JP2018128155A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner with high comfortability.SOLUTION: An air conditioner 100 includes a human detection unit K5 configured to detect a person in a room where an indoor machine 10 is installed, and a control unit K configured to direct a vertical wind direction plate to a ceiling on a near side with respect to the person detected by the human detection unit K5, in a view from the indoor machine 10. With this constitution, air-conditioned air flows to a depth side through the ceiling, and part of the air lowers so as to wrap a person. Consequently, air-conditioning can be performed with high comfortability, without making a person exposed to direct wind.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an air conditioner that performs air conditioning.

As a technique related to an air conditioner, for example, Patent Document 1 describes that “the wind direction of conditioned air is changed in the direction of a side wall in front of the detected position of the person as viewed from the indoor outlet”. Yes.
Further, Patent Document 2 describes that “controls the airflow based on the shape of the object detected by the object detection unit”.

Japanese Patent Laying-Open No. 2015-203557 JP, 2006-61457, A

However, in the technique described in Patent Document 1, when a person is away from the side wall or the wind is blocked by furniture or the like placed in the immediate vicinity of the side wall, the air-conditioned wind is difficult to reach the person. Therefore, there is room for further improving the comfort of air conditioning.
Further, in Patent Document 2, there is a possibility that the wind passing through the object directly hits the person, and particularly in cooling operation, there is a possibility that comfort is impaired by the cold wind directly hitting the person.

  Then, this invention makes it a subject to provide an air conditioner with high comfort.

  In order to solve the above-mentioned problems, the present invention is characterized in that a wind direction plate is directed toward a ceiling in front of a person detected by a person detection unit as viewed from an indoor unit.

  According to the present invention, a highly comfortable air conditioner can be provided.

It is a front view of the indoor unit with which the air conditioner which concerns on 1st Embodiment of this invention is equipped, an outdoor unit, and a remote control. FIG. 2 is a cross-sectional view taken along the line II-II of the indoor unit shown in FIG. It is a perspective view which shows the internal structure of the outdoor unit of the air conditioner which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows the refrigerant circuit of the air conditioner which concerns on 1st Embodiment of this invention. It is a front view of the remote control with which the air harmony machine concerning a 1st embodiment of the present invention is provided. 1 is a plan view including an imaging unit of an air conditioner according to a first embodiment of the present invention. It is a functional block diagram of the air conditioner concerning a 1st embodiment of the present invention. It is a flowchart which shows the process which the control part of the air conditioner which concerns on 1st Embodiment of this invention performs. It is explanatory drawing which shows the example of the visible light image imaged by the imaging part of the air conditioner which concerns on 1st Embodiment of this invention. It is a flowchart regarding the determination of the ventilation method which the control part of the air conditioner which concerns on 1st Embodiment of this invention performs. It is a flowchart regarding the ceiling airflow air-conditioning which the control part of the air harmony machine concerning a 1st embodiment of the present invention performs. (A) is a side view which shows the flow of air in ceiling airflow air conditioning, (b) is a top view in case a person exists in the center of the left-right direction seeing from an indoor unit, (c) is seen from an indoor unit. It is a top view when there is a person on the left side. (A) is a side view when a person is relatively far from the indoor unit, (b) is a plan view of (a), and (c) is a case where an indoor person is sitting on a chair. It is a side view, (d) is a top view of (c). (A) is explanatory drawing in case two persons stand in the front-back direction seeing from an indoor unit, (b) is a top view of (a). (A) is explanatory drawing in case two persons are sitting on a chair in the left-right direction seeing from an indoor unit, (b) is a top view of (a). (A) is a side view in case the ceiling fan is installed in the ceiling, (b) is a top view of (a). It is a flowchart which shows the process which the control part of the air conditioner concerning 2nd Embodiment of this invention performs. It is a front view of the indoor unit with which the air conditioner which concerns on 3rd Embodiment of this invention is provided. It is a flowchart which shows the process which the control part of the air conditioner concerning 3rd Embodiment of this invention performs. It is a longitudinal cross-sectional view of the air conditioner which concerns on the modification of this invention.

<< First Embodiment >>
<Configuration of air conditioner>
FIG. 1 is a front view of an indoor unit 10, an outdoor unit 30, and a remote controller 40 included in the air conditioner 100 according to the first embodiment.
The air conditioner 100 is an apparatus that performs air conditioning by circulating a refrigerant in a heat pump cycle. As shown in FIG. 1, the air conditioner 100 includes an indoor unit 10 installed indoors (air-conditioned space), an outdoor unit 30 installed outdoors, and a remote controller 40 operated by a user. Yes.

The indoor unit 10 includes a remote control reception unit 11, an imaging unit 12, a temperature detection unit 13, a near-infrared light source 14, and a foot monitor 15.
The remote control receiving unit 11 receives a predetermined signal from the remote control 40 by wireless communication such as infrared communication. For example, the remote control receiving unit 11 receives signals from the remote control 40 such as an operation / stop command, a change in set temperature, a timer setting, and a change in operation mode.

The imaging unit 12 includes a CCD image sensor (Charge Coupled Device image sensor), for example, and images a room in which the indoor unit 10 is installed.
The temperature detection part 13 is a thermopile, for example, and detects the temperature of the room | chamber interior in which the indoor unit 10 is installed. Various sensors including the imaging unit 12 and the temperature detection unit 13 are referred to as “sensor unit R”.

  The near-infrared light source 14 is a light source that emits near-infrared light, and is turned on when an object is detected based on a near-infrared image. In the example illustrated in FIG. 1, an imaging unit 12, a temperature detection unit 13, and a near-infrared light source 14 are installed near the center in the width direction of the indoor unit 10.

  The foot monitor 15 is a display (for example, LED: Light Emitting Diode) that lights up when the foot of a person in the room is detected. By lighting the foot monitor 15 in this way, the user can confirm that his / her foot is detected.

  Although omitted in FIG. 1, the indoor unit 10 and the outdoor unit 30 are connected via a refrigerant pipe and connected via a communication line.

2 is a cross-sectional view of the indoor unit 10 shown in FIG.
The indoor unit 10 includes an indoor heat exchanger 16, a drain pan 17, an indoor fan 18, a housing base 19, a dust filter 21, a front panel 22, left and right wind direction plates, in addition to the imaging unit 12 and the like described above. 23 (wind direction plate) and upper and lower wind direction plate 24 (wind direction plate).

The indoor heat exchanger 16 is a heat exchanger that performs heat exchange between the refrigerant flowing through the heat transfer tube 16a and the indoor air.
The drain pan 17 receives condensed water dripping from the indoor heat exchanger 16 when the indoor heat exchanger 16 functions as an evaporator, and is disposed below the indoor heat exchanger 16. In addition, the dew condensation water which fell to the drain pan 17 is discharged | emitted outside via a drain hose (not shown).

