JPH09166351A - Air direction shifting equipment of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shift the direction of blown air automatically. SOLUTION: Air direction shifting plates 4a, 4b, 4c and 4d are disposed respectively at outlets provided along four sides of a virtually square lower-side panel. Interlocking means 21, 22 and 23 interlocking the adjacent ones of the air direction shifting plates 4a, 4b, 4c and 4d are disposed in three ones 20a, 20b and 20c out of four corner parts 20a, 20b, 20c and 20d of the lower-side panel. One interlocking means 21 out of them has a driving means for swinging the air direction shifting plates, in combination.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind direction changing device incorporated in a ceiling-embedded air conditioner that blows out in four directions.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. 60-44735 discloses a ceiling-embedded air conditioner having air outlets on four sides of a lower panel. A wind direction change plate is provided at each of the air outlets, and the air has already been put to practical use in a form in which the blown air is guided obliquely downward during cooling and directly downward during heating.

[0003]

Since the wind direction changing plate is designed to change its direction manually, it has to be operated by riding on a step or the like, which is troublesome. And the cold air descends,
Since the warm air rises, the air is blown diagonally downward during cooling and directly downward during heating. However, there was a problem of giving discomfort.

[0004] The present invention is to provide a wind direction changing device for an air conditioner which solves such a problem.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a wind direction changing device for an air conditioner in which air outlets are provided along four sides of a substantially quadrangular lower panel, and wind direction changing plates are arranged at these air outlets, respectively. Interlocking means for connecting adjacent wind direction changing plates are arranged at three corners of the four corners of the lower panel, and one interlocking means also serves as a driving means for swinging the wind direction changing plates. It is characterized by that. Since the interlocking means is provided at the corner portion which becomes the dead space in the quadrangular bottom panel, the air conditioner does not need to be large.

Further, by providing the suction grill so as to be surrounded by the air outlet and making the swing direction of the wind direction changing plate the same, the flow of the blown air around the suction grill becomes uniform.
That is, these four wind direction change plates are all the same, such as in a direction directly below or diagonally below the lower panel, and substantially uniform air conditioning is performed around the air conditioner.

Further, by arranging interlocking means which also serves as driving means for the wind direction changing plate between the remaining two interlocking means, one wind direction changing plate is not provided for the two wind direction changing plates which are not directly driven by the driving means. The driving force is transmitted via the plate and one interlocking means.

Furthermore, the two adjacent wind direction change plates are arranged at substantially right angles, and the two interlocking means connecting them are made of the same member, so that parts can be shared.

[0009]

1 is a bottom view of a ceiling-embedded air conditioner, FIG. 2 is a sectional view taken along line II-II 'of FIG. 1, and FIG. 3 is a bottom view showing a main part of a wind direction changing device. The ceiling-embedded air conditioner has a sheet metal unit main body 2 with an insulating material 1 attached to the inner wall,
Suction grill 3 in the center, wind direction change plate 4a on the four sides of the periphery,
And a lower panel 6 for ventilation provided with air outlets 5a, 5b, 5c, 5d with 4b, 4c, 4d.

7 is an air filter 8 from the suction grill 3
A nozzle motor for sucking and guiding the indoor air to the turbo fan 9 via a nozzle; 10, a fan motor mounted on a nozzle plate 11 by supporting legs 12; 13, an annular drain van arranged along the outer periphery of the nozzle port 7 Reference numeral 14 denotes an annular heat exchanger arranged so as to surround the turbofan 9. Reference numeral 15 denotes a unit that pushes the unit main body 2 from the ceiling hole 17 of the ceiling plate 16 into the ceiling space 18 and
It is a suspension bolt for hanging and fixing.

One corner of the lower panel 6
20a is provided with a driving means 21 for swinging the first and second wind direction change plates 4a and 4b adjacent to the corner portion in conjunction with each other, and is located on a diagonal line of the lower panel 6. The other two corner portions 20b and 20c have a first wind direction changing plate 4a.
Interlocking means 22 and 23 are provided for swinging the third wind direction changing plate 4c in synchronization with the second wind direction changing plate 4b and the fourth wind direction changing plate 4b in synchronization with the second wind direction changing plate 4b.

Reference numerals 24a, 24b, 24c, and 24d denote respective corner portions 20.
A cover for covering a, 20b, 20c, and 20d. When the cover is removed in a downward direction, the drive means 21 and the interlocking means 22, 23 can be seen as shown in FIG. The driving means 21 is provided with a main gear 25 rotated by a motor (not shown) in the direction of the arrow, driven gears 26a and 26b meshing with the main gear and rotated in the direction of the arrow, and these driving gears are shifted by 180 degrees. Pins 27a and 27b,
Slots 28a, 28b fit into these bottles and fulcrums 29a, 29b
The arms 30a and 30b swinging around the center and holes 32a and 32b are fitted in the tips 31a and 31b of these arms and swung in the direction of the arrow, and the first and second wind direction changing plates 4a and 4b are swung. It is composed of cams 33a and 33b that transmit directional power. Further, one interlocking means 22 is provided with a thick shaft 34a at the other end of the first wind direction changing plate 4a.
And a thick shaft 34c at one end of the third wind direction changing plate 4c, and a coil spring 35 whose both ends are tightly fitted to both shafts. The other interlocking means 23 is also a second wind direction changing plate. It comprises a thick shaft 34b at the other end of 4b, a thick shaft 34d at one end of the fourth wind direction changing plate 4d, and a coil spring 36 having both ends tightly fitted to both shafts. In addition,
When the power from the driving means 21 is transmitted to the third and fourth wind direction change plates 4c and 4d via the first and second wind direction change plates 4a and 4b by the coil spring 36, There is no problem if some mechanical play occurs.

