JP2000249393A - Blowout port device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To raise the air conditioning effect by blowing out an air current in corner direction, too, thereby suppressing the induction to the corner section of indoor air and preventing the dew condensation and also, diffusing the air current efficiently. SOLUTION: For this device, the vane bodies 12a and 12b constituting an inner cone 12 have corner inclines being made by transforming their corner parts inward direction of the vane bodies into chamfered form, whereby the space between an outer cone part 11b and the inner cone 12 is enlarged at each corner part. Hereby, the air current from a neck part 11a flows in the corner part, too, without resistance, thus this device blows outs an air current in the corner direction, too, and the contact of induced gas to an open frame 11 disappears, and this can prevent the pollution and dew condensation without fail, and also this can sharply drop the static pressure loss by the decrease of resistance in passage of air current, and can reduce the noise, too.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air outlet device which is arranged facing a space to be air-conditioned and blows air for air conditioning into this space in a predetermined blowing pattern.

[0002]

2. Description of the Related Art Of the blow-out devices that blow conditioned air into a room, which is an air-conditioning target space, a multi-layer cone-type blow-out device has been conventionally provided with a round shape or a round shape having a combination of circles. , Square type, etc. composed of a combination of straight lines. As an example of such a conventional outlet device, a square outlet device is shown in FIGS. 5A is a partially cutaway front view of the conventional outlet device, FIG. 5B is a partially omitted bottom view of the conventional outlet device, and FIG. 6 is a plan view of the conventional outlet device. FIG. 7 is an explanatory view of a blow-out state of a conventional blow-out device.

[0003] In each of the above figures, a conventional outlet device 100 is shown.
Is a ceiling 50 facing an indoor space which is an air conditioning target space.
And an opening frame 101 having an opening region for supplying conditioned air from a duct 51 in a ceiling 50 and blowing the conditioned air into a room space, and an opening frame 101 having a square opening cross section and different sizes from each other. Two expanding blade bodies 102a, 1
02b is formed of a multi-layered blade body integrated at the same center position, and includes a middle cone 102 disposed at a predetermined position inside the opening area of the opening frame 101.

The opening frame 101 has a cylindrical neck portion 101a connected to the duct 51 in the ceiling 50, an outer cone portion 101b having a square opening cross section toward the indoor space side, and An edge 101c formed at the lower end of the outer cone portion 101b so as to stand vertically toward the indoor space.
And a frame portion 101d protruding from the lower end of the edge portion 101c in a direction outward from the opening region by a predetermined width.

In the above-described conventional outlet device 100, the conditioned air sent from the duct 51 flows between the outer cone portion 101b and the middle cone 102 in the opening region of the opening frame 101, or each blade of the middle cone 102. Body 102a, 1
02b, and is blown into the room from the lower end of the opening area.

[0006]

The conventional outlet device is constructed as described above. The opening section of the neck portion 101a of the opening frame 101 is circular, while the outer cone portion 1 is open.
01b and the middle cone 102 have a square opening cross section, so that in the gap between the outer cone portion 101b and the middle cone 102 through which the airflow passes most in the opening area inside the opening frame 101, conditioned air is supplied to this gap. The portion of the neck portion 101a to be supplied, which is located just in the extension direction, is particularly narrow at the corner portion (see FIG. 6).
The airflow from a is hard to flow. Further, the airflow flowing between the blades 102a and 102b of the middle cone 102 is also reduced by the outer cone portion 101b on the outside and the middle cone 1b.
By blowing air into the room in accordance with the airflow passing through the gap with the air outlet 02, almost no airflow is blown in the corner direction of the air outlet device 100 (see FIG. 7). For this reason, in the conventional outlet device 100, the outer cone portion 101 b and the edge portion 101 b of the opening frame body 101 and the frame portion 101 d
The room air drawn by the airflow blown out from the other parts reaches the corners of the room and comes into contact with it, and is contaminated by the adhesion of dust and the like in the air. There has been a problem that dew condensation may occur when a cold corner is touched.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and suppresses the attraction of room air to a corner portion by blowing airflow toward a corner to prevent dew condensation.
It is an object of the present invention to provide an air outlet device capable of efficiently diffusing an air flow and improving an air conditioning effect.

