JPH05118618A - Controller of air conditioner operation - Google Patents

Abstract

(57) [Summary] [Purpose] To eliminate the uneven distribution of load in the air-conditioned space of the air conditioner, and to make the thermal conditions uniform. An air conditioning target space R of an air conditioner is divided into a plurality of air conditioning zones Z1, Z2, ... And a wind direction changing mechanism 49 is provided for changing the blowing direction of the conditioned air over each air conditioning zone Z1, Z2 ,. .. The air outlet 3 has a plurality of openings P1,
An opening / closing mechanism 50 for opening and closing the openings of the openings P1, P2, ... Is provided. Each air conditioning zone Z1, Z
The load detecting means Ir detects the air-conditioning loads 2, ..., And the calculating means 51 calculates the distribution of the air-conditioning loads in the entire air-conditioning target space R. The control unit 52 changes the air flow direction so that the air outlet direction is directed to the air conditioning zone in which the air conditioning load distribution calculated by the calculation unit 51 is large, and the opening area of the air outlet is narrowed as the air conditioning load distribution becomes larger. The mechanism 49 and the opening / closing mechanism 50 are controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation control device for an air conditioner, and more particularly to a measure for making a temperature distribution in a room uniform.

[0002]

2. Description of the Related Art Conventionally, for example, JP-A-2-15065
As disclosed in Japanese Patent Publication No. 5, a louver is provided at the air outlet, and the movement of the louver is detected in an air conditioner with a so-called auto louver in which the louver is connected to a mechanism for changing the angle from the reference position downward and upward. By changing the air volume of the blower fan according to the movement of the louver, for example, when the cool air changes to a downward angle during cooling operation, the air flow rate is reduced and the cool air blown directly to the user. Control that alleviates
Therefore, it is a known technique to improve the comfort of air conditioning.

[0003]

However, the above-mentioned publication has a problem that it is not possible to perform air conditioning that eliminates the uneven distribution of the air conditioning load distribution in the air conditioning target space.

That is, it is not possible to supply the conditioned air corresponding to the uneven distribution of the air conditioning load distribution such as the floor surface temperature distribution and the actual position of the user, and the capacity of the blower fan is limited to a certain extent. Therefore, for example, during heating operation, even if the air volume is increased when the louver is facing downward, there is a possibility that warm air may not reach the floor surface if the wind speed is not sufficient. Further, during the cooling operation, even if the air volume is increased at a position where the louver is near horizontal, the cold air may not reach the vicinity of the side edge of the room.

The present invention has been made in view of the above circumstances, and an object thereof is to improve the load distribution of the air-conditioned space by changing the blowing area and the blowing direction according to the ubiquity of the air conditioning load. Especially.

[0006]

Means for Solving the Problems To achieve the above object, the means taken by the present invention divides an air-conditioned space (R) into a plurality of air-conditioned zones (Z1), (Z2), ... In the device, set the direction of the conditioned air to the air conditioning zone (Z
(1), (Z2), ...
9) is provided.

Further, a plurality of openings (P1), (P
2), ..., an air outlet (3), an opening / closing mechanism (50) for opening and closing the openings (P1), (P2), ... Of the air outlet (3), and the air-conditioned space ( The load detection means (Ir) for detecting the air conditioning load of each air conditioning zone (Z1), (Z2), ... In R) and the output of the load detection means (Ir) are received, and the air conditioning target space (R) Based on the calculation means (51) for calculating the distribution of the air conditioning load and the calculation result of the calculation means (51), the blowing direction of the conditioned air is directed to the air conditioning zone where the distribution of the air conditioning load is large, and A control means (52) for controlling the airflow direction changing mechanism (49) and the opening / closing mechanism (50) is provided so that the area of the air outlet (3) becomes narrower as the ubiquity increases.

[0008]

With the above construction, in the present invention, the calculation means (5
1), the distribution of the air conditioning load of the entire air conditioning target space (R) is calculated from the air conditioning loads of the respective air conditioning zones (Z1), (Z2), ... Detected by the load detecting means (Ir), and the control means (52) ), The opening / closing mechanism (50) and the wind direction changing mechanism (49) are controlled so as to eliminate the uneven distribution of the air conditioning load distribution according to this air conditioning load distribution.

