JP2000213791A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent wasteful operation in an absent condition from being continued, by providing an antipersonnel sensor which detects the action of a human body and an optical sensor which detects ambient illuminance, and by controlling operating modes on the basis of the outputs of these sensors. SOLUTION: An antipersonnel sensor 31 is installed at the central part on the substrate of a sensor in a casing. An LED indicators 32 to 35 are installed at its both sides, and an optical sensor 36 which detects the illuminance (brightness and darkness) at a predetermined angle of the front is mounted at the left end. The antipersonnel sensor 31 detects presence and absence by human movement or the action of a human body, and it comprises a Fresnel lens F and a pyroelectric element (infrared rays or the like). The Fresnel lens F is disposed obliquely downward and forward to the vertical direction of an utilization side unit A to detect human beings efficiently. An air conditioner is put into a normal operating mode by the outputs of presence by the antipersonnel sensor 31 and the bright condition by the optical sensor. It is put into such a mode to be stopped by the outputs of absence and the bright condition, so that wasteful operation in an absent condition is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner whose operation is controlled using a human sensor for detecting human body movement.

[0002]

2. Description of the Related Art Conventionally, in an air conditioner of this type, an infrared sensor (hereinafter, referred to as a human sensor) for detecting a human body movement is attached to a main body as shown in Japanese Utility Model Publication No. 6-38271. There has been developed a configuration in which driving / stopping can be controlled by detecting the movement of a human hand or the like by the motion sensor.

[0003] The use of such a human sensor makes it possible to automatically control the operation mode of the air conditioner according to the presence or absence of a person in the room or the position of the person.
A more comfortable and efficient air conditioning operation for the user can be realized.

[0004]

However, if control is performed by using only the human sensor and using the normal operation mode in the room and stopping when the user is absent, the human will hardly move when going to bed. In many cases, driving is stopped, and comfortable driving control cannot be realized at bedtime.

On the other hand, if a light sensor for detecting the illuminance of the surroundings is used and the control is performed in a normal operation mode when the light is bright and a stop is performed when the light is dark, the control is automatically performed even when the user goes out during the day and becomes absent. Operation is continued, resulting in an extremely uneconomical situation.

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional technical problem, and provides an air conditioner capable of realizing efficient and comfortable automatic driving control using a human sensor and an optical sensor. Is what you do.

[0007]

An air conditioner according to the present invention comprises:
A human sensor that detects human body movement is provided, and driving is controlled based on the output of the human sensor.An optical sensor that detects ambient illuminance is provided. The operation mode is controlled based on the operation mode.

According to the present invention, there is provided an air conditioner having a human sensor for detecting a human body motion, the operation of which is controlled based on the output of the human sensor, and an optical sensor for detecting ambient illuminance. Since the driving mode is controlled based on the outputs of the human sensor and the optical sensor, it is determined that the room is occupied based on the output of the human sensor as in the invention of claim 2, and based on the output of the optical sensor. When it is determined that the vehicle is bright, the normal driving mode is set. When the vehicle is determined to be bright and the absence of the vehicle is determined based on the output of the human sensor, the mode is set to a stop or energy saving mode. This makes it possible to prevent useless operation from continuing in the absence state.

[0009] In addition, even when it is determined that there is no presence in the stop or energy saving mode as in the third aspect of the present invention, and it is determined that the image has become dark based on the output of the optical sensor, the mode is maintained. It is possible to prevent the inconvenience of suddenly starting driving for bedtime when it becomes dark despite being absent.

Further, as in the fourth aspect of the present invention, it is determined that the room is occupied in the normal operation mode. If it is determined based on the output of the optical sensor that the room has become dark, the operation mode is suitable for sleeping. As a result, when the user goes to sleep with the lights turned off at night, the operation mode is automatically switched to the operation mode suitable for going to bed, and extremely comfortable automatic driving can be realized.

Further, it is determined that the driving mode suitable for bedtime is dark as in the invention of claim 5, and the driving mode is maintained even when it is determined that the user is absent based on the output of the human sensor. Thereby, even if the user goes to bed and hardly moves, and it is determined that the motion sensor is absent,
The driving mode suitable for bedtime is automatically continued, and the comfort is further improved.

