JPH02306047A - Spot air conditioner - Google Patents

Abstract

PURPOSE:To equalize the body-sensed temperature among subject individuals for air conditioning who line up sideways by controlling the rotational speed of fan motor such that it may be fastest at both ends of the sweep angle of diffuser duct and slowest at the center. CONSTITUTION:The normal and reversal rotation of the duct motor 41 is controlled by the duct actuating circuit 85 based on the output signal from the CPU 82, While the fan motor 12d and the compressor motor 12h are controlled their going on and off by the fan actuating circuit 86 and the compressor actuating circuit 87 based on the output signal from the CPU 82. The CPU 82 has a rotational speed setting means 88 which, upon receiving the angular signal from the photointerruptor 74, sets the rotational speed of the fan motor 12d for condensing and evaporating fans 2e, 12f. Upon receiving the output from said rotational speed setting means 88, the fan actuating circuit 86 modulates the speed of the fan motor 12d, and the speed of the fan motor 12d is modulated according to the sweep angle of the diffuser duct 16. The rotational speed setting means 88 causes the rotational speed such that it may be fastest at both ends of the sweep angle of the diffuser duct 16 and the slowest at the center.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a spot air conditioner that performs local cooling, etc.
In particular, the invention relates to a spot air conditioner that controls the wind direction by driving and controlling a blow-off duct.

(Prior Art) In general, spot air conditioners for local cooling are being installed in various factories to improve the working environment. Such a spot air conditioner has a refrigerant circuit equipped with a compressor, a condenser, an evaporator, and an expansion mechanism housed in a housing mounted on a wagon, as well as a condensing fan and an evaporating fan. The cold air that has undergone heat exchange in the evaporator is blown out toward the operator from a blow-off duct connected to the upper part of the housing, thereby providing local cooling. Further, the blow-off duct is connected to a swing cylinder, which is pivotally supported by the housing by a diametrical pin, and is connected to a motor via a link mechanism. Then, drive the motor to swing the blowout duct,
We are trying to ensure widespread cooling.

(Problem to be Solved by the Invention) However, in a spot air conditioner in which a motor is driven to swing or rotate the outlet duct so that the outlet duct swings, the air conditioner is used to When cooling a room, for example, if the people to be air-conditioned are lined up in a row, there will be a considerable difference in perceived temperature between the person in the center and the people on either side, but this point is not taken into consideration at all. Therefore, when automatically swinging, a certain level of comfort cannot be obtained regardless of the swing angle position (swing angle position, rotation angle position) of the blow-off duct.

In addition, the longer the distance between the person being air-conditioned and the air conditioner itself, the less air volume reaches the person being air-conditioned. I can't get sex.

In this case, for example, as described in Japanese Unexamined Patent Publication No. 63-143443, a person detection means and a distance sensor are used together, and the rotation speed of the fan motor is changed according to the distance between the air conditioner main body and the person to be air-conditioned. However, in this case, a 711 distance sensor would be required in addition to the human detection means, which would increase costs.

The present invention has been made in view of the above points, and is a spot air conditioner that can provide substantially constant comfort at a low cost, regardless of the distance between the person to be air-conditioned and the air conditioner main body, or the rotational angle position of the outlet duct. The purpose is to provide

(Means for Solving the Problems) In order to ensure a substantially constant level of comfort regardless of the rotation angle of the blow-off duct (16) or the distance between the person to be air-conditioned and the air conditioner main body (12), the present invention provides: An evaporation fan (12e) controls the volume of air conditioned air blown out from the blowout duct (16).
) to change the rotation speed of the fan motor (12d) that rotates the fan motor (12d).

The invention of claim (1) provides a spot air conditioner (1) in which a blow-off duct (16) for blowing out conditioned air is rotatably mounted by a duct driving means (2), as shown in FIG.
, a position detection means (74) for detecting the swing angle of the blow-off duct (16); and the position detection means (74).
rotation speed setting means (8) for setting the rotation speed of the fan motor (12d) of the evaporation fan (12e) in response to a signal from
8), and fan drive means (86) for changing the rotation speed of the fan motor (12d) in response to the output of the rotation speed setting means (88).

In the invention of claim (2), the rotation speed setting means (88) has the highest rotation speed at both ends of the swing of the blow-off duct (16),
Set so that the number of rotations is the smallest when the swing is in the center.

The invention according to claim (3) includes an infrared sensor for detecting a person (9), and in response to a signal from the infrared sensor for detecting a person (9), the blowing duct (16) is actuated by the duct driving means (2). In the spot air conditioner (1) that controls the wind direction by controlling the drive, the fan motor (12
d) a rotation speed setting means (88) for setting the rotation speed; and a fan motor (1) receiving the output of the rotation speed setting means (88).
2d) is characterized by comprising a fan drive means (86) for changing the rotation speed.

(Function) According to the invention of claim (1), the rotation speed setting means (88) sets the rotation speed of the fan motor (12d) according to the swing angle of the blow-off duct (16), and sets the rotation speed of the fan motor (12d). The drive means (86) receives the fan motor (12f) of the fan (12f).
12d) change the rotation speed. Furthermore, according to the invention of claim (a), the rotation speed setting means (88) sets the rotation speed of the fan motor (12d) to be the highest at both ends of the swing of the blow-off duct (16), and the rotation speed of the fan motor (12d) is the highest when the swing of the blow-off duct (16) is at the center of swing. 12d
) has the slowest rotation speed.

According to the invention of claim (3), an infrared sensor for human detection (
Based on the signal from 19), the rotation speed setting means (88) sets the rotation speed of the fan motor (12d), and the fan driving means (86) receives this and changes the rotation speed of the fan motor (12d). .

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

In Figures 2 and 3 showing the overall configuration of a spot air conditioner, (1) is a spot air conditioner, which is installed in various factories and performs local cooling by blowing cold air to workers and other people subject to air conditioning. It is.

The spot air conditioner (1) is configured to be movable by mounting an air conditioner body (12) on a wagon (11) having casters (11a), and the wagon (11) has an upper part (11b) and a lower part. It is formed in two stages with the section (11c). The air conditioner body (12) is connected to a compressor (12).
a), a refrigerant circuit in which a condenser (12b), an expansion mechanism (not shown), and an evaporator (12c) are connected by refrigerant piping (
(not shown), the compressor (12a) is installed in the lower part (11c) of the wagon (11), and the compressor (12a) and other parts are installed in the lower part (11c) of the wagon (11). A drain tank (13), an electric box (14), etc. are housed and installed in the housing (15) of the air conditioner main body (12).