That is, since the blowing direction is directed to the air-conditioning zone where the distribution of air-conditioning loads is large, and the larger the distribution of air-conditioning load is, the smaller the area of the air outlet (3) is. The zone is reliably reached, and the conditioned air is intensively supplied to the zone, and the distribution state of the air conditioning load in the indoor space (R) is promptly improved.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

2 and 3 show a vertical sectional structure and a front structure of an indoor unit (A) of an air conditioner according to an embodiment of the present invention. The indoor unit (A) is a horizontal casing long in the horizontal direction. It is stored in (1). An air inlet (2) is provided in the center of the front surface of the casing (1) over substantially the entire width of the casing (1), and the air inlet (2) is provided at the lower end of the front surface of the casing (1). Is provided with an air outlet (3) having the same width as that of the air outlet, and an air passage (4) is formed in the casing (1) from the air inlet (2) to the air outlet (3) for the conditioned air to flow therethrough. ing.
A cross-flow type blower fan (5) is arranged in the ventilation passage (4), and a heat exchanger (6) is arranged upstream of the blower fan (5). That is, after the indoor air taken in from the air suction port (2) is heat-exchanged with the refrigerant in the refrigerant circuit (not shown) in the heat exchanger (6), it is blown into the room as conditioned air from the air outlet (3). It is designed to be put out.

Here, as a feature of the present invention, the air outlet (3) is interlocked with each other to rotate about a vertical axis 7
The vertical flaps (F1) to (F7) partition the openings in the lateral direction into eight openings (P1) to (P8). Although not shown, the vertical flaps (F1) to (F7) are connected to a common motor via a lever member, and by interlockingly rotating about the vertical axis, the blowing direction of the conditioned air is changed. Each air conditioning zone (Z1) to (Z6) described later
It is designed to be changed between. By this mechanism,
The wind direction changing mechanism (49) according to the present invention is configured.

Further, opening / closing control plates (S1) to (S8) are arranged in the openings (P1) to (P8), respectively.
Further, a stepping motor (M1) for individually rotating the open / close control plates (S1) through (S8) around the horizontal axis.
(M8) is provided, and the opening / closing control plate (S1) is controlled by the stepping motors (M1) to (M8).
~ (S8) is positioned between the rear ends of the vertical flaps (F1) to (F7) to close the openings (P1) to (P8) (solid line positions in the figure), and the air passage (4) Position each opening (P1) to (P1) to (P1)
8) is opened (the position of the broken line in the figure). The opening / closing mechanism (50) according to the present invention is constituted by the opening / closing control plates (S1) to (S8) and the stepping motors (M1) to (M8).

An infrared sensor (Ir) is arranged at the lower right end of the front surface of the casing (1) of the indoor unit (A), and the infrared sensor (Ir) is a controller for controlling the operation of the air conditioner. It is connected to (20) by a signal line.

FIG. 4 shows an outline of an indoor space (R) in which the indoor unit (A) is installed. The indoor space (R) is provided with six air conditioning zones (Z1) to (Z6). Has been. And the casing (1) of the indoor unit (A)
Is installed in the substantially central part of one side wall of the room, and the blowing direction of the conditioned air is changed over each of the air conditioning zones (Z1) to (Z6) by the rotation of the vertical flaps (F1) to (F7). It is designed to do. Further, the infrared sensor (Ir) is connected to each air conditioning zone (Z1) of the indoor space (R).
By scanning in the order of (Z6), the air conditioning load in each of the air conditioning zones (Z1) to (Z6) is sequentially detected from the floor surface temperature.

Next, FIG. 5 shows the control contents of the controller (20). When the air conditioner is turned on in step ST1, the air conditioning load detecting device (in the controller (20) built-in in step ST2 ( (Not shown) is turned on, and in steps ST3 to ST8, the air conditioning zone (Z1)
The air conditioning load in the air conditioning zone (Z6) is detected, and step ST
At 9, the distribution of the air conditioning load in the entire indoor space (R) is calculated. Then, in step ST10, the opening / closing control plate (S) is provided for each of the openings (P1) to (P8) of the air outlet (3).
Stepping motor (M1) that drives 1) to (S8)
~ (M8) actuation is determined. That is, the blowing direction of the conditioned air is directed to the air-conditioning zone where the distribution of air-conditioning loads is large, and the number of openings (R1) to (R8) that are opened when the air-conditioning load is large is reduced to reduce the air outlet (3). The opening area is narrowed to increase the wind speed and concentrate the supply of conditioned air. Then, in step ST10, the rotation speed of the blower fan (5), that is, the fan air volume is determined.

In the above control flow, step ST
The control means 9 constitutes the arithmetic means (51) according to the present invention, and the control step ST10 constitutes the control means (52) according to the present invention.