The indoor fan 18 is, for example, a cylindrical cross flow fan, and rotates by driving an indoor fan motor 18a (see FIG. 4).
The housing base 19 is a housing in which devices such as the indoor heat exchanger 16 and the indoor fan 18 are installed.

The dust filter 21 removes dust from the air taken in through the air suction port h1, and is installed on the upper and front sides of the indoor heat exchanger 16.
The front panel 22 is a panel installed so as to cover the dust filter 21 on the front side, and is rotatable to the front side with the lower end as an axis. The front panel 22 may not be rotated.

The left and right wind direction plates 23 are plate-like members that adjust the flow direction of the air blown out indoors in the left and right direction. The left / right airflow direction plate 23 is arranged on the downstream side of the indoor fan 18 and is rotated in the left / right direction by driving the left / right airflow direction plate motor 23a (see FIG. 7).
The up-and-down air direction plate 24 is a plate-like member that adjusts the flow direction of the air blown out indoors in the up-and-down direction. The up / down air direction plate 24 is disposed on the downstream side of the indoor fan 18 and is rotated in the up / down direction by driving of the up / down air direction plate motor 24a (see FIG. 7).

  The air sucked through the air suction port h1 exchanges heat with the refrigerant flowing through the heat transfer tube 16a, and the heat-exchanged air is guided to the blowout air path h2. The air flowing through the blowout air path h2 is guided in a predetermined direction by the left and right airflow direction plates 23 and the vertical airflow direction plate 24, and further sent into the room through the air outlet h3.

  As described above, the imaging unit 12 illustrated in FIG. 2 images the room in which the indoor unit 10 is installed, and is installed in the housing base 19. In addition, it is desirable to use the imaging unit 12 having a relatively wide viewing angle so that the ridgeline between the indoor ceiling and the side wall and the ridgeline between the indoor floor and the side wall are within the field of view of the imaging unit 12. In the example shown in FIG. 2, a resin light transmission member D is installed on the front side of the imaging unit 12.

FIG. 3 is a perspective view showing an internal configuration of the outdoor unit 30.
As shown in FIG. 3, the outdoor unit 30 includes a compressor 31, an outdoor heat exchanger 32, an outdoor fan 33, and an electrical component box 34.
The compressor 31 is a device that compresses a low-temperature and low-pressure gas refrigerant by driving a compressor motor 31a (see FIG. 7) and discharges it as a high-temperature and high-pressure gas refrigerant.
The outdoor heat exchanger 32 is a heat exchanger in which heat is exchanged between the refrigerant flowing through the heat transfer tube 32 a and the outside air sent from the outdoor fan 33.

The outdoor fan 33 is a fan that sends outside air to the outdoor heat exchanger 32 by driving of the outdoor fan motor 33a (see FIG. 7), and is installed in the vicinity of the outdoor heat exchanger 32.
The machine room W1 in which the compressor 31 is arranged and the heat exchanger room W2 in which the outdoor heat exchanger 32 and the outdoor fan 33 are arranged are partitioned by a partition plate L.

  The electrical component box 34 shown in FIG. 3 is a box that accommodates an outdoor control circuit 37 and the like, which will be described later, and is disposed on the upper side of the partition plate L. In addition, although not shown in FIG. 3, the outdoor unit 30 is also provided with an expansion valve 35 (see FIG. 4) for reducing the pressure of the refrigerant and a four-way valve 36 (see FIG. 4) for switching the flow path of the refrigerant. ing.

FIG. 4 is an explanatory diagram showing the refrigerant circuit Q of the air conditioner 100.
In addition, the solid line arrow of FIG. 4 has shown the flow of the refrigerant | coolant at the time of heating operation.
Moreover, the broken line arrow of FIG. 4 has shown the flow of the refrigerant | coolant at the time of air_conditionaing | cooling operation.
As shown in FIG. 4, in the refrigerant circuit Q in which the compressor 31, the outdoor heat exchanger 32, the expansion valve 35, and the indoor heat exchanger 16 are sequentially connected in an annular manner via a four-way valve 36, a heat pump cycle is performed. The refrigerant circulates.

  During the cooling operation (see the broken line arrow), the four-way valve 36 is controlled so that the outdoor heat exchanger 32 functions as a condenser and the indoor heat exchanger 16 functions as an evaporator. On the other hand, during the heating operation (see solid arrows), the four-way valve 36 is controlled so that the indoor heat exchanger 16 functions as a condenser and the outdoor heat exchanger 32 functions as an evaporator.

The indoor control circuit 25 shown in FIG. 4 is a circuit for controlling each device of the indoor unit 10 and is installed in the indoor unit 10. The outdoor control circuit 37 is a circuit for controlling each device of the outdoor unit 30 and is accommodated in the electrical component box 34 (see FIG. 3) of the outdoor unit 30 as described above. The indoor control circuit 25 and the outdoor control circuit 37 are connected via a communication line. Hereinafter, the indoor control circuit 25 and the outdoor control circuit 37 are referred to as “control unit K”.
The “control unit K” is configured to include electronic circuits such as a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and various interfaces (not shown). Then, the program stored in the ROM is read out and expanded in the RAM, and the CPU executes various processes.

FIG. 5 is a front view of the remote controller 40 provided in the air conditioner 100.
As shown in FIG. 5, the remote controller 40 includes a display unit 41 that displays predetermined information and an operation unit 42 that is operated by a user. In the example shown in FIG. 5, the display unit 41 of the remote controller 40 displays that the “planning airflow” to be described later is being executed in addition to the current time, set temperature, operation mode, wind speed, and wind direction.

  In addition to the operation buttons pressed when setting the operation mode such as automatic operation, cooling, and heating, the operation unit 42 is provided with operation buttons that are pressed when the set temperature is changed or when the operation is stopped.

  The above-described foot monitor 15 (see FIG. 1) is turned on when the operation button 42a of “3D foot airflow” shown in FIG. 5 is pressed and the feet of a person in the room are detected. In addition, when the operation button 42b of the “room flow” shown in FIG. 5 is pressed by the user, air conditioning based on the room layout is performed.

<First imaging mode / second imaging mode>
FIG. 6 is a plan view including the imaging unit 12 of the air conditioner 100.
In addition, the broken line of FIG. 6 represents the visual field of the imaging part main body 12a. As shown in FIG. 6, the imaging unit 12 includes an imaging unit body 12a, a visible light cut filter 12b, a filter installation unit 12c, a filter gear 12d, and a filter moving motor 12e.

The imaging unit main body 12a is, for example, a CCD image sensor.
The visible light cut filter 12b is a filter that blocks light in the visible light band.
The filter installation part 12c is a translucent resin on which the visible light cut filter 12b is installed. The filter installation portion 12c has an arc shape in plan view (that is, has an opening H that is a gap between one end and the other end of the arc) and is disposed so as to surround the imaging unit main body 12a. Further, gear teeth 121c are provided on a part of the peripheral wall surface of the filter installation portion 12c, and the visible light cut filter 12b is attached to the remaining part of the peripheral wall surface. The gear teeth 121c mesh with a filter gear 12d described below.

