JP3060056B2 - Wind direction regulator at air-conditioning outlet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind direction adjuster in a long-groove type air-conditioning air outlet provided in an air-conditioning chamber or an air-conditioner installed inside a ceiling of a building.

[0002]

2. Description of the Related Art In recent years, on a ceiling surface of a high-rise building or a commercial or residential building, lighting lights, smoke sensing devices, air-conditioning outlets, etc. are concentrated and arranged in a straight line. The so-called system ceiling is frequently used from the viewpoint of interior beauty and construction. When installing a line diffuser having a rectangular outlet on the lower surface as an air-conditioning outlet on the side of the ceiling light, or installing the line diffuser in a straight line separately from the light separately There are many. In some cases, an embedded air conditioner is installed on the ceiling surface, and conditioned air is blown out from a rectangular outlet provided in the air conditioner.

Conventionally, for example, in the case of a line diffuser, as shown in FIG. 19, a single blade or a T-shaped blade installed near a lower end opening is set to be rotated at a predetermined angle to warm up in winter. Was set to blow directly downward, and the cold air in summer was blown out in a horizontal direction parallel to the ceiling surface. However, in the blade body provided in such a line diffuser, it is relatively easy to blow down in a direction perpendicular to the ceiling surface or in a lateral direction parallel to the ceiling surface. In this case, it is difficult to cause the airflow to become turbulent and blow out intensively in the oblique 45-degree direction, and it is difficult to perform accurate blowing direction setting adjustment in the oblique blowing at an intermediate position between the vertical flow and the parallel flow. There were drawbacks.

[0004] Therefore, the applicant has arranged a wind direction adjuster in the outlet frame along the circumferential surface of a circle inscribed inside the frame body, and connects the two opening portions formed thereby to each other. Japanese Patent Application No. 121738 proposes an outlet formed so as to have different opening width lengths and capable of finely adjusting the blowing direction.

[0005]

However, in the air-conditioning outlet, although the airflow direction is good, one of the openings on the circumference of the wind direction adjuster is set smaller than the other openings. However, since the airflow passes through these close openings, a rapid change in the flow velocity occurs, which causes a problem that noise and pressure loss increase.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to direct an airflow blown from an outlet frame having an elongated rectangular outlet into a direction perpendicular and parallel to a ceiling surface. It is an object of the present invention to provide a wind direction adjuster at an air-conditioning air outlet capable of accurately performing oblique downward blowing at an arbitrary intermediate angle as well as preventing noise and pressure loss.

[0007]

In order to achieve the above-mentioned object, the present invention is directed to an air outlet of a ceiling or an air conditioner. An open air outlet frame 16; and a wind direction adjuster 10 rotatably supported in the air outlet frame 16 near the air outlet 14 so as to be rotatable around the longitudinal direction of the air outlet. The wind direction adjuster 10 is a tubular blade body 1 having a hollow portion having a substantially circular cross section.
The blade body 17 has two openings 30a, 3a, 3b which are communicated with the internal hollow portion S and are arranged at opposing positions.
0b is provided, and the openings 30a and 30b are constituted by a wind direction adjuster 10 at an air-conditioning outlet formed so as to have substantially the same opening width.

Further, the blade body 17 has two openings 3
It is also possible to provide a pair of arc-shaped long plates 32a and 32b provided to face each other so as to form 0a and 30b.

[0009]

In the wind direction adjuster of the present invention, when the airflow flows from the opening of the blade body into the internal hollow part, and is blown out from the opening into the room or the like in the direction perpendicular to the ceiling surface, Between the opening and the other opening, there is a hollow portion S formed by, for example, an arc-shaped long plate. Therefore, when an airflow passes through the opening, a fluctuation in air pressure occurs in a short distance. The width is almost the same, and the hollow part is a substantially cylindrical space, so that the air pressure does not fluctuate greatly due to the diffusion and contraction of the air flow inside the wind direction adjuster, thereby reducing noise and pressure loss. . In addition, the airflow flowing into the hollow portion is smoothly blown out, and the blowout angle can be set with good accuracy.

[0010]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 show an example in which a wind direction adjuster 10 according to an embodiment of the present invention is incorporated inside a line diffuser 12. FIG. In the figure, a line diffuser 12 has a main body portion formed by a trapezoidal outlet frame 16 having a rectangular oblong outlet 14 opened on the lower surface when viewed from the front, and a wind direction adjuster 10 is provided at a lower position in the outlet frame 16. Are rotatably supported. And this wind direction adjuster 10
A cross section is provided along the circumferential surface of a circle substantially inscribed in the outlet frame 16 and has a blade body 17 having a hollow inside.

