JP2019108993A - Ventilation structure - Google Patents

Abstract

To provide a ventilation structure capable of performing temperature adjustment of a perimeter zone with a simple structure.SOLUTION: A ventilation structure (1) includes: an air duct (12) arranged along a ceiling (101); and a wind shielding plate (30) arranged between a tip opening part (12a) located at a tip of the air duct (12) and a building wall surface opposing to the tip opening part (12a), and for shielding the wind delivered from the tip opening part passing. The wind shielding plate (30) includes a wind guide surface for guiding the airflow delivered from the tip opening part (12a) to the lateral part direction of the air duct (12).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a blower structure, and more particularly to a blower structure having a blower duct arranged along a ceiling.

  The window area (perimeter zone) in buildings such as office buildings and public facilities receives a large heat load due to ambient temperature or solar radiation, and it is hot in summer and cold in winter. Therefore, in the perimeter zone, it is difficult to control the temperature in a general air conditioner.

  In order to improve the environment of such a perimeter zone, a breeze line for sending a wind from the outlet of the elongated opening toward the perimeter zone, an air flow system for letting air flow between two sheets of glass, etc. are known .

  For example, Japanese Patent Application Laid-Open No. 2002-227328 (Patent Document 1) provides a blind between two sheets of glass, takes in air in the indoor space from the lower part, passes between the two sheets of glass, and passes it from the upper part An air flow system for exhausting is disclosed.

JP 2002-227328 A

  Although the above-mentioned equipment of the breeze line and the air flow system can improve the environment of the perimeter zone, it requires expensive and large-scale equipment. Further, in the breeze line, since only the width of the blowout can be sent, a length corresponding to the extension length of the window is required.

The present invention has been made to solve the problems as described above, and it is an object of the present invention to provide a blower structure capable of adjusting the temperature of the perimeter zone with a simple configuration. .

  A blower structure according to one aspect of the present invention is located between a blower duct arranged along a ceiling and a tip opening located at the tip of the blower duct and a wall surface of a building facing the tip opening, And a wind shield plate for blocking the passage of the wind sent from the opening, the wind shield including a wind guiding surface for guiding the flow of the air sent from the tip opening toward the side of the air duct.

  Preferably, the wind guiding surface includes a first wind guiding surface for guiding the flow of air delivered from the tip opening toward one side of the air duct, and the other side of the flow of air delivered from the tip opening. And a second wind guide surface for guiding in the partial direction.

  Preferably, the wind guiding surface has a base point closest to the tip opening and a remote point furthest from the tip opening as viewed from the ceiling, and a region of the wind guiding surface from the base to the remote point is a base point Is a circular arc surface bulging toward the wall surface with respect to a virtual straight line connecting the point and the remote point.

  Preferably, the wind guiding surface further has a tip point located beyond the remote point as viewed from the ceiling, and the area from the base point to the tip point via the remote point is continuous in a continuous arc surface The shortest distance from the tip opening to the tip of the wind guiding surface is shorter than the shortest distance from the tip opening to the remote point of the wind guiding surface.

  Preferably, the wind shield is connected and fixed to the tip opening of the air duct.

  Preferably, the windshield is suspended and fixed to the ceiling.

  Preferably, in front view of the tip opening, the length in the left-right direction of the wind shield plate is smaller than the length in the left-right direction of the tip opening, and the height of the wind shield is smaller than the height of the tip opening .

  Preferably, the air flow duct has a plurality of air flow openings spaced along the air flow direction, the air flow ducts are arranged along the ceiling, and the air flow ducts are spaced apart. It is provided to extend in the same direction.

  According to the present invention, it is possible to provide a blower structure capable of adjusting the temperature of the perimeter zone with a simple configuration.

It is sectional drawing which shows the outline | summary structure of the ventilation structure which concerns on embodiment of this invention. It is a top view which shows the outline | summary structure of the ventilation structure which concerns on embodiment of this invention. It is the figure which looked at the blowing structure concerning the embodiment of the present invention from the bottom. It is a figure which shows a mode that air is blowing off to the perimeter zone via the ventilation structure which concerns on embodiment of this invention. It is a figure which shows a mode that the general | schematic structure of the ventilation structure which concerns on embodiment of this invention is provided in the office. It is a perspective view taking out and showing a wind shield board. It is a top view of a windshield. It is a front view of a windshield. It is a front view which shows the state which the wind shielding board has covered the front-end | tip opening part of the air flow duct. It is a schematic cross section along the XX line of FIG. It is a schematic diagram which shows the flow of the air of a ventilation duct. It is a schematic diagram which shows the flow of the air of several ventilation ducts.

Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference characters and description thereof will not be repeated.

(About the outline of the blast structure)
A blower structure 1 according to an embodiment of the present invention will be described with reference to the attached drawings.

  The blower structure 1 according to the present embodiment is installed, for example, in an office building or a building such as a public facility. The air blowing structure 1 includes an air conditioning unit 10 disposed along a ceiling 101, and a wind shielding plate 30 located between the air conditioning unit 10 and a wall surface of a building. The wind shield plate 30 will be described later.

(About air conditioning department)
First, air-conditioning unit 10 according to the present embodiment will be described with reference to FIGS. 1 to 5. In FIG. 1, the direction indicated by the arrow A1 is referred to as the up and down direction, and the direction indicated by the arrow A2 is referred to as the left and right direction. Arrows in the air conditioning unit 10 in FIGS. 2, 3 and 4 indicate the flow of air.

  Referring to FIG. 1 in particular, air conditioning unit 10 is disposed, for example, on ceiling 101 of room 102, and is disposed along air conditioner 11 having air outlet 11a (FIG. 4) and ceiling 101. The air duct 12 is provided to guide the air sent out from the air outlet 11a (FIG. 4) of 11 and send the air into the room 102.

  With particular reference to FIG. 2, the chamber 102 includes a first wall 103 and a second wall 105 disposed to face each other. The first wall portion 103 is provided with, for example, a plurality of windows 104. In the room 102, for example, a plurality of desks 106, a plurality of sets of chairs 107, a bookcase 108 and the like are disposed as in a general office or the like.

  In the present embodiment, the air conditioner 11 can use a common air conditioner, and is used, for example, for a ceiling cassette type air conditioner, a ceiling cassette type air cleaner, and the like.

  A plurality of air ducts 12 are arranged along the ceiling 101. The air duct 12 is formed to extend from the vicinity of the first wall portion 103 to the vicinity of the second wall portion 105. The plurality of air ducts 12 are provided to extend in the same direction at intervals. Specifically, the plurality of air ducts 12 extend orthogonal to the first wall 103 and the second wall 105. The plurality of air ducts 12 are disposed in parallel, for example, at intervals of 6 to 8 m. The air blowing direction of the air blowing duct 12 is the direction in which the air blowing duct 12 extends, and is the direction illustrated by the arrow A3 in FIGS.

  The air duct 12 has, for example, a side 13 and a bottom 14. In the side portion 13 of the air duct 12, an air blowing opening 15 for sending out the air sent out from the air outlet 11a toward the room 102 is formed. Specifically, the blower opening portion 15 delivers the air sent out from the blower outlet 11 a in a direction substantially orthogonal to the blower direction, that is, toward the space between the adjacent blower ducts 12. In addition, the air sent out from the ventilation opening 15 is sent out horizontally along the ceiling 101. Further, a plurality of air blowing openings 15 are provided at intervals along the air blowing direction of the air blowing duct 12.

  With particular reference to FIG. 4, in the present embodiment, air blower duct 12 is provided with an air inlet 12 b near the air outlet 11 a for sucking in the air sent out from the air outlet 11 a. The suction port 12b is formed, for example, in a mesh shape. In the present embodiment, the suction port 12b is formed in a mesh shape, but is not limited to this. For example, the suction port 12b has a desired flow coefficient and opening area as described below. What is necessary.

  In the present embodiment, when the flow coefficient at the suction port 12 b is α, the flow coefficient α satisfies αα0.5.

  In the present embodiment, when the opening area at the suction port 12 b is B and the effective area is αA, the value αA / B of the effective area αA with respect to the opening area B satisfies αA / B ≧ 0.4.

  In the present embodiment, in order to prevent condensation from being generated near the back surface of the ceiling 101 or the upper surface inside the air flow duct 12, a plastic resin is attached to the upper surface inside the air flow duct 12 (not shown) . More specifically, a polystyrene resin is attached to the upper surface inside the air duct 12. The polystyrene resin preferably has a thickness of 15 mm or more.

  The window area (perimeter zone) near the first wall 103 receives, for example, direct sunlight, and therefore has a large heat load. Therefore, in the present embodiment, air (for example, cold air) is sent from the tip opening 12 a of the air flow duct 12 toward the first wall 103 and the window 104. For example, the front end opening 12a may have a rectangular shape in a front view. A wind shield plate 30 described later is provided between the tip end opening 12 a and the first wall portion 103. Thereby, the air from the blower duct 12 can be preferentially sent to the perimeter zone, and the heat treatment can be efficiently performed in the perimeter zone.