With this configuration, the room air drawn into the turbo fan 9 from the suction grill 3 through the nozzle port 7 is discharged from the turbo fan 9 in the entire circumferential direction, and then is cooled by the heat exchanger.
When passing through 14, it is cooled during cooling and heated during heating. Then, the cooled or heated air is supplied to the outlets 5a, 5b,
When the air is blown out in the four directions from 5c and 5d, the air blowing direction is continuously changed in the diagonally downward direction and directly below by the wind direction change plates 4a, 4b, 4c and 4d which swing vertically.

That is, when the cooling / heating operation is started, the motor is driven at a low speed to rotate the main gear 25 of the driving means 21 in the direction of the arrow shown in FIG. 3, so that the driven gears 26a and 26b rotate in the direction of the arrow. Is done. The state shown in FIG. 3 shows the first and second wind direction change plates in which the tips 31a and 31b of the arms 30a and 30b face the most inward.
When 4a and 4b are diagonally downward as shown in FIG. 2, at this time, the third and fourth wind direction changing plates 4c and 4d are also interlocked with each other.
Due to 2 and 23, they are obliquely downward facing in synchronization with the first and second wind direction change plates 4a and 4b.

When the main gear 25 rotates 90 degrees from this state, the pins 27a and 27b move to the positions 27a1 and 27b1 of the chain lines, respectively. When the main gear 25 rotates further 90 degrees, the pins 27a and 27b respectively change the positions of the chain lines. Move to positions 27a2, 27b2. At this time, arm 30
The ends 31a and 31b of the a and 30b are oriented in the opposite direction to the state shown in FIG. 3, and the first and second wind direction change plates 4a and 4b and the third and third The wind direction change plates 4c and 4d of 4 are in a state of being directed directly downward as shown by a chain line in FIG.

When the main gear 25 rotates 90 degrees from this state, the pins 27a and 27b move to the positions 27a3 and 27b3 of the chain lines, respectively. When the main gear 25 rotates 90 degrees, the pins 27a and 27b respectively change to the solid lines. Returning to the original position, the first to fourth wind direction change plates 4a, 4b, 4c, 4d are again in the obliquely downward state. By repeating this six times a minute, the blowing direction of the cool air or the warm air is continuously changed from the obliquely downward direction to the directly downward direction as described above.

Although the coil springs 35 and 36 are used as the interlocking means 22 and 23 in the above embodiment, a pair of bevel gears may be used instead of the coil springs.

As described above, the first to fourth wind direction change plates 4
a, 4b, 4c, 4d in the same direction at the same time, that is, the bottom panel 6
Because the air conditioner is directed downward or obliquely downward, substantially uniform air conditioning is performed around the air conditioner.

[0019]

According to the present invention, the blowing direction of the cold and warm air blown from the four sides of the lower panel of the air conditioner is automatically changed by the wind direction changing plate. In addition, it is possible to prevent the human body from feeling uncomfortable and to eliminate the uncomfortable feeling, so that the blowing air velocity can be set to be high, so that the warm air can reach the feet.
Moreover, by setting all the four wind direction changing plates so as to face the same direction with respect to the lower panel, it is possible to obtain a comfortable heating effect and substantially uniform air conditioning with little temperature unevenness around this air conditioner. .

Further, by disposing the interlocking means also serving as the drive means of the wind direction changing plate between the remaining two interlocking means, one wind direction changing plate is provided for the two wind direction changing plates which are not directly driven by the drive means. Since the driving force is transmitted through the plate and one interlocking means, even if some mechanical play occurs in the interlocking means, it can be operated without any problem.

Further, since four wind direction change plates are swung by a drive means by one motor and two simple interlocking means, they are manufactured at a lower cost as compared with a structure in which motors are individually provided on the wind direction change plates. can do. In addition, by using the same member for the two interlocking means, the components can be shared.

[Brief description of the drawings]

FIG. 1 is a bottom view of a ceiling-mounted air conditioner.

FIG. 2 is a sectional view taken along the line II-II 'of FIG.

FIG. 3 is a bottom view showing a main part of the wind direction changing device.

[Explanation of symbols]

 4a, 4b, 4c, 4d Airflow direction changing plate 5a, 5b, 5c, 5d Air outlet 6 Bottom panel 20a, 20b, 20c Corner part 21 Drive means 21, 22, 23 Interlocking means.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Koji Inoue 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Junichi Saito 2-5 Keihan Hondori, Moriguchi City, Osaka Prefecture No. 5 Sanyo Electric Co., Ltd. (72) Inventor Yoshi Ishihara 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (4)

[Claims] 1. A wind direction changing device for an air conditioner in which air outlets are provided along four sides of a substantially quadrangular lower surface panel, and air flow direction changing plates are arranged at these air outlets, respectively. An air conditioner characterized by arranging interlocking means for connecting adjacent airflow direction changing plates at three corners, and one interlocking means also serving as a drive means for swinging the airflow direction changing plates. Wind direction changing device. 2. The wind direction changing device for an air conditioner according to claim 1, wherein a suction grill is provided so as to be surrounded by the air outlets, and the swing directions of the wind direction changing plates are the same. 3. The wind direction changing device for an air conditioner according to claim 1, wherein the interlocking means that also functions as a drive means for the airflow direction changing plate is arranged between the remaining two interlocking means. 4. The wind direction changing device for an air conditioner according to claim 1, wherein two adjacent wind direction changing plates are arranged substantially at right angles, and two interlocking means connecting them are the same member. .