JP2018040501A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner enabling air-conditioning with change of a surface temperature of a person in a room reflected.SOLUTION: An air conditioner includes human detection means 110 of detecting a position of a person in a room, surface temperature detection means 111 of detecting a surface temperature of the person in the room, and control means 130 of controlling a wind direction based on the information from the human detection means and surface temperature detection means 111. The control means 130 includes a function of continuously directing wind to the person in the room, and a function of changing the wind direction facing the person in the room based on the surface temperature of the person in the room.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an air conditioner that performs air conditioning control based on the surface temperature of a room occupant.

  There is a technique for providing a human detection means in an air conditioner and directing the wind direction to the detected occupants (see Patent Document 1). According to this technique, it becomes possible to quickly warm or cool a room occupant by directing the wind direction toward the room occupant.

  On the other hand, there is a technique for providing an air conditioned space shape detecting means in an air conditioner and controlling the wind direction based on the detected shape of the air conditioned space. According to this technology, the air-conditioned space can be warmed or cooled without temperature unevenness.

JP 2014-035133 A

When the direction of the wind is directed toward the occupant detected by the human detection means (Patent Document 1), the occupant or its surroundings quickly warms or cools. However, when the occupant is near the corner of the air-conditioned space, the corner on the side where the occupant is not present does not warm or cool even if time passes from the start of the air conditioning. For this reason, temperature unevenness occurs in the air-conditioned space, and the occupants feel uncomfortable.
On the other hand, if the wind direction is controlled based on the detected shape of the air-conditioned space in order to eliminate the temperature unevenness in the air-conditioned space, the temperature unevenness is eliminated. However, it takes a long time to reach a comfortable temperature around the occupant.

  Therefore, the present invention provides an air conditioner that realizes comfortable air conditioning that combines air conditioning for quickly heating and cooling the occupant's surroundings and air conditioning for eliminating temperature unevenness in the air-conditioned space. The purpose is to provide.

  In order to achieve the above object, an air conditioner according to the present invention includes a person detection means for detecting the position of a occupant, a surface temperature detection means for detecting the surface temperature of the occupant, a person detection means, and a surface temperature. Control means for controlling the wind direction based on information from the detection means, and the control means has a function of directing the wind direction toward the occupant and a wind direction toward the occupant based on the surface temperature of the occupant. And a function to change. Other aspects of the present invention will be described in the embodiments described later.

  ADVANTAGE OF THE INVENTION According to this invention, the air conditioner which implement | achieves comfortable air conditioning which eliminated the temperature nonuniformity in a to-be-air-conditioned space can be provided, heating a room occupant or the circumference | surroundings quickly, or cooling.

It is a front view of the indoor unit of an air conditioner, an outdoor unit, and a remote control. It is a sectional side view of the indoor unit disclosed in FIG. It is a block diagram of the air conditioner disclosed in FIG. It is a flowchart of a 1st embodiment. FIG. 5 (a) is a wind direction control diagram that controls the wind direction between two detected corners of the air-conditioned space, and FIG. 5 (b) controls the wind direction toward the occupant (person). 5 (c) is a wind direction control diagram in which the wind direction is controlled toward two corners and occupants, and FIG. 5 (d) is the occupant direction of two people. It is a wind direction control figure currently controlled toward. It is a flowchart of a 2nd embodiment. It is a wind direction control figure at the time of the swing of the conventional air conditioner.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view of the indoor unit 100, the outdoor unit 200, and the remote controller Re of the air conditioner A in the present embodiment.

  As shown in FIG. 1, the air conditioner A includes an indoor unit 100, an outdoor unit 200, and a remote controller Re. The outdoor unit 200 includes a compressor, an outdoor heat exchanger, an outdoor blower, a four-way valve, and an expansion valve. The indoor unit 100 includes an indoor heat exchanger and an indoor blower. The indoor unit 100 and the outdoor unit 200 are connected by a refrigerant pipe (not shown), and the indoor unit 100 in which the indoor unit 100 is installed can be air-conditioned by a known refrigerant cycle. The indoor unit 100 and the outdoor unit 200 transmit and receive information to and from each other via a communication cable (not shown).