[0008]

According to the present invention, there is provided a blow-out device according to the present invention, wherein a gas for air conditioning is supplied from one end and the gas is blown from the other end into a space to be air-conditioned. An opening frame body having an opening area having a rectangular opening cross-sectional shape and having an outer cone portion expanding from the one end side to the other end side, and disposed in the opening area of the opening frame body; And a multi-layer cone-type blowout device including a middle cone formed of one or more blades formed in a rectangular or square expanded shape, wherein the blades of the middle cone have corner portions where surfaces intersect with each other. A corner inclined surface is formed which is bent inward at both side positions separated by a predetermined distance from the bent frame and substantially matches the shape obtained by chamfering the corner portion between the bent positions. Center position and extension direction of the outer cone of the body The matched allowed and sail body end side in which is arranged in the opening region as end sides parallel to the direction of the opening frame. As described above, in the present invention, the blade body forming the middle cone is formed with a corner inclined surface in which the corner portion is chamfered in the inward direction of the blade body, and the gap between the outer cone portion and the middle cone at the corner portion is formed. As a result, the airflow from the upstream side flows more smoothly into the corners, the airflow also flows out toward the corners, and there is no contact of the inducing gas to the corners of the opening frame body. Dew condensation can be reliably prevented.

In addition, the air outlet device according to the present invention may be arranged such that, when necessary, the blade of the middle cone is changed from an octagonal opening cross-sectional shape in which each corner of a predetermined rectangle or square is cut off to a rectangular or rectangular opening cross-sectional shape. It has an expanded shape that gradually changes up to the maximum. Thus, in the present invention, the middle cone disposed in the opening area of the opening frame body is formed in an octagonal opening cross-sectional shape in which the upstream corners of each blade body are shifted toward the inside of the blade body, By locating more corners in the gap between the outer cone and the middle cone on the front of the straight stream of the airflow from the upstream side, the airflow from the upstream side flows into the corners without resistance, and in the corner direction Air flow is generated and a blowing pattern close to the round air outlet is obtained, contact of the inducing gas to the corner of the opening frame is eliminated, contamination and dew condensation at the corner can be reliably prevented, and the air flow resistance is reduced. As a result, the static pressure loss can be greatly reduced, and the noise can also be reduced.

[0010] Further, in the blow-out device according to the present invention, if necessary, the opening frame may have an edge standing at a predetermined length in the direction of the air-conditioning target space at an end of the outer cone portion on the air-conditioning target space side. And the middle cone makes at least the end position of the middle cone on the air conditioning target space side substantially coincide with the front end of the edge on the air conditioning target space side in the opening region of the opening frame body. It is disposed so as to be position adjustable in two ways: a position and a position shifted from the position by the edge length in the direction opposite to the air-conditioning target space direction. As described above, in the present invention, the substantially vertical edge portion is formed on the opening frame, and the middle cone is disposed so as to be adjustable with respect to the opening frame, and the positional relationship between the middle cone and the edge is adjusted. Then, at least the airflow along each blade of the middle cone is blown out from the lower part of the opening frame as it is, and the airflow is once applied to the edge and the direction of the airflow is changed to the substantially vertical direction and switched. As a result, an appropriate blowing pattern can be selected in accordance with the temperature of the airflow and the surrounding conditions to improve the air conditioning performance.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an outlet device according to an embodiment of the present invention will be described with reference to FIGS. 1A is a partially cutaway front view of the outlet device according to the present embodiment, FIG. 1B is a partially omitted bottom view of the outlet device according to the present embodiment, and FIG. FIG. 3 is a plan view of the outlet device according to the embodiment, FIG. 3 is a perspective view of a middle cone of the outlet device according to the present embodiment, and FIG. 4 is an explanatory view of a blowing state of the outlet device according to the present embodiment.

In each of the drawings, the outlet device 1 according to the present embodiment is disposed on a ceiling 50 facing an indoor space which is a target space for air conditioning, and conditioned air is supplied from a duct 51 in the ceiling 50. And an opening frame 11 having an opening area for blowing the conditioned air into the indoor space, and a plurality of expanding blades 12 having a predetermined opening cross section and different sizes from each other.
a, 12b is formed of a multi-layered blade body integrated at the same center position, and includes a middle cone 12 disposed at an adjustable height position in two steps with respect to the opening area of the opening frame body 11. It is.

The opening frame 11 has a cylindrical neck portion 11a connected to the duct 51 in the ceiling 50, and an outer cone portion 1 having a square opening cross section toward the indoor space.
1b, an edge 11c formed at the lower end of the outer cone portion 11b so as to stand vertically toward the indoor side, and an edge 11c.
c, a frame portion 11d protruding from the lower end portion by a predetermined width in an outward direction with respect to the opening region.

