Air conditioner air outlet

Abstract

To suppress a draft airflow in front of a blowout port while maintaining an appropriate indoor environment, without decreasing an air conditioning capacity.SOLUTION: A blowout port 1 for air conditioning comprises a plurality of blowout opening parts 2 that blow out conditioned air into a room. Each blowout opening part 2 is provided with a hood 3 that rectifies the conditioned air having passed through the blowout opening part 2 downward. Since the conditioned air having passed through the blowout opening part 2 is rectified downward by the hood 3, draft airflow blown out in a substantially horizontal direction toward the front of the blowout port can be suppressed. At this time, since an air volume is not reduced or a wind direction is adjusted using movable blades, an air conditioning capacity does not decrease, and an appropriate indoor environment can be maintained.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an air conditioning outlet having a plurality of outlet openings for blowing conditioned air into a room, which suppresses draft airflow in front of a surface on which the outlet openings are provided. [Background technology]

[0002] Conventionally, a typical horizontal air-conditioning outlet is installed in front of an air conditioner and blows out conditioned air with regulated temperature and humidity in a substantially horizontal direction toward the front of the air conditioner. With this type of air-conditioning outlet, if there is a device or person in front of the air conditioner that dislikes draft airflow, some measure must be taken to suppress the draft airflow.

[0003] One example of such a measure is to reduce the air volume of the air conditioner. Another example of such a measure is to install movable blades at the air conditioner outlet to adjust the air direction, as disclosed in Patent Document 1 below. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2014-20706 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, a decrease in the airflow of an air conditioner directly leads to a decrease in the air conditioning capacity, and there is a risk that an appropriate indoor environment cannot be maintained. In addition, even if movable blades are installed as air outlets, the range of wind direction that can be adjusted is actually narrow, and there is an issue that sufficient effect cannot be obtained. In addition, when multiple air conditioners are installed side by side, the draft airflow in front of the air conditioners tends to become stronger due to the merging of the airflows.

[0006] Therefore, a main object of the present invention is to provide an air conditioning air outlet that can suppress draft airflow in front of the outlet while maintaining an appropriate indoor environment without reducing air conditioning capacity. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention according to claim 1 provides an air conditioning air outlet having a plurality of air outlet openings for blowing conditioned air into a room, The blow-out opening portion is provided at least in a direction in which the conditioned air is rectified, at a predetermined interval. Each air outlet is provided with a hood that directs the conditioned air that has passed through the air outlet in a certain direction. The hood is composed of a top plate and side plates that protrude vertically from the air outlet opening, and a fascia plate that is arranged parallel to and opposed to the opening surface of the air outlet opening at a distance. The hood defines a substantially rectangular box-shaped space on the outside that communicates with the air outlet opening, the top and sides of which are surrounded by the side plates and the fascia plate, respectively, and the bottom is open, and is provided to rectify the flow of the conditioned air that has passed through the air outlet opening in a downward direction. The present invention provides an air conditioning outlet characterized by the above features.

[0008] In the invention described in claim 1, A plurality of air outlet openings for blowing conditioned air into the room are provided at a predetermined interval at least along the direction in which the conditioned air is rectified, and a hood is provided at each air outlet opening to rectify the conditioned air that has passed through the air outlet opening in a certain direction. The hood is made up of a top plate and a side plate protruding vertically from the air outlet opening, and a fascia plate arranged parallel to and facing the opening face of the air outlet opening at a position spaced apart from the opening face of the air outlet opening, and forms a substantially rectangular box-shaped space on the outside communicating with the air outlet opening, the top and sides of which are surrounded by the side plates and the fascia plate, respectively, and the bottom is open, and is provided to rectify the conditioned air that has passed through the air outlet opening in a downward direction. The conditioned air that has passed through the outlet opening is Below direction Towards The draft airflow that is blown out in a roughly horizontal direction toward the front of the air outlet is suppressed. In this case, the air volume is not reduced and the air direction is not adjusted by the movable blades, so the air conditioning capacity is not reduced and an appropriate indoor environment can be maintained.

[0009] The hood changes the airflow blown out from the outlet opening to a direction approximately perpendicular to the outlet opening, thereby suppressing the airflow going straight out from the outlet opening and more reliably suppressing draft airflow toward equipment or people in front of the outlet.

[0010] Claim 2 The present invention relates to the hood. The valance is arranged so as to cover the entire blowing opening when viewed from the front of the air conditioning blowing outlet. At the same time, the lower end of the fascia board extends downward from the lower end of the air outlet opening. An air conditioning outlet according to claim 1 is provided.

