JPH0678838B2 - Spot air conditioner - Google Patents

Description

TECHNICAL FIELD The present invention relates to a spot air conditioner for performing local cooling or the like,
In particular, the present invention relates to a spot air conditioner that drives and controls a blowing duct to control the wind direction.

(Prior Art) Generally, in various factories and the like, a spot air conditioner for local cooling is provided to improve a working environment. In this spot air conditioner, as disclosed in Japanese Utility Model Publication No. 61-101333, a refrigerant circuit including a compressor, a condenser, an evaporator and an expansion mechanism is housed in a housing mounted on a wagon. In addition, a condensing fan and an evaporating fan are housed, and the cold air that has exchanged heat with the evaporator is blown toward the worker from a blowing duct connected to the upper part of the housing for local cooling. There is something.

Further, the blow-out duct is connected to a swing cylinder, and the swing cylinder is pivotally supported on the housing by a diametrical pin, and the motor is connected via a link mechanism. Then, the motor is driven to swing the blowout duct to ensure cooling in a wide range.

(Problem to be Solved by the Invention) In the spot air conditioner described above, the blowing duct is configured to switch between a fixed mode and a swing mode by driving or stopping a motor by a swing switch.

However, in this spot air conditioner, no consideration is given to the movement of the worker who is the subject of air conditioning, and when this worker moves, in the fixed mode, it means that cold air is blown in an unnecessary direction, There is a problem that the air conditioning is wasted and the comfort of the air conditioning is not exhibited at all.

Further, in the swing mode, the cold air blowing direction changes regardless of the movement of the worker, so that the cool air is only intermittently blown toward the worker and sufficient comfort is achieved. There was a problem that it was not planned. Particularly, in the spot air conditioner, since the air conditioning effect is exerted by directly blowing cold air to the worker, there is a problem that the worker cannot be comfortable only by receiving the cold air intermittently.

Furthermore, since no abnormality is considered in the motor or the like that causes the blowout duct to swing, when the swinging speed of the blowout duct decreases or does not swing in the swing mode, the worker or the like does not recognize it. No abnormality could be detected.

Therefore, in spite of the occurrence of an abnormality, the motor continues to be energized, and the reliability of the entire apparatus is low. Moreover, since the blowout duct cannot be swung accurately, there is a problem that comfortable air conditioning cannot be performed.

The present invention has been made in view of such a point, and detects a person to be air-conditioned by a person detecting means to move the blowout duct following the movement of the person to be air-conditioned, and at the same time, to detect an abnormality in a motor or the like. The purpose of this is to improve the comfort of the air conditioner and to improve the reliability of the entire device by detecting it.

(Means for Solving the Problem) In order to achieve the above object, as shown in FIG. 1 (a), the means taken by the invention according to claim 1 first sucks indoor air to generate conditioned air. The air conditioner main body (12), which is rotatably attached to the air conditioner main body (12), and which blows out the conditioned air, and the blowout duct (16). There is provided duct drive means (2) for rotating the tube with respect to 12) to change the blowing direction. Then, a person detecting means (72) for detecting a person to be air-conditioned in an air-conditioning area to be air-conditioned by the air-conditioned air, and the blow-out duct (16) in response to a person detecting signal output by the person detecting means (72). Wind direction control means (75a) for controlling the duct drive means (2) so as to face the person to be air-conditioned
And are provided. Further, the person detecting means (72) is
A person detection device for determining and detecting the presence of an air-conditioned person in a predetermined detection area, each of which has a predetermined light emission directivity angle (± θH, ± θH) in the detection area, and each light emission directivity angle. A pair of light emitting means (H1, H2), which are arranged with a predetermined opening angle to each other so that the (± θH, ± θH) areas do not overlap with each other and emit infrared rays alternately, and both light emitting means (H1, H1) in the detection area. H2), and the light emission directivity angle (± θH, ± θ of each light emitting means (H1, H2)
H) has a predetermined light receiving directivity angle (± θJ) that partially overlaps the region, and is provided with a single light receiving means (J) for receiving the reflected light of the infrared light emitted from the light emitting means (H1, H2). There is.
In addition, the person detecting means (72) receives the output of the light receiving means (J) and outputs a person detecting signal when the reflection amounts of the infrared rays emitted from the respective light emitting means (H1, H2) are both set values or more. It is configured such that a person detection determination means (75h) for outputting is provided.

Further, the means taken by the invention according to claim 2 uses the person detecting means (72) according to the invention according to claim 1 as an ultrasonic wave detecting means, and each has a predetermined transmission directivity angle (± θH) in the detection area. , ± θH), and a pair of transmitting means (H1, H1) that alternately emit ultrasonic waves and are arranged with a predetermined opening angle so that the respective transmitting directivity angle (± θH, ± θH) regions do not overlap. H2) and both transmitting means (H1, H2) in the above detection area, and each transmitting means (H1
1, H2) has a predetermined reception directivity angle (± θJ) that partially overlaps the transmission directivity angle (± θH, ± θH) region, and the transmission means (H
1, H2) and a single receiving means (J) for receiving a reflected wave of the ultrasonic wave emitted from the ultrasonic wave. In addition, the human detection means (72) receives the output of the reception means (J), and when the reflection amounts of the ultrasonic waves emitted from the respective transmission means (H1, H2) are both above a set value, a human detection signal. It is configured such that a person detection determination means (75h) for outputting is output.

The means taken by the invention according to claim 3 is provided with an air conditioning control means (8) for controlling the air conditioning operation of the air conditioner body (12), and the person detecting means (72) according to the invention of claim 1 above. Detects a person to be air-conditioned in an air-conditioning area to be air-conditioned by the conditioned air, outputs a person detection signal when the detection is performed, and outputs a person non-detection signal when the detection is not performed. A wind direction control means (75a) is configured to output a signal, and the wind duct control means (75a) is responsive to the person detection signal and the movement signal of the person detection means (72).
6) controls the duct drive means (2) so that the person (6) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned, while the person detecting and judging means (72) of the person detecting means (72). 75h) receives the output of the light receiving means (J), and when the reflection amount of the infrared light emitted from each light emitting means (H1, H2) is both a set value or more, a human detection signal is sent to each of the light emitting means (H1, H2). ), The human undetected signal is output when both the reflection amounts of the infrared rays emitted from (1) and (2) are both less than or equal to a set value. In addition, the human detection means (72), after receiving the human detection signal from the human detection determination means (75h), only the reflection amount of the infrared ray emitted from the one light emitting means (H1 or H2) is the set value. When it becomes lower than the above, it is determined that the person to be air-conditioned has moved in the direction of the directivity angle (± θH) region of the other light-emitting means (H2 or H1), and a person movement determination means (75i) for outputting a movement signal is output. ) Is provided and configured.

Further, the means taken by the invention according to claim 4 is that the person detecting means (72) according to the invention of claim 3 is an ultrasonic wave detecting means, and the person detecting / determining means (75h) is a receiving means ( J) output, the human detection signal is emitted from each of the above transmission means (H1, H2) when the reflection amount of the ultrasonic wave emitted from each transmission means (H1, H2) is more than the set value. It is configured to output the person undetected signal when the reflection amount of the sound wave is less than or equal to the set value and when either one is less than or equal to the set value. Further, after the human movement determination means (75i) receives the human detection signal from the human detection determination means (75h), only the reflection amount of the ultrasonic wave emitted from the one transmission means (H1 or H2) is the set value. When it becomes lower than that, it is determined that the person to be air-conditioned has moved in the direction of the directional angle (± θH) region of the other transmission means (H2 or H1) and outputs a movement signal. .

Further, in the invention of any one of claims 1 to 4,
The means taken by the invention according to claim 5 is person detecting means (72).
Is composed of one person detection sensor that scans the inside of the air-conditioning area to detect the person to be air-conditioned, and the means devised by the invention according to claim 6 is such that the person detecting means (72) detects the air-conditioning area. It is composed of a plurality of human detection sensors which are divided into a plurality of groups and are monitored for each of the sections to detect a person to be air-conditioned.

Further, in the invention of any one of claims 1 to 4,
The means implemented by the invention according to claim 7 is a person detecting means (72).
Is provided at the tip of the blowout duct (16), and the means taken by the invention according to claim 8 is the wind direction control means (75a).
However, the duct drive means (2) is arranged so that the blowout duct (16) moves toward the air-conditioned person within an air-conditioning region within a preset angle centered on the attachment point of the blowout duct (16). In the means of the invention according to claim 9, the wind direction control means (75a) moves the blowout duct (16) in the three-dimensional direction toward the air-conditioned person. Thus, the duct driving means (2) is controlled.

Further, the means taken by the invention according to claim 10 is an air conditioner main body (12) for sucking indoor air to generate conditioned air, and an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner main body (12).
And are provided. A blowout duct (16) that is rotatably attached to the air conditioner body (12) and blows out the conditioned air, and the blowout duct (16) is rotated with respect to the air conditioner body (12). The duct drive means (2) for changing the blowing direction is provided. Further, it detects a person to be air-conditioned in an air-conditioning area to be air-conditioned by the air-conditioned air, outputs a person detection signal at the time of detection, outputs a person non-detection signal at the time of non-detection, and identifies movement of the person to be air-conditioned. A person detecting means (72) for outputting a movement signal, and the blowing duct (16) following the movement of the person to be air-conditioned in response to the person detecting signal and the movement signal of the person detecting means (72). The target is a spot air conditioner provided with a wind direction control means (75a) for controlling the duct drive means (2) so as to move toward the person. In addition, when a movement signal from the person detecting means (72) is received, a drive for outputting the movement signal to the wind direction control means (75a) after a lapse of a predetermined time (t1) corresponding to the time required for a slight movement of the person to be air-conditioned. The delay means (75m) is provided. Further, the means taken by the invention according to claim 11 is such that, in the invention of claim 3 or 4, the drive delay means (75 m) in the invention of claim 10 is provided.

Further, the means taken by the invention of claim 12 is the above claim
Similar to the tenth invention, an air conditioner body (12), an air conditioning control means (8), a blowing duct (16), a duct drive means (2), a human detection means (72), and a wind direction control means (75a) are provided. The target is the spot air conditioner. In addition, the person detection means (72) outputs a person detection signal, so that a predetermined time (t
Counting means (TM7) for counting 7) and the coefficient means (TM7)
The person detecting means (72) until a predetermined time (t7) is counted by
Is continuously outputting the human detection signal, the predetermined time (t7)
After the lapse of time, an intermittent control means (83) for controlling the fan drive means (12d) is provided so that the rotation speed of the fan (12f) for blowing the conditioned air changes intermittently. The means taken by the invention according to claim 13 is the invention according to claim 3 or 4, wherein the counting means (TM7) and the intermittent control means (83) according to the invention of claim 12 are provided. .

Further, in the inventions of claims 12 and 13, the means taken by the invention of claim 14 is such that the intermittent control means (83) is reset by the movement signal of the person detecting means (72) and the person undetected signal. And the above-mentioned claims 12-14.
In any one of the inventions described above, in the means implemented by the invention according to claim 15, the intermittent control means (83) includes a fan driving means (12).
d) is configured to intermittently control the power supply,
Furthermore, the means taken by the invention according to claim 16 is the fan drive means, wherein the intermittent control means (83) intermittently changes the rotation speed of the fan (12f) between a high rotation speed and a low rotation speed. (12d) is configured to be controlled to a high rotation drive and a low rotation drive.

The means taken by the invention according to claim 17 is the position detecting means according to the invention according to claim 3 or 4, which detects the rotation limit position of the blowout duct (16) in correspondence with the end of the air-conditioning region ( 7) and the position signal output by the position detecting means (7) and the movement signal of the person detecting means (72), the person to be air-conditioned moves out of the air-conditioning area. The duct drive means (2) so as to stop at the motion limiting position
And a duct stop means (75n) for controlling the.

Further, as shown in FIG. 1 (b), the means taken by the invention according to claim 18 is the same as the invention according to claim 10 described above, that is, the air conditioner body (12), the air conditioning control means (8), and the blowout. The target is a spot air conditioner provided with a duct (16), a duct drive means (2), a human detection means (72), and a wind direction control means (75a). In addition, in response to the person non-detection signal output after the person detection means (72) outputs the person detection signal, the person detection means (72) waits until a predetermined time (t2) elapses in the air conditioning operation state before the person non-detection signal output. As described above, the short-term standby means (75j) for controlling the air conditioning control means (8) is provided. Further, the means taken by the invention according to claim 19 is the above-mentioned claim 3
Alternatively, in the invention of claim 4, the short-term standby means (75j) of the invention of claim 18 is provided.

The means taken by the invention of claim 20 is the above claim
In addition to the invention of 18 or 19, the waiting time (t2) set by the short-term standby means (75j) where the human detection means (72) is not detected
When the time elapses, the air conditioning control means (stops the air conditioning operation and the duct moving operation in a state where the human detection signal of the human detection means (72) can be automatically restored and waits until a predetermined time (t3) elapses. 8) and long-term standby means (75l) for controlling the duct drive means (2).

Further, in the invention of claim 20 described above, the means taken by the invention of claim 21 is that the long-term standby means (75l) and the human detection means (72) have a preset standby time until no human is detected ( t
When 3) has elapsed, the air-conditioning control means (8) is configured to bring the system down so that the air-conditioning operation cannot be automatically restored, and the means devised by the invention according to claim 22 is a long-term standby means. (75l) is configured to control the duct drive means (2) so that the blow-out duct (16) stops at the center of the air-conditioning area and stand by.

Further, the means taken by the invention according to claim 23 is the invention according to claim 3 or 4, wherein the person detecting means (72) is placed in an air conditioning area in response to the person undetected signal of the person detecting means (72). A person search means (75k) for searching for the person to be air-conditioned is provided.

Further, in the above-mentioned invention of claim 23, the means taken by the invention of claim 24 is the duct drive means (so that the person searching means (75k) automatically swings the blowout duct (16) in the air-conditioning area. 2) is controlled so that the human detection means (72) attached to the tip of the blowout duct (16) is configured to scan the inside of the air-conditioning area, and the means taken by the invention of claim 25 is The person searching means (75k) is configured to search for a person to be air-conditioned in an air conditioning operation state before the person undetected signal output from the person detecting means (72).

Further, as shown in FIG. 1 (c), the means taken by the invention of claim 26 is the same as that of the invention of claim 3 or 4,
A mode switching means (76) for manually switching the control mode of the blowout duct (16) to a fixed mode, an automatic swing mode, and a person tracking mode, and detecting both end rotation limit positions of the blowout duct (16). When the fixed mode is set by the position detecting means (7) for outputting a position signal at each of the rotation limiting positions and the mode switching means (76), the blowing duct (16) is held in a fixed state. When the automatic swing mode is set by the fixed control means (75b) for controlling the duct drive means (2) and the mode switching means (76), the blowout duct (by the position signal of the position detection means (7) ( 16) and an automatic swinging means (75c) for controlling the duct driving means (2) so that the blowing duct (16) is reciprocally rotated. Further, when the wind direction control means (75a) is set to the human tracking mode by the mode switching means (76), the duct driving means (2) is controlled to perform human tracking.

The means taken by the invention according to claim 27 is an air conditioner main body (12) for sucking indoor air to generate conditioned air, and an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner main body (12). Is provided. The air-conditioner main body (12) is rotatably attached to the air-conditioner main body (12) and blows out the conditioned air.
There is provided duct drive means (2) for rotating with respect to 2) and changing the blowing direction. Further, it detects a person to be air-conditioned in an air-conditioning area to be air-conditioned by the air-conditioned air, outputs a person detection signal at the time of detection, outputs a person non-detection signal at the time of non-detection, and identifies movement of the person to be air-conditioned. The target is a spot air conditioner provided with a person detecting means (72) for outputting a movement signal. In addition, the mode switching means (76), the position detection means (7), the fixed control means (75b) and the automatic swing means (75c) according to the invention of claim 26.
And a wind direction control means (75a) are provided, and the human detection means (72) is preset so that no person is detected when the fixed mode signal and the automatic swing mode signal of the mode switching means (76) are output. When the air-conditioning operation time (t5) has elapsed, the air-conditioning stop means (75d) for controlling the air-conditioning control means (8) so as to stop the air-conditioning operation in a state where the human detection signal of the human detection means (72) can be automatically restored. Is provided.