The middle cone 12 has a plurality of blades 12a, 12 having an expanded shape that gradually changes from an octagonal opening cross-sectional shape obtained by cutting off each corner of a square to a square opening cross-sectional shape.
b are formed integrally with each other, and each of said blade bodies 12a, 12
The center position and the expanding direction of b are aligned with the center position and the expanding direction of the outer cone portion 11b of the opening frame 11 and the direction in which each blade body edge is parallel to the edge of the opening frame 11. The lower end position in the opening area of the opening frame 11 is
The position is adjusted in two ways: a height position substantially coincident with the lower end of c, and a position raised from this position by the height of the edge. At the lower engagement position of the middle cone 12 with respect to the opening frame 11, the lower end position of the middle cone 12 coincides with the lower end of the edge 11 c, and along the blades 12 a and 12 b of the middle cone 12. The airflow can be blown out from the lower part of the opening frame 11 as it is. On the other hand, at the upper engagement position, the airflow along the respective blades 12a and 12b of the middle cone 12 is once coincident with the height position raised from the lower end position of the edge 11c by the height of the edge 11c. Part 1
1c, the airflow can be blown out by changing the direction of the airflow vertically downward. By adjusting the positional relationship between the middle cone 12 and the edge 11c in this manner, an appropriate airflow blowing direction can be selected according to the temperature of the airflow and the surrounding conditions.

Next, an air flow blowing operation by the air outlet device having the above-described configuration will be described. First, the conditioned air sent from the duct 51 enters the neck 11a of the opening frame 11 and the outer cone 11a and the middle cone 12
And between the blades of the middle cone 12.

Each blade 12a, 12b of the middle cone 12
Is formed in an octagonal opening cross-sectional shape in which the four corners of the blade body are shifted more inward on the upstream side to form a corner, and a gap between the outer cone portion 11b and the middle cone 12 is formed at a corner portion. The airflow from the neck 11a also smoothly flows into the corners without resistance because the airflow is also located in the extension direction of the neck 11a (see FIG. 2). Thus, between the outer cone 11a and the middle cone 12, as well as the middle cone 1
2 blows out from the lower part of the opening region of the opening frame 11 almost uniformly in the entire circumferential direction including the corner direction, and has a blowing pattern substantially similar to that of the round outlet (FIG. 4). reference).

In this blowing pattern, when the position of the middle cone 12 is lowered with respect to the opening frame 11, the airflow flows along the blades 12 a and 12 b of the middle cone 12 and Then, the air blows horizontally from the lower part of the opening region of the opening frame 11 (see FIG. 1A; arrow X). In the case of cooling, the airflow diffuses throughout the room while attracting the air inside the room, and the cooled conditioned air can be sufficiently fed from the ceiling 50 to the living area below, resulting in an optimal blowing pattern.

On the other hand, the medium cone 12
Is raised, the airflow flows along the blades 12a, 12b of the middle cone 12 and leaves the middle cone 12, and then hits the lower edge 11c of the outer cone 11a, and the flow of the air flows. The direction is changed to downward, and a state of blowing out substantially vertically downward (see FIG. 1A; arrow Y). Particularly in the case of heating, warm air that is lighter than indoor air can be blown downward from the ceiling 50 to reliably reach the lower living area,
It becomes an optimal blowing pattern.

As described above, in the air outlet device according to the present embodiment, each of the blade bodies 12a and 12b of the middle cone 12 is formed in an octagonal opening cross-sectional shape having a corner portion on the upstream side, and the neck portion is formed. Since the flow path of the airflow that goes straight from 11a is secured in the corner portion and the airflow is guided to the corner portion without resistance, the airflow is also blown out in the corner direction, and the gas is attracted to the outer cone portion 11b and the frame portion 11d. Without any contact, contamination and dew condensation can be reliably prevented, and a reduction in resistance to air flow can reduce static pressure loss and noise. In addition, a vertical edge portion 11c is formed on the opening frame body 11 and the middle cone 12 is connected to the opening frame body 11
The air flow direction can be switched between horizontal and vertical directions by changing the position of the middle cone 12 so that air conditioning can be performed according to the temperature of the air flow and the surrounding conditions. Can be performed. Furthermore, since the conditioned air can be blown from the opening area to the entire circumference, the blowout pattern is almost the same as the round blowout device, and the use of the square and round shapes is based on the difference only in the design surface, and more In this situation, a square shape can be selected, and the range of use can be expanded.

In the air outlet device according to the above embodiment, all four corners of the blade bodies 12a and 12b forming the middle cone 12 have an octagonal opening cross-sectional shape in which corners are formed on the upstream side. However, the present invention is not limited to this, and it may be configured to have a pentagonal, hexagonal, or heptagonal opening cross-sectional shape in which one of the corners is left as it is on the upstream side, and this corner is directed toward the corner as it is. Is stopped, and only airflow in other directions is performed. When using this to avoid blowing out to places where you do not want to blow out conditioned air near the outlet (smoke detectors, heat detectors, etc.), or when blowing out at places where the blowing direction must be limited Can be used without changing the appearance of the air outlet device, maintaining a consistent feeling of the ceiling surface, and when changing the function, it is not necessary to remodel the ceiling etc. only by replacing the middle cone with a different shape of the blade corner And equipment costs can be reduced.