  In the present embodiment, bottom portion 14 of air duct 12 is formed in a flat shape, but is not limited to this. For example, bottom portion 14 of air duct 12 may be formed in an arc shape . In the present embodiment, to reduce the temperature difference between the upper and lower portions of the air conditioning unit 10 by heat dissipation from the bottom 14 of the air duct 12 (see the arrow shown by the broken line in the bottom 14 of the air duct 12 in FIG. 3). To contribute.

  As shown in FIG. 5, the air duct 12 is disposed immediately above the partition shelf 109 of the room 102. As a result, the air sent out from the air blowing opening 15 of the air blowing duct 12 does not directly reach the vicinity of the occupant of the room 102, but the residence of a position away from the air blowing duct 12 via the partition shelf 109 of the room 102. Will be delivered to the person as a comfortable fine air stream.

(About the wind shield board)
Next, the wind shield plate 30 will be described with reference to FIGS. 6 to 9.

  The wind shield plate 30 of the present embodiment is located between the end opening 12a located at the end of the air duct 12 and the first wall 103 of the building facing the end opening 12a, and from the end opening 12a I block the passage of the wind sent out. That is, the wind shield plate 30 is not attached in the air duct 12, but is attached between the tip opening 12 a and the first wall 103. Specifically, the wind shield plate 30 is directly attached to the tip end opening 12a. The wind shield plate 30 is located at a midway position where the air is sent out from the tip end opening 12 a toward the first wall portion 103. In this respect, the wind shield plate 30 differs from the conventional louver. The wind shield plate 30 may be provided between the second wall 105 and the distal end opening 12 a.

  The wind shield plate 30 is, for example, a thin plate, and is formed of a rigid member. Examples of the material having rigidity include metals, wood, plastics, and stone materials, and are preferably made of at least one material selected from the group consisting of metals, wood and plastics, and more preferably made of metal.

  For example, the wind shield plate 30 guides the flow of the air sent out from the tip end opening 12 a to one side direction of the air duct 12, and the connection fixing portion 33 connected and fixed to the tip end opening 12 a of the air duct 12. It has a first wind guiding surface 31 and a second wind guiding surface 32 for guiding the flow of air sent out from the tip opening 12a in the direction of the other side. In FIGS. 7 and 8, the direction indicated by the arrow is one, and the opposite direction of the arrow is the other.

  The connection fixing portion 33 is provided between the first wind guiding surface 31 and the second wind guiding surface 32. That is, the connection fixing portion 33 plays a role of connecting the first wind guiding surface 31 and the second wind guiding surface 32. For example, two through holes through which a connector such as a screw penetrates may be arranged side by side in the vertical direction in the connection fixing portion 33. As shown in FIG. 6, the distal end opening 12a connects the upper end and the lower end of the distal end opening 12a, and includes a plate member 120 extending in the vertical direction. The plate-like member 120 is positioned at a substantially horizontal center of the tip end opening 12a. The connection fixing portion 33 is connected to the plate member 120.

  The first wind guiding surface 31 and the second wind guiding surface 32 are formed in left-right symmetry, for example, with the connection fixing portion 33 as a boundary. In addition, although the connection fixing | fixed part 33, the 1st wind guide surface 31, and the 2nd wind guide surface 32 may be integrally molded, you may be provided separately. When the first wind guiding surface 31 and the second wind guiding surface 32 are provided separately, the connection fixing portion 33 is provided at the first wind guiding surface 31 and the second wind guiding surface 32 described later on base points 31 a and 32 a respectively. When attaching to the plate-like member 120, it may overlap.

  With particular reference to FIG. 7, the first wind guide surface 31 is a circular arc surface having a generally sector shape in plan view. Specifically, the first wind guiding surface 31 has a base point 31a closest to the tip end opening 12a and a remote point 31b farthest from the tip end opening 12a as viewed from the ceiling. The region of the first wind guiding surface 31 from the base point 31a to the remote point 31b is an arc surface bulging toward the first wall portion 103 with respect to an imaginary straight line 31d connecting the base point 31a and the remote point 31b. . In other words, the curve drawn by the first wind guiding surface 31 in a plan view is a circle having a circle centered on the point where the tip opening 12a intersects with the line vertically lowered from the remote point 31b toward the tip opening 12a. It is a part of Zhou.

  Furthermore, the first wind guiding surface 31 may further have a tip point 31c located beyond the remote point 31b when viewed from the ceiling. The area from the base point 31a to the tip point 31c via the remote point 31b is continuous with a continuous arc surface. Further, the shortest distance L1 from the distal end opening 12a to the distal end point 31c is shorter than the shortest distance L2 from the distal end opening 12a to the remote point 31b. That is, the arc surface connecting the remote point 31b to the tip point 31c is the return portion 34 extending from the remote point 31b toward the tip opening 12a. As a result, it is possible to cause the return portion 34 to retain a part of the air that is delivered from the tip end opening 12 a and hits the first wind guiding surface 31.

