JPH0195243A - Air conditioner - Google Patents

Abstract

PURPOSE:To make a superior distribution of indoor temperature even if a rotational speed of an indoor fan is set at a relative low speed by a method wherein a hot air blowing angle of the indoor fan set is made variable in response to a turned-ON switch for an installing condition setting means and a direction setting means. CONSTITUTION:Each of output signals of installing condition setting switches 10a and 10b and an air direction changing-over switch 11 is inputted. If the air direction setting switch 11 is set in 'a horizontal blowing', a set air direction is set to a standard of 'horizontal blowing'. In case of NO, it is set to a standard of 'lower blowing'. If it is in a standard level in response to an input of an installing height 10a, a correcting operation of the set air direction switch 11 in response to the installing height is not carried out. In case of high level, the set air direction switch 11 is set to have a lower blowing, and in case of low level, it is set to show an upper blowing. It if is at a central part in response to input of installing right and left positions, the set air direction is not corrected. If it is in the right or left, the set air direction is set to show a lower blowing. A determined blowing angle is supplied to a vane motor driving circuit in 8 and an energization of a vane motor 9 is carried out in response to the determined blowing angle.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an air conditioner, particularly to improving indoor temperature distribution during heating.

[Conventional technology]

FIG. 5 is an electric circuit diagram showing a method of setting the rotation speed of an example of a conventional indoor fan of an air conditioner disclosed in, for example, Japanese Unexamined Patent Publication No. 52-28152. 1 is an AC power supply; 2 is a wind speed changeover switch that has classifications such as "strong", "weak", and "fine" for switching the rotation speed (hereinafter simply referred to as rotation speed) of the indoor fan motor 3; and 4 is a starting capacitor. It is.

In FIG. 5, when the wind speed selector switch 2 is switched, the rotation speed of the indoor fan changes. For example, during heating: when the wind blowing direction is set to downward blow, the air conditioner U changes according to the change in the rotation speed of the indoor fan. The distribution of warm air flowing out of the room R changes in the order of increasing rotational speed, as illustrated by solid lines a, b, and c in FIG. 6. When the indoor fan's wind speed selector switch 2 is set to "Strong", the temperature of the hot air blown downward is relatively low and the distance it travels is long, so the room R is sufficiently stirred as shown by the solid line C. Temperature distribution becomes better. However, due to the fact that such strong air currents make the occupants feel like they are being hit by the wind, and there are problems with the operating noise of the indoor fan, the above air speed settings are not actually used at "weak" or "sign". It is often done. However, in this case, the solid line a
As shown in , b, the hot air reach distance decreases, and the hot air may not reach the floor if the installation height of the air conditioner U is high or if the left and right position of the installation on the wall is off center. As a result, the indoor temperature distribution deteriorates.

[Problem that the invention seeks to solve]

Conventional air conditioners have been configured as described above, so depending on the installation conditions of the air conditioner, especially the installation height of the air conditioner and the left-right position of the installation relative to the wall, the type of indoor fan that is frequently used may vary. When the wind speed selector switch is set to relatively low speeds such as "weak" or "strong", there is a problem in that the warm air does not reach the floor surface and the indoor temperature distribution deteriorates.

This invention was made to solve the problems of the conventional example as described above, and even if the indoor installation conditions change and the rotation speed of the indoor fan is set relatively low, the indoor temperature distribution will not change. The purpose is to provide an air conditioner that can provide good heating.

[Means for solving interlayer points]

Therefore, the air conditioner according to the present invention is provided with indoor installation condition setting means and wind direction setting means, and the hot air blowing angle of the indoor fan set to blow downward can be varied according to the manual operation of the switch. By configuring the system so that

[Effect]

With the above configuration, in the air conditioner of the present invention, the blowing angle set for downward blowing is variably controlled according to the indoor installation conditions, so that hot air does not reach as much as in the conventional example. Since the distance is short, the temperature distribution does not worsen, and the indoor temperature distribution is improved because the blowing angle is set to an appropriate angle.

〔Example〕

The present invention will be explained below based on examples.

FIG. 1 shows a block diagram of an embodiment of an air conditioner control system according to the present invention. 5 is an installation condition setting means for setting installation conditions for the room of the air conditioner; 6 is an installation condition setting means;
The wind direction setting means 7 for setting the hot air blowing angle is a hot air blowing angle determining means. By taking in and calculating the output signals of the respective parts, the blowing angle of the hot air is determined based on a predetermined control program to be described later. Then, by supplying the blowing angle signal outputted from the hot air blowing angle determining means 7 to the vane motor drive circuit 8, the vane motor 9 that controls the hot air blowing angle is driven and controlled.

FIG. 2 shows a control circuit diagram of this embodiment.