Further, in the invention of claim 26, the means taken by the invention of claim 28 is provided with the air-conditioning stopping means (75d) in the invention of claim 27, and the invention of claim 27
Alternatively, in addition to the invention of claim 28, the measure taken by the invention of claim 29 is a preset air-conditioning stop until the person detecting means (72) detects no person after the stop signal of the air-conditioning stopping means (75d) is output. When the time (t6) has elapsed, the system is provided with a system stop means (75e) for controlling the air conditioning control means (8) so that the system goes down to a state where the air conditioning operation cannot be automatically restored. In addition to the invention of any one of claims 27 to 28, the means implemented by the invention of claim 30 is an automatic stop switching means (8) for controlling on / off of an air conditioning stop means (75d).
4) is provided.

Further, as shown in FIG. 1 (d), the means taken by the invention according to claim 31 is the same as the invention according to claim 10 described above, in which the air conditioner body (12), the air conditioning control means (8) and the blowout are provided. The target is a spot air conditioner provided with a duct (16), a duct drive means (2), a human detection means (72), and a wind direction control means (75a). Further, position detection means (7) for detecting the rotation limit positions of both ends of the blowout duct (16) and outputting a position signal at each rotation limit position, and the blowout by the position signal of the position detection means (7). Automatic swing means (75) for controlling the duct drive means (2) so that the duct (16) reciprocally rotates.
c) and the control mode of the blowout duct (16) at least between the automatic swing mode and the human tracking mode by manual operation, and the automatic swing means (75c) in the automatic swing mode.
And a mode switching means (76) for operating the wind direction control means (75a) in the human tracking mode. in addition,
A half rotation time (ta) required for the blowing duct (16) to rotate from one rotation limiting position to the other rotation limiting position in the automatic swing mode is preset, and the position detecting means (7) is provided. When the position signal output of is stopped, a half rotation counting means (TMa) for counting the half rotation time of the blowout duct (16),
First abnormality detecting means (75f) for performing abnormality processing unless the position detecting means (7) outputs the next position signal by the time the half rotation counting means (TMa) counts a predetermined half rotation time (ta). And are provided.

Further, the means taken by the invention according to claim 32 is the position detecting means (7), the automatic swinging means (75c) and the mode switching means (76) in the invention of claim 31 in the invention of claim 3 or 4. ), Half rotation counting means (TMa) and first abnormality detecting means (7
5f) and are provided.

The means taken by the invention of claim 33 is the above claim
31 half rotation counting means (TMa) and first abnormality detecting means (7
Instead of 5f), after the position signal of the position detection means (7) is output in the automatic swing mode, the output stop time (tb) required until the position signal output is stopped by the rotation of the blowing duct (16). ) Is preset and the position detection means (7) receives the position signal, the output stop counting means (TMb) for counting the output time of the position signal and the position detection means (7) The output stop counting means (TMb) outputs a predetermined output stop time (tb)
Second abnormality detection means (75g) that performs abnormality processing when counting
And are provided.

Further, the means taken by the invention according to claim 34 is the invention according to claim 3 or 4, wherein the output stop counting means (TMb) and the second abnormality detecting means (75g) according to the invention according to claim 33 are provided. In addition to the invention of claim 31 or 32, the output stop counting means (TMb) and the second abnormality detection according to the invention of claim 33 are provided. And a means (75g) is provided, and the means taken by the invention according to claim 36 is the above-mentioned claim 31.
In any one of the inventions from 1 to 35, the abnormality detecting means (75c, 75
d) is configured to stop the drive of the duct drive means (2).

(Operation) With the above configuration, in the invention according to claim 1, the person detecting means (72) monitors whether or not there are persons to be air-conditioned, for example, workers in various factories in the air-conditioning area.

On the other hand, the air conditioner main body (12) sucks indoor air to generate conditioned air, for example, cool air or warm air, and blows the cold air or the like from the blowout duct (16). When the person detecting means (72) detects the worker, the person detecting means (7
2) The wind direction control means (75
a) controls the duct drive means (2), for example, controls the motor (41) of the duct drive means (2), and directs the blowout duct (16) toward the worker.

In the invention according to claims 3 and 5 to 9, when the worker moves to the left or right, the movement is detected by the human detection means (72), and a movement signal is output. In response, the wind direction control means (75a) is changed to the duct drive means (2).
The blowout duct (16) is rotated or moved in a three-dimensional direction following the movement of the operator to track the person.

At the time of this person tracking, in the invention according to claim 10 or 11, the drive delay means (75m) is based on the movement signal of the person detection means (72), and after a minute time (t1), for example, 1 second has passed, the blowing duct. The person (16) is tracked so that the person can be accurately tracked.

Therefore, the person detecting means (72) receives the infrared rays emitted from the pair of light emitting means (H1, H2) and reflected by the object by the light receiving means (J). Then, the human detection determination means (75h) outputs a human detection signal when the reflected light of the infrared light emitted from each of the light emitting means (H1, H2) is equal to or more than the set value.
At other times, the person undetected signal is output.

In that case, the opening angle between both light emitting means (H1, H2) is set so that the directional angle (± θH) regions of both light emitting means (H1, H2) do not overlap, so that the background of glass, iron plate, etc. Even if there is a specular reflector, both light emitting means (H1, H
The infrared light intensity from 2) will not be incident on the light receiving means (J) at the same time when it is above the set value. Therefore, there is no erroneous detection that a human body exists even though it does not exist.

On the other hand, the light emitting directivity angle (± θH) of each light emitting means (H1, H2)
Since the light receiving directivity angle (± θJ) of the light receiving means (J) and the light receiving directivity angle (± θJ) of the light receiving means (J) are set to overlap with each other, the human body exists over the light emitting directivity angle (± θH) region of both light emitting means (H1, H2). In this case, the infrared rays emitted from the respective light emitting means (H1, H2) are diffusely reflected by the clothing surface of the person to be air-conditioned, and the infrared rays from both the light emitting means (H1, H2) are received at the same time (J).
The presence of the person to be air-conditioned is surely detected.

Further, in the invention according to claim 3, when only the infrared ray from one of the light emitting means (H1 or H2) becomes lower than the set value after the presence of the person to be air-conditioned is detected, the person movement determining means (75i ), The other light emitting means (H2 or H
It is determined that the person to be air-conditioned has moved in the direction of the light emission directivity angle (± θH) region of 1).

In that case, even if the infrared intensity from one of the light emitting means (H1 or H2) accidentally exceeds the set value due to the presence of a specular reflector other than the person to be air-conditioned, the human detection determination means (75h) before that.
Therefore, as long as the human detection signal is not output, it is not erroneously detected as the movement of the person. Therefore, the moving direction of the person to be air-conditioned can be detected with a simple structure of the pair of light emitting means (H1, H2) and the single light receiving means (J) without providing a separate detection device.

In the invention according to claims 2 and 4, the person detecting means (72) discriminates the person to be air-conditioned by ultrasonic waves and outputs a person detecting signal, a person undetecting signal or a movement signal.

Further, in the invention according to claim 12 or 13, when the person detecting means (72) outputs the person detecting signal, the counting means (TM7) starts counting, and the person detecting means (72) has a predetermined time (t7). If the person detection signal is continuously output, for example, if the worker continues to receive the cool air without moving at the same place, the intermittent control means (83) causes the fan (12) to operate after the elapse of the predetermined time (t7).
Run f) intermittently. Specifically, in the invention according to claim 15, the supply of electric power to the motor (12d) that is the fan driving means is intermittently performed to intermittently reduce the blown air volume. Also,
In the sixteenth aspect of the present invention, the motor (12d) that is the fan driving means is intermittently changed between high rotation and low rotation to intermittently blow out strong wind and weak wind. Also, claim 14
In the invention according to, the intermittent control means (83) is reset by the movement signal of the person detecting means (72) and the person undetected signal.

In the invention according to claim 17, the blowout duct (16) is provided.
The rotation range of is restricted by the position detection means (7), and when the worker moves out of this rotation restriction position to outside the air conditioning area,
The duct stop means (75n) stops the blowout duct (16) at its rotation control position, for example, at the right end of the air conditioning area. Thereafter, when the worker returns from the right end, the blow duct (16) is again tracked by the person as described above.

Further, in the invention according to claims 18 to 20, when the worker is separated from the air conditioning area and the human detection means (72) outputs a human undetected signal, the short-term standby means (75) is responsive to the human undetected signal.
j) makes the air-conditioning control means (8) stand by in the air-conditioning operation state before the person undetected signal is output. When the worker returns within the waiting time (t2) of the short-term standby means (75j), the blow-out duct (16) is tracked by the person as described above, while when the worker does not return, the long-term standby means (75l) The air conditioning control means (8) stops the air conditioning operation and stands by in a state where it can be automatically restored. When the worker returns within the waiting time (t3) by the long-term standby means (75l), the air conditioning operation is restarted by the human detection signal of the human detection means (72) and, at the same time, the blowout duct (16) is tracked.

Further, in the invention according to claims 21 and 22, the long-term standby means (75l) stops the blowout duct (16) in the center of the air-conditioning region and waits, while the standby time (t3) elapses,
Air-conditioning control means (8) The system is brought down to a state where automatic recovery is not possible.

In the invention according to claim 23, the person detecting means (72)
When no longer detects the worker, the human search means (75k) scans the human detection means (72) in response to the human undetected signal,
For example, in the invention according to claim 24, the blowing duct (16) is automatically swung and scanned to search for the worker. that time,
In the invention according to claim 25, the search is performed in the air conditioning operation state before the person undetected signal is output. For example, in the temperature control operation, the temperature control operation is performed, and in the air blowing operation state, the air blowing operation is performed.

Further, in the invention of claim 26, the mode switching means (76)
Is set to the fixed mode, the fixed control means (75b) holds the blowout duct (16) fixed, and when set to the automatic swing mode, the automatic swing is performed to blow cold air. Furthermore, when the mode switching means (76) is set to the person tracking mode, the wind direction control means (75a) controls the duct drive means (2) to direct the blowout duct (16) toward the worker as described above. .

In the invention according to claims 27 to 29, when the mode switching means (76) is set to the fixed mode or the automatic swing mode,
Particularly, in the invention according to claim 30, when the air-conditioning stop means (75d) is activated by the automatic stop switching means (84), the air-conditioning operation time (t5 ), The air conditioning operation is stopped in a state where it can be automatically restored. After that, if the worker does not return,
The system stop means (75
(e) shuts down the air conditioning control means (8) to a state where it cannot be automatically restored.

Further, in the inventions according to claims 31 and 32, in the automatic swing mode, the blowout duct (16) is rotated by the duct drive means (2), while the blowout duct (16) is rotated at predetermined both ends. When rotating to the limit position, the position detecting means (7) detects the both rotation limit positions and outputs a position signal. Upon receiving this position signal, the automatic swinging means (75c) controls the duct driving means (2), and, for example, the motor (41)
Is reversed and the outlet duct (16) is rotated in the opposite direction. By repeating this reverse operation, the blowing duct (16) is, for example, reciprocally rotated right and left and automatically swung to blow cold air or the like into a predetermined air conditioning region.

During the automatic swing control, when the blow-out duct (16) starts to rotate from the one rotation limit position and the position signal output of the position detecting means (7) stops, the half rotation counting means (TMa) counts. start. The blowing duct (16) does not reach the other rotation limit position before the half rotation counting means (TMa) counts the preset half rotation time (ta), and the position detecting means (7) is reached. Does not output a position signal, the first abnormality detecting means (75f) will detect an abnormality, for example, the motor (41) of the duct driving means (2) or the position detecting means (7). Particularly, in the invention according to claim 36, the abnormality processing is performed by stopping the motor (41).

Further, in the invention according to claims 33 to 35, the blowout duct (16) reaches each rotation limit position and the position detecting means (7) is reached.
When outputs a position signal, the output stop counting means (TMb) starts counting. Then, the blowout duct (16) does not reverse until the output stop counting means (TMb) counts the preset output stop time (tb), and the position detecting means (7) continues to output the position signal. And the second abnormality detection means (75g)
Detects an abnormality in the motor (41) of the duct drive means (2) and stops the motor (41).

(Effect of the invention) Therefore, according to the spot air conditioner of claims 1 and 2, the person detecting means (72) is provided, and the air outlet duct (16) is air-conditioned based on the person detecting signal of the person detecting means (72). Since the air-conditioned air can be surely blown to the air-conditioned person while being directed to the person, the air-conditioned person can surely receive the air-conditioned air and remarkably improve comfort by air conditioning. In addition, the air conditioning effect as local air conditioning can be surely exhibited.

Further, a pair of infrared ray emitting means (H1, H2) is provided on both sides of the single infrared ray receiving means (J) so that the emission direction angle areas thereof do not overlap each other, and the light receiving direction angle of the light receiving means (J) is The area is arranged so that the light emitting directivity angle areas of the respective light emitting means (H1, H2) are overlapped, and the air conditioning is performed only when the reflection amount of the infrared rays emitted from both light emitting means (H1, H2) is equal to or more than the set value Output the detection signal of the target person, or
Since the detection signal is output using ultrasonic waves, the presence of the air-conditioned person can be ensured irrespective of the presence or absence of a specular reflector in the rear and without being affected by the ambient temperature. Therefore, it is possible to improve the human detection accuracy.

Further, according to the inventions according to claims 3 and 4, the conditioned air is surely blown to the person to be air-conditioned while the blowout duct (16) is moved following the movement of the person to be air-conditioned. Since the person to be air-conditioned can reliably receive the conditioned air even if he / she moves by various works, the comfort by the air-conditioning can be remarkably improved. Further, since the blow-out duct (16) automatically tracks the person, the person to be air-conditioned does not need to change the blow-out direction at all, and operability can be improved.

Further, when only the infrared intensity from one of the light emitting means (H1 or H2) changes below the set value after the above human detection signal is output, the direction of the light emitting directivity angle region of the other light emitting means (H2 or H1) is changed. Determine that the person to be air-conditioned has moved,
Alternatively, since the movement is determined using ultrasonic waves, the movement of the person to be air-conditioned can be accurately detected with a simple configuration without separately providing a detection device.

Further, according to the invention of claim 5, since one person detection sensor (72) detects a person, the person can be detected with a small number of parts, and the cost can be reduced. According to the present invention, since the plurality of people detecting sensors constantly monitor the inside of the air-conditioned area, the person to be air-conditioned can be quickly detected, and the blowing duct can be moved immediately.

Further, according to the invention of claim 7, the outlet duct (16)
Since it is possible to accurately detect the person to be air-conditioned in front of, the signal processing and the like can be performed with a simple configuration. According to the invention of claim 8, the blow-out is performed corresponding to the working space of the person to be air-conditioned. While the duct (16) can be reliably tracked by the person, according to the invention of claim 9, the blow-out duct (16) can be tracked by a wide area, and the comfort can be further improved. .

Further, according to the inventions of claims 10 and 11, the movement of the blowout duct (16) is performed in a minute time (t
1) Since it is delayed, when the person to be air-conditioned moves to the left and right for a moment and then returns, the outlet duct (16)
Does not move, the current state is maintained, useless operation of the blowout duct (16) can be prevented, and highly accurate control can be performed, so that the reliability of the wind direction control can be improved. it can.

Further, according to the inventions of claims 12 and 13, when the person to be air-conditioned receives the conditioned air continuously for a predetermined time (t5),
When the person to be air-conditioned does not move and stays in the same place, the amount of blown air changes intermittently, so overcooling and overheating can be prevented, and comfort can be further improved. Furthermore, since this intermittent operation is performed after the optimum environment, the intermittent operation time can be shortened and the reliability of the fan drive means (12d) can be improved.