[0012] Then, it is determined that the vehicle is not present in the operation mode suitable for bedtime as in the invention of claim 6, and the operation mode is maintained even when it is determined based on the output of the optical sensor that the image becomes bright. As a result, the user is in the morning while sleeping, and the driving is not stopped even if the room becomes bright, and the driving mode suitable for sleeping is continued.
Further, it is possible to realize more comfortable automatic driving control.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an air conditioner A to which the present invention is applied.
FIG. 2 is a front view of the user-side unit A of FIG. In each of the drawings, reference numeral 20 denotes a main body frame which constitutes a main body of a use-side unit A attached to an upper part of a wall surface in a room. The main body frame 20 includes a blower 13, a use-side heat exchanger 8, a drain pan 15, and a vertical flap. 17 and the horizontal flap 18 are accommodated.

A cabinet 21 is mounted on the front side of the main body frame 20, and a panel 23 is mounted on the front surface of the cabinet 21. Book cabinet 2
A suction port 24 is formed on the upper surface of 1, a suction port 22 is also formed on a front panel 23, and a blowout port 25 is formed on a lower oblique front side of the cabinet 21. This outlet 2
5 is connected to the air outlet passage 26 inside the main body frame 20,
The outlet passage 26 is used to supply air from the blower 13 to the outlet 2.
Guide to 5.

Further, a position at a corner formed by the front surface and the lower surface of the use side unit A, that is, the air outlet 25 and the panel 23
A storage section 26 is formed at the center of the cabinet 21 in the width direction.
The display unit 27 is mounted in the inside 6 by engagement.

As shown in FIGS. 4 to 6, the display unit 27 has a horizontally long case 28, a sensor board 29 provided in the case 28, and a human sense mounted on a central portion of the sensor board 29. A sensor 31, a total of four indicators 32 to 35 composed of LEDs mounted on left and right sensor boards 29, and an illuminance (light and dark) at a predetermined angle in front mounted on a left end of the sensor board 29 facing the sensor board 29. ), A receiver 37 attached to the right end as viewed from the front, and a cover 38 covering the front surface of the case 28.

The human sensor 31 detects the presence or absence of a room by a human body movement such as human movement or hand movement. It comprises a pyroelectric element (infrared or thermal sensor) 42 as a sensor disposed at the inner rear part. The storage section 26 is opened obliquely downward, and the display unit 27 is also inserted and engaged obliquely from the lower front. As a result, the Fresnel lens F of the human sensor 31 is arranged obliquely downward and forward with respect to the vertical direction of the use side unit A.

With this configuration, the center axis L1 of the Fresnel lens F also becomes forward and downward from horizontal (indicated by L2 in FIG. 7), and the detection range (P1 + P
The upper limit of 2) (shown by L3 in FIGS. 8 and 10) is lower than the horizontal L2. Then, the lower limit of the detection range (FIG. 8, FIG. 10)
L4) is substantially vertical.

As a result, the detection range of the human sensor 31 covers substantially the entire area of the room in the horizontal direction as shown by the broken line in FIG. 11, and the detection range of the user side unit A in the vertical direction as shown by the broken line in FIG. The area lower than the height of the use side unit A from immediately below is covered. Therefore, it is possible to sufficiently cover substantially the entire area below the human sensor 31 in which a person is present, and it is possible to perform operation control based on efficient human body motion detection (detection of presence and absence of a room). Become.

The front end of the Fresnel lens F is flush with the outer surface of the cabinet 21 as shown in FIG. Therefore, since the Fresnel lens F does not protrude from the cabinet 21, breakage of the Fresnel lens F hardly occurs.

Further, the display units 32 to 35 and the human sensor 3
1. Since the optical sensor 36 and the like are integrally arranged on the sensor substrate 29, the cost can be reduced by reducing the number of substrates, and the motion sensors 31 and the light When displaying the control by the sensor 29 as will be described later, the indicators 32 to 35 are present near the Fresnel lens F, so that the user can easily understand the operation status.

Furthermore, the optical sensor 36 and the human sensor 31
Are arranged integrally on the sensor substrate 29, so that the light sensor
6 can be realized, and the comfort can be further improved.