  The remote controller Re is operated by a person in the room and transmits an infrared signal to the remote controller transmission / reception unit Q of the indoor unit 100. The contents of the infrared signal are commands such as an operation request, a change in set temperature, a timer, an operation mode change, and a stop request. The air conditioner A performs air conditioning operations such as a cooling mode, a heating mode, and a dehumidifying mode based on these infrared signal commands. Moreover, the indoor unit 100 transmits data such as room temperature information, humidity information, and electricity bill information from the remote control transmission / reception unit Q to the remote control Re.

  In addition, a human detection unit 110 is installed in the lower center of the indoor unit 100. The human detection means (hereinafter referred to as “human detection unit”) 110 is a sensor that detects a human body in a room where the indoor unit 100 is installed, using a thermopile, an infrared sensor, a sound sensor, a camera, or the like. The human detection unit 110 can detect the position of a person in the room. In the vicinity of the human detection unit 110 (in the vicinity of the right side in FIG. 1), surface temperature detection means (hereinafter referred to as “surface temperature detection unit”) 111 is installed. The surface temperature detection unit 111 is a sensor that detects the surface temperature of a room occupant using a thermopile, an infrared sensor, or the like. Here, the surface temperature of the occupant includes the surface temperature of the occupant's feet, the surface temperature of the floor of the occupant's feet, the surface temperature of the occupant's face, and the like. In addition, when the person detection part 110 is a thermopile or an infrared sensor, it can be used also as the surface temperature detection part 111. FIG. Incidentally, during heating, warm air is directed to the feet of the occupants, and for example, the surface temperature of the occupants' feet and feet (floor) is detected as the surface temperature of the occupants. During cooling, cold air is directed toward the face of the occupant, and for example, the surface temperature of the occupant's face is detected as the surface temperature of the occupant.

  Further, an air-conditioned space shape detection means (hereinafter referred to as “air-conditioned space shape detection unit”) 112 is installed in the vicinity of the human detection unit 110 (near the left side in FIG. 1). The air-conditioned space shape detection unit 112 is a CCD image sensor, for example, and detects the shape of the air-conditioned space. Specifically, based on the image photographed by the air-conditioned space shape detection unit 112, an edge in the image is extracted, an intersection is created by extending the edge, and a corner in the room is detected. Then, the detected corner is used as a tangent line between the wall and the wall or the wall and the ceiling or the wall and the floor, and the shape and position of the indoor wall, ceiling, and floor are detected. In addition, when the person detection part 110 is a camera, it can also serve as the air-conditioned space shape detection part 112.

  The air-conditioned space shape detection unit 112 according to the present embodiment newly detects the shape of the air-conditioned space every time the vehicle is operated. This is because the shape of the air-conditioned space changes when a door or a sliding door installed in the air-conditioned space is opened and closed. However, if the opening and closing of doors and sliding doors can be ignored, the shape of the air-conditioned space detected first by installing the air conditioner A can be stored and used for subsequent control. Good.

FIG. 2 is a side sectional view of the indoor unit 100.
As shown in FIG. 2, the housing base 101 of the indoor unit 100 houses internal structures such as the indoor heat exchanger 102, the blower fan 103, and the filter 108.
The indoor heat exchanger 102 has a plurality of heat transfer tubes 102a. The indoor heat exchanger 102 is configured to heat or cool the air taken into the indoor unit 100 by the indoor fan 103 with the refrigerant flowing through the heat transfer tube 102a, thereby heating or cooling the air. The heat transfer tube 102a communicates with the above-described refrigerant pipe, and constitutes a part of a known refrigerant cycle.

  The left and right wind direction plates 104 are rotated by a left and right wind direction plate motor (not shown) with a pivot shaft (not shown) provided at the bottom as a fulcrum according to an instruction from a main microcomputer (not shown) of the indoor unit 100. Moved. The left and right wind direction plate 104 has a structure in which the wind direction is directed in only one direction, and a structure in which the wind direction is simultaneously directed in two directions, for example, a structure in which the right and left portions of the left and right wind direction plate 104 are individually moved. It may be.

In accordance with an instruction from the main microcomputer of the indoor unit 100, the vertical wind direction plate 105 is rotated by a vertical wind direction plate motor (not shown) with pivot shafts (not shown) provided at both ends as fulcrums.
The up / down wind direction plate 105 may be divided in the left / right direction.
The front panel 106 is installed so as to cover the front surface of the indoor unit 100, and is configured to be rotatable by a front panel motor (not shown) with the lower end as an axis. The front panel 106 is not limited to this configuration, and may be configured to be fixed to the lower end.