Particularly, in the invention according to claim 15, so-called on / off control is performed, so that it is possible to reliably perform control with a simple configuration and reduce power consumption. According to the sixteenth aspect of the present invention, so-called strength control is performed, so that it is possible to ensure comfort even during weak air blowing and to perform more suitable air conditioning.

Further, in the invention according to claim 14, since the intermittent control means (83) is reset due to the movement of the person to be air-conditioned, it is possible to prevent the comfort from being impaired by returning to the normal control due to the movement of the person to be air-conditioned. can do.

Further, according to the invention of claim 17, when the person to be air-conditioned moves to the outside of the air-conditioning area, the blow-out duct (16) is stopped at the rotation-restricted position, so that the person to be air-conditioned has the rotation-restricted position. Air-conditioned air can be received immediately when returning further, and especially when leaving the air-conditioning area for a short time, since there is a high possibility that it will return from the same place, the air-conditioned person can immediately receive air-conditioned air, which is more comfortable. Will be improved.

Further, according to the inventions according to claims 18 and 19, even if the person to be air-conditioned moves to the outside of the air-conditioning area, the person stands by.
When the air-conditioned person returns, the air-conditioned air can be received as it is, so that the comfort and the operability can be improved. On the other hand, according to the invention of claim 20, the air-conditioned person can When the air conditioner does not return for a long time, the air conditioning operation is stopped, so that it is possible to prevent waste of electric power and save energy. Also, when the person to be air conditioned returns, it automatically recovers, further improving operability. According to the invention of claim 21, the system goes down when the person to be air-conditioned does not return for a long time, so that the air-conditioning operation does not restart carelessly and high-precision air-conditioning control can be performed. According to the invention of claim 22, the blow-out duct (16) is stopped at the center of the air-conditioning area, so when the person to be air-conditioned returns, it is possible to promptly respond.

According to the invention of claim 23, the person searching means (75
Since the person to be air-conditioned is searched by k), if the person to be air-conditioned enters the air-conditioning area, the person to be air-conditioned can automatically receive the air-conditioned air, and at the same time, the comfort is improved. According to the invention of claim 24, the operability can be improved, and since the person detecting means (72) scans by the automatic swing of the blowout duct (16), the scanning dedicated to the person detecting means (72) is performed. No means needed,
The structure can be simplified and the human detection means (7
According to the invention of claim 25, the outlet duct (16) can be accurately directed to the person to be air-conditioned by the output signal of 2), and the air conditioner before the person undetected signal is output from the person detecting means (72). Since the search is performed in the operating state, when the person to be air-conditioned enters the air-conditioning area, he / she can immediately receive cool air or the like, which can further improve the comfort.

Further, according to the invention of claim 26, the blowing duct (16)
Can be set to three modes, so the air duct (16) can be fixed according to the work and number of people to be air-conditioned,
It is possible to perform automatic swing or person tracking control, and it is possible to perform air conditioning that meets various conditions.

Further, according to the inventions according to claims 27 and 28, since the air conditioning operation is stopped when there is no person to be air-conditioned, it is possible to prevent wasteful air conditioning and save energy.
According to the invention of claim 29, since the system goes down when the person to be air-conditioned is not in use for a long time, the air-conditioning operation is prevented from being inadvertently restarted, and highly accurate air-conditioning control can be performed. According to the thirtieth aspect, it is possible to switch and set the automatic air-conditioning stop operation, so that it is possible to perform air-conditioning control corresponding to various usage modes.

Further, according to the inventions of claims 31 and 32, the abnormality is detected at the interval of the position signal outputted by the position detecting means (7), and therefore the duct driving means (2), that is, the motor. Since the abnormality of (41) and the position detection means (7) can be known accurately, abnormality processing such as driving stop of the motor (41) can be accurately performed, and reliability of the entire device including duct control etc. You can improve your sex. Further, since swing control of the blowout duct (16) can be performed accurately, reliable air conditioning can be performed and comfort can be improved. Further, since the output signal of the position detecting means (7) for detecting the position of the blowout duct (16) is used, it is not necessary to provide any abnormality detecting sensor or the like, and the number of parts does not increase. Therefore, it is possible to inexpensively detect an abnormality with a simple structure.

Further, according to the inventions of claims 33 to 35, since the abnormality is detected by the output time of the position detecting means (7), the abnormality can be detected in a short time, and the abnormality processing can be performed. Can be done quickly.

In particular, according to the invention of claim 36, since the motor (41) of the duct drive means (2) is stopped at the time of abnormality, it is possible to prevent erroneous control and to burn the motor (41). It is possible to reliably prevent sticking.

(Example) Hereinafter, the Example of this invention is described in detail based on drawing.

As shown in FIG. 2 and FIG. 3, (1) is a spot air conditioner, which is provided in various factories or the like and blows cool air to an air conditioning target person such as a worker to perform local cooling. .

The spot air conditioner (1) is configured such that an air conditioner body (12) is mounted on a wagon (11) having casters (11a) so as to be movable, and the wagon (11) has an upper stage portion (11b).
And the lower part (11c). And
The air conditioner body (12) includes a compressor (12a) and a condenser (12).
b), an expansion mechanism (not shown) and an evaporator (12c) are provided with a refrigerant circuit (not shown) connected by a refrigerant pipe, and the compressor (12a) has a lower stage portion of the wagon (11) ( 11
In addition to the compressor (12a), the drain tank (13), the electric box (14), etc. are installed in the lower part (11c) of the wagon (11) in the housing (12) of the air conditioner body (12). 15) It is stored and installed inside.

The upper part (11b) of the wagon (11) has a housing (1
The condenser (12b) and the evaporator (12c) are provided on both sides of the inside of 5), and one motor (12d) which is a fan driving means is provided with a condensing fan (12e) in the central portion. The evaporation fan (12f) is connected and stored. Further, a condenser side exhaust port (15b) is opened in the top plate (15a) of the housing (15), and the outlet duct (1
6) is rotatably attached via a duct drive means (2), and the blowout duct (16) is formed of a flexible pipe whose wind direction can be changed.
It is communicated with the discharge port (12g) of (f) through the top plate (15a) of the housing (15).

Then, the indoor air that has flowed in from one side surface of the housing (15) due to the drive of both fans (12e, 12f) is transferred to the condenser (12
While heat is exchanged in b) to become warm air, which is discharged upward from the exhaust port (15b), indoor air that has flowed in from the other side surface of the housing (15) exchanges heat in the evaporator (12c) to become cool air,
It is configured to blow out from the blowout duct (16) toward the person to be air-conditioned.

In addition, (17) is a drain pan provided in the lower part of the evaporator (12c), and is connected to the drain tank (13) to guide the drain of the evaporator (12c) to the drain tank (13). There is.

As shown in FIGS. 4 and 5, the duct drive means (2) rotates with the drive mechanism (4) in the casing (3) attached to the top plate (15a) of the housing (15). The mechanism (5) is housed and configured. The casing (3) is formed into a flat box body having an open lower surface, and a flat side wall (31, 32, 33) on the right half of the plan view of FIG. 5 with the cold air blowing side (the side of FIG. 5A) as the front. ) Enclosed by a drive mechanism housing (21) and a semicircular side wall (34) in the left half of FIG.
A rotation mechanism housing (22) surrounded by is formed, and the casing (3) is fixed to the housing (15) by a flange (3a) at the lower end of the side wall (32, 33, 34).

The top wall (35) of the casing (3) is provided with an opening (35a) through which the rotating mechanism (5) penetrates, and the inner surface (bottom surface) of the top wall (35) is rotated. A guide wall (36) of the moving mechanism (5) is formed so as to project slightly downward. The guide wall (36) is close to the opening (35a), and is continuous with the front side wall (34), and is rotated by the guide wall (36) and the upper end of the front side wall (34). Constitutes an annular guide portion (37). Further, the lower support plate (23) and the motor mounting plate (24) of the drive mechanism (4) and the rotation mechanism (5) are fixed to the side walls (31, ~, 34) and the guide wall (36). A plurality of fixed columns (38, 38, ...) Are continuously formed, and the lower receiving plate (23) has an opening (23a) communicating with the discharge port of the evaporation fan (12f). It is set up. The opening (23a)
Is formed concentrically with the opening (35a) of the upper surface wall (35), and is bent upward to the periphery of the opening (23a) of the lower receiving plate (23) to form an annular folding piece (23b). Is formed in an L shape.

As shown in FIG. 6, the drive mechanism (4) is formed by connecting a worm gear (42) and a belt transmission mechanism (43) to a geared motor (41), and the geared motor (41) is
The motor body (41a) is fixedly supported by the motor mounting plate (24), and the drive shaft (41b) is horizontally installed so as to be parallel to the upper surface wall (35). The height of the casing (3) is formed corresponding to (the vertical height in FIG. 4).

In the worm gear (42), the worm (42a) is fitted and fixed to the drive shaft (41b), and the worm (42a) is
A worm wheel (42b) meshing with a) is provided by being fitted to the shaft (44) by utilizing the gap formed by the semicircular guide wall (36) and the flat left side wall (33). ing. The shaft (44) has a bearing (44) on an upper support plate (45) and a lower support plate (23) fixed to the left side wall (33).
a, 44a), and the worm wheel (42b) is fixed to the upper part.

Further, the shaft (44) has a flange (44
The timing pulley (46) of the belt transmission mechanism (43) is fitted and mounted on b). The timing pulley (46) has a toothed belt formed on the outer peripheral surface thereof, and the toothed belt (47) is hooked on the timing pulley (46), and between the recessed portion (46a) of the inner peripheral portion and the worm wheel (42b). Is provided with a compression spring (48), and the timing pulley (46) moves the shaft (44) by the spring force of the compression spring (48).
Is pressed against the flange (44b) of the
6) is slip-fitted to the shaft (44).

On the other hand, the rotating mechanism (5) is formed by connecting the blowout duct (16) to the rotary cylinder (51) via the elbow (52), and the rotary cylinder (51) is composed of the rotary cylinder body (51a). The upper part of the is fitted into the annular guide part (37), and the lower part is fitted onto the folded piece (23b) of the lower receiving plate (23) and is supported in the vertical direction. An annular extension piece (5) facing the opening (35a) is provided on the inner peripheral portion of the upper end surface of the rotary cylinder body (51a).
1b) is continuously formed on the upper side, a belt-like projection (51c) is formed on the upper outer peripheral surface, and a tooth portion (51d) is formed on the lower outer peripheral surface, and the belt portion is formed on the tooth portion (51d). The belt (47) of the transmission mechanism (43) is hooked.

Further, the upper end surface of the rotary cylinder body (51a) and the upper surface wall (35)
An upper thrust sheet (53) is interposed between the lower thrust sheet (53) and the lower support plate (23), and the lower thrust sheet (54) is interposed between the lower end face and the lower support plate (23). (2
The upper and lower end surfaces are sealed by being pressed upward by the spring force of 3). Further, an upper radial seat (5) is provided between the upper outer peripheral surface of the rotary cylinder body (51a) and the annular guide portion (37).
5), however, lower radial seats (56) are respectively provided between the lower inner peripheral surface and the folding pieces (23b).

Furthermore, on the upper inner peripheral surface of the rotary cylinder body (51a),
Three mounting flanges (57,57,5) for fixing the elbow (52)
7) is projected, and the mounting flange (57,57,57)
Are provided at unequal intervals such as 130 degrees and 100 degrees. The elbow (52) extends obliquely forward and upward from the rotary cylinder (51), the lower end is fitted to the annular extension piece (51b) of the rotary cylinder (51), and the blow duct is provided at the upper end. (1
6) is fitted. Then, the elbow (52) fixes the fixed column (58, 58, 58) bulged on the lower inner peripheral surface and the mounting flange (57, 57, 57) with a screw or the like to form a rotary cylinder ( 51).

On the other hand, as shown in FIG. 7, a notch (6) is formed in the lower portion of the guide wall (36), and a stopper (61) facing the notch (6) is provided in the rotary cylinder body (51a). Is projected on the outer peripheral surface of the upper part. Then, both end surfaces of the notch (6) are configured as stop surfaces (61a, 61a) with which the stopper (61) abuts, and the notch (6) and the stopper (61) constitute the rotary cylinder (51), that is, , The rotation of the outlet duct (16) is forcibly restricted, and the rotation range is, for example, 11
It is set to 0 degrees.

In addition, in front of the motor body (41a), there is an outlet duct (1
There is provided one limit switch (7) which is one position detecting means for regulating the automatic swing range (air conditioning area) of 6). The limit switch (7) is composed of a micro switch or the like and is provided by utilizing a gap formed by the semicircular guide wall (36) and the flat right side wall (32). It is attached to a support piece (39) connected to the other side wall (32). And, in the limit switch (7), the probe (71) is provided with the rotary cylinder body (51).
It is provided so as to contact the outer peripheral surface below the stopper (61) in a).

On the other hand, on the outer peripheral surface of the rotating cylinder body (51a),
As shown in the figure, a first protrusion (62) and a second protrusion (63) with which the probe (71) abuts are provided. Both the protrusions (62, 63) are in the axial direction (vertical direction) of the rotary cylinder body (51a).
The first projection (62) is formed on the outlet duct (16).
The second protrusion (63) is provided at the right end limit position of the automatic swing range of the left end limit position of the automatic swing range, respectively, and the guide motor (41) is controlled by the position signal of the limit switch (7) so that the blow duct (16). ) Is configured to swing, and the automatic swing range is set to be slightly smaller than the swing range by the notch (6), for example, set to 100 degrees.

On the other hand, one person detection sensor (72) which is a person detection means for detecting a person to be air-conditioned in the front is attached to the upper end of the outlet duct (16), and the person detection sensor (72) is
As shown in FIGS. 10 and 11, a pair of light emitting elements (H1, H2) which are light emitting means (transmitting means) fixed to the frame (72a) at an opening angle of a predetermined angle θ ₃ and In the center of the pair of light emitting elements (H1, H2), that is, both light emitting elements (H1, H2)
H2) and a light receiving element (J) which is a light receiving means (reception means) fixed to the frame (72a) so as to have constant set angles θ ₁ and θ ₂ , respectively.
The infrared light emitted from 2) is reflected by the light receiving element (J). However, in this embodiment,
θ ₁ = θ ₂ = θ, and therefore θ ₃ = 2θ.

Here, each of the light emitting elements (H1, H2) has a predetermined directivity angle (± θH), that is, a direction in which the intensity of infrared light emitted is equal to or higher than a certain level is a certain angle (± θH
It has a directivity that is limited to within H). Further, the light receiving element (J) also has a directivity in which the range of the incident direction in which infrared rays can be detected is limited to a predetermined directivity angle (± θJ). The relationship between the set angle θ and the directivity angles (± θH, ± θJ) is set so that θH <θ <θH + θJ.

That is, as shown in FIG. 11, the positional relationship between the light emitting elements (H1, H2) and the light receiving element (J) is determined by the directivity angle (± θ
J) and (± θH) range overlap, and at least infrared rays emitted from the light emitting element (H1 or H2) are reflected within the range of the directional angle (± θJ) of the light receiving element (J). There is one smooth plane, and the ranges of the directional angles (± θH) of both light emitting elements (H1, H2) do not overlap each other, and the infrared rays from both light emitting elements (H1, H2) At the same time, there is no smooth plane that is reflected by the light receiving element (J).

That is, the infrared rays emitted from the pair of light emitting elements (H1, H2) and reflected by one smooth flat surface forming the surface of the specular reflector (M) are simultaneously received by the light receiving element (J) with an intensity of the set value Vs or more. In other words, the infrared rays from any of the light emitting elements (H1, H2) are not input to the light receiving element (J), as shown in FIG. As shown, only infrared rays from one light emitting element (for example, H1) are input.

