JP2016029313A - Air conditioner indoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner indoor unit capable of suppressing cold air from a floor surface or a walls surface around a human body and low in temperature from beating against the human body, and improving user amenity.SOLUTION: An air conditioner indoor unit 10 conditioning indoor air comprises: a vertical-air-direction control plate 14 rotatable vertically and a horizontal-air-direction control plate 15 rotatable horizontally, the control plates 14 and 15 controlling an air direction of conditioned air blown from a fan 18; an infrared sensor 16 detecting a position of a human body 3 present in a room 1; and a control unit 100 controlling attitudes of the vertical-air-direction control plate 14 and the horizontal-air-direction control plate 15. The control unit 100 controls the attitudes of the vertical-air-direction control plate 14 and the horizontal-air-direction control plate 15 so as to direct the air blown from the fan 18 toward a flow surface around the position of the human body 3 between a housing 11 of the indoor unit 10 and the position of the human body 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit of an air conditioner provided with means for detecting a human body.

  In a conventional air conditioner, a configuration is known in which an indoor unit includes an infrared sensor or a camera and detects the presence and position of a person in the room. Such an air conditioner is configured to control the direction or amount of air that blows out conditioned air in accordance with the detected position of the person in the room and the amount of activity (for example, Patent Document 1).

JP-A-5-223319 (see FIGS. 8 and 9)

  In such an air conditioner, when the heating operation is performed, the wind direction is controlled toward the detected person, and therefore, the location where the warm air from the air conditioner is hit on the human body is warm. However, when a wall surface or floor surface having a low temperature exists around the human body, cold air that is cooled by the wall surface or floor surface and flows by natural convection may hit the human body. In this case, there is a problem of impairing the user's comfort because it is felt cold at the location where the cold air hits.

  In view of such a problem, the present invention suppresses the cold air from the floor or wall surface around the human body from hitting the human body and can improve the comfort of the user. The purpose is to provide.

  An indoor unit of an air conditioner according to the present invention includes a housing in which an air inlet and an air outlet are formed, a heat exchanger disposed in an air passage that communicates the air inlet and the air outlet inside the housing, and A fan, a vertical wind direction control plate that can rotate in the vertical direction and a left and right wind direction control plate that can rotate in the left and right direction, and a room that is installed in the casing and controls the wind direction of the air blown from the fan. It has a human body detecting means for detecting the position of the human body and a control unit for controlling the postures of the vertical and horizontal wind direction control plates and the left and right wind direction control plates, and the control unit detects air blown from the fan during heating operation. The postures of the up / down air direction control plate and the left / right air direction control plate are controlled so as to face the floor surface around the human body position and between the housing and the human body position.

  The indoor unit of the air conditioner according to the present invention controls the wind direction during heating operation, thereby blocking cold air from the floor surface or wall surface around the human body by air blown from the fan, Comfort can be improved.

It is a right front perspective view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. It is a right lower perspective view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. It is a longitudinal cross-sectional view (sectional drawing in the A surface of FIG. 1) of the indoor unit of the air conditioner in Embodiment 1 of this invention. It is a control block diagram of the indoor unit of the air conditioner in Embodiment 1 of the present invention. It is a flowchart which shows the wind direction control process in Embodiment 1 of this invention. It is a figure which shows the example of the airflow by the wind direction control process in Embodiment 1 of this invention. It is a figure which shows another example of the airflow by the wind direction control process in Embodiment 1 of this invention. It is a flowchart which shows the wind direction control process in Embodiment 2 of this invention. It is a flowchart which shows the wind direction control process in Embodiment 3 of this invention. It is a figure which shows the example of the airflow by the wind direction control process in Embodiment 4 of this invention. It is a figure which shows schematic structure of the up-down wind direction control board in Embodiment 5 of this invention, and a left-right wind direction control board.

  Hereinafter, an embodiment of an indoor unit of an air conditioner according to the present invention will be described in detail based on the drawings.