Next, FIG. 3 shows a refrigerant circuit of the air conditioner AC. The air conditioner AC according to the embodiment includes the wall-mounted use side unit A installed indoors and the heat source side unit B installed outdoors, and both are connected by a refrigerant pipe 1.

In FIG. 3, reference numeral 2 denotes a so-called inverter compressor (variable capacity type compressor, hereinafter referred to as a compressor) whose frequency is controlled by an inverter. As means for varying the capacity of the compressor, there are other methods such as voltage control when a DC motor is used or discharge amount control when a capacity variable valve is used. 3 is a four-way switching valve for switching the flow of the refrigerant during the cooling / heating operation, 4 is a heat source side heat exchanger (outdoor heat exchanger), 5 is a capillary tube, 7 is an electromagnetic switching valve as an expansion valve, 8 is The use side heat exchanger (indoor heat exchanger), 9 is an electromagnetic on-off valve as an expansion valve, 10 is an accumulator, and 11 is a check valve.

The refrigerant discharged from the compressor 2 is subjected to a cooling operation (indicated by a solid arrow) and a heating operation (indicated by an alternate long and short dash line) according to the switching position of the four-way switching valve 3 and the opening and closing of the solenoid valves 7 and 9. ), Dry operation (indicated by dashed arrows)
The flow direction is determined according to the three modes.

That is, during the cooling operation, the high-temperature and high-pressure refrigerant discharged from the compressor 2 is supplied to the four-way switching valve 3, the heat source side heat exchanger 4, the check valve 11, as indicated by the solid arrows in FIG.
The electromagnetic on-off valve 7, the pipe 8A inside the use side heat exchanger 8, the electromagnetic on-off valve 9, the pipe 8B outside the use side heat exchanger 8, the four-way switching valve 3, and the accumulator 10 circulate in this order, and the heat on the heat source side The exchanger 4 functions as a condenser, the electromagnetic on-off valve 7 functions as a pressure reducing device, and the use side heat exchanger 8 functions as an evaporator. At this time, the solenoid on-off valve 9 is open (fully open).

Next, during the heating operation, the high-temperature and high-pressure refrigerant discharged from the compressor 2 is supplied to the outside of the four-way switching valve 3 and the use-side heat exchanger 8 as indicated by a dashed-dotted arrow in FIG. The pipe 8B, the electromagnetic on / off valve 9, the pipe 8A inside the use side heat exchanger 8, the electromagnetic on / off valve 7, the capillary tube 5, the heat source side heat exchanger 4, the four-way switching valve 3, and the accumulator 10 are circulated in this order and used. The side heat exchanger 8 functions as a condenser, and the heat source side heat exchanger 4 functions as an evaporator. At this time, the solenoid valves 7 and 9 are open.

Next, during the dry operation, the high-temperature and high-pressure refrigerant discharged from the compressor 2 is supplied to the four-way switching valve 3, the heat source side heat exchanger 4, and the check valve, as indicated by broken arrows in FIG. 1
1. Electromagnetic on-off valve 7, piping 8 inside use side heat exchanger 8
A, solenoid on-off valve 9, piping 8 outside use side heat exchanger 8
B, the four-way switching valve 3 and the accumulator 10 are circulated in this order, the heat source side heat exchanger 4 is a condenser, the electromagnetic on-off valve 7 is open (fully open), and the pipe 8A inside the use side heat exchanger 8 is a condenser. The solenoid on-off valve 9 functions as a pressure reducing device, and the pipe 8B outside the use side heat exchanger 8 functions as an evaporator. by this,
In the use-side heat exchanger 8, a dehumidifying effect is achieved by the heating action by the pipe 8A and the cooling action by the pipe 8B.

Next, FIG. 12 and FIG. 13 show an electric circuit of the use side unit A of the air conditioner AC. In each figure, reference numeral 43 denotes a controller (control board) composed of a general-purpose microcomputer. The controller 43 includes a room temperature sensor 44 for detecting a room temperature (suction air temperature), and a controller for the use side heat exchanger 8. A heat exchange temperature sensor 46 for detecting a temperature is connected.