On the other hand, as shown in FIG. 14, an object that causes diffused reflection, that is, the clothes (Cl) of the person to be air-conditioned is
(1, H2) over the directivity angle (± θH) region, both light emitting elements (H1, H2) due to diffuse reflection on the surface.
When the infrared intensity from the light is incident on the light receiving element (J) at the set value Vs or more at the same time, a part of clothes (Cl) etc. exists in the direction angle (± θH) area of one light emitting element (for example, H1). However, if a part of the other light emitting element (H2) does not exist within the directivity angle (± θH) area, only the infrared ray from the light emitting element (H1) is received with the intensity of the set value Vs or more. It is adapted to be input to the element (J). Furthermore, the 15th
As shown in the figure, the clothing (Cl), that is, the movement of the person to be air-conditioned is identified by the order of receiving infrared rays from both light emitting elements (H1, H2).

Then, as shown in FIG. 12, when the light receiving element (J) is installed so that the center line of the light receiving element (J) is orthogonal to the background glass such as glass, and the background is a specular reflector (M), as shown in FIG. Also, the infrared rays emitted from both the light emitting elements (H1, H2) and then reflected by the specular reflector (M) are not reflected within the detection range of the light receiving element (J).

FIG. 16 shows a control block diagram of the spot air conditioner (1). The person detection signal output from the person detection sensor (72) is the A / D converter (included in the control unit (73). It is configured to be converted into a digital signal at 74) and input to the CPU (75). Furthermore, the position signal output from the limit switch (7) is input to the CPU (75), and the control mode of the outlet duct (16) is set to a fixed mode, an automatic swing mode, and a person tracking mode. A mode signal output from a mode switch (76) which is a mode switching means for switching, and an automatic stop for switching the air conditioning operation between continuous operation control and automatic stop control during the fixed mode and the automatic swing mode of the blowout duct (16). The ON / OFF signal of the energy-saving switch (84), which is the switching means for use, is input.

In addition, the control unit (73) has an RO in which program data for realizing a control flow described later is stored in advance.
A memory (77) consisting of M and RAM for storing processed data
It is connected to the CPU (75) and is installed in the memory (7
The sensor flag (ST
F), a person detection flag (HKF), a person non-detection flag (MKF), and a rotation control flag (RCF) are included, while the control unit (73) includes various timers (TM1 to T, not shown).
M7) and (TMa, TMb) are included.

Furthermore, the control unit (73) includes a right rotation drive circuit (78) and a left rotation drive circuit (79) for the geared motor (41), and a first relay (which constitutes an air conditioning control means (8). A relay drive circuit (80) for RY1) and a second relay (RY2) is provided so as to be connected to the CPU (75). Then, the geared motor (41) is configured to drive the right rotation and left rotation drive circuits (78, 7) based on the output signal of the CPU (75).
Forward / reverse control is performed by 9) while both relays (RY1, R
Y2) is configured to be ON / OFF controlled by the relay drive circuit (80) based on the output signal of the CPU (75).

Further, the fan control relay (X1) included in the air conditioning control means (8) is turned ON / OF by both the relays (RY1, RY2).
In addition to being F-controlled, the fan motor (12d) is drive-controlled through an intermittent control circuit (83) which is an intermittent control means included in the control unit (73), and is included in the air conditioning control means (8). Compressor control relay (X2) is ON
The compressor motor (9) is controlled to be turned off and drive-controlled. And the air conditioning control means (8)
Are configured to control the fans (12e, 12f) and the compressor (12a) to control the air conditioning operation.

FIG. 17 is a detailed circuit diagram of the control block diagram of FIG. 16. The power source (81) includes a stop contact (82a) and a blow contact (82).
b) and operation changeover switch (8c) with temperature control contact (82c)
2) via, the contact of the compressor control relay (X2), the series circuit in which the overcurrent prevention relay (51X) and the compressor motor (9) are connected in sequence, and the contact of the fan control relay (X1), Intermittent control circuit (83) with triac (83a)
And a series circuit in which the fan motor (12d) is sequentially connected are connected in parallel. Then, the intermittent control circuit (8
3) is a triac (83
It is configured to control ON / OFF of a) to intermittently supply electric power to the fan motor (12d) to intermittently operate the fan motor (12d).

Further, the transformer (Tr) is connected in parallel to the contact of the fan control relay (X1), the intermittent control circuit (83) and the series circuit of the fan motor (12d), and the triac (78a, 79a) is connected. Parallel drive circuit for right rotation (7
8) and drive circuit for left rotation (79) and geared motor (4
1) connected to the series circuit, the first relay (RY1) contacts and the fan control relay (X1) excitation coil connected to the series circuit and the second relay (RY2) contacts and compressor control relay The series circuits connected to the (X2) excitation coil are connected in parallel.

Further, as shown in the control flow described later, the CPU (75) responds to the human detection signal and the movement signal of the human detection sensor (72) when the human tracking mode signal of the mode changeover switch (76) is received. So that the blowout duct (16) faces the person to be air-conditioned, and also controls the girder motor (41) of the duct drive means (2) so as to move following the movement of the air-conditioning symmetrical person ( 75a) etc. are configured.

Next, the air conditioning control operation of this spot air conditioner (1) will be described based on the control flow shown in FIGS.

For this control flow, the operation changeover switch (8
2) is set to the temperature control contact (82c), and below, the fixed mode in which the blowout duct (16) is fixed in a fixed direction, and the blowout duct (16) automatically swings. The swing mode and the person tracking mode in which the blowout duct (16) rotates following the movement of the person to be air-conditioned will be described in order.

Therefore, first, the fixed mode will be described (see FIG. 20). After the power is turned on, initialization is performed in step ST1. For example, each flag (STF, HKF, MKF,
After the RCF) is reset, the process proceeds to step ST2, and the fans (12e, 12f) and the compressor (12a) are driven. In other words, CP
The relay drive circuit (80) becomes the first by the output signal of U (75).
Then, the second relays (RY1, RY2) are turned on, the fan control and compressor control relays (X1, X2) are turned on, and the fan motor (12d) and the compressor motor (9) are driven.

After that, the process proceeds from step ST2 to step ST3, the mode is determined, and since the mode is currently set to the fixed mode by the mode switch (76), the process proceeds to step ST401.
Determine whether the energy saving switch (84) is turned on,
If it is ON, the process proceeds to step ST402, and if it is OFF, the process skips step ST402 and proceeds to step ST403.
Then, in this step ST402, it is determined whether or not the person detection sensor (72) detects the person to be air-conditioned and outputs a person detection signal. If the person detection signal is output, step ST403 When the fans (12e, 12f) are stopped, the fan control relay (X1) is turned on, and the TRAQ (83a) of the intermittent control (83) is operated to continuously drive the step ST404. Move to the compressor (12a)
It is determined whether or not has stopped for 3 minutes.

In other words, in order to prevent continuous start / stop of the compressor (12a), once stopped, it will not restart for 3 minutes.
If three minutes have not elapsed, the operation moves from step ST404 to step ST405, moves the compressor (12a) to the stopped state and moves to step ST407, and if three minutes has elapsed, moves from step ST404 to step ST406. , Compressor (12
Compressor control relay (X2) when a) is stopped
Is turned on to drive the compressor (12a), and the process proceeds to step ST407.

After that, in step ST407, it is determined whether or not the automatic swing mode is set, and since the fixed mode is currently set, if the geared motor (41) is driven in step ST431, stop and then step ST408. Transfer, 5th
The timer (TM5) and the sixth timer (TM6) are reset, and the process proceeds to step ST409. If the person detection flag (MKF) is set, it is reset and then the process proceeds to step ST3.

Then, the operations from step ST3 to step ST409 are repeated, and the cold air is constantly blown out in a fixed direction. At this time, since the blowing duct (16) is a flexible pipe in the blowing direction, the worker or the like blows out the duct (16 ) Will be appropriately curved and set manually.

Next, the automatic swing mode will be described. After the power is turned on, steps ST1 to ST407 operate in the same manner as the fixed mode, and in this step ST407, the mode changeover switch (76) is set to the automatic swing mode. Therefore, the automatic swing mode is determined, the process proceeds to step ST410, and the automatic swing control routine described later is performed.
The geared motor (41) is driven to reciprocally rotate the blowout duct (16).

Then, move from step ST410 to step ST408,
It operates similarly to the fixed mode and returns to step ST3. Then, by repeating the above-mentioned operation, the outlet duct (1
6) automatically swings and moves within the air-conditioning area (1 in this embodiment).
Cold air is blowing out at 00 degrees.

Next, in the fixed mode and the automatic swing mode, if there is an air-conditioned person, the operation will be as described above.
The case where there is no person to be air-conditioned will be described (see FIG. 21).

First, in step ST402, the human detection sensor (7
When 2) outputs the person undetected signal, the determination becomes NO, the operation proceeds to step ST411, it is determined whether or not the person undetected flag (MKF) is set, and the person undetected signal output initial is set to "0". Therefore, the process proceeds to step ST412, and the fifth timer (TM5) is incremented, and then step ST413.
Then, it is determined whether or not a preset continuous operation time (t5) has elapsed.

Then, until the continuous operation time (t5) elapses, the process proceeds from step ST413 to step ST414, and both fans (12e, 12e
When f) is stopped, it is driven to move to step ST415, and like the above-mentioned step ST404, in order to prevent continuous start / stop of the compressor (12a), 3 minutes have passed since the compressor (12a) was stopped. After 3 minutes, it moves to step ST416, and if the compressor (12a) is started or driven, it continues to drive as it is, and before 3 minutes, it moves to step ST417. While stopping (12a), move to step ST418.

Then, in this step ST418, it is determined whether or not the automatic swing mode, and if it is the fixed mode, step ST43.
If the geared motor (41) is stopped in 2 and then returns to step ST3, if in automatic swing mode, moves to step ST419 and rotates the air outlet duct (16) as in step ST410. Then, the process returns to step ST3.

Repeat steps ST401, ST402, ST411, ~, ST419,
When the continuous operation time (t5) elapses until the person detection sensor (72) does not detect the person to be air-conditioned, that is, when the person to be air-conditioned does not come in front of the blow-out duct (16) in the fixed mode, automatic shaking is performed. In the mode, the human detection sensor (72) scans the inside of the air-conditioning area by the rotation of the blow-out duct (16), and if the person to be air-conditioned cannot be detected, the process proceeds from step ST413 to step ST420. In this step ST420, the fan control relay (X1) and the compressor control relay (X2) are OF
F to stop the fans (12d, 12f) and compressor (12a),
After stopping the air conditioning operation in a state where it can be automatically restored,
Move to ST421, reset fifth timer (TM5), move to step ST422, and set person undetected flag (MKF).

Then, move to step ST423, determine whether the fixed mode, in the case of automatic swing mode, move to step ST424,
After stopping the air outlet duct (16) in the center of the air conditioning area, the process proceeds to step ST425, while in the fixed mode, step ST4.
Skip 24 and move to step ST425, 6th timer (TM6)
After stepping through, move to step ST426. Then, in this step ST426, the preset air conditioning stop time (t
It is determined whether 6) has elapsed, and the air conditioning stop time (t
While returning to step ST3 until 6) elapses, when the air conditioning stop time (t6) elapses, it moves to step ST427 and after resetting the sixth timer (TM6), moves to step ST428 and the air conditioning control means (8) The system will go down to a state where it cannot automatically recover.

In other words, if there is no person to be air-conditioned, the continuous operation time (t
When the person to be air-conditioned returns to 5), the operation moves from step ST402 to step ST408 described above to perform the normal air-conditioning operation, while stopping the air-conditioning operation after the continuous operation time (t5) has elapsed. Then, after that, when the person to be air-conditioned returns within the air conditioning stop time (t6), the human detection signal from the human detection sensor (72) causes the process to move from step ST402 to step ST408, and automatically restarts the air conditioning operation. If the person to be air-conditioned does not return within the air-conditioning stop time (t6), the entire system is stopped. Even if the person to be air-conditioned is returned, the air-conditioning operation is not automatically restarted. It will be turned on again.

Then, in steps ST407 and ST418, the fixed control means (75b), and in steps ST410 and ST419, the automatic swing means (7b).
5c) are respectively configured and steps ST411, ~, ST4
At 24, the air-conditioning stop means (75d) starts steps ST425, ~, ST428.
The system stop means (75e) are configured respectively.

When the energy saving switch (84) is turned off, the operation proceeds from step ST401 to step ST403 and the air conditioning operation is not automatically stopped. In the control flow, when the air conditioning is stopped (step ST429 and thereafter), the process moves from step ST411 to step ST420, and the fifth timer (TM5) does not operate.

Next, the automatic swing control in steps ST410 and ST419 will be described based on the control flow in FIG.

First, in steps ST410 and ST419, when the geared motor (41) is normally or reversely rotated, the rotation of the geared motor (41) is transmitted to the rotary cylinder (51) via the worm gear (42) and the belt transmission mechanism (43). The rotating cylinder (51) rotates and the outlet duct (16) also rotates. Next, in step ST201, it is determined whether or not the limit switch (7) has output a position signal, and the limit switch (7) is outputting the position signal without contacting each protrusion (62, 63). If not, that is, if the outlet duct (16) is in the middle of rotation, the process proceeds to step ST202, the half rotation timer (TMa) which is the half rotation counting means is stepped, and the process proceeds to step ST203, where the half rotation timer (TMa ) Has counted a preset half-turn time (ta).

This half rotation time (ta) is the time required for the outlet duct (16) to rotate from one rotation limit position to the other rotation limit position, that is, from the right end to the left end or from the left end to the right end. It is set to the time required to move. Then, until the half turn time (ta) elapses, step ST203
Then, the operation returns to step ST201, and this operation is repeated. Normally, since the outlet duct (16) is set so as to reach the right end or the left end before the half turn time (ta) elapses, the limit switch ( 7) is a protrusion (62,63)
The position signal is output by touching.

When receiving the position signal of this limit switch (7), it moves from step ST201 to step ST204, resets the above half rotation timer (TMa), and then moves to step ST205, and whether or not the outlet duct (16) is rotating to the right. Is determined. That is,
The duct rotation direction before the position signal of the limit switch (7) is output is determined. For example, in the case of clockwise rotation in the clockwise direction of FIG. 5, based on the output signal of the CPU (75), Since the triac (78a) of the drive circuit for right rotation (78) is turned on via the drive transistor (not shown), it is determined from the output of this CPU (75) that the duct rotation direction is right rotation, and from step ST205 Move to step ST206, and turn off the triac (78a) of the right rotation drive circuit (78).
Then, the right rotation of the outlet duct (16) is stopped and at the same time, the CP
Based on the output signal of U (75), the triac (79a) of the counterclockwise rotation drive circuit (79) is turned on via another drive transistor (not shown), and the outlet duct (16) is rotated counterclockwise in FIG. Turn counterclockwise.

Subsequently, the above step ST206 moves to step ST207,
After stepping the output stop timer (TMb), which is the output stop counting means, the process proceeds to step ST208, and the output stop timer (Tb
Mb) determines whether or not the preset output stop time (tb) has been counted, moves to step ST209 until the output stop time (tb) has elapsed, and outputs the position signal of the limit switch (7). It is determined whether the output has stopped, the process returns to step ST207 until the output stops, and the above-mentioned step ST2
The operation up to 09 will be repeated.

During this output stop time (tb), the probe (71) of the limit switch (7) contacts the first protrusion (62) and the outlet duct (16) is inverted, so that the first protrusion (62) causes the probe (71) to move. ) Is set to the time required to move away from the probe (7).
It is set so that the position signal output of the limit switch (7) is stopped at a distance from 1). Therefore, if the output of the limit switch (7) stops within the output stop time (tb), the process moves from step ST209 to step ST210, resets the output stop timer (TMb), and then moves to step ST225 to perform normal processing. After that, the process returns to the above-mentioned step ST408 and the like, and the above-mentioned operations from step ST401 to step ST432 are repeated at a predetermined timing.

After that, when the outlet duct (16) starts rotating counterclockwise,
In the control flow of FIG. 22, the process proceeds from step ST201 to step ST202, the half rotation timer (TMa) is operated as described above, and the next position switch 7 outputs the position signal. And this limit switch (7)
When the second projection (63) comes in contact with and outputs a position signal, in step ST205, the duct rotation direction before the position signal is output can be identified by the output of the CPU (75). Therefore, the process proceeds to step ST211 and the right end of the previous time. Contrary to the position, the triac (79a) of the left rotation drive circuit (79) is turned off, the triac (78a) of the right rotation drive circuit (78) is turned on, and the outlet duct (16) is rotated right again.