The filter gear 12d is a power transmission mechanism for moving the filter installation portion 12c in the circumferential direction in plan view by driving the filter moving motor 12e.
The filter moving motor 12e is a motor used for moving the filter installing portion 12c.

  When the visible light cut filter 12b is not used, the filter moving motor 12e has a predetermined mechanical angle so that light is directly incident on the image pickup unit main body 12a through the opening H as shown in FIG. Rotate by angle. As described above, a mode in which a visible light image is acquired without using the visible light cut filter 12b is referred to as a “first imaging mode”.

  On the other hand, when the visible light cut filter 12b is used, the filter installation unit 12c is moved in the circumferential direction in plan view by driving the filter moving motor 12e, and the visible light cut filter 12b is disposed on the front side of the imaging unit main body 12a. Be placed. Thereby, the light that has passed through the visible light cut filter 12b (that is, the light in the visible light band is blocked) is incident on the imaging unit main body 12a. The light transmitted through the visible light cut filter 12b includes light having a wavelength in the near infrared band. As described above, the mode in which the near-infrared image is acquired through the visible light cut filter 12b is referred to as “second imaging mode”.

  Note that the controller K may turn on the near-infrared light source 14 (see FIG. 1) during execution of the “second imaging mode”. Thereby, since near infrared rays are irradiated indoors, a clear near infrared image can be acquired in the imaging unit main body 12a.

FIG. 7 is a functional block diagram of the air conditioner 100.
The control unit K illustrated in FIG. 7 controls each device of the indoor unit 10 and the outdoor unit 30 based on information from the remote control reception unit 11 and the sensor unit R. In addition to the imaging unit 12 and the temperature detection unit 13, the sensor unit R includes various sensors such as an outside air temperature sensor, a refrigerant pipe temperature sensor, and a compressor temperature sensor (not shown).

As illustrated in FIG. 7, the control unit K includes an imaging control unit K1, a floor plan detection unit K2, a ceiling detection unit K3, an object detection unit K4, a human detection unit K5, an airflow control unit K6, and a storage unit. K7.
The imaging control unit K1 has a function of controlling the imaging unit 12. That is, the imaging control unit K1 has a function of switching from one of the “first imaging mode” and the “second imaging mode” to the other.

The floor plan detection unit K2 detects the floor plan of the entire room based on the visible light image acquired by the imaging unit 12 in the “first imaging mode”.
The ceiling detection unit K3 detects (calculates) the height of the ceiling based on the room layout detected by the floor plan detection unit K2.

The object detection unit K4 detects an object such as furniture or a ceiling fan installed on the ceiling based on the near-infrared image acquired by the imaging unit 12 in the “second imaging mode”.
The person detection unit K5 detects a person in the room where the indoor unit 10 is installed based on the visible light image acquired by the imaging unit 12 in the “first imaging mode”.

The airflow control unit K6 adjusts the air volume and direction of the air blown from the indoor unit 10 based on the detection result of the floor plan detection unit K2 and the like.
In addition to the program executed by the control unit K, the storage unit K7 stores image data that is an imaging result of the imaging unit 12, and detection results of the human detection unit K5 and the like.
Next, as an example, the process of the control unit K during the cooling operation will be described.

FIG. 8 is a flowchart showing processing executed by the control unit K of the air conditioner 100 (see FIG. 7 as appropriate).
In step S101, the control unit K sets the imaging unit 12 to the “first imaging mode” by the imaging control unit K1. That is, the control unit K sets the filter moving motor 12e through the opening H shown in FIG. 6 (that is, not through the visible light cut filter 12b) so that the light is directly incident on the imaging unit main body 12a. To drive. And the control part K images a room | chamber interior by the imaging part 12, and acquires the visible light image of a room | chamber interior.

  In step S102, the control unit K detects a room layout by the floor plan detection unit K2 based on the visible light image. An example thereof will be described with reference to FIG.

FIG. 9 is an explanatory diagram illustrating an example of a visible light image captured by the imaging unit 12 of the air conditioner 100.
In step S102 of FIG. 8, the control unit K extracts ridgelines G1 to G8 of regions (for example, the ceiling C and the side walls) having different luminances from the visible light image obtained by imaging. Usually, the brightness of two adjacent side walls is different, and the brightness of the side walls and the floor and the brightness of the side walls and the ceiling C are also different. Therefore, the control unit K extracts ridgelines G1 to G8 such as side walls based on the luminance difference between adjacent regions. The processing for extracting the ridge lines G1 to G8 in this manner is floor plan detection performed in step S102 of FIG.
Note that the control unit K may detect the ridge lines G1 to G8 based on well-known edge extraction regardless of the luminance difference between the regions.

  Next, in step S103 of FIG. 8, the control unit K calculates the height of the ceiling C by the ceiling detection unit K3. As an example of the calculation method, the control unit K calculates an angle formed by the ceiling C and the ridgelines G1 and G2 (see FIG. 9) of the side walls and other ridgelines G2 and G3 (see FIG. 9). Based on the angle, the height of the ceiling C is calculated.

  Next, in step S104 of FIG. 8, the control unit K calculates the installation height of the indoor unit 10. As an example of the calculation method, the control unit K calculates an angle formed by the ridge lines G6 and G8 (see FIG. 9) of the floor and the side wall and an angle formed by the other ridge lines G7 and G8 (see FIG. 9). Based on the angle, the installation height of the indoor unit 10 is calculated.

  Next, in step S <b> 105 of FIG. 8, the control unit K sets the imaging unit 12 to the “second imaging mode” by the imaging control unit K <b> 1. That is, the control unit K drives the filter moving motor 12e so that the light transmitted through the visible light cut filter 12b shown in FIG. 6 enters the imaging unit main body 12a. And the control part K images the room by the imaging part 12, and acquires the near-infrared image of a room.

  In step S106, the control unit K uses the object detection unit K4 to detect objects existing in the room (in addition to furniture such as desks and chairs, lighting installed on the ceiling C, ceiling fan F, etc .: see FIG. 9). If an example of the detection method of an object is given, the control part K will detect the object which exists in a room by pattern matching based on a near-infrared image. In the example shown in FIG. 9, the ceiling fan F installed on the ceiling C is detected by the object detection unit K4.

Next, in step S107 of FIG. 8, the control unit K sets the imaging unit 12 to the “first imaging mode” again by the imaging control unit K1.
In step S108, the control unit K detects a person existing in the room by the person detection unit K5. For example, the control unit K detects a person existing in the room based on the pattern matching and specifies the position (for example, the coordinates of the head).

  In step S109, the control unit K determines the air-conditioned air blowing method by the airflow control unit K6. That is, based on the processing results of steps S101 to S108, the control unit K obtains rotation speed command values (or rotation angle command values) for the indoor fan motor 18a, the left and right wind direction plate motor 23a, and the up and down wind direction plate motor 24a. calculate. Details of the processing in step S109 will be described with reference to FIG.