Embodiment 1 FIG.
1 and 2 are perspective views showing an appearance of the indoor unit 10 of the air conditioner according to Embodiment 1 of the present invention. Specifically, FIG. 1 is a perspective view of the indoor unit 10 viewed from the right front side, and FIG. 2 is a perspective view of the indoor unit 10 viewed from the lower right side. FIG. 1 shows a state in which an up / down air direction control plate 14 to be described later is closed, and FIG. .

  As shown in FIGS. 1 and 2, the indoor unit 10 includes a substantially box-shaped housing 11. A suction port 12 for sucking indoor air is formed on the upper surface of the housing 11, and a blower outlet 13 for blowing out conditioned air is formed at the lower portion of the front surface. Further, the air outlet 13 is provided with an up / down air direction control plate 14 and a left / right air direction control plate 15 for controlling the air direction of the blown air. The vertical air direction control plate 14 is supported by a rotary shaft (not shown) so as to be rotatable in the vertical direction, and controls the vertical air direction of the blown air. The left / right air direction control plate 15 is supported by a rotation shaft (not shown) so as to be rotatable in the left / right direction, and controls the air direction in the left / right direction of the blown air. Furthermore, a movable infrared sensor 16 is provided on the lower portion of the front surface of the housing 11 and above the air outlet 13. The infrared sensor 16 detects a heat source while scanning left and right to detect a position where a human body exists.

  3 is a longitudinal sectional view of the indoor unit 10 of FIG. As shown in FIG. 3, a heat exchanger 17 and a fan 18 are arranged inside the indoor unit 10. The heat exchanger 17 and the fan 18 are disposed in an air passage that allows the suction port 12 and the blower port 13 to communicate with each other. When the operation of the indoor unit 10 is started, the fan 18 is rotated so that indoor air is sucked into the indoor unit 10 from the suction port 12. The air sucked into the indoor unit 10 is heat-exchanged by the heat exchanger 17 to be harmonized air and blown out from the outlet 13 into the room.

  FIG. 4 is a control block diagram of the indoor unit 10. The indoor unit 10 includes a control unit 100 for controlling each unit. As shown in FIG. 4, the control unit 100 includes an input unit 101 to which information for control is input, a CPU 102 that performs arithmetic processing and determination processing, and a memory 103 that stores various control setting values and programs. And an output unit 104 that processes output information of a calculation result or a determination result in the CPU 102.

  The input unit 101 receives the operation mode, set temperature, set humidity, wind speed setting and operation information set by the remote controller 19 and control information (detection information) from the infrared sensor 16. The Then, according to the output result output from the output unit 104, the rotation speed of the fan drive motor 18m that drives the fan 18 to rotate, the rotation speed (rotation angle) of the vertical drive motor 14m that drives the vertical wind direction control plate 14, And the rotation speed (rotation angle) of the left / right drive motor 15m for driving the left / right wind direction control plate 15 is set.

  Next, wind direction control processing in the indoor unit 10 configured as described above will be described with reference to FIGS. 5 and 6. FIG. 5 is a flowchart showing the flow of the wind direction control process in the present embodiment, and FIG. 6 is a diagram for explaining an example of the airflow by the process. In the example of FIG. 6, the indoor unit 10 is installed in the room 1, and the window 2 is on the left side toward the indoor unit 10.

  The wind direction control process of the present embodiment is executed by the control unit 100 when the indoor unit 10 starts operating. In this process, first, it is determined whether or not the heating operation is performed (S1). And when it is heating operation (S1: YES), a human body position is detected by the infrared sensor 16 (S2). In S2, the heat source information obtained from the detection information of the infrared sensor 16 is processed by the CPU 102 of the control unit 100, and the information about the presence and position of the human body 3 is obtained by comparing with the control setting value of the memory 103. Can do. On the other hand, if it is not the heating operation (S1: NO), other processing is performed according to the set operation information (S3).

  Subsequently, it is determined whether or not the human body 3 exists in the room (S4). And when the human body 3 exists (S4: YES), the wind direction of the conditioned air blown out is changed based on the detected human body position (S5).