The controller 43 is connected to an up / down / left / right flap motor 47 for driving the horizontal flap 18 and the vertical flap 17 to adjust the wind direction, and a fan motor 13M for driving the blower 13 is connected. Further, the sensor substrate 29 is also connected. Further, the controller 43 has an operation changeover switch (“DE
"MO", "test run", "run", "stop") 48, and automatic switch 49 ("hide-me", "stop") 49 are attached, and each is provided in use side unit A. I have.

The controller 43 is electrically connected to a control board (controller) (not shown) of the heat source side unit B from the terminal plate 50 via a cable.

Here, the structure of the sensor substrate 29 is shown in FIG.
Outlined in Section 3. The receiver 37 which receives infrared rays from a remote controller R described later on the sensor board 29,
The indicators 32 to 35, the optical sensor 36, and the pyroelectric element 42 of the human sensor 31 are attached to form a predetermined circuit.

The display 32 has green and red LEs.
D, which functions as a lamp for displaying the cooling operation by emitting green light and the heating operation by emitting red light. The display 33 functions as a lamp for displaying the timer operation. Further, the display 34 is also composed of green and red LEDs, and functions as a normal human lamp with green light emission and as a human standby lamp with red light emission. Further, when both LEDs are turned on, the LED emits amber light, and the lamp becomes a human sleep sound lamp (three-color light emission). Furthermore, the display 35 functions as a lamp for displaying the silent operation.

Next, the structure of the remote controller R will be described with reference to FIGS.
The operation of C will be described. The remote controller R is made of a hard synthetic resin so as to be gripped by a hand, and a liquid crystal display unit 52 as a display unit is provided at an upper front part of the main body 51. Below the liquid crystal display 52, a one-hour timer switch 53 as a main operation switch and temperature setting switches 54 and 56 are juxtaposed.

When the one-hour timer switch 53 is operated, "1H" is displayed on the liquid crystal display 52, and the controller 43 stops the operation of the air conditioner AC one hour after the time. (If operated during stoppage, the operation starts automatically and stops after 1 hour). The set temperature is displayed on the liquid crystal display section 52, and the set temperature is indicated by the temperature setting switches 54 and 56.
Can be set up / down by the operation.

The switches 53, 54, 56
On the upper side, a horizontally long run / stop switch 57 also serving as a main operation switch and an automatic switch 58 are provided. Based on the operation of the start / stop switch 57, the controller 43 starts / stops the air conditioner AC. Incidentally, reference numeral 59 denotes an infrared light emitting portion provided on the upper surface of the main body 51.

The controller 43 receives the infrared signal from the remote controller R by the receiver 37 of the sensor board 29, and sets the data such as the set temperature based on the received signal or the data provided in the use side unit A itself. The operation of the fan motor 13M and the flap motor 47 of the blower 13 is controlled based on the setting data by each switch and the output of each sensor 44, 46, and a control signal is transmitted from the terminal plate 50 to the heat source side unit B for compression. By controlling the machine 2 and the four-way switching valve 3, the room temperature is adjusted to the set temperature.

The liquid crystal display 52 and the switches 53,
54, 56, 57 and 58 are exposed at the front of the main body 51 of the remote controller R, but the front of the main body 51 below them is lowered by one step, and the detailed setting section 61
The detailed setting unit 61 includes a cover 60
It can be opened and closed freely.

The detailed setting unit 61 includes an air conditioner AC
There are provided various switches for setting the operating state of the device in detail. In each figure, reference numeral 62 denotes an operation changeover switch.
The operation changeover switch 62 switches the air conditioner AC between the cooling operation, the heating operation, and the dry operation.
The display of each operation state is performed by the liquid crystal display unit 52.

Reference numeral 63 designates the flap motor 47 as an O
When the flap motor 47 is turned on by the wind direction switch 63, the vertical flap 17 and the horizontal flap 18 perform an operation of automatically distributing the discharged air vertically and horizontally. This display is also displayed on the liquid crystal display unit 52.

Reference numeral 64 denotes an air volume switch for setting the speed of the fan motor 13M of the air blower 13. The air volume switch 64 allows the air volume of the air blower 13 to be "automatic".
You can switch between "strong", "medium" and "weak". The amount of air is also displayed on the liquid crystal display unit 52.