FIG. 10 is a flowchart regarding the determination of the blowing method executed by the control unit K of the air conditioner 100 (see FIG. 7 as appropriate).
Prior to the processing shown in FIG. 10, it is assumed that, for example, the “floor airflow” operation button 42b (see FIG. 5) is pressed during the cooling operation.

In step S1091, the control unit K determines whether there is a person who stays in the room for a predetermined time t1 or less. The predetermined time t1 is a threshold value that is a criterion for determining whether or not to perform air blowing air conditioning (S1092) described below, and is set in advance.
In step S1091, when there is a person who stays in the room for a predetermined time t1 or less (S1091: Yes), the process of the control unit K proceeds to step S1092.

  In step S1092, the control unit K performs air conditioning by blowing air. This “wind air conditioning” is an air conditioning method in which air conditioned air is applied to a person detected by the person detection unit K5. That is, in step S1092, the control unit K controls the left / right wind direction plate motor 23a and the up / down wind direction plate motor 24a so that cold air is applied to the person detected by the person detection unit K5. For example, immediately after a person enters the room from the hot outdoors in summer, the body temperature of the person is often high. In such a case (that is, when the staying time is equal to or shorter than the predetermined time t1), the comfort of air conditioning can be improved by directly applying cold air to the person.

On the other hand, in step S1091, when there is no person who stays in the room for the predetermined time t1 or less (S1091: No), the process of the control unit K proceeds to step S1093.
In step S1093, the control unit K determines whether or not the room temperature is the set temperature. That is, the control unit K determines whether or not the absolute value of the difference between the room temperature detected by the temperature detection unit 13 and the set temperature set by operating the remote controller 40 is equal to or less than a predetermined threshold value.

When the room temperature is not the set temperature in step S1093 (S1093: No), the process of the control unit K proceeds to step S1094.
In step S1094, the control unit K performs overall air conditioning. This “whole air conditioning” is an air conditioning method that allows air conditioned to spread throughout the room. That is, in step S1094, the control unit K rotates the left and right wind direction plates 23 (see FIG. 2) to the left and right so that the air-conditioned cold wind is distributed evenly throughout the room. Thereby, the temperature unevenness of the whole room can be reduced and the comfort of air conditioning can be increased. In “overall air conditioning”, the up-and-down wind direction plate 24 (see FIG. 2) may be stationary at a predetermined angle or may be rotated up and down.

On the other hand, when the room temperature is the set temperature in step S1093 (S1093: Yes), the process of the control unit K proceeds to step S1095.
In step S1095, the control unit K performs ceiling airflow air conditioning. The “ceiling air flow air conditioning” is an air conditioning method in which the up / down wind direction plate 24 is directed toward the ceiling C. As a result, the cool air from the indoor unit 10 travels along the ceiling C toward the back of the room, and at least a part of the cool air descends so as to wrap the person in the room. Thereby, since cold air does not directly hit the person in the room, comfortable air conditioning can be performed. Hereinafter, the airflow that travels down the ceiling C and at least a part of which descends is referred to as “ceiling airflow”.

  Next, in step S1096, the control unit K determines whether or not a predetermined time t2 has elapsed since the start of ceiling air-conditioning. The predetermined time t2 is a threshold value that is a criterion for determining whether or not to continue the ceiling airflow air conditioning, and is set in advance. When the predetermined time t2 has not elapsed since the start of the ceiling airflow air conditioning (S1096: No), the control unit K continues the ceiling airflow air conditioning in step S1095. On the other hand, when the predetermined time t2 has elapsed since the start of ceiling air-conditioning (S1096: Yes), the process of the control unit K proceeds to step S1097.

  In step S1097, the control unit K performs alternate fluctuation air conditioning. This “alternate fluctuation air conditioning” is an air conditioning method in which air blowing air conditioning and ceiling airflow air conditioning are alternately performed for a predetermined time. As a result, indoor people can alternately feel direct cooling by air-conditioning and cooling like a shade by ceiling air-conditioning.

  After performing the process of step S1092, S1094, or S1097, the process of the control unit K returns to “START” shown in FIG. 8 (“RETURN” in FIG. 8). Since the height of the ceiling C of the room is hardly changed and the installation height of the indoor unit 10 is hardly changed, the processes of steps S103 and S104 are performed only once (that is, a series shown in FIG. 8). In the second and subsequent processes, the processes in steps S103 and S104 may be skipped). Next, details of the above-described ceiling air-conditioning (S1095 in FIG. 10) will be described.

FIG. 11 is a flowchart relating to ceiling airflow air conditioning executed by the control unit K of the air conditioner 100 (see FIG. 7 as appropriate).
In step S1095a, the control unit K determines whether or not a person is detected by the person detection unit K5. When a person is detected (S1095a: Yes), the process of the control unit K proceeds to step S1095b. On the other hand, when no person is detected (S1095a: No), the control unit K repeats the process of step S1095a.

In step S1095b, the control unit K calculates the position of the person. For example, the control unit K calculates the position (coordinates) of the person's head as the “person's position”.
In step S1095c, the control unit K determines whether or not the distance between the indoor unit 10 and the person is within a predetermined range. More specifically, in step S1095c, the control unit K determines whether or not the distance between the indoor unit 10 and the person is greater than or equal to the first threshold and less than or equal to the second threshold. The aforementioned “first threshold value” and “second threshold value” are threshold values that serve as criteria for determining whether or not the up-and-down wind direction plate 24 (see FIG. 2) is directed toward the ceiling C, and is set in advance. The “second threshold value” is larger than the “first threshold value”. The technical significance of the process in step S1095c will be described below.

When the distance between the indoor unit 10 and the person is outside the predetermined range in step S1095c (S1095c: No), the process of the control unit K proceeds to step S1095d. For example, the distance between the indoor unit 10 and the person is less than the “first threshold value”, and the position of the person may be too close to the indoor unit 10. In such a case, even if the up-and-down wind direction plate 24 is rotated to the limit toward the ceiling C, the air transmitted through the ceiling C hardly reaches the person.
In addition, for example, the distance between the indoor unit 10 and the person is longer than the second threshold, and the position of the person may be too far from the indoor unit 10. In such a case, even if ceiling airflow air conditioning is performed for the person, there is a high possibility that the ceiling airflow diffuses in the back of the room before reaching the person. Therefore, when the distance between the indoor unit 10 and the person is outside the predetermined range (S1095c: No), it is desirable not to perform ceiling airflow air conditioning.

In step S1095d, the control unit K appropriately sets the air volume and direction by the air flow control unit K6. For example, the control unit K performs the overall air conditioning described above.
On the other hand, when the distance between the indoor unit 10 and the person is within the predetermined range in step S1095c (S1095c: Yes), the process of the control unit K proceeds to step S1095e.