After that, the steps ST212, ~, and ST214 are operated similarly to the left rotation start of steps ST207, ~, ST299 described above, the output stop timer (TMb) is activated, and the limit switch () is activated within the output stop time (tb). When the output of 7) stops, step
It will move to ST210. By repeating this operation, the blowing duct (16) is reciprocally rotated within a range of 100 degrees to perform an automatic swing operation, and the cool air is blown out within the range of rotation.

Then, this step ST201, ~, ST214 and step ST22
The automatic swinging means (75c) described above is constituted by 5.

Next, at the time of this automatic swing operation, step ST203
When the half rotation timer (TMa) counts the half rotation time (ta) and the time is up, the process moves to step ST215, the limit switch (7) and the geared motor (41) start the abnormal processing operation, and then move to step ST216. Abnormality processing will be performed.

In other words, the limit switch (7) has a half rotation time (ta).
Since it is set to output the position signal at a predetermined cycle within this, use this regular signal output, and if there is no position signal output within the half turn time (ta), determine an abnormality. become. Specifically, when the rotation speed of the blowout duct (16) is reduced due to a failure of the geared motor (41) or the rotation is not performed, further, the limit switch (7) fails due to a short circuit, etc. In the case where no output is made, neither of them is in a state in which normal swing control can be performed. Therefore, in step ST216, the geared motor (4
1) Stop, that is, turn off both triacs (78a, 79a)
At the same time, abnormal processing such as lighting of an abnormal lamp is performed.

In the automatic swing operation, when the output stop timer (TMb) counts the output stop time (tb) at step ST208 or step ST213 and the time is up, the process moves from step ST208 to step ST217 at the start of counterclockwise rotation. , After resetting the above output stop timer (TMb), go to step ST2
Moving to 18, it is judged whether or not the rotation control flag (RCF) is set, and if the output stop timer (TMb) has timed out from the normal control state, the rotation control flag (RCF) is "0". Therefore, the process proceeds from step ST218 to step ST219, sets the rotation control flag (RCF), and then proceeds to step ST211. On the other hand, when the output stop timer (TMb) times out at the start of the right rotation, the steps ST213 to ST2 are performed in the same manner as the above-mentioned left rotation start.
After performing operations 20 to ST222 to reset the output stop timer (TMb), determine and set the rotation control flag (RCF), the process proceeds to step ST206.

That is, the output of the detection signal of the limit switch (7) is set to be performed only within the output stop time (tb) until the rotation of the blowing duct (16) is reversed. If the output of the position signal does not stop within this output stop time (tb), the output stop is determined to be abnormal or erroneous control.

Therefore, as described above, for example, when the output stop timer (TMb) is timed out when the counterclockwise rotation start control is performed in step ST206 (steps ST217, ~, ST219), then in step ST211, the outlet duct ( The right rotation control that rotates 16) in the opposite direction will be performed. And
When the output is stopped by the limit switch (7) due to this right rotation control, the control of the above-mentioned step ST206 is determined to be erroneous control, and the routine moves from the above-mentioned step ST214 to step ST210 to perform normal processing. On the other hand, the above step ST
If the limit switch (7) continues to output the position signal even if the clockwise rotation control is performed in 211, the process proceeds from step ST213 to steps ST220 and ST221, and the rotation control flag (RCF) is set in step ST219. Move to ST223 and step ST224, and similarly to steps ST215 and ST216 described above, the limit switch (7) or geared motor (41)
The abnormality is determined and the geared motor (41) is stopped to perform the abnormality processing.

In step ST211, when the output stop timer (TMb) times up for the first time during the right rotation control, the process proceeds from step ST222 to step ST206 to perform the left rotation control once and the output of the limit switch (7) stops normally. If the output (step ST210) is continued, the abnormality process (step ST223) will be performed.

On the other hand, the above-described automatic swing control is a case where the duct rotation direction before the position signal output of the limit switch (7) can be identified, but when the automatic swing control starts at the time of starting or the like, it cannot be identified. There is. That is, when the probe (71) of the limit switch (7) is in contact with any of the protrusions (62, 63) at the time of start-up and the limit switch (7) is outputting a position signal, one Since only the signal from the limit switch (7), the outlet duct (1
It is unclear whether 6) is located at the right end or the left end, and it is not possible to distinguish whether it starts from left rotation or right rotation.

Therefore, by utilizing the point that the output of the position signal of the limit switch (7) stops regularly, the above-mentioned step ST20
The duct rotation direction is identified by the operations of 8, ST213, ST217, to ST222.

First, at the time of startup, start from step ST1,
Move from step ST410 to step ST201, step ST20
After operating up to 5, in step ST410, the outlet duct (16) is set to rotate in either the left or right direction, for example, it is set to start left rotation. After moving to step ST206 and rotating the geared motor (41), step ST207, ~, S
The operation up to T209 is performed, and it is determined whether the limit switch (7) stops the signal output within the output stop time (tb). At that time, when the outlet duct (16) is located at the right end and the limit switch (7) outputs the position signal by the first protrusion (62), the output stop time ( The output of the position signal is stopped within tb), and the process moves from step ST209 to step ST210.
After that, normal swing control is performed.

On the other hand, when the left rotation is started in step ST206, the outlet duct (16) is located at the left end, and the limit switch (7)
When the position signal is output by the second protrusion (63), the output stop timer (TMb) should be timed up until the position signal is output, because it is the state that the right rotation should be performed, and step ST217 , ~, Step ST via ST219
Moving to 211, the right rotation is started. Then, since the outlet duct (16) is in a state where it should rotate to the right, the output of the limit switch (7) stops within the output stop time (tb), and the process moves from step ST214 to step ST210 to perform normal swing control. Is done.

Further, in step ST205, the operation may be started from the clockwise rotation operation. At that time, the operation moves from step ST213 to steps ST220, ST22, and ST222 and operates in the same manner as described above. That is, the blowing duct (16) is rotated left and right for a minute time, and the duct rotation direction is identified by stopping the output of the position signal.

Then, in these steps ST202, ST203, ST215, and ST216, the first abnormality detecting means (75f) causes ST207, ..., ST209, ST212, ..., S
The second abnormality detecting means (75 g) is composed of T214, ST217, to ST224.

Next, the person tracking mode will be described.

Therefore, first, regarding the signal processing operation of the human detection sensor (72), which is the basis of the direction control of the outlet duct (16), etc.
A description will be given based on the control flow in the figure and the control timing in FIG. FIG. 18 shows the control contents of the CPU (1),
In step ST101, the light emitting element (H2) on the right side is turned on (first
(See Fig. 9 (ii)), emit infrared light, and then step ST1
At 02, it is determined whether or not the output signal V2 of the light receiving element (J) is equal to or more than the set value Vs. If the set value is Vs or more, step ST
At 103, turn on the left light-emitting element (H1) (Fig. 19 (i))
Infrared is emitted, and it is further determined in step ST104 whether or not the output V1 of the light receiving element (J) is equal to or more than the set value Vs. If the determination is YES, it is determined that the person to be air-conditioned exists in front of the light receiving element (J), and step ST10
After starting the human detection operation in step 5 and outputting the human detection signal in step ST106, check in step ST107 that the signals from both light emitting elements (H1, H2) are simultaneously input to the light receiving element (J). After the sensor flag (STF) shown is set to "1", the process returns to step ST101.

After that, the above flow is repeated, and the determination in step ST104 changes and the output V1 of the light receiving element (J) is set to the set value.
When NO becomes lower than Vs, it is determined that the person to be air-conditioned is out of the directivity angle range (± θH) of the light emitting element (H1) on the left side, and the sensor flag (STF) is further set in step ST108. When it is YES, it is determined that the person to be air-conditioned is a person moving from the front to the right by a change from the state in which the person to be air-conditioned is present in front of the light receiving element (J). Step ST109
The air-conditioning target person starts the right movement operation in which the person has moved to the right, and outputs a right movement signal in step ST110.

On the other hand, when the output V2 of the light receiving element (J) is NO lower than the set value Vs in the determination in step ST102, the left light emitting element (H1) is turned on in step ST110, and the light receiving element in step ST112. (J) output V1 is set value V
It is determined whether it is s or more. Then, if the determination result is YES, it is further determined in step ST113 whether or not the sensor flag (STF) is "1". If the determination result is "1", the person to be air-conditioned is in front of the light receiving element (J). When it is determined that the change is from the existing state, in step ST114, the person to be air-conditioned starts the left movement operation to the left, and in step ST115, the left movement signal is output.

In other cases above, that is, when the determinations in steps ST102 and ST112 are both NO and the outputs V1 and V2 of the light receiving elements (J) are not equal to or more than the set value Vs even when both light emitting elements (H1, H2) are in the ON state, Alternatively, if the infrared rays from one of the light emitting elements (H1 or H2) when the determination in steps ST108 and ST113 is NO and the person detection state is not detected, the operation of "no person detection" is performed in step ST116. Start and
In step ST117, a person undetected signal is output.

Then, when the above flow is completed, the sensor flag (STF) is set to "0" in step ST118, the process returns to step ST101, and the above flow is repeated. In steps ST102, ST104 and ST105, the human detection determination means (75h)
A person movement determination means (75i) is configured by 104, ST108, ST112 and ST113.

Subsequently, the control operation in the human tracking mode based on the signal processing operation of the human detection sensor (72) described above will be described with reference to FIGS. 23 to 25.

First, after the power is turned on, the same operation as in the fixed mode is performed from step ST1 to step ST3. At this step ST3,
Since the mode changeover switch (76) is set to the human tracking mode, this human tracking mode is determined and the process proceeds to step ST11, and it is determined whether or not the human detection flag (HKF) is "0". . Since the human detection flag (HKF) is reset when the power is turned on, the process moves to step ST12, and it is determined whether or not the human detection sensor (72) outputs the human detection signal. If the person undetected signal is output in step ST117, the process proceeds to step ST13, and if the person detected signal is output in step ST105, the process proceeds to step ST30.

Therefore, when the target person for air conditioning is not detected (see Fig. 24),
In step ST13, the undetected person operation is started, and then in step ST14, it is determined whether or not the undetected person flag (MKF) is “0”. Since this person undetected flag (MKF) has been reset when the power was turned on, etc., from step ST14 to step ST15
To step ST16 by moving the second timer (TM2) forward.
Then, it is determined whether or not the second timer (TM2) has passed a preset short-term waiting time (t2), and steps from step ST16 until the short-term waiting time (t2) has passed.
It will move to ST17.

Then, from step ST17, the short-term standby operation is performed, and the operation for searching for the person to be air-conditioned is performed. That is,
In step ST17, the geared motor (41) is driven, and the blowing duct (16) is oscillated in response to the output signal of the limit switch (7) as in the above-described automatic oscillation mode.

Next, in Step ST181, when both fans (12e, 12f) are stopped, the fan control relay (X1) and the triac (83a) of the intermittent control circuit (83) are turned on to continuously drive, Move to step ST182, reset the seventh timer (TM7) for starting intermittent operation, which will be described later, and perform step ST1.
Moving to 9, the compressor (12
3) after stopping the compressor (12a) to prevent continuous start / stop of a)
It is determined whether or not minutes have elapsed, and after 3 minutes, step ST20
When the compressor (12a) is started or driven, it continues to be driven as it is, and after 3 minutes, it moves to step ST21 and stops the compressor (12a) and returns to step ST3. Then, from step ST11 described above
The operation up to ST21 will be repeated.

Specifically, the short-term standby time (t2) is set to, for example, 5 minutes, and when the human detection sensor (72) does not detect the person to be air-conditioned, the compressor (12a) and the fan (12e, 12f). )
While waiting for 5 minutes for the person to be air-conditioned who has driven the machine to blow out cool air into the air-conditioned area, the air duct (16)
Is rotated to search for an air conditioning target person in the air conditioning area.

After that, when the person to be air-conditioned cannot detect it by the time when the short-term standby time (t2) elapses, it shifts to a long-term standby operation, and first proceeds from step ST16 to step ST22 to stop the geared motor (41) and blow out the duct (16 ) To the center of the air conditioner body (12), then move to step ST23, turn off the fan control relay (X1) and compressor control relay (X2), and turn off both fans (12e, 12f) and Compressor (12
a) will be stopped.

Then, it moves to step ST24, resets the second timer (TM2), moves to step ST25, sets the person undetected flag (MKF) to "1", moves to step ST26, and moves to the third timer (TM3). ), The process proceeds to step ST27, and it is determined whether or not the third timer (TM3) has passed the preset long-term waiting time (t3). Then, the operation returns to step ST3 from step ST27 until the long standby time (t3) elapses, and the above-mentioned operation is repeated. At that time, since the person undetected flag (MKF) is set (step ST25), Return from step ST14 to step ST22,
The second timer (TM2) never advances.

If the human detection sensor (72) does not detect a person to be air-conditioned within this long standby time (t3) and the long standby time (t3) elapses,
The process moves from step ST27 to step ST28, and the third timer (TM
After resetting 3), the process moves to step ST29, the system goes down, the system is restarted by turning the power on again, and the control flow starts from step ST1.

In other words, in this long-term standby operation, specifically, when the long-term standby time (t3) is set to, for example, 1 hour, and there is no person to be air-conditioned even after the short-term standby time (t2) has elapsed, The compressor (12a) and the fans (12e, 12f) are stopped to stop the blowing or blowing of the cold air, and the blowing duct (1
6) will be stopped at the center and wait for the air-conditioned person to enter. If there is no person to be air-conditioned even after one hour has passed, the entire system is stopped, and even if the person to be air-conditioned enters the monitoring area of the human detection sensor (72), the compressor (12a) etc. will automatically Never boots.

In steps ST13 to ST21, the short-term standby means (75j), the person searching means (75k) in step ST17, and step ST2.
The long-term standby means (75l) is composed of 2 to ST29.

Next, in this person tracking mode, the person detection sensor (72)
When outputs a human detection signal, the process moves from step ST12 to step ST30 (see FIG. 23), and the human detection establishment operation is started. Therefore, first, the case where the person to be air-conditioned is not moving will be described. Then, the process proceeds from step ST30 to step ST31, and when the geared motor (41) is driven, the geared motor (41) is stopped and the blowing duct (16 ) Stop.

Then, the process proceeds to step ST32, and the seventh timer (TM7), which is the counting means for intermittent operation start, is stepped up, and then step ST5
Move to 01, determine whether or not the seventh timer (TM7) has passed a preset continuous operation time (t7), move to step ST502 until the continuous operation time (t7) has elapsed, and perform fan control The relay (X1) is turned on and the triac (83a) of the intermittent control circuit (83) is turned on to continuously supply electric power to the fan motor (12d) to continuously drive the fans (12e, 12f).

Then, the process proceeds to step ST33, and like step ST404, it is determined whether or not 3 minutes have passed after the compressor (12a) was stopped to prevent continuous start / stop of the compressor (12a). If three minutes have elapsed, the process moves to step ST34, or the compressor (12a) is started or, if it is being driven, it continues to drive and moves to step ST36, while 3 Before the lapse of minutes, the process proceeds to step ST35 and the compressor (12a) is stopped, and the process proceeds to step ST36. Then, in this step ST36, each timer (TM1 to TM4)
After resetting, the process proceeds to step ST37, the human detection flag (HKF) is set to "1", the process proceeds to step ST38, the human non-detection flag (MKF) is reset, and the process returns to step ST3.

Then, in step ST11, the human detection flag (HK
F) is standing (step ST37), the determination is NO, the process moves to step ST39 (see FIG. 25), it is determined whether or not the person movement condition is satisfied, and the movement is performed in steps ST110 and ST115 described above. Determine whether the signal is output, if the air-conditioned person does not move, it will return to step ST30, this step ST3, ST11, ST321, ~, ST323
The operation of ST30 to ST39 is repeated at a predetermined timing until the continuous operation time (t5) has elapsed.