Reference numeral 65 denotes a silent switch for instructing a silent operation, and 66 denotes a group of switches for setting a timer reservation operation. Reference numeral 67 denotes a sleep sleep switch. When sleep sleep operation is selected by the sleep sleep switch 67, sleep sleep operation for changing the set temperature by, for example, 1 ° C. higher during the cooling operation and 3 ° C. lower during the heating operation after 1 hour, for example, is executed. Is done. As a result, the driving suitable for going to bed is performed, and the driving noise is suppressed.

Next, referring to FIGS. 16 to 19, a description will be given of the automatic operation based on the human sensor 31 and the optical sensor 36, which is executed when the automatic switch 58 is operated. It is assumed that the operation changeover switch 48 provided on the use side unit A is in the "operation" position. Further, since the automatic switch 58 is provided in the remote controller R, the usability of the user is extremely good.

The controller 43 has an automatic switch 58.
In the case of the automatic driving, the presence or absence of the room is determined based on the detection operation of the human sensor 31 and the optical sensor 36
Is determined based on the detection operation of "Normal", "Stop", "Hikaeme",
Automatically switches to the four driving modes of "sleeping good".

The controller 43 does not execute the determination operation for, for example, one minute after the power is turned on to stabilize the circuit.
Further, in this determination, when the human sensor 31 detects the human body operation from the absence state, the controller 43 immediately determines that the human body is occupied, but the human sensor 31 does not detect the human body operation from the occupied state. In this case, for example, a delay time of 15 minutes is provided.

That is, only when the human sensor 31 does not detect a human body motion for 15 minutes continuously from the occupancy state, the controller 43 determines that the user is not present. This prevents erroneous determination that a person is absent in a situation where a person does not move very much.

The controller 43 also provides a delay time of, for example, two minutes when the optical sensor 36 detects that the light state has changed from a bright state to a dark state and from a dark state to a bright state. That is, the controller 43 determines that the image is bright or dark only when the image is continuously bright or dark for two minutes.
This prevents an erroneous determination when the room temporarily becomes bright or dark.

At the start of the automatic operation, the controller 43 first enters the normal mode. In the normal mode, the controller 43 executes the cooling / heating / dry operation set by the operation changeover switch 62 at the set temperature set by the temperature setting switches 54 and 56 as described above. In addition, the display 34 emits green light, and the normal human feeling lamp is turned on. At this time, since the display 34 is provided on the sensor substrate 29 integrally with the motion sensor 31, the operation state is very easy to understand.

In this state, for example, when a person goes out while the room is bright and it is determined that the controller 43 is absent, the mode shifts to a stop mode as shown by a horizontal arrow in FIG. In this case, whether to enter the stop mode or the hidden mode is set by the automatic switch 49 (two positions of “Hikame” and “Stop”) 49 provided in the use side unit A.

When the stop mode is set, the compressor 2 and the blower 13 are stopped after a lapse of 3 minutes, the display 34 emits red light, and the human waiting lamp is turned on. When the mode is set to the shrink mode, the set temperature becomes, for example, 13 ° C. during the heating operation, and the set temperature becomes, for example, 30 ° C. during the cooling / dry operation, and the energy saving operation is performed. Then, the display 34 emits red light in the same manner.

Here, in the case of an air conditioner whose operation is controlled only by an optical sensor, normal operation is performed if the room is bright even if the user goes out in the daytime. Even if it is bright, when no user is present, the compressor 2 and the blower 13 are automatically stopped or energy saving operation is performed, so that power consumption is prevented.

Further, whether the operation mode in the absence state is a mode in which the compressor 2 and the blower 13 are stopped or a hiccame mode in which energy saving operation is performed is determined by an automatic switch 49 provided in the use side unit A. Select the optimal operating state for the user, for example, stop mode when going out for a relatively long period of time, and hibernate mode when going out for a short time to suppress temperature fluctuations. become able to.

On the other hand, in the normal mode, the lighting of the room is turned off at night and the user goes to bed, and when the room becomes dark and the controller 43 determines that the room is dark, the sleep mode is set as shown by the downward arrow in FIG. Transition. In this sleep mode, the same operation as the sleep driving is performed. In addition, the display 34 emits the amber light, and the human sleep sound lamp is turned on.

