Air conditioning system

Abstract

To provide an air conditioning system capable of efficiently releasing heat of a window.SOLUTION: An air conditioning system comprises an air supply part which is installed in a building and which supplies air, and a flap part which is positioned below a window of the building, which is installed to come into contact with the air supplied by the air supply part and which extends in a direction crossing a vertical direction. The flap part changes an air flow direction, and circulates the air along a surface of the window.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an air conditioning system. [Background technology]

[0002] BACKGROUND ART As a conventional technique, an air conditioning system that sends air into a room is known (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-330269 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventionally, even if air was sent from below the window, the airflow would not follow the window all the way to the intake port in the ceiling, and would separate from the window along the way, making it impossible to efficiently remove heat from the window. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention provides an air conditioning system comprising an air supply unit that is installed in a building and supplies air, and a flap unit that is located below a window of the building and is installed so as to come into contact with the air sent by the air supply unit and extends in a direction intersecting the up-and-down direction, wherein the flap unit changes the direction of the air flow and circulates the air along the surface of the window. [Effects of the Invention]

[0006] According to the present invention, heat from a window can be efficiently removed. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is an explanatory diagram showing the configuration of a building equipped with an air conditioning system according to an embodiment. [Figure 2] 1 is a perspective view showing an outline of an air conditioning system according to an embodiment. [Figure 3] 1 is a cross-sectional view of a duct in an embodiment as viewed in the left-right direction, the cross-section being formed by a vertical plane perpendicular to the left-right direction. [Figure 4] (a) is a cross-sectional view of a duct in Modification 1 viewed in the left-right direction, and (b) is a cross-sectional view of a duct in Modification 2 viewed in the left-right direction. Both cross-sectional views are formed by a vertical plane perpendicular to the left-right direction. [Figure 5] (a) A cross-sectional view of a duct in another modified example as viewed in the left-right direction, and (b) A cross-sectional view of a duct in another modified example as viewed in the left-right direction. In both cross-sectional views, the cross section is formed by a vertical plane perpendicular to the left-right direction. DETAILED DESCRIPTION OF THE INVENTION

[0008] <Embodiment> A building B equipped with an air conditioning system according to one embodiment will be described below. As shown in Fig. 1, the building B includes flat windows W that form the outer skin of the building B in the perimeter, a ceiling C provided above the windows W, and an interior floor FL.

[0009] In the following explanation, the up-down direction and the left-right direction perpendicular to the up-down direction will be defined and used in accordance with the shape of building B and the direction of gravity as shown in Figures 1 and 2. The left-right direction is based on the viewpoint when looking outside from inside building B, and is set along the direction in which window W extends. The inside and outside directions are also defined in accordance with the shape of building B.

[0010] Building B also has a fan F1 installed on the ceiling C, an air supply fan F2 installed below the window W, a duct D that circulates the air sent from the air supply fan F2 inside the building, and a cylindrical duct CL connected to duct D. An air supply port S is installed above the cylindrical duct CL on the floor FL, and an exhaust port EX is installed on the ceiling C below the fan F1.

[0011] In the perimeter of building B, a so-called air barrier type air conditioning system is implemented, which creates an air current that flows upward along the window W, as shown by the white dotted arrows in Figures 1 and 2, and expels heat from the window W upward using a fan F1.

[0012] Specifically, fan F1 can draw air into the room from below through exhaust port EX, an opening installed in ceiling C. Meanwhile, supply fan F2 can send air into the room through duct D and cylindrical duct CL. Duct D and cylindrical duct CL are hollow members that connect intake port S, which forms an opening, to supply fan F2, allowing air to circulate inside. A flexible duct (not shown) is interposed at the connection between duct D and cylindrical duct CL, allowing rotation of cylindrical duct CL (described below) while maintaining the distance between intake port S and floor FL.

[0013] Air intake port S is an opening that extends horizontally below window W and along the window W. Air intake port S can send air that has passed through duct D and cylindrical duct CL upward toward the window W. Louvers 6 are installed in air intake port S, making it possible to adjust the direction of the airflow. A flexible duct (not shown) is interposed at the connection between air intake port S and floor FL, which allows rotation of cylindrical duct CL (described below) while maintaining the connection between air intake port S and floor FL.

[0014] The cylindrical duct CL is a hollow duct formed in a roughly cylindrical shape extending in the left-right direction and located below the air intake port S. The cylindrical duct CL is a duct that extends horizontally along the window W, and inside it forms an air passage 3 that is roughly annular when viewed in the left-right direction.

[0015] The cylindrical duct CL has an axis 11 that extends horizontally and in the left-right direction, and is equipped with a columnar portion 1 formed in a cylindrical shape, an outer shell portion 2 that surrounds the columnar portion 1, and a flat partition wall 4 that extends up, down, left, and right and connects the columnar portion 1 to the floor FL. The cylindrical duct CL and the air intake port S are rotatable around the axis 11.