[0011] In the invention described in claim 2, the hood is disposed so as to cover the entire blowing opening when viewed from the front of the air-conditioning blowing outlet. At the same time, the lower end of the fascia board extends downward from the lower end of the air outlet opening.Therefore, the hood suppresses the airflow blowing out from the air outlet opening toward the front of the air outlet, making it possible to more reliably suppress draft airflow toward devices or people in front of the air outlet.

[0012] Claim 3 The present invention provides an air-conditioning outlet according to claim 1, in which inter-hood side plates connecting the hoods are arranged on both sides between adjacent hoods in the direction of airflow straightened by the hoods.

[0013] The above claims 3 In the described invention, hood side panels that connect adjacent hoods are provided on both sides between the hoods in the direction straightened by the hood, making it easier for the airflow straightened by the hood to flow toward the adjacent hoods.

[0014] Claim 4 The present invention provides an air-conditioning outlet as described in claim 1, which is arranged on the front side of a floor-mounted air conditioner, or on a side of a chamber that protrudes into the room and is provided at the end of a supply duct to the room.

[0015] The above claims 4 The described invention gives examples of locations where the air conditioning outlet can be installed, such as the front of a floor-mounted, side-blow air conditioner, or the side of a chamber that protrudes into the room at the end of a supply duct to the room. Effect of the Invention

[0016] As described above in detail, according to the present invention, it is possible to suppress the draft airflow in front of the air outlet while maintaining an appropriate indoor environment without reducing the air conditioning capacity. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view of a side-blowout type air conditioner 30 equipped with an air-conditioning outlet 1 according to the present invention. [Diagram 2] FIG. 2 is a perspective view showing the front side of the air-conditioning outlet 1. [Diagram 3] It is a perspective view of the back side thereof. [Figure 4] Showing the air outlet 1 for air conditioning, (A) is a front view, (B) is a side view, and (C) is a top view. [Diagram 5] It is a view taken in the direction of the arrow along the line V-V in Fig. 4(A). [Figure 6] It is a view taken in the direction of the arrow along the line VI-VI in Fig. 4(A). [Figure 7] Showing the air flow of the conventional air outlet 50 for air conditioning, (A) is a plan view and (B) is a side view. [Figure 8] Showing the air flow of the air outlet 1 for air conditioning according to the present invention, (A) is a plan view and (B) is a side view. [Figure 9] It is an image of the visualized air flow taken in an actual machine. [Figure 10] It is an image of the air flow obtained by simulation. [Figure 11] It is a diagram of the average velocity distribution of the air flow in an actual machine. [Figure 12] It is a diagram of the average velocity distribution of the air flow obtained by simulation. [Figure 13] It is a plan view showing the measurement positions in the plane direction in the experiment. [Figure 14] It is a side view showing the measurement positions in the height direction in the experiment. [Figure 15] It is a diagram of the wind speed distribution at a separation distance of 1000 mm from the air outlet according to the comparative example. [Figure 16] It is a diagram of the wind speed distribution at a separation distance of 2000 mm from the air outlet according to the comparative example. [Figure 17] It is a diagram of the wind speed distribution at a separation distance of 1000 mm from the air outlet according to the example. [Figure 18] It is a diagram of the wind speed distribution at a separation distance of 2000 mm from the air outlet according to the example. [Figure 19] Showing the air outlet 1 of the supply duct according to another embodiment, (A) is a plan view and (B) is a cross-sectional view. [Figure 20]1A and 1B show an air outlet 12 of a supply duct according to a conventional example, in which (A) is a plan view and (B) is a cross-sectional view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0019] As shown in FIG. 1, the air conditioning outlet 1 of the present invention is disposed, for example, in front of a floor-mounted, side-blow air conditioner 30, and is for blowing out conditioned air, the temperature and humidity of which have been adjusted by the air conditioner 30, into a room.

[0020] A general-purpose air conditioner can be used without any particular restrictions as the air conditioner 30. The type of air conditioner 30 may be a floor-mounted type as in the illustrated example, or a wall-mounted type or ceiling-suspended type. The direction in which the conditioned air is blown out is also not particularly limited, and may be a side-blowing type as in the illustrated example, or an upward blowing type, downward blowing type, or the like.

[0021] In the illustrated example, the air conditioning outlet 1 is directly attached to the front surface of the air conditioner 30, but it may be attached to a chamber connected to the air conditioner 30 via a duct or the like.