  Here, in the conventional air conditioner, when the human body 3 is present in the room during the heating operation, control for improving the comfort of the user is performed by blowing out warm air directly toward the human body 3. However, in the room 1 shown in FIG. 6, the window 2 with low heat insulation performance is at a lower temperature than other wall surfaces. The air near the window 2 in the room 1 cooled by the low-temperature window 2 (indicated by a broken line in FIG. 6, hereinafter referred to as “cold air CF”) reaches the floor surface by natural convection. The cold air CF reaching the floor surface spreads over the floor surface and reaches the human body 3 existing in the room 1. As a result, the place where the warm air blown out from the indoor unit 10 is warmed against the human body 3 is warm, while the place where the cold air CF cooled by the window 2 hits the body is felt cold, which is comfortable for the user. Will be reduced.

  Therefore, in the present embodiment, the air blown from the air outlet 13 is the floor surface between the human body position and the indoor unit 10 so that the cold air CF cooled by the window 2 does not reach the human body 3. The wind direction is changed by controlling the postures of the up / down air direction control plate 14 and the left / right air direction control plate 15 toward the floor surface closer to the indoor unit 10 than the human body position in the vicinity of the human body position. Specifically, in S5, first, based on the detected human body position, the rotation angles of the vertical wind direction control plate 14 and the left and right wind direction control plate 15 when the wind direction is directed to the human body position are respectively obtained. Subsequently, a predetermined angle (for example, 5 to 15) is set to the obtained rotation angle of the vertical air direction control plate 14 so that the direction of the vertical air direction control plate 14 is directed downward by a predetermined angle (for example, 5 to 15 degrees). Add (or subtract) degrees). Subsequently, the vertical drive motor 14m and the left / right drive motor 15m are driven based on the obtained rotation angle.

  By changing the wind direction in this manner, as shown in FIG. 6, the conditioned air flow AF (shown by a solid line in FIG. 6) blown out from the indoor unit 10 is closer to the indoor unit 10 than the human body 3. To reach. And the airflow AF which reached | attained the floor surface reaches | attains a human body position, expanding widely in the direction orthogonal to the line which connects the indoor unit 10 and the human body 3 by colliding with a floor surface. A part of the airflow AF that reaches the human body 3 while spreading greatly flows between the human body 3 and the window 2, so that the cold CF (shown by a broken line in FIG. 6) cooled by the low-temperature window 2 is applied to the human body 3. Suppress reaching.

  In addition, when the human body 3 does not exist (S4: NO), the normal heating operation by a predetermined wind direction is performed. And the process of S1 to S7 is repeated until the driving | operation of the indoor unit 10 stops (S7: YES).

  As described above, in the present embodiment, the airflow AF of the air blown from the indoor unit 10 is directed to the floor surface around the human body position and between the human body position and the indoor unit 10. Thus, the airflow AF can be sent between the human body 3 and the floor or wall surface having a low temperature. Thereby, it is possible to block the cool air CF from the window 2 and suppress the arrival at the human body 3. As a result, user comfort can be enhanced.

  In the above description, the case where the window 2 is provided on the left wall facing the indoor unit 10 has been described with reference to FIG. 6. However, the case where the window 2 is provided on the right wall facing the indoor unit 10 is also described. The same effect can be obtained. Furthermore, as shown in FIG. 7, the same effect can be obtained also when the indoor unit 10 is installed on the wall surface on which the window 2 is provided. FIG. 7 is a diagram showing another example of the airflow by the wind direction control process in the present embodiment. As shown in FIG. 7, even when the indoor unit 10 is installed on the wall surface on which the window 2 is provided, the airflow AF (shown by a solid line in FIG. 7) blown out from the indoor unit 10 By facing the floor near the machine 10, it is possible to suppress the cold CF (shown by a broken line in FIG. 7) cooled by the wall surface from reaching the human body 3.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. The second embodiment is different from the first embodiment in that the wind direction control process is performed using the temperature distribution information of the floor and wall surfaces detected by the infrared sensor 16. Other configurations are the same as those in the first embodiment.

  FIG. 8 is a flowchart showing the wind direction control process in the second embodiment. In FIG. 8, the same reference numerals as those in FIG. In this process, first, it is determined whether or not the heating operation is performed (S1). And when it is heating operation (S1: YES), a human body position is detected by the infrared sensor 16 (S2). On the other hand, if it is not the heating operation (S1: NO), other processing is performed according to the set operation information (S3).