  As the blower fan 103 rotates, the room air is taken in through the air suction port 107 and the filter 108, and the air heat-exchanged by the indoor heat exchanger 102 is guided to the blowout air passage 109a. The air guided to the blowout air passage 109a is adjusted in air direction by the left and right airflow direction plates 104 and the vertical airflow direction plate 105, and is sent to the outside from the air blowout port 109b. The air sent to the outside from the air outlet 109b air-conditions the room.

  The configuration of the air conditioner A of this embodiment is merely an example, and the present invention can be applied to any form of air conditioner.

  FIG. 3 is a configuration diagram showing an outline including the control means (hereinafter referred to as “control unit”) 130 of the air conditioner A. The control unit 130 of the air conditioner A includes a wind direction range determination unit 134, an air conditioning control unit 136, a surface temperature determination unit 131, and an occupancy time determination unit 135. Each component of the control unit 130 may be realized by a computer including an arithmetic device and a storage device. The control unit 130 controls the operation of the load 150 based on each sensor information. The control unit 130 is connected to a human detection unit 110, a surface temperature detection unit 111, an air-conditioned space shape detection unit 112, a room temperature sensor 123, and the like. However, other sensors and detection units may be connected.

  The person detection unit 110 outputs the position of the occupant in the air-conditioned space to the wind direction range determination unit 134. If the position of the occupant can be detected, the presence or absence of the occupant can also be detected. The surface temperature detection unit 111 outputs the surface temperature of the occupant in the air-conditioned space to the wind direction range determination unit 134 via the surface temperature determination unit 131. The air-conditioned space shape detection unit 112 outputs the shape of the air-conditioned space to the wind direction range determination unit 134. The room temperature sensor 123 measures the room temperature in the air-conditioned room. This room temperature sensor 123 is installed in the vicinity of the air inlet 107 of the indoor unit 100 and detects the temperature of the air sucked into the indoor unit 100.

  The wind direction range determination unit 134 determines a wind direction range (vertical and horizontal swing ranges) based on information input from the human detection unit 110, the surface temperature detection unit 111, and the air-conditioned space shape detection unit 112. . The air-conditioning control unit 136 uses the wind direction range determined by the wind direction range determination unit 134, the room temperature input from the room temperature sensor 123, the command signal input from the remote controller Re, and the sensor output input from other various sensors. Accordingly, the operation of the air conditioner A is comprehensively controlled.

  The surface temperature determination unit 131 determines the surface temperature of the occupant (for example, see step S4 in FIG. 4 described later). Here, the determination is to determine whether or not the surface temperature of the occupant satisfies a predetermined condition. A human detection unit 110 and a surface temperature detection unit 111 are connected to the surface temperature determination unit 131. For this reason, the surface temperature determination unit 131 determines the surface temperature of the occupant by combining information from the human detection unit 110 and the surface temperature detection unit 111. The occupancy time determination unit 135 determines an accumulated time after the occupant is detected (see, for example, step S2 in FIG. 4 described later).

  For example, the load 150 is installed in the compressor motor 151 included in the outdoor unit 200, the blower fan motor 152 included in the indoor unit 100, the left / right wind direction motor 153 installed in the left / right wind direction plate 104, and the up / down wind direction plate 105. And a vertical wind direction plate motor 154. These left and right wind direction plates 104 and left and right wind direction plate motors 153, the up and down wind direction plates 105 and the up and down wind direction plate motors 154 are wind direction control mechanisms that control the wind direction of the air exiting from the air outlet 109 b of the indoor unit 100. This wind direction control mechanism is controlled by the control unit 130.

  Operation control of the air conditioner A of the present embodiment will be described with reference to FIGS. 1 to 3 as appropriate with reference to FIGS. 4 and 5. The following various controls are executed by the control unit 130 in principle. FIG. 4 is a flowchart of operation control according to the first embodiment, and FIG. 5 is a wind direction control diagram according to the first embodiment. The air conditioner A starts operation by an operation from the remote controller Re. First, in step S <b> 1, the presence / absence and position of the occupant in the air-conditioned space P are detected by the human detection unit 110. If the occupant is detected (Yes in step S1), the process proceeds to step S2. If the occupant is not detected (No in step S1), the process proceeds to step S3.