  As described above, the second wind guiding surfaces 32 are provided symmetrically about the connection fixing portion 33 in the left-right direction. Therefore, the shape of the second wind guiding surface 32 is the same as that of the first wind guiding surface 31.

  With particular reference to FIGS. 9 and 10, in the front view of the tip end opening 12a of the air duct 12, the length D1 of the windproof plate 30 in the left-right direction is greater than the length D2 of the tip opening 12a in the left-right direction. The height H1 of the wind shield plate 30 is smaller than the height H2 of the tip end opening 12a. That is, a gap is formed between the upper edge of the wind shield plate 30 and the upper edge of the tip opening 12a, and the gap between the lower edge of the wind shield plate 30 and the lower edge of the tip opening 12a , A gap is formed. A gap is formed between the right end edge of the wind shield plate 30 and the right end edge of the tip opening 12a, and a gap is a gap between the left end edge of the wind shield plate 30 and the left edge of the tip opening 12a. Is formed. Thus, the front end opening 12 a is not covered entirely by the wind shielding plate 30, but a part of the front opening 12 a is covered by the wind shielding plate 30. Furthermore, as shown in FIG. 6, a gap is formed in the front-rear direction between the tip opening 12 a and the wind shield plate 30. For this reason, the air sent out from the tip end opening 12 a can be guided by the wind shield plate 30. The front-rear direction is a direction illustrated by an arrow A4 in FIG.

(About the operation of the blower structure)
The operation of the air blowing structure 1 of the present embodiment will be described with further reference to FIGS. 11 and 12. In FIG. 11 and FIG. 12, arrow F1 shows the flow of air sent out from the tip opening 12a of the air duct 12, and arrow F2 shows the flow of air sent out from the air outlet 15 of the air duct 12. .

  First, the air conditioner 11 is started, and the air is sent out to the air duct 12 from the air outlet 11a. The air sent out to the air duct 12 is sent out toward the room 102 from the plurality of air blowing openings 15 and the tip opening 12 a.

  As described above, a gap is formed between the tip opening 12 a and the wind shield plate 30 at the upper side and the lower side. Therefore, the air F1 delivered from the tip end opening 12a is delivered toward the perimeter zone P1 between the tip end opening 12a of the air duct 12 and the first wall 103 from the gap between them. The air F1 sent out from the tip end opening 12a is blocked by the wind shield plate 30, flows downward, and then flows along the first wall 103 (FIG. 4). For this reason, the air F1 sent out from the tip end opening 12a is not sent out so as to be blown to the first wall portion 103.

  Furthermore, the air F2 sent out from the tip end opening 12a is sent out in the left-right direction of the tip end opening 12a along the arc surface of the first and second wind guiding portions 31 and 32, and between adjacent air ducts 12 It is sent out toward the perimeter zone P2 between the first wall portion 103. Further, the air F2 sent out from the plurality of air blowing openings 15 is sent out in the direction substantially orthogonal to the air blowing direction of the air blowing duct 12, and is sent out toward the perimeter zone P2. Thus, by providing the wind shield plate 30, air can be sent to the front of the front end opening 12a while guiding the air in the right and left direction of the front end opening 12a, so air is efficiently sent to the perimeter zones P1 and P2. be able to.

  Further, as shown in FIG. 11 in particular, a part of the air F1 sent out from the tip end opening 12a strikes the wind shielding plate 30 and stays in the return parts 34 and 35 of the first and second wind guiding parts 31 and 32. . Further, the wind shield plate 30 plays a role of partition covering a part of the tip end opening 12a. Thus, the wind shield plate 30 plays a role in adjusting the amount of air sent from the tip opening 12a toward the perimeter zones P1 and P2. That is, by providing the wind shield plate 30, it is possible to reduce the amount of air sent out from the tip end opening 12a.

  One air conditioner 11 is installed in the air flow duct 12, and the amount of air sent out from the tip end opening 12a and the plurality of air flow openings 15 is constant. For this reason, when the amount of air sent out from the tip end opening 12a decreases, the amount of air sent out from the blowing opening 15 increases. By providing the wind shield plate 30 at the tip end opening 12a, the amount of air sent out from the tip end opening 12a can be reduced, and the amount of air not sent out from the tip end opening 12a can be reduced from the blowing opening 15 The amount of air delivered is increased, and the amount of air delivered from the blower opening 15 to the perimeter zone P2 can be increased.