The upper part (1l b) of the wagon (11) is provided with the condenser (12b) and evaporator (12c) on both sides of the housing (15), and one fan motor in the center. A condensing fan (12e) and an evaporating fan (12f) are connected and housed in (12d). Further, a condensing side exhaust port (15b) is provided on the top plate (15a) of the housing (15), and a blow-off duct (16) is rotatably attached via a duct driving means (2). The blow-off duct (16) is formed of a flexible pipe whose wind direction can be freely changed, and the outlet (12g) of the evaporation fan (12f) is connected to the housing (16).
15) through the top plate (15a). The indoor air that flows in from the negative side of the housing (15) due to the drive of the fans (12e) and (12f) exchanges heat with the condenser (12b) and becomes warm air, which is then flowed upward from the exhaust port (15b). While the housing (1
5) Indoor air flowing in from the other side is sent to the evaporator (12c)
It is configured to exchange heat with the cold air and turn it into cold air, which is blown out from the blow-off duct (16) toward the person to be air-conditioned.

In addition, (17) is a drain pan provided at the lower part of the evaporator (12c), and is communicated with the drain tank (13) to transfer the drain from the evaporator (12c) to the drain tank (17).
13).

As shown in FIGS. 4 and 5, the duct driving means (2) includes a driving mechanism (4) housed in a casing (3) attached to the top plate (15a) of the housing (15). and a rotation mechanism (5).

Specifically, in FIG. 8, the casing (3) has side walls (31) and (32) on the right half.

A drive mechanism storage section (21) surrounded by (33) is disposed, and a rotation mechanism storage section (22) surrounded by a substantially semicircular side wall (34) is formed in the left half, The drive mechanism storage section (2
1) and the rotation mechanism storage part (22) and four mounting bosses (22a) on the cold air blowing side of the rotation mechanism storage part (22).
, (22b).

In (22c) and (22d), the casing (3
) is attached and fixed to the housing (15).

The drive mechanism storage section (21) also includes a motor mounting section (21A) to which a duct motor (41) made of a geared motor is mounted, an electronic control unit (25), a setting switch board (26), and a relay harness (27A). The control section (21B) is provided with a control section (21B), and the upper side is covered with a hollow cover member (61).

As shown in FIGS. 6 and 7, the inside of the cover member (61) has partition walls (
61a), the motor mounting part (2IA) and the control part (21
Corresponding to B), it is divided into a first chamber (62) as a motor chamber and a second chamber (63) as a control chamber, and a casing (3 ) are provided with mounting portions (64), (64) protrudingly provided.

In addition, the first chamber (62) of the earthen wall (65) of the cover member (3)
) side part is formed with a plurality of slits (66) as air exhaust ports extending parallel to the partition wall (61a), and the lower part is a wall part on which mounting parts (64), (64) are protruded. (
6l b) The other two walls (6], c), (
61d), air intake ports (67) and (68) are provided adjacent to the exhaust port (15b). On the other hand, there is a recess (69) in the part of the earthen wall (65) on the second chamber (63) side.
is formed, and an opening (69a) from which the knob (26a) of the internal setting switch plate (26) projects into the recess (69).
.

(69a) has been established.

The upper wall (35) of the casing (3) has a rotating mechanism (
An opening (35a) through which the rotating mechanism (5) passes is bored in the front part, and a rotating mechanism (5) is provided on the inner surface (lower surface) of the top wall (35).
A guide wall (36) is formed to protrude slightly downward. The guide wall (36) is close to the opening (35a) and is continuous with the front side wall (34), and the guide wall (36) and the upper end of the front side wall (34) rotate the rotating mechanism (5) in an annular shape. It constitutes a guide part (37). (38) is the cover part (6
1) Attachment part (64) or casing (3) to be attached
This is the fixed part.

In addition, each of the side walls (31) to (34) and the guide wall (36
) is the lower receiving plate (
A plurality of fixing columns (not shown) are continuously formed to fix the evaporation fan (12f), and the lower receiving plate (23) has an opening communicating with the outlet (12g) of the evaporation fan (12f). (2
3a) is drilled. The opening (23a) is formed concentrically with the opening (35a) of the upper wall (35), and an annular folded piece (23a) bent upward is provided at the periphery of the opening (23a) of the lower receiving plate (23). 23b) is formed in an L-shape.

As shown in FIG. 4, the drive mechanism (4) includes a connecting shaft (42) and a belt transmission mechanism (43) connected to the output shaft (41b) of a duct motor (41). 41), the gear head (41c) is connected to the upper wall (3).
5), and the output shaft (41b) is erected substantially perpendicular to the upper wall (35).

As a result, the first
The chamber (62) is divided into m2 chambers (63) by the partition wall (61a).
and the motor mounting surface (which is the bottom surface of the gear head (41c))
41d), the casing (3) with the rotation mechanism (5)
) is isolated from the internal space of the In FIG. 8, (35b) is a motor mounting hole, and (35c) is an electronic control unit mounting hole.

As shown in FIG. 9, the connecting shaft (42) has an output shaft <
41b) with a hexagon socket set screw (44) and a belt transmission mechanism (43).
The timing pulley (46) is divided into two parts and a pulley-side lower shaft (47) into which the timing pulley (46) is slidably inserted.

Lower end protruding shaft part (47a) of the above-mentioned boob painter side shaft (47)
is the lower part! 12 (23) via a bearing (48) in the vertical direction. Therefore, the connecting shaft (42) is supported by only one bearing (48).

Moreover, as shown in FIG. 10, the upper shaft (45) consists of a large diameter part (45a) and a small diameter part (45b).
The output shaft (45a) to the middle of the small diameter part (45b)
1b) is inserted into the insertion hole (45c), and the insertion hole (45c) is inserted from the small diameter portion (45b) side end (45d).
) A notch (45e) is formed that opens downward to the end.

Therefore, the output shaft (
41b) is a set screw (45f) that is screwed into the screw hole (45f).
44), and the lower shaft (45e) is fixed in the notch (45e).
The pin member (49) inserted into the notch (45) is fitted, and when the upper shaft (45) and the lower shaft (47) are connected,
The relationship between e) and the pin member (49) of the idling mechanism (7), which will be described later, constitutes a universal joint mechanism (6) that absorbs the misalignment of the axes of both shafts (45) and (47).