The outlet frame 16 has trapezoidally opposed vertical frame plates 18, 18, and narrow gaps continuously provided to shield upper surfaces from both side portions of the vertical frame plates 18, 18. Holding plate 2
0. A connection port 22 communicates with the central portion of the one vertical frame plate 18, and as shown in FIGS. 2 and 3, the vertical frame plates 18, 18 are provided at their lower ends with a receiving portion bent inward. It has edges 24, 24 and packings 26, 26, such as felt, which are adhered to the inner surfaces of the vertical frame plates 18, 18 above the receiving edges 24, 24. Then, as shown in FIG. 3, the blade body 17 is provided so as to be sandwiched between the vertical frame plates 18. The blade body 17 does not necessarily need to be attached to the vertical frame plates 18 and 18 in close contact with each other, and may have a slight gap between the blade frame 17 and the inner wall of the vertical frame plate 18 as long as the wind direction can be adjusted.

As shown in FIG. 2, in this embodiment, two sets of blades 17, which are wind direction adjusters 10, are arranged in series, and an automatic wind direction adjusting device is provided at the center of the wind direction adjusters 10, 10. 28 are installed. The blade body 17 is formed in a hollow cylindrical shape, forms elongated openings at opposing portions of the cylindrical wall, and forms a wind flow path by connecting both the openings and the internal hollow portion S. It is.

In FIGS. 2 and 3, the blade body 17 has openings 30a and 30b so that its cross section is along a circle substantially inscribed in the outlet frame 16 and at substantially symmetric positions opposed to each other. A pair of arc-shaped long plates 3 provided so as to be formed and arranged so as to have two elongated notches opposed to a cylindrical peripheral surface.
2a and 32b, and a coma shaft 34 provided on both end surfaces of the cylindrical shape.

In this embodiment, the arc-shaped long plates 32a, 32
As for b, both ends are engaged and held by the top shaft 34, and abut against the packing 26 on the inner surface of the vertical frame plate 18 to maintain airtightness. As described above, the arc-shaped long plate 32a,
32b does not need to be attached in close contact with the inner wall of the outlet frame 16, and it is possible to maintain a slight gap to facilitate rotation.

In FIGS. 4 and 5, the top axis 34 is formed of a short cylindrical body, and the concave portion 36 is symmetrically positioned on the circumferential surface.
Is provided. In the embodiment, the concave portion 36 is provided opposite to the symmetrical position within a range of about 102 degrees in the circumferential direction, and the remaining portion of the concave portion 36 formed by the concave portion 36 projects stepwise from the concave portion 36. A portion 38 is formed. The projecting arc portion 3 is provided at both ends of the concave portion 36.
A locking groove 40 is formed so as to protrude into the locking groove 8 so that both ends of the arc-shaped long plates 32a and 32b are locked in the locking groove 40, and end portions of the arc-shaped long plates 32a and 32b are formed. Is connected to the top shaft 34.

A shaft hole 42 is formed in the cylindrical shaft core of the top shaft 34. A screw shaft 44 is screwed into a side portion (side plate) 20 a of the gap holding plate 20 of the outlet frame 16, and an end protrudes inward. It is made to penetrate and is supported. Thereby, the wind direction adjuster 10 formed mainly by the arc-shaped long plates 32a and 32b is rotatably supported around the longitudinal direction in the outlet frame 16 and the flow of the wind formed by the openings 30a and 30b. The road is deflected to adjust the wind direction.

As shown in FIGS. 6 and 7, an arc-shaped long plate 32a,
32b is formed of a thin elongated plate curved on one side, and has a protruding side 46 at the end corresponding to the long side for engaging with the locking groove 40 of the concave portion 36 of the coma shaft 34. ing. Thereby, both ends of the pair of arc-shaped long plates 32a, 32b are fitted into the concave portions 36, 36 of the coma shafts 34, 34, and the wind direction adjuster 10 is assembled.