  Subsequently, it is determined whether or not the human body 3 is present in the room 1 (S4). When the human body 3 exists (S4: YES), the infrared sensor 16 detects the temperature distribution of the floor and the wall (S11). Subsequently, based on the detected temperature distribution, it is determined whether or not there is a location where the temperature is locally low (hereinafter referred to as “low temperature location”) (S12). As an example, a location where the temperature is 2 ° C. or more lower than the average floor temperature of the entire room 1 is defined as a “low temperature location”. And when there exists a low temperature location (S12: YES), based on the detected human body position, the air which blows off from the blower outlet 13 is a floor surface between a human body position and the indoor unit 10, Comprising: Human body position , The wind direction is changed so as to face the floor surface closer to the indoor unit 10 than the human body position (S5). The specific process of changing the wind direction in S5 is the same as in the first embodiment.

  On the other hand, when the human body 3 does not exist (S4: NO), a normal heating operation is performed (S6). Further, when there is no low temperature portion (S12: NO), the wind direction is changed by controlling the postures of the up / down air direction control plate 14 and the left / right air direction control plate 15 so that the conditioned air blown out is directed toward the human body position ( S13). Specifically, first, based on the detected human body position, the rotation angles of the up / down wind direction control plate 14 and the left / right wind direction control plate 15 so as to go to the detected human body position are obtained. Based on the obtained rotation angle, the vertical drive motor 14m and the left / right drive motor 15m are driven. And the process of S1 to S7 is repeated until the driving | operation of the indoor unit 10 stops (S7: YES).

  As described above, in the present embodiment, the wind direction is changed around the human body only when there is a low temperature spot, that is, when the human body 3 is exposed to air cooled by a cold floor or wall surface and the user feels uncomfortable. The user's comfort can be enhanced by blocking the cool air toward the floor. In addition, when there is no low temperature location, cold air from the floor surface or wall surface does not hit the human body 3, so that the warm air directly hits the human body 3 by directing the wind direction to the human body position as in the past. It is possible to increase the sensible temperature and carry out comfortable air conditioning.

Embodiment 3 FIG.
Subsequently, Embodiment 3 of the present invention will be described. The third embodiment is different from the second embodiment in that the wind direction control process is performed using the distance between the human body position and the low temperature portion. Other configurations are the same as those in the second embodiment.

  FIG. 9 is a flowchart showing the wind direction control process in the third embodiment. In FIG. 9, the same reference numerals as those in FIG. In this process, first, it is determined whether or not the heating operation is performed (S1). And when it is heating operation (S1: YES), a human body position is detected by the infrared sensor 16 (S2). On the other hand, if it is not the heating operation (S1: NO), other processing is performed according to the set operation information (S3).

  Subsequently, it is determined whether or not the human body 3 is present in the room 1 (S4). When the human body 3 exists (S4: YES), the infrared sensor 16 detects the temperature distribution of the floor and the wall (S11). Subsequently, based on the detected temperature distribution, it is determined whether or not there is a low temperature portion (S12). If there is a low temperature location (S12: YES), the distance between the detected human body position and the low temperature location is calculated (S21), and the calculated distance is compared with a predetermined threshold (S22). Here, the predetermined threshold is, for example, 1 to 3 meters.

  When the distance between the human body position and the low-temperature location is smaller than the predetermined threshold (S22: YES), the air blown out from the air outlet 13 between the human body position and the indoor unit 10 based on the detected human body position. The wind direction is changed so as to be directed to the floor surface near the human body position and closer to the indoor unit 10 than the human body position (S5). The specific process of changing the wind direction in S5 is the same as in the first embodiment. On the other hand, when the distance between the human body position and the low-temperature location is equal to or greater than the threshold (S22: NO), the cold floor or wall is located far away from the human body, and the human body is cooled by the cold floor or wall in the first place. It can be determined that it is not affected by Therefore, as in the conventional case, the wind direction is changed by controlling the postures of the up / down air direction control plate 14 and the left / right air direction control plate 15 so that the conditioned air blown out is directed toward the human body position (S13). The specific process of changing the wind direction in S13 is the same as in the second embodiment.