[When no occupants are detected]
In step S <b> 3, the wind direction is controlled based on the shape of the air-conditioned space P detected by the air-conditioned space shape detection unit 112. At this time, two corners of the air-conditioned space P are detected by the air-conditioned space shape detection unit 112. These two corners are corners formed by a wall surface opposite to the wall surface on which the indoor unit 100 of the air conditioner A is installed and two side surfaces. Information on the detected shape of the air-conditioned space P is input to the wind direction range determination unit 134. As shown in FIG. 5A, the wind direction range determination unit 134 determines a range between two detected corners as the wind direction range.

  The reason why the wind direction range is set between the two corners as described above is as follows. FIG. 7 shows a general wind direction range by a swing of a conventional air conditioner. In this air conditioner, the wind direction can be directed to a wind direction range of about 80 ° from the front direction toward the left and right walls (about 160 ° in the horizontal direction as a whole). This is a case where the wind direction is controlled within the maximum wind direction range of the indoor unit 100 without detecting the shape of the air-conditioned space P. However, the wind direction range facing the left wall as viewed from the indoor unit 100 is not used effectively for air conditioning of the air-conditioned space P and is wasted. In order to eliminate such waste, a wind direction range is set between two detected corners as shown in FIG.

  Information on the wind direction range determined by the wind direction range determination unit 134 is input to the air conditioning control unit 136. The left and right wind direction plate motor 153 of the load 150 is controlled by the air conditioning control unit 136 so that the wind direction range swings between the two corners. Thereby, in step S3, the wind direction is controlled based on the shape of the air-conditioned space P. Thereafter, the process proceeds to step S7.

[When occupants are detected]
When the occupant is detected (Yes in step S1), the occupant's occupancy time is determined by the time determination unit 135 in step S2. When it is determined that the occupancy time is shorter than a predetermined value T1 (for example, a predetermined value of about 5 minutes to about 10 minutes) (Yes in step S2), the process proceeds to step S4 and is longer than the predetermined value T1. (No in step S2), the process proceeds to step S6. As described above, the reason why the occupant's occupancy time is shorter or longer than the predetermined value T1 is as follows. In the case where the surface temperature detection unit 111 detects the surface temperature of the detection area by rotating a thermopile, for example, it takes time until a detection result is obtained. For this reason, if it waits for the detection result of a thermopile without determining occupancy time T1, it may be considered that the wind direction is continuously directed toward the occupant for a long time. By determining the occupancy time T1, it is possible to appropriately change the wind direction without waiting for the detection result of the surface temperature even in a detection method that takes time. Also, if the warm air is directed to the feet for a certain amount of time, the feet of the occupants are warmed. Rather, warming the entire air-conditioned space increases comfort and meets the problems of the present invention. .

  Next, in step S4, the surface temperature of the occupant is determined. The determination of the surface temperature of the occupant is performed by the surface temperature determination unit 131. As described above, the surface temperature of the occupant is determined based on the surface temperature detected by the surface temperature detector 111 and the information on the position of the occupant detected by the person detector 110. The surface temperature of the occupant in the present embodiment is the surface temperature of the occupant's feet during the heating operation. However, if it is difficult to detect the surface temperature of the foot, the surface temperature of the floor of the occupant's feet is used. In the cooling operation, the surface temperature of the occupant's face is used as the surface temperature. Since the surface temperature detection unit 111 in the present embodiment is a thermopile, the surface temperature of the floor of the occupant's feet and the feet is detected from the relationship of the resolution of the temperature measurement.

  As specific processing in step S4, when the surface temperature of the foot is lower than a predetermined value T2 during the heating operation, or when the surface temperature of the face is higher than the predetermined value T3 during the cooling operation (in step S4) Yes), the process proceeds to step S5. On the other hand, when the foot surface temperature is higher than the predetermined value T2 during the heating operation, or when the face surface temperature is lower than the predetermined value T3 during the cooling operation (No in step S4), the process proceeds to step S6. The predetermined value T2 is a temperature at which the occupant feels cold on the feet (in winter), and is a predetermined temperature in a range of about 18 ° C. to about 22 ° C., for example. The predetermined value T3 is a temperature at which the occupant feels that the face is hot (summer), and is a predetermined value in a range of about 30 ° C. to about 35 ° C., for example. Thus, in this embodiment, the timing which changes the wind direction toward the occupant is controlled based on the surface temperature. That is, if the occupant's feet warm up quickly or cool down quickly, the wind direction toward the occupant is changed at an early timing. For this reason, the whole air-conditioned space P can be appropriately air-conditioned without excessively air-conditioning the surroundings of the occupants thereafter, while quickly setting the surroundings of the occupants to a comfortable temperature.