As described above, in the present embodiment, two wind direction adjusters 10 are arranged in series, and these are driven to adjust the wind direction via the automatic wind direction adjusting device 28. In FIG. Left and right frame plates 48 are provided facing each other at an intermediate position of the wind direction adjusters 10 so as to partition them with a required gap, and an automatic wind direction adjusting device 28 is provided inside the center of these left and right frame plates 48. Can be

One end of the frame shaft 34 is supported by a screw shaft 44 projecting from the side portion 20a of the gap holding plate 20, and the other end is supported by the left and right frame plates 48. To rotate.

FIGS. 8 and 9 show this automatic wind direction adjusting device 28.
Are shown. In the figure, bearings 50 and 50 are fixed inside the left and right frame plates 48 so as to face the mounting positions of the coma shafts 34 and 34, respectively.
Reference numeral 8 includes a crank portion 52 having a crankshaft 51 supported by the bearings 50 and 50.

Both ends of the crank portion 51 protruding from the bearings 50, 50 are fixed through shaft holes 42 of the coma shafts 34, 34 of the left and right wind direction adjusters 10. At the lower position of the crank portion 52, two stoppers 56, 56 for preventing the upper dead shaft 54a and the lower dead shaft 54b of the crank portion 52 from rotating downward are connected to the left and right frame plates 48, 48. ing. A coil shaft 58 is connected to the left and right frame plates 48, 48 above the crank portion 52, and an urging spring 60 is attached to the lower dead shaft 54 b and the coil shaft 58 of the crank portion 52.
However, a coil spring 62 made of a shape memory alloy is linked to the top dead shaft 54a of the crank part 52 and the coil shaft 58.

As shown in FIG. 8, for example, when the temperature of the air flowing through the outlet frame 16 is about 25 ° C. or more, the biasing spring 6
The coil spring 62 contracts against the urging force in the contraction direction of 0, and the lower dead shaft 54 b is stopped by the stopper 56. At this time, the opening 30 of the blade body 17 related to the left and right wind direction adjusters
a and 30b are located substantially symmetrically in the vertical direction as shown in FIG. 3, so that the flow path of the wind is perpendicular to the ceiling surface C like the opening 30a, the hollow part, and the opening 30b. Becomes

As shown in FIG. 9, when the temperature of the air flowing through the inside of the outlet frame 16 is about 15 ° C. or less, the coil spring 62 is deformed, and the urging force of the urging spring 60 prevails to reduce the length. I do. At this time, the lower dead axis 54b rises and the upper dead axis 5
4a, the crank part 52 rotates so as to descend. Then, the lowered top dead shaft 54a is stopped by the stopper 56,
At this time, the openings 30a and 30b of the left and right wind direction adjusters 10 are provided.
Is displaced to a position rotated by approximately 30 degrees with reference to the center position of the opening 30b as shown by the broken line. As a result, air sent from the air conditioner flows from the upper side to the lower side in the outlet frame 16 and firstly flows into the wind direction adjuster 10 from the opening 30a and is formed into a circle by the inner walls of one of the arc-shaped long plates 32a and 32b. It is deflected in an arc shape, and flows out as if drawing a gentle asymptote while being deflected from the opening 30b located downstream thereof. Therefore, as shown in FIG. 9, the airflow is blown in the direction along the ceiling surface C.

FIGS. 10 to 12 are explanatory views for explaining the air flow direction in the setting state of the blade body 17 of the wind direction adjuster 10. In FIG. 10, for example, the air flow sent from the duct side into the line diffuser 12 is shown. The air flows into the internal hollow portion S from the opening 30a of the blade body 17, and is further blown out from the opening 30b into a room or the like in a direction perpendicular to the ceiling surface. At this time, there is a hollow portion S formed by, for example, arc-shaped long plates 32a and 32b in the middle between the openings 30a and 30b. Therefore, when the airflow passes between them, the air pressure fluctuates in a short distance, Openings 32a, 32
b has substantially the same opening width, and furthermore, as the hollow portion is formed by arc-shaped long plates 32a and 32b along a circle inscribed in a space sandwiched between the vertical frame plates 18 of the outlet frame 16,
Since it is a substantially cylindrical space, there is no portion that obstructs the air flow at an acute angle as shown in FIGS.
The generation of wind noise and other noises is prevented. At the same time, the airflow flowing into the hollow portion S is
Since it is guided by the arc-shaped inner walls a and 32b and is blown out from the opening 30b, it is possible to blow out smoothly in the oblique direction as shown in the figure, and the setting accuracy of the blowout angle is extremely good. It is more preferable that the receiving edge 24 of the vertical frame plate 18 on the side where the air outlet 14 is formed is notched so as to expand toward the indoor side or is formed in a trumpet shape. The air flow direction of the air is smoothly adjusted.