Here, in the case of an air conditioner whose operation is controlled only by a human sensor, there is a danger that when the user goes to bed at night, the operation is judged to be absent and the operation is stopped. If the user goes to sleep and the room darkens, the sleep operation is automatically performed, so that the optimal and comfortable operation for the user at bedtime is automatically continued.

On the other hand, when the interior of the room is darkened from the stop mode, and the controller 43 determines that the room is dark, the stop mode is continued as shown by a downward arrow in FIG. Here, when the sleep mode is simply set to be dark, the sleep mode is suddenly executed at night even when the user is absent. However, according to the present invention, the inconvenience does not occur.

When the user returns home during the daytime stop mode, the controller 43 returns to the normal mode as shown by the horizontal arrow in FIG. 17 when the controller 43 determines that the room is present.

Next, when the user turns off the lights in the room at night and goes to sleep as described above and determines that the user is absent from the state in which the sleep mode is set as described above, the controller 43 continues to operate as shown in FIG.
Then, the sleep mode is continuously executed as shown by the horizontal arrow. Here, if the mode is simply set to stop when the user is absent (hidden) mode, the operation (or energy saving) stops because the user hardly moves when going to bed. Such inconvenience does not occur.

When the room becomes bright in the morning from the sleep mode and the controller 43 determines that the room is bright,
The sleep mode is continuously executed as indicated by the upward arrow in FIG. Here, if the mode is simply set to stop (hidden) mode when the user is absent and bright, driving (or energy saving) is stopped in the morning while the user is sleeping, but according to the present invention, No inconvenience occurs.

If the sleep mode (or hikameme) mode is continued for, for example, 25 hours or more in the automatic driving mode, the controller 43 shifts to the stop mode as shown in FIG. This prevents unnecessary power consumption. Then, the mode that stops when the room is bright and the room is present is released, and the normal mode is set.

Next, when only the indoor unit A is exhibited and operated at a store or the like, the operation changeover switch 48 is switched to the "DEMO" position. In this case, the controller 43 is the blower 13 of the user side unit A.
When the automatic operation is selected by the automatic switch 58 of the remote controller R in this state, the delay time (15 seconds) of the determination of the presence / absence of the room based on the detection of the human body operation by the human sensor 31 is performed. Minutes).

That is, in this case, the occupancy is immediately detected when the motion sensor 31 detects a human body motion (absence → occupied) or no longer detects the motion (occupied → absent). Alternatively, it is determined that the user is absent, and the light emission color of the display 34 is switched between green (normal mode) and red (stop / reverse mode).

Thus, when the air conditioner AC is exhibited at a store or the like, when the operation status of the human sensor 31 is explained to the customer, the display color of the display 34 is immediately switched. And make it easier to appeal.

[0063]

As described in detail above, according to the present invention, in an air conditioner provided with a human sensor for detecting a human body motion and whose operation is controlled based on the output of the human sensor, the ambient illuminance is reduced. Since an optical sensor for detection is provided and the driving mode is controlled based on the output of the human sensor and the optical sensor, for example, it is determined that the room is present based on the output of the human sensor as in claim 2, If it is determined based on the output of the optical sensor that it is bright, the normal operation mode is set, and if it is determined that it is bright, and if it is determined that it is absent based on the output of the human sensor, it is stopped or energy saving. , The useless operation can be prevented from continuing in the absence state.

Further, when it is determined that there is no presence in the stop or energy saving mode as in the third aspect of the present invention, and when it is determined that the image has become dark based on the output of the optical sensor, the mode is maintained. It is possible to prevent the inconvenience of suddenly starting driving for bedtime when it becomes dark despite being absent.

Further, as in the fourth aspect of the present invention, it is determined that the room is present in the normal operation mode, and if it is determined that the room has become dark based on the output of the optical sensor, the operation mode is suitable for sleeping. As a result, when the user goes to sleep with the lights turned off at night, the operation mode is automatically switched to the operation mode suitable for going to bed, and extremely comfortable automatic driving can be realized.

Further, it is determined that the driving mode suitable for bedtime is dark in the driving mode according to the fifth aspect of the present invention, and the driving mode is maintained even when it is determined that the user is absent based on the output of the human sensor. Thereby, even if the user goes to bed and hardly moves, and it is determined that the motion sensor is absent,
The driving mode suitable for bedtime is automatically continued, and the comfort is further improved.