  In step S <b> 5, the wind direction range determination unit 134 determines the wind direction at the position of the occupant (person) detected by the human detection unit 110. Then, the information on the determined wind direction is sent to the air conditioning control unit 136, and the wind direction is directed to the occupant as shown in FIG. 5B, and the process proceeds to step S7. On the other hand, in step S <b> 6, the wind direction range determination unit 134 determines that the wind direction range is a range including the two corners detected by the air-conditioned space shape detection unit 112 and the occupants detected by the person detection unit 110. Is done. Then, the information on the determined wind direction is sent to the air-conditioning control unit 136, and as shown in FIG. 5C, the wind direction is controlled to swing in a range including two corners and the occupants. Proceed to processing. Here, the reason why the occupants are included in the wind direction range is as follows. That is, if the direction of the wind is stopped before the entire air-conditioned space P reaches the set temperature, the occupant feels cold or hot.

  In step S7, the air conditioning control unit 136 determines whether or not an operation for stopping the air conditioning operation has been performed. When the stop operation of the air conditioning operation is not performed (No in Step S7), the process returns to the occupant detection process in Step S1. When the stop operation of the air conditioning operation is performed (Yes in step S7), the air conditioning control unit 136 stops the air conditioning operation.

  FIG. 5D shows a case where there are two occupants (persons) in the air-conditioned space P. In such a case, each determination and control in step S2 to step S6 in FIG. 5 is performed for each occupant. For example, when the occupancy time of both occupants is shorter than the predetermined value T1 (Yes in step S2), the surface temperature of both occupants is determined (step S4). When the surface temperature of both occupants satisfies the condition of step S4 (Yes in step S4), the wind direction is continuously directed to both occupants (step S5). At this time, if the indoor unit 100 has a function of directing the wind direction in two directions at the same time, the wind direction is fixed while being directed toward both occupants. On the other hand, when the indoor unit 100 can direct the wind direction only in one direction, the wind direction is alternately directed to both occupants. Specifically, the wind direction is directed to the second occupant after a predetermined time has elapsed since the wind direction was directed to the first occupant. Then, after a predetermined time has elapsed since the wind direction is directed toward the second occupant, the wind direction is directed again toward the first occupant. Thereby, both occupants can be warmed or cooled quickly. When the surface temperature of any one of the occupants no longer satisfies the condition of step S4, the wind direction is directed only to the other occupant.

  With the above operation control, when there are occupants in the room, the air direction is directed toward the occupants during the heating operation while the temperature at the feet of the occupants and the ambient temperature of the occupants are lower than the predetermined values. Can warm up quickly. On the other hand, when the foot temperature or the ambient temperature is higher than a predetermined value, the air conditioned space is directed to the entire air conditioned space P and the occupants without feeling cold. Can be warmed up evenly.

  Further, during the cooling operation, while the temperature of the occupant's face (or the ambient temperature of the occupant) is higher than a predetermined value, the occupant can be quickly cooled by directing the air direction toward the occupant. . On the other hand, when the temperature of the face or the ambient temperature becomes lower than a predetermined value, the direction of the wind is directed toward the entire air-conditioned room P and the people in the room. Can cool evenly.

[Second Embodiment]
Next, a second embodiment will be described with reference to FIGS. 2, 3 and 6. The second embodiment is characterized in that the control unit 130 has a function of starting the preliminary operation of the air conditioner at a predetermined time. Here, the preliminary operation means that the air conditioning control unit 136 of the control unit 130 starts the compressor motor 151 and operates the compressor (not shown) before the air conditioning operation (heating operation or cooling operation). means. An advantage of performing the preliminary operation is that hot air or cold air can be quickly blown out when the air-conditioning operation is started. In particular, when heating operation is performed, it may take several minutes after the compressor is operated for the high-temperature refrigerant to reach the heat transfer tube 102a of the indoor heat exchanger 102. In this case, warm air cannot be blown into the air-conditioned space until the high-temperature refrigerant reaches the heat transfer tube 102a. On the other hand, since the high-temperature refrigerant reaches the heat transfer tube 102a in advance by performing the preliminary operation, the hot air can be blown out immediately after the start of the air-conditioning operation.