As described above, in the present embodiment, the automatic wind direction adjusting device 28 having the coil spring 62 and the biasing spring 60 made of a shape memory alloy and the left and right wind direction adjusters 10 are linked to each other. Diffuser 12 with its outlet 14
Is aligned with the ceiling surface C and installed.

When the connection port 22 is connected to an air conditioning duct to blow out warm air into the room, the urging spring 62
Spring 62 made of a shape memory alloy against the urging force of
Is reduced, and the lower dead shaft 54b of the crank portion 52 is
6, a pair of arc-shaped long plates 32 of the wind direction adjuster 10
The openings 30a and 30b of the openings a and 32b are automatically set in the vertical direction, and the warm air is blown out from the outlet 14 in a downward direction perpendicular to the ceiling surface C.

In cold air, the shape memory alloy undergoes a return transformation, and the urging force of the urging spring 60 exceeds the coil spring 60 and contracts. 54a is stopped by the stopper 56. Then, the openings 30a, 30b of the pair of arc-shaped long plates 32a, 32b of the blade body 17 are automatically rotated and set in the direction of the ceiling plate C as shown in FIG.
, Low-temperature cold air is blown out in the direction along the ceiling surface C.

Therefore, if the automatic wind direction adjusting device 28 is used,
By the warm air and the cool air blown out from the air-conditioning air outlet, the internal blade 17 can be automatically adjusted in wind direction,
There is no need for each person to insert his / her hand into the outlet to rotate the blade body 17. The shape memory coil spring 62 need not be a coil spring but may be a leaf spring, and may be not an alloy but a shape memory synthetic resin or another shape memory member.

Since the crank portion 52 connected to the left and right blades 17 is always kept in equilibrium by the biasing spring 62 and the coil spring 62, the openings of the left and right blades 17 are not displaced by air resistance. In addition, the cool air and the warm air can be blown into the room with high accuracy, and the air conditioning efficiency can be improved.

However, the wind direction adjuster 10 according to the present invention does not necessarily need to use the automatic wind direction adjusting device 28, and may simply rotate the top axles at both ends and manually rotate it. Other arbitrary wind direction adjustment driving means may be used.

The wind direction adjusters 10 are not limited to the case of using two in series, but may be used alone, may be used side by side, may be used in other arrangements, or may be used by arranging a required number of them. It is good to do.

Further, in the present embodiment, the wind direction adjuster 10 is used at the outlet of the line diffuser. However, the wind direction adjuster 10 may be used at the outlet of the air conditioner body. Further, the wind direction adjuster 10 may be used in another air conditioning outlet.

FIGS. 13 and 14 show an embodiment in which the wind direction adjuster of the present invention is provided in another automatic wind direction adjusting device. In this embodiment, the left and right wind direction adjusters 10, 10
Are arranged in series, and the rotating shaft 64 is fixed through the shaft holes 44 of the facing shafts 36, 36. Then, the center position of the operating plate 66 is fixed to the rotating shaft 64, and the coil spring 6 made of a shape memory alloy is provided at both ends of the operating plate 66.
2 and the urging spring 60 are attached, and the blade 17 is rotated in accordance with the set transformation temperature of the coil spring 62 to perform a required wind direction adjustment.

Reference numeral 68 denotes a support frame for fixing the ends of the coil spring 62 and the biasing spring 60, and reference numeral 70 denotes a support frame for mounting the ends of the operation plate 66 obliquely upward. This is a stopper for stopping the movement. Also,
FIGS. 16 to 18 show an embodiment in which this airflow direction adjuster is arranged at the outlet of an air conditioner 72 of a ceiling embedded type.

Further, the wind direction adjuster according to the present invention is not limited to the configuration of the embodiment described above, and may be arbitrarily modified without departing from the essence of the invention described in the claims. good.