[0016] The pillar-shaped part 1 is installed on the outdoor side of the duct D, and is arranged so that the air sent from the duct D hits the indoor side surface of the pillar-shaped part 1.

[0017] The outer shell 2 is a plate-like member formed at a fixed distance from the outer peripheral surface of the columnar portion 1 when viewed in the left-right direction, and is formed in a substantially arc-like shape when viewed in the left-right direction. The outer shell 2 also extends in the left-right direction, expanding to cover the interior side of the columnar portion 1. The center of curvature of the outer shell 2 substantially coincides with the axis 11.

[0018] The air passage 3 is formed between the columnar portion 1 and the outer shell portion 2. As shown in Fig. 2, the air passage 3 is formed so as to extend to the left and right on the indoor side of the columnar portion 1. The air passage 3 is also formed so as to go around the periphery of the columnar portion 1 when viewed in the left-right direction.

[0019] The columnar section 1 is provided with a flap section 12 having an outer peripheral surface that comes into contact with the air moving through the air passage 3. When viewed from the left to right, the outer peripheral section of the flap section 12 is formed in an arc shape centered on the axis 11. The flap section 12 extends in a direction intersecting the up-down direction, and is formed so as to be convex toward the window side (outside the room) and downward, so as to protrude in the direction of movement of the air that flows through the air passage 3 and comes into contact with the flap section 12. The columnar section 1 may also be formed in a cylindrical shape.

[0020] The air flow during air conditioning will be explained below. During air conditioning, air sent from duct D into cylindrical duct CL collides with columnar portion 1 and partition wall 4, spreading left and right, and forming a flow to the left and right along air passage 3 (Fig. 2). At the same time, the air is guided by outer shell portion 2 and moves around the outer periphery of columnar portion 1 when viewed left and right (Fig. 3). As indicated by the white dotted arrows in each figure, such as Fig. 3, inside cylindrical duct CL, air moves along the side of columnar portion 1.

[0021] The air is further guided along air passage 3 and changes direction upward along the cylindrical shape of columnar portion 1. At this time, at least a portion of the air moves by adhering to the outer circumferential surface of flap portion 12 due to the viscosity of the air itself, due to the influence of the Coanda effect and the like, and changes direction upward along the arc-shaped shape of flap portion 12.

[0022] The air discharged from the cylindrical duct CL passes through the air intake port S and moves upward along the surface of the window W. The air moves while cooling the surface of the window W, and is then sucked in by the fan F1. In this way, the movement of air in the perimeter, the area near the window W, discharges heat near the window W to the outside, reducing the heat load inside the room.

[0023] The cylindrical duct CL can adjust the direction of the airflow sent to the window W by rotating around the axis 11. The cylindrical duct CL can direct the airflow to the window W at an optimal angle depending on the environment inside and outside the building B.

[0024] <Variation 1> As a first modification, a duct CL1 may be used instead of the cylindrical duct CL, as shown in Fig. 4(a) In the following, the same components as those in the embodiment are given the same reference numerals, and the description thereof will be omitted.

[0025] The duct CL1 includes a columnar portion 1 having a cylindrical shape extending in the left-right direction, and an outer shell portion 102 that surrounds the indoor side and the lower side of the columnar portion 1. The air passage 3 is formed between the columnar portion 1 and the outer shell portion 102.

[0026] The outer shell 102 is a plate-like member that extends substantially horizontally and is formed at a fixed distance from the side surface of the columnar part 1 when viewed in the left-right direction, and is disposed so as to cover the lower part of the columnar part 1.

[0027] The outer shell portion 102 is formed below the columnar portion 1, but unlike the outer shell portion 2, it is not formed on the side window side of the columnar portion 1, that is, on the outdoor side.

[0028] Even in this case, the air moving inside the duct CL1 moves by adhering to the outer surface of the flap portion 12 due to the viscosity of the air itself, due to the influence of the Coanda effect and the like, and changes its direction of movement upward along the shape of the flap portion 12, which is formed in an arc shape.

[0029] The air discharged from the duct CL1 passes through the air intake S and then moves upward along the surface of the window W. The air moves while cooling the surface of the window W, and is then sucked in by the fan F1. In this way, the movement of air in the perimeter, which is the area near the window W, can discharge heat near the window W and reduce the thermal load inside the room.

[0030] <Variation 2> 4(b), a duct CL2 may be used instead of the cylindrical duct CL. In the following, the same reference numerals are used to designate the same components as those in the embodiment or the modified examples, and the description thereof will be omitted.

[0031] The duct CL2 includes a flap portion 101 formed in a plate shape and an outer shell portion 2 surrounding the flap portion 101. The air passage 3 is formed between the flap portion 101 and the outer shell portion 2. As shown in FIG. 4(b), the flap portion 101 is disposed below the window W, extending obliquely so as to intersect with the up-down direction in a side view. The flap portion 101 has an outer peripheral surface 101A formed in an arc shape when viewed left to right. The outer peripheral surface 101A forms a smooth curve when viewed left to right.