In step S1095e, the control unit K calculates the distance between the person and the ceiling C. That is, the control unit K calculates the distance between the head of the person detected by the person detection unit K5 and the ceiling C.
In step S1095f, the control unit K calculates the position of the wind toward the ceiling C. This “winding position” will be described with reference to FIG.

Fig.12 (a) is a side view which shows the flow of the air in ceiling airflow air conditioning.
In addition, the solid line arrow shown to Fig.12 (a) has shown the flow of the air which goes to the ceiling C from the indoor unit 10. FIG. Moreover, the broken-line arrow shown to Fig.12 (a) has shown a mode that a ceiling airflow flows along the ceiling C, and the one part descend | falls.
When air is blown out from the indoor unit 10 with the vertical wind direction plate 24 (see FIG. 2) rotated upward, the air travels toward the ceiling C, and further travels along the ceiling C to the far side. . Moreover, a part of the air traveling along the ceiling C is lowered. In particular, during the cooling operation, the temperature of the cool air blown from the indoor unit 10 is lower than the room temperature, and thus the ceiling airflow tends to drop.

FIG. 12B is a plan view when the person M is in the center in the left-right direction when viewed from the indoor unit 10.
In step S1095f of FIG. 11, the control unit K causes the air blown from the indoor unit 10 to reach the person through the ceiling C in the front-rear direction (see FIG. 12A) and the left-right direction (FIG. 12). The wind blowing position P of (b) is calculated. This wind contact position P is a target position when the wind guided by the left and right wind direction plates 23 and the vertical wind direction plate 24 is applied to the ceiling C, and is located between the person M and the indoor unit 10 in the front-rear direction.

  Note that the method of calculating the wind-off position P is not limited to the method of substituting a value indicating the position of the person M into a predetermined expression. For example, the room may be divided into squares, and the air volume and direction associated with each square may be stored in advance in the storage unit K7 (see FIG. 7) as a data table. In this case, the wind blowing position P is set corresponding to the square including the person M.

FIG. 12C is a plan view when the person M is on the left side when viewed from the indoor unit 10. A side view corresponding to FIG. 12C is the same as FIG.
As shown in FIG. 12 (c), when a person M is on the left side when viewed from the indoor unit 10, an air blowing position P (from the indoor unit 10 to the ceiling C) so that the ceiling airflow reaches this person M. The left side) is calculated.

  Next, in step S1095g in FIG. 11, the control unit K sets the air volume and direction of the ceiling air-conditioning by the air flow control unit K6. That is, the control unit K sets the air volume and the wind direction so that the ceiling airflow is directed to the wind-carrying position P of the ceiling C calculated in step S1095f. In other words, the control unit K is configured so that at least a part of the air blown out from the indoor unit 10 travels through the ceiling C and further toward the person detected by the person detection unit K5. The angle of the plate 24 (see FIG. 2) is adjusted.

  In the ceiling airflow air conditioning, as described above, the vertical airflow direction plate 24 is directed to the ceiling C on the nearer side than the person detected by the person detecting unit K5 when viewed from the indoor unit 10. Accordingly, a part of the air blown out from the indoor unit 10 and transmitted through the ceiling C is lowered so as to diffuse around the person M. That is, since the airflow that gently flows along the ceiling C does not directly hit the person M but falls so as to softly wrap the person M, air conditioning with high comfort can be performed.

  When a plurality of (for example, six) up-and-down wind direction plates 24 are arranged in the left-right direction, at least one of them (for example, two in the center) faces the ceiling C, and the rest It may be directed horizontally or diagonally downward. Such an operation is also included in the matter of “directing the up-and-down wind direction plate 24 toward the ceiling C closer to the indoor unit 10 than the person detected by the person detection unit K5”.

FIG. 13A is a side view when the person M is located at a relatively distant position from the indoor unit 10.
FIG. 13B is a plan view of FIG.
Note that the broken line V shown in FIGS. 13A and 13B corresponds to the broken line V indicating the air blowing position P in FIGS. 12A and 12B. In the example shown in FIG. 13A, the distance between the indoor unit 10 and the person M is longer than in the example shown in FIG. In such a case, the control unit K sets the air blowing position P closer to the back of the room than in the case illustrated in FIG. 12A so that the ceiling airflow reaches the person M illustrated in FIG.

  Further, it is preferable that the control unit K increases the air volume in a state where the up-and-down air direction plate 24 faces the ceiling C as the distance between the person M detected by the person detection unit K5 and the indoor unit 10 is longer. This is because the ceiling airflow reaches the person M by increasing the air volume for the person M who is relatively far from the indoor unit 10.

FIG. 13C is a side view when the person M in the room is sitting on the chair E.
FIG.13 (d) is a top view of FIG.13 (c).
The position of the person M in the front-rear direction shown in FIG. 13C is substantially the same as that in FIG.
Thus, when the person M is sitting on the chair E, the distance between the head of the person M and the ceiling C is longer than when the person M is standing. Therefore, the control unit K sets the wind position P (see FIG. 13C) to the ceiling C so that the ceiling airflow reaches the sitting person M, and the wind when the person M stands at the same position. It is set closer to the indoor unit 10 than the addressed position (see the broken line V). The same applies to the case where the person M is sitting on the floor instead of the chair E.

  When the person M is detected by the person detection unit K5, the control unit K directs the up-and-down wind direction plate 24 toward the ceiling C rather than when a person is standing at the position of the person M sitting. It is preferable to increase the air volume in the wet state. This is because, for example, the ceiling air current reaches the person M sitting on the chair E as shown in FIGS.

FIG. 14A is an explanatory diagram when two people M1 and M2 are standing in the front-rear direction as viewed from the indoor unit 10. FIG. FIG. 14B is a plan view of FIG.
In such a case, the control unit K uses the person M1 on the near side as viewed from the indoor unit 10 as a reference (that is, part of the airflow transmitted through the ceiling C reaches the person M1 on the near side). The angle of the plate 23 and the vertical wind direction plate 24 is adjusted. That is, when there are a plurality of persons detected by the person detection unit K5 in the front-rear direction when viewed from the indoor unit 10, the control unit K uses the person M1 closest to the indoor unit 10 as a reference to the left and right wind direction plates 23. -Adjust the angle of the vertical wind direction plate 24. If ceiling airflow air conditioning is performed on the back of the person M2 on the back side, the cold air is directly applied to the head of the person M1 on the near side, and the comfort is impaired.

  As described above, by performing ceiling airflow air conditioning on the basis of the person M1 on the near side as viewed from the indoor unit 10, a part of the air transmitted through the ceiling C descends and reaches the person M1 on the near side, and It reaches the back person M2. Therefore, comfortable air conditioning can be performed for both people M1 and M2.

