person 27 is present may be avoided so that the air is blown.

Further, in the above, the temperature control for eliminating the temperature unevenness in the room is performed, and when the person 27 is incidentally present, the control for blowing the air while avoiding the person 27 is performed. You may make it independently perform only the control which avoids a place and ventilates.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS.

In the above-described first embodiment, as ancillary control, when the person 27 is present in the air-conditioned room, the person 27 is avoided and air is blown, but in the second embodiment, 27
Instead of completely stopping the air blow to the position where
As shown by the arrows in FIGS. 6 (a) and 6 (b), the air flow of the pattern A that wraps around the person 27 while avoiding direct exposure to the person 27, and as shown by the arrows in FIGS. 7 (a) and 7 (b). The air flow of the pattern B concentrated on the person 27 is alternately generated, and the amount of air blown to the position where the person 27 is located is suppressed as a whole.

In that case, for example, in the case of the cooling operation, since the room temperature has not yet sufficiently decreased immediately after the start of the cooling operation, the cold air is directly blown to the person 27, so that the pattern B in FIGS.
It is possible to give the person 27 a more comfortable feeling by increasing the time for forming the air flow.

On the other hand, if the elapsed time from the start of the cooling operation becomes long, continuous blowing of cold air on the human body causes a decrease in body temperature and gives discomfort, and therefore FIG. 6 (a).
It is preferable to lengthen the time for forming the pattern A airflow that wraps around the person 27 shown in (b). Note that the above-mentioned circumstances also apply to the heating operation.

FIGS. 8A and 8B show two examples of the switching timing of the pattern A airflow and the pattern B airflow.

In the control of FIG. 8 (a), immediately after the start of the cooling or heating operation, the air flow of pattern B concentrated on the person 27 is first selected, and then the air flow of the pattern A wrapping around the person 27 and the air flow of the pattern B are selected. The air currents of the pattern A are kept constant for one time, and the one time duration of the air currents of the pattern B is gradually changed as the elapsed time from the start of the cooling or heating operation becomes longer. I try to make it shorter.

In the control shown in FIG. 8 (b), first, the person 2
Select the pattern B airflow that concentrates on 7, and then the person 2
The air flow of pattern A wrapping 7 and the air flow of pattern B are alternately switched. At this time, the one time duration of the air flow of pattern B is constant, and the one time duration of the air flow of pattern A is cooling. Alternatively, the heating time is gradually increased as the elapsed time from the start of heating operation increases. By alternately forming the pattern A and pattern B airflows as described above, a non-uniform fluctuating airflow such as natural wind can be realized, and as a result, more natural air conditioning can be performed.

In the above description, the case where the number of people 27 is one has been described, but when there are a plurality of people 27, the same control as described above can be performed for each person 27.

Further, as described above, the control for suppressing the air flow rate to the position where the person 27 exists by alternately switching the air flows of the pattern A and the pattern B may be performed in association with the control for eliminating the temperature unevenness in the room. Alternatively, only that may be performed independently.

〔The invention's effect〕

As described above, the air conditioner according to the present invention, in the air conditioner having the function of adjusting the air volume, the air direction, and the blowing temperature, detects infrared radiation from each part in the room in order to detect the temperature distribution in the room. An infrared ray detecting means, and a wind direction controlling means for controlling a wind direction so that when the infrared ray detecting means detects a temperature unevenness, the wind direction is preferentially blown to a portion having the temperature unevenness, When the infrared detecting means detects that the temperature unevenness is occurring, the display means is provided to display the portion where the temperature unevenness is occurring so as to be recognized by the user.

Thereby, the infrared temperature detecting means detects the temperature distribution in the room, and the wind direction controlling means, for example, preferentially blows the air to the high temperature portion during the cooling operation and to the low temperature portion during the heating operation. It will be possible to eliminate the temperature unevenness and to make the entire room a comfortable space.

Further, if the display means indicates that, for example, the temperature unevenness is occurring near the window, the user recognizes that the temperature unevenness is caused by sunlight being inserted through the window. The temperature unevenness can be eliminated with a small amount of energy consumption by taking measures such as closing the curtain to prevent sunlight from entering through the window, and as a result, the comfortable space in the room can be increased in a short time.

[Brief description of drawings]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a block diagram showing an air conditioner, and FIG. 2 is a sectional explanatory view showing an infrared temperature detecting device. FIG. 3 is a schematic front view showing a display unit, FIG. 4 is a schematic perspective view showing an air-direction adjusting device, FIG. 5 is an explanatory view showing a blown state by an indoor blower, and FIGS. 6 to 8 are drawings showing the present invention. FIGS. 6 (a) and 6 (b) are schematic plan views and schematic side views showing the formation state of the air flow of pattern A, and FIGS. 8A and 8B are schematic plan views and schematic side views showing the formation state of the air flow of pattern B, and FIGS. 8A and 8B are time charts showing two examples of the switching timing of the air flow of pattern A and the air flow of pattern B. Is. Reference numeral 2 is an infrared temperature detection device (infrared detection means), 4 is a wind direction control section (wind direction control means), and 10 is a display section (display means).

Claims (1)

[Claims] 1. An air conditioner having a function of adjusting air volume, wind direction, and blowout temperature, and infrared detecting means for detecting infrared radiation from each part of the room to detect temperature distribution in the room, and the infrared detecting means. When it is detected that the temperature unevenness is caused by, the wind direction control means for controlling the wind direction so that the air is preferentially blown to the part where the temperature unevenness occurs, and the temperature unevenness is caused by the infrared detecting means. An air conditioner, comprising: a display unit for displaying to a user a portion where temperature unevenness occurs when it is detected that the temperature is detected.