Further, the pulley-side lower shaft (47) is fitted with a flange (47b) at the lower end and is mounted on the belt transmission mechanism (47).
3) timing pulley (46) is fitted. The timing pulley (46) has teeth (46a) formed on its outer circumferential surface, into which the toothed belt (28) is written, and a recessed portion on the outer circumference of the lower shaft (47) and inside the timing pulley (46). (46c) and the pin member (49) inserted into the upper part.
A compression spring (30) is interposed between the spring seat (29) and the spring seat (29) regulated by the compression spring (30).
The timing pulley (46) is pressed against the flange (47b) of the lower shaft (47) by the spring force of 30), and the timing pulley (46) is slidably fitted to the lower shaft (47), The idling mechanism of the duct motor (41) (
4a) is configured. Note that (2!7B) is a relay harness.

On the other hand, the rotating mechanism (5) is configured by connecting the blowing duct (16) to a rotating cylinder (51) via an elbow (52), and the rotating cylinder (51) is connected to the rotating cylinder main body (51a). The upper part 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 supported in the vertical direction.

An annular extension piece (51b) facing the opening (35a) is continuously formed upwardly on the inner periphery of the upper end surface of the rotary cylinder main body (51a), while a band-shaped projection (51
c), teeth (51d) are formed on the lower outer peripheral surface, and the teeth (51d) are connected to the belt transmission mechanism (4).
The toothed belt (28) of 3) is written on.

Furthermore, the upper part of the rotating cylinder main body (51a) and the casing (
3) there is an upper sliding sea) (53) between the
Lower sliding sheets (54) are interposed between the lower part of the rotary cylinder main body (51a) and the lower support plate (23), and the rotary cylinder main body (51a) is moved by the spring force of the lower support plate (23). It is pressed upward and both the upper and lower end surfaces are sealed.

Further, as shown in FIG. 4, the elbow (52) extends diagonally forward and upward from the rotary tube (51), and its lower end is fitted into the annular extension piece (51b) of the rotary tube (51). At the same time, a blow-off duct (16) is fitted to the upper end. In addition, a relay harness (27C) is attached to the upper inner peripheral surface of the blow-off duct (16) with bushing rivets (59), (59).
) is attached.

Further, as shown in detail in FIGS. 9 to 12, an angular position member (7
), and the angular position member (7) is provided with an arc-shaped support member (7) that protrudes rearward from the rotary cylinder main body (51a).
1) has a plurality of convex portions (72), (72), . . . formed thereon. The convex portions (72), (7
2), . . . extend downward and connect to the air outlet duct (1)
6) is provided corresponding to the rotation angle of each convex portion (7).
2,), (72),...A recess (73) with space between and on both sides.

(73), . . . are formed. And each of the above-mentioned convex portions (72), (72), ... and concave portions (7, 3)
.

(73), .
The four central portions (73a) are formed so as to be located above the center of rotation (N,) of the blow-off duct (16), that is, corresponding to the state in which the blow-off duct (16) faces straight ahead.

Further, intermediate recesses (73b), (73b), etc. located between the central recess (7'3a) and each convex part (72),...
・ is formed with the same narrow width, and the side end recesses (73
c), (73c) is formed wide. on the other hand,
The central convex portions (72a) located on both sides of the four central portions (73a) among the convex portions (72), (72), etc.
, (72a) is wide, and the other side convex part (72b),
(72b).

... are formed to have the same narrow width.

Furthermore, to explain specifically, each of the above-mentioned convex portions (72),
(72),... and recessed parts (73), (73),...
- is set within 100 degrees, which is slightly smaller than the limit angle (110 degrees) of a stopper (not shown) that forcibly restricts the rotation of the blow-off duct (16), and is set within 100 degrees to the left and right around the central recess (73a). The central convex part (72a) is set at a constant angle.
, (72a), the middle four parts (73b), (
73b) is set at 30 degrees, and the intermediate recess (73b)
, each intermediate recess (73b), (73b), ... is set to correspond to 50 degrees, 70 degrees in order from (73b), and the distance between both side end recesses (73c) and (73c) is set to 100 degrees. has been done.

On the other hand, in the casing (3), a photo ink converter (74) serving as a position detection means is mounted on a printed circuit board (75).
It is attached via the photo ink converter (7).
4) includes a light emitting element (74a) and a light receiving element (74a), which will be described later.
b) is arranged to be located on the side of the convex part (72) and the fourth part (73), and the convex part (72) and the fourth part (73) are optically detected in a non-contact manner. It is composed of

At the top of the tip of the air duct (16), there is a person detection sensor (9) which is a person detection means for detecting the person to be air-conditioned in front.
) is attached, and the person detection sensor (9) is the first
As shown in FIGS. 5 and 16, a pair of light emitting elements (Hl), (Hl) fixed to the sensor holder (9a) at an opening angle of a predetermined angle θ3, and a pair of light emitting elements (H+
), (Hl), that is, the pixel (H+),
(Hl ) and a constant setting angle θ1. The light receiving element (J
), and the reflection of infrared rays emitted from the light emitting elements (H+) and (Hl) is detected by the light receiving element (J). However, in this example, θ1−θ2
-θ, therefore, it is set to θ3-20.

Here, each of the light emitting elements (H+) and (Hl) has a predetermined directivity angle ±θH, that is, the direction in which the intensity of the emitted infrared rays is higher than a certain level is limited to a part angle ±θH. It has directivity designed to Further, the light receiving element (J) also has directivity in which the range of incident directions 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 angle ±θH1±θJ is determined to be θH×θ×θday−θJ.

In other words, as shown in FIG.
, (Hl) and the light-receiving element (J), the ranges of their directivity angles ±θJ and ±θH overlap, and the infrared rays emitted from the light-emitting element (Hl) or (Hl) are transmitted to the light-receiving element (Hl). At least one smooth plane exists such that the beam is reflected within the range of the directivity angle ±θJ of the optical elements (H+) and (Hl), and the range of the directivity angle ±θH of both optical elements (H+) and (Hl) is They do not overlap and there is no such smooth plane that the infrared rays from both the light receiving elements (H+) and (Hl) are reflected to the light receiving element (J) at the same time.

In FIG. 1 showing a control block diagram of the spot air conditioner (1), the human detection signal etc. outputted by the human detection sensor (9) is sent to the A/D converter (81) included in the control unit (8). It is converted into a digital signal by the CPU (82
) is configured to be input. Furthermore, the CPU
(82) receives the angle signal outputted from the photointerrupter (74), and also receives the angle signal output from the blowout duct (1).
A mode signal outputted by a mode changeover switch (83a) for switching 6) between a fixed mode, an automatic swing mode, and a human tracking mode, and a setting signal outputted by an angle setting switch (83b) are input.