In the driving mode suitable for bedtime as in the sixth aspect of the present invention, it is determined that the user is absent, and the driving mode is maintained even when it is determined based on the output of the optical sensor that the image becomes bright. As a result, the user is in the morning while sleeping, and the driving is not stopped even if the room becomes bright, and the driving mode suitable for sleeping is continued.
Further, it is possible to realize more comfortable automatic driving control.

[Brief description of the drawings]

FIG. 1 is a front view of a use side unit of an air conditioner of the present invention.

FIG. 2 is a sectional view of a use side unit of FIG. 1;

FIG. 3 is a refrigerant circuit diagram of the air conditioner of the present invention.

FIG. 4 is an enlarged front view of a display unit of the use side unit of FIG. 1;

FIG. 5 is a front view of the display unit of FIG.

FIG. 6 is a cross-sectional view of the display unit of FIG.

FIG. 7 is a side view of the use side unit of FIG. 1;

FIG. 8 is a side view of the user-side unit.

FIG. 9 is a cross-sectional view of a Fresnel lens of the motion sensor of the use side unit of FIG. 1;

FIG. 10 is a diagram showing a vertical detection range of a human sensor of the use side unit of FIG. 1;

11 is a diagram showing a detection range in the horizontal direction of the motion sensor of the use side unit of FIG. 1;

FIG. 12 is an electric circuit diagram of the use side unit of FIG. 1;

FIG. 13 is an electric circuit diagram of the sensor substrate of FIG.

FIG. 14 is a front view of a remote controller of the air conditioner of the present invention.

FIG. 15 is a front view of the air conditioner of the present invention with the cover of the remote controller opened.

FIG. 16 is a diagram for explaining operation mode switching during the automatic operation of the air conditioner of the present invention.

FIG. 17 is a view for explaining operation mode switching during the automatic operation of the air conditioner of the present invention.

FIG. 18 is a diagram illustrating the operation mode switching during the automatic operation of the air conditioner of the present invention.

FIG. 19 is a diagram illustrating the operation mode switching during the automatic operation of the air conditioner of the present invention.

[Explanation of symbols]

 Reference Signs List 2 Compressor 4 Heat source side heat exchanger 8 User side heat exchanger 13 Blower 21 Cabinet 22, 24 Suction port 23 Panel 25 Blowout port 26 Storage unit 27 Display unit 29 Sensor board 31 Human sensor 32 to 35 Display 36 Optical sensor 42 Pyroelectric element 43 Controller 48 Operation changeover switch 49, 58 Automatic switch A User side unit AC Air conditioner B Heat source side unit F Fresnel lens R Remote controller

Claims (6)

[Claims] 1. A human body sensor for detecting a human body movement,
An air conditioner whose operation is controlled based on the output of the human sensor, comprising an optical sensor for detecting ambient illuminance, and controlling an operation mode based on the outputs of the human sensor and the optical sensor. And air conditioner. 2. A state in which it is determined that the room is occupied based on the output of the human sensor, and when it is determined that the room is bright based on the output of the optical sensor, the normal driving mode is set and the room is determined to be bright. 2. The air conditioner according to claim 1, wherein when it is determined that the user is absent based on the output of the human sensor, the mode is set to a stop or energy saving mode. 3. The air according to claim 2, wherein the mode is determined to be absent in the stop or energy saving mode, and the mode is maintained even when it is determined that the image has become dark based on the output of the optical sensor. Harmony machine. 4. A driving mode suitable for bedtime when it is determined that the room is occupied in a normal driving mode, and when it is determined based on an output of the optical sensor that the room becomes dark. 2 air conditioner. 5. The driving mode according to claim 4, wherein the driving mode is determined to be dark in a driving mode suitable for bedtime, and the driving mode is maintained even when it is determined that the user is absent based on the output of the human sensor. Air conditioner. 6. The driving mode, which is determined to be absent in a driving mode suitable for bedtime, and that the driving mode is maintained even when it is determined based on the output of the optical sensor that the light has become bright. 5 air conditioners.