That is, for example, during the search for the person to be air-conditioned in step ST17, when the human detection sensor (72) detects the person to be air-conditioned, the rotation of the blow-out duct (16) is stopped in step ST31, and the blow-out duct (16) is stopped. Is directed to the person to be air-conditioned, and cold air is blown to the person to be air-conditioned to perform local cooling.

Further, during the long-term standby in steps ST22 to ST27, if the person to be air-conditioned enters the monitoring area of the human detection sensor (72), the process proceeds from step ST12 to step ST30 as described above, and the compressor (12a) and the fan (12e , 12f) to blow cool air to the person to be air-conditioned.

Then, the person to be air-conditioned continues to work at the same place without moving, and the seventh timer (TM7) sets the continuous operation time (t
After 7), step ST501 to step ST50
Move to 3 and install the triac (83a) of the intermittent control circuit (83).
ON / OFF control is performed based on the control signal of the CPU (75) to intermittently supply power to the fan motor (12d), and the process proceeds to step ST33 to repeat the above operation. In other words, if the air-conditioned person does not move for a long time, the fan motor (12d)
Is turned on and off to intermittently operate the fans (12e, 12f) between normal rotation and rotation due to inertia, and normal air blowing and weak air blowing are repeated intermittently to reduce the cold air blowing amount.

Next, a case will be described in which the person subject to air conditioning moves during the person detection establishment operation (see FIG. 25).

First, when the human detection sensor (72) outputs a movement signal in steps ST110 and ST115 described above, step ST39
In the step ST
Move from step 39 to step ST511, and the above intermittent control circuit (83)
If the triac (83a) is ON / OFF controlled, turn it on to continuously drive the fans (12e, 12f), reset the seventh timer (TM7) in step ST512, and then to step ST40. After moving to step up the first timer (TM1), the process moves to step ST41, and the first timer (TM1)
Is determined whether or not a preset delay time (t1) has elapsed, and step ST3 is performed until the delay time (t1) has elapsed.
Will return to.

This delay time (t1) is set to, for example, 1 second, and when the person to be air-conditioned leaves the monitoring area of the human detection sensor (72) and immediately returns, the blowing duct (16) should not move. The current status is maintained for 1 second. Then, the drive delay means (75 m) is configured by these steps ST40 and ST41.

After that, when the above delay time (t1) has elapsed, step ST
From step 41, the process proceeds to step ST42, where it is determined whether the person to be air-conditioned has moved rightward or leftward, and based on the output signal of the human detection sensor (72), the above-mentioned step ST11
When the right movement signal is output at 0, step ST43,
When the left movement signal is output in step ST115, step ST4
It will move to 4 respectively.

Therefore, first, the case of this right movement will be described. In the above-mentioned step ST43, it is determined whether or not the blowing duct (16) has rotated to the right end restricted position, and if it has not rotated to the right end restricted position. , That is, the first protrusion (62)
If the limit switch (7) is not outputting due to
Since it can be rotated rightward, the process proceeds from step ST43 to step ST45, and the geared motor (41) is rotated to rotate the outlet duct (16) rightward.

Then, in step ST46, the first timer (TM1) and the fourth timer (TM4) are reset, and in step ST47, the human detection flag (HKF) is reset, and then step S
Will return to T3. Since the human detection flag (HKF) is reset, the determination in step ST11 becomes YES, the steps ST30 to ST38 described above are performed once, and then the process returns to step ST40, and the delay time (t1) elapses. When the person to be air-conditioned is still moving to the right, the outlet duct (16) is rotated to the right in step ST45.

On the other hand, when the person to be air-conditioned is moving to the left, the same is true, the process moves from step ST42 to step ST44, and it is determined whether or not the blowout duct (16) is rotated to the left end control position. When there is no output signal from the limit switch (7) due to the protrusion (63), the process proceeds from step ST44 to step ST48, in which the geared motor (41) is rotationally driven in the opposite direction to rotate the outlet duct (16) to the left. After, step ST46
Then, the same operation as the above-described right rotation is performed.

In other words, when the person to be air-conditioned moves to the left or right within the air-conditioning area defined by the blowout duct (16), the human detection sensor (7
2) identifies the moving direction, and in steps ST45 and ST48, the geared motor (41) is rotated in the forward and reverse directions to rotate the outlet duct (16) to follow the movement of the person to be air-conditioned to perform human tracking.
The cold air will continue to be blown to the moving air-conditioned person.

On the other hand, in step ST43 and step ST44, when the outlet duct (16) is rotated to the right end limit position or the left end limit position, the outlet duct (16) remains the same even if the air-conditioned person moves further in the same direction. Since it cannot rotate in the direction, the process proceeds from step ST43 to step ST49, or from step ST44 to step ST50 to advance the fourth timer (TM4).

After that, the process moves from step 49 to step ST51 and from step ST50 to step ST52, and the fourth timer (TM4)
Returns from step ST51 or step ST52 to step ST3 until the preset stop time (t4) has passed, and the blowing duct (16) stops at each end restriction position until the stop time (t4) passes. There is. And this stop time (t
After step 4), step ST51 to step ST48,
Further, the operation moves from step ST52 to step ST45, the blowing duct (16) is rotated in the opposite direction and then moves to step ST46, and the above-described operation is performed.

In other words, if the person to be air-conditioned moves away from the end of the air-conditioning area, there is a high possibility of returning from that end, so the blowing duct (16) should be stopped at each end restriction position, and within this stop time (t4). When the person to be air-conditioned is detected, step ST39
Moving to ST30, while the person tracking is performed as described above, if the air-conditioned person does not return, the outlet duct (16) is rotated in the opposite direction, and whether or not the person detection signal is output in step ST12 as described above. Will be determined.

After that, after performing the short-term standby operation and the search operation (steps ST13 to ST21) as described above, the long-term standby operation (steps ST22 to ST29) is performed, and when the person to be air-conditioned returns during that time, the person tracking is performed again. Become.

The steps ST30 to ST47 constitute wind direction control means (75a), and the steps ST43, ST44 and ST49 to ST52 constitute duct stop means (75n).

If the operation changeover switch (82) is set to the blow contact (82b), only the fans (12e, 12f) will be driven by the control flow.

As described above, according to this embodiment, the person detection sensor (72) is provided, and the blowing duct (16) is moved by the person to be air-conditioned based on the person detection signal and the movement signal of the person detection sensor (72). The air-conditioned air can be surely blown to the person to be air-conditioned, and the person to be air-conditioned can surely receive the air-conditioned air even if he or she moves due to various works or the like. Therefore, the comfort of air conditioning can be significantly improved, and the air conditioning effect as local air conditioning can be reliably exhibited. Further, since the blow-out duct (16) automatically tracks the person, the person to be air-conditioned does not need to change the blow-out direction at all, and operability can be improved.

Further, since the one person detection sensor (72) is provided at the tip of the blowout duct (16), the person to be air-conditioned in front of the blowout duct (16) can be accurately detected, and the signal processing etc. can be simplified. With this configuration, the blowing duct (16) can be reliably tracked by the person in accordance with the working space of the person to be air-conditioned.

The human detection sensor (72) includes a pair of infrared light emitting elements (H1, H2) on both sides of a single infrared light receiving element (J).
The light emitting directivity angle regions of the light receiving element (J) and the light emitting element (H
(1 and H2) are arranged so as to overlap with the emission direction angle region, and the detection signal of the person to be air-conditioned only when the reflection amount of infrared light emitted from both light emitting elements (H1 and H2) is above the set value. Since it is configured to output, it is possible to reliably detect the presence of an air-conditioned person regardless of the presence or absence of a specular reflector at the rear, and without being affected by the ambient temperature. The accuracy can be improved.

In addition, one of the light emitting elements (H1, H
When only the infrared intensity from 2) changes below the set value, it is determined that the person to be air-conditioned has moved in the direction of the emission angle range of the other light emitting element (H1, H2). It is possible to accurately detect the movement of the person to be air-conditioned with a simple configuration without separately providing.

Furthermore, since the movement of the air outlet duct (16) is delayed by a minute time (t1) relative to the movement of the person to be air-conditioned, the air outlet duct (16) will be Since the current state is maintained without moving, wasteful operation of the blowout duct (16) can be prevented, and highly accurate control can be performed, so that the reliability of the wind direction control can be improved. .

In addition, if the person to be air-conditioned receives the conditioned air continuously for a predetermined time (t7), the amount of blown air will change intermittently, especially when the person to be air-conditioned is not moving and is in the same place. The temperature can be prevented and the comfort can be improved. Further, since the intermittent operation is performed after the optimum environment, the intermittent operation time can be shortened, the reliability of the fan drive means (12d) can be improved, and so-called on / off control can be performed, so that the configuration is simple. It is possible to surely control and reduce power consumption.

Further, since the intermittent control means (83) is reset by the movement of the person to be air-conditioned, it is possible to prevent the comfort from being impaired by returning to the normal control by the movement of the person to be air-conditioned.

Furthermore, when the person to be air-conditioned moves out of the air-conditioning area, the blow-out duct (16) is stopped at the rotation restricted position, so that the person to be air-conditioned receives the conditioned air immediately after returning from the rotation restricted position. In particular, when leaving the air-conditioned area for a short time, there is a high possibility of returning from the same location, so that the person to be air-conditioned can immediately receive the air-conditioned air, which further improves comfort.

Further, even if the air-conditioned person moves out of the air-conditioning area, the air-conditioned person is on standby, so that when the air-conditioned person returns, the air-conditioned air can be received as it is, and the comfort level is further improved.
While the operability can be improved, if the air-conditioned person does not return for a long time, the air-conditioning operation is stopped, so that it is possible to prevent waste of electric power, save energy, and when the air-conditioned person returns. Since it is automatically restored, the operability can be further improved. In addition, if the person to be air-conditioned does not return for a long time, the system will shut down, so that the air-conditioning operation will not be inadvertently restarted, and highly accurate air-conditioning control can be performed, and the outlet duct (16) Since it is stopped at the center of the, it is possible to promptly respond when the person to be air-conditioned returns.

Moreover, since the person to be air-conditioned is searched by the person searching means (75k), when the person to be air-conditioned enters the air-conditioned area, the person to be air-conditioned can automatically receive the air-conditioned air, At the same time as improving the comfort, it is possible to improve the operability. Furthermore, since the human detection sensor (72) scans by the automatic swing of the air outlet duct (16),
The scanning means dedicated to the human detection sensor (72) is not required, so that the structure can be simplified and the human detection sensor (72) is also provided.
The blowout duct (16) can be accurately directed to the person to be air-conditioned by the output signal of. Also, since the search is performed in the air conditioning operation state before the human detection sensor (72) outputs the person undetected signal, the person to be air-conditioned can immediately receive cool air when entering the air-conditioning area, which is more comfortable. Can be improved.

Further, since the blowout duct (16) can be set to three modes, it is possible to control the blowout duct (16) to be fixed, to automatically swing or to track the person in accordance with the work and the number of persons to be air-conditioned. It is possible to perform air conditioning that matches various conditions. At that time, since the air conditioning operation stops when there is no person to be air-conditioned, it is possible to prevent wasteful air conditioning, save energy, and, in addition, to bring down the system when the person to be air-conditioned does not exist for a long time. As a result, the air conditioning operation is not restarted carelessly, highly accurate air conditioning control can be performed, and the automatic air conditioning stop operation can be switched and set. Control can be performed.

Further, since the abnormality is detected by the interval of the position signal output from the limit switch (7), the abnormality of the duct drive means (2), that is, the guard motor (41) and the limit switch (7) can be accurately detected. Because you can know
Abnormality processing such as driving stop of the geared motor (41) can be appropriately performed, and reliability of the entire apparatus including duct control and the like can be improved. Further, the blowout duct (16)
Since it is possible to accurately control the head swing, it is possible to perform reliable air conditioning and improve comfort. Further, since the output signal of the limit switch (7) for detecting the position of the blowout duct (16) is used, it is not necessary to provide any abnormality detection sensor or the like, and the number of parts does not increase. Anomaly detection can be performed inexpensively with a simple structure. Further, since the abnormality is detected by the output time of the limit switch (7), it is possible to detect the abnormality in a short time, and it is possible to quickly perform the abnormality processing, and at the same time, when the duct is abnormal, Since the geared motor (41) of the drive means (2) is stopped, erroneous control can be prevented and seizure or the like of the geared motor (41) can be reliably prevented.

In the automatic swing mode of this embodiment (see FIG. 22), when the output stop timer (TMb) times out (steps ST208, ST213), the geared motor (41) is reversed again (step ST218 to ST211
Or from step ST221 to ST206), the second abnormality detection means (75d), if the output stop timer (TMb) has timed up once, from step ST217 to ST223, or step ST217
It is also possible to move directly from 220 to ST223 and perform the abnormality processing.

FIG. 26 shows an automatic swing control flow of the blowing duct (16) in the case where two limit switches (7a, 7b) are provided, where the first limit switch (7a)
And the mounting structure of the second limit switch (7b). In FIG. 4, FIG. 16 and FIG. 17, the first limit switch (7a) is a solid line corresponding to the limit switch (7) in the previous embodiment and the second limit switch (7a).
b) is indicated by a dashed line.

Both of the limit switches (7a, 7b) are composed of micro switches or the like, and are provided by utilizing a gap formed by the semicircular guide wall (36) and the flat right side wall (32). , Are attached to a supporting piece (39) continuously provided on the left side wall (32) so as to be vertically stacked. The probes (71a, 71b) of the limit switches (7a, 7b) are provided so as to come into contact with the outer peripheral surface of the rotary cylinder body (51a) below the stopper (61) at two positions, upper and lower.

On the other hand, on the outer peripheral surface of the rotary cylinder body (51a), as shown in FIGS. 8 and 9, a first protrusion (62) and a second protrusion (63) with which the probes (71a, 71b) abut. And are provided. The both protrusions (62, 63) are formed in the axial direction (vertical direction) of the rotary cylinder body (51a) as in the previous embodiment,
The first protrusion (62) is provided at the right end limit position of the automatic swing range of the blowout duct (16), and the second protrusion (63) is provided at the left end limit position. Further, the first protrusion (62) is the second
Longer than the protrusion (63), the first protrusion (62)
Is the probe (71a, 71a) for both limit switches (7a, 7b).
The second protrusion (63) is formed so that only the probe (71b) of the second limit switch (7b) comes into contact so that b) comes into contact with each other, and both of the limit switches (7a, 7b) are provided. A position signal is input to the CPU (75) so that the geared motor (41) is controlled in the forward and reverse directions.

Next, the automatic swing control (step ST410 in FIG. 20) of the blowout duct (16) when the two limit switches (7a, 7b) are provided will be described based on the control flow in FIG.

First, move from step ST3 in FIG. 20 to step ST410,
When the geared motor (41) is driven, the process proceeds to step ST301, it is determined whether or not the first limit switch (7a) has output a position signal, and the step is repeated until the position signal is output.
Moving to ST302, it is determined whether or not the second limit switch (7b) has output. Then, since both limit switches (7a, 7b) do not output the position signals during the rotation of the blowing duct (16), the process proceeds to step ST303, and the half rotation timer (TMa)
After stepping, the half rotation timer (TMa) is reached in step ST303.
Determines whether or not a preset half-turn time (ta) has elapsed, and returns to step ST301 until the time elapses. Since the half rotation time (ta) is set to the time required for the blowout duct (16) to perform half rotation as described above, the position signal is normally output within the half rotation time (ta).

Therefore, to explain from the case where the outlet duct (16) rotates counterclockwise and reaches the left end, only the second limit switch (7b) contacts the second protrusion (63) and outputs the position signal at the left end. From step ST301, ST302 to step ST305
, The rotation of the geared motor (41) is stopped and then reversed, the rotation of the outlet duct (16) is started to the right, the output stop timer (TMb) is stepped, and the second output is reached within the output stop time (tb). It is determined whether or not the output of the limit switch (7b) is stopped (steps ST306 to ST309).