[0036]

As described above, according to the wind direction adjuster in the air-conditioning air outlet according to the present invention, the oblong surface is installed on the ceiling surface or the air blow-out part of the air conditioner and has a rectangular shape on the lower surface to blow out the conditioned air. An air outlet frame having an air outlet opened, and a wind direction adjuster rotatably supported in the air outlet frame near the air outlet near the air outlet so as to be rotatable around the longitudinal direction of the air outlet, The wind direction adjuster is formed of a tubular blade body having a hollow portion having a substantially circular cross section, and this blade body is provided with two openings arranged at positions facing each other through the internal hollow portion, Since the openings are formed so as to have substantially the same opening width, the airflow blown from the outlet can be blown obliquely downward with high accuracy in the vertical and parallel directions to the ceiling surface and at any intermediate angle. At the same time, noise generation and pressure loss can be minimized, It can be formed as a highly use of wind regulator. In addition, since the hollow portion inside the blade body has a substantially circular cross section, it can be blown into a room or the like as a natural flow without giving a sudden change to the airflow, and therefore, fine adjustment of the intermediate angle can be performed with higher precision. Not only can it be performed, but also noise generation and pressure loss can be minimized.

Further, since the blade body is provided with a pair of arc-shaped long plates provided to face each other so as to form two openings, the airflow can be smoothly deflected, noise can be prevented, and pressure can be reduced. This can effectively reduce the loss.

[Brief description of the drawings]

FIG. 1 is a front view of a line diffuser in which a part of an outlet frame in which a wind direction adjuster according to an embodiment of the present invention is disposed is cut away.

FIG. 2 is a partially enlarged front view showing a main part of a wind direction adjuster installed in an outlet frame.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is an enlarged front view of a top axis of the wind direction adjuster.

FIG. 5 is an enlarged right side view of FIG. 4;

FIG. 6 is a partially enlarged front view of an arc-shaped long plate of the wind direction adjuster.

FIG. 7 is an enlarged right side view of FIG. 6;

FIG. 8 is a sectional view taken along the line BB of FIG. 2 for explaining the operation of the wind direction adjuster.

FIG. 9 is a sectional view taken along the line BB of FIG. 2 for explaining the operation of the wind direction adjuster.

FIG. 10 is an explanatory diagram of a flow state of air in a setting state of a wind direction adjuster.

FIG. 11 is an explanatory diagram of a flow state of air in a setting state of a wind direction adjuster.

FIG. 12 is an explanatory diagram of an air flow state in a setting state of a wind direction adjuster.

FIG. 13 is a partially enlarged front view according to an embodiment when the wind direction adjuster of the present invention is attached to another automatic wind direction adjusting device.

FIG. 14 shows the wind direction adjuster in the embodiment of FIG. 13;
It is CC line sectional operation explanatory drawing.

FIG. 15 shows the wind direction adjuster in the embodiment of FIG. 13;
It is CC line sectional operation explanatory drawing.

FIG. 16 is a partially enlarged front view of a case where a wind direction adjuster according to the present invention is attached to an air outlet of an air conditioner.

FIG. 17 shows the wind direction adjuster in the embodiment of FIG. 16;
It is DD sectional drawing operation explanatory drawing.

FIG. 18 shows the wind direction adjuster in the embodiment of FIG. 16;
It is DD sectional drawing operation explanatory drawing.

FIG. 19 is an explanatory view of a main part showing a conventional wind direction adjusting mechanism of a line diff user.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Wind direction adjuster 12 Line diffuser 14 Outlet 16 Outlet frame 18 Vertical frame plate 28 Automatic wind direction adjuster 30a Opening 30b Opening 32a Arc long plate 32b Arc long plate 34 Coma shaft 36 Depression 44 Screw shaft 60 Energizing spring 62 Coil spring S Hollow part C Ceiling surface

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-49-55147 (JP, A) JP-A-62-76858 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 13/068 F24F 1/00 401 F24F 11/02 102 F24F 13/072 F24F 13/10

Claims (2)

(57) [Claims] 1. An outlet frame which is installed on a ceiling surface or an air outlet of an air conditioner and has an elongated rectangular outlet opening on a lower surface to blow out conditioned air; A wind direction adjuster rotatably supported around the longitudinal direction of the outlet at the outlet near edge, the wind direction adjuster comprising a cylindrical blade body having a hollow portion having a substantially circular cross section. The blade body is provided with two openings which are communicated with the internal hollow portion and are arranged at positions opposite to each other, and the openings are formed so as to have substantially the same opening width. Moderator. 2. The wind direction adjuster according to claim 1, wherein the blade body comprises a pair of arc-shaped long plates provided to face each other so as to form two openings.