The control unit (8) also has an R.
Memory consisting of RAM that stores OM and processing data
(84) is connected to the CPU (82), and the RAM storage area of the memory (84) includes a sensor flag (STF), a single person detection flag (HKF),
Incoming detection flag (MKF) and count-up flag (
Although not shown, the control unit (8) includes various timers (TMl) to (TM4).

(TMa), (TMb), and (TMc) are included.

Furthermore, the control unit (8) includes a duct drive circuit (85) for the duct motor (41), and a fan drive circuit (86) for driving and controlling the fan motor (12d).
A compressor drive circuit (87) for driving and controlling the compressor motor (12h) is connected to the CPU (82). The duct motor (41) is connected to the CPU (8
2), the fan motor (12d) is controlled in forward and reverse directions by the duct drive circuit (85).
The compressor motor (12h) is configured to be ON/OFF controlled by a fan drive circuit (86) and a compressor drive circuit (87) based on an output signal from the CPU (82). In addition, the CPU (82) receives the angle signal from the photo ink clubter (74) and drives the fan motor (12) of the condensing and evaporating fans (12e) and (12f).
The fan drive circuit (86) changes the rotation speed of the fan motor (12d) in response to the output of the rotation speed setting means (88). It is designed to let you do so.

The rotation speed setting means (88) is set so that the rotation speed is highest when the blow-off duct (16) is at both ends of the swing, and is lowest when the blow-off duct (16) is at the center of the swing (see FIG. 17).

Next, the air conditioning control operation of this spot air conditioner (1) will be explained.

Therefore, first, the angle detection operation of the blow-off duct (16) and the automatic neck vibration operation using the detected angle, that is, the control operation when the mode changeover switch (83a) is set to the automatic vibration mode will be explained based on FIG. .

When this automatic neck vibration operation is started, it is initialized in step 5T201 and, for example, the count up flag (CUF) is reset, and then the process moves to step 5T202, where the duct motor (41) is initially driven to rotate the blowout duct (16). Then, the process moves to step 5T203, where it is determined whether the output time t of the low signal "0" of the photointerrupter (74) is longer than the set time (Tb) of the side edge timer (TMb),
Step 5T until continuous output exceeds the set time (Tb)
Return to 202. In other words, at the initial stage of control, the blowout duct (1
6) The center of rotation (N) is unknown, and the blowout duct (
16) is also unknown, the blow-off duct (16) is rotated to one end in order to derive the rotation center (N). When the duct motor (41) is driven, the rotary cylinder main body (51) is driven through the belt transmission mechanism (43).
a) rotates, the blow-off duct (16) rotates, and
The angular position member (7) rotates and the photo interrupter (7)
4) outputs a high signal and a low signal alternately by the convex portion (72) and the concave portion (73). Since the output time of the intermediate recess (73b) of the low signal of this recess (73) is short, the operations of steps 5T202 and 5T203 are repeated, the blow-off duct (16) rotates to the side end, and the side end recess (7
3c) rotates to the position of the photo interrupter (74), the low signal continues to be output, so the set time (Tb
), for example, if the output is continued for 200 l1sec, it is determined that the side end position is reached. After that, the process moves from step 5T203 to step DT204, and the count up flag (CUF) is set.
After setting 1 to 1, proceed to step 5T205, reverse the duct motor (41) to counterclockwise rotation, and rotate the blow-off duct (16).
) to the left, that is, towards the center.

Next, the process moves from step 5T205 to step 5T206, and it is determined whether the output signal of the photointerrupter (74) is a high signal "1" or a low signal "0", and if it is a high signal, the process moves to step 5T207, The medium practical timer (TMa) is incremented, and the process moves to step 5T208.
Determine whether the medium practical timer (TMa) has reached the set time (Ta), for example, 200 ssec, and
The process moves to step 5T209 until +sec has elapsed, and it is determined whether or not the count-up flag (CUF) has been reset, and the process returns to step 5T206 until it has been reset. Also, in step 5T206 above,
If the output signal of the photointerrupter (74) is a low signal, the process moves to step 5T210, where the medium practical timer (TMa
) is reset, the process moves to step 5T209, and the above-described operation is repeated.

In other words, when the blow-off duct (16) begins to rotate from the side end toward the center, the photointerrupter (74) alternately outputs a high signal and a low signal through the convex portion (72) and the concave portion (73). Then, with this low signal, the medium practical timer (T
M a ) is reset (step 5T210), and the medium practical timer (TMa) is incremented while the high signal is being output (step 5T207). And the central convex part (72a)
Since the side protrusions (72b), (72b), etc. other than the above are formed with a small width, the high signal output time is short and the medium practical timer (TMa) does not advance to the set time (Ta). Instead, the operations of steps 5T206 to 5T210 are repeated.

After that, when the blow-off duct (16) rotates almost to the center and the central protrusion (72a) rotates to the photointerrupter (74) position, the high signal continues to be output, so the medium practical timer (TM a ) advances to the set time (Ta), the process moves from step 5T208 to step 5T211, and the count up flag (CUF) and counter (C
), the process moves to step 5T209, and since the count up flag (CUF) has been reset, the process moves to step 5T212, where the output signal of the photointerrupter (74) is inverted from a high signal to a low signal (1- 0), count the number of times, and proceed to step 5T2.
Moving on to 13, the swing setting angle of Suita duct (16) is 30.
For example, the angle setting switch (83b
), the process moves to step 5T214, where it is determined whether or not the counter (C) has reached 1, and the process returns to step 5T206 until it reaches 1.

That is, the blowout duct (16) rotates to the center,
The photo ink converter (74) outputs a high signal from the central convex portion (728), and the set time (TMa) of the medium practical timer (TMa) is
After Ta), the operations from step 5T209 onwards are performed, but the operations from step 5T206 to step 5T214 are repeated until the output signal of the photointerrupter (74) changes to the low signal of the central four part (73a). When the high signal of the central convex portion (72a) is reversed to the low signal of the four central portions (73a), the central position of the blow-off duct (16) is identified, and in step 5T212, the central recess (73a) ), the counter (C) is reset by the inversion of the output signal of the photointerrupter (74), and this inversion is not counted, and counting starts from the next inversion of the high signal to the low signal.

Subsequently, the above-mentioned blow-off duct (16) rotates at the center of rotation (N).
When the photointerrupter (74) rotates in the same direction, and now rotates to the left, the output signal of the photointerrupter (74) changes from the low signal of the four central portions (73a) to the central convex portion (72) on the other side.
After inverting to the high signal of a), the next intermediate quadrant (73b)
When the signal is inverted to low again at step 5T212, 1 is added to the counter (C), so step 5T214
In step 5T2, the counter (C) is determined to be 1.
15, the count up flag (CUF) is set to 1, then the process moves to step S721.6, the duct motor (41) is reversed, and the process returns to step S5T206, and the above-described operation is repeated.