This output stop time (tb) depends on the protrusion (63,6) as described above.
Since 3) is set to the time required to move away from each limit switch (7a, 7b), if the output stops within this time (tb), the output stop timer (TMb) and half rotation timer (TMa) will be activated. After resetting and performing normal processing, step ST408
And so on.

Then, when the outlet duct (16) reaches the right end within the half-turn time (ta), both limit switches (7a, 7b) output position signals, so the process proceeds from step ST301 and ST313 to step ST314, and the guard motor is moved. After the rotation of (41) is stopped, the rotation is reversed at the same time and the left rotation is started, and then the output stop timer (TMb) is incremented in the same manner as when the right rotation is started, and both limit switches ( When the output of 7a, 7b) is stopped, the output stop timer (TMb) and the half rotation timer (TMa) are reset and normal processing is performed (steps ST215, ~, ST319 and ST311, ST312).

By repeating this operation, the outlet duct (16) is pivoted to the left and right.

On the other hand, when both the limit switches (7a, 7b) do not output a position signal within the half rotation time (ta) during the swinging motion of the blowout duct (16), the process proceeds from step ST304 to step ST320. The abnormality processing operation of the limit switch (7a, 7b) or the geared motor (41) is started, the process proceeds to step ST321, and the geared motor (41) is stopped to perform the abnormality processing.

When the second limit switch (7b) does not output the position signal even though the first limit switch (7a) outputs the position signal, the steps ST313 to ST3 are performed.
22, the abnormality processing operation of the limit switches (7a, 7b) is started, and the process proceeds to step ST323, where the geared motor (4
1) will be stopped and abnormal processing will be performed. That is, in this embodiment, the left end of the outlet duct (16) is identified by the output of only the second limit switch (7b), and the right end is identified by the outputs of both limit switches (7a, 7b). Since there is no output from the limit switch (7a) only,
Only the output of the limit switch (7a) determines that one or both of the limit switches (7a, 7b) is abnormal.

Furthermore, if the output of the limit switch (7a, 7b) does not stop within the output stop time (tb) at the right end or the left end of the outlet duct (16), the process proceeds from step ST308 or ST317 to step ST324, and the limit switch ( 7a, 7b) or the abnormality processing operation of the geared motor (41) is started, and step ST
Moving to 325, the geared motor (41) is stopped and abnormal processing is performed.

As a result, it is possible to detect an abnormality in the limit switch (7a, 7b) or the guard motor (41) by using the output signal of each of the limit switches (7a, 7b). The reliability of can be improved.

Then, in steps ST301 to ST319, the automatic swinging means (75
c) is configured, while steps ST304, ST320 and ST321
Then, the first abnormality detecting means (75f) performs steps ST308, ST317, S
The second abnormality detecting means (75 g) is composed of T324 and ST325, respectively.

In addition, each of the embodiments is a movable spot air conditioner (1).
However, the present invention may be applied to a duct type spot air conditioner.

Further, although one human detection sensor (72) is provided to detect human movement in addition to human detection, a plurality of human detection sensors (72) are provided in the air conditioner body (12) and the like, and the air conditioning area is divided into a plurality of areas. The air-conditioning target person may be detected by monitoring for each section. By providing a plurality of sensors in this manner, the air-conditioning target person can be quickly detected. Therefore, the blowing duct (16)
Can be moved instantly.

Further, the wind direction control means (75a) is provided in the outlet duct (16).
May be provided so as to be rotatable in the three-dimensional direction, and the blowout duct (16) may be rotated in the three-dimensional direction in accordance with the movement of the person to be air-conditioned, whereby a wide range of person tracking can be performed. Therefore, the comfort can be improved.

The intermittent control means (83) switches the fan motor (12d) to a high rotation drive and a low rotation drive so that the rotation speed of the fan (12f) intermittently changes between a high rotation speed and a low rotation speed. It may be controlled, or so-called strong / weak driving may be performed. According to this, the comfort at the time of weak air blowing can be accurately ensured.

Further, two or more blowout ducts (16) may be provided, and the blowout duct (16) may be pivotally supported on the housing (15) with a pin or the like to be rotated.

Further, as the human detection sensor (72), an ultrasonic sensor or a pyroelectric sensor may be used.

[Brief description of drawings]

1 (a), 1 (b), 1 (c) and 1 (d) are block diagrams showing the configuration of the present invention. 2 to 26 show an embodiment of the present invention, FIG. 2 is a cross sectional front view of a spot air conditioner, and FIG. 3 is a longitudinal side view thereof. 4 is an enlarged vertical sectional view of the duct driving means, FIG. 5 is a sectional view taken along the line I--I in FIG. 4, and FIG. 6 is FIG.
Sectional view taken along line V, FIG. 7 is a sectional view taken along line II-II of FIG. 4, and FIG. 8 is a sectional view taken along line III-III of FIG.
The drawing is a sectional view taken along line IV-IV in FIG. FIG. 10 is a sectional view of a human detection sensor, FIG. 11 is an explanatory view showing a positional relationship between a light emitting element and a light receiving element, FIG. 12 is a propagation state diagram of infrared rays with respect to a specular reflector of the human detection sensor, and FIG. Is a diagram of the propagation state of infrared rays to the mirror reflector with the same inclination,
FIG. 14 is an infrared ray propagation state diagram for the same clothing, and FIG. 15 is an infrared ray propagation state diagram for the moving clothing. FIG. 16 is a control block diagram of the spot air conditioner, and FIG. 17 is a detailed circuit diagram of the same. FIG. 18 is a control flow chart showing signal processing of the human detection sensor, and FIG. 19 is an output timing chart of the signal. Figure 20, Figure 21, Figure 22, Figure 23, Figure 24,
25 and 26 are control flow charts showing the air conditioning process of the spot air conditioner. (1) ... spot air conditioner, (2) ... duct drive means,
(4) ... Drive mechanism, (5) ... Rotation mechanism, (7,7a, 7b) ...
Limit switch, (8) ... Air conditioning control means, (12) ... Air conditioner body, (12a) ... Compressor, (12e, 12f) ... Fan,
(12d) ... Fan motor, (16) ... Blowout duct, (41)
… Gard motor, (72)… Person detection sensor, (75)… CP
U, (75a) ... wind direction control means, (75b) ... fixed control means,
(75c) ... Automatic swinging means, (75d) ... Air conditioning stopping means, (75
e) ... system stopping means, (75f) ... first abnormality detecting means,
(75g) ... Second anomaly detection means, (75h) ... Person detection determination means, (75i) ... Person movement determination means, (75j) ... Short-term standby means, (75k) ... People search means, (75l) ... Long-term standby means,
(75m) ... drive delay means, (75n) ... duct stop means,
(76) ... Mode switch, (83) ... Intermittent control circuit,
(84)… Energy saving switch, (H1, H2)… Light emitting element,
(J) ... Light receiving element.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ken Takigawa 1304 Kanaoka-machi, Sakai City, Osaka Prefecture Daikin Industry Co., Ltd. Kanaoka Plant, Sakai Manufacturing Co., Ltd. (56) Reference JP-A-64-33455 (JP, A) 1-239334 (JP, A)

Claims (36)