FIGS. 15A and 15B are explanatory views when two people M1 and M2 are sitting on the chairs E1 and E2 in the left-right direction when viewed from the indoor unit 10. FIG. FIG. 15A is a side view, and FIG. 15B is a plan view.
In such a case, the control unit K adjusts the angles of the left and right wind direction plates 23 and the upper and lower wind direction plates 24 so that the ceiling airflow reaches between the people M1 and M2 that are adjacent in the left and right direction. That is, when there are a plurality of people detected by the human detection unit K5 in the left-right direction when viewed from the indoor unit 10, the control unit K directs the vertical wind direction plate 24 toward the ceiling C and is adjacent in the left-right direction. The left and right wind direction plates 23 are turned between the persons M1 and M2.

  Note that the ceiling airflow is diffused to some extent in the process in which the airflow descends after passing through the ceiling C. That is, the ceiling airflow descends so as to wrap up the persons M1 and M2 sitting side by side in the left-right direction. Therefore, comfortable air conditioning can be performed for both people M1 and M2.

  By the way, when three people are lined up in the left-right direction, control to send the ceiling airflow between the right person and the central person, and send the ceiling airflow between the left person and the central person Control may be performed alternately. The same applies when four or more people are lined up in the left-right direction.

FIG. 16A is a side view when the ceiling fan F is installed on the ceiling C. FIG.
FIG. 16B is a plan view of FIG.
When the ceiling fan F installed on the ceiling C is detected by the object detection unit K4, the control unit K performs the following control. That is, the control unit K adjusts the angles of the left and right wind direction plates 23 and the upper and lower wind direction plates 24 so as to send air conditioned air toward the ceiling fan F. The air sent to the ceiling fan F is agitated by the rotation of the ceiling fan F and reaches the entire room. Thereby, the comfort of air conditioning can be improved.

<Effect>
According to the first embodiment, based on the position of the person in the room, the control unit K calculates the wind-applied position P to the ceiling C (S1095f in FIG. 11), and the air-conditioned air is applied to the position. Send to P (S1095g). As a result, a part of the ceiling airflow descends so as to wrap around the person. Therefore, it is possible to make the person feel a pleasant coolness like a shade by the airflow flowing gently from the ceiling C without directing the person directly.

Further, according to the first embodiment, unlike the above-described Patent Document 1, the ceiling airflow is appropriately sent to a person who is away from the side wall of the room (for example, near the center of the room in plan view). Can do.
Moreover, according to 1st Embodiment, unlike above-mentioned patent document 2, irrespective of arrangement | positioning of furniture etc., a part of ceiling airflow descend | falls so that a person may be wrapped. That is, since the cold air blown from the indoor unit 10 hardly hits the person directly during the execution of the ceiling air-conditioning, comfortable air conditioning can be performed.

Further, prior to the overall air conditioning (S1094 in FIG. 10), the control unit K performs air blowing air conditioning (S1092). Accordingly, for example, a cool cold air is directly applied to a person who enters the room from a hot outdoors, so that the comfort of the air conditioning for the person can be enhanced.
Moreover, the control part K performs ceiling airflow air conditioning (S1095), after performing whole air conditioning (S1093: Yes of FIG. 10). That is, the control unit K first performs ceiling air-conditioning for a person in the room after reducing the temperature unevenness of the entire room. This makes it possible to perform air conditioning that is highly comfortable for each person in the room.

  Furthermore, by executing alternate fluctuation air conditioning (S1097 in FIG. 10) that alternately performs air blowing air conditioning and ceiling airflow air conditioning, direct cooling by wind blowing air conditioning and coolness like a shade by ceiling airflow air conditioning, Can be made to feel alternately in the room.

<< Second Embodiment >>
The second embodiment is different from the first embodiment in that the air-conditioning / ceiling air-conditioning is switched from one to the other based on the temperature of the person, but the other (configuration of the air conditioner 100 and the like: FIG. 1 to 9) are the same as in the first embodiment. Therefore, a different part from 1st Embodiment is demonstrated and description is abbreviate | omitted about the overlapping part.

FIG. 17 is a flowchart illustrating processing executed by the control unit K of the air conditioner according to the second embodiment.
It is assumed that the cooling operation is performed at the time of “START” in FIG.
In addition, after steps S101 to S108 (see FIG. 8) described in the first embodiment have already been executed, a series of processes shown in FIG. 17 are performed as “determining a blowing method” in step S109.

  In step S109u in FIG. 17, the control unit K determines whether or not a person whose temperature is equal to or higher than the predetermined threshold T1 exists in the room based on the detection result of the temperature detection unit 13. The “temperature” (that is, the surface temperature) of a person is the temperature of clothes worn by the person and also the temperature of the skin such as the head, hands, and feet. Therefore, for example, the average temperature of the person's area included in the thermal image may be the “temperature” of the person, and the temperature of the person's skin may be the “temperature” of the person.

In step S109u, when a person whose temperature is equal to or higher than the predetermined threshold T1 exists in the room (S109u: Yes), the process of the control unit K proceeds to step S109v.
In step S109v, the control unit K performs air conditioning by blowing air. As a result, cold air is directly applied to a person having a relatively high temperature, so that air conditioning with high comfort for the person can be performed.

  In addition, when a child is detected in step S109v, it is preferable to set the air-conditioning time longer than that for an adult. This is because children have more fever than adults. The above-mentioned distinction between adults and children is made based on, for example, the ratio between the height and the length of the face in the vertical direction.

  On the other hand, in step S109u, when a person whose temperature is equal to or higher than the predetermined threshold T1 does not exist in the room (S109u: No), the process of the control unit K proceeds to step S109w. In step S109w, the control unit K executes ceiling airflow air conditioning. In addition, about the processing content of ceiling airflow air-conditioning, since it is the same as that of 1st Embodiment (refer FIGS. 11-16), description is abbreviate | omitted.

Incidentally, in the case where there is no person whose temperature is equal to or higher than the predetermined threshold T1 (S109u: No), when there are a plurality of persons in the room, the control unit gives priority to the person having a high temperature and the ceiling airflow air conditioning (S109w). ) Is preferable. Thereby, comfortable air conditioning can be performed for each person in the room.
After performing the process of step S109v or S109w, the process of the control unit K returns to “START” shown in FIG. 8 (“RETURN” in FIG. 8).

<Effect>
According to the second embodiment, when a person whose temperature is equal to or higher than the predetermined threshold value T1 is present in the room (S109u: Yes), the control unit K performs air conditioning by blowing air (S109v), so that the comfort of cold air is obtained. It can make people feel.
In addition, when the person whose temperature is equal to or higher than the predetermined threshold T1 does not exist in the room (S109u: No), the control unit K performs ceiling air-flow air conditioning (109w) to make the person feel a pleasant coolness like a tree shade. be able to.

«Third embodiment»
The third embodiment is different from the first embodiment in that a person in the room is detected by a thermography 27 (temperature detection unit: see FIG. 18) instead of the imaging unit 12 (see FIG. 1). . Further, the third embodiment is different from the first embodiment in that control such as ceiling air-conditioning is simplified. The overall configuration of the air conditioner 100A (see FIG. 18) is the same as that in the first embodiment (see FIG. 4). Therefore, a different part from 1st Embodiment is demonstrated and description is abbreviate | omitted about the overlapping part.