  In addition, when a human body does not exist (S4: NO), normal heating operation is performed (S6). Further, when there is no low-temperature location (S12: NO), the conditioned air blown out is directed toward the human body position as in the case where the distance between the human body position and the low-temperature location is equal to or greater than a predetermined threshold (S22: NO). Next, the postures of the up / down air direction control plate 14 and the left / right air direction control plate 15 are controlled to change the air direction (S13). And the process of S1 to S7 is repeated until the driving | operation of the indoor unit 10 stops (S7: YES).

  As described above, in the present embodiment, the comfort of the user can be improved by changing the wind direction only when there is a low-temperature location where the temperature is low locally and the distance between the human body position and the low-temperature location is short. Can be increased. In addition, if there is no cold floor or wall, and if the distance from the human body is long even if there is a low-temperature location, it is considered that cold air from the floor or wall will not hit the human body. In the same way as in the past, by directing the wind direction to the human body position, the warm air directly hits the human body, and it is possible to increase the sensible temperature and perform comfortable air conditioning.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described. The fourth embodiment is different from the second embodiment in the method of changing the wind direction in the wind direction control process. Specifically, in the second embodiment, when the human body and the low-temperature location are present in the room 1, the wind direction is the floor surface between the human body position and the indoor unit 10, and in the vicinity of the human body position, more than the human body position. The posture (rotation angle) of the up / down air direction control plate 14 or the left / right air direction control plate 15 is set so as to face the floor near the indoor unit 10 (S5). On the other hand, in the present embodiment, when the human body 3 and the low temperature spot are present in the room 1, the wind direction is the floor surface between the human body position and the low temperature spot, and is closer to the human body position than the human body position. The second embodiment is different from the second embodiment in that the posture (rotation angle) of the up / down air direction control plate 14 or the left / right air direction control plate 15 is controlled so as to face the floor near the low temperature portion. Other configurations are the same as those in the second embodiment.

  FIG. 10 is a diagram for explaining the airflow by the wind direction control process in the present embodiment. The flow of the wind direction control process in the present embodiment is the same as the wind direction control process in the second embodiment shown in the flowchart of FIG. And when the human body 3 exists in the room 1 (S4: YES), and there is a low temperature location based on the temperature distribution detected by the infrared sensor 16 (S12: YES), the conditioned air blown out is the human body position and the low temperature. The wind direction is changed so as to be directed to the floor surface between the locations and in the vicinity of the human body position and closer to the colder location than the human body position (S5). Specifically, first, based on the detected human body position, the rotation angles of the vertical wind direction control plate 14 and the left and right wind direction control plate 15 when the wind direction is directed to the human body position are respectively obtained. Subsequently, the determined rotation angle of the left and right air direction control plate 15 is set to a predetermined angle (such as 5 to 15 degrees) so that the direction of the left and right air direction control plate 15 is directed toward the low temperature portion 4. For example, 5 to 15 degrees) is added (or subtracted). Subsequently, the vertical drive motor 14m and the left / right drive motor 15m are driven based on the obtained rotation angle.

  In the present embodiment, by changing the wind direction as described above, as shown in FIG. 10, the air flow AF (shown by a solid line in FIG. 10) blown out from the indoor unit 10 is Flows between the human body 3 and the window 2. Thereby, the cold air CF (indicated by a broken line in FIG. 10) cooled by the low-temperature window 2 is blocked by the airflow AF and is prevented from reaching the human body 3. As a result, comfort can be enhanced without the user feeling cold.

Embodiment 5 FIG.
Next, a fifth embodiment of the present invention will be described. The fifth embodiment is different from the first embodiment in the configuration of the up / down wind direction control plate 14 and the left / right wind direction control plate 15. Other configurations are the same as those in the first embodiment.