1 is an AC power supply; 10 is an installation condition setting switch as installation condition setting means 5; and 11 is a wind direction changeover switch as wind direction setting means 6. Details of both switch sections are shown in FIG. The installation condition setting switch 10 is an installation height setting switch 10a that sets the installation height of the indoor unit.
and an installation left/right position setting switch 10b that sets the installation left and right positions with respect to the wall surface, and the installation height setting switch 10a has a standard height (for example, 1.7 to 1.9 mm) and a It is possible to set it as high (>1.9 mm) or low (<1.7 mm). - On the other hand, the installation left/right position setting switch tab allows setting of installation in the center of the room or in left and right positions away from the center. Further, the wind direction changeover switch 11 allows setting of the wind direction in two stages: "downward blow" and "horizontal blow".

The respective output signals of the respective switches are supplied to the input circuit 13 of the microcomputer 12 in FIG. The microcomputer 12 has an input circuit 13. C.P.
U14. By configuring the output circuit 15 and the memory 19, it has a function of determining the hot air blowing angle. From this output circuit 15, a blowing angle command determined by the blowing angle determining function is supplied to the vane motor drive circuit 8, whereby the blowing angle by the vane motor 9 is varied. Note that 16 indicates a DC power supply.

Next, the operation of the above embodiment will be explained.

First, after installing the indoor unit indoors, check the installation height of the air conditioner U from the floor of the room and whether it is installed in the center in the left and right direction with respect to the wall surface, and check each switch 10a, 10b of the installation condition setting switch 10. Set each. Further, the user sets a desired wind direction using the wind direction changeover switch 11. In response to these input signals, the blowing angle determining means 7 configured with a microcomputer determines the blowing angle by the vane 9.

On the other hand, the memory 19 stores a control program including a program for determining the blowing angle, and an operation sequence flowchart thereof is shown in FIG. below,
The operation will be explained using this flowchart.

First, steps 51-53. At this point, the output signals of the installation condition setting switch 10 (10a, 10b) and the wind direction changeover switch 11 are input. Next, step 5
4, if the wind direction setting 11 is the "horizontal blow" setting (YES), the set wind direction is set to the standard "horizontal blow" in step 55. Further, in the case of No in step 54, the wind direction setting is set to the standard "downward blow" using the step knob 56. Here, the standard blowout angle is defined as the blowoff angle that is the optimum wind direction for hot air to reach the floor surface when the installation height is standard under the installation conditions and the horizontal and vertical installation positions relative to the wall surface are in the center.

Next, in step 57, based on the input of the installation height 10a, it is determined whether the installation height is standard. If it is standard (YES), the process jumps to step 61 and the set wind direction 11 is not modified based on the installation height. If it is not standard (No), it is determined whether it is high or low in step 58,
If it is high (YES), set wind direction 11 in step 59.
Make it blow down by X1 degrees. On the other hand, if it is low (NO
) causes the set wind direction 11 to blow downward by X2 degrees in step 60. Furthermore, in step 61, based on the input of the left and right installation positions, it is determined whether the left and right installation positions are at the center. If it is in the center (YES), the set wind direction is not modified. If it is not the center but the left and right (YES), the set wind direction is made to blow down by X3 degrees in step 62. The determined blowing angle is supplied to the vane motor drive circuit 8 shown in FIG. 2, where the vane motor 9 is energized according to the blowing angle previously determined. That is, the installation condition setting switch 10a.

10b, if the installation height is high or the left and right positions of the installation are not in the center, the wind direction setting 11 is set to "downward blow".
In this case, the blowing angle by the vane motor 9 is corrected to slightly downward blowing. As a result, even if the installation conditions change while the wind direction setting 11 is set to "downward blow", an appropriate hot air reach distance can be ensured.

In addition, in the above example, the installation conditions are set by setting the installation height and the installation left and right positions, but in addition, various necessary conditions such as the size of the room and the shape of one room are added. By doing so, the effect can be further ensured.

[Effects of the Invention] As explained above, according to the present invention, the hot air blowing angle is made variable depending on the indoor installation conditions of the air conditioner. Warm air does not reach the floor surface and the indoor temperature distribution is prevented from deteriorating, and a comfortable heating environment can be obtained when the downward blowing angle is set.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a control system of an air conditioner according to an embodiment of the present invention, FIG. 2 is a control circuit diagram of this embodiment, and FIG. 3 is a block diagram showing the control system of an air conditioner according to an embodiment of the present invention. 4 is a detailed diagram, FIG. 4 is an operation sequence flowchart of the blowing angle determining means, FIG. 5 is a control circuit diagram of an example of a conventional air conditioner, and FIG. 6 is an indoor warm air airflow distribution of a conventional air conditioner. It is a figure which shows an example. U is an air conditioner 1.5 is an installation condition setting means, 6 is a wind direction setting means, 7 is a blowing angle determining means, 9 is a vane motor,
10 is an installation condition setting switch, 10a is an installation height setting switch, 10b is an installation left/right position setting switch, and 11 is a wind direction changeover switch. In each figure, the same reference numerals indicate the same or equivalent components.

Claims (1)

[Claims] It has an installation condition setting means for inputting the installation position of the air conditioner indoors, etc., and a wind direction setting means for setting the hot air blowing angle. An air conditioner comprising a blowing angle determining means for determining a wind blowing angle.