FIG. 18 is a front view of an indoor unit 10A included in the air conditioner 100A according to the third embodiment.
As shown in FIG. 18, the indoor unit 10 </ b> A of the air conditioner 100 </ b> A includes a thermography 27. In the example shown in FIG. 18, the thermography 27 is installed near the center in the left-right direction of the indoor unit 10A.

  The thermography 27 includes, for example, a thermal infrared detection element (not shown) that converts a temperature change caused by infrared radiation into an electrical signal. A thermopile, a bolometer, a pyroelectric element, an SOI (Silicon On Insulator), or the like can be used as such a thermal infrared detection element. Based on the detection result of the thermography 27, the person detection unit K5 (see FIG. 7) detects a person in the room.

  Instead of a thermal infrared detection element (not shown), a quantum infrared detection element using a photoelectric effect may be used. As such a quantum infrared detection element, a photodiode, a phototransistor, a photo IC (Integrated Circuit), or the like can be used.

FIG. 19 is a flowchart illustrating processing executed by the control unit K of the air conditioner 100A. Note that it is assumed that the cooling operation is performed at the time of “START” in FIG.
In step S201, the control unit K determines whether or not a person in the room is detected by the person detection unit K5 (see FIG. 7) based on the thermal image data input from the thermography 27. When a person in the room is detected (S201: Yes), the process of the control unit K proceeds to step S202.

  In step S202, the control unit K performs ceiling airflow air conditioning. In this ceiling air-conditioning, the control unit K adjusts the angles of the up / down wind direction plate 24 and the left / right wind direction plate 23 based on the position of the person, as in the first embodiment (see FIG. 11).

  Instead of the above-described processing, the control unit K may maintain the angle of the up-and-down air direction plate 24 at a predetermined value (fixed value) so that air conditioned is directed toward the ceiling C. In this case, the control unit K may fix the direction of the left and right wind direction plates 23 or may rotate the left and right wind direction plates 23 appropriately.

On the other hand, when no room person is detected in step S201 (S201: No), the process of the control unit K proceeds to step S203.
In step S203, the control unit K performs overall air conditioning. Thereby, the temperature unevenness of the entire room can be reduced.
After performing the process of step S202 or S203, the process of the control unit K returns to “START” (“RETURN”).

<Effect>
According to the third embodiment, when a person is detected based on the thermal image data from the thermography 27 (S201: Yes), the control unit K performs ceiling airflow air conditioning (S202). Thereby, the process of the control part K can be simplified rather than 1st Embodiment.

≪Modification≫
As mentioned above, although air conditioner 100,100A etc. which concern on this invention were demonstrated in each embodiment, this invention is not limited to these description, A various change can be made.
For example, in the first embodiment, the indoor unit 10 includes the imaging unit 12 (see FIG. 1) having a relatively wide viewing angle so that both the ridge line between the ceiling and the side wall and the ridge line between the floor and the side wall are within the field of view. Although the structure provided in is demonstrated, it is not restricted to this. That is, an imaging unit having a relatively narrow viewing angle may be used, and the control unit K may rotate (tilt) the imaging unit at least in the vertical direction.
In addition, when using an imaging unit that has a relatively narrow viewing angle and is not rotatable in the vertical direction, as described below, a mirror 28 (see FIG. 20) is used in the vicinity of the ridgeline between the ceiling and the side wall. You may make it image.

FIG. 20 is a longitudinal sectional view of an air conditioner 100B according to a modification.
As shown in FIG. 20, the indoor unit 10B of the air conditioner 100B includes a mirror 28 and the like. And the ridgeline of a ceiling and a side wall is imaged with the light reflected by the mirror 28, The height of a ceiling and the installation height of the indoor unit 10B are calculated based on the imaging result. The mirror 28 has a mirror surface (upper surface) arranged in parallel to the horizontal plane, and is moved in the front-rear direction by a mirror moving motor (not shown). Then, when imaging the ceiling of the room and the ridgeline of the side wall, the mirror 28 is moved forward by the mirror moving motor so that the light reflected by the mirror 28 enters the imaging unit 12. After the height of the ceiling and the installation height of the indoor unit 10B are calculated, the mirror 28 is moved backward by the mirror moving motor. Even with such a configuration, the height of the ceiling and the installation height of the indoor unit 10B can be calculated.

Further, for example, when using the imaging unit 12 that has a relatively narrow viewing angle and is not rotatable in the vertical direction, an infrared reflection sensor for distance measurement is provided on the upper surface of the housing base 19 (see FIG. 2) included in the indoor unit 10. (Not shown) may be installed. The distance between the indoor unit 10 and the ceiling is calculated based on the detection result of the infrared reflection sensor, and the height of the ceiling is calculated based on the distance and the installation height of the indoor unit 10 described above. Instead of the infrared reflection sensor, an ultrasonic sensor (not shown) for distance measurement may be installed on the upper surface of the housing base 19.
Further, the user inputs the installation height or the like of the indoor unit 10 to the remote controller 40 (see FIG. 1), and further transmits the installation height or the like of the indoor unit 10 from the remote control 40 to the remote control receiving unit 11 (see FIG. 1). You may make it do.

  Moreover, in 1st Embodiment, although the air conditioner 100 demonstrated the structure provided with the visible light cut filter 12b (refer FIG. 6), it is not restricted to this. That is, the visible light cut filter 12b may be omitted, and each process may be performed in the “first imaging mode” without performing the “second imaging mode”.

  Moreover, in 1st Embodiment, although the person's stay time detected by the person detection part K5 was the predetermined time t1 or less (S1091: Yes of FIG. 10), the process which performs air blowing air conditioning (S1092) was demonstrated. The processes in steps S1091 and S1092 may be omitted. That is, “ceiling air conditioning” may be performed after “overall air conditioning” is performed without performing air conditioning.

  Furthermore, in addition to the above-described steps S1091 and S1092, the processing of steps S1093 to S1096 in FIG. 10 may be omitted and the processing of step S1097 may be continued. That is, “alternate fluctuation air conditioning” in which air-conditioning air conditioning and ceiling airflow air conditioning are alternately performed may be continued.

In the first embodiment, when the distance between the person detected by the person detection unit K5 and the indoor unit 10 is outside the predetermined range (S1095c: No in FIG. 11), the airflow / Although the process (S1095d) which sets a wind direction suitably was demonstrated, it does not restrict to this. That is, when the distance between the person detected by the person detection unit K5 and the indoor unit 10 is less than the “first threshold value”, the control unit K is located on the ceiling in front of the person as viewed from the indoor unit 10. The up / down wind direction plate 24 may not be directed. As a result, the ceiling air-conditioning for the person in the immediate vicinity of the indoor unit 10 is not performed. For example, the comfort of the air conditioning can be improved by performing the entire air conditioning.
When the distance between the person detected by the person detection unit K5 and the indoor unit 10 is longer than the “second threshold value”, the control unit K is located on the ceiling in front of the person as viewed from the indoor unit 10. The up / down wind direction plate 24 may not be directed. The “second threshold value” is set in advance as a value larger than the “first threshold value” described above. Thereby, ceiling air-conditioning for people who are too far from the indoor unit 10 is not performed, and for example, the comfort of air conditioning can be improved by performing overall air conditioning.