  FIG. 11 is a diagram showing a schematic configuration of the up / down air direction control plate 14A and the left / right air direction control plate 15A in the present embodiment. As shown in FIG. 11, the up / down air direction control plate 14A is composed of up / down air direction control plates 141 and 142 divided into left and right. The vertical air direction control plates 141 and 142 are driven independently by vertical drive motors 141m and 142m, respectively. Thereby, it becomes possible to blow the airflow from the indoor unit 10 in different vertical directions on the left and right. The left / right airflow direction control plate 15A includes left / right airflow direction control plates 151 and 152 which are divided into left and right. The left and right wind direction control plates 151 and 152 are independently driven by left and right drive motors 151m and 152m, respectively. Thereby, it becomes possible to blow the airflow from the indoor unit 10 in different left and right directions.

  By configuring the up / down wind direction control plate 14A and the left / right wind direction control plate 15A as described above, the wind direction can be changed as follows in S5 of the wind direction control process. First, by setting the vertical wind direction control plates 141 and 142 to different rotation angles, one wind direction is directed to the human body position, and the other wind direction is set between the human body position and the indoor unit 10 as in the first embodiment. Can be directed to the floor between. Further, by setting the left and right wind direction control plates 151 and 152 to different rotation angles, one wind direction is directed to the human body position, and the other wind direction is set between the human body position and the low temperature portion as in the fifth embodiment. Can be directed to the floor.

  In the present embodiment, by directing one wind direction of the air blown out from the fan 18 toward the human body position as in the conventional case, warm air directly hits the human body 3 to increase the temperature of the sensation and to increase the other wind direction around the human body. By blocking the cold air toward the floor surface, the air cooled by the cold floor or wall surface can be blocked and the comfort of the user can be enhanced.

  The above is the description of the embodiment of the present invention. However, the present invention is not limited to the configuration of the above-described embodiment, and various modifications or combinations are possible within the scope of the technical idea. . For example, in the above-described embodiment, the movable infrared sensor 16 detects both the human body position and the temperature distribution of the wall and the floor. However, the present invention is not limited to this. For example, if temperature distribution information is not required as in the first embodiment, the human body position may be detected by a camera instead of the infrared sensor 16. Furthermore, in order to detect a human body position and temperature distribution separately, it is good also as a structure provided with a some infrared sensor or camera.

  Moreover, in the said embodiment, although the window 2 was demonstrated as an example as a location where the air of the room | chamber 1 is cooled, not only the window 2, but the location where the heat insulation performance of a wall is low, the confidentiality of a door, etc. is low, and there is cold from the outside. When there is an intruding place or a place where the temperature is locally low on the floor, the comfort of the user can be improved by performing the wind direction control process of the above embodiment.

  Furthermore, in order to further suppress the air cooled by the window 2 from reaching the human body 3, the rotational speed of the fan 18 may be increased in addition to the process of changing the wind direction as described above. As a result, the amount of air blown from the indoor unit 10 increases, and the speed of the airflow AF flowing between the human body 3 and the window 2 increases. As a result, the effect of suppressing the air cooled by the window 2 from reaching the human body 3 can be further enhanced. Furthermore, the rotational speed of the fan 18 may be increased or decreased according to the distance between the human body position and the low temperature location. For example, when the distance between the human body position and the low temperature portion is short, the rotational speed is increased, and when the distance is short, the fan drive motor 18m is controlled so as to decrease the rotational speed. Thereby, the wind direction and air volume according to the condition of the room 1 can be set, and more comfortable air conditioning can be implemented.

  Further, in the fifth embodiment, by moving both the vertical wind direction control plates 141 and 142 and the left and right wind direction control plates 151 and 152 independently, the position of the human body and the indoor unit 10 as in the first embodiment. It is also possible to direct the other wind direction to the floor surface between the human body position and the low temperature part as in the fifth embodiment. Furthermore, in the above-described embodiment, both the up / down air direction control plate 14A and the left / right air direction control plate 15A are divided into left and right, but the present invention is not limited thereto, and the up / down air direction control plate 14A or the left / right air direction control plate is not limited thereto. Only one of 15A may be divided into left and right.

  1 indoor, 2 windows, 3 human body, 4 low temperature location, 10 indoor unit, 11 housing, 12 air inlet, 13 air outlet, 14, 14A, 141, 142 vertical airflow direction control plate, 14m, 141m, 142m vertical drive motor, 15, 15A, 151, 152 Left / right wind direction control plate, 15m, 151m, 152m Left / right drive motor, 16 Infrared sensor, 17 Heat exchanger, 18 Fan, 18m Fan drive motor, 19 Remote control, 100 Control unit, 101 Input unit, 102 CPU, 103 memory, 104 output unit, AF air flow, CF cold air.