[0032] The outer peripheral surface 101A may be formed in an arc shape when viewed from the left to right, or in the shape of a functional curve such as an elliptical curve, a quadratic curve, or a cubic curve. Furthermore, the outer peripheral surface 101A may have a shape similar to the upper surface of an airplane wing, for example, to facilitate air guidance.

[0033] Outer peripheral surface 101A is formed so as to come into contact with the moving air and to protrude in the direction of the air movement, i.e., so as to face the window side (outside the room) and to be convex downward when viewed from the left and right. The air moving through duct CL2 moves by adhering to outer peripheral surface 101A due to the viscosity of the air itself, influenced by the Coanda effect and the like, and changes its movement direction upward along the arc-shaped shape of outer peripheral surface 101A.

[0034] The air discharged from the duct CL2 moves upward through the air intake S, and then moves upward along the surface of the window W. The air moves while cooling the surface of the window W, and is then sucked in by the fan F1. In this way, the movement of air in the perimeter, which is the area near the window W, can discharge heat near the window W and reduce the thermal load inside the room.

[0035] <Other variations> As shown as a duct CL3 in FIG. 5(a), the upper part of the outer circumferential surface 201A may be inclined when viewed in the left-right direction.

[0036] More specifically, the duct CL3 includes a plate-like flap portion 201 having an outer peripheral surface 201A, and an outer shell portion 2. The air passage 3 is formed between the flap portion 201 and the outer shell portion 2.

[0037] 5(a), the upper part of the outer peripheral surface 201A does not extend vertically, but is inclined upward so as to face the window W. In this case, the air flowing out of the duct CL3 flows upward and also forms a flow toward the window W, and after being discharged from the duct CL3, it is likely to flow to the exhaust port EX without separating from the window W.

[0038] 5(b) shows a duct CL4 having a flap portion 301, a part of an outer peripheral surface 301A of the flap portion 301 may be formed in a flat shape. The shapes of the outer peripheral surfaces 101A, 201A, 301A are set appropriately depending on the amount, speed, etc. of the airflow.

[0039] 5(a) and 5(b), the upper ends of the flap portions 201 and 301 may be in contact with the floor FL to form the air passage 3 instead of the partition wall 4.

[0040] <Effects> (Aspect 1) The air conditioning systems of the above-described embodiments and modifications include an air supply fan F2 (corresponding to an air delivery unit) that is installed in building B and sends out air, and flap units 12, 101, 201, 301 that are located below a window W of building B and installed so as to come into contact with the air sent out by the air supply fan F2 and that extend in a direction intersecting the vertical direction. The flap units 12, 101, 201, 301 change the direction of the air flow and circulate the air along the surface of the window W.

[0041] In the above configuration, the flap portions 12, 101, 201, 301 adjust the air flow, and the air flow moves upward along the window W. Therefore, heat from the window W can be efficiently discharged.

[0042] (Embodiment 2) In embodiment 1, the flap portions 12, 101, 201, 301 have curved surfaces that protrude toward the air flow that contacts them, like the outer peripheral surfaces 101A, 201A, 301A.

[0043] In the above configuration, the air moves along the curved surface that protrudes toward the air flow, so that the direction of the air flow can be changed with a simple configuration, and the air can be circulated along the surface of the window W.

[0044] (Embodiment 3) In either embodiment 1 or 2, the outer periphery or outer periphery surface 101A, 201A of the flap portion 12 has a cross section formed in an arc shape.

[0045] In the above configuration, the direction of the airflow can be changed with a simple configuration, and the air can be circulated along the surface of the window W.

[0046] (Embodiment 4) In any of embodiments 1 to 3, the flap portions 12, 101, 201, 301 change the direction of the air flow by the Coanda effect.

[0047] In the above configuration, the direction of the airflow can be changed and adjusted with a simple configuration, and the air can be circulated along the surface of the window W. [Explanation of symbols]

[0048] Building B, window W, ceiling C, floor F, fan F1, supply fan F2 Duct CL, CL1, CL2, CL3, CL4 Column part 1, outer shell part 2, air duct 3 Flap parts 12, 101, 201, 301

Claims

1. an air supply unit installed in the building to supply air; a flap portion that is located below a window of the building, is installed so as to come into contact with the air sent by the air sending portion, and extends in a direction intersecting the up-down direction, The flap portion changes the direction of the air flow and causes the air to flow along the surface of the window. Air conditioning system.

2. The flap portion has a curved surface that protrudes toward the air flow that it comes into contact with. The air conditioning system of claim 1 .

3. The curved surface has a cross section formed in an arc shape.

3. The air conditioning system of claim 2.

4. The flap portion changes the direction of the air flow by the Coanda effect. An air conditioning system according to any one of claims 1 to 3.

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