[0022] 2 to 6, the air conditioning outlet 1 is a flat plate covering the front surface of the air conditioner 30, and is provided with a plurality of outlet openings 2, 2... for blowing out conditioned air into the room. The outer edge of this air conditioning outlet 1 is provided with a flange portion 1a that protrudes toward the air conditioner 30 and is used for fixing the outlet 1 to the front surface of the air conditioner 30.

[0023] The air-conditioning outlet 1 is provided at each outlet opening 2 with a hood 3 that rectifies the conditioned air that has passed through the outlet opening 2 in a fixed direction. In other words, the conditioned air that passes through the outlet opening 2 and is blown out in a straight direction toward the front of the air conditioner 30 has its airflow changed by the hood 3 provided on the outside of the outlet opening 2 to a direction approximately perpendicular to the straight direction, so that the airflow is rectified in a fixed direction. The air-conditioning outlet 1 in the illustrated example rectifies the airflow downward in the vertical direction.

[0024] The airflow will be described in more detail with reference to Figs. 7 and 8. In the conventional air conditioning outlet 50, as shown in Fig. 7, an airflow is formed in front of the air conditioner 30, which travels straight in a direction substantially perpendicular to the front surface of the air conditioner 30. This means that the draft airflow may excessively hit an apparatus or person X in front of the air conditioner 30, adversely affecting the apparatus or person X.

[0025] In contrast, in the air-conditioning outlet 1 according to the present invention, as shown in Fig. 8, the hood 3 rectifies the flow of the conditioned air that has passed through the outlet opening 2 in the downward direction and flows along the floor surface, thereby preventing the draft airflow from hitting the entire device or person X located in front of the air conditioner 30. Here, the principle by which the conditioned air that has passed through the outlet opening 2 is rectified in the downward direction is that, as shown in Fig. 8(B), the downward airflow blown out from the hood 3 arranged on the upper side abuts against the outer surface of the hood 3 adjacent in the downward direction and forms a vortex V on the front side of the hood 3. It is considered that the airflow flowing outside of the vortex V is attracted toward the outlet, making it easier to form a downward airflow along the front surface of the outlet.

[0026] As a result of verifying by experiments and simulations what kind of airflow is actually formed, it was confirmed that the conditioned air blown out from the air conditioner 30 forms a downward airflow near the front surface of the air-conditioning outlet 1, and then flows along the floor surface, as shown in Figures 9 and 10. It was also confirmed by experiments and simulations that the average velocity distribution shown in Figures 11 and 12 tends to be large near the outlet and near the floor surface, and gradually decrease as it moves away from these.

[0027] The structure of the air-conditioning outlet 1 will be described in more detail below. The planar shape of the outlet opening 2 is formed in a narrow and elongated shape that is long in a predetermined direction, and specifically, is formed in a rectangular shape, oval shape, elliptical shape, or the like that is long in a direction perpendicular to the direction in which the conditioned air is rectified by the hood 3. In the illustrated example, it is formed in a rectangular shape that is long in the width direction perpendicular to the up-down direction in which the conditioned air is rectified. The multiple outlet openings 2 are all formed in the same shape and dimensions.

[0028] The blow-out openings 2 only need to be provided at a predetermined interval in a direction in which the conditioned air is rectified, and do not necessarily have to be provided at a plurality of openings in a direction perpendicular to the direction. By providing a plurality of blow-out openings 2 in the direction in which the conditioned air is rectified, the above-mentioned vortex V is formed on the outer surface of the hood 3, and an airflow is formed along the front surface of the blow-out opening. In the illustrated example, a plurality of blow-out openings 2 are arranged at a predetermined interval in the vertical direction in which the conditioned air is rectified, and a plurality of blow-out openings 2 are also arranged at a predetermined interval in the width direction perpendicular to the vertical direction. More specifically, the blow-out openings 2 are formed at a total of 16 openings 2 by arranging eight openings 2 at a predetermined interval in the vertical direction in two rows in the width direction.

[0029] The hood 3 covering the outside of the blow-out opening 2 is disposed so as to cover the entire blow-out opening 2 in a front view of the air-conditioning outlet 1 shown in Fig. 4(A). In other words, when the outer surface of the air-conditioning outlet 1 is viewed from the front, the entire blow-out opening 2 is covered by the hood 3, and the blow-out opening 2 is not visible from the front. As a result, the conditioned air traveling straight, perpendicular to the opening surface of the blow-out opening 2, always comes into contact with the hood 3, and the hood 3 reliably changes the direction of the airflow.