Claims (6)

A housing in which an inlet and an outlet are formed;
A heat exchanger and a fan arranged in an air passage that allows the suction port and the air outlet to communicate with each other inside the housing;
An up / down air direction control plate that can be rotated in the up / down direction and a left / right air direction control plate that can be rotated in the left / right direction;
A human body detecting means installed in the housing for detecting the position of a human body existing in the room;
A control unit for controlling the posture of the up-and-down air direction control plate and the left-and-right air direction control plate,
The controller is configured to direct the air blown from the fan during the heating operation to a floor surface around the detected human body position and to a floor surface between the housing and the human body position. An indoor unit of an air conditioner that controls the postures of the up / down air direction control plate and the left / right air direction control plate. Further comprising a temperature distribution detecting means capable of measuring the temperature distribution of the indoor floor surface and wall surface;
The controller is
In the temperature distribution of the floor surface and the wall surface by the temperature distribution detection means, it is determined whether or not a low temperature portion is detected that is lower than the average temperature of the temperature distribution by a certain value or more,
When the low-temperature spot is detected, the up-and-down airflow direction directs the air blown from the fan toward the floor surface around the human body position and between the housing and the human body position. Controlling the posture of the control plate and the left and right wind direction control plate,
The posture of the up / down air direction control plate and the left / right air direction control plate is controlled so that air blown from the fan is directed to the human body position when the low temperature portion is not detected. The indoor unit of the described air conditioner. The controller is
When the low temperature spot is detected and the distance between the low temperature spot and the human body position is less than a threshold, the air blown from the fan is a floor surface around the human body position, and Control the posture of the up-and-down air direction control plate and the left and right air-direction control plate so as to face the floor surface between the housing and the human body position,
When the low-temperature location is detected, and the distance between the low-temperature location and the human body position is equal to or greater than a threshold value, the up-and-down airflow direction control plate and the air direction control plate to direct the air blown from the fan toward the human body location The indoor unit of an air conditioner according to claim 2, wherein the posture of the left / right air direction control plate is controlled. The vertical wind direction control plate comprises a first vertical wind direction control plate and a second vertical wind direction control plate that can be independently driven,
The control unit controls the posture of the first vertical airflow direction control plate so that one wind direction of the air blown from the fan is directed to the human body position, and the other wind direction of the air blown from the fan The attitude of the second up-and-down airflow direction control plate is controlled so as to be directed to a floor surface around the human body position and between the housing and the human body position. The indoor unit of the air conditioner according to any one of Items 1 to 3. A housing in which an inlet and an outlet are formed;
A heat exchanger and a fan arranged in an air passage that allows the suction port and the air outlet to communicate with each other inside the housing;
An up / down air direction control plate that can be rotated in the up / down direction and a left / right air direction control plate that can be rotated in the left / right direction;
A human body detecting means installed in the housing for detecting the position of a human body existing in the room;
Temperature distribution detecting means for detecting the temperature distribution of the indoor floor and wall;
A control unit for controlling the posture of the up-and-down air direction control plate and the left-and-right air direction control plate,
The control unit, during heating operation, air blown from the fan is a floor surface around the detected human body position, in the temperature distribution of the floor surface and the wall surface, the temperature is an average of the temperature distribution An indoor unit of an air conditioner, wherein the orientation of the up / down air direction control plate and the left / right air direction control plate is controlled so as to be directed to a floor surface between a low temperature location lower than a temperature by a certain value or more and the human body position. The left and right wind direction control plates are each composed of a first left and right wind direction control plate and a second left and right wind direction control plate that can be driven independently,
The control unit controls the posture of the first left / right air direction control plate so that one wind direction of air blown from the fan is directed to the human body position, and the other wind direction of air blown from the fan The attitude of the second left / right airflow direction control plate is controlled so as to be directed to a floor surface around the human body position and between the low-temperature location and the human body position. Item 6. An air conditioner indoor unit according to Item 5.

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