  The start time of the preliminary operation is arbitrarily set by the user. When the preliminary operation start time comes, the air conditioning control unit 136 of the control unit 130 starts the compressor motor 151 and starts the preliminary operation. If the operation start operation is not performed after the preliminary operation is started (No in step S21), the air conditioning operation is not started. When the operation start operation has been performed (Yes in step S21), the process proceeds to step S22. In step S22, occupant detection is performed, and when an occupant is detected, wind direction control is performed toward the occupant (step S23). At this time, since the preliminary operation has already been performed, the hot air or the cold air can be quickly blown out toward the occupants. For this reason, it is possible to quickly warm or cool the occupants.

  Thereafter, the surface temperature of the occupant is determined (step S24). The determination of the surface temperature of the occupant is the same as in the case of the first embodiment. That is, at the time of heating, it is determined whether the surface temperature of the foot is lower than the predetermined value T2 or whether the surface temperature of the face is higher than the predetermined value T3. When the surface temperature of the occupant satisfies the condition in step S24 (Yes in step S24), the process returns to step S21, and the above series of steps is repeated. Therefore, as long as the surface temperature of the occupant wants to see the condition of step S24, the wind direction is continuously directed to the occupant. If the surface temperature of the occupant does not satisfy the condition in step S24 (No in step S24), the process proceeds to step S25. In step S25, wind direction control is performed based on the air-conditioned space shape and the occupant position.

  On the other hand, if no occupant is detected in step S22 (No in step S22), the process proceeds to step S26. In step S26, wind direction control is performed based on the air-conditioned space shape. For this reason, the air-conditioned space can be air-conditioned without temperature unevenness.

  The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the configurations described. Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

A Air conditioner 100 Indoor unit 200 Outdoor unit Re Remote control Q Remote control transmission / reception unit 104 Left and right wind direction plate (wind direction control unit)
105 Vertical wind direction plate (wind direction control unit)
107 Air Intake Port 110 Human Detection Unit 111 Surface Temperature Detection Unit 112 Air Conditioned Space Shape Detection Unit 123 Room Temperature Sensor 130 Control Unit 131 Surface Temperature Determination Unit 134 Air Direction Range Determination Unit 135 Residential Time Determination Unit 136 Air Conditioning Control Unit 150 Load 151 Compressor motor 152 Blower fan motor 153 Motor for right and left wind direction plate (wind direction control unit)
154 Vertical wind direction plate motor (wind direction control unit)

Claims (9)

Person detection means for detecting the position of the occupant, surface temperature detection means for detecting the surface temperature of the occupant, and control means for controlling the wind direction based on information from the person detection means and the surface temperature detection means And
The control means includes a function of directing the wind direction toward the occupant and a function of changing the wind direction toward the occupant based on the surface temperature of the occupant.
An air conditioner characterized by that. The control means controls the timing of changing the wind direction toward the occupant based on the surface temperature.
The air conditioner according to claim 1. The control means swings the wind direction in a predetermined range including the occupant after changing the wind direction toward the occupant.
The air conditioner according to claim 1 or 2, characterized in that. The surface temperature is the surface temperature of the occupant's feet during heating or the surface temperature of the floor of the occupants' feet.
The air conditioner as described in any one of Claims 1-3 characterized by the above-mentioned. The control means changes a wind direction toward the occupant when the occupant's occupancy time exceeds a predetermined value.
The air conditioner as described in any one of Claims 1-4 characterized by the above-mentioned. Person detection means for detecting the position of the occupant, surface temperature detection means for detecting the surface temperature of the occupant, and control means for controlling the wind direction based on information from the person detection means and the surface temperature detection means And
The control means is based on the function of performing a preliminary operation of the air conditioner at a predetermined time, the function of directing the air direction toward the occupant at the start of the air conditioning operation after the preliminary operation, and the surface temperature of the occupant. A function of changing a wind direction toward the occupant;
An air conditioner characterized by that. The control means controls the timing of changing the wind direction toward the occupant based on the surface temperature.
The air conditioner according to claim 6. The control means swings the wind direction in a predetermined range including the occupant after changing the wind direction toward the occupant.
The air conditioner according to claim 6 or 7, characterized in that. The surface temperature is the surface temperature of the occupant's feet during heating or the floor surface temperature of the occupants' feet.
The air conditioner according to any one of claims 6 to 8, wherein the air conditioner is provided.

Images