[0030] The hood 3 is provided so as to change the airflow of the conditioned air, which passes through the outlet opening 2 and travels straight perpendicular to the opening surface of the outlet opening 2, to a substantially right angle. This reliably suppresses the airflow traveling straight forward from the outlet opening 2, and more reliably suppresses draft airflow toward devices and person X located in front of the air conditioner.

[0031] 5 and 6 in detail, the hood 3 is composed of a top plate 4 and side plates 5, 5 that protrude from the outer edge of the outlet opening 2 or its vicinity almost perpendicular to the front plate of the air-conditioning outlet 1, and a fascia plate 6 that faces the outlet opening 2 at a position spaced apart from the outlet opening 2, and forms a roughly rectangular box-shaped space on the outside that communicates with the outlet opening 2, the top and sides of which are surrounded by the top plate 4, side plates 5 and fascia plate 6, respectively, and the bottom is open. As a result, the conditioned air that passes through the outlet opening 2 and flows into the hood 3 flows toward the open downward side.

[0032] The top plate 4 and side plate 5 protrude almost perpendicularly to the opening surface of the air outlet 2 (the front plate of the air-conditioning outlet 1), and extend almost straight in the vertical direction without bending or inclining in the middle of the protruding direction. Therefore, the top plate 4 and side plate 5 do not change the direction of the airflow of the conditioned air blown out from the air outlet 2, and the airflow proceeds almost straight to the fascia plate 6 facing the air outlet 2.

[0033] The flapboard 6 is connected to the protruding side ends of the top plate 4 and the side plates 5 almost perpendicularly, and is disposed facing and almost parallel to the opening surface of the air outlet 2 (the front plate of the air-conditioning outlet 1). The conditioned air blown out from the air outlet 2 travels straight and comes into contact with the flapboard 6, changing the airflow in a perpendicular direction.

[0034] As shown in FIG. 4(A), the fascia 6 has a shape larger than the planar shape of the blow-out opening 2. The fascia 6 is formed with a dimension longer than the dimension of the blow-out opening 2 in the direction in which the airflow is straightened. That is, when the airflow is straightened downward as in the illustrated example, the lower end of the fascia 6 extends downward from the lower end of the blow-out opening 2. This prevents the airflow that travels straight from the blow-out opening 2 perpendicular to the opening surface from continuing straight, but reliably abuts against the fascia 6, thereby changing the airflow direction. In addition, the airflow that flows downward from the adjacent blow-out opening 2 immediately above easily forms a vortex V on the outer surface side of the fascia 6, and the airflow flowing outside of the vortex V is easily attracted to the blow-out opening. The length of the fascia 6 in the airflow straightening direction is preferably 1.2 times or more, more preferably 1.5 to 3 times, and particularly preferably 1.5 to 2 times, the length of the blow-out opening 2 in the airflow straightening direction.

[0035] The corners between the top panel 4 and the skirting board 6 and the corners between the side panels 5 and the skirting board 6 may be slightly rounded, but it is preferable that they are connected at approximately right angles. By forming these corners at approximately right angles, the airflow that travels straight from the air outlet 2 and comes into contact with the skirting board 6 is more likely to change to a right angle thereafter. When rounding these corners, the radius should be 1 / 2 or less, preferably 1 / 10 or less, of the length that the top panel 4 and the side panels 5 protrude from the air outlet 2.

[0036] As shown in Fig. 2 and Fig. 4, it is preferable to dispose the inter-hood side plates 7 connecting the hoods 3, 3 on both sides between the hoods 3, 3 adjacent to each other in the direction of the airflow straightened by the hood 3, because this makes it easier for the airflow straightened by the hood 3 to flow toward the adjacent hood 3. In the illustrated example, the inter-hood side plates 7 are provided between the hoods 3, 3 adjacent to each other in the vertical direction. The inter-hood side plates 7 connect the side plates 5 of the adjacent hoods 3, 3, and are formed to be approximately equal in width to the side plates 5 of the hoods 3 (their protruding lengths from the front plate of the air-conditioning outlet 1 are approximately the same). It is preferable to similarly provide the inter-hood side plates 7 from the lowest hood 3 to the lower end of the air-conditioning outlet 1. The front side between these inter-hood side plates 7, 7 is open. EXAMPLES

[0037] An experiment was conducted to measure the draft airflow in front of the air conditioner 30 for a case in which a conventional air conditioning outlet 50 was provided as an air conditioning outlet attached to the front of the air conditioner 30 (comparative example) and a case in which the air conditioning outlet 1 according to the present invention was provided (example).