In the above embodiment, the air outlet (3) is composed of a plurality of openings (P1) to (P8), and each of the openings (P).
1) to (P8), an open / close mechanism (50) including open / close control plates (S1) to (S8) and stepping motors (M1) to (M8) for rotating the open / close control plates (S1) to (S8).
Is provided. Then, by the calculation means (51)
Each air conditioning zone (Z detected by infrared sensor (Ir)
The distribution of the air conditioning load of the entire indoor space (R) is calculated from the air conditioning loads of 1) to (Z6), and the control means (52) eliminates the uneven distribution of the air conditioning load corresponding to this distribution of the air conditioning load. Opening and closing mechanism (50) and wind direction changing mechanism (49)
Is controlled.

Here, since the control corresponding to the air conditioning load cannot be performed and the rated capacity of the blower fan (5) is limited only by varying the air volume of the blower fan (5) depending on the blowing direction, Air-conditioned air may not be directly supplied to the air-conditioned zone having a large air-conditioning load. On the other hand,
In the above-mentioned embodiment, since the blowing direction is directed to the air conditioning zone where the distribution of air conditioning loads is large, and the air outlet (3) is narrowed as the distribution of air conditioning load is larger, the air conditioning air Reliably reaches the air conditioning zone,
Moreover, the conditioned air is intensively supplied to the air conditioning zone,
The distribution state of the air conditioning load in the indoor space (R) is improved. That is, the warm state of the indoor space (R) is made uniform, and the comfort of air conditioning is improved.

In the above embodiment, the air outlet (3)
The opening and closing control plates (S1) to (S8) are individually provided as the opening and closing mechanism (50) for adjusting the opening area of the stepping motors, and the stepping motors (M1) to (M8) are individually turned. Needless to say, the structure of the opening / closing mechanism (50) is not limited to this embodiment, and various mechanisms can be adopted.

Although not described in the above embodiment, even if the air conditioning load is large in a certain air conditioning zone, if there is a heat source such as a stove during heating operation, it will be detected by an infrared sensor (Ir). Therefore, the supply of the conditioned air may be stopped for such an conditioned zone.

Furthermore, the infrared sensor (I
r) may be a pyroelectric type or a thermopile type.

[0023]

As described above, according to the present invention,
The air conditioning target space of the air conditioner is divided into multiple air conditioning zones, and a wind direction changing mechanism that changes the blowing direction of the conditioned air between each air conditioning zone is provided, and the air outlet is divided into multiple openings. While an opening / closing mechanism for opening and closing the opening is installed for each part, the air conditioning load of each air conditioning zone is detected to obtain the distribution of the air conditioning load of the entire air conditioning target space, the blowing direction is directed to the air conditioning zone with a large air conditioning load, and the air conditioning load is Since the wind direction changing mechanism and the opening / closing mechanism are controlled so that the larger the area of the air outlet is reduced, it is possible to make the heat conditions of the air-conditioned space uniform, thus improving the comfort of air conditioning. it can.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a vertical cross-sectional structure of the indoor unit of the air conditioner according to the embodiment and is a cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a front view of an indoor unit of the air conditioner.

FIG. 4 is a plan view showing a schematic shape of an indoor space in which an air conditioner is arranged.

FIG. 5 is a flowchart showing the control contents of the controller.

[Explanation of symbols]

 3 Air outlet 49 Air direction changing mechanism 50 Opening / closing mechanism 51 Computing means 52 Control means P1, P2, ... Opening R Indoor space (air conditioning target space) Z1, Z2, ...

Claims (1)

[Claims] 1. A space to be air-conditioned (R) is divided into a plurality of air-conditioning zones (Z1), (Z2), ..., And the blowing direction of air-conditioned air is changed between the air-conditioning zones (Z1), (Z2) ,. And an air outlet (3) having a plurality of openings (P1), (P2), ... And each of the openings (P) of the air outlet (3).
1), (P2), ... Opening / closing mechanism (50) for opening and closing, and each air conditioning zone (Z1), (Z in the air conditioning target space (R).
2), load detecting means (Ir) for detecting the air conditioning load
And a calculation means (5) for receiving the output of the load detection means (Ir) and calculating the distribution of the air conditioning load in the air conditioning target space (R).
1) and the calculation result of the calculating means (51), the direction of air-conditioning air is directed to the air-conditioning zone where the air-conditioning load distribution is large, and the air-conditioning outlet (3) is larger as the air-conditioning load distribution is larger. The control device (52) for controlling the wind direction changing mechanism (49) and the opening / closing mechanism (50) so as to reduce the area of (1).