That is, as shown in FIG. 16, the four intermediate parts (73b) adjacent to the central convex part (72a) are set to the swing angle of 30 degrees, and the current setting (step 5T213), the angle of 30 degrees is identified by the reversal of the low signal from the first high signal, and the rotation of the blowout duct (16) is reversed (step 5T21).
6).

Thereafter, the rotation center (
Steps 5T206 to 5T212) of deriving N), followed by deriving the other end of 30 degrees in step 5T214, and repeating this operation to
In other words, while deriving the rotation center (N) of the blowout duct (16), the photointerrupter (74)
) detects the rotation angle based on the output signal of the blowout duct (1
6) Shake your head.

Furthermore, when the swing angle of the blow-off duct (16) is set to 50 degrees, the steps 5T213 to 5T
217 and step 57218, the counter (
It is determined whether or not C) has become 3, and the blow-off duct (16) is reversed in the same manner as described above based on the low signal of the intermediate recess (73b) corresponding to 50 degrees. Also, when the swing angle is set to 70 degrees, from step 5T217 to step 5
The process moves to T219 and step 5T220, and the counter (C
) has become 5 and causes the neck to vibrate, and
When it is set to 100 degrees, the process moves from step 5T219 to step 5T221, and it is determined whether the counter (C) has reached 8 or not, and the neck is vibrated.

Next, the air conditioning control operation of this spot air conditioner (1) will be explained based on the control flow shown in FIGS. 21 to 23. Regarding this control flow, there are two modes: a fixed mode in which the outlet duct (16) is fixed facing a certain direction, an automatic swing mode in which the outlet duct (16) automatically swings, and a mode in which the outlet duct (16) is oscillated automatically. ) is rotated to follow the movement of the person to be air-conditioned.

First, the fixed mode will be explained. After the power is turned on, initialization is performed in step ST1. For example, after each flag (STF), (HKF) and (MKF) is reset, the process moves to step ST2. Fans (12e), (12f) and compressor (12a)
In other words, the fan motor (12d) and the compressor motor (12d)
2h) will be driven. After that, step ST2
The process moves to step ST3, the mode is determined, and the current
Since the fixed mode is set by the mode changeover switch (83a), the process moves to step ST4, and the blowout duct (
If the duct motor (41) that rotates the motor 16) is being driven, it is stopped, and then the process moves to step ST5, where the human detection flag (HKF) is set.

Incoming detection flag (MKF) and each timer (TMI) ~ (
TM4). Next, the process moves to step ST6, and if the fans (12e) and (12f) are stopped, they are driven, and then the process moves to step ST7, and the compressor (12f) is started.
Determine whether 3 minutes have elapsed since a) stopped. In other words, in order to prevent the compressor (12a) from starting and stopping continuously, once it is stopped, it is not restarted for 3 minutes.
If 3 minutes have not elapsed, the process moves from step ST7 to step ST8, and returns to step ST3 with the compressor (12a) in a stopped state. On the other hand, if 3 minutes have elapsed, the process moves from step ST7 to step ST9, and the compressor (12a) is stopped. Machine (
12g) is stopped, the compressor (12a) is driven and the process returns to step ST3. Then, the operations from step ST3 to step ST9 are repeated, and the cold air is always blown out in a fixed direction.At this time, since the blowout duct (16) is a flexible pipe, the operator etc. ) will be set manually by curving it appropriately.

Next, the automatic swing mode will be explained. After the power is turned on, it operates in the same way as the fixed mode from step STI to step ST3. In step ST3, the mode changeover switch (83a) is set to the automatic swing mode. Therefore, determine this automatic swing mode and proceed to step 5T1.
0, the duct motor (41) is driven to reciprocate the blow-off duct (16). Thereafter, the process moves from step 5T10 to step ST5, operates in the same manner as in the fixed mode up to steps ST8 and ST9, and then returns to step ST3. In other words, the 18th
While performing the control in steps 57201 to 5T221 in the figure, the blow-off duct (16) is automatically oscillated.

In addition, the rotation speed of the fan motor (12d) is
16), and when the blow-off duct (16) swings at both ends, that is, the blow-off duct (16)
When the fan motor (12d) and therefore the fan (12e) are at the right end limit position and the left end limit position, the rotation speed of the fan motor (12d) and therefore the fan (12e) is the highest. The rotation speed of the fan motor (12d) is also controlled so that the rotation speed of the fan (12e) is minimized. Therefore, when performing intermittent cooling on a plurality of people to be air-conditioned, even if the people to be air-conditioned are lined up horizontally in a row, the fan motor (12d
) By changing the rotation speed of the air conditioner, the perceived temperature of the air conditioner can be approximately equalized, and the person being air conditioned can
Regardless of the position within the rotation range (oscillation range), there is almost no difference in sensible temperature, so a uniform sense of comfort can be achieved.

Next, the person tracking mode will be explained. So, first of all,
The signal processing operation of the human detection sensor (9), which is the basis for controlling the direction of the blow-off duct (16), will be explained based on the control flow shown in FIG. 19 and the control timing shown in FIG. 20.

FIG. 19 shows the control contents of the CPU (82). In step 5T101, the right light emitting element (H2) is turned on (see FIG. 20 (it)) to emit infrared light, and in step 5T102, the light receiving element (H2) is turned on (see FIG. 20 (it)). It is determined whether the output signal V2 of (J) is greater than or equal to the set value Vs. If the set value Vs or more, then in step 5T103, the left light emitting element (Hl
) is turned on (see Fig. 20 (1)) to emit infrared rays, and in step 5T104, the output V of the light receiving element (J) is
It is further determined whether or not 1 is greater than or equal to the set value Vs. If the determination is YES, it is determined that there is a person to be air-conditioned in front of the light receiving element (J), a person detection operation is started in step 5T105, and a person detection signal is output in step 106. , in step 5T107, both optical elements (H+) are selected.

The sensor flag (STF) indicating that the signal from (H2) is input to the light receiving element (J) at the same time is set to "1".
”, the process returns to step 5T101.

After that, the above flow is repeated and the above step 5T10
If the determination in step 4 changes and the output V1 of the light receiving element (J) becomes No, which is lower than the set value Vs, the person to be air conditioned is outside the directivity angle range ±θH of the left light emitting element (Hl). Then, in step 5T108, it is further determined whether the sensor flag (STF) is "1" or not, and if YES, there is a change from the state in which the person to be air-conditioned was present in front of the light receiving element (J). It is determined that the person is moving from the front to the right, and in step 5T109, a rightward movement operation in which the person to be air-conditioned moves to the right is started, and in step 5T110, a rightward movement signal is output.