  As mentioned above, the blower ducts 12 are installed at intervals of 6 to 8 m, for example. Therefore, it is required to widen the range affected by one air duct 12. That is, in the perimeter zone P2, it is also required to feed the air from the air duct 12 in the same manner as the perimeter zone P1. By using the wind shield plate 30 of the present embodiment, it is possible to efficiently feed air to the entire area of the perimeter zones P1 and P2. As described above, in the embodiment of the present application, by using the wind shield plate 30, it is possible to adjust the temperature of the perimeter zone with a simple configuration.

  In the present embodiment, the wind shield plate 30 includes the first wind guide surface 31 and the second wind guide surface 32, and guides the air sent out from the tip end opening 12a in the left-right direction of the air duct 12. However, depending on the arrangement of the air duct 12, the air flow sent out from the tip opening 12a may be provided so as to direct the flow of air to either the left or right side. In that case, the wind shield plate 30 may have, for example, one of the first wind guiding surface 31 and the second wind guiding surface 32.

  In the present embodiment, the wind shield plate 30 has the connection fixing portion 33. However, without providing the connection fixing portion 33, the base point 31a of the first wind guiding surface 31 and the second wind guide The base point 32 a of the surface 32 may be connected.

  In the present embodiment, the wind guiding surface of the wind shield plate 30 is an arc surface bulging with respect to a virtual straight line, but for example, it is a flat surface connecting the base point 31a to the remote point 31b It is also good.

  Further, in the present embodiment, the wind shield plate 30 is connected and fixed to the plate-like member 120 of the tip end opening 12a. However, the wind shield plate 30 may be located between the tip end opening 12a and the first wall portion 103, and may be suspended and fixed to a ceiling, for example. In this case, a connection fixing portion may be further provided above the first wind guiding surface 31 and the second wind guiding surface 32 of the wind shield plate 30.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same or equivalent scope of the present invention.

  Reference Signs List 1 air-blowing structure, 10 air-conditioning unit, 11 air-blowing structure, 10 air-conditioning unit, 11 air-conditioning unit, 11 a blow-out port, 12 air-flow duct, 12 a tip opening, 12 b suction port, 13 side, 14 bottom, 15 air-flow opening, 30 Wind shield plate, 31 first wind guide surface, 31a, 32a base point, 31b remote point, 31c end point, 31d virtual straight line, 32 second wind guide surface, 33 connection fixing portion, 34, 35 return portion, 101 ceiling, 102 Interior, 103 first wall, 104 windows, 105 second wall, 106 desks, 107 chairs, 109 partitions, 120 plate members, F1, F2 air, P1, P2 perimeter zones.

Claims (8)

Air ducts arranged along the ceiling,
A wind shield located between a tip opening located at the tip of the air duct and a wall surface of a building facing the tip opening and blocking passage of wind sent from the tip opening;
The wind shield structure includes a wind guide surface that guides the flow of air sent out from the tip opening toward the side of the air duct.   The wind guiding surface includes a first wind guiding surface for guiding the flow of air sent out from the tip opening toward one side of the air duct, and the flow of air sent out from the tip opening on the other side. The air blowing structure according to claim 1, further comprising a second wind guiding surface guiding in a side direction. The wind guiding surface has a base point closest to the tip opening and a remote point farthest from the tip opening as viewed from a ceiling;
The region extending from the base point to the remote point in the wind guiding surface is an arc surface expanded toward the wall surface with respect to a virtual straight line connecting the base point and the remote point. The blower structure described in. The wind guiding surface further has a tip point located beyond the remote point as viewed from the ceiling,
An area from the base point to the tip point via the remote point is continuous in a continuous arc surface,
The air blowing structure according to claim 3, wherein a shortest distance from the tip opening to a tip point of the wind guiding surface is shorter than a shortest distance from the tip opening to a remote point of the wind guiding surface.   The air blowing structure according to any one of claims 1 to 4, wherein the wind shielding plate is connected and fixed to a tip opening of the air blowing duct.   The air blowing structure according to any one of claims 1 to 4, wherein the wind shielding plate is suspended and fixed to the ceiling.   In front view of the tip opening, the length of the wind shield in the left-right direction is smaller than the length of the tip opening in the left-right direction, and the height of the wind shield is greater than the height of the tip opening The blower structure according to any one of claims 1 to 6, which is also small. The fan duct has a plurality of fan openings provided at intervals along the fan direction,
A plurality of the air ducts are arranged along the ceiling,
The air blowing structure according to any one of claims 1 to 7, wherein the plurality of air blowing ducts are provided to extend in the same direction at intervals.

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