[0038] As shown in FIG. 13, a conventional air-conditioning air outlet 50 had air direction guide plates 51 built in on both sides facing outward at an angle of 45° to the air outlet direction, over almost the entire length in the height direction, in order to suppress draft airflow in the front.

[0039] In the experiment, as shown in the plan view of Fig. 13 and the elevation view of Fig. 14, a mesh was formed in the width direction and height direction at distances of 1000mm and 2000mm from the front of the air-conditioning outlet, and the wind speed at each intersection was measured with an anemometer. The numbers in the circles in the plan view indicate the number of the measurement position. The air volume of the air conditioner 30 was 9000m 3 / h.

[0040] The measurement results are shown in Figures 15 to 18. In the conventional air-conditioning air outlet 50, at a separation distance of 1000 mm, as shown in Figure 15, the wind speed is high (0.5 m / s or more) at the position guided by the airflow direction guide plate 51 over the entire height direction, and a draft airflow occurs in this region. Also, as shown in Figure 16, even at a separation distance of 2000 mm, there is a region where the wind speed is high in the direction guided by the airflow direction guide plate 51.

[0041] In contrast, in the air-conditioning outlet 1 of the present invention, as shown in Figures 17 and 18, whether the separation distance is 1000 mm or 2000 mm, the wind speed is small (less than 0.5 m / s) except at a measurement height of 500 mm, and the draft airflow above a height of 500 mm is suppressed.

[0042] [Other examples] (1) In the above embodiment, the air conditioning outlet 1 is disposed on the front of a floor-mounted air conditioner, but as shown in Fig. 19, it may be disposed on the side of a chamber 11 that protrudes into the room and is provided at the end of a supply duct 10 to the room. This reduces the planar dimensions compared to a typical air outlet 52 of a supply duct 10, as shown in Fig. 20, and allows for a wider range of options for selecting the size of the duct. The air conditioning outlets 1 are provided on each side of the chamber 11, and are converted into a downward airflow by a hood 3 that covers the air outlet opening 2.

[0043] (2) The air conditioning outlet 1 of the present invention can also be applied to a displacement air conditioning system in which conditioned air supplied from an air conditioner 30 is supplied to a predetermined height range from the floor of the room to be air conditioned, and exhausted from the ceiling surface of the room to be air conditioned or in the vicinity thereof.

[0044] (3) In the above embodiment, the air conditioning outlet 1 is attached to the front of the side-blow type air conditioner 30 to straighten the airflow blown out in front of the air conditioner 30 in a downward direction, but the direction of the hood 3 may be changed to straighten the airflow blown out in front of the air conditioner 30 in an upward or sideways direction. Similarly, the air conditioning outlet 1 may be provided for an upward or downward blow type air conditioner or chamber to straighten the airflow in a direction perpendicular to the air conditioning outlet 1. [Explanation of symbols]

[0045] 1...air conditioning outlet, 2...air outlet opening, 3...hood, 4...top plate, 5...side plate, 6...front plate, 7...side plate between hoods, 10...supply duct, 11...chamber

Claims

1. An air conditioning outlet having a plurality of outlet openings for blowing conditioned air into a room, The blow-out opening portion is provided at least in a direction in which the conditioned air is rectified, at a predetermined interval. An air-conditioning outlet characterized in that each air-conditioning opening is provided with a hood that straightens the conditioned air that has passed through the air-conditioning opening in a certain direction, and the hood consists of a top plate and a side plate that protrude vertically from the air-conditioning opening, and a fascia plate that is arranged parallel to and facing the opening surface of the air-conditioning opening at a distance from the opening surface of the air-conditioning opening, and forms an approximately rectangular box-shaped space on the outside that communicates with the air-conditioning opening, with the top and sides surrounded by the side plates and the fascia plate, respectively, and the bottom being open, and is configured to straighten the conditioned air that has passed through the air-conditioning opening in a downward direction.

2. The air conditioning outlet according to claim 1, wherein the hood's fascia is arranged so as to cover the entire blow-out opening when viewed from the front of the air conditioning outlet, and the lower end of the fascia extends downward beyond the lower end of the blow-out opening.

3. 2. The air-conditioning outlet according to claim 1, further comprising inter-hood side plates arranged on both sides between adjacent hoods in the direction of airflow straightened by the hoods to connect the hoods to each other.

4. 2. The air conditioning outlet according to claim 1, wherein the air conditioning outlet is disposed on a front surface of a floor-mounted air conditioner, or on a side surface of a chamber that protrudes into the room and is provided at the end of a supply duct to the room.

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