On the other hand, if the determination in step 5T102 is NO that the output V2 of the light receiving element (J) is lower than the set value VS, the left light emitting element (Hl) is turned on in step 5T110, and the light receiving element (Hl) is turned on in step 5T112. It is determined whether the output v1 of (J) is greater than or equal to the set value VS. and,
If the determination result is YES, further step 5T11 is performed.
3 determines whether the sensor flag (STF) is "1" or not,
If it is "1", it is determined that this is a change from the state in which the person to be air conditioned was present in front of the light receiving element (J), and the left movement movement in which the person to be air conditioned moved to the left is performed in step 5T114. Then, in step 5T115, a left movement signal is output.

In other cases above, that is, steps 5T102 and 5
If the determination at T112 is No, both optical elements (H
+ ), (H2) is on even when the light receiving element (J) is on.
When the outputs V, , V2 are not equal to or higher than the set value Vs, or when infrared rays from one of the light emitting elements (H+ or H2) enter when the judgments in steps 5TIO8 and 5T113 are No and there is no human detection state. In step 5T116, the "no person detected" operation is started, and in step 5T117, an incoming detection signal is output.

When the above flow is finished, the sensor flag (STF) is set to "0" in step 5T118, and step 5T
Return to IOI and repeat the above flow.

Next, the control operation in the human tracking mode based on the signal processing operation of the human detection sensor (9) described above will be explained with reference to FIGS. 21 to 23.

First, after turning on the power, step ST1 to step ST3
In step ST3, the mode changeover switch (83a) is set to the human tracking mode, so the human tracking mode is determined and the process moves to step 5T11, where the human detection flag is set. (HK
It is determined whether F) is "0" or not. Since the human detection flag (HKF) is reset when the power is turned on, the process moves to step 5T12, and the human detection sensor (HKF) described above is reset.
9) determines whether or not it is outputting a person detection signal, and if it is outputting an incoming detection signal in step 5T117 mentioned above, the process goes to step 5713, and if it is outputting a person detection signal in step 5T105, the process goes to step 5713. Then, the process moves to step 5T30.

Therefore, if the person to be air conditioned is not detected, step 5T1
3 starts the incoming detection operation, moves to step 5T14,
It is determined whether the incoming detection flag (MKF) is "0" or not. Since this incoming detection flag (MKF) is reset when the power is turned on, etc., the process moves from step 5T14 to step 5T15, the second timer (7M2) is incremented, and the process moves to step 5T16, and the second timer ( 7M2)
It is determined whether or not a preset short-term standby time (t2) has elapsed, and the process moves from step 5T16 to step 5T17 until this short-term standby time (t2) has elapsed. Then, from this step 5T17, a short-term standby operation is performed and a search operation for the person to be air-conditioned is performed. That is, in step 5T17, the duct motor (41) is driven to cause the blow-off duct (16) to vibrate in response to the output signal of the photo-interrupter (74), similar to the automatic vibrating mode described above. Then step 5
Moving on to T18, both fans (12e).

If (12f) is stopped, drive it and step 5
Proceeding to T19, the compressor (12a) is turned on and off in order to prevent the compressor (12a) from continuously starting and stopping as in step ST7 described above.
It is determined whether 3 minutes have passed since the compressor (12a) was stopped, and after 3 minutes, the process moves to step 5T20, and if the compressor (12a) is started or being driven, it continues to be driven, and before 3 minutes have passed, the process moves to step 5T21. The process returns to step ST3 with the compressor (12a) stopped. Then, the operations from step STI 1 to step 5T21 described above are repeated. Specifically, the above short-term waiting time (
t2) is set to 5 minutes, for example, and the human detection sensor (
9) does not detect the person to be air-conditioned, the compressor (12a)
Then, drive the fans (12e) and (12f) to blow out cold air, wait for 5 minutes until the person to be air-conditioned enters the air-conditioned area, and at the same time rotate the blow-off duct (16) to blow out cold air. Searching for people to use for air conditioning.

Thereafter, if the person to be air-conditioned cannot be detected before the short-term standby time (t2) has elapsed, the process moves to a long-term standby operation, and first, the process moves from step 5T16 to step 5T22, where the duct motor (41) is stopped and the air outlet duct ( 16) at the center with respect to the air conditioner body (12), the process moves to step 5T23, where the fan control relay (Xl) and compressor control relay (X2) are turned OFF to stop both fans (12).
e), (12f) and the compressor (12a) are stopped.

Next, the process moves to step 5T24, and the second timer (7M2
), the process moves to step 5T25, and after setting the incoming detection flag (MKF) to rlJ, the process moves to step 5T26, where the third timer (7M3) is incremented, and the process moves to step 5T27, where the third timer is incremented. It is determined whether or not (7M3) has passed a preset long-term standby time (t3). Then, the process returns from step 5T27 to step ST3 and repeats the above-mentioned operation until this long-term standby time (t3) elapses. At that time, since the incoming detection flag (MKF) is set (step 5T25), The process returns to step 5T22 from 5T14, and the second timer (7M2) does not increment.

If the long-term standby time (t3) does not detect a person to be air-conditioned within this long-term standby time (t3) and the long-term standby time (t3) elapses, the process moves from step 5T27 to step ST2g, and the third timer (7M3) is reset. After that, step 5T2
9, the system will go down, and the restart will be performed by turning the power back on, etc., and the control flow will start from step STI. In other words, this long-term standby operation specifically refers to the long-term standby time (t3).
is set to, for example, 1 hour, and the short-term standby time (
If there is no person to be air conditioned after t2), the compressor (
12a) and the fans (12e) and (12f) are stopped to stop blowing or blowing cold air, and the blowing duct (16) is stopped at the center to wait for the person to be air-conditioned to enter. If there is no person to be air-conditioned after one hour, the entire system is stopped, and even if the person to be air-conditioned enters the monitoring area of the human detection sensor (9), the compressor (1,
2a) etc. will not start automatically.