  Moreover, although 1st Embodiment demonstrated the structure in which the indoor unit 10 was provided with the near-infrared light source 14 (refer FIG. 1) and the foot monitor 15 (refer FIG. 1), you may abbreviate | omit one or both of these.

Moreover, you may combine suitably each item described as each embodiment and a modification. For example, in the configuration in which the control of the first embodiment is applied to the configuration of the third embodiment and a person is detected using the thermography 27 (see FIG. 18), a series of processes shown in FIGS. 8, 10, and 11 May be executed by the control unit K.
Further, in the configuration in which the control of the third embodiment is applied to the configuration of the first embodiment and a person is detected using the imaging unit 12 (see FIG. 1), the control unit K executes a series of processes shown in FIG. You may make it do.

  Moreover, although each embodiment demonstrated the case where ceiling air-conditioning etc. were performed during air_conditionaing | cooling operation, it is not restricted to this. In other words, ceiling air conditioning or the like may be performed during the heating operation. As a result, the warm ceiling air flow descends so as to envelop the person, so that the person can feel a comfortable warmth like a sun. In addition, regarding the second embodiment, when there is a person whose temperature is equal to or lower than a predetermined threshold during the heating operation, the control unit K performs air-conditioning (foot airflow) by blowing and there is a person whose temperature is equal to or lower than the predetermined threshold. If not, ceiling air conditioning may be performed.

  Moreover, although each embodiment demonstrated the air conditioner 100 etc. which are provided with the wall-hanging type indoor unit 10 (refer FIG. 1, FIG. 2), it is not restricted to this. That is, each embodiment can also be applied to an air conditioner including other types of indoor units such as a ceiling-type suspension or a floor-standing configuration.

  Moreover, although each embodiment demonstrated the structure in which the indoor unit 10 (refer FIG. 1) and the outdoor unit 30 (refer FIG. 1) were provided one each, it is not restricted to this. That is, a plurality of indoor units connected in parallel may be provided, or a plurality of outdoor units connected in parallel may be provided.

Each embodiment is described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the described configurations. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.
In addition, the above-described mechanisms and configurations are those that are considered necessary for the description, and do not necessarily indicate all the mechanisms and configurations on the product.

100, 100A, 100B Air conditioner 10, 10A, 10B Indoor unit 11 Remote control receiver 12 Imaging unit 13 Temperature detector 16 Indoor heat exchanger 23 Left and right wind direction plates (wind direction plates)
24 Vertical wind direction plate (wind direction plate)
25 Indoor control circuit (control unit)
27 Infrared thermography (temperature detector)
30 Outdoor unit 31 Compressor 32 Outdoor heat exchanger 35 Expansion valve 36 Four-way valve 37 Outdoor control circuit (control unit)
C ceiling F ceiling fan K control unit K1 imaging control unit K2 floor plan detection unit K3 ceiling detection unit K4 object detection unit K5 human detection unit K6 airflow control unit K7 storage unit Q refrigerant circuit R sensor unit

Claims (14)

A human detection unit for detecting a person in the room where the indoor unit is installed;
An air conditioner, comprising: a control unit that directs a wind direction plate toward a ceiling on the nearer side than a person detected by the human detection unit when viewed from the indoor unit. The control unit adjusts the angle of the wind direction plate so that at least a part of the air blown from the indoor unit travels through the ceiling and further toward the person detected by the person detection unit. The air conditioner according to claim 1, wherein 2. The control unit according to claim 1, wherein as the distance between the person detected by the person detection unit and the indoor unit is longer, the air volume in a state where the wind direction plate is directed toward the ceiling is increased. The air conditioner described. When the person detected by the person detecting unit is detected by the control unit, the air volume in a state where the wind direction plate is directed toward the ceiling, compared to a case where a person stands at the position of the sitting person. The air conditioner according to claim 1, wherein the air conditioner is increased. When there are a plurality of persons detected by the human detection unit in the front-rear direction when viewed from the indoor unit, the control unit adjusts the angle of the wind direction plate with reference to the person closest to the indoor unit. The air conditioner according to claim 1, wherein: When there are a plurality of humans detected by the human detection unit in the left-right direction when viewed from the indoor unit, the control unit directs the wind direction plate to the ceiling and is a person adjacent in the left-right direction The air conditioner according to claim 1, wherein the wind direction plate is directed between the air conditioners. An object detection unit for detecting the indoor object;
When the ceiling fan installed on the ceiling is detected by the object detection unit, the control unit adjusts the angle of the wind direction plate so as to send air-conditioned air toward the ceiling fan. The air conditioner according to claim 1. The said control part performs ceiling airflow air conditioning which directs the said wind direction board to the said ceiling, after performing the whole air conditioning to which the air conditioned air spreads over the said whole room | chamber interior. Air conditioner. The air conditioning according to claim 8, wherein the control unit performs air-conditioning air conditioning so that air conditioned by a person detected by the human detection unit is applied prior to the overall air conditioning. Machine. The control unit alternately performs air-conditioning air conditioning for allowing air conditioned air to hit the person detected by the person detection unit and ceiling airflow air-conditioning for directing the wind direction plate to the ceiling. The air conditioner according to claim 1. A temperature detection unit for detecting the temperature of a person in the room;
The control unit is during cooling operation,
When a person whose temperature is equal to or higher than a predetermined threshold is present in the room, air conditioning is performed so that the person is exposed to air conditioned,
2. The air conditioner according to claim 1, wherein when a person whose temperature is equal to or higher than the predetermined threshold does not exist in the room, ceiling air-conditioning is performed by directing the wind direction plate toward the ceiling. In the case where there is no person whose temperature is equal to or higher than the predetermined threshold in the room, when there are a plurality of persons in the room, the control unit performs the ceiling air-conditioning with priority on the person whose temperature is high. The air conditioner according to claim 11, wherein the air conditioner is characterized. A human detection unit for detecting a person in the room where the indoor unit is installed;
When the distance between the person detected by the person detection unit and the indoor unit is less than a first threshold value, the control is performed so that the wind direction plate is not directed toward the ceiling in front of the person when viewed from the indoor unit. And an air conditioner. A human detection unit for detecting a person in the room where the indoor unit is installed;
When the distance between the person detected by the person detection unit and the indoor unit is longer than a second threshold value, control is performed so that the wind direction plate is not directed toward the ceiling on the near side of the person as viewed from the indoor unit. And an air conditioner.

Images