In the outlet device according to the embodiment, the edge 11c is formed below the outer cone 11b of the opening frame 11, and the middle cone 12 can be moved up and down to blow air. The direction can be changed, but this is not a limitation, but the airflow is blown out by fixing the middle cone, or by omitting the edge of the opening frame and making the frame protrude immediately from the outer cone. May be fixed.

[0022]

As described above, according to the present invention, the blade body forming the middle cone is formed with a corner inclined surface in which the corner portion is chamfered inwardly toward the blade body, and the outer cone at the corner portion is formed. By increasing the gap between the part and the middle cone, the airflow from the upstream side will flow more smoothly into the corners, and the airflow will also flow out toward the corners, and the contact of the attracted gas to the corners of the open frame body will also occur. Thus, there is an effect that the contamination and dew condensation at the corner portion can be reliably prevented.

Further, according to the present invention, the middle cone disposed in the opening area of the opening frame has an octagonal opening cross-sectional shape in which the upstream corners of the respective blades are shifted toward the inside of the blades. By positioning each corner portion in the gap between the outer cone portion and the middle cone more in front of the straight stream of the airflow from the upstream side, the airflow from the upstream side flows into the corner portion without resistance, The airflow also flows toward the corners, and a blow pattern close to the round air outlet is obtained.There is no contact of the inviting gas to the corners of the open frame, so that contamination and dew condensation at the corners can be reliably prevented, and the airflow passes. This has the effect that the static pressure loss can be greatly reduced by reducing the resistance, and the noise can also be reduced.

Further, according to the present invention, a substantially vertical edge is formed on the opening frame, and the middle cone is disposed so as to be adjustable with respect to the opening frame. By adjusting the relationship, at least airflow along each blade of the middle cone is blown out directly from the lower part of the opening frame, or when airflow is once applied to the edge and the airflow direction is changed to almost vertical direction and blown out By switching between the two, it is possible to select an appropriate blowing pattern in accordance with the temperature of the airflow and the surrounding conditions, thereby improving the air conditioning performance.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view and a partially omitted bottom view of an outlet device according to an embodiment of the present invention.

FIG. 2 is a plan view of the outlet device according to the embodiment of the present invention.

FIG. 3 is a perspective view of a middle cone of the outlet device according to the embodiment of the present invention.

FIG. 4 is an explanatory view of a blow-out state of the blow-out device according to one embodiment of the present invention.

FIG. 5 is a partially cutaway front view and a partially omitted bottom view of a conventional outlet device.

FIG. 6 is a plan view of a conventional outlet device.

FIG. 7 is an explanatory view of a blow-out state of a conventional blow-out device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 100 Blow-out apparatus 11, 101 Opening frame body 11a, 101a Neck part 11b, 101b Outer cone part 11c, 101c Edge part 11d, 101d Frame part 12, 102 Medium cone 12a, 12b Blade body 50 Ceiling 51 Duct

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takahiro Koga 968 Kojima, Fuji, Shima-cho, Itoshima-gun, Fukuoka Air conditioning Giken Kogyo Co., Ltd. F-term (reference) 3L080 BA01 BB01 BE05

Claims (3)

[Claims] An opening area having a rectangular or rectangular opening cross section, wherein an air conditioning gas is supplied from one end side and the gas is blown out from the other end side into a space to be air-conditioned. An opening frame formed with an outer cone portion that expands from one end to the other end, and an opening frame that is disposed in an opening area of the opening frame and is formed in a rectangular or square expansion shape. In a multilayer cone-type outlet device including a middle cone made of one or more blade bodies, the blade body of the middle cone is bent inward at both side positions separated by a predetermined distance from a corner portion where surfaces intersect. The bent portion is formed with a corner inclined surface substantially coinciding with a shape obtained by chamfering the corner portion, and the center position and the expanding direction of the blade body are defined as the center position and the expanding direction of the outer cone portion of the opening frame. Match and set the edge of the blade body to the edge of the open frame Outlet device, characterized in that disposed in the opening region as parallel orientation. 2. The blow-off device according to claim 1, wherein the blade body of the middle cone has an octagonal opening cross-sectional shape obtained by cutting off each corner of a predetermined rectangle or square to a rectangular or rectangular opening cross-sectional shape. An outlet device characterized in that it has a gradually expanding shape. 3. The air outlet device according to claim 1, wherein the opening frame body stands upright at a predetermined length in the direction of the air conditioning target space at an end of the outer cone portion on the air conditioning target space side. An edge portion is formed, and the middle cone has at least an end position on the air conditioning target space side of the middle cone substantially coincident with a tip of the edge portion on the air conditioning target space side in the opening region of the opening frame. An outlet device, wherein the outlet device is provided so as to be adjustable in two ways: a position to be adjusted, and a position shifted from the position by an edge length in the direction opposite to the air-conditioning target space.