Next, in this person tracking mode, the person detection sensor (9)
When outputs a human detection signal, the process moves to step 5T30 through step 5712, where the human detection establishment operation is started, and the process moves to step 31, where if the duct motor (41) is being driven, the duct motor (41) is stopped. to stop the blow-off duct (16). Then step 5T32
If both fans (12e) and (1, 2f) are stopped, the corresponding fans (12e) and (12f
), the process moves to step 5T33, and this step 5T33 drives the compressor (
In order to prevent the compressor (12a) from starting and stopping continuously, it is determined whether 3 minutes have passed after the compressor (12a) has stopped. If 3 minutes have passed, the process moves to step 5T34 and the compressor (12a) is stopped.
) is started or is being driven, it continues to be driven and moves to step 5T36, but before 3 minutes have elapsed, it moves to step 5T35 and moves to step 5T36 with the compressor (1, 2a) stopped. Become. Then, in this step 5T36, each timer (TMI) to (TM4)
After resetting, the process moves to step 5T37, where the human detection flag (HKF) is set to "1", and step 5T38
After resetting the incoming detection flag (MKF),
The process returns to step ST3. Then step 5
In TII, since the human detection flag (HKF) is set (step 5T37), the determination is NO, and the process moves to step 5T39, where it is determined whether the human movement condition is satisfied, and the above-mentioned step 5TIIO and step 5T are performed.
In step 115, it is determined whether or not a person movement signal is output.
If the person subject to air conditioning does not move, the process returns to step 5T30, and steps ST3, 5TII, and 5T39
The operations of 5T30 to 5T38 are repeated at predetermined timing.

That is, for example, when the person detection sensor (9) detects the person to be air-conditioned during the search for the person to be air-conditioned in step 5T17, the rotation of the Suita duct (16) is stopped in step 5T31, and the blow-out duct (16) is is directed toward the person to be air-conditioned, and cold air is blown onto the person to perform local cooling.

Furthermore, during the long-term standby in steps 5T22 to 5T27, if a person subject to air conditioning enters the monitoring area of the human detection sensor (9), the process moves from step 5T12 to step 5T30 as described above, and the compressor (12a) and fan (1
2e) and (12f) are driven to blow cold air to the person to be air-conditioned.

Next, a case will be described in which the person to be air-conditioned moves during the human detection establishment operation.

First, step 5TIIO and step 5T1 described above
When the human detection sensor (9) outputs a movement signal in step 15, it is determined in step 5T39 that the human movement condition is satisfied, and the process moves from step 5T39 to step 5T40, where the first timer (TMI) is incremented. Step 5T41
Then, it is determined whether or not the first timer (TM 1 ) has elapsed a preset delay time (tl), and the process returns to step ST3 until the delay time (tl) has elapsed. This delay time (tl) is set to, for example, 1 second, and when the person to be air-conditioned leaves the monitoring area of the human detection sensor (9) and returns immediately, the blow-off duct (16) is prevented from moving, and The status quo is maintained for seconds.

Thereafter, when the delay time (tl) has elapsed, the process moves from step 5T41 to step 5T42, where it is determined whether the person subject to air conditioning has moved to the right or left, and the output of the person detection sensor (9) is determined. Based on the signals, if a rightward movement signal is output in step 5T110 described above, the process proceeds to step 5T43, and if a leftward movement signal is outputted in step 5T115, the process proceeds to step 5T44. First, the case of rightward movement will be explained. In step 5T43, the blowout duct (1
6) is determined whether it has rotated to the right end limit position, and if it has not rotated to the right end limit position, that is, if the side end position is not detected by the output signal of the photo interrupter (74), Since it can be rotated to the right, the process moves from step 5T43 to step 5T45, and the duct motor (41) is rotated to rotate the blow-off duct (16) to the right. Next, the process moves to step 5T46, where the first timer (TMI) and the fourth timer (7M4) are reset.
After moving to step 5T47 and resetting the human detection flag (HKF), the process returns to step ST3. And since the human detection flag (HKF) is reset,
If the determination in step 5Tll is YES and the operations in steps 5T30 to 5738 described above are performed, the process returns to step 5T40. Then, in step 5T45, the blow-off duct (16) is rotated to the right.

On the other hand, the same applies when the person to be air-conditioned is moving to the left, and the process moves from step 5T42 to step 5T44.
It is determined whether or not the blow-off duct (16) has rotated to the left end control position, and if the side end position is not detected based on the output signal of the photo interrupter (74), step 5T is performed.
44, the process moves to step 5T48, and the duct motor (41
) in the opposite direction to rotate the Suita duct (16) to the left, the process moves to step 5T46, and the same operation as in the clockwise rotation described above is performed.

In other words, when the person to be air-conditioned moves from side to side within the air-conditioned area by the blow-off duct (16), the person detection sensor (
9) identifies its direction of movement, steps 5T45 and 5
At T48, the duct motor (41) is rotated in the forward and reverse directions to rotate the blow-off duct (16) to follow the movement of the person to be air-conditioned, thereby tracking the person and blowing cold air even to the moving person. I will continue.

On the other hand, in step 5T4B and step 5T44, if the air outlet duct (16) has rotated to the right end limit position or the left end limit position, even if the person subject to air conditioning further moves in the same direction, the air outlet duct (16) remains in the same position. Since it cannot rotate in the direction, the process moves from step 5T43 to step 5T49, and from step 5T44 to step 5T50, and the fourth
Increments the timer (7M4). Then step 49
The process moves from step 5T51 to step 5T51, and from step 5T50 to step 5T52, and returns to step ST3 from step 5T51 or step 5T52 until the fourth timer (7M4) elapses a preset stop time (t4), and then returns to step ST3, Until (t4) elapses, the blowout duct (
16) is stopped at each end limit position. When this stop time (t4) has elapsed, the process moves from step 5T51 to re-step 5T48, and from step 5T52 to step 5T45, the blow-off duct (16) is rotated in the opposite direction, and the process moves to step 5T46, and the above-mentioned An action is taken.

In other words, if the person to be air-conditioned leaves the edge of the air-conditioned area, there is a high possibility that the person will return from the edge, so the blow-off duct (16) is stopped at each end side limit position, and within this stopping time (t4). When the person to be air-conditioned is detected, the process moves from step 5T39 to step 5T30, and the person is tracked as described above. If the person to be air-conditioned does not return, the blow-off duct (16) is rotated in the opposite direction, and the process is performed as described above. Thus, in step 5T12, it is determined whether or not a human detection signal is output.

After that, after performing the short-term standby operation and search operation (steps 5713 to 5T21) as described above, the long-term standby operation (steps 5T22 to 5T29) is performed, and if the person to be air-conditioned returns during that time, the person tracking will be performed again. Become.