[Claims] 1. An air conditioner body (12) for sucking indoor air to generate conditioned air, and a blow duct (16) rotatably attached to the air conditioner body (12) for blowing out the conditioned air. A duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner main body (12) to change the blowout direction; and detecting a person to be air-conditioned in an air-conditioned area to be air-conditioned by the air-conditioned air. The human detection means (72) and the duct drive means (2) so that the blowing duct (16) faces the person to be conditioned in response to the human detection signal output by the human detection means (72). Wind direction control means to control (75
a) and the human detection means (72) is a human detection device that determines and detects the presence of a person to be air-conditioned in a predetermined detection area. ±
θH, ± θH), and each light emission directivity angle (±
θH, ± θH) A pair of light emitting means (H1, H2) which are arranged with a predetermined opening angle so as not to overlap each other and alternately emit infrared rays, and both light emitting means (H1, H2) in the above detection area. The light emission directivity angle (± θH, ±
θH) Predetermined light receiving directivity angle (± θJ) that partially overlaps the region
And a single light receiving means (J) for receiving the reflected light of the infrared light emitted from the light emitting means (H1, H2), and for receiving the output of the light receiving means (J), each light emitting means (H1, H2)
2) A spot detection air conditioner characterized by being provided with a human detection discrimination means (75h) that outputs a human detection signal when the reflection amount of infrared light emitted from 2) is both above a set value. 2. An air conditioner body (12) for sucking indoor air to generate conditioned air, and a blow duct (16) rotatably attached to the air conditioner body (12) for blowing out the conditioned air. A duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner main body (12) to change the blowout direction; and detecting a person to be air-conditioned in an air-conditioned area to be air-conditioned by the air-conditioned air. The human detection means (72) and the duct drive means (2) so that the blowing duct (16) faces the person to be conditioned in response to the human detection signal output by the human detection means (72). Wind direction control means to control (75
a) and the human detection means (72) is a human detection device that determines and detects the presence of a person to be air-conditioned in a predetermined detection area. ±
θH, ± θH) and each transmission direction angle (±
θH, ± θH) A pair of transmission means (H1, H2) which are arranged with a predetermined opening angle so as not to overlap each other and alternately emit ultrasonic waves, and both transmission means (H1, H2) in the detection area. It is arranged between the transmission means (H1, H2) and the transmission direction angle (± θH, ±
θH) Predetermined reception directivity angle (± θJ) that partially overlaps the (H) region
And a single receiving means (J) for receiving the reflected waves of the ultrasonic waves emitted from the transmitting means (H1, H2), and for receiving the output of the receiving means (J), each of the transmitting means (H1, H1) H
2) A spot detection air conditioner characterized by being provided with a human detection discrimination means (75h) that outputs a human detection signal when the amount of reflection of the ultrasonic waves emitted from both is above a set value. 3. An air conditioner body (12) for sucking indoor air to generate conditioned air, an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner body (12), and the air conditioner body (12). Is rotatably attached to
A blowout duct (16) for blowing out the conditioned air, a duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner body (12) to change the blowing direction, and the conditioned air A person who detects a person to be air-conditioned in an air-conditioning area to be air-conditioned and outputs a person detection signal when the person is detected and a person undetected signal when the person is not detected, and outputs a movement signal by identifying the movement of the person being air-conditioned. Detection means (72)
And in response to the person detection signal and the movement signal of the person detecting means (72), the blowout duct (16) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned. While the wind direction control means (75a) for controlling the duct drive means (2) is provided, the person detection means (72) is a person detection device that determines and detects the presence of an air-conditioned person in a predetermined detection area. Then, in each of the detection areas, a predetermined light emission directivity angle (±
θH, ± θH), and each light emission directivity angle (±
θH, ± θH) A pair of light emitting means (H1, H2), which are arranged with a predetermined opening angle so as not to overlap each other and alternately emit infrared rays, and both light emitting means (H1, H2) in the above detection area. The light emission directivity angle (± θH, ±
θH) Predetermined light receiving directivity angle (± θJ) that partially overlaps the region
And a single light receiving means (J) for receiving the reflected light of the infrared light emitted from the light emitting means (H1, H2), and for receiving the output of the light receiving means (J), each light emitting means (H1, H2)
2) The human detection signal is output when the reflection amount of the infrared light emitted from both is equal to or more than the set value, and either when the reflection amount of the infrared light emitted from each of the light emitting means (H1, H2) is less than or equal to the set value. When the value is less than or equal to the set value, a person detection determination means (75h) that outputs a person undetection signal, and after receiving the person detection signal from the person detection determination means (75h),
When only the reflection amount of the infrared light emitted from the one light emitting means (H1 or H2) becomes lower than the set value, the person to be air-conditioned receives the directivity angle (± θ) of the other light emitting means (H2 or H1).
H) A spot movement air conditioner, which comprises: a person movement determining means (75i) for determining a movement in the direction of the area and outputting a movement signal. 4. An air conditioner body (12) for sucking indoor air to generate conditioned air, an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner body (12), and the air conditioner body (12). Is rotatably attached to
A blowout duct (16) for blowing out the conditioned air, a duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner body (12) to change the blowing direction, and the conditioned air A person who detects a person to be air-conditioned in an air-conditioning area to be air-conditioned and outputs a person detection signal when the person is detected and a person undetected signal when the person is not detected, and outputs a movement signal by identifying the movement of the person being air-conditioned. Detection means (72)
And in response to the person detection signal and the movement signal of the person detecting means (72), the blowout duct (16) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned. While the wind direction control means (75a) for controlling the duct drive means (2) is provided, the person detection means (72) is a person detection device that determines and detects the presence of an air-conditioned person in a predetermined detection area. A predetermined transmission directivity angle (±
θH, ± θH) and each transmission direction angle (±
θH, ± θH) A pair of transmission means (H1, H2) which are arranged with a predetermined opening angle so as not to overlap each other and alternately emit ultrasonic waves, and both transmission means (H1, H2) in the detection area. It is arranged between the transmission means (H1, H2) and the transmission direction angle (± θH, ±
θH) Predetermined reception directivity angle (± θJ) that partially overlaps the (H) region
And a single receiving means (J) for receiving the reflected waves of the ultrasonic waves emitted from the transmitting means (H1, H2), and for receiving the output of the receiving means (J), each of the transmitting means (H1, H1) H
2) The human detection signal is output when the reflection amount of the ultrasonic waves emitted from both are above the set value, and when the reflection amount of the ultrasonic waves emitted from each of the transmitting means (H1, H2) is below the set value. When one of the person detection determination means (75h) outputs a person non-detection signal when the other is less than the set value, and after receiving the person detection signal from the person detection determination means (75h),
When only the reflection amount of the ultrasonic wave emitted from the one transmission means (H1 or H2) becomes lower than the set value, the person to be air-conditioned receives the directivity angle (± θ of the other transmission means (H2 or H1).
H) A spot movement air conditioner, which comprises: a person movement determining means (75i) for determining a movement in the direction of the area and outputting a movement signal. 5. The spot air conditioner according to any one of claims (1) to (4), wherein the person detecting means (72) scans the inside of the air conditioning area and detects one person. Spot air conditioner, which is composed of a detection sensor. 6. The spot air conditioner according to any one of claims (1) to (4), wherein the human detection means (72) divides the air conditioning area into a plurality of areas, and monitors each of the areas. A spot air conditioner characterized by being composed of multiple people detection sensors that detect the person to be air-conditioned. 7. The spot air conditioner according to any one of claims (1) to (4), characterized in that the person detecting means (72) is provided at the tip of the outlet duct (16). Spot air conditioner. 8. The spot air conditioner according to any one of claims (1) to (4), wherein the wind direction control means (75a) is within a preset angle centered on the attachment point of the outlet duct (16). A spot air conditioner characterized in that the duct driving means (2) is controlled so that the blowout duct (16) moves toward the air-conditioned person in the air-conditioning area. 9. The spot air conditioner according to any one of claims (1) to (4), wherein the wind direction control means (75a) has a three-dimensional direction in which the blowout duct (16) is directed toward the air-conditioned person. A spot air conditioner characterized in that it is configured to control the duct drive means (2) so as to move to. 10. An air conditioner body (12) for sucking indoor air to generate conditioned air, an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner body (12), and the air conditioner body (12). Is rotatably attached to
A blowout duct (16) for blowing out the conditioned air, a duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner body (12) to change the blowing direction, and the conditioned air A person who detects a person to be air-conditioned in an air-conditioning area to be air-conditioned and outputs a person detection signal when the person is detected and a person undetected signal when the person is not detected, and outputs a movement signal by identifying the movement of the person being air-conditioned. Detection means (72)
And in response to the person detection signal and the movement signal of the person detecting means (72), the blowout duct (16) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned. When the movement signals of the wind direction control means (75a) for controlling the duct drive means (2) and the human detection means (72) are received, after a predetermined time (t1) corresponding to the time required for a slight movement of the person to be air-conditioned has elapsed. And a drive delay means (75m) for outputting the movement signal to the wind direction control means (75a). 11. The spot air conditioner according to claim (3) or (4) above, when a movement signal of a human detection means (72) is received, a predetermined time (t1) corresponding to the time required for a slight movement of the person to be air-conditioned. Spot air conditioner characterized by comprising a drive delay means (75m) for outputting the movement signal to the wind direction control means (75a) after the passage of. 12. An air conditioner body (12) for sucking indoor air to generate conditioned air, an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner body (12), and the air conditioner body (12). Is rotatably attached to
A blowout duct (16) for blowing out the conditioned air, a duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner body (12) to change the blowing direction, and the conditioned air A person who detects a person to be air-conditioned in an air-conditioning area to be air-conditioned and outputs a person detection signal when the person is detected and a person undetected signal when the person is not detected, and outputs a movement signal by identifying the movement of the person being air-conditioned. Detection means (72)
And in response to the person detection signal and the movement signal of the person detecting means (72), the blowout duct (16) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned. Wind direction control means (75a) for controlling the duct drive means (2), counting means (TM7) for counting a predetermined time (t7) by the output of the human detection signal of the human detection means (72), and the coefficient means ( If the human detection means (72) continuously outputs the human detection signal until the TM7) counts a predetermined time (t7), a fan (12f) that blows out conditioned air after the predetermined time (t7) has elapsed. And an intermittent control means (83) for controlling the fan drive means (12d) so that the rotation speed of the fan changes intermittently. 13. The spot air conditioner according to claim 3 or 4, wherein a counting means (TM7) for counting a predetermined time (t7) by the output of the human detection signal of the human detection means (72), If the human detection means (72) continuously outputs the human detection signal until the coefficient means (TM7) counts the predetermined time (t7), a fan that blows out conditioned air after the predetermined time (t7) has elapsed. A spot air conditioner comprising: an intermittent control means (83) for controlling the fan drive means (12d) so that the rotation speed of the (12f) intermittently changes. 14. The method according to any one of claims 12 to 13 above.
The spot air conditioner described above is characterized in that the intermittent control means (83) is configured to be reset by a movement signal of the person detection means (72) and a person non-detection signal. 15. The method according to any one of claims (12) to (14).
The spot air conditioner described above is characterized in that the intermittent control means (83) is configured to intermittently control the electric power supplied to the fan drive means (12d). 16. The method according to any one of claims (12) to (14).
In the described spot air conditioner, the intermittent control means (83) drives the fan drive means (12d) to a high rotation speed and a low rotation speed so that the rotation speed of the fan (12f) intermittently changes between a high rotation speed and a low rotation speed. A spot air conditioner characterized by being configured to be controlled to rotate. 17. The spot air conditioner according to claim 3 or 4, further comprising position detecting means (7) for detecting a rotation limit position of the blowout duct (16) corresponding to the end of the air conditioning area. When the person to be air-conditioned moves out of the air-conditioning area in response to the position signal output from the position detecting means (7) and the movement signal from the person detecting means (72), the blow-out duct (16) is placed in a rotation limiting position. And a duct stop means (75n) for controlling the duct drive means (2) so as to stop the spot air conditioner. 18. An air conditioner body (12) for sucking indoor air to generate conditioned air, an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner body (12), and the air conditioner body (12). Is rotatably attached to
A blowout duct (16) for blowing out the conditioned air, a duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner body (12) to change the blowing direction, and the conditioned air A person who detects a person to be air-conditioned in an air-conditioning area to be air-conditioned and outputs a person detection signal when the person is detected and outputs a person undetected signal when the person is not detected, and outputs a movement signal by identifying the movement of the person being air-conditioned. In response to the person detection signal and the movement signal of the person detecting means (72), the blow-out duct (16) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned. The wind direction control means (75a) for controlling the duct drive means (2) so as to move, and the person non-detection signal in response to the person non-detection signal output by the person detection means (72) after the person detection signal is output. A predetermined time (t2) has elapsed in the air conditioning operation state before signal output Short standby means for controlling the air conditioning control means (8) so as to wait until (75j)
Spot air conditioner characterized by having and. 19. The spot air conditioner according to claim 3 or 4, wherein the human detection means (72) outputs the human non-detection signal in response to the human non-detection signal output after the human detection signal is output. A spot air conditioner characterized by comprising short-term standby means (75j) for controlling the air conditioning control means (8) so as to wait until a predetermined time (t2) has elapsed in the previous air conditioning operation state. 20. The spot air conditioner according to claim 18 or 19, wherein the human detection means (72) remains undetected and is a short-term standby means (75j).
When the waiting time (t2) set in step 3 has elapsed, until the predetermined time (t3) elapses after the air conditioning operation and the duct movement operation are stopped in a state where the person detection signal of the person detection means (72) can automatically return. Long-term standby means (75l) for controlling the air-conditioning control means (8) and the duct drive means (2) so that they will be on standby
Spot air conditioner characterized by being equipped with. 21. The spot air conditioner according to claim 20, wherein the long-term standby means (75l) has a preset standby time (t3) when the human detection means (72) has not detected the person. A spot air conditioner characterized by being configured so that the system of the air conditioning control means (8) is brought down to a state where the air conditioning operation cannot be automatically restored. 22. The spot air conditioner according to claim 20, wherein the long-term standby means (75l) controls the duct drive means (2) so that the blowout duct (16) stops at the center of the air conditioning area. Spot air conditioner characterized by being configured to stand by. 23. The spot air conditioner according to claim 3 or 4, wherein the human detecting means (72) is scanned within the air-conditioning area in response to the human undetected signal of the human detecting means (72). Spot air conditioners are characterized by having a person search means (75k) that searches for air-conditioned persons. 24. The spot air conditioner according to claim 23, wherein the person searching means (75k) controls the duct driving means (2) so as to automatically swing the blowout duct (16) within the air conditioning area. A spot air conditioner characterized in that a person detecting means (72) attached to the tip of the blowout duct (16) is configured to scan the inside of the air-conditioning area. 25. The spot air conditioner according to claim 23, wherein the person searching means (75k) searches for a person to be air-conditioned in an air conditioning operating state before the person undetected signal is output from the person detecting means (72). Spot air conditioner characterized by being configured into. 26. The spot air conditioner according to claim 3 or 4, wherein mode control means for manually switching the control mode of the outlet duct (16) between a fixed mode, an automatic swing mode and a person tracking mode. (76), position detecting means (7) for detecting the both-end rotation limiting position of the blowout duct (16) and outputting a position signal at each of the rotation limiting positions, and the fixed mode by the mode switching means (76). When set to 1, the automatic swing mode is controlled by the fixed control means (75b) for controlling the duct drive means (2) so as to hold the blowout duct (16) in a fixed state, and the mode switching means (76). When set to 1, the automatic control for controlling the duct drive means (2) so that the blowout duct (16) is reversed by the position signal of the position detection means (7) and the blowout duct (16) reciprocally rotates. Swing The wind direction control means (75a) is configured to control the duct drive means (2) for human tracking when the wind direction control means (75a) is set to the human tracking mode by the mode switching means (76). Spot air conditioner characterized by 27. An air conditioner body (12) for sucking indoor air to generate conditioned air, an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner body (12), and the air conditioner body (12). Is rotatably attached to
A blowout duct (16) for blowing out the conditioned air, a duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner body (12) to change the blowing direction, and the conditioned air A person who detects a person to be air-conditioned in an air-conditioning area to be air-conditioned and outputs a person detection signal when the person is detected and a person undetected signal when the person is not detected, and outputs a movement signal by identifying the movement of the person being air-conditioned. Detection means (72)
A mode switching means (76) for manually switching the control mode of the blowout duct (16) to a fixed mode, an automatic swing mode, and a human tracking mode; and a both end rotation limit position of the blowout duct (16). When the fixed mode is set by the position detecting means (7) that detects and outputs a position signal at each of the rotation limiting positions and the mode switching means (76), the blowout duct (16) is held in a fixed state. When the automatic swing mode is set by the fixed control means (75b) for controlling the duct drive means (2) and the mode switching means (76), the position signal of the position detection means (7) causes An automatic swinging means (75c) for controlling the duct drive means (2) so that the blowout duct (16) is turned over so that the blowout duct (16) reciprocally rotates, and a person tracking is performed by the mode switching means (76). Set to mode Then, in response to the person detection signal and the movement signal of the person detecting means (72), the blowing duct (16) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned. Wind direction control means (75) for controlling the duct drive means (2)
a) and, when the fixed mode signal and automatic swing mode signal of the mode switching means (76) are output, if the preset air conditioning operating time (t5) elapses with the human detection means (72) undetected,
An air-conditioning stop means (75d) for controlling the air-conditioning control means (8) so as to stop the air-conditioning operation in a state where the human detection signal from the human detection means (72) can be automatically restored. Spot air conditioner. 28. The spot air conditioner according to claim 26, wherein when the fixed mode signal and the automatic swing mode signal of the mode switching means (76) are output, the human detecting means (72) is preset with no human being detected. When the air-conditioning operation time (t5) is elapsed, the air-conditioning stop means (8) for controlling the air-conditioning control means (8) to stop the air-conditioning operation in a state where the human detection signal of the human detection means (72) can automatically recover. Spot air conditioner characterized by having 75d). 29. The spot air conditioner according to claim 27 or 28, wherein the person detecting means (7) is provided after the stop signal of the air conditioning stopping means (75d) is output.
2) is a preset air conditioning stop time (t
When 6) has passed, the spot air conditioner is equipped with a system stop means (75e) that controls the air conditioning control means (8) so that the system goes down to a state where the air conditioning operation cannot be automatically restored. 30. Any one of the above items (27) to (29)
The spot air conditioner described above is provided with an automatic stop switching means (84) for on / off controlling the air conditioning stop means (75d). 31. An air conditioner body (12) for sucking indoor air to generate conditioned air, an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner body (12), and the air conditioner body (12). Is rotatably attached to
A blowout duct (16) for blowing out the conditioned air, a duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner body (12) to change the blowing direction, and the conditioned air A person who detects a person to be air-conditioned in an air-conditioning area to be air-conditioned and outputs a person detection signal when the person is detected and a person undetected signal when the person is not detected, and outputs a movement signal by identifying the movement of the person being air-conditioned. Detection means (72)
And in response to the person detection signal and the movement signal of the person detecting means (72), the blowout duct (16) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned. Wind direction control means (75a) for controlling the duct drive means (2), and position detection means (7) for detecting both-end rotation limiting positions of the blowout duct (16) and outputting a position signal at each rotation limiting position. An automatic swinging means (75c) for controlling the duct driving means (2) so that the blowout duct (16) reciprocally rotates by a position signal of the position detecting means (7); and the blowout duct (16). The control mode is switched to at least the automatic swing mode and the human tracking mode by manual operation, and the automatic swing means (75c) is operated in the automatic swing mode, and the wind direction control means (75a) is operated in the human tracking mode. Means (76) and automatic swing mode A half rotation time (ta) required for the blow duct (16) to rotate from one rotation limiting position to the other rotation limiting position is set in advance, and a position signal output of the position detecting means (7). Is stopped, the half rotation counting means (TMa) for counting the half rotation time of the blowout duct (16) and the position until the half rotation counting means (TMa) counts a predetermined half rotation time (ta). A spot air conditioner, comprising: a first abnormality detecting means (75f) for performing abnormality processing when the detecting means (7) does not output the next position signal. 32. The spot air conditioner according to claim 3 or 4, wherein position detecting means for detecting both-end rotation limiting positions of the blowing duct (16) and outputting a position signal at each of the rotation limiting positions. (7), an automatic swinging means (75c) for controlling the duct driving means (2) so that the blowout duct (16) is reciprocally rotated by a position signal of the position detecting means (7), and the blowout duct The control mode of (16) is switched to at least the automatic swing mode and the human tracking mode by manual operation, and the automatic swing means (75c) is operated in the automatic swing mode, and the wind direction control means (75a) is operated in the human tracking mode. The half-rotation time (ta) required for rotating the mode switching means (76) and the blowing duct (16) from one rotation limiting position to the other rotation limiting position in the automatic swing mode is preset. And position detection means When the position signal output of (7) is stopped, the half rotation counting means (TMa) for counting the half rotation time of the blowout duct (16) and the half rotation counting means (TMa) have a predetermined half rotation time (ta). The first air conditioner detecting means (75f) for performing anomaly processing when the position detecting means (7) does not output the next position signal before counting. 33. An air conditioner body (12) for sucking indoor air to generate conditioned air, an air conditioning control means (8) for controlling an air conditioning operation of the air conditioner body (12), and the air conditioner body (12). Is rotatably attached to
A blowout duct (16) for blowing out the conditioned air, a duct drive means (2) for rotating the blowout duct (16) with respect to the air conditioner body (12) to change the blowing direction, and the conditioned air A person who detects a person to be air-conditioned in an air-conditioning area to be air-conditioned and outputs a person detection signal when the person is detected and a person undetected signal when the person is not detected, and outputs a movement signal by identifying the movement of the person Detection means (72)
And in response to the person detection signal and the movement signal of the person detecting means (72), the blowout duct (16) follows the movement of the person to be air-conditioned and moves toward the person to be air-conditioned. Wind direction control means (75a) for controlling the duct drive means (2), and position detection means (7) for detecting both-end rotation limiting positions of the blowout duct (16) and outputting a position signal at each rotation limiting position. An automatic swinging means (75c) for controlling the duct driving means (2) so that the blowout duct (16) reciprocally rotates by a position signal of the position detecting means (7); and the blowout duct (16). The control mode is switched to at least the automatic swing mode and the human tracking mode by manual operation, and the automatic swing means (75c) is operated in the automatic swing mode, and the wind direction control means (75a) is operated in the human tracking mode. Means (76) and automatic swing mode The output stop time (tb) required until the position signal output is stopped by the rotation of the blowout duct (16) after the position signal of the position detecting means (7) is output is set in advance. When receiving the position signal of the means (7), output stop counting means (TMb) for counting the output time of the position signal, and at least the output stop counting means (TMb) while the position detecting means (7) outputs the position signal. TMb) is equipped with a second abnormality detection means (75g) for performing abnormality processing when a predetermined output stop time (tb) is counted, a spot air conditioner. 34. The spot air conditioner according to claim 3 or 4, wherein position detecting means for detecting a rotation limit position at both ends of the blowing duct (16) and outputting a position signal at each rotation limit position. (7), an automatic swinging means (75c) for controlling the duct driving means (2) so that the blowout duct (16) is reciprocally rotated by a position signal of the position detecting means (7), and the blowout duct The control mode of (16) is switched to at least the automatic swing mode and the human tracking mode by manual operation, and the automatic swing means (75c) is operated in the automatic swing mode, and the wind direction control means (75a) is operated in the human tracking mode. Output mode stop means required to stop the output of the position signal by the mode switching means (76) and the position detection means (7) by the rotation of the blowout duct (16) after the position signal of the position detecting means (7) is output. (Tb) Is preset, and when the position signal of the position detecting means (7) is received, the output stop counting means (TMb) for counting the output time of the position signal and the position detecting means (7) output the position signal. A spot air conditioner, comprising at least a second abnormality detecting means (75g) for performing abnormality processing when at least the output stop counting means (TMb) counts a predetermined output stop time (tb) while outputting. 35. The spot air conditioner according to claim 31 or 32, wherein after the position signal of the position detecting means (7) is output, the position signal output is stopped by the rotation of the blowout duct (16). The output stop time (tb) required to do is set in advance,
Output stop counting means (TMb) for counting the output time of the position signal when receiving the position signal of the position detecting means (7)
And second abnormality detecting means (75g) for performing abnormality processing when at least the output stop counting means (TMb) counts a predetermined output stop time (tb) while the position detecting means (7) outputs the position signal. Spot air conditioner characterized by being equipped with. 36. Any one of claims (31) to (35)
The spot air conditioner described above is characterized in that the abnormality detecting means (75f, 75g) is configured to stop the drive of the duct driving means (2).