In the above embodiment, the fan motor (
12d) is changed so that the rotation speed is slowest at the center of the swing and fastest at both ends. Even if the air conditioner is in the room, the perceived temperature of the air conditioner can be approximately equalized, and the air conditioner can control the rotation range (oscillation range) of the air outlet duct (16).
No matter where you are located, there is almost no difference in the perceived temperature and you can feel an approximately equal level of comfort. ) and the person to be air-conditioned, the rotation speed of the fan motor (12d) is changed according to the distance to the person to be air-conditioned, regardless of the distance to the person to be air-conditioned. It is also possible to ensure that the person to be air-conditioned always receives a constant amount of airflow and obtains approximately uniform comfort.

That is, as shown in FIG. 24, the human detection sensor (9)
Since the output signal of is inversely proportional to the distance to the person being air-conditioned,
The distance may be detected using the output, and the rotation speed of the fan motor (12d) may be increased as the distance becomes longer.

For example, as the distance increases in the order of L+*Lz and L3, the output signal Vll of the human detection sensor (9) decreases, so the control signal V to the fan motor (12d) decreases.
Increase I2 in inverse proportion to the fan motor (1
2d) rotation speed N, N! By controlling to gradually increase *N2 *N3, the person to be air conditioned can obtain a substantially constant air volume regardless of the distance to the air conditioner main body (12).

As shown in FIG. 25, when the control in this case starts, it is first determined in step 5T51 whether or not there is a human detection signal, and if there is a human detection signal from the human detection sensor (9), the human detection signal is detected. Outputs the control signal VI2 of the fan motor (12d) corresponding to the output signal V11 of the sensor (9) (
Step 5T52) On the other hand, if there is no human detection signal, there is no person to be air-conditioned, so the rotation speed of the fan motor (12d) is set to the minimum rotation speed N min (Step 5T53).
), the process returns to step 5T51 and a person search is performed.

Following step 5T52, in step 5T54, the fan motor (12d) is adjusted to the rotation speed N corresponding to the control signal VI2.
The rotation speed is controlled. As a result, the fan motor (1
2d) Therefore, the rotation speed of the fan (12e) is changed.

Then, in step 5T55, it is determined whether or not the person is being tracked. If the person is being tracked, the number of revolutions changes constantly and becomes difficult to control, so the number of revolutions N is fixed at a constant value (step 5T56). If not tracking a person, step 5T51
Return to

Although the present embodiment has been described with respect to a movable spot air conditioner (1), the present invention may be applied to a duct type spot air conditioner.

Moreover, two or more blow-off ducts (16) may be provided.

Further, the direction of rotation of the blow-off duct (16) may be up or down, and the range of rotation is not limited to the example.

(Effect of the invention) The invention of claim (1) changes the rotation speed of the fan motor according to the swing angle of the blow-off duct.
Even if the people to be air-conditioned are lined up in a row in the horizontal direction, the difference in perceived temperature among the people to be air-conditioned can be eliminated by changing the rotation speed of the fan motor, thereby improving comfort. In particular, according to the invention of claim ('2J), since the rotation speed of the fan motor is controlled to be the fastest at both ends of the swing of the blow-off duct and the slowest at the center of swing, It is possible to equalize the perceived temperature of the air-conditioned people who are lined up in the air conditioner.

In the invention of claim (3), since the rotation speed of the fan motor is changed based on the signal from the infrared sensor for human detection, the rotation speed of the fan motor is approximately constant for the person to be air-conditioned regardless of the distance from the main body of the air conditioner. It is now possible to secure a sufficient amount of airflow, improving comfort.

[Brief explanation of the drawing]

FIG. 1 is a control block diagram showing the configuration of the present invention. 2 to 25 show embodiments of the present invention, with FIG. 2 being a cross-sectional front view of a spot air conditioner, and FIG. 3 being a longitudinal cross-sectional side view thereof. FIG. 4 is an enlarged longitudinal sectional view of the duct driving means, FIG. 5 is a plan view of the blow-off duct, and FIG. 6 is a plan view of the cover member.
FIG. 7 is a longitudinal sectional view of the same, FIG. 8 is a plan view of the casing, FIG. 9 is a sectional view showing the idling mechanism, and FIG. 10 is a sectional view of the upper shaft on the motor side. Figure 11 is a perspective view of the rotating cylinder;
13 is a bottom view of the angular position member, and FIG. 14 is an exploded view of the same. FIG. 15 is a sectional view of the human detection sensor, FIG. 16 is an explanatory diagram showing the arrangement relationship between the light emitting element and the light receiving element, FIG. 17 is a diagram showing the relationship between the swing angle and the rotation speed of the fan motor, and FIG. Figure 18 is a control flow diagram showing angle detection, Figure 19 is a control flow diagram of the human detection sensor,
Figure 20 is an output timing diagram of the human detection sensor, Figures 21 to 24 are control flow diagrams of air conditioning operation, and Figure 25 is the distance to the person to be air conditioned, the output signal of the human detection sensor, and the rotation of the fan motor. It is a diagram showing the relationship with numbers. 1...Spot air conditioner 2...Duct drive means 9...Person detection sensor 12d...Fan motor 12f...Fan 16... ...Blowout duct 74...Photo ink ladle (position detection means)
86...Fan drive means 88...Rotation speed setting means 20 3rd unit 60 Machikon 72~. 32 Mo15 Figure Atsushi 9 Figure 11 Figure tail 12 Asahi Figure 13 Figure tail 14 Figure Nm1n Nmax F〉Motor rotation speed 170 Figure 16 Atsushi Figure 15 Figure 230

Claims (3)

[Claims] (1) In a spot air conditioner (1) in which a blowout duct (16) that blows out conditioned air is rotatably mounted by a duct driving means (2), detect the swing angle of the blowout duct (16). A position detecting means (74) and an evaporating fan (1) receiving a signal from the position detecting means (74).
2f) a rotation speed setting means (88) for setting the rotation speed of the fan motor (12d); and a fan driving means for changing the rotation speed of the fan motor (12d) in response to the output of the rotation speed setting means (88). (86) A spot air conditioner characterized by comprising: (2) The rotation speed setting means (88) is connected to the blow-off duct (16
2. The spot air conditioner according to claim 1, wherein the rotational speed is set to be highest at both ends of the swing and lowest at the center of the swing. (3) It has an infrared sensor for detecting a person (9), and according to the signal from the infrared sensor for detecting a person (9), the duct drive means (2) drives and controls the blow-off duct (16) to control the wind direction. In the spot air conditioner (1) to be controlled, a rotation speed setting means (88) for setting the rotation speed of the fan motor (12d) of the evaporation fan (12f) based on the signal from the human detection infrared sensor (9); A spot air conditioner characterized by comprising a fan drive means (86) for changing the rotation speed of a fan motor (12d) in response to the output of the rotation speed setting means (88).